Built-in ball valve

Abstract

The utility model relates to a built-in ball valve which aims at solving the technical problems that a locking structure between a connector and a valve body of an existing similar product needs to be improved, and locking in-place indication is lacked at the position of the connector. The ball valve is characterized in that protruding L-shaped blocks which are symmetrically arranged in pairs are arranged on the outer diameter of a round hole opening in one end of a connector at a valve body of the ball valve, protruding protruding column blocks are symmetrically arranged between the L-shaped blocks, sliding block grooves are formed in the positions, corresponding to the inner diameter of the connector, of the L-shaped blocks of the valve body, a first through hole is formed in the lower portion of the bottom of one end of each sliding block groove, and a second through hole is formed in the lower portion of the bottom of the other end of each sliding block groove. An open L-shaped groove is formed in the position, corresponding to the inner diameter of the connector, of the protruding column block of the valve body, a buckle groove is formed in the upper portion of the bottom of one end of the L-shaped groove, and the L-shaped block of the valve body is screwed into and rotationally locked at the first through hole of the connector through the sliding block groove of the connector and the protruding column block of the valve body through the buckle groove of the connector. The convex column block of the valve body crosses over the buckling groove of the interface and abuts against the L-shaped groove at the buckling groove of the interface; a protruding square plate is arranged on the edge of the ring face of the step at one end of the connector.

Description

Technical Field

[0001] The utility model relates to an electric ball valve, which is an internal ball valve. Background Art

[0002] An electric ball valve is a valve body in which a ball rotates around the axis of a valve stem driven by a motor. It is mainly used in industrial automation control systems and is composed of an electric actuator and a ball valve, serving as an important actuator for pipeline pressure elements. The opening and closing part (ball) of such an electric ball valve is driven by the valve stem and is provided with a valve that rotates around the axis of the valve stem. It is usually used for the opening and closing control of pipeline media, mainly for cutting off or connecting the media in the pipeline, and can also be used for the regulation and control of fluids. It is particularly suitable for media containing fibers, tiny solid particles, etc., and has a strong shearing force. For example, the application publication number CN117307747A disclosed in the Chinese patent literature, the application publication date is December 29, 2023, and the invention name is "Internal Electric Ball Valve"; however, a ball valve cushion is provided at the seal of the above product, the locking structure between the valve cover and the valve body needs to be improved, there is a lack of indication of being locked in place at the valve cover, and the connection structure between the motor and the valve body needs to be further improved. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the utility model is to provide an internal ball valve to the art, so as to solve the technical problems that the locking structure between the interface of existing similar products and the valve body needs to be improved and there is a lack of indication of being locked in place at the interface. The purpose is achieved through the following technical solutions.

[0004] A built-in ball valve, a valve body of the ball valve is provided with an interface at an orifice at one end, the interface and the valve body are connected as a whole after being fitted with a rotating buckle, a ball sealing gasket is fixedly provided in the interface where the ball and the interface are connected, and an opening is provided at the other end of the valve body symmetrical to the interface, and the top and bottom sides of the valve body between the orifice and the opening are correspondingly flat key surfaces and provided with a ball, the bottom of the central axis of the ball is connected to a positioning shaft extending into the valve body, and the top of the central axis of the ball symmetrical to the positioning axis is connected to the rotating shaft of the motor at the motor assembly extending into the valve body; a stamped and formed circular stainless steel spherical surface is provided on the end face of one side of the interface of the ball, and intermediate channels are provided at both ends of the ball on both sides of the stainless steel spherical surface, and the ball is driven by the rotating shaft of the motor to rotate until the stainless steel spherical surface and the ball sealing gasket are against each other to seal, and when the stainless steel spherical surface and the ball sealing gasket are rotated to fall off and open, the intermediate channels at the balls on both sides of the stainless steel spherical surface are aligned with the interface and the openings of the valve body. The key points of the structural design are that the outer diameter of the circular hole at one end of the interface of the valve body is provided with two symmetrically arranged and raised L-shaped blocks, wherein the L-shaped blocks are symmetrically provided with raised boss blocks, the L-shaped blocks of the valve body are provided with a slider groove corresponding to the inner diameter of the interface, and a first through hole is provided at the bottom of one end of the slider groove, and an open L-shaped groove is provided at the boss block of the valve body corresponding to the inner diameter of the interface, and a buckle groove is provided at the bottom of one end of the L-shaped groove, and the L-shaped block of the valve body passes through the slider groove of the interface, and the boss block of the valve body passes through the buckle groove of the interface and is rotated and locked at the first through hole of the interface. At the same time, the boss block of the valve body passes over the buckle groove of the interface and abuts against the L-shaped groove at the buckle groove of the interface. Therefore, the buckle groove of the interface acts as an elastic sheet, and the screwing and locking structure of the interface and the valve body is more stable and firm.

[0005] A raised square plate is provided on the edge of the ring surface of the slider groove at one end of the interface and the step below the L-shaped groove. When the interface is installed in place on the valve body, the square plate of the interface is aligned upward with the motor assembly above. Thus, the square plate of the interface is used as a reminder sign of installation in place, or a sign for model or serial number identification.

[0006] The other end of the interface is provided with pipe buckles which are evenly distributed and have ends protruding outwards, a sealing groove is provided on the outer diameter of the interface below the pipe buckle, and a raised indicator column is conveniently provided on the cover opening at the interface corresponding to the square plate.

[0007] The circular plane edge at the top of the stainless steel spherical surface is provided with a chamfered edge downward, and the two sides of the stainless steel spherical surface are provided with integrally stamped and bent grooves, and the bottom and top of the sphere on one side of the spherical surface corresponding to the groove are respectively provided with undercuts, and the groove of the stainless steel spherical surface is buckled with the undercut of the sphere.

[0008] The outer diameter of the circular groove on one side of the spherical surface of the sphere is provided with an outer ring groove which is respectively connected with the buckle groove at the top undercut of the bottom of the sphere. When the clamping groove of the stainless steel spherical surface is buckled with the undercut of the sphere, the ring groove edge which is integrally stamped and bent at the bottom of the stainless steel spherical surface is inserted into the outer ring groove of the sphere.

[0009] The middle channel of the sphere is cylindrical, and circular chamfered surfaces in the shape of triangles are respectively provided at the flat end corners on one side of the stainless steel spherical surface of the sphere.

[0010] On both sides of the shaft hole where the rotating shaft is connected to one side of the motor assembly at the top of the sphere, limiting bumps are symmetrically provided. On one side of the hole position at the top inside the valve body corresponding to the limiting bumps, a stop bar is provided. Thus, when the sphere rotates into place inside the valve body, the limiting bumps on the sphere abut against the stop bar inside the valve body for limiting.

[0011] At the small inner diameter of one end of the sphere gasket, the inner diameter is higher than the outer diameter of the large outer ring. It is sleeved and inserted into the protruding end cavity at the sealing part of the interface. On the other end of the small inner diameter and the large outer diameter of the sphere gasket, a protruding sealing surface is provided. The above structure facilitates the fixing of one end of the sphere gasket inside the interface and ensures that the other end of the sphere gasket abuts against the stainless steel spherical surface of the sphere for sealing.

[0012] At the locking holes where the notches on the motor cover of the motor assembly are symmetrically arranged in pairs, locking grooves are respectively provided at the inner diameters. While one end notch of the motor cover is sleeved and locked into the protruding shaft hole on one side of the valve body, locking blocks that are symmetrically arranged in pairs and protrude from the middle of the outer diameter at the shaft hole of the valve body respectively slide into and are locked into the locking holes through the locking grooves of the motor cover. The limiting post protruding from one side of the outer diameter of the notch of the motor cover abuts against the inverted column head protruding from one side below the shaft hole of the valve body. The above structure facilitates the connection and assembly of the motor assembly and the valve body and the installation in place. The shaft hole of the valve body is designed to be higher, improving the fitting and assembly between the valve body and the motor assembly.

[0013] The end of the positioning shaft is fixed to the end groove at the bottom of the valve body by a snap, and the end groove is symmetrically arranged inside the convex rib at the bottom of the valve body.

[0014] The structure of the utility model is reasonably designed, convenient to use and produce, has good sealing performance and stability, and occupies a small volume; it is suitable for use as an in-built ball valve with a motor and the structural improvement of similar products. Description of the Drawings

[0015] Figure 1 is a schematic perspective structure diagram of an embodiment of the utility model, and the dotted line in the figure is the internal structure of the valve body.

[0016] Figure 2 is Figure 1 a schematic cross-sectional structure diagram.

[0017] Figure 3 is Figure 1 a partial exploded structure diagram.

[0018] Figure 4 is Figure 3 a schematic diagram of the internal structure of the valve body.

[0019] Figure 5 yes Figure 3 Schematic diagram of the structure on the cover side of the interface.

[0020] Serial number and name of the accompanying drawings: 1. Motor assembly, 101. Locking hole, 102. Limit column, 2. Interface, 201. Slider groove, 202. L-shaped groove, 203. Square plate, 204. Indicator column, 205. Pipe buckle, 3. Ball sealing gasket, 4. Positioning shaft, 5. Ball, 501. Undercut, 502. Circular groove, 503. Outer ring groove, 504. Chamfered surface, 505. Limiting protrusion, 6. Valve body, 601. L-shaped block, 602. Protruding column block, 603. Locking block, 604. Inverted column head, 605. Bumper, 7. Stainless steel spherical surface, 701. Slot, 702. Ring groove edge. Implementation

[0021] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figures 1 - 5As shown, an interface 2 is provided at the orifice of one end of the valve body 6 of the ball valve, and the interface and the valve body are connected as a whole after being fitted with a rotating buckle, a ball sealing gasket 3 is fixedly provided in the interface where the ball and the interface are connected, and an opening is provided at the other end of the valve body where the interface is symmetrical, and the top and bottom sides of the valve body between the orifice and the opening are correspondingly flat key surfaces and provided with a ball 5, the bottom of the central axis of the ball is connected to the positioning axis 4 extending into the valve body, and the top of the central axis of the ball symmetrical to the positioning axis is connected to the rotating shaft of the motor at the motor assembly 1 extending into the valve body; a stamped and circular stainless steel spherical surface 7 is provided on the end face of one side of the interface of the ball, and intermediate channels are provided at both ends of the ball on both sides of the stainless steel spherical surface, and the ball is driven by the rotating shaft of the motor to rotate until the stainless steel spherical surface and the ball sealing gasket are against each other to seal, and when the stainless steel spherical surface and the ball sealing gasket are rotated to fall off, the ball is opened, and at the same time, the intermediate channels at the balls on both sides of the stainless steel spherical surface are aligned with the openings of the interface and the valve body. The outer diameter of the circular hole at one end of the interface of the above-mentioned valve body is provided with two symmetrically arranged and raised L-shaped blocks 601, wherein the L-shaped blocks are symmetrically provided with raised boss blocks 602, the L-shaped blocks of the valve body are provided with a slider groove 201 corresponding to the inner diameter of the interface, a first through hole is provided at the bottom of one end of the slider groove, an open L-shaped groove 202 is provided at the boss block of the valve body corresponding to the inner diameter of the interface, a buckle groove is provided at the bottom of one end of the L-shaped groove, the L-shaped block of the valve body passes through the slider groove of the interface, and the boss block of the valve body passes through the buckle groove of the interface and is rotated and locked at the first through hole of the interface. At the same time, the boss block of the valve body passes over the buckle groove of the interface and abuts against the L-shaped groove at the buckle groove of the interface. A raised square plate 203 is provided on the edge of the ring surface at the step below the slider groove and the L-shaped groove at one end of the interface. When the interface is installed in place on the valve body, the square plate of the interface is aligned upward with the motor assembly above, and the cover of the interface corresponding to the square plate is conveniently provided with a raised indicator column 204. The other end of the interface is provided with pipe buckles 205 which are evenly distributed and have ends protruding outward, and a sealing groove is provided on the outer diameter of the interface below the pipe buckles.

[0022] The circular plane edge at the top of the stainless steel sphere is provided with a chamfered edge downward, and the two sides of the stainless steel sphere are provided with a slot 701 formed by integral stamping and bending. The bottom and top of the sphere on one side of the sphere corresponding to the slot are respectively provided with undercuts 501, and the slot of the stainless steel sphere is buckled with the undercut of the sphere. The outer diameter of the circular groove on one side of the sphere is provided with an outer ring groove 503 that is respectively connected with the buckle groove at the undercut of the bottom and top of the sphere. When the slot of the stainless steel sphere is buckled with the undercut of the sphere, the ring groove edge 702 formed by integral stamping and bending at the bottom of the stainless steel sphere is inserted into the outer ring groove of the sphere. The middle channel of the sphere is cylindrical, and the end corners of the plane on one side of the stainless steel sphere are respectively provided with triangular round chamfered surfaces 504. The axial hole protruding at the rotating shaft connection of the motor assembly on one side of the sphere top is symmetrically provided with a limit protrusion 505, and a stop bar 605 is provided on one side of the top hole position in the valve body corresponding to the limit protrusion.

[0023] The inner diameter of the small inner diameter at one end of the spherical sealing gasket is higher than the large outer diameter and is inserted into the raised end cavity of the interface seal. The small inner diameter and the other end of the large outer diameter of the spherical sealing gasket are provided with a raised sealing surface. The inner diameters of the locking holes 101 symmetrically arranged in the notches at the motor cover of the motor assembly are respectively provided with locking grooves. At the same time, the notches at one end of the motor cover are inserted and locked in the raised shaft hole on one side of the valve body. At the same time, the locking blocks 603 symmetrically arranged and raised in the middle of the outer diameter of the shaft hole of the valve body slide into and lock in the locking holes through the locking grooves of the motor cover. The raised limiting column 102 on one side of the outer diameter of the notch of the motor cover is against the raised inverted column head 604 on one side below the shaft hole of the valve body. The end of the positioning shaft is buckled and fixed to the end groove at the bottom of the valve body, and the end groove is symmetrically arranged on the inner side of the convex rib at the bottom of the valve body.

[0024] The main principle of the built-in ball valve is as follows: when the ball is on and off (90-degree rotation), the interface squeezes the sealing surface of the raised ribs at the ball seal, causing the sealing surface to compress against the stainless steel spherical surface to ensure the sealing effect. Among them, the assembly principle of the stainless steel spherical surface and the ball is as follows: the slot on the stainless steel spherical surface is buckled on the undercut of the ball, and there are slots on the top and bottom to ensure that it is firmly assembled.

Claims

1. An internal ball valve, at one end orifice of the valve body (6) of the ball valve, an interface (2) is provided, and after a rotating snap-fastener is sleeved between the interface and the valve body, they are connected as a whole. A ball gasket (3) is fixedly arranged inside the interface at the connection between the ball and the interface. At the other end of the valve body symmetrical to the interface, there is an opening. On both sides of the top and bottom inside the valve body between the orifice and the opening, corresponding flat key surfaces are formed and a ball (5) is provided. The bottom of the central axis of the ball is connected to a positioning shaft (4) extending into the valve body, and the top of the central axis at the position of the ball symmetrical to the positioning shaft is connected to the rotating shaft of the motor of the motor assembly (1) extending into the valve body; on one side end face of the interface of the ball, there is a stainless steel spherical surface (7) formed by stamping into a circular shape. There are intermediate channels at both ends of the ball on both sides of the stainless steel spherical surface. When the ball drives the stainless steel spherical surface to rotate through the rotating shaft of the motor until the stainless steel spherical surface abuts against the ball gasket, it is sealed. When it rotates until the stainless steel spherical surface falls off from the ball gasket and opens, at the same time, the intermediate channels at the ball on both sides of the stainless steel spherical surface are aligned and communicated with the interface and the opening of the valve body; it is characterized in that The outer diameter of the circular hole at one end of the interface (2) of the valve body (6) is provided with two symmetrically arranged and raised L-shaped blocks (601), wherein raised boss blocks (602) are symmetrically arranged between the L-shaped blocks, and a slider groove (201) is provided at the L-shaped block of the valve body corresponding to the inner diameter of the interface, and a first through hole is provided at the bottom of one end of the slider groove, and an open L-shaped groove (202) is provided at the boss block of the valve body corresponding to the inner diameter of the interface, and a buckle groove is provided at the bottom of one end of the L-shaped groove. The L-shaped block of the valve body passes through the slider groove of the interface, and the boss block of the valve body passes through the buckle groove of the interface and is rotated and locked at the first through hole of the interface. At the same time, the boss block of the valve body passes over the buckle groove of the interface and abuts against the L-shaped groove at the buckle groove of the interface; the inner diameter of the small inner ring diameter at one end of the ball sealing gasket (3) is higher than the large outer ring diameter and is inserted into the raised end cavity of the sealing part of the interface (2), and the other end of the small inner ring diameter and the large outer ring diameter of the ball sealing gasket is provided with a raised sealing surface.

2. The built-in ball valve according to claim 1, characterized in that A raised square plate (203) is provided on the edge of the ring surface at the step below the slider groove (201) and the L-shaped groove (202) at one end of the interface (2); when the interface is installed in place on the valve body (6), the square plate of the interface is aligned upward with the upper motor assembly (1); and a raised indicator column (204) is conveniently provided at the cover opening of the interface corresponding to the square plate.

3. The built-in ball valve according to claim 1, characterized in that The other end of the interface (2) is provided with pipe buckles (205) which are equidistantly distributed and have ends protruding outwards, and a sealing groove is provided on the outer diameter of the interface below the pipe buckle.

4. The built-in ball valve according to claim 1, wherein The circular plane at the top of the stainless steel spherical surface (7) is provided with a chamfered edge downwardly, and both sides of the stainless steel spherical surface are provided with integrally stamped and bent grooves (701), and the bottom and top of the sphere (5) on one side of the spherical surface corresponding to the grooves are respectively provided with undercuts (501), and the grooves of the stainless steel spherical surface are buckled with the undercuts of the sphere.

5. The built-in ball valve according to claim 4, characterized in that The outer diameter of the circular groove (502) on one side of the spherical surface of the sphere (5) is provided with outer ring grooves (503) respectively communicating with the buckle grooves at the top undercut (501) of the bottom of the sphere, and when the clamping groove (701) of the stainless steel spherical surface (7) is engaged with the undercut of the sphere, the ring groove edge (702) formed by integral stamping and bending at the bottom of the stainless steel spherical surface is inserted into the outer ring groove of the sphere.

6. The built-in ball valve according to claim 1, characterized in that The middle channel of the sphere (5) is cylindrical, and the plane end corners of one side of the stainless steel spherical surface (7) of the sphere are respectively provided with triangular chamfered surfaces (504).

7. The built-in ball valve according to claim 1, characterized in that Limiting protrusions (505) are symmetrically provided on both sides of the protruding shaft hole at the rotating shaft connection of one side of the motor assembly (1) at the top of the spherical body (5), and a stop bar (605) is provided on one side of the top hole position in the valve body (6) corresponding to the limiting protrusion.

8. The built-in ball valve according to claim 1, characterized in that The motor cover of the motor assembly (1) has locking holes (101) symmetrically arranged in pairs at the inner diameter thereof, respectively provided with locking grooves. The notch at one end of the motor cover is inserted into and locked with a raised shaft hole on one side of the valve body (6). At the same time, locking blocks (603) symmetrically arranged and raised in pairs at the middle of the outer diameter of the shaft hole of the valve body slide into and lock with the locking holes through the locking grooves of the motor cover. The raised limiting column (102) on one side of the outer diameter of the notch of the motor cover abuts against the raised inverted column head (604) on one side below the shaft hole of the valve body.

9. The built-in ball valve according to claim 1, wherein The end buckle of the positioning shaft (4) is fixedly connected to the end slot at the bottom of the valve body (6), and the end slots are symmetrically arranged inside the bottom rib of the valve body.

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