Air-blowing type volume metering stepless proportioning anti-freezing solution device

Abstract

The invention relates to the field of fluid storage and proportioning, and particularly discloses an air-blowing type volume metering stepless proportioning anti-freezing solution device which comprises a refrigerating fluid storage tank, a plurality of liquid storage tanks and a plurality of liquid distribution valves, each liquid storage tank is connected with an air pump, the liquid outlet end of each liquid storage tank is provided with a liquid outlet connector, each liquid distribution valve comprises a sealing shell and a cylindrical plug, and each cylindrical plug is provided with a plurality of liquid storage holes. Fluid conveying and proportioning are achieved through cooperation of an air pump, a liquid distribution valve and the like; a liquid outlet pipe and a constant-pressure pipe are arranged in the liquid outlet connector to guarantee stable outflow of liquid, a motor is arranged on the outer side of the sealing shell to drive a cylindrical plug to rotate, multiple dynamic sealing assemblies are arranged to guarantee sealing, and the liquid storage tank is provided with a liquid level meter to facilitate liquid level observation. The technical effects that the volume proportion of all components of the anti-freezing solution is accurately controlled, stepless matching is achieved, liquid can be stably conveyed, leakage is reduced, and meanwhile operators can conveniently know the liquid level condition in the liquid storage tank in real time are achieved.

Description

Technical Field

[0001] This application relates to the field of fluid storage and proportioning, and in particular, to a pneumatic blowing type volume metering stepless proportioning antifreeze device. Background Art

[0002] In the fields of mechanical engineering and industrial production, the precise metering and proportioning of liquids is a crucial core technology, which is widely used in many industries such as chemical industry, food, pharmaceutical, and automobile manufacturing. With the acceleration of the global industrialization process, especially the booming development of the automobile manufacturing industry in recent years, the demand for liquid metering and proportioning is increasing day by day. Precise liquid metering and proportioning can not only ensure the stability and consistency of product quality, reduce the defective rate caused by improper proportioning, but also improve production efficiency and reduce production costs.

[0003] Taking automobile manufacturing as an example, during the filling process of engine coolant, since the temperature environments faced by automobiles in different regions are quite different when operating, accurately proportioning the coolant suitable for the temperature environment of the region can guarantee the performance and service life of the automobile and improve the overall quality of the automobile.

[0004] Currently, most automobile manufacturers in the market directly purchase pre-proportioned antifreeze. This method is relatively simple to operate, and the corresponding process can be completed by directly filling the purchased antifreeze into the automobile.

[0005] For the above related technologies, there are the following defects: Due to the different sales regions of automobiles, the minimum temperatures in different regions vary greatly, and it is necessary to fill antifreeze with different proportioning components according to the sales region. The applicability of direct procurement is relatively poor. Summary of the Invention

[0006] In order to facilitate filling antifreeze with different proportioning components according to the sales region, this application provides a pneumatic blowing type volume metering stepless proportioning antifreeze device.

[0007] The pneumatic blowing type volume metering stepless proportioning antifreeze device provided by this application adopts the following technical solutions: An air-blowing type volume metering stepless proportioning antifreeze device, comprising a refrigerant storage tank, a plurality of liquid storage tanks and a plurality of liquid distribution valves, wherein the plurality of liquid storage tanks and the plurality of liquid distribution valves are arranged correspondingly; an air pump is connected to the liquid storage tank, and a liquid outlet joint is arranged at the liquid outlet end of the liquid storage tank; the liquid distribution valve comprises a sealed housing and a cylindrical plug, and a vertically arranged cylindrical cavity is arranged in the sealed housing; a liquid inlet connecting pipe is arranged at the upper end of the sealed housing, and a liquid outlet connecting pipe is arranged at the lower end of the sealed housing. The liquid outlet end of the liquid inlet connecting pipe and the liquid inlet end of the liquid outlet connecting pipe are both communicated with the cylindrical cavity; the cylindrical plug is rotatably arranged coaxially in the cylindrical cavity and is in dynamic sealing contact with the sealed housing; a plurality of liquid storage holes arranged axially are arranged on the cylindrical plug, and the plurality of liquid storage holes are equidistantly spaced along the circumferential direction of the cylindrical plug; there is a blocking area at the position of the cylindrical plug between two adjacent liquid storage holes, and the blocking area is used for blocking the liquid inlet connecting pipe and / or the liquid outlet connecting pipe; the liquid outlet end of the liquid outlet joint is connected to the liquid inlet end of the liquid inlet connecting pipe; the liquid inlet of the refrigerant storage tank is connected to the plurality of liquid outlet connecting pipes.

[0008] By adopting the above technical solutions, the plurality of liquid storage tanks and the plurality of liquid distribution valves are arranged correspondingly, which can realize the independent storage and distribution of various liquids and facilitate subsequent proportioning according to requirements; an air pump is connected to the liquid storage tank, and the liquid in the liquid storage tank can be pressed out by air pressure to provide power for liquid transportation; a liquid outlet joint is arranged at the liquid outlet end of the liquid storage tank, which plays a role in connecting the liquid storage tank and the liquid inlet connecting pipe of the liquid distribution valve to ensure the smooth flow of liquid into the liquid distribution valve; the cylindrical cavity in the sealed housing of the liquid distribution valve provides space for the rotation of the cylindrical plug; the liquid inlet connecting pipe and the liquid outlet connecting pipe realize the inflow and outflow of liquid in the sealed housing; the cylindrical plug is rotatably arranged in the cylindrical cavity and is in dynamic sealing contact with the sealed housing, preventing liquid leakage and controlling the liquid flow through rotation at the same time; the plurality of axially arranged liquid storage holes on the cylindrical plug are equidistantly distributed circumferentially, which can quantitatively store and transport liquid; the blocking area between adjacent liquid storage holes can block the liquid inlet connecting pipe and / or the liquid outlet connecting pipe, so as to accurately control the on-off of liquid; the liquid outlet joint is connected to the liquid inlet connecting pipe, and the liquid inlet of the refrigerant storage tank is connected to the plurality of liquid outlet connecting pipes, so that each component forms a complete system. The air-blowing type volume metering stepless proportioning antifreeze device can steplessly proportion the antifreeze according to different requirements, solves the problem of different proportioning components of antifreeze required due to different automobile sales regions, and improves the applicability of antifreeze filling.

[0009] Preferably, a vertically arranged liquid outlet pipe and a constant pressure pipe are arranged in the liquid outlet joint, and the lower ports of the liquid outlet pipe and the constant pressure pipe are both communicated with the liquid inlet end of the liquid inlet connecting pipe; the upper port of the liquid outlet pipe is arranged at the bottom of the liquid storage tank in the liquid storage tank; the upper port of the constant pressure pipe is arranged at the mouth of the liquid storage tank in the liquid storage tank.

[0010] By adopting the above technical solution, when liquid is injected into the liquid storage tank, the liquid level is lower than the upper port of the constant pressure tube. When the cylindrical piston rotates to a position where the liquid storage hole and the liquid outlet joint are directly opposite, under the action of gravity, the liquid outlet pipe can effectively transport the liquid at the bottom of the liquid storage tank to the liquid inlet connecting pipe, ensuring liquid output. The constant pressure tube is configured to balance the pressure between the liquid storage hole and the liquid storage tank, and to discharge the gas in the liquid storage hole into the liquid storage tank, ensuring that the liquid flows steadily and is fully filled into the liquid storage hole, thereby realizing the function of the liquid in the liquid storage tank flowing smoothly into the liquid distribution valve, and ensuring the normal operation of the entire antifreeze device.

[0011] Preferably, a motor for driving the cylindrical piston to rotate is installed on the outer side of the sealed shell.

[0012] By adopting the above technical solution, the motor drives the cylindrical piston to rotate, so that the cylindrical piston can rotate accurately in the cylindrical cavity, so that the liquid storage hole and the sealing area are coordinated with the liquid inlet connecting pipe and the liquid outlet connecting pipe in turn, thereby controlling the opening and closing of the liquid inlet connecting pipe and the liquid outlet connecting pipe, and realizing the liquid in different liquid storage tanks to flow into the refrigerant storage tank as required for stepless proportioning.

[0013] Preferably, a dynamic sealing assembly is provided between both ends of the cylindrical piston and the sealing shell, and the dynamic sealing assembly includes a first sealing bearing, a second sealing bearing and a plurality of first sealing gaskets arranged corresponding to the plurality of sealing areas, the first sealing bearing and the second sealing bearing are both coaxial with the cylindrical piston, and one end of each is adjacent to the cylindrical piston, and the other end of each is connected to the sealing shell; the first sealing bearing is arranged on the outside of the second sealing bearing, and the liquid storage hole and the sealing area are both located between the first sealing bearing and the second sealing bearing; the first sealing gasket is arranged at the corresponding sealing area, connected to the sealing shell, and also in contact with the sealing area, the first sealing bearing and the second sealing bearing.

[0014] By adopting the above technical solution, the setting of the dynamic sealing assembly can prevent liquid from leaking from between the cylindrical plug and the sealing shell, thereby ensuring the sealing of the liquid distribution valve. The first sealing bearing and the second sealing bearing are coaxially arranged with the cylindrical plug, which can ensure that the cylindrical plug remains stable during rotation and reduce shaking. At the same time, the two also play the role of supporting and positioning the cylindrical plug, so that the cylindrical plug can accurately rotate in the cylindrical cavity to achieve different liquid flow states. Multiple first sealing gaskets are arranged in the corresponding blocking area, in contact with the sealing shell, the blocking area, the first sealing bearing and the second sealing bearing, further enhancing the sealing of the blocking area, preventing liquid from leaking from the connection between the liquid inlet connecting pipe and the liquid outlet connecting pipe, and preventing the adjacent liquid storage holes from being connected, thereby improving the overall working stability and reliability of the device.

[0015] Preferably, the inner ring of the first sealed bearing and the outer ring of the second sealed bearing are both connected to the cylindrical plug; the outer ring of the first sealed bearing and the inner ring of the second sealed bearing are both connected to the sealed housing.

[0016] By adopting the above technical solution, a dynamic seal connection between the cylindrical plug and the sealed housing is achieved, ensuring the sealing performance of the liquid distribution valve, preventing liquid leakage, thus guaranteeing the normal operation of the entire device and contributing to the accurate proportioning of the antifreeze.

[0017] Preferably, the dynamic seal assembly further includes a plurality of second gaskets corresponding to the plurality of blocking areas, and the second gaskets are arranged at the corresponding blocking areas and connected to the cylindrical plug; The second gaskets are connected to the inner ring of the first sealed bearing and the outer ring of the second sealed bearing; a plurality of rollers are arranged at each blocking area along the radial direction of the cylindrical plug, and the rollers are arranged between the first gasket and the second gasket and in contact with the first gasket and the second gasket; and one end of each roller is rotatably connected to the inner ring of the first sealed bearing, and the other end is rotatably connected to the outer ring of the second sealed bearing.

[0018] By adopting the above technical solution, the second gaskets are connected to the cylindrical plug and also to the inner ring of the first sealed bearing and the outer ring of the second sealed bearing, which can further enhance the sealing performance of the dynamic seal assembly; arranging a plurality of rollers along the radial direction of the cylindrical plug at the blocking areas, with the rollers located between and in contact with the first gasket and the second gasket, and one end of each roller rotatably connected to the inner ring of the first sealed bearing and the other end rotatably connected to the outer ring of the second sealed bearing, can reduce the friction when the cylindrical plug rotates, make the rotation of the cylindrical plug smoother, improve the operation stability of the device, and extend the service life of each component while ensuring the sealing performance.

[0019] Preferably, in the circumferential direction of the cylindrical plug, the two rollers are respectively arranged at both ends of the orifice of the liquid storage hole, and the plurality of rollers are equidistantly distributed along the circumferential direction of the cylindrical plug.

[0020] By adopting the above technical solution, arranging the two rollers at both ends of the orifice of the liquid storage hole in the circumferential direction of the cylindrical plug can effectively define the orifice range of the liquid storage hole, making the liquid flow more precisely and stably; the plurality of rollers being equidistantly distributed along the circumferential direction of the cylindrical plug can ensure that the structures and performances of each liquid storage hole are uniform during operation, improving the overall stability and reliability of the antifreeze proportioning device.

[0021] Preferably, the rollers are in dynamic seal connection with the inner ring of the first sealed bearing and the outer ring of the second sealed bearing.

[0022] By adopting the above technical solution, the roller is in dynamic sealing connection with the inner ring of the first sealed bearing and the outer ring of the second sealed bearing, which can ensure that during the rotation of the cylindrical plug, the connection and blocking operations between the liquid storage hole and the liquid inlet connecting pipe and the liquid outlet connecting pipe are more stable and reliable, reduce the risk of liquid leakage, improve the sealing performance and metering accuracy of the device, so as to ensure that the stepless ratio of the antifreeze can be realized more precisely and better meet the requirements for the ratio components of the antifreeze in different sales regions.

[0023] Preferably, a liquid level gauge is further provided on the liquid storage tank.

[0024] By adopting the above technical solution, the liquid level gauge can conveniently monitor the liquid volume in the liquid storage tank.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Multiple liquid storage tanks are correspondingly arranged with multiple liquid distribution valves, which can realize the independent storage and distribution of multiple liquids, facilitate the subsequent stepless ratio of the antifreeze according to requirements, solve the problem of filling antifreeze with different ratio components due to different automobile sales regions, and improve the applicability of antifreeze filling; 2. The cylindrical cavity in the sealing housing of the liquid distribution valve provides space for the rotation of the cylindrical plug, and the liquid inlet connecting pipe and the liquid outlet connecting pipe realize the inflow and outflow of liquid in the sealing housing; the cylindrical plug is rotatably arranged in the cylindrical cavity and is in dynamic sealing contact with the sealing housing to prevent liquid leakage, and at the same time, the flow of liquid can be controlled by rotation; 4. Multiple axial liquid storage holes on the cylindrical plug are circumferentially equidistantly distributed, which can quantitatively store and transport liquid; the blocking areas between adjacent liquid storage holes can block the liquid inlet connecting pipe and / or the liquid outlet connecting pipe, so as to accurately control the on-off of the liquid; 5. The liquid outlet joint is provided with a liquid outlet pipe and a constant pressure pipe. The liquid outlet pipe can transport the liquid at the bottom of the liquid storage tank to the liquid inlet connecting pipe to ensure liquid output; the constant pressure pipe can balance the pressure between the liquid storage hole and the liquid storage tank, discharge the gas in the liquid storage hole into the liquid storage tank, ensure the stable inflow of liquid and fully fill the liquid storage hole, and ensure the normal operation of the entire antifreeze device; 6. The motor installed outside the sealing housing drives the cylindrical plug to rotate, which can make the cylindrical plug rotate accurately in the cylindrical cavity, so that the liquid storage hole and the blocking area are sequentially in position cooperation with the liquid inlet connecting pipe and the liquid outlet connecting pipe, control the on-off of the liquid inlet connecting pipe and the liquid outlet connecting pipe, and realize the inflow of liquid in different liquid storage tanks into the refrigerant storage tank according to requirements for stepless ratio; 7. The dynamic seal assembly can prevent liquid from leaking between the cylindrical plug and the seal housing, ensuring the sealing performance of the liquid distribution valve. The first and second seal bearings can ensure the stability of the cylindrical plug during rotation, reduce wobbling, play a role in supporting and positioning the cylindrical plug, and enable the cylindrical plug to rotate accurately in the cylindrical cavity to achieve different liquid flow states. Multiple first sealing gaskets are arranged in the corresponding plugging areas, which can further enhance the sealing performance of the plugging areas, prevent liquid from leaking at the joints of the liquid inlet connecting pipe and the liquid outlet connecting pipe, and prevent communication between adjacent liquid storage holes, improving the overall working stability and reliability of the device. Brief Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application; Figure 2 is the sectional structural schematic diagram of the liquid storage tank in Embodiment 1 of the present application; Figure 3 is the exploded internal structural schematic diagram of the liquid distribution valve in Embodiment 1 of the present application; Figure 4 is the sectional overall structural schematic diagram of Embodiment 2 of the present application.

[0028] Reference Signs: 1. Liquid storage tank; 11. Liquid outlet joint; 111. Liquid outlet pipe; 112. Constant pressure pipe; 12. Air pump; 13. Liquid level gauge; 14. Liquid outlet valve; 2. Liquid distribution valve; 21. Seal housing; 2101. Cylindrical cavity; 211. Liquid inlet connecting pipe; 212. Liquid outlet connecting pipe; 22. Cylindrical plug; 2201. Liquid storage hole; 2202. Plugging area; 23. Dynamic seal assembly; 231. First seal bearing; 232. Second seal bearing; 233. First sealing gasket; 234. Second sealing gasket; 235. Roller; 24. Motor; 3. Multi-way joint; 31. Liquid inlet branch pipe; 32. Liquid outlet main pipe; 4. Refrigerant storage tank. Detailed Embodiments

[0029] The following will further elaborate on this application in conjunction with the attached drawings. Figures 1-4 A further detailed description of this application will be given.

[0030] An embodiment of this application discloses an air - blown volumetric metering stepless proportioning antifreeze device.

[0031] Embodiment 1

[0032] Referring to Figure 1 、 Figure 2 and Figure 3 An air - blown volumetric metering stepless proportioning antifreeze device includes a coolant storage tank 4, a plurality of liquid storage tanks 1 and a plurality of liquid distribution valves 2, and the plurality of liquid storage tanks 1 and the plurality of liquid distribution valves 2 are correspondingly arranged. An air pump 12 is connected to the liquid storage tank 1, and a liquid outlet joint 11 is provided at the liquid outlet end of the liquid storage tank 1. The liquid distribution valve 2 includes a sealed housing 21 and a cylindrical plug 22. A vertical cylindrical cavity 2101 is provided inside the sealed housing 21. An inlet liquid connecting pipe 211 is provided at the upper end of the sealed housing 21, and an outlet liquid connecting pipe 212 is provided at the lower end of the sealed housing 21. The liquid outlet end of the inlet liquid connecting pipe 211 and the liquid inlet end of the outlet liquid connecting pipe 212 are both communicated with the cylindrical cavity 2101. The cylindrical plug 22 is rotatably arranged coaxially in the cylindrical cavity 2101 and is in dynamic sealing contact with the sealed housing 21. A plurality of liquid storage holes 2201 are axially provided on the cylindrical plug 22, and the plurality of liquid storage holes 2201 are equidistantly spaced along the circumferential direction of the cylindrical plug 22. Specifically, when setting the size of the liquid storage holes 2201, it is necessary to ensure that when the upper end of the liquid storage hole 2201 is closed, the liquid can flow smoothly out of the lower port of the liquid storage hole 2201 by its own weight, avoiding the situation where the liquid cannot flow down by its own weight due to factors such as vacuum or friction. There is a blocking area 2202 on the cylindrical plug 22 between two adjacent liquid storage holes 2201, and the blocking area 2202 is used to block the inlet liquid connecting pipe 211 and / or the outlet liquid connecting pipe 212. The liquid outlet end of the liquid outlet joint 11 is connected to the liquid inlet end of the inlet liquid connecting pipe 211. The liquid inlet of the coolant storage tank 4 is connected to a plurality of outlet liquid connecting pipes 212. Specifically, a multi - way joint 3 is provided at the liquid inlet of the coolant storage tank 4. The multi - way joint 3 includes a plurality of inlet liquid joints corresponding to and connected to the plurality of outlet liquid connecting pipes 212, and an outlet main pipe 32 connected to the liquid inlet of the coolant storage tank 4. And in order to facilitate the mixing of various raw materials, a turbine is arranged in the outlet main pipe 32 or a stirring rod is arranged in the coolant storage tank 4.

[0033] Referring to Figure 1 、 Figure 2 and Figure 3 In the embodiment of this application, referring to Figure 1 、 Figure 2 and Figure 3, in the embodiments of the present application, multiple liquid storage tanks 1 are correspondingly arranged with multiple liquid distribution valves 2, which can realize the independent storage and distribution of multiple liquids, facilitating subsequent proportioning according to requirements. The liquid storage tank 1 is connected to an air pump 12, and the liquid in the liquid storage tank 1 can be pressed out by air pressure to provide power for liquid transportation. The liquid outlet end of the liquid storage tank 1 is provided with a liquid outlet joint 11, which serves to connect the liquid storage tank 1 and the liquid inlet connecting pipe 211 of the liquid distribution valve 2, ensuring the smooth flow of liquid into the liquid distribution valve 2. The cylindrical cavity 2101 in the sealed housing 21 of the liquid distribution valve 2 provides space for the rotation of the cylindrical plug 22. The liquid inlet connecting pipe 211 and the liquid outlet connecting pipe 212 realize the inflow and outflow of liquid in the sealed housing 21. The cylindrical plug 22 is rotatably arranged in the cylindrical cavity 2101 and is in dynamic sealing contact with the sealed housing 21 to prevent liquid leakage. At the same time, the flow of liquid can be controlled by rotation. A plurality of axial liquid storage holes 2201 on the cylindrical plug 22 are circumferentially equally spaced, which can quantitatively store and transport liquid. The blocking area 2202 between adjacent liquid storage holes 2201 can block the liquid inlet connecting pipe 211 and / or the liquid outlet connecting pipe 212, thereby precisely controlling the on-off of the liquid. The liquid outlet joint 11 is connected to the liquid inlet connecting pipe 211, and the liquid inlet of the coolant storage tank 4 is connected to a plurality of liquid outlet connecting pipes 212, enabling each component to form a complete system. The air-blowing volume metering stepless proportioning antifreeze device as a whole can perform stepless proportioning of antifreeze according to different requirements, solving the problem of filling antifreeze with different proportioning components due to different automobile sales regions and improving the applicability of antifreeze filling.

[0034] Referring to Figure 1 , Figure 2 and Figure 3 , a vertically arranged liquid outlet pipe 111 and a constant pressure pipe 112 are provided in the liquid outlet joint 11. The lower ports of the liquid outlet pipe 111 and the constant pressure pipe 112 are both connected to the liquid inlet end of the liquid inlet connecting pipe 211. The upper port of the liquid outlet pipe 111 is arranged at the bottom of the liquid storage tank 1. The upper port of the constant pressure pipe 112 is arranged at the mouth of the liquid storage tank 1.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , in the embodiments of the present application, when injecting liquid into the liquid storage tank 1, the liquid level is lower than the upper port of the constant pressure pipe 112. When the cylindrical plug 22 rotates to a position where the liquid storage hole 2201 is directly opposite to the liquid outlet joint 11, under the action of gravity, the liquid outlet pipe 111 can effectively transport the liquid at the bottom of the liquid storage tank 1 to the liquid inlet connecting pipe 211 to ensure liquid output. The constant pressure pipe 112 is provided to balance the pressure between the liquid storage hole 2201 and the liquid storage tank 1, and discharge the gas in the liquid storage hole 2201 into the liquid storage tank 1, ensuring the stable inflow of liquid and the full filling of the liquid into the liquid storage hole 2201, realizing the function of the smooth flow of liquid in the liquid storage tank 1 into the liquid distribution valve 2 and ensuring the normal operation of the entire antifreeze device.

[0036] Referring to Figure 1 、 Figure 2 and Figure 3 , a motor 24 for driving the rotary cylinder plug 22 to rotate is installed on the outer side of the sealed housing 21.

[0037] Referring to Figure 1 、 Figure 2 and Figure 3 , in the embodiment of the present application, the rotary cylinder plug 22 is driven by the motor 24 to rotate, so that the rotary cylinder plug 22 can accurately rotate in the cylindrical cavity 2101, so that the liquid storage holes 2201 and the plugging areas 2202 are in position cooperation with the liquid inlet connecting pipe 211 and the liquid outlet connecting pipe 212 in sequence, so as to control the on-off of the liquid inlet connecting pipe 211 and the liquid outlet connecting pipe 212, and realize the stepless ratio of the liquid in different liquid storage tanks 1 flowing into the coolant storage tank 4 as required.

[0038] Referring to Figure 1 、 Figure 2 and Figure 3 , dynamic sealing assemblies 23 are provided between both ends of the rotary cylinder plug 22 and the sealed housing 21. The dynamic sealing assemblies 23 include first sealing bearings 231, second sealing bearings 232 and a plurality of first sealing gaskets 233 corresponding to the plurality of plugging areas 2202. The first sealing bearings 231 and the second sealing bearings 232 are both coaxial with the rotary cylinder plug 22, and one end of each of them is adjacent to the rotary cylinder plug 22, and the other end of each of them is connected to the sealed housing 21. The first sealing bearings 231 are arranged on the outer side of the second sealing bearings 232, and the liquid storage holes 2201 and the plugging areas 2202 are both located between the first sealing bearings 231 and the second sealing bearings 232. The first sealing gaskets 233 are arranged at the corresponding plugging areas 2202, connected to the sealed housing 21, and also in contact with the plugging areas 2202, the first sealing bearings 231 and the second sealing bearings 232.

[0039] Referring to Figure 1 、 Figure 2 and Figure 3In the embodiment of the present application, the setting of the dynamic sealing assembly 23 can prevent liquid from leaking from between the cylindrical piston 22 and the sealing shell 21, thereby ensuring the sealing performance of the liquid dispensing valve 2. The first sealing bearing 231 and the second sealing bearing 232 are coaxially arranged with the cylindrical piston 22, which can ensure that the cylindrical piston 22 remains stable during rotation and reduce shaking. At the same time, the two also play the role of supporting and positioning the cylindrical piston 22, so that the cylindrical piston 22 can accurately rotate in the cylindrical cavity 2101 to achieve different liquid circulation states. Multiple first sealing gaskets 233 are arranged in the corresponding blocking area 2202, contacting the sealing shell 21, the blocking area 2202, the first sealing bearing 231 and the second sealing bearing 232, further enhancing the sealing performance of the blocking area 2202, preventing liquid from leaking from the connection between the liquid inlet connecting pipe 211 and the liquid outlet connecting pipe 212, and preventing the adjacent liquid storage holes 2201 from being connected, thereby improving the overall working stability and reliability of the device.

[0040] Reference Figure 1 、 Figure 2 and Figure 3 The inner ring of the first sealed bearing 231 and the outer ring of the second sealed bearing 232 are both connected to the cylindrical piston 22. The outer ring of the first sealed bearing 231 and the inner ring of the second sealed bearing 232 are both connected to the sealed housing 21.

[0041] Reference Figure 1 、 Figure 2 and Figure 3 In the embodiment of the present application, a dynamic sealing connection is achieved between the cylindrical piston 22 and the sealing shell 21, ensuring the sealing performance of the liquid distribution valve 2, avoiding liquid leakage, and thus ensuring the normal operation of the entire device, which helps to achieve accurate proportioning of the antifreeze liquid.

[0042] Reference Figure 1 、 Figure 2 and Figure 3 The dynamic sealing assembly 23 further includes a plurality of second sealing gaskets 234 arranged corresponding to the plurality of blocking areas 2202 . The second sealing gaskets 234 are arranged at the corresponding blocking areas 2202 and connected to the cylindrical piston 22 .

[0043] The second sealing gasket 234 is connected to the inner ring of the first sealed bearing 231 and the outer ring of the second sealed bearing 232. Each sealing area 2202 is equipped with multiple rollers 235 arranged along the radius of the cylindrical piston 22. These rollers 235 are located between the first and second sealing gaskets 233, 234, and contact both of them. One end of the roller 235 is rotatably connected to the inner ring of the first sealed bearing 231, and the other end is rotatably connected to the outer ring of the second sealed bearing 232.

[0044] Reference Figure 1 、 Figure 2 andFigure 3 , in the embodiment of the present application, with reference to Figure 1 , Figure 2 and Figure 3 , in the embodiment of the present application, the second gasket 234 is connected to the cylindrical plug 22 and is also connected to the inner ring of the first sealing bearing 231 and the outer ring of the second sealing bearing 232, which can further enhance the sealing performance of the dynamic sealing assembly 23. A plurality of rollers 235 are arranged in the plugging area 2202 along the radial direction of the cylindrical plug 22, and the rollers 235 are located between the first gasket 233 and the second gasket 234 and are in contact with them. At the same time, one end of the roller 235 is rotatably connected to the inner ring of the first sealing bearing 231, and the other end is rotatably connected to the outer ring of the second sealing bearing 232, which can reduce the friction when the cylindrical plug 22 rotates, make the rotation of the cylindrical plug 22 smoother, improve the operation stability of the device, and extend the service life of each component on the premise of ensuring the sealing performance.

[0045] With reference to Figure 1 , Figure 2 and Figure 3 , in the circumferential direction of the cylindrical plug 22, two rollers 235 are respectively arranged at both ends of the orifice of the liquid storage hole 2201, and a plurality of rollers 235 are equidistantly distributed along the circumferential direction of the cylindrical plug 22.

[0046] With reference to Figure 1 , Figure 2 and Figure 3 , in the embodiment of the present application, in the circumferential direction of the cylindrical plug 22, two rollers 235 are respectively arranged at both ends of the orifice of the liquid storage hole 2201, which can effectively limit the orifice range of the liquid storage hole 2201 and make the liquid flow more accurately and stably. A plurality of rollers 235 are equidistantly distributed along the circumferential direction of the cylindrical plug 22, which can ensure that the structures and performances of each liquid storage hole 2201 are uniform during operation, and improve the overall stability and reliability of the antifreeze proportioning device.

[0047] With reference to Figure 1 , Figure 2 and Figure 3 , the roller 235 is in dynamic sealing connection with the inner ring of the first sealing bearing 231 and the outer ring of the second sealing bearing 232.

[0048] With reference to Figure 1 , Figure 2 and Figure 3 , in the embodiment of the present application, the roller 235 is in dynamic sealing connection with the inner ring of the first sealing bearing 231 and the outer ring of the second sealing bearing 232, which can ensure that during the rotation of the cylindrical plug 22, the communication and plugging operations between the liquid storage hole 2201 and the liquid inlet connecting pipe 211 and the liquid outlet connecting pipe 212 are more stable and reliable, reduce the risk of liquid leakage, improve the sealing performance and metering accuracy of the device, so as to ensure that the stepless proportioning of the antifreeze can be achieved more precisely and better meet the requirements of the antifreeze proportioning components in different sales regions.

[0049] Refer to Figure 1 、 Figure 2 and Figure 3 Figure 3 , a liquid level gauge 13 is also provided on the liquid storage tank 1. In the embodiment of the present application, the liquid level gauge 13 can conveniently monitor the liquid volume in the liquid storage tank 1.

[0050] The implementation principle of an air-blowing volume metering stepless ratio antifreeze device in an embodiment of the present application is as follows: The number of liquid storage tanks 1 is two. One liquid storage tank 1 is used as a stock solution tank for storing the stock solution, and the other liquid storage tank 1 is used as a cold water tank for storing cold water. And the liquid levels of the cold water and the stock solution are both below the upper port of the constant pressure pipe 112.

[0051] When preparing the antifreeze, the liquid stored in the liquid storage hole 2201 is set as one unit. The air pump 12 injects gas into the liquid storage tank 1 to make the liquid storage tank 1 have a certain pressure. The motor 24 drives the cylindrical plug 22 to rotate, so that the liquid storage hole 2201 is first aligned with the liquid outlet joint 11, and the liquid in the liquid storage tank 1 flows along the liquid outlet pipe 111 to the liquid storage hole 2201. The gas in the liquid storage hole 2201 is discharged into the liquid storage tank 1 through the constant pressure pipe 112 to ensure that the liquid is fully filled in the liquid storage hole 2201 to form a unit of liquid. Then, the motor 24 drives the cylindrical plug 22 to continue rotating, and transports a unit of liquid to the outlet of the liquid outlet connecting pipe 212. Under the action of gravity, this unit of liquid flows into the antifreeze storage tank 4 through the multi-way joint 3. When the liquid storage tank 1 does not need to discharge liquid, the cylindrical plug 22 rotates to make the blocking area 2202 block the liquid inlet connecting pipe 211 and the liquid outlet connecting pipe 212.

[0052] In the above manner, the stock solution tank and the cold water tank respectively input the appropriate number of units of the stock solution and cold water into the antifreeze storage tank 4 according to the actual ratio requirements. The stock solution and cold water are mixed in the antifreeze storage tank 4 to form antifreeze.

[0053] Embodiment 2

[0054] Refer to Figure 4 Figure 4 , the difference between the second embodiment and the first embodiment is that there is no liquid distribution valve 2. An outlet valve 14 is provided at the bottom of the liquid storage tank 1. The liquid outlet joint 11 is installed on the tank cover of the liquid storage tank 1, and only a liquid outlet pipe 111 is provided in the liquid outlet joint 11. The liquid inlet end of the liquid outlet pipe 111 is arranged at the bottom of the liquid storage tank 1. After the liquid outlet end of the liquid outlet pipe 111 passes through the tank cover of the liquid storage tank 1, it extends downward and is connected to the liquid inlet end of the antifreeze storage tank 4. In the embodiment of the present application, when preparing the antifreeze, the air pump 12 injects air flow into the liquid storage tank 1 to increase the air pressure in the antifreeze storage tank 4, and then discharges the stock solution or cold water into the antifreeze storage tank 4 through the liquid outlet pipe 111.

[0055] The implementation principle of an air-blowing type volume metering stepless ratio antifreeze device in an embodiment of this application is as follows: There are two liquid storage tanks 1. One liquid storage tank 1 serves as a stock solution tank for storing the stock solution, and the other liquid storage tank 1 serves as a cold water tank for storing cold water. And the liquid levels of both the cold water and the stock solution are below the upper port of the constant pressure pipe 112.

[0056] When preparing the antifreeze, the air pump 12 injects air into the liquid storage tank 1 to increase the air pressure in the antifreeze storage tank 4, and then discharges the stock solution or cold water into the antifreeze storage tank 4 through the liquid outlet pipe 111.

[0057] In the above manner, the stock solution tank and the cold water tank adjust the amount of gas input by the corresponding air pump 12 according to the actual ratio requirement, and respectively input an appropriate number of units of the stock solution and cold water into the antifreeze storage tank 4. The stock solution and cold water are mixed in the antifreeze storage tank 4 to form the antifreeze.

[0058] Unless otherwise defined, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "a" or "one" do not indicate a quantity limitation either, but indicate that there is at least one. Words such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Upper", "lower", "left", "right", etc. are only used to indicate the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0059] The above are all optional embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. An air-blowing type volume metering stepless proportioning antifreeze device, characterized in that: It includes a coolant storage tank (4), a plurality of liquid storage tanks (1) and a plurality of liquid distribution valves (2), and the plurality of the liquid storage tanks (1) and the plurality of the liquid distribution valves (2) are arranged correspondingly; An air pump (12) is connected to the liquid storage tank (1), and a liquid outlet joint (11) is provided at the liquid outlet end of the liquid storage tank (1); The liquid distribution valve (2) includes a sealed housing (21) and a cylindrical plug (22), and a vertically arranged cylindrical cavity (2101) is provided in the sealed housing (21); A liquid inlet connecting pipe (211) is provided at the upper end of the sealed housing (21), a liquid outlet connecting pipe (212) is provided at the lower end of the sealed housing (21), and the liquid outlet end of the liquid inlet connecting pipe (211) and the liquid inlet end of the liquid outlet connecting pipe (212) are both communicated with the cylindrical cavity (2101); The cylindrical plug (22) is rotatably arranged coaxially in the cylindrical cavity (2101) and is in dynamic sealing contact with the sealed housing (21); A plurality of liquid storage holes (2201) arranged axially are provided on the cylindrical plug (22), and the plurality of the liquid storage holes (2201) are equidistantly spaced along the circumferential direction of the cylindrical plug (22); There is a blocking area (2202) at the part of the cylindrical plug (22) between two adjacent liquid storage holes (2201), and the blocking area (2202) is used to block the liquid inlet connecting pipe (211) and / or the liquid outlet connecting pipe (212); The liquid outlet end of the liquid outlet joint (11) is connected to the liquid inlet end of the liquid inlet connecting pipe (211); The liquid inlet of the coolant storage tank (4) is connected to a plurality of the liquid outlet connecting pipes (212); 2. The air-blowing type volume metering stepless proportioning antifreeze device according to claim 1, characterized in that: A vertically arranged liquid outlet pipe (111) and a constant pressure pipe (112) are provided in the liquid outlet joint (11), and the lower ports of the liquid outlet pipe (111) and the constant pressure pipe (112) are both communicated with the liquid inlet end of the liquid inlet connecting pipe (211); the upper port of the liquid outlet pipe (111) is arranged at the bottom of the liquid storage tank (1); the upper port of the constant pressure pipe (112) is arranged at the mouth of the liquid storage tank (1); 3. The air-blowing type volume metering stepless ratio antifreeze device according to claim 1, wherein: A motor (24) for driving the cylindrical plug (22) to rotate is installed on the outer side of the sealed housing (21); 4. The air-blowing type volume metering stepless proportioning antifreeze device according to claim 1, characterized in that: Dynamic sealing assemblies (23) are provided between both ends of the cylindrical plug (22) and the sealed housing (21), and the dynamic sealing assemblies (23) include a first sealing bearing (231), a second sealing bearing (232) and a plurality of first sealing gaskets (233) corresponding to the plurality of blocking areas (2202), the first sealing bearing (231) and the second sealing bearing (232) are both coaxial with the cylindrical plug (22), and both are adjacent to the cylindrical plug (22) at one end and are connected to the sealed housing (21) at the other end; The first sealing bearing (231) is arranged on the outer side of the second sealing bearing (232), and the liquid storage holes (2201) and the blocking areas (2202) are both located between the first sealing bearing (231) and the second sealing bearing (232); The first gasket (233) is disposed at the corresponding plugging area (2202), connected to the sealed housing (21), and also in contact with the plugging area (2202), the first sealed bearing (231), and the second sealed bearing (232).

5. The air-blowing type volume metering stepless proportioning antifreeze device according to claim 4, wherein: The inner ring of the first sealed bearing (231) and the outer ring of the second sealed bearing (232) are both connected to the cylindrical plug (22); The outer ring of the first sealed bearing (231) and the inner ring of the second sealed bearing (232) are both connected to the sealed housing (21).

6. The air-blowing type volume metering stepless ratio antifreeze device according to claim 5, wherein: The dynamic sealing assembly (23) further includes a plurality of second gaskets (234) corresponding to the plurality of plugging areas (2202). The second gaskets (234) are disposed at the corresponding plugging areas (2202) and connected to the cylindrical plug (22); The second gasket (234) is connected to the inner ring of the first sealed bearing (231) and the outer ring of the second sealed bearing (232); A plurality of rollers (235) are provided at each plugging area (2202) along the radial direction of the cylindrical plug (22). The rollers (235) are disposed between the first gasket (233) and the second gasket (234) and in contact with the first gasket (233) and the second gasket (234); One end of the roller (235) is rotatably connected to the inner ring of the first sealed bearing (231), and the other end is rotatably connected to the outer ring of the second sealed bearing (232).

7. An air-blowing type volume metering stepless proportioning antifreeze device according to claim 6, characterized in that: In the circumferential direction of the cylindrical plug (22), the two rollers (235) are respectively disposed at both ends of the orifice of the liquid storage hole (2201), and the plurality of rollers (235) are equidistantly distributed along the circumferential direction of the cylindrical plug (22).

8. An air-blowing type volume metering stepless ratio antifreeze device according to claim 6, characterized in that: The roller (235) is in dynamic sealing connection with the inner ring of the first sealed bearing (231) and the outer ring of the second sealed bearing (232).

9. The air-blowing type volume metering stepless proportioning antifreeze device according to claim 1, characterized in that: A liquid level gauge (13) is further provided on the liquid storage tank (1).

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