Bolt structure capable of preventing memory metal wire from being damaged
By providing the first and second springs in the memory wire latch structure, the problem of memory wire damage after the latch is stuck is solved, and the normal shrinkage of the memory wire and the stability of the structure are achieved.
Patent Information
- Application Number
- CN202421573001.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-04
AI Technical Summary
After the latch is stuck, the memory wire is easily damaged when it shrinks, resulting in the scrapping of the entire structure.
A latch structure is designed, including a fixed bracket, a movable bracket and a memory wire. The memory wire is covered with a first and second springs, which are connected to the fixed and movable brackets respectively. A limiting structure and a latch are provided in the movable bracket, and a second spring is covered with a latch.
By providing the first and second springs, the memory wire can still shrink normally after the latch is stuck, avoiding damage and ensuring the stability and reliability of the structure.
Smart Images
Figure CN222650301U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of memory metal wire latch structures, in particular to a latch structure capable of preventing the memory metal wire from being damaged. Background Art
[0002] In the prior art, when the memory wire of the memory wire plug structure is contracted, if the plug is stuck, the metal memory wire is still contracted, and the memory wire is easily damaged or even the entire structure is scrapped. In view of the above technical problems, the present application proposes a new technical solution, which can protect the memory wire from damage when the plug is stuck while the memory wire is still contracted. Utility Model Content
[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a pin structure that can prevent damage to the memory wire, aiming to solve the technical problem in the prior art that the memory wire pin structure may be damaged when the pin is stuck while the memory wire is still contracted.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A latch structure capable of preventing a memory metal wire from being damaged comprises a fixed bracket, a movable bracket and a memory metal wire, wherein the memory metal wire passes through the fixed bracket and the movable bracket, a first spring is sleeved on the memory metal wire, one end of the first spring abuts against the fixed bracket, and the other end of the first spring abuts against the movable bracket; a through hole is formed in the movable bracket, a latch is arranged at the through hole, a second spring is sleeved on the section of the latch inserted into the movable bracket; a limiting structure is arranged in the movable bracket, and the limiting structure abuts against the latch.
[0006] Furthermore, in the latch structure capable of preventing damage to the memory wire, the elastic coefficient of the first spring is smaller than the elastic coefficient of the second spring.
[0007] Furthermore, in the latch structure capable of preventing the memory metal wire from being damaged, a flange is provided at one end of the latch, and the flange abuts against the limiting structure.
[0008] Furthermore, in the latch structure capable of preventing the memory metal wire from being damaged, the axial direction of the latch is parallel to the length direction of the memory metal wire.
[0009] Furthermore, in the latch structure capable of preventing the memory wire from being damaged, a plurality of legs are provided on the fixing bracket.
[0010] Furthermore, in the latch structure capable of preventing the memory wire from being damaged, the end of the memory wire extending into the movable bracket is provided with a first end, and the end of the memory wire extending out of the fixed bracket is provided with a second end.
[0011] Beneficial effect: The utility model provides a latch structure that can prevent the memory metal wire from being damaged. Compared with the prior art, through the above analysis, it can be seen that compared with the prior art, the present application realizes a memory metal wire latch structure by setting a first spring and a second spring. After the latch is stuck and the memory metal wire is still contracted, the first spring and the second spring will be respectively compressed. Since the first spring and the second spring are compressed, it is ensured that the memory metal wire can contract normally and will not be pulled apart. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The schematic diagram of the structure of the latch structure is to prevent the memory wire from being damaged. DETAILED DESCRIPTION
[0013] The utility model provides a latch structure that can prevent the memory wire from being damaged. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0014] See also Figure 1 The utility model provides a latch structure that can prevent damage to a memory metal wire. The accompanying drawings are only used to explain the structural principle and are not proportional to the actual product. The accompanying drawings only depict structures related to the invention of the present application, and some conventional structures are not specifically depicted. The orientation shown in the accompanying drawings is only an example. In actual applications, the latch structure that can prevent damage to a memory metal wire can be placed in different orientations according to specific circumstances.
[0015] The terms "first", "second", etc. described herein are merely different names for similar structures for the convenience of explanation and are not intended to limit the present application.
[0016] The latch structure capable of preventing the memory wire from being damaged comprises a fixed bracket 1, a movable bracket 2, and a memory wire 3. The memory wire passes through the fixed bracket and the movable bracket, and a first spring 51 is sleeved on the memory wire. One end of the first spring abuts against the fixed bracket, and the other end of the first spring abuts against the movable bracket. The movable bracket is provided with a through hole 20, and a latch 4 is arranged at the through hole. A second spring 52 is sleeved on the section of the latch inserted into the movable bracket. A limiting structure 21 is arranged in the movable bracket, and the limiting structure abuts against the latch. The above-mentioned limiting structure can be a limiting rod, a limiting plate, a limiting rib, etc., which is not specifically limited here, so as to meet the requirement of being able to limit the travel of the latch.
[0017] The above-mentioned latch and the through hole on the movable bracket are clearance-matched, and the specific value of the clearance is not limited here, so as to ensure that the latch can smoothly reciprocate in the through hole. The outer diameter of the second spring is larger than the diameter of the through hole, so as to ensure that one end of the second spring (the right end in the figure) can abut against the movable bracket.
[0018] Preferably, the elastic coefficient of the first spring is smaller than the elastic coefficient of the second spring (the significance of this setting will be explained in detail below).
[0019] Furthermore, a flange 41 is provided at one end of the latch, and the flange abuts against the limiting structure.
[0020] Furthermore, the axial direction of the bolt is parallel to the length direction of the memory metal wire. This arrangement makes the direction in which the memory metal wire contracts or stretches consistent with the moving direction of the bolt.
[0021] Furthermore, the fixing bracket is provided with a plurality of legs 14. By providing a plurality of legs, it is convenient to fix the fixing bracket on the corresponding product.
[0022] Furthermore, the end of the memory metal wire extending into the movable bracket is provided with a first end 31, and the end of the memory metal wire extending out of the fixed bracket is provided with a second end 32.
[0023] The above-mentioned memory wire latch structure can be applied in many occasions, for example, in electric control locks. When applied in electric control locks, the above-mentioned latch can play the role of a lock tongue, and the extension or contraction of the memory wire can control the extension of the latch (moving to the right as shown in the figure) or contraction (moving to the left as shown in the figure). Under normal circumstances, when the memory wire contracts, it will pull the movable bracket back (moving to the left as shown in the figure); because the elastic coefficient of the first spring is smaller than the elastic coefficient of the second spring, the first spring is compressed at this time, and the second spring will not deform, and at the same time drive the latch to move to the left (this process is unlocking). When the latch is stuck, that is, the friction between the latch and the lock buckle is greater than the elastic force generated by the second spring, the memory wire will continue to contract and pull the movable bracket, so that the second spring is compressed; in this process, the latch is stuck and cannot move, but the memory wire drives the bracket to compress the second spring and move to the left, ensuring that the metal memory wire contracts normally without being damaged.
[0024] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.
Claims
1. A latch structure capable of preventing damage to a memory metal wire, comprising a fixed bracket, a movable bracket, and a memory metal wire, characterized in that: The memory metal wire passes through the fixed bracket and the movable bracket, and a first spring is sleeved on the memory metal wire, one end of the first spring is against the fixed bracket, and the other end of the first spring is against the movable bracket; the movable bracket is provided with a through hole, a latch is arranged at the through hole, and a second spring is sleeved on the section of the latch inserted into the movable bracket; a limiting structure is arranged in the movable bracket, and the limiting structure is against the latch.
2. The latch structure capable of preventing damage to the memory wire according to claim 1, characterized in that: The elastic constant of the first spring is smaller than the elastic constant of the second spring.
3. The latch structure capable of preventing damage to the memory wire according to claim 1, characterized in that: One end of the latch is provided with a flange, which abuts against the limiting structure.
4. The latch structure capable of preventing damage to the memory wire according to claim 1, characterized in that: The axial direction of the latch is parallel to the length direction of the memory wire.
5. The latch structure capable of preventing damage to the memory wire according to claim 1, characterized in that: A plurality of supporting legs are arranged on the fixing bracket.
6. The latch structure capable of preventing damage to the memory wire according to claim 1, characterized in that: The end of the memory metal wire extending into the movable bracket is provided with a first end head, and the end of the memory metal wire extending out of the fixed bracket is provided with a second end head.