Miniature dust test box

Abstract

The utility model discloses a miniature dust test box, which is characterized in that a first filter is mounted at the top of a box body, a second filter covers an exhaust port on the rear end face of the box body, and the first filter can prevent dust from entering the box body from outside air, so that an exhaust fan is connected with the exhaust port of the box body through an exhaust pipeline; secondly, the box door is provided with an operation hole and an operation glove arranged corresponding to the operation hole, an operator can stretch the hand into the operation glove and then grabs the air pressure dust blowing gun, and then the air pressure dust blowing gun can blow dust to the air pressure dust blowing gun; the dust on the surface of a test sample can be effectively cleaned by 360 degrees through high-pressure airflow, the cleaning efficiency is greatly improved, the operation complexity is reduced, and the degree of harm to the body of an operator is greatly reduced when the test sample is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental test chambers, and more particularly to a miniature dust test chamber. Background Art

[0002] Dust testing is mainly used for sand and dust simulation detection of low-voltage electrical appliances, motors, instruments, meters, electronic products, and lamps. It is used to evaluate the sealing performance of products such as mobile phones and electrical products in sand and dust environments, and the sealing performance of automobile and motorcycle parts, seals, etc. during use, storage, and transportation in sand and dust environments.

[0003] Dust testing is conducted in a dust test chamber. By simulating the destructive effects of natural sandstorms on products, it is suitable for testing the sealing performance of product enclosures. It is primarily used for testing the IP5X and IP6X levels specified in the enclosure protection standards. The operating principle of the dust test chamber is that a fan propels a certain concentration of sand and dust across the surface of the test sample at a certain flow rate. The chamber tests the test sample's ability to resist the penetration of dust particles, the abrasive or clogging effects of sand and gravel, and its ability to store and operate when exposed to dry sand or dust-laden atmospheres.

[0004] After the dust test, the test sample's surface is covered with a large amount of dust and other dirt, requiring cleaning to facilitate further testing. Existing dust test chambers lack cleaning mechanisms, requiring manual cleaning of the mold surface using equipment such as air guns after the test sample is removed. However, this cleaning method has significant drawbacks: dust can easily fall to the ground or become airborne during the removal of the test sample. Furthermore, dust can easily be dispersed during the cleaning process, endangering worker health, potentially polluting the environment, and increasing cleaning costs. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a miniature dust test chamber to solve the problem that dust attached to the surface of the test sample is easily scattered during the cleaning process, resulting in increased production costs and easily endangering the health of workers.

[0006] The technical solution of the utility model is as follows: A miniature dust test box, comprising an exhaust fan, a box body and a box door rotatably connected to the box body, an air pressure dust blower, a first filter and a second filter are arranged in the box body, a mounting hole for installing the first filter is opened on the top of the box body, an exhaust port is provided on the rear end face of the box body, the second filter covers the exhaust port, and the exhaust fan is connected to the exhaust port through an exhaust duct, and an operating hole and an operating glove corresponding to the operating hole are provided on the box door.

[0007] Furthermore, the first filter is provided with a plurality of air inlet holes arranged in a rectangular array.

[0008] Furthermore, a high-pressure air source hole is provided on the side wall of the box body, and the high-pressure air source hole is used to supply high-pressure air flow into the air pressure dust blow gun.

[0009] Furthermore, a storage cabinet is included, the box body and the storage cabinet are arranged up and down, and a storage cavity for placing items is provided inside the storage cabinet.

[0010] Furthermore, an observation window is provided on the box door, and the observation window is used to observe the state of the sample in the box.

[0011] Furthermore, the wall thickness of the box is 50 mm.

[0012] Furthermore, there are two operating holes, two operating gloves, and the two operating gloves and the two operating holes are arranged in a one-to-one correspondence.

[0013] Furthermore, a first threaded hole is provided on the outer edge of the first filter, and a second threaded hole is correspondingly provided on the top of the box body, and the first threaded hole and the second threaded hole cooperate to insert a bolt.

[0014] According to the above-mentioned solution, the present invention has the following beneficial effects: the present invention provides a miniature dust test chamber, wherein the first filter is installed on the top of the chamber, and the second filter covers the exhaust port on the rear end surface of the chamber. The first filter can prevent dust from entering the chamber from the outside air, while ensuring that air exchange can be achieved between the inside of the chamber and the outside. The exhaust fan is connected to the exhaust port of the chamber through the exhaust duct, forming an effective ventilation system, thereby avoiding the situation where negative pressure occurs in the chamber due to the operation of the exhaust fan, so as to ensure that dust can move toward the exhaust port and adhere to the second filter. Not only can the air in the chamber be quickly discharged to prevent dust accumulation, but also the dust can be easily cleaned. Secondly, an operation hole and an operation glove corresponding to the operation hole are provided on the chamber door. The operator can put his hand into the operation glove and then grab the air pressure dust blower to effectively achieve 360° cleaning of the dust on the surface of the test sample by using the high-pressure airflow, thereby ensuring that the test sample is in a clean state after each test. This design greatly improves the cleaning efficiency and reduces the complexity of operation. When cleaning the test sample, the degree of harm to the operator's body is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a side view of a miniature dust test box in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of a miniature dust test box in an embodiment of the present utility model;

[0018] Figure 3 This is a front view of a miniature dust test box in an embodiment of the present utility model.

[0019] In the figure, 1. exhaust fan; 2. box body; 21. air pressure dust gun; 22. first filter; 221. air inlet; 222. first threaded hole; 23. second filter; 24. high-pressure air source hole; 3. box door; 31. operating hole; 32. operating gloves; 33. observation window; 4. exhaust duct; 5. storage cabinet. DETAILED DESCRIPTION

[0020] The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention. That is, the present invention is not limited to the described embodiments.

[0021] In order to better understand the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments:

[0022] See also Figure 1 As shown, the utility model provides a miniature dust test box, including an exhaust fan 1, a box body 2 and a box door 3 rotatably connected to the box body 2, an air pressure dust blower 21, a first filter 22 and a second filter 23 are provided in the box body 2, and a mounting hole for installing the first filter 22 is provided on the top of the box body 2, an exhaust port is provided on the rear end face of the box body 2, the second filter 23 covers the exhaust port, and the exhaust fan 1 is connected to the exhaust port through an exhaust duct 4, and an operating hole 31 and an operating glove 32 corresponding to the operating hole 31 are provided on the box door 3.

[0023] Specifically, the first filter 22 is installed on the top of the box body 2, and the second filter 23 covers the exhaust port on the rear end face of the box body 2. The first filter 22 can prevent dust from entering the interior of the box body 2 from the outside air, while ensuring that the interior of the box body 2 and the outside can achieve air exchange, so that the exhaust fan 1 is connected to the exhaust port of the box body 2 through the exhaust duct 4, forming an effective ventilation system, thereby avoiding the situation where the exhaust fan 1 causes negative pressure in the box body 2, so as to ensure that the dust can move toward the direction close to the exhaust port and adhere to the second filter 23, which can not only The air in the box body 2 is quickly discharged to prevent dust accumulation and facilitate dust cleaning. Secondly, an operating hole 31 and an operating glove 32 corresponding to the operating hole 31 are provided on the box door 3. The operator can put his hand into the operating glove 32 and then grab the air pressure dust blower 21 to use the high-pressure airflow to effectively achieve 360° cleaning of the dust on the surface of the test sample, thereby ensuring that the test sample is in a clean state after each test. This design greatly improves the cleaning efficiency, reduces the complexity of operation, and greatly reduces the degree of harm to the operator's body when cleaning the test sample.

[0024] See also Figure 2 As shown, the first filter 22 is provided with a plurality of air inlet holes 221 arranged in a rectangular array. Specifically, each air inlet hole 221 acts as a small channel, allowing external air to smoothly enter the interior of the housing 2. At the same time, the rectangular array arrangement ensures the uniform distribution of the air inlet holes 221, making the air flow smoother, reducing vortices and dead corners, and thus improving the filtering effect. When the exhaust fan 1 is running, fresh air from the outside can continuously enter the housing 2. After being filtered by the first filter 22, dust and other impurities are effectively intercepted outside the first filter 22, thereby ensuring the purity of the internal environment of the housing 2. The air then carries the dust in the housing 2 to the exhaust port and adheres to the second filter 23.

[0025] See also Figure 2 As shown, the side wall of the box body 2 is provided with a high-pressure air source hole 24, which is used to supply high-pressure airflow to the air pressure dust blowing gun 21, providing a continuous and stable airflow supply to the air pressure dust blowing gun 21. When it is necessary to clean the surface of the test sample, the operator can control the air pressure dust blowing gun 21 to use the high-pressure airflow to quickly blow away dust and dirt, thereby ensuring the cleanliness of the sample surface, not only improving the cleaning efficiency, but also enhancing the safety and environmental protection of the test box; by centrally supplying high-pressure airflow within the box body 2 and using the high-pressure airflow to quickly blow away dust and dirt, the problem of dust flying and spreading that may occur in traditional cleaning methods is avoided. This not only protects the operator from the harm of dust, but also reduces the pollution of dust to the surrounding environment.

[0026] See also Figure 2 and Figure 3 As shown, the miniature dust test box provided by the present invention further includes a storage cabinet 5. The box body 2 and the storage cabinet 5 are arranged up and down, and a storage cavity for storing accessories is provided inside the storage cabinet 5.

[0027] In this embodiment, an observation window 33 is provided on the box door 3. The observation window 33 is used to observe the status of the samples in the box body 2, allowing the operator to directly observe the status of the samples in the box body 2 without opening the box door 3. Whether it is the placement of the samples, changes during the test, or the effect after cleaning, they can all be intuitively observed through the observation window 33, which greatly improves the convenience and efficiency of the test. It reduces the number of times the operator needs to open the box door 3 frequently, thereby avoiding interference from the external environment and dust leakage.

[0028] Preferably, the wall thickness of the box body 2 is 50 mm. This design can effectively reduce the risk of deformation or damage of the box body 2.

[0029] Preferably, two operating holes 31 are provided, and two operating gloves 32 are provided, and the two operating gloves 32 are provided in a one-to-one correspondence with the two operating holes 31 .

[0030] Preferably, a first threaded hole 222 is provided on the outer edge of the first filter 22, and a second threaded hole is correspondingly provided on the top of the box body 2. The first threaded hole 222 and the second threaded hole cooperate to insert a bolt.

[0031] The indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is typically placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship commonly placed when the product of the application is in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

[0033] The above is an exemplary description of the present utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the present utility model patent is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present utility model patent, or the concept and technical solution of the present utility model patent are directly applied to other occasions without improvement, they are all within the scope of protection of the present utility model.

Claims

1. A miniature dust test chamber, characterized in that: include: An exhaust fan (1), a box (2) and a box door (3) rotatably connected to the box (2); a pneumatic dust gun (21), a first filter (22) and a second filter (23) are arranged in the box (2); a mounting hole for mounting the first filter (22) is provided at the top of the box (2); an exhaust port is provided at the rear end face of the box (2); the second filter (23) covers the exhaust port; the exhaust fan (1) is connected to the exhaust port via an exhaust duct (4); an operating hole (31) and an operating glove (32) arranged corresponding to the operating hole (31) are provided on the box door (3).

2. A miniature dust test chamber as claimed in claim 1, characterized in that: The first filter (22) is provided with a plurality of air inlet holes (221) arranged in a rectangular array.

3. A miniature dust test chamber as claimed in claim 1, characterized in that: A high-pressure air source hole (24) is provided on the side wall of the box body (2), and the high-pressure air source hole (24) is used to supply high-pressure air flow into the air pressure dust blowing gun (21).

4. A miniature dust test box as claimed in claim 1, characterized in that: It also comprises a storage cabinet (5), wherein the box body (2) and the storage cabinet (5) are arranged up and down, and a storage cavity for placing articles is arranged inside the storage cabinet (5).

5. A miniature dust test chamber as claimed in claim 1, characterized in that: The box door (3) is provided with an observation window (33), and the observation window (33) is used to observe the state of the sample in the box body (2).

6. A miniature dust test chamber as claimed in claim 1, characterized in that: The wall thickness of the box body (2) is (50) mm.

7. A miniature dust test chamber as claimed in claim 1, characterized in that: Two operating holes (31) are provided, and two operating gloves (32) are provided. The two operating gloves (32) and the two operating holes (31) are provided in a one-to-one correspondence.

8. A miniature dust test box as claimed in claim 1, characterized in that: The outer edge of the first filter (22) is provided with a first threaded hole (222), and the top of the box body (2) is correspondingly provided with a second threaded hole, and the first threaded hole (222) and the second threaded hole cooperate to insert a bolt.

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