External simple filtering device suitable for external connector

Abstract

The utility model relates to an external simple filtering device applicable to an external interface, which is applied to the technical field of filtering equipment and comprises a shell, a fixed panel and a movable cover plate, a cavity is arranged in the shell, and a filter element is filled in the cavity; the fixed panel and the movable cover plate are both arranged on the shell, and the fixed panel and the movable cover plate are arranged on the two sides of the cavity respectively; a plurality of filter holes are formed in the fixed panel and the movable cover plate. When the simple filtering device is used, the simple filtering device is arranged between an air outlet in a cabinet body and a pipeline of a ventilation device, when the ventilation device is switched on to operate, air in the cabinet and air outside the cabinet form powerful circulation, and when the air in the cabinet enters from the air outlet of the cabinet body under the power action of the ventilation device and passes through the simple filtering device, the ventilation device is started. The filter element in the simple filter device adsorbs and filters toxic and harmful gases in the air in the cabinet, so that the air discharged into the ventilation device pipeline becomes fresh, nontoxic and harmless air.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to a simple external filtration device suitable for external interfaces. Background Technology

[0002] Safety cabinets are protective equipment used to store various production or daily materials or data. In addition to meeting the requirements of fire protection and safety laws and regulations, safety cabinets that store volatile, toxic or other hazardous chemicals or products also need to have strong ventilation and filtration capabilities to reduce the release of harmful substances outside the cabinet, which could pollute the air or even endanger biological health.

[0003] Currently, most safety cabinet filtration devices on the market are complex, bulky, and powered integrated filtration units. These not only take up storage space inside the cabinet but are also expensive. For safety cabinets storing low-risk items, where filtration intensity is not a primary concern, using the aforementioned filtration devices would present problems such as complex structure, large size, and high cost.

[0004] In view of this, there is an urgent need for a simple external filter device suitable for external interfaces to solve the above problems. Summary of the Invention

[0005] In order to help solve the problems existing in the prior art, this utility model provides an external simple filter device suitable for external interfaces, which adopts the following technical solution: including: a shell, a fixed panel and a movable cover plate, wherein a cavity is provided in the shell and a filter element is filled in the cavity;

[0006] Both the fixed panel and the movable cover are mounted on the housing, and the fixed panel and the movable cover are respectively located on both sides of the cavity;

[0007] Both the fixed panel and the movable cover are provided with several filter holes.

[0008] Its further feature is that,

[0009] The housing is a hollow cylinder, and the fixed panel and the movable cover are respectively located at both ends of the housing.

[0010] The housing has a first mounting thread on one circumferential side near the fixed panel.

[0011] The housing has a second mounting thread on one circumferential side near the movable cover plate.

[0012] The housing is provided with several fixed feet on one side near the fixed panel.

[0013] The fixed support leg is provided with mounting holes.

[0014] The movable cover plate is fixed to the housing by several bolts.

[0015] The cavity is provided with several connecting lugs on one side of the movable cover plate, and the movable cover plate is fixed on the several connecting lugs.

[0016] The movable cover plate is provided with several washers that correspond one-to-one with the connecting lugs. The bolts are sequentially passed through the washers, the movable cover plate and the corresponding connecting lugs, and are threadedly connected to the connecting lugs.

[0017] The fixed panel is fixed to the housing by welding.

[0018] The above-described structure of this utility model can achieve the following beneficial effects:

[0019] When in use, this device is placed between the air outlet on the cabinet and the duct of the ventilation system. When the ventilation system is turned on, the air inside the cabinet and the air outside the cabinet form a strong circulation. When the air inside the cabinet enters from the air outlet under the power of the ventilation system and passes through the simple filter device, the filter element in the simple filter device adsorbs and filters the toxic and harmful gases in the air inside the cabinet, so that the air discharged into the ventilation system duct becomes fresh, non-toxic and harmless air. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0021] Figure 2 This is a structural schematic diagram from another perspective of Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the shell and connecting lug in Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of the movable cover plate in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0025] Figure 6 This is a structural schematic diagram of the second embodiment of this utility model in use.

[0026] Reference numerals: 1. Housing; 2. Fixed panel; 3. Movable cover; 4. Cavity; 5. First mounting thread; 6. Second mounting thread; 7. Fixed support leg; 71. Mounting hole; 8. Connecting lug; 9. Gasket. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0029] The following is combined with Figure 1-6 The present invention will be described in further detail below.

[0030] Example 1, refer to Figure 1-3 An external simple filter device suitable for external interfaces includes: a housing 1, a fixed panel 2, and a movable cover 3. The housing 1 has a cavity 4 filled with a filter element. The fixed panel 2 and the movable cover 3 are both located on the housing 1 and on opposite sides of the cavity 4. Both the fixed panel 2 and the movable cover 3 have several filter holes. In use, the device is placed between the air outlet on the cabinet and the duct of the ventilation device. When the ventilation device is turned on, the air inside the cabinet and the air outside the cabinet form a strong circulation. When the air inside the cabinet enters from the air outlet under the power of the ventilation device and passes through the simple filter device, the filter element in the simple filter device adsorbs and filters the toxic and harmful gases in the air inside the cabinet, making the air discharged into the ventilation device duct fresh, non-toxic, and harmless air. The filter element can be placed in the cavity 4 after being sealed with a breathable bag of filter material.

[0031] like Figure 1-4As shown, the shell 1 is preferably hollow cylindrical in shape. The fixed panel 2 and the movable cover 3 are respectively set at both ends of the shell 1. That is to say, the shell 1 can be directly made of seamless metal tubes. The first mounting thread 5 and the second mounting thread 6 are respectively set on the circumferential side of both ends of the metal tubes for connecting with the air outlet and the pipe of the ventilation device outside the cabinet, respectively, to complete the installation of the device. Except for the ventilation holes evenly distributed at both ends, the rest of the device is sealed. The fixed panel 2 is fixed to the shell 1 by welding. After welding, the fixed panel 2 is flush with the end face of the shell 1. The inner opening of the other end of the shell 1 is welded with a number of connecting lugs 8 evenly arranged in a circle. The movable cover 3 is provided with a number of gaskets 9 corresponding to the connecting lugs 8 one by one. Bolts are sequentially passed through the gaskets 9, the movable cover 3 and the corresponding connecting lugs 8, and finally threadedly connected to the connecting lugs 8 to complete the fixing of the movable cover 3.

[0032] Example 2: In addition to the above examples, this utility model also includes Example 2. The difference between Example 2 and the above examples is that, as... Figure 5 As shown, if the cabinet's air outlet has no threads, several fixed supports 7 are provided on the circumferential side of the end of the housing 1 near the fixed panel 2, and mounting holes 71 are provided on the fixed supports 7. This is suitable for plastic acid and alkali cabinets and steel safety cabinets with no threads on the air outlet. Specifically, neither end of the housing 1 has external connecting threads. Several fixed supports 7 are provided on the end of the housing 1 near the fixed panel 2. The inner diameter of the fixed supports 7 is determined according to the outer diameter of the matching ventilation and fire arrestor valve, and must be larger than the outer diameter of the ventilation and fire arrestor valve. The height H from the bottom of the fixed supports 7 to the bottom of the tank is consistent with the height of the external ventilation opening protruding from the surface of the cabinet, and has a negative tolerance. The center of the end of the housing 1 is consistent with the center of the external ventilation opening of the cabinet. The housing 1 is fixed to the corresponding position outside the cabinet using the mounting holes 71 on the fixed supports 7 (installation situation as shown). Figure 6 As shown, Figure 6 (A is a ventilation fire arrestor valve). After installation, apply sealant to the entire circumference of the contact area between the top of the ventilation opening and the circumference of the housing 1 to ensure sealing, prevent leakage, and enhance the ventilation filtration effect.

[0033] A further optimization is that if the ventilation duct installed in the cabinet is a threadless flexible hose, a clamp can be used to tightly connect the ventilation duct and the device.

[0034] In summary, when using this device, place it between the air outlet on the cabinet and the duct of the ventilation system. When the ventilation system is turned on, the air inside the cabinet and the air outside the cabinet form a strong circulation. When the air inside the cabinet enters from the air outlet under the power of the ventilation system and passes through the simple filter device, the filter element in the simple filter device adsorbs and filters the toxic and harmful gases in the air inside the cabinet, so that the air discharged into the ventilation system duct becomes fresh, non-toxic and harmless air.

[0035] This device is suitable for storage spaces where the requirements for filtration intensity are not high and the risk level is not high. It has the advantages of small size, easy installation, good ventilation and filtration effect, and low cost.

[0036] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A simple external filter device suitable for external interfaces, characterized in that, include: The housing (1), the fixed panel (2) and the movable cover (3) are provided. A cavity (4) is provided inside the housing (1), and a filter element is filled inside the cavity (4). The fixed panel (2) and the movable cover plate (3) are both disposed on the housing (1), and the fixed panel (2) and the movable cover plate (3) are respectively disposed on both sides of the cavity (4); Both the fixed panel (2) and the movable cover plate (3) are provided with several filter holes.

2. The simple external filter device suitable for external interfaces according to claim 1, characterized in that: The housing (1) is a hollow cylinder, and the fixed panel (2) and the movable cover (3) are respectively disposed at both ends of the housing (1).

3. The simple external filter device suitable for external interfaces according to claim 2, characterized in that: The housing (1) has a first mounting thread (5) on one end near the fixed panel (2).

4. The simple external filter device suitable for external interfaces according to claim 3, characterized in that: The housing (1) has a second mounting thread (6) on one end near the movable cover plate (3).

5. A simple external filter device suitable for external interfaces according to claim 1 or 2, characterized in that: Several fixed feet (7) are provided around one end of the housing (1) near the fixed panel (2).

6. A simple external filter device suitable for external interfaces according to claim 5, characterized in that: The fixed support (7) is provided with mounting holes (71).

7. The simple external filter device suitable for external interfaces according to claim 1, characterized in that: The movable cover plate (3) is fixed to the housing (1) by several bolts.

8. A simple external filter device suitable for external interfaces according to claim 7, characterized in that: The cavity (4) is provided with several connecting lugs (8) on one side near the movable cover plate (3), and the movable cover plate (3) is fixed on the several connecting lugs (8).

9. A simple external filter device suitable for external interfaces according to claim 8, characterized in that: The movable cover plate (3) is provided with a number of gaskets (9) corresponding to the connecting lugs (8). The bolts are sequentially passed through the gaskets (9), the movable cover plate (3) and the corresponding connecting lugs (8), and are threadedly connected to the connecting lugs (8).

10. A simple external filter device suitable for external interfaces according to claim 1, characterized in that: The fixed panel (2) is fixed to the housing (1) by welding.

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