latch
By designing the slide rail assembly and self-locking component of the self-locking device, and utilizing the cooperation of the pull rope and locking block, rapid locking and unlocking in high-altitude operations is achieved, solving the problem of cumbersome operation in existing technologies and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI DONGCHENG ELECTRIC POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-09
Smart Images

Figure CN224339286U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of connecting devices, specifically relating to self-locking devices. Background Technology
[0002] In production and daily life, workers often need to work at heights outdoors, especially on high-voltage power distribution frames. Workers need to move vertically and horizontally at heights to perform different tasks, which requires workers to wear safety locks connected to guide rails to ensure their safety.
[0003] Existing self-locking devices are cumbersome to operate. During high-altitude operations, the device needs to be moved frequently, and the locking and unlocking processes need to be repeated multiple times, which seriously affects the efficiency of the work. Therefore, it is necessary to design a self-locking device that is easy to use. Utility Model Content
[0004] The purpose of this invention is to provide a self-locking device, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] Self-locking device: Includes a slide rail assembly, with a self-locking component slidably connected to the outer wall of the slide rail assembly. The self-locking component includes a slide block, with rollers on the inner wall of the slide block, a suspension hole at the bottom of the slide block, a locking mechanism on the inner wall of the slide block, a control mechanism on the inner wall of the slide block, and a locking block fixedly connected to the outer wall of the slide block. In use, the operator attaches a traction rope to the suspension hole to connect with the self-locking component, and moves the self-locking component along the slide rail assembly to adjust the working position according to the work requirements. When the working position is reached, the operator pulls down the pull... The rope component and top plate move downwards, and the bottom inner wall of the top plate fits and cuts down against the outer corner of the connecting slider, pushing the connecting slider and locking rod towards the slide rail assembly. The locking rod is inserted into the locking hole, and the retaining ring in the rope component is locked in the locking block, completing the locking of the self-locking device. Conversely, pulling the rope component downwards moves the retaining ring out of the locking block and releases the rope component. Under the action of the first return spring, the top plate moves upwards, and the top plate's limitation on the connecting slider disappears. Under the action of the second return spring, the locking rod resets and moves away, and the locking of the locking rod on the locking hole disappears, allowing it to continue sliding and moving along the slide rail seat.
[0007] By setting up a self-locking component, the pull rope can be used to control its operation and cooperate with the locking block to fix the pull rope. This allows for quick locking of the position between the self-locking component and the slide rail component. The operation is convenient and can be easily performed by operators at heights, thereby reducing the impact on work efficiency.
[0008] The control mechanism includes a vertical slider, a first return spring is fixedly connected to the bottom of the vertical slider, a top plate is fixedly connected to the outer wall of the vertical slider, and a pull rope is fixedly connected to the outer wall of the top plate.
[0009] The locking mechanism includes a locking rod, a second return spring is fixedly connected to the outer wall of the locking rod, and a connecting slider is fixedly connected to one end of the locking rod;
[0010] The slide rail assembly includes a slide rail base, the outer wall of which has a first limiting groove, a second limiting groove, and a locking hole. The slide rail assembly, with its first and second limiting grooves, facilitates a limiting sliding effect with the slide base, while the locking hole allows for flexible locking with the locking rod, improving the device's usability and providing convenience for the user.
[0011] As a preferred embodiment of this utility model: protrusions are fixedly connected to both sides of the longitudinal slider, a longitudinal sliding groove is provided on the inner wall of the slide block, the outer wall of the longitudinal slider and the protrusions are slidably connected to the inner wall of the longitudinal sliding groove, and the bottom of the first return spring is fixedly connected to the inner wall of the longitudinal sliding groove.
[0012] As a preferred embodiment of this utility model: the pull rope component includes upper and lower pull ropes, and a retaining ring is fixedly connected between the two pull ropes, the inner wall of the retaining ring being engaged with the outer side of the locking block.
[0013] As a preferred embodiment of this utility model: one end of the locking rod is fixedly connected to a horizontal sliding plate, and the outer wall of the horizontal sliding plate is fixedly connected to one end of the second reset spring.
[0014] As a preferred embodiment of this utility model: the inner wall of the slide block is provided with a horizontal sliding groove, the locking mechanism is disposed on the inner wall of the horizontal sliding groove, and the end of the second reset spring away from the locking rod is fixedly connected to the inner wall of the horizontal sliding groove.
[0015] As a preferred embodiment of this utility model: the bottom of the inner wall of the top plate is chamfered, the end of the connecting slider away from the second reset spring is chamfered, and the outer wall of the connecting slider is fitted and connected to the inner wall of the top plate.
[0016] As a preferred embodiment of this utility model: the inner wall of the slide is provided with a bearing, and the inner wall of the slide is movably connected to the outer wall of the roller through the bearing.
[0017] As a preferred embodiment of this utility model: the number of locking holes is multiple and they are equidistant, and the inner wall of the locking hole is engaged with one end of the locking rod.
[0018] Compared with the prior art, the beneficial effects of this utility model are: by setting the self-locking component, by pulling to control the use of the pull rope component, and by cooperating with the locking block to fix the pull rope component, the position locking between the self-locking component and the slide rail component can be quickly achieved, and the operation is convenient. Operators can also operate it conveniently at high altitudes, thereby reducing the impact on work efficiency.
[0019] The slide rail assembly, including the first and second limiting slide grooves, facilitates the limiting sliding effect between the slide and the slide block. The locking hole allows for flexible locking with the locking rod, improving the usability of the device and providing convenience for the user. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is an external schematic diagram of the self-locking component of this utility model;
[0023] Figure 3 This is a cross-sectional view of the self-locking component of this utility model;
[0024] Figure 4 This is a schematic diagram of the control mechanism of this utility model;
[0025] Figure 5 This is a schematic diagram of the locking mechanism of this utility model;
[0026] Figure 6 This is a schematic diagram of the slide rail assembly of this utility model.
[0027] In the diagram: 1. Slide rail assembly; 101. Slide rail seat; 102. First limiting slide groove; 103. Second limiting slide groove; 104. Locking hole; 2. Self-locking assembly; 201. Slide seat; 202. Control mechanism; 2021. Vertical slider; 2022. First return spring; 2023. Top plate; 2024. Pull rope; 203. Roller; 204. Locking mechanism; 2041. Locking rod; 2042. Second return tension spring; 2043. Connecting slider; 205. Locking block. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0031] Example 1
[0032] Reference Figure 1-5 This is the first embodiment of the present utility model. This embodiment provides a self-locking device, including a slide rail assembly 1. The outer wall of the slide rail assembly 1 is slidably connected to a self-locking component 2. The self-locking component 2 includes a slide seat 201. The inner wall of the slide seat 201 is provided with a roller 203. The bottom of the slide seat 201 is provided with a suspension hole. The inner wall of the slide seat 201 is provided with a locking mechanism 204. The inner wall of the slide seat 201 is provided with a control mechanism 202. The outer wall of the slide seat 201 is fixedly connected with a locking block 205.
[0033] The control mechanism 202 includes a vertical slider 2021, a first return spring 2022 is fixedly connected to the bottom of the vertical slider 2021, a top plate 2023 is fixedly connected to the outer wall of the vertical slider 2021, and a pull rope 2024 is fixedly connected to the outer wall of the top plate 2023.
[0034] The locking mechanism 204 includes a locking rod 2041, a second reset spring 2042 fixedly connected to the outer wall of the locking rod 2041, and a connecting slider 2043 fixedly connected to one end of the locking rod 2041.
[0035] The longitudinal slider 2021 has protrusions fixedly connected to both sides, and the inner wall of the slide block 201 has a longitudinal sliding groove. The outer wall of the longitudinal slider 2021 and the protrusions are slidably connected to the inner wall of the longitudinal sliding groove, and the bottom of the first return spring 2022 is fixedly connected to the inner wall of the longitudinal sliding groove.
[0036] The pull rope component 2024 includes upper and lower pull ropes, and a retaining ring is fixedly connected between the two pull ropes. The inner wall of the retaining ring is engaged with the outer side of the locking block 205.
[0037] Specifically, a horizontal sliding plate is fixedly connected to one end of the locking rod 2041, and the outer wall of the horizontal sliding plate is fixedly connected to one end of the second reset spring 2042;
[0038] Furthermore, a transverse sliding groove is provided on the inner wall of the slide block 201, the locking mechanism 204 is provided on the inner wall of the transverse sliding groove, and the end of the second reset spring 2042 away from the locking rod 2041 is fixedly connected to the inner wall of the transverse sliding groove.
[0039] Preferably, the bottom of the inner wall of the top plate 2023 is chamfered, the end of the connecting slider 2043 away from the second reset spring 2042 is chamfered, and the outer wall of the connecting slider 2043 is fitted and connected to the inner wall of the top plate 2023.
[0040] It should be noted that the inner wall of the slide 201 is provided with a bearing, and the inner wall of the slide 201 is movably connected to the outer wall of the roller 203 through the bearing.
[0041] During use, the operator attaches the traction rope to the suspension hole to connect with the self-locking component 2, and moves the self-locking component 2 along the slide rail assembly 1 to adjust the working position according to the work requirements. When the working position is reached, the operator pulls down the traction rope 2024, causing the top plate 2023 to move downwards. The bottom inner wall of the top plate 2023 fits against the beveled outer end of the connecting slider 2043, pushing the connecting slider 2043 and the locking rod 2041 towards the slide rail assembly 1. The locking rod 2041 is inserted into the locking hole 104, and the traction rope 2024 is pulled down. The retaining ring in 024 is locked in the locking block 205, thus locking the self-locking device. Conversely, pulling down the pull rope 2024 moves the retaining ring out from inside the locking block 205. Releasing the pull rope 2024 causes the top plate 2023 to move upward under the action of the first return spring 2022, and the limit of the top plate 2023 on the connecting slider 2043 disappears. Under the action of the second return spring 2042, the locking rod 2041 resets and moves away, and the locking of the locking rod 2041 on the locking hole 104 disappears, allowing it to continue sliding along the slide rail seat 101.
[0042] In summary, by setting up the self-locking component 2, and by using the pull control rope component 2024, and by cooperating with the locking block 205 to fix the rope component 2024, the position locking between the self-locking component 2 and the slide rail component 1 can be quickly achieved. The operation is convenient, and the operator can also operate it conveniently at high altitudes, thereby reducing the impact on work efficiency.
[0043] Example 2
[0044] Reference Figure 6This is the second embodiment of the present utility model. Unlike the previous embodiment, this embodiment provides: the slide rail assembly 1 includes a slide rail seat 101, the outer wall of the slide rail seat 101 is provided with a first limiting slide groove 102, the outer wall of the slide rail seat 101 is provided with a second limiting slide groove 103, and the outer wall of the slide rail seat 101 is provided with a locking hole 104.
[0045] Specifically, there are multiple locking holes 104 that are equidistant from each other, and the inner wall of the locking hole 104 is engaged with one end of the locking rod 2041.
[0046] In summary, the slide rail assembly 1, with its first limiting slide groove 102 and second limiting slide groove 103, facilitates the limiting sliding effect between the slide rail assembly 1 and the slide block 201. The locking hole 104 allows for flexible locking with the locking rod 2041, thus improving the usability of the device and providing convenience for the user.
[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0048] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A self-locking device, characterized in that: The slide rail assembly (1) is slidably connected to the outer wall of the slide rail assembly (1). The self-locking assembly (2) includes a slide block (201), a roller (203) is provided on the inner wall of the slide block (201), a suspension hole is provided at the bottom of the slide block (201), a locking mechanism (204) is provided on the inner wall of the slide block (201), a control mechanism (202) is provided on the inner wall of the slide block (201), and a locking block (205) is fixedly connected to the outer wall of the slide block (201). The control mechanism (202) includes a vertical slider (2021), a first return spring (2022) is fixedly connected to the bottom of the vertical slider (2021), a top plate (2023) is fixedly connected to the outer wall of the vertical slider (2021), and a pull rope (2024) is fixedly connected to the outer wall of the top plate (2023). The locking mechanism (204) includes a locking rod (2041), a second reset spring (2042) is fixedly connected to the outer wall of the locking rod (2041), and a connecting slider (2043) is fixedly connected to one end of the locking rod (2041). The slide rail assembly (1) includes a slide rail base (101), the outer wall of which is provided with a first limiting groove (102), the outer wall of which is provided with a second limiting groove (103), and the outer wall of which is provided with a locking hole (104).
2. The self-locking device according to claim 1, characterized in that: The longitudinal slider (2021) has protrusions fixedly connected to both sides, and the inner wall of the slide block (201) has a longitudinal sliding groove. The outer wall of the longitudinal slider (2021) and the protrusions are slidably connected to the inner wall of the longitudinal sliding groove, and the bottom of the first return spring (2022) is fixedly connected to the inner wall of the longitudinal sliding groove.
3. The self-locking device according to claim 2, characterized in that: The pull rope component (2024) includes two pull ropes, upper and lower, and a retaining ring is fixedly connected between the two pull ropes. The inner wall of the retaining ring is engaged with the outer side of the locking block (205).
4. The self-locking device according to claim 3, characterized in that: One end of the locking rod (2041) is fixedly connected to a horizontal sliding plate, and the outer wall of the horizontal sliding plate is fixedly connected to one end of the second reset spring (2042).
5. The self-locking device according to claim 4, characterized in that: The inner wall of the slide block (201) is provided with a horizontal sliding groove, the locking mechanism (204) is provided on the inner wall of the horizontal sliding groove, and the end of the second reset spring (2042) away from the locking rod (2041) is fixedly connected to the inner wall of the horizontal sliding groove.
6. The self-locking device according to claim 5, characterized in that: The bottom of the inner wall of the top plate (2023) is chamfered, and the end of the connecting slider (2043) away from the second reset spring (2042) is chamfered. The outer wall of the connecting slider (2043) is in close contact with the inner wall of the top plate (2023).
7. The self-locking device according to claim 6, characterized in that: The inner wall of the slide (201) is provided with a bearing, and the inner wall of the slide (201) is movably connected to the outer wall of the roller (203) through the bearing.
8. The self-locking device according to claim 7, characterized in that: The number of locking holes (104) is multiple and they are equidistant from each other. The inner wall of the locking hole (104) is engaged with one end of the locking rod (2041).