A collapsible and foldable roadway full face support device

Abstract

The utility model provides a collapsible and foldable roadway full section support device, including roof beam body, telescopic bottom beam, two groups telescopic support beam, roof beam body sets up in telescopic support beam's top, is used for supporting the roadway roof, telescopic support beam swing joint is in roof beam body's lower extreme, it is diagonally provided with the beam adjusting oil cylinder between telescopic support beam with roof beam body, the beam adjusting oil cylinder is used for driving telescopic support beam rotates around the hinge point to make telescopic support beam fold or vertical development, telescopic bottom beam can detachably connect in telescopic support beam's bottom, is used for protecting the roadway bottom. This collapsible and foldable roadway full section support device realizes all -round support to the roadway, and still has the folding function, and it is convenient for the removal frame.

Description

Technical Field

[0001] This utility model relates to the field of roadway support equipment, specifically, to a retractable and foldable full-section roadway support device. Background Technology

[0002] When coal mines are mined underground, numerous roadways need to be excavated. Maintaining the smooth flow of these roadways and the stability of the surrounding rock is crucial for mine construction and production. The basic purpose of roadway support is to mitigate and reduce the movement of the surrounding rock, preventing excessive reduction in the roadway cross-section, and preventing the collapse of loosened or damaged rock. Existing roadways are mainly supported using materials such as anchor bolts, steel strips, and metal mesh. However, these support methods are cumbersome and difficult to implement in a timely manner, resulting in reduced stability of the surrounding rock after excavation and insufficient utilization of its self-supporting capacity.

[0003] Patent application CN116378701A discloses a modular, reusable full-section roadway support system and its installation method. The system includes several support units, which are detachably connected end-to-end. Each support unit comprises a flexible cushion layer and a rigid protective layer. The flexible cushion layer is attached to the roadway cross-section, with the side of the flexible cushion layer away from the roadway cross-section forming a smooth transition surface. The rigid protective layer is arranged around the flexible cushion layer and is tightly fitted to the smooth transition surface, forming a roadway space within the rigid protective layer. This modular, reusable full-section roadway support system allows for rapid assembly of support units, resulting in high construction efficiency. It also enables timely roadway support, maintaining the integrity of the surrounding rock after excavation and fully utilizing the self-supporting capacity of the surrounding rock. Furthermore, the support units are detachable, recyclable, and reusable, saving support materials and reducing support costs. However, the structure disclosed in this modular reusable full-section roadway support system does not have functions such as shrinkage and folding, making it difficult to move the support within the roadway. Utility Model Content

[0004] In order to achieve all-round support for the roadway and facilitate its relocation, the technical solution adopted by this utility model is: a retractable and foldable roadway full-section support device, including a top beam, a telescopic bottom beam, and two sets of telescopic support beams.

[0005] The top beam is installed on top of the telescopic support beam and is used to support the roof of the roadway.

[0006] The telescopic support beam is movably hinged to the lower end of the top beam. An adjusting cylinder is obliquely arranged between the telescopic support beam and the top beam. The adjusting cylinder is used to drive the telescopic support beam to rotate around the hinge point so that the telescopic support beam can be folded or vertically unfolded.

[0007] The telescopic bottom beam is detachably connected to the bottom of the telescopic support beam and is used to protect the bottom of the roadway.

[0008] Based on the above, the telescopic bottom beam is provided with bottom beam protrusions at both ends, and each set of telescopic support beams is provided with a telescopic beam seat plate at the bottom, and the telescopic beam seat plate is provided with a groove for the bottom beam protrusions to be inserted.

[0009] Beneficial effects: By designing the telescopic bottom beam and telescopic support beam as a plug-in quick-release structure, disassembly is facilitated. At the same time, the stability of the plug-in connection can be ensured by the self-weight of the telescopic bottom beam and the telescopic support beam.

[0010] Based on the above, the telescopic bottom beam includes a left bottom beam, a right bottom beam, and a telescopic hydraulic cylinder, wherein the left bottom beam and the right bottom beam are movably connected by the telescopic hydraulic cylinder.

[0011] Based on the above, the telescopic support beam includes an upper support beam, a lower support beam, and a support cylinder. The upper support beam and the lower support beam are movably connected through the support cylinder, and the top of the upper support beam is hinged to the top beam body.

[0012] Based on the above, one end of the beam adjusting cylinder is hinged to the top beam body, and the other end of the beam adjusting cylinder is hinged to the upper support beam.

[0013] Based on the above, in the unfolded state, the length of the telescopic bottom beam is the same as the length of the top beam.

[0014] Beneficial effects: By ensuring that the length of the telescopic bottom beam is the same as the length of the top beam in the deployed state, the protected area at the bottom of the roadway can be increased, thereby enhancing the protective effect. Simultaneously, it ensures that the telescopic support beams connected to the telescopic bottom beam remain vertical during support.

[0015] Based on the above, the top beam is hinged to both ends with side panels, and a side panel cylinder is provided between the side panel and the top beam. The side panel cylinder is used to drive the side panel to fold or unfold.

[0016] Beneficial effects: By hinged side panels at both ends of the top beam, the support range of the top beam is increased. At the same time, the side panels can be rotated 90° by the side panel cylinders, so that the side panels on both sides of the top beam can be unfolded during normal operation, allowing the top cutting drilling machine to be arranged on one side and pipelines to be arranged on the other side.

[0017] Based on the above, the top beam body is provided with a top beam hole for the drill bit of the anchor cable drilling rig to pass through.

[0018] This utility model has substantial features and progress compared to the prior art. Specifically, the utility model provides a retractable and foldable full-section support device for roadways. By detachably connecting a bottom beam to the bottom of the support beam and designing the bottom beam as a telescopic bottom beam, the top beam, support beam and bottom beam of the hydraulic support can be transported separately when the hydraulic support is moved, thereby increasing the convenience of transportation.

[0019] Furthermore, by designing the support beam as a combination of an upper support beam and a lower support beam, and using a support cylinder to extend and retract the upper and lower support beams, the support beam can be easily folded, avoiding interference during the folding process.

[0020] Furthermore, by installing an adjusting cylinder between the upper support beam and the top beam, and hinged between the upper support beam and the top beam, the folding function of the upper support beam can be realized, further increasing the convenience of the handling process.

[0021] Therefore, this retractable and foldable full-section roadway support device can provide all-round support for the roadway and is also easy to move. Attached Figure Description

[0022] Figure 1 This is a side view of a retractable and foldable full-section roadway support device provided by this utility model in its unfolded state.

[0023] Figure 2 This is a schematic diagram of the end face of a retractable and foldable full-section roadway support device provided by this utility model in its unfolded state.

[0024] Figure 3 This is a schematic diagram of the bottom beam assembly structure in a retractable and foldable full-section roadway support device provided by this utility model.

[0025] Figure 4 This is a partial structural diagram of a retractable and foldable full-section roadway support device provided by this utility model in its retracted state.

[0026] In the diagram: 1. Top beam; 2. Adjusting beam cylinder; 3. Side plate; 4. Side cylinder; 5. Upper support beam; 6. Support cylinder; 7. Lower support beam; 8. Bottom beam protrusion; 9. Left bottom beam; 10. Telescopic cylinder; 11. Right bottom beam; 12. Telescopic beam seat plate. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0028] Example 1

[0029] This embodiment provides a retractable and foldable full-section support device for roadways, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a top beam 1, a telescopic bottom beam, and two sets of telescopic support beams. The top beam 1 is located on top of the telescopic support beams and is used to support the roof of the roadway.

[0030] The telescopic support beam is hinged to the lower end of the top beam 1. An adjusting cylinder 2 is obliquely arranged between the telescopic support beam and the top beam, and the adjusting cylinder 2 is used to rotate the telescopic support beam around the hinge point, so that the telescopic support beam can be folded or vertically unfolded. The telescopic bottom beam is detachably connected to the bottom of the telescopic support beam, and is used to protect the bottom of the roadway.

[0031] Specifically, such as Figure 2 As shown, the telescopic bottom beam has bottom beam protrusions 8 at both ends, and each set of telescopic support beams has a telescopic beam seat plate 12 at the bottom, with grooves on the telescopic beam seat plate 12 for the bottom beam protrusions 8 to be inserted.

[0032] Specifically, the telescopic bottom beam includes a left bottom beam 9, a right bottom beam 11, and a telescopic cylinder 10, wherein the left bottom beam 9 and the right bottom beam 11 are movably connected by the telescopic cylinder 10.

[0033] The telescopic support beam includes an upper support beam 5, a lower support beam 7, and a support cylinder 6. The upper support beam 5 and the lower support beam 7 are movably connected by the support cylinder 6. The top of the upper support beam 5 is hinged to the top beam body 1. One end of the beam adjusting cylinder 2 is hinged to the top beam body 1, and the other end of the beam adjusting cylinder 2 is hinged to the upper support beam 5.

[0034] In this embodiment, in the unfolded state, the length of the telescopic bottom beam is the same as the length of the top beam 1.

[0035] Example 2

[0036] This embodiment provides a retractable and foldable full-section support device for roadways. The main difference from Embodiment 1 is that, in this embodiment, the top beam 1 is hinged to both ends with side panels 3, and a side panel cylinder 4 is provided between the side panel 3 and the top beam 1. The side panel cylinder 4 is used to drive the side panel 3 to fold or unfold.

[0037] Example 3

[0038] This embodiment provides a retractable and foldable full-section support device for roadways. The main difference from Embodiment 1 is that, in this embodiment, the top beam body is provided with a top beam hole for the drill bit of the anchor cable drilling rig to pass through.

[0039] Specifically, the working steps of the retractable and foldable full-section roadway support device provided by this utility model are as follows: When the support device is working normally, the adjusting beam cylinder 2, the side wall cylinder 4, the support cylinder 6, and the telescopic cylinder 10 extend.

[0040] When moving the device, first retract the support cylinder 6, side cylinder 4, and adjusting beam cylinder 2 in sequence to shrink and fold the device. Then, use a forklift to pull the top beam off the telescopic bottom beam. Finally, use a forklift to move the folded top beam and telescopic support beam together to the place of use.

[0041] Then, the telescopic cylinder is retracted to its minimum length, and finally, a forklift is used to move the retracted telescopic beam to its intended use.

[0042] When disassembling this device, the top beam and telescopic support beam must be removed first, followed by the telescopic bottom beam. When assembling this device, the telescopic bottom beam must be installed first, followed by the assembly of the remaining components.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A collapsible and foldable roadway full face support device, characterised in that: It includes a top beam, a telescopic bottom beam, and two sets of telescopic support beams; The top beam is installed on top of the telescopic support beam and is used to support the roof of the roadway. The telescopic support beam is movably hinged to the lower end of the top beam. An adjusting cylinder is obliquely arranged between the telescopic support beam and the top beam. The adjusting cylinder is used to drive the telescopic support beam to rotate around the hinge point so that the telescopic support beam can be folded or vertically unfolded. The telescopic bottom beam is detachably connected to the bottom of the telescopic support beam and is used to protect the bottom of the tunnel.

2. A collapsible and foldable roadway full face support device according to claim 1, characterized in that: The telescopic bottom beam has bottom beam protrusions at both ends, and each set of telescopic support beams has a telescopic beam seat plate at the bottom, with grooves on the telescopic beam seat plate for the bottom beam protrusions to be inserted.

3. A collapsible and foldable roadway full face support device according to claim 1, characterized in that: The telescopic bottom beam includes a left bottom beam, a right bottom beam, and a telescopic hydraulic cylinder, with the left bottom beam and the right bottom beam being movably connected by the telescopic hydraulic cylinder.

4. A retractable and foldable full-section roadway support device according to claim 1, 2, or 3, characterized in that: The telescopic support beam includes an upper support beam, a lower support beam, and a support cylinder. The upper support beam and the lower support beam are movably connected through the support cylinder, and the top of the upper support beam is hinged to the top beam body.

5. A retractable and foldable full-section roadway support device according to claim 4, characterized in that: One end of the beam adjusting cylinder is hinged to the top beam body, and the other end of the beam adjusting cylinder is hinged to the upper support beam.

6. A retractable and foldable full-section roadway support device according to claim 3, characterized in that: In the unfolded state, the length of the telescopic bottom beam is the same as the length of the top beam.

7. A retractable and foldable full-section roadway support device according to claim 1, 2, 3, or 6, characterized in that: The top beam is hinged to side panels at both ends, and a side panel cylinder is provided between the side panel and the top beam. The side panel cylinder is used to drive the side panel to fold or unfold.

8. A retractable and foldable full-section roadway support device according to claim 7, characterized in that: The top beam body is provided with a top beam hole for the drill bit of the anchor cable drilling rig to pass through.

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