CN106195424A - Flow regulating device and gas water heater with it - Google Patents

Abstract

The invention discloses a flow regulating device and a gas water heater with the same, wherein the flow regulating device comprises: the water inlet and the water outlet are arranged on the shell; the flow control ring is provided with a flow adjusting hole, and the flow control ring is arranged in the shell in an axially adjustable position and is positioned between the water inlet and the water outlet; the temperature sensing flow adjusting assembly is arranged in the shell and adjusts the opening of the flow adjusting hole according to the water temperature in the shell. The flow regulating device provided by the embodiment of the invention has the advantages of short regulating time, high regulating precision, capability of improving the stability of the water outlet flow and the temperature of the water heater and the like, and the water outlet flow corresponding to the water outlet temperature is adjustable.

Description

Flow regulating device and gas water heater with it

technical field

The invention relates to the technical field of water heaters, in particular to a flow regulating device and a gas water heater with the flow regulating device.

Background technique

Water heaters in the related art usually use stepping motor type water proportional valves, memory alloy type water proportional valves or manual knob opening type regulating valves to control the flow rate of water inflow. Among them, when the stepper motor type water proportional valve is used, due to the existence of a certain control and judgment feedback process, the adjustment of the water flow cannot be in place at one time, and repeated adjustments are required to approach the required water flow, which prolongs the reaction time and leads to water discharge. Fluctuations in flow and temperature are large; when memory alloy water proportional valves are used, due to the limitation of the characteristics of memory alloys, the water flow rate is unstable during adjustment, resulting in low comfort in use; when using manual knob opening control valves , because it is difficult to grasp the size of the opening, the outlet water temperature is difficult to be accurate to the required temperature.

Contents of the invention

The present invention aims to solve one of the above-mentioned technical problems in the related art at least to a certain extent. For this reason, the present invention proposes a flow regulating device, which has the advantages of short adjustment time, high adjustment accuracy, and can improve the stability of the water outlet flow and temperature of the water heater, and the outlet water flow corresponding to the outlet water temperature can be adjusted.

The invention also proposes a gas water heater with the flow regulating device.

In order to achieve the above object, according to the embodiment of the first aspect of the present invention, a flow regulating device is proposed. The flow regulating device includes: a housing, on which a water inlet and a water outlet are arranged; a flow control ring, the A flow regulating hole is provided on the flow control ring, and the flow control ring is installed in the casing in an adjustable position in the axial direction of the casing and is located between the water inlet and the water outlet; A temperature-sensitive flow regulating component, the temperature-sensing flow regulating component is arranged in the casing, and the temperature-sensing flow regulating component adjusts the opening of the flow regulating hole according to the water temperature in the casing.

The flow adjustment device according to the embodiment of the present invention has the advantages of short adjustment time, high adjustment accuracy, and can improve the stability of the outlet water flow and temperature of the water heater, and the outlet water flow corresponding to the outlet water temperature can be adjusted.

In addition, the flow regulating device according to the embodiment of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the housing is provided with internal threads and the flow control ring is provided with external threads that cooperate with the internal threads, and the flow control ring is threadedly installed in the housing.

According to an embodiment of the present invention, a position adjustment concave hole is provided on the end surface of the flow control ring facing the outside of the housing.

According to an embodiment of the present invention, the water inlet and the water outlet are respectively provided at both ends of the housing, and side water inlets are provided on the side walls of the housing.

According to an embodiment of the present invention, there are multiple side water inlets, each of the side water inlets extends along the axial direction of the housing, and multiple side water inlets extend along the circumference of the housing. to the interval setting.

According to an embodiment of the present invention, the flow adjustment device further includes a support for stopping the temperature-sensitive flow adjustment assembly in the housing, the support is provided with buckles, and the support It is arranged at the water outlet and the buckle is engaged in the side water inlet.

According to an embodiment of the present invention, the temperature-sensitive flow adjustment assembly includes: a stroke sleeve, the stroke sleeve is movably arranged in the housing in the axial direction of the housing and is connected with the flow adjustment The hole is matched to adjust the opening of the flow regulating hole; according to the temperature-sensing element with variable temperature and volume, the temperature-sensing element is arranged in the housing and connected with the stroke sleeve in transmission, and the temperature-sensing element passes through Self-expansion pushes the stroke sleeve to the flow control ring; the return elastic member is arranged between the stroke sleeve and the housing and pushes the stroke sleeve to the The temperature sensing element.

According to an embodiment of the present invention, the flow regulating hole is a tapered hole whose cross-sectional area gradually increases from the water outlet to the water inlet, and a flow regulating head is provided on the stroke sleeve, and the stroke The sleeve adjusts the opening of the flow regulating hole by changing the position of the flow regulating head in the flow regulating hole.

According to an embodiment of the present invention, the temperature-sensing flow regulating assembly further includes: a temperature-sensing housing, the temperature-sensing element is arranged in the temperature-sensing housing and a through hole is provided on the temperature-sensing housing; a flexible pad, The flexible pad is arranged in the temperature sensing shell and is located between the temperature sensing element and the through hole; a transmission rod, one end of the transmission rod is against the stroke sleeve and the other end passes through the The through hole abuts against the flexible pad.

According to an embodiment of the present invention, the stroke sleeve has an inner cavity, the surface of the inner cavity facing the temperature sensing element is open, and a positioning groove is provided on the bottom wall of the inner cavity, and the transmission rod The one end is provided with a positioning head fitted in the positioning groove.

According to an embodiment of the present invention, the outer wall of the stroke sleeve is provided with a sleeve boss and the inner wall of the housing is provided with a housing boss, the return elastic member is a spring, and the return elastic member The sleeve is sleeved on the stroke sleeve, and the two ends respectively abut against the boss of the sleeve and the boss of the housing.

According to an embodiment of the present invention, a plurality of supporting ribs are provided on the outer wall of the stroke sleeve, each of the supporting ribs extends along the axial direction of the stroke sleeve, and a plurality of the supporting ribs extend along the The stroke sleeves are arranged at intervals in the circumferential direction, and the reset elastic member is sleeved on a plurality of the support ribs.

According to an embodiment of the present invention, the temperature sensing element is paraffin.

The embodiment according to the second aspect of the present invention provides a gas water heater, which includes the flow regulating device according to the embodiment of the first aspect of the present invention.

The gas water heater according to the embodiment of the present invention has the advantages of stable outlet water flow and temperature, and high usability by using the flow regulating device according to the embodiment of the first aspect of the present invention.

Description of drawings

FIG. 1 is a cross-sectional view of a flow regulating device according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a flow regulating device according to an embodiment of the present invention, wherein the temperature sensing element is in an expanded state.

Fig. 3 is an exploded view of a flow regulating device according to an embodiment of the present invention.

Reference signs:

Flow regulating device 10,

Housing 100, water inlet 110, water outlet 120, side water inlet 130, housing boss 140,

Flow control ring 200, flow regulating hole 210, regulating concave hole 220,

Temperature-sensing flow adjustment assembly 300, stroke sleeve 310, flow adjustment head 311, inner cavity 312, positioning groove 313, sleeve boss 314, support rib 315, temperature-sensing member 320, reset elastic member 330, temperature-sensing housing 340, Flexible pad 350, transmission rod 360, positioning head 361,

Support 400, buckle 410.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The flow regulating device 10 according to the embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1-3 , a flow regulating device 10 according to an embodiment of the present invention includes a housing 100 , a flow control ring 200 and a temperature-sensitive flow regulating assembly 300 .

The casing 100 is provided with a water inlet 110 and a water outlet 120 . The flow control ring 200 is provided with a flow regulating hole 210, and the flow control ring 200 is installed in the housing 100 in an adjustable position in the axial direction of the housing 100, and the flow control ring 200 is located between the water inlet 110 and the water outlet 120 . The temperature-sensing flow regulating assembly 300 is disposed in the casing 100 , and the temperature-sensing flow regulating assembly 300 adjusts the opening of the flow regulating hole 210 according to the water temperature in the casing 100 , thereby regulating the water flow. For example, when the temperature of the water in the casing 100 is low, the opening of the flow regulating hole 210 is reduced, thereby controlling the water flow to be small. When the temperature of the water in the housing 100 is high, the opening of the flow regulating hole 210 is increased to control the water flow to be relatively large.

According to the flow regulating device 10 of the embodiment of the present invention, by setting the flow control ring 200 and the temperature-sensitive flow regulating assembly 300, the water flow can be controlled according to the water temperature, thereby improving the stability of the water flow and temperature of the gas water heater, and since repeated judgments are not required The calculation shortens the reaction time, the flow adjustment accuracy is high, the water flow and temperature fluctuations of the gas water heater are small, and the use comfort is high.

Moreover, the position of the flow control ring 200 in the axial direction of the housing 100 is adjustable, so that during use, the relative position of the flow adjustment hole 210 and the temperature-sensitive flow adjustment assembly 300 can be adjusted by adjusting the position of the flow control ring 200 , so that the temperature-sensing flow regulating assembly 300 can adjust the opening degree of the flow regulating hole 210 differently at the same temperature, so that the outlet water temperature and the outlet water flow rate correspond one-to-one to meet the different needs of users.

Therefore, the flow adjustment device 10 according to the embodiment of the present invention has the advantages of short adjustment time, high adjustment accuracy, and can improve the stability of the outlet water flow and temperature of the water heater, and the outlet water flow corresponding to the outlet water temperature is adjustable.

A flow regulating device 10 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1-3 , a flow regulating device 10 according to an embodiment of the present invention includes a housing 100 , a flow control ring 200 and a temperature-sensitive flow regulating assembly 300 .

In some specific embodiments of the present invention, the housing 100 is provided with an internal thread and the flow control ring 200 is provided with an external thread matching the internal thread, and the flow control ring 200 is threadedly installed in the housing 100, thereby The flow control ring 200 can be stably and detachably installed in the housing 100 , and the position of the flow control ring 200 in the axial direction of the housing 100 can be adjusted by rotating the flow control ring 200 .

Further, as shown in FIG. 3 , a position adjustment concave hole 220 is provided on the end surface of the flow control ring 200 facing the outside of the casing 100 . For example, the flow control ring 200 is disposed adjacent to the water inlet 110 , and the end surface of the flow control ring 200 facing outside the water inlet 110 is provided with two adjustment concave holes 220 opposite to each other in the radial direction of the flow control ring 200 . Therefore, it is convenient for the user to rotate the flow control ring 200 from the outside with a tool to adjust the position of the flow control ring 200 in the axial direction of the housing 100 .

In some specific examples of the present invention, as shown in FIGS. 1-3 , the water inlet 110 and the water outlet 120 are respectively provided at both ends of the housing 100, and the side wall of the housing 100 is provided with a side water inlet 130, The flow control ring 200 is located between the side water inlet 130 and the water outlet 120 . Thus, the water intake of the flow regulating device 10 can be more diversified, thereby expanding the application range of the flow regulating device 10 . Specifically, the flow regulating device 10 can be inserted into a straight pipe to allow water to enter and exit at both ends, and the flow regulating device 10 can also be inserted into a three-way pipe to bypass water in and exit at the end, which can meet different water inlet structure requirements.

Further, as shown in FIG. 3 , there are multiple side water inlets 130 , each side water inlet 130 extends along the axial direction of the housing 100 , and multiple side water inlets 130 are arranged at intervals along the circumference of the housing 100 . Therefore, on the one hand, the water intake from the side of the housing 100 can be increased, and on the other hand, water can be admitted to all parts of the housing 100 in the circumferential direction, so as to further increase the diversity of water intake and facilitate the installation of the flow regulating device 10. Install.

Optionally, as shown in FIGS. 1-3 , the flow regulating device 10 further includes a support 400 on which a buckle 410 is provided. The support 400 is arranged at the water outlet 120 and the buckle 410 is engaged on the side part of the water inlet 130, so that the temperature-sensitive flow regulating assembly 300 is stopped in the housing 100, and the support 400 can be inserted or pulled out from one end of the water outlet 120 of the housing 100, which is convenient for disassembly and assembly.

In some specific embodiments of the present invention, as shown in FIGS. 1-3 , the temperature-sensing flow adjustment assembly 300 includes a stroke sleeve 310 , a temperature-sensing element 320 and a reset elastic element 330 .

The travel sleeve 310 is movably disposed in the housing 100 in the axial direction of the housing 100 , and the travel sleeve 310 cooperates with the flow regulating hole 210 to adjust the opening of the flow regulating hole 210 . The temperature sensing element 320 is variable in volume according to temperature, for example, the temperature sensing element 320 is paraffin. The temperature sensing element 320 is arranged in the housing 100 , and the temperature sensing element 320 is in transmission connection with the stroke sleeve 310 , and the temperature sensing element 320 pushes the stroke sleeve 310 to the flow control ring 200 through its own expansion. The return elastic member 330 is disposed between the travel sleeve 310 and the housing 100 and pushes the travel sleeve 310 towards the temperature sensing member.

When the water temperature of the casing 100 is high, the temperature sensing element 320 expands and pushes the stroke sleeve 310 to move toward the flow control ring 200, and the opening of the flow regulating hole 210 increases, thereby increasing the water flow. When the water temperature of the housing 100 is low, the temperature sensing element 320 contracts, and the stroke sleeve 310 moves toward the temperature sensing element 320 under the action of the reset elastic element 330, and the opening of the flow regulating hole 210 decreases, thereby reducing the water flow rate. .

Optionally, as shown in Figures 1-3, the flow regulating hole 210 is a tapered hole whose cross-sectional area gradually increases from the water outlet 120 to the water inlet 110, and the stroke sleeve 310 is provided with a tapered flow regulating hole. The flow adjustment head 311 matched with the hole 210, when the stroke sleeve 310 moves, the flow adjustment head 311 moves relative to the flow control ring 200, and the position of the flow adjustment head 311 in the flow adjustment hole 210 changes, thereby changing the flow rate of the flow adjustment head 311. Adjust the position inside the hole 210 to adjust the opening of the flow regulating hole 210 .

Specifically, when the temperature of the water in the housing 100 is high, the temperature sensing element 320 expands and pushes the stroke sleeve 310 to move toward the flow control ring 200, and the flow regulating head 311 moves toward the larger diameter part of the flow regulating hole 210, and the flow The opening of the regulating hole 210 increases, thereby increasing the water flow.

When the water temperature of the housing 100 is low, the temperature sensing element 320 contracts, and the stroke sleeve 310 moves toward the temperature sensing element 320 under the action of the return elastic element 330, and the flow regulating head 311 faces the part with a smaller diameter of the flow regulating hole 210 Moving, the opening of the flow regulating hole 210 decreases, thereby reducing the water flow.

In some specific examples of the present invention, as shown in FIGS. 1-3 , the temperature-sensing flow adjustment assembly 300 further includes a temperature-sensing housing 340 , a flexible pad 350 and a transmission rod 360 .

The temperature sensing element 320 is disposed in the temperature sensing shell 340 and the temperature sensing shell 340 is provided with a through hole. The flexible pad 350 is disposed in the temperature-sensing housing 340 and between the temperature-sensing element 320 and the through hole. One end of the transmission rod 360 abuts against the travel sleeve 310 , and the other end of the transmission rod 360 passes through the through hole and abuts against the flexible pad 350 . In this way, the installation and positioning of the temperature sensing element 320 can be realized, the expansion and deformation of the temperature sensing element 320 can be transmitted to the stroke sleeve 310 by the transmission rod 360 , and the stability of power transmission can be improved by providing the flexible pad 350 .

Those skilled in the art need to understand that, in order for the temperature sensing element 320 to accurately sense the water temperature in the casing 100 , the temperature sensing shell 340 , the flexible pad 350 and the transmission rod 360 are all heat conducting elements.

Advantageously, as shown in Figures 1-3, the stroke sleeve 310 has an inner cavity 312, the surface of the inner cavity 312 facing the temperature sensing element 320 is open, and the bottom wall of the inner cavity 312 is provided with a positioning groove 313, and the transmission rod The one end of 360 is provided with a positioning head 361 , and the positioning head 361 fits in the positioning groove 313 . In this way, the stability of the cooperation between the transmission rod 360 and the travel sleeve 310 can be improved, and the one end of the transmission rod 360 can be prevented from moving in the radial direction of the bottom wall of the inner chamber 312, thereby improving the stability of the transmission.

In some specific embodiments of the present invention. As shown in Figures 1-3, the outer wall of the stroke sleeve 310 is provided with a sleeve boss 314 and the inner wall of the housing 100 is provided with a housing boss 140, the reset elastic member 330 is a spring, and the reset elastic member 330 sets It is arranged on the stroke sleeve 310 , and the two ends of the return elastic member 330 respectively abut against the sleeve boss 314 and the housing boss 140 to realize the installation and positioning of the return elastic member 330 .

Further, as shown in FIG. 3 , a plurality of support ribs 315 are provided on the outer wall of the stroke sleeve 310 , each support rib 315 extends along the axial direction of the stroke sleeve 310 , and the plurality of support ribs 315 extend along the stroke sleeve. 310 are set at intervals in the circumferential direction, and the reset elastic member 330 is sleeved on a plurality of support ribs 315, so that the expansion and contraction of the reset elastic member 330 can be smoother to ensure that the elasticity of the reset elastic member 330 can reset the stroke sleeve 310, In addition, the contact area between the return elastic member 330 and the stroke sleeve 310 can be reduced, thereby reducing wear.

A gas water heater according to an embodiment of the present invention is described below. The gas water heater according to the embodiment of the present invention includes the flow regulating device 10 according to the above-mentioned embodiment of the present invention.

The gas water heater according to the embodiment of the present invention has the advantages of stable outlet water flow and temperature, and high usability by using the flow regulating device 10 according to the above-mentioned embodiment of the present invention.

Other configurations and operations of the gas water heater according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (14)

1. a flow regulator, it is characterised in that including:

Housing, described housing is provided with water inlet and outlet；

Flow-control ring, described flow-control ring is provided with flow regulating orifices, axial at described housing of described flow-control ring In upper position is adjustably arranged on described housing and between described water inlet and described outlet；

Temperature-sensitive Flow-rate adjustment assembly, described temperature-sensitive flow component is located in described housing, described temperature-sensitive Flow-rate adjustment assembly according to The aperture of flow regulating orifices described in lower water temperature in described housing.

Flow regulator the most according to claim 1, it is characterised in that described housing is provided with female thread and described stream Amount controls ring and is provided with and the external screw thread of described screw-internal thread fit, and described flow-control ring is threadably mounted in described housing.

Flow regulator the most according to claim 2, it is characterised in that described flow-control ring towards described housing Outer end face is provided with position adjustments shrinkage pool.

Flow regulator the most according to claim 1, it is characterised in that described water inlet and described outlet set respectively At the two ends of described housing, the sidewall of described housing is provided with sidepiece water inlet.

Flow regulator the most according to claim 4, it is characterised in that described sidepiece water inlet is multiple, Mei Gesuo State sidepiece water inlet to be provided at circumferentially spaced along the axially extending of described housing and multiple described sidepiece water inlet along described housing.

Flow regulator the most according to claim 4, it is characterised in that also include for by described temperature-sensitive Flow-rate adjustment Assembly backstop bearing in described housing, described bearing is provided with buckle, and described bearing is located at described water outlet and described Buckle is fastened in described sidepiece water inlet.

7. according to the flow regulator according to any one of claim 1-6, it is characterised in that described temperature-sensitive Flow-rate adjustment group Part includes:

Stroke sleeve, in described stroke sleeve is movably arranged at described housing in the axial direction of described housing and with described flow Adjustment hole coordinates to regulate the aperture of described flow regulating orifices；

According to the temperature sensibility of temperature variable volume, connect in described temperature sensibility is located at described housing and with described stroke sleeve transmission Connecing, described temperature sensibility pushes described stroke sleeve to described flow-control ring by the expansion of self；

Return springs, described return springs is located between described stroke sleeve and described housing and by normal for described stroke sleeve Push described temperature sensibility to.

Flow regulator the most according to claim 7, it is characterised in that described flow regulating orifices is that cross-sectional area is by institute Stating the bellmouth that outlet to described water inlet is gradually increased, described stroke sleeve is provided with Flow-rate adjustment head, described stroke set Cylinder is by changing described Flow-rate adjustment head position in described flow regulating orifices to regulate the aperture of described flow regulating orifices.

Flow regulator the most according to claim 7, it is characterised in that described temperature-sensitive Flow-rate adjustment assembly also includes:

Temperature-sensitive shell, described temperature sensibility is located in described temperature-sensitive shell and described temperature-sensitive shell is provided with through hole；

Pad, in described pad is located at described temperature-sensitive shell and between described temperature sensibility and described through hole；

Drive link, one end of described drive link is against on described stroke sleeve and the other end is against described flexibility through described through hole On pad.

Flow regulator the most according to claim 9, it is characterised in that described stroke sleeve has inner chamber, described interior The surface towards described temperature sensibility in chamber is opened wide and the diapire of described inner chamber is provided with locating slot, described one end of described drive link It is provided with the positioning head coordinated in described locating slot.

11. flow regulators according to claim 7, it is characterised in that the outer wall of described stroke sleeve is provided with set The inwall of cylinder boss and described housing is provided with housing boss, and described return springs is spring, and described return springs is sheathed On described stroke sleeve and two ends are against on described sleeve boss and described housing boss respectively.

12. flow regulators according to claim 11, it is characterised in that the lateral wall of described stroke sleeve is provided with Multiple brace rods, each described brace rod is along the axially extending of described stroke sleeve and multiple described brace rod along described stroke set Being provided at circumferentially spaced of cylinder, described return springs is set on multiple described brace rod.

13. flow regulators according to claim 7, it is characterised in that described temperature sensibility is paraffin.

14. 1 kinds of gas heaters, it is characterised in that include filling according to Flow-rate adjustment according to any one of claim 1-13 Put.