CN216590083U

CN216590083U - Electric thermostatic valve

Info

Publication number: CN216590083U
Application number: CN202121655612.6U
Authority: CN
Inventors: 朱洲阳; 曲胜
Original assignee: Foshan Jiulong Machine Co ltd
Current assignee: Foshan Jiulong Machine Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-05-24
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses an electric thermostatic valve which comprises an installation sleeve, wherein two water inlets are symmetrically formed in the wall of the installation sleeve about an axis, a water outlet is formed in the lower end of the installation sleeve in an extending mode, a valve core sleeve is arranged in the installation sleeve, a valve core is arranged in the valve core sleeve, a cover plate is fixedly arranged at the upper end of the installation sleeve, a motor is arranged on the cover plate, and the motor is in transmission connection with the valve core. The motor accurately controls the valve core to rotate, and the proportion of hot water and cold water is accurately adjusted, so that the water flowing out of the water outlet can be always kept in a constant temperature state.

Description

Electric thermostatic valve

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to an electric thermostatic valve.

Background

At present, the traditional thermostatic valve generally adopts a manual water mixing valve, when the thermostatic valve is used on an electric water heater and a solar water heater, the hot water output pressure is usually lower than the cold water supply pressure by several times or even dozens of times, the cold and hot water inlet proportion of the mixed water temperature is difficult to master during manual adjustment, the water temperature of continuous stable water cannot be obtained, particularly, the cold water supply pressure is too high, and the condition that a pressure reducing and flow limiting device is additionally arranged at the cold water inlet end of the water mixer is not adopted, the cold water flows backwards in a hot water supply pipeline easily due to carelessness during adjustment, and when warm water is further used in the electric water heater, the hot water outlet temperature change range of the first person for bathing and the second person for bathing is too large. A thermostatic valve capable of keeping the water in a constant temperature state is urgently needed.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide an electrically operated thermostatic valve that solves the above mentioned problems.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the electric thermostatic valve comprises an installation sleeve, wherein two water inlets are symmetrically arranged on the wall of the installation sleeve about an axis, a water outlet is formed in the lower end of the installation sleeve in an extending mode, a valve core sleeve is arranged in the installation sleeve, a valve core is arranged in the valve core sleeve, a cover plate is fixedly arranged at the upper end of the installation sleeve, a motor is arranged on the cover plate, and the motor is in transmission connection with the valve core.

Preferably, the valve core comprises a positioning portion, a sealing portion and a water quantity adjusting portion, wherein a notch matched with a shaft of the motor is formed in the upper end face of the positioning portion, a plurality of circular rings are arranged on the sealing portion in an extending mode at intervals, and an opening used for adjusting water quantity is formed in the water quantity adjusting portion.

Preferably, the side wall of the positioning portion is provided with a positioning pin, the cover plate is provided with a connecting hole corresponding to the positioning portion, the connecting hole is provided with a fan-shaped limiting opening, and the positioning pin is movable in the fan-shaped limiting opening.

Preferably, the opening is formed by cutting along the radial direction of the side wall of the water quantity adjusting part, and the cutting depth is equal to the outer circle radius of the water quantity adjusting part.

Preferably, the valve core sleeve is provided with through holes corresponding to the two water inlets respectively, and the diameter of each through hole is the same as the depth of the opening.

Preferably, the inner wall of the mounting sleeve is provided with a plurality of clamping grooves which are symmetrically arranged relative to the axis of the mounting sleeve, and the outer wall of the valve core sleeve is provided with a buckle corresponding to the clamping grooves.

Preferably, the water outlet and one of the water inlets for the inflow of the hot water are both provided with temperature probes.

Compared with the prior art, the utility model has the beneficial effects that: the valve core is accurately controlled to rotate by the motor, the proportion of hot water and cold water is accurately allocated, and water flowing out of the water outlet can be always kept in a constant temperature state.

Drawings

FIG. 1 is an exploded view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

In the figure: the water supply device comprises an installation sleeve 1, water inlets (11a, 12b), a water outlet 12, a clamping groove 13, a valve core sleeve 2, a through hole 21, a buckle 22, a valve core 3, a positioning part 31, a notch 311, a sealing part 32, a circular ring 321, a water quantity adjusting part 33, an opening 331, a cover plate 4, a connecting hole 41, a fan-shaped limiting hole 42, a motor 5, a positioning pin 6 and a temperature probe 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The embodiment of the utility model shown in fig. 1 to 3 provides an electric thermostatic valve, which comprises an installation sleeve 1, wherein two water inlets (11a, 11b) are symmetrically arranged on the wall of the installation sleeve 1 about an axis, one of the water inlets 11a is used for supplying hot water, and the other water inlet 11b is used for supplying cold water; a water outlet 12 extends from the lower end of the mounting sleeve 1, a valve core sleeve 2 is arranged in the mounting sleeve 1, and a valve core 3 is arranged in the valve core sleeve 2; a cover plate 4 is fixedly arranged at the upper end of the mounting sleeve 1, the shape of the main body of the cover plate 4 is the same as that of the upper end surface of the mounting sleeve 1, and two screw fixing positions are formed on both sides of the upper end of the mounting sleeve 1 and the cover plate 4 and are fixedly connected through screws; the cover plate 4 is provided with a motor 5, two sides of the cover plate 4 are bent to form two corresponding folding lugs, and the motor 5 is fixedly connected to the folding lugs through screws; the motor 5 is in transmission connection with the valve core 3. The motor 5 is a servo motor; according to the utility model, the motor 5 is used for accurately controlling the valve core 3 to rotate, and the proportion of hot water and cold water is adjusted, so that the water flowing out of the water outlet 12 is always kept in a constant temperature state.

In the present embodiment, the valve element 3 includes a positioning portion 31, a sealing portion 32, and a water amount adjusting portion 33; wherein: the upper end surface of the positioning portion 31 is provided with a notch 311 matched with the shaft of the motor 5, specifically, the shaft end of the motor 5 is provided with two tangent planes, and the notch 311 is matched with the tangent planes, so that the motor 5 can stably drive the valve core 3 to rotate; a plurality of circular rings 321 are arranged on the sealing part 32 in an extending manner at intervals, wherein a sealing ring is embedded between the two circular rings 321, so that the sealing property of the sealing part is improved; the water quantity adjusting part 33 is provided with an opening 331 for adjusting the water quantity, that is, the opening 331 is driven by the motor 5 to be precisely controlled, so as to achieve the purpose of blending the constant temperature water.

Specifically, the valve core 3 can be controlled more accurately by the motor 5; the side wall of the positioning portion 31 is provided with a positioning pin 6, the cover plate 4 is provided with a connecting hole 41 corresponding to the positioning portion 31, the connecting hole 41 is provided with a fan-shaped limiting opening 42, and the positioning pin 6 moves in the fan-shaped limiting opening 42. Namely, the rotation range of the valve core 3 is limited by the matching of the positioning pin 6 and the sector limiting port 42; when the positioning pin 6 moves to the left end of the fan-shaped limiting opening 42, the opening 331 is completely open to the water inlet 11a, and the other water inlet 11b is completely closed.

Further, the opening 331 is formed by cutting along the radial direction of the side wall of the water quantity adjusting portion 33, the cutting depth is equal to the outer circle radius of the water quantity adjusting portion 33, further, the valve core sleeve 2 is provided with through holes 21 corresponding to the two water inlets (11a, 11b), respectively, and the diameter of the through hole 31 is equal to the depth of the opening 331. That is, when the opening 331 is moved to be at the same level as the

water inlets

11a, 11b, the water amount flowing into the

water inlets

11a, 11b is the same.

In this embodiment, in order to improve the stability of the valve core sleeve 3, the valve core sleeve is mounted on the mounting sleeve 1; be provided with draw-in groove 13 on the inner wall of installation sleeve 1, it is a plurality of draw-in groove 13 about the axle center symmetry of installation sleeve 1 sets up, be provided with on the outer wall of case cover 2 with the corresponding buckle 22 of draw-in groove 13 will promptly with the mode of joint the case cover 3 is installed in the installation sleeve 1, subsequent dismouting of being convenient for.

In this embodiment, the present invention measures the water temperature by providing the temperature probe 7 on both the water outlet 12 and one of the water inlets 11a for hot water to flow into, so that the motor 5 can control the flow rate of water more accurately, thereby keeping the water temperature constant.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The electric thermostatic valve is characterized by comprising an installation sleeve, wherein two water inlets are symmetrically arranged on the wall of the installation sleeve about an axis, a water outlet is formed in the lower end of the installation sleeve in an extending mode, a valve core sleeve is arranged in the installation sleeve, a valve core is arranged in the valve core sleeve, a cover plate is fixedly arranged at the upper end of the installation sleeve, a motor is arranged on the cover plate, and the motor is in transmission connection with the valve core.

2. The electrically operated thermostatic valve according to claim 1, wherein: the valve core comprises a positioning part, a sealing part and a water quantity adjusting part, wherein a notch matched with a shaft of the motor is formed in the upper end face of the positioning part, a plurality of circular rings are arranged on the sealing part in an extending mode at intervals, and an opening used for adjusting water quantity is formed in the water quantity adjusting part.

3. An electrically operated thermostatic valve according to claim 2, characterized in that: the side wall of the positioning portion is provided with a positioning pin, the cover plate is provided with a connecting hole corresponding to the positioning portion, a fan-shaped limiting opening is formed in the connecting hole, and the positioning pin moves in the fan-shaped limiting opening.

4. An electrically operated thermostatic valve according to claim 2, characterized in that: the opening is formed by cutting along the radial direction of the side wall of the water quantity adjusting part, and the cutting depth is equal to the excircle radius of the water quantity adjusting part.

5. An electrically operated thermostatic valve according to claim 2, characterized in that: the valve core sleeve is provided with through holes corresponding to the two water inlets respectively, and the diameter of each through hole is the same as the depth of the corresponding opening.

6. The electrically operated thermostatic valve according to claim 1, wherein: the inner wall of the mounting sleeve is provided with a plurality of clamping grooves which are symmetrically arranged relative to the axis of the mounting sleeve, and the outer wall of the valve core sleeve is provided with a buckle corresponding to the clamping grooves.

7. The electrically operated thermostatic valve according to claim 1, wherein: temperature probes are arranged on the water outlet and one water inlet for hot water to flow in.