Air cylinder piston structure

Abstract

The utility model discloses an air cylinder piston structure, which relates to the technical field of piston compressors and comprises an air cylinder barrel, one end of the air cylinder barrel is movably clamped with a first side end cover, the center of the first side end cover is movably clamped with a piston rod, and one end of the piston rod is movably sleeved with a piston. A first clamping groove is formed in the middle of the outer side of the piston, a limiting round hole is formed in the first clamping groove, a wear-resisting ring is movably clamped in the first clamping groove, and a limiting protrusion is fixedly connected to the inner side of the wear-resisting ring. According to the wear-resistant ring disclosed by the utility model, the limiting bulge is clamped in the limiting round hole, so that the wear-resistant ring can be clamped in the first clamping groove by virtue of the limiting bulge, and the wear-resistant ring does not need to be fixed by a worker with fingers; therefore, the condition that fingers of a worker pressing the notch of the wear-resistant ring are extruded by the piston and the air cylinder when pushing the piston into the air cylinder is avoided, and the efficiency and comfort of the worker for installing and maintaining the air cylinder are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston compressors, in particular to a cylinder piston structure. Background Art

[0002] A piston compressor is a device that relies on the reciprocating motion of a piston to increase gas pressure and transport gas. It is a positive displacement compressor. The main components of this machine include a working chamber, a transmission component, a fuselage, and various auxiliary components. Simply put, when the crankshaft of a piston compressor rotates one circle, the piston reciprocates once, and the cylinder realizes the process of intake, compression, and exhaust in sequence, that is, a working cycle is completed. The cylinder piston structure is an important part of the piston compressor.

[0003] For example, the impeller cylinder piston structure disclosed in Chinese patent number CN217129727U includes an impeller piston, a piston rod, a crankshaft, a cylinder seat and a valve group. A slot is provided at one end of the second connecting rod, and the slot is matched with the impeller piston. A pin hole seat is fixedly provided at the other end of the first connecting rod, and the pin hole seat is matched with one end of the crankshaft. The impeller piston consists of a driving motor and a fan blade. A connecting rod is fixedly provided at the output end of the driving motor, and one end of the connecting rod is fixedly connected to the fan blade through a bearing.

[0004] The existing cylinder piston structure requires a wear-resistant ring to be installed in the middle of the piston, but the existing wear-resistant ring is often cut in the middle to become an arc-shaped long strip, which requires workers to press the cut of the wear-resistant ring with their fingers during the installation of the piston so that the wear-resistant ring fits tightly against the inside of the installation groove on the piston. The worker's fingers pressing on the cut of the wear-resistant ring will be squeezed by the piston and the cylinder when pushing the piston into the cylinder, which makes the worker have an uncomfortable installation experience and affects the worker's efficiency in assembling or repairing the cylinder. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing cylinder piston structure in the prior art needs to install a wear-resistant ring in the middle of the piston, but the existing wear-resistant ring is often cut in the middle to become an arc-shaped long strip, which causes the worker to press the cut of the wear-resistant ring with his fingers during the installation of the piston so that the wear-resistant ring is tightly attached to the inside of the installation groove on the piston, and the worker's fingers pressing on the cut of the wear-resistant ring will be squeezed by the piston and the cylinder when pushing the piston into the cylinder, which makes the worker have an uncomfortable installation experience and affects the worker's efficiency in assembling or repairing the cylinder. A cylinder piston structure is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cylinder piston structure, including a cylinder barrel, one end of the cylinder barrel is movably connected with a side end cover No. 1, the center of the side end cover No. 1 is movably connected with a piston rod, one end of the piston rod is movably sleeved with a piston, a No. 1 slot is provided in the middle of the outer side of the piston, a limiting circular hole is provided inside the No. 1 slot, a wear-resistant ring is movably connected inside the No. 1 slot, the inner side of the wear-resistant ring is fixedly connected with a limiting protrusion, and the limiting protrusion is movably connected to the inside of the limiting circular hole.

[0007] Preferably, four corners of one side of the No. 1 side end cover are movably connected with pull rods, and one end of the pull rod is movably connected with the No. 2 side end cover.

[0008] Preferably, both ends of the piston are provided with mounting slots, and buffer rubber pads are movably connected inside the two mounting slots.

[0009] Preferably, a No. 1 air inlet is provided on one side of the No. 1 side end cover, and one end of the No. 1 air inlet is fixedly connected to an air duct.

[0010] Preferably, a No. 2 air inlet is opened on one side of the No. 2 side end cover, and one end of the No. 2 air inlet is fixedly connected to an air inlet assembly.

[0011] Preferably, one end of the air guide pipe is fixedly connected to one side of the air intake assembly.

[0012] Preferably, a third air inlet and a fourth air inlet are respectively provided on one side of the air inlet assembly.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the limit protrusion is clamped inside the limit circular hole, so that the wear-resistant ring can be clamped inside the No. 1 clamping groove by relying on the limit protrusion, and the worker does not need to fix the wear-resistant ring with his fingers, thereby avoiding the situation where the worker's fingers pressing the cutout of the wear-resistant ring are squeezed by the piston and the cylinder when pushing the piston into the cylinder, thereby improving the efficiency and comfort of workers in installing and repairing the cylinder.

[0015] 2. In the utility model, through the cooperation between the air guide pipe and the air intake assembly, the worker only needs to fix the two air intake pipes to one side of the air intake assembly to drive the piston to reciprocate inside the cylinder barrel. The worker then fixes the two air intake pipes with the same set of pipe fixing clips, thereby facilitating the worker to fix the air intake pipes and reducing the use of fixing clips for fixing the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural diagram of a cylinder piston structure is proposed for the utility model;

[0017] Figure 2 The utility model provides a schematic diagram of the connection relationship between the first side end cover, the second side end cover and the cylinder barrel in a cylinder piston structure;

[0018] Figure 3 A schematic diagram of the connection relationship between a piston rod and a piston in a cylinder piston structure is provided for the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the connection relationship between the piston and the buffer rubber pad in a cylinder piston structure;

[0020] Figure 5 A three-dimensional structural diagram of a piston in a cylinder piston structure is proposed for the utility model;

[0021] Figure 6 The utility model provides a three-dimensional structural schematic diagram of a wear-resistant ring in a cylinder piston structure.

[0022] Legend: 1. Cylinder barrel; 11. Side end cover No. 1; 111. Air inlet No. 1; 112. Air guide tube; 12. Pull rod; 13. Side end cover No. 2; 131. Air inlet No. 2; 14. Air inlet assembly; 141. Air inlet No. 3; 142. Air inlet No. 4; 2. Piston rod; 3. Piston; 31. Slot No. 1; 311. Limiting circular hole; 32. Wear-resistant ring; 321. Limiting protrusion; 33. Mounting slot; 331. Buffer rubber pad. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Embodiment 1

[0025] like Figure 1-6As shown, the utility model provides a cylinder piston structure, including a cylinder barrel 1, one end of the cylinder barrel 1 is movably connected with a side end cover 11, the center of the side end cover 11 is movably connected with a piston rod 2, one end of the piston rod 2 is movably sleeved with a piston 3, a middle part of the outer side of the piston 3 is provided with a slot 31, a limiting circular hole 311 is provided inside the slot 31, a wear-resistant ring 32 is movably connected inside the slot 31, a limiting protrusion 321 is fixedly connected to the inner side of the wear-resistant ring 32, the limiting protrusion 321 is movably connected to the inside of the limiting circular hole 311, both ends of the piston 3 are provided with mounting slots 33, and buffer rubber pads 331 are movably connected inside the two mounting slots 33.

[0026] The specific settings and functions of this embodiment are described in detail below. When the worker assembles the piston 3, the limiting protrusion 321 on the wear-resistant ring 32 is aligned with the limiting circular hole 311, so that the wear-resistant ring 32 is clamped inside the No. 1 clamping groove 31, and then the piston 3 is movably sleeved on the outside of one end of the piston rod 2, and the fixing bolt is rotated to complete the fixation of the piston 3, and the piston 3 and the piston rod 2 are sent into the interior of the cylinder barrel 1, and the No. 1 side end cover 11 and the No. 2 side end cover 13 are installed on both ends of the cylinder barrel 1 in turn to complete the preliminary installation of the cylinder. In the above installation steps, the worker does not need to use his fingers to fix the wear-resistant ring 32, thereby avoiding the situation where the worker's fingers pressing the cutout of the wear-resistant ring 32 are squeezed by the piston 3 and the cylinder when pushing the piston 3 into the cylinder, thereby improving the efficiency and comfort of the worker in installing and repairing the cylinder. In addition, since the buffer rubber pads 331 are clamped at both ends of the piston 3, when the piston 3 reciprocates inside the cylinder barrel 1, the impact force on the piston 3 can be reduced to protect the piston 3. Embodiment 2

[0027] like Figure 1 and Figure 2 As shown, the four corners of one side of the No. 1 side end cover 11 are movably connected with a pull rod 12, and one end of the pull rod 12 is movably connected with the No. 2 side end cover 13. One side of the No. 1 side end cover 11 is provided with a No. 1 air inlet 111, and one end of the No. 1 air inlet 111 is fixedly connected with an air guide pipe 112. One side of the No. 2 side end cover 13 is provided with a No. 2 air inlet 131, and one end of the No. 2 air inlet 131 is fixedly connected with an air intake assembly 14. One end of the air guide pipe 112 is fixedly connected to one side of the air intake assembly 14, and one side of the air intake assembly 14 is respectively provided with a No. 3 air inlet 141 and a No. 4 air inlet 142.

[0028] The effect achieved by the entire embodiment is that the worker first fixes one side of the air intake assembly 14 on one side of the No. 2 air intake port 131, so that the No. 2 air intake port 131 and the No. 4 air intake port 142 are connected to each other, and then one end of the air guide pipe 112 is fixedly installed on one end of the No. 1 air intake port 111, and then the other end of the air guide pipe 112 is fixedly installed on the upper end of the air intake assembly 14, so that the No. 1 air intake port 111 and the No. 3 air intake port 141 are connected to each other. The worker only needs to fix the two air intake pipes together. Through one side of the air intake assembly 14, the compressed gas can enter the interior of the No. 1 air intake 111 through the No. 3 air intake 141, and enter the interior of the No. 2 air intake 131 through the No. 4 air intake 142. Finally, the compressed gas enters the interior of the cylinder barrel 1, thereby driving the piston 3 to reciprocate inside the cylinder barrel 1. The workers then fix the two air intake pipes with the same set of pipe fixing clips, which makes it easier for the workers to fix the air intake pipes and reduces the use of fixing clips for fixing the pipes.

[0029] The use method and working principle of the device are as follows: when the worker assembles the piston 3, the limiting protrusion 321 on the wear-resistant ring 32 is aligned with the limiting circular hole 311, so that the wear-resistant ring 32 is clamped inside the No. 1 clamping groove 31, and then the piston 3 is movably sleeved on the outside of one end of the piston rod 2, and the fixing bolt is rotated to complete the fixation of the piston 3, and the piston 3 and the piston rod 2 are sent into the interior of the cylinder barrel 1, and the No. 1 side end cover 11 and the No. 2 side end cover 13 are installed on both ends of the cylinder barrel 1 in turn. The worker first fixes one side of the air intake assembly 14 on one side of the No. 2 air inlet 131, so that the No. 2 air inlet 131 is connected to the No. 4 air inlet 142, and then one end of the air guide pipe 112 is fixedly installed on the No. 1 air inlet One end of the air guide pipe 111 is fixedly installed on the upper end of the air intake assembly 14, and the other end of the air guide pipe 112 is fixedly installed on the upper end of the air intake assembly 14, so that the No. 1 air intake port 111 and the No. 3 air intake port 141 are connected to each other. The worker only needs to fix the two air intake pipes on one side of the air intake assembly 14, and the compressed gas can enter the No. 1 air intake port 111 through the No. 3 air intake port 141, and enter the No. 2 air intake port 131 through the No. 4 air intake port 142, and finally the compressed gas enters the cylinder barrel 1, thereby driving the piston 3 to reciprocate in the cylinder barrel 1. The worker then fixes the two air intake pipes with the same set of pipe fixing clips, which is convenient for the workers to fix the air intake pipes and reduces the use of fixing clips for fixing the pipes.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A cylinder piston structure, comprising a cylinder barrel (1), characterized in that: One end of the cylinder barrel (1) is movably connected to a side end cover (11), a piston rod (2) is movably connected to the center of the side end cover (11), one end of the piston rod (2) is movably sleeved to a piston (3), a first clamping groove (31) is provided in the middle of the outer side of the piston (3), a limiting circular hole (311) is provided inside the first clamping groove (31), a wear-resistant ring (32) is movably connected inside the first clamping groove (31), a limiting protrusion (321) is fixedly connected to the inner side of the wear-resistant ring (32), and the limiting protrusion (321) is movably connected to the inside of the limiting circular hole (311).

2. A cylinder piston structure according to claim 1, characterized in that: Four corners of one side of the first side end cover (11) are movably connected to pull rods (12), and one end of the pull rod (12) is movably connected to the second side end cover (13).

3. A cylinder-piston structure according to claim 1, characterized in that: Both ends of the piston (3) are provided with mounting slots (33), and buffer rubber pads (331) are movably engaged inside the two mounting slots (33).

4. A cylinder-piston structure according to claim 2, characterized in that: A first air inlet (111) is provided on one side of the first side end cover (11), and one end of the first air inlet (111) is fixedly connected to an air guide pipe (112).

5. A cylinder piston structure according to claim 4, characterized in that: A second air inlet (131) is provided on one side of the second side end cover (13), and one end of the second air inlet (131) is fixedly connected to an air inlet assembly (14).

6. A cylinder-piston structure according to claim 5, characterized in that: One end of the air guide pipe (112) is fixedly connected to one side of the air intake assembly (14).

7. A cylinder-piston structure according to claim 6, characterized in that: A third air inlet (141) and a fourth air inlet (142) are respectively provided on one side of the air inlet assembly (14).

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