阅读说明：本技术 一种应用于平板隔断闸阀的密封圈结构 (Sealing ring structure applied to flat partition gate valve ) 是由 姚惟秀 吴成祝 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种应用于平板隔断闸阀的密封圈结构,具体涉及闸阀技术领域,包括阀座,所述阀座内部设有升降机构,所述升降机构包括螺纹杆,所述螺纹杆贯穿阀座顶部且与阀座螺纹连接,所述螺纹杆底部设有支撑板,所述支撑板与螺纹杆通管轴承活动连接,所述支撑板底部固定连接有弹簧。本发明通过在闸板顶部设置弹簧和支撑板,并且在闸板两侧设置气囊和第一密封圈,同时在闸板两侧设有限位板并且在支撑板两端底部设有推杆和推板,减小了闸板在上升和下降时由于滑动摩擦对第一密封圈和第二密封圈产生的损耗,并且在关闸时可通过气囊的挤压使得第一密封圈紧贴第二密封圈,使其拥有更好的密封效果。(The invention discloses a sealing ring structure applied to a flat partition gate valve, and particularly relates to the technical field of gate valves. According to the invention, the spring and the support plate are arranged at the top of the gate plate, the air bags and the first sealing rings are arranged at two sides of the gate plate, the limiting plates are arranged at two sides of the gate plate, the push rods and the push plates are arranged at the bottoms of two ends of the support plate, so that the loss of the first sealing ring and the second sealing ring caused by sliding friction when the gate plate ascends and descends is reduced, and the first sealing ring is tightly attached to the second sealing ring through the extrusion of the air bags when the gate plate is closed, so that the gate plate has a better sealing effect.)

1. The utility model provides a be applied to sealing washer structure of flat partition gate valve, includes disk seat (1), its characterized in that: a lifting mechanism is arranged inside the valve seat (1);

the lifting mechanism comprises a threaded rod (2), the threaded rod (2) penetrates through the top of the valve seat (1) and is in threaded connection with the valve seat (1), the bottom of the threaded rod (2) is provided with a supporting plate (3), the supporting plate (3) is movably connected with a through pipe bearing of the threaded rod (2), the bottom of the supporting plate (3) is fixedly connected with a spring (4), the bottom of the spring (4) is fixedly connected with a flashboard (5), the two sides of the flashboard (5) are both connected with first sealing rings (6) in a sliding way, the two sides of the flashboard (5) are both provided with air bags (7), limiting plates (8) are fixedly connected to both sides of the flashboard (5), a push rod (9) is fixedly connected to the bottom of the supporting plate (3), limiting plate (8) fixedly connected with push pedal (10) are run through to push rod (9) bottom, equal fixedly connected with passageway (11) in both sides around disk seat (1).

2. The sealing ring structure applied to the plate partition gate valve according to claim 1, wherein: the bottom end of the air bag (7) is fixedly connected with the valve seat (1), the top end of the air bag (7) is fixedly connected with the push plate (10), and the air bag (7) is in a half-full state.

3. The sealing ring structure applied to the plate partition gate valve according to claim 1, wherein: the number of the first sealing rings (6) is four, and the first sealing rings are distributed on two sides of the flashboard (5) in an even symmetrical mode.

4. The sealing ring structure applied to the plate partition gate valve according to claim 1, wherein: the sliding grooves are formed in the inner wall surfaces of the two sides of the valve seat (1), and the two ends of the flashboard (5) extend into the two sliding grooves respectively.

5. The sealing ring structure of claim 4, wherein the sealing ring structure comprises: and one sides of the limiting plate (8), the push plate (10) and the first sealing ring (6) are all contacted with the inner wall of one side of the sliding groove.

6. The sealing ring structure of claim 4, wherein the sealing ring structure comprises: and the front side wall and the rear side wall of each sliding chute are fixedly connected with second sealing rings (12).

7. The sealing ring structure of claim 6, wherein the sealing ring structure comprises: the cross sections of the first sealing ring (6) and the second sealing ring (12) are both arranged to be saw-toothed, and the first sealing ring (6) is matched with the second sealing ring (12).

8. The sealing ring structure applied to the plate partition gate valve according to claim 1, wherein: the springs (4) are arranged in a plurality of uniform equidistant distribution.

9. The sealing ring structure applied to the plate partition gate valve according to claim 1, wherein: the top end of the threaded rod (2) is fixedly connected with a rotating wheel.

Technical Field

The invention relates to the technical field of gate valves, in particular to a sealing ring structure applied to a flat partition gate valve.

Background

The gate valve is an opening and closing member gate plate, the movement direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled, the gate valve is sealed through the contact of a valve seat and the gate plate, metal materials can be deposited on a sealing surface to increase the wear resistance, the gate plate is provided with a rigid gate plate and an elastic gate plate, and the gate valve is divided into the rigid gate valve and the elastic gate valve according to the difference of the gate plates. However, in the current use of the rigid gate plate or the elastic gate plate, there still exist some problems, for example, when the current gate plate is lifted or lowered to perform opening and closing operations, the sealing ring on the gate plate is always tightly attached to the valve seat, so that the sealing ring is always subjected to sliding friction of the valve seat, and not only is the wear and tear on the sealing ring serious, but also the valve seat is still seriously worn.

Therefore, it is necessary to provide a seal ring structure for a plate partition gate valve.

Disclosure of Invention

In order to overcome the above-mentioned defects in the prior art, embodiments of the present invention provide a sealing ring structure applied to a flat partition gate valve, in which a spring and a supporting plate are disposed on the top of a gate plate, an air bag and a first sealing ring are disposed on two sides of the gate plate, a limiting plate is disposed on two sides of the gate plate, and a push rod and a push plate are disposed at the bottoms of two ends of the supporting plate, so that loss of the gate plate to the first sealing ring and the second sealing ring due to sliding friction when the gate plate ascends and descends is reduced, and the first sealing ring can be tightly attached to the second sealing ring by the extrusion of the air bag when the gate is closed, so that the first sealing ring has a better.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a be applied to sealing washer structure of flat partition gate valve, includes the disk seat, disk seat inside is equipped with elevating system.

The lifting mechanism comprises a threaded rod, the threaded rod penetrates through the top of the valve seat and is in threaded connection with the valve seat, a supporting plate is arranged at the bottom of the threaded rod and is movably connected with a threaded rod through pipe bearing, a spring is fixedly connected to the bottom of the supporting plate, a flashboard is fixedly connected to the bottom of the spring, first sealing rings are connected to two sides of the flashboard in a sliding mode, air bags are arranged on two sides of the flashboard, limiting plates are fixedly connected to two sides of the flashboard, a push rod is fixedly connected to the bottom of the supporting plate, a push plate is fixedly connected to the bottom end of the;

in a preferred embodiment, the bottom end of the air bag is fixedly connected with the valve seat, the top end of the air bag is fixedly connected with the push plate, and the air bag is in a half-filled state.

In a preferred embodiment, the number of the first sealing rings is four, and the first sealing rings are uniformly and symmetrically distributed on two sides of the gate plate.

In a preferred embodiment, the valve seat has sliding grooves formed on inner wall surfaces of two sides thereof, and the two ends of the shutter extend into the two sliding grooves.

In a preferred embodiment, the limit plate, the push plate and one side of the first sealing ring are all connected with the inner wall of one side of the chute.

In a preferred embodiment, a second sealing ring is fixedly connected to both the front side wall and the rear side wall of the two chutes.

In a preferred embodiment, the first sealing ring and the second sealing ring are arranged in a sawtooth shape in cross section, and the first sealing ring is matched with the second sealing ring.

In a preferred embodiment, the number of the springs is provided in a plurality and is distributed and arranged in a uniform and equidistant manner.

In a preferred embodiment, the number of the springs is provided in a plurality and is distributed and arranged in a uniform and equidistant manner.

The invention has the technical effects and advantages that:

1. the spring and the support plate are arranged at the top of the gate plate, the air bags and the first sealing rings are arranged on two sides of the gate plate, the limiting plates are arranged on two sides of the gate plate, and the push rods and the push plates are arranged at the bottoms of two ends of the support plate, so that when the gate plate is closed, the air bags are in an extrusion state, the first sealing rings are tightly attached to the second sealing rings;

2. all set up to the cockscomb structure through setting up first sealing washer and second sealing washer cross section for first sealing washer is inseparabler with the contact of second sealing washer when closing the floodgate, increases its area of contact simultaneously, compares with prior art, and when closing the floodgate, first sealing washer and second sealing washer will receive littleer pressure owing to possess bigger area of contact, thereby make it possess longer life.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a side sectional view of the present invention.

Fig. 3 is a top view cross-section of the present invention.

FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention.

FIG. 5 is a schematic view of the bladder of the present invention being deflated.

The reference signs are: 1 valve seat, 2 threaded rods, 3 supporting plates, 4 springs, 5 flashboards, 6 first sealing rings, 7 air bags, 8 limiting plates, 9 push rods, 10 push plates, 11 channels and 12 second sealing rings.

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.

The invention provides a sealing ring structure applied to a flat partition gate valve as shown in figures 1-5, which comprises a valve seat 1, wherein a lifting mechanism is arranged in the valve seat 1;

the lifting mechanism comprises a threaded rod 2, the threaded rod 2 penetrates through the top of a valve seat 1 and is in threaded connection with the valve seat 1, a supporting plate 3 is arranged at the bottom of the threaded rod 2, the supporting plate 3 is movably connected with a through pipe bearing of the threaded rod 2, a spring 4 is fixedly connected to the bottom of the supporting plate 3, a flashboard 5 is fixedly connected to the bottom of the spring 4, first sealing rings 6 are slidably connected to two sides of the flashboard 5 respectively, airbags 7 are arranged on two sides of the flashboard 5 respectively, limiting plates 8 are fixedly connected to two sides of the flashboard 5 respectively, a push rod 9 is fixedly connected to the bottom of the supporting plate 3, a push plate 10 is fixedly connected to the bottom end of the push rod;

the bottom end of the air bag 7 is fixedly connected with the valve seat 1, the top end of the air bag 7 is fixedly connected with the push plate 10, and the air bag 7 is in a half-full state;

the number of the first sealing rings 6 is four, and the first sealing rings are uniformly and symmetrically distributed on two sides of the flashboard 5;

the inner wall surfaces of two sides of the valve seat 1 are respectively provided with a sliding chute, and two ends of the flashboard 5 respectively extend into the two sliding chutes;

one sides of the limiting plate 8, the push plate 10 and the first sealing ring 6 are all contacted with the inner wall of one side of the sliding chute;

the front side wall and the rear side wall of each of the two sliding chutes are fixedly connected with second sealing rings 12;

the cross sections of the first sealing ring 6 and the second sealing ring 12 are both arranged in a sawtooth shape, and the first sealing ring 6 is matched with the second sealing ring 12;

the springs 4 are arranged in a plurality and are distributed and arranged in an even and equidistant manner;

the top end of the threaded rod 2 is fixedly connected with a rotating wheel.