Steel strand pulling device

Abstract

The utility model discloses a steel strand pulling device which comprises two clamping pieces which are oppositely arranged, each clamping piece is provided with a plurality of installation holes, each installation hole is used for containing a steel strand, the two clamping pieces are respectively connected with a locking piece, and the locking pieces are arranged on the two clamping pieces. The locking piece is located on the sides, away from each other, of the clamping pieces and used for being connected with a winch. Therefore, the steel strand pulling device is simple in structure and convenient to operate, multiple steel strands can be pulled at a time, pulling efficiency is improved, winding of the multiple steel strands can be avoided, the multiple steel strands can be tensioned at a time, tensioning quality and efficiency of the steel strands are improved, manpower construction cost can be reduced, and construction progress can be accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strand construction, in particular to a steel strand bundle threading device. Background Art

[0002] At present, most of the prestressed steel strands are threaded by a single strand machine or manually. The threading speed of a single strand machine and manual threading is slow, and the threading efficiency is low, which increases the construction time and cost. In addition, after threading multiple steel strands, they are easily entangled with each other, affecting the quality of prestressing. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the purpose of the utility model is to provide a steel strand bundle threading device, which can realize the bundle threading of multiple steel strands, improve the bundle threading speed of multiple steel strands, and avoid the entanglement of multiple steel strands.

[0004] According to the steel strand threading device of the embodiment of the utility model, the steel strand threading device includes two clamping members arranged opposite to each other, the clamping members are provided with a plurality of mounting holes, each mounting hole is used to accommodate a steel strand, and locking members are respectively connected to the two clamping members, the locking members are located on the side of the clamping members away from each other, and the locking members are used to connect to the winch.

[0005] The steel strand threading device according to the embodiment of the utility model has a simple structure and is easy to operate. It can thread multiple steel strands at one time, thereby improving the threading efficiency and avoiding entanglement of multiple steel strands. It can tension multiple steel strands at one time, thereby improving the tensioning quality and efficiency of the steel strands, and can reduce labor construction costs and speed up construction progress.

[0006] In some embodiments, at least a portion of the outer wall of the clamp is provided with a first thread, and the inner wall of the locking member is provided with a second thread that matches the first thread.

[0007] In some embodiments, the clamping member has a plurality of extrusion portions, and two side edges of the extrusion portions correspond to two adjacent mounting holes respectively.

[0008] In some embodiments, the outer wall of the clamping member is provided with a plurality of deformation holes, and the deformation holes are formed between adjacent extrusion portions and connected to adjacent extrusion portions.

[0009] In some embodiments, the center of the deformation hole is opposite to the center line of the mounting hole.

[0010] In some embodiments, a plurality of locking holes are arranged at intervals on the outer wall of the clamping member, and the plurality of locking holes are located on a side where the two clamping members are adjacent to each other.

[0011] In some embodiments, hanging parts are symmetrically installed at one end of the two locking parts away from each other, and hanging holes are opened on the hanging parts.

[0012] In some embodiments, the clamping member is configured as a frustoconical structure, and the locking member is configured as a conical nut.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 is a schematic diagram of a clamping member of a steel strand threading device according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of a steel strand clamped by a clamping member of a steel strand bundle threading device according to an embodiment of the utility model;

[0017] Figure 3 Schematic diagram of a locking member of a steel strand threading device according to an embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the assembly of the locking member and the clamping member of the steel strand threading device according to an embodiment of the utility model.

[0019] Reference numerals:

[0020] Steel strand threading device 100,

[0021] Clamping member 10, mounting hole 11, first thread 12, deformation hole 13, extrusion portion 14, locking hole 15,

[0022] Locking member 20 , second thread 21 , hanging member 22 , hanging hole 221 . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Reference below Figure 1-Figure 4 A steel strand threading device 100 according to an embodiment of the present invention is described.

[0025] like Figure 1 and Figure 2 As shown, according to the steel strand threading device 100 of the embodiment of the utility model, it includes two clamping members 10 arranged opposite to each other, the clamping members 10 are provided with a plurality of mounting holes 11, each mounting hole 11 is used to accommodate a steel strand, and the two clamping members 10 are respectively connected with locking members 20, the locking members 20 are located on the side of the clamping members 10 away from each other, and the locking members 20 are used to connect to the winch.

[0026] Specifically, the steel strand threading device 100 is composed of a clamp 10 and a locking piece 20. The clamp 10 is constructed as a frustum-shaped structure, which is made of a material with certain elastic properties. For example, the clamp 10 can be made of elastic steel, and of course it can also be made of other materials. The locking piece 20 is constructed as a conical nut. The locking piece 20 is assembled on the outside of the clamp 10. The clamp 10 and the locking piece 20 can be connected by threads. Of course, the two can also be connected by other assembly methods. The clamp 10 is provided with a plurality of mounting holes 11 inside, and a steel strand can be threaded in each mounting hole 11. As shown in the figure, the clamp 10 is provided with 7 mounting holes 11, which can accommodate 7 steel strands. The mounting holes 11 of the clamp 10 can be set according to the number of steel strands to be threaded. If the number of mounting holes 11 of the clamp 10 is large, the support can be set to be separate.

[0027] It should be noted that the diameter of the mounting hole 11 is larger than the diameter of the steel strand. For example, the diameter of the mounting hole 11 may be slightly larger by 2 mm to 3 mm compared with the diameter of the steel strand. This arrangement facilitates the steel strand to pass through the mounting hole 11 . One of the two clamping members 10 of the steel strand bundle threading device 100 is set in the forward direction, and the other is set in the reverse direction. The tails of the two clamping members 10 are adjacent and opposite to each other. The steel strands are sequentially inserted into the opposite mounting holes 11 of the two clamping members 10. One of the locking members 20 is installed with the clamping member 10 set in the forward direction. The clamping member 10 set in the reverse direction is slid along the steel strand to the other end. The steel strands can be combed to avoid entanglement of multiple steel strands. The combed steel strands can be numbered to facilitate subsequent tensioning. Then the other locking member 20 can be installed with the clamping member 10 set in the reverse direction. The two locking members 20 are both set on the side of the two clamping members 10 away from each other, that is, they are both set at the heads of the two clamping members 10. A steel wire rope is connected to the locking member 20, which is connected to the winch through the steel wire rope. The overall bundling of the steel strands can be achieved by traction of the winch.

[0028] According to the steel strand threading device 100 of the embodiment of the utility model, the structure is simple and the operation is convenient. It can thread a plurality of steel strands at one time, thus improving the threading efficiency and avoiding the entanglement of a plurality of steel strands. It can tension a plurality of steel strands at one time, thus improving the tensioning quality and efficiency of the steel strands, thus reducing the labor construction cost and speeding up the construction progress.

[0029] like Figure 1-Figure 3 As shown, in some embodiments, at least a portion of the outer wall of the clamp 10 is provided with a first thread 12, and the inner wall of the locking member 20 is provided with a second thread 21 that cooperates with the first thread 12. The clamp 10 and the locking member 20 are connected by threads, the outer wall of the head of the clamp 10 is provided with a first thread 12, and the inner wall of the locking member 20 is provided with a second thread 21 at a position corresponding to the first thread 12. The installation of the clamp 10 and the locking member 20 is achieved through the screw cooperation of the first thread 12 and the second thread 21. In this way, the first thread 12 is provided on the clamp 10, and the second thread 21 is provided on the locking member 20. The structure is simple, convenient to set up, convenient to connect the two, and can ensure the stability of the connection between the two. In addition, the locking member 20 provides pressure to the clamp 10 during the installation process, and such a setting facilitates the locking member 20 to apply pressure to the clamp 10 more evenly.

[0030] like Figure 1 and Figure 2 As shown, in some embodiments, the clamping member 10 has a plurality of extrusion portions 14 , and two side edges of the extrusion portions 14 correspond to two adjacent mounting holes 11 .

[0031] Specifically, the outer wall of the clamp 10 is provided with a plurality of openings in a "V-shaped" structure. The openings extend from the head of the clamp 10 to the tail of the clamp 10. The size of the openings gradually decreases in the extending direction. The number of openings is consistent with the number of mounting holes 11. The openings are connected to the mounting holes 11. The area between adjacent openings is an extrusion portion 14. The extrusion portion 14 is constructed as a trapezoidal structure. The sides of the extrusion portion 14 on the left and right sides correspond to one of the adjacent mounting holes 11, and the other side corresponds to the other adjacent mounting hole 11. The clamp 10 is elastic. During the installation of the locking member 20 and the clamp 10, the extrusion portion 14 is squeezed by the locking member 20, the aperture of the mounting hole 11 becomes smaller, and the mounting hole 11 clamps the steel strand disposed therein. In this way, by providing the extrusion portion 14, the aperture of the mounting hole 11 can be reduced, thereby allowing the mounting hole 11 to clamp the steel strand.

[0032] like Figure 1 and Figure 2As shown, specifically, the outer wall of the clamp 10 is provided with a plurality of deformation holes 13, which are formed between adjacent extrusion parts 14 and connected to adjacent extrusion parts 14, and the center of the deformation hole 13 is opposite to the center line of the mounting hole 11. The sides of the bottom ends of adjacent extrusion parts 14 that are adjacent to each other are connected to the deformation holes 13 to increase the deformation range and further reduce the aperture of the mounting hole 11. This arrangement facilitates the deformation of the clamp 10 during the installation of the locking member 20 and the clamp 10, thereby reducing the aperture of the mounting hole 11 of the clamp 10 to clamp the stranded wire.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments, a plurality of locking holes 15 are arranged at intervals on the outer wall of the clamp 10, and the plurality of locking holes 15 are located on the side adjacent to each other of the two clamps 10. The locking holes 15 are arranged at the tail of the clamp 10. When the locking member 20 is installed on the head of the clamp 10, a tool can be used to fix the tool in the locking hole 15, so as to facilitate the use of force to tighten the locking member 20 and the clamp 10. For example, a crescent wrench can be used to use force to tighten the locking member 20 and the clamp 10. This arrangement facilitates the tightening of the locking member 20 and the clamp 10, and further improves the tightness of the installation of the two.

[0034] like Figure 3 and Figure 4 As shown, in some embodiments, the ends of the two locking members 20 that are away from each other are symmetrically installed with hanging members 22, and the hanging members 22 are provided with hanging holes 221. Hanging members 22 are installed on both sides of the head of the locking member 20, and the hanging holes 221 provided on the hanging members 22 on both sides correspond to each other. The steel wire rope is inserted into the hanging holes 221, and the steel strand is inserted at one time by dragging the steel wire rope by the winch. This arrangement facilitates the connection between the steel strand bundle-threading device 100 and the steel wire rope, so that the steel strand bundle-threading device 100 can be connected to the winch, and then the winch drags the steel wire rope to insert the steel strand at one time, which can safely and quickly bundle the steel strand as a whole, thereby improving the bundle-threading efficiency.

[0035] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0037] In the description of the present invention, "plurality" means two or more.

[0038] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0039] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0040] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steel strand threading device, characterized in that: The steel strand threading device includes two clamping members arranged opposite to each other, each of which is provided with a plurality of mounting holes, each of which is used to accommodate a steel strand, and locking members are respectively connected to the two clamping members, and the locking members are located on the side of the clamping members away from each other, and the locking members are used to connect to the winch.

2. The steel strand threading device according to claim 1, characterized in that: At least a portion of the outer wall of the clamping member is provided with a first thread, and the inner wall of the locking member is provided with a second thread matching the first thread.

3. The steel strand bundle threading device according to claim 1, characterized in that: The clamping member has a plurality of extrusion parts, and two side edges of the extrusion parts correspond to two adjacent mounting holes respectively.

4. The steel strand threading device according to claim 3, characterized in that: The outer wall of the clamping member is provided with a plurality of deformation holes, and the deformation holes are formed between adjacent extrusion parts and connected with adjacent extrusion parts.

5. The steel strand bundle threading device according to claim 4, characterized in that: The center of the deformation hole is opposite to the center line of the mounting hole.

6. The steel strand bundle threading device according to claim 1, characterized in that: A plurality of locking holes are arranged at intervals on the outer wall of the clamping member, and the plurality of locking holes are located on a side where the two clamping members are adjacent to each other.

7. The steel strand bundle threading device according to claim 1, characterized in that: Hanging pieces are symmetrically installed at the ends of the two locking pieces that are away from each other, and hanging holes are opened on the hanging pieces.

8. The steel strand bundle threading device according to claim 1, characterized in that: The clamping member is configured as a frustoconical structure, and the locking member is configured as a conical nut.

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