CN205260269U - Pump body structure and compressor - Google Patents

Abstract

An embodiment of the utility model discloses a pump body structure and compressor, this pump body structure includes the cylinder, go up the flange, lower flange and exhaust passage, the exhaust passage is including setting up the first passageway at last flange, the second channel of setting on the cylinder and the third passageway of setting at the lower flange, the second channel is including communicateing first waist shape hole and air vent each other, wherein, first waist shape hole sets up the terminal surface that contacts at cylinder and last flange, and the aperture in first waist shape hole is greater than the aperture of first passageway and the aperture of air vent. Because the aperture in first waist shape hole all is greater than the aperture of first passageway and air vent, the cylinder forms an expansion passageway with the position that last flange contacted so, and this expansion passageway can effectively reduce the discharge pressure pulsation, reduces the air current noise to fall the frequency range that makes an uproar and widen, thereby effectively improve the noise level of complete machine, on the other hand, this access structure will can not produce great flow resistance, and the complete machine performance of compressor can not receive the influence.

Description

A kind of pump body structure and compressor

Technical field

The utility model relates to Compressor Technology field, more particularly, relates to a kind of pump body structure and pressureContracting machine.

Background technology

Refer to Fig. 1 and Fig. 2, the cross-sectional view of the pump body structure that Fig. 1 provides for prior art;The plan structure schematic diagram of the cylinder that Fig. 2 provides for prior art;

This pump body structure comprises cylinder 200, upper flange 100, lower flange 300 and exhaust passage 400, exhaustPassage 400 comprise be arranged on upper flange 100 first passage 401, be arranged on the second channel on cylinder 200402 and be arranged on the third channel 403 of lower flange 300, second channel 402 is communicated with first passage 401 and secondPassage 402, the aperture of the second channel 402 on cylinder 200 and first passage 401 and the laxative remedy of upper flange 100The aperture of the third channel 403 on blue 300 is identical. In the time of compressor air-discharging, the air-flow in exhaust passage 400Pressure fluctuation is larger, can produce compared with air flow noise.

Therefore, how effectively to reduce the noise of pump body structure, become those skilled in the art urgently to be resolved hurrilyTechnical problem.

Utility model content

In view of this, first object of the present utility model is to provide a kind of pump body structure, with effectivelyReduce the noise of pump body structure.

Second object of the present utility model is to provide a kind of compressor.

For achieving the above object, the utility model provides following technical scheme:

A kind of pump body structure, comprises cylinder, upper flange, lower flange and exhaust passage, described exhaust passageComprise be arranged on described upper flange first passage, be arranged on the second channel on described cylinder and be arranged onThe third channel of described lower flange, described second channel is communicated with described first passage and described second channel,Described second channel comprises be interconnected the first mounting hole and passage, and wherein, described the first mounting hole is establishedPut the end face contacting with described upper flange at described cylinder, described the first mounting hole is communicated with described passageWith described first passage, and the aperture of described the first mounting hole be greater than described first passage aperture and described inThe aperture of passage, described passage is communicated with described third channel.

Preferably, in said pump body structure, described second channel also comprises and is arranged on described cylinder and instituteState the end face that lower flange contacts, and the second mounting hole being communicated with described passage, described the second kidney-shapedHole is communicated with described passage and described third channel, and the aperture of described the second mounting hole is greater than the described the 3rdThe aperture of passage.

Preferably, in said pump body structure, the quantity of described passage is multiple.

Preferably, in said pump body structure, the aperture of described first passage equals described third channelAperture.

Preferably, in said pump body structure, the quantity of described exhaust passage is two.

A kind of compressor, comprises pump body structure, and described pump body structure is described in above-mentioned arbitrary technical schemePump body structure.

Can find out from above-mentioned technical scheme, in the utility model embodiment, the aperture of the first mounting holeAll be greater than the aperture of first passage and passage, the position that cylinder contacts with upper flange so forms oneExpanding channel, this expanding channel can effectively reduce exhaust gas pressure pulse, reduces pneumatic noise, and fallsThe frequency range of making an uproar is widened, thereby effectively improves the noise level of complete machine; On the other hand, this channel designTo can not produce larger flow resistance, the overall performance of compressor can not be affected.

Brief description of the drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below willAccompanying drawing to required use in embodiment or description of the Prior Art is briefly described, apparently,Accompanying drawing in the following describes is only embodiment more of the present utility model, for ordinary skill peopleMember, is not paying under the prerequisite of creative work, can also obtain the attached of other according to these accompanying drawingsFigure.

The cross-sectional view of the pump body structure that Fig. 1 provides for prior art;

The plan structure schematic diagram of the cylinder that Fig. 2 provides for prior art;

The cross-sectional view of a kind of pump body structure that Fig. 3 provides for the utility model embodiment;

Fig. 4 is the plan structure schematic diagram of cylinder in the pump body structure providing in Fig. 3;

The cross-sectional view of the another kind of pump body structure that Fig. 5 provides for the utility model embodiment;

Fig. 6 is the plan structure schematic diagram of cylinder in the pump body structure providing in Fig. 5;

The cross-sectional view of the third pump body structure that Fig. 7 provides for the utility model embodiment;

Fig. 8 is the plan structure schematic diagram of cylinder in the pump body structure providing in Fig. 7.

Wherein, 100 for upper flange, 200 for cylinder, 300 for lower flange, 400 for exhaust passage, 401 areFirst passage, 402 is that second channel, 403 is that third channel, 4021 is that the first mounting hole, 4022 is for logicalPore, 4023 is the second mounting hole.

Detailed description of the invention

Core of the present utility model is to provide a kind of pump body structure and compressor, effectively to reduce the pump housingThe noise of structure.

Below, with reference to accompanying drawing, embodiment is described. In addition the embodiment shown in, is not to rightRequire the utility model content of recording to play any restriction effect. In addition, the represented structure of embodiment belowThe solution of the utility model that the full content becoming is not limited to record as claim is necessary.

Refer to Fig. 3 to Fig. 6, the section of a kind of pump body structure that Fig. 3 provides for the utility model embodimentStructural representation; Fig. 4 is the plan structure schematic diagram of cylinder in the pump body structure providing in Fig. 3

A kind of pump body structure, comprises cylinder 200, upper flange 100, lower flange 300 and exhaust passage 400,Exhaust passage 400 comprise be arranged on upper flange 100 first passage 401, be arranged on second on cylinder 200Passage 402 and the third channel 403 that is arranged on lower flange 300, second channel 402 is communicated with first passage 401 HesSecond channel 402, second channel 402 comprises be interconnected the first mounting hole 4021 and passage 4022, itsIn, the first mounting hole 4021 is arranged on the end face that cylinder 200 contacts with upper flange 100, the first mounting hole4021 are communicated with passage 4022 and first passage 401, and the aperture of the first mounting hole 4021 is greater than first passageThe aperture of 401 aperture and passage 4022, passage 4022 is communicated with third channel 403.

The aperture of the first mounting hole 4021 is all greater than the aperture of first passage 401 and passage 4022, so gasThe position that cylinder 200 contacts with upper flange 100 forms an expanding channel, and this expanding channel can effectively fallLow exhaust gas pressure pulse, reduce pneumatic noise, and noise reduction frequency range widens, thereby effectively improves wholeThe noise level of machine; On the other hand, this channel design will can not produce larger flow resistance, compressorOverall performance can not be affected.

Consult Fig. 5 and Fig. 6, the section of the another kind of pump body structure that Fig. 5 provides for the utility model embodimentStructural representation; Fig. 6 is the plan structure schematic diagram of cylinder 200 in the pump body structure providing in Fig. 5.

In order further to reduce the noise of compressor, second channel 402 also comprise be arranged on cylinder 200 with underThe end face that flange 300 contacts, and the second mounting hole 4023, the second mounting holes that are communicated with passage 40224023 are communicated with passage 4022 and third channel 403, and the aperture of the second mounting hole 4023 is greater than third channel403 aperture.

200 two end faces of cylinder have the first mounting hole 4021 and the second mounting hole 4023, and the first mounting hole4021 and second are communicated with by passage 4022 between mounting hole 4023, have formed the knot of a plural serial stageThe expanding silencers channel of structure, this compound expanding channel reduces exhaust gas pressure pulse further, fallsLow-flow noise.

Consult Fig. 7 and Fig. 8, the section of the third pump body structure that Fig. 7 provides for the utility model embodimentStructural representation; Fig. 8 is the plan structure schematic diagram of cylinder 200 in the pump body structure providing in Fig. 8.

In order further to reduce the noise of compressor, the quantity of passage 4022 is multiple. 200 two, cylinderEnd face has the first mounting hole 4021 and the second mounting hole 4023, and the first mounting hole 4021 and the second kidney-shapedBetween hole 4023, be communicated with by multiple passages 4022, formed the expansion of a multistage series-parallel structureFormula silencers channel, this compound expanding channel reduces exhaust gas pressure pulse further, reduces air-flow and makes an uproarSound.

In the utility model embodiment, the aperture of first passage 401 equals the aperture of third channel 403,Certainly the aperture of first passage 401 also can be different from the aperture of third channel 403.

In said pump body structure, the quantity of exhaust passage 400 can also be two for being one.

The invention also discloses a kind of compressor, comprise pump body structure, pump body structure is above-mentioned arbitraryThe pump body structure of technical scheme. Because said pump body structure has above-mentioned effect, comprise said pump body structureCompressor also there is corresponding effect, repeat no more herein.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe utility model. To be aobvious for those skilled in the art to the multiple amendment of these embodimentAnd easily see, General Principle as defined herein can not depart from spirit or scope of the present utility modelSituation under, in other embodiments realize. Therefore, the utility model will can not be restricted to institute hereinThese embodiment that show, but to meet consistent with principle disclosed herein and features of novelty the widestScope.

Claims (6)

1. a pump body structure, comprise cylinder (200), upper flange (100), lower flange (300) and exhaust passage (400), described exhaust passage (400) comprises the first passage (401) that is arranged on described upper flange (100), be arranged on the second channel (402) on described cylinder (200) and be arranged on the third channel (403) of described lower flange (300), described second channel (402) is communicated with described first passage (401) and described second channel (402), it is characterized in that, described second channel (402) comprises be interconnected the first mounting hole (4021) and passage (4022), wherein, described the first mounting hole (4021) is arranged on the end face that described cylinder (200) contacts with described upper flange (100), described the first mounting hole (4021) is communicated with described passage (4022) and described first passage (401), and the aperture of described the first mounting hole (4021) is greater than the aperture of described first passage (401) and the aperture of described passage (4022), described passage (4022) is communicated with described third channel (403).

2. pump body structure as claimed in claim 1, it is characterized in that, described second channel (402) also comprises and is arranged on the end face that described cylinder (200) contacts with described lower flange (300), and the second mounting hole (4023) being communicated with described passage (4022), described the second mounting hole (4023) is communicated with described passage (4022) and described third channel (403), and the aperture of described the second mounting hole (4023) is greater than the aperture of described third channel (403).

3. pump body structure as claimed in claim 2, is characterized in that, the quantity of described passage (4022) is multiple.

4. pump body structure as claimed in claim 2, is characterized in that, the aperture of described first passage (401) equals the aperture of described third channel (403).

5. the pump body structure as described in any one in claim 1 to 4, is characterized in that, the quantity of described exhaust passage (400) is two.

6. a compressor, comprises pump body structure, it is characterized in that, described pump body structure is the pump body structure described in any one in claim 1 to 5.