Tunnel roadway top protection frame

Abstract

The utility model discloses a tunnel roadway top protection frame, which belongs to the technical field of construction protection, and comprises a protection main body and a transmission groove, the transmission groove is arranged at the bottom of the protection main body, the surface of the protection main body is fixedly connected with a first support plate, and the surface of the first support plate is fixedly connected with a worm through a bearing. The device has the advantages that when the device is rapidly installed, people move the device to the position, close to the top, of a tunnel roadway, then people rotate the adjusting knob to drive the worm to rotate so as to drive a worm gear, a transmission shaft and a gear to rotate, and under the mutual cooperation of the gear and a rack, the device can be rapidly installed, and the device can be rapidly installed. The rack drives the movable plate to move, so that the two sets of abutting plates drive the two sets of adjustable abutting assemblies to move correspondingly, the adjustable abutting assemblies tightly abut against the two walls of the tunnel roadway, and people can conveniently and rapidly install the device.

Description

Technical Field

[0001] The utility model relates to the technical field of construction protection, and more specifically, to a tunnel lane top protection frame. Background Art

[0002] Subway is a type of urban rail transit line system, which refers to fast, large-capacity, electric-powered rail transit built in the city. Trains run on fully enclosed lines. Lines in the central urban area are generally located in underground tunnels, and some lines outside the central urban area are generally located on viaducts or on the ground. In some maintenance or equipment installation work, the top of the subway tunnels needs to be drilled, and multiple sets of drilling operations are performed during the construction process. After each set of drilling work is completed, if the equipment is not installed, gravel may fall from the inside of the drilled hole, which will affect the safety of the on-site personnel below. Therefore, a tunnel top protection frame is needed, and the installation process of some existing related devices is relatively cumbersome and not very practical. To solve the above problems, we have launched the following device. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a tunnel top protection frame, which has the characteristic of being easy to install quickly.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides a tunnel lane top protection frame, including a protection body and a transmission groove, the transmission groove is arranged at the bottom of the protection body, a first support plate is fixedly connected to the surface of the protection body, a worm is fixedly connected to the surface of the first support plate through a bearing, an adjusting knob is fixedly connected to the lower end of the worm, a second support plate is fixedly connected to the surface of the second support plate through a bearing, an upper end of the worm is fixedly connected to the surface of the second support plate through a bearing, a transmission shaft is fixedly connected to the surface of the protection body through a bearing, one end of the transmission shaft is fixedly connected to a worm wheel, the worm and the worm wheel are meshed with each other, and the other end of the transmission shaft is connected to the The bearing is fixedly connected to the inner wall of the transmission groove, the surface of the transmission shaft is fixedly connected with a gear, the surface of the protective body is provided with a slot, a movable plate is passed through the slot, a limiting slot is provided on the inner wall of the transmission groove, a limiting block is slidably connected in the limiting slot, the limiting block is fixedly connected to the surface of the movable plate, an avoidance groove is provided on the surface of the protective body, a rack is passed through the avoidance groove, the rack is fixedly connected to the bottom of the movable plate, the rack and the gear are meshed with each other, one end of the movable plate is fixedly connected with a clamping plate, another group of clamping plates is fixedly connected to the surface of the protective body, and an adjustable clamping assembly is fixedly connected to the surface of the clamping plate.

[0007] When using a tunnel top protection frame of the present technical solution, by setting an adjusting knob, a worm, a worm wheel, a gear and a rack, when quickly installing the device, people move the device to a position close to the top of the tunnel, and then turn the adjusting knob to drive the worm to rotate, thereby driving the worm wheel, the transmission shaft and the gear to rotate. With the mutual cooperation of the gear and the rack, the rack drives the movable plate to move, so that the two groups of clamping plates respectively drive the two groups of adjustable clamping components to move, so that the adjustable clamping components are tightly pressed against the two walls of the tunnel, which is convenient for people to quickly install the device.

[0008] Furthermore, the adjustable tightening assembly includes a threaded tube, a screw is threadedly connected in the threaded tube, an anti-slip block is fixedly connected to the other end of the screw, and an adjusting sleeve is fixedly connected to the surface of the screw.

[0009] Furthermore, there are two groups of the limiting blocks and limiting grooves, which are symmetrically arranged on the surface of the movable plate.

[0010] Furthermore, there are two groups of adjustable pressing components, which are symmetrically arranged on the surface of the pressing plate.

[0011] Furthermore, the size of the slot is slightly larger than the cross-sectional size of the movable plate.

[0012] Furthermore, the rack and the movable plate are equal in length.

[0013] Furthermore, the surface of the anti-skid block is provided with anti-skid grooves.

[0014] (3) Beneficial effects

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The top protective frame of a tunnel is provided with an adjusting knob, a worm, a worm wheel, a gear and a rack. When the device is quickly installed, people move the device to a position close to the top of the tunnel, and then turn the adjusting knob to drive the worm to rotate, thereby driving the worm wheel, the transmission shaft and the gear to rotate. Under the mutual cooperation of the gear and the rack, the rack drives the movable plate to move, so that the two sets of abutting plates respectively drive the two sets of adjustable abutting assemblies to move, so that the adjustable abutting assemblies are tightly abutted against the two walls of the tunnel, which facilitates people to quickly install the device;

[0017] 2. This kind of tunnel top protection frame is equipped with an adjustable tightening component. When the tunnel wall has errors and is uneven, people rotate the adjusting sleeves of a corresponding group of adjustable tightening components that are not completely tightened, thereby rotating the corresponding screw rod. Under the mutual cooperation of the screw rod and the threaded tube, the corresponding screw rod drives the corresponding anti-skid block to move and fine-tune the corresponding anti-skid block until the corresponding anti-skid block is tightly against the inner wall of the tunnel, thereby avoiding affecting the installation of the device due to errors and unevenness of the tunnel wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model in a frontal perspective;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model in a frontal three-dimensional cross-sectional view;

[0021] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a structural schematic diagram of the adjustable tightening component in the utility model.

[0023] The markings in the accompanying drawings are:

[0024] 1. Protective body; 2. Transmission groove; 3. First support plate; 4. Worm; 5. Adjustment knob; 6. Second support plate; 7. Transmission shaft; 8. Worm wheel; 9. Gear; 10. Slot; 11. Movable plate; 12. Limiting groove; 13. Limiting block; 14. Avoiding groove; 15. Rack; 16. Clamping plate; 17. Adjustable clamping assembly; 1701. Threaded tube; 1702. Screw; 1703. Anti-skid block; 1704. Adjusting sleeve. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0026] Example:

[0027] The following is combined with Figure 1-4 The utility model is described in further detail.

[0028] See also Figure 1-4 The utility model provides a technical solution: a tunnel top protection frame, including a protection body 1 and a transmission groove 2, the transmission groove 2 is arranged at the bottom of the protection body 1, a first support plate 3 is fixedly connected to the surface of the protection body 1, a worm 4 is fixedly connected to the surface of the first support plate 3 through a bearing, an adjusting knob 5 is fixedly connected to the lower end of the worm 4, a second support plate 6 is fixedly connected to the surface of the protection body 1, the upper end of the worm 4 is fixedly connected to the surface of the second support plate 6 through a bearing, a transmission shaft 7 is fixedly connected to the surface of the protection body 1 through a bearing, a worm wheel 8 is fixedly connected to the other end of the transmission shaft 7, the worm 4 and the worm wheel 8 are meshed with each other, and the other end of the transmission shaft 7 is fixedly connected to the transmission through a bearing The inner wall of the groove 2 and the surface of the transmission shaft 7 are fixedly connected with a gear 9, the surface of the protective body 1 is provided with a slot 10, a movable plate 11 is passed through the slot 10, a limiting slot 12 is provided on the inner wall of the transmission groove 2, a limiting block 13 is slidably connected in the limiting slot 12, the limiting block 13 is fixedly connected to the surface of the movable plate 11, an air avoidance groove 14 is provided on the surface of the protective body 1, a rack 15 is passed through the air avoidance groove 14, the rack 15 is fixedly connected to the bottom of the movable plate 11, the rack 15 and the gear 9 are meshed with each other, a clamping plate 16 is fixedly connected to one end of the movable plate 11, another set of clamping plates 16 are fixedly connected to the surface of the protective body 1, and an adjustable clamping assembly 17 is fixedly connected to the surface of the clamping plate 16.

[0029] By adopting the above technical solution, the top protective frame of the tunnel is provided with an adjusting knob 5, a worm 4, a worm wheel 8, a gear 9 and a rack 15. When the device is quickly installed, people move the device to a position close to the top of the tunnel, and then people turn the adjusting knob 5, thereby driving the worm 4 to rotate, thereby driving the worm wheel 8, the transmission shaft 7 and the gear 9 to rotate. Under the mutual cooperation of the gear 9 and the rack 15, the rack 15 drives the movable plate 11 to move, so that the two groups of clamping plates 16 respectively drive the two groups of adjustable clamping assemblies 17 to move, so that the adjustable clamping assemblies 17 are tightly pressed against the two walls of the tunnel, which is convenient for people to quickly install the device.

[0030] Specifically, the adjustable tightening assembly 17 includes a threaded tube 1701 , in which a screw rod 1702 is threadedly connected, the other end of the screw rod 1702 is fixedly connected to an anti-slip block 1703 , and an adjusting sleeve 1704 is fixedly connected to the surface of the screw rod 1702 .

[0031] By adopting the above technical solution, the top protective frame of the tunnel lane is provided with an adjustable tightening component 17. When there is an error and unevenness in the tunnel lane, people rotate the adjusting sleeve 1704 of the corresponding group of adjustable tightening components 17 that are not completely tightened, so that the corresponding screw 1702 rotates. Under the mutual cooperation of the screw 1702 and the threaded tube 1701, the corresponding screw 1702 drives the corresponding anti-skid block 1703 to move and fine-tune the corresponding anti-skid block 1703 until the corresponding anti-skid block 1703 is tightly against the inner wall of the tunnel lane, thereby avoiding the installation of the device being affected by the error and unevenness of the tunnel lane wall.

[0032] Specifically, there are two groups of limiting blocks 13 and limiting grooves 12 , which are symmetrically arranged on the surface of the movable plate 11 .

[0033] Specifically, there are two groups of adjustable pressing components 17 , which are symmetrically arranged on the surface of the pressing plate 16 .

[0034] Specifically, the size of the slot 10 is slightly larger than the cross-sectional size of the movable plate 11 .

[0035] Specifically, the rack 15 and the movable plate 11 are equal in length.

[0036] Specifically, the surface of the anti-skid block 1703 is provided with anti-skid grooves.

[0037] The working principle of the utility model is as follows: when in use, people move the device to a position close to the top of the tunnel, and then people turn the adjusting knob 5, thereby driving the worm 4 to rotate, thereby driving the worm wheel 8, the transmission shaft 7 and the gear 9 to rotate, and under the mutual cooperation of the gear 9 and the rack 15, the rack 15 drives the movable plate 11 to move, so that the two groups of abutting plates 16 respectively drive the two groups of adjustable abutting components 17 to move, so that the adjustable abutting components 17 are tightly abutted against the two walls of the tunnel, which is convenient for people to quickly install the device, and when there are errors and unevenness in the tunnel walls, the movable plate 11 can be moved. During adjustment, some adjustable clamping components 17 cannot be completely pressed against the inner wall of the tunnel. At this time, people rotate the adjusting sleeve 1704 of the corresponding group of adjustable clamping components 17 that are not completely pressed, so that the corresponding screw 1702 rotates. With the cooperation between the screw 1702 and the threaded tube 1701, the corresponding screw 1702 drives the corresponding anti-skid block 1703 to move and fine-tune the corresponding anti-skid block 1703 until the corresponding anti-skid block 1703 is tightly pressed against the inner wall of the tunnel, so that the installation of the device will not be affected when the tunnel wall has errors and is uneven.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A tunnel top protection frame, comprising a protection body (1) and a transmission groove (2), characterized in that: The transmission groove (2) is arranged at the bottom of the protective body (1); a first support plate (3) is fixedly connected to the surface of the protective body (1); a worm (4) is fixedly connected to the surface of the first support plate (3) via a bearing; an adjusting knob (5) is fixedly connected to the lower end of the worm (4); a second support plate (6) is fixedly connected to the surface of the protective body (1); an upper end of the worm (4) is fixedly connected to the surface of the second support plate (6) via a bearing; a transmission shaft (7) is fixedly connected to the surface of the protective body (1) via a bearing; a worm wheel (8) is fixedly connected to the other end of the transmission shaft (7); the worm (4) and the worm wheel (8) are meshed with each other; the other end of the transmission shaft (7) is fixedly connected to the inner wall of the transmission groove (2) via a bearing; a gear (9) is fixedly connected to the surface of the transmission shaft (7); A slot (10) is provided on the surface of the protective body (1), a movable plate (11) is inserted into the slot (10), a limit slot (12) is provided on the inner wall of the transmission slot (2), a limit block (13) is slidably connected in the limit slot (12), the limit block (13) is fixedly connected to the surface of the movable plate (11), a clearance groove (14) is provided on the surface of the protective body (1), a rack (15) is inserted into the clearance groove (14), the rack (15) is fixedly connected to the bottom of the movable plate (11), the rack (15) and the gear (9) are meshed with each other, one end of the movable plate (11) is fixedly connected to a clamping plate (16), another set of clamping plates (16) is fixedly connected to the surface of the protective body (1), and an adjustable clamping assembly (17) is fixedly connected to the surface of the clamping plate (16).

2. A tunnel top protection frame according to claim 1, characterized in that: The adjustable tightening assembly (17) comprises a threaded tube (1701), a screw rod (1702) is threadedly connected in the threaded tube (1701), an anti-slip stop block (1703) is fixedly connected to the other end of the screw rod (1702), and an adjustment sleeve (1704) is fixedly connected to the surface of the screw rod (1702).

3. The tunnel top protection frame according to claim 1, characterized in that: There are two groups of the limiting blocks (13) and the limiting grooves (12), which are symmetrically arranged on the surface of the movable plate (11).

4. The tunnel top protection frame according to claim 1, characterized in that: There are two groups of adjustable abutting components (17) in total, and they are symmetrically arranged on the surface of the abutting plate (16).

5. The tunnel top protection frame according to claim 1, characterized in that: The size of the slot (10) is slightly larger than the cross-sectional size of the movable plate (11).

6. The tunnel top protection frame according to claim 1, characterized in that: The rack (15) and the movable plate (11) are of equal length.

7. The tunnel top protection frame according to claim 2, characterized in that: The surface of the anti-skid block (1703) is provided with anti-skid grooves.

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