Piston air compressor

Abstract

The utility model relates to a compressor technical field especially relates to a piston type air compressor, include: first casing, transmission mechanism, driving part and second casing, transmission mechanism is embedded in first casing, and it forms a plurality of air cylinders between first casing and transmission mechanism, driving part is located the outside of first casing, and is connected with first casing, and the drive end of driving part is connected with transmission mechanism, and second casing is provided with air inlet channel and air outlet channel, and air inlet channel has one import end and a plurality of export ends, and the export end of air inlet channel is linked together with the import end of air cylinder, and air outlet channel has a plurality of import ends and one export end, and the import end of air outlet channel is linked together with the export end of air cylinder. The utility model discloses through the import end of one air inlet channel, the export end of one air outlet channel can simplify the mounting step of whole piston type air compressor, improves the installation efficiency of piston type air compressor, realizes the convenient installation of piston type air compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a piston air compressor. Background Technology

[0002] A reciprocating air compressor is a device that compresses gas through the reciprocating motion of a piston. It is widely used in industry, manufacturing, and construction, and is particularly suitable for scenarios with small-scale air demands and low pressure ranges. The specific working process of a reciprocating air compressor is as follows:

[0003] 1. Intake process: The electric motor drives the crankshaft to rotate, and the crankshaft drives the piston to move downward through the camshaft, which increases the cylinder volume, opens the intake valve, and allows air to enter the cylinder through the air filter;

[0004] 2. Compression process: The piston moves upward, the cylinder volume decreases, the air is compressed, and the pressure increases. When the air pressure reaches the set value, the exhaust valve opens.

[0005] 3. Exhaust process: Compressed air enters the air storage tank through the exhaust valve, exhaust pipe and check valve, completing one working cycle;

[0006] The crankshaft rotates continuously, and the piston reciprocates, achieving continuous compression.

[0007] Currently, reciprocating air compressors consist of multiple cylinders, each of which requires an intake pipe and an exhaust pipe to achieve intake, compression, and exhaust. However, the intake and exhaust pipes of each cylinder are independent of each other. This design makes the installation process of the intake and exhaust pipes cumbersome and affects the installation efficiency of the entire reciprocating air compressor. In addition, multiple intake and exhaust pipes are not conducive to the operation of the entire reciprocating air compressor. Utility Model Content

[0008] To address the shortcomings of the existing production technology, the applicant provides a piston air compressor. By improving the structure of the piston air compressor, multiple cylinders can share a single intake pipe and an exhaust pipe, thereby enabling convenient installation of the piston air compressor.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A piston-type air compressor includes: a first housing, a transmission mechanism, a drive member, and a second housing. The transmission mechanism is embedded in the first housing, and a plurality of cylinders are formed between the first housing and the transmission mechanism. The drive member is located outside the first housing and connected to the first housing. The drive end of the drive member is connected to the transmission mechanism. The drive member is used to drive the transmission mechanism to move, thereby changing the volume of the cylinders and thus realizing air compression. The second housing has an inlet passage and an outlet passage. The inlet passage has one inlet end and multiple outlet ends. The outlet end of the inlet passage is connected to the inlet end of the cylinders. The outlet passage has multiple inlet ends and one outlet end. The inlet end of the outlet passage is connected to the outlet end of the cylinders. The number of outlet ends of the inlet passage and the number of inlet ends of the outlet passage are equal to the number of cylinders.

[0011] Therefore, the entire reciprocating air compressor has only one inlet end of the intake channel and one outlet end of the exhaust channel. Compared with the existing installation method where each cylinder has its own independent intake and exhaust pipes, this method has a simpler structure and is easier to operate. The single inlet end of the intake channel and the single outlet end of the exhaust channel can simplify the installation steps of the entire reciprocating air compressor, thereby improving the installation efficiency and enabling convenient installation. In addition, when the entire reciprocating air compressor is in use, it only has one externally connected intake and exhaust pipes. By simplifying the number of externally connected pipes, the overall operating effect of the reciprocating air compressor is improved.

[0012] As a further improvement to the above technical solution: the second housing is located on the side of the first housing close to the driving member, the two sides of the driving member are respectively connected to the first housing and the driving member, and the driving end of the driving member is inserted into the second housing.

[0013] As a further improvement to the above technical solution: the intake air passage is an annular flow passage, and the outlet air passage is an annular flow passage. Thus, both the intake air passage and the outlet air passage are set to be annular, which facilitates the connection between multiple cylinders and the intake air passage and the outlet air passage. In this way, it is convenient for multiple cylinders to work together to intake air through one intake air passage and to exhaust air through one outlet air passage.

[0014] As a further improvement to the above technical solution: the inlet end of the air intake channel and the outlet end of the air outlet channel are arranged opposite to each other. Therefore, during the entire installation process of the reciprocating air compressor, the oppositely arranged inlet end of the air intake channel and the outlet end of the air outlet channel ensure that the installation of the intake pipe and the exhaust pipe are kept apart, thus preventing interference between their installation and facilitating their installation.

[0015] As a further improvement to the above technical solution: the transmission mechanism includes: a transmission part and two piston parts. The transmission part is connected to the driving end of the driving member, and the piston parts are connected to the transmission part. Each piston part forms two cylinders with the first housing. The driving member is used to drive the transmission part to rotate so that the piston parts reciprocate to change the volume of the cylinders, thereby realizing the air compression operation; wherein: the two piston parts are perpendicular to each other.

[0016] As a further improvement to the above technical solution: the transmission unit includes two crankshafts, a camshaft, and a synchronous shaft. The synchronous shaft passes through the crankshafts and the camshafts. The driving end of the driving component is connected to the synchronous shaft. The camshaft is located inside the two crankshafts. The piston is connected to the camshaft. A counterweight is mounted on the crankshaft. The two camshafts are arranged opposite each other. The eccentricity of the synchronous shaft is d1, the eccentricity of the camshaft is d2, and the reciprocating stroke of the piston is d3, where d1 = d2 and d3 = 4 * d2. Therefore, the counterweight reduces the vibration and noise generated during the operation of the reciprocating air compressor, thereby improving the service life of the entire reciprocating air compressor.

[0017] As a further improvement to the above technical solution: a third housing is provided on the outside of the first housing relative to the cylinder, the outlet end of the intake air passage is connected to the inlet end of the third housing, the inlet end of the outlet air passage is connected to the outlet end of the third housing, and valve plates are installed on the first housing and the third housing.

[0018] As a further improvement to the above technical solution: a first valve plate and a second valve plate are respectively embedded on both sides of the valve plate, and the cylinder is connected to the third housing through the first valve plate and the second valve plate. Thus, the first valve plate and the second valve plate enable the cylinder and the third housing to switch between intake, compression, and exhaust operations.

[0019] As a further improvement to the above technical solution: Multiple heat dissipation fins are provided on the side of the third housing away from the first housing, with gaps between adjacent heat dissipation fins. Thus, the heat dissipation fins can dissipate heat generated at the cylinder and third housing location throughout the operation of the reciprocating air compressor.

[0020] As a further improvement to the above technical solution, it also includes a cooling fan, which is installed on the side of the first housing away from the second housing. Thus, the cooling fan can dissipate the heat generated by the rotation of the transmission unit throughout the operation of the reciprocating air compressor.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model relates to a piston air compressor with only one inlet end of the inlet channel and one outlet end of the outlet channel. Compared with the existing installation method where each cylinder has its own independent inlet and exhaust pipe, this method has a simple structure and is easy to operate. The single inlet end of the inlet channel and the single outlet end of the outlet channel simplify the installation steps of the piston air compressor, thereby improving the installation efficiency and enabling convenient installation. In addition, during use, the piston air compressor only has one externally connected inlet and exhaust pipes. By simplifying the number of externally connected pipes, the overall operating effect of the piston air compressor is improved.

[0023] This utility model also has the following advantages:

[0024] 1. The inlet and outlet air passages of this utility model are both designed as annular, which facilitates the connection between multiple cylinders and the inlet and outlet air passages. In this way, multiple cylinders can work together to intake air through one inlet air passage and exhaust air through one outlet air passage.

[0025] 2. In the entire installation process of the piston air compressor, the inlet end of the air intake channel and the outlet end of the air outlet channel are set opposite to each other, so that the installation of the air intake pipe and the installation of the exhaust pipe are far apart. In this way, the installation of the air intake pipe and the exhaust pipe do not interfere with each other, which facilitates the installation of the air intake pipe and the exhaust pipe.

[0026] 3. This utility model can dissipate the heat generated at the cylinder and third housing position during the entire operation of the piston air compressor through heat dissipation fins; and can dissipate the heat generated by the rotation of the transmission part during the entire operation of the piston air compressor through cooling fan. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the reciprocating air compressor of this utility model.

[0028] Figure 2 This is an exploded view of the second shell of this utility model from a first perspective;

[0029] Figure 3 This is an exploded view of the second shell of this utility model from a second perspective;

[0030] Figure 4 This is a schematic diagram of the transmission mechanism of this utility model;

[0031] Figure 5 This is a left view of the transmission mechanism of this utility model;

[0032] Figure 6 This is an exploded view of the transmission part of this utility model;

[0033] Figure 7 This is an exploded view of the first housing, the third housing, and the valve plate of this utility model from a first perspective.

[0034] Figure 8 This is an exploded view of the first housing, the third housing, and the valve plate of this utility model from a second perspective.

[0035] Among them: 1. First shell;

[0036] 101. Third housing; 102. Valve plate; 103. First valve plate; 104. Second valve plate; 105. Heat dissipation fins;

[0037] 2. Transmission mechanism;

[0038] 201. Transmission unit; 202. Piston unit; 203. Crankshaft; 204. Camshaft; 205. Synchronizer shaft; 206. Counterweight;

[0039] 3. Driving components;

[0040] 4. Cylinder;

[0041] 5. Second shell;

[0042] 501. Inlet air passage; 502. Outlet air passage;

[0043] 6. Cooling fan. Detailed Implementation

[0044] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0045] like Figures 1 to 8The diagram shows the preferred embodiment of this utility model. The piston-type air compressor of this embodiment includes: a first housing 1, a transmission mechanism 2, a drive member 3, and a second housing 5. The transmission mechanism 2 is embedded in the first housing 1, and multiple cylinders 4 are formed between the first housing 1 and the transmission mechanism 2. The drive member 3 is located outside the first housing 1 and connected to it. The drive end of the drive member 3 is connected to the transmission mechanism 2. The drive member 3 drives the transmission mechanism 2 to move, thereby changing the volume of the cylinders 4 and thus achieving air compression. The second housing 5 has an inlet passage 501 and an outlet passage 502. The inlet passage 501 has one inlet end and multiple outlet ends, and the outlet end of the inlet passage 501 is connected to the inlet end of the cylinders 4. The outlet passage 502 has multiple inlet ends and one outlet end, and the inlet end of the outlet passage 502 is connected to the outlet end of the cylinders 4. The number of outlet ends of the inlet passage 501 and the number of inlet ends of the outlet passage 502 are equal to the number of cylinders 4. Therefore, the entire reciprocating air compressor has only one inlet end of the inlet channel 501 and one outlet end of the outlet channel 502. Compared with the existing installation method where each cylinder 4 has its own independent inlet and exhaust pipe, this method has a simple structure and is easy to operate. The inlet end of the inlet channel 501 and the outlet end of the outlet channel 502 can simplify the installation steps of the entire reciprocating air compressor, thereby improving the installation efficiency of the reciprocating air compressor and realizing convenient installation of the reciprocating air compressor. In addition, when the entire reciprocating air compressor is in use, there is only one externally connected inlet pipe and exhaust pipe. By simplifying the number of externally connected pipes of the entire reciprocating air compressor, the operating effect of the entire reciprocating air compressor is improved.

[0046] In other words, existing reciprocating air compressors have an independent intake pipe and an exhaust pipe for each cylinder 4. During installation, each cylinder 4 needs to be connected to the intake and exhaust pipes, requiring multiple operations. However, this application only has an inlet end of an intake channel 501 and an outlet end of an exhaust channel 502. During installation, only two operations are required. This design simplifies the installation steps of the entire reciprocating air compressor, improves the installation efficiency, and enables convenient installation of the reciprocating air compressor.

[0047] For example, drive component 3 uses a motor.

[0048] In this embodiment, the second housing 5 is located on the side of the first housing 1 near the driving member 3. The two sides of the driving member 3 are connected to the first housing 1 and the driving member 3 respectively, and the driving end of the driving member 3 is inserted into the second housing 5. The inlet channel 501 is an annular channel, and the outlet channel 502 is an annular channel. The inlet end of the inlet channel 501 and the outlet end of the outlet channel 502 are opposite to each other. Thus, the inlet channel 501 and the outlet channel 502 are both annular, which facilitates the connection between multiple cylinders 4 and the inlet channel 501 and the outlet channel 502. In this way, multiple cylinders 4 can work together to intake air through one inlet channel 501 and exhaust air through one outlet channel 502. During the installation of the piston air compressor, the inlet end of the inlet channel 501 and the outlet end of the outlet channel 502 are opposite to each other so that the installation of the intake pipe and the exhaust pipe are far apart. In this way, the installation of the intake pipe and the exhaust pipe do not interfere with each other, which facilitates the installation of the intake pipe and the exhaust pipe.

[0049] In this embodiment, the transmission mechanism 2 includes a transmission section 201 and two piston sections 202. The transmission section 201 is connected to the drive end of the drive member 3, and the piston sections 202 are connected to the transmission section 201. Each piston section 202 forms two cylinders 4 between itself and the first housing 1. The drive member 3 drives the transmission section 201 to rotate, causing the piston sections 202 to reciprocate, thereby changing the volume of the cylinders 4 and thus achieving air compression. The two piston sections 202 are perpendicular to each other. The transmission section 201 includes two crankshafts 203 and a camshaft. The crankshaft 204 and camshaft 205 are connected. The camshaft 205 passes through the crankshaft 203 and camshaft 204. The drive end of the drive component 3 is connected to the camshaft 205. The camshaft 204 is located inside the two crankshafts 203. The piston part 202 is connected to the camshaft 204. A counterweight 206 is installed on the crankshaft 203. The two camshafts 204 are arranged opposite each other. The eccentricity of the camshaft 205 is d1, the eccentricity of the camshaft 204 is d2, and the reciprocating stroke of the piston part 202 is d3. d1 = d2, d3 = 4 * d2. Therefore, the counterweight 206 can reduce the vibration and noise generated during the operation of the entire reciprocating air compressor, thereby improving the service life of the entire reciprocating air compressor.

[0050] Specifically, the eccentricity distance d1 of the synchronous shaft 205 refers to the distance d1 from the centerline of the synchronous shaft 205 to the centerline of the drive end of the drive component 3.

[0051] Specifically, the eccentricity distance d2 of the camshaft 204 refers to the distance d2 between the centerline of the camshaft 204 and the centerline of the synchronous shaft 205.

[0052] Specifically, the stroke d3 of the reciprocating motion of the piston 202 refers to the distance d3 that the piston 202 moves from the intake process to the compression process and the exhaust process.

[0053] It should be noted that: such as Figure 6 As shown, the camshaft 204 includes two cam portions, which are arranged opposite to each other (i.e., one cam is eccentric upward with an eccentricity of d2, and the other cam is eccentric downward with an eccentricity of d2). Thus, the distance between the axis of the upwardly eccentric cam portion and the axis of the drive member 3 is d1+d2 (i.e., 2*d1 or 2*d2), and the distance between the axis of the downwardly eccentric cam portion and the axis of the drive member 3 is |d1-d2| (i.e., 0).

[0054] It should be noted that the two cylinders 4 of each piston section 202 operate in opposite states. One cylinder 4 is in the intake process (i.e., the first valve plate 103 of the cylinder 4 is in the open state and the second valve plate 104 is in the closed state, and the air to be compressed passes through the intake passage 501 and the third housing 101 in sequence, and finally flows into the cylinder 4). The other cylinder 4 is in the compression and exhaust process (i.e., the first valve plate 103 of the cylinder 4 is in the closed state and the second valve plate 104 is in the open state, and the compressed air passes through the third housing 101 and the exhaust flow in sequence, and finally flows into the air storage tank).

[0055] In this embodiment, a third housing 101 is provided on the outer side of the first housing 1 relative to the cylinder 4. The outlet end of the inlet air passage 501 is connected to the inlet end of the third housing 101, and the inlet end of the outlet air passage 502 is connected to the outlet end of the third housing 101. A valve plate 102 is installed on the first housing 1 and the third housing 101. A first valve plate 103 and a second valve plate 104 are respectively embedded on both sides of the valve plate 102. The cylinder 4 is connected to the third housing 101 through the first valve plate 103 and the second valve plate 104. A plurality of heat dissipation fins 105 are provided on the side of the third housing 101 away from the first housing 1, and there is a gap between two adjacent heat dissipation fins 105. Thus, the first valve plate 103 and the second valve plate 104 are used to achieve the connection and closure between the cylinder 4 and the third housing 101, thereby enabling the entire reciprocating air compressor to switch between intake, compression and exhaust operations; the heat dissipation fins 105 can dissipate the heat generated at the positions of the cylinder 4 and the third housing 101 during the entire operation of the reciprocating air compressor.

[0056] In this embodiment, a cooling fan 6 is also included, which is installed on the side of the first housing 1 away from the second housing 5. Thus, the cooling fan 6 can dissipate the heat generated by the rotation of the transmission unit 201 throughout the operation of the reciprocating air compressor.

[0057] The working process of this utility model of a piston-type air compressor (the two piston sections 202 are respectively referred to as piston section A 202 and piston section B 202, the two cylinders 4 of piston section A 202 are referred to as cylinder A 4 and cylinder B 4, and the two cylinders 4 of piston section B 202 are referred to as cylinder C 4 and cylinder D 4) is as follows: First, the inlet end of the inlet air passage 501 is connected to the supply end of the required compressed air, and the outlet end of the outlet air passage 502 is connected to the collection end of the required compressed air (e.g., an air storage tank); finally, the drive unit 3 and the cooling fan 6 are started, and the drive unit 3 drives the transmission unit 201 to rotate, so that the two piston sections 202 reciprocate. During operation, cylinders A and B work alternately (i.e., cylinder A is in the intake process and cylinder B is in the compression and exhaust process, or cylinder A is in the compression and exhaust process and cylinder B is in the intake process), and cylinders C and D work alternately (i.e., cylinder C is in the intake process and cylinder D is in the compression and exhaust process, or cylinder C is in the compression and exhaust process and cylinder D is in the intake process). The compressed air flows into the air storage tank through the exhaust channel 502. The heat dissipation fins 105 and the cooling fan 6 on the third housing 101 can dissipate heat during the operation of the piston air compressor.

[0058] In summary, the present invention provides a piston air compressor with only one inlet end of the inlet channel 501 and one outlet end of the outlet channel 502. Compared with the existing installation method where each cylinder 4 has its own independent inlet and exhaust pipes, this method has a simpler structure and is easier to operate. The single inlet end of the inlet channel 501 and the single outlet end of the outlet channel 502 simplify the installation steps of the piston air compressor, thereby improving the installation efficiency and enabling convenient installation. Furthermore, during use, the piston air compressor has only one externally connected inlet and exhaust pipes, which simplifies the number of externally connected pipes and improves the overall operating performance of the piston air compressor.

[0059] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A piston-type air compressor, characterized in that, include: The system comprises a first housing (1), a transmission mechanism (2), and a drive member (3). The transmission mechanism (2) is embedded in the first housing (1), and a plurality of cylinders (4) are formed between the first housing (1) and the transmission mechanism (2). The drive member (3) is located outside the first housing (1) and is connected to the first housing (1). The drive end of the drive member (3) is connected to the transmission mechanism (2). The drive member (3) is used to drive the transmission mechanism (2) to move, thereby changing the volume of the cylinders (4) and thus realizing the air compression operation. The second housing (5) has an inlet air passage (501) and an outlet air passage (502). The inlet air passage (501) has one inlet end and multiple outlet ends. The outlet end of the inlet air passage (501) is connected to the inlet end of the cylinder (4). The outlet air passage (502) has multiple inlet ends and one outlet end. The inlet end of the outlet air passage (502) is connected to the outlet end of the cylinder (4). The number of outlet ends of the intake air passage (501) and the number of inlet ends of the exhaust air passage (502) are equal to the number of cylinders (4).

2. The reciprocating air compressor as described in claim 1, characterized in that: The second housing (5) is located on the side of the first housing (1) close to the driving member (3). The two sides of the driving member (3) are connected to the first housing (1) and the driving member (3) respectively. The driving end of the driving member (3) is inserted into the second housing (5).

3. The reciprocating air compressor as described in claim 1, characterized in that: The inlet air passage (501) is an annular passage, and the outlet air passage (502) is an annular passage.

4. The reciprocating air compressor as described in claim 1, characterized in that: The inlet end of the air intake channel (501) is positioned opposite to the outlet end of the air outlet channel (502).

5. The reciprocating air compressor as described in claim 1, characterized in that: The transmission mechanism (2) includes: The transmission part (201) and two piston parts (202) are connected to the driving end of the driving member (3) and the piston parts (202) are connected to the transmission part (201). Two cylinders (4) are formed between each piston part (202) and the first housing (1). The driving member (3) is used to drive the transmission part (201) to rotate so that the piston part (202) reciprocates to change the volume of the cylinder (4) and thus realize the air compression operation. Wherein: the two piston parts (202) are perpendicular to each other.

6. The piston air compressor as described in claim 5, characterized in that: The transmission unit (201) includes: Two crankshafts (203), a camshaft (204), and a synchronous shaft (205) are provided. The synchronous shaft (205) passes through the crankshafts (203) and the camshaft (204). The driving end of the drive member (3) is connected to the synchronous shaft (205). The camshaft (204) is located inside the two crankshafts (203). The piston part (202) is connected to the camshaft (204). A counterweight (206) is installed on the crankshaft (203). Wherein: the two camshafts (204) are arranged opposite to each other, the eccentricity of the synchronous shaft (205) is d1, the eccentricity of the camshaft (204) is d2, the reciprocating stroke of the piston (202) is d3, d1=d2, d3=4*d2.

7. The reciprocating air compressor as described in claim 1, characterized in that: A third housing (101) is provided on the outside of the first housing (1) relative to the cylinder (4). The outlet end of the air intake passage (501) is connected to the inlet end of the third housing (101), and the inlet end of the air outlet passage (502) is connected to the outlet end of the third housing (101). A valve plate (102) is installed on the first housing (1) and the third housing (101).

8. The reciprocating air compressor as described in claim 7, characterized in that: The valve plate (102) is provided with a first valve plate (103) and a second valve plate (104) on both sides respectively. The cylinder (4) is connected to the third housing (101) through the first valve plate (103) and the second valve plate (104).

9. The reciprocating air compressor as described in claim 7, characterized in that: The third housing (101) has a plurality of heat dissipation fins (105) on the side away from the first housing (1), and there is a gap between two adjacent heat dissipation fins (105).

10. The reciprocating air compressor as claimed in claim 1, characterized in that: Also includes: A cooling fan (6) is installed on the side of the first housing (1) away from the second housing (5).

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