A cable laying device and method

Abstract

The present application relates to cable installation technical field, specifically to a kind of cable laying device and method, several bottom baffle spaced apart from the inner top surface of cover shell are equipped in bottom shell, when cover shell covers on bottom shell, bottom baffle is separated into several sub-passage by the threading passage enclosed by cover shell and bottom shell;It also includes the line gripping assembly of clamping several cables, the line gripping assembly includes the adjusting rod of being installed in threading passage across, adjusting rod has several two-way threaded rod sections and several pairs of clamping plates being screw mounted, each pair of clamping plates is slidably fitted and installed in sub-passage;The lug plate top of clamping plate is fixed with cylindrical sleeve, threaded cylinder is coaxially rotatably installed in cylindrical sleeve and is screw connected on two-way threaded rod section, threaded cylinder is connected between cylindrical sleeve by cylindrical spring, adjusting sleeve is screw fitted and sleeved on the outside of cylindrical sleeve, all stud is synchronously moved axially by screwing adjusting sleeve.The present application can automatically and efficiently carry out the laying of multiple cables, and is easy to maintain.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and in particular to a cable laying device and method. Background Technology

[0002] When laying multiple cables, such as power lines, network cables, and signal lines used in IoT projects, it's common to encounter situations where shared cabling space is required. This can involve laying multiple cables of the same type together, or laying different types of cables together. In either case, path crossing and overlap issues are highly likely. For example, in wall-embedded conduits or ceiling cable trays, if the layered routing of different types of cables is not planned in advance, multiple cables passing through the same conduit can easily lead to narrow paths, making it difficult to pull cables out during later maintenance.

[0003] Secondly, when multiple cables are pulled at the same time, the clamping force of each cable cannot be adjusted individually. Differences in cable material (such as copper cable, optical cable) and diameter can easily lead to unstable force or excessive force. For example, when pulling a bundle of mixed cables, thinner network cables may be broken, or softer multi-strand cables may become knotted or tangled. If manual pulling is used, multiple people need to coordinate to exert force simultaneously. If the rhythm is inconsistent, it may cause wear on the cable sheath, expose the copper core, and cause a short circuit risk.

[0004] Furthermore, when multiple cables are densely laid out, such as under floors or inside walls, without detailed wiring diagrams, it becomes difficult to quickly locate the problematic cable when a fault occurs later, such as a cable break or interference. For example, if the network is down in a certain area of ​​an office building, it is necessary to check multiple network cables one by one. However, the routing of each cable is not fixed, and the cable arrangement varies at different locations, which is time-consuming and labor-intensive, and may even lead to accidentally cutting normal cables and expanding the scope of the fault.

[0005] Finally, if no redundant space is reserved during the initial wiring, the cables will be bundled together irregularly. When adding new cables later, such as adding equipment or expanding the network, there will be a "no path to follow" dilemma. For example, the cable tray may be full of cables, making it impossible to add fiber optic cables; or the pre-embedded conduits in the wall may be too full of cables, making it impossible to insert new cables. This would require re-drilling the wall and rewiring, increasing construction costs and time, and damaging the original decoration structure. Summary of the Invention

[0006] The purpose of this invention is to provide a cable laying device and method that solves the problem in the prior art that it is not possible to automatically, efficiently and reliably plan the laying path of multiple or multiple groups of cables.

[0007] To achieve the above objectives, the present invention provides a cable laying device, including a conduit, the conduit including a bottom shell and a top shell, the bottom shell having a plurality of bottom partitions spaced apart from the top surface of the top shell, and when the top shell is placed on the bottom shell, the bottom partitions divide the conduit channel formed by the top shell and the bottom shell into a plurality of sub-channels.

[0008] It also includes a wire gripping assembly for clamping several cables. The wire gripping assembly includes an adjusting rod that is installed across the cable threading channel above the bottom partition. The adjusting rod has several bidirectional threaded sections. Each bidirectional threaded section has two opposing clamping plates threaded onto it. Each pair of clamping plates is slidably installed in the sub-channel along its length, so that after each pair of clamping plates clamps the corresponding cable, it can slide along the length of the cable threading channel, thereby completing the synchronous threading of several cables.

[0009] The clamping plate has a lug plate at its top, and a cylindrical sleeve axially parallel to the adjusting rod is fixed to the top of the lug plate. A threaded cylinder is rotatably mounted coaxially inside the cylindrical sleeve. The threaded cylinder is threaded onto the bidirectional threaded rod section. One end of the threaded cylinder extends out of the cylindrical sleeve, and the other end has an annular stepped portion located inside the cylindrical sleeve. The annular stepped portion is connected to the inner end face of the cylindrical sleeve at the end from which the threaded cylinder extends through a cylindrical spring, and the cylindrical spring is compressed by an annular pressure plate. The annular pressure plate is axially pressed by a plurality of studs arranged in an annular array at the end of the cylindrical sleeve. A cylindrical gear is coaxially fixed to the end of each stud located outside the end face of the cylindrical sleeve. All cylindrical gears mesh with an internal gear, which is coaxially and integrally set on the inner side wall of an adjusting sleeve. The adjusting sleeve is threadedly fitted onto the outside of the cylindrical sleeve so that when the adjusting sleeve is turned, all studs move axially synchronously.

[0010] In one of the sub-channels located in the center of the threading channel, a pull rope is pre-installed along its length. The pull rope is used to connect with any one of the adjusting rod, clamp, or lug plate to pull all the clamps to slide forward synchronously within the threading channel.

[0011] Guide grooves are provided along the length direction on the two opposite inner sidewalls of the cover or bottom shell. The guide grooves are for the rolling bearing or slider installed at the end of the adjusting rod to be inserted so that the adjusting rod can move forward along the guide grooves.

[0012] The clamping plate has several rollers at its bottom end, which are in rolling contact with the inner bottom surface of the sub-channel; the cylindrical sleeve has a boss on its top side, which is in sliding contact with the inner top surface of the cover.

[0013] The cylindrical sleeve has a shallow groove on its outer wall in a direction parallel to the axial direction, and the bottom of the groove has several scale lines indicating length along its extension direction.

[0014] The cover shell has several upper partitions fixed on its inner top surface, which are vertically aligned with the bottom partition. A sliding plate is vertically slidably installed inside the bottom of each upper partition. A connecting post is vertically fixed near the bottom of the sliding plate. The connecting post includes a sliding post and a threaded post that are coaxially rotatably connected. The sliding post is slidably inserted into the top of the bottom partition and connected to a tension spring inside the bottom partition. The threaded post is threaded to the bottom of the sliding plate. The tension spring allows the upper partitions, sliding plate, and bottom partitions to be spliced ​​together as a single plate when not in use, thereby dividing the threading channel into several non-interconnected sub-channels.

[0015] When the sliding plate is pressed further into the upper partition, the connecting post is partially pulled out of the bottom partition, so that a gap is formed between the sliding plate and the bottom partition, which allows the adjusting rod to pass through, so that the adjusting rod can move forward unimpeded along the length of the wire hole.

[0016] Among them, between each two adjacent bidirectional threaded rod sections on the adjusting rod, there is a smooth rod section, and the upper and lower sides of the smooth rod section are in smooth contact with the sliding plate and the bottom partition plate, respectively.

[0017] The diameter of the smooth rod segment is smaller than that of the bidirectional threaded rod segment, and the axial length of both segments is greater than the thickness of the slide plate and the bottom partition.

[0018] Each end of the adjusting rod has a slot, and a compression spring is installed in the slot. The rolling bearing or slider is installed on the cylindrical plug. One end of the plug is inserted into the slot through a plate and connected to the compression spring. The end face of the other end is a raised spherical surface, which is in smooth contact with the side wall of the guide groove.

[0019] Based on the above inventive concept, the present invention also proposes a cable laying method, which mainly uses the aforementioned cable laying device for wiring, and includes the following steps during operation:

[0020] 1. First, place the ends of the cables to be threaded between the corresponding two clamps, then rotate the adjusting rod until the clamps no longer come into contact with each other, at which point the clamps will clamp all the cables.

[0021] 2. Rotate an anti-rotation block onto the adjusting rod. One side of the anti-rotation block is a rotation-limiting plane, and the other side is an arc surface with a threaded hole. Rotate the anti-rotation block until its rotation-limiting plane is in contact with the end face of the bottom partition or the upper partition. Then, screw a locking screw into the threaded hole and press it against the adjusting rod to achieve a fixed connection between the anti-rotation block and the adjusting rod.

[0022] 3. Tie a pull rope that was previously left in the cable passage of the cable conduit to the cable gripping assembly at this time, and then insert the entire cable gripping assembly holding the cable into one end of the cable passage.

[0023] 4. Pull the pull rope at the other end of the conduit to allow the cable gripping assembly to thread the evenly arranged cables through the corresponding sub-channels, thereby laying each group of cables in the corresponding sub-channels to achieve the purpose of one-time wiring.

[0024] In this invention, a cable laying device and method are designed with a special conduit and a cable gripping assembly. The cable gripping assembly simultaneously grips multiple cables or groups of cables, laying them one-to-one in corresponding sub-channels, avoiding cable tangling and making them easy to identify. Inside the conduit, the paths of each cable remain consistent, and each sub-channel can have redundant space to allow for the temporary addition of identical cables later, facilitating inspection and maintenance. Furthermore, each cable can have its own independently adjustable clamping force to prevent damage to some cables or breakage due to excessive clamping force or forced under overload tension.

[0025] Specifically, when clamping these cables, the constraint force applied by the cylindrical springs not only prevents the remaining clamps from becoming immobile after one pair of clamps has clamped the cable, but also achieves a similar overload protection purpose: preventing the two clamps from pressing too tightly on the cable when the adjusting rod rotates, thus avoiding cable damage. Furthermore, the ultimate clamping force on the cable can be changed by rotating the adjusting sleeve. When the corresponding clamps reach their limit and clamp the cable, further rotation of the adjusting rod will no longer cause the clamps to move closer together, but rather cause the integrated structure consisting of the threaded cylinder and the adjusting rod to rotate within the cylindrical sleeve fixed on the clamp, preventing the clamps from endlessly converging and damaging the cable. Moreover, the corresponding cylindrical springs on different clamps can have their applied elastic force changed by altering the rotation of the adjusting sleeve. Therefore, different clamping forces can be individually set for different cables. If the tension is too high, since the clamping force is constant, the cable can automatically slide out of the clamp under strong tension, preventing breakage, especially when the cable is accidentally entangled in other objects, thus preventing breakage caused by excessive pulling.

[0026] Therefore, the cable laying device and method of the present invention are not only automatic and efficient in wiring, but also safe, reliable and flexible in use. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0028] Figure 1 This is a schematic diagram of the end face of the conduit in one of the cable laying devices of the present invention;

[0029] Figure 2 This is a top view of the wire gripping assembly with each pair of clamps slidingly installed in the respective sub-channels of the bottom shell;

[0030] Figure 3 yes Figure 2 A schematic diagram showing the structure clamping several cables.

[0031] Figure 4 yes Figure 3 A schematic diagram showing a pair of cylindrical sleeves installed on a bidirectional threaded rod section, which are respectively threaded together by two adjusting sleeves.

[0032] Figure 5 yes Figure 4 An axial sectional view of the mating joint between a cylindrical sleeve and an adjusting sleeve;

[0033] Figure 6 yes Figure 2 A schematic diagram of the clamping surface end of the clamping plate in the middle;

[0034] Figure 7 This is a structural diagram when the top surface of the cylindrical sleeve has a boss;

[0035] Figure 8 This is a schematic diagram of the end face of the conduit in another cable laying device of the present invention.

[0036] Figure 9 yes Figure 8 The diagram shown illustrates the installation of the adjusting rod when there is a gap between the sliding plate and the bottom partition.

[0037] Figure 10 This is a side view of the structure connecting the upper partition, the sliding plate, and the bottom partition when they are not in operation.

[0038] Figure 11 Side view of the upper partition, slide plate, and bottom partition in the working state (with the wire gripping assembly installed);

[0039] Figure 12 for Figure 11 A top view of the bottom partition in the middle;

[0040] Figure 13 This is a side view of an alternative implementation of the upper partition, sliding plate, and bottom partition when they are not in operation.

[0041] Figure 14 for Figure 13 A top view of the bottom partition in the middle;

[0042] Figure 15 This is a schematic diagram showing the relative positions between the shaft plug and the end of the adjusting rod in the non-installed state;

[0043] Figure 16 This is a schematic diagram showing the relative position between the shaft plug and the end of the adjusting rod when the adjusting rod is installed horizontally inside the conduit.

[0044] Figure 17 This is a schematic diagram of the cross-section when the adjusting rod is equipped with an anti-rotation block;

[0045] Figure 18 This is a partial structural diagram of the adjusting rod;

[0046] Figure 19 for Figure 5 Another cross-sectional view of the structure shown;

[0047] Figure 20 This is a schematic diagram of a specific structure for connecting columns.

[0048] In the diagram: 1. Bottom shell; 2. Cover shell; 3. Bottom partition plate; 4. Adjusting rod; 401. Bidirectional threaded rod section; 402. Smooth rod section; 5. Sub-channel; 6. Pull rope; 7. Clamping plate; 8. Lug plate; 9. Cylindrical sleeve; 901. Scale line; 902. Adjusting sleeve; 10. Threaded cylinder; 11. Annular step section; 12. Cylindrical spring; 13. Annular pressure plate; 14. Stud; 15. Cylindrical gear; 16. Internal gear; 17. Pad plate; 18. Upper partition plate; 19. Slide plate; 20. Connecting column; 2001. Threaded column; 2002. Sliding column; 21. Tension spring; 22. Shaft plug; 2201. Spherical curved surface; 23. Insert plate; 24. Compression spring; 25. Slot; 26. Rolling bearing; 27. Anti-rotation block; 2701. Rotation limiting plane; 28. Locking screw; 29. ​​Roller; 30. Cable to be installed; 31. Gap; 32. Guide groove. Detailed Implementation

[0049] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0050] The first embodiment of this application is as follows:

[0051] Please see Figures 1-3 This embodiment specifically introduces a cable laying device, mainly including a conduit. This conduit includes a bottom shell 1 and a cover shell 2. Several bottom partitions 3 are provided inside the bottom shell 1, spaced apart from the inner top surface of the cover shell 2. That is, the bottom partitions 3 do not contact the inner top surface of the cover shell 2. Figure 1 As shown, there is a space between the two. When the cover 2 is placed on the bottom shell 1, the bottom partition 3 divides the cable-laying channel formed by the cover 2 and the bottom shell 1 into several sub-channels 5. These sub-channels 5 are used to lay multiple cables or multiple groups of cables. In addition, the cable laying device in this embodiment also includes a cable gripping assembly that clamps several cables, such as... Figures 2-3The cable gripping assembly includes an adjusting rod 4 located above the bottom partition 3. This adjusting rod 4 is installed transversely across the cable passage along the width of the cable conduit. The adjusting rod 4 has several bidirectional threaded rod segments 401, that is, the bidirectional threaded rod segments 401 have two sets of threads with opposite directions of rotation. Each bidirectional threaded rod segment 401 is threadedly fitted with two opposing clamping plates 7, which are threadedly engaged with the corresponding threaded rod segments. Each pair of clamping plates 7 is slidably installed in the sub-channel 5 along its length, so that after each pair of clamping plates 7 clamps the corresponding cable, it can slide along the length of the cable passage, that is, along the corresponding sub-channel 5, thereby completing the synchronous cable threading of several cables.

[0052] Since all clamping plates 7 are driven by the same adjusting rod 4, in order to avoid the problem that one set of clamping plates 7 clamps the corresponding cable and prevents the adjusting rod 4 from continuing to rotate, this embodiment has made the following structural design: Figure 2 as well as Figures 4-6 As shown, a lug plate 8 is fixedly provided on the top of the clamping plate 7. In actual manufacturing, it is preferable that the lug plate 8 and the clamping plate 7 are integrally formed. The lug plate 8 can extend a certain distance along the width direction of the sub-channel 5, and a cylindrical sleeve 9 with an axial direction parallel to the adjusting rod 4 is fixed on the top of the lug plate 8. A threaded cylinder 11 threadedly sleeved on the bidirectional threaded rod section 401 is coaxially rotatably installed inside the cylindrical sleeve 9, and as shown... Figure 5 and Figure 19As shown, one end of the threaded cylinder 11 extends out of the cylindrical sleeve 9, and the other end has an annular stepped portion 1101, which is coaxially located inside the cylindrical sleeve 9. Simultaneously, the annular stepped portion 1101 is connected to one end of a cylindrical spring 12, the other end of which is pressed against an annular pressure plate 13. The annular pressure plate 13 is positioned against the inner end face of the end of the cylindrical sleeve 9 where the threaded cylinder 11 extends. A pad 17 can also be provided at one end of the cylindrical spring 12 for contact force transmission. Furthermore, in this embodiment, the annular pressure plate 13 is axially pressed by a plurality of studs 14 arranged in an annular array at the end of the cylindrical sleeve 9. It is preferable that the end face of the annular pressure plate 13 is rotatably connected to the smooth section at the end of the studs 14, and the two remain connected at all times. The aforementioned stud 14, located outside the end face of the cylindrical sleeve 9, is coaxially fixed with a cylindrical gear 15. The portion of the stud 14 located inside the top of the cylindrical sleeve 9 has threads, thus it is threaded through and installed in a way that mates with the top thread of the cylindrical sleeve 9. All cylindrical gears 15 mesh with an internal gear 16. When the internal gear 16 rotates, the cylindrical gears 15 rotate accordingly. Because the stud 14 is threaded through and mates with the top thread of the cylindrical sleeve 9, it is equivalent to further screwing the stud 14 into or out of the cylindrical sleeve 9. During this process, since the cylindrical gears 15 and the internal gear 16 are gear-driven, they always remain meshed. Therefore, the cylindrical gears 15 can move axially along with the axial movement of the stud 14 without affecting the gear transmission relationship. All studs 14 move synchronously, thereby causing the annular pressure plate 13 to move axially, applying axial force to the spring. This facilitates subsequent use, where, when the corresponding two clamping plates 7 clamp the cable and cannot continue to close, the corresponding threaded cylinder 11 rotates coaxially within the cylindrical sleeve 9. In the specific manufacturing process, the internal gear 16 is coaxially and integrally set on the inner side wall of an adjusting sleeve 10, and the adjusting sleeve 10 is threadedly fitted onto the outer side of the cylindrical sleeve 9 so that when the adjusting sleeve 10 is turned, all the studs 14 move axially synchronously, so that the annular pressure plate 13 can better move axially to compress the cylindrical spring 12. At the same time, because the adjusting sleeve 10 is threadedly fitted onto the outer side of the cylindrical sleeve 9, the adjusting sleeve 10 can maintain a certain stability when adjusted to the correct position and is not easy to rotate freely. That is, the torque of the threaded cylinder 11 and the bidirectional threaded rod section 401 or the adjusting rod 4 rotating relative to the cylindrical sleeve 9 should be within the set range. If it is necessary to increase the clamping force on the cable, the adjusting sleeve 10 can be screwed in further to further compress the cylindrical spring 12.

[0053] The second embodiment of this application, based on the first embodiment, is as follows: Figures 1-3As shown, in a sub-channel 5 located in the center of the cable threading channel, a pull rope 6 is pre-installed along its length. The pull rope 6 is used to connect to any one of the adjusting rod 4, clamping plate 7, or lug plate 8, so as to pull all the clamping plates 7 to slide forward synchronously within the cable threading channel, that is, to pull the cable gripping assembly to move within the cable threading tube for wiring. This pull rope 6 is placed in advance in the corresponding sub-channel 5. When in use, its end is connected to the cable gripping assembly that has already clamped the cable, for example, to the adjusting rod 4, so that the other end of the pull rope 6 is pulled, causing the cable gripping assembly to move synchronously with all the cables within their respective sub-channels 5.

[0054] In specific practice, such as Figure 2 As shown, guide grooves 32 can be provided along the length direction on the two opposite inner sidewalls of the cover shell 2 or the bottom shell 1. The guide grooves 32 allow the rolling bearing 26 or slider mounted on the end of the adjusting rod 4 to be inserted, so that the adjusting rod 4 moves forward along the guide grooves 32, allowing the wire gripping assembly to move forward more smoothly. Furthermore, it can also be as follows... Figures 6-7 As shown, several rollers 29 are provided at the bottom end of the clamping plate 7. The rollers 29 make tangential rolling contact with the inner bottom surface of the sub-channel 5, improving the flexibility of movement and accelerating wiring. It can also be done as follows... Figure 7 As shown, a boss 901 is provided on the top side of the cylindrical sleeve 9. The boss 901 is in sliding contact with the inner top surface of the cover 2 to guide the clamping plate 7 to slide more smoothly in the corresponding sub-channel 5.

[0055] In the above design, to intuitively grasp the compression amount of the cylindrical spring 12, that is, to intuitively control the degree of clamping of the cable, and to facilitate setting different compression amounts for different cables when necessary, a feature can be added to the outer wall of the cylindrical sleeve 9, such as... Figure 4 As shown, a shallow groove (not shown in the figure) is provided in a direction parallel to the axial direction. The bottom of the shallow groove is provided with several scale lines 902 indicating the length along its extension direction. Based on the relationship between the spring force and the amount of deformation, the control amount of the clamping degree can be intuitively grasped.

[0056] The third embodiment of this application, based on the foregoing embodiments, further optimizes the design by ensuring that each sub-channel 5 is relatively isolated from each other. That is, after the cables are installed, the aforementioned gap will not appear; this gap only appears during cable laying. For detailed technical solutions, please refer to [link / reference]. Figures 8-9 :

[0057] In this embodiment, on the inner top surface of the cover 2, as shown... Figure 8 Several upper partitions 18 are fixedly arranged vertically opposite the bottom partition 3. A sliding plate 19 is vertically slidably installed inside the bottom of each upper partition 18. A connecting post 20 is vertically fixed to the bottom of the sliding plate 19. Figure 20As shown, the connecting post 20 includes a sliding post 2002 and a threaded post 2001, which are rotatably mounted relative to each other. The threaded post 2001 is located at the upper part, and the threaded post 2001 and the sliding post 2002 can be connected as follows: Figure 20 The threaded post 2001 is threaded onto the bottom of the slide plate 19, and the sliding post 2002 is slidably mounted inside the top of the bottom partition plate 3 and connected to the tension spring 21 inside the bottom partition plate 3. The tension spring 21 allows the slide plate 19 to rotate relative to the bottom of the slide plate 19 when not in use. Figure 8 As shown, the upper partition 18, slide plate 19, and bottom partition 3 are spliced ​​together to form a single plate, dividing the wiring channel into several non-interconnected sub-channels 5. In the first embodiment, the tops of these sub-channels 5 are connected, mainly to facilitate the installation of the adjusting rod 4 and to allow the adjusting rod 4 to pass unobstructed within the wiring tube. In this embodiment, however, these sub-channels 5 are normally not connected. The structure of the bottom partition 3 can be as follows: Figure 12 As shown, a rectangular groove is provided at the top, and the bottom of the groove at both ends has a blind hole for installing the tensile spring 21 and the connecting post 20. In specific implementations, it can also be done as follows: Figures 13-14 As shown, the length of the skateboard 19 is made to match the length of the two partitions.

[0058] When the skateboard 19 is pressed further into the upper partition 18, as Figure 9 As shown, this allows the connecting post 20 to be partially pulled out of the bottom partition 3, so that a gap is formed between the slide plate 19 and the bottom partition 3. Figure 11 A gap 31 (analogous to the previously mentioned interval space) is shown, through which the adjusting rod 4 can pass, allowing it to move forward unimpeded along the length of the cable threading hole. After the cable is threaded, the cable gripping assembly is removed from the cable threading tube, and the sliding plate 19 automatically slides down to the top of the bottom partition 3, thus closing the gap 31. In practice, when inserting the cable gripping assembly into one end of the cable threading tube, a tool can be used to clamp the corresponding sliding plate 19 to pull it out from the bottom partition 3, thereby forming the gap 31, and so on. Figure 20The threaded post 2001 shown is unscrewed from the bottom of the slide plate 19, or the threaded post 2001 can be removed from the slide plate 19 first. The adjusting rod 4 is then inserted into the bottom housing 1 through the space between the top of all the threaded posts 2001 and the slide plate 19. When inserting the adjusting rod 4, ensure that each cable is aligned with its corresponding sub-channel 5. The adjusting rod 4 can then be positioned within the aforementioned gap 31 and slide along it. To facilitate installation, the adjusting rod 4 can be slightly tilted during insertion, and the connecting posts 20 can be pressed down. After the adjusting rod 4 and its related components are inside the bottom housing 1, the threaded posts 2001 are screwed back into and fixed to the slide plate 19. When the device, carrying the cable, moves to the other end of the cable conduit, the above process is repeated: the threaded posts 2001 are removed to allow the device to be pulled out from the bottom partition 3, thus allowing the adjusting rod 4 to slide smoothly out of the cable conduit to remove the cable gripping assembly. As for the slide plate 19 sliding out of the bottom partition 3, it can be clamped at both ends and pulled outwards towards the top of the bottom partition 3. In specific operation, after the cable gripping assembly clamps the corresponding cable with the clamping plate 7, it is placed into the cable passage formed by the cover shell 2 and the bottom shell 1. The overall structure of the cable gripping assembly remains relatively unchanged in the cable passage, and it moves forward with the cable.

[0059] In the above embodiments, such as Figure 11 Between each pair of adjacent bidirectional threaded rod segments 401 on the adjusting rod 4, there is a smooth rod segment 402. Under the action of the aforementioned tensile spring 21, the smooth rod segment 402 makes smooth contact with the sliding plate 19 and the bottom partition plate 3 on its upper and lower sides, respectively, and slides forward between them. In order to reduce the width of the aforementioned gap 31, during manufacturing, such as Figure 18 Ideally, the diameter of the smooth rod segment 402 should be smaller than the diameter of the bidirectional threaded rod segment 401, and the axial length of both should be greater than the thickness of the slide plate 19 and the bottom partition plate 3.

[0060] To facilitate a more stable and reliable installation of the adjusting rod 4 inside the conduit, or to make the adjusting rod 4 more stable and reliable inside the base shell 1, such as... Figures 15-16 Each end of the adjusting rod 4 has a slot 25, and a compression spring 24 is installed in the slot 25. A rolling bearing 26 or a slider is installed on a cylindrical plug 22. One end of the plug 22 is inserted into the slot 25 through a plate 23 and connected to the compression spring 24. The end face of the other end is a raised spherical curved surface 2201, which makes smooth contact with the side wall of the guide groove 32. During installation, the adjusting rod 4 is set roughly along the width direction of the bottom shell 1. Then, the two ends are aligned with the two guide grooves 32, and each pair of clamping plates 7 is aligned between the corresponding pair of bottom partitions 3. The clamping plates 7 and the adjusting rod 4 are then pressed in.

[0061] The fourth embodiment of this application specifically describes a cable laying method, which mainly uses the cable laying device in the above embodiments for wiring, and includes the following steps during operation:

[0062] First, place the ends of the cables to be threaded one by one between the corresponding pairs of clamps 7. Then, rotate the adjusting rod 4 until the pairs of clamps 7 no longer come into contact with each other; at this point, the clamps 7 will clamp all the cables. Then... Figure 17 As shown, an anti-rotation block 27 is rotatably fitted onto the adjusting rod 4. One side of the anti-rotation block 27 is a rotation-limiting plane 2701, and the other side is an arc surface with a threaded hole. The anti-rotation block 27 is rotated until its rotation-limiting plane 2701 is in contact with the end face of the opposite partition plate. Here, the partition plate refers to the upper partition plate 18 or the bottom partition plate 3. Then, a locking screw 28 is screwed into the threaded hole and pressed against the adjusting rod 4 to achieve a fixed connection between the anti-rotation block 27 and the adjusting rod 4. Since the rotation-limiting plane 2701 is in contact with the top face of the partition plate, the adjusting rod 4 cannot rotate. Consequently, when the cable gripping assembly is pulled to move horizontally, the pairs of clamping plates 7 will not move away from each other, making it difficult to loosen the cable and ensuring the reliability of the clamping.

[0063] After all the cables are clamped, a pull rope 6, which is pre-installed in the cable passage of the conduit, is attached to the cable gripping assembly, for example, to the adjusting rod 4. Then, the entire cable gripping assembly holding the cables is inserted into one end of the cable passage, and the pull rope 6 is pulled at the other end of the conduit. This allows the cable gripping assembly to move with the evenly arranged cables in the corresponding sub-channel 5, achieving automatic and rapid cable threading. This allows each group of cables to be laid in the corresponding sub-channel 5, achieving the purpose of one-time wiring.

[0064] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A cable laying device comprising a cable tube, characterized in that, the cable tube comprises a bottom shell (1) and a cover shell (2), the inside of the bottom shell (1) is provided with a plurality of bottom partitions (3) spaced from the inner top surface of the cover shell (2), when the cover shell (2) covers the bottom shell (1), the bottom partitions (3) divide the cable passage surrounded by the cover shell (2) and the bottom shell (1) into a plurality of sub-passages (5); further comprising a cable gripping assembly for gripping a plurality of cables, the cable gripping assembly comprises an adjusting rod (4) installed across the cable passage above the bottom partitions (3), the adjusting rod (4) has a plurality of two-way threaded rod segments (401), each two-way threaded rod segment (401) is threadedly connected with two oppositely arranged clamping plates (7), each pair of clamping plates (7) is slidingly and lengthwise installed in the sub-passage (5); the top of the clamping plate (7) has a lug plate (8), the top of the lug plate (8) is fixed with a cylindrical sleeve (9) which is parallel to the adjusting rod (4), a threaded cylinder (11) is coaxially and rotatably installed in the cylindrical sleeve (9), the threaded cylinder (11) is threadedly installed outside the two-way threaded rod segment (401), one end of the threaded cylinder (11) extends out of the cylindrical sleeve (9), the other end of the threaded cylinder (11) has an annular stepped portion (1101) located in the cylindrical sleeve (9), the annular stepped portion (1101) and the inner end surface of the end of the cylindrical sleeve (9) for the threaded cylinder (11) to extend out are connected by a cylindrical spring (12), the cylindrical spring (12) is pressed by an annular pressing plate (13), the annular pressing plate (13) is axially pressed by a plurality of studs (14) arranged in an annular array at the end of the cylindrical sleeve (9), the end of the cylindrical sleeve (9) outside the threaded cylinder (11) is coaxially fixed with a cylindrical gear (15), all the cylindrical gears (15) are engaged with an internal gear (16), the internal gear (16) is coaxially and integrally arranged on the inner side wall of an adjusting sleeve (10), the adjusting sleeve (10) is threadedly fitted outside the cylindrical sleeve (9), and when the adjusting sleeve (10) is twisted, all the studs (14) move synchronously in the axial direction; the inner top surface of the cover shell (2) is fixed with a plurality of upper partitions (18) which are vertically opposite to the bottom partitions (3) one by one, the bottom of the upper partition (18) is vertically slidingly installed with a sliding plate (19), a connecting column (20) is vertically fixed at the bottom of the sliding plate (19), the connecting column (20) comprises a sliding column (2002) and a threaded column (2001) which are coaxially and oppositely connected, the sliding column (2002) is slidingly and fittingly inserted into the top of the bottom partition (3) and connected with a tensile spring (21) in the bottom partition (3), the threaded column (2001) is threadedly connected with the bottom of the sliding plate (19); the tensile spring (21) makes the upper partition (18), the sliding plate (19) and the bottom partition (3) joint together as a plate in a non-use state, so as to divide the cable passage into a plurality of sub-passages (5) which are not connected with each other. When the sliding plate (19) is further pressed towards the upper partition (18), the connecting column (20) is partially pulled out of the bottom partition (3), so that a gap (31) is formed between the sliding plate (19) and the bottom partition (3), and the adjusting rod (4) can pass through the gap (31) to move forward along the length direction of the through hole without any obstruction.

2. The cable laying device according to claim 1, wherein, a pulling rope (6) is arranged in a sub-passage (5) in the center of the through passage, and the pulling rope (6) is connected with any one of the adjusting rod (4), the clamping plate (7) and the lug plate (8) to pull all the clamping plates (7) to slide forward synchronously in the through passage.

3. The cable laying device according to claim 1, wherein, guide grooves (32) are arranged on the two opposite inner side walls of the cover shell (2) or the bottom shell (1) along the length direction, and the end part of the adjusting rod (4) is installed with a rolling bearing (26) or a sliding block in the guide grooves (32) to move forward along the guide grooves (32).

4. The cable laying device according to claim 1, wherein, the bottom end of the clamping plate (7) is provided with a plurality of rollers (29) which are in rolling tangential contact with the inner bottom surface of the sub-passage (5), and the top side of the cylindrical sleeve (9) has a boss (901) which is in sliding contact with the inner top surface of the cover shell (2).

5. The cable laying device according to claim 1, wherein, a shallow groove is arranged on the outer side wall of the cylindrical sleeve (9) along the direction parallel to the axial direction, and a plurality of length indicating scale lines (902) are arranged on the groove bottom along the extending direction of the shallow groove.

6. The cable laying device according to claim 1, wherein, smooth rod sections (402) are arranged between every two adjacent bidirectional threaded rod sections (401) on the adjusting rod (4), and the upper and lower sides of the smooth rod sections (402) are in smooth contact with the sliding plate (19) and the bottom partition (3) respectively.

7. The cable laying device according to claim 6, wherein, the diameter of the smooth rod section (402) is smaller than the diameter of the bidirectional threaded rod section (401), and the axial length of the smooth rod section (402) is greater than the thickness of the sliding plate (19) and the bottom partition (3).

8. The cable laying device according to claim 3, wherein, each end of the adjusting rod (4) has a slot (25) in which a compression spring (24) is arranged, and the rolling bearing (26) or the sliding block is arranged on a cylindrical shaft plug (22), one end of the shaft plug (22) is inserted into the slot (25) through an insertion plate (23) and connected with the compression spring (24), and the other end of the shaft plug (22) has a convex spherical surface (2201) which is in smooth contact with the side wall of the guide groove (32).

9. A method of cable laying, characterized by, The cable laying device according to any one of claims 1-8 is used for wiring, and the operation includes the following steps: S1, first put the end of several cables to be worn between the corresponding two clamping plates (7), and then rotate the adjusting rod (4) until each pair of clamping plates (7) are not close to each other, the clamping plate (7) will clamp all the cables; S2, rotate a rotation stop block (27) on the adjusting rod (4) to fit, one side of the rotation stop block (27) is a rotation limiting plane (2701), the rest of the side is a circular arc surface, and the circular arc surface has a threaded hole, rotate the rotation stop block (27) to the position where the rotation limiting plane (2701) is in contact with the end face of the bottom partition plate (3) or the upper partition plate (18) opposite, then screw a locking screw (28) into the threaded hole and top on the adjusting rod (4), to realize the fixed connection of the rotation stop block (27) and the adjusting rod (4) at this time; S3, tie a pull rope (6) previously reserved in the threading channel of the threading pipe to the grabbing wire assembly at this time, and then put the grabbing wire assembly holding the cables into one end of the threading channel; S4, pull the pull rope (6) at the other end of the threading pipe, so that the grabbing wire assembly with evenly arranged cables is threaded in the corresponding subchannel (5), so that each group of cables is laid in the corresponding subchannel (5), achieving the purpose of one-time wiring.

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