Normally-closed cable anti-rolling device

Abstract

The utility model relates to the technical field of cable laying and protection, in particular to a normally closed cable anti-rolling device, which comprises a plurality of anti-rolling cable seats continuously spliced on a basic surface to form a cable channel and a rolling surface; the cable seat is provided with a normally closed cover plate, and the cover plate seals the cable channel in a normal state and is connected with the rolling surface to form a supporting surface; the uncovering leading-in assembly comprises a wire spool used for winding a cable and a guiding piece used for guiding the cable to roll up or drop down, and the guiding piece is matched with the cover plate and opens the cover plate through the switch structure to guide the cable to roll up or closes the cover plate to guide the cable to drop down in the moving process. In a normal state, the cover plate covers the cable channel and achieves covering protection, the cable channel is opened in the advancing process of the electric equipment, the cable winding and unwinding convenience is improved, and the electric equipment automatically turns over through the rear cover plate and seals the cable channel. The cable is protected and prevented from being damaged, and the power supply safety and stability can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying and protection, and in particular to a normally closed cable anti-crushing device. Background Art

[0002] For outdoor equipment operating in complex working environments such as construction sites, vehicle access roads, and personnel walking passages, reliable power supply is the primary technical condition to ensure the safe operation of the equipment. For example, the movable gantry cranes at hydropower stations and docks can continuously move back and forth to adjust the working position according to the actual work needs on site. They are used for lifting equipment, material transportation, maintenance assistance and other production work. They are commonly used equipment for outdoor lifting operations. Therefore, the safe operation of gantry cranes is directly related to the safe production of hydropower stations and docks. Therefore, the safe operation of gantry cranes is particularly important. At present, there are two common power supply methods for gantry cranes: sliding wire and cable power supply. When using sliding wire power supply, it is necessary to set up a power supply sliding wire along the line of the operation site to provide power supply to the equipment through the contact shoe method. This method takes up more on-site operation space, and the sliding wire is exposed in the operation area, which poses certain safety risks. Therefore, outdoor gantry cranes mostly use cables to provide power supply to the equipment. When using cables for power supply, if all cables are covered and protected, it is not conducive to cable retraction and release, which is extremely inconvenient during the reciprocating movement of the gantry crane; when the gantry crane is used for retracting and releasing cables, the cables are directly exposed to the ground or foundation surface, and the reel is driven by the motor to retract and release the cables according to the walking direction to ensure the safety of the gantry crane power supply. However, in this process, there are unsafe situations such as the cables are easily crushed and the reel parts are easily worn to the outer insulation of the cables, which poses a safety hazard.

[0003] It can be seen that there is still room for improvement in the cable power supply solution, and it should be optimized to improve the protection of the cable, avoid cable wear or damage by rolling when meeting the requirements of synchronous power supply and cable retracting and releasing, so as to improve the safety and reliability of power supply. Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the existing technology. Utility Model Content

[0004] In order to overcome at least one of the defects mentioned above, the utility model proposes a normally closed cable anti-crushing device, which protects cables laid on the ground to prevent them from being crushed or worn, and realizes cable retraction and release in conjunction with the movement of electrical equipment, thereby making the cables safer and more reliable during the power supply process.

[0005] In order to achieve the above purpose, the anti-crushing device disclosed in the utility model can adopt the following technical solutions:

[0006] A normally closed cable anti-crushing device, comprising:

[0007] Several anti-crushing cable seats are continuously spliced ​​and laid on the foundation surface along the direction of the cable to form a cable channel, and at the same time form a crushing surface to support the passage of vehicles to protect the cable; a normally closed cover is provided on the cable seat, which closes the cable channel under normal conditions and connects with the crushing surface to form a supporting surface;

[0008] The cover opening and introduction component is located above the anti-crushing cable seat and moves with the electrical equipment. The cover opening and introduction component includes a winding drum for winding the cable and a guide for guiding the cable to be wound up. The guide cooperates with the cover plate and opens the cover plate through a switch structure during the reciprocating movement to guide the cable to be wound up or lowered, and then moves to avoid the cover plate to maintain its position to guide the cover plate to close under its own weight.

[0009] The cable anti-crushing device disclosed above accommodates and protects the cable through the anti-crushing cable seat to prevent the cable from being crushed and damaged by passing vehicles; at the same time, the cable is wound and unwound in coordination with the walking movement of the electrical equipment. During the winding and unwinding process, the cover plate is opened by guiding the cover introduction component to make the winding and unwinding of the cable smooth and safe, avoiding the wear of the cable, and at the same time, the cables in other positions except the cover introduction component are covered by the cover plate to form an anti-crushing structure. The cable anti-crushing device provided in the utility model can provide multi-faceted protection for the cable in combination with the working movement process of the electrical equipment.

[0010] Furthermore, in the utility model, the structure of the anti-crushing cable seat can be constructed in various forms, which is not limited to a single one. An optimization is performed here and one of the feasible options is proposed: the anti-crushing cable seat includes two anti-crushing bases arranged opposite to each other, a gap is reserved between the anti-crushing bases to form a cable channel, and the cover plate is flipped and arranged on the anti-crushing base and the cable channel is opened or closed by flipping; a plurality of cover plate connecting seats are arranged on the anti-crushing base, and cover plate connecting grooves are formed between the cover plate connecting seats, the bottom of the cover plate is cooperatively connected with the cover plate connecting seat, and an opening limit portion and a closing limit portion for limiting the flipping angle of the cover plate are provided at the cover plate connecting groove. When such a scheme is adopted, the connecting shaft can pass through the cover plate and the cover plate connecting seat to form a rotational fit; at the same time, the opening limit part is used to limit the maximum angle of the cover plate to be flipped open, and the angle is an acute angle. The purpose is to use the self-weight of the cover plate to achieve automatic flipping back to close the cable channel; the closing limit part is used to limit the support of the cover plate when it is flipped back, so that the cover plate flips and stays at a specified angle to provide a certain support force, forming an anti-crushing structure to protect the cable.

[0011] Furthermore, in the process of opening the cover plate under force, in order to protect the cover plate and prevent it from being damaged by collision, the structure of the cover plate can be constructed in various forms, which are not limited to the only one. Here, optimization is made and one feasible option is proposed: the side of the cover plate is provided with a cover plate switch roller group and a cover plate retaining roller group, and the cover plate switch roller group and the cover plate retaining roller group are used to cooperate with the guide to open the cover plate and maintain the open state of the cover plate. When such a solution is adopted, a single cover plate switch roller and a cover plate retaining roller can be provided, or multiple cover plate switch rollers and multiple cover plate retaining rollers can be provided.

[0012] Furthermore, in order to facilitate the setting of the cover plate switch roller and the cover plate retaining roller, the structure of the cover plate can be optimized, which can be constructed in various forms and is not limited to a single form. Here, an optimization is made and one of the feasible options is proposed: the side of the cover plate is formed with a plurality of mounting grooves, which are used to install the switch roller and the retaining roller respectively, and the switch roller is tilted and used to drive the cover plate to open or guide the cover plate to close when subjected to force. When such a scheme is adopted, the switch roller and the retaining roller both adopt long strip roller shafts. When the guide member contacts the cover plate, the guide member first contacts and pushes the switch roller, so that the cover plate opens upwards. When the guide member continues to move forward, it pushes the retaining roller so that the cover plate maintains the maximum opening degree. When the guide member moves forward to a certain distance, the cover plate gradually flips along the end of the guide member and closes the cable channel.

[0013] Furthermore, the structure of the cover plate can be constructed in a variety of structures, which are not limited to the only one. Here, an optimization is made and one feasible option is proposed: the top of the cover plate is bent toward the cable channel to form a convex support surface. When the two relative cover plates are turned over and matched to close the cable channel, the two cover plates form an arched support surface and the bent portion of the cover plate is located at the top of the support surface to form a horizontal surface. When such a solution is adopted, the support surface formed by the cover plate is stronger and can achieve a better support effect.

[0014] Furthermore, in the present invention, the cable is guided to the winding drum by a guide member to reduce friction damage between the cable and the side structure. The guide member can be constructed in a variety of forms, which are not limited to a single form. Here, an optimization is made and one of the feasible options is proposed: the guide member includes a guide frame, which forms a first guide portion and a second guide portion and is respectively arranged in the direction of forward and backward movement of the electrical equipment. The first guide portion and the second guide portion both include an opening structure that cooperates with the cover plate. The opening structure forms an opening anti-injury member and an opening abutment surface for abutting and opening the cover plate, and a maintaining abutment surface for abutting and keeping the cover plate open. When such a scheme is adopted, the opening anti-injury member includes an anti-injury ball, and the opening abutment surface is symmetrically arranged on both sides of the opening structure, and the maintaining abutment surface is smoothly connected with the opening abutment surface.

[0015] Furthermore, in the present invention, in order to better guide the cover to be opened and maintain the opening degree of the cover, the structure of the guide can be optimized and the following feasible option is proposed: the maintaining abutment surface is smoothly transitionally connected with the cover opening abutment surface, and the maintaining abutment surface extends from the cover opening abutment surface of the first guide part to the cover opening abutment surface of the second guide part. When such a solution is adopted, the maintaining abutment surface on the guide spans the entire length of the guide, and can smoothly drive the cover to open during the forward and backward processes.

[0016] Furthermore, the guide structure provided in the utility model is not limited to a single one, and it can be constructed in a variety of forms. Here, an optimization is made and one of the feasible options is proposed: a swing guard is provided between the first guide part and the second guide part, and the swing guard includes a swing frame provided on the guide frame, and two protection wheels are provided on the swing frame to form a guide hole for the cable to pass through. When such a scheme is adopted, the cable extends from the cable channel through the first guide part or the second guide part, and can be better aligned with the winding drum after passing through the guide hole. The first guide part and the second guide part include two guide arms respectively formed from the guide frame, and guide wheels are provided on the guide arms. The cable bypasses the guide wheels and rolls with the guide wheels to avoid wear of the cable; when the cable enters the guide hole, it also rolls with the protection wheel, which also avoids wear of the cable; grooves are provided on the guide wheel and the protection wheel to cooperate with the cable, ensuring that the cable maintains a gap with the guide frame or swing frame on the side to avoid friction. Furthermore, in order to better guide the cable to the winding wheel, the structure of the guide frame is adjusted and optimized. Here, an optimization is performed and one of the feasible options is proposed: two alignment rollers are arranged in parallel on the guide frame, and an alignment channel is formed between the alignment rollers and used to align the cable with the winding reel. When such a solution is adopted, the gap width between the alignment rollers is the width of the alignment channel, which is the same as the diameter of the cable, thereby improving the restriction on the cable and making the alignment direction of the cable better.

[0017] The above content discloses the structure of the cable protection device. The utility model also provides a method for implementing cable anti-crushing by using the structure, as described below:

[0018] A method for protecting a power supply cable of a mobile power-consuming device, using the cable protection device described above; comprising:

[0019] An anti-crush cable seat is provided to form a cable channel, and the power supply cable is arranged in the cable channel and extends to the cover introduction component;

[0020] Under normal circumstances, the cover plate of the anti-crush cable seat closes the cable channel. When the electrical equipment moves along the cable channel, the opening abutment surface and the maintaining abutment surface of the guide cooperate to push the cover plate to gradually open the cable channel and guide the cable to the winding drum for winding;

[0021] When the electrical equipment moves over the cover plate, the cover plate gradually rotates along the maintaining abutment surface and the opening abutment surface to close the cable channel.

[0022] Compared with the prior art, some beneficial effects of the technical solution disclosed in the utility model include:

[0023] The utility model accommodates the cables by constructing a cable channel to avoid being crushed and damaged. Under normal circumstances, the cover plate covers and realizes the cable channel. When the electrical equipment moves forward and backward, the cover plate is pushed to open the cable channel to realize the retraction and release of the cables. When the electrical equipment passes through, the cover plate automatically flips over and closes the cable channel. Therefore, the cable is protected and the damage of the cable is avoided, which can effectively improve the safety and stability of power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 Schematic diagram of the structure of the cable holder and the cable to prevent crushing.

[0026] Figure 2 Schematic diagram of the structure of the anti-crushing base.

[0027] Figure 3 for Figure 2 Schematic diagram of the cross-section AA in the figure.

[0028] Figure 4 It is a schematic diagram of the structure of the cover plate (the cover plate switch roller group and the cover plate retaining roller group are not installed).

[0029] Figure 5 A schematic cross-sectional view of a guide member.

[0030] Figure 6 A cross-sectional schematic diagram of a guide frame.

[0031] Figure 7 It is a schematic diagram of the structure of the swing guard.

[0032] Figure 8 It is a structural schematic diagram of the cooperation between the guide and the anti-crush cable seat.

[0033] Fig. 9 Schematic diagram of the installation environment for the anti-crushing device.

[0034] Fig.10 for Fig. 9A schematic diagram of the enlarged local structure at point A in the middle.

[0035] The meanings of the various symbols in the above drawings are:

[0036] 1. Electrical equipment; 11. Cable; 12. Wire reel; 21. Anti-crushing base; 2101. Connection hole; 2102. Shaft hole; 2103. Cover plate connection groove; 22. Cover plate; 2201. Connection seat; 2202. Through hole; 2203. Mounting groove; 23. Connection shaft; 24. Retaining roller; 25. Roller shaft; 26. Switch roller; 27. Roller shaft hole; 31. Guide frame; 3101. Guide wheel; 31 02. Guide arm; 3103. Connecting rod; 32. Cover opening structure; 3201. Anti-injury ball; 3202. Cover opening contact surface; 3203. Cover opening maintaining surface; 3204. Extension arm; 33. Swinging protective part; 3301. Swinging sheet; 3302. Axle; 3303. Locking nut; 3304. Axle; 33065. Retaining ring; 3306. Bearing; 3307. Protection wheel; 34. Alignment roller. DETAILED DESCRIPTION

[0037] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0038] In view of the fact that the cable laying operation in the prior art is prone to being crushed and worn, which affects the service life and reduces the safety and reliability of use, the following embodiments are optimized to solve the defects in the prior art.

[0039] Example 1

[0040] This embodiment provides a normally closed cable anti-crushing device, which is intended to provide multiple protections for the cable 11, prevent it from being crushed after it is laid, and avoid bending, wear, etc. during the movement of the electrical equipment 1, thereby effectively ensuring the safety and reliability of the cable 11.

[0041] Specifically, Figures 1 to 10 As shown, as the power supply cable protection device disclosed in this embodiment, Figure 1 to Figure 4 As shown, one of its structures includes:

[0042] A number of anti-crushing cable 11 seats are continuously spliced ​​and laid on the foundation surface along the direction of the cable 11 to form a cable 11 channel, and at the same time form a crushing surface to support the passage of vehicles to protect the cable 11; a normally closed cover plate 22 is provided on the cable 11 seat, and the cover plate 22 closes the cable 11 channel under normal conditions and connects with the crushing surface to form a supporting surface.

[0043] In this embodiment, the structure of the anti-crushing cable 11 seat can be constructed in various forms, which are not limited to a single form. This embodiment is optimized and adopts one of the feasible options: the anti-crushing cable 11 seat includes two anti-crushing bases 21 arranged opposite to each other, and a gap is reserved between the anti-crushing bases 21 to form a cable 11 channel, and the cover plate 22 is flipped and arranged on the anti-crushing base 21 and the cable 11 channel is opened or closed by flipping; a plurality of cover plate 22 connecting seats 2201 are arranged on the anti-crushing base 21, and cover plate connecting grooves 2103 are formed between the cover plate 22 connecting seats 2201, and the bottom of the cover plate 22 is cooperatively connected with the cover plate 22 connecting seat 2201, and an opening limit portion and a closing limit portion for limiting the flipping angle of the cover plate 22 are provided at the cover plate connecting groove 2103. When such a solution is adopted, the connecting shaft 23 can pass through the cover plate 22 and the cover plate 22 connecting seat 2201 to form a rotational fit; at the same time, the opening limit part is used to limit the maximum angle of the cover plate 22 to flip open, and the angle is an acute angle. The purpose is to use the self-weight of the cover plate 22 to achieve automatic flipping back to close the cable 11 channel; the closing limit part is used to limit the support of the cover plate 22 when it flips back, so that the cover plate 22 flips and stays at a specified angle to provide a certain support force, forming an anti-crushing structure to protect the cable 11.

[0044] Preferably, Figure 2 As shown, an axial hole 2102 is provided on the connecting seat 2201 of the cover plate 22, and the connecting shaft 23 is provided in the axial hole 2102.

[0045] Preferably, the anti-crushing base 21 is provided with a plurality of connection holes 2101 , and the connection holes 2101 are provided with connections for fixing the anti-crushing base 21 to the foundation surface.

[0046] Preferably, Figure 4 As shown, a corresponding connecting seat 2201 is provided on the cover plate 22, the connecting seat 2201 is fitted into the cover plate connecting groove 2103 and is provided with a through hole 2202 corresponding to the shaft hole 2102, and the connecting shaft 23 passes through the through hole 2202 and the shaft hole 2102 in sequence.

[0047] In the process of the cover plate 22 being opened by force, in order to protect the cover plate 22 and prevent it from being damaged by collision, the structure of the cover plate 22 can be constructed in various forms, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the side of the cover plate 22 is provided with a cover plate switch roller group and a cover plate retaining roller group, and the cover plate switch roller group and the cover plate retaining roller group are both used to cooperate with the guide to open the cover plate 22 and maintain the open state of the cover plate 22. When such a solution is adopted, a single cover plate 22 switch roller 26 and a cover plate 22 retaining roller 24 can be provided, and multiple cover plate 22 switch rollers 26 and multiple cover plate 22 retaining rollers 24 can also be provided.

[0048] In order to facilitate the setting of the switch roller 26 of the cover plate 22 and the retaining roller 24 of the cover plate 22, the structure of the cover plate 22 can be optimized, which can be constructed in various forms and is not limited to the only one. This embodiment optimizes and adopts one of the feasible options: Figure 4 As shown, the side of the cover plate 22 is formed with a plurality of mounting grooves 2203, which are used to mount the switch roller 26 and the retaining roller 24, respectively, and the switch roller 26 is tilted and used to drive the cover plate 22 to open or guide the cover plate 22 to close when subjected to force. When such a scheme is adopted, the switch roller 26 and the retaining roller 24 both adopt a long strip roller shaft 25. When the guide member contacts the cover plate 22, the guide member first contacts and pushes the switch roller 26, so that the cover plate 22 opens upward. The guide member continues to move forward and pushes the retaining roller 24 so that the cover plate 22 maintains the maximum opening degree. When the guide member moves forward to a certain distance, the cover plate 22 gradually turns over along the end of the guide member and closes the cable 11 channel.

[0049] Preferably, a roller shaft hole 27 is provided on the cover plate 22 , and a roller shaft 25 is provided in the mounting groove 2203 to match the roller shaft hole 27 , and the switch roller 26 and the retaining roller 24 are respectively connected and matched to the roller shaft 25 .

[0050] The structure of the cover plate 22 can be constructed in a variety of structures, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: Figure 4 As shown, the top of the cover plate 22 is bent toward the cable 11 passage to form a convex support surface. When the two opposite cover plates 22 are turned over and matched to close the cable 11 passage, the two cover plates 22 form an arched support surface and the bent portion of the cover plate 22 is located at the top of the support surface to form a horizontal surface. When such a solution is adopted, the support surface formed by the cover plate 22 is stronger and can provide a better support effect.

[0051] like Figures 5 to 8 As shown, as the normally closed cable anti-crushing device provided in this embodiment, its second structure includes:

[0052] like Fig. 9 , Fig.10 As shown, the cover opening and introduction component is located above the anti-crushing cable 11 seat and moves with the electrical equipment 1. The cover opening and introduction component includes a winding drum 12 for winding the cable 11, and a guide for guiding the cable 11 to be wound up. The guide cooperates with the cover plate 22 and opens the cover plate 22 through the switch structure during the reciprocating movement to guide the cable 11 to be wound up or lowered, and then moves to avoid the cover plate 22 to maintain its position to guide the cover plate 22 to close by its own weight.

[0053] In this embodiment, the cable 11 is guided to the winding drum 12 by a guide to reduce the friction damage between the cable 11 and the side structure. The guide can be constructed in a variety of forms, which are not limited to the only form. Here, an optimization is performed and one of the feasible options is proposed: Figure 5 , Figure 6 , Figure 7 As shown, the guide member includes a guide frame 31, which forms a first guide part and a second guide part and is respectively arranged in the direction of the forward and backward movement of the electrical equipment 1, and the first guide part and the second guide part both include a cover opening structure 32 that cooperates with the cover plate 22, and the cover opening structure 32 is formed with a cover opening anti-injury member and a cover opening abutment surface 3202 for abutting and opening the cover plate 22, and a maintenance abutment surface for abutting and keeping the cover plate 22 open. When such a scheme is adopted, the cover opening anti-injury member includes an anti-injury ball 3201, and the cover opening abutment surface 3202 is symmetrically arranged on both sides of the cover opening structure 32, and the maintenance abutment surface is smoothly connected with the cover opening abutment surface 3202.

[0054] Preferably, the first guide part and the second guide part both include a guide arm 3102 and form an "eight" structure. The guide frame 31 is connected to the electric device 1 through a connecting rod 3103 and moves synchronously with the electric device 1 .

[0055] In this embodiment, in order to better guide the opening of the cover plate 22 and maintain the opening degree of the cover plate 22, the structure of the guide member can be optimized and the following feasible options can be adopted: the maintaining abutment surface is smoothly transitionally connected with the cover opening abutment surface 3202, and the maintaining abutment surface extends from the cover opening abutment surface 3202 of the first guide part to the cover opening abutment surface 3202 of the second guide part. When such a solution is adopted, the maintaining abutment surface on the guide member spans the entire length of the guide member, and can smoothly drive the cover plate 22 to open during the forward and backward processes.

[0056] Preferably, an extension arm 3204 is provided between the cover opening structure 32 of the first guide portion and the cover opening structure 32 of the second guide portion to continuously provide a maintaining abutment surface, thereby smoothly transitionally connecting the maintaining abutment surface and the cover opening abutment surface 3202 .

[0057] The guide structure provided in this embodiment is not limited to a single one, and it can be constructed in various forms. This embodiment is optimized and adopts one of the feasible options: a swing guard 33 is provided between the first guide portion and the second guide portion, and the swing guard 33 includes a swing frame provided on the guide frame 31, and two protection wheels 3307 are provided on the swing frame to form a guide hole for the cable 11 to pass through. When such a solution is adopted, the cable 11 extends from the cable 11 channel through the first guide portion or the second guide portion, and can better align the winding drum 12 after passing through the guide hole. The first guide part and the second guide part include two guide arms 3102 respectively formed from the guide frame 31, and the guide arms 3102 are provided with guide wheels 3101. The cable 11 passes over the guide wheels 3101 and rolls with the guide wheels 3101 to avoid wear of the cable 11; when the cable 11 enters the guide hole, it also rolls with the protective wheel 3307 to also avoid wear of the cable 11; grooves are provided on the guide wheel 3101 and the protective wheel 3307 to cooperate with the cable 11, so as to ensure that the cable 11 maintains a gap with the adjacent guide frame 31 or the swing frame to avoid friction.

[0058] In order to better guide the cable 11 to the winding reel, the structure of the guide frame 31 is adjusted and optimized. This embodiment optimizes and adopts one of the feasible options: two alignment rollers 34 are arranged in parallel on the guide frame 31, and an alignment channel is formed between the alignment rollers 34 and used to align the cable 11 with the winding reel 12. When such a solution is adopted, the gap width between the alignment rollers 34 is the width of the alignment channel, which is the same as the diameter of the cable 11, thereby improving the restriction on the cable 11 and making the alignment direction of the cable 11 better.

[0059] Preferably, the guide frame 31 is connected and fixed to the electrical device 1 via a mounting rod and moves synchronously with the electrical device 1 .

[0060] Preferably, in this embodiment, the swing guard 33 includes a swing frame composed of two relatively swing plates 3301 connected together, and the swing frame is equipped with a protection wheel 3307 through an axle 3302; and the upper part of the swing plate 3301 is provided with a bearing 3306 through a connecting shaft 23 and is used to cooperate with the guide frame 31, and a locking nut 3303 and a retaining ring 33065 aligned with the bearing 3306 are provided on the connecting shaft 23.

[0061] The cable 11 protection device disclosed above accommodates and protects the cable 11 through an anti-crushing cable 11 seat to prevent the cable 11 from being crushed and damaged by passing vehicles; at the same time, the cable 11 is wound and unwound in coordination with the movement of the electrical equipment 1. During the winding and unwinding process, the cover 22 is automatically opened by guiding the cover opening introduction component, so that the winding and unwinding of the cable 11 are smooth and safe, avoiding wear of the cable 11.

[0062] Example 2

[0063] The content of the above embodiment 1 discloses the structure of the cable anti-crushing device. This embodiment provides a method for implementing cable protection using the structure, as described below:

[0064] like Figure 8 A method for protecting a power supply cable of a mobile power-consuming device, using the cable protection device described above; comprising:

[0065] An anti-crush cable seat is provided to form a cable channel, and the power supply cable is arranged in the cable channel and extends to the cover introduction component;

[0066] Under normal circumstances, the cover plate of the anti-crush cable seat closes the cable channel. When the electrical equipment moves along the cable channel, the opening abutment surface and the maintaining abutment surface of the guide cooperate to push the cover plate to gradually open the cable channel and guide the cable to the winding drum for winding;

[0067] When the electrical equipment moves over the cover plate, the cover plate gradually rotates along the maintaining abutment surface and the opening abutment surface to close the cable channel.

[0068] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. A normally closed cable anti-crushing device, characterized in that: include: A plurality of anti-crushing cable (11) seats are continuously spliced ​​and laid on the foundation surface along the direction of the cable (11) to form a cable (11) channel, and at the same time form a crushing surface supporting vehicles to pass through to protect the cable (11); a normally closed cover plate (22) is provided on the cable (11) seat, and the cover plate (22) closes the cable (11) channel under normal conditions and connects with the crushing surface to form a supporting surface; The cover opening introduction component is located above the anti-crush cable (11) seat and moves with the electrical equipment (1). The cover opening introduction component includes a winding drum (12) for winding the cable (11) and a guide for guiding the cable (11) to be wound up or lowered. The guide cooperates with the cover plate (22) and opens the cover plate (22) through a switch structure during the reciprocating movement to guide the cable (11) to be wound up or to guide the cable (11) to be lowered.

2. The normally closed cable anti-crushing device according to claim 1 is characterized in that: The anti-crushing cable (11) seat comprises two anti-crushing bases (21) arranged opposite to each other, a gap is reserved between the anti-crushing bases (21) to form a cable (11) channel, and the cover plate (22) is flipped and arranged on the anti-crushing base (21) and the cable (11) channel is opened or closed by flipping; a plurality of cover plate (22) connecting seats (2201) are arranged on the anti-crushing base (21), and cover plate connecting grooves (2103) are formed between the cover plate (22) connecting seats (2201), the bottom of the cover plate (22) is matched and connected with the cover plate (22) connecting seat (2201), and an opening limit part and a closing limit part for limiting the flipping angle of the cover plate (22) are arranged at the cover plate connecting groove (2103).

3. The normally closed cable anti-crushing device according to claim 1 or 2, characterized in that: The side of the cover plate (22) is provided with a cover plate switch roller group and a cover plate retaining roller group, and the cover plate switch roller group and the cover plate retaining roller group are used to cooperate with the guide member to open the cover plate (22) and maintain the open state of the cover plate (22).

4. The normally closed cable anti-crushing device according to claim 3 is characterized in that: The side of the cover plate (22) is formed with a plurality of mounting grooves (2203) for mounting a switch roller (26) and a retaining roller (24), respectively. The switch roller (26) is arranged at an angle and is used to drive the cover plate (22) to open or guide the cover plate (22) to close when subjected to force.

5. The normally closed cable anti-crushing device according to claim 1 or 2, characterized in that: The top of the cover plate (22) is bent toward the cable (11) passage to form an outwardly convex support surface; when the two opposite cover plates (22) are turned over to fit and close the cable (11) passage, the two cover plates (22) form an upwardly arched support surface and the bent portion of the cover plate (22) is located at the top of the support surface to form a horizontal surface.

6. The normally closed cable anti-crushing device according to claim 1 is characterized in that: The guide member comprises a guide frame (31), the guide frame (31) forms a first guide portion and a second guide portion and are respectively arranged in the direction of forward and backward movement of the electrical equipment (1), the first guide portion and the second guide portion both comprise an opening cover structure (32) cooperating with the cover plate (22), the opening cover structure (32) is formed with an opening cover injury prevention member and an opening cover abutment surface (3202) for abutting and opening the cover plate (22), and a maintaining abutment surface for abutting and keeping the cover plate (22) open.

7. The normally closed cable anti-crushing device according to claim 6 is characterized in that: The maintaining abutment surface is smoothly transitionally connected to the cover-opening abutment surface (3202), and the maintaining abutment surface extends from the cover-opening abutment surface (3202) of the first guide portion to the cover-opening abutment surface (3202) of the second guide portion.

8. The normally closed cable anti-crushing device according to claim 6 or 7, characterized in that: A swing guard (33) is provided between the first guide portion and the second guide portion. The swing guard (33) comprises a swing frame provided on the guide frame (31). Two protection wheels (3307) are provided on the swing frame in opposite positions and form a guide hole for the cable (11) to pass through.

9. The normally closed cable anti-crushing device according to claim 6 or 7, characterized in that: Two alignment rollers (34) are arranged in parallel on the guide frame (31), and an alignment channel is formed between the alignment rollers (34) and is used to align the cable (11) and the winding drum (12) for winding.

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