Piston assembly of air compressor

Abstract

A piston assembly of an air compressor belongs to the technical field of pistons and comprises a piston head, a connecting shaft and a piston rod, the piston rod is connected with the piston head through the connecting shaft, the piston head is of a cylindrical structure, one end of the piston head is closed, the other end of the piston head is provided with an installation groove, and reinforcing seats are arranged in the installation groove and symmetrically located in the installation groove. Notches are formed in the two sides of the installation groove and correspond to the reinforcing bases, installation holes are formed in the piston head and penetrate through the reinforcing bases and the notches, the connecting shafts are installed in the installation holes, the notches and the reinforcing bases are arranged, the connecting shafts capable of being locked or locked can be installed, overall connection is convenient, the connection effect is good, and the piston can be used for an air compressor. Due to the special structure, the integral strength and the working stability are better, and the air compressor can reach a more stable working state.

Description

Technical Field

[0001] The utility model belongs to the technical field of pistons, and specifically relates to a piston assembly of an air compressor. Background Art

[0002] An air compressor is a device used to compress gas. The air compressor is similar in structure to a water pump. Most air compressors are reciprocating piston type, rotary vane or rotary screw.

[0003] The advantages of a piston-type air compressor are simple structure, long service life, and easy realization of large capacity and high-pressure output. The disadvantages are large vibration, high noise, and because the exhaust is intermittent, the output has pulses and a gas storage tank is required.

[0004] Due to the instability of compressed air in many piston-type air compressors, it is further transmitted to the piston, making the working state of the entire piston unstable. Therefore, a piston with a special structure is needed to meet the requirement of stable operation. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems raised in the above background.

[0006] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0007] A piston assembly of an air compressor of the utility model includes a piston head, a connecting shaft and a piston rod. The piston rod is connected to the piston head through the connecting shaft. The piston head is of a cylindrical structure. One end of the piston head is closed, and the other end is provided with an installation groove. An enhancing seat is arranged in the installation groove. The enhancing seats are symmetrically located in the installation groove. Cuts are provided on both sides of the installation groove, and the cuts correspond to the enhancing seats. Installation holes are provided on the piston head, and the installation holes penetrate through the enhancing seats and the cuts. The connecting shaft is installed in the installation holes.

[0008] Preferably, a strengthening structure is arranged on the inner wall of the installation groove of the piston head. One end of the strengthening structure is connected to the inner wall, and the other end is connected to the enhancing seat. The piston head, the strengthening structure and the enhancing seat are integrally formed.

[0009] Preferably, a first ring groove, a second ring groove and a third ring groove are arranged at one end of the piston head close to the closed end. The first ring groove, the second ring groove and the third ring groove are used for installing piston rings.

[0010] Preferably, a plurality of through holes are arranged in the third ring groove. The through holes communicate with the installation groove. The width of the third ring groove is greater than the widths of the first ring groove and the second ring groove. A raised piece is arranged in the third ring groove, and the raised piece protrudes from the inner bottom of the third ring groove along the third ring groove.

[0011] Preferably, an arc-shaped notch is provided at the port of the end of the piston head where the installation groove is located. The arc-shaped notch penetrates the piston head, and the bottom of the installation groove of the piston head is recessed towards the central axis of the installation groove. The recessed area corresponds to the first ring groove, the second ring groove, and the third ring groove on the piston head. Beneficial effects

[0012] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0013] A piston assembly of an air compressor according to the present utility model is provided with a notch and a reinforcing seat, and can install a connecting shaft that can be locked or fastened, making the overall connection convenient and having a good connection effect. It can be used in an air compressor. Due to its special structure, the overall strength and working stability are relatively good, enabling the air compressor to reach a more stable working state. Brief description of the drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a piston assembly of an air compressor according to the present utility model;

[0015] Figure 2 It is a schematic diagram of the piston head structure of a piston assembly of an air compressor according to the present utility model;

[0016] Figure 3 It is a schematic diagram of the third ring groove structure of a piston assembly of an air compressor according to the present utility model.

[0017] Explanation of the reference numerals in the schematic diagram:

[0018] 100, piston head; 110, installation groove; 120, reinforcing seat; 130, notch; 140, installation hole; 150, reinforcing structure; 160, first ring groove; 170, second ring groove; 180, third ring groove; 181, perforation; 182, raised piece; 190, arc-shaped notch;

[0019] 200, connecting shaft;

[0020] 300, piston rod. Detailed implementation manners

[0021] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0022] It should be noted that in the description and claims of this application and the above-mentioned drawings, terms such as "first" and "second" are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to implement the embodiments of the present application described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0023] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0024] Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0025] In addition, the terms "install", "set", "provided with", "connect", "connected", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with embodiments to detail this application. Embodiment 1

[0027] Refer to the attached Figures 1-3, A piston assembly of an air compressor in this embodiment includes a piston head 100, a connecting shaft 200, and a piston rod 300. The piston rod 300 is connected to the piston head 100 through the connecting shaft 200. The piston head 100 is of a cylindrical structure. One end of the piston head 100 is closed, and the other end is provided with an installation groove 110. A reinforcing seat 120 is arranged in the installation groove 110. The reinforcing seat 120 is symmetrically located in the installation groove 110. Cuts 130 are provided on both sides of the installation groove 110, and the cuts 130 correspond to the reinforcing seat 120. An installation hole 140 is provided on the piston head 100, and the installation hole 140 penetrates through the reinforcing seat 120 and the cuts 130. The connecting shaft 200 is installed in the installation hole 140. With the cuts 130 and the reinforcing seat 120, a connecting shaft 200 that can be locked or fastened can be installed, making the overall connection convenient and having a good connection effect.

[0028] On the inner wall of the installation groove 110 of the piston head 100 in this embodiment, a reinforcing structure 150 is provided. One end of the reinforcing structure 150 is connected to the inner wall, and the other end is connected to the reinforcing seat 120. The piston head 100, the reinforcing structure 150, and the reinforcing seat 120 are integrally formed. This designed structure improves the integrity and also strengthens the overall structure.

[0029] Near the closed end of the piston head 100 in this embodiment, a first ring groove 160, a second ring groove 170, and a third ring groove 180 are provided. The first ring groove 160, the second ring groove 170, and the third ring groove 180 are used for installing piston rings and are used for installing multiple piston rings.

[0030] In the third ring groove 180 of this embodiment, a plurality of through holes 181 are provided. The through holes 181 communicate with the installation groove 110. The width of the third ring groove 180 is greater than the widths of the first ring groove 160 and the second ring groove 170. A raised piece 182 is provided in the third ring groove 180, and the raised piece 182 protrudes from the inner bottom of the third ring groove 180 along the third ring groove 180.

[0031] At the port of the end of the piston head 100 where the installation groove 110 is provided in this embodiment, an arc-shaped notch 190 is provided. The arc-shaped notch 190 penetrates through the piston head 100. The bottom of the installation groove 110 of the piston head 100 is recessed towards the central axis of the installation groove, and the recessed area corresponds to the first ring groove 160, the second ring groove 170, and the third ring groove 180 on the piston head 100.

[0032] The piston head 100 designed in this way can be used in an air compressor. Due to its special structure, the overall strength and working stability are relatively good, enabling the air compressor to reach a more stable working state.

[0033] The above-described embodiments merely represent certain implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. An air compressor piston assembly, characterized in that: The invention comprises a piston head (100), a connecting shaft (200) and a piston rod (300), wherein the piston rod (300) is connected to the piston head (100) via the connecting shaft (200), the piston head (100) is a cylindrical structure, one end of the piston head (100) is closed, and the other end is provided with a mounting groove (110), a reinforcing seat (120) is provided in the mounting groove (110), the reinforcing seat (120) is symmetrically located in the mounting groove (110), and cutouts (130) are provided on both sides of the mounting groove (110), the cutouts (130) correspond to the reinforcing seat (120), the piston head (100) is provided with a mounting hole (140), the mounting hole (140) passes through the reinforcing seat (120) and the cutout (130), and the connecting shaft (200) is installed in the mounting hole (140).

2. An air compressor piston assembly according to claim 1, characterized in that: A reinforcing structure (150) is provided on the inner wall of the mounting groove (110) of the piston head (100); one end of the reinforcing structure (150) is connected to the inner wall, and the other end is connected to the reinforcing seat (120); the piston head (100), the reinforcing structure (150) and the reinforcing seat (120) are integrally formed.

3. An air compressor piston assembly according to claim 1, characterized in that: A first ring groove (160), a second ring groove (170) and a third ring groove (180) are provided at one end of the piston head (100) close to the closure, and the first ring groove (160), the second ring groove (170) and the third ring groove (180) are used for mounting piston rings.

4. An air compressor piston assembly according to claim 3, characterized in that: A plurality of through holes (181) are provided in the third annular groove (180), the through holes (181) being connected to the mounting groove (110), the width of the third annular groove (180) being greater than the widths of the first annular groove (160) and the second annular groove (170), and a protruding piece (182) is provided in the third annular groove (180), the protruding piece (182) protruding out of the third annular groove (180) along the inner bottom of the third annular groove (180).

5. An air compressor piston assembly according to claim 3, characterized in that: The piston head (100) is provided with an arc-shaped notch (190) at the port of one end of the mounting groove (110), the arc-shaped notch (190) passing through the piston head (100), and the bottom of the mounting groove (110) of the piston head (100) is provided with a depression toward the central axis of the mounting groove, and the depressed area corresponds to the first annular groove (160), the second annular groove (170), and the third annular groove (180) on the piston head (100).

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