Treatment device for roadway floor heave
By designing an adjustable-height cab, the problems of limited operating space for the driver and equipment collisions in traditional roadway floor drum repair machines have been solved, enabling more efficient roadway passage and safer operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU ZHENGLI MINING CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
The fixed height of the cab of the traditional tunnel floor drum repair machine results in a cramped operating space for tall drivers, which can easily lead to fatigue. Furthermore, when passing through low tunnels, the machine is prone to scraping and colliding with the tunnel walls, posing risks to equipment damage and driver safety.
An adjustable-height cockpit was designed. Through the cooperation of a support sleeve, telescopic frame, lifting mechanism and connecting mechanism, the height of the cockpit can be flexibly adjusted to meet the needs of drivers of different heights, and the height can be lowered when encountering low alleyways to avoid collisions.
It improves the operator's comfort and safety, reduces the risk of equipment damage, and enhances the roadway floor heave repair machine's mobility and operational safety in complex environments.
Smart Images

Figure CN224171044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of roadway floor heave treatment equipment, and in particular to a device for treating roadway floor heave. Background Technology
[0002] Floor heave is a common mining engineering disaster that poses a serious threat to safe production during mining operations. Its main cause is uneven stress distribution in the underground rock mass during mining, leading to deformation and damage. Especially in complex geological structures with dense faults and joints, the poor stability of the rock mass further increases the risk of floor heave.
[0003] Floor heave in mines has multifaceted impacts on mine operations. It not only reduces production and resource utilization efficiency but also significantly increases roadway maintenance costs. Furthermore, floor heave can trigger safety accidents, further exacerbating the decline in production efficiency and resource utilization, and even causing casualties and production interruptions. These situations may force mining companies to adjust or abandon their original mining plans, sometimes even having to forgo some mineral resources. Ultimately, the overall economic benefits of the mine will be negatively affected, and the mining company will suffer severe economic losses.
[0004] The main component of the roadway floor heave treatment device is the roadway floor heave repair machine. This machine plays a crucial role in treating roadway floor heave by quickly cutting, breaking, or compacting the heave area. Compared to traditional manual repair methods, it significantly improves repair efficiency, restoring the roadway's smoothness and traffic capacity in a shorter time, thus reducing the impact on mine production. Traditional roadway floor heave repair machines have significant drawbacks during roadway operations. Firstly, the fixed height of the operator's cab restricts headroom for taller operators, leading to fatigue and distraction, increasing the risk of operational errors. Secondly, when the machine passes through lower roadways, the fixed-height cab is prone to scraping and colliding with the roadway walls, causing equipment damage and seriously threatening operator safety. Utility Model Content
[0005] The purpose of this invention is to address the problems of traditional tunnel floor heave repair machines, where the fixed height of the cab restricts the operating space for tall drivers, leading to fatigue and errors; and the machines are prone to colliding with the tunnel walls when passing through low tunnels, damaging the equipment and endangering the driver's safety. This invention proposes a tunnel floor heave treatment device.
[0006] The technical solution of this utility model is as follows: a device for treating roadway floor heave, including a driver's cab and a canopy set on the top of the driver's cab, and further including: multiple support sleeves fixedly connected to the upper surface of the driver's cab, and telescopic frames with their ends inserted into the corresponding support sleeves fixedly connected to both sides of the canopy; a lifting mechanism installed on the upper surface of one end of the driver's cab to drive the canopy to move up and down; and a connecting mechanism set at the connection between the lifting mechanism and the canopy to allow the canopy to detach from the top of the driver's cab.
[0007] Optionally, the lifting mechanism includes a support connected to the upper surface of the cockpit, a multi-stage cylinder fixedly connected inside the support, a pair of L-shaped brackets fixedly connected to the lower surface of the roof, a central top block fixedly connected to the lower surface of the roof, the central top block being fixedly connected to the end of the L-shaped brackets, and the central top block being connected to the piston rod of the support.
[0008] Optionally, the connecting mechanism includes a locking block fixedly connected to the piston rod of the multi-stage cylinder. The central top block has a slot for inserting the locking block. The slot has a pair of telescopic holes inside. The locking block has a pair of sliding grooves corresponding to the telescopic holes. Each sliding groove has a return spring inside. One end of each return spring is fixedly connected to the inner wall of the sliding groove, and the other end of each return spring is fixedly connected to a locking rod inserted into the slot.
[0009] Optionally, the end of the locking plug away from the reset spring is configured as a ball plug.
[0010] Optionally, a pair of mounting plates are fixedly connected to the bottom outer wall of the support, and a pair of bolts are provided on the upper surface of the mounting plates.
[0011] Optionally, a seat is fixedly connected to the upper surface of the cockpit near the support.
[0012] Optionally, both of the L-shaped brackets are arranged symmetrically with respect to the central top block.
[0013] In summary, this application includes at least one of the following beneficial technical effects:
[0014] This utility model utilizes a combination of support sleeves, telescopic frames, lifting mechanisms, and connecting mechanisms to design an adjustable-height cab. This allows the tunnel floor drum repair machine to not only accommodate the height needs of different technicians, avoiding cramped headroom, reducing fatigue from cramped positions, and alleviating the physical burden of long-term work, thus ensuring technicians maintain a good working condition; it also allows for flexible lowering of the cab height in low tunnels, enabling smooth passage through narrow spaces and effectively avoiding scraping and collisions with tunnel walls. This reduces the risk of equipment damage, ensures technician safety, and significantly improves the equipment's mobility and operational safety in complex tunnel environments. Attached Figure Description
[0015] Figure 1 A structural schematic diagram of a tunnel floor heave control device according to this utility model is provided;
[0016] Figure 2 for Figure 1 Partial structural diagram;
[0017] Figure 3 for Figure 1 A partial cross-sectional structural diagram;
[0018] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.
[0019] Reference numerals: 1. Cockpit; 11. Support sleeve; 12. Telescopic frame; 13. Canopy; 14. Seat; 15. L-shaped bracket; 16. Center top block; 161. Slot; 162. Telescopic hole; 2. Support; 21. Mounting plate; 211. Bolt; 22. Multi-stage cylinder; 23. Locking block; 24. Slide groove; 25. Return spring; 26. Locking rod. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0021] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example
[0027] like Figures 1 to 4 As shown, this utility model proposes a device for treating roadway floor heave, including a driver's cab 1 and a canopy 13 installed on the top of the driver's cab 1. The canopy 13 is used to protect the driver's head from falling rocks or injuries caused by passing through low roadways. Several support sleeves 11 are fixedly connected to the upper surface of the driver's cab 1, and telescopic frames 12 with their ends inserted into the corresponding support sleeves 11 are fixedly connected to both sides of the canopy 13.
[0028] Among them, such as Figures 1 to 4As shown, a lifting mechanism that drives the roof 13 to move up and down is installed on the upper surface of one end of the cockpit 1. The lifting mechanism includes a support 2 connected to the upper surface of the cockpit 1. A seat 14 is fixedly connected to the upper surface of the cockpit 1 near the support 2. A multi-stage cylinder 22 is fixedly connected inside the support 2. The multi-stage cylinder 22 is composed of multiple pistons or cylinder liners of different diameters, which are sequentially assembled and usually arranged in a stepped manner. These pistons are connected to each other by piston rods or connecting parts, forming multiple working chambers in the cylinder. Each chamber can be independently supplied with air or oil, thereby achieving different working strokes and output forces. In addition, according to different application requirements, the pistons are driven to move sequentially by controlling the flow sequence and pressure of gas or liquid between the chambers. When compressed air or hydraulic oil is input into the first-stage cylinder, the first-stage piston extends first. After reaching a certain stroke, the gas or liquid enters the next-stage cylinder, pushing the next-stage piston to extend, and so on, to achieve multi-stage extension and retraction, thereby obtaining a larger stroke and output force. A pair of L-shaped brackets 15 are fixedly connected to the lower surface of the canopy 13. The L-shaped brackets 15 distribute the force across the entire L-shaped bracket when the central top block 16 presses against the canopy 13, preventing damage caused by excessive localized stress on the canopy 13. A central top block 16 is also fixedly connected to the lower surface of the canopy 13. The central top block 16 is fixedly connected to the end of the L-shaped bracket 15 and is also connected to the piston rod of the support 2. The pair of L-shaped brackets 15 are symmetrically arranged with the central top block 16 as the center.
[0029] In addition, such as Figures 2 to 4 As shown, a connecting mechanism is provided at the connection between the lifting mechanism and the roof 13 to allow the roof 13 to detach from the top of the cockpit 1. The connecting mechanism includes a locking block 23 fixedly connected to the piston rod of the multi-stage cylinder 22. A slot 161 for inserting the locking block 23 is provided on the central top block 16. A pair of telescopic holes 162 are provided inside the slot 161. A pair of sliding grooves 24 corresponding to the telescopic holes 162 are provided on the locking block 23. A return spring 25 is provided inside each of the sliding grooves 24. The return spring 25 causes the locking block 23 to be inserted into the slot 161. At this time, the locking rod 26 will be automatically inserted into the telescopic hole 162 by the elastic thrust of the return spring 25. One end of the return spring 25 is fixedly connected to the inner wall of the slide groove 24, and the other end of the return spring 25 is fixedly connected to the locking rod 26 inserted into the slot 161. The end of the locking rod 26 away from the return spring 25 is set as a ball plug. The ball plug serves as a guide to ensure that the end of the locking rod is inserted into the telescopic hole 162 more smoothly.
[0030] It is worth noting that, such as Figure 1 and Figure 2As shown, a pair of mounting plates 21 are fixedly connected to the bottom outer wall of the support 2. A pair of bolts 211 are provided on the upper surface of the mounting plate 21. The bolts 211 are used to securely install the mounting plate 21 on the upper surface of the cockpit 1 and to facilitate disassembly and assembly.
[0031] In this embodiment, when using the roadway floor heave control device, if the canopy 13 needs to be adjusted according to the driver's height, it is only necessary to activate the multi-stage cylinder 22 inside the support 2. The piston rod of the multi-stage cylinder 22 drives the central top block 16 to move up and down through the locking insert 23, and the central top block 16 drives the canopy 13 to move up and down through a pair of L-shaped brackets 15. Ultimately, the canopy 13 causes the ends of the telescopic frames 12 on both sides to slide within the support sleeve 11, so that the height of the canopy 13 after adjustment on the cab 1 can adapt to drivers of different heights.
[0032] When encountering a lower section in the tunnel, simply activate the multi-stage cylinder 22 to move its piston rod downwards, allowing the roof 13 to pass smoothly through the lower section. If the roof 13, even at its lowest height on the cab 1, still cannot pass through the lower section, simply pinch a pair of locking rods 26 into the telescopic hole 162, causing them to engage with the slide groove 24. Then, lifting the roof 13 will disengage the central top block 16 from the top of the locking block 23, allowing the end of the telescopic frame 12 to disengage from the corresponding support sleeve 11. This results in a lower cab 1 after disassembly, enabling passage through lower sections. When the cab 1 moves into a higher section, the roof 13 can be quickly and easily reinstalled on top of the cab 1.
[0033] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A device for treating roadway floor heave, comprising a driver's cab (1) and a canopy (13) disposed on the top of the driver's cab (1), characterized in that, Also includes: Multiple support sleeves (11) are fixedly connected to the upper surface of the cockpit (1), and telescopic frames (12) with their ends inserted into the corresponding support sleeves (11) are fixedly connected to both sides of the canopy (13). The lifting mechanism is installed on the upper surface of one end of the cockpit (1) to drive the roof (13) to move up and down; A connecting mechanism is provided at the connection between the lifting mechanism and the roof (13) to allow the roof (13) to detach from the top of the cockpit (1).
2. The device for treating roadway floor heave according to claim 1, characterized in that, The lifting mechanism includes a support (2) connected to the upper surface of the cockpit (1). A multi-stage cylinder (22) is fixedly connected inside the support (2). A pair of L-shaped brackets (15) are fixedly connected to the lower surface of the canopy (13). A central top block (16) is also fixedly connected to the lower surface of the canopy (13). The central top block (16) is fixedly connected to the end of the L-shaped bracket (15). The central top block (16) is also connected to the piston rod of the support (2).
3. The device for treating roadway floor heave according to claim 2, characterized in that, The connecting mechanism includes a locking block (23) fixedly connected to the piston rod of the multi-stage cylinder (22). The central top block (16) has a slot (161) for the locking block (23) to be inserted. The slot (161) has a pair of telescopic holes (162) inside. The locking block (23) has a pair of sliding grooves (24) corresponding to the telescopic holes (162). The sliding grooves (24) are all provided with return springs (25) inside. One end of the return springs (25) is fixedly connected to the inner wall of the sliding grooves (24). The other end of the return springs (25) is fixedly connected to a locking rod (26) inserted into the slot (161).
4. The device for treating roadway floor heave according to claim 3, characterized in that, The end of the locking rod (26) away from the return spring (25) is configured as a ball plug.
5. A device for treating roadway floor heave according to claim 2, characterized in that, A pair of mounting plates (21) are fixedly connected to the bottom outer wall of the support (2), and a pair of bolts (211) are provided on the upper surface of the mounting plate (21).
6. The device for treating roadway floor heave according to claim 2, characterized in that, A seat (14) is fixedly connected to the upper surface of the cockpit (1) near the support (2).
7. A device for treating roadway floor heave according to claim 2, characterized in that, Both of the L-shaped brackets (15) are symmetrically arranged with the central top block (16) as the center.