Novel high-efficiency air supply and return filter for dust-free room

Abstract

The utility model discloses a novel high-efficiency air supply and return filter for a dust-free room, and belongs to the technical field of filters. The novel high-efficiency air supply and return filter for the dust-free room comprises a filter screen, a filter is arranged on the surface of the filter screen, a filtering device is arranged in the filter and comprises a sliding groove, the surface of the sliding groove is fixedly connected to the inner wall of the filter, the surface of the filter screen is slidably connected to the inner wall of the sliding groove, and the surface of the filter screen is fixedly connected to the inner wall of the sliding groove. The end face of the sliding groove is fixedly connected with a first telescopic rod, and the surface of the first telescopic rod is fixedly connected to the inner wall of the filter. The handle on the side face of the filter is pulled, the filter screen is taken out of the sliding groove and cleaned or replaced, in the process, the telescopic rod, the flexible rubber hose, the flexible rubber sleeve, the baffle, the torsional spring rod and other components work cooperatively, the stability and safety of the filter screen in the replacing process are guaranteed, and impurities on the surface of the filter screen are prevented from falling to the bottom.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a new type of supply and return air high-efficiency filter for a clean room. Background Art

[0002] An air filter refers to an air filtration device, generally used in clean workshops, clean factories, clean operating rooms, laboratories and clean rooms, or for dust prevention of electronic machinery communication equipment, etc. Air filters are widely used in other industries and departments that require compressed air purification, such as petroleum, chemical industry, metallurgy, electric power, machinery, light industry, textile, automobile manufacturing, electronics, food, medicine, biochemistry, national defense, scientific research, etc.

[0003] Chinese Patent CN 218972800 U, which was authorized and announced on November 21, 2022, discloses a new type of supply and return air filter for a clean room. Among them, it includes an outer box body, a PEF thermal insulation layer is installed on the inner wall of the outer box body, a dehumidification device is arranged above the right side of the outer box body, a filtering device is arranged at the bottom end inside the inner box body, a air supply plate is fixedly installed at the bottom of the outer box body, and the high-efficiency filter is installed at the bottom of the inner box body. In the above application document, when disassembling the internal filter screen after the filter is used, it is rather troublesome and inconvenient. At the same time, during the disassembly process, due to the movement of the filter screen, the impurities adhered to its surface will fall into the interior of the filter, causing certain harm to the interior. Summary of the Utility Model

[0004] In order to solve the problem of filter element replacement in the prior art, the utility model provides a new type of supply and return air high-efficiency filter for a clean room, which can prevent the impurities adhered to the surface of the filter screen from falling to the bottom of the filter.

[0005] A new type of supply and return air high-efficiency filter for a clean room includes a filter screen, and a filter is arranged on the surface of the filter screen;

[0006] A filtering device is arranged inside the filter, and the filtering device includes a sliding groove. The surface of the sliding groove is fixedly connected to the inner wall of the filter, the surface of the filter screen is slidably connected to the inner wall of the sliding groove, one end of a first telescopic rod is fixedly connected to the end face of the sliding groove, the surface of the first telescopic rod is fixedly connected to the inner wall of the filter, the output end of the first telescopic rod is slidably connected to the inside of the sliding groove, a second telescopic rod is arranged on the surface of the first telescopic rod, a baffle is arranged at the output end of the second telescopic rod, a torsion spring rod is hinged to the top of the baffle, and both ends of the torsion spring rod are rotatably connected to the inner wall of the filter.

[0007] Further, a cleaning device is provided at the bottom of the filter screen. The cleaning device includes a sliding rod, both ends of which are fixedly connected to the inner wall of the filter. A slider is slidably connected to the surface of the filter. A brush is fixedly connected to the bottom of the slider. A stop block is assembled on the bottom surface of the slider, and a snap ring is assembled on the surface of the stop block.

[0008] Further, two sets of the filtering devices are provided, and the two sets are oppositely closed. A soft rubber tube is provided between the first telescopic rod and the second telescopic rod. The two ends of the soft rubber tube respectively penetrate and are fixedly connected to the surfaces of the first telescopic rod and the second telescopic rod. By providing two sets of oppositely closed telescopic rods in the filtering device and a soft rubber tube between the first telescopic rod and the second telescopic rod, the stability and reliability of the filtering device are increased, which can ensure that the filtering device remains stable and reliable during operation, extend its service life, and at the same time reduce the maintenance cost and frequency.

[0009] Further, protective shells are provided on the surfaces of the first telescopic rod and the second telescopic rod. The main effect of providing the protective shells on the surfaces of the first telescopic rod and the second telescopic rod is to provide an additional protection and protective layer to prevent damage or contamination of the telescopic rods by the external environment, thereby reducing the possibility of damage to the telescopic rods. The protective shells can also reduce the risk of damage when the telescopic rods are physically impacted or rubbed, improving the durability and reliability of the telescopic rods.

[0010] Further, the surface of the protective shell is fixedly connected to the inside of the filter. By reducing the possibility of loosening or dislocation of components caused by vibration or external influence during use, through the firm connection between the protective shell and the inside of the filter, the inside and outside environments of the filter can be effectively isolated, which helps to prevent external dust, moisture or other pollutants from entering the inside of the filter, and keeps the working environment of the filter clean and stable.

[0011] Further, a soft rubber sleeve is hinged to the output end surface of the second telescopic rod, and the bottom of the soft rubber sleeve fits on the surface of the baffle. The presence of the soft rubber sleeve can play a shock-absorbing role. When the telescopic rod expands and contracts, the soft rubber sleeve can absorb part of the impact force and vibration, reducing the influence of these forces transmitted to the baffle, thereby reducing the risk of damage to the baffle, preventing sliding or dislocation during movement, and ensuring the safety and reliability of the connecting components.

[0012] Further, the top of the stop block is fixedly connected to the bottom surface of the filter screen. Through the fixed connection, the stop block provides a stable support for the bottom of the filter screen, ensuring that the filter screen maintains the correct position and posture during use, reducing the risk of loosening or damage of components caused by vibration or external influence. The top of the stop block being fixedly connected to the bottom surface of the filter screen can provide the effects of stable support, structural integration and enhanced filtering efficiency.

[0013] Furthermore, a soft rubber cord is provided between the stopper and the slider. Both ends of the soft rubber cord are fixedly connected to the surfaces of the stopper and the slider. The elasticity of the soft rubber cord can reduce the direct contact between the stopper and the slider, thereby playing a role in shock absorption and buffering, reducing the impact and vibration occurring between the stopper and the slider. The soft rubber cord is fixedly connected to the surfaces of the stopper and the slider.

[0014] The difference from the prior art lies in that the beneficial effects of this application are as follows:

[0015] (1) For the novel supply and return air high-efficiency filter for the clean room, by pulling the handle on the side of the filter, the filter screen is taken out from the sliding groove to clean or replace the filter screen. During this process, components such as the telescopic rod, soft rubber tube, soft rubber sleeve, baffle, and torsion spring rod work together to ensure the stability and safety of the filter screen during the replacement process, and prevent impurities on the surface of the filter screen from falling to the bottom.

[0016] (2) For the novel supply and return air high-efficiency filter for the clean room, when the filter screen slides, the soft rubber cord drives the slider to slide on the sliding rod through the snap ring. At the same time, the brush at the bottom of the slider cleans the surface of the baffle, so as to remove the impurities on the baffle, keep the surface of the baffle clean, and ensure the normal operation of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this utility model are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model.

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a partially enlarged schematic diagram of the filtering device of the utility model;

[0020] Figure 3 is a partially enlarged schematic diagram of the filtering device of the utility model;

[0021] Figure 4 is of the utility model Figure 2 A partially enlarged schematic diagram;

[0022] Figure 5 is of the utility model Figure 3 B partially enlarged schematic diagram.

[0023] In the figure:

[0024] 100, filter;

[0025] 200. Filter device; 201. Slide groove; 202. Torsion spring rod; 203. First telescopic rod; 204. Soft rubber tube; 205. Second telescopic rod; 206. Soft rubber sleeve; 207. Baffle

[0026] 300. Cleaning device; 301. Slide rod; 302. Slide block; 303. Brush; 304. Stop block; 305. Snap ring; 306. Soft rubber cord

[0027] 400. Protective case; 500. Filter screen Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices

[0030] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation

[0031] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances

[0032] In addition, the terms "installed", "set up", "provided with", "connected", "linked", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or constituent parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in conjunction with the embodiments.

[0034] Embodiment 1

[0035] Please refer to Figures 1 - 5 , as shown in the figure, a new type of supply and return air high-efficiency filter for a clean room, including a filter mesh 500, and a filter 100 is arranged on the surface of the filter mesh 500;

[0036] The interior of the filter 100 is provided with a filtering device 200. The filtering device 200 includes a sliding groove 201, and the surface of the sliding groove 201 is fixedly connected to the inner wall of the filter 100. There are two sets of filtering devices 200, which are oppositely closed to each other. A soft rubber tube 204 is arranged between the first telescopic rod 203 and the second telescopic rod 205. The two ends of the soft rubber tube 204 respectively penetrate and are fixedly connected to the surfaces of the first telescopic rod 203 and the second telescopic rod 205. By setting two sets of oppositely closed telescopic rods in the filtering device 200 and arranging the soft rubber tube 204 between the first telescopic rod 203 and the second telescopic rod 205, the stability and reliability of the filtering device 200 are increased, which can ensure that the filtering device 200 remains stable and reliable during operation, extend its service life, and at the same time reduce the maintenance cost and frequency. The surface of the filter screen 500 is slidably connected to the inner wall of the sliding groove 201. The end face of the sliding groove 201 is fixedly connected to the first telescopic rod 203. The surface of the first telescopic rod 203 is fixedly connected to the inner wall of the filter 100. The output end of the first telescopic rod 203 is slidably connected to the inside of the sliding groove 201. Protective cases 400 are arranged on the surfaces of the first telescopic rod 203 and the second telescopic rod 205. The main effect of arranging the protective cases 400 on the surfaces of the first telescopic rod 203 and the second telescopic rod 205 is to provide an additional protection and protective layer to prevent damage or contamination of the telescopic rods by the external environment, thereby reducing the possibility of damage to the telescopic rods. The protective case 400 can also reduce the damage risk of the telescopic rods when they are physically impacted or rubbed, improving the durability and reliability of the telescopic rods. The surface of the protective case 400 is fixedly connected to the inside of the filter 100, reducing the possibility of loosening or dislocation of components caused by vibration or external influence during use. Through the firm connection between the protective case 400 and the inside of the filter 100, the inside and outside environments of the filter 100 can be effectively isolated, which helps to prevent external dust, moisture or other pollutants from entering the inside of the filter 100 and keeps the working environment of the filter 100 clean and stable. The second telescopic rod 205 is arranged on the surface of the first telescopic rod 203. A soft rubber sleeve 206 is hinged to the surface of the output end of the second telescopic rod 205. The bottom of the soft rubber sleeve 206 fits the surface of the baffle 207. The presence of the soft rubber sleeve 206 can play a shock-absorbing role. When the telescopic rod expands and contracts, the soft rubber sleeve 206 can absorb part of the impact force and vibration, reducing the influence of these forces transmitted to the baffle 207, thereby reducing the damage risk of the baffle 207 and preventing sliding or dislocation during movement, ensuring the safety and reliability of the connecting components. The baffle 207 is arranged at the output end of the second telescopic rod 205. A torsion spring rod 202 is hinged to the top of the baffle 207. The two ends of the torsion spring rod 202 are rotatably connected to the inner wall of the filter 100.

[0037] During use, first, by pulling the handle on the side of the filter 100 away from the center of the filter 100, the filter screen 500 connected to the other side of the handle is driven to slide inside the chute 201 in the filter 100. When the filter screen 500 slides along the inner wall of the chute 201, the first telescopic rod 203 that originally abutted against the surface of the filter screen 500 loses its supporting force. As a result, the output end of the first telescopic rod 203 extends and slides inside the chute 201. After the first telescopic rod 203 extends, the top of it is connected to the second telescopic rod 205 through a soft rubber tube 204. The hollow part inside the second telescopic rod 205 is drawn into the first telescopic rod 203, causing the second telescopic rod 205 to retract. At the same time, when the second telescopic rod 205 retracts, its output drives the baffle 207 to move through a soft rubber sleeve 206. Meanwhile, the surface of the baffle 207 rotates inside the inner wall of the filter 100 around the torsion spring rod 202. The torsion spring rod 202 drives the two groups of baffles 207 in the filter 100 to rotate synchronously, forming a closed loop to separate the flow inside the filter 100, so as to prevent the impurities on the surface of the filter screen 500 from falling to the bottom of the filter screen 500 when replacing the filter screen 500.

[0038] Meanwhile, for cleaning the surface of the baffle, please refer to Figures 1 - 5 , as shown in the figure, a cleaning device 300 is provided at the bottom of the filter screen 500. The cleaning device 300 includes a sliding rod 301, both ends of which are fixedly connected to the inner wall of the filter 100. A slider 302 is slidably connected to the surface of the filter 100. A brush 303 is fixedly connected to the bottom of the slider 302. A stopper 304 is assembled on the bottom surface of the slider 302, and the top of the stopper 304 is fixedly connected to the bottom surface of the filter screen 500. Through the fixed connection, the stopper 304 provides a stable support for the bottom of the filter screen 500, ensuring that the filter screen 500 maintains the correct position and posture during use, reducing the risk of loosening or damage of components caused by vibration or external influences. The top of the stopper 304 being fixedly connected to the bottom surface of the filter screen 500 can provide the effects of stable support, structural integration, and enhanced filtration efficiency. A soft rubber cord 306 is provided between the stopper 304 and the slider 302, and both ends of the soft rubber cord 306 are fixedly connected to the surfaces of the stopper 304 and the slider 302. The elasticity of the soft rubber cord 306 can reduce the direct contact between the stopper 304 and the slider 302, thereby playing a role in shock absorption and buffering, reducing the impact and vibration occurring between the stopper 304 and the slider 302. The soft rubber cord 306 is fixedly connected to the surfaces of the stopper 304 and the slider 302, and a snap ring 305 is assembled on the surface of the stopper 304.

[0039] In use, when the filter screen 500 is pulled into the interior of the filter 100 through the sliding groove 201, a stop block 304 is connected to the bottom of the filter screen 500, and a snap ring 305 is assembled at the bottom of the stop block 304. When the filter screen 500 slides in the sliding groove 201, a soft rubber cord 306 that fits the inner wall of the snap ring 305 is used to drive the slider 302 at the other end through the soft rubber cord 306. The surface of the slider 302 slides on the slide bar 301, and at the same time, the bottom of the slider 302 uses a brush 303 to slide on the surface of the baffle 207 to clean the surface of the baffle 207.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A new type of high efficiency filter for supply and return air in a clean room, comprising a filter screen (500), wherein a filter (100) is arranged on the surface of the filter screen (500); Features: A filter device (200) is arranged inside the filter (100), and the filter device (200) comprises a slide groove (201), the surface of the slide groove (201) is fixedly connected to the inner wall of the filter (100), the surface of the filter screen (500) is slidably connected to the inner wall of the slide groove (201), the end surface of the slide groove (201) is fixedly connected to a telescopic rod 1 (203), the surface of the telescopic rod 1 (203) is fixedly connected to the inner wall of the filter (100), the output end of the telescopic rod 1 (203) is slidably connected to the inside of the slide groove (201), the surface of the telescopic rod 1 (203) is arranged to a telescopic rod 2 (205), the output end of the telescopic rod 2 (205) is arranged to a baffle (207), the top of the baffle (207) is hinged to a torsion spring rod (202), and the two ends of the torsion spring rod (202) are rotatably connected to the inner wall of the filter (100).

2. The new type of high efficiency filter for supply and return air in a clean room according to claim 1, characterized in that: The filtering device (200) is provided with two groups, the two groups are opposed to each other and closed, a soft rubber tube (204) is provided between the telescopic rod one (203) and the telescopic rod two (205), and two ends of the soft rubber tube (204) respectively pass through and are fixedly connected to the surfaces of the telescopic rod one (203) and the telescopic rod two (205).

3. The new type of high efficiency filter for supply and return air in a clean room according to claim 1, characterized in that: A protective shell (400) is provided on the surface of the telescopic rod 1 (203) and the telescopic rod 2 (205).

4. The new type of high efficiency filter for supply and return air in a clean room according to claim 3, characterized in that: The surface of the protective shell (400) is fixedly connected to the inside of the filter (100).

5. The novel high efficiency filter for supply and return air in a clean room according to claim 4, characterized in that: A soft rubber sleeve (206) is hingedly connected to the surface of the output end of the second telescopic rod (205), and the bottom of the soft rubber sleeve (206) is in contact with the surface of the baffle (207).

6. The new type of high efficiency filter for supply and return air in a clean room according to claim 1, characterized in that: A cleaning device (300) is provided at the bottom of the filter screen (500), and the cleaning device (300) comprises a sliding rod (301), both ends of which are fixedly connected to the inner wall of the filter (100), a sliding block (302) is slidably connected to the surface of the filter (100), a brush (303) is fixedly connected to the bottom of the sliding block (302), a stopper (304) is mounted on the bottom surface of the sliding block (302), and a retaining ring (305) is mounted on the surface of the stopper (304).

7. The new type of high efficiency filter for supply and return air in a clean room according to claim 6, characterized in that: The top of the stopper (304) is fixedly connected to the bottom surface of the filter screen (500).

8. The new type of high efficiency filter for supply and return air in a clean room according to claim 7, characterized in that: A soft rubber rope (306) is provided between the stopper (304) and the slider (302), and both ends of the soft rubber rope (306) are fixedly connected to the surfaces of the stopper (304) and the slider (302).

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