CN216665862U

CN216665862U - Valve group component of compressor

Info

Publication number: CN216665862U
Application number: CN202220015888.6U
Authority: CN
Inventors: 代荆晖; 冯皓; 范洪兴; 张昌祥; 彭珍金
Original assignee: HUAYI COMPRESSOR (JINGZHOU) CO LTD
Current assignee: HUAYI COMPRESSOR (JINGZHOU) CO LTD
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-06-03
Anticipated expiration: 2032-01-05

Abstract

The utility model provides a compressor valve group component, which comprises a crankcase and a valve plate fixed on a cylinder hole of the crankcase, wherein the valve plate is provided with an air inlet and an air outlet, a valve plate for blocking the air inlet is welded on the side surface of the valve plate facing the cylinder hole, a tongue plate capable of swinging relative to the air inlet is integrally formed on the valve plate in a cutting mode, an accommodating groove in clearance fit with the valve plate is arranged at the outlet of the cylinder hole in the crankcase, the height of the valve plate is equal to the depth of the accommodating groove, and the movable end of the tongue plate completely covers the air inlet. The utility model solves the problem that the processing cost of the lifting limiter with the valve plate stability increased and the processing cost of the matching structure are high in the prior art, and the effect of reducing the cost is achieved.

Description

Compressor valve group component

Technical Field

The utility model relates to the technical field of compressors, in particular to a valve group component of a compressor.

Background

The refrigeration compressor generally adopts a valve group component, and the valve group component has the functions of sucking low-pressure gas at normal temperature and discharging high-pressure gas at high temperature. The valve assembly of the existing refrigeration compressor generally comprises an air suction valve plate 5, a valve plate 4 and an air discharge valve plate, wherein the air suction valve plate and the air discharge valve plate are respectively arranged at two sides of the valve plate, the air suction valve plate covers an air suction hole of the valve plate, and the air discharge valve plate covers an air discharge hole of the valve plate.

In order to save the material of the valve plate, chinese patent CN202789440U discloses a valve group component of a refrigeration compressor and a refrigeration compressor with the same, which reduces the production cost of the valve plate by reducing most of the material for limiting of the suction valve plate and by directly welding the tail of the suction valve plate on the valve plate. But in the use, the valve block is only fixed through two solder joints of afterbody, gaseous constantly strikes the valve block, lead to stability relatively poor, it is spacing to the valve block to have set up the lift stopper between discharge valve block and compressor cylinder, but the installation of lift stopper need slot on the holding tank of crankcase cylinder face, be used for holding the lift stopper, and the required precision of slotting processing is high, require in the tip card of lift stopper just in time goes into the draw-in groove, otherwise in the use, the lift stopper can take place to rock, lead to manufacturing cost higher.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a compressor valve group component, which solves the problem that the processing cost of a lifting limiter with a valve plate stability increasing function and a matching structure in the prior art is high.

According to an embodiment of the utility model, the compressor valve group component comprises a crankcase and a valve plate fixed on a cylinder hole of the crankcase, wherein the valve plate is provided with an air inlet hole and an air outlet hole, a valve plate for blocking the air inlet hole is welded on the side surface, facing the cylinder hole, of the valve plate, a tongue plate capable of swinging relative to the air inlet hole is integrally formed on the valve plate in a cutting mode, an accommodating groove in clearance fit with the valve plate is arranged at the position of the outlet of the cylinder hole in the crankcase, the height of the valve plate is equal to the depth of the accommodating groove, and the movable end of the tongue plate completely covers the air inlet hole.

Preferably, the width of the two ends of the tongue plate is larger than that of the middle part of the tongue plate, the edges of the two sides of the middle part of the tongue plate are arc-shaped, and the edges of the tongue plate are connected through arcs.

Preferably, the valve plate comprises a sealing gasket fixedly sleeved on the outer peripheral surface, the inner diameter of the sealing gasket is larger than that of the cylinder hole, and the sealing gasket is bonded with the opposite side surface of the valve plate.

Preferably, the valve plate is uniformly provided with welding spots and fixed on the valve plate through the welding spots.

Preferably, a piston rod is arranged in the cylinder hole in a sliding mode, and a groove used for containing the tongue plate is formed in the movable end of the piston rod.

Compared with the prior art, the utility model has the following beneficial effects:

the air inlet hole on the valve plate is sealed by the valve plate which is integrally cut and formed, the material of the valve plate is smaller than that of the existing integral valve plate, the size is smaller, and the material cost is saved; the tongue plate is formed by cutting on the valve plate, and the root of the tongue plate is connected to the valve plate, so that the stability of the tongue plate is higher than that of the existing valve plate directly welded, a lifting limiter can be omitted, and the processing cost of a valve group component of the compressor is saved; the crankcase cylinder surface accommodating groove does not need an additional milling process, and can be processed together in the cylinder hole honing process, so that the processing cost is saved; through valve block and holding tank clearance fit, the effectual clearance volume that has reduced has improved the leakproofness of valves subassembly.

Drawings

Fig. 1 is a schematic structural view of a crankcase according to an embodiment of the utility model.

FIG. 2 is a front view of the valve plate according to the embodiment of the present invention.

FIG. 3 is a schematic diagram of a back structure of the valve plate according to an embodiment of the present invention.

Fig. 4 is a schematic view of a piston rod in a crankcase according to an embodiment of the utility model.

In the above drawings: 1. a crankcase; 2. accommodating grooves; 3. a cylinder bore; 4. a valve plate; 5. a valve plate; 6. a tongue plate; 7. an air outlet; 8. welding spots; 9. an air inlet; 10. a piston rod; 11. a groove; 12. and a sealing gasket.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1 to 4, in order to reduce the production cost of a compressor valve bank component, an embodiment of the utility model provides a compressor valve bank component, which includes a crankcase 1 and a valve plate 4 fixed on a cylinder hole 3 of the crankcase 1, wherein the valve plate 4 is provided with an air inlet 9 and an air outlet 7, a valve plate 5 for blocking the air inlet 9 is welded on a side surface of the valve plate 4 facing the cylinder hole 3, a tongue plate 6 capable of swinging relative to the air inlet 9 is integrally formed on the valve plate 5 in a cutting manner, an accommodating groove 2 in clearance fit with the valve plate 5 is arranged at an outlet of the cylinder hole 3 in the crankcase 1, the height of the valve plate 5 is equal to the depth of the accommodating groove 2, and a movable end of the tongue plate 6 completely covers the air inlet 9.

The valve plate 4 is fixed on the crankcase 1 through bolts, and an air outlet 7 on the valve plate 4 penetrates through the valve plate 4 and the tongue plate 6; the valve plate 5 is a circular plate, when the valve plate 4 is installed, the valve plate 5 is inserted into the accommodating groove 2, and after the valve plate 4 is fixed, the end part of the valve plate 5 is attached to the inner bottom surface of the accommodating groove 2 to seal the cylinder hole 3; when the compressor is used for air intake, negative pressure is generated in the cylinder hole 3, the movable end of the tongue plate 6 is elastically deformed towards the cylinder hole 3 by external atmospheric pressure, an air intake channel of the compressor is further opened, and external air enters the cylinder hole 3 through the air intake hole 9; when the air pressure in the compressor is similar to the external air pressure, the tongue plate 6 rebounds and covers the cylinder hole 3, and the sealing of the compressor is realized. The tongue plate 6 is installed by welding the valve plate 5, and the area of the valve plate 5 is larger than that of the tongue plate 6, so that welding processing is easy.

As shown in fig. 2, in order to facilitate opening of the tongue plate 6, the width of the two ends of the tongue plate 6 is greater than the width of the middle part of the tongue plate 6, and the two side edges of the middle part of the tongue plate 6 are arc-shaped, and the edges of the tongue plate 6 are connected through an arc. The middle part of the tongue plate 6 is narrower than the two ends of the tongue plate 6, so that when the compressor enters air, the movable end of the tongue plate 6 is easy to elastically deform and reset.

As shown in fig. 1, 2 and 4, in order to further enhance the sealing performance of the valve assembly, the valve plate 5 includes a sealing gasket 12 fixedly sleeved on the outer peripheral surface, the inner diameter of the sealing gasket 12 is greater than the inner diameter of the cylinder hole 3, and the sealing gasket 12 is adhered to the opposite side surfaces of the valve plate 4. The periphery of the sealing gasket 12 is attached to the inner wall of the accommodating groove 2, so that the edge of the accommodating groove 2 is sealed; meanwhile, the inner diameter of the sealing gasket 12 is larger than that of the cylinder hole 3, so that the surface of the sealing gasket 12 is prevented from being damaged in the air suction process of the compressor.

As shown in fig. 2-3, in order to improve the stability of the valve plate 5, welding points 8 are uniformly arranged on the valve plate 5 and fixed on the valve plate 4 through the welding points 8. The valve plate 5 is welded on the valve plate 4 through a plurality of welding spots, so that the valve plate 5 is effectively fixed.

As shown in fig. 2 and 4, in order to ensure the stability of the valve plate 5 and the tongue plate 6 and avoid the piston rod 10 from impacting the valve plate 5 and the tongue plate 6 in the stretching process, the piston rod 10 is slidably arranged in the cylinder hole 3, and the movable end of the piston rod 10 is provided with a groove 11 for accommodating the tongue plate 6. The valve block 5 is cut off with the circle of the diameter of the end of the piston rod 10 and the tongue piece 6 is located in the circle, in the process of air outlet of the compressor, the cylinder surface needs to be pushed out by the movable end needed by the piston rod 10 to ensure complete discharge of air in the cylinder hole 3, the contact between the piston rod 10 and the valve block 5 and the tongue piece 6 on the valve block 5 needs to be avoided in the process of pushing out the piston rod 10, interference is prevented, the protruding part of the movable end of the piston rod 10 is accommodated through the circular cut-off part on the valve block 5, and the movable end of the piston rod 10 is prevented from contacting with the tongue piece 6 through the groove 11 on the piston rod 10.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a compressor valves subassembly, includes crankcase (1) and valve plate (4) on being fixed in cylinder hole (3) of crankcase (1), has seted up inlet port (9) and venthole (7) on valve plate (4), its characterized in that: valve plate (4) weld on the side towards jar hole (3) have valve block (5) that are used for blockking up inlet port (9), integrative cutting shaping has hyoplastron (6) that can rock relative inlet port (9) on valve block (5), jar hole (3) exit in crankcase (1) is provided with holding tank (2) with valve block (5) clearance fit, the degree of depth of highly and holding tank (2) of valve block (5) equals, the expansion end of hyoplastron (6) covers inlet port (9) completely.

2. A compressor valve block assembly as claimed in claim 1, wherein: the width of the two ends of the tongue plate (6) is larger than that of the middle part of the tongue plate, the edges of the two sides of the middle part of the tongue plate (6) are arc-shaped, and the edges of the tongue plate (6) are connected through arcs.

3. A compressor valve block assembly as defined in claim 1 wherein: the valve plate (5) comprises a sealing gasket (12) fixedly sleeved on the outer peripheral surface, the inner diameter of the sealing gasket (12) is larger than that of the cylinder hole (3), and the sealing gasket (12) is bonded with the opposite side surface of the valve plate (4).

4. A compressor valve block assembly as defined in claim 3 wherein: the valve plate (5) is uniformly provided with welding spots (8) and is fixed on the valve plate (4) through the welding spots (8).

5. A compressor valve block assembly as defined in claim 1 wherein: a piston rod (10) is arranged in the cylinder hole (3) in a sliding mode, and a groove (11) used for containing the tongue plate (6) is formed in the movable end of the piston rod (10).