A quick-mounting and quick-detaching wire fixing device and method suitable for pre-assembled cables

Abstract

This invention belongs to the field of indoor cable assembly construction for low-voltage electrical systems such as urban rail transit signaling and communication. It relates to a quick-installation and quick-removal cable fastener and method adapted to pre-assembled cables. The cable fastener includes: a cable fastener mounting base, a cable fastener plate, spacers, spacer connecting bolts, and a cable fastener plate limiting device. The cable fastener mounting base is fixed to a cable tray or cable rack. The cable fastener plate limiting device is installed at both ends or on the sides of the mounting base. The cable fastener plate consists of a lower cable fastener plate and an upper cable fastener plate, with each layer of cable held and fixed by the two plates. Spacers are placed between the upper and lower cable fastener plates, and their thickness matches the outer diameter of the cable. The spacer connecting bolts pass through the upper cable fastener plate, spacers, and lower cable fastener plate and are locked. The cable fastener plate limiting device is locked after the uppermost cable fastener plate is installed, limiting the horizontal displacement of each layer of cable fastener plate. It features pre-assembly compatibility, maintainability of the intermediate layers, foolproof design, and quantitative design basis, offering convenience and flexibility.

Description

Technical Field

[0001] This invention relates to the field of indoor cable assembly construction technology for low-voltage electrical systems such as urban rail transit signaling and communication, and more specifically, to a quick-installation and quick-removal cable fastener and cable fastening method adapted to pre-assembled cables. Background Technology

[0002] In urban rail transit signaling, communication and other low-voltage system engineering projects, the cable laying between indoor cabinets and equipment involves a large workload, high wiring density and complex paths. Traditional construction methods often adopt the method of laying cables one by one on site and fixing them layer by layer. The cable fixing device is usually a layer-by-layer stacked structure, that is, after fixing each layer of cables, a layer of cable fixing device and cables is installed.

[0003] This layer-by-layer stacking method of wire fixing has the following technical problems:

[0004] Unable to meet pre-assembly construction requirements: The existing cable fixing device is a layer-by-layer fixing structure, which cannot complete the pre-assembly and overall packaging and transportation of the entire layer of cables in the factory or prefabrication yard, resulting in repeated disassembly and secondary laying on site, which is cumbersome.

[0005] Low construction efficiency: Under the prefabricated construction mode, the operation process of existing cable fixing devices is lengthy. Each layer of cables needs to be laid and fixed on site one by one, which is not conducive to industrial prefabrication and rapid installation.

[0006] The middle layer cables cannot be replaced or maintained: After the cable holder is fully locked, the middle layer cables are pressed by the upper and lower cable holder plates and pads. If one of the cables needs to be replaced, a large amount of the upper structure needs to be removed, resulting in high maintenance costs and risks.

[0007] Therefore, there is an urgent need for a new type of cable fastener and cable fastening method that can adapt to pre-assembled cables, support quick installation and removal, and facilitate layered handling and intermediate layer maintenance. Summary of the Invention

[0008] The technical problem to be solved by the present invention is, in view of the above-mentioned deficiencies of the prior art, to provide a quick-install and quick-release cable fastener adapted to pre-assembled cables, comprising:

[0009] Cable mounting base, cable plate, pad, pad connecting bolts, cable plate limiting device;

[0010] The cable fixing plate mounting base is fixed to the cable tray or cable rack, and the cable fixing plate limiting device is installed at both ends or the side of the cable fixing plate mounting base.

[0011] The cable fixing plate is divided into a lower cable fixing plate and an upper cable fixing plate. Each layer of cable is clamped and fixed by the upper and lower cable fixing plates.

[0012] The spacer is arranged between the upper and lower wire fixing plates, and its thickness matches the outer diameter of the cable;

[0013] The spacer connecting bolt passes through the upper wire fixing plate, the spacer and the lower wire fixing plate and is locked;

[0014] The wire fixing plate limiting device is locked after the installation of the uppermost wire fixing plate to limit the horizontal displacement of each layer of wire fixing plates.

[0015] Preferably, direction identification devices are respectively arranged on the wire fixing plate and the spacer. The direction identification devices are positioning bosses, asymmetric hole positions or anti-fooling marks, which are used to prevent the wrong installation of the wire fixing plate in the positive and negative directions and the wrong installation of the spacer direction.

[0016] Preferably, the wire fixing plates of adjacent two layers of cables are arranged in a staggered manner in the horizontal direction, so that the spacer connecting bolts of the upper wire fixing plate of the i-th layer do not overlap with the spacer connecting bolts of the lower wire fixing plate of the (i + 1)-th layer in the vertical projection plane. The staggered offset S satisfies: , where i is the layer number sequence number of the wire fixer, 1 < i < n, n is the total number of layers of the wire fixer, and L is the length of the wire fixing plate, with the unit of mm.

[0017] [[ID=1十七]]Preferably, the thickness of the spacer and the outer diameter of the cable satisfy the clamping condition: where is the design reserved elastic clearance value range

[0018] Preferably, the fastening force provided by the spacer connecting bolt satisfies: where is the number of spacer connecting bolts in the same layer, is the combined stiffness of the wire fixing plate and the spacer, and the unit is the compression deformation amount generated after the bolt is locked, with the unit of

[0019] On the other hand, the present invention also provides a quick-installation and quick-disassembly wire fixing method suitable for pre-assembled cables, including the following steps:

[0020] S1, fixedly connect the wire fixing plate installation base with the wire trough or wire rack, and install the wire fixing plate limiting device at both ends or the side of the wire fixing plate installation base, and do not lock it temporarily;

[0021] S2, perform wire fixing for the first layer of cables, that is, place the lower wire fixing plate of the first layer on the wire fixing plate installation base, select a spacer with a size matching the outer diameter of the cable and place it on the lower wire fixing plate, lay the first layer of cables and then place the upper wire fixing plate of the first layer, and pass the spacer connecting bolt through the upper wire fixing plate, the spacer and the lower wire fixing plate and lock it;

[0022] S3, perform wire fixing for the second layer of cables, place the lower wire fixing plate of the second layer in a staggered manner with the upper wire fixing plate of the first layer in the horizontal direction, and repeat the operations of spacer selection, cable laying, upper wire fixing plate placement and bolt locking in step S2;

[0023] S4, following the steps of S2 and S3, add layers one by one up to the nth layer, locking each layer independently;

[0024] S5. After completing the securing of the top layer of cables, tighten the bolts on the cable fixing plate limiting device to make the limiting device press against the edge of the top layer cable fixing plate.

[0025] S6. After completing steps S1 to S5 at the prefabrication site, loosen the bolts of the wire fixing plate limiting device, and take out each layer of cable together with its upper and lower wire fixing plates and pads as an independent module and pack it for transportation.

[0026] S7, during on-site installation, place the cable tray mounting base that is already fixed on the cable tray or cable rack and the independent modules of each layer that have been transported to the site in order from the bottom layer to the top layer, and finally tighten the bolts of the cable tray limiting device.

[0027] S8. When it is necessary to replace the cable of the i-th layer, loosen the bolts of the cable fixing plate limiting device, loosen only the connecting bolts of the pad of the i-th layer, remove the upper cable fixing plate of the layer, replace the cable, put the upper cable fixing plate back in and tighten the connecting bolts of the pad of the layer, and finally tighten the cable fixing plate limiting device again.

[0028] Preferably, the offset S in the misalignment in step S3 satisfies:

[0029] in Width of the wire guide plate, in mm.

[0030] Preferably, the specific method for selecting the matching pad in step S2 is as follows:

[0031] Measure the maximum outer diameter of the cable to be secured Select the thickness of the pad. satisfy: .

[0032] Preferably, the overall packaging and transportation in step S6 means that each layer of cable, together with its upper and lower fixing plates and pads, is taken out from the fixing plate limiting device as an independent module, without removing any pad connecting bolts of the layer and adjacent layers before taking it out.

[0033] Preferably, when replacing the cable of the i-th layer in step S8, the fixing plates and cables of the (i+1)-th to n-th layers remain in their original positions. The fixing is partially loosened only by loosening the connecting bolts of the pads of the i-th layer, and then tightened again after replacement.

[0034] The quick-release cable fastener and cable fastening method for adapting pre-assembled cables according to the present invention have the following beneficial effects:

[0035] (1) Pre-assembly adaptability: Each layer of cable can be packaged and transported independently, realizing factory prefabrication and on-site repositioning, improving construction efficiency by more than 80%.

[0036] (2) It has intermediate layer maintainability: the staggered structure allows any layer of cables to be directly exposed and replaced, reducing maintenance time by 70%.

[0037] (3) It has a foolproof design: the direction identification device prevents incorrect installation and lowers the construction threshold.

[0038] (4) Quantitative design basis: Provide formulas for pad thickness and fastening force to make the design calculable and verifiable.

[0039] (5) Convenient and flexible: Parts can be flexibly replaced for different scenarios (tool-free, explosion-proof, environmentally friendly, etc.). Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0042] Figure 1 This is a three-dimensional structural diagram of the quick-installation and quick-release cable fastener adapted to pre-assembled cables according to the present invention;

[0043] Figure 2 This is a schematic diagram of an embodiment of the quick-install and quick-release cable fastener adapted to pre-assembled cables of the present invention;

[0044] Figure 3 This is a side view of an embodiment of the quick-install and quick-release cable fastener adapted to pre-assembled cables of the present invention;

[0045] Figure 4 This is a left view of an embodiment of the quick-install and quick-release cable fastener of the present invention adapted to pre-assembled cables. In the figure, 1-cable fastener mounting base, 2-cable fastener, 3-pad, 4-pad connecting bolt, 5-cable fastener limiting device. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0050] Example 1

[0051] Figure 1 This is a three-dimensional structural diagram of the quick-installation and quick-release cable fastener adapted to pre-assembled cables according to the present invention; Figure 2 This is a schematic diagram of an embodiment of the quick-install and quick-release cable fastener adapted to pre-assembled cables of the present invention; Figure 3 This is a side view of an embodiment of the quick-install and quick-release cable fastener adapted to pre-assembled cables of the present invention; Figure 4 This is a left view of an embodiment of the quick-release cable fastener adapted to pre-assembled cables according to the present invention. Please refer to [link / reference]. Figures 1-4 The quick-release cable fastener adapted to pre-assembled cables provided in the first embodiment of the present invention includes at least:

[0052] 1. Cable mounting base; 2. Cable plate; 3. Pad; 4. Pad connecting bolt; 5. Cable plate limiting device.

[0053] Among them, the cable tray mounting base 1 is fixed on the cable tray or cable rack, and the cable tray limiting device 5 is installed at both ends or on the side of the cable tray mounting base 1.

[0054] The cable fixing plate 2 is divided into a lower cable fixing plate and an upper cable fixing plate. Each layer of cable is clamped and fixed by the upper and lower cable fixing plates 2.

[0055] The pad 3 is placed between the upper and lower cable fixing plates, and its thickness matches the outer diameter of the cable;

[0056] The spacer connecting bolt 4 passes through the upper fixing plate, spacer 3 and lower fixing plate and is locked;

[0057] The wire fixing plate limiting device 5 is locked after the top wire fixing plate is installed, which restricts the horizontal displacement of each layer of wire fixing plate.

[0058] The wire fixing plate 2 and the pad 3 are respectively provided with a direction identification device, which is a positioning boss, asymmetrical hole or a foolproof mark, to prevent the wire fixing plate from being installed in the wrong direction and the pad from being installed in the wrong direction.

[0059] The cable tray mounting base 1 can be a long strip of metal or engineering plastic component with a "U" or "L" shaped cross section. The bottom surface is provided with mounting holes (which can be elongated holes to accommodate different hole spacings) for connecting to the cable tray / rack. The sides are provided with threaded holes or slots for connecting to the cable tray limiting device 5.

[0060] The function of the mounting base 1 for the cable tray is:

[0061] (1) Bearing base: to bear the weight of the entire cable and the fastening force.

[0062] (2) Positioning reference: to provide a precise horizontal mounting surface for the bottom fixing plate.

[0063] (3) Limiting and matching: It works in conjunction with the limiting device to prevent the overall structure from shifting during transportation or vibration.

[0064] The material of the mounting base 1 of the cable board can be: aluminum alloy (lightweight), galvanized steel (high strength) or flame-retardant ABS (when high insulation requirements are required).

[0065] In some alternative implementations, a magnetic base can be used, which attaches directly to the iron cable tray, suitable for drill-free installation scenarios. Alternatively, an adhesive base can be used, fixing the cable tray to a smooth surface with industrial-grade double-sided tape or structural adhesive, suitable for situations where drilling is not permitted.

[0066] The cable fixing plate 2 can be a flat plate with arc-shaped or V-shaped cable grooves on both its upper and lower surfaces to prevent cable rolling. Both ends of the cable fixing plate have through holes for the connecting bolts 4 to pass through. A direction identification device is provided on one or both ends of the cable fixing plate.

[0067] The specific implementation of the direction discrimination device can be as follows:

[0068] Boss / Recess Structure: The front of the cable fixing plate has a small boss, while the back is flat. If it is installed backwards, it will not fit with the pad.

[0069] Asymmetrical hole positions: The two bolt holes on the fixing plate are not unequal, and the hole spacing on the pad is uniquely matched to them.

[0070] Color coding: Different colors are used for wire guides of different thicknesses, and visual inspection is also conducted.

[0071] The function of the wire fixing plate 2 is:

[0072] (1) Cable clamping: The upper and lower cable clamps fit together to form a nearly closed cable channel.

[0073] (2) Transmitting fastening force: Distributing the axial force of the bolt evenly to the surface of the cable.

[0074] (3) Anti-misinstallation: The direction identification device ensures that the construction personnel will not install the fixed plate upside down.

[0075] The material of the cable tray 2 can be: transparent polycarbonate (for easy observation of cables), flame-retardant nylon (high strength), or aluminum alloy (good heat dissipation).

[0076] In some alternative implementations, the cable holder uses a hinged structure, with a fixed hinge on one side and a bolt lock on the other, allowing for quick "flip-open" cable release. Alternatively, the cable holder can have embedded elastic rubber pads to hold fragile cables (such as fiber optic cables) and prevent damage.

[0077] The spacer block 3 is a block-shaped component, and its height (thickness) determines the gap between the upper and lower fixing plates. The upper and lower surfaces of the spacer block are flat, and a through hole is provided in the middle for the spacer block connecting bolt 4 to pass through. The spacer block also has a direction identification device.

[0078] Thickness series: Standard thicknesses are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, etc., corresponding to different cable outer diameters.

[0079] The function of pad 3 is:

[0080] (1) Gap control: By selecting pads of different thicknesses, accurately fit cables of different diameters to avoid being too loose (causing cable swaying) or too tight (damaging the insulation layer).

[0081] (2) Force transmission path: The pressure of the upper wire plate is directly transmitted to the lower wire plate through the pad, instead of pressing directly on the cable (the cable is only subjected to radial clamping force and not axial pressure).

[0082] The material of pad 3 can be: engineering plastic (low cost), stainless steel (high durability), or elastomer (when shock absorption is required).

[0083] In some alternative implementations, an adjustable pad can be used, consisting of two wedge-shaped blocks that slide relative to each other to change the total thickness, achieving stepless adjustment. Alternatively, a spring pad with a built-in small disc spring can be used to adapt to wire diameter fluctuations within a certain range, suitable for scenarios where multiple cables have inconsistent outer diameters.

[0084] The shim connecting bolt 4 can be a standard hexagonal or Torx head bolt, used with a lock nut or a threaded bushing. The bolt length is determined by the sum of the shim thickness and the fixing plate thickness.

[0085] The function of the spacer connecting bolt 4 is:

[0086] (1) Fastening: Provides axial locking force to press the upper and lower fixing plates and pads together as one unit.

[0087] (2) Quick release: Simply loosen the bolt to separate the wire structure of this layer without removing other layers.

[0088] (3) Torque control: The recommended tightening torque is 2~3 N·m (for M4 bolts), or adjust according to the cable type.

[0089] In some alternative implementations, a quick-release eccentric handle bolt can be used, which can be locked / loosened by rotating 90° without tools. Alternatively, a magnetic coupling bolt can be used, driven by an external magnetic tool, suitable for dustproof or explosion-proof environments.

[0090] The wire fixing plate limiting device 5 is an L-shaped or U-shaped metal pressure plate, one end of which is fixed to the side of the wire fixing plate mounting base 1 by bolts, and the other end presses against the edge of the uppermost wire fixing plate. Multiple clamping points can be set on the device.

[0091] The function of the wire plate limiting device 5 is:

[0092] (1) Horizontal limit: to prevent the fixed plates of each layer from moving horizontally.

[0093] (2) Overall locking: After the top layer is installed, the entire stacked structure is pressed tightly to prevent vibration from loosening.

[0094] In some alternative implementations, a flexible snap-on limiting device can be used, which uses the elastic deformation of a plastic snap-on to hold the top wire plate in place without the need for bolts or tools. Alternatively, a magnetic limiting device can be used, in which permanent magnets are embedded in the edges of the base and the wire plate, using magnetic force to engage and limit the movement.

[0095] The cable fixing plates 2 of adjacent cable layers are staggered in the horizontal direction, such that the pad connecting bolts 4 of the upper fixing plate of the i-th layer and the pad connecting bolts 4 of the lower fixing plate of the (i+1)-th layer do not overlap on the vertical projection plane, and the stagger offset S satisfies: , where i is the layer sequence number of the wire fixer, 1 < i < n, n is the total number of layers of the wire fixer, and L is the length of the wire fixing plate, with the unit of mm.

[0096] The thickness of the spacer block 3 and the outer diameter of the cable satisfy the clamping condition:

[0097] , where is the elastic clearance reserved for design, and the value range is 0.2 mm ≤ δ ≤ 0.5 mm.

[0098] The fastening force provided by the spacer block connecting bolt 4 satisfies:

[0099] , where n is the number of spacer block connecting bolts in the same layer, k is the combined stiffness of the wire fixing plate and the spacer block, with the unit of N / mm, is the compression deformation amount generated after the bolt is locked, with the unit of mm.

[0100] During specific implementation: Base fixing: The installation base 1 of the wire fixing plate is fixed to the wire trough / rack by bolts, welding or bonding. The long round holes on the base allow an adjustment margin of ±5 mm.

[0101] Pre - installation of the limiting device: The wire fixing plate limiting device 5 is lightly hung on the side of the base (1) with bolts, not locked temporarily, and a vertical floating space of about 2 mm is reserved.

[0102] Placement of the first - layer lower wire fixing plate: The first - layer lower wire fixing plate 2 is placed on the base (1), and initial positioning is achieved by using the positioning convex edge or positioning pin on the base.

[0103] Placement of the spacer block: According to the outer diameter of the first - layer cable, select a spacer block 3 with a thickness and place it between the two bolt holes on the lower wire fixing plate (or place one spacer block at each bolt hole position).

[0104] Cable laying: Put the pre - assembled whole - layer cable (already bundled in rows) into the cable trough of the wire fixing plate.

[0105] Installation of the upper wire fixing plate: The first - layer upper wire fixing plate 2 is covered on the cable, and its bolt holes are aligned with the holes of the lower wire fixing plate and the spacer block.

[0106] Bolt locking: The spacer block connecting bolt 4 passes through the upper wire fixing plate, the spacer block, and the lower wire fixing plate, and is engaged with the internal thread of the lower wire fixing plate with a nut or directly, and locked according to the torque.

[0107] Installation of the second layer with offset: The second - layer lower wire fixing plate 2 is not directly placed directly above the first - layer upper wire fixing plate, but is offset forward or backward by a distance This causes the bolt holes in the second layer to be vertically offset from those in the first layer. Then repeat steps 4-7.

[0108] Layer by layer: Repeat step 8 until the nth layer.

[0109] Overall locking: After the top layer of the wire fixing plate is installed, fully tighten the bolts of the wire fixing plate limiting device 5 so that the limiting device presses against the edge of the top layer of the wire fixing plate.

[0110] The working principle of the quick-install and quick-release cable fastener adapted to pre-assembled cables in this embodiment is as follows:

[0111] (1) Gap selection principle.

[0112] definition: Cable outer diameter (unit: mm). For multiple cables, take the largest outer diameter. : Pad thickness (unit: mm). : Thickness of the wire guide plate (unit: mm). Clamping gap between the upper and lower wire fixing plates (unit: mm)

[0113] The clamping condition formula is: ,and .in: The design includes a reserved elastic gap of 0.2 mm ≤ δ ≤ 0.5 mm to prevent the cable from being over-compressed and to compensate for the manufacturing tolerance of the cable's outer diameter.

[0114] The clamping condition formula can guide on-site construction personnel in selecting the appropriate pads based on the measured cable outer diameter. If... If the cable is flattened, the insulation may be damaged; if If the cable clamp is not tight, it may become loose.

[0115] (2) The principle of fastening force calculation and prevention of loosening.

[0116] definition: Total tightening force (N) provided by a single pad connecting bolt. Number of bolts connecting the same layer of pads (usually 2 or 4). The stiffness (N / mm) of the combination of the wire plate and the pad is determined by the elastic modulus and geometry of the material, with a typical value of 500~2000 N / mm. : The amount of compressive deformation (mm) produced after the bolt is tightened.

[0117] The formula for balancing the fastening forces is: .

[0118] At the same time, to prevent cable movement, the following must be met: .

[0119] in This represents the total mass (kg) of the cables in this layer. The acceleration due to transport or vibration (m / s², which can be taken as 5g ≈ 49m / s²). This is the coefficient of friction between the cable and the mounting plate (approximately 0.3~0.5).

[0120] This bolt tightening force balance formula can be used to check whether the bolt tightening force is sufficient to resist the inertial forces during transportation. Insufficient, the number of bolts needs to be increased. Or increase torque (i.e. increase) ).

[0121] (3) The principle of preventing interference by misplaced structures.

[0122] definition: : Length of the cable tray (mm). Width of the cable tray (mm). Offset amount (mm).

[0123] The misplaced formula is: .

[0124] When the minimum distance between bolt holes in adjacent layers on the vertical projection plane ( When the radius is equal to the bolt head radius, interference-free disassembly can be achieved. Using... At this time, the center distance between bolt holes is increased to the maximum, completely avoiding the upper and lower bolts being on the same vertical line. This is achieved by... When the adjacent layers of the fixing plates are arranged with their joints overlapping, the stability is better.

[0125] This structure allows for replacement when the first... When handling layered cables, the top mounting plate of that layer can be removed vertically upwards without interfering with the first layer. The lower fixing plate or bolts of the layer collided.

[0126] Example 2

[0127] This embodiment provides a quick-installation and quick-release cable fixing method adapted to pre-assembled cables, including the following steps:

[0128] S1. Pre-install the base and limiting device: Fix the cable tray mounting base 1 to the on-site cable tray or cable rack, and then install the cable tray limiting device 5 to both ends or sides of the base, but do not lock it yet, leaving a 2~3mm vertical adjustment gap.

[0129] The purpose of step S1 is to provide a fixed foundation for the overall structure and to provide guidance and restraint for subsequent layered structures. Pre-installation without locking can avoid inter-layer cumulative errors caused by early rigid constraints.

[0130] S2, perform the first layer of cable fixing (bottom layer):

[0131] S21, place the first layer of lower fixing plate 2 on the base (1), and use the direction identification device to confirm that the front and back are correct.

[0132] S22, Measure the actual outer diameter of the first layer cable, according to Select pad 3 and place it in the corresponding pad slot of the lower fixing plate.

[0133] S23, Lay the first layer of cables, ensuring that the cables fall flat into the cable tray.

[0134] S24, place the first layer upper cable fixing plate 2 so that the cable grooves of the upper and lower cable fixing plates are aligned.

[0135] S25, insert the pad block connecting bolt 4 and tighten it to the specified torque.

[0136] The purpose of step S2 is to securely clamp the first layer of cables, forming the first cable module that can be transported independently.

[0137] The specific method for selecting the matching pad in step S2 is as follows:

[0138] Measure the maximum outer diameter of the cable to be secured Select the thickness of the pad. satisfy: .

[0139] S3, Perform the second layer cable fixing (offset installation): Place the second layer lower fixing plate 2 in a position offset from the first layer upper fixing plate, with an offset amount... or Repeat steps S22-S25.

[0140] The purpose of step S3 is to ensure that the connecting bolts of adjacent layers do not overlap in the vertical direction through the staggered structure, thus providing space for subsequent maintenance of intermediate layers. At the same time, the staggered structure increases the overall stability of the stacked layers, similar to the staggered joint principle in bricklaying.

[0141] In step S3, the items are misplaced, and their offset S satisfies:

[0142] in Width of the wire guide plate, in mm.

[0143] S4, nth layer cable fixing (layer by layer): Following the method of the first layer and the second layer, add layers upwards one by one, with each layer having an independent selection of pad thickness and an independent tightening bolt, until the nth layer of cable fixing is completed.

[0144] The purpose of step S4 is to achieve high-density, structured cabling of multi-layer cables, with each layer being independently detachable and adaptable to cables of different diameters (e.g., the first layer uses 6mm pads, and the second layer uses 4mm pads).

[0145] S5, perform overall locking: After securing the top layer of cables, tighten all bolts on the cable fixing plate limiting device 5 to press the limiting device against the edge of the top layer cable fixing plate. The recommended tightening torque is 4~5 N·m.

[0146] The purpose of step S5 is to prevent horizontal movement of each layer during transportation or vibration, and to ensure the overall structural rigidity.

[0147] S6 is used for pre-assembly and overall packaging for transportation.

[0148] S61, complete steps S1-S5 at the factory or prefabrication site.

[0149] S62, loosen the bolts of the wire fixing plate limiting device 5 so that it no longer presses against the uppermost wire fixing plate.

[0150] S63, each layer of cable tie along with the internal cables is removed as a whole module (the upper and lower cable tie plates and pads of each layer have been connected as a whole by bolts).

[0151] S64 packages, stacks, and transports each layer of modules separately.

[0152] The purpose of step S6 is to realize whole-floor transportation, completely change the traditional on-site laying mode of one piece at a time, and turn on-site construction into a simple module repositioning operation, which greatly improves the efficiency of prefabricated construction.

[0153] The overall packaging and transportation in step S6 refers to the removal of each layer of cable, together with its upper and lower fixing plates and pads, as an independent module from the fixing plate limiting device 5, without removing any pad connecting bolts 4 of the layer and adjacent layers before removal.

[0154] S7, perform on-site reset and final fixation.

[0155] S71, the cable tray mounting base 1 has been fixed on the cable tray on site.

[0156] S72, each layer of cable module transported to the site is placed into the base (1) in order from bottom to top.

[0157] S73. After each layer is placed, check whether it is misaligned with the layer below.

[0158] S74, after all the wires have been placed, reinstall and tighten the bolts of the wire plate limit device 5.

[0159] The purpose of step S7 is to achieve rapid resetting, ensuring that the on-site construction quality is completely consistent with the prefabrication. The resetting time is generally within 10 to 30 minutes (depending on the number of floors).

[0160] S8, perform intermediate layer cable replacement and maintenance.

[0161] S81, loosen the bolts of the wire plate limiting device 5.

[0162] S82, only loosen the first layer( Remove the pad block connecting bolt 4 and take off the upper fixing plate of this layer.

[0163] S83, remove the cable that needs to be replaced and insert the new cable.

[0164] S84, reposition the upper fixing plate and tighten the connecting bolt 4 of the pad block.

[0165] S85 Re-locking the wire plate limit device 5.

[0166] Step S8 aims to solve the problem of the unmaintainable intermediate layer of traditional cable tie systems. Traditional methods require removing the first... Layer to the first In contrast, this embodiment only requires operation on the target layer, reducing maintenance time from hours to minutes.

[0167] When replacing the cable in step S8, the cable fixing plates and cables from layer i+1 to layer n remain in their original positions. Only the connecting bolts 4 of the pad block in layer i are loosened to achieve partial loosening, and then tightened again after replacement.

[0168] The beneficial effects of the present invention, through the design of the above embodiments, are as follows:

[0169] (1) Pre-assembly adaptability: Each layer of cable can be packaged and transported independently, realizing factory prefabrication and on-site repositioning, improving construction efficiency by more than 80%.

[0170] (2) It has intermediate layer maintainability: the staggered structure allows any layer of cables to be directly exposed and replaced, reducing maintenance time by 70%.

[0171] (3) It has a foolproof design: the direction identification device prevents incorrect installation and lowers the construction threshold.

[0172] (4) Quantitative design basis: Provide formulas for pad thickness and fastening force to make the design calculable and verifiable.

[0173] (5) Convenient and flexible: Parts can be flexibly replaced for different scenarios (tool-free, explosion-proof, environmentally friendly, etc.).

[0174] This invention has been described with reference to specific embodiments, but those skilled in the art will understand that various changes and equivalent substitutions can be made without departing from the scope of the invention. Furthermore, numerous modifications can be made to this invention to suit specific applications without departing from its protection scope. Therefore, this invention is not limited to the specific embodiments disclosed herein, but includes all embodiments falling within the scope of the claims.

Claims

1. A quick-mount and quick-release wire fixing device adapted to a pre-assembled cable, characterized in that, include: Fixed plate mounting base (1), fixed plate (2), pad (3), pad connecting bolt (4), fixed plate limiting device (5); The cable mounting base (1) is fixed to the cable tray or cable rack, and the cable limiting device (5) is installed at both ends or on the side of the cable mounting base (1). The cable fixing plate (2) is divided into a lower cable fixing plate and an upper cable fixing plate. Each layer of cable is clamped and fixed by the upper and lower cable fixing plates (2). The pad (3) is placed between the upper and lower wire fixing plates, and its thickness matches the outer diameter of the cable; The pad connecting bolt (4) passes through the upper fixing plate, the pad (3) and the lower fixing plate and is locked; The fixing plate limiting device (5) is locked after the uppermost fixing plate is installed, thus limiting the horizontal displacement of each layer of fixing plates.

2. The quick-release cable fastener for pre-assembled cables according to claim 1, characterized in that, The fixing plate (2) and the pad (3) are respectively provided with a direction identification device. The direction identification device is a positioning boss, an asymmetrical hole or a foolproof mark, which is used to prevent the fixing plate from being installed in the wrong direction and the pad from being installed in the wrong direction.

3. The quick-release cable fastener for adapting to pre-assembled cables according to claim 1, characterized in that, The wire fixing plates (2) of adjacent two layers of cables are arranged in a staggered manner in the horizontal direction, so that the pad connection bolts (4) of the wire fixing plate on the i-th layer do not overlap with the pad connection bolts (4) of the wire fixing plate on the lower layer of the (i + 1)-th layer in the vertical projection plane, and the staggered offset S satisfies: , where i is the layer number sequence number of the wire fixer, 1 < i < n, n is the total number of layers of the wire fixer, and L is the length of the wire fixing plate, with the unit of mm.

4. The quick-release cable fastener for adapting to pre-assembled cables according to claim 1, characterized in that, The thickness of the pad (3) With cable outer diameter The clamping conditions must be met between them: ,in To allow for a pre-existing elastic gap, the value should be within the range of 0.2 mm ≤ δ ≤ 0.5 mm.

5. The quick-release cable fastener for adapting to pre-assembled cables according to claim 1, characterized in that, The fastening force provided by the pad connecting bolt (4) satisfy: Where n is the number of bolts connecting the same layer of pads, and k is the combined stiffness of the fixing plate and pads, in N / mm. The amount of compressive deformation after the bolt is tightened is expressed in mm.

6. The quick-installation and quick-release cable fixing method for adapting pre-assembled cables according to claim 1, characterized in that, Includes the following steps: S1, fix the cable tray mounting base (1) to the cable tray or cable rack, and install the cable tray limiting device (5) at both ends or sides of the cable tray mounting base (1), without locking it for the time being; S2, perform the first layer of cable fixing, that is, place the first layer of lower fixing plate (2) on the fixing plate mounting base (1), select a pad (3) that matches the outer diameter of the cable and place it on the lower fixing plate (2), lay the first layer of cable and then place the first layer of upper fixing plate (2), and pass through the upper fixing plate, pad (3) and lower fixing plate and lock it by the pad connecting bolt (4); S3, perform the second layer of cable fixing, place the second layer lower fixing plate (2) and the first layer upper fixing plate (2) in a staggered position in the horizontal direction, and repeat the selection of pads, cable laying, placement of upper fixing plate and bolt tightening operation in step S2. S4, following the steps of S2 and S3, add layers one by one up to the nth layer, locking each layer independently; S5, after completing the uppermost cable fixing, tighten the bolts on the fixing plate limiting device (5) so that the limiting device presses the edge of the uppermost fixing plate; S6. After completing steps S1 to S5 at the prefabrication site, loosen the bolts of the wire fixing plate limiting device (5), and take out each layer of cable together with its upper and lower wire fixing plates and pads as an independent module and pack it for transportation. S7, during on-site installation, the cable tray mounting base (1) that has been fixed on the cable tray or cable rack is placed layer by layer with the independent modules of each layer that have been transported to the site, from the bottom layer to the top layer, and finally the bolts of the cable tray limiting device (5) are tightened. S8. When it is necessary to replace the cable of the i-th layer, loosen the bolt of the cable fixing plate limiting device (5), loosen only the pad connecting bolt (4) of the i-th layer, remove the upper cable fixing plate of the layer, replace the cable, put the upper cable fixing plate back in and tighten the pad connecting bolt (4) of the layer, and finally tighten the cable fixing plate limiting device (5) again.

7. The quick-release cable fastener for adapting to pre-assembled cables according to claim 6, characterized in that, The offset S in the misplacement described in step S3 satisfies: in Width of the wire guide plate, in mm.

8. The quick-release cable fastener for adapting to pre-assembled cables according to claim 6, characterized in that, The specific method for selecting the matching pad in step S2 is as follows: Measure the maximum outer diameter of the cable to be secured Select the thickness of the pad. satisfy: .

9. The quick-release cable fastener for pre-assembled cables according to claim 6, characterized in that, The overall packaging and transportation in step S6 refers to the removal of each layer of cable, together with its upper and lower fixing plates and pads, as an independent module from the fixing plate limiting device (5), without removing any pad connecting bolts (4) of the layer and adjacent layers before removal.

10. The quick-release cable fastener for adapting to pre-assembled cables according to claim 6, characterized in that, When replacing the cable in step S8, the cable fixing plates and cables from layer i+1 to layer n remain in their original positions. The fixing is partially loosened by loosening the connecting bolts (4) of the pad block in layer i, and then tightened again after replacement.

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