Valve

Abstract

The valve comprises a valve body, a valve element, a driver, a spring wire and a valve rod, the valve body is provided with a channel and a valve rod hole, the valve element is provided with a groove, and two pits are formed in the side wall of the groove. The driving assembly comprises a driver and a spring wire, the driver is provided with a mounting hole, and the driver is connected with the spring wire. The spring wire is provided with two torsion arms, and the outer ends of the two torsion arms are located on the outer side of the driver. During closing, the valve rod drives the driver to rotate and then drives the spring wire to rotate, the outer ends of the two torsion arms are separated from the two pits and abut against the side wall of the groove, and the spring wire drives the valve element to rotate. During opening, the valve rod drives the driver to rotate and drives the valve element rotating shaft.

Description

Technical Field

[0001] The utility model relates to a fluid control valve device, in particular to a valve. Background Art

[0002] A valve is a kind of opening and closing part, suitable for use as a switch or cut-off valve, and can be used for fluid regulation and control. With the continuous improvement of production technology and product structure, ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and occupy a pivotal position in the national economy.

[0003] In the prior art valve, when the valve core needs to be rotated, the valve stem generally drives the driving member to rotate, and the two elastic ribs of the driving member are combined with the pits at the top of the valve core to drive the valve core to rotate synchronously. However, the elastic ribs are easy to wear or break during use, so it is necessary to improve the prior art valve. Utility Model Content

[0004] The utility model aims to provide a valve to solve the problems of the prior art.

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a valve, comprising:

[0006] A valve body, the valve body having a passage extending along a horizontal axis and a valve stem hole extending to the passage along a vertical axis, the passage being open at both ends along the horizontal axis;

[0007] A valve core, the valve core is installed in the passage and is arranged to be rotatable around the vertical axis and to have a motion component along the horizontal axis, the top surface of the valve core is provided with a groove aligned with the valve stem hole, and the side wall of the groove forms two pits recessed radially outward;

[0008] A drive assembly, the drive assembly comprising a driver and a spring wire, the driver being installed in the groove and provided with a mounting hole, the driver being connected to the spring wire and being movable relative to the spring wire; the spring wire having two torsion arms, the outer ends of the two torsion arms being located radially outward of the driver; and

[0009] A valve stem, the top end of which is located at the top of the valve body, and the bottom end of which extends from the valve stem hole to the mounting hole of the driver;

[0010] When the valve is closed, the valve stem drives the driver to rotate relative to the spring wire around the vertical axis at a preset angle and then drives the spring wire to rotate synchronously, the outer ends of the two torsion arms gradually separate from the two pits and abut against the side walls of the groove, and the spring wire drives the valve core to rotate around the vertical axis to a preset position.

[0011] When the valve is opened, the valve stem drives the driver to rotate around the vertical axis, and drives the valve core to rotate around the vertical axis.

[0012] In one embodiment, the sidewall of the groove forms an inner convex profile that protrudes radially inward;

[0013] The radial outer side of the driver is provided with a protruding outer convex profile;

[0014] When the valve is closed, the outer convex profile abuts against the side wall of the groove and synchronously drives the valve core to rotate around the vertical axis to a preset position with the spring wire, and then the outer convex profile moves along the inner convex profile and causes the valve core to have a movement component along the horizontal axis;

[0015] When the valve is opened, the valve stem drives the driver to rotate about the vertical axis, so that the outer convex profile moves along the inner convex profile and the valve core has a movement component along the horizontal axis.

[0016] In one embodiment, the driver rotates around the vertical axis by a preset angle and then drives the spring wire to rotate synchronously.

[0017] In one embodiment, when the valve is opened, the driver and the spring wire rotate synchronously and then rotate relative to the spring wire.

[0018] In one embodiment, a limiting column is provided on the top surface of the driver;

[0019] The spring wire is connected to the limiting column, and the limiting column can move relative to the spring wire;

[0020] When the valve is closed, the limiting column rotates relative to the spring wire at a preset angle and then drives the spring wire to rotate synchronously.

[0021] In one embodiment, the bottom surface of the driver is provided with a first recessed area extending around the vertical axis, and the top wall of the first recessed area is provided with the limiting column;

[0022] The spring wire is located in the first recessed area and includes a concave ring, the concave ring is sleeved outside the limiting column and the two ends of the concave ring are respectively connected to the inner ends of the two torsion arms;

[0023] When the valve is closed, the limit column rotates to the side where the concave ring is away from the two torsion arms, and then drives the concave ring to rotate synchronously;

[0024] When the valve is opened, the limiting column rotates relative to the concave ring to a side of the concave ring away from the two torsion arms, and then drives the concave ring to rotate synchronously.

[0025] In one embodiment, one of the two torsion arms is a first torsion arm, and the other is a second torsion arm;

[0026] The first torsion arm has a curved arc segment;

[0027] The driver is further provided with a first limiting member, which is connected to the top wall of the first recessed area and is located radially outside the first torsion arm.

[0028] In one embodiment, the driver is further provided with a second stopper, the second stopper is connected to the top wall of the first recessed area and is located at a position where the recessed ring is away from the torsion arm;

[0029] When the valve is opened, when the limiting column rotates relative to the concave ring to deviate from the side of the concave ring away from the two torsion arms, the second limiting member abuts against the position of the concave ring away from the torsion arms.

[0030] In one embodiment, the driver further includes a third limiting member, and the third limiting member is covered outside the arc segment.

[0031] In one embodiment, the outer end of the torsion arm is bent at a preset angle to form an abutment section.

[0032] When the valve is closed, the abutting sections of the two torsion arms gradually separate from the two pits and abut against the side walls of the groove.

[0033] In one embodiment, the first torsion arm bag is a straight line segment connected to the arc segment, and the arc segment is an arc segment extending around the vertical axis and connected to the concave ring;

[0034] The inner end of the straight line segment is connected to the arc segment, and the outer end is bent to form the abutting segment.

[0035] In one embodiment, the valve further comprises a metal sheet, the metal sheet comprising a first section and a second section connected to each other, the first section comprising concave segments respectively attached to the inner walls of the two pits; the second section attaches to at least a portion of the side wall of the groove,

[0036] When the valve is closed, the outer ends of the two torsion arms gradually separate from the first sections of the two metal sheets and abut against the second sections.

[0037] In one embodiment, the limiting column is located radially inside the first recessed area;

[0038] The top wall of the first recessed area is provided with a second recessed area, and the second recessed area is formed by a recess located radially outside the first recessed area;

[0039] A portion of the torsion arm is located below the second recessed area.

[0040] In one embodiment, the first limiting member and the third limiting member are respectively connected to the top wall of the first recessed area.

[0041] In one embodiment, a positioning hole is provided at the bottom end of the valve core;

[0042] The bottom wall of the channel is provided with a positioning rod inserted into the positioning hole.

[0043] In one embodiment, the inner wall of the channel is provided with a convex ring, the convex ring extends around the horizontal axis and is close to an opening at one end of the channel;

[0044] The valve further comprises:

[0045] an inner valve seat, the inner valve seat being installed in the passage and being located on the inner side of the convex ring along the horizontal axis;

[0046] an outer valve seat, the outer valve seat being located in the passage and outside the convex ring along the horizontal axis;

[0047] a positioning ring connected to the radial inner side of the convex ring and covering the inner valve seat along the inner side of the horizontal axis and covering the outer valve seat at an outer end; and

[0048] A valve cover is connected to the valve body and covers an opening at one end of the passage, and the valve cover is sealingly connected to the outer valve seat.

[0049] In one embodiment, the valve further comprises:

[0050] a sealing ring, the sealing ring being sealingly connected to the inner wall of the channel and being located at the other end opening of the channel; and

[0051] A flange is connected to the valve body and covers the other end opening of the channel, and the flange is sealed and connected to the sealing ring.

[0052] In one embodiment, the bottom wall of the groove is provided with an insertion hole;

[0053] The bottom end of the valve stem extends from the valve stem hole and the mounting hole to the insertion hole in sequence.

[0054] In one embodiment, the jack is a square hole;

[0055] The mounting hole is a spline groove;

[0056] The bottom end of the valve stem is respectively adapted to the insertion hole and the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1It is an exploded view of a valve according to an embodiment of the present utility model.

[0058] Figure 2 yes Figure 1 A cross-sectional view of the valve in the open state in the illustrated embodiment.

[0059] Figure 3 yes Figure 1 Assembly diagram of the driver and spring wire in the illustrated embodiment.

[0060] Figure 4 yes Figure 3 Exploded view of the driver and spring wire in the illustrated embodiment.

[0061] Figure 5 , Figure 6 and Figure 7 yes Figure 1 Assembly diagram of the driver and spring wire in the illustrated embodiment.

[0062] Figure 8 yes Figure 6 Cross-sectional view of the actuator and spring wire of the illustrated embodiment.

[0063] Fig. 9 yes Figure 1 A top view of the valve core in the illustrated embodiment.

[0064] Fig.10 and Fig.11 yes Figure 1 The assembly diagram of the valve core, driver and spring wire in the open state in the illustrated embodiment.

[0065] Fig.12 yes Fig.11 A cross-sectional view of the valve core, actuator and spring wire assembly in the illustrated embodiment.

[0066] Fig.13 and Fig.14 yes Figure 1 The assembly diagram of the valve core, the driver and the spring wire in the closed state in the illustrated embodiment.

[0067] Fig.15 yes Fig.14 A cross-sectional view of the valve core, actuator and spring wire in the closed state in the illustrated embodiment.

[0068] Fig.16 yes Figure 1 A cross-sectional view of the valve in the closed state in the illustrated embodiment.

[0069] Figure numerals: 100, valve; 1, valve body; 11, channel; 12, valve stem hole; 13, positioning rod; 14, convex ring; 2, valve core; 21, sealing portion; 22, flow channel; 23, groove; 231, plug hole; 24, pit; 25, inner convex profile; 26, limiting protrusion; 27, outer concave profile; 28, metal sheet; 281, first section; 282, second section; 29, positioning hole; 3, driver; 31, mounting hole; 32, outer convex profile; 33, first Recessed area; 34, second recessed area; 35, limiting column; 36, first limiting member; 37, second limiting member; 38, third limiting member; 4, spring wire; 41, concave ring; 42, first torsion arm; 421, arc segment; 422, straight segment; 43, second torsion arm; 44, abutting segment; 5, valve stem; 51, spline; 52, plug; 6, inner valve seat; 7, outer valve seat; 8, positioning ring; 9, sealing ring; 101, valve cover; 102, flange; 103, anti-theft ring. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0071] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0072] The following will be combined with the accompanying drawings to describe the various embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0073] References throughout the specification to "one 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. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0074] 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.

[0075] In the following description, in order to clearly demonstrate the structure and working mode of the utility model, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0076] The utility model relates to a valve 100, such as Figure 1 As shown, the valve 100 includes a valve body 1, a valve core 2, a drive assembly, a valve stem 5, an inner valve seat 6, an outer valve seat 7, a positioning ring 8, a plurality of sealing rings 9 of different specifications, a valve cover 101, a flange 102 and an anti-theft ring 103. The valve body 1 has a channel 11 extending along a horizontal axis, and the channel 11 runs through both ends of the valve body 1 along the horizontal axis, that is, the two ends of the channel 11 along the horizontal axis are open. The top surface of the valve body 1 is also provided with a valve stem hole 12 extending along the vertical axis, and the valve stem hole 12 extends to the channel 11 and communicates with the channel 11.

[0077] The valve core 2 is located in the channel 11 and can rotate about the vertical axis and has a slight movement component along the horizontal axis. Figure 1 In the illustrated embodiment, the valve core 2 of the ball valve is substantially in the form of a hollow ball, and has a sealing portion 21 and a flow channel 22, wherein the sealing portion 21 is a portion of the spherical shell of the hollow ball. The flow channel 22 runs through the valve core 2. When the valve 100 is open, the flow channel 22 of the valve core 2 extends in the same direction as the horizontal axis, and the flow channel 22 is connected to the channel 11 to facilitate the passage of fluid. When the valve is closed, the sealing portion 21 of the valve core 2 blocks the channel 11 to restrict the passage of fluid.

[0078] The top surface of the valve core 2 is provided with a groove 23 aligned with the valve stem hole 12. The groove 23 is generally cylindrical in shape and the side wall of the groove 23 forms two recesses 24 that are recessed radially outward. In addition, the side wall of the groove 23 is provided with an inner convex profile 25 that protrudes radially inward and a limiting protrusion 26. The inner convex profile 25 protrudes radially toward the side wall of the groove 23, and the limiting protrusion 26 also protrudes radially toward the groove 23 and is spaced circumferentially from the inner convex profile 25. The side wall of the groove 23 is also provided with an outer concave profile 27 that is recessed radially outward of the groove 23 and is located between the limiting protrusion 26 and the inner convex profile 25.

[0079] The drive assembly includes a driver 3 and a spring wire 4, wherein the driver 3 is roughly in the shape of a round pancake and is installed in the groove 23. The driver 3 is provided with a mounting hole 31 extending along the vertical axis. The mounting hole 31 passes through the top and bottom ends of the driver 3 and is aligned with the valve stem hole 12 in the vertical direction. Figure 3-5 In the illustrated embodiment, the valve stem hole 12 is a spline groove.

[0080] The radial outer side of the driver 3 is provided with a protruding outer convex profile 32, which protrudes from the radial outer side of the driver 3 and is located at the outer concave profile 27 of the groove 23 in the open state. In the closed state, the outer cam rotates to the inner convex profile 25 of the groove 23, thereby sealing and locking the valve core 2 and the channel 11.

[0081] The bottom wall of the driver 3 is provided with a first recessed area 33, which extends around the vertical axis to form an arc and is spaced apart from the outer convex contour 32. The top wall of the first recessed area 33 is also provided with a second recessed area 34 recessed upward, which is located radially outside the first recessed area 33 and is also roughly arc-shaped.

[0082] A limiting column 35 is further disposed on the top wall of the first recessed area 33 . The limiting column 35 is a column and is located radially inward of the first recessed area 33 . The height of the column does not exceed the bottom wall of the driver 3 .

[0083] The spring wire 4 has a certain elasticity and can bend when an external force is applied. It is generally made of steel wire. The spring wire 4 specifically includes a concave ring 41 and two torsion arms. The concave ring 41 is annular and sleeved outside the limiting column 35. The outer ends of the two torsion arms are located radially outside the driver 3. The spring wire 4 and the driver 3 can move relative to each other. In other embodiments, the concave ring 41 can also be in a spring shape and sleeved outside the limiting column 35, or the concave ring 41 and the limiting column 35 are not provided, and the spring wire 4 is directly limited to the driver 3 through several limiting members.

[0084] It should be understood that in other embodiments, the radial outer side of the driver 3 does not need to be provided with an outer convex profile 32, and accordingly, the side wall of the groove 23 does not have an inner convex profile 25 and a limiting protrusion 26 protruding radially inward. That is to say, the driver 3 drives the valve core to rotate by other means, and the spring wire 4 cooperates with the driver 3 to drive the valve core to rotate.

[0085] The top end of the valve stem 5 is located at the top of the valve body 1 and exceeds the top of the valve body 1 and is connected to an external handle. Turning the handle can cause the valve stem 5 to move in conjunction.

[0086] The bottom end of the valve stem 5 extends from the valve stem hole 12 to the mounting hole 31, and the middle part of the valve stem 5 is sealed and connected to the valve stem hole 12 through two sealing rings 9, and the bottom end of the valve stem 5 is a spline 51, which is adapted to the spline groove of the driver 3. This implementation can refer to patent CN103016776B and will not be repeated here.

[0087] The valve stem 5 can drive the driver to rotate and open or close the valve 100. When the valve is closed, the valve stem 5 drives the driver 3 to rotate relative to the spring wire 4 around the vertical axis at a preset angle and then drives the spring wire 4 to rotate synchronously, that is, the limit column rotates to the side of the concave ring away from the two torsion arms and then drives the concave ring to rotate synchronously. The outer ends of the two torsion arms gradually separate from the two pits 24 and abut against the side walls of the groove 23. The outer convex profile 32 abuts against the side walls of the groove 23 and drives the valve core 2 to rotate around the vertical axis to a preset position synchronously with the spring wire 4, and then rotates about 90°. The outer convex profile 32 moves along the inner convex profile 25 and makes the valve core 2 have a motion component along the horizontal axis.

[0088] When the valve 100 is opened, the valve stem 5 drives the driver 3 to rotate around the vertical axis, so that the outer convex profile 25 moves along the inner convex profile 25 and the valve core 2 has a movement component along the horizontal axis, and the two torsion arms gradually move to the two pits 24 and drive the valve core 2 to rotate, or the two torsion arms abut against the side walls of the groove 23 to drive the valve core 2 to rotate a certain angle and then move into the pit 24.

[0089] When the valve 100 is open, Figure 10-12 As shown, the outer convex contour 32 of the driver 3 is located at the outer concave contour 27 of the groove 23, the outer ends of the two torsion arms are respectively located in the two pits 24, and the flow channel 22 is aligned with the openings at both ends of the channel 11, so as to facilitate the flow of the fluid along the horizontal axis. When the valve 100 is closed, the valve stem 5 needs to be rotated to drive the driver 3 to rotate, and the limit column 35 moves into the concave ring 41 of the spring wire 4 and drives the concave ring 41 and the spring wire 4 to rotate as a whole. The two torsion arms of the spring wire 4 and the two pits 24 cooperate with each other, and the outer convex contour 32 and the inner wall of the groove 23 cooperate to drive the valve core to rotate. Continue to rotate the valve stem 5, as shown in FIG. Figure 13-15 As shown, the outer ends of the two torsion arms of the spring wire gradually move out of the pit 24 and abut against the side wall of the groove 23, and the outer convex profile 32 moves from the outer concave profile 27 to the inner convex profile 25 and moves along the inner convex profile 25, tilting the valve core 2 along the horizontal axis by a certain amount, so that the valve core 2 and the channel 11 are sealed and matched, and the valve 100 is closed.

[0090] When the valve 100 is opened, the valve stem 5 is rotated in the opposite direction. At this time, the valve stem 5 drives the driver 3 to rotate in the opposite direction around the vertical axis, and the outer convex contour 32 moves in the opposite direction along the inner convex contour 25 to the outer concave contour 27. The two torsion arms gradually move to the two pits and drive the valve core to rotate, so that the valve core 2 has a reverse movement component along the horizontal axis, and the sealing portion 21 of the valve core 2 and the channel of the valve body 1 are loosened. The valve stem 1 drives the driver 3 to drive the valve core to continue to reverse approximately 90°, and the flow channel 22 of the valve core 2 is connected to the channel 11 of the valve body 1, and the valve 100 is opened.

[0091] In one embodiment, when the valve 100 is opened, the driver 3 rotates around the vertical axis at a preset angle and then drives the spring wire 4 to rotate synchronously, that is, the driver 3 first rotates a certain angle relative to the spring wire 4, so that the limit post and the concave ring are separated from the two torsion arms and then drives the spring wire 4 to move synchronously. The limit post rotates relative to the concave ring to deviate from the side of the concave ring away from the two torsion arms and then drives the concave ring to rotate synchronously.

[0092] In one embodiment, when the valve is opened, the driver and the spring wire rotate synchronously and then rotate relative to the spring wire. That is, the driver 3 and the spring wire 4 rotate synchronously and then move relative to the spring wire 4, so that the limit column and the concave ring are spaced away from the two torsion arms.

[0093] In addition, regarding the specific shape of the outer convex profile 32, reference can be made to the shapes of the starting portion, the middle portion, and the ending portion in patent CN103016776B, which will not be described in detail. It should be understood that in other embodiments, the outer convex profile 32 can also be set to other shapes, as long as the outer convex profile 32 of the driver 3 can be easily moved to the radial inner side thereof and push the valve core to move along the horizontal axis, without limiting the specific shape of the inner convex profile 32.

[0094] As a preferred solution, the outer ends of the two torsion arms are bent at a preset angle to form an abutment section 44. Figure 2-4 In the embodiment shown, the outer ends of the two torsion arms are bent upward by approximately 90° to form a contact section 44. When the valve is opened, the contact sections 44 of the two torsion arms are respectively located in the two recesses 24. When the valve is closed, the contact sections 44 of the two torsion arms gradually separate from the two recesses and abut against the side walls of the groove. The contact section 44 can increase the friction and stability between the torsion arm and the side wall of the groove 23.

[0095] In some embodiments, one of the two torsion arms is a first torsion arm 42, and the other is a second torsion arm 43. The second torsion arm 43 is generally in a strip shape and extends in the tangent direction of the cylinder formed by the vertical axis. The inner end of the second torsion arm 43 is connected to the concave ring 41, and the outer end is bent to form the abutment section 44. The length of the first torsion arm 42 is slightly longer than that of the second torsion arm 43, and includes an arc segment 421 and a straight segment 422 connected to each other. The arc segment 421 is an arc segment extending around the vertical axis and connected to the concave ring 41. The inner end of the straight segment 422 is connected to the arc segment 421, and the outer end extends to the outside of the driver 3 and is bent to form the abutment section 44.

[0096] In order to fix the bending direction of the first torsion arm 42, the top wall of the first recessed area 33 is further provided with a first stopper 36, and the first stopper 36 is located at the radial outer side of the first torsion arm 42. Specifically, the first stopper 36 is located at the outer side of the inner end of the straight section 422, that is, the straight section 422 of the first torsion arm 42 is fixed between the first stopper 36 and the side wall of the groove 23.

[0097] In some embodiments, the top wall of the first recessed area 33 is further provided with a second stopper 37, which is located outside the recessed ring 41 and away from the spring wire 4 to prevent the recessed ring 41 from being separated from the stopper column 35. When the valve is opened, when the stopper column rotates relative to the recessed ring to a side of the recessed ring away from the two torsion arms, the second stopper abuts against the position of the recessed ring away from the torsion arms and drives the recessed ring to rotate together with the stopper column.

[0098] In some other embodiments, the top wall of the second recessed area 34 is further provided with a third limiting member 38 . The third limiting member 38 is tubular and sleeved outside the arc segment 421 of the first torsion arm 42 to fix the arc segment.

[0099] The top wall of the first recessed area 33 is further provided with a second recessed area 34 . The second recessed area 34 is substantially arc-shaped extending around a vertical axis and is located radially outside the first recessed area 33 , while the limiting column 35 is located radially inside the first recessed area 33 .

[0100] The first limiting member 36, the second limiting member 37 and the second limiting member 37 are all connected to the radial inner side of the first recessed area 33 and connected to the top wall of the first recessed area 33. The concave ring 41 is sleeved on the limiting column 35 and is also located at the radial inner side of the first limiting area. A portion of the second torsion arm 43 is located below the first recessed area 33, and another portion is located below the second recessed area 34. The arc segment 421 of the second torsion arm 43 is located at the radial inner side of the first recessed area 33, the inner end of the straight segment 422 is located at the radial inner side of the first recessed area 33, and the outer end is located below the second recessed area 34. The second recessed area 34 provides space for the two torsion arms to bend and deform.

[0101] As a preferred solution, the valve 100 further includes a metal sheet 28, such as Figure 1 As shown, the metal sheet 28 includes a first section 281 and a second section 282 connected to each other, wherein the first section 281 includes two recessed segments, the two recessed segments are arc segments with a certain curvature and respectively fit the inner walls of the two pits 24 .

[0102] The second section 282 includes several arc segments, and one of the arc segments is located between the two concave segments and is respectively connected to one end of the two concave segments, and the other two arc segments are respectively connected to the other two ends of the two concave segments.

[0103] After the valve is opened, the abutting sections 44 of the two torsion arms are respectively located in the first sections 281 of the metal sheet 28. When the valve is closed, the outer ends of the two torsion arms gradually separate from the first sections 281 of the two metal sheets 28 and abut against the second sections 282. The metal sheet 28 can prevent the torsion arms from causing wear on the side wall of the groove 23.

[0104] As a preferred solution, the bottom wall of the groove 23 is provided with an insertion hole 231, and the bottom end of the valve stem 5 sequentially extends from the valve stem hole 12 and the mounting hole 31 to the insertion hole 231. The insertion hole 231 is formed by a depression of a part of the bottom wall of the groove 23, and the bottom end of the valve stem 5 can be inserted into the insertion hole 231 and cooperate with the insertion hole 231 to drive the valve core 2 to move.

[0105] The shape of the plug hole 231 is a square hole, and the mounting hole 31 is a spline groove. The bottom end of the valve stem 5 is inserted into the square hole, and a part of the valve stem 5 is also provided with a spline 51 that cooperates with the spline groove, that is, the bottom end of the valve stem 5 needs to adapt to the plug hole 231 and the mounting hole 31 respectively.

[0106] The bottom end of the valve core 2 is provided with a positioning hole 29, and the positioning hole 29 is located on the vertical axis, and the bottom wall of the passage 11 of the valve body 1 is provided with a positioning rod 13 inserted into the positioning hole 29. When the valve core 2 rotates, it can rotate around the positioning rod 13. It should be understood that when the valve core 2 moves along the horizontal axis, the positioning rod 13 can swing slightly and will not interfere with the movement of the valve core 2.

[0107] exist Figure 1 and Figure 2 In the illustrated embodiment, a rod hole for installing a positioning rod 13 is also provided at the top of the valve body 1, and the bottom end of the positioning rod 13 is inserted into the rod hole and sealed with the rod hole through two sealing rings 9, while the top end extends into the channel 11 and is inserted into the positioning hole 29 of the valve core 2.

[0108] The inner wall of the channel 11 is provided with a convex ring 14 , which extends around the horizontal axis and is close to an opening at one end of the channel 11 .

[0109] The inner valve seat 6 and the outer valve seat 7 are respectively annular and are respectively installed in the channel 11. The inner valve seat 6 is located on the inner side of the convex ring 14 along the horizontal axis, while the outer valve seat 7 is located on the outer side of the convex ring 14 along the horizontal axis. That is, the inner valve seat 6 and the outer valve seat 7 are respectively located on both sides of the convex ring 14 along the horizontal axis. The inner valve seat 6 and the outer valve seat 7 can be silicone rings or rubber rings. The inner valve seat 6 is used for sealing connection with the valve core 2, while the outer valve seat 7 is used for sealing connection with the valve stem 5.

[0110] The positioning ring 8 is also annular and connected to the radial inner side of the convex ring 14. The width of the positioning ring 8 along the horizontal axis is greater than the width of the inner valve seat 6 and the outer valve seat 7 along the horizontal axis. Therefore, after the positioning ring 8 is installed on the convex ring 14, it covers the inner valve seat 6 on the inner side along the horizontal axis and the outer valve seat 7 on the outer side, thereby fixing the inner valve seat 6 and the outer valve seat 7.

[0111] When the valve is opened, the valve core 2 is away from the inner valve seat 6 , and when the valve is closed, the sealing portion 21 of the valve core 2 blocks the passage 11 and is in sealing contact with the inner valve seat 6 .

[0112] The valve cover 101 is connected to the valve body 1 and covers an opening at one end of the passage 11 . The valve cover 101 is sealed and connected to the outer valve seat 7 .

[0113] The flange 102 is connected to the valve body 1 and covers the other end opening of the channel 11, and the flange 102 is sealed to the valve body 1 through another sealing ring 9, and the sealing ring 9 is sealed to the inner wall of the channel 11 and is located at the other end opening of the channel 11.

[0114] The anti-theft ring is connected to the valve cover 101 for anti-theft. The top end of the valve stem 5 is hollow, and a plug 52 is installed inside.

[0115] The utility model replaces the previous elastic convex rib with the spring wire 4, which can not only increase the service life of the valve body 1, but also only needs to replace the spring wire 4 even if the spring wire 4 is broken, thereby reducing the maintenance cost.

[0116] Preferred embodiments of the present invention have been described in detail above, but 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 further embodiments.

[0117] 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 considered 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 these claims are entitled.

[0118] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A valve, characterized in that: include: A valve body, the valve body having a passage extending along a horizontal axis and a valve stem hole extending to the passage along a vertical axis, the passage being open at both ends along the horizontal axis; A valve core, the valve core is installed in the passage and is arranged to be rotatable around the vertical axis and to have a motion component along the horizontal axis, the top surface of the valve core is provided with a groove aligned with the valve stem hole, and the side wall of the groove forms two pits recessed radially outward; A drive assembly, the drive assembly comprising a driver and a spring wire, the driver being installed in the groove and provided with a mounting hole, the driver being connected to the spring wire and being movable relative to the spring wire; the spring wire having two torsion arms, the outer ends of the two torsion arms being located radially outward of the driver; and A valve stem, the top end of which is located at the top of the valve body, and the bottom end of which extends from the valve stem hole to the mounting hole of the driver; When the valve is closed, the valve stem drives the driver to rotate relative to the spring wire around the vertical axis at a preset angle and then drives the spring wire to rotate synchronously, the outer ends of the two torsion arms gradually separate from the two pits and abut against the side walls of the groove, and the spring wire drives the valve core to rotate around the vertical axis to a preset position; When the valve is opened, the valve stem drives the driver to rotate around the vertical axis, and drives the valve core to rotate around the vertical axis.

2. The valve according to claim 1, characterized in that: The side wall of the groove forms an inner convex profile protruding radially inward; The radial outer side of the driver is provided with a protruding outer convex profile; When the valve is closed, the outer convex profile abuts against the side wall of the groove and synchronously drives the valve core to rotate around the vertical axis to a preset position with the spring wire, and then the outer convex profile moves along the inner convex profile and causes the valve core to have a movement component along the horizontal axis; When the valve is opened, the valve stem drives the driver to rotate about the vertical axis, so that the outer convex profile moves along the inner convex profile and the valve core has a movement component along the horizontal axis.

3. The valve according to claim 2, characterized in that: When the valve is opened, the driver rotates around the vertical axis at a preset angle and then drives the spring wire to rotate synchronously.

4. The valve according to claim 2, characterized in that: When the valve is opened, the driver and the spring wire rotate synchronously and then rotate relative to the spring wire.

5. The valve according to claim 3, characterized in that: A limiting column is provided on the top surface of the driver; The spring wire is connected to the limiting column, and the limiting column can move relative to the spring wire; When the valve is closed, the limiting column rotates relative to the spring wire at a preset angle and then drives the spring wire to rotate synchronously.

6. The valve according to claim 5, characterized in that The bottom surface of the driver is provided with a first recessed area extending around the vertical axis, and the top wall of the first recessed area is provided with the limiting column; The spring wire is located in the first recessed area and includes a concave ring, the concave ring is sleeved outside the limiting column and the two ends of the concave ring are respectively connected to the inner ends of the two torsion arms; When the valve is closed, the limit column rotates to the side where the concave ring is away from the two torsion arms, and then drives the concave ring to rotate synchronously; When the valve is opened, the limiting column rotates relative to the concave ring to a side of the concave ring away from the two torsion arms, and then drives the concave ring to rotate synchronously.

7. The valve according to claim 6, characterized in that One of the two torsion arms is a first torsion arm, and the other is a second torsion arm; The first torsion arm has a curved arc segment; The driver is further provided with a first limiting member, which is connected to the top wall of the first recessed area and is located radially outside the first torsion arm.

8. The valve according to claim 7, characterized in that The driver is further provided with a second stopper, which is connected to the top wall of the first recessed area and is located at a position where the recessed ring is away from the torsion arm; When the valve is opened, when the limiting column rotates relative to the concave ring to deviate from the side of the concave ring away from the two torsion arms, the second limiting member abuts against the position of the concave ring away from the torsion arms.

9. The valve according to claim 7, characterized in that: The driver further comprises a third limiting member, and the third limiting member is covered outside the arc segment.

10. The valve according to claim 7, characterized in that The outer end of the torsion arm is bent at a preset angle to form an abutment section. When the valve is closed, the abutting sections of the two torsion arms gradually separate from the two pits and abut against the side walls of the groove.

11. The valve according to claim 10, characterized in that a straight line segment connecting the first torsion arm package and the arc segment, wherein the arc segment is an arc segment extending around the vertical axis and connected to the concave ring; The inner end of the straight line segment is connected to the arc segment, and the outer end is bent to form the abutting segment.

12. The valve according to claim 2, characterized in that The valve further comprises a metal sheet, the metal sheet comprising a first section and a second section connected to each other, the first section comprising concave segments respectively attached to the inner walls of the two pits; the second section attaches to at least a portion of the side wall of the groove, When the valve is closed, the outer ends of the two torsion arms gradually separate from the first sections of the two metal sheets and abut against the second sections.

13. The valve according to claim 9, characterized in that The limiting column is located radially inside the first recessed area; The top wall of the first recessed area is provided with a second recessed area, and the second recessed area is formed by a recess located radially outside the first recessed area; A portion of the torsion arm is located below the second recessed area.

14. The valve according to claim 13, characterized in that The first limiting member and the third limiting member are respectively connected to the top wall of the first recessed area.

15. The valve according to claim 1, characterized in that A positioning hole is provided at the bottom end of the valve core; The bottom wall of the channel is provided with a positioning rod inserted into the positioning hole.

16. The valve according to claim 1, characterized in that The inner wall of the channel is provided with a convex ring, the convex ring extends around the horizontal axis and is close to an opening at one end of the channel; The valve further comprises: an inner valve seat, the inner valve seat being installed in the passage and being located on the inner side of the convex ring along the horizontal axis; an outer valve seat, the outer valve seat being located in the passage and outside the convex ring along the horizontal axis; a positioning ring connected to the radial inner side of the convex ring and covering the inner valve seat along the inner side of the horizontal axis and covering the outer valve seat at an outer end; and A valve cover is connected to the valve body and covers an opening at one end of the passage, and the valve cover is sealingly connected to the outer valve seat.

17. The valve according to claim 1, characterized in that The valve further comprises: a sealing ring, the sealing ring being sealingly connected to the inner wall of the channel and being located at the other end opening of the channel; and A flange is connected to the valve body and covers the other end opening of the channel, and the flange is sealed and connected to the sealing ring.

18. The valve according to claim 1, characterized in that The bottom wall of the groove is provided with an insertion hole; The bottom end of the valve stem extends from the valve stem hole and the mounting hole to the insertion hole in sequence.

19. The valve according to claim 18, characterized in that The jack is a square hole; The mounting hole is a spline groove; The bottom end of the valve stem is respectively adapted to the insertion hole and the mounting hole.

Images