Magnetic steel assembly for a counter

Abstract

The application discloses a magnetic steel assembly of a counter, relates to the technical field of the counter, and comprises a magnetic steel base provided with a mounting cavity with an opening facing upwards, a single magnetic steel provided with an S pole at one end and an N pole at the other end, and a clamping piece located in the mounting cavity of the magnetic steel base and used for clamping and fixing the single magnetic steel in the magnetic steel base. The application improves the assembly efficiency of the magnetic steel assembly and reduces the assembly complexity and error risk.

Description

Technical Field

[0001] This application relates to the field of counter technology, and in particular to a magnetic steel assembly for a counter. Background Technology

[0002] Currently, mechanical water meters typically use a structure with a mechanical counter to measure flow. In this structure, the rotation of the magnet inside the counter triggers three Hall effect sensors to generate pulse signals, thereby achieving electromechanical conversion and providing counting data for the electronic module.

[0003] In existing technologies, such as Figure 5 , 6 As shown, counters commonly employ a split-type dual-magnet assembly. This assembly consists of two magnets independently mounted within a magnet holder, one magnet having an S pole at one end and an N pole at the other. However, this split-type dual-magnet assembly has the following drawbacks:

[0004] Assembly orientation is prone to errors: Because the two magnets have orientation in terms of magnetization polarity (S pole / N pole) and / or physical shape (e.g., different side lengths of cuboids), it is necessary to strictly identify their correct orientation during the production and assembly process, which makes assembly errors very easy to occur.

[0005] High assembly complexity: Even if the magnet is a symmetrical cube, it is still necessary to identify its magnetization direction (S pole / N pole), which increases the complexity of the assembly operation and the risk of error. Utility Model Content

[0006] To address the issue of errors in magnet assembly, this application provides a magnet assembly for a counter.

[0007] This application provides a magnet assembly for a counter, employing the following technical solution:

[0008] A counter magnet assembly includes: a magnet base having an upward-opening mounting cavity; a single magnet having an S pole at one end and an N pole at the other end; and a clamping member located within the mounting cavity of the magnet base for clamping and fixing the single magnet within the magnet base.

[0009] By adopting the above technical solution and using a single magnet structure, the assembly direction error problem caused by the directional difference in magnetization polarity and / or physical shape of the two independent magnets in the split double magnet assembly is avoided, thereby reducing assembly complexity and error risk and improving production efficiency.

[0010] Optionally, the clamping member includes two symmetrical clamping blocks, one end of which is fixedly connected to the magnet base, and a receiving groove is formed between the two clamping blocks for a single magnet to be inserted. The end of the clamping block away from the magnet base is provided with an anti-detachment block extending toward the receiving groove. The single magnet enters the receiving groove by squeezing and sliding away the anti-detachment block.

[0011] By adopting the above technical solution, two symmetrical clamping blocks form a receiving groove, facilitating the installation and positioning of the single magnet. The anti-detachment block design effectively prevents the single magnet from falling out of the receiving groove after installation, ensuring the structural stability of the magnet assembly.

[0012] Optionally, a reinforcing rib is provided between the clamping block and the mounting cavity.

[0013] By adopting the above technical solution, the reinforcing ribs increase the connection strength between the clamping block and the magnet seat, and improve the long-term stable clamping effect of the clamping component on the single magnet.

[0014] Optionally, two sets of clamping members are symmetrically arranged, and the single magnet is installed in the two sets of clamping blocks.

[0015] By adopting the above technical solution, two sets of symmetrical clamping components (i.e., four clamping blocks) are set up to clamp the single magnet together, which can provide a more uniform and stronger radial clamping force.

[0016] Optionally, the bottom of the magnet base is provided with a connecting sleeve coaxial with the magnet base.

[0017] By adopting the above technical solution, the connecting sleeve provides a standardized installation interface, which enables the entire magnet assembly to be easily and quickly connected to the base of the counter or other components (e.g., by fixing with screws), simplifying the overall assembly process of the counter and improving production efficiency.

[0018] Optionally, the single magnet has a cylindrical structure.

[0019] Optionally, the lower end face of the magnet base has an opening that communicates with the receiving groove.

[0020] By adopting the above technical solution, this application has at least one of the following beneficial effects:

[0021] 1. The use of a single magnet structure to replace the split dual magnet assembly avoids the problem of assembly orientation errors caused by the directionality of the two independent magnets in terms of magnetization polarity and / or physical shape. It eliminates the need to strictly identify the magnet orientation during assembly, significantly reducing assembly complexity and error risk.

[0022] 2. The cylindrical single magnet, combined with the clamping components' reasonable receiving groove and anti-detachment block design, makes the installation of the single magnet convenient, efficient, and stable, further improving assembly efficiency and thus reducing production costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the magnet assembly according to an embodiment of this application;

[0025] Figure 3 This is a cross-sectional view of the magnet base in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of the magnet base in the embodiments of this application;

[0027] Figure 5 This is a schematic diagram of the overall structure of existing technology;

[0028] Figure 6 This is a schematic diagram of the structure of a dual-magnet assembly based on existing technology.

[0029] Explanation of reference numerals in the attached drawings: 1. Magnet base; 11. Mounting cavity; 12. Connecting sleeve; 13. Opening; 2. Single magnet; 3. Clamping component; 31. Clamping block; 32. Anti-disengagement block; 33. Reinforcing rib; 4. Magnet. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a magnet assembly for a counter. (Refer to...) Figure 1 , 2 The magnet assembly includes a magnet base 1, a single magnet 2, and a clamping component 3. The magnet base 1 has an overall disc-shaped structure. Its top has a cylindrical mounting cavity 11 with an opening 13 facing upwards, which is used to accommodate the clamping component 3 and the single magnet 2. A cylindrical connecting sleeve 12 extends coaxially from the bottom of the magnet base 1 for quick positioning and installation with the rotating shaft inside the counter.

[0032] Reference Figure 2 The single magnet 2 has a cylindrical structure with an S pole at one end and an N pole at the other end. The cylindrical structure of the single magnet 2 eliminates the need for direction identification, and the magnetic field direction requirement can be met by any installation direction and angle, further reducing the assembly difficulty.

[0033] Reference Figure 2 The clamping member 3 is set in the mounting cavity 11 to fix the single magnet 2 in the mounting cavity 11 of the magnet base 1, so as to ensure that the magnet can play a stable and reliable role during the operation of the counter.

[0034] Reference Figure 3 , 4 The clamping component 3 includes two symmetrically distributed clamping blocks 31. The clamping blocks 31 can be made of materials such as plastic with elastic deformation capabilities, giving them this ability. One end of each clamping block 31 is fixed to the bottom of the mounting cavity 11, and a receiving groove matching the diameter of the single magnet 2 is formed between the two clamping blocks 31. An anti-detachment block 32 is provided on the inner side of the free end of each clamping block 31, protruding towards the receiving groove. A gap is formed between the two anti-detachment blocks 32, allowing the single magnet 2 to squeeze and slide away the anti-detachment blocks 32 through this gap, and then enter the receiving groove for positioning and fixation.

[0035] To further enhance the connection strength between the clamping component 3 and the magnet base 1, a reinforcing rib 33 is also connected between the clamping block 31 and the mounting cavity 11 to effectively disperse the clamping stress and prevent long-term vibration from causing the root of the clamping block 31 to break.

[0036] Furthermore, the clamping members 3 can be symmetrically arranged in two sets, that is, a total of four clamping blocks 31, with the single magnet 2 installed in the two sets of clamping blocks 31. The two sets of symmetrical clamping members 3 provide a more uniform and robust radial clamping force for the single magnet 2, resulting in a more stable constraint on the single magnet 2 and further improving the installation stability of the single magnet 2. The lower end face of the magnet base 1 has an opening 13 communicating with the receiving groove.

[0037] The implementation principle of the magnet assembly of the counter in this application embodiment is as follows:

[0038] During assembly, the operator aligns the single magnet 2 with the receiving groove formed by the two sets of clamping blocks 31 and applies downward pressure. The bottom of the single magnet 2 contacts the anti-disengagement block 32. As the pressure continues to fall, the clamping blocks 31 are subjected to radial compression and elastically deform outward. When the single magnet 2 is fully inserted into the receiving groove, the clamping blocks 31 spring back to their original position, and the anti-disengagement block 32 snaps onto the top edge of the single magnet 2, forming an axial limit. At this time, the single magnet 2 is tightly covered by the arc-shaped surfaces of the four clamping blocks 31 (two sets), and the clamping force is evenly distributed, preventing the magnet from swaying.

[0039] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A magnet assembly for a counter, characterized in that: include: The magnet base (1) has an upward-facing mounting cavity (11) with an opening (13); A single magnet (2) has an S pole at one end and an N pole at the other end; The clamping member (3) is located in the mounting cavity (11) of the magnet base (1) and is used to clamp and fix the single magnet (2) in the magnet base (1).

2. The magnet assembly of a counter according to claim 1, characterized in that: The clamping member (3) includes two symmetrical clamping blocks (31). One end of the clamping block (31) is fixedly connected to the magnet seat (1). A receiving groove is formed between the two clamping blocks (31) for the single magnet (2) to be inserted. The end of the clamping block (31) away from the magnet seat (1) is provided with a release block (32) extending toward the receiving groove. The single magnet (2) enters the receiving groove by squeezing and sliding the release block (32).

3. The magnet assembly of a counter according to claim 2, characterized in that: A reinforcing rib (33) is connected between the clamping block (31) and the mounting cavity (11).

4. The magnet assembly of a counter according to claim 2, characterized in that: The clamping member (3) is symmetrically arranged in two sets, and the single magnet (2) is installed in the two sets of clamping blocks (31).

5. The magnet assembly of a counter according to claim 1, characterized in that: The bottom of the magnet base (1) is provided with a connecting sleeve (12) that is coaxial with the magnet base (1).

6. The magnet assembly of a counter according to claim 1, characterized in that: The single magnet (2) has a cylindrical structure.

7. The magnet assembly of a counter according to claim 2 or 4, characterized in that: The lower end face of the magnet base (1) is provided with an opening (13) that communicates with the receiving groove.

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