CN217272010U

CN217272010U - Electric control gas valve

Info

Publication number: CN217272010U
Application number: CN202220231107.7U
Authority: CN
Inventors: 梁垚垚; 王振华; 梁圣佶; 屠飞英; 章永钏; 黄慧慧; 俞伟冬
Original assignee: Zhejiang Xintao Intelligent Control Technology Co ltd
Current assignee: Zhejiang Xintao Intelligent Control Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-08-23
Anticipated expiration: 2032-01-27

Abstract

The application discloses automatically controlled gas valve, including valve body, distribution spare and drive assembly, the valve body has inlet channel, air outlet channel and the distribution chamber between the two, inlet channel with air outlet channel and distribution chamber cross and form air inlet and gas outlet respectively at distribution chamber lateral wall, the distribution spare set up in the distribution chamber, the disc structure of distribution spare for pasting the distribution chamber inner wall is pasted to the distribution spare to can rotate around a pivot, the distribution spare has the distribution hole that corresponds the setting with the gas outlet, at distribution spare rotation in-process, can adjust the overlapping area between gas outlet and the distribution hole, drive assembly is including setting up in the outer motor of valve body and setting up in the distribution intracavity by motor drive's master gear, the master gear is used for the drive distribution spare rotates. Compared with the prior art, the electric control gas valve does not need extra parts to shield the driving gear so as to reduce the parts of the electric control gas valve.

Description

Electric control gas valve

Technical Field

The application relates to the field of valves, in particular to an electric control gas valve.

Background

The pipeline gas or liquefied gas is used as fuel in present household appliances such as water heaters, gas stoves and the like, and the pipeline gas or liquefied gas is higher in heat efficiency and high in temperature rise rate compared with electric heating.

At present, the air output of a pipeline is adjusted through an electric control gas valve, the electric control gas valve comprises a valve body and an air distribution piece, an air outlet is arranged on the air distribution piece, an air outlet hole is formed in the valve body, the air distribution piece rotates, the air outlet hole in the air distribution piece can be aligned to the air outlet, air outlet is achieved, the overlapping area of the air outlet hole and the air outlet hole is different, and the air output difference is caused.

The electric control gas valve drives the gas distribution piece through the transmission device, the transmission device comprises a transmission shaft, a driving gear and a driven gear, one end of the transmission shaft extends into the valve body and is connected with the gas distribution piece, the other end of the transmission shaft extends out of the valve body and is connected with the driven gear, and the driving gear is in meshing transmission with the driven gear to drive the gas distribution piece to rotate through the transmission shaft.

However, since the driving gear and the driven gear are both located outside the valve body, the driving gear and the driven gear need to be shielded by the movement.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present application provides an electrically controlled gas valve comprising:

the valve body is provided with an air inlet channel, an air outlet channel and an air distribution cavity between the air inlet channel and the air outlet channel, and the air inlet channel, the air outlet channel and the air distribution cavity are intersected to form an air inlet and an air outlet on the side wall of the air distribution cavity respectively;

the gas distribution piece is of a disc-shaped structure attached to the inner wall of the gas distribution cavity and can rotate around a rotating shaft, the gas distribution piece is provided with a gas distribution hole arranged corresponding to the gas outlet, and the overlapping area between the gas outlet and the gas distribution hole can be adjusted in the rotating process of the gas distribution piece;

the driving assembly comprises a motor arranged outside the valve body and a main gear arranged in the air distribution cavity and driven by the motor, and the main gear is used for driving the air distribution piece to rotate.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the edge of the gas distribution member has a gear ring engaged with the main gear.

Optionally, the inner wall of the air distribution cavity is provided with a plane which is attached to the air distribution member, and the air outlet is arranged on the plane; and an elastic part which acts on the air distribution part to enable the air distribution part to be attached to the plane is arranged in the air distribution cavity.

Optionally, a partition plate for transmitting the acting force of the elastic member is arranged on one side of the air distribution member, which is opposite to the plane.

Optionally, the partition plate is sleeved on the rotating shaft in a penetrating manner, and a positioning structure is arranged between the partition plate and the inner wall of the gas distribution cavity.

Optionally, the positioning structure includes:

the positioning column is arranged on the inner wall of the air distribution cavity;

and the positioning hole is arranged on the partition plate and matched with the positioning column.

Optionally, the valve body includes an upper valve body and a lower valve body, the air inlet channel is disposed in the lower valve body, the air outlet channel is disposed in the upper valve body, and the air distribution cavity is disposed at a joint of the upper valve body and the lower valve body.

Optionally, a sealing ring surrounding the air distribution cavity is arranged between the upper valve body and the lower valve body.

Optionally, the motor is fixed on the upper valve body, and an output shaft of the motor extends into the air distribution cavity to be connected with the main gear.

Optionally, the lower valve body is further provided with at least one normally open channel, and the normally open channel is communicated with the air distribution cavity.

In this application, the driving gear is shielded without an additional component in the electric control gas valve, so that the number of components of the electric control gas valve is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an electrically controlled gas valve according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of the electrically controlled gas valve of FIG. 1;

FIG. 3 is a cross-sectional illustration of the electrically controlled gas valve of FIG. 1;

FIG. 4 is a cross-sectional illustration of the electrically controlled gas valve of FIG. 1 from another perspective;

FIG. 5 is a schematic view of a portion of the electrically controlled gas valve of FIG. 1;

FIG. 6 is a schematic view of the structure of FIG. 5 with the partition omitted;

FIG. 7 is a schematic structural view of the upper valve body of FIG. 5;

FIG. 8 is a schematic structural view of the air distribution member in FIG. 2;

FIG. 9 is a schematic view of the structure of the air distribution hole in FIG. 8;

FIG. 10 is a diagram illustrating the air distribution holes and the air outlets of the air distribution piece of FIG. 2 in the original state, the 1 st position, the 2 nd position and the 3 rd position;

FIG. 11 is a view showing the matching of the air distribution holes and the air outlets in the positions of 4, 5, 6 and 7 of the air distribution piece in FIG. 2;

FIG. 12 is a diagram of the air distribution holes and the air outlets in the position of 8 and 9 of the air distribution piece in FIG. 2.

The reference numerals in the figures are illustrated as follows:

100. an electrically controlled gas valve;

10. a valve body; 11. an intake passage; 111. an air inlet joint; 12. an air outlet channel; 121. an air outlet joint; 13. A gas distribution cavity; 132. an air outlet; 134. a plane; 14. an elastic member; 15. a partition plate; 16. a positioning structure; 161. a boss; 162. a positioning column; 163. an avoidance groove; 17. an upper valve body; 18. a lower valve body; 181. a normally open channel; 182. a normally open connector;

20. a gas distribution member; 21. air distribution holes; 211. a gas regulating section; 212. a first edge; 213. a second edge; 214. A circular arc section; 215. a transition section; 216. a torus region; 217. a gas expansion section; 22. a ring gear; 23. a rotating shaft; 25. a limiting block;

30. a drive assembly; 31. a motor; 32. a main gear; 33. a drive shaft.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 9, the present application provides an electrically controlled gas valve 100, which includes a valve body 10, the valve body 10 has an air inlet channel 11, an air outlet channel 12 and an air distribution chamber 13 therebetween, the intersection of the air inlet channel 11 and the air outlet channel 12 with the air distribution chamber 13 forms an air inlet and an air outlet 132 on the side wall of the air distribution chamber 13, respectively. The air inlet channel 11 and the air outlet channel 12 are respectively communicated with an external pipeline through an air inlet joint 111 and an air outlet joint 121.

The electrically controlled gas valve 100 further comprises a gas distributing member 20 disposed in the gas distributing chamber 13, and the gas distributing member 20 has a gas distributing hole 21 disposed corresponding to the gas outlet 132. During the rotation of the air distribution member 20, the overlapping area between the air outlet 132 and the air distribution hole 21 (including the case where the overlapping area between the air outlet 132 and the air distribution hole 21 is 0) can be adjusted.

In order to drive the gas distribution member 20 to rotate, referring to one embodiment, the electronically controlled gas valve 100 further includes a driving assembly 30, the driving assembly 30 includes a motor 31 disposed outside the valve body 10 and a main gear 32 disposed inside the gas distribution chamber 13 and driven by the motor 31, and the motor 31 drives the gas distribution member 20 to rotate through the main gear 32. The electronically controlled gas valve 100 does not require additional components to shield the main gear 32 to reduce the components of the electronically controlled gas valve 100.

In the arrangement of the motor 31, referring to one embodiment, the motor 31 is fixed on the outer side of the valve body 10 by means of screws or the like, the motor 31 is provided with a driving shaft 33, the valve body 10 is provided with a through hole for the driving shaft 33 to extend into the air distribution chamber 13, the driving shaft 33 is fixedly connected with the main gear 32, and the main gear 32 and the air distribution member 20 are in the same plane 134 under the condition of neglecting the thickness.

The gas distribution member is arranged, in one embodiment, such that the gas distribution member 20 has a disk-like structure, and the edge of the gas distribution member 20 has a gear ring 22 engaged with the main gear 32. For example, in the figure, the gear ring 22 is less than one circle along the circumferential direction of the gas distribution member 20, the two ends of the gear ring 22 are provided with limit blocks 25 arranged on the gas distribution member 20, and the limit blocks 25 are matched with the valve body 10 so as to limit the maximum rotation angle of the gas distribution member 20. The top surface of the limiting block 25 is higher than the top surface of the gear ring 22 along the radial direction of the air distributing part 20.

The air distribution member 20 abuts against the inner wall of the air distribution chamber 13 and is rotatable about a rotation axis 23. The inner wall of the air distribution chamber 13 has a plane 134 abutting against the air distribution member 20, and the air outlet 132 is disposed on the plane 134 to prevent the medium (such as natural gas) from flowing out from the position where the air distribution member 20 abuts against the inner wall of the air distribution chamber 13.

In order to urge the gas distribution member 20 against the plane 134, referring to one embodiment, the electronically controlled gas valve 100 further comprises an elastic member 14 and a partition 15, wherein the elastic member 14 and the partition 15 are both located in the gas distribution chamber 13, the elastic member 14 acts on the gas distribution member 20 to urge the gas distribution member against the plane 134, and the partition 15 is located on a side of the gas distribution member 20 opposite to the plane 134 and is capable of transmitting the force of the elastic member 14.

Wherein, two ends of the elastic element 14 are abutted against the inner wall of the gas distribution chamber 13 on one side relative to the plane 134 and one side of the partition 15 opposite to the gas distribution element 20. Preferably, the elastic member 14 is a spring; the number of the springs is two, and the outermost spring is adjacent to the outer peripheral side of the partition plate 15.

In the arrangement of the partition 15, referring to one embodiment, the partition 15 is sleeved on the rotating shaft 23, and a positioning structure 16 is arranged between the partition 15 and the inner wall of the air distribution chamber 13, and the partition 15 cannot rotate along with the rotating shaft 23 under the action of the positioning structure 16. The positioning structure 16 includes a positioning column 162 and a positioning hole, the positioning column 162 is disposed on the inner wall of the air distribution cavity 13, and the positioning hole is disposed on the partition 15 and is matched with the positioning column 162. The positioning column 162 is disposed on the inner wall of the air distribution chamber 13 through a boss 161, and the boss 161 is flush with the air distribution member 20.

The positioning posts 162 and the bosses 161 have an avoiding groove 163 for accommodating the main gear 32, and the avoiding groove 163 is open toward one side of the distribution member 20 to avoid interference with the engagement of the distribution member 20 and the main gear 32. Wherein, the positioning post 162 is substantially arc-shaped; the boss 161 is close to the gas distribution member 20, and when the limiting block 25 abuts against the boss 161, the rotation of the gas distribution member 20 can be limited.

In the arrangement of the valve body 10, referring to one embodiment, the valve body 10 includes an upper valve body 17 and a lower valve body 18, the lower valve body 18 is detachably connected to the upper valve body 17 by screws or the like, the air inlet channel 11 is disposed in the lower valve body 18, the air outlet channel 12 is disposed in the upper valve body 17, and the air distribution chamber 13 is disposed at a joint of the upper valve body 17 and the lower valve body 18. A sealing ring surrounding the air distribution cavity 13 is arranged between the upper valve body 17 and the lower valve body 18; the motor 31 is fixed on the upper valve body 17, and the air distribution piece 20 is attached to the upper valve body 17.

The lower valve body 18 is further provided with at least one normally open channel 181, and the normally open channel 181 is communicated with the air distribution chamber 13. The normally open passage 181 is always communicated with the intake passage 11. The normally open passage 181 communicates with the external pipe through a normally open connector 182. For example, in the figure, the number of the normally-open channels 181 is two, and the two normally-open channels 181 and the air outlet channel 12 are oriented in the same direction and are respectively located on the same side of the air outlet channel 12.

In the arrangement of the air distribution hole 21, referring to one embodiment, as shown in fig. 8 and 9, the air distribution hole 21 includes an air regulating section 211 extending along the circumferential direction of the air distribution member 20, the air regulating section 211 has a first edge 212 and a second edge 213 defining the radial width thereof, the first edge 212 has a plurality of arc sections 214 with different curvature radii and taking the rotation axis of the air distribution member 20 as the center, so that the overlapping area between the air outlet 132 and the air distribution hole 21 is adjusted during the rotation of the air distribution member 20, and the air outlet amount of the electronically controlled gas valve 100 is changed; the circular arc section 214 can facilitate the processing of the air adjusting section 211.

The curvatures of the circular arc sections 214 are sequentially increased along the circumferential direction of the air distribution piece 20, and the adjacent circular arc sections 214 are connected through a transition section 215 extending in the radial direction (for example, the transition section 215 is arranged linearly in the figure), so that when the air distribution piece 20 rotates, the overlapping area between the air outlet 132 and the air distribution hole 21 is continuously and stepwise increased or decreased, and thus, the adjustment of the gear is realized. The radian corresponding to each arc section 214 is 20-50 degrees; for example, the arc of arc segment 214 is 35 degrees. The number of the circular arc sections 214 is set according to the gear of the electrically controlled gas valve 100, for example, the number of the circular arc sections 214 is 8.

In this embodiment, the air distribution member 20 has an annular ring area 216 with the same radial width as the air outlet 132; wherein, the air distributing part 20 rotates a circle around its own rotation axis, and the area of the air distributing part 20 passing through the air outlet 132 is an annular area 216. The first edge 212 falls into the circular ring area 216, and the second edge 213 is offset from the circular ring area 216; there is no strict restriction on the profile of the second edge 213; for convenience of processing, the second edge 213 is an arc line segment having a uniform curvature and centered on the rotation axis of the air distribution member 20, so that the radial widths of the air adjustment segment 211 at the same arc segment 214 are equal, i.e. the overlapping areas of the air adjustment segment and the air outlet are the same.

In this embodiment, the air adjusting section 211 has a first end and a second end opposite to each other, wherein the radial width of the first end is greater than that of the second end; the air distribution hole 21 further comprises an air expansion section 217, the air expansion section 217 is located at the first end of the air regulation section 211 and is communicated with the air regulation section 211, and the overlapping area of the air distribution hole 21 at the air expansion section 217 and the air outlet 132 is the largest. For example: the radial width of the diffuser section 217 is the same as the radial width of the outlet port 132.

In this embodiment, the radian of the gas distribution member 20 corresponding to the gas regulating section 211 is 200 to 320 degrees; the radian of the air distribution piece 20 corresponding to the air diffusion section 217 is 10-30 degrees. For example, in the figure, the arc of the gas distribution member 20 corresponding to the gas regulating section 211 is 280 degrees, and the arc of the gas distribution member 20 corresponding to the gas diffusion section 217 is 20 degrees.

The specific operation of the electronically controlled gas valve 100 is explained below:

the motor 31 drives the air distribution member 20 to rotate, so as to adjust the flow rate of the medium, and the medium enters the air distribution chamber 13 through the air inlet channel 11 and then flows out of the air outlet channel 12.

As shown in fig. 10 to 12, during the rotation of the air distribution member 20:

in an initial state (for example, an initial state in the drawing), the air distribution holes 21 and the air outlets 132 are arranged in a staggered manner;

the air distribution piece 20 rotates, and the second end of the air adjusting section 211 is communicated with the air outlet 132;

the air distribution piece 20 rotates continuously, the overlapping area of the air distribution hole 21 and the air outlet 132 is gradually increased until the first end of the air regulation section 211 passes over the air outlet 132, the air expansion section 217 is communicated with the air outlet 132, the overlapping area of the air distribution hole 21 and the air outlet 132 is the largest at this time, and the outflow volume of the electric control gas valve 100 is the largest.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Features of different embodiments are shown in the same drawing, which is to be understood as also disclosing combinations of the various embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. Automatically controlled gas valve, its characterized in that includes:

2. An electrically controlled gas valve according to claim 1, characterised in that the rim of the gas distribution member has a toothed rim which meshes with the main gear.

3. An electrically controlled gas valve according to claim 1, wherein the inner wall of the gas distribution chamber has a plane against which the gas distribution member abuts, the gas outlet being provided on the plane; and an elastic part which acts on the air distribution part to enable the air distribution part to be attached to the plane is arranged in the air distribution cavity.

4. An electrically controlled gas valve according to claim 3, characterised in that the side of the gas distribution member facing away from the plane is provided with a diaphragm for transmitting the force of the resilient member.

5. The electric control gas valve as claimed in claim 4, wherein the partition is sleeved on the rotating shaft and a positioning structure is arranged between the partition and the inner wall of the gas distribution cavity.

6. An electrically controlled gas valve according to claim 5, wherein the locating structure comprises:

7. An electrically controlled gas valve according to claim 1, wherein the valve body comprises an upper valve body and a lower valve body, the gas inlet channel is disposed in the lower valve body, the gas outlet channel is disposed in the upper valve body, and the gas distribution chamber is disposed at a junction of the upper valve body and the lower valve body.

8. An electrically controlled gas valve according to claim 7, characterised in that a sealing ring surrounding the gas distribution chamber is provided between the upper and lower valve bodies.

9. An electrically controlled gas valve according to claim 7, wherein the motor is fixed to the upper valve body, and an output shaft of the motor extends into the air distribution chamber and is connected to the main gear.

10. The electrically controlled gas valve according to claim 7, wherein said lower valve body is further provided with at least one normally open channel, said normally open channel being in communication with said distribution chamber.