Fan opening protective net convenient to clean

Abstract

The utility model relates to the technical field of fan protective nets, and discloses a fan opening protective net convenient to clean, which comprises a wall body and a fan body, one side of the wall body is provided with a mounting hole communicated with the fan body, one side of the wall body is fixedly connected with a mounting ring, the mounting ring is internally and detachably connected with a protective cover through a connecting assembly, and the protective cover is fixedly connected with the wall body. The protective cover is hemispherical, a plurality of groups of filtering holes are uniformly distributed in the outer side of the protective cover, a connecting shaft is rotatably connected in one end of the protective cover, two scraping strips which are distributed oppositely are fixedly connected to one end of the connecting shaft, and a driving assembly which enables the scraping strips to rotate to remove dust is arranged on the outer wall of the protective cover. The protective cover can be rapidly installed through the connecting assembly, meanwhile, the scraping strip can clean the inner wall of the protective cover by rotating the scraping strip, and due to the spherical structure of the protective cover, the inner wall of the protective cover can be fully scraped and cleaned when the scraping strip does circumferential rotation motion.

Description

Technical Field

[0001] The utility model relates to the technical field of fan protection nets, and more specifically to a fan outlet protection net which is easy to clean. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. Fans are widely used for ventilation and dust removal in factories, tunnels, buildings, etc., and fan protection nets are used to protect fans.

[0003] At present, there are still some shortcomings in the use of wind turbine safety protection nets, such as the inability to effectively clean the protection nets on a regular basis.

[0004] After searching, a Chinese patent with publication number CN214617233U discloses a fan safety protection net, in which a motor shaft is extended from one end of the second motor and a brush is fixedly connected to one end of the motor shaft, and cleaning is performed by the brush. However, the cleaning range of the brush set on the above protection net is limited, and the cleaning is not thorough. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a fan port protection net that is easy to clean, so as to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a fan outlet protection net that is easy to clean, comprising a wall and a fan body, one side of the wall is provided with a mounting hole connected to the fan body, one side of the wall is fixedly connected with a mounting ring, the mounting ring is detachably connected with a protective cover through a connecting component, the protective cover is hemispherical, the outer side of the protective cover is provided with a plurality of evenly distributed filter holes, one end of the protective cover is rotatably connected with a connecting shaft, one end of the connecting shaft is fixedly connected with two scraping strips distributed in an opposed manner, and the outer wall of the protective cover is provided with a driving component that causes the scraping strips to rotate to remove dust.

[0007] As a further solution of the utility model, the scraper strip is arc-shaped and fits with the inner wall of the shield.

[0008] As a further solution of the utility model, the driving component is a unwinding roller, which is fixedly connected to the other end of the connecting shaft, a pull rope is wrapped around one side of the unwinding roller, a torsion spring is sleeved on the circumferential outer side of the connecting shaft, and both ends of the torsion spring are respectively fixed to the connecting shaft and the inner wall of one side of the protective cover.

[0009] As a further solution of the utility model, a retaining ring is fixedly connected to an outer wall of one side of the shield, one end of the pull rope passes through the retaining ring and is fixedly connected to a pull rod, and the length of the pull rod is much larger than the inner diameter of the retaining ring.

[0010] As a further solution of the utility model, the connecting component is an external thread and an internal thread, the external thread is provided on the circumferential outer wall of the shield, the internal thread is provided on the circumferential inner wall of the mounting ring, and the external thread and the internal thread are threadably engaged.

[0011] As a further solution of the utility model, the connecting assembly is composed of two blocks and two annular grooves. The two blocks are fixedly connected to the outer walls of both sides of the shield in an oppositely distributed manner. The two annular grooves are opened on the outer side of the mounting ring. One side of the mounting ring is opened with two embedded grooves respectively connected to the annular grooves.

[0012] As a further solution of the utility model, both sides of the two embedding grooves are provided with chamfered corners.

[0013] As a further solution of the utility model, one side inner wall of the two annular grooves is fixedly connected with a magnetic block that is magnetically attracted to the clamping block.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model realizes the rapid installation of the shield through the connection assembly, and can clean the inner wall of the shield by rotating the scraper bar. Moreover, due to the spherical structure of the shield, the scraper bar can fully scrape and clean the inner wall of the shield when performing circular rotation motion.

[0016] 2. The utility model pulls the pull rod and the pull rope to make the unwinding roller drive the scraper to achieve rotational motion, and the torsion spring rebounds and resets to make the scraper to achieve reverse rotational motion and make the unwinding roller rewind the pull rope, so as to repeat the cycle and fully clean the inner wall of the shield.

[0017] 3. The utility model inserts the card block into the embedding groove, rotates the shield to move the card block along the ring groove until it contacts the magnetic block, and fixes the card block by magnetic attraction through the magnetic force of the magnetic block, thereby completing the rapid installation of the shield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the rear three-dimensional structure of the first embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of the front three-dimensional structure of the first embodiment of the utility model.

[0020] Figure 3 It is a schematic diagram of the partial decomposition structure of the first embodiment of the utility model.

[0021] Figure 4 It is a schematic diagram of the enlarged structure of part A of the first embodiment of the utility model.

[0022] Figure 5It is a partial cross-sectional structural schematic diagram of the first embodiment of the utility model.

[0023] Figure 6 It is a schematic diagram of the front three-dimensional structure of the second embodiment of the utility model.

[0024] Figure 7 This is a schematic diagram of the partial decomposition structure of the second embodiment of the present utility model.

[0025] The accompanying drawings are marked as follows: 1. mounting hole; 2. wall; 3. fan body; 4. protective cover; 5. mounting ring; 6. internal thread; 7. external thread; 8. connecting shaft; 9. unwinding roller; 10. pull rod; 11. retaining ring; 12. pull rope; 13. torsion spring; 14. scraper strip; 15. clamping block; 16. chamfer; 17. embedding groove; 18. ring groove; 19. magnetic block. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] Reference Figure 1-Figure 5 The utility model provides a fan outlet protection net that is easy to clean, including a wall 2 and a fan body 3. A mounting hole 1 connected to the fan body 3 is opened on one side of the wall 2. A mounting ring 5 is fixed on one side of the wall 2 by bolts. The mounting ring 5 is detachably connected to a shield 4 through an external thread 7 and an internal thread 6. The external thread 7 is opened on the circumferential outer wall of the shield 4, and the internal thread 6 is opened on the circumferential inner wall of the mounting ring 5. The external thread 7 and the internal thread 6 are threadedly engaged, so that the rotating shield 4 is threadedly connected and fixed with the mounting ring 5. The shield 4 is hemispherical, and the outer side of the shield 4 is uniformly opened. There are multiple groups of filter holes distributed, one end of the shield 4 is rotatably connected to a connecting shaft 8, one end of the connecting shaft 8 is fixed with two scraper strips 14 distributed in an opposite manner by bolts, the outer wall of the shield 4 is provided with a driving assembly for rotating the scraper strip 14 to remove dust, the shield 4 can be quickly installed through the connecting assembly, and the scraper strip 14 can be rotated to clean the inner wall of the shield 4, the scraper strip 14 is arc-shaped and fits the inner wall of the shield 4, and due to the spherical structure of the shield 4, the scraper strip 14 can fully scrape and clean the inner wall of the shield 4 when performing a circular rotation motion.

[0029] In order to facilitate the rotation of the scraper strip 14, the driving component in the utility model is a unwinding roller 9, the unwinding roller 9 is key-connected to the other end of the connecting shaft 8, a pull rope 12 is wound around one side of the unwinding roller 9, a torsion spring 13 is sleeved on the circumferential outer side of the connecting shaft 8, and the two ends of the torsion spring 13 are respectively fixed to the connecting shaft 8 and the inner wall of one side of the shield 4, and a retaining ring 11 is fixed to the outer wall of one side of the shield 4 by bolts, one end of the pull rope 12 passes through the retaining ring 11 and is bonded with a pull rod 10, and the length of the pull rod 10 is much larger than the inner diameter of the retaining ring 11, and the unwinding roller 9 drives the scraper strip 14 to realize rotational motion by pulling the pull rod 10 and the pull rope 12, and the scraper strip 14 realizes reverse rotational motion and the unwinding roller 9 reels the pull rope 12 through the rebound reset of the torsion spring 13, and this reciprocating cycle is repeated, so that the inner wall of the shield 4 is fully cleaned.

[0030] The utility model is divided into the following steps when used:

[0031] S1: First, the rotating shield 4 is threadedly connected and fixed to the mounting ring 5 through the external thread 7 and the internal thread 6;

[0032] S2: Then the dust is filtered through the multiple filter holes of the shield 4 without affecting the ventilation;

[0033] S3: During cleaning, the unwinding roller 9 drives the scraper strip 14 to rotate by pulling the pull rod 10 and the pull rope 12, and the scraper strip 14 rotates in the opposite direction by the rebound of the torsion spring 13 and the unwinding roller 9 rewinds the pull rope 12, so that the scraper strip 14 cleans the inner wall of the shield 4 in such a reciprocating cycle;

[0034] S4: Due to the spherical structure of the shield 4, the scraper strip 14 can fully scrape and clean the inner wall of the shield 4 when performing a circular rotation motion;

[0035] S5: Then, the fan blows air again, so that the scraped dust is taken out from the multiple filter holes along with the wind flow, thereby cleaning the dust on the inner wall of the protective cover 4 without disassembling the protective cover 4.

[0036] Embodiment 2:

[0037] Reference Figure 6-Figure 7The utility model provides a fan outlet protection net that is easy to clean, including a wall body 2 and a fan body 3. A mounting hole 1 connected to the fan body 3 is opened on one side of the wall body 2. A mounting ring 5 is fixed to one side of the wall body 2 by bolts. A shield 4 is detachably connected to the mounting ring 5 through two clamping blocks 15 and two annular grooves 18. The shield 4 is hemispherical. The two clamping blocks 15 are welded to the outer walls of the two sides of the shield 4 in an oppositely distributed manner. The two annular grooves 18 are opened on the outer side of the mounting ring 5. Two embedding grooves 17 respectively connected to the annular grooves 18 are opened on one side of the mounting ring 5. The shield 4 A plurality of evenly distributed groups of filter holes are provided on the outer side, a connecting shaft 8 is rotatably connected to one end of the shield 4, two scraper strips 14 distributed in an opposite manner are fixed to one end of the connecting shaft 8 by bolts, chamfers 16 are provided on both sides of the two embedding grooves 17, and a magnetic block 19 that is magnetically attracted to the clamping block 15 is fixed to the inner wall of one side of the two annular grooves 18 by bolts, the clamping block 15 is inserted into the embedding groove 17, and the shield 4 is rotated to make the clamping block 15 move along the annular groove 18 until it contacts the magnetic block 19, and the clamping block 15 is magnetically fixed by the magnetic force of the magnetic block 19, thereby completing the quick installation of the shield 4.

[0038] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0039] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A fan outlet protection net that is easy to clean, comprising a wall (2) and a fan body (3), wherein one side of the wall (2) is provided with a mounting hole (1) that is connected to the fan body (3), and wherein: A mounting ring (5) is fixedly connected to one side of the wall (2), a protective cover (4) is detachably connected to the mounting ring (5) via a connecting assembly, the protective cover (4) is hemispherical, a plurality of evenly distributed filter holes are provided on the outer side of the protective cover (4), a connecting shaft (8) is rotatably connected to one end of the protective cover (4), two scraping strips (14) arranged in an opposed manner are fixedly connected to one end of the connecting shaft (8), and a driving assembly for rotating the scraping strips (14) to remove dust is provided on the outer wall of the protective cover (4).

2. The fan outlet protection net that is easy to clean according to claim 1 is characterized by: The scraper strip (14) is arc-shaped and fits closely to the inner wall of the protective cover (4).

3. The fan outlet protection net that is easy to clean according to claim 1 is characterized by: The driving component is a reel (9), which is fixedly connected to the other end of the connecting shaft (8), a pull rope (12) is wound around one side of the reel (9), a torsion spring (13) is sleeved on the outer side of the circumference of the connecting shaft (8), and two ends of the torsion spring (13) are respectively fixed to the connecting shaft (8) and the inner wall of one side of the protective cover (4).

4. The fan outlet protection net that is easy to clean according to claim 3 is characterized by: A retaining ring (11) is fixedly connected to an outer wall of one side of the shield (4), one end of the pull rope (12) passes through the retaining ring (11) and is fixedly connected to a pull rod (10), and the length of the pull rod (10) is much greater than the inner diameter of the retaining ring (11).

5. The fan outlet protection net that is easy to clean according to claim 1, characterized in that: The connection assembly comprises an external thread (7) and an internal thread (6), wherein the external thread (7) is provided on the circumferential outer wall of the shield (4), and the internal thread (6) is provided on the circumferential inner wall of the mounting ring (5), and the external thread (7) and the internal thread (6) are threadedly engaged.

6. The fan outlet protection net that is easy to clean according to claim 1, characterized in that: The connection assembly comprises two clamping blocks (15) and two annular grooves (18). The two clamping blocks (15) are fixedly connected to the outer walls of the shield (4) on both sides in an opposed distribution manner. The two annular grooves (18) are arranged on the outer side of the mounting ring (5). One side of the mounting ring (5) is provided with two embedding grooves (17) respectively connected to the annular grooves (18).

7. The fan outlet protection net that is easy to clean according to claim 6, characterized in that: Both sides of the two embedding grooves (17) are provided with chamfered corners (16).

8. The fan outlet protection net that is easy to clean according to claim 6, characterized in that: One side inner wall of the two annular grooves (18) is fixedly connected with a magnetic block (19) that is magnetically attracted to the clamping block (15).

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