Anti-freezing device for water meter

Abstract

The invention discloses an anti-freezing device for a water meter, and relates to the technical field of water meters. The device comprises a shell and a controller arranged in the shell; the shell is provided with an accommodating cavity; the water meter is arranged in the accommodating chamber; an electric heating piece is arranged in the containing cavity, and the containing cavity is filled with fused salt. A stirring assembly used for stirring fused salt and a lifting assembly used for driving the stirring assembly to do linear motion are arranged in the shell, and the stirring assembly and the electric heating piece are electrically connected with the controller. The anti-freezing water meter is reasonable in structural design and convenient to use, the anti-freezing capacity of the water meter is effectively improved, and meanwhile the service life of the water meter is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of water meters, and in particular relates to an antifreeze device for a water meter. Background Art

[0002] Water meter is an instrument that people need to use in their daily lives. Water meters can be divided into wet water meters and dry water meters according to their working methods. Generally, residential water meters are wet water meters, that is, when the water meter is working, its counting mechanism is immersed in water, and the measurement is more accurate than that of dry water meters.

[0003] When a wet water meter is working, the water inside the water meter will be filled with water due to its design structure. The water meter is generally installed outdoors. In winter, due to the low temperature, when water passes through the water meter, the inside of the water meter is prone to ice formation, which not only affects the normal water supply of the next day, but also easily damages the water meter in the long run, resulting in a reduction in its service life. Therefore, it is urgent to study an antifreeze device for water meters to solve the above problems. Summary of the invention

[0004] The present invention provides an antifreeze device for a water meter, the purpose of which is to solve the technical problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an antifreeze device for a water meter, comprising a shell and a controller arranged in the shell; the shell has a containing chamber; the water meter is arranged in the containing chamber; an electric heating plate is installed in the containing chamber, and the containing chamber is filled with molten salt; a stirring component for stirring the molten salt and a lifting component for driving the stirring component to move linearly are installed in the shell; the lifting component, the stirring component and the electric heating plate are electrically connected to the controller respectively.

[0007] As a preferred technical solution of the present invention, the shell includes a first cylinder and a second cylinder that are coaxial and distributed up and down; the first cylinder is sleeved on the upper part of the water meter; the second cylinder is sleeved on the lower part of the water meter; the interior of the first cylinder and the interior of the second cylinder jointly form the accommodating chamber; the lower port of the first cylinder is provided with a first outer flange; the lower end of the second cylinder is a closed structure; the upper port of the second cylinder is provided with a second outer flange; the second outer flange is connected to the first outer flange.

[0008] As a preferred technical solution of the present invention, a third cylinder is coaxially arranged on the outer side of the second cylinder; the upper port of the third cylinder is connected to the outer edge of the second outer flange; the lower end of the third cylinder is a closed structure; and a heat preservation chamber is formed between the third cylinder and the second cylinder.

[0009] As a preferred technical solution of the present invention, a pair of coaxially arranged first semicircular pieces are symmetrically arranged on the edge of the lower port of the first cylinder; a pair of coaxially arranged second semicircular pieces are symmetrically arranged on the edge of the upper port of the second cylinder; each of the second semicircular pieces forms a circular channel with the adjacent first semicircular pieces; the inlet and outlet ends of the water meter are respectively interspersed in the two circular channels.

[0010] As a preferred technical solution of the present invention, the stirring assembly includes a first servo motor vertically fixed in the insulation chamber; the output shaft of the first servo motor passes through the lower end closed structure of the second cylinder and is coaxially fixed with a drive disk; and a plurality of stirring blades are radially fixed on the circumferential side wall of the drive disk.

[0011] As a preferred technical solution of the present invention, a transmission ring is coaxially arranged above the driving disk; the transmission ring is gap-fitted with the lower periphery of the water meter, and the transmission ring is arranged in the accommodating chamber; a plurality of positioning columns corresponding to the stirring blades are vertically slidably inserted on the transmission ring; the lower ends of the plurality of positioning columns are respectively fixed to the end portions of the plurality of stirring blades away from the driving disk; and a plurality of mixing blades are radially fixed on the inner side surface of the transmission ring.

[0012] As a preferred technical solution of the present invention, the lifting component includes a lifting ring arranged in the heat preservation chamber; the lifting ring is coaxially arranged with the transmission ring; a plurality of screws are evenly distributed and vertically inserted on the lifting ring; a plurality of screws are threadedly matched with the lifting ring; the lower ends of the plurality of screws are rotatably connected to the inner wall of the third cylinder; a movable ring is coaxially rotatably connected to the inner side of the lifting ring; a plurality of first magnetic blocks are fixedly embedded on the inner side surface of the movable ring; a second magnetic block is arranged on the inner side of a plurality of the first magnetic blocks; a plurality of the second magnetic blocks are fixedly embedded on the outer side surface of the transmission ring; each of the second magnetic blocks has a different magnetic property from the relative inner side surface of the adjacent first magnetic block.

[0013] As a preferred technical solution of the present invention, the lower ends of the multiple screw rods are fixedly sleeved with a first pulley; a second servo motor is arranged between the multiple first pulleys; the second servo motor is fixed in the insulation chamber; the output shaft of the second servo motor is fixedly sleeved with a second pulley; the second pulley is connected to the multiple first pulleys through a belt drive.

[0014] The present invention has the following beneficial effects:

[0015] The present invention places a water meter in a containing chamber and fills the containing chamber with molten salt. When the temperature is relatively low, the molten salt is heated by an electric heating plate, and the molten salt is fully stirred by a stirring assembly and a lifting assembly, thereby heating the water meter. Since the thermal stability of molten salt is much higher than that of water and other commonly used working fluids, the water meter can be kept warm for a long time, which can not only effectively avoid the problem of ice formation inside the water meter, but also improve the antifreeze ability of the water meter, and also extend the service life of the water meter.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 The present invention is a schematic structural diagram of an antifreeze device for a water meter.

[0019] Figure 2 for Figure 1 The main view of the structure.

[0020] Figure 3 It is a schematic structural diagram of the shell of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the first cylinder of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the connection between the second cylinder and the third cylinder of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the stirring assembly of the present invention.

[0024] Figure 7 It is a structural schematic diagram of the lifting assembly of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-shell, 2-controller, 3-electric heating plate, 4-molten salt, 5-stirring assembly, 6-lifting assembly, 101-accommodating chamber, 102-first cylinder, 103-second cylinder, 104-first outer flange, 105-second outer flange, 106-third cylinder, 107-insulation chamber, 108-first semicircular sheet, 109-second semicircular sheet, 501-first servo motor, 502-drive disk, 503-stirring blade, 504-transmission ring, 505-positioning column, 506-mixing blade, 601-lifting ring, 602-screw, 603-movable ring, 604-first magnetic block, 605-second magnetic block, 606-first pulley, 607-second servo motor, 608-second pulley. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1-3 As shown, the present invention is an antifreeze device for a water meter, comprising a shell 1 and a controller 2 arranged in the shell 1; the shell 1 has a containing chamber 101; the water meter is arranged in the containing chamber 101; the bottom wall of the containing chamber 101 is provided with a conventional electric heating plate 3 in the art, and the containing chamber 101 is filled with a conventional molten salt 4 in the art; a stirring component 5 for stirring the molten salt 4 and a lifting component 6 for driving the stirring component 5 to move linearly are installed in the shell 1; the lifting component 6, the stirring component 5 and the electric heating plate 3 are electrically connected to the controller 2 respectively; the controller 2 is a conventional component in the art, and the controller 2 has a built-in conventional wireless communication module in the art. When in use, the water meter is placed in the accommodating chamber 101 and the molten salt 4 is filled in the accommodating chamber 101. When the temperature is relatively low, the molten salt 4 is heated by the electric heating plate 3, and then the molten salt 4 is fully stirred by the stirring component 5 and the lifting component 6, so as to heat the water meter. Since the thermal stability of the molten salt 4 is much higher than that of water and other commonly used working fluids, the water meter can be kept warm for a long time, which can not only effectively avoid the problem of ice formation inside the water meter, but also improve the antifreeze ability of the water meter, and also extend the service life of the water meter.

[0030] Embodiment 2:

[0031] Based on Example 1, Figure 3-5As shown, the housing 1 includes a first cylinder 102 and a second cylinder 103 which are coaxial and distributed up and down; the first cylinder 102 is sleeved on the upper part of the water meter; the second cylinder 103 is sleeved on the lower part of the water meter; the interior of the first cylinder 102 and the interior of the second cylinder 103 jointly form a containing chamber 101; the lower end of the first cylinder 102 is integrally formed with a first outer flange 104; the lower end of the second cylinder 103 is a closed structure; the upper end of the second cylinder 103 is integrally formed with a second outer flange 105; the second outer flange 105 is connected to the first outer flange 104 by bolts; the outer side of the second cylinder 103 is coaxially provided with a third Cylinder 106; the upper port of the third cylinder 106 is integrally formed on the outer edge of the second outer flange 105; the lower end of the third cylinder 106 is a closed structure; a heat preservation chamber 107 is formed between the third cylinder 106 and the second cylinder 103; a pair of coaxially arranged first semicircular pieces 108 are symmetrically integrally formed on the edge of the lower port of the first cylinder 102; a pair of coaxially arranged second semicircular pieces 109 are symmetrically integrally formed on the edge of the upper port of the second cylinder 103; each second semicircular piece 109 forms a circular channel with the adjacent first semicircular piece 108; the inlet end and the outlet end of the water meter are respectively interspersed in the two circular channels. When in use, the molten salt 4 is filled in the second cylinder 103, and the lower part of the water meter is set in the second cylinder 103, and then the first cylinder 102 is sleeved on the lower part of the water meter, and the inner side surface of the first cylinder 102 is fitted with the upper outer side surface of the water meter, and then the inlet end and the outlet end of the water meter are respectively inserted into the two circular channels, and then the second outer flange 105 is connected to the first outer flange 104 by bolts, so that the accommodating chamber 101 forms a closed space to avoid leakage of the molten salt 4; at the same time, by coaxially arranging the third cylinder 106 on the outside of the second cylinder 103, and forming a heat preservation chamber 107 between the third cylinder 106 and the second cylinder 103, the heat preservation performance and antifreeze performance of the water meter can be further improved.

[0032] Embodiment three:

[0033] Based on Example 2, Figure 2 and Figure 6As shown, the stirring assembly 5 includes a first servo motor 501 vertically bolted to the heat preservation chamber 107; the output shaft of the first servo motor 501 passes through the lower end closed structure of the second cylinder 103 and is coaxially bolted to the driving disk 502; the output shaft of the first servo motor 501 rotates with the lower end closed structure of the second cylinder 103; a plurality of stirring blades 503 are radially welded to the circumferential side wall of the driving disk 502; a transmission ring 504 is coaxially arranged above the driving disk 502; the transmission ring 504 is clearance-fitted with the lower outer periphery of the water meter, and the transmission ring 504 is arranged in the accommodating chamber 101; a plurality of positioning columns 505 corresponding to the stirring blades 503 are vertically slidably interspersed on the transmission ring 504; the lower ends of the plurality of positioning columns 505 are respectively fixed to one end of the plurality of stirring blades 503 away from the driving disk 502; and a plurality of mixing blades 506 are radially welded to the inner side surface of the transmission ring 504. When in use, the first servo motor 501 drives the driving disk 502 to rotate, prompting the stirring blade 503 to stir the molten salt 4. At the same time, the stirring blade 503 drives the mixing blade 506 to stir through the positioning column 505 and the transmission ring 504, further improving the stirring effect of the molten salt 4.

[0034] Embodiment 4:

[0035] Based on Example 3 Figure 2 and Figure 6-7As shown, the lifting assembly 6 includes a lifting ring 601 arranged in the heat preservation chamber 107; the lifting ring 601 is coaxially arranged with the transmission ring 504; a plurality of screws 602 are evenly distributed and vertically inserted on the lifting ring 601; the plurality of screws 602 are threadedly matched with the lifting ring 601; the lower ends of the plurality of screws 602 are rotatably connected to the inner wall of the third cylinder 106; the inner side of the lifting ring 601 is coaxially rotatably connected with a movable ring 603; the inner side of the movable ring 603 is fixedly embedded with a plurality of first magnetic blocks 604; the inner sides of the plurality of first magnetic blocks 604 are each provided with a second magnetic block 605; the plurality of second magnetic blocks 605 are fixedly embedded on the outer side of the transmission ring 504; each second magnetic block 60 5 are all magnetically different from the relative inner sides of the adjacent first magnetic blocks 604; the plurality of first magnetic blocks 604 and the plurality of second magnetic blocks 605 are all conventional permanent magnets in the art; the lower ends of the plurality of screw rods 602 are all keyed to the first pulley 606; a second servo motor 607 is arranged between the plurality of first pulleys 606; the rotation directions of the plurality of screw rods 602 are the same; the second servo motor 607 is bolted to the heat preservation chamber 107; the output shaft of the second servo motor 607 is keyed to the second pulley 608; the second pulley 608 is connected to the plurality of first pulleys 606 through a belt transmission; a plurality of tensioning wheels are connected to the belt; the upper ends of the plurality of tensioning wheels are rotatably connected to the lower end closed structure of the second cylinder 103. When in use, the second servo motor 607 drives multiple screws 602 to rotate synchronously via the second pulley 608 and the first pulley 606, so that the lifting ring 601 drives the transmission ring 504 to move up and down synchronously. Since the magnetic properties of each second magnetic block 605 are different from the relative inner side surfaces of the adjacent first magnetic block 604, the transmission ring 504 moves up and down on the positioning column 505 under the magnetic attraction between the first magnetic block 604 and the second magnetic block 605. Since the movable ring 603 is rotatably connected to the lifting ring 601, the movable ring 603 also rotates on the lifting ring 601 when the transmission ring 504 rotates, which effectively improves the stirring effect and mixing uniformity of the molten salt 4.

[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An antifreeze device for a water meter, characterized in that: It comprises a housing (1) and a controller (2) arranged in the housing (1); The shell (1) has a containing chamber (101); the water meter is arranged in the containing chamber (101); an electric heating plate (3) is installed in the containing chamber (101), and the containing chamber (101) is filled with molten salt (4); a stirring component (5) for stirring the molten salt (4) and a lifting component (6) for driving the stirring component (5) to move linearly are installed in the shell (1); the lifting component (6), the stirring component (5) and the electric heating plate (3) are respectively electrically connected to the controller (2).

2. The antifreeze device for a water meter according to claim 1, characterized in that: The shell (1) comprises a first cylinder (102) and a second cylinder (103) which are coaxial and distributed up and down; the first cylinder (102) is sleeved on the upper part of the water meter; the second cylinder (103) is sleeved on the lower part of the water meter; the interior of the first cylinder (102) and the interior of the second cylinder (103) together form the accommodating chamber (101); the lower end of the first cylinder (102) is provided with a first outer flange (104); the lower end of the second cylinder (103) is a closed structure; the upper end of the second cylinder (103) is provided with a second outer flange (105); the second outer flange (105) is connected to the first outer flange (104).

3. The antifreeze device for a water meter according to claim 2, characterized in that: A third cylinder (106) is coaxially arranged on the outer side of the second cylinder (103); the upper end of the third cylinder (106) is connected to the outer edge of the second outer flange (105); the lower end of the third cylinder (106) is a closed structure; and a heat preservation chamber (107) is formed between the third cylinder (106) and the second cylinder (103).

4. An antifreeze device for a water meter according to claim 2 or 3, characterized in that: A pair of coaxially arranged first semicircular plates (108) are symmetrically arranged at the edge of the lower port of the first cylinder (102); a pair of coaxially arranged second semicircular plates (109) are symmetrically arranged at the edge of the upper port of the second cylinder (103); each of the second semicircular plates (109) forms a circular channel with the adjacent first semicircular plates (108); the inlet end and the outlet end of the water meter are respectively interspersed in the two circular channels.

5. The antifreeze device for a water meter according to claim 3, characterized in that: The stirring assembly (5) comprises a first servo motor (501) vertically fixed in the heat preservation chamber (107); the output shaft of the first servo motor (501) passes through the lower end closed structure of the second cylinder (103) and is coaxially fixed with a driving disk (502); and a plurality of stirring blades (503) are radially fixed on the circumferential side wall of the driving disk (502).

6. The antifreeze device for a water meter according to claim 5, characterized in that: A transmission ring (504) is coaxially arranged above the driving disk (502); the transmission ring (504) is loosely fitted on the lower periphery of the water meter, and the transmission ring (504) is arranged in the accommodating chamber (101); a plurality of positioning posts (505) corresponding to the stirring blades (503) are vertically slidably inserted on the transmission ring (504); the lower ends of the plurality of positioning posts (505) are respectively fixed to one end of the plurality of stirring blades (503) away from the driving disk (502); and a plurality of mixing blades (506) are radially fixed on the inner side surface of the transmission ring (504).

7. The antifreeze device for a water meter according to claim 6, characterized in that: The lifting assembly (6) includes a lifting ring (601) disposed in the heat preservation chamber (107); the lifting ring (601) is coaxially disposed with the transmission ring (504); a plurality of screw rods (602) are evenly distributed and vertically inserted on the lifting ring (601); the plurality of screw rods (602) are threadedly engaged with the lifting ring (601); the lower ends of the plurality of screw rods (602) are rotatably connected to the inner side wall of the third cylinder (106); The inner side of the lowering ring (601) is coaxially rotatably connected with a movable ring (603); a plurality of first magnetic blocks (604) are fixedly embedded in the inner side surface of the movable ring (603); a second magnetic block (605) is arranged on the inner side of each of the plurality of first magnetic blocks (604); a plurality of the second magnetic blocks (605) are fixedly embedded in the outer side surface of the transmission ring (504); each of the second magnetic blocks (605) has a different magnetic property from the inner side surface opposite to the adjacent first magnetic block (604).

8. The antifreeze device for a water meter according to claim 7, characterized in that: The lower ends of the plurality of screw rods (602) are all fixedly sleeved with a first pulley (606); a second servo motor (607) is arranged between the plurality of the first pulleys (606); the second servo motor (607) is fixed in the heat preservation chamber (107); the output shaft of the second servo motor (607) is fixedly sleeved with a second pulley (608); the second pulley (608) is connected to the plurality of first pulleys (606) via a belt drive.

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