Cable unfolding trolley for prestressed cable

Abstract

The utility model discloses a cable unfolding trolley for a pre-stressed cable, belongs to the technical field of pre-stressed cables, and solves the problem that in the prior art, a PE sleeve protective layer is damaged due to the fact that a cable body is mopped to the ground in the pre-stressed cable unfolding process. The cable spreading trolley comprises at least one cable spreading trolley body, and every two adjacent cable spreading trolley bodies are fixed through a connecting chain. A U-shaped seat is arranged on each cable unfolding vehicle body, a bearing wheel is arranged at the bottom of each U-shaped seat, and a lock catch is arranged at an opening in the top of each U-shaped seat. According to the utility model, the prestressed cables are arranged on the plurality of cable unfolding vehicle bodies with the universal wheels in sections, so that the cables can be prevented from being mopped in the cable unfolding process, and a PE (Poly Ethylene) sleeve protective layer is prevented from being damaged. According to the cable unfolding vehicle body, torsion and jumping of the prestressed cable in the cable unfolding process are reduced through the lock catches and the bearing wheels, meanwhile, the smoothness of the prestressed cable in the cable unfolding process is guaranteed, potential safety hazards in the cable unfolding process are reduced, operators are protected, and meanwhile the cable unfolding effect and the construction quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of prestressed cable, specifically relates to a cable unwinding trolley for prestressed cable. BACKGROUND

[0002] The prestressed cable is usually made of high-strength steel strand, reinforcing steel bar or other high-strength material, is tensioned by tensioning equipment during installation, and is then fixed at both ends of the structure to provide an initial stress state for the structure.

[0003] When the prestressed cable is packed into a roll for transportation, the finished prestressed cable is wrapped with a PE sleeve, and the cable body will generate certain internal stress due to compression during winding. Before actual construction, the prestressed cable needs to be unwound to release the internal stress and ensure correct installation and operation according to the design requirements.

[0004] The prior art usually unwinds and pulls the cable by a cable unwinding disc and a rotating wheel with a base. During the cable unwinding process, the cable body in the middle section is still dragged on the ground, which seriously damages the PE sleeve protective layer. Meanwhile, the cable body has poor fixing effect and cannot limit the displacement of the cable body during the cable unwinding process. The cable unwinding process needs to be adjusted manually, which is relatively complicated. Moreover, the cable unwinding process is a stress releasing process, and the displacement of the cable body is not limited during the cable unwinding process, which has great safety hazards and easily harms the operator. UTILITY MODEL CONTENT

[0005] In view of the above problems in the prior art, the utility model provides a cable unwinding trolley for prestressed cable, which solves the problem that the PE sleeve protective layer is damaged due to the cable body being dragged on the ground during the unwinding of the prestressed cable.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a cable unwinding trolley for prestressed cable, which comprises at least one cable unwinding trolley body provided with universal wheels around the bottom, and adjacent two cable unwinding trolley bodies are fixed through connecting chains. Each cable unwinding trolley body is provided with a U-shaped seat for the prestressed cable to pass through. The bottom of the U-shaped seat is rotatably provided with a bearing wheel for supporting the prestressed cable. The top opening of the U-shaped seat is provided with a lock catch for limiting the prestressed cable.

[0008] In the scheme, the prestressed cable is segmented and arranged on the multiple cable unwinding trolley bodies, which can prevent the cable body from being dragged on the ground during the cable unwinding process, avoid the damage of the PE sleeve protective layer, and improve the cable unwinding effect. The prestressed cable is limited in the U-shaped seat by the lock catch, which reduces the twisting and jumping of the prestressed cable during the cable unwinding process. Meanwhile, the bearing wheel of the U-shaped seat ensures the smoothness of the prestressed cable during the cable unwinding process, which is more convenient for releasing the stress in the prestressed cable.

[0009] Further, the two sides of each cable stretching trolley body are provided with a connecting ring detachably connected with the connecting chain. The connecting ring is provided in a structure facilitating quick connection and separation between the cable stretching trolley bodies, and is convenient for being applied to the cable stretching demand of prestressed cables with different lengths and gravity.

[0010] Further, the two ends of each connecting chain are provided with a spring buckle. The spring buckle is designed to make the connecting chain easier to operate, reduce the time required for connecting or disconnecting the chain, and further improve the work efficiency.

[0011] Further, the middle part of the bearing wheel is in a cylindrical structure, the two ends of the bearing wheel are in a circular table structure, and the small-diameter ends of the two circular table structures are arranged close to the two ends of the cylindrical structure. In this way, the shape of the bearing wheel is set to facilitate ensuring that the prestressed cable is always located in the middle part of the bearing wheel.

[0012] Further, the diameter of the cylindrical structure of each bearing wheel is equal to the diameter of the small-diameter end of the circular table structure, and the diameter of the large-diameter end of the circular table structure is 1.5-2 times the diameter of the cylindrical structure.

[0013] Further, the outer ring surface of each bearing wheel is an arc surface concave inward. The arc surface is set to be more in line with the circular cross section of the prestressed cable, improve the stability of the support, and also help guide the prestressed cable to move along the correct path.

[0014] Further, the lock catch is in an arch structure, one end of the lock catch is hingedly arranged on one side of the U-shaped seat, and the other end of the lock catch is clamped on the other side of the U-shaped seat. The lock catch is arranged to prevent the prestressed cable from accidentally sliding out during the cable stretching process, and to enhance the safety.

[0015] Further, the universal wheel of each cable stretching trolley body is provided with a lock. The lock is convenient for fixing the universal wheel.

[0016] Further, the wheel body of the bearing wheel is made of resin. The resin material has high hardness, smooth surface and certain shock absorption performance, and to some extent, increases the protection of the prestressed cable.

[0017] The utility model discloses a kind of cable stretching trolleys for prestressed cable, and its beneficial effects are as follows:

[0018] The utility model discloses a kind of cable stretching trolleys for prestressed cable, and its beneficial effects are as follows: BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1A structural schematic view of a cable unwinding trolley for prestressed cable;

[0020] Figure 2 A connecting schematic view of two cable unwinding trolley bodies;

[0021] Wherein: 1, a cable unwinding trolley body; 11, a universal wheel; 2, a U-shaped seat; 3, a bearing wheel; 4, a lock buckle; 5, a connecting ring; 6, a connecting chain. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application are described below to facilitate the understanding of the present application for those skilled in the art, but it should be clear that the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, these changes are obvious, and all the utility model creations utilizing the concept of the present application are within the scope of protection.

[0023] The present embodiment provides a cable unwinding trolley for prestressed cable, which is used to solve the problem of damaging the PE sleeve protective layer due to the cable body dragging on the ground during the unwinding process of the prestressed cable.

[0024] REFERENCE Figure 1 A cable unwinding trolley for prestressed cable, at least comprising one cable unwinding trolley body 1.

[0025] Each cable unwinding trolley body 1 is provided with a universal wheel 11 with a locking device around the bottom. By segmenting the prestressed cable on multiple cable unwinding trolley bodies 1 with universal wheels 11, it can prevent the cable from dragging on the ground during the unwinding process, avoid damaging the PE sleeve protective layer, and improve the unwinding effect.

[0026] Each cable unwinding trolley body 1 is provided with a U-shaped seat 2 for the prestressed cable to pass through, and the bottom of the U-shaped seat 2 is rotatably provided with a bearing wheel 3 for supporting the prestressed cable. The top opening of the U-shaped seat 2 is provided with a lock buckle 4 for limiting the prestressed cable. The lock buckle 4 is an arched structure, one end of the lock buckle 4 is hingedly arranged on one side of the U-shaped seat 2, and the other end of the lock buckle 4 is clamped on the other side of the U-shaped seat 2. The setting of the lock buckle 4 prevents the prestressed cable from accidentally slipping out during the unwinding process, enhancing the safety.

[0027] The prestressed cable is limited in the U-shaped seat 2 by the lock buckle 4, reducing the twisting and jumping of the prestressed cable during the unwinding process, and at the same time, the bearing wheel 3 of the U-shaped seat 2 ensures the smoothness of the prestressed cable during the unwinding process, making it more convenient to release the stress in the prestressed cable.

[0028] REFERENCE Figure 2The two adjacent cable spreading vehicle bodies 1 are fixed through the connecting chains 6. Specifically, in order to facilitate the quick connection and separation between the cable spreading vehicle bodies 1, and to facilitate the application to the cable spreading requirements of prestressed cables with different lengths and weights, a connecting ring 5 detachably connected with the connecting chain 6 is arranged on each side of each cable spreading vehicle body 1, and a spring buckle is arranged on each end of each connecting chain 6. The design of the spring buckle makes the connecting chain 6 easier to operate, reduces the time required for connecting or disconnecting the chain, and further improves the work efficiency.

[0029] As a specific structure of the bearing wheel 3, the middle part of the bearing wheel 3 is a cylindrical structure, and the two ends of the bearing wheel 3 are circular cone structures. The small-diameter ends of the two circular cone structures are arranged close to the two ends of the cylindrical structure, and the diameter of the cylindrical structure of each bearing wheel 3 is equal to the diameter of the small-diameter end of the circular cone structure. The diameter of the large-diameter end of the circular cone structure is 1.5-2 times the diameter of the cylindrical structure, and the outer ring surface of the two circular cone structures of each bearing wheel 3 is an inwardly recessed arc surface. The arrangement of the arc surface facilitates better adhesion to the circular cross section of the prestressed cable, improves the stability of the support, and also helps to guide the prestressed cable to move along the correct path.

[0030] In the embodiment, the wheel body of the bearing wheel 3 is made of resin. The resin material has high hardness, smooth surface, and certain shock absorption performance, which to some extent increases the protection of the prestressed cable.

[0031] In summary, the beneficial effects of the present scheme are:

[0032] The present scheme can prevent dragging on the ground during the cable spreading process by segmenting the prestressed cable on the plurality of cable spreading vehicle bodies 1 with universal wheels 11, and avoids the damage of the PE sleeve protective layer.

[0033] The cable spreading vehicle body 1 reduces the twisting and jumping of the prestressed cable during the cable spreading process while ensuring the smoothness of the prestressed cable during the cable spreading process, which not only reduces the safety hazards during the cable spreading process and protects the operators, but also improves the cable spreading effect and construction quality.

[0034] Although the specific embodiments of the utility model are described in detail in combination with the drawings, it should not be understood as limiting the protection scope of the patent. Various modifications and variations made by those skilled in the art within the scope described in the claims are still within the protection scope of the patent.

Claims

1. A strand deployment trolley for a pre-stressed cable, characterized in that, The cable spreading trolley (1) is provided with universal wheels (11) on the bottom, and two adjacent trolley bodies (1) are connected by a connecting chain (6); A U-shaped seat (2) is arranged on each trolley body (1) for the pre-stressed cable to pass through, the bottom of the U-shaped seat (2) is rotatably provided with a bearing wheel (3) for supporting the pre-stressed cable, and the top opening of the U-shaped seat (2) is provided with a lock buckle (4) for limiting the pre-stressed cable.

2. The de-spooling trolley for a pre-stressed cable according to claim 1, characterized in that, Two sides of each trolley body (1) are provided with a connecting ring (5) which is detachably connected with the connecting chain (6).

3. The de-spooling trolley for a pre-stressed cable according to claim 2, characterized in that, The ends of each connecting chain (6) are provided with spring buckles.

4. The strand deployment cart for a pre-stressed cable of claim 1, wherein, The middle part of the bearing wheel (3) is a cylindrical structure, the two ends of the bearing wheel (3) are circular truncated cone structures, and the small end of each circular truncated cone structure is arranged close to the two ends of the cylindrical structure.

5. The de-spooling trolley for a pre-stressed cable according to claim 4, characterized in that, The diameter of the cylindrical structure of each bearing wheel (3) is equal to the diameter of the small end of the circular truncated cone structure, and the diameter of the large end of the circular truncated cone structure is 1.5-2 times the diameter of the cylindrical structure.

6. The de-spooling trolley for a pre-stressed cable according to claim 4, characterized in that, The outer ring surface of each circular truncated cone structure of the bearing wheel (3) is an inwardly recessed arc surface.

7. The de-spooling trolley for a pre-stressed cable according to claim 4, characterized in that, The lock buckle (4) is an arcuate structure, one end of the lock buckle (4) is hingedly arranged on one side of the U-shaped seat (2), and the other end of the lock buckle (4) is clamped on the other side of the U-shaped seat (2).

8. The strand deployment cart for a pre-stressed cable of claim 1, wherein, The universal wheel (11) of each trolley body (1) is provided with a lock.

9. The strand deployment cart for a pre-stressed cable of claim 1, wherein, The wheel body of the bearing wheel (3) is made of resin.

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