A composite salt spray test chamber with uniform spraying
By employing a spray assembly consisting of a spiral-shaped gathering tube and a rectangular array of atomizing nozzles in a composite salt spray test chamber, combined with an L-shaped bracket and a clamping plate structure, the problems of uneven spraying and complex disassembly and assembly were solved, achieving uniform salt spray distribution and simplified maintenance, thereby improving testing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 苏州旭博检测服务有限公司
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-04
AI Technical Summary
The uneven spraying in existing composite salt spray test chambers leads to inconsistent experimental environments for the tested objects, and the disassembly and assembly of the spray components are cumbersome, affecting the accuracy of testing and maintenance efficiency.
The spray assembly is designed with a spiral-shaped collecting tube and a rectangular array of atomizing nozzles, combined with an L-shaped bracket and a clamping plate structure to achieve uniform salt spraying. Magnetic strips and anti-slip pads simplify the assembly and disassembly process of the collecting tube.
It improves the accuracy of testing objects, simplifies the disassembly and assembly steps of the spray assembly, reduces maintenance workload, and improves the efficiency of equipment use.
Smart Images

Figure CN224594435U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of material corrosion resistance testing, and in particular relates to a composite salt spray test chamber with uniform spraying. Background Technology
[0002] To understand the corrosion resistance of produced materials, corrosion resistance testing is necessary. The main purpose is to evaluate the material's resistance to corrosion in specific environments, providing a scientific basis for material selection and use. When discussing corrosion resistance testing, composite salt spray test chambers are essential. These chambers simulate marine or saline environments to accelerate corrosion testing of produced materials and assess their corrosion resistance. However, they still have the following shortcomings in practical use: 1. In the use of a composite salt spray test chamber, salt spray is sprayed through a spray tower set inside the chamber, and a cover is installed on the upper surface of the chamber to effectively prevent salt spray leakage and reduce environmental damage. This allows for the testing of the corrosion resistance of the objects inside the chamber. However, the range of salt spray from a single spray tower is limited. Objects closer to the spray tower will adhere to more salt spray, while objects farther away will adhere to relatively less salt spray. This will cause inconsistencies in the experimental environment of the objects and reduce the accuracy of the corrosion resistance test. 2. Secondly, since the internal environment of the enclosure is in a salt spray environment during use, the internal components will more or less adhere to the salt spray. It is necessary to clean the salt scale on the components regularly. Therefore, it is necessary to simplify the disassembly and assembly steps of the components, such as the spray assembly, to reduce the workload of disassembly and assembly later.
[0003] To address these issues, we provide a composite salt spray test chamber with uniform spraying. Utility Model Content
[0004] The purpose of this utility model is to provide a composite salt spray test chamber with uniform spraying. By setting up a spraying component, the salt spray is sprayed more evenly inside the chamber, and the salt spray environment inside the chamber is consistent, which helps to improve the accuracy of the test objects. In addition, the connection component simplifies the disassembly and assembly steps of the collecting tube, which facilitates later maintenance and replacement, thereby solving the technical problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a composite salt spray test chamber with uniform spraying, comprising a chamber body, inside which is a spraying assembly, the spraying assembly including a gathering tube disposed inside the chamber body, the gathering tube having a U-shaped structure, and a rectangular array of atomizing nozzles fixedly connected to the lower surface of the gathering tube, the atomizing nozzles being distributed along the width direction of the gathering tube; inside the chamber body is a connecting assembly, the connecting assembly including supports symmetrically connected to the two inner side walls of the chamber body, the supports having an L-shaped structure, the upper surface of the transverse section of the supports having a fixed clamping plate, the gathering tube being erected on the upper surface of the transverse section of the supports, the supports being distributed along the length direction of the gathering tube.
[0006] The present invention is further configured such that the lid hinged to the upper surface of the box body has a bottom opening structure, the lid is made of transparent plastic, and the side wall of the lid has a groove.
[0007] The present invention is further configured such that there are symmetrically fixed connecting rods on the two inner side walls of the box, and a collection hopper is provided inside the ferrule fixed to the end of the connecting rod. A storage groove is opened on the side wall of the box, and the lower end of the guide pipe connected to the lower end of the collection hopper is connected to the storage groove. A measuring cylinder is provided inside the storage groove, and magnetic blocks are provided on the bottom of the storage groove and the lower surface of the measuring cylinder.
[0008] The present invention is further configured such that a control box is fixedly attached to the side wall of the box, and a cylinder cover is provided on the upper surface of the control box through the upper surface of the fixed storage cylinder.
[0009] The present invention is further configured such that a pump is installed at the bottom of the inner side of the box, the upper end of a connecting pipe connected to one end of the pump is connected to the inside of the storage cylinder, and the upper end of a connecting pipe connected to the other end of the pump is connected to a collecting pipe.
[0010] The present invention is further provided that the vertical section of the bracket has an anti-slip pad on its side wall, and the side wall of the card plate has an anti-slip pad on its side wall.
[0011] The present invention is further configured such that the upper surface of the transverse section of the bracket has an embedded magnetic strip, and the lower surface of the gathering tube has an embedded magnetic strip.
[0012] This utility model has the following beneficial effects: 1. This utility model, by setting up a spray assembly, introduces the prepared salt water into the storage cylinder. When the pump is powered on, the salt water inside the storage cylinder is drawn into the collection tube. The salt water inside the collection tube is sprayed into the inside of the chamber through multiple atomizing nozzles, so that the salt mist is more evenly distributed inside the chamber. The test objects inside the chamber are tested under the same salt mist environment, which improves the accuracy of the experiment.
[0013] 2. This utility model, by setting up a connecting component, allows the gathering tube to be pulled upwards and moved upwards to detach from the bracket, thus realizing the disassembly of the gathering tube; conversely, it locks the gathering tube on the bracket, simplifying the disassembly and assembly steps of the gathering tube, facilitating the disassembly, assembly, maintenance and replacement of the gathering tube, and reducing the workload. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0015] Figure 1 A three-dimensional schematic diagram of a composite salt spray test chamber with uniform spraying. Figure 1 ; Figure 2 A three-dimensional schematic diagram of a composite salt spray test chamber with uniform spraying. Figure 2 ; Figure 3 A three-dimensional schematic diagram of a composite salt spray test chamber with uniform spraying. Figure 3 ; Figure 4 This is a cross-sectional schematic diagram of a composite salt spray test chamber with uniform spraying.
[0016] The attached diagram lists the components represented by each number as follows: 1-Box body, 101-Control box, 102-Box cover, 103-Connecting rod, 103a-Cladle, 103b-Collection hopper, 103c-Metering cylinder, 103d-Guide pipe, 104-Storage tank, 2-Spray assembly, 201-Gathering pipe, 201a-Atomizing nozzle, 202-Pump, 202a-Connecting pipe, 202b-Connecting pipe, 203-Storage cylinder, 203a-Cylinder cover, 3-Connecting assembly, 301-Bracket, 302-Anti-slip pad, 303-Clamping plate. Detailed Implementation
[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1, please refer to Figure 1 , Figure 2 and Figure 3This utility model is a composite salt spray test chamber with uniform spraying, including a chamber body 1, a control box 101, a cover 102, a connecting rod 103, a ferrule 103a, a collection hopper 103b, a measuring cylinder 103c, and a guide pipe 103d. The cover 102 is used to cover the upper opening of the chamber body 1, effectively preventing salt spray leakage, and facilitating the loading and unloading of test objects inside the chamber body 1. Specifically, the side wall of the box 1 has a control box 101 fixedly attached, the upper surface of the box 1 has a hinged box cover 102, the side wall of the box cover 102 has a groove, the side wall of the box 1 has a storage slot 104, the inside of the storage slot 104 has a measuring cylinder 103c, the lower surface of the measuring cylinder 103c and the bottom of the storage slot 104 both have embedded magnetic blocks, the inner side wall of the box 1 has a horizontally fixed connecting rod 103, the end of the connecting rod 103 has a vertically fixed sleeve 103a, the inside of the sleeve 103a has a fitted collection hopper 103b, the lower surface of the collection hopper 103b has a connected guide pipe 103d, the lower end of the guide pipe 103d is connected to the inside of the storage slot 104. Furthermore, the lid 102 is made of transparent plastic, and the two connecting rods 103 are symmetrically arranged; The operation process of this embodiment is as follows: an external force is applied to the groove on the box cover 102, and the box cover 102 moves in an arc to open or close the box cover 102; the sprayed salt mist inside the box 1 will fall freely into the inside of the collection hopper 103b, and then enter the inside of the metering cylinder 103c through the guide pipe 103d.
[0019] Example 2, please refer to Figure 1 and Figure 4 Based on the first specific embodiment, a spray assembly 2 is provided. The spray assembly 2 includes a gathering tube 201, an atomizing nozzle 201a, a pump 202, a connecting tube 202a, a connecting tube 202b, a storage cylinder 203, and a cylinder cover 203a. The connecting atomizing nozzles 201a arranged in a rectangular array on the lower surface of the gathering tube 201 allow the salt water entering the gathering tube 201 to be sprayed at multiple locations simultaneously. This is more conducive to the uniform spraying of salt mist inside the chamber 1, so that the test objects inside the chamber 1 can be tested under the same salt mist environment, thereby improving the accuracy of the experiment. Specifically, the gathering tube 201 is horizontally arranged inside the housing 1. The lower surface of the gathering tube 201 has an atomizing nozzle 201a that is connected and fixed. The upper surface of the control box 101 has a storage cylinder 203 that is connected through and fixed. The upper surface of the storage cylinder 203 has a cylinder cover 203a. The bottom of the control box 101 has a pump 202 installed. One end of the pump 202 has a connecting pipe 202b that is connected. The upper end of the connecting pipe 202b is connected to the inside of the storage cylinder 203. The other end of the pump 202 has a connecting pipe 202a that is connected. The upper end of the connecting pipe 202a is connected to the inside of the gathering tube 201. Furthermore, the gathering tube 201 has a U-shaped structure, the atomizing nozzles 201a are distributed in a rectangular array, and the atomizing nozzles 201a are arranged along the width direction of the gathering tube 201. The operation process of this embodiment is as follows: remove the cap 203a, introduce the prepared salt water into the storage cylinder 203, put the cap 203a back on the storage cylinder 203, turn on the pump 202, and the salt water inside the storage cylinder 203 enters the collection tube 201. The salt water inside the collection tube 201 is sprayed into the inside of the chamber 1 in the form of salt mist through the atomizing nozzle 201a, so that the test object inside the chamber 1 can be tested.
[0020] Example 3, please refer to Figure 1 and Figure 4 Based on specific embodiments one and two, a connecting component 3 is provided. The connecting component 3 includes a bracket 301, an anti-slip pad 302, and a clamping plate 303. The bracket 301 is used to support the gathering tube 201. The cooperation between the clamping plate 303 and the bracket 301 is used to lock the position of the gathering tube 201 for more stable salt spraying. The anti-slip pad 302 is used to increase friction and further increase the stability of the gathering tube 201. Specifically, the bracket 301 is fixed to the inner side wall of the box 1, and the bracket 301 is set along the length of the gathering tube 201. The gathering tube 201 is placed on the upper surface of the bracket 301. The upper surface of the bracket 301 has a fixed clamping plate 303. The side wall of the bracket 301 has an anti-slip pad 302. The side wall of the clamping plate 303 has an anti-slip pad 302. The lower surface of the gathering tube 201 has an embedded magnetic strip. The upper surface of the bracket 301 has an embedded magnetic strip. Furthermore, the two supports 301 are symmetrically arranged, and the supports 301 have an L-shaped structure; The operation process of this embodiment is as follows: when it is necessary to disassemble the gathering tube 201, open the box cover 102, apply an upward external force to the gathering tube 201, the two magnetic strips separate, and the gathering tube 201 is removed from the connecting assembly 3; otherwise, the gathering tube 201 is locked on the connecting assembly 3.
[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. A composite salt spray test chamber with uniform spraying, comprising a chamber body (1), characterized in that: The housing (1) has a spray assembly (2) inside. The spray assembly (2) includes a gathering tube (201) inside the housing (1). The gathering tube (201) has a U-shaped structure. The lower surface of the gathering tube (201) has a rectangular array of atomizing nozzles (201a) that are connected and fixed together. The atomizing nozzles (201a) are distributed along the width direction of the gathering tube (201). The box (1) has a connecting component (3) inside. The connecting component (3) includes a bracket (301) symmetrically connected to the two inner side walls of the box (1). The bracket (301) has an L-shaped structure. The upper surface of the transverse section of the bracket (301) has a fixed plate (303). The gathering tube (201) is erected on the upper surface of the transverse section of the bracket (301). The bracket (301) is distributed along the length direction of the gathering tube (201).
2. The composite salt spray test chamber with uniform spraying as described in claim 1, characterized in that: The lid (102) hinged to the upper surface of the box body (1) has a bottom opening structure. The lid (102) is made of transparent plastic and has a groove on the side wall.
3. The composite salt spray test chamber with uniform spraying according to claim 2, characterized in that: The box (1) has symmetrically fixed connecting rods (103) on its two inner side walls. The end of the connecting rod (103) is fixed to a sleeve (103a) which has a collection hopper (103b) inside. The side wall of the box (1) has a storage slot (104). The lower end of the guide pipe (103d) connected to the lower end of the collection hopper (103b) is connected to the storage slot (104). The storage slot (104) has a measuring cylinder (103c) inside. The bottom of the storage slot (104) and the lower surface of the measuring cylinder (103c) both have magnetic blocks.
4. The composite salt spray test chamber with uniform spraying according to claim 1, characterized in that: The side wall of the box (1) has a control box (101) fixedly attached, and the upper surface of the control box (101) has a cover (203a) installed on the upper surface of the storage cylinder (203) that is fixedly attached through it.
5. A composite salt spray test chamber with uniform spraying as described in claim 4, characterized in that: The bottom of the box (1) is equipped with a pump (202). The upper end of the connecting pipe (202b) connected to one end of the pump (202) is connected to the inside of the storage cylinder (203). The upper end of the connecting pipe (202a) connected to the other end of the pump (202) is connected to the collecting pipe (201).
6. The composite salt spray test chamber with uniform spraying according to claim 1, characterized in that: The vertical section of the bracket (301) has anti-slip pads (302) on its side wall, and the side wall of the card plate (303) has anti-slip pads (302).
7. A composite salt spray test chamber with uniform spraying as described in claim 1, characterized in that: The upper surface of the transverse section of the bracket (301) is inlaid with magnetic strips, and the lower surface of the gathering tube (201) is inlaid with magnetic strips.