Hinged valve

Abstract

The application discloses a hinged valve, which comprises a valve shell, a valve rod, a valve core, a driving part and a sliding part, the valve shell is provided with a channel and a valve rod hole for at least partially accommodating the valve rod, and the valve rod is hinged to the valve shell; the driving part is detachably connected with the valve rod and cooperates with the sliding part so that the rotary motion of the valve rod is transmitted to the valve core through the driving part via the sliding part and is converted into the motion for driving the valve core to rotate around the hinged axis to open or close the valve; the sliding part is connected with a pin shaft of the valve core; the hinged axis of the valve core and the valve shell is parallel to the rotary axis of the pin shaft; at least one sliding part limiting part is arranged on the valve core; and the sliding part limiting part is arranged on the valve core and limits the displacement of the sliding part along the rotary axis direction. The application improves the problem that the valve core and the valve shell are prone to falling off in the prior art.

Description

[0001] This invention is a divisional application filed on September 10, 2021, with application number 202111063628.2 and invention title "Hinged Valve". Technical Field

[0002] This invention relates to valves, and more specifically to a hinged valve. Background Technology

[0003] Existing valves used for medium-sized bulk storage containers, such as butterfly valves, open by rotating a central shaft in the valve core. This shaft rotates the valve core to open the valve. Because the valve core is generally located inside the valve body, the flow rate is affected by the valve core and the rotating shaft, resulting in poor sealing. Furthermore, the friction between the butterfly valve's sealing ring and the valve body requires considerable force to open and close the valve.

[0004] Recently, guide groove type rising stem ball valves have been developed both domestically and internationally. The valve stem has an S-shaped guide groove that cooperates with the guide pin. When the valve stem rises, it causes the ball to disengage from the valve seat and then rotate 90° counterclockwise to fully open the valve. When the valve stem descends, it causes the ball to rotate 90° clockwise and then press against the valve seat to close the valve.

[0005] Chinese patent application CN99124192.4 discloses a disc-shaped double-track rotating and supporting valve opening and closing structure, which consists of a fixed disc, a rotating disc, and a limiting pin. When an external force drives the valve stem, along with the rotating disc, it drives the limiting pin. The limiting pin rotates clockwise along the "arc" track on the fixed disc. When it rotates to the "straight" track connected to the "arc" track, the rotating disc continues to rotate clockwise. Under the forced action of the "supporting" track on the rotating disc, the limiting pin is forced open along the "straight" track on the fixed disc towards the periphery. At this time, the limiting pin, along with the valve sealing structure, moves towards the valve seat, and the valve closes. When the valve stem, along with the rotating disc, rotates counterclockwise, under the forced action of the "supporting" track on the rotating disc, the limiting pin, along with the valve sealing structure, first moves towards the center of the fixed disc along the "straight" track, and then rotates counterclockwise along the "arc" track, and the valve opens.

[0006] Chinese patent CN200620105067.2 describes a track-type plug valve, including a valve body, a valve cover, an operating element, a valve stem, a valve seat, a valve plug that forms a conical sealing pair with the valve seat, and a track mechanism. The track mechanism consists of a track ring with two guide grooves installed on the neck of the valve plug and a double pin plate with two guide pins inserted into the guide grooves. It also includes a locking nut and an adjusting ring for adjusting the installation position of the track ring.

[0007] All of the valves in the above-mentioned existing technologies have the problem that the valve core and valve body are prone to detachment. Summary of the Invention

[0008] The purpose of this invention is to provide a hinged valve to at least solve the problem of easy detachment of the valve core and valve body in the prior art.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows: To address the aforementioned problems, the present invention provides a hinged valve, comprising a valve body, a valve stem, a valve core, a drive member, and a sliding member. The valve body has a channel and a valve stem hole to at least partially accommodate the valve stem. The valve core is hinged to the valve body. The drive member is detachably connected to the valve stem and cooperates with the sliding member, such that the rotational movement of the valve stem is transmitted to the valve core via the drive member and the sliding member, and converted into a movement that drives the valve core to rotate about the hinge axis to open or close the valve. The sliding member is pin-connected to the valve core. The hinge axis between the valve core and the valve body is parallel to the rotation axis of the pin. The valve core has at least one sliding member limiting portion, which is provided on the valve core and restricts the displacement of the sliding member along the rotation axis.

[0010] In one embodiment, the valve core is provided with at least one connecting base, the connecting base is provided with a hinge hole, the slider is provided with at least one connecting pin, the connecting pin extends from at least a portion of the slider and at an angle to the at least a portion, and the connecting pin is inserted into the hinge hole and configured to be rotatable within the hinge hole, and the slider limiting portion is provided on the side of the connecting pin away from the hinge hole.

[0011] In one embodiment, the slider is detachably fixed to the connecting base.

[0012] In one embodiment, the distance between the sliding member limiting portion and the connecting base is less than the length of the connecting pin.

[0013] In one embodiment, the slider is an elastic component.

[0014] In one embodiment, the at least one connecting base is a pair of spaced-apart connecting bases, the at least one connecting pin is a pair of connecting pins, the pair of connecting pins are respectively inserted into hinge holes on the opposing surfaces of the pair of connecting bases, and the sliding limiting portion is located between the pair of connecting bases.

[0015] In one embodiment, the slider has a body and a pair of connecting pins. The body is generally U-shaped, and the pair of connecting pins extend at an angle to the body. The pair of connecting pins are symmetrically disposed at the two ends of the body and are respectively disposed in the opposite hinge holes.

[0016] In one embodiment, the sliding member limiting portion has a relief groove that extends along the extension direction of the connecting pin. When the sliding member rotates relative to the valve core to a predetermined angle, the relief groove allows the connecting pin to retract into the relief groove together with at least a portion of the sliding member from the hinge hole.

[0017] In one embodiment, when the valve core is at its maximum open angle, the plane of the body is not aligned with the clearance groove.

[0018] In one embodiment, the spacing between the pair of connecting bases is greater than the sum of the lengths of the pair of connecting pins.

[0019] The articulated valve of the present invention overcomes the shortcomings of the prior art, providing a valve with low torque, simple structure, good manufacturing process, small opening and closing torque, simple operation, good sealing performance, and the valve core and valve body are not easy to separate. Attached Figure Description

[0020] Figure 1 This is an exploded perspective view of a hinged valve according to an embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional view of a hinged valve according to an embodiment of the present invention, wherein the valve is in the closed state.

[0022] Figure 3 This is a perspective view of the valve housing of a hinged valve according to an embodiment of the present invention.

[0023] Figure 4 This is another perspective view of the valve housing of a hinged valve according to an embodiment of the present invention.

[0024] Figure 5 This is a perspective view of the valve stem of a hinged valve according to an embodiment of the present invention.

[0025] Figure 6 This is another perspective view of the valve stem of a hinged valve according to an embodiment of the present invention.

[0026] Figure 7 This is a perspective view of the drive component of a hinged valve according to an embodiment of the present invention.

[0027] Figure 8 This is a top view of the actuator of a hinged valve according to an embodiment of the present invention.

[0028] Figure 9 This is a perspective view of an embodiment of the sliding element of a hinged valve according to an embodiment of the present invention.

[0029] Figure 10This is a perspective view of another embodiment of the sliding element of a hinged valve, which is one embodiment of the present invention.

[0030] Figure 11 This is a perspective view of the assembled drive and sliding components of a hinged valve according to an embodiment of the present invention.

[0031] Figure 12 This is a perspective view of the valve core of a hinged valve according to an embodiment of the present invention.

[0032] Figure 13 This is another perspective view of the valve core according to an embodiment of the present invention.

[0033] Figure 14 This is a perspective view of the assembled valve stem, valve core, drive component, and sliding component of a hinged valve according to an embodiment of the present invention.

[0034] Figure 15 This is a perspective view of a hinged valve according to an embodiment of the present invention, wherein the valve is in the open state.

[0035] Figure 16 yes Figure 15 A cross-sectional view of a hinged valve.

[0036] Figure 17 , Figure 18 and Figure 19 This is a cross-sectional view of the opening process of a hinged valve according to an embodiment of the present invention, wherein... Figure 17 The valve is in the closed position. Figure 18 The valve is in a semi-open state. Figure 19 The valve is fully open.

[0037] Figure 20 This is a perspective view of an assembled hinged valve according to an embodiment of the present invention, wherein the valve is in the closed state.

[0038] Figure 21 This is a perspective view of the maximum angle of connection between the valve core and the sliding member in use according to an embodiment of the present invention. Detailed Implementation

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are only for illustrating the essential spirit of the technical solution of the present invention.

[0040] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0041] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0042] In the following description, in order to clearly demonstrate the structure and working method of the present invention, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0043] This invention provides a hinged valve, which includes a valve body, a valve stem, a valve core, a drive member, and a sliding member. The valve body has a channel and a valve stem hole to at least partially accommodate the valve stem. The valve core is hinged to the valve body. The drive member is detachably connected to the valve stem and cooperates with the sliding member so that the rotational movement of the valve stem is transmitted to the valve core through the drive member and the sliding member, and converted into a movement that drives the valve core to rotate about the hinge axis to open or close the valve. The sliding member is connected to the valve core pin. The hinge axis between the valve core and the valve body is parallel to the rotation axis of the pin. The valve core is provided with at least one sliding member limiting part, which is provided on the valve core and limits the displacement of the sliding member along the rotation axis to prevent the sliding member from disengaging from the valve core. Normally, the valve core and valve body of a hinged valve are not easily separated. However, when the viscosity of the liquid flowing through the hinged valve is too high, or the liquid flow rate and velocity are too large, the impact force between the liquid and the valve core is too great, which will cause the sliding part to deform, thereby causing the valve core to separate from the valve body. This invention restricts the displacement of the sliding part along the rotation axis by setting a sliding part limiting part, so that the valve core and valve body are not easily separated.

[0044] like Figure 1 and Figure 2As shown, the hinged valve 100 includes a valve body 1, a handle 2, a sliding member 3, a valve core 4, a valve cover 5, sealing rings 6 and 7, a valve seat 9, a driving member 8, and a valve stem 10. The valve core 4 is connected to the valve body 1 via a hinge. The hinge consists of a hinge shaft on the valve core 4 and a hinge hole on the valve body 1, which will be described in more detail below. A sealing ring 6 is provided between the valve core 4 and the valve body 1. The handle 2 is rotatably connected to the valve stem 10 via a handle pin 11. The valve stem 10 is connected to the valve core 4 via the sliding member 3 and the driving member 8. The sliding member 3 and the driving member 8 transmit the movement of the valve stem 10 to the valve core 4, so that when the handle 2 is turned, the handle 2 drives the valve stem 10 to rotate, which in turn drives the driving member 8 and the sliding member 3 to move. The movement of the sliding member 3 then drives the valve core 4 to move, thereby realizing the opening and closing of the valve. A sealing ring 7 is provided between the valve stem 10 and the valve body 1. A valve seat 9 is provided between the valve body 1 and the valve cover 5. The valve cover 5 may also be equipped with an anti-theft buckle 12.

[0045] In addition, a locking hook is provided on the valve stem 10. A locking pin is provided on the valve core 4. The valve core 4 is locked to the valve body 1 by the cooperation of the locking hook and the locking pin to achieve a tight seal of the valve, which will be described in further detail below.

[0046] Figure 3-4 A perspective view of the valve housing 1 of a hinged valve 100 according to an embodiment of the present invention is shown. Figure 3-4 As shown, the valve body 1 is a housing. A channel 1a is formed within the housing for fluid passage. Inlet 1b and outlet 1c, communicating with the container and the outside, are formed on the left and right sides of the housing along a horizontal axis (not shown), respectively. A valve core 4 is provided at inlet 1b. Outlet 1c is connected to a valve cover. A valve stem hole 1d is formed at the upper end of the valve body 1 along a vertical axis (not shown) perpendicular to the horizontal axis. Limiting bosses 1e and 1f, spaced apart at a certain angle, are provided on the outer wall of the valve stem hole 1d. Hinge holes 1g and 1h are provided above channel 1a at inlet 1b of the valve body 1.

[0047] The valve body 1 has a flange at the end where the valve core is installed. A first reinforcing platform 16 is provided at the root of the flange. In this embodiment, the first reinforcing platform 16 is integrally formed at the root of the flange. In this case, the root of the flange is the first reinforcing platform. The thickness of the flange root is greater than the thickness of the first reinforcing platform 16 provided on the flange. Here, the flange root refers to the section of the flange that is radially extended beyond the outer wall of the valve body and is adjacent to the outer wall of the valve body. It should be understood that the first reinforcing platform can also be formed independently of the flange.

[0048] The valve body 1 also includes a reinforcing protrusion 17, also referred to as a second reinforcing platform 17, extending radially outward from the outer wall of the valve body 1. A stress-relieving groove 18 is provided between the reinforcing protrusion 17 and the flange. In one embodiment, the flange has a section defining the stress-relieving groove, at least a portion of which has a thickness greater than the thickness of the remaining portion of the flange. In one embodiment, the width of the stress-relieving groove 18 is 1 / 5 to 2 / 3 of the thickness of the reinforcing protrusion 17. In this embodiment, the reinforcing protrusion is formed as a ring, and the stress-relieving groove is formed as a ring. It should be understood that the reinforcing protrusion may also be discontinuously distributed on the valve body shell. Similarly, the stress-relieving groove may also be discontinuously distributed on the valve body shell. When the valve flange is under stress, the first reinforcing platform, the second reinforcing platform, and the stress-relieving groove transfer the force to the various components, thereby not affecting the sealing surface of the valve body and ensuring sealing stability.

[0049] The valve body 1 has an internal sealing surface 19. The sealing surface 19 faces the valve core 4 and mates with the sealing ring 6. The sealing surface is perpendicular to the valve's central axis, which is the axis from the valve's inlet to its outlet. In the closed state, the sealing ring 6 abuts against the sealing surface 19, achieving a valve seal. The sealing surface 19 is closer to the valve outlet 1c than the reinforcing protrusion 17, such as... Figure 2 As shown, flange deformation has minimal impact on the seal.

[0050] Figure 5-6 This is a perspective view of the valve stem 10 of the articulated valve 100. The valve stem 10 is partially housed in the valve stem bore 1d. Lugs 101 and pin holes 101a are formed on the upper part of the valve stem, respectively cooperating with the handle 2 and the handle pin 11. A limiting platform 102 is integrally protruding from the upper outer wall of the valve stem 10. The limiting platform 102 cooperates with limiting bosses 1e and 1f on the valve body 1 to prevent the valve stem 10 from rotating beyond a predetermined angle.

[0051] A sealing groove 13 is provided at the middle of the valve stem 10, immediately adjacent to the upper part. The sealing groove 13 is used to install the sealing ring 7 to seal between the valve stem 10 and the valve body 1. A limiting step 105 and a positioning hole 106 along the radial direction of the valve stem 10 are formed in the middle or lower part of the valve stem 10. The limiting step 105 and the positioning hole 106 are used to cooperate with the drive member 8, so that the drive member 8 is fixedly held on the valve stem 10, so that after the articulated valve is assembled, the drive member 8 will not fall off the valve stem 10 unless manually disassembled, as will be described in more detail below.

[0052] A locking hook 104 is integrally provided on the bottom end of the valve stem 10. The locking hook 104 is used to keep the valve core 4 in the closed state when the valve is closed. The locking hook 104 has a hook-shaped structure and a starting inclined surface 104a for guiding. The middle part 104b of the locking hook 104 is concave relative to the two sides. A locking platform 14 extends laterally from the lower part of the locking hook 104. The outer edge of the locking platform 14 is an arc-shaped curved surface, and the middle part of the outer edge is concave relative to the two sides. The locking platform 14 engages with the locking boss on the locking pin to prevent the locking hook 104 from accidentally disengaging from the locking pin in the locked state. The locking hook 104 is used to cooperate with the locking pin on the valve core 4 to achieve locking when the valve is closed, which will be described in more detail below.

[0053] Figure 7-8 This is a structural diagram of the drive component 8 of the hinged valve 100. (See diagram below.) Figure 7-8 As shown, the drive component 8 includes a fixed end 80 for connecting to the valve stem 10 and a guide end 84 for cooperating with the sliding component 3. The outer surfaces on both sides of the guide end 84 are respectively provided with an extension profile 85 and a retraction profile 86. The extension profile 85 and the retraction profile 86 cooperate with the opening guide post and the retraction guide post of the sliding component 3, respectively, to realize the transmission of motion, which will be described in further detail below.

[0054] The ejection profile 85 is provided with an ejection portion 85a and a limiting portion 85b in sequence. During valve opening, the ejection portion 85a cooperates with the opening guide post to push the sliding member 3 to move, thereby driving the valve core 4 to open. When the valve is fully opened, the opening guide post of the sliding member 3 disengages from the ejection portion 85a and enters the limiting portion 85b. Preferably, the limiting portion is a groove. An auxiliary pull-back protrusion 88 protruding from the outer wall of the drive member is also provided between the fixed end 80 and the ejection profile 85. During valve closing, the auxiliary pull-back protrusion 88 and the pull-back profile 86 cooperate with the opening guide post 33 and the pull-back guide post 34 of the sliding member 3, respectively. The pull-back profile 86 can be a curved surface or a plane.

[0055] The fixed end of the drive component 8 is approximately E-shaped. The upper and lower arms (elastic buckles) 81 and 82 of the E-shape have a certain degree of elasticity, so that when the middle arm (positioning post) 83 of the drive component 8 is inserted into the positioning hole 106, the drive component 8 will not fall off the positioning hole 106 unless manually disassembled. Specifically, the limiting step 105 on the valve stem 10 prevents the drive component 8 from moving in the axial direction of the valve stem 10. After the elastic buckles 81 and 82 of the drive component 8 are assembled, they will have an elastic rebound force, so that the drive component 8 always has a force to hold the valve stem 10 and prevents the drive component 8 from falling off. When the valve stem 10 rotates, the drive component 8 will rotate synchronously with the valve stem 10. During disassembly, the manual force only needs to be greater than the elastic force of the elastic buckles. Preferably, a protrusion 87 is provided on the elastic buckle 82 of the drive component 8, so that the outer contour of the elastic buckle 82 exceeds the outer contour of the sliding component 3 after assembly.

[0056] Figure 9 This is a perspective view of the sliding member 3 of a hinged valve according to an embodiment of the present invention. As shown, the sliding member 3 has a generally U-shaped body 30, with connecting pins 31 and 32 at the ends of the two arms of the body 30. An opening guide post 33 and a pull-back guide post 34 are also provided on one of the two arms of the sliding member 3. The opening guide post 33 and the pull-back guide post 34 are spaced apart from each other and extend downward from the U-shaped plane, thus forming a generally U-shaped structure together with the U-shaped body. Preferably, the sliding member 3 is integrally formed by bending an elastic material. The opening guide post 33 and the pull-back guide post 34 are located at appropriate positions on the U-shaped body 30, such that the opening guide post 33 and the pull-back guide post 34 respectively cooperate with the push-out profile 85 and the pull-back profile 86 of the drive member 8, thereby realizing the opening and closing of the valve. Specifically, as shown... Figure 11 As shown, after assembly, the guide end of the drive component 8 extends into the U-shaped structure. During the opening process, the valve stem drives the drive component 8 to rotate. The opening guide post of the drive component 8 engages with the push-out contour, driving the sliding component to move. The sliding component then drives the valve core to rotate, thereby opening the valve. During the closing process, the valve stem drives the drive component to rotate. The pull-back guide post of the drive component engages with the pull-back contour, driving the sliding component to move. The sliding component then drives the valve core to rotate, thereby closing the valve.

[0057] It should be noted that the sliding element can have various shapes as long as it has a connecting pin that connects to the valve core and an opening guide post and a pull-back guide post that cooperate with the drive element. Figure 10 This is a perspective view 3' of another embodiment of the sliding member of the hinged valve according to one embodiment of the present invention. Figure 10 As shown, the slider 3' has a generally U-shaped body 30', with connecting pins 31' and 32' at the ends of its two arms. An opening guide post 33' and a pull-back guide post 34' are also provided on one of the two arms of the slider 3'. The opening guide post 33' and the pull-back guide post 34' are spaced apart from each other and extend downwards from the U-shaped plane, thus forming a generally open structure together with the U-shaped body. The engagement of the opening guide post 33' and the pull-back guide post 34' with the push-out and pull-back contours is... Figure 9 The embodiments shown are the same and will not be described in detail here.

[0058] Figure 12-13As shown in the figure, the valve core 4 of this invention has a disc-shaped body 41, and hinge shafts 411 and 412 are integrally provided on the outer periphery of the body 41. A locking post 42 is provided on the side of the body 41 facing the valve body passage 1a. The locking post 42 is used to cooperate with the locking hook 104 on the valve stem 10. When locked, the locking post 42 and the locking hook 104 are interference fit. The locking post 42 is also provided with a locking boss 47. The locking boss 47 is located on the upper part of the locking post 42 and protrudes outward relative to the locking post. In the closed state of the valve, the locking boss 47 engages with the locking bracket 14 on the locking hook 104 to prevent the locking hook from disengaging from the locking post. Two protrusions 43 and 44 protrude from the side of the valve core 4 above the locking post 42. The protrusions 43 and 44 are respectively provided with hinge holes (not shown) for accommodating the connecting pins 31 and 32 of the sliding member 3. During assembly, the valve stem 10 is housed in the valve stem hole 1d of the valve body 1, and the drive member 8 is inserted into the positioning hole 106 on the valve stem. The guide end of the drive member extends into the U-shaped structure or U-shaped part on the sliding member, thereby cooperating with the opening guide post 33 and the pull-back guide post 34. The hinge shaft on the valve core 4 is installed into the hinge hole of the valve body, and the connecting pins 31 and 32 on the sliding member 3 are inserted into the hinge hole on the valve core 4. Because the sliding member has a certain elasticity, after assembly, the sliding member 3 will not fall off the valve core unless manually disassembled.

[0059] like Figure 15 As shown, after the articulated valve 100 is assembled, the rotation of the valve stem 10 drives the drive component 8 to rotate. The drive component 8 drives the sliding component 3 by cooperating with the guide post 33 and the guide post 34 through the push-out profile 85 and the pull-back profile 86. This, in turn, drives the valve core to open and close.

[0060] like Figure 16 As shown, the valve stem 10 is partially accommodated in the valve stem hole 1d of the valve body 1 and is rotatably held on the valve body 1. Hinge shafts 411 and 412 on the valve core 4 are respectively inserted into hinge holes 1g and 1h on the valve body 1, allowing the valve core 4 to rotate about the central axis of the hinge holes. The valve stem 10 is connected to the valve core 4 via a driving member and a sliding member 3 made of a wire spring, such that when the valve stem 10 is rotated, the valve stem 10 drives the sliding member 3 to move, which in turn drives the valve core 4 to move, thereby opening and closing the valve core.

[0061] like Figure 17-19 As shown, when the valve is opened, the valve stem 10 is rotated in the reverse direction, so that the locking hook 104 of the valve stem 10 first disengages from the locking pin 42 on the valve core 4, and then the valve stem 10 is rotated further. The valve stem 10, the driving member 8 and the sliding member 3 form a transmission mechanism. The push-out profile of the driving member 8 applies force to the opening guide pin of the sliding member, and the sliding member 3 pushes open the valve core 4, so that the valve core 4 is opened to the fully open state.

[0062] Figure 20 and Figure 2This is a perspective view and a cross-sectional view of a hinged valve in the closed state according to an embodiment of the present invention. When the valve is closed, the valve stem 10 rotates to the closed state. The valve stem 10, the driving member 8, and the sliding member 3 form a transmission mechanism. The pull-back profile of the driving member applies a force to the pull-back guide post of the sliding member, thereby causing the sliding member 3 to slide along the driving member 8 and pull the valve core 4 closer to the valve body 1, so that the valve core 4 is in a pre-closed state. As the valve stem 10 continues to rotate, when the locking pin 42 and the initial inclined surface 104a of the locking hook 104 come into contact, the locking hook will exert an inward pulling force on the locking pin surface under the action of the initial inclined surface 104a. When the locking pin 42 is pulled to the middle 104b, the side of the locking pin 42 and the middle 104b of the locking hook 104 are in contact, and the locking boss 47 on the locking pin 42 engages with the locking bracket 14 on the locking hook 104. At this time, the sealing ring 6 is compressed, achieving a seal and preventing the locking hook from disengaging from the locking pin.

[0063] In the above embodiments, since the valve core and valve body are connected by a hinge, the valve core can rotate around the central axis of the hinge to open and close the valve. In the open state, there are no obstructions in the fluid passage within the valve body, thus enabling a large flow rate. Furthermore, by appropriately setting the transmission ratio of the operating and transmission devices, the valve can be opened efficiently; for example, the valve stem only needs to rotate a small angle to fully open and close the valve. In addition, the hinge connection makes the valve structure simple and compact, easy to operate, with low opening and closing torque, large opening angle, large flow rate, easy cleaning, and low manufacturing cost. The locking boss and locking bracket work together to prevent accidental valve opening. Furthermore, by providing reinforced flanges, stress relief grooves, and reinforcing protrusions on the valve body, the valve's strength can be enhanced without significantly increasing its overall volume, preventing accidental leakage due to flange deformation caused by insufficient valve strength. Additionally, by moving the valve's sealing surface backward, deformation of the sealing components can be prevented, further preventing accidental valve leakage.

[0064] It should be noted that in the above embodiments, the components can have various modifications. For example, the handle and valve stem can be a single piece, and the hinge connection between the valve core and the valve body can be implemented by providing a hinge hole on the valve core and a hinge pin on the valve body. Furthermore, the driving member and sliding member can also have other structures, as long as the sliding member has a connecting pin for rotatably connecting with the hinge hole of the valve core, and the driving member and sliding member each have mutually cooperating guide structures, such as guide contours and guide posts, and can move synchronously with the valve stem. The guide contour can be provided on the driving member, in which case the guide post is provided on the sliding member; alternatively, the guide contour can also be provided on the sliding member, in which case the guide post is correspondingly provided on the driving member. The driving member can be integrally formed with the valve stem.

[0065] In this invention, such as Figure 1 , Figure 3 As shown, the articulated valve 100 shall include at least a valve body 1, a valve stem 10, a valve core 4, a drive element 8, and a sliding element 3. The valve body 1 has a circular channel along the axial direction for fluid to pass through. The left and right sides of the valve body 1 form an outlet 1c and an inlet (not shown) along a horizontal axis (not shown) respectively, which communicate with the container and the outside. The inlet is connected to the valve core 4. A valve stem hole is provided on the upper part of the valve body 1 along a vertical axis (not shown) perpendicular to the horizontal axis. The valve stem 10 is partially accommodated in the valve stem hole so that the valve stem 10 can be rotated. The valve body 1 and the valve core 4 are connected to each other by a hinge. The valve body 1 has a hinge shaft, and the upper side of the valve core 4 has a hinge hole provided at a position corresponding to the hinge shaft on the valve body 1. The drive member 8 is detachably connected to the valve stem 10 through its own structure and cooperates with the sliding member 3 so that the rotational movement of the valve stem 10 can be transmitted to the valve core 4 through the drive member 8 via the sliding member 3 and converted into the movement that drives the valve core 4 to rotate around the hinge axis. Through this structure, the valve can be opened and closed.

[0066] Specifically, the valve stem 10 is connected to the valve core 4 via the sliding member 3 and the driving member 8. The sliding member 3 and the driving member 8 transmit the movement of the valve stem 10 to the valve core 4. When the valve stem 10 rotates, it drives the driving member 8 and the sliding member 3 to move, and the sliding member 3 in turn drives the valve core 4 to move, thereby realizing the opening and closing of the valve. A locking hook 104 is integrally provided on the bottom of the valve stem 10. The locking hook 104 has a hook-shaped structure and keeps the valve core 4 closed when the valve is closed. Correspondingly, the valve core 4 is provided with a locking pin 42. The locking pin 42 on the valve core 4 cooperates with the locking hook 104 on the valve stem 10. In the locked state, the locking hook 104 can be prevented from accidentally disengaging from the locking pin 42, thus preventing the valve core 4 from disengaging from the valve body 1 in the locked state. The driving member 8 includes a fixed end 80 connected to the valve stem 10 and a guide end 84 that cooperates with the sliding member 3. The outer surfaces on both sides of the guide end are provided with a push-out profile 85 and a pull-back profile 86. The push-out and pull-back contours cooperate with the sliding member to transmit motion. The body of the sliding member 3 is roughly U-shaped, and its two arms are equipped with two connecting pins 31 and 32. One of the two arms of the sliding member 3 is equipped with an opening guide post 33 and a pull-back guide post 34. The opening guide post 33 and the pull-back guide post 34 are spaced apart from each other and perpendicular to the plane on which their bodies are located, thus forming a "U" shape together with the body of the sliding member 3. The opening guide post 33 and the pull-back guide post 34 cooperate with the push-out contour 85 and the pull-back contour 86 of the driving member 8, respectively, to realize the opening and closing of the valve. In the assembled state of the hinged valve 100, the guide end of the driving member 8 extends into the "U" shape. During the opening process, the valve stem 10 drives the driving member 8 to rotate. The opening guide post 33 of the driving member 8 cooperates with the push-out contour 85 to drive the sliding member 3 to move, thereby transmitting motion so that the sliding member 3 drives the valve core 4 to move, thus opening the valve. Correspondingly, during the closing process, the valve stem 10 drives the drive member 8 to rotate. The pull-back guide post 34 and pull-back contour 86 of the drive member 8 cooperate to drive the movement of the sliding member 3, which in turn transmits the movement so that the sliding member 3 drives the valve core 4 to move, thereby closing the valve. A limiting step 105 and a positioning hole 106 along the radial direction of the valve stem 10 are formed in the middle or lower part of the valve stem 10. The limiting step 105 and the positioning hole 106 cooperate with the drive member 8 to fix the drive member 8 on the valve stem 10. After the articulated valve 100 is assembled, the drive member 8 will not fall off the valve stem 10 unless it is disassembled manually.

[0067] The sliding member 3 is connected to the valve core 4 by a pin. The sliding member 3 is provided with a connecting pin, and the valve core 4 is provided with a hinge hole. Simultaneously, the hinge axis between the valve core 4 and the valve body 1 is parallel to the rotation axis of the pin. Figure 12As shown, the valve core 4 is provided with a sliding member limiting part 48, which is located on the path of the sliding member 3 disengaging from the valve core 4 and can restrict the sliding member 3 from disengaging from the valve core 4. In the preferred embodiment shown, the valve core 4 is provided with two connecting bases 43 and 44, which are provided with hinge holes. The sliding member 3 is provided with two connecting pins 31 and 32. The body of the sliding member 3 is approximately U-shaped. The two connecting pins 31 and 32 extend at an angle to the body of the sliding member 3, specifically to its two arms, and are symmetrically arranged at the ends of its two arms. The connecting pins 31 and 32 are inserted into the hinge holes and can rotate within them. The sliding member limiting part 48 is provided on the path of the connecting pins 31 and 32 exiting from the hinge holes. It should be understood that the number of connecting pins is not limited to the two shown in the embodiment, but other numbers of connecting pins can be provided; the number of hinge holes on the valve core 4 can also be set to different numbers as needed.

[0068] It should be understood that the pin connection between the sliding member 3 and the valve core 4 is not limited to the technical solution where the sliding member 3 has a connecting pin and the valve core 4 has a hinge hole. It is also possible to have a hinge hole on the sliding member 3 and a connecting pin on the valve core 4 without departing from the scope of the present invention, as long as the pin connection between the sliding member 3 and the valve core 4 is achieved. The sliding member limiting part 48 is also not limited to one. When there is more than one connecting pin on the sliding member 3, the sliding member limiting part 48 can be provided on the path of each connecting pin disengaging from the hinge hole to restrict the sliding member 3 from disengaging from the valve core 4. Those skilled in the art can provide two, three, or more than three sliding member limiting parts 48 according to actual needs without departing from the scope of the technical solution of the present invention.

[0069] Preferably, the valve core 4 is provided with two symmetrical connecting bases 43 and 44, each with a hinge hole. The sliding member 3 is provided with two connecting pins 31 and 32. The body of the sliding member 3 is approximately U-shaped. The two connecting pins 31 and 32 extend at an angle to the body of the sliding member 3 and are symmetrically located at its two ends. The connecting pins 31 and 32 are inserted into the hinge holes and can rotate within them. The sliding member limiting part 48 is located in the middle of the two connecting bases 43 and 44, and is also located on the path through which the connecting pins 31 and 32 exit from the hinge holes in the connecting bases 43 and 44, respectively. At this time, the sliding member 3 is easy to detach from the middle position of the two connecting bases 43 and 44. Therefore, it is a preferred solution to place the sliding member limiting part 48 in the middle position of the two connecting bases 43 and 44.

[0070] It should be understood that the valve core 4 may also be provided with one or more connecting bases, with hinge holes on the connecting bases and connecting pins on the sliding member 3. Alternatively, the connecting pins on the connecting bases and the hinge holes on the sliding member 3 can be used, as long as the valve core 4 and the sliding member 3 are connected by a pin, it does not depart from the scope of the technical solution of the present invention. The connecting pin on the sliding member 3 rotates within the hinge hole of the connecting base, and the limiting part of the sliding member is located on the side of the connecting pin away from the hinge hole, so that the limiting part of the sliding member can prevent the connecting pin from disengaging from the hinge hole, without departing from the scope of the present invention.

[0071] In another embodiment, the sliding member 3 is detachably fixed to the connecting base, allowing for replacement of the sliding member 3 or the valve core 4 in the event of damage to the hinged valve, thereby reducing maintenance costs. Those skilled in the art can configure this according to actual needs.

[0072] In addition, the distance between the sliding member limiting part and the connecting base is preferably less than the length of the connecting pin. This avoids the connecting pin from coming out of the hinge hole through the gap between the sliding member limiting part and the connecting base, better restricts the disengagement path of the connecting pin, and prevents the possibility of the connecting pin coming out of the gap between the sliding member limiting part and the connecting base.

[0073] Preferably, the sliding member 3 is made of an elastic component, which facilitates the installation of the sliding member 3. Using an elastic component allows the sliding member 3 to be fixedly installed or detached from the valve core 4 by utilizing its deformable property.

[0074] Furthermore, when the sliding member 3 can be detachably connected to the valve core 4, a clearance groove can be provided in the limiting part of the sliding member. The clearance groove extends along the extension direction of the connecting pin, and the cross-section of the clearance groove is approximately U-shaped, so that the width of the opening of the clearance groove is smaller than the width of the depth of the clearance groove, so as to prevent the connecting pin from coming out of the hinge hole through the clearance groove. When the sliding member 3 rotates relative to the valve core 4 to a predetermined angle, the clearance groove allows the connecting pin to retract from the hinge hole and at least a part of the sliding member 3 into the clearance groove together, so that the sliding member can be disengaged from the valve core. In addition, it also ensures that the sliding member and the valve core can be prevented from falling off within the operating angle range.

[0075] Preferred, such as Figure 21 As shown, when the hinged valve 100 is in use, when the valve core 4 is opened so that it is at the maximum opening angle with the sliding member 3, the plane on which the sliding member 3 is located is not aligned with the clearance groove of the sliding member limiting part 48, ensuring that the sliding member cannot detach from the valve core within the operating angle range.

[0076] Furthermore, the distance between the opposing connecting bases is greater than the sum of the lengths of a pair of connecting pins, allowing the sliding element to easily detach from the valve core. Those skilled in the art can set the distance between the connecting bases and the length of the connecting pins according to actual needs.

[0077] The above embodiments are merely illustrative of preferred embodiments of the present invention and are not intended to limit the present invention.

[0078] This invention provides a hinged valve that solves the problem of easy detachment between the sliding part and the valve core in existing valves by setting a sliding member limiting part. Compared with similar research and products in China, this application has the following beneficial technical effects: it overcomes the shortcomings of the prior art, provides a low-torque valve, has a simple structure, excellent manufacturing process, low opening and closing torque, simple operation, good sealing performance, and the valve core and valve body are not easily separated.

[0079] The preferred embodiments of the present invention have been described in detail above. However, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A hinged valve, comprising a valve body, a valve stem, a valve core, a drive member, and a sliding member, wherein the valve body has a channel and a valve stem hole to at least partially accommodate the valve stem, and the valve core is hinged to the valve body; the drive member is detachably connected to the valve stem and cooperates with the sliding member such that rotational movement of the valve stem is transmitted through the drive member and via the sliding member to the valve core and converted into movement that drives the valve core to rotate about a hinge axis to open or close the valve, characterized in that... The sliding member is connected to the valve core pin. The hinge axis of the valve core and the valve housing is parallel to the rotation axis of the pin. The valve core is provided with at least one sliding member limiting part. The sliding member limiting part is provided on the valve core and restricts the displacement of the sliding member along the rotation axis. The valve core is provided with at least one connecting base, the connecting base is provided with a hinge hole, the sliding member is provided with at least one connecting pin, the connecting pin extends from at least a portion of the sliding member and at an angle to the at least a portion, and the connecting pin is inserted into the hinge hole and configured to be able to rotate within the hinge hole, and the limiting portion of the sliding member is provided on the side of the connecting pin away from the hinge hole. The sliding member limiting part is provided with a relief groove, which extends along the extension direction of the connecting pin. When the sliding member rotates relative to the valve core to a predetermined angle, the relief groove allows the connecting pin to retract into the relief groove together with at least a portion of the sliding member when it exits the hinge hole. The slider has a body and a pair of connecting pins. The pair of connecting pins extend at an angle to the body. The pair of connecting pins are symmetrically arranged at the two arm ends of the body and are respectively arranged in the corresponding hinge holes. The valve core is provided with a locking post, and the clearance groove opens toward the side away from the locking post and passes through the sliding member limiting part along the extension direction of the connecting pin; when the valve core is in the position of the maximum opening angle, the plane on which the body is located is not aligned with the clearance groove.

2. The hinged valve according to claim 1, characterized in that, The sliding element is detachably fixed to the connecting base.

3. The hinged valve according to claim 1, characterized in that, The distance between the sliding member limiting part and the connecting base is less than the length of the connecting pin.

4. The hinged valve according to claim 1, characterized in that, The sliding element is an elastic component.

5. The hinged valve according to claim 1, characterized in that, The at least one connecting base is a pair of spaced-apart connecting bases, the at least one connecting pin is a pair of connecting pins, the pair of connecting pins are respectively inserted into hinge holes on the opposing surfaces of the pair of connecting bases, and the sliding member limiting part is located between the pair of connecting bases.

6. The hinged valve according to claim 5, characterized in that, The sliding member limiting part is located in the middle of the pair of connecting bases, and is also located on the path through which the pair of connecting pins exit from the hinge holes in the pair of connecting bases.

7. The hinged valve according to claim 1, characterized in that, The width of the clearance groove opening is smaller than the width of the clearance groove depth.

8. The hinged valve according to claim 7, characterized in that, The cross-section of the clearance groove is approximately U-shaped.

9. The hinged valve according to claim 1, characterized in that, The body shape is roughly U-shaped.

10. The hinged valve according to claim 1, characterized in that, The distance between the pair of connecting bases is greater than the sum of the lengths of the pair of connecting pins.

11. The hinged valve according to claim 1, characterized in that, The valve stem is provided with a locking hook, and the valve core is locked to the valve body by the cooperation of the locking hook and the locking pin.

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