A decoupling device

Abstract

The present invention relates to the technical field of lifting equipment, and discloses a decoupling device, the technical solution of which mainly includes a hook, a block assembly, a first baffle and a second baffle, the hook being rotatably connected between the first baffle and the second baffle, the block assembly comprising a limiting portion, a connecting portion and a decoupling portion, the block assembly being rotatably connected between the first baffle and the second baffle via the connecting portion, the position of the decoupling block being higher than the position of the bolt, which can reduce the force required for the operator to pull the decoupling block, and a height difference is created between the two ends of a tension spring, the shape of the tension spring after being fixed on the bolt and the decoupling block is arc-shaped, the diameter of the upper arc of the arc is larger than the diameter of the lower arc, which increases the load-bearing capacity of the tension spring relative to the hook, and the provision of a U-shaped block, a shift rod and a torsion spring increases the operator's one-step action of releasing the hook, so that the operator needs to rotate the connecting block only after rotating the U-shaped block to release the hook, thereby increasing safety.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, and more particularly to a dehooking device. Background Art

[0002] Some existing amusement equipment requires an instant release function to achieve its playability, such as the current high-altitude swing;

[0003] Most high-altitude swings use electromagnetic traction and realize the instantaneous release function through the working principle of power-off release. During the working process, power outages or line problems may occur, and the high-altitude swing will suddenly release before reaching the designated location or a safe position, which will be dangerous. Therefore, a mechanical unhooker is used. The mechanical unhooker needs to be manually unhooked by the operator.

[0004] A general mechanical unhooking device can unhook the hook after the operator performs a one-step operation. The operator may make an error in operation, causing the unhooking device to not unhook at the specified position, which is dangerous to the user. In addition, a general mechanical unhooking device has a small load-bearing capacity. Summary of the invention

[0005] In view of the shortcomings of the prior art, an object of the present invention is to provide a decoupling device for increasing the safety of equipment.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dehooker, comprising a hook, a block assembly, a first baffle plate and a second baffle plate, wherein the hook is rotatably connected between the first baffle plate and the second baffle plate, the block assembly comprises a limiting portion, a connecting portion and a dehooking portion, the block assembly is rotatably connected between the first baffle plate and the second baffle plate through the connecting portion, the limiting portion is used to limit the rotation of the hook, the dehooking portion comprises a dehooking block, a horseshoe buckle is fixedly connected between the first baffle plate and the second baffle plate by bolts, and the position of the dehooking block is higher than the position of the bolts, A tension spring is arranged between the bolt and the unhooking block, and the length of the tension spring is greater than the straight-line distance between the bolt and the unhooking block. A shift rod is rotatably connected between the first baffle plate and the second baffle plate, and a torsion spring is respectively arranged between the shift rods. A U-shaped block is fixedly connected to the shift rod, and the connecting part includes a connecting block. An arc-shaped groove matched with the U-shaped block is opened on the top surface of the connecting block, so that when the shift rod drives the U-shaped block to rotate, the U-shaped block slides with the arc-shaped groove. In a natural state, the U-shaped block is located on a side close to the unhooking block and is located in the arc-shaped groove.

[0007] As a further improvement of the present invention, a positioning portion is provided at the end of the arc groove, and the positioning portion includes a limit groove, the limit groove is connected to the arc groove, the limit groove includes a top arc surface and a bottom arc surface, the bottom arc surface includes a connecting surface and a transition surface, the connecting surface is a plane, and the arc groove includes an upper arc surface and a lower arc surface, the lower arc surface is connected to the connecting surface and is perpendicular to each other.

[0008] As a further improvement of the present invention, the top surface of the connecting block is inclined, the end of the top surface of the connecting block close to the bolt is lower than the end away from the bolt, and the central angle of the arc segment between the bottom end and the end of the arc groove is greater than 45 degrees.

[0009] As a further improvement of the present invention, the limiting portion includes a limiting block, the limiting block, the connecting block and the unhooking block are formed integrally, a groove is provided on the bottom surface of the limiting block, the hook includes a top block and a tail block, and the top block is adapted to the groove.

[0010] As a further improvement of the present invention, the top end of the tail block extends into between the first baffle plate and the second baffle plate.

[0011] As a further improvement of the present invention, a protrusion is provided on the inner side of the top block.

[0012] As a further improvement of the present invention, the protrusion includes an upper end and a lower end, and the arc radius of the upper end is greater than the arc radius of the lower end.

[0013] As a further improvement of the present invention, the difference between the vertical distance from the protrusion to the top of the top block and the depth of the groove ranges from 0 to 5 mm.

[0014] As a further improvement of the present invention, the connecting block is rotatably connected between the first baffle and the second baffle through a first rotating rod, the hook is rotatably connected between the first baffle and the second baffle through a second rotating rod, the two ends of the first rotating rod are respectively rotatably connected to the connecting rods, and the two ends of the second rotating rod are respectively rotatably connected to the connecting rods on the same side.

[0015] As a further improvement of the present invention, a reinforcing rib is provided between the connecting block and the decoupling block.

[0016] The beneficial effects of the present invention are as follows: the position of the unhooking block in the present invention is higher than that of the bolt, which can reduce the force required for the operator to pull the unhooking block, and a height difference exists at both ends of the tension spring. The shape of the tension spring after being fixed on the bolt and the unhooking block is arc-shaped, and the diameter of the upper arc of the arc is larger than the diameter of the lower arc, thereby increasing the load-bearing capacity of the tension spring relative to the hook. The arrangement of the U-shaped block, the shift rod and the torsion spring increases the operator's step of releasing the hook, so that the operator needs to rotate the connecting block only after rotating the U-shaped block to release the hook, thereby increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0019] Figure 3 The present invention Figure 2 A magnified schematic diagram of center A.

[0020] : 1. hook; 101. top block; 102. tail block; 2. block assembly; 21. limiting portion; 211. limiting block; 22. connecting portion; 221. connecting block; 23. unhooking portion; 231. unhooking block; 3. first baffle; 4. second baffle; 5. horseshoe buckle; 6. tension spring; 7. gear lever; 9. U-shaped block; 10. arc groove; 11. positioning portion; 111. limiting groove; 112. connecting surface; 113. transition surface; 12. groove; 13. protrusion; 131. upper end; 132. lower end; 14. first rotating rod; 15. second rotating rod; 16. bolt. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Reference Figures 1 to 3As shown, a decoupling device of this embodiment includes a hook 1, a block assembly 2, a first baffle plate 3 and a second baffle plate 4, the hook 1 is rotatably connected between the first baffle plate 3 and the second baffle plate 4, the block assembly 2 includes a limiting portion 21, a connecting portion 22 and a decoupling portion 23, the block assembly 2 is rotatably connected between the first baffle plate 3 and the second baffle plate 4 through the connecting portion 22, the limiting portion 21 is used to limit the rotation of the hook 1, the decoupling portion 23 includes a decoupling block 231, the first baffle plate 3 and the second baffle plate 4 are fixedly connected with a horseshoe buckle 5 by a bolt 16, the position of the decoupling block 231 is higher than the position of the bolt 16, so that the rotation connection of the connecting block 221 (this rotation connection is the first The distance between the rotational connection between the baffle plate 3 and the second baffle plate 4 and the connecting block 221 and the unhooking block 231 is increased. Through the lever principle, the force required for the operator to pull the unhooking block 231 is reduced. A tension spring 6 is arranged between the bolt 16 and the unhooking block 231, so that there is a height difference between the two ends of the tension spring 6. The length of the tension spring 6 is greater than the straight-line distance between the bolt 16 and the unhooking block 231 to meet the position difference between the unhooking block 231 and the bolt 16, and the shape of the tension spring 6 after being fixed on the bolt 16 and the unhooking block 231 is a tubular arc. The diameter of the upper arc of the tubular arc is greater than the diameter of the lower arc, which increases the load-bearing capacity of the tension spring 6 relative to the hook 1. A shift rod 7 is rotatably connected between the first baffle plate 3 and the second baffle plate 4. The setting of the shift rod 7 limits the rotation angle of the connecting block 221, and a torsion spring is respectively arranged between the shift rod 7. The torsion spring limits the rotation of the shift rod 7 and provides a restoring force for the shift rod 7 after rotation. A U-shaped block 9 is fixedly connected to the shift rod 7. The connecting portion 22 includes a connecting block 221. An arc groove 10 adapted to the U-shaped block 9 is opened on the top surface of the connecting block 221, so that when the shift rod 7 drives the U-shaped block 9 to rotate, the U-shaped block 9 slides with the arc groove 10, and the entrance of the arc groove 10 is located on the side close to the bolt 16. The natural state is the state in which the torsion spring does not generate torque or rotational force, and the U-shaped block 9 is located close to the release One side of the hook block 231 is located in the arc groove 10. One end or both ends of the gear lever 7 can be connected to rope 1, and rope 2 can be connected to the unhooking block 231. In the initial state, the operator directly pulls rope 2. Because the U-shaped block 9 is located in the arc groove 10, and the U-shaped block 9 is against the arc groove 10, the U-shaped block 9 limits the rotation of the connecting block 221, so that the operator cannot pull rope 2, thereby avoiding the danger of the hook 1 being released due to the operator accidentally pulling rope 2 during use. The operator can pull rope 1 to rotate the gear lever 7, thereby causing the U-shaped block 9 to slide out of the arc groove 10, and then pull rope 2 to release the hook 1, thereby increasing safety.

[0023] Reference Figure 2As shown, a positioning portion 11 is provided at the end of the arc groove 10, and the positioning portion 11 includes a limiting groove 111. The limiting groove 111 enables the U-shaped block 9 to be embedded in the limiting groove 111. In a natural state, the U-shaped block 9 is located at the upper part of the limiting groove 111. When the operator directly pulls the rope 2, the connecting block 221 will rotate slightly, so that the U-shaped block 9 is against the bottom arc surface, so that the U-shaped block 9 can limit the rotation of the connecting block 221. The limiting groove 111 is connected to the arc groove 10, and the limiting groove 111 includes a top arc surface and a bottom arc surface. The bottom arc surface includes a connecting surface 112 and a transition surface 113. The connecting surface 112 is a plane. The arc groove 10 includes an upper arc surface and a lower arc surface. The lower arc surface is connected to the connecting surface 112 and is perpendicular to each other, so that the connecting surface 112 blocks one side of the U-shaped block 9.

[0024] Reference Figure 1 As shown, the top surface of the connecting block 221 is inclined. The inclined top surface of the connecting block 221 can increase the straight-line distance between the top surface of the connecting block 221 and the shift rod 7, so as to control the rotation range of the connecting block 221. The end of the top surface of the connecting block 221 close to the bolt 16 is lower than the end away from the bolt 16. The central angle of the arc segment between the bottom end and the end of the arc groove 10 is greater than 45 degrees. The setting greater than 45 degrees can better prevent the U-shaped block 9 from rotating toward the bolt 16 side.

[0025] Reference Figure 2 As shown, the limiting part 21 includes a limiting block 211, the limiting block 211, the connecting block 221 and the unhooking block 231 are formed in one piece, the bottom surface of the limiting block 211 is provided with a groove 12, the groove 12 is used to limit the rotation of the hook 1, the hook 1 includes a top block 101 and a tail block 102, the top block 101 is adapted to the groove 12. The top end of the tail block 102 extends between the first baffle 3 and the second baffle 4, which can prevent the rope hung on the hook 1 from sliding out of the tail block 102, thereby ensuring the safety of the user.

[0026] Reference Figure 2 As shown, a protrusion 13 is provided inside the top block 101. The protrusion 13 prevents the connection block 221 from rotating excessively due to the restoring force of the tension spring 6, so that the hook 1 rotates too much in a natural state, which increases the difficulty of releasing the hook 1 and makes it difficult to hang the lanyard on the hook 1. The protrusion 13 includes an upper end 131 and a lower end 132. The arc radius of the upper end 131 is greater than the arc radius of the lower end 132, which is used to ensure the role played by the protrusion 13. The difference between the vertical distance from the protrusion 13 to the top of the top block 101 and the depth of the groove 12 ranges from 0 to 5 mm, so that when the connection block 221 rotates, the protrusion 13 on the top block 101 can play a role.

[0027] Reference Figure 1 , Figure 2As shown, the connecting block 221 is rotatably connected between the first baffle plate 3 and the second baffle plate 4 through the first rotating rod 14, the hook 1 is rotatably connected between the first baffle plate 3 and the second baffle plate 4 through the second rotating rod 15, the two ends of the first rotating rod 14 are respectively rotatably connected with the connecting rods, and the two ends of the second rotating rod 15 are respectively rotatably connected with the connecting rods on the same side. A connecting rod is arranged between the first rotating rod 14 and the second rotating rod 15, and the connecting rod increases the strength of the first rotating rod 14 and the second rotating rod 15, so that the force borne on the first rotating rod 14 or the second rotating rod 15 can be dispersed, thereby increasing the service life of the first rotating rod 14 and the second rotating rod 15.

[0028] Reference Figure 1 As shown, a reinforcing rib is provided between the connecting block 221 and the decoupling block 231. The reinforcing rib increases the strength between the connecting block 221 and the decoupling block 231, and prevents the connecting block 221 and the decoupling block 231 from breaking.

[0029] Working principle: one end or both ends of the gear lever 7 can be connected to rope 1. The setting of rope 1 requires that when the operator pulls rope 1, the gear lever 7 can be rotated, and rope 2 can be connected to the unhooking block 231. In the initial state, if the operator directly pulls rope 2, because the U-shaped block 9 is located in the arc groove 10, and the U-shaped block 9 is against the arc groove 10, the U-shaped block 9 limits the rotation of the connecting block 221, so that the operator cannot pull rope 2 to rotate the connecting block 221, thereby avoiding the danger of the hook 1 being released due to the operator accidentally pulling rope 2 during use. The operator can pull rope 1 to rotate the gear lever 7, thereby causing the U-shaped block 9 to slide out of the arc groove 10, and then pull rope 2 to release the hook 1.

[0030] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A dehooker, comprising a hook (1), a block assembly (2), a first baffle (3) and a second baffle (4), characterized in that: The hook (1) is rotatably connected between the first baffle plate (3) and the second baffle plate (4); the block assembly (2) comprises a limiting portion (21), a connecting portion (22) and a decoupling portion (23); the block assembly (2) is rotatably connected between the first baffle plate (3) and the second baffle plate (4) via the connecting portion (22); the limiting portion (21) is used to limit the rotation of the hook (1); the decoupling portion (23) comprises a decoupling block (231); the first baffle plate (3) and the second baffle plate (4) are connected to each other. A horseshoe buckle (5) is fixedly connected between the first baffle plate (3) and the second baffle plate (4) by a bolt (16); the position of the unhooking block (231) is higher than the position of the bolt (16); a tension spring (6) is arranged between the bolt (16) and the unhooking block (231); the length of the tension spring (6) is greater than the straight-line distance between the bolt (16) and the unhooking block (231); a shift rod (7) is rotatably connected between the first baffle plate (3) and the second baffle plate (4); and a torsion spring is arranged between the first baffle plate (3) and the second baffle plate (4); the shift rod (7) is fixedly connected to the first baffle plate (3) and the second baffle plate (4); The connecting portion (22) is connected to a U-shaped block (9), the connecting portion (22) includes a connecting block (221), and the top surface of the connecting block (221) is provided with an arc-shaped groove (10) adapted to the U-shaped block (9), so that when the shift lever (7) drives the U-shaped block (9) to rotate, the U-shaped block (9) and the arc-shaped groove (10) slide, and the entrance of the arc-shaped groove (10) is located on a side close to the bolt (16). In a natural state, the U-shaped block (9) is located on a side close to the unhooking block (231) and is located on the arc-shaped groove (10). The arc groove (10) is provided with a positioning portion (11) at the end of the arc groove (10), the positioning portion (11) comprises a limiting groove (111), the limiting groove (111) is connected with the arc groove (10), the limiting groove (111) comprises a top arc surface and a bottom arc surface, the bottom arc surface comprises a connecting surface (112) and a transition surface (113), the connecting surface (112) is a plane, the arc groove (10) comprises an upper arc surface and a lower arc surface, the lower arc surface is connected to the connecting surface (112) and is perpendicular to each other; The top surface of the connecting block (221) is arranged tilted, the end of the top surface of the connecting block (221) close to the bolt (16) is lower than the end away from the bolt (16), and the central angle of the arc segment between the bottom end and the end of the arc groove (10) is greater than 45 degrees.

2. A decoupler according to claim 1, characterized in that: The limiting portion (21) comprises a limiting block (211), the limiting block (211), the connecting block (221) and the unhooking block (231) are formed integrally, a groove (12) is provided on the bottom surface of the limiting block (211), the hook (1) comprises a top block (101) and a tail block (102), and the top block (101) is adapted to the groove (12).

3. A decoupler according to claim 2, characterized in that: The top end of the tail block (102) extends between the first baffle plate (3) and the second baffle plate (4).

4. A decoupler according to claim 2, characterized in that: A protrusion (13) is provided on the inner side of the top block (101).

5. A decoupler according to claim 4, characterized in that: The protrusion (13) comprises an upper end (131) and a lower end (132), and the arc radius of the upper end (131) is greater than the arc radius of the lower end (132).

6. A decoupler according to claim 5, characterized in that: The difference between the vertical distance from the protrusion (13) to the top of the top block (101) and the depth of the groove (12) ranges from 0 to 5 mm.

7. A decoupler according to claim 1, characterized in that: The connecting block (221) is rotatably connected between the first baffle plate (3) and the second baffle plate (4) via a first rotating rod (14); the hook (1) is rotatably connected between the first baffle plate (3) and the second baffle plate (4) via a second rotating rod (15); both ends of the first rotating rod (14) are rotatably connected to connecting rods, and both ends of the second rotating rod (15) are rotatably connected to the connecting rods on the same side.

8. A decoupler according to claim 1, characterized in that: A reinforcing rib is provided between the connecting block (221) and the decoupling block (231).

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