CN213017934U

CN213017934U - Pressure stop valve of theftproof oil

Info

Publication number: CN213017934U
Application number: CN202021332428.3U
Authority: CN
Inventors: 郭海云
Original assignee: Tianjin Binhai New Area Dagang Jingyuan Machinery Manufacturing Co ltd
Current assignee: Tianjin Binhai New Area Dagang Jingyuan Machinery Manufacturing Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-04-20
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses an oil theft prevention pressure stop valve, which comprises a valve body, wherein the upper end part of the valve body is provided with a valve rod, a limiting block is fixedly sleeved on the valve rod, the left end part and the right end part of the valve body are both connected with a connecting pipe through bolts, the inner end surface of the connecting pipe is provided with a ring groove, the bottom surface of the ring groove is in a ring shape and is uniformly provided with a limiting groove, a spring sheet is movably connected in the limiting groove, the side surface of the inner cavity of the connecting pipe is provided with a guide rod, a guide slider is movably connected on the guide rod and is fixedly arranged at the outer side of a movable seat in a ring shape, the inner end part of the connecting pipe is provided with a fixed seat, the movement accuracy of the movable seat can be ensured, the elastic sheet can also provide the rebound force of the spring sheet to push the inner end, the oil is prevented from being stolen from the connection part of the valve body and the connecting pipe by an oil thief, and the use safety of the pressure stop valve is improved.

Description

Pressure stop valve of theftproof oil

Technical Field

The utility model relates to a pressure stop valve technical field specifically is a pressure stop valve of theftproof oil.

Background

The pressure stop valve is a valve which is most widely used, is popular because the friction force between sealing surfaces is small in the opening and closing process, is durable, has small opening height, is easy to manufacture and convenient to maintain, and is suitable for medium and low pressure and high pressure. The closing principle of the stop valve is that the valve clack sealing surface is tightly attached to the valve seat sealing surface by means of the pressure of a valve rod to prevent medium from flowing, the opening and closing part of the stop valve is a plug-shaped valve clack, the sealing surface is a plane or a conical surface, and the valve clack linearly moves along the central line of the valve seat. The motion form of the valve rod (common name: a hidden rod) and the lifting rotating rod type (common name: a rising rod) stop valve refer to a valve with a closing part (a valve clack) moving along the central line of a valve seat. According to the moving form of the valve clack, the change of the valve seat through opening is in direct proportion to the stroke of the valve clack, the pressure gauge type instrument valve has the advantages of convenience in mounting and dismounting, fastening connection, fire prevention, high explosion prevention and pressure resistance, good sealing performance and the like, and is a valve in an advanced connection mode in power stations, oil refining, chemical engineering devices and instrument measurement pipelines.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure stop valve of theftproof oil to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pressure stop valve of theftproof oil, includes the valve body, the valve body upper end is equipped with the valve rod, the fixed stopper that has cup jointed on the valve rod, the tip all has the connecting pipe through bolted connection about the valve body, the terminal surface is opened there is the ring channel in the connecting pipe, the ring channel tank bottom is personally submitted the annular and is evenly opened there is the spacing groove, spacing inslot swing joint has the shell fragment, the shell fragment outer end is equipped with the oil guide plate, connecting pipe inner chamber side is equipped with the guide bar, swing joint has the direction slider on the guide bar, the direction slider is annular fixed mounting in the outside of sliding seat, the tip is equipped with the fixing base in the connecting pipe inner chamber, be equipped with the second orifice on the fixing base.

Furthermore, the outer end part of the elastic sheet is provided with a return spring, and the return spring is arranged between the elastic sheet and the connecting pipe.

Furthermore, a first throttle hole is arranged on the movable seat, the first throttle hole and the second throttle hole are staggered, and the first throttle hole and the second throttle hole are arranged around the axis array of the connecting pipe.

Furthermore, the elastic sheet is Z-shaped and is annularly arranged on the outer side of the fixed seat.

Furthermore, a sealing sleeve is arranged on the outer side of the movable seat, and the outer diameter of the sealing sleeve is equal to the inner diameter of the connecting pipe.

Furthermore, the inserting strips are made of flexible rubber, and the number of the inserting strips corresponds to that of the first throttling holes.

Furthermore, the limiting grooves are L-shaped, and the number of the limiting grooves corresponds to the number of the elastic sheets.

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

this kind of pressure stop valve of theftproof oil structural design is reasonable, convenient to use: through setting up the shell fragment, lead the oiled-plate, reset spring, the guide bar, the direction slider, sliding seat and cutting structure, under reset spring's elastic force effect, can make the shell fragment follow the outer tip inward end motion of spacing groove, thereby drive through the shell fragment, make the direction slider on the sliding seat slide on the guide bar, can enough ensure the motion accuracy of sliding seat, can pass through reset spring's effect again, provide shell fragment bounce, come to promote the sliding seat inward end, make the cutting insert in first throttle hole, plug up first orifice, prevent to steal oil person from the valve body and steal oil with the connecting pipe junction, and the setting through the stopper, under the condition that does not influence the pressure stop valve use, avoid breaking away from of valve rod and valve body, the dual function, the safety in utilization of pressure stop valve has been improved, and simple structure.

Drawings

FIG. 1 is a main sectional view of the structure of the present invention;

FIG. 2 is a sectional view taken along line A-A of the structure of the present invention;

fig. 3 is a B-B sectional view of the structure of the present invention.

In the figure: 1 valve body, 2 stopper, 3 valve rods, 4 connecting pipes, 5 ring channels, 6 shell fragment, 7 lead the oiled-plate, 8 reset spring, 9 spacing grooves, 10 fixing bases, 11 second orifices, 12 guide bars, 13 direction sliders, 14 sliding seats, 15 seal covers, 16 cutting slips, 17 first orifices.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the pressure stop valve for preventing oil theft comprises a valve body 1, wherein a valve rod 3 is arranged at the upper end of the valve body 1, the valve rod 3 is connected with the valve body 1 through threads, the valve rod 3 is arranged above the valve body 1, a limiting block 2 is fixedly sleeved on the valve rod 3, the limiting block 2 is fixedly welded on the valve rod 3, the limiting block 2 is arranged, the valve rod 3 cannot be taken down from the valve body 1, an oil thief can be prevented from stealing and taking oil from the valve rod 3, the left end and the right end of the valve body 1 are both connected with a connecting pipe 4 through bolts, the connecting pipe 4 is an oil guide pipe, an annular groove 5 is formed in the inner end surface of the connecting pipe 4, the annular groove 5 is a countersunk groove, the outer diameter of the annular groove 5 is smaller than that of the connecting pipe 4 and larger than the inner diameter of the connecting pipe 4, a limiting groove 9 is uniformly formed in the bottom of the annular groove 5 in an, and the number of the limiting grooves 9 corresponds to the number of the elastic sheets 6. The reset spring 8 is a compression spring, and the reset spring 8 is in compression in an initial state, by arranging the elastic sheet 6 and the reset spring 8, under the elastic force action of the reset spring 8, the elastic sheet 6 can move from the outer end part to the inner end part of the limit groove 9, so that the guide sliding block 13 on the movable seat 14 slides on the guide rod 12 under the driving of the elastic sheet 6, the movement accuracy of the movable seat 14 can be ensured, the elastic sheet 6 can provide the rebound force through the action of the reset spring 8, the movable seat 14 is pushed to the inner end part, the inserting strip 16 is inserted into the first orifice 17, the first orifice 17 is blocked, an oil thief is prevented from stealing oil out from the connection part of the valve body 1 and the connecting pipe 4, the use safety of the pressure stop valve is improved, the elastic sheet 6 is movably connected in the limit groove 9, the outer end part of the elastic sheet 6 is provided with the reset spring 8, the return spring 8 is arranged between the elastic sheet 6 and the connecting pipe 4. The outer end of the elastic sheet 6 is provided with an oil guide plate 7, the oil guide plate 7 is provided with an oil guide hole, the oil guide plate 7 is arranged, the flow velocity of an oil body can be reduced, when oil flows from the connecting pipe 4 to the valve body 1, the movable seat 14 cannot be driven to move from the outer end part to the inner end part, so that the insertion of the insertion strip 16 into the first throttling hole 17 is avoided, the elastic sheet 6 is Z-shaped, and the elastic sheet 6 is annular and is arranged on the outer side of the fixed seat 10. Connecting pipe 4 inner chamber side is equipped with guide bar 12, guide bar 12 fixed welding is on connecting pipe 4, the fixed welding of direction slider 13 and the movable seat 14 outside, guide bar 12 and the equal quantity of direction slider 13, swing joint has direction slider 13 on the guide bar 12, direction slider 13 is annular fixed mounting in the outside of movable seat 14, be equipped with first orifice 17 on the movable seat 14,

first orifice

17 and 11 positions of second orifice stagger each other, and first orifice 17 and two orifices 11 all around connecting pipe 4 axis array. A fixed seat 10 is arranged at the inner end part of the inner cavity of the connecting pipe 4, a second throttling hole 11 is arranged on the fixed seat 10, and a plugging strip 16 is movably inserted in the second throttling hole 11. The insert 16 is made of flexible rubber, and the number of the insert 16 corresponds to the number of the first throttle holes 17. A sealing sleeve 15 is arranged on the outer side of the movable seat 14, and the outer diameter of the sealing sleeve 15 is equal to the inner diameter of the connecting pipe 4. The pressure stop valve for preventing oil theft is characterized in that when the pressure stop valve is used, oil flows from a connecting pipe 4 to a valve body 1, at the moment, oil sequentially passes through an oil guide plate 7, a second throttling hole 11 and a first throttling hole 17 to enter the valve body 1, the oil circulation and the oil stop can be controlled by operating a valve rod 3, when an illegal oil thief steals the oil by taking off the valve body 1, a reset spring 8 recovers the elasticity, the elastic piece 6 can move from the outer end part to the inner end part of a limiting groove 9 under the action of the elasticity of the reset spring 8, so that a guide sliding block 13 on a movable seat 14 slides on a guide rod 12 under the driving of the elastic piece 6, an inserting strip 16 is quickly inserted into the first throttling hole 17, the outflow of the oil is limited, the oil theft prevention effect is achieved, when a professional dismantles the valve body 1, the existence of the elastic piece 6 is known, the elastic piece can be matched with a blocking piece to limit the ejection of the elastic piece 6 in, the operation is simple, and the structural design is reasonable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pressure stop valve of theftproof oil, includes valve body (1), its characterized in that: the improved valve is characterized in that a valve rod (3) is arranged at the upper end of the valve body (1), a limiting block (2) is fixedly sleeved on the valve rod (3), the left end and the right end of the valve body (1) are respectively connected with a connecting pipe (4) through bolts, an annular groove (5) is formed in the inner end face of the connecting pipe (4), a limiting groove (9) is formed in the groove bottom of the annular groove (5) in an annular mode and is uniformly opened, an elastic sheet (6) is movably connected in the limiting groove (9), an oil guide plate (7) is arranged at the outer end of the elastic sheet (6), a guide rod (12) is arranged on the side face of the inner cavity of the connecting pipe (4), a guide sliding block (13) is movably connected on the guide rod (12), the guide sliding block (13) is fixedly installed on the outer side of a movable seat (14), and an inserting strip (16) is movably inserted in the second throttling hole (11).

2. The pressure shut-off valve of claim 1, characterized in that: the outer end of the elastic sheet (6) is provided with a return spring (8), and the return spring (8) is arranged between the elastic sheet (6) and the connecting pipe (4).

3. The pressure shut-off valve of claim 1, characterized in that: the movable seat (14) is provided with a first throttle hole (17), the positions of the first throttle hole (17) and the second throttle hole (11) are mutually staggered, and the first throttle hole (17) and the second throttle hole (11) are arrayed around the axis of the connecting pipe (4).

4. The pressure shut-off valve of claim 1, characterized in that: the elastic sheet (6) is Z-shaped, and the elastic sheet (6) is annularly arranged on the outer side of the fixed seat (10).

5. The pressure shut-off valve of claim 2, characterized in that: a sealing sleeve (15) is arranged on the outer side of the movable seat (14), and the outer diameter of the sealing sleeve (15) is equal to the inner diameter of the connecting pipe (4).

6. The pressure shut-off valve of claim 1, characterized in that: the insert (16) is made of flexible rubber, and the number of the insert (16) corresponds to that of the first throttling holes (17).

7. The pressure shut-off valve of claim 1, characterized in that: the limiting grooves (9) are L-shaped, and the number of the limiting grooves (9) corresponds to that of the elastic sheets (6).