CN217084058U

CN217084058U - Pressure gauge shell

Info

Publication number: CN217084058U
Application number: CN202220959416.6U
Authority: CN
Inventors: 康文英
Original assignee: Yuyao Henghui Instrument Co ltd
Current assignee: Yuyao Henghui Instrument Co ltd
Priority date: 2022-04-23
Filing date: 2022-04-23
Publication date: 2022-07-29
Anticipated expiration: 2032-04-23

Abstract

The application relates to a pressure gauge shell, which belongs to the technical field of measuring tools and comprises a shell body and a pressure joint used for being connected with an external pipeline, wherein the pressure joint comprises a connecting plate and a joint part fixedly connected with the connecting plate; the shell body is provided with a fixing assembly, and the fixing assembly comprises an abutting part abutted against the inner side wall of the shell body, a fixing screw rod arranged on the abutting part, and a fixing nut which is in threaded connection with the fixing screw rod and used for pressing the connecting plate on the shell body. This application has the effect that the convenience is changed and is cleared up pressure joint.

Description

Pressure gauge shell

Technical Field

The application relates to the technical field of measuring tool, especially, relate to a manometer watchcase.

Background

At present, a pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the environmental pressure, and the elastic sensitive element of the pressure gauge has the characteristics of high mechanical strength, convenience in production and the like, so that the mechanical pressure gauge is more and more widely applied.

The manometer includes the manometer watchcase, sets up dial plate and testing device in the watchcase, and welded fastening has the pressure joint that is used for being connected with external pipeline on the lateral wall of manometer watchcase, and pressure joint has seted up the connecting hole inside. When the pressure gauge works, liquid or gas in an external pipeline enters the pressure gauge through the connecting hole, and then pressure measurement is carried out through the testing device.

In view of the above-mentioned related technologies, the inventor believes that after the pressure gauge works for a long time, especially after the pressure gauge measures the pressure of the liquid with certain viscosity, the pressure connector needs to be cleaned or replaced in time, and in the above-mentioned timely scheme, the pressure connector is not convenient to clean or replace.

SUMMERY OF THE UTILITY MODEL

For the convenience change and clearance pressure joint, this application provides a pressure gauge watchcase.

The application provides a pressure gauge watchcase adopts following technical scheme:

a pressure gauge shell comprises a shell body and a pressure joint used for being connected with an external pipeline, wherein the pressure joint comprises a connecting plate and a joint part fixedly connected with the connecting plate;

the shell body is provided with a fixing assembly, and the fixing assembly comprises an abutting part abutted against the inner side wall of the shell body, a fixing screw rod arranged on the abutting part, and a fixing nut which is in threaded connection with the fixing screw rod and used for pressing the connecting plate on the shell body.

By adopting the technical scheme, when the pressure joint needs to be cleaned or replaced, the fixing nut is taken down from the fixing screw rod, then the connecting plate is taken out, and the pressure joint is taken down; and a new pressure joint or a pressure joint after cleaning is tightly pressed on the shell body through a fixing nut, so that detachable connection between the pressure joint and the shell body is realized, and the pressure joint is convenient to install and replace.

Optionally, a fixing groove for embedding the connecting plate is formed in the outer side wall of the shell body.

Through adopting above-mentioned technical scheme, through with the connecting plate embedding fixed slot in, make pressure joint more stable in the position on casing body.

Optionally, the fixing assembly further comprises a positioning column arranged on the abutting part and penetrating through the shell body, and the connecting plate is provided with a positioning groove for embedding the positioning column.

Through adopting above-mentioned technical scheme, carry on spacingly through the reference column to the connecting plate, make the connecting plate be difficult for removing on casing body, make the position of connecting plate more stable.

Optionally, the fixing screw is sleeved with a first sealing ring, one end face of the first sealing ring abuts against the abutting part, and the other end face of the first sealing ring abuts against the inner side wall of the shell body.

Through adopting above-mentioned technical scheme, because clamping screw is when fixing the connecting plate, clamping screw wears to locate the casing body, through set up first sealing ring between butt piece and casing body inner wall, has maintained the inside gas tightness of manometer, and when carrying out the pressure measurement to gas, the difficult emergence of gas in the manometer is revealed to make the pressure test result more accurate.

Optionally, a transmission hole for communicating with an external pipeline is formed in the joint portion, a connection hole communicated with the transmission hole is formed in the connection plate, a communication port communicated with the connection hole is formed in the side wall in the shell, and a sealing sheet abutted to the connection plate is arranged in the fixing groove of the shell body.

By adopting the technical scheme, when the pressure gauge works, gas sequentially passes through the transmission hole, the connecting hole and the communicating port, and the sealing sheets are arranged on the connecting plate and the shell body, so that liquid or gas flowing out of the connecting hole is not easy to flow to other positions in the pressure gauge through the communicating port, and the test gas or liquid is not easy to leak; meanwhile, when the test gas is toxic gas and the latter is harmful to the environment, the sealing sheet is arranged, so that the safety of the pressure gauge in use is improved.

Optionally, a placing groove for placing the sealing sheet is formed in the groove bottom of the fixing groove.

Through adopting above-mentioned technical scheme, carry on spacingly through the standing groove to the gasket, make the gasket position on the casing body more stable.

Optionally, the casing body is provided with a pressure relief hole, and the casing body is provided with a sealing plug for blocking the pressure relief hole.

Through adopting above-mentioned technical scheme, when getting into the inside test gas pressure of manometer too high, the manometer has the risk of explosion or harm manometer internal test device, and the sealing plug is broken away to gas this moment, in time releases the pressure to the manometer, has improved the security when manometer uses.

Optionally, be provided with the pressure release pipe on the casing body, the pressure release hole is seted up on the pressure release pipe, the sealing plug include the installation department and set up in sealing on the installation department, the sealing embedding in the pressure release pipe, the installation department with the pressure release pipe joint is fixed.

By adopting the technical scheme, the sealing plug is conveniently installed in a clamping and fixing mode, and when the pressure of the test gas is too large, the test gas can easily break the sealing plug so as to timely release the pressure.

Optionally, the housing body is provided with a connecting bolt for connecting with other devices.

Through adopting above-mentioned technical scheme, through connecting bolt, conveniently with manometer fixed mounting on other equipment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixing assembly is adopted to realize detachable connection between the shell body and the pressure joint, so that the pressure joint can be cleaned or replaced in time conveniently;

2. by arranging the first sealing ring and the sealing sheet, the air tightness between the pressure joint and the shell body is good, so that the test result is more accurate;

3. through setting up sealing plug and pressure release pipe, in time release the pressure to the manometer, the security when having improved the manometer and using.

Drawings

Fig. 1 is a schematic view showing the entire structure of a pressure gauge case according to an embodiment of the present invention.

Fig. 2 is an exploded view of a securing assembly and pressure fitting according to an embodiment of the present application.

Fig. 3 is an exploded view of the pressure fitting, sealing sheet, and housing body of an embodiment of the present application.

Fig. 4 is an exploded view of the pressure relief tube and sealing plug of the embodiment of the present application.

Fig. 5 is a schematic structural view of a pressure gauge case and a fixing plate according to an embodiment of the present application.

Description of reference numerals: 1. a housing body; 11. fixing grooves; 12. a communication port; 13. sealing the sheet; 14. a placement groove; 15. a connecting bolt; 151. connecting a screw rod; 152. a connecting nut; 16. a pressure relief pipe; 161. a pressure relief vent; 162. a clamping groove; 17. a sealing plug; 171. a sealing part; 172. an installation part; 173. a abdication gap; 174. a clamping block; 2. a pressure joint; 3. a connecting plate; 31. positioning a groove; 32. connecting holes; 4. a fixing assembly; 41. an abutting member; 42. fixing the screw rod; 43. fixing a nut; 44. a positioning column; 45. a first seal ring; 46. a second seal ring; 5. a joint portion; 51. connecting columns; 52. a threaded post; 521. an external thread; 53. a transfer aperture; 6. a fixing plate; 61. a fixing hole; 62. and a limiting hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses manometer watchcase.

Referring to fig. 1, the pressure gauge shell includes a shell body 1 and a pressure joint 2, the pressure joint 2 includes a joint part 5 for connecting with an external pipeline and a connecting plate 3 fixedly connected with the joint part 5, and a fixing component 4 for fixing the connecting plate 3 on the shell body 1 is arranged on the shell body 1. In this embodiment, the fixing member 4 is disposed on the bottom side wall of the housing body 1.

Referring to fig. 1 and 2, the fixing assembly 4 includes an abutting member 41 abutting against an inner side wall of the housing body 1, a fixing screw 42 and a fixing nut 43, the abutting member 41 is plate-shaped, the fixing screw 42 is vertically welded and fixed on the abutting member 41, the fixing screw 42 is inserted into the housing body 1 and the connecting plate 3, one end of the fixing screw 42 away from the abutting member 41 protrudes out of one end of the connecting plate 3 away from the abutting member 41, and the fixing nut 43 is in threaded connection with the fixing screw 42 and abuts against one end of the connecting plate 3 away from the abutting member 41.

Referring to fig. 1 and 2, when the pressure connector 2 is replaced, the fixing nut 43 is removed from the fixing screw rod 42, the connecting plate 3 is removed from the fixing screw rod 42, and the replaced pressure connector 2 is fixedly mounted on the housing body 1 through the connecting plate 3, so that the pressure connector 2 is convenient to mount and replace.

Referring to fig. 1 and 2, the fixing assembly 4 further includes a positioning column 44 vertically welded and fixed on the abutting part 41, the positioning column 44 penetrates through the housing body 1, and the connecting plate 3 is provided with a positioning groove 31 for embedding the end of the positioning column 44, in this embodiment, the two positioning columns 44 are provided, and the connecting plate 3 is positioned and supported by the positioning column 44, so that the connecting plate 3 is more stably connected with the housing body 1.

Referring to fig. 1 and 2, in order to improve the air tightness inside the pressure gauge, a first sealing ring 45 is sleeved on the fixing screw 42, one end surface of the first sealing ring 45 abuts against the abutting member 41, and the other end surface of the first sealing ring 45 abuts against the inner side wall of the casing body 1. Meanwhile, the positioning column 44 is sleeved with a second sealing ring 46, one end surface of the second sealing ring 46 is abutted with the abutting part 41, and the other end surface is abutted with the inner side wall of the housing body 1. In this embodiment, the first sealing ring 45 and the second sealing ring 46 are both fixedly connected to the abutting member 41 by glue.

Referring to fig. 3, a fixing groove 11 for the connection plate 3 to be embedded is formed on the outer side wall of the housing body 1, so as to further limit the position of the connection plate 3 on the housing.

Referring to fig. 2 and 3, the joint part 5 includes a threaded column 52 and a connecting column 51 welded and fixed to one end of the threaded column 52, a transmission hole 53 is jointly formed in the connecting column 51 and the threaded column 52, one end of the transmission hole 53 is communicated with an end face of the threaded column 52, and the other end of the transmission hole 53 is communicated with an end face of the connecting column 51 far away from the threaded column 52. The connecting plate 3 is welded and fixed with the connecting column 51, a connecting hole 32 communicated with the transmission hole 53 is formed in the connecting plate 3, and a communication port 12 communicated with the connecting hole 32 is formed in the shell body 1. The connecting hole 32 and the communication port 12 are both rectangular in cross section along the axial direction of the threaded column 52, and an external thread 521 for connecting with an external pipeline is provided on the circumferential outer side wall of the threaded column 52.

Referring to fig. 2 and 3, when the pressure gauge works, an external pipeline is connected to the pressure connector 2 through the threaded column 52 in a threaded manner, gas or liquid in the external pipeline sequentially passes through the transmission hole 53, the connecting hole 32 and the communication port 12 to enter the pressure gauge, and then pressure testing is performed through a testing device in the pressure gauge.

Referring to fig. 2 and 3, in order to provide good sealing between the connecting plate 3 and the outer sidewall of the casing body 1 when the connecting plate 3 is connected to the casing body 1, a sealing sheet 13 abutting against the connecting plate 3 is disposed in the fixing groove 11 of the casing body 1. In this embodiment, since the connection hole 32 and the communication port 12 are both rectangular, the sealing sheet 13 is rectangular and is disposed in a ring shape, and the sealing sheet 13 is located on the circumferential outer side of the communication port 12.

Referring to fig. 3, a placing groove 14 communicated with the communication opening 12 is opened at the bottom of the fixing groove 11, and the sealing sheet 13 is located in the placing groove 14 to fix the sealing sheet 13, in this embodiment, the sealing sheet 13 is fixedly connected with the bottom of the placing groove 14 by glue. Further, the sealing sheet 13 protrudes from the opening of the placing groove 14, so that the connecting plate 3 can better press the sealing sheet 13 in the placing groove 14.

Referring to fig. 3 and 4, welded fastening has pressure release pipe 16 on the lateral wall of casing body 1, the one end that casing body 1 was kept away from to pressure release pipe 16 has pressure release hole 161, be provided with the sealing plug 17 that is used for blockking up pressure release hole 161 on casing body 1, sealing plug 17 is including being used for imbedding sealing portion 171 and installation department 172 in the pressure release pipe 16, installation department 172 is the column, and set up the mounting groove that supplies sealing portion 171 to place on the installation department 172, sealing portion 171 passes through glue to be fixed in the mounting groove, and have the clearance 173 of stepping down that supplies the embedding of pressure release pipe 16 between the cell wall of sealing portion 171 and mounting groove. Welded fastening has joint piece 174 on the cell wall of mounting groove, offers the joint groove 162 that supplies joint piece 174 embedding on the circumference lateral wall of pressure release pipe 16, and installation department 172 is fixed with the pressure release pipe 16 joint.

When the pressure of the test gas entering the pressure gauge is too large, so that the pressure gauge has the risk of explosion, the gas rushes the sealing plug 17 to release the pressure of the pressure gauge.

Referring to fig. 5, the housing body 1 is provided with a connection bolt 15, and the connection bolt 15 includes a connection screw 151 welded and fixed to the outer side wall of the housing body 1 perpendicularly and a connection nut 152 screwed with the connection screw 151. Connecting bolt 15 is used for fixing the manometer on other equipment, for example, set up the fixed plate 6 corresponding with the manometer on other equipment, set up the fixed orifices 61 that supplies connecting screw 151 to wear to establish and supply the spacing hole 62 that spliced pole 51 wore to establish on the fixed plate 6, wear to locate in the fixed orifices 61 when connecting screw 151, spliced pole 51 wears to locate in spacing hole 62 back, compress tightly fixed plate 6 on casing body 1 through coupling nut 152, thereby with manometer fixed mounting on other equipment, in this embodiment, connecting bolt 15 is provided with two.

The implementation principle of this application embodiment's manometer watchcase does: when the pressure connector 2 is installed, the abutting piece 41 is firstly placed in the shell body 1, the fixing screw 42 and the positioning column 44 are arranged on the side wall of the shell body 1 in a penetrating manner, the connecting plate 3 is then placed in the fixing groove 11, the fixing screw 42 is arranged in the connecting plate 3 in a penetrating manner, the positioning column 44 is embedded in the positioning groove 31, and the connecting plate 3 is tightly pressed in the fixing groove 11 through the fixing nut 43; when the pressure connector 2 is replaced, the fixing nut 43 is removed, the connecting plate 3 is further removed from the fixing screw rod 42, and finally the replaced pressure connector 2 is pressed in the fixing groove 11 by the fixing nut 43.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pressure gauge case, comprising: the pressure joint comprises a shell body (1) and a pressure joint (2) connected with an external pipeline, wherein the pressure joint (2) comprises a connecting plate (3) and a joint part (5) fixedly connected with the connecting plate (3);

the shell body (1) is provided with a fixing component (4), the fixing component (4) comprises an abutting part (41) abutting against the inner side wall of the shell body (1), a fixing screw rod (42) arranged on the abutting part (41) and a fixing nut (43) which is in threaded connection with the fixing screw rod (42) and used for pressing the connecting plate (3) on the shell body (1).

2. A pressure gauge case according to claim 1, wherein: the outer side wall of the shell body (1) is provided with a fixing groove (11) for the connection plate (3) to be embedded into.

3. A pressure gauge case according to claim 1, wherein: the fixing component (4) further comprises a positioning column (44) which is arranged on the abutting part (41) and penetrates through the shell body (1), and a positioning groove (31) for embedding the positioning column (44) is formed in the connecting plate (3).

4. A pressure gauge case according to claim 1, wherein: the fixing screw rod (42) is sleeved with a first sealing ring (45), one end face of the first sealing ring (45) is abutted to the abutting piece (41), and the other end face of the first sealing ring is abutted to the inner side wall of the shell body (1).

5. A pressure gauge case according to claim 2, wherein: the joint part (5) is provided with a transmission hole (53) communicated with an external pipeline, the connecting plate (3) is provided with a connecting hole (32) communicated with the transmission hole (53), the side wall of the shell body (1) is provided with a communicating port (12) communicated with the connecting hole (32), and the shell body (1) is provided with a sealing sheet (13) abutted against the connecting plate (3) in the fixing groove (11).

6. A pressure gauge case according to claim 5, wherein: and a placing groove (14) for placing the sealing sheet (13) is formed in the bottom of the fixing groove (11).

7. A pressure gauge case according to claim 1, wherein: the pressure relief hole (161) is formed in the shell body (1), and a sealing plug (17) used for blocking the pressure relief hole (161) is arranged on the shell body (1).

8. A pressure gauge case according to claim 7, wherein: be provided with pressure release pipe (16) on casing body (1), pressure release hole (161) are seted up on pressure release pipe (16), sealing plug (17) including installation department (172) and set up in sealing member (171) on installation department (172), sealing member (171) embedding in pressure release pipe (16), installation department (172) with pressure release pipe (16) joint is fixed.

9. A pressure gauge case according to claim 1, wherein: the shell body (1) is provided with a connecting bolt (15) for being connected with other equipment.