A double-bit locking structure and a slope protection net with the same
By adopting a double-locking structure in the slope protection net, and using the snap-locking between the bendable part and the positioning protrusion, the problems of loosening and slippage at the connection point in the existing technology are solved, and a more stable connection effect is achieved.
Patent Information
- Application Number
- CN202521942919.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-10
AI Technical Summary
The existing steel wire rope connection points of the slope protection net have insufficient fastening force due to discontinuous threaded connections, making them prone to loosening. Furthermore, the impact of falling rocks can easily cause the threaded connections to slip or loosen, posing a safety hazard.
It adopts a double-locking structure, including a lower locking part, a positioning protrusion, a positioning groove, an internal thread, and a bendable part. The bendable part cooperates with the positioning protrusion and engages with the positioning groove to form a secondary locking structure, which restricts the rotation of the fastener and enhances the connection stability.
It improves the connection stability of the slope protection net, prevents loosening and slippage, enhances the resistance to rockfall impact, and ensures the long-term effectiveness of the connection points.
Smart Images

Figure CN224678708U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slope protection technology, and in particular to a double-locking structure and a slope protection net having the same. Background Technology
[0002] Slope protection nets are generally used on the slopes of mountains or roads that need reinforcement or protection. The flexible net is tensioned and covered on the slope by anchor bolts, or it is set on the side of the mountain that is prone to landslides to form a protective layer, which restricts the deformation and movement of the surface rock and soil and prevents the dangers caused by small-scale peeling, rockfall and shallow sliding.
[0003] In existing technologies, the steel wire ropes in slope protection nets are connected in both horizontal and vertical directions, with the connection points secured by connectors or locking structures. However, these connectors or locking structures are formed by segmented threaded connections; in practical use, the discontinuous thread path results in insufficient tightening force, or causes localized deformation or warping of the base bearing the thread, reducing thread friction and creating a risk of loosening. Furthermore, the instantaneous impact load from falling rocks can easily cause irreversible slippage or loosening of the threaded connection, leading to connection point failure. Utility Model Content
[0004] The purpose of this utility model is to provide a double-locking structure and a slope protection net having the same, so as to solve the above-mentioned technical problems. To achieve the above objective, this utility model proposes the following technical solution:
[0005] A double-locking structure includes a lower locking part, positioning protrusions, positioning grooves, internal threads, and fasteners. The positioning protrusions are fixedly connected to the upper side of the lower locking part and are integrally formed. The top view projection of the lower locking part is circular. There are four positioning protrusions, which are evenly distributed on the lower locking part. Adjacent positioning protrusions form receiving grooves, and the four receiving grooves constitute the positioning groove. The inner sides of the four positioning protrusions that are close to each other are provided with internal threads, which are engaged with the fasteners. The structure also includes a bendable part. The four bendable parts are evenly distributed on the outer side of the top of the fastener. Each bendable part includes a locking part one and a locking part two. The locking part one and the locking part two are integrally stamped. The locking part one is a concave-convex structure with high sides and low middle. The middle concave part of the locking part one constitutes the locking part two. After the fastener is connected to the internal thread, the bendable part can be bent toward the lower locking part, so that the locking part one engages with the outer side of the adjacent positioning protrusion, and the locking part two is inserted into the positioning groove to achieve a locking effect.
[0006] Furthermore, the four positioning protrusions are set at the same height;
[0007] Furthermore, an end cap is coaxially fixedly connected to the top of the fastener. The top view of the end cap is circular, and the top of the end cap is provided with a hexagonal groove for connecting with an installation tool.
[0008] Furthermore, the bendable parts are evenly distributed and fixedly connected to the outside of the end cap, and the width of the locking part one is greater than the width of the receiving groove, while the width of the protrusion structure of the locking part two is less than the opening width of the receiving groove.
[0009] Furthermore, the vertical depths of adjacent receiving grooves are not equal, while the vertical depths of the receiving grooves along the direction of the steel wire rope are equal, in order to accommodate steel wire ropes that are distributed at different heights.
[0010] Furthermore, this utility model provides a slope protection net, wherein the slope protection net adopts any of the above-mentioned double-position locking structures.
[0011] By adopting the above technical solution, compared with the prior art, this utility model has the following beneficial effects:
[0012] The bendable portion bends towards the lower locking portion, causing the first locking portion to engage with the outer side of the adjacent positioning protrusion, thus locking it to the outer side of the positioning protrusion. The second locking portion also engages inside the positioning groove. This creates a tight connection between the bendable portion and the lower locking portion, restricting the rotation of the fastener and forming a secondary locking structure. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the assembly structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the exploded structure of this utility model.
[0016] Figure label:
[0017] 1. Lower locking part; 2. Positioning protrusion; 3. Positioning groove; 4. Internal thread; 5. Wire rope; 6. End cap; 7. Hexagonal groove; 8. Side fin; 9. Locking part one; 10. Locking part two; 11. Fastener. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] like Figures 1-3 As shown, a double-position locking structure includes a lower locking part 1, positioning protrusions 2, positioning grooves 3, internal threads 4, and fasteners 11. The positioning protrusions 2 are fixedly connected to the upper side of the lower locking part 1, and the two are integrally formed. The projected top view of the lower locking part 1 is circular. There are four positioning protrusions 2, which are evenly distributed on the lower locking part 1. Adjacent positioning protrusions 2 form receiving grooves, and the four receiving grooves constitute the positioning groove 3. The four positioning protrusions 2 are mutually... The fastener 11 is provided with internal threads 4 on its inner side, which engage with the fastener 11. It also includes four bendable portions 8 evenly distributed on the outer side of the top of the fastener 11. Each bendable portion 8 includes a locking portion 9 and a locking portion 10, which are integrally stamped. The locking portion 9 has a concave-convex structure with higher sides and a lower middle section, and the middle concave section of the locking portion 9 constitutes the locking portion 10. After the fastener 11 is engaged with the internal threads 4, the bendable portion 8 can be bent towards the lower locking portion 1, allowing the locking portion 9 to engage with the outer side of the adjacent positioning protrusion 2, and the locking portion 10 to engage with the positioning groove 3 for locking.
[0021] Furthermore, the four positioning protrusions 2 are set at the same height;
[0022] Furthermore, an end cap 6 is coaxially fixedly connected to the top of the fastener 11. The top view projection of the end cap 6 is circular, and the top of the end cap 6 is provided with a hexagonal groove 7 for connecting with an installation tool.
[0023] Furthermore, the bendable parts 8 are evenly distributed and fixedly connected to the outside of the end cap 6, and the width of the locking part 1 9 is greater than the width of the receiving groove, while the width of the protruding structure of the locking part 2 10 is less than the opening width of the receiving groove.
[0024] Furthermore, the vertical depths of adjacent receiving grooves are not equal, while the vertical depths of the receiving grooves along the direction of the steel wire rope are equal, in order to accommodate the steel wire ropes 5 that are distributed at different heights.
[0025] Furthermore, this utility model provides a slope protection net, wherein the slope protection net adopts any of the above-mentioned double-position locking structures.
[0026] Specifically: Two steel wire ropes 5 are placed perpendicularly into the positioning grooves 3 in the lower locking part 1. The positioning protrusion 2 isolates the two steel wire ropes 5. The fastener 11 is connected to the internal thread 4 to press the steel wire ropes 5 together. When the bottom side of the end cap 6 abuts against the top side of the positioning protrusion 2, the bendable part 8 is positioned corresponding to the positioning groove 3. The bendable part 8 is bent downwards using a bending fixture, causing the locking part 1 9 to bend towards the outer side of the positioning protrusion 2, and the locking part 2 10 to fit into the positioning groove 3. The locking part 2 10 and the positioning groove 3 engage to lock the fastener 11, preventing it from rotating. At the same time, the locking part 1 9 wraps around and locks the outer side of the positioning protrusion 2, further strengthening the fastening force.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A double-position locking structure, comprising a lower locking part (1), a positioning protrusion (2), a positioning groove (3), an internal thread (4), and a fastener (11), wherein the positioning protrusion (2) is fixedly connected to the upper side of the lower locking part (1), and the two are integrally formed; the projected plan view of the lower locking part (1) is circular; the number of positioning protrusions (2) is four, which are evenly arranged on the lower locking part (1); adjacent positioning protrusions (2) form receiving grooves; the four receiving grooves constitute the positioning groove (3); the inner sides of the four positioning protrusions (2) that are close to each other are provided with internal threads (4); the internal threads (4) are engaged with the fastener (11); characterized in that: It also includes a bendable part (8), four of which are evenly distributed on the outer side of the top of the fastener (11). Each bendable part (8) includes a locking part one (9) and a locking part two (10). The locking part one (9) and the locking part two (10) are integrally stamped structures. The locking part one (9) is a concave-convex structure with high sides and low middle. The middle concave part of the locking part one (9) constitutes the locking part two (10). After the fastener (11) is connected with the internal thread (4), the bendable part (8) can be bent towards the lower locking part (1), so that the locking part one (9) cooperates with the outer side of the adjacent positioning protrusion (2), and the locking part two (10) is inserted into the positioning groove (3) to play a locking role.
2. The double-position locking structure according to claim 1, characterized in that: The top of the fastener (11) is coaxially fixedly connected to an end cap (6). The top view projection of the end cap (6) is circular. The top of the end cap (6) is provided with a hexagonal groove (7) for connecting with an installation tool.
3. The double-position locking structure according to claim 2, characterized in that: The bendable part (8) is evenly distributed and fixedly connected to the outside of the end cap (6), and the width of the locking part one (9) is greater than the width of the receiving groove, and the width of the protrusion structure of the locking part two (10) is less than the opening width of the receiving groove.
4. A slope protection net, wherein the slope protection net adopts the double-locking structure as described in any one of claims 1-3.