Backflushing valve with emptying and counterflow functions
By designing a backflow valve with a venting and backflow function and utilizing the multi-position control handwheel gear meshing, the problems of slipped joints and water leakage and hot water waste during heating pipe cleaning were solved, realizing the self-cleaning of heating pipes and the reuse of hot water.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional heating pipe cleaning requires manual on-site service, which leads to stripped threads at joints, leaks, and wasted hot water. Existing backflow valves also cause hot water waste due to their backflow function.
Design a backflow valve with venting and backflow function. Through the adjustment of the valve core in the first valve body and the second valve body, combined with the handwheel gear meshing, multi-level control can be achieved to realize the self-cleaning of heating pipes and the reuse of hot water.
It enables self-cleaning of heating pipes, saves energy, avoids the problem of stripped joints and leaks, and also enables the reuse of hot water.
Smart Images
Figure CN224064892U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of valves, and particularly relates to a backflush valve with emptying and reverse flow functions. BACKGROUND
[0002] During use, scale and impurities are deposited in the heating pipe. Traditional cleaning relies on manual on-site service, in which the water pipe is disassembled to drain the accumulated water, and then a cleaning agent is pumped in for flushing. However, manual cleaning disassembles the water inlet pipe and the water return pipe, which causes the joint threads to slip and leak.
[0003] In the prior art with publication number 202411691242X, a backflush valve is disclosed, which can make the water flow empty and reverse to clean the water heater. The reverse flow discharges hot water from the drain, which causes waste. SUMMARY
[0004] The present application aims to provide a backflush valve with emptying and reverse flow functions, which aims to solve the problem of heating pipe cleaning and to utilize the hot water.
[0005] The present application is implemented as follows: a backflush valve with emptying and reverse flow functions, comprising a first valve body, a second valve body, and a transmission gear, wherein the first valve body is provided with a first valve core, the second valve body is provided with a second valve core, the first valve core is connected to a first hand wheel, and the second valve core is connected to a second hand wheel.
[0006] The first valve body is provided with a hot inlet, a hot outlet, an air inlet, and a first interface, the second valve body is provided with a cold outlet, a second interface, a first drain, and a second drain, the first interface and the second interface are connected to a cold inlet in combination, and the second drain is connected to the hot outlet.
[0007] The first valve core is used to adjust the communication state of the hot inlet with the hot outlet, the air inlet, and the first interface, and the second valve core is used to adjust the communication state of the cold outlet with the second interface, the first drain, and the second drain.
[0008] Further, gears are provided on the first hand wheel and the second hand wheel, and the first hand wheel and the second hand wheel are engaged through the gears.
[0009] Further, the first hand wheel and the second hand wheel are engaged through the transmission gear.
[0010] Further, the first hand wheel and the second hand wheel operate independently.
[0011] Further, when the first gear is engaged, the hot inlet is connected to the hot outlet, and the cold outlet is connected to the second interface.
[0012] Further, in the second gear, the hot inlet is communicated with the air inlet, and the cold outlet is communicated with the first exhaust port.
[0013] Further, in the third gear, the hot inlet is communicated with the first interface, and the cold outlet is communicated with the second exhaust port.
[0014] Further, in the fourth gear, the hot inlet is communicated with the air inlet, and the cold outlet is communicated with the second exhaust port.
[0015] Further, the first interface and the second interface converge to a cold inlet connecting water inlet pipeline, a cold outlet connecting water inlet water distribution valve, a hot inlet connecting water return water distribution valve, and a hot outlet connecting water return pipeline.
[0016] The embodiment of the application is applied to floor heating cleaning, the cold inlet connects the water inlet pipeline, the hot outlet connects the water return pipeline, the cold outlet connects the floor heating water inlet water distribution valve, and the hot inlet connects the floor heating water return water distribution valve.
[0017] The use method is as follows:
[0018] The first hand wheel and the second hand wheel are directly engaged through gears, or are engaged through transmission gears, and the use method is the same as that of 202411691242X, and the utility model will not be described.
[0019] The transmission gear is pressed down, and the first hand wheel and the second hand wheel independently operate:
[0020] The floor heating pipeline is emptied and cleaned: the first hand wheel is rotated to make the hot inlet communicated with the air inlet, and the second hand wheel is correspondingly rotated to make the cold outlet communicated with the first exhaust port;
[0021] The reverse flow backflush is performed: the first hand wheel is rotated to make the hot inlet communicated with the first interface, and the second hand wheel is correspondingly rotated to make the cold outlet communicated with the second exhaust port;
[0022] The reverse flow exhaust is performed: the first hand wheel is rotated to make the hot inlet communicated with the first interface, and the second hand wheel is correspondingly rotated to make the cold outlet communicated with the first exhaust port;
[0023] The normal use of the floor heating in the forward flow is performed: the first hand wheel is rotated to make the hot inlet communicated with the hot outlet, and the second hand wheel is correspondingly rotated to make the cold outlet communicated with the second interface.
[0024] The embodiment of the application provides a backflush valve with emptying and reverse flow functions, a first valve body is provided with an air inlet, and the emptying and cleaning of the indoor floor heating pipeline and the reverse flow function make the indoor floor heating change direction, save energy, and discharge accumulated dirt in the pipeline. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1This is a structural diagram of the backwash valve in the downstream configuration of the first embodiment;
[0026] Figure 2 This is a structural diagram of the backflush valve during venting in the first embodiment;
[0027] Figure 3 This is a structural diagram of the backflow valve in the first embodiment during reverse flow;
[0028] Figure 4 This is a structural diagram of the backflow valve during backflow drainage in the first embodiment;
[0029] Figure 5 This is a perspective view of the handle of the backflush valve in the first embodiment.
[0030] Figure 6 This is a perspective view of the handle of the backflush valve separated in the second embodiment;
[0031] Figure 7 This is a diagram showing the connection between the backflush valve and the heating pipes.
[0032] Figure label:
[0033] 1. Cold inlet; 2. Cold outlet; 3. Hot inlet; 4. Air inlet; 5. Hot outlet; 6. First interface; 7. Second interface; 8. First drain outlet; 9. First handwheel; 10. Second handwheel; 11. Inlet water valve; 12. Return water valve; 13. Transmission gear; 14. Inlet water pipe; 15. First valve body; 16. Second valve body; 17. Second drain outlet; 18. Return water pipe. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0035] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.
[0036] like Figures 1-3 , Figure 5 As shown, in the first embodiment, a backflow valve with a backflow function is proposed, including a first valve body 15 and a second valve body 16. A first valve core is provided in the first valve body 15, and a second valve core is provided in the second valve body 16. The first valve core is connected to a first handwheel 9, and the second valve core is connected to a second handwheel 10. The first handwheel 9 and the second handwheel 10 are engaged by a transmission gear 13.
[0037] The first valve body 15 is provided with a hot inlet 3, a hot outlet 5, an air inlet 4 and a first interface 6, and the second valve body 16 is provided with a cold outlet 2, a second interface 7 and a first drain outlet 8; the first interface 6 and the second interface 7 are connected to the cold inlet 1; the hot outlet 5 is connected to the second drain outlet 17.
[0038] The first valve core is used to regulate the hot inlet 3. The first valve core is connected to the hot outlet 5, the air inlet 4 and the first interface 6 respectively. The second valve core is used to regulate the cold outlet 2. The second valve core is connected to the second interface 7, the first drain port 8 and the second drain port 17 respectively.
[0039] In this embodiment, the first valve body 15 and the second valve body 16 can be either separate or integrated. The first and second valve cores are general-purpose three-position water-dividing valve core structures, which are known technologies. The first valve core has three adjustable positions, respectively connecting the heat inlet 3 and heat outlet 5, the air inlet 4, and the first interface 6. The second valve core adjusts synchronously to achieve different functions. There are three functions, as detailed below:
[0040] Convection heating function: such as Figure 1 As shown, in the first gear position, the hot inlet 3 is connected to the hot outlet 5, and the cold outlet 2 is connected to the second interface 7.
[0041] Function of venting heating pipes: such as Figure 2 As shown, in the second gear position, the hot inlet 3 is connected to the air inlet 4, and the cold outlet 2 is connected to the first drain outlet 8.
[0042] Countercurrent heating function: such as Figure 3 As shown, in the third position, the hot inlet 3 connects to the first interface 6, and the cold outlet 2 connects to the second drain outlet 17. In counter-current flow, the dirt accumulated at the corners of the pipes due to concurrent heating can be discharged.
[0043] In this embodiment, preferably, the first valve core is connected to the first handwheel 9, and the second valve core is connected to the second handwheel 10. The first handwheel 9 and the second handwheel 10 are directly engaged by gears or by transmission gear 13. The cooperation of the first handwheel 9 and the second handwheel 10 can realize the synchronous control of the first valve core and the second valve core; wherein, either the first handwheel 9 or the second handwheel 10 can be a rotating wheel, and the other can be a driven wheel.
[0044] In this embodiment, users can clean the heating pipes themselves by adjusting different settings. There are two settings for draining the pipes: one is to empty the pipes completely, and the other is to reverse the flow of heat. A connector is provided at both the air inlet 4 and the first drain outlet 8, facilitating the filling of cleaning agents to clean and remove dirt from the heating pipes, and enhancing the user's visual experience.
[0045] In the second embodiment, another countercurrent sewage discharge option is proposed:
[0046] likeFigure 6 As shown, the first valve core is connected with the first hand wheel 9, the second valve core is connected with the second hand wheel 10, and the pressing transmission gear 13 is disconnected from the first hand wheel 9 and the second hand wheel 10. Rotating the first hand wheel 9 and the second hand wheel 10 independently realizes the reverse flow and blowdown function: as shown Figure 4 As shown, in the fourth gear position, the hot inlet 3 is connected with the first interface 6, and the cold outlet 2 is connected with the first blowdown port 8. The dirt accumulated in the pipe corner in the forward flow heating can be discharged in the reverse flow.
[0047] The connection mode of the embodiment is as follows:
[0048] As shown Figure 5 , Figure 6 , Figure 7 As shown, the first interface 6 and the second interface 7 converge to the cold inlet 1 connected with the water inlet pipe 14, the cold outlet 2 is connected with the water inlet water distribution valve 11, the hot inlet 3 is connected with the water return water distribution valve 12, and the hot outlet 5 is connected with the water return pipe 18.
[0049] First, as shown Figure 1 , the first hand wheel 9 links the second hand wheel 10 in the first gear position: the water flow passes through the cold inlet 1, the second interface 7, the cold outlet 2, the water inlet water distribution valve 11, the water return water distribution valve 12, the hot inlet 3, and the hot outlet 5 in sequence to form a forward water flow loop.
[0050] Second, as shown Figure 2 , the first hand wheel 9 is in the second gear position: air enters from the air inlet 4 and the water return water distribution valve 12, and is discharged from the water inlet water distribution valve 11 and the first blowdown port 8.
[0051] Third, as shown Figure 3 , the first hand wheel 9 is in the third gear position: the water flow passes through the cold inlet 1, the first interface 6, the hot inlet 3, the water return water distribution valve 12, the water inlet water distribution valve 11, the cold outlet 2, and the second blowdown port 17 in sequence to form a reverse water flow loop.
[0052] Fourth, as shown Figure 4 , the first hand wheel 9 is independently in the fourth gear position, and the second hand wheel 10 is independently in the fourth gear position: the water flow passes through the cold inlet 1, the first interface 6, the hot inlet 3, the water return water distribution valve 12, the water inlet water distribution valve 11, the cold outlet 2, and the first blowdown port 8 in sequence to form a reverse water flow discharge.
[0053] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, other deformations and improvements can be made without departing from the concept of the present application, which belongs to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.
[0054] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A backflush valve with a drain counterflow function, characterized by, It comprises a first valve body (15), a second valve body (16) and a transmission gear (13), the first valve body (15) is provided with a first valve core, the second valve body (16) is provided with a second valve core, the first valve core is connected with a first hand wheel (9), the second valve core is connected with a second hand wheel (10), the first hand wheel (9) and the second hand wheel (10) are provided with gears; The first valve body (15) is provided with a hot inlet (3), a hot outlet (5), an air inlet (4) and a first interface (6), the second valve body (16) is provided with a cold outlet (2), a second interface (7), a first blowdown (8) and a second blowdown (17), the first interface (6) and the second interface (7) are connected with a cold inlet (1) in common, the hot outlet (5) and the second blowdown (17) are connected with a backwater pipeline (18) in common; The first valve core is used for adjusting the communication state of the hot inlet (3) with the hot outlet (5), the air inlet (4) and the first interface (6) respectively, and the second valve core is used for adjusting the communication state of the cold outlet (2) with the second interface (7), the first blowdown (8) and the second blowdown (17) respectively; The hot inlet (3) is communicated with the hot outlet (5), and the cold outlet (2) is communicated with the second interface (7); The hot inlet (3) is communicated with the air inlet (4), and the cold outlet (2) is communicated with the first blowdown (8); The hot inlet (3) is communicated with the first interface (6), and the cold outlet (2) is communicated with the second blowdown (17); The hot inlet (3) is communicated with the air inlet (4), and the cold outlet (2) is communicated with the second blowdown (17).
2. The backflush valve with emptying counterflow function according to claim 1, characterized in that, The first hand wheel (9) and the second hand wheel (10) are engaged through the transmission gear (13).
3. The backwash valve with emptying counterflow function according to claim 1, characterized in that, The first hand wheel (9) and the second hand wheel (10) operate independently.
4. The backflush valve with emptying backflow function according to claim 1, characterized in that, The air inlet (4) and the first blowdown (8) are provided with plug-in connectors.
5. The backflush valve with emptying backflow function according to claim 1, characterized in that, The first interface (6) and the second interface (7) converge to the cold inlet (1) connected with a water inlet pipeline (14), the cold outlet (2) is connected with a water inlet and water valve (11), the hot inlet (3) is connected with a backwater and water valve (12), and the hot outlet (5) and the second blowdown (17) are connected with a backwater pipeline (18).