A square type damper

Abstract

The application discloses a square buffer and relates to the technical field of buffers. The square buffer comprises a tail, a shell and a tension spring. The left end of the buffer is provided with the tail. The right end of the tail is fixedly screwed with the shell. The left inner wall of the shell is fixedly screwed with the tension spring. The right end of the tension spring extends to the right end outside of the shell. The application realizes the accurate controllability of breaking force and the decoupling of structure and function through the synergistic effect of the axial compression deformation of the wave-shaped tension spring and the controllable fracture of the connecting point. The connecting point serves as the only preset weak link, so that the energy absorption curve of the buffering process has the double-stage characteristics. The initial stage is provided with the force relief effect generated by the fracture of the connecting point. The subsequent stage is provided with the linear buffering for releasing the residual energy by the wave-shaped tension spring. The breaking force of the connecting point is stably fallen in the interval of 12-14 kN. The shell is integrally formed, so that the assembly process of multiple components is omitted, and the machining and assembly costs are remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of buffer technology, and more specifically to a square buffer. Background Technology

[0002] As a core energy absorption and shock absorption protection device, the shock absorber is widely used in many fields such as machinery manufacturing, transportation, construction engineering, and electronic equipment. Its technological development has always revolved around three core aspects: energy buffering efficiency, structural stability, and scenario adaptability. After multiple generations of iteration, it has integrated technological achievements from multiple fields such as materials science, mechanical design, and fluid mechanics, becoming a key component to ensure equipment operation safety, extend service life, and improve user experience.

[0003] As one of the applications of buffers, rope buffers are mainly used to absorb the instantaneous impact force generated when a rope is under stress, protecting personnel, equipment, and the rope itself. They are widely used in high-altitude operations, outdoor rescue, mountaineering and exploration, power maintenance, and other scenarios. Their technological development has always revolved around three core aspects: buffering efficiency, load-bearing capacity, and scenario adaptability, integrating achievements from multiple fields such as materials science and mechanical design, and has become a key device for ensuring the safety of rope operations.

[0004] Early rope buffers mostly used simple knots and rubber sleeves, which could only achieve basic buffering and had problems such as short buffering stroke, uneven absorption of impact force, and easy damage to the rope.

[0005] Currently, rope buffers have been segmented by application scenario. High-altitude work models emphasize lightweight and portability, employing a foldable energy-consuming structure; outdoor rescue models prioritize impact resistance, capable of withstanding instantaneous impacts of several tons; and power maintenance models emphasize corrosion resistance and aging resistance, adapting to harsh outdoor environments. However, the industry still faces common pain points, such as unclear breaking force and high manufacturing costs. Summary of the Invention

[0006] The purpose of this invention is to provide a square buffer that solves the problems of unclear breaking force and high manufacturing cost.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A square-shaped buffer, characterized in that it includes a tail, a housing, and a tension spring. The tail is located at the left end of the buffer, and the housing is screwed to the right end of the tail. The tension spring is screwed to the inner left wall of the housing, and the right end of the tension spring extends to the outer right side of the housing.

[0009] The outer casing includes a housing A, a connection point, a housing B, and a reserved opening. The left end of the outer casing is housing A, and the right end of housing A is connected to housing B through the connection point. Housing A, the connection point, and housing B are integrally formed. The reserved opening is provided on the right outer wall of housing B, and the right end of the tension spring extends from the reserved opening to the outside of the right end of housing B.

[0010] The tension spring located inside the housing is wavy, and the width of the tension spring located inside the housing is greater than that of the tension spring located outside the housing.

[0011] Furthermore, the tail section includes a connecting fork, a pin, a pin ring, and a bolt. The connecting fork is U-shaped, with the pin inserted into the left end of the connecting fork, and the pin ring inserted into the lower end of the pin. The right end of the connecting fork is screwed to the left end of the outer casing by the bolt.

[0012] Furthermore, the fracture force at the connection point is 12~14kN.

[0013] The beneficial effects of this invention are as follows: This application achieves precise control of breaking force and decoupling of structure and function through the synergistic effect of axial compression deformation of the wave-shaped tension spring and controllable fracture of the connection point; the connection point, as the only pre-set weak link, makes the energy absorption curve of the buffering process have a two-stage characteristic: in the initial stage, the connection point fracture generates a force release effect, and in the subsequent stage, the wave-shaped tension spring provides linear buffering to release the remaining energy, ensuring that the breaking force of the connection point is stably in the range of 12~14kN; the shell adopts an integrated molding process, eliminating the assembly process of multiple parts and significantly reducing processing and assembly costs.

[0014] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall side structure according to an embodiment of the present invention.

[0017] Figure 3 for Figure 1 The diagram shows a cross-sectional structure of AA.

[0018] Figure 4 for Figure 2 The diagram shows a cross-sectional structure of BB.

[0019] Explanation of reference numerals in the attached drawings: 1. Tail end; 2. Outer shell; 3. Tension spring; 10. Connecting fork; 11. Pin; 12. Pin ring; 13. Bolt; 20. Shell A; 21. Connection point; 22. Shell B; 23. Reserved opening. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Please see Figure 1 A preferred embodiment of this application shows a square buffer, including a tail portion 1, a housing 2, and a tension spring 3. The tail portion 1 is located at the left end of the buffer, and the housing 2 is screwed to the right end of the tail portion 1. The tension spring 3 is screwed to the inner wall of the left side of the housing 2, and the right end of the tension spring 3 extends to the outer side of the right end of the housing 2.

[0025] The outer casing 2 includes a housing A20, a connection point 21, a housing B22, and a reserved opening 23. The left end of the outer casing 2 is housing A20, and the right end of housing A20 is connected to housing B22 through connection point 21. Housing A20, connection point 21, and housing B22 are integrally formed. The reserved opening 23 is provided on the right outer wall of housing B22, and the right end of the tension spring 3 extends from the reserved opening 23 to the outside of the right end of housing B22.

[0026] The tension spring 3 located inside the outer casing 2 is wavy, and the width of the tension spring 3 located inside the outer casing 2 is greater than that of the tension spring 3 located outside the outer casing 2.

[0027] The tail section 1 includes a connecting fork 10, a pin 11, a pin ring 12, and a bolt 13. The connecting fork 10 is U-shaped. The pin 11 is inserted into the left end of the connecting fork 10, and the pin ring 12 is inserted into the lower end of the pin 11. The right end of the connecting fork 10 is screwed to the left end of the outer casing 2 by the bolt 13.

[0028] The fracture force at connection point 21 is 12~14kN.

[0029] In use, the tail 1 is connected to the end of the rope to be buffered, and the tension spring 3 on the right end of the outer shell 2 is connected to the fixed anchor point. When the impact load is applied axially to the tail 1, the width of the tension spring 3 inside the outer shell 2 is greater than the reserved opening 23 of the outer shell 2, thereby causing the outer shell to deform. Then, when the load continues to increase to the fracture threshold of the connection point 21, the connection point 21 undergoes a controllable fracture, and the shell A20 separates from the shell B22. At this time, the shell A20 moves backward synchronously with the tail 1 and the left section of the internal tension spring, while the shell B22 remains stationary and is fixed to the anchor point, thereby generating a force relief effect at the moment of fracture, pulling the tension spring 3 to deform and absorb energy, thus significantly improving the response consistency and reliability of the buffer under sudden impact. The specific manifestation of this two-stage energy absorption process is as follows: the first stage is the deterministic fracture of the connection point 21 in the load range of 12~14kN, and the second stage is the continuous axial stretching of the tension spring 3 during the backward movement of the shell A20, and the release of the remaining energy within the deformation range.

[0030] In summary, this invention provides a square-shaped buffer. This device achieves precise control of breaking force and decoupling of structure and function through the synergistic effect of axial compression deformation of the wave-shaped tension spring and controllable fracture at the connection point. The connection point, as the only pre-set weak link, gives the energy absorption curve of the buffering process a two-stage characteristic: in the initial stage, the connection point fracture generates a force-releasing effect, and in the subsequent stage, the wave-shaped tension spring provides linear buffering to release the remaining energy, ensuring that the breaking force at the connection point stably falls within the range of 12~14kN. The outer shell adopts a one-piece molding process, eliminating multiple component assembly processes and significantly reducing processing and assembly costs.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A square buffer, characterized in that, The buffer includes a tail (1), a housing (2), and a tension spring (3). The tail (1) is located at the left end of the buffer. The housing (2) is screwed to the right end of the tail (1). The tension spring (3) is screwed to the inner left wall of the housing (2). The right end of the tension spring (3) extends to the outer side of the right end of the housing (2). The outer shell (2) includes a shell A (20), a connection point (21), a shell B (22), and a reserved opening (23). The left end of the outer shell (2) is the shell A (20), and the right end of the shell A (20) is connected to the shell B (22) through the connection point (21). The shell A (20), the connection point (21), and the shell B (22) are integrally formed. The reserved opening (23) is provided on the right outer wall of the shell B (22). The right end of the tension spring (3) extends from the reserved opening (23) to the outside of the right end of the shell B (22). The tension spring (3) located inside the outer shell (2) is wavy, and the width of the tension spring (3) located inside the outer shell (2) is greater than that of the tension spring (3) located outside the outer shell (2).

2. A square buffer as described in claim 1, characterized in that, The tail (1) includes a connecting fork (10), a pin (11), a pin ring (12), and a bolt (13). The connecting fork (10) is U-shaped. The pin (11) is inserted into the left end of the connecting fork (10), and the pin ring (12) is inserted into the lower end of the pin (11). The right end of the connecting fork (10) is screwed to the left end of the outer shell (2) by the bolt (13).

3. A square buffer as described in claim 1, characterized in that, The fracture force at the connection point (21) is 12~14kN.

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