CN209743729U - anti-freezing device and anti-freezing early warning device - Google Patents

anti-freezing device and anti-freezing early warning device Download PDF

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Publication number
CN209743729U
CN209743729U CN201920464024.0U CN201920464024U CN209743729U CN 209743729 U CN209743729 U CN 209743729U CN 201920464024 U CN201920464024 U CN 201920464024U CN 209743729 U CN209743729 U CN 209743729U
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sealing ring
vent hole
exhaust
float
hole
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CN201920464024.0U
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岳建军
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Abstract

The utility model discloses an anti-freezing device, which relates to the technical field of running water pipelines and comprises a shell, a floater, a spring and a base; the upper exhaust hole and the lower exhaust hole are respectively arranged at the top end and the middle part of the shell, the floater and the spring are arranged in the shell in an embedded mode, the floater can move up and down, the spring is located below the floater, the top end of the floater is provided with a plug, the plug is provided with a first sealing ring, and the base is fixed at the bottom end of the shell, so that the phenomenon that the tap in the rural winter in the north is frozen can be effectively. Also discloses an anti-freezing early warning device, which comprises a shell, a floater, a base and a whistle; the top of casing is equipped with the exhaust post, is equipped with the exhaust hole on the top of exhaust post, is equipped with down the exhaust hole at the middle part of casing, places the casing in the float and can reciprocate, is equipped with the end cap on the top of float, is equipped with first sealing washer on the end cap, and the base is fixed in the casing bottom, and the steam whistle is fixed at the exhaust post of going up, can effectively avoid rural tap in winter in the north to freeze and the water pipe frost crack, can remind the user to drain again.

Description

anti-freezing device and anti-freezing early warning device
Technical Field
The embodiment of the utility model provides a relate to water pipe technical field, concretely relates to freeze-proof device and anti-freezing early warning device.
Background
Northern areas are cold in winter, often accompanied by low temperatures below zero. Some areas have time below zero for half a year, and the coldest areas have time below zero fifty degrees. In order to prevent the water pipe from bursting and the water pipe from freezing in winter, in northern rural areas, household water supply is fixed-point water supply and manual water discharge, and air is timely discharged after the water supply is stopped, so that water at the tail end of the water faucet and the household pipeline (generally exposed on the ground surface) flows back to the main water supply pipeline (generally buried deeply in the ground and cannot be frozen in winter), and the water in the tail end of the water faucet or the household pipeline is prevented from freezing. However, sometimes the water supply time is not fixed, and the user does not know that water is mistakenly discharged when supplying water, so that the drinking water is lack; when the water supply is stopped, the tap or the household pipeline is not known to be frozen, so that water cannot be discharged when the water is supplied next time.
SUMMERY OF THE UTILITY MODEL
therefore, the embodiment of the utility model provides an freeze-proof device and anti-freeze early warning device to solve rural winter in the north and stop water supply tap and easily freeze or supply water unknowingly problem.
in order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
According to a first aspect of embodiments of the present invention, an anti-freeze apparatus includes a housing, a float, a spring, and a base;
The float is arranged in the accommodating cavity, the top end of the float is provided with a plug matched with the upper vent, the plug is provided with a first sealing ring for sealing the plug and the upper vent, the side surface of the middle part of the float is provided with an exhaust groove, the upper part of the float is provided with an exhaust passage for communicating the exhaust groove with the top end of the float, the spring is arranged in the accommodating cavity and positioned below the float, the base is fixed at the bottom end of the shell and used for fixing the spring and the float in the accommodating cavity, and a drain hole communicated with the accommodating cavity is arranged below the base;
The floater can move up and down along the containing cavity, when the plug is positioned in the upper exhaust hole, the exhaust groove is positioned above the lower exhaust hole, and when the plug is separated from the upper exhaust hole, the exhaust groove is aligned with the lower exhaust hole.
Further, a first external thread is arranged on the side face of the upper portion of the shell and located above the lower exhaust hole.
Further, a prism surface matched with a wrench is arranged on the side surface of the upper portion of the shell, and the prism surface is located above the first external thread.
Further, a second sealing ring is arranged on the side face of the upper portion of the shell, and the second sealing ring is located below the first external thread.
Further, the upper side face and the lower side face of the float are respectively provided with a third sealing ring and a fourth sealing ring, the third sealing ring is located above the lower vent, the fourth sealing ring is located below the lower vent, and the third sealing ring and the fourth sealing ring are used for enabling the center of the plug to be coaxial with the center of the upper vent.
According to a second aspect of the embodiments of the present invention, an anti-freezing early warning device comprises a housing, a float, a base and a whistle;
the steam whistle is characterized in that a containing cavity with a downward opening is arranged in the shell, an exhaust column is arranged at the top end of the shell, an upper exhaust hole is arranged on the exhaust column, a lower exhaust hole is arranged in the middle of the shell, the upper exhaust hole and the lower exhaust hole are communicated with the containing cavity, the floater is arranged in the containing cavity, a plug matched with the upper exhaust hole is arranged at the top end of the floater, a first sealing ring used for sealing the plug and the upper exhaust hole is arranged on the plug, an exhaust groove is arranged on the side surface of the middle of the floater, an exhaust passage used for communicating the exhaust groove with the top of the floater is arranged on the side surface of the upper part of the floater, the base is fixed at the bottom end of the shell and used for fixing the floater in the containing cavity, a drain hole communicated with the containing cavity is arranged below the base, a fixing cavity with a downward opening is arranged in the steam whistle, a whistle hole, the flute holes and the upper exhaust holes are coaxial, have the same diameter and are arranged at intervals;
the floater can move up and down along the containing cavity, when the plug is positioned in the upper exhaust hole, the exhaust groove is positioned above the lower exhaust hole, and when the plug is separated from the upper exhaust hole, the exhaust groove is aligned with the lower exhaust hole.
Further, a first external thread is arranged on the side face of the upper portion of the shell and located above the lower exhaust hole.
further, a prism surface matched with a wrench is arranged on the side surface of the upper portion of the shell, and the prism surface is located above the first external thread.
Further, a second sealing ring is arranged on the side face of the upper portion of the shell, and the second sealing ring is located below the first external thread.
Further, the upper side face and the lower side face of the float are respectively provided with a third sealing ring and a fourth sealing ring, the third sealing ring is located above the lower vent, the fourth sealing ring is located below the lower vent, and the third sealing ring and the fourth sealing ring are used for enabling the center of the plug to be coaxial with the center of the upper vent.
The embodiment of the utility model provides a have following advantage:
The embodiment of the utility model provides an defroster installs the end at tap or the pipeline of registering one's residence. When the water supply is stopped, the pressurizing pump stops pressurizing, and a part of water in the main pipeline flows back to the underground water layer, so that the pressure in the main pipeline is reduced, and the water at the tap or at the tail end of the household pipeline flows back to the main pipeline; meanwhile, the atmospheric pressure acts on the plug in the upper exhaust hole, the floater moves downwards in the accommodating cavity under the action of the atmospheric pressure and the reduction of the pressure in the pipeline, so that the exhaust groove is aligned with the lower exhaust hole, and the outside air enters the pipeline through the upper exhaust hole, the exhaust groove and the lower exhaust hole, so that 'air release' is realized, and the tap is prevented from being frozen in winter.
The embodiment of the utility model provides an anti-freezing early warning device installs at tap or the end of the pipeline of registering one's residence. When water supply is started, a large amount of gas stored in the pipeline passes through the lower exhaust hole, the containing cavity, the upper exhaust hole and the flute holes of the flute under the action of pressurization of the water pump, the airflow blows the flute 5 to prompt a user that water supply is started, the user needs to drain water in time, otherwise, the user can drink water without water in one day. When the water supply is stopped, the pressurizing pump stops pressurizing, and a part of water in the main pipeline flows back to the underground water layer, so that the pressure in the main pipeline is reduced, and the water at the tap or at the tail end of the household pipeline flows back to the main pipeline; the floater loses the buoyancy and pressure of water, moves downwards in the accommodating cavity to align the exhaust groove with the lower exhaust hole, and outside air enters the pipeline through the upper exhaust hole, the exhaust groove and the lower exhaust hole, so that 'air release' is realized, and the tap is prevented from being frozen in winter.
Drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of an anti-freezing device provided in embodiment 1 of the present invention;
FIG. 2 is an exploded view of the antifreeze apparatus;
Fig. 3 is a schematic view (back side) of the base structure of embodiment 1 or 2 of the present invention;
fig. 4 is a schematic view of an installation state of embodiment 1 or 2 of the present invention;
fig. 5 is a schematic structural diagram of an anti-freezing early warning device provided in embodiment 2 of the present invention;
FIG. 6 is an exploded view of the anti-freeze warning device;
Fig. 7 is a schematic structural view (back) of a whistle of embodiment 2 of the present invention.
in the figure: 1-shell, 2-float, 3-spring, 4-base, 5-whistle, 6-tap, 11-upper vent, 12-lower vent, 13-first external thread, 14-prismatic surface, 15-second sealing ring, 16-vent column, 17-third external thread, 21-plug, 22-first sealing ring, 23-vent groove, 24-vent groove, 25-third sealing ring, 26-fourth sealing ring, 41-drain hole, 42-second external thread, 51-whistle hole, 52-third internal thread.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Example 1
As shown in fig. 1 to 4, embodiment 1 provides an antifreeze apparatus including a housing 1, a float 2, a spring 3, and a base 4.
The housing 1 is cylindrical. A containing cavity with a downward opening is arranged in the shell 1, and a second internal thread used for fixing the base 4 is arranged at the opening of the containing cavity. An upper vent hole 11 communicating with the receiving chamber is provided at the top end of the housing 1, and preferably, the upper vent hole 11 is provided at the center of the top end of the housing 1. The upper side surface of the shell 1 is provided with a prismatic surface 14 used for matching with a wrench, a first external thread 13 used for connecting with the water tap 6 or the service pipe end section, and a second sealing ring 15 used for sealing with the water tap 6 or the service pipe end section in sequence from top to bottom, preferably, the prismatic surface 14 and the second sealing ring 15 are respectively close to the upper starting end and the lower starting end of the first external thread 13 so as to reduce the structure size. The middle part of the shell 1 is provided with two lower exhaust holes 12 communicated with the containing cavity, and the two lower exhaust holes 12 are symmetrically arranged relative to the axis of the containing cavity.
The floater 2 is arranged in the accommodating cavity, and the side wall of the floater 2 is close to or attached to the side wall of the accommodating cavity. A stopper 21 is provided at the top end of the float 2 to be engaged with the upper vent hole 11, and preferably, the stopper 21 is provided at the center of the top end of the float 2. The plug 21 is provided with a first sealing ring 22 for sealing the plug 21 and the upper vent hole 11, and preferably, the first sealing ring 22 is provided at the root of the plug 21, i.e., at the connection between the plug 21 and the top end of the float 2. An exhaust groove 23 is arranged on the side surface of the middle part of the floater 2, an exhaust channel 24 for communicating the exhaust groove 23 with the top end of the floater 2 is arranged on the side surface of the upper part of the floater 2, and a plurality of exhaust channels 24, preferably two exhaust channels 24, can be arranged.
The spring 3 is arranged in the accommodating cavity and is positioned below the floater 2, and the spring 3 is in a compression state.
Be equipped with on the base 4 with second internal thread complex second external screw thread 42, fix in casing 1 bottom through screw-thread fit, base 4 is used for fixing spring 3 and float 2 in holding the intracavity, be equipped with under base 4 with hold the wash port 41 of chamber intercommunication, make spring 3 be in the state of compressing tightly through base 4 to make spring 3 possess certain elasticity to float 2.
In the using process or the working process, the floater 2 can slide up and down along the containing cavity, when the plug 21 is positioned in the upper vent 11, the first sealing ring 22 seals the upper vent 11, and the vent groove 23 is positioned above the lower vent 12; when the plug 21 is separated from the upper vent hole 11, the vent groove 23 is aligned with the lower vent hole 12, and the upper vent hole 11 is communicated with the lower vent hole 12, so that the outside air can enter the faucet 6 or the household pipeline.
When the anti-freezing device is used, the anti-freezing device provided by the embodiment is arranged at the tail end of the water faucet 6 or a household pipeline, the upper exhaust hole 11 is positioned outside the pipeline, the upper exhaust hole is upwards arranged and is vertical to the ground, and the lower exhaust hole 12 and the base 4 are positioned in the pipeline. Under the action of the spring 3, the plug 21 pushes the upper vent hole 11, under the action of the first sealing ring 22, the upper vent hole 11 is disconnected from the interior of the pipeline, and when water is discharged, the first sealing ring 22 is further pressed under the action of water pressure, so that the water in the pipeline is prevented from overflowing from the upper vent hole 11; when the water supply is stopped, the pressurizing pump stops pressurizing, and a part of water in the main pipeline flows back to the underground water layer, so that the pressure in the main pipeline is reduced, and the water at the water tap 6 or at the tail end of the household pipeline flows back to the main pipeline; meanwhile, the atmospheric pressure acts on the plug 21 in the upper exhaust hole 11, under the action of the atmospheric pressure and the reduction of the pressure in the pipeline, the floater 2 moves downwards in the accommodating cavity, so that the exhaust groove 23 is aligned with the lower exhaust hole 12, and the outside air (outside the faucet 6 or the pipeline) enters the pipeline through the upper exhaust hole 11, the exhaust groove 23 and the lower exhaust hole 12, so that 'air release' is realized, and the faucet 6 is prevented from being frozen in winter; when the air release is finished, the pressure in the pipeline is balanced with the external atmospheric pressure, and the floater 2 seals the upper vent hole 11 again under the action of the spring 3.
In this embodiment, a third sealing ring 25 and a fourth sealing ring 26 are further respectively disposed on the upper side and the lower side of the float 2, the third sealing ring 25 is located above the lower vent hole 12, the fourth sealing ring 26 is located below the lower vent hole 12, and the third sealing ring 25 and the fourth sealing ring 26 are used for making the center of the plug 21 coaxial with the center of the upper vent hole 11, so as to prevent the float 2 from being clamped in the accommodating cavity and being unable to move.
In this embodiment, when the anti-freezing device provided in this embodiment is installed, a filter screen can be additionally installed in the upstream pipeline, so as to prevent silt from damaging the sealing effect of the first sealing ring 22.
example 2
As shown in fig. 3 to 7, embodiment 2 provides an antifreeze warning apparatus including a housing 1, a float 2, a base 4, and a whistle 5.
The housing 1 is cylindrical. A containing cavity with a downward opening is arranged in the shell 1, and a second internal thread used for fixing the base 4 is arranged at the opening of the containing cavity. An exhaust column 16 is arranged at the top end of the shell 1, a third external thread 17 is arranged on the outer side of the exhaust column 16, and an upper exhaust hole 11 communicated with the accommodating cavity is arranged on the exhaust column 16, preferably, the exhaust column 16 is arranged at the center of the top end of the shell 1, and the upper exhaust hole 11 is arranged at the center of the exhaust column 16. The upper side surface of the housing 1 is provided with a prismatic surface 14 for matching with a wrench, a first external thread 13 for connecting with the water tap 6 or the service pipe end section, and a second sealing ring 15 for sealing with the water tap 6 or the service pipe end section in sequence from top to bottom, wherein the prismatic surface 14 and the second sealing ring 15 are preferably respectively close to the upper starting end and the lower starting end of the first external thread 13 so as to reduce the structure size. The middle part of the shell 1 is provided with two lower exhaust holes 12 communicated with the containing cavity, and the two lower exhaust holes 12 are symmetrically arranged relative to the axis of the containing cavity.
The floater 2 is arranged in the accommodating cavity, and the side wall of the floater 2 is close to or attached to the side wall of the accommodating cavity. A stopper 21 is provided at the top end of the float 2 to be engaged with the upper vent hole 11, and preferably, the stopper 21 is provided at the center of the top end of the float 2. The plug 21 is provided with a first sealing ring 22 for sealing the plug 21 and the upper vent hole 11, and preferably, the first sealing ring 22 is provided at the root of the plug 21, i.e., at the connection between the plug 21 and the top end of the float 2. An exhaust groove 23 is arranged on the side surface of the middle part of the floater 2, an exhaust channel 24 for communicating the exhaust groove 23 with the top end of the floater 2 is arranged on the side surface of the upper part of the floater 2, and a plurality of exhaust channels 24, preferably two exhaust channels 24, can be arranged.
A fixed cavity with a downward opening is arranged in the whistle 5, a third internal thread 52 matched with the third external thread 17 is arranged in the fixed cavity, a whistle hole 51 communicated with the fixed cavity is arranged at the top of the whistle 5, the whistle 5 is fixed with the third external thread 17 of the exhaust column 16 through the third internal thread 52 of the fixed cavity, and the whistle hole 51 is coaxial with the upper exhaust hole 11, equal in diameter and spaced.
The base 4 is provided with a second external thread 42 matched with the second internal thread and fixed at the bottom end of the shell 1 through thread matching, the base 4 is used for fixing the floater 2 in the accommodating cavity, and a drain hole 41 communicated with the accommodating cavity is arranged below the base 4.
In the using process or the working process, the floater 2 can slide up and down along the containing cavity, when the plug 21 is positioned in the upper vent 11, the first sealing ring 22 seals the upper vent 11, and the vent groove 23 is positioned above the lower vent 12; when the plug 21 is separated from the upper vent hole 11, the vent groove 23 is aligned with the lower vent hole 12, and the upper vent hole 11 is communicated with the lower vent hole 12, so that the outside air can enter the faucet 6 or the household pipeline.
During the use, install the early warning device that prevents frostbite that this embodiment provided at tap 6 or the end of the pipeline of registering one's residence, exhaust hole 11 is located outside the pipeline on it, and goes up exhaust hole upwards setting and perpendicular with ground, and lower exhaust hole 12 and base 4 are located the pipeline. In the state of water cut-off, the float 2 is at the bottom of the containing cavity, and the upper vent hole 11 is not blocked by the plug 21. When water supply is started, a large amount of gas accumulated in the pipeline flows through the lower exhaust holes 12, the accommodating cavity, the upper exhaust holes 11 and the flute holes 51 of the whistle 5 under the action of pressurization of the water pump, air flow blows the whistle 5 to prompt a user that water supply is started, the user needs to drain water in time, and otherwise the user can drink the water without water in one day. When the tap 6 is filled with water and the end of the household pipeline is reached, the floater 2 moves upwards along the containing cavity under the action of water pressure and buoyancy, the upper vent hole 11 is blocked by the plug 21, and the upper vent hole 11 is disconnected with the inside of the pipeline under the action of the first sealing ring 22, so that the overflow of the water in the pipeline from the upper vent hole 11 is avoided. When the water supply is stopped, the pressurizing pump stops pressurizing, and a part of water in the main pipeline flows back to the underground water layer, so that the pressure in the main pipeline is reduced, and the water at the water tap 6 or at the tail end of the household pipeline flows back to the main pipeline; the floater 2 loses the buoyancy and pressure of water, moves downwards in the accommodating cavity to align the exhaust groove 23 with the lower exhaust hole 12, and outside air (outside the faucet 6 or the pipeline) enters the pipeline through the upper exhaust hole 11, the exhaust groove 23 and the lower exhaust hole 12, so that 'air release' is realized, and the faucet 6 is prevented from being frozen in winter.
In addition, the whistle 5 has reminding, early warning function except, can also make the water in the pipeline unobstructed before the air in the evacuation pipeline for the booster pump reduces the loss when the pressurization, has prolonged life, and the power saving simultaneously, main pipeline, the pipeline of registering one's residence also can reduce the trouble because of normal pressure.
In this embodiment, a third sealing ring 25 and a fourth sealing ring 26 are further respectively disposed on the upper side and the lower side of the float 2, the third sealing ring 25 is located above the lower vent hole 12, the fourth sealing ring 26 is located below the lower vent hole 12, and the third sealing ring 25 and the fourth sealing ring 26 are used for making the center of the plug 21 coaxial with the center of the upper vent hole 11, so as to prevent the float 2 from being clamped in the accommodating cavity and being unable to move.
In this embodiment, when installing the anti-freezing early warning device that this embodiment provided, can install the filter screen additional in its upstream pipeline, avoid silt to damage the sealed effect of first sealing washer 22.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. an anti-freezing device, characterized in that it comprises a housing (1), a float (2), a spring (3) and a base (4);
A containing cavity with a downward opening is arranged in the shell (1), an upper vent hole (11) is arranged at the top end of the shell (1), a lower vent hole (12) is arranged in the middle of the shell (1), the upper vent hole (11) and the lower vent hole (12) are communicated with the containing cavity, the float (2) is arranged in the containing cavity, a plug (21) matched with the upper vent hole (11) is arranged at the top end of the float (2), a first sealing ring (22) used for sealing the plug (21) and the upper vent hole (11) is arranged on the plug (21), a vent groove (23) is arranged on the side surface of the middle of the float (2), an exhaust duct (24) used for communicating the vent groove (23) with the top end of the float (2) is arranged at the upper part of the float (2), the spring (3) is arranged in the containing cavity and located below the float (2), and the base (4) is fixed at the bottom end of the, the base (4) is used for fixing the spring (3) and the floater (2) in the accommodating cavity, and a drain hole (41) communicated with the accommodating cavity is formed below the base (4);
The floater (2) can move up and down along the containing cavity, when the plug (21) is positioned in the upper vent hole (11), the exhaust groove (23) is positioned above the lower vent hole (12), and when the plug (21) is separated from the upper vent hole (11), the exhaust groove (23) is aligned with the lower vent hole (12).
2. Anti-freeze arrangement according to claim 1, characterised in that a first external thread (13) is provided on the upper side of the housing (1), which first external thread (13) is located above the lower vent hole (12).
3. Anti-freeze device according to claim 2, characterised in that a prism surface (14) matching a wrench is provided on the upper side of the housing (1), which prism surface (14) is located above the first external thread (13).
4. Anti-freeze arrangement according to claim 2, characterised in that a second sealing ring (15) is provided on the upper side of the housing (1), which second sealing ring (15) is located below the first external thread (13).
5. Anti-freeze device according to claim 1, characterised in that on the upper and lower side of the float (2) there are also provided a third sealing ring (25) and a fourth sealing ring (26), respectively, the third sealing ring (25) being located above the lower vent hole (12) and the fourth sealing ring (26) being located below the lower vent hole (12), the third sealing ring (25) and the fourth sealing ring (26) being used to make the centre of the stopper (21) coaxial with the centre of the upper vent hole (11).
6. an anti-freezing early warning device is characterized by comprising a shell (1), a floater (2), a base (4) and a whistle (5);
The improved air-conditioning float is characterized in that a containing cavity with a downward opening is arranged in the shell (1), an exhaust column (16) is arranged at the top end of the shell (1), an upper exhaust hole (11) is arranged on the exhaust column (16), a lower exhaust hole (12) is arranged in the middle of the shell (1), the upper exhaust hole (11) and the lower exhaust hole (12) are communicated with the containing cavity, the float (2) is arranged in the containing cavity, a plug (21) matched with the upper exhaust hole (11) is arranged at the top end of the float (2), a first sealing ring (22) used for sealing the plug (21) and the upper exhaust hole (11) is arranged on the plug (21), an exhaust groove (23) is arranged on the side surface of the middle of the float (2), an exhaust passage (24) used for communicating the exhaust groove (23) with the top of the float (2) is arranged on the side surface of the upper portion of the float (2), the base (4) is fixed at the bottom end of the shell (1), a drain hole (41) communicated with the containing cavity is formed below the base (4), a fixed cavity with a downward opening is formed in the whistle (5), a whistle hole (51) communicated with the fixed cavity is formed in the top of the whistle (5), the whistle (5) is fixed with the exhaust column (16) through the fixed cavity, and the whistle hole (51) and the upper drain hole (11) are coaxial, equal in diameter and spaced;
the floater (2) can move up and down along the containing cavity, when the plug (21) is positioned in the upper vent hole (11), the exhaust groove (23) is positioned above the lower vent hole (12), and when the plug (21) is separated from the upper vent hole (11), the exhaust groove (23) is aligned with the lower vent hole (12).
7. The antifreeze warning device according to claim 6, characterized in that a first external thread (13) is provided on the upper side of the housing (1), and the first external thread (13) is located above the lower vent hole (12).
8. The antifreeze warning device according to claim 7, characterized in that a prism surface (14) matched with a wrench is arranged on the upper side surface of the housing (1), and the prism surface (14) is positioned above the first external thread (13).
9. The antifreeze warning device according to claim 7, characterized in that a second sealing ring (15) is arranged on the upper side of the housing (1), and the second sealing ring (15) is located below the first external thread (13).
10. The antifreeze warning device according to claim 6, wherein a third sealing ring (25) and a fourth sealing ring (26) are respectively arranged on the upper side and the lower side of the float (2), the third sealing ring (25) is positioned above the lower vent hole (12), the fourth sealing ring (26) is positioned below the lower vent hole (12), and the third sealing ring (25) and the fourth sealing ring (26) are used for enabling the center of the choke plug (21) to be coaxial with the center of the upper vent hole (11).
CN201920464024.0U 2019-04-08 2019-04-08 anti-freezing device and anti-freezing early warning device Active CN209743729U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920464024.0U CN209743729U (en) 2019-04-08 2019-04-08 anti-freezing device and anti-freezing early warning device

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Application Number Priority Date Filing Date Title
CN201920464024.0U CN209743729U (en) 2019-04-08 2019-04-08 anti-freezing device and anti-freezing early warning device

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Publication Number Publication Date
CN209743729U true CN209743729U (en) 2019-12-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920464024.0U Active CN209743729U (en) 2019-04-08 2019-04-08 anti-freezing device and anti-freezing early warning device

Country Status (1)

Country Link
CN (1) CN209743729U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882642A (en) * 2019-04-08 2019-06-14 岳建军 A kind of defroster and antifreeze prior-warning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882642A (en) * 2019-04-08 2019-06-14 岳建军 A kind of defroster and antifreeze prior-warning device
CN109882642B (en) * 2019-04-08 2024-04-26 岳建军 Anti-freezing device and anti-freezing early warning device

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