CN215414196U

CN215414196U - Testboard of manometer

Info

Publication number: CN215414196U
Application number: CN202120010970.5U
Authority: CN
Inventors: 韩先振
Original assignee: Ningbo Haobo Electromechanical Technology Co ltd
Current assignee: Ningbo Haobo Electromechanical Technology Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2022-01-04
Anticipated expiration: 2031-01-05

Abstract

The application provides a test board of a pressure gauge, which relates to the technical field of pressure gauges and is used for improving the test working efficiency of the pressure gauge, the technical points are that the device comprises a bracket, a cylinder body and a first piston, wherein the cylinder body is fixedly connected with the bracket, the first piston is connected with the inner wall of the cylinder body in a sealing and sliding way, the test bench of the pressure gauge also comprises a joint to be tested and a standard joint, one end of the joint to be tested is connected with the cylinder body, the other end of the joint to be tested is connected with a pressure gauge to be tested, one end of the standard joint is connected with the cylinder body, the other end of the standard joint is connected with a standard pressure gauge, the same standard pressure gauge is used as a reference object, the testing accuracy is improved, the first variable-volume cavity is used for roughly adjusting the pressure, the working efficiency is improved, and the second variable-volume cavity is used for finely adjusting the pressure, so that the testing accuracy is improved.

Description

Testboard of manometer

Technical Field

The application relates to the technical field of pressure gauges, especially, relate to a testboard of pressure gauge.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, and is generally applied to the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems and the like.

In the debugging and ex-factory quality inspection processes of the pressure gauge, the pressure gauge needs to be tested, the pressure gauge to be tested is usually connected with a closed container, then the hydraulic pressure in the closed container is regulated through an electric control system and a hydraulic system, and then the pointer change of the pressure gauge to be tested is observed, so that the working performance of the pressure gauge is judged.

Although the automation degree of the electric control system and the hydraulic system is high, once the problems of damage or aging and the like occur, workers can hardly find that the reliability of the test result is reduced due to the fact that the device is continuously used for detection.

And the testboard among the prior art is the independent table body usually, is difficult to remove, and the work area of a testboard is little, can only test to a manometer that awaits measuring usually, and work efficiency is low.

SUMMERY OF THE UTILITY MODEL

The application provides a testboard of manometer for solve at least one technical problem in the above-mentioned background art.

In order to achieve the above purpose, the embodiments of the present application propose the following technical solutions:

a pressure gauge test bench comprises a support, a cylinder body and a first piston, wherein the cylinder body is fixedly connected with the support, the first piston is in sealed sliding connection with the inner wall of the cylinder body, the pressure gauge test bench further comprises a to-be-tested connector and a standard connector, one end of the to-be-tested connector is connected with the cylinder body, the other end of the to-be-tested connector is connected with a to-be-tested pressure gauge, one end of the standard connector is connected with the cylinder body, and the other end of the standard connector is connected with a standard pressure gauge; the support includes box and backup pad, the box level sets up, the vertical setting of backup pad, the upper end of backup pad with the edge fixed connection of the lower surface of box, the cylinder body is located the inside of box, the cylinder body with the inboard bottom surface fixed connection of box.

In some embodiments, the box body includes a top plate, a side plate and a bottom plate, the top plate is parallel to the bottom plate, the top plate is horizontally disposed, the side plate is located between the top plate and the bottom plate, the side plate is respectively and fixedly connected with the edges of the top plate and the bottom plate, the cylinder body is fixedly connected with the upper surface of the bottom plate, and the supporting plate is fixedly connected with the edge of the bottom plate.

In some embodiments, a constant volume chamber and a first variable volume chamber are arranged inside the cylinder body, the constant volume chamber is communicated with the first variable volume chamber, the first piston is located inside the first variable volume chamber, the first piston is connected with the inner wall of the first variable volume chamber in a sealing and sliding manner, the volume of the constant volume chamber is greater than that of the first variable volume chamber, the to-be-tested connector is vertically arranged, the lower end of the to-be-tested connector is fixedly connected with the cylinder body, the lower end of the to-be-tested connector is communicated with the constant volume chamber, the standard connector is vertically arranged, the lower end of the standard connector is fixedly connected with the cylinder body, and the lower end of the standard connector is communicated with the constant volume chamber.

In some embodiments, the lower end of the joint to be tested is fixedly connected with a first locating block and a first locking nut, the first locating block is located below the top plate, the upper surface of the first locating block is abutted to the lower surface of the top plate, the first locking nut is in threaded connection with the joint to be tested, the first locking nut is located above the top plate, and the lower surface of the first locking nut is abutted to the upper surface of the top plate.

In some embodiments, a second positioning block and a second locking nut are fixedly connected to the lower end of the standard joint, the second positioning block is located below the top plate, the upper surface of the second positioning block abuts against the lower surface of the top plate, the second locking nut is in threaded connection with the standard joint, the second locking nut is located above the top plate, and the lower surface of the second locking nut abuts against the upper surface of the top plate.

In some embodiments, the constant volume cavity and the first variable volume cavity are cylindrical, the constant volume cavity and the first variable volume cavity are horizontally arranged, the lower end of the to-be-tested connector is connected with one end of the constant volume cavity, the standard connector is connected with the other end of the constant volume cavity, and the first variable volume cavity is located at one end, close to the standard connector, of the constant volume cavity.

In some embodiments, a second variable-volume cavity is further disposed inside the cylinder body, the second variable-volume cavity is located at one end, away from the first variable-volume cavity, of the constant-volume cavity, the second variable-volume cavity is communicated with the constant-volume cavity, a second piston is disposed inside the second variable-volume cavity, the second piston is connected with the inner wall of the second variable-volume cavity in a sealing and sliding manner, the second variable-volume cavity is cylindrical, and the diameter of the first variable-volume cavity is larger than that of the second variable-volume cavity.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a pressure gauge testing device in an embodiment of the present application.

Description of reference numerals:

101. a cylinder body; 102. a first piston; 103. a joint to be tested; 104. a standard joint; 105. a constant volume chamber; 106. a first varactor cavity; 107. a first positioning block; 108. a first lock nut; 109. a second positioning block; 110. a second lock nut; 111. a second varactor cavity; 112. a second piston; 113. a first push-pull rod; 114. A second push-pull rod; 115. a first scale mark; 116. a second scale mark;

201. a pressure gauge to be tested; 202. a standard pressure gauge;

301. a box body; 302. a support plate; 303. a top plate; 304. a side plate; 305. a base plate;

401. a base; 402. a roller; 403. a support plate; 404. a lifting bar; 405. a guide bar; 406. a screw hole; 407. a guide hole; 408. and (4) mounting the groove.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

In the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," "some examples," or "possible implementations" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The following description will be made with reference to fig. 1 for a test device of a pressure gauge.

Example one

The utility model provides a testing arrangement of manometer, including the testboard, test joint and conveyer, the testboard includes the support, cylinder body 101 and first piston 102, cylinder body 101 and support fixed connection, the sealed sliding connection of inner wall of first piston 102 and cylinder body 101, test joint includes joint 103 and standard joint 104 that await measuring, the wherein one end and the cylinder body 101 of joint 103 that await measuring are connected, the other end and the manometer 201 that awaits measuring of joint 103 that awaits measuring are connected, wherein one end and the cylinder body 101 of standard joint 104 are connected, the other end and the standard manometer 202 of standard joint 104 are connected, conveyer's upper surface and support butt, conveyer can follow ground movement.

In some embodiments, the support comprises a box 301 and a support plate 302, the box 301 is horizontally disposed, the support plate 302 is vertically disposed, the upper end of the support plate 302 is fixedly connected with the edge of the lower surface of the box 301, the cylinder 101 is located inside the box 301, and the cylinder 101 is fixedly connected with the inner bottom surface of the box 301.

In some embodiments, the box 301 includes a top plate 303, a side plate 304 and a bottom plate 305, the top plate 303 is parallel to the bottom plate 305, the top plate 303 is horizontally disposed, the side plate 304 is located between the top plate 303 and the bottom plate 305, the side plate 304 is fixedly connected to the edges of the top plate 303 and the bottom plate 305, respectively, the cylinder 101 is fixedly connected to the upper surface of the bottom plate 305, and the supporting plate 302 is fixedly connected to the edge of the bottom plate 305.

In some embodiments, a constant volume chamber 105 and a first variable volume chamber 106 are arranged inside the cylinder body 101, the constant volume chamber 105 is communicated with the first variable volume chamber 106, the first piston 102 is located inside the first variable volume chamber 106, the first piston 102 is connected with the inner wall of the first variable volume chamber 106 in a sealing and sliding manner, the volume of the constant volume chamber 105 is larger than that of the first variable volume chamber 106, the to-be-tested connector 103 is vertically arranged, the lower end of the to-be-tested connector 103 is fixedly connected with the cylinder body 101, the lower end of the to-be-tested connector 103 is communicated with the constant volume chamber 105, the standard connector 104 is vertically arranged, the lower end of the standard connector 104 is fixedly connected with the cylinder body 101, and the lower end of the standard connector 104 is communicated with the constant volume chamber 105.

In some embodiments, a first positioning block 107 and a first lock nut 108 are fixedly connected to a lower end of the joint to be tested 103, the first positioning block 107 is located below the top plate 303, an upper surface of the first positioning block 107 abuts against a lower surface of the top plate 303, the first lock nut 108 is in threaded connection with the joint to be tested 103, the first lock nut 108 is located above the top plate 303, and a lower surface of the first lock nut 108 abuts against an upper surface of the top plate 303.

In some embodiments, a second positioning block 109 and a second locking nut 110 are fixedly connected to a lower end of the standard joint 104, the second positioning block 109 is located below the top plate 303, an upper surface of the second positioning block 109 abuts against a lower surface of the top plate 303, the second locking nut 110 is in threaded connection with the standard joint 104, the second locking nut 110 is located above the top plate 303, and a lower surface of the second locking nut 110 abuts against an upper surface of the top plate 303.

In some embodiments, the constant volume cavity 105 and the first variable volume cavity 106 are cylindrical, the constant volume cavity 105 and the first variable volume cavity 106 are horizontally arranged, the lower end of the to-be-tested connector 103 is connected with one end of the constant volume cavity 105, the standard connector 104 is connected with the other end of the constant volume cavity 105, and the first variable volume cavity 106 is located at one end of the constant volume cavity 105 close to the standard connector 104.

In some embodiments, a second variable volume cavity 111 is further disposed inside the cylinder 101, the second variable volume cavity 111 is located at one end of the constant volume cavity 105 far from the first variable volume cavity 106, the second variable volume cavity 111 is communicated with the constant volume cavity 105, a second piston 112 is disposed inside the second variable volume cavity 111, the second piston 112 is in sealed sliding connection with an inner wall of the second variable volume cavity 111, the second variable volume cavity 111 is cylindrical, and a diameter of the first variable volume cavity 106 is larger than a diameter of the second variable volume cavity 111.

In some embodiments, the transportation device includes a base 401, a roller 402 and a supporting plate 403, the roller 402 is located below the base 401, the roller 402 is rotatably connected to the base 401, the supporting plate 403 is slidably connected to the base 401 in a vertical direction, the base 401 is slidably connected to the supporting plate 302 in a vertical direction, and an upper surface of the supporting plate 403 abuts against a lower surface of the bottom plate 305.

In some embodiments, the transportation device further comprises a lifting rod 404 and a guide rod 405, the lifting rod 404 and the guide rod 405 are vertically arranged, the upper end of the lifting rod 404 is rotatably connected with the lower surface of the supporting plate 403, the lower end of the lifting rod 404 is in threaded connection with the base 401, the upper end of the guide rod 405 is fixedly connected with the supporting plate 403, and the lower end of the guide rod 405 is in sliding connection with the base 401 along the vertical direction.

The manometer testing arrangement that this embodiment provided, roof 303 sets up to the rectangle, the multiunit manometer that awaits measuring is installed simultaneously on the testboard, same concentrated test, efficiency of software testing is improved, adopt same standard manometer 202 as the reference object, improve the test accuracy, the manual piston that promotes slides, because manometer 201 and standard manometer 202 that awaits measuring are connected with constant volume chamber 105 simultaneously, the pressure that receives is the same, even there is the unqualified weeping that leads to of piston leakproofness, also can reach accurate test result equally. Each link of assembly, test, dismantlement is gone on in the region of difference, further improves work efficiency, can carry out the bulk movement to the testboard through conveyer.

Example two

A pressure gauge test bench comprises a support, a cylinder body 101 and a first piston 102, wherein the cylinder body 101 is fixedly connected with the support, the first piston 102 is in sealed sliding connection with the inner wall of the cylinder body 101, the pressure gauge test bench further comprises a to-be-tested connector 103 and a standard connector 104, one end of the to-be-tested connector 103 is connected with the cylinder body 101, the other end of the to-be-tested connector 103 is connected with a to-be-tested pressure gauge 201, one end of the standard connector 104 is connected with the cylinder body 101, and the other end of the standard connector 104 is connected with a standard pressure gauge 202; the support includes box 301 and backup pad 302, and box 301 level sets up, and backup pad 302 is vertical to be set up, and the edge fixed connection of the upper end of backup pad 302 and the lower surface of box 301, cylinder body 101 are located the inside of box 301, and cylinder body 101 and the inboard bottom surface fixed connection of box 301.

The testboard of the manometer that this embodiment provided, roof 303 sets up to the rectangle, the multiunit manometer that awaits measuring is installed simultaneously on the testboard, same concentrated test, efficiency of software testing is improved, adopt same standard manometer 202 as the reference object, improve the test accuracy, the manual piston that promotes slides, because manometer 201 and standard manometer 202 that awaits measuring are connected with constant volume chamber 105 simultaneously, the pressure that receives is the same, even there is the unqualified weeping that leads to of piston leakproofness, also can reach accurate test result equally. The first variable-volume chamber 106 is used for roughly adjusting the pressure to improve the working efficiency, and the second variable-volume chamber 111 is used for finely adjusting the pressure to improve the testing accuracy.

EXAMPLE III

The utility model provides a conveyer of manometer, includes base 401, gyro wheel 402 and layer board 403, and gyro wheel 402 is located the below of base 401, and gyro wheel 402 rotates with base 401 to be connected, and layer board 403 and base 401 are along vertical direction sliding connection, and base 401 and backup pad 302 are along vertical direction sliding connection, and the upper surface of layer board 403 and the lower surface butt of bottom plate 305.

In some embodiments, the transportation device further comprises a lifting rod 404, the lifting rod 404 is vertically arranged, the upper end of the lifting rod 404 is rotatably connected with the lower surface of the supporting plate 403, and the lower end of the lifting rod 404 is in threaded connection with the base 401.

In some embodiments, the upper surface of the base 401 is provided with a vertical screw hole 406, the lifting rod 404 is inserted into the screw hole 406, and the lifting rod 404 is threadedly coupled to the screw hole 406.

In some embodiments, the transportation device further includes a guide rod 405, the guide rod 405 is vertically disposed, an upper end of the guide rod 405 is fixedly connected to the supporting plate 403, and a lower end of the guide rod 405 is slidably connected to the base 401 in a vertical direction.

In some embodiments, the upper surface of the base 401 is provided with a vertical guide hole 407, the guide rod 405 is inserted into the guide hole 407, and the guide rod 405 is slidably connected to the guide hole 407.

In some embodiments, the sides of the base 401 are slidably connected to the inner wall of the support plate 302 in a vertical direction.

In some embodiments, the bottom surface of the base 401 is provided with a mounting groove 408, and is located inside the mounting groove 408, and the bottom surface of the roller 402 is exposed out of the mounting groove 408.

The conveyer of the manometer that this embodiment provided, in the use, it is inboard to push away the conveyer of manometer to backup pad 302, base 401 side and backup pad 302 medial surface sliding connection, rotate the screw rod, drive layer board 403 rises, layer board 403 is with support jack-up, makes the bottom surface and the ground separation of backup pad 302, and gyro wheel 402 supports the conveyer of whole testboard and manometer, then promotes the conveyer of testboard or manometer, transports the testboard.

Example four

The utility model provides a test joint of manometer, includes the joint 103 that awaits measuring, standard joint 104, cylinder body 101 and first piston 102, the sealed sliding connection of the inner wall of first piston 102 and cylinder body 101, wherein one end of the joint 103 that awaits measuring is connected with cylinder body 101, the other end of the joint 103 that awaits measuring is connected with the manometer 201 that awaits measuring, wherein one end of standard joint 104 is connected with cylinder body 101, the other end and the standard manometer 202 of standard joint 104 are connected.

In some embodiments, a second variable volume cavity 111 is further disposed inside the cylinder 101, the second variable volume cavity 111 is located at one end of the constant volume cavity 105 far from the first variable volume cavity 106, the second variable volume cavity 111 is communicated with the constant volume cavity 105, a second piston 112 is disposed inside the second variable volume cavity 111, and the second piston 112 is in sealed sliding connection with an inner wall of the second variable volume cavity 111.

In some embodiments, a first push-pull rod 113 is rotatably connected to an end of the first piston 102 away from the constant volume chamber 105, the first push-pull rod 113 is in threaded connection with the cylinder 101, and a first scale 115 is provided on a surface of the first push-pull rod 113.

In some embodiments, a second push-pull rod 114 is rotatably connected to an end of the second piston 112 away from the constant volume chamber 105, the second push-pull rod 114 is in threaded connection with the cylinder 101, and a second scale mark 116 is provided on a surface of the first push-pull rod 113.

In the test joint provided by the embodiment, the first push-pull rod 113 and the second push-pull rod 114 are convenient for manually pushing and pulling the first piston 102 and the second piston 112, and because the stability of direct push-pull is low, the first push-pull rod 113 and the second push-pull rod 114 are rotated to drive the first piston 102 and the second piston 112 to slide in a threaded connection manner, so that the test accuracy is improved, and the first scale mark 115 and the second scale mark 116 are respectively arranged on the first push-pull rod 113 and the second push-pull rod 114 and can be used for observing the sliding distance of the pistons, so that the quantitative increase and decrease of the pressure are facilitated, and the test accuracy is further improved.

The above examples are only for explaining the present application and are not intended to limit the present application, and those skilled in the art can make modifications to the embodiments of the present application without inventive contribution as needed after reading the present specification, but are protected by patent laws within the scope of the claims of the present application.

Claims

1. The test board of the pressure gauge is characterized by comprising a support, a cylinder body and a first piston, wherein the cylinder body is fixedly connected with the support, the first piston is connected with the inner wall of the cylinder body in a sealing and sliding manner, the test board of the pressure gauge further comprises a to-be-tested connector and a standard connector, one end of the to-be-tested connector is connected with the cylinder body, the other end of the to-be-tested connector is connected with the pressure gauge to be tested, one end of the standard connector is connected with the cylinder body, and the other end of the standard connector is connected with the standard pressure gauge; the support includes box and backup pad, the box level sets up, the vertical setting of backup pad, the upper end of backup pad with the edge fixed connection of the lower surface of box, the cylinder body is located the inside of box, the cylinder body with the inboard bottom surface fixed connection of box.

2. The pressure gauge testing table according to claim 1, wherein the box body comprises a top plate, a side plate and a bottom plate, the top plate is parallel to the bottom plate, the top plate is horizontally arranged, the side plate is located between the top plate and the bottom plate, the side plate is respectively fixedly connected with the edges of the top plate and the bottom plate, the cylinder body is fixedly connected with the upper surface of the bottom plate, and the supporting plate is fixedly connected with the edge of the bottom plate.

3. The pressure gauge testing table according to claim 2, wherein a constant volume chamber and a first variable volume chamber are arranged inside the cylinder body, the constant volume chamber is communicated with the first variable volume chamber, the first piston is located inside the first variable volume chamber, the first piston is in sliding connection with an inner wall of the first variable volume chamber in a sealing manner, the volume of the constant volume chamber is larger than that of the first variable volume chamber, the joint to be tested is vertically arranged, the lower end of the joint to be tested is fixedly connected with the cylinder body, the lower end of the joint to be tested is communicated with the constant volume chamber, the standard joint is vertically arranged, the lower end of the standard joint is fixedly connected with the cylinder body, and the lower end of the standard joint is communicated with the constant volume chamber.

4. The pressure gauge testing table according to claim 3, wherein a first positioning block and a first locking nut are fixedly connected to a lower end of the joint to be tested, the first positioning block is located below the top plate, an upper surface of the first positioning block abuts against a lower surface of the top plate, the first locking nut is in threaded connection with the joint to be tested, the first locking nut is located above the top plate, and a lower surface of the first locking nut abuts against an upper surface of the top plate.

5. The pressure gauge test bench according to claim 4, wherein a second positioning block and a second locking nut are fixedly connected to the lower end of the standard joint, the second positioning block is located below the top plate, the upper surface of the second positioning block abuts against the lower surface of the top plate, the second locking nut is in threaded connection with the standard joint, the second locking nut is located above the top plate, and the lower surface of the second locking nut abuts against the upper surface of the top plate.

6. The pressure gauge testing table according to claim 5, wherein the constant volume chamber and the first variable volume chamber are cylindrical, the constant volume chamber and the first variable volume chamber are horizontally arranged, a lower end of the connector to be tested is connected to one end of the constant volume chamber, the standard connector is connected to the other end of the constant volume chamber, and the first variable volume chamber is located at one end of the constant volume chamber close to the standard connector.

7. A test bench for a pressure gauge according to claim 6, wherein a second variable-volume chamber is further disposed inside the cylinder, the second variable-volume chamber is located at an end of the constant-volume chamber away from the first variable-volume chamber, the second variable-volume chamber is communicated with the constant-volume chamber, a second piston is disposed inside the second variable-volume chamber, the second piston is connected with an inner wall of the second variable-volume chamber in a sealing and sliding manner, the second variable-volume chamber is cylindrical, and a diameter of the first variable-volume chamber is larger than a diameter of the second variable-volume chamber.