Rapid exhaust structure for salt mist box

By designing the combination of air inlet and exhaust components, the rapid exhaust of the salt spray box is achieved, the problem of low efficiency of the exhaust system in the prior art is solved, and the accuracy and sealing of the test are improved.

CN223139348UActive Publication Date: 2025-07-22JIANGSU BEIDOU SATELLITE NAVIGATION DETECTION CENT CO LTD
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Patent Information

Application Number
CN202422246491.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-07-22
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

The exhaust system of existing salt spray boxes cannot quickly and efficiently discharge excess gas, resulting in excessive salt spray concentration, affecting the accuracy and reliability of the test, and conventional improvement methods increase engineering costs and complexity.

Method used

A fast exhaust structure including air inlet assembly and exhaust assembly is designed. The cylinder and fan group are used to match the profile frame and exhaust cylinder to communicate with the salt spray box through the communication port. The fan group is vigorously pumped to achieve rapid exhaust, and a seal is formed when necessary to avoid air leakage.

Benefits of technology

The rapid exhaust of the salt spray box is achieved, the sealing and exhaust efficiency are improved, the accuracy and consistency of the test are ensured, and the air leakage is avoided.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223139348U_ABST
Patent Text Reader

Abstract

The utility model provides a quick exhaust structure for a salt mist box, which comprises a salt mist box body, an air inlet assembly and an exhaust assembly, the right side of the salt mist box body is provided with the air inlet assembly for quick air inlet, and the upper end of the salt mist box is provided with the exhaust assembly for quick exhaust. Compared with the prior art, the salt mist box has the advantages that the exhaust pipe and the exhaust assembly are arranged, the exhaust cylinder is communicated with the interior of the salt mist box body through the two second communication ports and the two first communication ports, the fan set on the mounting plate is started at the moment, and air in the exhaust cylinder is rapidly exhausted through the exhaust port under the powerful drawing action of the fan set; according to the salt mist box, the air in the salt mist box body is rapidly pumped out, the purpose of rapidly exhausting the air in the salt mist box body is achieved, the exhaust pipe and the exhaust assembly can form sealing when necessary, air in the salt mist box body is prevented from leaking outwards, and the exhaust efficiency can be guaranteed on the premise that the sealing performance of the salt mist box body is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of salt spray chambers, and particularly relates to a rapid exhaust structure for a salt spray chamber. Background Technique

[0002] During the salt spray test, the generation and diffusion speed of salt spray is relatively fast. If the exhaust system cannot timely discharge the excessive gas, it may lead to too high salt spray concentration, thus affecting the accuracy and reliability of the test. The main reason for this shortcoming is related to the current structural design of the salt spray chamber. Many salt spray chambers fail to fully optimize the layout of the air flow path and the air inlet and outlet, resulting in increased air flow resistance and decreased exhaust efficiency. In addition, the existing exhaust equipment often uses a single exhaust port, which cannot meet the requirement of rapid exhaust. Especially after a long-term test, the air pressure difference that may occur in different regions will further affect the exhaust effect.

[0003] To address these problems, the conventional countermeasures mainly include increasing the number of exhaust ports and expanding the exhaust channels in an attempt to improve the overall exhaust capacity. However, the disadvantages of these methods are that they increase the engineering cost and complexity. The modified salt spray chamber may require a more complex control system to maintain balanced air flow and uniform salt spray distribution. In addition, simply increasing the exhaust port can improve the exhaust efficiency to a certain extent. However, if the dynamic characteristics of salt spray generation and flow inside the salt spray chamber are not comprehensively considered, it may lead to uneven flow of salt spray inside the chamber, and then cause a situation of too high local concentration, thus affecting the authenticity and consistency of the test results. Therefore, we hope to design a rapid exhaust structure for a salt spray chamber with a novel structure to solve this problem. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a rapid exhaust structure for a salt spray chamber to solve the problems mentioned in the above background technique.

[0005] The utility model is realized through the following technical solutions: A rapid exhaust structure for a salt spray chamber, comprising: a salt spray chamber body, an air inlet assembly, and an exhaust assembly. An air inlet assembly for rapid air inlet is arranged on the right side of the salt spray chamber body, and an exhaust assembly for rapid exhaust is installed on the upper end of the salt spray chamber;

[0006] An observation window is arranged on the left side of the salt spray chamber body, and an exhaust pipe is arranged on the upper side inside the salt spray chamber body. The air inlet assembly includes a housing and an air box, and the air box is arranged on the right side inside the housing;

[0007] The exhaust assembly includes an exhaust duct, a cylinder, and a profile frame. The left and right sides of the profile frame are respectively fixedly connected to the upper ends of a cylinder, and the lower ends of the two cylinders are both fixedly connected to the upper end of the salt spray box body. The inner walls of the front and rear ends of the profile frame are respectively fixedly connected to the upper ends of a connecting plate. The profile frame is fixedly connected to the front and rear sides of the upper end of the exhaust cylinder through the two connecting plates. The lower end of the exhaust cylinder is movably inserted into the interior of the exhaust duct.

[0008] As a preferred embodiment, the upper end of the exhaust duct is flush with the upper end of the salt spray box body, and the upper end of the exhaust duct is designed with an opening. A first communication port is respectively arranged on the front and rear sides of the exhaust duct. The exhaust duct is communicated with the interior of the salt spray box body through the first communication port. The arrangement of the exhaust duct, in cooperation with the exhaust assembly, can form a seal when necessary to prevent the air inside the salt spray box body from leaking out and improve the sealing performance of the salt spray box body.

[0009] As a preferred embodiment, an air inlet one is arranged on the lower side of the right surface of the outer shell. The air inlet one is communicated with the lower end of the air box. An electric push rod is installed at the bottom of the air box. A sealing plate is fixed to the upper end of the electric push rod. The sealing plate is slidably and sealingly installed at the bottom of the air box through the electric push rod.

[0010] As a preferred embodiment, second air inlets are respectively arranged on the upper surface, the upper side of the front surface, and the upper side of the rear surface of the air box. The air box is communicated with the interior of the salt spray box body through the second air inlets. The arrangement of the air box can quickly introduce the outside air into the interior of the salt spray box body when necessary.

[0011] As a preferred embodiment, the exhaust cylinder includes a cylinder body, a mounting plate, and a fan group. The mounting plate is fixedly installed inside the upper end of the cylinder body, and the fan group is fixedly installed inside the upper side of the cylinder body through the mounting plate.

[0012] As a preferred embodiment, an exhaust port is formed by penetrating upward at the upper end of the cylinder body. A second communication port is respectively opened on the front and rear sides of the lower end of the cylinder body;

[0013] The size of the second communication port is smaller than that of the first communication port. The cylinder body is communicated with the interior of the salt spray box body through the first communication port and the second communication port.

[0014] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: By setting the exhaust duct and the exhaust assembly, during actual use, when rapid exhaust is required, the two cylinders are started. The cylinders jack up the profile frame, and then the exhaust cylinder is pulled upward through the profile frame and the connecting plate. When the two cylinders reach the maximum extension stroke, the two communication ports II at the lower end of the cylinder body just align with the two communication ports I on the exhaust duct. At this time, the exhaust cylinder is in internal communication with the salt spray box body through the two communication ports II and the two communication ports I. At this time, the fan group on the mounting plate is started. Under the strong pumping action of the fan group, the air inside the exhaust cylinder is quickly pumped out through the exhaust port, and then the gas inside the salt spray box body is quickly pumped out, achieving the purpose of quickly exhausting the salt spray box body. The exhaust duct and the exhaust assembly can form a seal when necessary to avoid the leakage of the air inside the salt spray box body, and can ensure the exhaust efficiency on the premise of improving the sealing performance of the salt spray box body;

[0015] With the setting of the air inlet assembly, when rapid exhaust is required inside the salt spray box body, the electric push rod is used to pull the bottom seal plate of the air box downward. At this time, the part above the air inlet I is in communication with the bottom of the air box, and the external air quickly surges towards the air inlet II. When entering the salt spray box, it can push the air inside it towards the exhaust duct position, which helps to improve the exhaust rate of the salt spray box body. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of a rapid exhaust structure for a salt spray box of the present utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the air inlet assembly of a rapid exhaust structure for a salt spray box of the present utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the exhaust assembly of a rapid exhaust structure for a salt spray box of the present utility model.

[0020] Figure 4 It is a schematic diagram of the internal structure of the exhaust cylinder of a rapid exhaust structure for a salt spray box of the present utility model.

[0021] In the figure, 100 - salt spray box body, 110 - observation window, 120 - exhaust duct, 121 - communication port I;

[0022] 200 - Air inlet assembly, 210 - First air inlet, 220 - Outer shell, 230 - Air box, 231 - Second air inlet;

[0023] 300 - Exhaust assembly, 310 - Exhaust duct, 311 - Cylinder body, 312 - Exhaust port, 313 - Mounting plate, 314 - Fan group, 315 - Second communication port, 320 - Cylinder, 330 - Profile frame, 340 - Connecting plate. Detailed implementation

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 4 , the present invention provides a technical solution: A rapid exhaust structure for a salt spray chamber, including: a salt spray chamber body 100, an air inlet assembly 200, and an exhaust assembly 300. An air inlet assembly 200 for rapid air inlet is provided on the right side of the salt spray chamber body 100, and an exhaust assembly 300 for rapid exhaust is installed on the upper end of the salt spray chamber;

[0026] An observation window 110 is provided on the left side of the salt spray chamber body 100, and an exhaust duct 120 is provided on the upper side inside the salt spray chamber body 100. The air inlet assembly 200 includes an outer shell 220 and an air box 230, and the air box 230 is provided on the right side inside the outer shell 220;

[0027] The exhaust assembly 300 includes an exhaust duct 120, a cylinder 320, and a profile frame 330. The left and right sides of the profile frame 330 are respectively fixedly connected to the upper ends of a cylinder 320, and the lower ends of the two cylinders 320 are both fixedly connected to the upper end of the salt spray chamber body 100. The front and rear inner walls of the profile frame 330 are respectively fixedly connected to the upper ends of a connecting plate 340. The profile frame 330 is fixedly connected to the front and rear sides of the upper end of the exhaust duct 310 through two connecting plates 340, and the lower end of the exhaust duct 310 is movably inserted into the inside of the exhaust duct 120.

[0028] Please refer to Figures 1 to 2 , the upper end of the exhaust duct 120 is flush with the upper end of the salt spray chamber body 100, and the upper end of the exhaust duct 120 is designed with an opening. A first communication port 121 is respectively provided on the front and rear sides of the exhaust duct 120. The exhaust duct 120 is communicated with the inside of the salt spray chamber body 100 through the first communication port 121. The setting of the exhaust duct 120, in cooperation with the exhaust assembly 300, can form a seal when necessary to avoid the leakage of the air inside the salt spray chamber body 100 and improve the sealing performance of the salt spray chamber body 100.

[0029] An air inlet one 210 is provided at the lower side of the right surface of the outer shell 220. The air inlet one 210 is communicated with the lower end of the air box 230. An electric push rod is installed at the bottom of the air box 230. A sealing plate is fixed at the upper end of the electric push rod. The sealing plate is slidably and sealingly installed at the bottom of the air box 230 through the electric push rod.

[0030] Air inlets two 231 are respectively provided on the upper surface, the upper side of the front surface and the upper side of the rear surface of the air box 230. The air box 230 is communicated with the inside of the salt spray box body 100 through the air inlets two 231. The setting of the air box 230 can quickly introduce external air into the salt spray box body 100 when necessary.

[0031] As the first embodiment of the present utility model, when the salt spray box body 100 needs to quickly exhaust air inside, the electric push rod is used to pull the sealing plate at the bottom of the air box 230 downward. At this time, the part above the air inlet one 210 is communicated with the bottom of the air box 230, and the external air surges rapidly towards the air inlets two 231. When entering the salt spray box, it can push the air inside towards the position of the exhaust pipe 120, which helps to improve the exhaust rate of the salt spray box body 100.

[0032] Please refer to Figures 1 to 4 , the exhaust duct 310 includes a cylinder body 311, a mounting plate 313 and a fan group 314. The mounting plate 313 is fixed inside the upper end of the cylinder body 311, and the fan group 314 is fixed inside the upper side of the cylinder body 311 through the mounting plate 313.

[0033] An exhaust port 312 is formed by penetrating upward at the upper end of the cylinder body 311. A communication port two 315 is respectively opened at the front side and the rear side of the lower end of the cylinder body 311;

[0034] The size of the communication port two 315 is smaller than the size of the communication port one 121. The cylinder body 311 is communicated with the inside of the salt spray box body 100 through the communication port one 121 and the communication port two 315.

[0035] As the second embodiment of the present utility model, based on the above-mentioned first embodiment, in actual use, when rapid exhaust is required, two cylinders 320 are started. The cylinders 320 jack up the profile frame 330, and then pull up the exhaust duct 310 through the profile frame 330 and the connecting plate 340. When the two cylinders 320 reach the maximum extension stroke, the two communication ports II 315 at the lower end of the cylinder body 311 are exactly aligned with the two communication ports I 121 on the exhaust pipe 120. At this time, the exhaust duct 310 is internally communicated with the inside of the salt spray box body 100 through the two communication ports II 315 and the two communication ports I 121. Then, the fan group 314 on the mounting plate 313 is started. Under the strong pumping action of the fan group 314, the air inside the exhaust duct 310 is quickly extracted through the exhaust port 312, and then the gas inside the salt spray box body 100 is quickly extracted, achieving the purpose of quickly exhausting the salt spray box body 100. The exhaust pipe 120 and the exhaust assembly can form a seal when necessary to avoid the leakage of the air inside the salt spray box body 100, and can ensure the exhaust efficiency on the premise of improving the sealing performance of the salt spray box body 100.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A rapid exhaust structure for a salt spray chamber, comprising: A salt spray chamber body (100), an air inlet assembly (200), and an exhaust assembly (300), characterized in that an air inlet assembly (200) for rapid air inlet is provided on the right side of the salt spray chamber body (100), and an exhaust assembly (300) for rapid exhaust is installed at the upper end of the salt spray chamber; An observation window (110) is provided on the left side of the salt spray chamber body (100), an exhaust duct (120) is provided on the upper side inside the salt spray chamber body (100), the air inlet assembly (200) includes a housing (220) and an air box (230), and the air box (230) is provided on the right side inside the housing (220); The exhaust assembly (300) includes an exhaust duct (120), a cylinder (320), and a profile frame (330). The left and right sides of the profile frame (330) are respectively fixedly connected to the upper ends of a cylinder (320). The lower ends of the two cylinders (320) are both fixedly connected to the upper end of the salt spray chamber body (100). The front and rear inner walls of the profile frame (330) are respectively fixedly connected to the upper ends of a connecting plate (340); The profile frame (330) is fixedly connected to the front and rear sides of the upper end of the exhaust cylinder (310) through two connecting plates (340), and the lower end of the exhaust cylinder (310) is movably inserted into the exhaust duct (120).

2. The quick exhaust structure for a salt spray chamber according to claim 1, wherein: The upper end of the exhaust duct (120) is flush with the upper end of the salt spray chamber body (100), and the upper end of the exhaust duct (120) is designed with an opening. A first communication port (121) is provided on each of the front and rear sides of the exhaust duct (120). The exhaust duct (120) is communicated with the inside of the salt spray chamber body (100) through the first communication port (121).

3. The quick exhaust structure for a salt spray chamber according to claim 2, wherein: An air inlet one (210) is provided on the lower side of the right surface of the housing (220). The air inlet one (210) is communicated with the lower end of the air box (230). An electric push rod is installed at the bottom of the air box (230). A sealing plate is fixed to the upper end of the electric push rod. The sealing plate is slidably sealed at the bottom of the air box (230) through the electric push rod.

4. The quick exhaust structure for a salt spray chamber according to claim 3, wherein: Second air inlets (231) are provided on the upper surface, the upper front surface, and the upper rear surface of the air box (230). The air box (230) is communicated with the inside of the salt spray chamber body (100) through the second air inlets (231).

5. The quick exhaust structure for a salt spray chamber according to claim 4, characterized in that: The exhaust cylinder (310) includes a cylinder body (311), a mounting plate (313), and a fan group (314). The mounting plate (313) is fixedly installed inside the upper end of the cylinder body (311), and the fan group (314) is fixedly installed inside the upper side of the cylinder body (311) through the mounting plate (313).

6. The rapid exhaust structure for a salt spray chamber according to claim 5, characterized in that: An exhaust port (312) is formed by penetrating upward at the upper end of the cylinder body (311). A second communication port (315) is respectively opened on the front and rear sides of the lower end of the cylinder body (311); The size of the second communication port (315) is smaller than the size of the first communication port (121). The cylinder body (311) is communicated with the inside of the salt spray chamber body (100) through the first communication port (121) and the second communication port (315).