Pipe clamping mechanism and liquid supply system

Abstract

The embodiment of the utility model provides a pipe clamping mechanism and a liquid supply system. The pipe clamping mechanism comprises a first clamping piece, a plurality of second clamping pieces and an adsorption assembly. Wherein each second clamping piece is connected to the first clamping piece through an elastic piece, the second clamping pieces are arranged at intervals, any liquid supply pipe is correspondingly arranged between one second clamping piece and the first clamping piece in a penetrating mode, and the second clamping pieces and the first clamping piece can clamp the liquid supply pipe under the action of the elastic pieces. The adsorption assembly is located on the side, away from the first clamping piece, of the second clamping piece and used for providing adsorption force away from the first clamping piece for the second clamping piece, so that the second clamping piece loosens the liquid supply pipe. According to the technical scheme, the connecting structure of the pipe clamping mechanism is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid supply, especially relates to a pinch valve mechanism and liquid supply system. BACKGROUND

[0002] At present, the pinch valve is usually provided with a sleeve, the fixed pressing block and the movable pressing block are fixed in the sleeve and jointly clamp the liquid pipe, the side of the movable pressing block away from the fixed pressing block is connected with the movable armature, the outer periphery of the movable pressing block and the movable armature is sleeved with a spring, the two ends of the movable armature abut against the movable pressing block and the support of the connecting sleeve, the movable pressing block moves away from the fixed pressing block under the magnetic field generated by the coil and is attracted to the fixed armature, drives the movable pressing block to compress the spring and move away from the fixed pressing block, so that the liquid pipe is loosened, the liquid storage container and the liquid tank are communicated, however, the pinch valve has many parts, the connecting structure of the pinch valve is relatively complex, and it is very inconvenient when the spring needs to be replaced. SUMMARY

[0003] The utility model embodiment provides a kind of pinch valve mechanism and liquid supply system, to simplify the connecting structure of pinch valve mechanism.

[0004] In the first aspect, the utility model provides a kind of pinch valve mechanism, applied to liquid supply system, the liquid supply system includes multiple liquid supply pipes, and the pinch valve mechanism includes:

[0005] First clamping part;

[0006] Multiple second clamping parts, the second clamping part is connected to the first clamping part by elastic member, multiple second clamping parts are arranged at intervals, any liquid supply pipe is correspondingly arranged between one second clamping part and the first clamping part, and the second clamping part can clamp the liquid supply pipe with the first clamping part under the action of the elastic member;And

[0007] Adsorption assembly, the adsorption assembly is located at the side of the second clamping part away from the first clamping part, and the adsorption assembly is used to provide the adsorption force of the second clamping part away from the first clamping part, so that the second clamping part loosens the liquid supply pipe.

[0008] Optionally, the adsorption assembly includes an electromagnet;

[0009] The electromagnet is at least one, the pinch valve mechanism further includes driving assembly, the driving assembly is drivingly connected to the electromagnet, and the electromagnet can be moved to correspond to different second clamping parts under the driving of the driving assembly;Or, the electromagnet is multiple, multiple electromagnets are arranged at intervals, and multiple electromagnets and multiple second clamping parts are arranged one by one.

[0010] Optionally, the first clamping member extends along a first direction, the plurality of second clamping members are arranged along the first direction at intervals, and the liquid supply pipe is arranged between the second clamping members and the first clamping member along a second direction different from the first direction.

[0011] Optionally, the electromagnet is capable of sliding along the first direction under the driving of the driving assembly, so as to correspond to different second clamping members; the pipe clamping mechanism further comprises a conductive member extending along the first direction, and the electromagnet is in contact with the conductive member for conduction.

[0012] Optionally, the conductive member comprises a plurality of conductive portions arranged at intervals along the first direction, and when the electromagnet is in contact with any conductive portion for conduction, the electromagnet corresponds to only one second clamping member.

[0013] Optionally, any second clamping member and the first clamping member are connected by at least two elastic members arranged at intervals, and the liquid supply pipe is located between the two elastic members.

[0014] Optionally, the first clamping member is provided with a first connecting hole, the first connecting hole is provided with a first connecting portion, the second clamping member is provided with a second connecting hole corresponding to the first connecting hole, the second connecting hole is provided with a second connecting portion, and opposite ends of the elastic member are each provided with a hook portion, one end of the elastic member is inserted into the first connecting hole and hooked on the first connecting portion, and the other end of the elastic member is inserted into the second connecting hole and hooked on the second connecting portion.

[0015] Optionally, the pipe clamping mechanism further comprises a guide member connected to the first clamping member, and the second clamping member is provided with a guide hole, and the guide member is movably arranged in the guide hole.

[0016] Optionally, the electromagnet is connected to a predetermined component on a side away from the second clamping member, the first clamping member is connected to the predetermined component through a connecting member, the connecting member is provided with a avoiding hole, and the liquid supply pipe is arranged in the avoiding hole.

[0017] In a second aspect, the utility model embodiment provides a liquid supply system, which comprises a plurality of liquid storage containers, a plurality of liquid supply pipes, a groove body and the pipe clamping mechanism as described in the first aspect, two ends of any liquid supply pipe are respectively connected to one liquid storage container and the same groove body, and one liquid supply pipe is arranged between any second clamping member and the first clamping member of the pipe clamping mechanism.

[0018] When the electromagnet is connected to electricity, the electromagnet provides an adsorption force away from the first clamping piece to the corresponding second clamping piece, thereby releasing the corresponding liquid supply pipe.

[0019] The pipe clamping mechanism and the liquid supply system provided by the embodiments of the present application have the following advantages: each second clamping piece is connected to the first clamping piece through the elastic member, and the second clamping piece can stably clamp the corresponding liquid supply pipe together with the first clamping piece under the elastic force provided by the elastic member, and the liquid storage container connected with the liquid supply pipe is not connected with the groove body. The side, away from the first clamping piece, of the second clamping piece is provided with the adsorption assembly, the adsorption assembly can provide an adsorption force away from the first clamping piece to each second clamping piece, so that the second clamping piece releases the corresponding liquid supply pipe, and the liquid storage container connected with the liquid supply pipe and the groove body are connected through the liquid supply pipe to realize liquid supply. The second clamping piece is connected to the first clamping piece through the elastic member, and it is not necessary to additionally set components and extrude the elastic member by the second clamping piece, thereby reducing the setting of components and simplifying the connection structure of the pipe clamping mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The structure diagram of the pipe clamping mechanism provided by an embodiment of the present application is shown in the figure.

[0022] Figure 2 The front view of the pipe clamping mechanism provided by an embodiment of the present application is shown in the figure.

[0023] Figure 3 The structure diagram of the pipe clamping mechanism provided by another embodiment of the present application is shown in the figure.

[0024] Figure 4 The front view of the pipe clamping mechanism provided by another embodiment of the present application is shown in the figure.

[0025] Figure 5 The structure diagram of the first clamping piece, the second clamping piece, the elastic member and the guide member provided by another embodiment of the present application is shown in the figure.

[0026] Main figure mark explanation:

[0027] 10, first clamping member; 11, first connecting hole; 12, first clamping part; 20, second clamping member; 21, second connecting hole; 22, guide hole; 23, second clamping part; 30, elastic member; 31, hook part; 40, electromagnet; 41, electricity connection member; 411, extension part; 412, electricity connection part; 50, driving assembly; 51, rotary motor; 52, screw rod; 53, nut; 60, electricity conducting member; 61, electricity conducting part; 70, guide member; 80, connecting member; 81, avoiding hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] Please refer to Figure 1 and Figure 2 The pipe clamping mechanism is applied to a liquid supply system, and the liquid supply system comprises a plurality of liquid supply pipes 200. The pipe clamping mechanism comprises a first clamping member 10, a plurality of second clamping members 20 and a suction assembly. Each second clamping member 20 is connected to the first clamping member 10 through an elastic member 30, and the plurality of second clamping members 20 are arranged at intervals. Any liquid supply pipe 200 is arranged to pass through between a second clamping member 20 and the first clamping member 10. The second clamping member 20 can clamp the liquid supply pipe 200 together with the first clamping member 10 under the action of the elastic member 30. The suction assembly is arranged on the side of the second clamping member 20 away from the first clamping member 10. The suction assembly is used to provide a suction force away from the first clamping member 10 to the second clamping member 20, so that the second clamping member 20 releases the liquid supply pipe 200.

[0030] The pipe clamping mechanism of the present embodiment is characterized in that each second clamping member 20 is connected to the first clamping member 10 through an elastic member 30. The second clamping member 20 can clamp the corresponding liquid supply pipe 200 together with the first clamping member 10 under the action of the elastic force provided by the elastic member 30, and the liquid supply pipe 200 is not connected between the liquid storage container and the groove. The side of the second clamping member 20 away from the first clamping member 10 is provided with a suction assembly. The suction assembly can provide a suction force away from the first clamping member 10 to the second clamping member 20, so that the second clamping member 20 releases the corresponding liquid supply pipe 200. The liquid storage container and the groove connected by the liquid supply pipe 200 are connected, so as to realize liquid supply. The second clamping member 20 is connected to the first clamping member 10 through the elastic member 30, and it is not necessary to additionally arrange components and to press the elastic member 30 by the second clamping member 20. The arrangement of components is reduced, and the connection structure of the pipe clamping mechanism is simplified.

[0031] Specifically, the liquid supply system comprises a plurality of liquid storage containers, a plurality of liquid supply pipes 200, and a tank body. Opposite ends of any liquid supply pipe 200 are connected to one liquid storage container and the same tank body. The pipe clamping mechanism can clamp a plurality of liquid supply pipes 200. A plurality of second clamping members 20 are connected to a first clamping member 10 through elastic members 30. The plurality of second clamping members 20 are arranged compactly. The plurality of liquid supply pipes 200 clamped by the pipe clamping mechanism are more concentrated and regular in arrangement. The plurality of liquid supply pipes 200 are connected to the same tank body, so as to supply liquid to the same tank body.

[0032] It can be understood that the second clamping member 20 has magnetic properties and can be attracted by the electromagnet 40 when the electromagnet 40 is powered on. For example, the material of the second clamping member 20 can include iron, steel, or alloy.

[0033] For example, as shown in Figure 2 , the plurality of second clamping members 20 are connected to the same first clamping member 10 through the elastic members 30, and the plurality of second clamping members 20 are arranged at intervals. This arrangement avoids interference between the plurality of second clamping members 20.

[0034] For example, the elastic member 30 can include a spring, a spring piece, or the like.

[0035] For example, the spring is in a stretched state. Under the action of the elastic restoring force, the elastic member 30 pulls the second clamping member 20 towards the first clamping member 10, so that the second clamping member 20 and the first clamping member 10 clamp the liquid supply pipe 200.

[0036] In some embodiments, as shown in Figure 1 and Figure 3 , the electromagnet 40 is connected to a predetermined component on the side away from the second clamping member 20. The first clamping member 10 is connected to the predetermined component through a connecting member 80. The connecting member 80 is provided with a relief hole 81, and the liquid supply pipe 200 is arranged in the relief hole 81. It can be understood that the electromagnet 40 and the first clamping member 10 can be connected to the predetermined component respectively to realize the installation of the pipe clamping mechanism and improve the maintainability of the pipe clamping mechanism.

[0037] For example, the connecting member 80 extends to the side where the electromagnet 40 is located, so that the first clamping member 10 and the electromagnet 40 are connected to the same predetermined component.

[0038] For example, the predetermined component can be a housing of the liquid supply system. Specifically, the predetermined component can be a bottom plate of the housing. The pipe clamping mechanism is located above the direction of gravity of the bottom plate. The first clamping member 10 in the pipe clamping mechanism is located directly above the second clamping member 20 in the direction of gravity. The second clamping member 20 is located directly above the electromagnet 40 in the direction of gravity.

[0039] In some embodiments, as shown in Figures 1 to 4As shown, the first clamping member 10 extends along a first direction, the plurality of second clamping members 20 are arranged along the first direction at intervals, and the liquid supply pipe 200 is arranged along a second direction between the second clamping members 20 and the first clamping member 10, the second direction being different from the first direction. In this way, the plurality of second clamping members 20 are regularly distributed, and the plurality of liquid supply pipes 200 are arranged between the first clamping member 10 and the corresponding second clamping members 20.

[0040] For example, the first direction can be the Y direction as shown in Figure 1 , and the second direction can be the X direction as shown in Figure 1 .

[0041] For example, the second direction is perpendicular to the first direction.

[0042] For example, the first clamping member 10 is located above the second clamping member 20 along the direction of gravity as shown in the Z direction in Figure 1 . The first direction and the second direction are perpendicular to the direction of gravity.

[0043] In some optional embodiments, as shown in Figure 1 and Figure 2 , the adsorption assembly includes a plurality of electromagnets 40, the plurality of electromagnets 40 are arranged at intervals, and the plurality of electromagnets 40 and the plurality of second clamping members 20 are arranged one-to-one. By controlling the on-off of the plurality of electromagnets 40, the control of the adsorption of the electromagnets 40 on the corresponding second clamping members 20 is realized. The plurality of electromagnets 40 are arranged at intervals to avoid mutual interference between the plurality of electromagnets 40.

[0044] For example, as shown in Figure 1 and Figure 2 , the electromagnet 40 is a long strip extending along the X direction, so that the plurality of electromagnets 40 are arranged at intervals along the Y direction, while ensuring the adsorption force of the electromagnet 40 on the corresponding second clamping member 20, and ensuring that the second clamping member 20 can overcome the elastic force of the elastic member 30 to release the liquid supply pipe 200.

[0045] For example, along the direction from the first clamping member 10 to the second clamping member 20, for example, along the Z direction in Figure 2 , the projection of the second clamping member 20 is located on the electromagnet 40, so that the second clamping member 20 and the electromagnet 40 are arranged correspondingly, and the electromagnet 40 can generate an adsorption force on the second clamping member 20 when connected to electricity, so that the second clamping member 20 moves away from the first clamping member 10.

[0046] In another optional embodiment, as shown in Figure 3 and Figure 4As shown, the adsorption assembly comprises an electromagnet 40, the electromagnet 40 is at least one, the pipe clamping mechanism further comprises a driving assembly 50, the driving assembly 50 is drivingly connected to the electromagnet 40, and the electromagnet 40 can be driven by the driving assembly 50 to correspond to different second clamping pieces 20. By movably connecting the electromagnet 40 to the first clamping piece 10, one electromagnet 40 can control the adsorption of multiple second clamping pieces 20, which facilitates the arrangement of the electromagnet 40 and the compact arrangement of multiple second clamping pieces 20.

[0047] As shown in some embodiments, Figure 3 and Figure 4 As shown, the electromagnet 40 can slide in the first direction under the driving of the driving assembly 50 to correspond to different second clamping pieces 20. The pipe clamping mechanism further comprises a conductive piece 60 extending in the first direction, and the electromagnet 40 is in contact with the conductive piece 60 for conduction. As can be understood, the conductive piece 60 can be electrically connected to the control mainboard, and when the control mainboard supplies power to the conductive piece 60, the electromagnet 40 is in contact with the conductive piece 60 for conduction, so that the electromagnet 40 can provide adsorption force to the corresponding second clamping piece 20. The contact conduction mode can simplify the wiring of the electromagnet 40, thereby facilitating the sliding of the electromagnet 40 under the driving of the driving assembly 50.

[0048] As shown in some embodiments, Figure 4 As shown, the driving mechanism comprises a rotary motor 51 and a screw rod 52 nut 53 transmission assembly, the rotary motor 51 is drivingly connected to the screw rod 52, the nut 53 is sleeved on the outer periphery of the screw rod 52, and the electromagnet 40 is connected to the nut 53. By driving the screw rod 52 to rotate through the rotary motor 51, the nut 53 drives the electromagnet 40 to slide in the first direction relative to the screw rod 52, and by controlling the rotation direction of the rotary motor 51, the electromagnet 40 slides in the first direction in the forward or reverse direction, so that the electromagnet 40 can correspond to different second clamping pieces 20.

[0049] As shown in some embodiments, Figure 3 As shown, the electromagnet 40 has an electrical connection piece 41, the electrical connection piece 41 comprises an extension part 411 and an electrical connection part 412, the electrical connection part 412 is bent relative to the extension part 411 and is in contact with the conductive piece 60 for conduction.

[0050] Specifically, the conductive piece 60 comprises a plurality of conductive parts 61, the plurality of conductive parts 61 are arranged at intervals in the first direction, and when the electromagnet 40 is in contact with any conductive part 61 for conduction, the electromagnet 40 corresponds to only one second clamping piece 20, preventing the electromagnet 40 from simultaneously providing adsorption force to multiple second clamping pieces 20 and causing liquid supply errors.

[0051] As shown in some embodiments, Figure 5As shown, any one second clamping piece 20 is connected with the first clamping piece 10 through at least two elastic pieces 30, and the two elastic pieces 30 are arranged at intervals, and the liquid supply pipe 200 is located between the two elastic pieces 30. It can be understood that the second clamping piece 20 is connected with the first clamping piece 10 through at least two elastic pieces 30, which can disperse the stress of the elastic piece 30, reduce the fatigue risk of the elastic piece 30, and the two elastic pieces 30 are located on both sides of the liquid supply pipe 200 respectively, so that the stress of the second clamping piece 20 is more balanced, and the second clamping piece 20 can stably clamp the liquid supply pipe 200 with the first clamping piece 10.

[0052] As shown in the drawings, Figure 5 As shown, any one second clamping piece 20 can be connected with the first clamping piece 10 through four elastic pieces 30, and the four elastic pieces 30 are symmetrically arranged and uniformly distributed on both sides of the liquid supply pipe 200, so as to ensure that the second clamping piece 20 can clamp the liquid supply pipe 200 without external force.

[0053] As shown in the drawings, Figure 5 As shown, the first clamping piece 10 is provided with a first connecting hole 11, and the first connecting hole 11 is provided with a first connecting part (not shown), the second clamping piece 20 is provided with a second connecting hole 21 corresponding to the first connecting hole 11, and the second connecting hole 21 is provided with a second connecting part (not shown), and the opposite ends of the elastic piece 30 are provided with a hook part 31, one end of the elastic piece 30 is inserted into the first connecting hole 11 and hooked on the first connecting part, and the other end of the elastic piece 30 is inserted into the second connecting hole 21 and hooked on the second connecting part.

[0054] As shown, the first connecting hole 11 penetrates through the opposite sides of the first clamping piece 10, so that when the hook part 31 at one end of the elastic piece 30 is inserted into the first connecting hole 11 and hooked on the first connecting part, the elastic piece 30 can be more conveniently observed.

[0055] As shown, the first clamping piece 10 is provided with a first pin hole (not shown) communicating with the first connecting hole 11, and the axis of the first pin hole is relatively inclined to the axis of the first connecting hole 11, so that the first pin is arranged in the first connecting hole 11 from the first pin hole, and the hook part 31 at one end of the elastic piece 30 is hooked on the first pin.

[0056] As shown, the axis of the first pin hole is perpendicular to the axis of the first connecting hole 11. For example, the axis of the first connecting hole 11 is parallel to the direction of gravity, and the axis of the first pin hole is parallel to the horizontal direction.

[0057] As shown, the second connecting hole 21 penetrates through the opposite sides of the second clamping piece 20.

[0058] Exemplarily, the second clamping member 20 is provided with a second pin hole (not shown) communicating with the second connecting hole 21, an axis of the second pin hole is oblique to an axis of the second connecting hole 21, so that the second pin is arranged in the second connecting hole 21 from the second pin hole, and the hook portion 31 of the other end of the elastic member 30 is hooked on the second pin.

[0059] Exemplarily, the axis of the second pin hole is perpendicular to the axis of the second connecting hole 21. For example, the axis of the second connecting hole 21 is parallel to the direction of gravity, and the axis of the second pin hole is parallel to the horizontal direction.

[0060] In some embodiments, as shown in Figure 5 The pipe clamping mechanism further comprises a guide member 70, the guide member 70 is connected to the first clamping member 10, and the second clamping member 20 is provided with a guide hole 22, and the guide member 70 is movably arranged in the guide hole 22. By movably arranging the guide member 70 in the guide hole 22 of the second clamping member 20, the direction of movement of the second clamping member 20 relative to the first clamping member 10 is defined, so that the second clamping member 20 stably clamps the liquid supply pipe 200 under the action of the elastic member 30 and the first clamping member 10, while avoiding affecting the adjacent second clamping member 20 when the second clamping member 20 moves relative to the first clamping member 10, thereby ensuring the stability of the clamping mechanism as a whole.

[0061] Exemplarily, the guide member 70 extends in the direction from the second clamping member 20 to the first clamping member 10. For example, the second clamping member 20 is directly below the first clamping member 10 in the direction of gravity, and the guide member 70 extends in the direction of gravity.

[0062] Exemplarily, as shown in Figure 5 The guide member 70 is connected to the first clamping member 10, and the side of the second clamping member 20 facing the first clamping member 10 is provided with a guide hole 22, and the guide member 70 is arranged in the corresponding guide hole 22.

[0063] Exemplarily, as shown in Figures 4 to 5 The first clamping member 10 has a plurality of first clamping portions 12 arranged at intervals, and the second clamping member 20 has a second clamping portion 23 arranged opposite to the second clamping portion 23, the outer diameter of the first clamping portion 12 gradually decreases in the direction close to the second clamping member 20, and the outer diameter of the second clamping portion 23 gradually decreases in the direction close to the first clamping member 10, so that the clamping force of the first clamping portion 12 and the second clamping portion 23 acting on the liquid supply pipe 200 is more concentrated, and the first clamping member 10 and the second clamping member 20 can stably clamp the liquid supply pipe 200.

[0064] The utility model embodiment further provides a kind of liquid supply system, and liquid supply system includes multiple liquid storage containers, multiple liquid supply pipes 200, tank and the pinch valve mechanism as before, the two ends of any liquid supply pipe 200 are respectively communicated with one liquid storage container and same tank, one liquid supply pipe 200 is arranged between any second clamping piece 20 and first clamping piece 10 of pinch valve mechanism.Electromagnet 40 can provide the adsorption force of corresponding second clamping piece 20 away from first clamping piece 10 when electromagnet 40 is connected, to release corresponding liquid supply pipe 200.It can be understood, with the pinch valve mechanism described above, liquid supply system also has the entire technical effect of pinch valve mechanism, i.e., can reduce the setting of spare part, simplify the connecting structure of pinch valve mechanism.And pinch valve mechanism can clamp multiple liquid supply pipes 200, multiple second clamping pieces 20 are more compact, and multiple liquid supply pipes 200 clamped by pinch valve mechanism are more concentrated and regular, and multiple liquid supply pipes 200 are connected with same tank, to supply liquid to same tank.

[0065] The above is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements shall be encompassed within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A pinch mechanism, comprising: The application is applied to a liquid supply system, the liquid supply system comprises a plurality of liquid supply pipes, the pinch mechanism comprises: a first clamping member; a plurality of second clamping members, the second clamping members are connected to the first clamping member through elastic members, the second clamping members are arranged at intervals, any of the liquid supply pipes is arranged through one of the second clamping members and the first clamping member, the second clamping members can clamp the liquid supply pipes with the first clamping member under the action of the elastic members; and an adsorption assembly, the adsorption assembly is arranged on the side of the second clamping member away from the first clamping member, the adsorption assembly is used for providing the second clamping member with an adsorption force away from the first clamping member, so that the second clamping member releases the liquid supply pipe.

2. The pinch mechanism of claim 1, wherein, The adsorption assembly comprises an electromagnet; The electromagnet is at least one, the pinch mechanism further comprises a driving assembly, the driving assembly is drivingly connected to the electromagnet, the electromagnet can be moved to correspond to different second clamping members under the driving of the driving assembly; or, the electromagnet is a plurality of electromagnets, the electromagnets are arranged at intervals, and the electromagnets and the second clamping members are arranged one by one.

3. The pinch mechanism of claim 2, wherein, The first clamping member extends along a first direction, the second clamping members are arranged at intervals along the first direction, and the liquid supply pipes are arranged through the second clamping members and the first clamping member along a second direction different from the first direction.

4. The pinch mechanism of claim 3, wherein, The electromagnet can slide along the first direction under the driving of the driving assembly, so that the electromagnet corresponds to different second clamping members; the pinch mechanism further comprises a conductive member, the conductive member extends along the first direction, and the electromagnet is in contact with the conductive member.

5. The pinch mechanism of claim 4, wherein, The conductive member comprises a plurality of conductive parts arranged at intervals along the first direction, when the electromagnet is in contact with any of the conductive parts, the electromagnet corresponds to only one of the second clamping members.

6. The pinch mechanism of any one of claims 1-5, wherein, Any of the second clamping members and the first clamping member is connected through at least two elastic members arranged at intervals, and the liquid supply pipe is arranged between the two elastic members.

7. The pinch mechanism of any one of claims 1-5, wherein, The first clamping member is provided with a first connecting hole, the first connecting hole is provided with a first connecting part, the second clamping member is provided with a second connecting hole corresponding to the first connecting hole, the second connecting hole is provided with a second connecting part, and the opposite ends of the elastic member are provided with hook parts, one end of the elastic member is inserted into the first connecting hole and hooked on the first connecting part, and the other end of the elastic member is inserted into the second connecting hole and hooked on the second connecting part.

8. The pinch mechanism of any one of claims 1-5, wherein, The pinch mechanism further comprises a guide member connected to the first clamping member, and the second clamping member is provided with a guide hole, and the guide member is movably arranged through the guide hole.

9. The pinch mechanism of any one of claims 2-5, wherein, The side of the electromagnet away from the second clamping member is connected to a predetermined component; the first clamping member is connected to the predetermined component through a connecting member, the connecting member is provided with a avoiding hole, and the liquid supply pipe is arranged through the avoiding hole.

10. A liquid supply system characterized by comprising: The application relates to a liquid supply device comprising a plurality of liquid storage containers, a plurality of liquid supply pipes, a tank and a pipe clamping mechanism as claimed in any one of claims 1-9, two ends of any one of the liquid supply pipes being respectively connected to one of the liquid storage containers and the same tank, one of the liquid supply pipes being arranged between any one of the second clamping members and the first clamping member of the pipe clamping mechanism. When the electromagnet is connected to electricity, the electromagnet provides the corresponding second clamping member with an attractive force away from the first clamping member, thereby loosening the corresponding liquid supply pipe.

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