CN213655840U

CN213655840U - Secondary pressure regulating pilot mechanism on steel structure gas welding pressure regulating valve

Info

Publication number: CN213655840U
Application number: CN202021953370.4U
Authority: CN
Inventors: 李沛桐
Original assignee: Sichuan Lingzhi Construction Engineering Co ltd
Current assignee: Sichuan Lingzhi Construction Engineering Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-07-09
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a second grade pressure regulating guide mechanism on steel construction gas welding air-vent valve, including the intake pipe, the outlet duct, the one-level pilot valve, coupling and second grade pilot valve, the one-level pilot valve includes the one-level valve body, the case, the valve port sleeve, right side die cover, the one-level valve clack, one-level valve port and one-level main involucra ring, valve port sleeve left side and valve port in intercommunication, the second grade pilot valve includes second grade valve body, case I, the pressure chamber, upper die cover and lower die cover, be provided with pressure regulating involucra mechanism between second grade valve body and the upper die cover, be provided with second grade involucra mechanism between; the utility model discloses a be provided with the pressure of the main involucra ring of pressure regulating involucra mechanism adjustment control pressure regulating, reach the pressure that the adjustment got into in the pressure regulating main valve, when gas pressure appears undulant, one-level main involucra ring and second grade involucra mechanism will finely tune along with gas pressure fluctuation, reach the purpose of fine setting, keep the atmospheric pressure stability in welder exit.

Description

Secondary pressure regulating pilot mechanism on steel structure gas welding pressure regulating valve

Technical Field

The utility model belongs to a multi-way valve, such as a mixing valve; a pipe fitting equipped with such a valve; the valve and the technical field of the configuration of a flow pipe specially suitable for mixed fluid, in particular to a two-stage pressure regulating pilot mechanism on a steel structure gas welding pressure regulating valve.

Background

In the construction site of the large curtain wall steel structure, collapse accidents easily occur, welding equipment and safety consciousness are also important, gas welding is generally adopted for the large curtain wall steel structure, the welding speed is low due to the limitation of a gas cylinder or a gas tank, the welding distance is large, the gas tank needs to be moved for many times, a manual safety valve is arranged on the gas cylinder or the gas tank by lengthening a gas pipe between the gas tank and the gas gun in order to improve the working efficiency, the convenience of the conventional manual safety valve and a pressure regulating valve on a gas welding gun for the welding of the steel structure still has a lot of defects, when the pressure is insufficient, the melting point temperature of the gas welding is low, the welding strength of the welding part of the steel structure is insufficient, the steel structure collapses, and in addition, under the condition that the pressure is too sufficient, the waste of combustible gas or the waste of flame retardant gas is easily caused, and the gas welding melting point temperature is high, so that the overwelding is easy to occur at the welding position of the steel structure, the toughness of the welding position is poor, and the steel structure collapses.

Disclosure of Invention

In view of this, an object of the utility model is to provide a second grade pressure regulating guide mechanism on steel construction gas welding air-vent valve, this second grade pressure regulating guide mechanism on steel construction gas welding air-vent valve is through being provided with one-level pilot valve and second grade pilot valve, be provided with the pressure of the main involucra ring of pressure regulating involucra mechanism adjustment control pressure regulating on the second grade pilot valve, reach the pressure that the adjustment got into in the pressure regulating main valve, when gas pressure appears undulant, one-level main involucra ring and second grade involucra mechanism will finely tune along with gas pressure fluctuation, reach the purpose of fine setting, the atmospheric pressure that keeps the welder exit is.

In order to achieve the purpose, the utility model relates to a second-stage pressure regulating pilot mechanism on a steel structure gas welding pressure regulating valve, which comprises an air inlet pipe communicated with an air inlet of the pressure regulating valve and an air outlet pipe communicated with a pressure regulating port of the pressure regulating valve, wherein a first-stage pilot valve, a pipe joint and a second-stage pilot valve are communicated between the air inlet pipe and the air outlet pipe, the first-stage pilot valve comprises a first-stage valve body, a valve core arranged in the first-stage valve body and communicated with the air inlet pipe and a valve port sleeve horizontally arranged and sleeved in the valve core, the right-stage valve body is connected with a right-side die cover sleeved on the valve port sleeve near the right side, the end part of the valve port sleeve is provided with a first-stage valve clack, the right-side die cover is provided with a first-stage main leather diaphragm ring at the, the second grade pilot valve includes the second grade valve body, set up in the second grade valve body and with case I, the cope match-plate pattern lid and the lower mould lid of coupling intercommunication, be provided with pressure regulating involucra mechanism between second grade valve body and the cope match-plate pattern lid, be provided with second grade involucra mechanism between second grade valve body and the lower mould lid, be provided with the pressure chamber between pressure regulating involucra mechanism and the case I and between second grade involucra mechanism and the case I, pressure chamber and outlet duct intercommunication.

Further, pressure regulating involucra mechanism is including setting up the main involucra ring of pressure regulating between second grade valve body and last mould lid, suit at the intra-annular pressure regulating valve mouth post of main involucra of pressure regulating, suit in last mould lid and with pressure regulating valve mouth post fixed connection's main involucra ring clamp plate of pressure regulating, the pressure regulating spring and the spring clamp plate of being connected with the main involucra ring clamp plate of pressure regulating, be provided with the pressure regulating screw rod that extends the top of last mould lid on the spring clamp plate.

Further, the second-stage membrane mechanism comprises a second-stage main membrane ring arranged between the second-stage valve body and the lower die cover, a valve port column sleeved in the pressure regulating main membrane ring, and a second-stage main spring arranged between the valve port column and the lower die cover.

Furthermore, a filter screen is arranged between the primary valve body and the valve core, an air inlet film is arranged at the end part of the valve core close to the left side end part of the valve port sleeve, and the air inlet film is simultaneously communicated with air inlet channels in the valve core and the valve port sleeve.

Further, the first-stage main leather diaphragm ring inner ring is fixed on the valve port sleeve through a first-stage main leather diaphragm ring right pressing plate and a first-stage main leather diaphragm ring left pressing plate, a first-stage main spring is arranged between the first-stage main leather diaphragm ring left pressing plate and the first-stage valve body, the first-stage main leather diaphragm ring right pressing plate is fixedly connected with the first-stage valve clack, and the first-stage main leather diaphragm ring left pressing plate is connected to the valve port sleeve through a sleeve nut which is sleeved on the valve port sleeve through threads.

Further, a second-stage valve port is arranged on the side wall of the valve core I, a second-stage valve clack is arranged at a position, close to the valve core I, of the valve port column, the second-stage valve clack is connected with a guide column, the guide column is sleeved in the valve port column, and a spring sleeved on the guide column is arranged in the valve port column.

Further, the other end of the valve core I is provided with an air outlet channel communicated with an air outlet pipe, and the side wall of the air outlet channel is provided with an air inlet hole communicated with a pressure cavity.

The beneficial effects of the utility model reside in that:

the utility model relates to a second grade pressure regulating guide mechanism on steel construction gas welding air-vent valve is through being provided with one-level pilot valve and second grade pilot valve, is provided with the pressure of main involucra ring of pressure regulating diaphragm mechanism adjustment control pressure regulating on the second grade pilot valve, reaches the pressure in the adjustment entering pressure regulating main valve, when gas pressure appears undulant, the pressure regulating involucra ring will finely tune along with gas pressure fluctuation, reaches the purpose of fine setting, keeps the atmospheric pressure stability in welder exit.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

fig. 1 is a schematic structural view of a two-stage pressure regulating pilot mechanism on a steel structure gas welding pressure regulating valve of the present invention;

FIG. 2 is a partial enlarged view of a primary pressure regulating pilot valve in a secondary pressure regulating pilot mechanism of the steel structure gas welding pressure regulating valve of the present invention;

description of the drawings: 1, an air inlet pipe; 2-air outlet pipe; 3-a primary pilot valve; 4-a secondary pilot valve; 5-pipe joint; 6-valve core; 7-a filter screen; 8-valve port sleeve; 9-right side mold cover; 10-primary main dermal ring; 11-primary main spring; 12-a secondary main dermal ring; 13-a valve port column; 14-a secondary main spring; 15-pressure regulating screw; 16-a pressure regulating spring; 17-pressure regulating valve port column; 18-pressure regulating main dermal membrane ring; 19-exhaust pipe joint; 20-spring pressure plate; 21-pressure regulating main skin ring pressing plate; 22-a two-stage valve body; 23-installing a mold cover; 24-air intake membrane; 25-an intake passage; 26-a first-stage main leather diaphragm ring right pressing plate; 27-a primary main dermal ring left pressure plate; 28-collet nut.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-2, the structure of the two-stage pressure regulating pilot mechanism of the pressure regulating valve for steel structure gas welding according to the present invention is schematically illustrated; the utility model relates to a second-stage pressure regulating pilot mechanism on a steel structure gas welding pressure regulating valve, which comprises an air inlet pipe 1 communicated with an air inlet of the pressure regulating valve and an air outlet pipe 2 communicated with a pressure regulating port of the pressure regulating valve, a first-stage pilot valve 3, a pipe joint 5 and a second-stage pilot valve 4 are communicated between the air inlet pipe 1 and the air outlet pipe 2, the first-stage pilot valve 3 comprises a first-stage valve body, a valve core 6 which is arranged in the first-stage valve body and communicated with the air inlet pipe 1 and a valve port sleeve 8 which is horizontally arranged and sleeved in the valve core 6, the right-side die cover 9 sleeved on the valve port sleeve 8 is connected to the right side of the first-stage valve body, the end part of the valve port sleeve 8 is provided with a first-stage valve clack, the first-stage valve port communicated with the pipe joint 5 is arranged on, the left side of the valve port sleeve 8 is communicated with the interior of the valve core 6, the secondary pilot valve 4 comprises a secondary valve body 22, a valve core I, an upper mold cover 23 and a lower mold cover, the valve core I is arranged in the secondary valve body 22 and communicated with a pipe joint, a pressure regulating leather diaphragm mechanism is arranged between the secondary valve body 22 and the upper mold cover 23, a secondary leather diaphragm mechanism is arranged between the secondary valve body 22 and the lower mold cover, pressure cavities are arranged between the pressure regulating leather diaphragm mechanism and the valve core I and between the secondary leather diaphragm mechanism and the valve core I, and the pressure cavities are communicated with the air outlet.

This embodiment is through being provided with one-level pilot valve 3 and second grade pilot valve 4, is provided with the pressure of pressure regulating involucra mechanism adjustment control pressure regulating involucra ring on second grade pilot valve 4, reaches the pressure that the adjustment got into in the pressure regulating main valve, and when gas pressure appeared undulant, one-level owner involucra ring and second grade involucra mechanism will finely tune along with gas pressure fluctuation, reach the purpose of fine setting, keep the atmospheric pressure in welder exit stable.

The preferred embodiment, pressure regulating involucra mechanism is including setting up the main involucra ring 18 of pressure regulating between two-stage valve body 22 and last mold cover 23, suit pressure regulating valve mouth post 17 in the main involucra ring 18 of pressure regulating, suit in last mold cover 23 and with pressure regulating valve mouth post 17 fixed connection's main involucra ring clamp plate 21 of pressure regulating, pressure regulating spring 16 and the spring plate 20 of being connected with pressure regulating main involucra ring clamp plate 21, be provided with the pressure regulating screw 15 that extends the top of last mold cover 23 on the spring plate 20, this embodiment drives spring plate 20 through pressure regulating screw 15 and reciprocates, and the main involucra ring 18 position of adjustment pressure regulating is favorable to the pressure of pressure regulating involucra ring adjustment gas outlet.

In a preferred embodiment, the secondary membrane mechanism comprises a secondary main membrane ring 12 arranged between a secondary valve body 22 and a lower mold cover, a valve port column 13 sleeved in the pressure regulating main membrane ring 12, and a secondary main spring 14 arranged between the valve port column 13 and the lower mold cover, when outlet pressure fluctuates, the secondary main membrane ring 12 is beneficial to finely adjusting the fluctuation of the outlet gas pressure, a sealing exhaust pipe joint 19 is arranged on the lower mold cover, and the exhaust pipe joint 19 drives the valve port column to move back and forth when the valve port column is clamped.

In a preferred embodiment, a filter screen 7 is arranged between the primary valve body 3 and the valve core 6, and an air inlet film 24 is arranged at the end part of the valve core 6 close to the left side end part of the valve port sleeve and is simultaneously communicated with an air inlet channel 25 in the valve core and the valve port sleeve.

In a preferred embodiment, the inner ring of the primary main membrane ring 10 is fixed on the valve port sleeve 8 through a primary main membrane ring right pressing plate 26 and a primary main membrane ring left pressing plate 27, a primary main spring 11 is arranged between the primary main membrane ring left pressing plate 27 and the primary valve body, the primary main membrane ring right pressing plate 26 is fixedly connected with the primary valve flap, and the primary main membrane ring left pressing plate 27 is connected to the valve port sleeve 8 through a sleeve nut 28 which is screwed on the valve port sleeve 8.

In a preferred embodiment, a secondary valve port is arranged on the side wall of the valve core I, a secondary valve flap is arranged at a position of the valve port column close to the valve core I, the secondary valve flap is connected with a guide column, the guide column is sleeved in the valve port column, and a spring sleeved on the guide column is arranged in the valve port column.

In a preferable embodiment, the other end of the valve core I is provided with an air outlet channel communicated with the air outlet pipe 2, and the side wall of the air outlet channel is provided with an air inlet hole communicated with the pressure cavity.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a second grade pressure regulating guide's mechanism on steel construction gas welding air-vent valve, includes the intake pipe with air-vent valve air inlet intercommunication and the outlet duct that communicates with air-vent valve pressure regulating mouth, its characterized in that: the primary pilot valve comprises a primary valve body, a valve core arranged in the primary valve body and communicated with the air inlet pipe, and a valve port sleeve horizontally arranged and sleeved in the valve core, the primary valve body is connected with a right side die cover sleeved on the valve port sleeve near the right side, a primary valve clack is arranged at the end part of the valve port sleeve, a primary valve port communicated with the pipe joint is arranged on the right side die cover, a primary main membrane ring is arranged at the joint of the right side die cover and the primary valve body, the primary main membrane ring is fixed on the valve port sleeve, the left side of the valve port sleeve is communicated with the valve core, the secondary pilot valve comprises a secondary valve body, a valve core I arranged in the secondary valve body and communicated with the pipe joint, an upper die cover and a lower die cover, and a membrane mechanism is arranged between the secondary valve body and the upper die cover, be provided with second grade involucra mechanism between second grade valve body and the lower mould lid, be provided with the pressure chamber between pressure regulating involucra mechanism and the case I and between second grade involucra mechanism and the case I, pressure chamber and outlet duct intercommunication.

2. The two-stage pressure regulating pilot mechanism on the pressure regulating valve for the gas welding of the steel structure according to claim 1, is characterized in that: pressure regulating involucra mechanism is including setting up the main involucra ring of pressure regulating between second grade valve body and last mould cover, suit at the intra-annular air-vent valve mouth post of main involucra of pressure regulating, suit in last mould cover and with air-vent valve mouth post fixed connection's main involucra ring clamp plate of pressure regulating, with pressure regulating spring and the spring clamp plate that main involucra ring clamp plate of pressure regulating is connected, be provided with the pressure regulating screw rod that extends the top of last mould cover on the spring clamp plate.

3. The two-stage pressure regulating pilot mechanism on the pressure regulating valve for the gas welding of the steel structure according to claim 1, is characterized in that: the secondary diaphragm mechanism comprises a secondary main diaphragm ring arranged between the secondary valve body and the lower die cover, a valve port column sleeved in the pressure regulating main diaphragm ring, and a secondary main spring arranged between the valve port column and the lower die cover.

4. The two-stage pressure regulating pilot mechanism on the pressure regulating valve for the gas welding of the steel structure according to any one of claims 1 to 3, characterized in that: a filter screen is arranged between the primary valve body and the valve core, an air inlet film is arranged at the end part of the valve core close to the left side end part of the valve port sleeve, and the air inlet film is simultaneously communicated with air inlet channels in the valve core and the valve port sleeve.

5. The two-stage pressure regulating pilot mechanism on the pressure regulating valve for the gas welding of the steel structure according to claim 4, is characterized in that: the valve comprises a valve port sleeve, a first-stage main leather film ring inner ring, a first-stage main leather film ring left pressing plate, a first-stage main spring, a first-stage main leather film ring right pressing plate, a first-stage valve clack and a first-stage main leather film ring, wherein the first-stage main leather film ring inner ring is fixed on the valve port sleeve through the first-stage main leather film ring right pressing plate and the first-stage main leather film ring left pressing plate, the first-stage main leather film ring right pressing plate is fixedly connected with the first-stage valve clack.

6. The two-stage pressure regulating pilot mechanism on the pressure regulating valve for the gas welding of the steel structure according to claim 3, characterized in that: the valve comprises a valve core I, a valve rod.

7. The two-stage pressure regulating pilot mechanism on the pressure regulating valve for the gas welding of the steel structure according to claim 6, is characterized in that: the other end of the valve core I is provided with an air outlet channel communicated with an air outlet pipe, and the side wall of the air outlet channel is provided with an air inlet hole communicated with a pressure cavity.