Equipment for preventing limo waterway from icing and frost cracking in winter

Abstract

The utility model relates to the technical field of touring cars, in particular to a device for preventing a touring car waterway from icing and frost cracking in winter, which comprises a water tank and a drainage mechanism, the drainage mechanism comprises a first connecting pipe, a first three-way switching valve, a water pump, a second connecting pipe, a second three-way switching valve and a third connecting pipe; when water needs to be emptied, the first three-way switching valve communicates air with the water pump, the second three-way switching valve communicates the second connecting pipe with the third connecting pipe, and the water pump injects air into the second connecting pipe, the second connecting pipe and the third connecting pipe. When the water in the water tank needs to be emptied, the water pump continues to work, so that the whole water tank is filled with air, the water in the water tank is discharged from a water outlet in the bottom of the water tank, and the water in the water tank and the three connecting pipes is prevented from being frozen; the problem that power consumption of the water tank is increased due to the fact that a hot water system is additionally arranged on the water tank is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of recreational vehicles, in particular to a device for preventing a waterway of a recreational vehicle from freezing and cracking in winter. Background Art

[0002] The water tank is an important daily life equipment in the RV, which is used to provide water needs for users through the water pipes. However, when using it, the water in the water pipes must be drained in winter, otherwise the water in the water pipes will freeze and burst the water pipes.

[0003] At present, the existing technology is to add a hot water system to the water tank to prevent the water in the water pipe from freezing, but it will increase the power consumption of the water tank. Utility Model Content

[0004] The utility model aims to provide a device to prevent the water pipes of RVs from freezing and cracking in winter, aiming to solve the problem that adding a hot water system to the water tank to avoid freezing of the water pipes will lead to increased power consumption of the water tank.

[0005] To achieve the above-mentioned objectives, the utility model provides a device for preventing the water channels of a motorhome from freezing and cracking in winter, including a water tank and a drainage mechanism, the drainage mechanism including a first connecting pipe, a first three-way switching valve, a water pump, a second connecting pipe, a second three-way switching valve, and a third connecting pipe; the first connecting pipe is connected to the water tank and is located at the top of the water tank, one path of the first three-way switching valve is connected to the first connecting pipe and is located on a side away from the water tank, another path of the first three-way switching valve is connected to the water pump, the last path of the first three-way switching valve is connected to air, the second connecting pipe is connected to a side of the water pump away from the first three-way switching valve, one path of the second three-way switching valve is connected to a side of the second connecting pipe away from the water pump, another path of the second three-way switching valve is connected to the third connecting pipe, the last path of the second three-way switching valve is used for water outlet, and the side of the second connecting pipe away from the second three-way switching valve is connected to the first connecting pipe.

[0006] Among them, the first three-way switching valve includes a T-shaped connecting pipe, three valve cores and three rotating rods, one path of the T-shaped connecting pipe is connected to the first connecting pipe, another path of the T-shaped connecting pipe is connected to the water pump, and the last path of the T-shaped connecting pipe is connected to the air, the three valve cores are respectively arranged on the inner side walls of the T-shaped connecting pipe, the three rotating rods are respectively fixedly connected to the three valve cores, and are respectively rotatably connected to the T-shaped connecting pipe, and pass through the T-shaped connecting pipe.

[0007] Among them, the first three-way switching valve also includes three handles and three friction pads, the three handles are fixedly connected to the three rotating rods respectively, and are all located on the side away from the valve core, and the three friction pads are fixedly connected to the three handles respectively, and are all located around the handles.

[0008] Wherein, the drainage mechanism further includes a sealing ring, which is fixedly connected to the first connecting pipe and is located on a side close to the water tank.

[0009] Wherein, the drainage mechanism also includes a mounting frame and a filter screen. The mounting frame is detachably connected to the T-shaped connecting pipe and is located on the side of the T-shaped connecting pipe close to the air. The filter screen is fixedly connected to the mounting frame and is located on the inner wall of the mounting frame.

[0010] The utility model discloses a device for preventing the water channel of a recreational vehicle from freezing and cracking in winter, comprising a water tank and a drainage mechanism, wherein the drainage mechanism comprises a first connecting pipe, a first three-way switching valve, a water pump, a second connecting pipe, a second three-way switching valve, and a third connecting pipe; the first connecting pipe is connected to the water tank and is located at the top of the water tank, one way of the first three-way switching valve is connected to the first connecting pipe and is located on a side away from the water tank, another way of the first three-way switching valve is connected to the water pump, the last way of the first three-way switching valve is connected to air, the second connecting pipe is connected to a side of the water pump away from the first three-way switching valve, one way of the second three-way switching valve is connected to a side of the second connecting pipe away from the water pump, another way of the second three-way switching valve is connected to the third connecting pipe, the last way of the second three-way switching valve is used for water outlet, and the side of the second connecting pipe away from the second three-way switching valve is connected to the first connecting pipe. When the water tank is used normally for water supply, the first three-way switching valve connects the water pump and the first connecting pipe, the second three-way switching valve connects the second connecting pipe with the water outlet, and the water pump discharges the water in the water tank from the first connecting pipe and the second connecting pipe for use by users. When the water needs to be drained, the first three-way switching valve connects the air with the water pump, the second three-way switching valve connects the second connecting pipe and the third connecting pipe, and the water pump injects air into the second connecting pipe, the second connecting pipe and the third connecting pipe, thereby pumping the water in the three connecting pipes back into the water tank. At the same time, when the water in the water tank needs to be drained, the water pump continues to work so that the air fills the entire water tank, and the water in the water tank is discharged from the water outlet at the bottom thereof, so as to avoid the water in the water tank and the three connecting pipes from freezing, thereby solving the problem that adding a hot water system to the water tank to avoid freezing of water pipes will lead to increased power consumption of the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0012] Figure 1 The utility model is a structural schematic diagram of a device for preventing a water channel of a motorhome from freezing and cracking in winter.

[0013] Figure 2 The utility model is a cross-sectional view of a device for preventing a water channel of a recreational vehicle from freezing and cracking in winter.

[0014] 101-water tank, 102-drainage mechanism, 103-first three-way switching valve, 104-water pump, 105-second three-way switching valve, 106-T-type connecting pipe, 107-valve core, 108-rotating rod, 109-handle, 110-friction pad, 111-sealing ring, 112-mounting frame, 113-filter screen, 114-first connecting pipe, 115-second connecting pipe, 116-third connecting pipe. DETAILED DESCRIPTION

[0015] This application is for:

[0016] See also Figure 1-Figure 2 , Figure 1 The utility model is a structural schematic diagram of a device for preventing a water channel of a motorhome from freezing and cracking in winter. Figure 2 It is a cross-sectional view of a device for preventing a water channel of a recreational vehicle from freezing and cracking in winter (a state when water in three connecting pipes is drained).

[0017] The utility model provides a device for preventing the waterway of a motorhome from freezing and cracking in winter, comprising a water tank 101 and a drainage mechanism 102, wherein the drainage mechanism 102 comprises a first connecting pipe 114, a first three-way switching valve 103, a water pump 104, a second connecting pipe 115, a second three-way switching valve 105, a third connecting pipe 116, a sealing ring 111, a mounting frame 112 and a filter screen 113; the first three-way switching valve 103 comprises a T-shaped connecting pipe 106, three valve cores 107, three rotating rods 108, three handles 109 and three friction pads 110. The above solution solves the problem that adding a hot water system to the water tank 101 to prevent the waterway pipe from freezing will increase the power consumption of the water tank 101. It can be understood that the above solution can be used in the scenario where the waterway pipe is not used in winter.

[0018] According to the present specific embodiment, the device for preventing the RV waterway from freezing and cracking in winter comprises a water tank 101 and a drainage mechanism 102, wherein the drainage mechanism 102 comprises a first connecting pipe 114, a first three-way switching valve 103, a water pump 104, a second connecting pipe 115, a second three-way switching valve 105, and a third connecting pipe 116; the first connecting pipe 114 is connected to the water tank 101 and is located at the top of the water tank 101, one way of the first three-way switching valve 103 is connected to the first connecting pipe 114 and is located on a side away from the water tank 101, and the other way of the first three-way switching valve 103 is connected to the first connecting pipe 114 and is located on a side away from the water tank 101. The water pump 104 is connected, the last route of the first three-way switching valve 103 is connected to the air, the second connecting pipe 115 is connected to the side of the water pump 104 away from the first three-way switching valve 103, one route of the second three-way switching valve 105 is connected to the side of the second connecting pipe 115 away from the water pump 104, the other route of the second three-way switching valve 105 is connected to the third connecting pipe 116, the last route of the second three-way switching valve 105 is used for water outlet, and the side of the second connecting pipe 115 away from the second three-way switching valve 105 is connected to the first connecting pipe 114. When the water tank 101 is used for water supply normally, the first three-way switching valve 103 connects the water pump 104 with the first connecting pipe 114, and the second three-way switching valve 105 connects the second connecting pipe 115 with the water outlet, and the water pump 104 discharges the water in the water tank 101 through the first connecting pipe 114 and the second connecting pipe 115 for use by the user. When the water needs to be emptied, the first three-way switching valve 103 connects the air to the water pump 104, and the second three-way switching valve 105 connects the second connecting pipe 115 with the third connecting pipe 116, and the water pump 104 discharges the air. Air is injected into the second connecting pipe 115, the second connecting pipe 115 and the second connecting pipe 115, so that the water in the three connecting pipes is pumped back into the water tank 101. At the same time, when the water in the water tank 101 needs to be drained, the water pump 104 continues to work, so that the air fills the entire water tank 101, and the water in the water tank 101 is discharged from the water outlet at the bottom thereof. Since the water tank 101 is located at the lowest point, there is no need to worry about freezing, so the water in the water tank 101 and the three connecting pipes can be prevented from freezing, which solves the problem of increasing the power consumption of the water tank 101 by adding a hot water system to the water tank 101 to prevent the water pipes from freezing.

[0019] The first three-way switching valve 103 includes a T-shaped connecting pipe 106, three valve cores 107 and three rotating rods 108. One way of the T-shaped connecting pipe 106 is connected to the first connecting pipe 114 and is located at the top of the water tank 101. Another way of the T-shaped connecting pipe 106 is connected to the water pump 104. The last way of the T-shaped connecting pipe 106 is connected to the air. The three valve cores 107 are respectively arranged on the inner side wall of the T-shaped connecting pipe 106. The three rotating rods 108 are respectively fixedly connected to the three valve cores 107 and are respectively rotatably connected to the T-shaped connecting pipe 106 and penetrate the T-shaped connecting pipe 106. The water pump 104 and the water tank 101 are connected through the T-shaped connecting pipe 106. By rotating the rotating rod 108, the rotating rod 108 drives the valve core 107 to rotate, so that the T-shaped connecting pipe 106 can be turned on and off. Furthermore, the first three-way switching valve 103 and the second three-way switching valve 105 have the same structure.

[0020] Secondly, the first three-way switching valve 103 further includes three handles 109 and three friction pads 110. The three handles 109 are respectively fixedly connected to the three rotating rods 108 and are all located on a side away from the valve core 107. The three friction pads 110 are respectively fixedly connected to the three handles 109 and are all located around the handles 109. The handles 109 are used to increase the contact area between the rotating rod 108 and the hand, and the friction pads 110 can increase the friction between the handles 109 and the hand, thereby improving the force effect on the rotating rod 108.

[0021] Meanwhile, the drainage mechanism 102 further comprises a sealing ring 111, which is fixedly connected to the first connecting pipe 114 and is located at a side close to the water tank 101. The sealing ring 111 is used to increase the sealing performance between the T-shaped connecting pipe 106 and the water tank 101.

[0022] Finally, the drainage mechanism 102 further includes a mounting frame 112 and a filter screen 113. The mounting frame 112 is detachably connected to the T-shaped connecting pipe 106 and is located on a side of the T-shaped connecting pipe 106 close to the air. The filter screen 113 is fixedly connected to the mounting frame 112 and is located on the inner side wall of the mounting frame 112. The filter screen 113 is detachably connected to the T-shaped connecting pipe 106 through the mounting frame 112. The filter screen 113 filters the air entering the T-shaped connecting pipe 106 to prevent impurities in the air from clogging the T-shaped connecting pipe 106 and the water pipe.

[0023] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A device for preventing the waterway of a motorhome from freezing and cracking in winter, comprising a water tank, characterized in that: It also includes a drainage mechanism, which includes a first connecting pipe, a first three-way switching valve, a water pump, a second connecting pipe, a second three-way switching valve, and a third connecting pipe; The first connecting pipe is connected to the water tank and is located at the top of the water tank, one way of the first three-way switching valve is connected to the first connecting pipe and is located on a side away from the water tank, another way of the first three-way switching valve is connected to the water pump, the last way of the first three-way switching valve is connected to the air, the second connecting pipe is connected to a side of the water pump away from the first three-way switching valve, one way of the second three-way switching valve is connected to a side of the second connecting pipe away from the water pump, another way of the second three-way switching valve is connected to the third connecting pipe, the last way of the second three-way switching valve is used for water outlet, and the side of the second connecting pipe away from the second three-way switching valve is connected to the first connecting pipe.

2. The device for preventing RV waterways from freezing and cracking in winter as claimed in claim 1, characterized in that: The first three-way switching valve includes a T-shaped connecting pipe, three valve cores and three rotating rods, one path of the T-shaped connecting pipe is connected to the first connecting pipe, another path of the T-shaped connecting pipe is connected to the water pump, and the last path of the T-shaped connecting pipe is connected to the air, the three valve cores are respectively arranged on the inner side walls of the T-shaped connecting pipe, the three rotating rods are respectively fixedly connected to the three valve cores, and are respectively rotatably connected to the T-shaped connecting pipe, and pass through the T-shaped connecting pipe.

3. The device for preventing the RV waterway from freezing and cracking in winter as claimed in claim 2, characterized in that: The first three-way switching valve also includes three handles and three friction pads. The three handles are fixedly connected to the three rotating rods respectively and are all located on the side away from the valve core. The three friction pads are fixedly connected to the three handles respectively and are all located around the handles.

4. The device for preventing RV waterways from freezing and cracking in winter as claimed in claim 3, characterized in that: The drainage mechanism also includes a sealing ring, which is fixedly connected to the first connecting pipe and is located on a side close to the water tank.

5. The device for preventing RV waterways from freezing and cracking in winter as claimed in claim 4, characterized in that: The drainage mechanism also includes a mounting frame and a filter screen. The mounting frame is detachably connected to the T-shaped connecting pipe and is located on a side of the T-shaped connecting pipe close to the air. The filter screen is fixedly connected to the mounting frame and is located on an inner side wall of the mounting frame.

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