CN211344105U

CN211344105U - Control valve

Info

Publication number: CN211344105U
Application number: CN201921685015.0U
Authority: CN
Inventors: 辛芳; 吴克麟; 曹发华; 杨生锦; 陈良
Original assignee: Quanzhou Kefa Sanitary Ware Co ltd
Current assignee: Quanzhou Kefa Sanitary Ware Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-08-25
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a control valve, which comprises a valve body, a valve core shaft, an upper valve plate and a lower valve plate; the bottom of the valve body is provided with a water inlet pipe and two water outlet pipes; the inner cavity of the water inlet pipe straight-through valve body; lower valve body fixed mounting has two apopores that set up with two outlet pipe one-to-one intercommunication down on the valve body, go up the valve body stack and put down on the valve body and by the rotatory action of case axle area action, upward seted up fan-shaped breach on the valve body, the valve body has middle stop position, left logical water level and right logical water level relatively down of fan-shaped breach's rotation state, left logical water level and right logical water level correspond the position that is located for two apopores, the aperture of two apopores is the setting of reducing gradually towards middle stop position direction. The control valve of the scheme realizes gradual increase and decrease of the water yield of the pipeline, is ideal and continuous gradual regulation and control, and can simply regulate and control the required water yield in use. Moreover, the control valve has the advantages of simple structural design, reliable structure, small volume and small torque of the knob.

Description

Control valve

Technical Field

The utility model relates to a valve gear technical field specifically indicates a control valve.

Background

The control valve is an actuator in an automatic control system, and the control valve is often adopted in a water outlet occasion to control water outlet. The types and forms of the control valves are various, and the effluent regulation performance is a core design point of the control valves. At present, most control valves can gradually increase and decrease the water outlet of a pipeline, but the gradual increase and decrease regulation is not ideal enough, and the required water outlet is difficult to be simply regulated and controlled in use. In addition, the existing control valve also has the defects of complex structure, large volume, large knob torque and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a control valve accomplishes simply to regulate and control required water yield size, has that structural design is simple, and the structure is reliable, and is small, the little advantage of knob moment of torsion.

In order to achieve the above purpose, the solution of the present invention is:

a control valve comprises a valve body, a valve core shaft, an upper valve plate and a lower valve plate; the bottom of the valve body is provided with a water inlet pipe and two water outlet pipes; the inner cavity of the water inlet pipe straight-through valve body; lower valve body fixed mounting has two apopores that set up with two outlet pipe one-to-one intercommunication down on the valve body, go up the valve body stack and put down on the valve body and by the rotatory action of case axle area action, upward seted up fan-shaped breach on the valve body, the valve body has middle stop position, left logical water level and right logical water level relatively down of fan-shaped breach's rotation state, left logical water level and right logical water level correspond the position that is located for two apopores, the aperture of two apopores is the setting of reducing gradually towards middle stop position direction.

The two water outlet holes are in a shape of dog teeth, the tip of the dog teeth faces to one side of the middle stopping position, and the root of the dog teeth faces back to one side of the middle stopping position.

The lower surface of the lower valve plate is provided with a rubber pad, and the rubber pad is provided with two communicating holes correspondingly matched with the two water outlet pipes.

The bottom of the valve body is provided with a rubber mat sinking groove, and the rubber mat is arranged in the rubber mat sinking groove in a matching manner.

A first tension spring piece is arranged between the valve core shaft and the upper valve plate.

The outer end of the valve plug shaft extends out of the valve body and is connected with a knob assembly.

The knob assembly comprises a knob and a knob fixing sleeve; the outer end part of the valve core shaft is connected with the knob through a knob fixing sleeve.

The top of the valve body is provided with an upper valve cover, the upper valve cover is provided with an external part and a nested part, the nested part is embedded in the valve body, and a water inlet cavity for the water inlet pipe to be communicated is formed between the nested part and the valve body; the valve core shaft extends into the nesting part, and the upper valve plate and the lower valve plate are arranged in the nesting part.

The lower valve body is provided with a limiting notch, and a limiting lug which is aligned with the limiting notch is formed on the nesting part.

After adopting above-mentioned scheme, this novel control valve, for prior art's beneficial effect lie in: the control valve controls the proper matching position of the upper valve plate relative to the lower valve plate through the valve core shaft so as to realize the basic functions of controlling water outlet or water stop of the pipeline. The fan-shaped breach of valve block has three rotation state on the innovation ground design: a middle cut-off position, a left through water level and a right through water level; two apopores on the lower valve plate distribute and lead to the water level with the right side with the left side and lead to the water level and correspond, and the aperture of these two apopores is the setting of reducing gradually towards middle by a position direction. Therefore, when the fan-shaped notch is rotated to the middle stop position, the control valve stops water; when the fan-shaped notch rotates leftwards to the left water passing position or rotates rightwards to the right water passing position, water outlet of the left water outlet pipe and the right water outlet pipe is respectively realized, the water outlet quantity of the pipeline is gradually increased and decreased by means of the matching of the fan-shaped notch and the special water outlet hole, ideal and continuous gradual change regulation is realized, and the water outlet quantity required by simple regulation is realized in use. Moreover, the control valve has the advantages of simple structural design, reliable structure, small volume and small torque of the knob.

Drawings

FIG. 1 is a perspective view of the novel control valve;

FIG. 2 is an exploded view of the novel control valve;

FIG. 3 is a schematic view of a valve cartridge cover of the novel control valve;

FIG. 4 is a schematic view of the lower valve plate of the novel control valve;

FIG. 5 is a schematic view of the upper plate of the novel control valve;

FIG. 6 is a schematic view of the novel control valve cushion;

FIG. 7 is a schematic view of the novel control valve body;

fig. 8 is a cross-sectional view of the novel control valve.

Description of the reference symbols

The valve comprises a valve body 1, a water inlet pipe 11, two water outlet pipes 12, a convex column 13 and a water inlet cavity 14;

a lower valve plate 2, a water outlet hole 21, a limit notch 22,

the upper valve plate 3, the fan-shaped notch 31 and the connecting groove 32; a spool shaft 4, a connecting post 41;

the rubber pad 5, a communication hole 51, an abdication notch 52 and a column hole 53;

the valve upper cover 6, the external part 61, the nesting part 62, the abdicating arc groove 621, the water through port 622,

a limit bump 623; a knob assembly 7, a knob 71, a knob fixing sleeve 72,

a first tension spring member 81, a second tension spring member 82;

gasket 91, seal 92.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments.

The present disclosure relates to a control valve, as shown in fig. 1-8, which mainly includes a valve body 1, a lower valve plate 2, an upper valve plate 3, and a valve core shaft 4.

The valve body 1 is provided with an inner cavity 10, and the lower valve plate 2, the upper valve plate 3 and the valve plug shaft 4 are assembled in the inner cavity 10 in a matching mode. The bottom of the valve body 1 is provided with a water inlet pipe 11 and two water outlet pipes 12. The water inlet pipe 11 is arranged through the inner cavity 10 of the valve body 1.

The lower valve body 2 is fixedly arranged in the valve body 1, and the lower valve body 2 is provided with two water outlet holes 21 which are communicated with the two water outlet pipes 12 in a one-to-one correspondence manner. The upper valve body 3 is overlapped on the lower valve body 2, the valve core shaft 4 is connected with the upper valve body 3, and the upper valve body 3 is driven by the valve core shaft 4 to synchronously rotate. The valve core shaft 4 is connected with the upper valve body 3, the upper valve body 3 is provided with a connecting groove 32, the valve core shaft 4 is provided with a connecting column 41, and the connecting groove 32 is matched with the connecting column 41 for insertion and assembly.

The upper valve body 3 is provided with a fan-shaped notch 31, the rotating state of the fan-shaped notch 31 relative to the lower valve body 2 is provided with a middle stop position, a left water passing position and a right water passing position, and the left water passing position and the right water passing position correspond to the positions of the two water outlet holes 21. In other words, the positions of the lower valve body 2 corresponding to the two water outlet holes 21 are used as the left water passing level and the right water passing level of the fan-shaped notch 31, and the space between the two water outlet holes 21 is used as the middle stopping position of the fan-shaped notch 31. The fan-shaped notch 31 moves back and forth at the middle stop position, the left water passing position and the right water passing position, so that the water outlet conversion and water stop functions are realized. When the fan-shaped notch 31 is rotated to the middle stop position, the control valve stops water; when the fan-shaped gap 31 rotates left to the left water passing level or rotates right to the right water passing level, the water outlet of the left water outlet pipe 12 and the water outlet of the right water outlet pipe 12 are respectively realized.

The two water outlet holes 21 are designed in such a way that the diameter of the water outlet holes gradually decreases toward the middle stop position. According to the specific preferred scheme, the two water outlet holes 21 are in the shape of a dog tooth, the tip of the dog tooth faces to one side of the middle stopping position, and the root of the dog tooth is back to one side of the middle stopping position. Therefore, when water is discharged, the fan-shaped notch 31 is matched with the special water outlet hole 21, the radial adjustment of the fan-shaped notch 31 is matched with the water outlet hole 21 with the variable diameter, the gradual increase and decrease of the water yield of the pipeline are realized, the ideal continuous gradual change regulation is realized, the required water yield can be obtained by very simple regulation in use, and the defects that the water yield is too large or too small and the gradual change regulation is not ideal in the regulation in the prior art are well overcome.

Preferably, in order to enhance the sealing assembly between the lower valve plate 2 and the two water outlet pipes 12, a rubber pad 5 is arranged on the lower surface of the lower valve plate 2, and the rubber pad 5 is provided with two communicating holes 51 correspondingly matched with the two water outlet pipes 12. The rubber mat 5 is assembled in the valve body 1 in such a way that a rubber mat sink groove is formed in the bottom of the inner cavity of the valve body 1, and the rubber mat 5 is arranged in the rubber mat sink groove in a matched mode. Specifically, the rubber mat sink groove is a groove structure obtained by a design that the water inlet pipe 11 and the two water outlet pipes 12 are correspondingly protruded towards the inner cavity, and the sealing performance is enhanced by the design. The rubber pad 5 is concavely provided with a yielding notch 52 corresponding to yielding of the water feeding pipe 11. In addition, the rubber pad 5 is further provided with a column hole 53, and a convex column 13 is convexly arranged at the bottom of the inner cavity corresponding to the valve body 1.

Preferably, a first tension spring member 81 is further disposed between the valve plug shaft 4 and the upper valve plate 3. Therefore, by means of the tensioning effect of the first tensioning spring part 81, the upper valve plate 3 can freely and smoothly rotate relative to the lower valve plate 2, meanwhile, the assembling tightness between the upper valve plate 3 and the lower valve plate 2 is ensured, and the structural sealing performance and the water outlet regulation and control are ensured.

In the preferred scheme, the outer end part of the valve core shaft 4 extends out of the valve body 1 and is connected with the knob assembly 7, so that the valve core shaft 4 is operated conveniently, and the water outlet operation is realized. The knob assembly 7 comprises a knob 71 and a knob fixing sleeve 72; the outer end of the valve core shaft 4 is connected with the knob 71 through a knob fixing sleeve 72.

Preferably, in order to facilitate structural assembly, the top of the valve body 1 is provided with the valve upper cover 6, the valve upper cover 6 is provided with an outer part 61 and a nesting part 62, the nesting part 62 is embedded in the inner cavity 10 of the valve body 1, the valve core shaft 4 extends into the nesting part 62, and the upper valve plate 2 and the lower valve plate 3 are both accommodated in the nesting part 62. A water inlet cavity 14 for the water inlet pipe 11 to be communicated is formed between the nesting part 62 and the valve body 1; specifically, the nesting portion 62 is concavely formed with an abdicating arc groove 621, and the abdicating arc groove 621 mainly constitutes the water inlet cavity 14. The abdicating arc groove 621 is arranged corresponding to the water inlet pipe 11. The nested portion 62 is provided with a water through opening 622 which is internally and externally communicated, and the upper valve plate 2 is arranged in the nested portion 62 so as to incompletely block the water through opening 622, thereby facilitating water to flow in. Thus, the water fed from the water inlet pipe 11 enters the water inlet chamber 14 and then flows to the upper side of the corresponding upper valve plate 2 in the nesting part 62 through the water through opening 622. The water stopping can be realized by adjusting the position of the fan-shaped notch 31 of the upper valve plate 3, or the water stopping can be realized by sequentially passing through the fan-shaped notch 31 and any water outlet hole 21 until water is discharged from any water outlet pipe 12.

Preferably, the lower valve body 2 is fixedly assembled in the nesting portion 62 in a manner that the lower valve body 2 is formed with a limiting notch 22, and the nesting portion 62 is formed with a limiting projection 623 aligned with the limiting notch 22.

Preferably, a second tensioning spring part 82 is arranged between the valve upper cover 6 and the knob fixing sleeve 72, and similarly, the free rotation adjusting function between the knob assembly 7 and the valve plug shaft 4 in a tensioning state is achieved.

Preferably, the valve core shaft 4 is sleeved with a gasket 91, the valve core shaft 4 extends from the nesting portion 62, only the upper end portion extends from the external portion 61, and the gasket 91 is correspondingly limited and sealed on a step surface corresponding to the upper end position of the nesting portion 62, so that a sealing effect between the valve core shaft 4 and the valve upper cover 6 is achieved. Furthermore, a sealing element 92 is also provided on the valve plug shaft 4 for sealing interaction with the outer portion 61. A sealing member 93 is also provided between the valve upper cover 6 and the valve body 1.

The foregoing is only a preferred embodiment of the present invention and all equivalent changes and modifications made within the scope of the present invention are intended to be covered by the appended claims.

Claims

1. A control valve, characterized by: comprises a valve body, a valve core shaft, an upper valve plate and a lower valve plate; the bottom of the valve body is provided with a water inlet pipe and two water outlet pipes; the inner cavity of the water inlet pipe straight-through valve body; lower valve body fixed mounting has two apopores that set up with two outlet pipe one-to-one intercommunication down on the valve body, go up the valve body stack and put down on the valve body and by the rotatory action of case axle area action, upward seted up fan-shaped breach on the valve body, the valve body has middle stop position, left logical water level and right logical water level relatively down of fan-shaped breach's rotation state, left logical water level and right logical water level correspond the position that is located for two apopores, the aperture of two apopores is the setting of reducing gradually towards middle stop position direction.

2. A control valve as defined in claim 1, wherein: the two water outlet holes are in a shape of dog teeth, the tip of the dog teeth faces to one side of the middle stopping position, and the root of the dog teeth faces back to one side of the middle stopping position.

3. A control valve as defined in claim 1, wherein: the lower surface of the lower valve plate is provided with a rubber pad, and the rubber pad is provided with two communicating holes correspondingly matched with the two water outlet pipes.

4. A control valve as defined in claim 3, wherein: the bottom of the valve body is provided with a rubber mat sinking groove, and the rubber mat is arranged in the rubber mat sinking groove in a matching manner.

5. A control valve as defined in claim 1, wherein: a first tension spring piece is arranged between the valve core shaft and the upper valve plate.

6. A control valve as defined in claim 1, wherein: the outer end of the valve plug shaft extends out of the valve body and is connected with a knob assembly.

7. A control valve as defined in claim 6, wherein: the knob assembly comprises a knob and a knob fixing sleeve; the outer end part of the valve core shaft is connected with the knob through a knob fixing sleeve.

8. A control valve as defined in claim 1, wherein: the top of the valve body is provided with an upper valve cover, the upper valve cover is provided with an external part and a nested part, the nested part is embedded in the valve body, and a water inlet cavity for the water inlet pipe to be communicated is formed between the nested part and the valve body; the valve core shaft extends into the nesting part, and the upper valve plate and the lower valve plate are arranged in the nesting part.

9. A control valve as defined in claim 8, wherein: the lower valve body is provided with a limiting notch, and a limiting lug which is aligned with the limiting notch is formed on the nesting part.