Improved multi-cylinder air compressor

Abstract

The utility model discloses an improved multi-cylinder air compressor, which is characterized in that the bottom surface of a chassis is provided with a damping foot, the edge of the top surface of the chassis is provided with 3-5 supporting upright posts, the middle part of the top surface of the chassis is provided with a motor, a supporting seat is suspended right above the motor through the 3-5 supporting upright posts, and an eccentric shaft lever is formed by combining an upper section shaft lever, a middle section shaft lever and a lower section shaft lever; the middle section shaft rod is of a rectangular bent structure, the middle section of each advancing / retreating linkage rod is of a hollow annular structure, the second bearing is located in the annular structure, the advancing / retreating linkage rods are sequentially sleeved downwards from the upper section shaft rod through the second bearing and continue to be sequentially overlapped in the middle section shaft rod downwards, and the air guide cover plate is installed on the top edge of the supporting base through screws. And the upper end of the upper-section shaft rod upwards penetrates out of the shaft hole II of the air guide cover plate and then is fixedly sleeved with the shaft hole III of the air guide cylinder. The noise can be effectively reduced due to the specific structural characteristics of the noise reduction device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air compressor field relates to an improved multi-cylinder air compressor, including piston, cylinder barrel, motor, bearing. BACKGROUND

[0002] The existing air compressor has the problem of loud noise in use. SUMMARY

[0003] In order to solve the problems in the above background, the utility model provides an improved multi-cylinder air compressor that can effectively reduce noise.

[0004] In order to achieve the above purpose, the technical measures of the utility model are as follows: an improved multi-cylinder air compressor, including piston, cylinder barrel, motor, bearing, its characterized in that, still include chassis, damping foot, support column, support seat, eccentric shaft rod, 3~5 root in / out linkage rod, gas guide cover plate, gas guide cylinder, cover cylinder, the bottom surface of chassis is equipped with damping foot, the top surface edge of chassis is equipped with 3~5 root support column, the top surface middle part of chassis is equipped with motor, the shaft end of motor is upward, the bottom of support seat is installed in the top end of 3~5 root support column, support seat is suspended in the just above of motor through 3~5 root support column, the central part of support seat is provided with one axle hole one, the bottom rod end of eccentric shaft rod is downward and is connected with the shaft end of motor through coupling and realizes transmission.

[0005] The eccentric shaft rod is combined by the upper shaft rod, the middle shaft rod and the lower shaft rod, the middle shaft rod is in rectangular curved structure, the upper shaft rod and the lower shaft rod keep the same axis, the top end of the lower shaft rod is provided with a limit block, the connecting part of the eccentric shaft rod and the support seat is installed with bearing one, the support seat is hollow and the top surface is open, a plurality of locating blocks one are installed in the inner chamber of the support seat, the cylinder barrel is supported on the locating blocks one, the inner chamber side wall of the support seat is drilled with a horizontal gas guide hole corresponding to the position of the cylinder barrel, a vertical gas guide hole one is drilled on the top edge of the support seat above each horizontal gas guide hole position, and the vertical gas guide hole one and the horizontal gas guide hole one below are corresponding and keep communication.

[0006] The middle part of each in / out linkage rod is in hollow annular structure, bearing two is installed in the middle part of each in / out linkage rod, the in / out linkage rod is sequentially downward from the upper shaft rod and is sequentially overlapped in the middle shaft rod through bearing two, the in / out linkage rod at the bottom is above the limit block, the piston is installed at both rod ends of each in / out linkage rod, and each piston is provided with a cylinder barrel.

[0007] The central part of the air guide cover plate is provided with a shaft hole two, the top surface of the air guide cover plate is radially distributed with a plurality of air guide pipes, the bottom surface of the air guide cover plate is drilled with a vertical air guide hole two at the edge below each air guide pipe position, the vertical air guide hole two corresponds to and communicates with the air guide pipe above, the air guide cover plate is installed on the top edge of the support seat by screws, the vertical air guide hole two corresponds to and communicates with the vertical air guide hole one above and below;

[0008] The central part of the air guide cover plate is further integrally formed with a plurality of vertical air guide holes three, the vertical air guide hole three corresponds to and communicates with the air guide pipe, the number of the vertical air guide hole three, the air guide pipe, the vertical air guide hole two, the vertical air guide hole one and the horizontal air guide hole is the same and one-to-one correspondence;

[0009] The bottom surface of the air guide cover plate is further provided with a plurality of positioning blocks two, the number of the positioning block two is the same as that of the positioning block one installed in the support seat and one-to-one correspondence, the positioning block two and the corresponding positioning block one below jointly clamp a cylinder.

[0010] The central part of the air guide cylinder is integrally formed with a shaft hole three, the upper end of the upper shaft rod penetrates upward from the shaft hole two of the air guide cover plate and is tightly connected with the shaft hole three of the air guide cylinder, the bottom surface of the air guide cylinder is further integrally formed with an arc-shaped air inlet hole, the outer edge of the bottom surface of the air guide cylinder is integrally formed with an arc-shaped air outlet hole, and the arc-shaped air inlet hole and the arc-shaped air outlet hole are oppositely arranged;

[0011] The arc-shaped air inlet hole and the arc-shaped air outlet hole can communicate with the vertical air guide hole three on the air guide cover plate;

[0012] The corresponding horizontal air guide hole, vertical air guide hole one, vertical air guide hole two, air guide pipe, vertical air guide hole three, arc-shaped air inlet hole combination forms a gas input channel.

[0013] The connecting part of the upper shaft rod and the air guide cover plate is provided with a bearing three;

[0014] The top surface of the air guide cover plate is further provided with a cover cylinder, the cover cylinder is hollow and the top surface and the bottom surface are open, the cover cylinder surrounds the periphery of the air guide cylinder, the gap between the cover cylinder and the air guide cylinder serves as an air outlet chamber, the bottom end of the air outlet chamber communicates with the arc-shaped air outlet hole of the air guide cylinder and the vertical air guide hole three on the air guide cover plate.

[0015] Further, it further includes an isolation net, the isolation net is installed on the top surface of the cover cylinder, the isolation net can prevent sundries from entering the gas input channel.

[0016] Further, it further includes an air outlet pipe, a pipe hole is drilled in the side wall of the cover cylinder, the pipe hole is installed with an air outlet pipe, the air outlet pipe communicates with the air outlet chamber.

[0017] The corresponding transverse air guide hole, vertical air guide hole one, vertical air guide hole two, air guide pipe, vertical air guide hole three, arc-shaped air outlet hole and air outlet chamber are combined to form a gas output channel.

[0018] The working principle of the utility model is specifically as follows:

[0019] The motor drives the eccentric shaft rod and the air guide cylinder to rotate simultaneously.

[0020] When the eccentric shaft rod is in the rotating state, the advance / retreat linkage rods sleeved with the middle section shaft rod of the eccentric shaft rod perform reciprocating advance / retreat actions, and the pistons installed at the two rod ends of the advance / retreat linkage rods also perform reciprocating actions.

[0021] The piston at one rod end of the advance / retreat linkage rods performs the retreat air suction action, which causes the gas input channel corresponding to the piston to be in the open air intake state.

[0022] The piston at the other rod end of the advance / retreat linkage rods performs the advance air compression action, which causes the gas output channel corresponding to the piston to be in the open air outlet state.

[0023] The same piston performs the retreat air suction action in the cylinder, and then switches to the advance air compression action.

[0024] The special structural features of the utility model product can effectively reduce noise in the use process. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further explained in detail in combination with the drawings and specific embodiments

[0026] Figure 1 The utility model is a whole exploded structure of the utility model;

[0027] Figure 2The overall exploded structure of the utility model is shown in the elevation view from the top angle.

[0028] Figure 3 The overall exploded structure of the utility model is shown in the elevation view from the top angle.

[0029] Figure 4 The overall exploded structure of the utility model is shown in the elevation view from the top angle.

[0030] Figure 5 The utility model discloses a three-dimensional structure schematic diagram of the support base.

[0031] In the drawing: A - base plate, A1 - damping foot, A2 - support column, A3 - motor, B - support base, B1 - shaft hole one, B2 - horizontal air guide hole, B3 - vertical air guide hole one, B4 - positioning block one, C1 - upper section shaft rod, C2 - middle section shaft rod, C3 - lower section shaft rod, C31 - limiting block, D - in / out linkage rod, D1 - piston, D2 - cylinder, D3 - bearing two, E - air guide cover plate, E1 - shaft hole two, E2 - air guide pipe, E3 - vertical air guide hole two, E4 - vertical air guide hole three, E5 - positioning block two, F - air guide cylinder, G - cover cylinder, G1 - isolation net, G2 - air outlet pipe. Specific implementation

[0032] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The utility model discloses an improved multi-cylinder air compressor, and the embodiment adopts six-cylinder air compressor to be specifically explained, including piston, cylinder, motor, bearing, it is characterized in that, still include base plate A, damping foot A1, support column A2, support base B, eccentric shaft rod, three in / out linkage rod D, air guide cover plate E, air guide cylinder F, cover cylinder G, isolation net G1, air outlet pipe G2, the bottom surface mounting of base plate A has damping foot A1, the top surface edge mounting of base plate A has three support column A2, the top surface middle part of base plate A installs motor A3, and the shaft end of motor A3 is upward, and the bottom of support base B is installed to the top end of three support column A2, and support base B is suspended in the just above of motor A3 through three support column A2, and the central part of support base B is provided with one shaft hole one B1, and the bottom bar end of eccentric shaft rod is downward and is passed through shaft hole one B1 and is connected with the shaft end of motor A3 and realizes transmission connection through the shaft coupling.

[0033] As Figure 3 、 Figure 4 As shown, eccentric shaft rod is combined by upper section shaft rod C1, middle section shaft rod C2 and lower section shaft rod C3, and middle section shaft rod C2 is rectangularly curved structure, and upper section shaft rod C1 and lower section shaft rod C3 keep the same axis, and the top end of lower section shaft rod C3 is provided with limiting block C31, and the connecting part of eccentric shaft rod and support base B is provided with bearing one, as Figure 5As shown, the support base B is hollow and open at the top surface, and a plurality of positioning blocks B4 are installed in the inner cavity of the support base B, and the cylinder D2 is supported on the positioning blocks B4. Figure 5 As shown, the inner cavity side wall of the support base B is drilled with a plurality of transverse air guide holes B2 corresponding to the positions of the cylinder D2, and the height position of the transverse air guide hole B2 is consistent with the height of the corresponding cylinder axis, and a vertical air guide hole B3 is drilled on the top edge of the support base B above each transverse air guide hole B2, and the vertical air guide hole B3 corresponds to and communicates with the transverse air guide hole B2 directly below, and the number of transverse air guide holes B2 and vertical air guide holes B3 is six.

[0034] The middle segment of each advancing / retracting linkage rod D is hollow and annular, and a bearing B2 is installed in the middle segment of each advancing / retracting linkage rod D, and the advancing / retracting linkage rod D is sequentially and downwardly sleeved into the middle segment shaft C2 from the upper segment shaft C1 through the bearing B2, and the lowest advancing / retracting linkage rod is located above the limiting block C31, and a piston D1 is installed at both rod ends of each advancing / retracting linkage rod D, and each piston D1 is correspondingly provided with a cylinder D2, and the number of cylinders D2 is six; and a sealing washer is arranged at the connecting position of each cylinder D2 and the inner cavity side wall of the support base B.

[0035] The central part of the air guide cover plate E is provided with a shaft hole E1, and a plurality of air guide pipes E2 are radially distributed on the top surface of the air guide cover plate E, and a vertical air guide hole E3 is drilled on the bottom edge of the air guide cover plate below each air guide pipe E2, and the vertical air guide hole E3 corresponds to and communicates with the air guide pipe E2 directly above, and the number of vertical air guide holes E3 and air guide pipes E2 is six, and the air guide cover plate E is installed on the top edge of the support base B by screws, and the vertical air guide hole E3 and the vertical air guide hole B3 correspond to and communicate with each other;

[0036] A sealing washer is arranged between the bottom surface of the air guide cover plate E and the top edge of the support base B.

[0037] Six vertical air guide holes E4 are integrally formed in the middle position of the air guide cover plate E, and the vertical air guide holes E4 correspond to and communicate with the air guide pipes E2, and the number of vertical air guide holes E4, air guide pipes E2, vertical air guide holes E3, vertical air guide holes B3, and transverse air guide holes B2 is six and corresponds to each other.

[0038] A plurality of positioning blocks E5 are installed on the bottom surface of the air guide cover plate E, and the number of positioning blocks E5 is the same as and corresponds to the positioning blocks B4 installed in the support base B, and the positioning blocks E5 and the positioning blocks B4 directly below correspond to each other and clamp a cylinder D2.

[0039] The center of the air guide cylinder F is integrally formed with a shaft hole three, the upper end of the upper shaft C1 penetrates upward from the shaft hole two E1 of the air guide cover plate E and is fastened and connected with the shaft hole three of the air guide cylinder F through a key strip, the bottom surface of the air guide cylinder F is integrally formed with an arc-shaped air inlet hole, the outer edge of the bottom surface of the air guide cylinder F is integrally formed with an arc-shaped air outlet hole, and the arc-shaped air inlet hole and the arc-shaped air outlet hole are oppositely arranged;

[0040] The arc-shaped air inlet hole and the arc-shaped air outlet hole are in communication with the vertical air guide hole three E4 on the air guide cover plate E.

[0041] The corresponding horizontal air guide hole B2, vertical air guide hole one B3, vertical air guide hole two E3, air guide pipe E2, vertical air guide hole three E4, arc-shaped air inlet hole and arc-shaped air outlet hole form a gas input channel.

[0042] The connecting part of the upper shaft C1 and the air guide cover plate E is provided with a bearing three.

[0043] The top surface of the air guide cover plate E is further provided with a cover cylinder G, the cover cylinder G is hollow and the top surface and the bottom surface are both open, the cover cylinder G surrounds the periphery of the air guide cylinder F, the top edge of the cover cylinder G extends to the inner diameter direction until it completely matches the upper end of the side wall of the air guide cylinder F, the cover cylinder G and the air guide cylinder F maintain the same axis, and the gap between the cover cylinder G and the air guide cylinder F serves as an air outlet chamber, the bottom end of the air outlet chamber is in communication with the arc-shaped air outlet hole of the air guide cylinder F and the vertical air guide hole three E4 on the air guide cover plate E.

[0044] A sealing ring is installed at the connecting part of the top edge of the cover cylinder G and the upper end of the side wall of the air guide cylinder F.

[0045] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , it further comprises an isolation net G1 installed on the top surface of the cover cylinder G.

[0046] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , it further comprises an air outlet pipe G2, a pipe hole is drilled in the side wall of the cover cylinder G, and the pipe hole is installed with an air outlet pipe G2, and the air outlet pipe G2 is in communication with the air outlet chamber.

[0047] The corresponding horizontal air guide hole B2, vertical air guide hole one B3, vertical air guide hole two E3, air guide pipe E2, vertical air guide hole three E4, arc-shaped air outlet hole, air outlet chamber form a gas output channel.

[0048] The motor A3 drives the eccentric shaft rod and the air guide cylinder F to rotate simultaneously. When the air guide cylinder F is in the rotating state, the arc-shaped air inlet hole of the air guide cylinder F will sequentially pass the corresponding vertical air guide hole three, and at the same time, the arc-shaped air outlet hole of the air guide cylinder F will also sequentially pass the corresponding vertical air guide hole three.

[0049] When the eccentric shaft rod is in the rotating state, the advance / retreat linkage rod D sleeved with the middle section shaft rod C2 performs reciprocating advance / retreat action, and the piston D1 installed at both rod ends of the advance / retreat linkage rod D also performs reciprocating action. The piston D1 installed at one rod end of the advance / retreat linkage rod D performs backward suction action in the cylinder D2, and at this time, air enters the gas input channel and finally enters the cylinder D2. At the same time, the piston installed at the other rod end of the advance / retreat linkage rod D performs forward compression gas action in the cylinder, and at this time, the air in the cylinder is compressed and enters the air outlet pipe G2 through the gas output channel, and the air outlet pipe G2 delivers the compressed air to the target device.

Claims

1. Improved multi-cylinder air compressor comprising pistons, cylinders, electric motor, bearings, characterized in that, The chassis is provided with damping feet on the bottom surface, 3-5 support columns on the top surface edge, a motor on the top surface middle part, and a shaft end of the motor upward; the support seat is installed on the top end of the 3-5 support columns, and is suspended above the motor through the 3-5 support columns; the support seat is provided with a shaft hole one at the center part; the eccentric shaft rod is downwardly penetrated through the shaft hole one and is in transmission connection with the shaft end of the motor through a shaft coupling; The eccentric shaft rod is combined by an upper shaft rod, a middle shaft rod and a lower shaft rod; the middle shaft rod is in a rectangular curved structure; the upper shaft rod and the lower shaft rod keep the same axis; the top end of the lower shaft rod is provided with a limiting block; the support seat is hollow and has an open top surface; a plurality of limiting blocks one are installed in the inner chamber of the support seat; a cylinder is supported on the limiting blocks one; a plurality of lateral air guide holes are drilled in the inner chamber side wall of the support seat and correspond to the positions of the cylinders; a vertical air guide hole one is drilled in the top edge of the support seat above each lateral air guide hole position and corresponds to and keeps communication with the lateral air guide hole below; The middle part of each advance / retreat linkage rod is in a hollow ring structure; a bearing two is installed on the middle part of each advance / retreat linkage rod and is located in the ring structure; the advance / retreat linkage rod is sequentially downwardly sleeved on the upper shaft rod through the bearing two and is sequentially overlapped in the middle shaft rod; the lowermost advance / retreat linkage rod is located above the limiting block; a piston is installed on each of the two rod ends of each advance / retreat linkage rod; each piston is correspondingly provided with a cylinder; The center part of the air guide cover plate is provided with a shaft hole two; a plurality of air guide pipes are radially distributed on the top surface of the air guide cover plate; a vertical air guide hole two is drilled in the bottom surface edge of the air guide cover plate below each air guide pipe position and corresponds to and keeps communication with the air guide pipe above; the air guide cover plate is installed on the top edge of the support seat through screws; the vertical air guide hole two corresponds to and keeps communication with the vertical air guide hole one above and below; The middle part of the air guide cover plate is further integrally provided with a plurality of vertical air guide holes three which correspond to and keep communication with the air guide pipes; the vertical air guide hole three, the air guide pipe, the vertical air guide hole two, the vertical air guide hole one and the lateral air guide hole have the same number and correspond to each other one by one; A plurality of limiting blocks two are installed on the bottom surface of the air guide cover plate and have the same number and correspond to each other one by one with the limiting blocks one installed in the support seat; the limiting blocks two and the corresponding limiting blocks one below jointly hold a cylinder; The center part of the air guide cylinder is integrally provided with a shaft hole three; the upper end of the upper shaft rod is upwardly penetrated through the shaft hole two of the air guide cover plate and is tightly sleeved with the shaft hole three of the air guide cylinder; the bottom surface of the air guide cylinder is further integrally provided with an arc-shaped air inlet hole in the middle part and an arc-shaped air outlet hole on the outer edge; the arc-shaped air inlet hole and the arc-shaped air outlet hole are oppositely arranged; The arc-shaped air inlet hole and the arc-shaped air outlet hole can be in communication with the vertical air guide hole three on the air guide cover plate. The corresponding transverse air guide hole, vertical air guide hole one, vertical air guide hole two, air guide pipe, vertical air guide hole three, and arc-shaped air inlet hole form a gas input channel. The top surface of the air guide cover plate is provided with a cover cylinder. The cover cylinder is hollow and has an open top surface and a bottom surface. The cover cylinder surrounds the outer periphery of the air guide cylinder. The gap between the cover cylinder and the air guide cylinder serves as an air outlet chamber. The bottom end of the air outlet chamber is in communication with the arc-shaped air outlet hole of the air guide cylinder and the vertical air guide hole three on the air guide cover plate. The corresponding transverse air guide hole, vertical air guide hole one, vertical air guide hole two, air guide pipe, vertical air guide hole three, arc-shaped air outlet hole, and air outlet chamber form a gas output channel.

2. The improved multi-cylinder air compressor as claimed in claim 1, wherein, The motor drives the eccentric shaft rod and the air guide cylinder to rotate simultaneously. When the air guide cylinder is in a rotating state, the arc-shaped air inlet hole of the air guide cylinder will successively circumnavigate the corresponding vertical air guide hole three. At the same time, the arc-shaped air outlet hole of the air guide cylinder will also successively circumnavigate the corresponding vertical air guide hole three.

3. The improved multi-cylinder air compressor as claimed in claim 1 wherein, When the eccentric shaft rod is in a rotating state, the advance / retreat linkage rod sleeved on the middle section shaft rod of the eccentric shaft rod performs reciprocating advance / retreat actions. The pistons installed on both ends of the advance / retreat linkage rod also perform reciprocating actions. The piston installed on one end of the advance / retreat linkage rod performs a backward air suction action in the cylinder barrel. At this time, air enters the gas input channel and finally enters the cylinder barrel. At the same time, the piston installed on the other end of the advance / retreat linkage rod performs a forward gas compression action in the cylinder barrel. At this time, the air in the cylinder barrel is compressed and enters the air outlet pipe through the gas output channel.

4. The improved multi-cylinder air compressor as claimed in claim 1, wherein, The backward air suction action of the piston on one end of the advance / retreat linkage rod causes the corresponding gas input channel to be in an open air intake state. At the same time, the forward gas compression action of the piston on the other end of the advance / retreat linkage rod causes the corresponding gas output channel to be in an open air outlet state.

5. The improved multi-cylinder air compressor as claimed in claim 1 wherein, After the same piston completes a backward air suction action in the cylinder barrel, it switches to a forward gas compression action. These two actions are performed reciprocatingly.

6. The improved multi-cylinder air compressor as claimed in claim 1, wherein, A bearing one is installed at the connection part of the eccentric shaft rod and the support seat.

7. The improved multi-cylinder air compressor as claimed in claim 1 wherein, A bearing three is installed at the connection part of the upper section shaft rod and the air guide cover plate.

8. The improved multi-cylinder air compressor as claimed in claim 1, wherein, The top edge of the cover cylinder extends in the inward radial direction until it completely fits the upper end of the side wall of the air guide cylinder. The cover cylinder and the air guide cylinder maintain the same axis. A sealing ring is installed at the connection part of the top edge of the cover cylinder and the upper end of the side wall of the air guide cylinder.

9. The improved multi-cylinder air compressor as claimed in any one of claims 1 to 8, wherein, A separation net is also included. The separation net is installed on the top surface of the cover cylinder.

10. The improved multi-cylinder air compressor as claimed in any one of claims 1 to 8, wherein, An air outlet pipe is also included. A pipe hole is drilled in the side wall of the cover cylinder. The pipe hole is installed with an air outlet pipe. The air outlet pipe is in communication with the air outlet chamber.

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