Anti-seepage assembly and liquid supply system

Abstract

The utility model relates to the technical field of liquid supply protection, in particular to an anti-seepage assembly and a liquid supply system.The anti-seepage assembly comprises a channel piece arranged in a mounting hole, and the channel piece is provided with a fluid channel communicated with the interior of a container; the buoyancy assembly is arranged in the mounting hole and located below the channel part, a sliding cavity is formed in the guide part, the floating part is arranged in the sliding cavity, liquid in the container can enter the sliding cavity to provide buoyancy for the floating part, the plugging part is arranged above the floating part, and the floating part slides in the sliding cavity in a reciprocating mode; the driving part drives the plugging part to move in the direction close to or away from the channel part, and therefore plugging is achieved when the fluid channel is plugged by the plugging part. According to the anti-seepage assembly, when external water reversely permeates into the container and the liquid level in the container continuously rises, the fluid channel is blocked by the blocking piece through the buoyancy effect of liquid on the floating piece, the situation that the liquid overflows from the container is avoided, and the stability of the whole pipeline of the liquid supply system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid supply protection, especially to a seepage prevention assembly and a liquid supply system. BACKGROUND

[0002] The liquid supply system can supply liquid to the pipeline. For example, the disinfection system on the dental chair can supply disinfectant to the pipeline of the dental chair to disinfect the pipeline of the dental chair after use. The liquid supply system is provided with a liquid storage container, and the liquid storage container is provided with a liquid outlet and an exhaust port. A control valve is arranged downstream of the liquid outlet. When the liquid in the liquid storage container is corrosive, the valve body controlling the liquid outlet is prone to corrosion, resulting in valve body failure. In the liquid supply system connected to multiple liquid discharge pipelines, the liquid in other pipelines is prone to backflow into the liquid storage container, causing the liquid level in the liquid storage container to gradually rise or even overflow from the exhaust port, resulting in failure of the liquid supply system. SUMMARY

[0003] Therefore, the present application aims to provide a seepage prevention assembly and a liquid supply system to solve the problem of backflow of liquid into the liquid storage container in the existing liquid supply system, causing the liquid in the liquid storage container to gradually rise or even overflow from the exhaust port, resulting in failure of the liquid supply system.

[0004] The first aspect of the utility model provides a kind of seepage prevention assembly, wherein the seepage prevention assembly includes:

[0005] Mounting piece is arranged on the first aperture of the top of container, and mounting hole is formed in the mounting piece;

[0006] Channel piece is arranged in the mounting hole, and fluid channel that communicates with the inside of the container is formed in the channel piece;

[0007] Buoyancy assembly is arranged in the mounting hole and below the channel piece, and the buoyancy assembly includes guide piece, floating piece and plugging piece;Sliding cavity is formed in the inside of the guide piece, the floating piece is arranged in the sliding cavity, and the outer wall of the guide piece is provided with communication hole that communicates with the sliding cavity, so that the liquid in the container can enter the sliding cavity to provide buoyancy for the floating piece, the floating piece reciprocatingly slides in the sliding cavity to drive the plugging piece to move towards the direction close to or away from the channel piece, so as to realize plugging when the plugging piece blocks the fluid channel.

[0008] Preferably, one end of the plugging piece facing the channel piece is formed with protruding plugging part, and at least part of the plugging part can extend into the fluid channel;One end of the plugging piece facing the floating piece is arranged in the sliding cavity and formed with recessed limiting groove, and at least part of the floating piece is embedded in the limiting groove.

[0009] Preferably, one end of the fluid passage facing the obturator is formed as an obturation end, the obturation end is formed as a tapered hole, the radial dimension of the side of the obturation end close to the obturator is greater than the radial dimension of the side of the obturation end away from the obturator; the part of the obturator extending into the obturation end is in gap cooperation with the fluid passage and is provided with an annular groove on the circumferential side wall;

[0010] The anti-infiltration assembly further comprises:

[0011] A sealing member is arranged in the annular groove, when the obturator extends into the obturation end, the sealing member abuts against the obturation end, so that the sealing member is extruded and deformed by the obturator and the passage member.

[0012] Preferably, the outer diameter dimension of the sealing member is smaller than the large diameter dimension of the tapered hole, and the inner diameter dimension of the sealing member is greater than the small diameter dimension of the tapered hole.

[0013] Preferably, the sliding cavity is formed as a strip-shaped structure extending in the vertical direction, and the communication hole is arranged in the circumferential side wall of the guide member and / or the bottom of the guide member.

[0014] Preferably, the floating member is hollow inside, and a plurality of floating members are arranged in the vertical direction.

[0015] Preferably, one end of the fluid passage away from the obturator is formed as a communication end, and the communication end is arranged outside the mounting hole.

[0016] Preferably, the anti-infiltration assembly further comprises:

[0017] A detection assembly is arranged in the mounting member, the detection assembly comprises a first detection member and a second detection member arranged separately, the first detection member has a first detection part and a first wiring part, the second detection member has a second detection part and a second wiring part, the first detection part and the second detection part are in communication with the mounting hole, the first wiring part and the second wiring part are arranged on the outer wall of the mounting member, when the liquid surface of the liquid entering the mounting hole contacts the first detection part and the second detection part, the first detection member and the second detection member are conductive.

[0018] Preferably, the mounting member comprises:

[0019] A first mounting part connected with the passage member;

[0020] A second mounting part connected with the guide member;

[0021] The detection assembly is clamped between the first mounting part and the second mounting part.

[0022] The second aspect of the utility model provides a liquid supply system, including the anti -infiltration subassembly of any prior art solution.

[0023] Compared with the prior art, the utility model has the advantages of:

[0024] The anti-infiltration assembly of the utility model, the mounting piece is arranged on the first opening of the top of the container, and mounting holes are formed in the mounting piece; the channel piece is arranged in the mounting hole, and a fluid channel is formed in the channel piece to communicate with the interior of the container; the buoyancy assembly is arranged in the mounting hole and below the channel piece, and the buoyancy assembly comprises a guide piece, a floating piece and a blocking piece; a sliding cavity is formed in the interior of the guide piece, the floating piece is arranged in the sliding cavity, and a communication hole is formed in the outer wall of the guide piece to communicate with the sliding cavity, so that the liquid in the container can enter the sliding cavity to provide buoyancy to the floating piece; the blocking piece is arranged above the floating piece, and the floating piece reciprocally slides in the sliding cavity to drive the blocking piece to move towards the channel piece or away from the channel piece, so that the fluid channel is blocked when the blocking piece blocks the fluid channel; in this way, when the external water infiltrates into the container, the liquid level in the container continuously rises, the buoyancy of the liquid on the floating piece is utilized to block the fluid channel, the situation that the liquid overflows from the container is avoided, and the stability of the overall pipeline of the liquid supply system is ensured.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0027] Figure 1 The structure schematic diagram of the anti-infiltration assembly provided for the embodiment of the utility model is installed on the container;

[0028] Figure 2 The structure explosion view of the anti-infiltration assembly provided for the embodiment of the utility model is installed on the container;

[0029] Figure 3 The structure schematic diagram of the guide piece in the anti-infiltration assembly provided for the embodiment of the utility model;

[0030] Figure 4 The sectional view of the anti-infiltration assembly provided for the embodiment of the utility model;

[0031] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0032] Icons: 1-container; 101-first opening; 102-second opening; 10-mounting piece; 11-mounting hole; 110-first mounting portion; 120-second mounting portion; 20-channel piece; 21-fluid channel; 211-blocking end; 212-connecting end; 30-guide piece; 31-sliding cavity; 32-connecting hole; 33-limiting boss; 34-connecting portion; 40-floating piece; 50-blocking piece; 51-blocking portion; 52-limiting groove; 53-annular groove; 60-sealing piece; 71-first detection piece; 711-first detection portion; 712-first wiring portion; 72-second detection piece; 721-second detection portion; 722-second wiring portion. DETAILED DESCRIPTION

[0033] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, except for operations that must occur in a particular order, changes may be made that will be apparent upon understanding the disclosure of this application. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity.

[0034] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0035] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, it may be directly “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on,” “directly connected to,” “directly coupled to,” “directly over,” or “directly covering” another element, there may be no other elements intervening therebetween.

[0036] As used herein, the term "and / or" includes any one and any combination of the associated items.

[0037] Although terms such as "first", "second", and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, elements, components, regions, layers and / or sections referred to as a first element, component, region, layer or section in the examples described herein can also be referred to as a second element, component, region, layer or section without departing from the teachings of the examples.

[0038] For ease of description, spatial relationship terms, such as "on", "upper", "under", and "lower", can be used herein to describe the relationship between one element and another element as shown in the drawings. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as on "upper" or "upper" relative to another element would then be oriented "under" or "lower" relative to the other element. Accordingly, the term "on" encompasses both an "on" and "under" orientation based on the spatial orientation of the device. The device can be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and an appropriate re-interpretation of the spatial relationship terms used herein will be made.

[0039] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" as used herein, are specifically intended to be construed as open-ended terms, i.e., to mean "including, but not limited to", "including, but not limited to", "including, but not limited to" and "including, but not limited to", respectively.

[0040] Variations in the shapes of the elements shown in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the specific shapes of the elements shown in the drawings, but include variations in shapes that would occur as a result of manufacturing processes.

[0041] The features of the examples described herein can be combined in a variety of ways as will be apparent after review of the disclosure. Additionally, although various examples have been described herein, it will be apparent to those of ordinary skill in the art that many modifications, combinations, sub-combinations and variations of examples can be made.

[0042] The anti-seepage assembly according to the first aspect of the utility model comprises a mounting piece 10, a channel piece 20 and a buoyancy assembly.

[0043] Hereinafter, the specific structure of the above components of the anti-seepage assembly according to the embodiment will be described.

[0044] In the embodiment, as shown in Figure 1 and Figure 2 , the container 1 can be in a structure of a jar, a bottle, a box or a barrel, as long as it has the ability to hold liquid. The outer wall of the container 1 is provided with a first opening hole 101 and a second opening hole 102 which are in communication with the inside of the container 1, the first opening hole 101 is arranged at the top of the container 1 for venting or for adding liquid to the inside of the container 1, and the second opening hole 102 is arranged at the bottom of the container 1 for discharging liquid in the container 1. It should be noted that when the first opening hole 101 is only used for venting, a liquid supplementing port can also be added.

[0045] In the embodiment, as shown in Figures 1 to 5 , the mounting piece 10 is arranged on the first opening hole 101, and the mounting piece 10 can be fixed to the first opening hole 101 by thread connection or clamping connection and the like. The mounting piece 10 is provided with a mounting hole 11 which is formed as a through hole penetrating through the mounting piece 10, so that the mounting piece 10 is formed as an annular structure.

[0046] As shown in Figure 4 and Figure 5 , the channel piece 20 is arranged in the mounting hole 11, and the channel piece 20 is provided with a fluid channel 21 which is in communication with the inside of the container 1 and the outside of the container 1; the buoyancy assembly is arranged in the mounting hole 11 and below the channel piece 20, that is, the channel piece 20 and the buoyancy assembly are arranged in the axial direction of the mounting hole 11.

[0047] Specifically, in the embodiment, as shown in Figures 2 to 5As shown, the buoyancy assembly includes a guide member 30, a float member 40 and a blocking member 50; a sliding cavity 31 is formed inside the guide member 30, and the float member 40 is arranged in the sliding cavity 31. A connecting hole 32 connected to the sliding cavity 31 is opened on the outer wall of the guide member 30, so that the liquid in the container 1 can enter the sliding cavity 31 to provide buoyancy for the float member 40, and the blocking member 50 is arranged above the float member 40. The float member 40 slides back and forth in the sliding cavity 31 to drive the blocking member 50 to move toward or away from the channel member 20, so that the blocking member 50 blocks the fluid channel 21. In this way, when external water reversely osmotically enters the container 1 through the second opening 102, causing the liquid level in the container 1 to continue to rise, the blocking member 50 blocks the fluid channel 21 by utilizing the buoyancy of the liquid in the sliding cavity 31 on the float member 40, thereby preventing the liquid in the container 1 from entering the fluid channel 21, thereby preventing the liquid from overflowing from the container 1, and ensuring the stability of the entire pipeline of the liquid supply system.

[0048] Furthermore, in this embodiment, Figure 4 and Figure 5 As shown, a protruding sealing portion 51 is formed on the end of the sealing member 50 facing the channel member 20. The sealing portion 51 may be a columnar structure, and at least a portion of the sealing portion 51 can extend into the fluid channel 21 to enhance the sealing effect of the sealing member 50. Preferably, the end of the sealing portion 51 facing the fluid channel 21 is formed into a conical or truncated cone-shaped block structure to guide the sealing portion 51 to smoothly enter the fluid channel 21.

[0049] like Figure 4 and Figure 5 As shown, the end of the blocking member 50 facing the floating member 40 is disposed within the sliding cavity 31 to limit the movement path of the blocking member 50 and enhance the effectiveness of the blocking member 50 in blocking the fluid passage 21. A recessed limiting groove 52 is formed on the end of the blocking member 50 facing the floating member 40. At least a portion of the floating member 40 is embedded in the limiting groove 52. This prevents the blocking member 50 from tilting when the floating member 40 drives the blocking member 50 to move, preventing the blocking portion 51 from extending into the fluid passage 21.

[0050] In this embodiment, if Figure 4 and Figure 5As shown, one end of the fluid passage 21 facing the blocking member 50 is formed as a blocking end 211, the blocking end 211 is formed as a tapered hole, specifically, the radial dimension of the blocking end 211 near the blocking member 50 is greater than the radial dimension of the blocking end 211 away from the blocking member 50; the part of the blocking member 50 extending into the blocking end 211 is in clearance fit with the fluid passage 21, thereby ensuring that the blocking member 50 and the fluid passage 21 are smoothly separated when the liquid level drops. An annular groove 53 is formed on the circumferential side wall of the part of the blocking member 50 extending into the blocking end 211. The annular groove 53 can be formed on the circumferential side wall of the blocking part 51 as described above.

[0051] Further, in the present embodiment, as shown in Figure 4 and Figure 5 , the anti-seepage assembly further comprises a sealing member 60 arranged in the annular groove 53, the sealing member 60 can be a sealing ring made of rubber material, so that the sealing member 60 has elasticity, when the blocking member 50 extends into the blocking end 211, the sealing member 60 abuts against the blocking end 211, so that the sealing member 60 is extruded by the blocking member 50 and the passage member 20 and deformed, thereby improving the sealing performance during blocking, and ensuring the reliability and effectiveness of blocking the fluid passage 21.

[0052] In a preferred embodiment, as shown in Figure 5 , the outer diameter of the sealing member 60 is smaller than the large diameter of the tapered hole, and the inner diameter of the sealing member 60 is greater than the small diameter of the tapered hole, so as to ensure that the sealing member 60 abuts against the blocking end 211, so as to ensure that the sealing member 60 is in an extruded state. Since the hole wall of the tapered hole is inclined, under the condition of the same buoyancy, the extrusion effect of the inclined hole wall on the sealing member 60 is better than that of the normal pressure.

[0053] In the present embodiment, the communication member can be in communication with the gas supply pipeline, so that when the container 1 is drained, gas can be introduced into the interior of the container 1 through the fluid passage 21, so as to apply a driving force to the liquid to flow out of the second opening 102, as shown in Figure 5 , one end of the fluid passage 21 away from the blocking member 50 is formed as a communication end 212, the communication end 212 is arranged outside the mounting hole 11, so as to facilitate the communication between the communication member and the gas supply pipeline. It should be noted that the fluid passage 21 can also serve as a passage for discharging gas in the container 1.

[0054] In the present embodiment, as shown in Figure 3 and Figure 4 , the guide member 30 is formed as a long strip-shaped tubular structure, and the sliding cavity 31 is formed as a strip-shaped structure extending in the vertical direction, so that the floating member 40 can only slide in the vertical direction, ensuring that the floating member 40 does not separate from the blocking member 50, and improving the stability of the floating member 40 driving the blocking member 50 towards the blocking end 211.

[0055] In the present embodiment, as shown in Figure 3 and Figure 4 The communication hole 32 is arranged in the circumferential side wall of the guide piece 30 and / or the bottom of the guide piece 30, and the communication hole 32 arranged in the circumferential side wall of the guide piece 30 can be formed as a strip-shaped hole extending in the vertical direction.

[0056] In addition, as shown in Figure 3 The top of the guide piece 30 is formed as a connecting portion 34 connected with the mounting hole 11, and the outer wall of the connecting portion 34 can be provided with threads, so that the guide piece 30 is threadedly connected with the mounting piece 10. The circumferential side wall of the guide piece 30 is further formed with a limiting boss 33 extending outward, which abuts against the side of the mounting piece 10 facing the interior of the container 1 when the guide piece 30 is connected with the mounting piece 10, so that the position of the guide piece 30 in the interior of the container 1 is fixed.

[0057] In the present embodiment, as shown in Figure 4 and Figure 5 The interior of the floating piece 40 is hollow, which helps it to float in the liquid, and the floating piece 40 can be in the shape of a sphere, a cylinder, etc. In a preferred embodiment, a plurality of floating pieces 40 are provided, which are arranged in the vertical direction, and the size of the buoyancy force is related to the total volume of all the floating pieces 40 immersed in the liquid, so that the force of the sealing piece 50 sealing the fluid passage 21 can be adjusted by adjusting the number of floating pieces 40.

[0058] In the present embodiment, as shown in Figure 4 and Figure 5 The anti-seepage assembly further comprises a detection assembly provided on the mounting piece 10, specifically, the detection assembly comprises a first detection piece 71 and a second detection piece 72 arranged separately, i.e. the first detection piece 71 and the second detection piece 72 are not communicated in the normal state, the first detection piece 71 has a first detection portion 711 and a first wiring portion 712, and the second detection piece 72 has a second detection portion 721 and a second wiring portion 722, the first detection portion 711 and the second detection portion 721 can be probe heads, and the first detection portion 711 and the second detection portion 721 are communicated with the mounting hole 11 and can be arranged on the hole wall of the mounting hole 11, and the first wiring portion 712 and the second wiring portion 722 are arranged on the outer wall of the mounting piece 10, so as to be connected to an electric control system, such as a circuit board, when the liquid level rises to the point that the liquid in the mounting hole 11 contacts the first detection portion 711 and the second detection portion 721 at the same time, the first detection piece 71 and the second detection piece 72 are conducted, so as to form a voltage signal, which can be transmitted to an alarm module to remind the occurrence of liquid seepage.

[0059] Further, in the present embodiment, as shown in Figure 5As shown, the mounting piece 10 comprises a first mounting part 110 and a second mounting part 120, which can be in an integrated structure or in a split structure, the first mounting part 110 is connected with the channel piece 20, for example, the first mounting part 110 is threadedly connected with the channel piece 20; the second mounting part 120 is connected with the guide piece 30, for example, the second mounting part 120 is threadedly connected with the guide piece 30; the detection assembly is clamped between the first mounting part 110 and the second mounting part 120, so as to facilitate the installation and fixation of the detection assembly. It should be noted that when the first mounting part 110 and the second mounting part 120 are in an integrated structure, an opening can be arranged between the first mounting part 110 and the second mounting part 120 for the detection assembly to extend into.

[0060] In addition, in the embodiment, as shown in Figure 4 and Figure 5 As shown, a sealing ring can be arranged between the channel piece 20 and the mounting piece 10 and between the mounting piece 10 and the first opening 101, so as to ensure the assembly sealing and improve the effect of preventing liquid seepage.

[0061] According to the anti-seepage assembly, the mounting piece is arranged on the first opening at the top of the container, the mounting hole is arranged on the mounting piece, the channel piece is arranged in the mounting hole, the fluid channel communicating with the inside of the container is arranged on the channel piece, the buoyancy assembly is arranged in the mounting hole and below the channel piece, the buoyancy assembly comprises a guide piece, a floating piece and a blocking piece, the inside of the guide piece is formed with a sliding cavity, the floating piece is arranged in the sliding cavity, the outer wall of the guide piece is arranged with a communication hole communicating with the sliding cavity, so that the liquid in the container can enter the sliding cavity to provide the floating force for the floating piece, the blocking piece is arranged above the floating piece, the floating piece reciprocally slides in the sliding cavity to drive the blocking piece to move towards the direction close to or away from the channel piece, so as to realize the blocking when the blocking piece blocks the fluid channel, so when the external water seeps into the container to cause the liquid level in the container to continuously rise, the floating force of the liquid on the floating piece is utilized to realize the blocking of the fluid channel by the blocking piece, so as to avoid the overflow of the liquid from the container.

[0062] According to the liquid supply system, the liquid supply system provided with the anti-seepage assembly can avoid the overflow of the liquid from the container, and ensure the stability of the whole pipeline of the liquid supply system.

[0063] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any skilled person in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A barrier assembly, characterized by The anti-infiltration assembly comprises: a mounting member arranged on a first opening in the top of the container, the mounting member being provided with a mounting hole; a channel member arranged in the mounting hole, the channel member being provided with a fluid channel communicating with the interior of the container; a buoyancy assembly arranged in the mounting hole and below the channel member, the buoyancy assembly comprising a guide member, a floating member and a blocking member; the interior of the guide member is formed with a sliding cavity, the floating member is arranged in the sliding cavity, the outer wall of the guide member is provided with a communication hole communicating with the sliding cavity, so that the liquid in the container can enter the sliding cavity to provide buoyancy for the floating member, the blocking member is arranged above the floating member, and the floating member reciprocally slides in the sliding cavity to drive the blocking member to move towards or away from the channel member, thereby achieving blocking when the blocking member blocks the fluid channel.

2. The barrier assembly of claim 1, wherein, One end of the blocking member facing the channel member is formed with a protruding blocking part, at least part of the blocking part can extend into the fluid channel; one end of the blocking member facing the floating member is arranged in the sliding cavity and is formed with a recessed limiting groove, and at least part of the floating member is embedded in the limiting groove.

3. The barrier assembly of claim 1, wherein, One end of the fluid channel facing the blocking member is formed as a blocking end, the blocking end is formed as a tapered hole, the radial dimension of one side of the blocking end close to the blocking member is greater than the radial dimension of the other side of the blocking end away from the blocking member; the part of the blocking member extending into the blocking end is in clearance fit with the fluid channel and is provided with a ring groove on the circumferential side wall; The anti-infiltration assembly further comprises: a sealing member arranged in the ring groove, when the blocking member extends into the blocking end, the sealing member abuts against the blocking end, so that the sealing member is extruded and deformed by the blocking member and the channel member.

4. The barrier assembly of claim 3, wherein, The outer diameter of the sealing member is smaller than the large diameter of the tapered hole, and the inner diameter of the sealing member is greater than the small diameter of the tapered hole.

5. The barrier assembly of claim 1, wherein, The sliding cavity is formed as a strip structure extending in the vertical direction, and the communication hole is arranged in the circumferential side wall of the guide member and / or the bottom of the guide member.

6. The barrier assembly of claim 1, wherein, The interior of the floating member is hollow, and a plurality of floating members are arranged in the vertical direction.

7. The barrier assembly of claim 1, wherein, One end of the fluid channel away from the blocking member is formed as a communication end, and the communication end is arranged outside the mounting hole.

8. The barrier assembly of claim 1, wherein, The anti-infiltration assembly further comprises: a detection assembly arranged in the mounting member, the detection assembly comprising a first detection member and a second detection member arranged separately, the first detection member having a first detection part and a first wiring part, the second detection member having a second detection part and a second wiring part, the first detection part and the second detection part communicating with the mounting hole, and the first wiring part and the second wiring part being arranged on the outer wall of the mounting member; when the liquid surface of the liquid entering the mounting hole contacts the first detection part and the second detection part, the first detection member and the second detection member are conductive.

9. A barrier assembly according to claim 8, characterised in that The mounting member comprises: a first mounting part connected with the channel member; a second mounting part connected with the guide member; The detection assembly is clamped between the first mounting portion and the second mounting portion.

10. A liquid supply system characterized by comprising: The barrier assembly comprises any one of claims 1 to 9.

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