Novel friction locking mechanism
By designing a new friction locking mechanism including a guide seat, a spring and a lock head, the time-consuming problem of locking and unlocking in the mechanical structure is solved, and a more convenient locking and unlocking process is achieved.
Patent Information
- Application Number
- CN202421442708.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The fixation of the mechanical structure after movement is in place requires locking mechanisms such as pins and limiting devices, which makes locking and unlocking time-consuming, especially in structures that require rapid response.
A new type of friction locking mechanism is designed, including a guide seat, a spring and a lock head. Through the inclined entry and exit faces of the lock head and the cooperation of the spring, it can achieve convenient locking and unlocking.
Compared with traditional limiting methods such as latches, locking and unlocking of the new friction locking mechanism is more convenient and suitable for mechanical structures that require rapid response.
Smart Images
Figure CN222650441U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment, in particular to a novel friction locking mechanism. Background Art
[0002] The fixation of mechanical structures after they have moved into place often requires locking mechanisms such as latches and limit devices. However, while these locking mechanisms provide reliable fixation, they also bring about the problem of time-consuming locking and unlocking, which is particularly disadvantageous in structures that require quick response. Utility Model Content
[0003] In view of the above situation, the utility model provides a novel friction locking mechanism, which aims to solve the problem that the fixation of the mechanical structure after it moves into place often requires locking mechanisms such as latches and limit devices, but these locking mechanisms also bring about the technical problem of time-consuming locking and unlocking while providing reliable fixation.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] The utility model provides a novel friction locking mechanism, comprising:
[0006] The guide seat has a coaxially arranged accommodating cavity and an avoidance channel therein, the diameter of the accommodating cavity is larger than the diameter of the avoidance channel, one end of the avoidance channel extends to the outside of the guide seat, and the other end is communicated with the accommodating cavity;
[0007] A spring is arranged in the accommodating cavity;
[0008] The lock head passes through the avoidance channel and is slidably connected with the accommodating cavity, and is in direct or indirect contact with the spring;
[0009] Among them: the spring is used to make the lock head emerge from the avoidance channel; the opposite sides of the lock head have an inclined entry surface and an exit surface, the locked element can move along the longitudinal direction of the lock head to push the entry surface or the exit surface, and the opposite sides of the locked element have inclined surfaces corresponding to the entry surface and the exit surface.
[0010] In some embodiments of the present invention, the angle between the longitudinal cutting direction of the lock head and the entry surface is smaller than the angle between the longitudinal cutting direction of the lock head and the exit surface.
[0011] In some embodiments of the present invention, the angle between the longitudinal cutting direction of the lock head and the entry surface is equal to the angle between the longitudinal cutting direction of the lock head and the exit surface.
[0012] In some embodiments of the utility model, one end of the guide seat away from the avoidance channel has a notch connected to the accommodating chamber, the accommodating chamber is located between the notch and the avoidance channel, and a blocking cap is detachably connected to the notch to form an accommodating chamber between the avoidance channel and the blocking cap.
[0013] In some embodiments of the utility model, the plugging cap is connected to the notch by a pin or a screw.
[0014] In some embodiments of the present invention, the lock head is in indirect contact with the spring.
[0015] In some embodiments of the present invention, a slider is connected to one end of the lock head, an outer wall of the slider is slidably matched with an inner wall of the accommodating cavity, and an end of the slider away from the lock head is in contact with the spring.
[0016] In some embodiments of the utility model, a guide rod is fixed on the end surface of the sliding block, and a guide hole matching the guide rod is provided on the blocking cap.
[0017] In some embodiments of the present invention, the guide seat is welded at a designated position.
[0018] In some embodiments of the present invention, the bottom of the guide seat has at least two mutually parallel ridges, and a positioning groove is formed between any two adjacent ridges.
[0019] The embodiments of the present invention have at least the following advantages or beneficial effects:
[0020] Compared with limiting methods such as latches, the locking and unlocking of the new friction locking mechanism are more convenient.
[0021] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0023] Figure 1 It is a three-dimensional structural schematic diagram of a novel friction locking mechanism;
[0024] Figure 2 It is a structural schematic diagram of a novel friction locking mechanism and a locked element;
[0025] Figure 3 for Figure 2 Schematic diagram of the structure of the locked element.
[0026] Icons: 1-guide seat, 11-accommodating cavity, 12-avoidance channel, 13-notch, 14-blocking cap, 141-guide hole, 15-convex ridge, 16-positioning groove, 2-spring, 3-locking head, 31-entry surface, 32-exit surface, 33-slider, 34-guide rod. DETAILED DESCRIPTION
[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.
[0028] In the description of the embodiments of the present invention, it should be understood that the term "plurality" means two or more than two, unless otherwise clearly and specifically defined.
[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0030] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0031] See also Figure 1~Figure 3 This embodiment provides a new friction locking mechanism, including a guide seat 1, a spring 2 and a lock head 3.
[0032] The guide seat 1 has a coaxially arranged accommodating cavity 11 and an avoidance channel 12. The diameter of the accommodating cavity 11 is larger than the diameter of the avoidance channel 12. One end of the avoidance channel 12 extends to the outside of the guide seat 1, and the other end is connected to the accommodating cavity 11. The guide seat 1 is fixed at a designated position by welding or other means.
[0033] It should be noted that, in order to achieve the purpose of the present application, the avoidance channel 12 should be square or other non-circular shapes, so that the lock head 3 will not rotate during operation, thereby achieving the purpose of the present utility model.
[0034] In this embodiment, preferably, the accommodating chamber 11 is formed in the following manner: the end of the guide seat 1 away from the avoidance channel 12 has a notch 13 connected to the accommodating chamber 11, the accommodating chamber 11 is located between the notch 13 and the avoidance channel 12, and a blocking cap 14 is detachably connected to the notch 13, so that the accommodating chamber 11 is formed between the avoidance channel 12 and the blocking cap 14. The blocking cap 14 can be installed and fixed by means of pins, screws, etc., so as to facilitate the disassembly and assembly of the blocking cap 14.
[0035] In a specific implementation scenario, the bottom of the guide seat 1 has at least two parallel ribs 15, and a positioning groove 16 is formed between any two adjacent ribs 15. In this way, a corresponding protrusion structure can be set at the position for fixing the guide seat 1 to engage with the positioning groove 16, thereby assisting the positioning of the guide seat 1. After positioning, it is convenient to fix the guide seat 1 at the specified position by welding or other means.
[0036] The spring 2 is arranged in the accommodating chamber 11 .
[0037] The lock head 3 passes through the avoidance channel 12 and is slidably connected to the accommodating cavity 11, and is in direct or indirect contact with the spring 2. The spring 2 is used to make the lock head 3 appear from the avoidance channel 12. The opposite sides of the lock head 3 have an entry surface 31 and an exit surface 32 that are arranged obliquely. The locked element can move along the longitudinal direction of the lock head 3 to push the entry surface 31 or the exit surface 32. The opposite sides of the locked element have inclined surfaces corresponding to the entry surface 31 and the exit surface 32 (due to viewing angle, Figure 2 not shown).
[0038] In combination with the above, after the locked element pushes the entry surface 31 to retract the lock head 3, the locked element is located on the exit surface 32 side of the lock head 3 and is in a locked state, which is conducive to the force of the spring 2 reacting on the lock head 3 to generate a large friction force between the exit surface 32 and the locked element, thereby playing a locking role; after the outside world applies an appropriate force to the locked element (exceeding the locking capacity), it can force the locked element to move in the opposite direction to push the exit surface 32. When the locked element is located on the entry surface 31 side of the lock head 3, the lock head 3 is extended under the action of the spring 2 and is in an unlocked state. It can be seen that compared with the limiting methods such as the latch, the locking and unlocking of the new friction locking mechanism are more convenient.
[0039] In this embodiment, preferably, see Figure 1 The angle between the longitudinal direction of the lock head 3 and the entry surface 31 is small, which is conducive to the locked element entering the parking position (located on the exit surface 32 side of the lock head 3) to achieve locking; the angle between the longitudinal direction of the lock head 3 and the exit surface 32 is large (relative to the aforementioned angle), which is conducive to locking. Of course, in other embodiments, the above two angles can also be equal.
[0040] In this embodiment, preferably, the lock head 3 is in indirect contact with the spring 2, and the lock head 3 is slidably connected with the accommodating cavity 11 in the following manner. Specifically, one end of the lock head 3 is connected to a slider 33, the outer wall of the slider 33 is slidably matched with the inner wall of the accommodating cavity 11, and the end of the slider 33 away from the lock head 3 is in contact with the spring 2.
[0041] It is understandable that in order to achieve sliding of the slider 33, the accommodating chamber 11 needs to be able to communicate with the external environment, for example, a hole can be opened on the side wall of the accommodating chamber 11, or it can be achieved through the gap between the corresponding moving pairs, the reserved assembly gap, etc.
[0042] Furthermore, in order to facilitate and better guide the movement of the lock head 3, a guide rod 34 can be fixed on the end face of the slider 33, and a guide hole 141 matching the guide rod 34 can be opened on the blocking cap 14. The assembly gap between the guide rod 34 and the guide hole 141 is as small as possible to ensure the effect of guiding the movement of the lock head 3.
[0043] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be combined with each other at will. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A novel friction locking mechanism, characterized in that: include: A guide seat, wherein a coaxially arranged accommodating cavity and an escape passage are provided therein, wherein the diameter of the accommodating cavity is larger than the diameter of the escape passage, and one end of the escape passage extends to the outside of the guide seat, and the other end is communicated with the accommodating cavity; A spring, arranged in the accommodating cavity; A lock head passes through the avoidance channel and is slidably connected to the accommodating cavity, and is in direct or indirect contact with the spring; Wherein: the spring is used to make the lock head emerge from the avoidance channel; the opposite sides of the lock head have an entry surface and an exit surface that are arranged obliquely, the locked element can move along the longitudinal direction of the lock head to push the entry surface or the exit surface, and the opposite sides of the locked element have inclined surfaces corresponding to the entry surface and the exit surface.
2. The novel friction locking mechanism according to claim 1 is characterized in that: The angle between the longitudinal cutting direction of the lock head and the entry surface is smaller than the angle between the longitudinal cutting direction of the lock head and the exit surface.
3. The novel friction locking mechanism according to claim 1 is characterized in that: The angle between the longitudinal cutting direction of the lock head and the entry surface is equal to the angle between the longitudinal cutting direction of the lock head and the exit surface.
4. The novel friction locking mechanism according to claim 1 is characterized in that: The guide seat has a notch at one end away from the avoidance channel that is connected to the accommodating chamber. The accommodating chamber is located between the notch and the avoidance channel. A blocking cap is detachably connected to the notch, and the accommodating chamber is formed between the avoidance channel and the blocking cap.
5. The novel friction locking mechanism according to claim 4 is characterized in that: The plugging cap is connected to the notch by a pin or a screw.
6. The novel friction locking mechanism according to claim 4 is characterized in that: The locking head is in indirect contact with the spring.
7. The novel friction locking mechanism according to claim 6 is characterized in that: One end of the lock head is connected to a slider, the outer wall of the slider is slidably matched with the inner wall of the accommodating cavity, and one end of the slider away from the lock head is in contact with the spring.
8. The novel friction locking mechanism according to claim 7 is characterized in that: A guide rod is fixed on the end surface of the sliding block, and a guide hole matching the guide rod is provided on the blocking cap.
9. The novel friction locking mechanism according to claim 1 is characterized in that: The guide seat is welded at a designated position.
10. The novel friction locking mechanism according to any one of claims 1 to 9, characterized in that: The bottom of the guide seat has at least two convex ridges parallel to each other, and a positioning groove is formed between any two adjacent convex ridges.