WO2024008136A1

WO2024008136A1 - Power apparatus

Info

Publication number: WO2024008136A1
Application number: PCT/CN2023/106023
Authority: WO
Inventors: 傅珂珂; 李进
Original assignee: 浙江千机智能科技有限公司
Priority date: 2022-07-06
Filing date: 2023-07-06
Publication date: 2024-01-11
Also published as: CN217813791U

Abstract

A power apparatus (10). The power apparatus (10) comprises a reciprocating assembly (100) and a compression assembly (200). The compression assembly (200) comprises a compression cylinder (210) and a piston (220). The reciprocating assembly (100) comprises a power source (110), a power shaft (120) and a reciprocating member (130). The power source (110) drives the power shaft (120) to drive the piston (220) to reciprocate in the axial direction of the power shaft (120) by means of the reciprocating member (130). A first-stage piston body (221) is arranged in a first-stage compression cavity (211); a second-stage piston body (222) is arranged in a second-stage compression cavity (212); and when the piston (220) moves in a direction away from the reciprocating member (130), the air in the second-stage compression cavity (212) is compressed by means of the second-stage piston body (222) and is discharged by means of a second channel (214), and the air enters the first-stage compression cavity (211) by means of a first channel (213). When the piston (220) moves towards the reciprocating member (130), the first-stage piston body (221) compresses the air in the first-stage compression cavity (211) into the second-stage compression cavity (212), and accordingly the cycle is repeated. By means of the power appratus, the two-stage compression of air is achieved, and the compression efficiency is higher.

Description

Power plant

Technical field

The utility model relates to the technical field of compression structures, especially to power equipment.

Background technique

At present, most of the traditional power equipment such as pumps or compressors are driven by motors to reciprocate the piston to achieve medium suction and compression discharge. However, during the compression process of traditional air pumps or piston power equipment, within a reciprocating stroke, half of the stroke is used to suck in the medium, and the other half is used for compression and discharge, which results in low compression efficiency.

Utility model content

Based on this, it is necessary to provide a power equipment that can effectively improve compression efficiency to address the above problems.

A kind of power equipment. The power equipment includes a reciprocating component and a compression component. The reciprocating component includes a power source, a power shaft and a reciprocating part. The reciprocating part is in transmission cooperation with the power shaft. The power source is used to drive the The power shaft drives the reciprocating member to reciprocate along the axis direction of the power shaft; the compression assembly includes a compression cylinder and a piston, and a primary compression chamber and a secondary compression chamber are formed in the compression cylinder. The volume of the first-stage compression chamber is smaller than that of the first-stage compression chamber, and a first channel connected to the first-stage compression chamber and a second channel connected to the second-stage compression chamber are formed on the outer wall of the compression cylinder; The piston includes a primary plug body and a secondary plug body connected to the primary plug body. The primary plug body is disposed in the primary compression chamber, and the secondary plug body is disposed in the primary compression chamber. In the secondary compression chamber, the side of the primary plug body facing away from the secondary plug body is connected to the reciprocating part, and the reciprocating part can drive the first The first-level plug body and the second-level plug body move reciprocally synchronously.

In one embodiment, the compression cylinder includes an inlet piece, a cylinder body and a discharge piece, the first channel is formed on the inlet piece, the second channel is formed on the outlet piece, and the The inlet piece and the discharge piece are respectively installed on opposite ends of the cylinder body, and the secondary compression chamber is formed on the side of the cylinder body facing the discharge piece, and the cylinder body is close to the The primary compression chamber is formed in one end of the entry piece.

In one embodiment, the power equipment further includes an installation shell, which is installed on a side of the inlet piece facing away from the cylinder body, and between the installation shell and the inlet piece. Enclosing an installation cavity, the power shaft and the reciprocating part are both arranged in the installation cavity.

In one embodiment, the piston includes a connecting rod, one end of the connecting rod is connected to the primary plug body, and the other end passes through the inlet piece and is connected to the reciprocating piece.

In one embodiment, the primary plug body is in sealing contact with the inner wall of the primary compression chamber, the secondary plug body is in sealing contact with the inner wall of the secondary compression chamber, and the piston It also includes a communication tube, one end of the communication tube is connected to the primary plug body, and the other end is connected to the secondary plug body, so that the primary plug body faces away from the space of the secondary plug body. It is connected with the space of the secondary plug body facing away from the primary plug body.

In one embodiment, the power equipment further includes a transmission assembly, and the power source, the power shaft, the reciprocating member and the compression assembly are all disposed on the same side of the transmission assembly. The source is drivingly connected to the power shaft through the transmission assembly.

In one embodiment, the power shaft, the reciprocating member and the piston are arranged coaxially, and the power source is arranged parallel to the axis of the power shaft.

In one embodiment, the power equipment further includes a transmission assembly, the power source and the reciprocating member are respectively located on opposite sides of the transmission assembly, and the power source passes through the transmission assembly. The parts are transmission connected with the power shaft.

In one embodiment, the power shaft is provided with a reciprocating guide rail, the reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft, and the wave peaks and troughs of the curved guide rail are along the direction of the power shaft. The axes are arranged at intervals; the reciprocating part includes a moving body and a reciprocating body, the reciprocating body is sleeved on the power shaft, the moving body is located between the reciprocating body and the power shaft, and the moving body The guide is provided on the reciprocating guide rail and is limited to the reciprocating body. The moving body can drive the reciprocating body to guide and move on the reciprocating guide rail. The piston is connected to the reciprocating body.

In one embodiment, the power shaft is also provided with a balance guide rail that is spaced opposite to the reciprocating guide rail along the axis of the power shaft. The balance guide rail is a closed curved guide rail surrounding the axis of the power shaft, and the balance guide rail is The wave peaks and wave troughs of the balance guide rail are spaced apart along the axis of the power shaft; and the wave peaks of the balance guide rail are opposite to the wave troughs of the reciprocating guide rail along the axial direction, and the wave troughs of the balance guide rail are opposite to the wave troughs of the reciprocating guide rail along the axial direction. The wave crests are opposite; a balance body is provided on the balance guide rail, and the balance body and the moving body are arranged oppositely along the axis of the power shaft. When the power shaft rotates, the balance body and the moving body Move toward or away from each other.

In one embodiment, the reciprocating assembly further includes a connecting rod, one end of the power shaft is provided with a communication hole, one end of the connecting rod is inserted into the communication hole and is connected to the power shaft, and the other is One end is connected to the power source.

In one embodiment, the power equipment further includes an adapter, a transition channel is formed in the adapter, and the adapter is installed at the second channel of the compression cylinder, So that the second channel is connected with the switching channel.

In one embodiment, the power equipment is a compressor or a vacuum pump.

In one embodiment, the power equipment further includes an air storage bag, the air storage bag is connected to the second channel of the compression assembly, and the second channel is connected to the space inside the air storage bag. Connected.

When the above-mentioned power equipment is used as a compressor, the power source drives the power shaft to drive the reciprocating part to reciprocate along the axis of the power shaft, and further drives the piston to reciprocate along the axis of the power shaft. Since the primary plug body is arranged in the primary compression chamber and the secondary plug body is arranged in the secondary compression chamber, when the piston moves in the direction away from the reciprocating member, the secondary plug body compresses the gas medium in the secondary compression chamber to pass through. The second channel discharges, and the gas enters the first-stage compression chamber through the first channel. When the piston moves in the direction of the reciprocating member, the primary plug body compresses the gas in the primary compression chamber into the secondary compression chamber, and then reciprocates to achieve secondary compression of the gas. Furthermore, when the piston moves in the direction toward the reciprocating part, one-level compression and two-level air intake are achieved. When the piston moves in the direction away from the reciprocating part, two-level compression and one-level air intake are achieved, thereby not only realizing the gas Two-stage compression, with higher compression efficiency.

Description of the drawings

The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

In order to explain the technical solutions in the embodiments of the present utility model more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some implementations of the utility model. For example, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Furthermore, the drawings are not drawn to a 1:1 scale, and the relative sizes of various elements in the drawings are drawn by way of example only and not necessarily to true scale. In the attached picture:

Figure 1 is a schematic structural diagram of power equipment in an embodiment;

Figure 2 is a cross-sectional view of the power equipment shown in Figure 1;

Figure 3 is a cross-sectional view of the compression assembly in Figure 2;

Figure 4 is an exploded view of the compression assembly shown in Figure 3;

Figure 5 is a partial structural diagram of the reciprocating assembly in Figure 2;

Figure 6 is a schematic structural diagram of power equipment in another embodiment;

Figure 7 is a schematic structural diagram of power equipment in yet another embodiment.

Explanation of reference symbols:
10. Power equipment; 100. Reciprocating components; 110. Power source; 120. Power shaft; 122. Reciprocating groove; 124. Oil guide groove; 130. Reciprocating parts; 131. Moving body; 132. Reciprocating body; 133. Reciprocating hole; 134. Matching sleeve; 135. Ball; 136. Mounting hole; 137. Mounting plate; 138. Guide sleeve; 200. Compression component; 210. Compression cylinder; 211. Primary compression chamber; 212. Secondary compression chamber; 213 , first channel; 214, second channel; 220, piston; 221, primary plug body; 222, secondary plug body; 223, connecting pipe; 224, connecting rod; 230, entry piece; 240, cylinder body; 242 , air inlet hole; 250, discharge piece; 252, exhaust hole; 300, installation shell; 310, installation cavity; 320, guide rod; 400, transmission component; 500, adapter.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation modes of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to facilitate a thorough understanding of the present invention. However, the present utility model can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without violating the connotation of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed below. limit.

Referring to FIGS. 1 to 3 , the power equipment 10 in an embodiment of the present invention can at least improve the compression efficiency, thereby improving the working efficiency of the power equipment 10 .

Specifically, the power equipment 10 includes a reciprocating assembly 100 and a compression assembly 200. The reciprocating assembly 100 It includes a power source 110, a power shaft 120 and a reciprocating part 130. The reciprocating part 130 is in transmission cooperation with the power shaft 120. The power source 110 is used to drive the power shaft 120 to drive the reciprocating part 130 to reciprocate along the axis direction of the power shaft 120; the compression assembly 200 includes The compression cylinder 210 and the piston 220 have a primary compression chamber 211 and a secondary compression chamber 212 formed in the compression cylinder 210. The volume of the secondary compression chamber 212 is smaller than the primary compression chamber 211, and the outer wall of the compression cylinder 210 is formed with The first passage 213 communicates with the primary compression chamber 211 and the second passage 214 communicates with the secondary compression chamber 212; the piston 220 includes a primary plug body 221 and a secondary plug body 222 connected to the primary plug body. , the side of the primary plug body 221 facing away from the secondary plug body 222 is connected to the reciprocating member 130 , the primary plug body 221 is arranged in the primary compression chamber 211 , and the secondary plug body 222 is arranged in the secondary compression chamber 212 , the reciprocating member 130 can drive the primary plug body 221 and the secondary plug body 222 to reciprocate synchronously, so that the gas can be sucked into the primary compression chamber 211 from the first channel 213 and compressed into the secondary compression chamber 212, from the second Channel 214 discharges.

When the power equipment 10 is used as a compressor, the power source 110 drives the power shaft 120 to drive the reciprocating member 130 to reciprocate along the axis of the power shaft 120 , and further drives the piston 220 to reciprocate along the axis of the power shaft 120 . Since the primary plug body 221 is disposed in the primary compression chamber 211 and the secondary plug body 222 is disposed in the secondary compression chamber 212, when the piston 220 moves away from the reciprocating member 130, the secondary plug body 222 compresses the secondary compression chamber 212. The gas in the compression chamber 212 is discharged through the second channel 214, and the gas enters into the primary compression chamber 211 through the first channel 213. When the piston 220 moves in the direction toward the reciprocating member 130, the primary plug body 221 compresses the gas in the primary compression chamber 211 into the secondary compression chamber 212, and thus reciprocates to achieve secondary compression of the gas. Furthermore, when the piston 220 moves in the direction toward the reciprocating member 130, one-level compression and two-level air intake are achieved. When the piston 220 moves in the direction away from the reciprocating member 130, two-level compression and one-level air intake are achieved, and then It not only achieves two-stage compression of gas, but also achieves higher compression efficiency.

4 together, in one embodiment, the compression cylinder 210 includes an inlet 230, a cylinder body 240 and The discharge member 250 has the first channel 213 formed on the inlet member 230 and the second channel 214 formed on the discharge member 250. The inlet member 230 and the discharge member 250 are respectively installed on opposite ends of the cylinder body 240, and the cylinder A secondary compression chamber 212 is formed on one side of the body 240 facing the discharge member 250 , and a primary compression chamber 211 is formed on one end of the cylinder body 240 close to the inlet member 230 . It is convenient to form the first channel 213 by arranging the inlet part 230, to form the second channel 214 by arranging the discharge part 250, and to form the primary compression chamber 211 and the secondary compression chamber 212 by arranging the cylinder body 240.

Specifically, an air inlet hole 242 is formed on the side of the cylinder body 240 facing the inlet member 230 . A one-way air intake valve is provided at the air inlet hole 242 . The first channel 213 communicates with the primary compression chamber 211 through the air inlet hole 242 . The one-way air inlet valve ensures that when the primary plug body 221 moves in the direction away from the inlet member 230, the gas can enter the primary compression chamber 211 through the first channel 213 and the air inlet hole 242, and vice versa. closure.

Specifically, the discharge member 250 is provided with an exhaust hole 252 on one side facing the cylinder body 240. The second passage 214 is connected to the secondary compression chamber 212 through the exhaust hole 252. A one-way exhaust valve is provided at the exhaust hole 252. The one-way exhaust valve at the exhaust hole 252 ensures that when the secondary plug body 222 moves toward the discharge member 250, the one-way exhaust valve opens so that the gas in the secondary compression chamber 212 can pass through the exhaust hole 252. Enter the second channel 214 and discharge.

In one embodiment, the primary plug body 221 is in sealing contact with the inner wall of the primary compression chamber 211 , and the secondary plug body 222 is in sealing contact with the inner wall of the secondary compression chamber 212 . Sealing is ensured during the process of compressing gas through sealing contact, thereby ensuring the stability of gas compression.

In one embodiment, the piston 220 further includes a communication tube 223. One end of the communication tube 223 is connected to the primary plug body 221, and the other end is connected to the secondary plug body 222, so that the primary plug body 221 faces away from the secondary plug body. The space of 222 is connected with the space of the secondary plug body 222 facing away from the primary plug body 221. The connecting pipe 223 facilitates communication between the primary compression chamber 211 and the secondary compression chamber 212. When the piston 220 moves toward the entry piece 230, So that the gas in the primary compression chamber 211 enters the secondary compression chamber 212 through the communication pipe 223 . Specifically, the connecting pipe 223 is provided with a one-way valve. The one-way valve ensures that when the piston 220 moves toward the discharge member 250, the gas in the secondary compression chamber 212 will not enter the primary compression chamber 211 through the connecting pipe 223. .

In one embodiment, the piston 220 includes a connecting rod 224. One end of the connecting rod 224 is connected to the primary plug body 221, and the other end is connected to the reciprocating member 130. By arranging the connecting rod 224, it is convenient to connect the primary plug body 221 and the second plug body to the reciprocating member 130, so as to achieve the purpose of driving the piston 220 to reciprocate the compressed gas through the reciprocating member 130.

Referring to FIGS. 1 and 2 , in one embodiment, the power equipment 10 further includes an installation shell 300 . The installation shell 300 is installed on the side of the access piece 230 facing away from the cylinder body 240 , and is surrounded by a space between the installation shell 300 and the access piece 230 . The installation cavity 310 is formed, and the power shaft 120 and the reciprocating part 130 are both arranged in the installation cavity 310 . The installation cavity 310 surrounded by the installation shell 300 and the entry piece 230 is used to accommodate the power shaft 120 and the reciprocating part 130, ensuring the stability of the reciprocating movement of the reciprocating part 130 driven by the power shaft 120. In addition, the space on the side of the access piece 230 facing away from the cylinder body 240 is effectively utilized, thereby improving space utilization and conducive to compact and miniaturized design of the structure.

In this embodiment, lubricating oil can be filled into the installation cavity 310 so that the transmission cooperation between the power shaft 120 and the reciprocating part 130 can be lubricated by lubricating oil to ensure the stability of the transmission between the power shaft 120 and the reciprocating part 130 . Specifically, an oil meter may be provided on the installation shell 300 to facilitate observation of the lubricating oil in the installation cavity 310 through the oil meter.

Specifically, one end of the connecting rod 224 of the piston 220 is connected to the primary plug body 221 , and the other end passes through the entry piece 230 and is connected to the reciprocating piece 130 .

Referring also to FIG. 5 , in one embodiment, the reciprocating member 130 is sleeved on the power shaft 120 to ensure that the power source 110 drives the reciprocating member 130 to move reliably along the axis of the power shaft 120 .

Specifically, the power shaft 120 is provided with a reciprocating guide rail. The reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft 120, and the wave peaks and troughs of the curved guide rail are spaced along the axis of the power shaft 120; the reciprocating member 130 includes a moving body 131 and reciprocating body 132, the reciprocating body 132 is sleeved on the power shaft 120, the moving body 131 is located between the reciprocating body 132 and the power shaft 120, and the moving body 131 is guided and arranged on the reciprocating guide rail and is limited to the reciprocating body 132, The moving body 131 can drive the reciprocating body 132 to guide and move on the reciprocating guide rail, and the piston 220 is connected to the reciprocating body 132.

In this embodiment, the reciprocating guide rail is a closed curved groove surrounding the axis of the power shaft 120 , and the wave peaks and troughs of the curved groove are spaced along the axis of the power shaft 120 ; the moving body 131 is located between the reciprocating body 132 and the power shaft 120 in between, and the moving body 131 penetrates the reciprocating groove 122 and is limited on the reciprocating body 132. The moving body 131 can move in the reciprocating groove 122, and the piston 220 is connected to the reciprocating body 132.

When the power shaft 120 rotates, the movable body 131 can move in the reciprocating groove 122, so that the movable body 131 can move between the peaks and troughs of the curved groove, so as to realize the reciprocation of the movable body 131 along the axis direction of the power shaft 120. For the purpose of movement, the reciprocating body 132 drives the piston 220 to reciprocate along the axis direction of the power shaft 120 . The rotational motion of the power shaft 120 is converted into the linear motion of the reciprocating body 132 along the axis of the power shaft 120. There will be no yaw intersection problem of the crank structure or the eccentric drive structure, and the work stability is better.

In another embodiment, the reciprocating guide rail is a guide protrusion, and the guide protrusion is a closed strip-shaped curved protrusion surrounding the axis of the power shaft 120, and the peaks and troughs of the curved protrusion are spaced apart along the axis of the power shaft 120; moving The body 131 is disposed on the guide protrusion and can move along the length direction on the guide protrusion.

In one embodiment, there are at least two reciprocating guide rails, each reciprocating guide rail is spaced along the axis of the power shaft 120 , and at least one moving body 131 is provided on each reciprocating guide rail. By arranging at least two reciprocating guide rails, the stability of the movement of the piston 220 driven by the moving body 131 can be improved.

In another embodiment, the power shaft 120 is also provided with a reciprocating guide rail along the axis of the power shaft 120 . The balance guide rails are arranged oppositely. The balance guide rails are closed curved guide rails surrounding the axis of the power shaft 120, and the wave crests and troughs of the balance guide rails are arranged at intervals along the axis of the power shaft 120; and the wave crests of the balance guide rails are aligned with the axis along the axis direction. The wave troughs of the reciprocating guide rail are opposite to each other, and the wave troughs of the balance guide rail are opposite to the wave crests of the reciprocating guide rail along the axial direction. A balance body is provided on the balance guide rail. The balance body and the moving body 131 are arranged oppositely along the axis of the power shaft 120. When the power shaft 120 rotates, the balance body and the moving body 131 move toward or away from each other. By arranging the balance guide rail and the balance body, the two-way acceleration during the movement of the balance body and the moving body 131 can be offset, thereby reducing the vibration caused by acceleration.

Specifically, the balance guide rail has the same structure as the reciprocating guide rail, and the balance guide rail is symmetrically arranged along the circumference of the power shaft relative to the reciprocating guide rail. In this embodiment, the balance body and the moving body 131 have the same structure.

In this embodiment, the reciprocating body 132 is provided with a reciprocating hole 133 , and the power shaft 120 is inserted into the reciprocating hole 133 , so that the moving body 131 is located between the inner wall of the reciprocating body 132 and the power shaft 120 . Specifically, the connecting rod 224 of the piston 220 and the reciprocating body 132 are connected through screws from one side of the reciprocating hole 133 .

In this embodiment, the number of moving bodies 131 is at least two. Each moving body 131 is arranged at intervals around the axis of the power shaft 120 , and the power shaft 120 can drive each moving body 131 to move in the same direction. Specifically, there are two moving bodies 131 , and the two moving bodies 131 are symmetrically arranged around the axis of the power shaft 120 . When the power shaft 120 rotates, it can drive each moving body 131 to move in the same direction. The stability of the transmission can be further improved by at least two moving bodies 131 . In other embodiments, the number of moving bodies 131 may also be other numbers. Each moving body 131 is evenly arranged around the axis of the power shaft 120 to ensure the stability of the transmission force of the reciprocating body 132.

In one embodiment, the moving body 131 is a sphere, and the moving body 131 can roll in the reciprocating groove 122 . By arranging the moving body 131 as a sphere, the friction force of the moving body 131 when moving can be reduced.

In one embodiment, an oil guide groove 124 is formed on the inner wall of the reciprocating groove 122 . Lubricating oil can be provided in the oil guide groove 124, and then when the moving body 131 moves in the reciprocating groove 122, the lubricating oil can be used to further reduce friction. Rubbing resistance to ensure smooth transmission.

Specifically, the oil guide groove 124 is a closed curved groove surrounding the axis of the power shaft 120 . Since the oil guide groove 124 is disposed on the inner wall of the reciprocating groove 122, the groove shape of the oil guide groove 124 is consistent with the groove shape of the reciprocating groove 122, ensuring that there is lubricating oil wherever the moving body 131 moves into the reciprocating groove 122. .

In one embodiment, the reciprocating member 130 further includes a matching sleeve 134, which is sleeved on the moving body 131 and installed on the reciprocating body 132. Specifically, since the moving body 131 is a sphere, the moving body 131 can roll relative to the matching sleeve 134 . The matching sleeve 134 prevents the moving body 131 from directly rolling and rubbing with the reciprocating body 132 .

Further, a plurality of rolling balls 135 are provided between the moving body 131 and the inner wall of the mating sleeve 134 . In this embodiment, the plurality of balls 135 are in contact with the side of the moving body 131 facing away from the power shaft 120 . When the moving body 131 rolls relative to the matching sleeve 134, the plurality of balls 135 are used to further reduce the rolling friction, further improve the rolling smoothness of the moving body 131, and ensure the stability of the transmission.

In one embodiment, the inner wall of the reciprocating body 132 is provided with a mounting hole 136 connected with the reciprocating hole 133 , and the matching sleeve 134 is installed in the mounting hole 136 . Specifically, the mounting hole 136 penetrates the outer wall of the reciprocating body 132, and a mounting plate 137 is provided at one end of the matching sleeve 134. The matching sleeve 134 is inserted into the mounting hole 136, so that the mounting plate 137 contacts and is installed on the outer wall of the reciprocating body 132. superior. Specifically, the moving body 131 can pass through the mounting hole 136 . By the mounting plate 137 contacting and being installed on the outer wall of the reciprocating body 132, the moving body 131 and the matching sleeve 134 are assembled on the reciprocating body 132.

In one embodiment, the reciprocating assembly 100 further includes a connecting rod 140. One end of the power shaft 120 is provided with a communication hole. One end of the connecting rod 140 is inserted into the communication hole and connected to the power shaft 120, and the other end is connected to the power source. 110. The power shaft 120 and the power source 110 are connected through the connecting rod 140 to avoid integrally molding the connecting rod 140 onto the power shaft 120 and increasing the processing difficulty of the power shaft 120 .

In one embodiment, a guide rod 320 is provided in the installation cavity 310, and the reciprocating member 130 and the guide rod 320 guide To match, the guiding direction of the guide rod 320 to the reciprocating member 130 is the axis direction of the power shaft 120 , that is, the reciprocating movement direction of the piston 220 . Specifically, a guide sleeve 138 is formed on the outer wall of the reciprocating body 132 , and the guide rod 320 is inserted into the guide sleeve 138 .

In this embodiment, the number of guide bushes 138 is at least two. Each guide bush 138 is arranged on the reciprocating body 132 at intervals around the axis of the power shaft 120 . The number of guide rods is consistent with the number of guide bushes 138 . Each guide rod passes through a corresponding hole. Located in a guide sleeve 138. The guide sleeve 138 is disposed between the two matching sleeves 134 to improve the utilization of the space on the outer wall of the reciprocating body 132 .

Specifically, a linear bearing is provided between the guide sleeve 138 and the guide rod 320. The linear bearing facilitates improving the smoothness of the movement of the guide sleeve 138 relative to the guide rod 320.

Referring to FIGS. 1 and 2 , in one embodiment, the power equipment 10 further includes a transmission assembly 400 , and the power source 110 is transmission connected to the power shaft 120 through the transmission assembly 400 . By providing the transmission assembly 400, it is convenient to adjust the output speed of the power source 110 and drive the rotation of the power shaft 120 more reliably.

In this embodiment, the transmission assembly 400 includes a gear transmission group. In other embodiments, the transmission assembly 400 may also include other transmission structures such as a belt transmission group.

As shown in FIG. 6 , in one embodiment, the power source 110 , the power shaft 120 , the reciprocating member 130 and the compression assembly 200 are all disposed on the same side of the transmission assembly 400 . The power source 110 is transmission connected to the power shaft 120 through the transmission assembly 400 . The transmission assembly 400 facilitates driving the power output direction of the power source 110, so that the power source 110, the power shaft 120, the reciprocating member 130 and the compression assembly 200 are all arranged on the same side of the transmission assembly 400, which facilitates subsequent installation and use.

Specifically, the power shaft 120, the reciprocating member 130 and the piston 220 are coaxially arranged, and the axes of the power source 110 and the power shaft 120 are arranged in parallel.

As shown in FIG. 1 , in other embodiments, the power source 110 and the power shaft 120 may be located on opposite sides of the transmission assembly 400 , that is, the power source 110 and the power shaft 120 may be arranged on an axis.

Referring to Figures 2 and 7, in one embodiment, the power equipment 10 further includes an adapter 500. An adapter channel is formed in the adapter 500. The adapter 500 is installed at the second channel 214 of the compression cylinder 210. So that the second channel 214 is connected with the switching channel. The adapter 500 facilitates changing the position of the outlet of the second channel 214 and adjusting the exhaust position.

In one embodiment, an adapter 500 can also be provided at the first channel 213 to connect the first channel 213 with the adapter channel in the adapter 500 to facilitate changing the position of the entrance of the first channel 213 .

In one embodiment, the power equipment 10 further includes an air storage bag, and the air storage bag is connected to the second channel 214 of the compression assembly 200. The second channel 214 is connected to the space in the air storage bag. The compressed gas can be discharged into the air storage bag through the second channel 214, and due to the flexible nature of the air storage bag, the space occupied by the air storage bag can be effectively reduced when not in use, further benefiting the power equipment 10. Miniature design.

In this embodiment, the power equipment 10 in any of the above embodiments is a compressor to realize compression and discharge of gas.

In one embodiment, the power equipment 10 may also be a vacuum pump. In any of the above embodiments, the power equipment 10 is used for air inlet and exhaust passages, and for air inlet and exhaust passages to achieve the purpose of vacuum evacuation.

In another embodiment, the power device 10 may also be an air pump. In other embodiments, the power device 10 can also be used in other situations that require compression, pumping, or inflation.

The technical features of the above embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.

The above-mentioned embodiments only express several implementation modes of the present invention. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that, for For those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be determined by the appended claims.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" ", "radial direction", "circumferential direction", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply what is meant. Devices or components must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

In this utility model, unless otherwise expressly stipulated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements, unless otherwise Clear limits. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly stipulated and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in direct contact through an intermediate medium. indirect contact. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. The first characteristic is “Below”, “below” and “below” the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

It should be noted that when an element is referred to as being "mounted" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

Claims

A kind of power equipment, characterized in that the power equipment includes:

Reciprocating assembly, the reciprocating assembly includes a power source, a power shaft and a reciprocating part. The reciprocating part is transmission matched with the power shaft. The power source is used to drive the power shaft to drive the reciprocating part along the power shaft. reciprocating movement in the axis direction; and

Compression assembly, the compression assembly includes a compression cylinder and a piston, a primary compression chamber and a secondary compression chamber are formed in the compression cylinder, the volume of the secondary compression chamber is smaller than the primary compression chamber, and the A first channel connected to the primary compression chamber and a second channel connected to the secondary compression chamber are formed on the outer wall of the compression cylinder; the piston includes a primary plug body and a primary plug body. Connected secondary plug bodies, the primary plug body is arranged in the primary compression chamber, the secondary plug body is arranged in the secondary compression chamber, the primary plug body faces away from the One side of the secondary plug body is connected to the reciprocating part, and the reciprocating part can drive the primary plug body and the secondary plug body to reciprocate synchronously.
The power equipment according to claim 1, wherein the compression cylinder includes an inlet piece, a cylinder body and a discharge piece, the first channel is formed on the inlet piece, and the second channel is formed on the inlet piece. On the discharge piece, the inlet piece and the discharge piece are respectively installed on opposite ends of the cylinder body, and the secondary compression chamber is formed on the side of the cylinder body facing the discharge piece. , the first-stage compression chamber is formed in one end of the cylinder body close to the inlet piece.
The power equipment according to claim 2, further comprising an installation shell, the installation shell is installed on the side of the inlet piece facing away from the cylinder body, and the installation shell and the inlet piece are An installation cavity is enclosed between them, and the power shaft and the reciprocating part are both arranged in the installation cavity.
The power equipment according to claim 3, characterized in that the piston includes a connecting rod, one end of the connecting rod is connected to the first-level plug body, and the other end passes through the entry piece and is connected to the reciprocating rod. pieces.
The power equipment according to claim 1, characterized in that the first-level plug body and the first The inner walls of the first-stage compression chamber are in sealing contact, and the second-stage plug body is in sealing contact with the inner wall of the second-stage compression chamber. The piston also includes a communication tube, one end of the communication tube is connected to the first-stage compression chamber. The other end of the plug body is connected to the secondary plug body, so that the space of the primary plug body faces away from the secondary plug body and the space of the secondary plug body faces away from the primary plug body. Spatial connectivity.
The power equipment according to any one of claims 1 to 5, further comprising a transmission assembly, the power source, the power shaft, the reciprocating member and the compression assembly are all provided in the transmission assembly On the same side, the power source is drivingly connected to the power shaft through the transmission assembly.
The power equipment according to claim 6, characterized in that the power shaft, the reciprocating member and the piston are arranged coaxially, and the power source is arranged parallel to the axis of the power shaft.
The power equipment according to any one of claims 1 to 5, further comprising a transmission assembly, the power source and the reciprocating member are respectively located on opposite sides of the transmission assembly, and the power source The source is drivingly connected to the power shaft through the transmission assembly.
The power equipment according to any one of claims 1 to 5, characterized in that the power shaft is provided with a reciprocating guide rail, the reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft, and the curve The wave crests and troughs of the shaped guide rail are spaced along the axis of the power shaft; the reciprocating part includes a moving body and a reciprocating body, the reciprocating body is sleeved on the power shaft, and the moving body is located between the reciprocating body and the power shaft. between the power shafts, and the movable body guide is provided on the reciprocating guide rail and is limited to the reciprocating body, the movable body can drive the reciprocating body to guide and move on the reciprocating guide rail, the The piston is connected to the reciprocating body.
The power equipment according to claim 9, characterized in that the power shaft is further provided with a balance guide rail that is spaced opposite to the reciprocating guide rail along the axis of the power shaft, and the balance guide rail surrounds the axis of the power shaft. The curved guide rail is closed, and the wave crests and troughs of the balance guide rail are spaced apart along the axis of the power shaft; and the wave crests of the balance guide rail are in line with the waves of the reciprocating guide rail along the axis direction. The wave troughs of the balance guide rail are opposite to the wave crests of the reciprocating guide rail along the axis direction; a balance body is provided on the balance guide rail, and the balance body and the moving body are arranged oppositely along the axis of the power shaft, When the power shaft rotates, the balance body and the moving body move toward or away from each other.
The power equipment according to any one of claims 1 to 5, characterized in that the reciprocating assembly further includes a connecting rod, a communication hole is opened at one end of the power shaft, and one end of the connecting rod passes through the The communication hole is connected to the power shaft, and the other end is connected to the power source.
The power equipment according to any one of claims 1 to 5, further comprising an adapter, a transition channel is formed in the adapter, and the adapter is installed on the compression cylinder. At the second channel, the second channel is connected with the transfer channel.
The power equipment according to any one of claims 1 to 5, characterized in that the power equipment is a compressor or a vacuum pump.
The power equipment according to any one of claims 1 to 5, characterized in that the power equipment further includes an air storage bag, the air storage bag is connected to the second channel of the compression assembly, and the The second channel is connected with the space inside the air storage bag.