Hot chamber prefilter

Abstract

The utility model relates to the technical field of hot chamber prefilters, in particular to a hot chamber prefilter which comprises a filter device, fixing rings are fixedly connected to the upper end and the lower end of the filter device, grooves are formed in the upper ends of the fixing rings, and cleaning rods are slidably connected to the adjacent ends of the two fixing rings. A plurality of evenly-installed brushes are arranged at the end, close to the filtering device, of the cleaning rod, connecting blocks are fixedly connected to the upper end and the lower end of the cleaning rod, a connecting rod is fixedly connected to the upper end of the connecting block located at the upper end, and a pushing block is fixedly connected to the upper end of the connecting rod; through the arrangement of the connecting rod, the cleaning rod, the brush and the fixing rod, equipment capable of being pushed to clean filtered impurities is additionally arranged on the outer side of an original filtering device, so that people can conveniently clean and maintain the filtering device when using the filtering device, and daily use of people is more convenient; and the practicability of the equipment in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot chamber pre-filters, in particular to a hot chamber pre-filter. Background Art

[0002] The hot chamber is a shielded room for conducting high-radioactivity tests and operations. It is a closed special facility for handling radioactive materials that are harmful to the human body and the environment. Since the radioactive environment contains gamma rays and various radioactive particles such as a and B, the hot chamber can isolate the radioactive environment from the surrounding environment and play a safety shielding role.

[0003] Radioactive gases within the hot chamber are purified primarily through filters, typically using a multi-stage filtration process. To protect the high-performance filters, improve filtration efficiency, and extend their lifespan, a primary exhaust pre-filter is installed at the hot chamber's internal exhaust vent. However, after prolonged use, this filter accumulates impurities, making it difficult to clean and replace on a daily basis. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a hot chamber pre-filter.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: it includes a filtering device, the upper and lower ends of the filtering device are fixedly connected to a fixing ring, the upper end of the fixing ring is provided with a groove, the adjacent ends of the two fixing rings are slidably connected to a cleaning rod, and the cleaning rod is provided with a plurality of evenly installed brushes at one end close to the filtering device, the upper and lower ends of the cleaning rod are fixedly connected to a connecting block, the upper end of the connecting block at the upper end is fixedly connected to a connecting rod, the upper end of the connecting rod is fixedly connected to a pushing block, and the lower end of the connecting block at the lower end is fixedly connected to a fixing rod, the lower end of the fixing rod is rotatably connected to a fixing frame, and the inner side of the fixing frame is rotatably connected to a roller.

[0006] Preferably, a support frame is provided on the inner side of the fixing ring at the upper end, and a fixing block is fixedly connected to one end of the support frame close to the cleaning rod, and a clamping block is fixedly connected to one end of the fixing block close to the cleaning rod.

[0007] As a further improvement of the above technical solution: the blocking block can increase the resistance of the connecting rod when sliding on the inner side, thereby improving the feel during use.

[0008] Preferably, the connecting rod passes through the fixing ring at the upper end, and the connecting rod and the pushing block are slidably connected to the fixing ring at the upper end.

[0009] As a further improvement of the above technical solution: the pushing block can facilitate people to move the cleaning rod on the surface of the filter device.

[0010] Preferably, a sliding cavity is provided on the inner side of the fixing ring at the upper end, and the support rod, the fixing block and the clamping block are located in the sliding cavity provided in the fixing ring.

[0011] As a further improvement of the above technical solution: to facilitate the movement of the clamping block in the fixed ring.

[0012] Preferably, the support frames are arranged in an inclined L-shape, and two support frames form a group. The two support frames are arranged symmetrically, and the support frames are made of plates made of soft stainless steel.

[0013] As a further improvement of the above technical solution: when the clamping block encounters a force, it can squeeze the support frame, causing the support frame to be squeezed and deformed.

[0014] Preferably, the fixing rod passes through the fixing ring at the lower end, and the fixing rod is slidably connected to the fixing ring at the lower end, and the fixing frame and the roller at the lower end of the fixing rod are slidably connected to the fixing ring at the lower end.

[0015] As a further improvement of the above technical solution: the fixing rod can be used to drive the lower fixing frame and the roller to move in the fixing ring at the lower end.

[0016] Preferably, the clamping block passes through the connecting rod, and one end of the clamping block close to the cleaning rod is arranged in a semi-arc shape, and the clamping block is slidably connected to the connecting rod.

[0017] As a further improvement of the above technical solution: damping is provided to the connecting rod by a clamping block.

[0018] The utility model has the following beneficial effects:

[0019] Compared with the existing technology, this hot chamber pre-filter, through the setting of connecting rods, cleaning rods, brushes and fixing rods, adds a device that can be pushed to clean the filtered impurities on the outside of the original filtering device, so that people can clean and maintain it during use, which is more convenient for people's daily use and improves the practicality of the equipment when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at the right side cross-section;

[0022] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A;

[0023] Figure 4 For this utility model Figure 1 Schematic diagram of the structure from a top view and section view.

[0024] Legend:

[0025] 1. Filter device; 2. Fixed ring; 3. Slide; 4. Cleaning rod; 5. Brush; 6. Connecting block; 7. Connecting rod; 8. Pushing block; 9. Fixed rod; 10. Fixed frame; 11. Roller; 12. Support frame; 13. Fixed block; 14. Block; 15. Sliding cavity. DETAILED DESCRIPTION

[0026] Reference Figure 1-4 The utility model provides a hot chamber pre-filter: it includes a filter device 1, the upper and lower ends of the filter device 1 are fixedly connected to a fixing ring 2, the upper end of the fixing ring 2 is provided with a groove, the adjacent ends of the two fixing rings 2 are slidably connected to a cleaning rod 4, and the cleaning rod 4 is provided with a plurality of evenly installed brushes 5 at one end close to the filter device 1. The upper and lower ends of the cleaning rod 4 are fixedly connected to a connecting block 6, the upper end of the connecting block 6 at the upper end is fixedly connected to a connecting rod 7, the upper end of the connecting rod 7 is fixedly connected to a pushing block 8, and the lower end of the connecting block 6 at the lower end is fixedly connected to a fixing rod 9, the lower end of the fixing rod 9 is rotatably connected to a fixing frame 10, and the inner side of the fixing frame 10 is rotatably connected to a roller 11.

[0027] As a further implementation plan of the above technical solution: a support frame 12 is provided on the inner side of the fixed ring 2 at the upper end, and a fixed block 13 is fixedly connected to the end of the support frame 12 close to the cleaning rod 4, and a clamping block 14 is fixedly connected to the end of the fixed block 13 close to the cleaning rod 4. The clamping block 14 can increase the resistance of the connecting rod 7 when sliding on the inside, thereby improving the feel during use.

[0028] As a further implementation scheme of the above technical solution: the connecting rod 7 passes through the fixed ring 2 at the upper end, and the connecting rod 7 and the pushing block 8 are slidingly connected to the fixed ring 2 at the upper end. The pushing block 8 can facilitate people to move the cleaning rod 4 on the surface of the filter device 1.

[0029] As a further implementation scheme of the above technical solution: a sliding cavity 15 is opened on the inner side of the fixed ring 2 located at the upper end, and the support rod, fixed block 13 and clamping block 14 are located in the sliding cavity 15 provided in the fixed ring 2, so as to facilitate the clamping block 14 to move in the fixed ring 2.

[0030] As a further implementation plan of the above technical solution: the support frame 12 is arranged in an inclined L-shape, and two support frames 12 are in a group. The two support frames 12 are arranged symmetrically, and the support frames 12 are made of soft stainless steel plates, so that the blocking block 14 can squeeze the support frame 12 when encountering a selling force, causing the support frame 12 to be squeezed and deformed.

[0031] As a further implementation scheme of the above technical solution: the fixed rod 9 passes through the fixed ring 2 at the lower end, and the fixed rod 9 is slidingly connected to the fixed ring 2 at the lower end, and the fixed frame 10 and the roller 11 at the lower end of the fixed rod 9 are slidingly connected to the fixed ring 2 at the lower end, so that the fixed frame 10 and the roller 11 at the lower end can be driven by the fixed rod 9 to move in the fixed ring 2 at the lower end.

[0032] As a further implementation scheme of the above technical solution: the block 14 passes through the connecting rod 7, and the block 14 is arranged in a semi-arc shape at one end close to the cleaning rod 4. The block 14 is slidingly connected to the connecting rod 7, and the block 14 provides damping to the connecting rod 7.

[0033] Working principle:

[0034] When using the utility model, if the filtering effect is not good during the use of the device, the filter device 1 can be removed from the hot chamber pre-filter, and the pushing block 8 can be pushed manually. At this time, the force applied by the pushing block 8 makes the connecting rod 7, the connecting block 6, the cleaning rod 4 at the lower end and the fixing rod 9 at the lower end, the fixing frame 10 and the internal roller 11 move in the different fixing rings 2 on the upper and lower sides. When the cleaning rod 4 moves on the outside of the filter device 1, the brush 5 in the cleaning rod 4 brushes the dust and impurities on the outside, so as to clean the impurities blocked on the outside of the filter device 1, and when moving During the movement, the lower end fixing rod 9 drives the fixing frame 10 to move in the fixing ring 2, and according to the shape and the moving position of the fixing ring 2, the roller 11 always moves and rotates in a track with the fixing ring 2. According to the shape of the fixing ring 2, the fixing frame 10 and the fixing rod 9 produce a slight rotation under the action of the shape. At the same time, when the connecting rod 7 rotates in the upper end fixing ring 2, it contacts the block 14 and pushes the block 14 toward the position of the support frame 12 as the thrust increases. At this time, the block 14 causes the fixing block 13 to push the position of the support frame 12, and the support frame 12 is squeezed and deformed.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hot chamber pre-filter, comprising a filtering device (1), characterized in that: The upper and lower ends of the filter device (1) are fixedly connected to fixed rings (2), and a groove is provided at the upper end of the fixed ring (2). The adjacent ends of the two fixed rings (2) are slidably connected to cleaning rods (4). The end of the cleaning rod (4) close to the filter device (1) is provided with a plurality of evenly installed brushes (5). The upper and lower ends of the cleaning rod (4) are fixedly connected to connecting blocks (6). The upper end of the connecting block (6) at the upper end is fixedly connected to a connecting rod (7), and the upper end of the connecting rod (7) is fixedly connected to a pushing block (8). The lower end of the connecting block (6) at the lower end is fixedly connected to a fixing rod (9). The lower end of the fixing rod (9) is rotatably connected to a fixing frame (10), and the inner side of the fixing frame (10) is rotatably connected to a roller (11).

2. A hot chamber pre-filter according to claim 1, characterized in that: A support frame (12) is provided on the inner side of the fixing ring (2) at the upper end, and a fixing block (13) is fixedly connected to one end of the support frame (12) close to the cleaning rod (4), and a clamping block (14) is fixedly connected to one end of the fixing block (13) close to the cleaning rod (4).

3. A hot chamber pre-filter according to claim 1, characterized in that: The connecting rod (7) passes through the fixing ring (2) at the upper end, and the connecting rod (7) and the pushing block (8) are slidably connected to the fixing ring (2) at the upper end.

4. A hot chamber pre-filter according to claim 2, characterized in that: A sliding cavity (15) is provided on the inner side of the fixing ring (2) at the upper end, and the support rod, the fixing block (13) and the clamping block (14) are located in the sliding cavity (15) provided in the fixing ring (2).

5. A hot chamber pre-filter according to claim 2, characterized in that: The support frames (12) are arranged in an inclined L-shape, and two support frames (12) form a group. The two support frames (12) are arranged symmetrically, and the support frames (12) are made of a plate material of soft stainless steel.

6. A hot chamber pre-filter according to claim 1, characterized in that: The fixing rod (9) passes through the fixing ring (2) at the lower end, and the fixing rod (9) is slidably connected to the fixing ring (2) at the lower end. The fixing frame (10) and the roller (11) at the lower end of the fixing rod (9) are slidably connected to the fixing ring (2) at the lower end.

7. A hot chamber pre-filter according to claim 2, characterized in that: The clamping block (14) passes through the connecting rod (7), and one end of the clamping block (14) close to the cleaning rod (4) is arranged in a semi-arc shape. The clamping block (14) is slidably connected to the connecting rod (7).

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