Valve pressure testing device

Abstract

The utility model provides a valve pressure testing device, which relates to the technical field of valve production, and comprises a support table, and a lifting unit, a placement table, a valve body and a clamping assembly which are arranged on the surface of the support table, one end of the lifting unit is fixed on the surface of the support table, the placement table is fixed at the upper end of the lifting unit, and the clamping assembly is fixed on the placement table. The clamping assembly is fixed to the surface of the supporting table, and the valve body can be fixed to the surface of the supporting table through the clamping assembly. According to the valve pressure testing device, the detachable sealing pipe and the fixing assembly are arranged, so that the testing pipe is matched with valves of different specifications, the application range of the valve pressure testing device is expanded, the valves of different calibers can be subjected to pressure testing, and the using flexibility and convenience of the pressure testing device are improved; the situation that an independent pressure measuring device is configured when valves of different specifications are tested is avoided, the purchase cost and the maintenance cost are saved, and the maintenance and repair time is also saved.

Description

Technical Field

[0001] The utility model relates to a pressure testing device, in particular to a valve pressure testing device, belonging to the technical field of valve production. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, flow diversion, prevention of backflow, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shut-off valves to various valves used in extremely complex automatic control systems.

[0003] Valves need to be tested for sealing before leaving the factory to ensure that there is no leakage in the valves produced. The existing valve pressure testing equipment mostly works by blocking the port and injecting the testing medium into the valve by using a pressure testing machine under the condition that the port is blocked. However, when testing valves of different models, it is necessary to replace the flange on the testing device, which consumes a lot of time and reduces the test efficiency. At the same time, the existing testing equipment is not convenient for fixing valves of different specifications during the valve testing process, which causes the valve to deviate or shake during the testing process, affecting the test results. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model provides a valve pressure testing device to solve the problem in the prior art that when testing valves of different models, the flange of the testing device needs to be replaced and it is inconvenient to fix valves of different specifications.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical solutions: a valve pressure testing device, comprising a support platform and a lifting unit, a placement platform, a valve body and a clamping assembly arranged on the surface of the support platform, wherein one end of the lifting unit is fixed to the surface of the support platform, the placement platform is fixed to the upper end of the lifting unit, the clamping assembly is fixed to the surface of the support platform, and the valve body can be fixed to the surface of the support platform through the clamping assembly;

[0008] A test tube is provided on the surface of the placement table, a sealing tube and a fixing assembly are provided inside the test tube, and the sealing tube can be fixed to one end of the test tube through the fixing assembly;

[0009] The fixing assembly comprises a rotating shaft and a knob, a threaded tube and a clamping block arranged at one end of the rotating shaft;

[0010] The clamping assembly comprises a dual-axis stepping motor and a first threaded rod, a moving block, a fixed block, a fixed plate and a second threaded rod arranged on the side of the dual-axis asynchronous motor.

[0011] Furthermore, a transmission compartment is provided inside the test tube, the rotating shaft can be passed through the surface of the transmission compartment through a bearing, the knob is fixed to one end of the rotating shaft, a thread is provided on the surface of the rotating shaft, the threaded tube can be movably connected to the rotating shaft through the thread, the clamping block is fixed to one end of the threaded tube, a clamping groove is provided on the surface of the sealing tube, and the clamping block can be clamped in the clamping groove.

[0012] Furthermore, a first slider is fixed to the side of the threaded tube, and a first slide groove is opened on the surface of the transmission warehouse. The first slider can be slidably connected in the first slide groove, and the threaded tube can be movably connected in the transmission warehouse through the first slider and the first slide groove. There are two groups of the first slider and the first slide groove, and they are symmetrically arranged on both sides of the threaded tube.

[0013] Furthermore, a placement groove is opened on the surface of the support platform, the valve body is overlapped in the placement groove, the dual-axis stepper motor is fixed on the surface of the support platform, the first threaded rod and the second threaded rod are both fixed on the output end of the dual-axis stepper motor, and the thread directions of the first threaded rod and the second threaded rod are opposite.

[0014] Furthermore, the inner hole of the movable block is provided with a thread, and the movable block can be movably connected to the first threaded rod through the thread, the fixed block is fixed to the surface of the support platform, one end of the first threaded rod is fixed to the side of the fixed block through a bearing, and the fixed plate is fixed to the side of the movable block. There are two movable blocks and two fixed plates, and they are symmetrically arranged on the surfaces of the first threaded rod and the second threaded rod.

[0015] Furthermore, a second slide groove is provided on the surface of the support platform, a second slider is fixed on the lower surface of the moving block, the second slider can be slidably connected in the second slide groove, and the moving block can be movably connected to the surface of the support platform through the second slider and the second slide groove.

[0016] Furthermore, a plurality of annular sealing rings are fixed on the surface of the sealing tube, and the diameter of the sealing tube matches the inner diameter of the valve body.

[0017] Furthermore, a gas sensor is arranged inside the placement groove, and the gas sensor is arranged at the center position of the valve body.

[0018] The utility model provides a valve pressure testing device, which has the following beneficial effects:

[0019] 1. The valve pressure testing device is provided with a detachable sealing tube and a fixed component so that the test tube is adapted to valves of different specifications, thereby expanding its scope of application. It can measure the pressure of valves of different calibers, improve the flexibility and convenience of the pressure testing device, and avoid configuring a separate pressure testing device when testing valves of different specifications, which not only saves purchase cost and maintenance cost, but also saves maintenance and repair time.

[0020] 2. The valve pressure testing device can support valve bodies of different specifications through the clamping assembly, which can not only provide additional support and fixation to ensure that the valve maintains a stable position and state during the pressure test, avoiding inaccurate test results due to valve displacement or shaking, but also increase the stability of the valve body by supporting it, reduce accidental damage to the valve during the test, and improve the safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of a top view and cross-section structure of the utility model;

[0024] Figure 4 For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0025] Description of Reference Numerals

[0026] 1. Support table; 101. Placement slot; 102. Slide slot;

[0027] 2. Lifting unit; 3. Placement table; 4. Valve body; 5. Test tube; 501. Transmission compartment; 6. Sealing tube; 601. Card slot;

[0028] 7. Fixed assembly; 701. Rotating shaft; 702. Knob; 703. Threaded tube; 704. Block; 705. First slider;

[0029] 8. Clamping assembly; 801. Dual-axis stepping motor; 802. First threaded rod; 803. Fixed block; 804. Moving block; 805. Fixed plate; 806. Second threaded rod; 807. Second sliding block. DETAILED DESCRIPTION

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment of the utility model provides a valve pressure testing device, including a support platform 1 and a lifting unit 2, a placement platform 3, a valve body 4 and a clamping assembly 8 arranged on the surface of the support platform 1. One end of the lifting unit 2 is fixed on the surface of the support platform 1, the placement platform 3 is fixed on the upper end of the lifting unit 2, and the clamping assembly 8 is fixed on the surface of the support platform 1. The valve body 4 can be fixed on the surface of the support platform 1 through the clamping assembly 8;

[0031] Please refer to Figure 1 , Figure 2 and Figure 4 A test tube 5 is penetrated on the surface of the placement table 3, and a sealing tube 6 and a fixing component 7 are arranged inside the test tube 5. The sealing tube 6 can be fixed to one end of the test tube 5 through the fixing component 7; the fixing component 7 includes a rotating shaft 701 and a knob 702, a threaded tube 703 and a block 704 arranged at one end of the rotating shaft 701; a transmission compartment 501 is opened inside the test tube 5, and the rotating shaft 701 can be penetrated on the surface of the transmission compartment 501 through a bearing, the knob 702 is fixed to one end of the rotating shaft 701, and a thread is opened on the surface of the rotating shaft 701, and the threaded tube 703 can be connected to the rotating shaft 7 through a thread. 01 movable connection, the clamping block 704 is fixed at one end of the threaded tube 703, and a clamping groove 601 is provided on the surface of the sealing tube 6, and the clamping block 704 can be clamped in the clamping groove 601; the valve pressure testing device is provided with a detachable sealing tube 6 and a fixing component 7, so that the test tube 5 is adapted to valves of different specifications, thereby expanding its scope of application, and can measure the pressure of valves of different calibers, thereby improving the flexibility and convenience of the pressure testing device, avoiding the configuration of a separate pressure testing device when testing valves of different specifications, not only saving purchase cost and maintenance cost, but also saving maintenance and repair time.

[0032] Please refer to Figure 1 and Figure 3The clamping assembly 8 includes a dual-axis stepping motor 801 and a first threaded rod 802, a moving block 804, a fixed block 803, a fixed plate 805 and a second threaded rod 806 arranged on the side of the dual-axis asynchronous motor; a placement groove 101 is provided on the surface of the support platform 1, and the valve body 4 is overlapped in the placement groove 101. The dual-axis stepping motor 801 is fixed on the surface of the support platform 1, and the first threaded rod 802 and the second threaded rod 806 are both fixed at the output end of the dual-axis stepping motor 801. The thread directions of the first threaded rod 802 and the second threaded rod 806 are opposite; a thread is provided on the inner hole of the moving block 804, and the moving block 804 can be movably connected with the first threaded rod 802 through the thread, and the fixed block 803 is fixed on the support platform 1 On the surface, one end of the first threaded rod 802 is fixed to the side of the fixed block 803 through a bearing, and the fixed plate 805 is fixed to the side of the movable block 804. There are two movable blocks 804 and two fixed plates 805, which are symmetrically arranged on the surface of the first threaded rod 802 and the second threaded rod 806; the valve pressure testing device can support valve bodies 4 of different specifications through the clamping assembly 8, which can not only provide additional support and fixation to ensure that the valve maintains a stable position and state during the pressure test, but also avoid inaccurate test results due to valve displacement or shaking. In addition, by supporting the valve body 4, its stability can be increased, accidental damage to the valve during testing can be reduced, and the safety of the test process can be improved.

[0033] Please refer to Figure 4 A first slider 705 is fixed to the side of the threaded tube 703, and a first slide groove is opened on the surface of the transmission warehouse 501. The first slider 705 can be slidably connected in the first slide groove. The threaded tube 703 can be movably connected in the transmission warehouse 501 through the first slider 705 and the first slide groove. There are two groups of the first slider 705 and the first slide groove, and they are symmetrically arranged on both sides of the threaded tube 703.

[0034] Please refer to Figure 1 and Figure 2 A second slide groove 102 is provided on the surface of the support platform 1, and a second slider 807 is fixed to the lower surface of the moving block 804. The second slider 807 can be slidably connected in the second slide groove 102, and the moving block 804 can be movably connected to the surface of the support platform 1 through the second slider 807 and the second slide groove 102.

[0035] Please refer to Figure 2 A plurality of annular sealing rings are fixed on the surface of the sealing tube 6 , and the diameter of the sealing tube 6 matches the inner diameter of the valve body 4 .

[0036] When the utility model is in use: first, the device is placed in a suitable position, and then the device is electrically connected to an external power supply, and then the staff places the valve body 4 in the placement groove 101, and then the staff places the sealing tube 6 in a suitable position, and then turns the knob 702 to drive the rotating shaft 701 to rotate, and the rotating shaft 701 drives the threaded tube 703 to move, thereby driving the block 704 fixed at one end of the threaded tube 703 to move synchronously, and when the block 704 is engaged in the slot 601, the staff can stop turning the knob 702 to complete the fixation of the sealing tube 6.

[0037] Then the staff controls the operation of the dual-axis stepper motor 801 through the control device, driving the first threaded rod 802 and the second threaded rod 806 to rotate simultaneously, and the first threaded rod 802 and the second threaded rod 806 drive the moving block 804 to move, thereby driving the fixed plate 805 fixed on the side of the moving block 804 to move synchronously, and the two symmetrically distributed fixed plates 805 move toward each other. When the two fixed plates 805 are both in contact with the valve body 4, the staff can control the dual-axis stepper motor 801 to stop operating through the control device to complete the fixation of the valve body 4.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A valve pressure testing device, comprising a support platform (1), a lifting unit (2), a placement platform (3), a valve body (4) and a clamping assembly (8) arranged on the surface of the support platform (1), characterized in that: One end of the lifting unit (2) is fixed to the surface of the support platform (1), the placement platform (3) is fixed to the upper end of the lifting unit (2), the clamping assembly (8) is fixed to the surface of the support platform (1), and the valve body (4) can be fixed to the surface of the support platform (1) through the clamping assembly (8); A test tube (5) is provided on the surface of the placement platform (3), a sealing tube (6) and a fixing component (7) are provided inside the test tube (5), and the sealing tube (6) can be fixed to one end of the test tube (5) through the fixing component (7); The fixing assembly (7) comprises a rotating shaft (701), and a knob (702), a threaded tube (703) and a clamping block (704) arranged at one end of the rotating shaft (701); The clamping assembly (8) comprises a dual-axis stepping motor (801) and a first threaded rod (802), a moving block (804), a fixed block (803), a fixed plate (805) and a second threaded rod (806) arranged on the side of the dual-axis asynchronous motor.

2. A valve pressure testing device according to claim 1, characterized in that: A transmission chamber (501) is provided inside the test tube (5); the rotating shaft (701) can be inserted through the surface of the transmission chamber (501) via a bearing; the knob (702) is fixed to one end of the rotating shaft (701); a thread is provided on the surface of the rotating shaft (701); the threaded tube (703) can be movably connected to the rotating shaft (701) via the thread; the clamping block (704) is fixed to one end of the threaded tube (703); a clamping groove (601) is provided on the surface of the sealing tube (6); and the clamping block (704) can be clamped in the clamping groove (601).

3. A valve pressure testing device according to claim 2, characterized in that: A first slider (705) is fixed on the side of the threaded tube (703), and a first slide groove is provided on the surface of the transmission bin (501). The first slider (705) can be slidably connected in the first slide groove. The threaded tube (703) can be movably connected in the transmission bin (501) through the first slider (705) and the first slide groove. There are two groups of the first slider (705) and the first slide groove, and they are symmetrically arranged on both sides of the threaded tube (703).

4. A valve pressure testing device according to claim 1, characterized in that: The support platform (1) has a placement groove (101) on its surface, the valve body (4) is overlapped in the placement groove (101), the dual-axis stepper motor (801) is fixed on the support platform (1) surface, the first threaded rod (802) and the second threaded rod (806) are both fixed on the output end of the dual-axis stepper motor (801), and the thread directions of the first threaded rod (802) and the second threaded rod (806) are opposite.

5. A valve pressure testing device according to claim 1, characterized in that: The inner hole of the movable block (804) is provided with a thread, and the movable block (804) can be movably connected to the first threaded rod (802) through the thread. The fixed block (803) is fixed on the surface of the support platform (1). One end of the first threaded rod (802) is fixed to the side of the fixed block (803) through a bearing. The fixed plate (805) is fixed to the side of the movable block (804). There are two movable blocks (804) and two fixed plates (805), and they are symmetrically arranged on the surface of the first threaded rod (802) and the second threaded rod (806).

6. A valve pressure testing device according to claim 1, characterized in that: A second slide groove (102) is provided on the surface of the support platform (1), and a second slider (807) is fixed on the lower surface of the moving block (804); the second slider (807) can be slidably connected in the second slide groove (102), and the moving block (804) can be movably connected to the surface of the support platform (1) through the second slider (807) and the second slide groove (102).

7. A valve pressure testing device according to claim 1, characterized in that: A plurality of annular sealing rings are fixed on the surface of the sealing tube (6), and the diameter of the sealing tube (6) matches the inner diameter of the valve body (4).

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