Inhaul cable tightness adjuster

Abstract

The utility model provides an inhaul cable tightness adjuster which comprises a connector, a winding rotation stopping part for adjusting the tensioning degree of an inhaul cable is installed in the connector, the winding rotation stopping part comprises a rotating piece arranged in the connector, and a rotating shaft of the rotating piece extends out of the connector and is detachably connected with a rotating handle; the cable winding and rotation stopping part is arranged on the connector, a positioning hole for fixing the cable is formed in the rotating part, so that the cable can synchronously rotate along with the rotating part and surrounds the rotating part or is scattered on the rotating part, and the rotating part is fixed to the connector through bolts arranged on the two sides. The length of the inhaul cable can be adjusted, and the rotating mode is adopted for operation, so that labor is saved, and manual adjustment is facilitated; and secondly, the winding rotation stopping part locks and fixes the winding part in the connector through the arranged bolt, so that effective fixation of the winding rotation stopping part is guaranteed, and the bearing stress is decomposed to prolong the service life of the winding rotation stopping part.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a cable tension regulator. Background Art

[0002] Bridge cable tension regulator, commonly known as "cable force regulator" or "cable tension regulator", is a key device used in prestressed concrete bridges or cable-stayed bridges to adjust the tension of bridge cables. Its main function is to adjust and maintain the prestress of the cable within a reasonable range in real time during the construction and operation of the bridge according to factors such as design requirements, construction stage, and ambient temperature changes.

[0003] The working principle of this regulator is based on the principle of moment balance in physics. It changes the force acting on the cable through a mechanical device to achieve the purpose of adjusting the cable tension. In specific operations, the cable tension can be accurately adjusted based on the data fed back by the bridge monitoring system and combined with professional analysis to ensure the safety, stability and durability of the overall bridge structure.

[0004] For example, the cable length adjuster disclosed in the existing patent CN201183930Y has a specific solution that the cable length is adjusted through a sleeve with an internal thread and an adjusting bolt matched with the internal thread of the sleeve. The adjusting bolt can be one installed at one end of the sleeve, or two installed at both ends of the sleeve. By adjusting the matching pitch length between the sleeve and the adjusting bolt, the length of the cable connected to the adjusting bolt or sleeve can be controlled. The cable can be connected and fixed to the adjusting bolt or sleeve through a cable connector, and the other end of the sleeve is connected to the bridge body connection structure through the adjusting bolt.

[0005] The cable length can be adjusted to a maximum length of 30 cm, which effectively ensures the stability of the cable's tensile capacity. The cable length adjuster can be used for cable adjustment of various cable-stayed pedestrian bridges and medium and long span bridges. However, the above technical solution still has the following technical problems: the cable length adjustment method uses a threaded method, which causes greater wear on the thread and is difficult to be applied to large bridges. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide a cable tension adjuster.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable tension adjuster, comprising: a connecting head, in which a wire winding stopper for adjusting the tension of the cable is installed, and the wire winding stopper comprises: a rotating part arranged in the connecting head, and the rotating shaft of the rotating part extends to the outside of the connecting head and is detachably connected to a rotating handle; a positioning hole for fixing the cable is provided on the rotating part, so that the cable can rotate synchronously with the rotating part and wrap around the rotating part or spread out on the rotating part, and the rotating part is fixed to the connecting head by a provided bolt.

[0008] Furthermore, an adjustment sleeve is included. In order to increase the adjustment distance of the present application and pre-tighten the cable, a guide tube is installed on the inner thread of the adjustment sleeve, and a guide hole is opened on the guide tube for the cable to pass through; the side of the guide tube facing away from the adjustment sleeve is threadedly connected to the connecting head.

[0009] Furthermore, the adjustment sleeve includes: a tube portion, and a conical portion extending from the tube portion for tightening the cable, the conical portion being provided with a through hole connected to the tube portion; the tube portion being provided with an internal thread cooperating with the guide tube, and the guide tube being provided with an external thread cooperating with the tube portion for adjusting the matching distance between the guide tube and the adjustment sleeve.

[0010] As a preferred solution of the present application, in order to enable the guide tube to effectively receive or withdraw from the adjusting sleeve, a retaining ring is provided at one end of the guide tube close to the connecting head; the cross-sectional area of ​​the outer wall of the guide tube is ≤ the cross-sectional area of ​​the outer wall of the retaining ring, and the cross-sectional area of ​​the outer wall of the retaining ring is ≥ the cross-sectional area of ​​the inner wall of the connection between the winding stop portion and the retaining ring, so as to ensure that the retaining ring can always be located at the outer end of the adjusting sleeve.

[0011] As a preferred solution of the present application, an internal thread cooperating with the cable is provided in the guide hole, and the internal thread of the guide hole and the internal thread of the positioning hole are double-direction threads.

[0012] Furthermore, in order to effectively fix the cable and avoid wear caused by slippage, a groove for accommodating the cable is provided on the rotating member.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The winding anti-rotation part provided in the present application can reel in and release the cable by rotating to ensure that the length of the cable can be adjusted, and the rotation operation is more labor-saving and convenient for manual adjustment;

[0015] The winding stopper can be locked and fixed in the connecting head mainly by means of bolts provided thereon, so as to ensure effective fixation of the winding stopper and decompose the bearing force to increase the service life of the winding stopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a schematic diagram of the main structure of Example 1 of the utility model;

[0018] Figure 2 It is a schematic diagram of the main structure of the winding anti-rotation part in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the connection head and the bolt connection surface in the utility model;

[0020] Figure 4 This is a schematic diagram of the main structure of Example 2 of the present utility model;

[0021] Figure 5 It is a main structural schematic diagram of the retaining ring in the utility model.

[0022] In the figure: 1, connector; 2, winding stopper; 21, rotating member; 22, rotating handle; 211, positioning hole; 23, bolt; 24, groove; 3, guide tube; 31, guide hole; 32, retaining ring; 4, adjusting sleeve; 41, tube; 42, cone; 5, through hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] Embodiment 1:

[0025] like Figure 1 , 2 As shown, a cable tension adjuster comprises: a connecting head 1, in which a winding stopper 2 for adjusting the tension of the cable is installed, and the winding stopper 2 comprises: a rotating member 21 radially rotatably arranged in the connecting head 1, and the rotating shaft of the rotating member 21 extends to the outside of the connecting head 1 and is detachably connected to a rotating handle 22; a positioning hole 211 for fixing the cable is opened on the rotating member 21, so that the cable can rotate synchronously with the rotating member 21 and wrap around the rotating member 21 or spread along the rotating member 21, and the rotating member 21 is fixed to the connecting head 1 by bolts 23 arranged on both sides, and the setting direction of the bolts 23 is consistent with the setting direction of the rotating member 21.

[0026] In actual operation, the main installation method of the rotating part 21 in the present application is to be horizontally rotated and set on the connecting head 1. Specifically, rotating shafts are sleeved on both ends of the rotating shaft, and a hexagonal bolt 23 is sleeved on one end of the rotating shaft. The rotating handle 22 is a straight thread sleeve torque wrench. The hexagonal bolt 23 and the rotation are driven to rotate synchronously by rotating the rotating handle 22; both sides of the connecting head 1 are provided with bolt 23 fixing holes in a circular array with the rotating shaft as the center. When the rotating part 21 is rotated to a suitable position, the rotating part 21 can be fixed by the external bolt 23.

[0027] Embodiment 2:

[0028] like Figure 2-5 As shown, on the basis of the above technical solution, the present application also includes an adjusting sleeve 4. In order to increase the adjustment distance of the present application and pre-tighten the cable, a guide tube 3 is installed on the inner thread of the adjusting sleeve 4, and a guide hole 31 is opened on the guide tube 3 for the cable to pass through; the side of the guide tube 3 facing away from the adjusting sleeve 4 is threadedly connected to the connecting head 1.

[0029] The adjusting sleeve 4 comprises: a tube portion 41, and a conical portion 42 extending from the tube portion 41 for tightening the cable, the conical portion 42 being provided with a through hole 5 connected to the tube portion 41; the tube portion 41 being provided with an internal thread cooperating with the guide tube 3, and the guide tube 3 being provided with an external thread cooperating with the tube portion 41 for adjusting the matching distance between the guide tube 3 and the adjusting sleeve 4.

[0030] In order to enable the guide tube 3 to effectively receive or withdraw the adjusting sleeve 4 and the connecting head 1, the tube portion is provided on the guide tube 3; the cross-sectional area of ​​the outer wall of the guide tube 3 is ≤ the cross-sectional area of ​​the outer wall of the tube portion, and the cross-sectional area of ​​the outer wall of the tube portion is ≥ the cross-sectional area of ​​the inner wall of the connection between the winding stop portion 2 and the tube portion, so as to ensure that the position of the tube portion can always be located at the outer end of the adjusting sleeve 4.

[0031] The guide hole 31 is provided with an internal thread that cooperates with the cable. The internal thread of the guide hole 31 and the internal thread of the positioning hole 211 are double-direction threads. The internal thread and the external thread on the guide tube 3 are set to be double-direction, so that when the rotating guide tube 3 is separated from the adjustment sleeve 4 as a whole, the cable in the guide tube 3 moves toward the outside of the cone 42, that is, the guide tube 3 and the winding stop part 2 can adjust the length of the cable respectively, and this design can mainly fix the cable through the winding stop part 2 to reduce the traction force of the thread.

[0032] In order to effectively fix the cable and avoid wear caused by slippage, a groove 24 for accommodating the cable is provided on the rotating member 21.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cable tension adjuster, characterized in that: include: A connecting head (1), wherein a winding stopper (2) for adjusting the tension of a cable is installed in the connecting head (1), and the winding stopper (2) comprises: a rotating member (21) rotatably arranged in the connecting head (1), wherein the rotating shaft of the rotating member (21) extends outside the connecting head (1) and is detachably connected to a rotating handle (22); a positioning hole (211) for fixing the cable is provided on the rotating member (21), so that the cable can rotate synchronously with the rotating member (21), and the rotating member (21) is fixed to the connecting head (1) by a bolt (23).

2. A cable tension adjuster according to claim 1, characterized in that: It also includes an adjustment sleeve (4), the adjustment sleeve (4) having a guide tube (3) installed in an internal thread, and the guide tube (3) is provided with a guide hole (31) for the cable to pass through; the guide tube (3) is threadedly connected to the connector (1) on a side facing away from the adjustment sleeve (4).

3. A cable tension adjuster as claimed in claim 2, characterized in that: The adjustment sleeve (4) comprises: a tube portion (41) and a cone portion (42) extending from the tube portion (41); the cone portion (42) is provided with a through hole (5) communicating with the tube portion (41); and the tube portion (41) is provided with an internal thread cooperating with the guide tube (3).

4. A cable tension adjuster as claimed in claim 3, characterized in that: The guide tube (3) is provided with a retaining ring (32); the cross-sectional area of ​​the outer wall of the guide tube (3) is less than or equal to the cross-sectional area of ​​the outer wall of the retaining ring (32), and the cross-sectional area of ​​the outer wall of the retaining ring (32) is greater than or equal to the cross-sectional area of ​​the inner wall at the connection between the winding stopper (2) and the retaining ring (32).

5. A cable tension adjuster as claimed in claim 4, characterized in that: The guide hole (31) is provided with an internal thread that cooperates with the cable, and the internal thread of the guide hole (31) and the internal thread of the positioning hole (211) are double-direction threads.

6. A cable tension adjuster as claimed in claim 1, characterized in that: The rotating member (21) is provided with a groove (24) for accommodating a cable.

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