CN218954131U

CN218954131U - Negative pressure valve device

Info

Publication number: CN218954131U
Application number: CN202223484896.4U
Authority: CN
Inventors: 魏冰; 刘玉花; 张秀新; 闫文芳
Original assignee: Gu'an Kangbit Sports Technology Co ltd; Beijing Competitor Sports Technology Co Ltd
Current assignee: Gu'an Kangbit Sports Technology Co ltd; Beijing Competitor Sports Technology Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-02
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a negative pressure valve device, which is arranged on a suction pipeline, and comprises: a cylinder body, the upper end of which is closed, the lower end of which is open to communicate with the interior of the suction duct; the valve plate is transversely arranged in the cylinder body, the valve plate divides the interior of the cylinder body into an upper chamber and a lower chamber, a valve port is formed in the valve plate, and the valve port is a conical port; a valve spool configured to be tapered and disposed at the valve port; a spring operable to urge the valve spool upward such that the valve spool seals the valve port; wherein: the cylinder wall at the upper part of the cylinder body is provided with a wall hole communicated with the upper cavity.

Description

Negative pressure valve device

Technical Field

The utility model relates to the technical field of food production, in particular to a negative pressure valve device.

Background

It is known that the use of a negative pressure infusion process to infuse a beverage into a can has many advantages, such as less foaming of the beverage during infusion and less noise. The negative pressure perfusion process comprises the following specific steps: firstly, sucking the tank body into which the beverage is required to be poured into a negative pressure state, and then opening a conduit for conveying the beverage, so that the beverage enters the tank body along a beverage spray pipe under the action of the negative pressure.

If the can body is made of plastic material, an excessive degree of negative pressure may cause deformation of the can body, and such deformation not only easily causes permanent deformation, but also affects subsequent pouring, for example, during pouring, the deformation and resetting process of the can body easily causes shaking of the can body.

Disclosure of Invention

In view of the above technical problems in the prior art, embodiments of the present utility model provide a negative pressure valve device.

In order to solve the technical problems, the technical scheme adopted by the embodiment of the utility model is as follows:

a negative pressure valve device provided on a suction duct, comprising:

a cylinder having a lower end opened to communicate with an inside of the suction duct;

the valve plate is transversely arranged in the cylinder body, the valve plate divides the interior of the cylinder body into an upper chamber and a lower chamber, a valve port is formed in the valve plate, and the valve port is a conical port;

a valve spool configured to be tapered and disposed at the valve port;

a spring operable to urge the valve spool upward such that the valve spool seals the valve port; wherein:

the wall hole communicated with the upper cavity is formed in the wall of the cylinder body.

Preferably, the negative pressure device further comprises a valve stem, and the valve core is connected to the lower end of the valve stem; wherein:

a retaining plate is further arranged in the upper chamber, and the valve rod penetrates through the retaining plate;

the upper portion of valve rod is provided with the backstop part, the spring housing is located on the valve rod and between backstop part and the retainer plate.

Preferably, a locking nut is sleeved above the stop member, and the locking nut and the valve rod form a threaded fit for adjusting the axial position of the stop member so as to adjust the compression degree of the spring.

Preferably, the lower end of the valve rod is sleeved with a shaft retainer ring, the lower end of the valve rod stretches into a counter bore of the valve core, the lower end of the valve rod is sleeved with a jacking nut, and the jacking nut stretches into the counter bore to be used for pushing against the shaft retainer ring.

Preferably, the retaining plate is provided with vent holes, and the vent holes are distributed on the retaining plate.

Preferably, a filter cover is sleeved outside the upper part of the cylinder body, the filter cover is made of a filter screen, and external air enters the upper chamber through wall holes after being filtered by the filter cover.

Compared with the prior art, the negative pressure valve device disclosed by the utility model has the beneficial effects that:

1. the negative pressure valve device can effectively limit the negative pressure degree in the tank body, and further avoid deformation of the tank body due to overlarge negative pressure degree.

2. The opening time of the valve core is adjusted by adjusting the compression degree of the spring, so that the negative pressure degree of the tank body can be adjusted.

An overview of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.

Drawings

In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings illustrate various embodiments by way of example in general and not by way of limitation, and together with the description and claims serve to explain the inventive embodiments. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive of the present apparatus or method.

Fig. 1 is a schematic perspective view of a negative pressure valve device according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a negative pressure valve device provided by an embodiment of the present utility model.

Reference numerals:

10-a cylinder; 11-an upper chamber; 12-a lower chamber; 13-wall holes; 14-a flange plate; 15-a substrate; 20-a valve plate; 21-valve port; 30-valve core; 31-a valve stem; 32-a stop member; 33-locking nut; 34-countersink; 35-a retainer ring for the shaft; 36-tightening the nut; 40-springs; 50-holding plates; 51-vent holes; 60-a filter cover.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein do not denote any order, quantity, or importance,

but merely to distinguish between different components. The word "comprising" or "comprises", and the like, is intended to mean that elements or items preceding the word are included in the word to cover elements or items listed after the word, and equivalents thereof

Also, other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

0 in order to keep the following description of the embodiments of the present utility model clear and concise, the present utility model is omitted

Detailed description of known functions and known components.

Embodiments of the present utility model disclose a negative pressure valve device for preventing occurrence of deformation of a can body due to an excessive degree of negative pressure in the can body at the time of negative pressure suction.

As shown in fig. 1 and 2, the negative pressure device includes a cylinder 10, a valve plate 20, a valve body 30, a valve stem 5 31, a spring 40, a base plate 15, and a holding plate 50.

The upper end of the cylinder 10 is closed, the lower end of the cylinder 10 is open, the base plate 15 is arranged at the port of the lower end of the cylinder 10 and is provided with a through hole allowing air flow to pass through, the periphery of the lower end of the cylinder 10 is provided with a flange plate 14, and the flange plate 14 is used for being attached and fixed with a boss of a suction pipeline, so that the device is arranged on the suction pipeline.

0 a valve plate 20 is transversely disposed within cylinder 10, valve plate 20 dividing the interior of cylinder 10 into upper chamber 11

And a lower chamber 12, the lower chamber 12 is communicated with an inner hole of the suction pipeline, and a wall hole 13 is formed in the wall of the cylinder body 10 corresponding to the upper chamber 11, so that the upper chamber 11 is communicated with the outside atmosphere. The middle part of the valve plate 20 is provided with a conical valve port 21; the valve core 30 is configured in a tapered configuration that mates with the valve port 21,

the valve body 30 is provided in the valve port 21 and moves axially to open or close the valve port 21 to the valve port 5 21.

The retaining plate 50 is transversely arranged in the upper chamber 11, the retaining plate 50 is provided with vent holes 51, and the vent holes 51 are distributed on the whole retaining plate 50; the valve core 30 is connected to the lower end of the valve rod 31, the valve rod 31 is penetrated through the middle of the holding plate 50, the upper part of the valve rod 31 is sleeved with a stop member 32, and the upper part of the stop member 32

A locking nut 33 is sleeved on the square valve rod 31; the spring 40 is sleeved on the valve rod 31 and is arranged between the stop part 0 piece 32 and the retaining plate 50, and the axial position of the stop part 32 is adjusted by screwing the locking nut 33

And then adjusts the compression degree of the spring 40. Preferably, the valve core 30 and the valve rod 31 are connected as follows: the middle part of case 30 has seted up counter bore 34, and the lower extreme cover of valve rod 31 has the axle check ring 35 of joint, and the lower extreme of valve rod 31 stretches into in the counter bore 34, still overlaps on the valve rod 31 to be equipped with the jack nut 36, and this jack nut 36 screw in counter bore 34 is in order to push up the axle check ring 35 to the bottom of counter bore 34, so, valve rod 31 and case 30 form detachably and connect.

When the degree of negative pressure in the suction duct (which is approximately equal to the degree of negative pressure in the tank due to the communication between the suction duct and the tank) is too great to possibly cause deformation of the tank, the pressure difference between the pressure in the upper chamber 11 and the pressure in the lower chamber 12 causes the valve spool 30 to move downward to open the valve port 21, and outside air enters the upper chamber 11 through the wall hole 13 and then enters the lower chamber 12 through the valve port 21 and then enters the suction duct to compensate for the air pressure. When the negative pressure in the suction pipe is insufficient to cause the tank to deform, the pressure difference between the two chambers does not cause the valve core 30 to open the valve port 21.

In some preferred embodiments, a filter housing 60 is provided around the cylinder 10, the filter housing 60 being made of a filter mesh, the filter housing 60 being adapted to filter air entering the cylinder 10.

The negative pressure valve device provided by the utility model has the advantages that:

2. The opening timing of the valve body 30 is adjusted by adjusting the compression degree of the spring 40, and thus the negative pressure degree of the tank can be adjusted.

Furthermore, although exemplary embodiments have been described in the present disclosure, the scope thereof includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of the various embodiments across), adaptations or alterations as would be appreciated by those in the art. Elements in the claims are to be construed broadly based on the language employed in the claims and are not limited to examples described in the present specification or during the practice of the present application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above detailed description, various features may be grouped together to streamline the utility model. This is not to be interpreted as an intention that the disclosed features not being claimed are essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with one another in various combinations or permutations. The scope of the utility model should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.

Claims

1. A negative pressure valve device provided on a suction duct, comprising:

a valve spool configured to be tapered and disposed at the valve port;

2. The negative pressure valve device according to claim 1, further comprising a valve stem, the valve spool being connected to a lower end of the valve stem; wherein:

3. The negative pressure valve device according to claim 2, wherein a lock nut is sleeved over the stopper member, the lock nut being in threaded engagement with the valve stem for adjusting the axial position of the stopper member to adjust the degree of compression of the spring.

4. The negative pressure valve device according to claim 2, wherein a shaft retainer ring is sleeved at the lower end of the valve rod, the lower end of the valve rod extends into the counter bore of the valve core, a tightening nut is sleeved outside the lower end of the valve rod, and the tightening nut extends into the counter bore to be used for pushing against the shaft retainer ring.

5. The negative pressure valve device according to claim 2, wherein the holding plate is provided with a vent hole.

6. The negative pressure valve device according to claim 1, wherein a filter cover is sleeved on the upper portion of the cylinder, the filter cover is made of a filter screen, and external air is filtered through the filter cover and enters the upper chamber through a wall hole.