Compressor pump body structure and compressor

Abstract

The present invention provides a compressor pump body structure and a compressor. The compressor pump body structure includes an upper cylinder head, a lower cylinder head, a cylinder, a crankshaft, a piston and an exhaust component. The upper cylinder head and the lower cylinder head are respectively arranged at the two ends of the cylinder to form a compression space. The crankshaft is connected to a motor for applying the rotational force of the motor to the compressor pump body structure to compress the refrigerant. The exhaust component includes an exhaust pipe and a transmission member. The cylinder is provided with a channel for installing the exhaust pipe. The inner side of the cylinder is provided with an air outlet, which is connected to the channel. The exhaust pipe is provided with an exhaust port. The transmission member is connected to the exhaust pipe and is used to drive the exhaust pipe to rotate in the channel to control the on-off state of the air outlet and the exhaust port. The present invention uses an exhaust component for exhaust, which avoids the problem of easy breakage of the valve plate and the generation of impact noise. In addition, the exhaust direction in the present invention is tangent to the closing direction of the air outlet, which reduces the impact of the exhaust pressure difference on the exhaust pipe and avoids the generation of impact noise.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a compressor pump body structure and a compressor. Background Art

[0002] The compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks in low-temperature and low-pressure refrigerant gas from the air intake port, compresses it by driving the piston through the operation of the motor, and then discharges high-temperature and high-pressure refrigerant gas to the exhaust port, providing power for the refrigeration cycle, thereby realizing the refrigeration cycle of compression, condensation (heat release), expansion, and evaporation (heat absorption).

[0003] In order to ensure the smooth intake and exhaust of the compressor, the exhaust structure of the current vertical rolling rotor compressor pump body structure usually adopts the form of upper exhaust, lower exhaust or mixed exhaust. The exhaust structure includes exhaust holes, valve plates and baffles. When the compressor is running, the valve plate is opened and closed by the exhaust pressure difference. Under normal circumstances, the number of times the valve plate is opened and closed is positively correlated with the speed of the crankshaft in the compressor. The higher the speed of the crankshaft, the more times the valve plate is opened and closed. Under the combined influence of the valve plate being constantly impacted by the airflow and constantly hitting the baffle, exhaust noise will be generated. Under long-term influence, the valve plate may also break, affecting the normal operation of the compressor. In addition, when the valve plate is assembled with the compressor, in order to ensure the sealing between the two, it is required to have high processing and assembly precision, which is strict and has high assembly costs. Summary of the invention

[0004] The purpose of the present invention is to provide a compressor pump body structure and a compressor to solve the problems in the prior art that the valve plate has many opening and closing times, is easy to break, and generates noise. The specific technical solution is as follows:

[0005] In a first aspect, the present invention provides a compressor pump body structure, comprising:

[0006] An upper cylinder cover, a lower cylinder cover and a cylinder, wherein the upper cylinder cover and the lower cylinder cover are respectively arranged at two ends of the cylinder to form a compression space for compressing refrigerant;

[0007] A crankshaft, comprising a major shaft portion, an eccentric portion and a minor shaft portion;

[0008] A piston is disposed at an eccentric portion of the crankshaft, the crankshaft being connected to a motor, and is used to apply the rotational force of the motor to the compressor pump structure through the piston to compress the refrigerant;

[0009] An exhaust component, the exhaust component includes an exhaust pipe and a transmission member, the cylinder is axially provided with a channel for installing the exhaust pipe, the exhaust pipe is clearance-matched with the channel and can rotate in the channel, an air outlet is provided on the inner side of the cylinder, the air outlet is communicated with the channel, an exhaust port corresponding to the air outlet is provided on the exhaust pipe, an exhaust channel communicating with the exhaust port and the outside of the cylinder is provided in the exhaust pipe, the transmission member is respectively connected to the crankshaft and the exhaust pipe, and the rotational force of the crankshaft is used to drive the exhaust pipe to rotate in the channel to control the on and off state of the air outlet and the exhaust port.

[0010] Optionally, one or more air outlets are provided on the inner side of the cylinder.

[0011] Optionally, the transmission member includes an eccentric disk, a rotating wheel, and a rocker arm, one end of the exhaust pipe is fixedly connected to one end of the rocker arm, the other end of the rocker arm is connected to the rotating wheel, the outer periphery of the rotating wheel is in contact with the outer periphery of the eccentric disk, the eccentric disk is connected to the crankshaft, the rotation of the crankshaft drives the eccentric disk to rotate, and the eccentric disk drives the exhaust pipe to rotate in the channel through the rotating wheel and the rocker arm.

[0012] Optionally, the exhaust pipe includes a first section and a second section connected in sequence, the upper cylinder head is provided with a first through hole, the lower cylinder head is provided with a second through hole, the first section is located in the first through hole and the channel, the second section is located in the second through hole, the exhaust port is arranged on the side wall of the first section, and at least the portion of the exhaust pipe from the exhaust port to the end of the first section facing away from the second section is a hollow structure, serving as the exhaust channel.

[0013] Optionally, the transmission member further includes a return spring, which is sleeved on the second section of the exhaust pipe and connected between the lower cylinder cover and the rocker arm.

[0014] Optionally, the outer diameter of the first section of the exhaust pipe is greater than the outer diameter of the second section of the exhaust pipe.

[0015] Optionally, the exhaust component further includes a limiting sleeve, wherein the limiting sleeve is sleeved between the second section of the exhaust pipe and the lower cylinder head, and two ends of the limiting sleeve are respectively abutted against the first section of the exhaust pipe and the return spring.

[0016] Optionally, the transmission member further includes a pin shaft, and the rocker arm is connected to the rotating wheel via the pin shaft.

[0017] Optionally, the eccentric disk is perforated, and the eccentric disk is assembled with the short shaft portion of the crankshaft through the perforated hole by interference fit.

[0018] In a second aspect, the present invention provides a compressor, comprising the compressor pump body structure as described above.

[0019] A compressor pump body structure and a compressor provided by the present invention have the following beneficial effects: the compressor pump body structure comprises an upper cylinder head, a lower cylinder head, a cylinder, a crankshaft, a piston and an exhaust component, the upper cylinder head and the lower cylinder head are respectively arranged at two ends of the cylinder to form a compression space for compressing refrigerant, the crankshaft is connected to a motor, which is used to apply the rotational force of the motor to the compressor pump body structure through the piston to compress the refrigerant, the exhaust component comprises an exhaust pipe and a transmission member, the cylinder is axially provided with a channel for installing the exhaust pipe, the exhaust pipe is gap-matched with the channel and can rotate in the channel, an air outlet is provided on the inner side of the cylinder, the air outlet is connected to the channel, an exhaust port opposite to the air outlet is provided on the exhaust pipe, and the transmission member is connected to the exhaust pipe and is used to drive the exhaust pipe to rotate in the channel to control the on-off state of the air outlet and the exhaust port. It can be seen that the compressor in the present invention adopts exhaust components for exhaust, replacing the original valve type exhaust structure, thereby avoiding the problem that the valve plate in the original valve type exhaust structure is easily broken due to the high opening and closing frequency and generates impact noise. In addition, the exhaust direction of the compressor in the present invention is tangent to the closing direction of the air outlet, which reduces the impact of the exhaust pressure difference on the exhaust pipe, weakens the degree of damage to the exhaust pipe, and avoids the generation of impact noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a compressor pump body structure provided in the prior art;

[0021] Figure 2 It is a structural schematic diagram of a valve plate type exhaust structure provided in the prior art;

[0022] Figure 3 It is a structural schematic diagram of a compressor pump body structure provided by one embodiment of the present invention;

[0023] Figure 4 yes Figure 3 A partial enlarged view of middle A;

[0024] Figure 5 It is a structural schematic diagram of an exhaust pipe in a compressor pump body structure provided by an embodiment of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the cylinder in the compressor pump body structure provided by one embodiment of the present invention;

[0026] Figure 7is another structural schematic diagram of the cylinder in the compressor pump body structure provided by one embodiment of the present invention;

[0027] Figure 8 It is another structural schematic diagram of the cylinder in the compressor pump body structure provided by one embodiment of the present invention;

[0028] Fig. 9 is a structural schematic diagram of an exhaust component in a compressor pump body structure provided by an embodiment of the present invention;

[0029] Fig.10 is an assembly diagram of the exhaust component in a compressor pump body structure provided by one embodiment of the present invention;

[0030] Among them, Figures 1 to 10 The reference numerals are described as follows:

[0031] 1-upper cylinder head; 2-lower cylinder head; 3-cylinder; 31-channel; 32-air outlet; 4-crankshaft; 5-piston; 6-valve plate exhaust structure; 61-baffle; 62-valve plate; 63-exhaust hole; 7-exhaust pipe; 71-first section; 72 second section; 73-exhaust port; 8-transmission member; 81-rocker; 82-mounting seat; 83-rotor; 84-eccentric disc; 85-pin shaft; 9-reset spring; 10-limit sleeve. DETAILED DESCRIPTION

[0032] The following is a further detailed description of a compressor pump body structure and a compressor proposed by the present invention in combination with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] As described in the background technology, please refer to Figure 1 and Figure 2In the prior art, the compressor pump body structure is mainly composed of an upper cylinder head 1, a cylinder 3, a crankshaft 4, a piston 5, and a lower cylinder head 2, and forms a cylinder cavity closed structure. A valve plate exhaust structure 6 is provided on the upper cylinder head and / or the lower cylinder head, and the valve plate exhaust structure includes a valve plate 62, a baffle 61 and an exhaust hole 63. In the initial state, the suction pressure inside the cylinder is in a low-pressure state, and the exhaust pressure outside the cylinder is in a higher-pressure state. At this time, the valve plate 62 is in a closed state due to the pressure difference between the inside and outside of the cylinder. When the compressor starts working, the motor drives the crankshaft 4 to rotate, and the crankshaft 4 drives the piston 5 to compress the refrigerant inside the cylinder. When the pressure inside the cylinder is greater than the exhaust pressure outside the cylinder, the valve plate 62 is impacted and bent under the action of the exhaust pressure difference, and the exhaust hole 63 opens, and the refrigerant is discharged from the exhaust hole 63. When the crankshaft 4 rotates to the initial position, the exhaust is completed, and the refrigerant inside the cylinder returns to the initial low-pressure state, while the outside of the cylinder is still in a higher pressure state. Under the action of the pressure difference between the inside and outside of the cylinder, the valve plate closes again, and the next suction and exhaust cycle begins again.

[0034] Since the exhaust direction of the exhaust hole is perpendicular to the valve plate 62, the gas has a large effect area on the valve plate 62, and the impact force is large. In addition, the opening and closing frequency of the valve plate 62 is very high, which will produce exhaust noise. Under long-term influence, the valve plate may also break, affecting the normal operation of the compressor. In addition, when the valve plate 62 is assembled with the compressor, in order to ensure the sealing between the two, high processing and assembly precision is required, which is strict and has high assembly cost.

[0035] To this end, the present invention provides a compressor pump body structure, see Figure 3 and Figure 4 The compressor pump body structure includes an upper cylinder head 1, a lower cylinder head 2, a cylinder 3, a crankshaft 4, a piston 5 and an exhaust component.

[0036] Specifically, the upper cylinder cover 1 and the lower cylinder cover 2 are respectively disposed at two ends of the cylinder 3 to form a compression space for compressing the refrigerant.

[0037] The crankshaft 4 includes a long shaft portion, an eccentric portion and a short shaft portion.

[0038] The piston 5 is disposed at the eccentric portion of the crankshaft 4 , and the crankshaft 4 is connected to a motor (not shown in the figure) for applying the rotational force of the motor to the compressor pump body structure through the piston 5 to compress the refrigerant.

[0039] See also Figure 7 and Fig. 9The exhaust component includes an exhaust pipe 7 and a transmission member 8. The cylinder 3 is axially provided with a channel 31 for installing the exhaust pipe 7. The exhaust pipe 7 is clearance-matched with the channel 31 and can rotate in the channel 31. An air outlet 32 ​​is provided on the inner side of the cylinder 3. The air outlet 32 ​​is communicated with the channel 31. An exhaust port 73 is provided on the exhaust pipe 7. An exhaust channel communicating with the exhaust port 73 and the outside of the cylinder 3 is provided in the exhaust pipe 7. The transmission member 8 is connected to the crankshaft 4 and the exhaust pipe 7. The rotational force of the crankshaft 4 is used to drive the exhaust pipe 7 to rotate in the channel 31 to control the on / off state of the air outlet 32 ​​and the exhaust port 73.

[0040] For details, please refer to Figure 6 , Figure 7 and Figure 8 The inner side of the cylinder is provided with one or more air outlets 32. Preferably, the inner side of the cylinder 3 is provided with one, two, or three air outlets 32. In addition, in this embodiment, the shape of the air outlet 32 ​​is not specifically limited, and can be circular or elliptical.

[0041] It should be noted that the exhaust port 73 provided on the exhaust pipe 7 and corresponding to the air outlet 32 ​​may include the following situations: first, the exhaust port 73 on the exhaust pipe 7 corresponds to the air outlet 32 ​​on the cylinder 3, for example, the cylinder 3 is provided with three air outlets 32, and the area of ​​each air outlet 32 ​​is a, then the exhaust pipe 7 is also provided with three exhaust ports 73, and the area of ​​each exhaust port 73 is also a, and the maximum overlapping area between the air outlet 32 ​​and the exhaust port 73 is 3a; second, the exhaust port 72 on the exhaust pipe 7 does not correspond to the air outlet 32 ​​on the cylinder 3, for example, the cylinder 3 is provided with three air outlets 32, and the area of ​​each air outlet 32 ​​is a, but the exhaust pipe 7 is only provided with one exhaust port 73, the area of ​​which is greater than 3a, and the maximum overlapping area between the air outlet 32 ​​and the exhaust port 73 is 3a.

[0042] Further, the exhaust pipe 7 includes a first section 71 and a second section 72 connected in sequence, the upper cylinder head 1 is provided with a first through hole, the lower cylinder head 2 is provided with a second through hole, the first section 71 is located in the first through hole and the channel 31, the second section 72 is located in the second through hole, the exhaust port 73 is provided on the side wall of the first section 71, at least the portion of the exhaust pipe 7 from the exhaust port 73 to the end of the first section 71 away from the second section 72 is a hollow structure, and as the exhaust channel, the portion of the exhaust pipe 7 from the exhaust port 73 to the second section 72 is a solid structure. In this way, when the exhaust pipe 7 is subjected to a finishing process, the problem of machining deformation caused by the exhaust pipe 7 being entirely hollow can be avoided, and in addition, the problem of exhaust gas backflow can be avoided.

[0043] Furthermore, the transmission member 8 includes an eccentric disc 84, a rotating wheel 83, a swing rod 81 and a mounting seat 82. The second section 72 of the exhaust pipe is connected to the mounting seat 82, and the mounting seat 82 is fixedly connected to one end of the swing rod 81. Specifically, the swing rod 81 is connected to the mounting seat 82 by a fixing member or is integrally processed and formed, and the other end of the swing rod 81 is connected to the rotating wheel 83. Specifically, the transmission member 8 also includes a pin 85, and the swing rod 81 is connected to the rotating wheel 83 through the pin 85. The outer periphery of the rotating wheel 83 contacts the outer periphery of the eccentric disk 84, and the eccentric disk 84 is installed on the short axis portion of the crankshaft 4. Specifically, the eccentric disk 84 has a hole in the center, and the eccentric disk 84 and the short axis portion of the crankshaft 4 are assembled by interference fit. The crankshaft 4 drives the eccentric disk 84 to rotate, and the eccentric disk 84 drives the exhaust pipe 7 to rotate in the channel 31 through the rotating wheel 83 and the rocker rod 81.

[0044] Furthermore, a return spring 9 is sleeved on the second section 72 of the exhaust pipe to facilitate the return of the exhaust pipe 7 . Specifically, the return spring 9 is connected between the lower cylinder cover 2 and the mounting seat 82 .

[0045] Furthermore, the outer diameter of the first section 71 of the exhaust pipe is greater than the outer diameter of the second section 72 of the exhaust pipe, and the outer diameter of the second section 72 of the exhaust pipe is smaller than the inner diameter of the second through hole on the lower cylinder head 2. Furthermore, the exhaust component 8 further includes a limiting sleeve 10, which is sleeved between the second section 72 of the exhaust pipe and the lower cylinder head 2, and the two ends of the limiting sleeve 10 are respectively in contact with the first section 71 of the exhaust pipe and the return spring 9.

[0046] Furthermore, the contour of the channel 31 is consistent with the outer shape of the first section 71 of the exhaust pipe. Accordingly, the upper cylinder head 1 is provided with a first through hole for the first section 71 of the exhaust pipe to pass through, and the contour of the first through hole is consistent with the outer shape of the first section 71 of the exhaust pipe, and the lower cylinder head 2 is provided with a second through hole for the limiting sleeve 10 to pass through, and the contour of the second through hole is consistent with the outer peripheral shape of the limiting sleeve 10. For example, in this embodiment, the limiting sleeve 10 is T-shaped, and the second through hole is also T-shaped, so as to ensure the airtightness of the compression space and will not affect the working performance of the compressor.

[0047] When assembling the exhaust pipe, please refer to Fig.10 First, the limiting sleeve 10 and the return spring 9 are mounted on the second section 72 of the exhaust pipe, and then the exhaust pipe 7 is passed through the lower cylinder head 2, the cylinder 3 and the upper cylinder head 1 in sequence, and then the second section 72 of the exhaust pipe is inserted into the mounting seat 82.

[0048] In actual application, the working principle of the compressor pump structure is as follows:

[0049] In the initial state, the suction pressure inside the cylinder is in a low-pressure state, and the runner 83 is close to the circumferential side of the eccentric disk 84 close to the rotation center (crankshaft). At this time, the exhaust port 73 on the exhaust pipe 7 is not opposite to the air outlet 32, and there is no overlapping part between the two. The exhaust port 32 is in a closed state. When the compressor starts to work, the motor drives the crankshaft 4 to rotate, and the crankshaft 4 drives the piston 5 to compress the refrigerant in the cylinder and drives the eccentric disk 84 to rotate at the same time. When the crankshaft 4 rotates an angle α in one cycle, the runner 83 gradually gets close to the circumferential side of the eccentric disk 84 away from the rotation center (crankshaft), and the exhaust pipe 7 also rotates accordingly. At this time, the exhaust port 73 on the exhaust pipe 7 It starts to communicate with the air outlet 32 ​​on the cylinder 3, the compressor starts to exhaust, and the crankshaft 4 continues to rotate. When the crankshaft 4 rotates another angle β in one cycle, the runner 83 is close to the circumferential side of the eccentric disk 84 farthest from the rotation center (crankshaft). At this time, the exhaust port 73 on the exhaust pipe 7 completely overlaps with the air outlet 32 ​​on the cylinder 3, and the exhaust cross-sectional area for compressor exhaust is the largest. The crankshaft 4 continues to rotate. After a period of time, under the action of the reset spring 9 and the crankshaft 4, the runner gradually resets, and the overlapping part of the exhaust port 73 on the exhaust pipe 7 and the exhaust port 32 on the cylinder 3 gradually decreases, and finally decreases to zero to form a closed compression space, and the refrigerant continues to be compressed, and the next intake and exhaust cycle is restarted.

[0050] It can be understood that the rotation center offset degree of the eccentric disk, the outlet area and the exhaust port area are fixed, and the compression exhaust ratio of the compressor is a constant. Conversely, if you want to change the compression exhaust ratio of the compressor, you only need to change the rotation center offset degree of the eccentric disk and / or the outlet area and / or the exhaust port area.

[0051] In addition, this embodiment also provides a compressor, which includes the compressor pump body structure as described above.

[0052] In summary, a compressor pump body structure and a compressor provided in the present invention have the following advantages: the compressor pump body structure includes an upper cylinder head, a lower cylinder head, a cylinder, a crankshaft, a piston and an exhaust component, the upper cylinder head and the lower cylinder head are respectively arranged at both ends of the cylinder to form a compression space for compressing refrigerant, the crankshaft is connected to a motor, which is used to apply the rotational force of the motor to the compressor pump body structure through the piston to compress the refrigerant, the exhaust component includes an exhaust pipe and a transmission member, the cylinder is axially provided with a channel for installing the exhaust pipe, the exhaust pipe is gap-matched with the channel and can rotate in the channel, an air outlet is provided on the inner side of the cylinder, the air outlet is connected to the channel, an exhaust port opposite to the air outlet is provided on the exhaust pipe, and the transmission member is connected to the exhaust pipe, which is used to drive the exhaust pipe to rotate in the channel to control the on-off state of the air outlet and the exhaust port. It can be seen that the compressor in the present invention adopts exhaust components for exhaust, replacing the original valve type exhaust structure, thereby avoiding the problem that the valve plate in the original valve type exhaust structure is easily broken due to the high opening and closing frequency and generates impact noise. In addition, the exhaust direction of the compressor in the present invention is tangent to the closing direction of the air outlet, which reduces the impact of the exhaust pressure difference on the exhaust pipe, weakens the degree of damage to the exhaust pipe, and avoids the generation of impact noise.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A compressor pump body structure, characterized in that: include: An upper cylinder cover, a lower cylinder cover and a cylinder, wherein the upper cylinder cover and the lower cylinder cover are respectively arranged at two ends of the cylinder to form a compression space for compressing refrigerant; A crankshaft, comprising a major shaft portion, an eccentric portion and a minor shaft portion; A piston is disposed at an eccentric portion of the crankshaft, the crankshaft being connected to a motor, and is used to apply the rotational force of the motor to the compressor pump structure through the piston to compress the refrigerant; An exhaust component, the exhaust component includes an exhaust pipe and a transmission member, the cylinder is axially provided with a channel for installing the exhaust pipe, the exhaust pipe is clearance-matched with the channel and can rotate in the channel, an air outlet is provided on the inner side of the cylinder, the air outlet is communicated with the channel, an exhaust port corresponding to the air outlet is provided on the exhaust pipe, an exhaust channel communicating with the exhaust port and the outside of the cylinder is provided in the exhaust pipe, the transmission member is respectively connected to the crankshaft and the exhaust pipe, and the rotational force of the crankshaft is used to drive the exhaust pipe to rotate in the channel to control the on and off state of the air outlet and the exhaust port.

2. The compressor pump body structure according to claim 1, characterized in that: One or more air outlets are arranged on the inner side of the cylinder.

3. The compressor pump body structure according to claim 1, characterized in that: The transmission component includes an eccentric disk, a rotating wheel, and a rocker arm. One end of the exhaust pipe is fixedly connected to one end of the rocker arm, and the other end of the rocker arm is connected to the rotating wheel. The outer periphery of the rotating wheel contacts the outer periphery of the eccentric disk. The eccentric disk is connected to the crankshaft. The rotation of the crankshaft drives the eccentric disk to rotate. The eccentric disk drives the exhaust pipe to rotate in the channel through the rotating wheel and the rocker arm.

4. The compressor pump body structure according to claim 3, characterized in that: The exhaust pipe includes a first section and a second section connected in sequence, the upper cylinder head is provided with a first through hole, the lower cylinder head is provided with a second through hole, the first section is located in the first through hole and the channel, the second section is located in the second through hole, the exhaust port is arranged on the side wall of the first section, and at least the portion of the exhaust pipe from the exhaust port to the end of the first section away from the second section is a hollow structure, serving as the exhaust channel.

5. The compressor pump body structure according to claim 4, characterized in that: The transmission member also includes a return spring, which is sleeved on the second section of the exhaust pipe and connected between the lower cylinder cover and the rocker arm.

6. The compressor pump body structure according to claim 5, characterized in that: The outer diameter of the first section of the exhaust pipe is greater than the outer diameter of the second section of the exhaust pipe.

7. The compressor pump body structure according to claim 6, characterized in that: The exhaust component further comprises a limiting sleeve, which is sleeved between the second section of the exhaust pipe and the lower cylinder cover, and two ends of the limiting sleeve are respectively in contact with the first section of the exhaust pipe and the return spring.

8. The compressor pump body structure according to claim 3, characterized in that: The transmission member also includes a pin shaft, and the swing arm is connected to the rotating wheel via the pin shaft.

9. The compressor pump body structure according to claim 3, characterized in that: The eccentric disk is perforated, and the eccentric disk is assembled with the short shaft portion of the crankshaft through the perforated hole in an interference fit manner.

10. A compressor, characterized in that: It comprises a compressor pump body structure as described in any one of claims 1-9.

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