Faucet sealing performance testing device

Abstract

The invention belongs to the technical field of sealing performance testing, and particularly discloses a faucet sealing performance testing device which comprises a main body, a testing table is installed in the main body, a testing clamping mechanism is arranged on the surface of the testing table, two fixing plates are symmetrically installed on the surface of the testing table, and the testing clamping mechanism comprises a moving frame. The movable frame is movably installed on the surfaces of the two fixing plates in a sleeving mode, a bottom clamping mechanism is installed at the bottom of the movable frame, side face clamping mechanisms are arranged on the two sides of the movable frame, and a top clamping mechanism is arranged above the testing table. Through three-dimensional clamping of the bottom plugging plate, the side plugging plates and the top plugging plate, a totally-closed pressure cavity is formed, leakage dead angles caused by traditional one-way clamping are avoided, three-dimensional clamping of a faucet shell can be completed only by descending of the top clamping mechanism, the equipment cost is reduced, and the three-dimensional clamping device is suitable for rapid deployment of an automatic production line.

Description

Technical Field

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

[0002] A faucet is a device for controlling water flow, usually installed on facilities such as water pipes, sinks, bathtubs, showers, etc., and the size and on-off of the water flow are adjusted through a switch or a handle. It is widely used in daily life, industrial production, agricultural irrigation and other fields. The faucet housing is the framework of the faucet, used to install and protect the internal key components. The core purpose of testing the sealing performance of the faucet housing is to ensure its reliable leak-proof ability in actual use, and to ensure product quality, safety and user experience.

[0003] For the existing faucet sealing performance testing, multi-directional clamping is achieved through a cylinder combination, which has problems such as poor synchronism and complex pipelines. The three-cylinder linkage device requires precise air circuit control, high cost and difficult maintenance. Moreover, when installing the faucet housing, the clamping position needs to be manually adjusted, and the clamping takes a long time. 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 poor synchronism and complex pipelines in the existing technology by using a cylinder combination for multi-directional clamping. The three-cylinder linkage device requires precise air circuit control, high cost and difficult maintenance. Moreover, when installing the faucet housing, the clamping position needs to be manually adjusted, and the clamping takes a long time.

[0005] To achieve the above purpose, the present invention provides a faucet sealing performance testing device, including a main body. A test bench is installed inside the main body. A test clamping mechanism is arranged on the surface of the test bench. Two fixing plates are symmetrically installed on the surface of the test bench. The test clamping mechanism includes a moving frame, and the moving frame is movably sleeved on the surfaces of the two fixing plates. A bottom clamping mechanism is installed at the bottom of the moving frame. Side clamping mechanisms are arranged on both sides of the moving frame. The bottom clamping mechanism includes a lifting block. A central column is fixedly connected to the top of the lifting block. The surface of the central column movably penetrates through the moving frame. A bottom sealing plate is installed at the top of the central column. The bottom of the lifting block cooperates with the side clamping mechanisms. A top clamping mechanism is arranged above the test bench. The top clamping mechanism includes an L-shaped lifting table. Two driving mechanisms are symmetrically arranged below the L-shaped lifting table. The driving mechanisms are arranged behind the moving frame. The L-shaped lifting table is connected to the moving frame through the driving mechanisms.

[0006] In the above technical solution, preferably, two fixing frames are symmetrically installed at the rear of the top of the moving frame. The bottom of the fixing frame is fixedly installed on the top of the moving frame. An arc-shaped bracket is fixedly installed in the middle of the front of the fixing frame. Two moving frames are symmetrically installed at the front of the top of the moving frame, and the surface of the moving frame movably penetrates through the moving frame. The bottom of the moving frame is arranged on both sides of the lifting block. A connecting plate is arranged at the front end of the lifting block, and the connecting plate is fixedly connected to the moving frame by bolts.

[0007] In the above technical solution, preferably, a through groove is opened in the middle of the test bench. An air vent pipe is connected to the bottom of the lifting block, and the surface of the air vent pipe is movably arranged in the through groove. Air holes are opened in the middle of the lifting block, the central column and the bottom sealing plate, and the air holes are connected to the air vent pipe. A pressure gauge is connected to the front end of the connecting plate, and the pressure gauge is connected to the air hole.

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

[0009] In the above technical solution, preferably, a horizontal groove is opened on the surface of the fixing plate, and the horizontal groove is located below the inclined groove. The side clamping mechanism includes an L-shaped bracket. A square groove is opened on the side surface of the moving frame, and 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 surface 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. A side sealing mechanism is arranged at the top of the L-shaped bracket.

[0010] In the above technical solution, preferably, the side sealing mechanism includes a stabilizing block. The stabilizing block is fixedly installed at the top end of the L-shaped bracket. A limiting groove is opened at one end of the stabilizing block close to the moving frame. A spring is arranged inside the limiting groove, the top end of the spring is connected to a 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 arranged inside the main body and above the test clamping mechanism. The output end of the cylinder is connected to the L-shaped lifting table. An extension column is installed on the surface of the L-shaped lifting table, and the bottom end of the extension column is fixedly installed with a top sealing plate.

[0012] In the above technical solution, preferably, the driving mechanism includes a positioning block fixedly installed on the side surface of the fixed plate. An L-shaped push rod is connected to the surface of the positioning block close to the fixed plate. The corner of the L-shaped push rod is connected to the positioning block through a rotating shaft. A straight bar is fixedly installed on the side surface of the moving frame, and a second protruding column is fixedly installed at the rear end of the straight bar. A second moving groove is formed at the front end of the L-shaped push rod, and the surface of the second protruding column is movably clamped in the second moving groove. Driving bars are fixedly installed at both ends of the bottom of the L-shaped lifting table, and a protruding block is fixedly installed at the bottom end of the driving bar. A first moving groove is formed on the surface of the protruding block, and a first protruding column is fixedly installed behind the L-shaped push rod. The surface of the first protruding column is movably clamped in the first moving groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Through the three-dimensional clamping of the bottom sealing plate, side sealing plate and top sealing plate, a fully enclosed pressure cavity is formed, avoiding the leakage dead angle caused by traditional single-direction clamping. The bottom lifting block and the side L-shaped bracket are linked by a connecting rod, and the side of the faucet shell can be directly clamped after the bottom of the faucet shell is lifted. Cooperating with the downward pressure of the top cylinder, four-way sealing in the up, down, left and right directions is realized to test the leakage rate. This device only needs to drive the L-shaped lifting table to move vertically by a cylinder, and through the groove-column transmission of the L-shaped push rod, the horizontal sliding of the moving frame, the lifting of the lifting block and the side clamping can be realized synchronously. There is no need to independently control motors, cylinders or complex sensors, reducing equipment costs and being suitable for rapid deployment in automated production lines. The arc-shaped bracket on the top of the moving frame fits the arc surface of the faucet shell through a curved surface to provide a uniform initial clamping force. The operator only needs to place the workpiece to complete positioning, effectively improving the efficiency compared with traditional manual alignment and being suitable for the rapid clamping of the faucet shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the main structure of the present invention; Figure 2 is a schematic diagram of the test clamping mechanism structure of the present invention; Figure 3 is a schematic diagram of the test clamping mechanism structure of the present invention from another perspective; Figure 4 is a schematic diagram of the fixed plate structure of the present invention; Figure 5 is a schematic diagram of the side clamping mechanism structure of the present invention; Figure 6 For the present invention Figure 2 The enlarged view at A; Figure 7 is a schematic diagram of the side sealing mechanism structure of the present invention.

[0015] In the figure: 1, main body; 2, test clamping mechanism; 3, test bench; 4, moving frame; 5, fixing frame; 6, arc-shaped support; 7, moving frame; 8, central column; 9, bottom sealing plate; 10, lifting block; 11, fixing plate; 12, inclined groove; 13, guiding column; 14, connecting plate; 15, horizontal groove; 16, L-shaped support; 17, side sealing mechanism; 18, connecting rod; 19, L-shaped lifting table; 20, driving strip; 21, protruding block; 22, first moving groove; 23, positioning block; 24, L-shaped push rod; 25, first protruding column; 26, second moving groove; 27, second protruding column; 28, stabilizing block; 29, side sealing plate; 30, limiting groove; 31, limiting block; 32, spring; 33, through groove; 34, extending column; 35, top sealing plate; 36, pressure gauge. Specific implementation mode

[0016] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation modes.

[0017] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0018] As Figures 1-7 shown, a faucet sealing performance testing device includes a main body 1. A test bench 3 is installed inside the main body 1. A test clamping mechanism 2 is arranged on the surface of the test bench 3. Two fixing 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 on the surfaces of the two fixing plates 11. A bottom clamping mechanism is installed at the bottom of the moving frame 4. Side clamping mechanisms are arranged on both sides of the moving frame 4. The bottom clamping mechanism includes a lifting block 10. A central column 8 is fixedly connected to the top of the lifting block 10. The surface of the central column 8 movably penetrates through the moving frame 4. A bottom sealing plate 9 is installed at the top of the central column 8. The bottom of the lifting block 10 cooperates with the side clamping mechanism. A top clamping mechanism is arranged above the test bench 3. The top clamping mechanism includes an L-shaped lifting table 19. Two driving mechanisms are symmetrically arranged below the L-shaped lifting table 19. The driving mechanisms are arranged behind the moving frame 4. The L-shaped lifting table 19 is connected to the moving frame 4 through the driving mechanisms. 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, avoiding the leakage dead corners caused by traditional single-direction clamping. This device only needs the top clamping mechanism to descend to complete the three-dimensional clamping of the faucet shell, without the need to independently control motors, cylinders or complex sensors, reducing the equipment cost and being suitable for rapid deployment on an automated production line.

[0019] Two fixing brackets 5 are symmetrically installed at the rear of the top of the moving frame 4. The bottom of the fixing bracket 5 is fixedly installed on the top of the moving frame 4. An arc-shaped bracket 6 is fixedly installed at the middle end in front of the fixing bracket 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 movably penetrates through the moving frame 4. The bottom of the moving frame 7 is arranged on both sides of the lifting block 10. A connecting plate 14 is arranged at the front end of the lifting block 10. The connecting plate 14 is fixedly connected to the moving frame 7 by bolts. When installing the faucet housing, the side of the faucet housing 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 housing. The curved surface contact area is large, providing a uniform initial clamping force to prevent the faucet housing from slipping or shifting during the subsequent lifting process, facilitating the quick positioning of the faucet housing. 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 installing the faucet housing, the lifting block 10 descends to the bottommost position, and the moving frame 7 descends synchronously, providing an installation space for the installation of the faucet housing.

[0020] A through groove 33 is opened at the middle end of the test bench 3. An air vent pipe is connected to the bottom of the lifting block 10. The surface of the air vent pipe is movably arranged in the through groove 33. Air holes are opened at the middle ends of the lifting block 10, the central column 8, and the bottom plugging plate 9. The air holes are connected to the air vent pipe. A pressure gauge 36 is connected to the front end of the connecting plate 14. The pressure gauge 36 is connected to the air holes. An external air source is arranged inside the test bench 3 for the main body 1. The external air source is connected to the bottom of the lifting block 10 through the air vent pipe. The air vent 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 air vent pipe and sequentially passes through the air holes of the lifting block 10, the central column 8, and the bottom plugging plate 9, and finally enters the inside of the faucet housing to establish a test pressure environment. The pressure gauge 36 at the front end of the connecting plate 14 is communicated with the air holes to display the air pressure value inside the faucet housing in real time. The operator can judge the sealing performance according to the pressure data.

[0021] The surface of the fixed plate 11 is provided with an inclined groove 12, and the horizontal height of the inclined groove 12 gradually increases from the front to the back. A guiding column 13 is fixedly installed on the side surface of the lifting block 10, and the end of the guiding column 13 is movably installed in the inclined groove 12. When the moving frame 4 moves forward or backward along the fixed plate 11, the guiding column 13 slides in the inclined groove 12. Since the horizontal height of the inclined groove 12 gradually increases from the front to the back, when the moving frame 4 moves forward, the guiding column 13 slides downward along the inclined groove 12, driving the lifting block 10 to descend. On the contrary, when the moving frame 4 moves backward, the guiding column 13 slides upward, and the lifting block 10 rises. When installing the faucet housing, the moving frame 4 moves forward, the lifting block 10 descends, and the bottom sealing plate 9 separates from the bottom of the faucet housing, creating an installation space. After the installation is completed, the moving frame 4 moves backward, the lifting block 10 rises, the bottom sealing plate 9 presses tightly against the bottom of the faucet housing upward, and the faucet housing is lifted. Then, through the linkage of the side clamping mechanism, a sealed space is formed for the faucet housing.

[0022] The surface of the fixed plate 11 is provided with a horizontal groove 15, and 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 surface of the moving frame 4, and the bottom surface 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 the bottom of the lifting block 10 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. A side sealing mechanism 17 is arranged at the top of the L-shaped bracket 16. When the lifting block 10 rises as the moving frame 4 moves, its bottom pulls the connecting rod 18 to swing inward through the rotating shaft, and the connecting rod 18 drives the L-shaped bracket 16 to slide inward. The side sealing mechanism 17 at the top of the L-shaped bracket 16 moves inward synchronously to clamp the side surface of the faucet housing. On the contrary, when the lifting block 10 descends, the connecting rod 18 swings outward, the L-shaped bracket 16 retracts outward, and the side sealing mechanism 17 separates from the faucet housing, facilitating the loading and unloading of 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 actions at the bottom and the side are synchronously realized, without the need to independently control the actuators in each direction, greatly improving the testing efficiency and reducing manual intervention.

[0023] The side sealing mechanism 17 includes a stabilizing block 28. The stabilizing block 28 is fixedly installed at the top of the L-shaped bracket 16. A limiting groove 30 is formed at one end of the stabilizing block 28 close to the moving frame 4. A spring 32 is arranged inside the limiting groove 30. The top end of the spring 32 is connected to a limiting block 31. A side sealing plate 29 is fixedly installed on the surface of the limiting block 31. When the L-shaped bracket 16 slides inward, the side sealing plate 29 moves synchronously with the stabilizing block 28 and first contacts the side of the faucet housing. The top clamping mechanism starts to apply a downward squeezing force to the faucet housing. After the faucet housing is compressed 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, avoiding the problem that the squeezing force applied by the top clamping mechanism causes the position change of the faucet housing and the decrease in the clamping force of the side sealing plate 29 on the side of the faucet housing.

[0024] A cylinder is arranged inside the main body 1 and above the test clamping mechanism 2. The output end of the cylinder is connected to an L-shaped lifting platform 19. An extension column 34 is installed on the surface of the L-shaped lifting platform 19. The bottom end of the extension column 34 is fixedly installed with a top sealing plate 35. The cylinder serves as a power source. The cylinder drives the L-shaped lifting platform 19 to perform vertical lifting motion. The cylinder drives the L-shaped lifting platform 19 to move downward, and the extension column 34 follows to descend, so that the top sealing plate 35 gradually approaches the top of the faucet housing, thereby being able to perform a pressing operation on the faucet housing and ensuring the stability of the faucet housing during the detection process.

[0025] The driving mechanism includes a positioning block 23 which is fixedly installed on the side surface of the fixing plate 11. A L-shaped push rod 24 is connected to the surface of the positioning block 23 close to the fixing plate 11. The corner of the L-shaped push rod 24 is connected to the positioning block 23 through a rotating shaft. A straight bar is fixedly installed on the side surface of the moving frame 4, and a second protruding column 27 is fixedly installed at the rear end of the straight bar. A second moving slot 26 is formed at the front end of the L-shaped push rod 24, and the surface of the second protruding column 27 is movably clamped in the second moving slot 26. At both ends of the bottom of the L-shaped lifting table 19, driving bars 20 are fixedly installed. A protruding block 21 is fixedly installed at the bottom end of the driving bar 20. A first moving slot 22 is formed on the surface of the protruding block 21. A first protruding column 25 is fixedly installed behind the L-shaped push rod 24, and the surface of the first protruding column 25 is movably clamped in the first moving slot 22. When the cylinder drives the L-shaped lifting table 19 to move downward, the driving bars 20 and the protruding blocks 21 at its bottom move downward synchronously. Since the first moving slot 22 of the protruding block 21 is clamped on the first protruding column 25 of the L-shaped push rod 24, the vertical displacement will force the protruding block 21 to push the L-shaped push rod 24, and 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 moving slot 26 at its front end converts the rotational motion into a horizontal thrust through the clamped second protruding column 27, driving the moving frame 4 to slide horizontally backward along the test bench 3, driving components such as the lifting block 10 and the connecting rod 18 at the bottom to move synchronously, and finally realizing the clamping operation of the faucet housing. Only through the vertical movement of the cylinder can the horizontal movement of the bottom moving frame 4 and the side clamping be realized synchronously, without additional motors, cylinders or complex control systems, greatly simplifying the equipment structure and reducing costs and energy consumption.

[0026] Working principle: First, in the initial stage, the moving frame 4 is at the foremost position of the fixed plate 11. At this time, the guide post 13 is at the lowest position of the inclined groove 12, and the lifting block 10 and the bottom sealing plate 9 descend to the lowest position, leaving a space from the surface of the test bench 3 to facilitate the placement of the faucet housing. The L-shaped bracket 16 of the side clamping mechanism moves outward due to the connecting rod 18, driving the side sealing plate 29 to be in an outward open state and not in contact with the faucet housing. The L-shaped lifting platform 19 of the top clamping mechanism is driven by the cylinder to be at the rising limit position, and the top sealing plate 35 is far from the test bench 3, leaving a clamping space. Subsequently, the side of the faucet housing is placed on the surface of the arc-shaped bracket 6 on the top of the moving frame 4. The curved surface of the arc-shaped bracket 6 fits the arc structures on both sides of the faucet housing to achieve rapid positioning and prevent side sliding. At this time, the bottom of the faucet housing is aligned with the position of the bottom sealing plate 9 but has not yet contacted. Next, the cylinder is started, and the L-shaped lifting platform 19 moves vertically downward, driving the extension column 34 and the top sealing plate 35 to gradually approach the top of the faucet housing. At the same time, the driving strip 20 and the protruding block 21 at the bottom of the L-shaped lifting platform 19 move downward synchronously. Since the first moving groove 22 of the protruding block 21 is clamped on the first protruding column 25 of the L-shaped push rod 24, 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 moving groove 26 at its front end pushes the second protruding column 27 on the side of the moving frame 4, causing the moving frame 4 to slide horizontally backward along the fixed plate 11. When the moving frame 4 moves backward, the guide post 13 slides upward along the inclined groove 12, driving the lifting block 10, the central column 8, and the bottom sealing plate 9 to rise. The bottom sealing plate 9 abuts tightly against the bottom of the faucet housing upward. When the lifting block 10 rises, the L-shaped bracket 16 is pulled inward by the connecting rod 18 at the bottom, driving the side sealing plate 29 to clamp the side of the faucet housing. The cylinder continues to descend, and the top sealing plate 35 finally presses tightly against the top of the faucet housing, jointly forming a fully enclosed sealed space with the bottom and side sealing mechanisms to complete the clamping. Finally, the external air source inflates the inside of the faucet housing through the ventilation pipeline. The gas enters the faucet housing through the air holes of the lifting block 10, the central column 8, and 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 to judge the sealing performance.

[0027] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention 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 arranged on the surface of the test bench (3). Two fixing 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 on the surfaces of the two fixing plates (11). A bottom clamping mechanism is installed at the bottom of the moving frame (4). Side clamping mechanisms are arranged on both sides of the moving frame (4). The bottom clamping mechanism includes a lifting block (10). A central column (8) is fixedly connected to the top of the lifting block (10). The surface of the central column (8) movably penetrates through the moving frame (4). A bottom sealing plate (9) is installed at the top of the central column (8). The bottom of the lifting block (10) cooperates with the side clamping mechanisms. A top clamping mechanism is arranged above the test bench (3). The top clamping mechanism includes an L-shaped lifting table (19). Two driving mechanisms are symmetrically arranged below the L-shaped lifting table (19). The driving mechanisms are arranged behind the moving frame (4). The L-shaped lifting table (19) is connected to the moving frame (4) through the driving mechanisms.

2. The faucet sealing performance testing device according to claim 1, characterized in that, Two fixing frames (5) are symmetrically installed at the rear of the top of the moving frame (4). The bottoms of the fixing frames (5) are fixedly installed on the top of the moving frame (4). An arc-shaped bracket (6) is fixedly installed at the middle end in front of the fixing frames (5). Two moving frames (7) are symmetrically installed at the front of the top of the moving frame (4). The surfaces of the moving frames (7) movably penetrate through the moving frame (4). The bottoms of the moving frames (7) are arranged on both sides of the lifting block (10). A connecting plate (14) is arranged at the front end of the lifting block (10). The connecting plate (14) is fixedly connected to the moving frames (7) through bolts.

3. The faucet sealing performance testing device according to claim 2, wherein A through groove (33) is opened at the middle end of the test bench (3). An air vent pipe is connected to the bottom of the lifting block (10). The surface of the air vent pipe is movably arranged in the through groove (33). Air holes are opened at the middle ends of the lifting block (10), the central column (8), and the bottom sealing plate (9). The air holes are connected to the air vent pipe. A pressure gauge (36) is connected to the front end of the connecting plate (14). The pressure gauge (36) is connected to the air holes.

4. The faucet sealing performance testing device according to claim 1, characterized in that, An inclined groove (12) is opened on the surface of the fixing plate (11). The horizontal height of the inclined groove (12) gradually increases from the front to the rear. A guiding column (13) is fixedly installed on the side surface of the lifting block (10). The end of the guiding column (13) is movably installed in the inclined groove (12).

5. The faucet sealing performance testing device according to claim 4, characterized in that, A horizontal groove (15) is formed on the surface of the fixed plate (11). 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 formed on the side surface of the moving frame (4). The surface at 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 at the bottom of the L-shaped bracket (16) is connected with a connecting rod (18) through a rotating shaft. The other end of the connecting rod (18) is connected with the bottom of the lifting block (10) through a rotating shaft. A side plugging mechanism (17) is arranged at the top of the L-shaped bracket (16).

6. The faucet sealing performance testing device according to claim 5, characterized in that, The side plugging mechanism (17) includes a stabilizing block (28). The stabilizing block (28) is fixedly installed at the top end of the L-shaped bracket (16). A limiting groove (30) is formed at one end of the stabilizing block (28) close to the moving frame (4). A spring (32) is arranged inside the limiting groove (30). The top end of the spring (32) is connected with a limiting block (31). A side plugging plate (29) is fixedly installed on the surface of the limiting block (31).

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

8. The faucet sealing performance testing device according to claim 7, characterized in that, The driving mechanism includes a positioning block (23). The positioning block (23) is fixedly installed on the side surface of the fixed plate (11). An L-shaped push rod (24) is connected to the surface of the positioning block (23) close to the fixed plate (11). The corner of the L-shaped push rod (24) is connected with the positioning block (23) through a rotating shaft. A straight bar is fixedly installed on the side surface of the moving frame (4). A second protruding column (27) is fixedly installed at the rear end of the straight bar. A second moving groove (26) is formed at the front end of the L-shaped push rod (24). The surface of the second protruding column (27) is movably clamped in the second moving groove (26). Driving bars (20) are fixedly installed at both ends of the bottom of the L-shaped lifting platform (19). A protruding block (21) is fixedly installed at the bottom end of the driving bar (20). A first moving groove (22) is formed on the surface of the protruding block (21). A first protruding column (25) is fixedly installed behind the L-shaped push rod (24). The surface of the first protruding column (25) is movably clamped in the first moving groove (22).

Images