TWM627548U - Intake resistance plate of cylinder piston body - Google Patents

Abstract

The present invention provides an intake blocking piece for a cylinder piston body. The intake blocking piece has a positioning area that can be fixed in combination with the top plane of the piston head, and is adjacent to the positioning area and is provided with a bending section, so that the intake resistance can be prevented. The rest of the sheet next to the folded section and not belonging to the positioning area constitutes an active area located above the intake passage of the piston body. The active area and the top plane of the piston head form a small-angle ventilation space. The piston rod extending below the center has a hole, the bottom end of the vertical column tip is sleeved with a spring, the other end of the spring is slightly raised against the aforementioned air intake resistance piece, so that the piston head is penetrated by the air intake channel up and down. In communication with the ventilation space, when the piston body is at rest, the action area of the intake blocking plate remains open.

Description

Intake resistance plate of cylinder piston body

The present invention relates to the technical field of air compressors, in particular, to a piston body and its intake blocking plate that can perform upstroke and downstroke strokes in the cylinder of the air compressor.

The main structure of the air compressor is to use a motor to drive a piston body 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. In the conventional piston body, the piston head is provided with an air passage that is penetrated up and down, and the top plane of the piston head is covered with an air inlet blocking piece on the air passage. In the state of shutdown, the air intake blocking plate closes the air passage of the piston head. When the air compressor is in the previous operation, the air tight ring set around the circular circumference of the piston head and the air intake blocking plate close the air in the piston head. The air tightness formed by the channel makes it impossible for the high-pressure air remaining in the cylinder to be discharged, and when the air compressor starts again, the piston body hits the high-pressure air remaining in the cylinder when it starts to compress, causing it to increase the air instantly. The load and current of the compressor surge, resulting in the loss of the life of the air compressor. In order to improve the lack of conventional knowledge, therefore, the author developed a kind of ventilation space with a small angle between the top surface of the piston head and the air intake resistance plate when the air compressor is in the stopped state. After the operation of the compressor is completed, the compressed air remaining in the cylinder can be discharged from the ventilation space through the air passage, so that the pressure in the cylinder is balanced with the surrounding atmosphere, so that the piston body of the air compressor does not work during the upstroke after restarting. There will be additional resistance to avoid the instantaneous increase of compression load and current surge, so that the piston body can maintain smooth compression performance when reciprocating in the cylinder, and it is more safe to use and prolong its service life, and can be more Easily and quickly fill up the object to be inflated.

The main purpose of this creation is to provide an air intake blocking piece for a cylinder piston body, the intake blocking piece is provided with a bending section, and one side of the bending section is set as a positioning area, which can be installed on the piston head. On the top plane, the other side is the action area that can cover the intake passage of the piston body. The action area of the air intake block and the positioning area of the intake block take the bending section as the axis of the phase boundary to make the intake resistance. The outer surface of the plate forms an obtuse angle of less than 180 degrees in a structural state, and at the same time, the inward surface of the air intake blocking plate naturally forms a small angle θ with the top plane of the piston head, forming a ventilation space Z, the aforesaid The piston rod extending below the axis of the piston head has a hole, and a spring is sleeved on the upright column tip at the bottom end. The aforesaid air intake block is slightly raised, so that when the piston body of the air compressor is in a stationary state, the action area of the intake block is kept open relative to the intake channel system. Balance the pressure in the cylinder with the surrounding atmosphere, so that after the air compressor starts again, the piston body will not have additional resistance (back pressure resistance) during the upstroke, so that the piston body can maintain smooth reciprocating motion in the cylinder The compression efficiency is better, and it is more safe to use and prolong its service life, and it can more easily and quickly fill the gas to be inflated.

Another main purpose of the present invention is to provide an intake blocking piece for a cylinder piston body. The intake blocking piece forms a multi-track bending section on the blocking piece by a mechanical process between the positioning area and the action area. The multi-track bending section contains a number of bending tracks, so that the air compressor with larger output power has more buffering ability and can smoothly carry out the up and down stroke. The top plane of the aforementioned piston head remains open.

Another main purpose of this creation is to provide an air intake blocking piece for a cylinder piston body. There are fixing pins.

Another main purpose of the present creation is to provide an air intake block for a cylinder piston body, the piston system includes a piston head and a piston rod extending below its axis, the piston rod is provided with a hole that runs through the left and right sides of the solid body The hole communicates with the outside world and forms an air channel. The hole is communicated with the air inlet channel of the aforementioned piston head. There is an upright column tip on the bottom end surface of the hole, and a spring is set on it. The cavity of the piston rod extends through the intake passage of the piston head.

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

21: Piston head

210: Top Plane

211: Fixed pin

212: Fixed pin

23: Intake channel

24: Air tight ring

5: Piston rod

50: Cave

51: round hole

52: Air channel

53: Post tip

54: Spring

7: Air intake blocker

71: Bend segment

711: Bend the track

712: Second bending track

713: The third bending track

72: Positioning area

721: round hole

722: round hole

73:Action area

81: Piston head

82: Upper Platform

83: Upper Platform

84: Bottom Platform

85: Bottom Platform

86: Intake channel

87: Air channel

870: Cave

871: Post tip

88: Piston rod

9: Air intake blocker

91: Positioning area

911: round hole

912: round hole

92: Action area

93: Multi-track bending section

931: The first bending track

932: Second bending track

Z: ventilation space

θ: angle

The first picture: It is a three-dimensional exploded view of the piston body, spring and air intake resistance plate of this creation.

The second picture: It is a three-dimensional view of the piston body, spring and air intake resistance plate of this creation.

The third picture: It is a schematic diagram of the compressed air flow when the piston body in the cylinder is under stroke action.

Figure 4: It is a partial enlarged cross-sectional view of the piston body of this creation.

Figure 5: It is a partially enlarged schematic diagram of the piston body in the cylinder in the upward stroke of this creation.

Picture 6: It is a schematic diagram of the air compressor installed in the box of this creation.

Figure 7: It is an exploded perspective view of another piston body.

Figure 8: It is a sectional plan view of another piston body.

Figure 9: It is a partial enlarged cross-sectional view of another piston body.

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 set empty The transmission mechanism 14 of the gas compressor 10, the transmission mechanism 14 is connected with a piston body, please refer to the first to fifth figures at the same time, the piston body includes a piston head 21, and the upper end of the piston head 21 has a top surface 210 and its outer surface An airtight ring 24 is installed around the periphery. The airtight ring 24 achieves continuous sealing around the piston body and the inner surface of the cylinder 13 during the operation of the air compressor 10 . The aforementioned piston head 21 extends downward with a piston rod 5, the lower end of the piston rod 5 is provided with a circular hole 51 and is pivotally fixed with the crankshaft 141 in the transmission mechanism 14, and the upper end of the aforementioned piston rod 5 is provided with a hole through the left and right sides of the solid body The hole 50 forms an air channel 52, the hole 50 is communicated with the air inlet channel 23 of the piston head 21, and there is an upright column tip 53 on the bottom end surface of the hole 50, and a spring 54 is sleeved on it. The spring 54 passes through the intake passage 23 of the piston head 21 along the hole 50 of the piston rod 5, so that the other end of the spring 54 abuts on the back of the action area 73 of the intake resistance piece 7, so that the intake resistance piece 7. Due to the force of the spring 54, the action area 73 of the air intake blocking sheet 7 can also be kept in a state of opening at a small angle θ. This design enables the air passage 52 and the intake passage 23 to communicate with the atmosphere. 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 to generate compressed air into the gas storage seat 15 (refer to the sixth figure), Then through the setting of the air delivery manifold, the compressed air can 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 delivery hose (not shown in the figure), or through the connection of the air hose. The function of the air hose or the valve switch allows the tire repair fluid to be delivered to the damaged tire for repairing the tire and filling the tire with sufficient tire pressure (not shown in the figure). The structure of the details will not be shown or described in detail, and will be explained here first.

The piston body installed in the air compressor 10 of the present invention has an intake air blocking piece 7 installed on the piston head 21. The air intake blocking piece 7 is provided with a bending section 71, and the bending section 71 is not a random air intake. The blocking sheet 7 is bent to have a bending angle to form the bending trajectory 711 in this specification, but a mechanical process is precisely applied to pre-form an intake blocking sheet 7 with a bending angle to form the bending section 71 and its surrounding. The attached bending trajectory 711, whether it is one or more bending The curved section 71 contains a bending track 711, a second bending track 712 and a third bending track 713 (refer to the fourth figure) to meet the output power requirements of different sizes of air compressors. When the external pressure When acting 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 711 (or track), and a positioning area 72 can be set on one side of the bending section 71. As installed on the aforementioned piston head 21, that is, the piston head 21 is provided with two-phase-separated fixing pins 211, 212, and relative to the fixing pins 211, 212 in the positioning area 72 of the air intake blocking plate 7 is provided with a phase-separated The circular holes 721 and 722 of the air intake resistance piece 7 are respectively positioned on the fixing pins 211 and 212 of the piston head 21 by the circular holes 721 and 722 of the air intake resistance piece 7 , so that the air intake resistance piece 7 can be firmly positioned on the piston head 21 . On the other side of the folded section 71, the aforementioned air intake blocking piece 7 is an action area 73, which can cover the intake passage 23 of the piston body. The positioning area 72 of the 7 takes the bending section 71 as the axis of the phase boundary, so that the positive surface of the intake blocking piece 7 (that is, the upper surface of the intake blocking piece 7 facing the top of the cylinder 13 during the upward rushing action) forms a smaller than 180. At the same time, the action area 73 of the intake block 7 can naturally form a small angle θ with the top plane 210 of the piston head 21 on the back surface facing away from the top of the cylinder 13, forming a ventilation space. Z, referring to the third and fourth figures at the same time, when the piston body of the air compressor 10 is in a stationary state, the action area 73 of the intake blocking plate 7 is kept open relative to the intake passage 23 and the air passage 52, At the same time, because a spring 54 is provided in the cavity 50 of the piston rod 5 , the other end of the spring 54 also abuts against the back of the action area 73 of the air intake blocking piece 7 , so that the air intake blocking piece 7 and the top plane of the piston head 21 present a flat surface. The ventilation space Z in the open state is based on the design of the folded section 71 of the intake blocking piece 7 and the spring 54 against the back surface of the action area 73 of the intake blocking piece 7, allowing the opening action of the intake blocking piece 7 or the piston When the head 21 is stationary, the intake block 7 can be kept under smooth operation and protection to avoid elastic fatigue, and the pressure in the cylinder 13 can be balanced with the surrounding atmosphere due to the smooth flow of the intake passage 23 of the piston body. , so that the piston body of the air compressor 10 will not have additional resistance (back pressure resistance) during the upward stroke (as shown in the fifth figure) after the air compressor 10 is restarted, so that the piston body can maintain the reciprocating motion in the cylinder 13. Smooth compression performance, more safety in use and longer service life life, and can more easily and quickly fill the gas to be inflated. The third 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 54 will be compressed and the air intake resistance plate 7 will function. The area 73 is in the state of closing the intake passage 23 of the piston body. During the downward stroke of the piston body, the spring 54 will stretch and stretch the action area 73 and the bending section 71 of the intake blocking plate 7 to leave the intake passage 23 in an open state. In Figures 3 and 4, when the piston body is in a static state, since the spring 54 supports the action area 73 of the air intake resistance piece 7, the action area 73 of the air intake resistance piece 7 has an opening angle θ, and the state is also the same as the third As shown in the figure, the high-pressure air remaining in the cylinder 13 can be discharged through the ventilation space Z and the intake passage 23, and the pressure in the cylinder 13 can be balanced with the atmospheric pressure outside, so that the next time the piston body works again, it can overcome the intake air. The back pressure of the air blocking sheet 7 is troublesome.

Based on the demand for different output power of the air compressor, the size and hardness of the air intake baffle 7 need to be changed accordingly. It has a large amplitude of opening and closing. Therefore, as mentioned above, in use, the bending section can be provided with a plurality of bending tracks to meet the output power requirements of different sizes of air compressors. Please refer to the seventh to As shown in Figure 9, the bending section in another embodiment of the present invention is the multi-track bending section 93, and the multi-track bending section 93 in this specification refers to the part with the shape of the bending angle completed by mechanical technology. , that is, the multi-track bending section 93 forms a first bending trajectory 931 and a second bending trajectory 932, and with the multi-track bending section 93 as the boundary, a The positioning area 91 and an action area 92 with a different level from the positioning area 91, the circular holes 911, 912 of the positioning area 91 extending backward from the second bending trajectory 932 can respectively penetrate through the top plane of the piston head 81 The upper level platforms 82 and 83 are set and stop at the bottom level platforms 84 and 85 provided on the top plane of the piston head 81. The piston head 81 still extends downward with a piston rod 88, and the upper end of the piston rod 88 is still provided with a through body. The caves 870 on the left and right sides form an air passage 87. There is an upright column tip 871 on the bottom end surface of the cave 870, and a spring 54 is sleeved on it. When the air compressor outputs high power, the first bending The trajectory 931 abuts on the top plane of the piston head 81, so that the body of the action area 92 of the air intake blocking plate 9 is in line with the front surface. The top planes of the piston head 81 together form an open state of a small angle θ. When the piston body of the air compressor is in a stationary state, the air intake blocking plate 9 and the first bending trajectory 931 are supported by the spring 54 to allow the air compressor to enter. The active area 92 of the air blocking sheet 9 is at an opening angle θ, and the active area 92 of the air intake blocking sheet 9 is kept open relative to the intake passage 86 penetrating up and down the piston body. The air passage 87 at the upper end of the piston rod 88 is connected to balance the pressure in the cylinder 13 with the surrounding atmosphere, so that after the air compressor starts again, the piston body will not have additional resistance (back pressure resistance) during the upstroke, resulting in When the piston body reciprocates in the cylinder 13, it can maintain smooth compression performance, and it is more safe to use and prolong its service life. Due to the design of the multi-track bending section 93 of the air blocking sheet 9, the overall opening and closing of the intake blocking sheet 9 has a smoother function and can protect the entire intake blocking sheet 9 from damage.

21: Piston head

210: Top Plane

211: Fixed pin

212: Fixed pin

23: Intake channel

24: Air tight ring

5: Piston rod

50: Cave

51: round hole

52: Air channel

53: Post tip

54: Spring

7: Air intake blocker

71: Bend segment

711: Bend the track

712: Second bending track

713: The third bending track

72: Positioning area

721: round hole

722: round hole

73:Action area

Claims (7)

The utility model relates to an air intake blocking piece for a cylinder piston body. An air intake blocking piece is installed on the top plane of the piston head of the piston body installed in the air compressor. It is set that the positioning area can be installed on the top plane of the aforementioned piston head, and the other side is the active area that can cover the intake passage of the piston body. The bent section is the axis of the phase boundary, so that the outer surface of the intake block forms an obtuse angle of less than 180 degrees, and at the same time, the inward surface of the action area of the intake block naturally forms a small angle with the plane of the top of the piston head. In the open state, a ventilation space is formed. The aforementioned piston head extends downward with a piston rod. The upper end of the piston rod is provided with a hole that runs through the left and right sides of the solid body and forms an air channel. Connected to each other, there is an upright column tip on the bottom end surface of the cave, and a spring is sleeved on it. The back of the action area of the air intake blocker allows the air intake blocker to keep the action area of the air intake blocker open at a small angle due to the force of the spring, so that the air passage and the air intake passage can be connected to the atmosphere. The intake blocking plate of the cylinder piston body according to claim 1, wherein the bending section can be provided with a plurality of bending trajectories in use to meet the output power requirements of different sizes of air compressors. The intake blocking plate of the cylinder piston body according to claim 1, wherein the bending section is substantially provided with a bending trajectory. The air intake resistance piece of the cylinder piston body according to claim 1, wherein the piston head is provided with two-phase separated fixing pins, and relative to the fixing pins, a phase-separated circular hole is arranged in the positioning area of the air intake resistance piece , Use the circular holes of the air intake blocking piece to be positioned on the fixing pins of the piston head respectively, so that the air intake blocking piece can be firmly positioned on the piston head. The aforementioned corresponding intake passages of the piston heads are in an open state. The air intake blocking sheet for a cylinder piston body as claimed in claim 2, wherein the plurality of bending trajectories is that the bending section includes a bending trajectory, a second bending trajectory and a third bending trajectory Line, so that the air compressor that needs to have a larger output power has more buffer capacity and can smoothly perform the up and down stroke. When the piston body is in a stationary state, the action area of the air intake blocking plate is parallel to the top plane of the aforementioned piston head. Keep it open. The air intake blocking plate of a cylinder piston body according to claim 2, wherein the bending section is a multi-track bending section, and the multi-track bending section forms a first bending trajectory and a second bending The folded track line is divided by the multi-track folded section, and a positioning area and an action area with a different level from the positioning area are arranged on the air intake blocker, so that the air compressor with higher output power can be more efficient. Smooth up and down strokes. The air intake blocking plate of the cylinder piston body according to claim 6, wherein the circular holes provided in the positioning area extending backward from the second bending trajectory can respectively penetrate through the upper steps provided on the top plane of the piston head. The platform ends at the bottom platform set on the top plane of the piston head.

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