Self-locking shockproof hammer

The combination of the self-locking anti-vibration hammer's threaded design and the anti-slip portion solves the problem of the anti-vibration hammer loosening due to vibration of overhead wires, achieving a more stable cable connection and reducing the risk of falling off.

CN223428123UActive Publication Date: 2025-10-10YUNNAN POWER GRID CO LTD NUJIANG POWER SUPPLY BUREAU
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Patent Information

Application Number
CN202422484312.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-10-10
Estimated Expiration
2034-10-14

AI Technical Summary

Technical Problem

Overhead wires vibrate under external forces such as wind and thermal expansion and contraction, causing the shock absorbers to loosen and possibly fall off, resulting in line damage or personal injury.

Method used

A self-locking shock-absorbing hammer is designed. A screw is divided into a sleeve part, a first threaded part, and a second threaded part. A nut is designed with opposite thread directions. The locking part cooperates with the connecting part to form a stable gap to fix the cable. An anti-slip part is provided on the surface of the nut to increase friction and improve connection stability.

Benefits of technology

It effectively reduces the probability of the nut falling, improves the connection stability between the cable and the shock-absorbing hammer, prevents loosening and falling off, and reduces the risk of damage to the line and equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a self-locking shockproof hammer. The self-locking shockproof hammer comprises a connecting piece, a locking piece and a screw, the screw is arranged on the connecting piece and comprises a sleeving part, a first thread part and a second thread part; the sleeving part, the first thread part and the second thread part are sequentially connected, and threads of the first thread part and threads of the second thread part are opposite; the locking piece is arranged on the sleeving part, a cable is clamped between the connecting piece and the locking piece, the first thread part is provided with a first nut, and the second thread part is provided with a second nut. The self-locking stockbridge damper can reduce the falling risk of the stockbridge damper.
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Description

Technical Field

[0001] The utility model relates to the field of shock-proof hammers, in particular to a self-locking shock-proof hammer. Background Art

[0002] To connect the terminals of two overhead conductors, a vibration damper is typically installed to secure the terminals and maintain electrical connection. However, once the conductors are in the air, they are subject to wind, thermal expansion, and other external forces, which can cause them to vibrate. This vibration is then transmitted to the vibration damper, loosening the connection between the hammer and the conductor. This can cause the damper to shift, potentially damaging the line or even falling off, injuring personnel and damaging equipment. Utility Model Content

[0003] In view of this, the present invention provides a self-locking shock-proof hammer, which can reduce the risk of the shock-proof hammer falling.

[0004] The utility model provides the following technical solutions: a self-locking anti-vibration hammer, comprising: a connecting piece, a locking piece, and a screw;

[0005] The screw is arranged on the connecting member, and comprises a sleeve portion, a first threaded portion, and a second threaded portion; the sleeve portion, the first threaded portion, and the second threaded portion are connected in sequence, wherein the threads of the first threaded portion and the second threaded portion are opposite;

[0006] The locking piece is arranged on the sleeve portion, a cable is sandwiched between the connecting piece and the locking piece, the first threaded portion is provided with a first nut, and the second threaded portion is provided with a second nut.

[0007] Furthermore, an anti-slip portion is provided on a surface of the second nut facing the first nut.

[0008] Furthermore, the length of the second threaded portion is greater than the length of the first threaded portion.

[0009] Furthermore, a first through hole penetrating the screw is provided at one end of the second threaded portion away from the sleeve portion, and an axis of the first through hole is perpendicular to an axis of the screw.

[0010] Furthermore, the locking piece is movably provided on the sleeve portion, and the locking piece can move along the length direction of the screw.

[0011] Furthermore, it also includes: a pad;

[0012] The cushion block is arranged on the sleeve portion, one side of the cushion block abuts against the locking member, and the other side of the cushion block abuts against the first nut.

[0013] Furthermore, the connecting member includes: a limiting portion, a fixing portion, and a connecting portion;

[0014] The limiting portion, the fixing portion, and the connecting portion are connected in sequence; wherein, the limiting portion has a groove for accommodating a cable, the screw is arranged on the fixing portion, and the connecting portion is provided with a hammer head assembly.

[0015] Furthermore, the hammer assembly includes a steel strand and a polarized hammer;

[0016] The steel strand is arranged at the connection portion, and the steel strand extends to two sides away from the connection portion. Both ends of the steel strand are provided with polarization hammers.

[0017] Furthermore, the connecting portion is provided with a second through hole penetrating the connecting piece along the first direction, the steel strand is provided in the second through hole, and the midpoint of the steel strand coincides with the midpoint of the second through hole.

[0018] Furthermore, the polarization hammer head is a tuning fork anti-vibration hammer.

[0019] The self-locking shock-absorbing hammer in the utility model is provided with a screw on the connecting piece, and the screw is divided into a sleeve portion, a first threaded portion, and a second threaded portion. The locking piece is passed through the screw and fixed to the sleeve portion. After the locking piece is sleeved on the screw, the locking piece cooperates with the connecting piece to form a gap that can be used to fix the cable. After the cable is installed in the gap, the first nut is first installed on the screw rod, and then the second nut is installed on the second threaded portion. Since the threads of the first threaded portion and the second threaded portion are opposite, when the second nut rotates, the second nut drives the first nut to rotate in the opposite direction, or when the first nut rotates, the first nut drives the second nut to rotate in the opposite direction, so that the two nuts can be in a relatively stable state, which can reduce the probability of the nuts falling off. At the same time, since the thread directions of the first threaded portion and the second threaded portion are opposite, when the first nut rotates to the intersection with the second threaded portion, the first nut will be restricted from moving, which can prevent the first nut from falling off and improve the stability of the connection between the cable and the shock-absorbing hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the implementation. Obviously, the drawings described below are some implementations of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 One of the partial structural diagrams of the self-locking anti-vibration hammer provided by an embodiment of the utility model;

[0022] Figure 2 A structure schematic view of the self-locking shockproof hammer and the screw is provided for the embodiment of the utility model;

[0023] Figure 3 A structure schematic view of the second nut is provided for the embodiment of the utility model;

[0024] Figure 4 A structure schematic view of the connecting piece is provided for the embodiment of the utility model;

[0025] Figure 5 A structure schematic view of the self-locking shockproof hammer is provided for the embodiment of the utility model;

[0026] Figure 6 A structure schematic view of the self-locking shockproof hammer is provided for the embodiment of the utility model.

[0027] Mark explanation:

[0028] 100-self-locking shockproof hammer;10-connecting piece;11-limiting part;111-groove;12-fixing part;13-connecting part;131-second through hole;20-locking piece;30-screw;31-sleeving part;32-first threaded part;33-second threaded part;34-first nut;35-second nut;351-anti-skid part;352-first through hole;40-pad;50-hammer head assembly;51-steel strand;52-polarized hammer head;60-cable. Specific implementation

[0029] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] The terms "first", "second" and the like in the description and claims of the utility model and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed or can optionally include other steps or units inherent to the process, method, product or device.

[0031] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present invention. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] To connect the terminals of two overhead conductors, an overhead conductor connector is typically installed to secure the terminals and maintain electrical connection. However, once the conductors are in the air, they are subject to wind, thermal expansion, and other external forces, which can cause vibrations in the overhead conductors. This can loosen the connection, causing the anti-vibration hammer to shift, potentially damaging the line or even falling off, injuring personnel and damaging equipment.

[0033] In view of this, the present embodiment provides a self-locking shock-proof hammer 100. The self-locking shock-proof hammer 100 can reduce the risk of the self-locking shock-proof hammer 100 falling.

[0034] See also Figure 1 and Figure 2 , a self-locking shock-proof hammer 100, comprising: a connecting member 10, a locking member 20, and a screw 30;

[0035] The screw 30 is provided on the connecting member 10 and includes a sleeve portion 31, a first threaded portion 32, and a second threaded portion 33. The sleeve portion 31, the first threaded portion 32, and the second threaded portion 33 are connected in sequence, wherein the threads of the first threaded portion 32 and the second threaded portion 33 are opposite to each other.

[0036] The locking member 20 is disposed on the sleeve portion 31 , a cable 60 is sandwiched between the connector 10 and the locking member 20 , a first nut 34 is disposed on the first threaded portion 32 , and a second nut 35 is disposed on the second threaded portion 33 .

[0037] The self-locking shock-absorbing hammer 100 of the present invention is provided with a screw 30 on the connecting member 10, and the screw 30 is divided into a sleeve portion 31, a first threaded portion 32, and a second threaded portion 33. By passing the locking member 20 through the screw 30 and fixing it to the sleeve portion 31, when the locking member 20 is sleeved on the screw 30, the locking member 20 cooperates with the connecting member 10 and forms a gap for fixing the cable 60. After the cable 60 is installed in the gap, the first nut 34 is first installed on the screw rod, and then the second nut 35 is installed on the second threaded portion 33. Since the threads of the first threaded portion 32 and the second threaded portion 33 are opposite; therefore, When the second nut 35 rotates, the second nut 35 drives the first nut 34 to rotate in the same direction. However, since the threaded portions of the first thread and the second thread are opposite, when the first thread is locked, the second thread is unlocked, and when the first thread is unlocked, the second thread is locked, which can reduce the probability of the nut falling off. At the same time, since the thread directions of the first threaded portion 32 and the second threaded portion 33 are opposite, when the first nut 34 rotates to the intersection with the second threaded portion 33, the first nut 34 will be restricted from moving, thereby preventing the first nut 34 from falling off and improving the stability of the connection between the cable 60 and the self-locking shock-absorbing hammer 100.

[0038] It can be understood that a screw 30 is provided on the connecting member 10, and the screw 30 is divided into a sleeve portion 31, a first threaded portion 32, and a second threaded portion 33, wherein the sleeve portion 31 is located at the portion closest to the connecting member 10, and the first threaded portion 32 and the second thread are arranged at the same time toward the portion away from the connecting member 10; the locking member 20 is fixedly provided on the sleeve portion 31, and in order to fix the locking member 20, a first nut 34 is installed on the screw 30, and the first nut 34 is adapted to the first thread, so that the locking member 20 can be fixed to the screw rod through the first nut 34, and before fixing the first nut 34, the cable 60 is installed between the locking member 20 and the connecting member 10, so that after the first nut 34 is installed on the first threaded portion 32, the locking member 20 and the connecting member 10 can cooperate to fix the cable 60. After the first nut 34 is installed on the first threaded portion 32, the second nut 35 is installed on the second threaded portion 33 so that the second nut 35 limits the movement of the first nut 34. This can prevent the first nut 34 from falling and improve the stability of the connection between the cable 60 and the self-locking shock-absorbing hammer 100.

[0039] See also Figure 3 In some embodiments, a surface of the second nut 35 facing the first nut 34 is provided with an anti-slip portion 351 .

[0040] It can be understood that an anti-slip portion 351 is provided on the surface of the second nut 35 facing the first nut 34. The anti-slip portion 351 can be set to a tooth shape, a square shape, etc., so that a greater friction force can be generated between the first nut 34 and the second nut 35, thereby effectively preventing the nut from loosening due to vibration.

[0041] It can be understood that an anti-slip portion 351 is provided on the surface of the second nut 35 facing the first nut 34. The anti-slip portion 351 can be set to a tooth shape, a square shape, etc., so that a greater friction force can be generated between the first nut 34 and the second nut 35, thereby effectively preventing the nut from loosening due to vibration. The anti-slip portion 351 provided on the surface of the second nut 35 can also drive the first nut 34 to move to a certain extent. This is because the first nut 34 and the second nut 35 are in abutment with each other when assembled, and the friction between the anti-slip portion 351 of the second nut 35 and the first nut 34 is relatively large. Therefore, when the first nut 34 is rotated clockwise to unlock, the second nut 35 is rotated clockwise to lock, or when the first nut 34 is rotated clockwise to lock, the second nut 35 is rotated clockwise to unlock. For example: when the first nut 34 is rotated in the unlocking direction, due to the presence of the anti-slip portion 351, the first nut 34 will drive the second nut 35 to rotate in the locking direction, thereby slowing down the time for the first nut 34 and the second nut 35 to loosen when subjected to vibration, thereby improving the stability of the self-locking shock-absorbing hammer 100.

[0042] See also Figure 2 In some embodiments, the length of the second threaded portion 33 is greater than the length of the first threaded portion 32 .

[0043] It can be understood that the length of the second threaded portion 33 is greater than the length of the first threaded portion 32. This is because the positions of the two nuts on the bolt are different when the first nut 34 and the second nut 35 are installed on different wire diameters. At this time, the length of the second threaded portion 33 is greater than the length of the first threaded portion 32, so that the excess length can be used for distance compensation.

[0044] See also Figure 2 In some embodiments, a first through hole 352 passing through the screw 30 is provided at one end of the second threaded portion 33 away from the sleeve portion 31 , and the axis of the first through hole 352 is perpendicular to the axis of the screw 30 .

[0045] It can be understood that a first through hole 352 is provided at the end of the second threaded portion 33 away from the sleeve portion 31, which passes through the screw 30, and the axis of the first through hole 352 is provided perpendicular to the axis of the screw 30, that is, the end of the screw 30 is provided with a first through hole 352, and a fixing member can be provided in the first through hole 352. By installing the fixing member in the first through hole 352, the first nut 34 and the second nut 35 can be further limited, so as to improve the stability of the self-locking shock-absorbing hammer 100.

[0046] See also Figure 1 In some embodiments, the locking member 20 is movably disposed on the sleeve portion 31 , and the locking member 20 can move along the length direction of the screw 30 .

[0047] It can be understood that the locking member 20 is movably set in the sleeve portion 31, so that the locking member 20 can adapt to cables of different sizes when cooperating with the connecting member 10. When the diameter of the cable is large, the locking member 20 can be moved farther away from the connecting member 10. When the diameter of the cable is small, the locking member 20 can be moved closer to the connecting member 10, thereby achieving the purpose of improving the applicability of the self-locking shock-absorbing hammer 100.

[0048] See also Figure 5 , in some embodiments, further comprising: a spacer 40;

[0049] The spacer block 40 is disposed on the sleeve portion 31 . One side of the spacer block 40 abuts against the locking member 20 , and the other side of the spacer block 40 abuts against the first nut 34 .

[0050] It can be understood that a spacer 40 is further provided between the first nut 34 and the locking member 20. The spacer 40 can buffer the first nut 34 and the locking member 20, and the spacer 40 is adapted to the shape of the locking member 20 so that the spacer 40 can better fix the locking member 20.

[0051] In some embodiments, the connecting member 10 includes: a limiting portion 11, a fixing portion 12, and a connecting portion 13;

[0052] The limiting portion 11, the fixing portion 12, and the connecting portion 13 are connected in sequence; wherein, the limiting portion 11 has a groove 111, the groove 111 is used to accommodate the cable 60, the screw 30 is arranged on the fixing portion 12, and the connecting portion 13 is provided with a hammer head assembly 50.

[0053] It can be understood that the connecting member 10 includes: a limiting portion 11, a fixing portion 12, and a connecting portion 13; wherein the limiting portion 11 is provided with a groove 111, the groove 111 can effectively accommodate the cable 60, and the groove 111 cooperates with the locking member 20 to fix the cable 60 on the self-locking shock-proof hammer 100, thereby preventing the cable 60 from sliding or displacing when subjected to external force; the fixing portion 12 is provided with a screw 30, and the locking member 20 can be installed on the screw 30, and the locking member 20 can be quickly and firmly installed with the connecting member 10, and the connecting portion 13 can be used to connect the hammer head assembly 50, which facilitates the installation of the hammer head assembly 50; this not only reduces the complexity of the structure, but also reduces the difficulty of maintenance, while also improving the durability of the connecting member 10.

[0054] In some embodiments, the hammer assembly 50 includes a steel strand 51 and a polarizing hammer 52;

[0055] The steel strand 51 is disposed on the connection portion 13 , and extends to two sides away from the connection portion 13 . Polarization hammers 52 are disposed on both ends of the steel strand 51 .

[0056] It can be understood that the hammer head assembly 50 includes: a steel strand 51, a polarization hammer head 52, and a polarization hammer head 52 is provided at both ends of the steel strand 51. The polarization hammer heads 52 are fixed at both ends of the steel strand 51. The polarization hammer heads 52 provided at both ends of the steel strand 51 can help to evenly distribute the load and reduce stress concentration, thereby improving the tensile strength of the steel strand 51; the polarization hammer head 52 can also make the overall structure of the self-locking shock-proof hammer 100 more rigid, and can effectively resist external bending and torsional forces.

[0057] See also Figure 4 and Figure 5 In some embodiments, the connecting portion 13 is provided with a second through hole 131 passing through the connecting member 10 along the first direction, the steel strand 51 is arranged in the second through hole 131, and the midpoint of the steel strand 51 coincides with the midpoint of the second through hole 131.

[0058] As can be understood, the steel strand 51 can be conveniently and accurately installed by cooperating with the second through hole 131, greatly reducing errors during the installation process and improving production efficiency. Furthermore, the midpoint of the steel strand 51 is aligned with the midpoint of the second through hole 131, ensuring that the steel strand 51 can evenly distribute the force when subjected to force, reducing stress concentration, effectively improving the overall strength and stability of the structure, and also improving the durability and fatigue resistance of the connecting portion 13.

[0059] See also Figure 6 In some embodiments, the polarization hammer head 52 is a tuning fork self-locking anti-vibration hammer 100 .

[0060] It can be understood that setting the polarization hammer head 52 as a tuning fork shock-proof hammer can reduce the vibration frequency of the self-locking shock-proof hammer 100. Specifically, the tuning fork shock-proof hammer utilizes the inherent frequency characteristics of the tuning fork structure. By setting the frequency of the tuning fork shock-proof hammer to the same frequency as the vibration of the cable 60, when the cable vibrates, the tuning fork also vibrates at the same time, so that the tuning fork can effectively absorb and suppress external vibration energy, reduce the impact of vibration on the first nut 34 or the second nut 35, extend the service life of the equipment, reduce the impact of high-frequency vibration on the connecting part 13, and improve the stability of the self-locking shock-proof hammer 100.

[0061] Mentioning "embodiments" and "implementation methods" in this utility model means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the utility model. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this utility model can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the various embodiments of this utility model can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of this utility model, provided that there is no contradiction between them.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the above preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A self-locking shock-absorbing hammer, characterized in that: include: Connectors, locking parts, screws; The screw is arranged on the connecting member, and comprises a sleeve portion, a first threaded portion, and a second threaded portion; the sleeve portion, the first threaded portion, and the second threaded portion are connected in sequence, wherein the threads of the first threaded portion and the second threaded portion are opposite; The locking piece is arranged on the sleeve portion, a cable is sandwiched between the connecting piece and the locking piece, the first threaded portion is provided with a first nut, and the second threaded portion is provided with a second nut.

2. The self-locking anti-shock hammer according to claim 1, characterized in that: An anti-slip portion is provided on a surface of the second nut facing the first nut.

3. The self-locking anti-shock hammer according to claim 1, characterized in that: The length of the second threaded portion is greater than the length of the first threaded portion.

4. The self-locking anti-shock hammer according to claim 3, characterized in that: A first through hole penetrating the screw is provided at one end of the second threaded portion away from the sleeve portion, and an axis of the first through hole is perpendicular to the axis of the screw.

5. The self-locking anti-shock hammer according to claim 1, characterized in that: The locking piece is movably arranged on the sleeve portion, and the locking piece can move along the length direction of the screw.

6. The self-locking anti-shock hammer according to claim 5, characterized in that: Also includes: Pads; The cushion block is arranged on the sleeve portion, one side of the cushion block abuts against the locking member, and the other side of the cushion block abuts against the first nut.

7. The self-locking anti-shock hammer according to claim 1, characterized in that: The connecting piece includes: a limiting part, a fixing part, and a connecting part; The limiting portion, the fixing portion, and the connecting portion are connected in sequence; wherein, the limiting portion has a groove for accommodating a cable, the screw passes through the fixing portion, and the connecting portion is provided with a hammer head assembly.

8. The self-locking anti-shock hammer according to claim 7, characterized in that: The hammer assembly includes a steel strand and a polarization hammer; The steel strand is arranged at the connection portion, and the steel strand extends to two sides away from the connection portion. Both ends of the steel strand are provided with polarization hammers.

9. The self-locking anti-shock hammer according to claim 8, characterized in that: The connecting portion is provided with a second through hole penetrating the connecting member along the first direction, the steel strand is arranged in the second through hole, and the midpoint of the steel strand coincides with the midpoint of the second through hole.

10. The self-locking anti-shock hammer according to claim 8, characterized in that: The polarization hammer head is a tuning fork anti-vibration hammer.