High-efficiency valve sealing performance detection device

Abstract

The utility model relates to the technical field of valve detection, in particular to a high-efficiency valve sealing performance detection device, which comprises a box body, a sliding block connected onto the box body in a sliding manner, a support mounted on the sliding block, a bottom plate mounted at the bottom end of the support, a guide rail fixedly connected onto the bottom plate, a sliding seat connected onto the guide rail in a sliding manner, and a bracket connected into the sliding seat in a sliding manner, the sliding seat is in threaded connection with a first rotary knob, the end of the first rotary knob abuts against the bracket, the sliding seat is in threaded connection with a second rotary knob, the end, facing the guide rail, of the second rotary knob is rotationally connected with an abutting block, and the abutting block abuts against the guide rail. The air outlet end of the air injection pipe is connected with one clamp. The horizontal position of the bracket is adjusted by sliding the sliding seat on the guide rail, and the height of the bracket is adjusted by sliding the bracket in the sliding seat, so that the bracket is adaptive to valves with different lengths or diameters, and the bracket can conveniently and rapidly perform preliminary positioning on the valves with different specifications.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically a high-efficiency valve sealing testing device, belonging to the field of valve testing technology. Background Technology

[0002] A valve sealing test device is used to check whether a valve leaks under a specific pressure. It is widely used in industrial manufacturing, petrochemical, gas transmission and other fields. Its core function is to apply pressure (pneumatic or hydraulic) to the valve through precise pressure control and reliable sealing clamping, and then simulate actual working conditions to detect the leakage of the sealing surface, so as to ensure that the valve quality meets the standards. When the valve is fixed by two clamps, one end of the valve needs to be pressed against one of the clamps and the other end of the valve needs to be supported on the bracket below the valve. The bracket supports the valve and keeps the other end of the valve balanced. Then, the cylinder pushes the other clamp to press against the valve, thereby achieving valve fixing and sealing.

[0003] However, the bracket height of traditional valve sealing test devices is usually fixed, which is not convenient to adapt to valves of different specifications (such as diameter and length). Therefore, the bracket has poor versatility. When supporting valves of different specifications, the valve position is tilted due to the mismatch of bracket height. This can lead to uneven force or poor sealing when the other clamp pushed by the cylinder presses against the valve. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency valve sealing performance testing device to solve the above-mentioned problems. By sliding the slide block on the guide rail, the horizontal position of the bracket can be adjusted to adapt the bracket to valves of different lengths. Furthermore, by sliding the bracket on the slide block, the height of the bracket can be quickly adjusted. The operation is flexible and convenient, and the bracket can be adapted to valves of different diameters. This allows the cylinder-driven clamp to accurately press against the valve, preventing uneven force and inadequate sealing between the valve and the clamp due to valve tilting. This further improves the accuracy and reliability of valve sealing performance testing.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a high-efficiency valve sealing performance testing device, comprising a housing, a slider slidably connected to the housing, a bracket mounted on the slider, a base plate mounted at the bottom of the bracket, a support structure mounted on the base plate, the support structure including a guide rail, a guide rail fixedly connected to the base plate, a slide block slidably connected to the guide rail, a bracket slidably connected inside the slide block, a first knob threadedly connected to the slide block, the end of the first knob abutting against the bracket, a second knob threadedly connected to the slide block, the second knob rotating toward one end of the guide rail and connected to a stop block, the stop block abutting against the guide rail, two clamps mounted on the bracket via an installation structure, an air injection pipe mounted on the housing, the air outlet end of the air injection pipe connected to one of the clamps, and a water tank mounted on the housing.

[0006] Preferably, the slide block has an L-shaped cross-section, and the top of the bracket has an arc-shaped structure.

[0007] Preferably, the mounting structure includes a cylinder, with the cylinder mounted on one side of the bracket, and a fixing rod fixedly connected to the extended end of the cylinder and the other side of the bracket, with the two fixing rods respectively inserted into two clamps.

[0008] Preferably, a locking block is slidably connected inside the fixing rod, and a locking groove is provided on the clamp, wherein the locking block engages with the locking groove.

[0009] Preferably, the fixing rod is provided with a spring, one end of the spring is fixedly connected to the fixing rod, and the other end of the spring is fixedly connected to the locking block.

[0010] Preferably, a push rod is fixedly connected to the end of the card block away from the card slot, and the push rod is slidably connected to the fixed rod.

[0011] Preferably, the end of the card block that engages with the card slot has an inclined structure, and a sealing gasket is installed on the clamp.

[0012] Preferably, a lead screw is rotatably connected inside the housing, and the slider is threadedly connected to the lead screw.

[0013] Preferably, a commutator motor is installed inside the housing, and the output shaft of the commutator motor is fixedly connected to the top end of the lead screw.

[0014] The beneficial effects of this utility model are as follows: A guide rail is fixedly connected to the base plate, a slide block is slidably connected to the guide rail, a bracket is slidably connected inside the slide block, a first knob is threadedly connected to the slide block, the end of the first knob abuts against the bracket, and a second knob is threadedly connected to the slide block, the second knob rotating toward one end of the guide rail to connect to a stop block, the stop block abuts against the guide rail. By sliding the slide block on the guide rail, the horizontal position of the bracket can be adjusted, allowing the bracket to adapt to valves of different lengths. Furthermore, by sliding the bracket on the slide block, the height of the bracket can be quickly adjusted, making the operation flexible and convenient. It also allows the bracket to adapt to valves of different diameters, enabling the cylinder-driven clamp to precisely clamp the valve, preventing uneven force and inadequate sealing between the valve and the clamp due to valve tilting, further improving the accuracy and reliability of valve sealing detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0017] Figure 3 This is a schematic diagram of the connection structure between the lead screw and the slider of this utility model;

[0018] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0019] Figure 5 This is a schematic diagram of the connection structure between the cylinder and the fixed rod of this utility model;

[0020] Figure 6 for Figure 5 The diagram shows an enlarged view of section C.

[0021] In the diagram: 1. Box body; 2. Slider; 3. Bracket; 4. Base plate; 5. Support structure; 501. Guide rail; 502. Slide block; 503. Bracket; 504. First knob; 505. Second knob; 506. Abutment block; 6. Mounting structure; 601. Cylinder; 602. Fixing rod; 603. Locking block; 604. Locking groove; 605. Spring; 606. Push rod; 7. Clamp; 8. Air injection pipe; 9. Sealing gasket; 10. Lead screw; 11. Reversing motor; 12. Water tank. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 As shown, a high-efficiency valve sealing performance testing device includes a housing 1, a slider 2 slidably connected to the housing 1, a bracket 3 mounted on the slider 2, a base plate 4 mounted at the bottom end of the bracket 3, a support structure 5 mounted on the base plate 4, the support structure 5 including a guide rail 501, the guide rail 501 fixedly connected to the base plate 4, a slide block 502 slidably connected to the guide rail 501, a bracket 503 slidably connected inside the slide block 502, and a threaded connection to the slide block 502. A knob 504 is provided, the end of which abuts against the bracket 503. A second knob 505 is threadedly connected to the slide 502. The second knob 505 is rotatably connected to a stop block 506 at one end facing the guide rail 501. The stop block 506 abuts against the guide rail 501. Two clamps 7 are mounted on the bracket 3 via the mounting structure 6. An air injection pipe 8 is mounted on the housing 1. The air outlet of the air injection pipe 8 is connected to one of the clamps 7. A water tank 12 is mounted on the housing 1.

[0024] As a technical optimization of this utility model, the slide block 502 has an overall L-shaped cross-section, and the top of the bracket 503 has an arc-shaped structure so that the top of the bracket 503 fits the valve better, thereby facilitating the bracket 503 to support the valve.

[0025] As a technical optimization of this utility model, the installation structure 6 includes a cylinder 601. The cylinder 601 is installed on one side of the bracket 3. The extended end of the cylinder 601 and the other side of the bracket 3 are both fixedly connected to a fixing rod 602. The two fixing rods 602 are respectively inserted into two clamps 7. A sealing gasket 9 is installed on the clamp 7. The valve is fixed by the two clamps 7 and the sealing gasket 9 seals both ends of the valve, so that the valve forms a closed cavity during testing, which facilitates the filling of gas to detect its leakage.

[0026] As a technical optimization of this utility model, a locking block 603 is slidably connected inside the fixing rod 602, and a locking groove 604 is provided on the clamp 7. The locking block 603 engages with the locking groove 604. A spring 605 is provided inside the fixing rod 602. One end of the spring 605 is fixedly connected to the fixing rod 602, and the other end of the spring 605 is fixedly connected to the locking block 603. The end of the locking block 603 that engages with the locking groove 604 has an inclined structure. By engaging the locking block 603 on the fixing rod 602 with the locking groove 604 on the clamp 7, the clamp 7 is easy to install and disassemble, and it is convenient to replace the clamp 7 with a suitable one according to the valve of different diameters. A push rod 606 is fixedly connected to the end of the locking block 603 that is away from the locking groove 604. The push rod 606 is slidably connected to the fixing rod 602. The setting of the push rod 606 facilitates the operation of the locking block 603.

[0027] As a technical optimization of this utility model, a lead screw 10 is rotatably connected inside the housing 1, and the slider 2 is threadedly connected to the lead screw 10. A reversing motor 11 is installed inside the housing 1, and the output shaft of the reversing motor 11 is fixedly connected to the top end of the lead screw 10. The reversing motor 11 drives the lead screw 10 to rotate, and the lead screw 10 rotates while the slider 2 is threadedly driven to slide downward. Thus, the slider 2 slides downward and drives the valve to enter the water in the water tank 12 for testing.

[0028] In use, when the height of the bracket 503 needs to be adjusted according to the valve diameter, the bracket 503 is slid on the slide block 502. After the bracket 503 is adjusted to the appropriate position, the first knob 504 is tightened so that the end of the first knob 504 abuts against the outer wall of the bracket 503, thereby preventing the bracket 503 from sliding further. This allows the height of the bracket 503 to be flexibly adjusted, further adapting the height of the bracket 503 to the diameter of the valve to be tested. When the horizontal position of the bracket 503 needs to be adjusted according to the valve length, the slide block 502 is pushed on the guide rail 502. Slide the slide block 502 upwards to quickly adjust the horizontal position of the bracket 503. Once the bracket 503 is adjusted to the appropriate position, tighten the second knob 505. The second knob 505 drives the abutment 506 to move inwards towards the guide rail 501 until the abutment 506 presses against the inner wall of the guide rail 501, thereby fixing the slide block 502. This completes the horizontal position adjustment of the bracket 503. Therefore, by adjusting the horizontal position and height of the bracket 503, it can be adapted to valves of different lengths or diameters, making the positioning of the bracket 503 more precise and preventing... To prevent problems such as poor sealing and uneven force distribution between the clamp 7 and the valve caused by valve tilting, the valve to be tested is then fixed in place using two clamps 7 for easy testing. During operation, one end of the valve is pressed against the clamp 7 facing away from the cylinder 601, and the other end of the valve is placed on the bracket 503 for support. Then, the cylinder 601 is activated, and its extended end pushes the connected fixing rod 602, along with the clamps 7, towards the valve. This gradually clamps the valve between the clamps 7, while the sealing gaskets 9 on the clamps 7 ensure a tight seal. The result is that the valve forms a closed cavity during testing, which facilitates the filling of gas to detect its leakage. Then, the reversing motor 11 is started, which drives the lead screw 10 to rotate. The lead screw 10 drives the slider 2 to slide downward on the housing 1. As the slider 2 slides downward, it drives the valve fixed between the two clamps 7 to move downward until the valve is immersed in the water in the water tank 12. Gas is introduced into the clamp 7 through the air injection pipe 8. The gas enters the valve through the air outlet on the clamp 7. At this time, the sealing performance and leakage location of the valve are judged by observing whether bubbles are generated and the pressure gauge changes.When it is necessary to test a valve with a diameter larger than that of the current clamp 7, the original clamp 7 can be removed and replaced with a clamp 7 adapted to the valve to be tested. During operation, press the push rod 606. The push rod 606 drives the locking block 603 to disengage from the locking groove 604. The locking block 603 slides while driving the spring 605 to compress, thereby quickly releasing the limit on the clamp 7. Then, remove the clamp 7 from the fixing rod 602 and install the new clamp 7. During installation, align the clamp 7 with the fixing rod 602 and move it towards... The clamp 7 moves in the direction of the fixed rod 602. Because the end of the locking block 603 has a beveled structure that provides guidance, when the inner wall of the clamp 7 contacts the locking block 603, the clamp 7 slides against the locking block 603 towards the interior of the fixed rod 602. When the locking groove 604 on the clamp 7 aligns with the locking block 603, the spring 605 resets and drives the locking block 603 to engage with the locking groove 604, thus quickly installing the clamp 7. The operation is simple, convenient, and flexible, improving the ease of disassembly and replacement of the clamp 7.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency valve sealing performance testing device, comprising a housing (1), characterized in that: A slider (2) is slidably connected to the housing (1). A bracket (3) is mounted on the slider (2). A base plate (4) is mounted on the bottom end of the bracket (3). A support structure (5) is mounted on the base plate (4). The support structure (5) includes a guide rail (501). The guide rail (501) is fixedly connected to the base plate (4). A slide block (502) is slidably connected to the guide rail (501). A bracket (503) is slidably connected inside the slide block (502). A first knob (504) is threaded onto the slide block (502). The end of the knob (504) abuts against the bracket (503). A second knob (505) is threaded onto the slide (502). The second knob (505) is rotated toward one end of the guide rail (501) and connected to a stop block (506). The stop block (506) abuts against the guide rail (501). Two clamps (7) are installed on the bracket (3) through the mounting structure (6). An air injection pipe (8) is installed on the box (1). The air outlet end of the air injection pipe (8) is connected to one of the clamps (7). A water tank (12) is installed on the box (1).

2. The high-efficiency valve sealing performance testing device according to claim 1, characterized in that: The slide (502) has an "L" shaped cross-section, and the top of the bracket (503) has an arc-shaped structure.

3. The high-efficiency valve sealing performance testing device according to claim 1, characterized in that: The mounting structure (6) includes a cylinder (601). The cylinder (601) is mounted on one side of the bracket (3). The extended end of the cylinder (601) is fixedly connected to a fixing rod (602) on the other side of the bracket (3). The two fixing rods (602) are respectively inserted into two clamps (7).

4. The high-efficiency valve sealing performance testing device according to claim 3, characterized in that: A locking block (603) is slidably connected inside the fixing rod (602), and a slot (604) is provided on the clamp (7), and the locking block (603) engages with the slot (604).

5. The high-efficiency valve sealing performance testing device according to claim 4, characterized in that: The fixing rod (602) is provided with a spring (605), one end of the spring (605) is fixedly connected to the fixing rod (602), and the other end of the spring (605) is fixedly connected to the locking block (603).

6. The high-efficiency valve sealing performance testing device according to claim 5, characterized in that: The end of the card block (603) facing away from the card slot (604) is fixedly connected to a push rod (606), and the push rod (606) is slidably connected to the fixed rod (602).

7. The high-efficiency valve sealing performance testing device according to claim 6, characterized in that: The end of the card block (603) that engages with the card slot (604) has an inclined structure, and a sealing gasket (9) is installed on the clamp (7).

8. The high-efficiency valve sealing performance testing device according to claim 1, characterized in that: The housing (1) is rotatably connected to a lead screw (10), and the slider (2) is threadedly connected to the lead screw (10).

9. The high-efficiency valve sealing performance testing device according to claim 8, characterized in that: The housing (1) is equipped with a commutator motor (11), and the output shaft of the commutator motor (11) is fixedly connected to the top end of the lead screw (10).

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