TWM626671U - Porous Piston Body in Air Compressor Cylinder - Google Patents

Abstract

The present invention provides a porous piston body in a cylinder of an air compressor, in particular, a top end plane of a piston head in the cylinder of an air compressor is provided with at least one fixing pin, which can locate at least one intake blocking piece, and the intake blocking piece is located in the air compressor cylinder. There is at least one bending section adjacent to its positioning area, and the other side of the air intake blocking plate located in the bending section is an active area, and the active area can cover at least one air hole on the top plane of the piston head, and the piston on the periphery of the air hole The head is recessed with a ring groove, which can accommodate a spring. The other end of the spring goes up along the ring groove and pushes against the back of the aforementioned air intake blocking piece. The back side and the top plane of the aforementioned piston head form a ventilation space opened at a small angle, so that the pressure in the cylinder can be balanced with the atmospheric pressure outside.

Description

Porous Piston Body in Air Compressor Cylinder

The present invention relates to the technical field of air compressors, in particular to a piston capable of performing upstroke and downstroke strokes in an air compressor cylinder and an air intake resistance sheet overlaid on the piston head.

The main structure of the air compressor is to use a motor to drive a piston to perform a reciprocating compression action in the cylinder. The compressed air can be transported from the cylinder to the air storage seat, and then connected by the manifold on the air storage seat. The transmission hose is connected to the object to be inflated. The conventional piston is provided with an air channel that is penetrated up and down on the piston head, and the top plane of the piston head is covered with an air intake blocking plate on the air channel. When the air compressor is in a stopped state At the bottom, the air intake blocking plate closes the air passage of the piston head. When the air compressor is in the previous operation, it is formed by the O-ring arranged around the circular periphery of the piston head and the air intake blocking sheet closing the air passage of the piston head. The high-pressure air remaining in the cylinder cannot be discharged, and when the air compressor starts again, the piston hits the high-pressure air remaining in the cylinder when it starts to compress, which instantly increases the load of the air compressor. And the current surges, resulting in the loss of life of the air compressor. Patents such as US 6514058, EP 1437508 and other patents created and approved by the author before are aimed at improving the lack of conventional knowledge. Now, the author has developed a method in which the top plane of the piston head is in a state where the air compressor is stopped. A small angle θ ventilation space is formed between the intake resistance plates. When the air compressor is finished operating, the compressed air remaining in the cylinder can be discharged from the ventilation space through the air passage to balance the pressure in the cylinder with the surrounding atmosphere. , so that after the air compressor starts again, the piston will not have additional resistance during the upward stroke, avoiding the instantaneous increase of compression load and current surge, so that the piston can maintain smooth compression performance when reciprocating in the cylinder, It is more safe to use and prolongs its service life, and can more easily and quickly fill the object to be inflated with sufficient gas.

The main purpose of this creation is to provide a porous piston body in an air compressor cylinder. In particular, the top plane of the piston head in the air compressor cylinder is provided with at least one fixing pin, which can locate at least one intake blocking piece. There is at least one bending section adjacent to its positioning area, and the other side of the air intake blocking piece located in the bending section is an active area, and the active area can cover at least one air hole on the top plane of the piston head. The piston head is concavely provided with a ring groove, which can accommodate a spring, the other end of the spring goes up along the ring groove and pushes against the back of the aforesaid intake block, and the action area is facing away from the cylinder top. The back of the air inlet and the top plane of the aforesaid piston head form a ventilation space opened at a small angle, so that the pressure in the cylinder can be balanced with the atmospheric pressure outside, so that the air intake block will no longer have back pressure resistance when it moves again. The upper and lower movements are smoother and more stable.

Another main purpose of the present invention is to provide a porous piston body in an air compressor cylinder, wherein the intake blocking plate is provided with a bending section, and the bending section is physically provided with at least one bending trajectory. In use, the bending section is The plurality of curved trajectories in the segment can meet the output power requirements of different sizes of air compressors.

Please refer to Fig. 6 first, the air compressor 10 of this creation. The air compressor 10 can be installed in the cabin, the box 1 or where it works. As shown in the sixth picture, the box 1 is the device There is an air compressor 10, which can be used as an inflator or combined with a glue replenisher (not shown in the prior art) for glue replenishment and inflation. The air compressor 10 includes a motor 12 for fixing The base plate 11, a cylinder 13 combined on the base plate 11, and the base plate 11 can be provided with a transmission mechanism 14 of the air compressor 10, and the transmission mechanism 14 is connected with a piston body. The piston body includes a piston head 2, and an O-ring 24 is installed around the outer periphery of the piston head 2. The O-ring 24 achieves a continuous seal around the piston body and the inner surface of the cylinder 13 during the operation of the air compressor 10. The aforementioned piston The top plane 20 of the head 2 is provided with at least one air hole 21, and a ring cylinder groove 26 is recessed on the piston head 2 on the periphery of the air hole 21. A spring 6 can be accommodated in it, and the other end of the spring 6 is along the ring cylinder. The groove 26 is upward and slightly raised against the aforesaid air intake blocking piece 7, so that the action area 72 of the air intake blocking piece 7 is still open when the piston body is in the stationary stage. A piston rod 5 extends downward from the aforementioned piston head 2 . The lower end of the piston rod 5 is provided with a circular hole 51 and is pivotally fixed with the crankshaft 141 of the transmission mechanism 14 . When the output shaft of the motor 12 drives the crankshaft 141 of the transmission mechanism 14 to rotate, and at the same time drives the piston body to perform upward and downward movements in the cylinder 13, compressed air is generated to enter the air storage seat 15, and then the compressed air is passed through the air manifold. The arrangement of the pipe allows the compressed air to enter the pressure display meter 16 to display the pressure, and the articles to be inflated can be inflated through the connection of the air hose (not shown in the figure), or through the air hose or The valve switch function allows the tire repair fluid to be delivered to the damaged tire for repairing the tire and the tire repair function of sufficient tire pressure (not shown in the figure), but it is the current state of use, so it is not shown or not. To repeat the details of the structure, here is the first to show.

The piston body installed in the air compressor 10 of the present invention is positioned on the top plane 20 of the piston head 2 with at least one intake blocking piece 7 , and the intake blocking piece 7 is physically provided with a positioning area 71 , and the positioning area There is also a bending section 70 adjacent to 71. The bending section 70 is not a random bending of an air intake blocking piece 7 to have a bending angle to form the bending trajectory 701 in this specification, but is precisely applied. The mechanical process preforms an air intake baffle 7 into a bending angle to form a bending section 70 and its associated bending trajectory 701, whether it is one or more bending trajectory, a plurality of bending trajectory As shown in FIG. 7, the bending section 70 includes a bending track 701, a second bending track 702 and a third bending track 703, which are used to meet the output power requirements of different sizes of air compressors , when the external pressure acts on the air intake blocking piece 7, the stress of the air intake blocking piece 7 can be opened and closed up and down according to the predetermined bending trajectory 701 (or the rail), on one side of the bending section 70 The sheet body is set as a positioning area 71, the other side of the folded section 70 is set as an action area 72, and the positioning area 71 of the air intake resistance piece 7 is fixed on the top plane 20 of the piston head 2. The aforementioned air intake resistance The action area 72 of the sheet 7 and the positioning area 71 of the intake blocking sheet 7 take the bending section 70 as the axis of the boundary so that the positive surface of the intake blocking sheet 7 (that is, the intake blocking sheet 7 during the upward rushing action is facing The upper surface of the top of the cylinder 13) forms an obtuse angle of less than 180 degrees, and at the same time, the action area 72 of the intake blocking plate 7 is naturally formed on the back surface facing away from the top of the cylinder 13 and the top plane 20 of the piston head 2. The opening state of the small angle θ forms a ventilation space Z, and the ventilation space Z communicates with the air hole 21 of the piston head 2, so that the piston body of the air compressor 10 is in the stopped state, and the action area 72 of the air intake blocking plate 7 Relative to the air hole 21 of the piston head 2, the air hole 21 is kept open. The air hole 21 of the piston body balances the pressure in the cylinder 13 with the surrounding atmosphere due to the smooth flow of the air hole 21 of the piston body. There will be no additional resistance (back pressure resistance).

Please refer to the first to fifth embodiments, the piston body installed on the air compressor 10 has an air intake blocking sheet 7 positioned at the axis of the top plane 20 of the piston head 2, and the intake blocking sheet 7 is located near the center of the circle. There is a circle-shaped bending section 70, the sheet body within the radius smaller than the bending section 70 is the positioning area 71, and the ring body outside the radius larger than the bending section 70 is the action area 72, and the action area 72 is in the The back surface facing away from the top of the cylinder 13 and the top plane 20 of the aforementioned piston head 2 are opened at a small angle θ to form a ventilation space Z, and a polygonal perforation 73 is provided in the positioning area 71 of the aforementioned air intake blocking piece 7, which is opposite to the polygonal opening. The through hole 73 is provided with a polygonal base 22 in the piston head 2. The polygonal perforation 73 of the air intake blocking plate 7 is used to locate the polygonal base 22 of the piston head 2, and a fixing cap 25 is used to be sleeved and fixed on the top of the polygonal base 22. On the extended cylinder 23 , the intake blocking plate 7 can be firmly positioned on the piston head 2 . The top plane 20 of the aforementioned piston head 2 is provided with a plurality of air holes 21 which are arranged in a circle at intervals and pass through the upper and lower ends of the aforementioned piston head 2 at its adjacent circumferential edge. The aforementioned spring 6 is arranged in the groove 26 of the ring cylinder of the piston head 2, and the other end of the spring 6 also abuts against the back of the outer ring body outside the positioning area 71 of the intake blocking sheet 7, so that the intake blocking sheet 7 and the The top plane of the piston head 2 presents an open ventilation space Z, based on the design of the folded section 70 of the intake blocking piece 7 and the back of the outer ring body outside the positioning area 71 of the intake blocking piece 7 against the spring 6 On the other hand, when the piston body of the air compressor 10 is in a stationary state, the action area 72 of the intake blocking plate 7 is kept open relative to the air hole 21 of the piston head 2. As shown in the fourth figure, by the piston The air hole 21 of the air compressor 13 is unblocked so that the pressure in the cylinder 13 is balanced with the surrounding atmosphere, so that the piston body of the air compressor 10 will not have additional resistance (back pressure resistance) during the upward stroke after the air compressor 10 is restarted. As shown in Fig. 5, the piston body can maintain smooth compression performance when reciprocating in the cylinder 13, and it is more safe to use and prolong its service life, and can more easily and quickly fill the object to be inflated with sufficient gas. The fourth and fifth figures are the action diagrams of the upward stroke and the downward stroke of the piston body in the cylinder 13. During the upward stroke of the piston body, as shown in the fifth figure, the spring 6 will be compressed and the intake resistance plate 7 will function. The area 72 is in the state of closing the air hole 21 of the piston body. During the downward stroke of the piston body, the spring 6 will expand and open the action area 72 of the air intake blocking plate 7 to leave the air hole 21 and be in an open state, as shown in the fourth figure. When the piston body is at rest In the state, due to the factor that the spring 6 supports the action area 72 of the intake block 7 and the bending section 70 makes the action area 72 of the intake block 7 an opening angle θ, the state is also as shown in the fourth figure, so that the cylinder The high-pressure air remaining in the interior of the cylinder 13 is discharged through the ventilation space Z and the air hole 21, and the pressure in the cylinder 13 is balanced with the atmospheric pressure outside.

The most important technical features of this creation are the first: the air intake blocking piece 7 is physically provided with a bending section 70, and the bending section 70 is provided with at least one bending trajectory 701; One side of the folded section 70 is defined as a positioning area 71, and the other side of the folded section 70 is defined as an active area 72 by the intake blocking sheet 7, so that the active area 72 is connected to the aforementioned piston on the back side facing away from the top of the cylinder 13. The top plane 20 of the head 2 forms a ventilation space Z opened at a small angle θ; third: the top plane 20 of the piston head 2 is provided with at least one air hole 21; fourth: the top plane 20 of the piston head 2 is on the periphery of the air hole 21. The upper concave is provided with at least one annular groove 26, in which a spring 6 can be accommodated. Z communicates with the air hole 21, so that the pressure in the cylinder 13 is balanced with the atmospheric pressure outside, so that there is no back pressure resistance when the air intake blocking plate 7 moves again, so that the upward and downward movements of the piston body are smoother and more stable. Other embodiments in the present invention can achieve the above-mentioned creative purpose with different structures.

Please refer to another embodiment of FIG. 8. Two fixing pins 31, 33 are used to fix the two positioning areas 322, 342 of the two air intake resistance sheets 32, 34 on the top plane 3 of the piston head, respectively. 34 respectively has a bending section 321, 341, and two action areas 323, 343 are located on the other side of the two bending sections 321, 341, and the two action areas 323, 343 can respectively cover the two air holes 35, 36 of the piston head , a ring cylinder groove 351, 361 is recessed on the piston head on the periphery of the two air holes 35, 36, respectively, a spring 37, 38 can be accommodated in it, and the other ends of the two springs 37, 38 are recessed along the second ring cylinder. The grooves 351 and 361 are upward and are respectively on the backs of the two air intake blocking sheets 32 and 34, which are connected to the air holes 35 and 36 through the ventilation space Z. The backs of the two action areas 323 and 343 are still the main creative concept of this creation. , that is, the back surfaces of the action areas 323 and 343 and the top plane 3 of the piston head form a ventilation space Z opened at a small angle θ.

Looking at the previous discussion, the piston body of this creative design concept has a design of porous air holes and at least one air intake resistance piece that can be of different shapes. Space Z balances the pressure inside and outside the cylinder, and also has the ability to eliminate the obstacle of back pressure. For various shapes of the intake block, it has a bending section and the positioning area and action area on both sides. Compared with the original approved EP 1437508, it not only has the Novel and more progressive.

1: Box body 10: Air compressor 11: Substrate 12: Motor 13: Cylinder 14: Transmission mechanism 141: Crankshaft 15: Air storage seat 16: Pressure display gauge 2: Piston head 20: Top Plane 21: Stomata 22: Polygonal base 23: Cylinder 24: O-ring 25: Fixed cap 26: Ring barrel groove 3: Top plane 31: Fixed pin 32: Air intake blocker 321: Bend segment 322: Positioning area 323:Action area 33: Fixed pin 34: Air intake blocker 341: Bend segment 342: Positioning area 343:Action area 35: Stomata 351: Ring barrel groove 36: Stomata 361: Ring Cylinder Groove 37: Spring 38: Spring 5: Piston rod 51: round hole 6: Spring 7: Air intake blocker 70: Bend segment 701: Bend the track 702: Second bending track 703: The third bending track 71: Positioning area 72:Action area 73: Polygonal Perforation Z: ventilation space θ: angle

The first picture: It is a three-dimensional exploded view of the piston body of this creation. The second picture: It is a sectional view of the piston body of this creation. Figure 3: It is a partial enlarged cross-sectional view of the piston body of this creation. Figure 4: It is a schematic diagram of the compressed air circulation of the piston body under the stroke of the cylinder in this creation. Figure 5: It is a partially enlarged schematic diagram of the piston body during the upward stroke action of this creation. Picture 6: It is a schematic diagram of the air compressor installed in the box. Figure 7: This is a cross-sectional view of the air intake blocker with multiple curved trajectories. The eighth picture: It is an example of another piston body and another air intake resistance piece of this creation.

2: Piston head

20: Top Plane

21: Stomata

22: Polygonal base

23: Cylinder

24: O-ring

25: Fixed cap

26: Ring barrel groove

5: Piston rod

51: round hole

6: Spring

7: Air intake blocker

70: Bend segment

701: Bend the track

71: Positioning area

72:Action area

73: Polygonal Perforation

Claims (7)

A porous piston body in an air compressor cylinder, the top plane of the piston head in the air compressor cylinder is provided with at least one fixing pin, which can locate at least one intake blocking piece, and the intake blocking piece is provided with a position adjacent to its positioning area. At least one folded section, the other side of the air intake blocking piece located in the folded section is an active area, the active area can cover at least one air hole on the top plane of the piston head, and at least one air hole is arranged on the piston head away from the aforesaid air hole. The annular groove of the spring is accommodated, the other end of the spring is on the back of the aforementioned air intake blocking sheet, and the action area forms a ventilation space opened at a small angle with the top plane of the aforementioned piston head on the back side facing away from the cylinder top, By connecting the ventilation space with the air hole, the pressure in the cylinder can be balanced with the atmospheric pressure outside, so that the aforementioned air intake block will no longer have back pressure resistance when it moves again, so that the upward and downward movements of the piston body are smoother and more stable. stable. The porous piston body in the cylinder of the air compressor according to claim 1, wherein the body of the bending section is provided with at least one bending trajectory. The porous piston body in the cylinder of the air compressor according to claim 2, wherein the bending section is provided with a plurality of bending trajectories to meet the output power requirements of different sizes of the air compressor. The porous piston body in the cylinder of the air compressor according to claim 1, wherein the piston body installed in the air compressor has an intake blocking sheet positioned at the axial center of the top end plane of the piston head, and the intake blocking sheet is located at the axis of the top end plane of the piston head. There is a circle-shaped bending section near the center of the circle. The sheet body within the radius smaller than the bending section is the positioning area, and the ring body outside the radius larger than the bending section is the action area. The action area is facing away from the cylinder. The back of the top and the top plane of the aforementioned piston head are opened at a small angle to form a ventilation space. The top plane of the aforementioned piston head near the outer circumference is provided with air holes that penetrate the upper and lower ends of the aforementioned piston head, and the air holes are communicated with the aforementioned ventilation space. , so that the pressure in the cylinder is balanced with the atmospheric pressure outside, so that there is no back pressure resistance when the aforementioned intake block moves again, so that the upward and downward movements of the piston body are smoother and more stable. The porous piston body in an air compressor cylinder as claimed in claim 4, wherein the air holes are a plurality of spaced air holes arranged in a circular shape on the top plane of the piston head near the outer circumference. The porous piston body in the cylinder of the air compressor according to claim 4, wherein a polygonal perforation is provided in the positioning area of the air intake blocking piece, and a polygonal base is provided in the piston head relative to the polygonal perforation, and the intake air is used for The polygonal perforation of the blocking piece is positioned on the polygonal base of the piston head, and a fixing cap is used to sleeve and fix it on the cylinder extending from the top of the polygonal base, so that the intake blocking piece can be firmly positioned on the piston head. When the air is compressed When the piston body of the machine is in a stationary state, the action area of the air intake block is open relative to the air hole of the piston head. The porous piston body in the cylinder of the air compressor according to claim 1, wherein the two positioning areas of the two intake air blocking sheets are respectively fixed with two fixing pins on the top plane of the piston head, and the two air intake blocking sheets have a folding The other side of the two curved sections is the two action areas. The two action areas can respectively cover the two air holes of the piston head. The back of the two action areas and the top plane of the piston head form a small angle open ventilation space.

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