Balancing weight locking mechanism

Abstract

The utility model discloses a balancing weight locking mechanism, which relates to the technical field of locking mechanisms, and comprises a base and a balancing weight body, the top surface of the base is provided with a mounting hole, the inside of the mounting hole is rotatably connected with a limiting rod A, and the top surface of the limiting rod A is rotatably connected with a rotating block A. In the utility model, the top surface of the rotating block A is rotatably connected with the balancing weight body. Through the design of a spring, a limiting rod B and a limiting block, the limiting block and a limiting plate slide on the surface of the base, so that balancing weight bodies with different widths are limited and clamped, and the adaptability of the balancing weight locking mechanism is improved; through the threaded connection type design of a limiting rod A and a mounting hole, when the balancing weight body is disassembled, the balancing weight body can be disassembled after the limiting rod A is rotated out of the mounting hole, and through the design of a torsional spring, the effect that a limiting plate is driven to rotate after a limiting rod C is pulled out of a limiting plate is achieved; and therefore, the effect of conveniently disassembling the balancing weight body by a worker is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking mechanism technical field especially relates to a counterweight locking mechanism. BACKGROUND

[0002] The counterweight locking mechanism is a mechanical device for fixing and locking counterweights, commonly used in equipment that requires adjustment of counterweights, such as cranes, excavators, elevators, lifting platforms, and other heavy machinery equipment. Counterweights are components used to balance equipment or provide additional weight to improve stability, and the function of the counterweight locking mechanism is to ensure that these counterweights do not loosen or shift during operation, ensuring the safety and normal operation of the equipment.

[0003] In the prior art, for example, Chinese patent CN216638596U discloses a counterweight locking and fixing structure for elevators, which includes an operating table and a counterweight iron. The operating table is provided with a support on the sliding surface, which is used to place the counterweight iron. A stabilizing piece is fixed on the support, which is used to lock the counterweight. A locking piece is rotatably arranged on the stabilizing piece. The counterweight includes a counterweight iron body, and symmetrically distributed connecting blocks are fixed at both ends of the counterweight iron body. Limiting holes are arranged on the connecting blocks. The fixing structure stacks the counterweight iron body on the support plate, and the clamping column limits it to ensure that the limiting shaft and the limiting hole are stacked in alignment. The structure is simple. By screwing the compression shaft and the limiting shaft, the lock catch and the locking latch cooperate to lock and fix the counterweight, which can improve work efficiency and improve the stability of locking.

[0004] Although this locking mechanism has the effect of improving work efficiency and improving the stability of locking by screwing the compression shaft and the limiting shaft, and the lock catch and the locking latch cooperate to lock and fix the counterweight, it lacks in terms of disassembling the counterweight. Since this locking mechanism does not have a structure for quickly disassembling the counterweight, it will require multiple workers to cooperate or use auxiliary tools to lift the counterweight to a position higher than the top of the clamping column before the counterweight can be removed. This disassembly method not only makes it inconvenient for workers to disassemble and replace the counterweight, but also increases the cost of labor input, and reduces the efficiency of disassembling and replacing the counterweight. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the problem of the prior art that the counterweight locking mechanism does not have a structure for quickly disassembling the counterweight, which requires multiple workers to cooperate or use auxiliary tools to lift the counterweight to a position higher than the top of the clamping column before the counterweight can be removed when replacing the counterweight. A counterweight locking mechanism is proposed.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a counterweight locking mechanism, including base and counterweight body, the top surface of base is seted up with mounting hole, the inside rotation of mounting hole is connected with limit rod A, the top surface of limit rod A is connected with rotating block A, the inside fixed mounting of base is with limit rod B, the surface of limit rod B is equipped with spring, the inside sliding connection of base is with limit block, the inside rotation of limit block is connected with rotating rod, the surface of rotating rod is equipped with torsional spring, one end of rotating rod is fixedly installed with limit plate, the surface of limit plate is seted up with positioning hole, the inside of limit plate is inserted with limit rod C, one end of limit rod C is fixedly installed with fixed plate, the surface of limit plate is rotatably connected with rotating block B.

[0007] Preferably, the limit rod A and the fixed hole are connected through threads, and the rotating block A and the limit rod A are connected through threads.

[0008] Preferably, the counterweight body and the limit rod A are connected through sliding, the limit block and the limit rod B are connected through sliding, the rotating block B and the limit rod C are connected through threads, and the limit rod C and the positioning hole are connected through sliding.

[0009] Preferably, one end of the spring A is connected to the inner surface of the base, and the other end is connected to the surface of the limit block, one end of the torsional spring is connected to the inner surface of the limit block, and the other end is connected to the side surface of the limit plate.

[0010] Preferably, the number of limit plates and limit blocks is four, and the four limit blocks and limit plates are evenly distributed around the base.

[0011] Preferably, the surface of the limit plate is seted up with a slot, the inside of the slot is inserted with a plug, the surface of the plug is fixedly installed with a soft pad, the surface of the plug is seted up with a fixed hole, and the inside of the limit plate is inserted with a plug strip.

[0012] Preferably, the plug and the slot are connected through sliding, the material of the soft pad is natural rubber, and the plug strip and the fixed hole are connected through threads.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1. The utility model discloses a spring, limiting rod B and the design of limiting block play the limiting block and limiting plate on the surface of base slide, thereby to the different width size of counterweight block body carries out the limiting clamping, thereby improved the adaptability of counterweight block locking mechanism, and through the threaded connection design of limiting rod A and mounting hole plays the effect that when disassembling counterweight block body, limiting rod A is transferred from the mounting hole, and the design of torsion spring plays the effect that drives limiting plate rotation after limiting rod C is extracted from limiting plate, thereby plays the effect that the staff is convenient to the disassembly of counterweight block body.

[0015] 2. The utility model discloses a soft pad natural rubber material design play the effect that increase the friction between counterweight block body and limiting plate also play the effect that prevent the collision between limiting plate and counterweight block body and cause its damage, and the design of plug bar and plugboard plays the effect that convenient to the disassembly replacement of soft pad. ACCURACY OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the counterweight block locking mechanism is provided for the utility model;

[0017] Figure 2 An explosion structure schematic diagram of the counterweight block body, limiting rod A and limiting plate in the counterweight block locking mechanism is provided for the utility model;

[0018] Figure 3 An enlarged view of the A place in the counterweight block locking mechanism is provided for the utility model; Figure 2

[0019] Figure 4 An explosion structure schematic diagram of the plugboard and soft pad in the counterweight block locking mechanism is provided for the utility model;

[0020] Figure 5 An enlarged view of the B place in the counterweight block locking mechanism is provided for the utility model. Figure 4

[0021] Legend: 1, base; 2, mounting hole; 3, limiting rod A; 4, rotating block A; 5, counterweight block body; 6, limiting rod B; 7, spring; 8, limiting block; 9, rotating rod; 10, torsion spring; 11, limiting plate; 12, limiting rod C; 13, fixed plate; 14, rotating block B; 15, positioning hole; 16, plug groove; 17, plugboard; 18, soft pad; 19, fixed hole; 20, plug bar. DETAILED DESCRIPTION

[0022] ​​In order to enable the above-mentioned purpose, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be practiced in different ways from those described herein, and therefore, the present application is not limited to the specific embodiments disclosed in the following description. Embodiment

[0024] As Figures 1-5 shown, the utility model provides a counterweight locking mechanism, including base 1 and counterweight body 5, the top surface of base 1 is provided with mounting hole 2, the inside of mounting hole 2 is rotatably connected with limiting rod A 3, the top surface of limiting rod A 3 is rotatably connected with rotating block A 4, the inside of base 1 is fixedly installed with limiting rod B 6, the surface of limiting rod B 6 is equipped with spring 7, the inside of base 1 is slidably connected with limiting block 8, the inside of limiting block 8 is rotatably connected with rotating rod 9, the surface of rotating rod 9 is equipped with torsion spring 10, one end of rotating rod 9 is fixedly installed with limiting plate 11, the surface of limiting plate 11 is provided with locating hole 15, the inside of limiting plate 11 is inserted with limiting rod C 12, one end of limiting rod C 12 is fixedly installed with fixed plate 13, the surface of limiting plate 11 is rotatably connected with rotating block B 14, limiting rod A 3 and fixed hole 19 are connected through screw thread, rotating block A 4 and limiting rod A 3 are connected through screw thread, counterweight body 5 and limiting rod A 3 are slidably connected, limiting block 8 and limiting rod B 6 are slidably connected, rotating block B 14 and limiting rod C 12 are connected through screw thread, limiting rod C 12 and locating hole 15 are slidably connected, one end of spring 7A is connected to the inner surface of base 1, the other end is connected to the surface of limiting block 8, one end of torsion spring 10 is connected to the inner surface of limiting block 8, the other end is connected to the side of limiting plate 11, the number of limiting plate 11 and limiting block 8 is four groups, four groups of limiting block 8 and limiting plate 11 are evenly distributed around base 1.

[0025] In the embodiment: the movement of limiting block 8 and limiting plate 11 is driven by spring 7, thereby completing the clamping and limiting of counterweight body 5, and torsion spring 10 will drive limiting plate 11 to rotate after limiting rod C 12 is extracted from limiting plate 11, thereby facilitating the disassembly and installation of counterweight body 5 by workers, and by rotating limiting rod A 3, limiting rod A 3 can be extracted from the inside of base 1 and counterweight body 5 after limiting rod A 3 is rotated out of mounting hole 2, at this time, when disassembling counterweight body 5, it is not necessary to lift the counterweight to the top end of limiting rod A 3 to complete the disassembly. Embodiment

[0026] AsFigures 1-5 As shown, the surface of the limiting plate 11 is provided with a slot 16, the inside of the slot 16 is provided with an insertion plate 17, the surface of the insertion plate 17 is fixedly provided with a soft pad 18, the surface of the insertion plate 17 is provided with a fixing hole 19, the inside of the limiting plate 11 is provided with an insertion strip 20, the insertion plate 17 and the slot 16 are slidingly connected, the material of the soft pad 18 is natural rubber, and the insertion strip 20 and the fixing hole 19 are connected through threads.

[0027] In the embodiment, when the insertion strip 20 is turned out of the fixing hole 19, the insertion strip 20 can be pulled out of the limiting plate 11, at this time, the insertion plate 17 and the soft pad 18 can be pulled out of the slot 16, then the insertion plate 17 with a new soft pad 18 is inserted into the slot 16, at this time, the insertion strip 20 is connected with the fixing hole 19 through threads, and the replacement of the soft pad 18 is completed after the insertion strip 20 is connected, the natural rubber material of the soft pad 18 increases the friction between the counterweight block body 5 and the limiting plate 11, and prevents the damage of the limiting plate 11 and the counterweight block body 5 caused by the collision between the limiting plate 11 and the counterweight block body 5, and the design of the insertion strip 20 and the insertion plate 17 facilitates the disassembly and replacement of the soft pad 18.

[0028] The working principle and the use method of the device are as follows: when the counterweight block body 5 needs to be disassembled, the rotating block B14 is first rotated, the limiting rod C12 can be pulled out of the limiting plate 11 through the fixed plate 13 after the rotating block B14 is turned out of the surface of the limiting rod C12, the limiting plate 11 is rotated under the action of the torsion of the torsion spring 10 after the limiting rod C12 is pulled out, the limiting rod A3 is rotated after the limiting plate 11 is turned open, the limiting rod A3 can be pulled out of the inside of the counterweight block body 5 after the limiting rod A3 is turned out of the inside of the mounting hole 2, and the counterweight block can be disassembled at this time.

[0029] When the soft pad 18 needs to be replaced, the insertion strip 20 is only needed to be rotated, the insertion strip 20 can be pulled out of the limiting plate 11 after the insertion strip 20 is turned out of the fixing hole 19, at this time, the insertion plate 17 and the soft pad 18 can be pulled out of the slot 16, then the insertion plate 17 with a new soft pad 18 is inserted into the slot 16, at this time, the insertion strip 20 is connected with the fixing hole 19 through threads, and the replacement of the soft pad 18 is completed after the insertion strip 20 is connected.

[0030] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms, any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A counterweight locking mechanism comprising a base (1) and a counterweight body (5), characterized in that: The top surface of the base (1) is provided with a mounting hole (2), the inside of the mounting hole (2) is rotatably connected with a limiting rod A (3), the top surface of the limiting rod A (3) is rotatably connected with a rotating block A (4), the inside of the base (1) is fixedly installed with a limiting rod B (6), the surface of the limiting rod B (6) is sleeved with a spring (7), the inside of the base (1) is slidably connected with a limiting block (8), the inside of the limiting block (8) is rotatably connected with a rotating rod (9), the surface of the rotating rod (9) is sleeved with a torsional spring (10), one end of the rotating rod (9) is fixedly installed with a limiting plate (11), the surface of the limiting plate (11) is provided with a positioning hole (15), the inside of the limiting plate (11) is inserted with a limiting rod C (12), one end of the limiting rod C (12) is fixedly installed with a fixed plate (13), the surface of the limiting plate (11) is rotatably connected with a rotating block B (14).

2. A counterweight locking mechanism according to claim 1, characterized in that: The limiting rod A (3) and the fixed hole (19) are connected through threads, and the rotating block A (4) and the limiting rod A (3) are connected through threads.

3. A counterweight locking mechanism according to claim 1, wherein: The counterweight block body (5) and the limiting rod A (3) are slidably connected, the limiting block (8) and the limiting rod B (6) are slidably connected, the rotating block B (14) and the limiting rod C (12) are connected through threads, and the limiting rod C (12) and the positioning hole (15) are slidably connected.

4. The counterweight locking mechanism of claim 1, wherein: One end of the spring (7) A is connected to the inner surface of the base (1), and the other end is connected to the surface of the limiting block (8), one end of the torsional spring (10) is connected to the inner surface of the limiting block (8), and the other end is connected to the side surface of the limiting plate (11).

5. A counterweight locking mechanism according to claim 1, wherein: The limiting plate (11) and the limiting block (8) are four groups, and the four groups of limiting blocks (8) and limiting plates (11) are evenly distributed around the base (1).

6. A counterweight locking mechanism according to claim 1, wherein: The surface of the limiting plate (11) is provided with a slot (16), the inside of the slot (16) is inserted with a plug plate (17), the surface of the plug plate (17) is fixedly installed with a soft pad (18), the surface of the plug plate (17) is provided with a fixed hole (19), and the inside of the limiting plate (11) is inserted with a plug strip (20).

7. A counterweight locking mechanism according to claim 6, wherein: The plug plate (17) and the slot (16) are slidably connected, the material of the soft pad (18) is natural rubber, and the plug strip (20) and the fixed hole (19) are connected through threads.

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