A cable pulling device for electrical utility installations

Abstract

The utility model relates to the field of electric power facilities discloses a kind of cable traction device of electric power facility installation, including box, the inside of the box is provided with four groups of first traction wheel, the both sides of the first traction wheel are rotatably installed with mounting block by shaft pin, the bottom of the mounting block and the bottom of box inner wall are fixedly installed, the inside of the box is provided with ten groups of second traction wheel, the left side and the right side of every two groups of second traction wheel are rotatably installed with connecting block by shaft pin.The utility model in the present application, when the interval between second traction wheel and first traction wheel needs to be adjusted, the connecting plate and screw rod can be rotated at this time, the connecting plate will be moved to the bottom by screw rod, the connecting plate moves to the bottom and drives connecting block and second traction wheel to move to the bottom, when the surface of second traction wheel and cable surface contact, different diameter cable can be adapted to be pulled at this time.

Description

Technical Field

[0001] This utility model relates to the field of power facilities, and in particular to a cable pulling device for the installation of power facilities. Background Technology

[0002] Power facilities refer to various equipment and systems used for the production, transmission, distribution and use of electrical energy. Cable lines consist of the cable body, cable joints, cable terminals, etc. Cables are usually buried underground or laid in cable trenches, tunnels and other places, and have the advantages of small footprint and high reliability.

[0003] Existing cable traction methods rely on friction clamping by tracks. However, the track spacing in common tracked traction systems is difficult to adjust, which can easily lead to either insufficient clamping force due to excessive spacing or damage to the cable sheath due to insufficient spacing. Furthermore, most existing cable traction systems can only pull single cables, resulting in a limited number of cables and thus affecting traction efficiency. Therefore, a cable traction device for power facility installation is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a cable traction device for power facility installation, which aims to improve the problems in the existing tracked traction technology where the track spacing is difficult to adjust, which can easily lead to insufficient clamping force due to excessive spacing or damage to the cable sheath due to insufficient spacing. Moreover, most existing cable production traction devices can only traction a single cable, resulting in a small number of cables being tractioned, thus affecting the cable traction efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cable pulling device for power facility installation includes a housing. The housing contains four sets of first traction wheels. Mounting blocks are rotatably mounted on both sides of each first traction wheel via pivot pins. The bottom of each mounting block is fixedly mounted to the bottom of the inner wall of the housing. The housing also contains ten sets of second traction wheels. Connecting blocks are rotatably mounted on the left and right sides of every two sets of second traction wheels via pivot pins. The housing contains an adjustment component for adjusting the distance between the second and first traction wheels, and an adaptation component for adapting to different cable diameters.

[0007] As a further description of the above technical solution:

[0008] The adjustment assembly includes a connecting plate and a connecting block, the connecting plate and the connecting block are fixedly installed, and a screw is rotatably installed on the top of the connecting plate. The top of the screw extends through to the top of the housing and is threadedly installed with the housing.

[0009] As a further description of the above technical solution:

[0010] A round block is fixedly installed on the top of the screw, and a handle is fixedly installed on the top of the round block;

[0011] As a further description of the above technical solution:

[0012] The adapter assembly includes five sets of rings. A round rod is fixedly installed at the bottom of each ring. The bottom of the round rod is fixedly installed at the bottom of the inner wall of the box. Each set of rings has five sets of rollers inside. A U-shaped sleeve is rotatably installed on the outer side of each roller via a pivot pin. A limit rod is fixedly installed on the side of the U-shaped sleeve away from the roller. The outer end of the limit rod passes through to the outer side of the ring and is slidably installed with the ring.

[0013] As a further description of the above technical solution:

[0014] A disc is fixedly installed on the outer end of the limiting rod, and a tension spring is sleeved on the surface of the limiting rod. The inner end of the tension spring is fixedly installed on the surface of the ring, and the outer end of the tension spring is fixedly installed on the inner side of the disc.

[0015] As a further description of the above technical solution:

[0016] Reinforcing rods are fixedly installed on both sides of the round rod, and the bottom of the reinforcing rods is fixedly installed on the bottom of the inner wall of the box.

[0017] As a further description of the above technical solution:

[0018] Limiting blocks are fixedly installed on both sides of the connecting plate, and limiting grooves are opened on both sides of the inner wall of the box. The limiting blocks and limiting grooves are slidably installed.

[0019] This utility model has the following beneficial effects:

[0020] In this invention, through the cooperation of the connecting plate and the screw, when it is necessary to adjust the distance between the second traction wheel and the first traction wheel, the screw can be rotated. The screw will drive the connecting plate to move to the bottom. The movement of the connecting plate to the bottom will drive the connecting block and the second traction wheel to move to the bottom. When the surface of the second traction wheel contacts the surface of the cable, it can be used to pull cables of different diameters.

[0021] In this invention, the cooperation of a ring, a rod, a roller, a U-shaped sleeve, and a limiting rod allows the cable to enter the ring. At this time, the cable will squeeze the roller, and the roller will move outward under the force. At this time, the roller will squeeze the U-shaped sleeve and the limiting rod. The roller can be used for different cable diameters. Attached Figure Description

[0022] Figure 1A three-dimensional schematic diagram of the box body is provided for this utility model;

[0023] Figure 2 This is a schematic diagram of the box structure proposed in this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0026] Legend:

[0027] 1. Housing; 2. First traction wheel; 3. Mounting block; 4. Second traction wheel; 5. Connecting block; 6. Adjustment assembly; 61. Connecting plate; 62. Screw; 63. Round block; 64. Handle; 7. Adaptor assembly; 71. Ring; 72. Round rod; 73. Roller; 74. U-shaped sleeve; 75. Limiting rod; 76. Disc; 77. Tension spring; 8. Reinforcing rod; 9. Limiting block; 10. Limiting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1-4 This utility model provides an embodiment of a cable pulling device for power facility installation, comprising a housing 1. The housing 1 contains four sets of first traction wheels 2. Mounting blocks 3 are rotatably mounted on both sides of each first traction wheel 2 via axle pins. The bottom of the mounting blocks 3 is fixedly mounted to the bottom of the inner wall of the housing 1. The housing 1 contains ten sets of second traction wheels 4. Connecting blocks 5 are rotatably mounted on the left and right sides of every two sets of second traction wheels 4 via axle pins. The housing 1 contains an adjustment component 6 for adjusting the distance between the second traction wheels 4 and the first traction wheels 2. The housing 1 also contains an adapter component 7 for adapting to the cable diameter. First, the cable to be pulled can be placed on the surface of the first traction wheel 2. Then, the second traction wheel 4 can be moved to the bottom using the adjustment component 6. When the bottom of the second traction wheel 4 contacts the surface of the cable, the adapter component 7 can limit the cable's movement to prevent it from swaying during pulling.

[0030] Reference Figure 1-4The adjusting assembly 6 includes a connecting plate 61, with a connecting block 5 fixedly installed. A screw 62 is rotatably mounted on the top of the connecting plate 61. The top of the screw 62 extends through to the top of the housing 1 and is threaded onto the housing 1. Through the cooperation of the connecting plate 61 and the screw 62, when it is necessary to adjust the distance between the second traction wheel 4 and the first traction wheel 2, the screw 62 can be rotated. The screw 62 will drive the connecting plate 61 to move to the bottom. The movement of the connecting plate 61 to the bottom will drive the connecting block 5 and the second traction wheel 4 to move to the bottom. When the surface of the second traction wheel 4 contacts the surface of the cable, it can accommodate cables of different diameters for traction. A circular block 63 is fixedly installed on the part, and a handle 64 is fixedly installed on the top of the circular block 63. Through the cooperation between the circular block 63 and the handle 64, the circular block 63 can be rotated when the handle 64 is rotated. The rotation of the circular block 63 drives the screw 62 to rotate, thereby increasing the contact area when rotating the screw 62 and improving the convenience of rotating the screw 62. Limiting blocks 9 are fixedly installed on both sides of the connecting plate 61, and limiting grooves 10 are opened on both sides of the inner wall of the housing 1. The limiting blocks 9 and the limiting grooves 10 are slidably installed. Through the cooperation between the limiting blocks 9 and the limiting grooves 10, the connecting plate 61 can be limited to prevent the connecting plate 61 from being unable to move linearly when moving.

[0031] Reference Figure 1-4 The adapter component 7 includes five sets of rings 71. A round rod 72 is fixedly installed at the bottom of each ring 71. The bottom of the round rod 72 is fixedly installed on the bottom of the inner wall of the housing 1. Each set of rings 71 has five sets of rollers 73 inside. A U-shaped sleeve 74 is rotatably installed on the outer side of each roller 73 via a pivot pin. A limit rod 75 is fixedly installed on the side of the U-shaped sleeve 74 away from the roller 73. The outer end of the limit rod 75 extends through to the outer side of the ring 71 and slides with the ring 71. Through the cooperation of the rings 71, round rods 72, rollers 73, U-shaped sleeves 74 and limit rods 75, when the cable enters the ring 71, the cable will squeeze the roller 73. The roller 73 will move outward under the force, and at this time the roller 73 will squeeze the U-shaped sleeve 74. With the limiting rod 75, the roller 73 can be used for different cable diameters. A disc 76 is fixedly installed on the outer end of the limiting rod 75. A tension spring 77 is sleeved on the surface of the limiting rod 75. The inner end of the tension spring 77 is fixedly installed on the surface of the ring 71, and the outer end of the tension spring 77 is fixedly installed on the inner side of the disc 76. Through the cooperation of the disc 76 and the tension spring 77, the ring 71 and the limiting rod 75 can always bear the tension of the tension spring 77, so that the roller 73 can limit cables of different diameters. Reinforcing rods 8 are fixedly installed on both sides of the round rod 72. The bottom of the reinforcing rod 8 is fixedly installed on the bottom of the inner wall of the housing 1. The reinforcement rod 8 can strengthen the strength of the round rod 72, thereby preventing the round rod 72 from breaking.

[0032] Working principle: First, the cable to be pulled can be placed on the surface of the first traction wheel 2. Then, the handle 64 can be rotated. The rotation of the handle 64 drives the circular block 63 to rotate, which in turn drives the screw 62 to rotate. The screw 62 will drive the connecting plate 61 to move to the bottom. The movement of the connecting plate 61 to the bottom will drive the connecting block 5 and the second traction wheel 4 to move to the bottom. When the surface of the second traction wheel 4 contacts the surface of the cable, it can be used to pull cables of different diameters. Then, the front end of the cable is passed through the ring 71. When the cable enters the ring 71, the roller 73 will be squeezed by the cable. The cable will squeeze the roller 73, and the roller 73 will move outward under the force. At this time, the roller 73 will squeeze the U-shaped sleeve 74 and the limiting rod 75. At this time, the disc 76 will be pulled by the tension spring 77, so that the roller 73 can be used to pull cables of different diameters.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable pulling device for power facility installation, comprising a housing (1), characterized in that: The box (1) is provided with four sets of first traction wheels (2). On both sides of the first traction wheels (2), mounting blocks (3) are rotatably installed via axle pins. The bottom of the mounting blocks (3) is fixedly installed on the bottom of the inner wall of the box (1). The box (1) is provided with ten sets of second traction wheels (4). On the left and right sides of every two sets of second traction wheels (4), connecting blocks (5) are rotatably installed via axle pins. The box (1) is provided with an adjustment component (6) for adjusting the distance between the second traction wheels (4) and the first traction wheels (2). The box (1) is provided with an adapter component (7) for adapting to the cable diameter.

2. The cable pulling device for power facility installation according to claim 1, characterized in that: The adjustment assembly (6) includes a connecting plate (61), which is fixedly installed with a connecting block (5). A screw (62) is rotatably installed on the top of the connecting plate (61), and the top of the screw (62) extends through to the top of the housing (1) and is threadedly installed with the housing (1).

3. A cable pulling device for power facility installation according to claim 2, characterized in that: A round block (63) is fixedly installed on the top of the screw (62), and a handle (64) is fixedly installed on the top of the round block (63).

4. A cable pulling device for power facility installation according to claim 1, characterized in that: The adapter component (7) includes five sets of rings (71). A round rod (72) is fixedly installed at the bottom of the ring (71). The bottom of the round rod (72) is fixedly installed at the bottom of the inner wall of the box (1). Each set of rings (71) is provided with five sets of rollers (73). A U-shaped sleeve (74) is rotatably installed on the outer side of each roller (73) through a shaft pin. A limit rod (75) is fixedly installed on the side of the U-shaped sleeve (74) away from the roller (73). The outer end of the limit rod (75) extends through to the outer side of the ring (71) and slides with the ring (71).

5. A cable pulling device for power facility installation according to claim 4, characterized in that: A disc (76) is fixedly installed on the outer end of the limiting rod (75), and a tension spring (77) is sleeved on the surface of the limiting rod (75). The inner end of the tension spring (77) is fixedly installed on the surface of the ring (71), and the outer end of the tension spring (77) is fixedly installed on the inner side of the disc (76).

6. A cable pulling device for power facility installation according to claim 4, characterized in that: Both sides of the round rod (72) are fixedly installed with reinforcing rods (8), and the bottom of the reinforcing rods (8) is fixedly installed on the bottom of the inner wall of the box (1).

7. A cable pulling device for power facility installation according to claim 2, characterized in that: Limiting blocks (9) are fixedly installed on both sides of the connecting plate (61), and limiting grooves (10) are opened on both sides of the inner wall of the box (1). The limiting blocks (9) and limiting grooves (10) are slidably installed.

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