Rotary valve for liquid path control

Abstract

The utility model belongs to the technical field of rotary valves, and particularly relates to a rotary valve for liquid path control, which comprises a valve body, the outer side of the valve body is fixedly connected with a liquid inlet pipe and a plurality of liquid outlet pipes, the upper side of the valve body is detachably and fixedly connected with a valve cover, the interior of the valve body is rotatably connected with a valve core column, and the valve core column comprises a plurality of core blocks which are sequentially arranged from top to bottom. Every two adjacent core blocks are rotationally connected, a central drain hole is formed in the axis of each core block, every two adjacent core blocks are communicated through the central drain holes, water outlet channels are formed in the core blocks, one ends of the water outlet channels are communicated with the central drain holes, the liquid outlet pipes are matched with the water outlet channels one by one, and a water inlet is fixedly connected to the bottom end in the valve body. One end of the liquid inlet pipe is fixedly connected with the water inlet, and the central drain hole located at the lowermost end is communicated with the liquid inlet pipe through the water inlet. According to the utility model, the liquid outlet path can be regulated and controlled according to the discharging requirement, and various liquid outlet path combination modes are provided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rotary valve, concretely relates to a rotary valve for liquid path control. BACKGROUND

[0002] In many fields involving liquid delivery and distribution, such as chemical production, food processing, medical equipment, and laboratory instruments, the accuracy and flexibility of liquid path control are crucial. Rotary valves, as a common liquid path control component, play a key role in these fields.

[0003] In the prior art, a rotary valve is usually composed of a valve body, a valve core, and a driving device. The valve body is provided with an inlet and an outlet, and the valve core is installed in the valve body and can rotate under the action of the driving device. By rotating the valve core, the communication state between the inlet and different outlets is changed, thereby achieving control of the liquid path. For example, some simple rotary valves use a single valve core structure, and a single flow channel is opened on the valve core. When the valve core rotates to a specific position, the flow channel is connected to the corresponding outlet, allowing liquid to flow from the inlet to the outlet. Some more complex rotary valves use multiple valve cores or multiple flow channels to achieve simultaneous or sequential control of multiple outlets.

[0004] Although existing rotary valves can meet the basic needs of liquid path control to some extent, the valve core design of existing rotary valves is relatively fixed, and usually only a limited number of liquid path combinations can be achieved. For example, for a multi-valve core rotary valve, the relative positions and angles of the valve core's various water outlets are generally fixed, and the combination of the liquid outlets cannot be adjusted flexibly according to the actual discharge requirements. SUMMARY

[0005] The utility model aims at providing a rotary valve for liquid path control, which can regulate and control the liquid path according to the discharge requirements, and has multiple liquid path combination modes.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A rotary valve for liquid path control, comprising a valve body, the outer side of the valve body is fixedly connected with an inlet pipe and a plurality of outlet pipes, the upper side of the valve body is detachably fixedly connected with a valve cover;

[0008] The valve core post is rotationally connected inside the valve body, the valve core post comprises a plurality of core blocks arranged in sequence from top to bottom, two adjacent core blocks are rotationally connected, a center water flow hole is formed at the center of the core block, two adjacent core blocks are communicated through the center water flow hole, a water outlet channel is formed in the core block, one end of the water outlet channel is communicated with the center water flow hole, the liquid outlet pipe is matched with the water outlet channel, the bottom end of the valve body is fixedly connected with a water inlet in the inside, one end of the liquid inlet pipe is fixedly connected with the water inlet, the center water flow hole at the lowermost end is communicated with the liquid inlet pipe through the water inlet;

[0009] Any number of the core blocks can be rotated to adjust the included angle between two adjacent water outlet channels.

[0010] Further, the liquid inlet pipe and the liquid outlet pipe are fixedly connected with maintenance valves.

[0011] Further, the valve cover is rotationally connected with a rotating rod, the lower end of the rotating rod is fixedly connected with the core block at the uppermost end, and a locking piece is arranged between two adjacent core blocks.

[0012] Further, the locking piece comprises a groove formed in the core block, a sliding block is vertically and slidably connected in the groove, the upper end of the sliding block is fixedly connected with a positioning rod, the upper end of the positioning rod can slide to the upper side of the core block, a plurality of positioning holes in annular array are formed in the lower side of the core block, the positioning holes are matched with the positioning rod, and a return spring is fixedly connected in the lower side of the sliding block in the groove.

[0013] Further, the sliding block is further threadedly connected with a locking screw.

[0014] Further, the inner wall of the valve body is fixedly connected with a sealing gasket outside the core block, and a through hole opposite to the liquid outlet pipe is formed in the sealing gasket.

[0015] The sealing gasket is hollow, the outer side of the valve body is fixedly connected with an air pump, and the air pump is communicated with the sealing gasket through an air guide pipe.

[0016] The technical effects achieved by the utility model are as follows:

[0017] The rotating valve for liquid path control of the utility model can adjust the relative positions of a plurality of water outlet channels by rotating any number of core blocks, can simultaneously communicate any number and position of water outlet channels with liquid outlet pipes, and can regulate and control the liquid path of liquid outlet according to the requirements of liquid outlet, and has a plurality of liquid path combination modes of liquid outlet. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the utility model;

[0019] Figure 2 is a sectional structure schematic view of the utility model;

[0020] Figure 3 is a whole sectional structure schematic view of the utility model;

[0021] Figure 4 is a structure schematic view of the utility model core block;

[0022] Figure 5 is a partial enlarged view of the utility model core block.

[0023] In the drawing, the component list represented by each sign is as follows:

[0024] 1, valve body;2, valve cover;3, liquid inlet pipe;4, liquid outlet pipe;5, maintenance valve;6, rotating rod;7, core block;8, sealing gasket;9, air pump;10, air guide pipe;11, water inlet;12, groove;13, sliding block;14, positioning rod;15, locking screw;16, positioning hole;17, center water flow hole;18, water outlet channel;19, return spring. Specific implementation

[0025] In order to make the purpose and the advantage of the utility model more clearly, the utility model is specifically explained below in combination with examples.It should be understood that the following text is only used to describe one or several specific implementation manners of the utility model, and does not strictly limit the protection scope specifically requested by the utility model.

[0026] As Figures 1-5 Indicated, a kind of rotary valve for liquid path control, including valve body 1, the outside of valve body 1 is fixedly connected with liquid inlet pipe 3 and multiple liquid outlet pipes 4, liquid inlet pipe 3 and liquid outlet pipe 4 are all fixedly connected with maintenance valve 5, it is convenient to overhaul the mechanism inside valve body 1, the upper side of valve body 1 is detachably fixedly connected with valve cover 2, its fixed mode can be screw connection or screw connection;

[0027] Valve body 1 is rotatably connected with valve core column inside, valve core column includes multiple core blocks 7 arranged sequentially from top to bottom, adjacent two core blocks 7 are rotatably connected, center water flow hole 17 is formed at the axis of core block 7, adjacent two core blocks 7 are communicated by center water flow hole 17, water outlet channel 18 is formed in core block 7, one end of water outlet channel 18 and center water flow hole 17 are communicated, liquid outlet pipe 4 and water outlet channel 18 are one-to-one adaptation, the bottom end of valve body 1 is fixedly connected with water inlet 11 inside, one end of liquid inlet pipe 3 and water inlet 11 are fixedly connected, the center water flow hole 17 at the lowermost end and liquid inlet pipe 3 are communicated by water inlet 11, at this time, liquid is introduced into center water flow hole 17 by liquid inlet pipe 3, when water outlet channel 18 and liquid outlet pipe 4 are opposite, the liquid in center water flow hole 17 can be discharged by liquid outlet pipe 4.

[0028] As shown in Figures 1-3 Any number of core blocks 7 can be rotated to adjust the included angle between two adjacent water outlet channels 18, thereby adjusting the relative position of the plurality of water outlet channels 18, and simultaneously connecting any number and position of water outlet channels 18 and liquid outlet pipe 4, so as to regulate the liquid path according to the discharge requirement, and has multiple liquid outlet path combination modes.

[0029] The rotation of the core block 7 can be electric rotation, that is, during use, the corresponding core block 7 is driven to rotate by a plurality of electric drive devices;

[0030] The rotation of the core block 7 can also be manual rotation, that is, the rotation angle of the plurality of core blocks 7 is adjusted in advance during installation, and then the plurality of core blocks 7 are synchronously rotated.

[0031] In the technical solution, the valve cover 2 is rotationally connected with a rotating rod 6, the lower end of the rotating rod 6 is fixedly connected with the uppermost core block 7, and a locking member is arranged between the two connected core blocks 7 for locking the angle between the two adjacent core blocks 7 after the angle adjustment of the core blocks 7 is completed. When adjusting the angle between the two core blocks 7, the valve cover 2 can be removed, and then the locking member of the core block 7 is unlocked, so that the core block 7 can be rotated.

[0032] As shown in Figures 3-5 The locking member includes a groove 12 opened in the core block 7, a sliding block 13 vertically slidably connected in the groove 12, a positioning rod 14 fixedly connected to the upper end of the sliding block 13, and the upper end of the positioning rod 14 being slidable to the upper side of the core block 7. A plurality of positioning holes 16 arranged in a ring array are opened in the lower side of the core block 7, the positioning holes 16 and the positioning rod 14 are matched, the positioning rod 14 on the lower core block 7 can be inserted into any one of the positioning holes 16 on the upper core block 7, and the fixing between the two adjacent core blocks 7 is completed. The inside of the groove 12 is fixedly connected with a return spring 19 below the sliding block 13, and the elasticity of the return spring 19 can automatically push the positioning rod 14 out, so that the positioning rod 14 enters any one of the positioning holes 16, thereby the locking and unlocking between the two adjacent core blocks 7 can be completed by sliding the positioning rod 14.

[0033] Meanwhile, the sliding block 13 can also be threadedly connected with a locking screw 15, and the position of the sliding block 13 can be locked by the locking screw 15.

[0034] As shown in Figures 1-3 The inner wall of the valve body 1 is fixedly connected with a sealing gasket 8 outside the core block 7, and the sealing gasket 8 is provided with a through hole opposite to the liquid outlet pipe 4;

[0035] The sealing gasket 8 is hollowly arranged, the outer side of the valve body 1 is fixedly connected with an air pump 9, the air pump 9 is communicated with the sealing gasket 8 through a gas guide pipe 10, so that the expansion range of the sealing gasket 8 can be controlled by adjusting air pressure, when the volume of the sealing gasket 8 is reduced, the core block 7 can be more simply installed and disassembled, when the volume of the sealing gasket 8 is increased, the sealing property is better.

[0036] The above is only the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application. The structure, device and operation method not specifically described and explained in the present application, if no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A rotary valve for use in fluid path control, characterized by: Including the valve body (1), the outer side of the valve body (1) is fixedly connected with the liquid inlet pipe (3) and a plurality of liquid outlet pipes (4), and the upper side of the valve body (1) is detachably fixedly connected with the valve cover (2); The valve body (1) is rotatably connected with a valve core column, the valve core column comprises a plurality of core blocks (7) arranged in sequence from top to bottom, any two adjacent core blocks (7) are rotatably connected, a center water flow hole (17) is formed at the center of the core block (7), any two adjacent core blocks (7) are connected through the center water flow hole (17), a water outlet channel (18) is formed in the core block (7), one end of the water outlet channel (18) is connected with the center water flow hole (17), the liquid outlet pipe (4) and the water outlet channel (18) are matched one by one, and the bottom end of the valve body (1) is fixedly connected with a water inlet (11), one end of the liquid inlet pipe (3) is fixedly connected with the water inlet (11), and the center water flow hole (17) at the lowermost end is connected with the liquid inlet pipe (3) through the water inlet (11). Any number of the core blocks (7) can be rotated to adjust the included angle between any two adjacent water outlet channels (18).

2. The rotary valve for control of fluid paths according to claim 1, characterized in that: The liquid inlet pipe (3) and the liquid outlet pipe (4) are fixedly connected with an overhaul valve (5).

3. The rotary valve for fluid path control according to claim 1, characterized by: The valve cover (2) is rotatably connected with a rotating rod (6), the lower end of the rotating rod (6) is fixedly connected with the core block (7) at the uppermost end, and a locking member is arranged between the two connected core blocks (7).

4. A rotary valve for fluid path control according to claim 3, characterized in that: The locking member comprises a groove (12) formed in the core block (7), a sliding block (13) is vertically and slidably connected in the groove (12), the upper end of the sliding block (13) is fixedly connected with a positioning rod (14), the upper end of the positioning rod (14) can slide to the upper side of the core block (7), a plurality of positioning holes (16) in annular array are formed in the lower side of the core block (7), the positioning holes (16) are matched with the positioning rod (14), and a return spring (19) is fixedly connected in the groove (12) and located below the sliding block (13).

5. A rotary valve for fluid path control according to claim 4, characterized in that: The sliding block (13) is further threadedly connected with a locking screw (15).

6. The rotary valve for fluid path control according to claim 1, characterized by: The inner wall of the valve body (1) is fixedly connected with a sealing gasket (8) located outside the core block (7), and a through hole opposite to the liquid outlet pipe (4) is formed in the sealing gasket (8); The sealing gasket (8) is hollow, the outer side of the valve body (1) is fixedly connected with an air pump (9), and the air pump (9) is connected with the sealing gasket (8) through an air guide pipe (10).

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