Temporary safety lighting switch for construction

文档序号:1891867 发布日期:2021-11-26 浏览:14次 中文

阅读说明:本技术 一种施工用临时安全照明开关 (Temporary safety lighting switch for construction ) 是由 王涛涛 于 2021-10-27 设计创作,主要内容包括:本发明公开了一种施工用临时安全照明开关,涉及照明开关技术领域。本发明包括开关主体,所述开关主体的内部左侧和右侧均设置有用于对开关主体进行防护的防护机构,所述开关主体的内壁底部设置有用于防尘的防尘机构,所述防尘机构远离接线模块的一侧设置有用于对防尘机构上附着的雾水进行清洁的辅助机构。本发明通过固定空球的设置,在开关主体遇到锅炉房蒸汽的高温时,固定空球遇热内部气体膨胀,固定空球中的气体推动塞杆向下移动,在铰接杆作用下,使得塞杆推动滑板向接线模块方向移动,从而使得滑板堵住防尘网,从而避免了锅炉房中产生热蒸汽,临时开关容易被热蒸汽中的水汽腐蚀的问题,进而提高了开关主体的使用寿命。(The invention discloses a temporary safety lighting switch for construction, and relates to the technical field of lighting switches. The switch comprises a switch main body, wherein protection mechanisms for protecting the switch main body are arranged on the left side and the right side in the switch main body, a dustproof mechanism for preventing dust is arranged at the bottom of the inner wall of the switch main body, and an auxiliary mechanism for cleaning fog attached to the dustproof mechanism is arranged on one side of the dustproof mechanism, which is far away from a wiring module. According to the invention, through the arrangement of the fixed hollow ball, when the switch main body meets the high temperature of steam in the boiler room, the fixed hollow ball is expanded by the internal gas heated, the gas in the fixed hollow ball pushes the plug rod to move downwards, and the plug rod pushes the sliding plate to move towards the wiring module under the action of the hinge rod, so that the sliding plate blocks the dustproof net, the problem that a temporary switch is easily corroded by water vapor in the hot steam due to the generation of the hot steam in the boiler room is avoided, and the service life of the switch main body is prolonged.)

1. The utility model provides a construction is with interim safe lighting switch, includes switch main part (1), its characterized in that: the back of switch main part (1) is provided with wiring hole (3), the inner wall of switch main part (1) openly is fixed with wiring module (4), the inside left side and the right side of switch main part (1) all are provided with and are used for carrying out protection machanism (2) of protecting to switch main part (1), the inner wall bottom of switch main part (1) is provided with and is used for dirt-proof dustproof mechanism (5), one side that wiring module (4) were kept away from in dustproof mechanism (5) is provided with and is used for carrying out clear complementary unit (6) to adnexed fog water on dustproof mechanism (5).

2. A temporary safety lighting switch for construction as claimed in claim 1, wherein: protection machanism (2) are including fixed chamber (21), fixed chamber (21) are inlayed on the inner wall of switch main part (1), one side that fixed chamber (21) are close to wiring module (4) is provided with radiator unit (24), the top of fixed chamber (21) is fixed with fixed empty ball (22), the bottom of fixed chamber (21) is run through and slidable mounting has gag lever post (23), the bottom of gag lever post (23) is articulated with the one end of hinge bar (25), the other end of hinge bar (25) is articulated with the top of slide (26), slide (26) slide in the inner wall bottom of switch main part (1), one side that slide (26) are close to wiring module (4) is fixed with clean brush board (28), one side that the top of slide (26) is close to complementary unit (6) is fixed with triangle piece (27).

3. A temporary safety lighting switch for construction as claimed in claim 2, wherein: radiating component (24) are including U-shaped frame (241), L shaped plate (242), conflict board (243), set-square (244) and folding spouting bag (245), U-shaped frame (241) are fixed on fixed chamber (21), the one end of folding spouting bag (245) is fixed on the inner wall of U-shaped frame (241), the other end slidable mounting of folding spouting bag (245) is in the inside of U-shaped frame (241), the other end at folding spouting bag (245) is fixed in set-square (244), the nozzle of folding spouting bag (245) runs through the inner wall of U-shaped frame (241), L shaped plate (242) are fixed on cock stem (23), it fixes in the one side of keeping away from cock stem (23) L shaped plate (242) to support touch board (243), it contacts with set-square (244) to support touch board (243).

4. A temporary safety lighting switch for construction as claimed in claim 2, wherein: dustproof mechanism (5) include frame (51), frame (51) are embedded and are fixed in switch main part (1), the inner wall bottom, the inside of frame (51) is fixed with dust screen (52), one side that dust screen (52) were kept away from at the top of frame (51) is fixed with elasticity and links board (53), the top of elasticity even board (53) is fixed with fixed plate (54), the top of fixed plate (54) is fixed with protruding ball piece (55).

5. A temporary safety lighting switch for construction as claimed in claim 4, wherein: the auxiliary mechanism (6) comprises a mechanism shell (61), the mechanism shell (61) is fixed at the bottom of the switch main body (1), the top of the mechanism shell (61) is penetrated and hinged with a turnover plate (62), a steel ball (65) is arranged inside the top of the turnover plate (62), one side of the turnover plate (62), which is far away from the dustproof mechanism (5), is connected with the mechanism shell (61) through an elastic sheet (63), and one side of the turnover plate (62), which is close to the dustproof mechanism (5), is fixed with an elastic arc-shaped knocking rod (64).

6. A temporary safety lighting switch for construction as claimed in claim 5, wherein: the triangular block (27) is in contact with the top of the turnover plate (62), and the elastic arc-shaped knocking rod (64) is in contact with the convex ball block (55).

7. A temporary safety lighting switch for construction as claimed in claim 4, wherein: the bottom of the cleaning brush plate (28) is in contact with the top of the dust screen (52).

Technical Field

The invention relates to the technical field of lighting switches, in particular to a temporary safety lighting switch for construction.

Background

The lighting switch is a device designed for families, offices, public entertainment places and the like and used for isolating a power supply or connecting or disconnecting current in a circuit or changing the connection method of the circuit according to a specification; the switch makes the main spare part of electric safety is used in the illumination, and its product quality, performance material all have crucial decisive role to prevention conflagration, reduction loss. The switch panel is generally installed at the later stage after construction, and is usually externally connected with a temporary switch in the later stage.

When current temporary switch was used in the inside region in boiler room, because boiler room inside temperature is great, and can produce certain hot steam when steam reveals, the very easy steam that is corroded in the hot steam of temporary switch to cause very big potential safety hazard, consequently, we have provided a construction and used interim safe lighting device.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a temporary safety lighting switch for construction, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a construction is with interim safe lighting switch, includes the switch main part, the back of switch main part is provided with the wiring hole, the inner wall of switch main part openly is fixed with the wiring module, the inside left side and the right side of switch main part all are provided with the protection machanism that is used for protecting the switch main part, the inner wall bottom of switch main part is provided with and is used for dirt-proof dustproof mechanism, one side that wiring module was kept away from to dustproof mechanism is provided with and is used for carrying out clear complementary unit to adnexed fog water on the dustproof mechanism.

Preferably, protection machanism is including fixed chamber, fixed chamber inlays admittedly on the inner wall of switch main part, one side that fixed chamber is close to the wiring module is provided with radiator unit, the top in fixed chamber is fixed with fixed empty ball, the bottom in fixed chamber runs through and slidable mounting has the cock stem, the bottom of cock stem is articulated with the one end of hinge bar, the other end of hinge bar is articulated with the top of slide, the slide slides in the inner wall bottom of switch main part, one side that the slide is close to the wiring module is fixed with clean brush board, one side that the top of slide is close to complementary unit is fixed with three hornblocks.

Preferably, radiator unit includes U-shaped frame, L shaped plate, supports touch panel, set-square and folding bag of spouting, the U-shaped frame is fixed on fixed chamber, the folding one end of spouting the bag is fixed on the inner wall of U-shaped frame, the folding other end slidable mounting who spouts the bag is in the inside of U-shaped frame, the set-square is fixed at the folding other end of spouting the bag, the folding nozzle that spouts the bag runs through the inner wall of U-shaped frame, the L shaped plate is fixed on the cock stem, support the touch panel and fix the one side of keeping away from the cock stem at the L shaped plate, support touch panel and set-square contact.

Preferably, dustproof mechanism includes the frame, the frame inlays the inner wall bottom at the switch main part, the inside of frame is fixed with the dust screen, one side that the dust screen was kept away from at the top of frame is fixed with elasticity even board, the top of elasticity even board is fixed with the fixed plate, the top of fixed plate is fixed with protruding ball piece.

Preferably, the auxiliary mechanism comprises a mechanism shell, the mechanism shell is fixed at the bottom of the switch main body, the top of the mechanism shell is penetrated and hinged with a turnover plate, a steel ball is arranged inside the top of the turnover plate, one side of the turnover plate, which is far away from the dustproof mechanism, is connected with the mechanism shell through an elastic sheet, and one side of the turnover plate, which is close to the dustproof mechanism, is fixed with an elastic arc-shaped knocking rod.

Preferably, the triangular block is in contact with the top of the turnover plate, and the elastic arc-shaped knocking rod is in contact with the convex ball block.

Preferably, the bottom of the cleaning brush plate is in contact with the top of the dust screen.

The invention provides a temporary safety lighting switch for construction. The method has the following beneficial effects:

(1) according to the invention, through the arrangement of the fixed hollow ball, when the switch main body meets high-temperature steam generated by leakage of a boiler room, the fixed hollow ball is expanded by the internal hot gas, the gas in the fixed hollow ball pushes the plug rod to move downwards, and the plug rod pushes the sliding plate to move towards the wiring module under the action of the hinge rod, so that the sliding plate blocks the dustproof net, the problem that a temporary switch is easily corroded by water vapor in the hot steam generated in the boiler room is avoided, and the service life of the switch main body is prolonged.

(2) According to the invention, the plug rod is matched with the L-shaped plate, in the process that the plug rod is pushed to move downwards by gas in the fixed hollow ball, the plug rod drives the L-shaped plate to move downwards, the L-shaped plate drives the contact plate to move downwards, the contact plate is enabled to contact the triangular plate to move towards the wiring module direction under the matching of the contact plate and the triangular plate, the triangular plate extrudes the folding spraying bag, the folding spraying bag sprays gas through the nozzle, and therefore the gas sprayed by the folding spraying bag blows and dissipates heat of the interior of the switch main body, the problem that the switch main body is damaged due to high temperature is solved, and the service life of the switch main body is prolonged.

(3) According to the invention, through the matching of the sliding plate and the cleaning brush plate, in the process that the plug rod pushes the sliding plate to move towards the wiring module, the sliding plate drives the cleaning brush plate to move, so that the cleaning brush plate cleans dust on the surface of the dust screen, and therefore, the problem that the dust screen is blocked by the dust screen after the switch main body is used for a long time, the switch main body cannot effectively dissipate heat is avoided, and the heat dissipation effect of the switch main body is further improved.

(4) The plug rod pushes the sliding plate to move towards the direction of the wiring module, the sliding plate drives the triangular block to move accordingly, the triangular block is enabled to be abutted against the overturning plate and overturned towards the direction away from the dust screen, the overturning plate drives the elastic arc-shaped knocking rod to turn along with the overturning, the elastic sheet is compressed, when the triangular block is not abutted against the overturning plate, the overturning plate resets under the elastic action of the elastic sheet, the overturning plate drives the elastic arc-shaped knocking rod to impact the fixed plate, under the conduction of the elastic connecting plate, the dust screen vibrates accordingly, dust attached to the dust screen is shaken off by the dust screen, and therefore the dust screen is further prevented from being blocked.

(5) According to the invention, the triangular block is matched with the turnover plate, when the fixed hollow ball is cooled, air in the fixed hollow ball contracts, the plug rod drives the sliding plate to move towards the direction away from the wiring module, so that the triangular block is abutted against the turnover plate to turn towards the direction close to the dustproof net, under the matching of the elastic arc-shaped knocking rod and the convex ball block, the elastic arc-shaped knocking rod is abutted against the convex ball block, so that the fixed plate is continuously vibrated, under the conduction of the elastic connecting plate, the dustproof net is continuously vibrated and shakes off fog attached to the dustproof net, thereby avoiding the problem that the dustproof net is corroded by fog when fog is generated, and further prolonging the service life of the dustproof net.

Drawings

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

FIG. 2 is a rear view of the present invention in its entirety;

FIG. 3 is a rear view partially in section of the present invention in its entirety;

FIG. 4 is a schematic view of the shielding mechanism of the present invention;

FIG. 5 is a schematic view of a heat sink assembly of the present invention;

FIG. 6 is a schematic view of the dust prevention mechanism of the present invention;

FIG. 7 is a schematic view of the assist mechanism of the present invention;

fig. 8 is a schematic view of a front cross section of the roll-over panel of the present invention.

In the figure: 1. a switch main body; 2. a protection mechanism; 21. a fixed cavity; 22. fixing the empty ball; 23. a stopper rod; 24. a heat dissipating component; 241. a U-shaped frame; 242. an L-shaped plate; 243. a touch plate; 244. a set square; 245. folding the spray bag; 25. a hinged lever; 26. a slide plate; 27. a triangular block; 28. cleaning the brush plate; 3. a wiring hole; 4. a wiring module; 5. a dust-proof mechanism; 51. a frame; 52. a dust screen; 53. an elastic connecting plate; 54. a fixing plate; 55. a convex ball block; 6. an auxiliary mechanism; 61. a mechanism housing; 62. a turnover plate; 63. a spring plate; 64. an elastic arc-shaped knocking rod; 65. and (5) steel balls.

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.

Example 1

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a construction is with interim safe lighting switch, including switch main part 1, the back of switch main part 1 is provided with wiring hole 3, the inside in wiring hole 3 is provided with waterproof rubber, switch main part 1's inner wall openly is fixed with wiring module 4, switch main part 1's inside left side and right side all are provided with the protection machanism 2 that is used for protecting switch main part 1, switch main part 1's inner wall bottom is provided with and is used for dirt-proof dustproof mechanism 5, one side that wiring module 4 was kept away from to dustproof mechanism 5 is provided with and is used for carrying out abluent complementary unit 6 to adnexed fog water on dustproof mechanism 5.

Protection machanism 2 includes fixed chamber 21, fixed chamber 21 inlays fixedly on the inner wall of switch main part 1, one side that fixed chamber 21 is close to wiring module 4 is provided with radiator unit 24, the top in fixed chamber 21 is fixed with fixed empty ball 22, the gas in the fixed empty ball 22 is the gas that thermal expansion coefficient is great, fixed empty ball 22 link up with the inside in fixed chamber 21, the bottom of fixed chamber 21 is run through and slidable mounting has gag lever post 23, the bottom of gag lever post 23 is articulated with the one end of articulated arm 25, the other end of articulated arm 25 is articulated with the top of slide 26, slide 26 slides in the inner wall bottom of switch main part 1, one side that slide 26 is close to wiring module 4 is fixed with cleaning brush 28, the bottom of cleaning brush 28 contacts with the top of dust screen 52, one side that the top of slide 26 is close to auxiliary mechanism 6 is fixed with triangle piece 27, triangle piece 27 has a plurality ofly, a plurality of triangle piece 27 align to grid is at the top of slide 26.

The heat dissipation assembly 24 comprises a U-shaped frame 241, L-shaped plates 242, collision plates 243, a triangular plate 244 and a plurality of folding spraying bags 245, the U-shaped frame 241 is fixed on the fixed cavity 21, one end of each folding spraying bag 245 is fixed on the inner wall of the U-shaped frame 241, the folding spraying bags 245 are provided with a plurality of folding spraying bags 245, the folding spraying bags 245 are evenly distributed on the inner wall of the U-shaped frame 241, the other ends of the folding spraying bags 245 are slidably mounted inside the U-shaped frame 241, the triangular plate 244 is fixed at the other ends of the folding spraying bags 245, nozzles of the folding spraying bags 245 penetrate through the inner wall of the U-shaped frame 241, the L-shaped plates 242 are fixed on the plug rod 23, the collision plates 243 are fixed on one side, far away from the plug rod 23, of the L-shaped plates 242, the collision plates 243 are in contact with the triangular plate 244, and the number of the collision plates 243 corresponds to that of the folding spraying bags 245.

The dustproof mechanism 5 comprises a frame 51, the frame 51 is embedded and fixed at the bottom of the inner wall of the switch main body 1, a dustproof net 52 is fixed inside the frame 51, an elastic connecting plate 53 is fixed on one side, away from the dustproof net 52, of the top of the frame 51, a fixing plate 54 is fixed at the top of the elastic connecting plate 53, and a convex ball block 55 is fixed at the top of the fixing plate 54.

During the use, when switch main part 1 meets the temperature that the boiler room produced, fixed cavity 22 meets the inside gas expansion of heat, the gas in the fixed cavity 22 promotes cock stem 23 downstream, under the hinge bar 25 effect, make cock stem 23 promote slide 26 to the removal of wiring module 4 direction, thereby make slide 26 block up dust screen 52, thereby avoided the inside hot steam that produces in boiler room, the problem of the steam corruption in the easy hot steam of interim switch, and then improved switch main part 1's life.

Simultaneously gaseous promotion cock stem 23 in fixed cavity 22 in the process of the downstream, cock stem 23 drives L shaped plate 242 downstream, L shaped plate 242 drives and supports touch panel 243 and then downstream, under conflict board 243 and the cooperation of set-square 244, make to support touch panel 243 conflict set-square 244 to the removal of wiring module 4 direction, set-square 244 extrudes folding spouting bag 245, folding spouting bag 245 is through nozzle blowout gas, thereby make folding spouting bag 245 spun gas to the inside heat dissipation of blowing of switch main part 1, thereby the problem of switch main part 1 because of high temperature damage has been avoided, and then the life of switch main part 1 has been improved.

Simultaneously promote slide 26 at gag lever post 23 and remove the in-process to wiring module 4 direction for slide 26 drives clean brush board 28 and then removes, thereby makes clean brush board 28 clean the dust on dust screen 52 surface, thereby has avoided switch main part 1 to use the back for a long time, and dust blocks up dust screen 52, leads to switch main part 1 can't effectively carry out radiating problem, and then has improved switch main part 1's radiating effect.

Through the setting of fixed empty ball 22, when switch main part 1 met the temperature that the boiler room produced, fixed empty ball 22 met the inside gas expansion of heat, gas promotion cock stem 23 in the fixed empty ball 22 moves down, under the effect of hinge bar 25, make cock stem 23 promote slide 26 to move to wiring module 4 direction, thereby make slide 26 block up dust screen 52, thereby the inside hot steam that produces of boiler room has been avoided, the problem of the steam corruption in the easy hot steam of interim switch, and then the life of switch main part 1 has been improved.

Through stopper rod 23 and the cooperation of L shaped plate 242, gaseous promotion stopper rod 23 in fixed empty ball 22 is the in-process that moves down, make stopper rod 23 drive L shaped plate 242 and move down, L shaped plate 242 drives and supports touch panel 243 and then moves down, under conflict board 243 and the cooperation of set square 244, make to support touch panel 243 conflict set square 244 and move to 4 directions of wiring module, set square 244 extrudes folding spouting bag 245, folding spouting bag 245 is gaseous through the nozzle blowout, thereby make folding spouting bag 245 spun gas to the inside heat dissipation of blowing of switch main part 1, thereby avoided switch main part 1 because of the problem of high temperature damage, and then improved switch main part 1's life.

Through the cooperation of slide 26 and cleaning brush board 28, promote slide 26 at gag lever post 23 and remove the in-process to wiring module 4 direction, make slide 26 drive cleaning brush board 28 and then remove, thereby make cleaning brush board 28 clean the dust on dust screen 52 surface, thereby avoided switch main part 1 to use the back for a long time, dust blocking dust screen 52, lead to the unable radiating problem of effectively carrying out of switch main part 1, and then improved switch main part 1's radiating effect.

Example 2

Referring to fig. 6-8, based on embodiment 1, in this embodiment, the auxiliary mechanism 6 includes a mechanism housing 61, the mechanism housing 61 is fixed at the bottom of the switch main body 1, the top of the mechanism housing 61 is penetrated and hinged with a plurality of turnover plates 62, the turnover plates 62 are uniformly distributed at the top of the mechanism housing 61, the left structure and the right structure of the top of the mechanism housing 61 are symmetrically arranged, the triangular block 27 is in contact with the top of the turnover plates 62, steel balls 65 are arranged inside the top of the turnover plates 62, one side of the turnover plates 62 far away from the dustproof mechanism 5 is connected with the mechanism housing 61 through elastic pieces 63, one side of the turnover plates 62 near the dustproof mechanism 5 is fixed with an elastic arc striking rod 64, and the elastic arc striking rod 64 is in contact with the convex ball block 55.

When in use, in the process that the plug rod 23 pushes the sliding plate 26 to move towards the wiring module 4, the sliding plate 26 drives the triangular block 27 to move along with the sliding plate, under the matching of the triangular block 27 and the turnover plate 62, the triangular block 27 is abutted against the turnover plate 62 and turned towards the direction far away from the dust screen 52, the turnover plate 62 drives the elastic arc knocking rod 64 to turn over, the elastic sheet 63 is compressed, when the triangular block 27 is not abutted against the turnover plate 62, the turnover plate 62 is reset under the elastic action of the elastic sheet 63, the turnover plate 62 drives the elastic arc knocking rod 64 to knock the fixed plate 54, the dust screen 52 is vibrated by the conduction of the elastic connecting plate 53, the dust screen 52 shakes off the dust attached to the dust screen 52, thereby further preventing the dust screen 52 from being blocked, and simultaneously, through the arrangement of the steel ball 65, under the action of inertia, the steel ball 65 drives the turnover plate 62 to swing, and the swing frequency of the turnover plate 62 is improved.

When the fixed empty ball 22 is cooled, the air inside the fixed empty ball 22 contracts, the gas in the fixed empty ball 22 drives the plug rod 23 to move upwards, the plug rod 23 drives the sliding plate 26 to move towards the direction away from the wiring module 4, the triangular block 27 is matched with the turnover plate 62, the triangular block 27 is enabled to abut against the turnover plate 62 to turn towards the direction close to the dustproof net 52, the elastic arc-shaped knocking rod 64 is matched with the convex ball block 55, the elastic arc-shaped knocking rod 64 is enabled to abut against the convex ball block 55, the fixed plate 54 is enabled to vibrate continuously, the dustproof net 52 is enabled to vibrate continuously and shake off fog attached to the dustproof net 52 under the conduction of the elastic connecting plate 53, and therefore the problem that the dustproof net 52 is corroded by fog when the fog is generated is avoided, and the service life of the dustproof net 52 is prolonged.

Through the cooperation of triangle piece 27 and returning face plate 62, promote slide 26 at gag lever post 23 and remove the in-process to 4 directions of wiring module, slide 26 drives triangle piece 27 and then removes, make triangle piece 27 conflict returning face plate 62 towards keeping away from the upset of dust screen 52 direction, returning face plate 62 drives elasticity arc and strikes pole 64 and with turning, shell fragment 63 is compressed, when triangle piece 27 does not contradict returning face plate 62, returning face plate 62 resets under shell fragment 63 spring action, returning face plate 62 drives elasticity arc and strikes pole 64 and strike fixed plate 54, under elasticity even board 53 conduction, make dust screen 52 and then vibrate, dust screen 52 shakes off the dust of attached to dust screen 52, thereby further prevent that dust screen 52 from blockking up.

Through the cooperation of triangle piece 27 and returning face plate 62, when fixed empty ball 22 cools off, the inside air of fixed empty ball 22 contracts, stopper rod 23 drives slide 26 and removes to keeping away from wiring module 4 direction, make triangle piece 27 conflict returning face plate 62 overturn towards being close to dust screen 52 direction, under elasticity arc strikes pole 64 and the cooperation of nose ball piece 55, make elasticity arc strike pole 64 conflict nose ball piece 55, make fixed plate 54 continuously vibrate, under elasticity even board 53 conduction, dust screen 52 is following continuously vibrating and is shaken off the fog attached to dust screen 52, thereby when having avoided the fog to produce, fog is attached to dust screen 52, lead to the problem that dust screen 52 is corroded by the fog, and then the life of dust screen 52 has been improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

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