A device for extending an anchor cable or an anchor rod into a tensioning device

Abstract

The invention discloses a device for extending an anchor cable or an anchor rod into a tensioning device, comprising: a lower circular ring, an outer circular ring, an inner circular ring, and an anchoring mechanism, which is a cylindrical shape with openings on both the upper and lower sides and is located above the outer circular ring, wherein the upper opening is large and is used for extending the exposed end of the anchor rod or the anchor rod in the process of pushing the tensioning device upward, and the lower opening is small and is used for the anchor rod or the anchor rod to continue to extend downward and pass through the lower circular ring into a fixing hole of the tensioning device to fix the anchor cable or the anchor rod, thereby allowing the tensioning device to tension the anchor rod or the anchor cable; the invention can quickly extend the anchor rod or the anchor cable into the fixing hole of the tensioning oil cylinder, thereby avoiding the situation where the exposed end of the anchor cable or the anchor rod has been extended into the fixing hole of the tensioning device for a certain distance, and then it is found that the fixing hole of the tensioning device is not coaxial with the anchor cable or the anchor rod, thereby causing the anchor cable or the anchor rod to be stuck when it is extended into the fixing hole, so the invention improves production efficiency, reduces production time, and has low requirements on operators.

Description

Technical Field

[0001] The invention belongs to the field of anchor cable tunnel excavation working face support, and in particular relates to a device for extending an anchor cable or an anchor rod into a tensioning device. Background Art

[0002] Anchor cables or bolts are the most basic components of tunnel support in modern coal mines. They reinforce the surrounding rock of the tunnel so that the surrounding rock supports itself. Now anchors are not only used in mines, but also in engineering technology to reinforce the main body of slopes, tunnels, and dams.

[0003] During the process of supporting the working face of anchor cable tunnel excavation in a certain mine, sometimes when the tunnel height is too high, the operator needs to lift the tensioning cylinder upwards so that the anchor cable extends into the fixed anchor cable or anchor rod fixing hole of the tensioning equipment, thereby allowing the tensioning cylinder to pull the anchor cable or anchor rod.

[0004] In the prior art, when the anchor cable or anchor rod is inserted into the tensioning cylinder for use, at least two operators are required to cooperate and laboriously push the tensioning cylinder upward. Sometimes, when the tunnel height is too high, the operators need to set up scaffolding or stand on a ladder, and then push the tensioning cylinder upward to allow the anchor cable or anchor rod to extend into the fixing hole of the tensioning cylinder. During the process of pushing the tensioning cylinder upward, the anchor rod or anchor cable cannot be quickly inserted into its fixing hole, resulting in difficulty in insertion. In addition, the operation is labor-intensive and time-consuming, affecting the operating efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a device for extending an anchor cable or an anchor rod into a tensioning device, so as to solve the problem that the anchor rod or the anchor cable cannot be quickly extended into its fixing hole during the upward pushing process of the tensioning cylinder due to the excessive height of the tunnel.

[0006] The present invention adopts the following technical solution: a device for extending an anchor cable or an anchor rod into a tensioning device, comprising:

[0007] Lower ring, horizontal setting,

[0008] The outer ring is horizontally arranged coaxially with the lower ring, located on the upper side of the lower ring, and fixedly connected to the lower ring through a first connecting rod.

[0009] The inner ring is horizontal and coaxially arranged with the lower ring, located on the inner side of the outer ring, and fixedly connected with the outer ring through a second connecting rod.

[0010] The anchoring mechanism is a cylindrical structure with openings on both the upper and lower sides, and is located above the outer ring. The upper opening is large, and is used to allow the exposed end of the anchor rod or the anchor rod to extend in the process of the tensioning device pushing it upward. The lower opening is small, and is used for the anchor rod or the anchor rod to continue to extend downward, and pass through the lower ring into the fixing hole of the tensioning device to fix the anchor cable or the anchor rod, so that the tensioning device can tension the anchor rod or the anchor cable.

[0011] Among them, the anchoring mechanism is used when the staff pushes the tensioning equipment upward. There is no need to observe the specific position of the exposed end of the anchor rod or anchor cable. The exposed end of the anchor rod or anchor cable only needs to be extended into the anchoring mechanism to ensure that the tensioning equipment continues to be lifted upward, and the anchor rod or anchor cable can be accurately extended into the fixing hole of the tensioning equipment.

[0012] Furthermore, the anchoring mechanism includes two anchoring units, which are symmetrically arranged so that the axis of the inner ring is located on its symmetry plane. The two anchoring units are symmetrical to each other and cooperate to form the upper opening and lower opening of the anchoring mechanism. The lower ends of the two anchoring units are hinged to the inner ring.

[0013] Furthermore, the anchoring mechanism includes at least three anchoring units, and the multiple anchoring units are arranged in a circular array with the axis of the inner ring as the axis. The multiple anchoring units gather together and cooperate to form the upper opening and the lower opening of the anchoring mechanism, and the lower end of each anchoring unit is hinged to the inner ring.

[0014] Further, each anchoring unit comprises:

[0015] The arc-shaped sheet has an arc-shaped opening facing outwards.

[0016] The fixed sleeve is horizontally arranged and is a hollow cylindrical structure. It is arranged near the lower end of the arc-shaped sheet. Its outer wall is fixedly connected to the outer wall of the arc-shaped sheet, and a movable groove is opened around its outer wall.

[0017] The rotating rod is arranged horizontally and is sleeved in the fixed sleeve.

[0018] The force-bearing rod has its lower end hinged with the inner ring, and its upper end passes through the movable groove and is fixedly connected to the middle part of the rotating rod. When the arc-shaped piece is pushed downward by the anchor rod or anchor cable, the force-bearing rod rotates downward with the rotating rod as the axis, thereby allowing the adjacent arc-shaped pieces to clamp the anchor rod or anchor cable and guide the anchor rod or anchor cable.

[0019] Furthermore, it also includes an elastic member, one end of which is fixedly connected to the middle of the outer wall of the arc-shaped piece, and the other end of which is fixedly connected to the outer ring, for forcing the arc-shaped piece that has moved downward to the limit to reset upward.

[0020] Furthermore, the tensioning device is a tensioning cylinder.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention can quickly extend the anchor rod or anchor cable into the fixing hole of the tensioning oil cylinder, so as to avoid the situation that the fixing hole of the tensioning device and the anchor rod are not coaxial after the exposed end of the anchor rod or anchor cable has been extended into the fixing hole of the tensioning device for a certain distance, thereby causing the anchor rod or anchor cable to be stuck when being extended into the fixing hole. Therefore, the present invention improves production efficiency, reduces production time, and has low requirements on operators.

[0023] 2. The present invention is sleeved on the joint of the tensioning device, so that when the tensioning device is lifted upward, it is not necessary to pay too much attention to whether the axis of the anchor rod or anchor cable coincides with the axis of the joint fixing hole. It is only necessary to extend the exposed end of the anchor cable or anchor rod between the arc-shaped pieces, and then the arc-shaped piece can move downward with the anchor rod or anchor cable and guide the anchor cable or anchor rod, so that the anchor cable or anchor rod continues to move downward and passes through the lower ring into the fixing hole of the fixed anchor cable or anchor rod of the tensioning device, thereby allowing the tensioning device to tension the anchor rod or anchor cable;

[0024] 3. The anchoring units of the present invention may be two or more, as long as they can wrap and guide the anchor cable or anchor rod. After the operator extends the anchor cable or anchor rod into the cavity formed by the adjacent arc-shaped pieces, the anchoring unit clamps the anchor rod or anchor cable and moves downward, thereby continuously clamping and guiding the anchor rod or anchor cable.

[0025] 4. The present invention provides a rotating rod, a force-bearing rod and a fixing sleeve, so that the entire anchoring unit can move up and down with the hinge point between the anchoring unit and the inner ring as the center, thereby guiding the anchor cable or anchor rod;

[0026] 5. The present invention provides an elastic member so that the anchoring unit can be reset upward after moving downward to the limit and start working again. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the use status of the present invention.

[0029] Among them: 1. lower ring; 2. outer ring; 3. inner ring; 4. first connecting rod; 5. second connecting rod; 6. arc-shaped piece; 7. fixed sleeve; 8. rotating rod; 9. force-bearing rod; 10. elastic part; 11. anchor rod or anchor cable; 12. tensioning equipment. DETAILED DESCRIPTION

[0030] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. The "direction" in the present invention is based on the position of the present invention in a certain direction. Figure 1 Description of the trend in the state.

[0032] The present invention discloses a device for extending an anchor cable or an anchor rod into a tensioning device, such as Figure 1 and Figure 2 As shown, it includes a lower ring 1, an outer ring 2, an inner ring 3, and an anchoring mechanism.

[0033] The lower circular ring 1 is horizontally arranged, and the outer circular ring 2 is horizontally arranged and coaxially arranged with the lower circular ring 1 . The outer circular ring 2 is located on the upper side of the lower circular ring 1 and is fixedly connected with the lower circular ring 1 via a first connecting rod 4 .

[0034] The inner ring 3 is horizontal and coaxially arranged with the lower ring 1 . The inner ring 3 is located inside the outer ring 2 and is fixedly connected to the outer ring 2 via a second connecting rod 5 .

[0035] The anchoring mechanism is cylindrical with openings on both the upper and lower sides. The anchoring mechanism is located above the outer ring 2. The upper opening of the anchoring mechanism is large and is used to allow the exposed end of the anchor rod or the anchor rod to extend during the upward pushing of the tensioning device 12. The lower opening of the anchoring mechanism is small and is used for the anchor rod or the anchor rod to continue to extend downward and pass through the lower ring 1 into the fixing hole of the tensioning device 12 for fixing the anchor cable or the anchor rod, thereby allowing the tensioning device 12 to tension the anchor rod or the anchor cable 11.

[0036] The anchoring mechanism is used for workers to push the tensioning device 12 upwards. There is no need to observe the specific position of the exposed end of the anchor rod or anchor cable 11. The exposed end of the anchor rod or anchor cable 11 only needs to be inserted into the anchoring mechanism to ensure that the tensioning device 12 continues to be lifted upwards, and the anchor rod or anchor cable 11 can be accurately inserted into the fixing hole of the tensioning device 12. The tensioning device 12 is a tensioning oil cylinder.

[0037] In one embodiment, the anchoring mechanism includes two anchoring units, which are symmetrically arranged so that the axis of the inner ring 3 is located on its symmetry plane. The two anchoring units are symmetrical to each other and cooperate to form an upper opening and a lower opening of the anchoring mechanism. The lower ends of the two anchoring units are hinged to the inner ring 3.

[0038] In another embodiment, the anchoring mechanism includes at least three anchoring units, and the multiple anchoring units are arranged in a circular array with the axis of the inner ring 3 as the axis. The multiple anchoring units gather together and cooperate to form the upper opening and the lower opening of the anchoring mechanism, and the lower end of each anchoring unit is hinged to the inner ring 3.

[0039] In any embodiment, each anchoring unit includes: an arc-shaped piece 6, a fixing sleeve 7, a rotating rod 8, and a force-bearing rod 9.

[0040] The arc opening of the arc piece 6 is arranged outward, the fixing sleeve 7 is arranged horizontally, the fixing sleeve 7 is a hollow cylindrical structure, the fixing sleeve 7 is arranged close to the lower end of the arc piece 6, the outer wall of the fixing sleeve 7 is fixedly connected to the outer wall of the arc piece 6, and a movable groove is opened around the outer wall of the fixing sleeve 7.

[0041] The rotating rod 8 is horizontally arranged and sleeved in the fixed sleeve 7. The lower end of the force-bearing rod 9 is hinged to the inner ring 3, and the upper end of the force-bearing rod 9 passes through the movable groove and is fixedly connected to the middle part of the rotating rod 8. The force-bearing rod 9 is used to rotate downward with the rotating rod 8 as the axis when the arc-shaped piece 6 is pushed downward by the anchor rod or anchor cable 11, thereby allowing the adjacent arc-shaped piece 6 to clamp the anchor rod or anchor cable 11 and guide the anchor rod or anchor cable 11.

[0042] The present invention also includes an elastic member 10, one end of which is fixedly connected to the middle of the outer wall of the arc-shaped piece 6, and the other end of the elastic member 10 is fixedly connected to the outer ring 2. The elastic member 10 is used to force the arc-shaped piece 6 that has moved downward to the limit to reset upward.

[0043] Since the diameter of the anchor rod or anchor cable 11 is small and the fixing hole of the tensioning device 12 matches the diameter of the anchor rod or anchor cable 11, once the height of the tunnel is too high, the personnel cannot ensure that the fixing hole of the tensioning device 12 is coaxial with the anchor rod or anchor cable 11 while lifting the tensioning device 12. In this way, when the tensioning device 12 is lifted to the point where the exposed end of the anchor rod or anchor cable 11 extends into the fixing hole for a certain distance, it will get stuck. At this time, if the personnel are standing on the scaffolding and moving on the scaffolding, it will be very difficult for the personnel. If they are standing on a ladder, they need to go down first, move the chair, and try again, which greatly increases the tensioning time and reduces production efficiency.

[0044] The method of use of the present invention is:

[0045] After the upper end of the anchor cable or anchor rod 11 is anchored into the tunnel roof, when the anchor cable or anchor rod 11 needs to be tensioned, the lower ring 1 of the present invention is sleeved on the periphery of the joint of the tensioning device, so that the axis of the lower ring 1 is coaxial with the fixing hole of the joint of the tensioning device, and then the tensioning device is lifted upward toward the anchor cable or anchor rod 11. When the staff feels that the exposed end of the anchor cable or anchor rod 11 extends between the arc-shaped pieces 6, the tensioning device continues to be lifted upward according to the guidance of the arc-shaped pieces 6 to the anchor cable or anchor rod 11, and the tensioning device can be moved according to the stress conditions of each arc-shaped piece 6, so that the fixing hole of the tensioning device is coaxial with the anchor cable or anchor rod 11, and then the tensioning device continues to be lifted upward until the anchor cable or anchor rod 11 passes through the lower ring 1 and extends into the fixing hole of the tensioning device.

[0046] Example 1

[0047] In a certain mine, when the anchor cable or anchor rod 11 is inserted into the tensioning cylinder for use, at least two operators are required to cooperate and laboriously push the tensioning cylinder upward. Sometimes, when the tunnel height is too high, the operators need to set up scaffolding or stand on a ladder, and then push the tensioning cylinder upward to make the anchor cable or anchor rod extend into the fixing hole of the tensioning cylinder. During the process of pushing the tensioning cylinder upward, the anchor rod or anchor cable 11 cannot be quickly inserted into its fixing hole, resulting in difficulty in insertion. In addition, the operation is labor-intensive and time-consuming, affecting the operating efficiency.

[0048] The materials for making the present invention are shown in the following table:

[0049] Table 1 List of materials

[0050]

[0051] After using the insertion device made by the present invention, the economic value created each year is 30,000 to 50,000 yuan.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for extending an anchor cable or an anchor rod into a tensioning device, characterized in that: include: The lower ring (1) is set horizontally, The outer ring (2) is horizontally arranged coaxially with the lower ring (1), located on the upper side of the lower ring (1), and fixedly connected to the lower ring (1) via a first connecting rod (4). The inner ring (3) is horizontally arranged coaxially with the lower ring (1), located on the inner side of the outer ring (2), and fixedly connected to the outer ring (2) via a second connecting rod (5). The anchoring mechanism is a cylindrical structure with openings on both the upper and lower sides, and is located above the outer circular ring (2). The upper opening is large and is used to allow the exposed end of the anchor rod or the anchor rod to extend during the upward pushing process of the tensioning device (12). The lower opening is small and is used for the anchor rod or the anchor rod to continue to extend downward and pass through the lower circular ring (1) into the fixing hole of the tensioning device (12) for fixing the anchor cable or the anchor rod, thereby allowing the tensioning device (12) to tension the anchor rod or the anchor cable (11). The anchoring mechanism is used when workers push the tensioning device (12) upwards. There is no need to observe the specific position of the exposed end of the anchor rod or anchor cable (11). The exposed end of the anchor rod or anchor cable (11) only needs to be inserted into the anchoring mechanism to ensure that the tensioning device (12) continues to be lifted upwards, and the anchor rod or anchor cable (11) can be accurately inserted into the fixing hole of the tensioning device (12).

2. A device for extending an anchor cable or an anchor rod into a tensioning device according to claim 1, characterized in that: The anchoring mechanism comprises two anchoring units, which are symmetrically arranged so that the axis of the inner ring (3) is located on its symmetry plane. The two anchoring units are symmetrical to each other and cooperate to form an upper opening and a lower opening of the anchoring mechanism. The lower ends of the two anchoring units are hinged to the inner ring (3).

3. A device for extending an anchor cable or an anchor rod into a tensioning device according to claim 1, characterized in that: The anchoring mechanism comprises at least three anchoring units, wherein the plurality of anchoring units are arranged in a circular array with the axis of the inner ring (3) as the axis, and the plurality of anchoring units gather together and cooperate to form an upper opening and a lower opening of the anchoring mechanism, and the lower end of each anchoring unit is hinged to the inner ring (3).

4. A device for extending an anchor cable or an anchor rod into a tensioning device according to claim 2 or 3, characterized in that: Each of the anchoring units comprises: The arc-shaped sheet (6) has an arc-shaped opening facing outwards. The fixing sleeve (7) is horizontally arranged and is a hollow cylindrical structure. It is arranged near the lower end of the arc-shaped sheet (6). Its outer wall is fixedly connected to the outer wall of the arc-shaped sheet (6). A movable groove is provided around its outer wall. The rotating rod (8) is arranged horizontally and sleeved in the fixing sleeve (7). The force-bearing rod (9) has a lower end hinged to the inner ring (3) and an upper end passing through a movable groove and fixedly connected to the middle of the rotating rod (8). When the arc-shaped piece (6) is pushed downward by the anchor rod or anchor cable (11), the force-bearing rod (9) rotates downward with the rotating rod (8) as the axis, thereby allowing the adjacent arc-shaped piece (6) to clamp the anchor rod or anchor cable (11) and guide the anchor rod or anchor cable (11).

5. A device for extending an anchor cable or an anchor rod into a tensioning device according to claim 4, characterized in that: It also includes an elastic member (10), one end of which is fixedly connected to the middle of the outer wall of the arc-shaped piece (6), and the other end of which is fixedly connected to the outer ring (2), and is used to force the arc-shaped piece (6) that has moved downward to the limit to return to its original position upward.

6. A device for extending an anchor cable or an anchor rod into a tensioning device according to claim 1, characterized in that: The tensioning device (12) is a tensioning cylinder.

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