Filter convenient to clean and replace

Abstract

The utility model belongs to the technical field of air filtration, and particularly relates to a filter convenient to clean and replace, which comprises a filter cartridge, one end of the filter cartridge is connected with an air inlet pipe, the other end of the air inlet pipe is connected with an exhaust pipe, the top end of the filter cartridge is provided with an insertion opening, and a filter plate is inserted into the filter cartridge through the insertion opening. A bracket is arranged at the bottom end, corresponding to the insertion opening, of the filter cartridge; wherein a nozzle is further mounted at the top end of the filter cartridge, and the nozzle is located between the exhaust pipe and the socket. When the filter plate is cleaned, the filter plate is shaken by driving the filter plate to move up and down, so that residual dust on the filter plate is shaken off; dust is blown down in a manner of blowing air to one side of the filter plate by utilizing a spray head, so that the aim of cleaning the filter plate is fulfilled; and the residue discharge port is formed in the bottom of the filter cartridge, so that dust shaken off from the filter plate can be discharged from the residue discharge port when the filter plate is cleaned.

Description

Technical Field

[0001] This invention belongs to the field of air filtration technology, specifically relating to a filter that is easy to clean and replace. Background Technology

[0002] An air filter is a device that uses porous filter materials to capture dust from a gas-solid two-phase flow and purify the gas. After the air with low dust content is purified, it is sent into the room to ensure the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms, so as to meet the needs of normal production and life.

[0003] For example, Chinese Patent Publication No. CN220159506U discloses a filter that is easy to clean and replace. This filter includes a filter cartridge and a filter body embedded within the cartridge. Cleaning units are installed on both sides of the filter body, a removable pressure cap is installed on the top of the filter body, and a collection unit is provided at the bottom of the filter body. This device achieves the purpose of cleaning the filter by providing brushes on both sides of the filter body for easy cleaning.

[0004] However, the device has the following problems when in use:

[0005] 1. Using a rotating brush to clean the filter surface by moving it up and down can easily scratch the filter, causing it to lose its filtering effect.

[0006] 2. Brushes can only clean dust on the surface of the filter, and are not effective at cleaning dust inside the filter.

[0007] Practical content

[0008] The purpose of this invention is to provide a filter that is easy to clean and replace. It can clean the filter plate by reverse airflow and shaking, which not only does not damage the filter plate, but also removes dust from inside the filter plate.

[0009] The specific technical solution adopted in this utility model is as follows:

[0010] A filter that is easy to clean and replace includes a filter cartridge, one end of which is connected to an air inlet pipe and the other end of which is connected to an exhaust pipe. The top of the filter cartridge has an insertion port through which a filter plate is inserted into the interior of the filter cartridge. A bracket is provided at the bottom of the filter cartridge corresponding to the insertion port. A nozzle is also installed at the top of the filter cartridge, and the nozzle is located between the exhaust pipe and the insertion port.

[0011] In a preferred embodiment, connecting rods are slidably arranged on both sides of the filter cylinder, and the lower ends of the connecting rods are fixedly connected to the bracket. A connecting ear is provided on the top of the filter plate, and the filter plate is connected to the connecting rod through the connecting ear. A insertion hole is horizontally opened on the top side of the connecting rod for inserting a pin. A spring one and a spring two are respectively provided at the upper and lower ends of the connecting rod. The lower end of the spring one abuts against the bracket, and the upper end of the spring one abuts against the filter cylinder. The upper end of the spring two abuts against the filter plate, and the lower end of the spring two abuts against the filter cylinder.

[0012] In a preferred embodiment, a control valve is installed on the intake pipe.

[0013] In a preferred embodiment, a control valve two is installed on the exhaust pipe.

[0014] In a preferred embodiment, the nozzle of the spray head is positioned facing the filter plate.

[0015] In a preferred embodiment, a slag discharge port is installed at the bottom of the filter cartridge, the slag discharge port is located between the air inlet pipe and the inlet, and a control valve is installed on the slag discharge port.

[0016] The technical effects achieved by this utility model are as follows:

[0017] When cleaning the filter plate, this utility model moves the filter plate up and down to make it shake, thereby shaking off the dust remaining on the filter plate. Then, it uses a nozzle to blow air to one side of the filter plate to blow off the dust, thus achieving the purpose of cleaning the filter plate.

[0018] This device features a slag discharge port at the bottom of the filter cartridge. When cleaning the filter plates, the dust that falls off the filter plates can be discharged through the slag discharge port, preventing dust from accumulating inside the filter cartridge and re-adhering to the filter plates. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this practical tool;

[0020] Figure 2 This is a schematic diagram of the side cross-section structure of this practical application;

[0021] Figure 3 This is a schematic diagram showing the exploded structure between the half-section of the filter cartridge and the filter plate of this practical filter.

[0022] Figure 4 This is a side view of the structure between the filter plate and the connecting rod in this practical application.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Filter cartridge; 2. Air inlet pipe; 3. Exhaust pipe; 4. Filter plate; 5. Bracket; 6. Nozzle; 7. Slag discharge port; 11. Insert; 12. Connecting rod; 13. Spring 1; 14. Spring 2; 121. Insert hole; 122. Pin; 123. Quick release bolt; 21. Control valve 1; 31. Control valve 2; 41. Connecting lug; 71. Control valve 3. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Please see the appendix Figures 1 to 3As shown, this utility model provides a filter that is easy to clean and replace, including a filter cartridge 1. One end of the filter cartridge 1 is connected to an air inlet pipe 2, and the other end of the air inlet pipe 2 is connected to an exhaust pipe 3. The top of the filter cartridge 1 has an insertion port 11, through which a filter plate 4 is inserted into the filter cartridge 1. A bracket 5 is provided at the bottom of the filter cartridge 1 corresponding to the insertion port 11. A nozzle 6 is also installed at the top of the filter cartridge 1, positioned between the exhaust pipe 3 and the insertion port 11. Connecting rods 12 are slidably arranged on both sides of the filter cartridge 1. The filter plate 4 is fixedly connected to the bracket 5. The top of the filter plate 4 is provided with a connecting ear 41. The filter plate 4 is connected to the connecting rod 12 through the connecting ear 41. The top side of the connecting rod 12 is provided with a transverse insertion hole 121. The insertion hole 121 is used to insert a pin 122. The upper and lower ends of the connecting rod 12 are respectively provided with a spring 13 and a spring 2 14. The lower end of the spring 13 rests on the bracket 5, and the upper end of the spring 13 rests on the filter cylinder 1. The upper end of the spring 2 14 rests on the filter plate 4, and the lower end of the spring 2 14 rests on the filter cylinder 1.

[0030] In this embodiment, when the filter is in use, air enters the filter cylinder 1 through one end of the air inlet pipe 2, is filtered by the filter plate 4 inside the filter cylinder 1, and is then discharged from the exhaust pipe 3 to achieve the purpose of filtration. However, when the filter is working for a long time, dust will accumulate on the filter plate 4, affecting the filtration effect. The filter plate 4 needs to be cleaned. When cleaning the filter plate 4, the filter plate 4 can be driven to move up and down quickly to make the filter plate 4 shake. While driving the filter plate 4 to move, the nozzle 6 blows air to one side of the filter plate 4 to blow off the dust on the filter plate 4. The dust is then discharged from the slag discharge port 7 by the airflow, thus achieving the purpose of cleaning the filter plate 4.

[0031] It is worth noting that the filter plate 4 can be driven by tapping it. After tapping the filter plate 4, since the bottom of the filter plate 4 is supported by the bracket 5, the bracket 5 will move down at the same time. When the filter plate 4 moves down, it will compress the second spring 14, while the first spring 13 will stretch due to reduced pressure. The impact force of tapping the filter plate 4 will gradually be converted into the elastic potential energy of the second spring 14 as the filter plate 4 moves down and compresses the second spring 14. After the impact force is completely converted into elastic potential energy, the elastic force of the second spring 14 will bounce the filter plate 4 up. Thus, the filter plate 4 can be shaken by tapping. When the filter plate 4 is filtering normally, the elastic force of the second spring 14 and the first spring 13 are the same, which can keep the filter plate 4 in a stationary state.

[0032] Control valve 21 is installed on intake pipe 2, and control valve 31 is installed on exhaust pipe 3;

[0033] Control valve 21 controls the connection between the intake pipe 2 and the filter cartridge 1, and control valve 31 controls the connection between the exhaust pipe 3 and the filter cartridge 1. During normal ventilation, both control valve 21 and control valve 31 are in the open state, while for the filter plate 4, control valve 21 and control valve 31 need to be turned into the closed state.

[0034] The nozzle 6 is positioned so that the nozzle faces the filter plate 4. Blowing air from the nozzle 6 towards the filter plate 4 can blow the dust off the filter plate 4.

[0035] Please see Figure 1 and Figure 2 As shown, a slag discharge port 7 is installed at the bottom of the filter cylinder 1. The slag discharge port 7 is located between the air inlet pipe 2 and the inlet 11. A control valve 71 is installed on the slag discharge port 7.

[0036] In this embodiment, in order to facilitate the discharge of dust from the filter plate 4 to the outside, a slag discharge port 7 is provided at the bottom of the filter cylinder 1. During normal ventilation, the control valve 3 71 is closed to prevent airflow from being discharged from the slag discharge port 7. When cleaning the filter plate 4, the control valve 3 71 is opened. Since the control valve 1 21 and the control valve 2 31 are closed at this time, the airflow from the nozzle 6 can only flow out from the slag discharge port 7. When the airflow flows out of the slag discharge port 7, it also drives the dust to be discharged from the slag discharge port 7. The nozzle 6 can be connected to external equipment such as an air pump.

[0037] In addition, preferred, such as Figure 1 and Figure 4 As shown, in order to facilitate the disassembly and installation of the filter plate 4 on the filter cylinder 1, and to allow the filter plate 4 to move up and down on the filter cylinder 1, the filter plate 4 is directly inserted into the filter cylinder 1 through the insertion port 11, and the bottom of the filter plate 4 is inserted into the bracket 5, which supports it. The bracket 5 can move up and down with the filter cylinder 1. The filter plate 4 is connected to the connecting rod 12 through the connecting ear 41, and the pin 122 is inserted into the insertion hole 121 to install the filter plate 4. In order to prevent the pin 122 from falling out of the insertion hole 121, a quick-release bolt 123 can be screwed on the top of the connecting rod 12 for fixation.

[0038] Furthermore, in order to prevent leakage at the connection points between the filter plate 4 and the filter cylinder 1, between the filter cylinder 1 and the bracket 5, and between the bracket 5 and the filter plate 4, a sealing structure is provided at the contact points between the two, and the sealing structure can be sealed by a sealing ring.

[0039] The working principle of this utility model is as follows: When the filter is in use, air enters the filter cylinder 1 through one end of the air inlet pipe 2. After being filtered by the filter plate 4 inside the filter cylinder 1, it is discharged from the exhaust pipe 3, thus achieving the purpose of filtration. However, when the filter is working for a long time, dust will accumulate on the filter plate 4, affecting the filtration effect. The filter plate 4 needs to be cleaned. When cleaning the filter plate 4, the filter plate 4 can be driven to move up and down quickly, causing the filter plate 4 to shake. While driving the filter plate 4 to move, the nozzle 6 blows air to one side of the filter plate 4 to blow off the dust on the filter plate 4. The dust is then carried out from the slag discharge port 7 by the airflow, thus achieving the purpose of cleaning the filter plate 4.

[0040] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A filter that is easy to clean and replace, characterized in that: Includes a filter cylinder (1), one end of which is connected to an air inlet pipe (2), and the other end of which is connected to an exhaust pipe (3). The top of the filter cylinder (1) is provided with an inlet (11), and a filter plate (4) is inserted into the interior of the filter cylinder (1) through the inlet (11). A bracket (5) is provided at the bottom of the filter cylinder (1) corresponding to the inlet (11). The filter cylinder (1) is also equipped with a nozzle (6) at its top, which is located between the exhaust pipe (3) and the inlet (11).

2. The filter that is easy to clean and replace according to claim 1, characterized in that: The filter cylinder (1) is slidably provided with connecting rods (12) on both sides. The lower end of the connecting rod (12) is fixedly connected to the bracket (5). The top of the filter plate (4) is provided with a connecting ear (41). The filter plate (4) is connected to the connecting rod (12) through the connecting ear (41). The top side of the connecting rod (12) is provided with a transverse insertion hole (121). The insertion hole (121) is used to insert a pin (122). The upper and lower ends of the connecting rod (12) are respectively provided with a spring one (13) and a spring two (14). The lower end of the spring one (13) rests on the bracket (5), and the upper end of the spring one (13) rests on the filter cylinder (1). The upper end of the spring two (14) rests on the filter plate (4), and the lower end of the spring two (14) rests on the filter cylinder (1).

3. The filter that is easy to clean and replace according to claim 1, characterized in that: A control valve (21) is installed on the air intake pipe (2).

4. The filter that is easy to clean and replace according to claim 1, characterized in that: The exhaust pipe (3) is equipped with a control valve (31).

5. A filter that is easy to clean and replace according to claim 1, characterized in that: The nozzle (6) is positioned so that its nozzle faces the filter plate (4).

6. A filter that is easy to clean and replace according to claim 1, characterized in that: The bottom of the filter cylinder (1) is equipped with a slag discharge port (7), which is located between the air inlet pipe (2) and the inlet (11). A control valve (71) is installed on the slag discharge port (7).

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