Liquid supply system
By using a middle barrier in the liquid supply system to separate the container cavity, install the evaporator and the fan unit, and using the box assembly to prevent disengagement and flushing system to simplify cleaning, the problems of low integration and complex structure of the liquid supply system are solved, achieving high integration, simple structure and convenient cleaning.
Patent Information
- Application Number
- CN202422235861.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing liquid supply systems have low integration and complex structure.
A liquid supply system is designed, including a refrigeration device and a box assembly. The housing container is divided into a first container and a second container using a middle barrier, and an evaporator and a fan group are arranged in the middle barrier. The fan group sends the cooled air into each container. The box assembly prevents the disengagement through the barrier. The flushing system realizes the cleaning of the pipes through the switching valve and the flushing joint.
It realizes high integration and simple structure, facilitates frosting treatment, reduces the thickness of the refrigeration device, is convenient to install, reduces the amount of cleaning liquid, and simplifies cleaning operations.
Smart Images

Figure CN223064144U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a liquid supply system. Background Art
[0002] The existing liquid supply system has low integration level and complex structure. Content of the Utility Model
[0003] The utility model aims to solve the above problems, and thus provides a liquid supply system. The liquid supply system includes a refrigeration device and a cartridge assembly. The refrigeration device includes a housing, a middle blocking member, an evaporator and a blower group. The middle blocking member is disposed in the housing and divides the housing cavity in the housing into a first cavity and a second cavity. The evaporator is disposed in the middle blocking member and can cool the air flowing through the evaporator. The blower group is disposed in the middle blocking member and can send the air cooled by the evaporator into the first cavity and the second cavity. The cartridge assembly includes a rack, a cartridge, a partition and a blocking member. The cartridge has an upper opening. The partition is disposed on the rack and can move relative to the rack. The blocking member is disposed on the partition so that when the cartridge is disposed between the rack and the partition, at least a part of the blocking member can extend into the upper opening to prevent the cartridge from disengaging from the rack.
[0004] Further, the middle blocking member includes a first partition and a second partition. The first partition and the second partition are vertically disposed in the housing at an interval to form a middle column cavity. The evaporator and the blower group are disposed in the middle column cavity between the first partition and the second partition.
[0005] Further, the blower group includes a first blower and a second blower. A first opening is provided on the first partition, and the first blower can send air into the first cavity through the first opening. A second opening is provided on the second partition, and the second blower can send air into the second cavity through the second opening. The first opening and the second opening are disposed above the evaporator. A third opening is provided on the first partition, and the air in the first cavity can return to the middle column cavity through the third opening. A fourth opening is provided on the second partition, and the air in the second cavity can return to the middle column cavity through the fourth opening. The third opening and the fourth opening are disposed below the evaporator.
[0006] Further, the rack includes a lower plate, a first retaining member, and a second retaining member. The partition plate is spaced apart from the lower plate by a distance via the first retaining member and the second retaining member for accommodating the cartridge. The blocking member is strip-shaped and is disposed obliquely to the partition plate. A first end of the blocking member is connected to the partition plate, and a second end of the blocking member extends toward the lower plate in the direction in which the cartridge enters the rack. During the process of the cartridge entering between the rack and the partition plate, the cartridge can push the blocking member, so that the partition plate moves away from the lower plate relative to the rack, enabling the blocking member to enter the upper opening.
[0007] Further, the liquid supply system further includes a flushing system, and the flushing system includes at least a pair of liquid discharging devices, an introducing pipeline, a leading-out pipeline, and a flushing joint. Each pair of liquid discharging devices includes a first cartridge, a first liquid supply pipeline, a second cartridge, and a second liquid supply pipeline. The first liquid supply pipeline is switchably connected to the first cartridge, so that the liquid in the first cartridge can flow out through the first liquid supply pipeline. The second liquid supply pipeline is switchably connected to the second cartridge, so that the liquid in the second cartridge can flow out through the second liquid supply pipeline. The introducing pipeline is switchably connected to the first liquid supply pipeline. The leading-out pipeline is switchably connected to the second liquid supply pipeline. The flushing joint is detachably connected to the first liquid supply pipeline and the second liquid supply pipeline. When the flushing joint connects the first liquid supply pipeline and the second liquid supply pipeline, the introducing pipeline is connected to the first liquid supply pipeline, and the leading-out pipeline is connected to the second liquid supply pipeline, the liquid flowing in from the introducing pipeline can flow out from the leading-out pipeline after sequentially passing through the first liquid supply pipeline, the flushing joint, and the second liquid supply pipeline, thereby cleaning the first liquid supply pipeline and the second liquid supply pipeline.
[0008] Further, the liquid supply system further includes a first switching valve and a second switching valve. The first switching valve can achieve that the first liquid supply pipeline is switchably connected to the first cartridge and that the introducing pipeline is switchably connected to the first liquid supply pipeline, so as to be able to select whether the first cartridge or the introducing pipeline is connected to the first liquid supply pipeline. The second switching valve can achieve that the second cartridge is switchably connected to the second liquid supply pipeline and that the leading-out pipeline is switchably connected to the second liquid supply pipeline, so as to be able to select whether the second cartridge or the leading-out pipeline is connected to the second liquid supply pipeline.
[0009] Further, the liquid supply system further includes a disinfected water box and a cleaning water pipe. The disinfected water box is connected to the introduction pipeline in a switchable manner, so that the liquid in the disinfected water box can flow out from the lead-out pipeline after passing through the introduction pipeline, the first liquid supply pipeline, the flushing joint and the second liquid supply pipeline, thereby cleaning the first liquid supply pipeline and the second liquid supply pipeline. The cleaning water pipe is connected to the introduction pipeline in a switchable manner, so that the liquid in the cleaning water pipe can flow out from the lead-out pipeline after passing through the introduction pipeline, the first liquid supply pipeline, the flushing joint and the second liquid supply pipeline, thereby cleaning the first liquid supply pipeline and the second liquid supply pipeline.
[0010] Further, the liquid supply system further includes a flushing joint assembly, and the flushing joint assembly includes a pipeline assembly and a flushing joint. The pipeline assembly includes at least a pair of pipes, and a pair of pipes includes a first liquid supply pipeline and a second liquid supply pipeline. The flushing joint is provided with at least one groove, and the groove is correspondingly arranged with the pair of pipes. When the pipeline assembly and the flushing joint are connected together, the groove can communicate the pair of pipes, so that the first liquid supply pipeline is communicated with the second liquid supply pipeline through the groove.
[0011] Further, the pipeline assembly further includes a base, and the at least a pair of pipes penetrate through the base. The flushing joint assembly further includes a connection structure arranged between the base and the flushing joint, so that the base and the flushing joint are detachably connected. The connection structure includes an internal thread arranged in a hole on the base and an external thread arranged on a column on the flushing joint.
[0012] Further, the liquid supply system further includes a pipeline joint, and the pipeline joint includes a pipe body, a protruding circular ring and a protruding elliptical ring. The pipe body defines a pipe channel extending along the pipe axis direction. The protruding circular ring is arranged on the pipe body. The protruding elliptical ring is arranged on the pipe body. The protruding circular ring and the protruding elliptical ring are arranged at an interval along the pipe axis direction. The pipe body, the protruding circular ring and the protruding elliptical ring are coaxially arranged. The outer diameter of the protruding circular ring is greater than or equal to the major axis of the protruding elliptical ring. Both the outer diameter of the protruding circular ring and the minor axis of the protruding elliptical ring are greater than the outer diameter of the pipe body.
[0013] The liquid supply system of the present application has at least the following advantages:
[0014] First, the liquid supply system of the present utility model has a high integration level and a simple structure.
[0015] Second, the evaporator and the fan of the refrigeration device of the present utility model are arranged between the first cavity and the second cavity. When frosting occurs at the evaporator, the operator can open the door of the refrigeration device to process the frosted part without taking out all the items in the refrigeration device.
[0016] Third, the refrigeration device of the present utility model has a simple structure. By arranging the evaporator between the first cavity and the second cavity, the thickness of the refrigeration device is reduced, thereby reducing the overall volume of the refrigeration device.
[0017] Fourth, the cartridge assembly of the present utility model has a simple structure and is convenient to install.
[0018] Fifth, the cartridge assembly of the present utility model can prevent the cartridge from being disengaged from the rack.
[0019] Sixth, the flushing system of the present utility model has a simple structure. During cleaning, the operator only needs to install the flushing connector, reducing the operation steps of the operator.
[0020] Seventh, the flushing system of the present utility model can clean the pipelines in units of "pairs", thereby reducing the consumption of cleaning liquids (such as disinfectant solution, clean water).
[0021] Eighth, the flushing connector assembly of the present utility model has a simple structure and is convenient to install.
[0022] The concept, specific structure and technical effects of the present utility model will be further described below in conjunction with the drawings to fully understand the purpose, features and effects of the present utility model. Description of the Drawings
[0023] Figure 1-2 is a perspective view of the liquid supply system of the present utility model;
[0024] Figure 3 is a perspective view of the liquid supply system of the present utility model without showing the first door;
[0025] Figure 4 is a perspective view of the refrigeration device of the present utility model;
[0026] Figure 5-6 is a perspective view of the refrigeration device of the present utility model without showing the first door and the second door;
[0027] Figure 7 is a perspective view of the refrigeration device of the present utility model without showing the first door, the second door, the first partition and the second partition;
[0028] Figure 8 is a perspective view of the cartridge assembly of the present utility model;
[0029] Figure 9 is an exploded view of the cartridge assembly of the present utility model;
[0030] Figure 10-11 is a cross-sectional view of the cartridge located on the rack of the present utility model;
[0031] Figure 12It is a perspective view of the pipe joint of the present utility model;
[0032] Figure 13 It is a side view of the pipe joint of the present utility model;
[0033] Figure 14 It is a top view of the pipe joint of the present utility model;
[0034] Figure 15 It is a top view of the upper plate of the present utility model;
[0035] Figure 16 It is a schematic cross-sectional view of the connection between the pipe joint and the upper plate of the present utility model;
[0036] Figure 17 It is another embodiment of the pipe joint of the present application;
[0037] Figure 18 It is a system diagram of the first embodiment of the flushing system of the present utility model;
[0038] Figure 19 It is a system diagram of the second embodiment of the flushing system of the present utility model;
[0039] Figure 20 It is a perspective view of the flushing joint assembly of the present utility model;
[0040] Figure 21 It is a perspective view of the pipe assembly of the present utility model;
[0041] Figure 22-23 It is a perspective view of the flushing joint of the present utility model;
[0042] Figure 24 It is a cross-sectional view of the connection between the pipe assembly and the flushing joint of the flushing joint assembly of the present utility model.
[0043] Explanation of the reference numerals in the drawings:
[0044] Housing 10, left plate 101, right plate 102, upper plate 103, lower plate 104, rear plate 105, middle column 106, first door 11, second door 12, middle blocking member 13, first cavity 21, second cavity 22, evaporator 30, first fan 31, second fan 32, first partition 41, second partition 42, first opening 51, second opening 52, third opening 61, fourth opening 62, rack 110, lower plate 111, left side plate 112, rear plate 113, upper plate 114, right side plate 115, partition 120, space 121, first holding member 122, second holding member 123, box 130, upper opening 131, rear wall 132, blocking member 140, first opening 151, second opening 152, first protrusion 161, second protrusion 162, flushing connector 210, first box 221, first liquid supply pipeline 231, second box 222, second liquid supply pipeline 232, introduction pipeline 241, extraction pipeline 242, main water supply pipe 243, main water return pipe 244, disinfection water box 251, cleaning water pipe 252, first switching valve 261, second switching valve 262, first on-off valve 263, second on-off valve 264, third on-off valve 265, fourth on-off valve 266, first pump 271, second pump 272, pipe body 310, protruding circular ring 311, protruding elliptical ring 312, pipe channel 320, elliptical hole 331, pipeline assembly 410, base 413, groove 421, first column 422, second column 423, handheld rod 426. Detailed implementation manners
[0045] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0046] It should be understood that although terms indicating directions, such as "upper", "lower", "left", "right", "front", "rear", etc., are used in the present utility model to describe various example structural parts and elements in the present utility model, these terms are only used for the convenience of description, and these terms are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present utility model can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations.
[0047] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the illustrations, rather than being drawn according to the number, shape, and size of the components in actual implementation. The types, quantities, and proportions of the components in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.
[0048] Some exemplary embodiments of the present invention are described for purposes of illustration. It is to be understood that the present invention can be implemented in other ways not specifically shown in the drawings.
[0049] As Figure 1-3 shown, the liquid supply system of the present invention includes a liquid storage part 1 and a liquid discharge part 2. The liquid storage part 1 includes a refrigeration device and a cartridge assembly. The cartridge assembly is used to store liquid. The refrigeration device is used to cool the liquid. The liquid discharge part 2 includes a pipe assembly 410 and a liquid discharge cavity 3. The pipe assembly 410 is in fluid communication with the cartridge 130 in the cartridge assembly, so that the liquid in the cartridge 130 can flow out through the pipe assembly 410. The user can place a container such as a cup in the liquid discharge cavity 3 and align the container with the pipe assembly 410 so that the liquid in the cartridge 130 flows into the container.
[0050] Next, refer to Figure 4-7 to introduce the refrigeration device:
[0051] As Figure 4 shown, the liquid storage part 1 includes a refrigeration device. The refrigeration device includes a housing 10. A housing cavity is defined in the housing 10. The housing 10 includes a left plate 101, a right plate 102, an upper plate 103, a lower plate 104, a rear plate 105, and a middle column 106. The left plate 101 and the right plate 102 are respectively arranged on the left and right sides. The upper plate 103 and the lower plate 104 are respectively arranged on the upper and lower sides. The middle column 106 and the rear plate 105 are respectively arranged on the front and rear sides. The left plate 101, the upper plate 103, the right plate 102, and the lower plate 104 are sequentially connected in the circumferential direction to enclose. The left plate 101, the upper plate 103, the right plate 102, and the lower plate 104 are respectively connected to the rear plate 105 to form a housing cavity with a front opening. The middle column 106 is vertically arranged between the upper plate 103 and the lower plate 104 and is connected to both of them. The housing 10 further includes a first door 11 and a second door 12. The first door 11 and the second door 12 can move or rotate relative to the middle column 106.
[0052] As Figure 5-6As shown in the figure, the refrigeration device of the present utility model further includes a middle blocking member 13. The middle blocking member 13 is arranged in the housing 10 and connected to the middle column 106 and the rear plate 105, thereby dividing the housing cavity into a first cavity 21 and a second cavity 22. The first door 11 and the second door 12 are correspondingly arranged with the first cavity 21 and the second cavity 22, so as to be able to open or close the first cavity 21 and the second cavity 22. The middle blocking member 13 includes a first partition plate 41 and a second partition plate 42. The first partition plate 41, the second partition plate 42, the left plate 101 and the right plate 102 are arranged in parallel. The first partition plate 41 and the second partition plate 42 are vertically arranged in the housing cavity at an interval, so as to form a middle column cavity together with the middle column 106 and the rear plate 105.
[0053] As Figure 5-7 shown in the figure, the refrigeration device of the present utility model further includes an evaporator 30 and a fan group. The evaporator 30 and the fan group are arranged in the middle column cavity of the middle blocking member 13. The evaporator 30 can cool the air flowing through it. The fan group can send the air cooled by the evaporator 30 into the first cavity 21 and the second cavity 22. The fan group includes a first fan 31 and a second fan 32. The first partition plate 41 is provided with a first opening 51 and a third opening 61. The second partition plate 42 is provided with a second opening 52 and a fourth opening 62. The first opening 51 and the second opening 52 are arranged at the same height and respectively correspond to the first fan 31 and the second fan 32. The first fan 31 and the second fan 32 are arranged above the evaporator 30. The third opening 61 and the fourth opening 62 are arranged below the evaporator 30. The first fan 31 can send the air cooled by the evaporator 30 into the first cavity 21 through the first opening 51. The air in the first cavity 21 can return to the middle column cavity through the third opening 61 and be cooled by the evaporator 30 again. The second fan 32 can send the air cooled by the evaporator 30 into the second cavity 22 through the second opening 52. The air in the second cavity 22 can return to the middle column cavity through the fourth opening 62 and be cooled by the evaporator 30 again.
[0054] The refrigeration device of the present utility model has at least the following advantages:
[0055] First, the evaporator and the fan of the refrigeration device of the present utility model are arranged between the first cavity and the second cavity. When frosting occurs at the evaporator, the operator can open the door of the refrigeration device to process the frosted part without taking out all the items in the refrigeration device.
[0056] Second, the structure of the refrigeration device of the present utility model is simple. By arranging the evaporator between the first cavity and the second cavity, the thickness of the refrigeration device is reduced, so as to reduce the overall volume of the refrigeration device.
[0057] Next, refer to Figure 8-11 to introduce the box assembly:
[0058] As Figure 8-9 shown, the box assembly of the present utility model includes a frame 110, a partition 120, a box 130, and a blocking member 140. The frame 110 includes a lower plate 111, a left side plate 112, a rear plate 113, an upper plate 114, and a right side plate 115. The lower plate 111, the left side plate 112, the rear plate 113, the upper plate 114, and the right side plate 115 are connected and enclosed to form a frame, thereby forming an outer frame with a front outlet. The partition 120 is disposed on the frame 110, thereby dividing the space in the frame 110 into at least two parts. The partition 120 and the lower plate 111 form a space 121, and the box 130 can extend into the space 121. The distance between the partition 120 and the lower plate 111 is adapted to the height of the box 130. The distance between the partition 120 and the lower plate 111 is greater than or slightly greater than the height of the box 130. The box 130 has an upper opening 131. When the box 130 extends into the space 121, the partition 120 can serve as a cover for the box 130, thereby blocking at least a part of the upper opening 131. The blocking member 140 is disposed on the partition 120. When the box 130 extends into the space 121, at least a part of the blocking member 140 can extend into the upper opening 131, thereby preventing the box 130 from coming out of the frame 110.
[0059] As Figure 8-9 shown, the box assembly of the present utility model further includes a first retaining member 122 and a second retaining member 123. The partition 120 is spaced apart from the lower plate 111 by a distance via the first retaining member 122 and the second retaining member 123 to form the above-mentioned space 121. In the present utility model, the first retaining member 122 is the above-mentioned left side plate 112. The upper end of the second retaining member 123 is connected to the upper plate 114 and extends downward from the lower surface of the upper plate 114.
[0060] As Figure 8-9As shown, the partition 120 of the present utility model can move relative to the rack 110. A first opening 151 is provided on the first retaining member 122. A second opening 152 is provided on the second retaining member 123. Both the first opening 151 and the second opening 152 face upward for receiving the partition 120. The partition 120 is provided with a first protrusion 161 and a second protrusion 162 adapted to the first opening 151 and the second opening 152. The first protrusion 161 extends leftward from the left edge of the partition 120. The second protrusion 162 extends rightward from the right edge of the partition 120. The size of the first opening 151 is greater than or slightly greater than the size of the first protrusion 161, and the size of the second opening 152 is greater than or slightly greater than the size of the second protrusion 162, so that the first protrusion 161 and the second protrusion 162 can be held in the first opening 151 and the second opening 152 by gravity. When the partition 120 is subjected to an external force, especially an external force from bottom to top, the partition 120 can move upward relative to the rack 110, thereby increasing the distance between the partition 120 and the rack 110.
[0061] As Figure 9 shown, the blocking member 140 is disposed below the partition 120, so that when the blocking member 140 is disposed on the rack 110, the distance between the blocking member 140 and the lower plate 111 is less than the height of the box 130. The blocking member 140 of the present utility model is strip-shaped and is disposed obliquely to the partition 120. The blocking member 140 is connected to the lower surface of the partition 120 and extends obliquely away from the lower surface of the partition 120 (i.e., backward). The first end of the blocking member 140 is connected to the blocking member 140, and the first end of the blocking member 140 extends downward toward the lower plate 111 along the direction in which the box 130 enters the rack 110 (i.e., backward).
[0062] As Figure 10 shown, when the box 130 enters the space 121 formed by the rack 110 and the partition 120, the box 130 moves backward until the rear wall 132 of the box 130 contacts the blocking member 140. Since the blocking member 140 is disposed obliquely to the partition 120, the box 130 will apply an upward force to the blocking member 140, so that the partition 120 moves upward relative to the rack 110 and away from the lower plate 111. The blocking member 140 also moves upward as the partition 120 moves upward, the distance between the blocking member 140 and the lower plate 111 increases, the blocking member 140 no longer obstructs the box 130, and the box 130 enters the space 121.
[0063] As Figure 10 shown, when the rear wall 132 of the box 130 passes over the blocking member 140. The partition 120 and the blocking member 140 are re-held in place due to gravity. The blocking member 140 enters the upper opening 131 of the box 130.
[0064] As Figure 11As shown, when the user pulls the cartridge 130 to access the contents of the cartridge 130, the blocking member 140 blocks the rear wall 132 of the cartridge 130, thereby preventing the cartridge 130 from disengaging from the rack 110.
[0065] The cartridge assembly of the present utility model has at least the following advantages:
[0066] First, the cartridge assembly of the present utility model has a simple structure and is convenient to install.
[0067] Second, the cartridge assembly of the present utility model can prevent the cartridge from disengaging from the rack.
[0068] Third, the operator can operate with one hand to place the cartridge of the present utility model in place on the rack.
[0069] Although in the present utility model, a plurality of stacked racks 110 are placed in the housing cavity, in other embodiments, the lower plate 111, the left side plate 112, the rear plate 113, the upper plate 114 and / or the right side plate 115 of the rack 110 can be formed by at least a part of the housing 10 of the refrigeration device, thereby reducing the manufacturing cost and expanding the space for storing the cartridges 130.
[0070] As Figure 1-3 shown, for the pipe assembly 410 to be in fluid communication with the cartridge 130 in the cartridge assembly, it is necessary to make the connecting pipe pass through the housing 10 of the refrigeration device. For example, it needs to pass through the upper plate 103 of the housing 10. The liquid supply system of the present utility model further includes a pipe joint, so that the connecting pipe located in the liquid storage part 1 can be connected to the connecting pipe located in the liquid outlet part 2.
[0071] Next, refer to Figure 12-17 to introduce the pipe joint:
[0072] As Figure 12-14 shown, the pipe joint of the present utility model includes a pipe body 310, a protruding circular ring 311 and a protruding elliptical ring 312. The pipe body 310 has a pipe axis. The pipe body 310 defines a pipe channel 320 extending along the pipe axis direction. Both ends of the pipe body 310 can be connected to a first pipe (for example, the connecting pipe located in the liquid storage part 1) and a second pipe (for example, the connecting pipe located in the liquid outlet part 2), so that a liquid (for example, beverage concentrate, flushing liquid) flows from the first pipe into the second pipe through the pipe joint. The protruding circular ring 311 and the protruding elliptical ring 312 are arranged on the pipe body 310 and are spaced apart by a distance in the pipe axis direction. This distance is greater than the thickness of the upper plate 103.
[0073] As Figure 12-14As shown, the pipe body 310 is a circular pipe. The outer contour of the protruding circular ring 311 is circular. The outer contour of the protruding elliptical ring 312 is elliptical. The pipe body 310, the protruding circular ring 311, and the protruding elliptical ring 312 are coaxially arranged. That is, the centers of the pipe body 310, the protruding circular ring 311, and the protruding elliptical ring 312 are on the same straight line. The diameter of the outer contour of the protruding circular ring 311 is called the outer diameter of the protruding circular ring 311. The outer contour of the protruding elliptical ring 312 has a major axis and a minor axis. The major axis is the distance between the two farthest points on the outer contour of the protruding elliptical ring 312. The minor axis is the distance between the two closest points on the outer contour of the protruding elliptical ring 312. The major axis and the minor axis are perpendicular. The major axis is greater than the minor axis. The outer diameter of the protruding circular ring 311 is greater than or equal to the major axis of the protruding elliptical ring 312. The outer diameter of the protruding circular ring 311 and the minor axis of the protruding elliptical ring 312 are both greater than the outer diameter of the pipe body 310, so that the protruding circular ring 311 and the protruding elliptical ring 312 protrude from the pipe body 310.
[0074] As Figure 15 shown, an elliptical hole 331 is provided on the upper plate 103. The elliptical hole 331 penetrates the upper plate 103 along the thickness direction of the upper plate 103, and the size of the elliptical hole 331 is slightly larger than or equal to the size of the protruding elliptical ring 312, so that the pipe joint can pass through the elliptical hole 331.
[0075] As Figure 16 shown, the process of connecting the pipe joint to the upper plate 103 is as follows:
[0076] The protruding elliptical ring 312 is aligned with the elliptical hole 331 on the upper plate 103, and the protruding elliptical ring 312 is passed through the elliptical hole 331. After the upper plate 103 is arranged between the protruding circular ring 311 and the protruding elliptical ring 312, the pipe joint is rotated. For example, the pipe joint is rotated 90°. In this way, the major axis and the minor axis of the protruding elliptical ring 312 are staggered from the major axis and the minor axis of the elliptical hole 331, and the protruding elliptical ring 312 cannot escape from the elliptical hole 331. On the other side, because the outer diameter of the protruding circular ring 311 is greater than or equal to the major axis of the protruding elliptical ring 312, the protruding circular ring 311 cannot escape from the elliptical hole 331.
[0077] As Figure 12-16 shown in the embodiment, both ends of the pipe body 310 can be connected to the first pipe and the second pipe, so that the liquid (for example, beverage concentrate, flushing liquid) flows from the first pipe into the second pipe through the pipe joint. For example, the first pipe and the second pipe are plastic pipes, which can be inserted at both ends of the pipe body 310.
[0078] As Figure 17 shown in the embodiment, an external thread is provided at one end of the pipe body 310, so that it can be connected to the first pipe or the second pipe. For example, the first pipe or the second pipe is a metal pipe, and an internal thread is provided in the metal pipe, which is matched with the external thread at one end of the pipe body 310 to achieve the connection.
[0079] The pipe joint of the present utility model has at least the following advantages:
[0080] First, the pipe joint of the present utility model can be directly connected to the board and is only one component, with a small number of components.
[0081] Second, no additional threaded components need to be provided on the pipe joint of the present utility model, so that the pipe joint can be connected to the board.
[0082] The liquid supply system of the present utility model needs to be cleaned, especially the cleaning box 130, the pipe assembly 410, and the connecting pipe (for example, the first liquid supply pipeline 231 and the second liquid supply pipeline 232 in the following text) between the cleaning box 130 and the pipe assembly 410. Therefore, the liquid supply system of the present utility model further includes a flushing system. The following refers to Figure 18-19 to introduce the flushing system:
[0083] As Figure 18 shown, the flushing system of the present utility model includes at least a pair of liquid outlet devices. Each pair of liquid outlet devices includes a first box 221, a first liquid supply pipeline 231, a second box 222, and a second liquid supply pipeline 232. The first box 221 is used to accommodate the first liquid. The second box 222 is used to accommodate the second liquid. The first liquid supply pipeline 231 is switchably connected to the first box 221. When the first liquid supply pipeline 231 is connected to the first box 221, the first liquid in the first box 221 flows out through the first liquid supply pipeline 231. The second liquid supply pipeline 232 is switchably connected to the second box 222. When the second liquid supply pipeline 232 is connected to the second box 222, the second liquid in the second box 222 flows out through the second liquid supply pipeline 232.
[0084] As Figure 18 shown, the flushing system of the present utility model further includes an introduction pipeline 241, an extraction pipeline 242, and a flushing joint 210. The introduction pipeline 241 is used to introduce cleaning liquid (for example, disinfectant, clean water). The introduction pipeline 241 is switchably connected to the first liquid supply pipeline 231. The extraction pipeline 242 is switchably connected to the second liquid supply pipeline 232. The flushing joint 210 is detachably connected to the first liquid supply pipeline 231 and the second liquid supply pipeline 232. When the flushing joint 210 connects the first liquid supply pipeline 231 and the second liquid supply pipeline 232, the introduction pipeline 241 is connected to the first liquid supply pipeline 231, and the extraction pipeline 242 is connected to the second liquid supply pipeline 232, the liquid flowing in from the introduction pipeline 241 (for example, disinfectant, clean water) can flow through the first liquid supply pipeline 231, the flushing joint 210, and the second liquid supply pipeline 232 in sequence, so as to disinfect / clean the two liquid supply pipelines at one time.
[0085] As Figure 18As shown, the flushing system of the present utility model further includes a disinfected water box 251. The disinfected water box 251 is connected to the introduction pipeline 241 in a switchable manner, so that the liquid (for example, disinfectant) in the disinfected water box 251 can flow through the introduction pipeline 241, the first liquid supply pipeline 231, the flushing joint 210, and the second liquid supply pipeline 232 in sequence and then flow out from the lead-out pipeline 242, thereby disinfecting the two liquid supply pipelines at one time.
[0086] As Figure 18 shown, the flushing system of the present utility model further includes a cleaning water pipe 252. The cleaning water pipe 252 is connected to the introduction pipeline 241 in a switchable manner, so that the liquid (for example, clean water) in the cleaning water pipe 252 can flow through the introduction pipeline 241, the first liquid supply pipeline 231, the flushing joint 210, and the second liquid supply pipeline 232 in sequence and then flow out from the lead-out pipeline 242, thereby cleaning the two liquid supply pipelines at one time.
[0087] As Figure 18 shown, the flushing system of the present utility model further includes a first switching valve 261 and a second switching valve 262. The first switching valve 261 can switchably connect the first box 221 to the first liquid supply pipeline 231 and can switchably connect the introduction pipeline 241 to the first liquid supply pipeline 231, so that it is possible to select whether the first box 221 or the introduction pipeline 241 is connected to the first liquid supply pipeline 231. The second switching valve 262 can switchably connect the second box 222 to the second liquid supply pipeline 232 and can switchably connect the lead-out pipeline 242 to the second liquid supply pipeline 232, so that it is possible to select whether the second box 222 or the lead-out pipeline 242 is connected to the second liquid supply pipeline 232. In the present utility model, the first switching valve 261 and the second switching valve 262 are three-way valves, but any valve or combination of valves that can achieve the above functions of the first switching valve 261 and the second switching valve 262 is within the protection scope of the present utility model. The first switching valve 261 and the second switching valve 262 are solenoid valves.
[0088] As Figure 18 shown, each pair of liquid discharging devices of the flushing system of the present utility model further includes a first pump 271 and a second pump 272. The first pump 271 is arranged on the first liquid supply pipeline 231 and downstream of the first switching valve 261, so that the liquid in the first box 221, the disinfected water box 251, or the cleaning water pipe 252 can all flow through the first pump 271. The second pump 272 is arranged on the second liquid supply pipeline 232 and downstream of the second switching valve 262, so that the liquid in the first box 221, the disinfected water box 251, or the cleaning water pipe 252 can all flow through the second pump 272.
[0089] As Figure 18As shown in the figure, the flushing system of the present utility model further includes a first on-off valve 263 and a second on-off valve 264. The first on-off valve 263 can connect the disinfected water box 251 to the introduction pipeline 241 in a switchable manner. The second on-off valve 264 can connect the cleaning water pipe 252 to the introduction pipeline 241 in a switchable manner. In the present utility model, the first on-off valve 263 and the second on-off valve 264 are switch valves, but any valve or combination of valves that can achieve the above functions of the first on-off valve 263 and the second on-off valve 264 are within the protection scope of the present utility model. The first on-off valve 263 and the second on-off valve 264 are solenoid valves.
[0090] As Figure 18 shown in the figure, the flushing system of the present utility model further includes a main water supply pipe 243. The main water supply pipe 243 connects the disinfected water box 251 and the cleaning water pipe 252. The first on-off valve 263 and the second on-off valve 264 are arranged on the main water supply pipe 243, and the introduction pipeline 241 is connected to the main water supply pipe 243 between the first on-off valve 263 and the second on-off valve 264.
[0091] As Figure 18As shown, the flushing system of the present utility model has a normal mode, a first cleaning mode, and a second cleaning mode. When the flushing system is in the normal mode, the flushing joint 210 does not connect the first liquid supply pipeline 231 and the second liquid supply pipeline 232. The first liquid supply pipeline 231 is communicated with the first cartridge 221, and the introduction pipeline 241 is disconnected from the first liquid supply pipeline 231, so that the liquid in the first cartridge 221 flows out through the first liquid supply pipeline 231. And the second liquid supply pipeline 232 is communicated with the second cartridge 222, and the lead-out pipeline 242 is disconnected from the second liquid supply pipeline 232, so that the liquid in the second cartridge 222 flows out through the second liquid supply pipeline 232. When the flushing system is in the first cleaning mode, the flushing joint 210 connects the first liquid supply pipeline 231 and the second liquid supply pipeline 232. The first liquid supply pipeline 231 is disconnected from the first cartridge 221, and the second liquid supply pipeline 232 is disconnected from the second cartridge 222. The cleaning water pipe 252 is disconnected from the introduction pipeline 241, and the disinfection water cartridge 251 is communicated with the introduction pipeline 241. The introduction pipeline 241 is communicated with the first liquid supply pipeline 231, and the lead-out pipeline 242 is communicated with the second liquid supply pipeline 232, so that the liquid in the disinfection water cartridge 251 can flow out from the lead-out pipeline 242 after passing through the introduction pipeline 241, the first liquid supply pipeline 231, the flushing joint 210, and the second liquid supply pipeline 232 in sequence. When the flushing system is in the second cleaning mode, the flushing joint 210 connects the first liquid supply pipeline 231 and the second liquid supply pipeline 232. The first liquid supply pipeline 231 is disconnected from the first cartridge 221, and the second liquid supply pipeline 232 is disconnected from the second cartridge 222. The disinfection water cartridge 251 is disconnected from the introduction pipeline 241, and the cleaning water pipe 252 is communicated with the introduction pipeline 241. The introduction pipeline 241 is communicated with the first liquid supply pipeline 231, and the lead-out pipeline 242 is communicated with the second liquid supply pipeline 232, so that the liquid in the cleaning water pipe 252 can flow out from the lead-out pipeline 242 after passing through the introduction pipeline 241, the first liquid supply pipeline 231, the flushing joint 210, and the second liquid supply pipeline 232 in sequence.
[0092] As Figure 19As shown in the figure, the flushing system of the present utility model further includes a main return pipe 244, a third on-off valve 265, and a fourth on-off valve 266. The main return pipe 244 is connected to the disinfection water box 251 and the cleaning water pipe 252. The third on-off valve 265 and the fourth on-off valve 266 are arranged on the main return pipe 244, and the lead-out pipe 242 is connected to the main return pipe 244 between the third on-off valve 265 and the fourth on-off valve 266. The third on-off valve 265 can connect the disinfection water box 251 to the lead-out pipe 242 in a switchable manner. The fourth on-off valve 266 can connect the cleaning water pipe 252 to the lead-out pipe 242 in a switchable manner. In the present utility model, the third on-off valve 265 and the fourth on-off valve 266 are switch valves, but any valve or combination of valves that can achieve the above functions of the third on-off valve 265 and the fourth on-off valve 266 are within the protection scope of the present utility model. The third on-off valve 265 and the fourth on-off valve 266 are solenoid valves.
[0093] The introduction pipe, the lead-out pipe, the first switching valve, and the second switching valve of the flushing system of the present utility model are arranged corresponding to each pair of liquid output devices.
[0094] The flushing system of the present utility model has at least the following advantages:
[0095] First, the structure of the flushing system of the present utility model is simple. During cleaning, the operator only needs to install the flushing joint, reducing the operation steps of the operator.
[0096] Second, the flushing system of the present utility model can clean the pipelines in units of "pairs", thereby reducing the consumption of cleaning liquids (such as disinfectant and clean water).
[0097] The flushing joint 210 in the above flushing system is specifically matched with the first liquid supply pipe 231 and the second liquid supply pipe 232, which will be introduced with reference to Figure 20-24 and introduced in combination with the flushing joint assembly in the following text:
[0098] As Figure 20 shown, the flushing joint assembly of the present utility model includes a pipeline assembly 410 and a flushing joint 210. The pipeline assembly 410 and the flushing joint 210 are detachably connected through a connection structure. When the pipeline assembly 410 needs to be flushed, the flushing joint 210 is connected to the pipeline assembly 410. When the pipeline assembly 410 normally outputs liquid, the flushing joint 210 is removed from the pipeline assembly 410.
[0099] As Figure 20-21As shown, the pipe assembly 410 includes a base 413 and at least a pair of pipes. The at least a pair of pipes are disposed on the base 413 and penetrate through the base 413, such that the liquid flowing in the at least a pair of pipes can flow from one side of the base 413 to the other side. In an embodiment of the present utility model, the base 413 is a plate. In other embodiments, the base 413 may also be of other shapes.
[0100] As Figure 20-21 shown, in an embodiment of the present utility model, the pipe assembly 410 includes a plurality of pairs of pipes and is arranged in a form that is roughly divided into two groups. In other embodiments, the pipe assembly 410 including at least a pair of pipes can cooperate with the flushing joint 210 of the present utility model.
[0101] As Figure 20-21 and Figure 24 shown, each pair of pipes includes a first liquid supply line 231 and a second liquid supply line 232. When the pipe assembly 410 normally outputs liquid, the liquid in both the first liquid supply line 231 and the second liquid supply line 232 flows from one side of the base 413 to the other side. When the pipe assembly 410 needs to be flushed, the flushing joint 210 is connected to the pipe assembly 410, such that the first liquid supply line 231 and the second liquid supply line 232 are connected in series. The cleaning liquid (e.g., water) can flow through the first liquid supply line 231 and then into the flushing joint 210, and subsequently into the second liquid supply line 232, thereby cleaning a pair of pipes at one time. In other embodiments, the cleaning liquid (e.g., water) can flow through the second liquid supply line 232 and then into the flushing joint 210, and subsequently into the first liquid supply line 231, thereby cleaning a pair of pipes at one time.
[0102] As Figure 20-21 shown, the connection structure includes a first hole 14 and a second hole 15. The first hole 14 and the second hole 15 are disposed on the base 413 on both sides of the at least a pair of pipes and penetrate through the base 413. Threads are provided on the circumferential wall surfaces of the first hole 14 and the second hole 15 to form internal threads for cooperating with the flushing joint 210 to form a detachable connection.
[0103] As Figure 20 、 Figure 22 and Figure 24 shown, the flushing joint 210 is generally a cuboid. At least one groove 421 is provided on the flushing joint 210. Each groove 421 is correspondingly disposed with a pair of pipes, such that when the pipe assembly 410 and the flushing joint 210 are connected together, the groove 421 can communicate with its corresponding pair of pipes. As described above, the groove 421 can communicate with the first liquid supply line 231 and the second liquid supply line 232 in its corresponding pair of pipes. Each groove 421 is recessed from the outer surface of the flushing joint 210 and can accommodate at least a part of its corresponding first liquid supply line 231 and at least a part of the second liquid supply line 232.
[0104] As Figure 22 shown, when at least two slots 421 are provided on the flushing joint 210, the at least two slots 421 are each recessed inwardly from the same outer surface of the flushing joint 210. In the present utility model, each slot 421 is recessed downwardly from the upper surface of the flushing joint 210.
[0105] As Figure 20 and Figure 22 shown, the circumferential dimension of each slot 421 is greater than the outer dimension of the first liquid supply pipeline 231 and the outer dimension of the second liquid supply pipeline 232, so that at least a part of the first liquid supply pipeline 231 and at least a part of the second liquid supply pipeline 232 can be received in their corresponding slots 421.
[0106] As Figure 20 and Figure 22 shown, the connection structure includes a first post 422 and a second post 423. The first post 422 and the second post 423 are provided on the flushing joint 210. Threads are provided on the circumferential wall surfaces of the first post 422 and the second post 423, so as to form external threads for cooperating with the internal threads of the first hole 14 and the second hole 15, thereby forming a detachable connection.
[0107] As Figure 20 and Figure 22-23 shown, the first post 422 is connected to the first knob 24, and the second post 423 is connected to the second knob 25, so that when the first knob 24 rotates, the first post 422 also rotates, and when the second knob 25 rotates, the second post 423 also rotates. The external threads of the first knob 24 and the first post 422 are provided on opposite sides of the flushing joint 210, and the external threads of the second knob 25 are provided on opposite sides of the flushing joint 210. The user can rotate the first post 422 and the second post 423 by rotating the first knob 24 and the second knob 25, so as to connect or disconnect the base 413 from the flushing joint 210.
[0108] In the embodiments of the present utility model, the number of the posts and the knobs are correspondingly provided, and the number of the external threads and the internal threads are correspondingly provided. In other embodiments, at least one post and the knobs, external threads and internal threads corresponding to its number are sufficient.
[0109] As Figure 20 and Figure 22-23 shown, the flushing joint assembly further includes a hand-held rod 426. The hand-held rod 426 is connected to the flushing joint 210, so that the user can well hold the flushing joint 210 in place during the process of connecting the pipeline assembly 410 and the flushing joint 210. The hand-held rod 426 and the external threads are provided on opposite sides of the flushing joint 210.
[0110] The flushing joint assembly of the present utility model has at least the following advantages:
[0111] First, the flushing joint assembly of the present utility model has a simple structure and is convenient to install.
[0112] Second, the flushing joint assembly of the present utility model can clean at least a pair of tubes at one time, improving the cleaning efficiency.
[0113] Third, the flushing joint assembly of the present utility model can save the consumption of cleaning agents (such as disinfectants, scale removers, clear water, etc.), because the cleaning agent flushed at one time can clean more tubes.
[0114] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.
Claims
1. A liquid supply system, characterized in that, Comprising: A refrigeration device, the refrigeration device comprising: A housing (10); A middle blocking member (13), disposed in the housing (10) and separating the housing cavity in the housing (10) into a first cavity (21) and a second cavity (22); An evaporator (30), disposed in the middle blocking member (13) and capable of cooling the air flowing through the evaporator (30); and A blower group, disposed in the middle blocking member (13) and capable of sending the air cooled by the evaporator (30) into the first cavity (21) and the second cavity (22); and A cartridge assembly, the cartridge assembly comprising: A rack (110); A cartridge (130) having an upper opening (131); A partition (120), disposed on the rack (110) and capable of moving relative to the rack (110); and A blocking member (140), disposed on the partition (120) such that when the cartridge (130) is disposed between the rack (110) and the partition (120), at least a portion of the blocking member (140) can extend into the upper opening (131) to prevent the cartridge (130) from disengaging from the rack (110).
2. The liquid supply system according to claim 1, wherein: The middle blocking member (13) includes a first partition (41) and a second partition (42), the first partition (41) and the second partition (42) are vertically disposed in the housing (10) with a distance therebetween to form a middle column cavity; The evaporator (30) and the blower group are disposed in the middle column cavity between the first partition (41) and the second partition (42).
3. The liquid supply system according to claim 2, wherein: The blower group includes a first blower (31) and a second blower (32); A first opening (51) is provided on the first partition (41), and the first blower (31) can send air into the first cavity (21) through the first opening (51); A second opening (52) is provided on the second partition (42), and the second blower (32) can send air into the second cavity (22) through the second opening (52); The first opening (51) and the second opening (52) are disposed above the evaporator (30); A third opening (61) is provided on the first partition (41), and the air in the first cavity (21) can return to the middle column cavity through the third opening (61); A fourth opening (62) is provided on the second partition (42), and the air in the second cavity (22) can return to the middle column cavity through the fourth opening (62); The third opening (61) and the fourth opening (62) are disposed below the evaporator (30).
4. The liquid supply system according to claim 1, wherein: The rack (110) includes a lower plate (111), a first retaining member (121), and a second retaining member (122). The partition (120) is spaced apart from the lower plate (111) by a distance via the first retaining member (121) and the second retaining member (122) for accommodating the cartridge (130). The blocking member (140) is strip-shaped and is disposed obliquely to the partition (120). A first end of the blocking member (140) is connected to the partition (120), and a second end of the blocking member (140) extends toward the lower plate (111) in the direction in which the cartridge (130) enters the rack (110). During the process of the cartridge (130) entering between the rack (110) and the partition (120), the cartridge (130) can push the blocking member (140), so that the partition (120) moves away from the lower plate (111) relative to the rack (110), enabling the blocking member (140) to enter the upper opening (131).
5. The liquid supply system according to claim 1, characterized in that, It further includes: A flushing system, which includes: At least one pair of liquid discharging devices. Each pair of liquid discharging devices includes a first cartridge (221), a first liquid supply pipeline (231), a second cartridge (222), and a second liquid supply pipeline (232). The first liquid supply pipeline (231) is switchably connected to the first cartridge (221), so that the liquid in the first cartridge (221) can flow out through the first liquid supply pipeline (231). The second liquid supply pipeline (232) is switchably connected to the second cartridge (222), so that the liquid in the second cartridge (222) can flow out through the second liquid supply pipeline (232). An introducing pipeline (241), which is switchably connected to the first liquid supply pipeline (231). A leading-out pipeline (242), which is switchably connected to the second liquid supply pipeline (232); and A flushing joint (210), which is detachably connected to the first liquid supply pipeline (231) and the second liquid supply pipeline (232). When the flushing joint (210) connects the first liquid supply pipeline (231) and the second liquid supply pipeline (232), the introducing pipeline (241) is connected to the first liquid supply pipeline (231), and the leading-out pipeline (242) is connected to the second liquid supply pipeline (232), the liquid flowing in from the introducing pipeline (241) can flow out from the leading-out pipeline (242) after passing through the first liquid supply pipeline (231), the flushing joint (210), and the second liquid supply pipeline (232) in sequence, thereby cleaning the first liquid supply pipeline (231) and the second liquid supply pipeline (232).
6. The liquid supply system according to claim 5, characterized in that, It further includes: A first switching valve (261) capable of selectively connecting the first liquid supply pipeline (231) to the first cartridge (221) and selectively connecting the introduction pipeline (241) to the first liquid supply pipeline (231), so as to be able to select either the first cartridge (221) or the introduction pipeline (241) to be connected to the first liquid supply pipeline (231); and A second switching valve (262) capable of selectively connecting the second cartridge (222) to the second liquid supply pipeline (232) and selectively connecting the outlet pipeline (242) to the second liquid supply pipeline (232), so as to be able to select either the second cartridge (222) or the outlet pipeline (242) to be connected to the second liquid supply pipeline (232).
7. The liquid supply system according to claim 5, wherein It further includes: A disinfectant water cartridge (251) connected to the introduction pipeline (241) in a switchable manner, so that the liquid in the disinfectant water cartridge (251) can flow out from the outlet pipeline (242) after passing through the introduction pipeline (241), the first liquid supply pipeline (231), the flushing joint (210) and the second liquid supply pipeline (232), thereby cleaning the first liquid supply pipeline (231) and the second liquid supply pipeline (232); and A cleaning water pipe (252) connected to the introduction pipeline (241) in a switchable manner, so that the liquid in the cleaning water pipe (252) can flow out from the outlet pipeline (242) after passing through the introduction pipeline (241), the first liquid supply pipeline (231), the flushing joint (210) and the second liquid supply pipeline (232), thereby cleaning the first liquid supply pipeline (231) and the second liquid supply pipeline (232).
8. The liquid supply system according to claim 1, wherein It further includes: A flushing joint assembly, the flushing joint assembly includes: A pipe assembly (410) including at least a pair of pipes, and the pair of pipes includes a first liquid supply pipeline (231) and a second liquid supply pipeline (232); And A flushing joint (210) provided with at least one groove (421), and the groove (421) is arranged corresponding to the pair of pipes, so that when the pipe assembly (410) and the flushing joint (210) are connected together, the groove (421) can communicate the pair of pipes, so that the first liquid supply pipeline (231) is communicated with the second liquid supply pipeline (232) through the groove (421).
9. The liquid supply system according to claim 8, wherein: The pipe assembly (410) further includes a base (413), and the at least a pair of pipes penetrate through the base (413); The flushing joint assembly further includes a connection structure arranged on the base (413) and the flushing joint (210), so that the base (413) and the flushing joint (210) are detachably connected; The connection structure includes an internal thread arranged in a hole on the base (413) and an external thread arranged on a column (422) on the flushing joint (210).
10. The liquid supply system according to claim 1, wherein, It further includes: A pipe joint, the pipe joint includes: A pipe body (310) defining a pipe channel (320) extending along the pipe axis direction; A protruding circular ring (311), provided on the tube body (310); and A protruding elliptical ring (312), provided on the tube body (310); The protruding circular ring (311) and the protruding elliptical ring (312) are arranged at an interval along the tube axis direction; The tube body (310), the protruding circular ring (311) and the protruding elliptical ring (312) are coaxially arranged; The outer diameter of the protruding circular ring (311) is greater than or equal to the major axis of the protruding elliptical ring (312); Both the outer diameter of the protruding circular ring (311) and the minor axis of the protruding elliptical ring (312) are greater than the outer diameter of the tube body (310).