CN216666519U

CN216666519U - Water flow adjusting device and water heater comprising same

Info

Publication number: CN216666519U
Application number: CN202123152750.5U
Authority: CN
Inventors: 段裘铭; 宋一诺; 周超
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-06-03
Anticipated expiration: 2031-12-14

Abstract

The utility model provides a water flow regulating device and a water heater comprising the same, wherein the water flow regulating device comprises a valve body, a valve core, a valve rod and a motor, the valve body is provided with an axially extending inner cavity, one end of the inner cavity is provided with a water outlet, the other end of the inner cavity is provided with a threaded hole, the outer peripheral surface of the valve rod is provided with an external thread matched with the threaded hole, the valve rod is in threaded connection with the threaded hole, one end of the valve rod is positioned in the inner cavity and is connected with the valve core, and the other end of the valve rod penetrates through the threaded hole to extend out of the valve body and is in transmission connection with the motor. The valve rod of the water flow regulating device is directly driven by the motor, the structure is simple, the valve rod is driven by the motor to change rotation into axial movement through threaded fit, and further the valve core changes the opening size of the water outlet, so that the water flow regulation has good linearity, and the stability of the water flow of the water outlet is ensured.

Description

Water flow adjusting device and water heater comprising same

Technical Field

The utility model relates to a water flow regulating device and a water heater comprising the same.

Background

The water volume server is generally applied to a water heater, and can automatically adjust the water inlet flow according to the set temperature of hot water, the set water pressure and the set change of the water inlet temperature, so that the water outlet flow is automatically adjusted and constant, and the accuracy and the constancy of the water outlet temperature are ensured; the phenomenon of quenching and shock heating of effluent in the use process of the water heater is solved; the temperature of the outlet water can be freely adjusted from low temperature to high temperature in a wide range all the year round.

CN201320577752.5 discloses a flow sensing device and an electric water heater using the same, which includes a water inlet pipe, a connecting pipe, a hall element, a turbine rotor, a stepping motor and an adjustable flow valve body, wherein the connecting pipe is connected to the water inlet pipe, the turbine rotor is disposed inside the connecting pipe, the hall element is disposed on the outer wall of the connecting pipe and located at the corresponding position of the turbine rotor, the adjustable flow valve body is disposed inside the end of the connecting pipe, the stepping motor is disposed on the side surface of the outer wall at the end of the connecting pipe, and drives the adjustable flow valve body through a gear, and the adjustable flow valve body rotates within the range of 0-60 degrees under the driving of the stepping motor to adjust the aperture of the valve body, thereby changing the flow of the water. This flow induction system drives the mode that the valve rod removed regulation discharge through gear drive's mode not only structure is complicated, and the linearity of discharge regulation is not good moreover, influences the stability of delivery port discharge.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects that the structure of a water flow regulating device in the prior art is complex, and the linearity is poor during water flow regulation to influence the stability of water flow at a water outlet, and provides a water flow regulating device and a water heater comprising the same.

The utility model solves the technical problems through the following technical scheme:

the utility model provides a water flow regulating device which comprises a valve body, a valve core, a valve rod and a motor, wherein the valve body is provided with an axially extending inner cavity, one end of the inner cavity is provided with a water outlet, the other end of the inner cavity is provided with a threaded hole, the outer peripheral surface of the valve rod is provided with an external thread matched with the threaded hole, the valve rod is in threaded connection with the threaded hole, one end of the valve rod is positioned in the inner cavity and is connected with the valve core, and the other end of the valve rod penetrates through the threaded hole to extend out of the valve body and is in transmission connection with the motor.

In this scheme, adopt above-mentioned structural style, the valve rod passes through motor direct drive, simple structure, and the valve rod will rotate through screw-thread fit under the drive of motor and become axial displacement, and then makes the case change the opening size of delivery port, makes water flow control have fine linearity, has guaranteed the stability of delivery port water flow.

Preferably, the water flow adjusting device comprises a valve rod supporting piece, the valve rod supporting piece comprises a threaded portion, the threaded hole is formed in the threaded portion, an accommodating cavity is formed in one end, away from the water outlet, of the inner cavity, and the valve rod supporting piece is fixedly arranged in the accommodating cavity.

In this scheme, adopt above-mentioned structural style, provide support and screw-thread fit through valve rod support piece for the valve rod, the assembly of being convenient for.

Preferably, the outer diameter of the accommodating cavity is larger than the inner diameter of the inner cavity, a pressing plate is further arranged on the outer side of the accommodating cavity, the inner side surface of the pressing plate abuts against the valve rod supporting piece, and the pressing plate is detachably connected with the valve body.

In this scheme, adopt above-mentioned structural style, valve rod support piece adopts detachably mode with the valve body, simple structure, convenient processing.

Preferably, a sealing ring is further sleeved on the outer peripheral side of the valve rod and is located between the valve core and the external thread;

the valve rod support piece further comprises a sealing portion, the sealing portion is located on one side, close to the water outlet, of the threaded portion, the sealing portion is provided with a through hole which is communicated with the threaded hole and is coaxially arranged, and the outer peripheral side of the sealing ring abuts against the inner peripheral surface of the through hole.

In this scheme, adopt above-mentioned structural style, reinforcing water flow adjusting device's leakproofness avoids water flow adjusting device to take place to leak when carrying out water flow regulation.

Preferably, the water outlet is provided with a guide part, the guide part is provided with a guide hole coaxial with the inner cavity, and a water outlet is arranged on the outer peripheral side of the guide hole;

the valve rod is also provided with a guide rod, and the guide rod is arranged in the guide hole in a sliding manner.

In this scheme, adopt above-mentioned structural style, improve the stability that the valve rod removed, avoid the case to be strikeed by rivers and take place crooked, influence the regulation of discharge.

Preferably, the water flow adjusting device further comprises a water inlet pipe, a turbine and a hall element, the water inlet pipe is communicated with the inner cavity, the turbine is arranged in the water inlet pipe, and the hall element is arranged on the outer wall of the water inlet pipe and located at a position corresponding to the turbine.

In this scheme, adopt above-mentioned structural style, through turbine and hall element's cooperation, can detect the discharge of water flow adjusting device's water inlet, the discharge of water flow adjusting device in order to adjust the delivery port according to setting for the discharge of adjusting valve rod removal of being convenient for.

Preferably, the water inlet end of the water inlet pipe is provided with a flow guide piece.

In this scheme, adopt above-mentioned structural style, set up the water conservancy diversion piece at the end of intaking of inlet tube, avoid outside rivers unstability impact turbine, influence the stability of turbine.

Preferably, the water outlet end of the water inlet pipe is provided with a flow choking piece.

In this scheme, adopt above-mentioned structural style, set up the choked flow piece at the play water end of inlet tube, slow down rivers, avoid the rivers in the inlet tube to produce great impact to case and valve rod when flowing.

Preferably, the water inlet pipe and the valve body are integrally formed.

In the scheme, the structure is adopted, so that the use is convenient, and the cost is low.

The utility model also provides a water heater, which comprises the water flow regulating device.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.

The positive progress effects of the utility model are as follows:

the valve rod of the water flow regulating device is directly driven by the motor, the structure is simple, the valve rod is driven by the motor to change rotation into axial movement through threaded fit, and further the valve core changes the opening size of the water outlet, so that the water flow regulation has good linearity, and the stability of the water flow of the water outlet is ensured.

Drawings

Fig. 1 is a schematic overall structure diagram of a water flow rate adjusting device according to a preferred embodiment of the utility model.

Fig. 2 is an exploded view of the water flow regulating device of fig. 1.

Fig. 3 is a sectional view of the water flow regulating device of fig. 1.

FIG. 4 is a schematic structural view of a valve stem cartridge assembly according to a preferred embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a motor according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of a stem support according to a preferred embodiment of the present invention.

Description of reference numerals:

valve body 100

Inner cavity 101

Water outlet 102

Guide part 103

Pressure plate 110

Valve cartridge 200

Valve stem 300

Valve stem body 310

Drive end 320

Threaded segment 330

Seal segment 340

Guide bar 350

Motor 400

Motor body 410

Spacing post 420

Motor flat cable 430

Valve stem support 500

Screw thread portion 510

Sealing part 520

Seal ring 600

Water inlet pipe 700

Water inlet 701

Hall element 800

Turbine assembly 900

Barrel 910

Drainage piece 920

End cap 930

Turbine 940

Rotating shaft 950

Detailed Description

The present invention will be more clearly and completely described below by way of examples in conjunction with the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1 to 6, the water flow rate adjusting device according to the present embodiment includes a valve body 100, a valve core 200, a valve rod 300 and a motor 400, the valve body 100 has an axially extending inner cavity 101, one end of the inner cavity 101 has a water outlet 102, the other end of the inner cavity 101 is provided with a threaded hole, the outer peripheral surface of the valve rod 300 has an external thread matching with the threaded hole, the valve rod 300 is in threaded connection with the threaded hole, one end of the valve rod 300 is located in the inner cavity 101 and connected to the valve core 200, and the other end of the valve rod 300 passes through the threaded hole to extend out of the valve body 100 and is in transmission connection with the motor 400.

The water flow adjusting device adopts the structure, the valve rod 300 is directly driven by the motor 400, the structure is simple, the valve rod 300 is driven by the motor 400 to rotate through threaded fit to be axially moved, and then the valve core 200 changes the opening size of the water outlet 102, so that the water flow adjustment has good linearity, and the stability of the water flow of the water outlet 102 is ensured.

Specifically, as shown in fig. 3 and 4, in the present embodiment, the valve stem 300 and the valve core 200 are assembled, the valve stem 300 includes a valve stem body 310, the valve core 200 is fixedly disposed at one end of the valve stem body 310, one end of the valve stem body 310 away from the valve core 200 is a driving end 320, and the driving end 320 is used for being drivingly connected to the motor 400. The screw thread section 330 and the sealing section 340 are sequentially arranged along the axial direction of the valve rod body 310 from the driving end 320 to the valve core 200, the screw thread section 330 is used for being in threaded connection with a threaded hole in the valve body 100, the motor 400 drives the valve rod 300 to rotate, the valve rod 300 converts self rotation into axial movement in the limitation of threaded fit, the valve rod 300 drives the valve core 200 to move towards or away from the water outlet 102 through the positive and negative rotation of the motor 400, and therefore the water flow of the water outlet 102 is changed, and the water flow adjustment has good linearity. Because one end of the valve rod 300 penetrates out of the valve body 100, the valve rod 300 can move relative to the valve body 100, and therefore, in order to avoid the water leakage phenomenon of the valve body 100, the sealing section 340 is arranged on the valve rod 300, and the leakage at the threaded connection part of the valve rod 300 and the valve body 100 is avoided.

As shown in fig. 5, in the present embodiment, the motor 400 is a servo motor 400, and the forward and reverse rotation of the motor 400 can be accurately controlled. The motor 400 includes a motor body 410, a motor driving part, and a motor bus 430. The motor body 410 is fixed on the valve body 100 by screws, and the driving end 320 of the valve rod 300 extends out of the valve body 100 and is in transmission connection with the motor driving part. The motor driving part comprises a limiting column 420, the limiting column 420 is of a hollow structure, the inner peripheral surface of the limiting column 420 is provided with a clamping structure matched with the outer peripheral surface of the driving end 320 of the valve rod 300, and the clamping structure only limits the limiting column 420 and the valve rod 300 to rotate circumferentially and does not limit the relative axial movement of the limiting column 420 and the valve rod 300. The motor bus 430 is used for connecting with an external controller, a power supply, etc., and is used for providing control signal transmission and electric power driving for the motor 400.

As shown in fig. 3 and 6, in the present embodiment, the water flow rate adjusting device includes a stem support 500, the stem support 500 includes a threaded portion 510, the threaded portion 510 is disposed in the threaded portion 510, an end of the inner cavity 101 away from the water outlet 102 has a receiving cavity, and the stem support 500 is at least partially fixed in the receiving cavity. The support and screw-fit of the valve stem 300 is provided by the stem support 500 to facilitate assembly.

The external diameter that holds the chamber is greater than the internal diameter of inner chamber 101, and the outside that holds the chamber still is equipped with clamp plate 110, and the medial surface of clamp plate 110 supports and presses in valve rod support piece 500, and clamp plate 110 can dismantle with valve body 100 and be connected. The valve stem supporter 500 and the valve body 100 are detachably coupled, and have a simple structure and are easily manufactured and assembled.

In the present embodiment, the stem supporter 500 is restricted from being fixed relative to the valve body 100 by the pressing of the pressing plate 110, that is, when the motor 400 drives the stem 300 to rotate, the stem supporter 500 does not rotate and move axially, so that the stem 300 can move axially.

In other embodiments, a threaded hole may also be directly formed in the valve body 100, and the detailed structure is not described herein.

As shown in fig. 3, 4 and 6, a sealing ring 600 is further sleeved on the outer peripheral side of the valve rod 300, and the sealing ring 600 is located at the sealing section 340 between the valve core 200 and the external thread. The stem holder 500 further includes a seal portion 520, the seal portion 520 is located on a side of the threaded portion 510 close to the water outlet 102, the seal portion 520 has a through hole communicating with the threaded hole and coaxially provided, and an outer peripheral side of the seal ring 600 abuts against an inner peripheral surface of the through hole. By adopting the structure, the sealing performance of the water flow adjusting device is enhanced, and water leakage of the water flow adjusting device during water flow adjustment is avoided.

As shown in FIG. 6, the stem support 500 is of two concentric hollow cylindrical configurations, with the sealing section 340 having a smaller cylindrical outer diameter than the threaded portion 510. The threaded portion 510 is located within the receiving cavity and the sealing portion 520 extends into the internal cavity 101.

As shown in fig. 3 and 4, the water outlet 102 has a guide portion 103, the guide portion 103 has a guide hole coaxial with the inner cavity 101, and a water outlet hole is provided on the outer periphery of the guide hole. The valve stem 300 also has a guide rod 350, and the guide rod 350 is slidably disposed in the guide hole. By adopting the structure, the stability of the movement of the valve rod 300 is improved, and the valve core 200 is prevented from being deflected due to the impact of water flow to influence the adjustment of water flow.

As shown in fig. 1 to 3, the water flow regulator further includes a water inlet pipe 700, a turbine 940 and a hall element 800, wherein the water inlet pipe 700 and the valve body 100 are integrally formed, and the water flow regulator has the advantages of convenient use and low cost. The water inlet pipe 700 is communicated with the inner cavity 101, a turbine 940 is arranged in the water inlet pipe 700, and the Hall element 800 is arranged on the outer wall of the water inlet pipe 700 and is positioned at a position corresponding to the turbine 940. The hall element 800 is fixed on the water inlet pipe 700 through a screw, and the water flow of the water inlet 701 of the water flow adjusting device can be detected through the matching of the turbine 940 and the hall element 800, so that the water flow adjusting device can move according to the set adjusting valve rod 300 to adjust the water flow of the water outlet 102.

As shown in fig. 3, in this embodiment, a turbine assembly 900 is disposed in the water inlet pipe 700, the turbine assembly 900 includes a cylinder 910, a turbine 940 and an end cover 930, an outer side wall of the cylinder 910 is attached to an inner wall surface of a cavity of the water inlet pipe 700, the turbine 940 is disposed in the cylinder 910, the turbine 940 is rotatably mounted in the cylinder 910 through a rotating shaft 950, two ends of the rotating shaft 950 are respectively connected to the supporting members at two ends of the cylinder 910, and the turbine 940 is driven by water flow to rotate. The end cap 930 is detachably mounted on the water outlet end of the cylinder 910, the end cap 930 can be used as a first support member for supporting the rotation shaft 950, and one end of the water inlet end of the cylinder 910 is provided with a second support member for supporting the rotation shaft 950. The barrel 910 has a snap on end at the end cap 930 for securing the barrel 910 within the water inlet tube 700. When the turbine assembly 900 is installed, the cylinder 910 is inserted into the water inlet pipe 700 from one end of the water inlet 701 of the water inlet pipe 700 and fixed in the water inlet pipe 700 by a snap connection. The snap may be provided on the end cap 930 or on the barrel 910.

A flow guide part is arranged at the water inlet 701 of the water inlet pipe 700. The water inlet 701 of the water inlet pipe 700 is provided with the flow guide part, so that the phenomenon that the turbine 940 is impacted by the unstable external water flow to influence the stability of the turbine 940 is avoided. In this embodiment, the flow guiding member and the second supporting member are the same component and are integrally formed with the cylinder 910.

The outlet end of the inlet tube 700 is provided with a flow blocking member. The flow blocking piece is arranged at the water outlet end of the water inlet pipe 700 to slow down water flow, so that the water flow in the water inlet pipe 700 is prevented from generating large impact on the valve core 200 and the valve rod 300 when flowing out. In this embodiment, the flow resistor is the same component as the end cap 930.

The embodiment of the utility model also discloses a water heater, which comprises the water flow regulating device. The water inlet 701 of the water inlet pipe 700 of the water flow regulating device is connected with an external pipeline, and the water outlet 102 is connected with the water inlet of the water heater.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims

1. The water flow regulating device is characterized by comprising a valve body, a valve core, a valve rod and a motor, wherein the valve body is provided with an inner cavity extending axially, one end of the inner cavity is provided with a water outlet, the other end of the inner cavity is provided with a threaded hole, the outer peripheral surface of the valve rod is provided with an external thread matched with the threaded hole, the valve rod is in threaded connection with the threaded hole, one end of the valve rod is located in the inner cavity and connected with the valve core, and the other end of the valve rod penetrates through the threaded hole to extend out of the valve body and is in transmission connection with the motor.

2. The water flow regulator of claim 1, wherein the water flow regulator includes a stem support, the stem support including a threaded portion, the threaded bore being disposed within the threaded portion, an end of the internal chamber distal from the water outlet having a receiving chamber, the stem support being fixedly disposed within the receiving chamber.

3. The water flow regulator according to claim 2, wherein the outer diameter of the receiving chamber is larger than the inner diameter of the inner chamber, a pressing plate is further disposed outside the receiving chamber, the inner side surface of the pressing plate abuts against the valve stem supporting member, and the pressing plate is detachably connected to the valve body.

4. The water flow regulating device according to claim 2, wherein a sealing ring is further sleeved on the outer peripheral side of the valve rod and positioned between the valve core and the external thread;

5. The water flow regulator according to claim 1, wherein the water outlet has a guide portion having a guide hole coaxial with the inner chamber, and a water outlet is provided on an outer peripheral side of the guide hole;

6. The water flow regulating device according to claim 1, further comprising a water inlet pipe, a turbine, and a hall element, wherein the water inlet pipe is communicated with the inner cavity, the turbine is disposed in the water inlet pipe, and the hall element is disposed on an outer wall of the water inlet pipe and located at a position corresponding to the turbine.

7. A water flow regulating device as claimed in claim 6, wherein the inlet end of the inlet tube is provided with a flow guide.

8. The water flow regulating device of claim 6, wherein the outlet end of the inlet tube is provided with a flow blocking element.

9. A water flow regulating device according to claim 6, wherein said inlet tube is integrally formed with said valve body.

10. A water heater, its characterized in that: the water heater comprises a water flow regulating device as claimed in any one of claims 1 to 9.