Device for detecting floating ball in water inlet box
By designing a float detection device inside the water inlet box, and using a locking cylinder and locking rod in conjunction with a door magnetic switch to detect the installation direction of the float and the state of the magnet, the problem of the float being installed backwards or the magnet losing its magnetism is solved, ensuring the finished quality of the washing machine's water inlet box.
Patent Information
- Application Number
- CN202520166823.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-24
AI Technical Summary
During the installation of the float ball inside the washing machine's water inlet box, problems such as reverse installation or magnet demagnetization can easily occur, leading to unstable product quality and a lack of effective testing methods.
Design a float detection device for a water inlet box, including a lower fixed base and an upper movable base. By cooperating with a locking cylinder and a locking rod, a magnetic door switch is used to detect the installation direction of the float and the state of the magnet, ensuring that the float is installed correctly.
It enables automatic detection of the float during assembly, ensuring the quality of the finished product and avoiding product failure caused by the float being installed backwards or the magnet losing its magnetism.
Smart Images
Figure CN223897662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water inlet components, specifically a float detection device inside a water inlet box. Background Technology
[0002] Washing machines are common household appliances, and with continuous technological advancements, their functions are becoming increasingly diverse. A water inlet box is installed in the washing machine, containing a float ball with a magnet. The float ball works in conjunction with a magnetic door switch to control water intake, opening, and closing. Because the interaction between the float ball and the magnetic door switch is pre-set, if the float ball is installed backwards or the magnet loses its magnetism, the product will malfunction. During installation, workers frequently install the float ball backwards, and the lack of effective detection methods leads to inconsistent product quality. Summary of the Invention
[0003] To solve the above-mentioned technical problems, this utility model provides a float detection device inside the water inlet box, which can detect the float during the assembly process and ensure the quality of the finished product after assembly.
[0004] The technical solution is as follows: A float detection device inside a water inlet box, characterized in that it includes a lower fixed base and an upper movable base. A lower positioning block is installed on the lower fixed base, and a lower positioning groove is opened on the lower positioning block. A magnetic door switch is installed in the lower positioning groove. An upper positioning block is installed on the upper movable base, and an upper positioning groove is opened on the upper positioning block. Locking cylinders are installed on the sides of both the lower fixed base and the upper movable base, and a locking rod is installed on the piston rod of the locking cylinder.
[0005] A further feature is that the locking cylinder is respectively provided on both sides of the upper positioning block;
[0006] Both the upper positioning block and the lower positioning block have through holes through which the locking rod passes.
[0007] After adopting this utility model, the upper and lower boxes of the water inlet box are respectively installed into the lower fixed base and the upper movable base for assembly. Since a door magnetic switch is installed in the lower positioning groove of the lower positioning block, when the float is properly installed and falls to the bottom of the box, it can be detected by the door magnetic switch. When the float is installed in reverse or the magnet is demagnetized, the door magnetic switch cannot detect it, thus completing the detection of the float. After assembly, the quality of the finished product can be ensured. Attached Figure Description
[0008] Figure 1 This is a first-person perspective schematic diagram of the present invention;
[0009] Figure 2 This is a second-view schematic diagram of the present invention;
[0010] Figure 3 This is a top view of the lower fixed base.
[0011] Figure 4 This is a bottom view of the upper movable seat;
[0012] Figure 5 This is a schematic diagram of the water inlet box;
[0013] Figure 6 This is a schematic diagram of the detection circuit for a magnet and a magnetic door switch. Detailed Implementation
[0014] See Figures 1 to 5 As shown, a float detection device for a water inlet box includes a lower fixed base 1 and an upper movable base 2. A lower positioning block 3 is installed on the lower fixed base 1, and a lower positioning groove 4 is opened on the lower positioning block 3. A magnetic door switch 5 is installed in the lower positioning groove 4. An upper positioning block 6 is installed on the upper movable base 2, and an upper positioning groove 7 is opened on the upper positioning block 6. Locking cylinders 8 are installed on the sides of both the lower fixed base 1 and the upper movable base 2. Locking cylinders 8 are respectively provided on both sides of the upper positioning block 6. A locking rod 9 is installed on the piston rod of the locking cylinder 8. Both the upper positioning block 6 and the lower positioning block 3 have through holes through which the locking rod 9 passes. After passing through the through holes, the locking rod 9 is used to pass through the through holes on the water inlet box 10 or other components, or it can be used to press down on the water inlet box to fix it and prevent it from falling off.
[0015] The float has a magnet at its lower part. When assembling the float, first insert the upper and lower boxes of the water inlet box 10 into the upper positioning groove 7 of the upper positioning block 6 and the lower positioning groove 4 of the lower positioning block 3, respectively. Then, the locking cylinder 8 drives the locking rod 9 to fix the water inlet box. Insert the float along the mounting post inside the lower box of the water inlet box 10. The float will contact the bottom of the box under its own weight. At this time, the distance between the magnet and the door magnetic switch 5 is within the set range. The indicator light and buzzer will work, indicating that the magnet on the float has not been demagnetized and the installation direction is correct. At this time, the next step can be carried out, and the upper box can be inserted. Welded together with the lower box, the finished product is obtained. If the magnet on the float is demagnetized, or the float is installed backwards, the position of the magnet changes, increasing the distance from the magnetic door switch, and it is no longer within the magnetic door switch's sensing range. In this case, the indicator light and buzzer will not work, indicating a problem with the float installation. It can be removed, flipped, and reinstalled. If the indicator light and buzzer work, it means the first installation was backwards, and you can continue to the next step. If it still does not work, the float is faulty and needs to be replaced with a new float. The schematic diagram of the detection circuit of the magnet and the magnetic door switch is shown below. Figure 6 As shown.
Claims
1. A float detection device for a water inlet box, characterized in that, It includes a lower fixed base and an upper movable base. A lower positioning block is installed on the lower fixed base, and a lower positioning groove is opened on the lower positioning block. A door magnetic switch is installed in the lower positioning groove. An upper positioning block is installed on the upper movable base, and an upper positioning groove is opened on the upper positioning block. Locking cylinders are installed on the sides of both the lower fixed base and the upper movable base, and a locking rod is installed on the piston rod of the locking cylinder.
2. The float detection device inside the water inlet box according to claim 1, characterized in that, The locking cylinders are respectively provided on both sides of the upper positioning block.
3. The float detection device inside the water inlet box according to claim 1, characterized in that, Both the upper positioning block and the lower positioning block have through holes through which the locking rod passes.