CN213900002U

CN213900002U - Check valve with protection function

Info

Publication number: CN213900002U
Application number: CN202022212570.0U
Authority: CN
Inventors: 周俊男
Original assignee: Shenyang Heyuan Seiko Technology Co ltd
Current assignee: Shenyang Heyuan Seiko Technology Co ltd
Priority date: 2020-10-06
Filing date: 2020-10-06
Publication date: 2021-08-06
Anticipated expiration: 2030-10-06

Abstract

The utility model discloses a check valve with safeguard function, including rotatory handle, protective housing, disk seat and second ring flange, the one end welding of second ring flange has the protective housing, the welding of the outside one end of protective housing has first ring flange, the welding of the other end of disk seat has the second ring flange, the welding of the top of second ring flange has the top ring flange, the top welding of top ring flange has the supporting shoe, swing joint has first bolt on the supporting shoe, swing joint has the screw thread round pin in supporting shoe and the first bolt, and the screw thread round pin is supporting shoe and first bolt reciprocal anchorage. The utility model discloses when liquid enters into inside the valve, impact protective cover plate through fluidic impact force, protective cover plate will be backed down, and protective cover plate will drive the connecting rod and rotate around the regulating spindle, and when liquid does not flow, protective cover plate can because the effect of gravity will descend, then protective cover plate will close to prevent the purpose of liquid reflux.

Description

Check valve with protection function

Technical Field

The utility model relates to a technical field is made to the valve, specifically is a check valve with safeguard function.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). However, the prior check valve with a guard function has many problems or disadvantages in that the valve is opened when the inlet pressure is greater than the sum of the weight of the valve flap and the flow resistance thereof:

firstly, the existing check valve with the protection function easily causes fluid backflow, so that the using effect of the valve is poor;

secondly, the existing check valve with the protection function does not have the manual closing function, so that the protection effect of the valve is poor;

third, the existing check valve polish rod with a protection function has no protection function, and may cause the polish rod to bend or shift during a long time use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve with safeguard function is in order to solve the valve that proposes among the above-mentioned background art and lead to backward flow easily, do not have the function of manual closing and the polished rod takes place crooked or skew when using for a long time.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a check valve with safeguard function, includes rotatory handle, protective housing, disk seat and second ring flange, the one end welding of second ring flange has the protective housing, the outside one end welding of protective housing has first ring flange, the other end welding of disk seat has the second ring flange, the top welding of second ring flange has the top ring flange, the top welding of top ring flange has the supporting shoe, swing joint has first bolt on the supporting shoe, swing joint has the screw thread round pin in supporting shoe and the first bolt, and the screw thread round pin is supporting shoe and first bolt reciprocal anchorage.

Preferably, the top welding of top ring flange has the mount, and the outside swing joint of first bolt has the nut, and the bottom that is close to the nut on the first bolt is provided with the clamp plate, and the clamp plate is pressed at the inside top of mount, and the clamp plate has played the purpose of protection.

Preferably, the welding of mount top has a supporting bench, and the inside swing joint of supporting bench has the threaded rod, and the top fixed mounting of threaded rod has rotatory handle, and rotatory handle has played rotatory purpose.

Preferably, a packing cavity is formed in the top of the interior of the valve seat, limiting plates are arranged in the valve seat and the packing cavity, and a baffle is movably arranged in the limiting plates and plays a role in controlling liquid.

Preferably, one end of the threaded rod is connected with a polished rod, the bottom of the polished rod is movably connected with one end of the baffle, and the polished rod plays a role in transferring work.

Preferably, the inside swing joint of guard box has the regulating spindle, and swing joint has the connecting rod on the regulating spindle, and the one end of connecting rod is provided with the second bolt, and the other end of second bolt is connected with protective cover plate, and protective cover plate has played the purpose that prevents the liquid backward flow.

Compared with the prior art, the beneficial effects of the utility model are that: this check valve with safeguard function is rational in infrastructure, has following advantage:

(1) through being provided with the regulating spindle, the connecting rod, protective cover plate and second bolt have realized the purpose that prevents the fluid backward flow, current device leads to the liquid backward flow easily, therefore, during the use, when liquid enters into the valve inside, impact protective cover plate through fluidic impact force, protective cover plate will be backed down, protective cover plate will drive the connecting rod and rotate around the regulating spindle, when liquid does not flow, protective cover plate can descend owing to the effect of gravity, then protective cover plate will close, thereby prevent the purpose of liquid backward flow.

(2) The valve has the purpose of manual closing through being provided with rotatory handle, threaded rod, first bolt, polished rod and baffle, and current device does not have the manual function of closing, consequently, during the use, when the valve has some damages, through rotating rotatory handle, rotatory handle will drive the threaded rod and rotate, and the threaded rod will drive the polished rod and rotate, and the polished rod will drive the baffle and reciprocate to realized that the device carries out manual control's purpose.

(3) Through being provided with the mount, the thread round pin, the supporting shoe, the clamp plate, nut and first bolt have realized the purpose that can protect the polished rod, current valve does not protect the polished rod, thereby it can lead to the polished rod to take place crooked and skew to lead to using for a long time, therefore, during the use, through the thread round pin supporting shoe and clamp plate reciprocal anchorage, then insert first bolt through the clamp plate, insert the central point of mount and clamp plate through the polished rod and put, thereby mount and clamp plate reciprocal protection, thereby realized carrying out the purpose of protecting to the polished rod, prevent that the polished rod is crooked or skew.

Drawings

Fig. 1 is a front view of the external structure of the present invention;

fig. 2 is a schematic top view of the external structure of the present invention;

fig. 3 is a schematic diagram of the external structure of the utility model as seen from the right side;

fig. 4 is a schematic front view of the cross-sectional structure of the present invention;

FIG. 5 is a schematic diagram of a right side view cross-sectional structure of the present invention;

in the figure: 1. rotating the handle; 2. a threaded rod; 3. a support table; 4. a fixed mount; 5. a threaded pin; 6. a first flange plate; 7. a protective box; 8. a valve seat; 9. a second flange plate; 10. a top flange plate; 11. a support block; 12. pressing a plate; 13. a nut; 14. a first bolt; 15. a polish rod; 16. an adjustment shaft; 17. a connecting rod; 18. a protective cover plate; 19. a second bolt; 20. a baffle plate; 21. a packing cavity; 22. and a limiting plate.

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. 1-5, the present invention provides an embodiment: a check valve with a protection function comprises a rotary handle 1, a protective box 7, a valve seat 8 and a second flange plate 9, wherein the protective box 7 is welded at one end of the second flange plate 9, a first flange plate 6 is welded at one end outside the protective box 7, the second flange plate 9 is welded at the other end of the valve seat 8, a top flange plate 10 is welded at the top of the second flange plate 9, a supporting block 11 is welded at the top of the top flange plate 10, a first bolt 14 is movably connected onto the supporting block 11, a threaded pin 5 is movably connected between the supporting block 11 and the first bolt 14, and the supporting block 11 and the first bolt 14 are mutually fixed through the threaded pin 5;

the top of the top flange plate 10 is welded with a fixed frame 4, the outside of the first bolt 14 is movably connected with a nut 13, a pressing plate 12 is arranged on the first bolt 14 close to the bottom of the nut 13, and the pressing plate 12 is pressed on the top inside the fixed frame 4;

a supporting table 3 is welded at the top of the fixed frame 4, a threaded rod 2 is movably connected inside the supporting table 3, and a rotating handle 1 is fixedly installed at the top of the threaded rod 2;

when the device is used, the supporting block 11 and the pressing plate 12 are mutually fixed through the threaded pin 5, then the pressing plate 12 is inserted into the first bolt 14, and the polished rod 15 is inserted into the central positions of the fixed frame 4 and the pressing plate 12, so that the fixed frame 4 and the pressing plate 12 are mutually protected, the purpose of protecting the polished rod 15 is realized, and the polished rod 15 is prevented from being bent or deviated;

a packing cavity 21 is formed in the top of the interior of the valve seat 8, limiting plates 22 are arranged in the valve seat 8 and the packing cavity 21, and baffles 20 are movably arranged in the limiting plates 22;

one end of the threaded rod 2 is connected with a polish rod 15, and the bottom of the polish rod 15 is movably connected with one end of a baffle 20;

when the device is used, when a part of the valve is damaged, the rotating handle 1 is rotated, the rotating handle 1 drives the threaded rod 2 to rotate, the threaded rod 2 drives the polished rod 15 to rotate, and the polished rod 15 drives the baffle 20 to move up and down, so that the aim of manually controlling the device is fulfilled;

an adjusting shaft 16 is movably connected inside the protective box 7, a connecting rod 17 is movably connected on the adjusting shaft 16, a second bolt 19 is arranged at one end of the connecting rod 17, and a protective cover plate 18 is connected at the other end of the second bolt 19;

when the valve is used, when liquid enters the valve, the protective cover plate 18 is impacted by the impact force of the fluid, the protective cover plate 18 is pushed open, the protective cover plate 18 drives the connecting rod 17 to rotate around the adjusting shaft 16, when the liquid does not flow, the protective cover plate 18 descends due to the action of gravity, and then the protective cover plate 18 is closed, so that the liquid is prevented from flowing back.

The working principle is as follows: when the device is used, the device is fixed on a pipeline to work, the existing device easily causes liquid to flow back, therefore, when liquid enters the valve, the protective cover plate 18 is impacted by the impact force of the fluid, the protective cover plate 18 is pushed open, the protective cover plate 18 drives the connecting rod 17 to rotate around the adjusting shaft 16, when the liquid does not flow, the protective cover plate 18 descends due to the action of gravity, then the protective cover plate 18 is closed, and the purpose of preventing the liquid from flowing back is achieved, the existing device has no manual closing function, therefore, when the device is used, when a part of the valve is damaged, the rotary handle 1 is rotated, the rotary handle 1 drives the threaded rod 2 to rotate, the threaded rod 2 drives the polished rod 15 to rotate, the polished rod 15 drives the baffle 20 to move up and down, and the purpose of manual control of the device is achieved, the existing valve does not protect the polish rod 15, so that the polish rod 15 can be bent and deviated after being used for a long time, and therefore, when the valve is used, the supporting block 11 and the pressing plate 12 are mutually fixed through the threaded pin 5, then the pressing plate 12 is inserted into the first bolt 14, and the polish rod 15 is inserted into the central positions of the fixing frame 4 and the pressing plate 12, so that the fixing frame 4 and the pressing plate 12 are mutually protected, the aim of protecting the polish rod 15 is fulfilled, and the polish rod 15 is prevented from being bent or deviated.

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 check valve with safeguard function, includes rotation handle (1), protecting box (7), disk seat (8) and second ring flange (9), its characterized in that: protection box (7) have been welded to the one end of second ring flange (9), the outside one end welding of protection box (7) has first ring flange (6), the other end welding of disk seat (8) has second ring flange (9), top welding of second ring flange (9) has top ring flange (10), the top welding of top ring flange (10) has supporting shoe (11), swing joint has first bolt (14) on supporting shoe (11), swing joint has threaded pin (5) in supporting shoe (11) and first bolt (14), and threaded pin (5) supporting shoe (11) and first bolt (14) reciprocal anchorage.

2. The check valve with a safeguard function according to claim 1, characterized in that: the top of the top flange plate (10) is welded with a fixing frame (4), a nut (13) is movably connected to the outer portion of the first bolt (14), a pressing plate (12) is arranged on the bottom, close to the nut (13), of the first bolt (14), and the pressing plate (12) presses the top of the inner portion of the fixing frame (4).

3. The check valve with a safeguard function according to claim 2, characterized in that: the welding of mount (4) top has brace table (3), and the inside swing joint of brace table (3) has threaded rod (2), and the top fixed mounting of threaded rod (2) has rotatory handle (1).

4. The check valve with a safeguard function according to claim 1, characterized in that: the packing cavity (21) is arranged at the top inside the valve seat (8), the limiting plates (22) are arranged inside the valve seat (8) and the packing cavity (21), and the baffle (20) is movably arranged inside the limiting plates (22).

5. The check valve with a safeguard function according to claim 3, characterized in that: one end of the threaded rod (2) is connected with a polish rod (15), and the bottom of the polish rod (15) is movably connected with one end of the baffle (20).

6. The check valve with a safeguard function according to claim 1, characterized in that: the inner part of the protective box (7) is movably connected with an adjusting shaft (16), the adjusting shaft (16) is movably connected with a connecting rod (17), one end of the connecting rod (17) is provided with a second bolt (19), and the other end of the second bolt (19) is connected with a protective cover plate (18).