阅读说明：本技术 一种高密封弹性座封闸阀 (High-sealing elastic seat seal gate valve ) 是由 姚惟秀 吴成祝 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种高密封弹性座封闸阀,具体涉及闸阀领域,包括阀体,所述阀体内部设有阀板,所述阀板顶部设有阀杆,所述阀杆底端与阀体之间设有密封件,密封件包括底座和密封垫,所述底座中部设有连接筒,所述连接筒与底座一体成型,所述连接筒内壁设有调节槽,所述密封垫上设有转向槽。本发明通过密封件对阀板的位置限定,关闭阀板时,仅需经阀杆顺时针带动阀板转动,定位杆在调节槽位置转动至相对位置的最低处,从而带动主体板在转向槽内的相对位置高度的降低,主动板底端挤压密封垫,既保证了关闭状态下的密封性,又可方便使用至确定开闭两种状态的最佳旋转角度,仅需顺、逆向转动至无法继续转动即可,方便操作且辨识度强。(The invention discloses a high-sealing elastic seat seal gate valve, and particularly relates to the field of gate valves. The position of the valve plate is limited by the sealing element, when the valve plate is closed, the valve plate is driven to rotate clockwise only through the valve rod, the positioning rod rotates to the lowest position of the relative position in the adjusting groove, so that the height of the relative position of the main body plate in the steering groove is reduced, the sealing gasket is extruded by the bottom end of the driving plate, the sealing performance in the closed state is guaranteed, the sealing device can be conveniently used until the optimal rotation angle of the two states of opening and closing is determined, the sealing device only needs to rotate clockwise and reversely until the sealing device cannot rotate continuously, the operation is convenient, and the identification degree is strong.)

1. The utility model provides a high sealed elasticity seat seals gate valve which characterized in that: the valve comprises a valve body (1), wherein a valve plate (2) is arranged in the valve body (1), a valve rod (3) is arranged at the top of the valve plate (2), and a sealing element (4) is arranged between the bottom end of the valve rod (3) and the valve body (1);

the valve plate (2) comprises a main body plate (21), one end of the main body plate (21) is provided with a connector (22), the other end of the main body plate (21) is provided with a first adjusting column (23), the first adjusting column (23) and the connector (22) are both fixedly connected with the main body plate (21), one end of the first adjusting column (23) is provided with a second connecting column (24), two sides of the second adjusting column are both provided with positioning rods (25), the positioning rods (25) and the first adjusting column (23) are both fixedly connected with the second adjusting column, and the outer wall of the main body plate (21) is provided with a protection pad (26);

sealing member (4) are including base (41) and sealed pad (42), base (41) middle part is equipped with connecting cylinder (43), connecting cylinder (43) and base (41) integrated into one piece, connecting cylinder (43) inner wall is equipped with adjustment tank (44), it turns to groove (45) to be equipped with on sealed pad (42).

2. A high seal elastomeric seating gate valve as claimed in claim 1, wherein: the improved valve is characterized in that a material channel (11) is arranged inside the valve body (1), an adjusting cavity (12) is arranged at the joint of the valve body (1) and the valve rod (3), a positioning convex strip (13) is arranged on the inner wall of the material channel (11), and the positioning convex strip (13) and the valve body (1) are integrally cast and formed.

3. A high seal elastomeric seating gate valve as claimed in claim 1, wherein: connecting cylinder (43) inner wall and first regulation post (23) outer wall all are equipped with the screw thread, first regulation post (23) and connecting cylinder (43) threaded connection.

4. A high seal elastomeric seating gate valve as claimed in claim 1, wherein: the adjusting groove (44) is obliquely arranged, and the positioning rod (25) is arranged corresponding to the adjusting groove (44).

5. A high seal elastomeric seating gate valve as claimed in claim 1, wherein: the adjusting groove (44) and the steering groove (45) are both designed in a 90-degree arc shape along the central point of the base (41), the sealing gasket (42) is bonded with the base (41), and the base (41) is fixedly connected with the valve body (1).

6. A high seal elastomeric seating gate valve as claimed in claim 2, wherein: the protective pad (26) and the sealing pad (42) are both made of rubber materials, and the outer diameter of the main body plate (21) is matched with the inner diameter of the material channel (11).

7. A high seal elastomeric seating gate valve as claimed in claim 1, wherein: the valve rod (3) is connected with the main body plate (21) through a connector (22).

8. A high seal elastomeric seating gate valve as claimed in claim 2, wherein: the cross-sectional shapes of the joint of the material channel (11) and the adjusting cavity (12) and the connector (22) are all set to be inverted trapezoids, and the joint of the material channel (11) and the adjusting cavity (12) is matched with the connector (22).

Technical Field

The invention relates to the technical field of gate valves, in particular to a high-sealing elastic seat seal gate valve.

Background

The opening and closing part of the elastic seat seal gate valve is a gate plate, the moving direction of the gate plate is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. The gate has two sealing surfaces, and the two sealing surfaces of the gate valve in the most common mode form a wedge shape and a wedge angle which are different along with the parameters of the valve. The gate plate of the wedge gate valve can be made into a whole, namely a rigid gate plate; the gate plate can also be made into a gate plate capable of generating micro deformation so as to improve the manufacturability of the gate plate and compensate the deviation of the angle of the sealing surface in the machining process, and the gate plate is called an elastic gate plate. The elastic seat seal gate valve is also called a lifting rod gate valve (also called an open rod gate valve). Usually, the lifting rod is provided with trapezoidal threads, and the rotating motion is changed into the linear motion, namely the operation torque is changed into the operation thrust force through a nut at the top end of the valve and a guide groove on the valve body. When the valve is opened, the passage of fluid is completely open when the gate plate is lifted to a height equal to 1:1 times the gate diameter, but this position is not monitored during operation. In actual use, the vertex of the valve rod is used as a mark, namely, the opening and closing position is used as the full opening position. To account for the occurrence of lock-up due to temperature changes, the valve was opened to the top position and then reversed 1/2-1 cycles to assume the fully open valve position. Thus, the fully open position of the valve is determined by the position (i.e., stroke) of the gate.

The existing elastic seat seal gate valve is often influenced by the fact that the rotation angle is not in place to transfer materials at the maximum flow rate in the use process; or the valve plate is not completely closed, so that leakage of partial materials is caused, and a user can not observe whether the position adjustment is in place when the valve plate is controlled externally, so that great inconvenience is brought to the user.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a high-sealing elastic seat-sealed gate valve, in which a valve rod clockwise drives a valve plate to rotate, a positioning rod rotates to the lowest position of a relative position in an adjusting groove, so as to drive the height of the relative position of a main body plate in a steering groove to be reduced, and the bottom end of a driving plate extrudes a sealing gasket, thereby ensuring the sealing performance in a closed state, facilitating the use to determine the optimal rotation angle in two states of opening and closing, and only needing to rotate clockwise and counter-clockwise until the gate valve cannot continue to rotate.

In order to achieve the purpose, the invention provides the following technical scheme: a high-sealing elastic seat seal gate valve comprises a valve body, wherein a valve plate is arranged inside the valve body, a valve rod is arranged at the top of the valve plate, and a sealing element is arranged between the bottom end of the valve rod and the valve body;

the valve plate comprises a main body plate, one end of the main body plate is provided with a connector, the other end of the main body plate is provided with a first adjusting column, the first adjusting column and the connector are fixedly connected with the main body plate, one end of the first adjusting column is provided with a second connecting column, two sides of the second adjusting column are provided with positioning rods, the positioning rods and the first adjusting column are fixedly connected with the second adjusting column, and the outer wall of the main body plate is provided with a protective pad;

the sealing element comprises a base and a sealing gasket, a connecting cylinder is arranged in the middle of the base and integrally formed with the base, an adjusting groove is formed in the inner wall of the connecting cylinder, and a steering groove is formed in the sealing gasket.

In a preferred embodiment, a material channel is arranged inside the valve body, an adjusting cavity is arranged at the joint of the valve body and the valve rod, a positioning convex strip is arranged on the inner wall of the material channel, and the positioning convex strip and the valve body are integrally cast and formed.

In a preferred embodiment, the inner wall of the connecting cylinder and the outer wall of the first adjusting column are both provided with threads, and the first adjusting column is in threaded connection with the connecting cylinder.

In a preferred embodiment, the adjusting groove is arranged obliquely, and the positioning rod is arranged corresponding to the position of the adjusting groove.

In a preferred embodiment, the adjusting groove and the steering groove are both designed in a 90-degree arc shape along the center point of the base, the sealing gasket is bonded with the base, and the base is fixedly connected with the valve body.

In a preferred embodiment, the protection pad and the sealing pad are both made of rubber material, and the outer diameter of the main body plate is matched with the inner diameter of the material channel.

In a preferred embodiment, the valve stem is connected to the main body plate by a connector.

In a preferred embodiment, the cross-sectional shapes of the joint of the material channel and the adjusting cavity and the joint are both inverted trapezoids, and the joint of the material channel and the adjusting cavity is matched with the joint.

The invention has the technical effects and advantages that:

1. the position of the valve plate is limited by the sealing element, when the valve plate is closed, the valve plate is driven to rotate clockwise only through the valve rod, the positioning rod rotates to the lowest position of the relative position in the adjusting groove, so that the height of the relative position of the main body plate in the steering groove is reduced, the sealing gasket is extruded by the bottom end of the driving plate, the sealing performance in the closed state is guaranteed, the sealing gasket can be conveniently used until the optimal rotation angle of the two states of opening and closing is determined, the sealing gasket can be conveniently operated only by clockwise and reversely rotating until the sealing gasket cannot continuously rotate, and the identification degree is strong;

2. according to the invention, the valve plate is blocked by the positioning convex strips, when the valve plate is in a closed state, the sealing performance of the contact position of the main body plate and the positioning convex strips can be ensured by the main rubber protective pad, the leakage of materials from the gap between the main body plate and the material channel is avoided when the valve plate is in the closed state, the arrangement of the positioning convex strips not only limits the rotation direction of the valve plate, but also further improves the sealing performance of the valve plate in the closed state, and the trapezoidal design of the connector matched with the shape of the adjusting cavity can match the large caliber at the top of the connector by the narrow caliber at the bottom of the adjusting cavity in the closed state of the valve plate, so that the sealing performance of the connection part of the material channel and the adjusting cavity can be effectively ensured at multiple angles, and the service life of the gate valve is prolonged.

Drawings

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

Fig. 2 is a schematic view of the sealing member of the present invention.

Fig. 3 is a schematic cross-sectional view of the sealing member of the present invention.

Fig. 4 is a schematic view of the valve plate structure of the present invention.

FIG. 5 is an enlarged view of portion B of FIG. 4 according to the present invention.

FIG. 6 is an enlarged view of portion A of FIG. 1 according to the present invention.

FIG. 7 is a schematic cross-sectional view of the joint between the protection pad and the valve body according to the present invention.

The reference signs are: the valve comprises a valve body 1, a material channel 11, an adjusting cavity 12, a positioning convex strip 13, a valve plate 2, a main body plate 21, a connector 22, a first adjusting column 23, a second connecting column 24, a positioning rod 25, a protective pad 26, a valve rod 3, a sealing element 4, a base 41, a sealing pad 42, a connecting cylinder 43, an adjusting groove 44 and a steering groove 45.

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 high-sealing elastic seat seal gate valve, which comprises a valve body 1, wherein a valve plate 2 is arranged in the valve body 1, a valve rod 3 is arranged at the top of the valve plate 2, a sealing element 4 is arranged between the bottom end of the valve rod 3 and the valve body 1, the valve plate 2 comprises a main body plate 21, one end of the main body plate 21 is provided with a connector 22, the other end of the main body plate 21 is provided with a first adjusting column 23, the first adjusting column 23 and the connector 22 are both fixedly connected with the main body plate 21, one end of the first adjusting column 23 is provided with a second connecting column 24, two sides of the second adjusting column are both provided with positioning rods 25, the positioning rods 25 and the first adjusting column 23 are both fixedly connected with the second adjusting column, the outer wall of the main body plate 21 is provided with a protective pad 26, the sealing element 4 comprises a base 41 and a sealing pad 42, the middle part of the, the connecting cylinder 43 inner wall is equipped with adjustment tank 44, it turns to in the groove 45 to be equipped with on sealed pad 42, connecting cylinder 43 inner wall and first regulation post 23 outer wall all are equipped with the screw thread, first regulation post 23 and connecting cylinder 43 threaded connection, adjustment tank 44 slope sets up, locating lever 25 corresponds the setting with adjustment tank 44 position, adjustment tank 44 and turn to groove 45 all are 90 degrees circular-arc designs along base 41 central point, sealed pad 42 bonds with base 41, fixed connection between base 41 and valve body 1.

As shown in fig. 1 to 5, the embodiment specifically is as follows: when the valve rod 3 drives the main body plate 21 to rotate counterclockwise in the material channel 11, the positioning rod 25 rotates angularly at the position of the adjusting groove 44 to drive the whole position of the valve plate 2 to lift relatively, and drive the main body plate 21 to rotate angularly in the turning groove 45, because the turning groove 45 limits the rotation angle of the main body plate 21 and the adjusting groove 44 limits the rotation angle of the positioning rod 25, the maximum rotation angle of the valve plate 2 in the material channel 11 is limited to 90 degrees, when the valve rod 3 drives the valve plate 2 to rotate counterclockwise to the position incapable of rotation, the material flow at the position of the material channel 11 is maximum, and when the valve plate 2 is closed, the valve plate 2 is driven to rotate clockwise by the valve rod 3, the positioning rod 25 rotates to the lowest position of the relative position at the position of the adjusting groove 44, thereby driving the height of the relative position of the main body plate 21 in the turning groove 45 to be reduced, the sealing performance under the closed state is guaranteed, the device can be conveniently used until the optimal rotation angle of the two states of opening and closing is determined, and the device only needs to rotate clockwise and anticlockwise until the device cannot rotate continuously.

The valve comprises a valve body 1 and is characterized in that a material channel 11 is arranged in the valve body 1, an adjusting cavity 12 is arranged at the joint of the valve body 1 and a valve rod 3, a positioning convex strip 13 is arranged on the inner wall of the material channel 11, the positioning convex strip 13 and the valve body 1 are integrally cast, a protective pad 26 and a sealing pad 42 are both made of rubber materials, the outer diameter of a main body plate 21 is matched with the inner diameter of the material channel 11, the valve rod 3 is connected with the main body plate 21 through a connector 22, the cross sections of the joint of the material channel 11 and the adjusting cavity 12 and the connector 22 are both in an inverted trapezoid shape, and the joint of the material channel 11 and the;

as shown in fig. 1 and 6 to 7, the embodiment is specifically as follows: valve plate 2 is under the closed condition, main part board 21 both ends respectively with location sand grip 13 direct contact, rubber material's protection pad 26 can guarantee main part board 21 and location sand grip 13 contact position leakproofness, avoid the material by the clearance seepage between main part board 21 and the material passageway 11 under 2 closed condition of valve plate, the setting of location sand grip 13 not only lies in prescribing a limit to the direction of rotation of valve plate 2, and the further leakproofness that improves under the 2 closed condition of valve plate, and the trapezoidal design of connector 22 with the 12 looks adaptations of regulation cavity, can be under closed valve plate 2's state, by the matching of the narrow bore of adjusting cavity 12 bottom to the large bore in connector 22 top, can effectively seal the junction of material passageway 11 and regulation cavity 12, the leakproofness to valve plate 2 department of multi-angle is guaranteed.

The working principle of the invention is as follows:

referring to the attached drawings 1-5 of the specification, when the valve rod 3 drives the main body plate 21 to rotate counterclockwise in the material channel 11, the positioning rod 25 rotates angularly at the position of the adjusting groove 44 to drive the whole position of the valve plate 2 to lift relatively, and drive the main body plate 21 to rotate angularly in the turning groove 45, because the turning groove 45 limits the rotation angle of the main body plate 21 and the adjusting groove 44 limits the rotation angle of the positioning rod 25, the maximum rotation angle of the valve plate 2 in the material channel 11 is limited to 90 degrees, when the valve rod 3 drives the valve plate 2 to rotate counterclockwise to the non-rotatable position, the material flow at the position of the material channel 11 reaches the maximum, and when the valve plate 2 is closed, the valve rod 3 only needs to drive the valve plate 2 to rotate clockwise, the positioning rod 25 rotates to the lowest position of the relative position at the position of the adjusting groove 44, thereby driving the height of the relative position of the, the sealing gasket 42 is extruded at the bottom end of the driving plate;

further, referring to fig. 1 and 6-7 of the specification, when the valve plate 2 is in the closed state, two ends of the main body plate 21 are respectively in direct contact with the positioning protrusions 13, the rubber protection pad 26 can ensure the contact position tightness between the main body plate 21 and the positioning protrusions 13, and prevent the material from leaking from the gap between the main body plate 21 and the material channel 11 when the valve plate 2 is in the closed state, the positioning protrusions 13 are not only arranged to limit the rotation direction of the valve plate 2, and further improves the sealing performance of the valve plate 2 in a closed state, and the connecting head 22 and the adjusting cavity 12 are in a trapezoidal design with a shape matched, the narrow caliber at the bottom end of the adjusting cavity 12 can be matched with the large caliber at the top of the connector 22 under the state of closing the valve plate 2, can be effectively sealed at the joint of the material channel 11 and the adjusting cavity 12, and the sealing performance of the valve plate 2 at multiple angles is ensured.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.