A working platform for valve body strength testing

Abstract

The utility model discloses a kind of working platform for valve body strength test, including base and test bin being set on base, placing table and the clamping structure for being used to fix valve body are arranged in the test bin, the top of the test bin is provided with electric telescopic link and the free end of electric telescopic link extends to inside;The clamping structure includes support frame and screw rod rotationally arranged in opposite side walls in support frame, the side wall of the test bin is provided with driving motor and power output shaft is connected with screw rod, the side of the support frame is provided with guide slot, the screw rod is provided with two groups of thread group with opposite thread direction, further including two groups of thread block respectively with two groups of thread group screw connection and another end of thread block is penetrated and slidingly arranged in guide slot setting is set in guide slot.The utility model relates to valve body test technical field, specifically provides a kind of working platform for valve body strength test.

Description

Technical Field

[0001] This utility model relates to the field of valve body testing technology, specifically a working platform for valve body strength testing. Background Technology

[0002] The valve body is a pressure-bearing component in a fluid control system used to regulate, cut off, or change the direction of medium flow. The strength test is conducted by applying a test pressure higher than the working pressure to detect whether the valve body has leakage, deformation, or cracking. Currently, valve body strength tests mostly use simple brackets to fix the valve body, pressurize it manually or with an electric pump, and observe the pressure value using a pressure gauge. The test platform is usually an open structure, relying on on-site monitoring by operators.

[0003] Existing strength testing platforms have poor compatibility with valve bodies of different sizes. When changing the test object, the entire clamping components need to be replaced, which is inconvenient for installation and disassembly. In addition, in open testing, if the valve body bursts due to insufficient strength, the fragments can easily fly and cause equipment damage or personnel injury. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing valve body testing platforms are cumbersome for clamping, installing, and disassembling valve bodies of different sizes, and open testing poses a safety hazard if the valve body bursts.

[0005] To solve the above technical problems, the present invention provides the following technical solution: The present invention proposes a working platform for valve body strength testing, including a base and a test chamber set on the base. The test chamber is provided with a placement platform and a clamping structure for fixing the valve body. The top of the test chamber is provided with an electric telescopic rod and the free end of the electric telescopic rod extends into the interior.

[0006] The clamping structure includes a support frame and a screw rotatably mounted on opposite sidewalls within the support frame. A drive motor is mounted on the sidewall of the test chamber, and its power output shaft is connected to the screw. A guide groove is provided on one side of the support frame. The screw has two sets of threads with opposite directions. It also includes two sets of threaded blocks that are threadedly connected to the two sets of threaded blocks respectively. The other end of each threaded block passes through and is slidably mounted in the guide groove. A pressure-holding assembly is provided on the other end of each threaded block and on the free end of the electric telescopic rod. The structure also includes an air compressor mounted on the top of the test chamber. The air compressor is connected to the pressure-holding assembly at the free end of the electric telescopic rod via an air pipe.

[0007] Preferred technical solution 1: The pressure holding assembly includes a positioning plate disposed at one end of the threaded block, and multiple sets of sleeves are disposed on the positioning plate with the central axis of the positioning plate as the center. It also includes a sliding rod slidably disposed at one end of the sleeve, and a mounting plate is disposed at the other end of the sliding rod. Springs are sleeved on the sleeves and the sliding rod, and the two ends of the springs are respectively connected to the positioning plate and the mounting plate. A pressure sensor is also disposed on the positioning plate and is abutted against the mounting plate. A positioning hole is disposed on one side of the mounting plate. It also includes a sealing member, and a positioning post is disposed at one end of the sealing member corresponding to the positioning hole. The mounting plate and the sealing member are magnetically connected. An air nozzle is disposed on the sealing member at one end of the electric telescopic rod and the air nozzle is connected to the air pipe.

[0008] Preferred technical solution 2: The placement platform includes a U-shaped support frame set in the bottom wall of the test chamber. An adjusting sleeve is rotatably installed in the U-shaped support frame, and an adjusting screw is threadedly connected to the adjusting sleeve. The upper end of the adjusting screw passes through the top of the support platform and extends upward. The platform also includes a support platform whose lower end is fixedly connected to the top of the adjusting screw. Guide posts are provided at the four corners of the support platform, and the bottom of the guide posts is slidably installed on the U-shaped support frame.

[0009] Preferred technical solution 3: The top of the support platform is provided with a V-shaped recess, and an anti-slip rubber pad is pasted on the surface of the recess. The surface of the rubber pad is provided with diamond-shaped anti-slip texture to prevent the valve body from sliding during testing.

[0010] Preferred technical solution four: The other end of the threaded block is also connected to a protective rod by bolts. The two sets of protective rods are respectively provided with a transparent protective plate one and a protective plate two. The protective plate one is also provided with a slot and matched with the protective plate two. When the screw drives the threaded block to move relative to each other, the protective plate two is inserted into the slot.

[0011] Preferred technical solution five: A sealed door is hinged to the front of the test chamber, and an observation window is provided on the sealed door. A controller is provided on one side of the test chamber. The pressure sensor, electric telescopic rod, drive motor and pressure sensor are all electrically connected to the controller. A computer is also provided on the base.

[0012] The present invention proposes a working platform for valve body strength testing. The beneficial effects achieved by adopting the above structure are as follows:

[0013] (1) By driving the relative movement of the threaded block through the bidirectional threaded screw, and with the linkage control of the pressure sensor and the controller, the clamping pressure can be automatically adjusted to the preset threshold to achieve precise and automated clamping of valve bodies of different sizes, avoiding the tedious operation of manual adjustment; at the same time, the magnetic connection + positioning column sealing part design facilitates quick replacement to adapt to different valve body interfaces, and the height-adjustable placement platform can adapt to the axial dimension difference of the valve body, greatly simplifying the testing, installation and disassembly process of valve bodies of different specifications, which not only improves the clamping accuracy to avoid damage to the valve body, but also reduces the time for manual intervention;

[0014] (2) When the screw drives the threaded block to move, the second protective plate is inserted into the slot of the first protective plate to achieve immediate protection on the front side of the test; the test chamber is equipped with a sealed door and an observation window to form a closed test space, which can prevent fragments from flying when the valve body bursts. At the same time, the observation window ensures the visualization of the test process, significantly improving the safety of the test process and protecting the operators and surrounding equipment.

[0015] (3) The clamping pressure and valve body force data are collected in real time by pressure sensor, and the air pressure data of air compressor is transmitted to computer in sync. Combined with built-in software, the deformation and stress state of valve body during pressurization process are analyzed. Compared with the traditional qualitative judgment method that only relies on "whether it bursts", the valve body strength performance can be quantitatively analyzed. At the same time, the controller automatically controls the clamping position and the computer records the data in real time. This not only avoids the error of manual reading, but also retains the test data for easy traceability, providing a scientific basis for the valve body strength qualification judgment and improving the reliability and professionalism of the test results. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This utility model presents an overall structural diagram of a working platform for valve body strength testing. Figure 1 ;

[0018] Figure 2 This utility model presents an overall structural diagram of a working platform for valve body strength testing. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of a working platform for valve body strength testing proposed in this utility model;

[0020] Figure 4 This is a partial schematic diagram of a working platform for testing valve body strength proposed in this utility model.

[0021] The components are as follows: 1. Base, 2. Test chamber, 3. Electric telescopic rod, 4. Support frame, 5. Screw, 6. Drive motor, 7. Threaded block, 8. Air compressor, 9. Positioning plate, 10. Sleeve, 11. Slide rod, 12. Mounting plate, 13. Spring, 14. Positioning hole, 15. Sealing component, 16. U-shaped support frame, 17. Adjusting sleeve, 18. Adjusting screw, 19. Support platform, 20. Protective rod, 21. Protective plate one, 22. Protective plate two, 23. Sealing door, 24. Controller, 25. Computer. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0024] Example 1

[0025] like Figures 1-4 As shown, the technical solution adopted by this utility model is as follows: A working platform for valve body strength testing includes a base 1 and a test chamber 2 set on the base 1. The test chamber 2 is provided with a placement platform and a clamping structure for fixing the valve body. An electric telescopic rod 3 is provided on the top of the test chamber 2, and the free end of the electric telescopic rod 3 extends into the interior. The clamping structure includes a support frame 4 and a screw 5 rotatably set on opposite side walls inside the support frame 4. A drive motor 6 is provided on the side wall of the test chamber 2, and the power output shaft is connected to the screw 5. A guide groove is provided on one side of the support frame 4. Two sets of threaded groups with opposite thread directions are provided on the screw 5. It also includes two sets of threaded blocks 7 that are threadedly connected to the two sets of threaded groups respectively. The other end of the threaded block 7 passes through and slides in the guide groove. A pressing component is provided on the other end of the threaded block 7 and the free end of the electric telescopic rod 3. It also includes an air compressor 8 set on the top of the test chamber 2. The air compressor 8 is connected to the pressing component at the free end of the electric telescopic rod 3 through an air pipe.

[0026] like Figure 3 and Figure 4As shown, the clamping assembly includes a positioning plate 9 disposed at one end of the threaded block 7, and multiple sets of sleeves 10 disposed on the positioning plate 9 with the central axis of the positioning plate 9 as the center. It also includes a sliding rod 11 slidably disposed at one end of the sleeve 10, and a mounting plate 12 disposed at the other end of the sliding rod 11. Springs 13 are fitted onto the sleeves 10 and the sliding rod 11, with both ends of the springs 13 connected to the positioning plate 9 and the mounting plate 12 respectively. The springs 13 are cylindrical helical compression springs with a natural length of 40mm and a working compression of 10-20mm, ensuring a tight fit during clamping without damaging the valve body. A pressure sensor is also disposed on the positioning plate 9 and is abutted against the mounting plate 12. The pressure sensor is fixed to the positioning plate 9 by two sets of M5 countersunk bolts facing the mounting plate 12. On one side of the mounting plate 12, a 0.1mm thick copper foil gasket is provided between the sensor detection surface and the mounting plate 12 to ensure accurate pressure transmission. In order to facilitate the replacement of the sealing component 15 according to the valve body size, a positioning hole 14 is provided on one side of the mounting plate 12, which also includes the sealing component 15. One end of the sealing component 15 is provided with a positioning post corresponding to the positioning hole 14. The mounting plate 12 and the sealing component 15 are connected by magnetic attraction. An air nozzle is provided on the sealing component 15 at one end of the electric telescopic rod 3, and the air nozzle is connected to the air pipe to pressurize the inside of the valve body for strength testing. The air nozzle of the sealing component 15 at the end of the electric telescopic rod 3 is made of brass and is connected to the air pipe through a quick-connect fitting. An O-ring is provided between the air nozzle and the sealing component 15 to prevent air leakage.

[0027] Example 2

[0028] Based on Example 1, such as Figure 3 As shown, the placement platform includes a U-shaped support frame 16 installed on the bottom wall of the test chamber 2. An adjusting sleeve 17 rotates within the U-shaped support frame 16, and an adjusting screw 18 is threadedly connected to the adjusting sleeve 17. The upper end of the adjusting screw 18 passes through the top of the support platform 19 and extends upwards. The platform also includes a support platform 19 whose lower end is fixedly connected to the top of the adjusting screw 18. Guide posts are provided at the four corners of the support platform 19, and the bottom of the guide posts slides through the U-shaped support frame 16. By rotating the adjusting sleeve 17, the adjusting screw 18 moves up and down, achieving height adjustment of the support platform 19 to accommodate different valve bodies and sealing components 15 on both sides for sealing tests. A V-shaped recess is provided on the top of the support platform 19, with an angle of 90°-120°. An anti-slip rubber pad is attached to the surface of the recess, with a diamond-shaped anti-slip texture to prevent the valve body from sliding during testing. The other end of the threaded block 7 is also connected to a protective rod 20 by bolts. The two sets of protective rods 20 are respectively provided with a transparent protective plate 1 21 and a protective plate 22. The protective plate 1 21 is also provided with a slot and is matched with the protective plate 22. When the screw 5 drives the threaded block 7 to move relative to each other, the protective plate 22 is inserted into the slot to achieve front protection.

[0029] The test chamber 2 is hinged to a sealing door 23 with an observation window. A controller 24 is located on one side of the test chamber 2. Pressure sensors, an electric telescopic rod 3, a drive motor 6, and other components are electrically connected to the controller 24. A computer 25 is mounted on the base 1. When the valve body is clamped, the controller 24 controls the drive motor 6 to operate until the pressure values ​​detected by the pressure sensors on both sides reach the preset clamping threshold, indicating that the clamping is in place, and then stops the drive motor 6. During the test, the computer 25 collects real-time data from the pressure sensors and the air pressure data from the air compressor 8. Through built-in software, it analyzes the deformation and stress state of the valve body during the pressurization process to determine whether its strength is up to standard.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A working platform for valve body strength testing, comprising a base (1) and a test chamber (2) disposed on the base (1), characterized in that: The test chamber (2) is provided with a placement platform and a clamping structure for fixing the valve body. The top of the test chamber (2) is provided with an electric telescopic rod (3) and the free end of the electric telescopic rod (3) extends into the interior. The clamping structure includes a support frame (4) and a screw (5) rotatably disposed on opposite side walls inside the support frame (4). A drive motor (6) is provided on the side wall of the test chamber (2), and the power output shaft is connected to the screw (5). A guide groove is provided on one side of the support frame (4). Two sets of threaded groups with opposite thread directions are provided on the screw (5). It also includes two sets of threaded blocks (7) that are threadedly connected to the two sets of threaded groups respectively. The other end of the threaded block (7) passes through and slides in the guide groove. A pressing component is provided on the other end of the threaded block (7) and the free end of the electric telescopic rod (3). It also includes an air compressor (8) disposed on the top of the test chamber (2). The air compressor (8) is connected to the pressing component at the free end of the electric telescopic rod (3) through an air pipe.

2. The working platform for valve body strength testing according to claim 1, characterized in that: The pressing assembly includes a positioning plate (9) disposed at one end of the threaded block (7), and multiple sets of sleeves (10) are disposed on the positioning plate (9) with the central axis of the positioning plate (9) as the center. It also includes a sliding rod (11) slidably disposed at one end of the sleeve (10). The other end of the sliding rod (11) is provided with a mounting plate (12). Springs (13) are sleeved on the sleeves (10) and the sliding rod (11), and the two ends of the springs (13) are respectively connected to the positioning plate (9) and the mounting plate (12). The positioning plate (9) is also provided with a pressure sensor and is abutted against the mounting plate (12). The mounting plate (12) is provided with a positioning hole (14) on one side and also includes a sealing member (15). One end of the sealing member (15) is provided with a positioning post corresponding to the positioning hole (14). The mounting plate (12) and the sealing member (15) are connected by magnetic attraction. The sealing member (15) at one end of the electric telescopic rod (3) is provided with an air nozzle and the air nozzle is connected to the air pipe.

3. The working platform for valve body strength testing according to claim 2, characterized in that: The placement platform includes a U-shaped support frame (16) set in the bottom wall of the test chamber (2), an adjusting sleeve (17) is rotatably installed in the U-shaped support frame (16), and an adjusting screw (18) is threadedly connected in the adjusting sleeve (17). The upper end of the adjusting screw (18) passes through the top of the support platform (19) and extends upwards. The platform also includes a support platform (19) whose lower end is fixedly connected to the top of the adjusting screw (18). Guide posts are provided at the four corners of the support platform (19), and the bottom of the guide posts is slidably installed on the U-shaped support frame (16).

4. The working platform for valve body strength testing according to claim 3, characterized in that: The top of the support platform (19) is provided with a V-shaped recessed platform, and an anti-slip rubber pad is pasted on the surface of the recessed platform. The surface of the rubber pad is provided with a diamond-shaped anti-slip pattern.

5. A working platform for valve body strength testing according to claim 4, characterized in that: The other end of the threaded block (7) is also connected to a protective rod (20) by bolts. The two sets of protective rods (20) are respectively provided with a transparent protective plate one (21) and a protective plate two (22). The protective plate one (21) is also provided with a slot that matches the protective plate two (22).

6. A working platform for valve body strength testing according to claim 5, characterized in that: A sealing door (23) is hinged to the front of the test chamber (2), and an observation window is provided on the sealing door (23). A controller (24) is provided on one side of the test chamber (2). The pressure sensor, electric telescopic rod (3), drive motor (6) and pressure sensor are all electrically connected to the controller (24). A computer (25) is also provided on the base (1).

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