Assembly type electromagnetic water meter with anti-electromagnetic interference function

Abstract

The invention relates to the technical field of electromagnetic water meters, in particular to an assembly type electromagnetic water meter with an anti-electromagnetic interference function, which comprises an electromagnetic water meter assembly, a connecting plate is fixed at the lower end of the electromagnetic water meter assembly, anti-interference protective cover assemblies are arranged on two sides of the electromagnetic water meter assembly, and the two anti-interference protective cover assemblies abut against each other. The two anti-interference protective cover assemblies form a box body structure, and the two ends of the electromagnetic water meter assembly penetrate through the box body structure and extend to the two ends of the box body structure respectively. Annular grooves are formed in the lower ends of the interiors of the anti-interference protective cover assemblies, and the annular grooves in the two anti-interference protective cover assemblies form one annular groove. According to the electromagnetic water meter assembly, through ingenious component arrangement, connection and fixation between the two anti-interference protective cover assemblies and the connecting plate can be rapidly completed, so that the electromagnetic water meter assembly is effectively protected, use of the electromagnetic water meter assembly is not affected, and meanwhile disassembly can be rapidly completed so as to be convenient to overhaul and maintain.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic water meter technology, and in particular to an assembled electromagnetic water meter with anti-electromagnetic interference function. Background Technology

[0002] Electromagnetic water meters operate on the principle of Faraday's law of electromagnetic induction. They accurately acquire water usage data from users and, with the aid of a wireless transmission module, transmit this data to the water supply company's management platform. The water company can then quickly obtain the water consumption data for all users and calculate water fees accordingly. However, because electromagnetic water meters are susceptible to interference from external magnetic fields, which can affect data acquisition, a magnetic shielding layer is typically added to reduce this interference.

[0003] Announcement No. CN117168551A discloses an electromagnetic water meter with anti-electromagnetic interference capabilities and its anti-interference method. The device includes: a main body; two symmetrically arranged flow guide indicators, both located on the main body, serving as auxiliary indicators; a warning light located on the main body to alert users to magnetic interference affecting the electromagnetic water meter; a magnetic sensor located on the main body to sense magnetism; a water meter body located on the main body; an electromagnetic shielding cylinder located on the underside of the water meter body to shield against magnetism; a connecting block located on the main body to assist in connection; and a snap-fit ​​mechanism located on the electromagnetic shielding cylinder to facilitate manual replacement of the shielding cylinder. This invention, through the above-mentioned design, facilitates the disassembly and replacement of the anti-magnetic device and provides a corresponding solution to magnetic interference, effectively reducing water waste.

[0004] The above technical solution involves cumbersome installation steps for the components, which are not easy to disassemble quickly, making it difficult to inspect and maintain them. It also makes it difficult to quickly and intuitively understand the status of the water meter. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an assembled electromagnetic water meter with anti-electromagnetic interference function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An assembled electromagnetic water meter with anti-electromagnetic interference function includes an electromagnetic water meter assembly. A connecting plate is fixed to the lower end of the electromagnetic water meter assembly. Anti-interference protective cover assemblies are provided on both sides of the electromagnetic water meter assembly. The two anti-interference protective cover assemblies abut against each other and form a box structure. The two ends of the electromagnetic water meter assembly pass through the box structure and extend to both ends of the box structure. The lower end of the anti-interference protective cover assembly is provided with an annular groove. The annular grooves on two anti-interference protective cover assemblies form a single annular groove. Bending connectors are installed at the four corners of the annular groove. At the right-angle position of the bending connector, an extrusion member, a first baffle member, and a second baffle member are sequentially provided. The extrusion member, the first baffle member, and the second baffle member overlap with the bending connector. A pressure-bearing mechanism is provided at the right-angle position of the bending connector. The pressure-bearing mechanism is provided with two linkage rods, which are respectively connected to two extrusion mechanisms. An insertion plate is provided on the extrusion mechanism. Both ends of the second baffle member are provided with pressure-bearing mechanisms. The two insertion plates are respectively connected to the two pressure-bearing mechanisms. The pressure-bearing mechanism is provided with four ball bearings. Eight arc-shaped grooves are provided at the four corners of the connecting plate. The ball bearings extend into the corresponding arc-shaped grooves.

[0007] Compared with the prior art, this application, through its ingenious component arrangement, can quickly complete the connection and fixation between the two anti-interference protective cover components and the connecting plate, so as to effectively protect the electromagnetic water meter component without affecting its use, and at the same time, it can be quickly disassembled for inspection and maintenance.

[0008] Preferably, the pressure-bearing mechanism includes two through-holes on adjacent sides inside the bending connector, and two swing rods are rotatably connected to two adjacent inner walls inside the bending connector. The two swing rods pass through the two through-holes respectively. A tension spring is fixed between the swing rods and the inner walls of the bending connector. The swing rods and the pressing member abut against each other. The linkage rod is rotatably connected to the swing rods.

[0009] Furthermore, the through-hole facilitates the movement of the corresponding components. During actual installation, when the annular grooves on the two anti-interference protective cover assemblies align with the connecting plates, the connecting plates can be inserted into the annular grooves. This allows the annular grooves to compress the extrusion member, the first baffle, and the second baffle, causing the extrusion member to compress the swing arm. To facilitate the rotation of the swing arm, rollers can be added at the contact point between the swing arm and the extrusion member, allowing the swing arm to rotate under the pressure of the extrusion member, thus causing the linkage rod to rotate. This enables subsequent corresponding components to operate in tandem, completing the contact and fixation of the two anti-interference protective cover assemblies. When the two anti-interference protective cover assemblies contact each other, they provide a protective effect.

[0010] Preferably, the extrusion mechanism includes a linkage rod rotatably connected to one end of the linkage rod, a top rod rotatably connected to one end of the linkage rod, the upper end of the top rod rotatably connected to the top of the insert plate, two telescopic frames fixed to the top of the insert plate, the two telescopic frames fixed to the inner wall of the insert plate, and the insert plate being disposed through the bending connector. One end of the linkage is equipped with a limiting mechanism.

[0011] Furthermore, the linkage can push the linkage rod to move away from the swing rod. When the linkage rod moves, it will cause the top rod to operate in a vertical state. At the same time, the two telescopic frame structures ensure that the inserted plate will rise and fall stably. The telescopic frame structure consists of a tube and a rod that is slidably installed in the tube, which can ensure the stability of movement. Furthermore, the position of the linkage rod can be initially limited by the limiting mechanism to ensure the stability of the rising position of the inserted plate.

[0012] Preferably, the limiting mechanism includes a lead screw rotatably connected to one end of the linkage rod, a lead screw nut screwed onto the lead screw rotatable in the bending connector, an elastic telescopic component installed between the lead screw nut and the lead screw rotatable, two fixing plates fixed at the two right-angle ends in the annular groove, the bending connector located between the two fixing plates on the same side, a positioning mechanism provided on the fixing plate, and the positioning mechanism connected to the lead screw rotatable.

[0013] Furthermore, the linkage pushes the lead screw and lead screw nut to move synchronously. When the lead screw nut moves into place, the lead screw passes through the fixed plate, and the lead screw can continue to move under the action of the linkage.

[0014] Preferably, the positioning mechanism includes a limiting rod installed in a fixed plate, a first connecting hole is provided on the lead screw, a second connecting hole is provided on the fixed plate, the second connecting hole and the first connecting hole are connected, the limiting rod is installed in the second connecting hole, and one end of the limiting rod extends into the first connecting hole.

[0015] Furthermore, the lead screw and nut components can rotate to align the first and second connecting holes, allowing the limiting rod to be inserted into the first connecting hole, thereby further ensuring the stability of the bent connector's position.

[0016] Preferably, the end of the lead screw that is away from the linkage rod is hemispherical, and the end of the limiting rod that extends into the lead screw is also hemispherical.

[0017] Furthermore, the hemispherical design facilitates insertion and also allows for easy removal through mutual compression.

[0018] Preferably, the pressure-bearing mechanism includes two linkage plates rotatably connected to the lower end of the second baffle member, the upper ends of the insertion plate member abutting against the two linkage plates respectively, and two inclined rods rotatably connected to the upper ends of the linkage plates. The inclined rods are disposed through the second baffle member, and a pressure-applying mechanism is provided at the upper end of the second baffle member. The pressure-applying mechanism is connected to the two second abutting plates.

[0019] Furthermore, it facilitates quick installation and disassembly.

[0020] Preferably, the pressure applying mechanism includes two first abutment plates slidably mounted on the second baffle plate, two second abutment plates located between the two first abutment plates, a slide rail slidably sleeved on one end of each second abutment plate near the first abutment plate, the slide rail fixedly connected to an annular groove, the slide rail slidably sleeved on the first abutment plate, a compression spring sleeved on the slide rail, the compression spring located between the second abutment plate and the first abutment plate, the two ends of the compression spring respectively fixed to opposite sides of the second abutment plate and the first abutment plate, and the first abutment plate and a diagonal rod at the same end thereon rotatably connected.

[0021] Furthermore, the compression spring and corresponding components help to accommodate deviations in the connecting plate and fully compress the connecting plate, improving the connection's strength and facilitating quick disassembly. No other components are needed; simply pull the anti-interference protective cover assembly.

[0022] Preferably, the connecting plate is coated with an anti-interference layer.

[0023] Furthermore, it can effectively improve the anti-interference effect.

[0024] Preferably, a transparent plate is fixed to the upper end of the anti-interference protective cover assembly, and the two transparent plates abut against each other.

[0025] Furthermore, it allows for direct observation of the electromagnetic water meter components through the transparent panel.

[0026] The beneficial effects of this invention are: 1. The through-hole facilitates the movement of corresponding components. During actual installation, when the annular grooves on the two anti-interference protective cover assemblies align with the connecting plates, the connecting plates can be inserted into the annular grooves. This allows the annular grooves to press against the extrusion member, the first baffle, and the second baffle, so that the extrusion member presses against the swing rod. To facilitate the rotation of the swing rod, rollers can be added at the contact point between the swing rod and the extrusion member, so that the swing rod can rotate under the pressure of the extrusion member, causing the linkage rod to rotate. This allows subsequent corresponding components to operate in conjunction, completing the contact and fixation of the two anti-interference protective cover assemblies. When the two anti-interference protective cover assemblies contact each other, they can provide a protective effect. 2. The linkage can push the linkage rod to move away from the swing rod. When the linkage rod moves, it will cause the top rod to operate in a vertical state. At the same time, the two telescopic frame structures ensure that the inserted plate will rise and fall stably. The telescopic frame structure consists of a tube and a rod that is slidably installed in the tube, which can ensure the stability of movement. Furthermore, the position of the linkage rod can be initially limited by the limiting mechanism to ensure the stability of the rising position of the inserted plate; 3. Under the action of the lead screw and nut, the lead screw can rotate so that the first connecting hole and the second connecting hole are aligned, and the limiting rod can be inserted into the first connecting hole to further ensure the stability of the position of the bent connecting part; the hemispherical design facilitates insertion and also facilitates removal by mutual compression. 4. The compression spring and corresponding components help to accommodate the deviation of the connecting plate and fully compress the connecting plate, improving the firmness of the connection and facilitating quick disassembly. No other parts are required; simply pull the anti-interference protective cover assembly. 5. Observe the condition of the electromagnetic water meter assembly directly through the transparent panel. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the electromagnetic water meter assembly in this invention; Figure 2 This is a structural diagram of the present invention; Figure 3 This is a top view of the connecting plate and the anti-interference protective cover assembly in this invention; Figure 4 This is a cross-sectional view of the anti-interference protective shield assembly in this invention; Figure 5 This is a cross-sectional structural diagram of the anti-interference protective shield assembly in this invention; Figure 6 This is a structural diagram of the bending connector in this invention; Figure 7 Appendix to this invention Figure 4 Enlarged view of point A; Figure 8 Appendix to this invention Figure 4 Enlarged view of point B; In the diagram: 1 Electromagnetic water meter assembly, 2 Connecting plate, 3 Anti-interference protective cover assembly, 4 Ball bearing, 5 Arc groove, 6 First contact plate, 7 Diagonal rod, 8 Linkage plate, 9 Insertion plate, 10 Compression spring, 11 Second contact plate, 12 Slide rail, 13 First baffle, 14 Extrusion, 15 Bending connector, 16 Second baffle, 17 Through opening, 18 Lead screw, 19 Fixing plate, 20 Limiting rod, 21 First connecting hole, 22 Second connecting hole, 23 Top rod, 24 Elastic telescopic assembly, 25 Lead screw nut, 26 Linkage rod, 27 Swing rod, 28 Tension spring, 29 Linkage rod, 30 Annular groove, 31 Transparent plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Reference Figures 1-8 An assembled electromagnetic water meter with anti-electromagnetic interference function includes an electromagnetic water meter assembly 1, a connecting plate 2 fixed to the lower end of the electromagnetic water meter assembly 1, and anti-interference protective cover assemblies 3 on both sides of the electromagnetic water meter assembly 1. The two anti-interference protective cover assemblies 3 abut against each other and form a box structure. The two ends of the electromagnetic water meter assembly 1 pass through the box structure and extend to both ends of the box structure. The anti-interference protective cover assemblies 3 can be quickly merged so that the two anti-interference protective cover assemblies 3 can protect the electromagnetic water meter assembly 1. Moreover, anti-interference components are set inside the anti-interference protective cover assemblies 3 to facilitate the stable operation of the electromagnetic water meter assembly 1. At the same time, the two anti-interference protective cover assemblies 3 can be quickly disassembled.

[0030] An annular groove 30 is provided at the lower end of the anti-interference shield assembly 3. The annular grooves 30 on the two anti-interference shield assemblies 3 form an annular groove. Bending connectors 15 are installed at the four corners of the annular groove. At the right-angle position of the bending connector 15, an extrusion member 14, a first baffle member 13, and a second baffle member 16 are arranged in sequence. The extrusion member 14, the first baffle member 13, and the second baffle member 16 overlap with the bending connector 15. A pressure-bearing mechanism is provided at the right angle of the bending connector 15. The pressure-bearing mechanism is provided with two linkage rods 29. The two linkage rods 29 are respectively connected to two extrusion mechanisms. An insertion plate 9 is provided on the extrusion mechanism. Both ends of the second baffle member 16 are provided with pressure bearings. The mechanism consists of two insert plates 9 connected to two pressure-bearing mechanisms. Each pressure-bearing mechanism has four ball bearings 4, and each of the four corners of the connecting plate 2 has eight arc-shaped grooves 5. The ball bearings 4 extend into the corresponding arc-shaped grooves 5. During use, the annular groove 30 on the anti-interference shield assembly 3 and the connecting plate 2 correspond to the squeezing member 14, the first baffle 13, and the second baffle 16, which squeeze the connecting plate 2. This allows the squeezing member 14 to drive the corresponding mechanism to operate, facilitating the insertion of the ball bearings 4 into the corresponding arc-shaped grooves 5. This achieves the connection between the anti-interference shield assembly 3 and the connecting plate 2. At the same time, during disassembly, the anti-interference shield assembly 3 can be disassembled by pulling it.

[0031] In this embodiment, the pressure-bearing mechanism includes two through-holes 17 on adjacent sides of the bent connector 15. Two swing rods 27 are rotatably connected to adjacent inner walls of the bent connector 15. The two swing rods 27 pass through the two through-holes 17 respectively. A tension spring 28 is fixed between the swing rods 27 and the inner walls of the bent connector 15. The swing rods 27 and the pressing member 14 abut against each other. A linkage rod 29 is rotatably connected to the swing rods 27. The through-holes 17 facilitate the movement of the corresponding components. Specifically, during actual installation, when the annular grooves 30 and connecting plates 2 on the two anti-interference protective cover assemblies 3 are aligned... Afterwards, the connecting plate 2 can be inserted into the annular groove 30, so that the annular groove 30 can squeeze the extrusion member 14, the first baffle member 13 and the second baffle member 16, so that the extrusion member 14 squeezes the swing rod member 27, which is located in a position that facilitates the rotation of the swing rod member 27. Rollers can be added at the contact position between the swing rod member 27 and the extrusion member 14 so that the swing rod member 27 can be squeezed by the extrusion member 14 and rotate, so that the linkage member 29 rotates; so that the subsequent corresponding components can work together to complete the contact and fixation of the two anti-interference protective cover assemblies 3. When the two anti-interference protective cover assemblies 3 contact, they can achieve a protective effect.

[0032] In this embodiment, the extrusion mechanism includes a linkage rod 26 rotatably connected to one end of the linkage rod 29, a top rod 23 rotatably connected to one end of the linkage rod 26, and the upper end of the top rod 23 rotatably connected to the top of the insertion plate 9. Two telescopic frames are fixed to the top of the insertion plate 9 and are fixed to the inner wall of the insertion plate 9. The insertion plate 9 is through the bending connector 15. A limiting mechanism is provided at one end of the linkage rod 26. The linkage rod 29 can push the linkage rod 26 to move away from the swing rod 27. When the linkage rod 26 moves, the top rod 23 will operate in a vertical state. At the same time, the two telescopic frame structures ensure that the insertion plate 9 will rise and fall stably. The telescopic frame structure consists of a tube and a rod that is slidably installed in the tube, which can ensure the stability of movement. Furthermore, the position of the linkage rod 26 can be initially limited by the limiting mechanism to ensure the stability of the rising position of the inserted plate 9.

[0033] In this embodiment, the limiting mechanism includes a lead screw 18 rotatably connected to one end of the linkage rod 26. A lead screw nut 25 is screwed onto the lead screw 18. The lead screw nut 25 is slidably installed in the bent connector 15. An elastic telescopic component 24 is installed between the lead screw nut 25 and the lead screw 18. Two fixing plates 19 are fixed at the two right-angle ends in the annular groove 30. The bent connector 15 is located between the two fixing plates 19 on the same side. A positioning mechanism is provided on the fixing plate 19, and the positioning mechanism is connected to the lead screw 18. The linkage rod 26 pushes the lead screw 18 and the lead screw nut 25 to move synchronously. When the lead screw nut 25 moves into position, the lead screw 18 passes through the fixing plate 19. At the same time, the lead screw 18 can continue to move under the action of the linkage rod 26.

[0034] In this embodiment, the positioning mechanism includes a limiting rod 20 installed in the fixed plate 19, a first connecting hole 21 on the lead screw 18, and a second connecting hole 22 on the fixed plate 19. The second connecting hole 22 and the first connecting hole 21 are connected. The limiting rod 20 is installed in the second connecting hole 22, and one end of the limiting rod 20 extends into the first connecting hole 21. Under the action of the lead screw nut 25, the lead screw 18 can be rotated so that the first connecting hole 21 and the second connecting hole 22 are aligned, and the limiting rod 20 can be inserted into the first connecting hole 21 to further ensure the stability of the position of the bent connector 15.

[0035] In this embodiment, the end of the lead screw 18 away from the linkage rod 26 is hemispherical, and the end of the limiting rod 20 extending into the lead screw 18 is also hemispherical. The hemispherical shape facilitates insertion and also facilitates removal by mutual compression.

[0036] In this embodiment, the pressure-bearing mechanism includes two linkage plates 8 rotatably connected to the lower end of the second baffle 16. The upper ends of the insertion plate 9 abut against the two linkage plates 8 respectively. The upper ends of the linkage plates 8 are rotatably connected to two inclined rods 7, which are disposed through the second baffle 16. The upper end of the second baffle 16 is provided with a pressure-applying mechanism, which is connected to the two second abutting plates 11. The linkage plates 8 can be deflected by the 9, so that the inclined rods 7 can push the second abutting plates 11 connected to them to move.

[0037] In this embodiment, the pressure applying mechanism includes two first abutment plates 6 slidably mounted on the second baffle plate 16, and two second abutment plates 11 located between the two first abutment plates 6. A slide rail 12 is slidably sleeved on one end of each second abutment plate 11 near the first abutment plate 6. The slide rail 12 is fixedly connected to the annular groove 30. The slide rail 12 is slidably sleeved on the first abutment plate 6. A compression spring 10 is sleeved on the slide rail 12, located between the second abutment plate 11 and the first abutment plate 6. Both ends of the compression spring 10 are respectively fixed to opposite sides of the second abutment plate 11 and the first abutment plate 6. The inclined rod 7 at the same end is rotatably connected. During actual production, the staff can push the two linkage plates 8 to separate and rotate by inserting the plate 9, so that the inclined rod 7 can push the first abutting plate 6 to move, and the two first abutting plates 6 can move relative to each other. The first abutting plate 6 can squeeze the second abutting plate 11 through the compression spring 10, so that the second abutting plate 11 can drive the ball ball 4 to insert into the corresponding arc-shaped groove 5. At the same time, the compression spring 10 can adapt to the connecting plate 2 with specification errors. Moreover, during disassembly, the anti-interference protective cover assembly 3 is pulled out and squeezed, so that the ball ball 4 can be removed from the arc-shaped groove 5 to complete the disassembly.

[0038] In this embodiment, the connecting plate 2 is coated with an anti-interference layer; this can effectively improve the anti-interference effect, and a suitable coating can be selected according to the site conditions to ensure the anti-interference effect.

[0039] In this embodiment, a transparent plate 31 is fixed to the upper end of the anti-interference protective cover assembly 3, and the two transparent plates 31 abut against each other; the electromagnetic water meter assembly 1 can be directly observed through the transparent plate 31.

[0040] In this invention, during use, the annular groove 30 on the anti-interference protective cover assembly 3 and the connecting plate 2 correspond to the pressing member 14, the first baffle member 13 and the second baffle member 16 pressing against the connecting plate 2, so that the pressing member 14 can drive the corresponding mechanism to operate, making it easy for the ball member 4 to be inserted into the corresponding arc-shaped groove 5, thereby realizing the connection between the anti-interference protective cover assembly 3 and the connecting plate 2. The two anti-interference protective cover assemblies 3 are in contact with each other, and the situation of the electromagnetic water meter assembly 1 can be directly observed through the transparent plate 31; during disassembly, the anti-interference protective cover assembly 3 can be disassembled by pulling it. Linkage rod 29 can push linkage rod 26 to move away from swing rod 27. When linkage rod 26 moves, it will cause top rod 23 to operate in a vertical state. At the same time, the two telescopic frame structures ensure that the insertion plate 9 will rise and fall stably. The telescopic frame structure consists of a tube and rods that are slidably installed in the tube, which can ensure the stability of movement. The linkage rod 26 pushes the lead screw 18 and the lead screw nut 25 to move synchronously. When the lead screw nut 25 moves into place, the lead screw 18 passes through the fixed plate 19. At the same time, the lead screw 18 can continue to move under the action of the linkage rod 26. The hemispherical design of the lead screw 18 and the limiting rod 20 facilitates insertion and also facilitates mutual compression for removal. Under the action of the lead screw nut 25, the lead screw 18 can be rotated so that the first connecting hole 21 and the second connecting hole 22 are aligned, and the limiting rod 20 can be inserted into the first connecting hole 21 to further ensure the stability of the position of the bent connecting piece 15. The linkage plate 8 can be deflected by 9, so that the inclined rod 7 can push the second abutting plate 11 connected to it to move. The operator can push the two linkage plates 8 to separate and rotate by inserting plate 9, so that the inclined rod 7 can push the first abutting plate 6 to move, so that the two first abutting plates 6 can move relative to each other, so that the first abutting plate 6 can squeeze the second abutting plate 11 through the compression spring 10, so that the second abutting plate 11 can drive the ball 4 to insert into the corresponding arc-shaped groove 5. At the same time, the compression spring 10 can accommodate the connecting plate 2 with specification errors. Moreover, during disassembly, the anti-interference protective cover assembly 3 can be pulled out and squeezed, so that the ball 4 can be removed from the arc-shaped groove 5 to complete the disassembly.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated electromagnetic water meter with anti-electromagnetic interference function, comprising an electromagnetic water meter assembly (1), characterized in that: The lower end of the electromagnetic water meter assembly (1) is fixed with a connecting plate (2). Both sides of the electromagnetic water meter assembly (1) are provided with anti-interference protective cover assemblies (3). The two anti-interference protective cover assemblies (3) abut against each other and form a box structure. The two ends of the electromagnetic water meter assembly (1) pass through the box structure and extend to both ends of the box structure. An annular groove (30) is provided at the lower end of the anti-interference shield assembly (3). The annular grooves (30) on the two anti-interference shield assemblies (3) form an annular groove. A bending connector (15) is installed at each of the four corners of the annular groove. An extrusion member (14), a first baffle member (13), and a second baffle member (16) are arranged sequentially at the right-angle position of the bending connector (15). The extrusion member (14), the first baffle member (13), and the second baffle member (16) overlap with the bending connector (15). 5) A pressure-bearing mechanism is provided at the right angle. The pressure-bearing mechanism is provided with two linkage rods (29). The two linkage rods (29) are respectively connected to two extrusion mechanisms. The extrusion mechanism is provided with an insertion plate (9). Both ends of the second baffle (16) are provided with pressure-bearing mechanisms. The two insertion plates (9) are respectively connected to the two pressure-bearing mechanisms. The pressure-bearing mechanism is provided with four ball bearings (4). The four corners of the connecting plate (2) are provided with eight arc-shaped grooves (5). The ball bearings (4) extend into the corresponding arc-shaped grooves (5).

2. The assembled electromagnetic water meter with anti-electromagnetic interference function according to claim 1, characterized in that: The pressure-bearing mechanism includes two through-holes (17) on adjacent sides inside the bending connector (15). Two swing rods (27) are rotatably connected to two adjacent inner walls inside the bending connector (15). The two swing rods (27) pass through the two through-holes (17) respectively. A tension spring (28) is fixed between the swing rod (27) and the inner wall of the bending connector (15). The swing rod (27) and the pressing member (14) abut against each other. The linkage rod (29) is rotatably connected to the swing rod (27).

3. The assembled electromagnetic water meter with anti-electromagnetic interference function according to claim 1, characterized in that: The extrusion mechanism includes a linkage rod (26) rotatably connected to one end of the linkage rod (29), and a top rod (23) rotatably connected to one end of the linkage rod (26). The upper end of the top rod (23) is rotatably connected to the top of the insert plate (9). Two telescopic frames are fixed to the top of the insert plate (9). The two telescopic frames are fixed to the inner wall of the insert plate (9). The insert plate (9) is through the bending connector (15). One end of the linkage rod (26) is provided with a limiting mechanism.

4. The assembled electromagnetic water meter with anti-electromagnetic interference function according to claim 3, characterized in that: The limiting mechanism includes a lead screw (18) rotatably connected to one end of the linkage rod (26), a lead screw nut (25) screwed onto the lead screw (18), the lead screw nut (25) being slidably installed in the bending connector (15), and an elastic telescopic component (24) being installed between the lead screw nut (25) and the lead screw (18). Two fixing plates (19) are fixed at the two right-angle ends in the annular groove (30), and the bending connector (15) is located between the two fixing plates (19) on the same side. A positioning mechanism is provided on the fixing plate (19), and the positioning mechanism is connected to the lead screw (18).

5. The assembled electromagnetic water meter with anti-electromagnetic interference function according to claim 4, characterized in that: The positioning mechanism includes a limiting rod (20) installed in a fixed plate (19). A first connecting hole (21) is provided on the lead screw (18), and a second connecting hole (22) is provided on the fixed plate (19). The second connecting hole (22) and the first connecting hole (21) are connected. The limiting rod (20) is installed in the second connecting hole (22), and one end of the limiting rod (20) extends into the first connecting hole (21).

6. The assembled electromagnetic water meter with anti-electromagnetic interference function according to claim 5, characterized in that: The end of the lead screw (18) away from the linkage rod (26) is hemispherical, and the end of the limiting rod (20) extending into the lead screw (18) is hemispherical.

7. The assembled electromagnetic water meter with anti-electromagnetic interference function according to claim 1, characterized in that: The pressure-bearing mechanism includes two linkage plates (8) rotatably connected to the lower end of the second baffle (16). The upper ends of the insertion plate (9) abut against the two linkage plates (8) respectively. The upper ends of the linkage plates (8) are rotatably connected to two inclined rods (7). The inclined rods (7) are through the second baffle (16). The upper end of the second baffle (16) is provided with a pressure-applying mechanism. The pressure-applying mechanism is connected to the two second abutting plates (11).

8. A prefabricated electromagnetic water meter with anti-electromagnetic interference function according to claim 7, characterized in that: The pressure-applying mechanism includes two first abutment plates (6) slidably mounted on the second baffle plate (16), two second abutment plates (11) located between the two first abutment plates (6), a slide rail (12) is slidably sleeved on one end of the second abutment plate (11) near the first abutment plate (6), the slide rail (12) is fixedly connected to the annular groove (30), the slide rail (12) is slidably sleeved on the first abutment plate (6), a compression spring (10) is sleeved on the slide rail (12), the compression spring (10) is located between the second abutment plate (11) and the first abutment plate (6), the two ends of the compression spring (10) are respectively fixed on the opposite side of the second abutment plate (11) and the first abutment plate (6), and the first abutment plate (6) and the inclined rod (7) at the same end therewith are rotatably connected.

9. The assembled electromagnetic water meter with anti-electromagnetic interference function according to claim 1, characterized in that: The connecting plate (2) is coated with an anti-interference layer.

10. A prefabricated electromagnetic water meter with anti-electromagnetic interference function according to claim 1, characterized in that: The upper end of the anti-interference protective cover assembly (3) is fixed with a transparent plate (31), and the two transparent plates (31) abut against each other.

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