CN204389073U - Pressure gauge and its carrying unit - Google Patents

Abstract

The utility model provides a pressure gauge and load-bearing unit thereof, this pressure gauge contain one and define out a shell unit who holds the dress space, and install a pressure cell, a load-bearing unit and a display element in this appearance dress space. The bearing unit is formed by punching and partially bending a metal plate and comprises a hollow substrate part, a supporting part and a bearing part, wherein the supporting part protrudes upwards from the substrate part, and the bearing part is arranged at the upper end of the supporting part. The display unit comprises a dial plate and a pointer, wherein the dial plate is arranged above the bearing part of the bearing unit, and the pointer is driven by the pressure measuring unit to rotate on the dial plate. The utility model discloses a this bear the integrative die-cut and fashioned design of buckling of unit, can have easily to make fashioned efficiency certainly.

Description

Pressure gauge and its carrying unit

technical field

The utility model relates to a pressure gauge, in particular to a pressure gauge and a bearing unit thereof for measuring the pressure to be measured of an object to be measured.

Background technique

Referring to Fig. 1 and Fig. 2, a kind of existing manometer 1 comprises a hollow casing 11, a pressure measuring unit 12 installed in the casing 11, a bearing seat 13 and a display unit 14, and four screws 15 . The housing 11 includes a through hole 111 through the center of the bottom, and two housing screw holes 112 located on two sides of the through hole 111 . The pressure measuring unit 12 is used to sense the pressure of an object to be measured (not shown), and includes a mounting base 121, a pressure measuring module 122 installed on the mounting base 121, and a pressure measuring module 122 connected from the mounting base 121 to The connecting head 123 protrudes from the through hole 111 of the housing 11 . The mounting base 121 has two inner screw holes 124 spaced apart from each other.

The bearing seat 13 includes a hollow annular shoulder portion 131, a lower wall portion 132 extending downward from the outer periphery of the shoulder portion 131, and an upper wall extending upward from the inner periphery of the shoulder portion 131. part 133 , and a hollow bearing part 134 connected to the top edge of the upper wall part 133 . The upper wall portion 133 has a plurality of through holes 135 angularly spaced from each other. The arrangement of the through hole 135 facilitates the insertion of a tool for fine adjustment and calibration of the load cell 12 . The carrying portion 134 has two first locking holes 136 spaced left and right. When assembling, the bottom edge of the lower wall portion 132 will be bent inwards to be supported on the bottom of the mounting base 121, so that the mounting base 121 of the load-measuring unit 12 and the load-measuring module 122 can be positioned on the Inside the bearing seat 13.

The display unit 14 includes a dial 141 mounted above the bearing portion 134 of the bearing base 13 , and a pointer 142 connected to the load cell 12 and driven to rotate above the dial 141 . The dial 141 has two second locking holes 143 respectively communicating with the first locking holes 136 . Two of the screws 15 are respectively screwed into the corresponding first lock hole 136 and the second lock hole 143, so that the dial 141 is connected to the bearing part 134 of the bearing base 13, and the The other two of the screws 15 are respectively screwed into the corresponding shell screw holes 112 and the internal screw holes 124, for locking the bottom of the shell 11 with the mounting seat 121 of the pressure measuring unit 12. connected together.

Although the pressure gauge 1 can be used to measure the pressure of the object to be measured, in addition to gradually stamping a hollow metal cylinder into a stepped tower shape, the bearing seat 13 still needs to go through many times in manufacturing. Punching process is to make described through hole 135, easily destroys the tower shape that has been stamped when punching, and also needs to drill described internal threaded hole 124 on this mount 121 in addition in manufacturing, so this The manufacturing process of the pressure gauge 1 is complicated, and it is not easy to achieve automatic production, so the design still needs to be improved.

Contents of the invention

The purpose of the utility model is to provide a pressure gauge which is easy to manufacture and shape.

The pressure gauge of the utility model comprises: a shell unit, a pressure measuring unit installed in the shell unit and used for sensing the pressure of an object to be measured, a bearing unit installed in the shell unit, and a load cell installed in the shell unit The display unit in the casing unit, the casing unit includes an upper surface and a lower surface opposite to each other, and defines an accommodation space between the upper surface and the lower surface, and the pressure measuring unit includes a A mounting base on the surface, a pressure measuring module installed on the mounting base, and a connection head arranged on the mounting base and communicating the pressure measuring module with the object to be measured, the display unit includes a piece of ground parallel to the upper surface A dial installed above the bearing unit, and a pointer connected to the pressure measuring unit and driven to rotate on the dial; the bearing unit is formed by punching and partially bending a piece of metal plate, and It includes a hollow base plate, a support portion protruding upward from the base plate, and a bearing portion bent and protruding from the upper end of the support portion in a direction parallel to the upper surface.

The pressure gauge of the utility model, the carrying unit also includes a leg portion protruding upward from the base plate portion, and a supporting portion arranged on the upper end of the leg portion and located on the same plane as the load-bearing portion, the base plate portion It has an inner edge, and the support portion and the leg portion protrude upward from the inner edge respectively at intervals.

According to the pressure gauge of the utility model, the pressure measurement module of the pressure measurement unit has an induction actuation component installed on the bearing unit, and the bearing unit also includes at least one limit part arranged on the base plate part, the limit position The part is located above the inductive actuation component and forms a normal actuation distance with the inductive actuation component.

According to the pressure gauge of the present invention, the base plate has an outer edge, and the carrying unit further includes two side arms protruding downward from the outer edge of the base plate and located on two opposite sides of the mounting seat, and Two connecting parts respectively protruding from the lower end of the side arm part into the mounting base and the lower surface of the shell unit, the connecting parts respectively have an inner screw hole, and the pressure gauge also includes a A locking unit, the locking unit includes two locking case screws that are respectively screwed into the inner screw holes of the outer case unit and the connecting portion.

The pressure gauge of the utility model, the bearing unit also includes two side wall parts protruding downward from the outer edge of the base plate part and located between the side arm parts, the bottom edges of the side wall parts face inward Bend to hold the buckle against the bottom of the mount.

The pressure gauge of the utility model, the bearing part of the bearing unit has two first lock holes spaced left and right, and the dial of the display unit has two second lock holes connected to the first lock holes respectively. The lock hole, the locking unit also includes two lock disc screws screwed into the first lock hole and the second lock hole respectively.

The pressure gauge of the utility model, the bearing unit also includes a flange part protruding from the upper end of the support part in a direction away from the bearing part and located on the same plane as the bearing part, the bearing part and the flange part Each has a first lock hole, and the dial of the display unit has two second lock holes spaced back and forth and respectively communicating with the first lock holes.

The pressure gauge of the utility model, the housing unit also includes a hollow shell seat with an opening adjacent to the upper surface, an annular O-ring corresponding to the top of the shell seat, and a cover set on the top of the shell seat. a lens above the O-ring and closing the opening of the housing, and a frame that joins together the periphery of the housing, the O-ring and the lens, the housing, the O-ring and the lens bounding In the accommodation space, the shell seat has a through hole for the connection head of the pressure measuring unit to protrude from.

The purpose of the utility model is to provide a bearing unit of a pressure gauge which is easy to manufacture and shape.

The carrying unit of the pressure gauge of the utility model is formed by punching and partially bending a piece of metal plate, and includes a hollow base plate, a support portion protruding upward from the base plate, and a set On the bearing part at the upper end of the supporting part, the bearing part has two first locking holes spaced apart from each other.

The load-bearing unit of the pressure gauge of the utility model, the load-bearing unit also includes two side arm parts protruding downward from the base plate part, and two connecting parts respectively bent and protruding from the lower ends of the side arm parts. part, and two side surrounding parts respectively protruding downward from the outer edge of the base part and located between the side arm parts, and each of the connecting parts has an inner screw hole.

The beneficial effect of the utility model is that: through the design of integral punching and bending of the bearing unit, it can indeed have the effect of being easy to manufacture and shape.

Description of drawings

Fig. 1 is a partial cross-sectional side view schematic diagram of a conventional pressure gauge;

Fig. 2 is a perspective exploded view of a part of the existing pressure gauge in Fig. 1;

Fig. 3 is a schematic partial cross-sectional side view of a first embodiment of the pressure gauge of the present invention;

Fig. 4 is another partial cross-sectional side view schematic diagram of the first embodiment;

Fig. 5 is a partial perspective exploded view of the first embodiment;

FIG. 6 is a schematic diagram of a manufacturing process of the first embodiment;

Fig. 7 is a schematic partial cross-sectional side view of a second embodiment of the pressure gauge of the present invention;

Fig. 8 is a partial three-dimensional exploded view of a third embodiment of the pressure gauge of the present invention; and

Fig. 9 is a partially exploded perspective view of a fourth embodiment of the pressure gauge of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

For convenience of description, in the following embodiments, similar components are denoted by the same reference numerals.

Referring to FIG. 3 , FIG. 4 and FIG. 5 , the first embodiment of the pressure gauge of the present invention is installed on a test object (not shown) and used to measure the test pressure of the test object. The pressure gauge includes a housing unit 2 , a pressure measuring unit 3 , a carrying unit 4 , a display unit 5 and a locking unit 6 .

The housing unit 2 includes an upper surface 21 and a lower surface 22 opposite to each other at intervals, a hollow housing seat 23 having an opening 231 adjacent to the upper surface 21 , and a ring-shaped housing seat 23 correspondingly resting on the top end of the housing base 23 An O-ring 24, a lens 25 that covers the O-ring 24 and closes the opening 231 of the shell seat 23, and a lens 25 that combines the shell seat 23, the O-ring 24 and the lens 25 on a peripheral edge Border 26 together. The housing base 23 , the O-ring 24 and the lens 25 define a receiving space 27 between the upper surface 21 and the lower surface 22 . The case base 23 in this embodiment has a through hole 232 communicating from the receiving space 27 to the center of the lower surface 22 , and two case base screw holes 233 respectively located on two sides of the through hole 232 . The O-ring 24 is used to prevent water or water vapor from entering the accommodating space 27 , and can also be designed as a layer of waterproof glue, which will not be described here.

The pressure measuring unit 3 is installed in the housing space 27 of the housing unit 2, and includes a mounting base 31 adjacent to the lower surface 22, a pressure measuring module 32 installed above the mounting base 31, and a pressure measuring module 32 arranged on the mounting base 31. The mounting base 31 protrudes from the through hole 232 to communicate with the pressure measuring module 32 and the connection head 33 of the object under test. The pressure measurement module 32 is used to sense the pressure of the object to be measured. It is divided into hydraulic type, elastic type, load type and electric measurement type according to the working principle, and the use is more due to the measurable pressure The range is different such as high pressure, medium pressure, low pressure or micro pressure. In this embodiment, an elastic (diaphragm type) pressure measuring module 32 is used, and a diaphragm-shaped inductive actuating component 321 is provided. Of course, the pressure measurement unit 3 also includes some structures not shown in the figure, but because the structure of the pressure measurement unit 3 and its pressure measurement module 32 is a general prior art, it is not the focus of the present utility model, so it will not be repeated here. illustrate. It should be noted that the pressure gauge of the present utility model is a horizontal pressure gauge, so the connecting head 33 is parallel to the axis of the display unit 5 and protrudes downward from the bottom side of the housing 23. Of course, in the design The pressure gauge of the present utility model can also be a vertical pressure gauge, and the connecting head 33 can be made perpendicular to the axis of the display unit 5. At this time, the connecting head 33 will protrude outwards from the peripheral side of the shell seat 23. , so the design is not limited to this embodiment.

The bearing unit 4 is installed in the accommodation space 27 of the housing unit 2 for the load-measurement module 32 of the load-measurement unit 3 to be mounted, and includes a hollow substrate portion 41 spaced above the mount 31 . The base portion 41 has an inner edge 411 and an outer edge 412 spaced apart from the inner edge 411 . The carrying unit 4 also includes a supporting portion 42 protruding upward from the inner side edge 411 of the base plate portion 41 , and a supporting portion protruding inwardly from the upper end of the supporting portion 42 and parallel to the upper surface 21 . 43. A leg part 45 spaced apart from the supporting part 42 and protruding upward from the inner edge 411 of the base plate part 41, and a leg part 45 protruding inwardly or outwardly from the upper end of the leg part 45 and protruding with the bearing part 43 is located on the same plane as the supporting portion 46, two side arm portions 47 protruding downward from the outer edge 412 of the base plate portion 41 and located on two opposite sides of the mounting base 31, and two side arm portions 47 respectively protruding from the two opposite sides of the mounting seat 31. The lower end of the portion 47 bends and protrudes toward each other and abuts against the connection portion 48 between the bottom of the mounting seat 31 and the lower surface 22. The side surrounding portion 49 between the side arm portions 47 and two limiting portions 40 are respectively recessed from two opposite sides of the inner edge 411 of the base portion 41 and protrude toward each other.

The carrying portion 43 has two first lock holes 431 spaced left and right. Each of the connecting parts 48 has an inner threaded hole 481 . The bottom edge of the side wall portion 49 is bent inward to support and buckle against the bottom of the mounting seat 31 . The limiting part 40 is arranged on the base plate part 41 and spaced above the inductive actuation component 321, and cooperates with the inductive actuation component 321 to form a normal allowable actuation distance 400. The normal allowable actuation described here The distance 400 refers to the maximum deformation distance that allows the inductive actuation component 321 not to be damaged. It is worth mentioning that the carrying portion 43 and the base plate portion 41 are spaced up and down, so that the carrying unit 4 forms a larger and open space between the carrying portion 43 and the base plate portion 41, allowing tools to be inserted into the fine adjustment The pressure measuring unit 3 is indeed easier and more flexible to operate than the arrangement of the through hole 135 of the existing pressure gauge 1 in FIG. 1 .

The display unit 5 is installed in the accommodation space 27 of the housing unit 2, and includes a dial 51 parallel to the upper surface 21 installed above the bearing portion 43 of the bearing unit 4, and a dial 51 connected to the load cell. The unit 3 is driven to rotate the pointer 52 on the dial 51 around the axis. The dial 51 has two second locking holes 511 spaced left and right and respectively communicating with the first locking holes 431 . The pointer 52 can display the measured pressure value of the tested object.

The locking unit 6 includes two locking disc screws 61 that are respectively screwed into the corresponding second locking holes 511 and the first locking holes 431, and two are respectively screwed into the corresponding housing screw holes. 233 and the lock housing screw 62 of the inner screw hole 481. The locking plate screw 61 is used to connect the dial 51 of the display unit 5 to the bearing portion 43 of the bearing unit 4 , and the housing locking screw 62 connects the shell base 23 to the bearing unit 4 . Parts 48 are locked together.

It should be further explained that, in the manufacture of the carrying unit 4, a piece of metal plate 7 is first prepared as shown in Figure 6 (1), and then a punching machine not shown in the figure is used to press the metal plate 7 6 state (2) punching and bending forming, in the forming process, in addition to punching out the outline, and cutting out the substrate portion 41, the support portion 42, the bearing portion 43, the leg portion 45, the In addition to the boundary line between the supporting part 46, the side arm part 47, the connecting part 48 and the side surrounding part 49, the first locking hole 431 and the internal screw hole 481 are punched out, and at the same time And the supporting part 42 , the bearing part 43 , the leg part 45 , the supporting part 46 , the side arm part 47 , the side surrounding part 49 and the limiting part 40 are bent and formed.

When assembling, install the pressure measuring unit 3 in the carrying unit 4, and then bend the bottom edge of the side wall part 49 inwards to support and buckle against the bottom of the mounting seat 31, so that the mounting The seat 31 and the pressure measurement module 32 are positioned in the carrying unit 4, and the connecting parts 48 are respectively bent inwards to extend into the bottom of the mounting seat 31, and then the dial 51 is connected by the locking disc screws 61 On the bearing part 43, then put the above-mentioned assembled unit components into the shell seat 23 together, and then respectively screw the lock shell screws 62 into the corresponding shell seat screw holes 233 and the inner connection. screw hole 481, to lock and combine the shell base 23 with the connecting portion 48 of the bearing unit 4, and finally the O-ring 24 and the lens 25 are arranged on the shell base 23, and combined with the frame 26 together to complete the assembly.

In summary, the design of the pressure gauge of the present utility model mainly uses the metal plate 7 to be integrally punched and bent to form the design of the bearing unit 4, except that the bearing seat of the existing pressure gauge 1 in Figure 1 can be omitted 13 After stamping and forming, it is necessary to go through the process of punching out the through hole 135 several times, and the process of drilling the internal screw hole 124 on the mounting seat 121 can also be omitted, so it is indeed easy to manufacture and form. effect, and it is also more convenient and easy when assembling, so the purpose of this utility model can really be achieved.

It should be further explained that, the utility model also sets the limit portion 40 between the base plate portion 41 and the induction actuation component 321, and makes the distance between the limit portion 40 and the induction actuation component 321 respectively the The normal operating distance is 400. When the pressure of the object to be measured exceeds a safe value, the inductive actuating component 321 of the pressure measuring module 32 will arch up and press against the limiting part 40, so the limiting part 40 can be used to stop The inductive actuation component 321 is to prevent the inductive actuation component 321 from overexpanding and bursting. Therefore, through the design of the limiting part 40, it can limit overpressure from destroying the inductive actuation component 321, so it can have a safe and explosion-proof function. , at the same time can prolong the service life of the pressure gauge.

Referring to Fig. 7, the structure of the second embodiment of the pressure gauge of the present utility model is roughly the same as that of the first embodiment, the difference is that: when the present embodiment needs to set a larger dial 51 due to the demand, the matching part When the size of the shell unit 2 also needs to be correspondingly larger, the connecting parts 48 can be bent outwards from the lower ends of the side arm parts 47 respectively during assembly, and lean against the shell unit 2, and then The housing locking screws 62 are respectively screwed into the corresponding housing base screw holes 233 and the inner screw holes 481 . Therefore, the carrying unit 4 is also applicable to the housing units 2 of different sizes, and has a wide application range.

Referring to Fig. 8, the structure of the third embodiment of the pressure gauge of the present invention is roughly the same as that of the first embodiment, the difference is that the shape of the inner edge 411 of the base plate part 41 of this embodiment is different, and the part of Fig. 5 is omitted. In the first embodiment, the leg portion 45 , the supporting portion 46 and the limiting portion 40 are arranged, so the structure of this embodiment is relatively simple.

Referring to Fig. 9, the structure of the fourth embodiment of the pressure gauge of the present utility model is roughly the same as that of the first embodiment, the difference lies in: the installation direction and the installation distance of the first locking hole 431 and the second locking hole 511 Change, so it is applicable to install the dial 51 of different types. For this reason, the carrying unit 4 of this embodiment further includes a flange portion 44 protruding from the upper end of the supporting portion 42 in a direction away from the carrying portion 43 and located on the same plane as the carrying portion 43 . The supporting portion 43 and the flange portion 44 respectively have a first locking hole 431 spaced from each other back and forth. The second locking holes 511 of the dial 51 are spaced apart from each other and communicate with the first locking holes 431 respectively. Finally, the locking disc screws 61 are respectively screwed into the corresponding second locking holes 511 and the first locking holes 431 to connect the display unit 5 to the carrying unit 4 .

Claims (10)

1. a pressure gauge, comprise: an outer cover unit, one to be installed in this outer cover unit and for the pressure measuring unit of the pressure that senses a determinand, a load bearing unit be installed in this outer cover unit, and a display unit be installed in this outer cover unit, this outer cover unit comprises a relative upper surface of interval and a lower surface, and define one and be positioned at and be installed in space between this upper surface and this lower surface, this pressure measuring unit comprises the mount pad of this lower surface of vicinity, a manometric module be installed on this mount pad, and one is arranged at this mount pad and is communicated with the connector of this manometric module and this determinand, this display unit comprises a slice be arranged on index dial above this load bearing unit with being parallel to this upper surface, and one connects this pressure measuring unit and the pointer being driven and rotating on this index dial, it is characterized in that: this load bearing unit be by piece of metal plate through die-cut and local bending form, and comprise baseplate part, the support portion by the upwards projection of this baseplate part of a hollow, and upper end from this support portion bends the supporting part of projection toward the direction being parallel to this upper surface.

2. pressure gauge as claimed in claim 1, it is characterized in that: this load bearing unit also comprises a foot section by the upwards projection of this baseplate part, and one is located at the upper end of this foot section and is positioned at conplane holding part with this supporting part, this baseplate part has a medial margin, and this support portion and this foot section are at intervals respectively by the up projection of this medial margin.

3. pressure gauge as claimed in claim 1 or 2, it is characterized in that: the manometric module of this pressure measuring unit has the induction actuation module that is installed on this load bearing unit, this load bearing unit also comprises at least one and is located at limiting section on this baseplate part, this limiting section is positioned at above this induction actuation module, and and forms a normal start distance between this induction actuation module.

4. pressure gauge as claimed in claim 1 or 2, it is characterized in that: this baseplate part has a lateral border, this load bearing unit also comprises two respectively by the lateral border down projection and be positioned at the side arm portion of two opposition sides of this mount pad of this baseplate part, and two bend the connecting portion between the lower surface protruding into this mount pad and this outer cover unit by the lower end in described side arm portion respectively, described connecting portion has respectively in one and connects screw, and this pressure gauge also comprises an interlocking unit, this interlocking unit comprises the lock housing screw connecing screw in two be spirally connected respectively this outer cover unit and described connecting portions.

5. pressure gauge as claimed in claim 4, it is characterized in that: this load bearing unit also comprises two respectively by lateral border down projection and the side round part be positioned between described side arm portion of this baseplate part, and the root edge of described side round part bends inwards and is butted on the bottom of this mount pad with holding button.

6. pressure gauge as claimed in claim 4, it is characterized in that: this supporting part of this load bearing unit have two between left and right every the first lockhole, this index dial of this display unit have two between left and right every and be communicated with the second lockhole of described first lockhole respectively, this interlocking unit also comprises the lock collar screw that two are screwed into described first lockhole and described second lockhole respectively.

7. pressure gauge as claimed in claim 4, it is characterized in that: this load bearing unit also comprise one from this support portion upper end toward away from this supporting part direction projection and be positioned at conplane flange part with this supporting part, this supporting part and this flange part have first lockhole respectively, and this index dial of this display unit has two time intervals and is communicated with the second lockhole of described first lockhole respectively.

8. pressure gauge as claimed in claim 1, it is characterized in that: this outer cover unit also comprise a hollow and have the shell block of the opening of this upper surface of vicinity, one ringwise and correspondence rests on the O shape ring on the top of this shell block, a slice lid is located at above this O shape ring and close the eyeglass of the opening of this shell block, and a frame that the periphery of this shell block, this O shape ring and this eyeglass is combined, this shell block, this O shape ring and this eyeglass boundary go out this and are installed in space, the perforation that the connector that this shell block has this pressure measuring unit of confession stretches out.

9. a manometric load bearing unit, it is characterized in that: this load bearing unit be by piece of metal plate through die-cut and local bending form, and comprise baseplate part, the support portion by the upwards projection of this baseplate part of a hollow, and a supporting part being located at the upper end of this support portion, this supporting part has two the first lockholes be spaced.

10. manometric load bearing unit as claimed in claim 9, it is characterized in that: this load bearing unit also comprises two respectively by this baseplate part down side arm portion of projection, two connecting portions being bent projection respectively by the lower end in described side arm portion in opposite directions, and two respectively by lateral border down projection and the side round part be positioned between described side arm portion of this baseplate part, described connecting portion has respectively in one and connects screw.