A retractable roadway support device

Abstract

The utility model provides a telescopic roadway support device belongs to roadway support technical field, include: telescopic main part and support unit, telescopic main part includes support column, power unit and two telescopic units, support column installs on power unit, two telescopic units all install on support column, support unit installs on telescopic main part top, the utility model discloses a telescopic roadway support device above, has solved the problem that the existing support device is heavy, and the transportation installation is inconvenient.

Description

Technical Field

[0001] This utility model relates to the field of tunnel support technology, and in particular to a retractable tunnel support device. Background Technology

[0002] Tunnel support is a core component in ensuring construction safety and structural stability in mining, tunneling, and underground engineering, requiring effective constraint of surrounding rock deformation and distribution of pressure. However, existing support devices have significant limitations: rigid supports not only have strong initial load-bearing capacity but also present challenges in transportation and installation due to their bulky structure. Furthermore, their fixed stiffness makes it difficult to flexibly adapt to the dynamic deformation of the surrounding rock during stress release and geological activity, leading to a high risk of fracture failure. While flexible supports can adapt to deformation through a certain degree of ductility, their overall structure remains bulky, making adjustment and operation inconvenient. Moreover, their insufficient strength makes them unable to withstand severe pressure under complex geological conditions, potentially causing engineering accidents. As mineral resource mining progresses to deeper levels and the scale of underground engineering expands, the geological environment faced by tunnels becomes increasingly complex, with surrounding rock pressure exhibiting high stress and strong dynamic characteristics, highlighting the limitations of existing support devices. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a retractable roadway support device, which solves the problems of the existing support devices being bulky and inconvenient to transport and install.

[0004] To achieve the above objectives, this utility model provides the following solution: A retractable roadway support device includes: a retractable main body and a support unit. The retractable main body includes a support column, a power unit, and two retractable units. The support column is installed on the power unit. Both retractable units are installed on the support column. The support unit is installed on the top of the retractable main body.

[0005] Preferably, the power unit includes a tracked driving device, which includes tracks and a drive wheel. The outer surface of the drive wheel meshes with the inner surface of the track. The track is used to ensure stable driving, and the drive wheel is used to provide power.

[0006] Preferably, a support column is fixedly installed on the upper surface of the power unit, and a support unit is installed on the top of the support column. The support unit includes two top plate pillars, which are symmetrically installed on both sides of the top of the support column.

[0007] Preferably, a top plate is fixedly installed on the top of the two top plate supports, and a limiting plate is provided on both sides of the top plate, with the two limiting plates forming a first limiting groove with the surface of the top plate.

[0008] Preferably, a top support beam is installed on the first limiting groove, and two baffles are installed at each end of the top support beam. Two symmetrically distributed second limiting grooves are formed at each end of the top support beam through the two baffles and the lower surface of the top support beam. The two telescopic bodies are laterally connected by the cooperation between the first limiting groove of the top plate and the second limiting groove of the top support beam.

[0009] Preferably, the two telescopic units are symmetrically installed on both sides of the support column. Each telescopic unit includes a first hinge seat, which is connected to the first telescopic rod via a first hinge joint.

[0010] Preferably, the telescopic unit further includes a second hinge seat, which is connected to the second telescopic rod via a second hinge joint; the second telescopic rod is connected to the first telescopic rod via a hinge.

[0011] Preferably, the second telescopic rod is equipped with a connecting protrusion and a connecting groove, which cooperate to connect the two telescopic bodies longitudinally.

[0012] According to the specific embodiments provided by this utility model, the following technical effects are disclosed: (1) The power unit of this utility model is a tracked driving device. The track structure can adapt to the uneven, muddy and other complex terrain that may exist in the roadway, ensuring driving stability. The power wheel provides power drive, so that the device can move autonomously without relying on manual handling, improving the convenience of moving in the roadway and making it easy to flexibly adjust the support position according to the construction progress.

[0013] (2) In this utility model, the support is achieved through the cooperation of the roof support column, the roof and the limiting structure. The cooperation of the roof and the roof support column can effectively disperse the pressure on the top of the roadway and avoid support failure caused by local stress concentration.

[0014] (3) This utility model achieves longitudinal connection of multiple telescopic bodies by cooperating with the connecting protrusion and connecting groove on the second telescopic rod of the telescopic unit. Combined with the transverse connection function, the device can be flexibly combined into a continuous support system according to the length of the roadway, thereby adapting to roadway scenarios of different lengths and improving the versatility and adaptability of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1A schematic diagram of the extension structure provided for an embodiment of this utility model; Figure 2 A schematic diagram of the shrinkage structure provided for an embodiment of this utility model; Figure 3 A schematic diagram of the top support beam structure provided in an embodiment of this utility model; Figure 4 This is an enlarged structural diagram of the connecting protrusion provided in an embodiment of the present utility model; Figure 5 This is an enlarged structural diagram of the connecting groove provided in an embodiment of the present utility model; Figure 6 A schematic diagram of the connection structure provided for an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Support column; 2. First telescopic rod; 3. Second telescopic rod; 4. First hinge joint; 5. Second hinge joint; 6. First hinge seat; 7. Second hinge seat; 8. Top plate; 9. Track; 10. Drive wheel; 11. Connecting protrusion; 12. Connecting groove; 13. Top plate support column; 14. Top support beam; 15. Baffle; 16. Limiting plate; 17. First limiting groove; 18. Second limiting groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1 like Figures 1-6 As shown, this utility model provides a telescopic tunnel support device, including: a telescopic body and a support unit. The telescopic body includes a support column 1, a power unit and two telescopic units; the support column 1 is installed on the power unit; both telescopic units are installed on the support column 1; and the support unit is installed on the top of the telescopic body.

[0021] The power unit includes a tracked travel device, which includes tracks 9 and drive wheels 10. The outer surface of the drive wheels 10 meshes with the inner surface of the tracks 9. The tracks 9 can adapt to some uneven, muddy and other complex terrains that may exist in the tunnel, ensuring travel stability. The drive wheels 10 provide power drive, enabling the device to move autonomously without manual handling, improving the convenience of movement in the tunnel, and facilitating flexible adjustment of the support position according to the construction progress.

[0022] A support column 1 is fixedly installed on the upper surface of the power unit. In this embodiment, the support column 1 serves as the carrier of each unit. A support unit is installed on the top of the support column 1. The support unit includes two top plate pillars 13, which are symmetrically installed on both sides of the top of the support column 1 to support the top plate 8. The top plate 8 is fixedly installed on the top of the two top plate pillars 13. Limiting plates 16 are provided on both sides of the top plate 8 to limit the longitudinal position of the top support beam 14. The two limiting plates 16 and the surface of the top plate 8 form a first limiting groove 17. The top support beam 14 is installed on the first limiting groove 17. Two baffles 15 are installed at each end of the top support beam 14 to limit the lateral position of the top support beam 14. Both ends of the top support beam 14 are connected by two baffles 15 and two symmetrically distributed second limiting grooves 18 formed on the lower surface of the top support beam 14. The two telescopic bodies are laterally connected by the cooperation of the first limiting groove 17 of the roof plate 8 and the second limiting groove 18 of the top support beam 14, and are connected to each other by the first limiting groove 17 and the second limiting groove 18, thereby fixing the top support beam 14 to the roof plate 8. Support is achieved by the cooperation of the roof support column 13, the roof plate 8, and the first limiting groove 17 and the second limiting groove 18. The cooperation between the roof plate 8 and the roof support column 13 can effectively disperse the pressure at the top of the roadway and avoid support failure caused by local stress concentration.

[0023] Two telescopic units are symmetrically installed on both sides of the support column 1. Each telescopic unit includes a first hinge seat 6, which is connected to the first telescopic rod 2 via a first hinge joint 4. The telescopic unit also includes a second hinge seat 7, which is connected to the second telescopic rod 3 via a second hinge joint 5. The second telescopic rod 3 is connected to the first telescopic rod 2 via a hinge. All connections are made using hinges, allowing both the first and second telescopic rods 2 to swing freely longitudinally, ensuring their telescopic effect. Connecting protrusions 11 and connecting grooves 12 are installed on the second telescopic rods 3 of both telescopic units, respectively. These protrusions and grooves cooperate to longitudinally connect the two telescopic bodies. The telescopic bodies are also connected via hinges, ensuring smooth telescopic movement. The telescopic unit consists of multiple sets of hinge seats and telescopic rods, allowing for flexible adjustment of length and angle. It can be folded and retracted when not in use, reducing its overall volume and facilitating transportation and storage in narrow passageways, thus lowering the requirements for transportation and storage space. Working principle: During use, the operator moves the telescopic body to the support position in the roadway by driving the track 9 with the power wheel 10. The connecting protrusion 11 and connecting groove 12 on the second telescopic rod 3 cooperate with each other. The first hinge seat 6 and the first hinge joint 4 drive the first telescopic rod 2, and the second hinge seat 7 and the second hinge joint 5 drive the second telescopic rod 3 to adjust the angle and length so that the telescopic body is in a stretched state, increasing the support distance between the telescopic bodies. At the same time, the first limiting groove 17 of the top plate 8 and the second limiting groove 18 of the top support beam 14 cooperate with each other to connect multiple telescopic bodies laterally to form an integrated support structure.

[0024] Therefore, the above-mentioned retractable roadway support device solves the problems of existing support devices being bulky and inconvenient to transport and install.

[0025] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, those skilled in the art will recognize that, based on the ideas of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A retractable roadway support device, characterized in that, include: The telescopic body and support unit, wherein the telescopic body includes a support column, a power unit and two telescopic units; The support column is mounted on the power unit; Both telescopic units are mounted on the support column; the support unit is mounted on the top of the telescopic body; Two telescopic units are symmetrically installed on both sides of the support column. Each telescopic unit includes a first hinge seat, which is connected to the first telescopic rod via a first hinge joint. The telescopic unit also includes a second hinge seat, which is connected to the second telescopic rod via a second hinge joint. The second telescopic rod is connected to the first telescopic rod by a hinge. The second telescopic rod is equipped with a connecting protrusion and a connecting groove, which cooperate to longitudinally connect the two telescopic bodies.

2. The retractable tunnel support device according to claim 1, characterized in that, The power unit includes a tracked driving device, which includes tracks and a drive wheel. The outer surface of the drive wheel meshes with the inner surface of the track. The track is used to ensure stable travel, and the drive wheel is used to provide power.

3. The retractable tunnel support device according to claim 2, characterized in that, A support column is fixedly installed on the upper surface of the power unit, and a support unit is installed on the top of the support column. The support unit includes two top plate pillars, which are symmetrically installed on both sides of the top of the support column.

4. The retractable roadway support device according to claim 3, characterized in that, A top plate is fixedly installed on the top of the two top plate pillars, and a limiting plate is provided on both sides of the top plate. The two limiting plates and the surface of the top plate form a first limiting groove.

5. A retractable tunnel support device according to claim 4, characterized in that, A top support beam is installed on the first limiting groove. Two baffles are installed at each end of the top support beam. Two symmetrically distributed second limiting grooves are formed at each end of the top support beam through the two baffles and the lower surface of the top support beam. The two telescopic bodies are laterally connected by the cooperation between the first limiting groove of the top plate and the second limiting groove of the top support beam.

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