Tool for testing water pressure resistance of valve

Abstract

The utility model provides a tool for testing the water pressure resistance of a valve, which relates to the technical field of valve detection and comprises a bottom plate, a connecting shell is fixed on the upper surface of the bottom plate, and two moving frames are arranged on the inner bottom wall of the connecting shell in a sliding manner. According to the testing tool for the water pressure resistance of the valve, the transmission frame and the limiting shaft can drive the connecting sleeve to slide on the periphery of the connecting rod and drive the connecting rod to rotate with the positioning rod as the center, the arc-shaped plate can be close to the surface of the valve in the transmission frame, and the two ends of the valve are fixed at the same time; external water flow enters the valve through a connecting pipe through a water pump for pressure detection, the position stability during valve detection is improved, a second threaded rod is rotated, a transmission block can slide in a connecting frame, and the rotating angle of a transmission frame is adjusted according to the position of the transmission block in a limiting groove; therefore, the moving position of the positioning piece can be adjusted according to valves of different specifications.

Description

Technical Field

[0001] This utility model relates to a valve testing fixture, specifically a valve water pressure resistance testing fixture, belonging to the field of valve testing technology. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the transported medium. They have functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief. Valves can be used to control the flow rate of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media.

[0003] Chinese patent application publication number CN216051157U discloses a valve water pressure testing device. This utility model can determine whether there is a problem with the valve's sealing performance by comparing the air pressure at the air inlet and outlet. After the test, there is no need to clean or dry the valve, which helps to reduce the workload of staff and improve the efficiency of valve testing.

[0004] Although the above-mentioned patented solution can use air instead of water to test the valve, the water pressure testing equipment in the above-mentioned patent requires the use of a positioning component that matches the valve to fix the valve. Currently, there are many different specifications of valves on the market, so it is necessary to replace the positioning component with a different specification according to the valve, which increases the valve testing cost. Moreover, when the internal pressure of the valve is too high, the valve is prone to shaking.

[0005] Therefore, a valve water pressure resistance testing fixture is proposed here. Utility Model Content

[0006] This utility model proposes a valve water pressure resistance testing fixture to solve the problems in the prior art where water pressure testing equipment is not convenient for quickly fixing valves of different specifications and the valves are prone to shaking during testing.

[0007] This utility model is achieved through the following technical solution: a valve water pressure resistance testing fixture, including a base plate, a connecting shell fixed on the upper surface of the base plate, two movable frames sliding on the inner bottom wall of the connecting shell, a transmission frame rotatably connected to one side of the movable frame, a set of positioning components for fixing the valve inside the transmission frame, the positioning components including a positioning rod fixed to one side of the movable frame, a connecting rod rotatably sleeved around the positioning rod, an arc-shaped plate hinged to the end of the connecting rod away from the positioning rod, a connecting sleeve slidably sleeved around the connecting rod, and a limiting shaft rotatably connected inside the transmission frame fixed to one side of the connecting sleeve.

[0008] Furthermore, an observation window is provided on one side of the connecting shell, and a transmission assembly is provided on the inner bottom wall of the connecting shell to drive the displacement of the two moving frames. The transmission assembly includes a bidirectional threaded rod that is rotatably sleeved inside the connecting shell. The two ends of the bidirectional threaded rod are provided with two threads in opposite directions. One end of the bidirectional threaded rod rotatably passes through the connecting shell and is fixed with a transmission wheel.

[0009] Furthermore, the transmission assembly also includes two sliding grooves formed in the bottom wall of the connecting housing. Two movable blocks are slidably connected inside the two sliding grooves, and the two movable blocks are fixed to the bottom surface of the two movable frames. The two movable blocks are threaded onto both ends of the bidirectional threaded rod.

[0010] Furthermore, both of the movable frames have placement holes inside, and a sealing shell is fixed to the side of one of the movable frames away from the transmission frame.

[0011] Furthermore, a water pump is fixed to the upper surface of the base plate, and a connecting pipe is connected to one side of the water pump. The end of the connecting pipe away from the water pump slides through the connecting shell and extends into the interior of the connecting shell.

[0012] One side of the movable frame is provided with a power component that drives the transmission frame to rotate. The power component includes a connecting frame fixed to one side of the transmission frame. A limit groove is opened inside the connecting frame. A second threaded rod is rotatably sleeved inside the connecting frame. A transmission block that slides inside the limit groove is threaded around the second threaded rod. A set of scale rods is fixed to one side of the connecting frame.

[0013] Furthermore, the power assembly also includes a motor fixed to one side of the movable frame. The output end of the motor is fixed with an output rod. The end of the output rod away from the motor rotatably passes through the movable frame and is fixedly sleeved with a first transmission rod. The end of the first transmission rod away from the output rod is rotatably connected to a second transmission rod. The end of the second transmission rod away from the first transmission rod is rotatably connected to one side of the transmission block.

[0014] Furthermore, a set of positioning blocks is slidably connected to the inner wall of the transmission frame, and the positioning blocks are fixed to the inner wall of the movable frame.

[0015] This utility model provides a tooling for testing the water pressure resistance of valves, which has the following beneficial effects:

[0016] 1. This valve water pressure resistance testing fixture, through the transmission frame and the limiting shaft, can drive the connecting sleeve to slide around the connecting rod, and drive the connecting rod to rotate around the positioning rod. This allows the arc plate to approach the surface of the valve inside the transmission frame, fixing both ends of the valve simultaneously. Then, one end of the connecting pipe is connected to the valve inside the moving frame. A water pump is used to bring external water into the valve through the connecting pipe for pressure testing, improving the stability of the valve position during testing.

[0017] 2. This valve water pressure resistance testing fixture starts the motor to drive the output rod to rotate. Through the first and second transmission rods, it can drive the transmission block to move. Through the connecting frame, it drives the transmission frame to rotate on one side of the moving frame. Rotating the second threaded rod can make the transmission block slide inside the connecting frame. The rotation angle of the transmission frame can be adjusted according to the position of the transmission block inside the limiting groove, so as to adjust the position of the positioning component according to different valve specifications. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the internal structure of the connecting shell in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the transmission frame and positioning components in this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the power component in this utility model.

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Base plate; 2. Connecting shell; 21. Observation window; 3. Moving frame;

[0024] 4. Transmission assembly; 41. Double-ended threaded rod; 42. Moving block; 43. Transmission wheel; 44. Slide groove;

[0025] 5. Transmission frame; 51. Positioning block; 6. Sealing shell;

[0026] 7. Positioning assembly; 71. Positioning rod; 72. Connecting rod; 73. Arc plate; 74. Connecting sleeve; 75. Limiting shaft;

[0027] 8. Power assembly; 81. Connecting frame; 82. Limiting groove; 83. Second threaded rod; 84. Transmission block; 85. Scale rod; 86. Motor; 87. Output rod; 88. First transmission rod; 89. Second transmission rod;

[0028] 9. Water pump; 10. Connecting pipe. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0030] Please see Figures 1-4 The present invention proposes the following implementation scheme: a valve water pressure resistance testing fixture, including a base plate 1, a connecting shell 2 fixed on the upper surface of the base plate 1, and two movable frames 3 sliding on the inner bottom wall of the connecting shell 2.

[0031] Please refer to this carefully. Figure 2 An observation window 21 is provided on one side of the connecting shell 2. A transmission assembly 4 is provided on the inner bottom wall of the connecting shell 2 to drive the displacement of the two moving frames 3. The transmission assembly 4 includes a bidirectional threaded rod 41 that is rotatably sleeved inside the connecting shell 2. The two ends of the bidirectional threaded rod 41 are provided with two threads in opposite directions. One end of the bidirectional threaded rod 41 rotatably passes through the connecting shell 2 and is fixed with a transmission wheel 43.

[0032] The transmission assembly 4 also includes two sliding grooves 44 formed in the bottom wall of the connecting shell 2. Two movable blocks 42 are slidably connected inside the two sliding grooves 44 respectively, and the two movable blocks 42 are fixed to the bottom surface of the two movable frames 3 respectively. The two movable blocks 42 are threadedly sleeved on both ends of the bidirectional threaded rod 41.

[0033] Both movable frames 3 have placement holes inside, and a sealing shell 6 is fixed to the side of one of the movable frames 3 away from the transmission frame 5.

[0034] In the above scheme, the rotating transmission wheel 43, through the bidirectional threaded rod 41 and the moving block 42, can drive the moving frame 3 to slide on the inner bottom wall of the connecting shell 2, so that the valve enters the transmission frame 5 and the moving frame 3 in sequence and contacts the inner side wall of the sealing shell 6.

[0035] Please refer to this carefully. Figure 3 A transmission frame 5 is rotatably connected to one side of the movable frame 3. A set of positioning components 7 for fixing the valve is provided inside the transmission frame 5. The positioning components 7 include a positioning rod 71 fixed to one side of the movable frame 3. A connecting rod 72 is rotatably sleeved around the positioning rod 71. An arc plate 73 is hinged to the end of the connecting rod 72 away from the positioning rod 71. A connecting sleeve 74 is slidably sleeved around the connecting rod 72. A limiting shaft 75 rotatably connected inside the transmission frame 5 is fixed to one side of the connecting sleeve 74.

[0036] In the above scheme, the transmission frame 5 and the limiting shaft 75 can drive the connecting sleeve 74 to slide around the connecting rod 72, and drive the connecting rod 72 to rotate around the positioning rod 71, so that the arc plate 73 can approach the surface of the valve inside the transmission frame 5 and fix both ends of the valve at the same time.

[0037] Please refer to this carefully. Figure 1 A water pump 9 is fixed on the upper surface of the base plate 1. A connecting pipe 10 is connected to one side of the water pump 9. The end of the connecting pipe 10 away from the water pump 9 slides through the connecting shell 2 and extends into the interior of the connecting shell 2.

[0038] In the above scheme, one end of the connecting pipe 10 is connected to the valve inside the mobile frame 3, and the water pump 9 brings external water into the valve through the connecting pipe 10 for pressure detection.

[0039] Please refer to this carefully. Figure 3 and Figure 4 The movable frame 3 is provided with a power component 8 that drives the transmission frame 5 to rotate on one side. The power component 8 includes a connecting frame 81 fixed on one side of the transmission frame 5. A limiting groove 82 is opened inside the connecting frame 81. A second threaded rod 83 is rotatably sleeved inside the connecting frame 81. A transmission block 84 that slides inside the limiting groove 82 is threadedly sleeved on the outer side of the second threaded rod 83. A set of scale rods 85 is fixed on one side of the connecting frame 81.

[0040] Please refer to this carefully. Figure 4 The power assembly 8 also includes a motor 86 fixed to one side of the movable frame 3. An output rod 87 is fixed to the output end of the motor 86. The end of the output rod 87 away from the motor 86 rotatably passes through the movable frame 3 and is fixedly sleeved with a first transmission rod 88. The end of the first transmission rod 88 away from the output rod 87 is rotatably connected to a second transmission rod 89. The end of the second transmission rod 89 away from the first transmission rod 88 is rotatably connected to one side of the transmission block 84.

[0041] A set of positioning blocks 51 are slidably connected to the inner wall of the transmission frame 5, and the positioning blocks 51 are fixed to the inner wall of the movable frame 3.

[0042] In the above scheme, the starting motor 86 drives the output rod 87 to rotate, and the first transmission rod 88 and the second transmission rod 89 can drive the transmission block 84 to move. The connecting frame 81 drives the transmission frame 5 to rotate on one side of the moving frame 3. Rotating the second threaded rod 83 can make the transmission block 84 slide inside the connecting frame 81, and adjust the rotation angle of the transmission frame 5 according to the position of the transmission block 84 inside the limiting groove 82.

[0043] In use, the valve to be tested is placed inside the connecting shell 2. Rotating the transmission wheel 43 causes the moving frame 3 to slide against the inner bottom wall of the connecting shell 2 via the bidirectional threaded rod 41 and the moving block 42, allowing the valve to sequentially enter the transmission frame 5 and the moving frame 3 and contact the inner side wall of the sealing shell 6. Then, the motor 86 is started, driving the output rod 87 to rotate. The first transmission rod 88 and the second transmission rod 89 move the transmission block 84, and the connecting frame 81 causes the transmission frame 5 to rotate on one side of the moving frame 3. Rotating the second threaded rod 83 allows the transmission block 84 to move within the connecting frame 81. The internal sliding of 1 allows the rotation angle of the transmission frame 5 to be adjusted according to the position of the transmission block 84 inside the limiting groove 82. Through the transmission frame 5 and the limiting shaft 75, the connecting sleeve 74 can be driven to slide around the periphery of the connecting rod 72, and the connecting rod 72 can be driven to rotate around the positioning rod 71. This allows the arc plate 73 to approach the surface of the valve inside the transmission frame 5, fixing both ends of the valve simultaneously. Then, one end of the connecting pipe 10 is connected to the valve inside the moving frame 3. The water pump 9 allows external water to flow through the connecting pipe 10 into the valve for pressure detection, improving the stability of the valve position during detection.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve water pressure resistance test tooling comprising a base plate (1), characterized in that: A connecting shell (2) is fixed on the upper surface of the base plate (1). Two movable frames (3) slide on the inner bottom wall of the connecting shell (2). A transmission frame (5) is rotatably connected to one side of the movable frame (3). A set of positioning components (7) for fixing the valve is provided inside the transmission frame (5). The positioning components (7) include a positioning rod (71) fixed on one side of the movable frame (3). A connecting rod (72) is rotatably sleeved on the periphery of the positioning rod (71). An arc plate (73) is hinged to one end of the connecting rod (72) away from the positioning rod (71). A connecting sleeve (74) is slidably sleeved on the periphery of the connecting rod (72). A limiting shaft (75) rotatably connected inside the transmission frame (5) is fixed on one side of the connecting sleeve (74). The movable frame (3) is provided with a power assembly (8) that drives the transmission frame (5) to rotate on one side. The power assembly (8) includes a connecting frame (81) fixed on one side of the transmission frame (5). A limiting groove (82) is opened inside the connecting frame (81). A second threaded rod (83) is rotatably sleeved inside the connecting frame (81). A transmission block (84) that slides inside the limiting groove (82) is threaded around the second threaded rod (83). A set of scale rods (85) is fixed on one side of the connecting frame (81).

2. The valve water pressure resistance test tooling of claim 1, wherein: A water pump (9) is fixed on the upper surface of the base plate (1). A connecting pipe (10) is connected to one side of the water pump (9). The end of the connecting pipe (10) away from the water pump (9) slides through the connecting shell (2) and extends into the interior of the connecting shell (2).

3. The valve water pressure resistance testing tool of claim 1, wherein: Both of the movable frames (3) have placement holes inside, and a sealing shell (6) is fixed on the side of one of the movable frames (3) away from the transmission frame (5).

4. The valve water pressure resistance testing tool of claim 1, wherein: The connecting shell (2) has an observation window (21) on one side. The inner bottom wall of the connecting shell (2) is provided with a transmission assembly (4) that drives the displacement of the two moving frames (3). The transmission assembly (4) includes a bidirectional threaded rod (41) that is rotatably sleeved inside the connecting shell (2). The two ends of the bidirectional threaded rod (41) are provided with two threads in opposite directions. One end of the bidirectional threaded rod (41) rotatably passes through the connecting shell (2) and is fixed with a transmission wheel (43).

5. The valve water pressure resistance testing fixture according to claim 4, characterized in that: The transmission assembly (4) further includes two sliding grooves (44) formed in the bottom wall of the connecting shell (2). Two moving blocks (42) are slidably connected inside the two sliding grooves (44), and the two moving blocks (42) are fixed on the bottom surface of the two moving frames (3). The two moving blocks (42) are threaded onto both ends of the bidirectional threaded rod (41).

6. The valve water pressure resistance testing tool of claim 1, wherein: A set of positioning blocks (51) are slidably connected to the inner wall of the transmission frame (5), and the positioning blocks (51) are fixed to the inner wall of the moving frame (3).

7. The valve water pressure resistance testing tool of claim 1, wherein: The power assembly (8) also includes a motor (86) fixed to one side of the movable frame (3). The output end of the motor (86) is fixed with an output rod (87). The end of the output rod (87) away from the motor (86) rotatably passes through the movable frame (3) and is fixedly sleeved with a first transmission rod (88). The end of the first transmission rod (88) away from the output rod (87) is rotatably connected to a second transmission rod (89). The end of the second transmission rod (89) away from the first transmission rod (88) is rotatably connected to one side of the transmission block (84).

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