Crown block air filtering device

Abstract

The utility model discloses a crown block air filtering device which is applied to the technical field of air filters and comprises a filter and an air storage mechanism, the filter is composed of a shell and an air nozzle, a filter element is installed in an inner cavity of the shell, an air inlet is formed in the shell, an air outlet is formed in the middle end of the filter element, and the air inlet is communicated with the air outlet. A threaded rod is rotated to be in threaded engagement with threaded sleeves, so that through linkage of a linkage toothed belt, the two threaded sleeves synchronously drive a scraping plate to move up and down, impurities blown out of the surface of the filter element are scraped off, residual impurities on the surface of the filter element are reduced, and the back flushing cleaning effect in the filter element is improved; the baffle is driven to slide in the air nozzle through the elastic force of the spring, so that the top of the air nozzle can be blocked, dust is prevented from entering the air nozzle when air is not blown, meanwhile, the surface of the air nozzle can be sealed when air is blown, air is prevented from escaping, and the practicability of the filter reverse blowing device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air filters, and particularly relates to an overhead crane air filter device. Background Art

[0002] Air filters are mainly used in pneumatic mechanisms, overhead crane air filtration devices and other fields. Their function is to provide clean air for these mechanical equipment to prevent them from inhaling air with impurities and particles during operation, which increases the chance of abrasion and damage. The main components of air filters are filter elements and housings, of which the filter element is the main filtering part and is responsible for filtering the gas. Therefore, after a period of use, mechanical equipment needs to be maintained. The current filter maintenance method is to install an air tank on the filter and blow air into the filter element through the air tank to remove dust.

[0003] During the actual operation, the inventor found that the existing filter has at least the following defects: first, since the blowing force of the air tank into the filter element is relatively small, only small particles of impurities can be blown away. Impurity gases with larger particles or greater viscosity are difficult to blow away, so they will still adhere to the surface of the filter element and need to be cleaned manually one by one, reducing the cleaning efficiency of the filter element; secondly, when the air tank is not needed to blow air, dust and impurities are easily introduced into the air nozzle inside the filter element, thereby easily clogging the air pipe and reducing the air outlet efficiency. Utility Model Content

[0004] The utility model aims to provide an overhead crane air filter device, which has the advantages of improving the back-blowing cleaning effect inside the filter element and ensuring the sealing performance of the air jet nozzle surface, thereby improving the air blowing efficiency.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: an overhead crane air filter device, comprising a filter and an air storage mechanism, the filter consisting of a shell and an air nozzle, a filter element is installed in the inner cavity of the shell, an air inlet is provided on the shell, an air outlet is provided at the middle end of the filter element, the air nozzle is installed at the middle end of the shell and is connected to the center hole of the filter element, baffles are slidably connected through both sides of the inside of the air nozzle, the bottoms of the two baffles close to one end of the inside of the air nozzle are provided with inclined surfaces, sliding plates slidably connected to the air nozzle are fixedly sleeved on the surfaces of the two baffles, and a spring fixedly connected to the sliding plate is installed inside the air nozzle.

[0006] By adopting the above technical scheme, the threaded rod is rotated to engage with the threaded sleeve, and then the two threaded sleeves are linked through the linkage toothed belt, so that the scraper is synchronously driven to move up and down, and the impurities blown out from the surface of the filter element are scraped off, thereby reducing the residual impurities on the surface of the filter element and improving the back-blowing cleaning effect inside the filter element; by utilizing the elastic force of the spring to drive the baffle to slide inside the air nozzle, the top of the air nozzle can be blocked to prevent dust from entering the interior when no air is blown, and the surface of the air nozzle can be sealed during blowing to prevent gas from escaping, thereby improving the practicality of the filter back-blowing device.

[0007] The utility model is further configured as follows: threaded rods are rotatably connected to both sides of the inner wall of the shell, a linkage toothed belt is fixedly sleeved on the tops of the two threaded rods, threaded sleeves are threadedly connected to the surfaces of the two threaded rods, and a scraper slidably connected to the shell is fixedly connected to one end of the threaded sleeve close to the filter element.

[0008] By adopting the above technical solution, the top of the air nozzle can be blocked to prevent dust from entering the interior when no air is blown, and the surface of the air nozzle can be sealed during blowing to prevent gas from escaping.

[0009] The utility model is further configured as follows: the air storage mechanism includes an air storage tank arranged on one side of the filter, the air storage tank is connected to the air nozzle through a first pipe and a second pipe, a back-blowing pneumatic pulse valve is installed between the first pipe and the second pipe, an air intake pipe is installed on the top of the second pipe, and the air intake pipe is connected to the clean gas output end of the air compressor.

[0010] By adopting the above technical solution, the filter element can be automatically blown to remove dust, which reduces the maintenance cost of the air filtration device and effectively extends the service life of the air compressor.

[0011] The utility model is further configured as follows: a control mechanism is installed on the side of the filter away from the air storage mechanism, and the control mechanism includes a main control unit for controlling the action of the back-blowing pneumatic pulse valve, and the main control unit is electrically connected to the back-blowing pneumatic pulse valve through a main control line.

[0012] By adopting the above technical solution, the filter element can be automatically blown to remove dust, which reduces the maintenance cost of the air filtration device and effectively extends the service life of the air compressor.

[0013] The utility model is further configured as follows: a protective partition net which is slidably connected to the scraper is fixedly sleeved on the surface of the filter element.

[0014] The above technical solution is adopted to reduce the wear of the filter element caused by the scraper sliding up and down to scrape dust, thereby increasing the service life of the filter element.

[0015] The utility model is further configured as follows: a sealing pad used in conjunction with a filter element is bonded to one end of the baffle away from the inside of the air jet nozzle.

[0016] The above technical solution is adopted to improve the sealing performance between the baffle and the filter element.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. By rotating the threaded rod and the threaded sleeve, the two threaded sleeves are linked by the toothed belt, so that the scraper moves up and down synchronously to scrape off the impurities blown out of the filter element surface, thereby reducing the residual impurities on the filter element surface and improving the back-blowing cleaning effect inside the filter element;

[0019] 2. By utilizing the elastic force of the spring to drive the baffle to slide inside the air nozzle, the top of the air nozzle can be blocked to prevent dust from entering the interior when no air is blown. At the same time, the surface of the air nozzle can be sealed during blowing to prevent gas from escaping, thereby improving the practicality of the filter back-blowing device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in .

[0023] Figure numerals: 1. filter; 11. filter element; 12. housing; 13. air nozzle; 14. air inlet; 15. threaded rod; 16. linked toothed belt; 17. threaded sleeve; 18. scraper; 19. protective screen; 2. air storage mechanism; 21. air storage tank; 22. first pipeline; 23. back-blowing pneumatic pulse valve; 24. second pipeline; 25. air inlet pipeline; 3. control mechanism; 31. main control unit; 32. main control circuit; 33. air outlet; 4. baffle; 5. sliding plate; 6. spring; 7. sealing gasket. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Embodiment 1:

[0026] refer to Figure 1 , Figure 2 , Figure 3, an overhead crane air filter device comprises a filter 1 and an air storage mechanism 2, the filter 1 is composed of a shell 12 and an air nozzle 13, a filter element 11 is installed in the inner cavity of the shell 12, an air inlet 14 is provided on the shell 12, an air outlet 33 is provided at the middle end of the filter element 11, the air nozzle 13 is installed at the middle end of the shell 12 and is connected with the center hole of the filter element 11, baffles 4 are penetrated and slidably connected on both sides of the inside of the air nozzle 13, the bottom of the two baffles 4 near one end of the inside of the air nozzle 13 is provided with an inclined surface, the surfaces of the two baffles 4 are fixedly sleeved with sliding plates 5 slidably connected with the air nozzle 13, and a spring 6 fixedly connected with the sliding plate 5 is installed inside the air nozzle 13; by rotating the threaded rod 15 and threading the threaded sleeve 17, the two threaded sleeves 17 are linked by the linkage toothed belt 16, so that the two threaded sleeves 17 synchronously drive the scraper 18 to move up and down, and the impurities blown out of the surface of the filter element 11 are scraped off, thereby reducing the residual impurities on the surface of the filter element and improving the back-blowing cleaning effect inside the filter element.

[0027] refer to Figure 1 , Figure 2 The air storage mechanism 2 includes an air storage tank 21 arranged on one side of the filter 1. The air storage tank 21 is connected to the air nozzle 13 through a first pipe 22 and a second pipe 24. A back-blowing pneumatic pulse valve 23 is installed between the first pipe 22 and the second pipe 24. An air intake pipe 25 is installed on the top of the second pipe 24. The air intake pipe 25 is connected to the clean gas output end of the air compressor, so as to realize automatic air blowing and dust removal of the filter element, reduce the maintenance cost of the air filter device, and effectively extend the service life of the air compressor.

[0028] refer to Figure 1 , Figure 2 A control mechanism 3 is installed on the side of the filter 1 away from the air storage mechanism 2. The control mechanism 3 includes a main control unit 31 for controlling the action of the back-blowing pneumatic pulse valve 23. The main control unit 31 is electrically connected to the back-blowing pneumatic pulse valve 23 through a main control line 32, so as to realize automatic air blowing and dust removal of the filter element, reduce the maintenance cost of the air filtering device, and effectively extend the service life of the air compressor.

[0029] refer to Figure 3 A sealing gasket 7 used in conjunction with the filter element 11 is bonded to one end of the baffle plate 4 away from the inside of the air nozzle 13 to improve the sealing performance between the baffle plate 4 and the filter element 11.

[0030] Brief description of the use process: First, use the air intake pipe 25 to input the clean gas inside the air compressor into the air tank 21, then open the control mechanism 3 to control the back-blowing pneumatic pulse valve 23, so that the clean gas inside the air tank 21 can be input into the inside of the air nozzle 13 through the first pipe 22 and the second pipe 24 and sprayed out from the center of the filter element 11, so that the clean gas can blow out the dust and impurities accumulated in the filter element 11, and then rotate the threaded rod 15 to engage with the threaded sleeve 17, so that the two threaded sleeves 17 can synchronously drive the scraper 18 to move up and down through the linkage belt 16 to scrape off the impurities blown out from the surface of the filter element 11.

[0031] Embodiment 2:

[0032] refer to Figure 1 , Figure 2 , an overhead crane air filter device, both sides of the inner wall of the shell 12 are rotatably connected with threaded rods 15, the tops of the two threaded rods 15 are fixedly sleeved with a linkage toothed belt 16, the surfaces of the two threaded rods 15 are threadedly connected with threaded sleeves 17, and the end of the threaded sleeve 17 close to the filter element 11 is fixedly connected with a scraper 18 slidably connected to the shell 12; the elastic force of the spring 6 is used to drive the baffle 4 to slide inside the air nozzle 13, so that the top of the air nozzle 13 can be blocked to prevent dust from entering the interior when no air is blown, and the surface of the air nozzle 13 can be sealed when blowing to prevent gas from escaping, thereby improving the practicality of the filter backblowing device.

[0033] refer to Figure 2 The surface of the filter element 11 is fixedly sleeved with a protective screen 19 that is slidably connected to the scraper 18, which reduces the wear of the filter element caused by the scraper 18 sliding up and down and scraping dust, thereby increasing the service life of the filter element.

[0034] Brief description of the use process: After the gas is input into the air nozzle 13, the gas passes through the inclined surface at the bottom of the baffle 4, thereby pushing the baffle 4 to move to both sides, and then opening the top of the air nozzle 13. At the same time, the other end of the baffle 4 slides to the outside of the air nozzle 13 and fits with the filter element 11, thereby blocking the surface of the air nozzle 13 to prevent gas from escaping. After the back-blowing cleaning is completed, the gas inside the air nozzle 13 is not enough to overcome the rebound force of the spring 6, so that the spring 6 pushes the sliding plate 5 to drive the baffle 4 to reset, thereby sealing the top of the air nozzle 13 to prevent dust from entering. At the same time, the filter can discharge the gas normally through the air outlet 33.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An overhead crane air filter device, comprising a filter (1) and an air storage mechanism (2), characterized in that: The filter (1) is composed of a shell (12) and an air nozzle (13). A filter element (11) is installed in the inner cavity of the shell (12). An air inlet (14) is provided on the shell (12). An air outlet (33) is provided at the middle end of the filter element (11). The air nozzle (13) is installed at the middle end of the shell (12) and is connected to the center hole of the filter element (11). Baffles (4) are slidably connected to both sides of the interior of the air nozzle (13). The bottoms of the two baffles (4) close to one end of the interior of the air nozzle (13) are provided with inclined surfaces. The surfaces of the two baffles (4) are fixedly sleeved with sliding plates (5) slidably connected to the air nozzle (13). A spring (6) fixedly connected to the sliding plate (5) is installed inside the air nozzle (13).

2. The overhead crane air filter device according to claim 1, characterized in that: Threaded rods (15) are rotatably connected to both sides of the inner wall of the shell (12); the tops of the two threaded rods (15) are fixedly sleeved with linked toothed belts (16); the surfaces of the two threaded rods (15) are threadedly connected to threaded sleeves (17); and one end of the threaded sleeve (17) close to the filter element (11) is fixedly connected to a scraper (18) slidably connected to the shell (12).

3. The overhead crane air filter device according to claim 1, characterized in that: The gas storage mechanism (2) comprises an air storage tank (21) arranged on one side of the filter (1); the air storage tank (21) is connected to the air nozzle (13) through a first pipe (22) and a second pipe (24); a back-blowing pneumatic pulse valve (23) is installed between the first pipe (22) and the second pipe (24); an air intake pipe (25) is installed on the top of the second pipe (24); and the air intake pipe (25) is connected to the clean gas output end of the air compressor.

4. The overhead crane air filter device according to claim 3, characterized in that: A control mechanism (3) is installed on a side of the filter (1) away from the air storage mechanism (2), and the control mechanism (3) includes a main control unit (31) for controlling the action of the back-blowing pneumatic pulse valve (23), and the main control unit (31) is electrically connected to the back-blowing pneumatic pulse valve (23) via a main control line (32).

5. The overhead crane air filter device according to claim 2, characterized in that: A protective screen (19) which is slidably connected to the scraper (18) is fixedly sleeved on the surface of the filter element (11).

6. The overhead crane air filter device according to claim 1, characterized in that: A sealing gasket (7) used in conjunction with the filter element (11) is bonded to one end of the baffle (4) away from the inside of the air nozzle (13).

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