Steady flow valve and water heater system using the same

Abstract

The application discloses a steady flow valve and a water heater system applying the same. The steady flow valve comprises a shell and a throat pipe in the shell. The throat pipe has a fluid passage, and the side wall of one end of the throat pipe is provided with a fluid outlet communicating with the fluid passage. The shell has a first cavity matched with the peripheral surface of the throat pipe, and the wall of the first cavity is provided with a through hole communicating with the outside. The throat pipe is provided with a first elastic member, and the fluid outlet end of the throat pipe is slidably arranged in the first cavity. When the throat pipe moves from a first position to a second position, the overlapping area of the through hole and the fluid outlet gradually decreases, the first elastic member applies a force to the throat pipe to return to the first position. The throat pipe is provided with a positioning member moving with the throat pipe, and the shell is provided with a limiting part. When the throat pipe is in the second position, the limiting part cooperates with the positioning member to prevent the throat pipe from moving to the first position. The steady flow valve and the water heater system applying the same have the advantages of simple structure, reliable locking, convenient control and reset, stable water outlet flow of the water heater, and improved product use experience.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of steady flow valve and the water heater system of application with the steady flow valve. BACKGROUND

[0002] In daily production and life, the flow and pressure of water supply to water users are often unstable, and if the flow or pressure of water supply fluctuates greatly, it will affect the user experience. For water heater users, water flow fluctuation will cause the phenomenon of hot and cold water, excessive fluid pressure may cause parts to crack, and low ambient temperature may cause the back end to crack and continue to water.

[0003] To solve the above problems, a steady flow device can be provided at the water inlet end to ensure stable water supply. However, from the existing technology, the adjusting mechanism in the steady flow device can only move in one direction, and the reset is relatively complex. In addition, the locking in the extreme case is also not reliable, and there are problems such as complex mechanical mechanism, inconvenient processing and assembly, etc. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the defects in the prior art, such as excessive fluid pressure force that may cause parts to crack, low ambient temperature that may cause the back end to crack and continue to water, unreliable locking, and complex structure, etc. A steady flow valve and a water heater system using the same are provided.

[0005] The present application solves the above technical problems by the following technical solutions:

[0006] The present application provides a kind of steady flow valve, including shell and throat pipe, the shell is equipped with the throat pipe, the throat pipe is equipped with fluid passage, the side wall of one end of the throat pipe is equipped with fluid outlet communicated with the fluid passage, the shell has the first cavity matched with the outer surface of the throat pipe, the wall of the first cavity is equipped with through-flow hole communicated with the outside, one end of the throat pipe with the fluid outlet is slid in the first cavity, when the throat pipe moves from the first position to the second position, the overlapping area of the through-flow hole and the fluid outlet gradually decreases;

[0007] The first elastic member is arranged on the throat pipe, and when the throat pipe moves from the first position to the second position, the first elastic member is used to apply force to the throat pipe to return to the first position.

[0008] The throat pipe is provided with a positioning member, and the positioning member moves with the throat pipe. The shell is provided with a limiting portion, and when the throat pipe moves to the second position, the limiting portion cooperates with the positioning member to prevent the throat pipe from moving to the first position.

[0009] In the technical solution, when the flow rate or pressure of the fluid in the fluid passage increases, the fluid pushes the throat pipe to move so that the overlapping area of the through-flow hole on the shell and the fluid outlet on the throat pipe gradually decreases to control the flow rate, and when the flow rate or pressure decreases, the first elastic member pushes the throat pipe to reset so that the overlapping area increases; when the flow rate or pressure of the fluid in the fluid passage increases to a certain extent, the throat pipe moves to a certain position, and the positioning member on the throat pipe cooperates with the limiting part on the shell through the cooperation of the protrusion and the recess to fix the throat pipe to achieve locking, so that the through-flow hole and the fluid outlet do not overlap, and the structure is simple and the locking is reliable.

[0010] Preferably, the shell comprises a second cavity in communication with the first cavity, and the limiting part is a groove arranged in the second cavity.

[0011] In the technical solution, when the positioning member moves to a certain position with the throat pipe and falls into the groove to achieve locking, the locking is stable and reliable.

[0012] Preferably, the positioning member comprises a fixed part, an elastic connecting part and a limiting part, the fixed part is connected to the throat pipe, the limiting part is connected to the fixed part through the elastic connecting part, and the limiting part is arranged to be capable of being clamped into the groove when the throat pipe is located at the second position.

[0013] In the technical solution, the throat pipe is relatively fixed with the fixed part, the limiting part is pressed against the inner wall of the second cavity to cause the elastic connecting part to deform under stress, the throat pipe drives the positioning member to move through the fixed part, the inner wall of the second cavity releases the pressure on the elastic connecting part when the positioning member moves to the second position with the throat pipe, the deformation of the elastic connecting part is released, and the positioning member falls into the groove to achieve locking, so that the locking is stable and the cooperation structure is simple.

[0014] Preferably, the elastic connecting part comprises a first connecting part and a second connecting part, the first connecting part is connected to the fixed part, the second connecting part is connected to the first connecting part, and the second connecting part extends towards the inner wall of the second cavity from the direction of the second position to the first position.

[0015] In the technical solution, when the positioning member moves to the second position with the throat pipe, the shell releases the pressure on the second connecting part, the deformation of the second connecting part is released, and the second connecting part falls into the groove to achieve stable locking through the cooperation of the protrusion and the recess.

[0016] Preferably, the limiting part is a plate-shaped structure, the middle part of the limiting part has a through hole, the limiting part is sleeved on the throat pipe, and the limiting part is away from the first cavity relative to the fixed part.

[0017] In the technical solution, the limiting part is convenient to abut against other structures of the throat pipe and move with the throat pipe, and the through hole is convenient for assembly and reduces the weight of the positioning member.

[0018] Preferably, the steady flow valve further comprises a sleeve, the sleeve being sleeved on the throat pipe, the throat pipe having a first protrusion on one end of the sleeve away from the fluid outlet;

[0019] The outer circumferential surface of the sleeve comprises a first inclined surface, the first inclined surface being located on the side of the sleeve away from the groove, and the first inclined surface being inclined towards the throat pipe from the direction from the first position to the second position;

[0020] The sleeve is arranged to, when moving towards the first cavity under the action of an external force, the first inclined surface abutting against the inner wall of the through hole to make the positioning portion disengage from the groove.

[0021] In the technical solution, when the sleeve moves towards the first cavity under the action of an external force, the inner wall of the through hole abuts against the first inclined surface and moves along the first inclined surface away from the groove, so that the deformation of the elastic connecting portion changes, the positioning portion is disengaged from the groove, and the reset is realized, and the matching structure is relatively simple; meanwhile, the first protrusion limits the movement position of the sleeve, and avoids the sleeve from exceeding the first position.

[0022] Preferably, when the positioning portion disengages from the groove, the through hole has a gap between the inner wall away from the first inclined surface and the sleeve.

[0023] In the technical solution, the above arrangement is adopted, so that when the positioning portion and the first inclined surface continue to slide and match, the inner wall of the through hole away from the first inclined surface can continue to move towards the throat pipe, so that the positioning portion can continue to abut against the inner wall of the second cavity outside the groove under the action of the elastic connecting portion and completely disengage from the groove.

[0024] Preferably, the steady flow valve further comprises an adjusting plug, the adjusting plug extending into the second cavity from the wall of the second cavity, and the part of the adjusting plug extending into the second cavity having a second inclined surface.

[0025] When the throat pipe is located at the second position, the end of the sleeve away from the first cavity abuts against the second inclined surface; the second inclined surface is arranged to, when the adjusting plug is pressed, the sleeve slides relative to the second inclined surface to make the sleeve move towards the first cavity.

[0026] When the adjusting bolt is pressed, the end of the sleeve far from the first cavity abuts against the second inclined surface and slides along the second inclined surface to move the sleeve towards the first cavity, so that the first inclined surface on the sleeve is in sliding fit with the positioning part; when the sleeve continues to move towards the first cavity under the action of the adjusting bolt, the inner wall of the through hole abuts against the first inclined surface and moves along the first inclined surface to move away from the groove, so that the deformation of the elastic connecting part changes, and the positioning part is released from the groove.

[0027] Preferably, the adjusting bolt is provided with a reset member, which is used to reset the adjusting bolt when the pressing of the adjusting bolt is stopped.

[0028] In the technical solution, after the adjusting bolt is loosened, the reset member makes the adjusting bolt return to the position when the adjusting bolt is not pressed, so that the reset is automatically realized.

[0029] Preferably, the reset member is a spring.

[0030] In the technical solution, after the external force is stopped, the spring is no longer pressed, and the spring force drives the adjusting bolt to move, so that the reset of the adjusting bolt is realized and the assembly is facilitated.

[0031] Preferably, the steady flow valve further comprises a second elastic member, and the two ends of the second elastic member abut against the fixed part and the sleeve respectively.

[0032] In the technical solution, the fixed part of the positioning member is fixed relative to the throat pipe through the second elastic member, so that the positioning member can move together with the throat pipe, and the second elastic member can also drive the sleeve to automatically realize the reset when the steady flow valve is reset.

[0033] Preferably, the length between the first position and the second position is less than the limit compression length of the first elastic member.

[0034] In the technical solution, the movable distance of the throat pipe is shorter than the limit compression length of the first elastic member, so that the first elastic member is prevented from being in the limit compression, and the use performance of the first elastic member is affected.

[0035] Preferably, the inner diameter of the second cavity is greater than the inner diameter of the first cavity.

[0036] In the technical solution, the first cavity is in fit with the throat pipe, the inner diameter of the second cavity is larger to fit with the positioning member, and the assembly of the components is facilitated.

[0037] Preferably, the first elastic member is a spring, the outer surface of the throat pipe has a second protruding part, the first elastic member is sleeved on the throat pipe and located between the second protruding part and the first cavity, and when the throat pipe is located at the first position, the two ends of the first elastic member abut against the second protruding part and the end face where the opening of the first cavity is located respectively.

[0038] In the technical solution, when the steady flow valve resets, the first elastic member rebounds, drives the throat pipe to rebound through the second protruding part, and automatically resets.

[0039] The application further provides a water heater system comprising the steady flow valve.

[0040] In the technical solution, the water inlet amount of the water heater system is controlled through the steady flow valve, so that the water heater always maintains a relatively stable water inlet flow rate, thereby preventing water flow fluctuation from affecting the use experience or causing part damage, and avoiding that the water heater pipeline is broken due to excessive external fluid pressure or that the steady flow valve body is broken due to the volume expansion of water in the steady flow valve caused by ice formation in the steady flow valve due to excessively low external temperature.

[0041] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be combined at will, that is, the preferred examples of the application are obtained.

[0042] The positive progress effect of the application is that:

[0043] In use of the steady flow valve, when the flow rate or pressure of the fluid in the fluid passage increases, the fluid pushes the throat pipe to move, so that the overlapping area of the through-flow hole on the shell and the fluid outlet on the throat pipe gradually decreases to control the flow rate, and when the flow rate or pressure decreases, the first elastic member pushes the throat pipe to reset, so that the overlapping area increases; when the flow rate or pressure of the fluid in the fluid passage increases to a certain extent, the throat pipe moves to a certain position, and through cooperation of the positioning member on the throat pipe and the limiting part on the shell, the throat pipe is fixed to be immovable to achieve locking, so that the through-flow hole and the fluid outlet are not overlapped, the structure is simple, and the locking is reliable. Through use of the above-mentioned steady flow valve in the water heater system, the water inlet amount of the water heater system can be effectively controlled, so that the water heater always maintains a relatively stable water inlet flow rate, thereby preventing water flow fluctuation from affecting the use experience or causing part damage, and avoiding that the water heater pipeline is broken due to excessive external fluid pressure or that the steady flow valve body is broken due to the volume expansion of water in the steady flow valve caused by ice formation in the steady flow valve due to excessively low external temperature. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is a sectional view of the steady flow valve of the first embodiment of the application.

[0045] Figure 2 It is a whole schematic view of the steady flow valve of the application.

[0046] Figure 3 It is a three-dimensional schematic view of the throat pipe of the steady flow valve of the application.

[0047] Figure 4 It is a three-dimensional schematic view of the adjusting pin of the steady flow valve of the application.

[0048] Figure 5This is a three-dimensional schematic diagram of the positioning component of the flow stabilizing valve of the present invention.

[0049] Explanation of reference numerals in the attached figures

[0050] Housing 1, first cavity 11, flow hole 12, limiting part / groove 13, second cavity 14;

[0051] Throat 2, fluid channel 21, fluid outlet 22, first protrusion 23, second protrusion 24;

[0052] First elastic element 3;

[0053] Positioning component 4, fixing part 41, elastic connecting part 42, first connecting part 421, second connecting part 422, positioning part 43, through hole 431;

[0054] Sleeve 5, first inclined surface 51;

[0055] Adjusting bolt 6, second inclined surface 61, reset member 62, pressing part 63, abutting part 64, connecting part 65;

[0056] Second elastic element 7. Detailed Implementation

[0057] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0058] Example 1

[0059] like Figures 1 to 5 The diagram shows a schematic representation of an embodiment of the flow-regulating valve of the present invention and a water heater system using the flow-regulating valve. The flow-regulating valve includes a housing 1 and a throat 2. The throat 2 is housed within the housing 1, and a fluid channel 21 is provided within the throat 2. A fluid outlet 22 communicating with the fluid channel 21 is provided on the side wall of one end of the throat 2. The housing 1 has a first cavity 11 that fits and matches the outer peripheral surface of the throat 2. A flow-through hole 12 communicating with the outside is provided on the wall of the first cavity 11. The end of the throat 2 with the fluid outlet 22 is slidably disposed within the first cavity 11. When the throat 2 moves from a first position to a second position, the overlapping area of ​​the flow-through hole 12 and the fluid outlet 22 gradually decreases. A first elastic element 3 is also provided on the throat 2. When the throat 2 moves from the first position to the second position, the first elastic element 3 applies a force to the throat 2 to return it to the first position. A positioning element 4 is provided on the throat tube 2, and the positioning element 4 moves with the throat tube 2. A limiting part 13 is provided inside the housing 1. When the throat tube 2 moves to the second position, the limiting part 13 cooperates with the positioning element 4 to prevent the throat tube 2 from moving to the first position. In this embodiment, the first position is the position where the overlapping area of ​​the flow hole 12 and the fluid outlet 22 is the largest, and the second position is the position where the overlapping area of ​​the flow hole 12 and the fluid outlet 22 is exactly the smallest.

[0060] When the flow rate or pressure of the fluid in the fluid passage 21 increases, the fluid pushes the throat pipe 2 to move so that the overlapping area of the through-flow hole 12 on the shell 1 and the fluid outlet 22 on the throat pipe 2 gradually decreases to control the flow rate, and when the flow rate or pressure decreases, the first elastic member 3 pushes the throat pipe 2 to reset so that the overlapping area increases; when the flow rate or pressure of the fluid in the fluid passage 21 increases to a certain extent, the throat pipe 2 moves to a certain position, and the positioning member 4 on the throat pipe 2 cooperates with the limiting part 13 on the shell 1 to fix the throat pipe 2 to achieve locking, so that the through-flow hole 12 and the fluid outlet 22 are not overlapped, the structure is simple, and the locking is reliable.

[0061] In the embodiment, the through-flow hole 12 and the fluid outlet 22 are both circular and four in number. In other embodiments, the through-flow hole 12 and the fluid outlet 22 can also be other shapes and / or numbers, but the through-flow hole 12 and the fluid outlet 22 need to be one-to-one corresponding.

[0062] The shell 1 includes a second cavity 14 in communication with the first cavity 11, and the limiting part 13 is a groove arranged in the second cavity 14. When the positioning member 4 moves to a certain position with the throat pipe 2, it falls into the groove to achieve locking, which is more stable and reliable.

[0063] In other embodiments, the limiting part 13 can also be a protrusion, and the positioning member 4 is correspondingly provided with a recess cooperating with the limiting part 13, without affecting the locking effect.

[0064] The positioning member 4 includes a fixed part 41, an elastic connecting part 42 and a positioning part 43, the fixed part 41 is connected to the throat pipe 2, the positioning part 43 is connected to the fixed part 41 through the elastic connecting part 42, and the positioning part 43 is arranged to be able to be clamped into the groove 13 when the throat pipe 2 is located at the second position. When the positioning member 4 is assembled to the throat pipe 2, the positioning member 4 and the throat pipe 2 are detachably connected, the throat pipe 2 is relatively fixed with the fixed part 41, and the positioning part 43 is pressed against the inner wall of the second cavity 14 to make the elastic connecting part 42 deform, the throat pipe 2 drives the positioning member 4 to move through the fixed part 41, when the positioning member 4 moves to the second position with the throat pipe 2, the inner wall of the second cavity 14 releases the pressure on the elastic connecting part 42, the deformation of the elastic connecting part 42 is released, and the positioning member 4 falls into the groove 13 to achieve locking, which is stable and the cooperating structure is simple.

[0065] The elastic connecting part 42 includes a first connecting part 421 and a second connecting part 422, the first connecting part 421 is connected to the fixed part 41, the second connecting part 422 is connected to the first connecting part 421, and the second connecting part 422 extends towards the inner wall of the second cavity 14 from the direction of the second position to the direction of the first position. When the positioning member 4 moves to the second position with the throat pipe 2, the shell 1 releases the pressure on the second connecting part 422, the deformation of the second connecting part 422 is released, and the positioning member 4 falls into the groove 13 to achieve stable locking through the cooperation of the protrusion and the recess.

[0066] In other embodiments, the first connecting portion 421 is not provided, and the second connecting portion 422 can be directly fixedly connected with the fixed portion 41 without affecting the normal operation of the elastic connecting portion 42.

[0067] The positioning portion 43 is in a plate shape, and a middle portion of the positioning portion 43 has a through hole 431. The positioning portion 43 is sleeved on the throat pipe 2, and the positioning portion 43 is away from the fixed portion 41 relative to the first cavity 11. The positioning portion 43 is convenient to abut on other structures of the throat pipe 2 and move together with the throat pipe 2, and the through hole 431 is convenient to assemble and reduce the weight of the positioning piece 4.

[0068] In other embodiments, the positioning portion 43 can also be in a block shape or other structures without affecting the normal operation of the assembly and the steady flow valve.

[0069] The steady flow valve further comprises a sleeve 5, which is sleeved on the throat pipe 2. The throat pipe 2 has a first protruding portion 23, which is arranged at an end of the sleeve 5 away from the fluid outlet 22. An outer circumferential surface of the sleeve 5 comprises a first inclined surface 51, which is located at a side of the sleeve 5 away from the groove 13, and the first inclined surface 51 is inclined towards the throat pipe 2 from the first position to the second position. The sleeve 5 is arranged to, when moving towards the first cavity 11 under the action of an external force, the first inclined surface 51 abuts against the inner wall of the through hole 431 to make the positioning portion 43 disengage from the groove 13. When the sleeve 5 moves towards the first cavity 11 under the action of an external force, the inner wall of the through hole 431 abuts against the first inclined surface 51 and moves along the first inclined surface 51 away from the groove 13, so that the deformation of the elastic connecting portion 42 changes, and the elastic connecting portion 42 is disengaged from the groove 13 to realize resetting. The structure is relatively simple. Meanwhile, the first protruding portion 23 limits the movement position of the sleeve 5 to avoid exceeding the first position.

[0070] When the positioning portion 43 disengages from the groove 13, there is a gap between the inner wall of the through hole 431 away from the first inclined surface 51 and the sleeve 5. With the above arrangement, when the positioning portion 43 and the first inclined surface 51 continue to slide, the inner wall of the through hole 431 away from the first inclined surface 51 can continue to move towards the throat pipe 2, so that the positioning portion 43 can continue to abut against the inner wall of the second cavity 14 outside the groove 13 under the action of the elastic connecting portion 42 to completely disengage from the groove 13.

[0071] The steady flow valve further comprises an adjusting plug 6, the adjusting plug 6 extends into the second cavity 14 from the wall of the second cavity 14, and the part of the adjusting plug 6 extending into the second cavity 14 is provided with a second inclined surface 61, the second inclined surface 61 is located on the side of the adjusting plug 6 close to the first cavity 11, and the second inclined surface 61 is inclined towards the direction close to the throat pipe 2 from the second position to the first position; when the throat pipe 2 is located at the second position, the end of the sleeve 5 away from the first cavity 11 abuts against the second inclined surface 61; the second inclined surface 61 is arranged to be abutted against by the sleeve 5 to make the sleeve 5 move towards the direction close to the first cavity 11 when the adjusting plug 6 is pressed. When the adjusting plug 6 is pressed, the end of the sleeve 5 away from the first cavity 11 abuts against the second inclined surface 61 and slides along the second inclined surface 61 to make the sleeve 5 move towards the direction close to the first cavity 11, so that the first inclined surface 51 on the sleeve 5 is in sliding fit with the positioning part 43; when the sleeve 5 continues to move towards the direction close to the first cavity 11 under the action of the adjusting plug 6, the inner wall of the through hole 431 abuts against the first inclined surface 51 and moves along the first inclined surface 51 to the direction away from the groove 13, so that the deformation of the elastic connecting part 42 changes, and the positioning part 43 is released from the groove 13.

[0072] The adjusting plug 6 is provided with a reset member 62, the reset member 62 is used to reset the adjusting plug 6 when the pressing of the adjusting plug 6 is stopped. After the adjusting plug 6 is released, the reset member 62 makes the adjusting plug 6 return to the position when the adjusting plug 6 is not pressed, so that the reset is automatically realized.

[0073] The adjusting plug 6 is provided with a pressing part 63 outside the second cavity 14, the second inclined surface 61 is arranged on an abutting part 64, and the pressing part 63 is connected with the abutting part 64 through a connecting part 65. The reset member 62 is a spring, the spring is sleeved on the connecting part 65, and the two ends thereof abut against the pressing part 63 and the abutting part 64 respectively; after the external force is stopped, the spring is no longer pressed, and the elastic force of the spring drives the adjusting plug 6 to move, so that the reset of the adjusting plug 6 is realized and the assembly is facilitated.

[0074] In other embodiments, the reset member 62 can also be other structures without affecting the reset of the steady flow valve.

[0075] The steady flow valve further comprises a second elastic member 7, the second elastic member 7 is a spring, and the two ends of the second elastic member 7 abut against the fixed part 41 and the sleeve 5 respectively. The second elastic member 7 relatively fixes the fixed part 41 of the positioning member 4 with the throat pipe 2, so that the positioning member 4 can move together with the throat pipe 2, and the second elastic member 7 can also drive the sleeve 5 to automatically realize the reset when the steady flow valve is reset.

[0076] In other embodiments, the second elastic member 7 can also be other structures without affecting the locking and reset of the steady flow valve.

[0077] The length of the first position and the second position is less than the limit compression length of the first elastic member 3. The movable distance of the throat pipe 2 is shorter than the limit compression length of the first elastic member 3, so as to avoid the first elastic member 3 being in the limit compression, and affecting the use performance of the first elastic member 3.

[0078] The inner diameter of the second cavity 14 is larger than the inner diameter of the first cavity 11. The first cavity 11 is in fit with the throat pipe 2, and the inner diameter of the second cavity 14 is larger to fit with the positioning member 4, and facilitate the assembly of the components.

[0079] The first elastic member 3 is a spring, the outer surface of the throat pipe 2 has a second protruding part 24, the first elastic member 3 is sleeved on the throat pipe 2 and located between the second protruding part 24 and the first cavity 11; when the throat pipe 2 is located at the first position, the two ends of the first elastic member 3 respectively abut against the second protruding part 24 and the end face where the opening of the first cavity 11 is located, and the positioning member 4 abuts against the side of the second protruding part 24 away from the first cavity 11. When the steady flow valve needs to be reset, the first elastic member 3 rebounds, drives the throat pipe to rebound through the second protruding part 24, and automatically realizes the reset.

[0080] In other embodiments, the first elastic member 3 can also be other structures without affecting the reset of the steady flow valve.

[0081] The embodiment also provides a water heater system comprising the steady flow valve described above. By using the steady flow valve described above in the water heater system, the water inflow of the water heater system can be effectively controlled, so that the water heater always maintains a relatively stable water inflow, thereby preventing the water flow fluctuation from affecting the use experience or causing part damage, and avoiding the water heater pipe being broken due to the excessive external fluid pressure, or the steady flow valve body being broken due to the water in the steady flow valve being frozen and expanding due to the excessively low external temperature.

[0082] Embodiment two

[0083] Most of the structures of the embodiment are the same as those of the embodiment one, and the difference lies in that the second elastic member 7 is not arranged, and the positioning member 4 is fixedly connected with the throat pipe 2.

[0084] In the embodiment, the second elastic member 7 is not arranged in the steady flow valve.

[0085] Correspondingly, the fixed part 41 of the positioning member 4 is fixedly connected with the throat pipe 2 and moves together with the throat pipe 2. The steady flow valve further simplifies the internal structure while ensuring the locking and reset functions, thereby reducing the assembly difficulty and production cost.

[0086] In the specific implementation process, various embodiments of the present application can also be combined to obtain better technical effects.

[0087] Although the specific embodiments of the present application have been described above, it is understood by those skilled in the art that the present application is only illustrated by way of example, and the scope of protection of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the scope of protection of the present application.

Claims

1. A steady flow valve characterized by, The flow stabilizing valve comprises a housing and a throat pipe, the throat pipe is arranged in the housing, a fluid passage is arranged in the throat pipe, a fluid outlet is arranged on the side wall of one end of the throat pipe and communicates with the fluid passage, the housing has a first cavity which matches the outer peripheral surface of the throat pipe, a through hole which communicates with the outside is arranged on the wall of the first cavity, the end of the throat pipe which has the fluid outlet is arranged in the first cavity, and the overlapping area of the through hole and the fluid outlet gradually decreases when the throat pipe moves from the first position to the second position. A first elastic member is arranged on the throat pipe, and the first elastic member is used to apply a force to the throat pipe to return to the first position when the throat pipe moves from the first position to the second position. A positioning member is arranged on the throat pipe, the positioning member moves with the throat pipe, a limiting part is arranged in the housing, and the limiting part cooperates with the positioning member to prevent the throat pipe from moving to the first position when the throat pipe moves to the second position. The housing comprises a second cavity which communicates with the first cavity, and the limiting part is a groove arranged in the second cavity. The positioning member comprises a fixed part, an elastic connecting part and a positioning part, the fixed part is connected to the throat pipe, the positioning part is connected to the fixed part through the elastic connecting part, and the positioning part is arranged to be clamped into the groove when the throat pipe is in the second position. The positioning part is a plate structure, the middle part of the positioning part has a through hole, the positioning part is sleeved on the throat pipe, and the positioning part is away from the first cavity relative to the fixed part. The flow stabilizing valve further comprises a sleeve, the sleeve is sleeved on the throat pipe, the throat pipe has a first protruding part, and the first protruding part is arranged at the end of the sleeve which is away from the fluid outlet. The outer peripheral surface of the sleeve comprises a first inclined surface, the first inclined surface is located at the side of the sleeve which is away from the groove, and the first inclined surface is inclined towards the throat pipe in the direction from the first position to the second position. The sleeve is arranged to press the inner wall of the through hole with the first inclined surface when the sleeve moves towards the first cavity under the action of an external force, so that the positioning part is separated from the groove. The flow stabilizing valve further comprises an adjusting plug, the adjusting plug extends into the second cavity from the wall of the second cavity, and the part of the adjusting plug which extends into the second cavity has a second inclined surface. When the throat pipe is in the second position, the end of the sleeve which is away from the first cavity abuts against the second inclined surface, and the second inclined surface is arranged to make the sleeve slide relative to the second inclined surface when the adjusting plug is pressed, so that the sleeve moves towards the first cavity.

2. The steady flow valve of claim 1, wherein The elastic connecting part comprises a first connecting part and a second connecting part, the first connecting part is connected to the fixed part, the second connecting part is connected to the first connecting part, and the second connecting part extends towards the inner wall of the second cavity in the direction from the second position to the first position.

3. The steady flow valve of claim 1, wherein When the positioning part is separated from the groove, there is a gap between the through hole which is away from the inner wall of the first inclined surface and the sleeve.

4. The steady flow valve of claim 1, wherein The adjusting pin is provided with a reset member, which is used to reset the adjusting pin when the pressing of the adjusting pin is stopped.

5. The steady flow valve of claim 4, wherein, The reset member is a spring.

6. The steady flow valve of claim 1, wherein The steady flow valve further comprises a second elastic member, two ends of the second elastic member abutting against the fixed part and the sleeve respectively.

7. The steady flow valve of claim 1, wherein The length between the first position and the second position is less than the limit compression length of the first elastic member.

8. The steady flow valve of claim 1, wherein, The inner diameter of the second cavity is greater than the inner diameter of the first cavity.

9. The steady flow valve of any one of claims 1-8, wherein, The first elastic member is a spring, the outer surface of the throat pipe has a second protruding part, the first elastic member is sleeved on the throat pipe and located between the second protruding part and the first cavity; when the throat pipe is located at the first position, two ends of the first elastic member abut against the second protruding part and the end face where the opening of the first cavity is located respectively.

10. A water heater system, characterized by The water heater system comprises the steady flow valve according to any one of claims 1-9.

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