CN113417827A

CN113417827A - Vacuum pump with self-adhesive air leakage prevention interface

Info

Publication number: CN113417827A
Application number: CN202110616036.2A
Authority: CN
Inventors: 杨俊丽
Original assignee: Individual
Current assignee: Shandong Shunhe New Material Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-09-21
Anticipated expiration: 2041-06-02
Also published as: CN113417827B

Abstract

The invention discloses a vacuum pump with a self-adhesive air leakage-proof interface, which belongs to the technical field of vacuum pumps and can improve air tightness at a joint by introducing a novel air inlet mechanism and simultaneously detect air leakage.

Description

Vacuum pump with self-adhesive air leakage prevention interface

Technical Field

The invention relates to the technical field of vacuum pumps, in particular to a vacuum pump with a self-adhesive air leakage prevention interface.

Background

The vacuum pump refers to a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method. In general, a vacuum pump is a device for improving, generating and maintaining a vacuum in a certain closed space by various methods.

Vacuum pumps can be basically classified into two types, i.e., a gas trap pump and a gas transfer pump, according to the operating principle of the vacuum pump. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.

With the development of vacuum applications, the variety of vacuum pumps has been developed in many ways, with pumping speeds ranging from a few tenths of liters per second to hundreds of thousands, millions of liters per second. With the increasing requirements of vacuum technology on the application pressure range in the production and scientific research fields, most vacuum pumping systems consisting of several vacuum pumps are required to jointly pump air to meet the requirements of the production and scientific research processes, and because the range of the working pressure related to the vacuum application department is wide, any type of vacuum pump cannot be completely suitable for all working pressure ranges, and different types of vacuum pumps can be used only according to different working pressure ranges and different working requirements. For convenience of use and the need for various vacuum processes, various vacuum pumps are sometimes combined according to their performance requirements and used in a block type.

At present the vacuum pump need work with external piping connection when using, but at the in-process of bleeding, because operating pressure is great, the phenomenon of not hard up gas leakage appears easily in the junction, in case the gas leakage condition takes place, not only can lead to bleeding the failure, can cause certain injury to the vacuum pump even.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a vacuum pump with a self-adhesive air leakage prevention interface, which can prevent the air leakage of the vacuum pump by introducing a novel air inlet mechanism, the air tightness is improved at the joint, meanwhile, the air leakage detection is carried out, once the air leakage condition occurs, the air firstly forces the attaching film to expand and swell, thereby squeezing the film pressing block to release the water-based pigment, carrying out color change prompt in the prompt bag after the water-based pigment is conveyed by the catheter, leading technicians to find air leakage in time and intuitively, meanwhile, redundant water-based pigment can act on the self-adhesive ring to force the self-adhesive ring to dissolve and trigger the gluing action, thereby the air inlet pipe and the external pipe are connected and sealed with high strength, the further leakage of the air is avoided, compared with the existing vacuum pump, the air leakage reminding device can achieve a good air leakage prevention effect and has an air leakage reminding function.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a vacuum pump with self-adhesive formula leak protection gas interface, includes the vacuum pump body, install admission mechanism on the vacuum pump body, admission mechanism includes intake pipe, leak protection gas cover and outer takeover, the intake pipe is installed on the air inlet, outer takeover is located the intake pipe upside and contacts, leak protection gas cover cup joints in intake pipe and the junction of outer takeover, leak protection gas cover is all inlayed in both ends inboard from top to bottom and is connected with the self-adhesion ring, and is a pair of be connected with the laminating membrane between the self-adhesion ring, laminating membrane outer end is connected with a plurality of evenly distributed's press mold block, and press mold block and intake pipe and the junction of outer takeover are corresponding, the suggestion bag that is connected with a plurality of evenly distributed is inlayed to leak protection gas cover outer end, be connected with the catheter between press mold block and the suggestion bag.

Further, both ends outside all inlays about leak protection gas cover and is connected with a plurality ofly and the corresponding design magnetism ball of self-adhesion ring, be connected with the elasticity pipeline between self-adhesion ring and the design magnetism ball, be connected with the shunt tubes between suggestion bag and the design magnetism ball, the extrusion design effect to self-adhesion ring can be triggered to design magnetism ball to improve the adhesive strength of self-adhesion ring and show and promote the gas tightness.

Further, the self-adhesion ring includes adhesive layer, water-soluble layer and pressfitting layer, water-soluble layer is connected in the adhesive layer and is kept away from the one end of stereotyping magnetic ball, the pressfitting layer is connected in the one end that the adhesive layer is close to the stereotyping magnetic ball, and normal condition is contacted with intake pipe and outer takeover by water-soluble layer and is played the isolation effect down, makes things convenient for the dismantlement separation of leak protection gas cover, after taking place gas leakage phenomenon, dissolves on the water-soluble layer under the effect of water pigment, then water-soluble layer is in the effect on pressfitting layer with intake pipe and outer takeover abundant contact carry out gluing.

Further, the pressfitting layer includes movable magnetic path, drain silk and outer preforming, movable magnetic path connects in the center department of adhesive layer, the drain silk is inlayed and is connected on movable magnetic path, and the drain silk both ends extend to elasticity pipeline and water soluble layer inboard respectively, outer preforming cover connects in movable magnetic path outer end and inconsistent with the outer terminal surface of adhesive layer, forms the magnetic repulsion effect between movable magnetic path and the design magnetic ball, and then carries water pigment to the water soluble layer after dissolving at the drain silk, and the adhesive layer is fully sticky with intake pipe and outer tub contact sticky under the magnetic repulsion effect, and outer preforming can fully extrude whole adhesive layer, is difficult for appearing the phenomenon that local area gluing effect is poor.

Furthermore, the shaped magnetic ball comprises a liquid containing ball, a fixed magnetic block, a powder containing sleeve and a hole sealing column, the liquid containing ball is embedded and connected on the air leakage preventing sleeve and communicated with the flow dividing pipe, the fixed magnetic block is embedded and connected with one side of the inner end of the liquid containing ball far away from the elastic pipeline, the powder containing sleeve is connected with the outer end of the fixed magnetic block, the powder containing sleeve is provided with a migration hole, the hole sealing column is inserted in the migration hole, and one end of the hole sealing column far away from the fixed magnetic block is connected with the press fit layer, the fixed magnetic block and the movable magnetic block keep the magnetic repulsion action, after the water-based pigment is conveyed by the shunt pipe, the water-based pigment is partially shunted to the self-adhesive ring through the elastic pipeline, the adhesive layer is far away from the shaping magnetic ball after the water-soluble layer is gradually dissolved, and the hole sealing column is pulled to gradually separate from the powder containing sleeve, so that the open refrigeration of the powder containing sleeve is finally realized, the water-based pigment is forced to freeze to shape the stretched elastic pipeline, and the high-strength long-term support for the self-adhesive ring is realized.

Furthermore, the length of the part of the hole sealing column in the powder containing sleeve is consistent with the thickness of the water soluble layer, saltpeter powder is filled in the powder containing sleeve, the hole sealing column is separated from the powder containing sleeve after the water soluble layer is fully dissolved, then the water-based pigment can be contacted with the saltpeter powder in the powder containing sleeve, and the saltpeter can absorb a large amount of heat when dissolved in water, so that the water in the elastic pipeline is forced to freeze and be shaped.

Further, the press mold piece includes outer lock liquid shell, porous fender layer, stock solution filler and many interior shaping silk, outer lock liquid shell is connected between laminating membrane and catheter, porous fender layer is inlayed and is connected in the position that outer lock liquid shell corresponds the catheter, the stock solution filler is filled in outer lock liquid shell inboard and is absorbed there is the water based pigment, interior shaping silk evenly connected is between porous fender layer and laminating membrane, and gas fills into in the laminating membrane and expands after the junction gas leakage to extrude the stock solution filler and release absorptive water based pigment, under the cooperation setting effect of stock solution filler and interior shaping silk, the laminating membrane only expands the extrusion in the regional expansion around the stock solution filler, avoids concentrating the expansion and leads to the hole to block up in porous fender layer region, causes the water based pigment release effect poor.

Furthermore, the outer liquid locking shell and the inner shaping wire are both made of hard materials, the porous blocking layer is made of hard permeable materials, and the liquid storage filler is made of elastic water-absorbing materials.

Further, the suggestion bag is including inlaying shell, discoloration layer and many drain fibers outward, inlay the shell outward and inlay and connect in leak protection gas cover outer end, discoloration layer connects in the outer opening part that inlays the shell, drain fiber evenly connects in discoloration layer inner, and after the press mold piece released water pigment, discoloration layer can absorb partial water pigment through drain fiber then the suggestion that discolours, and unnecessary water pigment passes through the shunt tubes and carries to in the design magnetic ball.

Furthermore, the color changing layer is made of white or light-colored water absorbing materials, and one end, far away from the color changing layer, of the liquid guide fiber extends to the inner side of the liquid guide pipe.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can be through introducing neotype air inlet mechanism, improve the gas tightness in the junction, leak gas detection simultaneously, in case the gas leakage condition takes place, gaseous laminating membrane inflation of at first forcing is bloated, thereby extrude the pressure membrane piece and release water pigment, water pigment carries out the suggestion of discolouing in the suggestion bag after the transport through the catheter, technical staff can be timely audio-visual discovery gas leakage, unnecessary water pigment can act on the self-adhesion ring simultaneously, force the self-adhesion ring part to dissolve the back and trigger sticky action, thereby carry out high strength connection to intake pipe and outer takeover and seal, avoid gaseous further leakage to go out, compare with current vacuum pump, good leak protection gas effect can be realized to the invention, has gas leakage warning function simultaneously.

(2) The both ends outside all is inlayed and is connected with a plurality ofly and the corresponding design magnetic ball of self-adhesion ring about the leak protection gas cover, is connected with the elasticity pipeline between self-adhesion ring and the design magnetic ball, is connected with the shunt tubes between suggestion bag and the design magnetic ball, and the design magnetic ball can trigger the extrusion design effect to the self-adhesion ring to improve the adhesive strength of self-adhesion ring and show and promote the gas tightness.

(3) The self-adhesion ring includes the adhesive layer, water-soluble layer and pressfitting layer, the water-soluble layer is connected in the adhesive layer and is kept away from the one end of design magnetic ball, the pressfitting layer is connected in the one end that the adhesive layer is close to design magnetic ball, normal condition is contacted with intake pipe and outer takeover by water-soluble layer and is played the isolation effect down, make things convenient for the dismantlement separation of leak protection gas cover, after taking place gas leakage phenomenon, water-soluble layer dissolves under the effect of water pigment, then water-soluble layer is sticky with intake pipe and outer takeover abundant contact under the effect of pressfitting layer.

(4) The pressfitting layer includes moving the magnetic path, drain silk and outer preforming, move the magnetic path and connect in the center department of adhesive layer, the drain silk is inlayed and is connected on moving the magnetic path, and the drain silk both ends extend to elasticity pipeline and water soluble layer inboard respectively, outer pressing plate cup joints in moving the magnetic path outer end and inconsistent with the outer terminal surface of adhesive layer, form the magnetic repulsion effect between moving the magnetic path and the design magnetic ball, and then carry water pigment to the water soluble layer at the drain silk and dissolve the back, the adhesive layer is abundant sticky with intake pipe and outer tub contact under the magnetic repulsion effect, outer pressing plate can fully extrude whole adhesive layer, the difficult phenomenon that local region gluing effect is poor that appears.

(5) The shaping magnetic ball comprises a liquid containing ball, a fixed magnetic block, a powder containing sleeve and a hole sealing column, the liquid containing ball is connected to the leakage-proof air sleeve in an embedded mode and communicated with the flow dividing pipe, the fixed magnetic block is connected to one side, far away from the elastic pipeline, of the inner end of the liquid containing ball in an embedded mode, the powder containing sleeve is connected to the outer end of the fixed magnetic block, a migration hole is formed in the powder containing sleeve, the hole sealing column is inserted into the migration hole, one end, far away from the fixed magnetic block, of the hole sealing column is connected with the pressing layer, the fixed magnetic block and the moving magnetic block keep a magnetic repulsion effect, after the water pigment is conveyed by the flow dividing pipe, the water pigment is partially divided to the self-adhesion ring through the elastic pipeline, the adhesive layer is far away from the shaping magnetic ball after the water soluble layer is gradually dissolved, the hole sealing column is pulled to gradually separate from the powder containing sleeve, finally, the opening refrigeration of the powder containing sleeve is achieved, the water pigment is forced to freeze to shape the stretched elastic pipeline, and high-strength long-term support of the self-adhesion ring is achieved.

(6) The part of the length of the hole sealing column in the powder containing sleeve is consistent with the thickness of the water soluble layer, saltpeter powder is filled in the powder containing sleeve, the hole sealing column is separated from the powder containing sleeve after the water soluble layer is fully dissolved, then the water-based pigment can be contacted with the saltpeter powder in the powder containing sleeve, and the saltpeter can absorb a large amount of heat when dissolved in water, so that the water in the elastic pipeline is forced to freeze for shaping.

(7) The film pressing block comprises an outer liquid locking shell, a porous blocking layer, liquid storage fillers and a plurality of inner shaping wires, the outer liquid locking shell is connected between the laminating film and the liquid guide pipe, the porous blocking layer is connected to the position, corresponding to the liquid guide pipe, of the outer liquid locking shell in an embedded mode, the liquid storage fillers are filled in the inner side of the outer liquid locking shell and absorb water-based pigments, the inner shaping wires are evenly connected between the porous blocking layer and the laminating film, and after air leakage occurs at the connecting position, air is filled into the laminating film to expand, so that the liquid storage fillers are extruded to release the absorbed water-based pigments, under the matched shaping effect of the liquid storage fillers and the inner shaping wires, the laminating film only expands and extrudes in the surrounding area of the liquid storage fillers, and therefore the phenomenon that pores are blocked due to the fact that expansion is concentrated in the area of the porous blocking layer is avoided, and the effect of releasing the water-based pigments is poor is avoided.

(8) The suggestion bag is including inlaying shell, discoloring layer and many drain fibers outward, inlays the shell outward and inlays and connect in leak protection gas cover outer end, and discoloring layer connects in the outer opening part that inlays the shell, and drain fiber evenly connects in discoloring layer the inner, and after the press mold piece released water pigment, discoloring layer can absorb partial water pigment through drain fiber and then change the color suggestion, and unnecessary water pigment passes through the shunt tubes and carries to in the design magnetic ball.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the air leakage preventing sleeve of the present invention;

FIG. 3 is a schematic structural view of a film pressing block in a partially normal state according to the present invention;

FIG. 4 is a schematic structural view of a squeeze film block in a partially deformed state according to the present invention;

FIG. 5 is a schematic structural view of a self-adhesive ring of the present invention;

FIG. 6 is a schematic view of the structure at A in FIG. 5;

FIG. 7 is a schematic structural view of a shaped magnetic sphere of the present invention.

The reference numbers in the figures illustrate:

the vacuum pump comprises a vacuum pump body 1, an air inlet mechanism 2, an air inlet pipe 21, an air leakage prevention sleeve 22, an external connecting pipe 23, a pasting film 3, a film pressing block 4, an external liquid locking shell 41, a porous blocking layer 42, liquid storage filler 43, internal shaping wires 44, a liquid guide pipe 5, a prompting bag 6, an external embedded shell 61, a color changing layer 62, liquid guide fibers 63, a shunt pipe 7, a self-adhesive ring 8, an adhesive layer 81, a water soluble layer 82, a pressing layer 83, a movable magnetic block 831, a liquid guide wire 832, an external pressing sheet 833, a shaping magnetic ball 9, a liquid containing ball 91, a fixed magnetic block 92, a powder containing sleeve 93, a hole sealing column 94 and an elastic pipeline 10.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2, a vacuum pump with a self-adhesive air leakage-proof interface comprises a vacuum pump body 1, an air inlet mechanism 2 is installed on the vacuum pump body 1, the air inlet mechanism 2 comprises an air inlet pipe 21, an air leakage-proof sleeve 22 and an outer pipe 23, the air inlet pipe 21 is installed on the air inlet, the outer pipe 23 is located on the upper side of the air inlet pipe 21 and contacts with the air inlet pipe, the air inlet pipe 21 and the outer pipe 23 can be connected in other existing connection modes such as threaded connection or flange connection, and are not limited, the air leakage-proof sleeve 22 has an air leakage-proof effect on the connection position, the air leakage-proof sleeve 22 is sleeved on the connection position of the air inlet pipe 21 and the outer pipe 23, self-adhesive rings 8 are respectively embedded and connected on the inner sides of the upper end and the lower end of the air leakage-proof sleeve 22, an adhesive film 3 is connected between a pair of the self-adhesive rings 8, the outer end of the adhesive film 3 is connected with a plurality of evenly distributed pressure film blocks 4, and the pressure film blocks 4 correspond to the connection position of the air inlet pipe 21 and the outer pipe 23, the outer end of the air leakage preventing sleeve 22 is embedded and connected with a plurality of prompting bags 6 which are evenly distributed, and a catheter 5 is connected between the film pressing block 4 and the prompting bags 6.

Referring to fig. 5, the outer sides of the upper and lower ends of the air leakage preventing sleeve 22 are respectively connected with a plurality of shaped magnetic balls 9 corresponding to the self-adhesive rings 8 in an embedded manner, an elastic pipeline 10 is connected between the self-adhesive rings 8 and the shaped magnetic balls 9, a shunt tube 7 is connected between the prompt bag 6 and the shaped magnetic balls 9, and the shaped magnetic balls 9 can trigger the extrusion shaping effect on the self-adhesive rings 8, so that the adhesive strength of the self-adhesive rings 8 is improved, and the air tightness is obviously improved.

Self-adhesion ring 8 includes adhesive layer 81, water soluble layer 82 and pressfitting layer 83, water soluble layer 82 is connected in the one end that adhesive layer 81 kept away from design magnetic ball 9, pressfitting layer 83 is connected in the one end that adhesive layer 81 is close to design magnetic ball 9, adhesive layer 81 still has certain viscidity under having the water environment, contact with intake pipe 21 and outer takeover 23 by water soluble layer 82 under the normal condition and play the isolation, make things convenient for the dismantlement separation of leak protection gas cover 22, after taking place the gas leakage phenomenon, water soluble layer 82 dissolves under the effect of aqueous pigment, then water soluble layer 82 is sticky with intake pipe 21 and outer takeover 23 abundant contact under the effect of pressfitting layer 83.

Referring to fig. 6, the pressing layer 83 includes a movable magnetic block 831, a liquid guiding filament 832 and an outer pressing sheet 833, the movable magnetic block 831 is connected to the center of the adhesive layer 81, the liquid guiding filament 832 is connected to the movable magnetic block 831 in an embedded manner, two ends of the liquid guiding filament 832 extend to the inner sides of the elastic pipeline 10 and the water soluble layer 82 respectively, the outer pressing sheet 833 is sleeved on the outer end of the movable magnetic block 831 and abuts against the outer end face of the adhesive layer 81, a magnetic repulsion effect is formed between the movable magnetic block 831 and the shaped magnetic ball 9, and after the liquid guiding filament 832 conveys the water soluble pigment to the water soluble layer 82 for dissolution, the adhesive layer 81 fully contacts and adheres with the air inlet pipe 21 and the outer connecting pipe 23 under the action of the magnetic repulsion, the outer pressing sheet 833 can fully extrude the whole adhesive layer 81, and the phenomenon of poor adhesive.

Referring to fig. 7, the shaping magnetic ball 9 includes a liquid containing ball 91, a fixed magnetic block 92, a powder containing sleeve 93 and a hole sealing column 94, the liquid containing ball 91 is connected to the air leakage preventing sleeve 22 in an embedded manner and is communicated with the shunt tube 7, the fixed magnetic block 92 is connected to one side of the inner end of the liquid containing ball 91 far away from the elastic pipeline 10 in an embedded manner, the powder containing sleeve 93 is connected to the outer end of the fixed magnetic block 92, a migration hole is formed in the powder containing sleeve 93, the hole sealing column 94 is inserted into the migration hole, one end of the hole sealing column 94 far away from the fixed magnetic block 92 is connected with the pressing layer 83, the fixed magnetic block 92 and the movable magnetic block 831 maintain a magnetic repulsion effect, after the shunt tube 7 conveys the aqueous pigment, the aqueous pigment is partially shunted to the self-adhesion ring 8 through the elastic pipeline 10, after the aqueous layer 82 is gradually dissolved, the adhesive layer 81 is far away from the shaping magnetic ball 9, and the hole sealing column 94 is pulled to gradually separate from the powder containing sleeve 93, finally, the opening refrigeration of the powder containing sleeve 93 is realized, the aqueous pigment is forced to shape the stretched elastic pipeline 10, thereby realizing a high strength long-lasting support for the self-adhesive ring 8.

The partial length of the hole sealing column 94 in the powder containing sleeve 93 is consistent with the thickness of the water soluble layer 82, saltpeter powder is filled in the powder containing sleeve 93, the hole sealing column 94 is separated from the powder containing sleeve 93 after the water soluble layer 82 is fully dissolved, then the water-based pigment can be in contact with the saltpeter powder in the powder containing sleeve 93, and the saltpeter can absorb a large amount of heat when being dissolved in water, so that the water in the elastic pipeline 10 is forced to freeze for shaping.

Referring to fig. 3-4, the lamination block 4 includes an outer liquid locking shell 41, a porous barrier 42, a liquid storage filler 43, and a plurality of internal shaping wires 44, the outer liquid locking shell 41 is connected between the adhesive film 3 and the liquid guide tube 5, the porous barrier 42 is connected to the outer liquid locking shell 41 in an embedded manner at a position corresponding to the liquid guide tube 5, the liquid storage filler 43 is filled inside the outer liquid locking shell 41 and absorbs the water-based pigment, the internal shaping wires 44 are uniformly connected between the porous barrier 42 and the adhesive film 3, and after air leaks from the connection position, air is filled into the adhesive film 3 to expand, so as to extrude the liquid storage filler 43 to release the absorbed water-based pigment, under the matching and shaping effects of the liquid storage filler 43 and the internal shaping wires 44, the adhesive film 3 expands and extrudes only in the surrounding area of the liquid storage filler 43, thereby avoiding the expansion concentrated in the area of the porous barrier 42 to cause pore blocking, and cause poor release effect of the water-based pigment.

The outer liquid locking shell 41 and the inner shaping wire 44 are both made of hard materials, the porous blocking layer 42 is made of hard permeable materials, and the liquid storage filler 43 is made of elastic water-absorbing materials.

Suggestion bag 6 includes and inlays shell 61 outward, discoloration layer 62 and many drain fibers 63, inlays shell 61 outward and inlays and connect in leak protection gas cover 22 outer end, discoloration layer 62 is connected in the opening part of embedding shell 61 outward, drain fibers 63 evenly connects in discoloration layer 62 inner, after pressing membrane piece 4 releases water pigment, discoloration layer 62 can absorb partial water pigment through drain fibers 63 and then change the color suggestion, unnecessary water pigment passes through shunt tubes 7 and carries to in stereotyping magnetic ball 9.

The color-changing layer 62 is made of white or light-colored water-absorbing material, and one end of the liquid guide fiber 63 far away from the color-changing layer 62 extends to the inner side of the liquid guide tube 5.

According to the invention, the air tightness is improved at the joint by introducing the novel air inlet mechanism 2, air leakage detection is simultaneously carried out, once air leakage occurs, air firstly forces the adhering film 3 to expand and swell, so that the pressing film block 4 is extruded to release the water-based pigment, the water-based pigment is conveyed through the liquid guide tube 5 and then is subjected to color change prompt in the prompt bag 6, technicians can timely and intuitively find air leakage, meanwhile, redundant water-based pigment can act on the self-adhering ring 8 to force the self-adhering ring 8 to be partially dissolved and then trigger the adhering action, so that the air inlet pipe 21 and the external connecting pipe 23 are connected and sealed in a high-strength manner, further air leakage is avoided, compared with the existing vacuum pump, the air leakage prevention vacuum pump can realize a good air leakage prevention effect, and has an air.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a vacuum pump with self-adhesive leak protection gas interface, includes vacuum pump body (1), its characterized in that: the vacuum pump is characterized in that an air inlet mechanism (2) is installed on the vacuum pump body (1), the air inlet mechanism (2) comprises an air inlet pipe (21), an air leakage prevention sleeve (22) and an outer pipe (23), the air inlet pipe (21) is installed on an air inlet, the outer pipe (23) is located on the upper side of the air inlet pipe (21) and is in contact with the upper side of the air inlet pipe (21), the air leakage prevention sleeve (22) is sleeved at the joint of the air inlet pipe (21) and the outer pipe (23), self-adhesive rings (8) are embedded and connected on the inner sides of the upper end and the lower end of the air leakage prevention sleeve (22), an adhesive film (3) is connected between the self-adhesive rings (8), the outer end of the adhesive film (3) is connected with a plurality of uniformly distributed film pressing blocks (4), the film pressing blocks (4) correspond to the joint of the air inlet pipe (21) and the outer pipe (23), and a plurality of uniformly distributed prompt bags (6) are embedded and connected to the outer end of the air leakage prevention sleeve (22), a catheter (5) is connected between the film pressing block (4) and the prompting sac (6).

2. The vacuum pump with the self-adhesive air leakage prevention interface of claim 1, characterized in that: leak protection gas cover (22) about both ends outside all inlay and be connected with a plurality ofly with the corresponding design magnetism ball (9) of self-adhesion ring (8), be connected with between self-adhesion ring (8) and design magnetism ball (9) elastic conduit (10), be connected with shunt tubes (7) between suggestion bag (6) and design magnetism ball (9).

3. The vacuum pump with the self-adhesive air leakage prevention interface of claim 2, characterized in that: the self-adhesion ring (8) comprises an adhesive layer (81), a water-soluble layer (82) and a pressing layer (83), the water-soluble layer (82) is connected to one end, away from the shaping magnetic ball (9), of the adhesive layer (81), and the pressing layer (83) is connected to one end, close to the shaping magnetic ball (9), of the adhesive layer (81).

4. The vacuum pump with the self-adhesive air leakage prevention interface of claim 3, wherein: pressfitting layer (83) are including moving magnetic path (831), drain silk (832) and outer preforming (833), move magnetic path (831) and connect in the center department of adhesive layer (81), it connects on moving magnetic path (831) to inlay in drain silk (832), and drain silk (832) both ends extend to elasticity pipeline (10) and water-soluble layer (82) inboard respectively, outer preforming (833) cup joint in moving magnetic path (831) outer end and inconsistent with the outer terminal surface of adhesive layer (81).

5. The vacuum pump with the self-adhesive air leakage prevention interface of claim 3, wherein: design magnetic ball (9) including holding liquid ball (91), deciding magnetic path (92), holding powder cover (93) and sealing post (94), it inlays and connects on leak protection gas cover (22) and is linked together with shunt tubes (7) to hold liquid ball (91), decide magnetic path (92) to inlay and connect in holding one side that elastic conduit (10) were kept away from to liquid ball (91) inner, hold powder cover (93) and connect in deciding magnetic path (92) outer end, it has seted up the migration hole on powder cover (93) to hold, sealing post (94) are inserted and are located the migration downthehole, and sealing post (94) keep away from the one end of deciding magnetic path (92) and are connected with pressfitting layer (83).

6. The vacuum pump with the self-adhesive air leakage prevention interface of claim 5, wherein: the length of the part, located in the powder containing sleeve (93), of the hole sealing column (94) is consistent with the thickness of the water soluble layer (82), and saltpeter powder is filled in the powder containing sleeve (93).

7. The vacuum pump with the self-adhesive air leakage prevention interface of claim 1, characterized in that: the membrane pressing block (4) comprises an outer liquid locking shell (41), a porous blocking layer (42), a liquid storage filler (43) and a plurality of inner shaping wires (44), the outer liquid locking shell (41) is connected between the adhesive film (3) and the liquid guide pipe (5), the porous blocking layer (42) is connected to the position, corresponding to the liquid guide pipe (5), of the outer liquid locking shell (41) in an embedded mode, the liquid storage filler (43) is filled in the inner side of the outer liquid locking shell (41) and absorbs water-based pigment, and the inner shaping wires (44) are evenly connected between the porous blocking layer (42) and the adhesive film (3).

8. The vacuum pump with the self-adhesive air leakage prevention interface of claim 7, wherein: the outer liquid locking shell (41) and the inner shaping wire (44) are both made of hard materials, the porous blocking layer (42) is made of hard water-permeable materials, and the liquid storage filler (43) is made of elastic water-absorbing materials.

9. The vacuum pump with the self-adhesive air leakage prevention interface of claim 1, characterized in that: indicate bag (6) including inlaying shell (61), discoloration layer (62) and many drain fibers (63) outward, inlay shell (61) outward and inlay and connect in leak protection gas cover (22) outer end, discoloration layer (62) are connected in the opening part of inlaying shell (61) outward, drain fibers (63) evenly connect in discoloration layer (62) inner.

10. The vacuum pump with the self-adhesive air leakage prevention interface of claim 9, wherein: the color changing layer (62) is made of white or light-colored water absorbing materials, and one end, far away from the color changing layer (62), of the liquid guide fiber (63) extends to the inner side of the liquid guide pipe (5).