Movable air compression device for tunnel

Abstract

The utility model discloses a movable air compression device for a tunnel, which comprises an air compressor main body, a displacement mechanism convenient to move is arranged at the bottom of the air compressor main body, and a chock mechanism for limiting the displacement mechanism and an adjusting mechanism for adjusting the position of the chock mechanism are arranged below the displacement mechanism; the air compressor body can be moved to be close to the tunnel face at any time through the displacement mechanism, a traditional long-distance ventilation pipeline in the tunnel is not needed, the purchasing cost of the ventilation pipeline is reduced, and air pipe air leakage caused by long-distance pipeline ventilation is also reduced; structural components of the chock mechanism and the adjusting mechanism are designed not to extend towards the outer edge of the air compressor body, the space at the bottom of the displacement mechanism can be fully utilized, the position of the displacement mechanism is fixed in the limited space, and therefore the whole movable air compression device for the tunnel is small in occupied space, compact in structure and high in practicability. An air compression station does not need to be built, land acquisition and investment of a site are reduced, and meanwhile moving and transferring are convenient.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to a portable air compressor device for tunnels. Background Technology

[0002] During tunnel drilling, pneumatic rock drills are used. These drills require an air compressor to operate. Currently, the air compressors commonly used in tunnels are mainly stationary types, installed in fixed locations (at the tunnel entrance or inside) to provide a continuous and stable air supply to the tunnel. These compressors occupy a large area and require an air storage tank with a capacity of approximately 2 cubic meters. 3 It is a special type of equipment that requires external power supply and cannot be moved flexibly.

[0003] Patent document CN222798604U discloses an air compressor and a tunnel boring machine (TBM) for underpass tunnel construction. The air compressor features a support and base beneath it. A lifting mechanism within the support adjusts the height of the base. When the air compressor needs to be moved, the base can be raised, extending the casters through openings in the base for easy movement. During operation, the base can be lowered, retracting the casters. Anti-slip pads beneath the base provide stability. The structure is simple and practical. The support, pillars, and casters facilitate easy relocation while improving stability during use, making it worthy of widespread adoption.

[0004] Although the air compressor used in the tunnel boring machine (TBM) construction mentioned above can solve the corresponding technical problems, the lifting of its base is mainly driven by the first gear, the second gear, and the movable ring. Since the movable ring is ring-shaped and drives multiple rotating drums to rotate synchronously, a larger diameter movable ring is required. This results in a larger support size to provide room for the movable ring to move, making the whole machine larger and requiring more space, which is not conducive to saving operating space.

[0005] To address this, a portable air compressor for tunnels is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a portable air compression device for tunnels, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A portable air compressor for tunnels, comprising:

[0009] The air compressor body has a displacement mechanism at its bottom for easy movement. Below the displacement mechanism are a wheel stop mechanism for limiting its movement and an adjustment mechanism for adjusting the position of the wheel stop mechanism.

[0010] The displacement mechanism includes a mobile vehicle installed at the bottom of the air compressor body, and a suspension frame for use with a tractor is fixedly connected to one side of the bottom of the mobile vehicle.

[0011] Both the wheel chock mechanism and the adjustment mechanism are located between the four tires of the mobile vehicle. The wheel chock mechanism is arranged in a rectangular array of four, and there is a one-to-one correspondence between the wheel chock mechanism and the tires of the mobile vehicle. The adjustment mechanism can drive the four wheel chock mechanisms to move synchronously.

[0012] As a preferred technical solution, the wheel stop mechanism includes a stop block, and a rubber sleeve is fixedly connected to the surface of the stop block. The rubber sleeve wraps around the side of the stop block facing the moving vehicle tire and the bottom.

[0013] As a preferred technical solution, both the stop block and the rubber sleeve have an arc surface on the side facing the moving vehicle tire, and the arc surface is adapted to the outer diameter of the moving vehicle tire.

[0014] As a preferred technical solution, the adjustment mechanism includes two connecting rods arranged along the axle direction of the moving vehicle. The two ends of the connecting rods are respectively fixedly connected to two adjacent stops. The bottom of the moving vehicle is provided with a single-head electric push rod, and the output end of the single-head electric push rod is provided with a double-head electric push rod. The two output ends of the double-head electric push rod are respectively fixedly connected to two connecting rods.

[0015] As a preferred technical solution, the bottom of the mobile vehicle is provided with a receiving cavity, and the single-head electric push rod is installed in the receiving cavity.

[0016] As a preferred technical solution, a protective shell is fixedly sleeved on the surface of the dual-head electric actuator, and the top of the protective shell is fixedly connected to the output end of the single-head electric actuator.

[0017] As a preferred technical solution, two symmetrical L-shaped plates are movably provided on the side of the connecting rod away from the tire of the mobile vehicle. The L-shaped plates are movably provided at the bottom of the mobile vehicle. The side and top surfaces of the outer surfaces of the L-shaped plates are respectively provided with sliding grooves. A slider is slidably connected to the inner cavity of the sliding groove on the side. One side of the slider is fixedly connected to the connecting rod.

[0018] As a preferred technical solution, both sides of the bottom of the mobile vehicle are fixedly connected with slide bars arranged along the axis of the double-headed electric push rod, and the two ends of the slide bars are respectively slidably connected to the inner wall of the corresponding slide groove located on the top surface.

[0019] As a preferred technical solution, the cross-sections of the groove, slider, and slide bar are all T-shaped.

[0020] As a preferred technical solution, a reinforcing plate is fixedly connected to the inner wall of the L-shaped plate, and the reinforcing plate has a triangular structure.

[0021] This utility model has at least the following beneficial effects:

[0022] This application utilizes a displacement mechanism that allows the air compressor body to be moved close to the tunnel face at any time, eliminating the need for traditional long-distance ventilation ducts inside the tunnel. This reduces the purchase cost of ventilation ducts and also reduces air leakage caused by long-distance ductwork. The design of both the wheel stop mechanism and the adjustment mechanism, which do not extend to the outer edge of the air compressor body, fully utilizes the space at the bottom of the displacement mechanism. This allows for precise positioning of the displacement mechanism within a limited space, resulting in a compact and space-saving mobile air compressor unit for the entire tunnel. It eliminates the need for an air compressor station, reducing land acquisition and investment while facilitating movement and transport. Furthermore, the adjustment mechanism allows for the adjustment of the wheel stop mechanism's position, enabling it to be moved away from the ground and the displacement mechanism's wheels when not in use. This ensures that the wheel stop mechanism and the displacement mechanism do not interfere with each other, guaranteeing normal movement of the displacement mechanism within the tunnel and adapting to complex terrain during tunnel construction. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the wheel stop mechanism of this utility model in its use state;

[0024] Figure 2 This is a three-dimensional structural diagram of the wheel stop mechanism of this utility model in an unused state;

[0025] Figure 3 This is a front view schematic diagram of the wheel stop mechanism of this utility model in its use state;

[0026] Figure 4 This is a front view schematic diagram of the wheel stop mechanism of this utility model in an unused state;

[0027] Figure 5 This is a three-dimensional structural diagram of the wheel stop mechanism and adjustment mechanism of this utility model.

[0028] In the diagram: 100, air compressor body; 200, displacement mechanism; 210, moving vehicle; 220, suspension frame; 300, wheel stop mechanism; 310, stop block; 320, rubber sleeve; 400, adjustment mechanism; 410, connecting rod; 420, single-head electric push rod; 430, double-head electric push rod; 440, protective shell; 450, L-shaped plate; 460, slide groove; 470, slider; 480, slide bar; 490, reinforcing plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 This utility model provides a portable air compressor device for tunnels, including an air compressor body 100, a movable displacement mechanism 200, a wheel stop mechanism 300 for limiting the displacement mechanism 200, and an adjustment mechanism 400 for adjusting the position of the wheel stop mechanism 300. The displacement mechanism 200 is located at the bottom of the air compressor body 100, and the wheel stop mechanism 300 and the adjustment mechanism 400 are both located below the displacement mechanism 200. The displacement mechanism 200 includes a mobile vehicle 210 installed at the bottom of the air compressor body 100, and a suspension frame 220 for use with a tractor is fixedly connected to one side of the bottom of the mobile vehicle 210.

[0031] Both the wheel chock mechanism 300 and the adjustment mechanism 400 are located between the four tires of the mobile vehicle 210. The four wheel chock mechanisms 300 are arranged in a rectangular array, and there is a one-to-one correspondence between the wheel chock mechanism 300 and the tires of the mobile vehicle 210. The adjustment mechanism 400 can drive the four wheel chock mechanisms 300 to move synchronously so that the wheel chock mechanisms 300 are away from the ground and the tires of the mobile vehicle 210.

[0032] It should be noted that the air compressor body 100 mentioned above can adopt a novel integrated two-stage compressed air compressor with dual permanent magnet motors disclosed in the existing announcement number CN207048991U. This eliminates the intermediate connection link of the coupling, resulting in a more compact structure, reduced connection losses, and more efficient transmission. In addition, it uses two small frequency converters for independent control, which is cheaper than using a large frequency converter, giving it a price advantage and saving production costs.

[0033] The wheel chock mechanism 300 includes a wedge-shaped stop block 310. A rubber sleeve 320 is fixedly connected to the surface of the stop block 310. The rubber sleeve 320 wraps around the side of the stop block 310 facing the tire of the mobile vehicle 210 and the bottom. By placing the stop block 310 at the tire position of the mobile vehicle 210, the mobile vehicle 210 can be prevented from moving accidentally. The rubber sleeve 320 can enhance the grip of the wheels of the mobile vehicle 210 and the ground, while also preventing the stop block 310 from directly contacting the ground and wearing out, which helps to extend the service life of the wheel chock mechanism 300.

[0034] Both the stop block 310 and the rubber sleeve 320 have an arc surface on the side facing the tire of the moving vehicle 210. The arc surface is adapted to the outer diameter of the tire of the moving vehicle 210 so that the rubber sleeve 320 can fully fit the tire surface of the moving vehicle 210 when limiting the tire of the moving vehicle 210, which helps to improve the position fixation effect of the moving vehicle 210.

[0035] The adjustment mechanism 400 includes two connecting rods 410 arranged along the axis of the mobile vehicle 210. The two ends of the connecting rods 410 are fixedly connected to two adjacent stops 310 respectively. A single-head electric push rod 420 is vertically arranged at the bottom of the mobile vehicle 210. The output end of the single-head electric push rod 420 is provided with a horizontally arranged double-head electric push rod 430. The two output ends of the double-head electric push rod 430 are fixedly connected to the two connecting rods 410 respectively. By activating the double-head electric push rod 430, the wheel stop mechanism 300 can be moved horizontally to achieve the purpose of the wheel stop mechanism 300 moving closer to or away from the tires of the mobile vehicle 210. By activating the single-head electric push rod 420, the double-head electric push rod 430 and the wheel stop mechanism 300 can be moved vertically to achieve the purpose of the wheel stop mechanism 300 moving closer to or away from the ground.

[0036] The bottom of the mobile vehicle 210 has a receiving cavity, in which a single-headed electric push rod 420 is installed. The receiving cavity provides installation space for the single-headed electric push rod 420, so as to keep the connecting rod 410, the double-headed electric push rod 430 and the wheel stop mechanism 300 as far away from the ground as possible.

[0037] The surface of the double-headed electric push rod 430 is fixedly fitted with a protective shell 440. The top of the protective shell 440 is fixedly connected to the output end of the single-headed electric push rod 420. The protective shell 440 can protect the double-headed electric push rod 430 and prevent the surface of the double-headed electric push rod 430 from colliding with stones or objects on the ground during the movement of the displacement mechanism 200, which would cause damage.

[0038] Two symmetrical L-shaped plates 450 are movably mounted on the side of the connecting rod 410 away from the tires of the moving vehicle 210. The L-shaped plates 450 are movably mounted at the bottom of the moving vehicle 210. The side and top surfaces of the outer surfaces of the L-shaped plates 450 are respectively provided with grooves 460. A slider 470 is slidably connected to the inner cavity of the groove 460 on the side. One side of the slider 470 is fixedly connected to the connecting rod 410. When the output end of the single-head electric push rod 420 drives the double-head electric push rod 430, the protective shell 440, the connecting rod 410 and the wheel stop mechanism 300 to move vertically, the connecting rod 410 can drive the slider 470 to slide in the inner cavity of the groove 460, which can guide the connecting rod 410 and the wheel stop mechanism 300 so that the wheel stop mechanism 300 can move vertically stably.

[0039] The bottom of the mobile vehicle 210 is fixedly connected to two sides of a slide bar 480 arranged along the axial direction of the double-headed electric push rod 430. The two ends of the slide bar 480 are slidably connected to the inner wall of the corresponding slide groove 460 on the top surface. When the double-headed electric push rod 430 drives the connecting rod 410 and the wheel stop mechanism 300 to move horizontally, the connecting rod 410 can drive the L-shaped plate 450 to slide on the surface of the slide bar 480, which can guide the wheel stop mechanism 300 so that the wheel stop mechanism 300 can move horizontally stably.

[0040] The cross-sections of the slide groove 460, the slider 470, and the slide bar 480 are all T-shaped to prevent the slide bar 480 from slipping out of the slide groove 460 located on the top surface and the slider 470 from slipping out of the slide groove 460 located on the side.

[0041] The inner wall of the L-shaped plate 450 is fixedly connected to a reinforcing plate 490. The reinforcing plate 490 has a triangular structure and can reinforce the L-shaped plate 450, thus improving its stability.

[0042] The working principle of this utility model is as follows: The suspension frame 220 is connected to the tractor by a pin, so that the tractor can move the portable air compressor device in the tunnel to the required position in the tunnel. Then, the single-head electric push rod 420 and the double-head electric push rod 430 are activated in sequence. The output end of the single-head electric push rod 420 drives the protective shell 440, the double-head electric push rod 430, the connecting rod 410 and the wheel stop mechanism 300 to move downwards in sync until the bottom of the rubber sleeve 320 contacts the ground. The output end of the double-head electric push rod 430 drives the two connecting rods 410 to move in opposite directions. The connecting rods 410 drive the wheel stop mechanism 300 to move towards the tire of the moving vehicle 210 until the arc surface of the rubber sleeve 320 contacts the tire of the moving vehicle 210, thus blocking and limiting the tire of the moving vehicle 210 to prevent the moving vehicle 210 from moving accidentally. At this time, the air outlet of the air compressor body 100 can be connected to the air leg rock drill through the ventilation pipe to provide a stable and efficient compressed air power source for the air leg rock drill.

[0043] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile air compression device for use in tunneling, characterized in that, include: An air compressor body (100) has a displacement mechanism (200) at its bottom for easy movement. Below the displacement mechanism (200) are a wheel stop mechanism (300) for limiting its movement and an adjustment mechanism (400) for adjusting the position of the wheel stop mechanism (300). The displacement mechanism (200) includes a mobile vehicle (210) installed at the bottom of the air compressor body (100), and a suspension frame (220) for use with a tractor is fixedly connected to one side of the bottom of the mobile vehicle (210). The wheel chock mechanism (300) and the adjustment mechanism (400) are both located between the four tires of the mobile vehicle (210), and the four wheel chock mechanisms (300) are arranged in a rectangular array. The wheel chock mechanisms (300) are arranged in a one-to-one correspondence with the tires of the mobile vehicle (210), and the adjustment mechanism (400) can drive the four wheel chock mechanisms (300) to move synchronously.

2. The mobile air compression device for tunneling of claim 1, wherein: The wheel stop mechanism (300) includes a stop block (310), and a rubber sleeve (320) is fixedly connected to the surface of the stop block (310). The rubber sleeve (320) wraps around the side of the stop block (310) facing the tire of the moving vehicle (210) and the bottom.

3. The mobile air compression device for tunnels of claim 2, wherein: Both the stop block (310) and the rubber sleeve (320) have an arc surface on the side facing the tire of the moving vehicle (210), and the arc surface is adapted to the outer diameter of the tire of the moving vehicle (210).

4. The mobile air compression device for tunnels of claim 2, wherein: The adjustment mechanism (400) includes two connecting rods (410) arranged along the axis of the moving vehicle (210). The two ends of the connecting rods (410) are fixedly connected to two adjacent stops (310). The bottom of the moving vehicle (210) is provided with a single-head electric push rod (420). The output end of the single-head electric push rod (420) is provided with a double-head electric push rod (430). The two output ends of the double-head electric push rod (430) are fixedly connected to the two connecting rods (410) respectively.

5. The mobile air compression device for use in a tunnel of claim 4, wherein: The bottom of the mobile vehicle (210) has a receiving cavity, and the single-headed electric push rod (420) is installed in the receiving cavity.

6. The mobile air compression device for tunnels of claim 4, wherein: The surface of the dual-headed electric push rod (430) is fixedly fitted with a protective shell (440), and the top of the protective shell (440) is fixedly connected to the output end of the single-headed electric push rod (420).

7. The mobile air compression device for tunnels of claim 4, wherein: Two symmetrical L-shaped plates (450) are movably provided on the side of the connecting rod (410) away from the tire of the mobile vehicle (210). The L-shaped plates (450) are movably provided at the bottom of the mobile vehicle (210). The side and top surfaces of the outer surface of the L-shaped plates (450) are respectively provided with sliding grooves (460). The inner cavity of the sliding groove (460) on the side is slidably connected to a slider (470). One side of the slider (470) is fixedly connected to the connecting rod (410).

8. The mobile air compression device for tunnels of claim 7, wherein: Both sides of the bottom of the mobile vehicle (210) are fixedly connected to slide bars (480) arranged along the axial direction of the double-headed electric push rod (430), and the two ends of the slide bars (480) are respectively slidably connected to the inner wall surface of the corresponding slide groove (460) located on the top surface.

9. The mobile air compression device for tunnels of claim 8, wherein: The cross sections of the chute (460), the sliding block (470) and the sliding strip (480) are all T-shaped structures.

10. The mobile air compression device for tunnels of claim 7, wherein: The inner wall surface of the L-shaped plate (450) is fixedly connected with a reinforcing plate (490), and the reinforcing plate (490) is a triangular structure.

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