CN220540352U

CN220540352U - Automatic shutoff device for explosion prevention of fuel gas

Info

Publication number: CN220540352U
Application number: CN202321624266.4U
Authority: CN
Inventors: 郝帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2024-02-27
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a gas explosion-proof automatic closing device, which comprises a valve body, wherein the left side and the right side of the valve body are connected with pipe joints for being connected with a gas pipeline, a valve ball body is rotatably arranged in the valve body, the upper side and the lower side of the valve ball body are respectively connected with an upper rotating shaft and a lower rotating shaft, the upper end of the upper rotating shaft penetrates out of the valve body and is connected with an on-off control knob, a motor for driving the upper rotating shaft to rotate is arranged in the on-off control knob, an elastic clamping structure for clamping the on-off control knob is arranged on the upper side of the valve body, an outer leakage-proof sleeve for covering the joint of the gas pipeline and the pipe joint is arranged on the outer side of the valve body, effective protection can be provided for the joint of the valve body and the gas pipeline through the outer leakage-proof sleeve, and leaked gas can be concentrated in the outer leakage-proof sleeve to be matched with detection and early detection and treatment closing of a gas sensor.

Description

Automatic shutoff device for explosion prevention of fuel gas

Technical Field

The utility model relates to the field of gas equipment, in particular to gas explosion-proof automatic closing equipment.

Background

The natural gas pipeline needs emergency cutting off to prevent natural gas explosion in some time, such as gas leakage, rapid pressure drop, smoke sensor alarm and the like, the existing cutting off and closing mainly depends on an electric valve, but the gas pipelines on two sides of the electric valve are very close, if the pipeline on one side of the electric valve fires and explodes, the open fire of gas combustion or generated heat is easily conducted to the gas in the pipeline on the other side of the electric valve, so that the other side of the electric valve fires and explodes;

the natural gas explosion-proof automatic closing device with the application number 202122790417.0 comprises a gas pipeline, wherein the gas pipeline comprises a bending section and a horizontal section, the bending section is arranged in a sealed water tank, a first valve and a second valve are respectively arranged on the horizontal sections at two ends of the bending section, the horizontal section between the first valve and the bending section is communicated with the bottom of the water tank through a water inlet pipe, a third valve is arranged on the water inlet pipe, an exhaust pipe is communicated with the horizontal section between the second valve and the bending section, and a fourth valve is arranged on the exhaust pipe;

among the above-mentioned prior art, the valve junction lacks effective protection, can't early discovery to the detectability of gas leakage and handle and close.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to solve the problems and provide the gas explosion-proof automatic closing equipment.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides gas explosion-proof automatic closing equipment, which comprises a valve body, wherein the left side and the right side of the valve body are connected with pipe joints for being connected with a gas pipeline, a valve ball body is rotatably arranged in the valve body, the upper side and the lower side of the valve ball body are respectively connected with an upper rotating shaft and a lower rotating shaft, the upper end of the upper rotating shaft penetrates out of the valve body and is connected with an on-off control knob, a motor for driving the upper rotating shaft to rotate is arranged in the on-off control knob, an elastic clamping structure for clamping the on-off control knob is arranged on the upper side of the valve body, an outer leakage-proof sleeve for covering the joint of the gas pipeline and the pipe joint is arranged on the outer side of the valve body, a gas sensor is arranged on the outer side wall of the outer leakage-proof sleeve, and when the gas sensor detects that the gas concentration reaches a certain value, the gas sensor feeds back the control motor to drive the valve ball body to rotate so as to realize the disconnection and closing of the valve body.

Further, the elastic clamping structure comprises a stop ring sleeved on the outer side of the upper rotating shaft, a pressure spring is fixedly connected between the lower side of the stop ring and the upper side of the valve body, and a positioning clamping structure is arranged between the upper side of the stop ring and the lower side of the on-off control knob.

Further, the location joint structure is including fixed four reference columns that set up in stopping the ring upside, four the reference column uses the centre of a circle of stopping the ring as the equal angle evenly distributed of center, the lower side edge of break-make control knob has seted up the locating hole with four reference columns one-to-one.

Further, the inside top surface of locating hole is provided with travel switch, the upside of break-make control knob is provided with the pilot lamp, and when the reference column inserts in the locating hole, travel switch control opens the pilot lamp.

Further, the lower extreme of lower pivot wears out valve body bottom and fixedly connected with pilot pin, and the appearance of pilot pin is the diamond, the downside of outer leak protection cover is formed with the breach that is used for wearing out the pilot pin.

Further, the two sides of the stop ring are fixedly connected with the finger pressing plates.

Further, a plurality of vent holes are formed in the outer side wall, close to the gas sensor, of the outer leakage-proof sleeve.

(III) beneficial effects

Compared with the prior art, the utility model has the beneficial effects that:

1. the joint of the valve body and the gas pipeline can be effectively protected through the outer leakage-proof sleeve, leaked gas is concentrated in the outer leakage-proof sleeve, and the gas leakage can be detected and treated to be closed in an early way by matching with the gas sensor;

2. the outer leakage-proof sleeve can also play an isolating role on leaked fuel gas, a motor, an indicator lamp and the like, and the occurrence of electric spark ignition is prevented.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic diagram of the right-hand construction of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of the cross-sectional structure of FIG. 2 A-A in accordance with the present utility model;

fig. 4 is a schematic perspective view of the fig. 1 embodiment of the present utility model.

The reference numerals are explained as follows: 1. a valve body; 2. a gas pipeline; 3. an outer leak-proof sleeve; 4. a pressure spring; 5. an acupressure probe; 6. an on-off control knob; 7. a gas sensor; 8. an indicator light; 9. a travel switch; 10. positioning holes; 11. positioning columns; 12. an upper rotating shaft; 13. a lower rotating shaft; 14. an indicator needle; 15. a valve ball; 16. a pipe joint; 17. a motor; 18. a vent hole; 19. a fixed bracket; 20. and a stop ring.

Detailed Description

For the purpose of the present utility model; the technical scheme and advantages are more clear, and the technical scheme of the utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Referring to fig. 1-4, the utility model provides an explosion-proof automatic gas closing device, which comprises a valve body 1, wherein the left side and the right side of the valve body 1 are connected with a pipe joint 16 for being connected with a gas pipeline 2, a valve ball 15 is rotatably arranged in the valve body 1, the upper side and the lower side of the valve ball 15 are respectively connected with an upper rotating shaft 12 and a lower rotating shaft 13, the upper end of the upper rotating shaft 12 penetrates out of the valve body 1 and is connected with an on-off control knob 6, a motor 17 for driving the upper rotating shaft 12 to rotate is arranged in the on-off control knob 6, an elastic clamping structure for clamping the on-off control knob 6 is arranged on the upper side of the valve body 1, an outer leakage-proof sleeve 3 for covering the joint of the gas pipeline 2 and the pipe joint 16 is arranged on the outer side wall of the outer leakage-proof sleeve 3, when the gas sensor 7 detects that the gas concentration reaches a certain value, the gas sensor 7 feeds back the motor 17 to control the valve ball 15 to rotate so as to realize the opening and closing of the valve body 1.

The elastic clamping structure comprises a stop ring 20 sleeved on the outer side of the upper rotating shaft 12, a compression spring 4 is fixedly connected between the lower side of the stop ring 20 and the upper side of the valve body 1, and a positioning clamping structure is arranged between the upper side of the stop ring 20 and the lower side of the on-off control knob 6. The positioning clamping structure comprises four positioning columns 11 fixedly arranged on the upper side of the stop ring 20, the four positioning columns 11 are uniformly distributed at equal angles by taking the center of the stop ring 20 as the center, and positioning holes 10 which are in one-to-one correspondence with the four positioning columns 11 are formed in the lower side edge of the on-off control knob 6. Finger plates 5 are fixedly connected to both sides of the stop ring 20.

As shown in fig. 3 of the specification, a travel switch 9 is arranged on the inner top surface of the positioning hole 10, an indicator lamp 8 is arranged on the upper side of the on-off control knob 6, and when the positioning column 11 is inserted into the positioning hole 10, the travel switch 9 controls the indicator lamp 8 to be turned on. Through the specific structural design, the indication lamp 8 and the travel switch 9 are matched to realize whether the elastic clamping structure is clamped in place or not.

The lower end of the lower rotating shaft 13 penetrates out of the bottom of the valve body 1 and is fixedly connected with an indicating needle 14, the indicating needle 14 is diamond-shaped in appearance, and a notch for penetrating out of the indicating needle 14 is formed on the lower side of the outer leakage-proof sleeve 3. In practical application, the indication needle 14 can be used for indicating the on-off state of the valve ball 15.

The outer side wall of the outer leakage-proof sleeve 3, which is close to the gas sensor 7, is provided with a plurality of vent holes 18. In practical application, the vent hole 18 can realize the communication between the inside and the outside of the outer leakage preventing sleeve 3, so that even when the outside of the outer leakage preventing sleeve 3 is leaked with fuel gas, the gas sensor 7 can detect the fuel gas, thereby realizing the sealing of the valve body 1.

With the structure, when the gas pipeline sealing device is used, the outer leakage-proof sleeve 3 is sleeved on the outer side of the valve body 1, the upper side of the valve body 1 is provided with an upper opening for penetrating out the on-off control knob 6, the edge of the upper opening is in sealing connection with the outer side wall of the valve body 1, the bottom side of the outer leakage-proof sleeve 3 is provided with a notch for penetrating out the indicating needle 14, the edge of the notch is in sealing connection with the bottom side wall of the valve body 1, the gas pipeline 2 penetrates through the openings at two ends of the outer leakage-proof sleeve 3 and is connected with the pipe joint 16, and the edges of the openings at two ends of the outer leakage-proof sleeve 3 and the outer side wall of the gas pipeline 2 are in sealing connection;

when gas leakage occurs at the joint of the gas pipeline 2 and the pipe joint 16, the gas generated by leakage is concentrated in the outer leakage-proof sleeve 3, so that the concentration of the gas in the outer leakage-proof sleeve 3 is quickly increased, the gas sensor 7 can realize detection at the beginning of less gas leakage, the feedback control motor 17 can realize closing of the valve ball 15, the pilot plate 5 can also drive the stop ring 20 to press downwards, the positioning column 11 and the positioning hole 10 are separated from each other, the upper rotating shaft 12 and the valve ball 15 can be driven to rotate through the rotation of the on-off control knob 6, the on-off adjustment of the valve body 1 is realized, and the pilot pin 14 can realize indication of on-off of the valve ball 15.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An explosion-proof automatic closing equipment of gas, its characterized in that: including valve body (1), the left and right sides of valve body (1) is connected with coupling (16) that are used for being connected with gas pipeline (2) each other, the inside rotation of valve body (1) is provided with valve spheroid (15), the upside of valve spheroid (15) is connected with pivot (12) and lower pivot (13) respectively, go up the upper end of pivot (12) and wear out valve body (1) and be connected with on-off control knob (6), be provided with in on-off control knob (6) and be used for driving pivot (12) pivoted motor (17), the upside of valve body (1) is provided with and is used for realizing carrying out the elasticity card structure of block to on-off control knob (6), the outside of valve body (1) is provided with and is used for carrying out outer leak protection cover (3) of shroud to gas pipeline (2) and coupling (16) junction, is provided with gas sensor (7) on the lateral wall of outer leak protection cover (3), when gas sensor (7) detects that gas concentration reaches a definite value, gas sensor (7) feedback control motor (17) drive valve body (15) and realize closing to rotate to the valve body (1).

2. The gas explosion-proof automatic closing apparatus according to claim 1, wherein: the elastic clamping structure comprises a stop ring (20) sleeved on the outer side of the upper rotating shaft (12), a pressure spring (4) is fixedly connected between the lower side of the stop ring (20) and the upper side of the valve body (1), and a positioning clamping structure is arranged between the upper side of the stop ring (20) and the lower side of the on-off control knob (6).

3. The gas explosion-proof automatic closing apparatus according to claim 2, wherein: the positioning clamping structure comprises four positioning columns (11) fixedly arranged on the upper side of a stop ring (20), the four positioning columns (11) are uniformly distributed at equal angles by taking the center of the stop ring (20) as the center, and positioning holes (10) corresponding to the four positioning columns (11) one by one are formed in the lower side edge of the on-off control knob (6).

4. A gas explosion proof automatic shut off device according to claim 3, wherein: the inside top surface of locating hole (10) is provided with travel switch (9), the upside of break-make control knob (6) is provided with pilot lamp (8), when reference column (11) inserts in locating hole (10), travel switch (9) control open pilot lamp (8).

5. The gas explosion-proof automatic closing apparatus according to claim 1, wherein: the lower end of the lower rotating shaft (13) penetrates out of the bottom of the valve body (1) and is fixedly connected with an indicating needle (14), the indicating needle (14) is diamond-shaped, and a notch for penetrating out of the indicating needle (14) is formed in the lower side of the outer leakage-proof sleeve (3).

6. The gas explosion-proof automatic closing apparatus according to claim 2, wherein: and finger pressure plates (5) are fixedly connected to two sides of the stop ring (20).

7. The gas explosion-proof automatic closing apparatus according to claim 1, wherein: the outer side wall of the outer leakage-proof sleeve (3) close to the gas sensor (7) is provided with a plurality of vent holes (18).