CN201220799Y

CN201220799Y - Automatic air supply leakproof means

Info

Publication number: CN201220799Y
Application number: CNU2008200467803U
Authority: CN
Inventors: 谭森育
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-24
Filing date: 2008-04-24
Publication date: 2009-04-15
Anticipated expiration: 2018-04-24

Abstract

The utility model relates to an automatic air-supply leakage-proof device which is characterized in that the device comprises a valve casing, a valve plate and a valve plug, wherein the valve plate is mounted in the valve casing; the valve plug is sleeved in the valve casing, so as to be moveably limited in the valve housing; and an air inlet is formed at the middle part of the valve plate, a leakage-proof lug used for plugging the air inlet is correspondingly arranged in the valve casing, and a normally aspirated connector and an air exhaust connector are respectively arranged on the valve casing and the valve plug. When a liquid is pumped by a pumping device, the device can automatically supply the air to a sealed liquid bottle, so that the liquid in the liquid bottle can be pumped out; and when the air-supply is stopped, the external air entering the liquid bottle can be cut off in time, thereby preventing the liquid in the liquid bottle from automatically flowing out. The device can be widely applicable to automatic liquid pumping devices, such as water dispensers, automatic soap dispensers, automatic imbibing devices and the like, and solve the problems, such as high failure rate, poor reliability, high production cost, unfavorable energy conservation and the like, which are caused by adopting an electromagnetic valve as the prior automatic air-supply leakage-proof device.

Description

A kind of automatic tonifying Qi leak-proof device

Technical field

The utility model relates to a kind of automatic tonifying Qi leak-proof device.

Background technology

At present, at water dispenser, automatically drip the soap device, automatically on the automatic pump liquid equipment such as imbibition machine,, mostly adopt leak free liquid bottle to carry out splendid attire liquid in order to ensure with the safety of liquid with prevent that usefulness liquid is contaminated.Yet well-known, liquid is contained in the leak free container, and electronic liquid sucking device can't suck out liquid.Therefore, in this kind equipment, an electromagnetic valve generally is installed is come the liquid bottle is carried out from tonifying Qi, to guarantee to be sucked out normally and to prevent that with liquid usefulness liquid from time spent not, can not flow out automatically.Yet, in actual use, utilize electromagnetic valve to have some shortcomings like this as automatic air supply device: on the one hand, equipment between in use long after, the easy et out of order of electromagnetic valve causes equipment can not normally use poor reliability; On the other hand, adopt electromagnetic valve, make whole device fabrication become higher, be unfavorable for reducing production cost of products as automatic air supply device; The third aspect, the work of tonifying Qi each time of electromagnetic valve all needs to consume certain electric energy, is unfavorable for saving the energy.

The utility model content

The purpose of this utility model is to address the above problem and is not enough, providing a kind of can replenish air to leak free liquid bottle automatically and prevent what liquid from flowing out automatically, and the reliability height, simple in structure, productive costs is low, helps saving the automatic tonifying Qi leak-proof device of the energy.

The technical solution of the utility model is achieved in that

A kind of automatic tonifying Qi leak-proof device, its characteristics are to comprise valve casing, valve block and valve plug, and its middle valve plate is installed in the valve casing, and described valve plug cover is packed in the valve casing, is defined in valve block in the valve casing movably; Induction opening has been made at the middle part of described valve block, and makes accordingly in valve casing and be useful on the leakproof projection that blocks induction opening, and is respectively equipped with natural aspirate joint and exhaust joint on valve casing and valve plug.

For make valve block have rational in infrastructure simple, reliability is high, the characteristics of long service life, above-mentioned valve block is made of the valve film of character cut in bas-relief shape and the seal ring that is arranged at around the valve film, make the leakproof projection that matches nested with the valve film in the above-mentioned valve casing accordingly, and what be positioned at this leakproof projection makes the annular groove that is nested with seal ring seal all around accordingly, and above-mentioned induction opening is arranged at the middle part of valve film; Above-mentioned valve plug be provided be used for seal ring closely overhead go into the stop collar of annular groove, and in stop collar, be formed with cavity for the activity of valve film, this valve plug cover is packed in the valve casing, and go into to make in the annular groove valve block to be installed on hermetically in the valve casing seal ring overhead of valve block by its stop collar, the valve film of this valve block is embedded in the cavity movably.

The utility model is owing to adopt the automatic tonifying Qi leak-proof device structure that is made of valve casing, valve block and valve plug, and the beneficial effect that obtains is as follows:

1, the utility model is used on the various automatic pump liquid equipment, when pump liquid equipment pump liquid, the utility model can be in time, automatically replenish air in the liquid bottle, and the liquid in the liquid bottle can be sucked out; When pump liquid equipment stopped pump liquid, the utility model can in time, automatically cut off outside air again and enter in the liquid bottle, accomplished to prevent that the liquid in the liquid bottle from flowing out automatically.

2, the utility model is the Purely mechanical structure, and is simple in structure, realizes that productive costs is low, and the reliability height, long service life easily; During work, need not to consume electric energy fully, help energy savings;

3, processing and fabricating cost of the present utility model is very low, can be widely used in water dispenser, drip on the automatic pump liquid equipment such as soap device, automatic imbibition machine automatically, and can control the productive costs of these equipment effectively, strengthens the market competitiveness of these equipment;

4, solved effectively fault rate height, poor reliability, productive costs height that existing employing electromagnetic valve deposits as tonifying Qi leak-proof device automatically, be unfavorable for problem such as energy savings.

Below in conjunction with accompanying drawing the utility model is further described:

Description of drawings

Fig. 1 is the sectional structure scheme drawing of the utility model under decomposing state.

Fig. 2 is the sectional structure scheme drawing of the utility model under non-suction condition.

Fig. 3 is the sectional structure scheme drawing of the utility model under suction condition.

Fig. 4 is an application example structure scheme drawing of the present utility model.

The specific embodiment

As shown in Figure 1 to Figure 3, a kind of automatic tonifying Qi leak-proof device described in the utility model comprises valve casing 1, valve block 2 and valve plug 3, and its middle valve plate 2 is installed in the valve casing 1, and described valve plug 3 overlaps in the valve casing 1 of packing into, and valve block 3 is defined in the valve casing 1 movably; Induction opening 4 has been made at the middle part of described valve block 2, and makes accordingly in valve casing 1 and be useful on the leakproof projection 11 that blocks induction opening 4, and is respectively equipped with natural aspirate joint 5 and exhaust joint 6 on valve casing 1 and valve plug 3.For making valve block 2 have rational in infrastructure, simple, high reliability features, as shown in Figure 1, described valve block 2 is made of the valve film 21 of character cut in bas-relief shape and the seal ring 22 that is arranged at around the valve film 21, make the leakproof projection 11 that matches nested with valve film 21 in the described valve casing 1 accordingly, and be positioned at making accordingly with seal ring 22 of this leakproof projection 11 all around and seal the annular groove 12 that is nested, described induction opening 4 is arranged at the middle part of valve film 21; Described valve plug 3 be provided be used for seal ring 22 closely overhead go into the stop collar 31 of annular groove 12, and in stop collar 31, be formed with cavity 32 for 21 activities of valve film, these valve plug 3 covers are packed in the valve casing 1, and go into to make in the annular groove 12 valve block 2 to be installed on hermetically in the valve casing 1 seal ring 22 overheads of valve block 2 by its stop collar 31, the valve film 21 of this valve block 2 is embedded in the cavity 32 movably.Simultaneously, for making valve block 2 have better elasticity and than the long life, this valve block 2 generally adopts silica gel material or the better and more durable elastomeric material of other elasticity carries out processing and manufacturing.Entering and prevent that the liquid of liquid bottle from flowing out automatically for the 21 control outside airs of proportioning valve film well, the side of the leakproof projection 11 of described valve casing 1 is provided with the inclined to one side hole 13 of the air inlet that is connected with natural aspirate joint 5, by this inclined to one side hole 13 when pump liquid equipment stops pump liquid, can be as shown in Figure 3, valve film 21 can be close on the leakproof projection 11 well, inclined to one side hole 13 is stopped up, prevent that the liquid of liquid bottle from flowing out automatically; And when pump liquid equipment work, again can be as shown in Figure 4, valve film 21 is inhaled to be left, and makes outside air flow into and enter into the liquid bottle from inclined to one side hole 13.Meanwhile, for making valve block 2 have air inlet effect preferably and better ending the gas effect, valve film 21 middle parts of described valve block 2 have crosswise induction opening 4, and in other words, the induction opening 4 on this valve film 21 is offered crosswise structure.For making valve plug 3 can be sleeved in the valve casing 1 reliably, as shown in Figure 1 to Figure 3, the madial wall of described valve casing 1 is provided with multistage snap ring 14, lateral wall 33 correspondences of described valve plug 3 are made slightly ramp structure, and slightly the lateral wall 33 of ramp structure is spacing with the card mutually of snap ring 14 and be set in reliably in the valve casing 1 by it for this valve plug 3.In order can easily the utility model to be fixed in the applied equipment, as shown in Figures 1 to 4, also be provided with the lug 16 of band screw hole 15 on the lateral wall of described valve casing 1.

Principle of work process of the present utility model is as follows:

At first, be similar to shown in Figure 4ly, natural aspirate joint of the present utility model 5 is connected by connection pipe 9 and outside air, 6 of its exhaust joints link to each other by the inlet suction port 20 on the bottle cap 10 of connection pipe 9 and liquid bottle 8 and connect.The liquid inlet joint 71 of the pump liquid mechanism 7 of automatic pump liquid equipment (this example adopt peristaltic pump as pump liquid mechanism) is connected to fluid joint 30 on the bottle cap 10 by connection pipe 9, and 72 outputs of its fluid joint are connected on the fluid port of automatic pump liquid equipment.Then, connect the working power of automatic pump liquid equipment, automatic pump liquid equipment begins the liquid in the aspirated liquid bottle 8; When the liquid of liquid bottle 8 was sucked out, the negative pressure of vacuum part had appearred in the liquid bottle 8; At this moment, the utility model is under the external atmosphere pressure effect, as shown in Figure 3, the valve film 21 of valve block 2 is washed open downwards, outside air flows into from natural aspirate joint 5, through inclined to one side hole 13 and induction opening 4, enters into liquid bottle 8 from exhaust joint 6, constantly fill up the negative pressure of vacuum part that liquid bottle 8 occurs, make pump liquid mechanism 7 can continue the liquid of suction bottle with liquid-out 8.And when automatic pump liquid equipment quits work, as shown in Figure 2, the valve film 21 of valve block 2 is under self elastic reaction, automatically reset and be close on the leakproof projection 11, inclined to one side hole 13 is stopped up, in time, automatically cut off outside air and enter in the liquid bottle 8, thereby the liquid that prevents liquid bottle 8 flows out the purpose of accomplishing leakproof automatically under the barometric pressure effect in the external world.

Claims

1, a kind of automatic tonifying Qi leak-proof device, it is characterized in that comprising valve casing (1), valve block (2) and valve plug (3), its middle valve plate (2) is installed in the valve casing (1), and described valve plug (3) overlaps in the valve casing (1) of packing into, and valve block (3) is defined in the valve casing (1) movably; Induction opening (4) has been made at the middle part of described valve block (2), and in valve casing (1), make accordingly and be useful on the leakproof projection (11) that blocks induction opening (4), and on valve casing (1) and valve plug (3), be respectively equipped with natural aspirate joint (5) and exhaust joint (6).

2, according to the described automatic tonifying Qi leak-proof device of claim 1, it is characterized in that above-mentioned valve block (2) is by the valve film (21) of character cut in bas-relief shape and be arranged at valve film (21) seal ring (22) all around and constitute, make the leakproof projection (11) that matches nested with valve film (21) in the above-mentioned valve casing (1) accordingly, and be positioned at making accordingly with seal ring (22) of this leakproof projection (11) all around and seal the annular groove (12) that is nested, above-mentioned induction opening (4) is arranged at the middle part of valve film (21); Above-mentioned valve plug (3) is provided with and is used for seal ring (22) the overhead stop collar (31) of going into annular groove (12) closely, and in stop collar (31), be formed with for the movable cavity (32) of valve film (21), this valve plug (3) cover is packed in the valve casing (1), and go into to make in the annular groove (12) valve block (2) to be installed on hermetically in the valve casing (1) seal ring (22) overhead of valve block (2) by its stop collar (31), the valve film (21) of this valve block (2) is embedded in the cavity (32) movably.

3,, it is characterized in that the side of the leakproof projection (11) of above-mentioned valve casing (1) is provided with the inclined to one side hole of air inlet (13) that is connected with natural aspirate end (5) according to claim 1 or 2 described automatic tonifying Qi leak-proof devices.

4,, it is characterized in that valve film (21) middle part of above-mentioned valve block (22) has crosswise induction opening (4) according to the described automatic tonifying Qi leak-proof device of claim 2.

5, according to the described automatic tonifying Qi leak-proof device of claim 1, the madial wall that it is characterized in that above-mentioned valve casing (1) is provided with multistage snap ring (14), the corresponding beveling structure of the lateral wall of above-mentioned valve plug (3), this valve plug (3) are spacing with the card mutually of snap ring (14) and be set in reliably in the valve casing (1) by the lateral wall of its ramp structure.

6,, it is characterized in that also being provided with on the lateral wall of above-mentioned valve casing (1) lug (16) of band screw hole (15) according to the described automatic tonifying Qi leak-proof device of claim 1.