A faucet sealing performance testing device

Abstract

The present invention belongs to the technical field of sealing test, and specifically discloses a faucet sealing performance test device, including a main body, a test bench installed inside the main body, a test clamping mechanism provided on the surface of the test bench, two fixed plates symmetrically installed on the surface of the test bench, the test clamping mechanism including a movable frame, the movable frame movably sleeved and installed on the surfaces of the two fixed plates, a bottom clamping mechanism installed on the bottom of the movable frame, side clamping mechanisms provided on both sides of the movable frame, and a top clamping mechanism provided above the test bench. The present invention forms a fully enclosed pressure cavity through the three-dimensional clamping of the bottom sealing plate, the side sealing plate and the top sealing plate, avoiding the leakage dead corner caused by the traditional one-way clamping. The device only needs to lower the top clamping mechanism to complete the three-dimensional clamping of the faucet shell, thereby reducing equipment costs and being suitable for rapid deployment on automated production lines.

Description

Technical Field

[0001] The invention belongs to the technical field of sealing test, and specifically discloses a faucet sealing performance test device. Background Art

[0002] A faucet is a device used to control water flow, typically installed on pipes, sinks, bathtubs, showers, and other fixtures. A switch or handle adjusts the flow and on / off. It is widely used in daily life, industrial production, agricultural irrigation, and other fields. The faucet housing is the faucet's framework, housing and protecting key internal components. The core purpose of sealing performance testing of faucet housings is to ensure reliable leakage resistance in actual use, thereby safeguarding product quality, safety, and user experience.

[0003] The existing faucet sealing performance test uses a cylinder combination to achieve multi-directional clamping, which has problems such as poor synchronization and complex piping. The three-cylinder linkage device requires precise air circuit control, which is costly and difficult to maintain. In addition, when installing the faucet shell, the clamping position needs to be manually adjusted, and the clamping is time-consuming. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to propose a faucet sealing performance testing device to solve the problems of the existing technology that multi-directional clamping is achieved through a cylinder combination, poor synchronization, complex pipelines, etc., the three-cylinder linkage device requires precise air circuit control, high cost and difficult maintenance, and when installing the faucet shell, it is necessary to manually adjust the clamping position, and the clamping takes a long time.

[0005] To achieve the above objectives, the present invention provides a faucet sealing performance testing device, comprising a main body, a test bench installed inside the main body, a test clamping mechanism provided on the surface of the test bench, two fixed plates symmetrically installed on the surface of the test bench, the test clamping mechanism comprising a movable frame, the movable frame movably sleeved and installed on the surfaces of the two fixed plates, a bottom clamping mechanism installed at the bottom of the movable frame, side clamping mechanisms provided on both sides of the movable frame, the bottom clamping mechanism comprising a lifting block, the top of the lifting block is fixedly connected to a center column, the surface of the center column movably passes through the movable frame, a bottom blocking plate is installed on the top of the center column, the bottom of the lifting block cooperates with the side clamping mechanism, a top clamping mechanism is provided above the test bench, the top clamping mechanism comprises an L-shaped lifting platform, two driving mechanisms are symmetrically provided below the L-shaped lifting platform, the driving mechanism is provided behind the movable frame, and the L-shaped lifting platform is connected to the movable frame through the driving mechanism.

[0006] In the above technical solution, preferably, two fixed frames are symmetrically installed at the rear of the top of the movable frame, the bottom of the fixed frame is fixedly installed on the top of the movable frame, an arc-shaped bracket is fixedly installed at the middle end in front of the fixed frame, two movable frames are symmetrically installed in front of the top of the movable frame, and the surface of the movable frame moves through the movable frame, the bottom of the movable frame is arranged on both sides of the lifting block, and a connecting plate is provided at the front end of the lifting block, and the connecting plate is fixedly connected to the movable frame by bolts.

[0007] In the above technical solution, preferably, a through groove is opened at the middle end of the test bench, the bottom of the lifting block is connected to a ventilation pipe, the surface of the ventilation pipe is movably arranged in the through groove, the lifting block, the center column and the middle end of the bottom sealing plate are all provided with air holes, the air holes are connected to the ventilation pipe, the front end of the connecting plate is connected to a pressure gauge, and the pressure gauge is connected to the air hole.

[0008] In the above technical solution, preferably, an inclined groove is provided on the surface of the fixed plate, and the horizontal height of the inclined groove gradually increases from the front to the rear. A guide column is fixedly installed on the side of the lifting block, and the end of the guide column is movably installed in the inclined groove.

[0009] In the above technical solution, preferably, a horizontal groove is provided on the surface of the fixed plate, and the horizontal groove is below the inclined groove. The side clamping mechanism includes an L-shaped bracket, and a square groove is provided on the side of the movable frame. The surface of the bottom end of the L-shaped bracket is movably inserted into the square groove, and the surface of the L-shaped bracket is movably arranged in the horizontal groove. The end face of the bottom of the L-shaped bracket is connected to a connecting rod through a rotating shaft, and the other end of the connecting rod is connected to the bottom of the lifting block through a rotating shaft. The top of the L-shaped bracket is provided with a side blocking mechanism.

[0010] In the above technical solution, preferably, the side sealing mechanism includes a stabilizing block, which is fixedly installed on the top of the L-shaped bracket. A limiting groove is provided at one end of the stabilizing block close to the movable frame. A spring is provided inside the limiting groove. The top of the spring is connected to the limiting block, and a side sealing plate is fixedly installed on the surface of the limiting block.

[0011] In the above technical solution, preferably, a cylinder is provided inside the main body and above the test clamping mechanism, the output end of the cylinder is connected to the L-shaped lifting platform, an extension column is installed on the surface of the L-shaped lifting platform, and a top sealing plate is fixedly installed on the bottom end of the extension column.

[0012] In the above technical solution, preferably, the driving mechanism includes a positioning block, which is fixedly mounted on the side of the fixed plate, and the positioning block is connected to an L-shaped push rod on the surface of the positioning block close to the fixed plate, and the corner of the L-shaped push rod is connected to the positioning block through a rotating shaft, and a straight line is fixedly mounted on the side of the movable frame, and a second protruding column is fixedly mounted on the rear end of the straight line, and a second movable groove is opened at the front end of the L-shaped push rod, and the surface of the second protruding column is movably engaged in the second movable groove, and a driving bar is fixedly mounted on both ends of the bottom of the L-shaped lifting platform, and a protruding block is fixedly mounted on the bottom end of the driving bar, and a first movable groove is opened on the surface of the protruding block, and a first protruding column is fixedly mounted on the rear of the L-shaped push rod, and the surface of the first protruding column is movably engaged in the first movable groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Through the three-dimensional clamping of the bottom sealing plate, the side sealing plate and the top sealing plate, a fully enclosed pressure chamber is formed to avoid the leakage dead corner caused by traditional one-way clamping. The bottom lifting block and the side L-shaped bracket are linked by a connecting rod. After the bottom of the faucet shell is lifted, its side can be directly clamped. With the downward pressure of the top cylinder, four-way sealing is achieved to test the leakage rate.

[0015] The device only requires a cylinder to drive the vertical movement of the L-shaped lifting platform. The L-shaped push rod's slotted column transmission can simultaneously achieve the horizontal sliding of the moving frame, the lifting block's lifting and side clamping. There is no need for independent control of motors, cylinders or complex sensors, which reduces equipment costs and is suitable for rapid deployment on automated production lines.

[0016] The arc-shaped bracket on the top of the movable frame fits the arc surface of the faucet shell through the curved surface, providing uniform initial clamping force. The operator only needs to place the workpiece to complete the positioning. Compared with traditional manual alignment, the efficiency is effectively improved and it is suitable for rapid clamping of the faucet shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the test clamping mechanism of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping mechanism tested from another perspective of the present invention;

[0020] Figure 4 It is a schematic diagram of the fixed plate structure of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the side clamping mechanism of the present invention;

[0022] Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 7 It is a schematic structural diagram of the side sealing mechanism of the present invention.

[0024] In the figure: 1. main body; 2. test clamping mechanism; 3. test bench; 4. moving frame; 5. fixed frame; 6. arc-shaped bracket; 7. moving frame; 8. center column; 9. bottom blocking plate; 10. lifting block; 11. fixed plate; 12. inclined groove; 13. guide column; 14. connecting plate; 15. horizontal groove; 16. L-shaped bracket; 17. side blocking mechanism; 18. connecting rod; 19. L-shaped lifting platform; 20. driving bar; 21. protruding block; 22. first movable groove; 23. positioning block; 24. L-shaped push rod; 25. first protruding column; 26. second movable groove; 27. second protruding column; 28. stabilizing block; 29. ​​side blocking plate; 30. limiting groove; 31. limiting block; 32. spring; 33. through groove; 34. extension column; 35. top blocking plate; 36. pressure gauge. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] like Figure 1-Figure 7The faucet sealing performance test device shown in the figure includes a main body 1, a test bench 3 is installed inside the main body 1, a test clamping mechanism 2 is provided on the surface of the test bench 3, two fixed plates 11 are symmetrically installed on the surface of the test bench 3, the test clamping mechanism 2 includes a moving frame 4, the moving frame 4 is movably sleeved and installed on the surfaces of the two fixed plates 11, a bottom clamping mechanism is installed at the bottom of the moving frame 4, and side clamping mechanisms are provided on both sides of the moving frame 4. The bottom clamping mechanism includes a lifting block 10, the top of the lifting block 10 is fixedly connected to a center column 8, the surface of the center column 8 movably passes through the moving frame 4, the top of the center column 8 is installed with a bottom blocking plate 9, and the bottom of the lifting block 10 is clamped with the side The mechanism is coordinated with each other, and a top clamping mechanism is arranged above the test bench 3. The top clamping mechanism includes an L-shaped lifting platform 19. Two driving mechanisms are symmetrically arranged below the L-shaped lifting platform 19. The driving mechanism is arranged behind the moving frame 4. The L-shaped lifting platform 19 is connected to the moving frame 4 through the driving mechanism. Through the three-dimensional clamping of the bottom sealing plate 9, the side sealing plate 29 and the top sealing plate 35, a fully enclosed pressure cavity is formed to avoid the leakage dead corner caused by traditional unidirectional clamping. The device only needs to lower the top clamping mechanism to complete the three-dimensional clamping of the faucet shell. There is no need for independent control of motors, cylinders or complex sensors, which reduces equipment costs and is suitable for rapid deployment of automated production lines.

[0028] Two fixing frames 5 are symmetrically installed at the rear of the top of the moving frame 4, and the bottom of the fixing frame 5 is fixedly installed at the top of the moving frame 4. An arc-shaped bracket 6 is fixedly installed at the middle end of the front of the fixing frame 5. Two moving frames 7 are symmetrically installed at the front of the top of the moving frame 4, and the surface of the moving frame 7 is movable through the moving frame 4. The bottom of the moving frame 7 is arranged on both sides of the lifting block 10, and a connecting plate 14 is provided at the front end of the lifting block 10. The connecting plate 14 is fixedly connected to the moving frame 7 by bolts. When the faucet shell is installed, the side of the faucet shell can be placed on the surface of the arc-shaped bracket 6. The curved surface design of the arc-shaped bracket 6 can fit the arc-shaped surfaces on both sides of the faucet shell. The curved surface contact area is large, providing uniform initial clamping force, preventing the faucet shell from slipping or offsetting during the subsequent lifting process, and facilitating the rapid positioning of the faucet shell. Since the connecting plate 14 is fixedly connected to the moving frame 7 by bolts, when the lifting block 10 moves up and down, the moving frame 7 will also move up and down synchronously. Therefore, when the faucet shell is installed, the lifting block 10 drops to the bottom and the moving frame 7 drops synchronously, providing installation space for the installation of the faucet shell.

[0029] A through groove 33 is provided at the middle end of the test bench 3, and a ventilation pipe is connected to the bottom of the lifting block 10. The surface of the ventilation pipe is movably arranged in the through groove 33. The middle ends of the lifting block 10, the center column 8 and the bottom sealing plate 9 are all provided with air holes, and the air holes are connected to the ventilation pipe. The front end of the connecting plate 14 is connected to a pressure gauge 36, and the pressure gauge 36 is connected to the air hole. The main body 1 is inside the test bench 3 and is provided with an external air source. The external air source is connected to the bottom of the lifting block 10 through the ventilation pipe. The ventilation pipe passes through the through groove 33 of the test bench 3 to form a fixed gas transmission channel. The gas generated by the air source passes through the lifting block 10, the center column 8 and the air holes of the bottom sealing plate 9 in turn through the ventilation pipe, and finally enters the inside of the faucet shell to establish a test pressure environment. The pressure gauge 36 at the front end of the connecting plate 14 is connected to the air hole, and the air pressure value in the faucet shell is displayed in real time. The operator can judge the sealing performance based on the pressure data.

[0030] When the cam 12 is lowered, the guide post 13 is moved upwards to move the cam 12 upwards, and the cam 12 is moved upwards to move the cam 12 downwards.

[0031] The surface of the fixed plate 11 is provided with a horizontal groove 15, which is located below the inclined groove 12. The side clamping mechanism includes an L-shaped bracket 16. The side of the mobile frame 4 is provided with a square groove. The surface of the bottom end of the L-shaped bracket 16 is movably inserted into the square groove, and the surface of the L-shaped bracket 16 is movably arranged in the horizontal groove 15. The end surface of the bottom of the L-shaped bracket 16 is connected to a connecting rod 18 through a rotating shaft. The other end of the connecting rod 18 is connected to the bottom of the lifting block 10 through a rotating shaft. The top of the L-shaped bracket 16 is provided with a side blocking mechanism 17. When the lifting block 10 rises with the movement of the mobile frame 4, its bottom is pulled by the rotating shaft. The connecting rod 18 swings inward, and the connecting rod 18 drives the L-shaped bracket 16 to slide inward. The side blocking mechanism 17 on the top of the L-shaped bracket 16 moves inward synchronously to clamp the side of the faucet shell. Conversely, when the lifting block 10 descends, the connecting rod 18 swings outward, the L-shaped bracket 16 is retracted outward, and the side blocking mechanism 17 is separated from the faucet shell, which is convenient for loading and unloading workpieces. Through the vertical movement of the lifting block 10 and the mechanical transmission of the connecting rod 18 and the L-shaped bracket 16, the clamping action of the bottom and the side is realized synchronously. There is no need to independently control the actuators in each direction, which greatly improves the test efficiency and reduces manual intervention.

[0032] The side blocking mechanism 17 includes a stabilizing block 28, which is fixedly mounted on the top of the L-shaped bracket 16. A limiting groove 30 is provided at one end of the stabilizing block 28 close to the movable frame 4. A spring 32 is arranged inside the limiting groove 30. The top of the spring 32 is connected to the limiting block 31. A side blocking plate 29 is fixedly mounted on the surface of the limiting block 31. When the L-shaped bracket 16 slides inward, the side blocking plate 29 moves synchronously with the stabilizing block 28 and contacts the side of the faucet shell first. The top clamping mechanism begins to apply a downward extrusion force to the faucet shell. After the faucet shell is pressurized in the vertical direction, the limiting groove 30 will compress the spring 32, and the limiting block 31 will slide in the limiting groove 30 accordingly, thereby avoiding the problem that the extrusion force applied by the top clamping mechanism causes the position of the faucet shell to change, and the clamping force of the side blocking plate 29 on the side of the faucet shell decreases.

[0033] A cylinder is provided inside the main body 1 and above the test clamping mechanism 2. The output end of the cylinder is connected to the L-shaped lifting platform 19. An extension column 34 is installed on the surface of the L-shaped lifting platform 19. A top sealing plate 35 is fixedly installed on the bottom end of the extension column 34. The cylinder serves as a power source. The cylinder drives the L-shaped lifting platform 19 to perform vertical lifting movements. The cylinder drives the L-shaped lifting platform 19 to move downward, and the extension column 34 moves downward accordingly, so that the top sealing plate 35 gradually approaches the top of the faucet shell, thereby being able to perform a pressing operation on the faucet shell to ensure the stability of the faucet shell during the testing process.

[0034] The driving mechanism includes a positioning block 23, which is fixedly mounted on the side of the fixed plate 11. The surface of the positioning block 23 close to the fixed plate 11 is connected to an L-shaped push rod 24, and the corner of the L-shaped push rod 24 is connected to the positioning block 23 through a rotating shaft. A straight line is fixedly mounted on the side of the movable frame 4, and a second protruding column 27 is fixedly mounted on the rear end of the straight line. A second movable groove 26 is provided at the front end of the L-shaped push rod 24, and the surface of the second protruding column 27 is movably engaged in the second movable groove 26. The driving bar 20 is fixedly mounted on both ends of the bottom of the L-shaped lifting platform 19, and a protruding block 21 is fixedly mounted on the bottom end of the driving bar 20. A first movable groove 22 is provided on the surface of the protruding block 21. A first movable groove 22 is provided on the surface of the protruding block 21. A first protruding column 25 is fixedly mounted on the rear of the L-shaped push rod 24, and the surface of the first protruding column 25 is movably engaged in the first movable groove 22. The cylinder drives the L-shaped lifting platform 19 downward During movement, the driving bar 20 and the protruding block 21 at the bottom thereof move downward synchronously. Since the first movable groove 22 of the protruding block 21 is engaged with the first protruding column 25 of the L-shaped push rod 24, the vertical downward displacement will force the protruding block 21 to push the L-shaped push rod 24. The L-shaped push rod 24 will rotate with the rotating shaft of the positioning block 23 as the fulcrum. When the L-shaped push rod 24 rotates, the second movable groove 26 at its front end converts the rotational motion into horizontal thrust through the engaged second protruding column 27, driving the moving frame 4 to slide horizontally toward the rear of the test bench 3, driving the lifting block 10, connecting rod 18 and other components at the bottom to move synchronously, and finally realizing the clamping operation of the faucet shell. The horizontal movement and side clamping of the bottom moving frame 4 can be synchronously realized only through the vertical movement of the cylinder, without the need for additional motors, cylinders or complex control systems, which greatly simplifies the equipment structure and reduces costs and energy consumption.

[0035] Working principle: First, in the initial stage, the moving frame 4 is at the front end position of the fixed plate 11. At this time, the guide column 13 is at the lowest point of the inclined groove 12. The lifting block 10 and the bottom blocking plate 9 are lowered to the lowest position, leaving space with the surface of the test bench 3, which is convenient for placing the faucet shell. The L-shaped bracket 16 of the side clamping mechanism moves outward due to the connecting rod 18, driving the side blocking plate 29 to be in an outward open state and not contacting the faucet shell. The L-shaped lifting platform 19 of the top clamping mechanism is driven by the cylinder to the upper limit position, and the top blocking plate 35 is away from the test bench 3, leaving space for clamping. Then, the side of the faucet shell is placed on the surface of the arc-shaped bracket 6 on the top of the moving frame 4, and the curved surface of the arc-shaped bracket 6 is used to fit the arc structure on both sides of the faucet shell to achieve rapid positioning and prevent side sliding. At this time, the bottom of the faucet shell is aligned with the position of the bottom blocking plate 9, but has not yet touched. In the next step, the cylinder is started, and the L-shaped lifting platform 19 moves vertically downward, driving the extension column 34 and the top blocking plate 35 to gradually approach the top of the faucet shell. At the same time, the driving bar 20 and the protruding block 21 at the bottom of the L-shaped lifting platform 19 move downward synchronously. Due to the first movable groove of the protruding block 21 22 is clamped on the first protruding column 25 of the L-shaped push rod 24, and the vertical displacement forces the L-shaped push rod 24 to rotate with the rotating shaft of the positioning block 23 as the fulcrum. When the L-shaped push rod 24 rotates, the second movable groove 26 at its front end pushes the second protruding column 27 on the side of the moving frame 4, so that the moving frame 4 slides horizontally backward along the fixed plate 11. When the moving frame 4 moves backward, the guide column 13 slides upward along the inclined groove 12, driving the lifting block 10, the center column 8 and the bottom blocking plate 9 to rise. The bottom blocking plate 9 presses against the bottom of the faucet shell upward. When the lifting block 10 rises, the bottom is lifted by the connecting rod 1 8 pulls the L-shaped bracket 16 to slide inward, driving the side sealing plate 29 to clamp the side of the faucet shell, the cylinder continues to descend, and the top sealing plate 35 finally presses the top of the faucet shell, forming a fully enclosed sealed space together with the bottom and side sealing mechanisms to complete the clamping. Finally, the external air source inflates the interior of the faucet shell through the ventilation pipe, and the gas enters the faucet shell through the lifting block 10, the center column 8 and the air holes of the bottom sealing plate 9. The pressure gauge 36 at the front end of the connecting plate 14 displays the internal air pressure value in real time. The operator observes the pressure stability according to the preset pressure standard and judges the sealing performance.

[0036] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A faucet sealing performance testing device, comprising a main body (1), characterized in that: A test bench (3) is installed inside the main body (1), a test clamping mechanism (2) is provided on the surface of the test bench (3), two fixed plates (11) are symmetrically installed on the surface of the test bench (3), the test clamping mechanism (2) comprises a movable frame (4), the movable frame (4) is movably sleeved and installed on the surfaces of the two fixed plates (11), a bottom clamping mechanism is installed at the bottom of the movable frame (4), and side clamping mechanisms are provided on both sides of the movable frame (4), and the bottom clamping mechanism comprises a lifting block (10). The top of the lifting block (10) is fixedly connected to a center column (8), the surface of the center column (8) is movable and passes through the movable frame (4), the top of the center column (8) is installed with a bottom blocking plate (9), the bottom of the lifting block (10) cooperates with the side clamping mechanism, a top clamping mechanism is provided above the test bench (3), the top clamping mechanism includes an L-shaped lifting platform (19), and two driving mechanisms are symmetrically provided below the L-shaped lifting platform (19), and the driving mechanisms are provided on the movable frame (4). At the rear, the L-shaped lifting platform (19) is connected to the moving frame (4) through the driving mechanism, the surface of the fixed plate (11) is provided with an inclined groove (12), the horizontal height of the inclined groove (12) gradually increases from the front to the rear, the side of the lifting block (10) is fixedly installed with a guide column (13), the end of the guide column (13) is movably installed in the inclined groove (12), the surface of the fixed plate (11) is provided with a horizontal groove (15), the horizontal groove (15) is located below the inclined groove (12) The side clamping mechanism includes an L-shaped bracket (16), a square groove is provided on the side of the movable frame (4), the surface of the bottom end of the L-shaped bracket (16) is movably inserted into the square groove, and the surface of the L-shaped bracket (16) is movably arranged in the horizontal groove (15), the end surface of the bottom of the L-shaped bracket (16) is connected to a connecting rod (18) through a rotating shaft, and the other end of the connecting rod (18) is connected to the bottom of the lifting block (10) through a rotating shaft, and a side blocking mechanism (17) is provided on the top of the L-shaped bracket (16).

2. A faucet sealing performance testing device according to claim 1, characterized in that: Two fixed frames (5) are symmetrically installed at the rear of the top of the movable frame (4), the bottom of the fixed frame (5) is fixedly installed on the top of the movable frame (4), and an arc-shaped bracket (6) is fixedly installed at the middle end of the front of the fixed frame (5). Two movable frames (7) are symmetrically installed in front of the top of the movable frame (4), and the surface of the movable frame (7) moves through the movable frame (4). The bottom of the movable frame (7) is set on both sides of the lifting block (10), and the front end of the lifting block (10) is provided with a connecting plate (14), and the connecting plate (14) is fixedly connected to the movable frame (7) by bolts.

3. A faucet sealing performance testing device according to claim 2, characterized in that: A through groove (33) is provided at the middle end of the test bench (3), a ventilation pipe is connected to the bottom of the lifting block (10), and the surface of the ventilation pipe is movably arranged in the through groove (33). The lifting block (10), the center column (8) and the middle end of the bottom sealing plate (9) are all provided with air holes, and the air holes are connected to the ventilation pipe. The front end of the connecting plate (14) is connected to a pressure gauge (36), and the pressure gauge (36) is connected to the air hole.

4. A faucet sealing performance testing device according to claim 1, characterized in that: The side blocking mechanism (17) includes a stabilizing block (28), which is fixedly mounted on the top end of the L-shaped bracket (16). A limiting groove (30) is provided at one end of the stabilizing block (28) close to the movable frame (4). A spring (32) is provided inside the limiting groove (30), and the top end of the spring (32) is connected to the limiting block (31). A side blocking plate (29) is fixedly mounted on the surface of the limiting block (31).

5. The faucet sealing performance testing device according to claim 1, characterized in that: A cylinder is provided inside the main body (1) and above the test clamping mechanism (2), the output end of the cylinder is connected to the L-shaped lifting platform (19), an extension column (34) is installed on the surface of the L-shaped lifting platform (19), and a top blocking plate (35) is fixedly installed at the bottom end of the extension column (34).

6. A faucet sealing performance testing device according to claim 1, characterized in that: The driving mechanism includes a positioning block (23), the positioning block (23) is fixedly mounted on the side of the fixing plate (11), the surface of the positioning block (23) close to the fixing plate (11) is connected to an L-shaped push rod (24), the corner of the L-shaped push rod (24) is connected to the positioning block (23) via a rotating shaft, a straight line is fixedly mounted on the side of the moving frame (4), a second protruding column (27) is fixedly mounted at the rear end of the straight line, and a second movable groove (27) is opened at the front end of the L-shaped push rod (24). 6), the surface of the second protruding column (27) is movably engaged in the second movable groove (26), the driving bars (20) are fixedly installed at both ends of the bottom of the L-shaped lifting platform (19), the bottom end of the driving bar (20) is fixedly installed with a protruding block (21), the surface of the protruding block (21) is provided with a first movable groove (22), the rear of the L-shaped push rod (24) is fixedly installed with a first protruding column (25), and the surface of the first protruding column (25) is movably engaged in the first movable groove (22).

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