Anti-cracking device of pre-stressed anchor cable structure

Abstract

The utility model discloses a pre-stressed anchor cable structure anti-cracking device, which relates to the technical field of anchor cable safety protection, and comprises a bearing plate, the left and right ends of the bearing plate are both slidably connected with protective plates, the upper and lower ends of the bearing plate are both rotatably connected with fixing plates, and the left and right sides of one end of the rear end of each fixing plate far away from the bearing plate are both rotatably connected with fixing bolts. A contact frame is slidably connected to the outer surface of the fixing bolt at the top of the rear end of the fixing plate, an adjusting groove is formed in the position of the fixing bolt at the top of the contact frame, and a buffer pipe penetrates through the center of the front end of the bearing plate. The anchor cable protection device is reasonable in design structure, when the anchor cable is broken, the anchor cable drives the sleeve to move forwards under the action of tension, the sleeve drives the pushing plate to move, the pushing plate drives the contact plate to move through the connecting frame, the contact plate extrudes and limits the anchor cable at the rear end of the sleeve, and therefore the anchor cable is prevented from popping out, and the anchor cable protection device has the advantage of comprehensive protection.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable safety protection technology, specifically to a crack-resistant device for prestressed anchor cable structures. Background Technology

[0002] Anchor cables are prestressed steel strands that pass through the slope sliding surface, with one end fixed to the slope surface and the other end anchored in the stable rock mass within the sliding surface. They directly generate anti-sliding resistance on the sliding surface, increasing anti-sliding frictional resistance and keeping the structural surface in a compressed state. This improves the integrity of the slope rock mass, thereby fundamentally improving the mechanical properties of the rock mass, effectively controlling the displacement of the rock mass, and promoting its stability. This achieves the purpose of managing bedding planes, landslides, and dangerous rocks and boulders. When anchor cables are used for support under large deformation pressure, if their ultimate strength is exceeded, the anchor cables will break.

[0003] When an anchor cable breaks, if the outer portion of the cable is not adequately held by the surrounding rock mass, it can eject at extremely high speed under immense axial tension, potentially causing injury and posing a serious safety hazard. Existing anchor cable fixing mechanisms typically use anchor cable sleeves to limit the heads of several anchor cables, but this method cannot prevent the anchor cable from ejecting in all directions. Therefore, we have developed a crack-resistant device for prestressed anchor cable structures to address these issues. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a crack-resistant device for prestressed anchor cable structures.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a crack-resistant device for prestressed anchor cable structures, comprising a bearing plate, with protective plates slidably connected to both the left and right ends of the bearing plate, and fixed plates rotatably connected to both the upper and lower ends of the bearing plate. Fixed bolts are rotatably connected to both sides of the rear end of the fixed plate away from the bearing plate. A contact frame is slidably connected to the top of the rear end of the fixed plate at the outer surface of the fixed bolts. An adjustment groove is provided on the top of the contact frame at the position of the fixed bolts. A buffer tube is connected through the center of the front end of the bearing plate. Four buffer rods are arrayed inside the buffer tube. A pusher frame is fixedly connected between the rear ends of the buffer rods. Four sleeves are arrayed on the rear end of the pusher frame away from the buffer rods. A buffer spring is sleeved on the outer surface of the buffer rod between the pusher frame and the buffer tube. Four support frames are arrayed on the rear sidewall of the bearing plate. A connecting frame is rotatably connected inside the support frame. A contact plate is fixedly connected to the bottom rear end of the connecting frame. A pusher plate is fixedly connected to the bottom front end of the connecting frame in front of the sleeves.

[0008] Furthermore, the left and right ends of the bearing plate are provided with sliding grooves that engage with the inner wall of the protective plate, and the upper and lower ends of the bearing plate are provided with rotating rings that engage with the front end of the fixed plate.

[0009] Furthermore, the fixing plate has a fixing hole inside that engages with the outer wall of the fixing bolt, the contact frame is L-shaped, and the inner wall of the rear end of the contact frame has a groove.

[0010] Furthermore, a friction plate is provided on the top wall of the contact frame outside the adjustment groove, and the buffer rod and the front end of the buffer tube form a sliding connection.

[0011] Furthermore, the pusher frame is arranged in an "X" shape, the sleeves are arranged in a "+" shape, and the rear end of the sleeve has an insertion hole for engaging with the anchor cable.

[0012] Furthermore, the support frame is positioned near the inner wall of the buffer tube, and the rear end of the contact plate extends to the rear end of the sleeve.

[0013] Furthermore, the push plate is arranged vertically, and a notch is provided inside the push plate to engage with the push frame.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this prestressed anchor cable structure crack-resistant device has the following advantages:

[0016] I. When the anchor cable breaks during use, the anchor cable moves forward under tension, the sleeve moves, the sleeve moves the push plate, and the push plate moves the contact plate through the connecting frame. The contact plate squeezes and limits the anchor cable at the rear end of the sleeve, thereby preventing the anchor cable from popping out. This solves the problem that existing anchor cable fixing mechanisms generally limit the heads of several anchor cables by anchor cable sleeves, which makes it impossible to prevent the anchor cable from popping out in all directions. It has the advantage of comprehensive protection.

[0017] II. This utility model inserts the anchor cable head into the sleeve, and the bearing plate drives the fixing plate to be placed at the upper and lower ends of the external steel beam respectively. The contact frame engages with the rear end of the external steel beam, and the fixing bolts fix the contact frame and the fixing plate together. At the same time, the protective plate is inserted into the left and right ends of the bearing plate and welded to the external steel beam. It has the advantage of being easy to install. Attached Figure Description

[0018] Figure 1 This is a triaxial drawing of the present invention;

[0019] Figure 2 This is a schematic diagram of the protective plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the support frame of this utility model;

[0021] Figure 4This is a schematic diagram of the pusher frame of this utility model.

[0022] In the diagram: 1. Bearing plate; 2. Protective plate; 3. Fixing plate; 4. Fixing bolt; 5. Contact frame; 6. Adjustment groove; 7. Buffer tube; 8. Buffer rod; 9. Push frame; 10. Sleeve; 11. Buffer spring; 12. Support frame; 13. Connecting frame; 14. Contact plate; 15. Push plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4As shown, this utility model provides a technical solution: a crack-resistant device for prestressed anchor cable structures, including a bearing plate 1, with protective plates 2 slidably connected to both ends of the bearing plate 1. Sliding grooves that engage with the inner walls of the protective plates 2 are provided at both ends of the bearing plate 1. Fixed plates 3 are rotatably connected to both the upper and lower ends of the bearing plate 1. Rotating rings that engage with the front ends of the fixed plates 3 are provided at both ends of the bearing plate 1. Fixed bolts 4 are rotatably connected to both sides of the rear end of the fixed plates 3 away from the bearing plate 1. A contact frame 5 is slidably connected to the top of the rear end of the fixed plates 3 on the outer surface of the fixed bolts 4. A contact frame 5 that engages with the outer wall of the fixed bolts 4 is provided inside the fixed plates 3. The contact frame 5 is L-shaped with a fixing hole. A groove is formed on the inner wall of the rear end of the contact frame 5. An adjustment groove 6 is formed on the top of the contact frame 5 at the position of the fixing bolt 4. A friction plate is set on the top wall of the contact frame 5 outside the adjustment groove 6. A buffer tube 7 is connected through the center of the front end of the bearing plate 1. Four buffer rods 8 are arrayed inside the buffer tube 7, forming a sliding connection with the front end of the buffer tube 7. A push frame 9 is fixedly connected between the rear ends of the buffer rods 8. Four sleeves 10 are arrayed on the rear end of the push frame 9 away from the buffer rods 8. The push frame 9 is X-shaped, and the sleeves 10 are arranged in a cross shape. The sleeve 10 has a socket at its rear end for engaging with the anchor cable. The anchor cable head is inserted into the sleeve 10. The bearing plate 1 drives the fixing plate 3 to be positioned at the upper and lower ends of the external steel beam. The contact frame 5 engages with the rear end of the external steel beam. Fixing bolts 4 fix the contact frame 5 and the fixing plate 3 together. Simultaneously, the protective plate 2 is inserted at both ends of the bearing plate 1 and welded to the external steel beam. A buffer spring 11 is sleeved on the outer surface of the buffer rod 8 between the pusher frame 9 and the buffer tube 7. Four support frames 12 are arrayed on the rear side wall of the bearing plate 1. The support frames 12 are positioned near the inner wall of the buffer tube 7. The internal rotation of the support frames 12... A connecting frame 13 is dynamically connected, and a contact plate 14 is fixedly connected to the bottom rear end of the connecting frame 13. The rear end of the contact plate 14 extends to the rear end of the sleeve 10. A push plate 15 is fixedly connected to the bottom front end of the connecting frame 13 in front of the sleeve 10. The push plate 15 is set in a vertical position and has a notch inside that engages with the push frame 9. When the anchor cable breaks, the anchor cable moves the sleeve 10 forward under tension. The sleeve 10 moves the push plate 15, and the push plate 15 moves the contact plate 14 through the connecting frame 13. The contact plate 14 squeezes and limits the anchor cable at the rear end of the sleeve 10, thereby preventing the anchor cable from popping out.

[0025] Working principle: When using this prestressed anchor cable anti-crack device, the anchor cable head is inserted into the sleeve 10. The bearing plate 1 drives the fixing plate 3 to be placed at the upper and lower ends of the external steel beam respectively. The contact frame 5 engages with the rear end of the external steel beam. The fixing bolts 4 fix the contact frame 5 and the fixing plate 3 together. At the same time, the protective plate 2 is inserted at the left and right ends of the bearing plate 1 and welded to the external steel beam. When the anchor cable breaks, the anchor cable drives the sleeve 10 to move forward under the action of tension. The sleeve 10 drives the push plate 15 to move. The push plate 15 drives the contact plate 14 to move through the connecting frame 13. The contact plate 14 squeezes and limits the anchor cable at the rear end of the sleeve 10, thereby preventing the anchor cable from popping out.

Claims

1. A crack-resistant device for prestressed anchor cable structures, comprising a bearing plate (1), characterized in that: The bearing plate (1) is slidably connected to protective plates (2) at both ends. The bearing plate (1) is rotatably connected to fixed plates (3) at both ends. Fixed bolts (4) are rotatably connected to the left and right sides of the end of the fixed plate (3) away from the bearing plate (1). A contact frame (5) is slidably connected to the top of the rear end of the fixed plate (3) on the outer surface of the fixed bolt (4). An adjustment groove (6) is opened at the top of the contact frame (5) at the position of the fixed bolt (4). A buffer tube (7) is connected through the center of the front end of the bearing plate (1). Four buffer rods (8) are arrayed inside the buffer tube (7). A pusher frame (9) is fixedly connected between the rear ends of the punch rod (8). Four sleeves (10) are arrayed on the side of the pusher frame (9) away from the buffer rod (8). A buffer spring (11) is sleeved on the outer surface of the buffer rod (8) between the pusher frame (9) and the buffer tube (7). Four support frames (12) are arrayed on the rear side wall of the bearing plate (1). A connecting frame (13) is rotatably connected inside the support frame (12). A contact plate (14) is fixedly connected to the bottom of the rear end of the connecting frame (13). A pusher plate (15) is fixedly connected to the bottom of the front end of the connecting frame (13) in front of the sleeve (10).

2. The crack-resistant device for prestressed anchor cable structures according to claim 1, characterized in that: The bearing plate (1) has sliding grooves at its left and right ends that engage with the inner wall of the protective plate (2), and rotating rings at its upper and lower ends that engage with the front end of the fixing plate (3).

3. The crack-resistant device for prestressed anchor cable structures according to claim 1, characterized in that: The fixing plate (3) has a fixing hole inside that engages with the outer wall of the fixing bolt (4), and the contact frame (5) is arranged in an "L" shape with a groove on the inner wall of the rear end of the contact frame (5).

4. The crack-resistant device for prestressed anchor cable structures according to claim 1, characterized in that: The top wall of the contact frame (5) is provided with a friction plate outside the adjustment groove (6), and the buffer rod (8) and the front end of the buffer tube (7) are slidably connected.

5. The crack-resistant device for prestressed anchor cable structures according to claim 1, characterized in that: The pusher frame (9) is arranged in an "X" shape, and the sleeves (10) are arranged in a "+" shape. The rear end of the sleeve (10) is provided with an insertion hole for engaging with the anchor cable.

6. The crack-resistant device for prestressed anchor cable structures according to claim 1, characterized in that: The support frame (12) is located near the inner wall of the buffer tube (7), and the rear end of the contact plate (14) extends to the rear end of the sleeve (10).

7. The crack-resistant device for prestressed anchor cable structures according to claim 1, characterized in that: The push plate (15) is set in a vertical position, and the inside of the push plate (15) has a notch that engages with the push frame (9).

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