Spiral cable support periodically arranged clockwise and anticlockwise and installation method thereof

Abstract

The invention discloses a spiral cable support periodically arranged clockwise and anticlockwise and an installation method thereof, and relates to the technical field of communication cable supports, the spiral cable support comprises a spiral line frame wound on a cable, and the spiral line frame is formed by connecting a plurality of clockwise spiral line segments and anticlockwise spiral line segments which are spirally arranged; the outer layer of the spiral line frame is wrapped with a wrapping layer; the terminal clamp is used for connecting the plurality of spiral line frames; due to the spiral structural design of the spiral coil holder, the spiral coil holder has large contact area and friction force, a plurality of optical cables can be effectively fixed, and the cables are prevented from sliding and shifting. Meanwhile, uniform distribution and fixation of the cables are achieved through the spiral shape periodically arranged clockwise and anticlockwise, the support can adapt to the shapes and diameters of different cables, tight attachment of the support and the cables is achieved, meanwhile, cable distortion and damage can be avoided, friction and vibration of lines are reduced, the service life of the cables is prolonged, and signal transmission stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication cable brackets, and in particular to a spiral cable bracket arranged in a clockwise and counterclockwise periodic pattern and an installation method thereof. Background Art

[0002] In the traditional installation process of overhead line communication cables, traditional hooks are often used for cable bundling and load-bearing operations. However, traditional hooks have problems such as complex operation and high safety risks. In order to solve the problems of traditional hooks, some load-bearing brackets use steel wire ropes or flat strip materials as supporting materials. These brackets can achieve bundling and load-bearing by fixing communication cables on the supporting materials. In addition, some brackets also use adjustable length supporting materials to meet the needs of different cable lengths.

[0003] These solutions have solved the problems of complex operation and high safety risks of traditional hooks to a certain extent. However, there are still some problems and limitations with the load-bearing brackets in the prior art. First, the brackets using steel wire ropes or flat strip materials as support materials are not rigid enough, making it difficult to achieve uniform load-bearing on communication cables. Secondly, these brackets require tools to be adjusted, which is relatively cumbersome to operate and not convenient and quick enough. In addition, most of these brackets are bilaterally operated and require two people to collaborate for installation, which increases the safety risks of aerial operations. Finally, these brackets cannot effectively organize multiple installed communication cables.

[0004] To sum up, although the bracket in the prior art has solved the problems of traditional hooks to a certain extent, it still has problems such as poor rigidity and load-bearing uniformity, complex operation, high safety risks, and inability to effectively organize multiple installed communication cables. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the above-mentioned technologies and to propose a spiral cable bracket with a clockwise and counterclockwise periodic arrangement and an installation method thereof, in order to solve the above-mentioned problems.

[0006] The present invention provides a spiral cable support arranged in a clockwise and counterclockwise periodic manner and an installation method thereof, comprising a spiral wire rack wound on a cable, the spiral wire rack being formed by connecting a plurality of clockwise spiral wire segments and counterclockwise spiral wire segments arranged in a spiral shape; the outer layer of the spiral wire rack is wrapped with a wrapping layer; and a terminal clamp for connecting a plurality of spiral wire racks. Each clockwise spiral wire segment rotates two times clockwise, and each counterclockwise spiral wire segment rotates two times counterclockwise, and the clockwise spiral wire segment and the counterclockwise spiral wire segment are connected at the inflection to form an inflection portion of a V-shaped structure.

[0007] Preferably, the terminal clamp comprises connecting plate 1, connecting plate 2 and connecting bolts, connecting plate 1 is provided with a clockwise pressing groove for connecting the clockwise spiral segment, connecting plate 2 is provided with a counterclockwise pressing groove for the counterclockwise spiral segment, through holes are provided at both ends of connecting plate 1 and connecting plate 2, and the connecting bolts pass through the through holes and are connected to the nuts to press the ends of the clockwise spiral segment and the counterclockwise spiral segment into connecting plate 1 and connecting plate 2.

[0008] The utility model also comprises an openable and closable wire-sleeving mechanism, which is slidably sleeved on the cable and the spiral wire rack, and a guide protrusion for pushing the spiral wire rack to roll into the cable is arranged in the wire-sleeving mechanism.

[0009] Preferably, the thread-threading mechanism comprises a shell one, a shell two and a locking assembly, wherein the shell one is hinged to the shell two, and the guide protrusion is arranged on the inner ring of the shell one; the locking assembly is arranged on the shell one and the shell two to lock the thread-threading mechanism after closing; and the shell one and the shell two are provided with a turning handle for rotating the thread-threading mechanism.

[0010] The locking assembly includes a semicircular block, a locking sleeve and a round rod with a notch. The round rod is connected to one end of the housing one, the semicircular block is connected to one end of the housing two, the locking sleeve is slidably arranged on the round rod, a spring is arranged on the round rod, and the spring abuts against a limit ring in the locking sleeve; the housing one is closed with the housing two to make the semicircular block fit into the notch on the round rod, and the locking sleeve slides to fit with the semicircular block under the push of the spring.

[0011] A method for installing a spiral cable bracket arranged in a clockwise and counterclockwise periodic manner comprises the following steps:

[0012] Step 1: Determine the initial location of the communication cable where the spiral cable rack needs to be erected;

[0013] Step 2: Pull out the spiral wire rack of the same length along the initial position of the communication cable. In order to ensure the stability of the spiral wire rack, a specific wire sleeve mechanism can be used to control the magnitude and uniformity of the pulling force;

[0014] Step 3: The construction personnel use the cable sleeve mechanism to insert the communication cable into the spiral cable rack;

[0015] Step 4: The length of each spiral wire rack is limited. When the construction length is long, use the terminal clamp to fasten the two spiral wire racks together;

[0016] Step 5: When the spiral wire rack is installed to the end position, use a cutting tool to cut the spiral wire rack and wrap the end of the spiral wire rack with a heat shrink tube;

[0017] Step 6: After installation, verify the signal transmission quality of the communication cable by using test equipment.

[0018] Preferably, when determining the initial position of the communication cable where the spiral wire rack needs to be installed, first calculate the total weight based on the known length, diameter, and material size parameters of the cable to be installed; select a spiral wire rack of appropriate length based on the actual weight of the cable, and estimate the weight of the cable using the estimation formula m=L*S*ρ;

[0019] Among them, m is the weight of the cable, kg

[0020] L——The length of the cable that needs to be installed, mS——The total cross-sectional area of ​​the cables that need to be tied, mm2

[0021] Ρ——cable density, which is a weighted average value based on the types of cables on site.

[0022] Perform force analysis on the shape of the fulcrums for hanging cables to obtain the bearing capacity of each fulcrum for hanging cables;

[0023] OXYZ is the Cartesian three-dimensional inertial coordinate system, Pxyz is the Frenet coordinate system, P is a force point on the spiral frame, and x, y, z are the main axis coordinate systems. Considering the balance of the active cable in the PP' micro-element arc segment, under the state of force balance, the simplified vector and moment of each force at point P must be zero. Then only the first-order small quantities of each force are considered and derived from the tangent vector definition:

[0024]

[0025] F--The superposition action vector of the cable at point P on the spiral wire rack

[0026] S--arc coordinates

[0027]

[0028] M--The superimposed torque applied by the cable to the P point of the spiral wire rack

[0029] T--tangent basis vector at point P

[0030] The spiral wire rack will generate torsion after being acted upon by the cable. The moment expression of the bracket in each direction in the Frenet coordinate system is expressed by the bending torsion ω:

[0031] M x =k x ω x

[0032] M y =k y ω y

[0033] M z =k z ω z

[0034] Where kx is the bending strength of the cross section of the spiral frame around the x-axis.

[0035] ky--bending strength of the cross section of the spiral frame around the y-axis

[0036] kz--bending strength of the cross section of the spiral frame around the z axis

[0037] Then the projection formula of formula (2) relative to Pxyz is:

[0038]

[0039] The above differential equation is the Kirchhoff equation describing the balance of the active cable. Fx, Fy and Fz are obtained according to the Kirchhoff equation.

[0040] Calculate the number of fulcrums based on the bearing capacity of each fulcrum for the mounted cables and the total weight of the mounted cables.

[0041] The total weight of the cable is G = mg

[0042] The Fz of each fulcrum is obtained by the Kirchhoff equation, and according to the laboratory test results, Fz≤300N can effectively prevent the deformation of the spiral wire rack. Therefore, according to the cable length, the number of fulcrums of the spiral wire rack is taken as N, and the number of N is determined by the following formula

[0043]

[0044] Compared with the prior art, it has the following beneficial effects:

[0045] 1. The spiral cable rack is composed of multiple segments arranged in a spiral shape, each of which has a spiral shape in both clockwise and counterclockwise directions. During installation, first pull the spiral cable rack along the already installed communication cables, and then use the characteristics of clockwise and counterclockwise periodic arrangement to insert multiple optical cables into the spiral cable rack to achieve rapid installation and construction.

[0046] 2. The combination of spiral design and tension control device ensures the stability and tension of the spiral wire rack, making the cable bundling more stable. The spiral design can adapt to the shape and diameter of different cables and achieve close fit between the bracket and the cable, while also avoiding cable twisting and damage, reducing friction and vibration of the line, and improving the service life of the cable and signal transmission stability.

[0047] 3. The spiral design enables the present invention to adapt to various communication cables of different lengths and thicknesses, has strong flexibility, and can meet various application scenarios and needs. At the same time, in order to meet the requirements of on-site construction, construction personnel can choose to use two or more cables to connect them according to the construction length of the communication cable. In order to facilitate connection and fixation, the terminal clamp is used so that the two spiral wire racks can be quickly and firmly connected together.

[0048] 4. The use of high-quality materials and high-strength steel core design ensures the strength and durability of the spiral cable rack. This reliability reduces the risk of cable breakage and damage and extends the service life of communication equipment.

[0049] 5. The present invention introduces a new design and technical solution in the field of communication cable bundling technology, realizing innovation and improvement of traditional technology. This innovation provides new ideas and solutions for the development of the communication industry and promotes the progress and development of related technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0051] Figure 1 It is a schematic diagram of the structure of the spiral wire rack of the present invention;

[0052] Figure 2 This is a force analysis diagram of the fulcrum for hanging cables of the present invention;

[0053] Figure 3 It is a structural schematic diagram of the wire sleeve mechanism and the spiral wire rack of the present invention;

[0054] Figure 4 It is a structural schematic diagram of the wire sleeve mechanism of the present invention;

[0055] Figure 5 It is a structural schematic diagram of the lock sleeve of the present invention;

[0056] Figure 6 It is a schematic structural diagram of the terminal clamp of the present invention.

[0057] In the figure, 1- spiral wire rack; 11- clockwise spiral wire segment; 12- counterclockwise spiral wire segment; 13- reflex portion; 2- terminal clamp; 21- connecting piece 1; 22- connecting piece 2; 23- connecting bolt; 24- clockwise pressing groove; 25- counterclockwise pressing groove; 3- threading mechanism; 31- casing 1; 32- casing 2; 33- locking assembly; 34- guide protrusion; 35- turning handle; 331- semicircular block; 332- locking sleeve; 333- round rod; 334- spring; 335- limiting ring. DETAILED DESCRIPTION

[0058] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows:

[0059] Example:

[0060] like Figures 1 to 6 As shown, the present invention provides a spiral cable support arranged in a clockwise and counterclockwise periodic manner and an installation method thereof, including a spiral wire rack 1 wound on the cable, the spiral wire rack 1 being connected by a plurality of spirally arranged clockwise spiral segments 11 and counterclockwise spiral segments 12; the outer layer of the spiral wire rack 1 is wrapped with a sheath, and the sheath is made of insulating rubber material. It also includes a terminal clamp 2 for connecting multiple spiral wire racks 1. The present application uses a specially designed spiral structure arranged in a clockwise and counterclockwise periodic manner, so that the spiral wire rack 1 can easily clip multiple communication cables into it, achieving a fast and stable bundling effect. This design makes full use of the mechanical properties of the spiral, so that the bundling wire has better tension and stability when fixing the cable. And through the combined structure arranged in a clockwise and counterclockwise periodic manner, the spiral wire rack 1 can be constructed on the communication cable that has been erected without taking any measures that affect the operation of the line.

[0061] Each clockwise spiral segment 11 rotates clockwise for two times, and each counterclockwise spiral segment 12 rotates counterclockwise for two times. The clockwise spiral segment 11 and the counterclockwise spiral segment 12 are connected at the inflection to form an inflection portion 13 of a V-shaped structure.

[0062] As another embodiment of the present application, Figure 6As shown, the terminal clamp 2 of the present application comprises a connecting piece 1 21, a connecting piece 22 and a connecting bolt 23. The connecting piece 1 21 is provided with a clockwise pressing groove 24 for connecting the clockwise spiral segment 11, and the connecting piece 2 22 is provided with a counterclockwise pressing groove 25 for the counterclockwise spiral segment 12. Through holes are provided at both ends of the connecting piece 1 21 and the connecting piece 2 22. The connecting bolt 23 passes through the through holes and is connected to the nut to press and connect the ends of the clockwise spiral segment 11 and the counterclockwise spiral segment 12 in the connecting piece 1 21 and the connecting piece 2 22. In order to facilitate the connection of two or more spiral wire racks 1, the two spiral wire racks 1 can be quickly and firmly connected together, thereby improving the installation efficiency. This quick-connect terminal clamp 2 reduces the installation time and simplifies the operation steps. The terminal clamp 2 of the present application is used to achieve a quick and firm connection of two or more tying wires.

[0063] The utility model also comprises an openable and closable wire-sleeving mechanism 3, which is slidably sleeved on the cable and the spiral wire rack 1, and a guide protrusion 34 for pushing the spiral wire rack 1 to be rolled into the cable is arranged inside the wire-sleeving mechanism 3, so that the spiral wire rack 1 can be pushed into the cable through the guide protrusion 34.

[0064] As another embodiment of the present application, Figures 3 to 5 As shown, the thread-threading mechanism 3 includes a sleeve shell 1 31, a sleeve shell 2 32 and a locking assembly 33. The sleeve shell 1 31 is hinged with the sleeve shell 2 32, and the guide protrusion 34 is arranged on the inner circle of the sleeve shell 1 31; the locking assembly 33 is arranged on the sleeve shell 1 31 and the sleeve shell 2 32 to lock the thread-threading mechanism 3 after closing; the sleeve shell 1 31 and the sleeve shell 2 32 are provided with a rotating handle 35 for rotating the thread-threading mechanism 3.

[0065] During the installation process, the construction personnel first pull the spiral wire rack 1 along the already installed communication cable to a certain length. Then, the spiral wire rack 1 is put on the communication cable by rotating the wire-sleeving mechanism 3 through the turning handle 35 and moving. Due to the difference between the clockwise spiral wire segment 11 and the counterclockwise spiral wire segment 12, the wire-sleeving mechanism 3 switches back and forth between clockwise and counterclockwise rotation during the movement on the cable to allow the guide protrusion 34 to guide the spiral wire rack 1 into the cable.

[0066] Furthermore, it also includes a wire clamp, which is an open and close sleeve structure, and is provided with a spiral groove therein for compressing the spiral wire rack 1, and is provided with a pre-tightening bolt, and an arc-shaped pressing piece is provided at the end of the bolt for compressing the cable; the wire clamp is closed by bolt connection. By providing the wire clamp, the end of the spiral wire rack 1 can be fixed on the cable, and the middle part of the spiral wire rack 1 can be fixed to adjust the spiral pitch of the spiral wire rack 1.

[0067] Specifically, the guide protrusion 34 of the present application rotates in the opposite direction to perform a guiding function when it moves to the inflection point where the clockwise spiral segment 11 and the counterclockwise spiral segment 12 are connected; at the same time, at the inflection point, the guide protrusion 34 can also be used to rotate the spiral wire rack 1 to tighten and fit the cable, and the spiral distance of the spiral wire rack 1 can be adjusted by rotation.

[0068] See also Figure 4 The locking assembly 33 of the present application includes a semicircular block 331, a locking sleeve 332 and a round rod 333 with a notch, the round rod 333 is connected to one end of the sleeve shell 1 31, the semicircular block 331 is connected to one end of the sleeve shell 2 32, the locking sleeve 332 is slidably arranged on the round rod 333, and a spring 334 is sleeved on the round rod 333, and the spring 334 abuts against the limit ring 335 in the locking sleeve 332; the sleeve shell 1 31 is closed with the sleeve shell 2 32 to make the semicircular block 331 fit into the notch on the round rod 333, and the locking sleeve 332 slides to be sleeved with the semicircular block 331 under the push of the spring 334, so as to unlock the locking sleeve 332 by sliding the locking sleeve 332 to make the locking sleeve 332 disengage from the semicircular block 331, and when the locking sleeve 332 is released, the locking sleeve 332 returns to its position under the action of the spring 334 to lock the closed sleeve shell 2 32. Furthermore, the spring 334 is sleeved in the annular groove of the round rod 333 , and a screw for limiting the spring 334 is threadedly connected to the end of the round rod 333 , the spring 334 abuts against the pin, and the limiting ring 335 is located in the annular groove.

[0069] A method for installing a spiral cable bracket arranged in a clockwise and counterclockwise periodic manner comprises the following steps:

[0070] Step 1: Determine the initial position of the communication cable where the spiral wire rack 1 needs to be erected;

[0071] Step 2: Pull the spiral wire rack 1 of the same length along the initial position of the communication cable. In order to ensure the stability of the spiral wire rack 1, a specific wire sleeve mechanism 3 is used to control the magnitude and uniformity of the pulling force;

[0072] Step 3: The construction personnel use the cable sleeve mechanism 3 to insert the communication cable into the spiral cable rack 1;

[0073] Step 4: The length of each spiral wire rack 1 is limited. When the construction length is long, two spiral wire racks 1 are fastened and connected using a terminal clamp 2;

[0074] Step 5: When the spiral wire rack 1 is installed to the end position, the cutting tool is used to cut the spiral wire rack 1, and the end of the spiral wire rack 1 is wrapped with a heat shrink tube;

[0075] Step 6: After installation, verify the signal transmission quality of the communication cable by using test equipment.

[0076] Preferably, when determining the initial position of the communication cable where the spiral wire rack 1 needs to be installed, first calculate the total weight based on the known length, diameter, and material size parameters of the cable to be installed; select a spiral wire rack 1 of appropriate length based on the actual weight of the cable, and estimate the weight of the cable using the estimation formula m=L*S*ρ;

[0077] Among them, m is the weight of the cable, kg

[0078] L——The length of the cable that needs to be installed, m

[0079] S——Total cross-sectional area of ​​cables to be tied, mm2

[0080] Ρ——cable density, which is a weighted average value based on the type of cables on site. Select corresponding parameters according to different cable materials, as shown in the following table:

[0081] Material Density kg / m3 Road Cable 1500 Power Cable 2700 Communication Cable 1000 Cable Tray 2700

[0082] like Figure 2 As shown, according to the force analysis of the shape of the fulcrum of the hanging cable, the bearing capacity of each fulcrum pair to the hanging cable is obtained;

[0083] OXYZ is the Cartesian three-dimensional inertial coordinate system, Pxyz is the Frenet coordinate system, P is a force point on the spiral frame 1, and x, y, z are the main axis coordinate systems. Considering the balance of the active cable in the PP' micro-element arc segment, under the state of force balance, the simplified vector and moment of each force at point P must be zero. Then only the first-order small quantities of each force are considered and derived from the tangent vector definition:

[0084]

[0085] F--The superposition action vector of the cable at point P on the spiral frame 1

[0086] S--arc coordinates

[0087]

[0088] M--The superimposed torque applied by the cable to the 1P point of the spiral wire rack

[0089] T--tangent basis vector at point P

[0090] The spiral wire rack 1 will generate torsion after being acted upon by the cable. The moment expression of the bracket in each direction in the Frenet coordinate system is expressed by the bending torsion ω:

[0091] M x =k x ω x

[0092] My =k y ω y

[0093] M z =k z ω z

[0094] Where kx is the bending strength of the cross section of the spiral frame 1 around the x-axis.

[0095] ky--bending strength of the cross section of the spiral frame 1 around the y-axis

[0096] kz--bending strength of the cross section of the spiral frame around the z axis

[0097] Then the projection formula of formula 2 relative to Pxyz is:

[0098]

[0099] The above differential equation is the Kirchhoff equation describing the balance of the active cable. Fx, Fy and Fz are obtained according to the Kirchhoff equation.

[0100] Calculate the number of fulcrums based on the bearing capacity of each fulcrum for the mounted cables and the total weight of the mounted cables.

[0101] The total weight of the cable is G = mg

[0102] The Fz of each fulcrum is obtained by the Kirchhoff equation, and according to the laboratory test results, Fz≤300N can effectively prevent the deformation of the spiral wire rack 1. Therefore, according to the cable length, the number of fulcrums of the spiral wire rack 1 is taken as N, and the number of N is determined by the following formula

[0103]

[0104] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A spiral cable support arranged in a clockwise and counterclockwise periodic pattern, characterized in that , comprising a spiral wire rack (1) wound on a cable, the spiral wire rack (1) being formed by connecting a plurality of clockwise spiral wire segments (11) and counterclockwise spiral wire segments (12) arranged in a spiral shape; the outer layer of the spiral wire rack (1) is wrapped with a wrapping layer; and further comprising a terminal clamp (2) for connecting a plurality of the spiral wire racks (1).

2. The spiral cable support arranged in a clockwise and counterclockwise periodic manner according to claim 1, characterized in that: The terminal clamp (2) comprises a connecting piece 1 (21), a connecting piece 2 (22) and a connecting bolt (23); the connecting piece 1 (21) is provided with a clockwise pressing groove (24) for connecting the clockwise spiral segment (11); the connecting piece 2 (22) is provided with a counterclockwise pressing groove (25) for the counterclockwise spiral segment (12); through holes are provided at both ends of the connecting piece 1 (21) and the connecting piece 2 (22); the connecting bolt (23) passes through the through holes and is connected to a nut so as to press and connect the ends of the clockwise spiral segment (11) and the counterclockwise spiral segment (12) into the connecting piece 1 (21) and the connecting piece 2 (22).

3. The spiral cable support arranged in a clockwise and counterclockwise periodic manner according to claim 2, characterized in that: It also comprises an openable and closable wire wrapping mechanism (3), wherein the wire wrapping mechanism (3) is slidably wrapped around the cable and the spiral wire rack (1), and a guide protrusion (34) is arranged inside the wire wrapping mechanism (3) for pushing the spiral wire rack (1) to roll into the cable.

4. The spiral cable support arranged in a clockwise and counterclockwise periodic manner according to claim 3, characterized in that: The thread-threading mechanism (3) comprises a sleeve shell (31), a sleeve shell (32) and a locking assembly (33); the sleeve shell (31) is hinged to the sleeve shell (32); the guide protrusion (34) is arranged on the inner ring of the sleeve shell (31); the locking assembly (33) is arranged on the sleeve shell (31) and the sleeve shell (32) to lock the thread-threading mechanism (3) after closing; the sleeve shell (31) and the sleeve shell (32) are provided with a rotating handle (35) for rotating the thread-threading mechanism (3).

5. The spiral cable support arranged in a clockwise and counterclockwise periodic manner according to claim 4, characterized in that: The locking assembly (33) comprises a semicircular block (331), a locking sleeve (332) and a round rod (333) with a notch, wherein the round rod (333) is connected to one end of the first sleeve (31), the semicircular block (331) is connected to one end of the second sleeve (32), the locking sleeve (332) is slidably arranged on the round rod (333), a spring (334) is sleeved on the round rod (333), and the spring (334) abuts against a limiting ring (335) in the locking sleeve (332); the first sleeve (31) is closed with the second sleeve (32) to make the semicircular block (331) fit into the notch on the round rod (333), and the locking sleeve (332) slides to be sleeved with the semicircular block (331) under the push of the spring (334).

6. The spiral cable support arranged in a clockwise and counterclockwise periodic manner according to claim 5, characterized in that: Each of the clockwise spiral segments (11) rotates clockwise for two times, and each of the counterclockwise spiral segments (12) rotates counterclockwise for two times. The clockwise spiral segments (11) and the counterclockwise spiral segments (12) are connected at the inflection point to form an inflection portion (13) of a V-shaped structure.

7. A method for installing a spiral cable support arranged in a clockwise and counterclockwise periodic manner, comprising the spiral cable support arranged in a clockwise and counterclockwise periodic manner as claimed in claim 6, characterized in that: The following steps are involved: Step 1: Determine the initial position of the communication cable where the spiral cable rack (1) needs to be installed; Step 2: Pull out the spiral wire rack (1) of the same length along the initial position of the communication cable; Step 3: Using the cable sleeve mechanism (3) to insert the communication cable into the spiral cable rack (1); Step 4: When the construction length is long, use the terminal clamp (2) to fasten the two spiral wire racks (1) together; Step 5: When the spiral wire rack (1) is installed to the end position, the spiral wire rack (1) is cut using a cutting tool, and the end of the spiral wire rack (1) is wrapped with a heat shrink tube; Step 6: After installation, use test equipment to verify the signal transmission quality of the communication cable.

Images