Vehicle-mounted small table board convenient to store

Abstract

The application discloses a small vehicle-mounted table board convenient to store, which comprises a fixed base, a supporting column fixed on the fixed base, a rotating sleeve, a rotating arm and a table board. The bottom of the rotating sleeve is rotationally connected with the supporting column, and the rotating sleeve can rotate relative to the supporting column. The rotating arm has oppositely arranged first and second end portions, the first end portion is rotationally connected with the rotating sleeve, and the rotating arm can rotate relative to the rotating sleeve. The second end portion of the rotating arm is movably connected with the table board. The small vehicle-mounted table board can store the table board when the small vehicle-mounted table board is idle, so that the table board does not occupy much space when the small vehicle-mounted table board is idle.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a portable in-vehicle table that is easy to store. Background Technology

[0002] With the widespread use of cars, people's lives have been greatly impacted, for example, by improving travel convenience and promoting the development of surrounding tourism. However, due to the limited space in cars, the interior is generally only equipped with seats for passengers. If one needs to work or study in the car, they can only lie on the seat or place office supplies such as computers on the seat, which brings inconvenience to the user's work or study.

[0003] To facilitate working or studying in cars, car tray tables are now commonly installed. These typically consist of a base and a tray fixed to it, which is then secured to the car's center console. However, current tray tables are directly fixed to the base, meaning they cannot be folded away on the center console when not in use, resulting in them taking up considerable space. Summary of the Invention

[0004] This application provides a conveniently foldable vehicle tray table to solve the technical problem of inconvenient tray table storage in the prior art. The technical solution is as follows:

[0005] In one embodiment, this application provides a conveniently foldable vehicle-mounted table, comprising:

[0006] A fixed base, on which a supporting column is fixed;

[0007] A rotating sleeve, the bottom of which is rotatably connected to the support column, and the rotating sleeve is capable of rotating relative to the support column;

[0008] A rotating arm having a first end and a second end disposed opposite to each other, the first end being rotatably connected to the rotating sleeve, and the rotating arm being rotatable relative to the rotating sleeve;

[0009] The tabletop is movably connected to the second end of the rotating arm.

[0010] In one embodiment, a rotary locking mechanism is further included. The support column has a fixed sleeve, and the bottom of the rotary sleeve has a rotary connecting sleeve. The rotary connecting sleeve is sleeved on the fixed sleeve. The rotary locking mechanism is connected to the fixed sleeve and the rotary connecting sleeve, and the rotary connecting sleeve is locked to the fixed sleeve through the rotary locking mechanism.

[0011] In one embodiment, the rotary locking mechanism includes an unlocking button and a positioning component. A base plate is installed at the bottom of the rotary sleeve, and a positioning hole is provided on the base plate. The unlocking button is movably connected to the base plate through the positioning hole, and the unlocking button can move relative to the base plate towards or away from the fixed sleeve. The positioning component is movably connected to the fixed sleeve, and the positioning component has a positioning bead, which can pass through the rotary connecting sleeve and move towards or away from the positioning hole.

[0012] In one embodiment, the unlock button has a positioning plate, and the inner wall of the positioning hole has a positioning protrusion protruding towards the center of the positioning hole. The unlock button is movably connected to the base plate through the positioning plate and the positioning protrusion.

[0013] In one embodiment, the easily foldable vehicle-mounted table further includes a damping sleeve, which is fixed inside the rotating connecting sleeve. The end of the damping sleeve has a limiting protrusion, and a limiting groove is formed at the end of the fixed sleeve along the circumferential direction of the fixed sleeve. The limiting protrusion is located in the limiting groove and can move within the limiting groove.

[0014] In one embodiment, the damping sleeve has a positioning strip on its outer peripheral surface, and the rotating connecting sleeve has a positioning groove on its inner wall, with the positioning strip located within the positioning groove.

[0015] In one embodiment, the tabletop includes a first folding plate and a second folding plate, the first folding plate and the second folding plate being hinged together, the first folding plate being foldable relative to the second folding plate, and the rotating arm being movably connected to the second folding plate.

[0016] In one embodiment, an adjustment groove is provided at the second end of the rotating arm, the adjustment groove extends along the length direction of the rotating arm, a fixing post is fixed on the table, a threaded hole is provided in the middle of the fixing post, the table is threadedly connected to the threaded hole by a bolt, the bolt is located in the adjustment groove, and the bolt moves within the adjustment groove.

[0017] In one embodiment, the easily foldable vehicle-mounted table also includes a lifting sleeve, a rotating sleeve fitted onto the lifting sleeve, the top of the lifting sleeve protruding from the top of the rotating sleeve, the lifting sleeve being able to move up and down relative to the rotating sleeve, the first end of the rotating arm fitted onto the top of the lifting sleeve, and the rotating arm being rotatably connected to the lifting sleeve.

[0018] In one embodiment, the rotating sleeve is provided with a locking member movably connected to the rotating sleeve, and a locking hole is provided on the lifting sleeve along the height direction of the lifting sleeve. The locking member can move relative to the rotating sleeve in a direction closer to or farther from the lifting sleeve, and the locking member can be inserted into the locking hole.

[0019] The advantages or beneficial effects of the above technical solutions include at least the following:

[0020] This embodiment of the conveniently foldable in-vehicle table includes a fixed base, a rotating sleeve, a rotating arm, and a table. When in use, the fixed base can be placed on the cup holder of the car's center console for fixation. Since the rotating sleeve can rotate relative to the supporting column, it can be in a vertical position when the table is in use. When the table is not in use, rotating the rotating sleeve can move it from a vertical to a horizontal position, allowing the table to be rotated to the side of the center console. Furthermore, since the rotating arm can rotate relative to the rotating sleeve, the position of the table can be adjusted by rotating the arm, allowing the table to be stored in the gap between the car's center console and the car seat. This embodiment of the in-vehicle table allows for storage when not in use, preventing the table from occupying excessive space. Attached Figure Description

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0022] Figure 1 A structural diagram of a small in-vehicle table for easy storage;

[0023] Figure 2 A diagram showing the folded-up car tray table for easy storage;

[0024] Figure 3 A cross-sectional view of a small in-vehicle table designed for easy storage;

[0025] Figure 4 A schematic diagram of the combination of the fixed base, damping sleeve and rotary locking assembly;

[0026] Figure 5 This is an exploded view of the base plate and the rotary locking assembly;

[0027] Figure 6 This is a schematic diagram of the rotating sleeve.

[0028] Figure 7 An exploded view of the lifting sleeve and the rotating sleeve;

[0029] Figure 8 This is a schematic diagram of the combination of the rotating arm and the table.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Fixed base; 2. Rotating sleeve; 3. Rotating arm; 4. Tabletop; 5. Support column; 31. First end; 32. Second end; 6. Rotary locking mechanism; 7. Fixed sleeve; 8. Rotary connecting sleeve; 61. Unlock button; 62. Positioning assembly; 9. Base plate; 91. Positioning hole; 611. Positioning plate; 911. Positioning protrusion; 621. Positioning bead; 622. Positioning post; 10. Damping sleeve; 101. Limiting protrusion; 71 102. Limiting groove; 81. Positioning strip; 82. Positioning groove; 83. Insertion hole; 14. Rotation damper; 15. Lifting sleeve; 16. Locking element; 17. Locking hole; 18. Lifting limiting groove; 29. ​​Limiting rib; 100. First folding plate; 101. Second folding plate; 12. Hinge; 13. Adjusting groove; 14. Fixing column; 15. Threaded hole; 16. Bolt; 17. Knob; 18. Damping mounting sleeve; 29. ​​Mounting column. Detailed Implementation

[0032] The invention described in this application will be explained in detail below with reference to specific embodiments.

[0033] Currently, in-car tray tables are usually fixed to the cup holders inside the vehicle when in use. When not in use, in order not to affect the use of interior space, the tray table usually needs to be removed from the cup holders, which leads to the need to frequently install or remove the tray table.

[0034] To address the aforementioned issues, this application discloses a vehicle-mounted small table that is easy to store. When not in use, the small table is easy to store, thus avoiding it taking up too much space.

[0035] like Figure 1 , Figure 2 As shown, the easily foldable vehicle-mounted table includes a fixed base 1, a rotating sleeve 2, a rotating arm 3, and a table 4. A support column 5 is fixed to the fixed base 1. The bottom of the rotating sleeve 2 is rotatably connected to the support column 5, allowing the rotating sleeve 2 to rotate relative to the support column 5. The rotating arm 3 has a first end 31 and a second end 32 arranged opposite to each other. The first end 31 is rotatably connected to the rotating sleeve 2, allowing the rotating arm 3 to rotate relative to the rotating sleeve 2. The table 4 is movably connected to the second end 32 of the rotating arm 3.

[0036] In this embodiment, the in-vehicle tray table can be fixed by placing the fixed base 1 on the cup holder of the car's center console. Since the rotating sleeve 2 can rotate relative to the supporting column 5, the rotating sleeve 2 can be in a vertical position when the tray table 4 is in use. When the tray table 4 is not in use, the rotating sleeve 2 can be rotated from a vertical to a horizontal position, allowing the tray table 4 to be rotated to the side of the center console. Furthermore, since the rotating arm 3 can rotate relative to the rotating sleeve 2, the position of the tray table 4 can be adjusted by rotating the rotating arm 3, allowing the tray table 4 to be stored in the gap between the car's center console and the car seat. In this embodiment, the in-vehicle tray table 4 can be stored away when not in use, preventing the tray table 4 from occupying excessive space.

[0037] The supporting column 5 and the fixed base 1 can be fixed together with screws, and the fixed base 1 and the supporting column 5 can also be an integral structure. In other embodiments, the supporting column 5 can be configured to move up and down relative to the fixed base 1. The fixed base 1 can be directly placed in the cup holder inside the vehicle for fixation, for example, the fixed base 1 can be placed in the cup holder in the center console, or in the cup holder in the center armrest of the rear seat.

[0038] In one embodiment, such as Figure 3 As shown, the vehicle-mounted small table also includes a rotating locking mechanism 6. The supporting column 5 has a fixed sleeve 7, and the bottom of the rotating sleeve 2 has a rotating connecting sleeve 8, which is fitted onto the fixed sleeve 7. The rotating locking mechanism 6 is connected to both the fixed sleeve 7 and the rotating connecting sleeve 8, and the rotating connecting sleeve 8 is locked to the fixed sleeve 7 via the rotating locking mechanism 6. The rotating connecting sleeve 8 and the rotating sleeve 2 can be a single unit, and the fixed sleeve 7 and the supporting column 5 can also be a single unit.

[0039] To achieve locking between the rotary connecting sleeve 8 and the fixed sleeve 7, the rotary locking mechanism 6 includes an unlocking button 61 and a positioning component 62. For example... Figure 4 , Figure 5 As shown, a base plate 9 is installed at the bottom of the rotating sleeve 2. A positioning hole 91 is provided on the base plate 9. The unlocking button 61 is movably connected to the base plate 9 through the positioning hole 91. The unlocking button 61 can move relative to the base plate 9 towards or away from the fixed sleeve 7. Specifically, the base plate 9 and the rotating sleeve 2 can be fixed by screws; the base plate 9 and the rotating sleeve 2 can also be fixed by snap-fit.

[0040] To achieve a movable connection between the unlock button 61 and the base plate 9, the unlock button 61 has a positioning plate 611, and the inner wall of the positioning hole 91 has a positioning protrusion 911 protruding towards the center of the positioning hole 91. The unlock button 61 is movably connected to the base plate 9 through the positioning plate 611 and the positioning protrusion 911. After the unlock button 61 is inserted into the base plate 9, the positioning protrusion 911 and the positioning plate 611 position the unlock button 61, preventing the unlock button 61 from coming out of the positioning hole 91.

[0041] The positioning component 62 is movably connected to the fixed sleeve 7. The positioning component 62 has a positioning bead 621, which can pass through the rotating connecting sleeve 8 and move towards or away from the positioning hole 91. When the positioning bead 621 moves towards the positioning hole 91, the rotating connecting sleeve 8 and the fixed sleeve 7 are locked. When it is necessary to rotate the rotating sleeve 2, the unlocking button 61 is pressed. The unlocking button 61 pushes the positioning bead 621 out of the rotating connecting sleeve 8, thereby unlocking the sleeve. Then, the rotating sleeve 2 can be rotated. Preferably, an insertion hole 82 can be provided on the rotating connecting sleeve 8, and the positioning bead 621 can be inserted into the insertion hole 82 to achieve locking.

[0042] In one embodiment, to enable the movement of the positioning bead 621, the positioning assembly 62 further includes a positioning post 622, which can be fixed to the fixing sleeve 7 by means of screws or other methods. The positioning bead 621 is located at one end of the positioning post 622, and a spring can be installed inside the positioning post 622. One end of the spring abuts against the positioning post 622, and the other end of the spring abuts against the positioning bead 621.

[0043] The number of positioning components 62 can be one, two, or more. The positioning components 62 can be arranged around the circumference of the fixed sleeve 7. The number and position of the positioning components 62 can be set according to the usage requirements. When there are two positioning components 62, when one positioning component 62 is locked, the rotating sleeve 2 is in a vertical state, and when the other positioning component 62 is locked, the rotating sleeve 2 is in a horizontal state.

[0044] In the initial state, the spring is extended, and the positioning bead 621 is inserted into the insertion hole 82 on the rotating connecting sleeve 8, locking the rotating connecting sleeve 8 and the fixed sleeve 7. When it is necessary to rotate the rotating sleeve 2, press the unlock button 61 to push the positioning bead 621 out of the insertion hole 82 to unlock it, and then rotate the rotating sleeve 2. At this time, the spring is compressed. When the rotating sleeve 2 rotates to the predetermined state, it can be locked again by the positioning bead 621 of another positioning component 62.

[0045] In one embodiment, such as Figure 4As shown, in order to limit the rotation of the rotating sleeve 2, the vehicle-mounted small table also includes a damping sleeve 10, which is fixed inside the rotating connecting sleeve 8. The end of the damping sleeve 10 has a limiting protrusion 101, and a limiting groove 71 is formed at the end of the fixed sleeve 7 along the circumferential direction of the fixed sleeve 7. The limiting protrusion 101 is located in the limiting groove 71 and moves within the limiting groove 71.

[0046] When the rotating sleeve 2 rotates, the limiting protrusion 101 moves along the limiting groove 71, thereby limiting the rotation of the damping sleeve 10 and the rotating sleeve 2 and preventing them from shifting their position during rotation.

[0047] like Figure 3 , Figure 4 As shown, in order to fix the damping sleeve 10 to the rotary connecting sleeve 8, a positioning strip 102 is provided on the outer circumferential surface of the damping sleeve 10, and a positioning groove 81 is provided on the inner wall of the rotary connecting sleeve 8, with the positioning strip 102 located within the positioning groove 81. The damping sleeve 10 is fixed to the rotary connecting sleeve 8 through the positioning strip 102 and the positioning groove 81, so that the rotary sleeve 2 can synchronously drive the damping sleeve 10 to rotate during rotation.

[0048] In one embodiment, a rotary damper 11 may be installed inside the damping sleeve 10. This rotary damper 11 can be a commercially available rotary damper, which is prior art. The rotary damper 11 is installed inside the damping sleeve 10 and connected to the fixed sleeve 7. The rotary damper 11 can be connected to the damping sleeve 10 via a spline groove, or it can be connected to the fixed sleeve 7 via a pin or snap-fit. The installation of the rotary damper 11 to the damping sleeve 10 and its connection to the fixed sleeve 7 can also be prior art; any method that achieves the connection is acceptable.

[0049] The rotary damper 11 can slow down the rotational speed of the rotary motion, thereby achieving better control over the rotation of the rotary sleeve 2.

[0050] like Figure 3 As shown, the easy-to-store vehicle table also includes a lifting sleeve 12, a rotating sleeve 2 fitted on the lifting sleeve 12, and the top of the lifting sleeve 12 protruding from the top of the rotating sleeve 2. The lifting sleeve 12 can move up and down relative to the rotating sleeve 2.

[0051] like Figure 7 As shown, in order to realize the movement of the lifting sleeve 12, the rotating sleeve 2 is provided with a locking member 13 that is movably connected to the rotating sleeve 2, and a locking hole 121 is provided on the lifting sleeve 12 along the height direction of the lifting sleeve 12. The locking member 13 can move relative to the rotating sleeve 2 in a direction closer to or farther from the lifting sleeve 12, and the locking member 13 can be inserted into the locking hole 121. The number of locking holes 121 can be one, two or more.

[0052] Furthermore, the locking element 13 can be a screw, which can be threadedly connected to the rotating sleeve 2. When it is necessary to fix the rotating sleeve 2 and the lifting sleeve 12, one end of the screw can be inserted into the locking hole 121 to lock it. When it is necessary to move the lifting sleeve 12 up or down, the screw can be moved out of the locking hole 121, and then the lifting sleeve 12 can be moved. When the lifting sleeve 12 moves to the predetermined height, the screw can be inserted into the corresponding locking hole 121 to lock it again. In addition, in the unlocked state, the lifting sleeve 12 can be directly removed from the rotating sleeve 2.

[0053] like Figure 6 , Figure 7 As shown, in order to limit the movement of the lifting sleeve 12, the outer circumferential surface of the lifting sleeve 12 has a lifting limiting groove 122, and the inner wall of the rotating sleeve 2 has a limiting rib 21, which is located within the lifting limiting groove 122. When the lifting sleeve 12 moves, it is limited by the lifting limiting groove 122 and the limiting rib 21.

[0054] The first end 31 of the rotating arm 3 is sleeved on the top of the lifting sleeve 12, and the rotating arm 3 is rotatably connected to the lifting sleeve 12.

[0055] In one embodiment, such as Figure 3 , Figure 6 As shown, an existing rotary damper 11 can also be installed inside the lifting sleeve 12. Specifically, the lifting sleeve 12 has a damping mounting sleeve 124 in its middle section, and the rotating sleeve 2 has a mounting column 22 in its middle section. The damping mounting sleeve 124 is fitted onto the mounting column 22. The rotary damper 11 is connected to the damping mounting sleeve 124, and the rotary damper 11 is also connected to the first end 31 of the rotating arm 3. The rotary damper 11 can be connected to the damping mounting sleeve and the rotating arm 3 by a snap-fit ​​or pin, and the connection method can be existing technology.

[0056] In one embodiment, such as Figure 2 As shown, to achieve the storage of the tabletop 4, the tabletop 4 includes a first folding plate 41 and a second folding plate 42. The first folding plate 41 and the second folding plate 42 are hinged together, and the first folding plate 41 can be folded relative to the second folding plate 42. The first folding plate 41 and the second folding plate 42 are hinged together by a hinge 43, and the hinge 43 is fixed to the first folding plate 41 and the second folding plate 42 by screws. In other embodiments, the first folding plate 41 and the second folding plate 42 can also be hinged together by a rotating shaft.

[0057] like Figure 8As shown, the rotating arm 3 is movably connected to the second folding plate 42. Specifically, the second end 32 of the rotating arm 3 has an adjustment groove 33, which extends along the length of the rotating arm 3. A fixing post 14 can be fixed to the second folding plate 42 by screws. A threaded hole 141 is provided in the middle of the fixing post 14, and the second folding plate 42 is threadedly connected to the threaded hole 141 by bolts 15. The bolts 15 are located in the adjustment groove 33 and can move within the adjustment groove 33.

[0058] When bolt 15 is tightened, the second folding plate 42 and the rotating arm 3 can be fixed. When it is necessary to adjust the relative position of the rotating arm 3 and the table 4, bolt 15 can be loosened, and then the table 4 can be moved to the predetermined position. Then, bolt 15 can be tightened to fix it.

[0059] In this embodiment, the tabletop 4, rotating arm 3, and lifting sleeve 12 can be assembled into a single unit, thereby facilitating their disassembly and installation. For example... Figure 7 As shown, the lifting sleeve 12 has a knob 123, and the rotating arm 3 is located above the knob 123.

[0060] In use, the in-vehicle table of this embodiment is fixed to the cup holder in the vehicle by fixing the base 1, and then unfolding the first folding plate 41 and the second folding plate 42. When the in-vehicle table is not in use, the unlocking button 61 can be pressed to lock the rotating connecting sleeve 8 and the fixing sleeve 7, rotating the rotating sleeve 2 from a vertical position to a horizontal or near-horizontal position. Then, the rotating arm 3 is rotated to adjust the position of the table 4, and the first folding plate 41 is folded towards the second folding plate 42, thereby folding the table 4 and storing it.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions created in this application, and are not intended to limit the scope of protection of this application. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions created in this application without departing from the substance and scope of the technical solutions created in this application.

Claims

1. A portable car table that is easy to store, characterized in that: include: A fixed base, on which a supporting column is fixed; A rotating sleeve, the bottom of which is rotatably connected to the support column, and the rotating sleeve is capable of rotating relative to the support column; A rotating arm having a first end and a second end disposed opposite to each other, the first end being rotatably connected to the rotating sleeve, and the rotating arm being rotatable relative to the rotating sleeve; The tabletop is movably connected to the second end of the rotating arm.

2. The easily foldable vehicle-mounted small table according to claim 1, characterized in that, It also includes a rotation locking mechanism. The support column has a fixed sleeve, and the bottom of the rotating sleeve has a rotating connecting sleeve. The rotating connecting sleeve is sleeved on the fixed sleeve. The rotation locking mechanism is connected to the fixed sleeve and the rotating connecting sleeve. The rotating connecting sleeve is locked to the fixed sleeve through the rotation locking mechanism.

3. The easily foldable vehicle-mounted small table according to claim 2, characterized in that, The rotary locking mechanism includes an unlocking button and a positioning component. A base plate is installed at the bottom of the rotary sleeve, and a positioning hole is provided on the base plate. The unlocking button is movably connected to the base plate through the positioning hole, and the unlocking button can move relative to the base plate towards or away from the fixed sleeve. The positioning component is movably connected to the fixed sleeve, and the positioning component has a positioning bead. The positioning bead can pass through the rotary connecting sleeve and move towards or away from the positioning hole.

4. The easily foldable vehicle-mounted small table according to claim 3, characterized in that, The unlock button has a positioning plate, and the inner wall of the positioning hole has a positioning protrusion protruding towards the center of the positioning hole. The unlock button is movably connected to the base plate through the positioning plate and the positioning protrusion.

5. The easily foldable vehicle-mounted small table according to claim 2, characterized in that, The easily foldable vehicle-mounted table also includes a damping sleeve, which is fixed inside the rotating connecting sleeve. The end of the damping sleeve has a limiting protrusion, and a limiting groove is formed at the end of the fixed sleeve along the circumferential direction of the fixed sleeve. The limiting protrusion is located in the limiting groove and can move within the limiting groove.

6. The easily foldable vehicle-mounted small table according to claim 5, characterized in that, The damping sleeve has a positioning strip on its outer circumferential surface, and the rotating connecting sleeve has a positioning groove on its inner wall, with the positioning strip located in the positioning groove.

7. The easily foldable vehicle-mounted small table according to any one of claims 1 to 6, characterized in that, The tabletop includes a first folding plate and a second folding plate, the first folding plate and the second folding plate are hinged together, the first folding plate can be folded relative to the second folding plate, and the rotating arm is movably connected to the second folding plate.

8. The easily foldable vehicle-mounted table according to any one of claims 1 to 6, characterized in that, An adjustment groove is provided at the second end of the rotating arm, and the adjustment groove extends along the length of the rotating arm. A fixing column is fixed on the table, and a threaded hole is provided in the middle of the fixing column. The table is threadedly connected to the threaded hole by a bolt, and the bolt is located in the adjustment groove and can move within the adjustment groove.

9. The easily foldable vehicle-mounted table according to any one of claims 1 to 6, characterized in that, The easily foldable vehicle-mounted table also includes a lifting sleeve, a rotating sleeve fitted onto the lifting sleeve, the top of the lifting sleeve protruding from the top of the rotating sleeve, the lifting sleeve being able to move up and down relative to the rotating sleeve, the first end of the rotating arm fitted onto the top of the lifting sleeve, and the rotating arm being rotatably connected to the lifting sleeve.

10. The easily foldable vehicle-mounted small table according to claim 9, characterized in that, The rotating sleeve is provided with a locking member that is movably connected to the rotating sleeve. A locking hole is provided on the lifting sleeve along the height direction of the lifting sleeve. The locking member can move relative to the rotating sleeve in a direction closer to or farther from the lifting sleeve, and the locking member can be inserted into the locking hole.

Images