A washing machine hand-throwing assembly water performance test tool

Abstract

The present application relates to the technical field of detection equipment, and especially relates to a washing machine hand-throwing assembly water performance test tool, which comprises a supporting platform, vertical supporting rods are fixedly installed at four corner positions of the supporting platform and face assembly holes of the hand-throwing assembly, the top of the supporting rod is provided with a stepped head capable of being vertically inserted into the assembly hole, a quick connection tool is arranged at the position of an electromagnetic valve body of the hand-throwing assembly, and the quick connection tool can connect the power supply of the power connection part of the electromagnetic valve body and supply water to the water inlet of the electromagnetic valve body. The test tool can quickly and stably support the hand-throwing assembly; the quick connection tool can make the electromagnetic valve body simultaneously complete the power connection and water inlet operation, and additional wiring and threaded connection are not needed, so that the test assembly efficiency is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a testing fixture for the water performance of a washing machine's manual dispensing component. Background Technology

[0002] With the continuous upgrading of household washing machine functions, the impeller structure of washing machines has gradually integrated multi-chamber manual dispensing components for separately dispensing various detergents such as laundry detergent, fabric softener, and disinfectant. Manual dispensing components typically have three independent chambers: left, center, and right. Each chamber achieves independent water injection and drainage through a three-way water valve and spray nozzles, thus completing targeted dispensing and rinsing under different washing programs. In actual production, the water injection performance, spray flow rate, independence between chambers, and water drainage effect of the manual dispensing component directly affect the detergent dissolution efficiency and the user's washing experience. Therefore, a flow test is usually required before the component is installed in the machine to check its spray effect, whether there is cross-flow between chambers, the uniformity of water output from the nozzles, and the sealing reliability of the welded surfaces and interfaces, among other performance indicators.

[0003] Currently, performance testing of manually operated components mostly relies on manual handheld testing or direct whole-machine water testing, which not only lacks testing standards but also makes the testing operation inconvenient. Summary of the Invention

[0004] The purpose of this invention is to solve the problems pointed out in the background art, and to propose a water performance testing fixture for the manual water dispensing component of a washing machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water performance testing fixture for a hand-operated washing machine assembly includes a support platform. Vertically arranged support rods are fixedly installed at the four corners of the support platform, directly opposite the assembly holes of the hand-operated assembly. The top of each support rod has a stepped head that can be vertically inserted into the assembly hole. A quick-connect fixture is provided on the support platform at the position of the solenoid valve body of the hand-operated assembly. The quick-connect fixture can connect the solenoid valve body to the electrical contact part and supply water to the water inlet of the solenoid valve body.

[0007] The support platform is equipped with a vertically arranged transparent tube, the top of which is connected to the drainage section below the hand-throwing component.

[0008] The support platform is surrounded by baffles made of transparent material.

[0009] The support platform has a water storage tank, and a drain valve connected to the water storage tank is located on one side of the support platform.

[0010] The top surface of the support platform is covered with a water-splashing pad.

[0011] The support platform is equipped with outriggers at its bottom, and casters are installed at the bottom of the outriggers.

[0012] The quick-connect tooling includes a base fixed to a support platform. The base has several independent guide grooves located directly below the electrical connection part. Electrical contacts are installed in the guide grooves, and each pair of electrical contacts is connected to the power supply via an electrical switch.

[0013] A vertically arranged first guide rod is installed on the base. A first pressure plate that can slide up and down is installed on the first guide rod. A thrust spring is installed between the top of the first pressure plate and the first guide rod. A positioning groove is opened on the first pressure plate facing the position of the solenoid valve body.

[0014] A second guide rod is horizontally slidably connected to the side of the first pressure plate, and a second pressure plate is fixedly connected to the end of the second guide rod. A tension spring is connected between the second pressure plate and the first pressure plate. A tube is provided at the water inlet position on the side of the second pressure plate opposite to the solenoid valve body. The tube can seal against the water inlet. A water receiving pipe is connected to one side of the tube, and the water receiving pipe is connected to a pressurized water source through a flexible hose.

[0015] The water inlet pipe is equipped with a manual water valve.

[0016] This invention proposes a water performance testing fixture for a washing machine manual dispensing component. The advantages are as follows: The fixture achieves rapid and stable support for the manual dispensing component through the positioning and coordination of the support platform, support rod, and stepped head; the quick-connect fixture allows the solenoid valve body to simultaneously complete power connection and water inlet operations, eliminating the need for additional wiring and threaded connections, significantly improving testing and assembly efficiency. This structure enables the installation, power connection, water supply, and testing of the manual dispensing component in a short time, ensuring the stability and repeatability of test results, reducing human error, and improving the accuracy of water performance testing and production testing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the test state structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the hand-throw component to be tested;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the quick-connect tooling of the present invention;

[0020] Figure 4 This is a top view of the quick-connect tooling structure of the present invention.

[0021] In the diagram: 1. Drain valve; 2. Quick-connect fixture; 3. Hand-operated assembly; 4. Transparent pipe; 5. Stepped head; 6. Support rod; 7. Baffle; 8. Support platform; 9. Outrigger; 10. Caster wheel; 11. Drainage section; 12. Inlet; 13. Solenoid valve body; 14. Electrical connection section; 15. Base; 16. Electrical contact; 17. Guide groove; 18. Electrical switch; 19. First guide rod; 20. Positioning groove; 21. Thrust spring; 22. First pressure plate; 23. Second guide rod; 24. Second pressure plate; 25. Tension spring; 26. Insert pipe; 27. Water inlet pipe; 28. Assembly hole; 29. ​​Manual water valve. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-4 A water performance testing fixture for a hand-operated washing machine assembly includes a support platform 8. Vertically arranged support rods 6 are fixedly installed at the four corners of the support platform 8 directly opposite the assembly holes 28 of the hand-operated assembly 3. The top of the support rods 6 has a stepped head 5 that can be vertically inserted into the assembly holes 28. A quick-connect fixture 2 is provided on the support platform 8 at the position of the solenoid valve body 13 of the hand-operated assembly 3. The quick-connect fixture 2 can connect the power receiving part 14 of the solenoid valve body 13 to electricity and can supply water to the water inlet 12 of the solenoid valve body 13.

[0024] When using this testing fixture for inspection, the operator places the hand-operated assembly 3 on the support platform 8, aligning the mounting hole 28 of the hand-operated assembly 3 with the stepped head 5 at the top of the support rod 6. The stepped head 5 is vertically inserted into the mounting hole 28, thus ensuring that the hand-operated assembly 3 is stably supported on the support platform 8. The quick-connect fixture 2, located directly below the solenoid valve body 13, automatically aligns with the electrical contact part 14 and the water inlet 12 of the solenoid valve body 13 after the hand-operated assembly 3 is in place. By controlling the movement of the quick-connect fixture 2, the operator ensures reliable contact between the electrical contact part 14 of the solenoid valve body 13 and the conductive part of the quick-connect fixture 2, achieving energization; simultaneously, the water inlet connector of the quick-connect fixture 2 seals tightly with the water inlet 12, enabling rapid water supply. During the test, different water paths of the solenoid valve body 13 can be selectively opened by controlling the electrical signal to simulate the multi-channel spraying process of the washing machine in operation. The water output performance of each water path and whether there is crossflow can be observed, thereby completing the water performance test of the hand-operated assembly 3.

[0025] This testing fixture, through the positioning and coordination of the support platform 8, support rod 6, and stepped head 5, achieves rapid and stable support for the hand-operated assembly 3. The quick-connect fixture 2 allows the solenoid valve body 13 to simultaneously complete power connection and water inlet operations, eliminating the need for additional wiring and threaded connections, significantly improving testing and assembly efficiency. This structure enables the installation, power connection, water supply, and testing of the hand-operated assembly 3 in a short time, ensuring the stability and repeatability of test results, reducing human error, and improving the accuracy of water performance testing and production testing efficiency.

[0026] The support platform 8 is equipped with a vertically arranged transparent tube 4, the top of which is connected to the drainage part 11 below the hand-operated dispensing component 3. The transparent tube 4 facilitates observation of the water discharge from the hand-operated dispensing component 3 and prevents water splashing.

[0027] The support platform 8 is equipped with baffles 7 around the water storage tank. The baffles 7 are made of transparent material. The transparent material of the baffles can prevent water from splashing to the outside and also make it easy for workers to observe the water leakage around the hand-operated assembly 3.

[0028] The support platform 8 has a water storage tank, and a drain valve 1 connected to the water storage tank is located on one side of the support platform 8. Water is discharged into the circulating water tank through the drain valve 1.

[0029] The top surface of the support platform 8 is covered with a splash-proof pad to prevent water from splashing.

[0030] The support platform 8 is equipped with support legs 9 at its bottom, and casters 10 are installed at the bottom of the support legs 9 for easy movement.

[0031] The quick-connect fixture 2 includes a base 15 fixed to the support platform 8. The base 15 is located directly below the power receiving part 14 and has several independent guide grooves 17. Electrical contacts 16 are installed in the guide grooves 17, and each pair of electrical contacts 16 is connected to the power supply through an electrical switch 18. A vertically arranged first guide rod 19 is installed on the base 15. A first pressure plate 22 that can slide up and down is installed on the first guide rod 19. A thrust spring 21 is installed between the top of the first pressure plate 22 and the first guide rod 19. A positioning groove 20 is opened on the first pressure plate 22 facing the position of the solenoid valve body 13.

[0032] During testing, the base 15 of the quick-connect fixture 2 is fixed on the support platform 8 to support the power connection and positioning structure of the solenoid valve body 13. Several guide grooves 17 are formed on the upper surface of the base 15, and electrical contacts 16 are installed in each guide groove 17. Each pair of electrical contacts 16 is electrically connected to the power supply via an electrical switch 18. When the operator places the hand-operated assembly 3, the power connection part 14 of the solenoid valve body 13 is pressed down along the guide groove 17, causing the power connection part 14 to abut against the electrical contacts 16, thus achieving electrical connection. By controlling the on / off state of the electrical switch 18, the operating status of each solenoid valve in the solenoid valve body 13 can be individually controlled to simulate different water circuit opening and closing conditions. A first guide rod 19 is installed on the base 15, and a first pressure plate 22 that can slide up and down is fitted on the first guide rod 19. A thrust spring 21 is provided between the top of the first pressure plate 22 and the first guide rod 19, providing a downward elastic preload to the first pressure plate 22. During assembly, the operator lifts the first pressure plate 22 upwards, places the solenoid valve body 13 in, aligns its electrical contact part 14 with the guide groove 17, and then releases the first pressure plate 22. The thrust spring 21 returns to its original state, causing the first pressure plate 22 to press the solenoid valve body 13 downwards, so that it is stably positioned in the positioning groove 20, thereby ensuring reliable contact and stable conductivity between the electrical contact 16 and the electrical contact part 14.

[0033] A second guide rod 23 is horizontally slidably connected to the side of the first pressure plate 22. A second pressure plate 24 is fixedly connected to the end of the second guide rod 23. A tension spring 25 is connected between the second pressure plate 24 and the first pressure plate 22. A tube 26 is provided on the second pressure plate 24 opposite to the water inlet 12 on the side of the solenoid valve body 13. The tube 26 can seal against the water inlet 12. A water inlet pipe 27 is connected to one side of the tube 26. The water inlet pipe 27 is connected to a pressurized water source through a flexible hose. A manual water valve 29 is installed on the water inlet pipe 27.

[0034] During testing, the operator first pulls the second pressure plate 24 outward. Under the pulling force, the second pressure plate 24 drives the second guide rod 23 to slide horizontally, thereby overcoming the elastic force of the tension spring 25 and causing the insertion tube 26 to disengage from the inlet 12 of the solenoid valve body 13. Then, the manual dispensing assembly 3 is placed in position so that the inlet 12 of the solenoid valve body 13 corresponds to the insertion tube 26. The operator releases the second pressure plate 24, and the tension spring 25, during its reset process, drives the second pressure plate 24 and the second guide rod 23 back to their original positions, causing the front end of the insertion tube 26 to seal against the inlet 12, forming a reliable water circuit connection. One side of the insertion tube 26 is connected to a water inlet pipe 27, which is connected to a pressurized water source via a flexible hose. The operator opens the manual water valve 29 installed on the water inlet pipe 27 to introduce pressurized water into the inlet 12 of the solenoid valve body 13, achieving rapid water supply through the quick-connect structure. By combining the aforementioned electric switch 18 to control the opening and closing of different water paths of the solenoid valve body 13, the working state of the washing machine under multi-channel spraying conditions can be simulated, so as to test the water injection performance, spray flow rate and sealing reliability of the manual dispensing component 3.

[0035] As a testing method: Before testing, the operator places the hand-operated assembly 3 on the support platform 8, aligning the mounting hole 28 of the hand-operated assembly 3 with the stepped head 5 at the top of the support rod 6. The stepped head 5 is vertically inserted into the mounting hole 28, providing stable support for the hand-operated assembly 3. The quick-connect fixture 2 set on the support platform 8 is located below the solenoid valve body 13. Its base 15 has a guide groove 17 and an electrical contact 16 structure. When the energized part 14 of the solenoid valve body 13 is pressed down along the guide groove 17, the energized part 14 and the electrical contact 16 abut against each other. By controlling the power supply through the electrical switch 18, the solenoid valves of the solenoid valve body 13 can be opened or closed separately, thereby realizing independent on / off control of multiple water circuits.

[0036] During the clamping process, the operator lifts the first pressure plate 22 upwards, places the solenoid valve body 13 into the positioning groove 20, and then releases it. The thrust spring 21 drives the first pressure plate 22 to reset downwards and press the solenoid valve body 13 firmly, ensuring stable power connection. Subsequently, the operator pulls the second pressure plate 24 outwards, causing the second guide rod 23 to temporarily disengage the insertion tube 26 from the water inlet 12. After the solenoid valve body 13 is in place, the second pressure plate 24 is released, and the tension spring 25 resets, causing the insertion tube 26 to move inwards and seal against the water inlet 12. The insertion tube 26 is connected to the pressurized water source through the water inlet pipe 27, and the manual water valve 29 is used to control the start and stop of water supply. After the operator opens the manual water valve 29, water flows through the water inlet pipe 27 and the insertion tube 26 into the interior of the solenoid valve body 13. By coordinating with the electric switch 18 to control the opening state of different water circuits of the solenoid valve body 13, the actual water usage of the washing machine under multi-cavity spray operation can be simulated.

[0037] During testing, water flows through the hand-operated assembly 3 and then into the transparent pipe 4 via the drain section 11. The operator can visually observe the water flow rate, velocity, and any cross-flow through the transparent pipe 4. Simultaneously, the baffle 7 and splash guard effectively prevent water from splashing outwards. After testing, the test water in the storage tank can be drained into the circulating water tank via the drain valve 1 on one side of the support platform 8 for recycling. The support legs 9 and casters 10 facilitate equipment movement and workstation adjustments.

[0038] 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 technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes to the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention should be covered within the scope of protection of the present invention.

Claims

1. A tooling for testing the water performance of a washing machine's manual dispensing component, characterized in that, The support platform (8) is provided with vertically installed support rods (6) at the four corners of the support platform (8) directly opposite the assembly holes (28) of the hand-feeding component (3). The top of the support rods (6) has a stepped head (5) that can be vertically inserted into the assembly holes (28). The support platform (8) is provided with a quick-connect tool (2) at the position of the solenoid valve body (13) of the hand-feeding component (3). The quick-connect tool (2) can connect the power to the power receiving part (14) of the solenoid valve body (13) and can supply water to the water inlet (12) of the solenoid valve body (13). The quick-connect tooling (2) includes a base (15) fixed on the support platform (8). The base (15) has several independent guide grooves (17) located directly below the power receiving part (14). Electrical contacts (16) are installed in the guide grooves (17). Each pair of electrical contacts (16) is connected to the power supply through an electrical switch (18). The base (15) is equipped with a vertically arranged first guide rod (19), the first guide rod (19) is equipped with a first pressure plate (22) that can slide up and down, a thrust spring (21) is installed between the top of the first pressure plate (22) and the first guide rod (19), and a positioning groove (20) is opened on the first pressure plate (22) facing the position of the solenoid valve body (13). The first pressure plate (22) is horizontally slidably connected to the side of the second guide rod (23), and the end of the second guide rod (23) is fixedly connected to the second pressure plate (24). A tension spring (25) is connected between the second pressure plate (24) and the first pressure plate (22). The second pressure plate (24) is provided with a tube (26) at the water inlet (12) on the side of the solenoid valve body (13). The tube (26) can be sealed and abutted against the water inlet (12). A water receiving pipe (27) is connected to one side of the tube (26). The water receiving pipe (27) is connected to the pressure water source through a hose.

2. The water performance testing fixture for a washing machine manual dispensing component according to claim 1, characterized in that, The support platform (8) is equipped with a vertically arranged transparent tube (4), the top of which is connected to the drainage part (11) below the hand-throwing component (3).

3. The water performance testing fixture for a washing machine manual dispensing component according to claim 1, characterized in that, The support platform (8) is surrounded by baffles (7), which are made of transparent material.

4. The water performance testing fixture for a washing machine manual dispensing component according to claim 1, characterized in that, The support platform (8) has a water storage tank, and a drain valve (1) connected to the water storage tank is located on one side of the support platform (8).

5. The water performance testing fixture for a washing machine manual dispensing component according to claim 1, characterized in that, The top surface of the support platform (8) is covered with a splash-proof pad.

6. The water performance testing fixture for a washing machine manual dispensing component according to claim 1, characterized in that, The support platform (8) is equipped with a support leg (9) at its bottom, and the support leg (9) is equipped with a caster wheel (10) at its bottom.

7. The water performance testing fixture for a washing machine manual dispensing component according to claim 1, characterized in that, The water inlet pipe (27) is equipped with a manual water valve (29).

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