Portable cable laying device for engineering construction and method thereof

Abstract

The invention relates to the technical field of cable laying, in particular to a portable cable laying device for engineering construction, which comprises a connecting frame, a connecting plate I, a pulley, a rotating plate and the like, a plurality of handles are arranged on the connecting frame; the connecting frame is fixedly connected with a plurality of connecting plates I; a pulley is rotationally connected between the first connecting plates, the pulley is composed of a front wheel and a rear wheel, a cross-shaped protruding block is arranged on the face, opposite to the rear wheel, of the front wheel, and a cross-shaped groove is formed in the face, opposite to the front wheel, of the rear wheel; the first connecting plate on the rear side is composed of a first lower plate and a first upper plate, and the first lower plate is rotationally connected with a plurality of rotating plates. A rotating plate is manually rotated, so that the vertically upward rotating plate is rotated to a transverse state, then a worker drags the bottom of a front wheel with one hand, grasps an upper plate I with the other hand and pulls the upper plate I to the rear side, so that the front wheel is separated from a rear wheel, and the front wheel is inclined; the cable can slide to the ground along the inclined front wheels by pulling the connecting frame to move towards the front side.

Description

Technical Field

[0001] The present invention relates to the technical field of cable laying, and in particular to a portable cable laying device and method for engineering construction. Background Art

[0002] During the construction of existing projects, in order to ensure communication within the area, it is necessary to dig a trench at a specific location and lay the cable into the trench. When laying the cable, in order to avoid friction between the cable and the bottom of the trench, it is necessary to place a pulley in the trench and place the cable on the pulley for dragging. However, when the cable is laid, the pulley needs to be removed. However, since the cable presses on the pulley and the cable is heavy, it is not convenient to remove the pulley manually. Summary of the invention

[0003] In order to overcome the disadvantages that the cable presses the pulley and the cable is heavy, making it inconvenient to manually remove the pulley, the present invention provides a portable cable laying device and method for engineering construction.

[0004] The technical solution is: a portable cable laying device for engineering construction, including a connecting frame, a connecting plate and a pulley; a plurality of handles are provided on the connecting frame; a plurality of connecting plates are fixedly connected to the connecting frame; a pulley is rotatably connected between all the connecting plates, and the pulley is composed of a front wheel and a rear wheel, a cross protrusion is provided on the surface opposite to the front wheel and the rear wheel, a cross groove is provided on the surface opposite to the rear wheel and the front wheel, and the cross groove and the cross protrusion are interlocked with each other; it also includes a rotating plate and a stopper; the connecting plate on the rear side is composed of a lower plate and an upper plate, and the lower plate is rotatably connected to a plurality of rotating plates; a plurality of stoppers are fixedly connected to the lower plate, and all the stoppers are located between all the rotating plates.

[0005] As a preferred technical solution of the present invention, it also includes a friction layer; a plurality of friction layers for increasing the friction between the rotating plate and the upper plate are arranged on the upper plate.

[0006] As a preferred technical solution of the present invention, it also includes a cleaning component; the cleaning component includes a connecting plate 2, a connecting frame, a brush plate and a block 2; the connecting frame is connected to the cleaning component; a plurality of connecting plates 2 are rotatably connected to the right part of the connecting frame, and the connecting plate 2 located on the rear side is composed of a lower plate 2 and an upper plate 2, the lower plate 2 and the upper plate 2 are interlocked with each other, and the lower plate 2 is rotatably connected to two other rotating plates, and the lower plate 2 is fixedly connected to two other block 1s, and the upper plate 2 is provided with another friction layer; a connecting frame is rotatably connected between all the connecting plates 2, and a rotating shaft is fixedly connected to the middle of the connecting frame; a plurality of brush plates are rotatably connected to the rotating shaft in the middle of the connecting frame; a plurality of block 2s are fixedly connected to the bottom of the connecting frame, the bottom surface of each brush plate is in contact with the corresponding upper surface of the block 2, and the upper surface of each brush plate is provided with bristles.

[0007] As a preferred technical solution of the present invention, it also includes an inclined plate and a spring; a slide groove is opened on the inner side of the brush plate; a plurality of inclined plates are slidably connected in the slide groove on each brush plate, and bristles are arranged on the surface of each inclined plate; a spring is fixedly connected between two adjacent inclined plates.

[0008] As a preferred technical solution of the present invention, it also includes a rotating block and a fixed rod; a rotating block is rotatably connected to the front and rear sides of the connecting frame; each rotating block is slidably connected to a fixed rod, and each rotating block and the corresponding fixed rod are damping connections.

[0009] As a preferred technical solution of the present invention, the bottom of each fixing rod is configured in a conical shape.

[0010] As a preferred technical solution of the present invention, it also includes a fan-shaped plate, a rotating cap and a lever; a plurality of fan-shaped plates are rotatably connected to the bottom of the fixed rod; a rotating cap is rotatably connected to the top of each fixed rod through a thread; a lever is fixedly connected to the bottom of each rotating cap, and a plurality of support rods are arranged at the bottom of each lever.

[0011] As a preferred technical solution of the present invention, the interior of the fixing rod is hollow.

[0012] As a preferred technical solution of the present invention, a plurality of inclined surfaces are arranged on the inner bottom of each fixing rod.

[0013] A portable cable laying method for engineering construction includes the following steps: Step 1: placing a connecting frame, a connecting plate and a pulley in a dug trench, then placing the cable pull-out end on the pulley, and then pulling the cable to slide on the pulley until the cable length is consistent with the trench and stops; Step 2: manually rotating the rotating plate so that the vertically upward rotating plate is rotated to a horizontal state, and then the worker drags the bottom of the front wheel with one hand and grabs the upper plate with the other hand, and pulls the upper plate to the rear side, so that the front wheel is separated from the rear wheel, and the front wheel is tilted, and only the connecting frame needs to be pulled Pulling it forward will make the cable slide along the inclined front wheel to the ground; Step three: When the cable slides on the pulley, the cable will come into contact with the bristles on the brush plate, so the fine sand adhering to the cable will be removed by the bristles on the brush plate; Step four: Manually rotate the fixing rod to change the fixing rod from a horizontal state to a vertical state, and then manually step on the rotating cap to insert the fixing rod into the fine sand layer, and fix the connecting frame in the fine sand layer through the fixing rod to avoid the problem of friction on the pulley when the cable slides on the pulley, causing the position of the connecting frame to shift.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention manually rotates the rotating plate to rotate the vertically upward rotating plate to a horizontal state, and then the worker drags the bottom of the front wheel with one hand, grabs the upper plate one with the other hand, and pulls the upper plate one to the rear side to separate the front wheel from the rear wheel and make the front wheel tilted, and pulls the connecting frame to the front side to make the cable slide along the tilted front wheel to the ground.

[0015] When the cable of the present invention slides on the pulley, the cable will contact the bristles on the brush plate. Therefore, the fine sand adhered to the cable will be removed by the bristles on the brush plate, thereby preventing the fine sand adhered to the cable from being carried onto the pulley. When the cable slides on the pulley, it will rub against the fine sand, causing damage to the cable surface, thereby affecting the service life of the cable.

[0016] The present invention manually rotates the fixing rod so that the fixing rod changes from a horizontal state to a vertical state, and then manually steps on the rotating cap to insert the fixing rod into the fine sand layer, and fixes the connecting frame in the fine sand layer through the fixing rod, so as to avoid the problem that when the cable slides on the pulley, friction will be generated on the pulley, resulting in the displacement of the connecting frame position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the first structure disclosed by the portable cable laying device for engineering construction of the present invention;

[0018] Figure 2 A second structural schematic diagram of the portable cable laying device for engineering construction disclosed by the present invention;

[0019] Figure 3 An exploded view of the connection plate, upper and lower plates, upper plate, and front and rear wheels on the pulley disclosed in the portable cable laying device for engineering construction of the present invention;

[0020] Figure 4 A schematic structural diagram of a second connecting plate, a connecting frame, a brush plate, a second stopper and an inclined plate disclosed in the portable cable laying device for engineering construction of the present invention;

[0021] Figure 5 An exploded view of the connection frame, brush plate and stopper 2 disclosed in the portable cable laying device for engineering construction of the present invention;

[0022] Figure 6 A schematic diagram of the structure of the inclined plate and the spring disclosed in the portable cable laying device for engineering construction of the present invention;

[0023] Figure 7 A schematic diagram of the structure of the rotating block, the fixing rod, the fan-shaped plate and the rotating cap disclosed in the portable cable laying device for engineering construction of the present invention;

[0024] Figure 8The present invention is a schematic structural diagram of a lever disclosed in a portable cable laying device for engineering construction.

[0025] Markings in the figure are: 1-connecting frame, 2-connecting plate 1, 3-pulley, 4-rotating plate, 5-block 1, 6-friction layer, 7-connecting plate 2, 8-connecting frame, 9-brush plate, 10-block 2, 11-inclined plate, 12-spring, 13-rotating block, 14-fixing rod, 15-fan-shaped plate, 16-rotating cap, 17-shift lever, 1001-handle, 2001-lower plate 1, 2002-upper plate 1, 3001-front wheel, 3002-rear wheel, 7001-lower plate 2, 7002-upper plate 2, 9001-slide, 1401-inclined surface, 1701-support rod. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0027] Example 1

[0028] A portable cable laying device for engineering construction, such as Figure 1-Figure 6 As shown, it includes a connecting frame 1, a connecting plate 2 and a pulley 3; the connecting frame 1 is provided with two handles 1001; the connecting frame 1 is fixedly connected to two connecting plates 2 distributed front and back; all the connecting plates 2 are connected to a pulley 3 for common rotation, and the pulley 3 is composed of a front wheel 3001 and a rear wheel 3002, and a cross protrusion is provided on the surface opposite to the front wheel 3001 and the rear wheel 3002, and a cross groove is provided on the surface opposite to the front wheel 3001, and the cross groove and the cross protrusion are interlocked;

[0029] It also includes a rotating plate 4 and a stopper 5; the rear connecting plate 2 is composed of a lower plate 2001 and an upper plate 2002, the lower plate 2001 is rotatably connected to two rotating plates 4; two stoppers 5 are fixedly connected to the lower plate 2001, and all the stoppers 5 are located between all the rotating plates 4.

[0030] It also includes a friction layer 6; a plurality of friction layers 6 are arranged on the upper plate 2002, and the friction layer 6 increases the friction between the rotating plate 4 and the upper plate 2002 to prevent the pulley 3 from falling off due to vibration during use, which causes the rotating plate 4 to rotate downward.

[0031] It also includes a cleaning component; the cleaning component includes a connecting plate 2 7, a connecting frame 8, a brush plate 9 and a stopper 2 10; the connecting frame 1 is connected to the cleaning component; the right part of the connecting frame 1 is rotatably connected to two connecting plates 2 7 distributed front and back, and the connecting plate 2 7 located on the rear side is composed of a lower plate 2 7001 and an upper plate 2 7002, the lower plate 2 7001 and the upper plate 2 7002 are interlocked with each other, and the lower plate 2 7001 is rotatably connected to another two rotating plates 4, and the lower plate 2 7001 is fixed It is connected to two other stoppers 5, and the upper plate 2 7002 is provided with another friction layer 6; a connecting frame 8 is rotatably connected between all the connecting plates 2 7, and a rotating shaft is fixedly connected in the middle of the connecting frame 8; two brush plates 9 are rotatably connected on the rotating shaft in the middle of the connecting frame 8; two stoppers 2 10 are fixedly connected to the bottom of the connecting frame 8, and the bottom surface of each brush plate 9 is in contact with the upper surface of the corresponding stopper 2 10, and the upper surface of each brush plate 9 is provided with bristles, which prevent the brush plate 9 from rotating downward through the stopper 2 10.

[0032] It also includes an inclined plate 11 and a spring 12; a slide groove 9001 is opened on the inner side of the brush plate 9; a plurality of inclined plates 11 are slidably connected in the slide groove 9001 on each brush plate 9, and bristles are arranged on the surface of each inclined plate 11; a spring 12 is fixedly connected between two adjacent inclined plates 11.

[0033] Here is how the above example works:

[0034] When in use, first dig the trench. If the bottom of the trench is a soft soil layer, the cable can be laid directly. If there are stones or hard debris at the bottom of the trench, a layer of 100mm thick fine sand or soft soil needs to be laid to prevent the cable from being damaged. Then the operator places the cable reel on the ground above the starting end of the trench, and then places a connecting frame 1, a connecting plate 2 and a pulley 3 at the bottom of the excavated trench. Then the cable is pulled out from the cable reel and placed on the pulley 3, and the pulled-out end of the cable is connected to the external pulling device, and the cable is pulled to the end of the trench by the external pulling device. At the same time, a connecting frame 1, a connecting plate 2 and a pulley 3 need to be placed every 2m for the cable to slide, and the speed shall not exceed 15m / min. When the cable is pulled out to the trench When the cable is lifted, the lifting end will bulge upward, so that the cables on both sides of the lifting end will move toward the lifting end, causing the cable to change from a straight state to a bent state. Finally, the cable needs to be straightened again, which greatly affects the work efficiency. Therefore, when the connecting frame 1, the connecting plate 2 and the pulley 3 need to be pulled away from the bottom of the cable, the rotating plate 4 is manually rotated to rotate the vertically upward rotating plate 4 to a horizontal state, such as Figure 2 The worker then holds the bottom of the front wheel 3001 with one hand and grabs the upper plate 2002 with the other hand, and pulls the upper plate 2002 to the rear side, so that the upper plate 2002 and the rear wheel 3002 move forward synchronously along the lower plate 2001, so that the front wheel 3001 is separated from the rear wheel 3002. Figure 3 As shown, the removed upper plate 2002 and rear wheel 3002 are then placed on the ground, and then the workers gradually lose the support force on the front wheel 3001, causing the front wheel 3001 and the connected connecting plate 2 to rotate downward, so that the rear end of the front wheel 3001 contacts the ground. At this time, the front wheel 3001 is tilted, and it is only necessary to pull the connecting frame 1 to move forward to make the cable slide along the tilted front wheel 3001 to the ground, so as to avoid the lifting end bulging upward when the cable is lifted, so that the cables on both sides of the lifting end will move toward the lifting end, causing the cable to change from its original straight state to a curved state, and finally the cable needs to be straightened again, which greatly affects the work efficiency.

[0035] Since a layer of fine sand is laid at the bottom of the trench, the cable is prevented from being damaged by friction with stones and hard debris. However, the cable will come into contact with the fine sand, causing the fine sand to adhere to the surface of the cable. When the cable moves, the fine sand will be driven onto the pulley 3. When the cable slides on the pulley 3, it will rub against the fine sand, causing damage to the cable surface, thereby affecting the service life of the cable. Therefore, when the cable slides on the pulley 3, the cable will come into contact with the bristles on the brush plate 9. Therefore, the fine sand adhered to the cable will be removed by the bristles on the brush plate 9, thereby avoiding the problem that the fine sand adhered to the cable is driven onto the pulley 3. When the cable slides on the pulley 3, it will rub against the fine sand, causing damage to the cable surface, thereby affecting the service life of the cable.

[0036] However, considering that after the bristles have cleared the fine sand, due to the dense bristles, fine sand will remain between the bristles, causing the fine sand on the bristles to still rub against the cable, therefore, the middle part of the brush plate 9 is hollowed out, and a number of inclined plates 11 and springs 12 are provided. When the bristles on the brush plate 9 and the inclined plates 11 clean the cable, the cleaned fine sand will fall to the ground through the gap between the two adjacent inclined plates 11, thereby reducing the problem of fine sand remaining on the bristles. At the same time, the cable continues to rub against the brush plate 9 and the inclined plates 11 when moving, causing the inclined plates 11 to shake back and forth under the pressure of the cable, causing the tightly fitted bristles to swing left and right, thereby causing the fine sand to fall from between the bristles and fall to the ground through the gap between the two adjacent inclined plates 11, further avoiding the problem of fine sand remaining between the bristles.

[0037] At the same time, due to the presence of the cleaning component, it will hinder the cable from being placed on the ground. When the rear wheel 3002 needs to be removed, first rotate the rotating plate 4 on the lower plate 7001 from a vertical state to a horizontal state, and then move the upper plate 7002 toward the rear along the lower plate 7001, so that the upper plate 7002 is separated from the connecting axis of the connecting frame 8, and then move the connecting frame 8 downward, so that the connecting plate 2 7 rotates around the connecting frame 1, thereby making the connecting frame 8 inclined, and then follow the above operation to remove the rear wheel 3002.

[0038] Example 2

[0039] On the basis of Example 1, Figure 1-Figure 2 and Figure 7-Figure 8 As shown, it also includes a rotating block 13 and a fixed rod 14; the front and rear sides of the connecting frame 1 are rotatably connected to a rotating block 13; each rotating block 13 is slidably connected to a fixed rod 14, and each rotating block 13 and the corresponding fixed rod 14 are damping connections.

[0040] The bottom of each fixing rod 14 is configured in a conical shape, so as to facilitate quick insertion into the fine sand layer and save time.

[0041] It also includes a fan-shaped plate 15, a rotating cap 16 and a lever 17; the bottom of the fixed rod 14 is rotatably connected to two fan-shaped plates 15; the top of each fixed rod 14 is rotatably connected to a rotating cap 16 through a thread; the bottom of each rotating cap 16 is fixedly connected to a lever 17, and the bottom of each lever 17 is provided with two support rods 1701.

[0042] The interior of the fixing rod 14 is hollow, so as to avoid the problem that when the fan-shaped plate 15 is unfolded, fine sand flows into the groove where the fan-shaped plate 15 is placed, causing the fan-shaped plate 15 to be unable to be reset and thus difficult to be pulled out.

[0043] Two inclined surfaces 1401 are provided at the inner bottom of each fixing rod 14 , and the fine sand and mud entering the inner bottom of the fixing rod 14 are discharged through the inclined surfaces 1401 to prevent the fine sand and mud from being stuck inside the fixing rod 14 and affecting the rotation of the sector plate 15 .

[0044] A portable cable laying method for engineering construction includes the following steps:

[0045] Step 1: Place the connecting frame 1, the connecting plate 2 and the pulley 3 in the excavated trench, then place the cable pull-out end on the pulley 3, and then pull the cable to slide on the pulley 3 until the cable length is consistent with the trench;

[0046] Step 2: Manually rotate the rotating plate 4 to rotate the vertically upward rotating plate 4 to a horizontal state, then the worker holds the bottom of the front wheel 3001 with one hand, grabs the upper plate 1 2002 with the other hand, and pulls the upper plate 1 2002 backward, so that the front wheel 3001 is separated from the rear wheel 3002, and the front wheel 3001 is tilted. The cable can slide along the tilted front wheel 3001 to the ground by simply pulling the connecting frame 1 forward;

[0047] Step 3: When the cable slides on the pulley 3, the cable will contact the bristles on the brush plate 9, so the fine sand adhering to the cable will be removed by the bristles on the brush plate 9;

[0048] Step 4: Manually rotate the fixing rod 14 so that the fixing rod 14 changes from a horizontal state to a vertical state, and then manually step on the rotating cap 16 to insert the fixing rod 14 into the fine sand layer. The connecting frame 1 is fixed in the fine sand layer through the fixing rod 14 to prevent the cable from sliding on the pulley 3 and generating friction on the pulley 3, which may cause the position of the connecting frame 1 to shift.

[0049] Here is how the above example works:

[0050] The fixing rod 14 is manually rotated to make the fixing rod 14 change from a horizontal state to a vertical state, and then the fixing rod 14 is inserted into the fine sand layer by stepping on the rotating cap 16 manually, and the connecting frame 1 is fixed in the fine sand layer by the fixing rod 14, so as to avoid the problem that the cable slides on the pulley 3 and generates friction on the pulley 3, which causes the position of the connecting frame 1 to shift, and at the same time, the bottom of the fixing rod 14 is set to a cone shape, so that the fixing rod 14 is easier to insert into the fine sand layer, but considering that there are hard impurities such as stones in some trenches, the fixing rod 14 cannot be inserted straight to the bottom, so the rotating block 13 is manually rotated to make the rotating block 13 drives the fixing rod 14 to rotate, so that the two fixing rods 14 symmetrical on the left and right are in an eight-shaped shape, so that the fixing rod 14 is obliquely inserted into the fine sand layer. Although the insertion depth is shallower than before, the fixing rod 14 in this state better restricts the tendency of the connecting frame 1 to move left and right. However, it is also considered that since the insertion depth is shallower than before, when the fixing rod 14 is only inserted into the fine sand layer, the fine sand layer is relatively loose and the fixing effect is poor. When encountering a corner, the pulley 3 is not only subjected to the friction of the cable, but also the squeezing force of the cable on the pulley 3, which makes the pulley 3 subjected to greater force, resulting in the risk of the connecting frame 1 still shifting. Therefore, after the fixing rod 14 is obliquely inserted into the fine sand layer, the rotating cap 16 on the top of the fixing rod 14 is manually rotated, so that the rotating cap 16 drives the lever 17 to rotate, so that the support rod 1701 on the lever 17 squeezes the fan-shaped plate 15, so that the fan-shaped plate 15 moves in the direction away from the center of the fixing rod 14, such as Figure 6 In the state shown, when the fan-shaped plate 15 is unfolded, the fan-shaped plate 15 blocks the fine sand, thereby enhancing the stability of the connecting frame 1 and avoiding the problem that the fixing rod 14 is only inserted into the fine sand layer and the fixing effect is poor due to the loose fine sand layer.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable cable laying device for engineering construction, comprising a connecting frame (1), a connecting plate (2) and a pulley (3); the connecting frame (1) is provided with a plurality of handles (1001); the connecting frame (1) is fixedly connected with a plurality of connecting plates (2); a pulley (3) is rotatably connected between all the connecting plates (2), the pulley (3) is composed of a front wheel (3001) and a rear wheel (3002), a cross protrusion is provided on the surface opposite to the front wheel (3001) and the rear wheel (3002), a cross groove is provided on the surface opposite to the front wheel (3001), and the cross groove and the cross protrusion are interlocked; characterized in that It also includes a rotating plate (4) and a stopper (5); the connecting plate (2) on the rear side is composed of a lower plate (2001) and an upper plate (2002), and the lower plate (2001) is rotatably connected to a plurality of rotating plates (4); a plurality of stoppers (5) are fixedly connected to the lower plate (2001), and all the stoppers (5) are located between all the rotating plates (4).

2. A portable cable laying device for engineering construction according to claim 1, characterized in that: It also includes a friction layer (6); a plurality of friction layers (6) are arranged on the upper plate (2002) for increasing the friction between the rotating plate (4) and the upper plate (2002).

3. A portable cable laying device for engineering construction according to claim 2, characterized in that: The cleaning device also includes a cleaning assembly; the cleaning assembly includes a second connecting plate (7), a connecting frame (8), a brush plate (9) and a second stopper (10); the connecting frame (1) is connected to the cleaning assembly; the right part of the connecting frame (1) is rotatably connected to a plurality of second connecting plates (7); the second connecting plate (7) located at the rear side is composed of a second lower plate (7001) and a second upper plate (7002); the second lower plate (7001) and the second upper plate (7002) are mutually embedded, and the second lower plate (7001) is rotatably connected to another two rotating plates (4); and the second lower plate (7001) is rotatably connected to the second upper plate (7002). 7001) are fixedly connected to two other stoppers (5), and the upper plate (7002) is provided with another friction layer (6); a connecting frame (8) is rotatably connected between all the connecting plates (7), and a rotating shaft is fixedly connected in the middle of the connecting frame (8); a plurality of brush plates (9) are rotatably connected to the rotating shaft in the middle of the connecting frame (8); a plurality of stoppers (10) are fixedly connected to the bottom of the connecting frame (8), the bottom surface of each brush plate (9) is in contact with the upper surface of the corresponding stopper (10), and the upper surface of each brush plate (9) is provided with bristles.

4. A portable cable laying device for engineering construction according to claim 3, characterized in that: It also includes an inclined plate (11) and a spring (12); a slide groove (9001) is provided on the inner side of the brush plate (9); a plurality of inclined plates (11) are slidably connected in the slide groove (9001) on each brush plate (9), and bristles are provided on the surface of each inclined plate (11); and a spring (12) is fixedly connected between two adjacent inclined plates (11).

5. A portable cable laying device for engineering construction according to claim 1, characterized in that: It also comprises a rotating block (13) and a fixed rod (14); the front side and the rear side of the connecting frame (1) are both rotatably connected to a rotating block (13); each rotating block (13) is slidably connected to a fixed rod (14), and each rotating block (13) and the corresponding fixed rod (14) are connected in a damping manner.

6. A portable cable laying device for engineering construction according to claim 5, characterized in that: The bottom of each fixing rod (14) is configured in a conical shape.

7. A portable cable laying device for engineering construction according to any one of claims 5-6, characterized in that: The invention also comprises a fan-shaped plate (15), a rotating cap (16) and a lever (17); the bottom of the fixed rod (14) is rotatably connected to a plurality of fan-shaped plates (15); the top of each fixed rod (14) is rotatably connected to a rotating cap (16) through a thread; the bottom of each rotating cap (16) is fixedly connected to a lever (17), and the bottom of each lever (17) is provided with a plurality of supporting rods (1701).

8. A portable cable laying device for engineering construction according to claim 7, characterized in that: The interior of the fixing rod (14) is hollow.

9. A portable cable laying device for engineering construction according to claim 8, characterized in that: A plurality of inclined surfaces (1401) are provided at the inner bottom of each fixing rod (14).

10. A portable cable laying method for engineering construction, applicable to a portable cable laying device for engineering construction as claimed in claim 9, characterized in that: The following steps are included: Step 1: Place the connecting frame (1), the connecting plate 1 (2) and the pulley (3) in the excavated trench, then place the cable lead-out end on the pulley (3), and then pull the cable to slide on the pulley (3) until the cable length is consistent with the trench and stops; Step 2: manually rotate the rotating plate (4) to rotate the rotating plate (4) facing upward vertically to a horizontal position, then the worker holds the bottom of the front wheel (3001) with one hand and grabs the upper plate (2002) with the other hand, and pulls the upper plate (2002) backward, so that the front wheel (3001) is separated from the rear wheel (3002), and the front wheel (3001) is tilted. The cable can slide along the tilted front wheel (3001) to the ground by simply pulling the connecting frame (1) toward the front side; Step 3: When the cable slides on the pulley (3), the cable will come into contact with the bristles on the brush plate (9), so that the fine sand adhering to the cable will be removed by the bristles on the brush plate (9); Step 4: Manually rotate the fixing rod (14) so ​​that the fixing rod (14) changes from a horizontal state to a vertical state, and then manually step on the rotating cap (16) to insert the fixing rod (14) into the fine sand layer, and fix the connecting frame (1) in the fine sand layer through the fixing rod (14) to avoid the problem that when the cable slides on the pulley (3), friction will be generated on the pulley (3), causing the position of the connecting frame (1) to be offset.

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