Liquid pumping and air replenishing valve and liquid storage device

Abstract

The utility model relates to the field of valve technology, and provides a liquid pumping and air replenishing valve and a liquid storage device. The liquid pumping and air replenishing valve comprises a valve body, on which a liquid pumping channel and a plurality of air replenishing channels for connecting the inside of the liquid storage device and the outside are provided; a connecting groove is provided on the side wall of the valve body, and the air outlet ends of the air replenishing channels are all connected with the connecting groove. The liquid pumping and air replenishing valve provided by the utility model can connect the outside with the liquid storage device through the connecting groove and the air replenishing channel by arranging a plurality of air replenishing channels on the valve body, and arranging a connecting groove that is connected with the air outlet ends of all the air replenishing channels on the side wall of the valve body, and the plurality of air replenishing channels can play a role of mutual backup, thereby reducing the failure rate of the liquid pumping and air replenishing valve. In addition, by arranging the connecting groove on the side wall of the valve body, the air replenishing channel can connect the outside with the liquid storage device without penetrating the valve body, thereby increasing the distance between the air outlet end of the air replenishing channel and the liquid surface, and preventing the air replenishing channel from being blocked when the liquid level in the liquid storage device is too high.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a liquid pumping and air replenishing valve and a liquid storage device. Background Art

[0002] When liquid is extracted from a sealed liquid storage device, a waterproof breathable valve or a one-way valve is generally provided on the liquid storage device to prevent the liquid storage device from being deflated or damaged due to atmospheric pressure.

[0003] The existing waterproof breathable valve is provided with a waterproof breathable membrane, and its breathable flow rate is limited. When the liquid extraction flow rate is large, the sealed liquid storage device will still collapse internally, and even cause damage to the sealed liquid storage device. The existing one-way valve is provided with a spring, and the valve is pushed tight by the elastic force of the spring to achieve one-way sealing. When it is necessary to extract the liquid in the box, the air pressure inside the liquid storage device is reduced, and an air pressure difference is generated inside and outside the sealed liquid storage device. The valve can only be opened when the pressure generated by the air pressure difference is sufficient to overcome the elastic force of the spring. The air pressure difference can also cause the sealed liquid storage device to collapse and be damaged. In addition, if there is only one one-way valve on the liquid storage device, the valve may sometimes fail to operate smoothly or fail due to impurities, resulting in the inability to replenish air, and the use of multiple one-way valves will increase costs. Utility Model Content

[0004] The utility model provides a liquid extraction and air replenishment valve and a liquid storage device, which are used to solve the defects that the existing waterproof and breathable valve and one-way valve are easy to cause the liquid storage device to collapse or be damaged.

[0005] On the one hand, the utility model provides a liquid extraction and air replenishment valve, comprising: a valve body, on which is provided a liquid extraction channel and a plurality of air replenishment channels for connecting the inside of a liquid storage device and the outside; a connecting groove is provided on the side wall of the valve body, and the air outlet ends of all the air replenishment channels are connected to the connecting groove.

[0006] According to the liquid extraction and air replenishment valve provided by the utility model, the plurality of air replenishment channels are evenly distributed in an annular shape on the outside of the liquid extraction channel.

[0007] According to the liquid extraction and air replenishment valve provided by the utility model, the outer wall of the valve body is provided with a limiting flange, and the limiting flange is used to limit the valve body.

[0008] According to the liquid extraction and air replenishment valve provided by the utility model, a sealing groove is provided on the limiting flange, and a sealing ring is provided in the sealing groove.

[0009] The liquid extraction and air replenishment valve provided by the utility model also includes a valve cover, which is detachably connected to the valve body, a sealed cavity is formed between the valve cover and the valve body, and the air inlet end of the air replenishment channel is connected to the sealed cavity.

[0010] The liquid extraction and air supply valve provided by the utility model also includes a two-way quick-release plug, which is arranged in the liquid extraction channel; the two-way quick-release plug is provided with a first plug-in channel and a second plug-in channel which are interconnected.

[0011] On the other hand, the utility model provides a liquid storage device, comprising: a liquid storage device body and a liquid extraction and air replenishment valve as described in any one of the above items, wherein the liquid storage device body is provided with a liquid outlet, and the liquid extraction and air replenishment valve is arranged at the liquid outlet.

[0012] According to the liquid storage device provided by the utility model, a threaded fixing piece is provided on the inner side of the liquid outlet, and one end of the valve body is passed through the liquid outlet and threadably matched with the threaded fixing piece.

[0013] According to the liquid storage device provided by the utility model, a plurality of air supply grooves are provided at one end of the threaded fixing member facing the valve body, and the plurality of air supply grooves are all communicated with the communicating groove.

[0014] According to the liquid storage device provided by the utility model, the liquid storage device body and the valve body are integrated.

[0015] The liquid extraction and air replenishment valve provided by the utility model can connect the outside world and the liquid storage device through the connecting groove and the air replenishment channel by arranging multiple air replenishment channels on the valve body and arranging a connecting groove connected to the air outlet ends of all the air replenishment channels on the side wall of the valve body. The multiple air replenishment channels can play a role of mutual backup, thereby reducing the failure rate of the liquid extraction and air replenishment valve. In addition, by arranging the connecting groove on the side wall of the valve body, the air replenishment channel can connect the outside world and the liquid storage device without penetrating the valve body, thereby increasing the distance between the air outlet end of the air replenishment channel and the liquid surface, thereby preventing the air replenishment channel from being blocked when the liquid level in the liquid storage device is too high.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a cross-sectional view of a liquid extraction and air replenishment valve provided in an embodiment of the utility model.

[0019] Figure 2 It is one of the schematic diagrams of the valve body in the liquid extraction and air supply valve provided in the embodiment of the utility model.

[0020] Figure 3 This is the second schematic diagram of the valve body in the liquid extraction and air supply valve provided in the embodiment of the utility model.

[0021] Figure 4 This is the third schematic diagram of the valve body in the liquid extraction and air supply valve provided in the embodiment of the utility model.

[0022] Figure 5 It is a schematic diagram of the liquid storage device provided by the embodiment of the utility model when it is sealed.

[0023] Figure 6 It is a schematic diagram of the liquid storage device provided in an embodiment of the utility model when pumping water.

[0024] Figure 7 It is a schematic diagram of a threaded fixing member in a liquid storage device provided in an embodiment of the utility model.

[0025] Reference numerals:

[0026] 10. Liquid extraction and air supply valve; 110. Valve body; 111. Liquid extraction channel; 112. Air supply channel; 113. Connecting groove; 114. Limiting flange; 115. Sealing groove; 116. Sealing ring; 120. Valve cover; 121. Sealing gasket; 130. Two-way quick-release plug; 131. First plug-in channel; 132. Second plug-in channel; 20. Liquid storage device body; 30. Internal liquid extraction tube; 40. External liquid extraction tube; 50. Filter; 60. Sealing cover; 70. Threaded fixing; 710. Air supply groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Combine the following Figures 1 to 7 The utility model is described as a liquid extraction and air replenishment valve and a liquid storage device.

[0033] See also Figures 1 to 4 As shown, the liquid extraction and air supply valve 10 provided in the embodiment of the utility model includes a valve body 110, on which is provided a liquid extraction channel 111 and a plurality of air supply channels 112 for connecting the inside of the liquid storage device and the outside; a connecting groove 113 is provided on the side wall of the valve body 110, and the air outlet ends of all the air supply channels 112 are connected to the connecting groove 113.

[0034] The liquid extraction and air replenishment valve 10 provided by the utility model can connect the outside world and the liquid storage device through the connecting groove 113 and the air replenishment channel 112 by arranging a plurality of air replenishment channels 112 on the valve body 110, and arranging a connecting groove 113 connected to the air outlet ends of all the air replenishment channels 112 on the side wall of the valve body 110, and the plurality of air replenishment channels 112 can play a role of mutual backup, thereby reducing the failure rate of the liquid extraction and air replenishment valve 10. In addition, by arranging the connecting groove 113 on the side wall of the valve body 110, the air replenishment channel 112 can connect the outside world and the liquid storage device without penetrating the valve body 110, thereby increasing the distance between the air outlet end of the air replenishment channel 112 and the liquid surface, thereby preventing the air replenishment channel 112 from being blocked when the liquid level in the liquid storage device is too high.

[0035] The liquid extraction and air replenishment valve 10 provided by the utility model is suitable for installation on a sealed liquid storage device. When the liquid stored in the liquid storage device is extracted to an external set position through the liquid extraction and air replenishment valve 10, the inside of the liquid storage device is connected with the outside through the liquid extraction channel 111, and the liquid flows out through the liquid extraction channel 111. At the same time, multiple air replenishment channels 112 for connecting the inside of the liquid storage device with the outside are used to replenish air into the liquid storage device to balance the pressure inside and outside the liquid storage device and prevent the liquid storage device from being deflated or damaged.

[0036] See also Figure 4 As shown, according to some embodiments of the present invention, a plurality of air-infusing channels 112 are evenly distributed in an annular shape on the outside of the liquid extraction channel 111. By evenly distributing the plurality of air-infusing channels 112 in an annular shape on the outside of the liquid extraction channel 111, the arrangement of the liquid extraction channel 111 and the air-infusing channels 112 can be made reasonable, and the volume of the valve body 110 can be reduced while satisfying the arrangement of the plurality of air-infusing channels 112.

[0037] Specifically, in this embodiment, the liquid extraction channel 111 is arranged along the axial direction of the valve body 110, and the eight air supply channels 112 are evenly distributed in a ring on the outside of the liquid extraction channel 111. When extracting liquid, air can be replenished into the liquid storage device through the eight air supply channels 112 at the same time, and when some of the air supply channels 112 are blocked, the remaining air supply channels 112 can still continue to replenish air, which greatly improves the stability of the liquid extraction and air supply valve 10 during operation.

[0038] The gas supplement channel 112 may be a circular, square, triangular or other hole-shaped structure, or may be a slot-shaped or slit-shaped structure through which gas can flow. In this embodiment, the gas supplement channel 112 is preferably a circular hole-shaped structure.

[0039] See also Figure 1 As shown, according to some embodiments of the present utility model, the outer wall of the valve body 110 is provided with a limiting flange 114, and the limiting flange 114 is used to limit the valve body 110. By providing the limiting flange 114 on the outer wall of the valve body 110, after the valve body 110 is installed, the valve body 110 can be limited by the limiting flange 114 to ensure the stability of the valve body 110 during operation. In addition, the limiting flange 114 can provide an installation and fixing structure, such as an installation hole, that is convenient for installing and fixing the valve body 110.

[0040] See also Figure 1 As shown, according to some embodiments of the present utility model, a sealing groove 115 is provided on the limiting flange 114, and a sealing ring 116 is provided in the sealing groove 115. By providing the sealing groove 115 on the limiting flange 114 and providing the sealing ring 116 (such as an O-type sealing ring 116) in the sealing groove 115, the limiting flange 114 can limit the valve body 110, and the sealing ring 116 can seal the components (such as the liquid storage device described below) abutting against the limiting flange 114, thereby enhancing the sealing performance of the valve body 110 when it is installed.

[0041] See also Figure 1 As shown, according to some embodiments of the utility model, the liquid extraction and air replenishment valve 10 further includes a valve cover 120, and the valve cover 120 is detachably connected to the valve body 110 (preferably threaded connection in this embodiment), and a sealed cavity is formed between the valve cover 120 and the valve body 110, and the air inlet end of the air replenishment channel 112 is connected to the sealed cavity. A sealing gasket 121 is provided on the top of the inner side of the valve cover 120. By providing the valve cover 120 and the sealing gasket 121, the water outlet end of the valve body 110 can be sealed, and the air inlet ends of the multiple air replenishment channels 112 can be sealed through the sealed cavity formed between the valve cover 120 and the valve body 110, so as to prevent outside air from entering the liquid storage device or the liquid in the liquid storage device from overflowing.

[0042] See also Figure 1 As shown, according to some embodiments of the present invention, a two-way quick-release plug 130 is further included, and the two-way quick-release plug 130 is arranged in the liquid extraction channel 111; the two-way quick-release plug 130 is provided with a first plug-in channel 131 and a second plug-in channel 132 that are interconnected. By providing the two-way quick-release plug 130, the corresponding pipeline for liquid extraction can be quickly disassembled and assembled.

[0043] The liquid storage device provided by the present invention is described below. The liquid storage device described below and the liquid extraction and air replenishment valve 10 described above can correspond to each other.

[0044] See also Figure 5 and Figure 6 As shown, the liquid storage device provided by the embodiment of the utility model includes a liquid storage device body 20 and a liquid extraction and air replenishment valve 10 as described in any of the above embodiments. The liquid storage device body 20 is provided with a liquid outlet, and the liquid extraction and air replenishment valve 10 is provided at the liquid outlet.

[0045] The liquid storage device provided by the utility model is provided with the above-mentioned liquid extraction and air replenishment valve 10 at the liquid outlet position, so that it can ensure that the liquid storage device is prevented from being deflated or damaged when the liquid storage device is being extracted. At the same time, since the liquid extraction and air replenishment valve 10 is provided with a connecting groove 113 on the side wall of the valve body 110, more liquid can be stored in the liquid storage device, and the liquid level is not easy to block the air replenishment channel 112.

[0046] It should be noted that, according to some embodiments of the present invention, the position of the liquid outlet on the liquid storage device body 20 can be single or multiple, and accordingly, the number of the liquid extraction and air replenishment valves 10 can also be single or multiple. For example, when the specification (storage volume) of the liquid storage device is small, only a single liquid outlet can be set on the liquid storage device body 20, and a single liquid extraction and air replenishment valve 10 can be set accordingly; when the specification of the liquid storage device is large, multiple liquid outlets can be set at different positions of the liquid storage device body 20 according to needs, and multiple liquid extraction and air replenishment valves 10 can be set accordingly, so as to further improve the convenience of the liquid storage device body 20.

[0047] Specifically, see Figure 6 As shown, in this embodiment, a liquid outlet is provided on the liquid storage device body 20, and the liquid outlet is located at the top of the liquid storage device body 20. One end of the internal liquid pumping tube 30 is plugged into the second plugging channel 132 of the two-way quick-release plug 130, and the other end of the internal liquid pumping tube 30 is connected to the bottom of the liquid storage device and is provided with a filter 50 for filtering impurities, and one end of the external liquid pumping tube 40 is plugged into the first plugging channel 131 of the two-way quick-release plug 130. When pumping liquid, the valve cover 120 is opened, and the liquid stored in the liquid storage device is discharged to the external set position through the internal liquid pumping tube 30 and the external liquid pumping tube 40, and at the same time, the liquid storage device is replenished with air through multiple air replenishing channels 112 to balance the pressure inside and outside the liquid storage device.

[0048] In addition, a liquid replenishing port is also provided on the top of the liquid storage device, and a sealing cover 60 is provided at the liquid replenishing port. Liquid can be added to the liquid storage device through the liquid replenishing port, and the sealing cover 60 is used to seal it.

[0049] See also Figure 5 and Figure 6As shown, according to some embodiments of the utility model, a threaded fixing member 70 is provided on the inner side of the liquid outlet, and one end of the valve body 110 is passed through the liquid outlet and threadedly matched with the threaded fixing member 70. By providing the threaded fixing member 70 on the inner side of the liquid outlet, the valve body 110 can be conveniently threadedly connected with the threaded fixing member 70, so that the valve body 110 is convenient to be disassembled and assembled.

[0050] Specifically, in this embodiment, the threaded fixing member 70 is provided with an internal thread, and the lower end of the valve body 110 is provided with an external thread matching the internal thread. When installing, the external thread of the valve body 110 is screwed into the internal thread of the threaded fixing member 70, which is easy to operate. At this time, the limiting flange 114 of the valve body 110 abuts against the outer wall of the liquid storage device, and the gap between the limiting flange 114 and the outer wall of the liquid storage device is sealed by the sealing ring 116 to prevent liquid from flowing out through the gap.

[0051] See also Figure 7 As shown, according to some embodiments of the present invention, a plurality of air replenishing grooves 710 are provided at one end of the threaded fixing member 70 facing the valve body 110, and the plurality of air replenishing grooves 710 are all connected to the connecting groove 113. By providing a plurality of air replenishing grooves 710 connected to the connecting groove 113 at one end of the threaded fixing member 70 facing the valve body 110, external air can enter the liquid storage device through the plurality of air replenishing grooves 710, and when a single air replenishing groove 710 is blocked by impurities, air can be replenished in the liquid storage device through other air replenishing grooves 710.

[0052] According to some embodiments of the present invention, the liquid storage device body 20 is integrated with the valve body 110. By integrating the liquid storage device body 20 with the valve body 110, the connection gap between the valve body 110 and the liquid storage device body 20 can be reduced, the sealing performance of the device is enhanced, and there is no need to set components such as the limiting flange 114, the sealing ring 116 and the threaded fixing member 70.

[0053] According to some embodiments of the utility model, the liquid extraction and air supply valve 10 can be used to modify a liquid storage device that does not contain an air supply valve. It is only necessary to open a liquid outlet matching the liquid extraction and air supply valve 10 at the required position on the top of the liquid storage device and install the liquid extraction and air supply valve 10, which has strong flexibility in use.

[0054] It can be seen from the description of the above embodiments that the liquid pumping and air replenishing valve 10 and the liquid storage device provided by the utility model have at least the following advantages:

[0055] (1) The liquid extraction and air replenishment valve 10 provided by the utility model can connect the outside world and the liquid storage device through the connecting groove 113 and the air replenishment channel 112 by arranging a plurality of air replenishment channels 112 on the valve body 110, and arranging a connecting groove 113 connected to the air outlet ends of all the air replenishment channels 112 on the side wall of the valve body 110. The plurality of air replenishment channels 112 can play a role of mutual backup, thereby reducing the failure rate of the liquid extraction and air replenishment valve 10. In addition, by arranging the connecting groove 113 on the side wall of the valve body 110, the air replenishment channel 112 can connect the outside world and the liquid storage device without penetrating the valve body 110, thereby increasing the distance between the air outlet end of the air replenishment channel 112 and the liquid surface, thereby preventing the air replenishment channel 112 from being blocked when the liquid level in the liquid storage device is too high.

[0056] (2) The liquid storage device provided by the utility model is provided with the above-mentioned liquid extraction and air replenishment valve 10 at the liquid outlet position, so that it can ensure that the liquid storage device is prevented from being deflated or damaged when the liquid storage device is being extracted. At the same time, since the liquid extraction and air replenishment valve 10 is provided with a connecting groove 113 on the side wall of the valve body 110, more liquid can be stored in the liquid storage device, and the liquid level is not easy to block the air replenishment channel 112.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A liquid pumping and air replenishing valve, characterized in that: It comprises a valve body, on which a liquid extraction channel and a plurality of air supply channels for connecting the inside of the liquid storage device with the outside are provided; A communication groove is provided on the side wall of the valve body, and the gas outlet ends of all the gas replenishment channels are connected to the communication groove.

2. The liquid extraction and air supply valve according to claim 1, characterized in that: The plurality of air replenishing channels are evenly distributed in an annular shape on the outside of the liquid extraction channel.

3. The liquid pumping and air replenishing valve according to claim 1, characterized in that: The outer wall of the valve body is provided with a limiting flange, and the limiting flange is used to limit the valve body.

4. The liquid pumping and air replenishing valve according to claim 3, characterized in that: A sealing groove is arranged on the limiting flange, and a sealing ring is arranged in the sealing groove.

5. The liquid extraction and air supply valve according to any one of claims 1 to 4, characterized in that: It also includes a valve cover, which is detachably connected to the valve body, a sealed cavity is formed between the valve cover and the valve body, and the air inlet end of the air supplement channel is connected to the sealed cavity.

6. The liquid extraction and air supply valve according to claim 5, characterized in that: It also includes a two-way quick-release plug, which is arranged in the liquid extraction channel; The bidirectional quick-release plug is provided with a first plugging channel and a second plugging channel which are interconnected.

7. A liquid storage device, characterized in that: include: A liquid storage device body, wherein the liquid storage device body is provided with a liquid outlet; The liquid extraction and air supply valve according to any one of claims 1 to 6, wherein the liquid extraction and air supply valve is arranged at the liquid outlet.

8. The liquid storage device according to claim 7, characterized in that: A threaded fixing piece is disposed on the inner side of the liquid outlet, and one end of the valve body is passed through the liquid outlet and threadably matched with the threaded fixing piece.

9. The liquid storage device according to claim 8, characterized in that: A plurality of air supply grooves are provided at one end of the threaded fixing member facing the valve body, and the plurality of air supply grooves are all communicated with the communicating groove.

10. The liquid storage device according to claim 7, characterized in that: The liquid storage device body and the valve body are integrated.

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