Conveniently-adjusted filtering structure for water inlet waterway of intelligent gas water heater

Abstract

The utility model relates to the field of gas water heater water route filtering, disclose a kind of filtering structure for the water inlet water route of intelligent gas water heater convenient to adjust, including two groups of tank body with filter element inside, the upper and lower ends of two groups of tank body are provided with sealing cover, sealing ring is provided between the sealing cover and tank body, the sealing cover inner wall of tank body upper portion is fixedly connected with water pipe, the sealing cover of two groups of tank body lower portion is interconnected by three-way solenoid valve, the sealing cover outside is provided with fixed mechanism.In the utility model, the filtering structure of two groups of tank body is matched with three-way solenoid valve to realize the rapid adjustment of drinking water and domestic water of gas water heater, balance practicality and economy, meanwhile screw rod penetrates two groups of fixing plate, nut a of screw rod lower portion is embedded in the inner wall of lower fixing plate, by nut b tightening, fixing plate and sealing cover are closely attached, guarantee the stable operation of filtering structure, and it is convenient to disassemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of water filtration in gas water heaters, and in particular to a filter structure for the inlet water circuit of an intelligent gas water heater that is easy to adjust. Background Technology

[0002] With the popularization of smart homes, gas water heaters have been upgraded from a single heating function to "intelligent control + multi-functional adaptation". Users' needs for water from water heaters are also becoming more segmented. They not only require that the water for bathing has basic impurity filtration capabilities, but also hope to obtain clean water that meets drinking standards directly. This places higher demands on the filtration structure of the inlet water circuit.

[0003] Most gas water heaters currently only have one set of filter components (single tank + single filter element), adopting a "one-element-multiple-use" filtration mode. If a high-precision filter element (such as an RO reverse osmosis filter element) is used, although it can meet the drinking water requirements, long-term filtration of large amounts of bath water will cause the filter element to be overloaded, significantly shortening its lifespan (usually by 30% to 50%), and the replacement cost is high. If a basic filter element (such as a PP cotton filter element) is used, it can only intercept large particles of impurities such as sediment and rust, and cannot remove harmful substances such as heavy metals and microorganisms. The output water cannot meet drinking standards, making it difficult to balance practicality and economy. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an easily adjustable intelligent gas water heater inlet water circuit filtration structure, aiming to solve the problems in the prior art where "a single filter component is used for multiple purposes, which cannot meet the water quality requirements of drinking water and domestic water, resulting in short lifespan of high-precision filter elements, substandard filtration of basic filter elements, and difficulty in balancing practicality and economy".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter structure for the inlet water circuit of an easily adjustable intelligent gas water heater, comprising two sets of tanks with filter elements inside, each set of tanks having a sealing cap at its upper and lower ends, a sealing ring between the sealing cap and the tank, a water pipe fixedly connected to the inner wall of the sealing cap at the upper part of the tank, the sealing caps at the lower parts of the two sets of tanks being interconnected through a three-way solenoid valve, a fixing mechanism being provided on the outer side of the sealing cap, and an auxiliary component being provided on the upper part of the fixing mechanism; The fixing mechanism includes a fixing plate, and two sets of fixing plates are provided. The two sets of fixing plates are respectively set on the upper and lower sides of multiple sets of sealing covers. A screw is provided through the inner wall of the two sets of fixing plates. Nuts b and a are threadedly connected to the upper and lower sides of the screw respectively. A positioning pin is vertically fixed to the opposite side of the two sets of fixing plates. A positioning hole is opened on the outer side of the sealing cover, and the positioning pin is inserted into the positioning hole.

[0006] As a further description of the above technical solution: The auxiliary component includes a slide groove, which is formed on the inner wall of an upper set of fixed plates. A base is slidably connected to the inner wall of the slide groove. A pull plate is fixedly connected to the upper right side of the base. Two sets of irregularly shaped parts are fixedly connected to the upper part of the base. The two sets of irregularly shaped parts contact the outside of the nut b. A limiting member is fixedly connected to the lower part of the irregularly shaped parts. A slot is formed on the upper part of the base to engage with the limiting member.

[0007] As a further description of the above technical solution: The fixing plate is configured in an H shape.

[0008] As a further description of the above technical solution: The upper part of nut a is fitted into the inner wall of a set of fixing plates on the lower side.

[0009] As a further description of the above technical solution: The irregular part has a notch on the lower left side, the left side of the irregular part extends downward, and the edge is set as an arc surface.

[0010] As a further description of the above technical solution: The base is U-shaped.

[0011] This utility model has the following beneficial effects: 1. In this utility model, the filter structure composed of two sets of tanks, together with a three-way solenoid valve, enables rapid adjustment of drinking water and domestic water in the gas water heater, balancing practicality and economy. At the same time, the screw passes through the upper and lower fixing plates, and the nut a at the bottom of the screw is fitted into the inner wall of the lower fixing plate. By tightening the nut b, the fixing plate and the sealing cover are tightly fitted, ensuring the stable operation of the filter structure and facilitating disassembly and maintenance.

[0012] 2. In this utility model, the auxiliary component can be quickly adjusted in position through the sliding cooperation between the U-shaped base and the slide groove. Pushing the pull plate makes the two sets of irregular parts fit against the nut b and can lock the hexagonal edge of the nut. With the locking and fixing of the limiting part and the slot, the nut is prevented from loosening and is limited. When disassembling later, only the pull plate needs to be pulled to disengage the nut b. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 2 This is a bottom view of the three-dimensional structure of the overall device in this utility model; Figure 3 This is a three-dimensional structural breakdown diagram of the overall device in this utility model; Figure 4 This is a three-dimensional structural disassembly diagram of the auxiliary components in this utility model; Figure 5 This is a three-dimensional structural diagram of the base and the irregularly shaped part in this utility model; Figure 6 This is a three-dimensional structural diagram of the fixing plate and positioning pin in this utility model.

[0014] Legend: 1. Tank body; 2. Sealing cover; 3. Water pipe; 4. Three-way solenoid valve; 5. Fixing mechanism; 51. Fixing plate; 52. Screw; 53. Nut a; 54. Nut b; 55. Positioning pin; 56. Positioning hole; 6. Auxiliary components; 61. Base; 62. Irregular part; 63. Pull plate; 64. Slot; 65. Limiting component; 66. Slide groove; 7. Sealing ring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figure 1 - Figure 3This utility model provides an embodiment of a filter structure for the inlet water circuit of an easily adjustable intelligent gas water heater, comprising two sets of tanks 1 with internal filter elements. The built-in filter elements provide a closed space for water filtration. The two sets of tanks 1 can be filled with filter elements of different precision according to water quality requirements. For example, one set can be filled with an RO reverse osmosis filter element for drinking water filtration, while the other set can be filled with a PP cotton filter element for removing impurities from bath water. This avoids the problems of low filtration efficiency and short lifespan caused by a single filter element in a single tank 1 serving multiple purposes. Both sets of tanks 1 have sealing caps 2 at their upper and lower ends, and sealing rings 7 are provided between the sealing caps 2 and the tanks 1. The sealing rings 7 are made of water-resistant nitrile rubber with good compression deformation capacity. When the fixing mechanism 5 applies pressure, the sealing rings 7 are compressed and deformed, filling the tiny gaps between the sealing caps 2 and the tanks 1. To prevent water leakage, a water pipe 3 is fixedly connected to the inner wall of the sealing cover 2 on the upper part of the tank 1. The right side of the water pipe 3 is the water inlet, and the left side of the water pipe 3 is the drinking water outlet. The unconnected end of the three-way solenoid valve 4 is the domestic water outlet. Both the drinking water outlet and the domestic water outlet are connected to the water inlet port of the gas water heater. The sealing covers 2 at the bottom of the two sets of tanks 1 are interconnected through the three-way solenoid valve 4. The three-way solenoid valve 4 has three interfaces, which are respectively connected to the sealing covers 2 at the bottom of the two sets of tanks 1 and the external main water outlet. It has an electrically controllable valve core inside. When it receives a smart control command, the valve core rotates to change the water flow channel: when the interface of the high-precision filter tank 1 is opened, the filtered water is drinking water; when the interface of the basic filter tank 1 is opened, the filtered water is bath water. It can achieve millisecond-level water circuit switching without manual disassembly or replacement of parts, adapting to the automation requirements of smart water heaters. A fixing mechanism 5 is set on the outside of the sealing cover 2, and an auxiliary component 6 is set on the upper part of the fixing mechanism 5.

[0017] Reference Figure 3 , Figure 4 and Figure 6 The fixing mechanism 5 includes a fixing plate 51, which is H-shaped. There are two sets of fixing plates 51, which are respectively set on the upper and lower sides of the multiple sets of sealing covers 2. They are connected by screws 52 to form a clamping fixing structure, which firmly fixes the sealing cover 2 to the port of the tank body 1. Screws 52 are provided through the inner walls of the two sets of fixing plates 51 to connect the two sets of fixing plates 51. Pressure is applied by thread locking to achieve a tight fit between the sealing cover 2 and the tank body 1. Nuts b54 and a53 are threaded to the upper and lower sides of the screws 52, respectively. The upper part of nut a53 is fitted into the inner wall of the lower set of fixing plates 51. A positioning pin 55 is vertically fixed to the opposite side of the two sets of fixing plates 51. A positioning hole 56 is opened on the outer side of the sealing cover 2. The positioning pin 55 is inserted into the positioning hole 56 to quickly align the relative position of the fixing plate 51 and the sealing cover 2, preventing the fixing plate 51 from detaching from the sealing cover 2.

[0018] Reference Figure 3 - Figure 5 The auxiliary component 6 includes a slide 66, which is formed on the inner wall of an upper set of fixed plates 51. A base 61 is slidably connected to the inner wall of the slide 66, supporting the irregularly shaped part 62 and sliding along the inner wall of the slide 66 of the fixed plate 51 to realize the position adjustment of the auxiliary component 6. A pull plate 63 is fixedly connected to the upper right side of the base 61, providing a manual force application point to facilitate pushing the base 61 to slide. Two sets of irregularly shaped parts 62 are fixedly connected to the upper part of the base 61. The two sets of irregularly shaped parts 62 contact the outside of the nut b54 to lock the head of the nut b54 and prevent the nut from loosening due to vibration. A limiter 65 is fixedly connected to the lower part of the irregularly shaped part 62. A slot 64 is formed on the upper part of the base 61 to engage with the limiter 65, limiting the lateral displacement of the irregularly shaped part 62. Even if the base 61 slides or is vibrated, the irregularly shaped part 62 can maintain its contact with the nut to ensure stable limiting effect. The irregular part 62 has a notch on the lower left side, and the left side of the irregular part 62 extends downward and the edge is set as an arc surface. The notch allows the left side of the irregular part 62 to deform, so that it can fit against the vertical surface of the fixing plate 51, further locking the position of the irregular part 62. The base 61 is set in a U shape.

[0019] Working principle: When the user needs drinking water, they can send a control command through the gas water heater panel or remote APP. The internal electronically controlled valve core of the three-way solenoid valve 4 will rotate, opening the water circuit of the tank 1 connected to the built-in RO reverse osmosis filter. At this time, external water enters the tank 1 on the left through the right water pipe 3. After the water flows through the high-precision filter to intercept impurities such as heavy metals and microorganisms, it is guided to the drinking water outlet pipe 3 and finally enters the gas water heater to meet the drinking water quality requirements.

[0020] When switching to domestic water use such as showering, the control command drives the three-way solenoid valve 4 to rotate again, disconnecting the water circuit of tank 1 corresponding to drinking water and opening the water circuit of tank 1 connected to the built-in PP cotton filter. External water enters tank 1 through the right-side water pipe 3. After the filter intercepts basic impurities such as sediment and rust, it flows into the three-way solenoid valve 4 from the lower sealing cover 2, and then enters the water heater for heating through the interface of the three-way solenoid valve 4 that is not connected to tank 1, thus ensuring the quality of shower water. The entire switching process does not require stopping the machine or disassembling parts. The rotation of the three-way solenoid valve 4 controls the water circuit opening and closing, adapting to the automation requirements of smart water heaters.

[0021] When the filter element needs to be replaced or the parts need maintenance, pull the pull plate 63 to drive the base 61 to slide along the slide groove 66, so that the irregular part 62 is disengaged from the nut b54, and the restriction on the nut b54 is released. With the help of tools such as a wrench, the nut b54 can be unscrewed.

[0022] After unscrewing nut b54, pull out screw 52 that penetrates the inner wall of the two sets of fixing plates 51, remove the upper two sets of fixing plates 51. At this time, the sealing cover 2 loses the pressure constraint applied by the fixing plates 51, and the sealing cover 2 can be opened directly to replace the filter element in the tank 1. The operation is convenient and efficient.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter structure for the inlet water circuit of an easily adjustable intelligent gas water heater, comprising two sets of tanks (1) with filter elements installed inside, characterized in that: Both sets of tanks (1) are provided with sealing caps (2) at their upper and lower ends. A sealing ring (7) is provided between the sealing cap (2) and the tank (1). A water pipe (3) is fixedly connected to the inner wall of the sealing cap (2) at the upper part of the tank (1). The sealing caps (2) at the lower part of the two sets of tanks (1) are connected to each other through a three-way solenoid valve (4). A fixing mechanism (5) is provided on the outside of the sealing cap (2). An auxiliary component (6) is provided on the upper part of the fixing mechanism (5). The fixing mechanism (5) includes a fixing plate (51), and two sets of fixing plates (51) are provided. The two sets of fixing plates (51) are respectively set on the upper and lower sides of the multiple sets of sealing covers (2). The inner walls of the two sets of fixing plates (51) are provided with screws (52). Nuts b (54) and nut a (53) are threadedly connected to the upper and lower sides of the screws (52) respectively. A positioning pin (55) is vertically fixed to one side of the two sets of fixing plates (51). A positioning hole (56) is opened on the outer side of the sealing cover (2). The positioning pin (55) is inserted into the positioning hole (56).

2. The easily adjustable filter structure for the inlet water circuit of an intelligent gas water heater according to claim 1, characterized in that: The auxiliary component (6) includes a slide (66), which is formed on the inner wall of an upper set of fixed plates (51). A base (61) is slidably connected to the inner wall of the slide (66). A pull plate (63) is fixedly connected to the upper right side of the base (61). Two sets of irregular parts (62) are fixedly connected to the upper part of the base (61). The two sets of irregular parts (62) are in contact with the outside of the nut b (54). A limiting member (65) is fixedly connected to the lower part of the irregular part (62). A slot (64) is formed on the upper part of the base (61) to engage with the limiting member (65).

3. The easily adjustable filter structure for the inlet water circuit of an intelligent gas water heater according to claim 1, characterized in that: The fixing plate (51) is configured in an H shape.

4. The easily adjustable filter structure for the inlet water circuit of an intelligent gas water heater according to claim 1, characterized in that: The upper part of the nut a (53) is fitted into the inner wall of a set of fixing plates (51) on the lower side.

5. The easily adjustable filter structure for the inlet water circuit of an intelligent gas water heater according to claim 2, characterized in that: The irregular part (62) has a notch on the lower left side, the irregular part (62) extends downward on the left side, and the edge is set as an arc surface.

6. The easily adjustable filter structure for the inlet water circuit of an intelligent gas water heater according to claim 2, characterized in that: The base (61) is configured in a U-shape.

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