Fine grading equipment for mud flat shellfish
By designing a multi-stage screening device and a shellfish separation structure, a fine grading equipment for tidal flat shellfish has been developed, solving the problem of low shellfish screening efficiency in existing technologies and realizing automated fine grading and efficient screening of shellfish.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-10
AI Technical Summary
Most existing shellfish screening methods use screens with fixed apertures, requiring manual tilting and screening. This results in some shellfish that do not meet the size requirements being mixed into other grades, making the operation cumbersome and inefficient.
Design a fine grading device for tidal flat shellfish, which adopts a multi-stage screening device and shellfish separation structure. Through step-by-step sorting and cleaning structure, the shellfish can be automatically graded, ensuring that larger shellfish are stuck in the screening holes and smaller shellfish fall down through the screening holes. The cleaning structure removes the shellfish stuck in the screening holes, thereby improving screening efficiency.
It enables automated and precise grading of shellfish, improving screening efficiency and effectiveness, reducing manual operation, and avoiding the tedious process of multiple screenings.
Smart Images

Figure CN224098654U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of shellfish grading, in particular to a beach shellfish fine grading equipment. BACKGROUND
[0002] Shellfish culture is one of the leading industries of Chinese fisheries, which has made great contribution to the development of Chinese fisheries economy. As one of the main economic shellfishes, Chlamys variegata has a wide cultivation area and a large yield. Beach is the main habitat of Chlamys variegata, and the environment of beach collection is very harsh. The collection and classification operation of Chlamys variegata is an important link in the cultivation process of Chlamys variegata. In order to improve the efficiency of shellfish collection, the mechanization of shellfish collection is a current trend. The team's previous application for a Chinese utility model patent (CN221329915U) discloses a combined harvester for beach Chlamys variegata collection, which can perform automatic collection operation on the beach. However, the equipment cannot perform fine grading after shellfish collection. At present, the grading method after shellfish collection is mostly to screen and grade the shellfishes. The common screening method is to use a fixed aperture screen, and the shellfishes need to be poured manually on the screen for screening. Some shellfishes with sizes not meeting the requirements may be mixed into other grades, and need to be screened multiple times, which is relatively cumbersome and inefficient. SUMMARY
[0003] Therefore, the utility model provides a beach shellfish fine grading equipment, which solves the problem of the existing screening method using a fixed aperture screen, the need for manual pouring of shellfishes on the screen for screening, the mixing of some shellfishes with sizes not meeting the requirements into other grades, the need for multiple screening, and the relatively cumbersome and inefficient operation.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] A beach shellfish fine grading equipment for grading shellfishes or other types of block-shaped objects, comprising a base, a hollow cylinder arranged above the base, and a plurality of longitudinally distributed grading and screening devices arranged inside the cylinder.
[0006] The grading and screening device comprises a screening mesh disc fixedly connected inside the cylinder, a plurality of screening holes are arranged at intervals on the screening mesh disc, a plurality of discharge ports are arranged on one side of the screening mesh disc on the cylinder, the screening holes arranged on the upper screening mesh disc are larger than the screening holes arranged on the lower screening mesh disc, the screening holes are arranged in a rectangular shape, a cleaning structure for cleaning the shellfishes on the screening mesh disc is installed inside the cylinder, and the cleaning structure is arranged on one side of the discharge port.
[0007] The base is provided with a bottom part-level storage bin, the cylinder top is provided with a top plate, the top plate is provided with a feeding port, the screening mesh disc is connected with a rotating driving part;
[0008] The cylinder is provided with a plurality of shellfish separation structures above the screening mesh disc.
[0009] In a possible implementation, the shellfish separation structure comprises a fixed plate fixedly connected to the inside of the cylinder, the fixed plate is provided with a cleaning scraper, and the cleaning scraper is fixedly connected with a shellfish separation brush on the side close to the screening mesh disc.
[0010] In a possible implementation, the fixed plate and the cleaning scraper are slidingly connected, and the fixed plate is fixedly provided with a cleaning electric push rod for sliding the cleaning scraper.
[0011] In a possible implementation, the cleaning scraper is provided with a plurality of shellfish separation brushes, and the shellfish separation brushes are inclinedly arranged on the cleaning scraper.
[0012] In a possible implementation, the rotating driving part comprises a rotating rod rotatingly connected to the inside of the cylinder, the rotating rod is fixedly connected with the screening mesh disc, and the top plate is fixedly provided with a screening driving motor for driving the rotating rod to rotate.
[0013] In a possible implementation, the cleaning structure comprises a discharging roller brush rotatingly connected to the bottom of the screening mesh disc, the discharging roller brush is used for cleaning the shellfish inside the screening hole, one end of the discharging roller brush close to the rotating rod is fixedly connected with a driven bevel gear, the rotating rod is fixedly provided with a driving bevel gear meshing with the driven bevel gear, the inside of the cylinder is rotatingly connected with a pushing roller brush, the pushing roller brush is located above the screening mesh disc, and the discharging outlet is used for pushing the shellfish pushed out of the pushing roller brush, and one end of the pushing roller brush is provided with a cleaning driving motor.
[0014] In a possible implementation, the bottom part-level storage bin is downwardly inclined at the bottom, and a bottom outlet is formed at the bottom end of the bottom part-level storage bin.
[0015] In a possible implementation, the bottom outlet and the discharging outlet are fixedly provided with a material guide groove.
[0016] In a possible implementation, the feeding port is fixedly provided with a hopper at the upper end, and a material guide plate is fixedly connected to the lower end of the feeding port, the inside of the hopper is slidingly connected with an anti-blocking plate, the anti-blocking plate is fixedly connected with an anti-blocking swing brush on the side close to the inside of the hopper, and an anti-blocking electric push rod is arranged between the anti-blocking plate and the hopper.
[0017] In a possible implementation, a plurality of anti-blocking swing brushes are arranged on the anti-blocking plate, and the anti-blocking swing brushes are arranged obliquely.
[0018] In summary, due to the adoption of the above technical solutions, the present application has the following beneficial effects:
[0019] In the present application, the intertidal shellfish fine grading equipment is provided with multiple grading and screening devices for step-by-step sorting, thereby improving the screening efficiency. Meanwhile, the shellfish separation structure is added to evenly lay the shellfish on the screening mesh disc, so that the shellfish enter the screening holes, the larger shellfish are stuck in the screening holes, and the smaller shellfish fall downward through the screening holes, thereby improving the screening effect. In addition, the cleaning structure is arranged to clean the shellfish stuck in the screening holes from the screening mesh disc, thereby continuously screening to effectively improve the work efficiency and the screening effect. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall installation of the present application;
[0021] Figure 2 It is a schematic diagram of the internal structure of the present application;
[0022] Figure 3 It is a schematic diagram of the internal structure installation of the present application;
[0023] Figure 4 It is a schematic diagram of the screening mesh disc of the present application;
[0024] Figure 5 It is a schematic diagram of the base section of the present application;
[0025] Figure 6 It is a schematic diagram of the top plate section of the present application.
[0026] Markings in the figure:
[0027] 1, base; 2, cylinder; 3, screening mesh disc; 4, screening hole; 5, discharge port; 6, bottom grading storage bin; 7, top plate; 8, feed inlet; 9, fixed plate; 10, cleaning scraper; 11, shellfish separation brush; 12, rotating rod; 13, screening drive motor; 14, discharge roller brush; 15, driven bevel gear; 16, drive bevel gear; 17, push-out roller brush; 18, bottom outlet; 19, material guide groove; 20, hopper; 21, material guide plate; 22, anti-blocking plate; 23, anti-blocking swing brush. DETAILED DESCRIPTION
[0028] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0029] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The present application can also be implemented or applied through other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.
[0030] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any particular structure and / or function described herein is merely illustrative. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, an apparatus and / or a method can be implemented using any number of the aspects set forth herein. In addition, this apparatus and / or method can be implemented using other structures and / or functionality in addition to or other than one or more of the aspects set forth herein.
[0031] It should also be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be a random change in shape, number and proportion, and the layout of the components can also be more complex.
[0032] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the aspects described can be practiced without these specific details.
[0033] As shown in Figure 1 A fine grading device for intertidal shellfish is used for grading shellfish or grading other types of block-shaped objects. The following only describes the grading of shellfish, and the grading of other types of screened objects is not described one by one.
[0034] As shown in Figures 1-6 The fine grading device for intertidal shellfish includes a base 1, a hollow cylinder 2 is arranged above the base 1, and a plurality of longitudinal grading and screening devices are arranged inside the cylinder 2.
[0035] The grading screening device comprises a plurality of screening mesh plates 3 fixedly connected inside the barrel 2, the plurality of screening mesh plates 3 are installed inside the barrel 2 from top to bottom, a plurality of screening holes 4 are formed in the screening mesh plates 3, a plurality of discharge ports 5 are formed in the barrel 2 and arranged on one side of the screening mesh plates 3, the screening holes 4 formed in the upper screening mesh plate 3 are larger than the screening holes 4 formed in the lower screening mesh plate 3, and the screening holes 4 are arranged in a rectangular shape.
[0036] As shown in Figure 5 , a bottom grading storage bin 6 is formed in the base 1, and a top plate 7 is installed on the top of the barrel 2, and a feeding port 8 is formed in the top plate 7.
[0037] As shown in Figure 3 , a rotating driving component is connected to the screening mesh plate 3, and the rotating driving component drives the screening mesh plate 3 to rotate; the rotating driving component comprises a rotating rod 12 rotatably connected inside the barrel 2, the rotating rod 12 is fixedly connected to the screening mesh plate 3, a screening driving motor 13 for driving the rotating rod 12 to rotate is fixedly connected to the top plate 7, the screening driving motor 13 is connected to a power supply, the screening driving motor 13 drives the rotating rod 12 to rotate, and the rotating rod 12 drives the screening mesh plate 3 to rotate.
[0038] In use, the shellfishes are poured into the barrel 2 through the feeding port 8, and the shellfishes first pass through the upper screening mesh plate 3, the larger shellfishes are clamped in the screening holes 4, and the smaller shellfishes fall downward through the screening holes 4 to be graded and screened.
[0039] A plurality of shellfish separation structures are arranged inside the barrel 2, and each shellfish separation structure is arranged above each screening mesh plate 3.
[0040] As shown in Figures 2-3 , each shellfish separation structure comprises a fixed plate 9 fixedly connected inside the barrel 2, a cleaning scraper 10 is arranged on the fixed plate 9, and a shellfish separation brush 11 is fixedly connected to one side of the cleaning scraper 10 close to the screening mesh plate 3; when the shellfishes fall onto the screening mesh plate 3 and are accumulated, the larger shellfishes are clamped in the screening holes 4, the smaller shells cannot fall downward through the screening holes 4, and are easy to rotate together with the screening mesh plate 3, thereby reducing the separation effect; therefore, the cleaning scraper 10 and the shellfish separation brush 11 are added, when the larger shellfishes are clamped in the screening holes 4 and the smaller shells cannot fall downward through the screening holes 4, the screening mesh plate 3 rotates, the shellfish separation brush 11 pushes the shellfishes above the screening holes 4 backward, so that the smaller shellfishes pass through the empty screening holes 4 and fall downward, and the larger shellfishes continue to be clamped in the screening holes 4, thereby improving the separation effect.
[0041] The fixed plate 9 and the cleaning scraper 10 are slidingly connected, and the fixed plate 9 is fixedly provided with a cleaning electric push rod for slidingly pushing the cleaning scraper 10. In use, the cleaning electric push rod pushes the cleaning scraper 10 to reciprocatingly slide on the fixed plate 9, thereby pushing the shellfish separating brush 11 to reciprocatingly slide, and improving the pushing of the shellfish falling on the screening net disc 3 to the empty screening hole 4.
[0042] The cleaning scraper 10 is provided with a plurality of shellfish separating brushes 11, and the shellfish separating brushes 11 are obliquely arranged on the cleaning scraper 10, so that the inclined surface of the shellfish separating brush 11 pushes the shellfish, thereby improving the cleaning efficiency.
[0043] The cylinder body 2 is internally provided with a cleaning structure for cleaning the shellfish on the screening net disc 3, and the cleaning structure is arranged on one side of the discharge port 5.
[0044] As shown in Figures 2-3 , the cleaning structure comprises a discharge brush roller 14 rotatably connected to the bottom of the screening net disc 3, the discharge brush roller 14 is used for cleaning the shellfish in the screening hole 4, and the discharge brush roller 14 is fixedly connected with a driven bevel gear 15 at one end close to the rotating rod 12. The rotating rod 12 is fixedly connected with a driving bevel gear 16 engaged with the driven bevel gear 15. The cylinder body 2 is rotatably connected with a pushing-out brush roller 17 located above the screening net disc 3, which is used for pushing the shellfish out of the discharge port 5. The pushing-out brush roller 17 is provided with a cleaning drive motor at one end, which drives the pushing-out brush roller 17 to rotate, and the pushing-out brush roller 17 pushes the shellfish close to the discharge port 5 in the direction close to the discharge port 5.
[0045] In use, the rotating rod 12 rotates to drive the screening net disc 3 and the driving bevel gear 16 to rotate synchronously, the driving bevel gear 16 drives the driven bevel gear 15 to rotate, and the driven bevel gear 15 drives the discharge brush roller 14 to rotate, which pushes the shellfish stuck in the screening hole 4 upward, and the pushing-out brush roller 17 pushes the shellfish pushed out of the screening hole 4 in the direction close to the discharge port 5, thereby cleaning the shellfish filtered on the screening net disc 3, and reciprocating to improve the classification efficiency.
[0046] As shown in Figure 5 , the bottom classification storage bin 6 is downwardly inclined at the bottom, and the bottom classification storage bin 6 is provided with a bottom outlet 18 at the bottom end. The smaller shellfish falling through the screening hole 4 and into the bottom classification storage bin 6 is guided to slide to the bottom outlet 18 through the bottom classification storage bin 6, and is collected from the bottom outlet 18.
[0047] As shown in Figure 5 , the bottom outlet 18 and the discharge port 5 are both fixedly connected with a material guide groove 19, and the classified shellfish is guided out of the material guide groove 19 to the collection box for collection.
[0048] As Figure 6 shown, the upper end of the feeding port 8 is fixedly connected with a hopper 20, the lower end of the feeding port 8 is fixedly connected with a guide plate 21, the inside of the hopper 20 is slidably connected with an anti-blocking plate 22, the side of the anti-blocking plate 22 close to the inside of the hopper 20 is fixedly connected with an anti-blocking swing brush 23, an anti-blocking electric push rod is installed between the anti-blocking plate 22 and the hopper 20, the shellfish enters the inside of the hopper 20, the shellfish is evenly laid on the screening mesh disc 3 through the guide plate 21, the screening efficiency is improved, in use, the anti-blocking electric push rod reciprocatingly slides the anti-blocking plate 22, the shellfish blocked in the anti-blocking swing brush 23 is pushed, so that it is more easily dropped from the hopper 20, and the shellfish entering the inside of the hopper 20 is evenly dropped on the screening mesh disc 3.
[0049] The plurality of anti-blocking swing brushes 23 are arranged on the anti-blocking plate 22, and the anti-blocking swing brushes 23 are arranged obliquely, so that the shellfish blocked in the hopper 20 is more easily dropped.
[0050] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
[0051] In the description of the present application, it should be noted that the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0052] In addition, in the description of the present application, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.
[0053] In another aspect, it should be noted that unless specifically stated and limited otherwise, the terms "set in", "mounted", "connected", "linked" should be broadly understood, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
Claims
1. A fine grading device for shellfish in tidal flats, comprising a base, characterized in that, A hollow cylinder is provided above the base, and multiple longitudinally distributed grading and screening devices are provided inside the cylinder. The grading and screening device includes a screening screen plate fixedly connected inside the cylinder. The screening screen plate has a number of screening holes spaced apart. The cylinder has a number of discharge ports located on one side of the screening screen plate. The screening holes on the upper screening screen plate are larger than those on the lower screening screen plate. The screening holes are rectangular. A cleaning structure for removing shellfish from the screening screen plate is installed inside the cylinder. The cleaning structure is located on one side of the discharge ports. The base has a bottom grading and storage compartment, the top of the cylinder is equipped with a top plate with a feed inlet, and the screening screen is connected to a rotating drive component; the inside of the cylinder is equipped with multiple shellfish separation structures, which are located above the screening screen.
2. The fine grading equipment for intertidal shellfish according to claim 1, characterized in that, The shellfish separation structure includes a fixed plate fixedly connected to the inside of the cylinder, a cleaning scraper is provided on the fixed plate, and a shellfish separation brush is fixedly connected to the side of the cleaning scraper near the screening screen.
3. The fine grading equipment for intertidal shellfish according to claim 2, characterized in that, The fixed plate and the cleaning scraper are slidably connected, and a cleaning electric push rod for pushing the cleaning scraper to slide is fixedly installed on the fixed plate.
4. The fine grading equipment for intertidal shellfish according to claim 3, characterized in that, The cleaning scraper is equipped with a plurality of shellfish separation brushes, which are inclinedly arranged on the cleaning scraper.
5. The fine grading equipment for intertidal shellfish according to claim 1, characterized in that, The rotation drive component includes a rotating rod rotatably connected inside the cylinder, the rotating rod being fixedly connected to the screening screen, and a screening drive motor for driving the rotating rod to rotate being fixedly connected to the top plate.
6. The fine grading equipment for intertidal shellfish according to claim 5, characterized in that, The cleaning structure includes a discharge roller brush rotatably connected to the bottom of the screening screen, which is used to clean out the shellfish inside the screening holes. A driven bevel gear is fixedly connected to one end of the discharge roller brush near the rotating rod. A driving bevel gear meshing with the driven bevel gear is fixedly connected to the rotating rod. An ejection roller brush is rotatably connected inside the cylinder. The ejection roller brush is located above the screening screen and is used to eject the shellfish from the discharge port ejected by the ejection roller brush. A cleaning drive motor is provided at one end of the ejection roller brush.
7. The fine grading equipment for intertidal shellfish according to claim 1, characterized in that, The bottom tiered storage compartment is inclined downwards, and a bottom outlet is opened at the bottom of the bottom tiered storage compartment.
8. The fine grading equipment for intertidal shellfish according to claim 7, characterized in that, The bottom outlet and discharge port are both fixedly connected to a guide trough.
9. The fine grading equipment for intertidal shellfish according to claim 1, characterized in that, A hopper is fixedly connected to the upper end of the feed inlet, a guide plate is fixedly connected to the lower end of the feed inlet, an anti-blocking plate is slidably connected inside the hopper, an anti-blocking swing brush is fixedly connected to the side of the anti-blocking plate near the inside of the hopper, and an anti-blocking electric push rod is installed between the anti-blocking plate and the hopper.
10. The fine grading equipment for intertidal shellfish according to claim 9, characterized in that, Multiple anti-clogging oscillating brushes are spaced apart on the anti-clogging plate, and the anti-clogging oscillating brushes are inclined.
Citation Information
Patent Citations
Combine harvester for collecting and catching mudflat mactra veneriformis
CN221329915U