Salt spray testing machine capable of conveniently adding raw materials

Abstract

The utility model discloses a salt spray testing machine convenient to add raw materials, which comprises a base, the top of the base is fixedly provided with a salt spray testing machine body, one side of the back of the salt spray testing machine body is fixedly provided with an adjusting mechanism, and the top of the adjusting mechanism is fixedly provided with a top cover. By the adoption of the structure, the spraying mechanism is matched with the supply mechanism, salt mist can be evenly sprayed and supplied, liquid in the water tank is conveyed to the spraying frame through the hose and the rotary connector by the water pump and converted into salt mist through the spraying head to be sprayed into the test box, and on the aspect of spraying uniformity control, the second motor drives the gear to rotate, and the salt mist is sprayed into the test box. The gear drives the gear ring meshed with the gear, then the sliding ring and the connecting ring connected with the gear ring drive the multiple spraying frames to rotate, the spraying frames rotate to enable the spraying heads to spray salt mist at different angles, the coverage range is enlarged, the distribution uniformity of the salt mist is improved, and the accuracy and reliability of salt mist test results are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of salt spray testing technology, and specifically relates to a salt spray testing machine that facilitates the addition of raw materials. Background Technology

[0002] In modern industrial production and scientific research, the corrosion resistance of products and materials is an important indicator for measuring their quality and reliability. The fully automatic salt spray test chamber, through a programmable touch screen instrument, allows for one-time setting of parameters such as temperature, humidity, test time, and number of cycles. It has functions such as automatic cycle operation, curve generation, data output, saving and printing, and remote control, which greatly improves the test efficiency and reduces labor costs. It has become a key device for artificially simulating salt spray environment and evaluating the corrosion resistance of products. It is widely used in industries such as machinery, defense, light industry, electronics, and instrumentation, and plays an important role in studying the environmental adaptability and reliability of various products.

[0003] Existing precision salt spray testing machines, such as the one disclosed in announcement number "CN216132893U" which facilitates the addition of experimental materials, have certain advantages in terms of ease of material addition and drying effect, but still have significant shortcomings. Their top-feeding structure is not conducive to quick disassembly, making it inconvenient to inspect and maintain the spray head and tube rack, thus affecting equipment maintenance efficiency. At the same time, the fixed spray head makes it difficult to achieve uniform spraying of salt spray during the test, which can easily cause uneven salt spray coverage on the surface of the tested product, affecting the accuracy and reliability of the test results. Therefore, there is an urgent need to improve the design of existing salt spray testing machines to meet the needs of efficient and precise salt spray testing in industrial production and scientific research experiments. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a salt spray test machine that facilitates the addition of raw materials, so as to solve the problems of the inability to quickly inspect and maintain the existing technology and to spray flexibly and evenly during application.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A salt spray test chamber for easy addition of raw materials includes a base, a salt spray test chamber body fixedly mounted on the top of the base, an adjustment mechanism fixedly mounted on one side of the back of the salt spray test chamber body, a top cover fixedly mounted on the top of the adjustment mechanism, a slot opened in the middle of the top of the salt spray test chamber body, the top cover covering the top of the slot, a supply mechanism fixedly mounted on the top of the top cover, a spraying mechanism mounted on the bottom of the top cover, and the input end of the spraying mechanism and the output end of the supply mechanism being connected.

[0007] The adjustment mechanism includes a frame, which is fixedly installed on one side of the back of the salt spray test chamber body. A first motor is fixedly installed at the bottom of the frame. A lead screw is fixedly installed through the output end of the first motor through the frame. The lead screw is rotatably connected to the inside of the frame. A slider is slidably connected inside the frame. The slider and the lead screw are threadedly connected. A connecting rod is fixedly installed on the rear side of the slider. The top of the connecting rod is fixedly connected to the top cover.

[0008] Furthermore, the supply mechanism includes a water tank, which is fixedly installed on the top of the cover. A water pump is fixedly installed on the lower side of one side of the water tank. A hose is fixedly installed at the output end of the water pump. A rotary joint is fixedly installed at the end of the hose. The output end of the rotary joint is connected to the input end of the spray mechanism. The rotary joint is rotatably connected to the middle of the cover.

[0009] Furthermore, a feeding pipe is fixedly installed on the top of the water tank, and a sealing cap is threadedly connected to the top of the feeding pipe.

[0010] Furthermore, an observation window is provided on the front of the water tank, and a tempered glass plate is fixedly connected inside the observation window.

[0011] Furthermore, a support frame is fixedly installed on the top of the top cover, and the rotary joint is fixedly connected to the inner side of the support frame.

[0012] Furthermore, the spraying mechanism includes a second motor and an annular groove. The second motor is fixedly installed on one side of the top of the top cover. The annular groove is opened at the bottom of the top cover. A slip ring is rotatably connected inside the annular groove. A toothed ring is fixedly installed at the bottom of the slip ring. A connecting ring is fixedly connected to the bottom of the toothed ring. A spray frame is fixedly connected to the bottom of the connecting ring in a ring at equal intervals. A spray head is fixedly connected to the bottom of the spray frame in a linear arrangement at equal intervals. The input end of the spray frame is connected to the rotating nozzle. A gear is fixedly connected to the output end of the second motor through the top cover. The gear and the toothed ring are meshed together.

[0013] Furthermore, the overall cross-sectional shape of the slip ring is convex, and the internal cross-sectional shape of the annular groove is also convex. Wear-resistant pads are fixedly connected to the inner wall of the annular groove and the outer surface of the slip ring.

[0014] In summary, the present invention has the following main advantages:

[0015] First, the adjustment mechanism of this device consists of a first motor, a lead screw, a slider, and other components. When overhauling the spray mechanism, the first motor is started to drive the lead screw to rotate. The lead screw drives the slider to slide up and down in the frame slide rail through the threaded engagement. The slider drives the top cover to rise and fall synchronously through the connecting rod. The upward movement of the slider allows the top cover, carrying the spray mechanism, to be pulled out of the slot for easy maintenance. After maintenance, the first motor reverses, the slider slides down and drives the top cover to reset, completing the installation of the spray mechanism. This facilitates equipment maintenance operations and improves maintenance efficiency.

[0016] Secondly, the spray mechanism and supply mechanism of this device work together to achieve uniform salt spraying. During supply, the water pump delivers the liquid in the water tank to the spray frame through the hose and rotary joint. The liquid is then converted into salt spray by the spray head and sprayed into the test chamber. In terms of spray uniformity control, the second motor drives the gear to rotate. The gear drives the meshing gear ring, which in turn causes the slip ring and connecting ring connected to the gear ring to drive multiple spray frames to rotate. The rotation of the spray frames causes the spray head to spray salt spray at different angles, expanding the coverage area, improving the uniformity of salt spray distribution, and ensuring the accuracy and reliability of the salt spray test results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the top cover in the open state of this utility model.

[0019] Figure 3 This is a schematic diagram of the top cover of this utility model in the open state, viewed from below.

[0020] Figure 4 This is a bottom view schematic diagram of the spray mechanism of this utility model;

[0021] Figure 5 This is a top-view structural diagram of the spray mechanism of this utility model in a disassembled state.

[0022] Reference numerals in the attached drawings: 1. Base; 2. Salt spray test chamber body; 3. Adjustment mechanism; 31. Frame; 32. First motor; 33. Lead screw; 34. Slider; 35. Connecting rod; 4. Top cover; 5. Groove; 6. Supply mechanism; 61. Water tank; 62. Water pump; 63. Hose; 64. Rotary joint; 65. Feed pipe; 66. Sealing cover; 67. Observation window; 68. Support frame; 7. Spraying mechanism; 71. Second motor; 72. Annular groove; 73. Slip ring; 74. Gear ring; 75. Connecting ring; 76. Spray frame; 77. Spray head; 78. Gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please refer to Figure 1-5 This embodiment of a salt spray tester for easy addition of raw materials includes a base 1, a salt spray tester body 2 fixedly installed on the top of the base 1, an adjustment mechanism 3 fixedly installed on one side of the back of the salt spray tester body 2, a top cover 4 fixedly installed on the top of the adjustment mechanism 3, a slot 5 opened in the middle of the top of the salt spray tester body 2, the top cover 4 covering the top of the slot 5, a supply mechanism 6 fixedly installed on the top of the top cover 4, a spray mechanism 7 installed at the bottom of the top cover 4, and the input end of the spray mechanism 7 and the output end of the supply mechanism 6 connected.

[0026] The adjustment mechanism 3 includes a frame 31, which is fixedly installed on one side of the back of the salt spray test chamber body 2. A first motor 32 is fixedly installed at the bottom of the frame 31. A lead screw 33 is fixedly installed through the frame 31 at the output end of the first motor 32. The lead screw 33 is rotatably connected to the inside of the frame 31. A slider 34 is slidably connected inside the frame 31. The slider 34 and the lead screw 33 are threadedly connected. A connecting rod 35 is fixedly installed on the rear side of the slider 34. The top of the connecting rod 35 is fixedly connected to the top cover 4. When the salt spray test chamber is working, the base 1 provides stable support for the whole. When the spray mechanism 7 needs to be inspected or maintained, the first motor 32 at the bottom of the frame 31 in the adjustment mechanism 3 is started. The output end of the first motor 32 drives the lead screw 33 to rotate inside the frame 31. Since the slider 34 is threadedly connected to the lead screw 33, the slider 34 moves along the lead screw 33 during the rotation of the lead screw 33. The slide rail inside the frame 31 slides up and down. The connecting rod 35 fixed to the rear of the slider 34 transmits the displacement of the slider 34 to the top cover 4, thereby driving the top cover 4 to move in the vertical direction. When it is necessary to add raw materials or repair the spray mechanism 7, the first motor 32 drives the slider 34 to move upward, and the connecting rod 35 drives the top cover 4 to rise, so that the top cover 4 is separated from the slot 5 at the top of the salt spray test machine body 2. The spray mechanism 7 installed at the bottom of the top cover 4 is pulled out from the slot 5 for easy operation by the operator. After the operation is completed, the first motor 32 rotates in the opposite direction, the lead screw 33 drives the slider 34 to slide down, and the connecting rod 35 drives the top cover 4 to fall down and cover the top of the slot 5 again. The supply mechanism 6 delivers the raw materials to the spray mechanism 7. The spray mechanism 7 converts the raw materials into salt spray and sprays it into the salt spray test machine body 2 through the input and output terminals connected to the supply mechanism 6 to realize the salt spray test function.

[0027] Please refer to Figures 1-3 The supply mechanism 6 includes a water tank 61, which is fixedly installed on the top of the top cover 4. A water pump 62 is fixedly installed on the lower side of the water tank 61. A hose 63 is fixedly installed at the output end of the water pump 62. A rotary joint 64 is fixedly installed at the end of the hose 63. The output end of the rotary joint 64 is connected to the input end of the spray mechanism 7. The rotary joint 64 is rotatably connected to the middle of the top cover 4. When the supply mechanism 6 is running, the water tank 61 is fixed to the top of the top cover 4 and is used to store the raw material liquid required for the test. When the salt spray test chamber is working, the water pump 62 at the lower side of the water tank 61 is started. The water pump 62 draws out the raw material liquid in the water tank 61 and generates pressure. Under the action of pressure, the liquid flows through the hose at the output end of the water pump 62. The liquid is conveyed to the rotary joint 64, which is rotatably connected to the middle of the top cover 4. As the hub for liquid transmission, it is connected to the hose 63 to receive the liquid on one hand, and to the input end of the spray mechanism 7 on the other hand, so as to stably deliver the liquid to the spray mechanism 7. Even if the spray mechanism 7 is adjusted with the top cover 4 or the spray frame 76 rotates, the rotary joint 64 can ensure the stable connection between the hose 63 and the spray mechanism 7 through its own rotation characteristics, so as to avoid the interruption of liquid transmission or the hose 63 getting tangled due to relative movement. This ensures that the raw material liquid is continuously and stably supplied to the spray mechanism 7, providing the necessary conditions for the spray mechanism 7 to convert the liquid into salt spray and spray it into the salt spray test machine body 2.

[0028] Please refer to Figures 1-5A feeding pipe 65 is fixedly installed on the top of the water tank 61, and a sealing cap 66 is threadedly connected to the top of the feeding pipe 65. An observation window 67 is provided on the front of the water tank 61, and a tempered glass plate is fixedly connected inside the observation window 67. A support frame 68 is fixedly installed on the top of the top cover 4, and a rotary joint 64 is fixedly connected to the inside of the support frame 68. During the operation of the supply mechanism 6, the operator can first unscrew the sealing cap 66 on the top of the feeding pipe 65, and inject the raw material liquid required for the test into the water tank 61 fixed on the top of the top cover 4 through the feeding pipe 65. After the injection is completed, the sealing cap 66 is tightened on the top of the feeding pipe 65 to prevent liquid leakage or impurities from entering. The observation window 67 on the front of the water tank 61 is sealed and fixed with a tempered glass plate, allowing the operator to observe the liquid through the pipe. The observation window 67 allows for real-time monitoring of the liquid level and status in the water tank 61, enabling timely replenishment of raw materials. When the salt spray test chamber is in operation, the water pump 62 starts, drawing the liquid from the water tank 61 and delivering it to the rotary joint 64 via the hose 63. The rotary joint 64 is fixed to the top of the top cover 4 by the support frame 68, ensuring its stable position. The support frame 68 provides support for the rotary joint 64, allowing it to maintain communication with the hose 63 while being stably connected to the input end of the spray mechanism 7. Even when the spray mechanism 7 is adjusted up and down with the top cover 4 or the spray frame 76 rotates, the rotary joint 64 can still ensure the continuity and stability of liquid transmission through its rotational characteristics, achieving a reliable supply of raw material liquid from the water tank 61 to the spray mechanism 7.

[0029] Please refer to Figure 5-Figure 5The spray mechanism 7 includes a second motor 71 and an annular groove 72. The second motor 71 is fixedly installed on one side of the top of the top cover 4. The annular groove 72 is opened at the bottom of the top cover 4. A slip ring 73 is rotatably connected inside the annular groove 72. A toothed ring 74 is fixedly installed at the bottom of the slip ring 73. A connecting ring 75 is fixedly connected to the bottom of the toothed ring 74. A spray frame 76 is fixedly connected to the bottom of the connecting ring 75 in a ring with equal intervals. A spray head 77 is fixedly connected to the bottom of the spray frame 76 in a linear arrangement with equal intervals. The input end of the spray frame 76 is connected to the rotating spray head. A gear 78 is fixedly connected to the output end of the second motor 71 through the top cover 4. The gear 78 and the toothed ring 74 are meshed. The overall cross-sectional shape of the slip ring 73 is convex. The internal cross-sectional shape of the annular groove 72 is also convex. Wear-resistant gaskets are fixedly connected to the inner wall of the annular groove 72 and the outer surface of the slip ring 73. During the application of this device, when the spray mechanism 7 is working, the second motor 71 is fixed to the top of the top cover 4. On the side, after startup, its output end drives the gear 78 to rotate. The gear 78 meshes with the gear ring 74, driving the gear ring 74 to rotate in the annular groove 72. The connecting ring 75 at the bottom of the gear ring 74 rotates synchronously, driving the spray frame 76, which is arranged in a ring at equal intervals, to rotate around the axis. The spray head 77 at the bottom of the spray frame 76 rotates synchronously with the spray frame 76, expanding the salt spray coverage area. The slip ring 73 and the annular groove 72 are both designed with a convex cross section, and wear-resistant pads are provided on the inner wall and outer surface, which not only restricts the axial displacement of the slip ring 73, but also reduces frictional resistance and ensures smooth rotation. The rotary joint 64 of the supply mechanism 6 is connected to the input end of the spray frame 76, and the liquid raw material is delivered to each spray head 77. During the rotation of the spray frame 76, the raw material is converted into salt spray through the spray head 77 and evenly sprayed into the salt spray test machine body 2. The second motor 71 drives the gear 78 and gear ring 74 to achieve dynamic rotation spraying, which significantly improves the uniformity of salt spray distribution and ensures the accuracy of test results.

[0030] Operating principle and advantages: The adjusting mechanism 3 of this device consists of a first motor 32, a lead screw 33, a slider 34, a frame 31, a connecting rod 35, and a top cover 4. When maintenance of the spraying mechanism 7 is required, the first motor 32 is started, and its output shaft drives the lead screw 33 to rotate. The lead screw 33 and the slider 34 are connected by a thread. During the rotation of the lead screw 33, the slider 34 slides up and down along a pre-set slide rail inside the frame 31. The vertical displacement of the slider 34 is transmitted to the top cover 4 through the connecting rod 35, thereby achieving synchronous lifting and lowering of the top cover 4. By driving the slider 34 to move upward, the device drives... The connecting rod 35 lifts the top cover 4, allowing the spray mechanism 7 installed below the top cover 4 to be pulled out from the slot 5 at the top of the salt spray test chamber body 2, thus fully exposing the spray mechanism 7. This facilitates cleaning, inspection, and maintenance by the operator. After maintenance, the first motor 32 is restarted, controlling the lead screw 33 to rotate in the opposite direction, driving the slider 34 to slide down along the frame 31. The slider 34, through the connecting rod 35, moves the top cover 4 down, allowing the top cover 4 to cover the top of the slot 5 again, completing the reset and installation of the spray mechanism 7. The setting of this adjustment mechanism 3 effectively improves the convenience and efficiency of equipment maintenance operations.

[0031] The spraying mechanism 7 and the supply mechanism 6 work together to achieve the function of uniform salt spraying. During the supply process, after the liquid material is injected into the water tank 61 through the feeding pipe 65, the water pump 62 is started and the liquid in the water tank 61 is transported to the rotary joint 64 through the hose 63. The rotary joint 64 acts as the hub for liquid transmission and stably transports the liquid to the spray frame 76. The spray head 77 installed at the bottom of the spray frame 76 converts the liquid into salt spray and sprays it out through the internal flow channel design and pressure, so that the salt spray enters the salt spray test chamber.

[0032] Regarding spray uniformity control, after the second motor 71 starts, its output shaft drives the gear 78 to rotate. The gear 78 meshes with the gear ring 74, and the rotation of the gear 78 drives the gear ring 74 to perform circumferential motion. The gear ring 74 is fixedly connected to the slip ring 73. When the gear ring 74 rotates, it drives the slip ring 73 to rotate synchronously, which in turn drives the multiple spray frames 76 below to rotate through the connecting ring 75. During the rotation, each spray frame 76 and its bottom spray head 77 spray salt mist into the salt spray test chamber body 2 at different angles and trajectories. Compared with the traditional fixed spray method, this structure realizes the dynamic rotation of the spray frame 76 through mechanical transmission, which significantly expands the salt mist coverage area and improves the uniformity of salt mist distribution in the test chamber, thereby improving the accuracy and reliability of the salt spray test results. During use, the top cover 4 can be equipped with a support frame on the connecting rod 35 and the top cover 4 to improve the stability of the support of the connecting rod 35 on the top cover 4. The support frame is an existing technology and will not be described in detail here.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A salt spray test chamber for easy addition of raw materials, characterized in that: Includes a base (1), on the top of the base (1) a salt spray tester body (2) is fixedly installed, an adjustment mechanism (3) is fixedly installed on one side of the back of the salt spray tester body (2), a top cover (4) is fixedly installed on the top of the adjustment mechanism (3), a slot (5) is opened in the middle of the top of the salt spray tester body (2), the top cover (4) covers the top of the slot (5), a supply mechanism (6) is fixedly installed on the top of the top cover (4), a spray mechanism (7) is installed at the bottom of the top cover (4), and the input end of the spray mechanism (7) and the output end of the supply mechanism (6) are connected. The adjustment mechanism (3) includes a frame (31), which is fixedly installed on the back side of the salt spray tester body (2). A first motor (32) is fixedly installed at the bottom of the frame (31). A lead screw (33) is fixedly installed through the frame (31) at the output end of the first motor (32). The lead screw (33) is rotatably connected to the inside of the frame (31). A slider (34) is slidably connected inside the frame (31). The slider (34) and the lead screw (33) are threadedly connected. A connecting rod (35) is fixedly installed on the rear side of the slider (34). The top of the connecting rod (35) is fixedly connected to the top cover (4).

2. The salt spray test machine with easy-to-add raw materials according to claim 1, characterized in that: The supply mechanism (6) includes a water tank (61), which is fixedly installed on the top of the top cover (4). A water pump (62) is fixedly installed on the lower side of the water tank (61). A hose (63) is fixedly installed at the output end of the water pump (62). A rotary joint (64) is fixedly installed at the end of the hose (63). The output end of the rotary joint (64) is connected to the input end of the spray mechanism (7). The rotary joint (64) is rotatably connected to the middle of the top cover (4).

3. A salt spray test chamber for easy addition of raw materials according to claim 2, characterized in that: A feeding pipe (65) is fixedly installed on the top of the water tank (61), and a sealing cap (66) is threadedly connected to the top of the feeding pipe (65).

4. The salt spray test machine with easy-to-add raw materials according to claim 3, characterized in that: The water tank (61) has an observation window (67) on its front, and a tempered glass plate is fixedly connected inside the observation window (67).

5. The salt spray test chamber of claim 2, wherein: A support frame (68) is fixedly installed on the top of the top cover (4), and the rotary joint (64) is fixedly connected to the inner side of the support frame (68).

6. The salt spray test chamber of claim 2, wherein: The spraying mechanism (7) includes a second motor (71) and an annular groove (72). The second motor (71) is fixedly installed on one side of the top of the top cover (4). The annular groove (72) is opened at the bottom of the top cover (4). A slip ring (73) is rotatably connected inside the annular groove (72). A toothed ring (74) is fixedly installed at the bottom of the slip ring (73). A connecting ring (75) is fixedly connected at the bottom of the toothed ring (74). A spray frame (76) is fixedly connected at equal intervals in a ring shape at the bottom of the connecting ring (75). A spray head (77) is fixedly connected at equal intervals in a linear arrangement at the bottom of the spray frame (76). The input end of the spray frame (76) is connected to the rotating nozzle. A gear (78) is fixedly connected through the top cover (4) at the output end of the second motor (71). The gear (78) and the toothed ring (74) are meshed together.

7. A salt spray test chamber for easy addition of raw materials according to claim 6, characterized in that: The overall cross-sectional shape of the slip ring (73) is convex, and the internal cross-sectional shape of the annular groove (72) is also convex. Wear-resistant pads are fixedly connected to the inner wall of the annular groove (72) and the outer surface of the slip ring (73).

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