CN217951348U - Constant current device and bathroom equipment - Google Patents

Abstract

The utility model relates to a constant current device and sanitary bath equipment, constant current device includes: throttling component, overflow subassembly, first drainage tube and second drainage tube. The throttling component is provided with an inner flow passage, a first port and a second port. The first port communicates to the second port through an orifice in the inner flow passage. Referring to fig. 3, the overflow assembly is provided with an overflow chamber and a feed chamber, and a movable separation boundary is formed between the overflow chamber and the feed chamber. The first drainage tube is detachably connected between the first port and the input port of the overflow cavity, and the second drainage tube is detachably connected between the second port and the feed-in port of the feed-in cavity. Because the throttling component and the overflow component are detachably butted through the first drainage tube and the second drainage tube, the throttling component with different throttling hole adjusting ranges and the overflow component with different overflow flow adjusting ranges are combined conveniently, the application occasions of the constant-current device are conveniently improved, and the throttling component and the overflow component are prevented from being stocked and piled simultaneously.

Description

Constant current device and bathroom equipment

Technical Field

The utility model relates to a bathroom technical field especially relates to a constant current device and bathroom equipment.

Background

The sanitary ware is a product applied to a toilet or a bathroom, and can be a closestool, a squatting pan, a hand basin or a bathtub and the like. In order to wash articles or parts of a user's body or clean sanitary equipment, corresponding waterways are generally provided in the sanitary equipment to control the flow of water and perform corresponding washing or cleaning functions.

The constant flow control structure is used for overflowing the redundant water in the waterway before the water flow is output, and the flow output from the waterway is maintained at a preset output value. Because the constant-current control structure needs to give consideration to both the output flow range and the overflow flow range, when different types of sanitary equipment have large difference in required values of the output flow and the overflow flow, the constant-current control structure with a specific specification is difficult to adapt to different application occasions. When the prepared material of the constant-current control structure with a single specification is excessive, the whole constant-current control structure is accumulated, and a large material flow problem is caused.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a constant current device and a bathroom facility, which solve the problem that when the stock of a constant current control structure of a single specification is excessive, the entire constant current control structure is stacked.

A constant current device comprising:

the throttling component is provided with an inner flow passage, a first port and a second port; the first port is communicated to the second port through an orifice in the inner flow passage;

the overflow assembly is provided with an overflow cavity and a feed cavity; a movable separation boundary is formed between the overflow cavity and the feed cavity; the opening degree of the output port of the overflow cavity is limited by the position of the movable separation boundary;

the first drainage tube is detachably connected between the first port and the input port of the overflow cavity; and

and the second drainage tube is detachably connected between the second port and the feed-in port of the feed-in cavity.

According to the constant flow device, after water flows into the inner flow channel of the throttling assembly, a part of water flows into the overflow cavity through the first port and the first drainage tube through the throttling hole. And in addition, a part of water flows into the feed cavity through the second port and the second drainage pipe after passing through the throttling hole. The water in the overflow cavity and the water in the feed cavity both generate pressure action on the movable separation boundary, so that the movable separation boundary generates position change under the action of medium pressure borne by two sides. Because the opening of the output port of the overflow cavity is influenced by the position of the movable separation boundary, the overflow flow of the overflow cavity can be changed when the pressure difference between the overflow cavity and the feed cavity is changed. The change of the overflow flow of the overflow cavity can adjust the pressure difference between the front and the rear of the throttling hole, so that the flow which passes through the throttling hole and is output by the inner flow passage is kept stable and is only influenced by the adjustment of the size of the throttling hole. Because the throttling component and the overflow component are detachably butted through the first drainage tube and the second drainage tube, it is convenient to combine a throttling assembly having a different throttling orifice adjustment range with a spill assembly having a different spill flow adjustment range, the application occasion of the constant-current device is conveniently improved, and the simultaneous stock accumulation of the throttling assembly and the overflow assembly is avoided.

In one embodiment, the first drain tube and the second drain tube are flexible.

In one embodiment, the throttling assembly comprises a throttling valve, a third drainage pipe and a first flow dividing part; the first port and the orifice are provided in the throttle valve; the second port is disposed on the first flow-dividing member; the third drainage tube is detachably connected to the throttle valve and the first flow dividing piece respectively.

In one embodiment, the third drain tube is flexible.

In one embodiment, the throttle valve comprises a draft tube, a regulating unit and a second flow divider; the throttle hole is arranged on the adjusting unit; the first port is arranged on the second flow dividing piece; the adjusting unit is connected between the draft tube and the second flow dividing piece.

In one embodiment, the overflow assembly is provided with a first convex cylinder part which is communicated with the input port of the overflow cavity; the first drainage tube is sleeved on the first convex cylinder part.

In one embodiment, the overflow assembly is provided with a second convex cylinder part which is communicated with the output port of the overflow cavity; the second convex cylinder part is arranged on one side of the overflow assembly, which is back to the first convex cylinder part.

In one embodiment, an annular groove is formed on the outer side of the first convex barrel part; and/or an annular groove is formed on the outer side of the second convex cylinder part.

In one embodiment, the overflow assembly is provided with a third boss part, and the third boss part is communicated with a feed-in port of the feed-in cavity; the second drainage tube is sleeved on the third convex cylinder part.

A bathroom equipment comprises a constant current device.

Drawings

Fig. 1 is a schematic perspective view of a constant current device according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of the constant current device shown in fig. 1 at another angle;

FIG. 3 is a partial schematic view of the constant flow device of FIG. 2, with arrows indicating the direction of water flow;

fig. 4 is an enlarged view of the constant current device shown in fig. 3 at a;

fig. 5 is an enlarged view of the constant current device shown in fig. 3 at B;

fig. 6 is an exploded schematic view of the constant current device shown in fig. 2.

Reference numerals: 100. a constant current device; 20. a throttle assembly; 201. an inner flow passage; 22. a throttle valve; 220. a first port; 221. a draft tube; 222. an adjustment unit; 224. a collapsible tube; 225. an orifice; 225. a clamp member; 226. an adjustment member; 223. a second flow divider; 227. a main port; 228. a second diversion port; 23. a third drainage tube; 24. a first flow dividing member; 241. a second port; 242. a first access port; 243. a first diversion port; 30. an overflow assembly; 31. a housing; 34. a shell cover; 341. a flow-feeding cavity; 342. a feed-in port; 343. a third boss portion; 35. a shell body; 351. an overflow chamber; 352. an input port; 353. an output port; 354. a partition wall; 355. a valve port; 356. a first boss portion; 357. an annular groove; 358. a second boss portion; 36. a cover plate; 361. a limiting cylinder; 32. a partition unit; 321. separating the membrane; 322. pressing a plate; 33. a valve core; 331. a narrowing portion; 37. an elastic member; 40. a first draft tube; 50. a second draft tube.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical solution provided by the embodiments of the present invention is described below with reference to the accompanying drawings.

The utility model provides a bathroom equipment.

In some embodiments, the sanitary fixture is provided with a spray waterway for directing a flow of water to flow. In one embodiment, the spray waterway is capable of directing a stream of water to the privacy of a sanitary user. In another embodiment, the sanitary equipment may be provided with a liquid pool, and the spray water path is used for guiding water flow to the liquid pool so as to wet the wall surface of the liquid pool or clean dirt on the wall surface of the liquid pool.

In some embodiments, the spray rinsing circuit may be divided into a front section, a middle section and a rear section which are connected in sequence. When flowing in the spray washing water path, the water flow passes through the front section, the middle section and the rear section in sequence.

In some embodiments, as shown in fig. 1, the sanitary fixture includes a constant flow device 100, and the constant flow device 100 is used to form a boundary of a middle section of a spray water path and is capable of controlling an output flow of the spray water path. Further, the constant flow device 100 keeps the output flow rate constant by overflowing the surplus water flowing into the spray water path.

In some embodiments, the sanitary fixture is provided with a reservoir in which water overflowing from the constant flow device 100 may be stored. Furthermore, the stored water in the liquid storage container can be sent into the spraying water channel again or flow into the liquid pool through other water channels to clean or wash the liquid pool.

In some embodiments, the sanitary fixture includes a body provided with a liquid bath. In one embodiment, the sanitary installation further comprises a spray gun module at which an end of the rear section of the spray rinsing waterway is formed. In one embodiment, the sanitary fixture may be a toilet. In another embodiment, the sanitary equipment may be any combination structure at least including a squatting pan and a water storage device.

Referring to fig. 1 to 6, the present invention further provides a constant current device 100.

In some embodiments, as shown in connection with fig. 1, constant current device 100 includes: a throttling assembly 20, an overflow assembly 30, a first draft tube 40 and a second draft tube 50. The throttling assembly 20 has an inner flow passage 201, a first port 220 and a second port 241. The first port 220 communicates to the second port 241 through an orifice 225 in the inner fluid passage 201. Referring to fig. 3, the overflow assembly 30 is provided with an overflow chamber 351 and a feed chamber 341, and the overflow assembly 30 forms a movable separation boundary between the overflow chamber 351 and the feed chamber 341. The opening of the outlet 353 of the overflow chamber 351 is limited by the position of the movable partition boundary. The first drain tube 40 is detachably connected between the first port 220 and the input port 352 of the overflow chamber 351, and the second drain tube 50 is detachably connected between the second port 241 and the feed port 342 of the feed chamber 341.

After the water flows into the inner flow passage 201 of the throttling assembly 20, a portion of the water flows into the overflow chamber 351 through the first port 220 and the first drain tube 40 via the throttling hole 225. Another portion of the water flows through the second port 241 and the second drain tube 50 into the feed chamber 341 after passing through the orifice 225. The water in the overflow cavity 351 and the water in the feed cavity 341 both generate pressure on the movable separation boundary, so that the movable separation boundary generates position change under the action of medium pressure borne by two sides. Since the opening degree of the output port 353 of the overflow chamber 351 is affected by the position of the movable partition boundary, the overflow flow rate of the overflow chamber 351 can be changed when the pressure difference between the overflow chamber 351 and the feed chamber 341 varies. The change in the spill flow rate from the spill cavity 351 can adjust the pressure differential across the orifice 225, such that the flow rate through the orifice 225 and out of the inner flow passage 201 remains constant, subject only to the adjustment of the size of the orifice 225. Because the throttling component 20 and the overflow component 30 are detachably butted through the first drainage tube 40 and the second drainage tube 50, the throttling component 20 with different regulating ranges of the throttling holes 225 and the overflow component 30 with different regulating ranges of the overflow flow can be conveniently combined, the applicable occasions of the constant flow device 100 can be conveniently improved, and the simultaneous stock accumulation of the throttling component 20 and the overflow component 30 can be avoided.

Further, the first draft tube 40 is detachably connected between the first port 220 and the input 352 of the overflow chamber 351, at least it can be understood that one end of the first draft tube 40 is detachably connected to the first port 220 and the other end is detachably connected to the input 352 of the overflow chamber 351. Alternatively, one of the first port 220 and the input port 352 of the overflow chamber 351 is fixedly connected to one end of the first draft tube 40, and the other of the first port 220 and the input port 352 of the overflow chamber 351 is detachably connected to the other end of the first draft tube 40.

Further, the second drain tube 50 is detachably connected between the second port 241 and the feeding port 342 of the feeding chamber 341, at least it can be understood that one end of the second drain tube 50 is detachably connected to the second port 241, and the other end is detachably connected to the feeding port 342 of the feeding chamber 341. Alternatively, one of the second port 241 and the feeding port 342 of the feeding chamber 341 is fixedly connected to one end of the second drain tube 50, and the other of the second port 241 and the feeding port 342 of the feeding chamber 341 is detachably connected to the other end of the second drain tube 50.

In some embodiments, the first 40 and second 50 drains are flexible. Specifically, since the first draft tube 40 and the second draft tube 50 are butted between the overflow assembly 30 and the throttling assembly 20, in the case that the first draft tube 40 and the second draft tube 50 have flexibility, the shapes of the first draft tube 40 and the second draft tube 50 can be directly adapted and adjusted according to the relative positional relationship of the overflow assembly 30 and the throttling assembly 20. Therefore, the need of replacing the first draft tube 40 or the second draft tube 50 with different shapes is avoided, and only enough length is reserved for the first draft tube 40 or the second draft tube 50, so that the constant flow device 100 can flexibly adapt to the limited accommodating space in the sanitary ware.

In some embodiments, as shown in fig. 3 and 6, the overflow assembly 30 includes a first protruding cylinder portion 356, and the first protruding cylinder portion 356 is connected to the input port 352 of the overflow chamber 351. The first draft tube 40 is sleeved on the first boss portion 356. Specifically, by sleeving the first draft tube 40 to the first boss portion 356, the docking between the first draft tube 40 and the overflow chamber 351 can be conveniently accomplished, and at the same time, the leakage of the water flow can be advantageously prevented. In one embodiment, the first drainage tube 40 has elasticity, and the inner diameter of the first drainage tube 40 is smaller than the outer diameter of the first convex cylinder portion 356 when the first drainage tube 40 is not elastically deformed, so that the first drainage tube 40 can be kept in contact with the outer side of the first convex cylinder portion 356 by being sleeved on the first convex cylinder portion 356 after the first drainage tube 40 is appropriately deformed, and the water leakage can be avoided.

In some embodiments, as shown in fig. 2 and 3, the overflow assembly 30 includes a second protruding cylinder portion 358, and the second protruding cylinder portion 358 is connected to the output aperture 353 of the overflow chamber 351. The second boss portion 358 is disposed on a side of the relief assembly 30 opposite the side on which the first boss portion 356 is disposed. Specifically, after the water in the overflow chamber 351 exits the overflow chamber 351 through the outlet 353 of the overflow chamber 351, the water is guided by the second boss portion 358 to flow out of the overflow assembly 30. Further, the second barrel portion 358 is butted to an auxiliary pipe body in the sanitary ware. In one embodiment, the water flow exiting the second boss portion 358 flows into a reservoir inside or outside the sanitary fitting as guided by the auxiliary tube. Because the first cam portion 356 and the second cam portion 358 are respectively disposed on opposite sides of the overflow assembly 30, the first cam portion 356 and the second cam portion 358 can be prevented from being distributed too densely, and the coupling process between the first cam portion 356 and the first drainage tube 40 or the coupling process between the second cam portion 358 and the auxiliary tube can be conveniently performed.

In one embodiment, as shown in connection with FIG. 6, an annular groove 357 is provided on the outside of the first boss portion 356. Specifically, the annular groove 357 is circumferentially disposed around the first boss portion 356. After one end of the first drainage tube 40 is sleeved on the first convex cylinder portion 356, the lantern ring is sleeved on the outer side of the position, corresponding to the annular groove 357, of the first drainage tube 40, so that a locking effect can be generated on the relative position between the first convex cylinder portion 356 and the first drainage tube 40, and the first drainage tube 40 is prevented from being loosened from the first convex cylinder portion 356.

In one embodiment, as shown in connection with FIG. 6, an annular groove 357 is provided on the outside of the second boss portion 358. Specifically, the annular groove 357 is disposed circumferentially around the second boss portion 358. After one end of the second draft tube 50 is sleeved on the second convex cylinder portion 358, the lantern ring is sleeved on the outer side of the position of the second draft tube 50 corresponding to the annular groove 357, so that a locking effect can be generated on the relative position between the second convex cylinder portion 358 and the second draft tube 50, and the second draft tube 50 is prevented from being loosened from the second convex cylinder portion 358.

In some embodiments, as shown in fig. 3 and fig. 6, the overflow assembly 30 is provided with a third convex cylinder portion 343, and the third convex cylinder portion 343 is communicated with the feeding port 342 of the feeding cavity 341. The second drainage tube 50 is sleeved on the third boss portion 343. Specifically, the second drain tube 50 is sleeved to the third boss portion 343, so that the docking between the second drain tube 50 and the feeding chamber 341 can be conveniently completed, and simultaneously, the leakage of water flow can be favorably prevented. Further, the lengths of the first boss portion 356, the second boss portion 358 and the third boss portion 343 are 5mm to 30mm, so that it is possible to prevent the first boss portion 356 and the second boss portion 358 from being too short and from being unstably coupled to the first draft tube 40 or the second draft tube 50. Meanwhile, the constant current device 100 can be prevented from occupying a large space due to the fact that the first cam portion 356, the second cam portion 358 and the third cam portion 343 are too long. In one embodiment, at least one of the first, second, and third barrel portions 356, 358, 343 is 5mm, 8mm, 10mm, 12.9mm, 14mm, 17mm, 20mm, 25mm, or 30mm in length.

In some embodiments, as shown in fig. 3 and 4, the overflow assembly 30 includes a housing 31, a separation unit 32, and a valve core 33, where the housing 31 includes a housing cover 34, a housing body 35, and a cover plate 36. The partition unit 32 is used to form an active partition boundary. Specifically, the partition unit 32 covers one of the openings of the housing body 35, and cooperates with the housing body 35 to form the overflow chamber 351. The valve body 33 is connected to the partition unit 32 and forms an output port 353 of the relief chamber 351 in cooperation with the housing body 35. The partition unit 32 also covers one of the openings of the housing cover 34, and forms a feeding chamber 341 in cooperation with the housing cover 34. Specifically, the first boss portion 356 and the third boss portion 343 are provided on the housing body 35, and the second boss portion 358 is provided on the housing cover 34.

In some embodiments, as shown in fig. 3 and 4 in combination, the spool 33 is provided with a narrowed portion 331, and an average outer diameter of the narrowed portion 331 is reduced in a reference direction of the spool 33. In one embodiment, the reference direction of the spool 33 is arranged parallel to the direction of movement of the spool 33 relative to the housing 31, and the reference direction is directed away from the partition unit 32. A partition wall 354 is provided in the housing 35, and the partition wall 354 is provided with a valve port 355. The constriction 331 cooperates with the edge of the valve port 355 to form the outlet 353 of the overflow chamber 351. Since the narrowed portion 331 is movably disposed with respect to the valve port 355, the cross-sectional area of the output opening 353 of the overflow chamber 351 is different when the narrowed portion 331 is located at different positions with respect to the valve port 355, and thus the opening degree is different.

In some embodiments, as shown in fig. 3 and 4, the cover plate 36 is provided with a limiting cylinder 361, and the limiting cylinder 361 is used for accommodating one end of the valve core 33 away from the partition unit 32 and limiting the moving direction of the valve core 33. The cover plate 36 also serves to form part of the boundary of the overflow chamber 351.

Specifically, as shown in fig. 3 and 4, the overflow assembly 30 further includes an elastic member 37, and the elastic member 37 is connected to the partition unit 32. The resilient member 37 is capable of at least partially equalizing the pressure of the medium in the overflow chamber 351 beyond the feed chamber 341. Specifically, the medium pressure is a pressure generated by the water body in the feed chamber 341 or the overflow chamber 351 under the pressure on the separation unit 32. Since the elastic member 37 generates different elastic forces by different deformation amplitudes, the elastic member 37 has different deformation amplitudes when the magnitude of the pressure difference between the media on both sides of the partition unit 32 is different. Accordingly, the partition unit 32 is in different positions with respect to the housing 31. The valve body 33 is connected to the partition unit 32, moves relative to the valve port 355 with the partition unit 32, and forms a different engagement state with the valve port 355, thereby adjusting the opening degree of the output port 353 of the overflow chamber 351. More specifically, the elastic member 37 is a compression spring. Further, for different sized relief assemblies 30, different spring rates of spring 37 may be used. Alternatively, for overflow assemblies 30 of different sizes, valve ports 355 of different sizes or constrictions 331 of different magnitudes of constrictions may be provided. The overflow assemblies 30 of different specifications are used in different application occasions, otherwise, when the actual overflow flow is larger than the maximum overflow flow of the overflow assembly 30, the water flow which fails to overflow in time passes through the throttle hole 225, so that the output flow of the spray washing water circuit cannot be maintained stable.

In some embodiments, as shown in connection with fig. 4, the separation unit 32 comprises a separation membrane 321, the separation membrane 321 being flexible and separating the overflow chamber 351 from the body of water between the feed chambers 341. The separation unit 32 further includes a pressure plate 322, and the pressure plate 322 is disposed on at least one side of the separation membrane 321, so that the volume change of the overflow chamber 351 or the feed chamber 341 can be approximately linearly related to the moving distance of the valve element 33, thereby precisely adjusting the opening degree of the output port 353 of the overflow chamber 351. In one embodiment, the pressing plates 322 may be respectively supported at both sides of the separation membrane 321.

In some embodiments, as shown in fig. 3, 5 and 6, the throttling assembly 20 includes a throttling valve 22, a third draft tube 23 and a first flow dividing member 24. The first port 220 and the orifice 225 are provided in the throttle valve 22. The second port 241 is provided to the first flow dividing member 24. The third draft tube 23 is detachably connected to the throttle valve 22 and the first diverging part 24, respectively. In one embodiment, the first and second drains 40 and 50 are made of a material having a certain rigidity in order to ensure corrosion resistance or leakage resistance, so that the shapes of the first and second drains 40 and 50 are not easily adjusted. Meanwhile, when the overflow assemblies 30 with different specifications have larger size differences, the relative positions of the first port 220 and the second port 241 can be adjusted by replacing the third draft tubes 23 with different shapes, so that the throttling assembly 20 can flexibly adapt to the overflow assemblies 30 with different specifications. In another embodiment, since the third draft tube 23 is detachably connected to the throttle valve 22 and the first shunting member 24 respectively, the throttle valve 22 and the first shunting member 24 are communicated, so that the relative position between the throttle valve 22 and the first shunting member 24 can be conveniently adjusted, and the throttle assembly 20 can be conveniently adapted to the accommodating space in the sanitary ware. Specifically, the first flow divider 24 further has a first inlet 242 and a first outlet 243. After the water flows into the first flow dividing member 24 from the first inlet 242, a part of the water flows into the second draft tube 50 through the second port 241. Another part of the water is discharged from the first diverging port 243 to the rear section of the spray water path. More specifically, one end of the second draft tube 50 is sleeved on the end of the first flow dividing member 24 where the second port 241 is provided.

Further, the third draft tube 23 has flexibility. Specifically, because the structure in the sanitary ware is complicated, when third drainage tube 23 has the flexibility, can conveniently with in the clearance between the device of third drainage tube 23 holding, be favorable to improving the compactness in the sanitary ware. Further, when the first draft tube 40, the second draft tube 50 and the third draft tube 23 have flexibility at the same time, the constant current device 100 can be more flexibly adapted to the accommodating space in the sanitary ware.

In some embodiments, as shown in fig. 3 and 5, the throttle 22 includes a draft tube 221, a regulating unit 222, and a second flow divider 223. The orifice 225 is provided to the adjusting unit 222. The first port 220 is disposed in the second flow diverter 223. The adjusting unit 222 is connected between the draft tube 221 and the second flow dividing member 223. Specifically, the second flow dividing member 223 also has a main port 227 and a second flow dividing port 228. The water flows from the front of the spray water path into the main port 227 of the second flow divider 223. In one embodiment, a portion of the water flow entering the second split component 223 flows into the first draft tube 40 through the first port 220, and another portion flows through the second split port 228 and then passes through the adjusting unit 222 and the draft tube 221 in sequence. Specifically, as shown in fig. 5, the adjustment unit 222 includes a shrinkable tube 224 abutting between the second branch port 228 and the draft tube 221, and the shrinkable tube 224 is deformable by the external pressure to change the size of the inner cross section of the orifice 225. Thereby providing a regulating effect on the amount of flow through orifice 225. Further, the adjusting unit 222 further includes a clamp member 225 sleeved on the shrinkable tube 224 and an adjusting member 226 connected to the clamp member 225. The clamp member 225 is supported against the outer side of the shrinkable tube 224, and the clamp member 225 is C-shaped with a gap between its two ends. The adjustment member 226 is screw-coupled to the clip member 225 to adjust the degree of contraction of the clip member 225. When the clamping member 225 is closed to a greater extent, the clamping member 225 applies a greater pressure to the outside of the shrinkable tube 224, and the shrinkable tube 224 is deformed to a greater convergence, so that the inner cross-section of the orifice 225 is relatively small. When the collar member 225 is closed to a small extent, the inner cross-section of the orifice hole 225 is relatively large. More specifically, the inner cross-section of the orifice 225 is perpendicular to the direction of water flow through the orifice 225.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A constant current device, comprising:

the throttling component is provided with an inner flow passage, a first port and a second port; the first port is communicated to the second port through an orifice in the inner flow passage;

the overflow assembly is provided with an overflow cavity and a feed cavity; a movable separation boundary is formed between the overflow cavity and the feed cavity; the opening degree of the output port of the overflow cavity is limited by the position of the movable separation boundary;

the first drainage tube is detachably connected between the first port and the input port of the overflow cavity; and

and the second drainage tube is detachably connected between the second port and the feed-in port of the feed-in cavity.

2. The constant flow device according to claim 1, wherein the first drain tube and the second drain tube are flexible.

3. The constant flow device according to claim 1, wherein the throttling assembly comprises a throttling valve, a third draft tube and a first flow dividing member; the first port and the orifice are provided in the throttle valve; the second port is arranged on the first flow dividing piece; the third drainage tube is detachably connected to the throttle valve and the first flow dividing piece respectively.

4. The constant flow device of claim 3, wherein the third drain tube is flexible.

5. The constant flow device of claim 3, wherein the throttle valve comprises a draft tube, a regulating unit, and a second shunt; the throttle hole is arranged on the adjusting unit; the first port is arranged on the second flow dividing piece; the adjusting unit is connected between the draft tube and the second flow dividing piece.

6. The constant-flow device according to claim 1, wherein the overflow assembly is provided with a first boss portion, the first boss portion being in communication with the inlet port of the overflow chamber; the first drainage tube is sleeved on the first convex cylinder part.

7. The constant-flow device according to claim 6, wherein the overflow assembly is provided with a second boss portion, and the second boss portion is communicated with the output port of the overflow cavity; the second convex cylinder part is arranged on one side of the overflow assembly, which is back to the first convex cylinder part.

8. The constant current device according to claim 7, wherein an annular groove is provided on an outer side of the first boss portion; and/or an annular groove is formed on the outer side of the second convex cylinder part.

9. The constant-current device according to claim 1, wherein the overflow assembly is provided with a third boss part, and the third boss part is communicated with a feed-in port of the feed-in cavity; the second drainage tube is sleeved on the third convex cylinder part.

10. Sanitary installation, characterized in that it comprises a constant current device according to any of claims 1 to 9.

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