Split type double-lug torsional spring

Abstract

The utility model belongs to the technical field of double-lug torsion springs, and particularly relates to a split type double-lug torsion spring which comprises torsion springs, limiting rods and blocking rods, a first limiting block and a second limiting block are installed on the surfaces of the blocking rods, and the ends of the blocking rods of the two torsion springs are connected with a first butt joint block and a second butt joint block. The bolt and the nut are separated through a tool, then the first butt joint block and the second butt joint block can be separated, and then the two torsion springs can be separated. Due to the split design, under the condition that the installation space is narrow, a user can flexibly split the torsion spring into parts which are easier to operate, place the parts into installation positions one by one and then assemble the torsion spring. Compared with a traditional integrated double-lug torsion spring, the installation difficulty is greatly reduced, the installation problem caused by the fact that the size is fixed and the torsion spring cannot be separated is effectively solved, the accuracy and stability of installation of the torsion spring are ensured, and therefore the adverse effect on the performance of the torsion spring and equipment operation due to improper installation is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of double-eared torsion springs, specifically relating to a detachable double-eared torsion spring. Background Technology

[0002] Double-eared torsion springs are common mechanical components with wide applications in numerous fields. Their basic structure consists of an ear-like structure extending from each end of a helical spring. These two ears are crucial components, responsible for connecting other parts and transmitting torsional force. When an external torque is applied, the torsion spring experiences force through the ears, causing the helical portion to undergo torsional deformation. During this process, the spring converts external mechanical energy into elastic potential energy and stores it. Once the external force is removed, the torsion spring returns to its original shape using the stored elastic potential energy, releasing energy to push the connected components to reset or complete a specific action.

[0003] However, in practical applications, double-eared torsion springs often face thorny installation challenges. Traditional double-eared torsion springs, due to their fixed dimensions and inability to be separated, present significant assembly difficulties when the space required for installation is smaller than the spring itself. Limited space makes it difficult for workers to smoothly place the spring in the designated position, let alone precisely adjust the angle to achieve a stable connection with surrounding components. This assembly obstacle not only consumes considerable manpower and time but can also cause deformation of the spring's ear structure and damage to the spring wires due to forced installation, directly affecting its elastic performance and service life. Even if installation is barely completed, improperly installed torsion springs are prone to instability during subsequent use. For example, during equipment operation, uneven force may cause deviations in the torsion angle, preventing accurate transmission of torsional force and affecting the overall accuracy and reliability of the equipment. Prolonged exposure to this abnormal stress state also accelerates spring wear, leading to premature fatigue failure. Frequent spring replacements undoubtedly increase equipment maintenance costs, reduce production efficiency, and have numerous negative impacts on production operations. Utility Model Content

[0004] The purpose of this invention is to provide a detachable double-eared torsion spring, which aims to solve the problem that existing double-eared torsion springs cannot be detached, resulting in fixed dimensions and thus easily affecting installation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable double-eared torsion spring, comprising a torsion spring, a limiting rod, and a blocking rod. The limiting rod is integrally connected to both ends of the torsion spring. The torsion springs are symmetrically arranged, and the two torsion springs are detachably connected via the blocking rod. A first limiting block and a second limiting block are mounted on the surface of the blocking rod. A first mating block and a second mating block are connected to the ends of the blocking rods of the two torsion springs. A groove is formed on the surface of the first mating block, and a nut is installed inside the bottom surface of the second mating block. A bolt is installed inside the groove.

[0006] As a preferred embodiment of the detachable double-eared torsion spring of this utility model, the first limiting block and the second limiting block are of the same size.

[0007] As a preferred embodiment of the detachable double-ear torsion spring of this utility model, the first docking block and the second docking block are of the same size.

[0008] As a preferred embodiment of the detachable double-eared torsion spring of this utility model, the first connecting block is detachably and fixedly connected to the second connecting block by bolts and nuts.

[0009] As a preferred embodiment of the detachable double-ear torsion spring of this utility model, a rubber pad is sleeved on the surface of the limiting rod, and the rubber pad is made of food-grade rubber.

[0010] As a preferred embodiment of the detachable double-eared torsion spring of this utility model, the surface of the rubber pad is connected to three screws that are evenly distributed longitudinally.

[0011] As a preferred embodiment of the detachable double-eared torsion spring of this utility model, the rubber pad is detachably fixedly connected to the limiting rod by screws.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This invention allows for the separation of the bolt and nut using a tool. Subsequently, the first and second mating blocks can be separated, enabling the separation of the two torsion springs. This detachable design allows users to flexibly disassemble the torsion spring into more easily operable parts when facing limited installation space, placing them one by one into the installation position before reassembly. Compared to traditional one-piece double-ear torsion springs, this significantly reduces installation difficulty, effectively avoiding installation problems caused by fixed dimensions and inability to be separated, ensuring the accuracy and stability of the torsion spring installation, thereby reducing adverse effects on torsion spring performance and equipment operation caused by improper installation. Furthermore, the use of rubber pads protects the limit rod from wear, thus improving the durability of the double-ear torsion spring. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional bottom-view structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the connection structure between the first and second docking blocks of this utility model;

[0018] Figure 4 This is a schematic diagram of the rubber pad connection structure of this utility model.

[0019] In the diagram: 1. Torsion spring; 2. Limiting rod; 3. Blocking rod; 4. First limiting block; 5. Second limiting block; 6. First mating block; 7. Second mating block; 8. Groove; 9. Nut; 10. Bolt; 11. Rubber pad; 12. Screw. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0021] Please see Figures 1-4 The present invention provides the following technical solution: a detachable double-ear torsion spring, comprising a torsion spring 1, a limiting rod 2 and a blocking rod 3. The limiting rod 2 is integrally connected to both ends of the torsion spring 1. The torsion springs 1 are symmetrically arranged. The two torsion springs 1 are detachably connected by the blocking rod 3. A first limiting block 4 and a second limiting block 5 are installed on the surface of the blocking rod 3. A first connecting block 6 and a second connecting block 7 are connected to the ends of the blocking rod 3 of the two torsion springs 1. A groove 8 is opened on the surface of the first connecting block 6. A nut 9 is installed inside the bottom surface of the second connecting block 7. A bolt 10 is installed inside the groove 8.

[0022] In a preferred embodiment, the first limiting block 4 and the second limiting block 5 have the same dimensions.

[0023] In a preferred embodiment, the first docking block 6 and the second docking block 7 have the same dimensions.

[0024] In a preferred embodiment, the first mating block 6 is detachably and fixedly connected to the second mating block 7 by bolts 10 and nuts 9.

[0025] In this embodiment, the double-eared torsion spring, a well-established prior art, is characterized by ear-shaped structures extending from both ends of a helical spring. These two ears are crucial, serving the important functions of connecting other components and transmitting torsional force. When an external torque is applied, the ears of the torsion spring are stressed first, driving the helical portion to undergo torsional deformation. During this process, the spring converts the externally input mechanical energy into elastic potential energy and stores it. Once the external force disappears, the torsion spring returns to its initial state using the stored elastic potential energy, releasing energy to push the connected components to reset or to complete a specific action.

[0026] Installation is also quite simple for users. They only need to manually remove the bolt 10 from the nut 9 using a tool, allowing the first mating block 6 and the second mating block 7 to separate, thus separating the two torsion springs 1. This innovative detachable design offers significant advantages in complex scenarios with limited installation space. Users can easily disassemble the torsion spring into easily operable parts, place them in the installation position, and then reassemble them. Compared to traditional one-piece double-ear torsion springs, it greatly reduces installation difficulty, effectively avoiding installation difficulties caused by fixed dimensions and the inability to separate parts. This strongly ensures the accuracy and stability of the torsion spring installation, reducing the negative effects on torsion spring performance and equipment operation caused by improper installation.

[0027] It is worth noting that the disassembly and assembly of bolt 10 and nut 9 involves separating the first mating block 6 and the second mating block 7. Therefore, protection is needed between bolt 10 and nut 9 to prevent dust from entering the connection between bolt 10 and nut 9 at the installation location of the double-eared torsion spring, which would affect the disassembly and assembly of bolt 10 and nut 9. Example

[0028] Please see Figures 1-4 The surface of the limiting rod 2 is fitted with a rubber pad 11, which is made of food-grade rubber.

[0029] In a preferred embodiment: the surface of the rubber pad 11 is connected to three screws 12 that are distributed longitudinally at equal intervals.

[0030] In a preferred embodiment, the rubber pad 11 is detachably and fixedly connected to the limiting rod 2 by the screw 12.

[0031] In this embodiment, as described in Embodiment 1, after the double-eared torsion spring is installed, the rubber pad 11 is manually and tightly fitted onto the limiting rod 2. Then, the screw 12 is removed for fixing, ensuring it passes precisely through the rubber pad 11 and connects to the limiting rod 2. As the screw 12 is tightened, its protruding portion compresses the rubber pad 11, thereby ensuring its secure fixation and preventing displacement or detachment during subsequent use. Simultaneously, the rubber pad 11 protects the limiting rod 2 from wear, thus improving the durability of the double-eared torsion spring.

[0032] It is worth noting that the use of screw 12 not only makes it easy to fix the rubber pad 11, but also makes it easy to disassemble and fix it if the rubber pad 11 is damaged.

[0033] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A split type double ear torsion spring comprising a torsion spring (1), a limiting rod (2) and a blocking rod (3), characterized in that: The limiting rod (2) is integrally connected at both ends of the torsion spring (1), the torsion spring (1) is symmetrically arranged, the two torsion springs (1) are detachably connected through the blocking rod (3), and the surface of the blocking rod (3) is provided with a first limiting block (4) and a second limiting block (5); The end of the blocking rod (3) of the two torsion springs (1) is connected with a first butt joint block (6) and a second butt joint block (7), the surface of the first butt joint block (6) is provided with a groove (8), the bottom surface of the second butt joint block (7) is internally provided with a nut (9), and the inside of the groove (8) is internally provided with a bolt (10).

2. The separable binaural torsion spring of claim 1, wherein: The first limiting block (4) and the second limiting block (5) are the same size.

3. The separable binaural torsion spring of claim 1, wherein: The first butt joint block (6) and the second butt joint block (7) are the same size.

4. The separable binaural torsion spring of claim 1, wherein: The first butt joint block (6) and the second butt joint block (7) are detachably connected through the bolt (10) and the nut (9).

5. The separable binaural torsion spring of claim 1, wherein: The surface of the limiting rod (2) is sleeved with a rubber pad (11), and the rubber pad (11) is made of food-grade rubber material.

6. The separable binaural torsion spring of claim 5, wherein: The surface of the rubber pad (11) is connected with a screw (12), and there are three longitudinally equidistantly distributed screws (12).

7. The separable binaural torsion spring of claim 5, wherein: The rubber pad (11) is detachably connected with the limiting rod (2) through the screw (12).

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