Anchor cable fixing device

Abstract

According to the anchor cable fixing device, the anchor cable is not prone to sliding, and the anchor cable can be fixed more stably. An anchor cable fixing device comprises a supporting cylinder, a sliding sleeve and a locking screw rod, and the sliding sleeve is arranged on the supporting cylinder in a sleeving mode and connected with the supporting cylinder in a sliding mode in the axis direction of the supporting cylinder; at least two clamping plates are arranged in the supporting cylinder in the circumferential direction of the supporting cylinder, at least two sliding rods which are in one-to-one correspondence with the clamping plates and used for pushing the clamping plates to clamp and loosen an anchor cable are arranged on the supporting cylinder, and the sliding rods are slidably inserted into the supporting cylinder in the radial direction of the supporting cylinder. The inner ends of the sliding rods are connected with the corresponding clamping plates, and the outer ends of the sliding rods are connected with the sliding sleeves through connecting rods with one ends hinged to the sliding rods and the other ends hinged to the sliding sleeves. The locking screw is arranged in the radial direction of the supporting cylinder and is in threaded connection with the supporting cylinder through threads of the locking screw, and the inner end of the locking screw is connected with one clamping plate. According to the utility model, the safety risk of anchor cable engineering is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor cable installation, and specifically relates to an anchor cable fixing device. Background Art

[0002] An anchor cable is a tool for anchoring, and is widely used in the support operation of mountains or slopes during engineering construction. When constructing an anchor cable, one end is usually anchored in a stable rock mass with stable mechanical properties inside the rock mass, and the other end is fixed on the outer surface of the rock mass through an anchor cable fixing device, so as to stably fix the anchor cable in the rock mass and improve the stability of the rock mass.

[0003] The traditional anchor cable fixing device is generally a wedge-shaped anchor, and in the actual use process, the anchor cable often loosens due to sliding, which has great potential safety hazards. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an anchor cable fixing device in which the anchor cable is not easy to slide and the fixing of the anchor cable is more stable.

[0005] The technical solution adopted by the utility model to solve its technical problem is: an anchor cable fixing device, including a support cylinder, a sliding sleeve and a locking screw. The inner cavity of the support cylinder forms an anchor cable passing channel. The sliding sleeve is sleeved on the support cylinder and is slidably connected with the support cylinder along the axial direction of the support cylinder;

[0006] At least two clamping plates that cooperate with each other to clamp the anchor cable are arranged in the support cylinder along the circumferential direction of the support cylinder. At least two sliding rods that are in one-to-one correspondence with the clamping plates are arranged on the support cylinder and are used to push the clamping plates to clamp and loosen the anchor cable. The sliding rods are slidably inserted into the support cylinder along the radial direction of the support cylinder. The inner ends of the sliding rods are connected to the corresponding clamping plates, and the outer ends are respectively connected to the sliding sleeve through connecting rods that are hinged at one end and hinged to the sliding sleeve at the other end. When the sliding sleeve slides along the axial direction of the support cylinder, the sliding sleeve can push the corresponding sliding rods to slide along the radial direction of the support cylinder through the connecting rods;

[0007] The locking screw is arranged along the radial direction of the support cylinder and is threadedly connected with the support cylinder through its thread. The inner end of the locking screw is in contact with one of the clamping plates.

[0008] Further, the inner end of the locking screw is rotatably connected to one of the clamping plates.

[0009] Further, the clamping plate is arc-shaped or V-shaped.

[0010] Further, an anti-loosening structure is arranged on the locking screw.

[0011] Furthermore, the anti-loosening structure is an anti-loosening nut sleeved on the locking screw rod and in threaded fit with it.

[0012] Furthermore, a plurality of support screw rods are arranged at one end of the support cylinder along its circumferential direction. The support screw rods are arranged along the axis of the support cylinder and are threadedly connected to the support cylinder through their threads.

[0013] The beneficial effects of the present utility model are as follows: For the anchor cable fixing device of the present utility model, the clamping plate is gradually closed by the locking screw rod to clamp the anchor cable. Due to the action of the locking screw rod 3, the clamping plate 4 can be prevented from retreating backward, and the clamping plate 4 can always maintain a clamped state. Therefore, the anchor rod is not likely to slide and become loose, the fixation of the anchor rod is more stable, and the safety risk of the anchor cable project is reduced. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a top view of the present utility model;

[0016] Figure 3 is a half-sectional view of the present utility model;

[0017] As shown in the figure: support cylinder 1, sliding sleeve 2, locking screw rod 3, clamping plate 4, sliding rod 5, connecting rod 6, anchor cable 7, support screw rod 8, anchor cable passing through channel 11, anti-loosening nut 31. Detailed Embodiments

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] As Figure 1 、 Figure 2As shown in the figure, a cable anchor fixing device of the present utility model includes a support cylinder 1, a sliding sleeve 2 and a locking screw 3. An inner cavity of the support cylinder 1 forms a cable anchor passing channel 11. The sliding sleeve 2 is sleeved on the support cylinder 1 and is slidably connected with the support cylinder 1 along the axial direction of the support cylinder 1. At least two clamping plates 4 that cooperate with each other to clamp the cable anchor are arranged in the support cylinder 1 along the circumferential direction of the support cylinder 1. At least two sliding rods 5 that correspond to the clamping plates 4 one by one and are used to push the clamping plates 4 to clamp and loosen the cable anchor are arranged on the support cylinder 1. The sliding rods 5 are slidably inserted into the support cylinder 1 along the radial direction of the support cylinder 1. The inner ends (the ends facing the center of the support cylinder) of the sliding rods 5 are connected to the corresponding clamping plates 4, and the outer ends (the ends facing the outside of the support cylinder) are respectively connected to the sliding sleeve 2 through connecting rods 6 with one end hinged to the sliding sleeve 2 and the other end hinged to the sliding rods 5. When the sliding sleeve 2 slides along the axial direction of the support cylinder 1, the sliding sleeve 2 can push the corresponding sliding rods 5 to slide along the radial direction of the support cylinder 1 through the connecting rods 6. The locking screw 3 is arranged along the radial direction of the support cylinder 1 and is threadedly connected to the support cylinder 1 through its thread. The inner end of the locking screw 3 is in contact with one of the clamping plates 4 to push the clamping plate to slide inwards (towards the center) along the radial direction of the support cylinder 1.

[0020] As Figure 2 As shown in the figure, when the cable anchor fixing device of the present utility model fixes the cable anchor, one end of the support cylinder 1 is supported on the rock mass. The end of the cable anchor 7 passes through the inner cavity of the support cylinder 1, that is, through the cable anchor passing channel 11. Then, the locking screw 3 is screwed (tightened) to make the locking screw 3 move inwards along the radial direction of the support cylinder 1. During the movement of the locking screw 3, while pushing the clamping plate 4 in contact with it, the other clamping plates 4 also move synchronously towards the center of the support cylinder 1 along the radial direction of the support cylinder 1, so that the clamping plates gradually close to clamp the cable anchor 7. Due to the action of the locking screw 3, the clamping plate 4 can be prevented from moving backwards, and the clamping plate 4 can always maintain a clamped state. Therefore, the cable anchor is not likely to slide and become loose, and the fixation of the cable anchor is more stable. The specific clamping process is as follows: during the movement of the locking screw 3, it pushes the clamping plate 4 in contact with it to move towards the center of the support cylinder 1 along the radial direction of the support cylinder 1. When the clamping plate 4 moves, it drives the sliding rod 5 connected to it to slide. The sliding rod 5 then makes the sliding sleeve 2 slide along the axial direction of the support cylinder 1 through the connecting rod 6 connected to it. The sliding sleeve 2 then drives the other sliding rods 5 and the clamping plates 4 to move towards the center of the support cylinder 1 along the radial direction of the support cylinder 1 through the other connecting rods 6, so that the clamping plates 4 gradually close to clamp the cable anchor 7.

[0021] In order to better clamp the cable anchor, the clamping plate 4 is preferably an arc-shaped plate or a V-shaped plate.

[0022] Specifically, the inner end of the locking screw 3 can be in contact with the clamping plate 4 or can be rotatably connected to the clamping plate 4 (see Figure 3) Preferably, in the present utility model, the inner end of the locking screw rod 3 is rotatably connected to one of the clamping plates 4. When the inner end of the locking screw rod 3 is rotatably connected to one of the clamping plates 4, when the locking screw rod 3 is screwed to move outward in the radial direction of the support cylinder 1, each clamping plate 4 can be synchronously moved outward in the radial direction of the support cylinder 1, so that the clamping plate can loosen the anchor cable 7 and maintain the loosened state, which is convenient for taking out the anchor rod from the fixing device and also convenient for fixing the anchor rod next time.

[0023] In order to prevent the locking screw rod 3 from loosening under external force during use, a loosening prevention structure can be provided on the locking screw rod 3. For example: the locking screw rod 3 is a screw rod with self-locking threads. In the present utility model, a loosening prevention nut 31 that is threadedly engaged with the locking screw rod 3 is sleeved on the locking screw rod 3. That is, the loosening prevention structure is the loosening prevention nut 31 that is sleeved on the locking screw rod 3 and is threadedly engaged with it. After the locking screw rod is screwed in place, then screw the loosening prevention nut 31 to make the loosening prevention nut press against the locking screw rod, and the loosening of the locking screw rod can be prevented through the loosening prevention nut 31. In order to facilitate screwing the support cylinder 1, the loosening prevention nut 31 is generally arranged on the outside of the support cylinder 1. In some embodiments, the loosening prevention structure is a pull rope with one end connected to the support cylinder 1 and the other end connected to the locking screw rod 3 to pull the locking screw rod in the tightening direction.

[0024] Generally speaking, the more the number of the clamping plates 4, the better the effect of clamping and fixing the anchor cable. In the embodiment of the present utility model, 4 clamping plates 4 that cooperate with each other to clamp the anchor cable are arranged along the circumferential direction of the support cylinder 1 inside the support cylinder 1, and the clamping plates 4 are evenly arranged along the circumferential direction of the support cylinder 1.

[0025] Usually, the axial direction of the cavity formed after the clamping plates 4 cooperate is along the axial direction of the support cylinder 1. Due to the influence of the flatness of the rock mass, it is difficult to ensure that the axial direction of the support cylinder 1 supported on the rock mass surface is consistent with the extension direction of the anchor cable. Thus, there may be a situation where the extension direction of the anchor cable is inconsistent with the axial direction of the cavity formed after the cooperation of the plates 4. If the extension direction of the anchor cable is inconsistent with the axial direction of the cavity formed after the cooperation of the plates 4, it will cause the clamping plates 4 not to fit well with the surface of the anchor cable when clamping the anchor cable, that is, the contact area between the clamping plates 4 and the anchor cable is small, which will affect the effect of the clamping plates 4 fixing the anchor cable. For this reason, a plurality of support screw rods 8 are arranged along the circumferential direction at one end of the support cylinder 1, and the support screw rods 8 are arranged along the axial direction of the support cylinder 1 and are threadedly connected to the support cylinder 1 through their threads. In this way, the positions of the support screw rods 8 can be adjusted according to the situation of the rock mass surface, so that the axial direction of the support cylinder 1 is consistent with the extension direction of the anchor cable, thereby ensuring that the extension direction of the anchor cable is consistent with the axial direction of the cavity formed after the cooperation of the plates 4, the clamping plates 4 can better fit on the anchor cable 7, and the contact area between the clamping plates 4 and the anchor cable is larger when the clamping plates 4 clamp the anchor cable, so it is beneficial to the fixation of the anchor cable.

Claims

1. An anchor cable fixing device, characterized in that: It comprises a support tube (1), a sliding sleeve (2) and a locking screw (3); the inner cavity of the support tube (1) forms an anchor cable passing channel (11); the sliding sleeve (2) is sleeved on the support tube (1) and is slidably connected to the support tube (1) along the axial direction of the support tube (1); At least two clamps (4) are provided in the support tube (1) along the circumferential direction of the support tube (1) and cooperate with each other to clamp the anchor cable. At least two sliding rods (5) are provided on the support tube (1) and correspond to the clamps (4) one by one to push the clamps (4) to clamp and release the anchor cable. The sliding rod (5) is inserted on the support tube (1) along the radial sliding direction of the support tube (1). The inner end of the sliding rod (5) is connected to the corresponding clamp (4), and the outer end is connected to the sliding sleeve (2) through a connecting rod (6) which is hinged to the sliding sleeve (2) at one end and hinged to the sliding sleeve (2) at the other end. When the sliding sleeve (2) slides along the axial direction of the support tube (1), the sliding sleeve (2) can push the corresponding sliding rod (5) to slide along the radial direction of the support tube (1) through the connecting rod (6); The locking screw (3) is arranged along the radial direction of the support tube (1) and is threadedly connected to the support tube (1) through its thread. The inner end of the locking screw (3) is connected to one of the clamping plates (4).

2. An anchor cable fixing device according to claim 1, characterized in that: The inner end of the locking screw (3) is rotatably connected to one of the clamping plates (4).

3. An anchor cable fixing device according to claim 1, characterized in that: The clamping plate (4) is arc-shaped or V-shaped.

4. An anchor cable fixing device according to claim 1, characterized in that: The locking screw (3) is provided with an anti-loosening structure.

5. An anchor cable fixing device according to claim 4, characterized in that: The anti-loosening structure is an anti-loosening nut (31) which is sleeved on the locking screw (3) and matched with the thread thereof.

6. An anchor cable fixing device according to any one of claims 1 to 5, characterized in that: A plurality of support screws (8) are arranged along the circumference of one end of the support tube (1); the support screws (8) are arranged along the axis of the support tube (1) and are threadedly connected to the support tube (1) through their threads.

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