Centrifugal fan mesh enclosure

Abstract

The utility model discloses a centrifugal fan mesh enclosure which comprises a first mesh structure, a second mesh structure is installed on the surface of the first mesh structure in a sliding mode, a third mesh structure is installed on the surface of the second mesh structure in a sliding mode, and a fourth mesh structure is installed on the surface of the third mesh structure in a sliding mode. And the first net structure comprises a first connecting plate, a lower L-shaped fixing block, a first screw hole, a first arc rod and a first limiting separation blade, and the first arc rod is fixedly installed on the surface of the first connecting plate. The centrifugal fan mesh enclosure disclosed by the utility model can be shrunk to reduce the occupied space during transportation or when the centrifugal fan mesh enclosure is disassembled and maintained and needs to be transferred, so that the centrifugal fan mesh enclosure is more convenient to transport and store; and chemical attachments attached to the surfaces of the first arc rod, the second arc rod and the third arc rod can be scraped through the first sliding sleeve, the second sliding sleeve and the third sliding sleeve during disassembly and folding, so that the cleaning workload can be greatly reduced, the use amount of a cleaning agent used for cleaning can be greatly reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of fan mesh covers, in particular to a centrifugal fan mesh cover. Background Art

[0002] The centrifugal fan mesh cover is a mesh cover installed on the side inlet port of the centrifugal fan. The main function of this mesh cover is to prevent some large debris from being sucked in during the production process in addition to extracting some exhaust gas. Once large debris is sucked in, the centrifuge will be damaged. Therefore, the centrifuge mesh cover plays a good filtering and protective role. However, when our company uses a separation fan to extract the exhaust gas generated during the production process, the exhaust gas contains a large amount of corrosive substances, which will cause corrosion and damage to the mesh cover if they adhere to the surface of the mesh cover for a long time. Therefore, it is necessary to disassemble and maintain it regularly. During disassembly, the mesh cover is not easy to carry, transport and clean because of its large size, and the stains on its surface are difficult to clean and easy to miss. For this reason, we propose a centrifugal fan mesh cover. Utility Model Content

[0003] The main purpose of the utility model is to provide a centrifugal fan mesh cover, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A centrifugal fan mesh cover comprises a mesh structure No. 1, a mesh structure No. 2 is slidably mounted on the surface of the mesh structure No. 1, a mesh structure No. 3 is slidably mounted on the surface of the mesh structure No. 2, and a mesh structure No. 4 is slidably mounted on the surface of the mesh structure No. 3.

[0006] Furthermore, the No. 1 net structure includes a No. 1 connecting plate, a lower L-shaped fixing block, a No. 1 screw hole, a No. 1 arc rod and a No. 1 limit baffle. The surface of the No. 1 connecting plate is fixedly installed with the No. 1 arc rod, and there are a plurality of No. 1 arc rods. The lower surface of the No. 1 connecting plate is fixedly installed with a lower L-shaped fixing block, and the other end of the No. 1 arc rod is fixedly installed with a No. 1 limit baffle, and the surface of the No. 1 connecting plate is provided with a No. 1 screw hole.

[0007] Furthermore, the No. 2 net structure includes a No. 1 connecting rod, a No. 2 arc rod, a No. 1 sliding sleeve, a left L-shaped fixing block and a No. 2 limiting baffle. The surface of the No. 1 connecting rod is fixedly connected with the No. 2 arc rod, and the number of the No. 2 arc rods is provided in plurality. The connection between the No. 2 arc rod and the No. 1 connecting rod is fixedly installed with a No. 1 sliding sleeve, one end of the No. 1 connecting rod is fixedly installed with a left L-shaped fixing block, and the other end of the No. 2 arc rod is fixedly installed with a No. 2 limiting baffle.

[0008] Furthermore, the No. 3 net structure includes a No. 2 connecting rod, a No. 3 arc rod, a No. 2 sliding sleeve, an upper L-shaped fixing hole and a No. 3 limiting baffle. The surface of the No. 2 connecting rod is fixedly connected with the No. 3 arc rod, and the number of the No. 3 arc rods is provided in plurality. The connection between the No. 2 connecting rod and the No. 3 arc rod is fixedly installed with a No. 2 sliding sleeve, one end of the No. 2 connecting rod is fixedly installed with an upper L-shaped fixing hole, and the other end of the No. 3 arc rod is fixedly installed with a No. 3 limiting baffle.

[0009] Furthermore, the No. 4 net structure includes a No. 3 connecting rod, a No. 4 arc rod, a No. 3 sliding sleeve, a right L-shaped fixing hole, a No. 2 connecting plate and a No. 2 screw hole. The surface of the No. 3 connecting rod is fixedly connected with the No. 4 arc rod, and the number of the No. 4 arc rods is provided in plurality. The connection between the No. 4 arc rod and the No. 3 connecting rod is fixedly installed with a No. 3 sliding sleeve, one end of the No. 3 connecting rod is fixedly installed with a right L-shaped fixing hole, and the other ends of the plurality of No. 3 arc rods are commonly connected to the same No. 2 connecting plate, and the surface of the No. 2 connecting plate is provided with a No. 2 screw hole.

[0010] Furthermore, the No. 1 net structure is movably connected to the No. 2 net structure by inserting the No. 1 arc rod in the No. 1 sliding sleeve, the No. 2 net structure is movably connected to the No. 3 net structure by inserting the No. 2 arc rod in the No. 2 sliding sleeve, and the No. 3 net structure is movably connected to the No. 4 net structure by inserting the No. 3 arc rod in the No. 3 sliding sleeve.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the centrifugal fan mesh cover can be retracted to reduce the occupied space during transportation or when it needs to be transported for disassembly and maintenance, so it is more convenient to transport and store, and the chemical attachments attached to the surfaces of the No. 1 arc rod, the No. 2 arc rod and the No. 3 arc rod can be scraped off by the No. 1 sliding sleeve, the No. 2 sliding sleeve and the No. 3 sliding sleeve when disassembling and folding, which can greatly reduce the cleaning workload and the amount of cleaning agent used for cleaning, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a centrifugal fan mesh cover of the utility model;

[0014] Figure 2 This is a folded display diagram of a centrifugal fan screen of the utility model;

[0015] Figure 3 This is a partial display diagram of a centrifugal fan mesh cover that is folded up according to the utility model.

[0016] In the figure: 1. Net structure No. 1; 101. Connecting plate No. 1; 102. Lower L-shaped fixing block; 103. Screw hole No. 1; 104. Arc rod No. 1; 105. Stop block No. 1; 2. Net structure No. 2; 201. Connecting rod No. 1; 202. Arc rod No. 2; 203. Sliding sleeve No. 1; 204. Left L-shaped fixing block; 205. Stop block No. 2; 3. Net structure No. 3; 301. Connecting rod No. 2; 302. Arc rod No. 3; 303. Sliding sleeve No. 2; 304. Upper L-shaped fixing hole; 305. Stop block No. 3; 4. Net structure No. 4; 401. Connecting rod No. 3; 402. Arc rod No. 4; 403. Sliding sleeve No. 3; 404. Right L-shaped fixing hole; 405. Connecting plate No. 2; 406. Screw hole No. 2. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] Embodiment 1:

[0019] like Figure 1-3 As shown, a centrifugal fan screen includes a No. 1 screen structure 1, a No. 2 screen structure 2 is slidably mounted on the surface of the No. 1 screen structure 1, a No. 3 screen structure 3 is slidably mounted on the surface of the No. 2 screen structure 2, and a No. 4 screen structure 4 is slidably mounted on the surface of the No. 3 screen structure 3;

[0020] The No. 1 net structure 1 includes a No. 1 connecting plate 101, a lower L-shaped fixing block 102, a No. 1 screw hole 103, a No. 1 arc rod 104 and a No. 1 limiting baffle 105. The surface of the No. 1 connecting plate 101 is fixedly installed with the No. 1 arc rod 104, and the number of the No. 1 arc rod 104 is provided with a plurality of them. The lower surface of the No. 1 connecting plate 101 is fixedly installed with the lower L-shaped fixing block 102, and the other end of the No. 1 arc rod 104 is fixedly installed with a No. 1 limiting baffle 105. The surface of the No. 1 connecting plate 101 is provided with a No. 1 screw hole 103, wherein the No. 1 limiting baffle 105 plays a limiting role to prevent the No. 1 arc rod 104 from detaching. Similarly, the No. 2 limiting baffle 205 and the No. 3 limiting baffle 305 also prevent the No. 2 arc rod 202 and the No. 3 arc rod 304 from detaching. 2 detachment; the second net structure 2 includes a first connecting rod 201, a second arc rod 202, a first sliding sleeve 203, a left L-shaped fixing block 204 and a second limiting baffle 205, the surface of the first connecting rod 201 is fixedly connected with the second arc rod 202, the number of the second arc rod 202 is provided in plurality, the connection between the second arc rod 202 and the first connecting rod 201 is fixedly installed with the first sliding sleeve 203, one end of the first connecting rod 201 is fixedly installed with the left L-shaped fixing block 204, and the other end of the second arc rod 202 is fixedly installed with the second limiting baffle 205; the third net structure 3 includes a second connecting rod 301, a third arc rod 302, a second sliding sleeve 303, an upper L-shaped fixing hole 304 and a third limiting baffle 305, the second connecting rod 30 1 is fixedly connected with a third arc rod 302 on the surface, and the number of the third arc rod 302 is provided in plurality, and a second sliding sleeve 303 is fixedly installed at the connection between the second connecting rod 301 and the third arc rod 302, and an upper L-shaped fixing hole 304 is fixedly installed at one end of the second connecting rod 301, and a third limiting baffle 305 is fixedly installed at the other end of the third arc rod 302; the fourth net structure 4 comprises a third connecting rod 401, a fourth arc rod 402, a third sliding sleeve 403, a right L-shaped fixing hole 404, a second connecting plate 405 and a second screw hole 406, and a fourth arc rod 402 is fixedly connected with the surface of the third connecting rod 401, and the number of the fourth arc rod 402 is provided in plurality, and the connection between the fourth arc rod 402 and the third connecting rod 401 is fixed A No. 3 sliding sleeve 403 is installed, one end of the No. 3 connecting rod 401 is fixedly installed with a right L-shaped fixing hole 404, the other ends of multiple No. 3 arc rods 302 are commonly connected to the same No. 2 connecting plate 405, and the surface of the No. 2 connecting plate 405 is provided with a No. 2 screw hole 406, wherein the No. 1 connecting plate 101 and the No. 2 connecting plate 405 are structures for fixed connection after the net cover is fully unfolded; the No. 1 net structure 1 is movably connected to the No. 2 net structure 2 through the No. 1 arc rod 104 inserted in the No. 1 sliding sleeve 203, the No. 2 net structure 2 is movably connected to the No. 3 net structure 3 through the No. 2 arc rod 202 inserted in the No. 2 sliding sleeve 303, and the No. 3 net structure 3 is movably connected to the No. 4 net structure 4 through the No. 3 arc rod 302 inserted in the No. 3 sliding sleeve 403.

[0021] It should be noted that the utility model is a centrifugal fan mesh cover. When installing, the lower L-shaped fixing block 102, the upper L-shaped fixing hole 304, the left L-shaped fixing block 204 and the right L-shaped fixing hole 404 are fixed to the edge of the centrifugal fan air inlet by screws passing through the holes on the surface. After being fixed, it can be used directly. During use, because the extracted gas is the exhaust gas generated in the production process, it is inevitable that chemical substances will adhere to the surface of the mesh cover. In order to prevent the mesh cover from being corroded, the mesh cover needs to be disassembled for regular maintenance. After disassembly, the staff can install the No. 1 arc rod 104 on the No. 1 sliding sleeve 20 3, so that the second arc rod 202 and the first arc rod 104 are stacked up. At the same time, most of the debris on the surface of the first arc rod 104 will be scraped off by the first sliding sleeve 203. Similarly, when the second arc rod 202 is folded up, the second sliding sleeve 303 will scrape off the debris on the surface of the second arc rod 202, and the third sliding sleeve 403 will scrape off the debris on the third arc rod 302. Only the fourth arc rod 402 needs to be manually processed and scraped off, which greatly reduces the trouble of cleaning and saves working time. In addition, the net cover can be folded up in the process to reduce the occupied space and facilitate carrying and transferring to the maintenance site.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A centrifugal fan screen, characterized in that: The invention comprises a No. 1 net structure (1), a No. 2 net structure (2) is slidably mounted on the surface of the No. 1 net structure (1), a No. 3 net structure (3) is slidably mounted on the surface of the No. 2 net structure (2), and a No. 4 net structure (4) is slidably mounted on the surface of the No. 3 net structure (3).

2. The centrifugal fan screen according to claim 1, characterized in that: The No. 1 net structure (1) comprises a No. 1 connecting plate (101), a lower L-shaped fixing block (102), a No. 1 screw hole (103), a No. 1 arc rod (104) and a No. 1 limit baffle (105); the No. 1 arc rod (104) is fixedly mounted on the surface of the No. 1 connecting plate (101); a plurality of the No. 1 arc rods (104) are provided; the lower surface of the No. 1 connecting plate (101) is fixedly mounted with a lower L-shaped fixing block (102); the other end of the No. 1 arc rod (104) is fixedly mounted with a No. 1 limit baffle (105); and the No. 1 screw hole (103) is provided on the surface of the No. 1 connecting plate (101).

3. The centrifugal fan screen according to claim 2, characterized in that: The second net structure (2) comprises a first connecting rod (201), a second arc rod (202), a first sliding sleeve (203), a left L-shaped fixing block (204) and a second limiting baffle (205); the surface of the first connecting rod (201) is fixedly connected with the second arc rod (202); the number of the second arc rods (202) is set to be multiple; the connection between the second arc rod (202) and the first connecting rod (201) is fixedly installed with the first sliding sleeve (203); one end of the first connecting rod (201) is fixedly installed with the left L-shaped fixing block (204); the other end of the second arc rod (202) is fixedly installed with the second limiting baffle (205).

4. The centrifugal fan screen according to claim 3, characterized in that: The No. 3 net structure (3) comprises a No. 2 connecting rod (301), a No. 3 arc rod (302), a No. 2 sliding sleeve (303), an upper L-shaped fixing hole (304) and a No. 3 limiting baffle (305); the surface of the No. 2 connecting rod (301) is fixedly connected with the No. 3 arc rod (302); the number of the No. 3 arc rods (302) is set to be multiple; the connection between the No. 2 connecting rod (301) and the No. 3 arc rod (302) is fixedly installed with the No. 2 sliding sleeve (303); one end of the No. 2 connecting rod (301) is fixedly installed with the upper L-shaped fixing hole (304); the other end of the No. 3 arc rod (302) is fixedly installed with the No. 3 limiting baffle (305).

5. The centrifugal fan screen according to claim 4, characterized in that: The No. 4 net structure (4) comprises a No. 3 connecting rod (401), a No. 4 arc rod (402), a No. 3 sliding sleeve (403), a right L-shaped fixing hole (404), a No. 2 connecting plate (405) and a No. 2 screw hole (406). The surface of the No. 3 connecting rod (401) is fixedly connected with the No. 4 arc rod (402). There are multiple No. 4 arc rods (402). The connection between the No. 4 arc rod (402) and the No. 3 connecting rod (401) is fixedly installed with the No. 3 sliding sleeve (403). One end of the No. 3 connecting rod (401) is fixedly installed with the right L-shaped fixing hole (404). The other ends of the multiple No. 3 arc rods (302) are commonly connected to the same No. 2 connecting plate (405). The surface of the No. 2 connecting plate (405) is provided with a No. 2 screw hole (406).

6. The centrifugal fan screen according to claim 5, characterized in that: The first net structure (1) is movably connected to the second net structure (2) by inserting the first arc rod (104) into the first sliding sleeve (203); the second net structure (2) is movably connected to the third net structure (3) by inserting the second arc rod (202) into the second sliding sleeve (303); the third net structure (3) is movably connected to the fourth net structure (4) by inserting the third arc rod (302) into the third sliding sleeve (403).

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