CN210372181U

CN210372181U - Safety valve pressure regulating device

Info

Publication number: CN210372181U
Application number: CN201921462574.5U
Authority: CN
Inventors: 徐建
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-04-21
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a relief valve pressure regulating device, including base, closed valve gap, regulation swivel nut, jack and manual force pump, the top fixed mounting of base has closed valve gap, closed valve gap's top has inserted the regulation swivel nut, closed valve gap's top fixed mounting has the jack, one side of jack has manual force pump through hydraulic pressure union coupling, the inside of adjusting the swivel nut has inserted the valve rod, the bottom of valve rod is equipped with the top end, the valve rod extends to the inside of base through closed valve gap. The utility model discloses set up jack and manual force pump, when meetting bore, high pressure when higher frictional force is huge, through manual force pump regulation jack, the jack can drive and adjust the smooth cover and move down, adjusts the smooth cover and adjusts the contact action face between the swivel nut and takes place to separate to can reach the purpose of pressure regulating fast, manual operation is laborsaving simple.

Description

Safety valve pressure regulating device

Technical Field

The utility model relates to a relief valve technical field specifically is a relief valve pressure regulating device.

Background

The safety valve is that the opening and closing piece is in normally closed state under the exogenic action, when the medium pressure rise in equipment or the pipeline exceeds the specified value, prevent pipeline or the special valve that medium pressure exceeds the specified numerical value in the equipment through discharging the medium to the system outside, the safety valve belongs to automatic valve class, mainly used boiler, pressure vessel and pipeline, control pressure does not exceed the specified value, play important guard action to personal safety and equipment operation, annotate that the safety valve must pass through pressure test and can make, need set up the pressure regulating device and carry out the pressure regulating to it in the in-process that the safety valve used.

The existing pressure regulating device has the defects that:

1. the existing pressure regulating device realizes the regulation of opening pressure by rotating a regulating screw through a hexagonal wrench, overcomes the friction force and the spring force of pressure regulation by sleeving a stress application sleeve on the basis of the wrench when high pressure is met, and is not suitable for online pressure regulation because an extension bar occupies a large space.

2. The existing pressure regulating device has huge friction force when meeting high caliber and high pressure and has large difficulty in manual operation (the adjustment cannot be completed manually under many conditions).

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safety valve pressure regulating device 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 relief valve pressure regulating device, includes base, closed valve gap, regulation swivel nut, jack and manual force pump, the top fixed mounting of base has closed valve gap, closed valve gap's top has inserted the regulation swivel nut, closed valve gap's top fixed mounting has the jack, there is manual force pump one side of jack through hydraulic pressure union coupling, the inside of adjusting the swivel nut has inserted the valve rod, the bottom of valve rod is equipped with the top end, the valve rod extends to the inside of base through closed valve gap.

Preferably, the top of jack is equipped with the butterfly seat, and the both sides fixed mounting of butterfly seat has the screw rod, screw rod and the top fixed connection who seals the valve gap, the top of jack is equipped with the piston.

Preferably, the adjusting threaded sleeve is internally provided with an adjusting light sleeve, and the top of the adjusting light sleeve is inserted with a top sleeve.

Preferably, a spring is arranged inside the closed valve cover, and spring seats are fixedly arranged at the top and the bottom of the spring.

Preferably, the inner bottom of the base is provided with a valve seat, the top of the valve seat is provided with a valve clack, and the top of the base is provided with a sealing gasket.

Preferably, the top of the manual pressure pump is provided with a pressure lever through a rotating seat, the central position of the top of the manual pressure pump is provided with a top rod, and the top end of the top rod is fixedly connected with the pressure lever.

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

1. the regulating sleeve moves downwards under the action of hydraulic pressure during pressure regulation of the safety valve pressure regulating device, the contact action surface between the regulating sleeve and the regulating threaded sleeve is separated, the acting force between the regulating threaded sleeve and the valve rod is eliminated at the moment, the position of the regulating threaded sleeve can be regulated under smaller acting force, online pressure regulation can be realized, and the occupied space is smaller.

2. This safety valve pressure regulating device has set up jack and manual force pump, when meetting bore, high pressure when frictional force is huge, through manual force pump regulation jack, the jack can drive and adjust the smooth cover downstream, adjusts the smooth cover and adjusts the contact action face between the swivel nut and takes place the separation to can reach the purpose of pressure regulating fast, manual operation is laborsaving simple.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the base structure of the present invention;

FIG. 3 is a schematic view of the structure of the closed valve cover of the present invention;

fig. 4 is a schematic view of the structure of the adjusting screw sleeve of the present invention.

In the figure: 1. a base; 101. a valve seat; 102. a valve flap; 103. a sealing gasket; 2. closing the valve cover; 201. a spring; 202. a spring seat; 3. adjusting a threaded sleeve; 301. adjusting the optical sleeve; 302. jacking and sleeving; 4. a jack; 401. a butterfly seat; 402. a piston; 403. a screw; 5. a manual pressure pump; 501. a top rod; 502. a pressure lever; 6. a valve stem; 601. a top end.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a pressure regulating device of a safety valve comprises a base 1, a closed valve cover 2, a regulating threaded sleeve 3, a jack 4 and a manual pressure pump 5, wherein the top of the base 1 is fixedly provided with the closed valve cover 2 through a bolt, the closed valve cover 2 forms a seal for the base 1, the regulating threaded sleeve 3 is inserted into the top of the closed valve cover 2, the regulating threaded sleeve 3 is used for driving a valve rod 6 to move so as to realize pressure regulation, the top of the closed valve cover 2 is fixedly provided with the jack 4 through a butterfly seat 401, a piston 402 at the bottom of the jack 4 is fixedly connected with a top sleeve 302 on the regulating threaded sleeve 3 so as to enable the jack 4 to drive a regulating optical sleeve 301 inside the regulating threaded sleeve 3 to move, one side of the jack 4 is connected with the manual pressure pump 5 through a hydraulic pipe, the jack 4 is driven by the manual pressure pump 5 to perform telescopic operation, the valve rod 6 is inserted into the regulating threaded sleeve 3, the bottom end of the valve rod 6 is, the valve stem 6 extends into the base 1 through the closure cap 2, and the top end 601 of the bottom of the valve stem 6 is against the top of the valve flap 102.

Further, the top of jack 4 is equipped with butterfly seat 401, and the both sides of butterfly seat 401 have screw 403 through helicitic texture fixed mounting, and screw 403 and the top fixed connection of closing valve lid 2, butterfly seat 401 pass through screw 403 fixed mounting at the top of closing valve lid 2, and the top of jack 4 is equipped with piston 402, and jack 4 drives through piston 402 and adjusts smooth cover 301 and reciprocate.

Further, the adjusting optical sleeve 301 is arranged inside the adjusting threaded sleeve 3, the top sleeve 302 is inserted into the top of the adjusting optical sleeve 301, the piston 402 is fixedly connected with the top sleeve 302, the piston 402 drives the adjusting optical sleeve 301 to move downwards through the top sleeve 302, the contact action surface between the adjusting optical sleeve 301 and the adjusting threaded sleeve 3 is separated, the acting force between the adjusting threaded sleeve 3 and the valve rod 6 is eliminated at the moment, the position of the adjusting threaded sleeve 3 can be adjusted under smaller acting force, and the purpose of online pressure adjustment is achieved.

Further, a spring 201 is arranged inside the closed valve cover 2, spring seats 202 are welded at the top and the bottom of the spring 201, the valve rod 6 passes through the spring seats 202 and the spring 201, the spring 201 and the spring seats 202 form a return mechanism, and when the jack 4 removes pressure, the spring 201 drives the valve rod 6 to move downwards through the spring seats 202 at the bottom of the spring 201, so that the top end 601 is pressed against the top of the valve clack 102 for sealing.

Further, the inner bottom of the base 1 is provided with a valve seat 101, the top of the valve seat 101 is provided with a valve clack 102, the top of the base 1 is provided with a sealing washer 103, the valve clack 102 achieves a sealing effect when the top end 601 is pressed against the top of the valve clack 102, when the top end 601 is separated from the top of the valve clack 102, pressure can be adjusted, and the sealing washer 103 ensures the sealing performance of the sealing valve cover 2 on the base 1.

Further, the top of the manual pressure pump 5 is provided with a pressure lever 502 through a rotating base, the central position of the top of the manual pressure pump 5 is provided with a top rod 501, the top end of the top rod 501 is fixedly connected with the pressure lever 502, and the pressure lever 502 drives the top rod 501 to press down through pressing the pressure lever 502, so that hydraulic pressure is provided for the jack 4.

The working principle is as follows: during the use, provide hydraulic pressure for jack 4 through manual force pump 5, jack 4 drives under the hydraulic pressure effect and adjusts smooth cover 301 and move down, adjusts the contact action face between smooth cover 301 and the regulation swivel nut 3 and takes place to separate, and the effort between regulation swivel nut 3 and the valve rod 6 is eliminated this moment, can adjust the adjusting swivel nut 3 position under less effort, and the overhead end 601 of valve rod 6 bottom breaks away from valve clack 102 to reach the purpose of pressure regulating.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a safety valve pressure regulating device, includes base (1), seals valve gap (2), adjusts swivel nut (3), jack (4) and manual force pump (5), its characterized in that: the top fixed mounting of base (1) has closed valve gap (2), the top of closed valve gap (2) has inserted regulation swivel nut (3), the top fixed mounting of closed valve gap (2) has jack (4), there is manual force pump (5) one side of jack (4) through hydraulic pressure union coupling, the inside of adjusting swivel nut (3) has inserted valve rod (6), the bottom of valve rod (6) is equipped with top end (601), valve rod (6) extend to the inside of base (1) through closed valve gap (2).

2. The safety valve pressure regulating device according to claim 1, wherein: the top of jack (4) is equipped with butterfly seat (401), and the both sides fixed mounting of butterfly seat (401) has screw rod (403), screw rod (403) and the top fixed connection who seals valve gap (2), the top of jack (4) is equipped with piston (402).

3. The safety valve pressure regulating device according to claim 1, wherein: an adjusting light sleeve (301) is arranged inside the adjusting screw sleeve (3), and a top sleeve (302) is inserted into the top of the adjusting light sleeve (301).

4. The safety valve pressure regulating device according to claim 1, wherein: the inside of closing valve lid (2) is equipped with spring (201), and spring holder (202) are fixed mounting to the top and the bottom of spring (201).

5. The safety valve pressure regulating device according to claim 1, wherein: the interior bottom of base (1) is equipped with valve seat (101), and the top of valve seat (101) is equipped with valve clack (102), the top of base (1) is equipped with seal ring (103).

6. The safety valve pressure regulating device according to claim 1, wherein: the top of the manual pressure pump (5) is provided with a pressure lever (502) through a rotating seat, the central position of the top of the manual pressure pump (5) is provided with a push rod (501), and the top end of the push rod (501) is fixedly connected with the pressure lever (502).