A pressure test device for reinforced liquid crystal display production

Abstract

The present invention relates to the field of pressure test technology, and discloses a pressure test device for reinforced liquid crystal display production, comprising a threaded clamping pressure mechanism and a hydraulic depth adjustment mechanism, wherein a radial extension rod No. 1 and a radial extension rod No. 2 are respectively fixedly connected to a threaded sleeve and a pressure plate No. 2, an axial hollow gripping rod capable of axially moving along the rod bodies of the radial extension rod No. 1 and the radial extension rod No. 2, and an elastic air film capable of locking the axial hollow gripping rod on the rod bodies of the radial extension rod No. 1 and the radial extension rod No. 2 under the action of hydraulic pressure. The pressure test device for reinforced liquid crystal display production adopts a two-point positioning method and can clamp the two symmetrical surfaces of a rectangular structure. The clamping thickness and depth are adjustable, thereby improving the applicability range of the device to the clamping space position. In addition, the device is easy to carry, thereby improving the flexibility of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage resistance testing, in particular to a voltage resistance testing device for reinforced liquid crystal display production. Background Art

[0002] During the production process of LCDs, in order to ensure their pressure resistance, specific parts of the LCDs often need to be reinforced. After reinforcement, the reinforced parts of the LCDs need to be tested for pressure resistance. For this purpose, corresponding pressure resistance test equipment is required.

[0003] For example, Chinese patent publication number "CN215598886U" discloses a "power frequency withstand voltage test device," the main structure of which includes a base, with a hydraulic cylinder and two guide rods fixedly mounted on the upper end of the base. The hydraulic cylinder output end flange is connected to a lifting plate that is slidably mounted on the guide rods, and the lower end of the lifting plate is bolted to a pressure plate. This power frequency withstand voltage test device uses the guide rods to provide a guiding and limiting function for the pressure plate that is driven up and down by the hydraulic cylinder, so that the pressure plate can accurately contact and press the workpiece to be tested on the support plate during the smooth up and down movement process; the strong spring in the limit seat provides elastic support for the workpiece to be tested and the infrared emitter, so that the infrared emitter, which moves downward synchronously with the workpiece to be tested, can leave a fixed mark on the test paper board, so as to record the deformation value caused by the pressure, so that the degree of compression deformation of the workpiece to be tested can be intuitively recorded based on the mark left by the infrared emitter on the test paper board, thereby making a statistical judgment.

[0004] However, for the reinforced display screen, since the middle part of it is a liquid crystal display screen, and the above-mentioned power frequency withstand voltage test device requires a specific placement method, the degree of limitation on the clamping space position is relatively large. In addition, the above-mentioned power frequency withstand voltage test device is difficult to move, resulting in its low flexibility in use. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a pressure resistance testing device for reinforced liquid crystal display production. It adopts a two-point positioning method to clamp the two symmetrical surfaces of a rectangular structure. In addition, the clamping thickness and depth are adjustable, thereby improving the applicability range of the device for the clamping space position. In addition, the device is easy to carry, thereby improving the flexibility of the device and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pressure test device for reinforcing liquid crystal display production, comprising a threaded clamping and pressure-applying mechanism, internally provided with a No. 1 pressure plate and a No. 2 pressure plate capable of performing a clamping effect on the inspected component, a threaded sleeve with a hollow center, and an externally threaded rod installed in the threaded sleeve through a threaded structure, which can drive the No. 1 pressure plate to move axially when rotated relative to the threaded sleeve; and a hydraulic depth adjustment mechanism, internally provided with a No. 1 radial extension rod and a No. 2 radial extension rod respectively fixedly connected to the threaded sleeve and the No. 2 pressure plate, an axial hollow grip rod capable of moving axially along the rod body of the No. 1 radial extension rod and the No. 2 radial extension rod, and an elastic air film capable of locking the axial hollow grip rod on the rod body of the No. 1 radial extension rod and the No. 2 radial extension rod under the action of hydraulic pressure.

[0007] Preferably, the threaded clamping pressure mechanism also includes a No. 1 rotating shaft, an internal threaded hole is provided at the center of the threaded sleeve, an external threaded rod is installed inside the internal threaded hole through a threaded structure, one end of the external threaded rod is fixedly installed with a coupling, and the other end of the external threaded rod is internally installed with a rotatable No. 1 rotating shaft through a bearing, one end of the No. 1 rotating shaft is fixedly installed with a No. 1 pressure plate, the No. 2 pressure plate is located outside the pressure end of the No. 1 pressure plate, and one end of the No. 2 pressure plate is fixedly installed with a central fixed shaft, the threaded sleeve is provided with a No. 1 connecting plate which is an integral structure with the threaded sleeve on the outer circumferential surface close to the No. 1 pressure plate, and the No. 2 connecting plate is fixedly installed on the outside of the central fixed shaft.

[0008] Preferably, the threaded structure includes an internal threaded structure provided in the internal threaded hole and an external threaded structure provided on the rod body of the external threaded rod, and the internal threaded structure matches the external threaded structure.

[0009] Preferably, the axis line of the No. 1 pressure plate, the axis line of the No. 2 pressure plate and the axis line of the external threaded rod are on the same straight line.

[0010] Preferably, the hydraulic depth adjustment mechanism also includes two hollow sleeves, one end of the No. 1 radial extension rod and the No. 2 radial extension rod are respectively provided with a No. 3 connecting plate with an integral structure therewith, the No. 3 connecting plate at the end of the No. 1 radial extension rod is fixedly connected to the end of the No. 1 connecting plate, the No. 3 connecting plate at the end of the No. 2 radial extension rod is fixedly connected to the end of the No. 2 connecting plate, the other end of the No. 1 radial extension rod and the No. 2 radial extension rod are provided with an end limit plate with an integral structure therewith, the center of the hollow sleeve is provided with a sleeve which is placed on the periphery of the No. 1 radial extension rod and the No. 2 radial extension rod and can be moved along the No. 1 radial extension rod and The No. 2 radial extension rod has a movable hole for axial movement of the rod body, and the interior of the hollow sleeve is provided with an annular liquid compression chamber on the periphery of the middle area of ​​the rod body movable hole, and the hollow sleeve is embedded with an elastic air film located on the periphery of the No. 1 radial extension rod and the No. 2 radial extension rod at the intersection of the annular liquid compression chamber and the rod body movable hole, the outer circumferential surfaces of the two hollow sleeves are fixedly connected to the two ends of the axial hollow gripping rod, the interior of the axial hollow gripping rod is provided with a liquid flow hole connecting the two annular liquid compression chambers, and the outer circumferential surface of the axial hollow gripping rod is provided with a liquid compensation channel connecting the external space and the liquid flow hole and with a liquid valve installed inside.

[0011] Preferably, the elastic air membrane is made of a rubber material with elastic extension function, and the two open ends of the elastic air membrane are sealed and embedded in the corresponding ends of the hollow casing.

[0012] Preferably, it also includes a rotary drive mechanism, which is internally provided with a hollow disk body that can rotate under the action of a wrench, an inner rotating column that can drive the coupling to rotate, and an arc-shaped contact plate that can make the hollow disk body and the inner rotating column linked by friction.

[0013] Preferably, the rotary drive mechanism includes a hollow disk body and an inner rotating column, the upper end surface of the hollow disk body is provided with a hexagonal rotating head with an integral structure therewith, the center of the hollow disk body is provided with a cylindrical component mounting cavity, the center of the bottom end of the hollow disk body is provided with a shaft mounting hole, the shaft body of the No. 2 rotating shaft is mounted inside the shaft mounting hole through a bearing, the center of the cylindrical component mounting cavity is provided with an inner rotating column, the bottom center of the inner rotating column is provided with a shaft fixing groove for mounting the No. 2 rotating shaft, the bottom end of the No. 2 rotating shaft is fixedly mounted on the end of the coupling, and the hollow disk body is located at the A plurality of circular array-type transverse component movable cavities are provided on the periphery of the cylindrical component mounting cavity, and the transverse component movable cavities and the circumferential side surfaces of the cylindrical component mounting cavity are connected through the No. 1 shaft body through-hole, and the hollow disk body is provided with an inner movable plate capable of axially moving along the cylindrical component mounting cavity, and a coil spring is provided at one end of the inner movable plate, and a connecting shaft body passing through the No. 1 shaft body through-hole is fixedly installed on the other end of the inner movable plate, and an arc-shaped resistance plate that abuts against the circumferential surface of the inner rotating cylinder is fixedly installed on the end of the connecting shaft body located inside the cylindrical component mounting cavity.

[0014] Preferably, one end of the coil spring abuts against one end surface of the inner movable plate, and the other end abuts against one end surface of the movable cavity of the transverse member, and the coil spring is in a compressed state.

[0015] Preferably, the structural radius of the inner concave surface of the arc-shaped contact plate matches the structural radius of the inner rotating column.

[0016] Compared with the prior art, the present invention provides a pressure test device for reinforced liquid crystal display production, which has the following beneficial effects:

[0017] By adopting a two-point positioning method, the two symmetrical surfaces of the rectangular structure can be clamped, and the clamping thickness and depth are adjustable, thereby improving the applicability range of the equipment for the clamping space position. In addition, the device is easy to carry, thereby improving the flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0020] Figure 3 A three-dimensional diagram of the threaded clamping and pressing mechanism of the present invention;

[0021] Figure 4 is a three-dimensional cross-sectional view of the threaded clamping and pressing mechanism of the present invention;

[0022] Figure 5 A perspective view of the hydraulic depth adjustment mechanism of the present invention;

[0023] Figure 6 is a three-dimensional cross-sectional view of the hydraulic depth adjustment mechanism of the present invention;

[0024] Figure 7 is a three-dimensional cross-sectional view of the rotary drive mechanism of the present invention;

[0025] Figure 8 It is a three-dimensional combination diagram of the arc-shaped contact plate and the inner rotating column in the present invention.

[0026] Among them: 1. Threaded clamping pressure mechanism; 11. Threaded sleeve; 12. Internal threaded hole; 13. External threaded rod; 14. Coupling; 15. No. 1 rotating shaft; 16. No. 1 pressure plate; 17. No. 2 pressure plate; 18. Center fixed shaft; 19. No. 1 connecting plate; 110. No. 2 connecting plate; 2. Hydraulic depth adjustment mechanism; 21. No. 1 radial extension rod; 22. No. 2 radial extension rod; 23. Liquid compensation channel; 24. No. 3 connecting plate; 25. End limit plate; 26. Axial hollow Grip; 27. Hollow sleeve; 28. Rod movable hole; 29. ​​Annular liquid compression chamber; 210. Elastic air film; 211. Liquid flow hole; 3. Rotary drive mechanism; 31. Hollow disk; 32. Hexagonal rotating head; 33. Column component mounting chamber; 34. Shaft mounting hole; 35. Horizontal component movable chamber; 36. Shaft through hole; 37. Inner movable plate; 38. Coil spring; 39. Arc-shaped contact plate; 310. Inner rotating column; 311. Shaft fixing groove; 312. No. 2 rotating shaft. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1 and Figure 2 A pressure test device for reinforced liquid crystal display production needs to be used in conjunction with a liquid injection instrument, and the liquid injection instrument has the function of controlling the liquid output pressure.

[0029] To achieve the clamping function of the display reinforcement part, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, it is necessary to set up a threaded clamping and pressure mechanism 1, which is internally provided with a No. 1 pressure plate 16 and a No. 2 pressure plate 17 that can perform a clamping effect on the detected component, a threaded sleeve 11 with a hollow center, and an external threaded rod 13 installed in the threaded sleeve 11 through a threaded structure, and when it rotates relative to the threaded sleeve 11, it can drive the No. 1 pressure plate 16 to move axially, and the coupling 14 drives the external threaded rod 13 to rotate. Due to the connection of the threaded structure, the external threaded rod 13 will drive the No. 1 pressure plate 16 to move in a directional manner until the No. 1 pressure plate 16 and the No. 2 pressure plate 17 are clamped on the symmetrical sides of the detection structure. At this time, the pressure on the detection structure will be converted into an axial force between the threaded structures. This force can directly reflect the pressure resistance of the detection structure at this time, thereby realizing the clamping function of the reinforced part of the display screen.

[0030] For the specific structure of the threaded clamping and pressing mechanism 1, please refer to Figure 3 and Figure 4 , also includes a No. 1 rotating shaft 15, the center of the threaded sleeve 11 is provided with an internal threaded hole 12, the threaded sleeve 11 is installed with an external threaded rod 13 through a threaded structure inside the internal threaded hole 12, one end of the external threaded rod 13 is fixedly installed with a coupling 14, the other end of the external threaded rod 13 is internally installed with a rotatable No. 1 rotating shaft 15 through a bearing, one end of the No. 1 rotating shaft 15 is fixedly installed with a No. 1 pressure plate 16, the No. 2 pressure plate 17 is located outside the pressure end of the No. 1 pressure plate 16, and one end of the No. 2 pressure plate 17 is fixed A central fixed shaft 18 is fixedly installed, and the threaded sleeve 11 is provided with a No. 1 connecting plate 19 which is an integral structure with the threaded sleeve 11 on the outer circumferential surface near the No. 1 pressure plate 16. A No. 2 connecting plate 110 is fixedly installed on the outer side of the central fixed shaft 18. The threaded structure includes an internal threaded structure provided in the internal threaded hole 12 and an external threaded structure provided on the rod body of the external threaded rod 13, and the internal threaded structure matches the external threaded structure. The axial center line of the No. 1 pressure plate 16, the axial center line of the No. 2 pressure plate 17 and the axial center line of the external threaded rod 13 are on the same straight line.

[0031] To adjust the depth of detection, please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6, it is necessary to set up a hydraulic depth adjustment mechanism 2, which is provided with a No. 1 radial extension rod 21 and a No. 2 radial extension rod 22 fixedly connected to the threaded sleeve 11 and the No. 2 pressure plate 17 respectively, an axial hollow gripping rod 26 that can move axially along the rod body of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22, and an elastic air film 210 that can lock the axial hollow gripping rod 26 on the rod body of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 under the action of hydraulic pressure. During detection, the No. 1 pressure plate 16 and the No. 2 pressure plate 17 need to be clamped on the symmetrical sides of the detection structure. Therefore, the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 need to be inserted from the side of the display screen, and the edge structure of the display screen will be located in the area between the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22. According to the distance between the structure to be detected and the side of the display screen, the axial hollow grip 26 is moved to the periphery of the side of the display screen, and then a liquid injection instrument is used to inject liquid of rated pressure into the liquid flow hole 211 and the inside of the annular liquid compression chamber 29. Under the action of the hydraulic pressure, the elastic air film 210 will be wrapped and clamped at a certain pressure on the periphery of the rod body of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22, thereby realizing the locking function of the No. 1 radial extension rod 21, the No. 2 radial extension rod 22 and the axial hollow grip 26. When working, align the No. 1 pressure plate 16 and the No. 2 pressure plate 17 with the structure to be detected, and then hold the axial hollow grip 26 by hand to control the threaded sleeve 11, the No. 1 pressure plate 16 and the No. 2 pressure plate 17 to be in a static state, so as to realize the adjustment function of different detection depths.

[0032] For the specific structure of the hydraulic depth adjustment mechanism 2, please refer to Figure 5 and Figure 6, also includes two hollow sleeves 27, one end of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 is respectively provided with a No. 3 connecting plate 24 with an integral structure therewith, the No. 3 connecting plate 24 at the end of the No. 1 radial extension rod 21 is fixedly connected to the end of the No. 1 connecting plate 19, and the No. 3 connecting plate 24 at the end of the No. 2 radial extension rod 22 is fixedly connected to the end of the No. 2 connecting plate 110, and the other ends of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 are provided with an end limit plate 25 with an integral structure therewith, and the center of the hollow sleeve 27 is provided with a rod movable hole 28 which is sleeved on the outer periphery of the rod body of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 and can move axially along the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22, and the interior of the hollow sleeve 27 is in the rod movable hole. An annular liquid compression chamber 29 is provided on the periphery of the middle area of ​​the hole 28. The hollow sleeve 27 is embedded with an elastic air film 210 located on the periphery of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 at the intersection of the annular liquid compression chamber 29 and the rod body movable hole 28. The outer circumferential surfaces of the two hollow sleeves 27 are fixedly connected to the two ends of the axial hollow gripping rod 26. The interior of the axial hollow gripping rod 26 is provided with a liquid flow hole 211 connecting the two annular liquid compression chambers 29. The outer circumferential surface of the axial hollow gripping rod 26 is provided with a liquid compensation channel 23 connecting the external space and the liquid flow hole 211 and having a liquid valve installed inside. The elastic air film 210 is made of a rubber material with elastic extension function, and the two open ends of the elastic air film 210 are sealed and embedded in the corresponding ends of the hollow sleeve 27.

[0033] In order to more intuitively reflect whether the pressure tolerance of the contact structure meets the standard, please refer to Figure 1 、 Figure 2 、 Figure 7 and Figure 8 The cam 310 of the second end of the shaft 314 is engaged with the cam 311 of the second end of the shaft 312 and the cam 312 of the third end of the shaft 314.

[0034] For the specific structure of the rotary drive mechanism 3, please refer to Figure 7 and Figure 8 , including a hollow disk body 31 and an inner rotating column 310, the upper end surface of the hollow disk body 31 is provided with a hexagonal rotating head 32 with an integral structure therewith, the center of the hollow disk body 31 is provided with a cylindrical component mounting cavity 33, the bottom end center of the hollow disk body 31 is provided with a shaft mounting hole 34, the shaft of the No. 2 rotating shaft 42 is mounted inside the shaft mounting hole 34 through a bearing, the center of the cylindrical component mounting cavity 33 is provided with an inner rotating column 310, the bottom center of the inner rotating column 310 is provided with a shaft fixing groove 311 for mounting the No. 2 rotating shaft 312, the bottom end of the No. 2 rotating shaft 312 is fixedly mounted on the end of the coupling 14, the hollow disk body 31 is provided with a plurality of circular array-type transverse component active cavities 35 on the periphery of the cylindrical component mounting cavity 33, the transverse component active cavity 35 and the cylindrical component mounting cavity The circumferential side surfaces of 33 are connected through the No. 1 shaft through-hole 36, and the hollow disk body 31 is provided with an inner movable plate 37 capable of axially moving along the cylindrical component mounting cavity 33 inside the cylindrical component mounting cavity 33, and a coil spring 38 is provided at one end of the inner movable plate 37, and a connecting shaft passing through the No. 1 shaft through-hole 36 is fixedly installed at the other end of the inner movable plate 37, and an arc-shaped contact plate 39 that abuts against the circumferential surface of the inner rotating column 310 is fixedly installed at one end of the connecting shaft located inside the cylindrical component mounting cavity 33, one end of the coil spring 38 abuts against one end surface of the inner movable plate 37, and the other end abuts against one end surface of the transverse component movable cavity 35, and the coil spring 38 is in a compressed state, and the structural radius of the inner concave surface of the arc-shaped contact plate 39 matches the structural radius of the inner rotating column 310.

[0035] During use and detection, the No. 1 pressure plate 16 and the No. 2 pressure plate 17 need to be clamped on the symmetrical sides of the detection structure. Therefore, the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 need to be inserted from the side of the display screen, and the edge structure of the display screen will be located in the area between the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22. According to the distance between the structure to be detected and the side of the display screen, the axial hollow gripping rod 26 is moved to the periphery of the side of the display screen, and then a liquid injection instrument is used to inject liquid into the liquid flow hole 211. The liquid of rated pressure is injected into the annular liquid compression chamber 29. Under the action of hydraulic pressure, the elastic air film 210 will be clamped around the outer periphery of the No. 1 radial extension rod 21 and the No. 2 radial extension rod 22 with a certain pressure, thereby realizing the locking function of the No. 1 radial extension rod 21, the No. 2 radial extension rod 22 and the axial hollow gripping rod 26. The No. 1 pressure plate 16 and the No. 2 pressure plate 17 are aligned with the structure to be inspected, and then the axial hollow gripping rod 26 is held by hand to control the threaded sleeve 11, the No. 1 pressure plate 16 and the No. 2 pressure plate The plate 17 is in a stationary state. Use a wrench to screw the hexagonal rotating head 32. The hexagonal rotating head 32 drives the second rotating shaft 312 to rotate through the arc-shaped contact plate 39 and the inner rotating column 310, and then drives the coupling 14 to rotate. The coupling 14 drives the external threaded rod 13 to rotate. Due to the threaded structure connection, the external threaded rod 13 drives the first pressure plate 16 to move in a directional manner until the first pressure plate 16 and the second pressure plate 17 are clamped on the symmetrical sides of the detection structure. At this time, the pressure on the detection structure will be converted into The axial force between the threaded structures, when the screwing strength between the internal thread structure and the external thread structure is greater than the force formed by the maximum static friction between the internal rotating column 310 and the arc-shaped contact plate 39, the internal rotating column 310 and the arc-shaped contact plate 39 can no longer continue to be linked, and relative rotation occurs between the hollow disk 31 and the arc-shaped contact plate 39, which does not cause the torque resistance to continue to increase. By observing whether the structure being tested changes under the action of this pressure, it is reflected whether the pressure tolerance of the contact structure meets the standard.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pressure test device for reinforced liquid crystal display production, characterized by: include, A threaded clamping and pressure mechanism (1) is provided with a first pressure plate (16) and a second pressure plate (17) capable of clamping the inspected component, a threaded sleeve (11) with a hollow center, and an externally threaded rod (13) capable of driving the first pressure plate (16) to move axially when rotating relative to the threaded sleeve (11); and a hydraulic depth adjustment mechanism (2), which is provided with a first radial extension rod (21) and a second radial extension rod (22) fixedly connected to the threaded sleeve (11) and the second pressure plate (17), respectively, an axial hollow gripping rod (26) capable of moving axially along the rod bodies of the first radial extension rod (21) and the second radial extension rod (22), and an elastic air film (210) capable of locking the axial hollow gripping rod (26) on the rod bodies of the first radial extension rod (21) and the second radial extension rod (22) under the action of hydraulic pressure; The threaded clamping and pressing mechanism (1) further comprises a No. 1 rotating shaft (15), an internal threaded hole (12) is provided at the center of the threaded sleeve (11), an external threaded rod (13) is installed in the internal threaded hole (12) of the threaded sleeve (11) through a threaded structure, a coupling (14) is fixedly installed at one end of the external threaded rod (13), and a No. 1 rotating shaft (15) capable of rotating is installed in the other end of the external threaded rod (13) through a bearing, and the No. 1 rotating shaft (15) is fixedly installed in the internal threaded hole (12) of the threaded sleeve (11). 5) is fixedly mounted on one end of a pressure plate No. 1 (16), the pressure plate No. 2 (17) is located outside the pressure end of the pressure plate No. 1 (16), and a central fixed shaft (18) is fixedly mounted on one end of the pressure plate No. 2 (17), the threaded sleeve (11) is provided with a connecting plate No. 1 (19) which is an integral structure with the threaded sleeve (11) on the outer circumferential surface close to the pressure plate No. 1 (16), and the outer side of the central fixed shaft (18) is fixedly mounted with a connecting plate No. 2 (110); The hydraulic depth adjustment mechanism (2) further comprises two hollow sleeves (27), one end of the No. 1 radial extension rod (21) and the No. 2 radial extension rod (22) is respectively provided with a No. 3 connecting plate (24) with an integral structure therewith, the No. 3 connecting plate (24) at the end of the No. 1 radial extension rod (21) is fixedly connected to the end of the No. 1 connecting plate (19), the No. 3 connecting plate (24) at the end of the No. 2 radial extension rod (22) is fixedly connected to the end of the No. 2 connecting plate (110), the other ends of the No. 1 radial extension rod (21) and the No. 2 radial extension rod (22) are provided with an end limit plate (25) with an integral structure therewith, and the center of the hollow sleeve (27) is provided with a sleeve which is placed on the outer periphery of the No. 1 radial extension rod (21) and the No. 2 radial extension rod (22) and can be moved along the No. 1 radial extension rod (21) and the No. 2 radial extension rod (22). The rod (22) has a rod movable hole (28) for axial movement, and the interior of the hollow sleeve (27) is provided with an annular liquid compression chamber (29) on the periphery of the middle area of ​​the rod movable hole (28). The hollow sleeve (27) is embedded with an elastic air film (210) located on the periphery of the No. 1 radial extension rod (21) and the No. 2 radial extension rod (22) at the intersection of the annular liquid compression chamber (29) and the rod movable hole (28). The outer circumferential surfaces of the two hollow sleeves (27) are fixedly connected to the two ends of the axial hollow gripping rod (26). The interior of the axial hollow gripping rod (26) is provided with a liquid flow hole (211) connecting the two annular liquid compression chambers (29). The outer circumferential surface of the axial hollow gripping rod (26) is provided with a liquid compensation channel (23) connecting the external space and the liquid flow hole (211) and having a liquid valve installed therein.

2. The pressure-resistant test device for reinforced liquid crystal display production according to claim 1, characterized in that: The threaded structure comprises an internal threaded structure arranged in the internal threaded hole (12) and an external threaded structure arranged on the rod body of the external threaded rod (13), and the internal threaded structure matches the external threaded structure.

3. The pressure-resistant test device for reinforced liquid crystal display production according to claim 2, characterized in that: The axis center line of the No. 1 pressure plate (16), the axis center line of the No. 2 pressure plate (17) and the axis center line of the external threaded rod (13) are on the same straight line.

4. The pressure-resistant test device for reinforced liquid crystal display production according to claim 3, characterized in that: The elastic air membrane (210) is made of a rubber material with elastic extension function, and the two open ends of the elastic air membrane (210) are sealed and embedded in the corresponding ends of the hollow casing (27).

5. The pressure-resistant test device for reinforced liquid crystal display production according to claim 4, characterized in that: The invention also includes a rotary drive mechanism (3), which is internally provided with a hollow disk (31) capable of rotating under the action of a wrench, an inner rotating column (310) capable of driving the coupling (14) to rotate, and an arc-shaped contact plate (39) capable of linking the hollow disk (31) and the inner rotating column (310) by means of friction.

6. The pressure-resistant test device for reinforced liquid crystal display production according to claim 5, characterized in that: The rotary drive mechanism (3) includes a hollow disk (31) and an inner rotating column (310), the upper end surface of the hollow disk (31) is provided with a hexagonal rotating head (32) with an integral structure therewith, the center of the hollow disk (31) is provided with a columnar component mounting cavity (33), the bottom center of the hollow disk (31) is provided with a shaft mounting hole (34), the shaft of the second rotating shaft (312) is mounted inside the shaft mounting hole (34) through a bearing, the center of the columnar component mounting cavity (33) is provided with an inner rotating column (310), the bottom center of the inner rotating column (310) is provided with a shaft fixing groove (311) for mounting the second rotating shaft (312), the bottom end of the second rotating shaft (312) is fixedly mounted on the end of the coupling (14), the hollow disk (31) A plurality of circular array-type transverse component movable cavities (35) are provided on the periphery of the cylindrical component mounting cavity (33), and the transverse component movable cavities (35) and the circumferential side surfaces of the cylindrical component mounting cavity (33) are connected through the No. 1 shaft body through-hole (36). The hollow disk (31) is provided with an inner movable plate (37) capable of axial movement along the cylindrical component mounting cavity (33) inside the cylindrical component mounting cavity (33), a coil spring (38) is provided at one end of the inner movable plate (37), and a connecting shaft passing through the No. 1 shaft body through-hole (36) is fixedly installed at the other end of the inner movable plate (37), and an arc-shaped contact plate (39) that contacts the circumferential surface of the inner rotating column (310) is fixedly installed at one end of the connecting shaft inside the cylindrical component mounting cavity (33).

7. The pressure-resistant test device for reinforced liquid crystal display production according to claim 6, characterized in that: One end of the coil spring (38) abuts against one end surface of the inner movable plate (37), and the other end abuts against one end surface of the transverse component movable cavity (35), and the coil spring (38) is in a compressed state.

8. The pressure-resistant test device for reinforced liquid crystal display production according to claim 7, characterized in that: The structural radius of the inner concave surface of the arc-shaped contact plate (39) matches the structural radius of the inner rotating column (310).

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