Anti-explosion water meter

Abstract

The invention relates to the technical field of water meters, and provides an anti-explosion water meter which comprises a water meter shell with a containing space. The adjusting mechanism is arranged in the accommodating space and is provided with a separator, and the separator divides the accommodating space into a first space and a second space; the metering mechanism is arranged in the first space, the metering mechanism is adjustably arranged in the first space, and the metering mechanism is used for measuring the amount of water flowing through the first space; the water meter information detection part is arranged in the first space or the second space; the control part is arranged on the water meter shell and electrically connected with the water meter information detection part and the adjusting mechanism, and the control part controls the partition piece to move according to the pressure or the liquid flow rate in the first space so as to control the size of the first space; and the separator drives the metering mechanism to move, so that the metering mechanism detects the adjusted water volume. According to the anti-explosion water meter, the pressure received by the water meter can be adjusted to be within a safe range, and the water volume of the water meter is measured after adjustment.

Description

Technical Field

[0001] The present application relates to the technical field of water meters, and in particular to an explosion-proof water meter. Background Art

[0002] Explosion-proof water meters are devices used to detect water consumption. They are professional water meters that prevent damage to the water meter caused by excessive water pressure during water use. They measure the flow rate of water through the water meter through the rotation speed of the turbine, and multiply it by the cross-sectional area through which it flows to obtain the water consumption, which is then displayed on the water meter display.

[0003] In the related art, when the water pressure is too high, the force on the walls of the explosion-proof water meter increases, which may cause the water meter to burst. In addition, in cold winters, the increase in the volume of water freezing in the explosion-proof water meter will cause the pressure on the walls of the water meter to increase, thereby causing the water meter to burst. Summary of the invention

[0004] The embodiment of the present application provides an explosion-proof water meter, which can improve the technical problem in the related art that excessive water pressure or ice formation in the water meter causes the pressure on each wall of the water meter to increase, resulting in the water meter bursting.

[0005] The embodiment of the present application provides an explosion-proof water meter, comprising:

[0006] A water meter housing, wherein the water meter housing has a receiving space;

[0007] an adjusting mechanism, the adjusting mechanism being arranged in the accommodating space, the adjusting mechanism comprising a partition, the partition being adjustably arranged in the accommodating space and partitioning the accommodating space into a first space and a second space, the first space being not connected to the second space;

[0008] a metering mechanism, the metering mechanism being adjustably disposed in the first space, one end of the metering mechanism being in contact with the partition, and the other end of the metering mechanism being in contact with the inner top wall of the first space; the metering mechanism being used to measure the amount of water flowing through the first space;

[0009] a water meter information detection unit, the water meter information detection unit being disposed in the first space or the second space and configured to detect the pressure or liquid flow rate in the first space; and

[0010] A control unit, wherein the control unit is disposed on the water meter housing, and the control unit is electrically connected to the water meter information detection unit and the regulating mechanism, and is used to control the regulating mechanism according to the pressure or liquid flow rate in the first space detected by the water meter information detection unit, so that the regulating mechanism adjusts the movement of the partition to expand or reduce the first space; when the partition moves, it can drive at least part of the metering mechanism to move, so that the metering mechanism can detect the amount of water flowing through the first space after expansion or reduction.

[0011] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0012] The explosion-proof water meter provided in the embodiment of the present application is provided with a water meter housing having a accommodating space, an adjusting mechanism arranged in the accommodating space, a metering mechanism adjustably arranged in the first space, a water meter information detection unit arranged in the accommodating space, and a control unit arranged in the water meter housing, wherein the adjusting mechanism also includes a partition arranged in the accommodating space and dividing the accommodating space into a first space and a second space; the water meter information detection unit is used to detect pressure information reflecting the pressure of the water flow in the first space and flow rate information of the flow rate, and send them to the control unit, the control unit can process the received pressure information and flow rate information to generate control information, and adjust the adjusting mechanism based on the generated control information to move the partition in the accommodating space, thereby expanding or reducing the first space, thereby reducing the pressure of the liquid in the first space on the water meter housing; thereby, the explosion-proof water meter can adjust the partition to expand the first space and thereby reduce the pressure of the internal liquid freezing on the water meter housing when the internal liquid freezes in winter, thereby preventing the internal liquid of the explosion-proof water meter from freezing and propping up the explosion-proof water meter. When the pressure on the water meter shell is too great due to liquid flowing inside the water meter, the pressure on the water meter shell can be reduced by moving the partition to shrink the first space to prevent the water meter from bursting. At the same time, the metering mechanism and the partition can be adjusted synchronously so that the metering mechanism can measure the amount of water flowing through the first spaces of different sizes.

[0013] In some embodiments, the adjustment mechanism further comprises:

[0014] A driving member is disposed in the second space; the driving member is electrically connected to the control unit;

[0015] a gear, the gear being located in the second space and connected to a power output end of the driving member;

[0016] a rack, the rack being located in the second space and meshing with the gear; a moving direction of the rack being perpendicular to a moving direction of the partition; and

[0017] A connecting rod, wherein the connecting rod is located in the second space, one end of the connecting rod is hinged to one end of the rack, and the other end of the connecting rod is hinged to the partition;

[0018] Among them, the driving member is used to drive the gear to rotate forward or reversely; the forward rotation of the gear can drive the rack to move away from the connecting rod, so that the rack drives the partition to move toward the second space through the connecting rod, thereby expanding the first space; the reverse rotation of the gear can drive the rack to move toward the connecting rod, so that the rack drives the partition to move away from the second space through the connecting rod, thereby shrinking the first space.

[0019] In some embodiments, the adjustment mechanism further includes a sealing ring, which is sleeved on the periphery of the partition so that the partition can be slidably matched with the side wall of the water meter housing through the sealing ring.

[0020] In some embodiments, the adjustment mechanism further includes a rack limiting device, which is disposed in the second space; the rack limiting device has a rack movable space, and the rack is movably disposed in the rack movable space.

[0021] In some embodiments, the metering mechanism comprises:

[0022] A fixed axis, the fixed axis is located at the center of the first space and is connected to the partition;

[0023] a first turbine, the first turbine being rotatably disposed on the fixed shaft, and an installation space being opened toward a bottom wall of the partition; and

[0024] a second turbine, the second turbine being rotatably disposed on the fixed shaft and movably disposed in the installation space;

[0025] When the partition moves toward the second space, the second turbine can move toward the second space simultaneously with the partition; when the partition moves away from the second space, the second turbine moves away from the second space simultaneously with the partition.

[0026] In some embodiments, the metering mechanism also includes a fixing member, which is rotatably disposed on one end of the fixed shaft; a fixing matching groove is provided on the inner wall of the hole of the second turbine for rotationally matching with the fixed shaft, and the fixing member is at least partially located in the fixing matching groove.

[0027] In some embodiments, the fixing member includes a locking member and a thermal expansion layer, the thermal expansion layer is arranged on the side wall of the fixed shaft, and the locking member is arranged on the side wall of the thermal expansion layer; a fixed matching groove is opened on the side wall of the second turbine, and the locking member can be moved into the fixed matching groove; when the fixing member is matched with the second turbine, the locking member is at least partially located in the fixed matching groove; when the temperature is 0 degrees, the thermal expansion layer contracts, driving the locking member to move out of the fixed matching groove.

[0028] In some embodiments, the water meter information detection unit includes:

[0029] a pressure sensor, the pressure sensor being disposed in the first space or in the second space, the pressure sensor being electrically connected to the control unit, and the pressure sensor being used to detect the pressure in the first space; and

[0030] A flow velocity sensor is disposed in the first space, the flow velocity sensor is electrically connected to the control unit, and is used to detect the flow velocity of the liquid in the first space.

[0031] In some embodiments, the control unit is used to generate first control information when the pressure is higher than the maximum pressure of the preset pressure range and the liquid flow rate is 0, and the first control information is used to instruct the adjustment mechanism to adjust the partition to move toward the second space to expand the first space;

[0032] The control unit is used to generate second control information when the pressure information is higher than a preset pressure range and the liquid flow rate information is not displayed as 0, and the second control information is used to instruct the adjustment mechanism to adjust the partition to move back to the second space to reduce the first space;

[0033] The control unit is used to generate third control information when the pressure information is within or lower than a preset pressure range and the liquid flow rate is 0 or non-zero. The third control information is used to instruct the adjustment mechanism to adjust the partition to be fixed so as to keep the size of the first space unchanged.

[0034] In some embodiments, the explosion-proof water meter further includes a filtering device, which is disposed at the water inlet and is used to filter the liquid passing through the water inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 A schematic diagram of the main structure of an explosion-proof water meter provided in an embodiment of the present application;

[0037] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure in the AA direction;

[0038] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0039] Figure 4 A schematic diagram of the side structure of an explosion-proof water meter provided in an embodiment of the present application;

[0040] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0041] Figure 6 This is a schematic diagram of the three-dimensional structure of a portion of the adjustment mechanism used in an embodiment of the present application.

[0042] Among them, the reference numerals in the figure are:

[0043] 10. Water meter housing; 100. Accommodation space; 101. First space; 102. Second space; 11. Water inlet;

[0044] 20. Adjustment mechanism; 21. Separator; 22. Gear; 23. Rack; 24. Linking rod; 25. Sealing ring; 26. Rack stopper; 260. Rack activity space; 27. Driving member;

[0045] 30. metering mechanism; 31. fixed shaft; 32. first turbine; 320. installation space; 33. second turbine; 330. fixed matching groove; 34. fixing member; 341. locking member; 342. thermal expansion layer;

[0046] 40. Water meter information detection unit; 41. Pressure sensor; 42. Flow rate sensor;

[0047] 50. Control department;

[0048] 60. Filter device. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0052] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0055] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0056] An explosion-proof water meter is a device used to detect water consumption. It prevents the liquid in the explosion-proof water meter from exerting excessive pressure on the water meter shell during water use, causing the explosion-proof water meter to burst. The flow rate of water through the water meter is measured by the speed of the turbine, and the water consumption is obtained by multiplying it by the cross-sectional area through which the water flows, which is then displayed on the water meter display.

[0057] In the explosion-proof water meter in the related art, when the water pressure is too high, the force on the various walls of the water meter increases. When the pressure on the various walls of the water meter is greater than the maximum bearing pressure of the material of the water meter shell, the water meter may explode and disintegrate. In the cold winter, the increase in the volume of water frozen in the explosion-proof water meter will cause the pressure on the various walls of the water meter to increase. When the pressure on the various walls of the water meter is greater than the maximum bearing pressure of the material of the water meter shell, the water meter may explode and disintegrate.

[0058] Based on this, in order to improve the problem of water meters in related technologies exploding and disintegrating when the water pressure is too high or the inside is frozen, the embodiments of the present application provide the following solution.

[0059] Please also read Figure 1 and Figure 2 The embodiment of the present application provides an explosion-proof water meter, which includes a water meter housing 10, an adjustment mechanism 20, a metering mechanism 30, a water meter information detection unit 40 and a control unit 50. Among them:

[0060] The water meter housing 10 has a receiving space 100 .

[0061] The adjustment mechanism 20 is disposed in the accommodating space 100 . The adjustment mechanism 20 includes a partition 21 . The partition 21 is adjustably disposed in the accommodating space 100 and partitions the accommodating space 100 into a first space 101 and a second space 102 . The first space 101 is not connected to the second space 102 .

[0062] The metering mechanism 30 is adjustably disposed in the first space 101 , one end of the metering mechanism 30 abuts against the partition 21 , and the other end of the metering mechanism 30 abuts against the inner top wall of the first space 101 ; the metering mechanism 30 is used to measure the amount of water flowing through the first space 101 .

[0063] The water meter information detection unit 40 is disposed in the first space 101 or the second space 102 , and is used to detect the pressure or liquid flow rate in the first space 101 .

[0064] The control unit 50 is disposed on the water meter housing 10, and is electrically connected to the water meter information detection unit 40 and the regulating mechanism 20, and is used to control the regulating mechanism 20 according to the pressure or liquid flow rate in the first space 101 detected by the water meter information detection unit 40, so that the regulating mechanism 20 adjusts the partition 21 to move, thereby expanding or shrinking the first space 101; when the partition 21 moves, it can drive at least part of the metering mechanism 30 to move, so that the metering mechanism 30 can detect the amount of water flowing through the expanded or shrunk first space 101.

[0065] It can be understood that the water meter housing 10 is a device for accommodating the adjustment mechanism 20, the metering mechanism 30, the water meter information detection unit 40 and the control unit 50. The water meter housing 10 can be a cylindrical housing with a cylindrical accommodating space 100, a rectangular housing with a cylindrical accommodating space 100, etc.

[0066] The adjusting mechanism 20 is a mechanism for expanding or reducing the first space 101; for example, the adjusting mechanism 20 can be set as a mechanism in which a gear rack mechanism cooperates with a partition 21, one end of the rack 23 is connected to the partition 21, and the partition 21 is driven by the gear rack mechanism to move toward the first space 101 to reduce the first space 101 or move away from the first space 101 to expand the first space 101; for another example, the adjusting mechanism 20 can be set as a mechanism in which a small linear motor cooperates with the partition 21, the output end of the small linear motor is connected to the partition 21, and the partition 21 is driven by the small linear motor to move toward the first space 101 to reduce the first space 101 or move away from the first space 101 to expand the first space 101.

[0067] The metering mechanism 30 is a mechanism for measuring the amount of water flowing through the first space 101 before adjustment or the amount of water flowing through the first space 101 after adjustment; the metering mechanism 30 may be an adjustable turbine, a flow sensor, or the like.

[0068] The water meter information detection unit 40 is used to detect the pressure or fluid flow rate in the first space 101. The water meter information detection unit 40 can be a mechanical pressure sensor or a turbine flowmeter, a piezoelectric pressure sensor or an electromagnetic flowmeter.

[0069] The control unit 50 is a device for receiving the pressure information and flow rate information measured by the water meter information detection unit 40 and controlling the regulating mechanism 20. The control unit 50 can be a microcontroller (MCU), an embedded controller, etc.; the partition 21 is used to divide the accommodating space 100 into a first space 101 and a second space 102 that are not connected to each other. The partition 21 can be a cylindrical plate, a cylindrical shell, etc.

[0070] As can be seen from the above, the explosion-proof water meter provided in the embodiment of the present application is provided with a water meter housing 10 having a accommodating space 100, an adjusting mechanism 20 arranged in the accommodating space 100, a metering mechanism 30 adjustably arranged in the first space 101, a water meter information detection unit 40 arranged in the accommodating space 100, and a control unit 50 arranged in the water meter housing 10, wherein the adjusting mechanism 20 further includes a partition 21 arranged in the accommodating space 100 and dividing the accommodating space 100 into the first space 101 and the second space 102; the water meter information detection unit 40 is used to detect pressure information reflecting the pressure of the water flow in the first space 101 and the flow rate information of the flow rate. The information is sent to the control unit 50, which can process the received pressure information and flow rate information to generate control information, and adjust the adjustment mechanism 20 based on the generated control information to make the partition 21 move in the accommodation space 100, thereby expanding or reducing the first space 101, so as to reduce the pressure of the liquid in the first space 101 on the water meter housing 10; and thus, the explosion-proof water meter can adjust the partition 21 to expand the first space 101 and reduce the pressure of the internal liquid freezing on the water meter housing 10 in winter when the internal liquid freezes, so as to prevent the explosion-proof water meter from freezing and opening the explosion-proof water meter. When the pressure on the water meter housing 10 is too large when the liquid in the water meter flows, the pressure on the water meter housing 10 can be reduced by moving the partition 21 to shrink the first space 101 to prevent the water meter from bursting, and at the same time, the metering mechanism 30 and the partition 21 are adjusted synchronously, so that the metering mechanism 30 can measure the amount of water flowing through the first space 101 of different sizes.

[0071] In some embodiments, please refer to Figures 3 to 5 The adjustment mechanism 20 further includes a driving member 27, a gear 22, a rack 23 and a connecting rod 24. Wherein:

[0072] The driving member 27 is disposed in the second space 102 ; the driving member 27 is electrically connected to the control unit 50 .

[0073] The gear 22 is located in the second space 102 , and the gear 22 is connected to the power output end of the driving member 27 .

[0074] The rack 23 is located in the second space 102 , and is meshed with the gear 22 ; the moving direction of the rack 23 is perpendicular to the moving direction of the partition 21 .

[0075] The connecting rod 24 is located in the second space 102 , and one end of the connecting rod 24 is hinged to one end of the rack 23 , and the other end of the connecting rod 24 is hinged to the partition 21 .

[0076] Among them, the driving member 27 is used to drive the gear 22 to rotate forward or reversely; the forward rotation of the gear 22 can drive the rack 23 to move away from the connecting rod 24, so that the rack 23 drives the partition 21 to move toward the second space 102 through the connecting rod 24, thereby expanding the first space 101; the reverse rotation of the gear 22 can drive the rack 23 to move toward the connecting rod 24, so that the rack 23 drives the partition 21 to move away from the second space 102 through the connecting rod 24, thereby shrinking the first space 101.

[0077] It can be understood that the driving member 27 is a device for driving the gear 22 to rotate, and the driving member 27 can be an electric motor, a small internal combustion engine, etc.

[0078] In this way, the drive member 27 is arranged to drive the gear 22 to rotate, so that the gear 22 drives the linkage rod 24 to rotate through the rack 23, and then the linkage rod 24 drives the partition 21 to move, thereby expanding or reducing the first space 101; compared with the device in which the gear rack mechanism cooperates with the partition 21, the above scheme can make the adjustable range of the first space 101 larger. Compared with the device in which the linkage structure cooperates with the partition 21, the above scheme can accurately expand or reduce the first space 101.

[0079] Optionally, in some embodiments, see Figures 1 to 5 The adjustment mechanism 20 further includes a sealing ring 25 , which is sleeved on the periphery of the partition 21 , so that the partition 21 can slide with the side wall of the water meter housing 10 through the sealing ring 25 .

[0080] In this configuration, a sealing ring 25 is provided between the partition 21 and the water meter housing 10 to completely separate the first space 101 from the second space 102, thereby preventing the liquid in the first space 101 from penetrating into the second space 102 and affecting the normal operation of the explosion-proof water meter.

[0081] Optionally, see Figures 1 to 5 The adjustment mechanism 20 also includes a rack limiting device 26, which is disposed in the second space 102; the rack limiting device 26 has a rack activity space 260, and the rack 23 is movably disposed in the rack activity space 260.

[0082] It can be understood that the rack limiting device 26 is a device for supporting the rack 23 and limiting the moving direction of the rack 23. The rack limiting device 26 can be a rectangular parallelepiped housing, a rectangular parallelepiped guide rail, etc.

[0083] In this way, the rack limiting device 26 is arranged so that the rack 23 can be stably meshed with the gear 22, and the rack limiting device 26 is provided with a rack activity space 260, the rack activity space 260 has three side walls, one side surface is away from the gear 22, and the other two sides are parallel to the bottom wall of the water meter housing 10. The rack 23 is arranged in the rack activity space 260. The rack 23 can be moved in a direction perpendicular to the moving direction of the partition 21, thereby increasing the range of movement of the rack 23, thereby increasing the adjustment range of the adjustment mechanism 20.

[0084] For example, see Figures 1 to 5 The metering mechanism 30 includes a fixed shaft 31, a first turbine 32 and a second turbine 33.

[0085] The fixed shaft 31 is located at the center of the first space 101 , and is connected to the partition 21 .

[0086] The first turbine 32 is rotatably disposed on the fixed shaft 31 , and an installation space 320 is opened on the bottom wall of the first turbine 32 toward the partition 21 .

[0087] The second turbine 33 is rotatably disposed on the fixed shaft 31 , and the second turbine 33 is movably disposed in the installation space 320 .

[0088] When the partition 21 moves toward the second space 102 , the second turbine 33 can move toward the second space 102 simultaneously with the partition 21 ; when the partition 21 moves away from the second space 102 , the second turbine 33 moves away from the second space 102 simultaneously with the partition 21 .

[0089] It can be understood that the cross section of the installation space 320 can accommodate the cross section of the second turbine 33. The first turbine 32 and the second turbine 33 together constitute a measuring mechanism for measuring the amount of water passing through the first space 101; the first turbine 32 and the second turbine 33 can be two rotating impellers combined together, and the combined rotating impellers can be height-adjustable, the water flow in the first space 101 drives the measuring mechanism to rotate together, and the rotating shaft of the measuring mechanism 30 is connected to the gear of the water meter display.

[0090] In this way, by combining the metering mechanism 30 with a rotatable but immovable first turbine 32, a fixed shaft 31 fixedly connected to the partition 21, and a second turbine 33 that can rotate around the fixed shaft 31 and move together with the fixed shaft 31, the movement of the partition 21 can drive the fixed shaft 31 and the second turbine 33 to move together, so that the second turbine 33 moves in the installation space 320; compared with the conventional metering unit that cannot change the size of the turbine, the above scheme can enable the metering mechanism 30 composed of the first turbine 32, the fixed shaft 31 and the second turbine 33 to change the metering range as the partition 21 moves, and the metering range is always equal to the first space 101, so that the metering mechanism 30 can measure the flow rate flowing through the first spaces 101 of different sizes, so that the metering mechanism 30 can adjust the pressure on the water meter housing 10 without affecting the metering function of the explosion-proof water meter.

[0091] In some embodiments, see Figure 2 and Figure 3 The metering mechanism 30 also includes a fixing member 34, which is rotatably arranged on the fixed shaft 31; a fixing matching groove 330 is opened on the inner wall of the hole of the second turbine 33 for rotationally matching with the fixed shaft 31, and the fixing member 34 is at least partially located in the fixing matching groove 330.

[0092] It can be understood that the fixing member 34 is a device for enabling the second turbine 33 to move together with the fixed shaft 31 without affecting the rotation. For example, the fixing member 34 can be a rotating bearing provided with a fixed small body, and the rotating bearing is fixedly connected to the second turbine 33 by matching the fixed small body with the fixed matching groove 330, and the second turbine 33 is driven to move by the movement of the rotating bearing; for another example, the fixing member 34 can be set as a three-dimensional ring with a fixed small body, and the fixed shaft 31 is set to have a section of cylindrical radius smaller than the cylindrical radius at both ends, the inner diameter of the three-dimensional ring matches the radius of the small radius cylinder, and the three-dimensional ring is installed on the small radius cylinder, so that the partition 21 can drive the three-dimensional ring to move without affecting the rotation.

[0093] In this way, the second turbine 33 is set on the fixed shaft 31 by the fixing part 34, and the second turbine 33 is driven to move through the fixed shaft 31 through the fixing part 34, and the rotation of the second turbine 33 is not affected. Compared with setting the second turbine 33 on the fixed shaft 31, the above scheme can provide power for the movement of the second turbine 33, avoiding that it is stuck due to insufficient power and cannot move with the partition 21, thereby affecting the metering function of the explosion-proof water meter.

[0094] Optionally, in some embodiments, see Figures 1 to 5 The water meter information detection unit 40 includes a pressure sensor 41 and a flow rate sensor 42. Among them:

[0095] The pressure sensor 41 is disposed in the first space 101 or the second space 102 . The pressure sensor 41 is electrically connected to the control unit 50 . The pressure sensor 41 is used to detect the pressure in the first space 101 .

[0096] The flow rate sensor 42 is disposed in the first space 101 . The flow rate sensor 42 is electrically connected to the control unit 50 . The flow rate sensor 42 is used to detect the flow rate of the liquid in the first space 101 .

[0097] In this way, the pressure sensor 41 and the flow rate sensor 42 are provided to measure the pressure and flow rate of the liquid in the first space 101 , so that the pressure of the liquid on the water meter housing 10 and the flow rate of the liquid can be digitized and sent to the control unit 50 .

[0098] Optionally, see Figures 1 to 5 The fixing member 34 includes a locking member 341 and a thermal expansion layer 342. The thermal expansion layer 342 is arranged on the side wall of the fixed shaft 31, and the locking member 341 is arranged on the side wall of the thermal expansion layer 342. A fixed matching groove 330 is opened on the side wall of the second turbine 33, and the locking member 341 can be moved into the fixed matching groove. When the fixing member 34 is matched with the second turbine 33, the locking member 341 is at least partially located in the fixed matching groove 330. When the temperature is 0 degrees, the thermal expansion layer 330 contracts, driving the locking member 341 to move out of the fixed matching groove 330.

[0099] It can be understood that the clamping member 341 is a member for fixing the second turbine 33 on the fixed shaft 31; the clamping member 341 can be a block or a column, etc. The thermal expansion layer 342 is a member for pushing the clamping member 341; the thermal expansion layer 342 can be a polyethylene ring or a polypropylene ring.

[0100] In this way, when the temperature of the internal liquid is above 0 degrees, the thermal expansion layer 342 expands and drives the retaining member 341, and makes the retaining member 341 at least partially located in the fixed matching groove 330, thereby connecting the fixing member 34 with the second turbine 33; when the temperature of the internal liquid is below 0 degrees, the thermal expansion layer 342 expands and drives the retaining member 341, and makes the retaining member 341 move out of the fixed matching groove 330, thereby disconnecting the fixing member 34 from the second turbine 33; the above scheme can make it possible for the internal liquid to be in an ice-water mixture and the connection between the first turbine 32 and the second turbine 33 to be frozen, so that the driving force required to drive the partition 21 toward the second space 102 is small, and the damage to the first turbine 32 and the second turbine 33 caused by the partition 21 when the connection between the first turbine 32 and the second turbine 33 is frozen is reduced.

[0101] In some embodiments, see Figures 1 to 4, the control unit 50 is used to generate first control information when the pressure is higher than the maximum pressure of the preset pressure range and the liquid flow rate is 0, and the first control information is used to instruct the adjustment mechanism 20 to adjust the partition 21 to move toward the second space 102 to expand the first space 101;

[0102] The control unit 50 is used to generate second control information when the pressure information is higher than the preset pressure range and the liquid flow rate information is not displayed as 0; the second control information is used to instruct the adjustment mechanism 20 to adjust the partition 21 to move back to the second space 102 to reduce the first space 101.

[0103] The control unit 50 is used to generate third control information when the pressure information is within or below the preset pressure range and the liquid flow rate is 0 or non-zero. The third control information is used to instruct the adjustment mechanism 20 to adjust the partition 21 to be fixed to keep the size of the first space 101 unchanged.

[0104] It can be understood that when the water meter housing 10 is made of plastic, the preset pressure range is 600 kPa-1000 kPa; when the water meter housing 10 is made of metal, the preset pressure range is 1600 kPa-2500 kPa.

[0105] In this arrangement, the control unit 50 is used to receive the pressure information and flow rate information detected by the pressure sensor 41 and the flow rate sensor 42 and generate control information, and the control unit 50 is used to adjust the adjustment mechanism 20 based on the control information so that the adjustment mechanism 20 can move the partition 21 to expand or reduce the first space 101; this scheme can adjust the explosion-proof water meter according to the pressure information and flow rate information of the liquid inside the first space 101.

[0106] In some embodiments, see Figure 5 The water meter housing 10 also includes a water inlet 11 . The explosion-proof water meter also includes a filtering device 60 . The filtering device 60 is disposed at the water inlet 11 and filters the liquid passing through the water inlet 11 .

[0107] It can be understood that the filtering device 60 is a device for filtering the liquid entering the first space 101 .

[0108] In this way, by providing a filter device 60 at the water inlet, the explosion-proof water meter can remove impurities from the liquid entering the interior thereof, so as to prevent the explosion-proof water meter from being blocked.

[0109] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An explosion-proof water meter, characterized in that: The explosion-proof water meter comprises: A water meter housing, wherein the water meter housing has a receiving space; an adjusting mechanism, the adjusting mechanism being arranged in the accommodating space, the adjusting mechanism comprising a partition, the partition being adjustably arranged in the accommodating space and partitioning the accommodating space into a first space and a second space, the first space being not connected to the second space; a metering mechanism, the metering mechanism being adjustably disposed in the first space, one end of the metering mechanism being in contact with the partition, and the other end of the metering mechanism being in contact with the inner top wall of the first space; the metering mechanism being used to measure the amount of water flowing through the first space; a water meter information detection unit, the water meter information detection unit being disposed in the first space or the second space and configured to detect the pressure or liquid flow rate in the first space; and A control unit, wherein the control unit is disposed on the water meter housing, and the control unit is electrically connected to the water meter information detection unit and the regulating mechanism, and is used to control the regulating mechanism according to the pressure or liquid flow rate in the first space detected by the water meter information detection unit, so that the regulating mechanism adjusts the movement of the partition to expand or reduce the first space; when the partition moves, it can drive at least part of the metering mechanism to move, so that the metering mechanism can detect the amount of water flowing through the first space after expansion or reduction.

2. The explosion-proof water meter according to claim 1, characterized in that: The regulating mechanism also includes: A driving member is disposed in the second space; the driving member is electrically connected to the control unit; a gear, the gear being located in the second space and connected to a power output end of the driving member; a rack, the rack being located in the second space and meshing with the gear; a moving direction of the rack being perpendicular to a moving direction of the partition; and A connecting rod, wherein the connecting rod is located in the second space, one end of the connecting rod is hinged to one end of the rack, and the other end of the connecting rod is hinged to the partition; Among them, the driving member is used to drive the gear to rotate forward or reversely; the forward rotation of the gear can drive the rack to move away from the connecting rod, so that the rack drives the partition to move toward the second space through the connecting rod, thereby expanding the first space; the reverse rotation of the gear can drive the rack to move toward the connecting rod, so that the rack drives the partition to move away from the second space through the connecting rod, thereby shrinking the first space.

3. The explosion-proof water meter according to claim 2, characterized in that: The regulating mechanism further comprises a sealing ring, which is sleeved on the periphery of the partition so that the partition can be slidably matched with the side wall of the water meter housing through the sealing ring.

4. The explosion-proof water meter according to claim 3, characterized in that: The adjustment mechanism further comprises a rack limiting device, which is arranged in the second space; the rack limiting device has a rack activity space, and the rack is movably arranged in the rack activity space.

5. The explosion-proof water meter according to claim 4, characterized in that: The measuring mechanism comprises: A fixed axis, the fixed axis is located at the center of the first space and is connected to the partition; a first turbine, the first turbine being rotatably disposed on the fixed shaft, and an installation space being opened toward a bottom wall of the partition; and a second turbine, the second turbine being rotatably disposed on the fixed shaft and movably disposed in the installation space; When the partition moves toward the second space, the second turbine can move toward the second space simultaneously with the partition; when the partition moves away from the second space, the second turbine moves away from the second space simultaneously with the partition.

6. The explosion-proof water meter according to claim 5, characterized in that: The metering mechanism also includes a fixing part, which is rotatably arranged on one end of the fixed shaft; a fixing matching groove is opened on the inner wall of the hole of the second turbine for rotationally matching with the fixed shaft, and the fixing part is at least partially located in the fixing matching groove.

7. The explosion-proof water meter according to claim 6, characterized in that: The fixing part includes a locking part and a thermal expansion layer, the thermal expansion layer is arranged on the side wall of the fixed shaft, and the locking part is arranged on the side wall of the thermal expansion layer; a fixing matching groove is opened on the side wall of the second turbine, and the locking part can be moved into the fixing matching groove; when the fixing part is matched with the second turbine, the locking part is at least partially located in the fixing matching groove; when the temperature is 0 degrees, the thermal expansion layer contracts, driving the locking part to move out of the fixing matching groove.

8. The explosion-proof water meter according to claim 7, characterized in that: The water meter information detection unit comprises: a pressure sensor, the pressure sensor being disposed in the first space or in the second space, the pressure sensor being electrically connected to the control unit, and the pressure sensor being used to detect the pressure in the first space; and A flow velocity sensor is disposed in the first space, the flow velocity sensor is electrically connected to the control unit, and is used to detect the flow velocity of the liquid in the first space.

9. The explosion-proof water meter according to claim 8, characterized in that: The control unit is used to generate first control information when the pressure is higher than the maximum pressure of the preset pressure range and the liquid flow rate is 0, and the first control information is used to instruct the adjustment mechanism to adjust the partition to move toward the second space to expand the first space; The control unit is used to generate second control information when the pressure information is higher than a preset pressure range and the liquid flow rate information is not displayed as 0, and the second control information is used to instruct the adjustment mechanism to adjust the partition to move back to the second space to reduce the first space; The control unit is used to generate third control information when the pressure information is within or lower than a preset pressure range and the liquid flow rate is 0 or non-zero. The third control information is used to instruct the adjustment mechanism to adjust the partition to be fixed so as to keep the size of the first space unchanged.

10. The explosion-proof water meter according to claim 1, characterized in that: The explosion-proof water meter also includes a filtering device, which is arranged at the water inlet and is used to filter the liquid passing through the water inlet.

Images