Head shaking testing device for household electrical appliance

Abstract

The utility model discloses a head shaking test device for a household appliance, and the device is characterized in that a lead screw sliding block of a height adjustment assembly is provided with a sliding hole, so that the lead screw sliding block is sleeved on a lead screw through the sliding hole; a first mounting hole is formed in the middle of the lifting bottom plate, so that the lifting bottom plate is fixedly connected with the screw rod sliding block through the first mounting hole; a second mounting hole is formed in the top of the frame, so that one end of the controller penetrates through the second mounting hole to be connected with one end of the lead screw, and the other end of the lead screw is arranged at the bottom of the frame; an installation rod of the rotating assembly is installed on the lifting bottom plate, a commutator is installed at the position, close to one end, of the installation rod, the input end of the commutator is connected with a servo motor, the two output ends of the commutator are connected with a first speed reducer and a second speed reducer, and an output shaft of the first speed reducer and an output shaft of the second speed reducer are both connected with a clamping mechanism. The test assembly comprises a power supply module which is arranged below the clamping mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a shaking head testing device for household appliances. Background Art

[0002] At present, household appliances may have various problems due to the shaking motion during use, such as noise, vibration, wear, etc., which will affect the performance and life of the appliance. Therefore, this test method can simulate the shaking motion that may occur in household appliances during use, and test the shaking durability of the appliance to ensure the quality and reliability of the product.

[0003] At present, the household appliance shaking head durability test equipment industry generally has the following problems:

[0004] 1. Insufficient test accuracy and stability: After long-term use, some test equipment may affect the test accuracy and stability due to wear, aging, etc., resulting in inaccurate test results.

[0005] 2. Low level of equipment automation and intelligence: Although some equipment has achieved automation and intelligence, some equipment still has low level of automation and intelligence and requires manual operation and intervention, which not only affects the test efficiency but may also introduce human errors.

[0006] 3. Inconsistent testing standards: Since testing equipment produced by different manufacturers have differences in testing methods and standards, the test results may be inconsistent, thus affecting the quality and reliability of the product.

[0007] In view of the problems in the related technology, the utility model provides a shaking head test device for household appliances. Utility Model Content

[0008] The utility model aims to provide a shaking head testing device for household appliances in view of the defects of the prior art.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A household appliance shaking head testing device comprises a frame, a rotating component arranged in the frame, a height adjustment component, and a testing component;

[0011] The height adjustment assembly includes a lifting base plate, a screw rod, a screw rod slider, and a controller. The screw rod slider is provided with a sliding hole adapted to the screw rod, so that the screw rod slider is sleeved on the screw rod through the sliding hole and is movably connected to the screw rod; a first mounting hole adapted to the screw rod slider is provided in the middle of the lifting base plate, so that the lifting base plate is fixedly connected to the screw rod slider through the first mounting hole; a second mounting hole adapted to one end of the controller is provided at the top of the frame, so that the controller is arranged at the top of the frame and one end of the controller is connected to one end of the screw rod through the second mounting hole, and the other end of the screw rod is arranged at the bottom of the frame;

[0012] The rotating assembly includes a mounting rod, a servo motor, a commutator, a first reducer, a second reducer, and a clamping mechanism; the mounting rod is vertically mounted on the lifting base plate, the first reducer and the second reducer are respectively mounted on both ends of the mounting rod, the commutator is fixedly mounted at a position close to one end of the mounting rod, and the input end of the commutator is connected to the servo motor, the two output ends of the commutator are respectively connected to the first reducer and the second reducer, the output shaft of the first reducer and the output shaft of the second reducer are both connected to the clamping mechanism, and the clamping mechanism is used to clamp the electrical appliance;

[0013] The test assembly includes a power module, which is arranged below the clamping mechanism and fixedly installed at the bottom of the frame. The electrical appliance clamped on the clamping mechanism is electrically connected to the power module.

[0014] Furthermore, the height adjustment assembly also includes a guide rod and a guide seat, one end of the guide rod is connected to the top of the frame, and the other end of the guide rod is connected to the bottom of the frame; a guide hole compatible with the guide rod is opened on the guide seat, so that the guide seat can be mounted on the guide rod through the guide hole; third mounting holes compatible with the guide seat are opened at the four corners of the lifting base plate, so that the lifting base plate is fixedly connected to the guide seat through the third mounting holes.

[0015] Furthermore, the height adjustment component also includes an upper limiter, a lower limiter, an upper limiter sensor adapted to the upper limiter, and a lower limiter sensor adapted to the lower limiter. The upper limiter and the lower limiter are both arranged in the frame, the upper limiter sensor is arranged on the lifting base plate on the same side as the upper limiter, and the lower limiter sensor is arranged on the lifting base plate on the same side as the lower limiter.

[0016] Furthermore, the rotating assembly includes a coupling and a connecting rod; the input end of the commutator is connected to the servo motor through a coupling, one output end of the commutator is connected to the first reducer through a coupling, and the other output end of the commutator is connected to the second reducer through the cooperation of the connecting rod and the coupling.

[0017] Furthermore, proximity switches are provided on both sides of the output shaft of the first reducer.

[0018] Furthermore, an origin detection block is sleeved on the connecting rod, and an origin detection sensor is also provided on one side of the origin detection block.

[0019] Furthermore, the clamping mechanism includes a clamping bracket, a fixed rod, a positive and negative threaded rod, a movable block, and a clamping block. The top of the clamping bracket is connected to the output shaft, and the two side surfaces of the clamping bracket are connected to the movable block through the fixed rod and the positive and negative threaded rods, and the movable block is also connected to the clamping block.

[0020] Furthermore, two ends of the positive and negative threaded rods pass through two side surfaces of the clamping bracket and are connected to nuts.

[0021] Furthermore, it also includes a measurement and control system, which includes a control module and a touch screen connected to the control module. The control module is arranged in the frame, and the touch screen is installed on the surface of the frame.

[0022] Furthermore, the power module is connected to the control module.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The utility model provides a special device for measuring the life of household fans, heaters, etc., and the device has six groups of stations to test six groups of the same samples at the same time, and can also test three groups of different samples at the same time in groups of two. According to the standard requirements, the swing angle, test speed, and test times can be set by yourself. After the test is completed, it will automatically stop, and the height of the test axis of the equipment can be adjusted according to the height of different test samples.

[0025] 2. The utility model is characterized in that it can simultaneously meet the testing requirements of household shaking devices of different heights and sizes. It also has its own power supply, which can meet the requirements of different voltage levels and frequencies. The following will be explained in the form of pictures and texts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a household appliance shaking head testing device provided in Example 1;

[0027] Figure 2 is a cross-sectional view of a frame provided in the first embodiment;

[0028] Figure 3 is a schematic diagram of an operation component provided in Example 1;

[0029] Figure 4 is a schematic diagram of a set of operating components provided in Example 1;

[0030] Figure 5 is a schematic diagram of a height adjustment component provided in Embodiment 1;

[0031] Figure 6 is a schematic diagram of a screw slider provided in Embodiment 1;

[0032] Figure 7 This is a schematic diagram of a lifting base plate provided in the first embodiment;

[0033] Figure 8 is a schematic diagram of a rotating assembly provided in Embodiment 1;

[0034] Fig. 9 is a schematic diagram of a rotating assembly provided in Embodiment 1;

[0035] Fig.10 is a schematic diagram of the clamping mechanism provided in Example 1;

[0036] Fig.11 is a schematic diagram of the clamping mechanism provided in Example 1;

[0037] Fig.12 is a schematic diagram of a fixing base provided in Embodiment 1;

[0038] Among them, 1. frame; 11. first mounting hole; 2. height adjustment assembly; 21. lifting base plate; 211. third mounting hole; 212. fourth mounting hole; 22. screw rod; 23. screw rod slider; 231. second mounting hole; 24. controller; 25. guide rod; 26. guide seat; 27. upper limiter; 28. lower limiter; 29. ​​upper limiter sensor; 30. lower limiter sensor; 3. rotating assembly; 31. mounting rod; 32. servo Motor; 33. Commutator; 34. First reducer; 341. Reducer output shaft; 35. Second reducer; 36. Coupling; 37. Connecting rod; 38. Proximity switch; 39. Origin detection block; 40. Origin detection sensor; 4. Test assembly; 5. Clamping mechanism; 51. Clamping bracket; 52. Fixed seat; 521. Fifth mounting hole; 53. Fixed rod; 54. Positive and negative threaded screw; 55. Moving block; 56. Mounting block; 57. Clamping block. DETAILED DESCRIPTION

[0039] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0040] The utility model aims to provide a shaking head testing device for household appliances in view of the defects of the prior art.

[0041] Embodiment 1

[0042] This embodiment provides a household appliance shaking head test device, such as Figure 1-12 As shown, it includes a frame 1, a height adjustment component 2 arranged in the frame 1, a rotating component 3, a testing component 4, and a measurement and control system.

[0043] The frame 1 is composed of a main board, a back board, two side boards, a bottom board and a top board, which are connected by welding or threading to form a square frame structure; the interior of the square frame structure is divided into a control space and an operating space by a partition, the measurement and control system is installed in the control space, and the height adjustment component 2, the rotation component 3 and the test component 4 are installed in the operating space.

[0044] The main board and back board of the square frame structure are equipped with openable / closable doors to facilitate maintenance of the internal equipment; the two side boards and partitions are made of glass to facilitate observation of the operation of the internal equipment; the bottom plate and top plate are made of support plate structure to provide support for the internal equipment; multiple support frames are also provided inside the square frame structure to provide installation space and support for the internal equipment, and the specific support frame settings can be set according to actual conditions.

[0045] The operating space shown in this embodiment is provided with three groups of identical operating structures, each group of operating structures includes a height adjustment component 2, a rotation component 3, and a test component 4; it should be noted that the operating structures arranged in the operating space can be set according to actual conditions and are not limited to the number shown in this embodiment. This embodiment is specifically described with one group of operating structures.

[0046] The height adjustment assembly 2 includes a lifting base plate 21 , a screw rod 22 , a screw rod slider 23 , a controller 24 , four guide rods 25 , four guide seats 26 , an upper limiter 27 , a lower limiter 28 , an upper limiter sensor 29 , and a lower limiter sensor 30 .

[0047] The four guide rods 25 are all arranged in the operating space to enclose the operating space of the current operating structure through the four guide rods 25; one end of each guide rod 25 is fixedly connected to the top of the frame 1 through a linear bearing seat (SHF16_KBS) by means of threads or the like, and the other end of each guide rod 25 is fixedly connected to the support frame near the bottom of the frame 1 through a linear bearing seat (SHF16_KBS).

[0048] A T-shaped guide seat 26 is sleeved on each of the four guide rods 25 , so that the guide seat 26 is installed on the corresponding guide rod 25 and can also perform lifting motion along the guide rod 25 .

[0049] The controller 24 can be a high-speed adjustment motor. The controller 24 is arranged on the top of the frame 1, specifically, on the top of the frame 1 near the middle of the space enclosed by the four guide rods 25, and a first mounting hole 11 adapted to the transmission shaft of the controller 24 is opened on the top of the frame 1, so that the transmission shaft of the controller 24 passes through the first mounting hole 11 and is fixedly connected to the screw rod 22, so that the controller 24 drives the screw rod 22 to rotate when working.

[0050] The screw rod 22 is a rod-shaped structure with unidirectional threads. One end of the screw rod 22 is fixedly connected to the transmission shaft of the controller 24 through a bearing (KFL004), and the other end of the screw rod 22 is connected to a support frame near the bottom of the frame 1 through a bearing (KFL004). The screw rod 22 can rotate in the bearing and will not disengage.

[0051] The screw slider 23 is a T-shaped structure, and a second mounting hole 231 adapted to the screw rod 22 is opened in the screw slider 23, and a slider thread adapted to the screw rod thread is provided in the second mounting hole 231, so that the screw slider 23 is sleeved on the screw rod 22 and is threadedly connected to the screw rod 22, so that when the screw rod 22 rotates, the screw slider is driven to move up and down.

[0052] A third mounting hole 211 is provided in the middle of the lifting base plate 21 to match the screw slider 23, so that one end of the T-shaped screw slider 23 passes through the third mounting hole 211, and the other end is arranged on the top of the lifting base plate 21, and then the screw slider 23 is fixedly connected to the lifting base plate by means of threads or the like;

[0053] The four corners of the lifting base plate 21 are also provided with fourth mounting holes 212 adapted to the guide seat 26, so that one end of the T-shaped guide seat 26 passes through the fourth mounting hole 212, and the other end is arranged at the bottom of the lifting base plate 21, and then the guide seat 26 and the lifting base plate 21 are fixedly connected by threads or the like.

[0054] The upper limiter 27 is set at a position close to the top of the frame 1 by means of threads or the like, specifically on a support frame of the frame 1 close to one of the guide rods 25, thereby limiting the rising height of the lifting base plate 21; the lower limiter 28 is set at a position close to the middle and lower part of the frame 1 by means of threads or the like, specifically on a support frame of the frame 1 close to a guide rod adjacent to one of the guide rods 25, thereby limiting the descending position of the lifting base plate 21.

[0055] An upper limit switch sensor 29 is provided below the upper limit switch 27, and one side of the upper limit switch sensor 29 is connected to an L-shaped first fixing bracket by means of screws or the like, and the first fixing bracket is also fixedly installed on the lifting base plate 21 by means of threads or the like, so that the upper limit switch 29 senses the upper limit switch 27 to limit the rising height; a lower limit switch sensor 30 is provided below the lower limit switch 28, and one side of the lower limit switch sensor 30 is connected to an L-shaped second fixing bracket by means of screws or the like, and the second fixing bracket is also fixedly installed on the lifting base plate 21 by means of threads or the like, so that the lower limit sensor 30 senses the lower limit switch 28 to limit the descending height.

[0056] The rotating assembly 3 includes two mounting rods 31 , a servo motor 32 , a commutator 33 , a first reducer 34 , a second reducer 35 , a coupling 36 , a connecting rod 37 , two proximity switches 38 , an origin detection block 39 , an origin detection sensor 40 , and a clamping mechanism 5 .

[0057] The two mounting rods 31 are both aluminum profiles, and the sides, tops, and bottoms of the first and second aluminum profiles are provided with mounting grooves. The middle positions of the first and second aluminum profiles are vertically arranged with the top of the lifting base plate 31 through threads or the like, and are respectively arranged on both sides of the screw rod 22.

[0058] The first reducer 34 and the second reducer 35 are both 90° reducers, and the first reducer 34 and the second reducer 35 are respectively arranged at the two ends of the first aluminum profile and the second aluminum profile; a first fixing plate is provided below the first reducer 34 by means of threads or the like, and the two sides of the first fixing plate are respectively fixedly connected to the side mounting grooves of the first aluminum profile and the second aluminum profile by means of threads or the like; a second fixing plate is provided below the second reducer 35 by means of threads or the like, and the two sides of the second fixing plate are respectively fixedly connected to the side mounting grooves of the first aluminum profile and the second aluminum profile by means of threads or the like.

[0059] The first reducer 34 and the second reducer 35 are both provided with a reducer output shaft 341 , and the bottom of the reducer output shaft 341 is connected to a clamping mechanism 5 .

[0060] The commutator 33 is a cross commutator, which is arranged on a side close to the first reducer 34, and a third fixing plate is provided below the commutator 33 by means of threads or the like, and the third fixing plate is fixedly connected to the top mounting groove of the first aluminum profile by means of threads or the like.

[0061] The servo motor 32 is arranged on one side of the commutator 33, and a fourth fixing plate is provided on the side of the servo motor 32 by means of threads or the like, and the fourth fixing plate is fixedly connected to the side mounting groove of the second aluminum profile by means of threads or the like.

[0062] The transmission shaft of the servo motor 32 is fixedly connected to the input end of the commutator 33 through a coupling 36, one output end of the commutator 33 is fixedly connected to the transmission shaft of the first reducer 34 through a coupling 36, the other output end of the commutator 33 is fixedly connected to one end of a connecting rod 37 through a coupling 36, and the other end of the connecting rod 37 is fixedly connected to the transmission shaft of the second reducer 35 through a coupling 36, so that the servo motor 32 drives the commutator 33 to perform forward and reverse motion, and then the commutator 33 drives the reducer output shafts 341 of the first reducer 34 and the second reducer 35 to perform forward and reverse motion, and the reducer output shaft 341 drives the clamping mechanism 5 to rotate left and right, thereby realizing a simulation test of the shaking head of a household appliance.

[0063] The two proximity switches 38 are respectively arranged on both sides of the reducer output shaft 341 of the first reducer 34, wherein a fourth fixing plate is provided on the outer sleeve of one of the proximity switches, and one end of the fourth fixing plate is fixedly connected to the top mounting groove of the first aluminum profile by means of threads or the like; a fifth fixing plate is sleeved on the top of the first reducer 34, and one end of the fifth fixing plate is fixedly installed on the first reducer 34 by means of threads or the like, and the other end of the fifth fixing plate is sleeved on the other proximity switch 38, so that the two proximity switches 38 are fixed on both sides of the reducer output shaft 341.

[0064] An origin detection block 39 is sleeved on the connecting rod 37 near the middle, and an origin detection sensor 40 is provided on one side of the origin detection block 39. The origin sensor is mounted with a sixth fixing plate by means of threads or the like, and one end of the sixth fixing plate is also fixedly connected to the top mounting groove of the first aluminum profile by means of threads or the like; the origin detection block 39, the origin detection sensor 40 cooperate with the proximity switch 38 to locate the rotation angle of the clamping mechanism 5 relative to the position of the origin detection block 39.

[0065] The clamping mechanism 5 includes a clamping bracket 51 , a fixing seat 52 , two fixing rods 53 , a positive and negative threaded rod 54 , two moving blocks 55 , two mounting blocks 56 , and two clamping blocks 57 .

[0066] The clamping bracket 51 includes an integrally formed horizontal plate and side plates arranged at both ends of the horizontal plate. An opening matched with the T-shaped fixing seat 52 is opened in the middle of the horizontal plate, so that one end of the T-shaped fixing seat 52 passes through the opening and the other end of the fixing seat is fixedly connected to the bottom of the horizontal plate by means of threads or the like; a fifth mounting hole 521 matched with one end of the reducer output shaft 341 is opened in the fixing seat 52, so that the fixing seat 52 is sleeved on the reducer output shaft 341 through the fifth mounting hole 521, and can be fixedly connected with the reducer output shaft 341 by means of interference fit, so that the reducer output shaft 341 can drive the clamping bracket 51 to rotate left and right when the reducer output shaft 341 rotates forward and reversely.

[0067] The structures arranged in the two side plates of the clamping bracket 51 are completely the same, and this embodiment is described with reference to the structure of one side.

[0068] The moving block 55 is arranged on the inner side of the side plate of the clamping bracket 51, and openings compatible with the two fixed rods 53 are opened on both ends of the moving block 55, so that one end of the two fixed rods 53 can pass through the opening, and grooves corresponding to the opening position of the moving block 55 and compatible with the two fixed rods 53 are opened on the side plate of the clamping bracket 51, so that the two fixed rods 53 can pass through the opening of the moving block 55 and be fixed in the groove by means of threads or the like.

[0069] Openings that match the forward and reverse screw rods 54 are provided in the middle position of the moving block 55 and the middle position of the side plate of the clamping bracket 51, so that one end of the forward and reverse screw rods 54 can pass through the middle opening of the moving block 55 and the middle opening of the side plate in sequence, and then be fixedly connected with the external direct pin knurled nut; and threads that match the threads of the forward and reverse screw rods 54 are provided in the opening in the middle of the moving block 55, so that when the user rotates the direct pin knurled nut, the forward and reverse screw rods 54 are driven to rotate, and then the forward and reverse screw rods 54 drive the moving block 55 to move along the fixed rod 53.

[0070] A mounting block 56 is fixedly connected to the movable block 55 near the bottom (i.e., below the fixed rod 53 and the forward and reverse threaded rods 54) by means of threads or the like, and a clamping block 57 is fixedly connected to the inner side of the mounting block 56 by means of threads or the like.

[0071] In this embodiment, the structure and connection method of the other side of the clamping bracket 51 are the same as the above-mentioned method, and will not be further described in this embodiment.

[0072] The forward and reverse screw rod 54 of this embodiment is a screw rod with threads in different directions at both ends. During the rotation of the forward and reverse screw rod 54, the two movable blocks 55 threadedly connected to its two ends move toward the middle position or away from the middle position at the same time (that is, the two movable blocks 55 move closer or farther away from the middle position), thereby adapting to household appliances of different sizes and being able to stably clamp the household appliances.

[0073] One set of operating structures in this embodiment is provided with two clamping mechanisms 5, so that two household appliances can be tested simultaneously; three sets of operating structures are provided in this framework, so that six household appliances can be tested simultaneously.

[0074] The specific method of simulating the fan shaking in this embodiment is:

[0075] First, the household appliance is placed on the clamping mechanism 5 manually, and the user rotates the direct pin knurled nut to rotate the positive and negative threaded screw 54, so as to drive the moving block 55 to move toward the middle / or both sides, and then drive the mounting block 56 and the clamping block 57 to move toward the middle / or both sides, and finally realize the clamping of the household appliance; then the controller 24 controls the screw rod 22 to rotate, so as to drive the lifting slider to rise / or fall, and the rising height / or falling height is limited by the limiter; finally, the servo motor 32 drives the commutator 33 to reverse left and right, and then drives the reducer output shaft 34 to rotate left and right, so that the reducer output shaft 34 drives the clamping mechanism 5 to rotate left and right, and finally realizes the head turning simulation test of the household appliance.

[0076] The test component 4 includes a power module, which is a socket. In this embodiment, two sockets are provided under each group of operating structures. The two sockets are arranged on a support frame near the bottom of the frame 1, so that the power supply of the household appliance can be plugged into the socket. The power supply of the household appliance can be turned on and off by controlling the socket, and the current and voltage of each workstation can be detected, so as to measure in real time the time point when the line is disconnected or short-circuited when the appliance shakes its head.

[0077] It should be noted that the controller, upper limit sensor, lower limit sensor, servo motor, proximity switch, origin detection sensor, etc. involved in this embodiment can all adopt existing devices.

[0078] The measurement and control system includes a control module, a touch screen, a current transformer, a programmable power supply, and a voltage transmitter.

[0079] In this embodiment, the touch screen is arranged on the surface of the control space, which is convenient for debugging and controlling the internal equipment through the touch screen; the control module, current transformer, programmable power supply, and voltage transmitter are arranged in the control space, and the control module is a PLC. The PLC is also connected to the controller 24, the upper limit sensor 29, the lower limit sensor 30, the servo motor 32, the proximity switch 38, the origin detection sensor 40, etc., and then provides them with control instructions or receives data information transmitted by the above-mentioned devices, and then analyzes the received data.

[0080] The PLC is connected to the touch screen for communication, and the operating status of the equipment and some test parameters are monitored through the touch screen human-computer interaction, and the test parameters can be set through the touch screen. This device introduces the programmable power supply into the socket of each station of the equipment through an external programmable power supply. Before the power enters the socket, it is equipped with contactors, current transformers, voltage transmitters and other measurement modules to detect whether there is a circuit break or short circuit in the household shaking device during the test; the voltage value is detected to prevent the voltage of the actually installed household appliances from not matching the voltage of the programmable power supply; if the programmable power supply voltage is higher than the voltage used by the actually installed product; the device will forcibly disconnect the power contactor of the station. The voltage upper limit can be set on the touch screen.

[0081] In this embodiment, the model of the PLC used is DVP32ES200T, the model of the touch screen used is TPC1031Ni, the model of the current transformer used is MIK-DJI-10A, and the model of the voltage transmitter used is 0-500V / T2.

[0082] Compared with the prior art, the utility model has the following beneficial effects:

[0083] 1. The utility model provides a special device for measuring the life of household fans, heaters, etc., and the device has six groups of stations to test six groups of the same samples at the same time, and can also test three groups of different samples at the same time in groups of two. According to the standard requirements, the swing angle, test speed, and test times can be set by yourself. After the test is completed, it will automatically stop, and the height of the test axis of the equipment can be adjusted according to the height of different test samples.

[0084] 2. The utility model is characterized in that it can simultaneously meet the testing requirements of household shaking devices of different heights and sizes. It also has its own power supply, which can meet the requirements of different voltage levels and frequencies. The following will be explained in the form of pictures and texts.

[0085] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A household appliance shaking head test device, characterized in that: It includes a frame, a rotating assembly arranged in the frame, a height adjustment assembly, and a testing assembly; The height adjustment assembly includes a lifting base plate, a screw rod, a screw rod slider, and a controller. The screw rod slider is provided with a sliding hole adapted to the screw rod, so that the screw rod slider is sleeved on the screw rod through the sliding hole and is movably connected to the screw rod; a first mounting hole adapted to the screw rod slider is provided in the middle of the lifting base plate, so that the lifting base plate is fixedly connected to the screw rod slider through the first mounting hole; a second mounting hole adapted to one end of the controller is provided at the top of the frame, so that the controller is arranged at the top of the frame and one end of the controller is connected to one end of the screw rod through the second mounting hole, and the other end of the screw rod is arranged at the bottom of the frame; The rotating assembly includes a mounting rod, a servo motor, a commutator, a first reducer, a second reducer, and a clamping mechanism; the mounting rod is vertically mounted on the lifting base plate, the first reducer and the second reducer are respectively mounted on both ends of the mounting rod, the commutator is fixedly mounted at a position close to one end of the mounting rod, and the input end of the commutator is connected to the servo motor, the two output ends of the commutator are respectively connected to the first reducer and the second reducer, the output shaft of the first reducer and the output shaft of the second reducer are both connected to the clamping mechanism, and the clamping mechanism is used to clamp the electrical appliance; The test assembly includes a power module, which is arranged below the clamping mechanism and fixedly installed at the bottom of the frame. The electrical appliance clamped on the clamping mechanism is electrically connected to the power module.

2. A household appliance shaking head test device according to claim 1, characterized in that: The height adjustment assembly also includes a guide rod and a guide seat, one end of the guide rod is connected to the top of the frame, and the other end of the guide rod is connected to the bottom of the frame; a guide hole compatible with the guide rod is opened on the guide seat, so that the guide seat is sleeved on the guide rod through the guide hole; third mounting holes compatible with the guide seat are opened at the four corners of the lifting base plate, so that the lifting base plate is fixedly connected to the guide seat through the third mounting holes.

3. A household appliance shaking head test device according to claim 2, characterized in that: The height adjustment assembly also includes an upper limiter, a lower limiter, an upper limiter sensor adapted to the upper limiter, and a lower limiter sensor adapted to the lower limiter. The upper limiter and the lower limiter are both arranged in the frame. The upper limiter sensor is arranged on the lifting base plate on the same side as the upper limiter, and the lower limiter sensor is arranged on the lifting base plate on the same side as the lower limiter.

4. A household appliance shaking head test device according to claim 3, characterized in that: The rotating assembly includes a coupling and a connecting rod; the input end of the commutator is connected to the servo motor through a coupling, one output end of the commutator is connected to the first reducer through a coupling, and the other output end of the commutator is connected to the second reducer through the cooperation of the connecting rod and the coupling.

5. A household appliance shaking head test device according to claim 4, characterized in that: Proximity switches are also provided on both sides of the output shaft of the first reducer.

6. A household appliance shaking head test device according to claim 5, characterized in that: An origin detection block is sleeved on the connecting rod, and an origin detection sensor is also arranged on one side of the origin detection block.

7. A household appliance shaking head test device according to claim 6, characterized in that: The clamping mechanism includes a clamping bracket, a fixed rod, a positive and negative threaded rod, a moving block, and a clamping block. The top of the clamping bracket is connected to the output shaft, and the two side surfaces of the clamping bracket are connected to the moving block through the fixed rod and the positive and negative threaded rods. The moving block is also connected to the clamping block.

8. A household appliance shaking head test device according to claim 7, characterized in that: The two ends of the positive and negative threaded rod pass through the two side surfaces of the clamping bracket and are connected with the nut.

9. A household appliance shaking head test device according to claim 1, characterized in that: It also includes a measurement and control system, which includes a control module and a touch screen connected to the control module. The control module is arranged in the frame, and the touch screen is installed on the surface of the frame.

10. A household appliance shaking head test device according to claim 9, characterized in that: The power module is connected to the control module.

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