Screw fan filtering structure capable of preventing sundries from being attached

Abstract

The utility model relates to the technical field of fan filtering structures, in particular to a screw fan filtering structure capable of preventing sundries from adhering, which comprises a screw fan body, an annular pipe, an upper cover and a filtering barrel. An annular pipe is connected to the upper surface of the screw fan body, an upper cover is connected to the upper portion of the annular pipe, a filtering barrel abuts against the interior of the annular pipe, an impurity removing mechanism is arranged above the filtering barrel, and a fixing mechanism is arranged in the annular pipe. According to the screw fan filtering structure capable of preventing the sundries from being attached, the speed reduction motor is started to drive the spiral scraping plate and the auger blade to rotate, impurities attached to the surface of the filtering barrel are pushed into the annular box, and therefore the screw fan filtering structure can prevent the sundries from being attached; according to the screw fan filtering structure capable of preventing the impurities from being attached, the spiral disc rotates by rotating the worm, the spiral disc drives the inserting rod to be pulled out of the through hole, then the filtering barrel is pulled upwards and taken down, and therefore the filtering barrel of the screw fan filtering structure is easy to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan filter structure technical field, concretely is a kind of screw fan filter structure for preventing sundries adhesion. BACKGROUND

[0002] Screw blower is the main equipment of gas source, for providing low-pressure compressed air, the common screw blower on market is based on thermal absolute compression principle, efficiency is higher than traditional roots blower, in addition, screw rotor can smoothly output, eliminates internal sudden release, so the airflow fluctuation of exhaust port is much smaller relative to traditional blower, noise is also smaller, so it has been welcomed by market, screw blower needs to filter structure to filter air when using, the existing screw fan filter structure still has certain defect when using, just like;

[0003] The existing screw fan filter structure is usually filtered by filter screen or filter barrel, and impurities are continuously attached to the filter screen after long-time filtering, causing the filter holes to be blocked and affecting the air inlet. Moreover, the filter screen or filter barrel of the existing screw fan filter structure is usually fixed by multiple screws, which has the problem of slow disassembly and assembly efficiency during maintenance or replacement of the filter screen or filter barrel. SUMMARY

[0004] The utility model aims at providing a kind of screw fan filter structure for preventing sundries adhesion to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of screw fan filter structure for preventing sundries adhesion, comprising: screw fan body, annular pipe, upper cover and filter barrel;

[0006] The upper surface of the screw fan body is connected with the annular pipe, the upper cover is connected above the annular pipe, and the filter barrel is abutted inside the annular pipe, the upper part of the filter barrel is provided with a dedusting mechanism, and the inside of the annular pipe is provided with a fixing mechanism.

[0007] The dedusting mechanism comprises a reduction motor, a spiral scraper, an annular box, an L-shaped rod and an auger blade, the inner wall of the upper cover is connected with a reduction motor through a support, the output end of the reduction motor is connected with a spiral scraper through a shaft coupling, and the spiral scraper is abutted on the upper surface of the filter barrel.

[0008] Preferably, the annular box is placed inside the annular pipe.

[0009] Preferably, the spiral scraper is connected with an L-shaped rod on one side.

[0010] Preferably, the bottom of the L-shaped rod is connected with an auger blade, and the auger blade is abutted on the outside of the filter barrel.

[0011] Preferably, the fixing mechanism comprises: an annular groove, a worm wheel, a worm, a slot, a plate, a through hole, a spiral disc and a rod, the inside of the annular pipe is provided with an annular groove, and the inner wall of the annular groove is rotationally connected with the worm wheel.

[0012] Preferably, one side of the worm wheel is meshedly connected with the worm, and the worm penetrates through the inner wall of the annular groove.

[0013] Preferably, the inner wall of the annular pipe close to the lower side of the filter barrel is provided with a slot, the slot is slidably connected with a plate, and the plate is connected to the bottom of the filter barrel.

[0014] Preferably, the plate is provided with a through hole.

[0015] Preferably, the upper surface of the worm wheel is connected with a spiral disc.

[0016] Preferably, the spiral disc is slidably connected with a rod, and the rod penetrates through the inner wall between the annular groove and the slot and is clamped in the through hole.

[0017] Compared with the prior art, the screw fan filter structure for preventing attachment of sundries has the advantages that: the screw fan filter structure is started to drive the spiral scraper and the auger blade to rotate, the impurities attached to the surface of the filter barrel are pushed into the annular box, and the screw fan filter structure is prevented from attaching sundries; the screw fan filter structure is rotated by rotating the worm screw disc, the spiral disc drives the rod to pull out from the through hole, then the filter barrel is pulled up and removed, and the screw fan filter structure is easy to replace the filter barrel, and the specific content is as follows:

[0018] 1. The screw fan filter structure is started to drive the spiral scraper and the auger blade to rotate, the impurities attached to the upper surface and the outer side of the filter barrel are scraped off and pushed into the annular box, the upper cover is opened to pour out the impurities in the annular box, and the screw fan filter structure is prevented from attaching sundries;

[0019] 2. The worm drives the worm wheel to rotate, the worm wheel drives the spiral disc to rotate, the spiral disc drives the rod to pull out from the through hole, then the filter barrel is pulled up, the plate is pulled out, and the filter barrel is removed, and the screw fan filter structure is easy to replace the filter barrel. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional sectional view of the upper cover of the utility model;

[0021] Figure 2 It is a three-dimensional structure schematic view of the utility model;

[0022] Figure 3 It is a three-dimensional structure schematic view of the spiral scraper of the utility model;

[0023] Figure 4 It is the annular pipe three-dimensional section structure schematic view of the utility model;

[0024] Figure 5 It is the spiral disc three-dimensional structure schematic view of the utility model;

[0025] Figure 6 It is the plugboard three-dimensional structure schematic view of the utility model;

[0026] Figure 7 It is the plug rod three-dimensional structure schematic view of the utility model.

[0027] In the drawing: 1, screw fan body;2, annular pipe;3, upper cover;4, filter barrel;5, impurity removal mechanism;501, speed reducer;502, spiral scraper;503, annular box;504, L-shaped rod;505, auger blade;6, fixing mechanism;601, annular groove;602, worm;603, worm;604, plug-in slot;605, plugboard;606, through hole;607, spiral disc;608, plug rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of screw fan filter structure for preventing sundries attachment, it include: screw fan body 1, annular pipe 2, upper cover 3 and filter barrel 4;The upper surface of screw fan body 1 is connected with annular pipe 2, the upper side of annular pipe 2 is connected with upper cover 3, and the inside of annular pipe 2 is in abutment with filter barrel 4, the upper side of filter barrel 4 is provided with impurity removal mechanism 5, and the inside of annular pipe 2 is provided with fixing mechanism 6;Impurity removal mechanism 5 includes: speed reducer 501, spiral scraper 502, annular box 503, L-shaped rod 504 and auger blade 505, the inner wall of upper cover 3 is connected with speed reducer 501 by support, the output end of speed reducer 501 is connected with spiral scraper 502 by shaft coupling, spiral scraper 502 is in abutment on the upper surface of filter barrel 4, annular box 503 is placed in the inside of annular pipe 2, the side of spiral scraper 502 is connected with L-shaped rod 504, the bottom of L-shaped rod 504 is connected with auger blade 505, and auger blade 505 is in abutment on the outside of filter barrel 4.

[0030] In specific implementation, the deceleration motor 501 is started to drive the spiral scraper 502 to rotate, and the impurities attached to the upper surface of the filter barrel 4 are scraped to one side. The spiral scraper 502 drives the L-shaped rod 504 to drive the auger blade 505 to rotate outside the filter barrel 4 while rotating, the impurities attached to the outside of the filter barrel 4 are scraped off, and the impurities are pushed into the annular box 503 for collection. The upper cover 3 is opened regularly to pour out the impurities in the annular box 503, so that the screw fan filter structure prevents impurities from being attached.

[0031] Referring to Figure 1 and Figures 4-7 It can be seen that the fixing mechanism 6 comprises an annular groove 601, a worm wheel 602, a worm 603, a slot 604, a plate 605, a through hole 606, a spiral disc 607 and a plug rod 608. The annular groove 601 is formed in the inner part of the annular pipe 2, the worm wheel 602 is rotatably connected to the inner wall of the annular groove 601, the worm 603 is meshingly connected to one side of the worm wheel 602 and penetrates through the inner wall of the annular groove 601, the slot 604 is formed in the inner wall of the annular pipe 2 near the lower part of the filter barrel 4, the plate 605 is slidably connected in the slot 604, the plate 605 is connected to the bottom of the filter barrel 4, the through hole 606 is formed in the plate 605, the spiral disc 607 is connected to the upper surface of the worm wheel 602, the plug rod 608 is slidably connected in the spiral disc 607, and the plug rod 608 is clamped in the through hole 606 through the inner wall between the annular groove 601 and the slot 604.

[0032] In specific implementation, the rotating worm 603 drives the worm wheel 602 to rotate in the annular groove 601, the worm wheel 602 drives the spiral disc 607 above to rotate, the spiral disc 607 drives the plug rod 608 to slide out of the through hole 606, and the limit on the plate 605 is released. Then the filter barrel 4 is pulled up, the plate 605 is pulled out of the slot 604, and the filter barrel 4 is removed, so that the screw fan filter structure is easy to replace the filter barrel 4.

[0033] In summary: when using the screw fan filter structure for preventing impurities from adhering, firstly, the screw rotor in the screw fan body 1 rotates, air from the outside enters the annular pipe 2 from the upper cover 3, passes through the filter barrel 4 to enter the screw fan body 1, the gas is clamped between the spiral grooves of the screw, and with the rotation of the screw, the gas is gradually compressed in the spiral groove. The rotation of the rotor makes the gas move in the length direction of the screw, the volume gradually decreases, the pressure gradually increases, and the gas is discharged from the air outlet at the bottom of the screw fan body 1, the filtered impurities adhere to the surface of the filter barrel 4, the deceleration motor 501 drives the spiral scraper 502 and the auger blade 505 to rotate, and pushes the adhered impurities into the annular box 503, the upper cover 3 is opened periodically to take out the annular box 503, the impurities in the annular box 503 are poured out, if the filter barrel 4 is corroded or damaged, the rotary worm 603 is rotated, then the filter barrel 4 is pulled up to take down the filter barrel 4, the plug-in plate 605 at the bottom of the filter barrel 4 is inserted into the insertion slot 604, then the rotary worm 603 is turned over for installation, finally the upper cover 3 is installed on the annular pipe 2, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A screw fan filter structure for preventing attachment of foreign matter, comprising: Screw fan body (1), annular pipe (2), upper cover (3) and filter barrel (4), characterized by comprising: The upper surface of the screw fan body (1) is connected with the annular pipe (2), the upper part of the annular pipe (2) is connected with the upper cover (3), and the inside of the annular pipe (2) is abutted with the filter barrel (4), the upper part of the filter barrel (4) is provided with the impurity removal mechanism (5), and the inside of the annular pipe (2) is provided with the fixing mechanism (6). The impurity removal mechanism (5) comprises a reduction motor (501), a spiral scraper (502), an annular box (503), an L-shaped rod (504) and an auger blade (505), the inner wall of the upper cover (3) is connected with the reduction motor (501) through a support, the output end of the reduction motor (501) is connected with the spiral scraper (502) through a shaft coupling, and the spiral scraper (502) is abutted on the upper surface of the filter barrel (4).

2. A screw fan filter structure for preventing attachment of foreign matter according to claim 1, characterized in that: The inside of the annular pipe (2) is placed with the annular box (503).

3. A screw fan filter structure for preventing attachment of foreign matter according to claim 1, characterized in that: One side of the spiral scraper (502) is connected with the L-shaped rod (504).

4. A screw fan filter structure for preventing attachment of foreign matter according to claim 3, characterized in that: The bottom of the L-shaped rod (504) is connected with the auger blade (505), and the auger blade (505) is abutted on the outside of the filter barrel (4).

5. A screw fan filter structure for preventing attachment of foreign matter according to claim 1, characterized in that: The fixing mechanism (6) comprises an annular groove (601), a worm wheel (602), a worm (603), a slot (604), a plug plate (605), a through hole (606), a spiral disc (607) and a plug rod (608), the inside of the annular pipe (2) is provided with the annular groove (601), and the inner wall of the annular groove (601) is rotatably connected with the worm wheel (602).

6. A screw fan filter structure for preventing attachment of foreign matter according to claim 5, characterized in that: One side of the worm wheel (602) is connected with the worm (603) in meshing mode, and the worm (603) penetrates through the inner wall of the annular groove (601) and rotates.

7. A screw fan filter structure for preventing attachment of foreign matter according to claim 6, characterized in that: The inner wall of the annular pipe (2) close to the lower part of the filter barrel (4) is provided with the slot (604), the slot (604) is slidably connected with the plug plate (605), and the plug plate (605) is connected to the bottom of the filter barrel (4).

8. A screw fan filter structure for preventing attachment of foreign matter according to claim 7, characterized in that: The plug plate (605) is provided with the through hole (606).

9. A screw fan filter structure for preventing attachment of foreign matter according to claim 8, characterized in that: The upper surface of the worm wheel (602) is connected with the spiral disc (607).

10. A screw fan filter structure for preventing attachment of foreign matter according to claim 9, wherein: The spiral disc (607) is slidably connected with the plug rod (608), and the plug rod (608) penetrates through the inner wall between the annular groove (601) and the slot (604) and is clamped in the through hole (606).

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