CN104595541A - An Inverted Quantitative Valve - Google Patents

Abstract

The invention discloses an inverted proportional valve, which is characterized in that: the valve chamber is characterized by comprising a valve chamber cover, the lower end of the valve chamber cover is closed, the upper end of the valve chamber cover is opened, a valve chamber is arranged in the valve chamber cover, a liquid inlet channel is arranged between the outer wall of the valve chamber and the inner wall of the valve chamber cover and is communicated with a liquid guide channel in the valve chamber, a cup sealing mechanism capable of fixedly connecting the valve chamber, the valve chamber cover and a container bottle opening in a sealing manner is sleeved on the outer wall of the valve chamber, and a valve rod mechanism capable of quantitatively spraying liquid in the liquid guide channel is arranged in the valve chamber. The invention aims to overcome the defects in the prior art and provides the inverted proportional valve which is simple in structure and convenient to use.

Description

An Inverted Quantitative Valve

technical field

The invention relates to an inverted quantitative valve.

Background technique

Quantitative valve is a special valve that can precisely control the flow rate released by the fluid source each time. Quantitative valves are widely used in daily chemical and pharmaceutical industries. For example, common sprays and other products are equipped with quantitative valves. The structure of the existing quantitative valve is relatively complicated, and the assembly is inconvenient, so it cannot meet the requirements of production and use.

Therefore, the existing quantitative valve needs to be further improved.

Contents of the invention

The object of the present invention is to provide an inverted quantitative valve with simple structure and convenient use in order to overcome the disadvantages of the prior art.

In order to achieve the above object, the present invention adopts the following scheme:

An inverted quantitative valve, characterized in that: it includes a valve chamber cover, the lower end of the valve chamber cover is closed, the upper end of the valve chamber cover is open, a valve chamber is arranged inside the valve chamber cover, and the outer wall of the valve chamber is There is a liquid inlet channel between the inner wall of the valve chamber cover, and the liquid inlet channel is connected with the liquid guide channel in the valve chamber, and the valve chamber, the valve chamber cover and the container bottle mouth are set on the outer wall of the valve chamber. The cup sealing mechanism is sealed and fixedly connected, and a valve stem mechanism capable of quantitatively ejecting the liquid in the liquid guide channel is arranged in the valve chamber.

An inverted quantitative valve as described above is characterized in that the cup sealing mechanism includes a cup sealing sleeve set on the valve chamber and capable of locking the valve chamber and the valve chamber cover on the bottle mouth. An installation hole is provided on the upper end surface, the valve stem mechanism passes through the installation hole, and a sealing ring is provided between the valve chamber and the sealing cup to seal the sealing cup and the valve chamber. The valve stem mechanism It is arranged in the sealing ring and is dynamically sealed with the sealing ring. A bottle opening connecting ring is set on the outer wall of the upper end of the valve chamber cover. Sealed outer gasket.

An inverted quantitative valve as described above is characterized in that the valve stem mechanism includes a valve stem, the lower end of the valve stem is closed, the valve stem is provided with a liquid spray channel, and the upper part of the valve stem is provided with When the valve stem moves down, the conduction hole can connect the liquid injection channel and the liquid guide channel. When the valve stem is at the highest position, the conduction hole is set above the sealing ring. The position protrusion ring, the position limitation protrusion ring is arranged under the sealing ring.

An inverted quantitative valve as described above is characterized in that a positioning step is provided in the valve chamber, a return spring is provided between the limiting convex ring and the positioning step, and a return spring is provided at the lower part of the valve stem. There is a limit taper surface capable of closing the liquid guide channel at the positioning step so as to realize quantitative liquid discharge.

An inverted quantitative valve as described above is characterized in that a connecting portion is provided on the outer wall of the upper end of the valve chamber, and the sealing ring is arranged between the upper end surface of the connecting portion and the inner wall of the upper end of the sealing cup. The connecting ring includes an annular body, and a plurality of connecting pieces are arranged at intervals between the annular body and the valve chamber, and a liquid inlet communicating with the liquid inlet channel is arranged outside the connecting pieces.

An inverted metered valve as described above is characterized in that the liquid inlet channel includes a side wall slot longitudinally arranged on the inner wall of the valve chamber cover, and a groove corresponding to the side wall is provided on the bottom of the valve chamber cover. The wall gap is connected with the bottom gap, and the bottom gap is connected with the liquid guiding channel.

An inverted metered valve as described above is characterized in that the liquid inlet channel includes a groove on the outer wall of the valve longitudinally arranged below the connecting part, and a groove corresponding to the groove is provided on the lower end surface of the valve chamber. The grooves are connected to the bottom groove, and the bottom groove is connected to the liquid guiding channel.

An inverted quantitative valve as described above is characterized in that a sealing protruding ring is provided at the upper end of the valve chamber, and a sealing ring groove is provided at a position corresponding to the sealing protruding ring below the sealing ring, and the sealing protruding ring Set in the sealing ring groove.

An inverted quantitative valve as described above is characterized in that a plurality of internal slots are arranged at intervals on the connecting part, and a fixed internal convex point is pressed on the position corresponding to the sealing cup and the internal slots .

An inverted quantitative valve as described above is characterized in that a gap is provided between the connecting portion and the upper end of the valve chamber cover.

In summary, the present invention has the beneficial effects relative to the prior art as follows:

The invention has simple structure, convenient assembly and use, and can precisely control the injection flow.

Description of drawings

Fig. 1 is a schematic diagram of the present invention;

Fig. 2 is a schematic sectional view of the present invention;

Fig. 3 is an exploded schematic view of the present invention.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing description and specific embodiment:

A kind of inverted quantitative valve as shown in Fig. 1 to 3, comprises valve chamber cover 1, and described valve chamber cover 1 lower end is closed, and described valve chamber cover 1 upper end opening 101, is set in described valve chamber cover 1 There is a valve chamber 3, a liquid inlet passage 16 is arranged between the outer wall of the valve chamber 3 and the inner wall of the valve chamber cover 1, and the liquid inlet passage 16 communicates with the liquid guide passage 5 in the valve chamber 3. The outer wall of the chamber 3 is provided with a cup sealing mechanism 100 which can make the valve chamber 3, the valve chamber cover 1 and the bottle mouth of the container sealed and fixedly connected. The valve stem mechanism 200.

The sealing cup mechanism 100 in the present invention includes a sealing cup 7 sleeved on the valve chamber 3 and capable of locking the valve chamber 3 and the valve chamber cover 1 on the bottle mouth. There is an installation hole, the valve stem mechanism 200 passes through the installation hole, and a sealing ring 10 that can seal the sealing cup 7 and the valve chamber 3 is provided between the valve chamber 3 and the sealing cup 7, the valve The rod mechanism 200 is set in the sealing ring 10 and is dynamically sealed with the sealing ring 10, and the outer wall of the upper end of the valve chamber cover 1 is provided with a bottle mouth connecting ring 2, and a can be placed on the bottle mouth connecting ring 2. The outer gasket 19 that seals the sealing cup 7 and the bottle mouth of the container.

The valve stem mechanism 200 described in the present invention includes a valve stem 8, the lower end of which is closed. Time-shifting can make the through-hole 14 that spray liquid channel 9 and liquid-guiding channel 5 communicate, and described through-hole 14 is arranged on the top of described seal ring 10 when described valve stem 8 is in the highest position, on the valve stem 8 is provided with a limiting protruding ring 11 , and the limiting protruding ring 11 is arranged under the sealing ring 10 .

In the present invention, a positioning step 12 is provided in the valve chamber 3, a return spring 13 is provided between the limiting convex ring 11 and the positioning step 12, and a reset spring 13 is provided at the lower part of the valve stem 8 to close the positioning step. The liquid guide channel 5 at the step 12 realizes the limit taper surface 27 for quantitative liquid discharge.

In the present invention, a connecting portion 4 is provided on the outer wall of the upper end of the valve chamber 3, and the sealing ring 10 is arranged between the upper end surface of the connecting portion 4 and the inner wall of the upper end of the sealing cup 7, and the bottle mouth connecting ring 2 includes An annular body 28, a plurality of connectors 29 are arranged at intervals between the annular body 28 and the valve chamber 3, and a liquid inlet 17 communicating with the liquid inlet channel 16 is provided on the outside of the connectors 29 .

In the present invention, the liquid inlet channel 16 includes a side wall slot 20 longitudinally arranged on the inner wall of the valve chamber cover 1 , and the bottom of the valve chamber cover 1 is provided to communicate with the side wall slot 20 . The bottom slot 21 is connected with the liquid guiding channel 5 .

In the present invention, the liquid inlet channel 16 includes a groove longitudinally arranged on the outer wall of the valve chamber 3 below the connecting portion 4, and a bottom groove communicating with the groove is provided on the lower end surface of the valve chamber 3 , the bottom groove communicates with the liquid guiding channel 5 .

In the present invention, a sealing protruding ring 22 is provided at the upper end of the valve chamber 3, and a sealing ring groove 23 is provided at a position corresponding to the sealing protruding ring 22 under the sealing ring 10, and the sealing protruding ring 22 is arranged on the In the sealing ring groove 23.

In the present invention, a plurality of inner slots 24 are arranged at intervals on the connecting portion 4 , and fixed inner protrusions 25 are pressed on the positions corresponding to the inner slots 24 of the sealing cup 7 .

In the present invention, a gap 26 is provided between the connecting portion 4 and the upper end of the valve chamber cover 1 .

When the present invention is in use, the container bottle is turned upside down. Under the action of the pressure gas in the container bottle, the liquid in the container bottle enters the liquid guide channel 5 in the valve chamber 3 from the liquid guide channel 5 and stays for a while. At this time, the valve chamber The liquid guide channel 5 in the 3 is filled with liquid, and the valve stem 8 is squeezed, and the valve stem 8 is forced to overcome the return spring 13 and move downward. When the conduction hole 14 moves down and enters the liquid guide channel 5, the The limiting cone surface 27 just seals the liquid guide channel 5 at the limiting step 12, thereby realizing quantitative spraying. The structure is simple, easy to assemble, and can be accurately controlled.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. an inversion proportional valve, it is characterized in that: include valve chamber cover (1), described valve chamber cover (1) lower end closed, described valve chamber cover (1) upper end open (101), valve chamber (3) is provided with in described valve chamber cover (1), feed pathway (16) is provided with between described valve chamber (3) outer wall and valve chamber cover (1) inwall, described feed pathway (16) is connected with the liquid-conveying ducts (5) in valve chamber (3), be arranged with at described valve chamber (3) outer wall and can make valve chamber (3), the capper structure (100) that valve chamber cover (1) and container finish are sealedly and fixedly connected, the valve rod mechanism (200) that the liquid quantitative in liquid-conveying ducts (5) can be made to spray is provided with in described valve chamber (3).

2. one according to claim 1 is inverted proportional valve, it is characterized in that described capper structure (100) includes and be set in the upper envelope cup (7) that also valve chamber (3) and valve chamber cover (1) can be locked on bottleneck of described valve chamber (3), described envelope cup (7) upper-end surface is provided with mounting hole, described valve rod mechanism (200) is through described mounting hole, the seal ring (10) that envelope cup (7) and valve chamber (3) can be made mutually to seal is provided with between described valve chamber (3) and envelope cup (7), described valve rod mechanism (200) to be arranged in described seal ring (10) and with seal ring (10) dynamic seal (packing), in described valve chamber cover (1) upper end, outer wall is arranged with bottleneck connecting ring (2), described bottleneck connecting ring (2) puts the outer washer (19) that envelope cup (7) can be made to seal mutually with container finish.

3. one according to claim 1 and 2 is inverted proportional valve, it is characterized in that described valve rod mechanism (200) includes valve rod (8), described valve rod (8) lower end closed, hydrojet passage (9) is provided with in described valve rod (8), the via (14) that hydrojet passage (9) can be made to be connected with liquid-conveying ducts (5) when valve rod (8) moves down is provided with on described valve rod (8) top, when described valve rod (8) is in highest order, described via (14) is arranged on described seal ring (10) top, described valve rod (8) is provided with position limiting convex ring (11), described position limiting convex ring (11) is arranged on described seal ring (10) below.

4. one according to claim 3 is inverted proportional valve, it is characterized in that being provided with positioning step (12) in described valve chamber (3), between described position limiting convex ring (11) and positioning step (12), be provided with Returnning spring (13), be provided with in described valve rod (8) bottom the liquid-conveying ducts (5) closing described positioning step (12) place thus realize quantitative liquid-discharging the spacing conical surface (27).

5. one according to claim 3 is inverted proportional valve, it is characterized in that being provided with joint (4) at described valve chamber (3) upper end outer wall, described seal ring (10) is arranged between described joint (4) upper-end surface and envelope cup (7) upper end inwall, described bottleneck connecting ring (2) includes cirque body (28), multiple link (29) is arranged at intervals with between described cirque body (28) and valve chamber (3), the liquid entering hole (17) be connected with described feed pathway (16) is provided with in described link (29) outside.

6. one according to claim 1 is inverted proportional valve, it is characterized in that described feed pathway (16) includes the sidewall short slot (20) be longitudinally arranged on described valve chamber cover (1) inwall, described valve chamber cover (1) bottom is provided with the bottom short slot (21) be connected with described sidewall short slot (20), and described bottom short slot (21) is connected with liquid-conveying ducts (5).

7. one according to claim 1 is inverted proportional valve, it is characterized in that described feed pathway (16) includes the groove of valve chamber (3) outer wall being longitudinally arranged on described joint (4) below, described valve chamber (3) lower end surface is provided with the kerve be connected with described groove, and described kerve is connected with described liquid-conveying ducts (5).

8. one according to claim 1 is inverted proportional valve, it is characterized in that being provided with sealing bulge loop (22) in described valve chamber (3) upper end, the position that described seal ring (10) below is corresponding with sealing bulge loop (22) is provided with closure gasket groove (23), and described sealing bulge loop (22) is arranged in described closure gasket groove (23).

9. one according to claim 1 is inverted proportional valve, it is characterized in that on described joint (4), be arranged at intervals with multiple interior slot (24), the position that described envelope cup (7) is corresponding with described interior slot (24) has been installed with salient point (25) in fixing.

10. one according to claim 1 is inverted proportional valve, it is characterized in that being provided with gap (26) between described joint (4) and valve chamber cover (1) upper end.