Ball valve shell sealing pressure test bench

Abstract

The utility model discloses a ball valve housing sealing pressure test bench, and specifically relates to the valve production test field, comprising a test pool, one side of the bottom of the test pool is provided with a water inlet and outlet hole, one side of the test pool is provided with a support column, the top of the support column is connected with an air inflation tank, and the air inflation tank is connected with the air inflation tank. Two sets of connecting protruding blocks are arranged on the sides, close to the testing pool, of the tops of the supporting stand columns, a detection connecting frame is connected between the two sets of connecting protruding blocks, the detection connecting frame is in a U shape, air cylinder mounting blocks are arranged on the inner side of an opening of the detection connecting frame, and a clamping air cylinder is connected between the two sets of air cylinder mounting blocks through buckles. A fixed clamping block is arranged on the inner side of the end, away from the clamping air cylinder, of the detection connecting frame, and a clamping rotary disc is slidably connected to the inner side of the detection connecting frame. According to the utility model, when the sealing performance of the ball valve housing is detected, the switch of the valve can be automatically turned on and off, the detection result is obvious, and the air leakage part is easy to observe.

Description

Technical Field

[0001] The utility model relates to the field of valve production and testing, and more specifically, the utility model relates to a pressure test bench for the sealing performance of a ball valve housing. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters (temperature, pressure, and flow rate) of the transported medium. After the valve is produced, it is necessary to detect the sealing performance of the valve.

[0003] After retrieval, the existing patent (application number CN202410672347.4) discloses a valve sealing performance test tooling, including: a bench, a test mechanism, and a control device. Among them, the bench is vertically arranged relative to the ground, a receiving groove is opened on the bench, the test mechanism is arranged on the bench, the test mechanism includes two plugging components, a vacuum pump, an air compressor, and a telescopic device. Among them, the two plugging components are respectively located at both ends of the valve to be tested, one plugging component is fixed on the bench, and the other plugging component is movably arranged on the bench. One end of the telescopic device is connected to the other plugging component. By injecting the air on one side of the valve core to the other side, the pressure difference on both sides of the valve core can quickly reach the preset value. After pressure holding, the valve core is opened, and the air in the positive pressure area autonomously replenishes the negative pressure area without gas leakage, thus greatly shortening the time required for the pressurization and pressure release processes and improving the test efficiency of the valve. The inventor found the following problems in the process of implementing the present utility model:

[0004] The existing valve sealing detection device detects the tightness of the valve through the pressure difference data at both ends of the valve, and cannot intuitively display the leaking part of the valve, which is not convenient for subsequent analysis of problems during valve production. Moreover, when detecting ball valve type valves, the valve cannot be automatically opened and closed during the detection process, increasing the workload of the detection personnel;

[0005] Therefore, a pressure test bench for the sealing performance of a ball valve housing is proposed for the above problems. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a pressure test bench for the sealing performance of a ball valve housing to solve the problems raised in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: A pressure test bench for the sealing performance of a ball valve housing, including a test water tank, an inlet and outlet hole is provided on one side of the bottom of the test water tank, and a support column is provided on one side of the test water tank. An air charging tank is connected to the top of the support column, and two groups of connecting lugs are provided on the top of the support column near the test water tank. A detection connecting frame is connected between the two groups of connecting lugs;

[0008] The detection connecting frame is "U"-shaped. An air cylinder mounting block is arranged inside the opening of the detection connecting frame. A clamping air cylinder is connected between the two groups of air cylinder mounting blocks by a buckle. A fixed clamping block is arranged inside one end of the detection connecting frame away from the clamping air cylinder. A clamping turntable is slidably connected inside the detection connecting frame.

[0009] Preferably, one end of the opening of the detection connecting frame is slidably connected to two connecting convex blocks through a rotating shaft. A rotating motor is connected to one side of the connecting convex block. And the output shaft of the rotating motor is connected to the rotating shaft connected to the detection connecting frame.

[0010] Preferably, a cylinder telescopic rod is arranged inside the clamping air cylinder. One end of the cylinder telescopic rod close to the detection connecting frame is connected to a detection clamping block. An air inflation hole is arranged on one side of the detection clamping block. And an air inflation structure is formed between the air inflation hole and an air inflation tank through a pipeline.

[0011] Preferably, plug-in sealing gaskets are arranged inside both the detection clamping block and the fixed clamping block. A plug-in air nozzle is arranged at the center position of the detection clamping block close to the fixed clamping block. And the plug-in air nozzle is communicated with the air inflation hole.

[0012] Preferably, an adjusting motor is connected to one side of the clamping turntable away from the detection connecting frame. Two clamping block chutes are arranged on one side of the clamping turntable away from the adjusting motor. And switch clamping blocks are arranged inside the clamping block chutes.

[0013] Preferably, a clamping motor is connected to the top of the clamping turntable. A lifting lead screw is connected to the output shaft of the clamping motor. And the lifting lead screw is inserted inside the clamping turntable.

[0014] Preferably, two connection nut seats with opposite threads are connected to the lifting lead screw. And transmission connecting rods are respectively connected between the two groups of switch clamping blocks and the two groups of switch clamping blocks. The transmission connecting rods are slidably connected to the clamping block chutes.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. Compared with the prior art, this ball valve housing sealing pressure test bench can automatically open and close the valve when detecting the sealing of the ball valve housing. After the valve is fixed, two groups of switch clamping blocks approach or move away from each other in the clamping block chute to clamp or loosen the valve switch. The rotating motor drives the detection connecting frame and the clamping cylinder and the valve body connected thereto to rotate. When the detection connecting frame rotates to the 90-degree position, the detection connecting frame and the valve body it detects are immersed in the water in the test pool. Then, the gas in the air charging tank passes through the air charging hole to the plug-in air nozzle, and the valve body is inflated through the plug-in air nozzle. And when there is air leakage at the valve, air bubbles will leak out from the air leakage point, and the air leakage part can be observed more clearly. During the detection process, the adjustment motor drives the clamping turntable to rotate, and the valve switch clamped by the switch clamping block can be driven to rotate through the clamping turntable, so as to complete the opening and closing of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the whole utility model.

[0018] Figure 2 It is a schematic top view structural diagram of the detection connecting frame of the utility model.

[0019] Figure 3 It is a schematic structural diagram of the detection clamping block of the utility model.

[0020] Figure 4 It is a schematic structural diagram of the clamping turntable of the utility model.

[0021] Figure 5 It is a schematic structural diagram of the detection motor of the utility model.

[0022] Reference numerals are: 1, test pool; 2, support column; 3, air charging tank; 4, detection connecting frame; 5, clamping turntable; 6, clamping cylinder; 11, water inlet and outlet hole; 21, connecting convex block; 22, rotating motor; 41, fixed clamping block; 51, adjustment motor; 52, clamping block chute; 53, switch clamping block; 531, transmission connecting rod; 54, clamping motor; 541, lifting screw rod; 542, connecting nut seat; 61, cylinder expansion link; 62, detection clamping block; 621, plug-in sealing pad; 622, air charging hole; 623, plug-in air nozzle; 63, cylinder mounting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As shown in the attached Figures 1 to 5 A pressure test bench for the sealing performance of a ball valve housing, including a test water tank 1. One side of the bottom of the test water tank 1 is provided with a water inlet and outlet hole 11, and a support column 2 is provided on one side of the test water tank 1. The top of the support column 2 is connected with an air charging tank 3, and two groups of connecting bumps 21 are provided on the side of the top of the support column 2 close to the test water tank 1. A detection connecting frame 4 is connected between the two groups of connecting bumps 21;

[0026] The detection connecting frame 4 is in a "U" shape. The inner side of the opening of the detection connecting frame 4 is provided with a cylinder mounting block 63. A clamping cylinder 6 is connected between the two groups of cylinder mounting blocks 63 by a buckle. The inner side of the end of the detection connecting frame 4 far from the clamping cylinder 6 is provided with a fixed clamping block 41. A clamping turntable 5 is slidably connected to the inner side of the detection connecting frame 4.

[0027] Among them: The test water tank 1 completes water inlet and drainage through the water inlet and outlet hole 11. The detection connecting frame 4 is connected to the support column 2 through two groups of connecting bumps 21. The clamping cylinder 6 is installed and connected to the detection connecting frame 4 through two groups of cylinder mounting blocks 63. The fixed clamping block 41 is used to fix the clamped valve body, and the clamping turntable 5 is used to connect the valve switch and can control the opening and closing of the valve switch.

[0028] As a preferred embodiment, one end of the opening of the detection connecting frame 4 is slidably connected to the two groups of connecting bumps 21 through a rotating shaft. One side of the connecting bump 21 is connected with a rotating motor 22, and the output shaft of the rotating motor 22 is connected to the rotating shaft connected to the detection connecting frame 4; Further, the rotating motor 22 drives the detection connecting frame 4 and the clamping cylinder 6 and the valve body connected thereto to rotate. When the detection connecting frame 4 rotates to the position of 90 degrees, the detection connecting frame 4 and the valve body detected by it are immersed in the water in the test water tank 1.

[0029] As a preferred embodiment, a cylinder telescopic rod 61 is arranged inside the clamping cylinder 6, and a detection clamping block 62 is connected to one end of the cylinder telescopic rod 61 close to the detection connection frame 4. An inflation hole 622 is arranged on one side of the detection clamping block 62, and an inflation structure is formed between the inflation hole 622 and the inflation tank 3 through a pipeline; further, the clamping cylinder 6 drives the cylinder telescopic rod 61 to expand and contract, and during the expansion and contraction process of the cylinder telescopic rod 61, the detection clamping block 62 is driven to approach or move away from the fixed clamping block 41, and the valve body is clamped and fixed by the detection clamping block 62 and the fixed clamping block 41, and the inflation tank 3 can inflate the detection clamping block 62 through the inflation hole 622.

[0030] As a preferred embodiment, plugging gaskets 621 are arranged on the inner sides of both the detection clamping block 62 and the fixed clamping block 41. A plugging air nozzle 623 is arranged at the central position of the detection clamping block 62 close to the fixed clamping block 41, and the plugging air nozzle 623 is communicated with the inflation hole 622; further, both the detection clamping block 62 and the fixed clamping block 41 are inserted into the valve body through the plugging gaskets 621 connected to them respectively, and the plugging connection part is sealed. The gas in the inflation tank 3 leads to the plugging air nozzle 623 through the inflation hole 622, and inflates the valve body through the plugging air nozzle 623. And when there is a leak in the valve, air bubbles will leak out from the leak point, and the leak part can be observed more clearly.

[0031] As a preferred embodiment, an adjustment motor 51 is connected to the side of the clamping turntable 5 away from the detection connection frame 4, and two groups of clamping block chutes 52 are arranged on the side of the clamping turntable 5 away from the adjustment motor 51. Switch clamping blocks 53 are arranged in the clamping block chutes 52; further, the two groups of switch clamping blocks 53 approach or move away from each other in the clamping block chutes 52 to clamp or loosen the switch of the valve, and the adjustment motor 51 drives the clamping turntable 5 to rotate, and the valve switch clamped by the switch clamping blocks 53 can be driven to rotate through the clamping turntable 5, so as to complete the opening and closing of the valve body.

[0032] As a preferred embodiment, a clamping motor 54 is connected to the top of the clamping turntable 5, a lifting lead screw 541 is connected to the output shaft of the clamping motor 54, and the lifting lead screw 541 is inserted into the clamping turntable 5; further, the clamping motor 54 drives the lifting lead screw 541 to rotate.

[0033] As a preferred embodiment, two connection nut seats 542 with opposite threads are connected to the lifting lead screw 541, and a transmission connecting rod 531 is connected between the two groups of switch clamping blocks 53 respectively. The transmission connecting rod 531 is slidably connected to the clamping block chute 52; further, during the rotation of the lifting lead screw 541, the two groups of connection nut seats 542 are driven to approach or move away from each other, and during the movement of the connection nut seats 542, the switch clamping blocks 53 are driven to move through the transmission connecting rod 531.

[0034] The working process of the utility model is as follows: First, the test water tank 1 adds clear water for testing through the water inlet and outlet holes 11. The valve body to be detected can be clamped between the detection clamping block 62 and the fixed clamping block 41. The clamping cylinder 6 drives the cylinder expansion rod 61 to expand and contract. During the expansion and contraction process of the cylinder expansion rod 61, it drives the detection clamping block 62 to approach or move away from the fixed clamping block 41, and the valve body is clamped and fixed by the detection clamping block 62 and the fixed clamping block 41. Both the detection clamping block 62 and the fixed clamping block 41 are inserted into the valve body through the plugging gaskets 621 connected to them respectively, and the plugging connection is sealed.

[0035] After the valve body is fixed, the clamping motor 54 drives the lifting lead screw 541 to rotate. During the rotation process of the lifting lead screw 541, it drives the two connecting nut seats 542 to approach or move away from each other. During the movement of the connecting nut seats 542, they drive the switch clamping block 53 to move through the transmission connecting rod 531, and the two switch clamping blocks 53 approach or move away from each other in the clamping block chute 52 to clamp or loosen the valve switch.

[0036] After the valve is fixed, the rotating motor 22 drives the detection connecting frame 4 and the clamping cylinder 6 and the valve body connected thereto to rotate. When the detection connecting frame 4 rotates to the 90-degree position, the detection connecting frame 4 and the valve body it detects are immersed in the water in the test water tank 1. Then, the gas in the gas charging tank 3 passes through the gas charging hole 622 to the plugging air nozzle 623, and the valve body is inflated through the plugging air nozzle 623. When there is a leak in the valve, bubbles will leak out from the leak point, and the leak location can be observed more clearly. During the detection process, the adjustment motor 51 drives the clamping turntable 5 to rotate, and the valve switch clamped by the switch clamping block 53 can be driven to rotate through the clamping turntable 5, so as to complete the opening and closing of the valve body. The above is the working principle of this kind of ball valve housing sealing pressure test bench.

Claims

1. A sealing pressure test bench for a ball valve housing, comprising a test water tank (1), characterized in that: On one side of the bottom of the test water tank (1), there is a water inlet and outlet hole (11), and on one side of the test water tank (1), there is a support column (2). The top of the support column (2) is connected to an air inflation tank (3), and on one side of the top of the support column (2) close to the test water tank (1), there are two groups of connecting bumps (21). A detection connecting frame (4) is connected between the two groups of connecting bumps (21); The detection connecting frame (4) is in a "U" shape. Inside the opening of the detection connecting frame (4), there is a cylinder mounting block (63). A clamping cylinder (6) is connected between the two groups of cylinder mounting blocks (63) by a buckle. Inside one end of the detection connecting frame (4) away from the clamping cylinder (6), there is a fixed clamping block (41). A clamping turntable (5) is slidably connected inside the detection connecting frame (4).

2. The pressure test bench for the sealing performance of a ball valve housing according to claim 1, wherein: One end of the opening of the detection connecting frame (4) is slidably connected to the two groups of connecting bumps (21) through a rotating shaft. On one side of the connecting bump (21), there is a rotating motor (22), and the output shaft of the rotating motor (22) is connected to the rotating shaft connected to the detection connecting frame (4).

3. A ball valve housing sealing pressure test bench according to claim 1, characterized in that: Inside the clamping cylinder (6), there is a cylinder telescopic rod (61). One end of the cylinder telescopic rod (61) close to the detection connecting frame (4) is connected to a detection clamping block (62). On one side of the detection clamping block (62), there is an inflation hole (622), and an inflation structure is formed between the inflation hole (622) and the air inflation tank (3) through a pipeline.

4. A ball valve housing sealing pressure test bench according to claim 3, characterized in that: Inside the detection clamping block (62) and the fixed clamping block (41), there is a plugging gasket (621). At the center position of the detection clamping block (62) close to the fixed clamping block (41), there is a plugging air nozzle (623), and the plugging air nozzle (623) is communicated with the inflation hole (622).

5. A ball valve housing sealing pressure test bench according to claim 1, characterized in that: On the side of the clamping turntable (5) away from the detection connecting frame (4), there is an adjustment motor (51). On the side of the clamping turntable (5) away from the adjustment motor (51), there are two groups of clamping block chutes (52), and switch clamping blocks (53) are arranged inside the clamping block chutes (52).

6. The pressure test bench for the sealing performance of a ball valve housing according to claim 5, characterized in that: On the top of the clamping turntable (5), there is a clamping motor (54). On the output shaft of the clamping motor (54), there is a lifting lead screw (541), and the lifting lead screw (541) is inserted into the clamping turntable (5).

7. A ball valve housing sealing pressure test bench according to claim 6, characterized in that: On the lifting lead screw (541), there are two groups of connecting nut seats (542) with opposite threads. Between the two groups of switch clamping blocks (53), there is a transmission connecting rod (531), and the transmission connecting rod (531) is slidably connected to the clamping block chute (52).

Images