CN111213972A

CN111213972A - Sunshade umbrella

Info

Publication number: CN111213972A
Application number: CN202010179325.6A
Authority: CN
Inventors: 杨雪; 马健雄; 付丽霞; 陈显宁; 杨振浩; 许爽; 王浩宇
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-06-02

Abstract

The invention relates to a sunshade umbrella, and belongs to the technical field of machinery equipment. The umbrella comprises an umbrella surface, a transmission bevel gear, an umbrella rod and a base; wherein, umbrella pole one end installation base, umbrella pole other end installation umbrella face, the umbrella face passes through transmission bevel gear and drives folding and extend. The invention constructs a platform for the sunshade to contract and expand through a specific mechanical transmission mode, so that the sunshade can be effectively stored, transported and used; simultaneously, the mechanical structure can realize the rotation of the umbrella cover and can be combined with a solar power generation sunshade to realize the light tracing of the sunshade cover.

Description

Sunshade umbrella

Technical Field

The invention relates to a sunshade umbrella, and belongs to the technical field of machinery equipment.

Background

At present, common outdoor fixed sunshade umbrellas on the market have large volume, the umbrella can be contracted and unfolded generally by manpower, and can not be automatically folded, contracted and unfolded, and the transportation is inconvenient; therefore, it is necessary to provide a mechanical design of outdoor sunshade umbrella which can be controlled by motor to fold and unfold.

Disclosure of Invention

The invention provides a sunshade umbrella, which can be effectively used for realizing the contraction and expansion of the sunshade umbrella through a given mechanical structure; meanwhile, the mechanical structure can realize the rotation of the umbrella cover, and further can be combined with a solar power generation sunshade to realize the light tracing of the umbrella cover of the sunshade.

The technical scheme of the invention is as follows: a sunshade comprises an umbrella cover 1, a transmission bevel gear 2, an umbrella rod 3 and a base 4; wherein, 3 one ends of umbrella

pole installation bases

4, 3 other ends of umbrella pole installation umbrella face 1, umbrella face 1 drives through transmission bevel gear 2 and folds and extend.

The umbrella surface 1 comprises a plurality of fan-shaped umbrella plates 1-1, a plurality of driven umbrella frames 1-2, a driving umbrella frame 1-3, a motor I1-4 and a sliding block 1-5; one of the driven umbrella stands 1-2 is a fixed driven umbrella stand, and the rest are movable driven umbrella stands; the umbrella comprises a plurality of fan-shaped umbrella plates 1-1, a round umbrella cover is formed by every two fan-shaped umbrella plates 1-1 which are hinged with each other, two ends of other fan-shaped umbrella plates 1-1 except the head group and the tail group are respectively hinged with a movable driven umbrella stand 1-2, one end of the head group is hinged with a driving umbrella stand 1-3, the other end of the head group is hinged with the movable driven umbrella stand 1-2, one end of the tail group is hinged with the movable driven umbrella stand 1-2, and the other end of the tail group is hinged with a fixed driven umbrella stand 1-2; the upper ends of the movable driven umbrella stands 1-2 are hooked and buckled at the grooves at the top ends of the upper supporting rods 3-3 in the umbrella rods 3, threaded holes are formed in cylinders at the lower ends of the movable driven umbrella stands 1-2 and are connected with threaded columns of sliding blocks 1-5, and the sliding blocks 1-5 are arranged in sliding rails of sliding block shaft sleeves 3-4 in the umbrella rods 3; the fixed driven umbrella stand 1-2 is different from the movable driven umbrella stand 1-2 only in that: the upper end of the hook shape of the fixed driven umbrella stand 1-2 is welded with the groove at the top end of the upper supporting rod 3-3, and the slide block 1-5 connected with the fixed driven umbrella stand 1-2 is welded with the slide rail of the slide block shaft sleeve 3-4 in the umbrella rod 3; the upper tail end of the driving umbrella stand 1-3 is in a hook shape and is hung and buckled at a groove at the top end of the upper supporting rod 3-3, a motor I1-4 is fixedly installed in a cylinder at the lower tail end of the driving umbrella stand 1-3 through screws, and a transmission shaft of the motor I1-4 is sleeved in a bearing I2-4 in the transmission bevel gear 2.

The transmission bevel gear 2 comprises a small bevel gear 2-1, a large bevel gear 2-2, a support frame 2-3, a bearing I2-4 and a support frame bearing 2-5; the outer ring of the bearing I2-4 is sleeved in the bearing hole of the small bevel gear 2-1, the transmission shaft of the motor I1-4 in the umbrella cover 1 is arranged in the inner ring of the bearing I2-4, and the small bevel gear 2-1 is driven to rotate through the motor I1-4; a large bevel gear 2-2 sleeved at the lower part of the upper supporting rod 3-3 is meshed with a small bevel gear 2-1; the inner ring of the support frame bearing 2-5 is sleeved on the upper support rod 3-3 and is positioned between the large bevel gear 2-2 and the top end of the upper support rod 3-3; one end of a horizontal hole of the support frame 2-3 is sleeved on an outer ring of a support frame bearing 2-5, and one end of a vertical hole of the support frame 2-3 is sleeved on the outer surface of a cylinder at the tail end of the active umbrella frame 1-3.

The umbrella rod 3 comprises a telescopic support rod 3-1, a motor II 3-2, an upper support rod 3-3, a sliding block shaft sleeve 3-4 and an umbrella rod rotating shaft 3-5; the sliding block shaft sleeve 3-4 is sleeved at the lower part of the upper supporting rod 3-3; the umbrella rod rotating shaft 3-5 is in interference fit with the end hole of the upper support rod 3-3 and passes through the upper end hole of the telescopic support rod 3-1; the transmission shaft of the motor II 3-2 is connected with the umbrella rod rotating shaft 3-5 through a coupler, and the motor II 3-2 works to drive the umbrella rod rotating shaft 3-5 to rotate, so that the upper supporting rod 3-3 on the umbrella rod rotating shaft 3-5 rotates.

The base 4 comprises an umbrella case 4-1, a base case 4-2, a supporting seat 4-3, a rotating base 4-4, a motor III 4-5, a motor IV 4-6, a bearing II 4-7, a rotating main shaft 4-8, a shaft supporting seat 4-9, a bolt 4-10, a base bearing 4-11, a driving gear 4-12 and a driven gear 4-13; the base box 4-2 is arranged on a bottom plate of the umbrella box 4-1 through screws, the supporting seat 4-3 is fixedly arranged on the bottom plate of the base box 4-2 through screws, the motor IV 4-6 is arranged on the bottom plate of the base box 4-2 through screws, an output shaft of the motor IV 4-6 is matched with a hub of a driving gear 4-12 through a key, the driving gear 4-12 is meshed with a driven gear 4-13 to transmit power, the hub of the driven gear 4-13 is matched with a rotating shaft of the rotating base 4-4 through the key, meanwhile, the rotating shaft of the rotating base 4-4 is in interference fit with an inner ring of a bearing II 4-7 sleeved in a bearing hole of the supporting seat 4-3, and the two shaft bases 4-9 are respectively and symmetrically fixed on the rotating base 4-4 through bolts 4-10, the outer ring of the bearing 4-11 is sleeved in a bearing hole of the shaft support 4-9, the rotating main shaft 4-8 penetrates through the inner ring hole of the bearing 4-11 and a bottom assembly hole of a telescopic supporting rod 3-1 in the umbrella rod 3, the rotating main shaft 4-8 is in interference fit with the bottom assembly hole of the telescopic supporting rod 3-1, and the rotating main shaft 4-8 is connected with a motor III 4-5 shaft through a coupler; the motor III 4-5 works to drive the rotating main shaft 4-8 to rotate, so that the rotating main shaft 4-8 is rotated by the telescopic supporting rod 3-1 matched with the rotating main shaft.

The invention has the beneficial effects that: the invention constructs a platform for the sunshade to contract and expand through a specific mechanical transmission mode, so that the sunshade can be effectively stored, transported and used; simultaneously, the mechanical structure can realize the rotation of the umbrella cover and can be combined with a solar power generation sunshade to realize the light tracing of the sunshade cover.

Drawings

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

FIG. 2 is a schematic view of the present invention with a set of fan-shaped umbrella plates removed;

FIG. 3 is a schematic view of a portion of the structure of the present invention;

FIG. 4 is a schematic view of the umbrella frame and umbrella pole mounting structure of the present invention;

FIG. 5 is a schematic view of the internal structure of the umbrella case of the present invention;

FIG. 6 is a schematic view of the construction of the umbrella plate of the present invention;

FIG. 7 is a schematic view of the structure of the canopy of the present invention in a collapsed configuration;

FIG. 8 is a schematic structural view of the stand of the present invention;

the reference numbers in the figures: 1: umbrella face, 2: drive bevel gear, 3: umbrella pole, 4: base, 1-1: a fan-shaped umbrella plate 1-2: driven umbrella stand, 1-3: active umbrella stand, 1-4: motor I, 1-5: slider, 2-1: bevel pinion, 2-2: big bevel gear, 2-3: support frame, 2-4: bearing I, 2-5: support frame bearing, 3-1: telescopic supporting rod, 3-2: motor II, 3-3: upper support rod, 3-4: a slide block shaft sleeve and 3-5: umbrella pole rotation axis, 4-1: umbrella box, 4-2: base box, 4-3: supporting seat, 4-4: rotating base, 4-5: motor III, 4-6: motor IV, 4-7: bearing II, 4-8: rotating main shaft, 4-9: shaft support, 4-10: bolt, 4-11: base bearing, 4-12: driving gear, 4-13: a driven gear.

Detailed Description

Example 1: as shown in fig. 1-8, a sunshade comprises a sunshade surface 1, a transmission bevel gear 2, a sunshade rod 3 and a base 4; wherein, 3 one ends of umbrella

pole installation bases

Furthermore, the umbrella cover 1 can be arranged to comprise a plurality of fan-shaped umbrella plates 1-1, a plurality of driven umbrella frames 1-2, a driving umbrella frame 1-3, a motor I1-4 and a sliding block 1-5; one of the driven umbrella stands 1-2 is a fixed driven umbrella stand, and the rest are movable driven umbrella stands; the plurality of fan-shaped umbrella plates 1-1 form a circular umbrella surface (as seen from figure 1, in the whole structural design, 8 fan-shaped umbrella plates 1-1 and 4 driven umbrella stands 1-2 exist), every two fan-shaped umbrella plates 1-1 which are hinged with each other form a group, two ends of other fan-shaped umbrella plates 1-1 groups except the head group and the tail group are respectively hinged with the movable driven umbrella stands 1-2 through hinges, one end of the head group is hinged with the driving umbrella stand 1-3, the other end of the head group is hinged with the movable driven umbrella stand 1-2, one end of the tail group is hinged with the movable driven umbrella stands 1-2, and the other end of the tail group is hinged with the fixed driven umbrella stands 1-2; the upper ends of the movable driven umbrella stands 1-2 are hooked and buckled at the grooves at the top ends of the upper supporting rods 3-3 in the umbrella rods 3, threaded holes are formed in cylinders at the lower ends of the movable driven umbrella stands 1-2 and are connected with threaded columns of sliding blocks 1-5, and the sliding blocks 1-5 are arranged in sliding rails of sliding block shaft sleeves 3-4 in the umbrella rods 3; the fixed driven umbrella stand 1-2 is different from the movable driven umbrella stand 1-2 only in that: the upper end of the hook shape of the fixed driven umbrella stand 1-2 is welded with the groove at the top end of the upper supporting rod 3-3, and the slide block 1-5 connected with the fixed driven umbrella stand 1-2 is welded with the slide rail of the slide block shaft sleeve 3-4 in the umbrella rod 3; the upper tail end of the driving umbrella stand 1-3 is in a hook shape and is hung and buckled at a groove at the top end of the upper supporting rod 3-3, a motor I1-4 is fixedly installed in a cylinder at the lower tail end of the driving umbrella stand 1-3 through screws, and a transmission shaft of the motor I1-4 is sleeved in a bearing I2-4 in the transmission bevel gear 2.

Furthermore, the transmission bevel gear 2 can be arranged to comprise a small bevel gear 2-1, a large bevel gear 2-2, a support frame 2-3, a bearing I2-4 and a support frame bearing 2-5; the outer ring of the bearing I2-4 is sleeved in the bearing hole of the small bevel gear 2-1, the transmission shaft of the motor I1-4 in the umbrella cover 1 is arranged in the inner ring of the bearing I2-4, and the small bevel gear 2-1 is driven to rotate through the motor I1-4; a large bevel gear 2-2 sleeved at the lower part of the upper supporting rod 3-3 is meshed with a small bevel gear 2-1; the inner ring of the support frame bearing 2-5 is sleeved on the upper support rod 3-3 and is positioned between the large bevel gear 2-2 and the top end of the upper support rod 3-3; one end of a horizontal hole of the support frame 2-3 is sleeved on an outer ring of a support frame bearing 2-5, and one end of a vertical hole of the support frame 2-3 is sleeved on the outer surface of a cylinder at the tail end of the active umbrella frame 1-3.

Furthermore, the umbrella rod 3 can be arranged to comprise a telescopic support rod 3-1, a motor II 3-2, an upper support rod 3-3, a sliding block shaft sleeve 3-4 and an umbrella rod rotating shaft 3-5; the sliding block shaft sleeve 3-4 is sleeved at the lower part of the upper supporting rod 3-3; the umbrella rod rotating shaft 3-5 is in interference fit with the end hole of the upper support rod 3-3 and passes through the upper end hole of the telescopic support rod 3-1; the transmission shaft of the motor II 3-2 is connected with the umbrella rod rotating shaft 3-5 through a coupler, and the motor II 3-2 works to drive the umbrella rod rotating shaft 3-5 to rotate, so that the upper supporting rod 3-3 on the umbrella rod rotating shaft 3-5 rotates.

Furthermore, the base 4 can be arranged to comprise an umbrella case 4-1, a base case 4-2, a supporting seat 4-3, a rotating base 4-4, a motor III 4-5, a motor IV 4-6, a bearing II 4-7, a rotating main shaft 4-8, a shaft supporting seat 4-9, a bolt 4-10, a base bearing 4-11, a driving gear 4-12 and a driven gear 4-13; the base box 4-2 is arranged on a bottom plate of the umbrella box 4-1 through screws, the supporting seat 4-3 is fixedly arranged on the bottom plate of the base box 4-2 through screws, the motor IV 4-6 is arranged on the bottom plate of the base box 4-2 through screws, an output shaft of the motor IV 4-6 is matched with a hub of a driving gear 4-12 through a key, the driving gear 4-12 is meshed with a driven gear 4-13 to transmit power, the hub of the driven gear 4-13 is matched with a rotating shaft of the rotating base 4-4 through the key, meanwhile, the rotating shaft of the rotating base 4-4 is in interference fit with an inner ring of a bearing II 4-7 sleeved in a bearing hole of the supporting seat 4-3, and the two shaft bases 4-9 are respectively and symmetrically fixed on the rotating base 4-4 through bolts 4-10, the outer ring of the bearing 4-11 is sleeved in a bearing hole of the shaft support 4-9, the rotating main shaft 4-8 penetrates through the inner ring hole of the bearing 4-11 and a bottom assembly hole of a telescopic supporting rod 3-1 in the umbrella rod 3, the rotating main shaft 4-8 is in interference fit with the bottom assembly hole of the telescopic supporting rod 3-1, and the rotating main shaft 4-8 is connected with a motor III 4-5 shaft through a coupling; the motor III 4-5 works to drive the rotating main shaft 4-8 to rotate, so that the rotating main shaft 4-8 is rotated by the telescopic supporting rod 3-1 matched with the rotating main shaft.

The working principle of the invention is as follows:

when the umbrella cover of the sunshade needs to be folded, the output shaft of the motor I1-4 is in interference fit with the inner ring hole of the bearing I2-4 to drive the small bevel gear 2-1 sleeved on the outer ring of the bearing I2-4 to work, the small bevel gear 2-1 is meshed with the large bevel gear 2-2 sleeved on the upper supporting rod 3-3 to transmit power, so that the small bevel gear 2-1 rotates around the large bevel gear 2-2, the driving umbrella stand 1-3 fixedly connected with the motor I1-4 rotates around the upper supporting rod 3-3, the movable driven umbrella stand 1-2 rotates along with the small bevel gear, the umbrella plates 1-1 are driven to sequentially contract and fold as shown in figure 7, and finally the whole contraction of the umbrella cover 1 is realized. When the umbrella surface 1 is completely contracted, the motor II 3-2 starts to work to drive the umbrella rod rotating shaft 3-5 connected with the transmission shaft of the umbrella rod rotating shaft through the coupler to rotate, so that the upper supporting rod 3-3 matched with the umbrella rod rotating shaft 3-5 is driven to rotate, and the telescopic supporting rod 3-1 is further contracted. After the upper supporting rod 3-3 is rotated and the telescopic supporting rod 3-1 is completely contracted, the motor III 4-5 starts to work to drive the rotating main shaft 4-8 connected with the transmission shaft thereof through the coupler to rotate, so as to drive the telescopic supporting rod 3-1 matched with the rotating main shaft 4-8 to rotate until the whole umbrella body is arranged in the umbrella box 4-1. So far, the whole sunshade umbrella is folded. The umbrella body is unfolded in the opposite process of the contraction process. Foretell process, the mechanical structure that can cooperate this application through the drive of motor realizes contracting and expansion, through the contraction state, is convenient for accomodate, transport, through expanding convenient to use.

The rotary motion that the mechanical structure of this application carried on can cooperate solar energy power generation sun shade (promptly fan-shaped umbrella board 1-1 upper berth has the solar energy power generation film), further is used for realizing sun shade umbrella face chasing after light: the solar power generation film on the umbrella cover 1 generates electric energy under the sunlight, and according to the difference of the electric energy generated by the solar power generation film in different directions, the motor controller drives the motor IV 4-6 to work to drive the driving gear 4-12 matched with the transmission shaft to rotate, so that the driven gear 4-13 meshed with the driving gear 4-12 rotates, the rotating shaft of the rotating base 4-4 matched with the hub of the driven gear 4-13 rotates, and finally the rotating base 4-4 rotates. Meanwhile, the motor II 3-2 works to drive the umbrella rod rotating shaft 3-5 connected with the transmission shaft of the motor II to rotate through the coupler, so that the upper supporting rod 3-3 on the umbrella rod rotating shaft 3-5 rotates, the sunshade umbrella cover 1 of the sunshade umbrella can rotate according to different electric energy, the rotation of the sunshade umbrella cover is realized, the umbrella cover rotates to the optimal position, the maximum shading effect is achieved, and the purpose of automatically tracking sunlight is achieved.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A sunshade umbrella is characterized in that: comprises an umbrella surface (1), a transmission bevel gear (2), an umbrella rod (3) and a base (4); wherein, base (4) are installed to umbrella pole (3) one end, and umbrella face (1) are installed to umbrella pole (3) other end, and umbrella face (1) are folded and are extended through transmission bevel gear (2) drive.

2. Sunshade according to claim 1, characterized in that: the umbrella cover (1) comprises a plurality of fan-shaped umbrella plates (1-1), a plurality of driven umbrella frames (1-2), a driving umbrella frame (1-3), a motor I (1-4) and a sliding block (1-5); one of the driven umbrella stands (1-2) is a fixed driven umbrella stand, and the rest are movable driven umbrella stands; the umbrella comprises a plurality of fan-shaped umbrella plates (1-1), a round umbrella cover is formed by every two fan-shaped umbrella plates (1-1) which are hinged with each other, two ends of other fan-shaped umbrella plates (1-1) except for a head group and a tail group are respectively hinged with a movable driven umbrella stand (1-2), one end of the head group is hinged with a driving umbrella stand (1-3), the other end of the head group is hinged with the movable driven umbrella stand (1-2), one end of the tail group is hinged with the movable driven umbrella stand (1-2), and the other end of the tail group is hinged with a fixed driven umbrella stand (1-2); the upper tail ends of the movable driven umbrella stands (1-2) are hooked and buckled at the groove at the top end of an upper supporting rod (3-3) in the umbrella rod (3), threaded holes are formed in cylinders at the lower tail ends of the movable driven umbrella stands (1-2) and are connected with threaded columns of the sliding blocks (1-5), and the sliding blocks (1-5) are arranged in sliding rails of sliding block shaft sleeves (3-4) in the umbrella rod (3); the fixed driven umbrella stand (1-2) is different from the movable driven umbrella stand (1-2) only in that: the upper hook-shaped tail end of the fixed driven umbrella stand (1-2) is welded with a groove at the top end of the upper supporting rod (3-3), and a sliding block (1-5) connected with the fixed driven umbrella stand (1-2) is welded with a sliding rail of a sliding block shaft sleeve (3-4) in the umbrella rod (3); the upper tail end of the driving umbrella stand (1-3) is in a hook shape and is hung and buckled at the groove at the top end of the upper supporting rod (3-3), a motor I (1-4) is fixedly installed in a cylinder at the lower tail end of the driving umbrella stand (1-3) through screws, and a transmission shaft of the motor I (1-4) is sleeved in a bearing I (2-4) in the transmission bevel gear (2).

3. Sunshade according to claim 1, characterized in that: the transmission bevel gear (2) comprises a small bevel gear (2-1), a large bevel gear (2-2), a support frame (2-3), a bearing I (2-4) and a support frame bearing (2-5); the outer ring of the bearing I (2-4) is sleeved in a bearing hole of the small bevel gear (2-1), a transmission shaft of a motor I (1-4) in the umbrella cover (1) is arranged in an inner ring of the bearing I (2-4), and the small bevel gear (2-1) is driven to rotate through the motor I (1-4); a large bevel gear (2-2) sleeved at the lower part of the upper supporting rod (3-3) is meshed with a small bevel gear (2-1); the inner ring of the support frame bearing (2-5) is sleeved on the upper support rod (3-3) and is positioned between the large bevel gear (2-2) and the top end of the upper support rod (3-3); one end of a horizontal hole of the support frame (2-3) is sleeved on the outer ring of the support frame bearing (2-5), and one end of a vertical hole of the support frame (2-3) is sleeved on the outer surface of a cylinder at the tail end of the active umbrella frame (1-3).

4. Sunshade according to claim 1, characterized in that: the umbrella rod (3) comprises a telescopic support rod (3-1), a motor II (3-2), an upper support rod (3-3), a slide block shaft sleeve (3-4) and an umbrella rod rotating shaft (3-5); the slide block shaft sleeve (3-4) is sleeved at the lower part of the upper supporting rod (3-3); the umbrella rod rotating shaft (3-5) is in interference fit with the end hole of the upper supporting rod (3-3) and passes through the upper end hole of the telescopic supporting rod (3-1); the transmission shaft of the motor II (3-2) is connected with the umbrella rod rotating shaft (3-5) through a coupler, and the motor II (3-2) works to drive the umbrella rod rotating shaft (3-5) to rotate, so that the upper supporting rod (3-3) on the umbrella rod rotating shaft (3-5) rotates.

5. Sunshade according to claim 1, characterized in that: the base (4) comprises an umbrella box (4-1), a base box (4-2), a supporting seat (4-3), a rotating base (4-4), a motor III (4-5), a motor IV (4-6), a bearing II (4-7), a rotating main shaft (4-8), a shaft supporting seat (4-9), a bolt (4-10), a base bearing (4-11), a driving gear (4-12) and a driven gear (4-13); the base box (4-2) is arranged on a bottom plate of the umbrella box (4-1) through screws, the supporting base (4-3) is fixedly arranged on the bottom plate of the base box (4-2) through screws, the motor IV (4-6) is arranged on the bottom plate of the base box (4-2) through screws, an output shaft of the motor IV (4-6) is matched with a hub of a driving gear (4-12) through a key, the driving gear (4-12) is meshed with a driven gear (4-13) to transmit power, the hub of the driven gear (4-13) is matched with a rotating shaft of the rotating base (4-4) through a key, meanwhile, the rotating shaft of the rotating base (4-4) is in interference fit with an inner ring of a bearing II (4-7) sleeved in a bearing hole of the supporting base (4-3), and the two shaft bases (4-9) are respectively and symmetrically fixed on the rotating base (4-4) through bolts (4-4), an outer ring of a bearing (4-11) is sleeved in a bearing hole of a shaft support (4-9), a rotating main shaft (4-8) penetrates through an inner ring hole of the bearing (4-11) and a bottom assembly hole of a telescopic supporting rod (3-1) in an umbrella rod (3), the rotating main shaft (4-8) is in interference fit with the bottom assembly hole of the telescopic supporting rod (3-1), and the rotating main shaft (4-8) is connected with a motor III (4-5) shaft through a coupler; the motor III (4-5) works to drive the rotating main shaft (4-8) to rotate, so that the rotating main shaft (4-8) is rotated by the telescopic supporting rod (3-1) matched with the rotating main shaft.