Tunnel supporting device and using method

Abstract

The invention relates to the technical field of tunnel supporting, in particular to a tunnel supporting device and a using method. The tunnel supporting device comprises a bearing vehicle, an expansion supporting device, a first telescopic device, a second telescopic device and a pressure sensing alarm, the bearing vehicle comprises an upper bearing plate and a lower bearing plate, one end of the second telescopic device is fixedly connected with the bottom face of the upper bearing plate through the pressure sensing alarm, and the other end of the second telescopic device is fixedly connected with the top face of the lower bearing plate; one end of the first telescopic device is fixedly connected with the top face of the upper bearing plate, the other end of the first telescopic device is fixedly connected with the expansion supporting device, and the first telescopic device and the second telescopic device are used for driving the expansion supporting device to conduct telescopic movement in the horizontal direction and the vertical direction. By arranging the first telescopic device and the second telescopic device, contraction or extension of the supporting device in the horizontal direction and the vertical direction is achieved, the requirements of tunnels of different sizes can be met, the application range is wider, and adjustment is more flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel support, and in particular to a tunnel support device and a use method thereof. Background Art

[0002] The construction process of a tunnel mainly includes tunnel planning, surveying, designing, penetration control measurement and construction. A mountain tunnel is a tunnel that passes under mountains or hills to shorten the distance and avoid steep slopes. The geology of mountain waterways is different. In order to avoid collapse during the tunnel opening process, tunnel support devices are often used for support. Conventional tunnel support devices have a single function and are mostly made of local materials and welded directly. Although their support effect is good, their height and width are not adjustable and cannot be adjusted according to the width and height of the tunnel, which is very inconvenient.

[0003] The Chinese invention patent with publication number CN117868927B discloses a tunnel support device, including a first limit plate, a second limit plate, a first movable plate, a second movable plate and a top plate, wherein the first limit plate and the second limit plate are arranged opposite to each other in the vertical direction, a first slot is provided on the top of the first limit plate, a second slot is provided on the top of the second limit plate, the first movable plate can be movably arranged in the first slot, the second movable plate can be movably arranged in the second slot, and the top plate connects the tops of the first movable plate and the second movable plate. The first limit plate is provided with a first lifting assembly, the first lifting assembly is used to adjust the height position of the first movable plate in the first slot, the second limit plate is provided with a second lifting assembly, the second lifting assembly is used to adjust the height position of the second movable plate in the second slot.

[0004] Although the above-mentioned tunnel support device can adjust the height of the tunnel support device, it does not have the ability to adjust the width of the tunnel support device. At the same time, when the height of the tunnel support device is adjusted, if the adjustment is excessive, the height adjustment mechanism of the tunnel support device is easily damaged. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a tunnel support device and a method of use. The tunnel support device realizes the contraction or extension of the support device in the horizontal and vertical directions by setting a first telescopic device and a second telescopic device. The support device with variable volume can meet the needs of tunnels of different sizes, has a wider range of applications, and is more flexible to adjust.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A tunnel support device comprises a load-bearing vehicle, an extended support device, a first telescopic device, a second telescopic device and a pressure sensor alarm; the load-bearing vehicle comprises an upper load-bearing plate and a lower load-bearing plate; one end of the second telescopic device is fixedly connected to the bottom surface of the upper load-bearing plate through the pressure sensor alarm, and the other end is fixedly connected to the top surface of the lower load-bearing plate; one end of the first telescopic device is fixedly connected to the top surface of the upper load-bearing plate, and the other end is fixedly connected to the extended support device; the first telescopic device and the second telescopic device are used to drive the extended support device to telescopically move in the horizontal and vertical directions.

[0008] Furthermore, the extended support device includes an arc-shaped top plate, a fixed plate is vertically installed on the top surface of the upper bearing plate, and the fixed plate is arranged at the central axis position of the top surface of the upper bearing plate. The first telescopic device includes a first telescopic column, one end of the first telescopic column is connected to the side of the fixed plate, and the other end is connected to the concave surface of the arc-shaped top plate.

[0009] Furthermore, it also includes a gravel collection box, which is installed on the convex side wall of the curved top plate and is arranged close to the bottom end of the curved top plate. An insert block is provided on the outer side wall of the gravel collection box, and a second slot that is engaged with the insert block is provided on the outer side wall of the convex surface of the curved top plate.

[0010] Furthermore, the extended support device also includes a support plate and an L-shaped plug plate, the support plate is installed at the bottom end of the arc-shaped top plate and is arranged in contact with the top surface of the upper bearing plate, the bottom surface of the support plate is installed with an L-shaped plug plate, the top outer wall of the upper bearing plate is provided with a first slot, the L-shaped plug plate is slidably connected to the first slot, a limiting slider is installed on the bottom surface of the support plate, the top surface of the upper bearing plate is provided with a limiting slot, the limiting slider is slidably connected to the limiting slot, and the extended support device also includes a connecting plate, one end of the connecting plate is connected to the arc-shaped top plate, and the other end is connected to the support plate.

[0011] Furthermore, the second telescopic device includes a load-bearing telescopic column and a telescopic rod. The load-bearing telescopic column is symmetrically installed at the center position of the ends of the upper bearing plate and the lower bearing plate, and the telescopic rod is symmetrically installed with the load-bearing telescopic column as the origin.

[0012] Furthermore, moving wheels with a self-locking structure are installed on the bottom surface of the carrier vehicle.

[0013] Furthermore, a connecting wing is installed on the top of the fixing plate, and a connecting groove is provided on the top outer side wall of the arc-shaped top plate, and the connecting wing is inserted into the connecting groove and slidably connected thereto.

[0014] Furthermore, a rubber top block is provided on the convex side wall of the arc-shaped top plate. The rubber top block is in the shape of an elongated strip and is equidistantly arranged on the outer side wall of the arc-shaped top plate. A stone guide groove is formed between adjacent rubber top blocks, and the gravel collection box is arranged near the end of the stone guide groove.

[0015] Furthermore, the first telescopic device, the second telescopic device and the pressure sensor alarm are all electrically connected to the controller.

[0016] In a second aspect, the present invention provides a method for using a tunnel support device, comprising the following steps:

[0017] Step 1: Push the carrier to the support position and lock the moving wheels to ensure that the carrier will not move;

[0018] Step 2: Connect the load-bearing telescopic column, the first telescopic column, and the telescopic rod to a power source, and control the load-bearing telescopic column and the telescopic rod to extend to a supporting height through a controller;

[0019] Step 3: The controller controls the first telescopic column to extend, driving the arc-shaped top plate and the rubber top block to move outward to the best supporting position;

[0020] Step 4, after the support work is completed, the load-bearing telescopic column, the first telescopic column, and the telescopic rod are controlled by the controller to retract, completing the retraction work of the support device, and the retracted support device is pushed out of the tunnel for next use.

[0021] Beneficial effects of the invention: The invention discloses a tunnel support device, which includes a load-bearing vehicle, an extended support device, a first telescopic device, a second telescopic device and a pressure sensor alarm. The load-bearing vehicle includes an upper load-bearing plate and a lower load-bearing plate. One end of the second telescopic device is fixedly connected to the bottom surface of the upper load-bearing plate through the pressure sensor alarm, and the other end is fixedly connected to the top surface of the lower load-bearing plate. One end of the first telescopic device is fixedly connected to the top surface of the upper load-bearing plate, and the other end is fixedly connected to the extended support device. The first telescopic device and the second telescopic device are used to drive the extended support device to telescopically move in the horizontal and vertical directions. By setting the first telescopic device and the second telescopic device, the expansion support device can be contracted or extended in the horizontal and vertical directions. The support device with variable volume can meet the needs of tunnels of different sizes, with a wider range of applications and more flexible adjustment. A rubber top block is set on the contact surface between the arc-shaped top plate and the tunnel wall, so that the extension support device can better fit the tunnel wall and achieve a better support effect. A gravel collection box is installed between the rubber top block and the L-shaped plug plate, which can collect gravel that falls when supporting the tunnel, so as to prevent gravel from falling and injuring tunnel construction personnel. The pressure sensor alarm can alarm and remind the staff in time when the support device is subjected to excessive force, thereby improving the safety of the construction personnel and preventing the first telescopic device and the second telescopic device from being over-extended and causing damage. Based on the above-mentioned tunnel support device, the present invention also provides a method for using the tunnel support device. When using the tunnel support device, the tunnel support device can be pushed to a specified position, thereby avoiding transportation and reducing waste of manpower. At the same time, after the support is completed, the volume of the tunnel support device is reduced, so that the tunnel support device can be pushed out, which can be reused and save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper bearing plate of the present invention.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Carrying vehicle, 11. Lower carrying plate, 111. Moving wheel, 12. Upper carrying plate, 121. First slot, 122. Limiting slide groove, 13. Telescopic rod, 14. Load-bearing telescopic column, 2. Fixed plate, 21. Connecting wing, 3. First telescopic column, 4. Extended support device, 41. Arc-shaped top plate, 411. Connecting groove, 412. Second slot, 42. Support plate, 43. L-shaped plug plate, 44. Limiting slide block, 45. Rubber top block, 46. Stone guide groove, 47. Connecting plate, 5. Gravel collection box, 51. Plug block. DETAILED DESCRIPTION

[0026] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0028] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0029] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0030] Embodiment 1:

[0031] like Figure 1-Figure 3 As shown, a tunnel support device provided in this embodiment includes a carrier 1, an extended support device 4, a first telescopic device, a second telescopic device and a pressure sensor alarm. The carrier 1 includes an upper carrier plate 12 and a lower carrier plate 11. One end of the second telescopic device is fixedly connected to the bottom surface of the upper carrier plate 12 through a pressure sensor alarm, and the other end is fixedly connected to the top surface of the lower carrier plate 11. One end of the first telescopic device is fixedly connected to the top surface of the upper carrier plate 12, and the other end is fixedly connected to the extended support device 4. The first telescopic device and the second telescopic device are used to drive the extended support device 4 to telescopically move in the horizontal and vertical directions. One end of the second telescopic device is connected to the upper carrier plate 12 by driving, and the other end is connected to the lower carrier plate 11. The controller controls the contraction or extension of the second telescopic device to realize the telescopic movement of the carrier 1 in the vertical direction, so that the carrier 1 can adapt to tunnels of different heights; one end of the first telescopic device is connected to the top surface of the upper carrier plate 12, and the other end is connected to the extended support device 4 by driving, so that the extended support device 4 can contract or extend in the horizontal direction to adapt to tunnels of different widths. Compared with non-retractable support devices, retractable support devices can change their own volume and reduce their own volume when not in use, making them easier to carry. When in use, the telescopic movement can be applied to more tunnels of different sizes. After the volume is expanded, it can provide better support effects, and the adjustment is also very flexible and convenient. The pressure sensor alarm can promptly sound an alarm to remind staff when the support device is under excessive force, thereby improving the safety of construction personnel and preventing the first and second telescopic devices from over-extension and causing damage.

[0032] In this embodiment, the extended support device 4 includes an arc-shaped top plate 41, a fixed plate 2 is vertically installed on the top surface of the upper bearing plate 12, and the fixed plate 2 is arranged at the central axis position of the top surface of the upper bearing plate 12. The first telescopic device includes a first telescopic column 3, one end of the first telescopic column 3 is connected to the side of the fixed plate 2, and the other end is connected to the concave surface of the arc-shaped top plate 41. The arc-shaped top plate 41 is in direct contact with the tunnel. The arc shape can better fit the side wall of the tunnel. The arc-shaped top plate 41 has a certain width, so that the support area is larger and the safety of the tunnel is ensured. Preferably, a rubber top block 45 is provided on the convex side wall of the arc-shaped top plate 41. The rubber top block 45 has a certain elasticity. The side wall of the tunnel is not smooth and flat. The elastic rubber top block 45 can better fit the position that needs support and achieve a better support effect. A gravel collection box 5 is also installed on the expansion device. The gravel collection box 5 is installed on the convex side wall of the arc-shaped top plate 41 and is arranged close to the support plate 42. An insert block 51 is arranged on the outer side wall of the gravel collection box 5. A second slot 412 that is engaged with the insert block 51 is arranged on the outer side wall of the convex surface of the arc-shaped top plate 41. When supporting, the arc-shaped top plate 41 will rub against the tunnel side wall to produce gravel. The gravel collection box 5 can collect the gravel in time to prevent the gravel from falling and injuring the staff. Preferably, the rubber top block 45 is in the shape of a long strip and is evenly and equidistantly arranged. A stone guide groove 46 is formed between adjacent rubber top blocks 45. The gravel collection box 5 is arranged close to the end of the stone guide groove 46. The gravel can fall into the gravel collection box 5 along the stone guide groove 46.

[0033] In this embodiment, the extended support device 4 also includes a support plate 42 and an L-shaped plug plate 43. The support plate 42 is installed at the bottom end of the arc-shaped top plate 41 and is arranged in contact with the top surface of the upper bearing plate 12. The bottom surface of the support plate 42 is installed with an L-shaped plug plate 43. The top outer wall of the upper bearing plate 12 is provided with a first slot 121. The L-shaped plug plate 43 is slidably connected with the first slot 121. The bottom surface of the support plate 42 is installed with a limiting slider 44. The top surface of the upper bearing plate 12 is provided with a limiting slide 122. The limiting slider 44 is slidably connected with the limiting slide 122. Preferably, there are two arc-shaped top plates 41, and the two arc-shaped top plates 41 can achieve horizontal movement under the driving action of the first telescopic device. The setting of the L-shaped plug plate 43 is to make the horizontal movement process of the arc-shaped top plate 41 more stable, so that it has horizontal support during the movement process. The setting of the limiting slider 44 and the limiting slide 122 is to prevent the L-shaped plug plate 43 from disengaging from the first slot 121 in the process of sliding with the arc-shaped top plate 41, so as to play a limiting role.

[0034] In this embodiment, the second telescopic device includes a load-bearing telescopic column 14 and a telescopic rod 13. The load-bearing telescopic column 14 is symmetrically installed at the end center position of the upper bearing plate 12 and the lower bearing plate 11, and the telescopic rod 13 is symmetrically installed with the load-bearing telescopic column as the origin. Preferably, the telescopic rod 13 is arranged near the four corners of the upper bearing plate 12 and the lower bearing plate 11, and the load-bearing telescopic column 14 is arranged between the two telescopic rods 13 on the same side. The controller simultaneously controls the extension and contraction of the load-bearing telescopic column 14 and the telescopic rod 13, so that the upper bearing plate 12 can be stably raised or lowered under the drive of the second telescopic device. The bottom surface of the carrier 1 is installed with a moving wheel 111 with a self-locking structure. After the support device is moved to the support position, the position can be fixed by the moving wheel 111 with a self-locking structure to ensure the stability of the carrier 1. The top side wall of the fixed plate 2 is installed with a connecting wing 21, and the top outer side wall of the arc-shaped top plate 41 is provided with a connecting groove 411, and the connecting wing 21 is inserted into the connecting groove 411 and slidably connected therewith. The connecting wing 21 is installed on the top of both sides of the fixing plate 2, and is slidably connected to the connecting grooves 411 of the two arc-shaped top plates 41, respectively. Preferably, the telescopic distance of the first telescopic device is less than the length of the connecting wing 21, so as to ensure that there will be no support loopholes in the process of supporting the arc-shaped top plates 41, and further ensure the support effect. The extended support device 4 also includes a connecting plate 47, one end of which is connected to the arc-shaped top plate 41, and the other end is connected to the support plate 42. The setting of the connecting plate 47 forms a stable triangular structure at the end of the arc-shaped top plate 41, so as to ensure the stability of the arc-shaped top plate 41 during support.

[0035] Embodiment 2:

[0036] like Figure 1-Figure 3 As shown, based on the first embodiment, the present invention further provides a method for using a tunnel support device, comprising the following steps:

[0037] Step 1: Push the carrier 1 to the supporting position, and lock the moving wheels 111 to ensure that the carrier 1 will not move;

[0038] Step 2: Connect the load-bearing telescopic column 14, the first telescopic column 3, and the telescopic rod 13 to a power source, and control the load-bearing telescopic column 14 and the telescopic rod 13 to extend to a supporting height through a controller;

[0039] Step 3: The controller controls the first telescopic column 3 to extend, driving the arc-shaped top plate 41 and the rubber top block 45 to move outward to the best supporting position;

[0040] Step 4, after the support work is completed, the controller controls the load-bearing telescopic column 14, the first telescopic column 3, and the telescopic rod 13 to retract, completing the retraction work of the support device, and the retracted support device is pushed out of the tunnel for next use.

[0041] The tunnel support device can be pushed to the designated position when in use, thus avoiding transportation and reducing waste of manpower; at the same time, after the support is completed, the volume of the tunnel support device is reduced, so that the tunnel support device can be pushed out and reused, saving resources.

[0042] All technical features in this embodiment can be freely combined according to actual needs. The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be covered by the scope of the claims of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

[0043] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical scheme is within the protection scope of the present invention.

Claims

1. A tunnel support device, Features: The invention comprises a carrier vehicle (1), an extended support device (4), a first telescopic device, a second telescopic device and a pressure sensor alarm; the carrier vehicle (1) comprises an upper carrier plate (12) and a lower carrier plate (11); one end of the second telescopic device is fixedly connected to the bottom surface of the upper carrier plate (12) via the pressure sensor alarm, and the other end is fixedly connected to the top surface of the lower carrier plate (11); one end of the first telescopic device is fixedly connected to the top surface of the upper carrier plate (12), and the other end is fixedly connected to the extended support device (4); the first telescopic device and the second telescopic device are used to drive the extended support device (4) to telescopically move in the horizontal and vertical directions.

2. A tunnel support device according to claim 1, Features: The expansion support device (4) comprises an arc-shaped top plate (41), a fixing plate (2) is vertically mounted on the top surface of the upper bearing plate (12), and the fixing plate (2) is arranged at the central axis position of the top surface of the upper bearing plate (12); the first telescopic device comprises a first telescopic column (3), one end of the first telescopic column (3) is connected to the side surface of the fixing plate (2), and the other end is connected to the concave surface of the arc-shaped top plate (41).

3. A tunnel support device according to claim 1, Features: The invention also comprises a gravel collection box (5), the gravel collection box (5) being mounted on the convex side wall of the arc-shaped top plate (41) and arranged close to the bottom end of the arc-shaped top plate (41), an insert block (51) being arranged on the outer side wall of the gravel collection box (5), and a second slot (412) being engaged with the insert block (51) being arranged on the outer side wall of the convex surface of the arc-shaped top plate (41).

4. A tunnel support device according to claim 2, Features: The extended support device (4) further comprises a support plate (42) and an L-shaped plug plate (43); the support plate (42) is mounted at the bottom end of the arc-shaped top plate (41) and is arranged in contact with the top surface of the upper bearing plate (12); the bottom surface of the support plate (42) is mounted with the L-shaped plug plate (43); the top outer wall of the upper bearing plate (12) is provided with a first slot (121); the L-shaped plug plate (43) is slidably connected to the first slot (121); the bottom surface of the support plate (42) is mounted with a limiting slide block (44); the top surface of the upper bearing plate (12) is provided with a limiting slide groove (122); the limiting slide block (44) is slidably connected to the limiting slide groove (122); the extended support device (4) further comprises a connecting plate (47); one end of the connecting plate (47) is connected to the arc-shaped top plate (41), and the other end is connected to the support plate (42).

5. A tunnel support device according to claim 1, Features: The second telescopic device comprises a load-bearing telescopic column (14) and a telescopic rod (13); the load-bearing telescopic column (14) is symmetrically mounted at the center positions of the ends of the upper bearing plate (12) and the lower bearing plate (11); and the telescopic rod (13) is symmetrically mounted with the load-bearing telescopic column as the origin.

6. A tunnel support device according to claim 1, Features: The bottom surface of the carrier vehicle (1) is provided with moving wheels (111) with a self-locking structure.

7. A tunnel support device according to claim 2, Features: A connecting wing (21) is installed at the top of the fixing plate (2), a connecting groove (411) is provided on the top outer side wall of the arc-shaped top plate (41), and the connecting wing (21) is inserted into the connecting groove (411) and slidably connected thereto.

8. A tunnel support device according to claim 3, Features: A rubber top block (45) is provided on the convex side wall of the arc-shaped top plate (41). The rubber top blocks (45) are in the shape of long strips and are arranged at equal intervals on the outer side wall of the arc-shaped top plate (41). A stone guide groove (46) is formed between adjacent rubber top blocks (45). The crushed stone collection box (5) is arranged near the end of the stone guide groove (46).

9. A tunnel support device according to claim 1, Features: It also includes a controller, and the first telescopic device, the second telescopic device and the pressure sensor alarm are all electrically connected to the controller.

10. A method for using a tunnel support device, It is characterized in that The following steps are involved: Step 1: Push the carrier vehicle (1) to the supporting position, and lock the moving wheels (111) to ensure that the carrier vehicle (1) will not move; Step 2: Connect the load-bearing telescopic column (14), the first telescopic column (3), and the telescopic rod (13) to a power source, and control the load-bearing telescopic column (14) and the telescopic rod (13) to extend to a supporting height through a controller; Step 3: The controller controls the first telescopic column (3) to extend, driving the arc-shaped top plate (41) and the rubber top block (45) to move outward to an optimal supporting position; Step 4, after the support work is completed, the load-bearing telescopic column (14), the first telescopic column (3), and the telescopic rod (13) are controlled by the controller to retract, thereby completing the retraction work of the support device, and the retracted support device is pushed out of the tunnel for next use.

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