Spraying structure of salt spray test box

Abstract

The utility model discloses a spray structure of a salt spray test chamber, which comprises a test chamber and a spray mechanism, the spray mechanism is arranged in the test chamber, and the spray mechanism comprises a brine tank, a salt spray pipe, a mounting seat, a screw rod, a ball nut, a discharge pipe and a connecting hose, a salt water tank is arranged in the middle of the interior of the test box, a salt mist spraying pipe connected with the mist spraying assembly is installed at the top of the salt water tank, an installation base is arranged at the position, located at the top of the salt water tank, in the test box in the horizontal direction, and a ball nut horizontally moves along the interior of the installation base and drives a discharging pipe to move; the top of the spraying device sprays out salt mist from different positions in the test box, so that uniform spraying of the internal space of the test box is realized, the uniformity of salt mist concentration in each area in the test box is kept, and the precision of a detection result is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of salt spray test detection components, and in particular to a spray structure for a salt spray test chamber. Background Technology

[0002] A salt spray test chamber is a device used to test the corrosion performance of samples in a salt spray environment. It is mainly used for salt spray corrosion testing of parts, electronic components, protective layers of metal materials, and industrial products. It evaluates the corrosion resistance of materials by simulating a salt spray environment. It is commonly used in industries such as machinery, defense, light industry, electronics, and instrumentation to study the environmental adaptability and reliability of products. The spray assembly is one of the core components inside the salt spray test chamber.

[0003] Existing salt spray test chamber spray assemblies have the following drawbacks: They are typically fixed in the center of the chamber. However, for different sample sizes, some customers require larger salt spray test chambers with greater internal space. The existing fixed spray assemblies can cause uneven salt spray concentration distribution within the chamber during operation, affecting test accuracy. Therefore, we propose a new spray structure for salt spray test chambers. Utility Model Content

[0004] The main objective of this invention is to provide a spray structure for a salt spray test chamber. By using a spray mechanism installed inside the test chamber, the spray components can be driven to move horizontally and reciprocally inside the test chamber, thereby ensuring the uniformity of salt spray concentration inside the test chamber and effectively solving the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A spray structure for a salt spray test chamber includes a test chamber and a spray mechanism. The spray mechanism is installed inside the test chamber and includes a salt water tank, a salt spray nozzle, a mounting base, a lead screw, a ball nut, a discharge pipe, and a connecting hose. The salt water tank is located in the middle of the test chamber, and the salt spray nozzle connected to the spray assembly is installed on the top of the salt water tank. The mounting base is horizontally located at the top of the salt water tank inside the test chamber. The lead screw is horizontally installed inside the mounting base, and a ball nut is fitted onto the surface of the lead screw. A discharge pipe is installed on one side of the outer circumference of the ball nut, penetrating the mounting base and extending to the top of the test chamber. A connecting hose is detachably connected between the bottom end of the discharge pipe and the salt spray nozzle.

[0007] Furthermore, a shielding mechanism is also included. A shielding mechanism is provided between the top of the mounting base and the discharge pipe. The shielding mechanism includes a groove, a corrugated rubber strip, and a through hole. A groove is horizontally opened at the top of the mounting base, and the discharge pipe passes through the groove. A corrugated rubber strip is installed inside the groove, with both sides of the corrugated rubber strip inserted into the groove. A through hole is opened in the middle of the corrugated rubber strip, and the discharge pipe passes through the through hole. The corrugated rubber strip is arranged between the grooves at the top of the mounting base. The discharge pipe passes through the through hole and is connected to the corrugated rubber strip. When the position of the discharge pipe is fixed, the corrugated rubber strip remains in the same position. When the discharge pipe moves horizontally along the mounting base and the groove, it will squeeze the corrugated rubber strip in the direction of movement and stretch the corrugated rubber strip at the other end. Using the corrugated rubber strip as a sealing component between the grooves does not affect the horizontal movement of the discharge pipe. At the same time, no matter where the discharge pipe moves inside the groove, the corrugated rubber strip can be kept full of the gap between the grooves, thereby reducing the entry of salt spray into the mounting base and extending the service life of the internal components of the mounting base.

[0008] Furthermore, a motor is installed on one side of the test chamber surface, and the motor power output end is connected to the lead screw power input end; the motor power end is connected to the lead screw connection end after being reduced by a reducer. During operation, only the forward and reverse rotation of the motor power end needs to be controlled to drive the forward and reverse rotation of the control lead screw, thereby realizing the adjustment of the position of the discharge pipe.

[0009] Furthermore, a collar is fitted around the top of the discharge pipe, and a conical plug located at the top of the discharge end of the discharge pipe is fixedly connected to the top of the collar by a support rod; the conical plug is fitted around the top of the discharge pipe by the collar and the straight rod, and when the salt spray is discharged from the discharge pipe, it contacts the conical plug, and the conical plug plays a diffusing role, causing the salt spray to disperse in all directions.

[0010] Furthermore, a rubber ring is bonded to the inner wall of the through hole, and the outer wall of the discharge pipe is attached to the inner wall of the rubber ring; the rubber ring structure located between the inside of the through hole and the outer wall of the discharge pipe maintains the sealing of the connection between the discharge pipe and the corrugated rubber ring.

[0011] Compared with the prior art, this utility model has the following advantages: The salt water tank inside the test chamber discharges salt water in the form of salt mist through the salt mist spray pipe via a spray assembly. A mounting base is horizontally installed on the top of the salt water tank. The discharge pipe is fixed to the side of the ball nut and connected to the salt mist spray pipe via a connecting hose. When the spray assembly is used inside a large test chamber, the motor can be turned on, and the motor drives the lead screw to rotate. When it rotates, the ball nut moves horizontally along the inside of the mounting base, driving the discharge pipe to move. The connecting hose maintains the connection between the discharge pipe and the salt mist spray pipe, and its long length and soft material do not affect the movement of the discharge pipe. When the discharge pipe moves, its top sprays salt mist from different positions inside the test chamber, achieving the goal of disinfecting the interior of the test chamber. Uniform spraying maintains the uniformity of salt spray concentration in all areas of the test chamber, ensuring the accuracy of test results. Corrugated rubber strips are installed between the grooves at the top of the mounting base. The discharge pipe is connected to the corrugated rubber strip through a through-hole structure. When the discharge pipe is fixed in position, the corrugated rubber strip remains in place. As the discharge pipe moves horizontally along the mounting base and grooves, it squeezes the corrugated rubber strip in the direction of movement, simultaneously stretching the other end of the corrugated rubber strip. Using the corrugated rubber strip as a sealing component between the grooves does not affect the horizontal movement of the discharge pipe. Furthermore, regardless of the position of the discharge pipe within the grooves, the corrugated rubber strip fills the gaps between the grooves, thereby reducing salt spray entering the mounting base and extending the service life of the internal components. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the spray structure of a salt spray test chamber according to the present invention.

[0013] Figure 2 This is a schematic diagram of the internal structure of a salt spray test chamber according to the present invention.

[0014] Figure 3 This is a top view of the mounting base of the spray structure of a salt spray test chamber according to the present invention.

[0015] Figure 4 This is a schematic diagram of the corrugated rubber strip structure of the spray structure of a salt spray test chamber according to the present invention.

[0016] In the diagram: 1. Test chamber; 2. Spraying mechanism; 201. Salt water tank; 202. Salt spray nozzle; 203. Mounting base; 204. Motor; 205. Lead screw; 206. Ball nut; 207. Discharge pipe; 208. Connecting hose; 209. Collar; 210. Support rod; 211. Conical plug; 3. Shielding mechanism; 301. Slide groove; 302. Corrugated rubber strip; 303. Through hole; 304. Rubber ring. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1-4 As shown, a spray structure of a salt spray test chamber includes a test chamber 1 and a spray mechanism 2. The spray mechanism 2 is installed inside the test chamber 1. The spray mechanism 2 includes a salt water tank 201, a salt spray nozzle 202, a mounting base 203, a lead screw 205, a ball nut 206, a discharge pipe 207, and a connecting hose 208. The salt water tank 201 is located in the middle of the test chamber 1, and the salt spray nozzle 202 connected to the spray assembly is installed on the top of the salt water tank 201. The mounting base 203 is horizontally located at the top of the salt water tank 201 inside the test chamber 1. The lead screw 205 is horizontally installed inside the mounting base 203, and the ball nut 206 is fitted on the surface of the lead screw 205. The discharge pipe 207, which penetrates the mounting base 203 and extends to the top of the test chamber 1, is installed on one side of the outer circumference of the ball nut 206. The connecting hose 208 is detachably connected between the bottom end of the discharge pipe 207 and the salt spray nozzle 202.

[0019] The system also includes a shielding mechanism 3. A shielding mechanism 3 is provided between the top of the mounting base 203 and the discharge pipe 207. The shielding mechanism 3 includes a groove 301, a corrugated rubber strip 302, and a through hole 303. A groove 301 is horizontally formed at the top of the mounting base 203, and the discharge pipe 207 passes through the groove 301. A corrugated rubber strip 302 is installed between the grooves, with both sides of the strip inserted into the groove. A through hole 303 is formed in the middle of the corrugated rubber strip 302, and the discharge pipe 207 passes through the through hole. The corrugated rubber strip 302 is positioned between the grooves 301 at the top of the mounting base 203, and the discharge pipe 207 passes through the through hole. Structure 303 is connected to corrugated rubber strip 302. When the position of the discharge pipe 207 is fixed, the corrugated rubber strip 302 remains in the same position. When the discharge pipe 207 moves horizontally along the mounting base 203 and the slide groove 301, it will squeeze the corrugated rubber strip 302 in the direction of movement and stretch the corrugated rubber strip 302 at the other end. Using the corrugated rubber strip 302 as a sealing component between the slide grooves 301 does not affect the horizontal movement of the discharge pipe 207. At the same time, no matter where the discharge pipe 207 moves to inside the slide groove 301, the corrugated rubber strip 302 can be kept full of the gap between the slide grooves 301, thereby reducing the entry of salt spray into the interior of the mounting base 203 and extending the service life of the internal components of the mounting base 203.

[0020] The test chamber 1 has a motor 204 installed on one side of its surface, with the power output end of the motor 204 connected to the power input end of the lead screw 205. A collar 209 is fitted around the top of the discharge pipe 207, and a conical plug 211 located at the top of the discharge end of the discharge pipe 207 is fixedly connected to the top of the collar 209 via a support rod 210. The power end of the motor 204 is connected to the connection end of the lead screw 205 after being reduced in speed by a reducer. During operation, the forward and reverse rotation of the power end of the motor 204 can drive the forward and reverse rotation of the control lead screw 205 to adjust the position of the discharge pipe 207. The top of the discharge pipe 207 is fitted with a conical plug 211 via the collar 209 and a straight rod. When salt spray is discharged from the discharge pipe 207, it contacts the conical plug 211, which acts as a diffuser, causing the salt spray to disperse in all directions.

[0021] The inner wall of the through hole 303 is bonded with a rubber ring 304, and the outer wall of the discharge pipe 207 is attached to the inner wall of the rubber ring 304. The structure of the rubber ring 304 located between the inside of the through hole 303 and the outer wall of the discharge pipe 207 maintains the sealing of the connection between the discharge pipe 207 and the corrugated rubber ring 304.

[0022] It should be noted that this utility model is a spray structure for a salt spray test chamber. During operation, the salt water tank 201 inside the test chamber 1 discharges salt water in the form of salt mist through the salt mist spray pipe 202 via the spray assembly. A mounting base 203 is horizontally mounted on the top of the salt water tank 201. The discharge pipe 207 is fixed to the side of the ball nut 206 and connected to the salt mist spray pipe 202 via a connecting hose 208. When the spray assembly is used inside a large test chamber 1, the motor 204 can be turned on. The motor 204 drives the lead screw 205 to rotate. During rotation, the ball nut 206 moves horizontally along the inside of the mounting base 203, causing the discharge pipe 207 to move. The connecting hose 208 maintains the connection between the discharge pipe 207 and the salt mist spray pipe 202. Furthermore, its relatively long length and soft material do not hinder the movement of the discharge pipe 207. As the discharge pipe 207 moves, its top sprays salt mist from different positions inside the test chamber 1, achieving the desired effect of spraying salt mist from the inside of the test chamber 1. The uniform spraying of salt spray in the test chamber 1 ensures the uniformity of salt spray concentration in all areas and guarantees the accuracy of the test results. A corrugated rubber strip 302 is positioned between the grooves 301 at the top of the mounting base 203. The discharge pipe 207 passes through the through-hole 303 and connects to the corrugated rubber strip 302. When the discharge pipe 207 is fixed in position, the corrugated rubber strip 302 remains in place. As the discharge pipe 207 moves horizontally along the mounting base 203 and the grooves 301, it compresses the corrugated rubber strip 302 in the direction of movement and stretches the other end of the corrugated rubber strip 302. Using the corrugated rubber strip 302 as a sealing component between the grooves 301 does not affect the horizontal movement of the discharge pipe 207. Furthermore, regardless of the position of the discharge pipe 207 within the grooves 301, the corrugated rubber strip 302 fills the gaps between the grooves 301, thereby reducing the amount of salt spray entering the mounting base 203 and extending the service life of the internal components of the mounting base 203.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A spray structure of a salt spray test chamber comprising a test chamber (1), characterized in that, The test box (1) is internally provided with a spraying mechanism (2), the spraying mechanism (2) comprises a salt water tank (201), a salt spray nozzle (202), a mounting seat (203), a lead screw (205), a ball nut (206), a discharge pipe (207) and a connecting hose (208), the salt water tank (201) is arranged at an intermediate position in the interior of the test box (1), and the salt spray nozzle (202) connected with the spraying assembly is arranged on the top of the salt water tank (201); the mounting seat (203) is arranged horizontally at the top of the salt water tank (201) in the interior of the test box (1); the lead screw (205) is arranged horizontally in the interior of the mounting seat (203), and the surface of the lead screw (205) is connected with the ball nut (206) in a matched mode; the discharge pipe (207) extending through the mounting seat (203) and extending to the top of the test box (1) is arranged on one side of the outer periphery of the ball nut (206); and the connecting hose (208) is detachably connected between the bottom end of the discharge pipe (207) and the salt spray nozzle (202).

2. The spray structure of a salt spray test chamber according to claim 1, wherein: The mounting seat (203) is provided with a shielding mechanism (3) between the top and the discharge pipe (207), the shielding mechanism (3) comprises a sliding groove (301), a corrugated rubber strip (302) and a through hole (303), the sliding groove (301) is horizontally arranged at the top end of the interior of the mounting seat (203), and the discharge pipe (207) penetrates through the interior of the sliding groove (301); the corrugated rubber strip (302) is arranged between the interiors of the sliding grooves (301), and the corrugated rubber strip (302) is inserted into the interiors of the sliding grooves (301) on both sides; and the through hole (303) is arranged at the intermediate position in the interior of the corrugated rubber strip (302), and the discharge pipe (207) penetrates through the interior of the through hole (303).

3. The spray structure of a salt spray test chamber according to claim 1, wherein: The surface of the test box (1) is provided with a motor (204), and the power output end of the motor (204) is connected with the power input end of the lead screw (205).

4. The spray structure of a salt spray test chamber according to claim 1, wherein: The discharge pipe (207) is provided with a sleeve ring (209) on the outer periphery of the top, the conical plug (211) arranged at the top of the discharge end of the discharge pipe (207) is fixedly connected with the top of the sleeve ring (209) through a supporting rod (210).

5. The spray structure of a salt spray test chamber according to claim 2, wherein: The inner wall of the through hole (303) is bonded with a rubber ring (304), and the outer wall of the discharge pipe (207) is attached to the inner wall of the rubber ring (304).

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