CN214662301U

CN214662301U - Spring direct load type safety valve

Info

Publication number: CN214662301U
Application number: CN202121002810.2U
Authority: CN
Inventors: 叶汉珍
Original assignee: Fuzhou General Electric Power Technology Co ltd
Current assignee: Fuzhou General Electric Power Technology Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-09
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a spring direct load formula relief valve, including disk seat and fixed pipe, the bottom of fixed pipe is provided with the disk seat, the inside of disk seat is provided with the inlet port, the inside of fixed pipe is provided with the spacing spring of second. This spring direct load formula relief valve is through being provided with the connecting block, change the piece, the protection is filled up, the movable block, movable rod and activity groove, twist when needing to change the pressurized value and move the piece, it can drive the threaded rod through the connecting block and go up and down on the top of fixed intraduct, the threaded rod goes up and down the pressurized value that can change the valve clack through the spacing spring of second, it can the person of facilitating the use to change the piece and twist the threaded rod, inside wall at the piece that changes is provided with the protection and fills up, the protection fills up not only can the antiskid can also protect user's finger, through the position that changes the threaded rod, reach the effect that changes the pressurized value and can improve device's practicality, it is inconvenient to dismantle and inconvenient change the pressurized value the threaded rod to solve, use inconvenient problem.

Description

Spring direct load type safety valve

Technical Field

The utility model relates to a relief valve technical field specifically is a spring direct load formula relief valve.

Background

The safety valve is a special branch of valves, the particularity of the safety valve is that the safety valve only plays a role of opening and closing because of being different from other valves, the safety valve also can play a role of protecting equipment safety, the safety valve belongs to automatic valves and is mainly used for boilers, pressure vessels and pipelines, and the existing spring direct load type safety valve still has some problems which are not solved.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art and are not solved:

(1) the traditional spring direct load type safety valve is inconvenient to disassemble a threaded rod, change a pressure value and use;

(2) the traditional spring direct load type safety valve is inconvenient for discharging pressure to equipment, and is easy to cause high-pressure damage to the equipment and even damage to accidents;

(3) traditional spring direct load formula relief valve, inconvenient dustproof to the inside of relief valve, reduce the life of relief valve easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring direct load formula relief valve to propose inconvenient dismantlement to the threaded rod in solving above-mentioned background art, it is inconvenient to use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a spring direct load formula relief valve, includes disk seat and fixed pipe, the bottom of fixed pipe is provided with the disk seat, the inside of disk seat is provided with the inlet port, the inside of fixed pipe is provided with the spacing spring of second, the bottom and the top of the spacing spring of second are provided with the spring holder, the bottom of spring holder is provided with the valve clack, the outside bottom of fixed pipe is provided with protective structure, the inside top of fixed pipe is provided with the threaded rod, the bottom of threaded rod is provided with the kicking block, the bottom of fixed pipe is provided with connection structure, the lateral wall of fixed pipe is provided with the reservation groove, the top of threaded rod is provided with the regulation structure of being convenient for.

Preferably, be convenient for adjust the structure and include the connecting block, connecting block fixed connection is on the top of threaded rod, the top of connecting block is provided with the movable block, the inside fixedly connected with movable groove of movable block, the inside in movable groove is provided with the movable rod, the top of movable rod both sides is provided with the commentaries on classics piece, the inside wall of commentaries on classics piece is provided with the protection and fills up.

Preferably, the inner diameter of the movable groove is larger than the diameter of the movable rod, and the movable rod and the movable groove form movable connection.

Preferably, protective structure comprises lag, sprue, plugged hole, air outlet groove, first spacing spring and row's pressure hole, the lag cup joints in the outside bottom of fixed pipe, the inside bottom of lag is provided with the air outlet groove, the inside of air outlet groove is provided with first spacing spring, the top of first spacing spring is provided with the sprue, the inside top fixedly connected with plugged hole of lag, one side of plugged hole is provided with row's pressure hole.

Preferably, the plugging block is arranged inside the plugging hole, the plugging hole is annularly distributed on the top end inside the protective sleeve, and the air outlet groove is formed in one side of the reserved groove.

Preferably, connection structure comprises first flange, fixing bolt, fixation nut, second flange, dirt proof boot, fixed orifices and rubber pad, the dirt proof boot sets up the bottom at the disk seat, first flange fixed connection is in the outside bottom of disk seat, the outside top of dirt proof boot is provided with the second flange, the inside fixedly connected with fixed orifices of first flange and second flange, the inside of fixed orifices is provided with fixing bolt, the outside bottom of fixing bolt and top are provided with the rubber pad, the bottom of second flange is provided with fixation nut.

Preferably, the fixing holes are annularly distributed in the first flange and the second flange, and the fixing nut is sleeved at the bottom end outside the fixing bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the spring direct-loading safety valve not only realizes the convenient disassembly of the threaded rod and the convenient pressure discharge of equipment, but also prevents the interior of the valve body from heating dust;

(1) the protection pad is arranged on the inner side wall of the rotating block, the protection pad can prevent slipping and protect fingers of a user, the practicability of the device can be improved by changing the position of the threaded rod, and the spring seat can improve the sealing performance of the valve body;

(2) by arranging the protective sleeve, the plugging block, the plugging hole, the air outlet groove, the first limiting spring and the pressure discharge hole, when the air pressure in the fixed pipe is larger, the air pressure can push the valve clack to enable the valve clack not to block the air outlet groove, after the air outlet groove is not blocked by the valve clack, the air pressure in the fixed pipe can enter the air outlet groove, when the air pressure in the air outlet groove is larger than the pressure of the first limiting spring, the first limiting spring can push the plugging block to slide upwards, when the plugging block does not block the pressure discharge hole, the air pressure in the fixed pipe can be discharged from the pressure discharge hole, and the condition of equipment damage can be avoided by completing the pressure discharge work in the fixed pipe;

(3) by arranging the first flange, the fixing bolt, the fixing nut, the second flange, the dustproof sleeve, the fixing hole and the rubber pad, when the pipeline or the dustproof sleeve needs to be installed, the fixing hole in the first flange is aligned with the fixing hole in the second flange, when the fixing holes in the first flange and the second flange are aligned, the fixing bolts are screwed into the fixing holes, the first flange and the second flange can be fixed by screwing the fixing bolt into the fixing hole, the fixing nut can prevent the fixing bolt from falling off accidentally, the rubber pad can prevent the fixing bolt and the fixing hole from being locked, can prevent that the inside of valve body can get into dust and impurity when not using through setting up the dirt proof boot, then can tear the dirt proof boot open the bottom of pipe installation at the valve body when using the valve body, can make things convenient for pipeline and dirt proof boot to install through setting up fixing bolt.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is an enlarged front view of a partial section of the protection structure of the present invention;

fig. 3 is a schematic top view of the protective cover of the present invention;

fig. 4 is an enlarged partial cross-sectional view of the point a in fig. 1 according to the present invention.

In the figure: 1. a valve seat; 2. an air inlet; 3. a valve flap; 4. a protective structure; 401. a protective sleeve; 402. blocking; 403. plugging the hole; 404. an air outlet groove; 405. a first limit spring; 406. pressure discharge holes; 5. a second limit spring; 6. a spring seat; 7. a threaded rod; 8. connecting blocks; 9. rotating the block; 10. a top block; 11. a fixed tube; 12. a connecting structure; 1201. a first flange; 1202. fixing the bolt; 1203. fixing a nut; 1204. a second flange; 1205. a dust-proof sleeve; 1206. a fixing hole; 1207. a rubber pad; 13. a protective pad; 14. a movable block; 15. a movable rod; 16. a movable groove.

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.

Example 1: referring to fig. 1-4, a spring direct load type safety valve includes a valve seat 1 and a fixed tube 11, the bottom end of the fixed tube 11 is provided with the valve seat 1, the inside of the valve seat 1 is provided with an air inlet 2, the inside of the fixed tube 11 is provided with a second limiting spring 5, the bottom end and the top end of the second limiting spring 5 are provided with spring seats 6, the bottom end of the spring seat 6 is provided with a valve flap 3, the bottom end outside the fixed tube 11 is provided with a protective structure 4, the top end inside the fixed tube 11 is provided with a threaded rod 7, the bottom end of the threaded rod 7 is provided with a top block 10, the bottom end of the fixed tube 11 is provided with a connecting structure 12, the outer side wall of the fixed tube 11 is provided with a reserved groove, and the top end of the threaded rod 7 is provided with a structure convenient to adjust;

referring to fig. 1-4, the spring direct load type safety valve further comprises an adjusting structure, the adjusting structure comprises a connecting block 8, the connecting block 8 is fixedly connected to the top end of the threaded rod 7, a movable block 14 is arranged at the top end of the connecting block 8, a movable groove 16 is fixedly connected to the inside of the movable block 14, a movable rod 15 is arranged inside the movable groove 16, rotating blocks 9 are arranged at the top ends of two sides of the movable rod 15, a protective pad 13 is arranged on the inner side wall of each rotating block 9, the inner diameter of the movable groove 16 is larger than that of the movable rod 15, and the movable rod 15 is movably connected with the movable groove 16;

specifically, as shown in fig. 1 and 4, twist and move commentaries on classics piece 9 when needing to change the pressurized value, commentaries on classics piece 9 can drive threaded rod 7 through connecting block 8 and go up and down on the inside top of fixed pipe 11, threaded rod 7 goes up and down to change the pressurized value of valve clack 3 through second spacing spring 5, commentaries on classics piece 9 can the person of facilitating the use twist threaded rod 7, inside wall at commentaries on classics piece 9 is provided with protection pad 13, protection pad 13 not only can the antiskid can also protect user's finger, through the position that changes threaded rod 7, reach the effect that changes the pressurized value and can improve device's practicality, spring holder 6 can improve the leakproofness of valve body.

Example 2: the protective structure 4 comprises a protective sleeve 401, a blocking piece 402, a blocking hole 403, an air outlet groove 404, a first limiting spring 405 and a pressure discharge hole 406, the protective sleeve 401 is sleeved at the bottom end outside the fixed pipe 11, the air outlet groove 404 is arranged at the bottom end inside the protective sleeve 401, the first limiting spring 405 is arranged inside the air outlet groove 404, the blocking piece 402 is arranged at the top end of the first limiting spring 405, the blocking hole 403 is fixedly connected to the top end inside the protective sleeve 401, the pressure discharge hole 406 is arranged on one side of the blocking hole 403, the blocking piece 402 is arranged inside the blocking hole 403, the blocking hole 403 is annularly distributed at the top end inside the protective sleeve 401, and the air outlet groove 404 is arranged on one side of the reserved groove;

specifically, as shown in fig. 1, fig. 2 and fig. 3, when the air pressure inside the fixed pipe 11 is large, the air pressure pushes the valve flap 3 to prevent the valve flap 3 from blocking the air outlet groove 404, after the air outlet groove 404 is not blocked by the valve flap 3, the air pressure inside the fixed pipe 11 enters the air outlet groove 404, when the air pressure inside the air outlet groove 404 is greater than the pressure of the first limiting spring 405, the first limiting spring 405 can push the blocking block 402 to slide upwards, when the blocking block 402 does not block the pressure discharge hole 406, the air pressure inside the fixed pipe 11 can be discharged from the pressure discharge hole 406, and by completing the pressure relief work inside the fixed pipe 11, the situation of equipment damage can be avoided.

Example 3: the connecting structure 12 comprises a first flange 1201, a fixing bolt 1202, a fixing nut 1203, a second flange 1204, a dustproof sleeve 1205, a fixing hole 1206 and a rubber pad 1207, the dustproof sleeve 1205 is arranged at the bottom end of the valve seat 1, the first flange 1201 is fixedly connected to the bottom end of the outer portion of the valve seat 1, the second flange 1204 is arranged at the top end of the outer portion of the dustproof sleeve 1205, the fixing hole 1206 is fixedly connected to the inner portions of the first flange 1201 and the second flange 1204, the fixing bolt 1202 is arranged inside the fixing hole 1206, the rubber pad 1207 is arranged at the bottom end and the top end of the outer portion of the fixing bolt 1202, the fixing nut 1203 is arranged at the bottom end of the second flange 1204, the fixing holes 1206 are annularly distributed inside the first flange 1201 and the second flange 1204, and the fixing nut 1203 is sleeved at the bottom end of the outer portion of the fixing bolt 1202;

specifically, as shown in FIG. 1, when a pipe or boot 1205 is to be installed, the mounting holes 1206 in the interior of the first flange 1201 are aligned with the mounting holes 1206 in the interior of the second flange 1204, when the fixing holes 1206 of the inner portion of the first flange 1201 and the fixing holes 1206 of the second inner portion of the second flange 1204 are aligned and then the fixing bolts 1202 are screwed into the inner portions of the fixing holes 1206, the first flange 1201 and the second flange 1204 can be fixed by screwing the fixing bolt 1202 into the fixing hole 1206, the fixing nut 1203 can prevent the fixing bolt 1202 from falling off accidentally, the rubber pad 1207 can prevent the fixing bolt 1202 and the fixing hole 1206 from being stuck, can prevent that the inside of valve body from getting into dust and impurity when not using through setting up dirt proof boot 1205, then can tear dirt proof boot 1205 open the bottom of pipeline installation at the valve body when using the valve body, can make things convenient for pipeline and dirt proof boot 1205 to install through setting up fixing bolt 1202.

The working principle is as follows: when the utility model is used, the dust-proof sleeve 1205 needs to be detached from the bottom end of the valve body, the fixing bolt 1202 is screwed out from the inside of the fixing hole 1206 to finish the detachment of the dust-proof sleeve 1205, the pipeline is installed after the dust-proof sleeve 1205 is detached, the fixing hole 1206 in the first flange 1201 is aligned with the fixing hole 1206 in the second flange 1204 when the pipeline is installed, the fixing bolt 1202 is screwed into the fixing hole 1206 after the fixing hole 1206 in the first flange 1201 is aligned with the fixing hole 1206 in the second flange 1204, the first flange 1201 and the second flange 1204 can be fixed by screwing the fixing bolt 1202 into the fixing hole 1206, the fixing nut 1203 can prevent the fixing bolt 1202 from accidentally falling off, the rubber pad 1207 can prevent the fixing bolt 1202 and the fixing hole 1206 from being blocked, after the pipeline installation is finished, the rotating block 9 is screwed when the pressure value needs to be changed, the rotating block 9 can drive the threaded rod 7 to lift at the top end inside the fixed pipe 11 through the connecting block 8, the lifting of the threaded rod 7 can change the pressure value of the valve clack 3 through the second limiting spring 5, the practicability of the device can be improved by changing the position of the threaded rod 7, the spring seat 6 can improve the sealing performance of the valve body, when the air pressure inside the fixed pipe 11 is larger, the air pressure can push the valve clack 3 to enable the valve clack 3 not to block the air outlet groove 404, after the air outlet groove 404 is not blocked by the valve clack 3, the air pressure inside the fixed pipe 11 can enter the air outlet groove 404, when the air pressure inside the air outlet groove 404 is larger than the pressure of the first limiting spring 405, the first limiting spring 405 can push the blocking block 402 to slide upwards, when the blocking block 402 does not block the pressure outlet hole 406, the air pressure inside the fixed pipe 11 can be discharged from the pressure outlet hole 406, and the pressure relief work inside the fixed pipe 11 can be completed, the situation of equipment damage can be avoided.

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. A spring direct load type safety valve comprises a valve seat (1) and a fixed pipe (11), and is characterized in that: the bottom of fixed pipe (11) is provided with disk seat (1), the inside of disk seat (1) is provided with inlet port (2), the inside of fixed pipe (11) is provided with the spacing spring of second (5), the bottom and the top of the spacing spring of second (5) are provided with spring holder (6), the bottom of spring holder (6) is provided with valve clack (3), the outside bottom of fixed pipe (11) is provided with protective structure (4), the inside top of fixed pipe (11) is provided with threaded rod (7), the bottom of threaded rod (7) is provided with kicking block (10), the bottom of fixed pipe (11) is provided with connection structure (12), the lateral wall of fixed pipe (11) is provided with the reservation groove, the top of threaded rod (7) is provided with the regulation structure of being convenient for.

2. A spring direct load relief valve as set forth in claim 1 wherein: be convenient for adjust structure and include connecting block (8), connecting block (8) fixed connection is on the top of threaded rod (7), the top of connecting block (8) is provided with movable block (14), the inside fixedly connected with activity groove (16) of movable block (14), the inside in activity groove (16) is provided with movable rod (15), the top of movable rod (15) both sides is provided with commentaries on classics piece (9), the inside wall of commentaries on classics piece (9) is provided with protection pad (13).

3. A spring direct load relief valve as claimed in claim 2, wherein: the inner diameter of the movable groove (16) is larger than that of the movable rod (15), and the movable rod (15) is movably connected with the movable groove (16).

4. A spring direct load relief valve as set forth in claim 1 wherein: protective structure (4) comprise lag (401), sprue (402), stop hole (403), air outlet groove (404), first spacing spring (405) and row's pressure hole (406), lag (401) cup joint in fixed pipe (11) outside bottom, the inside bottom of lag (401) is provided with air outlet groove (404), the inside of air outlet groove (404) is provided with first spacing spring (405), the top of first spacing spring (405) is provided with stop block (402), the inside top fixedly connected with stop hole (403) of lag (401), one side of stop hole (403) is provided with row's pressure hole (406).

5. The spring direct load relief valve of claim 4, wherein: the blocking block (402) is arranged inside the blocking hole (403), the blocking hole (403) is annularly distributed at the top end inside the protective sleeve (401), and the air outlet groove (404) is arranged on one side of the reserved groove.

6. A spring direct load relief valve as set forth in claim 1 wherein: connection structure (12) comprise first flange (1201), fixing bolt (1202), fixation nut (1203), second flange (1204), dirt proof boot (1205), fixed orifices (1206) and rubber pad (1207), dirt proof boot (1205) set up the bottom at disk seat (1), first flange (1201) fixed connection is in the outside bottom of disk seat (1), the outside top of dirt proof boot (1205) is provided with second flange (1204), the inside fixedly connected with fixed orifices (1206) of first flange (1201) and second flange (1204), the inside of fixed orifices (1206) is provided with fixing bolt (1202), the outside bottom and the top of fixing bolt (1202) are provided with rubber pad (1207), the bottom of second flange (1204) is provided with fixation nut (1203).

7. A spring direct load relief valve according to claim 6, wherein: the fixing holes (1206) are distributed in the first flange (1201) and the second flange (1204) in an annular mode, and the fixing nuts (1203) are sleeved at the bottom end of the outer portion of the fixing bolt (1202).