A tool for pressure transmitter pressurization test

Abstract

The present invention relates to a tool for pressure testing of a pressure transmitter, comprising a base plate, a pressure rod assembly, a support assembly and a limit assembly. During actual use, the pressure rod assembly and the support assembly are assembled in advance. When the pressure transmitter needs to be pressure tested, the user aligns the bottom of the pressure transmitter with the top of the pressure rod assembly, vertically inserts it into the pressure rod assembly until it contacts the support assembly, then moves the limit assembly to the top of the pressure transmitter and connects it to the support assembly, then connects the pressure source to the main pressure hole, allows the pressure source to flow to each branch pressure hole and is introduced into the pressure transmitter through the pressure rod assembly for pressure testing, thereby eliminating the need for threaded fastening and sealing, is simple to operate, has low labor intensity, can be quickly loaded and unloaded, and is adaptable to a large pressure range, and can be better used for automatic testing of production lines.

Description

Technical Field

[0001] The invention relates to the technical field of pressure transmitter testing, and in particular to a tooling for pressure transmitter pressurization testing. Background Art

[0002] A pressure transmitter is a device that converts pressure into pneumatic or electric signals for control and remote transmission. It can convert physical pressure parameters such as gas and liquid sensed by the pressure measuring element sensor into standard electrical signals to supply secondary instruments such as indicator alarms, recorders, regulators, etc. for measurement, indication and process regulation.

[0003] At present, when pressure transmitters are subjected to pressure tests, they are mostly sealed by threaded fastening, which is cumbersome and labor-intensive to operate, and cannot be used for automatic testing in production lines, resulting in low efficiency and high dependence on personnel.

[0004] In order to improve the efficiency of pressure transmitter pressurization testing, reduce labor intensity and dependence on personnel, there is an urgent need for a tooling that does not require threaded fastening and sealing, is simple to operate, has low labor intensity, can be quickly loaded and unloaded, and can adapt to a large pressure range, and can perform better pressurization testing for automatic testing of production lines. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In order to solve the above problems in the prior art, the present invention provides a tooling for pressure transmitter pressurization testing, which does not require threaded fastening and sealing, is simple to operate, has low labor intensity, can be quickly loaded and unloaded, and can adapt to a wide pressure range, and can be better used for automatic testing of production lines.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0009] A tooling for pressure transmitter pressurization test, comprising a base plate, a pressurization rod assembly, a support assembly and a limit assembly;

[0010] A main pressurizing hole and a plurality of branch pressurizing holes are provided on the bottom plate, the main pressurizing hole and the plurality of branch pressurizing holes are interconnected, one end of a pressurizing rod assembly is connected to a branch pressurizing hole, the support assembly is installed on the bottom plate, and the limit assembly is provided above the pressurizing rod assembly and connected to the support assembly.

[0011] Furthermore, the pressurizing rod assembly includes a pressurizing seat and at least one extension piece, one end of the pressurizing seat is connected to the branch pressurizing hole, the other end of the pressurizing seat is passed through the interior of one end of the extension piece, and the other end of the extension piece is provided with a first sealing ring.

[0012] Furthermore, one end of the pressurizing seat is connected to the branch pressurizing hole through a second sealing ring, and the other end of the pressurizing seat is sleeved with a third sealing ring and connected to the interior of one end of the extension piece through the third sealing ring.

[0013] Furthermore, the support assembly includes side uprights and height support uprights, and the pressure rod assembly is provided with a side upright on both sides respectively. The side uprights are detachably connected to the bottom plate, and the height support uprights are detachably connected to the bottom plate via a mounting plate.

[0014] Furthermore, it also includes an anti-slip piece, one end of which is rotatably connected to the side stand via a locking piece.

[0015] Furthermore, it also includes a lifting handle, and the two sides of the base plate are respectively detachably connected with a lifting handle.

[0016] Furthermore, it also includes a guide wheel, and the four sides of the base plate are rotatably connected with a guide wheel.

[0017] Furthermore, it also includes an air inlet nozzle, which is connected to the main pressurizing hole.

[0018] (III) Beneficial effects

[0019] The beneficial effect of the present invention is that during actual use, the pressure rod assembly and the support assembly are assembled in advance. When the pressure transmitter needs to be pressurized, the user aligns the bottom of the pressure transmitter with the top of the pressure rod assembly, and vertically inserts it into the pressure rod assembly until it contacts the support assembly. The limit assembly is then moved to the top of the pressure transmitter and connected to the support assembly. The pressure source is then connected to the main pressure hole, so that the pressure source flows to each branch pressure hole and is introduced into the pressure transmitter through the pressure rod assembly for pressure testing. This eliminates the need for threaded fastening and sealing, is simple to operate, has low labor intensity, can be quickly loaded and unloaded, and can adapt to a large pressure range, and can be better used for automatic testing of production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the assembly of a tool for pressurization testing of a pressure transmitter according to an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of an explosion structure for pressurization testing of a pressure transmitter according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a bottom plate in a tooling for pressurization testing of a pressure transmitter according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic structural diagram of a pressurizing rod assembly in a tooling for pressurizing testing of a pressure transmitter according to an embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of a medium-height support pole in a tooling for pressure transmitter pressurization testing according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of a limit rod in a tooling for pressurization testing of a pressure transmitter according to an embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the side stand plate in the tooling for pressure transmitter pressurization test according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of a pressure plate in a tooling for pressurization testing of a pressure transmitter according to an embodiment of the present invention;

[0028] Fig. 9 It is a cross-sectional view of the overall structure of a pressure transmitter for pressurization testing according to an embodiment of the present invention;

[0029] [Description of Reference Numerals]

[0030] 10-base plate, 11-main pressure hole, 12-branch pressure hole, 13-guide wheel, 14-port plug, 15-lifting handle, 20-pressure rod assembly, 21-pressure seat, 22-third sealing ring, 23-extension piece, 24-first sealing ring, 30-support assembly, 31-side plate, 32-height support pole, 33-mounting plate, 34-limiting hole, 40-limiting assembly, 41-limiting rod, 42-connecting block, 43-pressure plate, 50-anti-slip part, 60-pressure transmitter. DETAILED DESCRIPTION

[0031] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0032] Please refer to Figure 1 to Fig. 9 As shown, a tool for pressure transmitter pressurization test of the present invention includes a base plate 10, a pressurization rod assembly 20, a support assembly 30 and a limit assembly 40;

[0033] A main pressurizing hole 11 and a plurality of branch pressurizing holes 12 are provided on the base plate 10, and the main pressurizing hole 11 and the plurality of branch pressurizing holes 12 are interconnected. One end of a pressurizing rod assembly 20 is connected to a branch pressurizing hole 12, and the support assembly 30 is installed on the base plate 10, and the limit assembly 40 is provided above the pressurizing rod assembly 20 and connected to the support assembly 30.

[0034] The working principle of the present invention is as follows: during actual use, the pressure rod assembly 20 and the support assembly 30 are assembled in advance. When the pressure transmitter 60 needs to be pressurized, the user aligns the bottom of the pressure transmitter 60 with the top of the pressure rod assembly 20, and vertically inserts it into the pressure rod assembly 20 until it contacts the support assembly 30. Then, the limit assembly 40 is moved to the top of the pressure transmitter 60 and connected to the support assembly 30. Then, the pressure source is connected to the main pressure hole 11, so that the pressure source flows to each branch pressure hole 12 and is introduced into the pressure transmitter 60 through the pressure rod assembly 20 for pressure testing.

[0035] Furthermore, the pressurizing rod assembly 20 includes a pressurizing seat 21 and at least one extension piece 23, one end of the pressurizing seat 21 is connected to the branch pressurizing hole 12, the other end of the pressurizing seat 21 is passed through the interior of one end of the extension piece 23, and the other end of the extension piece 23 is provided with a first sealing ring 24.

[0036] From the above description, it can be seen that it is beneficial to adjust the overall height of the pressure rod assembly 20 by changing the number of extension pieces 23, which is beneficial to adapting to pressure transmitters 60 of more specifications. The other end of the pressure seat 21 can be inserted into the interior of one end of the extension piece 23, and connected to the pressure transmitter 60 through the other end of the extension piece 23, and sealed by the first sealing ring 24. One end of the extension piece 23 is provided with an inner hole, and the other end of the extension piece 23 is provided with an insertion rod adapted to the inner hole.

[0037] Furthermore, one end of the pressurizing seat 21 is connected to the branch pressurizing hole 12 via a second sealing ring, and the other end of the pressurizing seat 21 is sleeved with a third sealing ring 22 and connected to the interior of one end of the extension piece 23 via the third sealing ring 22 .

[0038] It can be seen from the above description that the second sealing ring and the third sealing ring 22 are helpful to improve the sealing performance of the pressure rod assembly 20 .

[0039] Furthermore, the support assembly 30 includes a side plate 31 and a height support pole 32. A side plate 31 is provided on both sides of the pressure rod assembly 20. The side plate 31 is detachably connected to the base plate 10, and the height support pole 32 is detachably connected to the base plate 10 through a mounting plate 33.

[0040] From the above description, it can be seen that it is beneficial to support the pressure transmitter 60 during installation through the height support pole 32, support the side of the pressure transmitter 60 through the side plate 31, and limit the installation direction of the pressure transmitter 60 through the protrusion on the side plate 31.

[0041] Furthermore, it also includes an anti-slipping piece 50 , one end of which is rotatably connected to the side vertical plate 31 through a locking piece, and the other end of the anti-slipping piece 50 is pressed on the connecting block 42 .

[0042] It can be seen from the above description that this is helpful to prevent the connection block 42 from driving the limiting rod 41 out of the limiting hole 34 .

[0043] Furthermore, it also includes a lifting handle 15, and the two sides of the base plate 10 are respectively detachably connected with a lifting handle 15.

[0044] It can be seen from the above description that it is conducive to better carrying the entire device.

[0045] Furthermore, it also includes a guide wheel 13, and the four sides of the base plate 10 are rotatably connected with a guide wheel 13.

[0046] From the above description, it can be seen that when the overall device moves through the conveyor belt during the automation process, the guide wheel 13 can collide with the surrounding objects to adjust its own position and reduce the pressure during the collision.

[0047] Furthermore, it also includes an air inlet nozzle, which is connected to the main pressurizing hole 11.

[0048] From the above description, it can be seen that it is beneficial to better introduce the pressure source into the main pressurizing hole 11 through the air inlet nozzle.

[0049] Embodiment 1

[0050] Please refer to Figure 1 to Fig. 9 , a tool for pressure transmitter pressurization test, including a base plate 10, a pressurization rod assembly 20, a support assembly 30 and a limit assembly 40;

[0051] The bottom plate 10 is provided with a main pressurizing hole 11 and a plurality of branch pressurizing holes 12, the main pressurizing hole 11 and the plurality of branch pressurizing holes 12 are connected to each other, one end of a pressurizing rod assembly 20 is connected to a branch pressurizing hole 12, the support assembly 30 is installed on the bottom plate 10, and the limit assembly 40 is arranged above the pressurizing rod assembly 20 and connected to the support assembly 30;

[0052] The pressurizing rod assembly 20 includes a pressurizing seat 21 and at least one extension piece 23, one end of the pressurizing seat 21 is connected to the branch pressurizing hole 12, the other end of the pressurizing seat 21 is inserted into one end of the extension piece 23, and the other end of the extension piece 23 is provided with a first sealing ring 24;

[0053] One end of the extension piece 23 is provided with an inner guide hole, and the other end of the extension piece 23 is provided with an insertion rod adapted to the inner guide hole;

[0054] One end of the pressurizing seat 21 is connected to the branch pressurizing hole 12 via a second sealing ring, and the other end of the pressurizing seat 21 is sleeved with a third sealing ring 22, and is connected to the inside of one end of the extension member 23 via the third sealing ring 22;

[0055] The support assembly 30 includes a side plate 31 and a height support rod 32. The pressure rod assembly 20 is provided with a side plate 31 on both sides. The side plate 31 is detachably connected to the bottom plate 10 through bolts, and the height support rod 32 is detachably connected to the bottom plate 10 through a mounting plate 33.

[0056] One end of the height support pole 32 is threadedly connected to one side of the mounting plate 33, and the other side of the mounting plate 33 is detachably connected to the base plate 10 by bolts;

[0057] By changing the installation depth between one end of the height support vertical rod 32 and one side of the mounting plate 33, the support height of the height support vertical rod 32 is changed;

[0058] The limiting assembly 40 includes a pressing plate 43, a limiting rod 41 and a connecting block 42. The pressing plate 43 is arranged above the pressure rod assembly 20. One end of the limiting rod 41 is detachably connected to the connecting block 42 by a bolt. A limiting hole 34 is arranged on the side plate 31. The other end of the limiting rod 41 is inserted into the limiting hole 34. The limiting rod 41 is arranged above the pressing plate 43.

[0059] It is beneficial to hold the pressing plate 43 above the pressure transmitter 60, and make the top of the pressure transmitter 60 exposed outside the pressing plate 43 through the hole groove on the pressing plate 43, and then hold the limit rod 41 on the pressing plate 43, and connect the limit rod 41 with the limit hole 34, thereby preventing the pressure transmitter 60 from rising during the pressurization process, and increasing the limit area of ​​the limit rod 41 through the pressing plate 43;

[0060] The other end of the limiting rod 41 is provided with a chamfer, which is conducive to the other end of the limiting rod 41 being inserted into the limiting hole 34 more quickly;

[0061] It also includes an anti-slip member 50, one end of which is rotatably connected to the side stand 31 through a locking member, and the other end of which is pressed on the connecting block 42;

[0062] The locking member is a bolt;

[0063] The second sealing ring is an axial seal;

[0064] The pressurizing seat 21 is provided with an air pipe inside, and the air pipe is connected with the inner guide hole;

[0065] It also includes a lifting handle 15, and the two sides of the bottom plate 10 are detachably connected with a lifting handle 15 by bolts;

[0066] It also includes a guide wheel 13, and the base plate 10 is rotatably connected to the guide wheel 13 on all four sides;

[0067] It also includes a port plug 14, an airway is provided inside the bottom plate 10, the main pressurizing hole 11 and the plurality of branch pressurizing holes 12 are connected to the airway, the airway is used to connect the main pressurizing hole 11 and the plurality of branch pressurizing holes 12, the airway is penetrated inside the bottom plate 10, an airway opening is provided on the outer surface of the bottom plate 10, the airway opening is detachably connected to the plurality of port plugs 14, and is threadedly connected, and a fourth sealing ring is provided at the connection between the port plug 14 and the airway opening;

[0068] The diameter of the airway opening is the same as the diameter of the branch pressurization hole 12. When part of the branch pressurization hole 12 is not used, the branch pressurization hole 12 can be blocked by an additional port plug 14 to prevent air leakage from the branch pressurization hole 12.

[0069] It also includes an air inlet nozzle, which is connected to the main pressurizing hole 11.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0071] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tool for pressure transmitter pressurization test, characterized in that: It includes a base plate, a pressure rod assembly, a support assembly and a limit assembly; The bottom plate is provided with a main pressurizing hole and a plurality of branch pressurizing holes, the main pressurizing hole and the plurality of branch pressurizing holes are connected to each other, one end of a pressurizing rod assembly is connected to a branch pressurizing hole, the support assembly is installed on the bottom plate, and the limit assembly is arranged above the pressurizing rod assembly and connected to the support assembly; The pressurizing rod assembly includes a pressurizing seat and at least one extension piece, one end of the pressurizing seat is connected to the branch pressurizing hole, the other end of the pressurizing seat is inserted into the interior of one end of the extension piece, and the other end of the extension piece is provided with a first sealing ring; One end of the pressurizing seat is connected to the branch pressurizing hole through a second sealing ring, and the other end of the pressurizing seat is sleeved with a third sealing ring and connected to the inside of one end of the extension piece through the third sealing ring; The support assembly includes side uprights and height support uprights. The pressure rod assembly is provided with a side upright on both sides. The side uprights are detachably connected to the bottom plate. The height support uprights are detachably connected to the bottom plate via a mounting plate.

2. The tooling for pressure transmitter pressurization testing according to claim 1, characterized in that: It also includes an anti-slip piece, one end of which is rotatably connected to the side stand through a locking piece.

3. The tooling for pressure transmitter pressurization testing according to claim 1, characterized in that: It also includes a lifting handle, and two sides of the bottom plate are respectively detachably connected with a lifting handle.

4. The tooling for pressure transmitter pressurization testing according to claim 1, characterized in that: It also includes a guide wheel, and the four sides of the bottom plate are rotatably connected with the guide wheel.

5. The tooling for pressure transmitter pressurization testing according to claim 1, characterized in that: It also includes an air inlet nozzle, which is connected to the main pressurizing hole.

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