CN2519060Y

CN2519060Y - Air-float piston mechanism

Info

Publication number: CN2519060Y
Application number: CN 02201338
Authority: CN
Inventors: 陈明飞; 梁吉旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-11
Filing date: 2002-01-11
Publication date: 2002-10-30
Anticipated expiration: 2012-01-11

Abstract

The utility model relates to an air floating piston device which comprises a cylinder, a piston, a mat and a connecting bar; the cylinder comprises a containing room, an air inlet hole and an air outlet hole; wherein the air outlet hole is provided with a reverse proof valve; the piston is positioned in the containing room of the cylinder which is provided with an air storing room; the air storing room is connected with the containing room through the though hole; the though hole is also provided with a reverse proof valve; the edge of the piston is provided with at least a ring groove; the ring groove and the air storing room are connected through an air passage; the mat is positioned in the ring groove and is provided with a radial hole; and one end of the connecting is connected with the piston. Therefore the utility model can reduce the friction and can enhance the output efficiency.

Description

The air floating type piston mechanism

Technical field

The utility model is relevant with piston, is meant a kind of air floating type piston mechanism especially, and the frictional force during its reciprocating motion of the pistons can significantly reduce than conventional construction.

Background technique

Press, traditional piston mechanism is to be installed with a piston in a cylinder body, this piston is driven and to-and-fro motion in this cylinder body by the connecting rod of a motor interlock, be generally the disappointing and reduction frictional force of prevention, can offer two annular grooves in this piston periphery, use for two O type rings and be installed with, be resisted against the inwall of this cylinder body by this O type ring outer rim, provide airtight and reduce the function that rubs: this conventional construction is that industrial quarters is continued to use for a long time, so along with mechanical industry is constantly progressive, piston becomes the main limiting factor of piston mechanism delivery efficiency for this reason gradually with frictional force between cylinder body.

The model utility content

Supervise in above-mentioned shortcoming, main purpose of the present utility model is promptly providing an air floating type piston mechanism, and its frictional force can significantly reduce than conventional construction.

Another purpose of the present utility model is to provide a kind of air floating type piston mechanism, and its delivery efficiency can significantly promote.

Edge is to take off purpose for before reaching, and air floating type piston mechanism provided by the utility model includes a cylinder body, a piston, a packing ring, and a connecting rod; This cylinder body is to include opening room outwardly, an inlet hole and an air outlet hole, and wherein this inlet hole is provided with a check valve, allows that gas enters this room by the external world and but can't overflow; This piston is to be located in the room of this cylinder body and with this room sealing, this internal piston is provided with a gas storage chamber, this gas storage chamber is to be communicated with this room by a through hole, this through hole is provided with a check valve, allow that gas enters this gas storage chamber by this room and but can't overflow, this piston periphery then is provided with at least one annular groove, is communicated with between this annular groove and this gas storage chamber and by an air flue; This packing ring is to be located in the annular groove of this piston, and between this piston and this cylinder body, this packing ring is provided with at least one radial hole; This connecting rod is to be connected with this piston with the one end, in order to transmission of power to this piston is made its to-and-fro motion; Thus, the frictional force of this piston mechanism can significantly reduce than conventional construction, and delivery efficiency significantly can be promoted.

Wherein the check valve of this cylinder body is a shell fragment of being made by elastic material such as full genus, and this shell fragment is located on this cylinder body with the one end, is positioned at the medial extremity of this inlet hole and seals this inlet hole.

Wherein this check valve also includes a catch, and this catch is to be located on this cylinder body with the one end, the other end then with this shell fragment intended distance at interval.

Wherein the check valve of this piston is one by elastic material such as metal shell fragment, and this shell fragment is located on this piston with the one end, is positioned at the medial extremity of this through hole and seals this through hole.

Wherein this check valve also includes a catch, and this catch is to be located on this piston with the one end, the other end then with this shell fragment intended distance at interval.

Wherein the number of this annular groove is to be the best with two.

Wherein the section of this packing ring is rectangular, and its top, root edge all contact with this annular groove, inside and outside edge then respectively with this annular groove, this cylinder body room inwall intended distance at interval.

Wherein the number of this packing ring radial hole is the best with six, and is distributed in equally spacedly on this packing ring.

Description of drawings

In order more to understand characteristics of the present utility model place, below in conjunction with an accompanying drawing and a preferred embodiment and be described as follows, wherein:

Fig. 1 is the stereogram of the utility model one preferred embodiment.

Fig. 2 is the three-dimensional exploded view of the utility model one preferred embodiment.

Fig. 3 is the top view of the utility model one preferred embodiment.

Fig. 4 is the side view of the utility model one preferred embodiment.

Fig. 5 is the sectional view of the utility model one preferred embodiment.

Fig. 6 is the schematic representation of the utility model one preferred embodiment first operating state.

Fig. 7 is the schematic representation of the utility model one preferred embodiment second operating state.

Fig. 8 is the partial enlarged drawing of the utility model one preferred embodiment.

Embodiment

See also Fig. 1 to Fig. 5, the air floating type piston mechanism 10 that the utility model one preferred embodiment is provided is to establish on the compressor 12, this compressor 12 includes a pedestal 13, one axle 14 is located in this pedestal 13 by two bearings 15, one driving gear 16 is located at an end of this axle 14, one idle pulley 17 is located at the other end of this axle 14, and this air floating type piston mechanism 10, wherein this driving gear 15 can be driven by a motor (figure does not show) and rotate, and drives this axle 14 and this idle pulley simultaneously) 7 rotations together; 10 of this air floating type piston mechanisms include a cylinder body 20, one pistons 30, two packing rings 40, and a connecting rod 50.

This cylinder body 20 is to be fixedly arranged on this pedestal 13 by two bolts 22, be to include opening room 23 outwardly, one inlet hole 24 is communicated with this room 23 with extraneous, and this room 23 of an air outlet hole 25 connections is with extraneous, wherein these inlet hole 24 inboards are provided with a check valve 26, this check valve 26 includes a shell fragment 27 of being made by elastic material such as full genus, an and catch 28, this shell fragment 27 is to be fixedly arranged on this cylinder body 20 inwalls with the one end, be positioned at the medial extremity of this inlet hole 24 and seal this

inlet hole

24,28 of this catch are fixedly arranged on this cylinder body 20 inwalls with the one end, the other end then with this shell fragment 27 intended distance at interval, thus, this check valve 26 will allow that gas enters this room 23 by the external world and but can't overflow, and chat after holding as for its detailed start principle: during actual the manufacturing again, also can be as Fig. 2, shown in Figure 5, in this room 23, be installed with a pipe 29 again as the inwall that contacts with this piston 30, with convenient processing, the so setting of this pipe 29 and nonessential; Moreover, also be provided with a check valve 251 in this air outlet hole 25, allow that gas but can't be entered by these room 23 effusion external worlds, so this structure is to belong to known structure, holds and does not give unnecessary details at this.

This piston 30 is to be located in the room 23 of this cylinder body 20 and with these room 23 sealings, these piston 30 inside are provided with a gas storage chamber 32, this gas storage chamber 32 is to be communicated with this room 23 by a through hole 33, these through hole 33 inboards are provided with a check valve 34, check valve 26 similar of this check valve 34 and aforementioned cylinder body 20, also formed by a shell fragment 35 and a catch 36, making these check valve 26 tolerable gases enter this gas storage chamber 32 by this room 23 but can't overflow, in addition, these piston 30 peripheries are provided with the annular groove 37 of two rectangular sections, are connected between this annular groove 37 and this gas storage chamber 32 and by an air flue 38.

This two packing ring 40 is to be located in respectively in the annular groove 37 of this piston 30, its section is rectangular, and the top, root edge all contacts with this annular groove 37, inside and outside edge then respectively with this annular groove 37, this cylinder body 20 rooms 23 inwalls interval one intended distance, in addition, this packing ring 40 is provided with six radial holes 42 equally spacedly.

This connecting rod 50 is to articulate with one end and this piston 30, and the other end then connects with these idle pulley 17 frames, and thus, this connecting rod 50 can be passed to this piston 30 by this idle pulley 17 with power, and makes the spinning movement of this idle pulley 17 convert the to-and-fro motion of this piston 30 to.

When this connecting rod 50 is outwards pulled out this piston 30 by the room 23 of this cylinder body 20, as shown in Figure 6, because these room 23 internal air pressures are less than ambient pressure, the poor effect that is stressed of this shell fragment 27 will produce distortion, no longer seal this inlet hole 24 and allow that gas is entered in this room 23 by the external world, shown in arrow among Fig. 6, this moment, this catch 28 can prevent these shell fragment 27 excessive deformations and elastic fatique; Otherwise, when this connecting rod 50 pushes this piston 30 in this room 23, air pressure in this room 23 is greater than ambient pressure again, this shell fragment 27 will seal this and move back pore 24, as shown in Figure 7, and because the air pressure in this room 23 is greater than the air pressure of this gas storage chamber 32, this shell fragment 35 will be out of shape and allow that gas enters this gas storage chamber 32 by this room 23, shown in arrow among Fig. 7, be pushed into gradually in the process of this room 23 at this piston 30, gas in this gas storage chamber 32 will arrive this two annular groove 37 via this air flue 38, radial hole 42 by this two packing ring 40 releases again, shown in arrow among Fig. 8, at this moment, because the gas that releases will form the air supporting effect between this packing ring 40 and this room 23 inwalls or this pipe 29, this packing ring 40 can not contact with these room 23 inwalls or this pipe 29 on the one hand, can significantly reduce frictional force, the gas that releases on the other hand can form the screen-wall effect, makes unlikely the leaking of gas in this room 23; And, when this piston 30 is outwards pulled out by this connecting rod 50 once again, because the gas in this gas storage chamber 32 is still possessed a predetermined pressure, sustainable radial hole 42 via this air flue 38 and this packing ring 40 outwards releases, so no matter in piston 30 outwards or in the process that moves inward, all have aforesaid air supporting effect and can effectively reduce the frictional force in when running, the delivery efficiency of this piston mechanism 20 or this compressor 10 is significantly promoted, effectively improve the shortcoming of known structure, thereby become the purpose of this utility model; In addition, because the frictional force in the reciprocating motion of the pistons process significantly reduces the heat that can reduce friction and be given birth to not only, reduce temperature rise, the noise that running is produced also can effectively reduce, and also will increase integrally-built working life, has multiple advantage than known structure.

What be worth mentioning at last is, since this packing ring 40, outer rim is to leave a predetermined gap respectively and between this annular groove 37, these cylinder body 20 rooms 23 inwalls, so when piston 30 moves back and forth, this packing ring 40 can float between this annular groove 37 and this room 23 inwalls because of the gas wall size variation of releasing gas, promptly this packing ring 40 itself can cooperate the air pressure size and harmomegathus, makes air flotation effect reach best; And, make this piston mechanism only need can reach the effect that significantly reduces frictional force with the gas cost of very small portion because radial hole 42 apertures of this packing ring 40 form suitable size through strict control.

Air floating type piston mechanism provided by the utility model not only can be applicable to compressor, also can be applicable to devices such as engine, pneumatic cylinder or punch press, all the effect of attainable cost model utility.

In sum, the utility model is by well-designed cylinder body, piston, packing ring, and the combination of connecting rod, formation one can significantly reduce the air floating type piston mechanism of frictional force, its unitary construction really at first creating and tool enhancement effect, should meet the condition of novel patent, so apply for a patent in accordance with the law.

Claims

1. an air floating type piston mechanism is characterized in that, is to include:

One cylinder body is to include opening room outwardly, and an inlet hole is communicated with this room with extraneous, and an air outlet hole is communicated with this room with extraneous, and wherein this inlet hole is provided with one and allows that gas enters the check valve that this room but can't be overflowed by the external world;

One piston, be to be located in the room of this cylinder body and with this room sealing, this internal piston is provided with a gas storage chamber, this gas storage chamber is to be communicated with this room by a through hole, this through hole is provided with one and allows that gas enters the check valve that this gas storage chamber but can't be overflowed by this room, this piston periphery then is provided with at least one annular groove, is communicated with between this annular groove and this gas storage chamber and by an air flue;

One packing ring is to be located in the annular groove of this piston, and between this piston and this cylinder body, this packing ring is provided with at least one radial hole; And

One connecting rod is to be connected with this piston with the one end.

2. according to the described air floating type piston mechanism of claim 1, it is characterized in that wherein the check valve of this cylinder body is a shell fragment of being made by elastic material such as full genus, this shell fragment is located on this cylinder body with the one end, is positioned at the medial extremity of this inlet hole and seals this inlet hole.

3. according to the described air floating type piston mechanism of claim 2, it is characterized in that wherein this check valve also includes a catch, this catch is to be located on this cylinder body with the one end, the other end then with this shell fragment intended distance at interval.

4. according to the described air floating type piston mechanism of claim 1, it is characterized in that wherein the check valve of this piston is one by elastic material such as metal shell fragment, this shell fragment is located on this piston with the one end, is positioned at the medial extremity of this through hole and seals this through hole.

5. according to the described air floating type piston mechanism of claim 4, it is characterized in that wherein this check valve also includes a catch, this catch is to be located on this piston with the one end, the other end then with this shell fragment intended distance at interval.

6. according to the described air floating type piston mechanism of claim 1, it is characterized in that wherein the number of this annular groove is to be the best with two.

7. according to the described air floating type piston mechanism of claim 1, it is characterized in that wherein the section of this packing ring is rectangular, its top, root edge all contact with this annular groove, inside and outside edge then respectively with this annular groove, this cylinder body room inwall intended distance at interval.

8. according to the described air floating type piston mechanism of claim 1, it is characterized in that wherein the number of this packing ring radial hole is the best with six, and is distributed in equally spacedly on this packing ring.