CN214466387U - Flow limiting valve - Google Patents
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- CN214466387U CN214466387U CN202023038915.1U CN202023038915U CN214466387U CN 214466387 U CN214466387 U CN 214466387U CN 202023038915 U CN202023038915 U CN 202023038915U CN 214466387 U CN214466387 U CN 214466387U
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Abstract
本实用新型公开了一种限流阀，其包括：阀芯，其设有朝向进水方向的过水面，阀芯上设有若干朝向过水面的抵挡块，调节件，其可旋转地滑设于阀芯内，其包括调节件本体和从调节件本体外壁沿径向向外延伸的凸盘；调节件本体一端形成朝向进水方向的第一凸起；凸盘设有朝向过水面的封堵部，凸盘的周沿设有与抵挡块适配的让位槽，旋转调节件，使让位槽与抵挡块相对，以使凸盘与抵挡块滑动配合；弹性件，其作用于封堵部与阀芯之间，使封堵部远离过水面；其中，下压并旋转调节件，使让位槽远离各抵挡块，以使凸盘在弹性件的作用下与抵挡块背离进水方向的面抵接。该限流阀方便拆卸，且在低压情况下能实现大流量。
The utility model discloses a restrictor valve, which comprises: a valve core, which is provided with a water-passing surface facing the water inlet direction, a plurality of blocking blocks facing the water-passing surface on the valve core, and an adjusting piece, which is rotatably slidable Inside the valve core, it includes a body of the regulating member and a convex plate extending radially outward from the outer wall of the body of the regulating member; one end of the body of the regulating member is formed with a first protrusion facing the water inlet direction; the convex plate is provided with a seal facing the water-passing surface. In the blocking part, the perimeter of the convex plate is provided with a let-away groove that is adapted to the blocking block, and the adjusting member is rotated to make the let-away groove opposite to the blocking block, so that the convex disk and the blocking block can be slidably matched; the elastic piece acts on the sealing block. Between the blocking part and the valve core, the blocking part is kept away from the water surface; wherein, the adjusting member is pressed down and rotated, so that the abdication groove is away from each blocking block, so that the convex plate and the blocking block are away from the water inlet under the action of the elastic member face contact in the direction. The restrictor valve is easy to disassemble and can achieve large flow under low pressure.
Description
Technical Field
The utility model relates to a valve field, concretely relates to restriction valve.
Background
The restriction valve is arranged in the flow channel to avoid waste of water resources, and the restriction valve is generally arranged in the pipeline, so that when the pipeline needs to be cleaned due to accumulation of dirt or parts are damaged and need to be replaced, the general restriction valve needs to be pried out of the flow channel by means of tools, and the restriction valve is easy to damage.
The flow limiting valve is generally characterized in that an elastic throttling piece is arranged in the flow limiting valve, the elastic throttling piece is deformed under the action of water pressure, so that the water passing area in the flow limiting valve is reduced, and throttling is performed by utilizing the principle that the larger the water flow is, the smaller the water passing area is; however, under the condition of small water flow and low pressure, the elastic throttling piece blocks a part of water passing surface, so that the water flow of the flow limiting valve is smaller when the pressure is low, and the normal use is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned defect or the problem that exist among the background art, provide a convenient dismantlement, and can obtain the restriction valve of more flows when the low pressure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a flow restriction valve, comprising: the water inlet valve comprises a valve core, a regulating piece and a water outlet valve, wherein the valve core is provided with a water passing surface facing the water inlet direction, the valve core is provided with a plurality of abutting blocks facing the water passing surface, the regulating piece is rotatably and slidably arranged in the valve core and comprises a regulating piece body and a convex disc extending outwards from the outer wall of the regulating piece body along the radial direction; a first bulge facing to the water inlet direction is formed at one end of the adjusting piece body; the convex disc is provided with a plugging part facing the water passing surface, the periphery of the convex disc is provided with a yielding groove matched with the abutting block, and the adjusting piece is rotated to enable the yielding groove to be opposite to the abutting block so as to enable the convex disc to be in sliding fit with the abutting block; the elastic piece acts between the plugging part and the valve core to enable the plugging part to be far away from the water passing surface; the adjusting piece is pressed downwards and rotated, so that the yielding groove is far away from each abutting stop block, and the convex disc is abutted against the surface of the abutting stop block, which is far away from the water inlet direction, under the action of the elastic piece.
Furthermore, one end of the valve core, which is far away from the water inlet direction, is provided with a limiting surface which is far away from the water passing surface; the adjusting piece body is provided with a first bulge, one end of the adjusting piece body, which is far away from the first bulge, forms an elastic clamping hook, and the adjusting piece is pressed against the limiting surface under the action of the elastic piece.
Further, the valve core comprises a valve core body, an annular wall and a grid plate; the two ends of the valve core body are opened; the annular wall is arranged in the valve core body, the outer wall of the annular wall is fixedly connected with the inner wall of the valve core body through the grid plate, a through hole is formed in the annular wall, and the end face of the through hole facing the water inlet direction forms the water passing surface.
Further, the device also comprises an elastic throttling element; a plurality of second bulges are circumferentially arranged on the inner wall of the valve core body at intervals, and the second bulges are close to the surface of the grid plate facing the water inlet direction; the elastic throttling piece is sleeved outside the ring wall and is located on the grid plate.
Furthermore, an abutting part is arranged in an inner cavity of one end of the annular wall, which is far away from the water inlet direction, and a gap is reserved between the abutting part and the annular wall to form a water passing gap; the elastic member abuts against the abutting portion.
Further, the adjusting piece body is a shaft rod body; the end face of one end of the abutting part, which is far away from the water inlet direction, forms the limiting surface, and the abutting part is provided with a through hole; the elastic piece is sleeved outside the adjusting piece body; the regulating part body extends into the through hole and is rotatably and slidably matched with the through hole, and the elastic clamping hook on the regulating part body penetrates out of the through hole and is abutted against the limiting surface.
Furthermore, a plurality of convex columns extending along the direction deviating from the water inlet direction are uniformly distributed on the end surface of the valve core body facing the water inlet direction; the free end of each convex column is provided with the abutting block which extends inwards along the radial direction.
Furthermore, the outer wall of the valve core body is provided with a clamping protrusion extending outwards along the radial direction.
Furthermore, an elastic sealing surface facing the water passing surface is arranged on the convex disc.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
1. the elastic component is located between shutoff portion and the case, makes the shutoff portion keep away from the surface of water, and rotatory each groove of stepping down during the use is relative with respectively to the dog, makes the flange under the effect of elastic component with to dog sliding fit, the utility model discloses a restriction valve has increased a surface of water of crossing towards the direction of intaking on prior art's basis to obtain extra flow when the low pressure. When the water flow flowing to the flow-limiting valve from the water inlet direction is large and the formed water pressure is large, the water pressure borne by the convex disc on the adjusting piece is larger than the elastic force borne by the elastic piece, the elastic piece is compressed by the convex disc, the plugging part is close to or props against the water passing surface, and the water passing gap between the convex disc and the water passing surface is reduced or the water passing surface is plugged. When the water flow flowing to the flow limiting valve from the water inlet direction is small and the formed water pressure is small, the water pressure borne by the convex disc on the adjusting piece is smaller than the elastic force of the elastic piece borne by the convex disc, and the elastic piece enables the convex disc to be far away from the water passing surface so as to increase the water passing gap between the convex disc and the water passing surface. Therefore, the convex disc can control the water passing amount of the water passing surface according to the water pressure, so that the flow limiting valve can obtain larger flow when the pressure is low. When the restriction valve needs to be disassembled, the adjusting piece is pressed downwards, the adjusting piece is rotated to enable each abdicating groove to be far away from each abutting stop block, the convex disc is abutted against the abutting stop blocks under the action of the elastic piece, and at the moment, the first bulge of the adjusting piece is pulled out by using a tool or a hand, so that the whole restriction valve can be disassembled.
2. An elastic clamping hook matched with the limiting surface is arranged at one end, away from the first bulge, of the adjusting piece body, so that the adjusting piece is limited, and the adjusting piece is prevented from being separated from the valve core in the using process; the regulating part enables the limiting surface to be in butt fit with the elastic clamping hook under the action of the elastic part, when the flow limiting valve is disassembled, the convex disc compresses the elastic part due to the fact that the regulating part is pressed downwards, the elastic clamping hook is downward separated from the limiting surface at the moment, and the elastic clamping hook is prevented from being damaged when the valve is disassembled.
3. The valve core comprises a valve core body, a ring wall and a grid plate. The two ends of the valve core body are opened, the annular wall is arranged in the valve core body, the outer wall of the annular wall is fixedly connected with the inner wall of the valve core body through the grid plate, the annular wall is internally provided with a through hole, and the end surface of the annular wall facing to the water inlet direction forms a water passing surface. The valve core body is internally provided with a circular wall to divide the inner cavity of the valve core body into two mutually independent water paths. The grid plate is positioned between the inner wall of the valve core body and the outer wall of the annular wall to form an annular groove for installing the elastic throttling element. The elastic throttling element is sleeved outside the ring wall and is located on the grid plate, and a water passing gap is formed between the elastic throttling element and each second protrusion. When water flows to the flow channel between the inner wall of the valve core body and the outer wall of the annular wall, the elastic throttling element deforms under the action of water pressure, so that the water passing gap between the elastic throttling element and each second protrusion is reduced for throttling. The adjusting piece can adjust the size of a water passing gap between the convex disc and the through hole or block the through hole according to the size of water pressure generated by water flow, so that the phenomenon that the water flow is too small at low pressure is avoided.
4. The inner cavity of one end of the annular wall, which deviates from the water inlet direction, is provided with the abutting part, a gap is reserved between the abutting part and the annular wall to form a water passing gap, and the elastic part is abutted against the abutting part, so that the structural design is reasonable.
5. The adjusting piece is a shaft rod body, the end face of one end of the abutting part, which is far away from the water inlet direction, forms a limiting surface, the abutting part is provided with a through hole, and the elastic piece is sleeved outside the adjusting piece body; the adjusting piece body extends into the through hole and is rotatably matched with the through hole in a sliding way, and the elastic clamping hook penetrates out of the through hole and is abutted against the abutting surface. This structure passes through regulating part body and through-hole cooperation, realizes regulating part and case rotatable sliding fit, and simple structure is reasonable.
6. The end surface of the valve core body facing to the water inlet direction is uniformly provided with a plurality of convex columns extending along the water inlet direction, and the free end of each convex column is provided with a stop block extending inwards along the radial direction. The abutting stop block is arranged on the convex column, so that materials can be saved, and meanwhile, the convex column can guide the adjusting piece, and the adjusting piece is prevented from inclining in the moving process.
7. The outer wall of the valve core body is provided with a clamping protrusion extending outwards along the radial direction, and when the flow limiting valve is arranged in the flow channel, the clamping protrusion is in interference sealing fit with the inner wall of the flow channel, so that the flow limiting valve is arranged in the flow channel.
8. The convex disc is provided with an elastic sealing surface facing the water passing surface, and when the plugging part of the convex disc props against the water passing surface, the elastic sealing surface can increase the sealing performance between the convex disc and the water passing surface.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an exploded perspective view of a constrictor valve according to a first embodiment;
FIG. 2 is a schematic perspective view of an adjusting member according to an embodiment;
FIG. 3 is a schematic perspective view of a valve core according to a first embodiment;
FIG. 4 is a schematic cross-sectional view of a valve cartridge according to one embodiment;
FIG. 5 is a schematic cross-sectional view of a constrictor valve according to an embodiment one;
FIG. 6 is a schematic sectional view showing a disassembled state of a flow limiting valve in the first embodiment;
FIG. 7 is a schematic cross-sectional view of a first state in which a constrictor valve is used in accordance with an embodiment one;
FIG. 8 is a schematic cross-sectional view of a second state in which a constrictor valve is used in accordance with an embodiment one;
FIG. 9 is a schematic cross-sectional view of a preferred installation of a constrictor valve according to one embodiment;
FIG. 10 is a schematic cross-sectional view of a first state in which a flow restriction valve is used in the second embodiment;
fig. 11 is a schematic cross-sectional view of a second state in which a constrictor valve is used in accordance with a second embodiment.
Description of the main reference numerals:
an adjusting member 1; an adjuster body 11; the first projection 111; a groove 1111; an elastic hook 112; a convex disc 12; a first annular wall 121; a sealing portion 122; a card slot 123;
a valve core 2; a spool body 21; a water inlet 211; a water outlet 212; a convex ring 213; a boss 214; a stopper 215; a second projection 216; a snap projection 217; a grid plate 22; a water passing port 221; a second annular wall 23; a through hole 231; a water passing surface 232; a ring groove 24; a third annular wall 25; a through hole 251; a limiting surface 252; a connecting plate 26; a water passing compartment 27;
an elastic member 3;
an elastic orifice 4;
a silica gel sleeve 5;
a flow limiting valve 100;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.
In the claims, the specification and the drawings, unless otherwise expressly limited, all directional or positional relationships, such as those using the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like, are based on the directional or positional relationships illustrated in the drawings and are for the purpose of convenience in describing the invention and simplifying the description, but do not indicate or imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the scope of the invention.
In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.
In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.
The first embodiment is as follows:
referring to fig. 1, fig. 1 shows a flow restriction valve 100 including an adjustment member 1, a valve spool 2, an elastic member 3, and an elastic orifice member 4.
Specifically, as shown in fig. 2, the adjusting member 1 includes an adjusting member body 11 and a convex disc 12 extending radially outward from an outer wall of the adjusting member body 11. The adjusting body 11 is a shaft rod, one end of which is provided with a first protrusion 111 arranged close to the water inlet direction, and the other end is provided with an elastic hook 112. The first protrusion 111 is provided with a linear groove 1111 having an opening facing the water inlet direction. A first annular wall 121 extending along the water inlet direction is arranged on the surface of the convex disc 12 departing from the water inlet direction, and a blocking part 122 facing the water passing surface 232 is formed on the surface of the convex disc 12 positioned in the first annular wall 121; the circumference of the protruding disk 12 is provided with a plurality of yielding grooves 123, and in this embodiment, the circumference of the protruding disk 12 is provided with 4 yielding grooves 123.
As shown in fig. 3 and 4, the valve body 2 includes a valve body 21, a grid plate 22, a second annular wall 23, and an abutting portion, which are integrally connected to each other. The valve core body 21 is a cylindrical tubular structure, and an opening facing the water inlet direction forms a water inlet 211, and an opening facing away from the water inlet direction forms a water outlet 212. A protruding ring 213 is protruded toward the axial center direction on the inner wall of the valve body 21. The end surface of the convex ring 213 facing the water inlet direction is uniformly provided with a plurality of convex columns 214 extending along the direction deviating from the water inlet direction, the free end of each convex column 214 is provided with a stop block 215 extending along the radial direction toward the axial center direction, the stop block 215 is matched with the abdicating groove 123, and four convex columns 214 are uniformly distributed in the present embodiment. A plurality of second protrusions 216 are circumferentially spaced on the inner wall of the protruding ring 213. An annular clamping protrusion 217 extending outwards along the radial direction is arranged on the outer wall of one end of the valve core body 21 facing the water inlet direction along the circumferential direction.
As shown in fig. 3 and 4, the grid plate 22 is annular, and a plurality of water passing holes 221 are formed in the circumferential direction; the grid plate 22 and the end face of the convex ring 213 departing from the water inlet direction are arranged oppositely, the second annular wall 23 is arranged at the central position of the inner cavity of the valve core body 21, part of the second annular wall protrudes out of the convex ring 213 along the water inlet direction, and the outer wall of the second annular wall is fixedly connected with the inner wall of the valve core body 21 through the grid plate 22. The second annular wall 23 is provided with a through hole 231, the through hole 231 forms a bypass flow channel, the end surface of the through hole 231 facing the water inlet direction forms a water passing surface 232, and the second annular wall 23 forms the annular wall. A normally open flow passage is formed between the inner wall of the spool body 21 and the outer wall of the second annular wall 23. The inner wall of the convex ring 213, the outer wall of the second ring wall 23 and the grid plate 22 together enclose to form a ring groove 24 with an opening facing the water inlet direction. The embodiment adds the bypass flow channel with the water passing surface 232 facing the water inlet direction on the basis of only one normally open flow channel in the prior art, so that the flow limiting valve 100 can obtain extra flow at low pressure.
As shown in fig. 3 and 4, the abutment comprises a third annular wall 25 and a plurality of webs 26. The third annular wall 25 is arranged at the center of one end of the through hole 231 deviating from the water inlet direction, a through hole 251 is formed in the inner cavity of the third annular wall 25, and a limiting surface 252 is formed on the end surface deviating from the water inlet direction. One end of each connecting plate 26 is uniformly distributed on the outer wall of the third annular wall 25 along the circumferential direction, and the other end extends to the inner wall of the second annular wall 23, so that the third annular wall 25 is fixedly connected with the second annular wall 23. In this embodiment, three connecting plates 26 are provided, and the outer wall of the third annular wall 25, the inner wall of the second annular wall 23 and each connecting plate 26 together enclose three water passing spaces 27.
As shown in fig. 1 and fig. 5, the elastic element 3 is sleeved on the adjusting element body 11, one end of the elastic element abuts against the end surface of the third annular wall 25 close to the water inlet direction, and the other end abuts against the blocking portion 122 of the convex disc 12, so that the elastic hook 112 abuts against the limiting surface 252 due to the elastic force of the elastic element 3 after passing through the through hole 251. In the uncompressed state of the elastic member 3, the blocking portion 122 is away from the water passing surface 232.
As shown in fig. 1 and 5, the elastic orifice member 4 has a ring-shaped structure; the elastic throttling element 4 is located in the ring groove 24, sleeved outside the second ring wall 23 and located on the grid plate 22.
As shown in fig. 5, in this embodiment, when installing, the elastic throttling element 4 is firstly sleeved outside the second annular wall 23, and then the elastic throttling element 4 is pressed into the annular groove 24, so that the elastic throttling element 4 is located on the grid plate 22, and each second protrusion 216 and the elastic throttling element 4 together enclose to form a water passing gap.
Then, the elastic element 3 is sleeved on the adjusting element body 11, so that one end of the elastic element abuts against the blocking part 122 of the convex disc 12; then, the receding groove 123 on the convex disc 12 is aligned with the abutting block 215 to enable the convex disc 12 and the abutting block 215 to form sliding fit, the elastic hook 112 of the adjusting piece 1 extends into the through hole 251 of the valve core 2, the adjusting piece 1 and the through hole 251 are rotatably and slidably matched, the elastic hook 112 is enabled to abut against the limiting surface 252, and the adjusting piece 1 is prevented from being separated from the valve core body 21 by the elastic force of the elastic piece 3. The adjusting piece body 11 is matched with the abutting part through hole 251, the rotatable sliding fit of the adjusting piece 1 and the valve core 2 is realized, and the structure is simple. At this time, the other end of the elastic element 3 abuts against the end face of the abutting part third annular wall 25 towards the water inlet direction, and the acting face of the elastic element 3 is formed in the valve core 2 by arranging the abutting part, so that the structural design is reasonable. The first annular wall 121 of the convex disc 12 is positioned between the inner wall of the valve core body 21 and the outer wall of the second annular wall 23. An interval for communicating the water inlet 211 with a normally open flow passage is formed between the outer edge of the convex disc 12 and the inner wall of the valve core body 21. The convex column 214 is located outside the circumference of the convex disc 12, which not only saves materials, but also guides the adjusting piece 1, and prevents the adjusting piece 1 from tilting during movement. When the flow limiting valve 100 is used and the elastic throttling element 4 moves in the direction away from the water inlet direction to be separated from the annular groove 24, the free end of the first annular wall 121 can press the elastic throttling element 4 into the annular groove 24 in the moving process.
In the disassembly process of the present embodiment, as shown in fig. 6, the adjusting element 1 is first pressed and rotated, so that the receding groove 123 on the convex disc 12 is far away from the abutting block 215, and the surface of the convex disc 12 facing the water inlet direction abuts against the surface of the abutting block 215 facing away from the water inlet direction under the action of the elastic element 3; at this time, the elastic hook 112 moves towards the water inlet direction and is away from the limiting surface 252, so as to prevent the elastic hook 112 from being damaged during disassembly. The first protrusion 111 is clamped by hand or by a tool or the groove 1111 of the first protrusion 111 is acted on by a tool, and the flow restriction valve 100 can be integrally detached from the flow passage 200 by pulling the first protrusion 111 due to the abutment of the cam 12 and the abutting block 215.
In use, as shown in fig. 7, the flow limiting valve 100 is first installed in the flow passage 200, and the flow limiting valve 100 is fixed in the flow passage 200 by interference sealing fit between the clamping protrusion 217 on the valve core body 21 and the inner wall of the flow passage 200, where the first protrusion 111 of the flow limiting valve 100 faces the water inlet end of the flow passage 200. Because a gap for communicating the water inlet 211 with the normally open flow channel is left between the outer edge of the convex disc 12 and the inner wall of the valve core body 21, no matter the convex disc 12 is far away from or close to the water passing surface 232 or the blocking part 122 of the convex disc 12 props against the water passing surface 232, water flow can always flow into the normally open flow channel 200 from the water inlet 211.
As shown in fig. 7, when the water flow is small and the generated water pressure is small, the elastic force of the elastic member 3 on the adjusting member 1 is greater than the pressure of the water pressure, the elastic force makes the convex disc 12 away from the water passing surface 232, a water passing gap is formed between the convex disc and the water passing surface 232, at this time, the water flow can flow into the normally open flow channel 200 from the water inlet 211, and flows to the water outlet 212 through the water passing gap formed between the elastic throttling member 4 and each second protrusion 216 and the water passing port 221 on the grid plate 22, and the reduction amount of the water passing gap formed between the elastic throttling member 4 and each second protrusion 216 is small because the deformation amount of the elastic throttling member 4 is small due to the small water pressure; water flow can also flow from the inlet 211 to the bypass flow channel 200, through the water flow space 27 to the outlet 212; because the water flow can flow to the water outlet from the two water paths at low pressure, the high flow rate is realized at low pressure.
As shown in fig. 8, when the water flow is large and the generated water pressure is large, the water flow flows into the normally open flow channel from the water inlet 211, passes through the water passing gap formed between the elastic throttling element 4 and each second protrusion 216 and the water passing port 221 on the grid plate 22, and flows to the water outlet 212, and because the water pressure is large, the deformation amount of the elastic throttling element 4 is large, the reduction amount of the water passing gap formed between the elastic throttling element 4 and each second protrusion 216 is large, and the water flow is limited. Because the water pressure is large, the elastic force of the elastic part 3 borne by the adjusting part 1 is smaller than the pressure borne by the water pressure, and the pressure borne by the water pressure enables the convex disc 12 to be close to the water passing surface 232 or enables the plugging part 122 of the convex disc 12 to prop against the water passing surface 232, so that the water passing gap between the convex disc 12 and the water passing surface 232 is reduced, or the water passing surface 232 is plugged, and the flow of water flowing to the water outlet 212 through the bypass flow channel is reduced or the water is limited to only flow to the water outlet 212 from the normally open flow channel, so as to limit the flow of the water.
Preferably, as shown in fig. 9, in this embodiment, a radial protrusion 201 may be disposed radially inward on an inner wall of the flow channel 200, and an end of the valve core body 21 facing away from the water inlet direction forms an abutting surface; when the abutting surface abuts against the radial protrusion 201 when the flow limiting valve 100 is installed in the flow passage 200, the flow limiting valve 100 is installed in place, and the stability of the flow limiting valve in use can be increased.
Example two:
as shown in fig. 10 and fig. 11, the flow limiting valve 100 in this embodiment is different from embodiment 2 in that a silicone sleeve 5 is sleeved on a surface of the convex disc 12 provided with the first annular wall 121 to form an elastic sealing surface facing the water passing surface 232, so as to increase the sealing performance of the blocking portion 122 of the convex disc 12 when blocking the water passing surface 232.
In the installation of the embodiment, one step needs to be added to the installation step of the embodiment one, the silica gel sleeve 5 is sleeved on the convex disc 12 of the adjusting piece 1, and the rest steps are the same as those of the embodiment one; the using method of the present embodiment is completely the same as that of the first embodiment, so that all the beneficial effects of the first embodiment are achieved, and the sealing performance of the blocking portion 122 of the convex disc 12 for blocking the water passing surface 232 is also increased by the silicone sleeve 5.
The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention. Modifications, equivalents and other improvements which may be made to the embodiments of the invention or to some of the technical features thereof by a person of ordinary skill in the art through logical analysis, reasoning or limited experimentation in light of the above teachings of the invention or the above embodiments are intended to be included within the scope of the invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023038915.1U CN214466387U (en) | 2020-12-16 | 2020-12-16 | Flow limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023038915.1U CN214466387U (en) | 2020-12-16 | 2020-12-16 | Flow limiting valve |
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| Publication Number | Publication Date |
|---|---|
| CN214466387U true CN214466387U (en) | 2021-10-22 |
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|---|---|---|---|
| CN202023038915.1U Active CN214466387U (en) | 2020-12-16 | 2020-12-16 | Flow limiting valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114233908A (en) * | 2021-12-10 | 2022-03-25 | 杭州创立钢结构工程有限公司 | Constant flow device, water outlet terminal, bubbler and adapter |
| CN116538331A (en) * | 2023-06-19 | 2023-08-04 | 宁波方太厨具有限公司 | Antifreezing device and water heater using same |
| CN119641959A (en) * | 2025-01-07 | 2025-03-18 | 广州穗高阀门科技有限公司 | Comprehensive slow-closing check valve |
| CN116538331B (en) * | 2023-06-19 | 2026-02-17 | 宁波方太厨具有限公司 | Antifreeze device and water heater using the antifreeze device |
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2020
- 2020-12-16 CN CN202023038915.1U patent/CN214466387U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233908A (en) * | 2021-12-10 | 2022-03-25 | 杭州创立钢结构工程有限公司 | Constant flow device, water outlet terminal, bubbler and adapter |
| CN116538331A (en) * | 2023-06-19 | 2023-08-04 | 宁波方太厨具有限公司 | Antifreezing device and water heater using same |
| CN116538331B (en) * | 2023-06-19 | 2026-02-17 | 宁波方太厨具有限公司 | Antifreeze device and water heater using the antifreeze device |
| CN119641959A (en) * | 2025-01-07 | 2025-03-18 | 广州穗高阀门科技有限公司 | Comprehensive slow-closing check valve |
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Address after: No.253, South High Tech Park Road, Luncang Town, Nan'an City, Quanzhou City, Fujian Province Patentee after: Fujian Demao Sanitary Ware Technology Co.,Ltd. Country or region after: China Address before: No. 253 South Road, High tech Park, Luncang Town, Nan'an City, Quanzhou City, Fujian Province Patentee before: FUJIAN XIHE SANITARY WARE TECHNOLOGY Co.,Ltd. Country or region before: China |
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