CN218819641U

CN218819641U - Stainless steel pressure-maintaining valve for special gas

Info

Publication number: CN218819641U
Application number: CN202223396204.0U
Authority: CN
Inventors: 杨波; 王阳
Original assignee: Kezhe Shanghai Valve Co ltd
Current assignee: Kezhe Shanghai Valve Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-04-07
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to a gaseous stainless steel of special type pressure retaining valve door, which comprises a valve body, the fixed intake pipe that is equipped with of lower terminal surface of valve body, just be located the fixed outlet duct that is equipped with in one side on the outer wall of valve body, the lower extreme of outlet duct just is located the fixed sealing washer that is equipped with on the inner wall of valve body, the inside of sealing washer is equipped with sealed piece, the up end of valve body is equipped with the valve gap, the valve gap adopts bolt fixed mounting with the valve body, the fixed bracing piece that is equipped with of up end of valve body, the fixed mounting panel that is equipped with of up end of bracing piece, the fixed cylinder that is equipped with of up end of mounting panel, the output of cylinder passes mounting panel and valve gap, and sealed piece fixed connection, and the user can make its output drive sealed piece reciprocate through control cylinder to make the device control labour saving and time saving special type gas.

Description

Stainless steel pressure-maintaining valve for special gas

Technical Field

The utility model relates to the technical field of valves, specifically be special gas stainless steel pressure maintaining valve.

Background

A stainless steel pressure retaining valve is a valve which can ensure that gas in a gas cylinder is pure and has certain pressure, and in the gas cylinder of special gas, the pressure retaining valve is the most critical part, can prevent the gas from flowing out and can control the flow rate of the gas; and the flow of the special gas cannot be monitored, so that the quantity of the released gas is difficult to control; and the special gas in the gas cylinder can have impurity inevitable, and long-term use, the impurity accumulation easily causes the jam to the inside of pressurize valve, the utility model discloses new solution has been proposed to above problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the problem that exists among the prior art, the utility model provides a gaseous stainless steel of special type pressure retaining valve to solve the technical problem who mentions in the background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gaseous stainless steel pressure retaining valve of special type, including the valve body, the fixed intake pipe that is equipped with of lower terminal surface of valve body, just be located one side fixed outlet duct that is equipped with on the outer wall of valve body, the lower extreme of outlet duct just is located the fixed sealing washer that is equipped with on the inner wall of valve body, the inside of sealing washer is equipped with sealed piece, the up end of valve body is equipped with the valve gap, the valve gap adopts bolt fixed mounting with the valve body, the fixed bracing piece that is equipped with of up end of valve body, the fixed mounting panel that is equipped with of up end of bracing piece, the fixed cylinder that is equipped with of up end of mounting panel, the output of cylinder passes mounting panel and valve gap, with sealed piece fixed connection.

Preferably, just be located the fixed connecting pipe that is equipped with in upper end on the outer wall of outlet duct, just be located the upper end on the inner wall of connecting pipe and seted up first conical surface, the upper end of first conical surface is equipped with the flowmeter, the fixed spliced pole that is equipped with of lower terminal surface of flowmeter, the lower terminal surface of spliced pole is fixed and is equipped with the second conical surface, one side of second conical surface just is located the fixed retainer plate that is equipped with on the spliced pole, the spliced pole is equipped with fastening nut with the junction of connecting pipe, is convenient for monitor the flow of special gas.

Preferably, a filter plate is arranged inside the air inlet pipe, a sliding block is fixedly arranged on the outer wall of the filter plate, the sliding block is provided with a plurality of sliding grooves which are arranged in a circumferential mode, the inner wall of the air inlet pipe is correspondingly provided with a sliding groove, and the sliding block and the sliding groove are installed in a sliding mode, so that impurities in the special gas can be conveniently filtered.

Preferably in further, all seted up the mounting hole on the slider, all correspond on the inner wall of spout and seted up threaded hole, the inside of mounting hole and threaded hole is equipped with set screw, is convenient for dismantle and install the filter.

In further preferred, the fixed rubber circle that is equipped with on the outer wall of sealed piece, the outer wall of rubber circle and the inner wall contact of sealing washer, the up end of rubber circle is fixed and is equipped with the spacing collar, the up end contact of the lower terminal surface of spacing collar and sealing washer is convenient for increase the leakproofness between sealed piece and the sealing washer.

In a further preferred embodiment, the second tapered surface is located inside the first tapered surface, and the two tapered surfaces have equal inclination, so as to increase the sealing performance between the connecting pipe and the flowmeter.

Preferably, the lower end face of the air inlet pipe is fixedly provided with an external flange, so that the device and the air bottle can be conveniently installed.

(III) advantageous effects

Compared with the prior art, the utility model provides a gaseous stainless steel of special type pressurize valve possesses following beneficial effect:

1. the sealing ring, the sealing block, the valve cover, the supporting rod, the mounting plate and the air cylinder are arranged in the utility model, so that a user can drive the sealing block to move up and down by controlling the air cylinder, so that the device can control whether special gas flows out, time and labor are saved, and the sealing block is also provided with the rubber ring and the limiting ring to increase the sealing property between the sealing block and the sealing ring and prevent gas leakage;

2. the utility model discloses in through setting up the connecting pipe, first conical surface, the flowmeter, the spliced pole, second conical surface, retainer plate and fastening nut, thereby when releasing special gas, the user can come to watch the release amount of gas through the flowmeter, in order to make things convenient for the control, and when the installation, the user can insert the inside of first conical surface with second conical surface, and screw up fastening nut, the inside of fastening nut just can support the fastening ring this moment, when the lower terminal surface of retainer plate and the up end contact of connecting pipe, the leakproofness between flowmeter and the connecting pipe is the best at this moment;

3. the utility model discloses in through setting up filter, slider, spout, mounting hole, screw hole and set screw to can filter the tiny impurity in the special gas through setting up the filter, in order to prevent that the device from taking place to block up, and the user can also come to dismantle the filter through set screw, in order to make things convenient for later stage to wash.

Drawings

FIG. 1 is a schematic view of the overall structure of a stainless steel pressure-maintaining valve for a special gas according to the present invention;

FIG. 2 is an overall sectional view of the stainless steel pressure maintaining valve for special gas of the present invention;

FIG. 3 is a partial schematic view of the area A in FIG. 2 according to the present invention;

FIG. 4 is an exploded view of the mounting of the intake tube, filter plate and set screw according to the present invention;

fig. 5 is an explosion diagram of the installation of the middle sealing block and the rubber ring of the present invention.

In the figure: 1. a valve body; 2. an air inlet pipe; 3. an air outlet pipe; 4. a seal ring; 5. a sealing block; 6. a valve cover; 7. a support bar; 8. mounting a plate; 9. a cylinder; 10. a connecting pipe; 11. a first conical surface; 12. a flow meter; 13. connecting columns; 14. a second tapered surface; 15. a stationary ring; 16. fastening a nut; 17. a filter plate; 18. a slider; 19. a chute; 20. mounting holes; 21. a threaded hole; 22. a set screw; 23. a rubber ring; 24. a limiting ring; 25. and the outer connection flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, a special gas stainless steel pressure maintaining valve includes a valve body 1, an air inlet pipe 2 is fixedly disposed on a lower end face of the valve body 1, an air outlet pipe 3 is fixedly disposed on one side of an outer wall of the valve body 1, a sealing ring 4 is fixedly disposed on an inner wall of the valve body 1 and at a lower end of the air outlet pipe 3, a sealing block 5 is disposed inside the sealing ring 4, a valve cover 6 is disposed on an upper end face of the valve body 1, the valve cover 6 and the valve body 1 are fixedly mounted by bolts, a support rod 7 is fixedly disposed on the upper end face of the valve body 1, a mounting plate 8 is fixedly disposed on an upper end face of the support rod 7, an air cylinder 9 is fixedly disposed on an upper end face of the mounting plate 8, and an output end of the air cylinder 9 penetrates through the mounting plate 8 and the valve cover 6 and is fixedly connected with the sealing block 5.

In this embodiment, the outer wall of outlet duct 3 is located the fixed connecting pipe 10 that is equipped with in upper end, first conical surface 11 has been seted up to the inner wall of connecting pipe 10 on just being located the upper end, the upper end of first conical surface 11 is equipped with flowmeter 12, the fixed spliced pole 13 that is equipped with of lower terminal surface of flowmeter 12, the fixed second conical surface 14 that is equipped with of lower terminal surface of spliced pole 13, one side of second conical surface 14 just is located spliced pole 13 and fixedly is equipped with retainer plate 15, spliced pole 13 is equipped with fastening nut 16 with the junction of connecting pipe 10, the user can install flowmeter 12 and connecting pipe 10 through fastening nut 16.

In this embodiment, the inside of intake pipe 2 is equipped with filter 17, and the fixed slider 18 that is equipped with on filter 17's the outer wall, slider 18 are provided with a plurality ofly and become the circumference shape and arrange, and spout 19 has been seted up in intake pipe 2's inner wall correspondence, and slider 18 and spout 19 slidable mounting can filter the impurity in the middle of the special gas through setting up filter 17 to prevent the problem of valve body 1 jam.

In this embodiment, all seted up mounting hole 20 on the slider 18, all correspond on the inner wall of spout 19 and seted up threaded hole 21, the inside of mounting hole 20 and threaded hole 21 is equipped with set screw 22, and the user can dismantle and install filter 17 through set screw 22.

In this embodiment, the fixed rubber ring 23 that is equipped with on the outer wall of seal block 5, the outer wall of rubber ring 23 and the inner wall contact of sealing washer 4, the fixed spacing collar 24 that is equipped with of up end of rubber ring 23, the lower terminal surface of spacing collar 24 and the up end contact of sealing washer 4 can increase the leakproofness between seal block 5 and the sealing washer 4, prevents to appear gas leakage.

In the present embodiment, the second tapered surface 14 is located inside the first tapered surface 11, and the two have the same inclination, so that the sealing performance between the flowmeter 12 and the connecting pipe 10 can be increased.

In this embodiment, the lower end face of the air inlet pipe 2 is fixedly provided with an external flange 25, and a user can connect the device with the gas cylinder through the external flange 25.

Example 2:

in summary, when using, a user can control the cylinder 9 to make the output end of the cylinder drive the sealing block 5 to move up and down to control whether the special gas flows out, which is time-saving and labor-saving, and the sealing block 5 is further provided with the rubber ring 23 and the spacing ring 24 to increase the sealing performance between the sealing block 5 and the sealing ring 4, and the user can watch the gas release amount through the flow meter 12 while releasing the special gas to facilitate handling, when installing the flow meter 12, the user can insert the second conical surface 14 on the connecting column 13 into the inside of the first conical surface 11 and tighten the fastening nut 16, at this time, the inside of the fastening nut 16 can abut against the fixing ring 15, when the lower end surface of the fixing ring 15 contacts with the upper end surface of the connecting pipe 10, the sealing performance between the flow meter 12 and the connecting pipe 10 is optimal, and the filter plate 17 is further arranged inside the air inlet pipe 2 to filter the fine impurities in the special gas, so as to prevent the device from being blocked, and the user can also detach the screw 22 to facilitate the cleaning of the filter plate.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Stainless steel pressure maintaining valve for special gas, which comprises a valve body (1), and is characterized in that: the fixed intake pipe (2) that is equipped with of lower terminal surface of valve body (1), just be located one side fixed outlet duct (3) that is equipped with on the outer wall of valve body (1), the lower extreme of outlet duct (3) just is located the inner wall of valve body (1) and fixes and is equipped with sealing washer (4), the inside of sealing washer (4) is equipped with sealed piece (5), the up end of valve body (1) is equipped with valve gap (6), bolt fixed mounting is adopted with valve body (1) in valve gap (6), the up end of valve body (1) is fixed and is equipped with bracing piece (7), the up end of bracing piece (7) is fixed and is equipped with mounting panel (8), the up end of mounting panel (8) is fixed and is equipped with cylinder (9), the output of cylinder (9) passes mounting panel (8) and valve gap (6), with sealed piece (5) fixed connection.

2. The stainless steel special gas pressure-maintaining valve according to claim 1, characterized in that: the utility model discloses a solar water heater, including outer wall of outlet duct (3), be equipped with connecting pipe (10) on just being located the upper end and fix, just be located the upper end on the inner wall of connecting pipe (10) and seted up first conical surface (11), the upper end of first conical surface (11) is equipped with flowmeter (12), the lower terminal surface of flowmeter (12) is fixed and is equipped with spliced pole (13), the lower terminal surface of spliced pole (13) is fixed and is equipped with second conical surface (14), one side of second conical surface (14) just is located spliced pole (13) and fixes and is equipped with retainer plate (15), spliced pole (13) are equipped with fastening nut (16) with the junction of connecting pipe (10).

3. The stainless steel special gas pressure-maintaining valve according to claim 1, characterized in that: the inside of intake pipe (2) is equipped with filter (17), fixed slider (18) that are equipped with on the outer wall of filter (17), slider (18) are provided with a plurality ofly and form the circumference and arrange, spout (19) have been seted up in the inner wall correspondence of intake pipe (2), slider (18) and spout (19) slidable mounting.

4. The stainless steel special gas pressure-maintaining valve according to claim 3, characterized in that: all seted up mounting hole (20) on slider (18), all correspond on the inner wall of spout (19) and seted up screw hole (21), the inside of mounting hole (20) and screw hole (21) is equipped with set screw (22).

5. The stainless steel special gas pressure-maintaining valve according to claim 1, characterized in that: the fixed rubber ring (23) that is equipped with on the outer wall of sealed piece (5), the outer wall of rubber ring (23) and the inner wall contact of sealing washer (4), the up end of rubber ring (23) is fixed and is equipped with spacing collar (24), the up end contact of the lower terminal surface of spacing collar (24) and sealing washer (4).

6. The stainless steel special gas pressure-maintaining valve according to claim 2, characterized in that: the second conical surface (14) is positioned inside the first conical surface (11), and the two conical surfaces have equal inclination.

7. The stainless steel special gas pressure-maintaining valve according to claim 1, characterized in that: and an external flange (25) is fixedly arranged on the lower end surface of the air inlet pipe (2).