阅读说明：本技术 一种可调式家用儿童游泳池 (Adjustable household swimming pool for children ) 是由 戴忠 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种可调式家用儿童游泳池,包括：底座,所述底座的底部设置有垫块且垫块呈圆柱形结构设置,所述底座的内部设置有安装槽且安装槽的内部两侧设置有活动轴,所述活动轴的表面设置有活动板且活动板通过活动轴与安装槽之间转动连接,所述活动板的两端内部均设置有卡槽且卡槽的内部安装有卡板,所述卡板的表面设置有升降机构且升降机构的表面设置有连接块。本发明所设计的游泳池为可拆卸结构,其活动板通过活动轴与底座内部的凹槽之间转动连接,同时卡板与活动板之间卡接,并通过密封垫进行密封,保证其密封性,不使用时可以拆卸并折叠收纳,从而减少占地面积。(The invention discloses an adjustable domestic swimming pool for children, which comprises: the base, the bottom of base is provided with cushion and is the setting of cylindrical structure, the inside both sides that the inside of base was provided with mounting groove and mounting groove are provided with the loose axle, the surface of loose axle is provided with fly leaf and passes through to rotate between loose axle and the mounting groove to be connected, the inside internally mounted that all is provided with draw-in groove and draw-in groove in the both ends of fly leaf has the cardboard, the surface of cardboard is provided with elevating system and elevating system's surface and is provided with the connecting block. The swimming pool designed by the invention is of a detachable structure, the movable plate is rotatably connected with the groove in the base through the movable shaft, the clamping plate is clamped with the movable plate and sealed through the sealing gasket, the sealing property of the swimming pool is ensured, and the swimming pool can be detached, folded and stored when not in use, so that the floor area is reduced.)

1. An adjustable domestic swimming pool for children, which is characterized in that: the method comprises the following steps: base (1), the bottom of base (1) is provided with cushion (8) and is the setting of cylindrical structure, the inside both sides that the inside of base (1) was provided with mounting groove (2) and mounting groove (2) are provided with loose axle (34), the surface of loose axle (34) is provided with fly leaf (3) and rotates between loose axle (34) and mounting groove (2) to be connected, the inside internally mounted that all is provided with draw-in groove (33) and draw-in groove (33) in both ends of fly leaf (3) has cardboard (4), the surface that the surface of cardboard (4) is provided with elevating system (5) and elevating system (5) is provided with connecting block (31), the inside of connecting block (31) is provided with mounting hole (32) and cup joints at elevating system (5) surface, the side of connecting block (31) is provided with buffer board (20) and moves from top to bottom through elevating system (5) and from top to bottom Move, the inside that the bottom of base (1) was provided with heating groove (9) and heating groove (9) is provided with electric heater (13), the output of electric heater (13) is provided with electric heating wire (14) and is the setting of U type structure and is the snakelike structure and distributes, the top of heating groove (9) is provided with and contacts each other between heat-conducting plate (37) and electric heating wire (14), the side of fly leaf (3) is provided with the side that connects (6) and connect (6) and is provided with retaining member (7), retaining member (7) and connect threaded connection between (6).

2. The adjustable domestic swimming pool for children according to claim 1, wherein: the inside of heating groove (9) is provided with installation piece (10) and the inside of installation piece (10) is provided with the screw hole, the outside of heating groove (9) is provided with bottom plate (11) and gomphosis each other between bottom plate (11) and heating groove (9), the inside of bottom plate (11) is provided with between fixing bolt (12) and the installation piece (10) and is connected.

3. The adjustable domestic swimming pool for children according to claim 1, wherein: elevating system (5) include that two sets of fixed blocks (15) and two sets of fixed blocks (15) install on the surface of cardboard (4), the top that is provided with screw rod (16) and screw rod (16) between fixed block (15) is provided with rocker (17), threaded connection and the bottom of screw rod (16) are provided with regulating block (19) between connecting block (31) and screw rod (16), threaded connection and the upper portion of regulating block (19) are provided with cushion column (18) between regulating block (19) and screw rod (16), cushion column (18) cup joint screw rod (16) surface and with connecting block (31) between the mutual contact.

4. The adjustable domestic swimming pool for children according to claim 1, wherein: the surface of the buffer plate (20) is provided with a plurality of groups of filter tanks (30), and the filter tanks (30) are arranged in a strip structure and distributed at equal intervals.

5. The adjustable domestic swimming pool for children according to claim 1, wherein: the connector (6) comprises a fixed seat (21) and a threaded column (22) is arranged on the side face of the fixed seat (21), the locking piece (7) comprises a fixed sleeve (24) and a connecting column (25) is arranged inside the fixed sleeve (24), and the connecting column (25) is inserted into the threaded column (22) and is in threaded connection with the fixed sleeve (24) and the threaded column (22).

6. An adjustable domestic swimming pool for children according to claim 5, wherein: the surface of screw thread post (22) is provided with equidistant distribution between bar groove (23) and bar groove (23), the side of fixed sleeving (24) be provided with knob (26) and knob (26) be the hexagon structure setting and with fixed sleeving (24) between fixed connection.

7. An adjustable domestic swimming pool for children according to claim 5, wherein: the side of joint (6) is provided with bayonet socket (27) and inside bayonet socket (27) intercommunication fly leaf (3), the inside of bayonet socket (27) is provided with mutual gomphosis between ball valve (29) and bayonet socket (27), the side of ball valve (29) is provided with spring post (28) and ball valve (29) and passes through telescopic connection between spring post (28) and bayonet socket (27).

8. The adjustable domestic swimming pool for children according to claim 1, wherein: the inside of draw-in groove (33) is provided with elasticity piece (35) and be half arc structure setting and with cardboard (4) between mutual contact, be provided with sealed pad (36) in the gap between draw-in groove (33) and cardboard (4).

Technical Field

The invention relates to the technical field of child swimming pools, in particular to an adjustable household child swimming pool.

Background

Swimming (Swimming) is a skill in which a person floats upwards under the buoyancy of water, and the body regularly moves in the water through limbs by virtue of the buoyancy.

In the 60 s of the 17 th century, swimming activities were carried out quite actively in many areas of the uk. In 1828, the first indoor swimming pool built in the uk at the george quay of lijps, which appeared successively in the cities of the uk by the 30's of the 19 th century. In 1837, the first swimming organization was established in london, the uk, with the earliest swimming contest in the uk. In 1896, swimming was listed as an Olympic Games event.

The highest organization of swimming is the international union of swimming, headquarters in loser, switzerland. In 1908 a initiative was made by Belgian, Denmark, Finland, France, Germany, the United kingdom, Hungary and the Swedish society for swimming.

At present, the existing household swimming pool for children is fixed in structure, mostly does not have an adjusting function, and meanwhile, the water temperature is difficult to control. Therefore, a new technical solution needs to be provided.

Disclosure of Invention

The invention aims to provide an adjustable household swimming pool for children, and solves the problems that the existing household swimming pool for children is fixed in structure, does not have an adjusting function and is difficult to control water temperature.

In order to achieve the purpose, the invention provides the following technical scheme: an adjustable domestic swimming pool for children, comprising: the base is provided with a cushion block at the bottom of the base, the cushion block is arranged in a cylindrical structure, a mounting groove is arranged in the base, movable shafts are arranged on two sides of the inside of the mounting groove, a movable plate is arranged on the surface of each movable shaft and is rotatably connected with the mounting groove through the movable shaft, clamping grooves are formed in two ends of the movable plate, clamping plates are arranged in the clamping grooves, a lifting mechanism is arranged on the surface of each clamping plate, a connecting block is arranged on the surface of each lifting mechanism, a mounting hole is formed in the inner part of each connecting block and is sleeved on the surface of the lifting mechanism, a buffer plate is arranged on the side surface of each connecting block and moves up and down through the lifting mechanism, a heating groove is formed in the bottom of the base, an electric heater is arranged in the heating groove, electric heating wires are arranged at the output end of the electric heater, are arranged in a U-shaped structure and are distributed in a snake-shaped structure, the top of heating groove is provided with and contacts each other between heat-conducting plate and the electric heating wire, the side that the side of fly leaf was provided with the joint and connects is provided with the retaining member, threaded connection between retaining member and the joint.

In a preferred embodiment of the present invention, the heating tank is provided with a mounting block inside and a screw hole inside, the heating tank is provided with a bottom plate outside and the bottom plate and the heating tank are engaged with each other, and the bottom plate is provided with a fixing bolt inside and the fixing bolt is connected to the mounting block.

As a preferred embodiment of the invention, the lifting mechanism comprises two groups of fixed blocks, the two groups of fixed blocks are arranged on the surface of the clamping plate, a screw is arranged between the fixed blocks, a rocker is arranged at the top of the screw, the connecting block is in threaded connection with the screw, an adjusting block is arranged at the bottom of the screw, the adjusting block is in threaded connection with the screw, a buffer column is arranged at the upper part of the adjusting block, and the buffer column is sleeved on the surface of the screw and is in contact with the connecting block.

As a preferred embodiment of the present invention, the surface of the buffer plate is provided with a plurality of sets of filter tanks, and the filter tanks are arranged in a strip structure and are distributed at equal intervals.

As a preferred embodiment of the present invention, the joint includes a fixed seat and a threaded column is disposed on a side surface of the fixed seat, the locking member includes a fixed sleeve and a connecting column is disposed inside the fixed sleeve, the connecting column is inserted into the threaded column and the fixed sleeve is in threaded connection with the threaded column.

As a preferred embodiment of the present invention, the threaded column has strip-shaped grooves formed in the surface thereof, the strip-shaped grooves are equidistantly distributed, and the fixing sleeve has a knob formed in the side surface thereof, the knob being disposed in a hexagonal structure and fixedly connected to the fixing sleeve.

As a preferred embodiment of the present invention, a bayonet is disposed on a side surface of the joint and communicates with an inside of the movable plate, a ball valve is disposed in the bayonet and is engaged with the bayonet, and a spring post is disposed on a side surface of the ball valve and is telescopically connected to the bayonet through the spring post.

As a preferred embodiment of the present invention, an elastic block is disposed inside the slot and is in a semi-arc structure and is in contact with the clamping plate, and a sealing pad is disposed in a gap between the slot and the clamping plate.

Compared with the prior art, the invention has the following beneficial effects:

(1) the swimming pool designed by the invention is of a detachable structure, the movable plate is rotatably connected with the groove in the base through the movable shaft, the clamping plate is clamped with the movable plate and sealed through the sealing gasket, the sealing property of the swimming pool is ensured, and the swimming pool can be detached, folded and stored when not in use, so that the floor area is reduced.

(2) The heating groove is formed in the bottom of the base, the electric heater is installed in the heating groove, the electric heating wires are arranged at the output end of the electric heater, the electric heating wires are arranged in a U-shaped structure and distributed in a snake shape, the contact area is increased, the heating effect is improved, meanwhile, the heat can be uniformly distributed by the heat conducting plate on the upper portion of the electric heater, overheating is avoided, the water temperature can be adjusted through the arrangement, and the use is convenient.

(3) The invention is provided with a lifting mechanism on the surface of a clamping plate, the lifting mechanism comprises fixed blocks arranged on the surface of the clamping plate, a screw rod is arranged between the fixed blocks, a rocker is arranged at the top of the screw rod to facilitate the manual rotation of the screw rod, an adjusting block is arranged on the surface of the screw rod and is in threaded connection with the screw rod, meanwhile, the upper part of the adjusting block is provided with a buffer column which is sleeved on the surface of the screw rod, a connecting block is arranged on the surface of the screw rod, the connecting block is in sliding connection with the screw rod and is in mutual contact with the buffer column, a movable plate is arranged on the side surface of the connecting block and is fixedly connected with the connecting block, the arrangement can lead the movable plate to slide up and down, can effectively reduce the direct contact of children with a bottom heat conducting plate, thereby avoiding scalding, and simultaneously, the height of the movable plate is adjusted, thereby leading the children to adapt to the swimming height, the surface of the movable plate is provided with a filter tank, the trash can salvage bottom sundries, and meanwhile, part of dirt can be filtered when water enters.

(4) The connector is arranged on the side face of the movable plate and comprises a fixed seat, the threaded column is arranged on the side face of the fixed seat, the fixed sleeve is arranged on the surface of the threaded column, the fixed sleeve is arranged inside the fixed sleeve when the connector is used, then the fixed sleeve is inserted into the surface of the threaded column and rotates to enable the threaded column and the connector to be fixed, the connector is convenient to connect with a pipeline and store water, meanwhile, a bayonet is arranged inside the connector, a ball valve is arranged inside the bayonet, the spring column is arranged on the side face of the ball valve, when the connector is connected into the pipeline to store water, the ball valve moves towards the side face under the action of pressure, the bayonet is opened to enable water to enter, when the water storage is stopped, the ball valve blocks the bayonet, the water flow is prevented from flowing out, a one-way valve structure is formed, and the connector is convenient to use.

Drawings

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

FIG. 2 is a schematic view of the overall bottom structure of the present invention;

FIG. 3 is a schematic view of a heating bath according to the present invention;

FIG. 4 is a schematic structural diagram of the lifting mechanism of the present invention;

FIG. 5 is a schematic view of the construction of the fitting and retaining member of the present invention;

FIG. 6 is a schematic view of the internal structure of the joint of the present invention;

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

FIG. 8 is a schematic view of the movable plate mounting structure of the present invention;

FIG. 9 is an enlarged view of part A of the present invention.

In the figure, 1, a base; 2. mounting grooves; 3. a movable plate; 4. clamping a plate; 5. a lifting mechanism; 6. a joint; 7. a locking member; 8. cushion blocks; 9. a heating tank; 10. mounting blocks; 11. a base plate; 12. fixing the bolt; 13. an electric heater; 14. an electric heating wire; 15. a fixed block; 16. a screw; 17. a rocker; 18. a buffer column; 19. an adjusting block; 20. a buffer plate; 21. a fixed seat; 22. a threaded post; 23. a strip-shaped groove; 24. fixing the sleeve; 25. connecting columns; 26. a knob; 27. a bayonet; 28. a spring post; 29. a ball valve; 30. a filter tank; 31. connecting blocks; 32. mounting holes; 33. a card slot; 34. a movable shaft; 35. an elastic block; 36. a gasket; 37. a heat conducting plate.

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: referring to fig. 1-4, the present invention provides a technical solution: an adjustable domestic swimming pool for children, comprising: the base comprises a base 1, wherein a cushion block 8 is arranged at the bottom of the base 1, the cushion block 8 is arranged in a cylindrical structure, a mounting groove 2 is arranged in the base 1, movable shafts 34 are arranged on two sides in the mounting groove 2, a movable plate 3 is arranged on the surface of each movable shaft 34, the movable plate 3 is rotatably connected with the mounting groove 2 through the movable shaft 34, clamping grooves 33 are formed in two ends of the movable plate 3, clamping plates 4 are arranged in the clamping grooves 33, a lifting mechanism 5 is arranged on the surface of each clamping plate 4, a connecting block 31 is arranged on the surface of each lifting mechanism 5, a mounting hole 32 is formed in the connecting block 31, the mounting hole 32 is sleeved on the surface of each lifting mechanism 5, a buffer plate 20 is arranged on the side surface of each connecting block 31, the buffer plate 20 moves up and down through the lifting mechanism 5, a heating groove 9 is arranged at the bottom of the base 1, and an electric heater 13 is arranged in the heating groove 9, the swimming pool is of a detachable structure, the movable plate 3 of the swimming pool is rotatably connected with a groove in the base 1 through a movable shaft 34, meanwhile, the clamping plate 4 is connected with the movable plate 3 through a sealing gasket 36, the sealing performance of the swimming pool is guaranteed, the swimming pool can be detached and folded for storage when not in use, the floor area is reduced, the heating groove 9 is arranged at the bottom of the base 1, the electric heater 13 is arranged in the heating groove 9, the output end of the electric heater 13 is provided with the electric heating wire 14, the electric heating wire 14 is arranged in a U-shaped structure, and the electric heating wire 14 is distributed in a snake-shaped structure Cloth, when having increased area of contact, improved the heating effect, heat-conducting plate 37 on its upper portion can avoid overheated with heat evenly distributed simultaneously, and the temperature can be adjusted in this kind of setting, convenient to use.

In a further improvement, as shown in fig. 3: the inside that adds hot groove 9 is provided with installation piece 10 and installation piece 10 is provided with the screw hole, the outside that adds hot groove 9 is provided with bottom plate 11 and adds between the hot groove 9 gomphosis each other, the inside of bottom plate 11 is provided with between fixing bolt 12 and the installation piece 10 and is connected, and bottom plate 11 is connected between through fixing bolt 12 and installation piece 10, conveniently installs the dismantlement.

Example 2: the technical solution of this embodiment is a lifting mechanism 5 installed on the surface of the card board 4, as shown in fig. 4: the lifting mechanism 5 comprises two groups of fixed blocks 15, the two groups of fixed blocks 15 are arranged on the surface of the clamping plate 4, a screw 16 is arranged between the fixed blocks 15, a rocker 17 is arranged at the top of the screw 16, the connecting block 31 is in threaded connection with the screw 16, an adjusting block 19 is arranged at the bottom of the screw 16, the adjusting block 19 is in threaded connection with the screw 16, a buffering column 18 is arranged at the upper part of the adjusting block 19, the buffering column 18 is sleeved on the surface of the screw 16 and is in mutual contact with the connecting block 31, the lifting mechanism 5 is arranged on the surface of the clamping plate 4, the lifting mechanism 5 comprises the fixed blocks 15 arranged on the surface of the clamping plate 4, the screw 16 is arranged between the fixed blocks 15, the rocker 17 is arranged at the top of the screw 16 to facilitate manual rotation of the screw 16, the adjusting block 19 is arranged on the surface of the screw 16, the adjusting block 19 is in threaded connection with the screw 16, and the buffering column 18 is arranged at the upper part of the adjusting block 19 and is sleeved on the surface of the screw 16, be provided with connecting block 31 and sliding connection between connecting block 31 and the screw rod 16 and with buffer column 18 between the mutual contact, be provided with movable plate 3 and fixed connection between movable plate 3 and the connecting block 31 in the side of connecting block 31, this kind of setting can make the movable plate slide from top to bottom, can effectively reduce children and directly contact with bottom heat-conducting plate 37, thereby avoid scalding, adjust the height of movable plate 3 simultaneously, thereby make children adapt to the height of swimming, be provided with filter tank 30 on the surface of movable plate 3, it can salvage bottom debris, can filter some dirt when intaking simultaneously.

Further improved, as shown in fig. 7: the surface of the buffer board 20 is provided with a plurality of groups of filter tanks 30, the filter tanks 30 are arranged in a strip structure and distributed at equal intervals, dirt in partial water inlet can be filtered through dust filtration, and meanwhile, the dust filtration device can be driven to ascend through the lifting mechanism 5 to salvage objects at the bottom of the water.

Example 3: the technical solution of the present embodiment is a joint 6 mounted on the surface of the movable plate 3, as shown in fig. 5: the side that connects 6 including fixing base 21 and fixing base 21 is provided with screw thread post 22, retaining member 7 includes that fixing sleeve 24 and fixing sleeve 24's inside is provided with spliced pole 25, spliced pole 25 is pegged graft at screw thread post 22 inside and threaded connection between fixing sleeve 24 and the screw thread post 22, be provided with in the side of fly leaf 3 and connect 6 including fixing base 21, the surface mounting that is provided with screw thread post 22 and screw thread post 22 in the side of fixing base 21 has fixing sleeve 24, install fixing sleeve 24 inside fixing sleeve 24 during the use, then peg graft fixing sleeve 24 at screw thread post 22 surface and rotatory, make it and connect between 6 fixedly, this kind sets up the connection that makes things convenient for the pipeline, conveniently impounds.

Further improved, as shown in fig. 5: the surface of threaded column 22 is provided with equidistant distribution between bar groove 23 and the bar groove 23, the side of fixation sleeve 24 be provided with knob 26 and knob 26 be the hexagon structure setting and with fixation sleeve 24 between fixed connection, bar groove 23 set up make things convenient for threaded column 22 to take place deformation to guarantee the stability of centre gripping, hexagonal knob 26 makes things convenient for fixation sleeve 24 to rotate simultaneously.

Further improved, as shown in fig. 6: the side of joint 6 is provided with bayonet 27 and bayonet 27 inside the intercommunication fly leaf 3, bayonet 27's inside is provided with ball valve 29 and mutual gomphosis between ball valve 29 and the bayonet 27, ball valve 29's side is provided with spring post 28 and ball valve 29 and passes through telescopic connection between spring post 28 and the bayonet 27, and the inside that connects 6 is provided with bayonet 27 and bayonet 27 is provided with ball valve 29, and ball valve 29's side is provided with spring post 28, because pressure action when inserting the pipeline and retaining, ball valve 29 moves to the side to open bayonet 27 and make rivers get into, ball valve 29 then shutoff bayonet 27 when stopping retaining, avoids rivers to flow out, forms the check valve structure, convenient to use.

Further improved, as shown in fig. 9: the inside of draw-in groove 33 is provided with elastic block 35 and is half arc structure setting and with cardboard 4 between the mutual contact, be provided with sealed 36 in the gap between draw-in groove 33 and the cardboard 4, the stability of cardboard 4 installation has been guaranteed in the setting of elastic block 35, and its leakproofness has been guaranteed in the setting of the sealed 36 of cooperation simultaneously.

The swimming pool designed by the invention is of a detachable structure, the movable plate 3 is rotatably connected with the groove in the base 1 through the movable shaft 34, meanwhile, the clamping plate 4 is clamped with the movable plate 3 and sealed through the sealing gasket 36, the sealing performance of the swimming pool is ensured, and the swimming pool can be detached, folded and stored when not in use, so that the floor area is reduced. Be provided with heating bath 9 and the internally mounted who heats bath 9 in base 1's bottom has electric heater 13, and electric heater 13's output is provided with electric heating wire 14 and is the setting of U type structure and be snakelike distribution, when having increased area of contact, has improved the heating effect, and heat-conducting plate 37 on its upper portion can avoid overheated with heat evenly distributed simultaneously, and temperature, convenient to use can be adjusted in this kind of setting. The lifting mechanism 5 is arranged on the surface of the clamping plate 4, the lifting mechanism 5 comprises fixed blocks 15 arranged on the surface of the clamping plate 4, screw rods 16 are arranged between the fixed blocks 15, rocking rods 17 are arranged at the tops of the screw rods 16 to facilitate manual rotation of the screw rods 16, adjusting blocks 19 are arranged on the surfaces of the screw rods 16 and are in threaded connection with the screw rods 16, meanwhile, buffering columns 18 are arranged on the upper portions of the adjusting blocks 19, the buffering columns 18 are sleeved on the surfaces of the screw rods 16, connecting blocks 31 are arranged on the surfaces of the screw rods 16, the connecting blocks 31 are in sliding connection with the screw rods 16 and are in mutual contact with the buffering columns 18, a movable plate 3 is arranged on the side face of each connecting block 31, the movable plate 3 is fixedly connected with the connecting blocks 31, the movable plate can slide up and down, children can be effectively reduced to be in direct contact with a bottom heat conduction plate 37, scalding is avoided, and the height of the movable plate 3 is adjusted at the same time, thereby make children adapt to the height of swimming, be provided with filter tank 30 on the surface of fly leaf 3, it can salvage bottom debris, can filter partial dirty when intaking simultaneously. Be provided with in the side of fly leaf 3 and connect 6 and include fixing base 21, the surface mounting who is provided with screw thread post 22 and screw thread post 22 in the side of fixing base 21 has fixed sleeve 24, install fixed sleeve 24 inside fixed sleeve 24 during the use, then peg graft fixed sleeve 24 at screw thread post 22 surface and rotatory, make it and connect between 6 between fixed, this kind of setting makes things convenient for the connection of pipeline, conveniently carry out retaining, the inside that connects 6 was provided with bayonet 27 and bayonet 27 is provided with ball valve 29 simultaneously, the side of ball valve 29 is provided with spring post 28, when inserting the pipeline and retaining because pressure acts on, ball valve 29 removes to the side, thereby open bayonet 27 and make rivers get into, ball valve 29 then blocks bayonet 27 when stopping retaining, avoid rivers to flow out, form the check valve structure, high durability and convenient use.

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.