Dual-purpose quick-mounting anchor cable structure

Abstract

The utility model discloses a dual-purpose fast installation anchor cable structure which comprises a steel strand arranged in a supporting system, and further comprises an installation mechanism used for forming an anchor cable installation structure and an end head mechanism used for meeting connection requirements, the installation mechanism is assembled at one end of the steel strand, and the end head mechanism is assembled at the other end of the steel strand. The anchor rod machine has the advantages that the anchor rod machine is simple in structure, fast installation and fixation of the anchor cable can be achieved only through the anchor rod machine without depending on any precise structure, high installation load is achieved, the situation that the whole anchor cable is scrapped due to failure of a certain part can be effectively avoided, the using effect is good, the cost is low, and the anchor rod machine is suitable for popularization and application. According to the anchor cable structure, the mounting mechanism is arranged to be matched with the end mechanism, rapid mounting and anchoring of the anchor cable structure can be achieved, that is, rapid pre-tightening force application can be achieved without traditional tensioning operation, the mounting stability is high, and the anchor cable structure is suitable for hollow grouting steel strands or solid steel strands, diversified in use condition and high in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of support anchor cables, in particular to a dual-purpose quick-installation anchor cable structure. Background Technique

[0002] In the prior art, with the increase of the coal mining depth, the difficulty of roadway support and repair in the coal mining process also increases continuously. Grouting has become an effective means and method to solve the current support problems. The grouting hollow anchor cable is mainly used for coal mine roadway support, shaft and roadway support, and other surrounding rock supports, etc. First, the anchor cable is inserted into the hole drilled in the rock formation, and the front part of the cable body is anchored to the rock mass with an anchoring agent. Then, the cable tail is tensioned with a tensioning device. After tensioning, the anchoring slurry is injected into the gap between the anchor cable and the hole through the central pipe of the anchor cable. After solidification, the anchor cable and the rock formation become an integral whole, ultimately achieving that the rock formation in the roadway does not collapse or deform, thereby protecting the personal safety of the construction personnel in the roadway. The traditional grouting anchor cable generally adopts a solid anchor cable structure, which brings great difficulties to the support construction, has a high labor cost and a large labor intensity. In addition, there is still a phenomenon of slurry leakage in the support technology, resulting in uneven anchoring of the anchor cable and the rock formation hole, failing to meet the support requirements and causing the anchor cable to be scrapped, and posing a safety hazard and huge economic losses. The existing installation method of the anchoring system is relatively complex, and the anchor cable structure cannot be quickly installed in the initial stage of chamber excavation to achieve the support function. Moreover, the existing anchor cable installation structure can only be specifically used for the corresponding type of anchor cable, and the versatility is poor.

[0003] The Chinese utility model patent with the application number of 202122968268.2 discloses an anchor cable for quickly installing a metal mesh in a mine, which includes: a hollow steel strand, an anchor is installed on the outer wall of the hollow steel strand, a tray is installed at one end of the hollow steel strand close to the anchor, a push pipe is installed on the surface of the hollow steel strand close to one end of the tray, a slurry stop plug is connected to one side of the push pipe, a grouting pipe is installed inside the hollow steel strand, a support waist drum is installed on the side of the hollow steel strand close to the tray and close to the grouting pipe, and a buckle is installed at one end of the hollow steel strand. However, the structure of this kind of anchor cable for quickly installing a metal mesh in a mine is relatively complex, and it depends on multiple sets of precise structures to realize the quick installation and fixation of the anchor cable. If a certain precise structure fails, the whole anchor cable will be scrapped, and the use effect is poor. Moreover, it can only be applied to the hollow grouting anchor cable and cannot be applied to the solid steel strand structure, and the use situation is relatively single. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dual-purpose quick-installation anchor cable structure.

[0005] To achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A dual-purpose quick-installation cable anchor structure, including a steel strand, the steel strand is arranged in a support system, and further includes an installation mechanism for forming the cable anchor installation structure and an end mechanism for meeting connection requirements. The installation mechanism is assembled at one end of the steel strand, and the end mechanism is configured at the end of the installation mechanism away from the steel strand.

[0007] The installation mechanism includes an installation bolt and an installation nut. The installation bolt is arranged at one end of the steel strand and is sleeved with the steel strand. The steel strand penetrates through the installation bolt. The installation nut is sleeved at one end of the installation bolt close to the steel strand and is threadedly connected with the installation nut.

[0008] The installation bolt includes a sleeved part and an installation part. The sleeved part and the installation part are integrally formed and both are provided with a hollow structure inside. Both the outer sides of the sleeved part and the installation part are provided with external threads and the pitches of the external threads on both outer sides are different. The installation bolt is sleeved with the end of the steel strand through the sleeved part, and the installation nut is sleeved on the outer side of the sleeved part and is threadedly connected with the sleeved part.

[0009] The end mechanism is arranged inside the installation part. The inside of the installation part is provided with a conical through-hole structure corresponding to the end mechanism. The outer diameter of the installation part is larger than the outer diameter of the sleeved part.

[0010] The end mechanism includes an installation end and a strand joint. The installation end is arranged inside the installation part of the installation bolt and is embedded and connected with the installation part. The strand joint is arranged at one end of the steel strand close to the installation bolt and is sleeved and connected with the steel strand. There is a spacing between the strand joint and the installation end.

[0011] It further includes an injection joint. The injection joint is arranged at one end of the strand joint away from the installation end and is fixedly connected with the strand joint.

[0012] The installation end is provided with a conical end structure corresponding to the conical through-hole structure inside the installation part, and an installation groove is provided on the side of the installation end away from the sleeved part. The installation groove is provided with an annular arc groove structure. The installation end and the installation groove together form a wedge-shaped plug structure.

[0013] The inside of the installation end is provided with internal threads and a wedge-shaped locking wire structure is arranged at the internal threads.

[0014] The steel strand is a hollow strand structure or a solid strand structure, and the end of the steel strand away from the installation bolt is an anchoring section.

[0015] It also includes grouting holes and spacers. The grouting holes are arranged in the middle of the steel strand and penetrate through the steel strand. There are several groups of spacers, and several groups of spacers are arranged side by side and spaced inside the steel strand and fixedly connected to the steel strand.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The structure is simple. Without relying on any precise structure, only the anchor rod machine itself can achieve the rapid installation and fixation of the cable anchor, and achieve a high installation load. It can effectively avoid the overall scrapping of the cable anchor due to the failure of a certain part. The use effect is good. With the cooperation of the installation mechanism and the end head mechanism, the rapid installation and anchoring of the cable anchor structure can be achieved, that is, the rapid application of the pre-tightening force can be achieved without the traditional tensioning operation. The installation stability is strong, and it is applicable to hollow grouting steel strands or solid steel strands, with diverse usage situations and strong applicability. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the installation bolt of the present utility model;

[0020] Figure 3 is the cross-sectional view of the cooperation between the installation bolt and the installation end head of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the installation end head of the present utility model;

[0022] Figure 5 is the cross-sectional view of the cooperation between the installation end head and the installation groove of the present utility model;

[0023] Figure 6 is the schematic diagram of the cooperation between the grouting holes, spacers and the steel strand of the present utility model.

[0024] In the figure: 1. Steel strand; 2. Installation bolt; 3. Installation nut; 4. Installation end head; 5. Strand joint; 6. Injection joint; 7. Installation groove; 8. Grouting hole; 9. Spacer. Detailed Description of the Embodiment

[0025] The following further describes the present utility model in detail with reference to the drawings.

[0026] A dual-purpose type rapid installation cable anchor structure includes a steel strand 1. The steel strand 1 is arranged in the support system. It also includes an installation mechanism for forming the cable anchor installation structure and an end head mechanism for meeting the connection requirements. The installation mechanism is assembled at one end of the steel strand 1, and the end head mechanism is configured at the end away from the steel strand 1 of the installation mechanism. The overall structural schematic diagram of the present utility model is as Figure 1 shown.

[0027] The installation mechanism includes an installation bolt 2 and an installation nut 3. The installation bolt 2 is arranged at one end of the steel strand 1 and is sleeved with the steel strand 1. The steel strand 1 passes through the installation bolt 2. The installation nut 3 is sleeved on the end of the installation bolt 2 close to the steel strand 1 and is threadedly connected with the installation bolt 2. The installation mechanism is combined by the installation bolt 2 and the installation nut 3 to form an installation structure at the end of the steel strand 1 to meet its installation requirements. Among them, the installation bolt 2 is used as the installation structure at the end of the steel strand 1 and provides installation support for the installation nut 3. The installation nut 3 is used to cooperate with the installation bolt 2 to meet the installation requirements of the steel strand 1, so as to jointly form a cable structure with the steel strand 1 to meet the construction requirements of the support system. The schematic structural diagram of the installation bolt 2 of the present utility model is as Figure 2 shown.

[0028] The installation bolt 2 includes a sleeved part and an installation part. The sleeved part and the installation part are integrally formed and both are provided with a hollow structure inside. The outer sides of the sleeved part and the installation part are both provided with external threads and the pitches of the external threads on their outer sides are different. The installation bolt 2 is sleeved with the end of the steel strand 1 through the sleeved part. The installation nut 3 is sleeved on the outer side of the sleeved part and is threadedly connected with the sleeved part. Among them, the sleeved part is used as the sleeved structure on the installation bolt 2 to meet the installation requirements between the installation bolt 2 and the steel strand 1. The installation part is used to provide installation support for the end head mechanism. The cross-sectional view of the cooperation between the installation bolt 2 and the installation end head 4 of the present utility model is as Figure 3 shown.

[0029] The end head mechanism is arranged inside the installation part. The inside of the installation part is correspondingly provided with a tapered through-hole structure for the end head mechanism. The outer diameter of the installation part is larger than the outer diameter of the sleeved part. Among them, the tapered through-hole structure is used as the installation structure inside the installation part to meet the installation requirements of the end head mechanism.

[0030] The end head mechanism includes an installation end head 4 and a strand joint 5. The installation end head 4 is arranged inside the installation part of the installation bolt 2 and is embedded and connected with the installation part. The strand joint 5 is arranged at one end of the steel strand 1 close to the installation bolt 2 and is sleeved and connected with the steel strand 1. There is a gap between the strand joint 5 and the installation end head 4. The end head mechanism is combined by the installation end head 4 and the strand joint 5 to form a joint structure at the end of the steel strand 1. Among them, the installation end head 4 is used to jointly form a detachable end head structure with the installation part of the installation bolt 2 to meet the rapid installation requirements of the cable and can ensure the installation stability of the cable. The strand joint 5 is used as the joint structure at the end of the steel strand 1. The schematic structural diagram of the installation end head 4 of the present utility model is as Figure 4 shown.

[0031] It further includes an injection joint 6. The injection joint 6 is arranged at one end of the strand joint 5 away from the installation end head 4 and is fixedly connected with the strand joint 5. Among them, the injection joint 6 is used as the grouting structure at the end of the cable to meet the grouting requirements of the cable.

[0032] The tapered through-hole structure inside the installation part corresponding to the installation end 4 is set as a tapered end structure, and an installation groove 7 is provided on the side of one end of the installation end 4 away from the sleeved part. The installation groove 7 is set as an annular arc groove structure. The installation end 4 and the installation groove 7 together form a wedge-shaped plug structure. The inside of the installation end 4 is provided with internal threads, and a wedge-shaped locking line structure is provided at the internal threads. Among them, the installation groove 7 is used as a disassembly and assembly groove structure at the end of the installation end 4 to facilitate the disassembly and assembly operation of the installation end 4. The wedge-shaped locking line, the outer side wall of the installation end 4, and the tapered through-hole inside the installation part together form three sets of oppositely arranged wedge-shaped structures, which can effectively improve the installation stability of the end of the anchor cable and avoid the phenomenon of tripping. The cross-sectional view of the cooperation between the installation end 4 and the installation groove 7 of the present utility model is as Figure 5 shown.

[0033] The steel strand 1 is a hollow strand structure or a solid strand structure. One end of the steel strand 1 away from the installation bolt 2 is an anchoring section. Among them, the hollow strand structure or the solid strand structure can be selected as the steel strand 1 in the anchor cable according to actual use requirements.

[0034] Among them, when the steel strand 1 is a hollow strand structure, it further includes a grouting hole 8 and a spacer 9. The grouting hole 8 is arranged in the middle of the steel strand 1 and penetrates the steel strand 1. There are several groups of spacers 9. The several groups of spacers 9 are arranged side by side and spaced inside the steel strand 1 and are fixedly connected to the steel strand 1. Among them, the grouting hole 8 is used as a grouting structure on the anchor cable to meet the grouting requirements of the anchor cable. The spacer 9 is used to separate the space inside the steel strand 1 and ensure the support strength of the steel strand 1. The schematic diagram of the cooperation between the grouting hole 8 and the spacer 9 and the steel strand 1 of the present utility model is as Figure 6 shown.

[0035] Among them, when a solid strand is selected, there is no need to set the injection joint 6, the grouting hole 8, and the spacer 9. During support, the gelling material can be pre-injected into the anchor hole.

[0036] Working principle:

[0037] Taking the hollow strand as an example, in use, an anchor hole is drilled in the environment to be supported. The anchoring section of the steel strand 1 is inserted into the anchor hole through the anchoring device. The installation bolt 2 and the installation nut 3 are assembled at one end of the steel strand 1 away from the anchoring section. The installation end 4 is sleeved on one end of the steel strand 1 protruding from the installation bolt 2 and the installation end 4 is fitted inside the installation part of the installation bolt 2. Through the cooperation of the wedge-shaped locking line, the outer side wall of the installation end 4, and the tapered through-hole inside the installation part, the rapid installation of the steel strand 1 can be realized. Then, the injection joint 6 is assembled on one end of the steel strand 1 protruding from the installation end 4 through the strand joint 5, and the installation of the anchor cable can be realized. Then, the injection joint 6 is connected to the grouting device, and the grouting operation of the anchor cable can be carried out.

[0038] The beneficial effects of the present utility model are as follows: the structure is simple, and it does not need to rely on any precise structure. Only the bolt machine itself can realize the rapid installation and fixation of the cable anchor, and achieve a high installation load. It can effectively avoid the overall scrapping of the cable anchor caused by the failure of a certain part. The use effect is good. It is provided with an installation mechanism cooperating with the end head mechanism, which can realize the rapid installation and anchoring of the cable anchor structure, that is, the rapid application of the pre-tightening force can be realized without the traditional tensioning operation. The installation stability is strong, and it is applicable to hollow grouting steel stranded wires or solid steel stranded wires, with various usage situations and strong applicability.

[0039] The above has described in detail an embodiment of the present utility model, but the content is only the preferred embodiment of the present utility model and cannot be considered as limiting the implementation scope of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. A dual-purpose fast-installation anchor cable structure, comprising a steel strand (1), wherein the steel strand (1) is arranged in a support system, characterized in that: It also includes a mounting mechanism for forming an anchor cable mounting structure and a terminal mechanism for meeting connection requirements, the mounting mechanism being mounted on one end of the steel strand (1), and the terminal mechanism being arranged at an end of the mounting mechanism away from the steel strand (1); The mounting mechanism comprises a mounting bolt (2) and a mounting nut (3), wherein the mounting bolt (2) is arranged at one end of the steel strand (1) and is sleeved with the steel strand (1), the steel strand (1) passes through the mounting bolt (2), and the mounting nut (3) is sleeved at one end of the mounting bolt (2) close to the steel strand (1) and is threadedly connected with the mounting nut (3); The mounting bolt (2) comprises a sleeve portion and a mounting portion, the sleeve portion and the mounting portion are integrally formed and both are hollow in structure, the sleeve portion and the mounting portion are both provided with external threads on the outside, and the pitches of the external threads on the outsides of the two are different, the mounting bolt (2) is sleeved with the end of the steel strand (1) through the sleeve portion, and the mounting nut (3) is sleeved on the outside of the sleeve portion and is threadedly connected to the sleeve portion; The end head mechanism is arranged inside the mounting part, the interior of the mounting part corresponding to the end head mechanism is arranged as a tapered through hole structure, and the outer diameter of the mounting part is larger than the outer diameter of the sleeve part; The end structure comprises a mounting end (4) and a stranded wire joint (5), wherein the mounting end (4) is arranged on the inner side of the mounting portion of the mounting bolt (2) and is embedded in the mounting portion, and the stranded wire joint (5) is arranged at one end of the steel strand (1) close to the mounting bolt (2) and is sleeved and connected to the steel strand (1), and a distance is left between the stranded wire joint (5) and the mounting end (4).

2. A dual-purpose quick-install anchor cable structure as claimed in claim 1, characterized in that: It also comprises an injection joint (6), which is arranged at one end of the twisted wire joint (5) away from the mounting end (4) and is fixedly connected to the twisted wire joint (5).

3. A dual-purpose quick-install anchor cable structure as claimed in claim 2, characterized in that: The mounting end (4) is configured as a tapered end structure corresponding to the tapered through hole structure inside the mounting portion, and a mounting groove (7) is provided on the side of one end of the mounting end (4) away from the sleeve portion, the mounting groove (7) being configured as an annular arc groove structure, and the mounting end (4) and the mounting groove (7) together constitute a wedge-shaped plug structure.

4. A dual-purpose quick-install anchor cable structure as claimed in claim 3, characterized in that: The interior of the mounting end (4) is provided with an internal thread and a wedge-shaped locking wire structure is provided at the internal thread.

5. A dual-purpose quick-install anchor cable structure as claimed in claim 4, characterized in that: The steel strand (1) is a hollow strand structure or a solid strand structure, and the end of the steel strand (1) away from the mounting bolt (2) is an anchoring section.

6. A dual-purpose quick-install anchor cable structure as claimed in claim 5, characterized in that: It also includes a grouting hole (8) and a spacer (9), wherein the grouting hole (8) is arranged in the middle of the steel strand (1) and passes through the steel strand (1), and the spacer (9) is provided in a plurality of groups, wherein the plurality of groups of the spacers (9) are arranged side by side and spaced apart inside the steel strand (1) and are fixedly connected to the steel strand (1).

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