Water inlet pipe assembly and water heater

Abstract

The utility model relates to the technical field of hot water supply equipment, and discloses a water inlet pipe assembly and a water heater, the water inlet pipe assembly mainly comprises a water inlet pipe body, a buffer piece and a filter cartridge, one end of the filter cartridge is closed, the other opposite end of the filter cartridge is connected with the water outlet end of the water inlet pipe body, the side wall of the filter cartridge is provided with a plurality of water outlet holes, and the buffer piece is inserted into the filter cartridge. And the buffer piece directly faces the water outlet end of the water inlet pipe body. The filter cartridge is arranged at the water outlet end of the water inlet pipe body, and the buffer part is arranged in the filter cartridge, so that cold water output from the water outlet end can be buffered by the buffer part, the flowing speed of the cold water is reduced, and the water outlet direction of the cold water is changed to reduce the water pressure, so that the cold water slowly flows out from the water outlet holes of the filter cartridge; therefore, distribution of hot water layers of the water heater is protected, and hot water output rate is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water supply equipment, in particular to a water inlet pipe assembly and a water heater. Background Art

[0002] Hot water output rate refers to the ratio of the actual water output volume of a water heater to its total volume under rated conditions. It is an important indicator of water heater performance. A higher value indicates more hot water available and better performance.

[0003] The water inlet pipe is a key component that determines the hot water output rate and is installed in the water tank of the water heater. In order to improve the hot water output rate, the water inlet pipe of the existing water heater is generally provided with uniform water outlet holes at the water outlet end, so that cold water is sprayed from the water outlet holes to the surrounding areas.

[0004] However, the disadvantage of this structure is that the cold water ejected from the water outlet has a high pressure, which can easily destroy the hot water stratification in the water heater, resulting in a decrease in the amount of hot water that can be output, so the effect of improving the hot water output rate is not obvious. Utility Model Content

[0005] The first technical problem solved by the present invention is to provide a water inlet pipe assembly, which effectively solves the problem that cold water directly enters the water tank of the water heater from the water outlet hole of the water inlet pipe, the water pressure is large, and the hot water stratification is easily destroyed, resulting in a low hot water output rate.

[0006] The second technical problem solved by the present invention is to provide a water heater, which effectively solves the problem that cold water directly enters the water tank of the water heater from the water outlet of the water inlet pipe, the water pressure is large, and the hot water stratification is easily destroyed, resulting in a low hot water output rate.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] A water inlet pipe assembly for a water heater includes a water inlet pipe body, a buffer and a filter cartridge. One end of the filter cartridge is closed, and the other end is connected to the water outlet end of the water inlet pipe body. A plurality of water outlet holes are provided on the side wall of the filter cartridge. The buffer is inserted into the filter cartridge, and the buffer is directly opposite to the water outlet end of the water inlet pipe body.

[0009] Compared with the background art, the water inlet pipe assembly described in the present invention has the following beneficial effects: a filter cartridge is provided at the water outlet end of the water inlet pipe body, and a buffer is inserted into the filter cartridge. Since the buffer is directly opposite the water outlet end of the water inlet pipe body, the cold water output from the water outlet end of the water inlet pipe body is first buffered by the buffer before flowing out through the water outlet hole of the filter cartridge. The buffer can be used to block the cold water output from the water outlet end, reducing the speed of the cold water flow and changing the direction of the cold water outlet to reduce the water pressure of the cold water entering the water heater. In addition, the filter cartridge is closed at one end away from the water inlet pipe body, and only multiple water outlet holes are provided on the side wall of the filter cartridge. The filter cartridge can act as a secondary buffer, causing the cold water to flow slowly out of the multiple water outlet holes of the filter cartridge, thereby protecting the distribution of the various hot water layers of the water heater and effectively improving the hot water output rate of the water heater.

[0010] In one embodiment, the buffer member is provided with a water inlet facing the water inlet pipe body, and a flow stabilization cavity connected to the water inlet, and the side wall of the buffer member is provided with multiple water diversion ports surrounding the flow stabilization cavity and connected to the flow stabilization cavity.

[0011] In one embodiment, the buffer member is provided with a plurality of retaining rings spaced apart along the axial direction, and the gaps between the plurality of retaining rings form a plurality of the water diversion ports.

[0012] In one embodiment, a plurality of reinforcing ribs are provided on the outer side of the buffer member at intervals along the circumferential direction, the plurality of reinforcing ribs abut against the inner wall of the filter cartridge, and the plurality of retaining rings are fixedly connected via the plurality of reinforcing ribs.

[0013] In one embodiment, the inner diameters of the plurality of retaining rings gradually decrease from the water outlet end of the water inlet pipe body to the closed end of the filter cartridge to form a conical steady flow cavity.

[0014] In one embodiment, the water outlet hole is a circular hole, and the width of the gap between the plurality of retaining rings is smaller than the aperture of the water outlet hole.

[0015] In one embodiment, the filter cartridge is snap-connected to the water inlet pipe body.

[0016] In one embodiment, the filter cartridge is inserted into the water inlet pipe body, and one of the filter cartridge and the water inlet pipe body has at least one groove on its circumferential side, and the other has at least one protrusion on its circumferential side, and the protrusion is engaged with the groove.

[0017] In one embodiment, a first plane is provided axially on the inner side of the filter cartridge, a second plane abutting the first plane is provided on the outer side of the water inlet pipe body, and a third plane abutting the first plane is provided on the outer side of the buffer.

[0018] The second technical problem mentioned above is solved by the following technical solution:

[0019] A water heater comprises a water heater body and the above-mentioned water inlet pipe assembly. A water tank is provided in the water heater body, and the filter cartridge is arranged in the water tank.

[0020] Compared with the background technology, the water heater described in the present invention has the following beneficial effects: the water heater equipped with the water inlet pipe assembly allows cold water to slowly enter the water tank of the water heater through the filter cartridge and the buffer part. Compared with the existing water heaters, it can protect the distribution of each hot water layer of the water heater and effectively improve the hot water output rate of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural schematic diagram of a water inlet pipe assembly according to an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 An exploded view of the water inlet pipe assembly is shown;

[0024] Figure 3 for Figure 1 A cross-sectional view of the water inlet pipe assembly is shown;

[0025] Figure 4 for Figure 3 A partial enlarged view of

[0026] Figure 5 This is a structural schematic diagram of a buffer component of a water inlet pipe assembly according to an embodiment of the present utility model;

[0027] Figure 6 This is a structural schematic diagram of a water heater according to an embodiment of the present utility model.

[0028] Description of reference numerals:

[0029] 1. Water inlet pipe body; 101. Protrusion; 102. Second plane; 2. Buffer; 201. Water outlet; 202. Reinforcement rib; 203. Retaining ring; 204. Third plane; 3. Filter cartridge; 301. Water outlet; 302. Groove; 303. First plane; 4. Water heater body; 401. Water tank. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] The following combination Figures 1 to 6 , describing the embodiments of the present utility model.

[0035] According to an embodiment of the present invention, on the one hand, Figure 1 As shown, a water inlet pipe assembly is provided, which mainly includes a water inlet pipe body 1, a buffer member 2 and a filter cartridge 3.

[0036] The water inlet pipe assembly described in this embodiment is mainly used in water heaters and can effectively improve the hot water output rate of the water heater.

[0037] Furthermore, the water inlet pipe body 1 has an inlet end and a water outlet end, and the water inlet end is connected to the external cold water. One end of the filter cartridge 3 is closed, and an opening is provided at the other end. The open end of the filter cartridge 3 is connected to the water outlet end of the water inlet pipe body 1. A plurality of water outlet holes 301 are provided on the side wall of the filter cartridge 3. The filter cartridge 3 is provided with an inner cavity, and the buffer member 2 is inserted into the filter cartridge 3, and the buffer member 2 is directly opposite to the water outlet end of the water inlet pipe body 1. The water outlet end of the water inlet pipe body 1 inputs cold water into the filter cartridge 3, which is first buffered by the buffer member 2 and then buffered twice by the filter cartridge 3. The cold water finally flows out slowly from the multiple water outlet holes 301 of the filter cartridge 3.

[0038] Thus, it can be seen that the water inlet pipe assembly provided by the embodiment of the present invention has a filter cartridge 3 provided at the water outlet end of the water inlet pipe body 1, and a buffer 2 inserted into the filter cartridge 3. Since the buffer 2 is directly opposite the water outlet end of the water inlet pipe body 1, the cold water output from the water outlet end of the water inlet pipe body 1 is first buffered by the buffer 2 before flowing out through the water outlet hole 301 of the filter cartridge 3. The buffer 2 can be used to block the cold water output from the water outlet end, reduce the speed of the cold water flow, and change the direction of the cold water outlet to reduce the water pressure of the cold water entering the water heater. In addition, the filter cartridge 3 is closed at one end away from the water inlet pipe body 1, and only a plurality of water outlet holes 301 are provided on the side wall of the filter cartridge 3. The filter cartridge 3 can play a secondary buffering role, allowing the cold water to slowly flow out from the multiple water outlet holes 301 of the filter cartridge 3, thereby protecting the distribution of the hot water layers of the water heater and effectively improving the hot water output rate.

[0039] It should be noted that the buffer 2 of the embodiment of the present invention may be connected to the water inlet pipe body 1 or not. Since the buffer 2 needs to be arranged in the filter cartridge 3, the length of the buffer 2 is not greater than the length of the filter cartridge 3.

[0040] For example, Figure 3 and Figure 4 As shown, the length of the buffer member 2 is smaller than that of the filter cartridge 3 , one end of the buffer member 2 is plugged into the closed end of the filter cartridge 3 , and a gap is left between the other end and the water inlet pipe body 1 .

[0041] In one embodiment, Figure 2 As shown, the buffer member 2 is provided with a water inlet facing the water inlet pipe body 1 and a steady flow chamber connected to the water inlet. The sidewall of the buffer member 2 is provided with multiple water diversion ports 201 surrounding and connected to the steady flow chamber. When cold water is input from the water inlet pipe body 1 into the filter cartridge 3, it first enters the steady flow chamber through the water inlet of the buffer member 2. As the cold water passes through the buffer member 2, it is obstructed, changing the direction of the water flow and reducing its flow rate. The water then flows out of the multiple water diversion ports 201, then passes through the filter cartridge 3 for a second buffering, and then flows out of the water outlet 301 of the filter cartridge 3.

[0042] In addition, the plurality of water diversion ports 201 are connected to the plurality of water outlets 301. The arrangement of the water diversion ports 201 and the water outlets 301 can be selected from any existing arrangement as needed, and this embodiment of the utility model does not impose excessive restrictions on this. For example, the water diversion ports 201 and the water outlets 301 can be arranged one-to-one or staggered.

[0043] Furthermore, in one embodiment, Figure 5 As shown, the buffer 2 is provided with multiple baffle rings 203 spaced apart along the axial direction, and the gaps between the multiple baffle rings 203 form multiple water diversion ports 201. The multiple baffle rings 203 can block the cold water entering the flow stabilization cavity, reduce the speed of the cold water, and the cold water flows out from the gaps between the multiple baffle rings 203.

[0044] Furthermore, in one embodiment, Figure 2 、 Figure 4 and Figure 5 As shown, the outer side of the buffer 2 is provided with multiple reinforcing ribs 202 spaced circumferentially. The multiple reinforcing ribs 202 abut the inner wall of the filter cartridge 3, and the multiple retaining rings 203 are fixedly connected via the multiple reinforcing ribs 202. The provision of multiple reinforcing ribs 202 can enhance the structural strength of the buffer 2 and reduce deformation of the buffer 2 caused by cold water impact. Furthermore, the multiple reinforcing ribs 202 can be used to secure the buffer 2 within the filter cartridge 3, improving the stability of the connection between the buffer 2 and the filter cartridge 3 and facilitating installation of the buffer 2.

[0045] It should be noted that the embodiment of the present invention does not limit the shape of the buffer 2, and any existing structure can be selected as needed, such as a columnar, spherical or other conventional shape.

[0046] In addition, there is no limit on the number of reinforcing ribs 202 , and two, three, or more than three ribs may be provided as needed.

[0047] In one embodiment, the inner diameters of the multiple baffle rings 203 gradually decrease from the outlet end of the water inlet pipe body 1 to the closed end of the filter cartridge 3, forming a tapered flow stabilization chamber. This means that the buffer member 2 is tapered overall. This tapered shape reduces resistance and improves cold water transport efficiency. Similarly, the present embodiment does not limit the number of baffle rings 203.

[0048] Furthermore, in one embodiment, Figure 2 and Figure 5 As shown, four reinforcing ribs 202 are provided. The width of each reinforcing rib 202 gradually increases from the outlet end of the water inlet pipe body 1 to the closed end of the filter cartridge 3, forming a triangular plate shape to adapt to the tapered flow stabilization cavity. In addition, the end of the reinforcing rib 202 away from the water inlet pipe body 1 also abuts the closed end of the filter cartridge 3.

[0049] Since the water inlet pipe body 1 is generally a circular tube and the corresponding filter cartridge 3 is a cylindrical sleeve, the reinforcing ribs 202 abut against the inner wall of the filter cartridge 3, facilitating the securing of the buffer 2 within the filter cartridge 3. Adjacent reinforcing ribs 202 form a 90-degree angle to evenly distribute the force on the buffer 2, improving its structural strength and thereby extending its service life.

[0050] Furthermore, the inner wall of the filter cartridge 3 is further provided with a slot that cooperates with the reinforcing rib 202 , and the outer side of the reinforcing rib 202 is clamped in the slot to further improve the connection stability between the filter cartridge 3 and the buffer member 2 .

[0051] In one embodiment, the water outlet 301 is a circular hole, and the width of the gaps between the multiple retaining rings 203 is smaller than the aperture of the water outlet 301, so that water can flow smoothly from the gaps between the multiple retaining rings 203 to the water outlet 301 and then flow out from the water outlet 301.

[0052] It should be noted that the embodiment of the present invention does not limit the connection structure between the filter cartridge 3 and the water inlet pipe body 1 , and it can be a snap-fit ​​connection structure or a fastener-type connection structure.

[0053] In one embodiment, the filter cartridge 3 is snap-connected to the water inlet pipe body 1 , so that the filter cartridge 3 and the water inlet pipe body 1 can be quickly installed and removed, and the connection is reliable.

[0054] Furthermore, in one embodiment, the filter cartridge 3 is inserted into the water inlet pipe body 1. One of the filter cartridge 3 and the water inlet pipe body 1 has at least one groove 302 formed around one end thereof, and the other has at least one protrusion 101 formed around the other end thereof. The protrusion 101 engages with the groove 302. The engagement of the protrusion 101 with the groove 302 secures the filter cartridge 3 and the water inlet pipe body 1, securing the filter cartridge 3 after insertion into the water inlet pipe body 1. This provides a simple structure and facilitates manufacturing and installation.

[0055] In addition, the filter cartridge 3 can be inserted into the outside of the water inlet pipe body 1 in an interference fit manner, which can also ensure the sealing of the connection between the filter cartridge 3 and the water inlet pipe body 1.

[0056] It should be noted that the embodiment of the present invention does not limit the number of grooves 302 and protrusions 101, and one, two or more can be set as needed. Figure 2 As shown, a pair of grooves 302 are provided at intervals around one end of the filter cartridge 3, and a pair of protrusions 101 are correspondingly provided around the water inlet pipe body 1. The pair of protrusions 101 are respectively engaged with the pair of grooves 302, and the connection is firm and the force is evenly distributed.

[0057] Compared to a snap-on connection structure, a fastener-type connection structure is more secure. In one embodiment, the filter cartridge 3 can also be fixedly connected to the water inlet pipe body 1 via a fastener. For example, a first mounting hole is provided on one end of the filter cartridge 3, and a second mounting hole is provided on one end of the water inlet pipe body 1. A fastener is inserted through the first and second mounting holes to securely connect the filter cartridge 3 and the water inlet pipe body 1.

[0058] In order to improve the sealing performance of the connection between the filter cartridge 3 and the water inlet pipe body 1, a sealing ring may be further provided at the connection between the filter cartridge 3 and the water inlet pipe body 1.

[0059] In one embodiment, Figure 2 As shown, the inner side of the filter cartridge 3 is provided with a first flat surface 303 along the axial direction, the outer side of the water inlet pipe body 1 is provided with a second flat surface 102 that abuts the first flat surface 303, and the outer side of the buffer member 2 is provided with a third flat surface 204 that abuts the first flat surface 303. The first flat surface 303 of the water inlet pipe body 1 abuts the second flat surface 102 of the filter cartridge 3, thereby fixing the installation direction of the water inlet pipe body 1 after the outlet end of the water inlet pipe body 1 is inserted into the open end of the filter cartridge 3. The provision of the third flat surface 204 on the buffer member 2 that abuts the first flat surface 303 facilitates the fixing of the buffer member 2.

[0060] The first plane 303 of the filter cartridge 3 cooperates with the second plane 102 of the water inlet pipe body 1 and the third plane 204 of the buffer member 2 to facilitate determining the relative positions of the filter cartridge 3, the water inlet pipe body 1 and the buffer member 2, thereby avoiding installation displacement of the three and playing a fool-proof installation role.

[0061] Furthermore, in one embodiment, Figure 2 As shown, a groove 302 is provided on the first plane 303 of the filter cartridge 3 close to one end of the water inlet pipe body 1. A protrusion 101 is correspondingly provided on the second plane 102 of the water inlet pipe body 1.

[0062] The working process of the embodiment of the utility model is as follows:

[0063] Cold water is input into the filter cartridge 3 from the water outlet end of the water inlet pipe body 1, first enters the steady flow chamber from the water inlet of the buffer component 2, and is blocked when passing through the multiple baffle rings 203 of the buffer component 2. The direction of the water flow changes, the flow rate decreases, and the water flows from the gaps between the multiple baffle rings 203 to the water outlet 301 of the filter cartridge 3. Finally, it is buffered twice by the filter cartridge 3 and flows out from the water outlet 301 of the filter cartridge 3.

[0064] According to an embodiment of the present invention, on the other hand, Figure 6 As shown, a water heater is also provided, including a water heater body 4 and a water inlet pipe assembly. A water tank 401 is provided in the water heater body 4, and a filter cartridge 3 is provided in the water tank 401.

[0065] The water heater installed with the water inlet pipe assembly in the embodiment of the present invention allows cold water to slowly enter the water tank 401 of the water heater through the filter cartridge 3 and the buffer member 2. Compared with the existing water heaters, it can protect the distribution of each hot water layer of the water heater and effectively improve the hot water output rate of the water heater.

[0066] Specifically, the water outlet end of the water inlet pipe body 1 is downwardly disposed in the water tank 401 , and cold water slowly flows from the water outlet hole 301 of the filter cartridge 3 to the bottom of the water tank 401 .

[0067] It should be noted that the water heaters mentioned in this embodiment include but are not limited to electric water heaters, gas water heaters, etc.

[0068] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. A water inlet pipe assembly for a water heater, characterized by: The invention comprises a water inlet pipe body (1), a buffer member (2) and a filter cartridge (3); one end of the filter cartridge (3) is closed, and the other end is connected to the water outlet end of the water inlet pipe body (1); a plurality of water outlet holes (301) are provided on the side wall of the filter cartridge (3); the buffer member (2) is inserted into the filter cartridge (3), and the buffer member (2) is directly opposite to the water outlet end of the water inlet pipe body (1).

2. The water inlet pipe assembly according to claim 1, characterized in that: The buffer member (2) is provided with a water inlet facing the water inlet pipe body (1), and a flow stabilization cavity communicated with the water inlet, and a side wall of the buffer member (2) is provided with a plurality of water diversion ports (201) surrounding the flow stabilization cavity and communicating with the flow stabilization cavity.

3. The water inlet pipe assembly according to claim 2, characterized in that: The buffer member (2) is provided with a plurality of retaining rings (203) spaced apart in the axial direction, and the gaps between the plurality of retaining rings (203) form a plurality of water diversion ports (201).

4. The water inlet pipe assembly according to claim 3, characterized in that: The outer side of the buffer member (2) is provided with a plurality of reinforcing ribs (202) at intervals along the circumferential direction. The plurality of reinforcing ribs (202) abut against the inner wall of the filter cartridge (3). The plurality of retaining rings (203) are fixedly connected via the plurality of reinforcing ribs (202).

5. The water inlet pipe assembly according to claim 3, characterized in that: The inner diameters of the plurality of retaining rings (203) gradually decrease from the water outlet end of the water inlet pipe body (1) to the closed end of the filter cartridge (3) to form a conical steady flow cavity.

6. The water inlet pipe assembly according to claim 3, characterized in that: The water outlet hole (301) is a circular hole, and the width of the gaps between the plurality of retaining rings (203) is smaller than the aperture of the water outlet hole (301).

7. The water inlet pipe assembly according to any one of claims 1 to 6, characterized in that: The filter cartridge (3) is snap-connected to the water inlet pipe body (1).

8. The water inlet pipe assembly according to claim 7, characterized in that: The filter cartridge (3) is inserted into the water inlet pipe body (1); one of the filter cartridge (3) and the water inlet pipe body (1) is provided with at least one groove (302) on the circumference of one end, and the other is provided with at least one protrusion (101) on the circumference of the other end; the protrusion (101) is engaged with the groove (302) in a snap-fit ​​manner.

9. The water inlet pipe assembly according to any one of claims 1 to 6, characterized in that: A first plane (303) is provided on the inner side of the filter cartridge (3) along the axial direction, a second plane (102) is provided on the outer side of the water inlet pipe body (1) and abuts against the first plane (303), and a third plane (204) is provided on the outer side of the buffer component (2) and abuts against the first plane (303).

10. A water heater, characterized in that: It comprises a water heater body (4) and a water inlet pipe assembly according to any one of claims 1 to 9, wherein a water tank (401) is provided in the water heater body (4), and the filter cartridge (3) is provided in the water tank (401).

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