Water return device

Abstract

The utility model discloses a water return device, which is used for water facilities such as a connection interface and a pipeline between an angle valve and a faucet which are shielded by a washing table, and comprises a manual water pump 1, a water pipe 4 and a water pipe 5, the water pipe 4 and the water pipe 5 are connected onto the manual water pump 1, and ports of the water pipe 4 and the water pipe 5 are T-shaped 4-1 and 5-1 respectively. One group of ports on the same side of the T-shaped 4-1 and 5-1 are nuts, and the other group of ports on the same side of the T-shaped 4-1 and 5-1 are threads; the manual water pump 1 is composed of a blade 8, a handle 7 and a connecting shaft 6 and is attached to the fixing plate 19, and the connecting shaft 6 is fixedly connected with the blade 8 and the handle 7; and the connecting shaft 6 is also provided with an anti-reversal device 11. The water heater is simple in structure and convenient to operate, the optimized combination of the prior art is fully utilized, low-temperature water retained in the hot water pipe is conveyed back to the water heater through the cold water pipe to be heated and used, it is avoided that the low-temperature water is directly and completely discharged before hot water is used, and the purposes of saving water and facilitating water use are achieved.

Description

Technical Field

[0001] The invention belongs to the field of water saving and environmental protection, and in particular relates to a water return device. Background Art

[0002] In daily life, especially during the lower temperature periods of autumn, winter and spring, when people use hot (warm) water, they need to drain the lower temperature water retained in the hot water pipes first before the hot water can flow out of the faucet for use. This causes a waste of water resources and puts certain pressure on the rational use of water energy and environmental protection. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a water return device, which is installed in front of the faucet to return the lower temperature water retained in the hot water pipe 12 to the water heater through the cold water pipe 13 for heating or use, thereby avoiding the direct discharge of a large amount of lower temperature water before using the hot water, thereby achieving the purpose of saving water.

[0004] The objective of the present invention is achieved through the following technical solution: comprising a manual water pump 1 and water pipes 4 and 5 connected to the manual water pump 1, wherein the ports of the water pipes 4 and 5 are respectively "T"-shaped 4-1 and 5-1, and one group of ports on the same side of the "T"-shaped 4-1 and 5-1 is a nut and the other group of ports on the same side is a thread.

[0005] Preferably, a switch 2 is provided between the manual water pump 1 and the water pipe 5 , and a temperature sensing display device 3 is provided on the water pipe 4 .

[0006] Preferably, the manual water pump 1 is composed of blades 8, a handle 7, and a connecting shaft 6. The manual water pump 1 is attached to a fixed plate 19. The connecting shaft 6 connects the fixed blades 8 and the handle 7. The outside of the connecting shaft 6 pipeline is divided into an elliptical cylinder with a hinge shaft 9 in the middle. There is an elliptical sleeve 10 on the connecting shaft 6; the connecting shaft 6 is also provided with an anti-reversal device 11.

[0007] Compared with the prior art, the beneficial effect of the present invention is that the water return device is installed before the faucet. When hot (warm) water is needed, the manual water pump 1, the switch 2, the temperature sensing display device 3, the water pipe 4, and the water pipe 5 work in coordination. Without opening the faucet 18 to release the water with a lower temperature retained in the hot water pipe 12, the manual water pump 1 works to transport the water with a lower temperature retained in the hot water pipe 12 back to the water heater through the water pipe 4, the manual water pump 1, the water pipe 5, and the cold water pipe 13 for heating. When the heated water is transported to the water pipe 4 and the water temperature displayed by the temperature sensing display device 3 meets the use requirements, the faucet 18 can be opened again to use the hot (warm) water that meets the requirements, thereby achieving the purpose of significantly saving water. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural diagram of the water return device.

[0009] Figure 2 This is a schematic diagram of the manual water pump connecting shaft structure and its use and avoidance with the washbasin (wall).

[0010] Figure 3 This is a schematic diagram of the water flow when the return water device is connected and used.

[0011] In the figure, 1-manual water pump, 2-switch, 3-temperature sensing display device, 4-water pipe, 4-1-"T"-shaped port of water pipe 4, 5-water pipe, 5-1-"T"-shaped port of water pipe 5, 6-connecting shaft, 7-handle, 8-blade, 9-hinge shaft, 10-elliptical sleeve, 11-anti-reversal device, 12-hot water pipe, 13-cold water pipe, 14-angle valve hot water pipe, 15-angle valve cold water pipe, 16-faucet hot water pipe, 17-faucet cold water pipe, 18-faucet, 19-fixing plate. DETAILED DESCRIPTION

[0012] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0013] See Figure 1-3The present invention provides the following technical solutions: a water return device, comprising a manual water pump 1 and a water pipe 4 and a water pipe 5 connected to the manual water pump 1, wherein the ports of the water pipe 4 and the water pipe 5 are respectively "T"-shaped 4-1 and 5-1, and a group of ports on the same side of the "T"-shaped 4-1 and 5-1 are nut-shaped, and the other group of ports on the same side are threaded, wherein the nut end of the "T"-shaped port 4-1 of the water pipe 4 is connected to the angle valve hot water pipe 14, and the threaded end is connected to the faucet hot water pipe 16 (that is, the water pipe 4 plays the role of a three-way connection with the angle valve hot water pipe at one end, the faucet hot water pipe at one end, and the manual water pump at one end); the nut end of the "T"-shaped port 5-1 of the water pipe 5 is connected to the angle valve cold water pipe 15, and the threaded end is connected to the faucet cold water pipe 17 (that is, the water pipe 5 plays the role of a three-way connection with the angle valve cold water pipe at one end, the faucet cold water pipe at one end, and the manual water pump at one end); when hot (warm) water is needed, the faucet 18 is not opened in this first stage (to avoid the hot water pipe 1 2 is released), but the user operates the manual water pump 1 to cause the water to flow in the closed circulation pipeline formed by the hot water pipe 12, the angle valve hot water pipe 14, the "T" shape 4-1, the water pipe 4, the manual water pump 1, the water pipe 5, the "T" shape 5-1, the angle valve cold water pipe 15, the cold water pipe 13, the water heater, and the hot water pipe 12, thereby forming the same effect as water flowing through the water heater after turning on the faucet 18, and starting the water heater to heat the water (at this time, because the faucet 18 is not turned on, the water flowing from the hot water pipe 12 through the "T" shape 4-1 cannot flow to the faucet hot water pipe 16, but flows along the water pipe 4 toward the manual water pump 1; similarly, when the water flows through the "T" shape 5-1, it cannot flow to the faucet cold water pipe 17, but flows along the angle valve cold water pipe 15 and the cold water pipe 13 toward the water heater under the action of the manual water pump 1; therefore, at this time, because the faucet 18 is closed, the water only flows in the aforementioned closed circulation pipeline under the power of the manual water pump 1 [see Figure 3 ]).

[0014] Furthermore, a switch 2 is provided between the manual water pump 1 and the water pipe 5. As described in paragraph 12 above, when hot (warm) water is needed, the switch 2 is turned on to allow the manual water pump 1 to operate, so that the water in the hot water pipe 12 flows along the closed circulation pipeline described in paragraph 12. When the switch 2 is turned off, the water is prohibited from flowing through the water pipe 4, the manual water pump 1, and the water pipe 5. A temperature sensing and display device 3 is provided on the water pipe 4 for sensing and displaying the temperature change of the water passing through the water pipe 4. When the water heated by the water heater is delivered to the water pipe 4, the temperature sensing and display device 3 senses and displays that the water temperature meets the use requirement. When the faucet 18 is turned on, the switch 2 is turned off and the manual water pump 1 is stopped. At this time, the flow pattern of the water in the water heater remains unchanged, and the water heater continues to operate to heat the water. When the water heated by the water heater flows from the hot water pipe 12 through the angle valve hot water pipe 14 to the "T" shape 4-1, it cannot flow to the water pipe 4 because the switch 2 is turned off, but flows to the faucet hot water pipe 16 because the faucet 18 is turned on, and then flows out through the faucet 18 for the user to use. In this second stage (the manual water pump 1 stops working), the use of the faucet 18 is the same as when the water return device is not installed. It is only necessary to adjust the ratio of hot and cold water through the faucet 18 to always use hot (warm) water that meets the requirements.

[0015] Furthermore, the manual water pump 1 is composed of a blade 8, a handle 7, and a connecting shaft 6, which is attached to a fixing plate 19. The connecting shaft 6 connects the fixed blade 8 and the handle 7. The user rotates the handle 7 to allow the water in the closed circulation pipe to flow through the blade 8; the manual water pump 1 is fixed to the washbasin (or wall) by glue (or screws) on the fixing plate 19 to facilitate the rotation of the handle 7; the outer portion of the connecting shaft 6 pipe is divided into an elliptical cylinder, with a hinge shaft 9 in the middle, and an elliptical sleeve 10 on the connecting shaft 6. The hinge shaft can be rotated and bent so that the connecting shaft 6 can be bent downward when the return water device is not in use to avoid occupying too much lateral space. The connecting shaft 6 and the sleeve 10 are both consistent elliptical cylinders, which facilitate the transmission of rotational force and protect the hinge shaft 9 from damage; the connecting shaft 6 is also provided with an anti-reversal device 11 to ensure that the manual water pump 1 can only rotate in one direction at all times, ensuring that the water after the manual water pump 1 acts also always flows in one direction, to ensure that water is filled from the inlet to the water heater to avoid damage to the water heater.

[0016] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention may be used in other combinations, modifications, and environments, and may be modified within the scope of the present invention through the teachings above or through techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A water return device, characterized in that: The invention comprises a manual water pump (1) and a water pipe A (4) and a water pipe B (5) connected to the manual water pump (1). The ports of the water pipe A (4) and the water pipe B (5) are respectively "T"-shaped A (4-1) and B (5-1). One group of ports on the same side of the "T"-shaped A (4-1) and B (5-1) is a nut, and the other group of ports on the same side is a thread. The manual water pump (1) is composed of a blade (8), a handle (7), and a connecting shaft (6). The manual water pump (1) is attached to a fixed plate (19). The connecting shaft (6) connects the fixed blade (8) and the handle (7). The connecting shaft (6) is an elliptical cylinder with a hinge shaft (9) in the middle and an elliptical sleeve (10) on the connecting shaft (6). The connecting shaft (6) is also provided with an anti-reversal device (11).

2. A water return device according to claim 1, characterized in that: A switch (2) is provided between the manual water pump (1) and the water pipe B (5), and a temperature sensing display device (3) is provided on the water pipe A (4).

Images