CN213976082U

CN213976082U - Negative pressure suction device

Info

Publication number: CN213976082U
Application number: CN202022618506.2U
Authority: CN
Inventors: 朱伟强
Original assignee: Zhu Suihui
Current assignee: Zhu Suihui
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-08-17
Anticipated expiration: 2030-11-13

Abstract

A negative pressure suction device is characterized by comprising an air inlet part, an air suction part and an air outlet part; the air inlet part is provided with an air inlet pipeline which is communicated with a positive pressure air source, the air suction part is provided with an air suction pipeline which is arranged in a run-through manner, and the air outlet part is provided with an air outlet pipeline which is arranged in a run-through manner; the air suction piece and the air outlet piece are both arranged on the air inlet piece, and the air suction pipeline is communicated with the air outlet pipeline; still be equipped with a plurality of gas pockets on the piece of giving vent to anger, a plurality of gas pockets all switch-on pipeline and admission line of giving vent to anger to the one end that a plurality of gas pockets switch-on were all towards the one end slope setting of keeping away from the admission piece on the piece of giving vent to anger.

Description

Negative pressure suction device

Technical Field

The utility model relates to a suction equipment technical field specifically is a negative pressure suction device.

Background

Negative pressure suction device uses compressed air as the power supply, because its high efficiency, clear advantage is widely used in the transport of trades light material such as chemical industry, medicine, plastic, food, electron, weaving and packing, for example: chips, scraps, pills, granules, and the like.

Traditional suction device is through putting through trachea and air pump, and the air pump bleeds, makes the trachea other end directly produce the negative pressure, utilizes this negative pressure suction object, but the object that this mode can be taken out will need to get into the trachea, long-term the use can lead to the interior deposition of trachea or jam.

Therefore, there is a need for an improvement to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a negative pressure suction device can effectively solve above-mentioned problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme:

a negative pressure suction device comprises an air inlet part, an air suction part and an air outlet part; the air inlet part is provided with an air inlet pipeline which is communicated with a positive pressure air source, the air suction part is provided with an air suction pipeline which is arranged in a run-through manner, and the air outlet part is provided with an air outlet pipeline which is arranged in a run-through manner; the air suction piece and the air outlet piece are both arranged on the air inlet piece, and the air suction pipeline is communicated with the air outlet pipeline; still be equipped with a plurality of gas pockets on the piece of giving vent to anger, it is a plurality of the gas pocket all switches on pipeline and the admission line of giving vent to anger to it is a plurality of the one end that the gas pocket switches on to the pipeline of giving vent to anger all sets up towards the one end slope of keeping away from the piece of giving vent to anger on the piece.

Preferably, the air inlet part is also provided with a through hole communicated with the air inlet pipeline; the air suction pipe is communicated with the through hole, one end of the air outlet piece can extend into the through hole and form a closed cavity with the through hole, the air inlet pipe is communicated with the closed cavity, the air outlet pipe is communicated with the air suction pipe, and the air holes are communicated with the air outlet pipe and the closed cavity.

Preferably, the air holes are obliquely arranged in a swinging manner around the axis of the air outlet piece, and the inclination directions of the air holes are the same.

Preferably, the swing angle of the air hole is 35 °.

Preferably, the air outlet piece is further provided with a conical pipeline, one end of the conical pipeline is communicated with the air outlet pipeline, and the other end of the conical pipeline is communicated with the air suction pipeline; the inner diameter of the air outlet pipeline is smaller than that of the air suction pipeline, and the inner diameter of one end, connected with the air outlet pipeline, of the conical pipeline is smaller than that of one end, connected with the air suction pipeline, of the conical pipeline.

Preferably, go out the gas spare and include the toper tube head, connect the pipe shaft on the toper tube head and be the annular and locate the stopper on the pipe shaft, the pipeline of giving vent to anger is located in the pipe shaft, the toper pipeline is located in the toper tube head, the tip of toper tube head with the pipe shaft is connected, the main aspects external diameter of toper tube head with the internal diameter of through-hole is the same, the external diameter of stopper with the diameter of through-hole equals, toper tube head and stopper all can stretch into joint in the through-hole, toper tube head, stopper and through-hole enclose and close the airtight cavity of formation.

Preferably, the number of the air holes is 8, the diameters of the air holes are all 1mm, the air holes are circumferentially and uniformly distributed on the pipe body, and the inner diameter of the air inlet pipeline is 10 mm.

Preferably, the diameter of the through hole is larger than the diameter of the suction duct.

Preferably, the air inlet device further comprises a sealing ring, wherein the sealing ring is arranged at the clamping position of the limiting block and the air inlet part, and the limiting block blocks the through hole.

(III) advantageous effects

The utility model has the advantages as follows:

a negative pressure suction device is characterized by comprising an air inlet part, an air suction part and an air outlet part; the air inlet part is provided with an air inlet pipeline which is communicated with a positive pressure air source, the air suction part is provided with an air suction pipeline which is arranged in a run-through manner, and the air outlet part is provided with an air outlet pipeline which is arranged in a run-through manner; the air suction piece and the air outlet piece are both arranged on the air inlet piece, and the air suction pipeline is communicated with the air outlet pipeline; the air outlet piece is also provided with a plurality of air holes which are communicated with the air outlet pipeline and the air inlet pipeline, one ends of the air holes communicated with the air outlet pipeline are obliquely arranged towards one end of the air outlet piece far away from the air inlet piece, positive pressure air is injected through the air inlet pipeline to extrude the air holes and spray the air holes to the air outlet pipeline from the air holes, the air flow is accelerated, the pressure is reduced, and then negative pressure is formed, so that the air suction pipeline communicated with the air outlet piece generates adsorption force; compared with the prior art, the negative pressure suction device enables sucked objects and dust to be discharged through the air outlet pipeline, and the sucked objects and dust are prevented from passing through the air supply pipeline, so that dust deposition or blockage in the air supply pipeline is caused.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows a schematic diagram of the overall structure of the present invention;

fig. 2 shows a schematic diagram of the overall structure of the present invention;

FIG. 3 shows a cross-sectional view A-A of FIG. 2;

fig. 4 shows a schematic structural view of an air intake member in the present invention;

fig. 5 shows a schematic structural view of the air outlet member of the present invention;

fig. 6 shows a schematic view of the swing angle of the air hole of 35 ° in the present invention;

fig. 7 shows a schematic diagram of an inclined structure of the air hole in the present invention.

In the figure: the air inlet pipe comprises an air inlet part 1, an air inlet pipeline 10, a through hole 11, an air suction part 2, an air suction pipeline 20, an air outlet part 3, an air outlet pipeline 30, an air hole 31, a conical pipeline 32, a conical pipe head 33, a pipe body 34, a limiting block 35, a sealed cavity 4 and a sealing ring 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the drawings, the negative pressure suction device comprises an air inlet part 1, an air suction part 2 and an air outlet part 3; an air inlet pipeline 10 is arranged on the air inlet part 1, the air inlet pipeline 10 is communicated with a positive pressure air source, an air inlet pipeline 20 which is arranged in a run-through mode is arranged on the air inlet part 2, and an air outlet pipeline 30 which is arranged in a run-through mode is arranged on the air outlet part 3; the air suction piece 2 and the air outlet piece 3 are both arranged on the air suction piece 1, and the air suction pipeline 20 is communicated with the air outlet pipeline 30; still be equipped with a plurality of gas pockets 31 on the piece of giving vent to anger 3, a plurality of gas pockets 31 all switch on pipeline 30 and the admission line 10 of giving vent to anger to the one end that a plurality of gas pockets 31 switch on to pipeline 30 all sets up towards the one end slope of keeping away from the piece 1 of giving vent to anger on the piece 3 of giving vent to anger.

Specifically, when the user uses this negative pressure suction device, need obtain the power supply through external positive pressure gas equipment, get into from inlet channel 10 when the positive pressure gas, will extrude gas pocket 31 and spout to outlet channel 30 from gas pocket 31, and then make the gaseous velocity of flow increase in the outlet channel 30, according to hydrodynamics can know, its atmospheric pressure reduces, form the pressure difference with external atmosphere, consequently form the negative pressure and make external air be inhaled to outlet channel 30 in through the pipeline 20 that breathes in, utilize this negative pressure can aspirate the object, and the object is discharged from outlet channel 30, reach the purpose of suction, and avoid the material and the dust of suction to get into inlet channel 10 through gas pocket 31, lead to the interior deposition of dust or jam of inlet channel 10.

Further, in order to make the positive pressure gas uniformly sprayed out from each air hole 31, as shown in the attached drawings, in the present invention, the air inlet member 1 is further provided with a through hole 11 communicated with the air inlet pipe 10; the air suction pipeline 20 is communicated with the through hole 11, one end of the air outlet part 3 can extend into the through hole 11 and form a closed cavity 4 with the through hole 11, the air inlet pipeline 10 is communicated with the closed cavity 4, the air outlet pipeline 30 is communicated with the air suction pipeline 20, and the air holes 31 are communicated with the air outlet pipeline 30 and the closed cavity 4.

Further, the embodiment of the utility model provides a structure of realizing airtight cavity 4, as shown in the drawing, it includes toper tube head 33 to give vent to anger piece 3, connect the pipe shaft 34 on toper tube head 33 and be the stopper 35 that the annular was located on the pipe shaft 34, pipeline 30 of giving vent to anger locates in the pipe shaft 34, toper pipeline 32 is located in toper tube head 33, the tip and the pipe shaft 34 of toper tube head 33 are connected, the main aspects external diameter of toper tube head 33 is the same with the internal diameter of through-hole 11, the external diameter of stopper 35 equals with the diameter of through-hole 11, toper tube head 33 and stopper 35 all can stretch into joint in the through-hole 11, toper tube head 33, stopper 35 and through-hole 11 enclose to close and form airtight cavity 4.

Further, in order to improve the negative pressure effect, as shown in the drawings, in the present invention, a plurality of air holes 31 are all obliquely arranged around the axis of the air outlet member 3, and the oblique directions are the same; in addition, the included angle between the air hole 31 and the vertical surface is 35 degrees, and the included angle between the air hole 31 and the horizontal plane is equal to the inclination of the outer inclined surface of the conical pipe head 33; through a plurality of air holes 31 with the same inclination direction, the air flow sprayed out of the air holes 31 alternately forms spiral air flow, the central flow rate of the spiral air flow is increased, the atmospheric pressure at the center of the corresponding spiral air flow is smaller, and larger air pressure difference can be formed with the outside, so that the generated negative pressure suction effect is stronger.

Furthermore, in order to accelerate the gas flow in the gas outlet pipe 30, further increase the adsorption force and improve the suction effect, as shown in the drawing, the utility model discloses a conical pipe 32 is also arranged on the gas outlet member 3, one end of the conical pipe 32 is connected with the gas outlet pipe 30, and the other end of the conical pipe 32 is connected with the gas suction pipe 20; the inner diameter of the outlet pipe 30 is smaller than that of the suction pipe 20, and the inner diameter of the end of the tapered pipe 32 connected with the outlet pipe 30 is smaller than that of the end of the tapered pipe 32 connected with the suction pipe 20; as is well known, under the unchangeable condition of fluid flow, the flow surface narrows, will make fluidic velocity of flow increase, consequently, the embodiment of the utility model discloses an in, through making the internal diameter of the pipeline of giving vent to anger 30 be less than the internal diameter of the pipeline of breathing in 20, further increase the pressure in the pipeline of breathing in 20 to improve the negative pressure effect.

Further, in order to be less than the sectional area of admission line 10 for the total area sum through a plurality of gas pockets 31 to reach the purpose of further accelerating the air current, as shown in the attached drawing, the utility model discloses in, a plurality of gas pockets 31's quantity is 8, and the diameter is 1mm, and be circumference evenly distributed on pipe shaft 34, and the internal diameter of admission line 10 is 10 mm.

Further, when stretching into through-hole 11 joint for the main aspects of tapered tube head 33, can offset with inspiratory tube 20 to it is automatic spacing to realize, as shown in the drawing, the utility model discloses in, the diameter of through-hole 11 is greater than inspiratory tube 20's diameter.

Further, in order to avoid

stopper

35 and 1 joint department of admitting air to have the clearance to lead to unable airtight space that forms, reduce the negative pressure effect, as shown in the drawing, the utility model discloses in, still include sealing washer 5, sealing washer 5 sets up in

stopper

35 and 1 joint department of admitting air and makes stopper 35 shutoff through-hole 11.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The negative pressure suction device is characterized by comprising an air inlet part (1), an air suction part (2) and an air outlet part (3);

an air inlet pipeline (10) is arranged on the air inlet part (1), the air inlet pipeline (10) is communicated with a positive pressure air source, an air suction pipeline (20) which is arranged in a penetrating way is arranged on the air suction part (2), and an air outlet pipeline (30) which is arranged in a penetrating way is arranged on the air outlet part (3); the air suction piece (2) and the air outlet piece (3) are both arranged on the air inlet piece (1), and the air suction pipeline (20) is communicated with the air outlet pipeline (30); still be equipped with a plurality of gas pockets (31) on the piece of giving vent to anger (3), it is a plurality of gas pocket (31) all switch-on pipeline of giving vent to anger (30) and admission line (10), and it is a plurality of one end that gas pocket (31) switch-on were all towards the piece of giving vent to anger (30) on the one end slope setting of keeping away from the piece of giving vent to anger (1).

2. A negative pressure suction arrangement according to claim 1, characterized in that the air inlet (1) is further provided with a through hole (11) communicating with an air inlet duct (10); inhale pipeline (20) and through-hole (11) switch-on, go out gas spare (3) one end and can stretch into in through-hole (11) and with form airtight cavity (4) between through-hole (11), admission line (10) switch-on extremely airtight cavity (4), give vent to anger pipeline (30) with inhale pipeline (20) switch-on, it is a plurality of gas pocket (31) all switch-on give vent to anger pipeline (30) and airtight cavity (4).

3. The negative pressure suction device according to claim 1, wherein the plurality of air holes (31) are arranged in an inclined manner in a swinging manner around the axis of the air outlet member (3) and in the same inclined direction.

4. A negative pressure suction device according to claim 3, characterized in that the swing angle of the air hole (31) is 35 °.

5. A negative pressure suction device according to claim 2, wherein the air outlet member (3) is further provided with a tapered pipe (32), one end of the tapered pipe (32) is communicated with the air outlet pipe (30), and the other end of the tapered pipe (32) is communicated with the air suction pipe (20); the inner diameter of the air outlet pipeline (30) is smaller than that of the air suction pipeline (20), and the inner diameter of one end, connected with the air outlet pipeline (30), of the conical pipeline (32) is smaller than that of one end, connected with the air suction pipeline (20), of the conical pipeline (32).

6. The negative pressure suction device as claimed in claim 5, wherein the air outlet member (3) comprises a conical pipe head (33), a pipe body (34) connected to the conical pipe head (33), and a limiting block (35) annularly arranged on the pipe body (34), the air outlet pipeline (30) is arranged in the pipe body (34), the conical pipeline (32) is arranged in the conical pipe head (33), the small end of the conical pipe head (33) is connected with the pipe body (34), the outer diameter of the large end of the conical pipe head (33) is the same as the inner diameter of the through hole (11), the outer diameter of the limiting block (35) is equal to the diameter of the through hole (11), the conical pipe head (33) and the limiting block (35) can extend into the through hole (11) to be clamped, the conical pipe head (33), the limiting block (35) and the through hole (11) are enclosed to form a closed cavity (4).

7. A negative pressure suction device according to claim 3, wherein the number of the plurality of air holes (31) is 8, the diameter of each air hole is 1mm, the air holes are circumferentially and uniformly distributed on the pipe body (34), and the inner diameter of the air inlet pipeline (10) is 10 mm.

8. A negative pressure suction device according to claim 2, characterized in that the diameter of the through hole (11) is larger than the diameter of the suction duct (20).

9. The negative pressure suction device according to claim 6, further comprising a sealing ring (5), wherein the sealing ring (5) is arranged at the joint of the limiting block (35) and the air inlet member (1) and enables the limiting block (35) to block the through hole (11).