阅读说明：本技术 一种NB-IoT物联网智能水表 (NB-IoT Internet of things intelligent water meter ) 是由 耿哲 张淑贞 亓恒忠 于 2019-10-14 设计创作，主要内容包括：本发明涉及一种NB-IoT物联网智能水表,包括主体、显示屏、两个固定管和两个连接管,所述显示屏设置在主体上,两个固定管分别设置在主体的两侧,所述固定管的一端与主体连通,所述连接管一一对应且同轴设置,所述连接管的内径与固定管的外径相等,所述固定管上设有外螺纹,所述连接管的内壁上设有内螺纹,所述主体上设有信号收发模块,两个连接管上均设有辅助机构,其中一个连接管内设有锁紧机构,该NB-IoT物联网智能水表通过辅助机构实现了减小连接管与固定管连接处的受力,避免螺纹产生变形而影响连接管与固定管之间的密封性,不仅如此,还通过锁紧机构实现了避免带压操作导致喷水而使周围物体受潮。(The invention relates to an NB-IoT (Internet of things) intelligent water meter which comprises a main body, a display screen, two fixed pipes and two connecting pipes, the display screen is arranged on the main body, the two fixed tubes are respectively arranged on the two sides of the main body, one end of each fixed tube is communicated with the main body, the connecting pipes are in one-to-one correspondence and are coaxially arranged, the inner diameter of each connecting pipe is equal to the outer diameter of the fixed pipe, the fixed pipe is provided with external threads, the inner wall of the connecting pipe is provided with internal threads, the main body is provided with a signal receiving and transmitting module, the two connecting pipes are both provided with auxiliary mechanisms, a locking mechanism is arranged in one connecting pipe, the stress at the joint of the connecting pipe and the fixed pipe is reduced through an auxiliary mechanism, the influence on the sealing performance between the connecting pipe and the fixed pipe due to the deformation of threads is avoided, and the phenomenon that the surrounding objects are affected by damp due to water spray caused by operation under pressure is avoided through the locking mechanism.)

1. An NB-IoT (Internet of things) intelligent water meter comprises a main body (1), a display screen (2), two fixed pipes (3) and two connecting pipes (4), wherein the display screen (2) is arranged on the main body (1), the two fixed pipes (3) are respectively arranged on two sides of the main body (1), one end of each fixed pipe (3) is communicated with the main body (1), the connecting pipes (4) are in one-to-one correspondence and are coaxially arranged, the inner diameter of each connecting pipe (4) is equal to the outer diameter of the corresponding fixed pipe (3), external threads are arranged on the corresponding fixed pipes (3), internal threads are arranged on the inner wall of each connecting pipe (4), the internal threads are matched with the external threads, one end, far away from the main body (1), of each fixed pipe (3) is arranged in the corresponding connecting pipe (4), the connecting pipes (4) are in threaded connection with the corresponding fixed pipes (3), and the connecting pipes (4) are in sealed, the device is characterized in that the two connecting pipes (4) are both provided with auxiliary mechanisms, and one of the connecting pipes (4) is internally provided with a locking mechanism;

the auxiliary mechanism comprises a sliding pipe (5), three auxiliary assemblies and three resetting assemblies, the sliding pipe (5) and the connecting pipe (4) are coaxially arranged, the inner diameter of the sliding pipe (5) is larger than the outer diameter of the connecting pipe (4), an annular groove is formed in the periphery of the connecting pipe (4), the annular groove and the connecting pipe (4) are coaxially arranged, the connecting pipe (4) penetrates through the sliding pipe (5), the annular groove is located in the sliding ring, the resetting assemblies are circumferentially and uniformly distributed on the inner wall of the sliding pipe (5) by taking the axis of the connecting pipe (4) as a center, the resetting assemblies drive the sliding pipe (5) to move towards the direction close to the main body (1), and the auxiliary assemblies correspond to the sliding assemblies one to one;

the auxiliary assembly comprises a rotating rod (6) and an auxiliary block (7), the rotating rod (6) is parallel to a connecting pipe (4), one end of the rotating rod (6) is hinged to the main body (1), the other end of the rotating rod (6) is arranged in the sliding pipe (5) and is abutted to the inner wall of the sliding pipe (5), the auxiliary block (7) is in a round table shape, the auxiliary block (7) is arranged on one side, close to the connecting pipe (4), of the rotating rod (6), the axis of the auxiliary block (7) is perpendicular to the axis of the connecting pipe (4) and is intersected with the axis of the connecting pipe, the maximum interval of the auxiliary block (7) is greater than the notch width of the annular groove, the minimum diameter of the auxiliary block (7) is smaller than the notch width of the annular groove, the auxiliary block (7) is opposite to the notch of the annular groove, one end, between the maximum, of the auxiliary block (7), is fixed on, one end of the auxiliary block (7) with the smallest diameter is inserted into the annular groove, and the auxiliary block (7) is abutted to the notch of the annular groove;

the locking mechanism comprises three locking assemblies, the locking assemblies correspond to the rotating rods (6) one by one, the locking assemblies comprise locking rings (8), locking rods (9), push plates (10), auxiliary pipes (11) and sealing plates (12), the locking rings (8) are parallel to the connecting pipes (4), the locking rods (9) and the auxiliary pipes (11) are coaxially arranged with the locking rings (8), the sealing plates (12) are perpendicular to the auxiliary pipes (11), the auxiliary pipes (11) are fixed on the inner walls of the connecting pipes (4), the sealing plates (12) are arranged at one ends, close to the main body (1), of the auxiliary pipes (11), the sealing plates (12) are fixedly and hermetically connected with the auxiliary pipes (11), mounting holes are formed in the sealing plates (12), the mounting holes are coaxially arranged with the locking rods (9), the diameters of the mounting holes are equal to the diameters of the locking rods (9) and are smaller than the inner diameters of the auxiliary pipes (11), the utility model discloses a sealing structure, including mounting hole, locking lever (9), push pedal (10), locking lever (9) and sealing connection, push pedal (10) are parallel with closing plate (12), push pedal (10) set up in auxiliary tube (11), push pedal (10) match and sliding connection with auxiliary tube (11), the one end of keeping away from main part (1) at locking lever (9) is fixed in push pedal (10), locking ring (8) are located between locking lever (9) and main part (1), locking ring (8) are fixed on the inner wall of fixed pipe (3), be equipped with the clearance between locking lever (9) and locking ring (8), the annular hole aperture of locking ring (8) equals with the diameter of locking lever (9).

2. The NB-IoT IOT intelligent water meter according to claim 1, characterized in that a limiting block (13) is provided in each auxiliary pipe (11), said limiting block (13) is located at one side of the push plate (10) far from the main body (1), said limiting block (13) is fixed on the auxiliary pipe (11), said limiting block (13) abuts against the push plate (10).

3. The NB-IoT internet-of-things intelligent water meter according to claim 2, wherein the stopper (13) is made of rubber.

4. The NB-IoT Internet of things intelligent water meter according to claim 1, wherein the resetting assembly comprises a connecting block (14), a guide rod (15), a sliding block (16), a spring (17) and a stopper (18), the guide rod (15) is parallel to the connecting pipe (4), one end of the guide rod (15) close to the main body (1) is fixed on the inner wall of the sliding pipe (5) through the connecting block (14), the stopper (18) is fixed at the other end of the guide rod (15), the sliding block (16) is sleeved on the guide rod (15), the sliding block (16) abuts against the stopper (18), the sliding block (16) is fixed on the connecting pipe (4), the spring (17) is located between the connecting block (14) and the sliding block (16), and the connecting block (14) is connected with the sliding block (16) through the spring (17).

5. The NB-IoT intelligent water meter according to claim 4, characterized in that the guide rod (15) is coated with lubricating oil.

6. The NB-IoT (Internet of things) intelligent water meter according to claim 4, wherein a distance sensor (19) is arranged at one end of each rotating rod (6) far away from the main body (1), the distance sensor (19) is positioned between the rotating rod (6) and the connecting block (14), the distance sensor (19) and the connecting block (14) are arranged in a right-to-right mode, a PLC (programmable logic controller) is arranged on the main body (1), the distance sensor (19) is electrically connected with the PLC, and the PLC is connected with the signal transceiving module.

7. The NB-IoT internet-of-things intelligent water meter according to claim 1, wherein a temporary drain valve (20) is disposed on the fixed pipe (3) provided with the locking ring (8), the temporary drain valve (20) is disposed in the fixed pipe (3), and the temporary drain valve (20) is located between the connection pipe (4) and the main body (1).

8. The NB-IoT internet-of-things intelligent water meter according to claim 1, wherein the sliding tube (5) is provided with anti-slip threads on its outer circumference.

9. An NB-IoT internet-of-things intelligent water meter as claimed in claim 1, wherein the junction of the connecting tube (4) and the fixed tube (3) is coated with sealing grease.

10. The NB-IoT IOT intelligent water meter according to claim 1, characterized in that the inner wall of the connection pipe (4) is provided with an anti-corrosion zinc coating.

Technical Field

The invention relates to the field of measuring equipment, in particular to an NB-IoT (network B-IoT) Internet of things intelligent water meter.

Background

The narrowband Internet of Things (NB-IoT) becomes an important branch of the world-wide Internet. The NB-IoT is constructed in a cellular network, only consumes about 180kHz bandwidth, and can be directly deployed in a GSM network, a UMTS network or an LTE network so as to reduce the deployment cost and realize smooth upgrading. NB-IoT is an emerging technology in the IoT domain that supports cellular data connectivity for low power devices over wide area networks, also known as Low Power Wide Area Networks (LPWANs). NB-IoT supports efficient connectivity for devices with long standby time and high requirements for network connectivity. NB-IoT device battery life is said to be improved by at least 10 years while still providing very comprehensive indoor cellular data connection coverage.

The intelligent water meter is a new water meter which measures the water consumption by using modern microelectronic technology, modern sensing technology and intelligent IC card technology and transmits the water consumption data and settles the transaction, the existing intelligent water meter is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are communicated with the external water pipe in a threaded connection mode, when water flows in the intelligent water meter, the threaded connection parts of the water inlet pipe, the water outlet pipe and the external water pipe are stressed by the resistance of parts in the intelligent water meter to water flow, the clearance of the threaded connection parts is influenced to be increased for a long time, the sealing performance is influenced, but also easily make the screw thread produce the deformation, and so when intelligent water need be changed because of damaging, if the change personnel forget to close water supply equipment because of the comfort, easily make water spill over, lead to that the object is dampened around the intelligent water gauge, still can lead to the electric leakage when serious.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, an NB-IoT Internet of things intelligent water meter is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: an NB-IoT (network B-IoT) Internet of things intelligent water meter comprises a main body, a display screen, two fixed pipes and two connecting pipes, wherein the display screen is arranged on the main body, the two fixed pipes are respectively arranged at two sides of the main body, one ends of the fixed pipes are communicated with the main body, the connecting pipes are arranged in a one-to-one correspondence and coaxial manner, the inner diameter of each connecting pipe is equal to the outer diameter of the corresponding fixed pipe, the fixed pipes are provided with external threads, the inner walls of the connecting pipes are provided with internal threads which are matched with the external threads, one ends of the fixed pipes, which are far away from the main body, are arranged in the connecting pipes, the connecting pipes are in threaded connection with the fixed pipes, the connecting pipes are in sealed connection with the fixed pipes, a measuring device is arranged in the main body;

the auxiliary mechanism comprises a sliding pipe, three auxiliary assemblies and three reset assemblies, the sliding pipe and the connecting pipe are coaxially arranged, the inner diameter of the sliding pipe is larger than the outer diameter of the connecting pipe, an annular groove is formed in the periphery of the connecting pipe, the annular groove and the connecting pipe are coaxially arranged, the connecting pipe penetrates through the sliding pipe, the annular groove is located in the sliding ring, the reset assemblies are circumferentially and uniformly distributed on the inner wall of the sliding pipe by taking the axis of the connecting pipe as a center, the reset assemblies drive the sliding pipe to move towards the direction close to the main body, and the auxiliary assemblies and the sliding assemblies are in one-to-one correspondence;

the auxiliary assembly comprises a rotating rod and an auxiliary block, the rotating rod is parallel to the connecting pipe, one end of the rotating rod is hinged to the main body, the other end of the rotating rod is arranged in the sliding pipe and is abutted to the inner wall of the sliding pipe, the auxiliary block is shaped like a circular truncated cone and is arranged on one side, close to the connecting pipe, of the rotating rod, the axis of the auxiliary block is perpendicular to and intersected with the axis of the connecting pipe, the maximum distance between the auxiliary blocks is larger than the width of a notch of the annular groove, the minimum diameter of the auxiliary block is smaller than the width of the notch of the annular groove, the auxiliary block is opposite to the notch of the annular groove, one end, between the maximum distances, of the auxiliary block is fixed on the rotating rod, one end, with the minimum diameter, of the auxiliary;

the locking mechanism comprises three locking assemblies, the locking assemblies correspond to the rotating rods one by one, each locking assembly comprises a locking ring, a locking rod, a push plate, an auxiliary pipe and a sealing plate, the locking ring is parallel to the connecting pipe, the locking rod and the auxiliary pipe are coaxially arranged with the locking ring, the sealing plate is perpendicular to the auxiliary pipe, the auxiliary pipe is fixed on the inner wall of the connecting pipe, the sealing plate is arranged at one end, close to the main body, of the auxiliary pipe, the sealing plate is fixedly and hermetically connected with the auxiliary pipe, a mounting hole is formed in the sealing plate, the mounting hole and the locking rod are coaxially arranged, the diameter of the mounting hole is equal to the diameter of the locking rod and smaller than the inner diameter of the auxiliary pipe, the locking rod penetrates through the mounting hole, the locking rod is slidably and hermetically connected with the inner wall of the mounting hole, the push plate is parallel to, the push plate is matched with the auxiliary pipe and is in sliding connection with the auxiliary pipe, the push plate is fixed at one end, far away from the main body, of the locking rod, the locking ring is located between the locking rod and the main body, the locking ring is fixed on the inner wall of the fixing pipe, a gap is formed between the locking rod and the locking ring, and the diameter of the annular hole of the locking ring is equal to that of the locking rod.

As the preferred, in order to avoid push pedal and auxiliary tube separation, all be equipped with the stopper in each auxiliary tube, the stopper is located the one side of keeping away from the main part of push pedal, the stopper is fixed on auxiliary tube, the stopper supports with the push pedal and leans on.

Preferably, in order to achieve the effects of buffering and vibration reduction, the limiting block is made of rubber.

Preferably, in order to realize the reset of the sliding tube, the reset assembly comprises a connecting block, a guide rod, a sliding block, a spring and a stop block, the guide rod is parallel to the connecting tube, one end of the guide rod, close to the main body, is fixed on the inner wall of the sliding tube through the connecting block, the stop block is fixed at the other end of the guide rod, the sliding block is sleeved on the guide rod, the sliding block is abutted against the stop block, the sliding block is fixed on the connecting tube, the spring is located between the connecting block and the sliding block, and the connecting block is connected with the.

Preferably, the guide bar is coated with a lubricating oil in order to reduce friction between the guide bar and the slider.

As preferred, in order to realize the effect of monitoring, the one end of keeping away from the main part of each dwang all is equipped with distance sensor, distance sensor is located between dwang and the connecting block, distance sensor and connecting block are just to setting up, be equipped with PLC in the main part, distance sensor is connected with the PLC electricity, PLC is connected with signal transceiver module.

Preferably, in order to realize temporary drainage, a temporary drainage valve is arranged on the fixing pipe provided with the locking ring, the temporary drainage valve is arranged in the fixing pipe, and the temporary drainage valve is positioned between the connecting pipe and the main body.

Preferably, in order to avoid slipping, the outer circumference of the sliding tube is provided with anti-slipping threads.

Preferably, in order to reduce the gap between the connection tube and the fixing tube, the connection portion of the connection tube and the fixing tube is coated with sealing grease.

Preferably, in order to prolong the antirust capacity of the connecting pipe, an anti-corrosion zinc coating is arranged on the inner wall of the connecting pipe.

The NB-IoT internet-of-things intelligent water meter has the advantages that stress at the connecting part of the connecting pipe and the fixed pipe is reduced through the auxiliary mechanism, the influence on sealing performance between the connecting pipe and the fixed pipe due to deformation of threads is avoided, compared with the existing auxiliary mechanism, the stability of the connecting pipe arranged on the fixed pipe can be improved through the matching of the three locking blocks and the annular groove according to the stable distance of a triangle, and in addition, the locking mechanism is used for avoiding the phenomenon that the surrounding objects are affected with damp due to water spraying caused by operation under pressure.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic diagram of an installation structure of an NB-IoT internet of things intelligent water meter of the present invention;

fig. 2 is a schematic structural diagram of an auxiliary mechanism of the NB-IoT internet of things intelligent water meter of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

in the figure: 1. the automatic water draining device comprises a main body, 2 parts of a display screen, 3 parts of a fixed pipe, 4 parts of a connecting pipe, 5 parts of a sliding pipe, 6 parts of a rotating rod, 7 parts of an auxiliary block, 8 parts of a locking ring, 9 parts of a locking rod, 10 parts of a push plate, 11 parts of an auxiliary pipe, 12 parts of a sealing plate, 13 parts of a limiting block, 14 parts of a connecting block, 15 parts of a guide rod, 16 parts of a sliding block, 17 parts of a spring, 18 parts of a stop block, 19 parts of a distance sensor and 20 parts.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, an NB-IoT internet of things intelligent water meter comprises a main body 1, a display screen 2, two fixed pipes 3 and two connecting pipes 4, wherein the display screen 2 is arranged on the main body 1, the two fixed pipes 3 are respectively arranged on two sides of the main body 1, one end of each fixed pipe 3 is communicated with the main body 1, the connecting pipes 4 are coaxially arranged in a one-to-one correspondence manner, the inner diameter of each connecting pipe 4 is equal to the outer diameter of each fixed pipe 3, the fixed pipes 3 are provided with external threads, the inner wall of each connecting pipe 4 is provided with internal threads, the internal threads are matched with the external threads, one end of each fixed pipe 3, which is far away from the main body 1, is arranged in each connecting pipe 4, the connecting pipes 4 are in threaded connection with the fixed pipes 3, the connecting pipes 4 are in sealed connection with the fixed pipes 3, a measuring device is arranged in the main body 1, a locking mechanism is arranged in one connecting pipe 4;

in two connecting pipes 4, connecting pipe 4 that will be equipped with locking mechanism is connected with external water supply equipment, be connected another connecting pipe 4 with external water supply equipment, after water passes through connecting pipe 4 and fixed pipe 3 and carries to main part 1 in, realize the measurement to the water yield through measuring device, and with information display on display screen 2, and simultaneously, through signal transceiver module with measured information transmission to relevant departments, here, the effect that sets up locking mechanism produces the water spray condition and leads to around object to wet when avoiding changing main part 1, the effect that sets up complementary unit is the atress that reduces the threaded connection department of fixed pipe 3 and connecting pipe 4, avoid the screw thread damage and lead to the leakproofness to reduce.

As shown in fig. 2-3, the auxiliary mechanism includes a sliding tube 5, three auxiliary components and three reset components, the sliding tube 5 is coaxially disposed with the connecting tube 4, the inner diameter of the sliding tube 5 is larger than the outer diameter of the connecting tube 4, an annular groove is disposed on the periphery of the connecting tube 4, the annular groove is coaxially disposed with the connecting tube 4, the connecting tube 4 passes through the sliding tube 5, the annular groove is located in the sliding ring, the reset components are circumferentially and uniformly distributed on the inner wall of the sliding tube 5 with the axis of the connecting tube 4 as the center, the reset components drive the sliding tube 5 to move toward the direction close to the main body 1, and the auxiliary components are in one-to-one correspondence with the sliding components;

the auxiliary assembly comprises a rotating rod 6 and an auxiliary block 7, the rotating rod 6 is parallel to the connecting pipe 4, one end of the rotating rod 6 is hinged with the main body 1, the other end of the rotating rod 6 is arranged in the sliding tube 5 and is propped against the inner wall of the sliding tube 5, the auxiliary block 7 is in the shape of a circular truncated cone, the auxiliary block 7 is arranged on one side of the rotating rod 6 close to the connecting pipe 4, the axial line of the auxiliary blocks 7 is vertical to and intersects with the axial line of the connecting pipe 4, the maximum distance between the auxiliary blocks 7 is larger than the width of the notch of the annular groove, the minimum diameter of the auxiliary block 7 is smaller than the width of the notch of the annular groove, the auxiliary block 7 is arranged opposite to the notch of the annular groove, one end between the largest of the auxiliary blocks 7 is fixed on the rotating rod 6, one end with the smallest diameter of the auxiliary block 7 is inserted into the annular groove, and the auxiliary block 7 is abutted to the notch of the annular groove;

insert the ring channel through the auxiliary block 7, make the axial direction along connecting pipe 4 of connecting pipe 4 realize locking, and, can disperse the reverse acting force that the resistance to rivers of the main part 1 produced to the annular channel to the notch of the ring channel through dwang 6 and auxiliary block 7, the dispersion of the power has been realized, thus can reduce the atress of internal thread and external screw thread, and, support with the dwang 6 through the inner wall of the sliding tube 5, can avoid the auxiliary block 7 atress and lead to the dwang 6 to rotate, can prevent the auxiliary block 7 from separating with the ring channel, when needing to separate the fixed tube 3 from connecting pipe 4, move towards keeping away from the main part 1 direction through stirring the sliding tube 5, make the dwang 6 separate with the sliding tube 5, namely can make the rotating tube realize rotating, thus make the auxiliary block 7 separate from the ring channel, at this moment, can separate from the fixed tube 3 through rotating the connecting, when the connecting pipe 4 is installed again on the fixed pipe 3 to make the auxiliary block 7 from rotating to the annular groove in back again, make the slide tube 5 realize restoring to the throne through the subassembly that restores to the throne, make the inner wall of slide tube 5 lean on with dwang 6 again.

As shown in fig. 4, the locking mechanism includes three locking assemblies, the locking assemblies correspond to the rotating rods 6 one by one, the locking assemblies include a locking ring 8, a locking rod 9, a push plate 10, an auxiliary tube 11 and a sealing plate 12, the locking ring 8 is parallel to the connecting tube 4, the locking rod 9 and the auxiliary tube 11 are coaxially disposed with the locking ring 8, the sealing plate 12 is perpendicular to the auxiliary tube 11, the auxiliary tube 11 is fixed on the inner wall of the connecting tube 4, the sealing plate 12 is disposed at one end of the auxiliary tube 11 close to the main body 1, the sealing plate 12 is fixed and hermetically connected with the auxiliary tube 11, the sealing plate 12 is provided with a mounting hole, the mounting hole is coaxially disposed with the locking rod 9, the aperture of the mounting hole is equal to the diameter of the locking rod 9 and smaller than the inner diameter of the auxiliary tube 11, the locking rod 9 passes through the mounting hole, and the locking rod 9 is slidably and hermetically connected with the, the push plate 10 is parallel to the sealing plate 12, the push plate 10 is arranged in the auxiliary pipe 11, the push plate 10 is matched with and slidably connected with the auxiliary pipe 11, the push plate 10 is fixed at one end, far away from the main body 1, of the locking rod 9, the locking ring 8 is located between the locking rod 9 and the main body 1, the locking ring 8 is fixed on the inner wall of the fixed pipe 3, a gap is formed between the locking rod 9 and the locking ring 8, and the diameter of the annular hole of the locking ring 8 is equal to that of the locking rod 9.

Make push pedal 10 move towards the 8 directions of being close to locking ring under the effect of water pressure through the water in the connecting pipe 4, thereby make push pedal 10 drive locking lever 9 and remove, and connect the atmospheric pressure increase between closing plate 12 and push pedal 10 in the pipe 4, and make locking lever 9 pass locking ring 8, thereby make fixed pipe 3 realize locking with connecting pipe 4, can avoid connecting pipe 4 interior water pressure when too big to realize dismantling connecting pipe 4, after connecting pipe 4 interior water pressure is lower or eliminated, make push pedal 10 drive locking lever 9 under the effect of atmospheric pressure again and realize resetting, thereby make locking lever 9 and locking ring 8 separation.

Preferably, in order to avoid the separation of the push plate 10 from the auxiliary pipes 11, a limit block 13 is arranged in each auxiliary pipe 11, the limit block 13 is located on one side of the push plate 10, which is far away from the main body 1, the limit block 13 is fixed on the auxiliary pipe 11, and the limit block 13 abuts against the push plate 10.

The limiting block 13 is used for preventing the push plate 10 from being separated from the auxiliary tube 11 due to the fact that the push plate 10 excessively moves towards the direction far away from the main body 1, and a limiting effect is achieved.

Preferably, in order to achieve the effects of buffering and vibration reduction, the material of the limiting block 13 is rubber.

The rubber texture is comparatively soft, can reduce the push pedal 10 and the stopper 13 and lean on the impact force that produces when leaning on, has realized the effect of buffering and damping.

Preferably, in order to realize the resetting of the sliding tube 5, the resetting assembly comprises a connecting block 14, a guide rod 15, a sliding block 16, a spring 17 and a stop block 18, the guide rod 15 is parallel to the connecting tube 4, one end of the guide rod 15, which is close to the main body 1, is fixed on the inner wall of the sliding tube 5 through the connecting block 14, the stop block 18 is fixed at the other end of the guide rod 15, the sliding block 16 is sleeved on the guide rod 15, the sliding block 16 abuts against the stop block 18, the sliding block 16 is fixed on the connecting tube 4, the spring 17 is located between the connecting block 14 and the sliding block 16, and the connecting block 14 is connected with the sliding block 16.

When the sliding tube 5 is pulled to move towards the direction far away from the main body 1, the sliding tube 5 moves to drive the connecting block 14 to enable the guide rod 15 to move towards the direction far away from the main body 1 on the sliding block 16, the spring 17 is compressed, and after the sliding tube 5 is loosened, the guide rod 15 can be reset under the elastic action of the spring 17, and the sliding tube 5 is driven to reset.

Preferably, in order to reduce the friction between the guide rod 15 and the slider 16, the guide rod 15 is coated with a lubricating oil.

The lubricating oil has the function of reducing the friction force between the guide rod 15 and the sliding block 16 and improving the moving fluency of the guide rod 15.

As preferred, in order to realize the effect of monitoring, the one end of keeping away from main part 1 of each dwang 6 all is equipped with distance sensor 19, distance sensor 19 is located dwang 6 and connecting block 14 between, distance sensor 19 is just to setting up with connecting block 14, be equipped with PLC on the main part 1, distance sensor 19 is connected with the PLC electricity, PLC is connected with signal transceiver module.

The PLC, namely a programmable logic controller, adopts a programmable memory, is used for storing programs in the programmable memory, executes instructions facing users such as logic operation, sequence control, timing, counting, arithmetic operation and the like, controls various types of machinery or production processes through digital or analog input and output, is a computer special for industrial control, has a hardware structure basically the same as that of a microcomputer, is generally used for data processing and instruction receiving and output, is used for realizing central control, increases the distance between a distance sensor 19 and a connecting block 14 when a sliding pipe 5 is moved privately without approval to disassemble, and enables the distance sensor 19 to send signals to the PLC when the distance value detected by the distance sensor 19 is larger than a set range, and the PLC sends signals to related departments through a signal transceiving module.

Preferably, in order to achieve the temporary water discharge, a temporary water discharge valve 20 is provided on the fixing pipe 3 provided with the locking ring 8, the temporary water discharge valve 20 is disposed inside the fixing pipe 3, and the temporary water discharge valve 20 is located between the connection pipe 4 and the main body 1.

Under normal conditions, can realize the pressure release through water equipment, interim drain valve 20's effect is when avoiding blockking up in the main part 1 and leading to water pressure normally to realize the pressure release, can discharge the water in the connecting pipe 4 that is equipped with locking ring 8 through interim drain valve 20, can accomplish the pressure release.

Preferably, the sliding tube 5 is provided with anti-slip threads on its outer circumference in order to avoid slipping.

The anti-slip lines are used for improving the friction force between the hands of workers and the sliding pipe 5 and avoiding slipping.

Preferably, in order to reduce the gap between the connection tube 4 and the fixed tube 3, the connection between the connection tube 4 and the fixed tube 3 is coated with sealing grease.

The sealing grease has the function of reducing the gap between the connecting pipe 4 and the fixing pipe 3 and improving the sealing property.

Preferably, in order to prolong the antirust capacity of the connecting pipe 4, an anticorrosive zinc coating is provided on the inner wall of the connecting pipe 4.

The function of anticorrosive galvanizing coat is to promote the rust-resistant ability of connecting pipe 4, prolongs the life of connecting pipe 4.

This intelligence water gauge is in the use, main part 1 can disperse to the notch of ring channel through dwang 6 and auxiliary block 7 to the reverse acting force that the resistance of rivers produced, the dispersion of power has been realized, thereby can reduce the atress of internal thread and external screw thread, avoid influencing the leakproofness between connecting pipe 4 and the fixed pipe 3, and simultaneously, make check lock lever 9 insert in locking ring 8 through hydraulic effect, make connecting pipe 4 and fixed pipe 3 realize the lock and die, when needs change or maintain main part 1, then need realize the pressure release back with the water pressure in the connecting pipe 4, check lock lever 9 just separates with locking ring 8, can be in order to realize the change or the maintenance to main part 1, avoid the water pressure in the connecting pipe 4 too big production water spray condition and lead to around object to wet.

Compared with the prior art, the NB-IoT Internet of things intelligent water meter has the advantages that stress at the joint of the connecting pipe 4 and the fixed pipe 3 is reduced through the auxiliary mechanism, the problem that threads deform to influence the sealing performance between the connecting pipe 4 and the fixed pipe 3 is avoided, compared with the existing auxiliary mechanism, the auxiliary mechanism is matched with the annular groove through the three locking blocks, stability of the connecting pipe 4 installed on the fixed pipe 3 can be improved according to stable triangular separation, and moreover, the locking mechanism is used for avoiding water spraying and wetting surrounding objects due to operation under pressure.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.