CN116906298A - Piston body in cylinder of air compressor - Google Patents
Piston body in cylinder of air compressor Download PDFInfo
- Publication number
- CN116906298A CN116906298A CN202310387465.6A CN202310387465A CN116906298A CN 116906298 A CN116906298 A CN 116906298A CN 202310387465 A CN202310387465 A CN 202310387465A CN 116906298 A CN116906298 A CN 116906298A
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- China
- Prior art keywords
- flat plate
- air
- piston head
- air intake
- plate surface
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
本发明提供一种空气压缩机的汽缸内的活塞体，尤其是指一种空气压缩机所安装的活塞体在其活塞头安装有进气阻片，所述活塞头的平坦板面与所述进气阻片之间形成有间隙，通过活塞体的空气通道因畅通而使汽缸中的压力与周围大气平衡，让空气压缩机再次启动后其活塞体于上冲行程时不会有阻碍且更为顺畅，致使活塞体在汽缸内进行往复运动时能维持较佳效率的压缩效能，且更兼具使用安全性及延长其使用寿命，并能更轻松快速地将待充气物充足气体。
The present invention provides a piston body in a cylinder of an air compressor, and particularly refers to a piston body installed in an air compressor with an air inlet blocker installed on its piston head, and the flat plate surface of the piston head is in contact with the A gap is formed between the air intake blocks, and the air passage passing through the piston body is unobstructed, allowing the pressure in the cylinder to balance with the surrounding atmosphere. After the air compressor is restarted, the piston body will not be hindered during the upstroke and will be more stable. In order to be smooth, the piston body can maintain a more efficient compression performance when it reciprocates in the cylinder, and it is also safer to use and prolongs its service life, and can more easily and quickly inflate the object to be inflated.
Description
Technical Field
The invention relates to the technical field of air compressors, in particular to a piston body capable of performing up-stroke and down-stroke in a cylinder of an air compressor.
Background
The main structure of the air compressor is that the piston body is driven by a motor to perform reciprocating compression action in the cylinder, compressed air can be conveyed into the air storage seat by the cylinder, then a transmission hose connected with a manifold on the air storage seat is connected to an object to be inflated, the piston head is provided with an air channel which is penetrated up and down by the existing piston body, so that the air in the cylinder is communicated with the air in the external environment, the top plane of the piston head is covered with an air inlet blocking piece, the air inlet blocking piece seals the air channel of the piston head in a state that the air compressor is stopped, and when the air compressor is restarted from a static state, the air tightness formed by an airtight ring arranged on the round periphery of the piston head and the air channel of the air inlet blocking piece seals the piston head, so that the resistance of the piston body is increased due to residual pressure in the cylinder to form the effect of high current surge, the traditional automobile power supply can be stopped due to the high current surge to fuse, and then the intelligent electric automobile power supply is stopped under the development trend of the current response concept, when the electric automobile is stopped, the high current surge mechanism of the intelligent electric automobile for protecting the electric automobile for power use is stopped, and the air compressor is stopped immediately when the air is stopped. Therefore, the inventor has developed a clearance between the top plane of the piston head and the air inlet blocking piece when the air compressor is in a stop state, when the air compressor is finished, the compressed air remained in the cylinder can be discharged from the clearance through the air inlet channel and the air channel, so that the pressure in the cylinder is balanced with the surrounding atmosphere, the piston body of the air compressor is not blocked in the upward stroke after the air compressor is restarted, the generation of instant high-current surge is avoided, the piston body can achieve smooth compression efficiency when reciprocating in the cylinder, the use safety is improved, the service life is prolonged, the object to be inflated can be fully and easily and quickly started when the air compressor is stopped at any pressure, the fuse is not fused due to the high-current surge when the high-current surge is generated, or the intelligent electric automobile is cut off under the requirement of a microcomputer system for a protection mechanism of electric power use, so that the function of the air compressor is lost immediately.
Disclosure of Invention
The main object of the present invention is to provide a piston body in a cylinder of an air compressor, in particular, an air inlet channel penetrating up and down is arranged at the top end of the piston head of the piston body, a flat plate surface is formed at the periphery of the air inlet channel, at least one convex body with a height is arranged on the flat plate surface, the convex body is abutted against an air inlet blocking piece fixed on the piston head, so that a gap is formed between the air inlet blocking piece and the flat plate surface of the piston head, the air inlet channel is unblocked, the pressure in the cylinder is balanced with the external atmospheric pressure, and when the piston body is in a static state, the residual pressure remained in the cylinder can be relieved.
Another main object of the present invention is to provide a piston body structure, wherein at least one protrusion having a height and protruding from the flat plate surface is provided on the flat plate surface at the top end of the piston head of the piston body, and the protrusion has a height protruding from the flat plate surface in a vertical direction, so that a gap is formed between the piston head and the air intake resistor.
Still another object of the present invention is to provide a piston body structure, in which a gap is formed between the piston head and the piston body, so that the residual pressure in the cylinder is discharged, and the effect of high current surge caused by the increase of resistance of the piston body during the upward pushing and pushing due to the residual pressure in the cylinder can be prevented when the compression stroke is started or the cylinder is restarted again, and the phenomenon that the air compressor is stopped due to the fuse fusing caused by the high current surge when the air compressor is connected with the power supply of the conventional automobile can be directly avoided, or the power output is cut off immediately when the high current surge occurs due to the protection mechanism of the microcomputer system of the pure environment-friendly electric automobile for the power supply, so that the air compressor is stopped and the air compressor is disabled.
Drawings
Fig. 1 is an exploded perspective view of a piston body of the present invention;
fig. 2 is a perspective view of the piston body of the present invention;
FIG. 3 is an enlarged partial perspective view of the piston body of the present invention with the intake block installed;
FIG. 4 is an enlarged view of a portion of the piston body and intake resistor disc of the present invention;
fig. 5 is an enlarged partial cross-sectional view of the piston body of the present invention;
FIG. 6 is a schematic view of an air compressor of the present invention disposed within a housing;
fig. 7 is a schematic view showing compressed air flow during a piston body undershoot stroke operation of the present invention;
fig. 8 is a partial enlarged view of the piston body of the present invention during the upstroke motion;
fig. 9 is a perspective view of another piston body of the present invention;
FIG. 10 is an enlarged view of a portion of the compressed air flow during the downstroke action of another piston body of the present invention;
fig. 11 is an enlarged partial view of an up stroke operation of another piston body according to the present invention;
FIG. 12 is an enlarged view of a portion of the compressed air flow during the downstroke action of another piston body of the present invention;
fig. 13 is an enlarged partial view of an up stroke operation of another piston body according to the present invention;
fig. 14 is a perspective view of another piston body of the present invention;
FIG. 15 is an enlarged view of a portion of the compressed air flow during the downstroke action of another piston body of the present invention;
fig. 16 is an enlarged partial view of the upstroke motion of another piston body of the present invention.
Description of the reference numerals
1, a box body;
10, an air compressor;
11, a substrate;
12, a motor;
13, a cylinder;
14, a transmission mechanism;
141, a crankshaft;
15, a gas storage seat;
16, a pressure display meter;
2, a piston body;
21, piston head;
211. 212, fixing pins;
213T-shaped bumps;
214, positioning convex wall;
215. 216, convex body;
22, a limiting clamping hook;
221, vertical columns;
222, transverse columns;
23, an air inlet channel;
3, an airtight ring;
4, a piston rod;
41, a round hole;
42, an air channel;
5, flattening the plate surface;
51, a gap;
6, piston head;
an intake passage 61;
62, a flat plate surface;
63, fixing pins;
64, convex body;
65, air inlet blocking sheets;
66, a gap;
7, an air inlet blocking piece;
71, annular inner empty area;
72, outer ring slicing;
721 a concave clamping groove;
73, inner circle slicing;
74 neck section;
75, penetrating holes;
76. 77, a round hole;
8, piston head;
81, an air inlet channel;
82, a flat plate surface;
83, fixing pins;
84, convex body;
85, an air inlet blocking piece;
86, a gap;
9, piston head;
91, flat plate surface;
92, fixing pins;
93 an air intake passage;
94, annular convex body;
95, an air inlet blocking piece;
96, gap.
Detailed Description
Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Referring to fig. 6, the air compressor 10 of the present invention may be disposed in a box 1 and used for air inflation, the air compressor 10 includes a base plate 11 for fixing a motor 12, a cylinder 13 coupled to the base plate 11, and a driving mechanism 14 for the air compressor 10, wherein the driving mechanism 14 is connected to a piston body 2, and the driving shaft of the motor 12 drives a crankshaft 141 of the driving mechanism 14 to rotate, and drives the piston body 2 to perform an up-and down-stroke operation in the cylinder 13 to generate compressed air, and the compressed air may be pushed into an air storage seat 15, and then the compressed air may enter a pressure display table 16 through a gas manifold to display pressure, so that an object to be inflated (not shown in the drawings) can be inflated through engagement of a gas hose.
The most main structural feature of the present invention is that at least one protrusion having a height and protruding from the flat plate surface 5 is provided on the flat plate surface 5 at the top end of the piston head 21 of the piston body 2 of the air compressor 10, and the protrusion may have different shapes and different sizes, so that the protrusion protrudes from the flat plate surface 5 in a vertical direction and has a height, a gap 51 is formed between the piston head 21 and the air intake resistor 7, the protrusion is provided in a range of the flat plate surface 5 covered by the air intake resistor 7, the gap 51 is enough to let the residual pressure in the cylinder 13 be discharged, so that the effect of high current surge formed by increasing the resistance of the piston body 2 when the piston body is pushed up due to the residual pressure in the cylinder 13 is prevented when the piston body is restarted, and the air compressor 10 can be directly prevented from stopping working due to the fuse blowing caused by the high current surge when the conventional automobile power supply is connected, or the air compressor 10 is immediately stopped due to the high current surge occurrence and the power interruption mechanism caused by the microcomputer system of the pure environment-friendly electric automobile.
The technical features of the present invention, at least one boss being provided on the top surface of the piston head 21, will be described later with reference to the embodiments. Referring to fig. 1 to 5, the piston body 2 in the cylinder 13 of the air compressor 10 of the present invention includes a piston head 21 and a piston rod 4 connected with the piston head 21, wherein the top end of the piston head 21 is provided with an air inlet channel 23 penetrating up and down, the top surface of the piston head 21 is formed with a flat plate surface 5, two separated fixing pins 211, 212 are provided at the side of the top end of the piston head 21, a T-shaped protrusion 213 containing a positioning boss 214 is provided between the fixing pins 211, 212, and a limiting hook 22 is provided at the other side of the top end of the piston head 21. The two flat surfaces 5 of the piston head 21, which are located on the two sides of the center line of the T-shaped protrusion 213 and the limiting hook 22, may be respectively provided with protrusions 215, 216, and the protrusions 215, 216 are preferably arranged in a relatively symmetrical manner, and the protrusions 215, 216 are strip-shaped. The bosses 215, 216 are higher than the level of the flat plate surface 5 but lower than the vertical posts 221 of the limit hooks 22, and the airtight ring 3 is mounted on the outer periphery of the piston head 21, and the airtight ring 3 realizes continuous sealing around the piston body 2 and the inner surface of the cylinder 13 during the operation of the air compressor 10. A piston rod 4 extending downward from the piston head 21, wherein a circular hole 41 is provided at a lower end of the piston rod 4 and is pivoted to a crankshaft 141 in the transmission mechanism 14, and an air passage 42 communicating with the atmosphere is provided at an upper end of the piston rod 4 so that the air inlet passage 23 and the air passage 42 communicate with each other. The air intake baffle 7 can be disposed on the flat plate surface 5 of the piston head 21, and one end of the air intake baffle 7 is fixed on the fixing pins 211, 212 of the flat plate surface 5, and the positioning convex wall 214 of the T-shaped protrusion 213 can be engaged with the concave clamping groove 721 of the air intake baffle 7, so that the air intake baffle 7 is easily identified without reverse mounting or reverse mounting during the assembly operation by using an AI robot, which is beneficial to the assembly efficiency of the product. When the air compressor 10 is in a stop state, the air inlet baffle 7 abuts against the two convex bodies 215 and 216 on the flat plate surface 5, so that the air inlet baffle 7 and the flat plate surface 5 have a gap 51, the air inlet channel 23 is unblocked to balance the pressure in the cylinder 13 with the external atmospheric pressure, and when the piston body 2 is in a static state, the residual pressure remained in the cylinder 13 is relieved, as shown in fig. 3.
Referring to fig. 1 and 2, the air intake baffle 7 of the present invention is hollowed out in a non-full circular annular hollow area 71 on the inner peripheral entity, and the air intake baffle 7 is subdivided into an outer ring segment 72 and an inner ring segment 73, the outer ring segment 72 and the inner ring segment 73 form a neck segment 74 at the junction, the air intake baffle 7 is provided with a through hole 75 penetrating the outer ring segment 72 near the neck segment 74, the piston head 21 is provided with the limiting hook 22 at a position corresponding to the through hole 75 and is embedded with the through hole 75, two fixing pins 211 and 212 opposite to the piston head 21 are provided with separated fixing pins 76 and 77 on the air intake baffle 7, the fixing pins 211 and 212 of the piston head 21 are respectively positioned by the circular holes 76 and 77 of the air intake baffle 7, and simultaneously are abutted against the outer edge of the outer ring segment 72 of the air intake baffle 7 through the T-shaped bump 213 of the piston head 21, the positioning protrusion 214 of the T-shaped protrusion 213 is received in the concave slot 721 on the outer edge of the outer ring segment 72 of the air intake resistor 7, so that the air intake resistor 7 can be firmly positioned on the piston head 21, and the positioning protrusion 214 of the T-shaped protrusion 213 can be used as the air intake resistor 7 for identifying the installation and positioning direction during the assembly operation, because if the air intake resistor 7 is assembled reversely, the function of the piston body 2 may be adversely affected, the working efficiency of the piston body 2 is reduced, and when the piston body 2 of the air compressor 10 is in the stopped state, the outer ring segment 72 of the air intake resistor 7 abuts against the two protrusions 215, 216 on the piston head 21, as shown in fig. 3 to 5, so that the air intake resistor 7 and the flat plate 5 of the piston head 21 have the gap 51, the inner circular segment 73 of the air inlet blocking piece 7 keeps open state relative to the air inlet channel 23 and the air channel 42, the air inlet channel 23 of the piston body 2 balances the pressure in the cylinder 13 with the surrounding atmosphere, so that when the compression stroke is started or restarted in a static state each time, the piston body 2 will not be blocked (back pressure resistance) during the up stroke, so that the piston body 2 can maintain smooth compression efficiency when reciprocating in the cylinder 13. As shown in fig. 8, the inner circular segment 73 of the intake block 7 is attached to the flat plate surface 5 of the piston head 21 in the upward stroke of the piston body 2, so that the intake block 7 closes the intake passage 23 and the air passage 42; the piston body 2 tends to enlarge the opening range when the air intake baffle 7 receives the thrust of the external air in the undershoot stroke as shown in fig. 7, but is limited by the transverse column 222 arranged on the limit hook 22, so that the phenomenon that the air intake baffle 7 is easy to be fatigued and damaged due to unrestricted opening of the air intake baffle 7 can be avoided; when the piston body 2 is at rest, the top end plane of the air intake damper 7 and the piston head 21 are kept open, and the through hole 75 of the air intake damper 7 is stopped by the transverse post 222 of the limit hook 22. The vertical column 221 provided by the limit hook 22 of the present invention provides a path for opening and closing the air intake barrier 7, so that the length (or height) of the vertical column 221 and the design of the transverse column 222 can be adjusted according to the power of the air compressor 10 to adjust the initial height of the air intake barrier 7. Because the power source connected to the air compressor 10 may be higher or lower than the default reference voltage of the air compressor 10 under various possible circumstances, the higher the voltage input will relatively increase the rotation speed of the motor 12 of the air compressor 10, the higher the frequency of the reciprocating cycle of the piston body 2 will be, so that the higher the air flow speed pushing the air intake resistor 7 from the lower part of the air intake resistor 7 will increase the impulse, the higher the air intake resistor 7 will be lifted, the larger the bending angle will be, the larger the bending angle and the higher the repetition frequency will be, so that the service life of the air intake resistor 7 will be greatly damaged, and the service life of the air compressor 10 will be directly reduced, while the limiting hook 22 will be used to limit the amplitude height of the air intake resistor 7, so as to avoid the excessive bending angle and the excessive repetition frequency generated by the air intake resistor 7, and effectively protect the service life of the air intake resistor 7.
Referring to fig. 9 to 11, in another piston body embodiment of the present invention, a top end of a piston head 6 of the piston body is provided with an air inlet channel 61 penetrating up and down, a flat plate surface 62 is formed on a top surface of the piston head 6 at an outer periphery of the air inlet channel 61, at least one fixing pin 63 and at least one raised body 64 with a height are provided on the flat plate surface 62, the raised body 64 can be in a cylinder shape, a semicircle shape, a square shape, a triangle shape, etc., the raised body 64 is positioned between the air inlet channel 61 and the at least one fixing pin 63, the air inlet blocking piece 65 can be provided on the flat plate surface 62 of the piston head 6, one end of the air inlet blocking piece 65 is fixed on the fixing pin 63 of the flat plate surface 62, the raised body 64 is abutted against the air inlet blocking piece 65 fixed on the piston head 6, so that the air inlet channel 61 balances the pressure in the cylinder 13 with the external atmosphere pressure, and when the piston head is started or the piston body is in a static state, the residual pressure remaining in the cylinder 13 is made to be thinned out on the flat plate surface 62, and the air inlet blocking piece 65 is closed on the air inlet channel 6 as shown in fig. 11.
Referring to fig. 12 and 13, in another piston body embodiment of the present invention, unlike the piston body embodiment of fig. 1 and 9, the top end of the piston head 8 of the piston body is provided with an air inlet channel 81 penetrating up and down, the periphery of the air inlet channel 81 is formed with a flat plate 82 on the top surface of the piston head 8, the flat plate 82 is provided with at least one fixing pin 83 and at least one raised body 84 with a height, the position of the at least one raised body 84 arranged on the flat plate 82 is not located between the air inlet channel 81 and the fixing pin 83, but is arranged on the other side edge of the air inlet channel 81 opposite to the fixing pin 83, an air inlet baffle 85 can be arranged on the flat plate 82 of the piston head 8, one end of the air inlet baffle 85 is fixed on the fixing pin 83 of the flat plate 82, the raised body 84 is in contact with the air inlet baffle 85 fixed on the piston head 8, so that a gap 86 is formed between the air inlet baffle 85 and the flat plate 82 of the piston head 8, the air inlet channel 81 balances the pressure in the cylinder 13 with the outside air pressure, and the piston body 13 is kept in contact with the flat plate 85 when the air inlet baffle 85 is opened at each time, or the air inlet baffle 85 is kept off on the flat plate 8 when the piston body is opened at a static stroke.
Referring to fig. 14 to 16, another piston body embodiment of the present invention is different from the piston body embodiment of fig. 1, 9 and 12 in that a flat plate surface 91 is formed at the top end of the piston head 9 of the piston body, a fixing pin 92 is provided at the center of the flat plate surface 91, a plurality of air inlet passages 93 are provided at the adjacent circumferential edge of the flat plate surface 91, which are arranged in a circle at intervals and penetrate the upper and lower ends of the piston head 9, an annular protrusion 94 is further provided at the periphery of the circle on the flat plate surface 91 with the center of the circle as a center point, which is located between the air inlet passages 93 and the fixing pins 92 of the circle, an air inlet blocking piece 95 may be positioned on the fixing pin 92 of the flat plate surface 91 of the piston head 9, the annular protrusion 94 is abutted against the air inlet blocking piece 95 fixed on the piston head 9, in a state that the air intake baffle 95 forms a gap 96 with the flat plate surface 91 of the piston head 9, the air intake passage 93 is unblocked to balance the pressure in the cylinder 13 with the external atmospheric pressure, so that the residual pressure remained in the cylinder 13 is relieved at the beginning of each compression stroke or when the piston body is at a static state, the air intake baffle 95 can close the air intake passage 93 in the action of the piston body up stroke (shown in fig. 16), and the air intake baffle 95 is opened in the action of the down stroke and when the piston body is at rest (shown in fig. 15), so that the residual pressure in the cylinder 13 above the piston head 9 can be discharged through the gap 96 and the air intake passage 93 and the pressure in the cylinder 13 is balanced with the external atmospheric pressure.
In summary, in the air compressor 10 of the present invention, in the stopped state, at least one protrusion having a height and protruding from the flat plate surface 5 at the top end of the piston head 21 of the piston body 2 may have different shapes and different sizes, and only the protrusions protrude from the flat plate surface 5 in the vertical direction and have a height, so that a gap 51 is formed between the piston head 21 and the air intake baffle 7, and the gap 51 is sufficient to let the residual pressure in the cylinder 13 escape, so that the air compressor 10 is stopped when the compression stroke is started or restarted in a stationary state, and the effect of high current surge caused by the increase of resistance when the piston body 2 is pushed up due to the residual pressure in the cylinder 13 can be prevented, so that the fuse is fused to stop working when the air compressor 10 is connected to the conventional automobile power supply, or the pure environment-friendly electric automobile is immediately outputted when the high current surge occurs due to the protection mechanism of the microcomputer system for electric power use, so that the air compressor 10 is stopped working, and the invention has novel design and technical progress and progress are lost.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that: the technical scheme described in each embodiment can be modified or some or all of the technical features can be replaced equivalently; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. A piston body in a cylinder of an air compressor having a piston body reciprocally movable up and down in the cylinder by a motor, characterized in that: the piston head of the piston body is provided with an air inlet channel which penetrates up and down, the top end of the piston head of the piston body is provided with a flat plate surface, the flat plate surface around the air inlet channel of the piston head is provided with at least one convex body which is higher than the horizontal plane of the flat plate surface, the flat plate surface of the piston head is provided with an air inlet baffle, the air inlet baffle is abutted against the convex body arranged on the flat plate surface to enable the air inlet baffle to have a gap with the flat plate surface, when the air compressor finishes operation, compressed air remained in the cylinder can be discharged from the gap, so that when each compression stroke is started or restarted in a static state, the piston body is not blocked during an upward stroke, high-current surge is avoided from being generated instantaneously, and the automobile power supply and the air compressor body are damaged.
2. The piston body in a cylinder of an air compressor according to claim 1, wherein the at least one protrusion includes a plurality of protrusions having the same or different shapes and the plurality of protrusions having the same or different volumes, the plurality of protrusions protruding from the flat plate surface in a vertical direction and having a height such that the gap is formed between the piston head and the intake resistor, the protrusions being provided in a range of the flat plate surface covered by the intake resistor, the gap allowing residual pressure in the cylinder to be discharged.
3. The piston body in a cylinder of an air compressor according to claim 2, wherein two fixing pins separated from each other are arranged on the side edge of the top end of the piston head, a T-shaped protruding block with a positioning protruding wall is arranged between the two fixing pins, a limit clamping hook is arranged on the other side edge of the top end of the piston head, the limit clamping hook is used for limiting the amplitude height of the air intake blocking piece so as to avoid the air intake blocking piece from generating an excessive bending angle and an excessive repetition frequency, and the service life of the air intake blocking piece can be effectively protected, protruding bodies are respectively arranged on the flat plate surfaces of the two side edges of the piston head, which are centered by the T-shaped protruding block and the limit clamping hook, the protruding bodies are arranged in a relatively symmetric manner, and the protruding bodies are higher than the horizontal plane height of the flat plate surface but lower than the height of the vertical column arranged by the limit clamping hook; one end of the air inlet blocking piece is fixed on the fixing pin of the flat plate surface.
4. A piston body in a cylinder of an air compressor according to claim 3, wherein the piston head extends downward, and an air passage which can be communicated with the atmosphere is provided at an upper end of the piston rod, and the air passage is communicated with the air inlet passage of the piston head; an airtight ring is mounted around the outer periphery of the piston head, which airtight ring achieves a continuous seal around the piston body and the inner surface of the cylinder during operation of the air compressor.
5. A piston body in a cylinder of an air compressor according to claim 3, wherein the limit hooks on the piston head comprise the upright posts and the transverse posts, and the upright posts provide a path for opening and closing the air intake baffle, so that the length of the upright posts and the design of the transverse posts are adjusted according to the power of the air compressor, and the opening height of the air intake baffle is adjusted.
6. The piston body in a cylinder of an air compressor according to claim 5, wherein the air intake baffle is hollowed out in a non-circular annular inner space on an inner peripheral entity, the air intake baffle is subdivided into an outer ring segment and an inner ring segment, a neck segment is formed at a joint of the outer ring segment and the inner ring segment, a penetrating through hole is formed in the outer ring segment close to the neck segment of the air intake baffle, the limiting hook is arranged at a position corresponding to the penetrating hole of the piston head, the limiting hook is embedded and buckled with the penetrating hole, two separated round holes are formed in the air intake baffle relative to the two fixed pins on the piston head, the two round holes of the air intake baffle are utilized to be respectively positioned at the two fixed pins of the piston head, and simultaneously, the T-shaped protruding block of the piston head abuts against the outer ring segment of the air intake baffle, the positioning protruding block is clamped at the outer edge of the outer ring segment, the positioning protruding block of the T-shaped protruding block is clamped at the outer ring segment of the air intake baffle, and the positioning block is easy to be positioned at the outer ring segment of the air intake baffle, and the positioning block is easy to be distinguished due to the fact that the positioning of the protruding block is in a reverse direction of the air intake baffle is difficult to form.
7. The piston body in a cylinder of an air compressor according to claim 1, wherein at least one fixing pin is provided on the flat plate surface, the shape of the protruding body is a cylinder, a semicircle, a square or a triangle, the protruding body is located between the air intake passage and the at least one fixing pin, the air intake blocking piece is provided on the flat plate surface of the piston head, one end of the air intake blocking piece is fixed on the fixing pin of the flat plate surface, the protruding body is abutted against the air intake blocking piece fixed on the piston head, so that the air intake passage is in a state of forming the gap between the air intake blocking piece and the flat plate surface of the piston head, and the air intake passage is unblocked so that the pressure in the cylinder is balanced with the external atmospheric pressure.
8. The piston body in a cylinder of an air compressor according to claim 7, wherein the at least one protrusion provided on the flat plate surface is not located between the intake passage and the fixing pin but is provided at the other side of the intake passage with respect to the fixing pin.
9. The piston body in a cylinder of an air compressor according to claim 1, wherein a fixing pin is provided at a center of the flat plate surface, a plurality of air intake passages which are arranged in a circle form at intervals and penetrate through upper and lower ends of the piston head are provided adjacent to a circumferential edge of the flat plate surface, and an annular convex body is further provided on the flat plate surface around a center point of a circle and between the air intake passages arranged in the circle form and the fixing pin, the air intake blocking piece is positioned on the fixing pin of the flat plate surface of the piston head, and the annular convex body is abutted against the air intake blocking piece fixed on the piston head so that the gap is formed between the air intake blocking piece and the flat plate surface of the piston head.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111114736A TWI812176B (en) | 2022-04-18 | 2022-04-18 | Piston of cylinder of air compressor |
| TW111114736 | 2022-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116906298A true CN116906298A (en) | 2023-10-20 |
| CN116906298B CN116906298B (en) | 2026-02-13 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310387465.6A Active CN116906298B (en) | 2022-04-18 | 2023-04-12 | Piston body inside the cylinder of an air compressor |
| CN202320803685.8U Withdrawn - After Issue CN220118263U (en) | 2022-04-18 | 2023-04-12 | Piston body in cylinder of air compressor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320803685.8U Withdrawn - After Issue CN220118263U (en) | 2022-04-18 | 2023-04-12 | Piston body in cylinder of air compressor |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP3242362U (en) |
| CN (2) | CN116906298B (en) |
| DE (2) | DE102023109558A1 (en) |
| TW (1) | TWI812176B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI812176B (en) * | 2022-04-18 | 2023-08-11 | 周文三 | Piston of cylinder of air compressor |
| CN117108481A (en) * | 2023-10-09 | 2023-11-24 | 湖南省瑞柯电子科技有限公司 | New piston for air pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060045770A1 (en) * | 2004-08-24 | 2006-03-02 | Fei-Tyh Chuang | Piston rod for oil-less air compressor |
| CN101240784A (en) * | 2007-02-05 | 2008-08-13 | 周文三 | Piston body structure of air compressor |
| TW202200903A (en) * | 2020-06-22 | 2022-01-01 | 周文三 | Air compressor |
| TWM624614U (en) * | 2021-04-14 | 2022-03-21 | 周文三 | Piston body of air compressor cylinder |
| CN220118263U (en) * | 2022-04-18 | 2023-12-01 | 已久工业股份有限公司 | Piston body in cylinder of air compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4275999A (en) * | 1979-08-27 | 1981-06-30 | Thomas Industries, Inc. | Air compressor with ramped intake valve |
| US20060280617A1 (en) | 2003-09-30 | 2006-12-14 | Katsumi Uehara | Compressor and suction valve structure |
| US20070264140A1 (en) | 2006-05-09 | 2007-11-15 | Chou Wen S | Air compressor having improved valve device |
| TW200831785A (en) * | 2007-01-30 | 2008-08-01 | Wen-Shan Chou | Piston structure of an air compressor |
| JP5389349B2 (en) | 2007-11-09 | 2014-01-15 | 周 文三 | Air compressor with improved valve body |
| JP5633520B2 (en) | 2010-01-28 | 2014-12-03 | 株式会社豊田自動織機 | Compressor |
| TWM612468U (en) * | 2020-06-22 | 2021-06-01 | 周文三 | Air compressor device |
-
2022
- 2022-04-18 TW TW111114736A patent/TWI812176B/en active
-
2023
- 2023-04-12 CN CN202310387465.6A patent/CN116906298B/en active Active
- 2023-04-12 CN CN202320803685.8U patent/CN220118263U/en not_active Withdrawn - After Issue
- 2023-04-12 JP JP2023001238U patent/JP3242362U/en active Active
- 2023-04-12 JP JP2023065272A patent/JP7481532B2/en active Active
- 2023-04-17 DE DE102023109558.7A patent/DE102023109558A1/en active Pending
- 2023-04-17 DE DE202023101935.8U patent/DE202023101935U1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060045770A1 (en) * | 2004-08-24 | 2006-03-02 | Fei-Tyh Chuang | Piston rod for oil-less air compressor |
| CN101240784A (en) * | 2007-02-05 | 2008-08-13 | 周文三 | Piston body structure of air compressor |
| TW202200903A (en) * | 2020-06-22 | 2022-01-01 | 周文三 | Air compressor |
| TWM624614U (en) * | 2021-04-14 | 2022-03-21 | 周文三 | Piston body of air compressor cylinder |
| CN220118263U (en) * | 2022-04-18 | 2023-12-01 | 已久工业股份有限公司 | Piston body in cylinder of air compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3242362U (en) | 2023-06-09 |
| TW202342876A (en) | 2023-11-01 |
| CN116906298B (en) | 2026-02-13 |
| CN220118263U (en) | 2023-12-01 |
| DE102023109558A1 (en) | 2023-10-19 |
| JP2023158650A (en) | 2023-10-30 |
| JP7481532B2 (en) | 2024-05-10 |
| DE202023101935U1 (en) | 2023-07-07 |
| TWI812176B (en) | 2023-08-11 |
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