Groove type precision casting module hook

Abstract

The invention discloses a groove type precision casting module hook, and relates to the technical field of hooks, the groove type precision casting module hook comprises a module body, a connecting cylinder is mounted on the upper surface of the module body, a handle is fixedly connected to the end, away from the module body, of the connecting cylinder, a hook body is mounted in the handle, and a leaf spring is mounted in the handle; the leaf spring is tightly attached to the hook body, the replacing device is arranged in the handle and used for mounting and dismounting the leaf spring, and the replacing device comprises a propelling screw. According to the groove type precision casting module hook, by arranging the replacing device, after a leaf spring in the groove type precision casting module hook is fatigued in use, the leaf spring in the groove type precision casting module hook can be conveniently replaced, the leaf spring replacing efficiency is improved, and the complexity of maintaining the groove type precision casting module hook is reduced; and meanwhile, the service life of the groove type precision casting module hook is guaranteed as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of hooks, in particular to a groove type precision casting module hook. Background Art

[0002] A grooved module hook refers to a hook formed by combining multiple basic parts, with multiple grooves opened on its surface, so that it can support the hanging of multiple items that need to be hung through a hook module, thereby facilitating the storage of items and the organization of space.

[0003] The above-mentioned and existing related technologies often have the following defects: after the grooved precision casting module hook has been used for a long time, it is often easy to cause fatigue of the leaf spring, thereby causing the performance of the leaf spring to decrease. After the leaf spring reaches the end of its service life, the grooved precision casting module hook in the prior art is often difficult to replace the leaf spring, which is not conducive to the maintenance of the grooved precision casting module hook.

[0004] To this end, we propose a grooved precision casting module hook. Summary of the invention

[0005] The object of the present invention is to provide a groove type precision casting die hook to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a groove-type precision casting mold hook, comprising a mold body, a connecting cylinder is installed on the upper surface of the mold body, a handle is fixedly connected to the end of the connecting cylinder away from the mold body, a hook body is installed inside the handle, a leaf spring is installed inside the handle, and the leaf spring fits tightly with the hook body, and also includes: a replacement device arranged inside the handle for installing and removing the leaf spring, the replacement device comprises an advancement screw, the advancement screw is threadedly inserted into the inner wall of the handle, the advancement screw is rotatably connected to a push block at one end close to the hook body, the upper surface of the push block is an inclined surface, the inner wall of the handle is fixedly connected to a fixing ring, the inner wall of the fixing ring is fixedly connected to a connecting block, and the inner wall of the connecting block slides A slide plate is connected, which fits tightly with the leaf spring, and the vertical cross-section of the slide plate is "L"-shaped; a telescopic device is arranged at the end of the handle away from the module body to adjust the length of the handle, and the telescopic device includes a connecting rod, which is installed at the end of the handle away from the module body, and the surface of the connecting rod is sleeved with a threaded ring, and the connecting rod is threadedly inserted in the inner wall of the threaded ring, and the surface of the threaded ring is fixedly connected with an adjustment cylinder; a limiting device is arranged inside the handle to limit the position of the leaf spring when replacing the leaf spring, and the limiting device includes two limiting plates, both of which are fixedly connected to the inner wall of the handle, and the inner wall of the handle is provided with a sliding groove, and the surface of the sliding groove on the handle is slidably connected with a slider, and the side of the slider close to the limiting plate is fixedly connected with a support plate.

[0007] The effects achieved by the above-mentioned components are as follows: by setting up a replacement device, the leaf spring in the grooved precision casting module hook can be conveniently replaced after the leaf spring in the grooved precision casting module hook is fatigued, thereby improving the efficiency of replacing the leaf spring, reducing the complexity of maintaining the grooved precision casting module hook, and at the same time ensuring the service life of the grooved precision casting module hook as much as possible; by setting up a telescopic device, the length of the grooved precision casting module hook can be adjusted, thereby improving the flexibility of the use of the grooved precision casting module hook as much as possible, and improving the convenience of the grooved precision casting module hook during use; by setting up a limit device, the position of the leaf spring can be restricted and positioned when replacing the leaf spring of the grooved precision casting module hook, thereby facilitating the operation of replacing the leaf spring as much as possible, reducing the difficulty of replacing the leaf spring, and improving the efficiency of leaf spring installation.

[0008] Preferably, the replacement device also includes a mounting block fixedly connected to the inner wall of the handle, the upper surface of the mounting block is rotatably connected to a sleeve plate, the inner wall of the sleeve plate is slidably connected to a rotating plate, and the rotating plate is rotatably connected to the push block.

[0009] The effects achieved by the above components are: by setting the mounting block, the sleeve plate and the rotating plate can be installed, and by setting the sleeve plate and the rotating plate, the rotation of the push block can be restricted during the movement of the push block.

[0010] Preferably, a limiting block is fixedly connected to the surface of the slide plate, and a pull plate is fixedly connected to one end of the slide plate close to the connecting block.

[0011] The effects achieved by the above components are: by setting the limit block, the position of the slide plate can be restricted, and by setting the pull plate, the position of the slide plate can be conveniently moved.

[0012] Preferably, a connecting plate is fixedly connected to one side of the slide plate close to the leaf spring, and an adjusting screw is threadedly inserted into the inner wall of the connecting plate.

[0013] The effect achieved by the above components is: by setting the connecting plate, the adjusting screw can be connected to the slide plate, and the adjusting screw threadedly inserted into the inner wall of the connecting plate can be adjusted in position by rotating it.

[0014] Preferably, one end of the adjusting screw rod close to the leaf spring is rotatably connected to a clamping plate, one side of the clamping plate close to the connecting plate is fixedly connected to a limiting rod, and the limiting rod is slidably connected to the inner wall of the connecting plate.

[0015] The effects achieved by the above components are: by setting an adjusting screw, the position of the splint can be easily adjusted, and the adjusting screw rotatably connected to the splint can adjust the position of the splint without driving the splint to rotate. By setting a limit rod, the splint can be prevented from rotating.

[0016] Preferably, the telescopic device also includes a second fixed plate fixedly connected to the handle surface, the surface of the connecting rod is fixedly connected to a second arc plate, the second fixed plate is fixedly connected to a positioning rod on one side close to the connecting rod, and the positioning rod is slidably connected to the inner wall of the second arc plate.

[0017] The effects achieved by the above components are: by providing the second fixing plate, the positioning rod can be connected to the handle, and by providing the positioning rod and the second arc plate, a positioning effect can be achieved in the process of connecting the handle and the connecting rod.

[0018] Preferably, a first fixing plate is fixedly connected to the surface of the handle, a first arc-shaped plate is fixedly connected to the surface of the connecting rod, and connecting screws are threadedly inserted into the inner walls of the first fixing plate and the first arc-shaped plate.

[0019] The effects achieved by the above components are: by setting the first fixing plate, the connecting screw can be connected to the handle, and by setting the first fixing plate, the first arc plate and the connecting screw, the stability of the connection between the handle and the connecting rod can be ensured as much as possible.

[0020] Preferably, a limiting ring is fixedly connected to the surface of the connecting rod, and the limiting ring is slidably connected to the inner wall of the adjusting cylinder.

[0021] The effect achieved by the above components is that the limiting ring slidably connected to the inner wall of the adjusting cylinder will not affect the rotation of the connecting rod. By setting the limiting ring, the stability of the rotation of the connecting rod inside the adjusting cylinder can be guaranteed.

[0022] Preferably, the limiting device further comprises two clamping plates fixedly connected to the upper surface of the supporting plate, and a stopper rod is fixedly connected to one side of the two clamping plates close to the leaf spring.

[0023] The effects achieved by the above components are: by providing the clamping plate and the stopper rod, the effect of limiting the position of the leaf spring can be improved, and the stability of the leaf spring when it moves during the installation of the leaf spring can be improved.

[0024] Preferably, a fixing rod is fixedly connected to the inner wall of the slider, the fixing rod is fixedly connected to the surface of the slide groove on the handle, the surface of the fixing rod is sleeved with a spring, and both ends of the spring are fixedly connected to the slider and the handle respectively.

[0025] The effects achieved by the above components are: by setting the fixing rod, the position of the spring can be restricted, by setting the spring, the movement of the slider can be assisted, and by setting the fixing rod and the spring, the smoothness of the slider during movement can be improved.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention provides a replacement device, which can facilitate the replacement of the leaf spring in the grooved precision casting module hook after the leaf spring in the grooved precision casting module hook is fatigued, thereby improving the efficiency of replacing the leaf spring, reducing the complexity of maintaining the grooved precision casting module hook, and at the same time ensuring the service life of the grooved precision casting module hook as much as possible.

[0028] 2. The present invention provides a telescopic device to adjust the length of the grooved precision casting module hook, thereby improving the flexibility of the use of the grooved precision casting module hook as much as possible and improving the convenience of the grooved precision casting module hook during use.

[0029] 3. The present invention sets a limit device to limit and locate the position of the leaf spring when replacing the leaf spring of the grooved precision casting module hook, thereby facilitating the operation of replacing the leaf spring as much as possible, reducing the difficulty of replacing the leaf spring and improving the efficiency of leaf spring installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0032] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure;

[0033] Figure 4 It is a structural schematic diagram of the skateboard of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the push block of the present invention;

[0035] Figure 6 For the present invention Figure 1 Schematic diagram of the local structure;

[0036] Figure 7 For the present invention Figure 2 A magnified image of point A;

[0037] Figure 8 For the present invention Figure 2 Schematic diagram of the local structure;

[0038] Fig. 9 It is a schematic diagram of the structure of the limiting device of the present invention;

[0039] Fig.10 For the present invention Fig. 9 Schematic diagram of the local structure.

[0040] In the figure: 1-module body; 2-connecting tube; 3-hook body; 4-leaf spring; 5-handle; 6-replacement device; 601-push block; 602-advance screw; 603-rotating plate; 604-set plate; 605-mounting block; 606-fixing ring; 607-connecting block; 608-slide plate; 609-pull plate; 610-limiting block; 611-connecting plate; 612-adjusting screw; 613-clamp plate; 614-limiting rod ;7- telescopic device;701- connecting rod;702- threaded ring;703- adjusting cylinder;704- limiting ring;705- first fixed plate;706- second fixed plate;707- first arc plate;708- second arc plate;709- connecting screw;710- positioning rod;8- limiting device;81- limiting plate;82- sliding block;83- supporting plate;84- clamping plate;85- push rod;86- fixing rod;87- spring. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-10The present invention provides a technical solution: a groove type precision casting mold hook, comprising a mold body 1, a connecting tube 2 is installed on the upper surface of the mold body 1, a handle 5 is fixedly connected to the end of the connecting tube 2 away from the mold body 1, a hook body 3 is installed inside the handle 5, a leaf spring 4 is installed inside the handle 5, and the leaf spring 4 is tightly fitted with the hook body 3, and also includes: a replacement device 6 arranged inside the handle 5 for installing and removing the leaf spring 4, the replacement device 6 includes a propulsion screw 602, the propulsion screw 602 is threadedly inserted on the inner wall of the handle 5, and the end of the propulsion screw 602 close to the hook body 3 is rotatably connected to a push block 601, the upper surface of the push block 601 is an inclined surface, the inner wall of the handle 5 is fixedly connected to a fixing ring 606, the inner wall of the fixing ring 606 is fixedly connected to a connecting block 607, the inner wall of the connecting block 607 is slidably connected to a slide plate 608, and the slide plate 608 is slidably connected to the inner wall of the connecting block 607. 08 fits tightly with the leaf spring 4, and the vertical cross-section of the slide plate 608 is "L"-shaped; a telescopic device 7 is arranged at the end of the handle 5 away from the module body 1 to adjust the length of the handle 5, and the telescopic device 7 includes a connecting rod 701, and the connecting rod 701 is installed at the end of the handle 5 away from the module body 1. The surface of the connecting rod 701 is sleeved with a threaded ring 702, and the connecting rod 701 is threadedly inserted in the inner wall of the threaded ring 702, and the surface of the threaded ring 702 is fixedly connected with an adjusting cylinder 703; a limiting device 8 is arranged inside the handle 5 to limit the position of the leaf spring 4 when replacing the leaf spring 4, and the limiting device 8 includes two limiting plates 81, and the two limiting plates 81 are fixedly connected to the inner wall of the handle 5, and the inner wall of the handle 5 is provided with a sliding groove, and the surface of the sliding groove on the handle 5 is slidably connected with a slider 82, and the side of the slider 82 close to the limiting plate 81 is fixedly connected with a support plate 83. By setting up the replacement device 6, the leaf spring 4 in the grooved precision casting module hook can be conveniently replaced after the leaf spring 4 in the grooved precision casting module hook is fatigued, thereby improving the efficiency of replacing the leaf spring 4, reducing the complexity of maintaining the grooved precision casting module hook, and at the same time ensuring the service life of the grooved precision casting module hook as much as possible; by setting up the telescopic device 7, the length of the grooved precision casting module hook can be adjusted, thereby improving the flexibility of the use of the grooved precision casting module hook as much as possible, and improving the convenience of the grooved precision casting module hook during use; by setting up the limit device 8, the position of the leaf spring 4 can be limited and positioned when replacing the leaf spring 4 of the grooved precision casting module hook, thereby facilitating the operation of replacing the leaf spring 4 as much as possible, reducing the difficulty of replacing the leaf spring 4, and improving the efficiency of installing the leaf spring 4.

[0043] The specific arrangement and functions of the replacement device 6, the telescopic device 7 and the limiting device 8 are described in detail below.

[0044] like Figure 1-Figure 6As shown, the replacement device 6 also includes a mounting block 605 fixedly connected to the inner wall of the handle 5, the upper surface of the mounting block 605 is rotatably connected to the sleeve plate 604, the inner wall of the sleeve plate 604 is slidably connected to the rotating plate 603, and the rotating plate 603 is rotatably connected to the push block 601. By setting the mounting block 605, the sleeve plate 604 and the rotating plate 603 can be installed, and by setting the sleeve plate 604 and the rotating plate 603, the rotation of the push block 601 can be limited during the movement of the push block 601. The surface of the slide plate 608 is fixedly connected to the limit block 610, and the end of the slide plate 608 close to the connection block 607 is fixedly connected to the pull plate 609. By setting the limit block 610, the position of the slide plate 608 can be limited, and by setting the pull plate 609, the position of the slide plate 608 can be conveniently moved.

[0045] The side of the slide plate 608 close to the leaf spring 4 is fixedly connected with a connecting plate 611, and the inner wall of the connecting plate 611 is threadedly inserted with an adjusting screw 612. By setting the connecting plate 611, the adjusting screw 612 can be connected to the slide plate 608, and the adjusting screw 612 threadedly inserted in the inner wall of the connecting plate 611 can adjust its position by rotation. The end of the adjusting screw 612 close to the leaf spring 4 is rotatably connected with a clamping plate 613, and the side of the clamping plate 613 close to the connecting plate 611 is fixedly connected with a limiting rod 614, and the limiting rod 614 is slidably connected to the inner wall of the connecting plate 611. By setting the adjusting screw 612, the position of the clamping plate 613 can be conveniently adjusted. The adjusting screw 612 rotatably connected to the clamping plate 613 can adjust the position of the clamping plate 613 without driving the clamping plate 613 to rotate. By setting the limiting rod 614, the clamping plate 613 can be prevented from rotating.

[0046] like Figure 1 and Figure 2 as well as Figure 6 and Figure 7 As shown, the telescopic device 7 further includes a second fixing plate 706 fixedly connected to the surface of the handle 5, a second arc-shaped plate 708 fixedly connected to the surface of the connecting rod 701, a positioning rod 710 fixedly connected to the side of the second fixing plate 706 close to the connecting rod 701, and the positioning rod 710 is slidably connected to the inner wall of the second arc-shaped plate 708. By providing the second fixing plate 706, the positioning rod 710 can be connected to the handle 5, and by providing the positioning rod 710 and the second arc-shaped plate 708, a positioning effect can be achieved in the process of connecting the handle 5 and the connecting rod 701.

[0047] The surface of the handle 5 is fixedly connected with a first fixing plate 705, the surface of the connecting rod 701 is fixedly connected with a first arc plate 707, and the inner walls of the first fixing plate 705 and the first arc plate 707 are threadedly inserted with a connecting screw 709. By providing the first fixing plate 705, the connecting screw 709 can be connected to the handle 5, and by providing the first fixing plate 705, the first arc plate 707 and the connecting screw 709, the stability of the connection between the handle 5 and the connecting rod 701 can be guaranteed as much as possible. The surface of the connecting rod 701 is fixedly connected with a limiting ring 704, and the limiting ring 704 is slidably connected to the inner wall of the adjusting cylinder 703. The limiting ring 704 slidably connected to the inner wall of the adjusting cylinder 703 will not affect the rotation of the connecting rod 701. By providing the limiting ring 704, the stability of the rotation of the connecting rod 701 inside the adjusting cylinder 703 can be guaranteed.

[0048] like Figure 2 and Figure 8-Figure 10 As shown, the limiting device 8 also includes two clamping plates 84 fixedly connected to the upper surface of the supporting plate 83, and the two clamping plates 84 are fixedly connected to the side close to the leaf spring 4 with a stopper 85. By providing the clamping plates 84 and the stopper 85, the effect of limiting the position of the leaf spring 4 can be improved, and the stability of the leaf spring 4 when moving during the installation of the leaf spring 4 can be improved.

[0049] The inner wall of the slider 82 is fixedly connected with a fixing rod 86, which is fixedly connected to the surface of the slide groove on the handle 5. The surface of the fixing rod 86 is covered with a spring 87, and the two ends of the spring 87 are respectively fixedly connected to the slider 82 and the handle 5. By setting the fixing rod 86, the position of the spring 87 can be limited, and by setting the spring 87, the movement of the slider 82 can be assisted. By setting the fixing rod 86 and the spring 87, the smoothness of the slider 82 during movement can be improved.

[0050] Working principle: Before using the grooved precision casting module hook, it needs to be assembled, and the handle 5 and the module body 1 are connected by the connecting tube 2, and the position of the connecting tube 2 and the module body 1 can be fixed by the leaf spring 4 and the hook body 3. When the leaf spring 4 needs to be replaced, the advancing screw 602 is rotated to make it rotate on the inner wall of the handle 5. At this time, the advancing screw 602 rotates on the surface of the pushing block 601, so that the pushing block 601 drives the rotating plate 603 to rotate. At the same time, the rotating plate 603 slides on the inner wall of the sleeve plate 604, so that the sleeve plate 604 rotates on the surface of the mounting block 605. The movement of the pushing block 601 causes the leaf spring 4 to contract, thereby releasing the restriction on the position of the leaf spring 4 of the hook body 3. Then, the sliding plate 608 is pulled by the pulling plate 609 to slide on the inner wall of the connecting block 607, so that the sliding plate 608 drives the leaf spring 4 to move away from the hook body 3, and then the adjusting screw 612 is rotated to make it rotate on the inner wall of the connecting plate 611. At this time, the limiting rod 614 slides on the inner wall of the connecting plate 611 and the clamping plate 613 moves Move away from the leaf spring 4, move the leaf spring 4 away from the slide plate 608, move the leaf spring 4 to be installed close to the slide plate 608, rotate the adjusting screw 612, so that the clamping plate 613 limits the position of the leaf spring 4, and move the slide plate 608 to make the leaf spring 4 move away from the fixing ring 606. When the leaf spring 4 is inserted into the hook body 3, the limit block 610 abuts against the connecting block 607, and the replacement of the leaf spring 4 is completed. By setting the replacement device 6, the leaf spring 4 in the groove type precision casting module hook can be replaced after the leaf spring 4 in the groove type precision casting module hook is fatigued, which improves the efficiency of replacing the leaf spring 4, reduces the complexity of maintaining the groove type precision casting module hook, and at the same time ensures the service life of the groove type precision casting module hook as much as possible.

[0051] When it is necessary to adjust the length of the handle 5, first move the connecting rod 701 close to the handle 5 so that the positioning rod 710 on the second fixed plate 706 is inserted into the second curved plate 708, and then rotate the connecting screw 709 to make it rotate on the inner wall of the first fixed plate 705, thereby connecting the first fixed plate 705 and the first curved plate 707 to complete the installation of the connecting rod 701, and then rotate the adjusting cylinder 703 to drive the threaded ring 702 to rotate on the surface of the connecting rod 701, thereby completing the length adjustment. By setting the limit ring 704, the stability during length adjustment can be improved. By setting the telescopic device 7, the length of the grooved precision casting module hook can be adjusted, so that the flexibility of the grooved precision casting module hook can be improved as much as possible, and the convenience of the grooved precision casting module hook during use can be improved.

[0052] When replacing the leaf spring 4, after pulling the slide plate 608 to drive the leaf spring 4 away from the module body 1, the leaf spring 4 is removed, the support plate 83 is grasped, and the leaf spring 4 to be installed is moved and inserted between the support plate 83 and the push rod 85. At this time, the support plate 83, the push rod 85 and the clamping plate 84 can limit the position of the leaf spring 4, and then the leaf spring 4 is controlled to move and insert between the two limit plates 81, and then the slide plate 608 is used to drive the leaf spring 4 to move close to the hook body 3. During this process, the slider 82 slides on the surface of the fixed rod 86, and the spring 87 stretches, which is convenient for the installation of the leaf spring 4. By setting the limit device 8, the position of the leaf spring 4 can be limited and positioned when the leaf spring 4 of the groove-type precision casting module hook is replaced, so that the operation of replacing the leaf spring 4 can be as convenient as possible, the difficulty of replacing the leaf spring 4 is reduced, and the efficiency of installing the leaf spring 4 is improved.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grooved precision casting module hook, comprising a module body (1), characterized in that: A connecting tube (2) is installed on the upper surface of the module body (1); a handle (5) is fixedly connected to one end of the connecting tube (2) away from the module body (1); a hook body (3) is installed inside the handle (5); a leaf spring (4) is installed inside the handle (5); the leaf spring (4) is tightly fitted with the hook body (3); and further comprises: A replacement device (6) is arranged inside the handle (5) and is used for installing and removing the leaf spring (4). The replacement device (6) comprises a propulsion screw (602), the propulsion screw (602) is threadedly inserted into the inner wall of the handle (5), and the propulsion screw (602) is rotatably connected to a push block (601) at one end close to the hook body (3), and the upper surface of the push block (601) is an inclined surface. The inner wall of the handle (5) is fixedly connected to a fixing ring (606), and the inner wall of the fixing ring (606) is fixedly connected to a connecting block (607), and the inner wall of the connecting block (607) is slidably connected to a slide plate (608), and the slide plate (608) is tightly fitted with the leaf spring (4), and the vertical cross-section of the slide plate (608) is "L"-shaped; A telescopic device (7) is arranged at one end of the handle (5) away from the module body (1) and is used to adjust the length of the handle (5), the telescopic device (7) comprising a connecting rod (701), the connecting rod (701) is installed at one end of the handle (5) away from the module body (1), a threaded ring (702) is sleeved on the surface of the connecting rod (701), the connecting rod (701) is threadedly inserted into the inner wall of the threaded ring (702), and an adjustment cylinder (703) is fixedly connected to the surface of the threaded ring (702); A limiting device (8) is arranged inside the handle (5) and is used to limit the position of the leaf spring (4) when replacing the leaf spring (4). The limiting device (8) includes two limiting plates (81). The two limiting plates (81) are fixedly connected to the inner wall of the handle (5). The inner wall of the handle (5) is provided with a sliding groove. The surface of the sliding groove on the handle (5) is slidably connected to a slider (82). The slider (82) is fixedly connected to a supporting plate (83) on one side close to the limiting plate (81).

2. A grooved precision casting module hook according to claim 1, characterized in that: The replacement device (6) further comprises a mounting block (605) fixedly connected to the inner wall of the handle (5); the upper surface of the mounting block (605) is rotatably connected to a sleeve plate (604); the inner wall of the sleeve plate (604) is slidably connected to a rotating plate (603); and the rotating plate (603) is rotatably connected to the push block (601).

3. A grooved precision casting module hook according to claim 1, characterized in that: The surface of the slide plate (608) is fixedly connected to a limiting block (610), and one end of the slide plate (608) close to the connecting block (607) is fixedly connected to a pulling plate (609).

4. The grooved precision casting module hook according to claim 1, characterized in that: A connecting plate (611) is fixedly connected to one side of the slide plate (608) close to the leaf spring (4), and an adjusting screw (612) is threadedly inserted into the inner wall of the connecting plate (611).

5. A grooved precision casting module hook according to claim 4, characterized in that: One end of the adjusting screw rod (612) close to the leaf spring (4) is rotatably connected to a clamping plate (613), and one side of the clamping plate (613) close to the connecting plate (611) is fixedly connected to a limiting rod (614), and the limiting rod (614) is slidably connected to the inner wall of the connecting plate (611).

6. The grooved precision casting module hook according to claim 1, characterized in that: The telescopic device (7) also includes a second fixed plate (706) fixedly connected to the surface of the handle (5), the surface of the connecting rod (701) is fixedly connected to a second curved plate (708), and the second fixed plate (706) is fixedly connected to a positioning rod (710) on one side close to the connecting rod (701), and the positioning rod (710) is slidably connected to the inner wall of the second curved plate (708).

7. The grooved precision casting module hook according to claim 1, characterized in that: A first fixing plate (705) is fixedly connected to the surface of the handle (5), a first arc-shaped plate (707) is fixedly connected to the surface of the connecting rod (701), and a connecting screw (709) is threadedly inserted into the inner walls of the first fixing plate (705) and the first arc-shaped plate (707).

8. The grooved precision casting module hook according to claim 1, characterized in that: A limiting ring (704) is fixedly connected to the surface of the connecting rod (701), and the limiting ring (704) is slidably connected to the inner wall of the adjusting cylinder (703).

9. The groove type precision casting module hook according to claim 1, characterized in that: The limiting device (8) further comprises two clamping plates (84) fixedly connected to the upper surface of the supporting plate (83), and a stopper (85) is fixedly connected to one side of the two clamping plates (84) close to the leaf spring (4).

10. The groove type precision casting module hook according to claim 1, characterized in that: The inner wall of the slider (82) is fixedly connected with a fixing rod (86), and the fixing rod (86) is fixedly connected to the surface of the slide groove on the handle (5). The surface of the fixing rod (86) is sleeved with a spring (87), and the two ends of the spring (87) are respectively fixedly connected to the slider (82) and the handle (5).

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