Freeze protection components and water heaters

Abstract

The present invention discloses an antifreeze component and a water heater, wherein the antifreeze component comprises a pipeline, a first slider and a first elastic member; the pipeline comprises a pipeline body, and the pipeline body comprises a first interface; the first slider and the first elastic member are both arranged in the pipeline body, and the first elastic member is used to provide an elastic force to the first slider away from the first interface; wherein, when the water pressure in the pipeline body is greater than a first preset value, the first slider moves along the water flow direction and the first elastic member is compressed and deformed along the displacement direction of the first slider, the first slider moves to the first interface and closes the first interface, thereby avoiding the situation where the heating component is incorrectly started due to the large water pressure generated by the excessive water flow speed. At the same time, when the water in the pipeline freezes, the pressure in the pipeline increases, the first elastic member gives the first slider a force to stay away from the first interface, the first interface is opened, the water flows to the outside of the pipeline body, and the heating component starts to heat the pipeline body to achieve the antifreeze purpose.

Description

Technical Field

[0001] The invention relates to the field of pipelines, and in particular to an antifreeze component and a water heater. Background Art

[0002] The existing antifreeze devices of water heaters are all powered by external energy to achieve the heating function, for example, the device needs to be powered on. In real life, many users will disconnect the power supply after using the device, which means that in this non-powered state, the device may be damaged because the antifreeze function cannot be activated. When ice forms in the pipeline, the water pressure in the pipeline increases, causing the components to crack. Excessive hydrostatic pressure in the system will also cause components to crack. Therefore, when designing components, there will be an allowable water inlet pressure to avoid failure of components due to excessive water pressure. However, the design pressure bearing capacity can only avoid failure of components due to excessive water pressure by controlling the water inlet pressure, but cannot avoid failure due to freezing. In order to avoid failure of components due to freezing, an external heating device is used to heat the pipeline when the freezing pressure increases in the pipeline. However, the heating device cannot determine whether the pressure increase is caused by freezing or by the increase in water pressure caused by the increase in water flow velocity in the pipeline. Therefore, it will make a wrong judgment and lead to the result of erroneous activation of the heating device. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an antifreeze component and a water heater in order to overcome the defect in the prior art that the antifreeze device is erroneously started due to the increase of water pressure caused by excessive water flow rate.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] An antifreeze component includes a pipeline, a first slider and a first elastic member; the pipeline includes a pipeline body, and the pipeline body includes a first interface; the first slider and the first elastic member are both arranged in the pipeline body, and the first elastic member is used to provide an elastic force to the first slider away from the first interface; wherein, when the water pressure in the pipeline body is greater than a first preset value, the first slider moves along the direction of water flow and the first elastic member is compressed and deformed along the displacement direction of the first slider, and the first slider moves to the first interface and closes the first interface.

[0006] In this solution, a first interface is provided on the pipeline body, and the opening and closing of the first interface is used to control whether the water flow in the pipeline body can flow out from the first interface. When the water flow rate in the pipeline body is too high, the water pressure in the pipeline body will be too high. When the water pressure in the pipeline body is too high, the water will flow out from the first interface. At this time, it is not because the pressure in the pipeline is increased due to the freezing of water, but because the water flows out of the first interface, which will cause the heating device to start incorrectly. At this time, for the safety of parts and to avoid the occurrence of incorrect starting of the heating device, a first preset value is usually defined. When the water pressure in the pipeline body is greater than the first preset value, the first slider moves in the pipeline body along the direction of the water flow to the first interface, and the side wall of the first slider blocks the first interface so that the water in the pipeline body cannot flow out from the first interface, thereby avoiding the occurrence of incorrect starting of the heating device due to excessive water pressure.

[0007] At the same time, the water flow speed in the pipe body is reduced, resulting in a decrease in the water pressure in the pipe body, and the force of the water flow on the first slider is reduced. At this time, the first elastic member provides elastic force to the first slider to make the first slider move away from the first interface. The first interface is opened and will not block the way for the water to flow out of the first interface when the water pressure in the pipe body increases due to ice formation, thereby ensuring the normal operation of the antifreeze component.

[0008] Preferably, the antifreeze component also includes a heating component, the pipeline also includes a shunt pipeline, the shunt pipeline is connected to the first interface, and a second interface is provided on the shunt pipeline; the heating component is sleeved on the outer wall of the pipeline body and is detachably connected to the pipeline, and the chamber of the shunt pipeline is connected to the chamber of the heating component through the second interface.

[0009] In this solution, the chamber of the diversion pipe is connected to the chamber of the heating component. After the water flow in the pipe body enters the diversion pipe chamber from the first interface, it can flow into the heating pipe chamber through the second interface to trigger the heating component to heat up; the heating component is sleeved on the pipe body and the outer wall of the pipe body is wrapped up, which can maximize the thermal efficiency when the heating component releases heat, shorten the heating time, and avoid the occurrence of pipe freezing; the heating component and the pipe are detachably connected, which is convenient for removing the heating component for maintenance or replacing materials.

[0010] Preferably, the antifreeze component includes a second slider; the outer wall of the second slider is in contact with the inner wall of the shunt pipe and the second slider can move in the shunt pipe, the second slider can move to the second interface and close the second interface to prevent the chamber of the shunt pipe from communicating with the chamber of the heating component.

[0011] In this solution, the second slider is arranged in the diversion pipe and fits against the inner wall of the diversion pipe, thereby preventing water from seeping out from the gap between the second slider and the inner wall of the diversion pipe. The opening and closing of the second interface is controlled by the movement of the second slider, thereby determining whether to close the connection between the chamber of the diversion pipe and the chamber of the heating component, and further determining whether the water can enter the heating component through the second interface, and further determining whether to start heating the pipe.

[0012] Preferably, the heating component comprises a heating material, which is disposed in a chamber of the heating component, and the heating material is configured to release heat to heat the pipeline after contacting with water.

[0013] In this solution, a heating material is arranged in the chamber of the heating component. The heating material can release heat to heat the pipe after contacting with water. In this process, no external power supply or other external energy is required to provide energy to realize the heating function. This means that in this non-powered state, as long as the second interface is opened, water flows from the diversion pipe chamber into the chamber of the heating component to realize the antifreeze function. When the ambient temperature drops, the heating component can automatically start the antifreeze function to prevent damage to the equipment.

[0014] Preferably, the antifreeze assembly also includes a second elastic member, which is arranged in the chamber of the shunt pipe, one end of the second elastic member is connected and fixed to the second slider, and the other end of the second elastic member is connected and fixed to the shunt pipe, and the second elastic member is used to provide an elastic force to the second slider away from the second interface.

[0015] In this solution, one end of the second elastic member is fixed to the shunt pipe and cannot move, and the other end is connected to the second slider, and is compressed or stretched during the movement of the second slider. When the second elastic member stretches toward the second slider, it provides an elastic force to the second slider away from the second interface. At this time, the second interface is closed, the shunt pipe chamber is not connected to the chamber of the heating component, and the heating component cannot start automatically.

[0016] Preferably, the shunt pipeline further comprises a second fixing member, and the second fixing member is located at a side away from the second interface to limit the moving distance of the second sliding block.

[0017] In this solution, one end of the second slider is connected to the second elastic member, and the second elastic member limits the movable distance of the second slider toward the second elastic member. The fixing member arranged on the inner wall of the diversion pipe limits the moving distance of the second slider to prevent the second slider from moving too far or even moving out of the diversion pipe under the action of gravity or elastic force.

[0018] Preferably, the second slider includes a through hole, one end opening of the through hole is connected to the first interface, and the other end opening of the through hole is located on the side wall of the second slider. When the water pressure in the shunt pipe is less than or equal to the second preset value, the opening of the through hole located on the side wall of the second slider fits into the inner wall of the shunt pipe; when the water pressure in the shunt pipe is greater than the second preset value, the opening of the through hole located on the side wall of the second slider is connected to the second interface.

[0019] In this solution, a through hole is set on the second slider. When the water pressure in the shunt pipe is greater than the second preset value, the second slider is displaced. At this time, the two ends of the through hole are respectively connected to the first interface and the second interface, thereby forming a channel from the pipe body to the shunt pipe chamber and then to the heating component chamber, thereby starting the heating component to heat the pipe to achieve the purpose of anti-freezing.

[0020] Preferably, the pipeline includes a first fixing member arranged on the inner side wall of the pipeline body, and the outer side wall of the first sliding block is in contact with the inner side wall of the pipeline body; the first fixing member is used to limit the moving distance of the first sliding block.

[0021] In this solution, a first fixing member is provided on the inner side wall of the pipe body to limit the maximum distance of the first slider away from the first elastic member, so as to prevent the first slider from moving too far under the action of elastic force or water flow pressure. The first fixing member is provided as an arc-shaped member tightly fitting the inner side wall, which can limit the displacement of the first slider without affecting the normal flow of water.

[0022] Preferably, the pipeline further comprises a third fixing member arranged on the inner side wall of the pipeline body, and one end of the first elastic member away from the first sliding block is connected and fixed to the third fixing member.

[0023] In this solution, one end of the first elastic member away from the first slider is fixed on the third fixing member to limit the position of the first elastic member in the pipe body and the direction of elastic deformation, ensuring that the first elastic member applies an elastic force to the first slider away from the first interface.

[0024] Preferably, the first slider includes at least one main through hole, and the water flow moving in the radial direction of the pipeline body passes through the first slider through the main through hole.

[0025] The first slider is provided with through holes to ensure the normal flow of water in the pipeline body. When the first slider is provided with multiple through holes, the multiple through holes are evenly spaced along the circumferential and radial directions of the cross-section of the first slider, which ensures that the water flows evenly through the first slider while also ensuring that the pressure of the water flow on the first slider is uniform as much as possible, thereby avoiding the wear and tear of components caused by uneven force for a long time.

[0026] Based on the antifreeze component, the present invention provides a water heater, which includes the antifreeze component as described above.

[0027] The positive and progressive effects of the present invention are:

[0028] The antifreeze component includes a pipeline, a first slider and a first elastic member; the pipeline includes a pipeline body, and the pipeline body includes a first interface; the first slider and the first elastic member are both arranged in the pipeline body, and the first elastic member is used to provide an elastic force to the first slider away from the first interface; wherein, when the water pressure in the pipeline body is greater than a preset value, the first slider moves along the direction of the water flow and the first elastic member is compressed and deformed along the displacement direction of the first slider, and the first slider moves to the first interface and closes the first interface, thereby avoiding the situation where the heating component is incorrectly started due to the large pressure generated by excessive water pressure. At the same time, when the water in the pipeline freezes, the pressure in the pipeline increases, and the first elastic member gives the first slider a force away from the first interface, the first interface opens, and the water flows to the outside of the pipeline body, and the heating component starts to heat the pipeline body to achieve the purpose of antifreeze. The externally connected detachable heating device does not require an external power supply or other equipment, and can release heat to heat the pipeline after the water flows into the chamber of the heating component, which is convenient for replacing materials and avoids the loss of parts caused by the freezing of the pipeline due to the failure to start the antifreeze program in time due to power disconnection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of an antifreeze assembly according to Example 1 of the present invention;

[0030] Figure 2 is a schematic diagram of a heating component according to Embodiment 1 of the present invention;

[0031] Figure 3 is a schematic diagram of a pipeline according to Example 1 of the present invention;

[0032] Figure 4 for Figure 3 Internal schematic diagram of

[0033] Figure 5 It is a schematic diagram of a first sliding block and a first elastic member according to Embodiment 1 of the present invention;

[0034] Figure 6 It is a schematic diagram of a second sliding block and a second elastic member according to Embodiment 1 of the present invention;

[0035] Figure 7 for Figure 6 Internal schematic diagram of

[0036] Figure 8 is a schematic diagram of a first sliding block according to Embodiment 1 of the present invention;

[0037] Fig. 9 This is a schematic diagram of the interior of the antifreeze assembly when the water pressure in the pipeline is less than or equal to the first preset value according to Embodiment 1 of the present invention;

[0038] Fig.10This is a schematic diagram of the interior of the antifreeze assembly when the water pressure in the pipeline is greater than the first preset value in Example 1 of the present invention;

[0039] Fig.11 This is a schematic diagram of the interior of the antifreeze assembly when the water in the pipeline enters a freezing state in Example 1 of the present invention.

[0040] Description of Reference Numerals

[0041] 100 Antifreeze Components

[0042] 10 Pipeline

[0043] 11 Pipeline body

[0044] 111 First Interface

[0045] 112 first fixing member

[0046] 113 Third fixing piece

[0047] 12 Diversion pipeline

[0048] 121 Second interface

[0049] 122 second fixing member

[0050] 123 Antifreeze connecting pipe

[0051] 20 heating components

[0052] 21 Heating connecting pipe

[0053] 30 First Slider

[0054] 31 Main through hole

[0055] 40 first elastic member

[0056] 50 second slider

[0057] 51 Antifreeze Through Hole

[0058] 511 first through hole

[0059] 512 second through hole

[0060] 60 second elastic member DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and the present invention is not limited to the scope of the embodiments.

[0062] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0063] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0064] Example 1

[0065] See also Figures 1 to 11 The present invention provides an antifreeze component 100, including a pipe 10, a first slider 30 and a first elastic member 40; the pipe 10 includes a pipe body 11, and the pipe body 11 includes a first interface 111; the first slider 30 and the first elastic member 40 are both arranged in the pipe body 11, and the first elastic member 40 is used to provide an elastic force to the first slider 30 away from the first interface 111; wherein, when the water pressure in the pipe body 11 is greater than a first preset value, the first slider 30 moves along the water flow direction and the first elastic member 40 is compressed and deformed along the displacement direction of the first slider 30, and the first slider 30 moves to the first interface 111 and closes the first interface 111.

[0066] like Fig.10As shown, the opening and closing of the first interface 111 is used to control whether the water flow in the pipe body 11 can flow out from the first interface 111. When the water flow rate in the pipe body 11 is too high, the water pressure in the pipe body 11 will be too high. When the water pressure in the pipe body 11 is too high, the water will flow out from the first interface 111. At this time, it is not because the pressure in the pipe 10 is increased due to the freezing of water, but the water flowing out from the first interface 111 will cause the heating device to start incorrectly. At this time, for the safety of parts and to avoid the occurrence of incorrect starting of the heating device, a first preset value is usually defined. When the water pressure in the pipe body 11 is greater than the first preset value, the first slider 30 moves in the pipe body 11 along the water flow direction to the first interface 111, and the side wall of the first slider 30 blocks the first interface 111 so that the water in the pipe body 11 cannot flow out from the first interface 111, thereby avoiding the occurrence of incorrect starting of the heating device due to excessive water pressure.

[0067] At the same time, the water flow speed in the pipe body 11 is reduced, resulting in a decrease in the water pressure in the pipe body 11, and the force of the water flow on the first slider 30 is reduced. At this time, the first elastic member 40 provides elastic force to the first slider 30 to make the first slider 30 move away from the first interface 111. The first interface 111 is opened and will not block the way for the water to flow out of the first interface 111 when the water pressure in the pipe body 11 increases due to ice formation, thereby ensuring that the antifreeze assembly 100 can operate normally.

[0068] like Figure 2 As shown, the antifreeze component 100 also includes a heating component 20, and the pipeline 10 also includes a shunt pipeline 12, the shunt pipeline 12 is connected to the first interface 111, and a second interface 121 is provided on the shunt pipeline 12; the heating component 20 is sleeved on the outer wall of the pipeline body 11 and is detachably connected to the pipeline 10, and the chamber of the shunt pipeline 12 is connected to the chamber of the heating component 20 through the second interface 121.

[0069] like Fig.11 As shown, the shunt pipe 12 extends out of the antifreeze connecting pipe 123, and the heating component 20 extends out of the heating connecting pipe 21. The antifreeze connecting pipe 123 is fixedly connected to the heating connecting pipe 21 so that when the second interface 121 is opened, the chamber of the shunt pipe 12 is connected with the chamber of the heating component 20. After the water flow in the pipe body 11 enters the chamber of the shunt pipe 12 from the first interface 111, it can flow into the chamber of the heating pipe 10 through the second interface 121 to trigger the heating component 20 to heat up. The heating component 20 is sleeved on the pipe body 11 and the outer wall of the pipe body 11 is wrapped. When the heating component 20 releases heat, the thermal efficiency can be maximized, the heating time can be shortened, and the freezing of the pipe 10 can be avoided. The heating component 20 is detachably connected to the pipe 10, which is convenient for removing the heating component 20 for maintenance or replacing materials.

[0070] The antifreeze assembly 100 includes a second slider 50; the outer wall of the second slider 50 is in contact with the inner wall of the shunt pipe 12 and the second slider 50 can move in the shunt pipe 12, and the second slider 50 can move to the second interface 121 and close the second interface 121 to prevent the chamber of the shunt pipe 12 from communicating with the chamber of the heating assembly 20. The heating assembly 20 includes a heating material, which is disposed in the chamber of the heating assembly 20, and the heating material is configured to release heat to heat the pipe 10 after contacting water.

[0071] In this embodiment, the outer wall of the second slider 50 fits with the inner wall of the shunt pipe 12, preventing water from leaking out from the gap between the second slider 50 and the inner wall of the shunt pipe 12, and the opening and closing of the second interface 121 is controlled by the movement of the second slider 50. When the second interface 121 is opened, water flows through the second slider 50, enters the heating connecting pipe 21 of the heating component 20 from the antifreeze connecting pipe 123 of the shunt pipe 12, and releases heat to heat the pipe 10 after contacting the heating material in the heating component 20. In this process, no external power supply or other external energy is required to provide energy to realize the heating function. This means that in this non-powered state, as long as the second interface 121 is opened, water flows from the chamber of the shunt pipe 12 into the chamber of the heating component 20 to realize the antifreeze function. When the ambient temperature drops, the heating component 20 can automatically start the antifreeze function to prevent equipment damage.

[0072] like Figure 7 As shown, the antifreeze assembly 100 also includes a second elastic member 60, which is arranged in the chamber of the shunt pipe 12, one end of the second elastic member 60 is connected and fixed to the second slider 50, and the other end of the second elastic member 60 is connected and fixed to the shunt pipe 12, and the second elastic member 60 is used to provide an elastic force to the second slider 50 away from the second interface 121.

[0073] In this embodiment, one end of the second elastic member 60 is fixed to the shunt pipe 12 and cannot move, and the other end is connected to the second slider 50, and is compressed or stretched during the movement of the second slider 50. When the second elastic member 60 stretches, it provides an elastic force to the second slider 50 away from the second interface 121. At this time, the second interface 121 is closed, the chamber of the shunt pipe 12 is not connected to the chamber of the heating component 20, and the heating component 20 cannot start automatically.

[0074] like Figure 4 As shown, the flow-dividing pipeline 12 further includes a second fixing member 122 . The second fixing member 122 is located at a side away from the second interface 121 to limit the moving distance of the second sliding block 50 .

[0075] In this embodiment, one end of the second slider 50 is connected to the second elastic member 60, and the second elastic member 60 limits the movable distance of the second slider 50 in the direction of the second elastic member 60. The fixing member arranged on the inner wall of the diversion pipe 12 limits the moving distance of the second slider 50 to prevent the second slider 50 from moving too far or even moving out of the diversion pipe 12 under the action of gravity or elastic force.

[0076] like Figure 7 As shown, the second slider 50 includes a through hole. In the present embodiment, the through holes are arranged as a first through hole 511 and a second through hole 512. The first through hole 511 is connected to the first interface 111, and the opening of the second through hole 512 is located on the side wall of the second slider 50. When the water pressure in the shunt pipe 12 is less than or equal to the second preset value, the opening of the second through hole 512 located on the side wall of the second slider 50 is attached to the inner wall of the shunt pipe 12; when the water pressure in the shunt pipe 12 is greater than the second preset value, the opening of the second through hole 512 located on the side wall of the second slider 50 is connected to the second interface 121.

[0077] like Figure 6 As shown, the pipe 10 includes a first fixing member 112 disposed on the inner side wall of the pipe body 11, and the outer side wall of the first slider 30 is in contact with the inner side wall of the pipe body 11; the first fixing member 112 is used to limit the moving distance of the first slider 30. The pipe 10 also includes a third fixing member 113 disposed on the inner side wall of the pipe body 11, and one end of the first elastic member 40 away from the first slider 30 is connected and fixed to the third fixing member 113.

[0078] like Figure 8 As shown, the first slider 30 includes at least one main through hole 31 , and the water flow moving in the radial direction of the pipe body 11 passes through the first slider 30 through the main through hole 31 .

[0079] In this embodiment, a plurality of through holes are provided on the first slider 30, and the plurality of through holes are evenly spaced along the circumferential and radial directions of the cross section of the first slider 30, thereby ensuring that the water flows evenly through the first slider 30 while also ensuring that the pressure of the water flow on the first slider 30 is uniform as much as possible, thereby avoiding component loss caused by uneven force for a long time.

[0080] The first fixing member 112 is provided on the inner wall of the pipe body 11 to limit the maximum distance of the first slider 30 away from the first elastic member 40, so as to prevent the first slider 30 from moving too far under the action of elastic force or water flow pressure. The first fixing member 112 is provided as an arc-shaped member that fits tightly against the inner wall, and while limiting the displacement of the first slider 30, it will not affect the normal flow of water. The end of the first elastic member 40 away from the first slider 30 is fixed on the third fixing member 113 to limit the position of the first elastic member 40 in the pipe body 11 and the direction of elastic deformation, that is, to limit the direction of the elastic force, and ensure that the first elastic member 40 exerts an elastic force on the first slider 30 to move away from the first interface 111.

[0081] Based on the antifreeze component 100 , the present invention provides a water heater, which includes the antifreeze component 100 as described above.

[0082] In this embodiment, the first elastic member 40 and the second elastic member 60 can be set as springs. In other alternative embodiments, the first elastic member 40 and the second elastic member 60 can be set as other elastic materials, including but not limited to rubber; the through hole provided on the second slider 50 can be selectively set to one or more. In this case, one end of the through hole opens to the first interface 111, and the other end of the through hole opens on the side wall of the second slider 50. When the water pressure in the diversion pipe 12 is greater than the second preset value, the opening of the through hole located on the side wall of the second slider 50 is connected to the second interface 121.

[0083] In this embodiment, the working process of the heating component is as follows:

[0084] State 1: when the water pressure in the pipeline body 11 is less than the first preset value and gradually increases toward the first preset value.

[0085] like Fig. 9 As shown, the water flows unidirectionally along the pipeline (here it is assumed that the water flows from left to right), and a force F1 is generated on the first slider 30 along the direction of the water flow, that is, to the right, where F1 = P1 / S1 = ρv2 / S1; the elastic force F of the first spring itself a =K1*x, when it deforms, it will exert a leftward force F on the first slider 30 a In summary, the first slider 30 is subjected to the rightward force F1 and the leftward force F a , F1 and F a are all variables. F1 increases with the increase of water flow speed, pushing the first slider 30 to move rightward. Assuming that it moves rightward by △x, then F a = K1△x, the first slider 30 is under two opposite forces F1 and F a Under the action of F3, it can move along the diameter of the pipeline body 11 within the limit, and the resultant force F3=F1+F aWhen the first slider 30 moves to the right, it gradually blocks the first interface 111 until the channel is completely closed. When the first interface 111 is completely closed, the displacement of the first slider 30 is x1, and F3max=ρ*vmax2 / S1+K1*x1.

[0086] 2. The second slider 50 is located in the vertical direction of the water flow, and the force exerted by the water is set to F2, which is in the upward direction. F2 = P2 / S2, where P2 is the hydrostatic pressure exerted on the second slider 50, and S2 is the area of ​​the second slider 50 affected by the hydrostatic pressure (the water at the second slider 50 is almost stagnant, and the force exerted is the hydrostatic pressure). The force exerted by the second spring on the second slider 50 is set to F b , F b =K2*x, the direction is downward. The second slider 50 is between F2 and F b Under the action of , F2 increases with the increase of hydrostatic pressure, pushing the second slider 50 upward. Assuming the upward movement is △x, then F b =K2*△x, the resultant force F4=F2+F b .

[0087] State 2: the water in the pipe body 11 freezes and the water pressure in the diversion pipe 12 is greater than the second preset value.

[0088] like Fig.11 As shown, when the water in the pipe 10 freezes, the first slider 30 does not move because the water flow is in a static state, the first interface 111 is open, and the shunt pipe 12 is in a connected state. Since the water is in a static state at this time, the pressure in the pipe body 11 is equal to P2, and since the density of ice per unit mass is greater than the density of water, the pressure P2 in the pipe body 11 continues to increase, and the force F2 received by the second slider 50 also increases accordingly, pushing the second slider 50 to overcome the elastic force of the second spring and move upward (the freezing of water in the pipeline is a gradual process, and before it is completely frozen, the pipeline is a mixture of ice and water), until the displacement of the second slider 50 reaches x2, at which time the second through hole 512 in the second slider 50 is connected to the second interface 121, the antifreeze connecting pipe 123 of the shunt pipe 12 is connected to the heating connecting pipe 21 of the heating component 20, and water flows into the heating component 20 from the first through hole 511 and the second through hole 512 in the second slider 50, and the heating component 20 reacts to generate heat to achieve heating of the pipeline. When the bypass pipe 12 is opened, F4max=P2max / S2+K2*x2.

[0089] State three: when the water pressure in the pipeline body 11 is greater than the first preset value.

[0090] like Fig.10As shown, when the water flow velocity in the pipe 10 is too high and the water pressure in the pipe body 11 is greater than the first preset value, the first slider 30 will move to the right, close the first interface 111, and thus block the diversion pipe 12. The force F3max required to close the first interface 111 is less than the force F4max required to open the second interface 121, ρ*vmax2 / S1+K1*x1<P2max / S2+K2*x2. Therefore, when there is water flow, the closing of the first interface 111 will precede the opening of the first interface 111, thereby avoiding the wrong start of the heating component 20 due to the excessive water flow velocity in the pipe body 11.

[0091] 5. The elastic coefficients K1 and K2 of the spring, and the force-bearing areas S1 and S2 of the slider can be designed and selected according to actual needs, but must satisfy ρ*vmax2 / S1+K1*x1<P2max / S2+K2*x2. P2max is the maximum pressure that the components that need antifreeze protection can withstand. A certain margin must be left when actually selecting, because the second interface 121 still needs a certain distance from the beginning of connection to full opening, and the heating component 20 needs to work for a long time to ensure the antifreeze effect.

[0092] The forces mentioned in this embodiment are all vectors.

[0093] Example 2

[0094] This embodiment provides another antifreeze assembly 100. The antifreeze assembly 100 in this embodiment has the same basic structure as the antifreeze assembly 100 in Embodiment 1, except that the second slider 50 in the antifreeze assembly 100 in this embodiment does not include a through hole.

[0095] Specifically, the outer wall of the second slider 50 fits the inner wall of the shunt pipe 12 and is slidable. No through hole is set on the second slider 50. When the water pressure in the shunt pipe 12 is less than or equal to the second preset value, the side wall of the second slider 50 closes the second interface 121, so that the chamber of the shunt pipe 12 is not connected with the chamber of the heating component, and the heating component 20 does not heat the pipe 10; when the water pressure in the shunt pipe 12 is greater than the second preset value, the second slider 50 is affected by the increase in the water pressure in the shunt pipe 12, and the second slider 50 is pushed to overcome the elastic force of the second spring to move until the side wall of the second slider 50 gradually moves away from the second interface 121, and the second interface 121 is gradually opened, so that the chamber of the shunt pipe 12 is connected with the chamber of the heating component 20, and water flows into the heating component 20 from the second interface 121, and the heating component 20 reacts to generate heat to achieve heating of the pipeline.

[0096] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An antifreeze component, characterized in that: The antifreeze assembly includes a pipeline, a first slider and a first elastic member; The pipeline includes a pipeline body, and the pipeline body includes a first interface; The first slider and the first elastic member are both disposed in the pipeline body, and the first elastic member is used to provide an elastic force to the first slider to move away from the first interface; When the water pressure in the pipeline body is greater than a first preset value, the first slider moves along the water flow direction and the first elastic member is compressed and deformed along the displacement direction of the first slider, and the first slider moves to the first interface and closes the first interface; The antifreeze component further includes a heating component, the pipeline further includes a shunt pipeline, the shunt pipeline is connected to the first interface, and a second interface is provided on the shunt pipeline; The heating component is sleeved on the outer wall of the pipeline body and is detachably connected to the pipeline, and the chamber of the diversion pipeline is connected to the chamber of the heating component through the second interface; The heating component comprises a heating material, and the heating material is arranged in a chamber of the heating component. The heating material is configured to release heat to heat the pipeline after contacting with water.

2. The antifreeze assembly according to claim 1, characterized in that The antifreeze component includes a second slider; the outer wall of the second slider is in contact with the inner wall of the shunt pipe and the second slider can move in the shunt pipe, the second slider can move to the second interface and close the second interface to prevent the chamber of the shunt pipe from communicating with the chamber of the heating component.

3. The antifreeze assembly according to claim 2, characterized in that The antifreeze assembly also includes a second elastic member, which is arranged in the chamber of the shunt pipe. One end of the second elastic member is connected and fixed to the second slider, and the other end of the second elastic member is connected and fixed to the shunt pipe. The second elastic member is used to provide an elastic force to the second slider away from the second interface.

4. The antifreeze assembly according to claim 2, characterized in that: The shunt pipeline further includes a second fixing member, and the second fixing member is located at a side away from the second interface to limit the moving distance of the second sliding block.

5. The antifreeze assembly according to claim 2, characterized in that: The second slider includes a through hole, one end opening of the through hole is communicated with the first interface, and the other end opening of the through hole is located on the side wall of the second slider. When the water pressure in the shunt pipe is less than or equal to a second preset value, the opening of the through hole located on the side wall of the second slider fits against the inner wall of the shunt pipe; when the water pressure in the shunt pipe is greater than the second preset value, the opening of the through hole located on the side wall of the second slider is communicated with the second interface.

6. The antifreeze assembly according to claim 1, characterized in that: The pipeline includes a first fixing member arranged on the inner side wall of the pipeline body, and the outer side wall of the first sliding block is in contact with the inner side wall of the pipeline body; the first fixing member is used to limit the moving distance of the first sliding block.

7. The antifreeze assembly according to claim 6, characterized in that The pipeline further comprises a third fixing member arranged on the inner side wall of the pipeline body, and one end of the first elastic member away from the first sliding block is connected and fixed to the third fixing member.

8. The antifreeze assembly according to claim 1, characterized in that The first slider includes at least one main through hole, and water flowing along the radial direction of the pipe body passes through the first slider through the main through hole.

9. A water heater, characterized in that: The water heater comprises an antifreeze assembly as claimed in any one of claims 1-8.

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