CN117268625B

CN117268625B - Manometer connecting piece

Info

Publication number: CN117268625B
Application number: CN202311154294.9A
Authority: CN
Inventors: 徐海涛
Original assignee: Suzhou Xinyida Instrument Technology Co ltd
Current assignee: Suzhou Xinyida Instrument Technology Co ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-04-12
Anticipated expiration: 2043-09-08
Also published as: CN117268625A

Abstract

The invention relates to a pressure gauge connector, comprising: the invention realizes the function of assembling after nuts at two ends are screwed and sealed, and before assembling, the included angle between the first disc and the second disc can be adjusted according to the direction of the display surface of the invention, thereby realizing that the display panel of the pressure meter reading after the screwing and sealing is always kept at a convenient-to-observe position.

Description

Manometer connecting piece

Technical Field

The invention relates to the technical field of pressure gauge installation, in particular to a pressure gauge connecting piece.

Background

A pipe is an indispensable structure in fluid transportation, such as transportation of liquid, transportation of gas. A pressure gauge is typically placed on the pipe to measure the pressure within the pipe.

When the pressure gauge is installed, a section of pressure gauge connector is usually connected to the pressure gauge, then the pressure gauge connector is in threaded connection with the connector on the pipeline to improve the sealing performance of the pipeline, so that leakage is avoided; meanwhile, when the pressure gauge is installed, safety problems are considered, and accidents are avoided.

In order to solve this problem, a rotatable universal joint is generally selected, for example, patent application No. 201420698188.7 discloses a pressure gauge connector, a first end of the connector is provided with a first hole for connecting a pressure gauge; the connecting piece also comprises a clamping channel which is connected and communicated with the first pore canal; the inner diameter of the clamping channel is smaller than that of the first pore canal; the second end of the connecting piece is connected with the pipeline valve, a second pore canal is formed in the second end of the connecting piece, the second pore canal is connected and communicated with the clamping channel, and the inner diameter of the second pore canal is larger than that of the clamping channel; the sliding block is arranged in the second pore canal, a sealing ring is wound on the sliding block, and the sealing ring is positioned between the sliding block and the pore wall of the second pore canal. According to the pressure transmission device, the pressure of the medium B is sequentially transmitted to the sliding block, the medium A and the pressure gauge for display by utilizing the pressure transmission principle, if the pressure gauge is damaged by external force and leaks, the sliding block can be flushed into the clamping channel by the pressure and does not move, so that the medium B is prevented from leaking under the condition that the pressure gauge is damaged, and accidents are avoided; however, the problem that the pressure gauge can only face in a fixed direction occurs in the same way as in the patent, and the pressure gauge is inconvenient to check in a complex production field. The patent application number is: the prior art patent of CN201820676258.7, which adopts a rotatable joint structure and can be sealed when being screwed, but the joint of the prior art is affected by pressure, and has great influence on the service life and sealing effect of the rotating sealing part, which can cause the service life to be low, and the joint is easy to deform after being disassembled and assembled several times, so that leakage is caused. In view of the above problems, a pressure gauge connector is specifically proposed.

Disclosure of Invention

In view of the above-mentioned shortcomings and disadvantages of the prior art, the invention provides a pressure gauge connecting piece, which has the advantages of strong pressure resistance, convenient assembly and adjustment, good sealing effect and convenient installation and adjustment, and can reduce the problem of short service life brought by rotating a sealing piece, and can effectively avoid accidents in a special structural mode.

In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:

a pressure gauge connection, comprising: the top end of the connecting disc structure is assembled at the bottom end of the pressure gauge, the bottom end of the connecting disc structure is assembled at the top end of the pressure pipeline to be tested, and the stabilizer for fixing the pipeline is symmetrically assembled on the outer side of the connecting disc structure;

the connecting disc structure comprises a top connecting piece and a bottom connecting piece;

the top connecting piece comprises a first disc, and a first mounting hole is formed in the circumferential array at the outer end of the top of the first disc;

the bottom connecting piece comprises a second disc, a second mounting hole corresponding to the first mounting hole in size and position is formed in the circumferential array at the outer end of the top of the second disc, and the first mounting hole and the second mounting hole are assembled through bolts; the center of the bottom end of the first disc is welded with a catering part coaxial with the first disc, the center of the top end of the second disc is welded with an interference part coaxial with the second disc, and the interference part is sleeved outside the catering part and is propped against the catering part when in sealing installation.

Preferably, a first connecting pipe is welded at the top end of the first disc, and a first nut is welded at the top end of the first connecting pipe.

Preferably, a second connecting pipe is welded on the lower surface of the second disc, and a second nut is welded on the bottom end of the second connecting pipe.

Preferably, the stabilizer comprises a first fixed ring and a second fixed ring, connecting claws are welded at two ends of the first fixed ring and the second fixed ring, connecting holes for installing bolts are formed in the connecting claws, and the connecting holes are installed in a matched mode through bolts and nuts.

More preferably, the top end of the first fixing ring is welded with a collar, a rotatable sleeve joint part is sleeved in the collar, a screwed pipe is welded at the top end of the sleeve joint part, a long bolt is screwed in the screwed pipe, and the long bolt is sleeved on the inner surfaces of the first mounting hole and the second mounting hole.

More preferably, the positions of the first mounting hole and the second mounting hole, where the long bolts are not mounted, are provided with short bolts.

Preferably, a plurality of sealing circular grooves are formed in the inner end of the bottom of the first disc, a plurality of clamping grooves are formed in the inner end of the top of the second disc, a rubber ring is arranged in each clamping groove, and the top ends of the rubber rings are abutted to the sealing circular grooves during installation.

More preferably, the bottom of the cross section of the rubber ring is square, and the top of the cross section of the rubber ring is semicircular; the bottom of the rubber ring can be clamped in the clamping groove through deformation.

Preferably, the inner diameter of the top end of the interference piece is smaller than the diameter of the outermost end of the catering piece, the bottom of the side section of the catering piece is in a convex arc shape, and the top of the side section of the interference piece is in a concave arc shape.

The pressure gauge connecting piece has the following beneficial effects:

(1) The invention provides a structure in which two kinds of discs are respectively arranged between a pressure gauge and a pipeline to be tested, and the function of assembling and adjusting the pressure gauge and the pipeline at two ends through a first disc and a second disc after the pressure gauge and the pipeline at two ends are tightly screwed and sealed through a connecting disc structure is realized. Before assembly, the included angle between the first disc and the second disc can be adjusted according to the direction of the display surface of the invention, so that the display panel of the pressure gauge reading after tightening and sealing is always kept at a position convenient for observation.

(2) According to the invention, the connecting disc structure and the pressure gauge are connected through the long bolt, the fixing effect on the connecting disc structure and the pressure gauge can be realized, the first disc and the second disc are tightly assembled together, the sealing performance is further enhanced through the rubber ring, the safety problem caused by the fact that the connecting piece is not leaked can be better ensured, meanwhile, due to the flexibility of assembling the connecting piece, the parts can be replaced in a short time in case of leakage instead of directly constructing on a pipeline, the timely leakage stopping effect is achieved, and the maintenance efficiency is improved while the safety is ensured.

Drawings

FIG. 1 is a schematic diagram of a pressure gauge connector according to the present invention;

FIG. 2 is a schematic view of a stabilizer of a pressure gauge connector of the present invention in a cut-away assembly;

FIG. 3 is a schematic diagram of an assembly of a connection pad of a pressure gage connector according to the present invention;

FIG. 4 is a schematic view of a top connector of a pressure gauge connector of the present invention in cross-section;

FIG. 5 is a schematic view of a bottom connector of a pressure gauge connector according to the present invention.

Reference numerals illustrate: 1. stabilizer, 11, first solid fixed ring, 12, second solid fixed ring, 13, connecting claw, 14, connecting hole, 15, lantern ring, 16, socket, 17, solenoid, 18, long bolt, 19, short bolt, 2, top connecting piece, 21, first disc, 22, first mounting hole, 23, sealed circular groove, 24, welting piece, 25, first connecting pipe, 26, first nut, 3, bottom connecting piece, 31, second disc, 32, second mounting hole, 33, draw-in groove, 34, rubber ring, 35, second connecting pipe, 36, second nut, 37, interference piece.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. 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 application belongs.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-5, the present invention provides a pressure gauge connector, comprising: the upper and lower two connection pad structures of equipment, connection pad structure's top is assembled in the bottom of manometer, and connection pad structure's bottom is assembled on the top of being tested pressure pipe, and connection pad structure's outside is equipped with stabilizer 1. The land structure comprises a top connector 2 and a bottom connector 3. The top connecting piece 2 comprises a first disc 21, first mounting holes 22 are uniformly formed in the outer edge of the first disc 21, and a sealing circular groove 23 is formed in the lower surface of the first disc 21.

The bottom connecting piece 3 comprises a second disc 31, and second mounting holes 32 corresponding to the size and the position of the first mounting holes 22 are uniformly formed at the outer edge of the second disc 31. A windward piece 24 is welded at the bottom center of the first disk 21, and an interference piece 37 is welded at the top center of the second disk 31, and the interference piece 37 is tightly attached to the outer surface of the windward piece 24 when in sealing installation.

The number of the first mounting holes 22 and the second mounting holes 32 is set according to a nominal standard size.

The invention provides a structure that two kinds of discs are respectively arranged between a pressure gauge and a pipeline to be tested, and the function of assembling after nuts at two ends are screwed and sealed is realized. Before assembly, the included angle between the first disc 21 and the second disc 31 can be adjusted according to the direction of the display surface of the invention, so that the display panel of the pressure gauge reading after tightening and sealing is always kept at a position convenient for observation.

Further, the top end of the first disc 21 is welded with a first connecting tube 25, the top end of the first connecting tube 25 is welded with a first nut 26, and the first nut 26 and the second nut 36 need to be welded by selecting proper nuts according to different national standards or industry standards. And the first mounting hole 22 and the second mounting hole 32 need to be selected in the proper number according to the gauge caliber of the national standard or industry standard as well. The number of the first mounting holes 22 and the second mounting holes 32 is preferably 24, and the first mounting holes and the second mounting holes 32 are uniformly distributed, so that the dislocation between each upper and lower two first mounting holes 22 and each second mounting hole 32 can be adjusted by 15 degrees when the installation and adjustment positions are carried out, the adjustment range is large, and the adjustment angle is fine.

Further, a second connecting pipe 35 is welded to the lower surface of the second disk 31, and a second nut 36 is welded to the bottom end of the second connecting pipe 35.

In the present embodiment, the stabilizer 1 includes a first fixing ring 11 and a second fixing ring 12. The middle parts of the first fixing ring 11 and the second fixing ring 12 are welded with connecting claws 13, and the centers of the connecting claws 13 are connected through bolts and nuts. The stabilizer 1 is used for realizing stable connection between the connecting disc structure and the outer wall of the measured pipeline, improving the stability of the pressure gauge, and the first fixing ring 11 and the second fixing ring 12 are required to be provided with the lengths according to the diameter of the outer wall of the measured pipeline.

Further, a collar 15 is welded to the top end of the first fixing ring 11, and a rotatable socket 16 is sleeved inside the collar 15. The top end of the sleeve joint piece 16 is welded with a screw pipe 17, a long bolt 18 is screwed in the screw pipe 17, and the long bolt 18 is sleeved on the inner surfaces of the first mounting hole 22 and the second mounting hole 32. The number of the long bolts 18 is two, and the central axis of the long bolts 18 coincides with the vertical extension line of the central axis of the bottom measured pressure pipe.

The stabilizer 1 of the present invention is also suitable for use in a vehicle having a rotation angle that is an integer multiple of 15 ° or a rotation angle within a range of plus or minus 1.05 times. When the pressure gauge is installed at a position with a 90-degree angle, the stabilizer 1 can penetrate through the front or left two positions of the center of the disc structure to install the long bolt 18 and assemble a corresponding fixed ring structure, and the like, so that the pressure gauge is good in installation effect and convenient to install, and the pressure gauge connecting piece are more stable in use.

In installing the fixing rings, it is first necessary to assemble the first fixing ring 11 and the second fixing ring 12 at positions near the pipes, and then select appropriate positions according to the included angles of the pipes to pass through the long bolts 18. After the long bolt 18 is installed, the long bolt 18 can be downwards butted with the screw pipe 17, and after the butt joint is completed, the long screw pipe 17 and the long bolt 18 can be assembled and stabilized by rotating a hexagonal structure welded on the outer surface of the screw pipe 17.

Further, the outer surface of the connection claw 13 is provided with a connection hole 14 for mounting a bolt.

Further, the positions of the first mounting holes 22 and the second mounting holes 32 where the long bolts 18 are not mounted are equipped with the short bolts 19, and the number of the short bolts 19 to be mounted is determined according to the pressure condition. At pressures less than 20 mpa, the manner in which the spacer is installed may be selected.

Further, a clamping groove 33 is formed in the upper surface of the second disc 31, a rubber ring 34 is sleeved on the inner surface of the clamping groove 33, and the top end of the rubber ring 34 is tightly attached to the inner surface of the sealing circular groove 23 during installation. The sealing rings provided by the invention at least comprise three sealing rings, and the sealing rings are stable measures when the sealing effect of the catering element 24 is poor, so that the normal operation of equipment is ensured, and the effect of double sealing and insurance is realized.

Further, the cross section of the bottom end of the rubber ring 34 is square, the cross section of the top end is semicircular, and the bottom end of the rubber ring 34 can be clamped on the inner surface of the clamping groove 33 through deformation.

Further, the top end inner diameter of the interference piece 37 is smaller than the outermost diameter of the windward piece 24, the bottom of the side section of the windward piece 24 is in a convex arc shape, and the top of the side section of the interference piece 37 is in a concave arc shape. The fitting 24 and the interference 37 are preferably made of copper for installation, but in special cases, corrosion-resistant materials are required to be selected according to the characteristics of the materials to be tested in the pipeline, the integral materials of the invention are all copper alloys, and copper oxide or a polytetrafluoroethylene material can be selectively sprayed on the inner surface of the invention according to different corrosion-resistant use conditions.

The relative arrangement of the components set forth in these embodiments does not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure gauge connection, comprising: the top end of the connecting disc structure is assembled at the bottom end of the pressure gauge, the bottom end of the connecting disc structure is assembled at the top end of the pressure pipeline to be tested, and the stabilizer (1) for fixing the pipeline is symmetrically assembled on the outer side of the connecting disc structure;

the connecting disc structure comprises a top connecting piece (2) and a bottom connecting piece (3);

the top connecting piece (2) comprises a first disc (21), and a first mounting hole (22) is formed in the circumferential array at the outer end of the top of the first disc (21);

the bottom connecting piece (3) comprises a second disc (31), a second mounting hole (32) corresponding to the first mounting hole (22) in size and position is formed in the circumferential array at the outer end of the top of the second disc (31), and the first mounting hole (22) and the second mounting hole (32) are assembled through bolts; an catering piece (24) coaxial with the first disc (21) is welded at the bottom center of the first disc (21), an interference piece (37) coaxial with the second disc (31) is welded at the top center of the second disc (31), and the interference piece (37) is sleeved outside the catering piece (24) in a sealing installation mode and is propped against the catering piece (24);

the stabilizer (1) comprises a first fixed ring (11) and a second fixed ring (12), connecting claws (13) are welded at two ends of the first fixed ring (11) and the second fixed ring (12), connecting holes (14) for installing bolts are formed in the connecting claws (13), and the connecting holes (14) are installed in a matched mode through bolts and nuts;

the top welding of first solid fixed ring (11) has lantern ring (15), the inside of lantern ring (15) has cup jointed rotatable socket joint spare (16), the top welding of socket joint spare (16) has screwed pipe (17), the inside spiro union of screwed pipe (17) has long bolt (18), long bolt (18) cup joints the internal surface at first mounting hole (22) and second mounting hole (32).

2. A pressure gauge connector as defined in claim 1, wherein: the top end of the first disc (21) is welded with a first connecting pipe (25), and the top end of the first connecting pipe (25) is welded with a first nut (26).

3. A pressure gauge connector as defined in claim 1, wherein: the lower surface of the second disc (31) is welded with a second connecting pipe (35), and the bottom end of the second connecting pipe (35) is welded with a second nut (36).

4. A pressure gauge connector according to claim 3, wherein: the first mounting hole (22) and the second mounting hole (32) are provided with short bolts (19) at positions where the long bolts (18) are not mounted.

5. A pressure gauge connector as defined in claim 1, wherein: a plurality of sealed circular grooves (23) are formed in the inner end of the bottom of the first disc (21), a plurality of clamping grooves (33) are formed in the inner end of the top of the second disc (31), a rubber ring (34) is arranged in the clamping grooves (33), and the top end of the rubber ring (34) is abutted to the inside of the sealed circular grooves (23) during installation.

6. A pressure gauge connector as defined in claim 5, wherein: the bottom of the section of the rubber ring (34) is square, and the top of the section is semicircular; the bottom end of the rubber ring (34) can be clamped in the clamping groove (33) through deformation.

7. A pressure gauge connector as defined in claim 1, wherein: the top end inner diameter of the interference piece (37) is smaller than the outermost end diameter of the catering piece (24), the bottom of the side section of the catering piece (24) is of a convex arc-shaped structure, and the top of the side section of the interference piece (37) is of a concave arc-shaped structure.