CN112293925A

CN112293925A - Multifunctional outdoor backpack

Info

Publication number: CN112293925A
Application number: CN202011252011.0A
Authority: CN
Inventors: 朱振磊; 朱月健
Original assignee: Wudi Leiwei Outdoor Products Co Ltd
Current assignee: Wudi Leiwei Outdoor Products Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-02
Also published as: WO2022099842A1

Abstract

The invention relates to the field of backpacks and discloses a multifunctional outdoor backpack which comprises a backpack body, wherein a supporting plate is arranged at the upper end of the backpack body, a groove is formed in the upper end of the backpack body, sliding blocks are arranged on two sides of the supporting plate, a sliding groove is formed in the inner side of the groove, a fixing groove is formed in one side of the supporting plate, a fixing pin is arranged on one side of the backpack body, a through hole is formed in one side of the backpack body, and a rain shielding plate is arranged at the upper end of the supporting plate. This multi-functional outdoor knapsack through being provided with the heat dissipation motor, and the user plays better ventilation effect when using, through being provided with backup pad and rain-proof board, the user meets overcast and rainy weather in the field, plays better rain-proof effect, prevents that the rainwater from drenching the user, through being provided with buffer spring, in the user's violent motion process, plays better buffering effect, reduces the user atress, improves the knapsack comfort level.

Description

Multifunctional outdoor backpack

Technical Field

The invention relates to the technical field of backpacks, in particular to a multifunctional outdoor backpack.

Background

The traditional backpack is used for loading articles and luggage, has various shapes and materials, gradually improves the functions of the backpack along with the improvement of the living standard of people, meets the personalized requirements of people from different sides, and gradually expands the styles of the traditional backpack to different occasions and different crowds.

But current multi-functional outdoor knapsack still has certain drawback when using, at first, the knapsack main part is in the use, does not hide the rain board, in sleet weather, is not convenient for use, secondly, the knapsack main part is in long-time use, the user is excessively tired, does not have heat abstractor's accessory plate, and finally, the user is carrying out violent motion in-process, the knapsack main part does not have better buffer, reduces the comfort level of knapsack, we propose a multi-functional outdoor knapsack for this.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the multifunctional outdoor backpack, the radiating motor is arranged, a better ventilation effect is achieved when a user uses the backpack, the supporting plate and the rain shielding plate are arranged, the user can meet rainy weather in the open air to achieve a better rain shielding effect, the user is prevented from being wetted by rainwater, the buffer spring is arranged, a better buffer effect is achieved in the severe movement process of the user, the stress of the user is reduced, and the comfort level of the backpack is improved.

(II) technical scheme

In order to realize the effect that the heat dissipation motor is arranged, when a user uses the electric fan, a better ventilation effect is achieved, and the supporting plate and the rain shielding plate are arranged, so that the user can achieve a better rain shielding effect when encountering rainy weather in the field, and can be prevented from being wetted by rainwater, the buffer spring is arranged, so that a better buffer effect is achieved in the violent movement process of the user, and the stress of the user is reduced, the electric fan is provided with the following technical scheme: a multifunctional outdoor backpack comprises a backpack body, wherein a supporting plate is arranged at the upper end of the backpack body, a groove is arranged at the upper end of the backpack body, sliding blocks are arranged at two sides of the supporting plate, a sliding groove is arranged at the inner side of the groove, a fixing groove is arranged at one side of the supporting plate, a fixing pin is arranged at one side of the backpack body, a through hole is arranged at one side of the backpack body, a rain shielding plate is arranged at the upper end of the supporting plate, an auxiliary plate is arranged at one side of the backpack body, a buffer groove is arranged at one side of the auxiliary plate, a connecting pile is arranged at one side of the backpack body, an auxiliary block is arranged at the upper end of the connecting pile, a buffer spring is arranged at the inner side of the auxiliary block, a starting button is arranged at one side of the backpack body, a storage bin is arranged, the fan is characterized in that a ventilation net is arranged on one side of the auxiliary plate, a heat dissipation motor is arranged inside the auxiliary plate, a rotating shaft is arranged on one side of the heat dissipation motor, and fan blades are arranged on the outer side of the rotating shaft.

Preferably, the recess has been inlayed to the inboard of knapsack main part, and the width of recess is less than the width of backup pad, be fixed connection between backup pad and the slider, the sliding tray has been inlayed to the inboard of recess, and the phase-match between sliding tray and the slider, the fixed slot has been inlayed to one side of backup pad, and fixed slot quantity be a plurality of groups and be parallel arrangement, one side swing joint of knapsack main part has the fixed pin, be fixed connection between fixed pin and the fixed column, and the fixed column is the cylinder structure, phase-match between fixed column and the fixed slot.

Preferably, the junction of backup pad and dash board is provided with the loose axle, and the backup pad passes through the loose axle with dash board and be connected for rotating through the loose axle, the loose axle is the cylinder structure, one side swing joint of dash board has the telescopic link, and the telescopic link is extending structure, the standing groove has been inlayed to one side of dash board, and the phase-match between standing groove and the telescopic link, the spread groove has been inlayed to one side of backup pad, and the diameter of spread groove is greater than the telescopic link diameter, the telescopic link is two sets of and is the symmetry with the quantity of spread groove and arranges.

Preferably, the backpack body is movably connected with the auxiliary plate, the cross-sectional area of the auxiliary plate is smaller than that of the backpack body, straps are fixedly connected to one side of the auxiliary plate and made of breathable materials, the straps are arranged in two groups and symmetrically, lugs are fixedly connected to one side of the auxiliary plate and made of plastic materials, the lugs are arranged in a plurality of groups and arranged in an array, and the lugs are of hemispherical structures.

Preferably, one side of the backpack main body is fixedly connected with connecting piles which are of a rectangular strip structure, the connecting piles are arranged in two groups and are arranged in parallel, the width of each connecting pile is smaller than that of the auxiliary plate, buffer grooves are embedded in one side of the auxiliary plate, the buffer grooves are arranged in two groups and are symmetrically arranged, and the buffer grooves are matched with the connecting piles.

Preferably, the two ends of the connecting pile are fixedly connected with auxiliary blocks, the auxiliary blocks are arranged symmetrically in a plurality of groups, the inner sides of the auxiliary blocks are fixedly connected with buffer springs which are of elastic structures, and the number of the buffer springs is one half of the number of the auxiliary blocks.

Preferably, one side swing joint of knapsack main part has the start button, and the start button is the cylinder structure, the inside of knapsack main part has inlayed and has stored the storehouse, and stores the storehouse and be the rectangle structure, the inboard fixedly connected with rechargeable battery who stores the storehouse, and be conductive connection between rechargeable battery and the heat dissipation motor.

Preferably, one side of accessory plate has inlayed the ventilation net, and the ventilation net is hollow out construction, the ventilation net quantity is four groups and the symmetry is arranged, one side fixedly connected with heat dissipation motor of ventilation net, one side swing joint of heat dissipation motor has the axis of rotation, and the axis of rotation is the cylinder structure, the cross-sectional area of axis of rotation is less than the cross-sectional area of heat dissipation motor, the outside fixedly connected with flabellum of axis of rotation, and flabellum quantity be a plurality of groups and be the annular and arrange, the flabellum is made for non-metallic material.

(III) advantageous effects

Compared with the prior art, the invention provides a multifunctional outdoor backpack, which has the following beneficial effects:

1. this multi-functional outdoor knapsack, through being provided with the backup pad, the recess, the slider, the sliding tray, the fixed slot, the fixed pin, the through-hole, dash board, in knapsack main part use, the user pulls out the backup pad along the recess, make the slider remove along the inboard surface of sliding tray, until removing to suitable position, drive the fixed column with the fixed pin and remove along the through-hole, paste to fixed slot one side surface until the fixed column, fix the backup pad, after that with dash board under the swing joint of axis of rotation, downwards rotate, make the telescopic link break away from the standing groove, make the telescopic link tensile, place after the extension and fix in the spread groove inboard, thereby fix dash board, play the rain effect that hides that adds, prevent that the user from drenching with rain, improve the multifunctionality of knapsack main part.

2. This multi-functional outdoor knapsack, through being provided with the accessory plate, the connecting pile, the auxiliary block, buffer spring, the dashpot, in knapsack main part use, the user carries the braces back of the body to the shoulder neck, in the removal process, because knapsack main part self gravity, under the connecting pile is as the supporting role, the auxiliary block is as under the linkage, connecting pile lower extreme buffer spring slowly compresses, the buffer spring of connecting pile upper end is slowly stretched, it is until the dashpot motion trail reaches the terminal point, carry out the back and forth motion, play better buffering effect, reduce user's atress, the improvement practicality.

3. This multi-functional outdoor knapsack through being provided with start button, rechargeable battery, the net ventilates, the heat dissipation motor, the axis of rotation, the flabellum, in knapsack main part use, the user passes through start button for rechargeable battery is for the motor power supply that dispels the heat, the heat dissipation motor drives the axis of rotation and rotates, the axis of rotation drives the flabellum and rotates, make the air of accessory plate one side will flow through the net that ventilates, make the in-process of user's knapsack, play the ventilation effect who adds, improve the comfort level.

Drawings

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

FIG. 2 is a schematic view of a portion of a structural support plate according to the present invention;

FIG. 3 is a partial side cross-sectional view of the structural support plate of the present invention;

FIG. 4 is a partial side cross-sectional view of the structure of the present invention;

FIG. 5 is an enlarged view of A in FIG. 4 according to the present invention;

FIG. 6 is an enlarged view of B in FIG. 4 according to the present invention.

In the figure: 1. a backpack body; 2. a support plate; 3. a groove; 4. a slider; 5. a sliding groove; 6. fixing grooves; 7. a fixing pin; 8. fixing a column; 9. a through hole; 10. a flashing; 11. a telescopic rod; 12. a placement groove; 13. connecting grooves; 14. a movable shaft; 15. an auxiliary plate; 16. a harness; 17. a bump; 18. connecting piles; 19. an auxiliary block; 20. a buffer spring; 21. a buffer tank; 22. a start button; 23. a storage bin; 24. a rechargeable battery; 25. a ventilation net; 26. a heat dissipation motor; 27. a rotating shaft; 28. a fan blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a multifunctional outdoor backpack includes a backpack body 1, a support plate 2 is disposed at an upper end of the backpack body 1, a groove 3 is disposed at an upper end of the backpack body 1, sliders 4 are disposed at both sides of the support plate 2, a sliding groove 5 is disposed at an inner side of the groove 3, a fixing groove 6 is disposed at one side of the support plate 2, a fixing pin 7 is disposed at one side of the backpack body 1, a through hole 9 is disposed at one side of the backpack body 1, a flashing board 10 is disposed at an upper end of the support plate 2, an auxiliary board 15 is disposed at one side of the backpack body 1, a buffer groove 21 is disposed at one side of the auxiliary board 15, a connection pile 18 is disposed at one side of the backpack body 1, an auxiliary block 19 is disposed at an upper end of the connection pile 18, a buffer spring 20 is disposed at an inner side of the auxiliary block 19, the rechargeable battery 24 is arranged on the inner side of the storage bin 23, the ventilation net 25 is arranged on one side of the auxiliary board 15, the heat dissipation motor 26 is arranged inside the auxiliary board 15, the rotating shaft 27 is arranged on one side of the heat dissipation motor 26, and the fan blades 28 are arranged on the outer side of the rotating shaft 27, so that the backpack main body 1 can be used conveniently.

Recess 3 has been inlayed to knapsack main part 1's inboard, and recess 3's width is less than backup pad 2's width, be fixed connection between backup pad 2 and the slider 4, sliding tray 5 has been inlayed to recess 3's inboard, and the phase-match between sliding tray 5 and the slider 4, fixed slot 6 has been inlayed to one side of backup pad 2, and fixed slot 6 quantity is a plurality of groups and is parallel arrangement, one side swing joint of knapsack main part 1 has fixed pin 7, be fixed connection between fixed pin 7 and the fixed column 8, and fixed column 8 is the cylinder structure, phase-match between fixed column 8 and the fixed slot 6, be favorable to being connected of fixed column 8 and fixed slot 6.

The junction of backup pad 2 and dash board 10 is provided with loose axle 14, and backup pad 2 passes through loose axle 14 with dash board 10 and is connected for rotating, loose axle 14 is the cylinder structure, one side swing joint of dash board 10 has telescopic link 11, and telescopic link 11 is extending structure, standing groove 12 has been inlayed to one side of dash board 10, and phase-match between standing groove 12 and the telescopic link 11, spread groove 13 has been inlayed to one side of backup pad 2, and the diameter of spread groove 13 is greater than the 11 diameters of telescopic link, telescopic link 11 is two sets of and is the symmetry with the quantity of spread groove 13 and arranges, be favorable to dash board 10's use.

Be swing joint between knapsack main part 1 and the accessory plate 15, and the cross-sectional area of accessory plate 15 is less than the cross-sectional area of knapsack main part 1, one side fixedly connected with braces 16 of accessory plate 15, and braces 16 are ventilative material and make, braces 16 quantity is two sets of and is the symmetry and arranges, one side fixedly connected with lug 17 of accessory plate 15, and lug 17 is made for the plastic material, lug 17 quantity is a plurality of groups and is the array and arranges, and lug 17 is hemispherical structure, be favorable to reciprocating of accessory plate 15.

Stake 18 is connected to one side fixedly connected with of knapsack main part 1, and connects stake 18 to be rectangle strip structure, connects 18 quantity of stake to be two sets of and be parallel arrangement, connects the width that the width of stake 18 is less than accessory plate 15, and buffer slot 21 has been inlayed to one side of accessory plate 15, and buffer slot 21 quantity be two sets of and be the symmetry and arrange, buffer slot 21 and connect between the stake 18 phase-match, be favorable to the setting of buffer slot 21.

The both ends fixedly connected with auxiliary block 19 of connecting pile 18, and auxiliary block 19 quantity be a plurality of groups and be the symmetry and arrange, and auxiliary block 19's inboard fixedly connected with buffer spring 20, and buffer spring 20 is elastic structure, and buffer spring 20's quantity is the half of auxiliary block 19 quantity, is favorable to buffer spring 20's use.

One side swing joint of knapsack main part 1 has start button 22, and start button 22 is the cylinder structure, and knapsack main part 1's inside has inlayed and has stored storehouse 23, and stores storehouse 23 and be the rectangle structure, stores the inboard fixedly connected with rechargeable battery 24 of storehouse 23, and is electrically conductive between rechargeable battery 24 and the heat dissipation motor 26 to be connected, is favorable to the power supply use of heat dissipation motor 26.

One side of accessory plate 15 has inlayed ventilation net 25, and ventilation net 25 is hollow out construction, ventilation net 25 quantity is four groups and the symmetry is arranged, one side fixedly connected with heat dissipation motor 26 of ventilation net 25, heat dissipation motor 26's model is XNDJ-0001, one side swing joint of heat dissipation motor 26 has axis of rotation 27, and axis of rotation 27 is the cylinder structure, the cross-sectional area of axis of rotation 27 is less than heat dissipation motor 26's cross-sectional area, axis of rotation 27's outside fixedly connected with flabellum 28, and flabellum 28 quantity is a plurality of groups and is the annular and arranges, flabellum 28 is made for non-metallic material, be favorable to heat dissipation motor 26's.

In operation, the user carries the straps 16 to the neck of the shoulder, in the moving process, due to the self gravity of the backpack body 1, under the supporting action of the connecting pile 18 and the connecting action of the auxiliary block 19, the buffer spring 20 at the lower end of the connecting pile 18 is slowly compressed, the buffer spring 20 at the upper end of the connecting pile 18 is slowly stretched until the motion track of the buffer groove 21 reaches the end point, the backpack carries out the reciprocating motion, a good buffer effect is achieved, the stress of the user is reduced, the user supplies power to the heat dissipation motor 26 through the starting button 22, the heat dissipation motor 26 drives the rotating shaft 27 to rotate, the rotating shaft 27 drives the fan blades 28 to rotate, the air at one side of the auxiliary plate 15 flows through the ventilation net 25, the added ventilation effect is achieved in the process of the user backpack, the comfort level is improved, the user pulls the support plate 2 out along the groove 3, make slider 4 remove along 5 inboard surfaces of sliding tray, until removing to suitable position, drive fixed column 8 with fixed pin 7 and remove along through-hole 9, paste to fixed slot 6 one side surfaces until fixed column 8, fix backup pad 2, with dash board 10 under the swing joint of axis of rotation 27 after that, rotate downwards, make telescopic link 11 break away from standing groove 12, make telescopic link 11 tensile, place after the extension and fix in spread groove 13 inboard, thereby fix dash board 10, play the better rain effect of hiding, prevent that the user from drenching with rain, improve knapsack main part 1's multifunctionality.

To sum up, in the multifunctional outdoor backpack, the user pulls out the support plate 2 along the groove 3, so that the slider 4 moves along the outer surface of the inner side of the sliding groove 5 until the slider moves to a proper position, the fixing pin 7 drives the fixing column 8 to move along the through hole 9 until the fixing column 8 is attached to the outer surface of one side of the fixing groove 6, the support plate 2 is fixed, then the rain shielding plate 10 is rotated downwards under the movable connection of the rotating shaft 27, so that the telescopic rod 11 is separated from the placing groove 12, the telescopic rod 11 is stretched, and is placed inside the connecting groove 13 to be fixed after being lengthened, so that the rain shielding plate 10 is fixed, a good rain shielding effect is achieved, the user is prevented from getting wet, the versatility of the backpack body 1 is improved, the user carries the straps 16 to the shoulder neck, in the moving process, due to the self-gravity of the backpack body 1, under the supporting action, under the effect as the connection, connect 18 lower extreme buffer spring 20 of stake slowly compress, the buffer spring 20 of the upper end of stake 18 slowly stretches, it is until dashpot 21 movement track reaches the terminal point, round trip movement carries out, play better buffering effect, reduce user's atress, improve the practicality, through start button 22, make rechargeable battery 24 for the power supply of heat dissipation motor 26, heat dissipation motor 26 drives axis of rotation 27 and rotates, axis of rotation 27 drives flabellum 28 and rotates, make the air of accessory plate 15 one side will flow through ventilation net 25, make the in-process of user's knapsack, play the ventilation effect who adds, and the comfort level is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 multi-functional outdoor knapsack, includes knapsack main part (1), its characterized in that: the backpack comprises a backpack body (1), wherein a supporting plate (2) is arranged at the upper end of the backpack body (1), a groove (3) is formed in the upper end of the backpack body (1), sliding blocks (4) are arranged on two sides of the supporting plate (2), a sliding groove (5) is formed in the inner side of the groove (3), a fixing groove (6) is formed in one side of the supporting plate (2), a fixing pin (7) is arranged on one side of the backpack body (1), a through hole (9) is formed in one side of the backpack body (1), a rain shielding plate (10) is arranged at the upper end of the supporting plate (2), an auxiliary plate (15) is arranged on one side of the backpack body (1), a buffer groove (21) is formed in one side of the auxiliary plate (15), a connecting pile (18) is arranged on one side of the backpack body (1), an auxiliary block (19) is arranged at the upper end of the connecting pile (, one side of knapsack main part (1) is provided with start button (22), the inside of knapsack main part (1) is provided with stores storehouse (23), the inboard of storing storehouse (23) is provided with rechargeable battery (24), one side of accessory plate (15) is provided with ventilation net (25), the inside of accessory plate (15) is provided with heat dissipation motor (26), one side of heat dissipation motor (26) is provided with axis of rotation (27), the outside of axis of rotation (27) is provided with flabellum (28).

2. The multi-functional outdoor backpack of claim 1, wherein: recess (3) have been inlayed to the inboard of knapsack main part (1), and the width of recess (3) is less than the width of backup pad (2), be fixed connection between backup pad (2) and slider (4), sliding tray (5) have been inlayed to the inboard of recess (3), and phase-match between sliding tray (5) and slider (4), fixed slot (6) have been inlayed to one side of backup pad (2), and fixed slot (6) quantity be a plurality of groups and be parallel arrangement, one side swing joint of knapsack main part (1) has fixed pin (7), be fixed connection between fixed pin (7) and fixed column (8), and fixed column (8) are the cylinder structure, phase-match between fixed column (8) and fixed slot (6).

3. The multi-functional outdoor backpack of claim 1, wherein: the utility model discloses a rain shield, including backup pad (2), activity axle (14), telescopic link (11), movable shaft (14), telescopic link (11), and telescopic link (11) are flexible structure, standing groove (12) have been inlayed to one side of rain shield (10), and the phase-match between standing groove (12) and telescopic link (11), spread groove (13) have been inlayed to one side of backup pad (2) and the junction of rain shield (10) is provided with movable shaft (14), and backup pad (2) and rain shield (10) are connected for rotating through activity axle (14), activity axle (14) are the cylinder structure, one side swing joint of rain shield (10) has telescopic link (11), and telescopic link (11) diameter is greater than telescopic link (11) diameter, telescopic link (11) are two sets of and are the symmetry with the quantity of spread groove (13) and.

4. The multi-functional outdoor backpack of claim 1, wherein: the backpack comprises a backpack body (1), an auxiliary plate (15) and straps (16), wherein the backpack body (1) is movably connected with the auxiliary plate (15), the cross-sectional area of the auxiliary plate (15) is smaller than that of the backpack body (1), the straps (16) are fixedly connected to one side of the auxiliary plate (15) and made of breathable materials, the straps (16) are arranged in two groups and are symmetrically arranged, lugs (17) are fixedly connected to one side of the auxiliary plate (15), the lugs (17) are made of plastic materials, the lugs (17) are arranged in multiple groups and are arranged in an array, and the lugs (17) are of hemispherical structures.

5. The multi-functional outdoor backpack of claim 1, wherein: the backpack comprises a backpack body (1) and is characterized in that connecting piles (18) are fixedly connected to one side of the backpack body (1), the connecting piles (18) are of a rectangular strip structure, the number of the connecting piles (18) is two groups and are arranged in parallel, the width of each connecting pile (18) is smaller than that of an auxiliary plate (15), buffer grooves (21) are embedded in one side of the auxiliary plate (15), the number of the buffer grooves (21) is two groups and are arranged symmetrically, and the buffer grooves (21) are matched with the connecting piles (18).

6. The multi-functional outdoor backpack of claim 1, wherein: the utility model discloses a connecting pile, including connecting pile (18), both ends fixedly connected with auxiliary block (19), and auxiliary block (19) quantity be a plurality of groups and be the symmetry and arrange, the inboard fixedly connected with buffer spring (20) of auxiliary block (19), and buffer spring (20) are elastic construction, the quantity of buffer spring (20) is the half of auxiliary block (19) quantity.

7. The multi-functional outdoor backpack of claim 1, wherein: one side swing joint of knapsack main part (1) has start button (22), and start button (22) are the cylinder structure, the inside of knapsack main part (1) is inlayed and is stored storehouse (23), and stores storehouse (23) and be the rectangle structure, the inboard fixedly connected with rechargeable battery (24) of storing storehouse (23), and be conductive connection between rechargeable battery (24) and heat dissipation motor (26).

8. The multi-functional outdoor backpack of claim 1, wherein: one side of accessory plate (15) has inlayed ventilation net (25), and ventilation net (25) are hollow out construction, ventilation net (25) quantity is four groups and the symmetry is arranged, one side fixedly connected with heat dissipation motor (26) of ventilation net (25), one side swing joint of heat dissipation motor (26) has axis of rotation (27), and axis of rotation (27) are the cylinder structure, the cross-sectional area of axis of rotation (27) is less than the cross-sectional area of heat dissipation motor (26), the outside fixedly connected with flabellum (28) of axis of rotation (27), and flabellum (28) quantity be a plurality of groups and be the annular and arrange, flabellum (28) are made for non-metallic material.