CN114321428A

CN114321428A - Labor-saving valve

Info

Publication number: CN114321428A
Application number: CN202111620787.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiangshui Gesiqi Technology Co ltd
Current assignee: Xiangshui Gesiqi Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-04-12

Abstract

The invention relates to the technical field of valves, in particular to a labor-saving valve which comprises a shell, wherein a fixed block is fixedly connected to the shell, control mechanisms are arranged on the shell and the fixed block, a driving mechanism is arranged on the fixed block, adding mechanisms are arranged in the shell and the fixed block, a closing mechanism is arranged on the fixed block, a sealing mechanism is arranged in the shell, and a filtering mechanism is arranged on the shell; the control mechanism drives the adding mechanism, so that when the valve is opened, the corresponding control assembly is directly rotated to complete the addition of the additive according to the requirement without a plurality of operation steps; through the sealing mechanism, the looseness of a sealing ring between the valve ball main body and the shell can be conveniently reduced after the valve ball main body is used for a long time, the valve ball main body is better sealed, and the leakage probability is reduced; through the filtering mechanism, dirt particles generated in the petroleum pipeline due to long-term use are conveniently filtered, and the dirt particles are prevented from entering the shell.

Description

Labor-saving valve

Technical Field

The invention relates to the technical field of valves, in particular to a labor-saving valve.

Background

The valve is used for opening and closing the pipeline, controlling the flow direction, regulating and controlling the pipeline accessories of the conveying medium. According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. In the petroleum pipeline transportation process, corresponding ball valve structures are often used, and corresponding wrenches and hand wheels are mostly adopted to control the valves for labor saving and convenience in operation.

However, in the actual transportation process of the conventional petroleum pipeline, in order to achieve smooth transportation, some additives such as a drag reducer may need to be added, however, most of the conventional operation methods need to open the valve or the addition port arranged on the pipeline, then put in the additives, and finally close the addition port again, so that the whole operation needs a plurality of steps and is relatively troublesome; meanwhile, in the long-time transportation process, dirt particles are generated on the inner wall of the pipeline, and if the dirt particles enter the valve body, the dirt particles can influence the normal work of the valve along with the continuous accumulation increase; in addition, in long-time work, along with long-term rotation operation of the valve ball, a sealing ring between the valve ball and the inner wall of the valve body is easy to loosen, so that the valve ball is not tightly sealed, and a leakage condition is generated; on the other hand, in actual operation, sometimes, the operation component of the valve is touched by mistake due to the influence of external environments such as accidental touch, and thus the normal control of the valve on the pipeline is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a labor-saving valve.

The technical scheme adopted by the invention for solving the technical problems is as follows: a labor-saving valve comprises a shell, wherein a fixed block is fixedly connected to the shell, a control mechanism is arranged on the shell and the fixed block, a driving mechanism is arranged on the fixed block, adding mechanisms are arranged in the shell and the fixed block, a closing mechanism is arranged on the fixed block, a sealing mechanism is arranged in the shell, and a filtering mechanism is arranged on the shell;

the control mechanism comprises a rotating rod, the rotating rod is rotatably connected in the fixed block, the rotating rod extends into the shell and is connected with a valve ball, the valve ball is rotatably connected in the shell and is in a hollow spherical shape, and the end parts of the abutting rod and the pressure rod are in a hemispherical shape;

add the mechanism including supporting the pole, fixedly connected with supports the pole on the bull stick, sliding connection has the pressure pole in the fixed block, the winding has the second spring on the pressure pole, second spring fixed connection is in the pressure pole, sliding connection has the block in the fixed block, fixedly connected with third spring on the block, third spring fixed connection is inside the fixed block, fixedly connected with is managed on the fixed block, it is inside that the pipe extends to the casing even, be equipped with the runner on the fixed block, fixedly connected with lead screw on the runner, sliding connection has the push pedal in the fixed block, lead screw threaded connection is inside the push pedal.

Specifically, actuating mechanism is including settling the piece, fixedly connected with settles the piece on the fixed block, it is equipped with the hand wheel on the piece to settle, fixedly connected with connecting rod on the hand wheel, the connecting rod extends to and settles the piece inside and be connected with the gear, the winding has first spring on the connecting rod, first spring fixed connection is in the connecting rod.

Specifically, the closing mechanism includes the turning handle, be equipped with the turning handle on the fixed block, fixedly connected with screw rod on the turning handle, screw rod threaded connection is inside the fixed block, just fixedly connected with shutoff on the screw rod.

Specifically, sealing mechanism includes the seal receptacle, two seal receptacles of fixedly connected with in the casing, just the valve ball is located between two seal receptacles, install rubber seal pad in the seal receptacle, rubber seal pad is contradicted in the valve ball, fixedly connected with pressurized pad on the rubber seal pad, fixedly connected with fourth spring on the pressurized pad, fourth spring fixed connection is inside the seal receptacle.

Specifically, filtering mechanism includes the filter screen, be equipped with the filter screen on the casing, be equipped with the briquetting on the filter screen, fixedly connected with ejector pad on the briquetting, the winding has the fifth spring on the ejector pad, fifth spring fixed connection is in the briquetting, the inside sliding connection of filter screen has the fixture block, the winding has the sixth spring on the fixture block, sixth spring fixed connection is in the fixture block.

The invention has the beneficial effects that:

(1) when the labor-saving valve is used, the control mechanism is arranged on the fixed block, the adding mechanism is arranged on the fixed block and the control mechanism, and the adding mechanism is driven by the control mechanism, so that when the valve is opened, the additive can be added by directly rotating the corresponding control assembly according to needs, a plurality of operation steps are not needed, and the use is more convenient; namely: in actual operation, a user can drive the rotating rod to rotate according to needs, the rotating rod rotates to drive the valve ball to rotate, when the valve ball rotates ninety degrees, the valve channel is opened, the resisting rod is driven to rotate along with the rotation of the rotating rod, the pressed rod is continuously extruded and abutted along with the rotation of the resisting rod, the pressed rod is pressed to move to push the sealing block, the second spring and the third spring are simultaneously compressed until the through hole in the sealing block is aligned with the position of the connecting pipe, the rotating wheel can be rotated at the moment, the rotating wheel rotates to drive the screw rod to rotate, the push plate is driven to move by the screw rod, the additive in the inner cavity of the fixing block is extruded and pushed, the additive enters the shell through the connecting pipe and is mixed into conveyed petroleum, and when the valve is opened, the additive can be added by directly rotating the rotating wheel according to needs, a plurality of operation steps are not needed, so that the use is more convenient.

(2) When the labor-saving valve is used, the driving mechanism is arranged in the fixed block, and the driving mechanism is used, so that a layer of safety effect is conveniently played on the control mechanism, the control mechanism is prevented from being touched by mistake due to some accident conditions, and the normal control of the valve on a pipeline is always ensured; namely: during the operation, the user can manually hold the hand wheel and press, then the hand wheel removes and drives the connecting rod and remove, and then drives the gear and remove, and first spring is compressed simultaneously, until inside the gear block advances the bull stick, at this moment, can rotate the hand wheel, then the hand wheel rotates and conveniently drives the bull stick and rotate to conveniently play the effect that the one deck is insured to the bull stick, avoid leading to the bull stick to be touched by the mistake because some unexpected circumstances, guaranteed the normal control of valve to the pipeline all the time.

(3) When the labor-saving valve is used, the sealing mechanism is arranged in the shell, and the looseness of a sealing ring between the valve ball main body and the shell can be conveniently reduced after the valve is used for a long time through the sealing mechanism, so that the valve ball main body is better sealed, and the leakage probability is reduced; namely: during actual operation, through seal receptacle and rubber packing pad, it is sealed to have realized the partition to the valve ball both sides, it is further, through the fourth spring, can carry out the conflict of kick-backing to the pressurized pad all the time, and then carry out the conflict of kick-backing to rubber packing pad, make rubber packing pad remain the state of conflict valve ball all the time, thereby the convenience can alleviate the valve ball and seal up the not hard up of rubber packing between the casing after long-term the use, make better seal up the valve ball, reduce the probability of revealing.

(4) When the labor-saving valve is used, the filtering mechanism is arranged on the shell, and dirt particles generated in a petroleum pipeline due to long-term use are conveniently filtered through the filtering mechanism, so that the dirt particles are prevented from entering the shell, and the normal use of the whole valve is ensured; namely: before using, the user can press the briquetting of filter screen both sides earlier, then the briquetting removes and drives the ejector pad removal, the ejector pad extrudees the conflict to the fixture block, fifth spring and sixth spring are compressed simultaneously, it is inside to retract into the filter screen until the fixture block, then, settle the filter screen in the opening of casing one end again, then loosen the pressing to the briquetting, then under the effect of fifth spring and sixth spring resilience force, the fixture block will block and advance inside the casing, thereby in actual transportation process, the convenient dirt granule that produces because of long-term use in to the petroleum pipeline filters, avoid inside these dirt granules get into the casing, guarantee the normal use of whole valve.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of a preferred embodiment of a labor-saving valve according to the present invention;

FIG. 2 is a schematic view of a connecting structure of the housing, the fixing block, the control mechanism, the adding mechanism and the sealing mechanism according to the present invention;

FIG. 3 is a schematic view of a connection structure of a fixing block and an adding mechanism according to the present invention;

FIG. 4 is an enlarged view of the part A shown in FIG. 2;

FIG. 5 is an enlarged view of the structure of the portion B shown in FIG. 2;

FIG. 6 is an enlarged view of the structure of the portion C shown in FIG. 2;

fig. 7 is an enlarged view of the structure of the portion D shown in fig. 2.

In the figure: 1. a housing; 2. a fixed block; 3. a control mechanism; 301. a rotating rod; 302. a valve ball; 4. a drive mechanism; 401. a mounting block; 402. a hand wheel; 403. a connecting rod; 404. a gear; 405. a first spring; 5. an adding mechanism; 501. a support rod; 502. a pressure receiving rod; 503. a second spring; 504. sealing blocks; 505. a third spring; 506. connecting pipes; 507. a rotating wheel; 508. a screw rod; 509. pushing the plate; 6. a closing mechanism; 601. a handle is rotated; 602. a screw; 603. sealing; 7. a sealing mechanism; 701. a sealing seat; 702. a rubber gasket; 703. a pressure pad; 704. a fourth spring; 8. a filtering mechanism; 801. filtering with a screen; 802. briquetting; 803. a push block; 804. a fifth spring; 805. a clamping block; 806. and a sixth spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the labor-saving valve of the present invention includes a housing 1, a fixed block 2 is fixedly connected to the housing 1, a control mechanism 3 is disposed on the housing 1 and the fixed block 2, a driving mechanism 4 is disposed on the fixed block 2, an adding mechanism 5 is disposed in the housing 1 and the fixed block 2, a closing mechanism 6 is disposed on the fixed block 2, a sealing mechanism 7 is disposed in the housing 1, and a filtering mechanism 8 is disposed on the housing 1;

the control mechanism 3 comprises a rotating rod 301, the rotating rod 301 is rotatably connected in the fixed block 2, the rotating rod 301 extends into the shell 1 and is connected with a valve ball 302, the valve ball 302 is rotatably connected in the shell 1, the valve ball 302 is in a hollow spherical shape, and the ends of the resisting rod 501 and the pressure rod 502 are in a hemispherical shape;

the adding mechanism 5 comprises a resisting rod 501, the rotating rod 301 is fixedly connected with the resisting rod 501, the fixed block 2 is connected with a pressed rod 502 in a sliding manner, the pressed rod 502 is wound with a second spring 503, the second spring 503 is fixedly connected with the pressed rod 502, the fixed block 2 is connected with a sealing block 504 in a sliding manner, the sealing block 504 is fixedly connected with a third spring 505, the third spring 505 is fixedly connected inside the fixed block 2, the fixed block 2 is fixedly connected with a connecting pipe 506, the connecting pipe 506 extends into the shell 1, the fixed block 2 is provided with a rotating wheel 507, the rotating wheel 507 is fixedly connected with a lead screw 508, the fixed block 2 is connected with a push plate 509 in a sliding manner, and the lead screw 508 is in threaded connection with the inside of the push plate 509; when the valve is used, the control mechanism 3 is arranged on the fixed block 2, the adding mechanism 5 is arranged on the fixed block 2 and the control mechanism 3, and the adding mechanism 5 is driven by the control mechanism 3, so that when the valve is opened, the additive can be added by directly rotating the corresponding control assembly according to needs, a plurality of operation steps are not needed, and the valve is more convenient to use; namely: in actual operation, according to needs, a user can drive the rotating rod 301 to rotate the rotating rod 301, the rotating rod 301 rotates to drive the valve ball 302 to rotate, when the valve ball 302 rotates ninety degrees, the valve channel is opened, and along with the rotation of the rotating rod 301, the resisting rod 501 is also driven to rotate, along with the rotation of the resisting rod 501, the pressed rod 502 is continuously extruded and abutted, the pressed rod 502 is pressed to move, and then the sealing block 504 is pushed, the second spring 503 and the third spring 505 are simultaneously compressed until the through hole on the sealing block 504 aligns with the position of the connecting pipe 506, at this time, the rotating wheel 507 can be rotated, the rotating wheel 507 rotates to drive the screw rod 508 to rotate, under the driving of the screw rod 508, the push plate 509 is driven to move, and then the additive in the inner cavity of the fixing block 2 is extruded and pushed, the additive enters the inside of the casing 1 through the connecting pipe 506 and then is mixed into the conveyed petroleum, so that when the valve is opened, the additive can be added by directly rotating the rotating wheel 507 according to the requirement, a plurality of operation steps are not needed, and the use is more convenient.

Specifically, the driving mechanism 4 includes a mounting block 401, the mounting block 401 is fixedly connected to the fixed block 2, a hand wheel 402 is arranged on the mounting block 401, a connecting rod 403 is fixedly connected to the hand wheel 402, the connecting rod 403 extends into the mounting block 401 and is connected with a gear 404, a first spring 405 is wound on the connecting rod 403, and the first spring 405 is fixedly connected to the connecting rod 403; when the valve is used, the driving mechanism 4 is arranged in the fixed block 2, and the driving mechanism 4 is used, so that the control mechanism 3 can be conveniently protected, the control mechanism 3 is prevented from being touched by mistake due to some accident conditions, and the normal control of the valve on a pipeline is always ensured; namely: during the operation, the user can be manually held hand wheel 402 and press, then hand wheel 402 removes and drives connecting rod 403 and remove, and then drives gear 404 removes, first spring 405 is compressed simultaneously, until inside gear 404 block advances bull stick 301, at this moment, can be right hand wheel 402 rotates, then hand wheel 402 rotates convenient drive bull stick 301 and rotates, thereby convenient right bull stick 301 plays the effect of one deck insurance, avoids because some unexpected circumstances lead to bull stick 301 is touched by the mistake, has guaranteed the normal control of valve to the pipeline all the time.

Specifically, the closing mechanism 6 includes a rotating handle 601, the fixing block 2 is provided with the rotating handle 601, the rotating handle 601 is fixedly connected with a screw 602, the screw 602 is connected to the inside of the fixing block 2 in a threaded manner, and the screw 602 is fixedly connected with a seal plug 603; when the sealing device is used, according to actual conditions, a user can manually hold the rotating handle 601 and rotate the rotating handle 601, the rotating handle 601 rotates to drive the screw 602 to rotate, the screw 602 rotates, the sealing device continuously moves and stretches inside the fixed block 2, and then the sealing plug 603 is driven to move together until the sealing plug 603 blocks a through hole at the bottom end of the fixed block 2, and at the moment, an additive inside the fixed block 2 can be sealed to prevent the additive from flowing out through the connecting pipe 506.

Specifically, the sealing mechanism 7 includes a sealing seat 701, two sealing seats 701 are fixedly connected in the housing 1, the valve ball 302 is located between the two sealing seats 701, a rubber gasket 702 is installed in the sealing seat 701, the rubber gasket 702 abuts against the valve ball 302, a pressure pad 703 is fixedly connected to the rubber gasket 702, a fourth spring 704 is fixedly connected to the pressure pad 703, and the fourth spring 704 is fixedly connected to the inside of the sealing seat 701; when the valve ball sealing device is used, the sealing mechanism 7 is arranged in the shell 1, and the looseness of a sealing ring between the valve ball main body and the shell 1 can be reduced conveniently after long-term use through the sealing mechanism 7, so that the valve ball main body is better sealed, and the leakage probability is reduced; namely: during actual operation, through seal receptacle 701 and rubber seal pad 702 have realized right the separation of valve ball 302 both sides is sealed, and is further, through fourth spring 704, it is right all the time the conflict is kick-backed to pressure pad 703, and then right rubber seal pad 702 carries out the conflict of kick-backing, makes rubber seal pad 702 keeps conflict valve ball 302's state all the time to the convenience can alleviate after long-term the use the not hard up of rubber seal pad 702 between valve ball 302 and the casing 1, makes better right valve ball 302 seals, reduces the probability of revealing.

Specifically, the filtering mechanism 8 includes a filter screen 801, the filter screen 801 is disposed on the housing 1, a press block 802 is disposed on the filter screen 801, a push block 803 is fixedly connected to the press block 802, a fifth spring 804 is wound on the push block 803, the fifth spring 804 is fixedly connected to the press block 802, a fixture block 805 is slidably connected to the inside of the filter screen 801, a sixth spring 806 is wound on the fixture block 805, and the sixth spring 806 is fixedly connected to the fixture block 805; when the valve is used, the filtering mechanism 8 is arranged on the shell 1, and dirt particles generated in a petroleum pipeline due to long-term use can be conveniently filtered through the filtering mechanism 8, so that the dirt particles are prevented from entering the shell 1, and the normal use of the whole valve is ensured; namely: before use, a user can press the pressing blocks 802 on two sides of the filter screen 801 firstly, the pressing blocks 802 move to drive the pushing blocks 803 to move, the pushing blocks 803 squeeze and abut against the clamping blocks 805, the fifth springs 804 and the sixth springs 806 are compressed simultaneously until the clamping blocks 805 retract into the filter screen 801, then the filter screen 801 is placed in an opening at one end of the shell 1, then the pressing blocks 802 are released, and the clamping blocks 805 are clamped into the shell 1 under the action of resilience of the fifth springs 804 and the sixth springs 806, so that in the actual conveying process, dirt particles generated due to long-term use in a petroleum pipeline can be conveniently filtered, the dirt particles are prevented from entering the shell 1, and the normal use of the whole valve is ensured.

When the valve is used, firstly, before installation, a user can press the pressing blocks 802 on two sides of the filter screen 801 firstly, then the pressing blocks 802 move to drive the pushing blocks 803 to move, the pushing blocks 803 squeeze and abut against the clamping blocks 805, the fifth springs 804 and the sixth springs 806 are compressed simultaneously until the clamping blocks 805 retract into the filter screen 801, then the filter screen 801 is placed in an opening at one end of the shell 1, then the pressing of the pressing blocks 802 is released, the clamping blocks 805 can be clamped into the shell 1 under the action of the resilience force of the fifth springs 804 and the sixth springs 806, and then the shell 1 is installed on a pipeline, so that in the actual conveying process, dirt particles generated in a petroleum pipeline due to long-term use can be conveniently filtered, the dirt particles are prevented from entering the shell 1, and the normal use of the whole valve is ensured; in actual operation, a user can manually hold the handwheel 402 and press the handwheel 402, the handwheel 402 moves to drive the connecting rod 403 to move, and further drives the gear 404 to move, the first spring 405 is compressed simultaneously until the gear 404 is clamped inside the rotating rod 301, at this time, the handwheel 402 can be rotated, the handwheel 402 is rotated to conveniently drive the rotating rod 301 to rotate, the rotating rod 301 rotates to drive the valve ball 302 to rotate, after the valve ball 302 rotates ninety degrees, the valve channel is opened, and along with the rotation of the rotating rod 301, the resisting rod 501 can be driven to rotate, along with the rotation of the resisting rod 501, the pressed rod 502 can be continuously extruded and abutted, the pressed rod 502 is pressed to move, and further the sealing block 504 is pushed, the second spring 503 and the third spring 505 are compressed simultaneously until the through hole on the sealing block 504 is aligned with the position of the connecting pipe 506, at this time, the rotating wheel 507 can be rotated, and the rotating wheel 507 rotates to drive the screw rod 508, the push plate 509 is driven to move by the screw 508, so that the additive in the inner cavity of the fixed block 2 is extruded and pushed, the additive enters the shell 1 through the connecting pipe 506 and is mixed into the conveyed petroleum, and when the valve is opened, the additive can be added by directly rotating the rotating wheel 507 according to needs, a plurality of operation steps are not needed, and the use is more convenient; according to actual conditions, a user can manually hold the rotating handle 601 and rotate the rotating handle 601, the rotating handle 601 rotates to drive the screw 602 to rotate, the screw 602 rotates, and the screw continuously moves and stretches inside the fixed block 2 along with the rotation of the screw 602, so that the plug 603 is driven to move together until the plug 603 blocks the through hole at the bottom end of the fixed block 2, and at the moment, the additive inside the fixed block 2 can be sealed to prevent the additive from flowing out through the connecting pipe 506; in addition, through seal receptacle 701 and rubber packing pad 702, it is sealed to have realized the separation to valve ball 302 both sides, it is further, through fourth spring 704, can carry out the conflict of kick-backing to pressure pad 703 all the time, and then carry out the conflict of kick-backing to rubber packing pad 702, make rubber packing pad 702 remain the state of conflict valve ball 302 all the time, thereby the convenience can alleviate the not hard up of rubber packing pad 702 between valve ball 302 and the casing 1 after long-term the use, make better seal valve ball 302, reduce the probability of revealing.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The labor-saving valve is characterized by comprising a shell (1), wherein a fixed block (2) is fixedly connected to the shell (1), a control mechanism (3) is arranged on the shell (1) and the fixed block (2), a driving mechanism (4) is arranged on the fixed block (2), an adding mechanism (5) is arranged in the shell (1) and the fixed block (2), a closing mechanism (6) is arranged on the fixed block (2), a sealing mechanism (7) is arranged in the shell (1), and a filtering mechanism (8) is arranged on the shell (1);

the control mechanism (3) comprises a rotating rod (301), and the rotating rod (301) is rotatably connected in the fixed block (2);

the adding mechanism (5) comprises a resisting rod (501), the rotating rod (301) is fixedly connected with the resisting rod (501), a compression rod (502) is connected in the fixed block (2) in a sliding way, a second spring (503) is wound on the compression rod (502), the second spring (503) is fixedly connected with the pressure-bearing rod (502), the fixed block (2) is connected with a sealing block (504) in a sliding way, the sealing block (504) is fixedly connected with a third spring (505), the third spring (505) is fixedly connected inside the fixed block (2), a connecting pipe (506) is fixedly connected to the fixed block (2), the connecting pipe (506) extends into the shell (1), a rotating wheel (507) is arranged on the fixed block (2), a screw rod (508) is fixedly connected to the rotating wheel (507), the fixed block (2) is internally and slidably connected with a push plate (509), and the screw rod (508) is in threaded connection with the inside of the push plate (509).

2. A labor saving valve as defined in claim 1 wherein: the rotating rod (301) extends to the inside of the shell (1) and is connected with a valve ball (302), and the valve ball (302) is rotatably connected to the inside of the shell (1).

3. A labor saving valve as defined in claim 2 wherein: the valve ball (302) is in a hollow spherical shape, and the ends of the pressing rod (501) and the pressure receiving rod (502) are in a hemispherical shape.

4. A labor saving valve as defined in claim 1 wherein: actuating mechanism (4) are including settling block (401), fixedly connected with settles block (401) on fixed block (2), be equipped with hand wheel (402) on settling block (401), fixedly connected with connecting rod (403) on hand wheel (402), connecting rod (403) extend to settling block (401) inside and be connected with gear (404).

5. A labor saving valve as defined in claim 4 wherein: a first spring (405) is wound on the connecting rod (403), and the first spring (405) is fixedly connected to the connecting rod (403).

6. A labor saving valve as defined in claim 5 wherein: closing mechanism (6) are including turning handle (601), be equipped with turning handle (601) on fixed block (2), fixedly connected with screw rod (602) on turning handle (601), screw rod (602) threaded connection is inside fixed block (2), just fixedly connected with shutoff (603) on screw rod (602).

7. A labor saving valve as defined in claim 2 wherein: the sealing mechanism (7) comprises a sealing seat (701), two sealing seats (701) are fixedly connected in the shell (1), and the valve ball (302) is located between the two sealing seats (701).

8. A labor saving valve as defined in claim 7 wherein: install rubber packing pad (702) in seal receptacle (701), rubber packing pad (702) is contradicted in valve ball (302), fixedly connected with pressure pad (703) is gone up in rubber packing pad (702), fixedly connected with fourth spring (704) is gone up in pressure pad (703), fourth spring (704) fixed connection is inside seal receptacle (701).

9. A labor saving valve as defined in claim 1 wherein: the filtering mechanism (8) comprises a filter screen (801), and the shell (1) is provided with the filter screen (801).

10. A labor saving valve as defined in claim 9 wherein: be equipped with briquetting (802) on filter screen (801), fixedly connected with ejector pad (803) on briquetting (802), the winding has fifth spring (804) on ejector pad (803), fifth spring (804) fixed connection is in briquetting (802), the inside sliding connection of filter screen (801) has fixture block (805), the winding has sixth spring (806) on fixture block (805), sixth spring (806) fixed connection is in fixture block (805).