Manual water return device

Abstract

The utility model discloses a manual water return device, which is used for shower water facilities convenient to touch an angle valve and comprises an H-shaped water pipe, a manual water pump 1, a valve 2 and water temperature sensing display equipment 11, the manual water pump 1, the valve 2 and the water temperature sensing display equipment 11 are arranged on the H-shaped water pipe, and the H-shaped water pipe is formed by respectively communicating two ends of a water pipe 5 with the middles of two water pipes 3 and 4 which are parallel to each other. One group of ports on the same side of the water pipes 3 and 4 are threads 3-1 and 4-1 respectively, and the other group of ports on the same side of the water pipes 3 and 4 are nuts 3-2 and 4-2 respectively; the manual water pump 1 is composed of a blade 7, a handle 8 and a connecting shaft 8-2, the blade 7 is located in the water pipe 5, the handle 8 is located on the outer side of the water pipe 3, and the connecting shaft 8-2 is fixedly connected with the blade 7 and the handle 8; the valve 2 is located on the water pipe 5, and the water pipe 5 is provided with a water temperature sensing display device 11. The water-saving device is simple in structure and convenient to operate, the optimized combination of the prior art is fully utilized, low-temperature water detained in the hot water pipe is conveyed back to the water heater through the cold water pipe to be heated and used through the work of the manual water pump 1, and the purpose of saving water is achieved.

Description

Technical Field

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

[0002] In daily life, especially during the lower temperature periods of autumn, winter and spring, when people use warm (hot) water, they need to drain the lower temperature water retained in the hot water pipes 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 manual water return device, which is installed in front of the shower water pipe. The lower temperature water retained in the hot water pipe 12 is returned to the water heater through the cold water pipe 13 for heating or use, 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 solutions: a manual water return device, comprising an "H"-shaped water pipe and a manual water pump 1, a valve 2, and a water temperature sensing display device 11 arranged on the "H"-shaped water pipe, wherein the "H"-shaped water pipe is composed of two parallel water pipes B3 and C4 connected at both ends of the water pipe A5, a group of same-side ports of the water pipes B3 and C4 are respectively threaded B3-1 and C4-1, and another group of same-side ports are respectively nuts B3-2 and C4-2; the manual water pump 1 is composed of a blade 7, a handle 8, and a connecting shaft 8-2, the blade 7 is located in the water pipe A5, the handle 8 is located outside the water pipe B3, and the connecting shaft 8-2 connects and fixes the blade 7 and the handle 8; the valve 2 is located on the water pipe A5, and a water temperature sensing display device 11 is provided on the water pipe A5.

[0005] Preferably, the connecting shaft 8-2 of the manual water pump 1 is an elliptical cylinder outside the water pipe, with a hinge shaft 9 in the middle and an elliptical sleeve 8-1 on the connecting shaft 8-2; an anti-reversal device 6 is provided on the connecting shaft 8-2 outside the water pipe B3.

[0006] Compared with the prior art, the beneficial effects of the present application are that the manual water returning device is installed between the angle valves 14, 15 and the shower water pipes 16, 17, when hot (warm) water is needed, through the coordinated action of the "H" shaped water pipe, the manual water pump 1, the valve 2 and the water temperature sensing display device 11, without opening the shower faucet 18 to discharge the water with lower temperature remaining in the hot water pipe 12, through the operation of the manual water pump 1, the water with lower temperature remaining in the hot water pipe 12 is transmitted back to the water heater through the water pipe B3, the water pipe A5, the water pipe C4 and the cold water pipe 13 for heating, when the heated water is transmitted to the water pipe A5 and the water temperature displayed by the water temperature sensing display device 11 reaches the requirement of use, the shower faucet 18 is opened to use the warm water meeting the requirement. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of the manual water returning device.

[0008] Figure 2 It is a structural schematic diagram of the connecting shaft of the manual water pump.

[0009] Figure 3 It is a schematic diagram of water flow when the manual water returning device is connected and used.

[0010] In the figure, 1 is a manual water pump, 2 is a valve, 3 is a water pipe B, 3-1 is a thread B, 3-2 is a nut B, 4 is a water pipe C, 4-1 is a thread C, 4-2 is a nut C, 5 is a water pipe A, 6 is an anti-reverse device, 7 is a vane, 8 is a handle, 8-1 is an oval sleeve, 8-2 is a connecting shaft, 9 is a hinge shaft, 11 is a water temperature sensing display device, 12 is a hot water pipe, 13 is a cold water pipe, 14 is an angle valve hot water pipe, 15 is an angle valve cold water pipe, 16 is a shower hot water pipe, 17 is a shower cold water pipe, 18 is a shower faucet, and 19 is a shower head. DETAILED DESCRIPTION

[0011] The technical solutions of the present application will be described clearly and completely below in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort fall within the protection scope of the present application.

[0012] REFERENCE Figure 1-3The present invention provides the following technical solutions: a manual water return device, including an "H"-shaped water pipe and a manual water pump 1, a valve 2 and a water temperature sensing display device 11 arranged on the "H"-shaped water pipe, wherein the "H"-shaped water pipe is composed of a water pipe A5 with two ends connected to the middle of two parallel water pipes B3 and C4, and a group of ports on the same side of the water pipes B3 and C4 are respectively threaded B3-1 and C4-1, and the threaded ports are connected to the shower water pipe, wherein the thread B3-1 is connected to the shower hot water pipe. The water pipe 16 and the thread C4-1 are connected to the shower cold water pipe 17. The other set of ports on the same side of the water pipes B3 and C4 are nuts B3-2 and C4-2 respectively. The nuts are connected to the angle valve that supplies water to the shower, wherein the nut B3-2 is connected to the angle valve hot water pipe 14 and the nut C4-2 is connected to the angle valve cold water pipe 15; the manual water pump 1 is composed of a blade 7, a handle 8, and a connecting shaft 8-2. The blade 7 is located in the water pipe A5, the handle 8 is located outside the water pipe B3, and the connecting shaft 8-2 is connected to the fixed The fixed blades 7 and the handle 8 are used by the user to rotate the handle 8, so that the blades 7 can cause water to flow through the closed circulation pipeline formed by the hot water pipe 12, the water pipe B3, the water pipe A5, the water pipe C4, the cold water pipe 13, the water heater, and the hot water pipe 12, thereby creating 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, the manual water pump 1 is working. When water flows from the hot water pipe 12, the angle valve hot water pipe 14, and the nut B3-2 into the water pipe B3, it cannot flow into the shower hot water pipe 16 because the shower faucet 18 is closed. When the valve 2 is opened, the water flows along the water pipe A5 to the water pipe C4. Similarly, when the water flows into the water pipe 4, it cannot flow into the shower cold water pipe 17 because the shower faucet 18 is closed. Instead, it flows along the nut C4-2, 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 The valve 2 is located on the water pipe A5. When opened, it allows water to flow from the water pipe B3 through the water pipe A5 to the water pipe C4. When closed, it prohibits the water in the water pipe B3 from flowing through the water pipe A5 to the water pipe C4. A water temperature sensor 11 is provided on the water pipe A5 to sense and display the temperature change of the water passing through the water pipe A5. When the displayed water temperature meets the required usage, the faucet 18 is opened and the valve 2 is closed, and the rotation of the handle 8 is stopped. At this time, the flow pattern of water in the water heater remains unchanged, and the water heater continues to operate and heat the water. The heated water flows through the hot water pipe 12, the triangle valve hot water pipe 14, the water pipe B3, and the thread B3-1 into the shower hot water pipe 16, and is then transported to the shower head 19 through the faucet 18. At this time, the faucet 18 can be used in the same way as when the manual water return device is not installed. The hot (warm) water that meets the requirements can be directly used by adjusting the hot and cold water ratio through the faucet 18.

[0013] Furthermore, the connecting shaft 8-2 of the manual water pump 1 is an elliptical cylinder outside the water pipe, with a hinge shaft 9 in the middle, and an elliptical sleeve 8-1 on the connecting shaft 8-2. The hinge shaft can be rotated and bent so that the connecting shaft 8-2 can be bent downward when the return water device is not in use, avoiding occupying too much horizontal space. The connecting shaft 8-2 and the sleeve 8-1 are both consistent elliptical cylinders, which is conducive to transmitting rotational force during rotation and protecting the hinge shaft 9 from damage; on the connecting shaft 8-2, there is an anti-reversal device 6 located on the outside of the water pipe B3 to ensure that the manual water pump 1 can only rotate in one direction at all times, and to ensure that the water after the manual water pump 1 does work also always flows in one direction, so as to ensure that water is injected into the water heater from the inlet to avoid damaging the water heater.

[0014] 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 manual water return device, characterized in that: The invention comprises an "H"-shaped water pipe and a manual water pump (1), a valve (2), and a water temperature sensing display device (11) arranged on the "H"-shaped water pipe. The "H"-shaped water pipe is composed of a water pipe A (5) with two ends connected to the middle parts of two parallel water pipes B (3) and C (4). A group of ports on the same side of the water pipes B (3) and C (4) are respectively screw threads B (3-1) and C (4-1), and another group of ports on the same side are respectively nuts B (3-2) and C (4-2). The manual water pump (1) is composed of a blade (7), a handle (8), and a connecting shaft (8-2). The blade (7) is located inside the water pipe A (5), the handle (8) is located outside the water pipe B (3), and the connecting shaft (8-2) connects and fixes the blade (7) and the handle (8). The valve (2) is located on the water pipe A (5), and the water temperature sensing display device (11) is provided on the water pipe A (5).

2. A manual water return device according to claim 1, characterized in that: The connecting shaft (8-2) of the manual water pump (1) is an elliptical cylinder outside the water pipe, with a hinge shaft (9) in the middle, and an elliptical sleeve (8-1) on the connecting shaft (8-2); an anti-reversal device (6) is provided on the connecting shaft (8-2) outside the water pipe B (3).

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