Medical medicine classification recovery device based on peculiar smell purification mechanism

文档序号:1789941 发布日期:2021-11-05 浏览:46次 中文

阅读说明:本技术 基于异味净化机构的医药用药品分类回收装置 (Medical medicine classification recovery device based on peculiar smell purification mechanism ) 是由 徐慧 于 2021-08-04 设计创作,主要内容包括:本发明涉及一种回收装置,具体地说,涉及基于异味净化机构的医药用药品分类回收装置。其包括安装装置以及安装在所述安装装置内的处理装置,所述安装装置包括安装箱,所述安装箱的一侧开设有开口,所述开口内设置有活性炭过滤网,所述安装箱另一侧的下方开设有通孔,所述安装箱的一侧开口处铰接有箱门,该基于异味净化机构的医药用药品分类回收装置中,通过设置的存放机构,可通过鼓风机将风吹送到药品内部,使药品可以进行风,以便于防止药品不通风产生较大的异味,解决了以往由于箱子里面通风不足,导致多种药混合产生异味,从而影响周围的空气。(The invention relates to a recovery device, in particular to a medical medicine classification recovery device based on an odor purification mechanism. It includes installation device and installs processing apparatus in the installation device, installation device includes the install bin, the opening has been seted up to one side of install bin, be provided with the active carbon filter screen in the opening, the through-hole has been seted up to the below of install bin opposite side, one side opening part of install bin articulates there is the chamber door, during this medicine classification recovery unit based on peculiar smell purification mechanism, through the mechanism of depositing that sets up, inside the accessible air-blower blows medicine to the accessible to prevent that the medicine from not ventilating and producing great peculiar smell, solved in the past because the case the inside ventilates inadequately, lead to multiple medicine to mix and produce the peculiar smell to influence air on every side.)

1. Medicine classification recovery unit based on peculiar smell purifies mechanism, its characterized in that: including installation device (100) and install processing apparatus (200) in installation device (100), installation device (100) are including install bin (110), wear mouth (111) have been seted up to one side of install bin (110), it is provided with activated carbon filter screen (112) in mouthful (111) to wear, through-hole (113) have been seted up to the below of install bin (110) opposite side, one side opening part of install bin (110) articulates there is chamber door (114), processing apparatus (200) include at least:

the classification mechanism (210) comprises a supporting plate (211), the supporting plate (211) is fixedly connected to the inner wall of the periphery of the installation box (110), a plate hole (212) is formed in one side of the supporting plate (211), a plurality of connecting pipes (213) are communicated in the plate hole (212), a disc (214) is rotatably connected to the surface of the supporting plate (211), a motor (215) is fixedly connected to the bottom of the supporting plate (211), an output shaft of the motor (215) penetrates through the supporting plate (211) and is fixedly connected with the disc (214), a second baffle (216) is rotatably connected to the outer ring of the surface of the disc (214), a guide plate (217) is rotatably connected to the surface of the disc (214), one end of the guide plate (217) is fixedly connected with one end of the second baffle (216) through a fixing plate (218), and a plurality of leakage holes (219) are formed in the surface of the fixing plate (218), the leakage hole (219) is communicated with one end of the connecting pipe (213);

deposit mechanism (220), deposit mechanism (220) including depositing case (221), it sets up to deposit case (221) the bottom inner wall of install bin (110), it is provided with a plurality of division boards (222) in case (221) to deposit, deposit case (221) with division board (222) in-connection has a plurality of ventilation pipes (223), a plurality of ventilation holes (224) have been seted up to ventilation pipe (223) outer wall, ventilation pipe (223) set up in through-hole (113), the one end intercommunication of ventilation pipe (223) has storage bellows (225), the top intercommunication of storage bellows (225) has air-blower (226).

2. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: the bottom of installation box (110) is provided with installation piece (115), installation axle (116) is connected in installation piece (115) internal rotation, the both ends fixedly connected with first runner (117) of installation axle (116).

3. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 2, wherein: one side of installation piece (115) is connected with mounting panel (140), mounting panel (140) are "L" shape structure, one side threaded connection of mounting panel (140) has lead screw (141), round hole (142) have been seted up to the outer wall of first runner (117), round hole (142) with lead screw (141) are pegged graft the cooperation.

4. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: the utility model discloses a fan, including install bin (110), first baffle (121) of top fixed connection of erection column (120), the feed inlet fixedly connected with erection column (120) at install bin (110) top, the top of storing up wind box (225) is located install mounting box (122) in the periphery of air-blower (226).

5. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: one side of the installation box (110) is provided with a jack (130), a handrail (131) is inserted in the jack (130), and the outer wall of the handrail (131) is sleeved with a handrail sleeve (132).

6. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: case mouth (150) have been seted up at the top of install bin (110), it has case lid (151) to articulate in case mouth (150), the one end of case lid (151) outer wall is provided with handle (152).

7. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: the middle of the surface of the disc (214) is fixedly connected with a cylinder (170), the top of the cylinder (170) is fixedly connected with a connecting plate (171), and the connecting plate (171) is of a conical structure.

8. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: the mounting box (110) is located two ends of the penetrating opening (111) and is fixedly connected with a connecting shaft (160), the outer wall of the connecting shaft (160) is rotatably connected with a limiting plate (161), and one end of the limiting plate (161) is fixedly connected with a torsion bar (162).

9. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: a rotating groove (230) is formed in the surface of the supporting plate (211), a first connecting block (231) is fixedly connected to the bottom of the disc (214), a second connecting block (232) is rotatably connected to one end of the first connecting block (231), a second rotating wheel (233) is rotatably connected to the bottom of the second connecting block (232), and the second rotating wheel (233) is rotatably connected with the rotating groove (230).

10. The pharmaceutical drug classifying and recycling device based on the odor purifying mechanism according to claim 1, wherein: the top of one side of the storage box (221) is provided with an insertion groove (227), one side of the storage box (221) positioned in the insertion groove (227) is provided with a box hole (228), and an insertion plate (229) is inserted in the insertion groove (227).

Technical Field

The invention relates to a recovery device, in particular to a medical medicine classification recovery device based on an odor purification mechanism.

Background

The medicine is a substance for preventing, treating and diagnosing human diseases, purposefully regulating the physiological functions of human and prescribing indications or functional indications, administration and dosage, and comprises traditional Chinese medicines, chemical medicines, biological products and the like. Under the general condition, all can prepare a bit of medicine inside everybody, nevertheless because the medicine is after not using for a long time, lead to the medicine inefficacy, then the medicine that became invalid can cause harm to the environment and can not abandon at will, need send the pharmacy to retrieve, a case the inside can all be put to the medicine that became invalid, because the ventilation of case the inside is not enough, leads to the mixture of multiple medicine to produce the peculiar smell to influence air on every side.

Disclosure of Invention

The invention aims to provide a medical medicine classifying and recycling device based on an odor purifying mechanism, so as to solve the problems in the background technology.

For realizing above-mentioned purpose, provide the categorised recovery unit of medicine based on peculiar smell purification mechanism, include installation device and install processing apparatus in the installation device, installation device includes the install bin, the mouth of wearing has been seted up to one side of install bin, wear to be provided with the active carbon filter screen in the mouth, the through-hole has been seted up to the below of install bin opposite side, one side opening part of install bin articulates there is the chamber door, processing apparatus includes at least:

the classification mechanism comprises a supporting plate, the supporting plate is fixedly connected to the inner wall of the periphery of the installation box, a plate hole is formed in one side of the supporting plate, a plurality of connecting pipes are communicated in the plate hole, a disc is rotatably connected to the surface of the supporting plate, a motor is fixedly connected to the bottom of the supporting plate, an output shaft of the motor penetrates through the supporting plate and is fixedly connected with the disc, a second baffle is rotatably connected to the outer ring of the surface of the disc, a guide plate is rotatably connected to the surface of the disc, a plurality of leakage holes are formed in the surface of the fixing plate, and one end of each guide plate is fixedly connected with one end of the corresponding second baffle through the fixing plate, and the leakage holes are communicated with one end of each connecting pipe;

deposit the mechanism, deposit the mechanism including depositing the case, deposit the case setting and be in the bottom inner wall of install bin, it is provided with a plurality of division boards to deposit the incasement, deposit the case with division board in-connection has a plurality of ventilation pipes, a plurality of ventilation holes have been seted up to the ventilation pipe outer wall, the ventilation pipe sets up in the through-hole, the one end intercommunication of ventilation pipe has storage bellows, storage bellows's top intercommunication has the air-blower.

The blower of this embodiment preferably uses a centrifugal blower, and its operating principle is as known to those skilled in the art, when the blower is working, the inner blower impeller rotates at high speed, so that the air in the blower housing generates centrifugal force and is thrown away from the blower impeller, and is "forced" out of the blower through the air outlet, and at this time, because the air around the blower impeller is thrown out to generate "negative pressure", the "new air" is continuously supplemented from the air inlet, and the normal working state of the blower is formed.

As a further improvement of the technical scheme, the bottom of the installation box is provided with an installation block, an installation shaft is rotatably connected in the installation block, and two ends of the installation shaft are fixedly connected with first rotating wheels.

As a further improvement of the technical scheme, one side of the mounting block is connected with a mounting plate, the mounting plate is of an L-shaped structure, one side of the mounting plate is in threaded connection with a screw rod, the outer wall of the first rotating wheel is provided with a round hole, and the round hole is in plug-in fit with the screw rod.

As a further improvement of the technical scheme, the feed inlet at the top of the installation box is fixedly connected with an installation column, the top of the installation column is fixedly connected with a first baffle, and the top of the air storage box is located at the periphery of the air blower.

As a further improvement of the technical scheme, one side of the installation box is provided with a jack, a handrail is inserted in the jack, and the outer wall of the handrail is sleeved with a handrail sleeve.

As a further improvement of the technical scheme, a box opening is formed in the top of the installation box, a box cover is hinged in the box opening, and a lifting handle is arranged at one end of the outer wall of the box cover.

As a further improvement of the technical scheme, a cylinder is fixedly connected to the middle of the surface of the disc, and a connecting plate is fixedly connected to the top of the cylinder and is of a conical structure.

As a further improvement of the technical scheme, the mounting box is located at two ends of the penetrating opening and is fixedly connected with a connecting shaft, the outer wall of the connecting shaft is rotatably connected with a limiting plate, and one end of the limiting plate is fixedly connected with a torsion bar.

As a further improvement of the technical scheme, a rotary groove is formed in the surface of the supporting plate, a first connecting block is fixedly connected to the bottom of the disc, a second connecting block is rotatably connected to one end of the first connecting block, a second rotary wheel is rotatably connected to the bottom of the second connecting block, and the second rotary wheel is rotatably connected with the rotary groove.

As a further improvement of the technical scheme, the top of one side of the storage box is provided with a slot, the storage box is positioned at one side of the slot and is provided with a box hole, and an inserting plate is inserted in the slot.

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

1. in this medicine is with medicine categorised recovery unit based on peculiar smell purification mechanism, through the mechanism of depositing that sets up, inside the accessible air-blower sent the medicine with wind, made the medicine can wind to prevent that the medicine from not ventilating and producing great peculiar smell, solved in the past because the case the inside ventilates inadequately, lead to multiple medicine mixture to produce the peculiar smell, thereby influence air on every side.

2. In this medicine is with medicine categorised recovery unit based on peculiar smell purification mechanism, through the classification mechanism who sets up, can classify the medicine according to the size of medicine and deposit to in the treatment effeciency of improvement later stage.

3. In this medicine categorised recovery unit based on peculiar smell purifies mechanism, through the runner that sets up, the device removes in time to quick position to the device is adjusted.

4. In this medicine is with medicine classification recovery unit based on peculiar smell purification mechanism, through the active carbon filter screen that sets up, can be further eliminate the peculiar smell that the medicine produced to in the improvement is to the air quality in the medicine case.

Drawings

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

FIG. 2 is a schematic view of the structure of the mounting box of the present invention;

FIG. 3 is a schematic structural view of the mounting box of the present invention;

FIG. 4 is an enlarged view of the structure of the installation box A of the present invention;

FIG. 5 is a schematic view of the structure of the mounting box of the present invention;

FIG. 6 is a schematic view of a connection plate structure of the present invention;

FIG. 7 is a schematic view of the structure of the processing apparatus according to the present invention;

FIG. 8 is a schematic view of the sorting mechanism of the present invention;

FIG. 9 is a schematic view of the sorting mechanism of the present invention;

FIG. 10 is a schematic view of the storage mechanism of the present invention;

FIG. 11 is a schematic view of a second wheel according to the present invention.

The various reference numbers in the figures mean:

100. a mounting device;

110. installing a box; 111. perforating; 112. an active carbon filter screen; 113. a through hole; 114. a box door; 115. mounting blocks; 116. installing a shaft; 117. a first runner; 118. a door handle;

120. mounting a column; 121. a first baffle plate; 122. mounting a box;

130. a jack; 131. a handrail; 132. a handrail sleeve;

140. mounting a plate; 141. a screw rod; 142. a circular hole;

150. a box opening; 151. a box cover; 152. a handle;

160. a connecting shaft; 161. a limiting plate; 162. a torsion bar;

170. a cylinder; 171. a connecting plate;

200. a processing device;

210. a sorting mechanism; 211. a support plate; 212. plate holes; 213. a connecting pipe; 214. a disc; 215. a motor; 216. a second baffle; 217. a baffle; 218. a fixing plate; 219. a leak hole;

220. a storage mechanism; 221. a storage box; 222. a separator plate; 223. a vent pipe; 224. a vent hole; 225. an air storage box; 226. a blower; 227. a slot; 228. a box hole; 229. inserting plates;

230. rotating the groove; 231. a first connection block; 232. a second connecting block; 233. a second wheel.

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 to 11, a medical drug classifying and recycling device based on an odor purifying mechanism is provided, which includes a mounting device 100 and a processing device 200 installed in the mounting device 100, the mounting device 100 includes a mounting box 110, a through hole 111 is opened at one side of the mounting box 110, an activated carbon filter screen 112 is disposed in the through hole 111, a through hole 113 is opened below the other side of the mounting box 110, a box door 114 is hinged at an opening at one side of the mounting box 110, in order to open the box door 114, a door handle 118 is installed at one side of the box door 114, and the processing device 200 at least includes:

the sorting mechanism 210 comprises a supporting plate 211, the supporting plate 211 is fixedly connected to the inner wall of the periphery of the installation box 110, a plate hole 212 is formed in one side of the supporting plate 211, a plurality of connecting pipes 213 are communicated in the plate hole 212, a disc 214 is rotatably connected to the surface of the supporting plate 211, a motor 215 is fixedly connected to the bottom of the supporting plate 211, an output shaft of the motor 215 penetrates through the supporting plate 211 and is fixedly connected with the disc 214, a second baffle plate 216 is rotatably connected to the outer ring of the surface of the disc 214, the second baffle plate 216 is used for shielding the disc 214, the medicines on the surface of the disc 214 can be prevented from being separated from the disc 214 by centrifugal force generated when the disc 214 rotates, a guide plate 217 is rotatably connected to the surface of the disc 214, the guide plate 217 is used for guiding the medicines, the medicines on the surface of the disc 214 can only move through the channel through the guide plate 217, one end of the guide plate 217 is fixedly connected with one end of the second baffle plate 216 through a fixing plate 218, it is worth to be noted that one end of the surface of the fixing plate 218 is inclined to the other end, the surface of the fixing plate 218 is provided with a plurality of leakage holes 219, and the leakage holes 219 are communicated with one end of the connecting pipe 213;

deposit mechanism 220, deposit mechanism 220 including depositing case 221, deposit the bottom inner wall that case 221 set up at install bin 110, it is provided with a plurality of baffles 222 to deposit incasement 221, it has a plurality of ventilation pipes 223 to deposit incasement 221 and baffle 222 in-connection, a plurality of ventilation holes 224 have been seted up to ventilation pipe 223 outer wall, ventilation pipe 223 sets up in through-hole 113, the one end intercommunication of ventilation pipe 223 has air storage box 225, air storage box 225's top intercommunication has air-blower 226, deposit mechanism 220 through setting up, accessible air-blower 226 blows the medicine inside with wind-blowing, make the medicine can wind, so that prevent that the medicine from not ventilating and produce great peculiar smell.

The blower 226 of this embodiment is preferably a centrifugal blower, and its operation principle is as known by those skilled in the art, when the blower is working, the inner blower impeller rotates at high speed, so that the air in the blower housing generates centrifugal force to be thrown away from the blower impeller, and is "forced" out of the blower through the air outlet, and at this time, the air around the blower impeller is thrown out to generate "negative pressure", so that "new air" is continuously supplemented from the air inlet, and the normal working state of the blower is formed.

When the treatment device 200 of this embodiment is used specifically, put into the surface of disc 214 with the medicine, switch on motor 215 power, make its work, the rotation of motor 215 output shaft drives disc 214, disc 214 drives surperficial medicine and rotates, the medicine on disc 214 surface passes through the spacing of second baffle 216 and the water conservancy diversion of guide plate 217, make the medicine remove to fixed plate 218 department, and fall into the small opening 219 of different diameters according to the size of medicine, fall into storage box 221 through connecting pipe 213, when needs ventilate, switch on the air-blower 226 power, make its work, air-blower 226 blows in the medicine through the ventilation hole 224 of ventilation pipe 223 outer wall with wind, make to ventilate the medicine, then adsorb the peculiar smell through active carbon filter screen 112 and discharge.

In addition, for the device can be easily moved, the bottom of the installation box 110 is provided with an installation block 115, an installation shaft 116 is rotatably connected in the installation block 115, two ends of the installation shaft 116 are fixedly connected with first rotating wheels 117, the device is driven by the contact and rotation of the first rotating wheels 117 and the ground, and the position of the device can be quickly adjusted.

Further, in order to prevent the device from moving during use, one side of the mounting block 115 is connected with a mounting plate 140, the mounting plate 140 is in an L-shaped structure, one side of the mounting plate 140 is in threaded connection with a screw rod 141, a round hole 142 is formed in the outer wall of the first rotating wheel 117, the round hole 142 is in inserted fit with the screw rod 141, and the screw rod 141 rotates and moves into the round hole 142 to lock the first rotating wheel 117, so that the device cannot move.

Still further, in order to prevent rainwater from entering the installation box 110 during raining, the mounting column 120 is fixedly connected to the feed inlet at the top of the installation box 110, the first baffle 121 is fixedly connected to the top of the mounting column 120, the installation box 122 is installed at the periphery of the air blower 226 at the top of the air storage box 225, and the rainwater cannot enter the installation box 110 and the air blower 226 through shielding of the first baffle 121 and the installation box 122.

Specifically, for the quick promotion the device removes, jack 130 has been seted up to one side of install bin 110, preferably, jack 130 is provided with a plurality of, make being higher than of handrail 131 to adjust, so that people of different heights can promote, it has handrail 131 to peg graft in the jack 130, handrail 131's outer wall has cup jointed handrail cover 132, handrail cover 132 preferably adopts the rubber material, rubber has strong frictional force, can prevent that the hand from breaking away from handrail 131, handrail 131 can improve the stress point of the device, make the removal that the device can relax.

In addition, in order to observe the operational aspect of sorting mechanism 210, prevent the condition that the medicine blockked up, case mouth 150 has been seted up at the top of install bin 110, it has case lid 151 to articulate in the case mouth 150, the one end of case lid 151 outer wall is provided with handle 152, case lid 151 preferentially adopts transparent material to be convenient for quick observing sorting mechanism 210, observe sorting mechanism 210's operational aspect through case lid 151, when taking place to block up, the accessible is opened case lid 151 and is handled.

Further, in order to prevent the sorting mechanism 210 from being blocked by too much medicine being put in at one time, the cylinder 170 is fixedly connected to the middle of the surface of the disc 214, the connecting plate 171 is fixedly connected to the top of the cylinder 170, and the connecting plate 171 has a tapered structure, so that the medicine is uniformly dispersed by putting the medicine on the surface of the connecting plate 171.

Still further, in order to facilitate the detachment of the activated carbon filter screen 112, two ends of the mounting box 110 located at the through opening 111 are fixedly connected with a connecting shaft 160, an outer wall of the connecting shaft 160 is rotatably connected with a limiting plate 161, one end of the limiting plate 161 is fixedly connected with a torsion bar 162, the activated carbon filter screen 112 is clamped and fixed by the rotation of the torsion bar 162, the limiting plate 161 is rotated in the opposite direction during the detachment, and it is worth explaining that the torsion bar 162 can improve the stress point of the limiting plate 161 so as to easily rotate the limiting plate 161.

In addition, in order to increase the stability of the rotation of the disc 214, the rotating groove 230 is formed in the surface of the supporting plate 211, the first connecting block 231 is fixedly connected to the bottom of the disc 214, the second connecting block 232 is rotatably connected to one end of the first connecting block 231, the second rotating wheel 233 is rotatably connected to the bottom of the second connecting block 232, the second rotating wheel 233 is rotatably connected to the rotating groove 230, the pressure of the disc 214 is shared through the plurality of second rotating wheels 233, and therefore the stability of the disc 214 during rotation is guaranteed.

In addition, in order to quickly take out the recycled medicine, the top of one side of the storage box 221 is provided with an insertion slot 227, one side of the storage box 221, which is located at the insertion slot 227, is provided with a box hole 228, an insertion plate 229 is inserted into the insertion slot 227, and the opening and closing of the box hole 228 are controlled by sliding the insertion plate 229 up and down, so that the medicine can be taken out by sliding the insertion plate 229 during medicine taking.

The categorised recovery unit of medicine based on peculiar smell purifies mechanism of this embodiment is when specifically using, put into the surface of disc 214 with the medicine, switch on motor 215 power, make its work, motor 215 output shaft rotates and drives disc 214, disc 214 drives surperficial medicine and rotates, the medicine on disc 214 surface is through the spacing of second baffle 216 and the water conservancy diversion of guide plate 217, make the medicine remove fixed plate 218 department, and fall into the small opening 219 of different diameters according to the size of medicine, fall into storage box 221 through connecting pipe 213, when needs ventilate, switch on air-blower 226 power, make its work, air-blower 226 blows in the medicine through the ventilation hole 224 of ventilation pipe 223 outer wall in with wind, make ventilate the medicine, then can through active carbon filter screen 112 with peculiar smell absorption discharge.

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.

18页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:一种环保用垃圾场垃圾分离滚筒筛装置

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!

技术分类