Water outlet pipe structure and electric heating faucet

Abstract

The utility model discloses a water outlet pipe structure and an electric heating faucet. The water outlet pipe structure comprises a water outlet connector used for being connected to the liquid outlet end of hot water supply equipment, a spray cap used for discharging water and a water outlet pipe with the two ends connected to the water outlet connector and the spray cap respectively. The water outlet pipe structure further comprises an inner pipe arranged in the water outlet pipe in a penetrating mode, and the two ends of the inner pipe are connected to the water outlet end of the water outlet connector and the water inlet end of the spray cap correspondingly so that hot water in the hot water supply equipment can flow out of the outside sequentially through the water outlet connector, the inner pipe and the spray head. Moreover, a gap is formed between the outer wall of the inner pipe and the inner wall of the water outlet pipe, and a blocking piece is arranged in the gap and used for preventing the inner pipe and the water outlet pipe from making contact for heat exchange. According to the technical scheme, the inner pipe and the water outlet pipe do not make contact for heat exchange, then the outer wall of the water outlet pipe cannot be heated and hot due to the fact that hot water flows through the inner pipe, the problem that a user is scalded due to touching the outer wall of the water outlet pipe is avoided, and the user experience is better and safer.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water supply equipment and water outlet components thereof, in particular to a water outlet pipe structure and an electric water faucet. Background Art

[0002] Hot water supply equipment includes various types of equipment such as water dispensers, electric faucets, small kitchen appliances, and bathroom heaters. They all have water outlet components for discharging hot water, which basically include water outlet joints, water outlet pipes, and spray caps connected in sequence. In consideration of service life, the water outlet pipes are usually made of stainless steel or heat-resistant plastic. However, it is inevitable that when hot water flows through the water outlet pipe, the outer wall of the water outlet pipe will become hot. Users will inevitably feel the high temperature when holding or touching it directly, especially since metal pipes are easy to conduct heat, which may cause safety hazards or poor user experience. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, a water outlet pipe structure and an electric water faucet are now provided, so that the outer wall of the water outlet pipe will not heat up due to the hot water flowing through the inner pipe, thereby avoiding the problem of users being scalded by touching the outer wall of the water outlet pipe. The user experience is better and safer, so as to overcome at least one of the above-mentioned technical defects.

[0004] The specific technical solutions are as follows:

[0005] A water outlet pipe structure is suitable for use in a water-heating device and as a water outlet component. The water outlet pipe structure comprises a water outlet joint connected to a liquid outlet of the water-heating device, a spray cap for discharging water, and a water outlet pipe with two ends respectively connected to the water outlet joint and the spray cap;

[0006] The water outlet pipe structure also includes an inner pipe that is inserted into the water outlet pipe, and the two ends of the inner pipe are respectively connected to the water outlet end of the water outlet joint and the water inlet end of the spray cap, so as to allow the hot water in the water supply device to flow out through the water outlet joint, the inner pipe and the spray cap in sequence;

[0007] In addition, there is a gap between the outer wall of the inner tube and the inner wall of the water outlet pipe, and a barrier is arranged in the gap to prevent the inner tube and the water outlet pipe from contacting each other for heat exchange.

[0008] Preferably, the barrier comprises at least one annular support plate, which is sleeved on the outer circumference of the inner tube and whose outer edge abuts against the inner wall of the outlet pipe, and the inner diameter of the outlet pipe is larger than the outer diameter of the annular support plate.

[0009] Preferably, the barrier is a heat-resistant material filled in the gap.

[0010] Preferably, the inner tube is a silicone tube and the water outlet pipe is a metal tube.

[0011] Preferably, a water outlet channel is formed through the water outlet joint, and a circular groove is formed around the water outlet channel. One end of the water outlet pipe is rotatably assembled in the circular groove, and the inner pipe is made of a flexible heat-resistant material;

[0012] An angle limiting structure is provided between the end of the water outlet pipe extending into the circular groove and the circular groove, so as to allow the water outlet pipe to rotate circumferentially within a certain angle and limit further rotation of the water outlet pipe.

[0013] Preferably, the angle limiting structure includes a limiting protrusion formed on the bottom surface of the circular groove and an arc-shaped flange formed by extending the end of the water outlet pipe, so that either side of the arc-shaped flange abuts against the limiting protrusion to be restricted from rotating.

[0014] Preferably, the certain angle is 180 degrees, and the radian of the arc-shaped flange is 180 degrees.

[0015] Preferably, a connecting column is further formed around the water outlet channel in the circular groove. One end of the inner pipe is expandedly connected to the connecting column, and the other end is expandedly connected to the connecting end of the spray cap.

[0016] Preferably, an elbow joint is rotatably installed in the circular groove, and one end of the elbow joint extends into the water outlet pipe and is expandedly connected to the inner pipe; one end of the water outlet pipe is riveted or threadedly connected to the elbow joint.

[0017] Preferably, the spray cap has a cap portion and a housing sleeved on the outer periphery of the cap portion. The water outlet pipe is threadedly connected to the housing, and the cap portion is provided with a stepped portion. One end of the inner pipe extends outward to form a disc-shaped structure and abuts against the stepped portion. A rubber gasket is provided between the disc-shaped structure and the water outlet pipe to limit the connection between the cap portion and the inner pipe.

[0018] The present utility model further provides an electric water faucet, which includes a body main body with a water tank formed inside. A heating module is arranged in the water tank. The lower end of the body main body forms a liquid inlet end and the upper end forms a liquid outlet end. The liquid outlet end is connected to the water outlet pipe structure as described above.

[0019] The beneficial effects of the above technical solutions are as follows:

[0020] (1) The water outlet pipe structure is applicable to hot water supply equipment, including a water outlet joint, a spray cap, a water outlet pipe, and an inner pipe disposed inside the water outlet pipe. There is a gap between the outer wall of the inner pipe and the inner wall of the water outlet pipe, and a barrier is provided, so that the inner pipe and the water outlet pipe do not contact and exchange heat. Furthermore, the outer wall of the water outlet pipe will not become hot due to the hot water flowing through the inner pipe, avoiding the problem that the user is scalded by touching the outer wall of the water outlet pipe. The user experience is better and safer.

[0021] (2) The setting of the angle limiting structure can prevent the inner pipe from being damaged due to excessive twisting or the liquid flow rate in the inner pipe from being affected due to excessive twisting.

[0022] (3) The connection design between the water outlet pipe and the elbow joint enables the water outlet pipe, the elbow joint, and the inner pipe to rotate 360 degrees together within the circular groove 10, preventing the problem of the inner pipe being twisted and ensuring that the inner pipe and the water outlet pipe are blocked from heat conduction. Description of the Drawings

[0023] Figure 1 Stereogram of the first embodiment of the water outlet pipe structure of the present utility model;

[0024] Figure 2 Cross-sectional view of the first embodiment of the water outlet pipe structure of the present utility model;

[0025] Figure 3 Exploded view of the first embodiment of the water outlet pipe structure of the present utility model;

[0026] Figure 4 Cross-sectional view of the water outlet pipe structure of the present utility model applied to a hot water supply device;

[0027] Figure 5 is Figure 4 Partial enlarged view of part I in

[0028] Figure 6 is Figure 4 Partial enlarged view of part II in

[0029] Figure 7 Stereogram of the water outlet joint in the first embodiment of the water outlet pipe structure of the present utility model;

[0030] Figure 8 Stereogram of the end of the water outlet pipe in the first embodiment of the water outlet pipe structure of the present utility model.

[0031] Figure 9 Cross-sectional view of the second embodiment of the water outlet pipe structure of the present utility model;

[0032] Figure 10 is Figure 9 Partial enlarged view of part III in

[0033] Figure 11 is Figure 9 Partial enlarged view of part IV in

[0034] Figure 12 Stereogram of the electric water faucet of the present utility model. Detailed Description of the Preferred Embodiments

[0035] In order to make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the following embodiments are specifically described in conjunction with the accompanying drawings.

[0036] Embodiment 1

[0037] Refer to Figures 1 to 8 As shown, the water outlet pipe structure provided in this embodiment is applicable to a hot water supply device and serves as a water outlet component. The water outlet pipe structure includes a water outlet joint 1 for connecting to the liquid outlet end of the hot water supply device, a spray cap 2 for discharging water, and a water outlet pipe 3 with two ends respectively connected to the water outlet joint 1 and the spray cap 2. Among them, the water outlet pipe structure further includes an inner pipe 4 disposed inside the water outlet pipe 3, and both ends of the inner pipe 4 are respectively connected to the water outlet end of the water outlet joint 1 and the water inlet end of the spray cap 2, for allowing the hot water in the hot water supply device to flow out of the external through the water outlet joint 1, the inner pipe 4, and the nozzle in sequence;

[0038] Moreover, there is a gap between the outer wall of the inner pipe 4 and the inner wall of the water outlet pipe 3, and a barrier member 5 is disposed in the gap for preventing the inner pipe 4 and the water outlet pipe 3 from contacting and exchanging heat.

[0039] Based on the above technical solution, the water outlet pipe structure is applicable to a hot water supply device, including a water outlet joint 1, a spray cap 2, a water outlet pipe 3, and an inner pipe 4 disposed inside the water outlet pipe 3. There is a gap between the outer wall of the inner pipe 4 and the inner wall of the water outlet pipe 3 and a barrier member 5 is provided, such that the inner pipe 4 and the water outlet pipe 3 do not contact and exchange heat, thereby preventing the outer wall of the water outlet pipe 3 from getting hot due to the hot water flowing through the inner pipe 4, avoiding the problem that the user is scalded when touching the outer wall of the water outlet pipe 3, and providing a better and safer user experience.

[0040] In a preferred embodiment, specifically as shown in Figure 2 and Figure 3 As shown, the barrier member 5 includes at least one annular support plate, the annular support plate is sleeved on the outer periphery of the inner pipe 4 and the outer edge abuts against the inner wall of the water outlet pipe 3, and the inner diameter of the water outlet pipe 3 is greater than the outer diameter of the annular support plate. Further, the number of annular support plates is three. Further, the inner pipe 4 is a silicone tube and the water outlet pipe 3 is a metal tube. That is, the inner pipe 4 is configured as a flexible heat-resistant tube, and the water outlet pipe 3 can also be designed as a plastic tube and can be designed as a left-right assembled structure, which is not limited thereto.

[0041] In a preferred embodiment, the barrier member 5 is a heat-resistant material filled in the gap. Specifically, it can be various materials such as wood chips, sawdust, asbestos, etc., which is not limited thereto.

[0042] In a preferred embodiment, in combination with Figure 4 , Figure 5 , and Figure 7 and Figure 8As shown in the figure, a water outlet channel 13 is formed through the water outlet joint 1, and a circular groove 10 is formed around the water outlet channel 13. One end of the water outlet pipe 3 is assembled in the circular groove 10 in a circumferentially rotatable manner, and the inner pipe 4 is made of a flexible heat-resistant material; there is an angular limiting structure between the end of the water outlet pipe 3 extending into the circular groove 10 and the circular groove 10, which is used to allow the water outlet pipe 3 to rotate circumferentially within a certain angle and limit the further rotation of the water outlet pipe 3. This can avoid excessive distortion of the inner pipe 4 and damage, or excessive distortion that affects the liquid flow rate in the inner pipe 4.

[0043] As a further preferred embodiment, the angular limiting structure includes a limiting protrusion 11 formed on the bottom surface of the circular groove 10 and an arc-shaped flange 31 formed by extending the end of the water outlet pipe 3, so that either side of the arc-shaped flange 31 abuts against the limiting protrusion 11 to be restricted from rotating. Further, the above-mentioned certain angle is 180 degrees, and the radian of the arc-shaped flange 31 is 180 degrees. However, it is not limited thereto, and it can also be designed to be larger or smaller based on requirements. Further, the water outlet pipe 3 has a bent pipe structure, but it can also be designed as a hook-shaped, semi-frame-shaped or other shapes, and is not limited thereto.

[0044] In a preferred embodiment, in combination with Figures 4 to 6 As shown in the figure, in this embodiment, a connecting column 12 is further formed around the water outlet channel 13 in the circular groove 10, and one end of the inner pipe 4 is expanded and connected to the connecting column 12, and the other end is expanded and connected to the connecting end 22 of the spray cap 2. The liquid flow holes 23 of the spray cap 2 are communicated to the inner pipe 4 through the connecting end 22, and the expansion connection means that the inner diameter of the inner pipe 4 is enlarged and then sleeved on the outer periphery of the connecting column 12 or the connecting end 22 to achieve the purpose of flexibly sealing and connecting the two, and a tie strap can be additionally designed to tie tightly at the connection position.

[0045] Embodiment Two

[0046] Refer to Figures 9 to 11 As shown in the figure, the water outlet pipe structure provided in this embodiment is basically the same as that in Embodiment One above. The difference is that in this embodiment, a water outlet channel 13 is formed through the water outlet joint 1, and a circular groove 10 is formed around the water outlet channel 13, and the inner pipe can be designed to be flexible or rigid;

[0047] A elbow joint 15 is also installed in the circular groove 10, and one end of the elbow joint 15 extends into the water outlet pipe 3 and is expandably connected to the inner pipe 4. Further, one end of the water outlet pipe 3 is riveted or threadedly connected to the elbow joint 15. However, it can also be other connection methods such as tight fit connection, and is not limited thereto. Further, the spray cap 2 has a cap portion 20 and a housing 21 sleeved on the outer periphery of the cap portion 20. The water outlet pipe 3 is threadedly connected to the housing 21, and the cap portion 20 is formed with a stepped portion 24. One end of the inner pipe 4 extends outward to form a disc-shaped structure 41 and abuts against the stepped portion 24. A rubber gasket 9 is provided between the disc-shaped structure 41 and the water outlet pipe 3 to limit the connection between the cap portion 20 and the inner pipe 4.

[0048] It should be noted that in this embodiment, the connection design between the water outlet pipe 3 and the elbow joint 15 enables the water outlet pipe 3, the elbow joint 15, and the inner pipe 4 to rotate 360 degrees together in the circular groove 10 without causing the problem of the inner pipe being twisted.

[0049] In addition, the hot water supply device in this embodiment and the first embodiment is preferably an electric water tap, but it can also be a hot water supply device such as a small kitchen water heater. A connection cap 14 is further provided outside the water outlet joint 1. The connection cap 14 is used to threadedly connect the water inlet joint to the hot water supply device, which is a relatively common structure in the art, so it is omitted here. A plurality of sealing rings are sleeved on the outer periphery of the end of the water outlet pipe 3 extending into the circular groove 10.

[0050] Embodiment Three, in combination with Figure 12 and Figure 4 as shown in, the electric water tap provided in this embodiment includes a body main body 6 with a water tank 62 formed inside. A heating module 7 is provided in the water tank 62. The lower end of the body main body 6 forms a liquid inlet end 61 and the upper end forms a liquid outlet end 63 communicating with the water tank 62. Among them, the liquid outlet end 63 is connected to the water outlet pipe structure as described in any one of the above Embodiment One or Two. Further, the water outlet joint 1 of the water outlet pipe structure is configured as a part of the cover of the water tank 62. And a control valve assembly 8 for controlling the on-off of the liquid flow is further provided on one side of the body.

[0051] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. An outlet pipe structure, which is applicable to a hot water supply device and serves as an outlet component. The outlet pipe structure includes an outlet joint (1) for connecting to the liquid outlet end of the hot water supply device, a spray cap (2) for discharging water, and an outlet pipe (3) with two ends respectively connected to the outlet joint (1) and the spray cap (2); and it is characterized in that, the outlet pipe structure further includes an inner pipe (4) disposed inside the outlet pipe (3), and two ends of the inner pipe (4) are respectively connected to the water outlet end of the outlet joint (1) and the water inlet end of the spray cap (2), so as to allow the hot water in the hot water supply device to flow out to the outside in sequence through the outlet joint (1), the inner pipe (4), and the spray head; moreover, there is a gap between the outer wall of the inner pipe (4) and the inner wall of the outlet pipe (3), and a barrier member (5) is arranged in the gap to prevent the inner pipe (4) and the outlet pipe (3) from contacting and exchanging heat with each other.

2. The water outlet pipe structure according to claim 1, characterized in that, The barrier member (5) includes at least one annular support plate, the annular support plate is sleeved on the outer periphery of the inner pipe (4) and the outer edge abuts against the inner wall of the outlet pipe (3), and the inner diameter of the outlet pipe (3) is larger than the outer diameter of the annular support plate.

3. The water outlet pipe structure according to claim 1, characterized in that The barrier member (5) is a heat-insulating material filled in the gap.

4. The water outlet pipe structure according to claim 2 or 3, characterized in that, The inner pipe (4) is a silica gel pipe, and the outlet pipe (3) is a metal pipe.

5. The water outlet pipe structure according to claim 1, characterized in that, An outlet channel (13) is formed through the outlet joint (1), and a circular groove (10) is formed around the outlet channel (13). One end of the outlet pipe (3) is assembled in the circular groove (10) in a circumferentially rotatable manner, and the inner pipe (4) is made of a flexible heat-resistant material; there is an angular limiting structure between one end of the outlet pipe (3) extending into the circular groove (10) and the circular groove (10), so as to allow the outlet pipe (3) to rotate circumferentially within a certain angle and limit the further rotation of the outlet pipe (3).

6. The water outlet pipe structure according to claim 5, wherein, The angular limiting structure includes a limiting protrusion (11) formed on the bottom surface of the circular groove (10) and an arc-shaped flange (31) formed by extending the end of the outlet pipe (3), so that either side of the arc-shaped flange (31) abuts against the limiting protrusion (11) to be limited from rotating.

7. The water outlet pipe structure according to claim 5, characterized in that, A connecting column (12) is further formed around the outlet channel (13) in the circular groove (10). One end of the inner pipe (4) is expanded and connected to the connecting column (12), and the other end is expanded and connected to the connecting end (22) of the spray cap (2).

8. The water outlet pipe structure according to claim 1, characterized in that, An outlet channel (13) is formed through the outlet joint (1), and a circular groove (10) is formed around the outlet channel (13); a elbow joint (15) is rotatably installed in the circular groove (10), and one end of the elbow joint (15) extends into the outlet pipe (3) and is expanded and connected to the inner pipe (4); one end of the outlet pipe (3) is riveted or threadedly connected to the elbow joint (15).

9. The water outlet pipe structure according to claim 8, characterized in that, The spray cap (2) has a cap portion (20) and a housing (21) sleeved on the outer periphery of the cap portion (20). The water outlet pipe (3) is threadedly connected to the housing (21). The cap portion (20) is formed with a stepped portion (24). One end of the inner pipe (4) extends outward to form a disc-shaped structure (41) which abuts against the stepped portion (24). A rubber gasket (9) is arranged between the disc-shaped structure (41) and the water outlet pipe (3) to limit the connection between the cap portion (20) and the inner pipe (4).

10. An electric water heater faucet, comprising a body main body (6) internally provided with a water tank (62), a heating module (7) is arranged in the water tank (62), a liquid inlet end (61) is formed at the lower end of the body main body (6), and a liquid outlet end (63) is formed at the upper end thereof, characterized in that, The liquid outlet end (63) is connected to the water outlet pipe structure according to any one of claims 1 to 9.

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