Gravel layer assembled surface layer support anchor head structure with buffer shock absorbing sleeve

Abstract

The utility model discloses a kind of pebble layer assembly type surface layer support anchor head structure with buffer shock-absorbing sleeve, including support anchor head, the outer wall of support anchor head is equipped with guiding component, two groups of buffer components are symmetrically installed in the inside of support anchor head, buffer component includes the sleeve of the outer wall of being centrally arranged in support anchor head, two groups of oil tank are fixed with the outer wall of both ends of sleeve symmetrically, two groups of third fixed blocks are symmetrically fixed in the both ends of sleeve of support anchor head, the opposite side of two groups of third fixed blocks is fixedly connected with spring, the end of spring away from third fixed block is fixedly connected with second sliding block, the opposite side of second sliding block is equipped with displacement component for realizing the buffering of support anchor head, the utility model can realize the damage to anchor head caused by preventing local stress too large.

Description

Technical Field

[0001] This utility model relates to the field of anchor support technology, specifically a pebble layer assembled surface support anchor structure with a buffer and shock-absorbing sleeve. Background Technology

[0002] The prefabricated surface support anchor head structure with buffer and shock-absorbing sleeve is a geotechnical engineering support structure used in pebble layer geological conditions. By setting up components such as buffer and shock-absorbing sleeve, it improves the anchoring performance of the anchor head and the buffering capacity against impact loads, ensuring the stability and safety of the support structure.

[0003] When existing support anchors are used in pebble layer environments, due to their rigid contact with the pebble layer and the surrounding concrete support structure, they are prone to local stress concentration caused by concrete shrinkage and pebble compression. If the stress cannot be relieved, it will lead to cracking of the support anchor or failure of the surrounding support structure, and may also cause damage to the local or surrounding support structure. Therefore, we propose a prefabricated surface support anchor structure for pebble layers with a buffer and shock-absorbing sleeve. Utility Model Content

[0004] The purpose of this invention is to provide a prefabricated surface support anchor head structure with a buffer and shock-absorbing sleeve for pebble layer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pebble layer assembled surface support anchor head structure with a buffer and shock-absorbing sleeve, including a support anchor head, a guide component installed on the outer wall of the support anchor head, and two sets of buffer components symmetrically installed inside the support anchor head;

[0006] The buffer assembly includes a sleeve fitted onto the outer wall of the support anchor head at its center. Two sets of oil tanks are symmetrically fixed to the outer walls of both ends of the sleeve. Two sets of third fixing blocks are symmetrically fixed to the support anchor head at both ends of the sleeve. A spring is fixedly connected to the opposite side of the two sets of third fixing blocks. A second slider is fixedly connected to the end of the spring away from the third fixing block. A displacement assembly for buffering the support anchor head is installed on the opposite side of the second slider.

[0007] Furthermore, the displacement component includes a second fixing block fixed at the center of the sleeve, two sets of compression rods are symmetrically fixedly connected to the left and right ends of the second fixing block, and a first slider is fixedly connected to the output end of the compression rod. The outer wall of the first slider is provided with four sets of through holes at equal intervals.

[0008] Furthermore, four sets of piston blocks are fixed at equal intervals near the first slider of the second slider, and the piston blocks are adapted to the through holes.

[0009] Furthermore, the first slider is slidably disposed on the inner wall of the sleeve, the second slider is slidably disposed on the inner wall of the sleeve, and several sets of sensors are symmetrically fixed on the left and right sides of the second fixing block, the sensors being equidistantly distributed around the compression rod.

[0010] Furthermore, four sets of oil holes are equidistantly opened on the outer wall of the sleeve, and the oil inlet inside the oil tank is adapted to the oil holes.

[0011] Furthermore, the guide assembly includes a central fixing block fixed at the center of the sleeve, two sets of guide sleeves are symmetrically fixed at the left and right ends of the central fixing block, two sets of first fixing blocks are symmetrically fixed at both ends of the support anchor head, several sets of guide rods are fixedly connected on the opposite side of the first fixing blocks, and several sets of guide holes are equidistantly opened near the guide rods of the guide sleeves, and the guide holes are adapted to the guide rods.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the guide component and the buffer component, when the anchor head is under force, the third fixing block drives the spring to compress or stretch, and the elastic reaction force first absorbs the initial stress; at the same time, the piston block of the second slider is inserted into the through hole of the first slider, which hinders the flow of oil in the sleeve. The oil slowly enters and exits the oil tank through the oil hole to form a damping force, gradually releasing the remaining stress and preventing stress overload damage. Through the above design, it is possible to prevent excessive local stress from damaging the anchor head. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the guide component structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the buffer component structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the first partial structure of the buffer component of this utility model;

[0017] Figure 5 This is a schematic diagram of the second partial structure of the buffer component of this utility model.

[0018] In the diagram: 1. Support anchor head; 2. Guide assembly; 3. Buffer assembly; 4. Guide sleeve; 5. Central fixing block; 6. Guide hole; 7. Guide rod; 8. First fixing block; 9. Oil tank; 10. Second fixing block; 11. Oil hole; 12. Sleeve; 13. Sensor; 14. Compression rod; 15. Spring; 16. Third fixing block; 17. First slider; 18. Through hole; 19. Second slider; 20. Piston block. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-5 A prefabricated pebble layer support anchor head structure with a buffer and shock-absorbing sleeve includes a support anchor head 1. A guide assembly 2 is installed on the outer wall of the support anchor head 1. Two sets of buffer assemblies 3 are symmetrically installed inside the support anchor head 1. Each buffer assembly 3 includes a sleeve 12 fitted onto the outer wall of the support anchor head 1 at its center. Two sets of oil tanks 9 are symmetrically fixed to the outer walls of both ends of the sleeve 12. Two sets of third fixing blocks 16 are symmetrically fixed to the support anchor head 1 at both ends of the sleeve 12. Springs 15 are fixedly connected to the facing sides of the two sets of third fixing blocks 16. A second slider 19 is fixedly connected to the end of the spring 15 away from the third fixing block 16. A displacement assembly for buffering the support anchor head 1 is installed on the facing side of the second slider 19. The displacement assembly includes a second fixing block 10 fixed at the center of the sleeve 12. Two sets of compression rods 14 are symmetrically fixed to the left and right ends of the second fixing block 10. A first slider 17 is fixedly connected to the output end of the compression rod 14. Four sets of through holes 18 are equidistantly opened on the outer wall. Four sets of piston blocks 20 are equidistantly fixed near the first slider 17 of the second slider 19. The piston blocks 20 are adapted to the through holes 18. The first slider 17 is slidably set on the inner wall of the sleeve 12. The second slider 19 is slidably set on the inner wall of the sleeve 12. Several sets of sensors 13 are symmetrically fixed on the left and right sides of the second fixing block 10. The sensors 13 are equidistantly distributed around the compression rod 14. Four sets of oil holes 11 are equidistantly opened on the outer wall of the sleeve 12. The oil inlet inside the oil tank 9 is adapted to the oil holes 11. The guide assembly 2 includes a central fixing block 5 fixed in the middle of the sleeve 12. Two sets of guide sleeves 4 are symmetrically fixed on the left and right ends of the central fixing block 5. Two sets of first fixing blocks 8 are symmetrically fixed to the two ends of the support anchor head 1. Several sets of guide rods 7 are fixedly connected to the opposite side of the first fixing blocks 8. Several sets of guide holes 6 are equidistantly opened near the guide rods 7 of the guide sleeves 4. The guide holes 6 are adapted to the guide rods 7.

[0021] Specifically, when stress is applied to the support anchor head 1, the support anchor head 1 will tend to "deviate". At this time, the guide component 2 will immediately play its role. First, look at the parts connection: the first fixing block 8 is firmly fixed to both ends of the support anchor head 1. One end of the guide rod 7 is connected to the first fixing block 8, and the other end is aligned with the guide hole 6 on the guide sleeve 4. The guide rod and the guide hole are "matched" and can be inserted and slid. The guide sleeve 4 is fixed to the central fixing block 5, and the central fixing block 5 is welded to the center of the sleeve 12. It is equivalent to the guide component 2 "holding" the support anchor head 1 through the sleeve 12.

[0022] Specifically, when the support anchor head 1 tries to tilt, it will move the first fixing block 8 and the guide rod 7 together. However, the guide rod 7 can only slide in a straight line along the guide hole 6 and cannot sway left or right. This restricts the movement direction of the support anchor head 1 to a straight line, laying the foundation for the precise buffering of the subsequent buffer assembly 3. If it tilts, the buffer parts will not touch each other.

[0023] The third fixing block 16 is fixed to the support anchor head 1 and is located on the left and right sides of both ends of the sleeve 12. One end of the spring 15 is connected to the third fixing block 16, and the other end is connected to the second slider 19. The second slider 19 can slide freely on the inner wall of the sleeve 12. When the support anchor head 1 is subjected to an inward stress, it will move the third fixing block 16 towards the middle of the sleeve 12, at which time the third fixing block 16 will compress the spring 15. If it is subjected to an outward stress, the third fixing block 16 will move towards both ends of the sleeve 12, at which time it will stretch the spring 15. The spring 15 itself has elasticity and is... When compressed or stretched, a "reaction force" is generated. This reaction force can first "offset part of the stress," just like a car's shock absorber spring first absorbs the bumps, initially reducing the rigid impact of the support anchor head 1. The second fixed block 10 is a "fixed point" fixed in the middle of the sleeve 12. A set of compression rods 14 is installed at each of its left and right ends. The "telescopic ends" of the compression rods 14 are connected to the first slider 17. The first slider can also slide on the inner wall of the sleeve 12. Four sets of through holes 18 are opened on the first slider 17, and the side of the second slider 19 close to the first slider 17 is fixed with four sets of piston blocks 20. The piston blocks and the through holes are " The sleeve 12 is designed to fit perfectly into the hole. Four sets of oil holes 11 are opened on the outer wall of the sleeve 12. The oil tank 9, fixed to the outer wall at both ends of the sleeve 12, has an oil inlet that is connected to the oil holes 11. This means that oil in the oil tank 9 can flow into the sleeve 12 through the oil holes 11, and oil in the sleeve 12 can also flow back into the oil tank 9. When the second slider 19 approaches the first slider 17, the piston block 20 on the second slider 19 slowly inserts into the through hole 18 of the first slider 17. At this time, stress will push the compression rod 14 to extend and retract. When the piston block 20 slides in the through hole 18, it will "block" the oil in the sleeve 12. The flow, for example, when the piston block pushes forward, it will "squeeze" the oil in the sleeve 12 toward the oil hole 11. The oil can only slowly flow back to the oil tank 9 through the oil hole 11. Conversely, if the piston block pulls backward, the oil in the oil tank 9 can only slowly flow into the sleeve 12 through the oil hole 11. This force of "obstructing the flow of oil" will act like a "brake" to slowly dissipate the remaining stress, preventing the support anchor head 1 from being stressed all at once, but rather "slowly unloading" the stress, completely avoiding local stress concentration. The sensor 13 is fixed on the left and right sides of the second fixing block 10 and is equidistantly distributed around the compression rod 14, enabling accurate detection.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prefabricated surface support anchor head structure with a buffer and shock-absorbing sleeve for a pebble layer, comprising a support anchor head (1), characterized in that: The outer wall of the support anchor head (1) is equipped with a guide component (2), and two sets of buffer components (3) are symmetrically installed inside the support anchor head (1). The buffer assembly (3) includes a sleeve (12) fitted on the outer wall of the support anchor head (1) at the center. Two sets of oil tanks (9) are symmetrically fixed on the outer walls of both ends of the sleeve (12). Two sets of third fixing blocks (16) are symmetrically fixed at both ends of the support anchor head (1) located on the sleeve (12). A spring (15) is fixedly connected to the opposite side of the two sets of third fixing blocks (16). A second slider (19) is fixedly connected to the end of the spring (15) away from the third fixing block (16). A displacement assembly for buffering the support anchor head (1) is installed on the opposite side of the second slider (19).

2. The prefabricated surface support anchor head structure with buffer and shock-absorbing sleeve for pebble layer according to claim 1, characterized in that: The displacement component includes a second fixing block (10) fixed at the center of the sleeve (12). Two sets of compression rods (14) are symmetrically fixed at the left and right ends of the second fixing block (10). A first slider (17) is fixedly connected to the output end of the compression rod (14). Four sets of through holes (18) are equidistantly opened on the outer wall of the first slider (17).

3. The prefabricated surface support anchor head structure with buffer and shock-absorbing sleeve for pebble layer according to claim 2, characterized in that: The second slider (19) has four sets of piston blocks (20) fixed at equal intervals near the first slider (17), and the piston blocks (20) are adapted to the through hole (18).

4. The prefabricated surface support anchor head structure with buffer and shock-absorbing sleeve for pebble layer according to claim 3, characterized in that: The first slider (17) is slidably disposed on the inner wall of the sleeve (12), the second slider (19) is slidably disposed on the inner wall of the sleeve (12), and several sets of sensors (13) are symmetrically fixed on the left and right sides of the second fixing block (10), and the sensors (13) are evenly distributed around the compression rod (14).

5. The prefabricated surface support anchor head structure with buffer and shock-absorbing sleeve for pebble layer according to claim 1, characterized in that: The outer wall of the sleeve (12) is provided with four sets of oil holes (11) at equal intervals, and the oil inlet inside the oil tank (9) is adapted to the oil holes (11).

6. The prefabricated surface support anchor head structure with buffer and shock-absorbing sleeve for pebble layer according to claim 1, characterized in that: The guide assembly (2) includes a central fixing block (5) fixed in the center of the sleeve (12). Two sets of guide sleeves (4) are symmetrically fixed at the left and right ends of the central fixing block (5). Two sets of first fixing blocks (8) are symmetrically fixed at both ends of the support anchor head (1). Several sets of guide rods (7) are fixedly connected to the opposite side of the first fixing blocks (8). Several sets of guide holes (6) are equidistantly opened near the guide rods (7) of the guide sleeves (4). The guide holes (6) are adapted to the guide rods (7).

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