A quantitative control valve and a quantitative hose

Abstract

The present invention discloses a quantitative control valve, including a flow valve chamber and a flow control piston, wherein the flow valve chamber is configured to be tubular, the flow control piston includes a containing chamber and a first sleeve interface, and one end of the flow valve chamber is sleeved with the first sleeve interface; the flow valve chamber is also provided with a feed hole, and when the flow control piston slides relative to the flow valve chamber to block the feed hole, the flow control piston continues to slide relative to the flow valve chamber to press out the contents in the containing chamber. The present invention also discloses a quantitative hose. The quantitative control valve of the present invention ensures that the amount of contents flowing out during each extrusion process is the same, preventing the contents from being spilled or wasted due to excessive outflow.

Description

Technical Field

[0001] The present invention relates to the field of container packaging materials, in particular to a quantitative control valve. The present invention also relates to a quantitative hose comprising the quantitative control valve. Background Art

[0002] A container is a basic device used to hold materials and is mainly composed of a shell. It is often used as the shell of storage equipment or other chemical equipment. It is mainly composed of a shell, a head, a pipe, a flange and a support. The basic requirements for containers are: to meet process needs and ensure safe operation, including sufficient strength, rigidity, sealing and corrosion resistance, a certain service life, easy to manufacture, install, maintain and use, low cost and material saving. Containers are widely used in chemical production. According to pressure, there are vacuum, normal pressure and external pressure pressure vessels. Pressure vessels can be divided into low pressure, medium pressure, high pressure and ultra-high pressure vessels; according to temperature, there are normal temperature, low temperature and high temperature containers; according to the cylinder structure, there are single-layer containers and multi-layer containers; according to process use, there are storage, separation, reaction and heat exchange containers; according to thickness, there are thin-walled and thick-walled containers. Containers are an important part of the packaging of food, beverages, medicines, daily chemical products, etc., and are also the first place where consumers come into contact with products. Containers have the functions of maintaining the physical and chemical properties of the content products, facilitating storage and transportation, and are widely used in packaging products.

[0003] Traditional containers include a bottle body and a bottle cap, and the bottle body is provided with a bottle mouth, through which the contents of the container enter and exit the container. Existing containers are mostly controlled by artificial means to control the outflow of the contents, for example, by the user manually squeezing the contents out, or by inverting the container to cause the contents to flow out, which is difficult to control the outflow of the contents, especially for liquids with poor coagulation effects, which often causes excessive outflow and waste of the contents. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a quantitative control valve, which cooperates with a tube body to solve the problems of existing containers such as the inability to extrude contents quantitatively and difficulty in controlling the outflow of contents.

[0005] The second object of the present invention is to provide a quantitative hose to solve the problems of existing containers that the contents cannot be quantitatively squeezed out and the outflow of the contents is difficult to control.

[0006] One of the purposes of the present invention is achieved by the following technical solution:

[0007] A quantitative control valve comprises a flow valve chamber and a flow control piston, wherein the flow valve chamber is arranged in a tubular shape, the flow control piston comprises a containing chamber and a first sleeve interface, and one end of the flow valve chamber is sleeved with the first sleeve interface;

[0008] The flow valve cavity is also provided with a feeding hole. When the flow control piston slides relative to the flow valve cavity to block the feeding hole, the flow control piston continues to slide relative to the flow valve cavity to press out the contents in the accommodating cavity.

[0009] Furthermore, the first socket is sleeved on one end of the flow valve cavity.

[0010] Furthermore, a first annular flange and a second annular flange are provided on the outer wall of the flow valve cavity, a first annular clamping position is provided at the first sleeve interface, and the diameters of the first annular flange and the second annular flange are both larger than the inner diameter of the first annular clamping position;

[0011] The material passing hole is arranged between the first annular flange and the second annular flange, and the first annular clamping position is sleeved with the flow valve cavity between the first annular flange and the second annular flange.

[0012] Furthermore, the feed hole is arranged at a middle position between the first annular flange and the second annular flange, and the feed hole comprises a pair, and the pair of feed holes are symmetrically arranged on the flow valve cavity.

[0013] Furthermore, the flow control piston also includes a return spring, which is arranged in the accommodating chamber, and one end of the return spring abuts against the inner wall of the accommodating chamber, and the other end of the return spring abuts against the flow valve chamber.

[0014] Furthermore, the return spring is a return spring made of resin material.

[0015] The second object of the present invention is achieved by adopting the following technical solution:

[0016] A quantitative hose, comprising a hose and any one of the quantitative control valves described above;

[0017] An annular groove is provided at one end of the flow valve cavity away from the flow control piston, and a second annular position is correspondingly provided on the inner wall of the hose pipe mouth. When the second annular position is engaged with the annular groove, the flow valve cavity is connected with the hose pipe mouth.

[0018] Furthermore, a third annular flange is provided on the outer wall of the flow valve cavity, a plurality of fixing feet are axially extended from one end of the flow valve cavity away from the flow control piston, and a fourth annular flange is provided on one end of the fixing feet away from the flow valve cavity.

[0019] Furthermore, the fixing legs include four fixing legs, which are centrally symmetrically distributed, and the cross-sections of the four fixing legs are all arc-shaped.

[0020] Furthermore, the hose pipe mouth is provided with an external thread, and the external thread is used to connect the liquid outlet nozzle.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The quantitative control valve of the present invention comprises a flow valve chamber and a flow control piston. The flow valve chamber is arranged in a tubular shape, and a feed hole is arranged on the tubular flow valve chamber. The flow control piston comprises a receiving chamber and a first sleeve port, and one end of the flow valve chamber is sleeved with the first sleeve port so that the flow valve chamber extends into the receiving chamber. When the flow control piston slides away from the flow valve chamber, a negative pressure is formed in the flow valve chamber and the receiving chamber, and the contents are sucked into the flow valve chamber from the feed hole, and further enter the receiving chamber from the flow valve chamber. When the flow control piston slides toward the flow valve chamber, the pressure in the flow valve chamber and the receiving chamber is greater than the external pressure, and the contents in the flow valve chamber and the receiving chamber are squeezed out from the feed hole. When the flow control piston slides to the feed hole, the flow control piston blocks the feed hole, and at this time, the contents in the flow valve chamber and the receiving chamber can only be squeezed out from the outlet at the other end of the flow valve chamber. When the flow control piston slides to the bottom relative to the flow valve chamber, the contents flowing out are the maximum content outflow amount of each squeezing, which plays a role in controlling the content outflow amount. After the flow control piston is reset to the original position, the next content extrusion process can be carried out to ensure that the amount of content flowing out during each extrusion process is the same.

[0023] (2) The quantitative hose of the present invention comprises a hose and a quantitative control valve, wherein the quantitative control valve is installed at the hose mouth. The user squeezes the hose body to push the flow control piston to slide relative to the flow valve cavity, thereby controlling the hose to quantitatively extrude the contents, thereby preventing the contents from being spilled or wasted due to excessive outflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a quantitative hose according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 The cross-sectional view of the metering hose along AA is shown;

[0026] Figure 3 for Figure 1 An exploded view of the dosing hose shown;

[0027] Figure 4 for Figure 1 An exploded view of the dosing hose shown;

[0028] Figure 5 for Figure 3 The metering hose is shown in a cross-sectional view along BB.

[0029] In the figure: 1, hose; 11, second annular position; 2, quantitative control valve; 21, flow valve chamber; 211, annular groove; 212, third annular flange; 213, fixing foot; 214, fourth annular flange; 215, feed hole; 216, first annular flange; 217, positioning rod; 22, flow control piston; 221, accommodating chamber; 222, first set of interfaces; 223, first annular position; 224, positioning hole; 23, reset spring. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0031] Example 1

[0032] like Figure 1-5 As shown in FIG. 1 , a quantitative hose according to an embodiment of the present invention is shown. The quantitative hose comprises a hose 1 and a quantitative control valve 2. The quantitative control valve 2 comprises a flow valve chamber 21 and a flow control piston 22. The flow valve chamber 21 and the flow control piston 22 are sleeved together to form an integral quantitative control valve 2. Figure 5 As shown, the top of the flow valve cavity 21 is provided with an annular groove 211, and correspondingly, the inner wall of the nozzle of the hose 1 is provided with a second annular position 11. During installation, the second annular position 11 engages the annular groove 211, thereby fixing the quantitative control valve 2, so that the quantitative control valve 2 is fixedly installed on the hose 1. When the quantitative hose is used, the effect of quantitatively measuring the contents of the hose is achieved by squeezing the hose wall with fingers and pushing the quantitative control valve 2, for example, the contents can be a paste, a viscous liquid or an aqueous solution. When not in use, the quantitative control valve 2 can be reset by dialing back the ear, or the quantitative control valve 2 can be reset by its own gravity.

[0033] In this embodiment, a third annular flange 212 is provided on the outer wall of the flow valve chamber 21. At the same time, a fixing foot 213 extends axially upward from the top of the flow valve chamber 21, and a fourth annular flange 214 is provided on the outer wall of the top of the fixing foot 213. The fixing foot 213 is provided along the top pipe opening of the flow valve chamber 21, and can be one fixing foot 213 (i.e., a tubular fixing foot 213, and the fourth annular flange 214 is in a complete closed loop shape), or multiple fixing feet 213 (i.e., a fixing foot 213 with an arc-shaped cross section). In this embodiment, the cross section of the flow valve chamber 21 is circular, the cross sections of the multiple fixing feet 213 are all circular, the cross section of the fourth annular flange 214 is also arranged in an arc shape, and the multiple fixing feet 213 are arranged in a circumference. In this way, it is ensured that the fourth annular flange 214 is enclosed into a non-continuous circular flange, and the relatively concave portion between the fourth annular flange 214 and the third annular flange 212 forms an annular groove 211. By clamping the upper and lower ends of the second annular clamping position 11 with the help of the fourth annular flange 214 and the third annular flange 212, the flow valve chamber 21 (i.e., the integral quantitative control valve 2) is controlled on the hose 1, so as to realize the tight connection between the hose 1 and the quantitative control valve 2. The fixing foot 213 is an extended component, which has a certain elasticity relative to the flow valve chamber 21. When installing the flow valve chamber 21, the flow valve chamber 21 and the integral quantitative control valve 2 can be inserted into the pipe body from top to bottom. Since the fixing foot 213 has a certain elasticity and can be bent toward the central axis relative to the flow valve chamber 21, the installation process of the entire quantitative control valve 2 is convenient.

[0034] In this embodiment, the number of the fixing feet 213 is four, the cross-sectional arc of the four fixing feet 213 can be 20-30°, and the four fixing feet 213 are symmetrically distributed. The four fixing feet 213 can not only ensure convenient installation, but also ensure that the flow valve cavity 21 is force balanced, and the installation process is not easy to break due to unbalanced force. In other embodiments, the number of the fixing feet 213 can also be two, three, four, five or six, and the fixing feet 213, the arrangement of the fixing feet 213 is also axially symmetrical or centrally symmetrical.

[0035] In this embodiment, the hose 1 is further provided with an external thread at the mouth of the hose 1, and the external thread is used to connect the liquid outlet nozzle, and the hose is connected to the liquid outlet nozzle through the external thread. After the liquid outlet nozzle is connected to the hose, the flow valve cavity 21 is communicated with the liquid outlet nozzle, and the contents squeezed out of the flow valve cavity 21 flow out from the liquid outlet nozzle, achieving the effect of quantitative extrusion.

[0036] Example 2

[0037] Example 2 describes in detail the quantitative control valve 2 in Example 1. Figure 2-5As shown, the quantitative control valve 2 includes a flow valve chamber 21 and a flow control piston 22. The flow valve chamber 21 is configured to be tubular (for example, the flow valve chamber 21 here can be a round tube or a special-shaped tube), and the bottom end of the flow valve chamber 21 is sleeved with the flow control piston 22, and the top end of the flow valve chamber 21 is sleeved with the pipe mouth of the hose 1, so that the content squeezed out of the flow valve chamber 21 can be squeezed out smoothly from the pipe mouth of the hose 1. The flow control piston 22 includes a accommodating chamber 221 and a first sleeve port 222. The bottom end of the flow valve chamber 21 is sleeved with the first sleeve port 222, and the bottom end of the flow valve chamber 21 extends into the accommodating chamber 221. A material passing hole 215 is also provided on the outer wall of the flow valve chamber 21, and the material passing hole 215 is configured to be a through hole for the content to pass through.

[0038] When in use, when the flow control piston 22 slides downward relative to the flow valve chamber 21, the flow valve chamber 21 withdraws from the accommodating chamber 221, and negative pressure is formed in the flow valve chamber 21 and the accommodating chamber 221 to inhale air. When the flow control piston 22 slides downward relative to the flow valve chamber 21 to expose the material passage hole 215, the negative pressure conditions in the flow valve chamber 21 and the accommodating chamber 221 cause the contents to enter the flow valve chamber 21 and the accommodating chamber 221 from the material passage hole 215. Even without negative pressure conditions, the contents in the tube can overflow into the flow valve chamber 21, thereby filling the accommodating chamber 221. When the flow control piston 22 is squeezed upward, the flow control piston 22 slides upward relative to the flow valve chamber 21. At this time, the material passage hole 215 is still in an exposed state. When squeezing the tube body and squeezing the flow control piston 22 at the same time, the pressure outside the flow valve chamber 21 also increases, and it is difficult for the contents to flow back into the tube body from the material passage hole 215. This ensures that the squeezed contents can only flow upward along the flow valve cavity 21 and out of the flow valve cavity 21. When the flow control piston 22 is further squeezed upward, the flow control piston 22 slides upward relative to the flow valve cavity 21. At this time, the flow control piston 22 slides to block the material hole 215, and the contents cannot flow back into the tube body through the material hole 215. The contents in the accommodating cavity 221 enter the flow valve cavity 21 and further overflow the quantitative control valve 2 through the flow valve cavity 21. Each time it is used, the overflowed contents are equivalent to the volume difference before and after the compression of the accommodating cavity 221, that is, each squeezing of the quantitative control valve 2 can achieve the effect of quantitative extrusion.

[0039] In this embodiment, it is preferred that the first sleeve 222 is sleeved with the bottom end of the flow valve cavity 21, that is, the pressure difference is generated by compressing the volume of the accommodating cavity 221. In other embodiments, the flow valve cavity 21 may be sleeved with the flow control piston 22. When the flow control piston 22 slides up and down relative to the flow valve cavity 21, the flow control piston 22 is in the pipeline cavity of the flow valve cavity 21 and squeezes the pipeline cavity (i.e., the contents) in the flow valve cavity 21, and the pressure difference generated thereby squeezes out the contents in the flow valve cavity 21.

[0040] As a preferred embodiment, a first annular flange 216 and a second annular flange are provided on the outer wall of the flow valve chamber 21 (in this embodiment, the second annular flange is the third annular flange 212. In other embodiments, the second annular flange can be independent of the third annular flange 212, and the second annular flange can be provided below the third annular flange 212). Similarly, a first annular retaining position 223 is provided at the first sleeve 222, and the diameters of the first annular flange 216 and the third annular flange 212 are both larger than the inner diameter of the first annular retaining position 223. Thus, when the flow control piston 22 slides up and down relative to the flow valve chamber 21, the first annular retaining position 223 can only slide between the first annular flange 216 and the third annular flange 212, ensuring that the flow control piston 22 will not be disconnected from the flow valve chamber 21 during the up and down sliding process.

[0041] As a preferred embodiment, the feed hole 215 is arranged at the middle position between the first annular flange 216 and the third annular flange 212, and the middle position refers to "the distance between the first annular flange 216 and the third annular flange 212 is taken as the total length, and the midpoint between the first annular flange 216 and the third annular flange 212 deviates upward or downward by one quarter of the total length". Among them, the feed hole 215 includes a pair, and the pair of feed holes 215 are both square, and the pair of feed holes 215 are symmetrically arranged on the flow valve cavity 215. The paired feed holes 215 can not only ensure that the contents quickly enter and exit the flow valve cavity 21, but also ensure that the pressure of the contents is relatively balanced during the extrusion process.

[0042] As a preferred embodiment, a return spring 23 is further included, and the return spring 23 is arranged in the accommodating chamber 221. During assembly, the lower end of the return spring 23 abuts against the bottom wall of the accommodating chamber 221, and the top end of the return spring 23 abuts against the flow valve chamber 21. Thus, by means of the automatic return function of the return spring 23, it is ensured that after squeezing the tube body (that is, the flow control piston 22), the flow control piston 22 can be automatically reset, which is convenient for the user to squeeze the hose next time.

[0043] As a preferred embodiment, the return spring 23 is a return spring 23 made of resin material. The return spring 23 made of resin material has the advantages of light weight, sufficient elasticity, easy installation and not easy to damage the quantitative control valve 2.

[0044] As a preferred embodiment, a positioning rod 217 is provided at the bottom of the flow valve chamber 21, and correspondingly, a positioning hole 224 is provided on the flow control piston 22. The positioning hole 224 in this embodiment is provided on the bottom wall of the accommodating chamber 221. During the assembly process, the length of the positioning rod 217 ensures that when the flow control piston 22 slides up and down relative to the flow valve chamber 21, the positioning rod 217 is always inserted into the positioning hole 224, thereby ensuring that the flow control piston 22 will not deviate during the process of sliding up and down relative to the flow valve chamber 21, and also ensuring the stability of the flow control piston 22.

[0045] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A method for using a quantitative hose, characterized in that: The quantitative hose comprises a hose and a quantitative control valve; The quantitative control valve comprises a flow valve chamber and a flow control piston, wherein the flow valve chamber is configured to be tubular, the flow control piston comprises a containing chamber and a first sleeve interface, and one end of the flow valve chamber is sleeved with the first sleeve interface; a feed hole is also provided on the flow valve chamber, and when the flow control piston slides relative to the flow valve chamber to block the feed hole, the flow control piston continues to slide relative to the flow valve chamber to press out the contents in the containing chamber; The first socket is sleeved with one end of the flow valve cavity; A first annular flange and a second annular flange are provided on the outer wall of the flow valve cavity, a first annular clamping position is provided at the first sleeve interface, and the diameters of the first annular flange and the second annular flange are both larger than the inner diameter of the first annular clamping position; the feed hole is provided between the first annular flange and the second annular flange, and the first annular clamping position sleeves the flow valve cavity between the first annular flange and the second annular flange; The feed hole is arranged at the middle position between the first annular flange and the second annular flange, and the feed hole comprises a pair of the feed holes, which are symmetrically arranged on the flow valve cavity; An annular groove is provided at one end of the flow valve cavity away from the flow control piston, and a second annular clamping position is correspondingly provided on the inner wall of the hose pipe mouth. When the second annular clamping position is clamped in the annular groove, the flow valve cavity is connected with the hose pipe mouth; The flow control piston further includes a return spring, and the return spring is arranged in the accommodating cavity; When using the metering hose, the effect of metering the contents of the hose is achieved by squeezing the hose wall with fingers and pushing the metering control valve.

2. The method for using the quantitative hose according to claim 1, characterized in that: One end of the return spring abuts against the inner wall of the accommodating cavity, and the other end of the return spring abuts against the flow valve cavity.

3. The method for using the quantitative hose according to claim 2, characterized in that: The return spring is a return spring made of resin material.

4. The method for using the quantitative hose according to claim 1, characterized in that: A third annular flange is provided on the outer wall of the flow valve cavity, a plurality of fixing feet are axially extended from one end of the flow valve cavity away from the flow control piston, and a fourth annular flange is provided on one end of the fixing feet away from the flow valve cavity.

5. The method for using the quantitative hose according to claim 4, characterized in that: The fixing legs include four fixing legs, which are centrally symmetrically distributed and have arc-shaped cross sections.

6. The method for using the quantitative hose according to claim 5, characterized in that: The hose pipe mouth is provided with an external thread, and the external thread is used to connect the liquid outlet nozzle.

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