Air cylinder assembly, pump body structure and compressor

Abstract

The air cylinder assembly comprises a first air cylinder and a second air cylinder, the first air cylinder penetrates through the two ends of the first air cylinder and is provided with a first cavity, the second air cylinder penetrates through the two ends of the second air cylinder and is provided with a second cavity, and a first partition plate is integrally formed on the opposite end faces of the first air cylinder and the second air cylinder; a first partition plate is integrally formed on the end face, opposite to the first air cylinder, of the second air cylinder, a second partition plate is integrally formed on the end face, opposite to the first air cylinder, of the second air cylinder, the first partition plate and the second partition plate are combined to form a middle partition plate with a middle hole, the middle partition plate separates the first cavity from the second cavity, and the middle hole is in clearance fit with a crankshaft. According to the air cylinder assembly, the middle partition plate does not need to be limited by the eccentric part of the crankshaft, installation is convenient, and the sealing performance between the end face of the piston and the middle hole of the middle partition plate is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressor technical field, in particular to a cylinder subassembly, pump body structure and compressor. BACKGROUND

[0002] Rotary compressor, working principle is to use slider to divide cylinder into two spaces of suction and exhaust chamber, when motor is electrified, stator coil produces electromagnetic field, rotor cuts magnetic line of force and produces power and drives crankshaft of pump body to rotate and makes piston rotate in cylinder and compresses refrigerant. Under the action of crankshaft, the volume of suction and exhaust chamber is changed constantly, inhales low temperature and low pressure gaseous refrigerant, and after compressing into high temperature and high pressure gaseous refrigerant, discharges pump body, and circulates like this.

[0003] Among them, the pump body structure of compressor mainly comprises upper bearing, upper cylinder, intermediate plate, lower cylinder, lower bearing and crankshaft, the upper cylinder and the lower cylinder are separated by independent intermediate plate, in this way, the middle hole size of intermediate plate must be greater than the eccentric part of crankshaft to install crankshaft, thereby increasing the assembly difficulty of pump body structure. In addition, the thickness size of intermediate plate is limited due to the size of the two eccentric parts of crankshaft, and the size of middle hole limits the expansion of displacement of pump body structure, which is not conducive to the flat design of pump body structure. SUMMARY

[0004] Therefore, the utility model discloses the purpose at overcoming the deficiency of prior art, providing a cylinder subassembly, pump body structure and compressor, according to the cylinder subassembly, pump body structure and compressor of utility model embodiment, the eccentric part of crankshaft is not limited to the middle partition of intermediate plate, and the sealing performance between piston end face and middle hole of middle partition is effectively improved.

[0005] In order to realize the above-mentioned purpose, the utility model embodiment first aspect provides a cylinder subassembly, comprising first cylinder, second cylinder, the first cylinder is opened with first cavity at both ends, the second cylinder is opened with second cavity at both ends, the opposite end face of first cylinder and second cylinder is integrally formed with first partition plate, the opposite end face of second cylinder and first cylinder is integrally formed with second partition plate, the first partition plate and second partition plate are combined with each other and form the middle partition with middle hole, the first cavity and second cavity are separated by middle partition, and the middle hole is formed with clearance fit with crankshaft.

[0006] Thus, according to the cylinder assembly of the embodiment of the utility model, by integrally forming the first partition plate on the first cylinder and the second partition plate on the second cylinder, when the first cylinder and the second cylinder cooperate with each other, the first partition plate and the second partition plate can be combined as the middle partition plate; that is to say, the cylinder assembly of the embodiment of the utility model splits the middle partition plate into two parts, so as to facilitate the installation and cooperation of the first cylinder, the second cylinder and the eccentric part of the crankshaft, and then the first partition plate and the second partition plate are combined, so as to form the clearance fit of the crankshaft; in this way, the installation between the cylinder assembly and the crankshaft is simple, the middle hole of the middle partition plate formed by the first partition plate and the second partition plate only needs to match the outer diameter of the crankshaft, without being limited by the eccentric part on the crankshaft, so that the influence of the middle hole on the pump body structure is reduced, which is beneficial to the flat design of the pump body structure, and at the same time, the sealing property between the piston end face and the middle hole of the middle partition plate is effectively improved, and then the performance of the cylinder assembly is improved.

[0007] As an implementation form, the first partition plate is connected with the end face of the second cylinder provided with the second partition plate, and the second partition plate is connected with the end face of the first cylinder provided with the first partition plate.

[0008] As an implementation form, the middle partition plate formed by the mutual engagement of the first partition plate and the second partition plate is a disc structure, and the middle hole is coaxially arranged with the middle partition plate.

[0009] As an implementation form, the first partition plate and the second partition plate are both arc structures, and the central angle formed by the two arc ends of the first partition plate and the center thereof is greater than or equal to 90°; or the central angle formed by the two arc ends of the second partition plate and the center thereof is greater than or equal to 90°.

[0010] As an implementation form, the first partition plate is provided with a first arc hole, the second partition plate is provided with a second arc hole, and the shape of the middle hole formed by the first arc hole and the second arc hole is circular.

[0011] As an implementation form, the first partition plate and the second partition plate are both semicircular structures.

[0012] As an implementation form, the two ports of the first partition plate in the circumferential direction are step structures, the two ports of the second partition plate in the circumferential direction are step structures, and the two ports of the first partition plate in the circumferential direction and the two ports of the second partition plate in the circumferential direction are respectively tightly combined together.

[0013] As an implementation form, the two ports of the first partition plate in the circumferential direction are in a slope structure, the two ports of the second partition plate in the circumferential direction are in a slope structure, and the two ports of the first partition plate in the circumferential direction and the two ports of the second partition plate in the circumferential direction are tightly combined together respectively.

[0014] The utility model discloses an embodiment second aspect provides a kind of pump body structure, it includes the cylinder assembly described above any, still include first bearing, second bearing, crankshaft, the first bearing with the second bearing are respectively arranged on the first cylinder and the second cylinder, to respectively the first cavity and the second cavity are shielded, the crankshaft is arranged on the first bearing, first cylinder, second cylinder and second bearing. According to the pump body structure of the utility model embodiment, middle partition plate does not need to be limited to eccentric portion of crankshaft, it is convenient to install, and effectively improve the sealing performance between piston end face and the middle hole of middle partition plate.

[0015] The utility model discloses an embodiment third aspect provides a kind of compressor, it includes the pump body structure described above any. According to the compressor of the utility model embodiment, middle partition plate does not need to be limited to eccentric portion of crankshaft, it is convenient to install, and effectively improve the sealing performance between piston end face and the middle hole of middle partition plate.

[0016] For better understanding and implementation, the utility model is explained in detail below in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is one of the structure schematic diagram of the cylinder assembly of the utility model embodiment;

[0018] Figure 2 It is Figure 1 It is one of the exploded schematic view of the cylinder assembly shown;

[0019] Figure 3 It is Figure 1 It is the second exploded schematic view of the cylinder assembly shown;

[0020] Figure 4 It is one of the structure schematic diagram of the first cylinder of the cylinder assembly of the utility model embodiment;

[0021] Figure 5 It is one of the structure schematic diagram of the second cylinder of the cylinder assembly of the utility model embodiment;

[0022] Figure 6 It is the second structure schematic diagram of the cylinder assembly of the utility model embodiment;

[0023] Figure 7 It is Figure 6 It is the exploded schematic view of the cylinder assembly shown;

[0024] Figure 8 This is a second schematic diagram of the structure of the first cylinder of the cylinder assembly in an embodiment of the present utility model;

[0025] Figure 9 This is a second schematic diagram of the structure of the second cylinder of the cylinder assembly in an embodiment of the present utility model;

[0026] Figure 10 This is the third schematic diagram of the cylinder assembly according to an embodiment of the present utility model;

[0027] Figure 11 for Figure 10 An exploded view of the cylinder assembly shown.

[0028] Figure 12 This is a schematic diagram of the pump body structure according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. First cylinder; 11. First partition plate; 12. First arc-shaped hole; 13. First cavity; 20. Second cylinder; 21. Second partition plate; 22. Second arc-shaped hole; 23. Second cavity; 30. Upper bearing; 40. Crankshaft; 41. Eccentric part. Detailed Implementation

[0031] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0032] In related technologies, the compressor pump body structure mainly consists of an upper bearing, an upper cylinder, an intermediate plate, a lower cylinder, a lower bearing, and a crankshaft. The upper and lower cylinders are separated by an independent intermediate plate. This necessitates that the central hole of the intermediate plate be larger than the eccentric portion of the crankshaft to accommodate its installation, thus increasing the assembly difficulty of the pump body structure. Furthermore, the thickness of the intermediate plate is limited by its need to accommodate the two eccentric portions of the crankshaft, and the size of the central hole restricts the pump body's displacement, hindering the design of a flattened pump body structure.

[0033] In view of this, the present invention provides a cylinder assembly, a pump body structure and a compressor. According to the cylinder assembly, pump body structure and compressor of the present invention, the middle partition does not need to be limited by the eccentric part 41 of the crankshaft 40, which makes installation convenient and effectively improves the sealing performance between the piston end face and the middle hole of the middle partition.

[0034] Please see Figures 1 to 11The utility model discloses a first aspect provides a kind of cylinder assembly, including first cylinder 10, second cylinder 20, first cylinder 10 is opened with first cavity 13 at its two ends, second cylinder 20 is opened with second cavity 23 at its two ends, first cylinder 10 and the end face of second cylinder 20 opposite integrally formed with first partition plate 11, second cylinder 20 and the end face of first cylinder 10 opposite integrally formed with second partition plate 21, first partition plate 11 and second partition plate 21 mutually combine and form the midseptum with hole, midseptum separates first cavity 13 and second cavity 23, hole and crankshaft 40 form clearance fit.

[0035] Wherein, the end face of the first partition plate 11 of the utility model embodiment is connected with the end face of the second cylinder 20 provided with the second partition plate 21, and the end face of the second partition plate 21 is connected with the end face of the first cylinder 10 provided with the first partition plate 11.

[0036] Therefore, according to the cylinder assembly of the utility model embodiment, by integrally forming the first partition plate 11 on the first cylinder 10 and the second partition plate 21 on the second cylinder 20, when the first cylinder 10 and the second cylinder 20 cooperate with each other, the first partition plate 11 and the second partition plate 21 can be combined as a midseptum. That is, the cylinder assembly of the utility model embodiment splits the midseptum into two parts to facilitate the installation and cooperation of the first cylinder 10 and the second cylinder 20 with the eccentric part 41 of the crankshaft 40, and then the first partition plate 11 and the second partition plate 21 are combined to form a clearance fit with the crankshaft 40. In this way, the installation between the cylinder assembly and the crankshaft 40 is simple, the hole of the midseptum formed by the first partition plate 11 and the second partition plate 21 only needs to match the outer diameter of the crankshaft 40, without being limited by the eccentric part 41 on the crankshaft 40, which reduces the impact of the hole on the displacement of the pump body structure, facilitates the flat design of the pump body structure, effectively improves the sealing between the piston end face and the hole of the midseptum, and further improves the performance of the cylinder assembly.

[0037] Optionally, in some embodiments of the utility model, the first partition plate 11 and the second partition plate 21 are mutually engaged to form a center partition plate in disc structure, and the center hole is coaxially arranged with the center partition plate. In these embodiments, the first partition plate 11 and the second partition plate 21 are both in arc structure, and the central angle formed by the two arc-shaped ends of the first partition plate 11 and the center thereof is greater than or equal to 90 °; or the central angle formed by the two arc-shaped ends of the second partition plate 21 and the center thereof is greater than or equal to 90 °. In addition, in these embodiments, the first arc-shaped hole 12 is arranged on the first partition plate 11, and the second arc-shaped hole 22 is arranged on the second partition plate 21, and the shape of the center hole formed by the first arc-shaped hole 12 and the second arc-shaped hole 22 is circular. It can be understood that in these embodiments, the size ratio of the first partition plate 11 or the second partition plate 21 is greater than or equal to one fourth of the center partition plate.

[0038] Optionally, in some embodiments of the utility model, the two ports of the first partition plate 11 in the circumferential direction are in step structure, the two ports of the second partition plate 21 in the circumferential direction are in step structure, and the two ports of the first partition plate 11 in the circumferential direction and the two ports of the second partition plate 21 in the circumferential direction are respectively tightly combined together.

[0039] Optionally, in some embodiments of the utility model, the two ports of the first partition plate 11 in the circumferential direction are in slope structure, the two ports of the second partition plate 21 in the circumferential direction are in slope structure, and the two ports of the first partition plate 11 in the circumferential direction and the two ports of the second partition plate 21 in the circumferential direction are respectively tightly combined together.

[0040] It is worth understanding that the structure of the combination of the first partition plate 11 and the second partition plate 21 of the utility model is not limited to the above-mentioned embodiments, and can be deformed and improved according to the above-mentioned embodiments, which belongs to the protection scope of the utility model.

[0041] The following will be combined Figures 1 to 5 The following will be combined

[0042] This embodiment provides a cylinder assembly, including a first cylinder 10 and a second cylinder 20. The first cylinder 10 has a first cavity 13 extending through both ends, and the second cylinder 20 has a second cavity 23 extending through both ends. A first partition plate 11 is integrally formed on the opposite end faces of the first cylinder 10 and the second cylinder 20, and a second partition plate 21 is integrally formed on the opposite end face of the second cylinder 20 and the first cylinder 10. The first partition plate 11 and the second partition plate 21 are combined to form a central partition plate with a central hole, which separates the first cavity 13 and the second cavity 23. The central hole forms a clearance fit with the crankshaft 40. In this embodiment, the end face of the first partition plate 11 away from the first cylinder 10 is in close contact with the end face of the second cylinder 20 where the second partition plate 21 is located, and the end face of the second partition plate 21 away from the first cylinder 10 is in close contact with the end face of the first cylinder 10 where the first partition plate 11 is located. Furthermore, in this embodiment, the first partition plate 11 is provided with a first arc-shaped hole 12, and the second partition plate 21 is provided with a second arc-shaped hole 22. The central hole formed by the first arc-shaped hole 12 and the second arc-shaped hole 22 is circular.

[0043] Specifically, in this embodiment, the partition formed by the interlocking of the first partition plate 11 and the second partition plate 21 is a disc-shaped structure, with the central hole coaxially arranged with the partition plate. In this embodiment, both the first partition plate 11 and the second partition plate 21 are arc-shaped structures. The central angle formed by the two arc-shaped ends of the first partition plate 11 and its center is 90°, and correspondingly, the central angle formed by the two arc-shaped ends of the second partition plate 21 and its center is 270°.

[0044] Furthermore, in this embodiment, the two ports of the first partition plate 11 along the circumferential direction are stepped structures, and the two ports of the second partition plate 21 along the circumferential direction are stepped structures, and the two ports of the first partition plate 11 along the circumferential direction and the two ports of the second partition plate 21 along the circumferential direction are respectively tightly connected together. The stepped structure is a two-stage step.

[0045] The following is combined Figures 6 to 9 The following is a detailed description of a specific embodiment of the cylinder assembly according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as limiting the present invention.

[0046] The embodiment provides a cylinder assembly, which comprises a first cylinder 10, a second cylinder 20, a first cavity 13 is formed through two ends of the first cylinder 10, a second cavity 23 is formed through two ends of the second cylinder 20, a first partition plate 11 is integrally formed on the opposite end face of the first cylinder 10 and the second cylinder 20, a second partition plate 21 is integrally formed on the opposite end face of the second cylinder 20 and the first cylinder 10, the first partition plate 11 and the second partition plate 21 are combined with each other and form a middle partition plate with a middle hole, the middle partition plate separates the first cavity 13 and the second cavity 23, and the middle hole is in clearance fit with a crankshaft 40. In the embodiment of the utility model, the end face of the first partition plate 11 away from the first cylinder 10 is connected with the end face of the second cylinder 20 provided with the second partition plate 21, and the end face of the second partition plate 21 away from the first cylinder 10 is connected with the end face of the first cylinder 10 provided with the first partition plate 11. In addition, in the embodiment, a first arc-shaped hole 12 is arranged on the first partition plate 11, a second arc-shaped hole 22 is arranged on the second partition plate 21, and the middle hole formed by the first arc-shaped hole 12 and the second arc-shaped hole 22 is circular.

[0047] Specifically, in the embodiment, the middle partition plate formed by the mutual engagement of the first partition plate 11 and the second partition plate 21 is a disc-shaped structure, and the middle hole is coaxially arranged on the middle partition plate. In the embodiment, the first partition plate 11 and the second partition plate 21 are both arc-shaped structures, the central angle formed by the two arc-shaped ends of the first partition plate 11 and the center of the first partition plate 11 is equal to 180 DEG, and correspondingly, the central angle formed by the two arc-shaped ends of the second partition plate 21 and the center of the second partition plate 21 is equal to 180 DEG. That is to say, the first partition plate 11 and the second partition plate 21 in the embodiment are both semi-circular structures.

[0048] In addition, in the embodiment, the two ports of the first partition plate 11 in the circumferential direction are planar structures, the two ports of the second partition plate 21 in the circumferential direction are planar structures, and the two ports of the first partition plate 11 in the circumferential direction and the two ports of the second partition plate 21 in the circumferential direction are tightly combined with each other respectively.

[0049] The following will be described in combination with Figures 1 to 5 The detailed description is described according to one specific embodiment of the cylinder assembly of the utility model, and it is worth understanding that the following is only a demonstrative description and cannot be understood as the limitation of the utility model.

[0050] The embodiment provides a cylinder assembly, which comprises a first cylinder 10, a second cylinder 20, a first cavity 13 is formed through two ends of the first cylinder 10, a second cavity 23 is formed through two ends of the second cylinder 20, a first partition plate 11 is integrally formed on the opposite end face of the first cylinder 10 and the second cylinder 20, a second partition plate 21 is integrally formed on the opposite end face of the second cylinder 20 and the first cylinder 10, the first partition plate 11 and the second partition plate 21 are combined with each other and form a middle partition plate with a middle hole, the middle partition plate separates the first cavity 13 and the second cavity 23, and the middle hole is in clearance fit with a crankshaft 40. In the embodiment of the utility model, the end face of the first partition plate 11 away from the first cylinder 10 is connected with the end face of the second cylinder 20 provided with the second partition plate 21, and the end face of the second partition plate 21 away from the first cylinder 10 is connected with the end face of the first cylinder 10 provided with the first partition plate 11. In addition, in the embodiment, a first arc-shaped hole 12 is arranged on the first partition plate 11, a second arc-shaped hole 22 is arranged on the second partition plate 21, and the middle hole formed by the first arc-shaped hole 12 and the second arc-shaped hole 22 is circular.

[0051] Specifically, in the embodiment, the middle partition plate formed by the mutual engagement of the first partition plate 11 and the second partition plate 21 is a disc-shaped structure, and the middle hole is coaxially arranged on the middle partition plate. In the embodiment, the first partition plate 11 and the second partition plate 21 are both arc-shaped structures, the central angle formed by the two arc-shaped ends of the first partition plate 11 and the center thereof is equal to 270 degrees, and correspondingly, the central angle formed by the two arc-shaped ends of the second partition plate 21 and the center thereof is equal to 90 degrees.

[0052] In addition, in the embodiment, the two ports of the first partition plate 11 in the circumferential direction are in step structure, the two ports of the second partition plate 21 in the circumferential direction are in step structure, and the two ports of the first partition plate 11 in the circumferential direction and the two ports of the second partition plate 21 in the circumferential direction are tightly combined with each other respectively. The step structure is a two-step structure.

[0053] The following will be described in detail Figures 10 to 11 The following will be described in detail

[0054] This embodiment provides a cylinder assembly, including a first cylinder 10 and a second cylinder 20. The first cylinder 10 has a first cavity 13 extending through both ends, and the second cylinder 20 has a second cavity 23 extending through both ends. A first partition plate 11 is integrally formed on the opposite end faces of the first cylinder 10 and the second cylinder 20, and a second partition plate 21 is integrally formed on the opposite end face of the second cylinder 20 and the first cylinder 10. The first partition plate 11 and the second partition plate 21 are combined to form a central partition plate with a central hole, which separates the first cavity 13 and the second cavity 23. The central hole forms a clearance fit with the crankshaft 40. In this embodiment, the end face of the first partition plate 11 away from the first cylinder 10 is in close contact with the end face of the second cylinder 20 where the second partition plate 21 is located, and the end face of the second partition plate 21 away from the first cylinder 10 is in close contact with the end face of the first cylinder 10 where the first partition plate 11 is located. Furthermore, in this embodiment, the first partition plate 11 is provided with a first arc-shaped hole 12, and the second partition plate 21 is provided with a second arc-shaped hole 22. The central hole formed by the first arc-shaped hole 12 and the second arc-shaped hole 22 is circular.

[0055] Specifically, in this embodiment, the partition plate formed by the interlocking of the first partition plate 11 and the second partition plate 21 is a disc-shaped structure, with the central hole coaxially arranged with the partition plate. In this embodiment, both the first partition plate 11 and the second partition plate 21 are arc-shaped structures. The central angle formed by the two arc-shaped ends of the first partition plate 11 and its center is equal to 180°, and correspondingly, the central angle formed by the two arc-shaped ends of the second partition plate 21 and its center is also equal to 180°. That is to say, in this embodiment, both the first partition plate 11 and the second partition plate 21 are semi-circular structures.

[0056] Furthermore, in this embodiment, the two ports of the first partition plate 11 along the circumferential direction are sloped structures, the two ports of the second partition plate 21 along the circumferential direction are sloped structures, and the two ports of the first partition plate 11 along the circumferential direction and the two ports of the second partition plate 21 along the circumferential direction are tightly connected together.

[0057] like Figure 12 As shown, a second aspect of this utility model provides a pump body structure, which includes any of the cylinder assemblies mentioned above, and further includes a first bearing, a second bearing, and a crankshaft 40. The first bearing and the second bearing are respectively disposed on the first cylinder 10 and the second cylinder 20 to respectively shield the first cavity 13 and the second cavity 23. The crankshaft 40 passes through the first bearing, the first cylinder 10, the second cylinder 20, and the second bearing. According to the pump body structure of this utility model embodiment, the partition plate does not need to be restricted by the eccentric portion 41 of the crankshaft 40, making installation convenient and effectively improving the sealing performance between the piston end face and the central hole of the partition plate.

[0058] Optionally, in some embodiments of the present application, the outer diameter of the crankshaft 40 is d, the inner diameter of the middle hole of the middle plate is D, and D-d≥0.5mm.

[0059] The third aspect of the present application provides a compressor comprising the pump body structure of any one of the above. The compressor according to the present application does not need to be limited to the eccentric part 41 of the crankshaft 40, is convenient to install, and effectively improves the sealing performance between the piston end face and the middle hole of the middle plate.

[0060] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0061] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application cylinder assembly, pump body structure and compressor. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A cylinder assembly, characterized in that: comprising a first cylinder and a second cylinder, the first cylinder is provided with a first cavity through both ends, the second cylinder is provided with a second cavity through both ends, the opposite end face of the first cylinder is integrally formed with a first partition plate, the opposite end face of the second cylinder is integrally formed with a second partition plate, the first partition plate and the second partition plate are combined with each other to form a middle partition plate with a middle hole, the middle partition plate separates the first cavity and the second cavity, and the middle hole is in clearance fit with a crankshaft.

2. The cylinder assembly according to claim 1, characterized in that: the end face of the first partition plate away from the first cylinder is connected with the end face of the second cylinder provided with the second partition plate, and the end face of the second partition plate away from the first cylinder is connected with the end face of the first cylinder provided with the first partition plate.

3. The cylinder assembly according to claim 1, characterized in that: the middle partition plate formed by the mutual engagement of the first partition plate and the second partition plate is a disc-shaped structure, and the middle hole is coaxially arranged on the middle partition plate.

4. The cylinder assembly according to claim 3, characterized in that: the first partition plate and the second partition plate are both arc-shaped structures, the central angle formed by the two arc-shaped ends of the first partition plate and the center thereof is greater than or equal to 90°, or the central angle formed by the two arc-shaped ends of the second partition plate and the center thereof is greater than or equal to 90°.

5. The cylinder assembly according to claim 3, characterized in that: the first partition plate is provided with a first arc-shaped hole, the second partition plate is provided with a second arc-shaped hole, and the first arc-shaped hole and the second arc-shaped hole together form the middle hole in a circular shape.

6. The cylinder assembly according to claim 3, characterized in that: the first partition plate and the second partition plate are both semi-circular structures.

7. The cylinder assembly according to claim 3, characterized in that: the two ports of the first partition plate in the circumferential direction are in step structure, the two ports of the second partition plate in the circumferential direction are in step structure, and the two ports of the first partition plate in the circumferential direction and the two ports of the second partition plate in the circumferential direction are respectively tightly combined together.

8. The cylinder assembly according to claim 3, characterized in that: the two ports of the first partition plate in the circumferential direction are in slope structure, the two ports of the second partition plate in the circumferential direction are in slope structure, and the two ports of the first partition plate in the circumferential direction and the two ports of the second partition plate in the circumferential direction are respectively tightly combined together.

9. A pump body structure, characterized in that: comprising the cylinder assembly according to any one of claims 1 to 8, further comprising a first bearing, a second bearing and a crankshaft, the first bearing and the second bearing are respectively arranged on the first cylinder and the second cylinder to shield the first cavity and the second cavity, and the crankshaft is arranged through the first bearing, the first cylinder, the second cylinder and the second bearing. ​ ​ ​ ​ ​ ​ ​ ​ ​ 10. A compressor characterized by: including the pump body structure as claimed in claim 9.

Images