Inner hole hoisting tool

Abstract

The utility model relates to the technical field of hoisting tools, in particular to an inner hole hoisting tool, which improves the convenience of hoisting operation of an inner hole of a workpiece and improves the hoisting stability of the workpiece. Comprising a top plate and a base arranged at the bottom end of the top plate. The device comprises a base and further comprises a connecting device, a supporting device, multiple sets of supporting arms, multiple sets of hooking pieces, a supporting plate and an inclined face, the upper portions of the multiple sets of supporting arms are rotationally installed on the outer side wall of the base through the connecting device, the multiple sets of hooking pieces are arranged at the bottoms of the multiple sets of supporting arms respectively, and the supporting plate is installed on the supporting device which is used for driving the supporting plate to ascend and descend. Inclined surfaces are arranged on the outer side walls of the supporting arms and are in sliding contact with the outer side walls of the supporting plates.

Description

Technical Field

[0001] This utility model relates to the technical field of hoisting fixtures, and in particular to an internal hole hoisting fixture. Background Technology

[0002] In many fields such as industrial production, equipment installation and maintenance, hoisting operations are a common and critical process. For parts or equipment with internal holes, traditional hoisting methods often fail to meet the requirements for efficient, safe and precise hoisting.

[0003] For example, the existing technology authorization announcement number CN207918251U, the utility model relates to a lifting tool and a lifting device using the tool; the lifting tool has an insertion part for penetrating the inner hole of a workpiece with an inner hole, one end of the insertion part is provided with a hook connection structure for connecting with a hook, and the other end is provided with a support structure for supporting the workpiece.

[0004] However, it was found during the use of the device that it was not very convenient for lifting workpieces into their inner holes, which reduced work efficiency and the stability of workpiece lifting operations. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an internal hole lifting fixture that improves the convenience of lifting operations on the inner hole of a workpiece and enhances the stability of workpiece lifting.

[0006] This utility model discloses an internal hole lifting fixture, comprising a top plate and a base, with the base positioned at the bottom of the top plate; it also includes a connecting device, a supporting device, multiple sets of support arms, multiple sets of hooks, a support plate, and an inclined surface. The upper parts of the multiple sets of support arms are rotatably mounted on the outer wall of the base via the connecting device. The multiple sets of hooks are respectively positioned at the bottom of the multiple sets of support arms. The support plate is mounted on the supporting device, which drives the support plate to move up and down. The outer walls of the multiple sets of support arms are provided with inclined surfaces, which slide in contact with the outer wall of the support plate. When the lower parts of the multiple sets of support arms are passed through the internal hole of the workpiece, the multiple... The hook assembly moves to the bottom of the workpiece, and then the support plate moves upward through the support device. After the support plate moves upward, multiple sets of inclined planes support multiple sets of support arms that swing away from each other, thereby moving the multiple sets of hook assemblies away from each other to hook and limit the bottom of the workpiece. At the same time, the multiple sets of support arms contact and press against the inner hole of the workpiece. Then, by moving the top plate upward, the fixture lifts the workpiece through the inner hole. When the support plate moves downward, the multiple sets of support arms naturally move closer to each other under gravity and swing, improving the convenience of lifting the inner hole of the workpiece and improving the stability of lifting the workpiece.

[0007] Preferably, the support device includes an internal threaded assembly, a stud, a telescopic rod, a worm gear, a worm, and a motor. The internal threaded assembly is rotatably mounted on the top of the top plate. The stud passes through the interior of the internal threaded assembly, and its bottom end is fixedly connected to the top of the support plate. Multiple sets of telescopic rods are respectively arranged between the top of the support plate and the bottom of the base. The worm gear is mounted on the outer wall of the internal threaded assembly, and the worm is rotatably mounted on the outer wall of the top plate, meshing with the worm gear. The motor is mounted on the outer wall of the top plate, and its output end is connected to the worm. The motor drives the worm to rotate, and the rotation of the worm drives the internal threaded assembly to rotate through the worm gear. The rotation of the internal threaded assembly drives the stud to move up or down, thereby adjusting the lifting and lowering of the support plate, improving the convenience of controlling the opposing movement of multiple sets of support arms, and improving the lifting stability of the workpiece by multiple sets of support arms.

[0008] Preferably, the connecting device includes multiple sets of U-shaped parts, multiple sets of screws, and multiple sets of nuts. The multiple sets of U-shaped parts are all installed on the outer wall of the base, the multiple sets of screws pass through the multiple sets of U-shaped parts, the multiple sets of nuts are fitted and installed at the ends of the multiple sets of screws, and the multiple sets of support arms are rotatably installed on the multiple sets of screws. By setting multiple sets of screws and multiple sets of nuts, the ease of installation and removal of the multiple sets of support arms is improved.

[0009] Preferably, it also includes a coupling, which is disposed between the motor and the worm gear; this improves the overload protection of the motor and avoids damage to the worm gear.

[0010] Preferably, it also includes a limiting plate, which is set at the top of the stud; to improve the movement limiting effect of the stud.

[0011] Preferably, it also includes a hook, which is installed on the outer wall of the top plate; this improves the convenience of lifting the tooling using the hook in external hoisting setups.

[0012] Preferably, it also includes a side plate, which is set on the upper part of the hook; by setting the side plate, the external hook is limited, thereby improving the stability of the tooling during vertical lifting.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the lower parts of multiple sets of support arms pass through the inner hole of the workpiece, at which time multiple sets of hooks move to the bottom of the workpiece, and then the support plate is driven to move upward through the support device. After the support plate moves upward, multiple sets of inclined surfaces support the multiple sets of support arms to swing away from each other, thereby moving the multiple sets of hooks away from each other to hook and limit the bottom of the workpiece. At the same time, the multiple sets of support arms contact and press against the inner hole of the workpiece. Then, by moving the top plate upward, the fixture is lifted through the inner hole of the workpiece. When the support plate moves downward, the multiple sets of support arms naturally move closer to each other and swing under gravity, which improves the convenience of lifting the inner hole of the workpiece and improves the stability of lifting the workpiece. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a partial isometric structural diagram of the connection between the top plate and the U-shaped components, etc.

[0016] Figure 3 This is a partial isometric structural diagram of the connection between the worm gear and couplings, etc.

[0017] Figure 4 This is a partial isometric structural diagram of the connection between the support arm and hooks, etc.

[0018] Figure 5 This is an isometric structural diagram of the connection between the hook and the side plate, etc.

[0019] The following are labels in the attached diagram: 1. Top plate; 2. Base; 3. Support arm; 4. Hook; 5. Support plate; 6. Inclined surface; 7. Internal threaded fitting; 8. Stud; 9. Telescopic rod; 10. Worm gear; 11. Worm; 12. Motor; 13. U-shaped part; 14. Screw; 15. Nut; 16. Coupling; 17. Limiting plate; 18. Hook; 19. Side plate. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the present invention provides an internal hole hoisting fixture, which includes a top plate 1 and a base 2, with the base 2 disposed at the bottom of the top plate 1; it also includes a connecting device, a supporting device, multiple sets of supporting arms 3, multiple sets of hooks 4, a supporting plate 5, and an inclined surface 6. The upper parts of the multiple sets of supporting arms 3 are rotatably mounted on the outer wall of the base 2 through the connecting device. The multiple sets of hooks 4 are respectively disposed at the bottom of the multiple sets of supporting arms 3. The supporting plate 5 is mounted on the supporting device, which is used to drive the supporting plate 5 to move up and down. The outer wall of the multiple sets of supporting arms 3 is provided with an inclined surface 6, which slides in contact with the outer wall of the supporting plate 5.

[0023] like Figure 3As shown, the support device includes an internal threaded assembly 7, a stud 8, a telescopic rod 9, a worm gear 10, a worm 11, and a motor 12. The internal threaded assembly 7 is rotatably mounted on the top of the top plate 1. The stud 8 passes through the interior of the internal threaded assembly 7 and is fixedly connected to the top of the support plate 5 at its bottom end. Multiple sets of telescopic rods 9 are respectively arranged between the top of the support plate 5 and the bottom of the base 2. The worm gear 10 is mounted on the outer wall of the internal threaded assembly 7. The worm 11 is rotatably mounted on the outer wall of the top plate 1 and meshes with the worm gear 10. The motor 12 is mounted on the outer wall of the top plate 1 and its output end is connected to the worm 11.

[0024] In this embodiment, the lower parts of multiple sets of support arms 3 pass through the inner hole of the workpiece. At this time, multiple sets of hooks 4 move to the bottom of the workpiece. Then, the support plate 5 is driven to move upward by the support device. After the support plate 5 moves upward, multiple sets of inclined surfaces 6 support the multiple sets of support arms 3 to swing away from each other, thereby moving the multiple sets of hooks 4 away from each other to hook and limit the bottom of the workpiece. At the same time, the multiple sets of support arms 3 contact and press with the inner hole of the workpiece. Then, by moving the top plate 1 upward, the fixture is lifted through the inner hole of the workpiece. When the support plate 5 moves downward, the multiple sets of support arms 3 naturally swing closer to each other under gravity, which improves the convenience of lifting the inner hole of the workpiece and improves the stability of lifting the workpiece.

[0025] Example 2

[0026] Based on Example 1, such as Figure 4 As shown, this utility model provides an internal hole lifting fixture. The connecting device includes multiple sets of U-shaped parts 13, multiple sets of screws 14, and multiple sets of nuts 15. The multiple sets of U-shaped parts 13 are all installed on the outer side wall of the base 2. The multiple sets of screws 14 pass through the multiple sets of U-shaped parts 13. The multiple sets of nuts 15 are fitted and installed at the ends of the multiple sets of screws 14. The multiple sets of support arms 3 are rotatably installed on the multiple sets of screws 14.

[0027] like Figure 3 As shown, it also includes a coupling 16, which is disposed between the motor 12 and the worm gear 11;

[0028] like Figure 3 As shown, it also includes a limiting plate 17, which is disposed at the top of the stud 8;

[0029] like Figure 1 As shown, it also includes a hook 18, which is disposed on the outer side wall of the top plate 1;

[0030] like Figure 5 As shown, it also includes a side plate 19, which is disposed on the upper part of the hook 18;

[0031] In this embodiment, the motor 12 drives the worm gear 11 to rotate. After the worm gear 11 rotates, it drives the internal thread assembly 7 to rotate through the worm wheel 10. After the internal thread assembly 7 rotates, it drives the stud 8 to move up or down, thereby adjusting the lifting and moving of the support plate 5. This improves the convenience of controlling the opposing movement of the multiple sets of support arms 3 and improves the lifting stability of the multiple sets of support arms 3 on the workpiece. By setting multiple sets of screws 14 and multiple sets of nuts 15, the ease of loading and unloading the multiple sets of support arms 3 is improved.

[0032] This utility model discloses an internal hole lifting fixture. During operation, multiple sets of support arms 3 pass through the inner hole of the workpiece. At this time, multiple sets of hooks 4 move to the bottom of the workpiece. Then, the support plate 5 is driven to move upward through the support device. After the support plate 5 moves upward, multiple sets of inclined surfaces 6 support the multiple sets of support arms 3 to swing away from each other, thereby moving the multiple sets of hooks 4 away from each other to hook and limit the bottom of the workpiece. At the same time, the multiple sets of support arms 3 contact and press against the inner hole of the workpiece. Then, by moving the top plate 1 upward, the fixture lifts the workpiece through the inner hole. When the support plate 5 moves downward, the multiple sets of support arms 3 naturally swing closer to each other under gravity.

[0033] The motor 12 and coupling 16 of the internal hole hoisting fixture of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An internal hole hoisting fixture, comprising a top plate (1) and a base (2), wherein the base (2) is disposed at the bottom end of the top plate (1); characterized in that, It also includes a connecting device, a supporting device, multiple sets of supporting arms (3), multiple sets of hooks (4), a supporting plate (5) and an inclined surface (6). The upper part of the multiple sets of supporting arms (3) is rotatably mounted on the outer wall of the base (2) through the connecting device. The multiple sets of hooks (4) are respectively set at the bottom of the multiple sets of supporting arms (3). The supporting plate (5) is mounted on the supporting device. The supporting device is used to drive the supporting plate (5) to move up and down. The outer wall of the multiple sets of supporting arms (3) is provided with an inclined surface (6). The inclined surface (6) slides in contact with the outer wall of the supporting plate (5).

2. The internal hole lifting fixture as described in claim 1, characterized in that, The support device includes an internal threaded kit (7), a stud (8), a telescopic rod (9), a worm gear (10), a worm (11), and a motor (12). The internal threaded kit (7) is rotatably installed on the top of the top plate (1). The stud (8) passes through the inside of the internal threaded kit (7). The bottom end of the stud (8) is fixedly connected to the top of the support plate (5). Multiple sets of telescopic rods (9) are respectively set between the top of the support plate (5) and the bottom of the base (2). The worm gear (10) is installed on the outer wall of the internal threaded kit (7). The worm (11) is rotatably installed on the outer wall of the top plate (1). The worm (11) meshes with the worm gear (10). The motor (12) is installed on the outer wall of the top plate (1). The output end of the motor (12) is connected to the worm (11).

3. The internal hole lifting fixture as described in claim 1, characterized in that, The connecting device includes multiple sets of U-shaped parts (13), multiple sets of screws (14) and multiple sets of nuts (15). The multiple sets of U-shaped parts (13) are all installed on the outer wall of the base (2). The multiple sets of screws (14) pass through the multiple sets of U-shaped parts (13). The multiple sets of nuts (15) are fitted and installed at the ends of the multiple sets of screws (14). The multiple sets of support arms (3) are rotatably installed on the multiple sets of screws (14).

4. The internal hole lifting fixture as described in claim 2, characterized in that, It also includes a coupling (16), which is disposed between the motor (12) and the worm (11).

5. The internal hole lifting fixture as described in claim 2, characterized in that, It also includes a limiting plate (17), which is set at the top of the stud (8).

6. The internal hole lifting fixture as described in claim 1, characterized in that, It also includes a hook (18), which is set on the outer wall of the top plate (1).

7. The internal hole lifting fixture as described in claim 6, characterized in that, It also includes a side plate (19), which is located on the upper part of the hook (18).

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