CN212407127U

CN212407127U - Volute molded line structure of centrifugal fan

Info

Publication number: CN212407127U
Application number: CN202020576807.0U
Authority: CN
Inventors: 万其龙
Original assignee: Zhangjiagang Jiyu Machinery Manufacturing Co ltd
Current assignee: Zhangjiagang Jiyu Machinery Manufacturing Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-01-26
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a centrifugal fan's spiral case molded lines structure, including the spiral case main part, the right side of spiral case main part is equipped with the spiral case cover, the fixed frame of fixed surface of spiral case main part is connected with, the inner chamber of fixed frame is equipped with the rotary rod, fixed frame and fixed connection have the rotation handle are run through at the top of rotary rod, one side fixedly connected with initiative awl tooth of rotation handle is kept away from to the rotary rod. The utility model discloses a spiral case main part, spiral case cover, fixed frame, fixed cover, set nut, removal screw rod, rotatory handle, rotary rod, initiative awl tooth, driven awl tooth, movable plate, spiral shell piece and threaded rod can make the device reach the function of being convenient for to install, and the spiral case molded lines structure of having solved centrifugal fan on the current market does not possess the function of the installation of being convenient for, and the spiral case internal form is various, is unfavorable for the trompil fixed, easily causes to connect smooth tooth to damage, causes the foundry goods to scrap, is unfavorable for the problem of user's installation and use.

Description

Volute molded line structure of centrifugal fan

Technical Field

The utility model relates to a centrifugal fan technical field specifically is a centrifugal fan's spiral case molded lines structure.

Background

The centrifugal fan is a driven fluid machine which increases the gas pressure and discharges gas by means of input mechanical energy, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

Centrifugal fan leads the wind energy through inside molded lines structure, has promoted the performance of fan, has reduced the energy consumption, and centrifugal fan's spiral case molded lines structure does not possess the function of the installation of being convenient for on the current market, and the shape is various in the spiral case, is unfavorable for the trompil fixed, easily causes to connect smooth tooth and damages, causes the foundry goods to scrap, is unfavorable for user's installation and use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a centrifugal fan's spiral case molded lines structure possesses the advantage of the installation of being convenient for, has solved the problem that centrifugal fan's spiral case molded lines structure does not possess the installation function of being convenient for on the current market.

In order to achieve the above object, the utility model provides a following technical scheme: a volute profile structure of a centrifugal fan comprises a volute main body, wherein a volute cover is arranged on the right side of the volute main body, a fixed frame is fixedly connected to the surface of the volute main body, a rotary rod is arranged in an inner cavity of the fixed frame, the top of the rotary rod penetrates through the fixed frame and is fixedly connected with a rotary handle, a driving bevel gear is fixedly connected to one side, away from the rotary handle, of the rotary rod, a driven bevel gear is meshed to the bottom of the driving bevel gear, a threaded rod is fixedly connected to the inner cavity of the driven bevel gear, bearings are movably connected to the two sides of the threaded rod, one side, away from the threaded rod, of each bearing is fixedly connected with the joint of the fixed frame, a screw block is in threaded connection with the surface of the threaded rod, a movable plate is fixedly connected to the top of the screw block, a movable screw rod is fixedly connected to the, the surface of the volute casing cover is fixedly connected with a fixed sleeve matched with the movable screw rod, the right side of the movable screw rod penetrates through the fixed sleeve and extends to the right side of the fixed sleeve, and the surface of the movable screw rod, which is positioned on the right side of the fixed sleeve, is in threaded connection with a positioning nut.

Preferably, the top fixedly connected with slider of movable plate, the spout that uses with the slider cooperation is seted up at the top of fixed frame inner chamber.

Preferably, the top fixedly connected with of fixed frame inner chamber is enclosed with the guard ring that the rotary rod cooperation was used, the material of using of guard ring is vulcanized rubber.

Preferably, the inner cavity of the volute main body is fixedly connected with a volute bottom ring, and the right side of the inner cavity of the volute main body is provided with a stepped volute tongue.

Preferably, the number of the positioning nuts is two, and the diameter of each positioning nut is larger than the diameter of the outer ring of the fixing sleeve.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a spiral case main part, spiral case cover, fixed frame, fixed cover, set nut, removal screw rod, rotatory handle, rotary rod, initiative awl tooth, driven awl tooth, movable plate, spiral shell piece and threaded rod can make the device reach the function of being convenient for to install, and the spiral case molded lines structure of having solved centrifugal fan on the current market does not possess the function of the installation of being convenient for, and the spiral case internal form is various, is unfavorable for the trompil fixed, easily causes to connect smooth tooth to damage, causes the foundry goods to scrap, is unfavorable for the problem of user's installation and use.

2. Through the use of the sliding block and the sliding groove, the phenomenon that the use is influenced by clamping stagnation of the moving plate during moving can be effectively avoided, and the moving smoothness of the moving plate during moving is improved;

by using the protective ring, the phenomenon that the use of the rotary rod is influenced by abnormal abrasion caused by friction between the rotary rod and the outer wall of the fixed frame when the rotary rod rotates can be effectively avoided, and the service life of the rotary rod is prolonged;

the stepped volute tongue is arranged, so that the device has a better using effect and lower using energy consumption, and is convenient for a user to operate and use;

through the establishment of two nuts, can make set nut's fixed effect better, promote the stability when removing the screw rod and fixing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is a sectional view of the fixing frame of the present invention;

fig. 4 is the schematic diagram of the internal structure of the volute main body of the present invention.

In the figure: 1. a volute body; 2. a volute housing; 3. a fixing frame; 4. fixing a sleeve; 5. positioning a nut; 6. moving the screw; 7. a chute; 8. a slider; 9. rotating the handle; 10. a guard ring; 11. rotating the rod; 12. driving bevel gears; 13. driven bevel gears; 14. moving the plate; 15. a screw block; 16. a threaded rod; 17. a bearing; 18. a volute bottom ring; 19. a step volute tongue.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a spiral case main part 1, spiral case cover 2, fixed frame 3, fixed cover 4, set nut 5, remove screw rod 6, spout 7, slider 8, rotatory 9, guard ring 10, rotary rod 11, initiative awl tooth 12, driven awl tooth 13, movable plate 14, spiral shell piece 15, threaded rod 16, bearing 17, spiral case foundation ring 18 and ladder spiral tongue 19 part are the general standard component or the part that technical staff in the field knows, its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-4, a volute type line structure of a centrifugal fan comprises a volute body 1, a volute bottom ring 18 is fixedly connected to an inner cavity of the volute body 1, a stepped volute tongue 19 is formed on the right side of the inner cavity of the volute body 1, the use effect of the device is better through the formation of the stepped volute tongue 19, the use energy consumption is lower, and the device is convenient for operation and use of a user, a volute casing cover 2 is arranged on the right side of the volute body 1, a fixed frame 3 is fixedly connected to the surface of the volute body 1, a rotating rod 11 is arranged in the inner cavity of the fixed frame 3, a rotating handle 9 is fixedly connected to the top of the rotating rod 11 through the fixed frame 3, a driving bevel gear 12 is fixedly connected to one side of the rotating rod 11 away from the rotating handle 9, a protective ring 10 matched with the rotating rod 11 is fixedly connected to the top of the inner cavity of the fixed frame, the phenomenon that the use of the rotating rod 11 is affected by abnormal abrasion caused by friction between the rotating rod 11 and the outer wall of the fixed frame 3 when the rotating rod rotates can be effectively avoided, the service life of the rotating rod 11 is prolonged, the bottom of the driving bevel gear 12 is meshed with the driven bevel gear 13, the inner cavity of the driven bevel gear 13 is fixedly connected with the threaded rod 16, two sides of the threaded rod 16 are movably connected with the bearings 17, one side, away from the threaded rod 16, of each bearing 17 is fixedly connected with the joint of the fixed frame 3, the surface of the threaded rod 16 is in threaded connection with the threaded block 15, the top of the threaded block 15 is fixedly connected with the movable plate 14, the top of the movable plate 14 is fixedly connected with the sliding block 8, the top of the inner cavity of the fixed frame 3 is provided with the sliding groove 7 matched with the sliding block 8 for use, through the use of the sliding block 8 and the sliding groove, the right side of removing screw 6 runs through fixed frame 3 and extends to the outside of fixed frame 3, the fixed surface of spiral case cover 2 is connected with fixed cover 4 that uses with the cooperation of removing screw 6, the right side of removing screw 6 runs through fixed cover 4 and extends to the right side department of fixed cover 4, the surface that removes screw 6 is located the right side department threaded connection of fixed cover 4 has set nut 5, set nut 5's quantity is two, set nut 5's diameter is greater than the outer lane diameter of fixed cover 4, set up through two nuts, can make set nut 5's fixed effect better, stability when having promoted the removal screw 6 and fixing.

When the spiral case is used, the spiral case main body 1 and the spiral case cover 2 are attached to each other by a user, the right side of the movable screw 6 penetrates through the inner cavity of the fixing sleeve 4, the two positioning nuts 5 are mutually fixed and locked by a user taking tool, the rotating handle 9 is rotated by the user taking tool after fixing is completed, the rotating rod 11 is driven to rotate by the rotation of the rotating handle 9, the driving bevel gear 12 is driven to rotate by the rotation of the rotating rod 11, the driven bevel gear 13 is driven to rotate by the rotation of the driving bevel gear 12, the threaded rod 16 is driven to rotate by the rotation of the driven bevel gear 13, the screw block 15 is driven to move by the rotation of the threaded rod 16, the movable plate 14 is driven to move by the movement of the screw block 15, the movable screw 6 is driven to move by the movement of the movable plate 14, and the positioning nuts 5 are pulled by the movement of, the pulling through set nut 5 makes its and fixed cover 4 between the atress of mutual extrusion, accomplish fixed between spiral case main part 1 and the spiral case cover 2, through the cooperation of above-mentioned structure, can make the device reach the function of being convenient for to install, the spiral case molded lines structure of having solved centrifugal fan on the current market does not possess the function of the installation of being convenient for, the shape is various in the spiral case, be unfavorable for the trompil fixed, easily cause to connect smooth tooth to damage, cause the foundry goods to scrap, be unfavorable for the problem of user's installation and use, and is suitable for being generalized to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a centrifugal fan's spiral case molded lines structure, includes spiral case main part (1), its characterized in that: the spiral case comprises a spiral case body (1), a spiral case cover (2) is arranged on the right side of the spiral case body (1), a fixed frame (3) is fixedly connected to the surface of the spiral case body (1), a rotary rod (11) is arranged in an inner cavity of the fixed frame (3), the top of the rotary rod (11) penetrates through the fixed frame (3) and is fixedly connected with a rotary handle (9), one side, far away from the rotary handle (9), of the rotary rod (11) is fixedly connected with a driving bevel gear (12), the bottom of the driving bevel gear (12) is meshed with a driven bevel gear (13), a threaded rod (16) is fixedly connected to the inner cavity of the driven bevel gear (13), bearings (17) are movably connected to two sides of the threaded rod (16), one side, far away from the threaded rod (16), of each bearing (17) is fixedly connected with the joint of the fixed frame (3), a spiral block (15) is connected to the surface of the threaded rod (, the right side fixedly connected with of movable plate (14) removes screw rod (6), the right side of removing screw rod (6) runs through fixed frame (3) and extends to the outside of fixed frame (3), the fixed surface of volute cover (2) is connected with fixed cover (4) that use with removal screw rod (6) cooperation, the right side of removing screw rod (6) runs through fixed cover (4) and extends to the right side department of fixed cover (4), the surface of removing screw rod (6) is located the right side department threaded connection of fixed cover (4) and has set nut (5).

2. The volute profile structure of a centrifugal fan according to claim 1, wherein: the top fixedly connected with slider (8) of movable plate (14), spout (7) that use with slider (8) cooperation are seted up at the top of fixed frame (3) inner chamber.

3. The volute profile structure of a centrifugal fan according to claim 1, wherein: the top fixedly connected with of fixed frame (3) inner chamber is with guard ring (10) that rotary rod (11) cooperation was used, the use material of guard ring (10) is vulcanized rubber.

4. The volute profile structure of a centrifugal fan according to claim 1, wherein: the inner cavity of the volute main body (1) is fixedly connected with a volute bottom ring (18), and the right side of the inner cavity of the volute main body (1) is provided with a stepped volute tongue (19).

5. The volute profile structure of a centrifugal fan according to claim 1, wherein: the number of the positioning nuts (5) is two, and the diameter of each positioning nut (5) is larger than the diameter of the outer ring of the corresponding fixing sleeve (4).