阅读说明：本技术 基于滑动调节长度的树木枝叶修剪装置 (Tree branch and leaf trimming device based on length sliding adjustment ) 是由 张杰杰 于 2021-07-05 设计创作，主要内容包括：本发明涉及一种修剪装置,具体地说,涉及基于滑动调节长度的树木枝叶修剪装置。其包括固定装置以及转动装置,所述固定装置至少包括,固定机构,所述固定机构包括固定管,所述固定管呈两端开口内部掏空的管状结构,所述固定管底部一端固定连接有固定块,所述固定块呈“L”形,所述固定块一端开设有固定槽,所述安装箱一侧开设有安装孔,所述安装孔与所述固定管一端插接配合,该基于滑动调节长度的树木枝叶修剪装置中,通过设置的转动装置,可以使得两个刀片之间自动夹紧松开,以便于减轻工人的劳动力,解决了以往剪刀多为人工按压进行剪断,长时间修剪会导致工作人员过于劳累的问题。(The invention relates to a trimming device, in particular to a tree branch and leaf trimming device based on length sliding adjustment. It includes fixing device and rotating device, fixing device includes at least, fixed establishment is including fixed pipe, fixed pipe is the inside tubular structure who hollows out of both ends opening, fixed socle portion one end fixedly connected with fixed block, the fixed block is "L" shape, the fixed slot has been seted up to fixed block one end, the mounting hole has been seted up to install bin one side, the mounting hole with fixed pipe one end grafting cooperation, this trees branch and leaf trimming means based on slide adjusting length, through the rotating device who sets up, can be so that self-holding between two blades unclamps to alleviate workman's labour, solved in the past the scissors mostly manual pressure cut, prune the problem that can lead to the staff too tired for a long time.)

1. Tree branch and leaf trimming means based on slide adjusting length, its characterized in that: comprises a fixing device (100) and a rotating device (200), wherein the fixing device (100) at least comprises;

the fixing mechanism (110) comprises a fixing pipe (111), the fixing pipe (111) is of a tubular structure with openings at two ends and hollow inside, one end of the bottom of the fixing pipe (111) is fixedly connected with a fixing block (112), the fixing block (112) is L-shaped, one end of the fixing block (112) is provided with a fixing groove (113), a first blade (114) is fixedly connected in the fixing groove (113), one end of the fixing groove is provided with a fixing hole (115), and a fixing shaft (116) is rotatably connected in the fixing hole (115);

the mounting structure comprises a mounting box (120), wherein a mounting hole (121) is formed in one side of the mounting box (120), the mounting hole (121) is in inserting fit with one end of the fixed pipe (111), a mounting plate (122) is fixedly connected to the top of the mounting box (120), and a mounting block (123) is fixedly connected to the inner wall of the bottom of the mounting box (120);

one end of the first handle (130) is fixedly connected with one side of the installation box (120), the outer wall of the first handle (130) is connected with a second handle (131) in a sliding mode, and the rotating device (200) at least comprises a first handle (130);

the transmission mechanism (210) comprises a second blade (211), a first round hole (212) is formed in the outer wall of the second blade (211), the first round hole (212) is rotatably connected with the fixed shaft (116), the second blade (211) is meshed with the first blade (114), a supporting hole (213) is formed in the side edge of the second blade (211), a connecting block (214) is rotatably connected in the supporting hole (213), one end of the connecting block (214) is fixedly connected with a connecting column (215), one end of the connecting column (215) is provided with a connecting groove (216), second round holes (217) are formed in two sides of the connecting groove (216), and a rotating shaft (218) is rotatably connected in the second round hole (217);

slewing mechanism (220), slewing mechanism (220) includes motor (221), motor (221) output shaft one end fixedly connected with eccentric wheel (222), eccentric wheel (222) department is connected with dwang (223), dwang (223) one end fixedly connected with swivel (224), swivel (224) with eccentric wheel (222) rotate to be connected, dwang (223) other end fixedly connected with second trompil (225), second trompil (225) with pivot (218) rotate to be connected.

2. The length-sliding based tree pruning device according to claim 1, wherein: first perforation (117) have been seted up to first blade (114) outer wall, mounting panel (122) are located first through-hole (118) have been seted up to fixed slot (113) both sides, first through-hole (118) with first perforation (117) female connection has bolt (119).

3. The length-sliding based tree pruning device according to claim 1, wherein: the surface of the mounting block (123) is provided with a first counter bore (124), the bottom of the mounting hole (121) is fixedly connected with a mounting base (226), the bottom of the mounting base (226) is provided with a second counter bore (227), and the second counter bore (227) and the first counter bore (124) are connected with a second screw (228) in an internal thread mode.

4. The length-sliding based tree pruning device according to claim 1, wherein: second through holes (125) are formed in four corners of the top of the installation box (120), second through holes (126) are formed in four corners of the surface of the installation plate (122), and first screws (127) are connected between the second through holes (125) and the second through holes (126) in an internal thread mode.

5. The length-sliding based tree pruning device according to claim 1, wherein: the outer wall of the second handle (131) is provided with a rubber pad (132), and the outer wall of the rubber pad (132) is provided with a plurality of bumps (133).

6. The length-sliding based tree pruning device according to claim 1, wherein: first handle (130) include first connecting pipe (140), second connecting pipe (141) and third connecting pipe (142), first connecting pipe (140), second connecting pipe (141) and all be provided with connecting axle (143) between third connecting pipe (142), first connecting hole (144) have all been seted up to second connecting pipe (141) with third connecting pipe (142) both sides, first connecting hole (144) with connecting axle (143) rotate to be connected, first connecting pipe (140) one side is rotated and is connected with connecting plate (150), second connecting hole (151) have been seted up to connecting plate (150) one end, first trompil (152) have been seted up to third connecting pipe (142) one side, first trompil (152) with dead lever (153) have been inserted in second connecting hole (151).

7. The length-sliding based tree pruning device of claim 6, wherein: threaded hole (154) is seted up to first connecting pipe (140) one side, threaded hole (154) female connection has threaded rod (160), threaded rod (160) one end fixedly connected with bracing piece (161), bracing piece (161) one end is connected with third handle (162), third handle (162) outer wall sliding connection has fourth handle (163).

8. The length-sliding based tree pruning device of claim 7, wherein: supporting rod (161) one end has been seted up mounting groove (164), mounting groove (164) both sides fixedly connected with installation axle (165), third handle (162) one end has been seted up and has been changeed hole (166), change hole (166) with installation axle (165) rotate and be connected.

9. The length-sliding based tree pruning device according to claim 1, wherein: first fluting (170) has been seted up to second handle (131) one end, second fluting (171) has been seted up in first fluting (170), sliding connection has arm-tie (172) in second fluting (171), arm-tie (172) outer wall fixedly connected with pull ring (173), first fluting (170) one end fixedly connected with spring (174), spring (174) with arm-tie (172) one side fixed connection.

10. The length-sliding based tree pruning device according to claim 1, wherein: fixed pipe (111) top and bottom inner wall all are provided with two rectangular plate (180), a plurality of support shaft (181) of fixedly connected with between two rectangular plate (180), support shaft (181) outer wall fixedly connected with bearing (182), spout (219) have been seted up to spliced pole (215) outer wall, spout (219) with bearing (182) rotate and are connected.

Technical Field

The invention relates to a trimming device, in particular to a tree branch and leaf trimming device based on length sliding adjustment.

Background

Trees are when growing process, in order to make various trees grow according to staff's planning, the staff need carry out the branch to trees and prune, present widely used pruning equipment, and the majority is ordinary scissors, but current scissors is mostly the manual work and presses and cut, prunes for a long time and can lead to staff too tired, and runs into too high branch and still need the staff to step on the object of class such as stool just can arrive for the process of pruning the branch is more in the trouble.

Disclosure of Invention

The invention aims to provide a tree branch and leaf trimming device based on sliding length adjustment, so as to solve the problems in the background technology.

In order to achieve the above purpose, a tree branch and leaf trimming device based on sliding length adjustment is provided, which comprises a fixing device and a rotating device, wherein the fixing device at least comprises;

the fixing mechanism comprises a fixing pipe, the fixing pipe is of a tubular structure with openings at two ends hollowed, one end of the bottom of the fixing pipe is fixedly connected with a fixing block, the fixing block is L-shaped, a fixing groove is formed in one end of the fixing block, a first blade is fixedly connected in the fixing groove, a fixing hole is formed in one end of the fixing block, and a fixing shaft is rotatably connected in the fixing hole;

the mounting box is characterized in that a mounting hole is formed in one side of the mounting box, the mounting hole is in inserting fit with one end of the fixed pipe, a mounting plate is fixedly connected to the top of the mounting box, and a mounting block is fixedly connected to the inner wall of the bottom of the mounting box;

one end of the first handle is fixedly connected with one side of the installation box, the outer wall of the first handle is connected with a second handle in a sliding manner, and the rotating device at least comprises a first handle;

the transmission mechanism comprises a second blade, a first round hole is formed in the outer wall of the second blade, the first round hole is rotatably connected with the fixed shaft, the second blade is meshed with the first blade, a support hole is formed in the side edge of the second blade, a connecting block is rotatably connected in the support hole, a connecting column is fixedly connected to one end of the connecting block, a connecting groove is formed in one end of the connecting column, second round holes are formed in two sides of the connecting groove, and a rotating shaft is rotatably connected in the second round hole;

slewing mechanism, slewing mechanism includes the motor, motor output shaft one end fixedly connected with eccentric wheel, eccentric wheel department is connected with the dwang, dwang one end fixedly connected with swivel, the swivel with the eccentric wheel rotates to be connected, dwang other end fixedly connected with second trompil, the second trompil with the pivot is rotated and is connected.

The motor of the embodiment preferably adopts a micro motor, and as known by workers in the art, the micro motor converts electric energy into mechanical energy, a rotor of the micro motor is driven by current, different magnetic poles are generated in different directions of the rotor current, the rotor rotates under interaction, after the rotor rotates to a certain angle, the direction of the current can be changed through changing the magnetic polarity of the rotor by the reversing function of a commutator, the direction of the interaction between the rotor and a stator is kept unchanged, and thus the micro direct current motor starts to rotate continuously.

As a further improvement of the technical scheme, a first through hole is formed in the outer wall of the first blade, the mounting plate is located on two sides of the fixing groove, and a bolt is connected with the first through hole in an inner threaded mode.

As a further improvement of the technical scheme, a first counter bore is formed in the surface of the mounting block, a mounting base is fixedly connected to the bottom of the mounting hole, a second counter bore is formed in the bottom of the mounting base, and a second screw is connected with the first counter bore in an internal thread mode.

As a further improvement of the technical scheme, second through holes are formed in four corners of the top of the installation box, second through holes are formed in four corners of the surface of the installation plate, and first screws are connected with the second through holes in a threaded mode.

As a further improvement of the technical scheme, the outer wall of the second grip is provided with a rubber pad, and the outer wall of the rubber pad is provided with a plurality of convex blocks.

As a further improvement of the technical scheme, the first handle comprises a first connecting pipe, a second connecting pipe and a third connecting pipe, connecting shafts are arranged among the first connecting pipe, the second connecting pipe and the third connecting pipe, first connecting holes are formed in two sides of the second connecting pipe and two sides of the third connecting pipe, the first connecting holes are rotatably connected with the connecting shafts, one side of the first connecting pipe is rotatably connected with a connecting plate, one end of the connecting plate is provided with the second connecting hole, one side of the third connecting pipe is provided with a first opening, and a fixing rod is inserted into the first opening and the second connecting hole.

As a further improvement of the technical scheme, a threaded hole is formed in one side of the first connecting pipe, a threaded rod is connected to the threaded hole in an inner threaded manner, a supporting rod is fixedly connected to one end of the threaded rod, a third handle is connected to one end of the supporting rod, and a fourth handle is slidably connected to the outer wall of the third handle.

As a further improvement of the technical scheme, a mounting groove is formed in one end of the support rod, mounting shafts are fixedly connected to two sides of the mounting groove, a rotating hole is formed in one end of the third handle, and the rotating hole is rotatably connected with the mounting shafts.

As a further improvement of the technical scheme, a first slot is formed in one end of the second handle, a second slot is formed in the first slot, a pulling plate is connected in the second slot in a sliding manner, a pulling ring is fixedly connected to the outer wall of the pulling plate, a spring is fixedly connected to one end of the first slot, and the spring is fixedly connected to one side of the pulling plate.

As a further improvement of the technical scheme, the inner walls of the top and the bottom of the fixed pipe are respectively provided with two rectangular plates, a plurality of supporting shafts are fixedly connected between the two rectangular plates, the outer wall of each supporting shaft is fixedly connected with a bearing, the outer wall of each connecting column is provided with a sliding groove, and the sliding grooves are rotatably connected with the bearings.

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

1. in this trees branch and leaf trimming means based on slide adjusting length, through the rotating device who sets up, can be so that self-holding between two blades unclamps to in the labour that alleviates the workman has solved and has mostly been the manual work and press and cut, prunes the problem that can lead to the staff too tired for a long time in the past.

2. Among this trees branch and leaf trimming means based on slide adjusting length, through the second handle that sets up, can be so that this trimming means's length is elongated to in pruning higher branch.

3. Among this trees branch and leaf trimming means based on slide adjusting length, through the third handle that sets up, can improve the trimming means strong point to in use the trimming means through both hands, avoid the longer arm of one-hand live time can sour problem.

4. In the tree branch and leaf trimming device based on the sliding length adjustment, the three connecting pipes are rotated through the first connecting pipe, the second connecting pipe and the third connecting pipe, so that the length of the first handle is adjusted, and the space occupation of the trimming device is reduced when the trimming device is stored.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic view of the fixing device according to embodiment 1;

FIG. 3 is a schematic structural view of a fixing mechanism according to embodiment 1;

FIG. 4 is a sectional view of the structure of the installation case of embodiment 1;

FIG. 5 is a schematic view of the first grip structure of embodiment 1;

FIG. 6 is a schematic view of the first grip structure of embodiment 1;

FIG. 7 is a schematic view of a third grip structure in accordance with embodiment 1;

FIG. 8 is a cross-sectional view of a second grip structure of embodiment 1;

FIG. 9 is a schematic sectional view of a fixed pipe structure according to example 1;

FIG. 10 is a schematic view of the structure of a rotating apparatus according to embodiment 1;

FIG. 11 is a schematic structural view of a transmission mechanism of embodiment 1;

fig. 12 is a schematic structural view of the rotating mechanism of embodiment 1.

The various reference numbers in the figures mean:

100. a fixing device;

110. a fixing mechanism; 111. a fixed tube; 112. a fixed block; 113. fixing grooves; 114. a first blade; 115. a fixing hole; 116. a fixed shaft; 117. a first perforation; 118. a first through hole; 119. a bolt;

120. installing a box; 121. mounting holes; 122. mounting a plate; 123. mounting blocks; 124. a first counterbore; 125. a second through hole; 126. a second perforation; 127. a first screw;

130. a first grip; 131. a second grip; 132. a rubber pad; 133. a bump;

140. a first connecting pipe; 141. a second connecting pipe; 142. a third connecting pipe; 143. a connecting shaft; 144. a first connection hole;

150. a connecting plate; 151. a second connection hole; 152. a first opening; 153. fixing the rod; 154. a threaded hole;

160. a threaded rod; 161. a support bar; 162. a third grip; 163. a fourth grip; 164. mounting grooves; 165. installing a shaft; 166. hole turning;

170. a first slot; 171. a second slot; 172. pulling a plate; 173. a pull ring; 174. a spring;

180. a rectangular plate; 181. a support shaft; 182. a bearing;

200. a rotating device;

210. a transmission mechanism; 211. a second blade; 212. a first circular hole; 213. a support hole; 214. connecting blocks; 215. connecting columns; 216. connecting grooves; 217. a second circular hole; 218. a rotating shaft; 219. a chute;

220. a rotating mechanism; 221. a motor; 222. an eccentric wheel; 223. rotating the rod; 224. rotating the ring; 225. a second opening; 226. installing a base; 227. a second counterbore; 228. and a second screw.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

Referring to fig. 1-12, a tree branch and leaf trimming device with length adjusted based on sliding is provided, which includes a fixing device 100 and a rotating device 200, wherein the fixing device 100 at least includes;

the fixing mechanism 110 comprises a fixing pipe 111, the fixing pipe 111 is of a tubular structure with openings at two ends hollowed out, one end of the bottom of the fixing pipe 111 is fixedly connected with a fixing block 112, the fixing block 112 is L-shaped, one end of the fixing block 112 is provided with a fixing groove 113, a first blade 114 is fixedly connected in the fixing groove 113, one end of the fixing groove is provided with a fixing hole 115, and a fixing shaft 116 is rotatably connected in the fixing hole 115;

a mounting hole 121 is formed in one side of the mounting box 120, the mounting hole 121 is in inserting fit with one end of the fixed pipe 111, a mounting plate 122 is fixedly connected to the top of the mounting box 120, and a mounting block 123 is fixedly connected to the inner wall of the bottom of the mounting box 120;

a first handle 130, one end of the first handle 130 is fixedly connected with one side of the installation box 120, the outer wall of the first handle 130 is connected with a second handle 131 in a sliding way, and the rotating device 200 at least comprises;

the transmission mechanism 210 comprises a second blade 211, a first round hole 212 is formed in the outer wall of the second blade 211, the first round hole 212 is rotatably connected with the fixed shaft 116, the second blade 211 is meshed with the first blade 114, a support hole 213 is formed in the side edge of the second blade 211, a connecting block 214 is rotatably connected in the support hole 213, one end of the connecting block 214 is fixedly connected with a connecting column 215, one end of the connecting column 215 is provided with a connecting groove 216, second round holes 217 are formed in two sides of the connecting groove 216, and a rotating shaft 218 is rotatably connected in the second round hole 217;

the rotating mechanism 220 comprises a motor 221, one end of an output shaft of the motor 221 is fixedly connected with an eccentric wheel 222, the eccentric wheel 222 is connected with a rotating rod 223, one end of the rotating rod 223 is fixedly connected with a rotating ring 224, the rotating ring 224 is rotatably connected with the eccentric wheel 222, the other end of the rotating rod 223 is fixedly connected with a second opening 225, and the second opening 225 is rotatably connected with the rotating shaft 218.

The motor 221 of this embodiment is preferably a micro motor, and as known to those skilled in the art, the micro motor converts electric energy into mechanical energy, a rotor of the micro motor is driven by current, different magnetic poles are generated in different directions of the rotor current, and the rotor rotates by interaction, after the rotor rotates to a certain angle, the direction of the current can be changed by changing the magnetic polarity of the rotor through a reversing function of a commutator, so as to keep the direction of interaction between the rotor and a stator unchanged, and thus the micro dc motor starts to rotate continuously.

When the rotating device 200 of the embodiment is used specifically, a power supply of the motor 221 is connected to enable the motor 221 to work, the motor 221 rotates to drive the eccentric wheel 222, the eccentric wheel 222 rotates to drive the rotating ring 224, the rotating ring 224 rotates to drive the rotating ring 233, the rotating rod 223 converts the rotating force of the rotating ring 224 into a force moving back and forth, the rotating rod 223 drives the connecting column 215, the connecting column 215 drives the connecting block 214, the connecting block 214 drives the second blade 211, the motor 221 moves and then converts the force into a rotating force through the fixed shaft 116, and the second blade 211 rotates at the opening of the first blade 114, so that an object beside the first connecting hole 144 is cut off.

In addition, the outer wall of the first blade 114 is provided with a first through hole 117, the mounting plate 122 is positioned on two sides of the fixing groove 113 and provided with a first through hole 118, the first through hole 118 and the first through hole 117 are in threaded connection with a bolt 119, and the threaded connection can be used for quickly disassembling the first blade 114, so that the first blade 114 can be quickly replaced when the first blade 114 is worn.

Further, a first counter bore 124 is formed in the surface of the mounting block 123, a mounting base 226 is fixedly connected to the bottom of the mounting hole 121, a second counter bore 227 is formed in the bottom of the mounting base 226, a second screw 228 is connected to the second counter bore 227 and the first counter bore 124 through internal threads, and the motor 221 can be rapidly disassembled through threaded connection, so that the motor 221 can be rapidly disassembled through maintenance.

Still further, second through hole 125 has been seted up at the four corners of install bin 120 top, and second perforation 126 has been seted up at the four corners on the mounting panel 122 surface, and second perforation 126 and second through hole 125 internal thread connection have a screw 127, and threaded connection is convenient for dismantle fast between mounting panel 122 and the install bin 120 to be convenient for quick installation and the dismantlement to mounting panel 122.

Specifically, the outer wall of the second handle 131 is provided with a rubber pad 132, the outer wall of the rubber pad 132 is provided with a plurality of protrusions 133, and the rubber pad 132 has a large friction force, so that the friction force between the hand and the second handle 131 can be increased, and the firmness of the second handle 131 in use can be improved.

In addition, the first handle 130 includes a first connection pipe 140, a second connection pipe 141 and a third connection pipe 142, the first connection pipe 140, a connection shaft 143 is disposed between the second connection pipe 141 and the third connection pipe 142, a first connection hole 144 is disposed on both sides of the second connection pipe 141 and the third connection pipe 142, the first connection hole 144 is rotatably connected to the connection shaft 143, one side of the first connection pipe 140 is rotatably connected to a connection plate 150, a second connection hole 151 is disposed on one end of the connection plate 150, a first opening 152 is disposed on one side of the third connection pipe 142, a fixing rod 153 is inserted into the first opening 152 and the second connection hole 151, the length of the first handle 130 can be adjusted by rotatably connecting the three connection pipes, so that the occupied space of the first handle 130 during storage is reduced.

Further, threaded hole 154 is seted up on one side of first connecting pipe 140, threaded hole 154 female connection has threaded rod 160, threaded rod 160 one end fixedly connected with bracing piece 161, bracing piece 161 one end is connected with third handle 162, and third handle 162 outer wall sliding connection has fourth handle 163, through the fourth handle 163 that sets up, can improve the holding power to this trimming means, can both hands hold trimming means to trimming means is more stable when using.

Still further, a mounting groove 164 is formed in one end of the supporting rod 161, a mounting shaft 165 is fixedly connected to two sides of the mounting groove 164, a rotating hole 166 is formed in one end of the third handle 162, the rotating hole 166 is rotatably connected with the mounting shaft 165, and different angles can be adjusted according to use habits of different people through the rotating connection, so that the use scene of the trimming device is improved.

In addition, first fluting 170 has been seted up to second handle 131 one end, second fluting 171 has been seted up in first fluting 170, sliding connection has arm-tie 172 in the second fluting 171, arm-tie 172 outer wall fixedly connected with pull ring 173, first fluting 170 one end fixedly connected with spring 174, spring 174 and pull plate 172 one side fixed connection, the pull ring 173 that sets up can be relaxed pulls out second handle 131 from first handle 130 outer wall, and connect through spring 174, when not using pull ring 173, the elasticity of spring 174 self can pull back pull ring 173 in the first fluting 170, so that hide pull ring 173.

Besides, fixed pipe 111 top and bottom inner wall all are provided with two rectangular plate 180, a plurality of support shaft 181 of fixedly connected with between two rectangular plate 180, support shaft 181 outer wall fixedly connected with bearing 182, spout 219 has been seted up to spliced pole 215 outer wall, spout 219 rotates with bearing 182 to be connected, rotate through bearing 182 and connect, can fix the direction of motion of spliced pole 215, so that improve spliced pole 215 motion and make stability.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.