Self-locking pull rope clamp

Abstract

The utility model discloses a self-locking pull rope wire clamp, and belongs to the technical field of wire clamps. The wire clamp comprises a wire clamp body, a U-shaped bolt matched with a through hole of the wire clamp body, and a wedge arranged in a wedge-shaped hole of the wire clamp body in a penetrating manner. A first threaded section and a second threaded section which are opposite in spiral direction are arranged at the top of the U-shaped bolt and connected with the positioning nut and the locking nut respectively, and an anti-loosening mechanism is arranged on the adjacent surfaces of the locking nut and the positioning nut. The pull rope has the advantages that opposite acting force is generated when the positioning nut and the locking nut are screwed down through the reversely-arranged threaded sections, the nuts are effectively prevented from loosening under the working conditions of vibration and the like, and the fixing stability and safety of the pull rope are improved; the anti-loosening mechanism and the reverse threads cooperate to form double anti-loosening guarantee, the service life of the cable clamp is prolonged, the maintenance cost is reduced, and the fixing reliability of the pull rope is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of wire clamp technology, specifically to a self-locking pull rope wire clamp. Background Technology

[0002] In fields such as power, communications, and hoisting, pull rope clamps are key components for securing pull ropes, and their performance directly affects the safety and stability of the system. Traditional pull rope clamps typically use U-bolts and nuts to fasten the clamp body to the pull rope. Tightening the nut clamps the pull rope to achieve a secure hold.

[0003] However, existing pull rope clamps have many problems in practical use. On the one hand, under long-term vibration and external impact conditions, the nut is prone to loosening, leading to pull rope fixation failure and posing a safety hazard. On the other hand, the U-bolt with a single-direction thread can only apply pressure to the clamp body through the tightening force of the nut, resulting in limited tightening effect and making it difficult to meet the needs of some scenarios with high requirements for pull rope fixation reliability. Therefore, there is an urgent need for a self-locking pull rope clamp that can effectively prevent nut loosening and enhance the tightening effect to solve the shortcomings of existing technologies. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model provides a self-locking pull rope clamp.

[0005] The technical solution adopted by this utility model is: a self-locking pull rope clamp, including a clamp body, a U-bolt that mates with a through hole on the clamp body, and a wedge that passes through a wedge-shaped hole in the clamp body. The top of the U-bolt is provided with a threaded section one and a threaded section two, the helical directions of the threaded section one and the threaded section two are opposite. A positioning nut is threadedly connected to the threaded section one, and a locking nut is threadedly connected to the threaded section two.

[0006] An anti-loosening mechanism is provided on the surface adjacent to the locking nut and the positioning nut.

[0007] Furthermore, the length of the first threaded segment is less than or equal to the thread length of the positioning nut.

[0008] Furthermore, the first thread segment and the second thread segment are continuously arranged.

[0009] Furthermore, the outer ring of the wedge is provided with a winding groove, and the side of the winding groove is provided with a number of protrusions at intervals.

[0010] Furthermore, the protrusions are elliptical in structure.

[0011] Furthermore, the anti-loosening mechanism includes a wedge-shaped strip one on the surface of the locking nut and a wedge-shaped strip two on the surface of the positioning nut, wherein the inclined surfaces on the wedge-shaped strip one and the inclined surfaces on the wedge-shaped strip two are arranged in opposite directions.

[0012] Furthermore, the slopes of the inclined surfaces on the first wedge and the second wedge are set differently.

[0013] Furthermore, the slope of the inclined surface on the first wedge is 2-6°, and the slope of the inclined surface on the second wedge is 4-8°.

[0014] The beneficial effects of this utility model are:

[0015] First, the threaded sections one and two on the top of the U-bolt have opposite spiral directions, which causes the positioning nut and the locking nut to generate opposing forces when tightened. This mutually restraining structure can effectively prevent the nut from loosening under long-term vibration, external impact and other working conditions, which greatly improves the stability and safety of the rope fixing and avoids the safety hazards caused by the failure of the rope fixing due to the loosening of the nut.

[0016] Secondly, the anti-loosening mechanism set on the adjacent surfaces of the locking nut and the positioning nut further enhances the anti-loosening performance. It works in conjunction with the reverse thread structure to form a double anti-loosening guarantee, effectively extending the service life of the self-locking pull rope clamp, reducing maintenance costs and replacement frequency, and bringing higher economic benefits and safety guarantees for practical applications.

[0017] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a structural diagram of a U-bolt.

[0021] Figure 3 This is a schematic diagram of the wedge structure.

[0022] Figure 4 for Figure 1 Enlarged diagram of point A in the middle.

[0023] Figure 1-4 In the middle: 1. Wire clamp body; 2. U-bolt; 3. Wedge; 4. Thread section one; 5. Thread section two; 6. Positioning nut; 7. Locking nut; 8. Winding groove; 9. Protrusion; 10. Wedge bar one; 11. Wedge bar two; 12. Inclined surface. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] This utility model provides a self-locking pull rope clamp.

[0027] In this embodiment, refer to Figure 1-4 The self-locking pull rope clamp includes a clamp body 1, a U-bolt 2 that mates with a through hole on the clamp body 1, and a wedge 3 that passes through a wedge-shaped hole in the clamp body. The top of the U-bolt is provided with a first threaded section 4 and a second threaded section 5. The helical directions of the first threaded section 4 and the second threaded section 5 are opposite. A positioning nut 6 is threadedly connected to the first threaded section 4, and a locking nut 7 is threadedly connected to the second threaded section 5.

[0028] An anti-loosening mechanism is provided on the surface adjacent to the locking nut and the positioning nut.

[0029] In the above technical solution, the top of the U-bolt is provided with two threaded sections with opposite helical directions, so that the positioning nut and the locking nut generate opposing forces when tightened, restraining each other; the anti-loosening mechanism provided on the adjacent surfaces of the locking nut and the positioning nut further prevents the nuts from loosening. This effectively prevents the nuts from loosening under conditions such as vibration and external impact, enhancing the stability and safety of the rope fixing; the opposing pressure of the double threaded sections can improve the anti-loosening effect, and the anti-loosening mechanism works in conjunction with the reverse threads to form a double anti-loosening guarantee, extending the service life of the clamp and reducing maintenance costs.

[0030] Specifically, the length of the first threaded segment is less than or equal to the thread length of the positioning nut.

[0031] In this embodiment, the length of the first thread segment is less than or equal to the thread length of the positioning nut, ensuring that the positioning nut can completely cover the first thread segment. This facilitates the positioning nut being pressed and limited by the clamping nut, ensuring that pressure can be applied stably during tightening, and preventing the positioning nut from falling out of the effective tightening range due to the excessive length of the thread segment.

[0032] Specifically, thread segment one and thread segment two are arranged consecutively.

[0033] In this embodiment, thread segment one and thread segment two are continuously arranged to ensure the continuity of the thread structure on the U-bolt, so that the positioning nut and locking nut are subjected to more uniform and stable force during the tightening process, and the force transmission is smoother.

[0034] Specifically, the outer ring of the wedge is provided with a winding groove 8, and the side of the winding groove 8 is provided with a number of protrusions 9 at intervals.

[0035] In this embodiment, a winding groove is provided on the outer ring of the wedge to provide winding space for the pull rope and increase the contact area between the pull rope and the wedge; the protrusions provided at intervals on the side of the winding groove increase the friction between the pull rope and the wedge and prevent the pull rope from sliding in the winding groove.

[0036] Specifically, the protrusion has an elliptical structure.

[0037] In this embodiment, the protrusion adopts an elliptical structure. Compared with other shapes, the elliptical protrusion provides sufficient friction when it comes into contact with the pull rope, while avoiding damage to the pull rope due to sharp edges and corners, thus protecting the pull rope while ensuring the anti-slip effect.

[0038] Specifically, the anti-loosening mechanism includes a wedge-shaped strip 10 on the surface of the locking nut and a wedge-shaped strip 11 on the surface of the positioning nut, wherein the inclined surfaces on the wedge-shaped strip 1 and the inclined surfaces on the wedge-shaped strip 2 are arranged in opposite directions.

[0039] In this embodiment, the inclined surfaces of wedge strip one and wedge strip two in the anti-loosening mechanism face opposite directions. When the positioning nut and the locking nut are tightened, the two wedge strips interlock with each other. The friction and mutual squeezing between the inclined surfaces prevent the nuts from rotating relative to each other, thus achieving anti-loosening and effectively preventing the nuts from loosening, thereby improving the stability and safety of the rope fixing.

[0040] Specifically, the slopes of the inclined surfaces on wedge one and wedge two are set differently.

[0041] In this embodiment, the anti-loosening mechanism is enhanced by a differentiated slope design, effectively preventing the positioning nut and locking nut from loosening under complex working conditions, and ensuring that the pull rope clamp maintains a stable tightness during long-term use.

[0042] Specifically, the slope of the inclined surface on the first wedge is 2-6°, and the slope of the inclined surface on the second wedge is 4-8°.

[0043] In this embodiment, the slope of the first wedge is limited to 2-6°, and the slope of the second wedge is limited to 4-8°. This angle range can ensure that the two wedges can generate sufficient friction and squeezing force to prevent loosening when they are engaged, and can also avoid the nut being difficult to tighten or disassemble due to excessive slope.

[0044] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A self-locking pull rope clamp, comprising a clamp body, a U-bolt that mates with a through hole on the clamp body, and a wedge inserted into a wedge-shaped hole in the clamp body, characterized in that: The top of the U-bolt is provided with a threaded section one and a threaded section two, the helical directions of the threaded section one and the threaded section two are opposite, a positioning nut is threadedly connected to the threaded section one, and a locking nut is threadedly connected to the threaded section two. An anti-loosening mechanism is provided on the surface adjacent to the locking nut and the positioning nut.

2. The self-locking pull cord clamp according to claim 1, characterized in that: The length of the first threaded segment is less than or equal to the thread length of the positioning nut.

3. The self-locking pull cord clamp according to claim 1, characterized in that: The first threaded section and the second threaded section are arranged consecutively.

4. The self-locking pull cord clamp according to claim 1, characterized in that: The outer ring of the wedge is provided with a winding groove, and the side of the winding groove is provided with a number of protrusions at intervals.

5. The self-locking pull cord clamp according to claim 4, characterized in that: The protrusions are elliptical in structure.

6. The self-locking pull cord clamp according to claim 1, characterized in that: The anti-loosening mechanism includes a wedge-shaped strip one on the surface of the locking nut and a wedge-shaped strip two on the surface of the positioning nut, wherein the inclined surfaces of the wedge-shaped strip one and the wedge-shaped strip two are arranged in opposite directions.

7. The self-locking pull cord clamp according to claim 6, characterized in that: The slopes of the inclined surfaces on wedge one and wedge two are set differently.

8. The self-locking pull cord clamp according to claim 6, characterized in that: The slope of the inclined surface on the first wedge is 2-6°, and the slope of the inclined surface on the second wedge is 4-8°.

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