Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a rain shelter for garden landscape with rainwater collection function, which can clear fallen leaves on a rainwater collection port by utilizing the gravity of rainwater in the process of rainwater collection through the matching of a cleaning mechanism, a collection mechanism and a reset mechanism, thereby improving the rainwater collection effect, when raining, rainwater on a rain shelter enters the interior of a collection box through a water inlet and falls into the interior of a water tank through a rainwater recovery hole, when more and more water is in the water tank, the water tank can descend, the water tank can drive a driving belt to move in the descending process, the driving belt can drive a driving wheel to rotate, the driving wheel drives a supporting shaft and a ratchet wheel to rotate, the ratchet wheel drives a chain wheel to rotate through a clamping block, thereby enabling a chain to drive the cleaning plate to move, sweeping the fallen leaves on a filter screen away, and enabling the fallen leaves to enter the interior of the collection box through a waste pipe for collection, the fallen leaves can not block the filter screen, and the rainwater collection effect is improved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a gardens view is with canopy with effect is collected to rainwater, includes the weather shield, the bottom fixed mounting of weather shield has first support column and second support column, the top fixed mounting of weather shield has the collecting box, the water inlet has been seted up to the bilateral symmetry of collecting box, the inside of collecting box is provided with clearance mechanism, the inside of first support column is provided with collects the mechanism, the inside of first support column and the bottom that is located collection mechanism are provided with canceling release mechanical system.
As the preferable rain shelter for garden landscape with rainwater collection function of the invention, the cleaning mechanism comprises a supporting shaft, a chain wheel, a ratchet wheel, a driving wheel, a chain, a cleaning plate, a driving belt, a connecting plate, a mounting block and a first tension spring, the two ends of the supporting shaft are rotationally connected with the inner side wall of the collecting box, the chain wheel is rotationally connected with the side surface of the supporting shaft, the ratchet wheel is fixedly connected with the side surface of the supporting shaft, the driving wheel is fixedly connected with the side surface of the supporting shaft, a chain is arranged on the side surface of the chain wheel, a plurality of cleaning plates are uniformly arranged on the side surface of the chain, the side surface of the driving wheel is provided with a driving belt, the connecting plate is fixedly arranged on the side surface of the supporting shaft, the mounting block is fixedly mounted on one side of the connecting plate, one end of the first tension spring is fixedly connected with the mounting block, and the other end of the first tension spring is fixedly connected with one end of the driving belt.
Preferably, the cleaning mechanism further comprises a clamping block, a first mounting column, a second mounting column, a third mounting column and a second tension spring, wherein the first mounting column is fixedly mounted on one side of the chain wheel, the clamping block is rotatably connected with the chain wheel through the first mounting column, the second mounting column is fixedly mounted on one side of the chain wheel, the third mounting column is fixedly mounted on one side of the clamping block, one end of the second tension spring is fixedly connected with the third mounting column, the other end of the second tension spring is fixedly connected with the second mounting column, and the clamping block is clamped with the side surface of the ratchet wheel.
Preferably, the rain shed for landscape architecture with rainwater collection function of the present invention, the collection mechanism comprises a collection pipe, a filter screen, a water tank, a fixed block, a sliding plate, mounting frames, a roller, a reset plate, a box door, a recovery bucket and a recovery pipe, wherein the top end of the collection pipe is fixedly connected with the collection box, the filter screen is fixedly mounted at the top end of the collection pipe, the water tank is arranged inside a first support column, the fixed block is fixedly mounted at one side of the water tank, the other end of the drive belt is fixedly connected with the top of the fixed block, two sliding plates are fixedly mounted at the inner side wall of the first support column and symmetrically arranged at two sides of the water tank, the two mounting frames are symmetrically mounted at two sides of the water tank, the roller is fixedly mounted inside the mounting frames, the roller is in contact with one side of the sliding plate, the reset plate is fixedly mounted at the inner side wall of the first support column, one side of water tank is rotated and is connected with the chamber door, the board that resets is located the upside of chamber door, recovery fill fixed mounting is in the inboard bottom of first support column, recovery tube fixed mounting is in the bottom of recovery fill, the bottom of collecting pipe is located the water tank directly over.
The preferred rain shelter for the garden landscape with the rainwater collection function comprises a locking plate, a reset strip, a first clamping groove, a second clamping groove, a mounting plate, an inclined plate and a control cavity, wherein the locking plate is fixedly mounted at the bottom of a box door, the control cavity is arranged inside the locking plate, the reset strip is movably connected inside the control cavity, the first clamping groove is formed in the bottom of one side of the water tank, the second clamping grooves are symmetrically formed in two sides of the first clamping groove, the locking plate is clamped with the first clamping groove, the mounting plate is fixedly mounted on the inner side wall of a first supporting column, and the inclined plate is fixedly mounted at the top of the mounting plate.
Preferably, the resetting mechanism further comprises first supports, second supports, clamping plates, slopes, upper pressing plates, lower pressing plates and springs, the two first supports are symmetrically arranged on two sides of the resetting strip, one end of each second support is hinged to one end of each first support, the clamping plates are hinged to the other end of each second support, the slopes are arranged on one sides of the clamping plates, the two upper pressing plates are symmetrically arranged on two sides of the resetting strip, the two lower pressing plates are symmetrically arranged on two sides of the inner portion of the control cavity, the springs are arranged between the upper pressing plates and the lower pressing plates, the clamping plates are movably connected with the locking plates, and one ends of the clamping plates are clamped with the second clamping grooves.
Preferably, the slope plate is positioned right below the restoration strip and is in contact with one end of the restoration strip.
Preferably, the rain shed for the garden landscape with the rainwater collection function is provided with a collection chamber inside, the bottom of the inner side of the collection chamber is arranged in an inclined manner, and the bottom of the lower cleaning plate is contacted with the bottom of the inner side of the collection chamber.
Preferably, the rain shed for landscape architecture with rainwater collection function of the present invention, the bottom of the inner side of the collection chamber is provided with a garbage recovery hole and a rainwater recovery hole, the top end of the collection pipe is located inside the rainwater recovery hole, and the driving belt is movably connected with the bottom of the collection box.
Preferably, the rain shed for the garden landscape with the rainwater collection function is provided with a recovery assembly inside, the recovery assembly comprises a waste pipe, a recovery box and a rotary door, the top end of the waste pipe is located inside the garbage recovery hole and fixedly connected with the collection box, the recovery box is arranged at the bottom of the inner side of the second support column, the rotary door is rotatably connected to the side surface of the second support column, and the bottom end of the waste pipe is located right above the recovery box.
Compared with the prior art, the invention has the beneficial effects that:
1. through the matching of the cleaning mechanism, the collecting mechanism and the reset mechanism, fallen leaves on the rainwater collecting port can be cleaned by utilizing the gravity of rainwater in the rainwater collecting process, the rainwater collecting effect is improved, and when raining, rainwater on the rain baffle enters the inside of the collecting tank through the water inlet and falls into the inside of the water tank through the rainwater recovery hole, when more and more water is in the water tank, the water tank can descend, the water tank can drive the driving belt to move in the descending process, the driving belt can drive the driving wheel to rotate, the driving wheel drives the supporting shaft and the ratchet wheel to rotate, the ratchet wheel drives the chain wheel to rotate through the clamping block, thereby make the chain drive the clearance board and remove, sweep away the fallen leaves on the filter screen, make the fallen leaves pass through the inside that the waste material pipe got into the collection box and collect, make the fallen leaves can not block up the filter screen, improve the collection effect of rainwater.
2. Through being provided with the recovery subassembly, can clear up the fallen leaves, through being provided with rubbish recovery hole, the cleaning plate can be swept away the fallen leaves on the filter screen, makes the fallen leaves get into the inside of waste pipe through rubbish recovery hole and collects, through being provided with the collection box, can concentrate rubbish and collect, through being provided with the rotating door, opens the rotating door and can be to the collection box to rubbish to the collection box clears up.
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.
Example 1:
as shown in fig. 1-10:
the utility model provides a landscape uses canopy with effect is collected to rainwater, includes weather shield 1, the bottom fixed mounting of weather shield 1 has first support column 11 and second support column 12, the top fixed mounting of weather shield 1 has collecting box 13, water inlet 15 has been seted up to the bilateral symmetry of collecting box 13, the inside of collecting box 13 is provided with clearance mechanism 2, the inside of first support column 11 is provided with collects mechanism 3, the inside of first support column 11 and the bottom that is located collection mechanism 3 are provided with canceling release mechanical system 4.
In this embodiment: through being provided with weather shield 1, can keep off the rain when raining, the top of weather shield 1 sets up for the slope, can collect the rainwater, through being provided with first support column 11 and second support column 12, be convenient for support weather shield 1, the rainwater is collected through the inside that water inlet 15 got into collecting box 13, through being provided with collecting box 13, be convenient for install collecting mechanism 3, through clearance mechanism 2, collecting mechanism 3 and canceling release mechanical system 4's cooperation, the gravity that can utilize the rainwater at the in-process that the rainwater was collected is cleared up the fallen leaves on the rainwater collection mouth, improve the collection effect of rainwater.
Based on the existing rain shed for garden landscapes with rainwater collection function, the invention can utilize the gravity of rainwater to clean fallen leaves on a rainwater collection port in the rainwater collection process through the matching of the cleaning mechanism 2, the collection mechanism 3 and the reset mechanism 4, so as to improve the rainwater collection effect, when raining, rainwater on the rain shield 1 enters the interior of the collection box 13 through the water inlet 15 and falls into the interior of the water tank 33 through the rainwater recovery hole 18, when more and more water is in the water tank 33, the water tank 33 descends, the water tank 33 drives the driving belt 27 to move in the descending process, the driving belt 27 drives the driving wheel 24 to rotate, the driving wheel 24 drives the supporting shaft 21 and the ratchet wheel 23 to rotate, the ratchet wheel 23 drives the chain wheel 22 to rotate through the fixture block 211, so that the chain 25 drives the cleaning plate 26 to move, and the fallen leaves on the filter screen 32 are swept away, fallen leaves are collected through the waste pipe 51 and the recovery box 52, so that the fallen leaves cannot block the filter screen 32, and the rainwater collection effect is improved.
As shown in fig. 1, 2, 3, 4, 5 and 6;
in combination with the above, the cleaning mechanism 2 includes a supporting shaft 21, a sprocket 22, a ratchet wheel 23, a driving wheel 24, a chain 25, a cleaning plate 26, a driving belt 27, a connecting plate 28, a mounting block 29, a first tension spring 210, a clamping block 211, a first mounting column 212, a second mounting column 213, a third mounting column 214 and a second tension spring 215, two ends of the supporting shaft 21 are rotatably connected with the inner side wall of the collecting box 13, the sprocket 22 is rotatably connected with the side surface of the supporting shaft 21, the ratchet wheel 23 is fixedly connected with the side surface of the supporting shaft 21, the driving wheel 24 is fixedly connected with the side surface of the supporting shaft 21, the chain 25 is arranged on the side surface of the sprocket 22, a plurality of cleaning plates 26 are uniformly arranged on the side surface of the chain 25, the driving belt 27 is arranged on the side surface of the driving wheel 24, the connecting plate 28 is fixedly mounted on the side surface of the supporting shaft 21, the mounting block 29 is fixedly mounted on one side of the connecting plate 28, one end of the first tension spring 210 is fixedly connected with the mounting block 29, the other end is fixedly connected with one end of the driving belt 27, the first mounting column 212 is fixedly mounted on one side of the chain wheel 22, the fixture block 211 is rotatably connected with the chain wheel 22 through the first mounting column 212, the second mounting column 213 is fixedly mounted on one side of the chain wheel 22, the third mounting column 214 is fixedly mounted on one side of the fixture block 211, one end of the second tension spring 215 is fixedly connected with the third mounting column 214, the other end is fixedly connected with the second mounting column 213, and the fixture block 211 is clamped with the side surface of the ratchet wheel 23.
In this embodiment: by arranging the supporting shaft 21, the chain wheel 22, the ratchet wheel 23 and the driving wheel 24 are convenient to install, rainwater on the rain baffle plate 1 enters the inside of the collecting box 13 through the water inlet 15 and falls into the inside of the water tank 33 through the rainwater recovery hole 18, when more and more water is in the water tank 33, the water tank 33 descends, the water tank 33 drives the driving belt 27 to move in the descending process, the driving belt 27 drives the driving wheel 24 to rotate in the moving process, the driving wheel 24 drives the supporting shaft 21 and the ratchet wheel 23 to rotate, the ratchet wheel 23 drives the chain wheel 22 to rotate through the fixture block 211 when rotating, so that the chain 25 drives the cleaning plate 26 to move, the bottom of the lower cleaning plate 26 is in contact with the bottom of the inner side of the collecting cavity 16, fallen leaves on the filter screen 32 can be swept away, the fallen leaves enter the recovering box 52 through the waste pipe 51 to be collected, the water in the water tank 33 can flow out, and then the water tank 33 can reset under the action of the first tension spring 210, the driving belt 27 can drive the driving wheel 24 to rotate reversely, the driving wheel 24 drives the supporting shaft 21 and the ratchet wheel 23 to rotate reversely, when the ratchet wheel 23 rotates reversely, the clamping block 211 cannot drive the chain wheel 22 to rotate, the cleaning plate 26 only can rotate along one direction, fallen leaves on a rainwater collecting port can be cleaned conveniently, the rainwater collecting effect is improved, and the clamping block 211 can be always attached to the ratchet wheel 23 through the second tension spring 215.
As shown in fig. 1, 2, 3, 7, 8 and 9;
in combination with the above, the collecting mechanism 3 includes a collecting pipe 31, a filter screen 32, a water tank 33, a fixed block 34, sliding plates 35, a mounting frame 36, rollers 37, a reset plate 38, a box door 39, a collecting hopper 310 and a collecting pipe 311, the top end of the collecting pipe 31 is fixedly connected with the collecting tank 13, the filter screen 32 is fixedly mounted on the top end of the collecting pipe 31, the water tank 33 is disposed inside the first support column 11, the fixed block 34 is fixedly mounted on one side of the water tank 33, the other end of the driving belt 27 is fixedly connected with the top of the fixed block 34, two sliding plates 35 are fixedly mounted on the inner side wall of the first support column 11 and symmetrically disposed on both sides of the water tank 33, two mounting frames 36 are symmetrically mounted on both sides of the water tank 33, the rollers 37 are fixedly mounted inside the mounting frames 36, the rollers 37 are in contact with one side of the sliding plates 35, the reset plate 38 is fixedly mounted on the inner side wall of the first support column 11, one side of the water tank 33 is rotatably connected with a tank door 39, the reset plate 38 is positioned on the upper side of the tank door 39, the recovery bucket 310 is fixedly arranged at the bottom of the inner side of the first support column 11, the recovery pipe 311 is fixedly arranged at the bottom of the recovery bucket 310, the bottom end of the collection pipe 31 is positioned right above the water tank 33, and the water tank 33 is positioned right above the recovery bucket 310.
In this embodiment: rainwater on the rain shielding plate 1 enters the inside of the collecting box 13 through the water inlet 15 and falls into the inside of the water tank 33 through the rainwater recovery hole 18, when more and more water is in the water tank 33, the water tank 33 descends, rainwater can conveniently enter the inside of the water tank 33 through the collecting pipe 31, fallen leaves can be intercepted through the filtering net 32, the fallen leaves are prevented from entering the collecting pipe 31 and can be conveniently cleaned by the cleaning plate 26, the water tank 33 can be kept stable in the ascending process through the sliding plate 35 and the rolling wheel 37, the falling leaves cannot shake in the first supporting column 11, the water tank 33 can be reset under the action of the first tension spring 210 after the water in the water tank 33 flows out through the resetting plate 38, when the water tank 33 moves to the upper side, the box door 39 can be reset through the resetting plate 38, the bottom of the water tank 33 cannot leak water through the box door 39, when the water tank 33 descends to a certain position, the reset strip 42 arranged inside the locking plate 41 contacts with the inclined plate 46, the reset strip 42 moves upwards, the clamping plate 410 is separated from the second clamping groove 44, the box door 39 is opened, water in the water tank 33 flows out, rainwater can be collected by arranging the recovery hopper 310 and the recovery pipe 311, the recovery pipe 311 is connected with an underground drainage pipe, and the rainwater is recycled through the underground drainage pipe.
As shown in fig. 1, 2, 7, 8, 9 and 10;
in combination with the above, the resetting mechanism 4 includes a locking plate 41, a resetting bar 42, a first slot 43, a second slot 44, a mounting plate 45, an inclined plate 46, a control cavity 47, a first bracket 48, a second bracket 49, a clamping plate 410, a slope 411, an upper press plate 412, a lower press plate 413 and a spring 414, the locking plate 41 is fixedly mounted at the bottom of the box door 39, the control cavity 47 is arranged inside the locking plate 41, the resetting bar 42 is movably connected inside the control cavity 47, the first slot 43 is arranged at the bottom of one side of the water tank 33, the second slots 44 are symmetrically arranged at two sides of the first slot 43, the locking plate 41 is clamped with the first slot 43, the mounting plate 45 is fixedly mounted on the inner side wall of the first supporting column 11, the inclined plate 46 is fixedly mounted at the top of the mounting plate 45, the two first brackets 48 are symmetrically mounted at two sides of the resetting bar 42, one end of the second bracket 49 is hinged with one end of the first bracket 48, cardboard 410 is articulated with the other end of second support 49, and one side of cardboard 410 is provided with slope 411, and two top board 412 symmetries are installed in the both sides that reset strip 42, and two holding down plate 413 symmetries are installed in the inside both sides of control chamber 47, all are provided with spring 414 between top board 412 and the holding down plate 413, cardboard 410 and locking plate 41 swing joint, the one end and the second draw-in groove 44 looks block of cardboard 410.
In this embodiment: when the water tank 33 descends to a certain position, the reset bar 42 installed inside the locking plate 41 contacts with the inclined plate 46, so that the reset bar 42 moves upwards, the reset bar 42 drives the first bracket 48 to move upwards in the upward process, the first bracket 48 drives the clamping plate 410 to slide inwards through the second bracket 49 in the upward moving process, so that the clamping plate 410 leaves the second clamping groove 44, the tank door 39 is opened, water inside the tank door 39 is discharged, the water tank 33 returns under the action of the first tension spring 210 after the water in the water tank 33 flows out, when the water tank 33 moves upwards, the tank door 39 can be pressed through the reset plate 38, one side of the clamping plate 410 is provided with a slope 411, when the tank door 39 is pressed, the clamping plate 410 moves inwards under the action of the slope 411, so that the tank door 39 is clamped with the water tank 33, the clamping plate 410 is clamped with the second clamping groove 44 under the action of the spring 414, thereby locking the door 39 so that the water tank 33 does not leak water.
As shown in fig. 1, 2, 7, 8, 9 and 10;
in conjunction with the above, the sloping plate 46 is located directly below the reset bar 42 and contacts one end of the reset bar 42.
In this embodiment: when the water tank 33 descends to a certain position, the reset bar 42 installed inside the locking plate 41 contacts with the inclined plate 46, so that the reset bar 42 moves upwards, the reset bar 42 drives the first bracket 48 to move upwards in the upward process, and the first bracket 48 drives the clamping plate 410 to slide inwards through the second bracket 49 in the upward moving process, so that the clamping plate 410 leaves the second clamping groove 44, the box door 39 is opened, and water inside the box door 39 is discharged.
As shown in fig. 1, 2, 3 and 4;
in combination with the above, the inner bottom of the collection chamber 16 is inclined, and the bottom of the lower cleaning plate 26 is in contact with the inner bottom of the collection chamber 16.
In this embodiment: the inboard bottom of collecting chamber 16 is the slope setting, makes the inside water of collecting chamber 16 can flow into the inside of rainwater recovery hole 18, and the bottom of downside cleaning plate 26 contacts with the inboard bottom of collecting chamber 16, can sweep the fallen leaves on the filter screen 32, makes the fallen leaves get into collection box 52 portion through waste pipe 51 and collects.
As shown in fig. 1, 2, 3 and 7;
in combination with the above, the collecting box 13 is provided with a collecting cavity 16 inside, the bottom of the inner side of the collecting cavity 16 is provided with a garbage recycling hole 17 and a rainwater recycling hole 18, the top end of the collecting pipe 31 is located inside the rainwater recycling hole 18, and the driving belt 27 is movably connected with the bottom of the collecting box 13.
In this embodiment: by providing the waste recycling holes 17, the cleaning plate 26 will sweep away the fallen leaves on the filter screen 32, so that the fallen leaves will enter the waste pipe 51 through the waste recycling holes 17 for collection.
As shown in fig. 1 and 2;
in combination with the above, the recycling assembly 5 is disposed inside the second supporting column 12, the recycling assembly 5 includes a waste pipe 51, a recycling bin 52 and a rotating door 53, the top end of the waste pipe 51 is located inside the waste recycling hole 17 and is fixedly connected to the collecting bin 13, the recycling bin 52 is disposed at the bottom of the inner side of the second supporting column 12, the rotating door 53 is rotatably connected to the side surface of the second supporting column 12, and the bottom end of the waste pipe 51 is located right above the recycling bin 52.
In this embodiment: through being provided with recovery unit 5, can clear up the fallen leaves, through being provided with rubbish recovery hole 17, clearance board 26 can sweep away the fallen leaves on the filter screen 32, makes the fallen leaves collect through the inside that rubbish recovery hole 17 got into waste pipe 51, through being provided with collection box 52, can concentrate rubbish and collect, through being provided with revolving door 53, opens revolving door 53 and can be to collection box 52 to the rubbish to collection box 52 clears up.
As shown in fig. 1 and 2;
in combination with the above, the top of the rain shield 1 is fixedly provided with a baffle 14, and one side of the baffle 14 is fixedly connected with the collection box 13.
In this embodiment: baffle 14 has a plurality ofly, and is located the bilateral symmetry setting of weather shield 1, through being provided with baffle 14, can improve the collection effect of rainwater, makes the rainwater can not leave from the both sides of weather shield 1.
The working principle is as follows: when raining, rainwater on the rain shield 1 enters the collecting box 13 through the water inlet 15 and falls into the water tank 33 through the rainwater recovery hole 18, when more and more water is in the water tank 33, the water tank 33 descends, the water tank 33 drives the driving belt 27 to move in the descending process, the driving belt 27 drives the driving wheel 24 to rotate, the driving wheel 24 drives the supporting shaft 21 and the ratchet wheel 23 to rotate, the ratchet wheel 23 drives the chain wheel 22 to rotate through the fixture block 211, so that the chain 25 drives the cleaning plate 26 to move, fallen leaves on the filter screen 32 are swept away, the fallen leaves are collected through the waste pipe 51 and the collecting box 52, when the water tank 33 descends to a certain position, the reset strip 42 arranged inside the locking plate 41 contacts with the inclined plate 46, the reset strip 42 moves upwards, and the reset strip 42 drives the first bracket 48 to move upwards in the upwards process, the first bracket 48 drives the clamping plate 410 to slide inwards through the second bracket 49 in the upward moving process, so that the clamping plate 410 is separated from the second clamping groove 44, the door 39 is opened, water in the door 39 is drained, rainwater is collected through the recovery bucket 310 and the recovery pipe 311, the water in the water tank 33 flows out, the water tank 33 is reset under the action of the first tension spring 210, when the water tank 33 moves to the upper side, the door 39 can be extruded through the reset plate 38, one side of the clamping plate 410 is provided with a slope 411, when the door 39 is extruded, the clamping plate 410 moves inwards under the action of the slope 411, so that the door 39 is clamped with the water tank 33, the clamping plate 410 is clamped with the second clamping groove 44 under the action of the spring 414, the door 39 is clamped, the water tank 33 cannot leak, and when the water tank 33 is reset under the action of the first tension spring 210, the driving belt 27 can drive the driving wheel 24 to rotate reversely, the driving wheel 24 drives the supporting shaft 21 and the ratchet wheel 23 to rotate reversely, when the ratchet wheel 23 rotates reversely, the clamping block 211 cannot drive the chain wheel 22 to rotate, the cleaning plate 26 only can rotate along one direction, fallen leaves on the rainwater collecting port can be cleaned conveniently, and the rainwater collecting effect is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.