Distributing valve

Abstract

The utility model discloses a material distributing valve. The distributing valve comprises a valve body and a switching mechanism, the valve body is provided with a feeding channel and two discharging channels, the two discharging channels communicate with the feeding channel and are symmetrically arranged in the feeding direction of the feeding channel, and each discharging channel is provided with a piston assembly. The piston assembly is arranged at an inlet of the discharging channel so as to open or close the discharging channel. The switching mechanism comprises a rotating body, and the rotating body is installed at an outlet of the feeding channel through a rotating shaft arranged in the direction orthogonal to the feeding direction of the feeding channel. Wherein the rotary body is provided with a cam part, and in the reciprocating rotation process of the rotary body, the cam part at least abuts against the piston assembly in one discharging channel, so that at least one discharging channel is closed. The utility model has the advantages of compact structure and strong practicability.

Description

Technical Field

[0001] The utility model relates to a material distribution valve. Background Art

[0002] In endoscope cleaning equipment, because water washing, enzyme washing, alcohol washing and other operations are required, a pipeline system is usually required to realize the cleaning operations at different stages; the pipeline system in the prior art usually uses multiple valves to coordinate the on-off control of the pipeline, for example, an endoscope cleaning device disclosed in Chinese patent document 202222836299.7 has valves on its cleaning liquid filling pipe and sewage pipe. However, this layout method has more complicated pipelines.

[0003] In other prior arts, a three-way valve is used in the pipeline system to achieve connectivity between different pipelines. For example, Chinese patent document 201822193737.6 discloses a fully immersion endoscope cleaning machine, in which a three-way valve is provided at the outlet of the drain pipe. However, the three-way valve structure in the prior art can only achieve channel switching but does not have a stop function, and more valves are also needed to control the on-off of the pipeline system.

[0004] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0005] In order to at least partially solve the deficiencies in the prior art, the main purpose of the utility model is to provide a material distribution valve with a compact structure and strong practicality.

[0006] In order to achieve the above main purpose, the utility model discloses a dispensing valve, including a valve body, the valve body having a feed channel and two discharge channels, the two discharge channels are respectively connected to the feed channel and symmetrically arranged along the feed direction of the feed channel, each discharge channel is provided with a piston assembly, and the piston assembly is arranged at the inlet of the discharge channel to open or close the discharge channel;

[0007] It also includes a switching mechanism, which includes a rotating body, which is installed at the outlet of the feed channel through a rotating axis arranged in a direction orthogonal to the feeding direction of the feed channel; wherein a cam portion is provided on the rotating body, and during the reciprocating rotation of the rotating body, the cam portion at least abuts against the piston assembly in one of the discharge channels, so that at least one discharge channel is closed.

[0008] According to a specific implementation of the utility model, the cam portion is fan-shaped and has an arc-shaped outer wall surface; wherein, during the reciprocating rotation of the rotating body, the outer wall surface of the cam portion can abut against the piston assembly.

[0009] According to a specific implementation of the utility model, during the rotation of the rotary body, the outer wall surface can abut against the piston assemblies in the two discharge channels at the same time to close the two discharge channels at the same time.

[0010] According to a specific embodiment of the utility model, the switching mechanism further includes a limit member, which is arranged on the rotation path of the rotating body; wherein, when the side wall surface of the cam portion abuts against the limit member, the outer wall surface of the cam portion abuts against the piston assembly in one of the discharge channels and is separated from the piston assembly in the other discharge channel.

[0011] According to a specific embodiment of the utility model, the switching mechanism also includes a sensor group for detecting the current position of the rotating body, and the sensor group includes a plurality of sensors installed on the outside of the valve body; wherein, a detection part is provided at one end of the rotating shaft protruding out of the valve body, and the detection part can trigger different sensors respectively when the rotating body rotates.

[0012] According to a specific implementation of the utility model, the detection portion is in a sector shape corresponding to the cam portion.

[0013] According to a specific embodiment of the utility model, the piston assembly includes a sealing ring and a movable cover plate, the cover plate has a first position separated from the sealing ring and a second position abutting against the sealing ring to form a seal; wherein, when the cam portion abuts against the cover plate, the cover plate can be driven to switch from the first position to the second position to close the discharge channel.

[0014] According to a specific embodiment of the utility model, the piston assembly also includes:

[0015] A mounting seat, fixed on the inner wall of the discharge channel;

[0016] A piston rod is slidably arranged on the mounting seat and passes through the sealing ring, and a cover plate is mounted on the piston rod;

[0017] The elastic member is arranged on the mounting seat and is used for driving the piston rod or the cover plate to move so that the cover plate switches from the second position to the first position.

[0018] According to a specific implementation of the utility model, the mounting seat is cylindrical and is provided with a through hole portion for maintaining the discharge channel connected.

[0019] According to a specific implementation of the utility model, at least one feed port is provided on the feed channel, and a connector is provided at the feed port.

[0020] The utility model has the following beneficial effects: it provides a dosing valve which can change the working state of a piston assembly, wherein a rotating body in the dosing valve is installed at the outlet of a feed channel via a rotating shaft which is arranged in a direction orthogonal to the feeding direction of the feed channel; during the reciprocating rotation of the rotating body, a cam portion on the rotating body at least abuts against a piston assembly in one of the discharge channels, so that at least one discharge channel is closed, and then the on-off control of the two discharge channels can be achieved by changing the working position of the rotating body, and the overall structure has the advantages of strong compactness and high practicality.

[0021] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the material distribution valve of the utility model;

[0023] Figure 2 This is the internal structure diagram of the material distribution valve of the utility model;

[0024] Figure 3 It is a cross-sectional view of the material distribution valve of the utility model;

[0025] Figure 4 It is a structural diagram of a rotating body and a rotating axis;

[0026] Figure 5 This is the external structure diagram of the material distribution valve of the utility model;

[0027] Figure 6 This is an exploded view of the piston assembly. DETAILED DESCRIPTION

[0028] In the following description, many specific details are explained in combination with the embodiments to facilitate a full understanding of the present invention, but it should be understood that the following embodiments and detailed descriptions are only for illustrative purposes and do not limit the scope of protection of the present invention.

[0029] like Figure 1-2As shown, the dispensing valve of the embodiment includes a valve body 10 and a switching mechanism 20; wherein the valve body 10 has a feed channel 11 and two discharge channels 12, and illustratively, the cross-sections of the feed channel 11 and the two discharge channels 12 are preferably circular. The feed channel 11 and the two discharge channels 12 are arranged in a Y shape, and the two discharge channels 12 are respectively connected to the feed channel 11 and are symmetrically arranged along the feeding direction P of the feed channel 11; wherein, a connector 13 is preferably provided at the inlet of the feed channel 11 and the outlet of the discharge channel 12, and the connector 13 can be quickly connected to the pipeline in the pipeline system. Preferably, a plurality of feed ports (inlets) are preferably provided on the feed channel 11, and a connector 13 is provided at each feed port.

[0030] Specifically, each discharge channel 12 is provided with a piston assembly 30, and the piston assembly 30 is arranged at the entrance of the discharge channel 12 to open or close the discharge channel 12; Figure 2-3 and Figure 6 As shown, the exemplary piston assembly 30 includes a sealing ring 31 and a movable cover plate 32, wherein the cover plate 32 has a first position separated from the sealing ring 31 and a second position abutting against the sealing ring 31 to form a seal, and the opening and closing of the discharge channel 12 are achieved by switching the position of the cover plate 32.

[0031] Please continue reading Figure 6 The piston assembly 30 may further include a mounting seat 33, a piston rod 34 and an elastic member 35; the mounting seat 33 is fixed on the inner wall of the discharge channel 12, and is preferably cylindrical, and is provided with a through hole portion 331 for maintaining the discharge channel 12 through, and the through hole portion 331 includes, for example, four or other numbers of through holes.

[0032] In an optional embodiment, a deformable connecting member such as a rubber ring is provided on the outer periphery of the mounting seat 33. When the mounting seat 33 is connected to the inner wall of the discharge channel 12, the connecting member can adaptively deform to fix the mounting seat 33. In addition, this mounting structure is also conducive to adjusting the mounting seat 33 to the optimal installation position during assembly.

[0033] Furthermore, a sliding guide portion 332 is provided on the mounting seat 33, and the lower end of the piston rod 34 is slidably set on the sliding guide portion 332; illustratively, a limiting column 333 is provided on the sliding guide portion 332, and the limiting column 333 is, for example, a bolt, and a sliding groove 341 is provided on the piston rod 34, and the limiting column 333 extends into the sliding groove 341 to limit the lower end of the piston rod 34 from detaching from the sliding guide portion 332.

[0034] The upper end of the piston rod 34 passes through the sealing ring 31, and the cover plate 32 is installed on the piston rod 34 and located on the upper side of the sealing ring 31; the elastic member 35 is arranged on the mounting seat 33, and is used to drive the piston rod 34 or the cover plate 32 to move, so that the cover plate 32 switches from the second position to the first position. Specifically, the elastic member 35 is a straight spring, which is sleeved on the piston rod 34, and the two ends of the elastic member 35 are respectively in contact with the cover plate 32 and the mounting seat 33, thereby maintaining the cover plate 32 always having a tendency to move away from the sealing ring 31.

[0035] like Figure 2-4 As shown, the switching mechanism 20 includes a rotating body 21 and a rotating shaft 22, wherein the rotating body 21 is mounted to the outlet of the feed channel 11 via the rotating shaft 22; the rotating shaft 22 is arranged along a direction orthogonal to the feeding direction of the feed channel 11, and is driven, for example, by a motor 26; wherein a cam portion 21a is provided on the rotating body 21, and during the reciprocating rotation of the rotating body 21, the cam portion 21a at least abuts against a piston assembly 30 in one of the discharge channels 12, so that at least one discharge channel 12 is closed.

[0036] Furthermore, the cam portion 21a is fan-shaped and has an arc-shaped outer wall surface 211; the outer wall surface 211 of the cam portion 21a can abut against the cover plate 32 in the piston assembly 30 during the reciprocating rotation of the rotating body 21. In the embodiment, at a stage during the rotation of the rotating body 21, the outer wall surface 32 can abut against the cover plates 32 in the two discharge channels 12 at the same time to close the two discharge channels 12 at the same time.

[0037] like Figure 5 As shown, the switching mechanism 20 also includes a limit member 23 and a sensor group for detecting the current position of the rotating body 21; wherein the limit member 23 is arranged on the rotation path of the rotating body 21, and when the side wall surface 212 of the cam portion 21a abuts against the limit member 23, the outer wall surface 211 of the cam portion 21a abuts against the piston assembly 30 in one of the discharge channels 12 and is separated from the piston assembly 30 in the other discharge channel 12.

[0038] The sensor group is used to detect the current position of the rotating body 21, and includes a plurality of sensors 24 installed on the outside of the valve body 10; wherein, a detection portion 25 is provided at one end of the rotating shaft 22 protruding from the valve body 10, and the detection portion 25 is, for example, fan-shaped corresponding to the cam portion 21a. When the rotating body 21 rotates, the detection portion 25 can trigger different sensors 24 respectively. Exemplarily, the number of sensors 24 is three, and the three sensors 24 are respectively a first sensor 241, a second sensor 242 and a third sensor 243, and the three sensors are set as follows: 1) When the detection unit 25 triggers the first sensor 241 and the second sensor 242 at the same time, the detection result is that the left discharge channel 12 is closed, and the right discharge channel 12 is opened; 2) When the detection unit 25 triggers the second sensor 242 and the third sensor 243 at the same time, the detection result is that the left discharge channel 12 is closed, and the right discharge channel 12 is closed; 3) When the detection unit 25 only triggers the third sensor 243, the detection result is that the left discharge channel 12 is opened, and the right discharge channel 12 is closed.

[0039] Although the present invention is described above through embodiments, the above embodiments are only used to exemplarily describe the feasible implementation methods of the present invention, and are not used to limit the protection scope of the present invention. Any equivalent substitutions or changes made by those skilled in the art in accordance with the present invention should also be covered by the protection scope defined by the claims of the present invention.

Claims

1. A material distribution valve, comprising a valve body, the valve body having a feed channel and two discharge channels, the two discharge channels are respectively connected to the feed channel and symmetrically arranged along the feed direction of the feed channel, each of the discharge channels is provided with a piston assembly, the piston assembly is arranged at the entrance of the discharge channel to open or close the discharge channel; characterized in that: The switching mechanism comprises a rotating body, which is installed at the outlet of the feed channel via a rotating axis arranged in a direction orthogonal to the feeding direction of the feed channel; wherein a cam portion is provided on the rotating body, and during the reciprocating rotation of the rotating body, the cam portion at least abuts against the piston assembly in one of the discharge channels, so that at least one of the discharge channels is closed.

2. The dispensing valve according to claim 1, characterized in that: The cam portion is fan-shaped and has an arc-shaped outer wall surface; wherein, during the reciprocating rotation of the rotating body, the outer wall surface of the cam portion can abut against the piston assembly.

3. The dispensing valve according to claim 2, characterized in that: During the rotation of the rotating body, the outer wall surface can abut against the piston assemblies in the two discharge channels at the same time to close the two discharge channels at the same time.

4. The dispensing valve according to claim 2, characterized in that: The switching mechanism further includes a limit member, which is arranged on the rotation path of the rotating body; wherein, when the side wall surface of the cam portion abuts against the limit member, the outer wall surface of the cam portion abuts against the piston assembly in one of the discharge channels and is separated from the piston assembly in the other discharge channel.

5. The dispensing valve according to claim 4, characterized in that: The switching mechanism also includes a sensor group for detecting the current position of the rotating body, and the sensor group includes a plurality of sensors installed on the outside of the valve body; wherein a detection part is provided at one end of the rotating shaft protruding from the valve body, and the detection part can trigger different sensors respectively when the rotating body rotates.

6. The dispensing valve according to claim 5, characterized in that: The detection portion is in a sector shape corresponding to the cam portion.

7. The dispensing valve according to claim 1, characterized in that: The piston assembly includes a sealing ring and a movable cover plate, wherein the cover plate has a first position separated from the sealing ring and a second position abutting against the sealing ring to form a seal; wherein when the cam portion abuts against the cover plate, the cover plate can be driven to switch from the first position to the second position to close the discharge channel.

8. The dispensing valve according to claim 7, characterized in that: The piston assembly also includes: A mounting seat, fixed on the inner wall of the discharge channel; A piston rod is slidably arranged on the mounting seat and passes through the sealing ring, and the cover plate is mounted on the piston rod; An elastic member is arranged on the mounting seat and is used to drive the piston rod or the cover plate to move so that the cover plate switches from the second position to the first position.

9. The dispensing valve according to claim 8, characterized in that: The mounting seat is cylindrical and is provided with a through hole portion for maintaining the discharge channel connected thereto.

10. The dispensing valve according to claim 1, characterized in that: The feed channel is provided with at least one feed port, and a connector is provided at the feed port.

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