Steel strand downward penetrating device

By designing a steel strand threading device, and utilizing the combination of a limiting sleeve and a spring, the problem of corrugated pipe damage and breakage during steel strand threading was solved, achieving stable threading and vibration reduction of the steel strand.

CN223838605UActive Publication Date: 2026-01-27CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY +1
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Patent Information

Application Number
CN202520379129.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-27
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

In the existing technology, during the installation of steel strands, the inaccurate tilt angle of the corrugated pipe during installation leads to increased conveying resistance, which can easily damage the corrugated pipe. Furthermore, forcibly inserting the steel strands may cause them to break.

Method used

A steel strand threading device was designed, including a bracket, a movable frame, a threading machine, and a shaking component. Through the cooperation of a limiting sleeve and a spring, the steel strand maintains an angle stability during shaking, preventing it from puncturing the corrugated pipe, and the spring also increases the shock absorption effect.

Benefits of technology

It effectively prevents the angle of the steel strand from changing during the installation process, avoids damage to the corrugated pipe and breakage of the steel strand, and improves the safety and reliability of the installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a steel strand downward penetrating device which comprises a support, a movable frame, a threading machine and a shaking assembly. The movable frame is slidably installed on the support in the height direction, the threading machine is slidably installed on the movable frame, the shaking assembly is fixedly installed on the movable frame, the movable frame is detachably installed at the end of a corrugated pipe, the shaking assembly comprises a limiting sleeve, the limiting sleeve is arranged in the movable frame, and the limiting sleeve is fixedly installed on the movable frame. The threading machine can be detachably installed on the limiting sleeve. According to the steel strand threading machine, when a steel strand shakes, the threading angle cannot be changed, the steel strand is prevented from penetrating through the corrugated pipe, meanwhile, shaking of the threading machine is kept, steel strand breakage caused by forced limiting of the steel strand can be prevented, a spring can be installed between the movable frame and the support, the damping effect is improved, and the service life of the steel strand threading machine is prolonged. And the limiting sleeve can move along with the threading machine when the threading machine shakes.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology; specifically, this utility model relates to a steel strand passing device. Background Technology

[0002] During the installation of steel strands, this device provides an auxiliary force for the lowering of the steel strands as they are released, making the installation of the steel strands easier.

[0003] In practice, the existing single-strand threading process suffers from several drawbacks. While the corrugated pipe is installed at a certain angle, the threading angle or position is not precise enough. As more strands are threaded through the pre-drilled holes, the threading angle and position significantly increase the resistance to the strands' movement. To force the last few strands through, the conveying force must be increased. This strong force causes the strands to drill obliquely through the corrugated pipe, resulting in the strands emerging from the middle and damaging the pipe. Utility Model Content

[0004] In view of this, the present invention provides a steel strand threading device, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0005] To achieve the aforementioned objectives, this utility model provides a steel strand threading device, comprising: a bracket, a movable frame, a threading machine, and a swaying component; the movable frame is slidably mounted on the bracket in the height direction, the threading machine is slidably mounted on the movable frame, the swaying component is fixedly mounted on the movable frame, the movable frame is detachably mounted on the end of a corrugated pipe, the swaying component includes a limiting sleeve disposed within the movable frame, and the threading machine is detachably mounted to the limiting sleeve.

[0006] In the steel strand threading device described above, optionally, a sliding sleeve is fixedly installed on the top end and one side of the limiting sleeve, the two sliding sleeves are staggered, and a moving rod is slidably installed inside the sliding sleeve, with both ends of the moving rod slidably installed inside the moving frame.

[0007] In the steel strand threading device described above, optionally, a plug is fixedly installed on one side of the threading machine near the movable frame, and the plug can be inserted into the cavity formed by the two sliding sleeves.

[0008] In the steel strand threading device described above, optionally, a connecting ring is fixedly installed on the side of the moving frame away from the threading machine, and stabilizing blocks are arranged in an array in the circumferential direction on the connecting ring. A sliding rod is fixedly installed on one end of the stabilizing block near the connecting ring, and the sliding rod is slidably installed on the connecting ring. A spring is fixedly installed on one end of the stabilizing block near the connecting ring, and the spring is fixedly installed on the connecting ring at one end of the stabilizing block. The spring is sleeved on the outside of the sliding rod.

[0009] In the steel strand passing device described above, optionally, sliding blocks are fixedly installed on the outer sides of both sides of the movable frame, and sliding grooves are opened inside both sides of the bracket, with the sliding blocks slidably installed in the sliding grooves.

[0010] In the steel strand threading device described above, optionally, a first limiting rod is slidably installed on the left side of the movable frame away from the connecting ring. The two ends of the first limiting rod are respectively fixedly installed on the inner walls of the upper and lower ends of the bracket. A first threaded rod is threadedly connected to the right side of the movable frame away from the connecting ring. The bottom end of the first threaded rod is rotatably installed on the inner wall of the bottom end of the bracket. A motor is fixedly installed on the top end of the first threaded rod. The motor is fixedly installed inside the bracket.

[0011] In the steel strand threading device described above, optionally, a groove is provided on the side of the movable frame away from the connecting ring, the threading machine is slidably installed in the groove, and a second limiting rod is slidably installed on both sides of the bottom end of the threading machine. The two ends of the two second limiting rods are respectively fixedly installed on the inner walls of the two sides of the groove. A second threaded rod is threadedly connected to the center of the bottom end of the threading machine. The two ends of the second threaded rod are respectively rotatably installed on the inner walls of the two sides of the groove, and a handle is fixedly installed on the end of the second threaded rod away from the connecting ring.

[0012] This utility model discloses a steel strand threading device, which employs a movable frame that can slide within a support. The movable frame is detachably installed on the outer wall of a corrugated pipe. The limiting sleeve can move with the shaking of the threading machine, ensuring that the threading angle of the steel strand does not change when the machine shakes, thus preventing the steel strand from breaking through the corrugated pipe. At the same time, it allows the threading machine to shake, preventing the steel strand from breaking due to forced limiting. Furthermore, a spring can be installed between the movable frame and the support to increase the shock absorption effect, allowing the limiting sleeve to move with the threading machine when it shakes. Attached Figure Description

[0013] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0014] Figure 1This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the movable frame of this utility model.

[0016] Figure 3 This is a structural schematic diagram of the movable frame of this utility model from another perspective.

[0017] Reference numerals: 1-Bracket; 1.1-Sliding groove; 2-Moving frame; 2.1-Connecting ring; 2.2-Stabilizing block; 2.3-Sliding rod; 2.4-Spring; 2.5-Sliding block; 2.6-First limiting rod; 2.7-First threaded rod; 2.8-Motor; 2.9-Groove; 2.91-Second limiting rod; 2.92-Second threaded rod; 2.93-Handle; 3-Threading machine; 3.1-Insertion rod; 4-Shaking assembly; 4.1-Limiting sleeve; 4.2-Sliding sleeve; 4.3-Moving rod. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figures 1 to 3 As shown, a typical embodiment of this utility model provides a steel strand threading device, including: a bracket 1, a movable frame 2, a threading machine 3, and a shaking component 4; the movable frame 2 is slidably mounted on the bracket 1 in the height direction, the threading machine 3 is slidably mounted on the movable frame 2, the shaking component 4 is fixedly mounted on the movable frame 2, the movable frame 2 is detachably mounted on the end of the corrugated pipe, and the shaking component 4 includes a limiting sleeve 4.1, which is disposed inside the movable frame 2, and the threading machine 3 can be detachably mounted with the limiting sleeve 4.1.

[0020] When in use, move the bracket 1 to the designated position, move the moving frame 2 to the appropriate position, install the moving frame 2 on the outer wall of the corrugated pipe, then pass the steel strand through the threading machine 3 and through the limiting sleeve 4.1, and then move the threading machine 3 so that the threading machine 3 and the limiting sleeve 4.1 are installed.

[0021] When the threading machine 3 is started, it will shake. The limiting sleeve 4.1 will move with the threading machine 3, so that the threading angle of the steel strand will not change when the steel strand shakes, thus preventing the steel strand from breaking through the corrugated pipe. At the same time, the shaking of the threading machine 3 is retained, which can prevent the steel strand from breaking due to being forcibly limited.

[0022] The top and one side of the limiting sleeve 4.1 are fixedly installed with sliding sleeves 4.2. The two sliding sleeves 4.2 are staggered. The sliding sleeves 4.2 are slidably installed inside the sliding sleeves 4.2. Both ends of the sliding sleeves 4.3 are slidably installed inside the moving frame 2.

[0023] When the limiting sleeve 4.1 moves, the sliding sleeve 4.2 slides on the moving rod 4.3, and the moving rod 4.3 moves inside the bracket 1, which can be used in different positions. At the same time, a spring can be installed between the moving frame and the bracket 1 to increase the shock absorption effect, so that the limiting sleeve 4.1 can move with the threading machine 3 when it shakes.

[0024] A insertion rod 3.1 is fixedly installed on one side of the threading machine 3 near the movable frame 2. The insertion rod 3.1 can be inserted into the cavity formed by the two sliding sleeves 4.2.

[0025] When the threading machine 3 moves, the insertion rod 3.1 can move with the threading machine 3, so that the insertion rod 3.1 drives the limit sleeve 4.1 to move, so that the threading angle will not change when the steel strand is swaying, thus preventing the steel strand from breaking through the corrugated pipe.

[0026] A connecting ring 2.1 is fixedly installed on the side of the movable frame 2 away from the threading machine 3. Stabilizing blocks 2.2 are arranged in an array in the circumferential direction on the connecting ring 2.1. A sliding rod 2.3 is fixedly installed on the end of the stabilizing block 2.2 near the connecting ring 2.1. The sliding rod 2.3 is slidably installed on the connecting ring 2.1. A spring 2.4 is fixedly installed on the end of the stabilizing block 2.2 near the connecting ring 2.1. The spring 2.4 is sleeved on the outside of the sliding rod 2.3.

[0027] When installing the movable frame 2, move the stabilizing block 2.2 toward the connecting ring 2.1, so that the spring 2.4 is compressed. After multiple stabilizing blocks 2.2 have moved, place the bellows in the middle of the connecting ring 2.1, release the stabilizing block 2.2, and the spring 2.4 will return to its original position, so that the stabilizing block 2.2 clamps the bellows, allowing the movable frame 2 to be positioned.

[0028] Sliding blocks 2.5 are fixedly installed on the outside of both sides of the movable frame 2, and sliding grooves 1.1 are opened inside both sides of the bracket 1, with the sliding blocks 2.5 slidably installed in the sliding grooves 1.1.

[0029] A first limiting rod 2.6 is slidably installed on the left side of the end of the movable frame 2 away from the connecting ring 2.1. The two ends of the first limiting rod 2.6 are respectively fixedly installed on the inner walls of the upper and lower ends of the bracket 1. A first threaded rod 2.7 is threadedly connected to the right side of the end of the movable frame 2 away from the connecting ring 2.1. The bottom end of the first threaded rod 2.7 is rotatably installed on the inner wall of the bottom end of the bracket 1. A motor 2.8 is fixedly installed on the top end of the first threaded rod 2.7. The motor 2.8 is fixedly installed inside the bracket 1.

[0030] The starting motor 2.8 drives the first threaded rod 2.7 to rotate, causing the moving frame 2 to slide on the first limit rod 2.6, and causing the sliding block 2.5 to slide in the sliding groove 1.1, which allows the moving frame 2 to change height.

[0031] The movable frame 2 has a groove 2.9 on the side away from the connecting ring 2.1. The threading machine 3 is slidably installed in the groove 2.9. The bottom end of the threading machine 3 is slidably installed on both sides of the groove 2.91. The two ends of the two second limit rods 2.91 are respectively fixedly installed on the inner walls of the two sides of the groove 2.9. The bottom end of the threading machine 3 is threadedly connected to a second threaded rod 2.92. The two ends of the second threaded rod 2.92 are respectively rotatably installed on the inner walls of the two sides of the groove 2.9. The end of the second threaded rod 2.92 away from the connecting ring 2.1 is fixedly installed with a handle 2.93.

[0032] Rotating handle 2.93 causes the second threaded rod 2.92 to rotate, causing the threading machine 3 to move on the second limit rod 2.91, so that the insertion rod 3.1 can connect with or separate from the limit sleeve 4.1. When separated, it can provide the space required for cutting the steel strand.

[0033] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A steel strand threading device, characterized in that, include: Support (1), movable frame (2), threading machine (3), and wobbling assembly (4); The movable frame (2) is slidably mounted on the bracket (1) in the height direction. The threading machine (3) is slidably mounted on the movable frame (2). The swaying component (4) is fixedly mounted on the movable frame (2). The movable frame (2) is detachably mounted on the end of the corrugated pipe. The swaying component (4) includes a limiting sleeve (4.1). The limiting sleeve (4.1) is disposed inside the movable frame (2). The threading machine (3) can be detachably mounted with the limiting sleeve (4.1).

2. The steel strand threading device as described in claim 1, characterized in that, The top and one side of the limiting sleeve (4.1) are fixedly installed with sliding sleeves (4.2), and the two sliding sleeves (4.2) are staggered. The sliding sleeves (4.2) are slidably installed with moving rods (4.3) inside, and both ends of the moving rods (4.3) are slidably installed inside the moving frame (2).

3. The steel strand threading device as described in claim 2, characterized in that, The threading machine (3) has a plug rod (3.1) fixedly installed on one side near the movable frame (2), and the plug rod (3.1) can be inserted into the cavity formed by the two sliding sleeves (4.2) interlacing.

4. The steel strand threading device as described in claim 1, characterized in that, A connecting ring (2.1) is fixedly installed on the side of the movable frame (2) away from the threading machine (3). The connecting ring (2.1) has stabilizing blocks (2.2) arranged in an array in the circumferential direction. A sliding rod (2.3) is fixedly installed on one end of the stabilizing block (2.2) near the connecting ring (2.1). The sliding rod (2.3) is slidably installed on the connecting ring (2.1). A spring (2.4) is fixedly installed on one end of the stabilizing block (2.2) near the connecting ring (2.1). The spring (2.4) is fixedly installed on the connecting ring (2.1) at one end of the stabilizing block (2.2). The spring (2.4) is sleeved on the outside of the sliding rod (2.3).

5. A steel strand threading device as described in claim 1, characterized in that, Sliding blocks (2.5) are fixedly installed on the outside of both sides of the movable frame (2), and sliding grooves (1.1) are opened inside both sides of the bracket (1). The sliding blocks (2.5) are slidably installed in the sliding grooves (1.1).

6. A steel strand threading device as described in claim 5, characterized in that, A first limiting rod (2.6) is slidably installed on the left side of the end of the movable frame (2) away from the connecting ring (2.1). The two ends of the first limiting rod (2.6) are respectively fixedly installed on the inner walls of the upper and lower ends of the bracket (1). A first threaded rod (2.7) is threadedly connected to the right side of the end of the movable frame (2) away from the connecting ring (2.1). The bottom end of the first threaded rod (2.7) is rotatably installed on the inner wall of the bottom end of the bracket (1). A motor (2.8) is fixedly installed on the top end of the first threaded rod (2.7). The motor (2.8) is fixedly installed inside the bracket (1).

7. A steel strand threading device as described in claim 1, characterized in that, The movable frame (2) has a groove (2.9) on the side away from the connecting ring (2.1). The threading machine (3) is slidably installed in the groove (2.9). The bottom end of the threading machine (3) is slidably installed on both sides of the bottom end of the threading machine (3). The two ends of the two second limit rods (2.91) are respectively fixedly installed on the inner walls of the two sides of the groove (2.9). The bottom end of the threading machine (3) is threadedly connected to a second threaded rod (2.92). The two ends of the second threaded rod (2.92) are respectively rotatably installed on the inner walls of the two sides of the groove (2.9). The end of the second threaded rod (2.92) away from the connecting ring (2.1) is fixedly installed with a handle (2.93).