Multifunctional flexible workstation

Abstract

The invention discloses a multifunctional flexible workstation, and relates to the technical field of manufacturing, a disc groove is formed in the side end of a replacement groove, the upper end of a fan groove disc is connected with the lower end of a fan groove column, a folding groove is formed in the rear side of a workbench, and the front end of a multifunctional base plate is rotationally connected with a multifunctional table plate through an adjusting shaft; the multifunctional working table has the advantages that the multifunctional working table can adapt to different working scenes, the flexibility of the working table is improved, a working panel can be fixed through a fan groove disc and a fan groove column, so that the working panel is more stable during use, and the working table is more convenient to use. The multifunctional base plate and the adjusting shaft can enable the multifunctional table plate to have an angle adjusting function, so that the multifunctional table plate can have more working angles, a user feels more comfortable during working, and the extension plate and the supporting rod can provide angle reference and position support for angle adjustment of the multifunctional table plate.

Description

Technical Field

[0001] This invention relates to the field of manufacturing technology, specifically to a flexible workstation with multiple functions. Background Technology

[0002] A flexible workstation is a work system that is flexible and adaptable. It is usually composed of a variety of adjustable and reconfigurable components and can be quickly reorganized and configured according to different work tasks, process requirements or production processes. Its core feature is that it can adapt to diverse work scenarios through modular design, adjustable mechanisms and intelligent control. It is commonly found in manufacturing, scientific research and experimental fields. For example, by adjusting the height of the workbench, replacing different functional modules or changing the connection method of components, it can meet the needs of product iteration or process change.

[0003] Common workstations typically employ a fixed work panel design with a simple work slot structure, making it impossible to switch functions according to different work requirements such as drilling, assembly, and engraving. Furthermore, most workbenches are horizontally fixed and cannot adapt to inclined work requirements. Additionally, tools are prone to falling due to the tilt of the multi-functional tabletop. Therefore, we propose a multi-functional flexible workstation. Summary of the Invention

[0004] The purpose of this invention is to provide a flexible workstation with multiple functions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional flexible workstation, comprising a workstation body, the workstation body including a workbench and a flexible working mechanism connected to the workbench, the flexible working mechanism including a fan slot plate, a fan slot column, a multifunctional tabletop, and a support rod, the upper end of the workbench having a replacement slot, and the bottom wall of the replacement slot having a work panel, the side end of the replacement slot having a plate groove, and the inner wall of the plate groove being slidably connected to the outer wall of the fan slot plate, the upper end of the fan slot plate being connected to the lower end of the fan slot column, and the upper end of the fan slot column extending to the outside of the workbench, the working mechanism... The worktable has a stacking groove on its rear side, and a multi-functional base plate and a moving mechanism are slidably connected inside the stacking groove. The front end of the multi-functional base plate is rotatably connected to the multi-functional tabletop via an adjustment shaft. A corner fixing mechanism is connected to the upper end of the multi-functional base plate. A mounting hole is provided on the left side of the multi-functional base plate, and a polygonal hole is provided on the inner wall of the mounting hole. A guide hole is provided on the inner wall of the polygonal hole. An adjustment shaft, a polygonal column, and a guide column are slidably connected to the inner walls of the mounting hole, the polygonal hole, and the guide hole, respectively. A groove is provided on the upper end of the multi-functional tabletop. The adjustment shaft is connected to the support rod via an extension plate.

[0006] As a further embodiment of the present invention: the lower ends of the multifunctional base plate and the multifunctional tabletop are both connected to a folding mechanism, the left end of the workbench is equipped with a limiting mechanism, the side of the guide post away from the polygonal column is connected to a spring, and the side of the spring away from the guide post is connected to the inner wall of the guide hole.

[0007] As a further embodiment of the present invention: a through hole is provided on the rear left side of the extension plate, the inner wall of the through hole is connected to the outer wall of the angle adjustment shaft, and the right side of the extension plate is connected to the support rod.

[0008] As a further embodiment of the present invention: the folding mechanism includes a support leg, and the lower ends of the multifunctional base plate and the multifunctional tabletop are provided with folding grooves. The side walls of the two folding grooves are rotatably connected to rotating rods, and the outer walls of the two rotating rods are rotatably connected to the support leg.

[0009] As a further embodiment of the present invention: the corner fixing mechanism includes a trapezoidal moving frame, a trapezoidal translation groove is provided on the upper front side of the multifunctional base plate, the inner wall of the trapezoidal translation groove is slidably connected to the outer wall of the trapezoidal moving frame, and a retaining groove is provided on the upper rear side of the multifunctional table, and the retaining groove cooperates with the trapezoidal moving frame.

[0010] As a further aspect of the present invention: the corner fixing mechanism further includes a horizontal working plate and a connecting plate, the front end of the multifunctional base plate is connected to the rear end of the connecting plate, and the front end of the connecting plate is connected to the rear end of the horizontal working plate.

[0011] As a further aspect of the present invention: the moving mechanism includes a moving column, the bottom wall of the stacking groove is provided with a moving slide groove, the upper right side of the multifunctional base plate is provided with a through groove, the inner wall of the through groove is connected to the outer wall of the moving column, and the lower end of the moving column extends into the interior of the moving slide groove.

[0012] As a further aspect of the present invention: the limiting mechanism includes a movable block and a return spring, a telescopic groove is provided on the left side of the worktable, the inner wall of the telescopic groove is slidably connected to the outer wall of the movable block, and the right end of the movable block is connected to the left end of the return spring, and the right end of the return spring is connected to the right wall of the telescopic groove.

[0013] As a further aspect of the present invention: the limiting mechanism further includes a hook frame, the front end of the workbench is provided with a movable groove, the inner wall of the movable groove is slidably connected to the outer wall of the hook frame, the rear end of the hook frame is connected to the front end of the movable block, and the left rear end of the multifunctional base plate is provided with an L-shaped groove, the L-shaped groove and the hook frame cooperate with each other.

[0014] Compared with the prior art, the beneficial effects of the present invention by adopting the above technical solution are as follows:

[0015] 1. This invention allows for the replacement of work panels by changing slots. Different work panels have different work slots, enabling the worktable to adapt to different work scenarios and increasing its flexibility. The fan-slot plate and fan-slot column can fix the work panel, making it more stable during use. The multi-functional base plate and adjustment shaft enable the multi-functional tabletop to have an angle adjustment function, allowing the multi-functional tabletop to have more working angles and making the user more comfortable during work. The extension plate and support rod can provide angle reference and position support for the angle adjustment of the multi-functional tabletop, making the multi-functional tabletop more stable when working at the set angle.

[0016] 2. The present invention can store the support legs through the folding groove, so that the support legs can be stored together with the multi-functional base plate and the multi-functional tabletop inside the folding groove, making it easier to move. The trapezoidal moving frame can cooperate with the fixing groove to lock the angle of the multi-functional tabletop. At the same time, the connecting plate and the horizontal working plate provide a horizontal working platform for the multi-functional tabletop, so that the multi-functional tabletop can still provide a horizontal operating area when tilted, and prevent tools from falling due to the angle.

[0017] 3. This invention provides support for the rotation and movement of the multifunctional base plate and multifunctional tabletop through the movable column and movable slide, enabling the multifunctional base plate and multifunctional tabletop to move to different positions, increasing the flexibility of the multifunctional tabletop during use. The movable block can control the position of the hook frame, which can cooperate with the L-shaped groove to lock and fix the position of the multifunctional base plate, further improving the stability of the multifunctional base plate and multifunctional tabletop during use and preventing displacement of the multifunctional tabletop during use.

[0018] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0019] Figure 1 This is an overall three-dimensional schematic diagram of an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0021] Figure 3 This is a three-dimensional schematic diagram of the workbench in an embodiment of the present invention;

[0022] Figure 4 This is a three-dimensional schematic diagram of the multifunctional base plate in an embodiment of the present invention;

[0023] Figure 5This is a three-dimensional schematic diagram of the multifunctional tabletop in an embodiment of the present invention;

[0024] Figure 6 This is a three-dimensional schematic diagram of the horizontal working plate in an embodiment of the present invention;

[0025] Figure 7 This is a three-dimensional schematic diagram of the support rod in an embodiment of the present invention;

[0026] Figure 8 This is a three-dimensional schematic diagram of the movable column in an embodiment of the present invention;

[0027] Figure 9 This is a three-dimensional schematic diagram of the hook frame in an embodiment of the present invention.

[0028] In the diagram: 1. Main body of the workstation; 11. Workbench; 2. Flexible working mechanism; 201. Changing slot; 202. Work panel; 203. Slotted plate; 204. Slotted column; 205. Multifunctional base plate; 206. Multifunctional tabletop; 207. Adjustment shaft; 208. Angle adjustment shaft; 209. Polygonal column; 210. Guide column; 211. Extension plate; 212. Support rod; 3. Folding mechanism; 31. Folding slot; 32. Support foot; 4. Angle fixing mechanism; 41. Trapezoidal translation slot; 42. Trapezoidal moving frame; 43. Fixed slot; 44. Horizontal work plate; 45. Connecting plate; 5. Moving mechanism; 51. Moving slide; 52. Moving column; 6. Limiting mechanism; 61. Telescopic slot; 62. Movable block; 63. Moving slot; 64. Hook; 65. Return spring. Detailed Implementation

[0029] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0030] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Example 1

[0032] This invention relates to a multifunctional flexible workstation. In the assembly workshop of an electronic equipment manufacturing plant, different models of electronic products require multiple processes such as welding, assembly, and debugging. Traditional workstations have limited functionality and cannot quickly adapt to the production needs of different products. When changing product models, it is necessary to rearrange the workbench and replace the tool modules, which is not only time-consuming and labor-intensive, but also causes production line shutdowns and affects production efficiency. When producing a new tablet computer, circuit board welding and screen assembly need to be performed simultaneously on the workbench. However, traditional workstations can only perform one of these operations at a time and cannot meet the needs of multiple processes being performed simultaneously.

[0033] Therefore, in order to effectively solve the above problems, this application proposes a flexible workstation with multiple functions, as shown in the attached drawings of the specification. Figure 1-9 As shown, the workstation includes a main body 1, which includes a workbench 11 and a flexible working mechanism 2 connected to the workbench 11. The flexible working mechanism 2 includes a fan-shaped groove plate 203, a fan-shaped groove column 204, a multi-functional tabletop 206, and a support rod 212. A replacement slot 201 is provided at the upper end of the workbench 11, and a work panel 202 is placed on the bottom wall of the replacement slot 201. A groove is provided at the side end of the replacement slot 201, and the inner wall of the groove is slidably connected to the outer wall of the fan-shaped groove plate 203. The upper end of the fan-shaped groove plate 203 is connected to the lower end of the fan-shaped groove column 204, and the upper end of the fan-shaped groove column 204 extends to the outside of the workbench 11. A stacking slot is provided on the rear side of the workbench 11. The multi-functional base plate 205 and the moving mechanism 5 are slidably connected inside the stacking groove. The front end of the multi-functional base plate 205 is rotatably connected to the multi-functional table 206 through the adjusting shaft 207. The upper end of the multi-functional base plate 205 is connected to the corner fixing mechanism 4. The left side of the multi-functional base plate 205 is provided with an installation hole, and the inner wall of the installation hole is provided with a polygonal hole. The inner wall of the polygonal hole is provided with a guide hole. The inner walls of the installation hole, the polygonal hole and the guide hole are slidably connected with the adjusting shaft 208, the polygonal column 209 and the guide column 210 respectively. The upper end of the multi-functional table 206 is provided with a groove. The adjusting shaft 208 is connected to the support rod 212 through the extension plate 211.

[0034] The lower ends of the multi-functional base plate 205 and the multi-functional tabletop 206 are both connected to the folding mechanism 3. The left end of the workbench 11 is equipped with the limiting mechanism 6. The side of the guide post 210 away from the polygonal post 209 is connected to the spring, and the side of the spring away from the guide post 210 is connected to the inner wall of the guide hole.

[0035] A through hole is provided on the rear left side of the extension plate 211. The inner wall of the through hole is slidably connected to the outer wall of the angle adjustment shaft 208. The right side of the extension plate 211 is connected to the support rod 212.

[0036] The number of sides of the polygonal column 209 is not fixed. The more sides the polygonal column 209 has, the higher the accuracy of the angle adjustment of the multi-functional tabletop 206. At the same time, when the angle adjustment shaft 208 rotates, it will drive the extension plate 211 to rotate synchronously.

[0037] Furthermore, the upper end of the multi-functional tabletop 206 is provided with a U-shaped groove, and different work tools can be placed inside the U-shaped groove, so that different tools can be placed on different multi-functional tabletops 206, increasing the tool storage effect of the workbench 11, and the depth of the U-shaped groove is greater than the thickness of the horizontal work board 44.

[0038] Specifically, the replacement slot 201 is used to replace the work panel 202, and different work panels 202 have different work slots. The different work slots allow the worktable 11 to adapt to different work scenarios. The fan slot plate 203 and fan slot column 204 are used to fix the work panel 202, making it easier to replace the work panel 202 and more stable during use. The multi-functional base plate 205 and the adjustment shaft 207 are used to enable the multi-functional tabletop 206 to have an angle adjustment function. The angle adjustment shaft 208 is used to control the position of the polygon column 209 and the guide column 210. The polygon column 209 is used to cooperate with the polygon slot to control the angle of the extension plate 211 and the support rod 212. The extension plate 211 and the support rod 212 are used to provide angle reference and position support for the angle adjustment of the multi-functional tabletop 206, making the multi-functional tabletop 206 more stable when working at the set angle.

[0039] Example 2

[0040] The folding mechanism 3 includes a support foot 32, and the lower ends of the multi-functional base plate 205 and the multi-functional tabletop 206 are all provided with folding grooves 31. The side walls of the two folding grooves 31 are rotatably connected to rotating rods, and the outer walls of the two rotating rods are rotatably connected to the support foot 32.

[0041] The corner fixing mechanism 4 includes a trapezoidal moving frame 42. A trapezoidal translation groove 41 is provided on the upper front side of the multi-functional base plate 205. The inner wall of the trapezoidal translation groove 41 is slidably connected to the outer wall of the trapezoidal moving frame 42. A retaining groove 43 is provided on the upper rear side of the multi-functional table 206, and the retaining groove 43 cooperates with the trapezoidal moving frame 42.

[0042] The corner fixing mechanism 4 also includes a horizontal working plate 44 and a connecting plate 45. The front end of the multi-functional base plate 205 is connected to the rear end of the connecting plate 45, and the front end of the connecting plate 45 is connected to the rear end of the horizontal working plate 44.

[0043] Meanwhile, when the multi-functional table 206 is rotated to a position that is horizontal with the multi-functional base plate 205, the horizontal work plate 44 will seal the U-shaped groove, thereby limiting the position of the tools placed in the U-shaped groove and preventing the tools from moving out.

[0044] Specifically, the folding groove 31 is used to store the support foot 32, so that the support foot 32 can be stored together with the multi-functional base plate 205 and the multi-functional table 206 inside the folding groove. The trapezoidal moving frame 42 is used to cooperate with the fixing groove 43 to fix the angle of the multi-functional table 206. At the same time, the connecting plate 45 and the horizontal working plate 44 provide a horizontal worktable 11 for the multi-functional table 206. The trapezoidal translation groove 41 is used to limit the movement range of the trapezoidal moving frame 42.

[0045] Example 3

[0046] The moving mechanism 5 includes a moving column 52, a moving slide 51 is provided on the bottom wall of the stacking groove, and a through groove is provided on the upper right side of the multi-functional base plate 205. The inner wall of the through groove is connected to the outer wall of the moving column 52, and the lower end of the moving column 52 extends into the interior of the moving slide 51.

[0047] The limiting mechanism 6 includes a movable block 62 and a return spring 65. A telescopic groove 61 is provided on the left side of the worktable 11. The inner wall of the telescopic groove 61 is slidably connected to the outer wall of the movable block 62. The right end of the movable block 62 is connected to the left end of the return spring 65, and the right end of the return spring 65 is connected to the right wall of the telescopic groove 61.

[0048] The limiting mechanism 6 also includes a hook 64. The front end of the workbench 11 is provided with a moving groove 63. The inner wall of the moving groove 63 is slidably connected to the outer wall of the hook 64. The rear end of the hook 64 is connected to the front end of the movable block 62. The left side of the rear end of the multi-functional base plate 205 is provided with an L-shaped groove, which cooperates with the hook 64.

[0049] Specifically, the movable column 52 and the movable slide 51 are used to provide support for the rotation and movement of the multi-functional base plate 205 and the multi-functional table 206. The movable block 62 is used to control the position of the hook 64. The hook 64 is used to cooperate with the L-shaped groove to lock and fix the position of the multi-functional base plate 205. The return spring 65 is used to push the movable block 62 and the hook 64 to return to their original positions.

[0050] Working principle:

[0051] First, place the work panel 202 to be used into the replacement slot 201. Then, use the slot column 204 to rotate the slot plate 203. The rotation of the slot plate 203 causes it to contact the upper end of the work panel 202, fixing its position. Next, pull the multi-functional base plate 205 and the multi-functional tabletop 206 out from the stacking slot. At this time, the multi-functional base plate 205 and the multi-functional tabletop 206 will rotate along the moving column 52. After completely removing it from the folding slot, move the movable column 52 along the movable slide 51, and rotate the multi-functional base plate 205 and multi-functional tabletop 206 again, so that the rear wall of the multi-functional base plate 205 contacts the front wall of the workbench 11. Press the multi-functional base plate 205, which will allow the hook 64 to engage with the L-shaped slot, thereby further fixing the position of the multi-functional base plate 205 and multi-functional tabletop 206. Then, fold the support leg 32 out from the folding slot 31, and use the support leg 32 to secure the multi-functional base plate 205 and multi-functional tabletop 206. The functional tabletop 206 provides further support, then pushes the adjustment shaft 208 to move. The movement of the adjustment shaft 208 simultaneously pushes the polygonal column 209 and guide column 210 to move, causing the polygonal column 209 to move out of the polygonal groove. Then, the adjustment shaft 208, polygonal column 209, and guide column 210 are rotated, causing the polygonal column 209 to rotate to another edge that mates with the polygonal groove, until the outer extension plate 211 and support rod 212 are adjusted to the appropriate angle position. Then, the pressure on the adjustment shaft 208 is released, and the spring will push the polygonal column 209 back to its original position. Entering the interior of the polygonal groove, the angles of the polygonal column 209, the extension plate 211, and the support rod 212 are fixed. Then, the trapezoidal moving frame 42 is pushed to move along the trapezoidal translation groove 41, so that the trapezoidal moving frame 42 moves out of the interior of the fixed groove 43, releasing the constraint on the multi-functional table 206. At this time, the multi-functional table 206 will rotate along the adjustment shaft 207, so that the lower end of the multi-functional table 206 contacts the upper end of the support rod 212, thereby completing the angle adjustment of the multi-functional table 206. Thus, the entire process ends.

[0052] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0053] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0055] For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A multifunctional flexible workstation, comprising a workstation body (1), wherein the workstation body (1) includes a workbench (11) and a flexible working mechanism (2) connected to the workbench (11), characterized in that: The flexible working mechanism (2) includes a fan slot plate (203), a fan slot column (204), a multi-functional table (206), and a support rod (212). The upper end of the workbench (11) is provided with a replacement slot (201), and a work panel (202) is placed on the bottom wall of the replacement slot (201). The side end of the replacement slot (201) is provided with a plate groove, and the inner wall of the plate groove is slidably connected to the outer wall of the fan slot plate (203). The upper end of the fan slot plate (203) is connected to the lower end of the fan slot column (204), and the upper end of the fan slot column (204) extends to the outside of the workbench (11). The rear side of the workbench (11) is provided with a stacking groove, and a multi-functional base plate (206) is slidably connected inside the stacking groove. 5) and the moving mechanism (5), the front end of the multi-functional base plate (205) is rotatably connected to the multi-functional tabletop (206) through the adjusting shaft (207), the upper end of the multi-functional base plate (205) is connected to the corner fixing mechanism (4), the left side of the multi-functional base plate (205) is provided with an installation hole, and the inner wall of the installation hole is provided with a polygonal hole, the inner wall of the polygonal hole is provided with a guide hole, the inner walls of the installation hole, the polygonal hole and the guide hole are respectively slidably connected with the adjusting shaft (208), the polygonal column (209) and the guide column (210), and the upper end of the multi-functional tabletop (206) is provided with a groove, and the adjusting shaft (208) is connected to the support rod (212) through the extension plate (211).

2. The flexible workstation with multiple functions according to claim 1, characterized in that: The lower ends of the multifunctional base plate (205) and the multifunctional tabletop (206) are both connected to a folding mechanism (3). The left end of the workbench (11) is equipped with a limiting mechanism (6). The side of the guide post (210) away from the polygonal post (209) is connected to a spring, and the side of the spring away from the guide post (210) is connected to the inner wall of the guide hole.

3. A multifunctional flexible workstation according to claim 1, characterized in that: The extension plate (211) has a through hole on the rear left side, the inner wall of the through hole is connected to the outer wall of the angle adjustment shaft (208), and the right side of the extension plate (211) is connected to the support rod (212).

4. A flexible workstation with multiple functions according to claim 2, characterized in that: The folding mechanism (3) includes a support foot (32). The lower ends of the multifunctional base plate (205) and the multifunctional tabletop (206) are provided with folding grooves (31). The side walls of the two folding grooves (31) are rotatably connected to rotating rods. The outer walls of the two rotating rods are rotatably connected to the support foot (32).

5. A flexible workstation with multiple functions according to claim 1, characterized in that: The corner fixing mechanism (4) includes a trapezoidal moving frame (42). A trapezoidal translation groove (41) is provided on the upper front side of the multi-functional base plate (205). The inner wall of the trapezoidal translation groove (41) is slidably connected to the outer wall of the trapezoidal moving frame (42). A retaining groove (43) is provided on the upper rear side of the multi-functional table (206), and the retaining groove (43) cooperates with the trapezoidal moving frame (42).

6. A flexible workstation with multiple functions according to claim 5, characterized in that: The corner fixing mechanism (4) also includes a horizontal working plate (44) and a connecting plate (45). The front end of the multi-functional base plate (205) is connected to the rear end of the connecting plate (45), and the front end of the connecting plate (45) is connected to the rear end of the horizontal working plate (44).

7. A flexible workstation with multiple functions according to claim 1, characterized in that: The moving mechanism (5) includes a moving column (52), the bottom wall of the stacking groove is provided with a moving slide (51), the upper right side of the multifunctional base plate (205) is provided with a through groove, the inner wall of the through groove is connected to the outer wall of the moving column (52), and the lower end of the moving column (52) extends into the interior of the moving slide (51).

8. A flexible workstation with multiple functions according to claim 2, characterized in that: The limiting mechanism (6) includes a movable block (62) and a return spring (65). A telescopic groove (61) is provided on the left side of the worktable (11). The inner wall of the telescopic groove (61) is slidably connected to the outer wall of the movable block (62). The right end of the movable block (62) is connected to the left end of the return spring (65), and the right end of the return spring (65) is connected to the right wall of the telescopic groove (61).

9. A flexible workstation with multiple functions according to claim 8, characterized in that: The limiting mechanism (6) also includes a hook frame (64). The front end of the workbench (11) is provided with a moving groove (63). The inner wall of the moving groove (63) is slidably connected to the outer wall of the hook frame (64). The rear end of the hook frame (64) is connected to the front end of the movable block (62). The left side of the rear end of the multi-functional base plate (205) is provided with an L-shaped groove. The L-shaped groove cooperates with the hook frame (64).

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