CN220687702U - Mute vacuum tube and vacuum generator - Google Patents

Abstract

The utility model provides a mute vacuum tube and a vacuum generator, wherein the mute vacuum tube is inserted into an exhaust pipe of the vacuum generator; the silencing vacuum tube comprises a silencing sleeve, a first tube and a second tube, wherein the silencing sleeve and the first tube are respectively connected with two ends of the second tube; the first pipe one end sets up the access head, the second pipe sets up the access mouth, the access head inserts in the access mouth, set up the amortization cotton in the amortization cover. The gas passes through the first pipe, the second pipe and the silencing sleeve in sequence, the first pipe is inserted into the second pipe, the length of the air passage can be increased, the inner diameter of the air inlet is increased by increasing the length of the air passage and keeping the same, the gas needs to pass through a longer air passage through the air passage, the average flow speed is reduced, the silencing sleeve is arranged at the gas outlet of the second pipe, silencing cotton is arranged on the silencing sleeve, the sound of the outlet of the second pipe can be reduced through the silencing cotton, and accordingly the noise decibel value of the vacuum pipe is reduced as a whole.

Description

Mute vacuum tube and vacuum generator

Technical Field

The application relates to the technical field of vacuum generators, in particular to a mute vacuum tube and a vacuum generator.

Background

The vacuum generator utilizes a positive pressure air source to generate negative pressure, which is a novel, efficient, clean, economical and small-sized vacuum component, and can make it very easy and convenient to obtain negative pressure at the place where compressed air exists or at the place where positive and negative pressure are simultaneously needed in a pneumatic system. Vacuum generators are widely used in industrial automation in many fields such as machinery, electronics, packaging, printing, plastics, robots, etc.

The vacuum generator generally needs to spray high-pressure gas at a high speed for a long time at the nozzle outlet, and form a negative pressure near the nozzle outlet, and to maintain the negative pressure environment, the high-pressure gas needs to be discharged for a long time, and during this time, the vacuum generator causes high-decibel noise pollution, and the long-time working under the working environment causes damage to human bodies.

Disclosure of Invention

The technical problem to be solved by the application is that the vacuum generator generates high-decibel noise pollution when discharging high-pressure gas, and the long-time working under the working environment can cause damage to human bodies.

To solve the above-mentioned problems, to solve the above-mentioned technical problems or at least partially solve the above-mentioned technical problems, the present application provides a mute vacuum tube and a vacuum generator.

In a first aspect, the utility model provides a mute vacuum tube, which comprises a silencing sleeve, a first tube and a second tube, wherein the silencing sleeve and the first tube are respectively connected with two ends of the second tube;

the first pipe one end sets up the access head, the second pipe sets up the access mouth, the access head inserts in the access mouth, set up the amortization cotton in the amortization cover.

Preferably, the silencing sleeve comprises a shell and an inner sleeve, the shell is sleeved outside the inner sleeve, the silencing cotton is arranged in the shell,

one end of the inner sleeve is propped against the second pipe, and the other end of the inner sleeve is propped against the silencing cotton.

Preferably, a conical portion is arranged on the access head, a groove portion is arranged in the access port, the conical portion is matched with the groove portion in shape, and the conical portion is in contact with the groove portion.

Preferably, a first air passage is arranged in the first pipe, a second air passage is arranged in the second pipe, and the first air passage is communicated with the second air passage.

Preferably, the radius of the first air passage is 0.05mm-0.45mm, and the radius of the first air passage is the same as that of the second air passage;

the length of the first air passage is 14mm-16mm, and the length of the second air passage is 14mm-16mm.

Preferably, a flare is arranged at one end of the first pipe far away from the second pipe;

the radius of the bell mouth is 0.5mm-1.5mm.

Preferably, the access port is provided with a clamping hole, and the clamping hole is used for clamping and matching the marble.

Preferably, the second tube comprises a first portion and a second portion, the first portion being integrally formed with the second portion;

the outer diameter of the first part is larger than that of the second part, and anti-skid grains are arranged on the periphery of the first part.

Preferably, the second portion and the first pipe connection position are respectively provided with a matched first thread structure, one end of the first pipe away from the second pipe is provided with a second thread structure, and the first portion and the silencing sleeve are respectively provided with a matched third thread structure.

In a second aspect, the utility model also provides a vacuum generator, which is characterized by comprising the mute vacuum tube and a generator main body, wherein the mute vacuum tube is connected with the generator main body.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

the silence vacuum tube that this embodiment provided includes first pipe, second pipe, amortization cover, and gaseous first pipe inserts in the second pipe through first pipe, second pipe, amortization cover in proper order, and the length of multiplicable air flue is through increasing air flue length and keeping the same income gas port internal diameter size, through increasing the air flue, makes gaseous needs through longer air flue, and average velocity of flow reduces, sets up amortization cover at the gas exit of second pipe, sets up amortization cotton on the amortization cover, through the sound of the exit of the reducible second pipe of amortization cotton to the noise decibel value of whole reduction vacuum tube.

Further, the whole air passage of the mute vacuum tube is lengthened, the inner diameter of the air passage opening is the same, the air passage is increased, the air passage opening between the first tube and the second tube is the same, the flow speed can be enhanced, the air consumption is reduced, and the purpose of high flow is realized.

The blast pipe of vacuum generator sets up silence vacuum tube, and vacuum generator can output high-speed air current in the position of blast pipe, and the growth air flue of accessible first pipe and second pipe to let the air current slow down in the air flue, thereby weaken the noise that the blast pipe exhaust produced, simultaneously, the setting of amortization cover is at the gas outlet of second pipe, but greatly reduced noise.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a mute vacuum tube according to an embodiment of the present application;

fig. 2 is an exploded schematic view of a first tube and a second tube of a mute vacuum tube according to an embodiment of the present application;

fig. 3 is a schematic cross-sectional structure of a first tube and a second tube of a mute vacuum tube according to an embodiment of the present disclosure;

fig. 4 is an exploded view of a silencer sleeve of a silencing vacuum tube according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a vacuum generator according to an embodiment of the present application.

Reference numerals illustrate:

100. a vacuum generator; 1. a mute vacuum tube;

11. a silencing sleeve; 111. silencing cotton; 112. a housing; 113. an inner sleeve;

12. a first tube; 121. an access head; 1211. a taper portion; 122. a horn mouth; 123. a first airway;

13. a second tube; 131. an access port; 1311. a groove portion; 132. a second airway;

14. an elastic ring.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Referring to fig. 1-4, in a first aspect, the present utility model provides a mute vacuum tube 1, which includes a mute sleeve 11, a first tube 12 and a second tube 13, wherein the mute sleeve 11 and the first tube 12 are respectively connected with two ends of the second tube 13;

an access head 121 is arranged at one end of the first pipe 12, an access port 131 is arranged on the second pipe 13, the access head 121 is inserted into the access port 131, and silencing cotton 111 is arranged in the silencing sleeve 11.

Specifically, the gas passes through the first pipe 12, the second pipe 13 and the silencing sleeve 11 in sequence, the first pipe 12 is inserted into the second pipe 13, the length of the air passage can be increased, the length of the air passage is increased, the same inner diameter of the air inlet is kept, the gas needs to pass through a longer air passage through the increase of the air passage, the average flow velocity is reduced, the silencing sleeve 11 is arranged at the gas outlet of the second pipe 13, the silencing cotton 111 is arranged on the silencing sleeve 11, and the sound at the outlet of the second pipe 13 can be reduced through the silencing cotton 111, so that the noise decibel value of the vacuum pipe is reduced as a whole.

The access head 121 is provided with a taper portion 1211, the access port 131 is provided with a groove portion 1311 therein, the taper portion 1211 is matched with the groove portion 1311 in shape, and the taper portion 1211 is in contact with the groove portion 1311. A first air passage 123 is formed in the first pipe 12, a second air passage 132 is formed in the second pipe 13, and the first air passage 123 is communicated with the second air passage 132.

Specifically, the tapered portion 1211 is disposed at one end of the first air passage 123, the groove portion 1311 is disposed at one end of the second air passage 132, the tapered portion 1211 contacts the groove portion 1311, and the first air passage 123 communicates with the second air passage 132, and the conventional air passage is generally disposed as a single air passage, and the length of the air passage is integrally extended by disposing the two air passages connected.

As an embodiment, the position of the access port 131 is provided with a clamping hole, and the clamping hole is used for clamping and matching with the marble. Specifically, the marble is arranged on the inner wall of the exhaust pipe into which the mute vacuum tube 1 is inserted, and the vacuum tube is clamped into the exhaust pipe through the cooperation of the marble and the clamping hole, so that the vacuum tube is prevented from being separated when in operation.

The radius of the first air passage 123 is 0.05mm-0.45mm, the radius of the first air passage 123 is the same as that of the second air passage 132, the length of the first air passage 123 is 14mm-16mm, and the length of the second air passage 132 is 14mm-16mm.

Specifically, the whole air passage of the mute vacuum tube 1 is lengthened, the inner diameter of the air passage opening is the same, the air passage is increased, the air passage opening between the first tube 12 and the second tube 13 is the same, the flow speed can be enhanced, the air consumption is reduced, and the purpose of high flow is realized.

The silencing sleeve 11 comprises a shell 112 and an inner sleeve 113, the shell 112 is sleeved outside the inner sleeve 113, the silencing cotton 111 is arranged in the shell 112, one end of the inner sleeve 113 abuts against the second pipe 13, and the other end abuts against the silencing cotton 111.

Specifically, the outer casing 112 is sleeved on the inner casing 113, the outer diameter of the inner casing 113 is smaller than the inner diameter of the outer casing 112, the length of the outer casing 112 is larger than that of the inner casing 113, the silencing cotton 111 is installed at the air outlet of the outer casing 112, a limiting mechanism is arranged at the air outlet of the outer casing 112 to limit the position of the silencing cotton 111, the silencing cotton 111 is located between the outer casing 112 and the inner casing 113, namely, the silencing cotton 111 is propped against the air outlet of the outer casing 112 by the inner casing 113, a propping ring is arranged at the edge of the inner casing 113, the periphery of the propping ring is propped against the inner wall of the outer casing 112, the propping ring can prevent the inner casing 113 from shaking at the outer casing 112, meanwhile, the propping ring can reduce the passing of air between the inner casing 113 and the outer casing 112, and reduce the occurrence of noise.

The end of the first tube 12 remote from the second tube 13 is provided with a flare 122, wherein the radius of the flare 122 is 0.5mm-1.5mm.

Specifically, the end of the first tube 12 inserted into the exhaust tube is configured as a bell mouth 122, that is, the opening of the first tube 12 gradually narrows toward the inside, and through the narrowed air hole, the flow rate of the gas can be reduced, and the speed of the gas entering the mute vacuum tube 1 can be slowed down, thereby reducing the decibel value of the noise.

The second tube 13 includes a first portion and a second portion, the first portion and the second portion being integrally formed; the outer diameter of the first part is larger than that of the second part, and anti-skid grains are arranged on the periphery of the first part. Specifically, the first portion is connected to the second pipe 13, and the second portion extends into the exhaust pipe of the vacuum generator 100, the first portion being exposed to the outside; through the anti-skid patterns, the user can unscrew the mute vacuum tube 1 by hand.

The connection position of the second part and the first pipe 12 is respectively provided with a matched first thread structure, one end of the first pipe 12, which is far away from the second pipe 13, is provided with a second thread structure, and the first part and the silencing sleeve 11 are respectively provided with a matched third thread structure. Specifically, the second portion is connected to the first pipe 12 through a first thread structure, the first pipe 12 is inserted into the exhaust pipe, the first pipe 12 is connected to the exhaust pipe through a thread structure, that is, a thread structure matching with the second thread structure of the first pipe 12 is provided in the exhaust pipe, the first portion is connected to the muffler 11 through a third thread structure, and the muffler 11 can be rotated along the third thread structure to be separated from the first portion.

The first portion sets up two accommodation grooves for holding elastic ring 14, the one end that second pipe 13 was kept away from to first pipe 12 also sets up the accommodation groove for holding elastic ring 14, and elastic ring 14 can let vacuum tube and blast pipe inner wall interference fit, reduces gas and passes through between vacuum tube and the blast pipe inner wall, reduces the probability of gas generation noise.

Referring to fig. 5, in a second aspect, the present utility model further provides a vacuum generator 100, which is characterized by comprising the mute vacuum tube 1 and a generator main body, where the mute vacuum tube 1 is connected to the generator main body.

Specifically, the exhaust pipe of the vacuum generator 100 is provided with the mute vacuum pipe 1, the vacuum generator 100 outputs high-speed air flow at the position of the exhaust pipe, and the air flow can be reduced in the air passage through the growth air passages of the first pipe 12 and the second pipe 13, so that noise generated by the exhaust of the exhaust pipe is reduced, and it can be understood that the air flow speed in the mute vacuum pipe 1 is lower than the air flow speed in the exhaust pipe, and the noise can be reduced. Meanwhile, the silencing sleeve 11 is arranged at the air outlet of the second pipe 13, so that noise can be greatly reduced.

In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.

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", 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

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 one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

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 attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. 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 present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," 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 should not be understood as necessarily being 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 one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The silencing vacuum tube is characterized by comprising a silencing sleeve, a first tube and a second tube, wherein the silencing sleeve and the first tube are respectively connected with two ends of the second tube;

the first pipe one end sets up the access head, the second pipe sets up the access mouth, the access head inserts in the access mouth, set up the amortization cotton in the amortization cover.

2. The mute vacuum tube according to claim 1, wherein the mute sleeve comprises a housing and an inner sleeve, the housing is sleeved outside the inner sleeve, the mute cotton is arranged inside the housing,

one end of the inner sleeve is propped against the second pipe, and the other end of the inner sleeve is propped against the silencing cotton.

3. The mute vacuum tube of claim 1, wherein the access head is provided with a cone portion, the access port is provided with a groove portion therein, the cone portion is matched with the groove portion in shape, and the cone portion is in contact with the groove portion.

4. The mute vacuum tube of claim 1, wherein a first air passage is provided in the first tube and a second air passage is provided in the second tube, the first air passage being in communication with the second air passage.

5. The mute vacuum tube of claim 4, wherein the radius of the first airway is 0.05mm to 0.45mm, the first airway being the same radius as the second airway;

the length of the first air passage is 14mm-16mm, and the length of the second air passage is 14mm-16mm.

6. The mute vacuum tube of claim 1, wherein an end of the first tube remote from the second tube is provided with a flare;

the radius of the bell mouth is 0.5mm-1.5mm.

7. The mute vacuum tube of claim 1, wherein the access port is provided with a detent hole for holding a mating marble.

8. The mute vacuum tube of claim 1, wherein the second tube comprises a first portion and a second portion, the first portion being integrally formed with the second portion;

the outer diameter of the first part is larger than that of the second part, and anti-skid grains are arranged on the periphery of the first part.

9. The mute vacuum tube of claim 8, wherein the second portion and the first tube connection location are provided with respective mating first screw thread structures, the first tube end remote from the second tube is provided with a second screw thread structure, and the first portion and the mute sleeve are provided with respective mating third screw thread structures.

10. A vacuum generator comprising a mute vacuum tube as claimed in any one of claims 1 to 9 in combination with a generator body, said mute vacuum tube being connected to said generator body.