CN201214816Y

CN201214816Y - Pneumatic push button with air compensating structure

Info

Publication number: CN201214816Y
Application number: CNU2008200243569U
Authority: CN
Inventors: 彭东; 于兴义
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-16
Filing date: 2008-06-16
Publication date: 2009-04-01
Anticipated expiration: 2018-06-16

Abstract

The utility model discloses a pneumatic button with an air complementing structure; a panel hood and a base are respectively connected with the to part and the bottom part of a body in interference fit; a keystroke is clamped and connected with the top part of a guide column; between the guide column and the base in the cavity of the body, the center of the bottom of the guide column is bulked and connected with the top end of a compressed air cell; a flange at the bottom part of the guide column is clamped with the lower edge of the penal hood; an offset spring is sheathed outside the compressed air cell; the center of the bottom of the compressed air cell is provided with an air charging opening; the air charging opening is sheathed and provided with an O-shaped seal ring; an air flow hole corresponding to the position of the air charging opening is arranged on the base; the air flow hole is communicated with a column pipe below the base. The air flow hole corresponding to the air charging opening is arranged on the base for playing the role of sealing when the air charging opening of the air cell is descended to the air flow hole; while when the compressed air cell is pulled off the air flow hole by the guide column lifted by the offset spring, the air can be complemented into the space between the body and the air from the air flow hole and the air charging opening; besides, the air is complemented into the air cell when the compressed air cell expands, thus ensuring the pneumatic button with an air complementing structure to be capable of providing enough air during next work.

Description

Pneumatic button with gas supplementary structure

Technical field

The utility model relates to the starting drive of water tank drain valve actuating unit, is applicable to that particularly the gas control power transmission starts a kind of pneumatic button with gas supplementary structure of water tank drain valve.

Background technology

Water tank drain valve adopts pneumatic power transmission actuating mechanism, because of the installation of its suitable all directions has stronger suitability, but in use, promote the extruding of air bag on laboured breathing in the pneumatic button and the draining valve in external force, and adopt flexible pipe to connect between the two, the air of their inside has a little and leaks out seal, thereby use the air capacity of their inside to reduce, air pressure descends, influence utilizes the effect of air as the media power transmission, so must to the air capacity of their both inside and pressure replenish and balance after each work, with the integrity problem of solution gas control button.

The utility model content

For addressing the above problem, the utility model is intended to propose a kind of pneumatic button with gas supplementary structure of dependable performance.

The technical scheme that its technical problem that solves the utility model adopts is: have the pneumatic button of gas supplementary structure, dial hood, base are connected with bodies top, bottom interference fit respectively, and button and guide pillar top card link and connect; Between the guide pillar and base in the body cavity, guide pillar bottom centre is connected with the hasp on compressing gasbag top, the lower edge screens of guide pillar convex edge, bottom and dial hood, and compressing gasbag is arranged with back-moving spring outward; It is characterized in that: compressing gasbag bottom centre is provided with inflation inlet, the sheathed O RunddichtringO of inflation inlet, and base is provided with the airflow hole corresponding with the inflation inlet position, and airflow hole is communicated with column jecket under the base.

The inflation inlet of compressing gasbag of the present utility model bottom is the I shape union, and the O RunddichtringO is placed in the annular groove on the I shape union, and the O RunddichtringO can be pressed with airflow hole touch sealing.

The beneficial effects of the utility model are: the inflation inlet that is provided with band O RunddichtringO in the compressing gasbag bottom, on base, be provided with the airflow hole corresponding with inflation inlet, make the inflation inlet of air bag drop to airflow hole and play sealing function when drawing, and be pulled away from airflow hole by guide pillar by the back-moving spring jacking at compressing gasbag, air can be from the benefit between airflow hole and inflation inlet be gone into space between body and air bag, and with in the air revisal air bag, the assurance basis is novel can to provide sufficient air capacity when descending task when compressing gasbag stretches.

Description of drawings

Fig. 1 is a package assembly exploded view of the present utility model;

Fig. 2 is the utility model compressing gasbag top structure schematic diagram;

Fig. 3 is the utility model compressing gasbag polycrystalline substance schematic diagram;

Fig. 4 is the utility model work original state schematic diagram;

Fig. 5 is the partial enlarged drawing of Fig. 4;

Novel button is little presses down for this for Fig. 6, and O RunddichtringO on the air bag and base are adjacent to the sealing schematic diagram;

Fig. 7 is the partial enlarged drawing of Fig. 6;

The working state figure that Fig. 8 presses down entirely for this novel button.

Fig. 9 is the total enlarged drawing (air flow direction signal) of the office of Fig. 8.

Figure 10 is the promotion air bag connection diagram of the utility model and gas control draining valve.

Among the figure: 1. dial hood; 1.1. lower edge; 2. base, the 2.1. airflow hole; 2.2. column jecket; 3. body; 4. button; 5. guide pillar; 5.1. convex edge; 6. compressing gasbag; 6.1. hasp; 6.2. inflation inlet; 6.3. annular groove; 6.4.O RunddichtringO; 7. back-moving spring; 8. flexible pipe; 9. draining valve; 10. bindiny mechanism; 11. pull bar; 12. promotion air bag.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 1～pneumatic button with gas supplementary structure shown in Figure 5, dial hood 1, base 2 are connected with body 3 tops, bottom interference fit respectively, and button 4 links with guide pillar 5 top card and connects; Between the guide pillar 5 and base 2 in body 3 chambeies, guide pillar 5 bottom centre are connected with the hasp 6.1 on compressing gasbag 6 tops, lower edge 1.1 screens of convex edge, guide pillar 5 bottom 5.1 and dial hood 1, the compressing gasbag 6 outer back-moving springs 7 that are arranged with; Compressing gasbag 6 bottom centre are provided with inflation inlet 6.2, and the inflation inlet 6.2 of compressing gasbag 6 bottoms is the I shape pipe, and O RunddichtringO 6.4 is placed in the annular groove 6.3 on the I shape union; Base 2 is provided with the airflow hole 2.1 corresponding with inflation inlet 6.2 positions, and O RunddichtringO 6.4 can be pressed with airflow hole 2.1 touch sealing, and airflow hole 2.1 is communicated with column jecket 2.2 under the base 2.

Original state of the present utility model as shown in Figure 4 and Figure 5, the O RunddichtringO 6.4 on the inflation inlet 6.2 of compressing gasbag 6 bottoms separates with the airflow hole 2.1 of base 2.As shown in figure 10, column jecket 2.2 of the present utility model is connected with the promotion air bag 12 of gas control draining valve 9 by flexible pipe 8; As shown in Figure 6 and Figure 7, when little button 4, guide pillar 5 drives O RunddichtringO 6.4 that compressing gasbags 6 drop to its inflation inlet 6.2 and pastes mutually with the airflow hole 2.1 of base 2 and touch, as Fig. 8 and further pressing keys 4 shown in Figure 9, O RunddichtringO 6.4 on the inflation inlet 6.2 of compressing gasbag 6 bottoms is when compressing gasbag 6 pressurized superchargings, O RunddichtringO 6.4 touches the airflow hole of being close on the base 2 2.1 with pressure, the column jecket 2.2 of air under the base 2 in the compressing gasbag 6 discharged and air tight, as shown in figure 10, the air of compressing gasbag 6 is delivered to through flexible pipe 8 and promotes air bag 12 jacking bindiny mechanisms 10, drives pull bar 11 and starts draining valve 9 work; Unclamp button 4, under the effect of spring restoring force, risen by guide pillar 5 pull-ups and stretch automatically in compressing gasbag 6 tops, in this course, O RunddichtringO 6.4 breaks away from airflow hole 2.1, and air flows into the space of guide pillar 5 and base 2 from airflow hole 2.1, and the air in the compressing gasbag 6 is supplied in inflow, make compressing gasbag 6 return to original state fully, can be works next time provides sufficient air capacity and pressure, guarantees the reliability of its work.

Claims

1. have the pneumatic button of gas supplementary structure, dial hood, base are connected with bodies top, bottom interference fit respectively, and button and guide pillar top card link and connect; Between the guide pillar and base in the body cavity, guide pillar bottom centre is connected with the hasp on compressing gasbag top, the lower edge screens of guide pillar convex edge, bottom and dial hood, and compressing gasbag is arranged with back-moving spring outward; It is characterized in that: compressing gasbag bottom centre is provided with inflation inlet, the sheathed O RunddichtringO of inflation inlet, and base is provided with the airflow hole corresponding with the inflation inlet position, and airflow hole is communicated with column jecket under the base.

2. the pneumatic button with gas supplementary structure according to claim 1 is characterized in that: the inflation inlet of compressing gasbag bottom is the I shape union, and the O RunddichtringO is placed in the annular groove on the I shape union, and the O RunddichtringO can be pressed with airflow hole touch sealing.