Anti-falling mechanism of elevator

Abstract

The utility model discloses an elevator anti-falling mechanism which comprises fixing plates, a guide rail fixedly connected between the two fixing plates, a lifting mechanism in contact with the guide rail, a supporting plate fixedly connected with one side of the lifting mechanism, supporting columns in contact with the two sides of the supporting plate, clamping grooves formed in the supporting columns, and arc-shaped strips evenly and fixedly connected to the positions, located in the clamping grooves, of the supporting columns. Connecting strips are fixedly connected to the two sides of the upper end of the supporting plate, clamping plates are fixedly connected to the connecting strips, spring rods are inserted into the clamping plates, connecting blocks are fixedly connected to one sides of the moving ends of the spring rods, the connecting blocks are rotationally connected with auxiliary rods, and the auxiliary rods make contact with the arc-shaped strips. The clamping grooves are formed in the supporting columns, the arc-shaped strips are evenly arranged in the clamping grooves to limit the connecting blocks and the auxiliary strips, limiting can be conducted through the inner side faces of the arc-shaped strips when falling occurs, and therefore the anti-falling effect of the elevator is achieved, and the problem that an air cylinder needs to be maintained frequently when being stressed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoists, in particular to an anti-falling mechanism for hoists. Background Art

[0002] An elevator is a large mechanical device that transports materials by changing potential energy. It usually drives the hopper to move up and down vertically or obliquely through the movement of the conveyor sprocket and chain, thereby lifting the collected materials vertically or obliquely. In the event of a mechanical failure or human operating error, the elevator may fall. The anti-falling of the bracket that carries the materials is mainly achieved by cylinders and push rods.

[0003] According to the "A vertical hoist anti-fall mechanism" with Chinese patent publication number CN219341631U, it mainly describes the support through the load frame. When the hoist drives the hoist load support to move upward, the hoist load support drives the goods to move upward through the load frame. When the hoist load support moves upward, the anti-fall component on the anti-fall device is always in contact with the anti-fall rack by its own weight. Once the hoist load support falls, the anti-fall device and the anti-fall rack are automatically locked, thereby achieving the anti-fall effect of the hoist load support. This structure has the advantages of simple structure and reduced use of sensors, and improves the anti-fall reliability of the hoist load support during the vertical lifting process. During this process, when the hoist falls, pressure will be generated at the cylinder, which will cause damage to the cylinder in the long run and require frequent maintenance, which is more troublesome.

[0004] Therefore, an anti-fall mechanism for a hoist is proposed to solve the problem that when the hoist falls during the process, pressure is generated at the cylinder, which may cause damage to the cylinder in the long run and require frequent maintenance, which is quite troublesome. Utility Model Content

[0005] The technical problem to be solved by the utility model is as follows: during this process, when the hoist falls, pressure will be generated at the cylinder, which will cause damage to the cylinder in the long run and require frequent maintenance, which is a rather troublesome problem. Therefore, an anti-fall mechanism for the hoist is proposed.

[0006] The technical solution adopted by the utility model to solve the technical problem is: an anti-fall mechanism of a hoist, comprising a fixed plate, a guide rail fixedly connected between the two fixed plates, a lifting mechanism in contact with the guide rail, a support plate fixedly connected to one side of the lifting mechanism, support columns in contact with both sides of the support plate, a card slot is provided on the support column, the support column is located in the card slot and is evenly fixedly connected with an arc-shaped bar, both sides of the upper end of the support plate are fixedly connected with a connecting bar, a card plate is fixedly connected to the connecting bar, spring rods are inserted on the card plates, a connecting block is fixedly connected to one side of the moving end of the spring rod, the connecting block is rotatably connected to an auxiliary rod, and the auxiliary rod is in contact with the arc-shaped bar.

[0007] As a preferred technical solution of the utility model, a support ball is rotatably embedded on the card plate, and the support ball is in contact with the support column. By providing the support ball, friction can be reduced.

[0008] As a preferred technical solution of the utility model, the support column is located in the card slot and is fixedly connected with a guide bar, and the guide bar corresponds to the auxiliary rod. By setting the guide bar, an anti-falling effect can be conveniently provided.

[0009] As a preferred technical solution of the utility model, the support column is fixedly connected with a guide bar in the card slot, and the cross-section of the guide bar is a trapezoidal structure. By providing the guide bar, the auxiliary bar can be pulled downward.

[0010] As a preferred technical solution of the utility model, a triangular block is fixedly connected to one side of the bottom end of the support plate, a spherical ball is rotatably embedded in the triangular block and the spherical ball contacts the support column. By setting the triangular block, support can be provided on the bottom side of the support plate.

[0011] The utility model has the following advantages: by opening a slot in the support column and evenly arranging arc strips in the slot to limit the connecting block and the auxiliary strip, the inner side of the arc strip can be used to limit the position when falling occurs, thereby achieving the anti-fall effect of the hoist and solving the problem that the cylinder needs frequent maintenance due to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a hoist anti-falling mechanism of a preferred embodiment of the utility model;

[0013] Figure 2 It is a side cross-sectional structural schematic diagram of a hoist anti-falling mechanism of a preferred embodiment of the utility model;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of a connection strip of a hoist anti-falling mechanism according to a preferred embodiment of the utility model.

[0015] Explanation of the accompanying drawings: 1. fixed plate; 2. guide rail; 3. lifting mechanism; 4. support plate; 5. support column; 6. slot; 7. arc strip; 8. connecting strip; 9. clamping plate; 10. spring rod; 11. connecting block; 12. guide strip; 13. support ball; 14. auxiliary rod; 15. triangular block; 16. guide strip. DETAILED DESCRIPTION

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Please refer to Figure 1-3 The anti-fall mechanism of the hoist shown in the figure comprises a fixed plate 1, a guide rail 2 is fixedly connected between the two fixed plates 1, a lifting mechanism 3 is contacted on the guide rail 2, the lifting mechanism 3 comprises a motor and a roller, the roller contacts the guide rail 2, the motor drives the roller to rotate and makes the support plate 4 move on the guide rail 2, a support plate 4 is fixedly connected to one side of the lifting mechanism 3, support columns 5 are contacted on both sides of the support plate 4, a slot 6 is provided on the support column 5, the support column 5 is evenly fixedly connected with an arc strip 7 in the slot 6, and a connecting strip 8 is fixedly connected to both sides of the upper end of the support plate 4. There is a card plate 9, and spring rods 10 are inserted on the card plates 9. A connecting block 11 is fixedly connected to one side of the moving end of the spring rod 10. The connecting block 11 is rotatably connected to an auxiliary rod 14. The auxiliary rod 14 contacts the arc strip 7. The upward movement of the support plate 4 will cause the connecting strip 8 and the card plate 9 to move upward. At this time, the connecting block 11 and the auxiliary rod 14 move upward. When moving upward, the auxiliary rod 14 contacts the bottom side of the arc strip 7, which will cause the spring rod 10 to stretch, so that the support plate 4 can move upward without obstruction. When the support plate 4 falls, the auxiliary rod 14 is stuck on the upper side of the arc strip 7, thereby providing the support plate 4 with anti-falling protection.

[0018] The support column 5 is in contact with the support ball 13 , and the support ball 13 is rotatably embedded in the clamping plate 9 . The friction between the support column 5 and the support plate 4 is reduced by providing the support ball 13 .

[0019] The auxiliary rod 14 corresponds to the guide bar 16 , and the guide bar 16 is fixedly connected in the slot 6 of the support column 5 . By providing the guide bar 16 , the auxiliary rod 14 can be pulled so that the auxiliary rod 14 enters the side of the guide bar 12 .

[0020] The guide bar 12 is fixedly connected in the slot 6 of the support column 5 , and the cross-section of the guide bar 12 is a trapezoidal structure, which can facilitate the lowering of the support plate 4 .

[0021] Among them, the support column 5 is in contact with the sphere, and the sphere rotates and is embedded in the triangular block 15. The triangular block 15 is fixedly connected to one side of the bottom end of the support plate 4. By setting the triangular block 15 to provide support on the bottom side of the support plate 4, the stability of the movement of the support plate 4 is improved.

[0022] Working principle: Place the material on the support plate 4, start the lifting mechanism 3 to move the support plate 4 upward, at this time the connecting bar 8 contacts the support column 5 and moves upward, the auxiliary rod 14 moves upward under the action of the arc bar 7, and the spring rod 10 blocked by the bottom side of the arc bar 7 extends, the auxiliary rod 14 rolls upward, and when the support plate 4 moves to the clamping plate 9 and contacts the upper fixed plate 1, the auxiliary rod 14 is guided by the guide bar 16, and at this time the auxiliary rod 14 enters the side of the guide bar 12 and moves downward steadily.

[0023] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0024] Other parts of the present invention not described in detail belong to the prior art and will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hoist anti-fall mechanism, comprising a fixed plate (1), a guide rail (2) fixedly connected between two of the fixed plates (1), a hoisting mechanism (3) in contact with the guide rail (2), characterized in that: A support plate (4) is fixedly connected to one side of the lifting mechanism (3), and support columns (5) are in contact with both sides of the support plate (4). A clamping groove (6) is provided on the support column (5), and the support column (5) is evenly fixedly connected with an arc-shaped strip (7) in the clamping groove (6). Connecting strips (8) are fixedly connected to both sides of the upper end of the support plate (4), and a clamping plate (9) is fixedly connected to the connecting strip (8). A spring rod (10) is inserted into the clamping plate (9), and a connecting block (11) is fixedly connected to one side of the movable end of the spring rod (10), and the connecting block (11) is rotatably connected to an auxiliary rod (14), and the auxiliary rod (14) is in contact with the arc-shaped strip (7).

2. A hoist anti-falling mechanism according to claim 1, characterized in that: A supporting ball (13) is rotatably embedded on the clamping plate (9), and the supporting ball (13) is in contact with the supporting column (5).

3. A hoist anti-falling mechanism as claimed in claim 2, characterized in that: The support column (5) is located in the clamping groove (6) and is fixedly connected to a guide bar (16), and the guide bar (16) corresponds to the auxiliary rod (14).

4. A hoist anti-falling mechanism as claimed in claim 3, characterized in that: The support column (5) is located in the clamping groove (6) and is fixedly connected to a guide bar (12), and the cross-section of the guide bar (12) is a trapezoidal structure.

5. The anti-falling mechanism for a hoist according to claim 1, characterized in that: A triangular block (15) is fixedly connected to one side of the bottom end of the support plate (4), and a spherical ball is rotatably embedded in the triangular block (15) and is in contact with the support column (5).

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