Stacked sealing leakage-proof piston ring

Abstract

The utility model discloses a stacked sealing leakproof piston ring, belongs to the technical field of piston rings, and aims to solve the problems of poor assembly stability and lack of limitation after assembly and use, the stacked sealing leakproof piston ring comprises a first ring body, a second ring body and a third ring body, the first ring body comprises a wing ring body and a main ring body, the wing ring body is fixedly connected to the outer side of the bottom of the main ring body, and the third ring body is fixedly connected to the outer side of the bottom of the main ring body. A first limiting groove is formed in the upper portion of the wing ring body, an anti-skid groove is formed in the surface of the outer side of the main ring body, the second ring body is arranged on the upper portion of the wing ring body and arranged on the outer side of the main ring body, and a limiting block is arranged on the second ring body. According to the piston ring, the first ring body, the second ring body and the third ring body are arranged and are matched through the limiting blocks and the anti-skid blocks, so that after the piston ring is assembled, the stability of the piston ring can be ensured, the ring bodies can be effectively prevented from moving during use, and the service life of the piston ring is prolonged. And therefore, the sealing performance and the leakage-proof performance in the assembling and using processes are further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to piston ring technical field, concretely relates to a stack type sealing leakproof piston ring. BACKGROUND

[0002] The piston compressor is a kind of compressor that relies on the reciprocating movement of piston to make gas pressurization and transport gas, belongs to volumetric compressor, also called "reciprocating piston compressor" or "reciprocating compressor", mainly by working chamber, transmission component, machine body and auxiliary component are composed, working chamber is directly used to compress gas, by cylinder, cylinder sleeve, air valve, packing, piston and piston rod are composed.Piston reciprocating internal combustion engine has greatly improved its performance index after more than a century of development, and so far the thermal efficiency of internal combustion engine has reached about 40%, but there is still about 60% heat loss.At present, energy saving and emission reduction is still the top priority of all countries in the world, and piston ring is one of the key components that affect the sealing performance of internal combustion engine.

[0003] Piston, piston ring works in high temperature, high pressure, high speed in cylinder, its working condition is very bad, improving the sealing performance of piston ring and reducing the friction loss of moving pair is an important direction of effort, among them, reducing the number of piston ring, improving the opening structure shape of piston ring, changing the structure profile of the contact surface of piston ring and cylinder sleeve, piston, improving the material, process, lightweight of piston, piston ring, cylinder sleeve, reducing the pressure of piston ring to the inner wall of cylinder, etc.are all effective methods to reduce friction resistance and reduce wear.

[0004] The prior art patent No. CN214366621U, a combination type piston ring, the above-mentioned patent includes outer ring group and inner ring group, wherein the outer ring group is composed of ring one, ring two and ring three, the inner ring group is composed of elastic rubber ring;Ring one, ring two and ring three are all provided with three oblique notches, and the positions of the oblique notches of the three rings are staggered;Ring two is a T-shaped integrated structure composed of a main ring body and a fin ring body;Ring one, ring two and ring three are connected by fixing pins;It not only retains the larger self-lubricating wear allowance of thick non-metallic piston ring, but also has more elasticity than the whole non-metallic piston ring;The inner ring group can tighten the outer ring group to achieve good sealing effect;The fixing pins can make the assembly more simple and accurate, reduce the assembly difficulty, improve the assembly efficiency of the piston assembly and save labor cost, but there are still the following deficiencies in actual use: starting from reality, the patent cannot be stably assembled when the piston ring is assembled and used, and lacks limiting work for the corresponding ring body after assembly, which easily moves during use and affects the sealing performance.

[0005] Therefore, a stack type sealing leakproof piston ring is needed to solve the problems of poor assembly stability and lack of limiting work after assembly in the prior art. The utility model discloses a content

[0006] The utility model discloses a purpose at providing a kind of stacked sealing leakproof piston ring to solve the problem raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of stacked sealing leakproof piston ring, including first ring body, second ring body and third ring body, the first ring body includes fin ring body and main ring body, the fin ring body is fixedly connected to the bottom outer side of main ring body, first limit slot is provided on the upper portion of fin ring body, the outer surface of main ring body is provided with anti-skid groove, the second ring body is located on the upper portion of fin ring body and is located on the outer side of main ring body, limit block is arranged on the second ring body, the limit block is matched with first limit slot, the third ring body is located on the upper portion of second ring body and is located on the outer side of main ring body, anti-skid block is provided on the inner side surface of third ring body corresponding to anti-skid groove, second limit slot is provided on the bottom of third ring body and matched with limit block.

[0008] It needs to be explained in the scheme that the first limit slot is evenly provided with a plurality of on the upper portion of fin ring body, the first limit slot is provided as concave groove arc surface, the anti-skid groove is evenly provided with a plurality of on the outer surface of main ring body, the anti-skid groove is provided between first limit slot through main ring body, and the anti-skid groove is provided as concave groove arc surface.

[0009] It is further worth mentioning that the limit block is matched with first limit slot on the second ring body, the limit block is protrudedly arranged on the upper and lower surface of second ring body, and the limit block is provided as arc surface.

[0010] It needs to be further explained that the anti-skid block is provided as protruding arc surface on the inner side surface of third ring body, the anti-skid block is matched with a plurality of anti-skid grooves, and the second limit slot is matched with limit block.

[0011] As a preferred embodiment, the height of the upper mesa of the main ring body and the height of the upper plane of the third ring body are horizontally arranged.

[0012] Compared with the prior art, the stacked sealing leakproof piston ring provided by the utility model has at least the following beneficial effects:

[0013] (1) By setting the first ring body, the second ring body and the third ring body, the limit block and the anti-skid block are matched, after assembly, the stability of the piston ring can be ensured, and the movement of each ring body can be effectively prevented during use, thereby further improving the sealing performance and leakproof performance during assembly and use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the assembly structure schematic view of the utility model;

[0015] Figure 2 The figure is a split structure schematic diagram of the utility model;

[0016] Figure 3 The figure is a second ring body structure schematic diagram of the utility model;

[0017] Figure 4 The figure is a first ring body and third ring body structure schematic diagram of the utility model.

[0018] In the figure: 10, first ring body; 101, fin ring body; 102, main ring body; 103, first limiting groove; 104, anti-skid groove; 20, second ring body; 201, limiting block; 30, third ring body; 301, anti-skid block; 302, second limiting groove. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be further described below in combination with examples:

[0020] In the description of the utility model, it needs to be explained that unless there is explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through intermediate medium. The above terms in the utility model can be understood in specific meaning according to specific circumstances for ordinary skilled person in the art.

[0021] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0022] Please refer to Figures 1-4The utility model provides a kind of stack type sealing leakproof piston ring, including first ring body 10, second ring body 20 and third ring body 30, first ring body 10 includes fin ring body 101 and main ring body 102, fin ring body 101 is fixedly connected to the bottom outside of main ring body 102, for providing additional support and limiting effect, first limiting groove 103 is provided on the upper portion of fin ring body 101, for matching with the limiting block 201 on second ring body 20, realize preliminary limiting and assembly stability, anti-skid groove 104 is provided on the outside surface of main ring body 102, these anti-skid grooves are also recessed arc surface settings, for matching with the anti-skid block 301 of third ring body 30 inside, further improve the stability and sealing property after assembly, second ring body 20 is located on the upper portion of fin ring body 101 and is located on the outside of main ring body 102, limiting block 201 is provided on second ring body 20, limiting block 201 is matched with first limiting groove 103, third ring body 30 is located on the upper portion of second ring body 20 and is located on the outside of main ring body 102, these limiting blocks 201 are protrudingly arranged on the upper and lower surfaces of second ring body 20, and are arc surfaces, to ensure the close cooperation with first limiting groove 103, in this way, second ring body 20 can be stably assembled on first ring body 10, and provide support and limit for third ring body 30 above it, anti-skid block 301 is provided on the inside surface of third ring body 30 corresponding to anti-skid groove 104, second limiting groove 302 is provided on the bottom of third ring body 30 and matched with limiting block 201.

[0023] Further as shown in Figure 2 and Figure 4 It is worth noting that first limiting groove 103 is evenly provided with a plurality of first limiting grooves on the upper portion of fin ring body 101, first limiting groove 103 is recessed arc surface settings, anti-skid groove 104 is evenly provided with a plurality of anti-skid grooves on the outside surface of main ring body 102, anti-skid groove 104 is arranged between first limiting groove 103 through main ring body 102, anti-skid groove 104 is recessed arc surface settings, for matching with the anti-skid block 301 of third ring body 30 inside, further improve the stability and sealing property after assembly.

[0024] Further as shown in Figure 2 and Figure 3 It is worth noting that limiting block 201 is matched with first limiting groove 103 on second ring body 20, limiting block 201 is protrudingly arranged on the upper and lower surfaces of second ring body 20, and limiting block 201 is arc surface settings, these limiting blocks 201 are protrudingly arranged on the upper and lower surfaces of second ring body 20, and are arc surfaces, to ensure the close cooperation with first limiting groove 103, in this way, second ring body 20 can be stably assembled on first ring body 10, and provide support and limit for third ring body 30 above it.

[0025] Further as shown in Figure 2 and Figure 4As shown, it is worth noting that the anti-skid block 301 is arranged on the inner side surface of the third ring body 30 in a convex arc shape, and the anti-skid block 301 is matched with the anti-skid groove 104, and a plurality of second limiting grooves 302 are matched with the limiting blocks 201, so that the third ring body 30 can be kept stable after assembly, and the sealing and leakage prevention of the piston ring are further improved through the cooperation of the anti-skid block 301 and the anti-skid groove 104.

[0026] Further as Figure 2 and Figure 4 As shown, it is worth noting that the anti-skid block 301 is arranged on the inner side surface of the third ring body 30 in a convex arc shape, and the anti-skid block 301 is matched with the anti-skid groove 104, and a plurality of second limiting grooves 302 are matched with the limiting blocks 201, so that the third ring body 30 can be kept stable after assembly, and the sealing and leakage prevention of the piston ring are further improved through the cooperation of the anti-skid block 301 and the anti-skid groove 104.

[0027] The scheme has the following working process: when the device is used, the first ring body 10, the second ring body 20 and the third ring body 30 are assembled, at this time, the limiting block 201 matches the first limiting groove 103 and the second limiting groove 302, so that the second ring body 20 can be stably assembled between the fin ring body 101 and the third ring body 30, and the anti-skid block 301 matches the anti-skid groove 104, so that the third ring body 30 can be limited on the outer side of the main ring body 102 after assembly, and the second limiting groove 302 is limited on the limiting block 201, which further improves the limiting stability of the third ring body 30 after assembly, and improves the stability of the piston ring, so that the sealing property of the piston ring during installation and use is ensured.

[0028] In summary: through the cooperation of the limiting block 201 and the anti-skid block 301 between the first ring body 10, the second ring body 20 and the third ring body 30, the stability of the piston ring can be ensured after assembly, and the movement of each ring body can be effectively prevented during use, so that the sealing and leakage prevention of the piston ring during assembly and use are further improved.

[0029] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A stacked seal leakage prevention piston ring characterized by: The utility model provides a kind of ring body, including first ring body (10), second ring body (20) and third ring body (30), the first ring body (10) includes wing ring body (101) and main ring body (102), the wing ring body (101) is fixedly connected to main ring body (102) bottom outside, first limiting slot (103) is provided on the upper portion of wing ring body (101), the outer surface of main ring body (102) is provided with anti-skid groove (104), the second ring body (20) is located on the upper portion of wing ring body (101) and is located on the outside of main ring body (102), limiting block (201) is provided on the second ring body (20), limiting block (201) is matched with first limiting slot (103), the third ring body (30) is located on the upper portion of second ring body (20) and is located on the outside of main ring body (102), anti-skid block (301) is provided on the inner side surface of third ring body (30) corresponding anti-skid groove (104), second limiting slot (302) is provided on the bottom of third ring body (30) and is matched with limiting block (201).

2. A stacked seal piston ring according to claim 1, characterized in that: The first limiting slot (103) is evenly provided with a plurality of on the upper portion of wing ring body (101), the first limiting slot (103) is provided as concave groove arc surface, the anti-skid groove (104) is evenly provided with a plurality of on the outer surface of main ring body (102), the anti-skid groove (104) is provided between first limiting slot (103) by main ring body (102), the anti-skid groove (104) is provided as concave groove arc surface.

3. A stack sealed leakproof piston ring according to claim 2, characterized in that: The limiting block (201) is matched with first limiting slot (103) on the second ring body (20), the limiting block (201) is protruded on the upper and lower surface of second ring body (20), the limiting block (201) is provided as arc surface.

4. A stack sealed leakproof piston ring according to claim 3, characterized in that: The anti-skid block (301) is provided as protruding arc surface on the inner side surface of third ring body (30), the anti-skid block (301) is matched with anti-skid groove (104) and is provided with a plurality of, the second limiting slot (302) is matched with limiting block (201).

5. A stack sealed leakproof piston ring according to claim 4, characterized in that: The height of the upper mesa of main ring body (102) and the height of the upper plane of third ring body (30) are horizontally arranged.

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