CN208564981U

CN208564981U - structure of vacuum pump

Info

Publication number: CN208564981U
Application number: CN201820652664.XU
Authority: CN
Inventors: 邱圣智
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-08
Filing date: 2018-05-03
Publication date: 2019-03-01
Anticipated expiration: 2028-05-03
Also published as: TWM550781U; JP3217124U

Abstract

The utility model provides a structure of vacuum pump, mainly lie in solving single vacuum pump and take out the problem that efficiency is not good when the air to the pipe-line system of a plurality of electrical equipment, or take out the problem that carries and accomodate inconvenience when leaving the air with the pipe-line system of a plurality of electrical equipment with a plurality of vacuum pumps, the event establishes driving motor in the pedestal, and driving motor's mandrel both ends have a pump body respectively and install at the pedestal, and there is the dustcoat to cover the pump body, two pump bodies all have the entry of taking out the air, export and gas passageway, the negative pressure of establishing produces the piece by two pump bodies and is driven by driving motor, and can take out the air to different pipe-line systems respectively, constitute by this the utility model discloses a vacuum pump is used for.

Description

The structure of vacuum pump

Technical field

A kind of structure of the utility model in relation to vacuum pump, referring in particular to one kind can be by the sky in the pipe-line system of electrical equipment The structure for the vacuum pump that gas detaches.

Background technique

Visible electrical equipment on the market, such as air conditioner, refrigerator, all with refrigerant in its pipe-line system via evaporation And condensation, and achieve the effect that refrigeration, to avoid refrigeration processes from leading to system failure because air remains in pipe-line system, therefore Air in pipe-line system must detach, i.e., so-called to vacuumize, the tool that be with vacuum pump at this time, which be, executes.

Known vacuum pump usually links the pump housing with drive motor, utilizes the mandrel and the intracorporal core of pump of drive motor Connection drives the blade for being placed in core with centrifugal rotation, and reaches the aforementioned vacuumizing effect for detaching air.However, Know that vacuum pump has the problem that

1, due to the pump housing only one, so the pipe-line system that can only once connect in an aforementioned electrical equipment carries out detaching sky If the vacuuming action of gas must then be waited one by one, be caused have the pipe-line system of multiple electrical equipments to need to detach air Activity duration is long, and efficient bad problem；Alternatively, to can once be detached to the pipe-line system of multiple electrical equipments The vacuuming action of air then must once wear multiple vacuum pumps, although opposite can shorten the activity duration, must once carry Multiple vacuum pumps also result in the inconvenience of carrying and storage.

2, hold 1, it is known that vacuum pump, not only the pump housing only one, and pump intracorporal core also only one, practical experience It was found that the attainable vacuum degree of institute is limited, it is difficult to effectively by pipe-line system when detaching to the air in aforementioned pipe-line system Interior air detaches completely.

Utility model content

One of the utility model aim is to solve the problem above-mentioned and provide a kind of structure of vacuum pump, can reach compared with Good efficiency and the convenient effect of storage.

The two of the utility model aim are to provide a kind of structure of vacuum pump, and each pump housing has two negative pressure generating elements one Preceding and another one can reach the reinforcing effect for detaching air in rear actuation simultaneously, and it can get preferable vacuum degree.

The three of the utility model aim are to provide a kind of structure of vacuum pump, two switch valves set by the pedestal of pedestal It is able to pipeline parallel connection, and is used in conjunction with a pipeline and is externally connected to the pipe-line system of air to be detached, two pumps can be obtained simultaneously In body the actuation of totally four negative pressure generating elements and detach air, can get more preferably vacuum degree.

To achieve the above object, the utility model takes following technical scheme:

The utility model includes:

One pedestal；

One drive motor is set in the pedestal, which has a mandrel that can be driven to rotate, and the pedestal is in the heart Respectively there is an air intake duct in the position at axis both ends, the two air intake ducts independence and is not communicated with；

Two pump housings are mounted on the pedestal at the both ends of the mandrel respectively, two pump housing all have one for air enter entrance, One for the outlet of air discharge and the gas passage of the connection entrance and the outlet, and all leads in its gas in two pump housing Have one air is taken out negative pressure generating elements toward the outlet from the entrance in road, the two negative pressure generating elements in the pump housing at place respectively The both ends of the mandrel can be drivingly attached at；

Two outer covers cover the respectively pump housing respectively and are fixed on the pedestal.

Wherein, which respectively has a pedestal to install two pump housing at the both ends of the mandrel, and respectively the pump housing is in the base installed Frame is sequentially stacked outward including block and a rear end cap after block, a central block, one before a drive end bearing bracket, one, the entrance position In the drive end bearing bracket, and the outlet is located at the rear block, and the gas passage is by the entrance sequentially through the drive end bearing bracket, preceding block, centre Block and the rear block and be connected to the outlet, the preceding block and the rear block all have one and the slot that communicates of the gas passage Room is all equipped with a negative pressure generating elements above-mentioned in the two slots room.

Wherein, respectively the pedestal sets a switch valve, which is located at two pedestal, and is respectively communicated in the respectively base Between the entrance of switch valve set by frame and the pump housing.

Wherein, switch valve set by two pedestal is externally connected to pipeline respectively to be independent, or in parallel and total with pipeline It is externally connected to using a pipeline.

Wherein, the negative pressure generating elements all has that one is eccentric in the slot room at place and the core that sets, and the respectively core all There are an axle portion and plural blade, which rotates to push the air in the slot room, in the preceding block with set core Core, one end of the mandrel and one end of the axle portion in the rear intracorporal core of block are separately connected with its axle portion both ends.

Wherein, the preceding intracorporal core of block, one end of axle portion and one end one of the mandrel are recessed and another one is convex And it is coaxially connected, and one end of the axle portion of the other end of its axle portion and the rear intracorporal core of block and one are recessed and another Person is convex and coaxially connected.

Wherein, which sets the tongue piece that one can be discharged and started by air in the side for having the outlet and blocks the outlet.

Wherein, this is covered with the exhaust valve that a position corresponds to the outlet, and this is covered with a picture window and a gate gurgle valve.

The beneficial effects of the utility model are: the structure of the utility model vacuum pump, can reach preferable efficiency and storage side Just the effect of；Each pump housing has two negative pressure generating elements one preceding and another one can reach in rear actuation simultaneously and detach air Reinforcing effect, and can get preferable vacuum degree；Two switch valves set by the pedestal of pedestal are able to pipeline parallel connection, and make jointly It is externally connected to the pipe-line system of air to be detached with a pipeline, the work of totally four negative pressure generating elements can be obtained in two pump housings simultaneously It moves and detaches air, can get more preferably vacuum degree.

Detailed description of the invention

Fig. 1 is the stereo appearance figure of the embodiments of the present invention, and the outer cover of side separates pedestal and appears the pump housing in figure.

Fig. 2 is the partial sectional view of the embodiments of the present invention, cuts open the pump covered by the outer cover of pedestal side in figure Body.

Positional relationship when Fig. 3 disassembles for each portion's part of the body of the embodiments of the present invention, outer cover and a pump housing Scheme, clearly shows that mandrel in figure, therefore mandrel is emerging in outside pedestal and is separated with drive motor.

It closes position when Fig. 4 disassembles for each portion's part of the body of the embodiments of the present invention, outer cover and another pump housing System schemes, and clearly shows that mandrel in figure, therefore mandrel is emerging in outside pedestal and is separated with drive motor.

Fig. 5 is that the gas passage of the embodiments of the present invention is connected to the signal constituted by each channel in any pump housing Figure.

Fig. 6 is the action schematic diagram of set negative pressure generating elements in preceding block shown in the 6-6 hatching line position of Fig. 2.

Fig. 7 is the action schematic diagram of set negative pressure generating elements in rear block shown in the 7-7 hatching line position of Fig. 2.

Fig. 8 is two switch valves showing in two different pipe-line systems with piping connection respectively of the embodiments of the present invention It is intended to.

Fig. 9 be the embodiments of the present invention two switch valves with piping connection in the schematic diagram of same pipe-line system.

Specific embodiment

The utility model provides a kind of structure of vacuum pump, selected preferred embodiment, including a pedestal 1, one driving Motor 2, two pump housings 3 and two outer covers 4, in which:

As shown in Figures 1 to 4, drive motor 2 is set in pedestal 1, and drive motor 2 has a mandrel 21 that can be driven to rotate, Pedestal 1 respectively has an air intake duct 11 in the position at 21 both ends of mandrel, and two air intake ducts 11 are mutually indepedent, and are not communicated with.

As shown in Figure 1, two pump housings 3 are mounted on pedestal 1 at the both ends of mandrel 21 respectively, and two outer covers 4 cover each pump respectively Body 3 and it is fixed on pedestal 1.As shown in Figs. 3-4, two pump housings 3 all have an entrance 31, one outlet 32 and a gas passage 33, empty Gas can be entered in the pump housing 3 by entrance 31, and flow to outlet 32 through gas passage 3, and air is allowed to be moved out.Two pump housings 3 It is interior, all there is a negative pressure generating elements 34 in its gas passage 33, this negative pressure generating elements 34 can be taken out air toward outlet from entrance 31 32, two negative pressure generating elements 34 can be drivingly attached at the both ends of mandrel 21 respectively in the pump housing 3 at place.

As shown in Figures 1 to 4, in the present embodiment, pedestal 1 respectively has a pedestal 12 to install two pump housings at the both ends of mandrel 21 3, each pump housing 3 is after the pedestal 12 installed sequentially stacks block 36 before a drive end bearing bracket 35, one, a central block 37, one outward Block 38 and a rear end cap 39, entrance 31 are located at drive end bearing bracket 35, and export 32 and be located at rear block 38, and gas passage 33 is by entering Mouthfuls 31 sequentially through drive end bearing bracket 35, preceding block 36, central block 37 and after block 38 and be connected to outlet 32.Wherein, preceding block 36 have one and the slot room 361 that communicates of gas passage 33, are equipped with a negative pressure generating elements 34 in slot room 361.Block 38 also has one afterwards The slot room 381 communicated with gas passage 33 is also equipped with a negative pressure generating elements 34 in slot room 381.

As shown in figure 5, the gas passage 33, has a channel 331 in drive end bearing bracket 35, there is a channel 332 in preceding block 36 With channel 333, there is a channel 334 in central block 37, has channel 335 and channel 336 in rear block 38, wherein in drive end bearing bracket 351 have entrance 31 to be connected to channel 331, and channel 331 is to be connected to channel 332 when drive end bearing bracket 35 is stacked with preceding block 36, Channel 332 is simultaneously sequentially connected to slot room 361 with channel 333 in preceding block 36, and channel 333 is in preceding block 36 and central block 37 be to be connected to channel 334, and channel 334 is to connect with channel 335 when central block 37 and rear block 38 stack when stacking Logical, channel 335 is simultaneously sequentially connected to slot room 381 with channel 336 in rear block 38, and channel 336 is then connected in rear block 38 Outlet 32.

As shown in Figures 2 to 4, aforementioned negative pressure generating elements 34, all there is that one is eccentric in the slot room 361,381 at place and what is set turn Core 341 (344) all has an axle portion 342 (345) and two blades 343 (346), two blades 343 (346) in each core 341 (344) It rotates with set core 341 (344) to push the air in slot room 361,381.In the present embodiment, turn in preceding block 36 Core 341, be separately connected one end of mandrel 21 and the axle portion 345 of the core 344 in rear block 38 with its 342 both ends of axle portion one End, therefore when drive motor 2 drives mandrel 21 to rotate, as shown in fig. 6, axle portion 342 in the premenstrual block 36 of mandrel 21 and drive Core 341 rotates, and enables two blades 343 to flow the air extrusion in slot room 361 backward, and as shown in Fig. 7, by axle portion 342 It drives core 344 to rotate through axle portion 345, two blades 346 is enabled to flow the air extrusion in slot room 381 backward, and arrive and export 32 discharges.

In the present embodiment, rear block 38 is having the side of outlet 32 to set a tongue piece 382, this tongue piece 382 is by screw 383 Compacting with tabletting 384 and block outlet 32, and the blocking of 382 pairs of tongue piece outlets 32 is not fixed and invariable, and is implied that and is worked as gas Air pressure in channel 33, which arrives greatly, can overcome the downtrodden strength of tongue piece 382, and tongue piece 382 can slightly start in outlet 32, Allow the air in gas passage 33 can be by 32 discharge of outlet.

It holds, the core 341 in preceding block 36, one end of axle portion 342 and one end one of mandrel 21 are recessed and another Person be it is convex and coaxially connected, there is a recess portion 211 in one end for mandrel 21 herein, and there is a protrusion 342a in one end of axle portion 342, Mandrel 21 and axle portion 342 are coaxially connected with recess portion 211 and protrusion 342a docking；In the other end of axle portion 342 and rear block 38 Core 344 axle portion 345 one end and one be recessed and another one is convex and coaxially connected, be the another of axle portion 342 herein There is a protrusion 342b in one end, and one end of axle portion 345 has a recess portion 345a, axle portion 342 and axle portion 345 with protrusion 342b and recessed Portion 345a docking and it is coaxially connected.

In the present embodiment, each pedestal 12 sets a switch valve 121, and two air intake ducts 11 are located at two pedestals 12, and respectively It is connected between the entrance 31 of switch valve 121 set by each pedestal 12 and the pump housing 3.In addition, outer cover 4 has an exhaust valve 41, this exhaust The position set by outer cover 4 of valve 41 is corresponding outlet 32, and outer cover 4 has a picture window 42 and a gate gurgle valve 43.

Hold, switch valve 121 set by two pedestals 12 is independent and is not communicated with, therefore each switch valve 121 only with a pump housing 3 gas passage 33 is connected to, and each switch valve 121 can be as shown in figure 8, be externally connected to pipeline 122, or such as Fig. 9 institute respectively at this time Show, with pipeline 123 (such as in parallel with three-way connection 124 as shown in the figure) in parallel and is used in conjunction with a pipeline 125 and externally connects It is logical.

By above-mentioned explanation it is seen that the major advantage of the utility model, is:

1, drive motor 2 is equipped in pedestal 1, and pedestal 1 is equipped with two pump housings 3 at the both ends of the mandrel 21 of drive motor 2, Two pump housings 3 have independent entrance 31, gas passage 33 and outlet 32, when there is two different pipe-line systems A, B to need gas When detaching, which can be respectively connected to pedestal 1 (such as above-mentioned switch valve 121), and through pedestal 1 Two air intake ducts 11 be respectively communicated with the entrances 31 of two pump housings 3, set negative pressure generating elements 34 is with drive motor 2 in two pump housings 3 When mandrel 21 drives, the air in two pipe-line systems A, B can be detached respectively by two pump housings 3, therefore share one with two pump housings 3 The kenel of body 1 and drive motor 2 can carry out the operation that vacuumizes that the air in two different pipe-line systems A, B detaches simultaneously, right It is arranged in pairs or groups the setting of a pump housing in known vacuum pump with a drive motor, and air once can only be detached and efficiency to a pipe-line system Gastrointestinal disease patient is opposite to can reach the effect of preferably vacuumizing efficiency；And it must could be to two with two difference for known vacuum pump Pipe-line system detaches air respectively and has storage inconvenience person, then can reach relatively and stores convenient effect.

2. if having two negative pressure generating elements 34, and two negative pressure generating elements respectively in that is, each pump housing 3 such as the kenel of above-described embodiment 34 one rear, then when two 34 actuations simultaneously of negative pressure generating elements, can reach the reinforcing effect for detaching air in preceding and another one, and It can get preferable vacuum degree.

3. 2 are held, if two switch valve 121 set by the pedestal 12 of pedestal 1, as previously described with pipeline 123 through three-way connection 124 Parallel connection, and when being used in conjunction with a pipeline 125 and being externally connected to pipe-line system A (B) of air to be detached, two can be obtained simultaneously In the pump housing 3 actuation of totally four negative pressure generating elements 34 and detach air, can get more preferably vacuum degree.

Claims

1. a kind of structure of vacuum pump, which is characterized in that it includes:

One pedestal；

One drive motor is set in the pedestal, which has a mandrel that can be driven to rotate, and the pedestal is in the mandrel two Respectively there is an air intake duct in the position at end, the two air intake ducts independence and is not communicated with；

Two pump housings are mounted on the pedestal at the both ends of the mandrel respectively, two pump housing all have one for air enter entrance, one supply The gas passage of the outlet of air discharge and the connection entrance and the outlet, and in two pump housing all in its gas passage Have one air is taken out negative pressure generating elements toward the outlet from the entrance, the two negative pressure generating elements in the pump housing at place respectively by can Drivingly it is attached at the both ends of the mandrel；

2. the structure of vacuum pump according to claim 1, it is characterised in that: the pedestal respectively has at the both ends of the mandrel One pedestal is to install two pump housing, each pump housing block before the pedestal installed sequentially is stacked outward including a drive end bearing bracket, one Block and a rear end cap after body, a central block, one, the entrance is located at the drive end bearing bracket, and the outlet is positioned at described Block afterwards, the gas passage by the entrance sequentially through the drive end bearing bracket, preceding block, central block and after this block and be connected to The outlet, the preceding block and the rear block all have a slot room communicated with the gas passage, are all equipped with one in the two slots room The negative pressure generating elements.

3. the structure of vacuum pump according to claim 2, it is characterised in that: each pedestal sets a switch valve, and described two Air intake duct is located at two pedestal, and is respectively communicated between the entrance of the switch valve set by the respectively pedestal and the pump housing.

4. the structure of vacuum pump according to claim 3, it is characterised in that: switch valve set by two pedestal is independent And it is externally connected to pipeline respectively, or with pipeline parallel connection and be used in conjunction with a pipeline and be externally connected to.

5. the structure of vacuum pump according to claim 2, it is characterised in that: the negative pressure generating elements all has one at place The eccentric and core that sets in slot room, and all have an axle portion and plural blade in the respectively core, the plural number blade is with set core To push the air in the slot room, the preceding intracorporal core of block is separately connected the mandrel with its axle portion both ends for rotation One end of one end and the axle portion in the intracorporal core of the rear block.

6. the structure of vacuum pump according to claim 5, it is characterised in that: the preceding intracorporal core of block, axle portion One is recessed and another one is convex and coaxially connected in one end and one end of the mandrel, and the other end of its axle portion and it is described after One end of the axle portion of the intracorporal core of block and one are recessed and another one is convex and coaxially connected.

7. the structure of vacuum pump according to claim 2, it is characterised in that: block is in the side for having the outlet after described If a tongue piece that can be discharged and be started by air blocks the outlet.

8. the structure of vacuum pump according to claim 1, it is characterised in that: the position that is covered with corresponds to the outlet Exhaust valve, and this is covered with a picture window and a gate gurgle valve.