CN114857098A

CN114857098A - Roof axial flow fan

Info

Publication number: CN114857098A
Application number: CN202210587297.0A
Authority: CN
Inventors: 冯银华; 陈军峰; 杨美娟
Original assignee: Foshan City Torch Bay Land Special Hvac Technology Co ltd
Current assignee: Foshan City Torch Bay Land Special Hvac Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-08-05
Anticipated expiration: 2042-05-25
Also published as: CN114857098B

Abstract

The utility model relates to a roof axial fan, the technical field who relates to axial fan, it is including seting up logical groove, the base member of mounting groove, detachable installation on the base member and with the bracing piece of mounting groove looks adaptation, horizontal installation deviates from the visor of base member one side in the bracing piece, slidable mounting on the base member and with the first collar of logical groove looks adaptation, horizontal mounting is the first filter screen on first collar, install on the base member and be located first collar below and with the second collar of logical groove looks adaptation, horizontal mounting is the second filter screen on the second collar. The application can filter the gas that flows through.

Description

Roof axial flow fan

Technical Field

The invention relates to the field of axial flow fans, in particular to a roof axial flow fan.

Background

Axial fans are used widely in daily life, such as in petroleum, chemical, textile, mechanical factory buildings and warehouses, and can make air flow in a direction parallel to a fan shaft.

At present, a roof axial flow fan is generally arranged on a roof and is beneficial to indoor ventilation after being started.

In view of the related art in the above, the inventors consider that there are drawbacks in that: traditional roof axial fan simple structure, when carrying out ventilation, can not filter the gas that flows through, in long-time use, have the condition of jam. For this reason, further improvement is awaited.

Disclosure of Invention

In order to filter the gas that flows through, this application provides a roof axial fan.

The application provides a roof axial fan adopts following technical scheme:

the utility model provides a roof axial fan, including set up logical groove, the base member of mounting groove, detachable install in on the base member and with bracing piece, the horizontal installation of mounting groove looks adaptation in the bracing piece deviate from visor, the slidable mounting of base member one side in on the base member and with lead to first collar, the horizontal installation of groove looks adaptation in first filter screen on the first collar, install in on the base member and be located first collar below and with lead to second collar, the horizontal installation in second filter screen on the second collar, the extending direction who leads to groove, mounting groove all parallels with the direction of height of base member, lead to the central axis that the groove is located the base member, the mounting groove is located the top surface of base member.

Through adopting above-mentioned technical scheme, the first filter screen that sets up can prefilter gas, and the second filter screen can filter gas once more to realize gaseous filtration, reduce the debris in the gas.

Optionally, the sliding tray that the extending direction parallels with the direction of height of base member is seted up to the inside wall of base member, the lateral wall horizontal installation of first collar has the sliding block with sliding tray looks adaptation, one side detachable the installing of first collar that deviates from the second collar has the third collar, the top surface horizontal installation of third collar has the fourth collar, the third filter screen is installed to the bottom surface of fourth collar, the third filter screen is opening right circular cone type up, be provided with on the first filter screen and be used for reducing the clearance subassembly of debris adhesion on the third filter screen, be provided with on the base member and be used for driving the drive assembly that vertical motion was made to first collar, the bottom surface of third collar is provided with the spacing subassembly that is used for restricting third collar position.

Through adopting above-mentioned technical scheme, the third filter screen that sets up can filter gas, makes the debris in the gas blocked on the third filter screen to debris can be gathered together and put the department at the central point of third filter screen, reduces the whole circumstances that is covered by debris and gas can not flow through of third filter screen in long-time the use.

Optionally, the cleaning assembly comprises a wear-resistant block attached to one side of the third filter screen close to the first filter screen, a horizontal mounting block horizontally mounted on one side of the first filter screen, a starting motor horizontally mounted on the bearing surface of the cushion block, and a cam mounted on the output shaft of the starting motor and abutted against the surface of the wear-resistant block.

Through adopting above-mentioned technical scheme, the starter motor who sets up can make the third filter screen do reciprocating lifting motion through the cam to reduce the condition that debris remain on the third filter screen.

Optionally, the drive assembly includes horizontal installation in driving motor on the base member lateral wall, install in driving roller on the driving motor output shaft, vertical installation in fixed pulley on the base member top surface, install in on the driving roller and walk around the fixed pulley then with the drive line that the top surface of first collar is connected, and set up in be used for guiding first collar on the sliding tray and make elevating movement's guide part.

Through adopting above-mentioned technical scheme, the driving motor who sets up can make first collar do elevating movement through drive roller and drive wire to be convenient for the third filter screen dismantles out and carries out the cleaning work.

Optionally, the guide part includes vertical installation in the guide bar that the sliding block was gone up and passed to the sliding tray, the cover is located on the guide bar and one end is connected with the roof of sliding tray, the extension spring that the other end is connected with the top surface of first collar.

Through adopting above-mentioned technical scheme, the guide bar of setting can guide the sliding block and make vertical motion to stability when improving the sliding block and making vertical motion.

Optionally, a limiting ring groove is formed in the bearing surface of the first mounting ring, the limiting assembly comprises a limiting ring which is annularly arranged on the bottom surface of the third mounting ring and is matched with the limiting ring groove, and an arc edge is formed in the edge of one side of the limiting ring, which deviates from the third mounting ring.

Through adopting above-mentioned technical scheme, the spacing ring can restrict the horizontal position of third collar for first collar to improve the practicality of third collar.

Optionally, a fixing ring is horizontally installed in the base body and located between the first mounting ring and the second mounting ring, and a cushion pad is attached to one side, away from the second mounting ring, of the fixing ring.

Through adopting above-mentioned technical scheme, the fixed ring that sets up can restrict the lowest position of first collar to reduce the condition that first collar and second collar bump.

Optionally, the second filter has a smaller mesh than the first filter.

Through adopting above-mentioned technical scheme, the mesh of second filter screen is than the less condition that can reduce the less debris of size and pass the second filter screen in the setting of the mesh of first filter screen to improve the practicality of second filter screen.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first filter screen can preliminarily filter gas, and the second filter screen can filter gas again, so that the gas is filtered, and impurities in the gas are reduced;

2. the starter motor who sets up can make the third filter screen do reciprocating lifting motion through the cam to reduce the condition that debris remain on the third filter screen.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a cross-sectional view of an embodiment of the present application for embodying a support pole;

FIG. 3 is a cross-sectional view of an embodiment of the present application embodying a suction fan;

FIG. 4 is an enlarged view of an embodiment of the present application for embodying a stop collar.

Description of reference numerals:

1. a substrate; 11. a through groove; 12. mounting grooves; 13. a sliding groove; 131. a guide bar; 14. a drive motor; 141. a drive roller; 142. driving a wire; 15. a fixed pulley; 16. a fixing ring; 161. a cushion pad;

2. a support bar; 21. a protective cover;

3. a first mounting ring; 31. a first filter screen; 32. a slider; 33. cushion blocks; 34. starting the motor; 35. a cam; 36. a tension spring; 37. a limiting ring groove;

4. a second mounting ring; 41. a second filter screen;

5. a third mounting ring; 51. a fourth mounting ring; 52. a third filter screen; 521. a wear-resistant block; 53. a limiting ring; 54. a circular arc edge;

6. an exhaust fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-4 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

The embodiment of the application discloses roof axial fan.

As shown in fig. 1, 2 and 3, the roof axial flow fan includes a base 1 and a protective cover 21, the longest vertical cross-section side of the base 1 is the height direction of the base 1, a through groove 11 is formed on the base 1, the longest vertical cross-section side of the through groove 11 is the extending direction of the through groove 11, the through groove 11 is located on the central axis of the base 1, and the extending direction of the through groove 11 is parallel to the height direction of the base 1; the mounting structure comprises a base body 1, a mounting groove 12 is formed in the base body 1, the longest vertical section side of the mounting groove 12 is the extending direction of the mounting groove 12, the mounting groove 12 is located on the top surface of the base body 1, the extending direction of the mounting groove 12 is parallel to the height direction of the base body 1, four mounting grooves 12 are totally formed in the mounting groove 12, four support rods 2 are detachably mounted on the base body 1, the support rods 2 are located on the mounting groove 12, the support rods 2 correspond to the mounting grooves 12 in a one-to-one mode, the shapes of the support rods 2 are matched with the outline of the mounting groove 12, a protective cover 21 is horizontally mounted on one side, away from the base body 1, of each support rod 2, a first mounting ring 3 is slidably mounted on the base body 1, the first mounting ring 3 is located in a through groove 11, the shape of the first mounting ring 3 is matched with the outline of the through groove 11, and a first filter screen 31 is horizontally mounted on the first mounting ring 3; a second mounting ring 4 is mounted on the base body 1, the second mounting ring 4 is positioned in the through groove 11, the shape of the second mounting ring 4 is matched with the outline of the through groove 11, the second mounting ring 4 is positioned below the first mounting ring 3, and a second filter screen 41 is horizontally mounted on the second mounting ring 4; an exhaust fan 6 is arranged on the base body 1, the exhaust fan 6 is positioned in the through groove 11, and the exhaust fan 6 is positioned below the second mounting ring 4.

Air outside the base body 1 can be drawn into the base body 1 by the exhaust fan 6 when the exhaust fan is started, air flows in from the top of the through groove 11 and flows out from the bottom of the through groove 11, the first filter screen 31 can preliminarily filter impurities in flowing air, and the second filter screen 41 can filter the impurities in the flowing air again.

In order to improve the filtering effect, the mesh of the second filter 41 is smaller than that of the first filter 31, so that the impurities with larger size are blocked above the first filter 31, and the impurities with smaller size are blocked above the second filter 41.

As shown in fig. 1 and 3, two sliding grooves 13 are formed in the inner side wall of the base 1, the two sliding grooves 13 are arranged in bilateral symmetry, the longest vertical cross-section side of each sliding groove 13 is the extending direction of the corresponding sliding groove 13, and the extending direction of each sliding groove 13 is parallel to the height direction of the base 1; two sliding blocks 32 are horizontally arranged on the side wall of the first mounting ring 3, the sliding blocks 32 correspond to the sliding grooves 13 one by one, and the shapes of the sliding blocks 32 are matched with the profiles of the sliding grooves 13; a third mounting ring 5 is detachably mounted on one side of the first mounting ring 3, which is away from the second mounting ring 4, a fourth mounting ring 51 is horizontally mounted on the top surface of the third mounting ring 5, and a third filter screen 52 is mounted on the bottom surface of the fourth mounting ring 51, wherein in the embodiment, the third filter screen 52 is in a right circular cone shape with an upward opening.

When the flowing gas flows through the third filter screen 52, the impurities in the flowing gas are continuously adhered to the third filter screen 52, that is, the impurities in the flowing gas can be filtered by the third filter screen 52, and the impurities are gradually gathered at the center of the third filter screen 52 under the action of gravity.

As shown in fig. 1 and 3, in order to reduce the adhesion of impurities to the third filter screen 52, a cleaning assembly is disposed on the first filter screen 31, in this embodiment, the cleaning assembly includes a wear-resistant block 521 and a spacer block 33, the wear-resistant block 521 is attached to a side of the third filter screen 52 close to the first filter screen 31, the spacer block 33 is horizontally mounted on a side of the first filter screen 31 away from the second filter screen 41, a starting motor 34 is horizontally mounted on a bearing surface of the spacer block 33, a cam 35 is mounted on an output shaft of the starting motor 34, and a surface of the cam 35 is in contact with a surface of the wear-resistant block 521.

The worker can start the starting motor 34, the output shaft of the starting motor 34 rotates, the cam 35 rotates around the axis direction of the output shaft of the starting motor 34, the cam 35 continuously beats the wear-resistant block 521, the third filter screen 52 makes reciprocating lifting movement, and then sundries adhered to the third filter screen 52 are shaken off the third filter screen 52.

As shown in fig. 1 and 3, in order to facilitate the workers to clean the impurities on the first filter screen 31 and the third filter screen 52, a driving assembly is disposed on the base 1, and the driving assembly can drive the first mounting ring 3 to move vertically, in this embodiment, the driving assembly includes a driving motor 14 and a driving roller 141, the driving motor 14 is horizontally mounted on the outer side wall of the base 1, the driving roller 141 is mounted on the output shaft of the driving motor 14, a fixed pulley 15 is vertically mounted on the top surface of the base 1, a driving wire 142 is mounted on the driving roller 141, and the driving wire 142 firstly passes around the fixed pulley 15 and then is connected with the top surface of the first mounting ring 3.

The staff can dismantle the visor 21 out earlier, then open driving motor 14, and driving motor 14's output shaft rotates, and drive roller 141 is driven, and drive wire 142 is rolled up, and vertical upward movement is made to first collar 3, then dismantles and clears up third filter screen 52, clears up first filter screen 31 again.

As shown in fig. 1 and 3, in order to guide the first mounting ring 3 to move up and down, the driving assembly includes a guiding member disposed on the sliding groove 13, in this embodiment, the guiding member includes a guiding rod 131 and a tension spring 36, the guiding rod 131 is vertically mounted on the sliding groove 13, the guiding rod 131 passes through the sliding block 32, the tension spring 36 is sleeved on the guiding rod 131, one end of the tension spring 36 is connected to the top wall of the sliding groove 13, and the other end of the tension spring 36 is connected to the top surface of the first mounting ring 3.

When the first mount ring 3 moves vertically upward, the tension spring 36 contracts, and applies a vertically upward force to the first mount ring 3.

As shown in fig. 1 and 3, when the worker wants to reposition the first mounting ring 3, the worker can reversely start the driving motor 14 to pay out the driving wire 142, so that the first mounting ring 3 moves vertically downwards under the action of the gravity of the worker, and the tension spring 36 is stretched; in order to limit the position of the first mounting ring 3, a fixing ring 16 is horizontally mounted in the base body 1, the fixing ring 16 is located between the first mounting ring 3 and the second mounting ring 4, a cushion pad 161 is attached to one side, facing away from the second mounting ring 4, of the fixing ring 16, and the fixing ring 16 can limit the lowest position of the first mounting ring 3.

As shown in fig. 1 and fig. 3, in order to limit the position of the third installation ring 5 relative to the first installation ring 3, the driving assembly includes a limiting assembly, in this embodiment, a limiting ring groove 37 is formed on the bearing surface of the first installation ring 3, the limiting assembly is disposed on the bottom surface of the third installation ring 5, the limiting assembly includes a limiting ring 53, the limiting ring 53 is disposed on the bottom surface of the third installation ring 5, the shape of the limiting ring 53 is adapted to the contour of the limiting ring groove 37, and an arc edge 54 is formed on an edge of the limiting ring 53 away from the third installation ring 5.

The implementation principle of the roof axial flow fan in the embodiment of the application is as follows: the worker first detaches the protective cover 21, then starts the driving motor 14, the output shaft of the driving motor 14 rotates, the driving roller 141 is driven, the driving wire 142 is wound, the first mounting ring 3 moves vertically upwards, then detaches and cleans the third filter screen 52, and then cleans the first filter screen 31; the driving motor 14 is reversely started to discharge the driving wire 142, so that the first mounting ring 3 moves vertically downward under the action of its own gravity, and the tension spring 36 is stretched.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A roof axial flow fan is characterized by comprising a base body (1) provided with a through groove (11) and a mounting groove (12), a support rod (2) which is detachably arranged on the base body (1) and is matched with the mounting groove (12), a protective cover (21) which is horizontally arranged on one side of the support rod (2) departing from the base body (1), a first mounting ring (3) which is slidably arranged on the base body (1) and is matched with the through groove (11), a first filter screen (31) which is horizontally arranged on the first mounting ring (3), a second mounting ring (4) which is arranged on the base body (1), is positioned below the first mounting ring (3) and is matched with the through groove (11), and a second filter screen (41) which is horizontally arranged on the second mounting ring (4), wherein the extending directions of the through groove (11) and the mounting groove (12) are both parallel to the height direction of the base body (1), the through groove (11) is located on the central axis of the base body (1), and the mounting groove (12) is located on the top surface of the base body (1).

2. The roof axial flow fan according to claim 1, wherein the inner side wall of the base body (1) is provided with a sliding groove (13) with an extending direction parallel to the height direction of the base body (1), the side wall of the first mounting ring (3) is horizontally provided with a sliding block (32) matched with the sliding groove (13), one side of the first mounting ring (3) departing from the second mounting ring (4) is detachably provided with a third mounting ring (5), the top surface of the third mounting ring (5) is horizontally provided with a fourth mounting ring (51), the bottom surface of the fourth mounting ring (51) is provided with a third filter screen (52), the third filter screen (52) is in a right circular cone shape with an upward opening, the first filter screen (31) is provided with a cleaning assembly for reducing sundries from adhering to the third filter screen (52), the base body (1) is provided with a driving assembly for driving the first mounting ring (3) to vertically move, and a limiting component used for limiting the position of the third mounting ring (5) is arranged on the bottom surface of the third mounting ring (5).

3. The axial flow fan for the roof is characterized in that the cleaning assembly comprises a wear-resistant block (521) attached to one side, close to the first filter screen (31), of the third filter screen (52), a cushion block (33) horizontally installed on one side, away from the second filter screen (41), of the first filter screen (31), a starting motor (34) horizontally installed on a bearing surface of the cushion block (33), and a cam (35) installed on an output shaft of the starting motor (34) and abutted against the surface of the wear-resistant block (521).

4. The axial flow fan for roof as stated in claim 2, wherein said driving assembly includes a driving motor (14) horizontally installed on the outer sidewall of said base body (1), a driving roller (141) installed on the output shaft of said driving motor (14), a fixed pulley (15) vertically installed on the top surface of said base body (1), a driving wire (142) installed on said driving roller (141) and passing around the fixed pulley (15) and then connected with the top surface of the first mounting ring (3), and a guiding member provided on said sliding groove (13) for guiding the first mounting ring (3) to make up-and-down movement.

5. The axial flow fan for roof as claimed in claim 4, wherein the guiding member comprises a guiding rod (131) vertically installed on the sliding groove (13) and passing through the sliding block (32), and a tension spring (36) sleeved on the guiding rod (131) and having one end connected with the top wall of the sliding groove (13) and the other end connected with the top surface of the first mounting ring (3).

6. The axial flow fan for roof according to claim 2, wherein the bearing surface of the first mounting ring (3) is provided with a limiting ring groove (37), the limiting assembly comprises a limiting ring (53) which is annularly arranged on the bottom surface of the third mounting ring (5) and is adapted to the limiting ring groove (37), and an arc edge (54) is provided on an edge of the limiting ring (53) which faces away from the third mounting ring (5).

7. The axial fan for roofs as claimed in claim 1, wherein a fixing ring (16) is horizontally mounted in the base body (1), the fixing ring (16) being located between the first mounting ring (3) and the second mounting ring (4), and a cushion pad (161) is attached to a side of the fixing ring (16) facing away from the second mounting ring (4).

8. Roof axial fan according to claim 1, characterized in that the second filter (41) has a smaller mesh than the first filter (31).