CN218267270U

CN218267270U - Valve gate

Info

Publication number: CN218267270U
Application number: CN202222622976.5U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shanghai Box Intelligent Technology Co Ltd
Current assignee: Shanghai Box Intelligent Technology Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-10
Anticipated expiration: 2032-09-30

Abstract

The embodiment of the utility model discloses valve, including valve body, valve rod, case, driver and connecting piece, have the passageway in the valve body and be equipped with the valve rod hole and hold the valve rod with the part, the valve body has export and the entry with outside intercommunication, and the case is articulated mutually with the valve body in the entrance, and the case includes case body and case body towards the convex locking post of outlet side. The driver is detachably connected with the valve rod and is matched with the connecting piece, so that the rotary motion of the valve rod is transmitted to the valve core through the connecting piece and converted into the motion for driving the valve core to rotate around the hinge axis, the valve core opens or closes the channel, the valve also comprises a locking device which extends into the valve body and is fixedly connected with the valve rod, and the joint of the locking column at the joint of the connecting piece and the valve core body is positioned at two sides of the center of the valve core; when the valve core closes the channel, the locking device is connected with the valve core and provides a pulling force for the locking column from the inlet to the outlet. The valve can still ensure the sealing performance after being opened and closed for many times.

Description

Valve gate

Technical Field

The utility model relates to a valve field, in particular to valve.

Background

The existing valve for the medium-sized bulk storage container is provided with a valve core, wherein a middle rotating shaft of the valve core is selected as an opening mode of a butterfly valve, and two sides of the valve core are driven to rotate and open. Because of the friction between the butterfly valve sealing ring and the valve body, the force for opening and closing the valve is large, and usually, a connecting piece is used for connecting the driver and the valve core, so that the driver drives the valve core to open and close. And the connecting piece is connected with the valve core pin shaft, and the locking force on the valve core is insufficient at the moment. When the valve is opened, the flow in the valve is large, and after the valve is opened and closed for many times, the connecting piece is easy to deform, so that the locking force on the valve core and the sealing performance of the valve are poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve, this valve still can guarantee sealing performance after opening and close many times, prolongs the life of valve.

In order to solve the technical problem, an embodiment of the present invention provides a valve, including a valve body, a valve rod, a valve core, a driver and a connecting member; the valve body is internally provided with a passage and a valve rod hole for at least partially accommodating the valve rod, the valve body is provided with an outlet communicated with the outside and an inlet, and the valve core is hinged with the valve body at the inlet; the valve core comprises a valve core body and a locking column, wherein the valve core body protrudes towards the outlet side;

the driver is detachably connected with the valve rod and is matched with the connecting piece, so that the rotary motion of the valve rod is transmitted to the valve core through the connecting piece and converted into the motion for driving the valve core to rotate around the hinge axis through the connecting piece, and the valve core opens or closes the channel;

the valve also comprises a locking device which extends into the valve body and is fixedly connected with the valve rod; after the valve core closes the channel, the locking device is connected with the locking column, and the joint of the connecting piece and the valve core body and the locking column are respectively positioned at two sides of the center of the valve core;

when the valve core closes the channel, the locking device is connected with the valve core and provides the locking column with pulling force in the direction from the inlet to the outlet.

The utility model discloses an embodiment increases locking device for prior art, when the valve is closed, not only the connecting piece has a power towards valve body export direction to the case, locking device also has a power towards valve body export direction to the case moreover, even the connecting piece warp after the valve is opened and close many times, still there is locking device to have a power towards valve body export direction to the case for case and valve body zonulae occludens and closed passage, can not influence the locking force to the case and the leakproofness of valve.

In one embodiment, a projection projects from the locking device;

when the valve core closes the channel, the convex part provides a pulling force for the locking column from the inlet to the outlet.

In one embodiment, the convex part protrudes towards the valve rod direction, and the locking column is provided with a connecting part connected with the valve core body and a locking hook part connected with one side of the connecting part, which is far away from the valve core body; and the lock hook part is connected with the connecting part in a bending way and extends towards one side of the locking device with the bulge.

In one embodiment, the latch hook portion has a first sidewall facing the cartridge body; the bulge is provided with a locking surface, when the valve core closes the channel, the locking surface deviates from the valve core body, the first side wall is abutted against the locking surface, and the locking surface provides a pulling force in the direction from the inlet to the outlet for the first side wall.

In one embodiment, the projection has an initial side and a terminal side, the first sidewall being adjacent the terminal side when the spool closes the passage;

a guide portion is connected to the initial side and projects out of a side edge of the locking device.

In one embodiment, the guide part is provided with a guide surface connected with the locking surface, the locking surface and the guide surface are both cambered surfaces protruding outwards in the direction departing from the axis of the locking device, and the locking surface and the guide surface are on the same cambered surface;

the distance between the locking surface and the axis of the locking device and the distance between the guide surface and the axis of the locking device are gradually reduced from the initial side to the tail end side, and when the valve core closes the channel, the first side wall is sequentially abutted against the guide surface and the locking surface.

In one embodiment, the locking surface is a cambered surface which is convex outwards in the direction away from the axis of the locking device; wherein the projection has an initial side and a distal side, and a distance between the locking surface and an axis of the locking device is gradually reduced from the initial side to the distal side.

In one embodiment, the projection is connected with the locking device, and the projection is also provided with a stop surface;

the locking device is provided with a side wall surface which is opposite to and isolated from the locking surface, and the stop surface is connected with the locking surface and the side wall surface;

when the valve core closes the channel, at least part of the locking column is abutted to the stop surface.

In one embodiment, when the protrusion is located between the valve core body and the locking column, the protrusion provides a pulling force to the locking column in a direction from the inlet to the outlet.

In one embodiment, the projection has an interference fit with the locking post.

In one embodiment, the locking device comprises: the two ends of the supporting rod are respectively and fixedly connected with the valve rod and the locking piece;

the bulge part is arranged on the locking part in a protruding mode and surrounds the periphery of the supporting rod in the axial direction;

the locking column is provided with a connecting part connected with the valve core body and a locking hook part connected with one side of the connecting part, which is far away from the valve core body; and the locking hook part is bent and connected with the connecting part and faces the locking part towards one side of the supporting rod.

In one embodiment, the side of the valve body facing the channel is provided with a blind hole for receiving part of the locking element, and the protrusion is arranged outside the blind hole.

In one embodiment, the valve rod is provided with a first mounting hole and a second mounting hole, the first mounting hole is perpendicular to the extending direction of the second mounting hole, and at least part of the first mounting hole is communicated with the second mounting hole;

the driver is provided with a first mounting column and a second mounting column, and the first mounting column and the second mounting column are operatively inserted into the first mounting hole;

one side of the support rod, facing the valve rod, penetrates through the second mounting hole and is partially located in the first mounting hole, and the portion, located in the first mounting hole, of the support rod is clamped between the first mounting column and the second mounting column.

In one embodiment, the angle range of the rotation of the support rod driven by the valve rod is between 160 ° and 170 °.

In one embodiment, the support rod has a minimum outer profile area toward the valve cartridge when the opening between the valve cartridge and the valve body is at a maximum.

In one embodiment, the support rod is a cuboid structure, the support rod is provided with a pair of oppositely arranged first side surfaces and a pair of oppositely arranged second side surfaces, the first side surfaces and the second side surfaces are connected at intervals, and the area of the first side surfaces is larger than that of the second side surfaces;

wherein the second side surface faces the valve element when the opening between the valve element and the valve body is maximized.

In one embodiment, a connecting line between the joint of the connecting piece and the valve core body and the locking column passes through the center of the valve core;

the locking column is provided with a connecting part connected with the valve core body and a locking hook part connected with one side of the connecting part, which is far away from the valve core body; and the lock hook part is connected with the connecting part in a bending way and extends towards the connecting part of the connecting part and the valve core body.

In one embodiment, a distance from the center of the valve core body to the center of the connection part of the locking column and the valve core body is m, a distance from the center of the valve core body to the boundary of the valve core body facing the inlet side is n, and a connecting line from the center of the valve core body to the boundary of the valve core body facing the inlet side passes through the center of the connection part of the locking column and the valve core body; m/n ranges from 1/3 to 2/3.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is an exploded view of a valve according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a valve according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a valve body according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a driver according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a connector according to an embodiment of the present invention;

fig. 6 is a schematic view of the structure of the driver and the connector according to an embodiment of the present invention;

fig. 7 is a schematic view of the valve core and the connecting member according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a valve according to an embodiment of the present invention;

fig. 9 is an exploded view of the handle, valve stem and locking device combination of one embodiment of the present invention;

fig. 10 is a schematic structural view of a valve cartridge according to an embodiment of the present invention;

FIG. 11 is a schematic view of a retaining member according to an embodiment of the present invention;

FIG. 12 is a schematic view of the side of the retaining member facing the channel according to one embodiment of the present invention;

fig. 13 is a schematic view of a valve according to an embodiment of the present invention when closed;

figure 14 is a cross-sectional view of a valve according to an embodiment of the present invention;

fig. 15 is a schematic view of the valve stem and handle combination according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a driver according to an embodiment of the present invention;

fig. 17 is a schematic view of the valve cartridge, connector, valve stem and handle of an embodiment of the present invention when the valve is opened to maximum flow;

fig. 18 is a schematic view of the structure of the valve cartridge, the connecting member, the valve stem and the handle when the valve is closed according to an embodiment of the present invention.

Reference numerals:

100. a valve; 10. a valve body; 11. a channel; 12. a valve stem bore; 13. blind holes; 20. a valve stem; 21. a first mounting hole; 22. a second mounting hole; 30. a valve core; 31. a valve core body; 32. a first hinge shaft; 33. a second hinge shaft; 34. a first protrusion; 35. a second protrusion; 36. a locking post; 361. a connecting portion; 362. a latch hook portion; 37. a first side wall; 40. a driver; 41. a fixed end; 411. upper arm, 412, lower arm; 413. a middle arm; 42. a guide end; 43. a first mounting post; 44. a second mounting post; 50. a connecting member; 51. opening the guide pillar; 52. pulling back the guide pillar; 53. a body; 54. a first connecting pin; 55. a second connecting pin; 60. a handle; 70. a valve cover; 80. an anti-theft buckle; 90. a locking device; 91. a projection; 911. an initial side; 912. a terminal side; 92. a locking surface; 93. a guide portion; 931. a guide surface; 94. a stop surface; 95. a side wall surface; 96. a support bar; 961. a first side surface; 962. a second side surface; 97. a locking member; a. and (4) an angle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.

Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be interpreted as words of convenience and should not be interpreted as limiting terms.

Embodiments of the present invention are described below with reference to the drawings.

An embodiment of the present invention provides a valve 100, and the valve 100 includes a valve body 10, a valve rod 20, a valve core 30, a driver 40, and a connector 50. The valve body 10 has a passage 11 therein and is provided with a stem bore 12 to at least partially receive the stem 20, and the valve cartridge 30 is hinged to the valve body 10. The driver 40 is detachably connected to the valve stem 20 and cooperates with the connector 50 such that a rotational movement of the valve stem 20 is transmitted to the valve core 30 through the connector 50 via the connector 50 and converted into a movement that drives the valve core 30 to rotate about the hinge axis such that the valve core 30 opens or closes the passage 11.

Specifically, as shown in fig. 1 and 2, the valve 100 includes a valve body 10, a handle 60, a connector 50, a valve cartridge 30, an actuator 40, and a valve stem 20. The valve core 30 is connected to the valve body 10 by a hinge, and the hinge is composed of a hinge shaft provided on the valve core 30 and a hinge hole provided on the valve body 10. The handle 60 is fixed to the valve stem 20, and when the handle 60 is rotated, the valve stem 20 is rotated along the axis of the valve stem hole 12 in accordance with the rotation of the handle 60. The valve stem 20 is connected to the valve cartridge 30 through a connector 50 and an actuator 40. The connecting element 50 and the driver 40 have a transmission function of transmitting the action of the valve rod 20 to the valve core 30, so that when the handle 60 is rotated, the handle 60 drives the valve rod 20 to rotate, the valve rod 20 drives the driver 40 and the connecting element 50 to act, and the action of the connecting element 50 drives the valve core 30 to act, so that the valve is opened and closed. The valve body 10 may further include a valve cap 70 on a side away from the valve core 30, and the valve cap 70 may further include an anti-theft button 80.

Fig. 3 shows a perspective view of the valve body 10 of the valve 100 according to an embodiment of the present invention, the valve body 10 is a housing, and may have a passage 11 inside, and the passage 11 may allow fluid to pass through. The left and right sides of the drawing are respectively an outlet and an inlet for communicating the container in which the valve 100 is located with the outside, the direction of the arrow W shown in fig. 2 is the direction from the inlet to the outlet, the valve core 30 is arranged at the inlet, and the outlet is connected with the valve cover 70. The upper end of the valve body 10 forms a stem bore 12 along a vertical axis perpendicular to the horizontal axis.

The valve rod 20 is partially accommodated in the valve rod hole 12, the upper portion of the valve rod 20 is provided with two protrusions, the two protrusions are provided with oppositely arranged pin holes, the handle 60 is clamped between the two protrusions, two sides of the handle 60 are provided with two pin shafts, and the two pin shafts are correspondingly inserted into the two pin holes.

Fig. 4 shows a schematic structural diagram of the actuator 40 of the valve 100, the actuator 40 includes a fixed end 41 connected to the valve stem 20 and a guide end 42 engaged with the connector 50, and the outer surfaces of both sides of the guide end 42 are respectively provided with a push-out profile and a pull-back profile, which are engaged with the opening guide post 51 and the pull-back guide post 52 of the connector 50 to realize the transmission of motion, which will be further detailed below.

In fig. 4, a push-out portion and a limit portion are sequentially disposed on the push-out contour on the left side of the guide end 42 of the driver 40 along a direction away from the free end, so that in the opening process of the valve 100, the push-out portion cooperates with the opening guide pillar 51 to push the connecting member 50 to move, so as to drive the valve core 30 to open the channel 11, and when the valve 100 is completely opened, the opening guide pillar 51 of the connecting member 50 is separated from the push-out portion and enters the limit portion, preferably, the limit portion is a groove. During the closing of the valve 100, the pull-back profile, which may be curved or flat, cooperates with the opening and pull-

back posts

51, 52 of the connecting element 50.

The fixed end 41 of the actuator 40 has a substantially E-shape, and the upper arm 411 and the lower arm 412 of the E-shape have elasticity such that the actuator 40 does not fall out of the first mounting hole 21 without being manually removed when the intermediate arm 413 of the actuator 40 is inserted into the first mounting hole 21. After the upper arm 411 and the lower arm 412 of the actuator 40 are assembled to the valve rod 20, the actuator 40 always has a force of tightly holding the valve rod 20, so that the actuator 40 cannot fall off, when the valve rod 20 rotates, the actuator 40 and the valve rod 20 rotate synchronously, and only the artificial force is larger than the elastic force of the upper arm 411 and the lower arm 412 when the actuator is disassembled.

Fig. 5 shows a schematic structural diagram of a connecting member 50 of a valve 100 according to an embodiment of the present invention, and as shown in fig. 5, the connecting member 50 has a substantially U-shaped body 53, the ends of the two arms of the body 53 are provided with a first connecting pin 54 and a second connecting pin 55, one of the two arms of the connecting member 50 is further provided with an opening guide pillar 51 and a pull-back guide pillar 52, and the opening guide pillar 51 and the pull-back guide pillar 52 are spaced apart from each other and extend downward from the plane of the U-shape, so as to form a substantially square structure together with the U-shaped body 53. Preferably, the connecting member 50 is integrally formed by bending an elastic material. The opening guide post 51 and the pull-back guide post 52 are located at appropriate positions of the U-shaped body 53 such that the opening guide post 51 and the pull-back guide post 52 are respectively engaged with the push-out profile and the pull-back profile of the actuator 40, thereby achieving opening and closing of the valve 100. Specifically, as shown in fig. 6, after the assembly is completed, the guide end 42 of the actuator 40 extends into the square structure, so that during the opening process of the valve 100, the valve rod 20 drives the actuator 40 to rotate, then the opening guide post 51 is matched with the push-out profile to drive the connecting member 50 to move, and the connecting member 50 drives the valve core 30 to rotate, thereby opening the valve 100. In the pipe wall process of the valve 100, the valve rod 20 drives the connecting piece 50 to rotate, the pull-back guide pillar 52 is matched with the pull-back profile to drive the connecting piece 50 to move, the connecting piece 50 drives the valve core 30 to rotate, and the valve core 30 further seals the channel 11, namely the valve 100 is closed.

As shown in fig. 7, the valve body 30 has a disk-shaped valve body 31, the outer periphery of the valve body 31 is integrally provided with a first hinge shaft 32 and a second hinge shaft 33, the side surface of the valve body 31 near one end of the first hinge shaft 32 and the second hinge shaft 33 is protruded to form a first protrusion 34 and a second protrusion 35, and the first protrusion 34 and the second protrusion 35 are respectively provided with hinge holes (not shown) for accommodating a first connecting pin 54 and a second connecting pin 55 of a connector 50. When assembled, the valve stem 20 is partially received in the valve stem bore 12 of the valve body 10, and the actuator 40 is inserted into the first mounting bore 21 in the valve stem 20. The leading end 42 of the actuator 40 extends into the square-shaped formation on the connecting piece 50 to cooperate with the opening and retraction posts 51, 52. The hinge shaft of the valve core 30 is mounted to the hinge hole of the valve body 10, and since the connecting member 50 has a certain elasticity, the connecting member 50 will not fall off from the valve core 30 after assembly without manual disassembly.

As shown in fig. 8, the valve stem 20 is partially received in the valve stem hole 12 and rotatably retained on the valve body 10, the first connecting pin 54 and the second connecting pin 55 of the valve core 30 are respectively inserted into hinge holes on the valve body 10, so that the valve core 30 can rotate around the central axis of the hinge holes, the valve stem 20 is connected with the valve core 30 through the driver 40 and the connecting member 50, so that when the valve stem 20 is rotated, the valve stem 20 drives the connecting member 50 to move, and thus drives the valve core 30 to open or close the passage 11, i.e., to open or close the valve 100.

It should be noted that in the above embodiments, the components may have various modifications, for example, the handle 60 and the valve body 10 may be a single piece, the valve core 30 may be hinged to the valve body 10, a hinge hole may be provided on the valve core 30, a connecting pin may be provided on the valve body 10, and the like. In addition, the driver 40 and the connector 50 may have other configurations as long as the connector 50 is provided with a coupling pin for rotatably coupling with the hinge hole of the valve cartridge 30, and the driver 40 and the connector 50 are respectively provided with guide structures, such as a guide profile and a guide post, which are capable of cooperating with each other and moving synchronously with the valve stem 20. The guide profile can be provided on the driver 40, in which case the guide posts are provided on the connecting piece 50, or the guide profile can also be provided on the connecting piece 50, in which case the guide posts are correspondingly provided on the driver 40. The actuator 40 may be integral with the valve stem 20.

In this utility model, the valve 100 at least needs to include a valve body 10, a valve stem 20, a valve core 30, a driver 40 and a connector 50, the valve body 10 is internally provided with a passage 11 along an axial direction for fluid to pass through, as shown in fig. 1 and 3, the left side and the right side of the valve body 10 respectively form an outlet and an inlet communicated with a container and the outside, the inlet is connected with the valve core 30, the upper portion of the valve body 10 is provided with a valve stem hole 12 along a vertical axis perpendicular to a horizontal axis, the valve stem 20 is partially accommodated in the valve stem hole 12 so that the valve stem 20 can be rotated, the valve body 10 is hingedly connected with the valve core 30, a hinge shaft is provided on the valve body 10, the upper side of the valve core 30 is provided with a hinge hole in which the hinge shaft is relatively disposed on the valve body 10, the driver 40 is detachably connected with the valve stem 20 by its own structure and cooperates with the connector 50 so that the rotational motion of the valve stem 20 can be transmitted to the valve core 30 by the driver 40 via the connector 50 and converted into a motion that the valve core 30 rotates around the hinge shaft, and by this structure, the valve 100 can be opened and closed.

Specifically, the valve rod 20 is connected to the valve core 30 through the connecting element 50 and the actuator 40, the connecting element 50 and the actuator 40 transmit the motion of the valve rod 20 to the valve core 30, when the valve rod 20 rotates, the valve rod 20 drives the actuator 40 and the connecting element 50 to move, and the connecting element 50 drives the valve core 30 to move, so that the valve 100 is opened and closed. The actuator 40 includes a fixed end 41 coupled to the valve stem 20 and a guide end 42 engaged with the coupling member 50, and the outer surfaces of both sides of the guide end 42 are provided with a push-out profile and a pull-back profile. The push-out profile and the pull-back profile cooperate with the coupling element 50 to effect the transfer of motion. The body 53 of the connecting element 50 is substantially U-shaped, and the ends of the two arms are provided with a first connecting pin 54 and a second connecting pin 55, one of the two arms of the connecting element 50 is provided with an opening guide post 51 and a pull-back guide post 52, the opening guide post 51 and the pull-back guide post 52 are spaced from each other and perpendicular to the plane of the body 53, so as to form a square with the body 53 of the connecting element 50, and the opening guide post 51 and the pull-back guide post 52 are respectively matched with the push-out profile and the pull-back profile of the actuator 40 to open and close the valve 100. In the assembled state of the valve 100, the guiding end 42 of the actuator 40 extends into the shape of a "square" so that during the opening process, the valve rod 20 drives the actuator 40 to rotate, the opening guide post 51 is matched with the push-out profile to drive the connecting piece 50 to move, and then the transmission motion enables the connecting piece 50 to drive the valve core 30 to move, so that the valve 100 is opened. Accordingly, during closing, the valve stem 20 rotates the actuator 40, and the pull-back guide post 52 and the pull-back profile cooperate to move the coupling member 50, thereby transferring the movement such that the coupling member 50 drives the valve element 30 to move, thereby closing the valve 100.

In the prior art, the driver 40 is connected with the valve core 30 by using the connecting piece 50, so that the driver 40 drives the valve core 30 to open and close, the connecting piece 50 is connected with the valve core 30 through a pin shaft, the locking force of the connecting piece to the valve core 30 is insufficient, the flow passing through the valve body 10 is large when the valve core 30 is opened, and after the valve core 30 is opened and closed for many times, the connecting piece 50 is easy to deform, so that the locking force to the valve core 30 and the sealing performance of a valve are poor.

Therefore, an embodiment of the present invention provides a valve 100 further including a locking device 90 extending into the valve body 10 and fixedly connected to the valve rod 20, with reference to fig. 10, the valve core 30 includes a valve core body 31 and a locking column 36 protruding from the valve core body 31 toward one side of the valve body 10, when the valve core 30 closes the channel 11, the locking device 90 is connected to the locking column 36, the connection between the connection member 50 and the valve core body 31 and the connection between the locking device 90 and the locking column 36 are located at two sides of the center of the valve core 30, and the locking device 90 provides a pulling force from the inlet to the outlet for the locking column 36. The valve core 30 closes the passage 11, i.e. the valve 100 is closed.

The locking device 90 is added, when the valve 100 is closed, not only the connecting piece 50 has a force towards the outlet direction of the valve body 10 to the valve core 30, but also the locking device 90 has a force towards the outlet direction of the valve body 10 to the valve core 30, even if the connecting piece 50 is deformed after the valve 100 is opened and closed for a plurality of times, the locking device 90 still has a force towards the outlet direction of the valve body 10 to the valve core 30, so that the valve core 30 is tightly connected with the valve body 10 and the channel 11 is closed, and the locking force to the valve core 30 and the sealing performance of the valve cannot be influenced.

As shown in fig. 11, a protrusion 91 protrudes from the locking device 90, wherein the protrusion 91 pulls the locking post 36 after the valve core 30 closes the passage 11. That is, when the valve 100 is closed, the protrusion 91 of the locking device 90 snaps the locking post 36 protruding from the valve body 31, so that the valve body 31 is snapped into close contact with the valve body 10 to close the passage 11 of the valve body 10. The setting can be performed by those skilled in the art according to actual needs.

Further, as shown in fig. 9, the protrusion 91 protrudes toward the valve stem 20, the locking column 36 has a connecting portion 361 connected to the valve body 31, and a locking hook portion 362 connected to a side of the connecting portion 361 away from the valve body 31, and the locking hook portion 362 is bent and connected to the connecting portion 361 and extends toward a side of the locking device 90 having the protrusion 91, that is, the locking hook portion 362 extends downward. It should be understood that although the protrusion 91 protrudes toward the valve stem 20 in the present embodiment, in other embodiments, the protrusion 91 may be disposed at the bottom of the locking device 90, and the locking portion of the locking post 36 is bent upward without departing from the scope of the present invention, and the protrusion may be disposed by those skilled in the art according to actual needs.

Preferably, the latch hook 362 has a first side wall 37 facing the spool body 31, and the protrusion 91 has a latch face 92. And when the valve core 30 closes the channel 11, i.e. in the state shown in fig. 13, the locking surface 92 is away from the valve core body 31, the first sidewall 37 abuts against the locking surface 92, and the locking surface 92 provides a pulling force to the first sidewall 37 in the direction from the inlet to the outlet. After the valve 100 is closed, the first side wall 37 abuts against the locking surface 92, that is, the locking hook 362 and the protrusion 91 are tightly buckled and pulled, so the valve element 30 can be tightly attached to the valve body 10, and therefore the valve element 30 can completely close the channel 11 of the valve body 10, thereby ensuring the sealing performance of the valve 100, and those skilled in the art can set the valve according to actual needs.

Further, the projection 91 has an initial side 911 and a distal side 912, and the first side wall 37 approaches the distal side 912 when the spool 30 closes the passage 11, i.e., when the valve 100 is closed. The initial side 911 is connected with a guide portion 93, and the guide portion 93 protrudes outside a side edge of the lock device 90. During the closing of the valve 100, the latching hook 362 moves in the direction from the guide 93, the initial side 911 of the projection 91 to the distal end 912 of the projection 91, and when the latching hook 362 moves until the spool 30 closes the passage 11, the latching hook 362 moves to the distal end 912 of the projection 91, that is, the latching hook 362 moves toward the distal end 912 of the first side wall 37 of the spool body 31. And the guide part 93 is arranged at the initial side 911 of the protruding part 91, and the guide part 93 protrudes out of the side edge of the locking device 90, so that when the valve 100 is closed, the guide part 93 can hook the locking hook part 362 to a position close to the locking device 90 in advance, and plays a role of guiding the motion track of the locking hook part 362, and a person skilled in the art can arrange the guide part according to actual needs.

Furthermore, as shown in fig. 11, the locking surface 92 is a cambered surface that is convex in a direction away from the axis of the locking device 90, wherein the convex portion 91 has an initial side 911 and a distal side 912, and the distance between the locking surface 92 and the axis of the locking device 90 gradually decreases from the initial side 911 to the distal side 912. In the process of closing the valve 100, the movement locus of the latch hook portion 362 is in the process of gradually approaching the axis of the locking device 90 until the movement stops, so that the distance between the latch surface 92 and the axis of the locking device 90 is gradually reduced from the initial side 911 to the terminal side 912, so that the latch surface 92 can always be attached to the first side wall 37 in the movement process of the latch hook portion 362, and the latch surface does not deviate from the movement locus of closing the valve 100, and those skilled in the art can set the movement locus according to actual needs.

Preferably, as shown in fig. 11, the guide portion 93 has a guide surface 931 connected to the locking surface 92, the guide surface 931 is also a curved surface that is convex outward in a direction away from the axis of the locking device 90, and the locking surface 92 and the guide surface 931 are on the same curved surface. The distance between the guide surface 931 and the axis of the lock device 90 gradually decreases from the initial side 911 to the distal side 912. When the valve core 30 closes the passage 11, the first sidewall 37 sequentially abuts against the guide surface 931 and the locking surface 92. During the closing process of the valve 100, the movement locus of the locking hook portion 362 is gradually approaching the axis of the locking device 90 until the movement stops, so that the distances between the locking surface 92 and the guiding surface 931 and the axis of the locking device 90 are gradually reduced from the initial side 911 to the terminal side 912, so that the locking surface 92 and the guiding surface 931 can always fit the first sidewall 37 during the movement of the locking hook portion 362, and the deviation from the movement locus of the closed valve 100 is avoided, that is, the radian of the arc surfaces of the locking surface 92 and the guiding surface 931 is the same as the movement locus of the locking hook portion 362, and the locking hook portion 362 closely fits the locking surface 92 and the guiding surface 931, which can be set by a person skilled in the art according to actual needs. It can be understood that in some embodiments, the radian of the arc surfaces of the locking surface 92 and the guide surface 931 may be partially different from the movement locus of the locking portion 362, and after the valve 100 is closed, a supporting force exists between the locking surface 92 and the locking portion 362, or during the process of closing the valve, after the valve core moves partially, a supporting force exists between the locking surface 92 and the locking portion 362.

In addition, as shown in fig. 12, the projection 91 is connected to the locking device 90, and the projection 91 further has a stop surface 94, the locking device 90 has a side wall surface 95 spaced opposite the locking surface 92, and the stop surface 94 connects the locking surface 92 and the side wall surface 95. As shown in fig. 13, when the valve core 30 closes the passage 11, the locking pin 36 at least partially abuts against the stop surface 94. During the closing process of the valve 100, the latch hook 362 moves from the guide surface 931 to the locking surface 92 to the stop surface 94, and when the latch hook 362 moves to abut against the stop surface 94, the valve element 30 stops rotating, and the valve 100 is closed. The stop surface 94 is provided to limit the movement of the latch portion 362 after the valve 100 is closed, and can be set by one skilled in the art as desired.

Further, when the projection 91 is located between the spool body 31 and the lock post 36, the projection 91 provides a pulling force to the lock post 36 in the inlet-to-outlet direction. That is, during the closing process of the valve 100, the protrusion 91 always pulls the locking post 36, specifically, the protrusion 91 and the locking device 90 form a groove-like structure, the locking post 36 moves in the groove, the protrusion 91 can be disposed on the top surface of the locking device 90, the locking post 36 is downward pulled with the protrusion 91, and the protrusion 91 can also be disposed on the bottom surface of the locking device 90, the locking post 36 is upward pulled with the protrusion 91. That is, when the valve 100 is closed, the protrusion 91 of the locking device 90 snaps the locking post 36 protruding from the valve body 31, so that the valve body 31 is snapped into close contact with the valve body 10 to close the passage 11 of the valve body 10. In other embodiments, the projections 91 do not always snap over the locking post 36 during the closing of the valve 100. The setting can be performed by those skilled in the art according to actual needs.

In addition, the projection 91 is interference fit with the locking post 36. The protrusion 91 can tightly pull the locking post 36, that is, the valve element 30 is tightly fitted with the valve body 10, so as to ensure the sealing performance of the valve 100.

Specifically, as shown in fig. 9, the locking device 90 includes a support rod 96 and a locking member 97, and the valve rod 20 and the locking member 97 are fixedly connected to both ends of the support rod 96. As shown in fig. 11 and 12, the projection 91 is provided on the lock 97 in a projecting manner, and the projection 91 is wound around the outer periphery of the support lever 96 in the axial direction. As shown in fig. 10, the locking column 36 has a connecting portion 361 connected to the valve body 31, and a locking hook portion 362 connected to a side of the connecting portion 361 facing away from the valve body 31, and the locking hook portion 362 is bent and connected to the connecting portion 361 and extends toward a side of the locking member 97 facing the support rod 96. This arrangement allows the protrusion 91 to be disposed on the top of the locking member 97, and the locking hook 362 to be bent downward, so that after the valve 100 is closed, the top end of the valve core 30 has a force toward the valve body 10 through the connecting member 50, and the lower portion of the valve core 30 has a force toward the valve body 10, so that the sealing performance of the valve 100 is ensured. The structure of the locking device 90 is not limited to the structure shown in the figure, and the locking device 90 may be a rod body, and a hook body is arranged on the outer periphery of the rod body, and the hook body is matched with the lock hook part 362 to hook the lock hook part 362. It is understood that the locking device 90 may also be a single piece without being split into the support bar 96 and the retaining member 97, or the locking device 90 may be a portion of the valve stem 20 that extends convexly downward without departing from the scope of this invention.

Further, as shown in fig. 2 and 14, the side of the valve body 10 facing the channel 11 is provided with a blind hole 13, the blind hole 13 is used for accommodating a part of the locking member 97, and the protrusion 91 is arranged outside the blind hole 13. Set up blind hole 13 with one side of valve body 10 orientation passageway 11, can not influence the sealing performance of valve body 10 promptly, also can set up regional holding part retaining member 97, because of latch hook portion 362 is operatable to be located passageway 11, so set up bulge 91 outside blind hole 13, can guarantee that bulge 91 can detain latch hook portion 362 and draw, this structural configuration is reasonable, and the technical staff in the art can set up according to actual need. It should be understood that the blind hole 13 can also take the form of a through hole, but the portion of the through hole that receives the retaining member 97 can be provided with a sealing ring, and such an embodiment does not depart from the scope of the present invention, and can be set by those skilled in the art according to actual needs.

As shown in fig. 15, the stem 20 is provided with a first mounting hole 21 and a second mounting hole 22, the first mounting hole 21 and the second mounting hole 22 extend in a direction perpendicular to each other, and the first mounting hole 21 at least partially penetrates the second mounting hole 22. As shown in fig. 16, the actuator 40 is provided with a first mounting post 43 and a second mounting post 44, the first mounting post 43 and the second mounting post 44 are operatively inserted into the first mounting hole 21, a side of the support rod 96 facing the valve stem 20 penetrates the second mounting hole 22 and is partially located in the first mounting hole 21, and a portion of the support rod 96 located in the first mounting hole 21 is clamped between the first mounting post 43 and the second mounting post 44. This arrangement not only saves space, but also ensures that the support rod 96 is stably clamped between the first mounting post 43 and the second mounting post 44, ensures the relative stable movement of the driver 40 and the support rod 96, and ensures that the support rod 96 moves when the driver 40 starts to move and the driver 40 moves when the support rod 96 moves. The setting can be performed by those skilled in the art according to actual needs.

As shown in fig. 17 and 18, the angle a of the support rod 96 rotated by the valve rod 20 is between 160 ° and 170 °. That is, the angle a of the support rod 96 driven by the valve rod 20 to rotate is between 160 ° and 170 ° from the time when the valve 100 is at the maximum flow rate to the time when the valve 100 is closed. That is, when the valve 100 in the closed state is opened to the maximum flow rate, that is, the valve core 30 is rotated by the maximum angle a, the support rod 96 is driven by the valve rod 20 to rotate by the angle a in the range of 160 ° to 170 °.

Further, when the opening between the valve spool 30 and the valve body 10 is maximized, the area of the outer contour of the support rod 96 toward the valve spool 30 is minimized. That is, when the flow rate of the valve 100 is maximized, that is, the valve element 30 is rotated to the maximum angle a, the area of the outer contour of the support rod 96 facing the valve element 30 is minimized. This arrangement minimizes the obstruction of the support rod 96 to the passage of fluid, ensuring both the sealing capability of the valve 100 and the maximum possible flow rate.

Preferably, as shown in fig. 9, the supporting rod 96 has a rectangular parallelepiped structure, the supporting rod 96 has a pair of oppositely disposed first side surfaces 961 and a pair of oppositely disposed second side surfaces 962, the first side surfaces 961 and the second side surfaces 962 are spaced apart from each other, and the area of the first side surfaces 961 is larger than that of the second side surfaces 962. Wherein the second side surface 962 faces the spool 30 when the opening between the spool 30 and the valve body 10 is maximized. That is, when the flow rate of the valve 100 is maximized, that is, the spool 30 is rotated to the maximum angle a, the second side surface 962 faces the spool 30. This arrangement is simple and minimizes the obstruction of the support rod 96 to the passage of fluid, ensuring both the sealing capability of the valve 100 and the maximum possible flow.

In addition, a line connecting the joint of the coupling member 50 and the spool body 31 with the locking portion passes through the center of the spool 30. The locking column 36 has a connecting portion 361 connected to the valve body 31, and a locking hook portion 362 connected to a side of the connecting portion 361 away from the valve body 31, and the locking hook portion 362 is bent and connected to the connecting portion 361 and extends toward a connection between the connecting member 50 and the valve body 31. That is, the joint of the connecting member 50 and the valve core body 31 is located at the top of the valve core body 31, and the locking portion is located at the bottom of the valve core body 31, so that when the valve 100 is closed, the valve core body 31 and the valve body 10 are sealed by the two end sides of the valve core body 31, and the sealing performance of the valve 100 is ensured to the maximum extent. Understandably, the connection line of the connection position of the connecting piece 50 and the valve core body 31 and the locking part passes through the center of the valve core 30 as the optimal scheme, and the connection line of the connection position of the connecting piece 50 and the valve core body 31 and the locking part does not pass through the center of the valve core 30.

Further, as shown in fig. 7, a distance between the center O of the spool body 31 and the center P of the junction between the lock post 36 and the spool body 31 is m, a distance between the center O of the spool body 31 and the boundary Q of the spool body 31 on the inlet side is n, and a line connecting the center O of the spool body 31 and the boundary of the spool body 31 on the inlet side passes through the center P of the junction between the lock post 36 and the spool body 31, and m/n ranges from 1/3 to 2/3. That is, the center P where the lock post 36 is connected to the spool body 31 may be in the middle, one-third, or two-thirds of the boundary Q of the spool body 31 and the center O of the spool body 31; or at the quarter or the fifth, the joint P of the locking column 36 and the spool body 31 is closer to the boundary Q of the spool body 31 and is far away from the center O of the spool body 31. The center of the connection between the locking post 36 and the valve core body 31 can be slightly eccentric, and the protection scope of the present application is also included.

While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims

1. A valve is characterized in that the valve body is provided with a valve body,

the valve comprises a valve body, a valve rod, a valve core, a driver and a connecting piece; the valve body is internally provided with a passage and a valve rod hole for at least partially accommodating the valve rod, the valve body is provided with an outlet communicated with the outside and an inlet, and the valve core is hinged with the valve body at the inlet; the valve core comprises a valve core body and a locking column, wherein the valve core body protrudes towards the outlet side;

the driver is detachably connected with the valve rod and is matched with the connecting piece, so that the rotary motion of the valve rod is transmitted to the valve core through the connecting piece and converted into the motion for driving the valve core to rotate around the hinge axis, and the valve core opens or closes the channel; the valve also comprises a locking device which extends into the valve body and is fixedly connected with the valve rod; when the valve core closes the channel, the locking device is connected with the locking column, and the joint of the connecting piece and the valve core body and the locking column are respectively positioned at two sides of the center of the valve core;

when the valve core closes the channel, the locking device is connected with the valve core and provides a pulling force for the locking column from the inlet to the outlet.

2. The valve of claim 1, wherein a projection projects from the locking device;

3. The valve of claim 2, wherein the protrusion protrudes toward the stem, and the locking post has a connecting portion connected to the valve body, and a locking hook portion connected to a side of the connecting portion facing away from the valve body; and the locking hook part is connected with the connecting part in a bending way and extends towards one side of the locking device with the protruding part.

4. The valve of claim 3, wherein the latch hook portion has a first sidewall facing the cartridge body; the bulge is provided with a locking surface, when the valve core closes the channel, the locking surface deviates from the valve core body, the first side wall is abutted against the locking surface, and the locking surface provides a pulling force in the direction from the inlet to the outlet for the first side wall.

5. The valve of claim 4, wherein the projection has an initial side and a terminal side, the first sidewall being adjacent the terminal side when the poppet closes the passage;

6. The valve according to claim 5, wherein the guiding portion has a guiding surface connected with the locking surface, the locking surface and the guiding surface are both arc surfaces protruding outwards in a direction away from the axis of the locking device, and the locking surface and the guiding surface are on the same arc surface;

7. The valve of claim 4, wherein the locking surface is a curved surface that is convex toward an axis away from the locking device; wherein the projection has an initial side and a distal side, and a distance between the locking surface and an axis of the locking device is gradually reduced from the initial side to the distal side.

8. The valve of claim 4, wherein the projection is connected to the locking device and further has a stop surface;

9. The valve of claim 2, wherein the protrusion provides a pulling force on the locking post in a direction from the inlet to the outlet when the protrusion is positioned between the spool body and the locking post.

10. The valve of claim 2, wherein the projection has an interference fit with the locking post.

11. The valve of claim 2, wherein the locking device comprises: the two ends of the supporting rod are respectively and fixedly connected with the valve rod and the locking piece;

the bulge is arranged on the locking piece in a protruding mode and surrounds the periphery of the supporting rod in the axial direction;

12. The valve of claim 11 wherein the side of the valve body facing the passageway is provided with a blind hole for receiving a portion of the locking member, and the projection is disposed outside the blind hole.

13. The valve according to claim 11, wherein the valve rod is provided with a first mounting hole and a second mounting hole, the first mounting hole is perpendicular to the extending direction of the second mounting hole, and at least part of the first mounting hole is communicated with the second mounting hole;

14. The valve of claim 11, wherein the support rod is rotated by the valve stem through an angle in the range of 160 ° to 170 °.

15. The valve of claim 11, wherein the support rod has a minimum outer profile area toward the valve spool when the opening between the valve spool and the valve body is at a maximum.

16. The valve according to claim 15, wherein the support rod is a rectangular parallelepiped, the support rod has a pair of first side surfaces and a pair of second side surfaces, the first side surfaces and the second side surfaces are spaced apart from each other, and the area of the first side surfaces is larger than that of the second side surfaces;

wherein the second side surface faces the valve spool when an opening between the valve spool and the valve body is maximized.

17. The valve of claim 1, wherein a line connecting the connection between the connecting member and the valve element body and the locking column passes through the center of the valve element;

18. The valve of claim 1, wherein a distance from a center of the valve body to a center of a connection between the locking post and the valve body is m, a distance from a center of the valve body to a boundary of the valve body on a side facing the inlet is n, and a line connecting the center of the valve body to the boundary of the valve body on the side facing the inlet passes through the center of the connection between the locking post and the valve body; m/n ranges from 1/3 to 2/3.