Water meter

Abstract

The water meter comprises an installation assembly, a detection assembly and a sealing assembly, the installation assembly is suitable for being connected with a water pipe, the installation assembly is provided with a first installation cavity with a first opening in one side and a second installation cavity with a second opening in one side, and the first installation cavity and the second installation cavity are communicated with each other; the detection assembly comprises a detection part and a storage part which are electrically connected, the detection part is arranged in the first mounting cavity in a sliding mode and is suitable for detecting the water flow in the water pipe, and the storage part is arranged in the second mounting cavity in a sliding mode and is suitable for storing water flow information; the sealing assembly is suitable for covering the first opening and the second opening to be detachably connected with the mounting assembly so as to seal or open the first mounting cavity and the second mounting cavity. According to the water meter with the structure, the detection piece and the storage piece can be replaced, so that data of an enterprise cannot be leaked to a manufacturer.

Description

Technical Field

[0001] This utility model relates to the field of water meter technology, and specifically to a water meter. Background Technology

[0002] A water meter is an instrument for measuring water flow, mostly measuring the cumulative flow of water. It is generally divided into two categories: volumetric water meters and velocity water meters. Originating in Britain, water meters have a history of nearly two hundred years. When selecting a water meter specification, you should first estimate the size and range of the flow used under normal circumstances, and then choose the water meter specification whose commonly used flow is closest to that value as the first choice.

[0003] In the existing technology, the water flow data measured by the water meter needs to be stored so that staff can compare the water flow over a period of time to determine whether the water flow is in a normal state. Storing the water flow data requires the use of a SIM card. The SIM card can store the water flow data measured by the water meter and display the water flow information on the computer screen through an electrical connection, so that staff can view and compare it.

[0004] However, in existing water meters, the SIM card is fixed on the circuit board on the water meter during production and cannot be removed. For confidentiality reasons, some companies need to replace the SIM card that comes with the water meter to ensure that the company's data is not leaked. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the defect that the SIM card on the existing water meter cannot be removed and replaced, which cannot meet the data confidentiality needs of some enterprises.

[0006] Therefore, this utility model provides a water meter, comprising:

[0007] An installation assembly adapted to be connected to a water pipe, the installation assembly having a first installation cavity with a first opening on one side and a second installation cavity with a second opening on one side, the first installation cavity and the second installation cavity being interconnected;

[0008] The detection assembly includes an electrically connected detection element and a storage element. The detection element is disposed in a first mounting cavity and is adapted to detect the water flow rate in the water pipe. The storage element is slidably disposed in a second mounting cavity and is adapted to store water flow rate information.

[0009] A sealing component, adapted to cover the first opening and the second opening, is detachably connected to the mounting component to close or open the first mounting cavity and the second mounting cavity.

[0010] Optionally, in the above-mentioned water meter, the installation assembly includes a connector and an installation component that are connected to each other. The connector is provided with a connecting portion, which is adapted to be connected to the water pipe. The installation component has a first installation cavity and a second installation cavity.

[0011] Optionally, in the above-described water meter, the mounting assembly further includes a receiving member having a second opening and a second mounting cavity, and the receiving member is disposed within the first mounting cavity and connected to the side wall of the mounting member, so that the mounting member simultaneously has the first mounting cavity and the second mounting cavity.

[0012] Optionally, in the above-mentioned water meter, the receiving part has a connecting portion that connects the first mounting cavity and the second mounting cavity, so that the cable for power supply connection between the detection element and the storage element passes through.

[0013] Optionally, in the water meter described above, the inner wall of the mounting component is provided with a corresponding first sliding part and a second sliding part. The first sliding part is provided on the inner wall of one side of the mounting component, and the second sliding part is provided corresponding to the receiving component. The two ends of the detection component are respectively adapted to connect with the first sliding part and the second sliding part.

[0014] Optionally, in the above-described water meter, the first opening and the second opening are located on the same side, so that under the action of external force, the sealing component is adapted to simultaneously close or open the first mounting cavity and the second mounting cavity.

[0015] Optionally, in the above-mentioned water meter, the sealing component includes a first sealing member. Under the action of external force, the first sealing member is adapted to cover the first opening and the second opening and is detachably connected to the mounting member to simultaneously close or open the first mounting cavity and the second mounting cavity.

[0016] Optionally, in the above-mentioned water meter, the first closure is provided with a clearance portion relative to the second opening;

[0017] The enclosure assembly further includes a second enclosure member, which, under the action of an external force, is adapted to cover the clearance portion and is detachably connected to the first enclosure member and the receiving member to close or open the second mounting cavity.

[0018] Optionally, in the above-mentioned water meter, the first sealing member is provided with a plurality of first engaging parts, and the second sealing member is provided with a plurality of second engaging parts. Under the action of external force, the second engaging parts are adapted to engage with the first engaging parts to detachably connect the second sealing member and the first sealing member.

[0019] Optionally, in the above-mentioned water meter, the second closure is provided with a plurality of clearance portions, and all the clearance portions are spaced apart;

[0020] It also includes a plurality of seals, any one of which is disposed within a relief portion, so that when the second closure is connected to the receiving member, all the seals together seal the gap between the outer peripheral wall of the second closure and the inner wall of the second mounting cavity.

[0021] The technical solution provided by this utility model has the following advantages:

[0022] 1. The water meter provided by this utility model includes a detection component disposed within an installation assembly and a sealing component disposed on the installation assembly. The installation assembly can be connected to a water pipe under external force and has a first installation cavity and a second installation cavity. The first installation cavity has a first opening, and the second installation cavity has a second opening, both located on the same side of the installation assembly. The detection component specifically includes a detection element and a storage element, which are electrically connected. The detection element is slidably disposed within the first installation cavity, and the storage element is slidably disposed within the second installation cavity. Therefore, when it is necessary to disassemble the detection element and the storage element, they can be removed from the first and second installation cavities respectively by external force for replacement. Furthermore, the detection element can detect connections to the installation assembly. The water flow rate inside the water pipe is stored by a storage component that stores the water flow rate information detected by the detection component. This allows staff to review the water flow rate over a period of time to determine if it has been within a normal range. A sealing component, under external force, covers the first and second openings and is detachably connected to the mounting component. This allows staff to install the detection and storage components onto the mounting component when the sealing component is detached. Furthermore, when the sealing component is closed, it isolates the detection component from the outside environment, preventing damage. In summary, by slidably placing the detection and storage components within the first and second mounting cavities, companies with confidentiality requirements can replace the detection and storage components to ensure their data is not leaked to the manufacturer. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the installation structure of the water meter provided in an embodiment of this utility model;

[0025] Figure 2 This is a front view structural diagram of the water meter provided in an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the water meter provided in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the installation structure of the storage device provided in an embodiment of the present utility model;

[0028] Figure 5 This is a cross-sectional schematic diagram of the water meter provided in an embodiment of this utility model;

[0029] Figure 6 This is an exploded schematic diagram of a water meter provided in an embodiment of this utility model;

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Mounting component; 11-Connector; 111-Connecting part; 12-Mounting component; 13-Receiving part; 131-Communicating part;

[0032] 2-Detection component; 21-Detection piece; 22-Storage piece;

[0033] 3-Enclosure assembly; 31-First closure member; 311-First engaging part; 312-Avoidance part; 32-Second closure member; 321-Second engaging part;

[0034] 4-Seal; 5-Water pipe. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0039] Example

[0040] This embodiment provides a water meter, such as Figures 1 to 6 As shown, the assembly includes an installation component 1, a detection component 2, and a sealing component 3. The installation component 1 is adapted to connect to a water pipe 5 and has a first installation cavity with a first opening on one side and a second installation cavity with a second opening on one side, which are interconnected. The detection component 2 includes a detection element 21 and a storage element 22 that are electrically connected. The detection element 21 is disposed in the first installation cavity and is adapted to detect the water flow rate in the water pipe 5. The storage element 22 is slidably disposed in the second installation cavity and is adapted to store water flow rate information. The sealing component 3 is adapted to cover the first and second openings and is detachably connected to the installation component 1 to close or open the first and second installation cavities.

[0041] The water meter with the above structure includes a detection component 2 installed within the mounting assembly 1 and a sealing component 3 installed on the mounting assembly 1. The mounting assembly 1 can be connected to the water pipe 5 under external force and has a first mounting cavity and a second mounting cavity. The first mounting cavity has a first opening, and the second mounting cavity has a second opening, both located on the same side of the mounting assembly 1. The detection component 2 specifically includes a detection element 21 and a storage element 22. In this embodiment, the detection element 21 is a detection circuit board, and the storage element 22 is a SIM card. The detection element 21 and the storage element 22 are electrically connected. The detection component 21 is disposed in the first mounting cavity, and the storage component 22 is slidably disposed in the second mounting cavity. Thus, when it is necessary to disassemble the detection component 21 and the storage component 22, they can be removed from the first mounting cavity and the second mounting cavity respectively by external force and replaced. In addition, the detection component 21 can detect the water flow rate in the water pipe 5 connected to the mounting assembly 1, and the storage component 22 can store the water flow rate information detected by the detection component 21, so that the staff can check the water flow rate in the water pipe 5 over a period of time to determine whether the water flow rate in the water pipe 5 has been normal over a period of time.

[0042] In addition, the sealing component 3 can cover the first and second openings and be detachably connected to the mounting component 1 under external force. Thus, when the sealing component 3 is in the detached state, the operator can install the detection component 21 and the storage component 22 on the mounting component 1. When the sealing component 3 is in the closed state, it can isolate the detection component 2 from the outside world, thereby preventing damage to the detection component 2. In summary, by slidably setting the detection component 21 and the storage component 22 in the first and second mounting cavities, some companies with confidentiality requirements can replace the detection component 21 and the storage component 22 to ensure that the company's data is not leaked to the manufacturer.

[0043] The water meter provided in this embodiment, such as Figures 1 to 4 As shown, the installation assembly 1 includes a connector 11 and an installation component 12 that are connected to each other. The connector 11 is provided with a connecting part 111, which is adapted to be connected to the water pipe 5. The installation component 12 has a first installation cavity and a second installation cavity.

[0044] The water meter with the above structure includes a connecting member 11 and a mounting member 12 in the installation assembly 1. In this embodiment, the connecting member 11 is a connecting pipe, and the mounting member 12 is a mounting housing. The connecting member 11 and the mounting member 12 are interconnected, and the connecting member 11 is provided with a connecting part 111, which is a connecting threaded hole in this embodiment. The mounting member 12 has a first mounting cavity and a second mounting cavity, that is, the detection member 21 and the storage member 22 are both installed on the mounting member 12. Thus, when connecting the installation assembly 1 and the water pipe 5, the connecting part 111 on the connecting member 11 can be connected to the water pipe 5 by external force, so that the detection member 2 installed in the mounting member 12 can detect the water flow rate of the water pipe 5 and store the water flow rate information.

[0045] The water meter provided in this embodiment, such as Figures 1 to 3 As shown, the mounting assembly 1 also includes a receiving member 13, which has a second opening and a second mounting cavity. The receiving member 13 is disposed in the first mounting cavity and connected to the side wall of the mounting member 12, so that the mounting member 12 simultaneously has the first mounting cavity and the second mounting cavity.

[0046] The water meter with the above structure also includes a receiving member 13 by setting the installation component 1. In this embodiment, the receiving member 13 is a receiving shell. The receiving member 13 is specifically disposed in the first installation cavity and is connected to the side wall of the installation member 12, thereby fixing it in the first installation cavity. In addition, the second installation cavity and the second opening are opened on the receiving member 13, so that when the receiving member 13 is installed in the first installation cavity, the installation member 12 can simultaneously have the first installation cavity and the second installation cavity.

[0047] The water meter provided in this embodiment, such as Figures 1 to 3 As shown, the receiving member 13 has a connecting part 131, which connects the first mounting cavity and the second mounting cavity, through which the cable for power supply connection between the detection member 21 and the storage member 22 passes.

[0048] The water meter with the above structure, through the connecting part 131 opened on the receiving member 13 (in this embodiment, the connecting part 131 is a connecting hole), allows the first and second mounting cavities to be connected through the connecting part 131 when the receiving member 13 is installed in the first mounting cavity. The connecting part 131 is specifically opened on the side wall of the receiving member opposite to the detection member 21, thereby enabling the detection member 21 and the storage member 22, which are respectively installed in the first and second mounting cavities, to be electrically connected by a cable. The cable can pass through the connecting part 131 under the action of external force, thus electrically connecting the detection member 21 and the storage member 22, so that the storage member 22 can store the water flow information detected by the detection member 21.

[0049] The water meter provided in this embodiment, such as Figure 3As shown, the inner wall of the mounting component 12 is provided with corresponding first sliding part and second sliding part. The first sliding part is provided on the inner wall of one side of the mounting component 12, and the second sliding part is provided corresponding to the receiving component 13. The two ends of the detection component 21 are respectively adapted to connect with the first sliding part and the second sliding part.

[0050] The water meter with the above structure has a first sliding part and a second sliding part set on the inner side wall of the mounting part 12. In this embodiment, the first sliding part and the second sliding part are respectively the first sliding groove and the second sliding groove. The first sliding part and the second sliding part are arranged correspondingly to each other. When the detection element 21 is installed in the first mounting cavity, both ends of the detection element 21 can be connected to the first sliding part and the second sliding part respectively. Under the action of external force, the detection element 21 slides into the first mounting cavity between the first sliding part and the second sliding part. In this way, the installation of the detection element 21 can be completed.

[0051] Specifically, the first sliding part is disposed on the inner sidewall of the mounting member 12, and the second sliding part is disposed correspondingly to the receiving member 13. In this way, when the detection member 21 is installed in the first mounting cavity through the first sliding part and the second sliding part, the cable that electrically connects the storage member 22 and the detection member 21 can be electrically connected to the storage member 22 and the detection member 21 through the connecting part, which helps to reduce the use of cables. In addition, when the detection member 21 is installed in the first mounting cavity, a space will be left between the detection member 21, the mounting member 12 and the receiving member 13. This space can be used to install components such as antennas, which helps to improve the space utilization of the cavity.

[0052] The water meter provided in this embodiment, such as Figure 3 As shown, the first opening and the second opening are located on the same side, so that under the action of external force, the sealing component 3 is adapted to simultaneously close or open the first mounting cavity and the second mounting cavity.

[0053] The water meter with the above structure, by setting the first opening and the second opening to be on the same side, allows the sealing component 3 to simultaneously close or open the first installation cavity and the second installation cavity when connecting the sealing component 3 and the installation component 1. This avoids the need to sequentially open or close the first installation cavity and the second installation cavity, which would make the steps cumbersome and result in low installation efficiency.

[0054] The water meter provided in this embodiment, such as Figure 2 and Figure 4 As shown, the sealing component 3 includes a first sealing member 31. Under the action of external force, the first sealing member 31 is adapted to cover the first opening and the second opening and is detachably connected to the mounting member 12 to simultaneously close or open the first mounting cavity and the second mounting cavity.

[0055] The water meter with the above structure includes a first sealing member 31 by setting a sealing component 3. In this embodiment, the first sealing member 31 is a first sealing plate. The first sealing member 31 can be detachably connected to the mounting member 12 under the action of external force, so that the first sealing member 31 can simultaneously close or open the first opening of the mounting member 12 and the second opening of the receiving member 13.

[0056] The water meter provided in this embodiment, such as Figures 2 to 6 As shown, a clearance portion 312 is provided on the first closure member 31 at a position opposite to the second opening; the closure assembly 3 also includes a second closure member 32. Under the action of external force, the second closure member 32 is adapted to cover the clearance portion 312 and is detachably connected to the first closure member 31 and the receiving member 13 to close or open the second mounting cavity.

[0057] The water meter with the above structure also includes a second sealing member 32 through the avoidance part 312 opened on the first sealing member 31 and the sealing component 3. In this embodiment, the avoidance part 312 is an avoidance hole opened on the first sealing member 31, and the second sealing member 32 is a second sealing plate. The avoidance part 312 is opened on the first sealing member 31 corresponding to the second opening, so that when the first sealing member 31 covers the first opening, the second opening can communicate with the outside, so that the detection member 21 and the storage member 22 can be installed and disassembled respectively. The second sealing member 32 can cover the second opening and is detachably connected to the first sealing member 31, so that the second sealing member 32 can close or open the second installation cavity.

[0058] The water meter provided in this embodiment, such as Figure 2 and Figure 6 As shown, the first closure 31 is provided with a plurality of first engaging portions 311, and the second closure 32 is provided with a plurality of second engaging portions 321. Under the action of external force, the second engaging portions 321 are adapted to engage with the first engaging portions 311 to detachably connect the second closure 32 and the first closure 31.

[0059] The water meter with the above structure has several first engaging portions 311 provided on the first sealing member 31 and several second engaging portions 321 provided on the second sealing member 32. In this embodiment, the first engaging portions 311 are first engaging blocks and the second engaging portions 321 are second engaging blocks. There is a certain gap between the first engaging portions 311 and the first sealing member 31. So when connecting the first sealing member 31 and the second sealing member 32, the second sealing member 32 can rotate under the action of external force to screw the second engaging portions 321 into the gap between the first engaging portions 311 and the second sealing member 32, thereby connecting the first sealing member 31 and the second sealing member 32. When disassembling the second sealing member 32, it is only necessary to rotate the second sealing member 32 in the opposite direction to disengage the second engaging portions 321 from the gap, thereby removing the second sealing member 32 from the first sealing member 31.

[0060] The water meter provided in this embodiment, such as Figure 5 As shown, the second sealing member 32 has a plurality of clearance portions, which are spaced apart from each other; it also includes a plurality of sealing members 4, each of which is disposed in a clearance portion, so that when the second sealing member 32 is connected to the receiving member 13, all the sealing members 4 together seal the gap between the outer peripheral wall surface of the second sealing member 32 and the inner wall surface of the second mounting cavity.

[0061] The water meter with the above structure, through several clearance portions formed on the second sealing member 32 and the sealing member 4 disposed in the clearance portions, wherein the clearance portion is a clearance groove in this embodiment and the sealing member 4 is a sealing ring in this embodiment, so that when installing the second sealing member 32, the sealing member 4 can be installed in the clearance portion under the action of external force. Then, after the second sealing member 32 is connected to the first sealing member 31, the second sealing member 32 and the inner wall surface of the receiving member 13 can be sealed by the sealing member 4, so as to ensure that the external medium will not flow into the second installation cavity through the gap between the second sealing member 32 and the inner wall surface of the receiving member 13, thereby ensuring the service life of the storage member 22.

[0062] The water meter provided by this utility model includes a detection component 2 installed within an installation assembly 1 and a sealing component 3 installed on the installation assembly 1. The installation assembly 1 can be connected to a water pipe 5 under external force and has a first installation cavity and a second installation cavity. The first installation cavity has a first opening, and the second installation cavity has a second opening, both located on the same side of the installation assembly 1. The detection component 2 specifically includes a detection element 21 and a storage element 22, which are electrically connected. The detection element 21 is slidably disposed within the first installation cavity, and the storage element 22 is slidably disposed within the second installation cavity. Therefore, when it is necessary to disassemble the detection element 21 and the storage element 22, they can be removed from the first and second installation cavities respectively by external force for replacement. Furthermore, the detection element 21 can detect the connection with the installation assembly 1. The water flow rate in the water pipe 5 is stored in the storage component 22, which stores the water flow rate information detected by the detection component 21. This allows staff to check the water flow rate in the water pipe 5 over a period of time to determine if the water flow rate in the water pipe 5 has been normal. The sealing component 3 can cover the first and second openings under external force and is detachably connected to the mounting component 1. Thus, when the sealing component 3 is in the detached state, staff can install the detection component 21 and the storage component 22 on the mounting component 1. When the sealing component 3 is in the closed state, it can isolate the detection component 2 from the outside world, thereby preventing damage to the detection component 2. In summary, by slidably setting the detection component 21 and the storage component 22 in the first and second mounting cavities, companies with confidentiality requirements can replace the detection component 21 and the storage component 22 to ensure that their information is not leaked to the manufacturer.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A water meter, characterized in that, include: Mounting assembly (1) adapted to be connected to water pipe (5), the mounting assembly (1) having a first mounting cavity with a first opening on one side and a second mounting cavity with a second opening on one side, the first mounting cavity and the second mounting cavity being interconnected; The detection component (2) includes a detection element (21) and a storage element (22) that are electrically connected. The detection element (21) is disposed in the first mounting cavity and is adapted to detect the water flow rate in the water pipe (5). The storage element (22) is slidably disposed in the second mounting cavity and is adapted to store water flow rate information. A closing component (3), adapted to cover the first opening and the second opening, is detachably connected to the mounting component (1) to close or open the first mounting cavity and the second mounting cavity.

2. The water meter according to claim 1, characterized in that, The installation assembly (1) includes a connector (11) and an installation component (12) that are connected to each other. The connector (11) is provided with a connecting part (111) which is adapted to be connected to the water pipe (5). The installation component (12) has a first installation cavity and a second installation cavity.

3. The water meter according to claim 2, characterized in that, The mounting assembly (1) further includes a receiving member (13) having a second opening and a second mounting cavity. The receiving member (13) is disposed within the first mounting cavity and connected to the side wall of the mounting member (12) so that the mounting member (12) simultaneously has the first mounting cavity and the second mounting cavity.

4. The water meter according to claim 3, characterized in that, The receiving member (13) has a connecting part (131) that connects the first mounting cavity and the second mounting cavity, through which the cable for power supply connection between the detection member (21) and the storage member (22) passes.

5. The water meter according to claim 4, characterized in that, The inner wall of the mounting component (12) is provided with a corresponding first sliding part and a second sliding part. The first sliding part is provided on the inner wall of one side of the mounting component (12), and the second sliding part is provided corresponding to the receiving component (13). The two ends of the detection component (21) are respectively adapted to connect with the first sliding part and the second sliding part.

6. The water meter according to any one of claims 3-5, characterized in that, The first opening and the second opening are located on the same side, so that under the action of external force, the sealing component (3) is adapted to simultaneously close or open the first mounting cavity and the second mounting cavity.

7. The water meter according to claim 6, characterized in that, The sealing component (3) includes a first sealing member (31). Under the action of external force, the first sealing member (31) is adapted to cover the first opening and the second opening and is detachably connected to the mounting member (12) to simultaneously close or open the first mounting cavity and the second mounting cavity.

8. The water meter according to claim 7, characterized in that, The first closure (31) has a clearance part (312) at a position opposite to the second opening; The enclosure component (3) further includes a second enclosure (32), which, under the action of external force, is adapted to cover the avoidance part (312) and is detachably connected to the first enclosure (31) and the receiving part (13) to close or open the second mounting cavity.

9. The water meter according to claim 8, characterized in that, The first closure member (31) is provided with a plurality of first engaging portions (311), and the second closure member (32) is provided with a plurality of second engaging portions (321). Under the action of external force, the second engaging portions (321) are adapted to engage with the first engaging portions (311) to detachably connect the second closure member (32) and the first closure member (31).

10. The water meter according to claim 9, characterized in that, The second closure member (32) has a plurality of clearance portions, and all the clearance portions are spaced apart; It also includes a plurality of seals (4), any one of which is disposed in a recess so that when the second closure (32) is connected to the receiving member (13), all of the seals (4) together seal the gap between the outer peripheral wall of the second closure (32) and the inner wall of the second mounting cavity.

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