阅读说明：本技术 一种新能源车用全无油空气压缩机 (Full-oilless air compressor for new energy vehicle ) 是由 陈冬霞 于 2021-11-09 设计创作，主要内容包括：本发明涉及一种空气压缩机,尤其涉及一种新能源车用全无油空气压缩机,包括有底座、储气罐、电机固定板、压缩腔体等；底座顶部固接有储气罐,底座上部固接有电机固定板,电机固定板位于储气罐上方,电机固定板顶部固接有压缩腔体。通过固定外壳内循环流通有冷却液,冷却液与压缩腔体进行换热,使得冷却液可以将压缩腔体上的热量带走,从而能够及时有效地给压缩腔体降温,同时该设备运作时产生的震动会使固定外壳内的冷却液翻滚,有利于提高换热效率。(The invention relates to an air compressor, in particular to a full oilless air compressor for a new energy vehicle, which comprises a base, an air storage tank, a motor fixing plate, a compression cavity and the like, wherein the air storage tank is arranged on the base; the base top rigid coupling has the gas holder, and base upper portion rigid coupling has the motor fixed plate, and the motor fixed plate is located the gas holder top, and motor fixed plate top rigid coupling has the compression cavity. Circulating current leads to there is the coolant liquid through fixed shell, and the coolant liquid carries out the heat transfer with the compression cavity for the coolant liquid can take away the heat on the compression cavity, thereby can in time effectively give the compression cavity cooling, and the vibrations that produce when this equipment functions simultaneously can make the coolant liquid in the fixed shell roll, are favorable to improving heat exchange efficiency.)

1. The utility model provides an automobile-used oil-free air compressor of new forms of energy, includes base (1), its characterized in that still includes gas holder (2), motor fixed plate (3), compression cavity (4), drive assembly (5), crank air compression subassembly (6) and air input increase subassembly (7): the top of the base (1) is fixedly connected with the gas storage tank (2); the motor fixing plate (3) is fixedly connected to the upper portion of the base (1), and the motor fixing plate (3) is located above the air storage tank (2); the compression cavity (4) is fixedly connected to the top of the motor fixing plate (3); the top of the motor fixing plate (3) is provided with a driving component (5); the crank air compression assembly (6) is arranged in the compression cavity (4), and the crank air compression assembly (6) is used for compressing air; the air inlet quantity increasing assembly (7) is arranged on the crank air compression assembly (6), and the air inlet quantity increasing assembly (7) is used for increasing the air inlet quantity.

2. The oil-free air compressor for the new energy vehicle is characterized in that the driving assembly (5) comprises a power motor (51), a small belt pulley (52), a rotating shaft (53), a large belt pulley (54) and a transmission belt (55), the power motor (51) is fixedly connected to the top of the motor fixing plate (3), the small belt pulley (52) is fixedly connected to one end of an output shaft of the power motor (51), the rotating shaft (53) is rotatably connected to the compression cavity (4), the large belt pulley (54) is fixedly connected to one end, away from the compression cavity (4), of the rotating shaft (53), and the transmission belt (55) is wound between the large belt pulley (54) and the small belt pulley (52).

3. The oil-free air compressor for the new energy vehicle is characterized in that a crank air compression assembly (6) comprises a fixed crank (61), a compression handle (62), a piston ring (63), a top cover cylinder (64), a fixed rod (65), an exhaust plug (66), a compression spring (67), a guide rod (68), an air suction plug (69), a return spring (610) and an exhaust pipe (611), wherein the fixed crank (61) is fixedly connected to one end, away from a large belt wheel (54), of a rotating shaft (53), the fixed crank (61) is located inside a compression cavity (4), the compression handle (62) is rotatably connected to the fixed crank (61), the piston ring (63) is movably connected to the upper portion of the compression handle (62), the piston ring (63) is in sliding fit with the compression cavity (4), the top cover cylinder (64) is fixedly connected to the upper portion of the compression cavity (4), the fixed link (65) is connected to top lid section of thick bamboo (64) below rigid coupling, fixed link (65) lower part slidingtype is connected with core vent (66), core vent (66) and compression cavity (4) contact, be connected with compression spring (67) between core vent (66) and top lid section of thick bamboo (64), top lid section of thick bamboo (64) below rigid coupling has guide bar (68), compression cavity (4) are passed in guide bar (68), guide bar (68) lower part slidingtype is connected with inhales stopper (69), it is connected with reset spring (610) to inhale between stopper (69) and top lid section of thick bamboo (64), it has blast pipe (611) to put through jointly between top lid section of thick bamboo (64) and gas holder (2).

4. The oil-free air compressor for the new energy vehicle as claimed in claim 3, wherein the air intake increasing assembly (7) comprises a transmission convex disc (71), a fixed block (72), a transmission shaft (73), a small fixed transmission disc (74), a fixed air intake casing (75), a fixed filter plate (76), a small rotating shaft (77), fan blades (78), a transmission shaft (79), a bevel gear (710) and a universal coupling (711), the transmission convex disc (71) is fixedly connected to the rotating shaft (53), the fixed block (72) is fixedly connected to the outside of the compression cavity (4), the transmission shaft (73) is rotatably connected to the fixed block (72), the small fixed transmission disc (74) is fixedly connected to the lower portion of the transmission shaft (73), the fixed air intake casing (75) is communicated to one side of the top cover cylinder (64) far from the exhaust pipe (611), and the fixed filter plate (76) is fixedly connected to the fixed air intake casing (75), fixed casing (75) the inside rotary type of admitting air is connected with little pivot (77), the rigid coupling has flabellum (78) on little pivot (77), fixed casing (75) the lower part rotary type of admitting air is connected with transmission axle (79), transmission axle (79) pass fixed casing (75) of admitting air, transmission axle (79) upper portion rigid coupling has bevel gear (710), the same rigid coupling of flabellum (78) one end is kept away from in little pivot (77) has bevel gear (710), two bevel gear (710) meshing, be connected with universal joint (711) through the universal joint jointly between transmission axle (79) and transmission shaft (73).

5. An oil-free air compressor for new energy vehicles as claimed in claim 4, wherein the fixed filter plate (76) is opened with a plurality of small holes for filtering the air drawn into the fixed air intake housing (75).

6. The oil-free air compressor for the new energy vehicle is characterized by further comprising a cooling liquid heat exchange noise reduction assembly (8), wherein the cooling liquid heat exchange noise reduction assembly (8) is arranged on the compression cavity (4), the cooling liquid heat exchange noise reduction assembly (8) comprises a fixed shell (81), an input pipe (82) and an output pipe (83), the fixed shell (81) is fixedly connected to the outside of the compression cavity (4), the input pipe (82) is communicated with the lower portion of the fixed shell (81), and the output pipe (83) is communicated with the upper portion of the fixed shell (81).

7. The oil-free air compressor for the new energy vehicle is characterized by further comprising an extrusion valve opening assembly (9), wherein the extrusion valve opening assembly (9) is arranged on the exhaust plug (66), the extrusion valve opening assembly (9) comprises a limiting seat (91), a fixed extending piece (92) and an extrusion rod (93), a pair of limiting seats (91) is fixedly connected to the inner top of the top cover cylinder (64), the fixed extending piece (92) is fixedly connected to the exhaust plug (66), the extrusion rod (93) is fixedly connected to the lower portion of the fixed extending piece (92), and the extrusion rod (93) penetrates through the compression cavity (4).

8. The oil-free air compressor for the new energy vehicle is characterized by further comprising a plug body locking assembly (10), wherein the plug body locking assembly (10) is arranged on the compression cavity (4), the plug body locking assembly (10) comprises a fixed round rod (101), a sliding lock rod (102), an extrusion spring (103), a fixed push rod (104) and a sliding convex rod (105), a pair of fixed round rods (101) is fixedly connected to the upper portion of the compression cavity (4), the sliding lock rod (102) is connected between the two fixed round rods (101) in a sliding mode, the sliding lock rod (102) is clamped into a clamping groove of the extrusion rod (93), a pair of extrusion springs (103) is connected between the sliding lock rod (102) and the compression cavity (4), the fixed push rod (104) is fixedly connected to the top of the sliding lock rod (102), the sliding convex rod (105) is connected to the upper portion of the compression cavity (4) in a sliding mode, the sliding cam (105) is in contact with the fixed push rod (104).

9. The oil-free air compressor for the new energy vehicle as claimed in claim 1, further comprising a belt protecting sleeve (11), wherein the belt protecting sleeve (11) is connected to the motor fixing plate (3) through a bolt.

Technical Field

The invention relates to an air compressor, in particular to a full oil-free air compressor for a new energy vehicle.

Background

The air compressor is a device for compressing gas, the air compressor is similar to a water pump in structure, most of the air compressors are of reciprocating pistons type, the development of the air compressor is rapid in recent years, meanwhile, the new energy automobile is rapidly developed due to the advantages of zero pollution, energy conservation and high efficiency, and the air compressor on the new energy automobile is mainly used for increasing the braking force through air pressure assistance.

The air compressors on the new energy automobile are various, most of the air compressors are oil injection sliding vane compressors, oil piston machines, oil-free scroll machines and common oil-free piston machines, and the oil injection sliding vane compressors have the problem of oil leakage; the oil piston machine has large vibration noise and has the problem of oil leakage; the oil-free scroll machine has poor reliability; ordinary oil-free piston machine vibrations noise is big, consequently, the big problem of noise all exists to the overwhelming majority air compressor of current, and at the in-process of air compressor operation, all can produce a large amount of heats, if not cool down effectively, can influence air compressor's normal operating, its life also can reduce, the elasticity of the in-process spring of current air compressor in long-term operation simultaneously can weaken, lead to having its unmatched problem of atmospheric pressure with equipment inside, the too strong or too weak influence that can cause not good, the too weak can cause the air compression quality not up to standard, the too strong can lead to the valve to be difficult to open.

Therefore, the invention provides the oil-free air compressor for the new energy vehicle, which can efficiently perform heat exchange and noise reduction, can avoid the problem of weakening of spring force and can effectively ensure the air suction quantity, and is necessary to solve the problems that the existing air compressor in the background art has high noise, generates a large amount of heat during operation and weakens the spring force due to long-term work.

Disclosure of Invention

The invention aims to provide an all-oil-free air compressor for a new energy vehicle, which comprises a base, an air storage tank, a motor fixing plate, a compression cavity, a driving assembly, a crank air compression assembly and an air inflow increasing assembly, wherein the air storage tank comprises a gas storage tank body, a motor fixing plate, a compression cavity, a driving assembly, a crank air compression assembly and an air inflow increasing assembly, and the crank air compression assembly comprises: the top of the base is fixedly connected with an air storage tank; the upper part of the base is fixedly connected with a motor fixing plate which is positioned above the gas storage tank; the compression cavity is fixedly connected with the top of the motor fixing plate; the top of the motor fixing plate is provided with a driving assembly; the crank air compression assembly is arranged in the compression cavity and used for compressing air; the crank air compression assembly is provided with an air inlet amount increasing assembly, and the air inlet amount increasing assembly is used for increasing the air inlet amount.

Furthermore, the driving assembly comprises a power motor, a small belt wheel, a rotating shaft, a large belt wheel and a transmission belt, the power motor is fixedly connected to the top of the motor fixing plate, the small belt wheel is fixedly connected to one end of an output shaft of the power motor, the rotating shaft is rotatably connected to the compression cavity, the large belt wheel is fixedly connected to one end, away from the compression cavity, of the rotating shaft, and the transmission belt is wound between the large belt wheel and the small belt wheel.

Further, the crank air compression assembly comprises a fixed crank, a compression handle, a piston ring, a top cover cylinder, a fixed rod, an exhaust plug, a compression spring, a guide rod, an air suction plug, a reset spring and an exhaust pipe, wherein one end of the rotating shaft, which is far away from the large belt wheel, is fixedly connected with the fixed crank, the fixed crank is positioned in the compression cavity, the fixed crank is rotatably connected with the compression handle, the upper part of the compression handle is movably connected with the piston ring, the piston ring is in sliding fit with the compression cavity, the upper part of the compression cavity is fixedly connected with the top cover cylinder, the lower part of the top cover cylinder is fixedly connected with the fixed rod, the lower part of the fixed rod is slidably connected with the exhaust plug, the exhaust plug is contacted with the compression cavity, the compression spring is connected between the exhaust plug and the top cover cylinder, the guide rod is fixedly connected with the lower part of the top cover cylinder, the guide rod passes through the compression cavity, the lower part of the guide rod is slidably connected with the air suction plug, and the reset spring is connected between the air suction plug and the top cover cylinder, an exhaust pipe is communicated between the top cover cylinder and the gas storage tank.

Furthermore, the air input increasing component comprises a transmission convex disc, a fixed block, a transmission shaft, a fixed small transmission disc and a fixed air inlet shell, fixed filter, little pivot, the flabellum, the transmission axle, bevel gear and universal joint, the rigid coupling has the transmission flange on the rotation axis, the outside rigid coupling of compression cavity has the fixed block, the rotation type is connected with the transmission shaft on the fixed block, transmission shaft lower part rigid coupling has fixed little transmission disc, the top cover section of thick bamboo is kept away from blast pipe one side and is switched on and has the fixed casing that admits air, the rigid coupling has fixed filter on the fixed casing that admits air, the fixed inside rotary type of the casing that admits air is connected with little pivot, the rigid coupling has the flabellum in the little pivot, the fixed casing lower part rotary type that admits air is connected with the transmission axle, the transmission axle passes the fixed casing that admits air, transmission axle upper portion rigid coupling has bevel gear, the same rigid coupling of flabellum one end is kept away from in the little pivot has bevel gear, two bevel gear meshing, be connected with universal joint jointly between transmission axle and the transmission shaft.

Furthermore, the fixed filter plate is provided with a plurality of small holes for filtering the air pumped into the fixed air inlet shell.

Furthermore, the cooling liquid heat exchange noise reduction assembly is arranged on the compression cavity and comprises a fixed shell, an input pipe and an output pipe, the fixed shell is fixedly connected to the outside of the compression cavity, the input pipe is connected to the lower portion of the fixed shell, and the output pipe is connected to the upper portion of the fixed shell.

Further, still including extrusion valve opening subassembly, extrusion valve opening subassembly is located on the exhaust plug, and extrusion valve opening subassembly is including restriction seat, fixed extension and extrusion rod, and the top rigid coupling has a pair of restriction seat in the top lid section of thick bamboo, and the rigid coupling has fixed extension on the exhaust plug, and the rigid coupling has the extrusion rod below the fixed extension, and the extrusion rod passes the compression cavity.

Further, still including cock body locking subassembly, on the compression cavity was located to cock body locking subassembly, cock body locking subassembly was including fixed round bar, the slip locking lever, the extrusion spring, fixed push rod and slip protruding pole, compression cavity upper portion rigid coupling has a pair of fixed round bar, common slidingtype is connected with the slip locking lever between two fixed round bars, the draw-in groove of extrusion lever is gone into to the slip locking lever card, be connected with a pair of extrusion spring between slip locking lever and the compression cavity, slip locking lever top rigid coupling has fixed push rod, compression cavity upper portion slidingtype is connected with the slip protruding pole, the contact of slip protruding pole and fixed push rod.

Furthermore, the motor fixing plate is connected with the belt protecting sleeve through a bolt.

The invention has the following beneficial effects:

1. circulating current leads to there is the coolant liquid through fixed shell, and the coolant liquid carries out the heat transfer with the compression cavity for the coolant liquid can take away the heat on the compression cavity, thereby can in time effectively give the compression cavity cooling, and the vibrations that produce when this equipment functions simultaneously can make the coolant liquid in the fixed shell roll, are favorable to improving heat exchange efficiency.

2. Through the cooling liquid in the fixed shell, the noise generated by the reciprocating motion of the piston ring in the compression cavity can be isolated, the noise reduction effect is achieved, and the problem of overlarge noise is effectively avoided.

3. If compression spring's elasticity is too strong, only when the piston ring promoted the pressure ram and go up the device upward movement, the core vent just can open, if compression spring's elasticity is too weak, because the slip locking lever blocks the pressure ram, make the core vent not open prematurely, and only when the piston ring promoted the slip protruding pole upward movement, the slip locking lever just did not block the pressure ram, the inside gas of compression cavity can promote the core vent to open this moment, prevent that compression spring's elasticity and the inside atmospheric pressure of compression cavity from not matching and leading to the core vent to open at the optimum time, in order to guarantee the displacement.

4. The fan blades intermittently rotate, so that the fan blades can extract outside air, and the sufficient air suction amount can be ensured.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic perspective view of the driving assembly of the present invention.

FIG. 4 is a schematic partially cut-away perspective view of a crank air compression assembly of the present invention.

Fig. 5 is a schematic partial perspective view of the intake air quantity increasing assembly of the present invention.

Fig. 6 is a partially cut-away perspective view of the intake air quantity increasing assembly of the present invention.

Fig. 7 is a schematic perspective view of the cooling liquid heat exchange noise reduction assembly of the present invention.

FIG. 8 is a schematic representation of a cross-sectional perspective view of a squeeze-open valve assembly of the present invention.

Fig. 9 is an enlarged perspective view of the present invention a.

Reference numerals: 1_ base, 2_ air reservoir, 3_ motor fixed plate, 4_ compression chamber, 5_ drive assembly, 51_ power motor, 52_ small pulley, 53_ rotary shaft, 54_ large pulley, 55_ drive belt, 6_ crank air compression assembly, 61_ fixed crank, 62_ compression handle, 63_ piston ring, 64_ top cover barrel, 65_ fixed rod, 66_ vent plug, 67_ compression spring, 68_ guide rod, 69_ suction plug, 610_ return spring, 611_ vent pipe, 7_ intake air increasing assembly, 71_ drive convex disk, 72_ fixed block, 73_ drive shaft, 74_ fixed small drive disk, 75_ fixed air inlet housing, 76_ fixed filter plate, 77_ small rotary shaft, 78_ fan blade, 79_ transmission shaft, 710_ bevel gear, 711_ universal coupling, 8_ coolant heat exchange noise reduction assembly, 81_ fixed housing, 82_ input pipe, 83_ output tube, 9_ squeeze-to-open valve assembly, 91_ limit seat, 92_ fixed extension piece, 93_ squeeze rod, 10_ plug body locking assembly, 101_ fixed round rod, 102_ sliding locking rod, 103_ squeeze spring, 104_ fixed push rod, 105_ sliding convex rod, 11_ belt protecting sleeve.

Detailed Description

In the description of the present invention, it should be noted that the terms "connected" and "connected" are used broadly and should be understood to include, for example, fixed connections, detachable connections, integrated connections, mechanical connections, electrical connections, direct connections, and indirect connections through intervening media, unless expressly specified or limited otherwise. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The utility model provides an automobile-used oil-free air compressor of new forms of energy, as shown in figure 1, figure 2, figure 3, figure 4, figure 5 and figure 6 are shown, including base 1, gas holder 2, motor fixed plate 3, compression cavity 4, drive assembly 5, crank air compression subassembly 6 and air input increase subassembly 7, 1 top rigid coupling of base has gas holder 2, there is motor fixed plate 3 on 1 upper portion of base through bolted connection, motor fixed plate 3 is located gas holder 2 top, 3 top rigid couplings of motor fixed plate have compression cavity 4, 3 tops of motor fixed plate are equipped with drive assembly 5, the inside crank air compression subassembly 6 that is equipped with of compression cavity 4, crank air compression subassembly 6 is used for air compression, be equipped with air input increase subassembly 7 on the crank air compression subassembly 6, air input increase subassembly 7 is used for increasing the air input.

The driving assembly 5 comprises a power motor 51, a small belt pulley 52, a rotating shaft 53, a large belt pulley 54 and a transmission belt 55, the top of the motor fixing plate 3 is connected with the power motor 51 through a bolt, one end of an output shaft of the power motor 51 is fixedly connected with the small belt pulley 52, the rotating shaft 53 is rotatably connected to the compression cavity 4, one end of the rotating shaft 53, which is far away from the compression cavity 4, is fixedly connected with the large belt pulley 54, the transmission belt 55 is wound between the large belt pulley 54 and the small belt pulley 52, and the small belt pulley 52 can drive the large belt pulley 54 to rotate through the transmission belt 55.

The crank air compression assembly 6 comprises a fixed crank 61, a compression handle 62, a piston ring 63, a top cover cylinder 64, a fixed rod 65, an exhaust plug 66, a compression spring 67, a guide rod 68, an air suction plug 69, a return spring 610 and an exhaust pipe 611, wherein one end of the rotating shaft 53, which is far away from the large belt wheel 54, is fixedly connected with the fixed crank 61, the fixed crank 61 is positioned in the compression cavity 4, the fixed crank 61 is rotatably connected with the compression handle 62, the compression handle 62 and the upper device thereof can reciprocate up and down through the matching of the fixed crank 61 and the compression handle 62, the piston ring 63 is movably connected with the upper part of the compression handle 62, the piston ring 63 is slidably matched with the compression cavity 4, the upper part of the compression cavity 4 is connected with the top cover cylinder 64 through a welding mode, the fixed rod 65 is fixedly connected below the top cover cylinder 64, the lower part of the fixed rod 65 is slidably connected with the exhaust plug 66, when the exhaust plug 66 is opened, the air compressed in the compression cavity 4 can be exhausted, the air exhaust plug 66 is in contact with the compression cavity 4, a compression spring 67 is connected between the air exhaust plug 66 and the top cover cylinder 64, a guide rod 68 is connected below the top cover cylinder 64 in a welding mode, the guide rod 68 penetrates through the compression cavity 4, an air suction plug 69 is connected to the lower portion of the guide rod 68 in a sliding mode, a return spring 610 is connected between the air suction plug 69 and the top cover cylinder 64, an air exhaust pipe 611 is communicated between the top cover cylinder 64 and the air storage tank 2, and the air exhaust pipe 611 is used for conveying air.

The air input increasing component 7 comprises a transmission convex disc 71, a fixed block 72, a transmission shaft 73, a small fixed transmission disc 74, a fixed air inlet shell 75, a fixed filter plate 76, a small rotating shaft 77, fan blades 78, a transmission shaft 79, a bevel gear 710 and a universal coupling 711, wherein the transmission convex disc 71 is fixedly connected on the rotating shaft 53, the fixed block 72 is connected outside the compression cavity 4 in a welding mode, the transmission shaft 73 is rotatably connected on the fixed block 72, the small fixed transmission disc 74 is fixedly connected on the lower part of the transmission shaft 73, the transmission convex disc 71 intermittently drives the small fixed transmission disc 74 to rotate, one side of the top cover cylinder 64 far away from the exhaust pipe 611 is communicated with the fixed air inlet shell 75, the fixed air inlet shell 75 is fixedly connected with the fixed filter plate 76, the fixed filter plate 76 is used for filtering air, the small rotating shaft 77 is rotatably connected inside the fixed air inlet shell 75, the fan blades 78 are fixedly connected on the small rotating shaft 77, the lower portion of the fixed air inlet housing 75 is rotatably connected with a transmission shaft 79, the transmission shaft 79 penetrates through the fixed air inlet housing 75, the upper portion of the transmission shaft 79 is connected with a bevel gear 710 in a welding mode, one end, far away from the fan blades 78, of the small rotating shaft 77 is fixedly connected with the bevel gear 710, the two bevel gears 710 are meshed, and the transmission shaft 79 and the transmission shaft 73 are connected with a universal coupling 711 through a universal joint.

The device is installed on a new energy automobile, when the device is required to compress air, a driver controls the power motor 51 to start, the power motor 51 drives the small belt wheel 52 to rotate clockwise through the output shaft, the large belt wheel 54 and the upper device thereof rotate clockwise under the transmission action of the transmission belt 55, the compression handle 62 and the upper device thereof can reciprocate up and down through the matching of the fixed crank 61 and the compression handle 62, meanwhile, the piston ring 63 can reciprocate up and down in the compression cavity 4, when the piston ring 63 and the upper device thereof move upwards, the piston ring 63 can compress the air in the compression cavity 4, under the pushing action of the air in the compression cavity 4, the air suction plug 69 and the air exhaust plug 66 can move upwards, the compression spring 67 and the return spring 610 can be compressed accordingly, so that the through hole on the left side of the compression cavity 4 is blocked by the air suction plug 69, the air exhaust plug 66 can be opened, the compressed air in the compression cavity 4 enters the top cover cylinder 64 through the through hole opened in the compression cavity 4 and is discharged into the air storage tank 2 through the exhaust pipe 611, so that the air compression is realized. When the piston ring 63 and the device thereon move downward, they no longer compress the air in the compression chamber 4, and the compression spring 67 and the return spring 610 will return and drive the suction plug 69 and the discharge plug 66 and the device thereon to return, so that the through hole on the left side of the compression chamber 4 is opened again and the through hole on the right side is closed again. In the process of downward movement of the piston ring 63 and the upper device thereof, the transmission convex disc 71 can drive the small fixed transmission disc 74 and the upper device thereof to rotate, the transmission shaft 73 can drive the transmission shaft 79 and the upper device thereof to rotate through the universal coupling 711, through the matching of the two bevel gears 710, the small rotating shaft 77 and the upper device thereof can also rotate, under the rotating action of the fan blades 78, the outside air can be extracted into the fixed air inlet shell 75, the air suction amount is increased, the air can be filtered through the fixed filter plate 76, impurities in the air can be prevented from entering the fixed air inlet shell 75, the extracted air can enter the top cover cylinder 64, and then enters the compression cavity 4 through the through hole on the left side of the compression cavity 4 to supplement the air, the operation is repeated, and the air can be compressed again.

Example 2

On the basis of embodiment 1, as shown in fig. 7, still include cooling liquid heat transfer noise reduction assembly 8, cooling liquid heat transfer noise reduction assembly 8 locates on compression cavity 4, cooling liquid heat transfer noise reduction assembly 8 is used for taking away the heat on compression cavity 4 and making an uproar falls, cooling liquid heat transfer noise reduction assembly 8 is including fixed shell 81, input tube 82 and output tube 83, compression cavity 4 outside is connected with fixed shell 81 through the welded mode, the switch-on of fixed shell 81 lower part has input tube 82, the switch-on of fixed shell 81 upper portion has output tube 83.

Input tube 82 and coolant liquid supply end switch-on, output tube 83 and coolant liquid recovery end switch-on, at piston ring 63 and the in-process of last device up-and-down reciprocating motion, can produce a large amount of heats and noise in the compression cavity 4, the coolant liquid pours into fixed shell 81 into through input tube 82, when the coolant liquid in fixed shell 81 rises to a take the altitude, the coolant liquid in fixed shell 81 can discharge through output tube 83, make fixed shell 81 have coolant liquid circulation to circulate always, carry out the heat transfer through coolant liquid and compression cavity 4, thereby make the coolant liquid can take away the heat on the compression cavity 4, the coolant liquid can play the effect of making an uproar of falling simultaneously, the noise prevention is too big, and compression cavity 4 can produce vibrations at the in-process of this equipment operation, make the coolant liquid in the fixed shell 81 roll, thereby can improve heat exchange efficiency.

Example 3

In addition to embodiment 2, as shown in fig. 8, the valve opening device further includes a squeeze valve assembly 9, the squeeze valve assembly 9 is disposed on the vent plug 66, the squeeze valve assembly 9 is used to prevent too slow reaction caused by too strong elasticity of the compression spring 67, the squeeze valve assembly 9 includes a limiting seat 91, a fixed extension 92 and a squeezing rod 93, a pair of limiting seats 91 is fixedly connected to the top of the top cover cylinder 64, the vent plug 66 is connected with the fixed extension 92 by welding, the squeezing rod 93 is fixedly connected to the lower portion of the fixed extension 92, and the squeezing rod 93 passes through the compression cavity 4.

If the elastic force of the compression spring 67 is too strong, the air in the compression cavity 4 may not be enough to push the vent plug 66 when compressing the air, and during the upward movement of the piston ring 63 and the device thereon, the piston rod 93 and the device thereon will be pushed to move upward, so that the vent plug 66 and the device thereon move upward together, and the compression spring 67 will be compressed accordingly, so that the vent plug 66 is opened, and the too slow reaction caused by the too strong elastic force of the compression spring 67 is prevented. When the vent plug 66 rises to a certain height, it will contact the limiting seat 91, so that the limiting seat 91 will block the vent plug 66, and prevent the vent plug 66 and the devices thereon from rising to a too high height. When the piston ring 63 and the upper device are reset downwards, the compression spring 67 is reset along with the piston ring and the upper device, and the exhaust plug 66 and the upper device are reset.

Example 4

On the basis of embodiment 3, as shown in fig. 9, the plug structure further includes a plug body locking assembly 10, the plug body locking assembly 10 is disposed on the compression cavity 4, the plug body locking assembly 10 is used for avoiding the problem that the elastic force of the compression spring 67 is not matched with the air pressure in the compression cavity 4, the plug body locking assembly 10 includes a fixed round rod 101, a sliding lock rod 102, an extrusion spring 103, a fixed push rod 104 and a sliding convex rod 105, the upper portion of the compression cavity 4 is connected with the pair of fixed round rods 101 by welding, the sliding lock rod 102 is connected between the two fixed round rods 101 in a sliding manner, the sliding lock rod 102 is used for locking the extrusion rod 93, the sliding lock rod 102 is locked into the clamping groove of the extrusion rod 93, the pair of extrusion springs 103 is connected between the sliding lock rod 102 and the compression cavity 4, the fixed push rod 104 is fixedly connected to the top of the sliding lock rod 102, the sliding convex rod 105 is connected to the upper portion of the compression cavity 4 in a sliding manner, the sliding cam 105 is in contact with the fixed push rod 104.

If the elastic force of the compression spring 67 is too weak, the air in the compression chamber 4 may push the vent plug 66 to open too early when the air is compressed, resulting in the air in the compression chamber 4 being discharged too early, and therefore the sliding lock lever 102 is provided to lock the pressing rod 93, so that the vent plug 66 may not open too early. When the piston ring 63 and the device on the piston ring ascend, the piston ring 63 contacts with the sliding protruding rod 105 first, the piston ring 63 pushes the sliding protruding rod 105 to move upwards, the piston ring can extrude the fixed push rod 104 and the device on the push rod to move, the extrusion spring 103 is compressed accordingly, the extrusion rod 93 is not clamped by the sliding locking rod 102 any more, at the moment, the air in the compression cavity 4 can push the exhaust plug 66 to open, and the problem that the elasticity of the compression spring 67 is not matched with the air pressure in the compression cavity 4 is effectively avoided. This operation is reversed when the piston ring 63 and its upper assembly are lowered.

Example 5

On the basis of embodiment 4, as shown in fig. 1, the motor fixing plate 3 further includes a belt protecting sleeve 11, the belt protecting sleeve 11 is connected to the motor fixing plate 3 through a bolt, and the belt protecting sleeve 11 plays a role in protecting the transmission belt 55.

Through belt lag 11, can prevent that outside impurity from gluing on drive belt 55, guarantee the normal operating of this equipment, play the effect of protection drive belt 55.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.