Novel finished steel strand bundle core rod tractor

Abstract

The utility model provides a novel finished steel strand bundle core rod tractor which comprises a restraint ring, and steel strands are arranged on the periphery of the inner side of the restraint ring. A core rod is further arranged on the inner side of the restraint ring, and the core rod is located between the steel strands; a thread is turned on the outer wall of the core rod, the thread on the outer wall of the core rod is connected with a wire harness anti-falling assembly, and the wire harness anti-falling assembly is located on the side, away from the first circular-truncated-cone-shaped pressing block, of the restraint ring; one end of the wire harness anti-falling assembly is located between the steel strands, and the steel strands can be extruded through the wire harness anti-falling assembly. Through the arrangement of the rotating column, the hexagonal operating block, the second circular-truncated-cone-shaped pressing block and the threaded through hole, the effect of preventing the steel strand from being separated from the restraint ring is achieved, the problem that the construction progress of operators is affected can be effectively solved, and use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of traction devices, and particularly relates to a new finished steel strand bundle core rod traction device. Background Art

[0002] A finished steel strand bundle core rod traction device is a device that can traction a steel strand bundle, so as to facilitate the steel strand bundle to pass through various pipes. For example, a core rod traction device for a finished steel strand bundle with the publication number of CN103452323B, the core rod traction device includes: a finished steel strand bundle formed by straightening and braiding multiple single steel strands into a bundle, a restraint ring, and a core rod; one end of the core rod with a tapered head is inserted into the center inside one end of the finished steel strand, and the other end of the core rod protrudes outside one end of the finished steel strand bundle. There are still some problems in the actual use of this traction device. For example, during use, it is necessary to keep the core rod in a stressed state. If the external force on the core rod suddenly disappears, the steel strand may move relative to the restraint ring, which may cause the problem that the steel strand disengages from the restraint ring, and further may affect the construction progress of the operator, and it is inconvenient to use. Summary of the Utility Model

[0003] In order to solve the above existing technical problems, the utility model provides a new finished steel strand bundle core rod traction device, which can achieve the effect of preventing the steel strand from disengaging from the restraint ring, can effectively avoid the problem that the construction progress of the operator is affected, and is more convenient to use.

[0004] Its technical solution is as follows: a new finished steel strand bundle core rod traction device includes a restraint ring, and steel strands are respectively arranged at the four surrounding parts inside the restraint ring; a core rod is also arranged inside the restraint ring, and the core rod is located between the steel strands; one end of the core rod is fixedly connected with a traction ring, and the other end is fixedly connected with a first frustum-shaped pressing block, and the first frustum-shaped pressing block is also arranged between the steel strands. The steel strands can be extruded and fixed by the first frustum-shaped pressing block. It is characterized in that threads are machined on the outer wall of the core rod, and a wire harness anti-disengagement component is threadedly connected to the outer wall of the core rod, and the wire harness anti-disengagement component is located on the side of the restraint ring away from the first frustum-shaped pressing block; one end of the wire harness anti-disengagement component is located between the steel strands, and the steel strands can also be extruded by the wire harness anti-disengagement component.

[0005] Preferably, the wire harness anti-disengagement component includes a rotating column, one end of the outer wall of the rotating column is integrally connected with a hexagonal operation block; the other end of the outer wall of the rotating column is integrally connected with a second frustum-shaped pressing block; a threaded through hole is opened in the middle part inside the rotating column.

[0006] Compared with the prior art, the beneficial effect of the utility model is:

[0007] In the present utility model, the provision of the rotating column, hexagonal operation block, second frustum-shaped pressing block and threaded through-hole is conducive to achieving the effect of preventing the steel strand from disengaging from the restraint ring, effectively avoiding the problem of affecting the construction progress of the operator, and making the use more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural view of the present utility model.

[0009] Figure 2 is a partial sectional view schematic of the present utility model.

[0010] Figure 3 is a schematic structural view of the wire harness anti-disengagement assembly of the present utility model.

[0011] In the figure:

[0012] 1, restraint ring; 2, steel strand; 3, mandrel; 4, traction ring; 5, first frustum-shaped pressing block; 6, wire harness anti-disengagement assembly; 61, rotating column; 62, hexagonal operation block; 63, second frustum-shaped pressing block; 64, threaded through-hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following specifically describes the present utility model in conjunction with the drawings. As shown in the attached Figure 1 and the attached Figure 2 figures, a new type of finished steel strand bundle mandrel tractor includes a restraint ring 1. The inner circumferential parts of the restraint ring 1 are respectively provided with steel strands 2; a mandrel 3 is also provided inside the restraint ring 1, and the mandrel 3 is located between the steel strands 2; one end of the mandrel 3 is fixedly connected to a traction ring 4, and the other end is fixedly connected to a first frustum-shaped pressing block 5. Among them, the first frustum-shaped pressing block 5 is also arranged between the steel strands 2, and the steel strands 2 can be squeezed and fixed by the first frustum-shaped pressing block 5; threads are machined on the outer wall of the mandrel 3.

[0014] Among them, a new type of finished steel strand bundle mandrel tractor further includes a wire harness anti-disengagement assembly 6, and the wire harness anti-disengagement assembly 6 is threadedly connected to the outer wall of the mandrel 3; the wire harness anti-disengagement assembly 6 is located on the side of the restraint ring 1 away from the first frustum-shaped pressing block 5; one end of the wire harness anti-disengagement assembly 6 is located between the steel strands 2, and the steel strands 2 can also be squeezed by the wire harness anti-disengagement assembly 6, which is conducive to achieving the effect of preventing the steel strand from disengaging from the restraint ring, effectively avoiding the problem of affecting the construction progress of the operator, and making the use more convenient.

[0015] In this embodiment, as shown in the attached Figure 3 figure, the wire harness anti-disengagement assembly 6 includes a rotating column 61. One end of the outer wall of the rotating column 61 is integrally connected with a hexagonal operation block 62; the other end of the outer wall of the rotating column 61 is integrally connected with a second frustum-shaped pressing block 63; a threaded through-hole 64 is opened in the middle part of the interior of the rotating column 61.

[0016] In this embodiment, specifically, the rotating column 61 is threadedly connected to the outer wall of the mandrel 3 through a threaded through hole 64.

[0017] In this embodiment, specifically, the second frustum-shaped pressing block 63 is arranged toward the side close to the first frustum-shaped pressing block 5, and the second frustum-shaped pressing block 63 is located between the steel strands 2.

[0018] In this embodiment, specifically, the rotating column 61 is made of an alloy steel column with a circular longitudinal section.

[0019] In this embodiment, specifically, the first frustum-shaped pressing block 5 and the second frustum-shaped pressing block 63 are respectively made of frustum-shaped alloy steel blocks.

[0020] When using this tractor, first insert the mandrel 3 into the inner side of the restraint ring 1, and make the first frustum-shaped pressing block 5 away from the left side of the restraint ring 1. Then rotate the rotating column 61 to drive the second frustum-shaped pressing block 63 away from the right side of the restraint ring 1. Subsequently, the steel strands 2 can be sequentially passed through the restraint ring 1 so that the steel strands 2 surround the mandrel 3. Then pull the mandrel 3 through the traction ring 4 to drive the first frustum-shaped pressing block 5 to move toward the side close to the restraint ring 1 until the steel strands 2 are squeezed between the restraint ring 1 and the first frustum-shaped pressing block 5. Subsequently, rotate the rotating column 61 to drive the second frustum-shaped pressing block 63 to move toward the side close to the restraint ring 1 until the steel strands 2 are squeezed between the second frustum-shaped pressing block 63 and the restraint ring 1. When it is difficult to rotate the rotating column 61, the operator can rotate the hexagonal operation block 62 through an external wrench to drive the rotating column 61 to rotate, thus completing the installation of the steel strands 2; during the traction process, since the first frustum-shaped pressing block 5 and the second frustum-shaped pressing block 63 are respectively arranged on both sides of the restraint ring 1, the relative position between the squeezed steel strands 2 and the restraint ring 1 will be fixed. Therefore, during the traction process, even if the external force on the mandrel 3 is suddenly removed, there will be no relative movement between the restraint ring 1 and the steel strands 2, effectively avoiding the problem of the separation of the steel strands 2 from the restraint ring 1, achieving the effect of preventing the steel strands 2 from detaching from the restraint ring 1, and effectively avoiding the problem of affecting the construction progress of the operator, making it more convenient to use.

[0021] Using the technical solution of the present invention, or those skilled in the art inspired by the technical solution of the present invention to design a similar technical solution and achieving the above technical effects shall fall within the protection scope of the present invention.

Claims

1. A new type of finished steel strand bundle mandrel puller, characterized in that: The novel finished steel strand bundle mandrel traction device comprises a restraining ring (1), wherein steel strands (2) are respectively arranged at the four sides of the inner side of the restraining ring (1); a mandrel (3) is also arranged at the inner side of the restraining ring (1), and the mandrel (3) is located between the steel strands (2); one end of the mandrel (3) is fixedly connected to a traction ring (4), and the other end is fixedly connected to a first truncated cone-shaped pressing block (5), wherein the first truncated cone-shaped pressing block (5) is also arranged between the steel strands (2), and is fixedly connected to the traction ring (4) at one end of the mandrel (3). The cone-shaped pressing block (5) can squeeze and fix the steel strands (2), and is characterized in that a thread is machined on the outer wall of the core rod (3), and a wire harness anti-slip assembly (6) is threadedly connected to the outer wall of the core rod (3), wherein the wire harness anti-slip assembly (6) is located on the side of the restraining ring (1) away from the first cone-shaped pressing block (5); one end of the wire harness anti-slip assembly (6) is located between the steel strands (2), and the steel strands (2) can also be squeezed through the wire harness anti-slip assembly (6).

2. The novel finished steel strand bundle mandrel puller according to claim 1 is characterized in that: The wire harness anti-detachment assembly (6) comprises a rotating column (61), one end of the outer wall of the rotating column (61) is integrally connected with a hexagonal operating block (62); the other end of the outer wall of the rotating column (61) is integrally connected with a second truncated cone-shaped pressing block (63); and a threaded through hole (64) is provided in the middle portion of the interior of the rotating column (61).

3. The novel finished steel strand bundle mandrel puller as claimed in claim 2 is characterized in that: The rotating column (61) is threadedly connected to the outer wall of the core rod (3) through a threaded through hole (64).

4. The novel finished steel strand bundle mandrel puller as claimed in claim 3 is characterized in that: The second truncated cone-shaped pressing block (63) is arranged toward a side close to the first truncated cone-shaped pressing block (5), and the second truncated cone-shaped pressing block (63) is located between the steel strands (2).

5. The novel finished steel strand bundle mandrel puller as claimed in claim 4 is characterized in that: The rotating column (61) is an alloy steel column with a circular longitudinal section.

6. The novel finished steel strand bundle mandrel puller as claimed in claim 5, characterized in that: The first truncated cone-shaped pressing block (5) and the second truncated cone-shaped pressing block (63) are respectively made of truncated cone-shaped alloy steel blocks.

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