Underground semi-closed prying trolley cab

By designing the lifting and adjusting column assembly and side protective door assembly of the semi-enclosed skid trolley cab in the mine, the problems of limited visibility and stuffiness inside the cabin have been solved, enabling adaptive adjustment of visibility and air circulation, thus improving the safety and practicality of the skid trolley.

CN224029102UActive Publication Date: 2026-03-24JINCHUAN GRP MACHINERY MFG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The existing skid trolley cab has limited visibility when facing high mining faces, affecting work efficiency; the fully enclosed door makes the cabin stuffy and requires the installation of air conditioning, increasing energy consumption, and it is difficult to open in narrow tunnels, which violates the safety and practicality requirements of skid operations.

Method used

A semi-enclosed skid trolley cab for underground mining was designed. It adopts a linkage design of lifting and adjusting column assembly, hinge plate, hinge seat and front protection assembly with the roof to achieve adaptive adjustment of tilt height. Combined with the semi-enclosed side protection driver's door assembly and front protection assembly, it provides effective protection and air circulation and avoids obstruction when opening the door.

Benefits of technology

It enables adaptive adjustment of the operating field of view under different working conditions, reduces the temperature inside the cabin, reduces reliance on air conditioning equipment, improves operational safety and practicality, and adapts to the needs of working in narrow alleyways.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224029102U_ABST
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Abstract

The utility model relates to the technical field of prying trolleys, in particular to an underground semi-closed prying trolley cab. The two connecting pieces are arranged on the lower side of the ceiling in a spaced mode; the rear stand columns are hinged to the lower ends of the connecting pieces; the two lifting adjusting stand column assemblies are arranged on the upper side of the U-shaped navigation bridge; the hinge plates are hinged to the upper ends of the lifting adjusting stand column assemblies; the hinged seats are hinged to one ends of the hinged plates, the front protection assemblies are arranged on the outer sides of the two hinged plates, and the side protection driving door assemblies are arranged between the rear stand columns and the lifting adjusting stand column assemblies on the same side. View and protection can be flexibly adjusted according to underground working conditions, the semi-closed side protection driving door can block splash, promote ventilation and cooling and reduce energy consumption, the problem of opening a door in a narrow roadway can be solved, and safety and practicability are both considered.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pry the technical field of platform car, concretely is a kind of underground semi-enclosed pry the platform car cab. BACKGROUND

[0002] Underground mine construction scene, pry the platform car is the core equipment of guaranteeing roadway safety, mainly undertakes top floatstone detection pry and crushing task.After blasting operation, rock is subjected to impact force, and the rubble of roadway top and side wall is prone to loosen, and form the hidden danger of floating rock hanging in the air.These unstable rock mass if not timely cleaning, in subsequent mining cycle can fall at any time, seriously threaten the life safety of on-site personnel and equipment normal operation, so hidden danger must be excluded by relying on pry the platform car, and build safety defense line for mine operation.

[0003] Currently, conventional pry the platform car cab is equipped with fixed roof, front protection assembly and fully-enclosed driving door for fly rock protection.However, fixed protection structure when facing higher mine working face, the field of vision of operator is limited, and the operation efficiency is affected;Although fully-enclosed driving door can resist fly rock, but it leads to poor air circulation and temperature rise in the cab, and additional installation of air conditioning equipment is often needed, which increases energy consumption and cost.In addition, when operating in narrow roadway, it is difficult to open the fully-enclosed door, and the particularity of pry operation requires the operator to minimize the frequency of leaving the cab, which poses challenges to the safety and practicability of existing equipment. UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of underground semi-enclosed pry the platform car cab, to solve the existing pry the platform car cab, when facing high working face, fixed structure obstructs field of vision, reduces operation efficiency;Although fully-enclosed driving door can prevent fly rock, but it leads to stuffy cabin, and additional installation of air conditioning equipment is needed, which increases energy consumption and cost, and it is difficult to open in narrow roadway, and the requirement of pry operation is that personnel minimize off-duty, which seriously restricts the safety and practicability of equipment.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of underground semi-enclosed pry the platform car cab, including U-shaped driving platform, further including roof, which is horizontally overlaid on the top of U-shaped driving platform, two connecting pieces, which are arranged at the lower side of roof and are spaced apart, rear stand, which is hinged to the lower end of connecting piece, two lifting adjustment stand assemblies, which are arranged at the upper side of U-shaped driving platform and are spaced apart, hinged plate, which is hinged to the one end of hinged seat and the upper end of lifting adjustment stand assembly, hinged seat, which is hinged to the one end of hinged plate, front protection assembly, which is arranged at the outer side of two hinged plates, and side protection driving door assembly, which is arranged between rear stand and lifting adjustment stand assembly on the same side, two side protection driving door assemblies are symmetrically arranged;The one end of hinged seat is connected to the lower side of roof, and two hinged seats are spaced apart from two connecting pieces.

[0006] Furthermore, the side protection driving door assembly includes a movable door hinged to one side of the lifting and adjusting column assembly, a connecting plate on one side of the rear column, an L-shaped mounting column connected to one side of the connecting plate, a fixed door connected to the outer side of one side of the L-shaped mounting column, a door baffle on the inner side of the fixed door, and a locking door handle mechanism on the inner side of the movable door and cooperating with the door baffle. One side of the movable door and one side of the fixed door are tightly fitted to form a protective plane, and the two are located on the same horizontal line. The door baffle protrudes outward from the side of the fixed door, and the outer side of the door baffle is fitted to the inner side of the movable door.

[0007] Furthermore, the movable door is provided with an arc-shaped through-hole; the locking door handle mechanism includes a pad plate on the inner side of the movable door, a washer on one side of the pad plate, an L-shaped door handle on one side of the washer, an outer handle on one side of the vertical part of the L-shaped door handle, and a hand pin on the outer handle that passes through the washer and is rotatably connected to the pad plate. One end of the outer handle passes through the arc-shaped through-hole and extends to the outer side of the movable door. The outer handle slides in conjunction with the arc-shaped through-hole. The horizontal part of the L-shaped door handle is in contact with the inner side of the door stop.

[0008] Furthermore, the lifting and adjusting column assembly includes a hollow front column located on the upper side of the U-shaped driver's platform, a hydraulic cylinder located on the lower side inside the hollow front column, and an inner cylinder connected to the output end of the hydraulic cylinder. The upper end of the inner cylinder is hinged to the other end of the hinge plate, and the movable door is connected to one side of the hollow front column via a hinge.

[0009] Furthermore, the upper side of the U-shaped driver's cab is provided with an intelligent seat bracket, the outer side of one of the rear pillars is provided with a fire extinguisher bracket, the outer side of the other rear pillar is provided with an automatic fire extinguishing system master switch mounting plate, the upper side of the U-shaped driver's cab is provided with mounting platforms spaced apart from the intelligent seat bracket, the upper side of the mounting platforms is provided with a vehicle control box, the inner side of one of the movable doors is provided with a 360 system display mounting plate, the inner side of one of the hollow front pillars is provided with a pressure gauge bracket, and the lower side of the roof is provided with a strobe light mounting bracket.

[0010] Furthermore, the front protective assembly includes a connecting plate, inclined side plates respectively connected to both sides of the connecting plate, vertical baffles connected to the lower ends of the two inclined side plates, a plurality of longitudinal strip plates arranged laterally between the connecting plate and the vertical baffles, and a plurality of transverse connecting rods arranged longitudinally between the two inclined side plates. The plurality of transverse connecting rods all pass through the plurality of longitudinal strip plates and intersect to form a protective mesh; the two inclined side plates are respectively connected to one side of the two hinge plates.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. During underground operations, this utility model achieves adaptive adjustment of tilt height through the linkage design of the lifting and adjusting column assembly, hinge plate, hinge seat, front protection assembly and roof, which not only ensures that the operator can adjust the operating field of vision according to different working conditions, but also provides effective protection in different working scenarios.

[0013] 2. During operation, the semi-enclosed side protection driver's door assembly works in conjunction with the front protection assembly. The front protection assembly intercepts flying rocks, while the side protection driver's door assembly, through a combination of fixed and movable doors, blocks side-mounted debris while allowing a single movable door to open. This semi-enclosed design breaks through the limitations of traditional fully enclosed cabs, not only reducing the cabin temperature and reliance on air conditioning, but also avoiding the problem of obstructed door opening in narrow passages, thus balancing safety and practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the driver's cab of the underground semi-enclosed skid trolley of this utility model.

[0015] Figure 2 This is a side view of the driver's cab of the semi-enclosed underground skid trolley of this utility model.

[0016] Figure 3 This is a front sectional view of the driver's cab of the underground semi-enclosed skid trolley of this utility model.

[0017] Figure 4 This is a side view of the cab of the semi-enclosed skid trolley for underground mining, which is a schematic diagram of this utility model.

[0018] In the diagram: 1. Driver's cab; 2. Rear pillar; 3. Connector; 4. Front protective assembly; 5. Roof; 6. Hinge plate; 7. Hinge seat; 8. Hollow front pillar; 9. Hydraulic cylinder; 10. Inner cylinder; 11. Fixed door; 12. L-shaped mounting post; 13. Connecting plate; 14. L-shaped door handle; 15. Door stop; 16. Sliding door; 17. Pad; 18. Gasket; 19. Hand pin; 20. Arc-shaped through-hole; 21. Outer handle; 22. 23. Intelligent seat bracket; 24. Fire extinguisher bracket; 25. Flashing light mounting bracket; 26. Vehicle control box; 27. Automatic fire extinguishing system main switch mounting plate; 28. 360 system display mounting plate; 29. ​​Pressure gauge bracket; 30. Inclined side plate; 31. Vertical baffle; 32. Longitudinal strip plate; 33. Transverse connecting rod; 34. Lifting and adjusting column assembly; 35. Side protection driver's door assembly; 36. Connecting plate; 37. Mounting platform. Detailed Implementation

[0019] Please see Figures 1-4A semi-enclosed skid trolley cab for underground mining includes a U-shaped cab 1, a canopy 5 horizontally covering the top of the U-shaped cab 1, two connecting pieces 3 spaced apart and connected to the lower side of the canopy 5, a rear column 2 hinged to the lower end of the connecting piece 3, two lifting and adjusting column assemblies 33 spaced apart and located on the upper side of the U-shaped cab 1, a hinge plate 6 hinged to the upper end of the lifting and adjusting column assembly 33, a hinge seat 7 hinged to one end of the hinge plate 6, a front protective assembly 4 located outside the two hinge plates 6, and a side protective driver's door assembly 34 located between the rear column 2 and the lifting and adjusting column assembly 33 on the same side. The two side protective driver's door assemblies 34 are symmetrically arranged. One end of the hinge seat 7 is connected to the lower side of the canopy 5, and the two hinge seats 7 are spaced apart from the two connecting pieces 3.

[0020] The side protection driver's door assembly 34 includes a movable door 16 hinged to one side of the lifting and adjusting column assembly 33, a connecting plate 13 connected to one side of the rear column 2, an L-shaped mounting column 12 connected to one side of the connecting plate 13, a fixed door 11 connected to the outer side of one side of the L-shaped mounting column 12, a door baffle 15 connected to the inner side of the fixed door 11, and a locking door handle mechanism provided on the inner side of the movable door 16 and cooperating with the door baffle 15. One side of the movable door 16 and one side of the fixed door 11 are tightly fitted to form a protective plane, and the two are located on the same horizontal line. The door baffle 15 protrudes outward from the side of the fixed door 11, and the outer side of the door baffle 15 is fitted with the inner side of the movable door 16. The movable door 16 is provided with an arc-shaped through-hole 20; the locking door handle mechanism includes a pad 17 connected to the inner side of the movable door 16 by four bolts, a washer 18 attached to one side of the pad 17, an L-shaped door handle 14 attached to one side of the washer 18, an outer handle 21 connected to one side of the vertical part of the L-shaped door handle 14, and a hand pin 19 connected to the outer handle 21 and passing through the washer 18 and rotatably connected to the pad 17. One end of the outer handle 21 passes through the arc-shaped through-hole 20 and extends to the outer side of the movable door 16, and the outer handle 21 slides in conjunction with the arc-shaped through-hole 20; the horizontal part of the L-shaped door handle 14 is attached to the inner side of the door stop 15. The movable door 16 and the fixed door 11 are tightly fitted to form a protective plane; the design of the arc-shaped through-hole 20 and the locking door handle mechanism allows the operator to drive the L-shaped door handle 14 to engage or disengage from the door stop 15 by sliding the outer handle 21 along an arc-shaped trajectory.

[0021] The lifting and adjusting column assembly 33 includes a hollow front column 8 installed on the upper side of the U-shaped cab 1, a hydraulic cylinder 9 installed on the lower side inside the hollow front column 8, and an inner cylinder 10 connected to the output end of the hydraulic cylinder 9. The upper end of the inner cylinder 10 is hinged to the other end of the hinge plate 6. The movable door 16 is connected to one side of the hollow front column 8 via a hinge. Through the arrangement of the hollow front column 8, hydraulic cylinder 9, and inner cylinder 10, the height of the cab roof 5 and the front protective assembly 4 can be adjusted, which can adapt to mining face operations at different heights and provide visibility for the operator.

[0022] A smart seat bracket 22 for installing a smart seat is welded to the upper side of the U-shaped cab 1, allowing the smart seat to be installed in the semi-enclosed skid trolley cab underground, serving as the control system for the entire vehicle. A fire extinguisher bracket 23 for installing a fire extinguisher is welded to the outer side of one rear column 2, allowing the fire extinguisher to be installed in the semi-enclosed skid trolley cab underground for easy emergency fire suppression. An automatic fire extinguishing system master switch mounting plate 26 for installing the automatic fire extinguishing system master switch is welded to the outer side of the other rear column 2, allowing the automatic fire extinguishing system master switch to be installed in the semi-enclosed skid trolley cab underground for easy automatic fire suppression in emergencies. Mounting platforms 36, spaced apart from the smart seat bracket 22, are welded to the upper side of the U-shaped cab 1. A driving control box 25 for installing the electrical components of the vehicle's driving system is welded to the upper side of the mounting platform 36, allowing the vehicle's driving system to be installed. The electrical components are installed in the driver's cab of the semi-enclosed trolley in the mine, serving as the control system for the entire vehicle's movement. A 360-degree system display mounting plate 27 is welded to the inside of an movable door 16, allowing the 360-degree system display to be installed in the driver's cab of the semi-enclosed trolley in the mine. This allows the display to receive information from the vehicle's camera in real time, facilitating real-time observation of the vehicle's surroundings. A pressure gauge bracket 28 is welded to the inside of a hollow front pillar 8, allowing the pressure gauge to be installed in the driver's cab of the semi-enclosed trolley in the mine. This enables real-time observation of the actual hydraulic pressure of each action during the operation of the entire working system. A strobe light mounting bracket 24 is welded to the lower side of the ceiling 5, allowing the strobe light to be installed in the driver's cab of the semi-enclosed trolley in the mine. This enables the strobe light to issue a driving alarm signal in real time.

[0023] The front protective assembly 4 includes a connecting plate 35, inclined side plates 29 welded to both sides of the connecting plate 35, vertical baffles 30 welded to the lower ends of the two inclined side plates 29, multiple longitudinal strip plates 31 welded between the connecting plate 35 and the vertical baffles 30 and arranged laterally, and multiple transverse connecting rods 32 welded between the two inclined side plates 29 and arranged longitudinally. The multiple transverse connecting rods 32 all pass through the multiple longitudinal strip plates 31 and intersect to form a protective mesh. The two inclined side plates 29 are respectively connected to one side of the two hinged plates 6. Its crisscrossing protective mesh structure, formed by the intersection of multiple longitudinal strip plates 31 and multiple transverse connecting rods 32, can disperse and buffer the impact force of flying rocks generated by blasting, preventing flying debris from directly impacting the cab and providing a physical protective barrier for the operator. At the same time, while ensuring protective strength, the mesh structure maintains ventilation and light transmission, avoiding the vision obstruction and stuffiness problems caused by a fully enclosed structure, ensuring that the operator has a good working view and a comfortable environment.

[0024] Working process and principle: Before underground operation, the operator can drive the inner cylinder 10 to extend and retract through the hydraulic cylinder 9 in the two lifting and adjusting column assemblies 33 according to the height of the mine face. This will drive the two hinge plates 6 and hinge seats 7 to move, which in turn will drive the front protection assembly 4 and the roof 5 to move. At the same time, the front protection assembly 4 achieves adaptive adjustment of tilt height through the connection between the inclined side plate 29 and the hinge plate 6. This ensures that the operator can adjust the operating field of vision according to different working conditions and provides effective protection in different working scenarios.

[0025] During operation, the semi-enclosed side protection driver's door assembly 34 and the front protection assembly 4 work together to deflect flying rocks while allowing air circulation in the driver's cab, preventing overheating due to the enclosed space. Through the fixed door 11 and the movable door 16, in narrow passages, only the movable door 16 can be opened to deflect flying rocks from the side, and the semi-enclosed design improves the accident escape rate. When opening the movable door 16, the operator can pull the outer handle 21, sliding it along the arc-shaped through-hole 20 on the movable door 16, causing the L-shaped door handle 14 to rotate, releasing the locking state against the door baffle 15, and thus opening the movable door 16. Therefore, this semi-enclosed cab reduces the need for air conditioning while ensuring personnel safety, and avoids the problem of fully enclosed doors being difficult to open in narrow passages.

[0026] In terms of protection, the crisscrossing grid structure of the front protective assembly 4 can block flying rocks after blasting. In addition, the intelligent seat bracket 22, the driving control box 25, and other equipment integrated on the U-shaped cab 1, as well as the strobe light mounting bracket 24 under the roof 5, realize the intelligent layout of the equipment, ensuring that operators can complete efficient operations and safety warnings in the cab without having to leave the cab for operational needs, thus improving the safety and convenience of underground operations.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A semi-enclosed skid trolley cab for underground mining, comprising a U-shaped cab (1), characterized in that, It also includes a canopy (5) that is horizontally covering the top of the U-shaped driver's cab (1), two connectors (3) arranged at intervals on the lower side of the canopy (5), a rear column (2) hinged to the lower end of the connector (3), two lifting and adjusting column assemblies (33) arranged at intervals on the upper side of the U-shaped driver's cab (1), a hinge plate (6) hinged to the upper end of the lifting and adjusting column assembly (33), a hinge seat (7) hinged to one end of the hinge plate (6), and a front protection assembly (4) arranged on the outside of the two hinge plates (6), and a side protection driver's door assembly (34) arranged between the rear column (2) and the lifting and adjusting column assembly (33) on the same side, with the two side protection driver's door assemblies (34) arranged symmetrically; one end of the hinge seat (7) is connected to the lower side of the canopy (5), and the two hinge seats (7) are arranged at intervals with the two connectors (3).

2. The skid trolley cab according to claim 1, characterized in that, The side protection driving door assembly (34) includes a movable door (16) hinged to one side of the lifting and adjusting column assembly (33), a connecting plate (13) on one side of the rear column (2), an L-shaped mounting column (12) connected to one side of the connecting plate (13), a fixed door (11) connected to the outer side of one side of the L-shaped mounting column (12), a door baffle (15) on the inner side of the fixed door (11), and a locking door handle mechanism on the inner side of the movable door (16) and cooperating with the door baffle (15). One side of the movable door (16) and one side of the fixed door (11) are tightly fitted to form a protective plane, and the two are located on the same horizontal line. The door baffle (15) protrudes outward from the side of the fixed door (11), and the outer side of the door baffle (15) is fitted with the inner side of the movable door (16).

3. The skid trolley cab according to claim 2, characterized in that, The movable door (16) is provided with an arc-shaped through-hole (20); the locking door handle mechanism includes a pad (17) provided on the inside of the movable door (16), a pad (18) provided on one side of the pad (17), an L-shaped door handle (14) provided on one side of the pad (18), an outer handle (21) provided on one side of the vertical part of the L-shaped door handle (14), and a hand pin (19) provided on the outer handle (21) and passing through the pad (18) and rotatably connected to the pad (17). One end of the outer handle (21) passes through the arc-shaped through-hole (20) and extends to the outside of the movable door (16). The outer handle (21) slides in cooperation with the arc-shaped through-hole (20). The horizontal part of the L-shaped door handle (14) is in contact with the inside of the door baffle (15).

4. The skid trolley cab according to claim 2, characterized in that, The lifting and adjusting column assembly (33) includes a hollow front column (8) located on the upper side of the U-shaped driver's cab (1), a hydraulic cylinder (9) located on the lower side inside the hollow front column (8), and an inner cylinder (10) connected to the output end of the hydraulic cylinder (9). The upper end of the inner cylinder (10) is hinged to the other end of the hinge plate (6), and the movable door (16) is connected to one side of the hollow front column (8) by a hinge.

5. The skid trolley cab according to claim 4, characterized in that, The upper side of the U-shaped driver's cab (1) is provided with a smart seat bracket (22), the outer side of one of the rear pillars (2) is provided with a fire extinguisher bracket (23), the outer side of the other rear pillar (2) is provided with an automatic fire extinguishing system main switch mounting plate (26), the upper side of the U-shaped driver's cab (1) is provided with a mounting platform (36) spaced apart from the smart seat bracket (22), the upper side of the mounting platform (36) is provided with a driving control box (25), the inner side of one of the movable doors (16) is provided with a 360 system display mounting plate (27), the inner side of one of the hollow front pillars (8) is provided with a pressure gauge bracket (28), and the lower side of the ceiling (5) is provided with a flashing light mounting bracket (24).

6. The skid trolley cab according to claim 1, characterized in that, The front protective assembly (4) includes a connecting plate (35), inclined side plates (29) respectively connected to both sides of the connecting plate (35), vertical baffles (30) connected to the lower ends of the two inclined side plates (29), a plurality of longitudinal strip plates (31) arranged horizontally between the connecting plate (35) and the vertical baffles (30), and a plurality of transverse connecting rods (32) arranged longitudinally between the two inclined side plates (29). The plurality of transverse connecting rods (32) all pass through the plurality of longitudinal strip plates (31) and intersect to form a protective grid; the two inclined side plates (29) are respectively connected to one side of the two hinge plates (6).