LED lighting device applied to scenic spot

文档序号:94701 发布日期:2021-10-12 浏览:20次 中文

阅读说明:本技术 一种应用于风景区的led照明装置 (LED lighting device applied to scenic spot ) 是由 杨福林 于 2021-09-08 设计创作,主要内容包括:本发明适用于照明设备技术领域,一种应用于风景区的LED照明装置,包括照明装置、感应装置和节能装置,照明装置包括LED灯、第一转动装置、第一灯杆、第二转动装置、第二灯杆、第三转动装置和底座,LED灯通过第一转动装置安装在第一灯杆上,第一灯杆安装在第二灯杆上,第二灯杆安装在底座上;第二灯杆包括杆体和电机箱,电机箱安装在杆体上,第二转动装置安装在电机箱内,节能装置安装在电机箱上,第三转动装置安装在底座上;节能装置包括太阳能板和支撑杆,支撑杆安装在电机箱上,太阳能板安装在支撑杆上。本发明采用感应装置感应游客接近,通过转动装置控制LED灯转动与游客进行互动,为游客进行灯光表演,增添了游玩乐趣。(The invention is suitable for the technical field of lighting equipment, and discloses an LED lighting device applied to a scenic spot, which comprises a lighting device, an induction device and an energy-saving device, wherein the lighting device comprises an LED lamp, a first rotating device, a first lamp post, a second rotating device, a second lamp post, a third rotating device and a base; the second lamp pole comprises a pole body and a motor box, the motor box is arranged on the pole body, the second rotating device is arranged in the motor box, the energy-saving device is arranged on the motor box, and the third rotating device is arranged on the base; the energy-saving device comprises a solar panel and a supporting rod, the supporting rod is installed on the motor box, and the solar panel is installed on the supporting rod. The invention adopts the induction device to induce the approach of the tourist, and controls the LED lamp to rotate through the rotating device to interact with the tourist, thereby adding fun for the tourist to perform lamplight performance.)

1. The utility model provides a be applied to LED lighting device in scenic spot, includes lighting device (1), induction system (2) and economizer (3), its characterized in that: the lighting device (1) comprises an LED lamp (101), a first rotating device (4), a first lamp post (5), a second rotating device (6), a second lamp post (7), a third rotating device (8) and a base (9), wherein the LED lamp (101) is installed on the first lamp post (5) through the first rotating device (4), the first lamp post (5) is installed on the second lamp post (7), and the second lamp post (7) is installed on the base (9); the second lamp pole (7) comprises a pole body (701) and a motor box (702), the motor box (702) is installed on the pole body (701), the second rotating device (6) is installed in the motor box (702), the energy-saving device (3) is installed on the motor box (702), and the third rotating device (8) is installed on the base (9); the energy-saving device (3) comprises a solar panel (301) and a supporting rod (302), the supporting rod (302) is installed on the motor box (702), and the solar panel (301) is installed on the supporting rod (302).

2. An LED lighting device for use in a scenic spot as defined in claim 1, wherein: the first rotating device (4) comprises a first support (401), a first rotating shaft (402), a first transmission mechanism (10) and a first motor (403), the first support (401) is installed on the LED lamp (101), the first rotating shaft (402) is fixed on the first support (401), the first motor (403) is connected with the first rotating shaft (402) through the first transmission mechanism (10), and the first motor (403) is installed inside the first lamp pole (5).

3. An LED lighting device for use in a scenic spot as defined in claim 2, wherein: the first transmission mechanism (10) comprises a first bevel gear (11) and a second bevel gear (12), the first bevel gear (11) is installed on the first rotating shaft (402), and the second bevel gear (12) is installed on the first motor (403) and meshed with the first bevel gear (11).

4. An LED lighting device for use in a scenic spot as defined in claim 1, wherein: the motor case (702) includes first through-hole (13), second rotating device (6) include second motor (601) and shaft coupling (602), first lamp pole (5) pass through first through-hole (13) with shaft coupling (602) one end links to each other, second motor (601) with the shaft coupling (602) other end links to each other.

5. An LED lighting device for use in a scenic spot as defined in claim 1, wherein: the third rotating device (8) comprises a protective cover (14), a third motor (15) and a second transmission mechanism (16), the protective cover (14) comprises a second through hole (1401) and a third through hole (1402), the protective cover (14) and the third motor (15) are installed on the base (9), the second transmission mechanism (16) is installed in the protective cover (14), the rod body (701) is connected with the second transmission mechanism (16) through the second through hole (1401), and the third motor (15) is connected with the second transmission mechanism (16) through the third through hole (1402).

6. An LED lighting device for use in a scenic spot as defined in claim 5, wherein: the second transmission mechanism (16) comprises a third bevel gear (17) and a fourth bevel gear (18), the third bevel gear (17) is fixed on the rod body (701), the fourth bevel gear (18) is fixed on the third motor (15), and the third bevel gear (17) is meshed with the fourth bevel gear (18).

7. An LED lighting device for use in a scenic spot as defined in claim 1, wherein: the energy-saving device (3) comprises a push rod (19) and a push rod seat (20), the push rod (19) and the push rod seat (20) are respectively installed on the solar panel (301) and the motor box (702) through hinges, and hydraulic transmission is adopted between the push rod (19) and the push rod seat (20); the solar panel (301) is connected with the supporting rod (302) through a hinge.

8. An LED lighting device for use in a scenic spot as defined in claim 7, wherein: the induction device (2) is installed on the back of the solar panel (301).

9. An LED lighting device for use in a scenic spot as defined in claim 8, wherein: the induction device (2) comprises infrared heat source inductors (21), and the infrared heat source inductors (21) are arranged on two sides of the push rod (19).

10. An LED lighting device for use in a scenic spot as defined in claim 1, wherein: the bottom of the base (9) is provided with a cross groove.

Technical Field

The invention is suitable for the technical field of lighting equipment, and particularly relates to an LED lighting device applied to a scenic spot.

Background

The LED illumination is light emitting diode illumination, and is a semiconductor solid light emitting device. The solid semiconductor chip is used as a luminescent material, and the carriers are compounded in the semiconductor to release excess energy to cause photon emission, so that red, yellow, blue and green light is directly emitted. An illumination device manufactured by using an LED as a light source is an LED lamp. In the LED lighting lamp, the LED lighting lamp with the reflection function can be completely qualified in any occasions.

At present, the scenic spot lighting form is summarized into two types, namely basic lighting, namely normal lighting. The normal lighting is to reflect the beauty and texture of the space, the texture of the material, the shade change of the light and shadow, the rhythm of the light and the shade, the architectural characteristics and certain outline elements, which are all the functions of enlightening and infecting people possessed by the normal lighting, and the decorative light is converted into functional light by paving decorative lamplight, thereby not only meeting the visual aesthetic feeling of people, but also illuminating roads, fences around feet and trees in the residual light, and the normal lighting is undoubtedly good; second, illumination of a performance (deductive) has become an attractive and important weapon in a travel program, and if it is said that conventional illumination primes a space, the deductive illumination is a climax event in the space. The light deduction is a brand new concept and can be called as one-time investment for many years.

The illumination angle of light can not be adjusted to current scenic spot lighting apparatus, and is poor with visitor's interactivity, and visitor's night trip experience remains to be promoted.

Disclosure of Invention

The invention aims to provide an LED lighting device applied to a scenic spot, and aims to solve the problem that the existing scenic spot lighting equipment is poor in interactivity with tourists.

The technical problem is solved by the following technical scheme, the LED lighting device applied to the scenic spot comprises a lighting device, an induction device and an energy-saving device, wherein the lighting device comprises an LED lamp, a first rotating device, a first lamp post, a second rotating device, a second lamp post, a third rotating device and a base; the second lamp pole comprises a pole body and a motor box, the motor box is mounted on the pole body, the second rotating device is mounted in the motor box, the energy-saving device is mounted on the motor box, and the third rotating device is mounted on the base; the energy-saving device comprises a solar panel and a supporting rod, the supporting rod is installed on the motor box, and the solar panel is installed on the supporting rod.

Furthermore, the first rotating device comprises a first support, a first rotating shaft, a first transmission mechanism and a first motor, the first support is installed on the LED lamp, the first rotating shaft is fixed on the first support, the first motor is connected with the first rotating shaft through the first transmission mechanism, and the first motor is installed inside the first lamp pole.

Further, the first transmission mechanism includes a first bevel gear mounted on the first rotating shaft and a second bevel gear mounted on the first motor and engaged with the first bevel gear.

Furthermore, the motor box comprises a first mounting hole, the second rotating device comprises a second motor and a coupler, the first lamp pole is connected with one end of the coupler through the first through hole, and the second motor is connected with the other end of the coupler.

Furthermore, the third rotating device comprises a protective cover, a third motor and a second transmission mechanism, the protective cover comprises a second through hole and a third through hole, the protective cover and the third motor are installed on the base, the second transmission mechanism is installed in the protective cover, the rod body passes through the second through hole and is connected with the second transmission mechanism, and the third motor passes through the third through hole and is connected with the second transmission mechanism.

Furthermore, the second transmission mechanism comprises a third bevel gear and a fourth bevel gear, the third bevel gear is fixed on the rod body, the fourth bevel gear is fixed on the third motor, and the third bevel gear is meshed with the fourth bevel gear.

Furthermore, the energy-saving device comprises a push rod and a push rod seat, the push rod and the push rod seat are respectively installed on the solar panel and the motor box through hinges, and hydraulic transmission is adopted between the push rod and the push rod seat; the solar panel is connected with the supporting rod through a hinge.

Further, the sensing device is mounted on the back of the solar panel.

Furthermore, the sensing device comprises infrared heat source sensors which are arranged on two sides of the push rod.

Furthermore, the bottom of the base is provided with a cross-shaped groove.

The beneficial technical effects provided by the invention are as follows: firstly, because induction system can respond to the visitor and be close, first rotating device, second rotating device and third rotating device control LED lamp rotate at X, Y, Z axle directions respectively, so the LED lamp can interact with the visitor, can also accomplish the action cooperation between the different lighting device, carries out the light performance for the visitor, adds visitor's enjoyment of playing.

Secondly, because induction system installs the solar panel back, so during the daytime, solar panel's inclination can aim at the direction of solar radiation constantly to improved the utilization ratio of solar energy and the energy-conserving efficiency of device, night, induction system's response angle can be adjusted through flexible solar panel's of regulation angle to the push rod, thereby widened induction system's response scope, improved the accuracy nature of response, improved lighting device and visitor's interactive accuracy, promoted the play and experienced.

Finally, because the infrared heat source sensor is adopted as the sensing device, the sensor can sense the infrared rays emitted by the human body at night, so that the position of the human body is sensed, the interference of the illumination condition at night is avoided, and the lighting device and the tourist can conveniently interact.

Drawings

FIG. 1 is an overall view of an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is a cross-sectional view at section A-A of FIG. 2;

FIG. 5 is a cross-sectional view at section B-B of FIG. 4;

FIG. 6 is a partial view at C of FIG. 5;

FIG. 7 is a partial view taken at D of FIG. 5;

FIG. 8 is an overall view of a sensing device according to an embodiment of the present invention in operation;

FIG. 9 is a cross-sectional view at section E-E of FIG. 8;

fig. 10 is a sectional view at section F-F in fig. 8.

In the figure: 1. an illumination device; 2. an induction device; 3. an energy saving device; 4. a first rotating device; 5. a first lamp post; 6. a second rotating device; 7. a second light pole; 8. a third rotating device; 9. a base; 10. a first transmission mechanism; 11. a first bevel gear; 12. a second bevel gear; 13. a first through hole; 14. a protective cover; 15. a third motor; 16. a second transmission mechanism; 17. a third bevel gear; 18. a fourth bevel gear; 19. a push rod; 20. a push rod seat; 21. an infrared heat source sensor.

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.

It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.

Example one

Referring to fig. 1 to 9, an LED lighting device applied to a scenic spot includes a lighting device 1, an induction device 2 and an energy saving device 3, where the lighting device 1 includes an LED lamp 101, a first rotating device 4, a first lamp post 5, a second rotating device 6, a second lamp post 7, a third rotating device 8 and a base 9, the LED lamp 101 is installed on the first lamp post 5 through the first rotating device 4, the first lamp post 5 is installed on the second lamp post 7, and the second lamp post 7 is installed on the base 9; the second lamp pole 7 comprises a pole body 701 and a motor box 702, the motor box 702 is installed on the pole body 701, the second rotating device 6 is installed in the motor box 702, the energy-saving device 3 is installed on the motor box 702, and the third rotating device 8 is installed on the base 9; the energy-saving device 3 comprises a solar panel 301 and a support rod 302, wherein the support rod 302 is arranged on a motor box 702, and the solar panel 301 is arranged on the support rod 302;

at night, the LED lamp 101 is arranged at a high position through the first lamp pole 5, the second lamp pole 7 and the base 9 to provide illumination for a scenic spot, and when the sensing device 2 senses that a visitor approaches, the first rotating device 4, the second rotating device 6 and the third rotating device 8 control the LED lamp 101 to rotate in the direction of the X, Y, Z axis respectively; in the daytime, the solar panel 301 can absorb solar energy in the solar illumination and store the solar energy in the storage battery, and the storage battery can supply power for night illumination of the LED lamp 101, so that the requirements of energy conservation and environmental protection are met.

The first rotating device 4 comprises a first support 401, a first rotating shaft 402, a first transmission mechanism 10 and a first motor 403, wherein the first support 401 is installed on the LED lamp 101, the first rotating shaft 402 is fixed on the first support 401, the first motor 403 is connected with the first rotating shaft 402 through the first transmission mechanism 10, and the first motor 403 is installed inside the first lamp pole 5;

the first motor 403 drives the first rotating shaft 402 to rotate through the first transmission mechanism 10, and the first rotating shaft 402 rotates to drive the first support 401 to rotate, so that the LED lamp 101 fixed on the first support 401 can rotate in the X-axis direction.

Wherein, the first transmission mechanism 10 comprises a first bevel gear 11 and a second bevel gear 12, the first bevel gear 11 is installed on the first rotating shaft 402, the second bevel gear 12 is installed on the first motor 403 and is engaged with the first bevel gear 11;

the first motor 403 drives the first bevel gear 11 to rotate by driving the second bevel gear 12 to rotate, and transmits torque to the first rotating shaft 402, so as to control the first rotating shaft 402 to rotate; the bevel gears can be used for transmitting power in different axial directions, so that the first motor 403 and the first rotating shaft 402 can be arranged in an axial perpendicular mode, the space utilization rate is improved, and the size of the device is reduced.

The motor box 702 comprises a first through hole 13, the second rotating device 6 comprises a second motor 601 and a coupler 602, the first lamp pole 5 is connected with one end of the coupler 602 through the first through hole 13, and the second motor 601 is connected with the other end of the coupler 602;

the first lamp pole 5 is fixed on the first through hole 13 through a bearing, and the second motor 601 drives the first lamp pole 5 to rotate through the coupler 602, so that the LED lamp 101 is controlled to rotate in the Y-axis direction.

When the sensing device 2 senses that a visitor approaches, the first motor 403 drives the second bevel gear 12 to rotate to drive the first bevel gear 11 to rotate, and transmits torque to the first rotating shaft 402, so that the first rotating shaft 402 is controlled to rotate, and the first rotating shaft 402 rotates to drive the first support 401 to rotate, so that the LED lamp 101 fixed on the first support 401 can rotate in the X-axis direction; the first lamp post 5 is fixed on the first through hole 13 through a bearing, and the second motor 601 drives the first lamp post 5 to rotate through the coupler 602, so that the LED lamp 101 is controlled to rotate in the Y-axis direction; the third rotating device 8 can control the LED lamp 101 to rotate in the Z-axis direction. The first rotating device 4, the second rotating device 6 and the third rotating device 8 can control the LED lamp 101 to interact with tourists, and action coordination can be achieved among different lighting devices 1. The solar panel 301 can absorb solar energy in solar illumination in the daytime and store the solar energy in the storage battery, and the storage battery can supply power for night LED lamp 101 illumination.

The beneficial effect that this embodiment provided: because the first rotating device 4, the second rotating device 6 and the third rotating device 8 control the LED lamp 101 to rotate in the direction of the X, Y, Z axis respectively, the LED lamp 101 can interact with the tourists, and different lighting devices 1 can complete action coordination, so that the light performance of the tourists is realized, and the pleasure of the tourists is added; because solar panel 301 can absorb solar energy daytime and supply energy for LED lamp 101 illumination, so this device's energy-conserving effectual can satisfy the environmental protection requirement.

Example two

Referring to fig. 1 to 9, the second embodiment includes all the structures and advantages of the first embodiment, and the difference from the first embodiment is that the third rotating device 8 includes a protective cover 14, a third motor 15 and a second transmission mechanism 16, the protective cover 14 includes a second through hole 1401 and a third through hole 1402, the protective cover 14 and the third motor 15 are installed on the base 9, the second transmission mechanism 16 is installed in the protective cover 14, the rod 701 is connected to the second transmission mechanism 16 through the second through hole 1401, and the third motor 15 is connected to the second transmission mechanism 16 through the third through hole 1402;

the third motor 15 drives the rod 701 to rotate through the second transmission mechanism 16, so as to control the rotation of the lighting device 1 in the Z-axis direction, and the protective cover 14 plays a role in water resistance and dust resistance, so as to ensure that the second transmission mechanism 16 can work normally.

The second transmission mechanism 16 comprises a third bevel gear 17 and a fourth bevel gear 18, the third bevel gear 17 is fixed on the rod body 701, the fourth bevel gear 18 is fixed on the third motor 15, and the third bevel gear 17 is meshed with the fourth bevel gear 18;

the third motor 15 drives the fourth bevel gear 18 to rotate, and drives the third bevel gear 17 to rotate through gear transmission, so that the rod body 701 is controlled to rotate in the Z-axis direction; the bevel gear is adopted to transmit power in different axial directions, so that the third motor 15 and the rod body 701 can be vertically arranged in an axial line manner, the space utilization rate is improved, and the size of the device is reduced.

When the lighting device works, the third motor 15 drives the fourth bevel gear 18 to rotate, and drives the third bevel gear 17 to rotate through gear transmission to drive the rod body 701 to rotate, so that the lighting device 1 is controlled to rotate in the Z-axis direction; the shield 14 functions as a waterproof and dustproof.

With reference to the first embodiment, the present embodiment provides the following beneficial effects: because the second transmission mechanism 16 is arranged in the protective cover 14, the protective cover 14 can prevent water and dust from entering the second transmission mechanism 16, and the second transmission mechanism 16 can work normally; because the second transmission mechanism 16 is driven by a bevel gear, the third motor 15 and the rod body 701 can be vertically arranged along the axis, so that the space utilization rate is improved, and the volume of the device is reduced.

EXAMPLE III

Referring to fig. 1, the third embodiment includes all the structures and advantages of the first embodiment, and the difference from the first embodiment is that the energy saving device 3 includes a push rod 19 and a push rod seat 20, the push rod 19 and the push rod seat 20 are respectively installed on the solar panel 301 and the motor box 702 through hinges, and hydraulic transmission is performed between the push rod 19 and the push rod seat 20; the solar panel 301 is connected with the supporting rod 302 through a hinge;

the push rod seat 20 drives the push rod 19 to perform telescopic motion through forward and reverse output hydraulic oil, and the solar panel 301 and the support rod 302 are connected through the hinge, so that the solar panel 301 can be driven to rotate by the telescopic motion of the push rod 19, and the third rotating device 8 can control the energy-saving device 3 to rotate in the Z-axis direction, so that the inclination angle of the solar panel 301 can be constantly aligned to the direction of direct solar radiation in the daytime, and the utilization rate of solar energy and the energy-saving efficiency of the device are improved.

Wherein, the induction device 2 is arranged on the back of the solar panel 301;

at night, the push rod seat 20 can push the push rod 19 to extend out, so that the solar panel 301 is turned over, the sensing device 2 faces the irradiation direction of the LED lamp 101, and when the sensing device 2 senses that a visitor approaches, the first rotating device 4, the second rotating device 6 and the third rotating device 8 work, so that the lighting device 1 interacts with the visitor, and the playing interest is improved; the push rod 19 can adjust the sensing angle of the sensing device 2 by adjusting the angle of the solar panel 301 in a telescopic manner, so that the sensing range of the sensing device 2 is widened, and the sensing accuracy is improved.

Wherein, the induction device 2 comprises an infrared heat source inductor 21, and the infrared heat source inductor 21 is arranged at two sides of the push rod 19;

the human body temperature that is invariable is generally at 36~37 degrees, and the human body can send the infrared ray of specific wavelength as the heat source, and infrared heat source inductor 21 can sense the infrared ray that the human body launched at night to sense human position, do not receive the interference of night illumination condition. The infrared heat source sensors 21 are arranged on two sides of the push rod 19, so that the push rod 19 can be prevented from shielding the sensors, and the sensing precision is prevented from being influenced.

Wherein, the bottom of the base 9 is provided with a cross groove;

the bottom of the base 9 is provided with a cross groove, so that the positioning precision of the base 9 can be improved, and the base 9 can be fixed more stably.

When the solar energy-saving device works, the push rod seat 20 outputs hydraulic oil in the forward and reverse directions to drive the push rod 19 to do telescopic motion, the solar panel 301 can be driven to rotate by the telescopic motion of the push rod 19 due to the fact that the solar panel 301 is connected with the supporting rod 302 through the hinge, and the third rotating device 8 can control the energy-saving device 3 to rotate in the Z-axis direction, so that the inclination angle of the solar panel 301 can be constantly aligned to the direct solar radiation direction in daytime; at night, the push rod seat 20 can push the push rod 19 to extend out, so that the solar panel 301 is turned over, the sensing device 2 faces the irradiation direction of the LED lamp 101, when the sensing device 2 senses that a visitor approaches, the first rotating device 4, the second rotating device 6 and the third rotating device 8 work, and the push rod 19 can adjust the sensing angle of the sensing device 2 by adjusting the angle of the solar panel 301 in a telescopic mode; the sensing device 2 can sense the infrared rays emitted from the human body at night by using the infrared heat source sensor 21, thereby sensing the position of the human body.

With reference to the first embodiment, the present embodiment provides the following beneficial effects: because the bottom of the base 9 is provided with the cross-shaped groove, the positioning precision of the base 9 is higher, and the base 9 is more stably fixed; the inclination angle of the solar panel 301 can be constantly aligned with the direct solar radiation direction, so that the utilization rate of solar energy and the energy-saving efficiency of the device are high; the push rod 19 can adjust the induction angle of the induction device 2 by telescopically adjusting the angle of the solar panel 301, so that the induction range of the induction device 2 is large, the induction accuracy is high, the interaction accuracy of the lighting device 1 and a visitor is improved, and the playing experience is improved; because the infrared heat source sensor 21 is adopted as the sensing device 2, the sensing device 2 can sense the position of the human body at night without being interfered by the illumination condition at night, and the lighting device 1 is convenient to interact with tourists.

The beneficial technical effects provided by the invention are as follows: firstly, because induction system 2 can respond to the visitor and be close, first rotating device 4, second rotating device 6 and third rotating device 8 control LED lamp 101 rotate at X, Y, Z axle directions respectively, so LED lamp 101 can carry out the interdynamic with the visitor, can also accomplish the action cooperation between the different lighting device 1, carries out the light performance for the visitor, adds visitor's enjoyment of playing.

Secondly, because induction system 2 installs at the solar panel 301 back, so during the daytime, solar panel 301's inclination can aim at the direction of solar radiation constantly, thereby the utilization ratio of solar energy and the energy-conserving efficiency of device have been improved, night, induction system 2's response angle can be adjusted through flexible solar panel 301's angle of regulation to push rod 19, thereby induction system 2's response scope has been widened, the accuracy nature of response has been improved, lighting device 1 and visitor interactive accuracy has been improved, the play experience has been promoted.

Finally, because the infrared heat source sensor 21 is adopted as the sensing device 2, the sensor can sense the infrared rays emitted by the human body at night, so that the position of the human body is sensed, the interference of the illumination condition at night is avoided, and the interaction between the lighting device 1 and the tourist is facilitated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

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