CN204729260U - A kind of air compression plant be installed on air compressor - Google Patents

Abstract

The utility model provides an air compression device installed on an air compressor, which belongs to the technical field of air compression. It solves the problem of poor air compression efficiency and effect of the existing air compressor. The air compression device includes a cylinder, a piston and a piston rod installed in the cylinder. There are several air inlet holes on the upper end of the piston. Located in the annular protruding ring 1, the air intake diaphragm can seal or conduct the air intake hole, and there are several supporting protrusions 1 in the groove 1, and the support protrusions when the air intake diaphragm is sealed with the air intake hole One leans against the lower end surface of the intake diaphragm, and the inner cavity of the cylinder is also equipped with a diaphragm base. A compression chamber is formed between the diaphragm base and the upper end surface of the piston. The upper end of the diaphragm base has an air outlet connected to the compression chamber. An air outlet diaphragm capable of sealing or conducting the air outlet is installed on the upper end surface of the diaphragm base. The air compression device has the advantages of good compression effect.

Description

An air compression device mounted on an air compressor

technical field

The utility model belongs to the technical field of air compression, and relates to an air compression device installed on an air compressor.

Background technique

At present, there are many types of air compressors, such as piston compressors, rotary compressors, and vane compressors. Most of the air compressors use the reciprocating piston type. The compression principle is a piston that reciprocates in the cylinder to compress the air. The piston and cylinder structure adopts the existing common cylinder piston structure. The existing problems are: The existing common cylinder-piston structure has a poor sealing effect when the gas enters and exits, resulting in poor compression effect.

Contents of the invention

The purpose of this utility model is to solve the above-mentioned problems in the existing technology, and propose an air compression device installed on an air compressor to improve the sealing effect of the air inlet and outlet so as to improve the compression efficiency and effect.

The purpose of this utility model can be achieved through the following technical solutions: an air compression device installed on an air compressor, including a cylinder, a piston and a piston rod installed in the cylinder, and is characterized in that the upper end of the piston has several inlets The air hole, the upper end surface of the piston is provided with a groove 1, the groove 1 is provided with an annular convex ring 1, the above-mentioned air intake hole is located in the annular convex ring 1, and the annular convex ring 1 is covered with an air intake diaphragm, The air intake diaphragm can seal or communicate with the air intake hole, and the groove one is provided with several supporting protrusions one, and the above-mentioned air intake diaphragm is sealed with the air intake hole. The support projection one leans against the lower end surface of the intake diaphragm, and the inner cavity of the cylinder is also equipped with a diaphragm base, and a compression chamber is formed between the diaphragm base and the upper end surface of the piston, and the upper end of the diaphragm base There is an air outlet hole communicating with the compression chamber, and an air outlet diaphragm capable of sealing or conducting the air outlet hole is installed on the upper end surface of the diaphragm base.

In the above-mentioned air compression device installed on the air compressor, the first annular protruding ring is also provided with the second annular protruding ring, and the second annular protruding ring is located in the first annular protruding ring and is connected with the annular protruding ring There is an annular groove 1 between one of them, and the adjacent air inlet holes separate the annular protruding ring 2 to form the above-mentioned supporting protrusion 1 .

In the above-mentioned air compression device installed on the air compressor, the annular protruding ring 2 is also provided with the annular protruding ring 3, and the annular protruding ring 3 has a mounting hole, and the above-mentioned air intake diaphragm is screwed Installed on the mounting hole.

In the above-mentioned air compression device installed on the air compressor, a groove is formed on the outer wall of the upper end of the piston, and a piston ring is arranged in the groove.

In the above-mentioned air compression device installed on the air compressor, the upper end surface of the diaphragm base is provided with a groove 2, and the groove 2 is provided with an outer annular protruding ring and an inner annular protruding ring. The air outlet hole is located in the outer annular protruding ring, and the two adjacent air outlet holes cut off the above-mentioned inner annular protruding ring to form a supporting protrusion 2. When the air outlet diaphragm seals the air outlet hole, the supporting protrusion 2 leans against the air outlet diaphragm the lower end of the sheet.

Compared with the prior art, this air compression device has the following advantages:

1. It can achieve a very good sealing state between the compression chamber and the air inlet and outlet holes, and its sealing performance is good and the compression effect is good;

2. Using a plurality of isolated support bumps 1 and 2 support bumps to respectively seal the intake diaphragm and the outlet diaphragm with multiple contact points, compared with the direct contact sealing method of all the entire surface, the mutual The fit between them is better, which makes the sealing effect better, thereby improving the efficiency and effect of air compression.

Description of drawings

Fig. 1 is an exploded view of the structure of the air compression device.

Fig. 2 is an exploded view of the structure of the piston and the piston rod in the air compression device.

Fig. 3 is an exploded view of the structure of the diaphragm base and the air outlet diaphragm in the air compression device.

In the figure, 1, cylinder; 2, piston; 21, air intake hole; 22, groove one; 23, annular protruding ring one; 24, support bump one; 25, annular groove one; 26, annular protruding ring three ;27, card slot; 3, piston rod; 4, intake diaphragm; 5, piston ring; 6, diaphragm base; 61, groove two; , Air outlet; 7, Air outlet diaphragm; 8, Spring.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Figures 1, 2 and 3, the air compression device installed on the air compressor includes a cylinder 1, a piston 2 and a piston rod 3 installed in the cylinder 1, and is characterized in that the upper end of the piston 2 is provided with several Air intake hole 21, piston 2 upper end surface has groove one 22, is provided with annular protruding ring one 23 in groove one 22, and above-mentioned air inlet 21 is positioned at annular protruding ring one 23, and described annular protruding ring one 23 The upper cover is connected with an air intake diaphragm 4, the air intake diaphragm 4 can seal or conduct the air intake hole 21, and a plurality of support protrusions 24 are arranged in the groove 22, so that When the air intake diaphragm 4 is sealed with the air intake hole 21, the above-mentioned support protrusion 124 is against the lower end surface of the air intake diaphragm 4, and the inner cavity of the cylinder 1 is also equipped with a diaphragm base 6, so A compression cavity is formed between the diaphragm base 6 and the upper end surface of the piston 2, the upper end of the diaphragm base 6 is provided with an air outlet 64 communicating with the compression chamber, and an air outlet 64 that can be sealed or sealed on the upper end of the diaphragm base 6 is installed. Conductive air outlet diaphragm 7.

Groove one 22 is also provided with annular protruding ring two, and annular protruding ring two is positioned at annular protruding ring one 23 and is separated from annular protruding ring one 23 with annular groove one 25, and adjacent above-mentioned air inlet 21 will ring The second protruding ring is separated to form the above-mentioned first supporting bump 24 . Its support projection 1 24 also can be each projection that is spaced apart from each other randomly. Annular protruding ring 2 is also provided with annular protruding ring 3 26, and annular protruding ring 3 26 has a mounting hole, and the above-mentioned air intake diaphragm 4 is installed on the mounting hole by screws. The screw is not fully tightened during installation, but a little margin is left for when the piston 2 moves down, the air can push the intake diaphragm 4 back and there is a gap between the intake hole 21, so that the air can flow from the gap. into the compression chamber. The outer wall of the upper end of the piston 2 is provided with a draw-in groove 27 , and a piston ring 5 is arranged in the draw-in groove 27 .

There is a groove 2 61 on the upper end surface of the diaphragm base 6, and an outer annular protruding ring 62 and an inner annular protruding ring are arranged in the groove 2 61. The air outlet 64 is located in the outer annular protruding ring 62 and two adjacent outlets The air hole 64 cuts off the above-mentioned inner annular protruding ring to form a supporting protrusion 2 63 , and when the air outlet diaphragm 7 seals the air outlet 64 , the supporting protrusion 2 63 leans against the lower end surface of the air outlet diaphragm 7 . A spring 8 is installed on the air outlet diaphragm 7 , one end of the spring 8 leans against the inner cavity wall of the cylinder 1 , and the other end leans against the air outlet diaphragm 7 . The air outlet diaphragm 7 is installed on the diaphragm base 6 by screws. The screws are not fully tightened during installation, but a little margin is left for when the piston 2 moves upwards, the compressed air in the compression chamber can be compressed into a high pressure. There is a gap between the push-off of the air outlet diaphragm 7 and the air outlet hole 64, so that the air is output at high pressure from the gap.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (5)

1. one kind is installed on the air compression plant on air compressor, the piston (2) comprising cylinder (1) and be arranged in cylinder (1) and piston rod (3), it is characterized in that, piston (2) upper end has several inlet holes (21), piston (2) upper-end surface has groove one (22), annular convex ring one (23) is provided with in groove one (22), above-mentioned inlet hole (21) is positioned at annular convex ring one (23), the upper covering of described annular convex ring one (23) is connected with air inlet diaphragm (4), described air inlet diaphragm (4) can by the sealing of described inlet hole (21) or conducting, several supporting lugs one (24) are provided with in described groove one (22), supporting lug one (24) above-mentioned when described air inlet diaphragm (4) and inlet hole (21) seal is resisted against on the lower end surface of air inlet diaphragm (4), described cylinder (1) inner chamber is also provided with diaphragm base (6), compression chamber is formed between described diaphragm base (6) and piston (2) upper-end surface, described diaphragm base (6) upper end has the air outlet hole (64) be communicated with compression chamber, diaphragm base (6) upper-end surface is provided with can by air outlet hole (64) sealing or the diaphragm of giving vent to anger (7) of conducting.

2. a kind of air compression plant be installed on air compressor according to claim 1, it is characterized in that, described groove one (22) is also provided with annular convex ring two, described annular convex ring two be positioned at annular convex ring one (23) and and be separated with annular groove one (25) between annular convex ring one (23), annular convex ring two cuts off and forms above-mentioned supporting lug one (24) by adjacent above-mentioned inlet hole (21).

3. a kind of air compression plant be installed on air compressor according to claim 2, it is characterized in that, annular convex ring three (26) is also provided with in described annular convex ring two, have mounting hole in annular convex ring three (26), above-mentioned air inlet diaphragm (4) is arranged on mounting hole by screw.

4. a kind of air compression plant be installed on air compressor according to claim 1 or 2 or 3, is characterized in that, described piston (2) upper end outer side wall has draw-in groove (27), is provided with piston ring (5) in draw-in groove (27).

5. a kind of air compression plant be installed on air compressor according to claim 4, it is characterized in that, described diaphragm base (6) upper-end surface has groove two (61), outer ring bulge loop (62) and interior annular convex ring is provided with in groove two (61), described air outlet hole (64) is positioned at outer ring bulge loop (62) and above-mentioned annular convex ring is cut off formation supporting lug two (63) by adjacent two air outlet holes (64), supporting lug two (63) described in when air outlet hole (64) seals by diaphragm of giving vent to anger (7) leans on the lower end surface of diaphragm of giving vent to anger (7).