CN208793225U - Pump assembly and compressor - Google Patents

Abstract

The utility model provides a kind of pump assembly and compressor, pump assembly includes: the upper flange (10) set gradually from top to bottom, upper cylinder (20), partition (30), lower cylinder (40) and lower flange (50), lower cylinder (40) has lower gas vent (41), lower gas vent (41) is connected to lower exhaust passage, lower cylinder (40) also has upper air-vent (42), the upper exhaust passage (32) that partition (30) is equipped with valve opening (31) corresponding with upper air-vent (42) and is connected to valve opening (31), valve body (60) are equipped in valve opening (31), valve body (60) has the sealing state of sealing upper air-vent (42) and opens the exhaust condition of upper air-vent (42).The technical solution of the utility model effective solution higher, exhaust noise also obvious problem using the twin-tub pump assembly exhaust power consumption of single cylinder single air hole structure in the prior art.

Description

Pump assembly and compressor

Technical field

The utility model relates to Compressor Technology fields, and in particular to a kind of pump assembly and compressor.

Background technique

In the prior art, twin-tub pump assembly is only there are two gas vent, specifically, as shown in Figure 1, upper cylinder 2 pass through it is upper Flange 1 is vented, and lower cylinder 4 is vented by lower flange 5, and this " the single stomata of single cylinder " structure is applied in single cylinder huge discharge twin cylinder pump Exhaust power consumption on body is higher, and exhaust noise is also more apparent.

Utility model content

The main purpose of the utility model is to provide a kind of pump assembly and compressors, to solve to use in the prior art Power consumption is higher for the twin-tub pump assembly exhaust of the single air hole structure of single cylinder, exhaust noise also obvious problem.

To achieve the above object, the utility model provides a kind of pump assembly, comprising: what is set gradually from top to bottom is upper Flange, upper cylinder, partition, lower cylinder and lower flange, lower cylinder have lower gas vent, and lower gas vent is connected to lower exhaust passage, under Cylinder also has upper air-vent, the upper exhaust passage that partition is equipped with valve opening corresponding with upper air-vent and is connected to valve opening, valve Valve body is equipped in hole, valve body has the sealing state of sealing upper air-vent and opens the exhaust condition of upper air-vent.

Further, pump assembly further includes needle, and partition is equipped with the installation for installing needle and being connected to valve opening Hole, one end of needle is stretched out from mounting hole to be connect with valve body, and under the elastic force effect of needle, valve body is in sealing state；Exhaust When under the influence of air pressure, valve body is in the open state.

Further, radial direction setting and its other end of the needle along partition is pierced by from the outer wall of partition.

Further, valve body is equipped with the first blind hole with the one end fits of needle, and partition is arrived at the center of the first blind hole The distance of lower end surface is greater than the center of needle to the distance of the lower end surface of partition.

Further, the hole wall of valve opening is equipped with the escape groove of evacuation valve needle movements.

Further, needle is spring needle or reed.

Further, valve opening is the second blind hole.

Further, upper exhaust passage is that groove is led in the upper exhaust being arranged on the lower end surface of partition, and upper exhaust passage connects Logical exhaust hole gas being discharged outside pump assembly.

Further, lower exhaust passage is arranged on lower flange and is connected to exhaust hole.

The utility model also provides a kind of compressor, comprising: pump assembly, pump assembly are above-mentioned pump assembly.

Technical solutions of the utility model, when having the advantages that lower cylinder exhaust, valve body is in exhaust condition, a part Gas is discharged by lower gas vent by lower exhaust passage, and another part is arranged by upper air-vent, valve opening by upper exhaust passage Out；When lower cylinder is not vented, valve seal upper air-vent.By on lower cylinder increase upper air-vent and on partition increase with The exhaust structure of upper air-vent connection mitigates lower cylinder and is vented power consumption so that the lower cylinder of pump assembly has double airway dysfunction With part stress under crankshaft, the gas flow rate when reliability of the pump housing, also reduction lower cylinder exhaust is improved, is made an uproar to reduce exhaust Sound.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:

Fig. 1 shows the schematic cross-sectional view of pump assembly in the prior art；

Fig. 2 shows the schematic cross-sectional views of the embodiment of pump assembly according to the present utility model；

Fig. 3 shows the decomposition diagram of the part-structure of the pump assembly of Fig. 2；

Fig. 4 shows the schematic front view of the partition of the pump assembly of Fig. 3；

Fig. 5 shows the A-A of the partition of Fig. 4 to schematic cross-sectional view；

Fig. 6 shows the schematic cross-sectional view of the valve body of the pump assembly of Fig. 2.

Wherein, the appended drawing reference in above-mentioned attached drawing are as follows:

1, upper flange；2, upper cylinder；4, lower cylinder；5, lower flange；10, upper flange；20, upper cylinder；30, partition；31, valve Hole；32, upper exhaust passage；33, mounting hole；34, escape groove；35, the first bolt hole；36, first row stomata；40, lower cylinder； 41, lower gas vent；42, upper air-vent；43, the second bolt hole；44, second row stomata；50, lower flange；60, valve body；61, first Blind hole；70, needle.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

As shown in Figures 2 and 3, the pump assembly of the present embodiment includes: the upper flange 10 set gradually from top to bottom, upper gas Cylinder 20, partition 30, lower cylinder 40 and lower flange 50, lower cylinder 40 have lower gas vent 41, and the lower lower exhaust of the connection of gas vent 41 is logical Road, lower cylinder 40 also have upper air-vent 42, and partition 30 is equipped with valve opening 31 corresponding with upper air-vent 42 and connects with valve opening 31 Logical upper exhaust passage 32, valve body 60 is equipped in valve opening 31, and valve body 60 has the sealing state and opening of sealing upper air-vent 42 The exhaust condition of upper air-vent 42.

Using the pump assembly of the present embodiment, when lower cylinder 40 is vented, valve body 60 is in exhaust condition, a part of gas warp It crosses down gas vent 41 to be discharged by lower exhaust passage, another part passes through upper exhaust passage 32 by upper air-vent 42, valve opening 31 Discharge；When lower cylinder 40 is not vented, valve body 60 seals upper air-vent 42.By on lower cylinder 40 increase upper air-vent 42 and Increase the exhaust structure being connected to upper air-vent 42 on partition 30, so that the lower cylinder of pump assembly has double airway dysfunction, subtracts Part stress under light lower cylinder exhaust power consumption and crankshaft, improves gas flow rate when reliability, also reduction lower cylinder exhaust, thus Reduce exhaust noise.

In the present embodiment, pump assembly further includes needle 70, and partition 30 is equipped with for installing needle 70 and and valve opening The mounting hole 33 of 31 connections, one end of needle 70 is stretched out from mounting hole 33 to be connect with valve body 60, under the elastic force effect of needle 70, Valve body 60 is in sealing state；When exhaust under the influence of air pressure, valve body 60 is in the open state.When lower cylinder 40 is not vented, Needle 70 elastic force effect under, valve body 60 seal upper air-vent 42, lower cylinder 40 be vented when, valve body 60 by gas pressure on It rises, opens valve body 60, gas is flowed out from upper air-vent 42, is discharged by valve opening 31, upper exhaust passage 32.It is controlled by needle 70 The state of valve body 60, structure is simple, and control is easy.Specifically, the diameter of valve opening 31 is bigger than the size of upper air-vent 42.And it adopts With valve body and needle instead of the structure of general valve block, baffle and rivet, it also can reach and mention effect, the effect of noise reduction, Er Qiejie Structure is simple, takes up space small, and required block board thickness is small, is more useful on small-sized duplex cylinder compressor.

In the present embodiment, radial direction setting and its other end of the needle 70 along partition 30 is worn from the outer wall of partition 30 Out, in other words, mounting hole 33 is opened up between the outside of valve opening 31 and the outer wall of partition 30, not only facilitates installation needle, also just In processing partition.Specifically, needle 70 is rigidity height and the paxilla centainly deformed, aperture of the diameter than mounting hole can occur It is smaller.

In the present embodiment, as shown in Figure 2 and Figure 6, valve body 60 is equipped with the first blind hole with the one end fits of needle 70 61, the distance at the center of the first blind hole 61 to the lower end surface of partition 30 be greater than the center of needle 70 to the lower end surface of partition 30 away from From.When lower cylinder 40 is not vented, under the elastic force effect of needle 70, valve body 60 presses the upper surface of lower cylinder 40, by upper exhaust Hole 42 seals.Specifically, the first blind hole 61 of needle 70 and valve body 60 is interference fitted, convenient for assembly.

In the present embodiment, as shown in Fig. 2, the height of valve body 60 is smaller than the depth of valve opening 31, it is convenient for valve body when exhaust Movement.Specifically, valve body 60 is smooth and wear-resisting cylindrical body.

In the present embodiment, it as shown in figure 4, the hole wall of valve opening 31 is equipped with the escape groove 34 that evacuation needle 70 moves, keeps away It allows slot 34 to avoid the movement of needle 70, deforms convenient for needle 70.Specifically, escape groove 34 along the axially extending of partition 30 and For arc groove.

In the present embodiment, needle 70 is spring needle or reed, and structure is simple, easy to use.

In the present embodiment, as shown in figure 5, valve opening 31 is the second blind hole, i.e. it is blind to be equipped with second for the lower end surface of partition 30 Hole prevents valve opening to be connected to the compression chamber of upper cylinder.

In the present embodiment, as shown in Figure 3 and Figure 4, upper exhaust passage 32 be arranged in it is upper on the lower end surface of partition 30 It is vented logical groove, the exhaust hole outside pump assembly is discharged in gas by the upper connection of exhaust passage 32.The upper logical groove of exhaust can be under The upper surface of cylinder 40 is hermetically sealed, guarantees sealing performance, and Pocket Machining is convenient, reduces manufacturing cost.Specifically, exhaust hole passes through Flange 10, upper cylinder 20, partition 30, lower cylinder 40 and lower flange 50 are put on, exhaust hole includes be arranged on partition 30 One gas vent 36 and the second row stomata 44 being arranged on lower cylinder 40, the upper logical groove of exhaust are connected to first row stomata 36.Under Cylinder 40 be vented when, valve body 60 is risen by atmospheric pressure, gas from the upper air-vent 42 of lower cylinder flow out, by valve opening 31, on It is vented logical groove, pours in first row stomata 36, flows out the pump housing, completes exhaust process.

In the present embodiment, lower exhaust passage is arranged on lower flange 50 and is connected to exhaust hole, specifically, lower exhaust Channel is connected to second row stomata 44.Upper exhaust passage 32 and lower exhaust passage pass through exhaust hole and gas are discharged, and simplify The structure of pump assembly.

In the present embodiment, the first bolt hole 35 is additionally provided on partition, lower cylinder is equipped with corresponding with the first bolt hole 35 The second bolt hole 43, upper flange, upper cylinder and lower flange also be provided with bolt hole, upper flange, upper cylinder, partition, lower cylinder and Lower flange is bolted, fixed easy.

In the present embodiment, increase by 1 times of block board thickness, upper cylinder can also be arranged using the exhaust structure of lower cylinder Gas, still, this is unfavorable for the volume miniaturization of compressor, and the deformation quantity of crankshaft, can reduce its service life when also increasing operating.

The utility model also provides a kind of compressor, comprising: pump assembly, pump assembly are above-mentioned pump assembly.

It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:

Increase on gas vent and partition on lower cylinder and increases exhaust structure, thus make the twin-tub pump housing that there are three exhaust structures, Reduce exhaust power consumption, the exhaust noise of the twin-tub pump housing.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among the protection scope created still in the utility model.

Claims (10)

1. a kind of pump assembly, comprising: upper flange (10), upper cylinder (20), the partition (30), lower gas set gradually from top to bottom Cylinder (40) and lower flange (50), the lower cylinder (40) have lower gas vent (41), the lower lower exhaust of gas vent (41) connection Channel, which is characterized in that the lower cylinder (40) also has upper air-vent (42), and the partition (30) is equipped with and the upper row The upper exhaust passage (32) stomata (42) corresponding valve opening (31) and be connected to the valve opening (31) is equipped in the valve opening (31) Valve body (60), the valve body (60) have the sealing state for sealing the upper air-vent (42) and open the upper air-vent (42) Exhaust condition.

2. pump assembly according to claim 1, which is characterized in that the pump assembly further includes needle (70), described Partition (30) is equipped with the mounting hole (33) for installing the needle (70) and being connected to the valve opening (31), the needle (70) one end is stretched out from the mounting hole (33) to be connect with the valve body (60), under the elastic force effect of the needle (70), The valve body (60) is in the sealing state；When exhaust under the influence of air pressure, the valve body (60) is in the open state.

3. pump assembly according to claim 2, which is characterized in that radial direction of the needle (70) along the partition (30) Direction is arranged and its other end is pierced by from the outer wall of the partition (30).

4. pump assembly according to claim 3, which is characterized in that the valve body (60) is equipped with and the needle (70) One end fits the first blind hole (61), the distance of lower end surface of the center of first blind hole (61) to the partition (30) is big In the center of the needle (70) to the distance of the lower end surface of the partition (30).

5. pump assembly according to claim 2, which is characterized in that the hole wall of the valve opening (31) is equipped with described in evacuation The escape groove (34) of needle (70) movement.

6. pump assembly according to claim 2, which is characterized in that the needle (70) is spring needle or reed.

7. pump assembly according to claim 1, which is characterized in that the valve opening (31) is the second blind hole.

8. pump assembly according to claim 1, which is characterized in that the upper exhaust passage (32) be setting it is described every Groove is led in upper exhaust on the lower end surface of plate (30), and gas is discharged outside the pump assembly for upper exhaust passage (32) connection Exhaust hole.

9. pump assembly according to claim 8, which is characterized in that the lower exhaust passage is arranged in the lower flange (50) it is connected on and with the exhaust hole.

10. a kind of compressor, comprising: pump assembly, which is characterized in that the pump assembly is any one of claims 1 to 9 The pump assembly.