CN209762349U

CN209762349U - adjustable gas overflow breaker

Info

Publication number: CN209762349U
Application number: CN201920156363.2U
Authority: CN
Inventors: 张宗熙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2019-12-10
Anticipated expiration: 2029-01-29
Also published as: TWM597366U

Abstract

The utility model provides a gas overflow resistance ware with adjustable utilizes in the passageway hole that sets up the variation in size on the rotation axis, and each this passageway hole uses the central point in its hole as the center of measurationing, and the distance of the end of runner portion is highly under this rotation axis from this center of measurationing, then the highly different purpose that reaches the increase operation sensitivity in order to adjust the thrust to the ball in the rotation axis in each this passageway hole.

Description

Adjustable gas overflow breaker

Technical Field

The utility model relates to a safety device field of gas especially relates to a gas overflow breaker with adjustable.

Background

The main function of the gas overflow breaker is to automatically close the gas passage immediately when the gas pipe is damaged and the gas leaks out, so as to ensure the safety of the gas.

As shown in FIG. 1, the gas blocking device for the present invention has a communicating chamber 1 divided into two sections having different inner diameters, and a spherical body 2 disposed in the communicating chamber 1 having a larger inner diameter. When the gas pipeline leaks, the ball 2 in the blocking device blocks the position of the valve port 3 between the two sections of the communicating chamber 1 due to the pressure difference between the gas inlet end and the gas outlet end, so as to achieve the purpose of blocking the gas pipeline. However, such a structure causes problems in practical applications because different gas equipments require different flow rates when using gas, such as: the flow rate required for the single-port gas range is about 0.2kg/hr, the flow rate required for the double-port gas range is about 0.5kg/hr, and the flow rate required for the gas water heater for bathing is about 1.5kg/hr, but the inner diameter of the blocker and the distance between the ball and the seal are fixed, so that the flow rate that can be provided is fixed. Therefore, if the flow rate of the blocker is set to 0.23kg/hr or 0.3kg/hr, the blocker is installed in the double-port furnace, which makes the double-port furnace unusable. On the contrary, if the flow rate of the blocker is set to 0.8kg/hr or 1kg/hr, the blocker is not problematic when installed in a two-port furnace, but if installed in a single-port furnace for use, the blocker will not operate even if leakage occurs at a flow rate of 0.5 kg/hr.

In other words, a single size blocker is not suitable for all gas installations. Therefore, although the blocking device of the present invention is provided with a sectionally adjustable blocking device as disclosed in taiwan utility model No. 111857, the purpose of adjusting the flow rate of the blocking device is achieved by using the switching of the flow passage holes with different sizes provided on the rotation shaft, such a structure still has disadvantages. Because the sphere will fall on the top of the column in the communicating chamber under normal condition, the distance between the sphere and the valve port is fixed, and the flow passage holes with different sizes will provide different flow rates and will have different thrust correspondingly, however, under the condition that the sphere needs to be lifted by the same distance, the sensitivity of the large flow passage hole being started will be different from that of the small flow passage hole, so there is still the disadvantage in operation.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide an adjustable gas overflow breaker with increased operation sensitivity.

In order to achieve the above objective, the utility model discloses a gas overflow breaker with adjustable includes: the body is internally provided with an upper communicating chamber and a lower communicating chamber communicated with the upper communicating chamber. The communication through the two communication chambers longitudinally penetrates the body. One side of the body is provided with an air inlet channel, the other side of the body is provided with an air outlet channel, the air inlet channel is communicated with the lower communicating chamber, and the air outlet channel is communicated with the upper communicating chamber through a connecting channel. And the sealing element is a hollow pipe body and is arranged in the lower communicating chamber of the body, one side of the sealing element is provided with an opening, and the position of the opening corresponds to the air inlet channel. An adjustment set, comprising: a rotating shaft, a ball and an adjusting button, wherein the rotating shaft is internally provided with an upper flow passage part with larger inner diameter and a lower flow passage part with smaller inner diameter, the rotating shaft is arranged through the sealing element, a plurality of flow passage holes with different sizes are arranged on the pipe body of the lower flow passage part, the height of each flow passage hole is different by taking the center point of the flow passage hole as a measuring center and the distance from the measuring center to the tail end of the lower flow passage part of the rotating shaft as the height, the flow passage holes are correspondingly communicated with the opening, the ball is arranged in the rotating shaft, a sealing sleeve piece is sleeved at the upper end of the rotating shaft and is in a tubular shape, one side of the sealing sleeve is provided with a flange, the other end is provided with a soft sleeve, the inner diameter of the soft sleeve is smaller than the outer diameter of the ball, one side of the adjusting button is provided with a column body, and the column body of the adjusting button passes through the round hole of the fixing piece. A communicating mechanism arranged at the upper end of the communicating chamber on the body, wherein the communicating mechanism comprises a button, a spring and a convex column which penetrates into the upper communicating chamber; the central point of each flow passage hole is used as a measuring center, the distance from the measuring center to the tail end of the lower flow passage part of the rotating shaft is used as the height, the flow passage holes with different heights and different apertures are selected according to the size of the connected gas appliance, and the flow passage holes can be correspondingly communicated with the opening, so that the air inlet channel, the opening and the flow passage holes are communicated with each other.

Preferably, the center points of the flow passage holes are not at the same horizontal level.

Preferably, the height of each flow passage hole is different, and the larger the shut-off flow rate is, the larger the diameter and the higher the height of the flow passage hole are.

Preferably, the sealing sleeve is tubular, and one side of the sealing sleeve is provided with a soft sleeve which is propped by the ball to form the leakage-proof valve.

The detailed structure, characteristics, assembly or use of the adjustable gas overflow breaker provided by the present invention will be described in the following detailed description of the embodiments. However, those of ordinary skill in the art should understand that the detailed description and specific examples are given for illustrating the invention and are not to be construed as limiting the scope of the invention.

Drawings

FIG. 1 is a sectional view of a conventional gas shutoff device.

Fig. 2 is an external perspective view of the rotating shaft of the present invention.

Fig. 3 is a cross-sectional view of the present invention, showing the position of the ball on the top of the column in the normal state.

Fig. 4 is a cross-sectional view of the present invention showing the position of the ball blocking the soft sleeve.

Fig. 5 is a cross-sectional view of the present invention, showing that the button of the recovery mechanism is pressed, and the convex column pushes the ball downward to leave the position of the soft sleeve.

[ notation ] to show

Communicating chamber 1 sphere 2

Valve port 3 body 10

Upper communicating chamber 11 and lower communicating chamber 12

Inlet channel 13 and outlet channel 14

Communication channel 17 seal 20

Fixing member 30 for opening 21

Circular hole 31 leakage-proof ring 32

Adjusting group 40 rotating shaft 41

Round ball 42 adjusting button 43

Upper flow path part 411 and lower flow path part 412

Flow passage hole 413 seal assembly 44

Flange 44 soft sleeve 442

cylinder 431 recanalization mechanism 50

Button 51 spring 52

Convex column 53 coupling seat 54

Detailed Description

referring to fig. 2 to 5, the adjustable gas overflow breaker of the present invention comprises:

a body 10, which is in a cross-shaped tubular shape and is internally provided with an upper communicating chamber 11 and a lower communicating chamber 12 communicated with the upper communicating chamber. The communication through the two communication chambers longitudinally penetrates the body 10. An air inlet channel 13 is disposed on one side of the body 10, and an air outlet channel 14 is disposed on the other side, wherein the air inlet channel 13 is communicated with the lower communication chamber 12. The air outlet passage 14 communicates with the upper communication chamber 11 through a communication passage 17.

A sealing member 20, which is a hollow tube, is disposed in the lower communicating chamber 12 of the body, and an opening 21 is disposed at one side of the sealing member 20 to communicate the inside and the outside of the sealing member 20. The position of the opening 21 corresponds to the intake passage 13.

A fixing member 30 having a circular hole 31, wherein the inner side wall of the circular hole 31 is provided with a leakage-proof ring 32. The fixing member 30 is disposed at a penetrating portion of the lower body communicating chamber 12 penetrating the body 10.

An adjustment group 40, comprising: a rotating shaft 41, a ball 42 and an adjusting button 43. The rotating shaft 41 has a hollow tubular shape, and has an upper flow passage 411 with a larger inner diameter and a lower flow passage 412 with a smaller inner diameter. The rotary shaft 41 is inserted into the sealing member 20, and a plurality of passage holes 413 having different sizes are formed in the pipe body of the lower passage portion 412. In the present embodiment, the rotating shaft is provided with four flow passage holes 413, but may be provided with three or two flow passage holes as required. Each of the flow passage holes 413 has a center point of the hole as a measurement center, and a distance from the measurement center to the end of the rotation axis lower flow passage part 412 is defined as a height H, as shown in fig. 2, the heights of the flow passage holes are different, that is, the center points of the flow passage holes 413 are not located at the same horizontal level, and in principle, the larger the flow rate is, the larger the diameter of the flow passage hole 413 is and the higher the height is. The cutoff flow rate as referred to herein refers to the minimum flow rate that can cause the ball to produce an over-flow cutoff effect. When the rotating shaft 41 is disposed in the sealing member 20, the flow passage holes 413 can be correspondingly communicated with the opening 21, so that the opening 21 and the flow passage holes 413 are communicated with each other. The rotating shaft lower flow passage portion 412 is provided with a guide hole 414. The ball 42 is disposed in the rotating shaft 41, and the outer diameter of the ball 42 is smaller than the inner diameter of the lower flow passage part 412 of the rotating shaft.

A sealing sleeve 44, which is disposed at the upper end of the rotating shaft 41 and is tubular, and has a flange 441 at one side and a soft sleeve 442 at the other end. The soft sleeve 442 has an inner diameter smaller than the outer diameter of the ball 42. The soft sleeve 442 can be stretched by the ball 31 to form a leak-proof valve.

One side of the adjusting button 43 is provided with a column 431, and the end of the column 431 of the adjusting button passes through the round hole 31 of the fixing member and is screwed and fixed on the rotating shaft 41. Thus, when the user rotates the adjusting knob 43, the rotating shaft 41 can be rotated to adjust the size of the flow passage 413, and the ball 42 normally falls on the top end of the column 431 and is located between the flow passage 413 and the guiding hole 414.

A communicating mechanism 50 disposed at the upper end of the communicating chamber 11, the communicating mechanism comprising: a button 51, a spring 52, a convex column 53 and a combining seat 54, the combining seat 54 is arranged on the upper communicating chamber 11, the convex column 53 passes through the combining seat 54 and penetrates into the upper communicating chamber 11 and extends to the soft sleeve 442 of the rotating shaft.

In a normal state, as shown in fig. 3, the intake passage 13 communicates with the flow passage hole 413 and the guide hole 414 through the opening 21. The gas can enter the rotating shaft 41 through the two pipes after entering from the gas inlet channel 13, and then flows out from the upper communicating chamber 11 above the rotating shaft 41 to the gas outlet channel 14 through the communicating channel 17.

When the gas flow rate is abnormal, the ball 42 is lifted upwards due to the pressure difference between the upper part and the lower part of the ball and blocks the soft sleeve 442 to form the effect of a leakage-stopping valve, so as to close the gas pipeline. When the gas pipeline is to be re-opened, the button 51 of the re-opening mechanism 50 is pressed downward, so that the convex column 53 pushes the round ball 42 away from the soft sleeve 442, and the round ball 442 falls back to the top of the cylinder 431.

Because the aperture size difference of runner hole 413 can make the flow of gas different, and because the pressure that the difference of flow caused also is different, the utility model discloses a characteristics lie in utilizing different height position promptly so that adjustable gas super flow resistance ware can reach the required flow that cuts off of the gas appliance that the cooperation was used more easily with the different flow of cooperation and pressure, make the action of cutting off more sensitive do the utility model aims at the present.

Claims

1. An adjustable gas overflow resistor, comprising:

The body is internally provided with an upper communicating chamber and a lower communicating chamber communicated with the upper communicating chamber; the two communicating chambers are communicated with each other and longitudinally penetrate through the body, one side of the body is provided with an air inlet channel, the other side of the body is provided with an air outlet channel, the air inlet channel is communicated with the lower communicating chamber, and the air outlet channel is communicated with the upper communicating chamber through a connecting channel;

The sealing element is a hollow pipe body and is arranged in the lower communicating chamber of the body, one side of the sealing element is provided with an opening, and the position of the opening corresponds to the air inlet channel;

The fixing piece is provided with a round hole and is arranged at the position of the lower communicating chamber of the body, which penetrates through the body;

An adjusting group, which comprises a rotating shaft, a ball and an adjusting button, wherein the rotating shaft is internally provided with an upper flow passage part with larger inner diameter and a lower flow passage part with smaller inner diameter, the rotating shaft penetrates through the sealing element, a pipe body of the lower flow passage part is provided with a plurality of flow passage holes with different sizes, the lower flow passage part of the rotating shaft is provided with a guide hole, the rotating shaft is internally provided with the ball, the outer diameter of the ball is smaller than the inner diameter of the lower flow passage part of the rotating shaft, one side of the adjusting button is provided with a cylinder, and the cylinder end of the adjusting button penetrates through the round hole of the fixing element to be fixed on the rotating shaft;

The sealing sleeve is arranged at the upper end of the rotating shaft and can be propped by the ball to form the effect of a leakage-proof valve;

A communicating mechanism arranged at the upper end of the communicating chamber on the body, wherein the communicating mechanism comprises a button, a spring and a convex column which penetrates into the upper communicating chamber;

The method is characterized in that:

The central point of each flow passage hole is used as a measuring center, the distance from the measuring center to the tail end of the lower flow passage part of the rotating shaft is used as the height, the flow passage holes with different heights and different apertures are selected according to the size of the connected gas appliance, and the flow passage holes can be correspondingly communicated with the opening, so that the air inlet channel, the opening and the flow passage holes are communicated with each other.

2. the adjustable gas overflow barrier of claim 1 wherein the center points of the flow passage holes are not at the same horizontal level.

3. The adjustable gas overflow barrier of claim 2 wherein each of the plurality of flow passage openings has a different height and wherein the larger the shut off flow, the larger the diameter and height of the flow passage opening.

4. the adjustable gas overflow barrier of claim 1, wherein the sealing member is tubular, and one side of the sealing member has a soft member that is stretched by the ball to form a leak-proof valve.