Gas water heater with cold and hot fresh air

Abstract

The utility model relates to the technical field of gas water heaters, in particular to a gas water heater with cold and hot fresh air, which comprises a water heater body, a filter assembly and a fresh air pipeline, the fresh air pipeline is connected with the water heater body through the filter assembly, and the filter assembly comprises a filter box, a placing frame, a filter element, a cover plate, a sealing strip and a limiting component. The filter box is fixedly connected with the water heater body and located at the top of the water heater body, the placing frame is slidably installed in the filter box, the filter element is detachably installed on the placing frame, the cover plate is fixedly connected with the placing frame and located on one side of the placing frame, and the sealing strip is installed on the cover plate and located on the side, close to the filter box, of the cover plate. The problems that in order to guarantee the quality of fresh air, the filter element needs to be replaced regularly, but in the prior art, the filter element is installed in the main body, the main body needs to be opened by disassembling a plurality of bolts to be replaced, and replacement is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heaters, in particular to a gas water heater with cold and hot fresh air. Background Art

[0002] In order to meet the needs of heating, domestic hot water and fresh air, people currently need to purchase and install two sets of products, a gas water heater and a fresh air fan, when decorating their homes. The cost is high and there are many requirements for decoration and installation space. Secondly, household gas water heaters are generally installed indoors, and after burning for a long time, there is a risk of excessive indoor carbon dioxide. In addition, the air inlet of the gas water heater and the air inlet of the fresh air fan need to replace the filter element respectively. Two filter elements will result in high maintenance costs in the later stage.

[0003] Prior art CN116182408A discloses a gas water heater with hot and cold fresh air, including a gas water heater, which is characterized by also including a fresh air machine cavity, a heat exchanger, a heat exchange pipe, a fresh air pipe, a first filter element, a fresh air motor and a fresh air outlet; the fresh air machine cavity is installed on the gas water heater, and the heat exchanger is installed in the fresh air machine cavity; a three-way valve and a one-way valve are provided on the outlet pipe of the gas water heater, and the heat exchange pipe is installed in the heat exchanger; the fresh air pipe is installed on the fresh air machine cavity and the gas water heater, and an air inlet, a fresh air inlet and a gas chamber air inlet are respectively opened on the fresh air pipe. Its advantages are: the gas water heater has a fresh air system, low cost, small installation space, and there will be fresh air continuously during the use of the gas water heater, the indoor air is clean, and the carbon dioxide content is low. Only one filter element needs to be replaced to simultaneously meet the gas intake and fresh air intake filtering functions, and the later maintenance cost is low.

[0004] For the gas water heater with hot and cold fresh air in the prior art, in order to ensure the quality of the fresh air, the filter element needs to be replaced regularly. However, the filter element in the prior art is installed inside the main body, and it is necessary to open the main body by removing multiple bolts for replacement, which is inconvenient. Utility Model Content

[0005] The utility model aims to provide a gas water heater with hot and cold fresh air, which solves the problem that in order to ensure the quality of the fresh air, the filter element needs to be replaced regularly, while the filter element in the prior art is installed inside the main body and needs to be opened by removing multiple bolts for replacement, which makes replacement inconvenient.

[0006] To achieve the above-mentioned purpose, the utility model provides a gas water heater with hot and cold fresh air, comprising a water heater body, a filter assembly and a fresh air duct, wherein the fresh air duct is connected to the water heater body through the filter assembly, the filter assembly comprises a filter box, a placement rack, a filter core, a cover plate, a sealing strip and a limiting component, the filter box is fixedly connected to the water heater body and is located on the top of the water heater body, the placement rack is slidably installed in the filter box, the filter core is detachably installed on the placement rack, the cover plate is fixedly connected to the placement rack and is located on one side of the placement rack, the sealing strip is installed on the cover plate and is located on the side of the cover plate close to the filter box, and the limiting component limits the placement rack.

[0007] Wherein, the limiting component includes a positioning frame, a pull rod and an elastic member, the positioning frame is fixedly connected to the filter box and is located on one side of the filter box; the pull rod passes through the positioning frame and is slidably connected to the positioning frame; the elastic member supports the pull rod.

[0008] Wherein, the limiting component further includes a pull ring, which is fixedly connected to the pull rod and is located at the end of the pull rod.

[0009] Wherein, the elastic member comprises a limit block and a spring, the limit block is fixedly connected to the pull rod and is located in the positioning frame; the spring is sleeved on the outside of the pull rod and is located between the positioning frame and the limit block.

[0010] Wherein, the filter box has a sliding groove, and the sliding groove is located on a side of the filter box close to the placement rack; the placement rack has a protrusion, and the protrusion cooperates with the sliding groove.

[0011] The utility model discloses a gas water heater with cold and hot fresh air, comprising a water heater body, a filter assembly and a fresh air duct, wherein the fresh air duct is connected to the water heater body through the filter assembly, and the filter assembly comprises a filter box, a placement rack, a filter core, a cover plate, a sealing strip and a limiting component, wherein the filter box is fixedly connected to the water heater body and is located on the top of the water heater body, the placement rack is slidably installed in the filter box, the filter core is detachably installed on the placement rack, the cover plate is fixedly connected to the placement rack and is located on one side of the placement rack, the sealing strip is installed on the cover plate and is located on a side of the cover plate close to the filter box, and the limiting component limits the placement rack, thereby solving the problem that the filter core needs to be replaced regularly to ensure the quality of the fresh air, while the filter core in the prior art is installed inside the main body, and the main body needs to be opened by removing multiple bolts for replacement, which makes replacement inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of a gas water heater with cold and hot fresh air according to the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the limiting component of the first embodiment of the utility model.

[0015] Figure 3 This utility model Figure 2 Enlarged view of point A.

[0016] Figure 4 It is a schematic diagram of the overall structure of a gas water heater with cold and hot fresh air according to the second embodiment of the utility model.

[0017] In the figure: 101-hot water boiler body, 102-fresh air duct, 103-filter box, 104-placing rack, 105-filter element, 106-cover plate, 107-sealing strip, 108-positioning rack, 109-pull rod, 110-pull ring, 111-limiting block, 112-spring, 201-sliding groove, 202-protrusion. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figure 1-Figure 3 , Figure 1 This is a schematic diagram of the overall structure of a gas water heater with cold and hot fresh air according to the first embodiment of the utility model. Figure 2 It is a schematic structural diagram of the limiting component of the first embodiment of the utility model. Figure 3 This utility model Figure 2 Enlarged view of point A.

[0021] The utility model of the gas water heater with hot and cold fresh air includes a water heater body 101, a fresh air duct 102, a filter box 103, a placement rack 104, a filter element 105, a cover plate 106, a sealing strip 107, a positioning rack 108, a pull rod 109, a pull ring 110, a limit block 111, and a spring 112, which solves the problem that the filter element needs to be replaced regularly in order to ensure the quality of the fresh air, while the filter element in the prior art is installed inside the main body and needs to be opened by removing multiple bolts to be replaced, which is inconvenient to replace. It can be understood that the above solution can also be used to improve practicality.

[0022] In this embodiment, the water heater body 101 and the fresh air duct 102 are both prior arts. The fresh air duct 102 is a Y-shaped duct. The water heater body 101 is provided with a gas water heater, a heat exchanger, a three-way valve and a fresh air fan. The filtered outdoor fresh air will pass through the heat exchanger under the action of the fresh air fan. The three-way valve controls whether the hot water generated by the gas water heater is used to exchange heat with the fresh air through the heat exchanger, so as to realize the two functions of providing normal temperature fresh air and heated fresh air to the room. Indoor heating can be performed in cold seasons, and bathing comfort is high. In the use of the gas water heater, there will be continuous fresh air, and the indoor air will be clean with a low carbon dioxide content. While solving the demand for domestic hot water, the demand for fresh air in the room can also be met. The filter assembly is installed on the water heater body 101, so as to facilitate the replacement of the filter element at a later stage, and solves the problem that the filter element needs to be replaced regularly in order to ensure the quality of the fresh air, while the filter element in the prior art is installed inside the main body, and it is necessary to open the main body by removing multiple bolts for replacement, which is inconvenient to replace.

[0023] The filter box 103 is fixedly connected to the water heater body 101 and is located on the top of the water heater body 101. The placement rack 104 is slidably installed in the filter box 103. The filter element 105 is detachably installed on the placement rack 104. The cover plate 106 is fixedly connected to the placement rack 104 and is located on one side of the placement rack 104. The sealing strip 107 is installed on the cover plate 106 and is located on the side of the cover plate 106 close to the filter box 103. The limiting member limits the placement rack 104. The filter box 103 is a rectangular internal cavity. The bottom and the front are open, the top of the filter box 103 is provided with two through holes, which correspond to the two interfaces of the fresh air duct 102 respectively, and the top of the water heater body 101 is provided with air holes, the position of the air holes corresponds to the position of the filter box 103, so that the fresh air can enter the water heater body 101 easily, and the placement rack 104 is a U-shaped rack, which is slidably installed inside the filter box 103 and used to install the filter element 105. The filter element 105 can be fixed on the placement rack 104 for easy disassembly, and the filter element 105 is used to filter the fresh air. The cover 106 is a rectangular body, which matches the opening of the filter box 103. A handle is provided on the cover 106 for easy pulling. The cover 106 is combined with the placement rack 104 to form a structure similar to a drawer. By pulling the handle, the placement rack 104 can be driven to slide. When the placement rack 104 is completely in the filter box 103, the cover 106 can cover the opening of the filter box 103 to prevent dust from entering. The sealing strip 107 is made of rubber and is installed on the cover 106 by bonding. When the cover 106 is closed, the sealing strip 107 is The seal 107 abuts against the open part of the filter box 103 to prevent dust and improve the sealing performance. There are two groups of limiting components, which are respectively arranged on the left and right sides of the filter box 103, and are used to lock the placement rack 104 in the filter box 103. The placement rack 104 is unlocked by the limiting components, and the placement rack 104 can be conveniently pulled out to replace the filter element, which solves the problem that the filter element needs to be replaced regularly to ensure the quality of fresh air, while the filter element in the prior art is installed inside the main body, and it is necessary to open the main body by removing multiple bolts for replacement, which is inconvenient to replace.

[0024] Secondly, the positioning frame 108 is fixedly connected to the filter box 103 and is located on one side of the filter box 103; the pull rod 109 passes through the positioning frame 108 and is slidably connected to the positioning frame 108; the elastic member supports the pull rod 109, the positioning frame 108 is U-shaped, fixed to the side of the filter box 103 by bolts, and the opening direction faces the filter box 103. A mounting hole is opened on the positioning frame 108, and the pull rod 109 is a cylinder, and the diameter of the pull rod 109 corresponds to the diameter of the mounting hole. The pull rod 109 passes through the mounting hole and is slidably connected to the positioning frame 108. A through hole is provided at a position of the filter box 103 corresponding to the pull rod 109. The pull rod 109 can extend into the filter box 103 through the through hole. A locking hole is provided on the side of the placement frame 104. The position of the locking hole corresponds to the position of the pull rod 109. The end of the pull rod 109 can extend into the locking hole. The elastic member provides elastic support for the pull rod 109 to prevent the pull rod 109 from slipping out of the locking hole.

[0025] At the same time, the pull ring 110 is fixedly connected to the pull rod 109 and is located at the end of the pull rod 109. The pull ring 110 facilitates pulling the pull rod 109.

[0026] In addition, the limit block 111 is fixedly connected to the pull rod 109 and is located in the positioning frame 108; the spring 112 is sleeved on the outside of the pull rod 109 and is located between the positioning frame 108 and the limit block 111. The limit block 111 is circular and sleeved on the outside of the pull rod 109. The spring 112 is in a compressed state. The two ends of the spring 112 are respectively in contact with the limit block 111 and the inner wall of the positioning frame 108. Through the elastic force of the spring 112, the pull rod 109 is elastically supported.

[0027] In this embodiment, when the filter element 105 needs to be replaced, the pull rings 110 on both sides are pulled respectively to pull the end of the pull rod 109 out of the lock hole of the placement rack 104, and then the handle is pulled to pull the placement rack 104 outward, the old filter element 105 is taken out, and a new filter element 105 is replaced; after the replacement is completed, the placement rack 104 is completely slid into the filter box 103, and a certain force is applied. When the position of the lock hole is aligned with the end of the pull rod 109, the end of the pull rod 109 will automatically be inserted into the lock hole under the action of the spring 112, so that the placement is completed. The rack 104 is locked (the end of the locking rod is arc-shaped and the position extending into the filter box 103 is relatively short, and the pull rod 109 can be elastically retracted, so it will not prevent the rack 104 from sliding into the filter box 103). When replacing the filter element, the present application does not need to remove the bolts. It only needs to pull the pull ring 110 to slide out of the rack 104 for replacement. The operation is simple, convenient and fast, which solves the problem that in order to ensure the quality of fresh air, the filter element needs to be replaced regularly, while the filter element in the prior art is installed inside the main body, and it is necessary to remove multiple bolts to open the main body for replacement, which is inconvenient to replace.

[0028] The second embodiment of the present application is:

[0029] See also Figure 4 , Figure 4 It is a schematic diagram of the overall structure of the gas water heater with hot and cold fresh air of the second embodiment of the utility model. On the basis of the first embodiment, the gas water heater with hot and cold fresh air of this embodiment further includes a sliding groove 201 and a protrusion 202.

[0030] In this embodiment, the filter box 103 has a sliding groove 201 , and the placement rack 104 has a protrusion 202 . The placement rack 104 can slide in the filter box 103 through the above solution.

[0031] Among them, the sliding groove 201 is located on the side of the filter box 103 close to the placement rack 104; the protrusion 202 cooperates with the sliding groove 201, and the number of the sliding grooves 201 is two, which are symmetrically arranged on the inner wall of the filter box 103, and the protrusion 202 is located on both sides of the placement rack 104. The sliding groove 201 cooperates with the protrusion 202, which can limit the placement rack 104 and facilitate alignment during installation. Through the sliding groove 201 and the protrusion 202, the placement rack 104 can slide in the filter box 103.

[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A gas water heater with cold and hot fresh air, comprising a water heater body, characterized in that: It also includes a filter assembly and a fresh air duct, wherein the fresh air duct is connected to the water heater body through the filter assembly; The filter assembly includes a filter box, a placement rack, a filter core, a cover plate, a sealing strip and a limiting component. The filter box is fixedly connected to the water heater body and is located on the top of the water heater body. The placement rack is slidably installed in the filter box. The filter core is detachably installed on the placement rack. The cover plate is fixedly connected to the placement rack and is located on one side of the placement rack. The sealing strip is installed on the cover plate and is located on a side of the cover plate close to the filter box. The limiting component limits the placement rack.

2. The gas water heater with cold and hot fresh air as claimed in claim 1, characterized in that: The limiting component includes a positioning frame, a pull rod and an elastic member. The positioning frame is fixedly connected to the filter box and is located at one side of the filter box; the pull rod passes through the positioning frame and is slidably connected to the positioning frame; and the elastic member supports the pull rod.

3. The gas water heater with cold and hot fresh air as claimed in claim 2, characterized in that: The limiting component also includes a pull ring, which is fixedly connected to the pull rod and is located at the end of the pull rod.

4. The gas water heater with cold and hot fresh air as claimed in claim 2, characterized in that: The elastic member comprises a limit block and a spring. The limit block is fixedly connected to the pull rod and is located in the positioning frame. The spring is sleeved on the outside of the pull rod and is located between the positioning frame and the limit block.

5. The gas water heater with cold and hot fresh air as claimed in claim 1, characterized in that: The filter box has a sliding groove, and the sliding groove is located at a side of the filter box close to the placement rack; the placement rack has a protrusion, and the protrusion cooperates with the sliding groove.

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