Guiding anti-derailing structure for operation of electric hoist

By setting a movable housing and adjustment mechanism on the electric hoist, and using the motor to drive gears and threaded rods to adjust the limit clamp, combined with the frictional resistance of the braking mechanism, the problem of flexible adjustment of the electric hoist's anti-derailment mechanism is solved, thus improving operational stability and safety.

CN224105424UActive Publication Date: 2026-04-10SHANGHAI TUOQI LIFTING EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing anti-derailment mechanism of electric hoists has a fixed structure, making it difficult to flexibly adjust the limit range according to actual usage, which affects normal operation.

Method used

It adopts a movable housing and adjustment mechanism, and drives the limit clamp to move through the motor-driven gear and threaded rod to adjust the limit range. Combined with the braking mechanism, it uses frictional resistance to improve the braking effect and prevent derailment.

Benefits of technology

It enables flexible adjustment of the limit switch according to actual conditions, reduces energy loss, improves the operational stability and safety of the electric hoist, and reduces the risk of derailment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric hoist operation guiding anti-derailing structure which comprises a movable shell, a movable track is arranged in the movable shell, an adjusting mechanism is fixedly connected to the lower portion of the movable shell, and the adjusting mechanism comprises an adjusting shell fixedly connected to the bottom of the movable shell. A third motor is arranged on one side of the adjusting shell, a third gear is arranged at the output end of the third motor, and the third gear is connected with a fourth gear in an engaged mode. When the movable shell moves on the movable track, displacement of the movable shell in the vertical direction can be limited through limiting clamps arranged on the two sides of the movable shell when the movable shell moves; and the limiting clamps can be driven to move through the adjusting mechanism, the positions of the limiting clamps on the left side and the right side can be adjusted by controlling the limiting clamps on the two sides of the movable shell to move, and therefore the limiting interval of the limiting clamps is adjusted.
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Description

TECHNICAL FIELD

[0001] The utility model relates to electric hoist technical field especially relates to a kind of electric hoist operation guiding anti-derailing structure. BACKGROUND

[0002] The background technology of electric hoist operation guiding anti-derailing structure is derived from the high requirements of safety and stability for lifting and carrying heavy objects in industrial production and construction. In the use process of electric hoist, due to various factors, derailing phenomenon may occur, which not only leads to interruption of work, but also may cause serious safety accidents. Therefore, it is particularly important to develop an electric hoist operation guiding structure that can effectively prevent derailing. This structure aims to improve the guiding and anti-derailing mechanism to ensure the smooth and safe operation of electric hoist on the track, thereby improving work efficiency, protecting the personal safety of operators and reducing accidents and losses caused by derailing.

[0003] In the actual use process of the existing device, the anti-derailing mechanism is mostly a blocking structure that limits the displacement of electric hoist. However, its structure is fixed and cannot be flexibly adjusted according to the actual use situation. Therefore, a kind of electric hoist operation guiding anti-derailing structure is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims to solve the problem that in the prior art, the anti-derailing mechanism is mostly a blocking structure that limits the displacement of electric hoist, but its structure is fixed and cannot be flexibly adjusted according to the actual use situation, which easily affects the normal operation of electric hoist. Therefore, a kind of electric hoist operation guiding anti-derailing structure is proposed.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A kind of electric hoist operation guiding anti-derailing structure, including mobile shell, mobile track is arranged in the mobile shell, the mobile shell lower part is fixedly connected with adjusting mechanism, the adjusting mechanism includes the adjusting shell of fixed connection in the bottom of mobile shell, the third motor is arranged in the adjusting shell side, the third motor output is provided with third gear, the third gear is meshed with fourth gear, the fourth gear both sides are fixedly connected with second threaded rod, the second threaded rod is screw-connected with connecting piece, the connecting piece upper part is fixedly connected with limit clamp, the limit clamp is slidably connected between mobile track, the limit clamp upper part is rotatably connected with runner.

[0007] When in use, the limiting clamps are in sliding connection with the moving rails, and can be limited in the vertical direction when the moving shell moves; the third motor is started to drive the fourth gear to rotate, the fourth gear drives the second threaded rods fixedly connected on the two sides to rotate, and the second threaded rods drive the connecting pieces in threaded connection to move, thereby driving the limiting clamps to move; the moving distance of the moving shell on the left and right sides is adjusted by controlling the movement of the limiting clamps, so that the movement of the moving shell is prevented from being affected by excessive limiting of the limiting clamps; the adjusting mechanism is provided in two numbers and is arranged at the front and rear ends of the moving shell.

[0008] The technical scheme further comprises:

[0009] The connecting beams are fixedly connected to the bottom of the moving shell and connect the left and right sides of the moving shell.

[0010] The limiting rods are fixedly connected to the upper part of the adjusting shell, and the connecting pieces are in sliding connection with the two sides of the limiting rods.

[0011] The electric hoists are fixedly connected to the lower part of the connecting beams, and the hooks are arranged at the lower part of the electric hoists.

[0012] The two driven wheels are rotatably connected to the right side of the moving shell, and the driven wheel and the driving wheel are arranged at the left side of the moving shell.

[0013] The first motor is arranged at the left side of the moving shell, and the moving assembly is arranged at the output end of the first motor.

[0014] The moving assembly comprises the fifth gear arranged at the output end of the first motor, the sixth gear in meshing connection with the fifth gear, the sixth gear in rotatable connection with the moving shell, and the driving wheel fixedly connected to the side, away from the moving shell, of the sixth gear.

[0015] The two brake mechanisms are fixedly connected to the left side of the moving shell, and the brake mechanism comprises the brake shell fixedly connected to the upper part of the moving shell, the second motor arranged at the lower part of the brake shell, and the brake assembly arranged at the output end of the second motor.

[0016] The brake assembly comprises the first gear arranged at the output end of the second motor, the second gear in meshing connection with the first gear, the first threaded rod fixedly connected to the lower part of the second gear, the transmission block in threaded connection with the first threaded rod, the connecting rod fixedly connected to the upper part of the transmission block, and the connecting rod in sliding connection with the brake shell.

[0017] The brake block is fixedly connected to the lower part of the connecting rod, and the friction surface is fixedly connected to the lower part of the brake block.

[0018] The utility model has the following beneficial effects:

[0019] 1、The utility model discloses a mobile shell moves on the mobile track, and through the limiting clamp set up at the both sides of mobile shell can limit its vertical direction displacement when moving, avoids the mobile shell to separate from the mobile track, and through the adjusting mechanism can drive the limiting clamp to move, through the limiting clamp on the both sides of mobile shell moves, can adjust the position of limiting clamp on the both sides, thereby adjusting the limiting interval of limiting clamp, avoids the mobile track frequently contacting limiting clamp in the mobile shell moving process, influences the normal movement of mobile shell, and the upper portion rotation is connected with the runner of limiting clamp, and through the runner can effectively reduce the kinetic energy loss of mobile shell when contacting limiting clamp and mobile track.

[0020] 2、The utility model discloses when the hook lifts the heavy object and moves, because the heavy object quality is bigger, when the mobile shell brakes, the inertia of heavy object can drive the mobile shell to continue moving, thereby improves the risk of mobile shell derailment, when the mobile shell brakes, through the starting brake mechanism can drive the brake block and from the wheel and driving wheel contact, thereby through the friction resistance further improves the brake effect of mobile shell. ACCURACY OF DRAWINGS

[0021] Fig. 1 The whole structure schematic diagram of the electric hoist operation guide anti-derailment structure is provided for the utility model;

[0022] Fig. 2 The first internal structure schematic diagram of the mobile shell in the utility model is provided for the utility model;

[0023] Fig. 3 The second internal structure schematic diagram of the mobile shell in the utility model is provided for the utility model;

[0024] Fig. 4 The internal structure schematic diagram of the brake shell in the utility model is provided for the utility model;

[0025] Fig. 5 The internal structure schematic diagram of the adjusting shell in the utility model is provided for the utility model;

[0026] Fig. 6 The first motor connection relation schematic diagram in the utility model is provided for the utility model.

[0027] In the drawing: 1, mobile shell, 2, first motor, 3, electric hoist, 4, hook, 5, mobile track, 6, runner, 7, limiting clamp, 8, adjusting shell, 9, driven wheel, 10, driving wheel, 11, connecting beam, 12, brake shell, 13, brake block, 14, friction surface, 15, second motor, 16, first gear, 17, second gear, 18, first threaded rod, 19, connecting rod, 20, transmission block, 21, third motor, 22, third gear, 23, fourth gear, 24, second threaded rod, 25, connecting piece, 26, limiting rod, 27, fifth gear, 28, sixth gear. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figs. 1-6 As shown, the present invention proposes an electric hoist running guide anti-derailment structure, including a movable housing 1, a movable track 5 inside the movable housing 1, an adjustment mechanism fixedly connected to the lower part of the movable housing 1, the adjustment mechanism including an adjustment housing 8 fixedly connected to the bottom of the movable housing 1, a third motor 21 on one side of the adjustment housing 8, a third gear 22 at the output end of the third motor 21, a fourth gear 23 meshing with the third gear 22, second threaded rods 24 symmetrically fixedly connected to both sides of the fourth gear 23, a connecting member 25 threadedly connected to the second threaded rods 24, a limit clamp 7 fixedly connected to the upper part of the connecting member 25, the limit clamp 7 slidingly connected to the movable track 5, and a rotating wheel 6 rotatably connected to the upper part of the limit clamp 7.

[0031] In use, the limiting clamp 7 is slidably connected to the moving track 5, which can limit the vertical movement of the moving housing 1. The third motor 21 is started to drive the fourth gear 23 to rotate. The rotation of the fourth gear 23 drives the second threaded rod 24 fixedly connected on both sides to rotate. The rotation of the second threaded rod 24 drives the threaded connecting piece 25 to move, which in turn drives the limiting clamp 7 to move. By controlling the movement of the limiting clamp 7, the movement distance on the left and right sides of the moving housing 1 can be adjusted to prevent the limiting clamp 7 from over-limiting and affecting the movement of the moving housing 1. There are two adjustment mechanisms, which are set at the front and rear ends of the moving housing 1.

[0032] The bottom of the moving shell 1 is fixedly connected with a connecting beam 11, the connecting beam 11 connects the left and right sides of the moving shell 1, the upper part of the adjusting shell 8 is fixedly connected with a limiting rod 26, the limiting rod 26 is slidably connected with a connecting piece 25 on the left and right sides, the lower part of the electric hoist 3 is fixedly connected with the connecting beam 11, the lower part of the electric hoist 3 is provided with a hook 4, the right side of the moving shell 1 is rotatably connected with two driven wheels 9, the left side of the moving shell 1 is provided with a driven wheel 9 and a driving wheel 10, the left side of the moving shell 1 is provided with a first motor 2, the output end of the first motor 2 is provided with a moving assembly, the moving assembly comprises a fifth gear 27 provided at the output end of the first motor 2, the fifth gear 27 is meshingly connected with a sixth gear 28, the sixth gear 28 is rotatably connected with the moving shell 1, and the side, away from the moving shell 1, of the sixth gear 28 is fixedly connected with the driving wheel 10.

[0033] In the embodiment, the first motor 2 is started to drive the fifth gear 27 to rotate, the fifth gear 27 drives the meshingly connected sixth gear 28 to rotate, the sixth gear 28 drives the driving wheel 10 to rotate, the driving wheel 10 drives the moving shell 1 to move on the moving track 5, the limiting clamps 7 arranged on the left and right sides of the moving shell 1 limit the vertical displacement of the moving shell 1 when the moving shell 1 moves, so that the moving shell 1 does not deviate from the moving track 5, the third motor 21 is started to drive the third gear 22 to rotate, the third gear 22 drives the meshingly connected fourth gear 23 to rotate, the fourth gear 23 drives the second threaded rods 24 arranged on the left and right sides to rotate, the second threaded rods 24 drive the screw-connected connecting pieces 25 to move, the slidingly connected limiting rods 26 limit the movement of the connecting pieces 25, the movement of the connecting pieces 25 drives the fixedly connected limiting clamps 7 to move, the limiting clamps 7 on the left and right sides of the moving shell 1 are controlled to move, the positions of the limiting clamps 7 on the left and right sides are adjusted, the limiting range of the limiting clamps 7 is adjusted, the moving track 5 does not frequently contact the limiting clamps 7 during the movement of the moving shell 1, the normal movement of the moving shell 1 is not affected, and the upper part of the limiting clamps 7 is rotatably connected with the runner 6, so that the kinetic energy loss of the moving shell 1 when the limiting clamps 7 contact the moving track 5 is effectively reduced.

[0034] Embodiment two

[0035] As Figs. 1-6As shown, the mobile shell 1 left side fixedly connected with two brake mechanism, brake mechanism includes fixedly connected on the mobile shell 1 upper brake housing 12, brake housing 12 lower part is provided with the second motor 15, the second motor 15 output is provided with brake assembly, brake assembly includes the first gear 16 that the second motor 15 output is provided, the first gear 16 is engaged with the second gear 17, the second gear 17 lower part is fixedly connected with the first threaded rod 18, the first threaded rod 18 is threadedly connected with transmission block 20, transmission block 20 upper part is fixedly connected with connecting rod 19, connecting rod 19 and brake housing 12 between slidingly connected.

[0036] Connecting rod 19 lower part is fixedly connected with brake block 13, brake block 13 lower part is fixedly connected with friction surface 14.

[0037] In the embodiment, when the hook 4 hoists the weight and moves, due to the large weight, the inertia of the weight can drive the mobile shell 1 to continue moving when the mobile shell 1 is braked, thereby increasing the risk of derailment of the mobile shell 1, when the mobile shell 1 is braked, the second motor 15 is started to drive the first gear 16 to rotate, the first gear 16 drives the second gear 17 connected with it to rotate, and the rotation of the second gear 17 drives the first threaded rod 18 fixedly connected with it to rotate, the rotation of the first threaded rod 18 drives the transmission block 20 connected with it by threads to move, the movement of the transmission block 20 drives the connecting rod 19 fixedly connected with it to move, and the movement of the connecting rod 19 drives the brake block 13 arranged below to move downward and contact the driven wheel 9 and the driving wheel 10, thereby further improving the braking effect of the mobile shell 1 by frictional resistance, and the friction surface 14 arranged at the bottom of the brake block 13 can further improve the friction of the brake block 13.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A guide anti-derailing structure for the operation of an electric hoist comprising a mobile casing (1), characterized by the fact that, The mobile shell (1) is internally provided with a mobile track (5), and the lower part of the mobile shell (1) is fixedly connected with an adjusting mechanism. When in use, the limiting clamp (7) is slidably connected with the mobile track (5), so that the vertical direction of the mobile shell (1) can be limited during movement.

2. A running guide anti-derailing structure for an electric hoist according to claim 1, characterized in that, The lower part of the mobile shell (1) is fixedly connected with a connecting beam (11), and the connecting beam (11) connects the left and right sides of the mobile shell (1).

3. The electric hoist running guide anti-derailing structure according to claim 1, characterized in that, The upper part of the adjusting shell (8) is fixedly connected with a limiting rod (26), and the connecting piece (25) is slidably connected on the two sides of the limiting rod (26).

4. The electric hoist running guide anti-derailing structure according to claim 2, characterized in that, The lower part of the connecting beam (11) is fixedly connected with an electric hoist (3), and the lower part of the electric hoist (3) is provided with a hook (4).

5. The electric hoist running guide anti-derailing structure according to claim 1, characterized in that, The right side of the mobile shell (1) is rotatably connected with two driven wheels (9), and the left side of the mobile shell (1) is provided with a driven wheel (9) and a driving wheel (10).

6. The electric hoist running guide anti-derailing structure according to claim 1, characterized in that, The left side of the mobile shell (1) is provided with a first motor (2), and the output end of the first motor (2) is provided with a moving assembly.

7. A guide anti-derailing structure for the operation of an electric hoist according to claim 6, characterized in that, The moving assembly comprises a fifth gear (27) provided at the output end of the first motor (2), a sixth gear (28) meshingly connected with the fifth gear (27), and a driving wheel (10) fixedly connected to the side, away from the mobile shell (1), of the sixth gear (28).

8. The electric hoist running guide anti-derailing structure according to claim 1, characterized in that, The left side of the mobile shell (1) is fixedly connected with two brake mechanisms. The brake mechanism comprises a brake shell (12) fixedly connected to the upper part of the mobile shell (1), a second motor (15) provided at the lower part of the brake shell (12), and a brake assembly provided at the output end of the second motor (15).

9. The electric hoist running guide anti-derailing structure according to claim 8, characterized in that, The brake assembly comprises a first gear (16) arranged at the output end of the second motor (15), the first gear (16) is in engagement with a second gear (17), the lower part of the second gear (17) is fixedly connected with a first threaded rod (18), the first threaded rod (18) is threadedly connected with a transmission block (20), the upper part of the transmission block (20) is fixedly connected with a connecting rod (19), and the connecting rod (19) is in sliding connection with the brake shell (12).

10. The electric hoist running guide anti-derailing structure according to claim 9, characterized in that, The lower part of the connecting rod (19) is fixedly connected with a brake block (13), and the lower part of the brake block (13) is fixedly connected with a friction surface (14).