Surrounding rock supporting structure

Abstract

The utility model belongs to the field of surrounding rock supporting, and particularly relates to a surrounding rock supporting structure which comprises a pair of supporting seats. The middle part of the supporting seat is fixedly connected with a hydraulic cylinder; the output end of the hydraulic cylinder is fixedly connected with a sliding block; the sliding block is in sliding connection with the supporting seat; the top of the sliding block is fixedly connected with a motor. The output end of the motor is fixedly connected with a screw rod; the middle part of the screw rod is in threaded connection with a sleeve; the top of one sleeve is fixedly connected with a first protective plate; the top of the other sleeve is fixedly connected with a second protective plate; a sliding plate is fixedly connected to the middle of the first protection plate. A sliding groove is formed in the middle of the second protection plate. The sliding plate and the sliding groove are in sliding connection. The distance and the height between the first protection plate and the second protection plate can be adjusted by starting the hydraulic cylinder and the motor, surrounding rocks with different sizes can be supported by the device, the convenience of the device for supporting the surrounding rocks with different sizes is improved, and meanwhile, due to the fact that the first protection plate, the second protection plate and the sliding plate are all of rigid structures, the stability of the device for supporting the surrounding rocks is improved.

Description

Technical Field

[0001] The utility model relates to the field of surrounding rock support, in particular to a surrounding rock support structure. Background Technique

[0002] In rock underground engineering, the surrounding rock mass whose stress state changes due to excavation is called surrounding rock; the surrounding rock is also called host rock and ore-bearing rock, which is the rock surrounding the chamber. This chamber can be artificially excavated or naturally formed.

[0003] The stability of the surrounding rock is an important index of the geological environment in which the tunnel project is located; the stability degree of the strata after being excavated into a tunnel is called the stability of the tunnel surrounding rock. During construction, the characteristics of the rock surrounding rock are complex structure, uneven strength, and easy to lose stability. Therefore, appropriate support measures need to be selected.

[0004] The existing surrounding rock support structures are usually assembled with bolts. During use and observation, it is found that because the sizes of the chambers in the surrounding rock are different, the surrounding rock support structure needs to be adjusted many times, which requires repeated installation and removal of the bolts, consuming a large amount of working time.

[0005] Therefore, a surrounding rock support structure is proposed for the above problems. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background technique.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: A surrounding rock support structure of the utility model includes a pair of support seats; a hydraulic cylinder is fixedly connected to the middle of the support seats; a slider is fixedly connected to the output end of the hydraulic cylinder; the slider and the support seats are slidably connected; a motor is fixedly connected to the top of the slider; a screw rod is fixedly connected to the output end of the motor; a sleeve is threadedly connected to the middle of the screw rod; a first protection plate is fixedly connected to the top of one of the sleeves; a second protection plate is fixedly connected to the top of the other sleeve; a sliding plate is fixedly connected to the middle of the first protection plate; a sliding groove is opened in the middle of the second protection plate; the sliding plate and the sliding groove are slidably connected; by starting the hydraulic cylinder and the motor, the distance and height between the first protection plate and the second protection plate can be adjusted, so that the device can support surrounding rocks of different sizes, improving the convenience of the device for supporting different sizes, and at the same time, because the first protection plate, the second protection plate, and the sliding plate are all rigid structures, the stability of the device when supporting the surrounding rock is improved.

[0008] Preferably, positioning blocks are symmetrically and fixedly connected to the middle of the second guard plate; the surface of the positioning block is a micro-V-shaped structure; positioning grooves are symmetrically formed in the middle of the first guard plate; the positioning grooves and the positioning blocks are arranged correspondingly; through the cooperation of the positioning blocks and the positioning grooves, the first guard plate and the second guard plate can be stably butted after the positioning blocks enter the positioning grooves, improving the tightness when the first guard plate and the second guard plate are connected and reducing the situation of external impurities entering the positioning grooves and the sliding grooves.

[0009] Preferably, a plurality of cleaning rods are fixedly connected to the middle of the positioning block; the cleaning rods are located between the positioning block and the sliding plate; the sliding distance of the sliding plate is adjusted by a hydraulic cylinder. When the sliding plate moves, it will contact the cleaning rods on the surface of the positioning block, and the cleaning rods will clean impurities such as soil and gravel attached to the surface of the sliding plate, improving the smoothness of the surface of the sliding plate and reducing the jamming when the sliding plate slides along the sliding groove.

[0010] Preferably, a baffle is fixedly connected to the top of the slider; a connecting rod is fixedly connected to the middle of the baffle; the connecting rod is slidably connected to the sleeve; the baffle will protect the combined structure of the motor, the screw rod, the sleeve, etc., reducing the damage caused by external flying gravel and soil, and at the same time, when the motor is started to adjust the screw rod, the connecting rod will also play a guiding role for the sleeve, improving the stability when the sleeve moves.

[0011] Preferably, an elastic cloth is fixedly connected to the top of the baffle; the adjacent elastic cloth is fixedly connected to the second guard plate and the first guard plate; when the height of the second guard plate is adjusted too high, the elastic cloth will be stretched as the second guard plate is lifted. At this time, the elastic cloth will block the gap between the baffle and the second guard plate, reducing the damage to components such as the motor by external impurities passing through here.

[0012] Preferably, a plurality of damping springs are fixedly connected to the bottom of the support seat; universal wheels are installed at the bottom of the damping springs; when the device needs to be moved, it can be moved by sliding the universal wheels. When the support structure is in place, the universal wheels can be in a self-locking state. At the same time, when the universal wheels move and encounter uneven road surfaces, the length of the damping springs will change, and the damping springs will absorb the impact during the bumping of the universal wheels, reducing the vibration received by the support seat and the top components.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For the surrounding rock support structure of the present utility model, by starting the hydraulic cylinder and the motor, the distance and height between the first guard plate and the second guard plate can be adjusted, enabling the device to support surrounding rocks of different sizes, improving the convenience of the device for supporting different sizes, and at the same time, because the first guard plate, the second guard plate, and the sliding plate are all rigid structures, improving the stability of the device when supporting the surrounding rock.

[0015] 2. In a surrounding rock support structure of the present utility model, through the cooperation of the positioning block and the positioning groove, the first protection plate and the second protection plate can be stably butted after the positioning block enters the positioning groove, improving the tightness when the first protection plate and the second protection plate are connected, and reducing the situation of external impurities entering the positioning groove and the sliding groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is the main schematic diagram of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the sliding plate in the present utility model;

[0019] Figure 3 is the structural schematic diagram of the positioning block in the present utility model;

[0020] Figure 4 is the structural schematic diagram of the baffle in the present utility model;

[0021] Figure 5 is the structural schematic diagram of the slider in the present utility model.

[0022] In the figure: 1, support base; 12, hydraulic cylinder; 13, slider; 14, motor; 15, screw; 16, sleeve; 17, first protection plate; 18, second protection plate; 19, sliding plate; 110, sliding groove; 2, positioning block; 22, positioning groove; 3, cleaning rod; 4, baffle; 42, connecting rod; 5, elastic cloth; 6, damping spring; 62, universal wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0024] The following gives specific embodiments.

[0025] Please refer to Figures 1 to 5As shown in the figure, a surrounding rock support structure according to an embodiment of the present invention includes a pair of support seats 1; a hydraulic cylinder 12 is fixedly connected to the middle of the support seat 1; a slider 13 is fixedly connected to the output end of the hydraulic cylinder 12; the slider 13 is slidably connected to the support seat 1; a motor 14 is fixedly connected to the top of the slider 13; a screw rod 15 is fixedly connected to the output end of the motor 14; a sleeve 16 is threadedly connected to the middle of the screw rod 15; a first protection plate 17 is fixedly connected to the top of one of the sleeves 16; a second protection plate 18 is fixedly connected to the top of the other sleeve 16; a sliding plate 19 is fixedly connected to the middle of the first protection plate 17; a sliding groove 110 is formed in the middle of the second protection plate 18; the sliding plate 19 is slidably connected to the sliding groove 110; during operation, the device is moved to the bottom of the surrounding rock to be supported, and then the motor 14 can be started to make the screw rod 15 rotate. The sleeve 16 will slide along the screw rod 15 under the limiting action of the first protection plate 17, the sliding plate 19 and the sliding groove 110. At this time, the heights of the first protection plate 17 and the second protection plate 18 will change together with the sleeve 16 until the first protection plate 17, the second protection plate 18 and the top of the inner wall of the surrounding rock come into contact. Then the hydraulic cylinder 12 can be started to make the slider 13 slide along the support seat 1. The slider 13 will drive the motor 14 and the first protection plate 17 and the second protection plate 18 on the top to move together. At this time, the sliding plate 19 will slide along the sliding groove 110 under the traction of the slider 13 until the first protection plate 17, the second protection plate 18 and the side of the inner wall of the surrounding rock come into contact. At this time, the structure composed of the first protection plate 17, the second protection plate 18 and the sliding plate 19 will support the surrounding rock; by starting the hydraulic cylinder 12 and the motor 14, the distance and height between the first protection plate 17 and the second protection plate 18 can be adjusted, so that the device can support surrounding rocks of different sizes, improving the convenience of the device for supporting different sizes, and at the same time, because the first protection plate 17, the second protection plate 18 and the sliding plate 19 are all rigid structures, the stability of the device when supporting the surrounding rock is improved.

[0026] Please refer to Figure 2 and Figure 3As shown, positioning blocks 2 are symmetrically and fixedly connected to the middle of the second guard plate 18; the surface of the positioning blocks 2 is a micro-V-shaped structure; positioning grooves 22 are symmetrically formed in the middle of the first guard plate 17; the positioning grooves 22 and the positioning blocks 2 are correspondingly arranged; when the distance between the second guard plate 18 and the sliding plate 19 needs to be adjusted to the closest, the hydraulic cylinder 12 can be activated to make the slider 13 drive the second guard plate 18 and the first guard plate 17 to approach each other. At this time, the second guard plate 18 will drive the positioning blocks 2 to approach the positioning grooves 22 at the first guard plate 17. When the positioning blocks 2 reach the positioning grooves 22, because the surface of the positioning blocks 2 is a micro-V-shaped structure, if there is a misalignment between the positioning blocks 2 and the positioning grooves 22, the positioning blocks 2 can slide into the interior of the positioning grooves 22 through the inclined surfaces on the surface of the positioning blocks 2. Finally, the docking between the first guard plate 17 and the second guard plate 18 can also be completed; through the cooperation of the positioning blocks 2 and the positioning grooves 22, the first guard plate 17 and the second guard plate 18 can be stably docked as the positioning blocks 2 enter the positioning grooves 22, improving the tightness when the first guard plate 17 and the second guard plate 18 are connected and reducing the entry of external impurities into the positioning grooves 22 and the sliding grooves 110.

[0027] Please refer to Figure 3 As shown, a plurality of cleaning rods 3 are fixedly connected to the middle of the positioning blocks 2; the cleaning rods 3 are located between the positioning blocks 2 and the sliding plate 19; the sliding distance of the sliding plate 19 is adjusted by the hydraulic cylinder 12. When the sliding plate 19 moves, it will come into contact with the cleaning rods 3 on the surface of the positioning blocks 2. The cleaning rods 3 will clean the impurities such as soil and gravel attached to the surface of the sliding plate 19, improving the smoothness of the surface of the sliding plate 19 and reducing the jamming when the sliding plate 19 slides along the sliding groove 110.

[0028] Please refer to Figure 1 and Figure 4 As shown, a baffle 4 is fixedly connected to the top of the slider 13; a connecting rod 42 is fixedly connected to the middle of the baffle 4; the connecting rod 42 is slidably connected to the sleeve 16; the baffle 4 will protect the combined structures such as the motor 14, the screw rod 15, and the sleeve 16, reducing the damage caused by external flying gravel and soil. At the same time, when the motor 14 is started to adjust the screw rod 15, the connecting rod 42 will also play a guiding role for the sleeve 16, improving the stability of the sleeve 16 when it moves.

[0029] Please refer to Figure 4 As shown, an elastic cloth 5 is fixedly connected to the top of the baffle 4; the adjacent elastic cloth 5 is fixedly connected to the second guard plate 18 and the first guard plate 17; when the height of the second guard plate 18 is adjusted too high, the elastic cloth 5 will be stretched as the second guard plate 18 is lifted. At this time, the elastic cloth 5 will block the gap between the baffle 4 and the second guard plate 18, reducing the damage to components such as the motor 14 caused by external impurities passing through here.

[0030] Please refer to Figure 5As shown, a plurality of damping springs 6 are fixedly connected to the bottom of the support base 1; a universal wheel 62 is installed at the bottom of the damping spring 6; when the device needs to be moved, the universal wheel 62 can be slid to move it, and when the support structure is in place, the universal wheel 62 can be in a self-locking state. At the same time, when the universal wheel 62 moves over an uneven road surface, the length of the damping spring 6 will change, and the damping spring 6 will absorb the impact when the universal wheel 62 bumps, reducing the vibration acting on the support base 1 and the top component.

[0031] Please refer to Figure 1 As shown, the first guard plate 17 and the second guard plate 18 are arc-shaped structures. Because the first guard plate 17 and the second guard plate 18 are arc-shaped structures, the first guard plate 17 and the second guard plate 18 can stably fit the inner wall of the surrounding rock, improving the stability of the device when supporting the surrounding rock.

[0032] Working principle: Move the device to the bottom of the surrounding rock to be supported. Subsequently, the motor 14 can be started to rotate the screw 15. The sleeve 16 will slide along the screw 15 under the limiting action of the first guard plate 17, the sliding plate 19, and the chute 110. At this time, the heights of the first guard plate 17 and the second guard plate 18 will change together with the sleeve 16 until the first guard plate 17, the second guard plate 18 come into contact with the top of the inner wall of the surrounding rock. Subsequently, the hydraulic cylinder 12 can be started to make the slider 13 slide along the support base 1. The slider 13 will drive the motor 14 and the first guard plate 17 and the second guard plate 18 at the top to move together. At this time, the sliding plate 19 will slide along the chute 110 under the traction of the slider 13 until the first guard plate 17, the second guard plate 18 come into contact with the side of the inner wall of the surrounding rock. At this time, the structure composed of the first guard plate 17, the second guard plate 18, and the sliding plate 19 will support the surrounding rock; when the distance between the second guard plate 18 and the sliding plate 19 needs to be adjusted to the closest, the hydraulic cylinder 12 can be started to make the slider 13 drive the second guard plate 18 and the first guard plate 17 to approach each other. At this time, the second guard plate 18 will drive the positioning block 2 to approach the positioning groove 22 at the first guard plate 17. When the positioning block 2 reaches the positioning groove 22, because the surface of the positioning block 2 is a micro-V-shaped structure, if there is a misalignment between the positioning block 2 and the positioning groove 22, the positioning block 2 can slide into the positioning groove 22 through the inclined surface on the surface of the positioning block 2. Finally, the docking between the first guard plate 17 and the second guard plate 18 can also be completed; the sliding distance of the sliding plate 19 is adjusted by the hydraulic cylinder 12. When the sliding plate 19 moves, it will come into contact with the cleaning rod 3 on the surface of the positioning block 2. The cleaning rod 3 will clean the dirt, gravel and other impurities attached to the surface of the sliding plate 19 to improve the smoothness of the surface of the sliding plate 19; the baffle 4 will protect the combined structure of the motor 14, the screw 15, the sleeve 16, etc., reducing the damage caused by flying gravel and dirt from the outside. At the same time, when the motor 14 is started to adjust the screw 15, the connecting rod 42 will also play a guiding role for the sleeve 16; when the height of the second guard plate 18 is adjusted too high, the elastic cloth 5 will be stretched as the second guard plate 18 is lifted. At this time, the elastic cloth 5 will block the gap between the baffle 4 and the second guard plate 18; when the device needs to be moved, it can be moved by sliding the universal wheel 62. When the support structure is in place, the universal wheel 62 can be in a self-locking state. At the same time, when the universal wheel 62 moves and encounters an uneven road surface, the length of the damping spring 6 will change, and the damping spring 6 will absorb the impact during the bump of the universal wheel 62.

[0033] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A surrounding rock support structure, comprising a pair of support seats (1), characterized in that: A hydraulic cylinder (12) is fixedly connected to the middle of the support base (1); a slider (13) is fixedly connected to the output end of the hydraulic cylinder (12); the slider (13) is slidably connected to the support base (1); a motor (14) is fixedly connected to the top of the slider (13); a screw rod (15) is fixedly connected to the output end of the motor (14); a sleeve (16) is threadedly connected to the middle of the screw rod (15); a first guard plate (17) is fixedly connected to the top of one of the sleeves (16); a second guard plate (18) is fixedly connected to the top of the other sleeve (16); a sliding plate (19) is fixedly connected to the middle of the first guard plate (17); a sliding groove (110) is formed in the middle of the second guard plate (18); the sliding plate (19) is slidably connected to the sliding groove (110).

2. The surrounding rock support structure according to claim 1, characterized in that: Positioning blocks (2) are symmetrically and fixedly connected to the middle of the second guard plate (18); the surface of the positioning blocks (2) is of a micro-V-shaped structure; positioning grooves (22) are symmetrically formed in the middle of the first guard plate (17); the positioning grooves (22) and the positioning blocks (2) are arranged in correspondence with each other.

3. A surrounding rock support structure according to claim 2, characterized in that: A plurality of cleaning rods (3) are fixedly connected to the middle of the positioning blocks (2); the cleaning rods (3) are located between the positioning blocks (2) and the sliding plate (19).

4. A surrounding rock support structure according to claim 3, characterized in that: A baffle (4) is fixedly connected to the top of the slider (13); a connecting rod (42) is fixedly connected to the middle of the baffle (4); the connecting rod (42) is slidably connected to the sleeve (16).

5. The surrounding rock support structure according to claim 4, characterized in that: An elastic cloth (5) is fixedly connected to the top of the baffle (4); the adjacent elastic cloth (5) is fixedly connected to the second guard plate (18) and the first guard plate (17).

6. The surrounding rock support structure according to claim 5, characterized in that: A plurality of damping springs (6) are fixedly connected to the bottom of the support base (1); a universal wheel (62) is installed at the bottom of the damping spring (6).

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