Water return mechanism for hot water supply

Abstract

The utility model belongs to the field of hot water supply, and particularly relates to a water return mechanism for hot water supply, which comprises a water return mechanism body. Water heated by the heater is conveyed into the water storage tank through the hot water pipe, water in the cold water pipe is conveyed into the communicating pipe and finally flows out of the water outlet pipe, after the water outlet pipe stops discharging water, the electromagnetic valve is opened, and residual water in the water outlet pipe guides water stored in the water outlet pipe into the water storage tank through the flow guide pipe. And finally, the water flows into the bottom of the water storage tank and is guided into the input pipe by the flow guide block, then the water in the input pipe is conveyed into the output pipe by the water pump, and finally returns to the heater, so that the return water filtering effect is realized, and the problem that redundant water is remained in a pipeline after hot water supply is finished and is wasted is solved. Due to the fact that some trace elements in water can rust a pipeline and generate bacteria after a long time, hot water flowing out contains germs, and health of people is harmed.

Description

Technical Field

[0001] This utility model relates to the field of hot water supply, specifically a return water mechanism for hot water supply. Background Technology

[0002] A hot water supply system is a water supply system that ensures users can obtain hot water in the required quantity, temperature, pressure, and quality on time. The composition of a hot water supply system varies depending on the user, building characteristics, hot water consumption, water usage patterns, distribution of water points, heat source conditions, water heating equipment, water usage requirements, pipeline layout, circulation method, and operation and management conditions. In order to ensure that the hot water is hot as soon as it is dispensed, a return water mechanism is usually used in conjunction with it.

[0003] During the hot water supply process, hot water usually flows out of the outlet pipe after the temperature is adjusted. However, after use, excess water will remain in the pipe. Over time, some trace elements in the water can cause the pipe to rust and produce bacteria, resulting in the hot water carrying germs and endangering people's health. Utility Model Content

[0004] To overcome the shortcomings of existing technology, during the hot water supply process, the temperature is usually adjusted and hot water flows out from the outlet pipe. However, after use, excess water remains in the pipe. Over time, some trace elements in the water can cause the pipe to rust and generate bacteria. This utility model proposes a return water mechanism for hot water supply.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a water return mechanism for hot water supply, including a water return mechanism body, the water return mechanism body including a heater, the top of the heater being connected to a hot water pipe, one side of the hot water pipe being connected to a connecting pipe, the other side of the connecting pipe being connected to a cold water pipe, the bottom of the cold water pipe being connected to the top of the heater, a thermostat being fixedly connected to the left side of the heater, a water outlet pipe being connected to the left side of the connecting pipe, a guide pipe being connected to the bottom of the water outlet pipe, a solenoid valve being connected to the top of the surface of the guide pipe, a water return filter mechanism being connected to the bottom of the guide pipe, and a snap-fit ​​mechanism being fixedly connected to the left side of the water return filter mechanism;

[0006] The return water filtration mechanism includes a water storage tank. The top of the water storage tank is connected to the bottom of the guide pipe. A frame is movably connected to the inner cavity of the water storage tank. A handle is fixedly connected to the left side of the frame. A cotton mesh filter layer is fixedly connected to the inner cavity of the frame. An activated carbon filter layer is fixedly connected to the bottom of the cotton mesh filter layer. An input pipe is connected to the front of the water storage tank. A water pump is connected to the right side of the input pipe. An output pipe is connected to the output end of the water pump. The other end of the output pipe is connected to the front of the temperature controller.

[0007] Preferably, the bottom of the water pump is fixedly connected to a bracket, and the bottom of the bracket is fixed to the ground by screws.

[0008] Preferably, a guide block is fixedly connected to the inner cavity of the water storage tank. The guide block is arranged with an inclined structure, and the inclined surface of the guide block is located on one side of the input pipe.

[0009] Preferably, the locking mechanism includes a collection coil, the right side of which is movably connected to the left side of the water tank, and a rotating handle is fixedly connected to the left side of the collection coil, with several protrusions fixedly connected to the surface of the rotating handle.

[0010] Preferably, connecting ropes are fixedly connected to both sides inside the coil, and a snap-fit ​​strip is fixedly connected to the other end of the connecting rope. A rotating shaft is movably connected to the inner cavity of the snap-fit ​​strip, and an upper mounting block is fixedly connected to the surface of the rotating shaft. The right side of the upper mounting block is fixedly connected to the left side of the water storage tank.

[0011] Preferably, the surface of the rotating shaft is fitted with two springs, one side of which is fixedly connected to one side of the snap-fit ​​strip, and the other side of which is fixedly connected to the inner cavity of the upper mounting block.

[0012] Preferably, a lower mounting block is movably connected to one side of the snap-fit ​​strip, and the inner cavity of the lower mounting block is provided with a snap-fit ​​groove, the inner cavity of the snap-fit ​​groove being snapped into the surface of the snap-fit ​​strip.

[0013] The advantages of this utility model are:

[0014] This invention utilizes a heater to deliver heated water through a hot water pipe to the interior of the heater, while simultaneously delivering cold water from the cold water pipe to a connecting pipe. After mixing in the connecting pipe to a suitable temperature, the water flows out through the outlet pipe. When the outlet pipe stops discharging water, a solenoid valve opens, allowing residual water in the outlet pipe to be guided through a guide pipe into a storage tank. The water then undergoes two layers of filtration within the storage tank: a cotton mesh filter layer and an activated carbon filter layer. Finally, the water flows to the bottom of the storage tank and is guided by a guide block into the inlet pipe. A water pump then delivers the water from the inlet pipe into the outlet pipe, ultimately returning it to the heater. This achieves a return water filtration effect, solving the problem that in hot water supply, after adjusting the temperature, excess water remains in the pipes after use. Over time, trace elements in the water can cause the pipes to rust and breed bacteria, resulting in the hot water carrying germs and endangering people's health. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the water storage tank structure of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the water storage tank of this utility model;

[0019] Figure 4 This is a schematic diagram of the frame structure of this utility model;

[0020] Figure 5 This is an exploded view of the upper mounting block of this utility model.

[0021] In the diagram: 1. Water return mechanism body; 101. Heater; 102. Temperature controller; 103. Hot water pipe; 104. Cold water pipe; 105. Outlet pipe; 106. Guide pipe; 107. Connecting pipe; 108. Solenoid valve; 2. Water return filtration mechanism; 201. Water storage tank; 202. Frame; 203. Cotton mesh filter layer; 204. Activated carbon filter layer; 205. Guide block; 206. Handle; 207. Input pipe; 208. Bracket; 209. Water pump; 210. Output pipe; 3. Snap-fit ​​mechanism; 301. Upper mounting block; 302. Lower mounting block; 303. Rotating shaft; 304. Snap-fit ​​strip; 305. Rotating handle; 306. Spring; 307. Connecting rope; 308. Collector coil; 309. Snap-fit ​​groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a water return mechanism for hot water supply. (Refer to...) Figure 1 and Figure 5A water return mechanism for hot water supply includes a water return mechanism body 1, which includes a heater 101. A hot water pipe 103 is connected to the top of the heater 101. A connecting pipe 107 is connected to one side of the hot water pipe 103. A cold water pipe 104 is connected to the other side of the connecting pipe 107. The bottom of the cold water pipe 104 is connected to the top of the heater 101. A thermostat 102 is fixedly connected to the left side of the heater 101. A water outlet pipe 105 is connected to the left side of the connecting pipe 107. A guide pipe 106 is connected to the bottom of the water outlet pipe 105. A solenoid valve 108 is connected to the top of the surface of the guide pipe 106. A water return filter mechanism 2 is connected to the bottom of the guide pipe 106. A snap-fit ​​mechanism 3 is fixedly connected to the left side of the water return filter mechanism 2.

[0025] The return water filtration mechanism 2 includes a water storage tank 201. The top of the water storage tank 201 is connected to the bottom of the guide pipe 106. A frame 202 is movably connected to the inner cavity of the water storage tank 201. A handle 206 is fixedly connected to the left side of the frame 202. A cotton mesh filter layer 203 is fixedly connected to the inner cavity of the frame 202. An activated carbon filter layer 204 is fixedly connected to the bottom of the cotton mesh filter layer 203. An input pipe 207 is connected to the front side of the water storage tank 201. A water pump 209 is connected to the right side of the input pipe 207. An output pipe 210 is connected to the output end of the water pump 209. The other end of the output pipe 210 is connected to the front side of the temperature controller 102.

[0026] Reference Figure 2 The bottom of the water pump 209 is fixedly connected to a bracket 208. The bottom of the bracket 208 is fixed to the ground with screws. The bracket 208 is designed to prevent the water pump 209 from shaking during operation, thereby improving the stability of the water pump 209 during operation.

[0027] Reference Figure 3 A guide block 205 is fixedly connected to the inner cavity of the water storage tank 201. The guide block 205 is set with an inclined structure, and the inclined surface of the guide block 205 is located on one side of the input pipe 207. The guide block 205 plays a guiding role for the water in the water storage tank 201, so that the water at the bottom of the water storage tank 201 can flow smoothly into the input pipe 207.

[0028] Reference Figure 5 The snap-fit ​​mechanism 3 includes a coil 308. The right side of the coil 308 is movably connected to the left side of the water tank 201. A rotating handle 305 is fixedly connected to the left side of the coil 308. Several protrusions are fixedly connected to the surface of the rotating handle 305. The rotating handle 305 provides support for the coil 308, giving it a support point when rotating, thereby improving the stability of the coil 308 when rotating.

[0029] Reference Figure 5Both sides of the inside of the collector coil 308 are fixedly connected with connecting ropes 307. The other end of the connecting rope 307 is fixedly connected with a snap-fit ​​strip 304. The inner cavity of the snap-fit ​​strip 304 is movably connected with a rotating shaft 303. The surface of the rotating shaft 303 is fixedly connected with an upper mounting block 301. The right side of the upper mounting block 301 is fixedly connected with the left side of the water storage tank 201. Through the connecting ropes 307, the linkage effect of the snap-fit ​​strips 304 on both sides is realized, so that when the collector coil 308 rotates, the snap-fit ​​strips 304 on both sides move in the same direction.

[0030] Reference Figure 5 Two springs 306 are fitted on the surface of the rotating shaft 303. One side of the spring 306 is fixedly connected to one side of the snap-fit ​​strip 304, and the other side of the spring 306 is fixedly connected to the inner cavity of the upper mounting block 301. By setting the springs 306, the snap-fit ​​strip 304 is always snapped into the interior of the lower mounting block 302 due to the elasticity of the springs 306 when no external force is applied.

[0031] Reference Figure 5 A lower mounting block 302 is movably connected to one side of the snap-fit ​​strip 304. The inner cavity of the lower mounting block 302 is provided with a snap-fit ​​groove 309. The inner cavity of the snap-fit ​​groove 309 snaps into the surface of the snap-fit ​​strip 304. The snap-fit ​​groove 309 is provided to snap into one side of the snap-fit ​​strip 304, so that the snap-fit ​​strip 304 will not detach from the lower mounting block 302 when it is snapped into the lower mounting block 302.

[0032] Working principle: When the user is ready to draw hot water, the solenoid valve 108 is closed. The temperature of the hot water is regulated by the thermostat 102. Then, the water in the cold water pipe 104 and the hot water pipe 103 are transported to the connecting pipe 107 and mixed to a suitable temperature. The mixture is then discharged through the outlet pipe 105. When the user stops drawing water, the solenoid valve 108 opens, and the remaining water in the outlet pipe 105 flows along the guide pipe 106 into the water storage tank 201. It then passes through the cotton mesh filter layer 203 and the activated carbon filter layer 204 and finally flows into the top of the guide block 205. From there, the water flows into the inlet pipe 207. Then, the water pump 209 starts working, transporting the water in the inlet pipe 207 to the outlet pipe 210, and finally back to the control pipe 102. When the thermostat 102 needs to be replaced with a new frame 202, the rotating handle 305 is turned to make the coil 308 rotate inside the water tank 201. At the same time, the connecting ropes 307 on both sides will wind inward into the coil 308 as it rotates. The connecting ropes 307 will cause the locking strip 304 to rotate inward on the surface of the rotating shaft 303, eventually disengaging from the lower mounting block 302. Then, the handle 206 is pulled out, and the frame 202 is disengaged from the water tank 201. Then, the new frame 202 is inserted, and the rotating handle 305 is released. At this time, the locking strip 304 will re-engage inside the lower mounting block 302 due to the elasticity of the spring 306.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A water return mechanism for hot water supply, characterized in that: The device includes a water return mechanism body (1), which includes a heater (101). The top of the heater (101) is connected to a hot water pipe (103). One side of the hot water pipe (103) is connected to a connecting pipe (107). The other side of the connecting pipe (107) is connected to a cold water pipe (104). The bottom of the cold water pipe (104) is connected to the top of the heater (101). A thermostat (102) is fixedly connected to the left side of the heater (101). The left side of the connecting pipe (107) is connected to a water outlet pipe (105). The bottom of the water outlet pipe (105) is connected to a guide pipe (106). The top of the surface of the guide pipe (106) is connected to a solenoid valve (108). The bottom of the guide pipe (106) is connected to a water return filter mechanism (2). The left side of the water return filter mechanism (2) is fixedly connected to a snap-fit ​​mechanism (3). The return water filtration mechanism (2) includes a water storage tank (201), the top of which is connected to the bottom of a guide pipe (106). A frame (202) is movably connected to the inner cavity of the water storage tank (201). A handle (206) is fixedly connected to the left side of the frame (202). A cotton mesh filter layer (203) is fixedly connected to the inner cavity of the frame (202). An activated carbon filter layer (204) is fixedly connected to the bottom of the cotton mesh filter layer (203). An input pipe (207) is connected to the front side of the water storage tank (201). A water pump (209) is connected to the right side of the input pipe (207). An output pipe (210) is connected to the output end of the water pump (209). The other end of the output pipe (210) is connected to the front side of the temperature controller (102).

2. A return water mechanism for hot water supply according to claim 1, characterized in that: The bottom of the water pump (209) is fixedly connected to a bracket (208), and the bottom of the bracket (208) is fixed to the ground by screws.

3. A return water mechanism for hot water supply according to claim 1, characterized in that: The inner cavity of the water storage tank (201) is fixedly connected to a flow guide block (205), which is set with an inclined structure and the inclined surface of the flow guide block (205) is located on one side of the input pipe (207).

4. A return water mechanism for hot water supply according to claim 1, characterized in that: The snap-fit ​​mechanism (3) includes a coil (308), the right side of which is movably connected to the left side of the water tank (201), and a rotating handle (305) is fixedly connected to the left side of the coil (308). Several protrusions are fixedly connected to the surface of the rotating handle (305).

5. A return water mechanism for hot water supply according to claim 4, characterized in that: Both sides of the inside of the collecting coil (308) are fixedly connected to a connecting rope (307). The other end of the connecting rope (307) is fixedly connected to a snap-fit ​​strip (304). The inner cavity of the snap-fit ​​strip (304) is movably connected to a rotating shaft (303). The surface of the rotating shaft (303) is fixedly connected to an upper mounting block (301). The right side of the upper mounting block (301) is fixedly connected to the left side of the water storage tank (201).

6. A return water mechanism for hot water supply according to claim 5, characterized in that: The surface of the rotating shaft (303) is fitted with a spring (306), and there are two springs (306). One side of the spring (306) is fixedly connected to one side of the snap-fit ​​strip (304), and the other side of the spring (306) is fixedly connected to the inner cavity of the upper mounting block (301).

7. A return water mechanism for hot water supply according to claim 5, characterized in that: A lower mounting block (302) is movably connected to one side of the snap-fit ​​strip (304). The inner cavity of the lower mounting block (302) is provided with a snap-fit ​​groove (309), and the inner cavity of the snap-fit ​​groove (309) snaps into the surface of the snap-fit ​​strip (304).

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