阅读说明：本技术 一种可预备指令化维护操作的nb-iot物联网水表 (NB-IOT (network b-internet of things) water meter capable of preparing ordered maintenance operation ) 是由 王小兵 黄亚丽 朱建红 汪兴德 卢中云 于 2021-07-28 设计创作，主要内容包括：本发明涉及物联网水表技术领域,具体地说,涉及一种可预备指令化维护操作的NB-IOT物联网水表。其包括物联网水表本体,物联网水表本体至少包括：远程控制终端,远程控制终端包括水量采集单元和故障维护单元,维护设备,维护设备包括清理环,清理环外壁设有多个清理毛刷,清理环外侧设有两个对称的移动板,移动板滑动在物联网水表本体输送管内,物联网水表本体输送管内壁转动有丝杆,丝杆与移动板表面螺纹配合连接,丝杆端部连接有第一锥形齿轮,第一锥形齿轮外壁啮合有第二锥形齿轮,第二锥形齿轮端部连接有控制电机,控制电机内部设有控制模块,控制模块用于接收故障维护单元的控制信号,本发明在定时刷动附着的水垢,提高水表维护效果。(The invention relates to the technical field of water meters of the Internet of things, in particular to an NB-IOT water meter capable of preparing ordered maintenance operation. It includes thing networking water gauge body, and thing networking water gauge body includes at least: the remote control terminal comprises a water quantity acquisition unit and a fault maintenance unit, and the maintenance equipment comprises a cleaning ring, the outer wall of the cleaning ring is provided with a plurality of cleaning brushes, the outer side of the cleaning ring is provided with two symmetrical movable plates, the movable plates slide in a conveying pipe of the Internet of things water meter body, the inner wall of the conveying pipe of the Internet of things water meter body is provided with a screw rod in a rotating mode, the screw rod is in threaded fit connection with the surface of the movable plates, the end part of the screw rod is connected with a first bevel gear, the outer wall of the first bevel gear is meshed with a second bevel gear, the end part of the second bevel gear is connected with a control motor, a control module is arranged inside the control motor, and the control module is used for receiving a control signal of the fault maintenance unit.)

1. The utility model provides a can prepare NB-IOT thing networking water gauge of commander-based maintenance operation, includes thing networking water gauge body (100), its characterized in that: thing networking water gauge body (100) include at least:

the remote control system comprises a remote control terminal (110), wherein the remote control terminal (110) comprises a water quantity acquisition unit and a fault maintenance unit, the water quantity acquisition unit is used for acquiring water consumption and transmitting the water consumption to a cloud end, the fault maintenance unit is used for detecting the water flow rate at regular time and transmitting a control signal when the water flow rate is abnormal;

maintain equipment (120), maintain equipment (120) including clearance ring (121), clearance ring (121) outer wall is equidistant to be equipped with a plurality of clearance brushes (122), clearance brush (122) tip with the conveyer pipe inner wall of thing networking water gauge body (100) closely laminates, clearance ring (121) outside is equipped with two symmetrical movable plates (123), movable plate (123) slide thing networking water gauge body (100) conveyer pipe inner wall, thing networking water gauge body (100) conveyer pipe inner wall rotates has lead screw (124), lead screw (124) outer wall and one of them movable plate (123) surface thread fit connection, lead screw (124) end connection has first conical gear (1241), first conical gear (1241) outer wall meshing has second conical gear (1242) end connection has control motor (1243), and a control module is arranged in the control motor (1243) and is used for receiving a control signal of the fault maintenance unit.

2. The NB-IOT internet-of-things water meter capable of being prepared for commanded maintenance operations as recited in claim 1, further comprising: the fault maintenance unit comprises a timing control module and a preparation instruction module, wherein the timing control module is used for transmitting signals to the preparation instruction module at intervals to work, and the preparation instruction module is used for controlling the control module in the maintenance equipment to work.

3. The NB-IOT internet-of-things water meter capable of being prepared for commanded maintenance operations as recited in claim 2, further comprising: the preparation instruction module adopts a detection instruction control algorithm and comprises the following steps:

setting a normal threshold value of the water flow speed in a conveying pipe of the Internet of things water meter body (100);

detecting the water flow speed in a conveying pipe of the Internet of things water meter body (100);

and transmitting normal signals when the water flow rate is normal, and transmitting signals to a control module in the maintenance equipment (120) through wireless radio frequency when the water flow rate is abnormal.

4. The NB-IOT internet-of-things water meter of claim 3 that is ready for commanded maintenance operations, wherein: the water flow velocity detection adopts water flow power to push the rotor to rotate so as to detect the water flow velocity, and the calculation formula is as follows:

V＝bn+a

wherein V is the flow velocity, b is the hydraulic pitch, n is the rotor revolution rate, and a is a constant.

5. The NB-IOT internet-of-things water meter of claim 4 that is ready for commanded maintenance operations, wherein: the wireless radio frequency transmission signal adopts a wireless radio frequency technology.

6. The NB-IOT internet-of-things water meter capable of being prepared for commanded maintenance operations as recited in claim 1, further comprising: the movable plate (123) is close to the outer wall of tip and has seted up rotary trough (1231), the inside rotation of rotary trough (1231) is equipped with cylinder (1232), cylinder (1232) outer wall with the conveyer pipe inner wall of thing networking water gauge body (100) closely laminates.

7. The NB-IOT internet-of-things water meter capable of being prepared for commanded maintenance operations as recited in claim 1, further comprising: a plurality of spacing grooves (1210) have been seted up to clearance ring (121) surface equidistant, and it is a plurality of on the same water flat line be connected with limiting plate (1221) between clearance brush (122) bottom, limiting plate (1221) slide inside spacing groove (1210), limiting plate (1221) bottom with spacing spring (1222) of fixedly connected with between spacing groove (1210) inner chamber bottom.

8. The NB-IOT internet-of-things water meter capable of being prepared for commanded maintenance operations as recited in claim 1, further comprising: the inner wall that thing networking water gauge body (100) are close to the conveyer pipe tip is equipped with spacing frame (126), spacing frame (126) inside rotation is equipped with decompression board (1260), decompression board (1260) outer wall is equipped with sealed pad (1261).

9. The NB-IOT internet-of-things water meter capable of being prepared for commanded maintenance operations of claim 8, wherein: the cleaning ring is characterized in that a connecting plate (1211) is arranged at the center of the inside of the cleaning ring (121), a linkage spring (1212) is fixedly connected to the surface of the connecting plate (1211), the other end of the linkage spring (1212) is fixedly connected with the pressure reducing plate (1260), a positioning plate (1262) is arranged at the edge of the end part of the limiting frame (126), and the positioning plate (1262) can rotate inside the limiting frame (126) when the pressure reducing plate (1260) rotates.

10. The NB-IOT internet-of-things water meter capable of being prepared for commanded maintenance operations as recited in claim 1, further comprising: remote control terminal (110) top is equipped with display screen (111), display screen (111) top is equipped with buffering frame (112), buffering frame (112) four corners department with fixedly connected with buffer spring (1120) between display screen (111) top four corners department, buffering frame (112) surface slip is equipped with shielding plate (113).

Technical Field

The invention relates to the technical field of water meters of the Internet of things, in particular to an NB-IOT water meter capable of preparing ordered maintenance operation.

Background

The NB-IoT Internet of things water meter adopts an advanced low-power-consumption Internet of things communication technology, an intelligent meter sensor technology and a combination Internet of things cloud platform management system, has the functions of data acquisition, data communication, data storage, data processing, remote monitoring and the like, supports massive connection, has deep coverage capability and low power consumption, has the advantages of massive connection, deep coverage capability and low power consumption, is very suitable for sensing, metering, monitoring and other Internet of things applications due to the inherent advantages, is simple and convenient to install and debug, stable and reliable to read the meter, and is widely used, but the current Internet of things water meter has insufficient functionality when in use, because water is transmitted from the Internet of things water meter conveying pipe, a large amount of scale is easy to adhere to the inner wall of the conveying pipe for a long time, the cleaning is not carried out, the water flow speed is influenced, the scale increases the burden of the water meter, the water meter is easy to be damaged, the service life is not favorable, but when the inner wall of the conveying pipe of the Internet of things water meter is cleaned, the water meter is required to be disassembled, the operation is complex, the labor intensity is high, and the maintenance of the water meter is inconvenient.

Disclosure of Invention

The invention aims to provide an NB-IOT (network b-internet of things) water meter capable of preparing an ordered maintenance operation, so as to solve the problems in the background technology.

In order to achieve the above object, the present invention provides an NB-IOT internet of things water meter capable of preparing commanded maintenance operation, including an internet of things water meter body, where the internet of things water meter body at least includes:

the remote control terminal comprises a water quantity acquisition unit and a fault maintenance unit, the water quantity acquisition unit is used for acquiring water consumption and transmitting the water consumption to the cloud, the fault maintenance unit is used for detecting the water flow rate at regular time and transmitting a control signal when the water flow rate is abnormal;

maintain the equipment, maintain the equipment including the clearance ring, clearance ring outer wall equidistant is equipped with a plurality of clearance brushes, clearance brush tip with the conveyer pipe inner wall of thing networking water gauge body closely laminates, the clearance ring outside is equipped with the movable plate of two symmetries, the movable plate slides thing networking water gauge body conveyer pipe inner wall, thing networking water gauge body conveyer pipe inner wall rotates there is the lead screw, lead screw outer wall and one of them the surface screw-thread fit of movable plate is connected, lead screw end connection has first conical gear, first conical gear outer wall meshing has second conical gear end connection has control motor, the inside control module that is equipped with of control motor, control module is used for receiving the control signal of trouble maintenance unit.

When the Internet of things water meter body is used specifically, the fault maintenance unit detects the water flow speed regularly, a control signal is transmitted to the control module inside the control motor when the flow speed is abnormal, the control motor output shaft drives the second bevel gear to rotate, so that the first bevel gear is driven to rotate through meshing, the screw rod is driven to rotate inside the conveying pipe of the Internet of things water meter body, the surface of the movable plate slides along the thread of the outer wall of the screw rod, the cleaning ring is driven to slide inside the conveying pipe of the Internet of things water meter body, the end part of the cleaning brush is driven to slide along the inner wall of the conveying pipe of the Internet of things water meter body, scale attached to the outer wall of the Internet of things water meter body can be brushed, the scale can be cleaned conveniently, the water flow speed is prevented from being influenced, the maintenance effect of the Internet of things water meter body is improved, and the service life is prolonged.

As a further improvement of the technical solution, the fault maintenance unit includes a timing control module and a preparation instruction module, the timing control module is configured to transmit a signal to the preparation instruction module at intervals to operate, and the preparation instruction module is configured to control a control module in the maintenance device to operate.

As a further improvement of the technical solution, the preliminary instruction module adopts a detection instruction control algorithm, and includes the following steps:

setting a normal water flow speed threshold value in a conveying pipe of the Internet of things water meter body;

detecting the water flow speed in a conveying pipe of the Internet of things water meter body;

and transmitting a normal signal when the water flow rate is normal, and transmitting a signal to a control module in the maintenance equipment through a wireless radio frequency when the water flow rate is abnormal.

As a further improvement of the technical scheme, the water flow velocity detection adopts water flow power to push the rotor to rotate so as to detect the water flow velocity, and the calculation formula is as follows:

V＝bn+a

wherein V is the flow velocity, b is the hydraulic pitch, n is the rotor revolution rate, and a is a constant.

As a further improvement of the technical solution, the radio frequency transmission signal adopts a radio frequency technology.

As a further improvement of the technical scheme, the movable plate is close to the outer wall of the end part and is provided with a rotary groove, a rotary drum is arranged in the rotary groove in a rotating mode, and the outer wall of the rotary drum is closely attached to the inner wall of the conveying pipe of the Internet of things water meter body.

As a further improvement of the technical scheme, a plurality of limiting grooves are formed in the surface of the cleaning ring at equal intervals, a plurality of limiting plates are connected between the bottoms of the cleaning brushes on the same horizontal line, the limiting plates slide in the limiting grooves, and limiting springs are fixedly connected between the bottoms of the limiting grooves.

As a further improvement of the technical scheme, the inner wall of the Internet of things water meter body close to the end part of the conveying pipe is provided with a limiting frame, a pressure reducing plate is arranged inside the limiting frame in a rotating mode, and a sealing gasket is arranged on the outer wall of the pressure reducing plate.

As a further improvement of the technical scheme, a connecting plate is arranged in the center of the inner part of the cleaning ring, a linkage spring is fixedly connected to the surface of the connecting plate, the other end of the linkage spring is fixedly connected with the pressure reducing plate, a positioning plate is arranged at the edge of the end part of the limiting frame, and the positioning plate can rotate inside the limiting frame when the pressure reducing plate rotates.

As a further improvement of the technical scheme, the top of the remote control terminal is provided with a display screen, the top of the display screen is provided with a buffering frame, four corners of the buffering frame are fixedly connected with buffering springs between the four corners of the top of the display screen, and the surface of the buffering frame is slidably provided with a shielding plate.

Compared with the prior art, the invention has the beneficial effects that:

1. in the NB-IOT (network b of things) water meter capable of preparing ordered maintenance operation, control signals are transmitted to the control module inside the control motor when the flow rate is abnormal, the control motor output shaft drives the second bevel gear to rotate, so that the first bevel gear is driven to rotate by meshing, the screw rod is driven to rotate inside the conveying pipe of the Internet of things water meter body, the surface of the movable plate slides along the thread of the outer wall of the screw rod, the cleaning ring is driven to slide inside the conveying pipe of the Internet of things water meter body, the inner wall of the conveying pipe, attached to the outer wall of the Internet of things water meter body, of which the end part is attached to the cleaning brush, can be brushed, scales are conveniently cleaned, the water flow rate is prevented from being influenced, the maintenance effect of the Internet of things water meter body is improved, and the service life is prolonged.

2. In the NB-IOT (network of things-internet of things) water meter capable of being prepared for ordered maintenance operation, when the outer wall of the movable plate slides along the inner wall of the conveying pipe of the internet of things water meter body, the roller can be driven to rotate inside the rotary trough, so that the roller rolls along the inner wall of the internet of things water meter body, the friction resistance between the movable plate and the inner wall of the internet of things water meter body can be reduced, and the damage to the internet of things water meter body caused by serious abrasion is avoided.

3. In this can prepare instruction ization maintenance operation's NB-IOT thing networking water gauge, when clearance brush tip brushed along the conveyer pipe inner wall of thing networking water gauge body, made the limiting plate slide in limiting groove inside, spacing spring compression makes the clearance brush tip more laminate the inner wall of thing networking water gauge body conveyer pipe, improves the clearance efficiency of incrustation scale.

4. In the NB-IOT (network b of things) Internet of things water meter capable of preparing ordered maintenance operation, when water circulates from the inside of the conveying pipe of the Internet of things water meter body, the water impacts the surface of the pressure reducing plate to enable the pressure reducing plate to rotate, so that the water pressure intensity is relieved, the water pressure intensity enters the Internet of things water meter body, the water pressure is prevented from being greatly impacted and damaged, and the service life is prolonged.

5. In this can prepare instruction ization maintenance operation's NB-IOT thing networking water gauge, when the clearance ring slided in thing networking water gauge body conveyer pipe, the clearance ring was close to the pressure reducing plate, made the compression of linkage spring, drove the pressure reducing plate and rotate inside spacing frame under linkage spring reconversion elasticity effect, made the pressure reducing plate rotate to sealed inside spacing frame, can avoid rivers to get into, avoided rivers to influence the clearance brush scale of clearance ring outer wall, improved clearance effect.

Drawings

FIG. 1 is an assembly view showing the overall structure of embodiment 1 of the present invention;

FIG. 2 is an exploded view of the entire structure of embodiment 1 of the present invention;

fig. 3 is a schematic block diagram of a remote control terminal according to embodiment 1 of the present invention;

FIG. 4 is a flow chart of a prepare instruction module according to embodiment 1 of the present invention;

fig. 5 is an exploded schematic view of an internet-of-things water meter body according to embodiment 1 of the invention;

FIG. 6 is a partial schematic view of a screw rod structure according to embodiment 1 of the present invention;

FIG. 7 is a schematic view of the structure of the moving plate according to embodiment 1 of the present invention;

FIG. 8 is a schematic view of a cleaning ring structure according to embodiment 1 of the present invention;

fig. 9 is a schematic structural view of a limiting frame in embodiment 2 of the present invention;

FIG. 10 is a schematic view of a pressure reducing plate structure according to example 2 of the present invention;

fig. 11 is a schematic structural diagram of a remote control terminal according to embodiment 3 of the present invention.

The various reference numbers in the figures mean:

100. the water meter body of the Internet of things;

110. a remote control terminal; 111. a display screen; 112. a buffer frame; 1120. a buffer spring; 113. a shielding plate;

120. maintaining the equipment; 121. cleaning a ring; 1210. a limiting groove; 1211. a connecting plate; 1212. a linkage spring; 122. cleaning the brush; 1221. a limiting plate; 1222. a limiting spring; 123. moving the plate; 1231. rotating the groove; 1232. a drum; 124. a screw rod; 1241. a first bevel gear; 1242. a second bevel gear; 1243. controlling the motor; 125. positioning a rod; 126. a limiting frame; 1260. a decompression plate; 1261. a gasket; 1262. and (7) positioning the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 8, the present embodiment provides an NB-IOT internet of things water meter capable of preparing a commanded maintenance operation, including an internet of things water meter body 100, where the internet of things water meter body 100 at least includes:

the remote control terminal 110 is characterized in that the remote control terminal 110 comprises a water quantity acquisition unit and a fault maintenance unit, the water quantity acquisition unit is used for acquiring water consumption and transmitting the water consumption to the cloud, the fault maintenance unit is used for detecting the water flow rate at regular time and transmitting a control signal when the water flow rate is abnormal;

in order to improve the practicality of thing networking water gauge body 100, the trouble maintenance unit includes timing control module and preparation instruction module, timing control module is used for transmitting signal to preparation instruction module at an interval and carries out work, preparation instruction module is used for controlling the control module work in the maintenance of equipment 120, can carry out timing control through timing control module, when reaching the time, transmitting signal, control module work in the maintenance of equipment 120 is controlled by preparation instruction module, make control motor 1243 can work, thereby realize regularly maintaining, improve the practicality of thing networking water gauge body 100.

In order to improve the integrity, the preparation instruction module adopts a detection instruction control algorithm and comprises the following steps:

setting a normal threshold value of the water flow speed in a conveying pipe of the Internet of things water meter body 100;

detecting the water flow speed in a conveying pipe of the Internet of things water meter body 100;

the normal signal is transmitted when the water flow rate is normal, and the signal is transmitted to the control module in the maintenance device 120 through the wireless radio frequency when the water flow rate is abnormal.

Specifically, the water flow velocity detection adopts water flow power to push the rotor to rotate so as to detect the water flow velocity, and the calculation formula is as follows:

V＝bn+a

wherein V is the flow velocity, b is the hydraulic pitch, n is the rotor revolution rate, and a is a constant.

Specifically, the radio frequency transmission signal adopts a radio frequency technology, a radio frequency signal with a certain frequency is sent through a transmitting antenna, when an induced current is generated by a radio frequency card, the radio frequency card obtains energy and is activated, the radio frequency card sends out information such as self coding and the like through a transmitting antenna arranged in the card, a receiving antenna receives a carrier signal sent from the radio frequency card and transmits the carrier signal to a reader through an antenna regulator, the reader demodulates and decodes the received signal and then sends the demodulated and decoded signal to a control module for relevant processing, and an instruction signal is sent to control an actuating mechanism to act.

The maintenance equipment 120 comprises a cleaning ring 121, a plurality of cleaning brushes 122 are arranged on the outer wall of the cleaning ring 121 at equal intervals, the end parts of the cleaning brushes 122 are tightly attached to the inner wall of a conveying pipe of the Internet of things water meter body 100, two symmetrical moving plates 123 are arranged on the outer side of the cleaning ring 121, the moving plates 123 slide on the inner wall of the conveying pipe of the Internet of things water meter body 100, a screw rod 124 rotates on the inner wall of the conveying pipe of the Internet of things water meter body 100, the outer wall of the screw rod 124 is in threaded fit connection with the surface of one of the moving plates 123, when the screw rod 124 rotates, the surface of the moving plate 123 can slide along the threads on the outer wall of the screw rod 124, so that the cleaning ring 121 is driven to slide in the conveying pipe of the Internet of things water meter body 100, the end parts of the cleaning brushes 122 are driven to slide along the inner wall of the conveying pipe of the Internet of things water meter body 100, and scale attached to be conveniently cleaned, avoid influencing the water velocity, improve the maintenance effect of thing networking water gauge body 100, be favorable to increase of service life, lead screw 124 end connection has first conical gear 1241, first conical gear 1241 outer wall meshing has second conical gear 1242 end connection to have control motor 1243, the inside control module that is equipped with of control motor 1243, control module is used for receiving the control signal of trouble maintenance unit, control motor 1243 work, control motor 1243 output shaft drives second conical gear 1242 and rotates, thereby the meshing drives first conical gear 1241 and rotates, it is more convenient to make lead screw 124 rotate inside the conveyer pipe of thing networking water gauge body 100.

In order to avoid serious damage to the internet of things water meter body 100 caused by abrasion, the outer wall of the movable plate 123 close to the end part is provided with the rotating groove 1231, the rotating groove 1231 rotates inside to be provided with the roller 1232, the outer wall of the roller 1232 is tightly attached to the inner wall of the conveying pipe of the internet of things water meter body 100, when the outer wall of the movable plate 123 slides along the inner wall of the conveying pipe of the internet of things water meter body 100, the roller 1232 can be driven to rotate inside the rotating groove 1231, so that the roller 1232 rolls along the inner wall of the internet of things water meter body 100, the friction resistance between the inner wall of the movable plate 123 and the inner wall of the internet of things water meter body 100 can be reduced, and the serious damage to the internet of things water meter body 100 caused by abrasion is avoided.

In order to improve the cleaning efficiency of incrustation scale, a plurality of spacing grooves 1210 have been seted up to clearance ring 121 equidistant on the surface, be connected with limiting plate 1221 between a plurality of clearance brush 122 bottoms on the same water flat line, limiting plate 1221 slides inside spacing groove 1210, fixedly connected with spacing spring 1222 between limiting plate 1221 bottom and the spacing groove 1210 inner chamber bottom, can be when clearance brush 122 tip brushes along the conveyer pipe inner wall of thing networking water meter body 100, make limiting plate 1221 slide inside spacing groove 1210, spacing spring 1222 compresses, make the inner wall of thing networking water meter body 100 conveyer pipe of more laminating of clearance brush 122 tip, improve the cleaning efficiency of incrustation scale.

Specifically, the surface of the movable plate 123 far away from the screw 124 is slidably sleeved with the positioning rod 125, the positioning rod 125 is fixed inside the conveying pipe of the internet of things water meter body 100, and when the cleaning ring 121 moves back and forth, the movable plate 123 slides inside the positioning rod 125, so that the cleaning ring 121 is prevented from inclining, and the brushing stability is ensured.

When the internet of things water meter body 100 is used specifically, the fault maintenance unit detects the water flow rate at regular time, transmits a control signal to the control module in the control motor 1243 when the flow rate is abnormal, and the output shaft of the control motor 1243 drives the second bevel gear 1242 to rotate, so that the first bevel gear 1241 is driven to rotate in a meshed manner, the screw rod 124 is driven to rotate in the conveying pipe of the internet of things water meter body 100, the surface of the moving plate 123 slides along the thread on the outer wall of the screw rod 124, the cleaning ring 121 is driven to slide in the conveying pipe of the internet of things water meter body 100, the end part of the cleaning brush 122 is driven to slide along the inner wall of the conveying pipe of the internet of things water meter body 100, scale attached to the outer wall of the internet of things water meter body 100 can be brushed, scale can be cleaned conveniently, water flow rate is prevented from being influenced, the maintenance effect of the internet of things water meter body 100 is improved, and service life is prolonged.

Example 2

In order to relieve the water pressure intensity entering the water meter body 100 of the internet of things and avoid the damage caused by the large impact of the water pressure, the embodiment is different from embodiment 1, please refer to fig. 9 to 10, in which:

the inner wall that thing networking water gauge body 100 is close to the conveyer pipe tip is equipped with spacing frame 126, the inside rotation of spacing frame 126 is equipped with decompression board 1260, decompression board 1260 outer wall is equipped with sealed the pad 1261, can water from the inside circulation of the conveyer pipe of thing networking water gauge body 100, make the water impact at decompression board 1260 surface, make decompression board 1260 rotate, thereby alleviate water pressure intensity and get into inside thing networking water gauge body 100, avoid the great impact damage of water pressure, be favorable to increase of service life.

In order to avoid water flow affecting the brushing of scale by the cleaning brush 122 on the outer wall of the cleaning ring 121, a connecting plate 1211 is arranged at the center of the inside of the cleaning ring 121, a linkage spring 1212 is fixedly connected to the surface of the connecting plate 1211, and a pressure reducing plate 1260 is fixedly connected to the other end of the linkage spring 1212, so that when the cleaning ring 121 slides inside the conveying pipe of the internet-of-things water meter body 100, the cleaning ring 121 approaches the pressure reducing plate 1260, the linkage spring 1212 is compressed, the pressure reducing plate 1260 is driven to rotate inside the limiting frame 126 under the action of the resilience of the linkage spring 1212, the pressure reducing plate 1260 rotates to be sealed inside the limiting frame 126, water flow can be avoided entering, the cleaning brush 122 on the outer wall of the cleaning ring 121 is prevented from being impacted by water flow, the scale is brushed by the cleaning brush 122 on the outer wall of the cleaning ring 121, the cleaning effect is improved, a positioning plate 1262 is arranged at the end edge of the limiting frame 126, and the positioning plate 1262 can limit the rotation range of the pressure reducing plate 1260 when the pressure reducing plate 1260 rotates inside the limiting frame 126, avoid random circle of commentaries on classics to influence sealed effect, guarantee structural integrity.

Example 3

In order to buffer the damage of the rigid impact to the display screen 111, the present embodiment is different from embodiment 1 in that please refer to fig. 11, in which:

remote control terminal 110 top is equipped with display screen 111, display screen 111 top is equipped with buffering frame 112, fixedly connected with buffer spring 1120 between buffering frame 112 four corners department and the display screen 111 top four corners department, can drop from display screen 111 top at the foreign matter, can pound earlier at buffering frame 112 top, make buffer spring 1120 compress, cushion the damage of rigid impact to display screen 111 under buffer spring 1120 resilience, buffering frame 112 surface slides and is equipped with shielding plate 113, not only increase the buffering scope through shielding plate 113, and can avoid the dust to invade display screen 111.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.