Electric hoist anti-falling structure

Abstract

The utility model belongs to hoisting equipment technical field, concretely relates to a kind of electric hoist anti-falling structure, comprising: assembly seat, assembly seat middle part is provided with assembly structure;Electric hoist body, electric hoist body is set in assembly seat bottom by assembly structure;Traveling mechanism, traveling mechanism is set in the middle of assembly seat top by assembly structure, and traveling mechanism is hung on the transverse part of I-beam track;Anti-falling component, anti-falling component is provided with four, and every two is a group to constitute two groups, two groups of anti-falling component are respectively set in the both ends of assembly seat top, and the hooking part of two groups of anti-falling component is located above the top surface of the transverse part of I-beam track in normal working operation condition, for solving in long-term load operation process, when the roller or axle in traveling mechanism is damaged, the whole electric hoist hanging operation can be invalid, leading to the whole electric hoist can fall from I-beam track, there is great security risk problem.

Description

Technical Field

[0001] This utility model belongs to the technical field of hoisting equipment, and specifically relates to an anti-fall structure for electric hoists. Background Technology

[0002] An electric hoist is a small and lightweight lifting device that integrates an electric motor, transmission mechanism, and drum (or sprocket). It has a compact structure, is lightweight, and is easy to operate. It is a very common lifting machine in industrial and mining enterprises, warehouses, docks, and other places. The electric hoist can move laterally along the I-beam rail by relying on the running mechanism, which can expand the working range.

[0003] Currently, electric hoists are installed on I-beam rails mainly by the coordinated action of two opposing sets of rollers in the traveling mechanism. These two sets of rollers rest on the top surface of the transverse section of the I-beam rail, allowing the entire electric hoist to be mounted on it. However, during long-term operation under heavy loads, the two sets of rollers or axles in the traveling mechanism are easily damaged. When the rollers or axles are damaged, the mounting operation of the entire electric hoist will fail, causing the entire electric hoist to fall off the I-beam rail, posing a significant safety risk. Utility Model Content

[0004] Based on the problems mentioned in the background technology above, this utility model provides an anti-fall structure for electric hoists to solve the problem that when the rollers or axles in the traveling mechanism are damaged during long-term load operation, the entire electric hoist's mounting operation will fail, causing the entire electric hoist to fall off the I-beam rail, posing a significant safety risk.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An anti-fall structure for an electric hoist includes:

[0007] An assembly base, wherein an assembly structure is provided in the middle of the assembly base;

[0008] The electric hoist body is mounted at the bottom of the assembly base via the assembly structure.

[0009] The traveling mechanism is mounted on the top center of the assembly base via the assembly structure, and is attached to the transverse part of the I-beam rail.

[0010] The anti-fall component is provided in four parts, with two parts forming two groups. The two groups of anti-fall components are respectively located at the top two ends of the assembly base, and the hook parts of the two groups of anti-fall components are located above the top surface of the transverse part of the bottom of the I-beam rail under normal operation.

[0011] Based on the above technical solution, the present invention has made the following improvements:

[0012] Furthermore, the assembly structure includes a snap fastener and a snap groove. The snap fastener is fixedly disposed on the bottom surface of the middle part of the assembly base. There are two snap grooves, which are respectively disposed on the opposite side walls of the middle part of the assembly base. The snap fastener and the two snap grooves are connected by a plurality of through holes. Each through hole is provided with a connecting rod, and both ends of the connecting rod are threaded with nuts.

[0013] Furthermore, the electric hoist body is provided with an installation part on its periphery. The installation part is provided with a plurality of through holes one, and each through hole one corresponds to a corresponding through hole two. The installation part is fastened in the fastening part, and a connecting rod is passed through each through hole one and the corresponding through hole two. Both ends of the connecting rod are threaded with nuts.

[0014] Furthermore, the walking mechanism includes two mounting plates. Each of the two mounting plates has a fastening part on its bottom facing wall. Each of the two fastening parts has multiple through holes three. Each through hole three corresponds to a corresponding through hole two. The fastening parts on the two mounting plates are fastened into corresponding fastening grooves. A connecting rod is inserted into each through hole three and the corresponding through hole two. Both ends of the connecting rod are threaded with nuts and are tightly attached to the side wall of the mounting plate.

[0015] Two axles are rotatably mounted on the top opposing walls of the two mounting plates. Each axle is equipped with a roller and a gear ring. Each roller rests on the top surface of the transverse part of the bottom of the I-beam rail. Two rotating rods are rotatably mounted between the two mounting plates. Each of the two rotating rods has a gear one mounted on its rod body located below the bottom of the corresponding gear ring. One of the mounting plates has a mounting box on its side wall. A motor is mounted on the mounting box. A gear two is mounted on the drive shaft of the motor. Gear three is mounted on the ends of the two rotating rods located inside the mounting box. Gear two meshes with two gear three.

[0016] Furthermore, the fall arrestor includes a hook plate, with hooks at both the top and bottom. The bottom hook of the hook plate is installed on the top end of the assembly base by screws. The hooks of two hook plates in the same group are arranged opposite each other at intervals. Multiple stabilizing columns are vertically inserted through the top hook of each hook plate. A fixing plate is provided at the bottom of each stabilizing column. A fixing head is clamped at the top of each stabilizing column. A spring is sleeved on the column body between the bottom surface of the top hook of the hook plate and the top surface of the fixing plate. Under normal operating conditions, the fixing plate is located above the top surface of the transverse part of the bottom of the I-beam rail.

[0017] The beneficial effects of this utility model are:

[0018] 1. By combining the assembly base, assembly structure, electric hoist body, and traveling mechanism, the electric hoist body is assembled at the bottom of the assembly base, and the traveling mechanism is assembled at the top of the assembly base, thus assembling the electric hoist body and the traveling mechanism together.

[0019] 2. Through the combination of the assembly base and anti-fall components, under normal operating conditions, the hook part of the anti-fall component is located above the top surface of the transverse part of the bottom of the I-beam rail and does not contact it. When the rollers or axles in the traveling mechanism are damaged, the hook part of the anti-fall component can hook onto the top surface of the transverse part of the bottom of the I-beam rail, thereby preventing the entire electric hoist from falling. Attached Figure Description

[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is a diagram illustrating the use of an electric hoist anti-fall structure according to this utility model;

[0022] Figure 2 This is a structural diagram of an electric hoist anti-fall structure according to the present invention;

[0023] Figure 3 This is an exploded view of an electric hoist anti-fall structure according to the present invention;

[0024] Figure 4 This is an exploded view of some components in an electric hoist anti-fall structure of the present invention.

[0025] Figure 5 This is a partial cross-sectional view of the traveling mechanism in the anti-fall structure of an electric hoist according to this utility model.

[0026] The attached diagram is labeled as follows:

[0027] 101. Electric hoist body; 102. Mounting part; 103. Through hole one; 201. Assembly base; 301. Buckle part; 302. Buckle groove; 303. Through hole two; 304. Connecting rod; 305. Nut; 401. Mounting plate; 402. Buckle part; 403. Through hole three; 404. Wheel axle; 405. Roller; 406. Gear ring; 407. Rotating rod; 408. Gear one; 409. Mounting box; 410. Motor; 411. Drive shaft; 412. Gear two; 413. Gear three; 414. Protective cover; 501. Hook plate; 502. Stabilizing column; 503. Fixing plate; 504. Spring; 505. Fixing head. Detailed Implementation

[0028] like Figures 1-5 As shown, an electric hoist anti-fall structure includes:

[0029] Assembly base 201, the assembly base 201 has an assembly structure in the middle, the assembly structure includes a fastening part 301 and a fastening groove 302. The fastening part 301 is fixedly installed on the bottom surface of the middle part of the assembly base 201. There are two fastening grooves 302, which are respectively provided on the two opposite side walls of the middle part of the assembly base 201. Multiple through holes 303 are provided in the fastening part 301 and the two fastening grooves 302. Electric hoist body 101, the electric hoist body 101 has a mounting bracket on its periphery. The mounting part 102 is provided with multiple through holes 103, each through hole 103 corresponding to a corresponding through hole 303. During assembly, the mounting part 102 on the electric hoist body 101 is fastened into the buckle part 301, and then the connecting rod 304 is passed through each through hole 103 and the corresponding through hole 303. Then, nuts 305 are screwed into both ends of the connecting rod 304, thereby assembling the electric hoist body 101 onto the bottom of the assembly base 201.

[0030] The traveling mechanism includes two mounting plates 401. Each mounting plate 401 has a fastening part 402 on its bottom facing wall. Each fastening part 402 has multiple through holes 403. Each through hole 403 corresponds to a corresponding through hole 303. During assembly, the fastening parts 402 on the two mounting plates 401 are fastened into the corresponding fastening slots 302. Then, a connecting rod 304 is threaded into each through hole 403 and the corresponding through hole 303. Nuts 305 are then screwed into both ends of the connecting rod 304 and made to fit tightly against the side wall of the mounting plate 401, thereby assembling the two mounting plates 401 on opposite sides of the middle of the assembly base 201.

[0031] Two axles 404 are rotatably mounted on the top opposing walls of the two mounting plates 401. Each axle 404 is equipped with a roller 405 and a toothed ring 406. Each roller 405 rests on the top surface of the transverse part of the bottom of the I-beam rail, thereby enabling the electric hoist body 101 to be hung on the I-beam rail.

[0032] Two rotating rods 407 are rotatably mounted between the two mounting plates 401. Each of the two rotating rods 407 has a gear 408 mounted on its rod body below the bottom of the corresponding gear ring 406. Each gear 408 meshes with the corresponding gear ring 406, and the gear 408 and gear ring 406 are located within a protective cover 414. One of the mounting plates 401 has a mounting housing 409 on its side wall. A motor 410 is mounted on the mounting housing 409. A gear 412 is mounted on the drive shaft 411 of the motor 410. A gear 413 is mounted on the ends of the two rotating rods 407 located within the mounting housing 409. 13. Gear 2 412 meshes with two gears 3 413. When the motor 410 starts, it can drive gear 2 412 to rotate. After gear 2 412 meshes with two gears 3 413, it can synchronously drive two rotating rods 407 to rotate. When the two rotating rods 407 rotate, they can drive the corresponding gear 1 408 to rotate synchronously. After each gear 1 408 meshes with the corresponding gear ring 406, it can drive each roller 405 to rotate synchronously. When each roller 405 rotates synchronously, it can drive the assembly base 201 and the electric hoist body 101 to move on the I-beam track.

[0033] The fall protection components consist of four parts, arranged in pairs to form two groups. The two groups of fall protection components are respectively installed at the top ends of the assembly base 201. Each fall protection component includes a hook plate 501. The top and bottom of the hook plate 501 are provided with hooks. The bottom hook of the hook plate 501 is installed at the top end of the assembly base 201 by screws, thereby enabling the assembly of a set of hook plates 501 at each top end of the assembly base 201. The hooks of the two hook plates 501 in the same group are arranged facing each other at intervals. Multiple stabilizing columns 502 are vertically inserted through the top hook of each hook plate 501. The stabilizing columns 502 can move up and down on the top hook of the hook plate 501.

[0034] Each stabilizing post 502 has a fixing plate 503 at its bottom and a fixing head 505 at its top. The fixing head 505 can be removed from the top of the stabilizing post 502, and the diameter of the fixing head 505 is larger than the hole diameter on the hook head at the top of the hook plate 501. The fixing head 505 can prevent the stabilizing post 502 from falling off the hook head at the top of the hook plate 501.

[0035] Each stabilizing column 502 is fitted with a spring 504 on the column body located between the bottom surface of the hook head of the hook plate 501 and the top surface of the fixing plate 503. When each roller 405 rests on the top surface of the transverse part of the bottom of the I-beam rail, so that the electric hoist body 101 is hung on the I-beam rail and can move and run normally, each fixing plate 503 is located above the top surface of the transverse part of the bottom of the I-beam rail, without contacting the top surface of the transverse part of the bottom of the I-beam rail.

[0036] During long-term load operation of the electric hoist, if the roller 405 or axle 404 in the traveling mechanism is damaged, causing the hoist's mounting operation to fail, the entire electric hoist will fall. During this fall, the fixing plate 503 will rest on the top surface of the transverse part of the I-beam rail. Combined with the spring 504, which is elastic, it can provide a certain buffer between the top hook of the hook plate 501 and the top surface of the transverse part of the I-beam rail, achieving soft contact between the top hook of the hook plate 501 and the top surface of the transverse part of the I-beam rail. Due to the combination of the hook plate 501, the stabilizing column 502, the fixing plate 503, and the spring 504, the entire electric hoist can still be mounted on the I-beam rail even if the roller 405 or axle 404 is damaged and the hoist's mounting operation fails, thus preventing the electric hoist from falling and causing a safety accident.

[0037] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A fall prevention structure for an electric hoist, characterized in that: include: Assembly base (201), wherein an assembly structure is provided in the middle of the assembly base (201); The electric hoist body (101) is disposed at the bottom of the assembly base (201) through the assembly structure; The traveling mechanism is set at the top center of the assembly base (201) through the assembly structure, and the traveling mechanism is hooked onto the transverse part of the I-beam rail. The anti-fall components are provided in four groups of two, with each group consisting of two anti-fall components. The two groups of anti-fall components are respectively located at the top ends of the assembly base (201), and the hooks of the two groups of anti-fall components are located above the top surface of the transverse part of the bottom of the I-beam rail under normal operating conditions.

2. The electric hoist anti-fall structure according to claim 1, characterized in that: The assembly structure includes a snap fastener (301) and a snap groove (302). The snap fastener (301) is fixedly disposed on the bottom surface of the middle part of the assembly base (201). There are two snap grooves (302), which are respectively disposed on the opposite side walls of the middle part of the assembly base (201). Multiple through holes (303) are provided in the snap fastener (301) and the two snap grooves (302). A connecting rod (304) is provided in each of the through holes (303), and a nut (305) is screwed into both ends of the connecting rod (304).

3. The electric hoist anti-fall structure according to claim 2, characterized in that: The electric hoist body (101) is provided with an installation part (102) on its periphery. The installation part (102) is provided with a plurality of through holes (103). Each through hole (103) corresponds to a corresponding through hole (303). The installation part (102) is fastened in the fastening part (301). A connecting rod (304) is passed through each through hole (103) and the corresponding through hole (303). Both ends of the connecting rod (304) are threaded with nuts (305).

4. The electric hoist anti-fall structure according to claim 2, characterized in that: The walking mechanism includes two mounting plates (401). Each mounting plate (401) has a fastening part (402) on its bottom facing wall. Each fastening part (402) has a plurality of through holes (403). Each through hole (403) corresponds to a corresponding through hole (303). The fastening parts (402) on the two mounting plates (401) are fastened into the corresponding fastening grooves (302). Each through hole (403) and the corresponding through hole (303) are connected by a connecting rod (304). Both ends of the connecting rod (304) are threaded with nuts (305) and are tightly attached to the side wall of the mounting plate (401). Two axles (404) are rotatably mounted on the top opposing walls of the two mounting plates (401). Each axle (404) is equipped with a roller (405) and a toothed ring (406). Each roller (405) rests on the top surface of the transverse part of the bottom of the I-beam rail. Two rotating rods (407) are rotatably mounted between the two mounting plates (401). Each of the two rotating rods (407) is equipped with a toothed ring (406) on the rod body located below the bottom of the corresponding toothed ring (406). Gear 1 (408), one of the mounting plates (401) has a mounting box (409) on its side wall, a motor (410) is mounted on the mounting box (409), a gear 2 (412) is mounted on the drive shaft (411) of the motor (410), and a gear 3 (413) is mounted on the ends of the two rotating rods (407) located inside the mounting box (409), and the gear 2 (412) meshes with the two gear 3 (413).

5. The electric hoist anti-fall structure according to claim 1, characterized in that: The anti-fall component includes a hook plate (501), with hooks at the top and bottom. The hooks at the bottom of the hook plate (501) are installed on the top end of the assembly base (201) by screws. The hooks of two hook plates (501) in the same group are arranged opposite each other at intervals. Multiple stabilizing columns (502) are vertically inserted through the top hook of each hook plate (501). A fixing plate (503) is provided at the bottom of each stabilizing column (502). A fixing head (505) is clamped at the top of each stabilizing column (502). A spring (504) is sleeved on the column body of each stabilizing column (502) located between the bottom surface of the hook at the top of the hook plate (501) and the top surface of the fixing plate (503). The fixing plate (503) is located above the top surface of the transverse part of the bottom of the I-beam rail under normal operating conditions.

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