Flexible protection supporting device for tunnel engineering

Abstract

The utility model discloses a flexible protective support device for tunnel engineering, which comprises a slide rail, sliding mechanisms, locking mechanisms, a support column, a protective net, a clamping plate, a connecting mechanism and an unlocking mechanism, the sliding mechanisms are arranged at the front end and the rear end in the slide rail, the locking mechanisms are arranged at the front ends of the sliding mechanisms, the support column is fixedly connected to the upper end of a hydraulic cylinder, and the protective net is fixedly connected to the upper end of the hydraulic cylinder. A semicircular protective net is arranged between the upper portions of the mounting plates on the two sides, clamping plates are fixedly connected to the two sides of the front end of the sliding rail, a connecting mechanism is arranged on the outer side of the shaft rod, and unlocking mechanisms are arranged at the rear ends of the two sides of the upper portion of the sliding rail. The stability of the equipment is enhanced; a clamping plate, a slot, a connecting mechanism, an unlocking mechanism and the like are arranged, so that the mounting and dismounting of a long tunnel protective net can be adapted, and damaged parts are convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a flexible protective support device for tunnel engineering. Background Art

[0002] With the acceleration of national infrastructure construction, the construction of transportation facilities has also made great progress. In the construction of highways and railways, tunnels can greatly reduce driving distance, shorten operating time, and improve driving safety. At the same time, it can save ground land and protect the environment. With the rapid development of tunnel engineering, some problems have also emerged in tunnel construction. In particular, with the continuous increase in tunnel burial depth, many hard rock tunnels pass through high-altitude stress areas, and rock bursts have occurred frequently in high-altitude stress areas. Rock bursts can cause rock spalling on the cave wall, and severe ejection can occur. Moreover, rock bursts are difficult to predict, which poses a great safety hazard to construction personnel and machinery.

[0003] Publication No. CN217028963U discloses a flexible protective support device for a stable tunnel project. The protective box, the driving motor, the front and rear moving driving gear, the fixed rack and the vent are arranged to facilitate the function of driving the device to move. The inverted U-shaped mobile base, the H-shaped mobile wheels and the fixed rail are arranged to facilitate the function of moving the device. However, the prior art still has defects:

[0004] 1. In the prior art, a dust cleaning mechanism is arranged on one side of the bracket, a lighting lamp and an angle-adjustable mechanical box structure are arranged under the arc-shaped support frame, and a forward and backward moving drive motor structure is arranged on the inner side of the mobile base. This greatly reduces the space available for traffic inside the tunnel, which is very crowded. When a large vehicle passes through, it may collide with these devices, which is not conducive to the safe passage of vehicles. In addition, there is no matching locking structure for its mobile structure to fix it, which makes the equipment easy to move and affects safety.

[0005] 2. The prior art uses fixed rails to transport equipment, but due to the complex structure, it is very inconvenient to disassemble and replace parts, resulting in a waste of a lot of time and labor. Utility Model Content

[0006] The technical problem to be solved by the utility model is to solve the above-mentioned problem and provide a flexible protective support device for tunnel engineering.

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a flexible protective support device for tunnel engineering, comprising two parallel bottom plates, mounting holes are provided on both sides of the bottom plates at the front and rear ends, a slide rail is fixedly connected to the middle of the upper part of the bottom plate, a plurality of evenly distributed card slots are provided in the middle of the bottom of the slide rail, a sliding mechanism is provided at the front and rear ends of the slide rail, a locking mechanism is provided at the front end of the sliding mechanism, a hydraulic cylinder is provided at the upper end of the sliding mechanism, a support column is fixedly connected to the upper end of the hydraulic cylinder, a fixing ring is sleeved on the upper end of the support column, an illuminating lamp is provided on the opposite side of the left and right fixing rings, a mounting plate is fixedly connected to the upper end of the support column, a semicircular protective net is provided between the upper parts of the mounting plates on both sides, a card plate is fixedly connected to the two sides of the front end of the slide rail, a movable bin is provided inside the card plate, a shaft rod is inserted between the front and rear walls of the card plate, a connecting mechanism is provided on the outer side of the shaft rod, a card rod is provided on the upper and lower sides of the connecting mechanism, the card rod is clamped in the middle of the upper and lower walls of the card plate, slots for matching the card plate are provided on both sides of the rear end of the slide rail, and an unlocking mechanism is provided at the rear ends of the upper part of the slide rail.

[0008] As an improvement, the sliding mechanism includes a slider 1 which is clamped inside the slide rail, a slider 2 is fixedly connected to the upper end of the slider 1, pulleys are rotatably connected to the front and rear ends of the slider 1, the pulleys are clamped inside the slide rail, and a through hole is opened at the front end of the slider 1.

[0009] As an improvement, the locking mechanism includes a fixed block fixedly connected to the front end of the upper part of the slider, a limiting rod is inserted in the middle of the fixed block, the limiting rod passes through the fixed block and the through hole, support plates are rotatably connected in the middle of both sides of the fixed block, support frames are rotatably connected between the upper parts of the support plates, the lower end of the support frame is rotatably connected to the upper end of the limiting rod, and a handle is fixedly connected to the front end of the support frame.

[0010] As an improvement, the connecting mechanism includes a connecting block that is sleeved on the front and rear ends of the shaft rod, a spring is arranged between the opposite sides of the connecting block, the upper and lower ends of one side of the connecting block are rotatably connected with a connecting rod, the front and rear connecting rods are close to each other away from one end of the shaft rod and are rotatably connected with the end of the clamping rod located inside the movable bin.

[0011] As an improvement, the unlocking mechanism includes a socket arranged in the middle of the upper and lower ends of the slot, the socket is opened inside the slide rail and is connected to the slot, a pressing rod is inserted into the upper end socket, a pressing block is fixedly connected to the upper end of the pressing rod, a second spring is fixedly connected between the pressing block and the slide rail, and the second spring is sleeved on the outside of the pressing rod.

[0012] The advantages of the utility model compared with the prior art are: 1. The utility model arranges connectable slide rails on both sides of the tunnel, connects the hydraulic cylinder and the support column through a sliding mechanism in the slide rail, and the upper end of the support column is connected to the protective net through a mounting plate. Since the protective net is arranged relatively short, the protective net can be moved forward and backward under the action of human power, and the locking mechanism can be used to stop and fix the equipment at any time. The lighting lamp is arranged on the upper end of the support column through a fixing ring, and can be raised and lowered with the up and down movement of the hydraulic cylinder, which is convenient for replacement. Compared with the prior art, the complex and large electric drive structure is eliminated, space is saved, the safety of vehicle operation is ensured, and the stability of the equipment is enhanced.

[0013] 2. The rear section of the slide rail of the utility model is connected to the slot of the front section of the slide rail through a card plate, and the slide rails at both ends are fixed by a connecting mechanism and a plug rod connected to the plug hole, and then installed on the ground through the mounting holes on the bottom plate, so that the equipment can slide unimpeded. Through this splicing method, it can adapt to the installation and disassembly of longer tunnel protection nets and facilitate the replacement of damaged parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereoscopic diagram of a flexible protective support device for tunnel engineering of the utility model.

[0015] Figure 2 The utility model is a schematic diagram of a main view of a flexible protective support device for tunnel engineering.

[0016] Figure 3 The utility model is a schematic side cross-sectional view of a slide rail of a flexible protective support device for tunnel engineering.

[0017] Figure 4 The utility model is a side cross-sectional schematic diagram of a sliding mechanism and a locking mechanism of a flexible protective support device for tunnel engineering.

[0018] Figure 5 The utility model is a three-dimensional diagram of a locking mechanism of a flexible protective support device for tunnel engineering.

[0019] Figure 6 It is an enlarged view of A of a flexible protective support device for tunnel engineering of the utility model.

[0020] As shown in the figure: 1. Base plate; 2. Mounting hole; 3. Slide rail; 4. Card slot; 5. Sliding mechanism; 5.1. Slider 1; 5.2. Slider 2; 5.3. Pulley; 5.4. Through hole; 6. Locking mechanism; 6.1. Fixed block; 6.2. Limit rod; 6.3. Support plate; 6.4. Support frame; 6.5. Handle; 7. Hydraulic cylinder; 8. Support column; 9. Fixed ring; 10. Lighting lamp; 11. Mounting plate; 12. Protective net; 13. Card plate; 14. Movable bin; 15. Shaft rod; 16. Connecting mechanism; 16.1. Connecting block; 16.2. Spring 1; 16.3. Connecting rod; 17. Card rod; 18. Slot; 19. Unlocking mechanism; 19.1. Socket; 19.2. Press rod; 19.3. Press block; 19.4. Spring 2. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Combined with Figure 1 The utility model is provided with two bottom plates 1 arranged on both sides of the tunnel, and mounting holes 2 are provided on the front and rear ends of both sides of the bottom plate 1 for fixing on the ground, a slide rail 3 is fixedly connected to the middle of the upper part of the bottom plate 1, a slide groove is provided inside the slide rail 3, and a plurality of evenly distributed card grooves 4 are provided in the middle of the bottom, and a sliding mechanism 5 is provided in the middle of the slide rail 3, including a slider 1 5.1 clamped in the inside of the slide rail 3, and the width of the slider 1 5.1 is the same as the width of the slot on the upper part of the slide rail 3, so that the slider 1 5.1 can slide along the slide rail 3, and a slider 2 5.2 is fixedly connected to the upper end of the slide rail 3, and pulleys 5.3 are provided on the front and rear ends of both sides of the slider 1 5.1, and the pulley 5.3 is clamped in the slide groove provided in the inside of the slide rail 3, and can drive the slider 1 5.1 to roll in the slide rail 3, and a through hole 5.4 is provided on the front side of the slider 1 5.1. A limit rod 6.2 of a locking mechanism 6 is provided inside, and a fixed block 6.1 is provided on the upper end of the limit rod 6.2. Support plates 6.3 are rotatably connected to the middle of the two sides of the fixed block 6.1, and a support frame 6.4 is rotatably connected between the upper parts of the support plates 6.3. The lower end of the support frame 6.4 is rotatably connected to the upper end of the limit rod 6.2, and a handle 6.5 is fixedly connected to the front side of the support frame 6.4. The handle 6.5 is lifted to control the upper end of the support frame 6.4 to cooperate with the support plate 6.3 to move downward. At the same time, the lower end of the support frame 6.4 drives the limit rod 6.2 to rise upward. Under the action of the fixed block 6.1, it will not deviate, so that the lower end of the limit rod 6.2 leaves the slot 4, and the slider 5.1 can slide in the slide rail 3. Similarly, pressing down the handle 6.5 makes the limit rod 6.2 clamped in the slot 4 to stop the slider 5.1 from moving.

[0023] A hydraulic cylinder 7 is arranged at the upper end of the slide 2 5.1, and a support column 8 is fixedly connected to the upper end of the hydraulic cylinder 7. A fixing ring 9 is sleeved on the upper end of the support column 8. A lighting lamp 10 is arranged on the opposite side of the left and right fixing rings 9. The hydraulic cylinder 7 drives the support column 8 to rise and fall, and at the same time drives the lighting lamp 10 to rise and fall, so as to facilitate the replacement of the lighting lamp 10. A semicircular protective net 12 is fixedly connected to the upper end of the support column 8 through a mounting plate 11. The protective net 12 is a flexible steel wire mesh, which plays a role in protecting the tunnel vault and absorbing shock.

[0024] A card plate 13 is fixedly connected to both sides of the front end of the slide rail 3, and a movable warehouse 14 is opened inside the card plate 13. A shaft rod 15 is inserted between the front and rear walls inside the card plate 13. A connecting block 16.1 of the connecting mechanism 16 is sleeved on the front and rear ends of the shaft rod 15. A spring 16.2 is arranged between the opposite sides of the connecting block 16.1 and sleeved on the outside of the shaft rod 15. The upper and lower ends of the front side of the connecting block 16.1 are rotatably connected to the connecting rod 16.3, and the front and rear connecting rods 16.3 are close to each other and rotated together to be connected with a card rod 17 away from the end of the shaft rod 15. The card rod 17 is clamped in the middle of the upper and lower walls of the card plate 13, and the end located outside the movable warehouse 14 is inclined to facilitate sliding into the slot 18. By pressing the card rod 17 at the upper end, the two sides of the connecting block 16.1 box are extended so that the card rod 17 at the lower end is also synchronously retracted into the movable warehouse 14.

[0025] Slots 18 for use with the card plate 13 are provided on both sides of the rear end of the slide rail 3, and unlocking mechanisms 19 are provided on both sides of the rear ends of the upper part of the slide rail 3, including a socket 19.1 provided in the middle of the upper and lower ends of the socket 18, the socket 19.1 is provided inside the slide rail 3 and is connected to the slot 18, a pressing rod 19.2 is inserted into the upper through hole 19.1, and a pressing block 19.3 is fixedly connected to the upper end of the pressing rod 19.2, and a spring 19.4 is fixedly connected between the pressing block 19.3 and the slide rail 3 and is sleeved on the outside of the pressing rod 19.2 for resetting. When the card plate 13 of the rear section of the slide rail 3 is clamped in the slot 18 of the front section of the slide rail 3, pressing the pressing block 19.3 causes the pressing rod 19.2 to push the card rod 17 to be retracted into the movable bin 14, and the card rod 17 at the lower end cooperates with the connecting mechanism 16 to be retracted into the movable bin 14, so that the slide rails 3 at both ends can be quickly disassembled.

[0026] When the utility model is implemented, Figure 1 As shown, the slide rails 3 at both ends are placed on both sides of the tunnel section respectively and fixed with bolts through the mounting holes 2. Then, according to the length of the tunnel, the slide rails 3 are spliced ​​together through the clamping plates 13 and the slots 18, and fixed through the connecting mechanism 16 and the unlocking mechanism 19. The sliding mechanism 5 together with the hydraulic cylinder 7 and the support column 8 are slid into the slide rail 3. The protective net 12 is installed on the upper end of the support column 8 through the mounting plate 11, and the lighting lamp 10 is installed through the fixing ring 9. Then, the support column 8 is pushed to push the protective net 12 to the predetermined position, and the hydraulic cylinder 7 is started to lift the protective net 12 to support the tunnel vault.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A flexible protective support device for tunnel engineering, comprising two parallel bottom plates (1), characterized in that: The bottom plate (1) is provided with mounting holes (2) at the front and rear ends of both sides. A slide rail (3) is fixedly connected to the middle of the upper part of the bottom plate (1). A plurality of evenly distributed slots (4) are provided at the middle of the bottom of the slide rail (3). A sliding mechanism (5) is provided at the front and rear ends of the inside of the slide rail (3). A locking mechanism (6) is provided at the front end of the sliding mechanism (5). A hydraulic cylinder (7) is provided at the upper end of the sliding mechanism (5). A support column (8) is fixedly connected to the upper end of the hydraulic cylinder (7). A fixing ring (9) is sleeved on the upper end of the support column (8). An illuminating lamp (10) is provided on the opposite side of the fixing ring (9). A mounting plate (11) is fixedly connected to the upper end of the support column (8). ), a semicircular protective net (12) is arranged between the upper parts of the mounting plates (11) on both sides, a card plate (13) is fixedly connected to the front ends of the slide rail (3), a movable bin (14) is provided inside the card plate (13), an axle rod (15) is inserted between the front and rear walls inside the card plate (13), a connecting mechanism (16) is arranged outside the axle rod (15), a card rod (17) is arranged on the upper and lower sides of the connecting mechanism (16), and the card rod (17) is connected to the middle of the upper and lower walls of the card plate (13), slots (18) for cooperating with the card plate (13) are provided on both sides of the rear end of the slide rail (3), and unlocking mechanisms (19) are provided at the rear ends of the upper parts of the slide rail (3).

2. The flexible protective support device for tunnel engineering according to claim 1, characterized in that: The sliding mechanism (5) comprises a slider 1 (5.1) clamped inside the slide rail (3), the upper end of the slider 1 (5.1) being fixedly connected to a slider 2 (5.2), the front ends and rear ends of both sides of the slider 1 (5.1) being rotatably connected to pulleys (5.3), the pulleys (5.3) being clamped inside the slide rail (3), and a through hole (5.4) being provided inside the front end of the slider 1 (5.1).

3. A flexible protective support device for tunnel engineering according to claim 1 or claim 2, characterized in that: The locking mechanism (6) comprises a fixed block (6.1) fixedly connected to the front end of the upper part of the slider (5.1); a limiting rod (6.2) is inserted in the middle of the fixed block (6.1); the limiting rod (6.2) passes through the fixed block (6.1) and the through hole (5.4); support plates (6.3) are rotatably connected in the middle of both sides of the fixed block (6.1); a support frame (6.4) is rotatably connected between the upper parts of the support plates (6.3); the lower end of the support frame (6.4) is rotatably connected to the upper end of the limiting rod (6.2); and a handle (6.5) is fixedly connected to the front end of the support frame (6.4).

4. The flexible protective support device for tunnel engineering according to claim 1, characterized in that: The connecting mechanism (16) comprises a connecting block (16.1) sleeved on the front and rear ends of the shaft (15); a spring (16.2) is arranged between opposite sides of the connecting block (16.1); the upper and lower ends of one side of the connecting block (16.1) are rotatably connected to a connecting rod (16.3); the front and rear ends of the connecting rod (16.3) away from the shaft (15) are close to each other and are rotatably connected to the end of the clamping rod (17) located inside the movable bin (14).

5. The flexible protective support device for tunnel engineering according to claim 1, characterized in that: The unlocking mechanism (19) comprises a plug hole (19.1) arranged between the upper and lower ends of the slot (18); the plug hole (19.1) is opened inside the slide rail (3) and communicated with the slot (18); a pressing rod (19.2) is inserted into the upper end plug hole (19.1); a pressing block (19.3) is fixedly connected to the upper end of the pressing rod (19.2); a second spring (19.4) is fixedly connected between the pressing block (19.3) and the slide rail (3); and the second spring (19.4) is sleeved on the outside of the pressing rod (19.2).

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