阅读说明：本技术 一种防外漏自密封阀门 (Anti-leakage self-sealing valve ) 是由 刘燕清 于 2020-12-29 设计创作，主要内容包括：本发明公开了一种防外漏自密封阀门,其结构包括：阀体、螺栓、螺母、阀盖、手柄、阀杆、活塞,阀体顶部通过螺栓与阀盖相连接,阀盖顶部连接有螺母,活塞设在阀体内并与阀杆底部相连接,阀杆顶部贯穿螺母并连接有手柄,活塞包括固定块和活动块,固定块顶部与阀杆相连接,固定块底部与活动块相连接,固定块包括块体、升降腔、滑槽、滑块、支杆、弹簧件、拉绳、衔接杆、升降块,块体中间设有升降腔,升降腔的两侧分别设有滑槽,滑槽设在块体底部,本发明的有益效果是：通过活塞的设计,使活塞的下部能够在关闭时具有向下移动的空间,利用重力的下坠作用能够对阀体的通孔进行堵住,避免出现外漏。(The invention discloses an anti-leakage self-sealing valve, which structurally comprises: the valve body, the bolt, the nut, the valve gap, the handle, the valve rod, the piston, the valve body top is connected with the valve gap through the bolt, the valve gap top is connected with the nut, the piston is established in the valve body and is connected with the valve rod bottom, the valve rod top runs through the nut and is connected with the handle, the piston includes fixed block and movable block, the fixed block top is connected with the valve rod, the fixed block bottom is connected with the movable block, the fixed block includes the block, go up and down the chamber, the spout, the slider, branch, the spring part, the stay cord, the link rod, the elevator, be equipped with the lift chamber in the middle of the block, the both sides in lift chamber are: through the design of piston, the lower part that makes the piston can have the space of lapse when closing, utilizes the tenesmus effect of gravity to plug up the through-hole of valve body, avoids appearing leaking outward.)

1. The utility model provides a prevent leaking self sealss valve, its structure includes: valve body (1), bolt (2), nut (3), valve gap (4), handle (5), valve rod (6), piston (7), its characterized in that: the valve body (1) top is connected with valve gap (4) through bolt (2), valve gap (4) top is connected with nut (3), piston (7) are established in valve body (1) and are connected with valve rod (6) bottom, nut (3) are run through and handle (5) are connected to valve rod (6) top.

2. The leak-proof self-sealing valve as claimed in claim 1, wherein: the piston (7) comprises a fixed block (a) and a movable block (b), the top of the fixed block (a) is connected with the valve rod (6), and the bottom of the fixed block (a) is connected with the movable block (b).

3. The leak-proof self-sealing valve as claimed in claim 2, wherein: the fixed block (a) comprises a block body (a0), a lifting cavity (a1), a sliding groove (a2), a sliding block (a3), a support rod (a4), a spring piece (a5), a pulling rope (a6), a linking rod (a7) and a lifting block (a8), wherein the lifting cavity (a1) is arranged in the middle of the block body (a0), the sliding groove (a2) is arranged on each of two sides of the lifting cavity (a1), the sliding groove (a2) is arranged at the bottom of the block body (a0), the sliding block (a2) is arranged in the sliding groove (a2), the support rod (a2) is connected to the bottom of the sliding block (a2), the lifting block (a2) is provided with the lifting block (a2), the bottom of the lifting block (a2) is connected with the linking rod (a2), the spring piece (a2) is sleeved on the linking rod (a2), and two sides of the spring piece (a2) are respectively connected with the sliding block (.

4. The leak-proof self-sealing valve as claimed in claim 3, wherein: the upper end and the lower end of the spring piece (a5) are respectively connected with an upper circular ring (a51) and a lower circular ring (a52), support plates (a53) are respectively arranged on two sides of the upper circular ring (a51), and the support plates (a53) are connected with a pull rope (a 6).

5. The leak-proof self-sealing valve as claimed in claim 2, wherein: the movable block (b) comprises a body (b0), a connecting channel (b1), a pneumatic cavity (b2), a limiting block (b3), a movable groove (b4), an auxiliary pneumatic cavity (b5), an auxiliary piston (b6), a piston rod (b7), an elastic piece (b8), a movable block (b9) and a push-out spring (b10), wherein the pneumatic cavity (b2) is arranged on the left side and the right side of the body (b0), the limiting block (b3) is connected in the pneumatic cavity (b2), the pneumatic cavity (b2) is communicated with the auxiliary pneumatic cavity (b5) through the connecting channel (b1), the auxiliary pneumatic cavity (b5) is arranged on the upper portion of the movable block (b), the movable groove (b4) is arranged on two sides of the top of the movable block (b), the movable groove (b4) is arranged on the side face of the auxiliary pneumatic cavity (b5), the auxiliary piston (b5) is arranged in the pneumatic cavity (b5), and the auxiliary piston rod (b5) is connected with the piston rod (b 36, a moving block (b9) is arranged in the air pressure cavity (b2), the inner end of the moving block (b9) is connected with the inside of the air pressure cavity (b2) through a push-out spring (b10), and the outer side of the moving block (b9) is connected with the inner wall of the air pressure cavity (b2) through an elastic piece (b 8).

6. The leak-proof self-sealing valve as claimed in claim 3, wherein: the bottom of the supporting rod (a4) is arranged in the movable groove (b 4).

7. The leak-proof self-sealing valve as claimed in claim 3, wherein: the bottom of the connecting rod (a7) is connected with the top of the movable block (b).

8. The leak-proof self-sealing valve as claimed in claim 3, wherein: the side surface of the lifting block (a8) is connected with the inner wall of the lifting cavity (a1) in a sliding way through a ball bearing.

Technical Field

The invention relates to the field of valves, in particular to an anti-leakage self-sealing valve.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and is also divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, non-standard customized valve materials and the like according to the material.

The valve in the prior art is opened and closed by rotation, and the rotation angle is limited due to the matching of the screw and the nut, and the sealing piston is worn for a long time, so that the sealing performance is reduced, and the leakage phenomenon is easy to occur.

Disclosure of Invention

The invention mainly aims to overcome the defects in the prior art and provide an anti-leakage self-sealing valve.

The invention is realized by adopting the following technical scheme: the utility model provides a prevent leaking self sealss valve, its structure includes: the valve comprises a valve body, a bolt, a nut, a valve cover, a handle, a valve rod and a piston, wherein the top of the valve body is connected with the valve cover through the bolt, the top of the valve cover is connected with the nut, the piston is arranged in the valve body and is connected with the bottom of the valve rod, and the top of the valve rod penetrates through the nut and is connected with the handle.

As optimization, the piston comprises a fixed block and a movable block, the top of the fixed block is connected with the valve rod, and the bottom of the fixed block is connected with the movable block.

As optimizing, the fixed block includes block, lift chamber, spout, slider, branch, spring part, stay cord, links up pole, elevator, be equipped with the lift chamber in the middle of the block, the both sides in lift chamber are equipped with the spout respectively, the spout is established in the block bottom, be equipped with the slider in the spout, the slider bottom is connected with branch, the lift intracavity is equipped with the elevator, the elevator bottom is connected with the pole that links up, the cover is equipped with the spring part on linking the pole, the both sides of spring part are connected with the slider through the stay cord respectively.

Preferably, the upper end and the lower end of the spring part are respectively connected with an upper circular ring and a lower circular ring, support plates are respectively arranged on two sides of the upper circular ring, and the support plates are connected with the pull rope.

Preferably, the movable block comprises a body, a connecting channel, a pneumatic cavity, a limiting block, a movable groove, an auxiliary pneumatic cavity, an auxiliary piston, a piston rod, an elastic part, a movable block and a push-out spring, the pneumatic cavity is arranged on the left side and the right side of the body respectively, the limiting block is connected in the pneumatic cavity, the pneumatic cavity is communicated with the auxiliary pneumatic cavity through the connecting channel, the auxiliary pneumatic cavity is arranged on the upper portion of the movable block, the movable groove is arranged on the two sides of the top of the movable block respectively, the movable groove is arranged on the side face of the auxiliary pneumatic cavity, the auxiliary piston is arranged in the auxiliary pneumatic cavity and connected with the piston rod, the movable block is arranged in the pneumatic cavity, the inner end of the movable block is connected with the inner portion of the pneumatic cavity through the push.

Preferably, the bottom of the support rod is arranged in the movable groove.

Preferably, the bottom of the connecting rod is connected with the top of the movable block.

Preferably, the side surface of the lifting block is in sliding connection with the inner wall of the lifting cavity through a ball.

Preferably, the top of the movable block is in a conical shape.

Preferably, the outer end of the moving block is triangular.

Advantageous effects

When the invention is opened, the valve rod is driven by the rotating handle to move upwards to communicate the two ends of the valve body, after the piston moves upwards, the moving blocks at the two sides of the moving block are pushed out under the action of the pushing spring, so that the auxiliary piston and the piston rod are driven to move inwards by air pressure, the thrust of the supporting rod is lost, the spring part can restore the elasticity to push the lifting block upwards, so that the moving block can be attached to the fixed block, when the valve rod is closed, the valve rod is driven by the rotating handle to move downwards, at the moment, the moving blocks at the two sides of the moving block are pushed inwards, the auxiliary piston and the piston rod are pushed outwards by air pressure, so that the piston rod pushes the supporting plate outwards, the sliding block pulls the pull rope to compress the upper ring downwards, the spring part is compressed, the lifting block cannot be pushed upwards, therefore, the moving block can have downward power under the action of gravity, the movable block can automatically fall to block the through hole, so that leakage is prevented.

Compared with the prior art, the invention has the beneficial effects that: through the design of piston, the lower part that makes the piston can have the space of lapse when closing, utilizes the tenesmus effect of gravity to plug up the through-hole of valve body, avoids appearing leaking outward.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of an anti-leakage self-sealing valve of the present invention.

Fig. 2 is a schematic structural view of the piston of the present invention.

Fig. 3 is a schematic view of the internal structure of the fixing block of the present invention.

Fig. 4 is a schematic structural view of the spring member of the present invention.

Fig. 5 is a schematic view of the internal structure of the movable block of the present invention.

In the figure: the valve comprises a valve body 1, a bolt 2, a nut 3, a valve cover 4, a handle 5, a valve rod 6, a piston 7, a fixed block a, a movable block b, a block body a0, a lifting cavity a1, a sliding groove a2, a sliding block a3, a supporting rod a4, a spring piece a5, a pulling rope a6, a connecting rod a7, a lifting block a8, an upper circular ring a51, a lower circular ring a52, a supporting plate a53, a body b0, a connecting channel b1, a pneumatic cavity b2, a limiting block b3, a movable groove b4, a secondary pneumatic cavity b5, a secondary piston b6, a piston rod b7, an elastic piece b8, a movable block b9 and a push-out spring b 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-5, the present invention provides a technical solution of an anti-leakage self-sealing valve: the structure includes: the valve comprises a valve body 1, a bolt 2, a nut 3, a valve cover 4, a handle 5, a valve rod 6 and a piston 7, wherein the top of the valve body 1 is connected with the valve cover 4 through the bolt 2, the top of the valve cover 4 is connected with the nut 3, the piston 7 is arranged in the valve body 1 and is connected with the bottom of the valve rod 6, the top of the valve rod 6 penetrates through the nut 3 and is connected with the handle 5, the piston 7 comprises a fixed block a and a movable block b, the top of the fixed block a is connected with the valve rod 6, the bottom of the fixed block a is connected with the movable block b, the fixed block a comprises a block body a0, a lifting cavity a1, a sliding chute a2, a sliding block a3, a supporting rod a4, a spring part a5, a pulling rope 6, a connecting rod a7 and a lifting block a8, a lifting cavity a1 is arranged in the middle of the block body a0, sliding chutes a2 are respectively arranged on two sides of the, the bottom of the sliding block a is connected with a supporting rod a, a lifting block a is arranged in the lifting cavity a, the bottom of the lifting block a is connected with a connecting rod a, a spring part a is sleeved on the connecting rod a, two sides of the spring part a are respectively connected with the sliding block a through a pull rope a, the upper end and the lower end of the spring part a are respectively connected with an upper circular ring a and a lower circular ring a, two sides of the upper circular ring a are respectively provided with a supporting plate a, the supporting plates a are connected with the pull rope a, the movable block b comprises a body b, a connecting channel b, a pneumatic cavity b, a limiting block b, a movable groove b, an auxiliary pneumatic cavity b, an auxiliary piston b, a piston rod b, an elastic part b, a movable block b and a push-out spring b, the left side and the right side of the body b are respectively provided with a pneumatic cavity b, the limiting block b is connected, the auxiliary air pressure cavity b5 is arranged at the upper part of the movable block b, two sides of the top of the movable block b are respectively provided with a movable groove b4, the movable groove b4 is arranged on the side surface of the auxiliary air pressure cavity b5, an auxiliary piston b6 is arranged in the auxiliary air pressure cavity b5, the auxiliary piston b6 is connected with the piston rod b7, a moving block b9 is arranged in the air pressure chamber b2, the inner end of the moving block b9 is connected with the inner part of the pneumatic chamber b2 through a push-out spring b10, the outer side of the moving block b9 is connected with the inner wall of the pneumatic chamber b2 through an elastic piece b8, the bottom of the supporting rod a4 is arranged in the movable groove b4, the bottom of the connecting rod a7 is connected with the top of the movable block b, the side surface of the lifting block a8 is connected with the inner wall of the lifting cavity a1 in a sliding way through a ball, so that the lifting is smoother, the top of the movable block b is in a conical shape, so that the through hole of the valve body 1 is conveniently plugged when looseness occurs, and the outer end of the movable block b9 is in a triangular shape, so that the movable block b is conveniently pushed inwards.

The working principle is as follows: when the valve is opened, the valve rod 6 is driven by the rotating handle 5 to move the piston 7 upwards, so that two ends of the valve body 1 are communicated, after the piston 7 moves upwards, the moving blocks b9 on two sides of the moving block b are pushed out under the action of the pushing-out spring b10, the auxiliary piston b6 and the piston rod b7 are driven to move inwards through air pressure, the thrust of the supporting rod a4 is lost, the spring element a5 can recover the elastic force to push the lifting block a8 upwards, and the moving block b can be attached to the fixing block a.

Example 2

Referring to fig. 1-5, the present invention provides a technical solution of an anti-leakage self-sealing valve: the structure includes: the valve comprises a valve body 1, a bolt 2, a nut 3, a valve cover 4, a handle 5, a valve rod 6 and a piston 7, wherein the top of the valve body 1 is connected with the valve cover 4 through the bolt 2, the top of the valve cover 4 is connected with the nut 3, the piston 7 is arranged in the valve body 1 and is connected with the bottom of the valve rod 6, the top of the valve rod 6 penetrates through the nut 3 and is connected with the handle 5, the piston 7 comprises a fixed block a and a movable block b, the top of the fixed block a is connected with the valve rod 6, the bottom of the fixed block a is connected with the movable block b, the fixed block a comprises a block body a0, a lifting cavity a1, a sliding chute a2, a sliding block a3, a supporting rod a4, a spring part a5, a pulling rope 6, a connecting rod a7 and a lifting block a8, a lifting cavity a1 is arranged in the middle of the block body a0, sliding chutes a2 are respectively arranged on two sides of the, the bottom of the sliding block a is connected with a supporting rod a, a lifting block a is arranged in the lifting cavity a, the bottom of the lifting block a is connected with a connecting rod a, a spring part a is sleeved on the connecting rod a, two sides of the spring part a are respectively connected with the sliding block a through a pull rope a, the upper end and the lower end of the spring part a are respectively connected with an upper circular ring a and a lower circular ring a, two sides of the upper circular ring a are respectively provided with a supporting plate a, the supporting plates a are connected with the pull rope a, the movable block b comprises a body b, a connecting channel b, a pneumatic cavity b, a limiting block b, a movable groove b, an auxiliary pneumatic cavity b, an auxiliary piston b, a piston rod b, an elastic part b, a movable block b and a push-out spring b, the left side and the right side of the body b are respectively provided with a pneumatic cavity b, the limiting block b is connected, the auxiliary air pressure cavity b5 is arranged at the upper part of the movable block b, two sides of the top of the movable block b are respectively provided with a movable groove b4, the movable groove b4 is arranged on the side surface of the auxiliary air pressure cavity b5, an auxiliary piston b6 is arranged in the auxiliary air pressure cavity b5, the auxiliary piston b6 is connected with the piston rod b7, a moving block b9 is arranged in the air pressure chamber b2, the inner end of the moving block b9 is connected with the inner part of the pneumatic chamber b2 through a push-out spring b10, the outer side of the moving block b9 is connected with the inner wall of the pneumatic chamber b2 through an elastic piece b8, the bottom of the supporting rod a4 is arranged in the movable groove b4, the bottom of the connecting rod a7 is connected with the top of the movable block b, the side surface of the lifting block a8 is connected with the inner wall of the lifting cavity a1 in a sliding way through a ball, so that the lifting is smoother, the top of the movable block b is in a conical shape, so that the through hole of the valve body 1 is conveniently plugged when looseness occurs, and the outer end of the movable block b9 is in a triangular shape, so that the movable block b is conveniently pushed inwards.

The working principle is as follows: when the valve is closed, the valve rod 6 is driven by the rotating handle 5 to move the piston 7 downwards, at the moment, the moving blocks b9 on two sides of the moving block b are pushed inwards, the auxiliary piston b6 and the piston rod b7 are pushed outwards through air pressure, so that the piston rod b7 pushes the support plate a53 to move outwards, the sliding block a3 pulls the pull rope a6 to compress the upper circular ring a51 downwards, the spring element a5 is compressed, the lifting block a8 cannot be jacked up, the moving block b can have downward power under the action of gravity, and when the piston 7 and the valve body 1 are loosened, the moving block b can automatically fall down to block the through hole to prevent outward leakage.

Compared with the prior art, the invention has the technical progress that: through the design of piston, the lower part that makes the piston can have the space of lapse when closing, utilizes the tenesmus effect of gravity to plug up the through-hole of valve body, avoids appearing leaking outward.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.