A simulated rain test box

Abstract

The present invention relates to the field of rain test equipment, and in particular to a simulated rain test box, comprising a test box, a shelf and a hollow frame, wherein the shelf is connected inside the test box, the hollow frame is connected to the top of the shelf, and the test box also comprises a water inlet pipe, a scattering nozzle, a blower mechanism, a fixing component and a reflection component, wherein the rear side of the test box is connected to a water inlet pipe, a plurality of scattering nozzles are connected to the water inlet pipe, a blower mechanism for simulating wind is arranged at the bottom of the test box, a fixing component for fixing a power distribution terminal is arranged on the shelf, and a reflection component for rebounding water droplets is arranged inside the test box. Through the scattering nozzle, the reflection arc plate, the reflection tube and the irregular groove, the water droplets form multi-angle and irregular rebound trajectories in the test box, and the movement trajectory of the water droplets is closer to the real raining situation, thereby improving the simulation and accuracy of the rain test, and finally achieving the purpose of more realistically evaluating the waterproof performance of the power distribution terminal.

Description

Technical Field

[0001] The invention relates to the field of rain test equipment, in particular to a simulated rain test box. Background Art

[0002] With the rapid development of the power industry and the improvement of the intelligent level of the power grid, the stability and reliability of the performance of the distribution terminal, as a key device in the distribution network automation system, is crucial to ensure the safe operation of the power grid. However, in actual operation, the distribution terminal is often affected by various severe weather conditions, especially rainfall, which may cause water ingress, short circuit or performance degradation.

[0003] In order to evaluate the waterproof performance of the power distribution terminal, waterproof test chambers are widely used in the market. Such test chambers are usually equipped with a nearly 360-degree rotating annular spray rack, which can simulate rain from different angles to spray the power distribution terminal placed in it. The water flow can cover all surfaces of the product more comprehensively, simulating the rain environment that may be encountered in actual use.

[0004] However, although the existing waterproof test chambers simulate the rain environment to a certain extent, their testing methods still have significant shortcomings. First of all, this method of rotating spraying through a ring-shaped spray rack is essentially more like flushing the product with water from different angles, rather than truly simulating the continuous and random falling process of raindrops in nature. Therefore, it is difficult to fully restore the actual impact of the real rain scene on the distribution terminal. Secondly, during the test process, the distribution terminal is usually fixed with simple tools such as cable ties. This fixing method is not only cumbersome and inefficient, but also inconvenient to disassemble after the test, and it is easy to leave marks on the surface of the product or even cause damage. Summary of the invention

[0005] In order to overcome the shortcomings of unrealistic simulation and inconvenient fixing, the present invention provides a rain test box with good simulation effect.

[0006] A simulated rain test box comprises a test box, a box door, a water storage tank, a storage rack and a hollow rack. The front side of the test box is rotatably connected to the box door, the bottom of the test box is provided with a water storage tank, the inside of the test box is connected to the storage rack, the top of the storage rack is connected to the hollow rack, and the test box also comprises a water inlet pipe, a scattering nozzle, a blower mechanism, a fixing component and a reflecting component. The rear side of the test box is connected to the water inlet pipe, the water inlet pipe is bent and located at the top of the test box, a plurality of scattering nozzles are connected to the water inlet pipe, a blower mechanism for simulating wind is provided at the bottom of the test box, a fixing component for fixing a power distribution terminal is provided on the storage rack, and a reflecting component for bouncing water droplets is provided inside the test box.

[0007] Optionally, the hair drying mechanism includes a mounting ring frame, a support rod, a blower, a diffuser head and a rotating assembly. The bottom of the shelf is rotatably connected to the mounting ring frame, the outer end of the mounting ring frame is rotatably connected to the support rod, the blower is installed on the support rod, a diffuser head is provided at the air outlet of the blower, and a rotating assembly for rotating the blower is provided in the test chamber.

[0008] Optionally, the rotating assembly includes a motor, a transmission member, a gear disk, a single gear sleeve, a first gear ring, a torsion spring and a follower rod. The motor is installed in the test box, the output shaft of the motor faces upward and is connected to the transmission member, the mounting ring frame is connected to the gear disk, the middle of the storage rack is connected to the first gear ring, the support rod is provided with a single gear sleeve, the single gear sleeve is meshed with the first gear ring, one end of the follower rod is rotatably connected to the storage rack, and the other end is rotatably connected to the support rod, the support rod is provided with a torsion spring, one end of the torsion spring is connected to the blower, and the other end is connected to the follower rod.

[0009] Optionally, the fixing assembly includes a positioning frame, a sliding frame, an extrusion rod, a rubber head, an elastic member, a slotted arc plate, an inner tooth turntable, a rotating rod, a gear, a connecting rod, a fixing plate, a locking plate and an elastic pull rope. Two positioning frames are connected to the storage rack, the positioning frame is slidably connected to the sliding frame, a plurality of extrusion rods are slidably connected to the sliding frame, one end of the extrusion rod is connected to the rubber head, the other end of the extrusion rod is sleeved with an elastic member, one end of the elastic member is connected to the extrusion rod, and the other end is connected to the sliding frame, and the outer ring of the storage rack is connected to a plurality of slotted arcs. The plate, all the slotted arc plates are rotatably connected with an inner-toothed turntable, and a limiting slot is opened on the inner-toothed turntable. Two rotating rods are rotatably connected to the storage rack, and a gear is connected to the middle of the rotating rod, and the gear is meshed with the inner-toothed turntable. One end of the connecting rod is connected to the rotating rod, and the other end is slidably connected to the sliding rack. A fixed plate is connected to the side of the storage rack, and the fixed plate is rotatably connected with a locking plate. The fixed plate and the inner-toothed turntable are in sliding contact, and the locking plate is limitedly matched with the limiting slot of the inner-toothed turntable. One end of the elastic pull rope is connected to the fixed plate, and the other end is connected to the lower end of the locking plate.

[0010] Optionally, the reflection assembly includes a mounting top plate, a reflection arc plate, a reflection tube and an opening and closing assembly. The mounting top plate is connected inside the test box, the reflection tube is rotatably connected to the bottom of the mounting top plate, the reflection arc plates are connected on the left and right sides of the test box, the reflection arc plates are slidably connected to the reflection tube, and the two reflection arc plates and the reflection tube form a complete circular tube. An opening and closing assembly for rotating the reflection tube is provided on the mounting top plate.

[0011] Optionally, the opening and closing assembly includes a limit plate, a sliding rod, a toothed sleeve, a second gear ring and a transmission rod. The limit plate is connected inside the test box, the sliding rod is slidably and rotatably connected inside the limit plate, the bottom of the sliding rod is provided with a toothed sleeve, the top of the reflective tube is connected with a second gear ring, the toothed sleeve can engage with the second gear ring, one end of the transmission rod is fixedly connected to the top of the sliding rod, and the other end is rotatably connected to the box door.

[0012] Optionally, a protective cover is also included, and the bottom of the test box is connected with the protective cover.

[0013] Optionally, the reflective arc plate and the inner wall of the reflective tube are provided with irregular grooves.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. Through scattering nozzles, reflective arc plates, reflective tubes and irregular grooves, water droplets form multi-angle and irregular rebound trajectories in the test box. The movement trajectory of water droplets is closer to the actual raining situation, thereby improving the simulation and accuracy of the rain test, and ultimately achieving the purpose of more realistically evaluating the waterproof performance of the distribution terminal.

[0016] 2. Through the coordination of the various components of the fixing assembly, the distribution terminal is quickly and stably fixed, the fixing process is simplified, the operating efficiency is improved, and the stability and safety of the distribution terminal during the test are ensured. The setting of the rubber head and elastic parts protects the product, ultimately achieving the purpose of convenient fixing and protecting the distribution terminal.

[0017] 3. Through the opening and closing actions of various components in the blower mechanism and the reflective assembly, the blower can rotate while revolving, which not only simulates the variability of wind direction during real rain, but also enhances the impact and coverage of water droplets on the distribution terminal, thereby improving the reliability and effectiveness of the test, and ultimately achieving the purpose of more comprehensively simulating the real rain environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the installation structure of the water inlet pipe, the scattering nozzle and the storage rack of the present invention.

[0020] Figure 3 It is a schematic diagram of the connection relationship between the hair dryer mechanism and the opening and closing assembly of the present invention.

[0021] Figure 4 It is a schematic diagram of the specific structure of the hair dryer mechanism of the present invention.

[0022] Figure 5 It is an exploded view of the hair dryer structure of the present invention.

[0023] Figure 6 It is a schematic diagram of the connection relationship of the fixing components of the present invention.

[0024] Figure 7 It is a schematic diagram of the specific structure of the fixing assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of the specific structure of the fixing plate, the locking plate and the elastic pull rope of the present invention.

[0026] Fig. 9 It is a schematic diagram of the connection relationship of the reflective assembly of the present invention.

[0027] Fig.10 It is a schematic diagram of the connection relationship between the reflective arc plate and the reflective tube of the present invention.

[0028] The meanings of the reference numerals in the figure are as follows: 1: test box, 2: box door, 3: water inlet pipe, 31: scattering nozzle, 4: water storage tank, 5: storage rack, 51: hollow rack, 6: hair dryer structure, 61: mounting ring rack, 62: support rod, 63: blower, 64: diffuser head, 65: rotating assembly, 651: motor, 652: transmission part, 653: gear disc, 654: single gear sleeve, 655: first gear ring, 656: torsion spring, 657: follower rod, 66: protective cover, 7: fixing assembly, 71: positioning frame, 72: sliding Moving frame, 73: extrusion rod, 731: rubber head, 74: elastic part, 75: slotted arc plate, 76: internal gear turntable, 761: limit groove, 77: rotating rod, 78: gear, 79: connecting rod, 710: fixing plate, 711: locking plate, 712: elastic pull rope, 8: reflection component, 81: installation top plate, 82: reflection arc plate, 83: reflection tube, 84: opening and closing component, 841: limit plate, 842: sliding rod, 843: missing tooth sleeve, 844: second gear ring, 845: transmission rod, 85: irregular groove. DETAILED DESCRIPTION

[0029] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] Embodiment: A simulated rain test box, such as Figure 1-Figure 10As shown, it includes a test box 1, a box door 2, a water tank 4, a rack 5 and a hollow frame 51. The box door 2 is rotatably connected to the left front side of the test box 1, a water tank 4 is arranged at the bottom of the test box 1, a water outlet is arranged on the bottom side plate of the test box 1, the water outlet is connected to the water tank 4, a rack 5 is connected to the middle of the bottom of the test box 1, and the top of the rack 5 is connected to the hollow frame 51. It also includes a water inlet pipe 3, a scattering nozzle 31, a hair dryer mechanism 6, a fixing component 7 and a reflecting component 8. The water inlet pipe 3 enters from the rear side of the test box 1, and the water inlet pipe 3 is bent and connected to the top of the test box 1. Four scattering nozzles 31 are connected to the bottom side of the top of the water inlet pipe 3. A hair dryer mechanism 6 for simulating blowing is arranged at the bottom of the test box 1, a fixing component 7 for fixing the power distribution terminal is arranged on the rack 5, and a reflecting component 8 for bouncing water droplets is arranged on the inside of the test box 1.

[0031] like Figure 3-Figure 5 As shown, the hair dryer mechanism 6 includes a mounting ring frame 61, a support rod 62, a blower 63, a diffuser head 64 and a rotating assembly 65. The mounting ring frame 61 is rotatably connected to the bottom of the storage rack 5, and the top surface of the outer end of the mounting ring frame 61 is rotatably connected to the support rod 62. The blower 63 is installed on the support rod 62, and the air inlet of the blower 63 faces downward. The diffuser head 64 is arranged at the air outlet of the blower 63, and the diffuser head 64 faces the storage rack 5. A rotating assembly 65 for rotating the blower 63 is arranged in the test box 1.

[0032] like Figure 4 and Figure 5 As shown, the rotating assembly 65 includes a motor 651, a transmission member 652, a toothed disc 653, a single gear sleeve 654, a first gear ring 655, a torsion spring 656, a follower rod 657 and a protective cover 66. The motor 651 is installed in the test box 1. The output shaft of the motor 651 passes through the bottom plate of the test box 1 and is connected to the transmission member 652. The transmission member 652 is cam-shaped as a whole. The toothed disc 653 is connected to the mounting ring frame 61. The toothed disc 653 and the transmission member 652 transmit The first gear ring 655 is connected in the middle of the rack 5, and a single gear sleeve 654 is fixedly sleeved on the support rod 62. The single gear sleeve 654 meshes with the first gear ring 655. One end of the follower rod 657 is rotatably connected to the rack 5, and the other end is rotatably connected to the support rod 62. A torsion spring 656 is sleeved on the support rod 62, and one end of the torsion spring 656 is connected to the blower 63, and the other end is connected to the follower rod 657. A protective cover 66 is connected to the bottom of the test box 1.

[0033] like Figure 6-Figure 8As shown, the fixing assembly 7 includes a positioning frame 71, a sliding frame 72, an extrusion rod 73, a rubber head 731, an elastic member 74, a slotted arc plate 75, an inner tooth turntable 76, a rotating rod 77, a gear 78, a connecting rod 79, a fixing plate 710, a locking plate 711 and an elastic pull rope 712. Two positioning frames 71 are symmetrically connected to the storage rack 5. The positioning frame 71 is slidably connected to the sliding frame 72. Four extrusion rods 73 are slidably connected to the sliding frame 72. The extrusion rods 73 on each sliding frame 72 are distributed in a fan shape as a whole. The end of the extrusion rod 73 facing the center of the hollow frame 51 is connected to the rubber head 731. The end of the extrusion rod 73 away from the center of the hollow frame 51 is sleeved with an elastic member 74. One end of the elastic member 74 is connected to the extrusion rod 73, and the other end is connected to the side of the sliding frame 72 away from the center of the hollow frame 51. The outer ring of the storage rack 5 is connected to a plurality of slotted arc plates 75. The tops of all the slotted arc plates 75 are rotatably connected with an inner-toothed rotating disk 76, and a plurality of limiting grooves 761 are opened on the inner-toothed rotating disk 76. The inner-toothed rotating disk 76 is provided with two arc-shaped racks. Two rotating rods 77 are rotatably connected to the storage rack 5. The rotating rod 77 passes through the inner-toothed rotating disk 76. A gear 78 is connected to the middle of the rotating rod 77. The gear 78 meshes with the arc-shaped rack of the inner-toothed rotating disk 76. One end of the connecting rod 79 is connected to the rotating rod 77, and the other end is slidably connected to the sliding rack 72. A fixed plate 710 is connected to the front side of the storage rack 5. The fixed plate 710 is rotatably connected with a locking plate 711. An inclined surface block is provided on the inner side of the locking plate 711. The fixed plate 710 and the inner-toothed rotating disk 76 are in sliding contact. The inclined surface block on the locking plate 711 is limitedly matched with the limiting grooves 761 of the inner-toothed rotating disk 76. One end of the elastic pull rope 712 is connected to the fixed plate 710, and the other end is connected to the lower end of the locking plate 711.

[0034] like Figure 3 , Fig. 9 and Fig.10 As shown, the reflection assembly 8 includes a mounting top plate 81, a reflection arc plate 82, a reflection tube 83 and an opening and closing assembly 84. The mounting top plate 81 is connected to the upper part of the test box 1, the middle part of the mounting top plate 81 is hollowed out, and the bottom of the mounting top plate 81 is rotatably connected to the reflection tube 83. The left and right sides of the test box 1 are connected to the reflection arc plates 82, the reflection arc plates 82 are slidably connected to the reflection tube 83, and the two reflection arc plates 82 and the reflection tube 83 form a complete circular tube. The mounting top plate 81 is provided with an opening and closing assembly 84 for rotating the reflection tube 83, and the inner walls of the reflection arc plates 82 and the reflection tube 83 are provided with irregular grooves 85.

[0035] like Fig. 9 and Fig.10As shown, the opening and closing assembly 84 includes a limit plate 841, a sliding rod 842, a toothed sleeve 843, a second gear ring 844 and a transmission rod 845. The limit plate 841 is connected to the upper left side of the test box 1. The vertically arranged sliding rod 842 is slidably connected to the limit plate 841 through a sliding sleeve. The sliding rod 842 is rotatably connected to the sliding sleeve. The top of the sliding rod 842 passes through the test box 1. The bottom of the sliding rod 842 is fixedly sleeved with a toothed sleeve 843. The top of the reflection tube 83 is connected to the second gear ring 844. The toothed sleeve 843 can mesh with the second gear ring 844. One end of the transmission rod 845 is fixedly connected to the top of the sliding rod 842, and the other end is rotatably connected to the box door 2.

[0036] The experimenter opens the box door 2, puts the power distribution terminal to be tested on the hollow frame 51, and fixes it through the fixing component 7. Then, in the process of closing the box door 2, the reflective tube 83 can be rotated through the opening and closing component 84. After closing the box door 2, the water source of the water inlet pipe 3 is connected, and the water flow sprays water droplets downward through the scattering nozzle 31 on the top of the water inlet pipe 3, and is irregularly ejected through the reflecting component 8. At the same time, the blower 63 and the motor 651 of the hair dryer mechanism 6 are turned on, and the blowing position of the blower 63 is adjusted by the rotating component 65 to simulate the actual situation of wind blowing in the rain. After the test is carried out for a period of time, the electrical equipment is turned off and the water source of the water inlet pipe 3 is disconnected. The box door 2 is opened, and the fixing component 7 on the power distribution terminal is released. After the power distribution terminal is taken out, its waterproof performance is evaluated, thereby completing the simulated rain test;

[0037] During the fixing process of the power distribution terminal, the power distribution terminal needs to be placed on the hollow frame 51 of the storage rack 5, and then the inner tooth turntable 76 is rotated. During the rotation of the inner tooth turntable 76, it slides on the slotted arc plate 75. Since the position of the rotating rod 77 is fixed, when the inner tooth turntable 76 is engaged with the gear 78, the rotating rod 77 is driven to rotate, and the rotating rod 77 drives the connecting rod 79 to rotate. The other end of the connecting rod 79 pushes the sliding frame 72 to slide on the positioning frame 71, so that the sliding frame 72 pushes the extrusion rod 73 to approach the power distribution terminal, and the fan-shaped extrusion rod 73 contacts the power distribution terminal at the same time, and the rubber head 73 After being squeezed with the power distribution terminal, the squeezing rod 73 slides on the sliding frame 72 and stretches the elastic member 74, thereby preventing the power distribution terminal from being over-squeezed and damaged. The inner-toothed rotating disk 76 slides in contact with the locking plate 711 during the rotation process. The inclined block on the locking plate 711 cooperates with the limiting groove 761. After the experimenter releases the inner-toothed rotating disk 76, the inner-toothed rotating disk 76 will not rotate in the opposite direction, thereby ensuring the fixing effect of the power distribution terminal. In addition, there is no need to use a cable tie to fix it, and the fixing process is more convenient. The cable tie does not need to be cut during the disassembly process, and the power distribution terminal will not be damaged.

[0038] In the process of closing the door 2, the door 2 drives the transmission rod 845 to move, and the other end of the transmission rod 845 pushes the sliding rod 842 to slide backward in the limit plate 841, thereby driving the missing tooth sleeve 843 to move backward and rotate. In the process of moving, the missing tooth sleeve 843 meshes with the second gear ring 844, so that the second gear ring 844 and the reflection tube 83 rotate 90 degrees together, and the part where the reflection tube 83 and the reflection arc plate 82 originally overlap is misaligned, and the reflection tube 83 and the reflection arc plate 82 form a complete sleeve;

[0039] When the test officially starts, the motor 651 and the blower 63 are turned on. The motor 651 drives the transmission member 652 to rotate continuously. Each time the transmission member 652 rotates one circle, it cooperates with the gear plate 653 once, thereby intermittently rotating the mounting ring frame 61. During the rotation of the mounting ring frame 61, the blower 63 is driven to rotate through the support rod 62. After the air blown by the blower 63 is dispersed through the diffuser head 64, the falling water droplets are blown to change the movement trajectory of the water droplets. In addition, during the falling process of the water droplets, they contact the reflection tube 83 and the reflection arc plate 82. After rebounding from the irregular grooves 85 on the reflection tube 83 and the reflection arc plate 82, the movement trajectory of the water droplets is closer to the real situation. The water droplets rebounded by the object can contact the distribution terminal from all sides to optimize the simulation effect. At this time, the support rod 62 rotates around the storage rack 5 , the single gear sleeve 654 is meshed with the first gear ring 655, the gear disc 653 rotates intermittently once, the single gear sleeve 654 is meshed with the first gear ring 655 multiple times, the blower 63 and the diffuser head 64 rotate around the support rod 62 multiple times, and during the rotation of the single gear sleeve 654, the torsion spring 656 is twisted. After the single gear sleeve 654 is disengaged from the first gear ring 655, the torsion spring 656 is twisted back to drive the support rod 62 to rotate and reset, so that the blower 63 can reciprocate around the support rod 62 while revolving around the rack 5, simulating wind blowing and optimizing the simulation effect. The follower rod 657 is used to maintain the stability of the support rod 62 during rotation. During the process of water droplets falling, the protective cover 66 isolates most of the water droplets for the motor 651 and the transmission member 652. After the water droplets fall to the bottom of the test box 1, they enter the water storage tank 4;

[0040] After the test, turn off the motor 651 and the blower 63, and the experimenter opens the box door 2, pulls the sliding rod 842 to move through the transmission rod 845, the toothed sleeve 843 engages with the second gear ring 844, and the reflection tube 83 rotates in the opposite direction, and the reflection tube 83 overlaps with the reflection arc plate 82. The experimenter holds the fixing plate 710 and the locking plate 711, and pulls the elastic pull rope 712 during the rotation of the locking plate 711, so that the locking plate 711 is disengaged from the inner gear turntable 76. When the experimenter rotates the inner gear turntable 76 in the opposite direction, the elastic member 74 rebounds, and pulls the sliding frame 72 through the connecting rod 79 to disengage the extrusion rod 73 from the distribution terminal, and the inner gear turntable 76 rotates to reset, thereby releasing the fixation of the distribution terminal, taking out the distribution terminal, and completing the simulated rain test.

[0041] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined in the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A simulated rain test box, comprising a test box (1), a box door (2), a water storage tank (4), a storage rack (5) and a hollow frame (51), wherein the test box (1) is rotatably connected to the box door (2) at the front side, the test box (1) is provided with a water storage tank (4) at the bottom, the test box (1) is connected to the storage rack (5) inside, and the top of the storage rack (5) is connected to the hollow frame (51), wherein: The test box (1) also includes a water inlet pipe (3), a scattering nozzle (31) and a blower mechanism (6). The test box (1) is connected to the water inlet pipe (3) at the rear side. The water inlet pipe (3) is bent and located at the top of the test box (1). The water inlet pipe (3) is connected to a plurality of scattering nozzles (31). The test box (1) is provided with a blower mechanism (6) for simulating wind at the bottom. The blower mechanism (6) includes a mounting ring frame (61), a support rod (62), a blower (63), a diffuser head (64) and a rotating assembly (65). The bottom of the storage rack (5) is rotatably connected to the mounting ring frame (61). The outer end of the mounting ring frame (61) is rotatably connected to the support rod (62). The blower (63) is mounted on the support rod (62). The diffuser head (64) is provided at the air outlet of the blower (63). A rotating assembly (65) for rotating the blower (63) is provided in the test box (1). The rotating assembly (65) includes a single gear sleeve (654). , a first gear ring (655), a torsion spring (656) and a follower rod (657); the first gear ring (655) is connected in the middle of the storage rack (5); a single gear sleeve (654) is sleeved on the support rod (62); the single gear sleeve (654) is meshed with the first gear ring (655); one end of the follower rod (657) is rotatably connected to the storage rack (5); the other end is rotatably connected to the support rod (62); a torsion spring (656) is sleeved on the support rod (62); the torsion spring (656) 56) is connected to the blower (63) at one end and to the follower rod (657) at the other end. The rotating assembly (65) further comprises a motor (651), a transmission member (652) and a toothed disc (653). The motor (651) is installed in the test box (1). The output shaft of the motor (651) faces upward and is connected to the transmission member (652). The mounting ring frame (61) is connected to the toothed disc (653). The toothed disc (653) and the transmission member (652) are in transmission cooperation.

2. A simulated rain test box according to claim 1, characterized in that: The invention also includes a fixing assembly (7) for fixing the power distribution terminal. The fixing assembly (7) includes a positioning frame (71), a sliding frame (72), an extrusion rod (73), a rubber head (731), an elastic member (74), a slotted arc plate (75), an inner toothed rotating disk (76), a rotating rod (77), a gear (78), a connecting rod (79), a fixing plate (710), a locking plate (711) and an elastic pull rope (712). The storage rack (5) is connected to two positioning frames (71). The positioning frame (71) is slidably connected to the sliding frame (72). The sliding frame (72) is slidably connected to a plurality of extrusion rods (73). One end of the extrusion rod (73) is connected to the rubber head (731). The other end of the extrusion rod (73) is sleeved with an elastic member (74). One end of the elastic member (74) is connected to the extrusion rod (73) and the other end is connected to the sliding frame (72). The outer ring of the storage rack (5) A plurality of slotted arc plates (75) are connected, and an inner toothed rotating disk (76) is rotatably connected to all the slotted arc plates (75). The inner toothed rotating disk (76) has a limit slot (761). Two rotating rods (77) are rotatably connected to the storage rack (5). A gear (78) is connected to the middle of the rotating rod (77). The gear (78) meshes with the inner toothed rotating disk (76). One end of a connecting rod (79) is connected to the rotating rod (77), and the other end is connected to the sliding member. The movable frame (72) is slidably connected, a fixed plate (710) is connected to the side of the storage rack (5), the fixed plate (710) is rotatably connected to a locking plate (711), the fixed plate (710) and the inner gear rotating disk (76) are in sliding contact, the locking plate (711) and the limiting groove (761) of the inner gear rotating disk (76) are limitedly matched, and one end of the elastic pull rope (712) is connected to the fixed plate (710), and the other end is connected to the lower end of the locking plate (711).

3. A simulated rain test box according to claim 2, characterized in that: The invention also comprises a reflection assembly (8) for bouncing water droplets, wherein the reflection assembly (8) comprises a mounting top plate (81), a reflection arc plate (82), a reflection tube (83) and an opening and closing assembly (84). The mounting top plate (81) is connected inside the test box (1), and the bottom of the mounting top plate (81) is rotatably connected to the reflection tube (83). The left and right sides of the test box (1) are connected to the reflection arc plates (82), and the reflection arc plates (82) and the reflection tube (83) are slidably connected. The two reflection arc plates (82) and the reflection tube (83) form a complete circular tube. The mounting top plate (81) is provided with an opening and closing assembly (84) for rotating the reflection tube (83).

4. A simulated rain test box according to claim 3, characterized in that: The opening and closing assembly (84) comprises a limit plate (841), a sliding rod (842), a toothed sleeve (843), a second gear ring (844) and a transmission rod (845). The limit plate (841) is connected inside the test box (1). The sliding rod (842) is slidably and rotatably connected inside the limit plate (841). The bottom of the sliding rod (842) is sleeved with a toothed sleeve (843). The top of the reflection tube (83) is connected with the second gear ring (844). The toothed sleeve (843) can mesh with the second gear ring (844). One end of the transmission rod (845) is fixedly connected to the top of the sliding rod (842), and the other end is rotatably connected to the box door (2).

5. A simulated rain test box according to claim 4, characterized in that: It also includes a protective cover (66), and the bottom of the test box (1) is connected to the protective cover (66).

6. A simulated rain test box according to claim 5, characterized in that: Irregular grooves (85) are provided on the inner walls of the reflection arc plate (82) and the reflection tube (83).

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