Water inlet structure and gas water heater with same

Abstract

A water inlet structure comprises a heat exchange device, a water inlet connector used for being connected with an external liquid source and a water channel used for conveying liquid to the heat exchange device from the water inlet connector, and a water channel opening and closing structure is arranged on the water channel to open or close the water channel. The utility model provides a water inlet structure which enables a user to obtain liquid with required temperature in real time and meets the use requirements of the user. The utility model further discloses a gas water heater with the water inlet structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas water heaters, and particularly relates to a water inlet structure and a gas water heater with the water inlet structure. Background Art

[0002] Gas water heaters are one of the indispensable household products in our current life. They use gas as energy and heat through combustion. The heat of gas combustion is transferred to the cold water flowing through the heat exchanger through the heat exchanger to achieve the purpose of preparing hot water. With the continuous progress of society and the continuous improvement of people's lives, consumers' requirements for the appearance of gas water heaters are also increasing. Gas water heaters with large-screen displays are deeply loved by consumers because of their unique and novel appearance.

[0003] The water inlet structure of conventional gas water heaters, such as Figure 1 As shown, the gas water heater includes a heat exchanger (A1), and the water inlet structure consists of a water inlet pipe body (A2) and a water inlet connector (A3), wherein the water inlet connector (A3) is installed at the bottom of the gas water heater and is connected to an external water source, one end of the water inlet pipe body (A2) is connected to the water inlet connector (A3), and the other end is connected to the heat exchanger (A1), and the external water source and the heat exchanger (A1) are connected through the water inlet pipe body (A2) and the water inlet connector (A3) to realize the supply of water from the external water source to the gas water heater, and in order to maintain a stable water pressure in the gas water heater, when water enters the gas water heater, the heated water is simultaneously discharged from the gas water heater. The problem is that, in the water inlet structure of the above structure, when the gas water heater stops working, the heat exchanger (A1) is closed and stops heating the water, but water continues to be transported into the heat exchanger (A1), and part of the water is retained between the heat exchanger and the water outlet of the gas water heater. When the gas water heater starts working again, the heat exchanger (A1) works, and the water at this position cannot be heated by the heat exchanger (A1). When the gas water heater is drained, the water at this position is first discharged from the water outlet of the gas water heater. The user cannot immediately obtain water of the required temperature, which cannot meet the user's usage needs, resulting in a poor user experience of the gas water heater.

[0004] Therefore, further improvement is needed. Utility Model Content

[0005] The purpose of the present invention is to overcome at least one of the deficiencies of the above-mentioned prior art and to provide a water inlet structure and a gas water heater having the water inlet structure, which can enable users to instantly obtain liquid at the required temperature and meet the user's usage needs.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the embodiment of the present utility model is:

[0007] A water inlet structure includes a heat exchange device, a water inlet joint for connecting to an external liquid source, and a water channel for transporting liquid from the water inlet joint to the heat exchange device. The water channel is provided with a water channel opening and closing structure to open or close the water channel.

[0008] The waterway opening and closing structure includes a water inlet body, an opening and closing component and a driving component. The inner cavity of the water inlet body forms a waterway channel, and the waterway channel extends along the length direction of the water inlet body. The head end of the waterway channel is located at the water inlet end of the water inlet body, and the end end of the waterway channel is located at the water outlet end of the water inlet body. The opening and closing component is arranged in the water inlet body and located in the waterway channel. The driving component is arranged on the water inlet body and is transmission-connected to the opening and closing component. The opening and closing component is rotated by the driving component to open or close the waterway channel.

[0009] The water inlet main body is provided with an opening and closing mounting portion for installing an opening and closing component, and the opening and closing mounting portion is located between the head end and the end end of the water channel. The opening and closing component is cylindrical or spherical, and the horizontal projection of the opening and closing mounting portion is circular, and its diameter is equivalent to the diameter of the opening and closing component. The side wall of the opening and closing component is provided with a water hole for conducting the water channel.

[0010] The water inlet body is provided with a drive mounting portion for mounting a drive component. The drive mounting portion is arranged on the side wall of the water inlet body. The drive mounting portion is provided with a drive hole connected to the water channel. The drive component includes a drive mounting plate and a drive shaft. When the drive component is installed on the water inlet body, the drive mounting plate is fixed to the drive mounting portion, and the drive shaft extends into the water channel through the drive hole and is transmission-connected to the opening and closing component.

[0011] A mounting structure is provided between the driving component and the water inlet body, and the driving component is installed on the water inlet body through the mounting structure. The mounting structure includes a mounting through hole provided on the driving component, a mounting screw hole provided on the water inlet body, and a fastening component. There are several mounting through holes and they are arranged circumferentially on the driving mounting plate. The mounting screw holes correspond to the mounting through holes and are provided on the periphery of the driving mounting part. The fastening component and the mounting screw holes are screwed together.

[0012] The water inlet structure also includes a water volume monitoring component for monitoring the liquid flow rate. The water volume monitoring component is arranged on the side wall of the water inlet body and is located below the driving component. The water inlet body is provided with a water volume monitoring mounting portion for being installed on the water volume monitoring component. The water volume monitoring mounting portion is provided with a first monitoring hole connected to the waterway channel. The detection end of the water volume monitoring component extends into the waterway channel through the first monitoring hole.

[0013] The water inlet structure also includes a temperature monitoring component for monitoring the liquid temperature. The temperature monitoring component is arranged on the side wall of the water inlet body and is located below the driving component. The water inlet body is provided with a temperature monitoring mounting portion for being installed on the temperature monitoring component. The temperature monitoring mounting portion is provided with a second monitoring hole connected to the waterway channel. The detection end of the temperature monitoring component extends into the waterway channel through the second monitoring hole.

[0014] The water inlet structure also includes a water pipe assembly, which is arranged between the water inlet body and the heat exchange device. The inner cavity of the water inlet body and the inner cavity of the water pipe assembly together form a water channel. The water channel extends along the length direction of the water inlet body and the length direction of the water pipe assembly. The head end of the water channel is located at the water inlet end of the water inlet body, and the end end of the water channel is located at the water outlet end of the water pipe assembly.

[0015] The water pipe assembly includes a first water pipe and a second water pipe, the heat exchange device includes a preheating mechanism, the preheating mechanism includes a first heat exchange tube, a second heat exchange tube, and a preheating water outlet pipe, the inner cavity of the first water pipe is connected to the inner cavity of the first heat exchange tube, the inner cavity of the second water pipe is connected to the inner cavity of the second heat exchange tube, the inner cavity of the first heat exchange tube and the inner cavity of the second heat exchange tube are both connected to the inner cavity of the preheating water outlet pipe, and the second water pipe is provided with a switch component for opening or closing the inner cavity of the second water pipe.

[0016] A gas water heater comprises a shell, a control component and a water inlet structure. The control component and the water inlet structure are both arranged in the shell, and the water inlet structure is electrically connected to the control component.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model adopts the water inlet structure of the above-mentioned technical solution, and the water channel opening and closing structure can open or close the water channel according to the working status of the heat exchange device, thereby preventing part of the liquid from being unable to be heated due to staying outside the water outlet of the heat exchange device, ensuring that the user can immediately obtain the liquid of the required temperature, meeting the user's usage needs, and improving the user experience to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a water inlet structure installed in a gas water heater in the prior art.

[0020] Figure 2 This is a schematic diagram of a water inlet structure installed in a gas water heater according to an embodiment of the present invention.

[0021] Figure 3 This is a structural schematic diagram of the waterway opening and closing structure of an embodiment of the present utility model.

[0022] Figure 4This is a structural schematic diagram of the waterway opening and closing structure of an embodiment of the present utility model.

[0023] Figure 5 This is a cross-sectional view of the waterway opening and closing structure in an open state according to an embodiment of the present invention.

[0024] Figure 6 This is an exploded view of the waterway opening and closing structure of one embodiment of the utility model.

[0025] Figure 7 This is an exploded view of the waterway opening and closing structure of one embodiment of the utility model.

[0026] Figure 8 This is a cross-sectional view of a water inlet body according to an embodiment of the present invention.

[0027] Figure 9 This is a cross-sectional view of the waterway opening and closing structure in a closed state according to one embodiment of the present invention.

[0028] Figure 10 This is a cross-sectional view of a preheating mechanism according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0030] See also Figure 2-10The water inlet structure includes a heat exchange device, a water inlet joint 2 for connecting an external liquid source, and a water channel 3 for transporting liquid from the water inlet joint 2 to the heat exchange device. A water channel opening and closing structure 4 is provided on the water channel 3 to open or close the water channel 3. In this embodiment, the water channel opening and closing structure 4 includes a water inlet body 41, an opening and closing component 42, and a driving component 43. The water inlet body 41 is straight and made of plastic material. Its inner cavity forms the water channel 3. The water channel 3 extends along the length direction of the water inlet body 41. The head end of the water channel 3 is located at the water inlet body 41. The water inlet end and the end of the water channel 3 are located at the water outlet end of the water inlet body 41. The water inlet end of the water inlet body 41 is located at the lower end of the water inlet body 41, and the water outlet end of the water inlet body 41 is located at the upper end of the water inlet body 41. The opening and closing component 42 is arranged in the water inlet body 41 and is located in the water channel 3. It is preferably cylindrical and made of metal material or rubber material. A water hole 420 for conducting the water channel 3 is provided on the side wall of the opening and closing component 42. The axis of the water hole 420 is coincided with the axis of the water channel 3 by rotating the opening and closing component 42 to open the water channel 3, or by rotating The opening and closing component 42 is rotated so that the axis of the water hole 420 is perpendicular to the axis of the water channel 3 to close the water channel 3. The driving component 43 is provided on the water inlet body 41 and is in transmission connection with the opening and closing component 42, which is preferably an electromagnetic switch valve. The opening and closing component 42 is rotated by the driving component 43 to open or close the water channel 3. Specifically, when the heat exchange device is closed and stops heating the liquid, the driving component 43 drives the opening and closing component 42 to rotate and close the water channel 3 to prevent the liquid from the external liquid source from entering the heat exchange device through the water channel 3, so that the liquid stops flowing and Part of the liquid stays in the heat exchange device and stops being output outside the heat exchange device. When the heat exchange device starts working again, the liquid in the heat exchange device is reheated, and the driving component 43 drives the opening and closing component 42 to rotate and open the water channel 3 to allow liquid from the external liquid source to enter the heat exchange device through the water channel 3. The liquid flows again and flows out of the heat exchange device, avoiding the situation where part of the liquid cannot be heated due to staying outside the water outlet of the heat exchange device, ensuring that the user can immediately obtain the liquid at the required temperature, meeting the user's usage needs, and improving the user experience to a certain extent.

[0031] Furthermore, an opening and closing mounting portion 410 for mounting an opening and closing component 42 is provided on the water inlet main body 41. Specifically, in the present embodiment, the opening and closing mounting portion 410 is located between the head end and the end end of the waterway channel 3. The horizontal projection shape of the opening and closing mounting portion 410 is circular and corresponds to the cross-sectional shape of the opening and closing component 42. The diameter size of the opening and closing mounting portion 410 is the same as the diameter size of the opening and closing component 42, so that the opening and closing component 42 can be properly installed in the opening and closing mounting portion 410. Through the above technical solution, when the opening and closing component 42 is placed in the waterway channel 3, it can fully contact with the water inlet main body 41 without affecting the rotation of the opening and closing component 42, and can improve the blocking effect of the opening and closing component 42 on the waterway channel 3 to a certain extent, which can be understood by those skilled in the art.

[0032] Furthermore, a driving mounting portion 411 for mounting a driving component 43 is provided on the water inlet main body 41. Specifically, in this embodiment, the driving mounting portion 411 is arranged on the side wall of the water inlet main body 41 and corresponds to the opening and closing mounting portion 410. A driving hole 412 communicating with the waterway channel 3 is provided on the driving mounting portion 411. The opening and closing component 42 can be installed in the starting mounting portion through the driving hole 412. The driving component 43 includes a driving mounting plate 430 and a driving shaft 431. The driving mounting portion 411 is square and is arranged at the fixed end of the driving component 43 and is used to fix the driving component 43 on the water inlet main body 41. The driving shaft 431 is arranged at the movable end of the driving component 43 and is used to drive the opening and closing component 42. When the driving component 43 is installed on the water inlet main body 41, the driving mounting plate 430 is fixed on the driving mounting portion 411, and the driving shaft 431 passes through the driving hole 4 12 extends into the waterway channel 3 and is connected to the opening and closing component 42 through a flat key and keyway structure. Specifically, a mounting structure is provided between the driving component 43 and the water inlet body 41, and the driving component 43 is installed on the water inlet body 41 through the mounting structure. In this embodiment, the mounting structure includes a mounting through hole 432, a mounting screw hole 413 and a fastening component. The number of the mounting through holes 432 is preferably four and they are circumferentially arranged on the four corners of the driving mounting plate 430. The number of the mounting screw holes 413 corresponds to the mounting through holes 432, which are preferably four and are arranged on the periphery of the driving mounting portion 411. The fastening component is preferably a screw. When the fastening component passes through the mounting through hole 432, it is screwed to the mounting screw hole 413. Through the above technical solution, the driving component 43 is installed on the water inlet body 41 and drives the opening and closing component 42 to rotate, which can be understood by those skilled in the art.

[0033] Furthermore, the water inlet structure also includes a water quantity monitoring component 5. Specifically, in this embodiment, the water quantity monitoring component 5 is arranged on the side wall of the water inlet body 41 and is located below the driving component 43. The water inlet body 41 is provided with a water quantity monitoring mounting portion 414 for mounting on the water quantity monitoring component 5. The water quantity monitoring mounting portion 414 is arranged on the side wall of the water inlet body 41 and is located below the driving mounting portion 411. The water quantity monitoring mounting portion 414 is provided with a first monitoring hole 415 connected to the water channel 3. When the water quantity monitoring component 5 is installed on the water quantity monitoring mounting portion 414, the detection end of the water quantity monitoring component 5 extends into the water channel 3 through the first monitoring hole 415 to monitor the liquid flow. Through the above technical solution, the control panel of the gas water heater can monitor the liquid flow in the water channel 3 in real time and make corresponding control of the water inlet structure, which can be understood by those skilled in the art.

[0034] Furthermore, the water inlet structure also includes a temperature monitoring component 6. Specifically, in this embodiment, the temperature monitoring component 6 is arranged on the side wall of the water inlet body 41 and is located below the water volume monitoring component 5. The water inlet body 41 is provided with a temperature monitoring mounting portion 416 for mounting on the temperature monitoring component 6. The temperature monitoring mounting portion 416 is arranged on the side wall of the water inlet body 41 and is located below the water volume monitoring mounting portion 414. The temperature monitoring mounting portion 416 is provided with a second monitoring hole 417 connected to the water channel 3. When the temperature monitoring component 6 is installed on the temperature monitoring mounting portion 416, the detection end of the temperature monitoring component 6 extends into the water channel 3 through the second monitoring hole 417 to monitor the liquid temperature. Through the above technical solution, the control panel of the gas water heater can monitor the liquid temperature in the water channel 3 in real time and make corresponding control of the heat exchange device, which can be understood by those skilled in the art.

[0035] Furthermore, the water inlet structure also includes a water pipe assembly, which is arranged between the water inlet body 41 and the heat exchange device. Specifically, in this embodiment, the water pipe assembly includes a first water pipe 71 and a second water pipe 72. The heat exchange device includes a preheating mechanism 11 and a heating mechanism. The preheating mechanism 11 includes a first heat exchange pipe 110, a second heat exchange pipe 111, and a preheating outlet pipe 112. The inner cavity of the water inlet body 41, the inner cavity of the first water pipe 71, and the inner cavity of the second water pipe 72 respectively form a water channel 3. The water channel 3 extends along the length direction of the water inlet body 41 and the length direction of the first water pipe 71 and the second water pipe 72. The head end of the water channel 3 is located at the water inlet end of the water inlet body 41, and the end end of the water channel 3 is located at the water outlet end of the first water pipe 71 and the second water pipe 72. The inner cavity of the first water pipe 71 is connected to the inner cavity of the first heat exchange pipe 110, and the second water pipe 72 is connected to the inner cavity of the second water pipe 72. The inner cavity is communicated with the inner cavity of the second heat exchange tube 111, and the inner cavity of the first heat exchange tube 110 and the inner cavity of the second heat exchange tube 111 are both communicated with the inner cavity of the preheating water outlet pipe 112. The second water pipe 72 is provided with a switch component 720 for opening or closing the inner cavity of the second water pipe 72. In this embodiment, the switch component 720 is preferably an electromagnetic switch. When the switch component 720 opens the inner cavity of the second water pipe 72, the liquid can pass through the first heat exchange tube 110 and the second heat exchange tube 111 at the same time, and two independent preheating channels are formed in the preheating mechanism 11, which improves the preheating effect of the preheating mechanism 11 and further improves the heating effect of the liquid. When the switch component 720 closes the inner cavity of the second water pipe 72, the liquid passes through the first heat exchange tube 110 and enters the heating mechanism for heating, which can increase the water output of the heat exchange device to a certain extent, which can be understood by those skilled in the art.

[0036] A gas water heater includes a shell 8, a control component, and a water inlet structure. Specifically, in this embodiment, the water inlet structure is installed in the shell 8, the control component is installed on the front surface of the shell 8, and the water inlet structure is electrically connected to the control component. When the heat exchange device is closed and stops heating the liquid, the control component receives a closing signal from the heat exchange device and controls the water channel opening and closing structure 4 to close the water channel 3, preventing liquid from an external liquid source from entering the heat exchange device through the water channel 3, causing the liquid to stop flowing and part of the liquid to remain in the heat exchange device and stop continuing to be output outside the heat exchange device, thereby preventing the liquid from remaining between the heat exchange device and the water outlet end of the gas water heater. When the heat exchange device starts working again, the liquid in the heat exchange device is reheated, the control component receives an opening signal from the heat exchange device and controls the water channel opening and closing structure 4 to open the water channel 3, allowing liquid from an external liquid source to enter the heat exchange device through the water channel 3, and the heated liquid flows again and flows out of the heat exchange device and is discharged from the water outlet end of the gas water heater. This can be understood by those skilled in the art.

[0037] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention, which is defined by the appended claims and their equivalents.

Claims

1. A water inlet structure, characterized in that: The heat exchange device comprises a heat exchange device, a water inlet joint (2) for connecting to an external liquid source, and a water channel (3) for transporting liquid from the water inlet joint (2) to the heat exchange device. The water channel (3) is provided with a water channel opening and closing structure (4) for opening or closing the water channel (3).

2. The water inlet structure according to claim 1, characterized in that: The waterway opening and closing structure (4) comprises a water inlet body (41), an opening and closing component (42) and a driving component (43). The inner cavity of the water inlet body (41) forms a waterway channel (3). The waterway channel (3) extends along the length direction of the water inlet body (41). The head end of the waterway channel (3) is located at the water inlet end of the water inlet body (41), and the tail end of the waterway channel (3) is located at the water outlet end of the water inlet body (41). The opening and closing component (42) is arranged in the water inlet body (41) and is located in the waterway channel (3). The driving component (43) is arranged on the water inlet body (41) and is transmission-connected to the opening and closing component (42). The opening and closing component (42) is rotated by the driving component (43) to open or close the waterway channel (3).

3. The water inlet structure according to claim 2, characterized in that: The water inlet body (41) is provided with an opening and closing mounting portion (410) for mounting an opening and closing component (42), the opening and closing mounting portion (410) being located between the head end and the end end of the waterway channel (3), the opening and closing component (42) being cylindrical or spherical, the horizontal projection of the opening and closing mounting portion (410) being circular, the diameter of which is equivalent to the diameter of the opening and closing component (42), and a water through hole (420) for conducting the waterway channel (3) being provided on a side wall of the opening and closing component (42).

4. The water inlet structure according to claim 2, characterized in that: The water inlet body (41) is provided with a drive mounting portion (411) for mounting a drive component (43). The drive mounting portion (411) is arranged on a side wall of the water inlet body (41). The drive mounting portion (411) is provided with a drive hole (412) communicating with the water channel (3). The drive component (43) includes a drive mounting plate (430) and a drive shaft (431). When the drive component (43) is mounted on the water inlet body (41), the drive mounting plate (430) is fixed to the drive mounting portion (411), and the drive shaft (431) extends into the water channel (3) through the drive hole (412) and is in transmission connection with the opening and closing component (42).

5. The water inlet structure according to claim 4, characterized in that: A mounting structure is provided between the driving component (43) and the water inlet body (41), and the driving component (43) is mounted on the water inlet body (41) via the mounting structure. The mounting structure comprises a mounting through hole (432) provided on the driving component (43), a mounting screw hole (413) provided on the water inlet body (41), and a fastening component. The mounting through holes (432) are multiple and circumferentially arranged on the driving mounting plate (430). The mounting screw holes (413) correspond to the mounting through holes (432) and are provided on the periphery of the driving mounting portion (411). The fastening component and the mounting screw holes (413) are screwed together.

6. The water inlet structure according to claim 2, characterized in that: The water inlet structure further comprises a water quantity monitoring component (5) for monitoring liquid flow, the water quantity monitoring component (5) being arranged on a side wall of the water inlet body (41) and located below the driving component (43), the water inlet body (41) being provided with a water quantity monitoring mounting portion (414) for mounting on the water quantity monitoring component (5), the water quantity monitoring mounting portion (414) being provided with a first monitoring hole (415) communicating with the waterway channel (3), the detection end of the water quantity monitoring component (5) extending into the waterway channel (3) through the first monitoring hole (415).

7. The water inlet structure according to claim 2, characterized in that: The water inlet structure further comprises a temperature monitoring component (6) for monitoring the temperature of the liquid. The temperature monitoring component (6) is arranged on the side wall of the water inlet body (41) and is located below the driving component (43). The water inlet body (41) is provided with a temperature monitoring mounting portion (416) for mounting on the temperature monitoring component (6). The temperature monitoring mounting portion (416) is provided with a second monitoring hole (417) communicating with the water channel (3). The detection end of the temperature monitoring component (6) extends into the water channel (3) through the second monitoring hole (417).

8. The water inlet structure according to claim 2, characterized in that: The water inlet structure further comprises a water pipe assembly, which is arranged between the water inlet body (41) and the heat exchange device. The inner cavity of the water inlet body (41) and the inner cavity of the water pipe assembly together form a water channel (3). The water channel (3) extends along the length direction of the water inlet body (41) and the length direction of the water pipe assembly. The head end of the water channel (3) is located at the water inlet end of the water inlet body (41), and the tail end of the water channel (3) is located at the water outlet end of the water pipe assembly.

9. The water inlet structure according to claim 8, characterized in that: The water pipe assembly includes a first water pipe (71) and a second water pipe (72); the heat exchange device includes a preheating mechanism (11); the preheating mechanism (11) includes a first heat exchange pipe (110), a second heat exchange pipe (111), and a preheating water outlet pipe (112); the inner cavity of the first water pipe (71) is connected to the inner cavity of the first heat exchange pipe (110); the inner cavity of the second water pipe (72) is connected to the inner cavity of the second heat exchange pipe (111); the inner cavities of the first heat exchange pipe (110) and the second heat exchange pipe (111) are both connected to the inner cavity of the preheating water outlet pipe (112); and the second water pipe (72) is provided with a switch component (720) for opening or closing the inner cavity of the second water pipe (72).

10. A gas water heater, characterized in that: It comprises a housing (8), a control component and a water inlet structure according to any one of claims 1 to 9, wherein the control component and the water inlet structure are both arranged in the housing (8), and the water inlet structure is electrically connected to the control component.

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