Volume correction instrument and flow meter

Abstract

The utility model provides a volume correction instrument and a flow meter, and relates to the technical field of detection. The volume correction instrument comprises a box body, a correction instrument main body and a bracket, the correction instrument main body is arranged in the inner cavity of the box body, so that the box body can protect the correction instrument main body. The bracket is rotatably connected with the box body, so that the box body and the correction instrument main body positioned in the box body can rotate relative to the bracket. The box body can be connected with the flowmeter main body of the flowmeter through the support, so that the box body can rotate relative to the flowmeter main body through the support, the position of the box body can be adjusted, and the box body can avoid other structures. The support is connected with the outer wall of the box body and located outside the inner cavity of the box body, so that the box body does not need to be detached when the support is connected with the box body, and the correction instrument body in the box body can be prevented from being exposed. Therefore, the risk that the correction instrument main body is replaced and damaged can be avoided.

Description

Technical Field

[0001] This application relates to a volume corrector and a flow meter, belonging to the field of detection technology. Background Technology

[0002] An ultrasonic flow meter is a type of flow meter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average velocity of the measured medium and the velocity of the sound wave in a stationary medium. It mainly consists of a transducer and a converter, and comes in different types, including Doppler method, velocity difference method, beam deflection method, noise method, and correlation method. The signal detected by the ultrasonic flow meter's sensor needs to be transmitted to a correction device for correction calculations to obtain the specific detection value.

[0003] Currently, the corrector is fixed to the flow meter by direct connection. When installing the plate and removing the corrector, the outer casing of the corrector needs to be removed, which makes the disassembly and assembly of the corrector inconvenient. At the same time, it will also expose the internal metering components of the corrector, which will lead to the risk of replacement or damage of the metering components and violate the usage specifications of the corrector. Utility Model Content

[0004] This application provides a volume corrector and a flow meter, which solves the problem of inconvenience in installing the corrector on the flow meter in related technologies.

[0005] In a first aspect, this application provides a volume correction device, comprising:

[0006] The box has an internal cavity;

[0007] The main body of the corrector is disposed in the inner cavity;

[0008] The bracket is at least partially rotatably connected to the outer wall of the box, and the bracket is located outside the inner cavity.

[0009] In some embodiments, the bracket includes a fixed part and a movable part, the movable part being connected to the housing, and the movable part being rotatably connected to the fixed part.

[0010] In some embodiments, the fixed part is movably sleeved on the movable part, so that the movable part can rotate relative to the fixed part in the circumferential direction of the movable part.

[0011] In some embodiments, one end of the fixed part abuts against the box body along a first direction, where the first direction is the axial direction of the movable part.

[0012] In some embodiments, the movable part limits the fixed part in a second direction, which is opposite to the first direction.

[0013] In some embodiments, the movable part has a limiting protrusion, and the fixed part is provided with a limiting step surface, the limiting step surface is oriented in the second direction, and the limiting protrusion abuts against the limiting step surface.

[0014] In some embodiments, the volume corrector further includes a fastener that passes through the movable part and connects to the housing.

[0015] In some embodiments, the fastener is threadedly connected to the housing.

[0016] In some embodiments, the fixing part has a fixing hole that extends through the fixing part along the axial direction of the movable part.

[0017] Secondly, based on the volume corrector described above, this application also proposes a flow meter, including a flow meter body and the volume corrector described above, wherein the bracket is connected to the flow meter body.

[0018] In the volume corrector provided in this application, the corrector body is housed within the inner cavity of a housing, allowing the housing to protect the corrector body. A bracket is rotatably connected to the housing, enabling the housing and the corrector body within it to rotate relative to the bracket. The housing can be connected to the flowmeter body of a flow meter via the bracket, allowing the housing to rotate relative to the flowmeter body. This adjusts the housing's position, allowing it to avoid interference with other structures. The bracket is connected to the outer wall of the housing, and since the bracket is located outside the inner cavity of the housing, connecting the bracket to the housing does not require disassembling the housing, thus preventing the corrector body within the housing from being exposed. This mitigates the risk of the corrector body being replaced or damaged.

[0019] The flow meter provided in this application includes the aforementioned volume corrector. The support of the volume corrector is connected to the main body of the flow meter, allowing the housing to rotate relative to the main body of the flow meter via the support, making the assembly of the flow meter more convenient. Attached Figure Description

[0020] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0021] Figure 1 This is a schematic diagram of the volume corrector according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the internal structure of the volume correction device according to an embodiment of this application;

[0023] Figure 3 for Figure 2 A magnified view of area A in the middle;

[0024] Figure 4 This is a schematic diagram showing the connection between the volume corrector and the flow meter body in an embodiment of this application;

[0025] Figure 5 This is an exploded structural diagram of the volume corrector according to an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the internal structure of the housing of the volume corrector according to an embodiment of this application;

[0027] Figure 7 This is a schematic diagram of the structure of the first cavity of the volume correction device according to an embodiment of this application;

[0028] Figure 8 This is a schematic diagram of the second cavity of the volume corrector according to an embodiment of this application;

[0029] Figure 9 This is an exploded structural diagram of the housing of the volume corrector according to an embodiment of this application.

[0030] Figure label:

[0031] 100 - Box body, 110 - Inner cavity, 120 - First shell part, 121 - First cavity, 122 - First loading / unloading port, 123 - Communicating hole, 130 - Second shell part, 131 - Second cavity, 132 - Second loading / unloading port, 140 - Second sealing ring, 150 - Lead seal.

[0032] 200 - Cover plate, 210 - Connector

[0033] 300 - Corrector body; 310 - Circuit board; 320 - Power supply component; 321 - Battery; 322 - Battery compartment housing; 323 - Battery cavity; 330 - Sensor connector.

[0034] 400 - Bracket, 410 - Movable part, 411 - Limiting protrusion, 420 - Fixing part, 421 - Limiting stepped surface, 422 - Fixing hole, 430 - Fastener, 440 - First sealing ring

[0035] 500-Flowmeter body. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] An ultrasonic flow meter is a type of flow meter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average velocity of the measured medium and the velocity of the sound wave in a stationary medium. It mainly consists of a transducer and a converter, and comes in different types, including Doppler method, velocity difference method, beam deflection method, noise method, and correlation method. The signal detected by the ultrasonic flow meter's sensor needs to be transmitted to a correction device for correction calculations to obtain the specific detection value.

[0043] Currently, the corrector is fixed to the flow meter by direct connection. When installing the plate and removing the corrector, the outer casing of the corrector needs to be removed, which makes the disassembly and assembly of the corrector inconvenient. At the same time, it will also expose the internal metering components of the corrector, which will lead to the risk of replacement or damage of the metering components and violate the usage specifications of the corrector.

[0044] In the volume corrector proposed in this application, the corrector body is housed within the inner cavity of a housing, allowing the housing to protect the corrector body. A bracket is rotatably connected to the housing, enabling the housing and the corrector body within it to rotate relative to the bracket. The housing can be connected to the flowmeter body of a flow meter via the bracket, allowing the housing to rotate relative to the flowmeter body. This adjusts the housing's position, allowing it to avoid interference with other structures. The bracket is connected to the outer wall of the housing, and since the bracket is located outside the inner cavity of the housing, connecting the bracket to the housing does not require disassembling the housing, thus preventing the corrector body within the housing from being exposed. This mitigates the risk of the corrector body being replaced or damaged.

[0045] The flow meter proposed in this application includes the aforementioned volume corrector. The support of the volume corrector is connected to the main body of the flow meter, allowing the housing to rotate relative to the main body of the flow meter via the support, making the assembly of the flow meter more convenient.

[0046] The volume corrector and flow meter provided in this application will be described in detail below with reference to specific embodiments.

[0047] This application proposes a volume correction device, with reference to... Figure 1 , Figure 2 and Figure 4 As shown, it includes a housing 100, a corrector body 300, and a support 400. This volume corrector can be used in flow meters.

[0048] The housing 100 is the basic component of the volume corrector of this application. The housing 100 provides a mounting base for at least some of the other components of the volume corrector and serves to protect them. The housing 100 can be made of metal, giving it better structural strength, thus improving its durability and reliability. Alternatively, the housing 100 can be made of polymer materials, allowing it to maintain a certain structural strength while remaining relatively lightweight.

[0049] The housing 100 has an inner cavity 110, which is a hollow structure within the housing 100. The corrector body 300 is disposed in the inner cavity 110 of the housing 100. The corrector body 300 can also be electrically connected to the flow meter body 500 of the flow meter, so that the signal detected by the sensor of the flow meter body 500 can be transmitted to the corrector body 300. The corrector body 300 can calculate the actual flow rate, temperature, pressure, etc. based on the electrical signal transmitted by the flow meter body 500.

[0050] At least a portion of the bracket 400 is rotatably connected to the housing 100, allowing the housing 100 to rotate relative to the bracket 400. The bracket 400 can also be connected to the flowmeter body 500, thus fixing the flowmeter body 500 to the housing 100 via the bracket 400. Correspondingly, when the housing 100 rotates relative to the bracket 400, the housing 100 can rotate relative to the flowmeter body 500, thereby adjusting the position of the housing 100 to allow it to avoid interference with other structures.

[0051] Specifically, when the volume corrector of this application is applied to a flow meter and the flow meter is installed in a pipeline, by rotating the housing 100 relative to the bracket 400, the position of the housing 100 can be adjusted to avoid the pipeline structure, thereby making it easier to install the flow meter in complex pipeline environments.

[0052] The bracket 400 is connected to the outer wall of the housing 100, and the bracket 400 is located outside the inner cavity 110 of the housing 100, so that the bracket 400 will not extend into the inner cavity 110 of the housing 100 when connected to the housing 100. Correspondingly, it is not necessary to open the inner cavity 110 of the housing 100 when installing the bracket 400 and the housing 100, thus avoiding the exposure of the correction instrument body 300 in the inner cavity 110 of the housing 100 and avoiding the risk of the correction instrument body 300 being replaced or damaged. In addition, it also makes the connection between the bracket 400 and the housing 100 convenient.

[0053] In some implementations, reference Figure 2 , Figure 3 and Figure 5 As shown, in order to allow at least a portion of the bracket 400 to be rotatably connected to the housing 100, the bracket 400 may be provided with a fixed portion 420 and a movable portion 410. The movable portion 410 is fixedly connected to the housing 100, and is also rotatably connected to the fixed portion 420. Correspondingly, the fixed portion 420 can be fixedly connected to the flowmeter body 500. Thus, when the movable portion 410 rotates relative to the fixed portion 420, it can cause the housing 100 to rotate relative to the fixed portion 420.

[0054] Furthermore, by configuring the bracket 400 to include a fixed part 420 and a movable part 410, the fixed part 420 and the movable part 410 can be manufactured separately and then assembled. Accordingly, if either the fixed part 420 or the movable part 410 is damaged, it can be replaced individually, reducing the maintenance cost of the bracket 400.

[0055] In some implementations, reference Figure 3 and Figure 5 As shown, in order for the movable part 410 to rotate relative to the fixed part 420, the fixed part 420 is movably sleeved on the movable part 410, allowing the movable part 410 to rotate circumferentially relative to the fixed part 420, thereby allowing the box body 100 to rotate circumferentially along the movable part 410. By sleeved on the movable part 410, the fixed part 420 and the movable part 410 can be mutually limited in the radial direction of the movable part 410, thereby improving the connection stability between the fixed part 420 and the movable part 410. A first sealing ring 440 can also be provided between the fixed part 420 and the box body 100 to improve the sealing performance between the box body 100 and the fixed part 420.

[0056] In some implementations, reference Figure 3 and Figure 5 As shown, to further improve the connection stability between the bracket 400 and the housing 100, one end of the fixing part 420 abuts against the housing 100 along the first direction. The first direction is the axial direction of the movable part 410, i.e. Figure 3 In the X direction, when the fixing part 420 is subjected to a force in the first direction, the box body 100 can limit the fixing part 420, preventing it from moving further in the first direction, thus fixing the fixing part 420 relative to the box body 100 in the first direction. Correspondingly, when the box body 100 is subjected to a force in the second direction opposite to the first direction, the fixing part 420 can limit the box body 100 in the second direction, thus fixing the box body 100.

[0057] In some implementations, reference Figure 2 and Figure 3As shown, to further improve the connection stability between the bracket 400 and the box 100, the movable part 410 can be configured as an upper limit fixing part 420 in the second direction. Thus, when the fixing part 420 is subjected to a force in the second direction, the movable part 410 can limit the fixing part 420, preventing it from continuing to move along the second direction, thereby fixing the fixing part 420 and the movable part 410 relative to each other in the second direction. Correspondingly, when the movable part 410 is subjected to a force in the first direction, the fixing part 420 can limit the movable part 410 in the first direction, thereby limiting the box 100 in the first direction, and thus fixing the box 100.

[0058] This allows the fixed part 420 to be fixed relative to the movable part 410 in the axial direction, so that the box body 100 can maintain structural stability when rotating relative to the fixed part 420.

[0059] In some implementations, reference Figure 2 and Figure 3 As shown, in order to allow the movable part 410 to be positioned above the fixed part 420 in the second direction, the movable part 410 may be provided with a limiting protrusion 411, and the fixed part 420 may be provided with a limiting step surface 421. The limiting step surface 421 faces the second direction, and the limiting protrusion 411 abuts against the limiting step surface 421. In this way, when the fixed part 420 is subjected to a force in the second direction, the limiting protrusion 411 of the movable part 410 can block the limiting step surface 421, thereby positioning the fixed part 420 above the fixed part 420 in the second direction.

[0060] Specifically, the limiting protrusion 411 is an annular protrusion structure provided around the main body of the movable part 410. The limiting protrusion 411 and the main body of the movable part 410 are an integral structure, which makes the structural stability of the movable part 410 better.

[0061] In some implementations, reference Figure 2 and Figure 3 As shown, in order to enable the movable part 410 to be connected to the box body 100, the volume correction device of this application may also be provided with a fastener 430, which is inserted through the movable part 410 and connected to the box body 100, so that the fastener 430 can fix the movable part 410 to the box body 100.

[0062] Specifically, the fastener 430 can be threaded into the housing 100. Correspondingly, the fastener 430 can be a bolt, and the housing 100 can have a threaded hole. The fastener 430 can be screwed into the threaded hole of the housing 100, thereby fixing it to the housing 100 and thus fixing the movable part 410 to the housing 100. It should be understood that, to prevent the fastener 430 from extending into the inner cavity 110 of the housing 100, the housing 100 can be provided with a certain thickness, so that the threaded hole of the housing 100 has a certain length, thus making the fastener 430 more stable when fixed in the threaded hole of the housing 100.

[0063] In some implementations, reference Figure 1 As shown, in order to allow the bracket 400 of this application to be connected to an external structure, such as the flow meter body, the fixing part 420 may have a fixing hole 422, which extends through the fixing part 420 along the axial direction of the movable part 410. Specifically, the fixing hole 422 may be a through hole, and a screw hole may be provided on the flow meter body. By passing a bolt through the fixing hole 422 and screwing it into the screw hole of the flow meter body, the fixing part 420 can be fixed to the flow meter body.

[0064] The number of fixing holes 422 can be set to multiple, and the multiple fixing holes 422 can be arranged at intervals along the circumference of the fixing part 420, so that there are multiple connection points between the fixing part 420 and the flow meter body, thereby improving the connection stability between the fixing part 420 and the flow meter body.

[0065] In some implementations, reference Figure 6 and Figure 7 As shown, the volume corrector of this application may also include a cover plate 200, and the inner cavity 110 includes a first cavity 121 and a second cavity 131 separated from each other. The first cavity 121 and the second cavity 131 are separated by a partition structure inside the box 100, so that the first cavity 121 and the second cavity 131 are independent of each other. The box 100 also has a first loading port 122, which may be located on the surface of the box 100. The first loading port 122 communicates with the first cavity 121, so that the external environment communicating with the first loading port 122 is also communicating with the first cavity 121.

[0066] A cover plate 200 is detachably disposed at the first access port 122 of the housing 100, so that when the cover plate 200 is connected to the housing 100, it can block the first access port 122, thereby enclosing the first cavity 121 between the housing 100 and the cover plate 200. The main body 300 of the corrector can be configured to include a power supply component 320 and a circuit board 310. The power supply component 320 is disposed in the first cavity 121, and the circuit board 310 is disposed in the second cavity 131. The power supply component 320 is electrically connected to the circuit board 310, so that the power supply component 320 can supply power to the circuit board 310. The circuit board 310 can also be electrically connected to the flow meter body 500 of the flow meter, so that the signal detected by the sensor of the flow meter body 500 can be transmitted to the circuit board 310. The circuit board 310 can calculate the actual flow rate, temperature, pressure, etc. based on the electrical signal transmitted by the flow meter body 500.

[0067] In some implementations, reference Figure 6As shown, the main body 300 of the correction device includes a power supply component 320 and a circuit board 310. The power supply component 320 and the circuit board 310 are respectively disposed in the first cavity 121 and the second cavity 131, allowing the power supply component 320 and the circuit board 310 to be separated. When it is necessary to disassemble and replace the power supply component 320, the cover plate 200 can be separated from the housing 100, so that the first access port 122 of the housing 100 can be opened, allowing the power supply component 320 to be taken out or placed in the first cavity 121 through the first access port 122. Since the first cavity 121 and the second cavity 131 are separated, the second cavity 131 remains closed when the first cavity 121 is exposed, ensuring that the circuit board 310 in the second cavity 131 will not be replaced or damaged. After the power supply component 320 is repaired or replaced, the cover plate 200 can be reinstalled on the box 100 to block the first take-out port 122, and the volume corrector of this application can continue to be used without re-testing and certification, which improves the convenience of testing and maintenance of the volume corrector.

[0068] In some implementations, reference Figures 6 to 8 As shown, in order to form a first cavity 121 and a second cavity 131 separated from each other within the housing 100 of this application, the housing 100 may be provided with a first shell portion 120 and a second shell portion 130. The first cavity 121 is located within the first shell portion 120, and the first access port 122 is also located within the first shell portion 120, specifically on the surface of the first shell portion 120, allowing the cover plate 200 to be detachably connected to the first shell portion 120. The power supply component 320 is disposed within the first cavity 121. When it is necessary to disassemble and replace the power supply component 320, the cover plate 200 can be separated from the first shell portion 120, allowing the first access port 122 of the first shell portion 120 to be opened, thus enabling the power supply component 320 to be taken out or placed from the first cavity 121 through the first access port 122.

[0069] The second cavity 131 is disposed within the second housing portion 130, and correspondingly, the circuit board 310 is disposed within the second housing portion 130. The second housing portion 130 also has a second access port 132, which can be located on the surface of the second housing portion 130. The second access port 132 communicates with the second cavity 131, so that the external environment communicating with the second access port 132 is also communicating with the second cavity 131. The first housing portion 120 is detachably disposed at the second access port 132 of the second housing portion 130, so that when the second housing portion 130 is connected to the first housing portion 120, the first housing portion 120 can block the second access port 132, thereby enclosing the second cavity 131 between the first housing portion 120 and the second housing portion 130.

[0070] When it is necessary to replace or repair the power supply component 320, the cover plate 200 is removed from the first access port 122 of the first housing 120, exposing the power supply component 320. The outer wall of the first housing 120 blocks the second access port 132 of the second housing 130, preventing the circuit board 310 from being exposed and avoiding the risk of the circuit board 310 being replaced or damaged. When it is determined that the circuit board 310 needs to be replaced or repaired, the first housing 120 and the second housing 130 can be separated, exposing the second access port 132 of the second housing 130. In this way, the circuit board 310 can be taken out or placed from the second cavity 131 of the second housing 130 through the second access port 132.

[0071] In some implementations, reference Figure 6 As shown, to make the structure of the volume corrector of this application more compact, the first pick-up and drop-out port 122 can be provided on the side of the first shell 120 facing away from the second shell 130, and the second pick-up and drop-out port 132 is located on the side of the second shell 130 facing the first shell 120, so that the first pick-up and drop-out port 122 and the second pick-up and drop-out port 132 have the same orientation. In this way, the first shell 120 and the second shell 130 can be stacked, making the structure of the volume corrector of this application more compact.

[0072] Specifically, both the first shell portion 120 and the second shell portion 130 can be configured as a rectangular structure, and the length and width dimensions of the first shell portion 120 and the second shell portion 130 can be set to be similar. By stacking the first shell portion 120 and the second shell portion 130, the size of the box 100 in one direction can be avoided to be too large, thereby making the structure of the box 100 relatively compact.

[0073] In some implementations, reference Figures 7 to 8 As shown, to facilitate convenient electrical connection between the volume corrector of this application and an external structure, such as the flow meter body, the volume corrector may also include a sensor connector 330, which is electrically connected to the circuit board 310. The sensor connector 330 serves as the interface structure for the volume corrector of this application. The sensor connector 330 is also used for electrical connection with the flow meter body, allowing data signals collected by the sensor on the flow meter body to be transmitted to the circuit board 310 via the sensor connector 330.

[0074] The sensor connector 330 can be disposed in the first housing portion 120, thereby allowing the sensor connector 330 to be fixedly installed. Specifically, the first housing portion 120 can have an opening for the sensor connector 330 to pass through, so that the sensor connector 330 passes through the first housing portion 120, with one end of the sensor connector located inside the first cavity 121 and the other end of the sensor connector 330 located outside the first cavity 121. In this way, the sensor connector 330 can be snapped and fixed onto the first housing portion 120. The end of the sensor connector 330 located inside the first cavity 121 can be electrically connected to the circuit board 310, and the end of the sensor connector 330 located outside the first housing portion 120 can be connected to the flow meter body.

[0075] In addition, the sensor connector 330 can also be fixed to the first housing 120 by means of a threaded connection. Specifically, the end of the sensor connector 330 located in the first cavity 121 can be threaded, and the sensor connector 330 can be fixed to the thread of the sensor connector 330 by bolts.

[0076] In some embodiments, to enable the sensor connector 330 and power supply unit 320 to be electrically connected to the circuit board 310, the volume correction device of this application may further include a conductive element, which may be disposed within the first housing portion 120. One end of the conductive element is electrically connected to the circuit board 310, and the other end of the conductive element may be connected to both the sensor connector 330 and the power supply unit 320. By providing the conductive element, the electrical connection between the sensor connector 330 and the power supply unit 320 and the circuit board 310 can be made stable and reliable.

[0077] For details, please refer to Figures 7 to 8 As shown, the conductive component passes through the connecting hole 123 of the first housing 120. The connecting hole 123 can penetrate the outer wall of the first housing 120 that blocks the second access port 132, allowing the conductive component to be located entirely within the housing 100. The connection points between the conductive component and the sensor connector 330, and between the power supply component 320 and the circuit board 310, are located within the housing 100. This prevents the conductive component from being exposed outside the housing 100, thus protecting it. Consequently, the stability and reliability of the electrical connection between the conductive component and the sensor connector 330, the power supply component 320, and the circuit board 310 are improved.

[0078] Furthermore, by providing the connecting hole 123, the sensor connector 330, the power supply component 320, and the circuit board 310 can be electrically connected even with a shorter length of conductive component, thereby simplifying the structure of the conductive component.

[0079] In some embodiments, to enable the conductive component to electrically connect the sensor connector 330, the power supply component 320, and the circuit board 310, the conductive component may include multiple conductive parts. Specifically, the multiple conductive parts may be mutually opposing wire structures, with one end of each conductive part passing through the first housing 120 and electrically connected to the circuit board 310, and the other end of each conductive part being electrically connected to the power supply component 320 and the sensor connector 330, respectively. This allows the power supply component 320 and the sensor connector 330 to be independently electrically connected to the circuit board 310, preventing mutual interference between them and ensuring the stability and reliability of their independent connections to the circuit board 310.

[0080] Of course, in other embodiments, to further simplify the structure of the volume corrector of this application, the sensor connector 330 and the power supply 320 can also be electrically connected to the circuit board 310 via wireless connection. Correspondingly, the first housing 120 does not need to have a connecting hole 123, thereby simplifying the structure of the first housing 120 and making the separation between the first cavity 121 and the second cavity 131 more effective.

[0081] In some implementations, reference Figure 6 and Figure 9 As shown, in order to fix the power supply component 320 within the first cavity 121 of the first housing 120, the power supply component 320 may include a battery 321 and a battery compartment 322. The battery compartment 322 may have a battery cavity 323, and the battery 321 may be embedded within the battery cavity 323, thereby fixing the battery 321 to the battery compartment 322. The battery 321 can be connected to the circuit board 310 via a conductive element, enabling the battery 321 to supply power to the circuit board 310. The battery compartment 322 can be fixedly connected to the first housing 120, allowing the battery 321 to also be fixed to the first housing 120. This eliminates the need for a structure on the battery 321 for fixed connection to the first housing 120, simplifying the battery 321's structure and allowing the use of a common battery 321, thus reducing the cost of the volume corrector of this application.

[0082] The battery 321 can be fixed to the battery cavity 323 of the battery compartment 322 by a snap-fit ​​mechanism, making it easy to install and remove the battery 321 from the battery cavity 323. Specifically, the battery compartment 322 can be made of an elastic structural component, such as a polymer material, allowing it to deform and return to its original shape after deformation. This allows the battery 321 to be snapped into the battery cavity 323 of the battery compartment 322 by compression, or to be removed from the battery cavity 323. Consequently, when the battery 321 is depleted, it can be replaced individually without replacing the battery compartment 322, thus reducing the maintenance cost of the volume corrector of this application.

[0083] Of course, the battery cavity 323 of the battery compartment shell 322 can also be set to face the inner wall of the first cavity 121. In this way, when the battery compartment shell 322 is fixed to the first shell part 120, the battery 321 can be sandwiched between the inner wall of the first cavity 121 and the battery compartment shell 322, thus fixing the battery 321 in the battery cavity 323 of the battery compartment shell 322.

[0084] In some implementations, reference Figure 9 As shown, in order to fix the battery compartment housing 322 to the first housing portion 120, the battery compartment housing 322 of this application can be fixed to the first housing portion 120 by means of a threaded connection. Specifically, the battery compartment housing 322 and the first housing portion 120 can have corresponding openings, and the openings in the first housing portion 120 are threaded holes. By screwing the connector 210 into the corresponding openings in the battery compartment housing 322 and the first housing portion 120, the battery compartment housing 322 and the first housing portion 120 can be detachably fixed, and the connector 210 is a bolt.

[0085] In some implementations, reference Figure 9 As shown, in order to ensure that the cover plate 200 can fully block the first take-up and take-down port 122 when it is set at the first take-up and take-down port 122, the volume correction instrument of this application may also be provided with a second sealing ring 140. The second sealing ring 140 may be set between the cover plate 200 and the box body 100 to seal the connection between the cover plate 200 and the box body 100.

[0086] In some implementations, reference Figure 7 and Figure 9 As shown, the volume corrector of this application may also include a lead seal 150, which is connected to the first housing 120 and the second housing 130. When the first housing 120 and the second housing 130 are disassembled, the lead seal 150 will be destroyed accordingly. That is, when the lead seal 150 is not destroyed, it indicates that the first housing 120 and the second housing 130 have not been disassembled, and correspondingly, the circuit board 310 is not exposed.

[0087] Based on the volume corrector described above, this application also proposes a flow meter, including a flow meter body 500 and the volume corrector described above. The flow meter body 500 is the main component of the flow meter, and it can be connected to a fluid pipeline. The sensor in the flow meter body 500 can collect the flow rate of the fluid in the pipeline. The sensor inside the flow meter body 500 can be electrically connected to the sensor connector 330 of the volume corrector via a wire. The flow meter body 500 is also connected to a bracket 400, thus fixing the flow meter body 500 to the housing 100.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A volume correction instrument, characterized in that, include: The box body (100) has an inner cavity (110); The main body (300) of the corrector is disposed in the inner cavity (110); The bracket (400) is at least partially rotatably connected to the outer wall of the housing (100), and the bracket (400) is located outside the inner cavity (110).

2. The volume correction instrument according to claim 1, characterized in that, The bracket (400) includes a fixed part (420) and a movable part (410). The movable part (410) is connected to the box body (100), and the movable part (410) is rotatably connected to the fixed part (420).

3. The volume corrector according to claim 2, characterized in that, The fixed part (420) is movably sleeved on the movable part (410) so that the movable part (410) can rotate relative to the fixed part (420) in the circumferential direction of the movable part (410).

4. The volume corrector according to claim 3, characterized in that, Along a first direction, one end of the fixed part (420) abuts against the box body (100), and the first direction is the axial direction of the movable part (410).

5. The volume correction device according to claim 4, characterized in that, The movable part (410) limits the fixed part (420) in a second direction, which is opposite to the first direction.

6. The volume corrector according to claim 5, characterized in that, The movable part (410) has a limiting protrusion (411), and the fixed part (420) is provided with a limiting step surface (421). The limiting step surface (421) is oriented in the second direction, and the limiting protrusion (411) abuts against the limiting step surface (421).

7. The volume corrector according to claim 2, characterized in that, The volume corrector also includes a fastener (430), which passes through the movable part (410) and connects to the housing (100).

8. The volume corrector according to claim 7, characterized in that, The fastener (430) is threadedly connected to the housing (100).

9. The volume corrector according to any one of claims 2-8, characterized in that, The fixing part (420) has a fixing hole (422), which passes through the fixing part (420) along the axial direction of the movable part (410).

10. A flow meter, characterized in that, The device includes a flow meter body (500) and a volume corrector as described in any one of claims 1-9, wherein the bracket (400) is connected to the flow meter body (500).

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