Power assisting device for land laying of power cable

Abstract

The invention relates to the technical field of power cable laying, in particular to a power assisting device for land laying of a power cable. The power assisting device for land laying of the power cable comprises a supporting frame, a fixing device used for being fixed to the cable is arranged on the supporting frame, a front wheel and a rear wheel are further installed on the supporting frame, the supporting frame comprises a transverse rod extending front and back, a front stand column and a rear stand column, the front stand column and the rear stand column are fixedly connected to the front end and the rear end of the transverse rod, and the front wheel is rotationally assembled on the front stand column. The rear wheels are rotationally assembled on the rear stand columns. The supporting frame is of a simple frame type structure, the overall structure is simple, the space around the transverse rods, the front stand columns and the rear stand columns forming the supporting frame is completely vacated, and the transverse rods, the front stand columns and the rear stand columns are not prone to interfering with obstacles when walking on the ground, so that the overall trafficability of the supporting frame is good, the requirement of the supporting frame for the ground condition is not high, and the service life of the supporting frame is prolonged. The method is suitable for most land conditions, thereby improving the construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of power cable laying, in particular to a power assist device for land laying of power cables. Background Art

[0002] Cable laying is an important part of the entire power engineering project construction. It is required that the cable insulation sheath should not be damaged during the cable laying work. However, in actual construction work, cables with larger cross-sections are often very heavy, and it is easy to cause the insulation sheath to wear when directly dragged on the ground. In order to avoid scratching and wear caused by friction between the cable and the ground, cable pulleys are often used in the prior art to assist in cable laying. However, since the cable pulley is only temporarily fixed on the ground to support the cable, the cable pulley is removed after the cable laying is completed. Therefore, the fixed connection strength between the cable pulley and the ground is not particularly high. After the cable pulley is fixed on the ground, the cable laying path is fixed, and the cable moves in the support groove of the cable pulley. The cable itself is very heavy, so when the cable is pulled, a slight deviation will overturn the cable pulley, especially in an environment with poor ground conditions, the cable pulley is more likely to be overturned, which makes the cable laying work more difficult and the construction efficiency is extremely low.

[0003] The Chinese utility model patent with the authorization announcement number CN218732819U discloses a power-assisted vehicle for laying power transmission line cables. The power-assisted vehicle includes a fixed frame, which is a rectangular parallelepiped. A cable clamp for clamping the cable is provided on the upper part of the fixed frame. A plurality of traction wheels are installed at the bottom of the fixed frame. The traction wheels are divided into four groups, and the four groups of traction wheels are arranged at intervals in the front-to-back direction. The power-assisted vehicle is mainly used to support and protect the cable when it is laid in the pipeline. The power-assisted vehicle follows the cable to achieve the purpose of labor saving. However, when the power-assisted vehicle is used for laying cables on land, since the fixed frame is the core mounting frame of the power-assisted vehicle, its volume is much larger than the volume of the bottom traction wheel, the fixed frame is close to the ground, and the fixed frame itself is a rectangular parallelepiped, which leads to high requirements on the ground conditions when the power-assisted vehicle is used. The fixed frame is easily interfered by obstacles and cannot pass smoothly, so there is a problem of poor passability. Summary of the invention

[0004] The object of the present invention is to provide a power assist device for laying power cables on land, so as to solve the problem of poor passability of existing power assist vehicles for laying cables on land.

[0005] In order to achieve the above-mentioned purpose, the power cable land laying assisting device of the present invention adopts the following technical scheme: An assist device for laying power cables on land comprises a support frame, on which a fixing device for fixing to the cable is provided, and on which front wheels and rear wheels are also mounted, the support frame comprising a cross bar extending forward and backward and a front column and a rear column fixedly connected to the front and rear ends of the cross bar, the front wheel being rotatably mounted on the front column, and the rear wheel being rotatably mounted on the rear column.

[0006] Preferably, the front pillar is a U-shaped pillar with an opening facing downward, and the front wheel is rotatably mounted on the open end of the U-shaped pillar. Part of the wheel section of the front wheel extends into the U-shaped space of the U-shaped pillar so that the two parallel sides of the U-shaped pillar form a stop limit for the front wheel from the left and right sides.

[0007] Preferably, the rear pillar comprises a longitudinal rod extending up and down and a connecting rod extending left and right and fixedly connected to the bottom of the longitudinal rod. The rear wheels are provided with two groups, and the two groups of rear wheels are rotatably assembled on both ends of the connecting rod respectively.

[0008] Preferably, the fixing devices are provided in two groups, wherein one group of fixing devices is located directly above the front pillars, and the other group of fixing devices is located directly above the rear pillars.

[0009] Preferably, the fixing device is a cable clamp.

[0010] Beneficial effect: The power-assisting device for land-laying of power cables of the present invention is improved on the basis of the existing power-assisting vehicle for cable laying. The support frame serves as the supporting structure of the entire device, including a cross bar extending front and rear and a front column and a rear column fixedly connected to the front and rear ends of the cross bar. The front wheels are rotatably assembled on the front columns, and the rear wheels are rotatably assembled on the rear columns. The support frame is a simple frame structure with a simple overall structure. The space around the cross bars, front columns and rear columns that constitute the support frame is completely empty. When walking on the ground, the cross bars, front columns and rear columns are not easy to interfere with obstacles, so that the overall passability of the support frame is better. The support frame does not have high requirements on ground conditions and can be applied to most land conditions, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of a power assist device for laying power cables on land according to the present invention; Figure 2 It is a schematic diagram of the use state of the auxiliary device for laying power cables on land of the present invention; In the figure: 1. support frame; 101. cross bar; 102. front column; 103. rear column; 104. connecting rod; 105. longitudinal rod; 2. fixing device; 3. front wheel; 4. rear wheel; 5. cable. DETAILED DESCRIPTION

[0012] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0013] The present invention provides an assisting device for laying a power cable on land, which is mainly used to solve the problem that the existing cable laying assisting vehicle can better protect the cable and achieve the purpose of labor saving when used for laying cable pipelines, but is easily interfered by obstacles and has poor passability when used for laying cables on land.

[0014] The scheme principle of the power cable land laying assisting device of the present invention is: the support frame serves as the supporting structure of the entire device, and the structure of the support frame is simplified so that the support frame includes a cross bar extending front and rear and a front column and a rear column fixedly connected to the front and rear ends of the cross bar, the front wheel is rotatably assembled on the front column, and the rear wheel is rotatably assembled on the rear column. The support frame is a simple frame structure, and the space around the cross bar, the front column and the rear column that constitute the support frame is completely vacant. When walking on the ground, the cross bar, the front column and the rear column are not easy to interfere with obstacles, thereby making the overall passability of the support frame better.

[0015] Embodiments of the power cable land laying assisting device of the present invention: like Figure 1 As shown, the power cable land laying assisting device comprises a support frame 1, on which a fixing device 2 for holding the cable is provided, and a front wheel 3 and a rear wheel 4 are also installed on the support frame 1, wherein the front wheel 3 is a universal wheel, and the rear wheel 4 is provided with two sets of fixed wheels. The support frame 1 comprises a cross bar 101 extending forward and backward, and a front column 102 and a rear column 103 fixedly connected to the front and rear ends of the cross bar 101, the front wheel 3 is rotatably mounted on the front column 102, and the rear wheel 4 is rotatably mounted on the rear column 103. The front column 102 is a U-shaped column with an opening facing downward, and the front wheel 3 is rotatably mounted on the open end of the U-shaped column, and a part of the wheel section of the front wheel 3 extends into the U-shaped space of the U-shaped column so that the two parallel sides of the U-shaped column form a stop limit for the front wheel 3 from the left and right sides. The two parallel sides of the U-shaped column form a stop limit for the front wheels from the left and right sides, which can improve the stability of the front wheels, thereby improving the overall stability of the power-assisting device, so that the power-assisting device has better stability when following the cable, and is less likely to roll over. The rear column 103 includes a longitudinal rod 105 extending up and down and a connecting rod 104 extending left and right fixedly connected to the bottom of the longitudinal rod 105, and the two groups of rear wheels 4 are rotatably assembled at both ends of the connecting rod 104. The rear column has a simple structure and is not easy to interfere with surrounding obstacles. It is also convenient to assemble the two groups of rear wheels on the rear column.

[0016] The support frame 1 of the power cable land laying assisting device of the present invention is a simple frame structure with a simple overall structure and convenient processing. The structure is simplified while meeting the support requirements, thereby reducing the production cost. The space around the crossbar 101, the front column 102, and the rear column 103 constituting the support frame 1 is completely vacant. When the assisting device moves on the ground, the crossbar 101, the front column 102, and the rear column 103 are not easy to interfere with obstacles, thereby making the overall passability of the support frame better. The support frame does not have high requirements on the ground conditions and can be applied to most land conditions, thereby improving the construction efficiency.

[0017] Of course, the support frame is not limited to the above structure. For example, in another embodiment, the front column of the support frame is a "I"-shaped column extending up and down, and the front wheels are directly rotatably mounted on the "I"-shaped column. For another example, in another embodiment, the rear column of the support frame is a U-shaped column with an opening facing downward, and the two groups of rear wheels are respectively rotatably mounted on the lower ends of the two parallel sides of the U-shaped column. There are many deformation structures of the support frame, which are not listed here.

[0018] In a preferred embodiment, the fixing device is provided with two groups, such as Figure 1 As shown in , two groups of fixing devices 2 are arranged at intervals in the front-to-back direction, wherein the front group of fixing devices 2 is located directly above the front column 102, and the rear group of fixing devices 2 is located directly above the rear column 103. This arrangement is conducive to making the weight of the cable more evenly distributed on the power-assisting device, the cable gravity borne by the front group of fixing devices 2 is mainly transferred to the front column 102, and the cable gravity borne by the rear group of fixing devices 2 is mainly transferred to the rear column 103, so that the front column 102 and the rear column 103 evenly bear the cable gravity, providing more stable support for the cable. Moreover, the cable weight borne by the front group of fixing devices 2 is mainly transmitted to the front column 102, and the front wheel 3 is rotatably mounted on the front column 102. The cable weight borne by the rear group of fixing devices 2 is mainly transmitted to the rear column 103, and the rear wheel 4 is rotatably mounted on the rear column 103. In this way, the friction between the front and rear wheels and the ground is relatively large, making the grip between the front and rear wheels and the ground more reliable, and the power-assisting device as a whole is less likely to roll over and has better stability. Of course, in other embodiments, the front group of fixing devices can also be located obliquely above the front column; the rear group of fixing devices can also be moved forward a distance so that it is located obliquely above the rear column. The specific position of the fixing device can have many variations, which are not listed here. In addition, the fixing device can also be provided with only one group, or the fixing device can also be provided with more than three groups, and the more than three groups of fixing devices are arranged at intervals in the front-to-back direction.

[0019] In this embodiment, the fixing device 2 is specifically a cable clamp. Figure 1As shown in , the cable clamp includes two halves of the clamp, one end of the two halves of the clamp is hingedly assembled together, and the other end is provided with a connecting ear, and the connecting ear is provided with a bolt through hole, and the other end of the two halves of the clamp is fixedly connected by a bolt assembly. One end of the two halves of the clamp is hingedly assembled together and can be opened and closed, so that the cable clamp can be clamped and fixed on the cable, which is more convenient to operate. Of course, in addition to the cable clamp, the fixing device can also adopt other structures. For example, the fixing device includes two clamps, one of which is fixedly connected to the support frame, and the other clamp is fixedly connected to the clamp by two sets of bolt assemblies, so that the cable is clamped between the two clamps, and the fixing device and the cable are fixed. The fixing device can also adopt a wire clamp, etc.

[0020] Taking into account the various land conditions that may be encountered when laying cables on land, such as urban land, rural land, mountainous land and other different land conditions, matching suitable wheels can further reduce the difficulty of construction and improve construction efficiency. Therefore, the front and rear wheels are set to be detachable and installed so that the front and rear wheels can be detachably installed on the support frame. Different wheels can be replaced according to the actual land conditions during application to adapt to different land conditions.

[0021] During cable laying, multiple assisting devices work together, such as Figure 2 As shown, a power-assisting device can be arranged at intervals along the extension direction of the cable 5, and each power-assisting device is fixed to the outside of the cable 5 by a cable clamp (the cable clamp is not locked in the figure). When the cable 5 is pulled by a traction mechanism or manpower, the front wheel 3 of each power-assisting device will automatically adjust and adapt to follow the traction direction of the cable 5, and the rear wheel 4 will follow the front wheel 3, so that the entire power-assisting device can follow the cable 5 to achieve the purpose of not damaging the cable. The front wheel 3 and two sets of rear wheels 4 of each power-assisting device are supported on the ground together, so that multiple points of support are formed between each power-assisting device and the ground, which can fully ensure the stability of each power-assisting device. When the cable is pulled, a large degree of freedom can be allowed without the situation that the cable is pulled over the power-assisting device. Even in an environment with poor ground conditions, the power-assisting device can still follow the cable relatively stably, thereby greatly reducing the difficulty of cable laying work and improving construction efficiency. The support frame of the power assist device is a simple frame structure with a simple overall structure. The space around the crossbar, front column and rear column that make up the support frame is completely empty, and it is not easy to interfere with obstacles, so that the overall passability of the support frame is better. The support frame does not have high requirements on ground conditions and can be applied to most land conditions, thereby improving construction efficiency.

[0022] The power cable land-laying assisting device of the present invention has a simple overall structure, is easy to carry, and has a low manufacturing cost, and can significantly improve the construction efficiency of the power cable land-laying.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A power assist device for laying power cables on land, comprising a support frame, a fixing device for fixing on the cable is provided on the support frame, and a front wheel and a rear wheel are also installed on the support frame, characterized in that: The support frame comprises a cross bar extending forward and backward and a front column and a rear column fixedly connected to the front and rear ends of the cross bar. The front wheel is rotatably mounted on the front column, and the rear wheel is rotatably mounted on the rear column.

2. The auxiliary device for laying power cables on land according to claim 1, characterized in that: The front pillar is a U-shaped pillar with an opening downward, and the front wheel is rotatably mounted on the open end of the U-shaped pillar. Part of the wheel section of the front wheel extends into the U-shaped space of the U-shaped pillar so that the two parallel sides of the U-shaped pillar form a stop limit for the front wheel from the left and right sides.

3. The auxiliary device for laying power cables on land according to claim 1, characterized in that: The rear upright column comprises a longitudinal rod extending up and down and a connecting rod extending left and right and fixedly connected to the bottom of the longitudinal rod. Two groups of rear wheels are provided, and the two groups of rear wheels are rotatably assembled on both ends of the connecting rod respectively.

4. The assisting device for laying power cables on land according to any one of claims 1 to 3, characterized in that: The fixing devices are provided with two groups, one group of the fixing devices is located just above the front pillars, and the other group of the fixing devices is located just above the rear pillars.

5. The assisting device for laying power cables on land according to any one of claims 1 to 3, characterized in that: The fixing device is a cable clamp.

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