Adjustable valve assembly press

Abstract

The present application relates to the technical field of valve, disclose a kind of adjustable valve assembly press device, including lifting workbench, the top of the lifting workbench is equipped with platform base, the end surface of the platform base is equipped with several sets of cylinder base and first press clamp plate, the top of the cylinder is equipped with manual reversing valve, the other end of the platform base is rotatably connected with threaded rod one, one end of the support frame is equipped with lifting assembly, the top of the lifting assembly is equipped with valve body, the other end of the support frame is rotatably connected with threaded rod two, one end of the moving frame is equipped with second press clamp plate, the other end of the moving frame is equipped with transparent bucket. By lifting assembly being installed on support frame, rotating threaded rod two, moving frame drives sealing ring to contact the outer wall of one end of valve body, valve body is fixed on support frame;Again rotate threaded rod one, support frame drives valve body to contact the outer wall of first press clamp plate, valve body is fixed, achieve the effect of convenient valve body installation detection.

Description

Technical Field

[0001] This invention relates to the field of valve technology, specifically to an adjustable valve assembly pressure testing device. Background Technology

[0002] As a key control component in fluid transport pipeline systems, the sealing performance of valves is one of the most critical technical indicators for evaluating valve quality, directly affecting the safe operation of the pipeline system and the control of media leakage. In the valve manufacturing process, it is usually necessary to first assemble the components, and then conduct a sealing performance test on the assembled valve to ensure product qualification.

[0003] Currently, traditional valve assembly operations often involve laying the valve body flat on a regular workbench or placing it directly on a rubber mat on the ground. Operators must manually support the valve body while it is not properly secured and install the valve seat, valve core, sealing ring, valve stem, valve cover, and other components in sequence before finally tightening the fasteners.

[0004] The inventors of this application discovered in their research that the core defect of the aforementioned prior art is that the valve body lacks a dedicated positioning and clamping device, which makes it prone to displacement or rotation during assembly, affecting the accuracy of fastener torque control and thus reducing assembly quality. Summary of the Invention

[0005] This invention provides an inventive device that solves the problem that valve bodies lack a dedicated positioning and clamping device, making them prone to displacement and rotation during assembly, affecting the accuracy of fastener torque control, and reducing assembly quality, thereby achieving real-time online detection after assembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable valve assembly and pressure testing device, comprising a lifting worktable, a platform base mounted on the top of the lifting worktable, several sets of cylinder bases and a first pressure testing clamp mounted on the end face of the platform base, a cylinder mounted on the top of the cylinder base, a manual reversing valve mounted on the top of the cylinder, a threaded rod rotatably connected to the other end of the platform base, a support frame slidably connected to the other end of the platform base, a lifting assembly mounted on one end of the support frame, a valve body mounted on the top of the lifting assembly, a threaded rod rotatably connected to the other end of the support frame, a movable frame slidably connected to the other end of the support frame, a second pressure testing clamp mounted on one end of the movable frame, and a transparent water bucket mounted on the other end of the movable frame.

[0007] By adopting the above technical solution: the lifting assembly is installed on the support frame and located between the first and second pressure clamps, so that the valve body can be aligned with the center connection line of the first and second pressure clamps. By rotating the second threaded rod, the moving frame is driven to contact one end of the outer wall of the sealing ring, so that the valve body is fixed on the support frame. Then, the first threaded rod is rotated, so that the support frame drives the valve body to contact the outer wall of the first pressure clamp, so that the valve body is fixed between the first pressure clamp and the valve body, thereby achieving the effect of facilitating valve body installation.

[0008] Preferably, the lifting assembly includes a first lifting frame and a second lifting frame, which are slidably connected to the outer wall of the support frame. The inner wall of the support frame is rotatably connected to a plurality of threaded rods, and a bevel gear is installed at the bottom end of each threaded rod. The outer wall of the support frame is equipped with a plurality of stabilizing rods. The bottom inner wall of the support frame is rotatably connected to two connecting rods and a transmission rod. A transmission bevel gear and a bevel gear three are respectively installed at both ends of the connecting rods, and a bevel gear two is installed at both ends of the transmission rod.

[0009] Preferably, the plurality of bevel gears one are respectively meshed and connected to the tooth ends of the transmission bevel gear and bevel gear three, and the bevel gear two is meshed and connected to the tooth end of the transmission bevel gear.

[0010] Preferably, the plurality of threaded rods are respectively threaded to the inner walls of both sides of the first lifting frame and the second lifting frame, and the plurality of threaded rods are respectively slidably connected to the inner walls of both sides of the first lifting frame and the second lifting frame.

[0011] Preferably, the threaded rod is threaded to the inner wall of the bottom end of the movable frame, and the second pressure clamp is slidably connected to the outer wall of the valve body.

[0012] Preferably, the threaded rod is threaded to the inner wall of the bottom end of the support frame, and the valve body is slidably connected to the outer wall of the first pressure clamp.

[0013] Preferably, sealing gaskets are provided on both sides of the valve body, and multiple sealing rings are provided at one end of the first and second pressure clamps, with the multiple sealing rings slidably connected to the outer wall of the sealing gasket.

[0014] Preferably, the bottom end of the movable frame is rotatably connected to a plurality of pulleys, and the plurality of pulleys are slidably connected to the outer wall of the support frame.

[0015] Preferably, the manual reversing valve adopts a three-position four-way structure and is connected to a main air inlet pipe, an exhaust port, a first air outlet pipe and a second air outlet pipe. A pressure reducing valve is installed at one end of the main air inlet pipe, and the air inlet of the pressure reducing valve is connected to an external air source.

[0016] Preferably, the cylinder body is provided with a first cylinder inlet and a second cylinder inlet, which are respectively connected to a first outlet pipe and a second outlet pipe. A piston rod is provided at one end of the cylinder and is connected to a first pressure clamping plate. A first vent hole is provided at one end of the first pressure clamping plate and a first air source branch pipe is installed at its outer end. A second vent hole is provided at one end of the second pressure clamping plate and a second air source branch pipe is installed at the outer end of the second vent hole, so that the bottom end of the second air source branch pipe is installed in a transparent water bucket.

[0017] This invention provides an adjustable valve assembly pressure testing device. It has the following advantages:

[0018] 1. The present invention uses a lifting assembly mounted on a support frame. By rotating the second threaded rod, the moving frame causes the sealing ring to contact the outer wall of one end of the valve body, thus fixing the valve body on the support frame. Then, by rotating the first threaded rod, the support frame causes the valve body to contact the outer wall of the first pressure clamp, thus fixing the valve body and achieving the effect of facilitating valve body installation and testing.

[0019] 2. This invention integrates valve assembly and sealing test stations into one unit. After assembly, the valve can be pressure tested without moving it. If it passes the test, it can be taken off the production line directly. If it fails the test, it can be repaired immediately. This eliminates the waiting time for process transfer, shortens the production cycle, and improves the utilization rate of the site.

[0020] 3. This invention uses the transparent water bucket bubble method to detect sealing performance. The principle is simple and reliable, requires no precision instruments, and the results are intuitive. It is suitable for rapid batch testing on the production site, and the compressed air used is clean and pollution-free. Attached Figure Description

[0021] Figure 1 This is an overall perspective view of the present invention;

[0022] Figure 2 This is an overall cross-sectional view of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a cross-sectional view of part of the transmission structure of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view at point B in the middle;

[0026] Figure 6 This is a cross-sectional view of the lifting structure of the present invention;

[0027] Figure 7 This is an exploded view of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle.

[0029] The components include: 1. Lifting worktable; 2. Platform base; 3. Cylinder base; 4. Cylinder; 5. Manual directional valve; 6. Pressure reducing valve; 7. First pressure clamp; 8. Support frame; 9. Threaded rod one; 10. Threaded rod two; 11. Moving frame; 12. Transparent water bucket; 13. Pulley; 14. Second pressure clamp; 15. Lifting assembly; 1501. First lifting frame; 1502. Threaded rod three; 1503. Stabilizing rod; 1504. Bevel gear one; 1505. Connecting rod; 1506. Transmission bevel gear; 1507. Transmission rod; 1508. Bevel gear two; 1509. Bevel gear three; 1510. Second lifting frame; 16. Valve body; 17. Sealing ring; 18. Sealing gasket. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see the appendix Figure 1 -Appendix Figure 8This invention provides an adjustable valve assembly and pressure testing device, including a lifting worktable 1. A platform base 2 is mounted on the top of the lifting worktable 1. Several sets of cylinder bases 3 and a first pressure testing clamp 7 are mounted on the end face of the platform base 2. Cylinders 4 are mounted on the top of two cylinder bases 3, and a manual reversing valve 5 is mounted on the top of each cylinder 4. A threaded rod 9 is rotatably connected to the other end of the platform base 2, and a support frame 8 is slidably connected to the other end of the platform base 2. A lifting assembly 15 is mounted on one end of the support frame 8, and a valve body 16 is mounted on the top of the lifting assembly 15. A threaded rod 10 is rotatably connected to the other end of the support frame 8, and a movable frame 11 is slidably connected to the other end of the support frame 8. A second pressure testing clamp 14 is mounted on one end of the movable frame 11, and a transparent water bucket 12 is mounted on the other end of the movable frame 11. The threaded rod 10 is threadedly connected to the inner wall of the bottom end of the movable frame 11, the second pressure testing clamp 14 is slidably connected to the outer wall of the valve body 16, and the threaded rod 9 is threadedly connected to the inner wall of the bottom end of the support frame 8. The valve body 16 is slidably connected to the outer wall of the first pressure clamp 7. Sealing gaskets 18 are provided on both sides of the valve body 16. Multiple sealing rings 17 are provided at one end of both the first pressure clamp 7 and the second pressure clamp 14. These sealing rings 17 are slidably connected to the outer wall of the sealing gaskets 18. The manual reversing valve 5 adopts a three-position four-way structure and is connected to a main air inlet pipe, an exhaust port, a first air outlet pipe, and a second air outlet pipe. A pressure reducing valve 6 is installed at one end of the main air inlet pipe, and the air inlet of the pressure reducing valve 6 is connected to an external air source. Cylinder 4... The cylinder body is provided with a first cylinder inlet and a second cylinder inlet, which are respectively connected to a first outlet pipe and a second outlet pipe. A piston rod is provided at one end of the cylinder 4, and the piston rod is connected to a first pressure clamping plate 7. A first vent hole is opened at one end of the first pressure clamping plate 7, and a first air source branch pipe is installed at its outer end. A second vent hole is opened at one end of the second pressure clamping plate 14, and a second air source branch pipe is installed at the outer end of the second vent hole, so that the bottom end of the second air source branch pipe is installed in the transparent water bucket 12.

[0032] Specifically, platform base 2 is placed on the upper surface of lifting worktable 1, and its position can be adjusted according to the height of lifting worktable 1 to adapt to the working plane requirements of different testing conditions. Cylinder base 3 is installed above platform base 2 with fasteners, providing a support base for cylinder 4. Cylinder 4 is fixedly installed on cylinder base 3, and manual reversing valve 5 is fixedly installed on the side of cylinder body of cylinder 4. This valve adopts a three-position four-way structure design, and its valve body is provided with a main air inlet pipe for connecting to an external compressed air source, an exhaust port for discharging gas, and a first exhaust pipe and a second exhaust pipe for controlling different directions of action. The main air inlet pipe is connected to the outlet of a pressure reducing valve 6 through a pipeline, and the inlet of pressure reducing valve 6 is used to connect to an external air source pipeline. Its main function is to regulate and stabilize the air pressure in the input system to ensure the accuracy and safety of the test pressure. On the cylinder body of cylinder 4, there are two interfaces: a first cylinder inlet and a second cylinder inlet. The first cylinder's air inlet is connected to the first air outlet of the manual directional valve 5 via an air pipe, while the second cylinder's air inlet is connected to the second air outlet of the manual directional valve 5. The cylinder 4 contains a piston rod capable of reciprocating motion. The end of the piston rod is fixedly mounted with a first pressure clamp 7 via a connector, thus converting the linear motion of the cylinder into the clamping action of the clamp. The manual directional valve 5 has a control lever for manual operation. By moving this lever, the ventilation states of the first and second air outlets can be switched, thereby precisely controlling the extension and retraction of the piston rod of cylinder 4, or locking it in the intermediate position, making the testing process flexible. A through-hole is located at the center of the first pressure clamp 7. A first air source branch pipe is installed at the outer end of this air hole, its function being to fill the cavity of the clamped valve body 16 with test gas at a predetermined pressure during testing. Opposite to the first pressure clamp 7 is the second pressure clamp 14, which is fixedly mounted on a movable frame 11. The movable frame 11 is set on the track of the support frame 8, ensuring that the central axes of the second pressure clamp 14 and the first pressure clamp 7 are strictly aligned and coincident. The second pressure clamp 14 also has a second vent hole, the outer end of which is connected to a second air source branch pipe, mainly used to discharge test gas from the inner cavity of the valve body 16 after testing. At the other end of the movable frame 11, a transparent water tank 12 for leak detection is set, so that the end of the second air source branch pipe extends below the liquid surface in the transparent water tank 12. This allows for a direct visual judgment of whether there is a leak in the valve body using the bubble observation method. If there is a gas leak, continuous bubbles will be generated from the end of the branch pipe, thus clearly indicating the leak point, achieving the effect of real-time online detection after assembly.

[0033] Please see the appendix Figure 2 and attached Figure 7 The bottom of the movable frame 11 is rotatably connected to multiple pulleys 13, which are slidably connected to the outer wall of the support frame 8.

[0034] Specifically, by installing multiple pulleys 13 at the bottom of the movable frame 11, the multiple pulleys 13 rotate between the movable frame 11 and the support frame 8, thereby facilitating the movement of the movable frame 11 through the threaded rod 10 to drive the transparent water bucket 12 and the second pressure clamp 14, and preventing the transparent water bucket 12 from interfering with the movement of the movable frame 11 due to the weight of the water.

[0035] Please see the appendix Figure 4 -Appendix Figure 8 The lifting assembly 15 includes a first lifting frame 1501 and a second lifting frame 1510. The first lifting frame 1501 and the second lifting frame 1510 are slidably connected to the outer wall of the support frame 8. A plurality of threaded rods 1502 are rotatably connected to the inner wall of the support frame 8. A bevel gear 1504 is installed at the bottom end of the threaded rods 1502. A plurality of stabilizing rods 1503 are installed on the outer wall of the support frame 8. Two connecting rods 1505 and a transmission rod 1507 are rotatably connected to the inner wall of the bottom end of the support frame 8. Transmission bevel gears 1506 are respectively installed at both ends of the connecting rods 1505. Both ends of the transmission rod 1507 are equipped with bevel gears 1508 and bevel gears 1509. Multiple bevel gears 1504 are meshed with the tooth ends of the transmission bevel gears 1506 and 1509, respectively. Bevel gears 1508 are meshed with the tooth ends of the transmission bevel gears 1506. Multiple threaded rods 1502 are threaded to the inner walls of both sides of the first lifting frame 1501 and the second lifting frame 1510, respectively. Multiple threaded rods 1502 are slidably connected to the inner walls of both sides of the first lifting frame 1501 and the second lifting frame 1510, respectively.

[0036] Specifically, the transmission bevel gear 1506 meshes with bevel gear one 1504 and bevel gear two 1508, and bevel gear three 1509 meshes with bevel gear one 1504. One end of the connecting rod 1505 is set as a hexagonal block, so that the connecting rod 1505 can be rotated by the hexagonal rotating handle, which indirectly drives the four threaded rods three 1502 to rotate together. The four threaded rods three 1502 drive the first lifting frame 1501 and the threaded rods three 1502 to move upward together, so that the valve body 16 can be adjusted up and down, thereby adjusting the height of the valve body 16.

[0037] Workflow: Platform base 2 is fixed to the upper surface of lifting worktable 1, and its height can be adjusted accordingly. Cylinder base 3 is fixed above platform base 2, and cylinder 4 is fixed on cylinder base 3. Manual reversing valve 5 is fixed to cylinder body of cylinder 4, and is a three-position four-way structure with a main air inlet pipe, an exhaust port, a first air outlet pipe, and a second air outlet pipe; the main air inlet pipe is connected to the outlet of pressure reducing valve 6, and the inlet of pressure reducing valve 6 is connected to an external air source to regulate the input air pressure. Cylinder body of cylinder 4 has first and second cylinder air inlets, which are respectively connected to the first and second air outlet pipes of manual reversing valve 5. Piston rod of cylinder 4 can extend and retract, and the end is fixed with first pressure clamp 7; operating the control lever of manual reversing valve 5 can switch the air outlet state, control the extension, retraction, and locking of piston rod. First pressure clamp 7 has a first vent hole, and the outer end is equipped with a first air source branch pipe to fill the inner cavity of valve body 16 with test gas. The second pressure clamp 14 is fixed to the movable frame 11 and mounted on the support frame 8, opposite the first pressure clamp 7 and with its central axis coinciding. The second pressure clamp 14 has a second vent hole, and its outer end is connected to a second air source branch pipe to discharge the gas inside the valve body 16. A transparent water bucket 12 is provided at the other end of the movable frame 11, and the end of the second air source branch pipe extends below the liquid surface in the bucket. The leakage situation is judged by observing the bubbles.

[0038] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable valve assembly pressure testing device, comprising a lifting worktable (1), characterized in that: The top of the lifting worktable (1) is equipped with a platform base (2). Several sets of cylinder bases (3) and a first pressure clamp (7) are installed on the end face of the platform base (2). A cylinder (4) is installed on the top of the cylinder base (3). A manual reversing valve (5) is installed on the top of the cylinder (4). A threaded rod (9) is rotatably connected to the other end of the platform base (2). A support frame (8) is slidably connected to the other end of the platform base (2). A lifting assembly (15) is installed on one end of the support frame (8). A valve body (16) is installed on the top of the lifting assembly (15). A threaded rod (10) is rotatably connected to the other end of the support frame (8). A movable frame (11) is slidably connected to the other end of the support frame (8). A second pressure clamp (14) is installed on one end of the movable frame (11). A transparent water bucket (12) is installed on the other end of the movable frame (11).

2. The adjustable valve assembly pressure testing device according to claim 1, characterized in that: The lifting assembly (15) includes a first lifting frame (1501) and a second lifting frame (1510). The first lifting frame (1501) and the second lifting frame (1510) are slidably connected to the outer wall of the support frame (8). The inner wall of the support frame (8) is rotatably connected to a plurality of threaded rods (1502). The bottom end of the threaded rods (1502) is equipped with a bevel gear (1504). The outer wall of the support frame (8) is equipped with a plurality of stabilizing rods (1503). The bottom inner wall of the support frame (8) is rotatably connected to two connecting rods (1505) and a transmission rod (1507). The two ends of the connecting rod (1505) are respectively equipped with a transmission bevel gear (1506) and a bevel gear (1509). The two ends of the transmission rod (1507) are each equipped with a bevel gear (1508).

3. The adjustable valve assembly pressure testing device according to claim 2, characterized in that: Multiple bevel gears one (1504) are respectively meshed with the tooth ends of transmission bevel gear (1506) and bevel gear three (1509), and bevel gear two (1508) is meshed with the tooth end of transmission bevel gear (1506).

4. The adjustable valve assembly pressure testing device according to claim 2, characterized in that: Multiple threaded rods (1502) are threadedly connected to the inner walls of the first lifting frame (1501) and the second lifting frame (1510) on both sides respectively, and multiple threaded rods (1502) are slidably connected to the inner walls of the first lifting frame (1501) and the second lifting frame (1510) on both sides respectively.

5. The adjustable valve assembly pressure testing device according to claim 1, characterized in that: The threaded rod (10) is threadedly connected to the inner wall of the bottom end of the movable frame (11), and the second pressure clamp (14) is slidably connected to the outer wall of the valve body (16).

6. The adjustable valve assembly pressure testing device according to claim 1, characterized in that: The threaded rod (9) is threaded to the inner wall of the bottom end of the support frame (8), and the valve body (16) is slidably connected to the outer wall of the first pressure clamp (7).

7. The adjustable valve assembly pressure testing device according to claim 1, characterized in that: Both sides of the valve body (16) are provided with sealing gaskets (18), and one end of the first pressure clamp (7) and the second pressure clamp (14) are provided with multiple sealing rings (17), which are slidably connected to the outer wall of the sealing gasket (18).

8. The adjustable valve assembly pressure testing device according to claim 1, characterized in that: The bottom end of the movable frame (11) is rotatably connected to a plurality of pulleys (13), and the plurality of pulleys (13) are slidably connected to the outer wall of the support frame (8).

9. The adjustable valve assembly pressure testing device according to claim 1, characterized in that: The manual reversing valve (5) adopts a three-position four-way structure and is connected to a main air inlet pipe, an exhaust port, a first air outlet pipe and a second air outlet pipe. A pressure reducing valve (6) is installed at one end of the main air inlet pipe, and the air inlet of the pressure reducing valve (6) is connected to an external air source.

10. The adjustable valve assembly pressure testing device according to claim 2, characterized in that: The cylinder (4) has a first cylinder inlet and a second cylinder inlet, which are connected to the first outlet pipe and the second outlet pipe respectively. One end of the cylinder (4) is provided with a piston rod, which is connected to the first pressure clamp (7). One end of the first pressure clamp (7) is provided with a first vent hole, and a first air source branch pipe is installed at its outer end. One end of the second pressure clamp (14) is provided with a second vent hole, and a second air source branch pipe is installed at the outer end of the second vent hole, so that the bottom end of the second air source branch pipe is installed in the transparent water bucket (12).

Images