Air duct switching mechanism

Abstract

The air duct switching mechanism comprises an assembly base plate, and two ventilation openings are formed in the assembly base plate; sliding mechanisms are arranged on the side edges of the two ventilation openings, and air duct quick connectors are arranged on the sliding mechanisms. The air duct quick connector is arranged between the two ventilation openings in a sliding mode based on the sliding mechanism. According to the utility model, the problem that a large amount of working surface space is occupied by the air duct in the prior art is solved, and a single-air-duct dual-working mode, namely switching between positive-pressure air supply and negative-pressure air collection, is realized. And the equipment is simple in structure, small in occupied space and convenient for field management.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of underground ventilation equipment, especially to a air duct switching mechanism. BACKGROUND

[0002] Underground ventilation is the most important in safety production, and the prior art means can realize positive pressure air supply and dust collection effect through negative pressure air collection by controlling air. Specifically, a kind of air duct dust control system is disclosed in Chinese patent 2024202091377, and it is obvious that the air blowing equipment and negative pressure air collection equipment supply air to working face, at least two channels are needed between equipment and working face, and the above-mentioned two channels in prior art are independently arranged.

[0003] The disadvantage of this case is that the air cylinder occupies a large amount of roadway space, especially the positive and negative pressure air cylinder to the head to the working face, which involves the arrangement of multiple electrical equipment in the area, and the area space is relatively narrow, and the arrangement of multiple air cylinders has the disadvantages of large space occupation, inconvenient on-site management and construction. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the shortcomings of prior art, providing a kind of air duct switching mechanism with simple structure, which can switch single air duct through air duct switching mechanism, meet single channel ventilation in a certain area, and reduce air cylinder space occupation in the area.

[0005] The device includes an assembly substrate, two ventilation openings are formed in the assembly substrate;

[0006] A sliding mechanism is arranged on the side of the two ventilation openings, and a quick air cylinder connector is arranged on the sliding mechanism;

[0007] The quick air cylinder connector is arranged between the two ventilation openings based on the sliding mechanism.

[0008] The effect achieved is that the two ventilation openings can be respectively configured with positive pressure air supply and negative pressure air collection mechanism, and based on the sliding arrangement of the quick air cylinder connector, the mechanism can be slid to connect the quick air cylinder connector with the two ventilation openings, and the positive pressure air supply and negative pressure air collection effect based on single air cylinder arrangement can be realized in the working face.

[0009] The utility model has the advantages that the utility model solves the problem of large air cylinder space occupation in the working face in prior art, realizes single air cylinder double working mode, i.e. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1It is the structural schematic view of the air duct switching mechanism of the utility model;

[0011] Figure 2 It is the position relation schematic view of each component of the air duct switching mechanism of the utility model;

[0012] Figure 3 It is the structural schematic view of the embodiment of the air duct switching mechanism of the utility model;

[0013] Reference signs:

[0014] 1-assembly base plate 2-vent 3-tube quick connector 4-adapter sleeve 5-limiting vertical plate 6-side vertical plate 7-assembly lug 8-stiffener plate 9-positive pressure tube 10-negative pressure fan

[0015] The utility model discloses the realization, functional characteristics and advantages will be further explained in conjunction with the embodiment, with reference to the drawings. DETAILED DESCRIPTION

[0016] With reference to Figure 1 、 Figure 2 The air duct switching mechanism of the utility model, including assembly base plate 1, two vents 2 are set up on the assembly base plate 1,

[0017] Slip mechanism is set up on the side of two vents 2, and the slip mechanism is provided with a tube quick connector 3;

[0018] The tube quick connector 3 is based on the slip mechanism and is arranged between the two vents 2.

[0019] The effect realized is that two vents 2 can be respectively configured with positive pressure air supply and negative pressure air collection mechanism, and based on the sliding arrangement of the tube quick connector 3, the mechanism can be slid to make the tube quick connector 3 and two vents 2 respectively connected, and the positive pressure air supply and negative pressure air collection effect based on single-tube arrangement can be realized on the working surface.

[0020] In embodiment 1, the assembly base plate 1 is a rectangular plate, and the edge and corner transition is smoothly chamfered.

[0021] The vent 2 is divided into the upper part and the lower part of the assembly base plate 1, and a stiffener plate 8 is further arranged between the two vents 2.

[0022] The effect realized is to optimize the mechanical structure configuration of the equipment and strengthen the mechanical strength.

[0023] In embodiment 2, the vent 2 is fixedly connected with an adapter sleeve 4, and the adapter sleeves 4 on the two vents 2 are arranged on the same side.

[0024] The connecting sleeve 4 is a circular sleeve structure, and an assembling ring with an outer diameter larger than that of the connecting sleeve 4 is fixedly connected to the outer edge of the connecting sleeve 4.

[0025] Preferably, the assembling ring is welded or configured by punching and flanging the edge of the connecting sleeve 4.

[0026] Therefore, the two air vents 2 are respectively connected to the positive pressure air supply and the negative pressure air collection pipeline.

[0027] In the embodiment 3, the two limiting vertical plates 5 and the side vertical plate 6 are arranged between the limiting vertical plates 5 and the assembling base plate 1.

[0028] Further, the limiting vertical plate 5 is a curved sheet plate.

[0029] Therefore, the stroke of the air duct quick connector 3 is matched, mechanical limiting of the sliding stroke is provided, and the use strength of the equipment is also enhanced.

[0030] In the embodiment 4, the air duct quick connector 3 is provided with an assembling lug 7, and the assembling lug 7 is connected to the sliding mechanism.

[0031] The sliding mechanism is a rodless air cylinder.

[0032] Therefore, the air duct quick connector 3 is driven to slide by the rodless air cylinder, and is respectively connected to the two air vents 2 at the two end limit strokes. The rodless air cylinder can also be replaced by a hydraulic cylinder, an electric push rod or other mature telescopic electromechanical equipment.

[0033] Further, the assembling lug 7 is provided with two assembling lugs 7, and the two assembling lugs 7 are symmetrically arranged on the air duct quick connector 3.

[0034] Each assembling lug 7 is connected to the sliding mechanism.

[0035] Therefore, the stroke of the equipment is stable, and the operation is safe.

[0036] Further, the air duct quick connector 3 and the assembling base plate 1 are provided with an air-tight ring.

[0037] Preferably, the air-tight ring can be arranged on the periphery of the two air vents 2 or on the inner surface of the air duct quick connector 3.

[0038] Therefore, the air flow output is stable.

[0039] In the embodiment 5, refer to the accompanying drawings. Figure 3Two air vents 2 are connected with positive pressure air duct 9 and negative pressure fan 10 respectively.

[0040] The effect achieved by this is that, as shown in the accompanying drawings Figure 3 of the specification, the negative pressure fan 10 is directly connected with the device, that is, the strong negative pressure wind collecting and dust reducing action is achieved, and dust accumulation in the working face air duct section is avoided; that is, after the air duct switching, the coal dust in the air duct is avoided from being deposited seriously and then blown into the working face.

[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting and the claims.

[0042] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A duct switching mechanism comprising an assembly substrate, characterized by: The assembling base plate is provided with two ventilation openings; A sliding mechanism is arranged on the side of the two ventilation openings, and a wind pipe quick connector is arranged on the sliding mechanism; The wind pipe quick connector is arranged to slide between the two ventilation openings based on the sliding mechanism.

2. A duct switching mechanism according to claim 1, wherein The assembling base plate is a rectangular plate, and the corners of the rectangular plate are provided with smooth chamfers; The ventilation openings are arranged on the upper and lower parts of the assembling base plate, and a reinforcing rib plate is arranged between the two ventilation openings.

3. A duct switching mechanism according to claim 1, wherein A connecting sleeve is fixedly connected to the ventilation opening, and the connecting sleeves on the two ventilation openings are arranged on the same side. The connecting sleeve is a circular sleeve structure, and an assembling ring with an outer diameter larger than that of the connecting sleeve is fixedly connected to the outer edge of the connecting sleeve.

4. A duct switching mechanism according to claim 1, wherein Corresponding to the sliding stroke of the wind pipe quick connector, a limiting vertical plate is arranged on the assembling base plate at the upper and lower positions, respectively, and a side vertical plate is arranged between the two limiting vertical plates, and a reinforcing rib is arranged between the limiting vertical plate, the side vertical plate and the assembling base plate.

5. A duct switching mechanism according to claim 4, wherein The limiting vertical plate is a curved sheet plate.

6. A duct switching mechanism according to claim 1, wherein The side edge of the wind pipe quick connector is provided with an assembling lug, and the assembling lug is connected to the sliding mechanism. The sliding mechanism is a rodless air cylinder.

7. A duct switching mechanism according to claim 6, wherein The assembling lug is provided with two assembling lugs, and the two assembling lugs are symmetrically arranged on the wind pipe quick connector. Each assembling lug is connected to the sliding mechanism.

8. A duct switching mechanism according to claim 1, wherein An air-tight ring is arranged between the wind pipe quick connector and the assembling base plate.

9. A duct switching mechanism according to claim 1, wherein The two ventilation openings are respectively connected to a positive pressure wind pipe and a negative pressure fan.

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