Novel TBM rear matching freestyle fire sandbox

By designing a new type of free-form fire sandbox to accompany the TBM, which can be freely installed on the belt frame using a mounting bracket and positioning components, and combined with silicone sleeves to fix the fire extinguisher, the problem of insufficient safety clearance for fire sandbox installation in narrow tunnel spaces has been solved, improving underground working efficiency and safety.

CN224207275UActive Publication Date: 2026-05-08SHAANXI ZHENGTONG COAL IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI ZHENGTONG COAL IND CO LTD
Filing Date
2025-05-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

When using a full-face open-face TBM for tunneling, the installation of fire sandboxes in the narrow space of the tunnel results in insufficient safety clearance, requiring the tunnel to be widened and manually moved, which affects the efficiency and safety of underground work.

Method used

A novel free-form fire sandbox for TBM rear-mounted systems is designed. The sandbox body can be freely installed on the belt frame through a mounting bracket and positioning components. The fire extinguisher is fixed with a silicone sleeve, which avoids taking up space and ensures stability. Side grooves and hooks facilitate the hanging of tools.

Benefits of technology

It enables the stable installation of fire sandboxes in confined spaces, improves the utilization rate of underground space and work efficiency, ensures smooth passage for workers, and reduces fire risk and manpower consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coal mine production, and discloses a novel TBM (Tunnel Boring Machine) rear matched freestyle fire sandbox, which comprises a sandbox main body, upright posts are fixedly connected to four corners of the bottom of the sandbox main body, clamping seats are fixedly connected to the bottoms of the upright posts, and positioning components are mounted in the clamping seats. A sliding groove is formed in the side face of the sand box body, a fixing rod is fixedly connected into the sliding groove, and sliding blocks are slidably connected to the outer surface of the fixing rod at equal intervals. Due to the design of the clamping base and the positioning assembly, the sandbox body can be directly installed above a belt frame, the situation that originally narrow spaces on the two sides of the belt frame are occupied is avoided, the side of a roadway does not need to be expanded and supported, related potential safety hazards are eliminated, meanwhile, smooth passing of workers is guaranteed, the effective utilization rate of underground space is greatly increased, and the labor intensity of workers is lowered. And the problem of space obstruction caused by installation of the fire sandbox is reduced, and the safety and convenience of the underground working environment are improved.
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Description

Technical Field

[0001] This utility model relates to the field of coal mine production technology, and more specifically to a new type of free-type fire sandbox for TBM (Tunnel Boring Machine) assembly. Background Technology

[0002] When using a full-face open-face TBM for tunneling, oil seepage occurred in the surrounding rock in some sections along the tunnel. These sections also had power distribution points. According to relevant management regulations, fire sandboxes needed to be installed in the oil-seeping sections and at the power distribution points. The tunnel section excavated by the TBM was circular with arc-shaped sides. A DSJ80 / 40 belt conveyor was installed in the middle of the tunnel as a conveyor belt for transporting gangue from the working face, with a width of 1200mm. Two φ159mm cooling pipes and two φ108mm ventilation and water pipes were installed on the right side of the tunnel, and a 700mm wide walkway was on the left side. Overall, the effective space was relatively small.

[0003] The width of a standard fire sandbox is 600mm. If the fire sandbox is installed on the walkway, it will result in insufficient safety clearance between it and the belt conveyor. To meet the safety clearance requirements, the tunnel sidewalls need to be expanded and supported. This process poses certain safety hazards. Moreover, in order to facilitate the passage of workers or equipment, the fire sandbox needs to be moved manually. This operation is both labor-intensive and time-consuming, which greatly reduces the efficiency of underground work. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a new type of free-form fire sandbox for TBM rear-mounted equipment to solve the problems existing in the background art.

[0005] The utility model provides the following technical solution: a novel free-form fire sandbox for TBM (Turbine Machine Machine) assembly, comprising a sandbox body, with columns fixedly connected to the four corners of the bottom of the sandbox body, a bracket fixedly connected to the bottom of the column, a positioning component installed inside the bracket, a sliding groove opened on the side of the sandbox body, a fixing rod fixedly connected inside the sliding groove, a slider slidably connected at equal intervals on the outer surface of the fixing rod, a hook fixedly connected to the surface of the slider, a placement cylinder fixedly connected to the inner wall of the sandbox body, and a retaining sleeve fixedly connected inside the placement cylinder.

[0006] Furthermore, the positioning component includes a rotating groove on the side of the card holder, a rotating rod rotatably connected inside the rotating groove, a positioning plate fixedly connected to the outer surface of the rotating rod, a positioning groove one on the top of the positioning plate, a positioning groove two on the side of the positioning plate, a limiting groove on the side of the card holder directly above the rotating groove, a limiting post fixedly connected to the inner wall of the limiting groove, a spring movably sleeved on the outer surface of the limiting post, a sliding plate slidably connected to the outer surface of the limiting post, and a card plate fixedly connected to the bottom of the sliding plate.

[0007] Furthermore, a connecting rod is fixedly connected to the surface of the column, and the card holder is "n" shaped.

[0008] Furthermore, the sleeve is a silicone tube, and the top of the inner wall of the sleeve is arc-shaped.

[0009] Furthermore, both ends of the rotating rod are inserted into the interior of the rotating groove, and the positioning plate is rotatably connected to the interior of the rotating groove via the rotating rod.

[0010] Furthermore, under normal conditions, the spring's elasticity causes the slide plate to slide downwards, and the outer surface of the card plate is inserted into the interior of the positioning slot.

[0011] Furthermore, the bottom of the card plate is arc-shaped, the first positioning groove and the second positioning groove are of equal size, and an elastic block is fixedly embedded in the surface of the positioning plate.

[0012] Furthermore, the outer surface of the card plate penetrates the card seat and extends into the interior of the rotating groove, and the surface of the sliding plate is provided with a slot that matches the limiting post. The outer surface of the limiting post is inserted into the interior of the slot, and the surface of the sliding plate extends into the outer surface of the card seat.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model, through the design of the card holder and positioning components, allows the sandbox body to be directly and freely installed at any position on the belt conveyor frame, avoiding the occupation of the originally narrow space on both sides of the belt conveyor frame. It eliminates the need to expand and support the roadway sidewalls, thus eliminating related safety hazards. At the same time, it ensures smooth passage for workers, greatly improves the effective utilization rate of underground space, reduces space obstruction caused by the installation of fire sandboxes, and enhances the safety and convenience of the underground working environment.

[0015] 2. In this utility model, the placement cylinder and silicone sleeve inside the sandbox body can firmly fix the fire extinguisher canister, preventing it from shaking or tipping over during transportation or use, ensuring that the fire extinguisher can be used normally at any time. The combination design of the side groove, fixing rod, slider and hook makes it convenient to hang fire-fighting related tools and easy to access. The overall design makes the items in the fire sandbox stored in an orderly manner, so that in the event of a sudden fire, the staff can quickly obtain fire-fighting equipment, effectively improving fire-fighting efficiency and reducing fire risk. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the connection between the fire sandbox and the belt frame of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram showing the connection between the sandbox body, the column, and the mounting base in this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection between the card holder and the positioning component in this utility model;

[0020] Figure 5 This is a schematic diagram showing the connection between the transfer rod and the positioning plate of this utility model;

[0021] Figure 6 This is a schematic diagram showing the connection between the skateboard and the card plate in this utility model.

[0022] The attached diagram is labeled as follows: 1. Sandbox body; 2. Column; 3. Connecting rod; 4. Card seat; 5. Positioning component; 51. Rotating groove; 52. Rotating rod; 53. Positioning plate; 531. Positioning groove one; 532. Positioning groove two; 533. Elastic block; 54. Limiting groove; 55. Limiting post; 56. Spring; 57. Slide plate; 571. Slot; 572. Card plate; 7. Slide groove; 8. Fixing rod; 9. Sliding block; 10. Hook; 11. Placement cylinder; 12. Card sleeve. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0024] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0025] A novel free-form fire sandbox for TBM (Toyota Machine) includes a sandbox body 1, with columns 2 fixedly connected to the four corners of the bottom of the sandbox body 1, and a bracket 4 fixedly connected to the bottom of the column 2. A positioning component 5 is installed inside the bracket 4. A sliding groove 7 is opened on the side of the sandbox body 1, and a fixing rod 8 is fixedly connected inside the sliding groove 7. A slider 9 is equidistantly slidably connected to the outer surface of the fixing rod 8, and a hook 10 is fixedly connected to the surface of the slider 9. A placement cylinder 11 is fixedly connected to the inner wall of the sandbox body 1, and a retainer 12 is fixedly connected inside the placement cylinder 11.

[0026] The distance between the two longitudinal columns 2 is equal to the distance between the fixing rods on both sides of the belt frame.

[0027] In this implementation scheme, the sandbox body 1 is connected to the four corners of the bottom of the column 2, and the column 2 is connected to the bracket 4. The positioning component 5 is installed in the bracket 4. This structural design allows the sandbox body 1 to be placed stably. The positioning component 5 can realize the convenient installation and fixation of the sandbox on the belt frame. The sandbox body 1 is placed directly above the belt frame and is locked to the surface of the fixing rods on both sides of the belt frame by the bracket 4. The position is adjusted and locked by the positioning component 5, avoiding the occupation of the space on both sides of the belt frame, ensuring smooth passage for workers, improving the utilization rate of underground space, reducing the safety hazards caused by roadway expansion and support, and eliminating the need for frequent manual relocation of the sandbox, saving manpower and time, and improving the efficiency of underground work.

[0028] Specifically, the positioning component 5 includes a rotating groove 51 on the side of the card holder 4. A rotating rod 52 is rotatably connected inside the rotating groove 51. A positioning plate 53 is fixedly connected to the outer surface of the rotating rod 52. A positioning groove 531 is provided on the top of the positioning plate 53. A positioning groove 532 is provided on the side of the positioning plate 53. A limiting groove 54 is provided on the side of the card holder 4 directly above the rotating groove 51. A limiting post 55 is fixedly connected to the inner wall of the limiting groove 54. A spring 56 is movably sleeved on the outer surface of the limiting post 55. A sliding plate 57 is slidably connected to the outer surface of the limiting post 55. A card plate 572 is fixedly connected to the bottom of the sliding plate 57.

[0029] In this implementation scheme, by setting the positioning component 5, when the card plate 572 is inserted into the positioning groove 1 531, the position of the sandbox body 1 can be flexibly adjusted. When the sliding plate 57 is pushed upward, the card plate 572 is disengaged from the positioning groove 1 531, and the positioning plate 53 can rotate. When the elastic block 533 abuts against the bottom of the fixing rod, the sliding plate 57 is released, and the spring 56 causes the card plate 572 to be inserted into the positioning groove 2 532, so that the positioning plate 53 rotates 90 degrees and locks, thereby firmly fixing the card seat 4 to the belt frame fixing rod, ensuring the stability of the sandbox installation, so that it is not easy to shake or shift in the complex environment underground.

[0030] Specifically, the surface of the column 2 is fixedly connected to the connecting rod 3, and the card holder 4 is "n" shaped.

[0031] In this implementation scheme, the connecting rod 3 is fixed to the surface of the column 2, which enhances the connection stability between the columns 2 and makes the entire sandbox structure more robust. When subjected to external impact or vibration, it can better maintain the structural integrity and prevent the sandbox from tipping over. The card seat 4 is designed in an "n" shape, which facilitates the engagement with the fixing rods on both sides of the belt frame. During the installation process, the "n" shaped structure can provide better fit and stability, ensuring that the sandbox is tightly connected to the belt frame and is not easy to fall off.

[0032] Specifically, the sleeve 12 is a silicone tube, and the top of the inner wall of the sleeve 12 is arc-shaped.

[0033] In this embodiment, the retainer 12 is a silicone tube with an arc-shaped top edge on its inner wall. When the fire extinguisher canister is inserted into the placement tube 11, the silicone retainer 12, with its good flexibility and friction, can tightly fit the fire extinguisher canister, providing a stable fixation and preventing the fire extinguisher from shaking or tipping over inside the sandbox. This ensures that the fire extinguisher can be easily and normally accessed when needed. The arc-shaped top edge design better adapts to the shape of the fire extinguisher canister, further improving the fixing effect.

[0034] Specifically, both ends of the rotating rod 52 are inserted into the inside of the rotating groove 51, and the positioning plate 53 is rotatably connected to the inside of the rotating groove 51 through the rotating rod 52.

[0035] In this embodiment, the two ends of the rotating rod 52 are inserted into the rotating groove 51, and the positioning plate 53 is rotatably connected to the rotating groove 51 through the rotating rod 52. This connection method makes the rotation of the positioning plate 53 flexible and stable, realizes the precise installation and fixation of the sandbox body 1, and ensures that the positioning plate 53 will not shift or fall off during the rotation process, thus ensuring the normal use of the positioning component 5.

[0036] Specifically, under normal conditions, the elasticity of the spring 56 causes the slide plate 57 to slide downwards, and the outer surface of the card plate 572 is inserted into the positioning groove 531.

[0037] In this implementation scheme, during the installation and adjustment of the sandbox body 1, this design provides an automatic locking function. When the position of the sandbox does not need to be adjusted, the locking plate 572 can be stably inserted into the positioning slot 1 531 or the positioning slot 2 532 to prevent the positioning plate 53 from rotating at will and to ensure the stability of the sandbox. When the position needs to be adjusted, simply push the sliding plate 57 upward to overcome the elastic force of the spring 56 to unlock the positioning plate 53. The operation is simple and convenient, improving the convenience of sandbox installation.

[0038] Specifically, the bottom of the card plate 572 is arc-shaped, the first positioning groove 531 and the second positioning groove 532 are of equal size, and an elastic block 533 is fixedly embedded in the surface of the positioning plate 53.

[0039] In this embodiment, the bottom of the clamping plate 572 is arc-shaped, and the first positioning groove 531 and the second positioning groove 532 are of equal size. An elastic block 533 is embedded in the surface of the positioning plate 53. When the bottom of the arc-shaped clamping plate 572 is inserted into the positioning groove, it can cooperate more smoothly with the first positioning groove 531 and the second positioning groove 532, reducing wear and improving the stability of the clamping. The equal size of the first positioning groove 531 and the second positioning groove 532 ensures that the positioning plate 53 can achieve accurate positioning and stable clamping in different states. The presence of the elastic block 533 plays a role in buffering and increasing friction when the positioning plate 53 rotates to contact the bottom of the fixing rod, so that the positioning plate 53 can more firmly abut against the bottom of the fixing rod, further improving the reliability of the sandbox fixing.

[0040] Specifically, the outer surface of the card plate 572 penetrates through the card holder 4 and extends into the interior of the rotating groove 51. The surface of the slide plate 57 has a slot 571 that matches the limiting post 55. The outer surface of the limiting post 55 is inserted into the interior of the slot 571, and the surface of the slide plate 57 extends into the outer surface of the card holder 4.

[0041] In this implementation scheme, the stability of the sliding plate 57 on the limiting post 55 can be guaranteed, so that the card plate 572 can be accurately inserted into or detached from the positioning groove 1 531 or the positioning groove 2 532. At the same time, it is convenient for the staff to operate the sliding plate 57 from outside the card seat 4, so as to realize convenient control of the positioning component 5 and improve the efficiency of sandbox installation and fixing.

[0042] The working principle and usage process of this utility model are as follows: When fixing the sand box body 1, place the sand box body 1 directly above the belt frame and attach the card seat 4 to the surface of the fixing rods on both sides of the belt frame. By sliding the card seat 4 on the fixing rods, the sand box body 1 is adjusted to a suitable position. Then, by pushing the slide plate 57 upward, the slide plate 57 drives the card plate 572 to slide upward. At this time, the card plate 572 is disengaged from the inside of the first positioning groove 531. The positioning plate 53 can rotate freely inside the rotating groove 51 through the rotating rod 52. When the surface of the elastic block 533 abuts against the bottom of the fixing rod, stop applying external force to the slide plate 57. Through the elasticity of the spring 56, the slide plate 57 drives the card plate 572 to slide downward and insert the card plate 572 into the second positioning groove 532. At this time, the positioning plate 53 rotates ninety degrees and fixes the angle to achieve locking between the card seat 4 and the fixing rod. The sand box body 1 and the belt frame are fixed. This method of directly installing the sand box body 1 above the belt frame does not occupy the space on both sides of the belt frame, ensuring the smooth passage of workers.

[0043] Then insert the fire extinguisher canister into the placement cylinder 11. The canister is secured by the inner wall of the clamp 12 fitting against it. Then, fill the sand box body 1 with sand and hang the fire extinguishing tools on the hook 10.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A novel free-form fire-fighting sandbox for TBM (Turbine Machine) assembly, comprising a sandbox body (1), characterized in that: The sandbox body (1) has four fixed columns (2) at the bottom corners. The bottom of the column (2) is fixedly connected to a bracket (4). The bracket (4) is equipped with a positioning component (5). The side of the sandbox body (1) has a sliding groove (7). The inside of the sliding groove (7) is fixedly connected to a fixing rod (8). The outer surface of the fixing rod (8) is equidistantly connected to a slider (9). The surface of the slider (9) is fixedly connected to a hook (10). The inner wall of the sandbox body (1) is fixedly connected to a placement cylinder (11). The inside of the placement cylinder (11) is fixedly connected to a sleeve (12).

2. A novel free-style fire sand box for the rear support of a TBM according to claim 1, characterized in that: The positioning component (5) includes a rotating groove (51) on the side of the card holder (4). A rotating rod (52) is rotatably connected inside the rotating groove (51). A positioning plate (53) is fixedly connected to the outer surface of the rotating rod (52). A positioning groove one (531) is opened on the top of the positioning plate (53). A positioning groove two (532) is opened on the side of the positioning plate (53). A limiting groove (54) is opened on the side of the card holder (4) directly above the rotating groove (51). A limiting post (55) is fixedly connected to the inner wall of the limiting groove (54). A spring (56) is movably sleeved on the outer surface of the limiting post (55). A sliding plate (57) is slidably connected to the outer surface of the limiting post (55). A card plate (572) is fixedly connected to the bottom of the sliding plate (57).

3. A novel free-style fire sand box for the rear support of a TBM according to claim 1, characterized in that: The surface of the column (2) is fixedly connected to a connecting rod (3), and the card holder (4) is "n" shaped.

4. A novel free-form fire-fighting sandbox for TBMs according to claim 1, characterized in that: The sleeve (12) is a silicone tube, and the top of the inner wall of the sleeve (12) is arc-shaped.

5. A novel free-form fire-fighting sandbox for TBMs according to claim 2, characterized in that: Both ends of the rotating rod (52) are inserted into the inside of the rotating groove (51), and the positioning plate (53) is rotatably connected to the inside of the rotating groove (51) through the rotating rod (52).

6. A novel free-form fire-fighting sandbox for TBMs according to claim 2, characterized in that: Under normal conditions, the elasticity of the spring (56) causes the slide plate (57) to slide downwards, and the outer surface of the card plate (572) is inserted into the interior of the positioning groove (531).

7. A novel free-form fire-fighting sandbox for TBMs according to claim 2, characterized in that: The bottom of the card plate (572) is arc-shaped, the first positioning groove (531) and the second positioning groove (532) are of equal size, and an elastic block (533) is fixedly embedded in the surface of the positioning plate (53).

8. A novel free-form fire-fighting sandbox for TBMs according to claim 2, characterized in that: The outer surface of the card plate (572) penetrates through the card seat (4) and extends into the interior of the rotating groove (51). The surface of the sliding plate (57) is provided with a slot (571) that matches the limiting post (55). The outer surface of the limiting post (55) is inserted into the interior of the slot (571). The surface of the sliding plate (57) extends into the outer surface of the card seat (4).