CN113451968A

CN113451968A - Cable fixer

Info

Publication number: CN113451968A
Application number: CN202110790666.1A
Authority: CN
Inventors: 王阳光
Original assignee: Hangzhou Jieshang Smart Grid Technology Co ltd
Current assignee: Hangzhou Jieshang Smart Grid Technology Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-09-28
Anticipated expiration: 2041-07-13
Also published as: CN113451968B

Abstract

The invention provides a cable fixer, and relates to the technical field of electric power safety. The insulator fixing device comprises a clamping component for connecting an insulator and a fixing component for fixing a cable, wherein the fixing component is connected with the clamping component. The high-altitude cable fixing device is convenient for workers to fixedly install a high-altitude cable on the insulator, so that the working efficiency is improved, and the service life of the cable is prolonged.

Description

Cable fixer

Technical Field

The invention relates to the technical field of electric power safety, in particular to a cable fixer.

Background

At present, in the process of erecting a high-voltage line, generally, a binding mode is adopted to connect an insulator on a tower pole in a power transmission line with a cable. Taking a P6 insulator as an example, the top end of the insulator is provided with a cable groove, and when connecting cables, the cables need to be placed in the groove first and then are bound and fixed by thin wires. The binding mode not only wastes time and labor in the process of connecting the cable and the insulator at high altitude by workers, but also increases the operation intensity of the workers and reduces the working efficiency; in the operation afterwards, the cable is easy to be ablated at the binding position of the insulator, so that the service life of the cable is shortened, and the cable is easy to separate from the insulator to cause safety accidents.

Disclosure of Invention

The invention aims to provide a cable fixer which can facilitate workers to fixedly install a high-altitude cable on an insulator, improve the working efficiency and prolong the service life of the cable.

The embodiment of the invention is realized by the following steps:

the embodiment provides a cable fixer, and it is connected with above-mentioned joint subassembly including the joint subassembly that is used for connecting the insulator and the fixed subassembly that is used for fixed cable, above-mentioned fixed subassembly.

In some embodiments of the present invention, the clamping assembly includes a fixed snap ring, a fixed seat connected to one end of the fixed snap ring, and a movable snap ring hinged to the fixed snap ring, one end of the movable snap ring is inserted into the fixed seat, and the fixed assembly is connected to the fixed seat.

In some embodiments of the present invention, the movable snap ring is provided with a latch, the fixed seat is provided with a chute, and the chute is provided with a lock tooth unidirectionally matched with the latch.

In some embodiments of the present invention, the lock device further includes a locking assembly disposed in the fixing base, the locking assembly includes a spring and a locking rack bar engaged with the latch, the fixing base is provided with an installation cavity communicated with the chute, and the locking rack bar is installed in the installation cavity through the spring.

In some embodiments of the present invention, the locking assembly further includes a shift lever, the fixing base is provided with a limiting groove communicated with the mounting cavity, one end of the shift lever is connected to the locking rack, and the other end of the shift lever is a handheld end.

In some embodiments of the invention, the fixing assembly includes a fixing clip, the fixing clip is U-shaped, an opening of the fixing clip faces the fixing base, and one end of the fixing clip is connected to the fixing base.

In some embodiments of the present invention, the fixing clip further includes a bolt and a wing nut matched with the bolt, two ends of the fixing clip are respectively provided with a connecting hole communicated with each other, and the bolt penetrates through the connecting hole and is connected with the wing nut.

In some embodiments of the present invention, the fixing assembly includes a first preformed wire for winding the cable, and the first preformed wire is connected to the clamping assembly.

In some embodiments of the invention, there are two first preformed screws, and the two first preformed screws are respectively connected to the left and right sides of the clamping component.

In some embodiments of the present invention, the clamping assembly further comprises a second preformed wire for winding the cable, wherein the second preformed wire is connected with the clamping assembly.

Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:

the embodiment of the application provides a cable fixer, and it is including the fixed subassembly that is used for connecting the joint subassembly of insulator and is used for fixed cable, and fixed subassembly is connected with the joint subassembly. The clamping assembly comprises a fixed clamping ring and a movable clamping ring, the fixed clamping ring and the movable clamping ring jointly form a limiting cavity used for wrapping the top of the insulator and firmly fixing the insulator on the insulator; the fixing assembly is fixedly connected to the clamping assembly and comprises a U-shaped fixing clamp, the U-shaped fixing clamp is used for limiting the cable in the U-shaped groove, so that the cable is not separated from the fixer, the connection between the cable and the insulator can be instantly completed through the clamping assembly and the fixing assembly, time and labor are saved, and the working efficiency is greatly improved; in addition, the fixing assembly also comprises a preformed armor rod, and because the linear distance between every two telegraph poles is about 50 meters, the cable can generate pulling force on the insulator between the two telegraph poles due to the self gravity, so that the cable fixed on the insulator is forced to slide; in order to prevent the cable from sliding, the cable is wound on the preformed armor rods, so that the cables on two sides of the insulator are firmly fixed on the insulator.

When the cable fixing clamp is actually used, a worker firstly places a cable in a cable groove at the top of the insulator, then clamps the cable into the U-shaped fixing clamp, reduces an opening of the U-shaped fixing clamp by rotating the butterfly nut, and stably fixes the cable in the fixing clamp; and winding the cable on the preformed armor rods, and finally butting and clamping the fixed clamping ring and the movable clamping ring at the top of the insulator to complete installation. Or the cable is wound on the preformed armor rods firstly, then the cable is clamped into the U-shaped fixing clamp, and finally the installation is finished.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.

FIG. 1 is a schematic view of the overall construction of the cable holder of the present invention;

FIG. 2 is a schematic structural view of a fixing member according to the present invention;

FIG. 3 is a schematic view of the connection structure of the locking assembly of the present invention;

FIG. 4 is a cross-sectional view of the latch assembly of the present invention;

FIG. 5 is a schematic structural view of example 6;

fig. 6 is a back sectional view of fig. 5.

Icon: 1. a clamping assembly; 11. fixing the snap ring; 12. a movable snap ring; 13. a fixed seat; 2. a fixing assembly; 21. a fixing clip; 22. a bolt; 23. a butterfly nut; 201. a first preformed armor rod; 202. second preformed armor rods; 3. a locking assembly; 31. a spring; 32. a lock rack; 33. a deflector rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the products of the present invention are used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and therefore, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "mounted" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a cable fixer, which includes a clamping component 1 for connecting an insulator and a fixing component 2 for fixing a cable, wherein the fixing component 2 is connected to the clamping component 1.

In this embodiment, the entire cable holder is made of butadiene rubber. Butadiene rubber is the second largest synthetic rubber second to styrene-butadiene rubber, and compared with natural rubber and styrene-butadiene rubber, the butadiene rubber has the advantages of particularly excellent cold resistance, wear resistance and elasticity after vulcanization, less heat generation under dynamic load, good aging resistance and easy combination with natural rubber, chloroprene rubber or nitrile rubber. The butadiene rubber is especially suitable for manufacturing automobile tires and cold-resistant products, and can also be used for manufacturing buffer materials, various rubber shoes, adhesive tapes, sponge rubbers and the like. The product made of the butadiene rubber material can reduce the erosion of rainwater to the product in the external environment due to being in the outdoor sun and rain environment for a long time, and is not easy to lose the fastening and connecting functions due to degradation and oxidation. In some other embodiments, ethylene propylene rubber or isoprene rubber may also be used. Compared with the traditional binding mode adopting metal binding wires, the electromagnetic induction type cable binding device can avoid the phenomenon that the surface of a cable is ablated due to the fact that a coil formed by the metal binding wires generates induction current and generates large heat.

The clamping assembly 1 is composed of two semicircular clamping rings with the same diameter, each semicircular clamping ring is of a semi-cylindrical structure, a cavity is formed in each semicircular clamping ring, one of the semicircular clamping rings is a fixed clamping ring 11, the other semicircular clamping ring is a movable clamping ring 12, and the left end of the fixed clamping ring 11 and the right end of the movable clamping ring 12 are hinged to each other to form a limiting cavity together for wrapping the top of the insulator; the right end of the fixed snap ring 11 is connected with a fixed seat 13, the side wall of the fixed seat 13 is provided with a sliding groove, when the two semicircular snap rings are combined together, the left end of the movable snap ring 12 can be conveniently clamped in along the sliding groove direction, and therefore the insulator can be firmly fixed on the insulator. A fixing component 2 is fixedly connected to the clamping component 1, the fixing component 2 comprises a U-shaped fixing clip 21 for limiting a cable, the opening direction of the U-shaped fixing clip 21 faces the direction of the fixing seat 13 (the opening direction of the U-shaped fixing clip 21 is parallel to the axis direction of a ring formed by the fixing snap ring 11 and the movable snap ring 12 together), and one end of the U-shaped fixing clip 21 is connected with the side wall on the fixing seat 13; when the movable snap ring 12 is not clamped into the chute, the opening of the U-shaped fixing clamp 21 is in an open state; when the movable clamp ring 12 is clamped into the sliding groove, the opening of the U-shaped fixing clamp 21 is in a closed state, so that the cable is limited in the U-shaped groove and is not separated from the cable fixer, the connection between the cable and the insulator can be instantly completed through the clamping component 1 and the fixing component 2, time and labor are saved, and the working efficiency is greatly improved.

In this embodiment, all adopt the fillet to handle at each edges and corners of U type fixation clamp 21, can reduce the friction between cable and the fixation clamp 21 edges and corners like this, prevent to cause the damage to the cable, improve the security and the reliability of power supply greatly. Particularly in the coastal area, if the edge angle of the fixing clip 21 is a sharp angle, the wind force is large, and the swing amplitude of the lead is large, the insulating layer of the cable is damaged by the fixing clip 21, so that the aging of the insulating layer of the cable is accelerated.

In actual use, please refer to fig. 4, a worker first places a cable in a cable groove at the top of the insulator, then inserts the cable into the U-shaped fixing clamp 21, and rotates the butterfly nut 23 to reduce the opening of the U-shaped fixing clamp 21, so as to firmly fix the cable in the fixing clamp 21; and finally, the fixed snap ring 11 and the movable snap ring 12 are butted and clamped at the top of the insulator to finish the installation.

In this embodiment, there are two U-shaped fixing clips 21, one U-shaped fixing clip 21 is connected to the fixing base 13, the other U-shaped fixing clip 21 is connected to the fixing ring 11, the opening directions of the two U-shaped fixing clips 21 face the same direction, the two U-shaped fixing clips 21 are respectively located on the left and right sides of the insulator, and the cable can be more stably connected through the two U-shaped fixing clips 21.

Example 2

Referring to fig. 1 and 5, the present embodiment provides the following technical solutions based on embodiment 1: the movable snap ring 12 is provided with a latch, the fixed seat 13 is internally provided with a chute, and the chute is internally provided with a lock tooth which is in one-way fit with the latch.

In this embodiment, be equipped with the latch on the left end lateral wall of activity snap ring 12, be equipped with the lock tooth in the spout of fixing base 13, when the latch of activity snap ring 12 was meshed with the lock tooth, activity snap ring 12 then can't withdraw from outward to the spout, can only remove to the spout, can reduce the diameter of spacing cavity like this, firmly fixes this cable fixer at the top of insulator, prevents that it from droing.

Example 3

Referring to fig. 3, the present embodiment provides the following technical solutions based on embodiment 1: still including locating locking subassembly 3 in the fixing base 13, locking subassembly 3 includes spring 31 and the lock rack 32 with latch matched with, is equipped with the installation cavity that is linked together with the spout in the fixing base 13, and lock rack 32 passes through spring 31 to be installed in the installation cavity.

In this embodiment, be equipped with the installation cavity that is linked together with the spout in fixing base 13 inside, install spring 31 and lock rack 32 in this installation cavity, lock rack 32 is equipped with one side of tooth towards the spout direction, the one end of spring 31 is connected with the installation cavity lateral wall, the other end of spring 31 is connected with lock rack 32, spring 31 can play the effect of elastic support to lock rack 32, make lock rack 32 closely mesh with the latch of activity snap ring 12 mutually, strengthen lock rack 32 to the locking function of latch.

Example 4

Referring to fig. 3 and fig. 4, the present embodiment provides the following technical solutions based on embodiment 3: the locking assembly 3 further comprises a shifting rod 33, a limiting groove communicated with the mounting cavity is formed in the fixing seat 13, one end of the shifting rod 33 is connected with the locking rack 32, and the other end of the shifting rod 33 is a handheld end.

In this embodiment, the spacing groove that is linked together with the installation cavity is seted up at the lower lateral wall of fixing base 13, the one end of driving lever 33 is passed the spacing groove and is connected with lock rack 32, driving lever 33 can slide along the route of spacing groove, when needs are dismantled this cable fixer from the insulator, the user can remove lock rack 32 to keeping away from the spout direction through driving lever 33 with the hand, make lock rack 32 and the latch phase separation of activity snap ring 12, be convenient for like this take out activity snap ring 12 from the spout, it provides very big facility to overhaul and maintain for subsequent cable.

Example 5

Referring to fig. 1 to 4, the present embodiment provides the following technical solutions based on embodiment 1: the fixing clamp further comprises a bolt 22 and a butterfly nut 23 matched with the bolt 22, connecting holes communicated with each other are formed in the two ends of the fixing clamp 21, and the bolt 22 penetrates through the connecting holes to be connected with the butterfly nut 23.

In this embodiment, the two ends of the U-shaped fixing clip 21 are respectively provided with a connecting hole, the bolt 22 penetrates through the two connecting holes and then is in threaded connection with the wing nut 23, and the wing nut 23 slowly forces the opening of the U-shaped fixing clip 21 to be smaller in the process of rotating rightwards, so that the cable can be firmly fixed in the U-shaped groove, and the cable is prevented from moving in the length direction due to self gravity.

In some other embodiments, the inside wall of the U-shaped fixing clip 21 is provided with grains and strip-shaped grains, so that the friction between the cable and the U-shaped fixing clip 21 can be increased, and the slipping phenomenon between the cable and the U-shaped fixing clip 21 can be avoided; secondly, the appearance can be improved, and the purchasing desire of purchasers can be attracted.

In some other embodiments, the texture can be wave-shaped or small convex particles, so that consumers can select the texture from various choices to meet different requirements.

Example 6

Referring to fig. 5, the present embodiment provides the following technical solutions based on embodiment 1: the fixing component 2 comprises a first preformed armor rod 201 for winding the cable, and the first preformed armor rod 201 is connected with the clamping component 1.

In this embodiment, since the linear distance between every two poles is about 50 meters, the cable will pull on the insulator between the two poles due to its own weight, forcing the cable fixed on the insulator to slide; in order to prevent the cable from sliding, the fixing component 2 may employ the first preformed helical wire 201, and the first preformed helical wire 201 may be spirally wound by using an aluminum alloy material, which facilitates mass production of the first preformed helical wire 201. Two first preformed armor rods 201 with the length of 30 centimeters are connected to the left side and the right side of the clamping assembly 1 through bolts 22. During the use, only need with fixed snap ring 11 and the joint of activity snap ring 12 in the insulator head jointly, then the cable winding is on first preformed armor rod 201 again, just so makes the cable that is located insulator both sides firmly fixed on the insulator. With fixed snap ring 11 and first preformed armor rod 201 demountable installation, the constructor of being convenient for carries and assembles. In actual manufacturing, the manufacturer may also directly integrate the first preformed armor rods 201 with the fixing clasp 11.

In some other embodiments, the first preformed helical thread 201 may be installed on only one side of the fixed seat 13.

In some other embodiments, referring to fig. 6, the first preformed helical wire 201 may be formed by winding an aluminum alloy material, and a middle portion of the first preformed helical wire 201 may pass through the outer casing and be hidden in the fixing clasp 11; therefore, the first preformed armor rods 201 can cross over the side face of the insulator, attractiveness can be guaranteed, the cable can be fixed, the cable is prevented from being separated from the insulator, meanwhile, the cable is wound on the first preformed armor rods 201, the pulling force of the cable pulling device on the cable is improved, the cable is prevented from drooping due to self gravity, and potential safety hazards are eliminated.

Example 7

Referring to fig. 1, the present embodiment provides the following technical solutions based on embodiment 5: and a second preformed helical wire 202 for winding the cable, wherein the second preformed helical wire 202 is connected with the clamping assembly 1.

In this embodiment, the second preformed helical wire 202 connected to the fixing clasp 11 is added to the solution of embodiment 5, and under the combined action of the U-shaped fixing clip 21 and the second preformed helical wire 202, the movement of the cable in the length direction due to its own weight is further limited, and no movement occurs even if the cable is influenced by wind.

Example 8

The present embodiment proposes, based on the technical solutions of embodiment 6 or embodiment 7: the first preformed armor rods 201 and/or the second preformed armor rods 202 are/is sleeved with a protective sleeve.

In this embodiment, a protective sleeve made of a silicone rubber material is sleeved on the first preformed armor rod 201 and/or the second preformed armor rod 202. The silicone rubber has: (1) the high-temperature stability is that although the strength of the silicon rubber at normal temperature is only half of that of natural rubber or some synthetic rubber, the silicon rubber can still keep certain flexibility, rebound resilience and surface hardness under the high-temperature environment of more than 200 ℃, and the mechanical property is not obviously changed. Therefore, the aluminum alloy can be protected from being corroded by rainwater, and the cable can be protected from being ablated by the aluminum alloy under the irradiation of sunlight. (2) The Si-O-Si bond in the weather-resistant silicone rubber is very stable to oxygen, ozone, ultraviolet rays and the like, and has excellent weather resistance without adding any additive. So that the protective sleeve can cope with extreme weather. (3) Electrical performance. The silicon rubber has excellent insulating property, and is very good in corona resistance and arc resistance. Therefore, the safety of constructors in the installation process can be ensured, and safety accidents are avoided.

In summary, the embodiment of the present invention provides a cable fixer, which includes a clamping component 1 for connecting an insulator and a fixing component 2 for fixing a cable, wherein the fixing component 2 is connected to the clamping component 1. The clamping assembly 1 comprises a fixed clamping ring 11 and a movable clamping ring 12, wherein the fixed clamping ring 11 and the movable clamping ring 12 jointly form a limiting chamber which is used for wrapping the top of the insulator and can firmly fix the clamping assembly on the insulator; the fixing component 2 is fixedly connected to the clamping component 1, the fixing component 2 comprises a U-shaped fixing clamp 21, and the U-shaped fixing clamp 21 is used for limiting the cable in a U-shaped groove, so that the cable is not separated from the fixer, the connection between the cable and the insulator can be instantly completed through the clamping component 1 and the fixing component 2, time and labor are saved, and the working efficiency is greatly improved; in addition, the fixing assembly 2 further comprises a preformed armor rod, and since the linear distance between every two electric poles is about 50 meters, the cable can generate pulling force on the insulator between the two electric poles due to the self-gravity, so that the cable fixed on the insulator is forced to slide; in order to prevent the cable from sliding, the cable is wound on the preformed armor rods, so that the cables on two sides of the insulator are firmly fixed on the insulator.

During actual use, a worker firstly places a cable in a cable groove at the top of the insulator, then clamps the cable into the U-shaped fixing clamp 21, reduces an opening of the U-shaped fixing clamp 21 by rotating the butterfly nut 23, and stably fixes the cable in the fixing clamp 21; and winding the cable on the preformed armor rods, and finally butting and clamping the fixed clamping ring 11 and the movable clamping ring 12 at the top of the insulator to complete installation. Or the cable is wound on the preformed armor rods firstly, then the cable is clamped into the U-shaped fixing clamp 21, and finally the installation is finished.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable holder, its characterized in that: including the fixed subassembly that is used for connecting the joint subassembly of insulator and is used for fixed cable, fixed subassembly with the joint subassembly is connected.

2. The cable holder according to claim 1, wherein: the clamping assembly comprises a fixed clamping ring, a fixed seat connected with one end of the fixed clamping ring, and a movable clamping ring hinged with the fixed clamping ring, one end of the movable clamping ring is inserted into the fixed seat, and the fixed assembly is connected with the fixed seat.

3. The cable holder according to claim 2, wherein: the movable snap ring is provided with a latch, the fixed seat is internally provided with a chute, and the chute is internally provided with a lock tooth which is in one-way fit with the latch.

4. The cable holder according to claim 3, wherein: still including locating locking assembly in the fixing base, locking assembly include the spring and with latch matched with lock rack, be equipped with in the fixing base with the installation cavity that the spout is linked together, lock rack pass through spring mounting in the installation cavity.

5. The cable holder according to claim 4, wherein: the locking assembly further comprises a shifting rod, a limiting groove communicated with the mounting cavity is formed in the fixing seat, one end of the shifting rod is connected with the locking rack, and the other end of the shifting rod is a handheld end.

6. The cable holder according to any one of claims 2 to 5, wherein: the fixing assembly comprises a fixing clamp, the fixing clamp is U-shaped, an opening of the fixing clamp faces the fixing seat, and one end of the fixing clamp is connected with the fixing seat.

7. The cable holder according to claim 6, wherein: the fixing clamp is characterized by further comprising a bolt and a butterfly nut matched with the bolt, connecting holes communicated with each other are formed in the two ends of the fixing clamp, and the bolt penetrates through the connecting holes and is connected with the butterfly nut.

8. The cable holder according to any one of claims 2 to 5, wherein: the fixing assembly comprises a first preformed armor rod used for winding a cable, and the first preformed armor rod is connected with the clamping assembly.

9. The cable holder according to claim 7, wherein: still including the second preformed armor rods that is used for twining the cable, the second preformed armor rods with the joint subassembly is connected.