Integrated water quantity server and gas water heater

Abstract

The utility model provides an integrated water quantity server. The integrated water quantity server comprises a water adjusting assembly, a water inlet shell and a water return switch valve assembly. The water inlet shell comprises a water inlet connector end, a water outlet connector end, a water return connector end and an adjusting connector end. The water adjusting assembly is installed at the adjusting connector end and used for adjusting the water outlet amount of the water outlet connector end. The water return switch valve assembly comprises a water return shell and a water flow switch valve. The water return shell comprises a water return port, a mounting port and a water return interface, and the water return interface is connected with the water return interface end; the water flow switch valve is installed on the installation port and controls connection or disconnection of water flow of the water return shell. According to the integrated water quantity server, the water return structure is integrated, so that the occupied space of parts is reduced, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heaters, in particular to an integrated water volume server and a gas water heater. Background Art

[0002] Ordinary gas water heaters need to release a large section of cold water before hot water can be produced. Zero cold water water heaters have an additional return water circulation system, which can achieve instant heating. There are two main types of water heater return water pipelines: one is to design a separate return water pipeline (i.e. three-pipe zero cold water), and the other is to use the water inlet pipe as a return water pipe for circulating heating (i.e. two-pipe zero cold water). As a true zero cold water technology, the three-pipe zero cold water has a separate return water interface on the water heater body to achieve independent return water circulation.

[0003] Currently, the three-tube zero-cold water on the market achieves zero water temperature interference by adding a water volume servo separately to avoid the influence of sudden changes in water volume on the constant temperature of the water heater. With a water volume servo, when the water pressure decreases, the servo will quickly expand the opening from the default state to increase the water volume; conversely, when the external water pressure increases, the servo will reduce the opening from the default state so that the water temperature of the water heater can quickly reach the water temperature setting requirements. However, adding a water volume servo separately has a complex structure and increases the occupied space. Therefore, a water volume servo with a simple structure and an integrated return water shut-off valve device is urgently needed to reduce the space occupied by components. Utility Model Content

[0004] A first aspect of the utility model provides an integrated water volume servo, comprising:

[0005] Water regulating assembly, water inlet housing and water return switch valve assembly; the water inlet housing includes: water inlet interface end, water outlet interface end, water return interface end and regulating interface end;

[0006] The water regulating component is installed at the regulating interface end to regulate the water output at the water outlet interface end;

[0007] The water return switch valve assembly comprises: a water return housing and a water flow switch valve;

[0008] The water return housing comprises: a water return port, a mounting port and a water return interface, and the water return interface is connected to the water return interface end;

[0009] The water flow switch valve is installed on the installation port, and the water flow switch valve controls the water flow of the return water shell to be turned on or off.

[0010] According to one embodiment of the utility model, it also includes: a water flow rotor and a water flow sensor;

[0011] The water flow rotor is arranged inside the pipe at the water inlet interface end;

[0012] The water flow sensor is arranged on the side wall of the pipe at the water inlet interface end.

[0013] According to one embodiment of the utility model, the water regulating assembly includes: a servo motor and a water regulating valve core;

[0014] The water regulating valve core is arranged in the pipeline of the water inlet shell, one end of the water regulating valve core is connected to the rotating shaft of the servo motor, and the other end is rotatably fixed in the port at the water outlet interface end; the servo motor drives the water regulating valve core to move to change the water flow rate flowing into the water inlet shell from the water inlet interface end.

[0015] According to one embodiment of the utility model, a mounting position is provided in the water inlet housing, and a water flow temperature sensor is provided at the mounting position.

[0016] According to one embodiment of the utility model, it also includes a one-way valve core, which is installed inside the cavity of the return water interface end; or, the one-way valve core is installed inside the cavity of the return water interface.

[0017] According to one embodiment of the utility model, the water return interface has a first connection structure, and the water return interface has a second connection structure corresponding to the first connection structure, and the water return interface is connected to the water return interface by the first connection structure and the second connection structure cooperating with each other;

[0018] A sealing ring and a connecting spring are also provided between the water return interface and the water return interface end; when the water return interface and the water return interface end are connected with the second connecting structure through the first connecting structure, the connecting spring is compressed.

[0019] According to one embodiment of the utility model, the water flow switch valve includes an electric valve assembly and a sealing member; the sealing member is arranged on the surface of the mounting surface of the electric valve assembly facing the mounting port;

[0020] An annular sealing surface is provided inside the installation port, and the sealing member cooperates with the sealing surface to form a water seal of the installation port where the water flow switch valve is installed.

[0021] According to an embodiment of the present invention, the water return port, the installation port and the water return interface are respectively located in different directions of the water return housing.

[0022] The second aspect of the utility model provides a gas water heater, comprising: a gas water heater body, a water pump, an operation display, a main controller and the above-mentioned integrated water volume server;

[0023] The water inlet of the gas water heater body is connected to the water inlet interface, and the water return port of the gas water heater body is connected to the water return port;

[0024] The water inlet port of the water pump is connected to the water outlet interface end, and the water outlet port of the water pump is connected to the cold water inlet of the gas water heater body;

[0025] The water pump, the operation display and the integrated water volume servo are all electrically connected to the main controller.

[0026] The beneficial effects of the utility model are:

[0027] 1. The integrated water volume server with integrated return water structure reduces the space occupied by components and saves the comprehensive cost of components;

[0028] 2. The integrated water volume server adds the return water structure function, which brings greater convenience to the widespread application of three-pipe zero-cold water, and also increases the application functions and scenarios of the water volume server.

[0029] 3. Through the water flow switch valve, the water heater can quickly shut down the water pump and cut off the water flow at the return water interface during the preheating process, avoiding the problem of hot water backflow, truly achieving 0 interference in the water temperature of the water heater, and better achieving a constant temperature effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above-mentioned features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0031] Figure 1 It is a schematic diagram of an integrated water volume server of the utility model;

[0032] Figure 2 This is a cross-sectional view of the integrated water volume server of the utility model;

[0033] Figure 3 is another schematic diagram of the integrated water volume servo of the utility model;

[0034] Figure 4 It is another cross-sectional view of the integrated water volume server of the utility model;

[0035] Figure 5 It is a schematic diagram of the return water switch valve assembly of the utility model;

[0036] Figure 6 It is a cross-sectional view of the return water switch valve assembly of the utility model;

[0037] Figure 7 It is an exploded view of the parts of the integrated water volume servo of the utility model;

[0038] Figure 8 It is a schematic diagram of a gas water heater of the present utility model.

[0039] The reference numerals are described as follows:

[0040] 1. Motor assembly; 10. Water volume servo; 100. Gas water heater body; 101. Water pump; 102. Operation display; 103. Main controller; 11. Servo motor; 12. Water regulating valve core;

[0041] 2. Water inlet housing; 21. Water inlet interface end; 22. Water outlet interface end; 23. Water return interface end;

[0042] 24. Temperature sensor installation position; 3. Water flow rotor; 4. Water flow sensor; 5. One-way valve core; 6. Return water switch valve assembly; 61. Return water housing; 611. Return water port; 612. Installation port; 613. Sealing surface; 614. Return water interface; 62. Water flow switch valve; 621. Seal; 622. Electric valve assembly; 7. Water flow temperature sensor; 8. Connecting retaining ring. DETAILED DESCRIPTION

[0043] The utility model relates to a water volume server with a return water stop valve device, which adopts an integrated return water structure, a water flow sensor and a water volume server, reduces the space occupied by components, increases the application functions and scenarios of the water volume server, and brings greater convenience to the widespread application of three-pipe zero-cold water.

[0044] The utility model improves the water volume servo function. Through the water flow switch valve, the water heater can quickly shut down the water pump and cut off the water flow at the return water interface during the preheating process, avoiding the problem of hot water backflow, improving the constant temperature effect of the zero cold water type water heater as a whole machine, and truly achieving 0 interference in the water temperature of the water heater.

[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0046] The first aspect of the utility model provides an integrated water volume server, comprising: a water regulating component 1, a water inlet shell 2 and a return water switch valve component 6; the water inlet shell 2 includes: a water inlet interface end 21, a water outlet interface end 22, a return water interface end 23 and an adjustment interface end; the water regulating component 1 is installed at the adjustment interface end to adjust the water output of the water outlet interface end 22; the return water switch valve component 6 includes: a return water shell 61 and a water flow switch valve 62; the return water shell 61 includes: a return water port 611, an installation port 612 and a return water interface 614; the return water interface 614 is connected to the return water interface end 23; the water flow switch valve 62 is installed on the installation port 612, and the water flow switch valve 62 controls the water flow of the return water shell 61 to be turned on or off.

[0047] Since the return water interface 614 is directly screwed together with the return water interface end 23 by pipe threads, the integrated water volume server is composed of the water adjustment component 1, the water inlet housing 2 and the return water switch valve component 6 to form an integrated independent structure, which reduces the space occupied by components and saves the comprehensive cost of components.

[0048] Optionally, the integrated water volume servo further includes: a water flow rotor 3 and a water flow sensor 4 ; the water flow rotor 3 is arranged inside the pipe of the water inlet interface end 21 ; the water flow sensor 4 is arranged on the side wall inside the pipe of the water inlet interface end 21 .

[0049] The water regulating assembly 1 comprises: a servo motor 11 and a water regulating valve core 12; the water regulating valve core 12 is arranged in the pipeline of the water inlet housing 2, one end of the water regulating valve core 12 is connected to the rotating shaft of the servo motor 11, and the other end is rotatably fixed in the port of the water outlet interface end 22; the servo motor 11 drives the movement of the water regulating valve core 12 to change the water flow rate flowing from the water inlet interface end 21 into the water inlet housing 2. The servo motor 11 can be a stepping motor.

[0050] A water flow rotor 3 is arranged near the water outlet end of the water inlet pipe, and a water flow sensor 4 is arranged on the outside of the pipe accordingly. The water flow rotor 3 and the water flow sensor 4 are located at the main water flow position of the return water interface end 23 and the water inlet interface end 21.

[0051] As attached Figure 4 As shown, the one-way valve core 5 is installed inside the cavity of the return water pipe close to the return water interface end 23, and the water flow can only flow from the return water interface end 23 to the water outlet interface end of the water volume server.

[0052] Furthermore, the one-way valve core 5 can also be installed inside the cavity of the water return interface 614 , and the water flow can only flow from the water return port 611 to the water return interface 614 .

[0053] Optionally, the water return interface 614 has a first connection structure, and the water return interface 23 has a second connection structure corresponding to the first connection structure, and the water return interface 614 is connected to the water return interface 23 through the cooperation of the first connection structure and the second connection structure; a sealing ring and a connecting spring 8 are also provided between the water return interface 614 and the water return interface end 23; when the water return interface 614 and the water return interface end 23 are connected through the first connection structure and the second connection structure, the connecting spring 8 is compressed. The connecting spring 8 is in a compressed state, providing tension to fix the connection between the water return interface 614 and the water return interface end 23, avoiding loosening due to vibration, and ensuring the water tightness and stability of the connection.

[0054] The first connection structure includes a plug-in part, and the second connection structure includes a socket part. When the plug-in part is inserted into the socket part, a sealing ring is arranged between the plug-in part and the socket part to provide water sealing.

[0055] Optionally, the first connection structure includes a first flange, the second connection structure includes a second flange, and the return water interface 614 and the return water interface end 23 are connected via the first flange and the second flange.

[0056] The connecting clamp 8 is an open ring, and has a plurality of clamping grooves in the circumferential direction. The connecting clamp 8 is sleeved on the outer circumference of the first flange and the second flange, and the first flange and the second flange are embedded in the clamping grooves.

[0057] Optionally, the water flow switch valve 62 includes an electric valve assembly 622 and a seal 621; the seal 621 is arranged on the surface of the installation surface of the electric valve assembly 622 facing the installation port 612; the installation port 612 has an annular sealing surface 613 inside, and the seal 621 cooperates with the sealing surface 613 to form a water seal when the water flow switch valve 62 is installed in the installation port 612.

[0058] Optionally, the water return port 611, the installation port 612 and the water return interface 614 are respectively located in different directions of the water return housing 61. The water return housing 61 is L-shaped, so that the volume of the water return housing 61 is more compact.

[0059] As attached Figure 8 As shown, the second aspect of the utility model provides a gas water heater, comprising: a gas water heater body 100, a water pump 101, an operation display 102, a main controller 103 and the above-mentioned water volume server; the water inlet port of the water pump (101) is connected to the water outlet interface end (22), and the water outlet port of the water pump (101) is connected to the cold water inlet of the gas water heater body (100); the water pump (101), the operation display (102) and the integrated water volume server are all electrically connected to the main controller (103).

[0060] The main controller 103 controls the servo motor 11 to drive the water regulating valve core 12 to move according to the data detected by the water flow rotor 3, the water flow sensor 4 and the water flow temperature sensor 7 to change the water flow rate flowing out of the water outlet interface 22. When the external water pressure decreases, the servo motor 11 pushes the water regulating valve core 12 to move in the direction of increasing the water flow rate; when the external water pressure increases, the servo motor 11 pushes the water regulating valve core 12 to move in the direction of reducing the water flow rate.

[0061] Compared with the prior art, the beneficial effects of the utility model are:

[0062] 1. The integrated water volume server with integrated return water structure reduces the space occupied by components and saves the comprehensive cost of components;

[0063] 2. The integrated water volume server adds the return water structure function, which brings greater convenience to the widespread application of three-pipe zero-cold water, and also increases the application functions and scenarios of the water volume server.

[0064] 3. Through the water flow switch valve, the water heater can quickly shut down the water pump and cut off the water flow at the return water interface during the preheating process, avoiding the problem of hot water backflow, truly achieving 0 interference in the water temperature of the water heater, and better achieving a constant temperature effect.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated water volume server, characterized in that: include: A water regulating assembly (1), a water inlet housing (2) and a water return switch valve assembly (6); The water inlet housing (2) comprises: a water inlet interface end (21), a water outlet interface end (22), a water return interface end (23) and a regulating interface end; The water regulating component (1) is installed at the regulating interface end and is used to regulate the water output of the water outlet interface end (22); The water return switch valve assembly (6) comprises: a water return housing (61) and a water flow switch valve (62); The water return housing (61) comprises: a water return port (611), a mounting port (612) and a water return interface (614), wherein the water return interface (614) is connected to the water return interface end (23); The water flow switch valve (62) is installed on the installation port (612), and the water flow switch valve (62) controls the water flow of the return water housing (61) to be turned on or off.

2. The integrated water volume servo as claimed in claim 1, characterized in that: It also includes: a water flow rotor (3) and a water flow sensor (4); The water flow rotor (3) is arranged inside the pipe at the water inlet interface end (21); The water flow sensor (4) is arranged on the side wall of the pipe at the water inlet interface end (21).

3. The integrated water volume servo as claimed in claim 1, characterized in that: The water regulating component (1) comprises: a servo motor (11) and a water regulating valve core (12); The water regulating valve core (12) is arranged in the pipeline of the water inlet housing (2); one end of the water regulating valve core (12) is connected to the rotating shaft of the servo motor (11), and the other end is rotatably fixed in the port of the water outlet interface end (22); the servo motor (11) drives the water regulating valve core (12) to move so as to change the water flow rate flowing from the water inlet interface end (21) into the water inlet housing (2).

4. The integrated water volume servo as claimed in claim 1, characterized in that: An installation position (24) is provided in the water inlet housing (2), and a water flow temperature sensor (7) is provided at the installation position (24).

5. The integrated water volume servo as claimed in claim 1, characterized in that: It also includes a one-way valve core (5), which is installed inside the cavity of the return water interface end (23); or, the one-way valve core (5) is installed inside the cavity of the return water interface (614).

6. The integrated water volume servo as claimed in claim 5, characterized in that: The water return interface (614) has a first connection structure, and the water return interface end (23) has a second connection structure corresponding to the first connection structure, and the water return interface (614) is connected to the water return interface end (23) through the cooperation between the first connection structure and the second connection structure; A sealing ring and a connecting spring (8) are also provided between the water return interface (614) and the water return interface end (23); when the water return interface (614) and the water return interface end (23) are connected to the second connecting structure via the first connecting structure, the connecting spring (8) is compressed.

7. The integrated water volume servo as claimed in claim 6, characterized in that: The water flow switch valve (62) comprises an electric valve assembly (622) and a sealing member (621); the sealing member (621) is arranged on the surface of the installation surface of the electric valve assembly (622) facing the installation port (612); The installation port (612) has an annular sealing surface (613) inside, and the sealing member (621) cooperates with the sealing surface (613) to form a water seal for the installation port (612) where the water flow switch valve (62) is installed.

8. The integrated water volume servo as claimed in claim 1, characterized in that: The water return port (611), the installation port (612) and the water return interface (614) are respectively located in different directions of the water return housing (61).

9. A gas water heater, characterized in that: include: A gas water heater body (100), a water pump (101), an operation display (102), a main controller (103) and an integrated water quantity servo as claimed in any one of claims 1 to 8; The water inlet of the gas water heater body (100) is connected to the water inlet interface end (21), and the water return port of the gas water heater body (100) is connected to the water return port (611); The water inlet port of the water pump (101) is connected to the water outlet interface end (22), and the water outlet port of the water pump (101) is connected to the cold water inlet of the gas water heater body (100); The water pump (101), the operation display (102) and the integrated water volume servo are all electrically connected to the main controller (103).

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