Pneumatic dust and liquid cleaning machine based on Venturi valve

Abstract

The utility model provides a pneumatic dust and liquid cleaning machine based on a Venturi valve, and aims to solve the problems that a traditional electrically-driven vacuum cleaner is complex in structure and high in cost and does not meet the non-electric anti-explosion requirement. The device mainly comprises a containing bin, an air suction and exhaust assembly and a pipeline switching assembly, and the pipeline switching assembly is connected with a discharge pipe used for feeding dust liquid into the bin, a discharge pipe used for lifting the dust liquid upwards from the bottom in the bin and a bin outer pipe penetrating through the containing bin to be connected to the outside. The bin outer pipe is selectively connected to the feeding pipe or the discharging pipe under the control of the pipeline switching assembly. According to the pneumatic dust and liquid cleaning machine, compressed air serves as a power source, the Venturi valve serves as a fluid transmission part, the requirement of the non-electric explosion-proof working condition is met, and the pneumatic dust and liquid cleaning machine is simple in structure, economical and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial cleaning technical field especially a kind of pneumatic dust-liquid cleaning machine based on Venturi valve. BACKGROUND

[0002] Industrial vacuum cleaner is widely used in metal processing, chemical production, textile, machining, food processing and other fields, for collecting dust, debris, liquid and other pollutants generated in industrial environment;The existing problem is that workshop, processing site under industrial environment have certain safety anti-explosion requirements, therefore, traditional electrically-driven vacuum cleaner is not applicable to this working condition, and existing electrically-driven vacuum cleaner is complex in structure, expensive in price, and cannot be popularized to small and micro enterprises. SUMMARY

[0003] The present application provides a kind of pneumatic dust-liquid cleaning machine based on Venturi valve to the above-mentioned shortcomings in prior art, to compressed air as power source, Venturi valve as fluid transmission piece, meet the working condition needs of no electricity explosion-proof, and the structure of this pneumatic dust-liquid cleaning machine is simple, more economical and practical.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A kind of pneumatic dust-liquid cleaning machine based on Venturi valve, it includes containing bin, the air suction and exhaust component that is communicated to inside is arranged on the containing bin, pipeline switching component is also arranged on the containing bin, the discharge pipe for dust-liquid into bin, the discharge pipe for dust-liquid from the bottom of bin to be lifted upwards and the bin outer pipe that is connected to outside and penetrates containing bin are connected with the pipeline switching component respectively, the bin outer pipe is alternatively connected to discharge pipe or discharge pipe under the control of pipeline switching component.

[0006] Further, the air suction and exhaust component includes first air cylinder and Venturi valve that are adjacent and arranged on containing bin, the driving end of the air cylinder is provided with plug, the plug is arranged in the extension stroke of the air cylinder relative to the outlet of Venturi valve and can close the outlet of Venturi valve, the suction port of Venturi valve is communicated with the inside of containing bin.

[0007] Further, the air suction and exhaust component is also provided with silencing assembly above, and the silencing assembly includes a plurality of mutually stacked silencing nets.

[0008] Further, the pipeline switching component includes three-way valve, the outer sleeve is fixedly arranged in the inside of three-way valve, the inner sleeve is slidably arranged in the outer sleeve, three wall holes that are communicated with each pipeline are arranged on the outer sleeve, the first reversing hole for connecting discharge pipe and bin outer pipe and the second reversing hole for connecting discharge pipe and bin outer pipe are sequentially arranged on the inner sleeve along its axial direction, and the second air cylinder connected with the inner sleeve is also arranged on one side of three-way valve.

[0009] Further, the side of the outer sleeve away from the second cylinder is also provided with a limiting assembly.

[0010] Further, the limiting assembly comprises a limiting ring embeddedly installed at the end face of the three-way valve, and flexible gaskets are further arranged between the limiting ring and the inner sleeve.

[0011] Further, the circumferential surface of the outer sleeve is fixedly connected with the three-way valve through bolts.

[0012] Further, the center of the containing bin is hung with a filter basket downwardly, the end of the discharge pipe is connected with the filter basket, and an openable and closable observation window is formed in the surface of the containing bin above the filter basket.

[0013] Further, an instrument table is formed in the upper surface of the containing bin, the air suction and discharge assembly and the pipeline switching assembly are installed in the instrument table, and a plurality of detection pieces are further installed on the surface of the instrument table.

[0014] The beneficial effects of the utility model are as follows:

[0015] Compared with the prior art, the pneumatic dust-liquid cleaning machine provided by the utility model can be widely applied to dust suction and cleaning operation in various industrial fields.

[0016] Compared with the prior art, the pneumatic dust-liquid cleaning machine provided by the utility model adopts compressed air as a power source and a Venturi valve as a fluid transmission piece, so that the pressure inside the containing bin is increased or reduced, a pressure difference is formed to realize suction and discharge; the pipeline switching assembly is composed of an outer sleeve and an inner sleeve, the linear displacement of the inner sleeve driven by a cylinder is used to realize the switching of the pipeline, so that the on-off of the suction and discharge switching pipeline is matched. The design has the advantages of simple structure, beautiful modeling and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is Figure 1 a schematic diagram of the internal structure;

[0019] Figure 3 It is a schematic diagram of the structure of the air suction and discharge assembly and the pipeline switching assembly in the utility model;

[0020] Figure 4 It is an exploded schematic diagram of the pipeline switching assembly in the utility model.

[0021] Wherein: 1, containing bin; 4, discharge pipe; 5, discharge pipe; 6, bin outer pipe;

[0022] 2, air suction and exhaust assembly; 21, first cylinder; 22, venturi valve; 23, plug;

[0023] 3, pipeline switching assembly; 31, three-way valve; 32, outer sleeve; 33, inner sleeve; 34, wall hole; 35, first reversing hole; 36, second reversing hole; 37, second cylinder; 38, bolt;

[0024] 7, silencing assembly; 71, silencing net;

[0025] 8, limiting assembly; 81, limiting ring; 82, flexible gasket;

[0026] 9, filter basket; 10, observation window; 11, instrument desk; 12, detection piece. DETAILED DESCRIPTION

[0027] The specific implementation of the present application will be described below in conjunction with the accompanying drawings.

[0028] The utility model provides a kind of based on venturi valve's pneumatic dust liquid cleaning machine, to solve the complex structure of traditional electric drive dust collection, high cost, not meet the problem of no electricity explosion-proof.

[0029] Specifically, as shown in Figures 1 to 4 The utility model discloses a containing bin 1 is provided with the air suction and exhaust assembly 2 that is communicated with inside on containing bin 1, containing bin 1 is further provided with pipeline switching assembly 3, pipeline switching assembly 3 is connected with respectively for the dust liquid of being used to the discharge pipe 4 of being entered into bin, for the discharge pipe 5 of being used to the dust liquid of being lifted from the bottom of bin upwards and the bin outer pipe 6 that is connected to outside by penetrating containing bin 1, bin outer pipe 6 is under the control of pipeline switching assembly 3 alternatively connect in discharge pipe 4 or discharge pipe 5.

[0030] Through the above technical scheme, containing bin 1 is a large volume dust liquid collection space, pipeline switching assembly 3 and the cylinder in air suction and exhaust assembly 2 are supplied with gas by same compressed gas source, to control the switching of pipeline when sucking liquid or the switching of pipeline when discharging liquid synchronously.

[0031] In some embodiments, air suction and exhaust assembly 2 includes first cylinder 21 and venturi valve 22 that are arranged adjacent to containing bin 1, the driving end of cylinder is provided with plug 23, plug 23 is arranged in the extension stroke of cylinder relative to the outlet of venturi valve 22 can close the outlet of venturi valve 22, the suction port of venturi valve 22 is communicated with the inside of containing bin 1.

[0032] Through the technical scheme, the working principle of the air suction and discharge assembly 2 is that the inlet of the Venturi valve 22 is connected with an external compressed air source, when the outlet of the Venturi valve 22 is not closed by the plug 23, a vacuum area is formed at the suction port of the Venturi valve 22, so that the inside of the containing bin 1 is in a negative pressure state, at this time, the outside pipe 6 is in a state of sucking liquid inward; when the outlet of the Venturi valve 22 is closed by the plug 23, the external compressed air source directly flows into the inside of the containing bin 1, the pressure in the containing bin 1 is increased, at this time, the outside pipe 6 is in a state of discharging liquid.

[0033] In some embodiments, the upper portion of the air suction and discharge assembly 2 is further provided with a sound attenuation assembly 7, and the sound attenuation assembly 7 comprises a plurality of sound attenuation nets 71 stacked with each other.

[0034] Through the technical scheme, since the Venturi valve 22 is a fluid transmission part, there is a large vibration noise in the air supply process, and two sound attenuation nets 71 are arranged to improve the noise during operation and improve the use experience.

[0035] In some embodiments, the pipeline switching assembly 3 comprises a three-way valve 31, an outer sleeve 32 is fixedly arranged in the three-way valve 31, an inner sleeve 33 is slidably arranged in the outer sleeve 32, three wall holes 34 are arranged on the outer sleeve 32 and are in communication with respective pipelines, the inner sleeve 33 is sequentially provided with a first switching hole 35 for connecting the discharge pipe 4 and the outside pipe 6 and a second switching hole 36 for connecting the discharge pipe 5 and the outside pipe 6 along the axial direction of the inner sleeve 33, and a second air cylinder 37 connected with the inner sleeve 33 is further arranged on one side of the three-way valve 31.

[0036] Through the technical scheme, the linear sliding of the inner sleeve 33 is controlled by the second air cylinder 37, so as to switch the communication state of the first switching hole 35 and the second switching hole 36, that is, to switch the pipeline connection state of liquid suction or liquid discharge.

[0037] In some embodiments, a limiting assembly 8 is further arranged on the side of the outer sleeve 32 away from the second air cylinder 37. The limiting assembly 8 comprises a limiting ring 81 embedded and arranged on the end face of the three-way valve 31, and a flexible gasket 82 is further arranged between the limiting ring 81 and the inner sleeve 33.

[0038] Through the technical scheme, the limiting assembly 8 can form a limit on one side of the inner sleeve 33, so as to avoid linear movement beyond the safe stroke.

[0039] In some embodiments, the circumferential surface of the outer sleeve 32 and the three-way valve 31 are fixedly connected through a bolt 38, so as to fix the relative position of the outer sleeve 32.

[0040] In some embodiments, the center of the containing bin 1 is hung downward with a filter basket 9 (only the installation position is shown in the figure, which is installed below the observation window), the end of the discharge pipe 4 is connected to the filter basket 9, and an observation window 10 capable of being opened and closed is arranged on the surface of the containing bin 1 above the filter basket 9.

[0041] Through the above technical solution, waste liquid containing dust and debris during liquid aspiration enters the filter basket 9 from the outside, allowing particulate dust and fragments to be filtered into the filter basket 9, while the waste liquid enters the bottom of the chamber. Simultaneously, a transparent observation window 10 is designed to facilitate staff observation of the chamber's interior and maintenance / replacement of the filter basket 9.

[0042] In some embodiments, an instrument panel 11 is provided on the upper surface of the accommodating chamber 1. The air intake and exhaust assembly 2 and the pipeline switching assembly 3 are installed inside the instrument panel 11. In this embodiment, two detection elements 12, such as pressure monitoring gauges, are also installed on the surface of the instrument panel 11 for feedback and observation of the equipment status.

[0043] The working principle of this utility model:

[0044] When in use, this sweeper adopts a mobile design and can be moved to the work site via the bottom casters;

[0045] When aspirating liquid, the first cylinder 21 does not operate, while the second cylinder 37 operates. At this time, the plug 23 does not seal the outlet of the venturi valve 22, and a vacuum is formed at the suction port of the venturi valve 22, creating a negative pressure inside the receiving chamber 1. The outer tube 6 is used for aspirating liquid.

[0046] During drainage, the first cylinder 21 is activated and the second cylinder 37 is reset. At this time, the plug 23 closes the outlet of the venturi valve 22, and compressed air directly enters the receiving chamber 1, increasing the pressure inside the chamber. Simultaneously, the pipeline is switched, and the waste liquid inside the chamber is discharged to the outside through the discharge pipe 5 and the external pipe 6.

[0047] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A venturi valve based pneumatic dust liquid cleaning machine characterized in that: The utility model provides a dust collecting device, which comprises a containing bin (1), an air suction and exhaust assembly (2) communicated with the inside of the containing bin (1), and a pipeline switching assembly (3) provided on the containing bin (1), wherein the pipeline switching assembly (3) is connected with an inlet pipe (4) for feeding dust liquid into the bin, an outlet pipe (5) for lifting dust liquid upward from the bottom of the bin, and an external pipe (6) connected with the outside of the containing bin (1) and penetrating through the containing bin (1), and the external pipe (6) is selectively connected with the inlet pipe (4) or the outlet pipe (5) under the control of the pipeline switching assembly (3).

2. A Venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 1, wherein: The air suction and exhaust assembly (2) comprises a first cylinder (21) and a venturi valve (22) arranged adjacently on the containing bin (1), the driving end of the cylinder is provided with a plug (23), the plug (23) is arranged at the extension stroke of the cylinder and can close the outlet of the venturi valve (22) relative to the outlet of the venturi valve (22), and the suction port of the venturi valve (22) is communicated with the inside of the containing bin (1).

3. A Venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 2, wherein: The upper portion of the air suction and exhaust assembly (2) is further provided with a sound attenuation assembly (7), and the sound attenuation assembly (7) comprises a plurality of sound attenuation nets (71) stacked with each other.

4. A venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 1, wherein: The pipeline switching assembly (3) comprises a three-way valve (31), an outer sleeve (32) fixedly arranged in the three-way valve (31), an inner sleeve (33) slidably arranged in the outer sleeve (32), three wall holes (34) arranged on the outer sleeve (32) and communicated with respective pipelines, a first reversing hole (35) for connecting the inlet pipe (4) and the external pipe (6) and a second reversing hole (36) for connecting the outlet pipe (5) and the external pipe (6) arranged in sequence on the inner sleeve (33) along the axial direction of the inner sleeve (33), and a second cylinder (37) arranged on one side of the three-way valve (31) and connected with the inner sleeve (33).

5. A Venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 4, wherein: The side, away from the second cylinder (37), of the outer sleeve (32) is further provided with a limiting assembly (8).

6. A venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 5 wherein: The limiting assembly (8) comprises a limiting ring (81) embeddedly arranged on the end face of the three-way valve (31), and a flexible gasket (82) arranged between the limiting ring (81) and the inner sleeve (33).

7. A venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 4 wherein: The outer sleeve (32) is fixedly connected with the three-way valve (31) through bolts (38) arranged on the circumferential surface of the outer sleeve (32).

8. A venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 1, wherein: The center of the containing bin (1) is hung with a filter basket (9) downward, the end of the inlet pipe (4) is connected with the filter basket (9), and an observation window (10) capable of being opened and closed is arranged on the surface of the containing bin (1) above the filter basket (9).

9. A venturi valve based pneumatic dust and liquid cleaning machine as claimed in claim 1, wherein: An instrument table (11) is arranged on the upper surface of the containing bin (1), the air suction and exhaust assembly (2) and the pipeline switching assembly (3) are arranged in the instrument table (11), and a plurality of detection elements (12) are arranged on the surface of the instrument table (11).

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