Front sampling type discharging hopper and sorting machine
By incorporating an inner hopper and sampling gate within the discharge hopper, layered storage and convenient sampling of materials are achieved, solving the problems of inconvenient sampling and safety hazards in existing discharge hoppers, and improving the safety and efficiency of sampling operations.
Patent Information
- Application Number
- CN202422956854.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The existing discharge hopper has a narrow front-to-back distance between the finished product hopper and the defective product hopper, which makes sampling operations inconvenient and easily scratches hands and arms, especially when multiple hoppers are arranged side by side.
Design a pre-sampling discharge hopper, in which an inner hopper is set inside an outer hopper and together with the outer hopper forms a first material chamber and a second material chamber. The bottom of the inner hopper extends out of the outer hopper to form a discharge port, and a sampling port is set on the front side wall of the outer hopper. The material chambers of the inner and outer hoppers can be covered or opened by a sampling door, so as to realize the layered storage of materials and convenient sampling.
It enables convenient sampling of materials, avoids injuries caused by personnel operating in narrow spaces, and improves sampling safety and efficiency.
Smart Images
Figure CN223602921U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of intelligent sorting, in particular to a front sampling type discharge hopper and a sorting machine. BACKGROUND
[0002] The sorting machine is a device for classifying and sorting mixed materials according to specific standards (such as size, weight, color, shape, etc.). The sorting machine is widely used in agriculture, food processing, mining, recycling and other industries.
[0003] The discharge hopper is one of the core structures of the sorting machine, which is mainly used as a container for storing and conveying materials. Discharge hopper sampling refers to the process of extracting a representative sample from the hopper to evaluate the quality, composition or other characteristics of the material, which can ensure the stability of the production process and the quality of the product.
[0004] The current discharge hopper, the finished product hopper and the substandard product hopper are arranged in front and back, and the front side walls of the finished product hopper and the substandard product hopper are respectively provided with sampling ports for sampling. However, due to the narrow front and back spacing between the finished product hopper and the substandard product hopper, it is very inconvenient for personnel to perform sampling operation on the rear side of the finished product, and it is easy to scratch hands and arms, especially when multiple hoppers are arranged side by side for use, sampling is more inconvenient, and it is more likely to scratch hands and arms. CONTENT OF THE INVENTION
[0005] The purpose of the application is to provide a front sampling type discharge hopper and a sorting machine, which is convenient for sampling and can avoid injury to personnel during sampling.
[0006] Embodiments of the application can be implemented as follows:
[0007] In a first aspect, the utility model provides a front sampling type discharge hopper, which comprises an outer hopper, an inner hopper and a sampling door.
[0008] The inner hopper is arranged in the outer hopper, and the top front edge of the inner hopper is connected to the middle region of the front side wall of the outer hopper, and the bottom of the inner hopper extends out of the outer hopper and forms a first discharge port.
[0009] A first material cavity is formed between the inner wall of the inner hopper and the inner wall of the outer hopper.
[0010] A second material cavity is formed between the outer wall of the inner hopper and the inner wall of the outer hopper.
[0011] A sampling port is arranged on the front side wall of the outer hopper, and the first material cavity and the second material cavity are in communication with the sampling port.
[0012] A second discharge port is arranged on the bottom wall of the outer hopper, and the second material cavity is in communication with the second discharge port.
[0013] The sampling door is movably arranged on the front side wall to cover or open the sampling port.
[0014] In an optional embodiment, the first material cavity is formed between the inner wall of the inner bucket and the front side wall, and the second material cavity is formed between the outer wall of the inner bucket and the rear side wall of the outer bucket.
[0015] In an optional embodiment, the inner bucket comprises an inner bucket body and a partition plate connected to a top rear edge of the inner bucket body.
[0016] A top front edge of the inner bucket body is connected to a middle portion of the front side wall, a bottom of the inner bucket body extends out of the outer bucket to form the first discharge port, and the partition plate extends to a top of the outer bucket.
[0017] The first material cavity is formed between the partition plate, the front side wall and the inner wall of the inner bucket body.
[0018] The second material cavity is formed between the partition plate, the rear side wall of the outer bucket and the outer wall of the inner bucket body.
[0019] In an optional embodiment, the inner bucket body comprises a collection funnel and a discharge pipe connected to an outer bottom of the collection funnel, a top of the collection funnel is connected to an inner side wall of the outer bucket and a bottom edge of the partition plate, an inner wall of the collection funnel forms the first material cavity together with the front side wall and the partition plate, and the discharge pipe extends out of the outer bucket, and an end of the discharge pipe outside the outer bucket forms the first discharge port.
[0020] In an optional embodiment, a surface of the rear side wall for forming the second material cavity is curved, and a center of curvature is located on a side of the rear side wall close to the first material cavity.
[0021] In an optional embodiment, the front sampling type discharge hopper further comprises a support plate connected to a region of a bottom wall of the outer bucket on a peripheral side of the first discharge port, and the inner bucket is arranged through the support plate at a portion of the outer bucket.
[0022] In an optional embodiment, the support plate comprises a bottom plate and a side plate connected in an angle, the bottom plate is connected to a region of a bottom wall of the outer bucket on a peripheral side of the first discharge port, and the inner bucket is arranged through the bottom plate at a portion of the outer bucket, and the side plate is connected to the rear side wall of the outer bucket.
[0023] In an optional embodiment, the sampling port comprises a first sampling port and a second sampling port, the first sampling port is located above the top front edge of the inner bucket and communicates with the first material cavity, and the second sampling port is located below the top front edge of the inner bucket and communicates with the second material cavity.
[0024] The sampling door comprises a first sampling door and a second sampling door, the first sampling door and the second sampling door are movably connected with the front side wall respectively, the first sampling door can open or cover the first sampling port, and the second sampling door can open or cover the second sampling port.
[0025] In an optional embodiment, the bottom edge of the first sampling door is hinged to the front side wall, a first fastener is connected with a first fastener on the front side wall, a first clamping groove is formed between the first fastener and the front side wall, and the top edge of the first sampling door has a first rib with an included angle, and the first rib is embedded in the first clamping groove.
[0026] and / or,
[0027] The bottom edge of the second sampling door is hinged to the front side wall, a second fastener is connected with a second fastener on the front side wall, a second clamping groove is formed between the second fastener and the front side wall, and the top edge of the second sampling door has a second rib with an included angle, and the second rib is embedded in the second clamping groove.
[0028] In a second aspect, the utility model provides a sorting machine, including the front sampling type discharge hopper of any one of preceding embodiment.
[0029] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:
[0030] By installing the inner bucket in the inner part of the outer bucket to form the first material cavity and the second material cavity, and by extending the bottom of the inner bucket to the outside of the outer bucket to form the first discharge port, the first material in the first material cavity can be discharged from the first discharge port, and the bottom of the outer bucket directly forms the second discharge port for the second material in the second material cavity to be discharged, thereby realizing the separation and storage of two types of materials. Since the top front edge of the inner bucket is connected to the middle region of the front side wall of the outer bucket, the first material cavity and the second material cavity are partially arranged in a layered manner. Since the sampling port provided on the front side wall communicates with the first material cavity and the second material cavity, the first material in the first material cavity or the second material in the second material cavity can be directly taken from the front side of the discharge hopper after the sampling port is opened by the sampling door. Sampling is convenient, and personnel do not need to bend their hands and hooks into the gap between the finished product hopper and the defective product hopper as in the traditional hopper to sample the finished product, thereby avoiding injuries during the sampling process. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0032] Figure 1 is a schematic view of a discharge hopper in the prior art;
[0033] Figure 2 is a schematic view of a plurality of Figure 1 discharge hoppers shown arranged side by side for use;
[0034] Figure 3 is a front view of a front sampling type discharge hopper according to an embodiment of the present application;
[0035] Figure 4 is a side view of Figure 3 ;
[0036] Figure 5 is a top view of Figure 3 ;
[0037] Figure 6 is one of the partial schematic views of Figure 4 ;
[0038] Figure 7 is another of the partial schematic views of Figure 4 .
[0039] Figure legend: 1 - defective product sampling door; 2 - finished product sampling door; 100 - outer hopper; 110 - first material cavity; 120 - second discharge opening; 130 - first sampling door; 131 - first rib; 140 - second sampling door; 141 - second rib; 150 - front side wall; 160 - rear side wall; 170 - first fastener; 171 - first fastener; 172 - first clamping groove; 180 - second fastener; 181 - second fastener; 182 - second clamping groove; 200 - inner hopper; 210 - second material cavity; 220 - first discharge opening; 230 - inner hopper body; 231 - collection funnel; 232 - discharge pipeline; 240 - partition plate; 300 - support plate; 310 - bottom plate; 320 - side plate. DETAILED DESCRIPTION
[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will describe the technical solutions in the embodiments of the present application clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, and not all embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0041] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the application.
[0042] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0043] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0044] In addition, the terms "horizontal", "vertical", "overhanging", and the like do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0045] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0046] Conventional sorting discharge hoppers such as Figure 1As shown, the finished product hopper and the substandard product hopper are arranged in front and back, and the front side wall 150 of the finished product hopper and the substandard product hopper is respectively provided with a sampling port for sampling, that is, a finished product sampling door 2 which can be opened or covered is arranged on the front side wall 150 of the finished product hopper, and a substandard product sampling door 1 which can be opened or covered is arranged on the front side wall 150 of the substandard product hopper. However, due to the narrow front and back spacing between the finished product hopper and the substandard product hopper, it is very inconvenient for personnel to open the finished product sampling door 2 to perform finished product sampling operation, and it is easy to scratch hands and arms, especially when multiple hoppers are arranged side by side for use, such as Figure 2 As shown, sampling is more inconvenient and it is more likely to scratch hands and arms.
[0047] Based on the above reasons, the inventor has proposed a sampling port arranged only on the front side wall 150 of the entire hopper, so that personnel no longer need to bend their hands into the gap between the finished product hopper and the substandard product hopper to perform finished product sampling as in the traditional hopper, thereby improving the unreasonable structure of the original finished product sampling difficulty and easy injury.
[0048] The following will be described in detail in combination with Figures 3 to 7 Some embodiments of the present application will be described in detail. In the case of no conflict, the following examples and features in the examples can be combined with each other.
[0049] Reference Figures 3 to 5 The embodiment of the present application discloses a front sampling type discharge hopper, which is mainly applied to a sorting machine or other equipment requiring material separation. Specifically, the front sampling type discharge hopper comprises an outer hopper 100, an inner hopper 200 and a sampling door.
[0050] The inner hopper 200 is arranged in the outer hopper 100, and the top front edge of the inner hopper 200 is connected to the middle region of the height direction of the front side wall 150 of the outer hopper 100, and the bottom of the inner hopper 200 extends out of the outer hopper 100 and forms a first discharge port 220;
[0051] The inner wall of the inner hopper 200 and the inner wall of the outer hopper 100 form a first material cavity 110;
[0052] The outer wall of the inner hopper 200 and the inner wall of the outer hopper 100 form a second material cavity 210;
[0053] The front side wall 150 of the outer hopper 100 is provided with a sampling port, and the first material cavity 110 and the second material cavity 210 are in communication with the sampling port;
[0054] The bottom wall of the outer hopper 100 is provided with a second discharge port 120, and the second material cavity 210 is in communication with the second discharge port 120;
[0055] The sampling door is movably arranged on the front side wall 150 to cover or open the sampling port.
[0056] In this way, the inner hopper 200 is installed inside the outer hopper 100 to form the first material cavity 110 and the second material cavity 210, and the bottom of the inner hopper 200 extends to the outside of the outer hopper 100 to form the first discharge port 220, so that the first material in the first material cavity 110 can be discharged from the first discharge port 220, and the bottom of the outer hopper 100 directly forms the second discharge port 120 for discharging the second material in the second material cavity 210, realizing the separation and storage of two types of materials. Since the top front edge of the inner hopper 200 is connected to the middle region of the front side wall 150 of the outer hopper 100, the first material cavity 110 and the second material cavity 210 are partially arranged in a layered manner. Since the sampling port provided on the front side wall 150 is in communication with the first material cavity 110 and the second material cavity 210, the first material in the first material cavity 110 or the second material in the second material cavity 210 can be directly taken from the front side of the discharge hopper after the sampling door is opened to open the sampling port, which is convenient for sampling, and personnel do not need to bend their hands and hooks into the gap between the finished product hopper and the defective product hopper to sample the finished product, avoiding injury during sampling.
[0057] The first material can be defective material, and the corresponding second material is finished product material. Of course, the first material can also be finished product material, and the corresponding second material is defective material. The yield of the material can be flexibly set according to the actual sorting of the finished product material and the defective product material.
[0058] In combination with Figure 6 and Figure 7 , the sampling port includes a first sampling port and a second sampling port, the first sampling port is located above the top front edge of the inner hopper 200 and is in communication with the first material cavity 110, and the second sampling port is located below the top front edge of the inner hopper 200 and is in communication with the second material cavity 210; the sampling door includes a first sampling door 130 and a second sampling door 140, the first sampling door 130 and the second sampling door 140 are respectively movably connected to the front side wall 150, the first sampling door 130 can open or cover the first sampling port, and the second sampling door 140 can open or cover the second sampling port.
[0059] The bottom edge of the first sampling door 130 is hinged to the front side wall 150, the first fastener 170 is connected to the front side wall 150 through the first fastener 171, the first clamping member 170 and the front side wall 150 form the first clamping groove 172, the top edge of the first sampling door 130 has the first rib 131 connected at an angle, and the first rib 131 is embedded in the first clamping groove 172 to cover the first sampling port. When sampling is needed, the first fastener 171 is only needed to be disassembled, the first clamping member 170 is correspondingly loosened, and the first sampling door 130 can be turned down to open the first sampling port. The first rib 131 can improve the strength and the fastening of the first sampling door 130 when covering the first sampling port on the front side wall 150.
[0060] The bottom edge of the second sampling door 140 is hinged to the front side wall 150, and the second fastener 181 is connected to the second fastener 180 on the front side wall 150, and the second fastener 180 and the front side wall 150 form a second clamping groove 182, and the top edge of the second sampling door 140 has a second rib 141 with an included angle, and the second rib 141 is embedded in the second clamping groove 182 to cover the second sampling port. When sampling is needed, only the second fastener 181 needs to be disassembled, and the second fastener 180 is correspondingly loosened, so that the second sampling door 140 can be flipped downward to open the second sampling port. The second rib 141 can improve the strength and the fastening of the second sampling door 140 when covering the second sampling port on the front side wall 150.
[0061] Of course, in some embodiments, the first sampling door 130 and the second sampling door 140 can also be hinged to the front side wall 150. In addition, the sampling port can also be a whole window, and the top front edge of the inner bucket 200 is located in the middle region in the height direction of the sampling port, so that only one sampling door needs to be installed.
[0062] Continuing to refer to Figures 3 to 5 In this embodiment, the first material cavity 110 is formed between the inner wall of the inner bucket 200 and the front side wall 150, and the second material cavity 210 is formed between the outer wall of the inner bucket 200 and the rear side wall 160 of the outer bucket 100, so that the top inlet of the first material cavity 110 and the top inlet of the second material cavity 210 are arranged in front and back directions, which facilitates the simplification of the removal structure for changing the running track of the finished material and the substandard material.
[0063] In detail, the inner bucket 200 includes an inner bucket body 230 and a partition plate 240 connected to the top rear edge of the inner bucket body 230; the top front edge of the inner bucket body 230 is connected to the middle part of the front side wall 150, the bottom of the inner bucket body 230 extends out of the outer bucket 100 to form a first discharge port 220, and the partition plate 240 extends to the top of the outer bucket 100 to divide the top opening of the outer bucket 100 into the top inlet of the first material cavity 110 and the top inlet of the second material cavity 210. The partition plate 240, the front side wall 150 and the inner wall of the inner bucket body 230 form the first material cavity 110; the partition plate 240, the rear side wall 160 of the outer bucket 100 and the outer wall of the inner bucket body 230 form the second material cavity 210.
[0064] The inner bucket body 230 comprises a collecting funnel 231 and a discharge pipe 232 connected to the outer side of the bottom of the collecting funnel 231, the top of the collecting funnel 231 is connected with the inner side wall of the outer bucket 100 and the bottom edge of the partition plate 240, the inner wall of the collecting funnel 231 is connected with the front side wall 150 and the partition plate 240 to form the first material cavity 110, the discharge pipe 232 extends out of the outer bucket 100, so that the collecting funnel 231 can play a role in gathering the first material, so as to guide the first material into the inner cavity of the discharge pipe 232, and at the same time, the first material can be closer to the front side wall 150, facilitating sampling, and the end of the discharge pipe 232 located outside the outer bucket 100 forms the first discharge port 220, realizing the guiding and discharging of the first material in the first material cavity 110 to the rear side wall 160.
[0065] In detail, the surface of the rear side wall 160 for forming the second material cavity 210 is curved, and the center of curvature is located on the side of the rear side wall 160 close to the second material cavity 210, so as to guide the second material to the area close to the front side wall 150, facilitating sampling, so that the first material and the second material can be guided out of the discharge hopper, and the position of the first sampling port is not affected.
[0066] The front sampling type discharge hopper further comprises a support plate 300, the support plate 300 is connected with the area on the bottom wall of the outer bucket 100 located on the outer peripheral side of the first discharge port 220, and the part of the inner bucket 200 located outside the outer bucket 100 is arranged in the support plate 300, that is, the discharge pipe 232 is arranged in the support plate 300, so as to improve the stability and reliability of the entire discharge hopper mounted on the rack of the sorting machine.
[0067] Specifically, the support plate 300 comprises a bottom plate 310 and a side plate 320 connected in an angle, the bottom plate 310 is connected with the area on the bottom wall of the outer bucket 100 located on the outer peripheral side of the first discharge port 220, and the part of the inner bucket 200 located outside the outer bucket 100 is arranged in the bottom plate 310, and the bottom plate 310 is used to be connected and fixed with the rack of the sorting machine, and the side plate 320 is connected with the rear side wall 160 of the outer bucket 100.
[0068] It should be noted that the inner bucket 200 and the support plate 300 are of an integrated structure, which can be connected with the outer bucket 100 by screwing, welding or the like.
[0069] In addition, the application further discloses a sorting machine comprising the front sampling type discharge hopper of the above-mentioned embodiments, and thus has corresponding structures and beneficial effects, which will not be described herein.
[0070] In summary, the embodiment of the present application discloses a front sampling type discharge hopper and a sorting machine. The inner hopper 200 is installed inside the outer hopper 100 to form the first material cavity 110 and the second material cavity 210. The bottom of the inner hopper 200 extends to the outside of the outer hopper 100 and forms the first discharge port 220. The first material in the first material cavity 110 can be discharged from the first discharge port 220. The bottom of the outer hopper 100 directly forms the second discharge port 120 for the second material in the second material cavity 210 to be discharged. The separation and storage of two types of materials are realized. The top of the inner hopper 200 is connected to the middle area of the front side wall 150 of the outer hopper 100. Therefore, the first material cavity 110 and the second material cavity 210 are partially arranged in layers. The sampling port provided on the front side wall 150 is in communication with the first material cavity 110 and the second material cavity 210. Therefore, the first material in the first material cavity 110 or the second material in the second material cavity 210 can be directly taken from the front side of the discharge hopper after the sampling door is opened and the sampling port is opened. The sampling is convenient. Personnel do not need to bend their hands and hooks into the gap between the finished product hopper and the substandard product hopper to sample the finished product as in the traditional hopper. Personnel injury during sampling is avoided.
[0071] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A front-sampling discharge hopper characterized by, The sampling device comprises an outer bucket (100), an inner bucket (200) and a sampling door; The inner bucket (200) is arranged in the outer bucket (100), and the top front edge of the inner bucket (200) is connected to the middle region of the front side wall (150) of the outer bucket (100), and the bottom of the inner bucket (200) extends out of the outer bucket (100) and forms a first discharge port (220); The inner wall of the inner bucket (200) and the inner wall of the outer bucket (100) form a first material cavity (110); The outer wall of the inner bucket (200) and the inner wall of the outer bucket (100) form a second material cavity (210); The front side wall (150) of the outer bucket (100) is provided with a sampling port, and the first material cavity (110) and the second material cavity (210) are in communication with the sampling port; The bottom wall of the outer bucket (100) is provided with a second discharge port (120), and the second material cavity (210) is in communication with the second discharge port (120); The sampling door is movably arranged on the front side wall (150) to cover or open the sampling port.
2. The front-sampling style discharge hopper of claim 1, wherein, The inner wall of the inner bucket (200) and the front side wall (150) form the first material cavity (110), and the outer wall of the inner bucket (200) and the rear side wall (160) of the outer bucket (100) form the second material cavity (210).
3. A front-sampling style discharge hopper according to claim 1 or 2, characterized in that, The inner bucket (200) comprises an inner bucket body (230) and a partition plate (240) connected to the top rear edge of the inner bucket body (230); The top front edge of the inner bucket body (230) is connected to the middle part of the front side wall (150), the bottom of the inner bucket body (230) extends out of the outer bucket (100) to form the first discharge port (220), and the partition plate (240) extends to the top of the outer bucket (100); The partition plate (240), the front side wall (150) and the inner wall of the inner bucket body (230) form the first material cavity (110); The partition plate (240), the rear side wall (160) of the outer bucket (100) and the outer wall of the inner bucket body (230) form the second material cavity (210).
4. The front-sampling style discharge hopper of claim 3, wherein, The inner bucket body (230) comprises a collection funnel (231) and a discharge pipe (232) connected to the outside of the bottom of the collection funnel (231), the top of the collection funnel (231) is connected to the inner side wall of the outer bucket (100) and the bottom edge of the partition plate (240), the inner wall of the collection funnel (231) and the front side wall (150) and the partition plate (240) form the first material cavity (110), and the discharge pipe (232) extends out of the outer bucket (100), and the end of the discharge pipe (232) outside the outer bucket (100) forms the first discharge port (220).
5. The front-sampling style discharge hopper of claim 2, wherein, The surface of the rear side wall (160) for forming the second material cavity (210) is curved, and the center of curvature is located on the side of the rear side wall (160) close to the first material cavity (110).
6. The front-sampling style discharge hopper of claim 1, wherein, The front sampling type discharge hopper further comprises a support plate (300) connected with the area on the bottom wall of the outer hopper (100) located on the outer peripheral side of the first discharge port (220), and the inner hopper (200) is arranged in the support plate (300) at the part outside the outer hopper (100).
7. A front-sampling style discharge hopper as defined in claim 6, wherein, The support plate (300) comprises an angle-shaped bottom plate (310) and a side plate (320), the bottom plate (310) is connected with the area on the bottom wall of the outer hopper (100) located on the outer peripheral side of the first discharge port (220), and the inner hopper (200) is arranged in the bottom plate (310) at the part outside the outer hopper (100), and the side plate (320) is connected with the rear side wall (160) of the outer hopper (100).
8. The front-sampling style discharge hopper of claim 1, wherein, The sampling port comprises a first sampling port and a second sampling port, the first sampling port is located above the front top edge of the inner hopper (200) and communicates with the first material cavity (110), and the second sampling port is located below the front top edge of the inner hopper (200) and communicates with the second material cavity (210). The sampling door comprises a first sampling door (130) and a second sampling door (140), the first sampling door (130) and the second sampling door (140) are respectively movably connected with the front side wall (150), the first sampling door (130) can open or cover the first sampling port, and the second sampling door (140) can open or cover the second sampling port.
9. A front-sampling style discharge hopper as defined in claim 8, wherein, The bottom edge of the first sampling door (130) is hinged to the front side wall (150), the first fastener (171) is connected with the first fastener (170) on the front side wall (150), the first fastener (170) and the front side wall (150) form a first clamping groove (172), the top edge of the first sampling door (130) has an angle-shaped first rib (131), and the first rib (131) is embedded in the first clamping groove (172). And / or, The bottom edge of the second sampling door (140) is hinged to the front side wall (150), the second fastener (181) is connected with the second fastener (180) on the front side wall (150), the second fastener (180) and the front side wall (150) form a second clamping groove (182), the top edge of the second sampling door (140) has an angle-shaped second rib (141), and the second rib (141) is embedded in the second clamping groove (182).
10. A sorter characterized by The front sampling type discharge hopper of any one of claims 1-9.