Prestressed anchorage device for steel strand

Abstract

The utility model discloses a prestressed anchorage device for a steel strand, which comprises the steel strand, a mounting table, a fixed anchorage device and a detachable part, the steel strand is arranged in the mounting table through the fixed anchorage device, and the detachable part is detachably arranged on the fixed anchorage device; the fixing anchorage device comprises a clamping piece assembly, an anchor ring assembly and a locking piece, the clamping piece assembly, the anchor ring assembly and the locking piece are arranged on the steel strand in a sleeving mode, the anchor ring assembly and the locking piece are connected with each other, a containing cavity is formed in the anchor ring assembly and the locking piece, the clamping piece assembly is located in the containing cavity, and the inner end of the clamping piece assembly is located in the anchor ring assembly. The outer end of the clamping piece assembly is located in the locking piece, and the disassembling piece is detachably arranged on the locking piece. According to the fixing anchorage device, the anchor ring assembly is matched with the locking piece, so that the clamping piece assembly can fix the steel strand more stably, it is guaranteed that the anchorage device is not prone to loosening due to external force disturbance in the using process, and safety and stability in the construction process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel strand anchorage device technical field, concretely relates to a prestressed anchorage device for steel strand. BACKGROUND

[0002] Steel strand has wide application in many engineering fields such as building and bridge. Steel strand needs to be fixed and installed on connecting structure using fixed anchorage device, and the fixed anchorage device needs to ensure the stability and reliability of steel strand connection to ensure the safety in use. In actual engineering scene, the installation mode of the existing steel strand fixed anchorage device has some problems. The anchorage device disclosed in CN115355029A is prone to loosen under the condition of external force vibration, impact and the like in use, and even causes steel strand to slip, which brings serious safety hazard to engineering. Moreover, the traditional fixing mode is relatively cumbersome in the installation and dismounting process, and a lot of time and manpower are consumed. At the same time, the traditional anchorage device can be easily removed at will, which is very unfavorable in some occasions with high safety requirement, and there is great safety hazard. The utility model provides a prestressed anchorage device for steel strand to solve the above problems. SUMMARY

[0003] The utility model provides a prestressed anchorage device for steel strand, realizes the stable connection of steel strand, and has the advantages of convenient dismounting.

[0004] The utility model adopts the technical scheme that:

[0005] A prestressed anchorage device for steel strand, comprising a steel strand, a mounting table, a fixed anchorage device and a dismounting piece, the steel strand is arranged in the mounting table through the fixed anchorage device, and the dismounting piece is detachably arranged on the fixed anchorage device.

[0006] The fixed anchorage device comprises a clamping piece assembly, an anchor ring assembly and a locking piece, the clamping piece assembly, the anchor ring assembly and the locking piece are sleeved on the steel strand, the anchor ring assembly and the locking piece are connected with each other, and a placing cavity is formed in the inside thereof, the clamping piece assembly is located in the placing cavity, the inner end of the clamping piece assembly is located in the anchor ring assembly, the outer end of the clamping piece assembly is located in the locking piece, and the dismounting piece is detachably arranged on the locking piece.

[0007] Further, the anchor ring assembly comprises an anchor ring and an elastic piece, the inner end of the anchor ring is connected with the mounting table, the elastic piece is arranged at the outer end of the anchor ring, the locking piece is fixedly connected with the outer end of the anchor ring, and the elastic piece is located between the locking piece and the anchor ring.

[0008] Further, the locking piece is provided with a limiting block on the outer side of the locking piece; the dismounting piece comprises a dismounting ring and a handle, the dismounting ring is detachably connected to the outer periphery of the locking piece, and the inner side of the dismounting ring is provided with a limiting groove, and the limiting block is located in the limiting groove.

[0009] Further, the dismounting ring is provided with a notch groove, and the size of the notch groove is greater than the outer diameter of the steel strand.

[0010] Further, the clamping piece assembly comprises a clamping piece and a fixing rope, the clamping piece is arranged in pairs on the outer side of the steel strand, and one end of the clamping piece is provided with a binding groove, and the fixing rope is arranged in the binding groove.

[0011] Further, the inner end of the anchor ring assembly is provided with a insertion groove, and the inner end of the mounting table is provided with a positioning column, and the positioning column is located in the insertion groove.

[0012] Preferably, the locking piece and the anchor ring are connected through threads.

[0013] Preferably, the elastic piece is a spring ring and is sleeved on the anchor ring.

[0014] The utility model has the beneficial effects as follows:

[0015] The fixing anchor tool is fixed more stably by the cooperation of the anchor ring assembly and the locking piece, and the fixing anchor tool is not easy to be loosened due to external disturbance in the use process, and the safety and stability in the construction process are improved.

[0016] The installation and dismounting of the fixing anchor tool are realized by the dismounting piece, the firmness and stability of the assembled fixing anchor tool are ensured, and the safety hidden danger caused by the random dismounting of the fixing anchor tool is avoided. DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the assembled state of the utility model;

[0018] Figure 2 It is the overall structure front side schematic diagram of the disassembled state of the utility model;

[0019] Figure 3 It is the overall structure rear side schematic diagram of the disassembled state of the utility model.

[0020] Drawing reference: 1, steel strand; 2, mounting table; 21, positioning column; 3, fixing anchor tool; 31, clamping piece assembly; 311, clamping piece; 312, fixing rope; 313, binding groove; 32, anchor ring assembly; 321, anchor ring; 322, elastic piece; 323, insertion groove; 33, locking piece; 331, limiting block; 4, dismounting piece; 41, dismounting ring; 411, limiting groove; 412, notch groove; 42, handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] As shown in Figure 1 , 2 , 3, a prestressed anchorage device for steel strand, comprising a steel strand 1, a mounting table 2, a fixed anchor 3 and a dismounting piece 4, the steel strand 1 passes through the mounting table 2 and is arranged in the mounting table 2 by the fixed anchor 3, the dismounting piece 4 is detachably arranged on the fixed anchor 3, and the dismounting piece 4 is used for dismounting the fixed anchor 3, so that the installation and dismounting of the steel strand 1 in the mounting table 2 are realized.

[0024] As shown in Figure 1 , 2 , 3, the fixed anchor 3 comprises a clamping piece assembly 31, an anchor ring assembly 32 and a locking piece 33, the clamping piece assembly 31, the anchor ring assembly 32 and the locking piece 33 are sleeved on the steel strand 1, the anchor ring assembly 32 and the locking piece 33 are connected with each other, and a placing cavity is formed in the inside thereof, the clamping piece assembly 31 is located in the placing cavity, the clamping of the steel strand 1 is realized, so that the steel strand 1 can be installed in the mounting table 2, the clamping piece assembly 31 is reinforced after the connection of the anchor ring assembly 32 and the locking piece 33, so that it is more stably fixed on the steel strand 1, and is located outside the clamping piece assembly 31, so that the arbitrary dismounting of the clamping piece assembly 31 can be limited, the inner end of the clamping piece assembly 31 is located in the anchor ring assembly 32, the outer end of the clamping piece assembly 31 is located in the locking piece 33, and the dismounting piece 4 is detachably arranged on the locking piece 33 and is used for locking or dismounting the locking piece 33.

[0025] As shown in Figure 2 , 3As shown, further, the anchor ring assembly 32 comprises an anchor ring 321 and an elastic member 322, the anchor ring 321 is an open ring cylinder structure, the steel strand 1 passes through the anchor ring 321 and the mounting table 2, the inner end of the clamping piece assembly 31 is located in the anchor ring 321, the inner end of the anchor ring 321 is connected with the mounting table 2, the elastic member 322 is arranged at the outer end of the anchor ring 321, the locking member 33 is fixedly connected with the outer end of the anchor ring 321, the elastic member 322 is located between the locking member 33 and the anchor ring 321, and the elastic member 322 is used to improve the connection strength between the locking member 33 and the anchor ring 321, after the locking member 33 is tightened with the anchor ring 321, the elastic member 322 is compressed, thereby pushing the locking member 33 to move outward, so that the thread connection between the locking member 33 and the anchor ring 321 has greater engagement pressure, the connection is more compact, and the connection stability between the locking member 33 and the anchor ring 321 is improved.

[0026] As shown in Figure 2 , 3 As shown, further, the locking member 33 is a cylindrical structure, the inner end thereof is open for thread connection with the anchor ring 321, and the outer end is provided with an opening for the steel strand 1 to pass through; the locking member 33 is provided with a limiting block 331 on the outer wall thereof; the dismounting member 4 comprises a dismounting ring 41 and a handle 42, the dismounting ring 41 is detachably connected to the outer periphery of the locking member 33 and slides forward and backward along the locking member 33, and the inner side of the dismounting ring 41 is provided with a limiting groove 411, and the limiting block 331 is located in the limiting groove 411.

[0027] The limiting block 331 on the outer wall of the locking member 33 is used for clamping with the dismounting member 4, the locking member 33 is a cylindrical structure, the limiting block 331 arranged thereon cannot be manually pulled under normal circumstances, so that the locking member 33 can be effectively prevented from being randomly dismounted after installation; when the dismounting member 4 is used, the dismounting member 4 is first sleeved on the locking member 33, then the limiting block 331 is aligned with the limiting groove 411 and clamped, and then the dismounting member 4 is operated to realize locking or disengagement between the locking member 33 and the anchor ring 321.

[0028] As shown in Figure 2 , 3 As shown, further, the dismounting ring 41 is provided with a notched groove 412, the notched groove 412 is arranged for dismounting the dismounting ring 41 from the steel strand 1, and the size of the notched groove 412 is greater than the outer diameter of the steel strand 1; when the notched groove 412 is aligned with the steel strand 1, the steel strand 1 is clamped into or out of the notched groove 412, so that the dismounting member 4 can be dismounted.

[0029] As shown in Figure 2 , 3As shown, further, the clip assembly 31 comprises clips 311 and fixing ropes 312, the clips 311 are arranged in pairs on the outer side of the steel strand 1, one end of the clip 311 is provided with a binding groove 313, and the fixing rope 312 is arranged in the binding groove 313. The fixing rope 312 is used for temporarily binding and fixing the clip 311. Since the clip 311 is a single-piece structure, it cannot be stably placed on the steel strand 1. Therefore, the fixing rope 312 is arranged to temporarily bind the two clips 311 together, so that they are stably placed on the steel strand 1, and then the installation and fixation of the anchor ring assembly 32 and the locking member 33 are carried out.

[0030] Further, the inner end of the anchor ring assembly 32 is provided with a slot 323, the inner end of the mounting table 2 is provided with a positioning column 21, the positioning column 21 is located in the slot 323, and the positioning column 21 and the slot 323 are arranged in pairs and correspond one by one.

[0031] Preferably, the locking member 33 and the anchor ring 321 are connected through threads.

[0032] Preferably, the elastic member 322 is a spring ring and is sleeved on the anchor ring 321.

[0033] Preferably, the fixing rope 312 is a steel wire and is wound in the binding groove 313 of the clip 311.

[0034] The specific use method of the utility model is as follows, first, the anchor ring assembly 32 and the locking member 33 are arranged on the steel strand 1, then the two clips 311 are attached to the outer side of the steel strand 1, the fixing rope 312 is used to bind the two clips 311 together and tightly adhere to the steel strand 1, then the anchor ring assembly 32 is moved to contact with the mounting table 2, when moving, the positioning column 21 and the slot 323 are aligned, then the bound clip assembly 31 is moved to be clamped in the anchor ring assembly 32, the locking member 33 is moved to be butted with the anchor ring 321 and pre-tightened, then the dismounting piece 4 is passed through the steel strand 1 and sleeved on the locking member 33, after the dismounting piece 4 and the locking member 33 are clamped tightly, the locking member 33 and the anchor ring 321 are tightened by manually operating the dismounting piece 4, after being tightened, the dismounting piece 4 and the locking member 33 are separated and taken off from the steel strand 1, and the installation is completed.

[0035] When dismounting, the dismounting piece 4 is passed through the steel strand 1 and sleeved on the locking member 33, after the dismounting piece 4 and the locking member 33 are clamped tightly, the locking member 33 and the anchor ring 321 are loosened by manually operating the dismounting piece 4, then the locking member 33 is moved and the fixing rope 312 is unfastened to replace the clip 311, and then the operation in the installation is restored.

[0036] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, no reference signs in the claims being regarded as limiting the claims concerned.

Claims

1. A pre-stressing anchorage device for a steel strand, characterised in that: The utility model provides a steel strand fixing device, which comprises a steel strand (1), a mounting platform (2), a fixed anchor (3) and a dismounting piece (4), the steel strand (1) is arranged in the mounting platform (2) through the fixed anchor (3), and the dismounting piece (4) is detachably arranged on the fixed anchor (3); The fixed anchor (3) comprises a clamping piece assembly (31), an anchor ring assembly (32) and a locking piece (33), the clamping piece assembly (31), the anchor ring assembly (32) and the locking piece (33) are sleeved on the steel strand (1), the anchor ring assembly (32) and the locking piece (33) are connected with each other and form a placing cavity in the inside thereof, the clamping piece assembly (31) is located in the placing cavity, the inner end of the clamping piece assembly (31) is located in the anchor ring assembly (32), the outer end of the clamping piece assembly (31) is located in the locking piece (33), and the dismounting piece (4) is detachably arranged on the locking piece (33).

2. A device for pre-stressing anchorage of a steel strand as claimed in claim 1, wherein: The anchor ring assembly (32) comprises an anchor ring (321) and an elastic piece (322), the inner end of the anchor ring (321) is connected with the mounting platform (2), the elastic piece (322) is arranged at the outer end of the anchor ring (321), the locking piece (33) is fixedly connected with the outer end of the anchor ring (321), and the elastic piece (322) is located between the locking piece (33) and the anchor ring (321).

3. A device for pre-stressing anchorage of a steel strand as claimed in claim 1, wherein: A limiting block (331) is arranged on the locking piece (33), and the limiting block (331) is located on the outer side of the locking piece (33); the dismounting piece (4) comprises a dismounting ring (41) and a handle (42), the dismounting ring (41) is detachably connected to the outer periphery of the locking piece (33), a limiting groove (411) is arranged on the inner side of the dismounting ring (41), and the limiting block (331) is located in the limiting groove (411).

4. A device for pre-stressing anchorage of a steel strand as claimed in claim 3, wherein: A notch groove (412) is arranged on the dismounting ring (41), and the size of the notch groove (412) is greater than the outer diameter of the steel strand (1).

5. A device for pre-stressing anchorage of a steel strand as claimed in claim 1, wherein: The clamping piece assembly (31) comprises a clamping piece (311) and a fixing rope (312), the clamping pieces (311) are arranged in pairs on the outer side of the steel strand (1), one end of the clamping piece (311) is provided with a binding groove (313), and the fixing rope (312) is arranged in the binding groove (313).

6. A pre-stressing anchorage device for a steel strand as claimed in claim 1, characterized in that: The inner end of the anchor ring assembly (32) is provided with a slot (323), and the inner end of the mounting platform (2) is provided with a positioning column (21), and the positioning column (21) is located in the slot (323).

7. A device for pre-stressing anchorage of a steel strand as claimed in claim 2, wherein: The locking piece (33) and the anchor ring (321) are connected through threads.

8. A pre-stressing anchorage device for a steel strand as claimed in claim 2, characterized in that: The elastic piece (322) is a spring ring and is sleeved on the anchor ring (321).

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