阅读说明：本技术 限压自动开关双向阀 (Pressure-limiting automatic-opening-closing two-way valve ) 是由 李守刚 于 2020-05-13 设计创作，主要内容包括：本发明公开了一种限压自动开关双向阀,包括：阀体公头和阀体母头,所述阀体公头和阀体母头通过紧帽相连接,在所述阀体公头和阀体母头之间设置有密封垫圈,在所述阀体公头和阀体母头内设置有通道,在所述通道的两端对称设置有座圈,所述座圈分别通过挡圈固定设置在阀体公头和阀体母头内,在所述座圈上均匀设置有若干与通道相互连通的流量孔,在所述座圈的中部分别滑动设置有滑杆,在所述滑杆伸至通道中部的一端分别设置有锥形环闸板,所述两个锥环形闸板连接成一体,所述两个锥形环闸板在通道内呈对称结构,在所述锥形环闸板与座圈之间的滑杆上分别套设有复位弹簧。(The invention discloses a pressure-limiting automatic switch two-way valve, which comprises: public head of valve body and the female head of valve body, public head of valve body and the female head of valve body are connected through tight cap be provided with seal ring between public head of valve body and the female head of valve body be provided with the passageway in public head of valve body and the female head of valve body the both ends symmetry of passageway is provided with the seat circle, the seat circle is respectively through the fixed setting in public head of valve body and the female head of valve body of retaining ring evenly be provided with a plurality of flow holes that communicate each other with the passageway on the seat circle the middle part of seat circle slides respectively and is provided with the slide bar extends the one end at passageway middle part and is provided with the toper ring flashboard respectively, two toper ring flashboards link into an organic whole, two toper ring flashboards are symmetrical structure in the passageway the cover is equipped with reset spring on the slide bar between toper ring flash.)

1. The pressure-limiting automatic switch two-way valve is characterized in that: the method comprises the following steps: the valve body male head (1) and the valve body female head (2) are connected through a tightening cap (3), a sealing washer (4) is arranged between the valve body male head (1) and the valve body female head (2), a channel (5) is arranged in the valve body male head (1) and the valve body female head (2), seat rings (6) are symmetrically arranged at two ends of the channel (5), the seat rings (6) are fixedly arranged in the valve body male head (1) and the valve body female head (2) through check rings (7), a plurality of flow holes (8) communicated with the channel (5) are uniformly arranged on the seat rings (6), slide rods (9) are respectively arranged in the middle of the seat rings (6) in a sliding manner, conical ring flashboards (10) are respectively arranged at one ends of the slide rods (9) extending to the middle of the channel (5), and the two annular flashboards (10) are connected into a whole, two toper ring flashboards (10) are symmetrical structure in passageway (5) it is equipped with reset spring (11) to overlap respectively on slide bar (9) between toper ring flashboard (10) and seat circle (6), the one end and the toper ring flashboard (10) of reset spring (11) offset, the other end and the seat circle (6) of reset spring (11) offset be provided with sealing washer (12) on awl annular flashboard (1) respectively be provided with on the inner wall separately of the public head of valve body (1) and the female head of valve body (2) junction respectively with awl annular flashboard (10) the conical ring seal face (13) of mutually supporting.

Technical Field

The invention relates to a petroleum machine, in particular to a pressure-limiting automatic opening and closing two-way valve.

Background

In the oil exploitation operation, the pipeline pressure needs to be observed in real time, and the risk of leakage caused by exceeding the set pressure is prevented. At present often adopt artifical observation pipeline pressure value, exceed and preset pressure then manual closing valve, it wastes time and energy, and degree of automation is low, has all brought the inconvenience for the site work, has reduced work efficiency.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a time-saving and labor-saving pressure-limiting automatic opening and closing two-way valve.

In order to solve the technical problems, the invention adopts the technical scheme that: pressure limiting automatic switching two-way valve, comprising: the valve body male head and the valve body female head are connected through a tightening cap, a sealing washer is arranged between the valve body male head and the valve body female head, channels are arranged in the valve body male head and the valve body female head, seat rings are symmetrically arranged at two ends of the channels, the seat rings are fixedly arranged in the valve body male head and the valve body female head respectively through check rings, a plurality of flow holes communicated with the channels are uniformly arranged on the seat rings, slide bars are respectively arranged in the middle parts of the seat rings in a sliding manner, conical ring flashboards are respectively arranged at one ends of the slide bars extending to the middle parts of the channels, the two conical ring flashboards are connected into a whole, the two conical ring flashboards are of a symmetrical structure in the channels, reset springs are respectively sleeved on the slide bars between the conical ring flashboards and the seat rings, one ends of the reset springs are abutted against the conical ring flashboards, the other end of the reset spring is abutted against the seat ring, the conical ring-shaped flashboards are respectively provided with a sealing ring, and the inner walls of the joints of the male head and the female head of the valve body are respectively provided with a conical ring-shaped sealing surface which is mutually matched with the conical ring-shaped flashboards.

The invention has the advantages that: above-mentioned pressure limiting automatic switch two-way valve, novel structure utilizes reset spring self pretightning force, can need not artificial intervention according to the automatic effect that realizes two-way opening and close of pressure variation in the pipeline of valve body both sides, and degree of automation is high, labour saving and time saving, and convenient to use improves work efficiency.

Drawings

Fig. 1 is a schematic structural view of the pressure limiting automatic switch two-way valve when the two-way valve is opened.

FIG. 2 is a schematic structural view of the pressure limiting automatic switch two-way valve of the present invention when closed.

In the figure: 1. the valve body comprises a male valve body head 2, a female valve body head 3, a tightening cap 4, a sealing washer 5, a channel 6, a seat ring 7, a retainer ring 8, a flow hole 9, a sliding rod 10, a conical ring flashboard 11, a return spring 12, a sealing washer 13 and a conical ring sealing surface.

Detailed Description

The details of the present invention are described below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the pressure limiting automatic opening and closing two-way valve includes: the valve body male head 1 and the valve body female head 2 are connected through a tightening cap 3, a sealing washer 4 is arranged between the valve body male head 1 and the valve body female head 2, a channel 5 is arranged in the valve body male head 1 and the valve body female head 2, seat rings 6 are symmetrically arranged at two ends of the channel 5, the seat rings 6 are respectively and fixedly arranged in the valve body male head 1 and the valve body female head 2 through check rings 7, a plurality of flow holes 8 communicated with the channel 5 are uniformly arranged on the seat rings 6, a slide rod 9 is respectively arranged in the middle of the seat rings 6 in a sliding manner, conical ring flashboards 10 are respectively arranged at one ends of the slide rods 9 extending to the middle of the channel 5, the two conical ring flashboards 10 are connected into a whole, the two conical ring flashboards 10 are in a symmetrical structure in the channel 5, and reset springs 11 are respectively sleeved on the slide rods 9 between the conical ring 10 and the seat rings 6, one end of a return spring 11 is abutted against a conical ring gate plate 10, the other end of the return spring 11 is abutted against a seat ring 6, sealing rings 12 are respectively arranged on the conical ring gate plates 10, and conical ring sealing surfaces 13 which are mutually matched with the conical ring gate plates 10 are respectively arranged on the inner walls of the joints of the valve body male head 1 and the valve body female head 2.

When in use, when the pressure of the pipeline medium is less than the preset value of the return spring 11: the medium of the pipeline passes through the channel 5 in the male head 1 and the female head 2 of the valve body and can pass through the flow hole 8 in the seat ring 6, because the pressure of the medium is less than the pretightening force of the reset spring 11, the two conical ring-shaped gate plates 10 are suspended in the middle of the channel 5 and separated from the conical ring-shaped sealing surface 13, the channel 5 is in an unblocked state, the medium flows in from one end of the channel 5 until flows out from the other end, at the moment, the valve is in an open state, and the medium can pass through the valve in both directions; when the pipe pressure is greater than the preset value of the return spring 11: the medium of the pipeline passes through the channels 5 in the male head 1 and the female head 2 of the valve body, when the medium passes through the flow hole 8 in the seat ring 6, the medium presses the conical ring gate 10 at one end with larger pressure in the channel 5 and causes the return spring 11 at the other end of the channel 5 to contract, the conical ring gate 10 moves towards the direction of the medium flow until the conical ring gate 10 abuts against the conical ring sealing surface 13 at one end with larger pressure in the channel 5, meanwhile, the sealing ring 12 on the conical ring gate 10 touches the valve body, the channel 5 is stopped, and the valve is at a closed state and cannot pass through the medium in both directions.

Above-mentioned pressure limiting automatic switch two-way valve, novel structure utilizes reset spring self pretightning force, can need not artificial intervention according to the automatic effect that realizes two-way opening and close of pressure variation in the pipeline of valve body both sides, and degree of automation is high, labour saving and time saving, and convenient to use improves work efficiency.