A bidirectional latch control structure

Abstract

This application relates to a bidirectional latch control structure, belonging to the technical field of door and window locking devices. It includes a first mounting housing containing a first transmission component for connecting to and controlling the relative movement of the bidirectional latch head. A visual cover with an adjustment hole is provided on the first mounting housing. It also includes a second mounting housing containing a second transmission component connected to the first transmission component via the adjustment hole. The second transmission component drives the first transmission component. The visual cover is located between the first and second mounting housings, which are detachably connected. This application offers more efficient and convenient maintenance, simplifies repair procedures, reduces the need for disassembling the transmission box from doors and windows, reduces damage to doors and windows, improves the stability of doors and windows during long-term use, and extends the service life of the transmission box and the doors and windows.

Description

Technical Field

[0001] This application relates to the field of door and window locking device technology, and in particular to a two-way latch control structure. Background Technology

[0002] A two-way bolt lock is a common door and window locking device. A two-way bolt lock typically includes an upper bolt head, a lower bolt head, a transmission box, and a handle. The user operates the handle, which drives the transmission mechanism inside the transmission box, causing the upper and lower bolt heads to move relative to each other. This allows the upper and lower bolt heads to insert into / remove from the lock holes at the top and bottom of the door frame, respectively, thus locking or unlocking the door.

[0003] Existing transmission boxes and handles mostly adopt integrated designs. For example, a two-way bolt lock disclosed in announcement number CN204357227U and a transmission box for a two-way bolt lock disclosed in announcement number CN210343020U have a left-right mating shell, which integrates transmission parts and completes the driving operation through the handle.

[0004] While this design facilitates production and installation, during use, when malfunctions such as jamming or transmission failure occur in the transmission box or handle, direct location and troubleshooting are impossible because the transmission box and handle are inseparable. The entire transmission box must be disassembled and the housing completely opened to identify the fault. Furthermore, the upper and lower latches must first be detached from the door frame, and then the transmission box must be completely removed from the door body before it can be disassembled and inspected.

[0005] Therefore, the existing transmission box and handle structure not only have problems of inconvenient maintenance and complicated operation, but also the transmission box is usually fixed in the pre-installed cavity inside the door body by screws. Disassembly can easily cause the internal structure of the door to loosen or be damaged, affecting the overall stability of the door and its subsequent performance. Utility Model Content

[0006] In order to achieve more efficient and convenient maintenance, simplify the maintenance process, reduce the need to remove the transmission box from the door and window, reduce damage to the door and window, improve the stability of the door and window under long-term use, and extend the service life of the transmission box and the door and window, this application provides a bidirectional latch control structure.

[0007] The bidirectional latch control structure provided in this application adopts the following technical solution:

[0008] A bidirectional pin control structure includes a first mounting shell, a first transmission component is disposed inside the first mounting shell, the first transmission component is used to connect with an upper pin head and a lower pin head, and control the upper pin head and the lower pin head to move relative to each other, and a visual cover is disposed on the first mounting shell, the visual cover having an adjustment hole.

[0009] It also includes a second mounting housing, in which a second transmission component is disposed. The second transmission component is connected to the first transmission component through the adjustment hole, and the second transmission component is used to drive the first transmission component to operate.

[0010] The visualization cover is located between the first mounting shell and the second mounting shell, which are detachably connected.

[0011] By adopting the above technical solution, the modular control structure breaks down the maintenance of the complex overall transmission box into the maintenance of independent modules. When the bidirectional pins experience jamming or failure, only the second mounting shell needs to be quickly disassembled. Through the visual cover, it is possible to intuitively determine whether there is a fault point in the first mounting shell and to locate the fault point. If there is a fault point in the first mounting shell, it is further determined whether the first mounting shell needs to be removed from the door or window. If not, only the visual cover needs to be removed and the corresponding tools can be used to repair it directly on the door or window. If there is no fault point in the first mounting shell, it can be determined that the fault is in the second mounting shell. In this case, it is also unnecessary to disassemble the first mounting shell; the second mounting shell can be repaired directly. This modular and visual control structure avoids the cumbersome process of first disassembling the whole structure and then checking and repairing it layer by layer in the traditional structure. It realizes the process of checking the fault first and then repairing, which is conducive to improving the efficiency of fault location and the convenience of maintenance operations.

[0012] Optionally, the first transmission assembly includes a gear set, which is installed inside the first mounting housing. Two first racks are also slidably disposed inside the first mounting housing. The gear set meshes with the first racks. Each of the two first racks is connected to a moving block. A connecting groove is provided on the moving block. A connecting sleeve is connected to the moving block. Each of the two connecting sleeves extends out from one end of the first mounting housing.

[0013] When the gear set is in operation, the two first racks move relative to each other;

[0014] The second transmission component is connected to one of the moving blocks via one of the connecting slots and controls the movement of the moving block.

[0015] By adopting the above technical solution, the second transmission component drives the moving block to move through the connecting groove. The moving block drives the first rack to move, the first rack drives the gear set to operate, and the gear set drives another first rack to move, thereby realizing the relative movement of the two moving blocks. The moving block drives the connecting sleeve to move, thereby realizing the relative movement of the upper and lower pins respectively driven by the two connecting sleeves, thereby realizing the locking and unlocking of the doors and windows.

[0016] Optionally, the first mounting shell is provided with a guide groove, which is opened along the length direction of the first mounting shell, and the movable block is provided with a guide protrusion, which slides on the guide groove.

[0017] By adopting the above technical solution, the combination design of guide protrusion and guide groove can not only achieve smooth movement control of the moving block, but also effectively limit and achieve stable guiding constraint, avoid the phenomenon of movement jamming of the moving block, maintain the continuity and stability of movement, and the guide protrusion and guide groove can further reduce the frictional wear between the moving block and the first mounting shell, and extend the service life of the moving block and the first mounting shell.

[0018] Optionally, the gear set includes four first gears, which are rotatably disposed within the first mounting housing. The four first gears are connected in series and mesh sequentially. Two first racks are located on the same side within the first mounting housing. The first gear near one end of the moving block meshes with the first rack connected to the moving block.

[0019] By adopting the above technical solution, the four first gears are designed to mesh in series to form a multi-stage transmission structure. This structure effectively distributes the load, reduces the force on each first gear, significantly slows down tooth surface wear, and greatly extends service life.

[0020] Optionally, the second transmission assembly includes a handle, a rotating shaft is rotatably disposed inside the second mounting housing, the handle is fixedly connected to the rotating shaft, a second gear is coaxially disposed on the rotating shaft, a second rack is also disposed inside the second mounting housing, the second rack is meshed with the second gear, a connecting block is disposed on the side of the second rack opposite to the second gear, and the connecting block is connected to the first transmission assembly through the adjustment hole.

[0021] By adopting the above technical solution, when the handle is turned, the handle drives the rotating shaft to rotate, the rotating shaft drives the second gear to rotate, the second gear drives the second rack to move, so that the second rack drives the connecting block to move, and the connecting block controls the first transmission component to drive the upper and lower pins to move relative to each other.

[0022] Optionally, a stepped groove is provided on one side of the second mounting housing, the second rack is located in the stepped groove, a recess is provided in the stepped groove, the second gear is located in the recess, a maintenance cover is provided on the stepped groove, the second rack and the maintenance cover together cover the recess, and the maintenance cover cooperates with the stepped groove to allow the second rack to slide on the second mounting housing.

[0023] By adopting the above technical solution, the maintenance cover covers the groove, allowing the second rack in the stepped groove to slide stably on the second mounting shell;

[0024] Meanwhile, when the second transmission component jams or malfunctions, the maintenance cover can be opened quickly, and the second rack and second gear can be directly removed and replaced. The structure is simple, convenient and quick, which helps to improve the maintenance efficiency of the pin control structure.

[0025] In addition, the maintenance cover can prevent dust, debris and other contaminants from entering the interior of the second transmission assembly, avoid wear between the second gear and the second rack, ensure the stability of the meshing transmission between the second gear and the second rack, and extend the service life of the components.

[0026] Optionally, springs are provided on both sides of the rotating shaft, and balls are fixedly connected to the springs. A circular groove is provided on the handle. The side of the ball away from the spring can be inserted into the circular groove. When the pin is in the locked state, one of the balls is inserted into the circular groove. When the pin is in the unlocked state, the other ball is inserted into the circular groove.

[0027] By adopting the above technical solution, the circular groove on the handle cooperates with the ball to achieve the physical positioning of the two-way locking / unlocking state of the latch, avoiding the latch from disengaging from its original state due to vibration or external force.

[0028] When the handle is in operation, the ball needs to overcome the spring resistance to disengage from the circular groove. Continue to turn the handle until it is in place. Once in place, the other ball will automatically engage with the circular groove under the action of the spring, producing a "click" feedback. If the handle is not turned into place, no operation reminder will be generated. You need to continue turning the handle until the operation reminder is generated. This ensures that the user can intuitively perceive the locking / unlocking status of the two-way latch and effectively avoids the risk of latch failure caused by improper handle operation.

[0029] Optionally, at least two mounting holes are provided in the stepped groove, the spring corresponds to each mounting hole, the spring is located in the corresponding mounting hole, and the side of the ball away from the spring extends out from one end of the mounting hole, and the maintenance cover covers the other end of the mounting hole.

[0030] By adopting the above technical solution, the mounting hole is located within the coverage area of ​​the maintenance cover, which can be quickly removed. When replacing the spring, there is no need to disassemble the main structure. Simply open the maintenance cover to directly remove the failed spring and insert the new part to complete the replacement or repair, which not only greatly shortens the maintenance time.

[0031] Optionally, the visualization cover has an oil injection hole facing the gear set, and the oil injection hole is equipped with a sealing plug.

[0032] By adopting the above technical solution, when the first transmission component malfunctions due to insufficient lubrication, the visual cover is equipped with a dedicated oil injection hole. Without disassembling the visual cover, only the sealing plug needs to be removed to conveniently and quickly inject lubricating oil. After injection, the operation of the first transmission component automatically drives the lubricating oil to spread evenly to each component, ensuring that the lubrication effect is fully utilized.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. The modular and visualized control structure breaks down the maintenance of the complex overall transmission box into the maintenance of independent modules. When the bidirectional pins are stuck or fail, only the second mounting shell needs to be quickly removed. Through the visualized top cover, it is possible to intuitively determine whether there is a fault point in the first mounting shell and to locate the fault point. If there is a fault point in the first mounting shell, it is further determined whether the first mounting shell needs to be removed from the door or window. If not, only the visualized top cover needs to be removed and the corresponding tools can be used to repair it directly on the door or window. If there is no fault point in the first mounting shell, it can be determined that the fault is in the second mounting shell. At this time, it is also unnecessary to remove the first mounting shell; the second mounting shell can be repaired directly. This modular and visualized control structure avoids the cumbersome process of first disassembling the whole structure and then checking and repairing it layer by layer in the traditional structure. It realizes the process of first checking the fault and then repairing, improving the efficiency of fault location and the convenience of maintenance operation.

[0035] 2. The maintenance cover covers the recessed groove, allowing the second rack in the stepped groove to slide stably on the second mounting shell. At the same time, when the second transmission component jams or malfunctions, the maintenance cover can be quickly opened, allowing the second rack and second gear to be directly removed and replaced. The structure is simple, convenient, and quick, which helps improve the maintenance efficiency of the pin control structure. In addition, the maintenance cover can prevent dust, debris, etc. from entering the interior of the second transmission component, avoiding wear between the second gear and the second rack, ensuring the stability of the meshing transmission between the second gear and the second rack, and extending the service life of the components.

[0036] 3. When the first transmission component malfunctions due to insufficient lubrication, the visual cover is equipped with a dedicated oil injection hole. Without disassembling the visual cover, simply remove the sealing plug to quickly and easily inject lubricating oil. After injection, the operation of the first transmission component will automatically drive the lubricating oil to spread evenly to all parts, ensuring that the lubrication effect is fully utilized. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0038] Figure 2 This is a schematic diagram of the structure of the first mounting shell and the first transmission assembly in Embodiment 1 of this application.

[0039] Figure 3 This is a schematic diagram of the structure of the top cover used to illustrate the visualization of the present application in Embodiment 1.

[0040] Figure 4 This is a schematic diagram of the structure of the second mounting shell and the second transmission assembly, as shown in Embodiment 1 of this application.

[0041] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0042] Figure 6 This is a schematic diagram of the structure of the second transmission component used in Embodiment 1 of this application.

[0043] Figure 7 This is a schematic diagram of the structure of the top cover used to illustrate the visualization of the present application in Embodiment 2.

[0044] Explanation of reference numerals in the attached drawings: 1. First mounting shell; 11. Guide groove; 12. First receiving groove; 13. Partition protrusion; 2. First transmission assembly; 21. Gear set; 22. First gear; 23. First rack; 24. Moving block; 25. Connecting groove; 26. Connecting sleeve; 27. Guide protrusion strip; 3. Visual top cover; 31. Adjustment hole; 32. Oil filling hole; 33. Sealing plug; 4. Second mounting shell; 41. Stepped groove; 42. Embedded groove; 43. Maintenance cover; 44. Spring; 45. Ball; 46. Mounting hole; 47. Second receiving groove; 5. Second transmission assembly; 51. Handle; 52. Rotating shaft; 53. Second gear; 54. Second rack; 55. Connecting block; 56. Circular groove. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0046] This application discloses a bidirectional latch control structure.

[0047] like Figure 1 The bidirectional pin control structure includes a first mounting shell 1, and a first transmission component 2 is provided inside the first mounting shell 1. The first transmission component 2 is used to connect with the upper pin head and the lower pin head, and control the upper pin head and the lower pin head to move relative to each other.

[0048] In this embodiment, a first receiving groove 12 for accommodating the first transmission component 2 is provided in the first mounting shell 1. The first transmission component 2 includes two connecting sleeves 26, each of which extends from one end of the first mounting shell 1. An upper pin and a lower pin are fixedly connected to the opposite ends of the two connecting sleeves 26, and a moving block 24 is fixedly connected to the close ends of the two connecting sleeves 26. A first rack 23 is fixedly connected to the end of the moving block 24 away from the connecting sleeves 26. The connecting sleeves 26, the moving block 24, and the first rack 23 are integrally formed. The two first racks 23 are located inside the first mounting shell 1, and are arranged close to the same inner sidewall of the first mounting shell 1, and are arranged opposite to each other.

[0049] like Figure 2 The first transmission assembly 2 also includes a gear set 21, which is located in the middle of the first mounting housing 1. The first rack 23 is meshed with the gear set 21. The gear set 21 includes four first gears 22, which are arranged sequentially along the length of the first mounting housing 1. Adjacent first gears 22 mesh with each other. The two outermost first gears 22 each mesh with a first rack 23. The first mounting housing 1 is provided with a partition protrusion 13, which is located between the two middle first gears 22 and the first rack 23, restricting the two middle first gears 22 from meshing with the first rack 23. The four first gears 22 are symmetrically arranged about the center line of the length direction of the first mounting housing 1.

[0050] In other embodiments, the connecting sleeve 26 and the moving block 24 may also be threaded. The number of first gears 22 in the gear set 21 may also be other numbers. When the number of first gears 22 is odd, the two first racks 23 are located on different sides of the first mounting shell 1. When the number of first gears 22 is even, the two first racks 23 are located on the same side of the first mounting shell 1.

[0051] The movable block 24 has a connecting groove 25. In this embodiment, the connecting groove 25 is rectangular. In other embodiments, the connecting groove 25 may be other shapes, such as triangular grooves or cylindrical grooves.

[0052] A guide groove 11 is provided inside the first mounting shell 1, and the guide groove 11 is opened along the length direction of the first mounting shell 1. A guide protrusion 27 is provided on the moving block 24, and the guide protrusion 27 slides on the guide groove 11. In this embodiment of the application, the first mounting shell 1 has three guide grooves 11. One guide groove 11 is located on the side of the first mounting shell 1 near the first rack 23, and this guide groove 11 extends from one end of the first mounting shell 1 to the other end of the first mounting shell 1. The other two guide grooves 11 are located at one end of the first mounting shell 1 and have the same length. These two guide grooves 11 are arranged opposite to the longest guide groove 11.

[0053] Each movable block 24 has two guide protrusions 27 on the side facing the first receiving groove 12. One of the guide protrusions 27 extends to the side of the first rack 23 near the first receiving groove 12 and is located in the longest guide groove 11. The other two guide protrusions 27 are located in the shorter guide grooves 11. In other embodiments, the number of guide protrusions 27 and guide grooves 11 can be other numbers, and the guide protrusions 27 correspond one-to-one with the guide grooves 11.

[0054] like Figure 1 and Figure 3 A visualization cover 3 is provided on the first mounting shell 1, and an adjustment hole 31 is provided on the visualization cover 3. The visualization cover 3 is located between the first mounting shell 1 and the second mounting shell 4. In this embodiment, the visualization cover 3 is a transparent cover, and the visualization cover 3 is connected to the first mounting shell 1 by bolts. The adjustment hole 31 is an oblong adjustment hole 31, and the position of the adjustment hole 31 is opposite to the position of the connecting groove 25. The width of the adjustment hole 31 is the same as that of the connecting groove 25, and the length of the adjustment hole 31 is greater than the length of the connecting groove 25. In other embodiments, the shape of the adjustment hole 31 can also be other shapes, such as rectangular or circular. The adjustment hole 31 cooperates with the connecting groove 25.

[0055] like Figure 1 , Figure 4 and Figure 5 It also includes a second mounting shell 4, which is detachably connected to the first mounting shell 1. A second transmission assembly 5 is disposed within the second mounting shell 4. Specifically, in this embodiment, the first mounting shell 1 and the second mounting shell 4 are bolted together. A second receiving groove 47 is formed within the second mounting shell 4, located on the side opposite to the visualization cover 3. A stepped groove 41 is formed on the side of the second mounting shell 4 facing the first mounting shell 1, extending to the side of the second mounting shell 4 perpendicular to the first mounting shell 1. An insert 42 is formed within the stepped groove 41, and the direction of the insert 42 is parallel to that of the visualization cover 3.

[0056] like Figure 4 and Figure 5The second transmission assembly 5 includes a handle 51, which is located in the second receiving groove 47 and has sufficient space to rotate up and down. A rotating shaft 52 is rotatably connected inside the second mounting housing 4. The handle 51 is fixedly connected to the rotating shaft 52. The rotating shaft 52 is keyed to the second gear 53. The rotating shaft 52 and the second gear 53 are located inside the groove 42. The second gear 53 is meshed with the second rack 54. The second rack 54 is located in the stepped groove 41, and the side of the second rack 54 facing away from the second gear 53 is parallel to the visible top cover 3. A connecting block 55 is fixed to the side of the second rack 54 away from the second gear 53. The connecting block 55 is cuboid in shape. A maintenance cover 43 is provided on the stepped groove 41. The maintenance cover 43 is connected to the second mounting shell 4 by bolts. The maintenance cover 43 covers the teeth of the second gear 53, the rotating shaft 52, and the second rack 54. The maintenance cover 43 cooperates with the stepped groove 41 to allow the second rack 54 to slide on the second mounting shell 4. In other embodiments, the shape of the connecting block 55 can also be other shapes. The connecting block 55 can be cuboid or cylindrical. The connecting block 55 is adapted to the connecting groove 25 through the adjustment hole 31.

[0057] like Figure 5 and Figure 6 Springs 44 are provided on both sides of the rotating shaft 52. A ball 45 is fixedly connected to the spring 44. A circular groove 56 is provided on the handle 51. The side of the ball 45 away from the spring 44 can be inserted into the circular groove 56. At least two mounting holes 46 are opened in the stepped groove 41, and the spring 44 is located in the corresponding mounting hole 46. In this embodiment, two mounting holes 46 are provided in the stepped groove 41. The two mounting holes 46 are located on both sides of the rotating shaft 52 and are symmetrically distributed with the rotating shaft 52 as the axis of symmetry. Two balls 45 are slidably disposed in one mounting hole 46, and the inner diameter of the mounting hole 46 near the handle 51 is smaller than the outer diameter of the ball 45 to limit the ball 45 from sliding out of the mounting hole 46. The spring 44 corresponds to the mounting hole 46 one by one and is connected to the ball 45. The maintenance cover 43 covers the mounting hole 46. The part of the ball 45 away from the spring 44 extends into the second receiving groove 47. When the bidirectional pin is in the locked state, one of the balls 45 is inserted into the circular groove 56. When the handle 51 is turned to unlock the bidirectional latch, another ball 45 is inserted into the circular groove 56. In other embodiments, the number of springs 44 and balls 45 can also be multiple sets, and the positions of springs 44 and balls 45 can also be distributed in other positions of the second mounting shell 4, arranged on both sides of the rotating shaft 52, and cooperate with the circular groove 56 on the handle 51.

[0058] The implementation principle of this application embodiment is as follows: the modular and visualized control structure breaks down the maintenance of the complex overall transmission box into the maintenance of independent modules. When the bidirectional pins are stuck or fail, only the second mounting shell 4 needs to be quickly disassembled. Through the visualized top cover 3, it can be intuitively determined whether there is a fault point in the first mounting shell 1 and whether the fault point is located in the first mounting shell 1 or the second mounting shell 4. This modular and visualized control structure avoids the cumbersome process of first disassembling the whole structure and then checking and repairing layer by layer in the traditional structure. It realizes the process of checking the fault first and then repairing, which improves the efficiency of fault location and the convenience of maintenance operation.

[0059] Example 2

[0060] Reference Figure 7 The difference between this embodiment and embodiment 1 is that an oil injection hole 32 is provided on the visual cover 3, the oil injection hole 32 is directly opposite the gear set 21, and a sealing plug 33 is provided on the oil injection hole 32. That is, in this embodiment, the position of the oil injection hole 32 is directly opposite the gear set 21, and the number of oil injection holes 32 is the same as the number of the first gear 22. The oil injection hole 32 and the sealing plug 33 are sealed by pressing. In other embodiments, the position of the oil injection hole 32 can be at the meshing point of the first rack 23 and the first gear 22, and the number of oil injection holes 32 can also be other numbers. The operation of the first rack 23 and the first gear 22 automatically drives the lubricating oil to spread evenly to each component. The connection method of the oil injection hole 32 and the sealing plug 33 can also be bolt connection.

[0061] The implementation principle of Example 2 is as follows: The visualization cover 3 is provided with an oil injection hole 32. When the first transmission component 2 is not damaged but lacks lubricating oil, there is no need to disassemble the visualization cover 3. Only the sealing plug 33 needs to be removed to conveniently and quickly inject lubricating oil. After injection, the operation of the first transmission component 2 will automatically drive the lubricating oil to spread evenly to each component, ensuring that the lubrication effect is fully utilized.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bidirectional pin control structure, characterized in that: Includes a first mounting shell (1), in which a first transmission assembly (2) is provided. The first transmission assembly (2) is used to connect with the upper pin head and the lower pin head and control the upper pin head and the lower pin head to move relative to each other. A visual cover (3) is provided on the first mounting shell (1), and an adjustment hole (31) is provided on the visual cover (3). It also includes a second mounting shell (4), in which a second transmission assembly (5) is provided. The second transmission assembly (5) is connected to the first transmission assembly (2) through the adjustment hole (31). The second transmission assembly (5) is used to drive the first transmission assembly (2) to operate. The visualization cover (3) is located between the first mounting shell (1) and the second mounting shell (4), and the first mounting shell (1) and the second mounting shell (4) are detachably connected.

2. The bidirectional pin control structure according to claim 1, characterized in that: The first transmission assembly (2) includes a gear set (21), which is installed in the first mounting housing (1). Two first racks (23) are also slidably arranged in the first mounting housing (1). The gear set (21) meshes with the first racks (23). Each of the two first racks (23) is connected to a moving block (24). A connecting groove (25) is provided on the moving block (24). A connecting sleeve (26) is connected to the moving block (24). Each of the two connecting sleeves (26) extends out from one end of the first mounting housing (1). When the gear set (21) is in operation, the two first racks (23) move relative to each other; The second transmission component (5) is connected to one of the moving blocks (24) via one of the connecting slots (25) and controls the movement of the moving block (24).

3. The bidirectional pin control structure according to claim 2, characterized in that: The first mounting shell (1) is provided with a guide groove (11), which is opened along the length direction of the first mounting shell (1). The moving block (24) is provided with a guide protrusion (27), which slides on the guide groove (11).

4. The bidirectional pin control structure according to claim 2, characterized in that: The gear set (21) includes four first gears (22), which are rotatably disposed in the first mounting housing (1). The four first gears (22) are connected in series and mesh in sequence. Two first racks (23) are located on the same side inside the first mounting housing (1). The first gear (22) near the end of the moving block (24) meshes with the first rack (23) connected to the moving block (24).

5. The bidirectional pin control structure according to claim 1, characterized in that: The second transmission assembly (5) includes a handle (51), a rotating shaft (52) is rotatably disposed inside the second mounting housing (4), the handle (51) is fixedly connected to the rotating shaft (52), a second gear (53) is coaxially disposed on the rotating shaft (52), a second rack (54) is also disposed inside the second mounting housing (4), the second rack (54) is meshed with the second gear (53), a connecting block (55) is disposed on the side of the second rack (54) away from the second gear (53), and the connecting block (55) is connected to the first transmission assembly (2) through the adjusting hole (31).

6. The bidirectional pin control structure according to claim 5, characterized in that: A stepped groove (41) is provided on one side of the second mounting shell (4), the second rack (54) is located in the stepped groove (41), a groove (42) is provided in the stepped groove (41), the second gear (53) is located in the groove (42), a maintenance cover (43) is provided on the stepped groove (41), the second rack (54) and the maintenance cover (43) together cover the groove (42), the maintenance cover (43) cooperates with the stepped groove (41) to make the second rack (54) slide on the second mounting shell (4).

7. The bidirectional pin control structure according to claim 6, characterized in that: Springs (44) are provided on both sides of the rotating shaft (52). A ball (45) is fixedly connected to the spring (44). A circular groove (56) is provided on the handle (51). The side of the ball (45) facing away from the spring (44) can be inserted into the circular groove (56). When the pin is in the locked state, one of the balls (45) is inserted into the circular groove (56). When the pin is in the unlocked state, the other ball (45) is inserted into the circular groove (56).

8. The bidirectional pin control structure according to claim 7, characterized in that: At least two mounting holes (46) are provided in the stepped groove (41). The spring (44) corresponds to the mounting hole (46) one by one. The spring (44) is located in the corresponding mounting hole (46), and the ball (45) extends from one end of the mounting hole (46) away from the spring (44). The maintenance cover (43) covers the other end of the mounting hole (46).

9. The bidirectional pin control structure according to claim 2, characterized in that: The visualization cover (3) has an oil injection hole (32) facing the gear set (21), and the oil injection hole (32) is provided with a sealing plug (33).

Images