CN108397583B - Safety valve and wall-mounted furnace heating system using same - Google Patents

Abstract

The invention provides a safety valve which is used for regulating and controlling the pressure of fluid and comprises a valve body, a sealing component, a fastener, an elastic component and an operating component, wherein an inner cavity and a pressure relief cavity communicated with the inner cavity are arranged in the valve body, the sealing component penetrates through the valve body and can move relative to the valve body, the operating component is connected to the sealing component, the fastener is connected to the valve body and limits the axial movement of the operating component, one end of the elastic component abuts against the sealing component, the other end of the elastic component abuts against the operating component, and the operating component can rotate relative to the sealing component and drive the sealing component to move axially so as to control the connection and disconnection between the inner cavity and the pressure relief cavity. The invention further provides a wall-mounted boiler heating system. The safety valve provided by the invention is simple in structure, convenient to install, capable of realizing manual pressure relief and wide in application prospect.

Description

Safety valve and wall-mounted furnace heating system using same

Technical Field

The invention relates to the technical field of fluid control, in particular to a safety valve and a wall-mounted furnace heating system using the same.

Background

The safety valve is opened when the medium pressure exceeds the pressure value, and can discharge fluid medium to the outside of the fluid system so as to reduce the system pressure, so that the fluid system is prevented from being damaged due to overhigh medium pressure, the safe operation of equipment and the life safety of personnel are guaranteed, and the safety valve is widely applied to the field of fluid control. However, the existing safety valve is complex in structure and inconvenient to install, and manual pressure relief cannot be achieved.

Disclosure of Invention

In view of the above, there is a need for an improved safety valve and a wall-hanging stove heating system using the same, which has a simple structure, is convenient to install, and can realize manual pressure relief.

The invention provides a safety valve which is used for regulating and controlling the pressure of fluid and comprises a valve body, a sealing component, a fastener, an elastic component and an operating component, wherein an inner cavity and a pressure relief cavity communicated with the inner cavity are arranged in the valve body, the sealing component penetrates through the valve body and can move relative to the valve body, the operating component is connected to the sealing component, the fastener is connected to the valve body and limits the axial movement of the operating component, one end of the elastic component abuts against the sealing component, the other end of the elastic component abuts against the operating component, and the operating component can rotate relative to the sealing component and drive the sealing component to move axially so as to control the connection and disconnection between the inner cavity and the pressure relief cavity.

Further, the sealing assembly comprises a sealing element and a sealing seat, the sealing element is connected to the sealing seat and the fastener, the sealing seat is connected with the fastener in a rotation stopping mode, a first protrusion is arranged on the inner wall of the operating part, an inclined plane platform is arranged on the sealing seat, and the inclined plane of the inclined plane platform abuts against the first protrusion.

Furthermore, when a user controls the operating part to rotate and drive the sealing seat to move, the sealing seat drives the sealing element to move, the safety valve is closed when the sealing element isolates the inner cavity of the valve body from the pressure relief cavity, and the safety valve is opened when the sealing element is separated from the valve body so that the inner cavity is communicated with the pressure relief cavity.

Further, the seal seat is fixedly embedded with the fastening piece, and the fastening piece limits axial rotation of the seal seat.

Furthermore, a first groove is formed in the outer wall of the sealing seat, a second protrusion is arranged on the inner wall of the fastening piece, and the sealing seat and the fastening piece are fixedly embedded through the first groove and the second protrusion.

Furthermore, a third protrusion is arranged on the outer side face of the operating part, a retaining ring is arranged on the outer side face of the fastener, the third protrusion is embedded between the retaining ring and the second protrusion, one end of the third protrusion abuts against the retaining ring, and the other end of the third protrusion abuts against the second protrusion.

furthermore, one end of the fastening piece abuts against the sealing piece, the end face of one end of the sealing piece is arranged between the fastening piece and the valve body, and the fastening piece and the valve body clamp and fix the sealing piece.

Further, a fourth protrusion is arranged on the outer side face of the fastener, and the fourth protrusion limits the distance of the fastener embedded into the valve body.

Furthermore, the fastening piece and the valve body are mutually fixed in one or more connection modes of screw joint, gluing, welding and riveting.

the present invention provides a wall-hanging stove heating system provided with a safety valve for regulating and controlling a pressure of a fluid, wherein the safety valve is any one of the safety valves described above.

The safety valve provided by the invention is simple in structure, convenient to install, capable of realizing manual pressure relief and wide in application prospect.

Drawings

Fig. 1 is a perspective view of a safety valve according to an embodiment of the present invention.

Fig. 2 is an exploded view of the safety valve of fig. 1.

Fig. 3 is a schematic cross-sectional view of the safety valve of fig. 1.

Fig. 4 is a schematic view of the fastener shown in fig. 1.

Fig. 5 is a perspective view of the sealing seat shown in fig. 1.

Fig. 6 is a schematic structural view of the seal holder shown in fig. 5.

Fig. 7 is a structural schematic view of the seal holder shown in fig. 5 from another view angle.

Fig. 8 is a structural schematic diagram of the seal holder shown in fig. 5 from a further viewing angle.

fig. 9 is a schematic structural view of a seal holder according to a second embodiment of the present invention.

Fig. 10 is a schematic structural view of the seal holder shown in fig. 9 from another perspective.

FIG. 11 is a perspective view of the operating member of FIG. 1.

FIG. 12 is a schematic structural view of the operating member shown in FIG. 11.

FIG. 13 is a schematic view of the operating member shown in FIG. 11 from another perspective.

FIG. 14 is a schematic structural diagram of an operating element according to a third embodiment of the present invention.

FIG. 15 is a schematic view of the operating member shown in FIG. 14 from another perspective.

Description of the main elements

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3 together, fig. 1 is a schematic perspective view of a safety valve 100 according to an embodiment of the present invention, fig. 2 is an exploded schematic view of the safety valve 100 shown in fig. 1, and fig. 3 is a schematic cross-sectional view of the safety valve 100 shown in fig. 1, where the safety valve 100 is applied to a fluid medium system, and is opened when a pressure of a fluid medium exceeds a preset pressure value, so as to discharge the fluid medium in the fluid system to the outside, reduce the pressure in the fluid system, and ensure safe operation of equipment and personal safety of personnel.

In the present embodiment, the relief valve 100 is applied to pressure control in a wall-hanging stove heating system. It is understood that in other embodiments, the safety valve 100 may be applied to other environments where liquid pressure control is performed, such as municipal water networks, music fountains, industrial facilities, etc., as long as it can safely control the pressure of the fluid medium.

The safety valve 100 includes a valve body 10, a sealing member 20, a fastening member 30, a sealing seat 40, an elastic member 50 and an operating member 60, wherein the sealing member 20 is carried by the valve body 10, the fastening member 30 and the sealing seat 40, a part of the sealing member 20 is accommodated in a hollow inner cavity 11 of the valve body 10, the sealing member 20 is disposed between the valve body 10 and the fastening member 30 and connected to the sealing seat 40, the fastening member 30 is embedded in the valve body 10 and abuts against the sealing member 20, one end of the sealing seat 40 is fixedly connected to the sealing member 20, the other end of the sealing seat is embedded in the operating member 60, one end of the elastic member 50 abuts against the operating member 60, the other end of the elastic member acts. The valve body 10 is used for containing fluid media, so that the fluid media can flow in the valve body 10, the sealing element 20 is used for sealing the valve body 10, the fastening element 30 is used for fixing the sealing element 20, the sealing seat 40 is used for connecting and driving the sealing element 20 to move, the elastic element 50 is used for providing a preset pressure value by means of elastic deformation of the elastic element, and the operating element 60 is used for being operated by a user to adjust the preset pressure value. When the pressure of the fluid medium in the valve body 10 exceeds the preset pressure value of the elastic member 50, the fluid medium overcomes the elastic force of the elastic member 50 and is discharged outwards through the valve body 10, so that the pressure relief process of the fluid medium system is realized.

The valve body 10 is provided with an inner cavity 11 and a pressure relief opening 12, the inner cavity 11 is communicated with a fluid system, the valve body 10 is further provided with a mounting cavity, the mounting cavity is used for mounting a sealing element 20 in the valve body 10, and the inner cavity 11 and the pressure relief opening 12 in the valve body 10 are isolated from each other under the sealing effect of the sealing element 20. When the safety valve 100 is in a closed state, the inner cavity 11 in the valve body 10 is isolated from the pressure relief port 12, when the pressure of the fluid medium exceeds a preset pressure value, the safety valve 100 is opened, the inner cavity 11 in the valve body 10 is communicated with the pressure relief port 12, and the fluid medium flows out through the pressure relief port 12 to realize a pressure relief process.

In this embodiment, the inner cavity 11 and the pressure relief opening 12 are perpendicular to each other. It is understood that in other embodiments, the communication between the inner cavity 11 and the pressure relief port 12 may be at other angles, as long as the pressure relief process is realized.

an inner thread 13 is formed on the inner wall of one end of the valve body 10, and the inner thread 13 is used for screwing the fastening piece 30, so that the fastening piece 30 is tightly connected with the valve body 10. It is understood that in other embodiments, the fastening member 30 and the valve body 10 may be fixed to each other by other connecting methods such as welding, riveting, gluing, etc., and the internal thread 13 may be omitted when the fastening member 30 and the valve body 10 are fixed to each other by other connecting methods such as welding, riveting, gluing, etc.

The valve body 10 is provided with an installation cavity 15 for accommodating the fastening piece 30 and the seal seat 40, the inner wall of the installation cavity 15 is attached to the outer wall of the fastening piece 30 and the outer wall of the seal seat 40, the outer wall surface of the valve body 10 provided with the installation cavity 15 is provided with a second groove 14 along the circumferential direction of the central axis 16, the cross section of the second groove 14 is approximately square, the second groove 14 is used for accommodating the part of the sealing piece 20, the inner side edge position of the second groove 14, which points to the central axis 16, extends outwards along the direction of the central axis 16 and forms a convex edge 17, the convex edge 17 is used for abutting against the sealing piece 20, so that the part of the sealing piece 20 can be tightly embedded into the second groove 14, the valve body 10 is matched with the fastening piece 30, the part of the sealing piece 20 is extruded and fixed in the second groove 14, and the end face. It is understood that in other embodiments, the valve body 10 may be riveted, glued, etc. to the end face of the sealing member 20.

The sealing member 20 has a substantially hollow cylindrical shape, and one end of the sealing member 20 is connected to the valve body 10 and the other end is fixedly connected to the sealing seat 40. In this embodiment, the sealing member 20 is provided with an edge 21 extending outward along a direction perpendicular to the central axis thereof, the edge 21 is disposed between the valve body 10 and the fastening member 30, the edge 21 on the sealing member 20 extends into and is fixed in the second groove 14 between the protruding edge 17 and the inner wall surface of the mounting cavity 15, the edge 21 on the sealing member 20 is embedded in the second groove 14 under the support of the protruding edge 17 on the valve body 10, and is fixed under the extrusion of the valve body 10 and the fastening member 30, so that the fixed connection between one end of the sealing member 20 and the valve body 10 is realized. It will be appreciated that in other embodiments, the rim 21 may be omitted when the seal 20 is secured to the valve body 10 by riveting, gluing, or other attachment means.

The sealing element 20 is fixedly connected to one end of the sealing seat 40, the sealing element 20 is provided with a hollow accommodating cavity 22, the end of the sealing seat 40 is sleeved with the sealing element 20, the end of the sealing seat 40 is accommodated in the accommodating cavity 22 on the sealing element 20, the sealing element 20 is elastic, end face fixation is realized at one end of the sealing element 20 under extrusion fixation of the valve body 10 and the fastening element 30, the other end of the sealing element is fixedly connected with the sealing seat 40, and the part of the sealing element 20 sleeved on the sealing seat 40 can be driven by the sealing seat 40 to stretch and deform, so that mutual isolation/mutual communication between the inner cavity 11 of the valve body 10 and the pressure relief port 12 is realized.

In the present embodiment, the sealing member 20 is fixedly connected to the sealing seat 40 by a bonding connection method. It is understood that in other embodiments, the sealing member 20 may be fixedly connected to the sealing seat 40 by riveting, vacuum suction, or other methods.

Referring to fig. 4, fig. 4 is a schematic structural diagram of the fastening member 30 shown in fig. 1, the fastening member 30 is connected to the valve body 10, the sealing member 20, the sealing seat 40 and the operating member 60, one end of the fastening member 30 abuts against the sealing member 20, the other end of the fastening member 30 is connected to the sealing seat 40 and the operating member 60 in sequence, one end of the fastening member 30 is embedded in the valve body 10, and the fastening member 30 is used for fixing the sealing member 20, the sealing seat 40 and the operating member 60.

The outer wall of one end, far away from the operating part 60, of the fastener 30 is provided with an external thread 31, the external thread 31 is matched with the internal thread 13 correspondingly arranged on the valve body 10, and the fastening part 30 can be screwed with the valve body 10 through mutual matching of the external thread 31 and the internal thread 13. It is understood that when the fastening member 30 and the valve body 10 are fixed to each other by riveting, welding, gluing, or other connecting means, the external thread 31 formed on the fastening member 30 and the internal thread 13 formed on the valve body 10 may be omitted.

The end of the fastening member 30 away from the operating member 60 abuts against the sealing member 20, and the end of the fastening member 30 is matched with the valve body 10, so that the end face of the sealing member 20 is fixed by the valve body 10 and the fastening member 30. The outer wall of the fastening member 30 extends in a direction perpendicular to the central axis thereof and forms a fourth protrusion 32, the fourth protrusion 32 abuts against the valve body 10, and the fourth protrusion 32 is used for limiting the axial distance of the fastening member 30 screwed into the valve body 10 and preventing the fastening member 30 screwed into the valve body 10 too far from crushing the sealing member 20.

The upper end face of the fastener 30 extends inwards along the direction perpendicular to the central axis of the fastener and forms a retainer ring 33, the retainer ring 33 is annular, a third groove 34 is formed in the side wall of the retainer ring 33, the third groove 34 penetrates through the retainer ring 33 along the central axis direction of the fastener 30, the retainer ring 33 and the third groove 34 are connected with the operating part 60 in a matched mode, and therefore the fastener 30 is fixedly connected with the operating part 60. In the present embodiment, the number of the third recesses 34 is two, and the two third recesses 34 are provided on the side wall of the retainer ring 33 so as to be symmetrical with respect to the axial center of the fastener 30. It is understood that the number of the third grooves 34 is not limited to two, and in other embodiments, the number of the third grooves 34 may be one or more than two.

The inner wall of the fastening member 30 extends inwards in a direction perpendicular to the central axis thereof and forms a second protrusion 35 corresponding to the third groove 34, the second protrusion 35 is aligned with the corresponding third groove 34 in the direction of the central axis of the fastening member 30, and the second protrusion 35 is used for cooperating with the sealing seat 40 to realize the fixed connection between the fastening member 30 and the sealing seat 40. In the present embodiment, the number of the second protrusions 35 is two, and the two second protrusions 35 are provided on the inner wall of the fastener 30 in a manner symmetrical with respect to the center of the axial direction of the fastener 30.

Referring to fig. 5 to 8 together, fig. 5 is a schematic perspective view of the seal seat 40 shown in fig. 1, fig. 6 is a schematic structural view of the seal seat 40 shown in fig. 5, fig. 7 is a schematic structural view of another view of the seal seat 40 shown in fig. 5, fig. 8 is a schematic structural view of another view of the seal seat 40 shown in fig. 5, one end of the seal seat 40 is fixedly connected to the sealing member 20, the other end of the seal seat is connected to the operating member 60, an outer wall of the seal seat 40 is embedded with an inner wall of the fastening member 30, so as to achieve the fastening connection of the seal seat 40 and the fastening member 30, the seal seat 40 has a hollow cavity, and one end of the seal seat 40, which is close to the operating member 60, abuts against the elastic member 50.

The waist of the seal seat 40 extends outwards along the direction perpendicular to the central axis thereof to form a fifth protrusion 41, the fifth protrusion 41 is provided with a first groove 42, the first groove 42 penetrates through the fifth protrusion 41 along the direction parallel to the central axis of the seal seat 40, the first groove 42 on the seal seat 40 is embedded and fixed with the second protrusion 35 on the fastening member 30, and the first groove 42 is used for limiting the circumferential rotation of the seal seat 40 and realizing the rotation-stopping connection between the seal seat 40 and the fastening member 30. In the present embodiment, the number of the first grooves 42 is two, and the two first grooves 42 are arranged on the fifth protrusion 41 in a manner of being centrosymmetric in the axial direction of the seal holder 40. It will be appreciated that in other embodiments, the number of first recesses 42 may be one or more than two, so long as they are consistent with the number of second protrusions 35 on fastener 30.

The one end that seal receptacle 40 is close to operating element 60 extends and forms inclined plane platform 43 outward along the direction of perpendicular central axis, the one end that inclined plane platform 43 is close to operating element 60 is the plane, the one end of keeping away from operating element 60 is the inclined plane, seal receptacle 40 passes through inclined plane platform 43 gomphosis and connects in operating element 60, inclined plane platform 43 and operating element 60 follow-up cooperation, inclined plane platform 43 can be under the drive of operating element 60 along the central axis direction motion of seal receptacle 40, it is used for adjusting the deformation volume of elastic component 50, thereby adjust the pressure value that elastic component 50 predetermines. The inclined platform 43 is provided with a fourth groove 44, the fourth groove 44 penetrates through the inclined platform 43 along the central axis direction of the seal seat 40, and the fourth groove 44 is used for embedding the operating element 60 to realize circumferential fixation of the seal seat 40 and the operating element 60. In the present embodiment, the number of the fourth concave grooves 44 is two, and the two fourth concave grooves 44 are provided on the inclined surface base 43 so as to be symmetrical with respect to the axial center of the inclined surface base 43. It will be appreciated that in other embodiments, the number of the fourth grooves 44 may also be one or more than two, as long as it enables circumferential fixation of the seal holder 40 to the operating member 60.

In the present embodiment, the fifth protrusion 41 has a circular ring shape. Referring to fig. 9 to 10, fig. 9 is a schematic structural view of a seal seat 40a according to a second embodiment of the present invention, and fig. 10 is a schematic structural view of another perspective of the seal seat 40a shown in fig. 9, in this embodiment, a fifth protrusion 41 disposed on the seal seat 40a is a rounded hexagon. It is understood that, in other embodiments, the fifth protrusion 41 may also have other polygonal shapes such as a rounded rectangle, and may also have other shapes such as a star shape and a petal shape, as long as the seal holder 40 can be fixed to the fastener 30.

In the present embodiment, the seal holder 40 and the seal 20 are separate from each other and are two components. It is understood that in other embodiments, the sealing seat 40 and the sealing member 20 may be integrally formed, and when the sealing seat 40 and the sealing member 20 are integrally formed, the rim 21 of the sealing member 20 may be omitted.

The elastic element 50 is disposed in the mounting cavity of the sealing seat 40, one end of the elastic element abuts against the operating element 60, and the other end of the elastic element acts on the sealing seat 40, and the elastic element 50 has a deformation amount capable of acting its own elastic force on the sealing seat 40 and providing a preset pressure value for the safety valve 100. When the deformation of the elastic member 50 is relatively small, the preset pressure value of the safety valve 100 is relatively low; when the deformation of the elastic member 50 is relatively large, the predetermined pressure value of the safety valve 100 is relatively high. In the present embodiment, the elastic member 50 is a spring. It is understood that in other embodiments, other types of elastomers, such as rubber columns, may be used for the resilient member 50.

Referring to fig. 11 to 13 together, fig. 11 is a schematic perspective view of the operating element 60 shown in fig. 1, fig. 12 is a schematic structural view of the operating element 60 shown in fig. 11, fig. 13 is a schematic structural view of the operating element 60 shown in fig. 11 from another perspective, the operating element 60 is substantially hollow and cylindrical, one end of the operating element 60 is embedded in an inner wall of the fastening element 30, the other end of the operating element 60 abuts against the elastic element 50, one end of the operating element 60 close to the valve body 10 extends outward along a direction perpendicular to a central axis thereof and forms a third protrusion 61, a thickness of the third protrusion 61 is matched with thicknesses of the retaining ring 33 and the second protrusion 35 on the fastening element 30, and the third protrusion 61 on the operating element 60 is embedded between the retaining ring 33 and the second protrusion 35 on the. The third protrusion 61 on the operating element 60 is provided with a fifth groove 62 corresponding to the second protrusion 35 on the fastening element 30, the fifth groove 62 penetrates through the third protrusion 61 along the central axis direction of the operating element 60, the fifth groove 62 is provided corresponding to the second protrusion 35 on the fastening element 30 and is used for avoiding the second protrusion 35, so that the third protrusion 61 on the operating element 60 can be embedded between the retainer ring 33 and the second protrusion 35. After the operating member 60 is inserted into the fastening member 30, the operating member 60 rotates to separate the fifth groove 62 on the operating member 60 from the second protrusion 35 on the fastening member 30, and at this time, one end of the third protrusion 61 on the operating member 60 is abutted by the retaining ring 33 of the fastening member 30, and the other end is abutted by the second protrusion 35 of the fastening member 30, so that the fastening member 30 axially fixes the operating member 60.

In the present embodiment, the number of the fifth recesses 62 is also two, and the two fifth recesses 62 are oppositely opened on the third protrusion 61 of the operating element 60. It is understood that the number of the fifth grooves 62 may be one or more than two, as long as the number of the fifth grooves 62 is consistent with the number of the second protrusions 35 on the fastener 30.

The inner wall of the operating element 60 extends along a direction pointing to the central axis thereof to form a first protrusion 63, the first protrusion 63 and a fourth groove 44 formed in the sealing seat 40 are arranged correspondingly, the fourth groove 44 is used for avoiding the first protrusion 63, the fourth groove 44 and the first protrusion 63 are matched with each other, so that the first protrusion 63 can pass through the fourth groove 44 on the sealing seat 40, at this time, when the sealing seat 40 rotates by a certain angle to separate the fourth groove 44 and the first protrusion 63 from each other, one end of the inclined platform 43 on the sealing seat 40 abuts against the first protrusion 63 on the operating element 60, and therefore the limit of the operating element 60 on the axis of the sealing seat 40 is realized.

In the present embodiment, the number of the first protrusions 63 is two, and the two first protrusions 63 are symmetrically disposed. It is understood that in other embodiments, the number of the first protrusions 63 may be one or more than two. As long as the number of the first protrusions 63 is consistent with the number of the fourth recesses 44.

The inner side surface of the operation member 60 at the end away from the valve body 10 extends inward along the central axis direction thereof and forms a boss 64, and the boss 64 is used for sheathing and fixing the elastic member 50. In this embodiment, the outer side surface of the operating element 60 at the end far away from the valve body 10 is provided with a texture (not numbered), and the texture is used for improving the hand feeling of a user during operation and preventing the user from slipping when the operating element 60 is controlled to rotate; the end surface of the operation element 60, which is far from the valve body 10, is further provided with a mark (not shown), which is used for indicating information of the safety valve 100, such as a pressure fixed value of the safety valve 100, a rotation direction of the safety valve 100, and the like.

In this embodiment, the operating element 60 is a knob, and the user controls the operation element 60 to rotate by the texture on the operating element 60. It will be appreciated that other types of operating members such as handles may be used for the operating member 60 in other embodiments.

In the present embodiment, the third projection 61 has a substantially circular shape. Referring to fig. 14 to 15 together, fig. 14 is a schematic structural view of an operating element 60a according to a third embodiment of the present invention, and fig. 15 is a schematic structural view of the operating element 60a shown in fig. 14 from another perspective, in the present embodiment, the third protrusion 61 is a rounded hexagon. It is understood that, in other embodiments, the third protrusion 61 may also have other polygonal shapes such as a rounded rectangle, and may also have other shapes such as a star shape and a petal shape.

The installation process of the safety valve 100 is briefly described below:

One end of the elastic element 50 is sleeved on the boss 64 on the operating element 60, the other end of the elastic element abuts against the sealing seat 40, one end of the sealing seat 40, which is provided with the inclined platform 43, extends into the operating element 60, so that the inclined platform 43 passes through the first protrusion 63 on the operating element 60 through the fourth groove 44, one end of the inclined platform 43 on the sealing seat 40 abuts against the first protrusion 63 on the operating element 60, and the sealing seat 40 is kept in tight connection with the operating element 60 under the elastic force of the elastic element 50, thereby realizing the tight connection among the sealing seat 40, the elastic element 50 and the operating element 60;

Fixedly connecting the sealing element 20 to one end of the sealing seat 40 close to the valve body 10, and then sleeving the operating element 60, the elastic element 50 and the sealing seat 40 into the fastener 30, so that the third protrusion 61 of the operating element 60 is fixed between the retainer ring 33 and the second protrusion 35 on the fastener 30, and the first groove 42 on the sealing seat 40 is in fit connection with the second protrusion 35 on the fastener 30, so as to limit the circumferential rotation of the sealing seat 40, thereby realizing the fastening connection between the fastener 30 and the sealing seat 40, the elastic element 50 and the operating element 60;

Finally, the fastening member 30 is screwed into the valve body 10, so that the end face of the fastening member 30 abuts against and presses the end face of the sealing member 20, thereby realizing the fixed connection of the fastening member 30 with the valve body 10 and the sealing member 20, and completing the installation process of the safety valve 100.

The working principle of the lower safety valve 100 is briefly described below:

The fluid in the inner cavity 11 of the valve body 10 directly contacts with the sealing element 20, the fluid medium transmits pressure to the sealing element 20, one end of the sealing element 20 is under the pressure of the fluid medium, and the other end of the sealing element is under the elastic force of the elastic element 50, when the pressure of the fluid medium is smaller than the elastic force of the sealing element 20, namely the pressure of the fluid medium is lower than the preset pressure value of the safety valve 100, the sealing element 20 is fixed in the valve body 10 by the extrusion of the elastic element 50, and the safety valve 100 is closed; when the pressure of the fluid medium is greater than the elastic force applied to the sealing element 20, that is, the pressure of the fluid medium is higher than the preset pressure value of the safety valve 100, the sealing element 20 is pushed open by the fluid medium, the inner cavity 11 in the valve body 10 is communicated with the pressure relief opening 12, the fluid medium is discharged outwards through the pressure relief opening 12, and the pressure of the fluid medium is reduced; when the pressure of the fluid medium drops to a value lower than the preset pressure value of the safety valve 100, the sealing member 20 overcomes the pressure of the fluid medium under the elastic force of the elastic member 50, seals the inner cavity 11, and isolates the inner cavity 11 from the pressure relief port 12, thereby completing the pressure relief process.

The manual pressure relief process of the pressure of the safety valve 100 is briefly described as follows:

The user controls the operation element 60 to rotate, because the first protrusion 63 in the operation element 60 and the inclined plane platform 43 on the seal seat 40 are in contact with each other in an inclined plane manner, the first protrusion 63 abuts against the inclined plane platform 43, and because the seal seat 40 cannot rotate circumferentially under the limitation of the fastener 30, the seal seat can only extend back and forth along the axial direction of the seal seat, and along with the rotation of the operation element 60, the first protrusion 63 in the operation element 60 abuts against the inclined plane platform 43 at different positions, so that the inclined plane platform 43 is raised/lowered, and the operation process that the rotation of the operation element 60 drives the seal seat 40 to move back and forth is realized; when the sealing seat 40 moves away from the valve body 10, the sealing member 20 is separated from the valve body 10 under the driving of the sealing seat 40, so that the inner cavity 11 and the pressure relief opening 12 in the valve body 10 are communicated with each other, and the safety valve 100 discharges fluid medium outwards, thereby completing the manual pressure relief process.

According to the safety valve 100 provided by the invention, one end of the elastic element 50 abuts against the operating element 60, and the other end abuts against the sealing seat 40, and the elastic element has consistent installation positions, so that a complicated adjustment process that the pressure value can be adjusted and controlled only by adjusting the height of the elastic element 50 is simplified, and the safety valve is simple in structure and convenient to install. In addition, the safety valve 100 provided by the invention can complete the manual pressure relief process, further improves the pressure control performance of the safety valve 100 on the fluid medium, and has wide application prospects.

The invention also provides a wall-hanging stove heating system using the safety valve 100, wherein the safety valve 100 is arranged in the wall-hanging stove heating system and is used for preventing the pressure of a fluid medium in the wall-hanging stove heating system from being too high, and ensuring the safe operation of the wall-hanging stove heating system and the safety of users.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. A safety valve (100) for regulating and controlling the pressure of a fluid is characterized in that the safety valve (100) comprises a valve body (10), a sealing assembly, a fastener (30), an elastic member (50) and an operating member (60), wherein an inner cavity (11) and a pressure relief cavity (12) communicated with the inner cavity (11) are arranged in the valve body (10), the sealing assembly is arranged in the valve body (10) in a penetrating manner and can move relative to the valve body (10), the operating member (60) is connected to the sealing assembly, the fastener (30) is connected to the valve body (10) and limits the axial movement of the operating member (60), one end of the elastic member (50) abuts against the sealing assembly, the other end of the elastic member abuts against the operating member (60), and the operating member (60) can rotate relative to the sealing assembly and drive the sealing assembly to move axially, so as to control the connection and disconnection between the inner cavity (11) and the pressure relief cavity (12);

Fastener (30) are kept away from the terminal surface of valve body (10) inwards extends and forms retaining ring (33), the inner wall of fastener (30) inwards extends and forms second arch (35), the one end that operating part (60) are close to valve body (10) outwards extends and forms third arch (61), seted up on third arch (61) and corresponded to fifth recess (62) of second arch (35), operating part (60) pass through fifth recess (62) pass through second arch (35), and press from both sides and locate between retaining ring (33) and second arch (35).

2. The safety valve (100) according to claim 1, wherein the sealing assembly comprises a sealing element (20) and a sealing seat (40), the sealing element (20) is connected to the sealing seat (40) and the fastening element (30), the sealing seat (40) is connected with the fastening element (30) in a rotation-stopping manner, a first protrusion (63) is arranged on the inner wall of the operating element (60), a slope table (43) is arranged on the sealing seat (40), and the slope of the slope table (43) abuts against the first protrusion (63).

3. The safety valve (100) according to claim 2, wherein the user controls the operating member (60) to rotate and move the sealing seat (40), the sealing seat (40) moves the sealing member (20), the safety valve (100) is closed when the sealing member (20) separates the inner cavity (11) of the valve body (10) from the pressure relief cavity (12), and the safety valve (100) is opened when the sealing member (20) separates from the valve body (10) to communicate the inner cavity (11) with the pressure relief cavity (12).

4. The safety valve (100) according to claim 2, wherein the sealing seat (40) is fitted and fixed with the fastening member (30), the fastening member (30) limiting the axial rotation of the sealing seat (40).

5. The safety valve (100) according to claim 4, wherein the outer wall of the sealing seat (40) is provided with a first groove (42), and the sealing seat (40) and the fastening member (30) are fixed by the first groove (42) and the second protrusion (35) in a fitting manner.

6. The safety valve (100) according to claim 5, wherein a third protrusion (61) is provided on an outer side surface of the operating member (60), the third protrusion (61) is embedded between the retainer (33) and the second protrusion (35), one end of the third protrusion (61) abuts against the retainer (33), and the other end abuts against the second protrusion (35).

7. The safety valve (100) according to claim 2, wherein one end of the fastening member (30) abuts against the sealing member (20), an end face of one end of the sealing member (20) is provided between the fastening member (30) and the valve body (10), and the fastening member (30) clamps and fixes the sealing member (20) with the valve body (10).

8. The safety valve (100) according to claim 1, characterized in that a fourth protrusion (32) is provided on the outer side of the fastening member (30), the fourth protrusion (32) limiting the distance the fastening member (30) is embedded in the valve body (10).

9. The safety valve (100) of claim 1, wherein the fastener (30) and the valve body (10) are secured to each other by one or more of screwing, gluing, welding and riveting.

10. a wall-hanging stove heating system in which a relief valve (100) is provided to regulate the pressure of a fluid, characterized in that the relief valve (100) is the relief valve (100) of any one of claims 1 to 9.