CN219126173U

CN219126173U - Dust suction device

Info

Publication number: CN219126173U
Application number: CN202223427940.8U
Authority: CN
Inventors: 吴元辉; 崔冲; 熊信涛; 陈振华; 王鹏; 李曜昊
Original assignee: First Engineering Co Ltd of China Railway Electrification Engineering Group Co Ltd; Third Engineering Co Ltd of China Railway Electrification Engineering Group Co Ltd
Current assignee: First Engineering Co Ltd of China Railway Electrification Engineering Group Co Ltd; Third Engineering Co Ltd of China Railway Electrification Engineering Group Co Ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-06
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a dust collection device, which comprises a negative pressure device, a four-way pipe and a dust collection reversing mechanism, wherein the negative pressure device is provided with a dust collection port and a dust outlet, two pipe orifices of the four-way pipe are oppositely arranged, the other two pipe orifices of the four-way pipe are used as air inlets, a preset included angle is formed between the two air inlets, one of the opposite pipe orifices of the four-way pipe is connected with the dust collection port of the negative pressure device, the dust collection reversing mechanism is connected at the other pipe orifice of the opposite pipe orifice of the four-way pipe in a sealing way, the two air inlets are communicated with the outside, and at least one air inlet is communicated with the outside. The dust collection device can collect dust in one direction independently, can collect dust in two directions simultaneously, can adjust the dust collection direction according to actual needs, and improves dust collection efficiency.

Description

Dust suction device

Technical Field

The utility model relates to the technical field of tunnel construction, in particular to a dust collection device.

Background

When railway and subway construction are carried out, the operation of punching the leaky cable in the tunnel is usually needed, so that the suspension of the leaky cable of the private network or the suspension of the leaky cable of the public network is realized. When punching in the tunnel, can produce a large amount of dust, if not in time clear up the dust, influence staff's sight on the one hand, on the other hand there is the operational environment of a large amount of dust to cause harm to staff's health. The existing dust collection device can collect dust in one direction only, and dust collection efficiency needs to be improved.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model innovatively provides the dust collection device, which can collect dust in one direction independently, can collect dust in two directions simultaneously, can adjust the dust collection direction according to actual needs, and improves the dust collection efficiency.

In order to achieve the technical purpose, the utility model discloses a dust collection device which comprises a negative pressure device, a four-way pipe and a dust collection reversing mechanism, wherein the negative pressure device is provided with a dust collection port and a dust outlet, two pipe orifices of the four-way pipe are arranged oppositely, the other two pipe orifices of the four-way pipe are used as air inlets, a preset included angle is formed between the two air inlets, one of opposite pipe orifices of the four-way pipe is connected with the dust collection port of the negative pressure device, the dust collection reversing mechanism is connected with the other pipe orifice of the opposite pipe orifice of the four-way pipe in a sealing way, the communication state between the two air inlets and the outside is switched, and at least one air inlet is communicated with the outside.

Further, the dust collection reversing mechanism comprises a reversing check block for closing the air suction port, a sealing piston for sealing the pipe orifice of the four-way pipe away from the negative pressure device, and a rotary driving mechanism, wherein the reversing check block and the sealing piston are sleeved in pipelines where two opposite pipe orifices of the four-way pipe are located, one end of the reversing check block, which is away from the negative pressure device, is fixedly connected with the sealing piston, the rotary driving mechanism is fixedly connected with the sealing piston, and the rotary driving mechanism drives the reversing check block and the sealing piston to rotate relative to the four-way pipe so that the air suction port is closed or opened by the reversing check block, and at least one air suction port is communicated with the outside.

Further, the dust collection reversing mechanism comprises a reversing check block for closing the air suction port, a sealing piston for sealing the pipe orifice of the four-way pipe away from the negative pressure device, and a rotary driving mechanism, wherein the reversing check block and the sealing piston are sleeved in pipelines where two opposite pipe orifices of the four-way pipe are located, the sealing piston is positioned at one side of the reversing check block away from the negative pressure device and is fixedly connected with the four-way pipe, the rotary driving mechanism penetrates through the sealing piston and is fixedly connected with the reversing check block, and the rotary driving mechanism drives the reversing check block to rotate relative to the four-way pipe so that the air suction port is closed or opened by the reversing check block, and at least one air suction port is communicated with the outside.

Further, the rotation driving mechanism is a motor.

Further, the rotary driving mechanism is a rotary cylinder.

Further, sealing lubricating oil is coated between the sealing piston and the inner wall of the four-way pipe.

Further, sealing lubricating oil is coated between the sealing piston and the rotary driving mechanism.

Further, the included angle between the two air inlets is 180 degrees.

The beneficial effects of the utility model are as follows:

the dust collection device can collect dust in one direction independently, can collect dust in two directions simultaneously, can adjust the dust collection direction according to actual needs, and improves dust collection efficiency.

Drawings

Fig. 1 is a schematic structural view of a dust suction device according to an embodiment of the present utility model;

figure 2 is a longitudinal cross-sectional view of a suction device according to an embodiment of the present utility model;

figure 3 is a longitudinal section through a suction device according to another embodiment of the utility model.

In the drawing the view of the figure,

1. a negative pressure device; 2. a four-way pipe; 21. an air suction port; 3. a dust collection reversing mechanism; 31. a reversing stop block; 32. a sealing piston; 33. a rotary driving mechanism; 4. and (5) supporting frames.

Detailed Description

The dust suction device provided by the utility model is explained and illustrated in detail below with reference to the accompanying drawings.

The embodiment specifically discloses a dust collection device, as shown in fig. 1, including a negative pressure device 1, a four-way pipe 2 and a dust collection reversing mechanism 3, the negative pressure device 1 is provided with a dust collection port and a dust outlet, two of the two pipe orifices of the four-way pipe 2 are oppositely arranged, the other two pipe orifices of the four-way pipe 2 are used as air inlets 21, a preset included angle is formed between the two air inlets 21, and in the embodiment, the included angle between the two air inlets 21 is 180 degrees. One of the opposite pipe orifices of the four-way pipe 2 is connected with a dust collection port of the negative pressure device 1, and a dust outlet of the negative pressure device 1 can be connected with a dust collection bag. In the present embodiment, the negative pressure device 1 is a vacuum generator. The dust collection reversing mechanism 3 is connected to the other pipe orifice of the opposite pipe orifice of the four-way pipe 2 in a sealing way, and is used for switching the communication state of the two air suction ports 21 and the outside, and at least one air suction port 21 is communicated with the outside.

At least one of the two dust collection ports is communicated with the outside for dust collection through the reversing of the dust collection reversing mechanism 3, namely, any one of the two dust collection ports is communicated with the outside or both the two dust collection ports are communicated with the outside for dust collection. The switching of the dust collection openings communicated with the outside is determined according to the concentration and the direction of dust collection, if the concentration of the dust is large and the dust is dispersed, the two dust collection openings are opened simultaneously, dust collection is carried out from the two directions, and the dust collection efficiency is improved.

The dust collection device of the embodiment is also provided with a support frame 4, and the negative pressure device 1, the four-way pipe 2 and the dust collection reversing mechanism 3 are fixed on the support frame 4 and used for supporting the negative pressure device 1, the four-way pipe 2 and the dust collection reversing mechanism 3.

As shown in fig. 2, the dust collection reversing mechanism 3 comprises a reversing stop block 31 for closing the air suction port 21, a sealing piston 32 for sealing the pipe orifice of the four-way pipe away from the negative pressure device, and a rotary driving mechanism 33, wherein the reversing stop block 31 and the sealing piston 32 are sleeved in the pipeline where two opposite pipe orifices of the four-way pipe 2 are located, one end of the reversing stop block 31 away from the negative pressure device 1 is fixedly connected with the sealing piston 32, the sealing piston 32 is sealed at the pipe orifice of the four-way pipe 2 away from the negative pressure device 1, the rotary driving mechanism 33 is fixedly connected with the sealing piston 32, and the rotary driving mechanism 33 drives the reversing stop block 31 and the sealing piston 32 to rotate relative to the four-way pipe 2 so that the air suction port 21 is closed or opened by the reversing stop block 31, and at least one air suction port 21 is communicated with the outside.

The shape and radian of the reversing stop block 31 are the same as those of the pipeline where two opposite pipe orifices are located in the four-way pipe 2, for example, the pipeline is cylindrical, the reversing stop block 31 is an arc-shaped plate, the radian is the same as that of the inner wall of the pipeline, the area of the reversing stop block 31 is larger than that of the air suction port 21, and the air suction port 21 can be completely closed. The width of the reversing stop block 31 is smaller than the width between the two air inlets 21, namely, when the reversing stop block 31 is positioned between the two air inlets 21, the two air inlets 21 can be in an open state, so that bidirectional dust collection is realized. The reversing stop 31 is driven to rotate in the pipeline by the rotary driving mechanism 33, so that the reversing stop 31 is switched between a state of closing one air suction port 21 or a state of being positioned between two air suction ports 21, and enabling both air suction ports 21 to be opened, thereby realizing the reversing of dust collection.

The rotary driving mechanism 33 may be a motor, and an output shaft of the motor is fixedly connected with the sealing piston 32. The reversing stop block 31 and the sealing piston 32 are driven to rotate in the pipeline of the four-way pipe 2 by the rotation of the output shaft of the motor, so that the state that the two dust collection ports are closed or opened is switched. As shown in fig. 2, the body of the motor is fixed on the support frame 4 and fixedly connected with the support frame 4, the outer wall of the four-way pipe 2 is fixedly connected with the support frame 4, the outer wall of the negative pressure device 1 is also fixedly connected with the support frame 4, the support frame 4 provides supporting force, and the stability of the device in the dust collection process is ensured.

The rotary driving mechanism 33 may be a rotary cylinder, and a piston rod of the rotary cylinder is fixedly connected with the sealing piston 32. The piston rod of the revolving cylinder drives the reversing stop block 31 and the sealing piston 32 to rotate in the four-way pipe 2, and in the rotating process, the sealing piston 32 is always positioned in the pipeline of the four-way pipe to play a sealing role.

Sealing lubricating oil is coated between the sealing piston 32 and the inner wall of the four-way pipe 2, so that when the sealing piston 32 rotates under the drive of the rotary driving mechanism 33, the sealing state between the sealing piston 32 and the four-way pipe 2 is kept, meanwhile, the rotary resistance is reduced, and dust enters from the air suction port 21 as much as possible.

The sealing piston may be a rubber stopper.

In another embodiment, as shown in fig. 3, the dust collection reversing mechanism 3 includes a reversing block 31 for closing the air suction port 21, a sealing piston 32 for sealing the four-way pipe away from the pipe orifice of the negative pressure device, and a rotary driving mechanism 33, wherein the reversing block 31 and the sealing piston are sleeved in the pipe where two opposite pipe orifices of the four-way pipe 2 are located, the sealing piston 32 is positioned at one side of the reversing block away from the negative pressure device and is fixedly connected with the four-way pipe, the rotary driving mechanism 33 is fixedly connected with the reversing block through the sealing piston 32, and the rotary driving mechanism 33 drives the reversing block 31 to rotate relative to the four-way pipe 2 so that the air suction port 21 is closed or opened by the reversing block 31, and at least one air suction port 21 is communicated with the outside. In the present embodiment, the sealing piston 32 is fixed, and only the reversing block 31 rotates in the pipe of the four-way pipe 2 by the driving of the rotary driving mechanism 33, so as to close or open the air suction port 21, thereby realizing the reversing of dust collection.

The rotary driving mechanism 33 may be a motor, an output shaft of the motor is rotationally connected with the sealing piston 32, and an output shaft of the motor passes through the sealing piston 32 to be fixedly connected with the reversing stop. The reversing stop block 31 is driven to rotate in the pipeline of the four-way pipe 2 by the rotation of the motor output shaft, so that the state that the two dust collection ports are closed or opened is switched.

The rotary driving mechanism 33 may also be a rotary cylinder, a piston rod of which is rotationally connected with the sealing piston 32, and a piston rod of which passes through the sealing piston 32 to be fixedly connected with the reversing stop. The piston rod of the revolving cylinder drives the reversing stop block 31 to rotate in the four-way pipe 2, and in the rotating process, the sealing piston 32 is always positioned in the pipeline of the four-way pipe to play a sealing role.

Sealing lubricating oil is coated between the sealing piston 32 and the rotary driving mechanism 33, namely, sealing lubricating oil is coated between the sealing piston and an output shaft of the motor or between the sealing piston and a piston rod of the rotary cylinder. When the output shaft of the motor or the piston rod of the revolving cylinder rotates, the sealing state is maintained with the sealing piston 32, and meanwhile, the rotation resistance is reduced, so that dust enters from the air suction port 21 as much as possible.

When the dust collection device of the embodiment is used for collecting dust, the rotary driving mechanism 33 is started according to the dust collection degree and concentration of the environment where the dust collection device is positioned, the rotary driving mechanism 33 drives the reversing stop block 31 to rotate in the four-way pipe 2, if dust on one side is collected, only the air suction port 21 on one dust collection side can be opened, and the other air suction port 21 is closed through the reversing stop block 31; if the dust concentration around the dust device is large, the reversing block 31 rotates between the two air inlets 21, so that the two air inlets 21 are opened; then, the negative pressure device 1 is turned on, dust is sucked in through the air suction port 21, and discharged into the dust collection bag from the dust outlet of the negative pressure device 1.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to the terms "present embodiment," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any at least one embodiment or example. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any modifications, equivalents, and simple improvements made within the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a dust extraction, its characterized in that includes negative pressure device (1), four-way pipe (2) and dust absorption reversing mechanism (3), negative pressure device (1) are equipped with dust absorption mouth and play dirt mouth, two of them mouth of pipe of four-way pipe (2) set up relatively, two other mouthfuls of pipe of four-way pipe (2) are as induction port (21), two be the contained angle of predetermineeing between induction port (21), one of them mouthful relatively of four-way pipe (2) with the dust absorption mouth of negative pressure device (1) is connected, dust absorption reversing mechanism (3) sealing connection are in another mouth of pipe department of the relative mouth of pipe of four-way pipe (2) just switches two induction port (21) and external intercommunication state, at least one induction port (21) and external intercommunication.

2. The dust collection device according to claim 1, wherein the dust collection reversing mechanism (3) comprises a reversing stop block (31) for closing the air suction port (21), a sealing piston (32) for sealing the opening of the four-way pipe away from the negative pressure device, and a rotary driving mechanism (33), the reversing stop block (31) and the sealing piston (32) are sleeved in a pipeline where two opposite openings of the four-way pipe (2) are located, one end of the reversing stop block (31) away from the negative pressure device (1) is fixedly connected with the sealing piston (32), the rotary driving mechanism (33) is fixedly connected with the sealing piston (32), and the rotary driving mechanism (33) drives the reversing stop block (31) and the sealing piston (32) to rotate relative to the four-way pipe (2) so that the air suction port (21) is closed or opened by the reversing stop block (31), and at least one air suction port (21) is communicated with the outside.

3. The dust collection device according to claim 1, wherein the dust collection reversing mechanism (3) comprises a reversing stop block (31) for closing the air suction port (21), a sealing piston (32) for sealing the opening of the four-way pipe away from the negative pressure device, and a rotary driving mechanism (33), the reversing stop block (31) and the sealing piston (32) are sleeved in a pipeline where two opposite openings of the four-way pipe (2) are located, the sealing piston (32) is positioned on one side of the reversing stop block away from the negative pressure device and is fixedly connected with the four-way pipe, the rotary driving mechanism (33) penetrates through the sealing piston (32) and is fixedly connected with the reversing stop block, and the rotary driving mechanism (33) drives the reversing stop block (31) to rotate relative to the four-way pipe (2) so that the air suction port (21) is closed or opened by the reversing stop block (31), and at least one air suction port (21) is communicated with the outside.

4. A dust extraction device according to claim 2 or 3, wherein the rotary drive mechanism (33) is an electric motor.

5. A dust extraction device according to claim 2 or 3, wherein the rotary drive mechanism (33) is a revolving cylinder.

6. A dust extraction according to claim 2, characterized in that sealing grease is applied between the sealing piston (32) and the inner wall of the four-way pipe (2).

7. A dust extraction device according to claim 3, characterized in that sealing grease is applied between the sealing piston (32) and the rotary drive mechanism (33).

8. A suction device according to claim 1, characterized in that the angle between the two suction openings (21) is 180 °.