CN215950473U

CN215950473U - Fill dress type doublestage hydrogen energy pressure reducer

Info

Publication number: CN215950473U
Application number: CN202120073729.7U
Authority: CN
Inventors: 杨文�
Original assignee: Shanghai Haogu Industrial Co ltd
Current assignee: Shanghai Haogu Industrial Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2022-03-04
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses a filling type two-stage hydrogen energy pressure reducer which comprises an upper cover, a first-stage matrix and a second-stage matrix, wherein the first-stage matrix is in threaded connection with the second-stage matrix, the second-stage matrix is in threaded connection with the upper cover, the inner wall of the first-stage matrix is provided with an air inlet and a filling opening, the side wall of the first-stage matrix is rotatably connected with a body through a locking screw, the side wall of the body is fixedly connected with a first gasket and a third spring, the side wall of the third spring is provided with steel balls, and the side wall of the first-stage matrix is provided with an O-shaped ring seven and an O-shaped ring eight. The pressure regulator has the advantages of labor cost saving, simplicity in operation, good pressure regulating hand feeling, smoothness in pressure regulation, integral valve rod regulation of the pressure reducer, small size and accuracy of the whole device, adoption of a two-stage piston type pressure reducing structure, more accuracy in flow pressure regulation, convenience in gas filling after the gas in the steel cylinder is used up due to the fact that the filling interface is arranged on the first-stage matrix of the pressure reducer, simplicity and non-skid locking type knob switch, knurling on the circumferential reticulate pattern of the knob, attractiveness and good hand feeling.

Description

Fill dress type doublestage hydrogen energy pressure reducer

Technical Field

The utility model relates to the technical field of gas pressure reducers, in particular to a filling type two-stage hydrogen energy pressure reducer.

Background

Because the pressure in the gas cylinder is high, but the pressure required by a use point is low, a pressure reducer is required to reduce the gas with high pressure stored in the gas cylinder into low-pressure gas, and the required working pressure is ensured to be kept in a stable state all the time, the standard gas constant flow pressure reducer is a regulating device which reduces the high-pressure gas into the low-pressure gas and keeps the pressure and the flow of the output gas stable and unchanged, and the output flow can be set according to the requirement.

Among the prior art, most pressure reducers are bulky, do not take and fill the interface, and flow pressure adjusts not accurately, and it is gaseous troublesome to fill after the steel bottle gas is used up, has reduced the efficiency that fills gas, has increased operating personnel's work burden.

To this end, we propose a filling type two-stage hydrogen energy pressure reducer to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that most of pressure reducers in the prior art are large in size, do not have filling interfaces, cannot accurately adjust flow pressure, are troublesome in filling gas after gas in a steel cylinder is used up, reduce the gas filling efficiency and increase the workload of operators, and provides a filling type two-stage hydrogen energy pressure reducer.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a fill dress type doublestage hydrogen energy pressure reducer, includes upper cover, one-level matrix and second grade matrix threaded connection, second grade matrix and upper cover threaded connection, the inner wall of one-level matrix is equipped with the air inlet and fills the dress mouth, the lateral wall of one-level matrix has the body through a locking screw rotation connection, the lateral wall fixedly connected with packing ring one and spring three of body, the lateral wall of spring three is equipped with the steel ball, the lateral wall of one-level body is equipped with O type circle seven and O type circle eight, the steel ball offsets with O type circle eight, the lateral wall of second grade matrix passes through piston two and one-level matrix sliding connection, the cover is equipped with spring five on the piston two, the lower extreme lateral wall of piston two is equipped with sealed pad two, the lateral wall of piston two is equipped with O type circle five and O type circle six, the lateral wall of second grade matrix is connected with the valve rod through locking screw two, the lateral wall of valve rod has the knob through hexagonal locking screw connection in the socket, the lateral wall of valve rod is equipped with packing ring two, the lateral wall sliding connection of second grade parent has piston one, the piston one set is equipped with spring two, the lower extreme of piston one is equipped with sealed pad one, the upper end lateral wall of piston one is connected with the spring button through spring coupling, the upper end lateral wall of spring button is equipped with the pressure regulating lead screw, the lateral wall sliding connection of pressure regulating lead screw and upper cover, the upper end lateral wall of pressure regulating lead screw is equipped with cup type nut.

Preferably, the lateral wall of pressure regulating lead screw is equipped with O type circle one, the lateral wall of piston one is equipped with O type circle two and O type circle three, the lateral wall of valve rod is equipped with O type circle four.

Preferably, the surface of the knob is provided with a chamfer, and the circumference of the knob is provided with a reticulate pattern knurl.

Preferably, a filter screen is arranged at the air inlet of the primary parent body, and the filter screen is made of SS-316L stainless steel through sintering.

Preferably, the valve rod is of an integrated structure, and one end, far away from the knob, of the valve rod is conical.

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

the pressure regulator has the advantages that labor cost is saved, the operation is simple, pressure regulating hand feeling is good, pressure regulating is smooth, the integral valve rod of the pressure reducer is adjusted, the whole device is small and exquisite and accurate, a two-stage piston type pressure reducing structure is adopted, flow pressure adjustment is more accurate, a first-stage matrix of the pressure reducer is provided with a filling interface, gas can be conveniently filled after gas in a steel cylinder is used up, the locking type knob switch is simple and easy to prevent slipping, and the knob is attractive in appearance and good in hand feeling due to the fact that reticulate patterns are arranged on the circumference of the knob;

drawings

FIG. 1 is a schematic structural diagram of a charging type two-stage hydrogen energy pressure reducer provided by the utility model;

fig. 2 is a schematic structural diagram at a in fig. 1.

In the figure: the sealing device comprises a 1-cup-shaped screw cap, a 2-pressure-regulating screw rod, a 3-air outlet, a 4-spring I, a 5-piston I, a 6-spring II, a 7-stage parent body, an 8-knob, a 9-valve rod, a 10-inner-hexagonal locking screw, a 11-locking screw II, a 12-stage parent body, a 13-filtering screen, a 14-air inlet, a 15-O-ring I, a 16-upper cover, a 17-spring button, a 18-O-ring II, a 19-O-ring III, a 20-sealing gasket I, a 21-gasket II, a 22-O-ring IV, a 23-piston II, a 24-O-ring V, a 25-spring V, a 26-O-ring VI, a 27-sealing gasket II, a 28-filling port, a 29-locking screw I, a 30 body, a 31-spring III, a 32-gasket I, a 33-O-ring eight, 34 steel balls and a 35-O-ring seven.

Detailed Description

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.

Referring to fig. 1-2, a filling type two-stage hydrogen energy pressure reducer comprises an upper cover 16, a first-stage parent body 12 and a second-stage parent body 7, wherein the first-stage parent body 12 is in threaded connection with the second-stage parent body 7, the second-stage parent body 7 is in threaded connection with the upper cover 16, an air inlet 14 and a filling opening 28 are formed in the inner wall of the first-stage parent body 12, the side wall of the first-stage parent body 12 is rotatably connected with a body 30 through a locking screw I29, a gasket I32 and a spring III 31 are fixedly connected to the side wall of the body 30, steel balls 34 are arranged on the side wall of the first-stage parent body 30, an O-shaped ring seven 35 and an O-shaped ring eight 33 are arranged on the side wall of the first-stage parent body 30, the steel balls 34 abut against the O-shaped ring eight 33, the side wall of the second-stage parent body 7 is in sliding connection with the first-stage parent body 12 through a piston II 23, a spring five 25 is sleeved on the piston II 23, a sealing pad second 27 is arranged on the side wall of the lower end of the piston II 23, an O-shaped ring five 24 and an O-shaped ring six-shaped ring 26 are arranged on the side wall of the piston II 23, the side wall of the secondary parent body 7 is connected with a valve rod 9 through a locking screw II 11, the valve rod 9 is of an integrated structure, one end, far away from the knob 8, of the valve rod 9 is conical and easy to install, so that the gas sealing performance of the pressure reducer is better, the overall performance is more stable, the side wall of the valve rod 9 is connected with the knob 8 through an inner hexagonal locking screw 10, the surface of the knob 8 is provided with a chamfer, the circumference of the knob 8 is provided with a knurled roll, the knob 8 meets the ergonomic design, the knurled roll of the circumference is good in pressure regulating hand feeling, and the pressure regulation is smooth;

the side wall of the valve rod 9 is provided with a second gasket 21, the side wall of the second-stage parent body 7 is connected with a first piston 5 in a sliding manner, the first piston 5 is sleeved with a second spring 6, the lower end of the first piston 5 is provided with a first sealing gasket 20, the upper end side wall of the first piston 5 is connected with a spring button 17 through a first spring 4, the upper end side wall of the spring button 17 is provided with a pressure regulating screw rod 2, the pressure regulating screw rod 2 is connected with the side wall of an upper cover 16 in a sliding manner, the upper end side wall of the pressure regulating screw rod 2 is provided with a cup-shaped screw cap 1, the side wall of the pressure regulating screw rod 2 is provided with a first O-shaped ring 15, the side wall of the first piston 5 is provided with a second O-shaped ring 18 and a third O-shaped ring 19, the side wall of the valve rod 9 is provided with a fourth O-shaped ring 22, the side wall of the second piston 23 is provided with a fifth O-shaped ring 24 and a sixth O-shaped ring 26, so as to ensure the sealing of the gas and avoid the leakage of the gas, a filter screen 13 is arranged at the air inlet 14 of the first-stage parent body 12, and is sintered by SS-316L stainless steel, the filtering precision is higher, and the filtering efficiency is 99.9%. Avoid impurity to get into the pressure reducer inner chamber. The purity of the gas is ensured.

The utility model connects the gas inlet end of the pressure reducer to the steel cylinder by a wrench, before the gas enters the pressure reducer, the pressure reducer in the pipeline system is purged or vacuumized according to the requirement, before the gas enters the product, the knob 8 is in the complete screwing state, the valve rod 9 and the knob 8 are fixed by the hexagon socket locking screw 10, the valve rod 9 is connected with the secondary parent body 7 by the locking screw II 11, when the knob 8 is rotated, the valve rod 9 can move up and down, when the knob 8 is in the complete screwing state, the conical end at the lower end of the valve rod 9 is sealed with the sealing surface of the secondary parent body 7, the primary parent body 12 is provided with a gas inlet joint and a filling port 28, the primary parent body 12 is provided with a filter screen 13, the secondary parent body 7 is connected with the primary parent body 12, when the secondary parent body 7 is locked, the sealing gasket II 27 below the piston II 23 at the lower end of the secondary parent body 7 is sealed with the primary parent body 12, when the sampling steel cylinder valve at the inlet side is opened slowly, when gas enters the gas inlet 14, the gas acts on the second sealing gasket 27 through the small holes of the first-stage parent body 12 to separate the second sealing gasket 27 from the first-stage parent body 12, the fifth spring 25 is compressed to move the second piston 23 upwards, and the fifth O-ring 24 and the sixth O-ring 26 seal the gas to prevent the gas from leaking from the joint of the piston and the parent body;

when the knob 8 is in a completely screwed state, the conical end at the lower end of the valve rod 9 is sealed with the sealing surface of the second-stage parent body 7, gas enters a first-stage low-pressure cavity formed by the valve rod 9 and the second-stage parent body 7 when the knob 8 is rotated anticlockwise, the valve rod 9 is driven to move upwards when the knob 8 is rotated anticlockwise, the conical surface at the lower end of the valve rod 9 is separated from the sealing surface of the second-stage parent body 7 at the moment, the gas enters a second-stage low-pressure cavity of a pressure reducer through a gap between the two parts for diffusion and pressure reduction, O-shaped ring four 22 seals the gas to prevent the gas from leaking from the threaded connection part of the valve rod 9, a gasket protects the O-shaped ring four 22 from being worn, the upper cover 16 is in threaded connection with the second-stage parent body 7, when the upper cover 16 is locked, a first sealing gasket 20 below a first piston 5 in the upper cover 16 is sealed with the second-stage parent body 7, the valve rod 9 is driven to move upwards when the knob 8 is rotated anticlockwise, and the conical surface at the lower end of the valve rod 9 is separated from the sealing surface of the second-stage parent body 7 at the moment, the gas enters a second-stage low-pressure cavity of the pressure reducer through a gap between the gas and the pressure reducer for diffusion and pressure reduction, the gas acts on a first sealing gasket 20 through a small hole of a second-stage matrix 7 to separate the first sealing gasket 20 from the second-stage matrix 7, a second spring 6 is compressed to enable a first piston 5 to move upwards, meanwhile, the first piston 5 has a downward acting force from a first spring 4, the downward acting force comes from a pressure regulating screw rod 2 to drive a spring button 17 downwards to compress the first spring 4 downwards, the pressure regulating screw rod 2 can be regulated to accurately control the second-stage output pressure, and an O-shaped ring I15 seals the gas to prevent the gas from leaking from the screw rod;

when the cylinder is exhausted, the cylinder can be filled with gas from the filling port 28 of the primary parent body 12. A locking screw I29 fixes a body 30 and a gasket I32, a spring III 31 acts on a steel ball 34 to seal the steel ball 34 with an O-shaped ring eight 33, when a gas cylinder is filled, the knob 8 is required to be confirmed to be in a completely screwed state, a conical end at the lower end of a valve rod 9 is sealed with a sealing surface of a second-stage matrix 7, when gas enters a filling port 28, the gas acts on the steel ball 34, the steel ball 34 compresses the spring III 31, the steel ball 34 is separated from the O-shaped ring eight 33, the gas enters a steel cylinder, the whole pressure reducing device saves labor cost, is simple to operate, good in pressure regulating hand feeling and smooth in pressure regulation, the integral valve rod 9 of the pressure reducer is adjusted, the whole device is small and exquisite and accurate, a two-stage piston type pressure reducing structure is adopted, flow pressure regulation is more accurate, a pressure reducer matrix 12 is provided with a filling port, the gas can be conveniently filled after the gas is used up, the knob 8 is simply locked, the knob 8 is opened and closed, reticulate knurling is arranged on the circumference of the knob 8, beautiful and good hand feeling.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a fill dress type doublestage hydrogen energy pressure reducer, includes upper cover (16), one-level parent (12) and second grade parent (7), its characterized in that, one-level parent (12) and second grade parent (7) threaded connection, second grade parent (7) and upper cover (16) threaded connection, the inner wall of one-level parent (12) is equipped with air inlet (14) and fills dress mouth (28), the lateral wall of one-level parent (12) is rotated through locking screw one (29) and is connected with body (30), the lateral wall fixedly connected with packing ring one (32) and spring three (31) of body (30), the lateral wall of spring three (31) is equipped with steel ball (34), the lateral wall of one-level body (30) is equipped with O type circle seven (35) and O type circle eight (33), steel ball (34) offset with O type circle eight (33), the lateral wall of second grade parent (7) passes through piston two (23) and one-level parent (12) sliding connection, the cover is equipped with five (25) of spring on two (23) of piston, the lower extreme lateral wall of two (23) of piston is equipped with sealed two (27) of filling up, the lateral wall of two (23) of piston is equipped with five (24) of O type circle and six (26) of O type circle, the lateral wall of second grade parent (7) is connected with valve rod (9) through locking screw two (11), the lateral wall of valve rod (9) is connected with knob (8) through interior hexagonal locking screw (10), the lateral wall of valve rod (9) is equipped with packing ring two (21), the lateral wall sliding connection of second grade parent (7) has piston (5), piston (5) cover is equipped with spring two (6), the lower extreme of piston (5) is equipped with sealed pad (20), the upper end lateral wall of piston (5) is connected with spring button (17) through spring (4), the upper end lateral wall of spring button (17) is equipped with pressure regulating lead screw (2), the lateral wall sliding connection of pressure regulating lead screw (2) and upper cover (16), the upper end lateral wall of pressure regulating lead screw (2) is equipped with cup type nut (1).

2. The filling type two-stage hydrogen energy pressure reducer according to claim 1, wherein the side wall of the pressure regulating screw rod (2) is provided with a first O-ring (15), the side wall of the first piston (5) is provided with a second O-ring (18) and a third O-ring (19), and the side wall of the valve rod (9) is provided with a fourth O-ring (22).

3. The filling type two-stage hydrogen energy pressure reducer according to claim 1, wherein the surface of the knob (8) is chamfered, and the circumference of the knob (8) is knurled.

4. The filling type two-stage hydrogen energy pressure reducer according to claim 1, wherein a filter screen (13) is arranged at the gas inlet (14) of the primary parent body (12), and the filter screen (13) is made of SS-316L stainless steel by sintering.

5. The filling type two-stage hydrogen energy pressure reducer according to claim 1, wherein the valve rod (9) is of an integral structure, and one end of the valve rod (9) far away from the knob (8) is conical.