CN212429864U

CN212429864U - Bypass valve control device of low-pressure automatic recirculation pump protection valve

Info

Publication number: CN212429864U
Application number: CN202020897815.5U
Authority: CN
Inventors: 洪文华
Original assignee: Jiangsu Huaying Valves Co ltd
Current assignee: Jiangsu Huaying Valves Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-29
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a bypass valve controlling means of low pressure automatic recirculation pump protective valve, including valve body, mobile jib, round pin axle subassembly and valve gap, the inside intermediate position department of valve body is provided with the mobile jib, the bottom of mobile jib both sides all is provided with the guide pin bushing, the front end of mobile jib is provided with round pin axle subassembly, the outside swing joint of round pin axle subassembly has the connecting rod, the top fixedly connected with main valve lamella of mobile jib, the inside top of main valve lamella is provided with the spring. The utility model discloses a dismouting bolt, finned plate, dismouting groove and internal thread have set gradually in split type structure's inside, when using, twist the inside in dismouting groove with the dismouting bolt through threaded connection in proper order, just so can fix the valve gap on the valve body, when needs dismantle the maintenance to the device, twist out the dismouting bolt, just so can make valve body and valve gap separation, adopt split type structure can make the device dismantle the maintenance very convenient, the use of the device of being convenient for.

Description

Bypass valve control device of low-pressure automatic recirculation pump protection valve

Technical Field

The utility model relates to a bypass valve control technology field specifically is a bypass valve controlling means of low pressure automatic recirculation pump protection valve.

Background

The bypass valve is a component which is installed on the automatic recirculation pump and used for protecting the automatic recirculation pump, when the bypass valve of the automatic recirculation pump protection valve is controlled to move between the fully-opened position and the fully-closed position of the main valve flap mainly through the main valve flap and the main rod, the inclined surface of the main rod drives the guide wheel component to enable the auxiliary valve rod to move in a direction perpendicular to the moving direction of the main rod, and the movement of the auxiliary valve rod realizes full opening, adjustment and full closing between the bypass valve seat and the bypass valve flap.

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 bypass valve control device of the traditional low-pressure automatic recirculation pump protection valve is inconvenient to disassemble and maintain and inconvenient to use;

(2) the connection part of the bypass valve control device of the traditional low-pressure automatic recirculation pump protection valve has poor tightness, is easy to leak water and is inconvenient to use;

(3) the bypass valve control device of the traditional low-pressure automatic recirculation pump protection valve is easy to block, and the normal use of the device is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bypass valve controlling means of automatic recirculation pump protection valve of low pressure to propose inconvenient dismantlement and maintenance to it in solving above-mentioned background art, use very inconvenient, the junction leakproofness is relatively poor, the phenomenon of leaking appears easily, be not convenient for use and the easy problem that blocks up, the normal use of influence device appear.

In order to achieve the above object, the utility model provides a following technical scheme: a bypass valve control device of a low-pressure automatic recirculation pump protection valve comprises a valve body, a main rod, a pin shaft assembly and a valve cover, wherein the main rod is arranged at the middle position inside the valve body, guide sleeves are arranged at the bottom ends of the two sides of the main rod, the front end of the main rod is provided with the pin shaft assembly, a connecting rod is movably connected outside the pin shaft assembly, a main valve flap is fixedly connected to the top end of the main rod, a spring is arranged at the top end inside the main valve flap, a guide cylinder is arranged outside the spring, the top end of the valve body is provided with the valve cover, a split structure is arranged between the valve body and the valve cover, one side of the split structure is provided with a sealing ring, a bypass joint is arranged at the position, close to the bottom end, of one side of the valve body, a bypass valve seat is arranged, swing joint between fixed pin and the connecting rod, the outside of bypass disk seat is provided with O type circle, the inside bottom of valve body is provided with filtration.

Preferably, dismouting bolt, finned plate, dismouting groove and internal thread have been set gradually to split type structure's inside, the outside bottom of valve gap is provided with the finned plate, the inside of finned plate and the inside on valve body top all evenly are provided with the dismouting groove, be provided with the internal thread on the inside wall in dismouting groove, the dismouting bolt has been run through to the inside of finned plate.

Preferably, the internal thread in the dismounting groove is matched with the dismounting bolt, and the dismounting bolt is in threaded connection with the dismounting groove.

Preferably, the top end of the valve body is provided with a groove with a width larger than that of the sealing ring, and the sealing ring is embedded in the groove.

Preferably, filter screen, fixed block, draw-in groove and fixture block have set gradually in filtration's inside, the filter screen sets up the bottom in the valve body is inside, the outside fixedly connected with fixture block of filter screen, fixed block fixed connection is on the inside wall of valve body bottom, the inside of fixed block is provided with the draw-in groove.

Preferably, the length and the width of the clamping block are smaller than those of the clamping groove, and a clamping structure is formed between the clamping groove and the clamping block.

Compared with the prior art, the beneficial effects of the utility model are that: the bypass valve control device of the low-pressure automatic recirculation pump protection valve not only realizes convenient disassembly and maintenance, is very convenient to use, realizes better sealing performance of a joint, prevents water leakage, is convenient to use, but also realizes prevention of blockage and ensures normal use of the device;

(1) the valve cover is fixed on the valve body, and when the device needs to be disassembled and maintained, the disassembling bolt is screwed out, so that the valve body and the valve cover can be separated, and the device can be disassembled and maintained very conveniently by adopting the split structure, and the device is convenient to use;

(2) the sealing ring is arranged on one side of the split structure, the groove with the width larger than that of the sealing ring is formed in the top end of the valve body, and the sealing ring is embedded in the groove;

(3) through having set gradually the filter screen in filtration's inside, the fixed block, draw-in groove and fixture block, when using, through being provided with the filter screen, the filter screen can prevent the impurity of aquatic or the inside adnexed incrustation scale of pipeline along with rivers entering valve body's inside, causes the valve body to appear blockking up, and the block structure that constitutes between draw-in groove and the fixture block is passed through to the filter screen simultaneously, can be convenient for dismantle and change the filter screen, can guarantee the normal use of device like this, improves the availability factor of device.

Drawings

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

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

FIG. 3 is a schematic view of the bottom enlarged partial section of the valve 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 body; 2. a guide sleeve; 3. a main rod; 4. a pin assembly; 5. a connecting rod; 6. a fixing pin; 7. a main valve flap; 8. a spring; 9. a guide cylinder; 10. a valve cover; 11. a bypass connection; 12. a bypass valve seat; 13. a bypass valve flap; 14. an O-shaped ring; 15. a split structure; 1501. disassembling and assembling the bolt; 1502. a fin plate; 1503. disassembling and assembling the groove; 1504. an internal thread; 16. a seal ring; 17. a filter structure; 1701. a filter screen; 1702. a fixed block; 1703. a card slot; 1704. and (7) clamping blocks.

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. 1-4, the present invention provides an embodiment: a bypass valve control device of a low-pressure automatic recirculation pump protection valve comprises a valve body 1, a main rod 3, a pin shaft assembly 4 and a valve cover 10, wherein the main rod 3 is arranged in the middle of the inside of the valve body 1, guide sleeves 2 are arranged at the bottom ends of two sides of the main rod 3, the pin shaft assembly 4 is arranged at the front end of the main rod 3, a connecting rod 5 is movably connected to the outside of the pin shaft assembly 4, a main valve flap 7 is fixedly connected to the top end of the main rod 3, a spring 8 is arranged at the top end of the inside of the main valve flap 7, a guide cylinder 9 is arranged outside the spring 8, the valve cover 10 is arranged at the top end of the valve;

the detachable structure 15 is internally provided with a detachable bolt 1501, a fin plate 1502, a detachable groove 1503 and an internal thread 1504 in sequence, the fin plate 1502 is arranged at the bottom end of the outer part of the valve cover 10, the detachable groove 1503 is uniformly arranged in the fin plate 1502 and the top end of the valve body 1, the internal thread 1504 is arranged on the inner side wall of the detachable groove 1503, and the detachable bolt 1501 penetrates through the fin plate 1502;

the internal thread 1504 inside the dismounting groove 1503 is matched with the dismounting bolt 1501, and the dismounting bolt 1501 and the dismounting groove 1503 form threaded connection;

specifically, as shown in fig. 1, 2 and 3, when the mechanism is used, firstly, the dismounting bolt 1501 is screwed into the dismounting groove 1503 through threaded connection in sequence, so that the valve cover 10 can be fixed on the valve body 1, and when the device needs to be dismounted and maintained, the dismounting bolt 1501 is screwed out, so that the valve body 1 and the valve cover 10 can be separated, and the device can be very conveniently dismounted and maintained by adopting the split structure 15, and the device is convenient to use;

a sealing ring 16 is arranged on one side of the split structure 15, a groove with the width larger than that of the sealing ring 16 is arranged at the top end of the valve body 1, and the sealing ring 16 is embedded in the groove;

specifically, as shown in fig. 1 and 3, when the mechanism is used, firstly, the sealing ring 16 is arranged at the joint of the valve body 1 and the valve cover 10, so that the water leakage phenomenon at the joint of the valve body 1 and the valve cover 10 can be effectively prevented, the maintenance frequency of the device is reduced, and the mechanism is very convenient to use;

a bypass joint 11 is arranged at a position, close to the bottom end, of one side of the valve body 1, a bypass valve seat 12 is arranged inside the bypass joint 11, a bypass valve clack 13 is arranged at one side of the bypass valve seat 12, a fixing pin 6 is arranged at one side of the bypass valve clack 13, the fixing pin 6 is movably connected with the connecting rod 5, an O-shaped ring 14 is arranged outside the bypass valve seat 12, and a filtering structure 17 is arranged at the bottom end inside the valve body 1;

a filter screen 1701, a fixed block 1702, a clamping groove 1703 and a clamping block 1704 are sequentially arranged in the filter structure 17, the filter screen 1701 is arranged at the bottom end in the valve body 1, the clamping block 1704 is fixedly connected to the outer part of the filter screen 1701, the fixed block 1702 is fixedly connected to the inner side wall of the bottom end of the valve body 1, and the clamping groove 1703 is arranged in the fixed block 1702;

the length and the width of the clamping block 1704 are both smaller than those of the clamping groove 1703, and a clamping structure is formed between the clamping groove 1703 and the clamping block 1704;

specifically, as shown in fig. 1 and 4, when the mechanism is used, firstly, by providing the filter screen 1701, the filter screen 1701 can prevent impurities in water or scales attached to the inside of a pipeline from entering the inside of the valve body 1 along with water flow, so that the valve body 1 is blocked, and meanwhile, the filter screen 1701 can be conveniently detached and replaced through a clamping structure formed between the clamping groove 1703 and the clamping block 1704, so that the normal use of the device can be ensured, and the use efficiency of the device is improved.

The working principle is as follows: the utility model discloses when using, at first, twist dismouting bolt 1501 through threaded connection in proper order the inside of dismouting groove 1503, just so can fix valve gap 10 on valve body 1, when needs dismantle the maintenance to the device, screw out dismouting bolt 1501, just so can make valve body 1 and valve gap 10 separation, adopt split type structure 15 can make the device dismantle the maintenance get up very conveniently, the use of the device of being convenient for.

Then, through being provided with sealing washer 16 in the junction of valve body 1 and valve gap 10, can prevent effectively that the junction of valve body 1 and valve gap 10 from appearing the water leakage phenomenon like this, reduce the maintenance number of times of device, it is very convenient to use.

Finally, through being provided with filter screen 1701, filter screen 1701 can prevent the inside adnexed incrustation scale of impurity or the pipeline in aquatic along with rivers entering valve body 1's inside, causes valve body 1 to appear blockking up, and filter screen 1701 can be convenient for dismantle and change filter screen 1701 through the block structure that constitutes between draw-in groove 1703 and the fixture block 1704 simultaneously, can guarantee the normal use of device like this, improves the availability factor of device.

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 bypass valve controlling means of automatic recirculation pump protection valve of low pressure, includes valve body (1), mobile jib (3), round pin axle subassembly (4) and valve gap (10), its characterized in that: the valve is characterized in that a main rod (3) is arranged at the middle position inside the valve body (1), guide sleeves (2) are arranged at the bottom ends of two sides of the main rod (3), a pin shaft assembly (4) is arranged at the front end of the main rod (3), a connecting rod (5) is movably connected to the outside of the pin shaft assembly (4), a main valve flap (7) is fixedly connected to the top end of the main rod (3), a spring (8) is arranged at the top end inside the main valve flap (7), a guide cylinder (9) is arranged outside the spring (8), a valve cover (10) is arranged at the top end of the valve body (1), a split structure (15) is arranged between the valve body (1) and the valve cover (10), a sealing ring (16) is arranged on one side of the split structure (15), a bypass joint (11) is arranged at the position, close to the bottom end, of one side of the, one side of bypass disk seat (12) is provided with bypass valve clack (13), and one side of bypass valve clack (13) is provided with fixed pin (6), swing joint between fixed pin (6) and connecting rod (5), the outside of bypass disk seat (12) is provided with O type circle (14), the inside bottom of valve body (1) is provided with filtration (17).

2. The bypass valve control apparatus of a low pressure automatic recirculation pump protection valve according to claim 1, wherein: the detachable valve is characterized in that a dismounting bolt (1501), a fin plate (1502), a dismounting groove (1503) and an internal thread (1504) are sequentially arranged in the split type structure (15), the fin plate (1502) is arranged at the bottom end of the outer portion of the valve cover (10), the dismounting groove (1503) is uniformly arranged in the fin plate (1502) and the valve body (1) at the top end, the internal thread (1504) is arranged on the inner side wall of the dismounting groove (1503), and the dismounting bolt (1501) penetrates through the inner portion of the fin plate (1502).

3. The bypass valve control apparatus of a low pressure automatic recirculation pump protection valve according to claim 2, characterized in that: the internal thread (1504) in the dismounting groove (1503) is matched with the dismounting bolt (1501), and the dismounting bolt (1501) is in threaded connection with the dismounting groove (1503).

4. The bypass valve control apparatus of a low pressure automatic recirculation pump protection valve according to claim 1, wherein: the top of valve body (1) is provided with the width and is greater than the recess of sealing washer (16), and inside in the recess is inlayed in sealing washer (16).

5. The bypass valve control apparatus of a low pressure automatic recirculation pump protection valve according to claim 1, wherein: the inside of filtration (17) has set gradually filter screen (1701), fixed block (1702), draw-in groove (1703) and fixture block (1704), filter screen (1701) set up the bottom in valve body (1) inside, the outside fixedly connected with fixture block (1704) of filter screen (1701), fixed block (1702) fixed connection is on the inside wall of valve body (1) bottom, the inside of fixed block (1702) is provided with draw-in groove (1703).

6. The bypass valve control apparatus of a low pressure automatic recirculation pump protection valve according to claim 5, characterized in that: the length and the width of the clamping block (1704) are smaller than those of the clamping groove (1703), and a clamping structure is formed between the clamping groove (1703) and the clamping block (1704).