CN219310921U - Novel pneumatic suction device - Google Patents
Novel pneumatic suction device Download PDFInfo
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- CN219310921U CN219310921U CN202320049448.7U CN202320049448U CN219310921U CN 219310921 U CN219310921 U CN 219310921U CN 202320049448 U CN202320049448 U CN 202320049448U CN 219310921 U CN219310921 U CN 219310921U
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Abstract
A novel pneumatic suction device, comprising: the air supply network is connected with the air supply device, and the pneumatic sander is connected with the suction nozzle. Wherein, the air amplifier module includes: the air inlet device comprises a main body, a base, a first air amplifier, a second air amplifier, a shell, a main air inlet, an air inlet, a circular pressure chamber, an air outlet, a gap, a slot and a bottom surface. Compared with the prior art, the utility model can provide the best air suction performance by additionally arranging the air amplifying module, generates high vacuum for the air amplifier while maintaining the consumption of the contained air, and limits the vacuum and air flow loss.
Description
Technical Field
The utility model relates to the field of automobile body maintenance, in particular to a novel pneumatic suction device.
Background
In the field of automobile body maintenance, the panel beating often needs to polish in the maintenance process, and the operating personnel can use grinder and dust catcher to combine together to operate, and the dust catcher is used for collecting the particulate matter that grinder produced of polishing, especially aluminium granule, hereinafter referred to as dust.
Once stored, metal dust, particularly aluminum dust, is at risk of sparks and explosions when the electric sander is in use. Therefore, sanding machines and dust collectors used in sheet metal repair workshops must meet the requirements of the national standard GB3836 for electrical equipment for explosive gas environments.
In order to meet the national standard GB3836, the electrical components of the electric sander must be isolated from the outside, in particular from the inhaled dust. Such isolation is relatively complex and costly to implement. Therefore, the cost of these sanders is very high, severely hampering their widespread use. In addition, in a sheet metal repair shop, the maintenance of the movable sanding equipment is very little. Thus, the fine particles often clog the collection bag and the filter, resulting in rapid changes in inhalation. In addition, the weight of the electric sander is relatively high, and the labor intensity of operators is increased.
Thus, operators generally prefer to use pneumatic sanders because they are lightweight, easy to handle, and risk-free in the presence of aluminum particles. Pneumatic sanders are typically connected to a suction device, which in turn is connected to a compressed air network installed in a sheet metal repair shop. Thus, both the pneumatic sander and the suction device are connected to the compressed air network of the sheet metal repair shop.
In fact, pneumatic suction devices typically employ venturi effect suction. Venturi getters are well known as they are widely used in the industry to create a vacuum on a holder with suction cups. The vacuum chuck does not create a large air flow and is therefore relatively economical to use.
However, when implementing such solutions in pneumatic suction devices, a large venturi module is required to ensure that the vacuum and suction flow generated are sufficient to suck the dust. Thus, the nozzle port size of the venturi effect module is oversized to obtain a larger airflow. Therefore, the air consumption is very high. For example, in testing this solution, the applicant observed a sharp drop in air pressure in the compressed air system supplying the whole plant, the inlet air pressure dropping from 7bar to 3bar. As a result, the air flow of the sander is greatly reduced, and the compressed air system of the entire shop is also affected.
In other words, this solution is unsatisfactory because it has a high air consumption and is not optimal for the aspiration.
It is therefore necessary to provide a new suction solution for achieving an optimal operation of the suction device when used with pneumatic sanders in a compressed air supply system, in case the air pressure is lower than in the prior art.
To solve the above problems, we have made a series of improvements.
Disclosure of Invention
The present utility model aims to provide a novel pneumatic suction device which overcomes the above-mentioned drawbacks and deficiencies of the prior art.
A novel pneumatic suction device, comprising: the air amplifying module is connected with the connecting pipeline in an embedded way, the compressed air supply network is connected with the air amplifying module, the connecting pipeline and the pneumatic sander through the air supply pipeline, the compressed air supply network is connected with the suction device, and the pneumatic sander is connected with the suction nozzle;
wherein, the air amplifier module includes: the novel air conditioner comprises a main body, a base, a first air amplifier, a second air amplifier, a shell, a main air inlet, an air inlet, a circular pressure chamber, an air outlet, a gap, a slot and a bottom surface, wherein the main body is connected with the base in a matched mode, the first air amplifier and the second air amplifier are connected with the main body and the base in an internal mode, the shell is connected with the connecting pipeline, the shell is connected with the main air inlet, the main air inlet is connected with the air inlet, the air inlet is formed in the lower end of the first air amplifier and the lower end of the second air amplifier, the circular pressure chamber is connected with the air inlet through the slot, the air inlet and the circular pressure chamber are formed in the base in an internal mode, the air outlet is formed in the slot is formed in the bottom surface of the air amplifier, the bottom surface of the air inlet is of a circular or conical structure, and the air outlet is of a circular or conical structure.
Further, the aperture or thickness of the gap is 1-5 mm, and the width or thickness of the slot is 0.05-1 mm.
Further, the shell is provided with an outer surface, and the shell and the outer surface are of adjustable structures.
Further, the air amplifying module is one or a plurality of air amplifying modules.
The utility model has the beneficial effects that:
compared with the prior art, the utility model can provide the best air suction performance by additionally arranging the air amplifying module, generates high vacuum for the air amplifier while maintaining the consumption of the contained air, and limits the vacuum and air flow loss.
Description of the drawings:
fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view of an air amplification module of the present utility model.
Fig. 3 is a cross-sectional view of an air amplifier of the present utility model.
Fig. 4 is a schematic diagram of a part of the structure of the air amplifier of the present utility model.
Fig. 5 is a schematic diagram of a system structure according to the present utility model.
Reference numerals:
A connecting pipe 300, a suction nozzle 400, a compressed air supply network 500, an air supply pipe 600 and a pneumatic sander 700.
Detailed Description
The utility model will now be further described with reference to specific examples. It should be understood that the following examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model.
Example 1
Fig. 1 is a schematic structural view of the present utility model. Fig. 2 is a cross-sectional view of an air amplification module of the present utility model. Fig. 3 is a cross-sectional view of an air amplifier of the present utility model. Fig. 4 is a schematic diagram of a part of the structure of the air amplifier of the present utility model. Fig. 5 is a schematic diagram of a system structure according to the present utility model.
As shown in fig. 1 to 5, a novel pneumatic suction device includes: the suction device 100, the air amplification module 200, the connecting pipeline 300, the suction nozzle 400, the compressed air supply network 500, the air supply pipeline 600 and the pneumatic sander 700, wherein the suction device 100 is connected with the suction nozzle 400 through the connecting pipeline 300, the air amplification module 200 is connected with the connecting pipeline 300 in an embedded way, the compressed air supply network 500 is connected with the air amplification module 200, the connecting pipeline 300 and the pneumatic sander 700 through the air supply pipeline 600, the compressed air supply network 500 is connected with the suction device 100, and the pneumatic sander 700 is connected with the suction nozzle 400;
wherein the air amplification module 200 includes: the air intake device comprises a main body 210, a base 220, a first air amplifier 230, a second air amplifier 240, a housing 250, a main air intake 260, an air intake 270, a circular pressure chamber 280, an air outlet 290, a gap 2100, a slot 2200 and a bottom surface 2300, wherein the main body 210 is connected with the base 220 in a matched manner, the first air amplifier 230 and the second air amplifier 240 are connected with the inside of the main body 210 and the base 220, the housing 250 is connected with the inside of the base 220, the housing 250 is connected with a connecting pipeline 300, the housing 250 is connected with the main air intake 260, the main air intake 260 is connected with the air intake 270, the air intake 270 is arranged at the lower ends of the first air amplifier 230 and the second air amplifier 240, the circular pressure chamber 280 is connected with the air intake 270 through the slot 2200, the air intake 270 and the circular pressure chamber 280 are arranged inside the base 220, the air outlet 290 is arranged at the upper ends of the first air amplifier 230 and the second air amplifier 240, the gap 2100 is connected with the lower end of the air outlet 290, the slot 2100 is arranged in the bottom surface 2300, the bottom surface 2100 is connected with the gap 2200, the surface of the air intake 270 is in a conical structure, and the air outlet 290 is in a conical structure.
The gap 2100 has a 3mm aperture and the slot 2200 has a width of 0.07mm.
The housing 250 has an outer surface 251, and the housing 250 and the outer surface 251 are of an adjustable configuration.
The air amplification module 200 is one.
The principle of the present utility model is to implement one or more air amplification modules 200 between the suction device 100 and the suction nozzle 400, the plurality of air amplification modules 200 being arranged in series, and the interval between them being uniform in the connection duct 300. Each air amplifier module 200 includes at least two air amplifiers operating according to the coanda effect, one based on which, when inhaling, increases the amount of inhalation output by the air amplifier by a factor of three. The first air amplifier 230 and the second air amplifier 240 are arranged in parallel in the air amplifying module 200, i.e. the air flow entering the air amplifying module 200 is split into two parts to pass through the air amplifiers, one part of the incoming air flow passing through one of the amplifiers and the other part of the incoming air flow passing through the other amplifier, the special arrangement of the parallel air amplifiers in the air amplifying module 200 simplifying the air flow in the connecting duct 300. Furthermore, this arrangement enables significant restriction of turbulence entering and exiting the air amplification module 200, further simplifying flow and limiting vacuum or air flow losses, etc. The division of the air flow may be equal or may be divided into unequal portions, and the division of the air flow into the air amplification module 200 may be made or processed to divide the incoming air flow as desired, depending on the configuration of the base 220 of the air amplification module 200.
The type of air amplifier (here the coanda effect) and the particular arrangement of the air amplifiers (here the parallel arrangement) in the air amplifier module 200 provide a suction device that maintains a large flow of air while maintaining an optimal vacuum. Thus, the air flow of the suction device according to the present utility model assists in sucking dust at the suction nozzle 400, with holes in the suction cup of the pneumatic sander. Furthermore, the vacuum provided by the suction device according to the utility model enables dust to be optimally sucked and efficiently transported to the dust recycling device. They have the disadvantage that the vacuum level decreases with increasing air flow, as compared to conventional coanda effect amplifiers which provide low air flow for high vacuum. The coanda effect air amplifier is obviously unsuitable for use in dust extraction devices where high airflow and vacuum are required. Thus, the parallel connection of at least two coanda effect air amplifiers achieves unexpected performance compatible with the inhalation system. The suction device according to the utility model provides a solution with low intake air consumption, good intake air flow and good vacuum. The size of the air amplifier may be selected based on application, system or shop constraints and user desires in terms of airflow, vacuum and intake air consumption.
The air amplification module 200 includes a base 220, the base 220 being made of a metal or plastic material. The base 220 may be machined at a first end to provide a housing 250 for connection with the connecting tube 300. The housing 250 is located on the air amplification module 200 side of the suction nozzle 400 of the suction device. The outer surface 251 of the base 220 near the second end of the air amplification module 200 may be configured to allow connection to another connection duct 300, the other connection duct 300 being directed toward the inhalation device 100 side of the inhalation device.
In one variation, the air amplification module 200 is integrated or embedded in the connection duct 300. Thus, the housing 250 and the outer surface 251 may be adjusted or modified.
The base 220 has a primary air inlet 260 which is then split into two air inlets 270, the air inlets 270 being rounded or tapered on the surface, the air inlets 270 being configured to split the flow of air entering the air amplification module 200 into two parts and direct the flow of air from each part to the air amplifier. The base 220 of the air amplification module 200 further includes at least one circular pressure chamber 280 mounted near each air inlet 270, two circular pressure chambers 280 being implemented near each air inlet 270 on both sides of each air inlet 270. The base 220 is configured to mate with the body 210 with the air amplifier, and the base 220 and the body 210 are configured such that the air amplifier is located opposite the air inlet 270, respectively.
The air amplifier and the air intake 270 are in fluid communication to allow inhaled air, i.e., air entering the air amplifier module 200, to flow through the air intake 270 and then through the air amplifier without losing air. In other words, the air amplifiers are placed in the air amplification module 200 in their respective receiving housings in an airtight manner. Since the first air amplifier 230 and the second air amplifier 240 are identical, the air amplifiers implemented in the air amplification module 200 are identical in structure and operation, or at least identical. However, they may have different dimensions according to variants not shown.
The air amplifiers are processed in the main body 210, and the main body 210 includes a second hole, i.e., an air outlet hole 290, of each air amplifier at an upper end of the air amplifier, i.e., an oriented end of the air amplification module 200 on the air outlet side, or on the suction device 100 side of the suction device. The outlet holes 290 are circular or tapered. The gas outlet holes 290 extend through the body 210, i.e., from one end to the other. The inside thereof extends the air outlet holes 290 through a gap 2100, and the gap 2100 connects the surface of the air outlet holes 290 to the bottom surface 2300 of the air amplifier, i.e., the surface of the air amplifier on the air inlet side of the air amplifier. The gap 2100 is configured to cause constriction of the air passage aperture between the air inlet 270 of the air amplification module 200 and the air outlet 290 of the air amplifier to achieve a desired connector effect. The gap 2100 has a larger radius, which is chosen to optimize the performance of the coanda effect. Furthermore, depending on the size and desired performance of the air amplifier, the gap 2100 has an aperture or thickness of, for example, about 1-5 mm, with the gap 2100 preferably exhibiting an aperture of 3 mm.
A slot 2200 installed at the connection between the base 220 of the air amplification module 200 and the main body 210 connects at least one circular pressure chamber 280 to the main air inlet 260. The slot 2200 forms a supplemental air inlet to the air amplifier that is generally perpendicular to the longitudinal axes of the air inlet 270 and the air outlet 290. The geometry of the slot 2200 is selected to optimize the performance of the coanda effect, adjacent to the gap 2100 of the air amplifier, with the slot 2200 preferably exhibiting a width of 0.07mm, depending on the size of the air amplifier and the desired performance, with the slot 2200 having a width or thickness of 0.05-0.1 mm. Thus, the slot 2200 allows compressed air to enter between the air inlet 270 and the air outlet 290 at the gap 2100 to achieve the desired coanda effect. The coanda effect obtained in the air amplifier allows the air to be accelerated into the air amplifier, the vacuum and the air flow being increased in a simple manner. Thus, implementing two air amplifiers may improve the suction performance of the suction device.
The air sucked from the suction nozzle 400 is transferred to the air amplification module 200 through the connection duct 300. The air sucked through the suction nozzle 400 constitutes an inlet air flow, and the inlet air flow entering the air amplifier may represent only a portion of the entire inlet air flow entering the air amplifier module 200 because the air amplifier module 200 has at least two air amplifiers arranged in parallel. The circular pressure chamber 280 is connected to the integral compressed air supply network 500 and provides additional pressurized intake air flow at the junction between the intake 270 and the gap 2100 through the slot 2200. Thus, at the outlet of the air amplifier, i.e., at the outlet aperture 290, the outlet airflow is comprised of the sum of the inlet airflow and the additional pressurized airflow, and the velocity of the outlet airflow is higher than the velocity of the inlet airflow due to the contraction of the additional pressurized airflow under pressure by the gap 2100.
The introduction of additional pressurized air flow between the air inlet 270 and the gap 2100 through the slot 2200 accelerates and "bends" the air flow to the wall of the air outlet 290, causing the air flow to stick almost to the wall of the air outlet 290, and also creates an induced air flow, thereby accelerating the overall output air flow of the air amplifier. In other words, air delivered under pressure through slot 2200 is maintained adjacent the wall of air outlet 290. Thus, the velocity of the air at the walls of the air outlet 290 is determined by the drawing of air into the center of the air outlet 290.
The inlet air flow and the additional pressurized air flow deliver the sucked dust to the suction nozzle 400, and the acceleration of the air flow provided by the air amplifier can effectively deliver the dust from the suction nozzle 400 to the suction device 100 without causing suction loss. The air amplifier also provides sufficient vacuum and optimal air flow to deliver aluminum dust, particularly when the pneumatic sander 700 is used in a sheet metal repair shop, the pneumatic sander 700 is connected to a pneumatic suction device, and the pneumatic sander 700 and pneumatic suction device are connected to the entire compressed air supply network 500. The pneumatic suction device provides high suction performance without significant air consumption of the entire compressed air supply network 500. Thus, other pneumatic devices used on the compressed air supply network 500 are not disturbed by the operation of the sanding system.
Compared with the prior art, the utility model can provide the best air suction performance by additionally arranging the air amplifying module, generates high vacuum for the air amplifier while maintaining the consumption of the contained air, and limits the vacuum and air flow loss.
The present utility model has been described in detail with reference to the embodiments, but the present utility model is not limited thereto, and various modifications may be made without departing from the spirit of the present utility model.
Claims (4)
1. A novel pneumatic suction device, comprising: the air sucking device comprises an air sucking device (100), an air amplifying module (200), a connecting pipeline (300), a sucking nozzle (400), a compressed air supply network (500), an air supply pipeline (600) and a pneumatic sander (700), wherein the air sucking device (100) is connected with the sucking nozzle (400) through the connecting pipeline (300), the air amplifying module (200) is connected with the connecting pipeline (300) in an embedded mode, the compressed air supply network (500) is connected with the air amplifying module (200) through the air supply pipeline (600), the connecting pipeline (300) and the pneumatic sander (700), the compressed air supply network (500) is connected with the air sucking device (100), and the pneumatic sander (700) is connected with the sucking nozzle (400);
wherein the air amplification module (200) comprises: the device comprises a main body (210), a base (220), a first air amplifier (230), a second air amplifier (240), a shell (250), a main air inlet (260), an air inlet (270), a circular pressure chamber (280), an air outlet hole (290), a gap (2100), a slot (2200) and a bottom surface (2300), wherein the main body (210) is connected with the base (220) in a matched manner, the first air amplifier (230) and the second air amplifier (240) are connected with the inside of the main body (210) and the base (220), the shell (250) is connected with the inside of the base (220), the shell (250) is connected with a connecting pipeline (300), the shell (250) is connected with the main air inlet (260), the main air inlet (260) is connected with the air inlet (270), the air inlet (270) is arranged at the lower ends of the first air amplifier (230) and the second air amplifier (240), the circular pressure chamber (280) is connected with the air inlet (270) through the slot (2200), the air inlet (270) and the circular pressure chamber (280) are arranged inside the base (220), the first air amplifier (230) is arranged at the upper air outlet hole (290) and the lower end (2100), the slot (2200) is arranged in the bottom surface (2300), the bottom surface (2300) is connected with the gap (2100), the surface of the air inlet (270) is of a circular or conical structure, and the air outlet hole (290) is of a circular or conical structure.
2. A novel pneumatic suction device according to claim 1, wherein: the aperture or thickness of the gap (2100) is 1-5 mm, and the width or thickness of the slot (2200) is 0.05-1 mm.
3. A novel pneumatic suction device according to claim 1, wherein: an outer surface (251) is arranged on the shell (250), and the shell (250) and the outer surface (251) are of adjustable structures.
4. A novel pneumatic suction device according to claim 1, wherein: the air amplification module (200) is one or a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320049448.7U CN219310921U (en) | 2023-01-09 | 2023-01-09 | Novel pneumatic suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320049448.7U CN219310921U (en) | 2023-01-09 | 2023-01-09 | Novel pneumatic suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219310921U true CN219310921U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320049448.7U Active CN219310921U (en) | 2023-01-09 | 2023-01-09 | Novel pneumatic suction device |
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| Country | Link |
|---|---|
| CN (1) | CN219310921U (en) |
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2023
- 2023-01-09 CN CN202320049448.7U patent/CN219310921U/en active Active
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