Pressure dispersion type segmented extrusion anchor cable

Abstract

The utility model discloses a pressure dispersion type segmented extrusion anchor cable which comprises a steel strand, a first extrusion sleeve, a second extrusion sleeve, a third extrusion sleeve, a bearing plate, a steel spring, a first positioning mechanism, a second positioning mechanism, a pressing plate and a connecting mechanism. The end of the steel strand sequentially penetrates through the bearing plate, the first extrusion sleeve, the second extrusion sleeve, the third extrusion sleeve and the pressing plate, and the pressing plate is located on the side, away from the center of the steel strand, of the bearing plate. Steel springs are arranged between the first extrusion sleeve, the second extrusion sleeve or the third extrusion sleeve and the outer wall of the steel strand; the bearing plate and the pressing plate clamp the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve, and the bearing plate and the pressing plate are connected through a connecting mechanism; and a first positioning mechanism is arranged between the first extrusion sleeve and the second extrusion sleeve. According to the pressure dispersion type segmented extrusion anchor cable, the problem that in the prior art, due to the fact that only one extrusion sleeve is arranged on each steel strand, the extrusion sleeves and the bearing plate slide off together easily is solved.

Description

Technical Field

[0001] The utility model relates to an anchor cable, in particular to a pressure-dispersed segmented extrusion anchor cable. Background Art

[0002] In the prior art, the pressure-dispersed anchor cable includes: a steel strand, an extrusion sleeve, a bearing plate, a steel spring, a pressure plate and a connecting mechanism. The end of the steel strand passes through the bearing plate, the extrusion sleeve and the pressure plate in sequence. A steel spring is arranged between the extrusion sleeve and the steel strand. The bearing plate and the pressure plate press the steel spring. Each steel strand passes through a pair of extrusion sleeves and steel springs. At the same time, there are at least three steel strands passing through the bearing plate and the pressure plate.

[0003] The above-mentioned pressure-dispersed anchor cable is used in slope protection projects, etc. During the application process, the bearing plate and the pressure plate are buried in the anchor hole. When the anchor is solidified, since a bearing plate at the anchor passes through multiple steel strands, each steel strand is subjected to a single tensioning force, thereby dispersing the total tensioning force into several smaller single tensioning forces, improving the stress state at the anchor, so that the bearing plate and the pressure plate can be stably anchored at the anchor position. However, there are still some disadvantages: since there is only one extrusion sleeve on each steel strand, it is easy for the extrusion sleeve and the bearing plate to slide down together, resulting in unstable anchoring and prone to safety accidents. Utility Model Content

[0004] The utility model provides a pressure-dispersed segmented extrusion anchor cable, which solves the problem in the prior art that the extrusion sleeve and the bearing plate are prone to slide down together because each steel strand has only one extrusion sleeve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a pressure-dispersed segmented extrusion anchor cable, comprising: a steel strand, a first extrusion sleeve, a second extrusion sleeve, a third extrusion sleeve, a bearing plate, a steel spring, a first positioning mechanism, a second positioning mechanism, a pressure plate and a connecting mechanism; the end of the steel strand passes through the bearing plate, the first extrusion sleeve, the second extrusion sleeve, the third extrusion sleeve and the pressure plate in sequence, and the pressure plate is located on the side of the bearing plate away from the center of the steel strand; steel springs are arranged between the first extrusion sleeve, the second extrusion sleeve or the third extrusion sleeve and the outer wall of the steel strand; the bearing plate and the pressure plate clamp the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve, and the bearing plate and the pressure plate are connected by a connecting mechanism; a first positioning mechanism is arranged between the first extrusion sleeve and the second extrusion sleeve, and the first positioning mechanism is used to position the second extrusion sleeve on the first extrusion sleeve; a second positioning mechanism is arranged between the second extrusion sleeve and the third extrusion sleeve, and the second positioning mechanism is used to position the third extrusion sleeve on the second extrusion sleeve.

[0007] Preferably, the second extrusion sleeve includes: a small sleeve, a transition sleeve and a large sleeve, the inner wall of the small sleeve is in close contact with the outer wall of the steel strand, the small sleeve is in positioning contact with the first extrusion sleeve, the small sleeve is connected to the large sleeve through the transition sleeve, the outer diameter of the small sleeve is smaller than the outer diameter of the large sleeve, a steel spring is installed between the inner wall of the large sleeve and the steel strand, and the small sleeve is the first positioning mechanism.

[0008] Preferably, the end of the first extrusion sleeve close to the second extrusion sleeve forms a first tapered section, and the end of the small section sleeve away from the transition sleeve is provided with a positioning hole for the first tapered section to extend into.

[0009] Preferably, the second positioning mechanism includes: a limiting sleeve, a second conical section formed at the end of the second extrusion sleeve near the third extrusion sleeve, a third conical section formed at the end of the third extrusion sleeve near the second extrusion sleeve, the second conical section extends into one end of the limiting sleeve, and the other end of the limiting sleeve is for the third conical section to extend into, the limiting sleeve is for the steel strand to pass through, and the inner wall of the limiting sleeve is in close contact with the steel strand.

[0010] Preferably, a guide cap is connected to the pressing plate, and an end of the guide cap away from the pressing plate is a conical structure.

[0011] Preferably, the guide cap is threadedly connected to the pressing plate.

[0012] Preferably, the connection mechanism includes: a bolt and a nut, the bolt passes through the bearing plate and the pressure plate, both ends of the bolt are threadedly connected with nuts, and the two nuts clamp the bearing plate and the pressure plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the present application, firstly, three sections of extrusion sleeves are installed on the end of the steel strand by extrusion, namely: the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve, so that the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve are all tightened on the end of the steel strand. When one extrusion sleeve is detached from the steel strand after being anchored for a long time, the other extrusion sleeve is still tightened on the steel strand, thereby reducing the probability of the steel strand being detached from the anchoring place and improving the safety after anchoring. Then, in order to ensure that the steel strand remains in a straight line after the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve are squeezed on the steel strand, so as to ensure that the steel strand tightened by the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve can pass through the pressure plate, so as to ensure that the pressure plate can be finally installed in place, a first positioning mechanism and a second positioning mechanism are designed to position the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve relative to each other, thereby ensuring that the final pressure plate can be installed in place.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a pressure-dispersed segmented extrusion anchor cable.

[0017] Figure 2 It is a schematic diagram of the structure of the steel strand, the first extrusion sleeve, the second extrusion sleeve and the third extrusion sleeve.

[0018] Figure numerals: steel strand 1, first extrusion sleeve 2, first conical section 20, second extrusion sleeve 3, second conical section 30, small section sleeve 31, transition sleeve 32, large section sleeve 33, third extrusion sleeve 4, third conical section 40, bearing plate 5, second positioning mechanism 7, pressure plate 8, connecting mechanism 9, bolt 91, nut 92, guide cap 10. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0020] like Figure 1 as well as Figure 2 As shown, the utility model discloses a pressure-dispersed segmented extrusion anchor cable, comprising: a steel strand 1, a first extrusion sleeve 2, a second extrusion sleeve 3, a third extrusion sleeve 4, a bearing plate 5, a steel spring (not shown), a first positioning mechanism, a second positioning mechanism 7, a pressing plate 8 and a connecting mechanism 9; the end of the steel strand 1 passes through the bearing plate 5, the first extrusion sleeve 2, the second extrusion sleeve 3, the third extrusion sleeve 4 and the pressing plate 8 in sequence, and the pressing plate 8 is located on the side of the bearing plate 5 away from the center of the steel strand 1; the first extrusion sleeve 2, the second extrusion sleeve 3 or the third extrusion sleeve 4 to the outer wall of the steel strand 1 are provided with steel springs; the bearing plate 5 and the pressing plate 8 clamp the first extrusion sleeve 2, the second extrusion sleeve 3 and the third extrusion sleeve 4, and the bearing plate 5 and the pressing plate 8 are connected by a connecting mechanism 9; a first positioning mechanism is provided between the first extrusion sleeve 2 and the second extrusion sleeve 3, and the first positioning mechanism is used to position the second extrusion sleeve 3 on the first extrusion sleeve 2; a second positioning mechanism 7 is provided between the second extrusion sleeve 3 and the third extrusion sleeve 4, and the second positioning mechanism 7 is used to position the third extrusion sleeve 4 on the second extrusion sleeve 3.

[0021] The second extrusion sleeve 3 includes: a small sleeve 31, a transition sleeve 32 and a large sleeve 33. The inner wall of the small sleeve 31 is in close contact with the outer wall of the steel strand 1. The small sleeve 31 is in positioning contact with the first extrusion sleeve 2. The small sleeve 31 is connected to the large sleeve 33 through the transition sleeve 32. The outer diameter of the small sleeve 31 is smaller than the outer diameter of the large sleeve 33. A steel spring is installed between the inner wall of the large sleeve 33 and the steel strand 1. The small sleeve 31 is the first positioning mechanism. The use of the limiting sleeve of the second positioning mechanism 7 is reduced. The small sleeve 31 is formed on the second extrusion sleeve 3, which can not only position the steel spring in the second extrusion sleeve 3, but also realize that the small sleeve 31 is formed together when the second extrusion sleeve 3 is formed, reducing the steps of producing parts and improving production efficiency.

[0022] The end of the first extrusion sleeve 2 close to the second extrusion sleeve 3 forms a first tapered section 20, and the end of the small section sleeve 31 away from the transition sleeve 32 is provided with a positioning hole for the first tapered section 20 to extend into, so as to achieve positioning contact between the small section sleeve 31 and the first extrusion sleeve 2.

[0023] The second positioning mechanism 7 includes: a limiting sleeve, a second conical section 30 is formed at the end of the second extrusion sleeve 3 close to the third extrusion sleeve 4, a third conical section 40 is formed at the end of the third extrusion sleeve 4 close to the second extrusion sleeve 3, the second conical section 30 extends into one end of the limiting sleeve, and the other end of the limiting sleeve is for the third conical section 40 to extend into, the limiting sleeve is for the steel strand 1 to pass through, and the inner wall of the limiting sleeve is in close contact with the steel strand 1. The state of keeping the second extrusion sleeve 3 and the third extrusion sleeve 4 in mutual positioning is achieved, and at the same time, the inner wall of the limiting sleeve is in close contact with the steel strand 1, ensuring that the relative position of the limiting sleeve and the steel strand 1 is constant, so that the positions of the steel strand 1, the second extrusion sleeve 3, and the third extrusion sleeve 4 can be positioned, so that all the steel strands 1 can pass through the pressure plate 8 at one time in the future.

[0024] The pressing plate 8 is connected with a guide cap 10, and the end of the guide cap 10 away from the pressing plate 8 is a conical structure. An anchor hole is generally opened at the anchoring position, and the anchor hole is deep, so the guide cap 10 is designed to guide the entire pressing plate 8 and the bearing plate 5 into the anchor hole.

[0025] The guide cap 10 is threadedly connected to the pressing plate 8. The connection between the guide cap 10 and the pressing plate 8 is realized.

[0026] The connecting mechanism 9 includes: a bolt 91 and a nut 92. The bolt 91 passes through the bearing plate 5 and the pressing plate 8, and the two ends of the bolt 91 are threadedly connected with nuts 92. The two nuts 92 clamp the bearing plate 5 and the pressing plate 8. The bolt 91 and the nuts 92 maintain the state in which the bearing plate 5 and the pressing plate 8 clamp the first extrusion sleeve 2, the second extrusion sleeve 3 and the third extrusion sleeve 4, preventing the first extrusion sleeve 2, the second extrusion sleeve 3 and the third extrusion sleeve 4 from becoming loose, ensuring that after one of the first extrusion sleeve 2, the second extrusion sleeve 3 and the third extrusion sleeve 4 disengages from the steel strand 1, the others can still position the bearing plate 5 and the pressing plate 8 on the steel strand 1.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. Pressure-dispersed segmented extrusion type anchor cable, characterized in that, include: Steel strand (1), a first extrusion sleeve (2), a second extrusion sleeve (3), a third extrusion sleeve (4), a bearing plate (5), a steel spring, a first positioning mechanism, a second positioning mechanism (7), a pressure plate (8) and a connecting mechanism (9); The end of the steel strand (1) passes through the bearing plate (5), the first extrusion sleeve (2), the second extrusion sleeve (3), the third extrusion sleeve (4) and the pressure plate (8) in sequence, and the pressure plate (8) is located on the side of the bearing plate (5) away from the center of the steel strand (1); a steel spring is provided between the first extrusion sleeve (2), the second extrusion sleeve (3) or the third extrusion sleeve (4) and the outer wall of the steel strand (1); The bearing plate (5) and the pressing plate (8) clamp the first extrusion sleeve (2), the second extrusion sleeve (3) and the third extrusion sleeve (4), and the bearing plate (5) and the pressing plate (8) are connected via a connecting mechanism (9); A first positioning mechanism is provided between the first extrusion sleeve (2) and the second extrusion sleeve (3), and the first positioning mechanism is used to position the second extrusion sleeve (3) on the first extrusion sleeve (2); a second positioning mechanism (7) is provided between the second extrusion sleeve (3) and the third extrusion sleeve (4), and the second positioning mechanism (7) is used to position the third extrusion sleeve (4) on the second extrusion sleeve (3).

2. The pressure-dispersive segmented extrusion type anchor cable according to claim 1, wherein The second extrusion sleeve (3) comprises: a small sleeve (31), a transition sleeve (32) and a large sleeve (33); the inner wall of the small sleeve (31) is in close contact with the outer wall of the steel strand (1); the small sleeve (31) is in positioning contact with the first extrusion sleeve (2); the small sleeve (31) is connected to the large sleeve (33) via the transition sleeve (32); the outer diameter of the small sleeve (31) is smaller than the outer diameter of the large sleeve (33); a steel spring is installed between the inner wall of the large sleeve (33) and the steel strand (1); and the small sleeve (31) is a first positioning mechanism.

3. The pressure-dispersive segmented extrusion type anchor cable according to claim 2, characterized in that, The end of the first extrusion sleeve (2) close to the second extrusion sleeve (3) forms a first conical section (20), and the end of the small section sleeve (31) away from the transition sleeve (32) is opened to form a positioning hole for the first conical section (20) to extend into.

4. The pressure-dispersive segmented extrusion type anchor cable according to claim 1, characterized in that, The second positioning mechanism (7) comprises: a limiting sleeve, a second tapered section (30) formed at the end of the second extrusion sleeve (3) close to the third extrusion sleeve (4), a third tapered section (40) formed at the end of the third extrusion sleeve (4) close to the second extrusion sleeve (3), the second tapered section (30) extends into one end of the limiting sleeve, and the other end of the limiting sleeve is for the third tapered section (40) to extend into, the limiting sleeve is for the steel strand (1) to pass through, and the inner wall of the limiting sleeve is in close contact with the steel strand (1).

5. The pressure-dispersive segmented extrusion type anchor cable according to any one of claims 1 to 4, characterized in that, A guide cap (10) is connected to the pressing plate (8), and the end of the guide cap (10) away from the pressing plate (8) is a conical structure.

6. The pressure-dispersive segmented extrusion type anchor cable according to claim 5, characterized in that, The guide cap (10) is threadedly connected to the pressing plate (8).

7. The pressure-dispersive segmented extrusion type anchor cable according to claim 5, characterized in that, The connecting mechanism (9) comprises: Bolt (91) and nut (92), the bolt (91) passes through the bearing plate (5) and the pressure plate (8), both ends of the bolt (91) are threadedly connected with nuts (92), and the two nuts (92) clamp the bearing plate (5) and the pressure plate (8).

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