Water heater inlet pipe with cross-inserted buffer umbrella

Abstract

The utility model discloses a water heater water inlet pipe of cross -inserted type buffer umbrella, including connecting seat and water inlet pipe, the lower extreme of water inlet pipe is fixedly connected with connecting seat, and the upper end part of water inlet pipe forms and has water inlet pipe water -outlet hole, and the upper portion cover of water inlet pipe is equipped with buffer umbrella, and buffer umbrella forms and has umbrella top, and water inlet pipe forms and has upper end pipe mouth, and umbrella top closes upper end pipe mouth, and the inside of the upper end part of buffer umbrella forms and has inner cover, and the upper end part of water inlet pipe is located in the inner cover, and the inner cover is located the upside of water inlet pipe water -outlet hole, and the upper end part of water inlet pipe forms and has the positioning hole, and the positioning hole is equipped with the pin, and the both ends of pin are worn and are connected the inner cover, the utility model discloses be favorable to the effect of promoting the hot water of water storage type electric water heater.

Description

Technical Field

[0001] This utility model relates to the field of water inlet pipes for water heaters, specifically to a horizontally inserted buffer umbrella-type water inlet pipe for water heaters. Background Technology

[0002] Currently, storage-type electric water heaters are equipped with a water inlet pipe, such as the "Water Inlet Pipe of Electric Water Heater" in Chinese Utility Model Patent Publication No. CN201837067U. The upper cylindrical wall of the inlet pipe has several outlet holes. The inlet pipe extends upwards into the lower part of the inner tank of the storage-type electric water heater. The upper end of the outlet pipe is located inside the upper part of the inner tank. Because the hotter water is located at a higher position, the water entering the upper end of the outlet pipe is at a higher temperature. When a user uses the storage-type electric water heater for showering, if the tap water pressure is high, the water jet from the outlet hole has a high velocity. The cold water jet can easily disturb the hot water layer in the inner tank, meaning cold water can easily mix into the upper layer of hot water in the inner tank, resulting in poor hot water output from the storage-type electric water heater. Therefore, the existing water inlet pipe technology needs improvement. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a water inlet pipe for a water heater with a horizontally inserted buffer umbrella, which is beneficial to improving the hot water output effect of a storage-type electric water heater.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] The present invention discloses a horizontally inserted buffer umbrella-type water inlet pipe for a water heater, comprising a connecting base and an inlet pipe. The lower end of the inlet pipe is fixedly connected to the connecting base. The upper end of the inlet pipe has an inlet outlet hole. A buffer umbrella is provided on the upper part of the inlet pipe, the buffer umbrella having an umbrella top. The inlet pipe has an upper opening, the umbrella top closing the upper opening. An inner sleeve is formed inside the upper end of the buffer umbrella, the upper end of the inlet pipe being located within the inner sleeve, the inner sleeve being located above the inlet outlet hole. A positioning hole is formed on the upper end of the inlet pipe, a pin being provided in the positioning hole, and both ends of the pin passing through the inner sleeve.

[0006] Preferably, the upper end of the inner sleeve is integrally connected to the umbrella top, the water inlet pipe has an upper end face, and the upper end face of the water inlet pipe is attached to the lower side of the umbrella top.

[0007] Preferably, the inner sleeve is adapted to connect to the upper end of the water inlet pipe.

[0008] Preferably, the inner sleeve has an inner convex tube portion, which is adapted to be disposed in the positioning hole, and the two ends of the pin are respectively adapted to be disposed in the corresponding inner convex tube portions.

[0009] Preferably, a pin portion is formed on the lower side of the umbrella top, and the pin portion is adapted to be inserted into the upper end of the tube.

[0010] Compared with the prior art, the advantages of this utility model are as follows: by setting an inlet outlet hole at the upper end of the inlet pipe, and a buffer umbrella covering the upper part of the inlet pipe with an umbrella top, the inlet pipe has an upper opening, and the umbrella top seals the upper opening, so that the buffer umbrella can buffer the water flow sprayed from the outlet hole of the inlet pipe, thus improving the hot water output of the storage electric water heater; by setting an inner sleeve inside the upper end of the buffer umbrella, the upper end of the inlet pipe is located inside the inner sleeve, the inner sleeve is located above the outlet hole of the inlet pipe, and a positioning hole is formed at the upper end of the inlet pipe, with a pin inside the positioning hole, and the two ends of the pin are connected to the inner sleeve, the buffer umbrella can be prevented from detaching from the inlet pipe. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the water inlet pipe of the water heater according to the first embodiment of this utility model.

[0012] Figure 2 This is an exploded view of the water inlet pipe of the water heater according to the first embodiment of this utility model.

[0013] Figure 3 This is a cross-sectional view of the water inlet pipe of the water heater according to the first embodiment of this utility model.

[0014] Figure 4 for Figure 3 A partial structural diagram.

[0015] Figure 5 This is a partial cross-sectional structural diagram of the water inlet pipe of this utility model.

[0016] Figure 6 This is a partial cross-sectional structural diagram of the buffer umbrella according to the first embodiment of the present invention.

[0017] Figure 7 This is a partial cross-sectional structural diagram of the water inlet pipe of the water heater according to the second embodiment of this utility model.

[0018] Labeling: Connector 1; Internal thread mounting notch 101; Water inlet external thread connector 102; Water inlet pipe 2; Water inlet pipe outlet 201; Upper pipe opening 202; Upper end face of water inlet pipe 203; Positioning hole 204; Buffer umbrella 3; Umbrella top 301; Umbrella bottom opening 302; Inner sleeve 31; Inner convex tube part 311; Pin part 32; Pin 5. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] The water inlet pipe of the water heater of this utility model is a horizontally inserted buffer umbrella. Figures 1 to 4 As shown, the device includes a connecting seat 1 and a water inlet pipe 2. The lower end of the water inlet pipe 2 is fixedly connected to the connecting seat 1. Specifically, the upper part of the connecting seat 1 has an internal thread mounting recess 101, which is used to screw onto the water inlet of a storage-type electric water heater. For example, the lower end of the water inlet pipe 2 is screwed onto the internal stepped structure of the connecting seat 1, thereby fixing the water inlet pipe 2 relative to the connecting seat 1. The lower end of the connecting seat 1 has an external threaded connector 102, which is used to connect to a tap water pipe and connects to the water inlet pipe 2. Figure 2 As shown, an inlet pipe outlet 201 is formed at the upper end of the inlet pipe 2. Specifically, the inlet pipe outlet 201 is formed on the cylindrical wall of the inlet pipe 2. The number of inlet pipe outlets 201 can be four. The two lower inlet pipe outlets 201 are symmetrical about the central axis of the inlet pipe 2, and the two upper inlet pipe outlets 201 are also symmetrical about the central axis of the inlet pipe 2. The two upper inlet pipe outlets 201 and the two lower inlet pipe outlets 201 are circumferentially offset by 90 degrees. Figure 1 and Figure 3 As shown, the upper part of the water inlet pipe 2 is covered with a buffer umbrella 3, that is, the buffer umbrella 3 is an upright conical shell, and the water outlet 201 of the water inlet pipe is located inside the buffer umbrella 3, as shown. Figure 4 As shown, the buffer umbrella 3 has an umbrella top 301, as... Figure 2 and Figure 5 As shown, the water inlet pipe 2 has an upper pipe opening 202, such as Figure 4 As shown, the umbrella top 301 seals the upper end of the pipe opening 202. (As indicated...) Figure 7 As shown, an inner sleeve 31 is formed inside the upper end of the buffer umbrella 3, as... Figure 4 As shown, the upper end of the water inlet pipe 2 is located inside the inner sleeve 31, which is situated above the water outlet 201 of the water inlet pipe, thus preventing the inner wall of the inner sleeve 31 from blocking the water outlet 201. Figure 5 As shown, a positioning hole 204 is formed at the upper end of the water inlet pipe 2, such as... Figure 4 As shown, a pin 5 is provided in the positioning hole 204. The two ends of the pin 5 are connected to the inner sleeve 31. Therefore, the buffer umbrella 3 will be blocked by the pin 5 when it moves up or down relative to the water inlet pipe 2, thus preventing the buffer umbrella 3 from falling off the water inlet pipe 2.

[0021] like Figure 3As shown by the dotted arrow, tap water enters the connector 1 through the inlet threaded connector 102, then flows upward into the inlet pipe 2. The water then flows out through the outlet hole 201 into the buffer umbrella 3. The water flow is slowed down by the obstruction effect of the inner wall of the buffer umbrella 3. The water then flows downward between the inner wall of the buffer umbrella 3 and the outer wall of the inlet pipe 2 to the bottom opening 302, and is discharged into the lower part of the inner tank of the storage electric water heater. Because the buffer umbrella 3 obstructs and buffers the water flow sprayed from the outlet hole 201 of the inlet pipe, the water discharged through the bottom opening 302 has a small flow velocity. Since the buffer umbrella 3 is an upright conical shell, the bottom opening 302 has a large water flow cross-sectional area. Therefore, although the flow velocity of the water discharged from the bottom opening 302 is slow, the flow rate is sufficient for bathing. Because the flow rate of tap water flowing into the inner tank from the water inlet pipe of this utility model is relatively slow, it can prevent cold water from easily mixing into the upper layer of hot water in the inner tank, thus improving the hot water output effect of the storage-type electric water heater.

[0022] Furthermore, such as Figure 6 As shown, the upper end of the inner sleeve 31 is integrated with the umbrella top 301, as... Figure 2 and Figure 5 As shown, the water inlet pipe 2 has an upper end face 203, such as Figure 4 As shown, the upper end face 203 of the water inlet pipe is attached to the lower side of the umbrella top 301, so the upper end face 203 of the water inlet pipe prevents the umbrella top 301 from moving downward. Moreover, since the upper end of the inner sleeve 31 is integrated with the umbrella top 301, the upper end of the inner sleeve 31 combined with the umbrella top 301 can better cover and seal the upper pipe opening 202.

[0023] Furthermore, such as Figure 4 As shown, the inner sleeve 31 is adapted to be connected to the upper end of the water inlet pipe 2, so that the upper end of the water inlet pipe 2 can be radially positioned to prevent the buffer umbrella 3 from loosening in the radial direction of the water inlet pipe 2. Specifically, the inner sleeve 31 and the upper end of the water inlet pipe 2 are interference fit.

[0024] Furthermore, such as Figure 6 As shown, the inner sleeve 31 has an inner convex tube portion 311. Specifically, the inner convex tube portion 311 extends radially along the inner sleeve 31, such as... Figure 4 As shown, the inner convex tube 311 is adapted to be disposed in the positioning hole 204, and the two ends of the pin 5 are respectively adapted to be disposed in the corresponding inner convex tube 311. Thus, in the vertical direction, the positioning hole 204 positions the inner sleeve 31, which can prevent the buffer umbrella 3 from moving up and down relative to the water inlet pipe 2, and also prevent the pin 5 from moving in the diameter direction of the pin 5.

[0025] In the second embodiment of this utility model, such as Figure 7As shown, a pin portion 32 is formed on the lower side of the umbrella top 301, that is, the upper end of the pin portion 32 is integrated with the lower part of the umbrella top 301. The pin portion 32 is adapted to be inserted into the upper end pipe opening 202, so the pin portion 32 further closes the upper end pipe opening 202, and positions the umbrella top 301 radially in the water inlet pipe 2. The pin portion 32 and the upper end pipe opening 202 can be an interference fit, which is beneficial to the reliable installation of the buffer umbrella 3 and the water inlet pipe 2.

[0026] The buffer umbrella 3 can be made of silicone rubber, thus giving it excellent soft elasticity. The pin 5 can be made of stainless steel or nylon. During the installation of the buffer umbrella 3 and the water inlet pipe 2, first, flip the buffer umbrella 3 upwards, then insert the upper end of the water inlet pipe 2 into the inner sleeve 31, so that the pin 32 is inserted downwards into the upper pipe opening 202. During this process, the lower middle part of the inner sleeve 31 elastically expands and deforms, allowing the inner convex tube 311 to slide relative to the outer wall of the water inlet pipe 2. Then, when the inner convex tube 311 moves to the positioning hole 204, it can be inserted into the positioning hole 204. Next, the pin 5 is inserted (i.e., laterally) along the diameter direction of the water inlet pipe 2 into the inner convex tube 311. During this process, the pin 5 also passes through the positioning hole 204. Finally, flip the buffer umbrella 3 downwards to return it to its original position. Figure 7 In the state shown, the pin 5 and the inner convex tube 311 can be an interference fit to prevent the pin 5 from easily shifting along the axial direction of the pin 5.

Claims

1. A water inlet pipe for a horizontally inserted buffer umbrella type water heater, comprising a connecting seat (1) and an inlet pipe (2), wherein the lower end of the inlet pipe (2) is fixedly connected to the connecting seat (1), characterized in that: The upper end of the water inlet pipe (2) is provided with a water outlet hole (201). The upper part of the water inlet pipe (2) is covered with a buffer umbrella (3). The buffer umbrella (3) is provided with an umbrella top (301). The water inlet pipe (2) is provided with an upper pipe opening (202). The umbrella top (301) closes the upper pipe opening (202). An inner sleeve (31) is formed inside the upper end of the buffer umbrella (3). The upper end of the water inlet pipe (2) is located inside the inner sleeve (31). The inner sleeve (31) is located above the water outlet hole (201). The upper end of the water inlet pipe (2) is provided with a positioning hole (204). A pin (5) is provided inside the positioning hole (204). The two ends of the pin (5) are connected to the inner sleeve (31).

2. The water inlet pipe of the water heater with the horizontally inserted buffer umbrella according to claim 1, characterized in that: The upper end of the inner sleeve (31) is integrated with the umbrella top (301), and the water inlet pipe (2) has an upper end face (203) that is attached to the lower side of the umbrella top (301).

3. The water heater water inlet pipe with the cross-inserted buffer umbrella according to claim 1, characterized in that: The inner sleeve (31) is adapted to be connected to the upper end of the water inlet pipe (2).

4. The water inlet pipe of the water heater with the horizontally inserted buffer umbrella according to claim 1, characterized in that: The inner sleeve (31) has an inner convex tube portion (311), which is adapted to be disposed in the positioning hole (204), and the two ends of the pin (5) are respectively adapted to be disposed in the corresponding inner convex tube portion (311).

5. The water inlet pipe of the water heater with a horizontally inserted buffer umbrella according to any one of claims 1 to 4, characterized in that: A pin portion (32) is formed on the lower side of the umbrella top (301), and the pin portion (32) is adapted to be inserted into the upper end of the tube (202).

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