Piston ring overlapping type piston

Abstract

The utility model provides a piston with overlapped piston rings, which belongs to the technical field of pistons, mainly aims at solving the problems that the existing piston is short in service life and complicated to disassemble and assemble, and comprises a piston main body, a piston end head is arranged at one end of the piston main body, and two groups of fastening blocks are arranged at one end of the piston end head. Multiple sets of fastening columns are arranged at the tops of the two sets of fastening blocks, multiple sets of friction sleeves are arranged on the multiple sets of fastening columns in a sleeving mode, two sets of piston semi-rings are arranged at one ends of the multiple sets of friction sleeves correspondingly, multi-stage pressure relief grooves are formed in one ends of the two sets of piston semi-rings correspondingly, and multiple sets of multi-stage pressure relief plates are arranged in the two sets of multi-stage pressure relief grooves in a staggered mode; a plurality of groups of arc-shaped pressure relief grooves are formed in one end of the piston ring main body; through cooperation of the fastening column and the fastening block, connection between the piston semi-ring and the piston end is tighter, through cooperation of the multi-stage pressure relief groove and the arc-shaped pressure relief groove, when the piston works, pressure relief can be conducted, and therefore the service life of the piston is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of pistons, and more specifically relates to a piston ring overlapping type piston. Background Art

[0002] With the continuous development of internal combustion engine technology, increasingly stringent performance requirements are being placed on piston rings. As one of the more important parts of the piston, the design of the piston ring determines the sealing performance, mechanical loss and service life of the piston. When the engine speed increases, the compression ratio increases, and the working environment becomes harsh, the piston wears out more, resulting in a shorter service life of traditional pistons. In addition, the user is often cumbersome when disassembling and assembling traditional pistons. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a piston with overlapping piston rings to solve the technical problems in the prior art that traditional pistons have a short service life and are complicated to disassemble and assemble.

[0004] The purpose and effect of the piston ring overlapping type piston of the utility model are achieved by the following specific technical means:

[0005] A piston ring overlapping piston comprises a piston body, a piston head is provided at one end of the piston body, two groups of fastening blocks are provided at one end of the piston head, multiple groups of fastening columns are provided on the top of the two groups of fastening blocks, multiple groups of friction sleeves are sleeved on the multiple groups of fastening columns, two groups of piston half rings are respectively provided at one end of the multiple groups of friction sleeves, multiple groups of piston half rings are provided at one end of the two groups of piston half rings, multiple stages of pressure relief grooves are provided at one end of the two groups of multi-stage pressure relief grooves, multiple groups of multi-stage pressure relief plates are staggeredly provided in the two groups of multi-stage pressure relief grooves, a piston ring body is clamped on the piston body, and multiple groups of arc-shaped pressure relief grooves are provided at one end of the piston ring body.

[0006] According to a preferred embodiment, the inner walls of the two groups of piston half rings are provided with two groups of second air channels connected to the multi-stage pressure relief grooves, and one end of the piston body is provided with four groups of first air channels, and one end of the four groups of first air channels respectively corresponds to the four groups of second air channels, and the two groups of piston half rings are provided with piston rings on the ends away from the piston body.

[0007] According to a preferred embodiment, the inner wall of the piston half ring is serrated, and a serrated groove is provided on the surface of the piston ring body. The piston half ring is clamped in the serrated groove, and multiple groups of arc-shaped pressure relief grooves are arranged in a ring shape at one end of the piston ring body away from the piston end head.

[0008] According to a preferred embodiment, two groups of grooves are provided on the surface of the piston end head, multiple groups of springs are provided in the two groups of grooves, the fastening blocks are provided on the tops of the multiple groups of springs, and multiple groups of grooves are provided on the inner walls of the two groups of piston half rings respectively, and the multiple groups of fastening columns and the two groups of fastening blocks are all clamped in the grooves.

[0009] According to a preferred embodiment, multiple groups of sockets are provided through one end of the two groups of piston half rings, two groups of special-shaped pins are respectively passed through the multiple groups of sockets, four groups of special-shaped fixing covers are respectively provided at one end of the two groups of special-shaped fixing covers, gaskets are provided at one end of the four groups of special-shaped fixing covers and the two groups of special-shaped pins, anti-slip columns are provided at one end of the two groups of special-shaped fixing covers, and a first disassembly hole is provided through one side of the two groups of special-shaped pins.

[0010] According to a preferred embodiment, the piston body and one end of the piston end are both provided with connecting rings, the same group of annular pins are passed through the two groups of connecting rings, an annular fixing cover is provided at one end of the annular pin, and second disassembly holes are opened on both sides of the annular pin.

[0011] According to a preferred embodiment, the piston body and the piston end bracket are provided with multiple groups of connecting blocks, one end of each of the multiple groups of connecting blocks is welded to the piston body, the other end of each of the multiple groups of connecting blocks is provided with connecting magnets, and one end of each of the multiple groups of connecting magnets is provided with a metal sheet.

[0012] According to a preferred embodiment, one end of the multiple groups of springs is respectively connected to the two groups of piston half rings, and the other ends of the multiple groups of springs are respectively connected to the two groups of fastening blocks.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the piston is working, the air pressure generated enters the second air passage through the first air passage, and is then discharged through the second air passage. When discharged from the second air passage, the pressure is relieved by the cooperation of the multi-stage pressure relief plate and the multi-stage pressure relief groove. If the air pressure generated enters from the second air passage, it is relieved by the multi-stage pressure relief plate and the multi-stage pressure relief groove before entering the second air passage, and then enters the second air passage and is discharged through the first air passage, thereby reducing the air pressure to which the piston is subjected during operation. In addition, pressure relief can also be achieved through the provision of the arc-shaped pressure relief groove. The fastening block and the fastening column are clamped into the piston half ring, so that the connection between the piston half ring and the piston end head is tighter, preventing fuel gas from entering the piston, and effectively extending the service life of the piston.

[0015] 2. When the user disassembles and assembles the piston, the two sets of piston half rings can be fixed to the piston end head by inserting the special-shaped pins into the two sets of piston half rings, and then connecting the special-shaped fixing covers with the special-shaped pins. When disassembly is required, the external tool can be inserted into the first disassembly hole, and then the special-shaped pin can be pulled out of the special-shaped fixing cover. The connecting block at one end of the piston body is inserted into the piston end head, so that the connecting magnet and the metal sheet are magnetically connected, so that the piston body and the piston end head are connected for the first time. The annular pin is inserted into the two sets of connecting rings, and then the annular fixing cover is connected with the annular pin, so that the piston body and the piston end head are fixed. When disassembly is required, the external tool can be inserted into the first disassembly hole and the annular pin can be pulled out of the annular fixing cover. Disassembly and assembly are relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a piston with overlapping piston rings according to the present invention;

[0017] Figure 2 This is an exploded view of a piston with overlapping piston rings according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a piston ring overlapping piston after the special-shaped latch and special-shaped fixing cover are separated;

[0019] Figure 4 This is a schematic structural diagram of a piston ring overlapping type piston of the utility model after the middle metal sheet and the connecting magnet are separated;

[0020] Figure 5 This is a rear view of a piston with overlapping piston rings according to the present invention.

[0021] In the figure, the corresponding relationship between component names and drawing numbers is as follows:

[0022] 10. Piston body; 101. Piston ring body; 102. Connecting ring; 103. Annular pin; 104. Annular fixing cover; 105. Second disassembly hole; 106. Connecting block; 107. Connecting magnet; 108. Metal sheet; 109. Serrated groove; 110. Arc-shaped pressure relief groove; 20. Piston end; 201. Spring; 202. Fastening block; 203. Fastening column; 204. Friction sleeve; 205. Piston half ring; 206. Multi-stage pressure relief groove; 207. Multi-stage pressure relief plate; 208. Piston ring; 209. Special-shaped pin; 210. Gasket; 211. Special-shaped fixing cover; 212. Anti-skid column; 213. First disassembly hole; 214. First air duct; 215. Second air duct. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] Example:

[0025] As attached Figure 1 To the attached Figure 5 As shown:

[0026] The utility model provides a piston ring overlapping piston, including a piston body 10, a piston head 20 is provided at one end of the piston body 10, two sets of fastening blocks 202 are provided at one end of the piston head 20, multiple sets of fastening columns 203 are provided on the top of the two sets of fastening blocks 202, multiple sets of fastening columns 203 are sleeved with multiple sets of friction sleeves 204, the friction sleeves 204 can increase the friction force, so that the connection between the piston half ring 205 and the piston head 20 is tighter and not easy to loosen, two sets of piston half rings 205 are respectively provided at one end of the multiple sets of friction sleeves 204, the piston half ring 205 can prevent fuel gas from entering the piston, and multiple sets of piston half rings 205 are provided at one end. There are two sets of multi-stage pressure relief grooves 206, and multiple sets of multi-stage pressure relief plates 207 are staggered in the two sets of multi-stage pressure relief grooves 206. A piston ring body 101 is clamped on the piston body 10, and multiple sets of arc-shaped pressure relief grooves 110 are opened at one end of the piston ring body 101. Two sets of second air channels 215 connected to the multi-stage pressure relief grooves 206 are opened on the inner walls of the two sets of piston half rings 205. Four sets of first air channels 214 are opened at one end of the piston body 10, and one end of the four sets of first air channels 214 corresponds to the four sets of second air channels 215 respectively. The two sets of piston half rings 205 are provided with a piston ring 208 at the end away from the piston body 10. The piston ring 208 can further prevent the fuel gas from entering the piston.

[0027] When the piston is working, the generated air pressure enters the second air channel 215 through the first air channel 214, and is then discharged through the second air channel 215. When discharged from the second air channel 215, the pressure is relieved by the cooperation of the multi-stage pressure relief plate 207 and the multi-stage pressure relief groove 206. If the generated air pressure enters from the second air channel 215, it will be relieved by the multi-stage pressure relief plate 207 and the multi-stage pressure relief groove 206 before entering the second air channel 215, and then enter the second air channel 215 and be discharged through the first air channel 214, thereby reducing the air pressure to which the piston is subjected when working, and pressure relief can also be achieved through the setting of the arc-shaped pressure relief groove 110.

[0028] The inner wall of the piston ring body 101 is serrated, and a serrated groove 109 is provided on the surface of the piston body 10. The piston half ring 205 is clamped in the serrated groove 109, so that the connection between the piston ring body 101 and the piston body 10 is tighter. The piston ring body 101 can prevent the engine oil from flowing into the combustion chamber. Multiple groups of arc-shaped pressure relief grooves 110 are arranged in a ring shape at the end of the piston ring body 101 away from the piston end head 20.

[0029] Two groups of grooves are provided on the surface of the piston end head 20, and multiple groups of springs 201 are provided in the two groups of grooves. Fastening blocks 202 are provided on the tops of the multiple groups of springs 201. Multiple groups of grooves are provided on the inner walls of the two groups of piston half rings 205 respectively. Multiple groups of fastening columns 203 and the two groups of fastening blocks 202 are all clamped in the grooves. One end of the multiple groups of springs 201 is connected to the two groups of piston half rings 205 respectively, and the other end of the multiple groups of springs 201 is connected to the two groups of fastening blocks 202 respectively. When the user installs the piston half ring 205, the piston half ring 205 presses the fastening block 202 down, and the fastening block 202 and the fastening column 203 are clamped into the piston half ring 205, so that the connection between the piston half ring 205 and the piston end head 20 is tighter, preventing fuel gas from entering the piston.

[0030] Among them, see Figures 2 to 5 As shown, one end of the two groups of piston half rings 205 is penetrated by multiple groups of sockets, and two groups of special-shaped pins 209 are respectively penetrated in the multiple sockets. One end of the two groups of special-shaped pins 209 is respectively provided with four groups of special-shaped fixing covers 211, and the special-shaped fixing covers 211 can be connected to the special-shaped pins 209. One end of the four groups of special-shaped fixing covers 211 and the two groups of special-shaped pins 209 is provided with a gasket 210. One end of the two groups of special-shaped fixing covers 211 is provided with an anti-skid column 212. The anti-skid column 212 An anti-slip groove is provided on the top to prevent the user from slipping. A first disassembly hole 213 is provided on one side of the two groups of special-shaped pins 209. A connecting ring 102 is provided at one end of the piston body 10 and the piston end head 20. The same group of annular pins 103 are passed through the two groups of connecting rings 102. An annular fixing cover 104 is provided at one end of the annular pin 103. The annular pin 103 can be connected to the annular fixing cover 104. Second disassembly holes 105 are provided on both sides of the annular pin 103.

[0031] The piston body 10 and the piston end head 20 bracket are provided with multiple groups of connecting blocks 106, and a slot adapted to the connecting block 106 is opened at one end of the piston end head 20, so that the connecting block 106 can be snapped into the piston end head 20, and one end of the multiple groups of connecting blocks 106 are welded to the piston body 10, and the other end of the multiple groups of connecting blocks 106 are provided with connecting magnets 107, and one end of the multiple groups of connecting magnets 107 are provided with metal sheets 108. When the user snaps the piston body 10 into the piston end head 20, the connecting magnets 107 and the metal sheets 108 are magnetically connected, thereby connecting the piston body 10 and the piston end head 20.

[0032] When the user disassembles and assembles the piston, the user can insert the special-shaped pin 209 into the two groups of piston half rings 205, and then connect the special-shaped fixing cover 211 with the special-shaped pin 209. The gasket 210 can prevent the special-shaped pin 209 from directly contacting the piston half ring 205, thereby avoiding damage to the surface of the piston half ring 205 by the special-shaped pin 209. At the same time, the user can also pinch the anti-skid column 212 to pull the special-shaped fixing cover 211 outward, thereby separating the special-shaped fixing cover 211 from the special-shaped pin 209. Through the above steps, the two groups of piston half rings 205 are fixed on the piston end head 20. When disassembly is required, the external tool is inserted into the first disassembly hole 213, and then the special-shaped pin 209 is pulled out of the special-shaped fixing cover 211. The type fixing cover 211 can remove and separate the two sets of piston half rings 205, and insert the connecting block 106 at one end of the piston body 10 into the piston end 20, so that the connecting magnet 107 and the metal sheet 108 are magnetically connected, so that the piston body 10 and the piston end 20 are connected for the first time, and the annular pin 103 is inserted into the two sets of connecting rings 102, and then the annular fixing cover 104 is connected with the annular pin 103, so that the piston body 10 and the piston end 20 are fixed. When disassembly is required, the piston body 10 and the piston end 20 can be separated by inserting an external tool into the first disassembly hole 213 and pulling the annular pin 103 out of the annular fixing cover 104, which makes disassembly and assembly more convenient.

[0033] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A piston with overlapping piston rings, characterized in that: The utility model comprises a piston body (10), wherein one end of the piston body (10) is provided with a piston end head (20), and one end of the piston end head (20) is provided with two groups of fastening blocks (202), and the tops of the two groups of fastening blocks (202) are provided with multiple groups of fastening columns (203), and multiple groups of friction sleeves (204) are sleeved on the multiple groups of fastening columns (203), and one end of the multiple groups of friction sleeves (204) is respectively provided with two groups of piston half rings (205), and one end of the two groups of piston half rings (205) is provided with multi-stage pressure relief grooves (206), and multiple groups of multi-stage pressure relief plates (207) are staggeredly provided in the two groups of multi-stage pressure relief grooves (206), and a piston ring body (101) is clamped on the piston body (10), and one end of the piston ring body (101) is provided with multiple groups of arc pressure relief grooves (110).

2. The piston ring overlapping type piston according to claim 1, characterized in that: The inner walls of the two groups of piston half rings (205) are each provided with two groups of second air channels (215) connected to the multi-stage pressure relief grooves (206); one end of the piston body (10) is provided with four groups of first air channels (214); one end of the four groups of first air channels (214) respectively corresponds to the four groups of second air channels (215); and the ends of the two groups of piston half rings (205) away from the piston body (10) are both provided with piston rings (208).

3. The piston ring overlapping type piston according to claim 1, characterized in that: The inner wall of the piston ring body (101) is serrated, and a serrated groove (109) is provided on the surface of the piston body (10). The piston half ring (205) is clamped in the serrated groove (109), and multiple groups of arc-shaped pressure relief grooves (110) are arranged in an annular shape at one end of the piston ring body (101) away from the piston end head (20).

4. The piston ring overlapping type piston according to claim 1, characterized in that: Two groups of grooves are provided on the surface of the piston end (20), multiple groups of springs (201) are provided in the two groups of grooves, the tops of the multiple groups of springs (201) are provided with the fastening blocks (202), and the inner walls of the two groups of piston half rings (205) are respectively provided with multiple groups of grooves, and the multiple groups of fastening columns (203) and the two groups of fastening blocks (202) are all clamped in the grooves.

5. The piston ring overlapping type piston according to claim 1, characterized in that: Multiple groups of jacks are provided through one end of the two groups of piston half rings (205), two groups of special-shaped plugs (209) are respectively passed through the multiple groups of jacks, four groups of special-shaped fixing covers (211) are respectively provided at one end of the two groups of special-shaped plugs (209), gaskets (210) are provided on the four groups of special-shaped fixing covers (211) and one end of the two groups of special-shaped plugs (209), anti-skid columns (212) are provided at one end of the two groups of special-shaped fixing covers (211), and a first disassembly hole (213) is provided through one side of the two groups of special-shaped plugs (209).

6. The piston ring overlapping type piston according to claim 1, characterized in that: The piston body (10) and one end of the piston end head (20) are both provided with a connecting ring (102), and the same group of annular pins (103) are passed through the two groups of connecting rings (102). An annular fixing cover (104) is provided at one end of the annular pin (103), and second disassembly holes (105) are opened on both sides of the annular pin (103).

7. The piston ring overlapping type piston according to claim 1, characterized in that: The piston body (10) and the piston end head (20) bracket are provided with multiple groups of connecting blocks (106), one end of each of the multiple groups of connecting blocks (106) is welded to the piston body (10), the other end of each of the multiple groups of connecting blocks (106) is provided with a connecting magnet (107), and one end of each of the multiple groups of connecting magnets (107) is provided with a metal sheet (108).

8. The piston ring overlapping type piston according to claim 4, characterized in that: One end of the plurality of groups of springs (201) is respectively connected to the two groups of piston half rings (205), and the other end of the plurality of groups of springs (201) is respectively connected to the two groups of fastening blocks (202).

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