Water meter

Abstract

The utility model discloses a water meter, which belongs to the technical field of water meter monitoring and comprises a main shell, a sealing structure, a monitoring component and a supporting component, the sealing structure is mounted on the main shell, and a first chamber and a second chamber are arranged in the sealing structure; the monitoring assembly comprises a camera, a battery and a circuit board, the camera is electrically connected with the first end of the circuit board, and the second end of the circuit board is electrically connected with the battery; the battery and the circuit board are both installed in the first cavity, the supporting assembly is installed at the top of the sealing structure, and the camera is installed on the supporting assembly; the camera is obliquely arranged, the shooting direction of the camera faces the second cavity, and a first included angle is formed between the shooting direction of the camera and the horizontal direction. The camera is obliquely arranged and is arranged above the edge of the second cavity, so that the shooting direction of the camera basically covers the counting dial plate, the camera is prevented from shielding the monitoring sight of the intelligent meter reader, and the intelligent meter reader can normally read data of the counting dial plate.

Description

Technical Field

[0001] The utility model relates to the technical field of water meter monitoring and surveillance, in particular to a water meter. Background Art

[0002] With the popularization of intelligent life, water meter reading has also developed from manual meter reading to remote automatic meter reading. The existing remote automatic meter reading function is achieved by installing a camera on the water meter. The camera is installed inside the water meter. However, in some water plants, after the water meter is installed, an additional smart meter reader needs to be installed above the water meter.

[0003] Since the smart meter reader and the camera are both arranged above the counting dial, the smart meter reader is easily blocked by the camera, resulting in the smart meter reader being unable to read the numbers on the counting dial normally. Summary of the Invention

[0004] The utility model aims to improve the problem in existing water meters that an intelligent meter reader is easily blocked by a camera, resulting in the intelligent meter reader being unable to normally read the numbers on the counting dial, and provides a water meter.

[0005] The technical solutions to achieve the above objectives include the following:

[0006] Water meter, including:

[0007] A main housing, a sealing structure, a monitoring assembly, and a support assembly. The sealing structure is mounted on the main housing and has a first chamber and a second chamber therein. The monitoring assembly includes a camera, a battery, and a circuit board. The camera is electrically connected to a first end of the circuit board, and a second end of the circuit board is electrically connected to the battery.

[0008] The battery and circuit board are both installed in the first chamber, the support assembly is installed on the top of the sealing structure, and the camera is installed on the support assembly; wherein, the camera is arranged at an angle, the shooting direction of the camera is toward the second chamber, and a first angle is formed between the shooting direction of the camera and the horizontal direction.

[0009] In one embodiment, the support assembly includes a first limit seat and a second limit seat, the first limit seat and the second limit seat are both installed on the top wall of the sealing structure, and the first limit seat and the second limit seat are arranged opposite to each other, and the two sides of the camera are respectively installed on the first limit seat and the second limit seat, and are against the inner walls of the first limit seat and the second limit seat.

[0010] In one embodiment, the support assembly further includes a limit block, the first limit seat includes a first limit groove, the second limit seat includes a second limit groove, a mounting position is formed between the first limit seat and the second limit seat, the camera is disposed in the mounting position, and two sides of the camera are slidably engaged with the first limit groove and the second limit groove, and the front end of the camera abuts against the limit block;

[0011] The first limiting groove and the second limiting groove are both inclined, and a second angle is formed between the first limiting groove and the second limiting groove and the horizontal direction.

[0012] In one embodiment, the support assembly further has two third limit seats, which are installed on the top wall of the sealing structure and arranged in the first chamber, and the two third limit seats are arranged opposite to each other; the third limit seat has a third limit groove, and the two sides of the circuit board are respectively engaged with the third limit grooves of the two third limit seats.

[0013] In one embodiment, the sealing structure includes an outer shell, a support seat, and a base, wherein the support seat is sleeved on the outside of the base, and the support seat and the base are sealed together; the outer shell is sleeved on the outside of the support seat, and the outer shell and the support seat are sealed together; a sealed first chamber is formed between the support seat and the outer shell, and a sealed second chamber is formed between the base and the outer shell.

[0014] In one embodiment, the sealing structure further has a pin, the outer shell has a first pin hole, the support seat has a second pin hole corresponding to the first pin hole, the first end of the pin is arranged in the first pin hole, the second end of the pin is arranged in the second pin hole, and the outer diameter of the pin is smaller than the inner diameter of the first pin hole.

[0015] In one embodiment, the first pin hole passes through from one side of the shell to the other side of the shell, the inner diameter of the first pin hole is larger than the inner diameter of the second pin hole, and the second end of the pin is interference fit with the second pin hole.

[0016] In one embodiment, the sealing structure further has a first sealing ring, the outer wall of the base has a first groove, the first groove is extended along the circumference of the base, the first sealing ring is at least partially installed in the first groove, and the outer wall of the first sealing ring is respectively against the outer wall of the base and the inner wall of the support seat.

[0017] In one embodiment, the sealing structure further has a second sealing ring, the outer wall of the support seat has a second groove, the second groove is extended along the circumference of the support seat, the second sealing ring is at least partially installed in the second groove, and the outer wall of the second sealing ring is respectively against the outer wall of the support seat and the inner wall of the outer shell.

[0018] In one embodiment, the water meter further comprises an upper cover, the base comprises a first connecting portion and a second connecting portion, the second connecting portion is mounted on the first connecting portion, and an outer diameter of the second connecting portion is smaller than an outer diameter of the first connecting portion;

[0019] The first connecting portion is arranged on the main shell, the first end of the upper cover is sleeved on the outside of the main shell, and the inner wall of the upper cover is threadedly engaged with the outer wall of the main shell; the second end of the upper cover is against the first connecting portion, and the first connecting portion is arranged between the second end of the upper cover and the top of the main shell.

[0020] The technical solution provided by the utility model has the following advantages and effects:

[0021] A first angle is formed between the shooting direction of the camera and the horizontal direction, so that the shooting direction of the camera is toward the second chamber. The tilted camera can be set above the edge of the second chamber. In this way, the shooting direction of the camera basically covers the counting dial, and the camera can avoid blocking the monitoring line of sight of the smart meter reader, and the smart meter reader can read the data of the counting dial normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein illustrate specific examples of the technical solutions described in the present invention, and together with the specific implementation methods constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present invention.

[0023] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.

[0024] Figure 1 It is a schematic diagram of a water meter in one embodiment of the present utility model;

[0025] Figure 2 This is an exploded view of a water meter in one embodiment of the present utility model;

[0026] Figure 3 This is a cross-sectional view of a water meter in one embodiment of the present utility model. Figure 1 ;

[0027] Figure 4 This is a cross-sectional view of a water meter in one embodiment of the present utility model. Figure 2 ;

[0028] Figure 5 This is a side view of a sealing structure in one embodiment of the present invention;

[0029] Figure 6 In one embodiment of the present utility model Figure 5 AA section view;

[0030] Figure 7 This is a schematic diagram of the installation of a support assembly in one embodiment of the present utility model;

[0031] Figure 8 It is an enlarged view of the support assembly in one embodiment of the present utility model;

[0032] Figure 9 is a cross-sectional view of a support assembly in one embodiment of the present utility model;

[0033] Figure 10 It is a schematic diagram of a support base in one embodiment of the present utility model;

[0034] Figure 11 It is a schematic diagram of a base in one embodiment of the present utility model;

[0035] Description of reference numerals:

[0036] 100. Water meter;

[0037] 1. Main housing; 11. First interface; 12. Second interface; 13. Mounting cavity;

[0038] 2. Upper cover;

[0039] 3. Sealing structure; 31. Housing; 311. First pin hole; 32. Support seat; 321. Second groove; 322. First chamber; 323. Second chamber; 324. Second pin hole; 325. Positioning groove; 326. First mounting hole; 33. Base; 331. First groove; 332. Positioning block; 333. Second mounting hole; 334. First connecting portion; 335. Second connecting portion; 34. First sealing ring; 35. Second sealing ring; 36. Pin;

[0040] 4. Movable cover; 41. Pin;

[0041] 5. Monitoring components; 51. Battery; 52. Camera; 521. Shooting direction; 53. Circuit board;

[0042] 6. Support assembly; 61. First limiting seat; 611. First limiting groove; 62. Second limiting seat; 621. Second limiting groove; 63. Limiting block; 64. Mounting position; 65. Third limiting seat. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0044] Unless otherwise specified or defined, the "first, second..." used in this article is only used to distinguish names and does not represent a specific quantity or order.

[0045] Unless stated otherwise or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] It should be noted that when an element is considered to be "fixed to" another element, it can be directly fixed to the other element or there can be an intermediate element; when an element is considered to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element; when an element is considered to be "mounted on" another element, it can be directly mounted on the other element or there can be an intermediate element. When an element is considered to be "located on" another element, it can be directly located on the other element or there can be an intermediate element.

[0047] Example 1

[0048] The utility model provides a water meter 100, such as Figures 1 to 9 As shown, it includes a main shell 1, a sealing structure 3, a monitoring component 5, and a support component 6. The sealing structure 3 is installed on the main shell 1, and the sealing structure 3 has a first chamber 322 and a second chamber 323; the monitoring component 5 includes a camera 52, a battery 51, and a circuit board 53. The camera 52 is electrically connected to the first end of the circuit board 53, and the second end of the circuit board 53 is electrically connected to the battery 51; the battery 51 and the circuit board 53 are both installed in the first chamber 322, the support component 6 is installed on the top of the sealing structure 3, and the camera 52 is installed on the support component 6; wherein, the camera 52 is arranged at an angle, and the shooting direction 521 of the camera 52 is toward the second chamber 323, and a first angle is formed between the shooting direction 521 of the camera 52 and the horizontal direction.

[0049] Specifically, the battery 51 provides power for the camera 52. The circuit board 53 includes a control circuit for activating the camera 52 to read the counter dial data upon receiving an electrical signal. The camera 52 is mounted on the support assembly 6 at an angle. Furthermore, the camera 52's shooting direction 521 forms a first angle with the horizontal, oriented toward the second chamber 323. The angled camera 52 allows the camera 52 to be positioned above the edge of the second chamber 323. This allows the camera 52's shooting direction 521 to substantially cover the counter dial, preventing the camera 52 from obstructing the intelligent meter reader's line of sight, allowing the intelligent meter reader to read the counter dial data normally. In this embodiment, the intelligent meter reader can be mounted above the second chamber 323, such as on top of the sealing structure 3.

[0050] In order to improve the convenience of assembling the camera 52. Preferably, Figure 7As shown, the support assembly 6 includes a first limiting seat 61 and a second limiting seat 62. The first limiting seat 61 and the second limiting seat 62 are both mounted on the top wall of the sealing structure 3, and the first limiting seat 61 and the second limiting seat 62 are arranged opposite each other. The two sides of the camera 52 are respectively mounted on the first limiting seat 61 and the second limiting seat 62, and abut against the inner walls of the first limiting seat 61 and the second limiting seat 62. Specifically, the first limiting seat 61 and the second limiting seat 62 are arranged on the top wall of the sealing structure 3, clamping the camera 52 between the first limiting seat 61 and the second limiting seat 62. The two sides of the camera 52 abut against the inner walls of the first limiting seat 61 and the second limiting seat 62, so that the camera 52 is mounted above the second chamber 323 and the stability of the camera 52 on the support assembly 6 is improved. During installation, the camera 52 can enter from the ends of the first limit seat 61 and the second limit seat 62 and slide between the first limit seat 61 and the second limit seat 62 to facilitate assembly of the camera 52 and the support assembly 6.

[0051] In order to further improve the stability of the camera 52 on the support assembly 6. Preferably, Figure 7 and Figure 8 As shown, the support assembly 6 also has a limit block 63, the first limit seat 61 has a first limit groove 611, the second limit seat 62 has a second limit groove 621, and a mounting position 64 is formed between the first limit seat 61 and the second limit seat 62. The camera 52 is set in the mounting position 64, and the two sides of the camera 52 slide with the first limit groove 611 and the second limit groove 621, and the front end of the camera 52 is against the limit block 63; the first limit groove 611 and the second limit groove 621 are both inclined, and a second angle is formed between the first limit groove 611 and the second limit groove 621 and the horizontal direction. Specifically, after the two sides of the camera 52 are slidably engaged with the first limiting groove 611 and the second limiting groove 621, the front end of the camera 52 abuts against the limiting block 63. The limiting block 63 can limit the position of the camera 52, making the installation of the camera 52 more precise. The first limiting groove 611 and the second limiting groove 621 can improve the stability of the camera 52 on the installation position 64. Moreover, the setting of the second angle determines the inclination angle of the first limiting groove 611 and the second limiting groove 621. When the camera 52 is on the installation position 64, the first limiting groove 611 and the second limiting groove 621 will determine the tilt direction of the camera 52. This installation method avoids the use of screws for fixing, while improving the stability of the camera 52, and allowing for quick assembly of the water meter 100.

[0052] In order to improve the stability of the circuit board 53 in the first chamber 322. In some embodiments, as Figure 7As shown, the support assembly 6 further includes two third retaining seats 65, which are mounted on the top wall of the sealing structure 3 and disposed within the first chamber 322. The two third retaining seats 65 are positioned opposite each other. The third retaining seats 65 have third retaining grooves, and the two sides of the circuit board 53 engage with the third retaining grooves of the two third retaining seats 65, respectively. Specifically, the two ends of the circuit board 53 can be retained in the two third retaining grooves. When the sealing structure 3 is assembled with the main housing 1, the circuit board 53 is located in the first chamber 322, thereby improving the stability of the circuit board 53 within the first chamber 322.

[0053] In order to facilitate the assembly of the water meter 100. Preferably, Figure 1 、 Figure 2 、 Figure 11 As shown, the water meter 100 also includes a main housing 1 and an upper cover 2. The base 33 includes a first connecting portion 334 and a second connecting portion 335. The second connecting portion 335 is mounted on the first connecting portion 334, and the outer diameter of the second connecting portion 335 is smaller than the outer diameter of the first connecting portion 334. The first connecting portion 334 is provided on the main housing 1. The first end of the upper cover 2 is sleeved on the outside of the main housing 1, and the inner wall of the upper cover 2 is threadedly engaged with the outer wall of the main housing 1. The second end of the upper cover 2 abuts against the first connecting portion 334, and the first connecting portion 334 is provided between the second end of the upper cover 2 and the top of the main housing 1. Specifically, the mounting cavity 13 of the main housing 1 is used to place the impeller assembly, which is used to cooperate with the counting dial. When water flows between the first interface 11 and the second interface 12 of the main housing 1, the water flow drives the impeller assembly to rotate, thereby driving the data of the counting dial to change. During assembly, the upper cover 2 is sleeved over the base 33, so that the second end of the upper cover 2 abuts against the first connecting portion 334. The second end of the upper cover 2 has a stopper. When the upper cover 2 and the main housing 1 are threadedly connected, the stopper of the upper cover 2 secures the first connecting portion 334 to the main housing 1. During installation, it is only necessary to abut the stopper against the first connecting portion 334, and then thread the upper cover 2 into the main housing 1. This improves the convenience of assembling the sealing structure 3 and the main housing 1.

[0054] In this embodiment, if Figure 2 As shown, the upper cover 2 and the main shell 1 are threadedly connected to achieve sealing between the upper cover 2 and the main shell 1, and the first connecting portion 334 can be opened to allow the counting dial to be set in the second chamber 323. The impeller assembly cooperates with the counting dial through the through-portion, and the through-portion can be provided with a sealing ring to keep the first chamber 322 in a sealed state.

[0055] Preferably, Figure 1 and Figure 2As shown, the water meter 100 further includes a movable cover 4 and a pin 41. The pin 41 is mounted on the housing 31 of the sealing structure 3. The movable cover 4 is rotatably mounted on the pin 41, and the movable cover 4 has a rotation path centered on the pin 41. The movable cover 4 is disposed above the housing 31, and the housing 31 is at least partially made of a transparent material. Specifically, the portion of the housing 31 above the counter dial is made of a transparent material. The movable cover 4 is disposed above the housing 31 to protect the housing 31. This prevents damage to the housing 31 from the external environment, prevents a reduction in the transparency of the housing 31, and improves the accuracy of data read by the intelligent meter reader.

[0056] Example 2

[0057] The present invention also proposes a sealing structure 3, such as Figures 1 to 6 As shown, the shell 31, the support seat 32, the base 33, and the pin 36, the support seat 32 is sleeved on the outside of the base 33 and is sealed with the base 33; the shell 31 is sleeved on the outside of the support seat 32 and is sealed with the support seat 32; the shell 31 and the support seat 32 are movably matched; a sealed first chamber 322 is formed between the support seat 32 and the shell 31, and a sealed second chamber 323 is formed between the base 33 and the shell 31; the shell 31 has a first pin hole 311, and the support seat 32 has a second pin hole 324 corresponding to the first pin hole 311, the first end of the pin 36 is arranged in the first pin hole 311, and the second end of the pin 36 is arranged in the second pin hole 324, wherein the outer diameter of the pin 36 is smaller than the inner diameter of the first pin hole 311.

[0058] Specifically, the first chamber 322 is used to install the counting dial, and the second chamber 323 is used to be installed on the monitoring component 5, and the monitoring component 5 is used to read the data of the counting dial. In this embodiment, the first chamber 322 and the second chamber 323 are in a sealed state. When the water meter 100 is placed in an environment with a large temperature difference between day and night, the water meter 100 expands and contracts, and a pressure difference is generated between the inside and outside of the water meter 100. Since the outer shell 31 and the support seat 32 are movably matched, and the outer diameter of the pin hole 36 is smaller than the inner diameter of the first pin hole 311, the outer shell 31 can move slightly on the support seat 32 under the action of the pressure difference. The pin hole 36 limits the movement distance of the outer shell 31 to avoid the movement distance between the outer shell 31 and the support seat 32 being too large to form a gap, thereby avoiding air leakage in the first chamber 322 and the second chamber 323.

[0059] Furthermore, when the outer shell 31 is sealed with the support seat 32, the outer shell 31 also has the function of moving slightly on the support seat 32; when the water meter 100 expands and contracts due to heat, the outer shell 31 can change the size of the space inside the sealing structure 3 during movement, thereby eliminating the pressure difference between the inside and outside of the sealing structure 3, avoiding deformation of the support seat 32, the outer shell 31, and the base 33, and improving the stability of the sealing structure 3 when used in the water meter 100.

[0060] Preferably, Figure 6 As shown, the first pin hole 311 extends from one side of the housing 31 to the other side of the housing 31. The inner diameter of the first pin hole 311 is larger than the inner diameter of the second pin hole 324, and the second end of the pin 36 forms an interference fit with the second pin hole 324. Specifically, the second end of the pin 36 is installed in the second pin hole 324, which improves the stability between the pin 36 and the support base 32. The inner diameter of the first pin hole 311 is larger than the inner diameter of the second pin hole 324, so that the first end of the pin 36 is located in the first pin hole 311. The housing 31 has a certain floating space in the radial direction of the pin 36. When the water meter 100 expands and contracts due to heat, the housing 31 can move up and down due to this floating space. The pin 36 limits the distance the housing 31 can move up and down, preventing the housing 31 from moving too far from the support base 32, which could cause a gap to form between the housing 31 and the support base 32. Therefore, this structure ensures the sealing performance of the sealing structure 3 while improving the stability of the sealing structure 3.

[0061] Preferably, Figure 6 、 Figure 10 、 Figure 11 As shown, the sealing structure 3 also has a first sealing ring 34. The outer wall of the base 33 has a first groove 331. The first groove 331 extends along the circumference of the base 33. The first sealing ring 34 is at least partially installed in the first groove 331. The outer wall of the first sealing ring 34 respectively abuts against the outer wall of the base 33 and the inner wall of the support seat 32. Specifically, by arranging the first sealing ring 34 in the first groove 331, a sealed connection between the support seat 32 and the base 33 can be achieved. In order to further improve the stability of the support seat 32 and the base 33, fasteners can be used to fix the base 33 to the support seat 32. When the support seat 32 and the base 33 are fixed, the sealing structure 3 avoids displacement between the support seat 32 and the base 33 when thermal expansion and contraction occur, thereby improving the stability of the sealing structure 3.

[0062] Preferably, Figure 6 、 Figure 10 、 Figure 11As shown, the sealing structure 3 also has a second sealing ring 35, the outer wall of the support seat 32 has a second groove 321 extending along the circumference of the support seat 32, and the second sealing ring 35 is at least partially installed in the second groove 321, and the outer wall of the second sealing ring 35 abuts against the outer wall of the support seat 32 and the inner wall of the shell 31. Specifically, by arranging the second sealing ring 35 in the second groove 321, the sealing connection between the shell 31 and the support seat 32 can be achieved, but since the second sealing ring 35 can be made of an elastic material, the shell 31 and the support seat 32 are flexibly connected through the second sealing ring 35; when the sealing structure 3 encounters thermal expansion and contraction, the air in the first chamber 322 and the second chamber 323 expands, the shell 31 moves upward, so that the shell 31 has a space for air flow, reduces the pressure difference caused by thermal expansion and contraction, avoids the shell 31 from being extruded and deformed by the pressure, and further improves the stability of the sealing connection between the shell 31 and the support seat 32.

[0063] Preferably, as shown in Figure 10 and Figure 11 , the number of the first grooves 331 and the second grooves 321 is multiple, the number of the first sealing rings 34 corresponds to the number of the first grooves 331, and the number of the second sealing rings 35 corresponds to the number of the second grooves 321. In this embodiment, the first grooves 331 and the second grooves 321 are used to improve the stability of the first sealing rings 34 and the second sealing rings 35, the first sealing rings 34 and the second sealing rings 35 have multiple, which can achieve the multi-stage sealing effect between the support seat 32 and the base 33, and achieve the multi-stage sealing effect between the shell 31 and the support seat 32, and further improve the sealing performance of the first chamber 322 and the second chamber 323.

[0064] In some embodiments, as shown in Figure 10 and Figure 11As shown, the top of the base 33 has a positioning block 332, and the inner wall of the support seat 32 has a positioning groove 325 that cooperates with the positioning block 332; the support seat 32 has a first mounting hole 326, and the base 33 has a second mounting hole 333 corresponding to the first mounting hole 326. The sealing structure 3 also has a fastener, and the first mounting hole 326 and the second mounting hole 333 are both used for the fastener to pass through, so that the support seat 32 is fixed to the base 33 through the fastener. Specifically, during installation, in order to make the first mounting hole 326 correspond to the second mounting hole 333 and improve the assembly efficiency between the support seat 32 and the base 33, the positioning block 332 of the base 33 is used to cooperate with the positioning groove 325 of the support seat 32. When the positioning block 332 is engaged with the positioning groove 325, the first mounting hole 326 corresponds to the second mounting hole 333; then one end of the fastener is passed through the first mounting hole 326 and the second mounting hole 333 in sequence, and the second end of the fastener is used to resist the support seat 32. The fastener can be threadedly connected to the second mounting hole 333, thereby fixing the support seat 32 and the base 33 and improving the assembly efficiency between the support seat 32 and the base 33.

[0065] When quoting drawing descriptions, new features that appear are described; in order to avoid repeated quoting of drawings which would result in a less concise description, features that have been described clearly will not be quoted from the drawings one by one.

[0066] The purpose of the above embodiments is to exemplify and deduce the technical solution of the utility model, and to fully describe the technical solution, purpose and effect of the utility model. Its purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of the utility model, and it does not limit the scope of protection of the utility model.

[0067] The above embodiments are not exhaustive of the present invention, and there may be many other embodiments not listed. Any replacements and improvements made without violating the concept of the present invention are within the scope of protection of the present invention.

Claims

1. A water meter, characterized in that include: A main housing, a sealing structure, a monitoring assembly, and a support assembly. The sealing structure is mounted on the main housing and has a first chamber and a second chamber therein. The monitoring assembly includes a camera, a battery, and a circuit board. The camera is electrically connected to a first end of the circuit board, and a second end of the circuit board is electrically connected to the battery. The battery and circuit board are both installed in the first chamber, the support assembly is installed on the top of the sealing structure, and the camera is installed on the support assembly; wherein, the camera is arranged at an angle, the shooting direction of the camera is toward the second chamber, and a first angle is formed between the shooting direction of the camera and the horizontal direction.

2. The water meter according to claim 1, wherein: The support assembly includes a first limit seat and a second limit seat. The first limit seat and the second limit seat are both installed on the top wall of the sealing structure, and the first limit seat and the second limit seat are arranged opposite to each other. The two sides of the camera are respectively installed on the first limit seat and the second limit seat, and are against the inner walls of the first limit seat and the second limit seat.

3. The water meter according to claim 2, wherein: The support assembly further includes a limit block, the first limit seat includes a first limit groove, the second limit seat includes a second limit groove, and a mounting position is formed between the first limit seat and the second limit seat. The camera is arranged in the mounting position, and two sides of the camera are slidably engaged with the first limit groove and the second limit groove, and the front end of the camera abuts against the limit block; The first limiting groove and the second limiting groove are both inclined, and a second angle is formed between the first limiting groove and the second limiting groove and the horizontal direction.

4. The water meter according to claim 2, wherein: The support assembly also has two third limit seats, which are installed on the top wall of the sealing structure and arranged in the first chamber, and the two third limit seats are arranged opposite to each other; the third limit seat has a third limit groove, and the two sides of the circuit board are respectively engaged with the third limit grooves of the two third limit seats.

5. The water meter according to claim 1, wherein: The sealing structure includes an outer shell, a support seat, and a base. The support seat is sleeved on the outside of the base, and the support seat and the base are sealed together. The outer shell is sleeved on the outside of the support seat, and the outer shell and the support seat are sealed together. The first sealed chamber is formed between the support seat and the outer shell, and the second sealed chamber is formed between the base and the outer shell.

6. The water meter according to claim 5, wherein: The sealing structure also has a pin, the outer shell has a first pin hole, the support seat has a second pin hole corresponding to the first pin hole, the first end of the pin is arranged in the first pin hole, the second end of the pin is arranged in the second pin hole, and the outer diameter of the pin is smaller than the inner diameter of the first pin hole.

7. The water meter according to claim 6, characterized in that The first pin hole passes through from one side of the shell to the other side of the shell, the inner diameter of the first pin hole is larger than the inner diameter of the second pin hole, and the second end of the pin is interference fit with the second pin hole.

8. The water meter according to claim 5, wherein: The sealing structure also has a first sealing ring, and the outer wall of the base has a first groove, which extends along the circumference of the base. The first sealing ring is at least partially installed in the first groove, and the outer wall of the first sealing ring is respectively against the outer wall of the base and the inner wall of the support seat.

9. The water meter according to claim 8, wherein: The sealing structure also has a second sealing ring, the outer wall of the support seat has a second groove, the second groove extends along the circumference of the support seat, the second sealing ring is at least partially installed in the second groove, and the outer wall of the second sealing ring is respectively against the outer wall of the support seat and the inner wall of the outer shell.

10. The water meter according to claim 5, wherein: The water meter further comprises an upper cover, the base comprises a first connecting portion and a second connecting portion, the second connecting portion is mounted on the first connecting portion, and the outer diameter of the second connecting portion is smaller than the outer diameter of the first connecting portion; The first connecting portion is arranged on the main shell, the first end of the upper cover is sleeved on the outside of the main shell, and the inner wall of the upper cover is threadedly engaged with the outer wall of the main shell; the second end of the upper cover is against the first connecting portion, and the first connecting portion is arranged between the second end of the upper cover and the top of the main shell.

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