CN220435483U

CN220435483U - Ball valve device with check valve

Info

Publication number: CN220435483U
Application number: CN202321489332.1U
Authority: CN
Inventors: 洪本灿
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2024-02-02
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a ball valve device with a check valve, which comprises a body, a sealing cover, a ball valve and a check valve, wherein the ball valve and the check valve are detachably arranged in the body, the body is provided with a first installation section, a transition section and a second installation section, the inner diameter of the transition section is smaller than that of the first installation section and the second installation section, the sealing cover is positioned in the second installation section, the ball valve is positioned in the second installation section, sealing gaskets are arranged at the left ends of the transition section and the sealing cover in a gasket manner, a water outlet is formed in the bottom surface of the first installation section, the body is provided with a sealing cover, the check valve is provided with a moving block, a first screwing block and a second screwing block which are both screwed in the first installation section, the first screwing block is positioned at the left side of the moving block and is in sealing fit with the first installation section, and the moving block is tensioned on the second screwing block; compared with the prior art, the casing is formed by the body and the sealing cover, the length of the body is not required to be increased to facilitate installation, and when the sealing cover is screwed out of the water outlet in cold weather, water in the body can be prevented from freezing, so that the check valve core cannot move.

Description

Ball valve device with check valve

Technical Field

The utility model relates to the field of ball valves, in particular to a ball valve device with a check valve.

Background

Ball valves and check valves are two commonly used valves. The ball valve is a ball body, the valve rod drives the valve which is rotationally opened and closed, the check valve is a valve which automatically opens and closes the valve clack by means of the flowing of a medium, and is used for preventing the medium from flowing backwards, and belongs to an automatic valve; the check valve comprises a check valve body, a ball valve body, a check valve seat, a supporting seat, a medium flow hole, a check valve core, an elastic piece, a supporting rod, a guide hole, a conical sealing surface, a guide post and a sealing post, wherein the check valve seat is arranged at one end of the check valve body, the supporting seat is arranged at the other end of the check valve body, the threaded connection is arranged between the supporting seat and the check valve body, the medium flow hole is arranged on the supporting seat, the check valve body is internally provided with the check valve core, the elastic piece is arranged between one side of the check valve core and the supporting seat, the supporting rod is arranged at one end of the check valve core, the other side of the check valve core is in sealing fit with the check valve seat, the guide hole is arranged at the center of the check valve seat, the conical sealing surface is arranged towards the end face of the check valve core, the guide post is fixedly connected with one side of the check valve seat, which is matched with the guide post, the guide post is arranged at one side of the check valve seat, and comprises an integrally formed frustum part and a cylindrical part, the conical sealing part, and the conical sealing part forms a first sealing part. The one end that the guiding hole kept away from the supporting seat is equipped with prevents stifled device, prevent stifled device with the inner wall looks block of check valve body. When the water flow valve is applied, water flows through the check valve core, the elastic piece is compressed on the supporting rod, a water supply flow channel is formed between the check valve core and the check valve seat, and finally water flows out of the supporting seat.

According to the ball valve device with the check valve, the shell of the ball valve device is composed of the ball valve body, the check valve body and the connecting seat between the ball valve body and the check valve body, the connecting seat is arranged to facilitate the installation of the ball and the check valve, but the connecting seat lengthens the length of the whole device and increases the whole length, so that the material cost is higher; meanwhile, in the use process, water flow can remain between the supporting seat and the check valve core, and if the water outside the check valve core is easy to cause ice formation in cold weather, the check valve core cannot move.

In view of the above, the present inventors have conducted intensive studies on the above problems, and have produced the present utility model.

Disclosure of Invention

The utility model aims to provide a ball valve device with a check valve, which solves the problems that the whole device of the existing ball valve device with the check valve is added with a connecting seat, so that the installation is convenient, the material cost is high, and the work of a check valve core is easily affected when the device encounters cold weather.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the ball valve device with the check valve comprises a shell, a ball valve and a check valve, wherein the shell is a hollow body with two open ends, the ball valve and the check valve are detachably arranged in the shell, and the water inlet direction of the shell is from left to right; the shell is provided with a body and a sealing cover, the body is provided with a first installation section, a transition section and a second installation section which are sequentially arranged from left to right, the inner diameter of the transition section is smaller than that of the first installation section and that of the second installation section, the left end of the sealing cover is screwed in the second installation section, the ball valve is positioned in the second installation section, the sealing gasket tightly attached to the outer side wall of the ball valve is arranged at the left end face of the transition section and the sealing cover, the bottom surface of the first installation section is provided with a water outlet, the body is screwed with a sealing cover for sealing the water outlet, the check valve is provided with a first screwing block, a moving block and a second screwing block, the first screwing block and the second screwing block are both screwed in the first installation section, the first screwing block is positioned outside the left side of the moving block and is in sealing fit with the first installation section, the moving block is provided with a left sealing part and a right rod part, the second screwing block is positioned on the right side of the first screwing block, the left sealing part is in sealing fit with the first screwing block, the right rod part movably passes through the second screwing block and the left tensioning part is provided with a spring between the left tensioning part and the second screwing block.

The sealing cover is provided with a closed-loop-shaped convex ring extending into the right side of the second installation section, the closed-loop-shaped convex ring is in threaded connection with the second installation section, the left side surface of the closed-loop-shaped convex ring is concavely provided with a right closed-loop-shaped groove communicated with the hollow space of the closed-loop-shaped convex ring to the right, a first step surface is formed between the inner side wall of the transition section and the inner side wall of the second installation section, the right side surface of the first step surface is concavely provided with a left closed-loop-shaped groove communicated with the hollow space of the transition section to the left, the right closed-loop-shaped groove and the left closed-loop-shaped groove are embedded with the sealing gaskets, the ball valve is provided with a ball body and a valve rod, the outer side wall of the ball body is in close fit with each sealing gasket, and the valve rod is in control connection with the ball body.

The utility model discloses a valve rod, including the top surface lateral wall of second installation section, the top surface lateral wall of second installation section is gone up to protruding being equipped with the installation piece, has seted up on the installation piece along upper and lower direction extension and the installation cavity that is linked together with the cavity of second installation section, the valve rod erects to set up in the installation cavity, inlays on the lateral wall of valve rod to be equipped with the O type circle of installation cavity sealing fit, the interior top surface of second installation section is gone up concave being equipped with and is linked together with the installation cavity and is in the spacing groove of installation piece below, the lower extreme tip of valve rod is gone down protruding to be equipped with the stopper that can stretch into in the spacing groove, has the interval between the top surface of stopper and the groove top of spacing groove, the bottom surface of stopper is gone down protruding to be equipped with to stretch into the embedded block in the spheroid upper end, fixedly connected with handle part on the top surface of valve rod.

The top surface one end of installation piece is equipped with the non-closed loop recess that is linked together with the cavity space of installation piece to the indent, the handle part has uide bushing and handle, and the upper end of uide bushing and the upper end fixed connection of valve rod, and the lower extreme cover of uide bushing is established outside the upper end of installation piece, and the inside wall of uide bushing inwards is protruding to be equipped with the restriction piece of folding on the tank bottom of non-closed loop recess, the handle is along controlling the horizontal setting of direction, and the left end of handle is in the same place with the uide bushing installation.

The bottom surface of first installation section upwards concave be equipped with the above-mentioned outlet that is linked together of cavity of first installation section, sealed lid has spiral shell dress section and is in the sealed laminating section of spiral shell dress section below, spiral shell dress section spiral shell closes and installs in the outlet, the top surface of sealed laminating section and the bottom surface of first installation section match that pastes.

The first installation section has from left to right the spiral shell section that sets gradually, stretches into the section, water section and inlays the dress section, stretches into the internal diameter of section and is less than the internal diameter of spiral shell section, and the internal diameter of water section is greater than the internal diameter of inlaying the dress section, and the second spiral shell is in inlaying the dress section, is equipped with on the second spiral shell piece and supplies right pole portion to stretch into the mouth that stretches into in, and is equipped with the water mouth that is in the mouth that stretches into outward on the second spiral shell piece.

The second screw block is screwed in the embedded section, the inner diameter of the extending section is smaller than the inner diameter of the water passing section, the outer diameter of the left sealing part is smaller than the outer diameter of the water passing section, a first sealing gasket is arranged on the left side of the left sealing part, a second step surface is formed between the inner side wall of the extending section and the inner side wall of the screw section, the first screw block is screwed in the screw section, a second sealing gasket is arranged between the first screw block and the second step surface, and a pressing block extending into the water passing section and pressing on the left side of the first sealing gasket is arranged on the right side surface of the first screw block in a protruding mode.

The inner diameter of the embedded section is larger than that of the transition section, a third step surface is formed between the embedded section and the transition section, and the right side surface of the second screwing block is closely attached to the third step surface.

The left side face of the second screwing block is provided with a plurality of water passing columns in a protruding mode to the left, the second screwing block is provided with the water passing ports communicated with the intervals among the water passing columns, the water passing columns are evenly arranged at intervals along the circumferential direction, the left end of each water passing column is located in a range of extending into a section, the end part of the left end of each water passing column is provided with a protruding block in an inwards protruding mode, the inner diameter of the protruding block is smaller than the inner diameter of each water passing column, the left sealing part is located between the protruding blocks, the left end face of the left sealing part is a protruding cambered surface protruding to the left, the first screwing block is provided with a horizontal straight part and a vertical part located on the left side of the horizontal straight part, the horizontal straight part extends into the extending section and is screwed with the water passing column together, one end of the vertical part back to the moving block extends into the screwing section and is screwed together with the screwing section, a fourth step face is formed between one end of the vertical part facing the moving block and the horizontal straight part, and a sealing gasket is arranged between the fourth step face and the left side face of each water passing column.

The left side face of the vertical portion is concavely provided with an embedded groove to the right, the left side face of the vertical portion is flush with the left side face of the screwing section, and the left sides of the vertical portion and the screwing section are provided with sealing embedded rings extending into the embedded groove.

When the ball valve device with the check valve is assembled, a ball body enters a hollow cavity of a second installation section from the right opening of the second installation section, then a sealing cover is screwed into the right end of the second installation section, then a second screwing block enters the first installation section from the left opening of the screwing section and is installed together with the first installation section, then a right rod part of a moving block is sleeved with a tensioning spring to extend into the second screwing block, meanwhile, a left sealing part is in sealing fit with screwing, and finally the first screwing block is screwed on the screwing section to complete the assembly; when the sealing device is applied, water flow enters from the opening of the first screwing block, the water flow impacts the left sealing part, the left sealing part is compressed rightwards under the action of the tensioning spring, and a space is formed between the left sealing part and the first mounting section, so that the water flow passes through the water passing hole and finally flows out, and meanwhile, the sealing cover and the water outlet are matched to facilitate water discharge in the first mounting section; compared with the prior art, the casing is body and closing cap constitution, and the spheroid gets into from the right side open mouth of body, and the check valve gets into from the left side of body, need not to increase body length and installs conveniently, has saved the length of whole casing, and material cost is lower, if meet cold weather moreover, will seal the lid spiral shell outlet, will install the water discharge in the section with first, can avoid the water in the section of first to freeze and make the unable motion of check case.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic diagram of another embodiment of the present utility model.

Fig. 3 is a schematic view of another structure of the present utility model.

Fig. 4 is a schematic view of still another structure of the present utility model.

Detailed Description

For further explanation of the technical scheme of the present utility model, the following is described in detail with reference to the accompanying drawings.

The utility model relates to a ball valve device with a check valve, which is shown in figures 1-2, and comprises a shell, a ball valve 1 and a check valve, wherein the shell is a hollow body with two open ends, the ball valve 1 and the check valve are detachably arranged in the shell, and the water inlet direction of the shell is from left to right; the shell is provided with a body 3 and a sealing cover 4, the body 3 is provided with a first mounting section 31, a transition section 32 and a second mounting section 33 which are sequentially arranged from left to right, the inner diameter of the transition section 32 is smaller than the inner diameter of the first mounting section 31 and the inner diameter of the second mounting section 33, the left end of the sealing cover 4 is screwed in the second mounting section, the ball valve 1 is positioned in the second mounting section 33, the left end face of the transition section 32 and the sealing cover 4 are provided with a sealing gasket 5 tightly attached to the outer side wall of the ball valve 1 in a filling manner, specifically, the sealing cover is in a closed-loop block structure, the sealing cover 4 is provided with a closed-loop convex ring 41 extending into the right side of the second mounting section 33, the outer side wall of the closed-loop convex ring 41 is provided with a first external thread, the inner side wall of the second mounting section 33 is provided with a first internal thread (not shown in the figure) matched with the first external thread, the left side face of the closed-loop convex ring 41 is concavely provided with a right closed-loop groove communicated with a hollow space of the closed-loop convex ring 41, the left side face of the sealing cover 32 is provided with a hollow space communicated with the hollow space of the ball valve, the sealing gasket 1 is provided with the inner diameter of the sealing gasket 11 is provided with the inner side face of the sealing gasket 11, the sealing gasket 11 is provided with the inner side face of the sealing gasket 11 is provided with the sealing gasket 11, the sealing gasket 11 is provided with the inner side wall 11 is provided with the sealing groove 11, the sealing groove 11 is provided with the inner side face 11 is provided with the sealing groove is more has a sealing groove 11 and the sealing groove 11; when the sealing gasket 5 is used, the sealing gasket 5 is embedded in the left closed-loop groove, the ball 11 extends into the second mounting section 33 from the right end opening of the second mounting section 33, the sealing gasket 5 is embedded in the right closed-loop groove, then the closed-loop convex ring 41 of the sealing cover 4 extends into the right end of the second mounting section 33, the sealing cover 4 is screwed with the second mounting section 33 under the cooperation of the first external thread and the first internal thread, and meanwhile, the ball 11 is in sealing cooperation with the sealing cover 11 and the second mounting section 33 under the action of the sealing gasket 5 positioned at two sides of the ball.

The bottom surface of the first mounting section 31 is provided with a water outlet, the body 3 is provided with a sealing cover 4 for sealing the water outlet in a threaded manner, specifically, the bottom surface of the first mounting section 31 is provided with the water outlet which is communicated with the hollow cavity of the first mounting section 31 in an upward concave manner, the sealing cover 4 is provided with a threaded section 41 and a sealing attaching section 42 positioned below the threaded section 41, the threaded section 41 is arranged in the water outlet in a threaded manner, namely, the outer side wall of the threaded section 41 is provided with a second external thread, the inner side wall of the water outlet is provided with a second internal thread, the top surface of the sealing attaching section 42 is in an attaching fit with the bottom surface of the first mounting section 31, and a gasket (not shown in the figure) positioned above the sealing attaching section 42 is sleeved outside the lower end of the threaded section 41; in use, the screw-on section 41 is screw-mounted with the first mounting section 31 by the cooperation of the second external screw thread and the second internal screw thread; if the water in the first mounting section 31 is frozen, the check valve core cannot move because the screw-on section 41 is screwed out of the water outlet to drain the water in the first mounting section 31.

The check valve is provided with a first screwing block 21, a moving block 22 and a second screwing block 23, the first screwing block 21 and the second screwing block 23 are both screwed in the first mounting section 31, the first screwing block 21 is positioned outside the left side of the moving block 22 and is in sealing fit with the first mounting section 31, the moving block 22 is provided with a left sealing part 221 and a right rod part 222, the second screwing block 23 is positioned on the right side of the first screwing block 21, the left sealing part 221 is in sealing fit with the first screwing block 21, the right rod part 222 movably penetrates through the second screwing block 23, and a tensioning spring which is tensioned between the left sealing part 221 and the second screwing block 23 is sleeved outside the right rod part 222; specifically, the first mounting section 31 has a screwing section 311, an inserting section 312, a water passing section 313 and an embedding section 314 sequentially arranged from left to right, the inner diameter of the inserting section 312 is smaller than the inner diameter of the screwing section 311, the inner diameter of the inserting section 312 is smaller than the inner diameter of the water passing section 313, the inner diameter of the inserting section 312 is larger than the inner diameter of the embedding section 314, the inner diameter of the water passing section 313 is larger than the inner diameter of the embedding section 314, the second screwing block 23 is positioned in the embedding section 314, an inserting opening for inserting the right rod portion 222 therein is arranged on the second screwing block 23, a water passing opening positioned outside the inserting opening is arranged on the second screwing block 23, the second screwing block 23 is screwed in the embedding section 314, namely, a third external thread is arranged on the outer side wall of the second screwing block 23, a third internal thread matched with the third external thread is arranged on the inner side wall of the embedding section 314, the outer diameter of the left sealing portion 221 is smaller than the outer diameter of the water passing section 313, a first sealing gasket 2211 is arranged at the left side of the left sealing part 221, a second step surface is formed between the inner side wall of the extending section 312 and the inner side wall of the screwing section, the first screwing block 21 is screwed in the screwing section 311, namely, a fourth external screw thread is arranged on the outer side wall of the first screwing block 21, a fourth internal screw thread matched with the inner side wall of the fourth external screw thread is arranged on the inner side wall of the screwing section 311, a second sealing gasket 211 is arranged between the first screwing block 21 and the second step surface, a laminating block 212 extending into the water passing section 313 and laminating on the left side of the first sealing gasket is convexly arranged at the right side of the first screwing block 21, the laminating block 212 is provided with a transition part and a laminating part positioned at the right side of the transition part, the transition part is positioned at the right inner side of the first screwing block 21, the transition part is positioned in the extending section 312, namely, the outer diameters of the first screwing block 21, the transition part and the laminating part are gradually expanded from left to right, and the first screwing block 21 is provided with a second sealing gasket 211, the inner diameters of the transition part and the overlapping part are consistent, the overlapping part extends into the left side of the water passing section 312, and the right side surface of the overlapping part is in close fit with the first sealing gasket 2211; when in assembly, the right rod part 222 is sleeved with a tensioning spring, the right rod part 222 extends into the extending port of the second screwing block 23, the second screwing block 23 extends into the embedded section 314 from the opening port of the screwing section 311, the second screwing block 23 is screwed with the embedded section 314 together through the third external thread and the third internal thread, the overlapping part extends into the water passing section 312 and is contacted with the first sealing gasket 2211, and finally the first screwing block 21 is screwed with the screwing section 311 under the cooperation of the fourth external thread and the fourth internal thread; meanwhile, the provision of the lamination portion enables the first sealing gasket 2211 to be more closely attached to the left sealing portion 221.

In the ball valve device with the check valve, when the ball valve is assembled, a ball 11 enters a hollow cavity of a second mounting section 33 from the right opening of the second mounting section 33, a closed-loop convex ring 41 of a sealing cover is screwed into the right end of the second mounting section 33, a second screwing block 23 enters an embedded section 314 from the left opening of a screwing section 311 and is screwed with the embedded section, a right rod part 222 of a moving block 22 is sleeved with a tensioning spring to extend into an extending port of the second screwing block, a sealing gasket 2211 is arranged on the left side of a left sealing part 221 in a cushioning mode, a laminating part is laminated on the sealing gasket 2211 to enable the left sealing part 221 to be in sealing fit with the screwing section 311, and finally the first screwing block 21 is screwed on the screwing section 311 to complete the assembly; when the sealing device is applied, water flow enters from the opening of the first screwing block 21, the water flow impacts the left sealing part 221, the left sealing part 221 is compressed rightwards under the action of the tensioning spring, and a space is formed between the left sealing part 221 and the overlapping part, so that the water flow passes through the water passing hole and finally flows out, and meanwhile, the sealing cover 4 and the water outlet are matched to facilitate water discharge in the first installation section; compared with the prior art, the shell is formed by the body 3 and the sealing cover 4, the ball enters from the right opening of the body 3, the check valve enters from the left side of the body, the length of the body is not required to be increased to facilitate installation, the length of the whole shell is saved, the material cost is lower, the screw-on section 41 is screwed out of the water outlet when encountering cold weather, water in the first installation section 31 is discharged, and the situation that the check valve core cannot move due to freezing of the water in the first installation section 31 can be avoided.

In the present utility model, preferably, the outer side wall of the top surface of the second mounting section 33 is provided with a mounting block 331 in an upward protruding manner, the mounting block 331 is provided with a mounting cavity extending in an up-down direction and communicated with the hollow cavity of the second mounting section 33, the valve rod 12 is vertically arranged in the mounting cavity, the outer side wall of the valve rod 12 is embedded with an O-ring (not shown in the figure) in sealing fit with the mounting cavity, the inner top surface of the second mounting section 33 is provided with a limiting groove which is communicated with the mounting cavity and is located below the mounting block 331 in an upward protruding manner, the lower end of the valve rod 12 is provided with a limiting block 121 protruding downward and capable of extending into the limiting groove, a space is provided between the top surface of the limiting block 121 and the top surface of the limiting groove, a sealing tetrafluoro gasket is arranged in the space, the bottom surface of the limiting block 121 is provided with a clamping block 1211 protruding downwards into the upper end of the sphere, the top surface of the sphere 11 is provided with a clamping groove for clamping the clamping block 1211, the top surface of the valve rod 12 is fixedly connected with a handle part 6, the handle part 6 is provided with a guide sleeve 61 and a handle 62, the upper end of the guide sleeve 61 is fixedly connected with the upper end of the valve rod 12, the lower end of the guide sleeve 61 is sleeved outside the upper end of the mounting block 331, one end of the top surface of the mounting block 331 is provided with a non-closed-loop groove 100 communicated with the hollow space of the mounting block 331 in a downward manner, the inner side wall of the guide sleeve 61 is provided with a limiting block 611 overlapped on the bottom of the non-closed-loop groove 100 in a protruding manner, the handle 62 is horizontally arranged along the left-right direction, and the left end of the handle 62 is mounted with the guide sleeve 61; when the valve rod is used, the ball 11 enters the hollow cavity of the second mounting section 33 from the opening of the second mounting section 33 and the clamping block 1211 stretches into the clamping groove, so that the control connection between the ball 11 and the valve rod 12 is realized, meanwhile, the valve rod 12 is not easy to separate from the mounting block 331 under the action of the limiting block 121, and the valve rod is not easy to separate due to the matching of the non-closed-loop groove 100 and the limiting block 611; in addition, the guide sleeve 61 is sleeved outside the mounting block 331 to avoid the deflection of the valve rod 12 in the use process, and the sealing of the tetrafluoro gasket also prevents water flow from entering the valve rod 12, so that the valve rod is not easy to damage.

In the present utility model, preferably, the handle member 6 has a guide sleeve 61 and a handle 62, the top surface of the valve rod 12 is flush with the top surface of the installation block 331, an inner non-closed-loop groove communicated with the hollow space of the installation block 331 is concavely arranged on the outer side wall of the installation block 331, the handle is horizontally arranged along the left-right direction, a screw groove for screwing one end of the handle into is concavely arranged on the outer side wall of the valve rod 12, the screw groove is oppositely arranged with the inner non-closed-loop groove, the guide sleeve 61 is sleeved outside the upper end of the installation block 331, an outer non-closed-loop groove matched with the inner non-closed-loop groove in size is concavely arranged on the outer side wall of the guide sleeve 61, namely, an external thread is arranged on the outer side wall of the left end of the handle 62, an internal thread is arranged in the screw groove, and the left end of the handle 62 sequentially penetrates through the outer non-closed-loop groove, the inner non-closed-loop groove and the screw groove to be screwed with the valve rod 12 together; when the ball valve is applied, the handle 62 is rotated, the handle 62 rotates in the outer non-closed-loop groove and the inner non-closed-loop groove, and the handle 62 is screwed on the valve rod 62, so that the valve rod 12 can be driven to rotate when the handle 62 rotates, and the ball 11 is driven to rotate by the embedded block 1211; in addition, the handle 62 can rotate in the outer non-closed-loop groove and the inner non-closed-loop groove under the action of the guide sleeve 61, so that the handle is not easy to deviate.

In the present utility model, preferably, the inner diameter of the embedded section 314 is larger than the inner diameter of the transition section 32, a third step surface is formed between the embedded section 314 and the transition section 32, the right side surface of the second screw block 23 is closely attached to the third step surface, the left side surface of the second screw block 23 is provided with a plurality of water passing columns 231 protruding leftwards, the second screw block is provided with water passing ports communicated with the intervals between the water passing columns, the water passing columns 231 are uniformly arranged at intervals along the circumferential direction, the left end of each water passing column 231 is located within the extending section 312, the left end of each water passing column 231 is internally provided with a bump in an inward protruding manner, that is, the inner diameter of the bump is smaller than the inner diameter of each water passing column, the left sealing part 221 is located between the bumps, the left end surface of the left sealing part 221 is a protruding cambered surface protruding leftwards, the leftwards end of the leftwards sealing part 221 is located at the left side of each water passing column 231, the outer side wall of the left sealing part 221 is closely attached to each bump, the first screwing block 21 is provided with a horizontal straight part and a vertical part positioned at the left side of the horizontal straight part, the horizontal straight part stretches into the stretching-in section 312 and is screwed with the outer side wall of the water column 231, one end of the vertical part, which is opposite to the moving block 22, stretches into the screwing section 311 and is screwed with the screwing section 311, a fourth step surface is formed between one end of the vertical part, which faces the moving block 22, and the horizontal straight part, a sealing gasket 2311 is arranged between the fourth step surface and the left side surface of each water column 231, the outer side of the sealing gasket 2311 is closely matched with the left side of each bump, the inner side of the sealing gasket 2311 is closely matched with the left sealing part 221, the left side surface of the vertical part is concavely provided with an embedded groove to the right, the left side surface of the vertical part is flush with the left side surface of the screwing section 311, the left sides of the vertical part and the screwing section 311 are provided with sealing embedded rings 7 which stretch into the embedded grooves, namely the sealing embedded rings 7 are provided with the vertical part and the right side of the horizontal part, the right side wall part of the vertical part is in close fit with the left side wall of the screwing section 311, the right side wall part of the vertical part is in close fit with the left side wall of the vertical part, and the transverse part is tightly embedded in the embedded groove; when the sealing device is assembled, the right rod part 222 is sleeved with the tensioning spring, the right rod part 222 extends into the extending opening of the second screwing block 23, the second screwing block 23 extends into the left side of the third step surface from the opening of the screwing section 311, meanwhile, the sealing gasket 2311 is arranged on the left side surface of the fourth step surface and the left side surfaces of the water passing columns 231, the sealing gasket 2311 enables the water passing columns 231 to be in sealing fit with the left sealing parts 221, the transverse straight parts extend into the extending section 312, the transverse straight parts are screwed on the water passing columns 231, the vertical parts are screwed with the screwing section 311, finally the transverse parts of the sealing embedding rings 7 are embedded into the embedding grooves, and the sealing property between the screwing section 311 and the vertical parts is enhanced by the sealing embedding rings 7; when the water flow impacts the left sealing part 22 from left to right, the left sealing part 22 is compressed rightwards under the compression action of the tensioning spring to be far away from the convex blocks, and at the moment, a space is generated between the left sealing part 22 and each water passing column 231, so that the water flow flows out from the water passing port.

In the present utility model, preferably, the right side of the cover 4 is externally connected with a connecting pipe 8, the cover 4 is rightward provided with a right screw fitting block 42 screwed with the connecting pipe in a protruding manner, the connecting pipe 8 is in a closed-loop pipe body structure, the left end of the connecting pipe 8 is provided with a fitting block 81 in sealing fit with the right end face of the right screw fitting block 42, the fitting block 81 is provided with a screw fitting convex ring 811 sleeved outside the right screw fitting block 42 and screwed with the right screw fitting block 42, i.e. the right end outer side wall of the right screw fitting block 42 is provided with an external thread, the inner side wall of the screw fitting convex ring is provided with an internal thread matched with the external thread, the external thread and the internal thread adopt a circular thread, the outer diameter of the screw fitting convex ring is consistent with the outer diameter of the second mounting section 33, and a flat gasket 421 is clamped between the right end face of the right screw fitting block 42 and the fitting block 81; during application, the right screwing block 42 is screwed with the screwing convex ring 811 through the matching of the external thread and the internal thread, water flow is prevented from flowing out of a gap between the right screwing block 42 and the connecting pipe 8 under the action of the flat gasket, moreover, dirt accumulation and mechanical damage can be prevented by the round thread, and compared with the edge of the sharp thread, the edge of the round thread is not easy to damage and is more wear-resistant.

The attaching block 81 is in a closed-loop structure, a closed-loop groove is concavely formed in the outer side wall of the right end part of the attaching block 81 towards the center direction of the connecting pipe 8, the screwing convex ring 811 is in a closed-loop structure, and a pressing block 8111 embedded in the closed-loop groove is convexly arranged on the inner side wall of the screwing convex ring; when the connecting pipe 8 is applied, the screwing convex ring 811 is screwed in the direction of the sealing cover 4, the compression block 8111 is driven to move leftwards, and the compression block 8111 presses the bonding block 81 leftwards at the moment, so that the bonding block 81 is clamped between the right screwing block 42 and the compression block 8111, the connecting pipe 8 is firmly installed, and meanwhile, the connecting pipe is convenient to install.

The form of the present utility model is not limited to the illustrations and examples, and any person who performs a similar idea of the present utility model should be regarded as not departing from the scope of the patent of the utility model.

Claims

1. The ball valve device with the check valve comprises a shell, a ball valve and a check valve, wherein the shell is a hollow body with two open ends, the ball valve and the check valve are detachably arranged in the shell, and the water inlet direction of the shell is from left to right; the method is characterized in that: the shell is provided with a body and a sealing cover, the body is provided with a first installation section, a transition section and a second installation section which are sequentially arranged from left to right, the inner diameter of the transition section is smaller than that of the first installation section and that of the second installation section, the left end of the sealing cover is screwed in the second installation section, the ball valve is positioned in the second installation section, sealing gaskets which are tightly adhered to the outer side wall of the ball valve are respectively arranged at the left end faces of the transition section and the sealing cover, the bottom surface of the first installation section is provided with a water outlet, the body is screwed with a sealing cover for sealing the water outlet, the check valve is provided with a first screwing block, a moving block and a second screwing block, the first screwing block and the second screwing block are both screwed in the first installation section, the first screwing block is positioned outside the left side of the moving block and is in sealing fit with the first installation section, the moving block is provided with a left sealing part and a right rod part, the second screwing block is positioned on the right side of the first screwing block, the left sealing part is in sealing fit with the first screwing block, and the right rod part movably passes through the second screwing block and the left tensioning part is provided with a spring between the left tensioning part and the second screwing block.

2. A ball valve assembly with a check valve as in claim 1 wherein: the sealing cover is provided with a closed-loop-shaped convex ring extending into the right side of the second installation section, the closed-loop-shaped convex ring is in threaded connection with the second installation section, the left side surface of the closed-loop-shaped convex ring is concavely provided with a right closed-loop-shaped groove communicated with the hollow space of the closed-loop-shaped convex ring to the right, a first step surface is formed between the inner side wall of the transition section and the inner side wall of the second installation section, the right side surface of the first step surface is concavely provided with a left closed-loop-shaped groove communicated with the hollow space of the transition section to the left, the right closed-loop-shaped groove and the left closed-loop-shaped groove are embedded with the sealing gaskets, the ball valve is provided with a ball body and a valve rod, the outer side wall of the ball body is in close fit with each sealing gasket, and the valve rod is in control connection with the ball body.

3. A ball valve assembly with a check valve as in claim 2 wherein: the utility model discloses a valve rod, including the top surface lateral wall of second installation section, the top surface lateral wall of second installation section is gone up to protruding being equipped with the installation piece, has seted up on the installation piece along upper and lower direction extension and the installation cavity that is linked together with the cavity of second installation section, the valve rod erects to set up in the installation cavity, inlays on the lateral wall of valve rod to be equipped with the O type circle of installation cavity sealing fit, the interior top surface of second installation section is gone up concave being equipped with and is linked together with the installation cavity and is in the spacing groove of installation piece below, the lower extreme tip of valve rod is gone down protruding to be equipped with the stopper that can stretch into in the spacing groove, has the interval between the top surface of stopper and the groove top of spacing groove, the bottom surface of stopper is gone down protruding to be equipped with to stretch into the embedded block in the spheroid upper end, fixedly connected with handle part on the top surface of valve rod.

4. A ball valve assembly with a check valve as in claim 3 wherein: the handle part has uide bushing and handle, and the top surface of valve rod flushes with the top surface of installation piece, and the lateral wall of installation piece is concave to be equipped with the interior non-closed loop shape recess that is linked together with the cavity space of installation piece, and the handle lies horizontally along the direction setting, and the lateral wall of valve rod is concave to be equipped with the spiral shell dress groove that supplies the one end spiral shell dress of handle in interior, and spiral shell dress groove sets up with interior non-closed loop shape recess relatively, and the uide bushing cover is established outside the upper end of installation piece, and the lateral wall of uide bushing is concave to be equipped with interior non-closed loop shape recess size assorted outer non-closed loop shape recess.

5. A ball valve assembly with a check valve as in claim 1 wherein: the bottom surface of first installation section upwards concave be equipped with the above-mentioned outlet that is linked together of cavity of first installation section, sealed lid has spiral shell dress section and is in the sealed laminating section of spiral shell dress section below, spiral shell dress section spiral shell closes and installs in the outlet, the top surface of sealed laminating section and the bottom surface of first installation section match that pastes.

6. A ball valve assembly with a check valve as in claim 1 wherein: the first installation section has from left to right the spiral shell section that sets gradually, stretches into the section, water section and inlays the dress section, stretches into the internal diameter of section and is less than the internal diameter of spiral shell section, and the internal diameter of water section is greater than the internal diameter of inlaying the dress section, and the second spiral shell is in inlaying the dress section, is equipped with on the second spiral shell piece and supplies right pole portion to stretch into the mouth that stretches into in, and is equipped with the water mouth that is in the mouth that stretches into outward on the second spiral shell piece.

7. A ball valve assembly with a check valve as in claim 6 wherein: the second screw block is screwed in the embedded section, the inner diameter of the extending section is smaller than the inner diameter of the water passing section, the outer diameter of the left sealing part is smaller than the outer diameter of the water passing section, a first sealing gasket is arranged on the left side of the left sealing part, a second step surface is formed between the inner side wall of the extending section and the inner side wall of the screw section, the first screw block is screwed in the screw section, a second sealing gasket is arranged between the first screw block and the second step surface, and a pressing block extending into the water passing section and pressing on the left side of the first sealing gasket is arranged on the right side surface of the first screw block in a protruding mode.

8. A ball valve assembly with a check valve as in claim 6 wherein: the inner diameter of the embedded section is larger than that of the transition section, a third step surface is formed between the embedded section and the transition section, and the right side surface of the second screwing block is closely attached to the third step surface.

9. A ball valve assembly with a check valve as in claim 8 wherein: the left side face of the second screwing block is provided with a plurality of water passing columns in a protruding mode to the left, the second screwing block is provided with the water passing ports communicated with the intervals among the water passing columns, the water passing columns are evenly arranged at intervals along the circumferential direction, the left end of each water passing column is located in a range of extending into a section, the end part of the left end of each water passing column is provided with a protruding block in an inwards protruding mode, the inner diameter of the protruding block is smaller than the inner diameter of each water passing column, the left sealing part is located between the protruding blocks, the left end face of the left sealing part is a protruding cambered surface protruding to the left, the first screwing block is provided with a horizontal straight part and a vertical part located on the left side of the horizontal straight part, the horizontal straight part extends into the extending section and is screwed with the water passing column together, one end of the vertical part back to the moving block extends into the screwing section and is screwed together with the screwing section, a fourth step face is formed between one end of the vertical part facing the moving block and the horizontal straight part, and a sealing gasket is arranged between the fourth step face and the left side face of each water passing column.

10. A ball valve assembly with a check valve as in claim 9 wherein: the left side face of the vertical portion is concavely provided with an embedded groove to the right, the left side face of the vertical portion is flush with the left side face of the screwing section, and the left sides of the vertical portion and the screwing section are provided with sealing embedded rings extending into the embedded groove.