CN215445209U

CN215445209U - Coal gas pressure reducing valve easy to assemble and disassemble

Info

Publication number: CN215445209U
Application number: CN202121329015.4U
Authority: CN
Inventors: 谭文
Original assignee: Hainan Lizi Intellectual Property Operation Co ltd
Current assignee: Hainan Lizi Intellectual Property Operation Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-07
Anticipated expiration: 2031-06-15

Abstract

The utility model provides a gas pressure reducing valve easy to assemble and disassemble, which comprises a pressure reducing valve body, wherein an air inlet pipe and an air outlet pipe are connected to the pressure reducing valve body, a connecting pipe for locking the air inlet pipe into a gas supply valve of a gas tank is sleeved on the air inlet pipe, the connecting pipe is provided with external threads, a first bevel gear is axially arranged on the connecting pipe, a second bevel gear meshed with the first bevel gear is arranged on the air inlet pipe, and the second bevel gear is coaxially connected with a hand wheel. When the gas pressure reducing valve is mounted or dismounted, the hand wheel is screwed to enable the second bevel gear which is coaxially connected with the hand wheel to rotate, so that the first bevel gear which is meshed with the second bevel gear is driven to rotate, and the connecting pipe is locked into the gas supply valve of the gas tank. Through the cooperation of first bevel gear and second bevel gear, the wrist rotates at the vertical direction when changing the loading and unloading coal gas relief pressure valve among the prior art into the wrist and rotates at the horizontal direction, can pass through whole arm application of force when twisting second bevel gear, solves the inconvenient technical problem of loading and unloading of present coal gas relief pressure valve.

Description

Coal gas pressure reducing valve easy to assemble and disassemble

Technical Field

The utility model relates to the technical field of pressure reducing valves, in particular to a coal gas pressure reducing valve easy to assemble and disassemble.

Background

The gas pressure reducing valve is a structure frequently used in daily life of people, the pressure reducing valve needs to be taken down when gas is replaced for a gas tank, the locking wheel of the gas pressure reducing valve which is widely used at present is small in diameter and is positioned between the pressure reducing valve and a main valve of the gas tank, and when the locking wheel is detached or installed, a user can hardly hold the locking wheel by hand and rotate the locking wheel in the vertical direction through a wrist. Because the space of the handle ring at the upper part of the gas tank is too small, when the locking wheel is held and is required to be screwed or unscrewed, the wrist can not rotate the locking wheel greatly, and inconvenience is brought to the assembly and disassembly of the gas pressure reducing valve.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a gas pressure reducing valve easy to assemble and disassemble, which is used for solving the technical problem that the existing gas pressure reducing valve is inconvenient to assemble and disassemble.

In view of this, an easily detachable coal gas pressure reducing valve includes the pressure reducing valve body, is connected with intake pipe and outlet duct on the pressure reducing valve body, and the cover is equipped with the connecting pipe that locks the intake pipe into the gas tank air feed valve on the intake pipe, the connecting pipe is equipped with the external screw thread, the connecting pipe axial is connected with first bevel gear, be equipped with the second bevel gear with first bevel gear meshing on the intake pipe, second bevel gear coaxial coupling hand wheel.

Furthermore, the hand wheel is provided with convex or concave anti-slip lines in the circumferential direction.

Further, a first sealing ring is circumferentially arranged on the side face, facing the gas supply valve of the gas tank, of the first bevel gear.

Further, the diameter of the first bevel gear is larger than that of the second bevel gear.

Further, the second bevel gear is connected with the hand wheel through a transmission shaft.

Furthermore, the tail end of the air inlet pipe is provided with a second sealing ring.

Furthermore, the air outlet pipe is provided with a hose connecting part, and a plurality of raised circular rings are axially arranged on the hose connecting part.

Furthermore, a pressure gauge is arranged on the pressure reducing valve body.

Further, the air inlet pipe, the air outlet pipe and the pressure reducing valve body are all made of stainless steel.

According to the technical scheme, the embodiment of the utility model has the following advantages:

the utility model provides a coal gas pressure reducing valve easy to assemble and disassemble, which comprises a pressure reducing valve body, wherein an air inlet pipe and an air outlet pipe are connected to the pressure reducing valve body, a connecting pipe for locking the air inlet pipe into an air supply valve of a coal gas tank is sleeved on the air inlet pipe, the connecting pipe is provided with external threads, a first bevel gear is axially arranged on the connecting pipe, a second bevel gear meshed with the first bevel gear is arranged on the air inlet pipe, and the second bevel gear is coaxially connected with a hand wheel. When the gas pressure reducing valve is mounted or dismounted, the hand wheel is screwed to enable the second bevel gear which is coaxially connected with the hand wheel to rotate, so that the first bevel gear which is meshed with the second bevel gear is driven to rotate, and the connecting pipe is locked into the gas supply valve of the gas tank. Through the cooperation of first bevel gear and second bevel gear, the wrist rotates at the vertical direction when changing the loading and unloading coal gas relief pressure valve among the prior art into the wrist and rotates at the horizontal direction, can pass through whole arm application of force when twisting second bevel gear, solves the inconvenient technical problem of loading and unloading of present coal gas relief pressure valve.

Drawings

FIG. 1 is a schematic view of an easy-to-install gas pressure reducing valve according to an embodiment of the present invention;

wherein the reference numerals are:

1. a pressure reducing valve body; 2. an air outlet pipe; 3. an air inlet pipe; 4. a connecting pipe; 5. a first bevel gear; 6. a second bevel gear; 7. a drive shaft; 8. a hand wheel; 9. a first seal ring; 10. a second seal ring; 11. a hose connection portion; 12. a pressure gauge; 13. and (4) protecting the plate.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

Example 1

For easy understanding, please refer to fig. 1, an embodiment of the gas pressure reducing valve easy to assemble and disassemble provided by the present invention includes a pressure reducing valve body 1, an air inlet pipe 3 and an air outlet pipe 2 are connected to the pressure reducing valve body 1, a connecting pipe 4 for locking the air inlet pipe 3 into an air supply valve of a gas tank is sleeved on the air inlet pipe 3, the connecting pipe 4 is provided with an external thread, the connecting pipe 4 is axially connected with a first bevel gear 5, a second bevel gear 6 meshed with the first bevel gear 5 is arranged on the air inlet pipe 3, and the second bevel gear 6 is coaxially connected with a hand wheel 8.

It should be noted that, when the gas pressure reducing valve is installed or removed, the hand wheel 8 is screwed to rotate the second bevel gear 6 coaxially connected with the hand wheel 8, so as to drive the first bevel gear 5 engaged with the second bevel gear 6 to rotate, so that the connecting pipe 4 is locked into the gas supply valve of the gas tank. Through the cooperation of the first bevel gear 5 and the second bevel gear 6, the rotation mode of the wrist in the vertical direction during the loading and unloading of the coal gas pressure reducing valve in the prior art is changed into the rotation mode of the wrist in the horizontal direction, and the force can be applied through the whole arm when the second bevel gear 6 is screwed, so that the technical problem that the existing coal gas pressure reducing valve is inconvenient to load and unload is solved.

Example 2

For easy understanding, please refer to fig. 1, this embodiment is a further improvement of embodiment 1, and when a user uses a replacement gas tank, the user needs to detach the gas pressure reducing valve and replace the gas pressure reducing valve with a new gas tank. When the gas pressure reducing valve is assembled and disassembled, the hand wheel 8 is a part which is directly applied by a user. In order to improve the efficiency of loading and unloading the gas pressure reducing valve and avoid relative sliding between the fingers and the hand wheel 8, the hand wheel 8 is circumferentially provided with convex or concave anti-slip lines, so that the friction force between the fingers and the hand wheel 8 is improved.

Sometimes old man or the women that strength is little can't easily pull down and load on the coal gas relief pressure valve when changing the gas tank, and in this embodiment, the diameter of first bevel gear 5 is greater than the diameter of second bevel gear 6, has constituted a simple and easy derailleur structure, and first bevel gear 5 diameter is little, and second bevel gear 6 diameter is big, will become more easily when twisting hand wheel 8, can easily pull down or load on the coal gas relief pressure valve.

In order to ensure that no accident of gas leakage can occur after the gas pressure reducing valve is installed again, a first sealing ring 9 is circumferentially arranged on the side face, facing the gas supply valve of the gas tank, of the first bevel gear 5, and a second sealing ring 10 is arranged at the tail end of the gas inlet pipe 3. When the gas pressure reducing valve is locked in place, the first bevel gear 5 is in close contact with the outer ring of the gas supply valve of the gas tank, and the tail end of the gas inlet pipe 3 is in close contact with the valve port of the gas supply valve of the gas tank, so that gas leakage can be effectively prevented.

When the hand wheel 8 is screwed, a palm is required to hold the hand wheel 8, if the hand wheel 8 is closer to the first bevel gear 5 and the second bevel gear 6, fingers can be clamped by the meshing part between the first bevel gear 5 and the second bevel gear 6, in the embodiment, the second bevel gear 6 is connected with the hand wheel 8 through the transmission shaft 7 with a certain length, for example, the length of the transmission shaft 7 is 5cm, so a certain distance is kept between the second bevel gear 6 and the hand wheel 7, and the fingers are prevented from being clamped when the hand wheel 8 is screwed. In order to further prevent fingers from being clamped, a guard plate 13 is arranged on the transmission shaft 7 between the hand wheel 8 and the second bevel gear 6, a safe area is formed in the area between the guard plate 13 and the hand wheel 8, and the guard plate 13 isolates the fingers from being clamped in the safe area.

The gas outlet pipe 2 is provided with a hose connecting part 11, the hose connecting part 11 is axially provided with a plurality of raised circular rings, the friction force between the gas hose and the gas outlet pipe 2 is increased when the gas hose is connected, and the pipe is not easy to fall off. The pressure reducing valve body 1 is provided with a pressure gauge 12, and the gas allowance can be conveniently and visually known through the pressure gauge 12. In daily life, the gas tank is placed in a shade place, and in order to prevent the gas pressure reducing valve from rusting and prolong the service life, the gas inlet pipe 3, the gas outlet pipe 2 and the pressure reducing valve body 1 are all made of stainless steel.

After the user finishes cooking by using the gas tank, the switch of the gas tank needs to be closed. However, the switch of the gas tank is too close to the hand wheel 8 and has a similar shape, so that a user can mistakenly screw the hand wheel 8 to disassemble the gas pressure reducing valve to cause gas leakage, the life safety of the user is threatened, and the gas poisoning accident is caused. The air inlet pipe 3 is provided with a column 14, the column 14 is provided with a locking bolt 15, and one end of the locking bolt 15 faces the transmission shaft 7. After the gas pressure reducing valve is installed, the locking bolt 15 is rotated to lock the transmission shaft 7, so that the hand wheel 8 is in a locking state.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The coal gas pressure reducing valve easy to assemble and disassemble comprises a pressure reducing valve body, wherein an air inlet pipe and an air outlet pipe are connected to the pressure reducing valve body, and the coal gas pressure reducing valve is characterized in that a connecting pipe for locking the air inlet pipe into a gas supply valve of a coal gas tank is sleeved on the air inlet pipe, external threads are arranged on the connecting pipe, a first bevel gear is axially connected to the connecting pipe, a second bevel gear meshed with the first bevel gear is arranged on the air inlet pipe, and the second bevel gear is coaxially connected with a hand wheel.

2. The easy-to-assemble and disassemble gas pressure reducing valve as claimed in claim 1, wherein the hand wheel is circumferentially provided with convex or concave anti-slip lines.

3. The easy-to-handle gas pressure reducing valve according to claim 1, wherein the first bevel gear is provided with a first sealing ring circumferentially toward a side surface of the gas tank gas supply valve.

4. The easy-to-handle gas pressure reducing valve according to claim 1, wherein the diameter of the first bevel gear is larger than the diameter of the second bevel gear.

5. The easy-to-handle gas pressure reducing valve according to claim 1, wherein the second bevel gear is connected to the hand wheel through a transmission shaft.

6. The easy-to-handle gas pressure reducing valve according to claim 1, wherein the end of the inlet pipe is provided with a second sealing ring.

7. The easy-to-handle gas pressure reducing valve according to claim 1, wherein the outlet pipe has a hose connecting portion provided with a plurality of raised circular rings in an axial direction.

8. The easy-to-handle gas pressure reducing valve according to claim 1, wherein a pressure gauge is provided on the pressure reducing valve body.

9. The easy-to-handle gas pressure reducing valve according to claim 1, wherein the gas inlet pipe, the gas outlet pipe and the pressure reducing valve body are made of stainless steel.