An air purification device for production workshops

By introducing a connection and locking mechanism into the air purification device, the problem of inconvenient fastening of the filter mechanism is solved, enabling convenient replacement and stable installation, and improving the utilization efficiency of the air purification device in the production workshop.

CN224434612UActive Publication Date: 2026-06-30JI NAN TIANFANG CLEAN ROOM ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JI NAN TIANFANG CLEAN ROOM ENG CO LTD
Filing Date
2025-08-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing air purification devices in production workshops, the fastening method of the filter mechanism is not convenient enough, resulting in inconvenient replacement and unstable installation.

Method used

The design combines a connecting mechanism and a locking mechanism to enable convenient replacement and stable installation of the filter mechanism. The filter frame can be detachably connected through the cooperation of a fixed shaft, a limiting plate, a locking plate, and elastic components.

Benefits of technology

It enables convenient replacement and stable installation of the filter mechanism, avoids additional tightening steps, and improves replacement efficiency and installation stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224434612U_ABST
Patent Text Reader

Abstract

This utility model discloses an air purification device for production workshops, relating to the field of filter installation in air purification devices. It includes an air exchange box with an internal air inlet channel and an air outlet channel, the air inlet channel and the air outlet channel being separate and not interconnected. A fresh air inlet pipe and a fresh air outlet pipe connected to the air inlet channel are installed at both ends of one side of the air exchange box, and an exhaust air inlet pipe and an exhaust air outlet pipe connected to the air outlet channel are installed at both ends of the other side of the air exchange box. A filter mechanism penetrating into the air inlet channel is provided at the bottom of the air exchange box, and a connecting mechanism detachably connected to the filter mechanism is provided at the bottom of the air exchange box. The filter mechanism is located at the air outlet end of the fresh air inlet pipe, and a locking mechanism connected to the filter mechanism is installed at the top of the inner wall of the air inlet channel. This utility model, by setting up the connecting mechanism and the locking mechanism, allows for convenient replacement of the filter mechanism without additional tightening, and ensures stability after installation.
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Description

Technical Field

[0001] This utility model relates to the field of filter installation in air purification devices, specifically an air purification device for production workshops. Background Technology

[0002] Existing workshop ventilation systems generally have a fresh air inlet duct and an air outlet duct. The fresh air duct is usually equipped with a filter mechanism, which is used to intercept and filter dust, particulate matter and other impurities in the incoming fresh air.

[0003] Therefore, the filter mechanism needs to be replaced regularly. In the existing technology, the filter mechanism generally needs to be tightened after installation to maintain the stability of the installation and prevent movement during air intake. The existing tightening method is mostly bolt fixing connection, which is not convenient. Utility Model Content

[0004] The purpose of this utility model is to provide an air purification device for production workshops in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air purification device for a production workshop, comprising an air exchange box having an air inlet channel and an air outlet channel inside, wherein the air inlet channel and the air outlet channel are separated and not connected to each other; a fresh air inlet pipe and a fresh air outlet pipe connected to the air inlet channel are installed at both ends of one side of the air exchange box; an exhaust air inlet pipe and an exhaust air outlet pipe connected to the exhaust air channel are installed at both ends of the other side of the air exchange box; a filter mechanism penetrating into the air inlet channel is provided at the bottom end of the air exchange box; a connecting mechanism detachably connected to the filter mechanism is provided at the bottom end of the air exchange box; the filter mechanism is located at the air outlet end of the fresh air inlet pipe; and a locking mechanism connected to the filter mechanism is installed at the top of the inner wall of the air inlet channel.

[0006] As a further embodiment of this utility model: the filtration mechanism includes a connecting plate located at the bottom of the air exchange box, and a filter frame integrally formed on the top of the connecting plate extending into the air inlet channel, and a stacked filter core installed on the inner wall of the filter frame.

[0007] As a further embodiment of this utility model: the connecting mechanism includes a fixed shaft fixedly installed at the bottom of the air exchange box, a limit plate installed at the bottom of the fixed shaft, and connecting grooves are provided at both ends of the connecting plate, with one end of the connecting groove having an open structure.

[0008] As a further embodiment of this utility model: the locking mechanism includes a docking plate fixedly installed at the top of the air inlet channel, the docking plate has receiving grooves on both sides, the inner wall of the receiving groove is fixedly installed with an elastic element, the other end of the elastic element is fixedly installed with a locking plate that is slidably connected to the receiving groove, one end of the locking plate extends through to the outside of the docking plate, and the end of the locking plate located outside the docking plate has a triangular structure.

[0009] As a further improvement of this utility model: the top of the filter frame is formed with a docking groove that engages with the outer wall of the docking plate, and the inner walls of the docking groove are provided with engaging grooves on both sides that engage with one triangular end of the docking plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up a connecting mechanism and a locking mechanism, the filter mechanism can be easily replaced without additional tightening, and the stability after installation can be guaranteed. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 For the present utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the connection of the filter frame of this utility model;

[0015] Figure 4 This is a schematic diagram of the engaging mechanism of this utility model.

[0016] In the diagram: 1. Air exchange box; 2. Fresh air inlet pipe; 3. Fresh air outlet pipe; 4. Exhaust air inlet pipe; 5. Exhaust air outlet pipe; 6. Locking groove; 7. Connecting plate; 8. Connecting groove; 9. Fixed shaft; 10. Limiting plate; 11. Filter frame; 12. Docking groove; 13. Docking plate; 14. Locking plate; 15. Elastic element; 16. Receiving groove. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4In this embodiment of the present invention, an air purification device for a production workshop includes an air exchange box 1 with an air inlet channel and an air outlet channel inside. The air inlet channel and the air outlet channel are separated and not connected to each other. A fresh air inlet pipe 2 and a fresh air outlet pipe 3 connected to the air inlet channel are installed at both ends of one side of the air exchange box 1. An exhaust air inlet pipe 4 and an exhaust air outlet pipe 5 connected to the air outlet channel are installed at both ends of the other side of the air exchange box 1. A filter mechanism penetrating into the air inlet channel is provided at the bottom end of the air exchange box 1. A connecting mechanism detachably connected to the filter mechanism is provided at the bottom end of the air exchange box 1. The filter mechanism is located at the air outlet end of the fresh air inlet pipe 2. A locking mechanism connected to the filter mechanism is installed at the top of the inner wall of the air inlet channel.

[0019] In this embodiment: an intake fan is installed in the intake duct and an exhaust fan is installed in the exhaust duct. When the device is running, the intake fan and the exhaust fan run simultaneously. The suction generated by the exhaust fan draws air from the workshop through the exhaust inlet pipe 4 and then exhausts it out through the pipe connected to the exhaust outlet pipe 5. When the intake fan is running, the suction generated draws fresh air from outside through the fresh air inlet pipe 2, and after being filtered by the filter mechanism, it is then input into the workshop through the fresh air outlet pipe 3, thereby achieving air purification and ventilation in the workshop.

[0020] During the ventilation process, after the fresh air from outside enters the air intake duct, the impurities, dust, and particulate matter contained therein are intercepted by the filtration mechanism. Therefore, periodic operation is required. The filtration mechanism can be easily installed and removed through the connecting and locking mechanisms.

[0021] Please refer to this carefully. Figure 3 and Figure 4 The filtration mechanism includes a connecting plate 7 located at the bottom of the air exchange box 1. The top of the connecting plate 7 is integrally formed with a filter frame 11 that extends into the air inlet channel. The inner wall of the filter frame 11 is fitted with stacked filter elements.

[0022] In this embodiment: After the filter mechanism is installed, the connecting plate 7 is located at the bottom of the air exchange box 1, and the top of the connecting plate 7 is in contact with the bottom of the air exchange box 1. During the operation of the device, the air drawn in by the air intake fan is fully in contact with multiple filter elements, and the filter elements intercept and filter the particles and impurities contained in the fresh air.

[0023] Please refer to this carefully. Figure 1 and Figure 2 The connecting mechanism includes a fixed shaft 9 fixedly installed at the bottom of the air exchange box 1, a limit plate 10 installed at the bottom of the fixed shaft 9, and connecting grooves 8 are provided at both ends of the connecting plate 7, with one end of the connecting groove 8 having an open structure.

[0024] In this embodiment: when replacing the filter element mechanism, first rotate the limiting plate 10 so that the limiting plate 10 rotates to below the connecting groove 8. At this time, the limiting plate 10 no longer limits the connecting plate 7, so the connecting plate 7 can be pulled to disassemble the filter element mechanism. Then insert the new filter element mechanism. After insertion, the limit plate 10 can be rotated in the opposite direction to achieve misalignment between the limiting plate 10 and the connecting groove 8, thus achieving the installation limiting effect.

[0025] Please refer to this carefully. Figure 3 and Figure 4 The engaging mechanism includes a docking plate 13 fixedly installed at the top of the air inlet channel. The docking plate 13 has receiving grooves 16 on both sides. An elastic element 15 is fixedly installed on the inner wall of the receiving groove 16. The other end of the elastic element 15 is fixedly installed with an engaging plate 14 that is slidably connected to the receiving groove 16. One end of the engaging plate 14 extends through to the outside of the docking plate 13. The end of the engaging plate 14 located outside the docking plate 13 has a triangular structure. The top of the filter frame 11 is formed with a docking groove 12 that engages with the outer wall of the docking plate 13. The inner walls of the docking groove 12 have engaging grooves 6 on both sides that engage with the triangular end of the docking plate 13.

[0026] In this embodiment: during the process of inserting the new filter mechanism into the air exchange box 1, the filter frame 11 drives the docking groove 12 to gradually approach the docking plate 13 until the two dock. During the docking process, the top edge of the docking groove 12 presses against the bottom slope of the locking plate 14. At this time, the locking plate 14 moves towards the inner wall of the receiving groove 16. At this time, the elastic member 15 is compressed until it is completely inserted into the receiving groove 16 until the locking groove 6 is aligned with the locking plate 14. At this time, the elastic member 15 resets and is locked into the inside of the locking groove 6 to complete the locking. This can prevent the filter frame 11 from being restricted to the current position and prevent it from falling.

[0027] When the filter mechanism is pulled out, a downward pulling force is applied to the connecting plate 7. At this time, the connecting plate 7 applies a squeezing force to the top inclined surface of the locking plate 14 through the locking groove 6. The locking plate 14 then retracts into the receiving groove 16, thus realizing the downward disassembly of the filter mechanism.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air purification device for a production workshop, comprising an air exchange box (1) having an internal air inlet channel and an air outlet channel, wherein the air inlet channel and the air outlet channel are separated from each other and are not interconnected, characterized in that, The air exchange box (1) has a fresh air inlet pipe (2) and a fresh air outlet pipe (3) connected to the air inlet channel installed at both ends on one side. The air exchange box (1) has an exhaust air inlet pipe (4) and an exhaust air outlet pipe (5) connected to the air outlet channel installed at both ends on the other side. The air exchange box (1) has a filter mechanism that extends through the air inlet channel at the bottom end. The air exchange box (1) has a connection mechanism that is detachably connected to the filter mechanism at the bottom end. The filter mechanism is located at the air outlet end of the fresh air inlet pipe (2). The inner wall of the air inlet channel has a locking mechanism connected to the filter mechanism installed at the top.

2. The air purification device for a production workshop according to claim 1, characterized in that, The filtration mechanism includes a connecting plate (7) located at the bottom of the air exchange box (1). The top of the connecting plate (7) is integrally formed with a filter frame (11) that extends into the air inlet channel. The inner wall of the filter frame (11) is fitted with stacked filter cores.

3. The air purification device for a production workshop according to claim 2, characterized in that, The connecting mechanism includes a fixed shaft (9) fixedly installed at the bottom of the air exchange box (1), a limit plate (10) is installed at the bottom of the fixed shaft (9), and connecting grooves (8) are provided at both ends of the connecting plate (7), with one end of the connecting groove (8) having an open structure.

4. An air purification device for a production workshop according to claim 3, characterized in that, The locking mechanism includes a docking plate (13) fixedly installed at the top of the air inlet channel. The docking plate (13) has receiving grooves (16) on both sides. An elastic element (15) is fixedly installed on the inner wall of the receiving groove (16). The other end of the elastic element (15) is fixedly installed with a locking plate (14) that is slidably connected to the receiving groove (16). One end of the locking plate (14) extends through to the outside of the docking plate (13). The end of the locking plate (14) located outside the docking plate (13) has a triangular structure.

5. An air purification device for a production workshop according to claim 4, characterized in that, The top of the filter frame (11) is formed with a docking groove (12) that engages with the outer wall of the docking plate (13), and the inner walls of the docking groove (12) are provided with engaging grooves (6) that engage with one end of the triangle of the docking plate (13).