CN113028176A

CN113028176A - Quick high-pressure liquid medium metal hose device that ends

Info

Publication number: CN113028176A
Application number: CN202110209131.0A
Authority: CN
Inventors: 史庭磊; 史培荣; 王轶然; 范逸; 李�杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-06-25
Anticipated expiration: 2041-02-25
Also published as: CN113028176B

Abstract

The invention discloses a metal hose device for quickly stopping a high-pressure liquid medium, which comprises a joint body, a fixed seat and a stopping part, wherein the fixed seat is fixedly connected with the joint body; the joint body comprises a first pipe diameter, a shell and a second pipe diameter, the first pipe diameter and the second pipe diameter are connected with two ends of the shell, and the inner diameter of the first pipe diameter is larger than that of the second pipe diameter; the fixing seat is annular, at least two counter bores are formed in the end face, close to the second pipe diameter, of the fixing seat, and the fixing seat stretches into the second pipe diameter side to be installed; the stopping part comprises a filter element, a first sealing ring and a second sealing ring, the filter element is provided with an opening end and a closed end, the closed end extends along the circumferential direction to form a stop ring to be matched with the fixed seat, and the first sealing ring and the second sealing ring are respectively sleeved on the filter element; the filter element is provided with a liquid inlet filter hole positioned between the first sealing ring and the second sealing ring in an annular mode, and the liquid inlet filter hole is matched with a filter screen. The device not only can realize the quick end of high-pressure liquid, can filter high-pressure liquid simultaneously, plays the dual function of ending and filtering.

Description

Quick high-pressure liquid medium metal hose device that ends

Technical Field

The invention belongs to the technical field of connecting devices, and particularly relates to a metal hose device capable of quickly stopping a high-pressure liquid medium.

Background

The metal hose joint is an intermediate part for connecting a supply device of a liquid medium and a pipeline, the liquid medium can be water, oil or alcohol and the like, the liquid medium needs to be conveyed under certain pressure during conveying, the metal hose joint and the connecting pipeline inevitably have the problem of falling off in the actual use process, particularly high-pressure oil, and the high-pressure oil in a steel plant can be rapidly combusted when encountering a red steel block or steel ingot or steel billet to form a large amount of smoke to pollute the environment; meanwhile, the burning high-pressure oil also causes equipment damage, and can cause fire disasters in serious cases, so that huge potential safety hazards exist.

In order to solve the technical problems, through search, chinese patent CN201620487827.4 discloses a hose joint with a cut-off function, which comprises a valve body with an axial through hole inside, a valve rod capable of axially moving and sealing assembled in the axial through hole, a compression spring and a valve cover which cooperate to operate the valve rod to axially reciprocate, and the like, wherein the axial through hole can be opened and closed by the inner end of the valve rod along with the axial reciprocating movement of the valve rod, thereby playing a cut-off role; chinese patent CN201920088316.9 discloses a metal hose joint capable of preventing water leakage, which comprises a joint main body, wherein a metal hose is connected to the outer surface of one side in the joint main body, corrugations are arranged on the outer surface of the periphery of the metal hose, a connecting groove is formed in the outer surface of the inner side of the joint main body, a gasket is arranged on the outer surface of the periphery of the joint main body, which is close to one side, a fixing nut is arranged on one side of the gasket, a hose jacket is wrapped on the outer surface of the other side in the joint main body, a clamping ring is arranged on the outer surface of one side of the hose jacket, a tightening nut is arranged on the outer surface; chinese patent CN201820702356.3 discloses an automatic stagnant water washing machine connects, including connecting body and stagnant water piece, the end of intaking that connects the body links to each other with the tap body, and the play water end that connects the body links to each other with the washing machine water pipe, and during the stagnant water piece activity was worn to locate and is connected the body inner chamber, the both ends of stagnant water piece were equipped with platform structure and non return device respectively, and the platform structure sets up inside connecting the body, and stagnant water piece is hollow structure, and its one side that is close to the platform structure is equipped with the water inlet.

In combination with the above patent, it can be found that the above publications are all continuous improvements to the metal hose joint, but these proposals are all to be improved, so as to improve the service performance of the metal hose joint.

Disclosure of Invention

1. Problems to be solved

Aiming at the problem that the existing metal hose joint falls off and easily causes a large amount of liquid medium splashing, the invention provides a metal hose device for quickly stopping a high-pressure liquid medium, which can realize the quick stopping of the liquid medium, thereby avoiding the phenomenon of the large amount of liquid medium splashing and eliminating potential safety hazard.

2. Technical scheme

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the invention relates to a metal hose device for rapidly stopping a high-pressure liquid medium, which comprises a joint body, a fixed seat and a stopping part; the joint body comprises a first pipe diameter, a shell and a second pipe diameter, the first pipe diameter and the second pipe diameter are connected with two ends of the shell, the inner diameter of the first pipe diameter is larger than that of the second pipe diameter, and an internal thread is arranged on the inner side of the shell;

the fixed seat is in a circular ring shape, external threads are arranged on the outer side of the circumference of the fixed seat and matched with the internal threads, at least two counter bores are formed in the end face, close to the second pipe diameter, of the fixed seat, and the fixed seat stretches into the second pipe diameter side for installation;

the cut-off part is movably arranged in the inner cavity of the fixed seat in a penetrating manner, the cut-off part comprises a filter element, a first sealing ring and a second sealing ring, the filter element is provided with an opening end and a closed end, the closed end extends along the circumferential direction to form a stop ring to be matched with the fixed seat, and the first sealing ring and the second sealing ring are respectively sleeved on the filter element; the filter core is fitted with a contraceptive ring and is equipped with a plurality of feed liquor filtration pores that are located between first sealing washer and the second sealing washer, and feed liquor filtration pore cooperation has the filter screen.

In a possible embodiment of the present invention, the end surface of the fixing seat is formed with a sealing surface, and the sealing surface is an inclined surface or an arc surface, wherein the angle of the inclined surface is 45-60 °, and the radian of the arc surface is 45-60 °.

In a possible embodiment of the present invention, the stop ring abuts against the fixed seat, and the first sealing ring is disposed in an annular space formed between the stop ring and the filter element and is matched with the sealing surface to form a closed-flow sealing position N; and the filter element is provided with an annular groove, and the annular groove is matched with the second sealing ring to form an open-flow sealing position M.

In a possible embodiment of the present invention, an end cover is fitted to the opening end, the end cover is provided with a discharge hole, a stop protrusion with threads is provided on the annular groove near the end cover, and at least two rotation holes are provided on a side end surface of the stop protrusion.

In a possible embodiment of the present invention, a liquid pressure surface is formed along the center of the end surface of the closed end, and when the metal hose connected to the joint falls off, the high-pressure liquid medium forms an impact force on the liquid pressure surface of the filter element, so that rapid stopping can be achieved.

In a possible embodiment of the present invention, when the filter element is located at the closed-flow position N, the length of the opening end of the filter element extending out of the second pipe diameter is equal to the distance between the open-flow sealing position M and the closed-flow sealing position N.

In a possible embodiment of the invention, the shape of the liquid inlet filtering holes is a waist-shaped hole, the total area of the liquid inlet filtering holes is 4-5 times of the through diameter area of the filter element, and the aperture of the filter screen is 4-100 meshes.

In a possible implementation manner of the invention, the end cover is provided with external threads which are matched with the internal threads arranged on the filter element, and the end cover can be opened, so that the inside of the filter element is convenient to clean.

In a possible embodiment of the present invention, the liquid pressure surface is a concave surface, so that when the high-pressure liquid medium impacts the liquid pressure surface, the center of the closed end of the filter element is stressed, and the liquid medium can be quickly cut off.

In a possible embodiment of the present invention, the filter element is further provided with a plurality of liquid outlet filtering holes in an encircling manner, and the liquid outlet filtering holes are located between the second sealing ring and the end cover.

During the use, with first sealing washer suit in the annular space that forms between backstop ring and the filter core, the fixing base suit is on the filter core, then with second sealing washer suit in the ring channel, backstop lug is twisted in one side of second sealing washer through sharp mouth pincers, rotatory hole cooperation, and the portion is stretched into by second pipe diameter side by the stop, fixing base and casing screw-thread fit (through sharp mouth pincers and counter bore cooperation rotation tightening).

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) the structure of the metal hose device for quickly stopping the high-pressure liquid medium utilizes the stopping part movably arranged in a penetrating way and is matched with the filter element, when the device is applied to a pipeline, the high-pressure liquid can be quickly stopped, and meanwhile, the high-pressure liquid can be filtered, so that the double functions of stopping and filtering are achieved;

(2) according to the metal hose device for quickly stopping the high-pressure liquid medium, the high-pressure liquid medium is utilized to form an impact force on the liquid pressure surface of the filter element, so that the high-pressure liquid medium can be quickly stopped;

(3) according to the metal hose device for quickly stopping the high-pressure liquid medium, the end cover is in threaded fit with the filter element, so that the metal hose device is convenient to disassemble, the joint has a filtering function, and the filter element is convenient to clean after being used for a period of time;

(4) the metal hose device for quickly stopping the high-pressure liquid medium has a simple structure and is easy to manufacture.

Drawings

FIG. 1 is a schematic perspective view of a metal hose device for rapidly shutting off a high-pressure liquid medium according to the present invention;

FIG. 2 is a cross-sectional view of the metal hose assembly for rapidly shutting off a high pressure liquid medium according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of portion B of FIG. 2;

FIG. 5 is an enlarged view of section C of FIG. 2;

FIG. 6 shows the cartridge in the open flow seal position M;

FIG. 7 shows the cartridge in a closed flow seal position N;

fig. 8 is an enlarged view of a portion D of fig. 7.

The notation in the figure is:

100. a connector body; 110. a first pipe diameter; 120. a housing; 130. a second pipe diameter;

200. a stopping part; 210. a filter element; 211. an open end; 212. a closed end; 213. a stop ring; 214. liquid inlet filtering holes; 215. filtering with a screen; 216. an annular groove; 217. pressing the noodles with liquid; 218. liquid outlet filtering holes; 220. a first seal ring; 230. an end cap; 231. a discharge hole; 240. an annular space; 250. a second seal ring; 260. a stop lug; 261. rotating the hole;

300. a fixed seat; 310. a sealing surface; 320. a counter bore;

m, open flow sealing bit; n, closed-flow sealing position.

Detailed Description

Exemplary embodiments of the present invention are described in detail below. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to describe the features and characteristics of the invention, to set forth the best mode of carrying out the invention, and to sufficiently enable one skilled in the art to practice the invention. Accordingly, the scope of the invention is to be limited only by the following claims.

Example 1

As shown in fig. 1 to 8, the quick cut-off high-pressure liquid medium metal hose device of the present embodiment includes a joint body 100, a fixing seat 300, and a cut-off portion 200. The pressure value of the high-pressure liquid is 10-20MPa, and the liquid can be water, oil or a mixture of the water and the oil (emulsion).

Further, in fig. 1, the joint body includes a first pipe diameter 110, a housing 120 and a second pipe diameter 130, the first pipe diameter 110 and the second pipe diameter 130 are connected to two ends of the housing 120, and an inner diameter of the first pipe diameter 110 is greater than an inner diameter of the second pipe diameter 130. When the device is used, the first pipe diameter 110 is connected with a liquid inlet pipe of high-pressure liquid, for example, by means of threaded connection, welding and the like, the outer side of the shell 120 is designed to be plum blossom-shaped, so that a hose joint can be conveniently held by a hand during installation, and the second pipe diameter 130 is connected with the liquid inlet pipe of the device.

In this embodiment, as shown in fig. 2, the fixing base 300 is annular, an external thread is disposed on an outer side of a circumference of the fixing base and is matched with the internal thread, three counter bores 320 are disposed on an end surface of the fixing base 300 close to the second pipe diameter 130 and are distributed according to a regular triangle, and the fixing base 300 is installed by extending from the second pipe diameter 130 side.

In this embodiment, as shown in fig. 1, 6 and 7, the stopping portion 200 is movably inserted into the inner cavity of the fixing base 300, the cut-off portion 200 comprises a filter element 210, a first sealing ring 220 and a second sealing ring 250, the first sealing ring 220 and the second sealing ring 250 are made of rubber materials, and have good corrosion resistance and oxidation resistance, the cartridge 210 has an open end 211 and a closed end 212, the closed end 212 being located on the inlet side of the high pressure liquid, the closed end 212 is extended along the circumferential direction to form a stop ring 213 to match with the fixed seat 300, the first sealing ring 220 and the second sealing ring 250 are respectively sleeved on the filter element 210 to form an open-flow sealing position M and a closed-flow sealing position N, to be precise, when the connector is closed, the stop ring 213 and the fixed seat 300 abut against each other, and the first sealing ring 220 plays a role in sealing, so that the high-pressure liquid is cut off; a plurality of liquid inlet filtering holes 214 are annularly arranged on the filter element 210 and located between the first sealing ring 220 and the second sealing ring 250, the liquid inlet filtering holes 214 are matched with a filter screen 215, the open end 211 is matched with an end cover 230, and the end cover 230 is provided with a discharge hole 231. The device of the invention can not only realize the quick cut-off of the high-pressure liquid, but also filter the high-pressure liquid, thereby having the double functions of cut-off and filtration. When the flow rate of the inlet filter hole 214 is greater than the flow rate of the outlet hole 231, the outlet filter holes 218 are formed in the filter element 210 between the sealing ring 220 and the end cap 230 in an annular manner, so that the liquid can be effectively and timely discharged.

As shown in fig. 4, a sealing surface 310 is formed on an end surface of the fixing base 300, and the sealing surface 310 is an inclined surface or an arc surface, wherein an angle of the inclined surface is 45-60 °, and an arc of the arc surface is 45-60 °. In the use process, the angle of the optimal inclined plane is 45 degrees, the radian of the cambered surface is 45 degrees, on one hand, the processing is convenient, and on the other hand, the sealing effect is the best in practice.

The device of the present invention works during the movement process, so if the second sealing ring 250 is directly sleeved on the filter element 210, the second sealing ring is easy to displace, which results in the weakening of the sealing effect, in this embodiment, the filter element 210 is provided with the annular groove 216, the annular groove 216 is matched with the second sealing ring 250 to form an open-flow sealing position M, and the second sealing ring 250 can tightly hoop the filter element 210 due to the function of the annular groove 216, and meanwhile, the second sealing ring 250 has a certain elasticity, which does not displace or misplace due to the movement of the filter element 210.

In addition, it should be noted that, in consideration of the installation of the fixing seat on one hand, and when the flow sealing position M is opened on the other hand, although the annular groove 216 can block the second sealing ring 250, the second sealing ring 250 contacts with the fixing seat 300 and reacts to the second sealing ring 250, the second sealing ring 250 still can be displaced or dislocated, as shown in fig. 8, a threaded stopping protrusion 260 is disposed on the side of the annular groove 216 close to the end cover 230, the stopping protrusion 260 is movably connected, three rotation holes 261 are disposed on the side end surface of the stopping protrusion 260, and the stopping protrusion 260 can effectively prevent the second sealing ring 250 from being displaced or dislocated.

Further, as shown in fig. 6 and 7, the filter element 210 is located at the open-flow sealing position M and the closed-flow sealing position N, respectively. During the installation, the feed liquor pipe of equipment can push up the filter core to the sealed position M that flows of opening, and after the feed liquor pipe of equipment drops, the filter core open end loses the apical force, and the blind end receives high-pressure liquid's impact force to can remove to the sealed position N that flows of shutting. The closed-flow sealing position N is a stop ring 213 abutting against the fixed seat 300, and the first sealing ring 220 is disposed in an annular space 240 formed between the stop ring 213 and the filter element 210 and is engaged with the sealing surface 310. In addition, when the filter element 210 is located at the closed-flow sealing position N, the length of the opening end 211 of the filter element 210 extending out of the second pipe diameter 130 is equal to the distance between the open-flow sealing position M and the closed-flow sealing position N.

The device of the invention is applied in liquid lines and therefore needs to meet the general requirements of liquid lines. The shape of the liquid inlet filtering holes 214 is a waist-shaped hole, the total area of the liquid inlet filtering holes 214 is 4-5 times of the drift diameter area of the filter element 210, and the aperture of the filter screen 215 is 4-100 meshes. For example, in the actual use process, the high-pressure liquid is water, and the aperture of the filter screen 215 is 4-20 meshes; when the high-pressure liquid is oil (lubricating oil, hydraulic oil, etc.), the aperture of the filter screen 215 is 20-100 meshes.

In fig. 5, a liquid pressure surface 217 is formed along the center of the end surface of the closed end 212, and when the metal hose connected to the device falls off, the high-pressure liquid medium forms an impact force on the liquid pressure surface 217 of the filter element 210, so that rapid stopping can be realized. In this embodiment, through fluid mechanics calculation, the liquid pressure surface 217 is a concave surface, and the concave surface may be a conical surface or an arc-shaped concave surface or other structural surfaces that play the same role, so that when the high-pressure liquid medium impacts the liquid pressure surface 217, the center of the closed end 212 of the filter element 210 is stressed, and the liquid medium can be quickly cut off.

The device has a filtering function, and after the device is used for a period of time, the filter element needs to be cleaned, so that the external threads arranged on the end cover 230 are matched with the internal threads arranged on the filter element 210, and the end cover 230 can be opened, so that the inside of the filter element 210 can be cleaned conveniently.

The device is applied to a steel rolling production line of a certain steel mill, the joint is arranged between the high-pressure hydraulic oil pipe and a rolling mill, the working pressure of the high-pressure hydraulic oil pipe is 16MPa, before the joint is not used, the high-pressure hydraulic oil pipe falls off due to long-time use (vibration, aging and other reasons), hydraulic oil splashes to meet a red through steel plate to be rolled, the steel plate is instantly ignited and burnt, the life safety of field operators is endangered, and meanwhile, the rolled precision equipment can be burnt. By applying the device, once the oil pipe falls off, the filter element 210 quickly stops the pipeline under the action of high-pressure oil, so that the possibility of fire caused by the falling of the oil pipe is greatly reduced, and the device is safe and reliable to use.

The above is only a preferred embodiment of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims

1. A metal hose device capable of rapidly stopping high-pressure liquid medium is characterized by comprising a joint body (100), a stopping part (200) and a fixed seat (300);

the joint body (100) comprises a first pipe diameter (110), a shell (120) and a second pipe diameter (130), the first pipe diameter (110) and the second pipe diameter (130) are connected with two ends of the shell (120), the inner diameter of the first pipe diameter (110) is larger than that of the second pipe diameter (130), and inner threads are arranged on the inner side of the shell (120);

the fixed seat (300) is annular, external threads are arranged on the outer side of the circumference of the fixed seat and matched with the internal threads, at least two counter bores (320) are formed in the end face, close to the second pipe diameter (130), of the fixed seat (300), and the fixed seat (300) stretches into the second pipe diameter (130) from the side;

the cut-off part (200) is movably arranged in the inner cavity of the fixed seat (300) in a penetrating mode, the cut-off part (200) comprises a filter element (210), a first sealing ring (220) and a second sealing ring (250), the filter element (210) is provided with an opening end (211) and a closed end (212), the closed end (212) extends along the circumferential direction to form a stop ring (213) to be matched with the fixed seat (300), and the first sealing ring (220) and the second sealing ring (250) are sleeved on the filter element (210) respectively; the filter element (210) is annularly provided with a plurality of liquid inlet filtering holes (214) between the first sealing ring (220) and the second sealing ring (250), and the liquid inlet filtering holes (214) are matched with a filter screen (215).

2. The metal hose device for rapidly cutting off the high-pressure liquid medium according to claim 1, wherein the end surface of the fixed seat (300) is formed with a sealing surface (310), the sealing surface (310) is an inclined surface or an arc surface, wherein the angle of the inclined surface is 45-60 degrees, and the radian of the arc surface is 45-60 degrees.

3. The metal hose device for rapidly cutting off high-pressure liquid medium according to claim 2, wherein the stop ring (213) abuts against the fixed seat (300), and the first sealing ring (220) is placed in an annular space (240) formed between the stop ring (213) and the filter element (210) and is matched with the sealing surface (310) to form a closed-flow sealing position N; an annular groove (216) is formed in the filter element (210), and the annular groove (216) is matched with the second sealing ring (250) to form an open-flow sealing position M.

4. The quick-cut-off high-pressure liquid medium metal hose device as claimed in claim 3, wherein the open end (211) is fitted with an end cap (230), the end cap (230) is provided with a discharge hole (231), the annular groove (216) is provided with a threaded stop lug (260) on the side close to the end cap (230), and the side end surface of the stop lug (260) is provided with at least two rotation holes (261).

5. The quick-stop high-pressure liquid medium metal hose device as claimed in claim 3, wherein the end surface of the closed end (212) is centrally formed with a liquid pressure surface (217).

6. The quick-cut-off high-pressure liquid medium metal hose device as claimed in claim 3, wherein when the filter element (210) is located at the closed-flow sealing position N, the length of the opening end (211) of the filter element (210) extending out of the second pipe diameter (130) is equal to the distance between the open-flow sealing position M and the closed-flow sealing position N.

7. The metal hose device for rapidly cutting off high-pressure liquid medium as claimed in claim 1, wherein the inlet filtering holes (214) are kidney-shaped holes, the total area of the inlet filtering holes (214) is 4-5 times of the through diameter area of the filter element (210), and the aperture of the filter screen (215) is 4-100 meshes.

8. The quick-cut-off high-pressure liquid medium metal hose device as claimed in claim 1, wherein the end cap (230) is provided with external threads for matching with internal threads provided on the filter element (210).

9. The metal hose device for rapidly shutting down a high-pressure liquid medium according to claim 3, wherein the liquid pressure surface (217) is a concave surface.

10. The quick-cut-off high-pressure liquid medium metal hose device as claimed in claim 3, wherein the filter element (210) is further provided with a plurality of liquid outlet filtering holes (218) in an encircling manner, and the liquid outlet filtering holes (218) are located between the second sealing ring (250) and the end cap (230).