Mudflat razor clam picking and cleaning device

Abstract

The invention discloses a shoal razor clam collecting and cleaning device which comprises a razor clam collecting device and a razor clam propelling and cleaning device, the razor clam collecting device comprises razor clam digging fork teeth, a hollow conveying belt and a razor clam basket, and the razor clam propelling and cleaning device comprises two propelling propellers and a fluid pipeline; the shoal razor clam collecting and cleaning device can be pushed to advance on the shallow water shoal through the pushing and razor clam washing device so as to dig the sea razor clam; the fluid pipeline is in sealed connection with the back of the flushing area at the front end of the hollow conveying belt, the propelling propeller pushes seawater in the fluid pipeline backwards to push the shoal razor clam collecting and cleaning device to move forwards, and the seawater enters the fluid pipeline in an accelerated mode through the flushing area to flush silt attached to the razor clam in the flushing area. The shoal razor clam collecting and cleaning device not only can automatically walk in the shallow water shoal to collect the razor clam in the shoal, but also can flush the razor clam at the flow rate of seawater generated during propelling through the fluid pipeline, so that the structure of the cleaning mechanism is optimized, and the working efficiency of the shoal razor clam collecting and cleaning device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of marine product breeding, and in particular to a device for collecting and cleaning clams on mudflats. Background Art

[0002] As a shellfish with high economic value, razor clams play an important role in tidal flat aquaculture. Currently, the collection of razor clams on tidal flats faces many challenges.

[0003] Traditional razor clam collection methods mainly rely on manual operations. Clam collectors need to bend over for a long time to dig out clams one by one on the mudflats. This method is not only extremely labor-intensive, but also extremely inefficient. The amount of clams a skilled worker can collect in a day is limited, which is difficult to meet the harvesting needs of large-scale farming, seriously restricting the development speed and economic benefits of the razor clam farming industry.

[0004] Some existing clam collection devices have improved the difficulties of manual clam collection to a certain extent, but they still have obvious defects. These devices are relatively simple in structure, and most of them do not have the function of self-propelled movement, requiring workers to push them laboriously on the beach. However, the beach geology is soft, and the pushing process is extremely difficult, which increases the labor burden of workers and greatly reduces the convenience of operation, resulting in limited application scope of the device in actual use.

[0005] A more prominent problem is that the existing clam collection devices are mainly suitable for waterless mudflat environments. However, in actual razor clam farming scenarios, there are a large number of shallow mudflats, such as sea-enclosed aquaculture ponds, where the water level is usually around 1.2 meters. In such shallow mudflat environments, the existing clam collection devices cannot operate normally, making it difficult to collect the clams. There are abundant razor clam resources in shallow mudflats, but the lack of effective collection devices has caused a waste of resources and hindered aquaculture practitioners from fully developing and utilizing these mudflat resources to increase their profits.

[0006] In addition, when collecting razor clams, the existing clam collection devices will inevitably cause a large amount of mud and sand to be attached to the collected razor clams. In the subsequent processing process, they can only rely on manual washing, which not only consumes a lot of manpower and time costs, but also makes it difficult to ensure the consistency of the washing effect. The cumbersome washing process further reduces the overall efficiency of collecting razor clams, and increases the complexity and labor intensity of manual operation, becoming another bottleneck restricting the efficient collection and processing of razor clams.

[0007] In summary, developing a razor clam collection device that is efficient, convenient, adaptable to shallow water mudflat environments, and can reduce the adhesion of razor clam mud or has an automatic cleaning function is of great practical significance for improving the overall benefits of the razor clam farming industry. Summary of the invention

[0008] In view of the above problems, the present application provides a device for collecting razor clams and cleaning them on the tidal flat, which is used to solve the technical problems that the existing razor clam collection device is only used for the dry tidal flat, cannot move by itself, and requires manual flushing, etc.

[0009] To achieve the above object, the present application provides a device for collecting razor clams and cleaning them on the tidal flat, which is used for collecting and cleaning razor clams on the shallow tidal flat. The device for collecting razor clams and cleaning them on the tidal flat includes: Two skids, which are arranged in parallel on both sides of the bottom of the device for collecting razor clams and cleaning them on the tidal flat, and are used for sliding on the tidal flat; A razor clam collection device, including: a clam digging fork tooth, a hollow conveyor belt, and a razor clam basket; the clam digging fork tooth is arranged at the front end of the hollow conveyor belt and is used for obliquely inserting downward into the tidal flat to collect razor clams. The hollow conveyor belt is arranged in a front-low and rear-high inclined manner and is provided with a flushing area at the front end. The flushing area is evenly provided with a plurality of hollow grooves. The razor clam basket is arranged at the tail end of the hollow conveyor belt, and the razor clams are conveyed to the razor clam basket by the hollow conveyor belt; A propulsion and razor clam cleaning device, including: two propulsion propellers and a fluid pipeline. The fluid pipeline is arranged at the bottom of the device for collecting razor clams and cleaning them on the tidal flat and is located between the two skids. The fluid pipeline is formed by splicing a top plate, a bottom plate, and two side plates. The front end of the fluid pipeline extends to the front end of the hollow conveyor belt and is hermetically connected to the back of the flushing area; The two propulsion propellers are arranged side by side horizontally at the tail end of the fluid pipeline and are used for accelerating seawater to enter the fluid pipeline through the flushing area and pushing it backward, so as to propel the device for collecting razor clams and cleaning them on the tidal flat and flush the sediment attached to the razor clams in the flushing area.

[0010] Further, the two side plates of the fluid pipeline are arranged oppositely along the width direction of the device for collecting razor clams and cleaning them on the tidal flat. The side plates are right-angled trapezoidal plates, and the top plate is spliced with the top edge and the hypotenuse of the right-angled trapezoidal plate, so that the front opening of the fluid pipeline is smaller than the rear opening; The front parts of the two side plates are respectively provided with a fluid inlet and a corresponding second valve, and the front opening of the fluid pipeline is provided with a corresponding first valve; when the device for collecting razor clams and cleaning them on the tidal flat works in a non-razor clam collection straight running condition, both the first valve and the second valve are fully opened; when the device for collecting razor clams and cleaning them on the tidal flat works in a razor clam collection straight running condition, the first valve is opened and the second valve is closed; when the device for collecting razor clams and cleaning them on the tidal flat works in a razor clam collection turning condition, the first valve is opened, the second valve on the same side as the turning direction is opened, the second valve on the opposite side of the turning direction is closed, and the rotational speed of the propulsion propeller on the opposite side of the turning direction is greater than that of the other propulsion propeller.

[0011] Further, a hinge rod is provided on the dorsal side of the middle and rear part of the hollow conveyor belt. A connecting piece is provided on the top of the fluid pipeline. An arc-shaped chute is provided on the connecting piece. The hinge rod is connected to the arc-shaped chute, so that the inclination angle of the hollow conveyor belt can be adjusted to adjust the depth of the razor clam fork teeth inserted into the tidal flat. And the fluid pipeline is sequentially formed by splicing a fixed section, a flexible connection section and a swing front section from the rear to the front along the length direction. The flexible connection section is located in front of the connecting piece. The front end of the swing front section is fixedly connected to the flushing area and swings in the vertical direction corresponding to the change of the inclination angle of the hollow conveyor belt.

[0012] Further, the skateboard is arranged at the bottom of the bracket. Turning auxiliary components are respectively arranged on the outer sides of the two brackets. The turning auxiliary components include: a lifting rod and a resistance increasing plate. The top of the resistance increasing plate is fixedly connected to the lifting rod. Fork teeth are arranged at the bottom of the resistance increasing plate. The turning auxiliary components are used for driving the resistance increasing plate to move down and insert into the tidal flat when the turning radius is less than a preset value, so as to increase the sliding resistance of the tidal flat razor clam harvesting and cleaning device on the inner side of the turn.

[0013] Further, the razor clam basket is a hollow basket. A spray pipe is arranged on the top of the razor clam basket. The spray pipe is connected to a water pump. The water pump sucks seawater to wash the razor clams in the razor clam basket.

[0014] Further, a lithium battery is also included. The lithium battery is arranged in the upper middle part of the tidal flat razor clam harvesting and cleaning device and is used for supplying power to the tidal flat razor clam harvesting and cleaning device.

[0015] Further, both ends of the skateboard are bent upwards.

[0016] Further, a controller is also included. The controller is arranged on the top of the mounting rod on the top of the tidal flat razor clam harvesting and cleaning device. A safety guardrail is arranged at the rear of the controller.

[0017] Further, a plurality of convex strips are arranged at intervals along the length direction of the hollow conveyor belt. And low guard plates are arranged on both sides of the hollow conveyor belt along the width direction.

[0018] Further, buckles are arranged at the edges of the razor clam basket, and the razor clam basket is detachably connected to the tidal flat razor clam harvesting and cleaning device through the buckles.

[0019] Different from the prior art, the above-mentioned technical solution of the beach razor clam harvesting and cleaning device includes two skateboards, a razor clam harvesting device, and a propulsion and razor clam cleaning device. Among them, the razor clam harvesting device includes: a razor clam digging fork tooth, a hollow conveyor belt, and a razor clam basket. The propulsion and razor clam cleaning device includes two propulsion propellers and a fluid pipeline; the propulsion and razor clam cleaning device can push the beach razor clam harvesting and cleaning device to move forward on the shallow beach, so as to dig razor clams; and the fluid pipeline is hermetically connected to the back of the flushing area at the front end of the hollow conveyor belt. The propulsion propeller pushes the seawater in the fluid pipeline backward, thereby pushing the beach razor clam harvesting and cleaning device forward, and the seawater accelerates into the fluid pipeline through the flushing area, so as to flush the sediment attached to the razor clams in the flushing area. The beach razor clam harvesting and cleaning device can not only walk by itself in the shallow beach to harvest the razor clams therein, but also use the seawater flow velocity generated during propulsion to flush the razor clams through the fluid pipeline, greatly optimizing the structure of the cleaning mechanism and improving the working efficiency of the beach razor clam harvesting and cleaning device.

[0020] The above-mentioned related records of the invention content are only an overview of the technical solution of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of this application, and then can be implemented according to the content recorded in the text of the specification and the drawings, and in order to make the above-mentioned purpose, other purposes, features and advantages of this application more easily understood, the following is described in conjunction with the specific implementation manners and drawings of this application. Brief Description of the Drawings

[0021] The drawings are only used to show the principles, implementation methods, applications, features, and effects of the specific implementation manners of the present invention and other related contents, and should not be considered as a limitation to this application.

[0022] In the accompanying drawings of the specification: Figure 1 It is a schematic structural diagram of the beach razor clam harvesting and cleaning device described in the specific implementation manner; Figure 2 It is a front view of the beach razor clam harvesting and cleaning device described in the specific implementation manner; Figure 3 It is a schematic diagram of the beach razor clam harvesting and cleaning device described in the specific implementation manner with the fluid pipeline hidden; Figure 4 It is a schematic structural diagram of the fluid pipeline and the hollow conveyor belt described in the specific implementation manner; Figure 5 For Figure 2 A partial enlarged view of part A in

[0023] The description of the reference numerals involved in the above-mentioned drawings is as follows: 1. Propulsion propeller; 2. Skateboard; 3. Turning auxiliary component; 4. Hollow conveyor belt; 5. Fluid pipeline; 6. Controller; 7. Razor clam basket; 8. Safety guardrail; 9. Spray pipe; 11. Protective cover; 21. Bracket; 31. Lifting rod; 32. Resistance increasing plate; 33. Connecting rod; 40. Flushing area; 44. Hollow hole; 45. Rib; 41. Razor clam fork tooth; 42. Second articulated rod; 43. First articulated rod; 431. Arc-shaped chute; 50. Side plate; 51. Top plate; 52. Front end opening; 53. Second valve; 54. First valve; 501. Fixed section; 502. Flexible connection section; 503. Swing front section; Detailed implementation manners

[0024] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, etc., the following will be described in detail with reference to the specific examples listed and in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0025] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of this application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0026] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0027] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this article generally represents an "or" logical relationship between the associated objects before and after.

[0028] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary-secondary or order relationship, etc. between these entities or operations.

[0029] Without further limitations, in this application, the use of open-ended expressions such as "including", "comprising", "having" or other similar expressions in a statement is intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product that includes the said elements. Thus, in a process, method or product that includes a series of elements, it may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0030] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding" are understood not to include the number itself; expressions such as "above", "below", "within" are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0031] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the drawings. It is only for the convenience of describing the specific embodiments of this application or for the reader's understanding, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of this application.

[0032] Unless otherwise clearly specified or limited, in the description of the embodiments of this application, the terms such as "installed", "connected", "joined", "fixed", "set" should be understood in a broad sense. For example, the said "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art to which this application pertains, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0033] Please refer to Figures 1 to 5, this embodiment provides a beach razor clam harvesting and cleaning device. This beach razor clam harvesting and cleaning device can be used for harvesting and cleaning razor clams in shallow water beaches. This beach razor clam harvesting and cleaning device can move by itself in shallow water beaches, and during the moving process, it harvests razor clams in the beach and conducts a preliminary flushing of the razor clams to remove the sediment attached to the surface of the razor clams. Among them, the shallow water beach refers to a beach where the water level is lower than a certain height. For example, a beach where the water level is lower than 1.2 meters or lower than 1.5 meters.

[0034] As Figure 1 shown, in this embodiment, the beach razor clam harvesting and cleaning device includes two skids 2, a razor clam harvesting device, and a propulsion and cleaning device. Among them, the two skids 2 are arranged in parallel on both sides of the bottom of the beach razor clam harvesting and cleaning device, and are used for sliding on the beach. The skids 2 can increase the contact area with the beach and prevent the beach razor clam harvesting and cleaning device from sinking into the beach. The two skids 2 can be arranged on both sides of the bottom of the beach razor clam harvesting and cleaning device by brackets 21. The two ends of the skid 2 are bent upwards to prevent the end of the skid 2 from inserting into the beach when moving forward or backward.

[0035] As Figure 2 shown, the razor clam harvesting device includes: a clam digging fork tooth 41, a hollow conveyor belt 4, and a razor clam basket 7; the clam digging fork tooth 41 is arranged at the front end of the hollow conveyor belt 4 and is used for obliquely inserting downwards into the beach to collect razor clams. The hollow conveyor belt 4 is arranged in a front-low and rear-high inclined manner and is provided with a flushing area 40 at the front end. The flushing area 40 is evenly provided with a plurality of hollow grooves. The razor clam basket 7 is arranged at the rear end of the hollow conveyor belt 4, and the razor clams are conveyed to the razor clam basket 7 by the hollow conveyor belt 4. Among them, the clam digging fork tooth 41 is provided with a plurality of fork teeth at intervals in the width direction, and the distance between two adjacent fork teeth is less than the thickness of the razor clam (for example, 1 cm). Therefore, when the clam digging fork tooth 41 inserts into the beach and moves forward, the razor clams in the beach can be dug out, and the sediment can pass through the gaps between the fork teeth. The harvested razor clams enter the hollow conveyor belt 4. As Figure 5 shown, the surface of the hollow conveyor belt 4 is provided with hollow holes 44, and a flushing area 40 is provided at the front end of the hollow conveyor belt 4. The hollow conveyor belt 4 can be a metal conveyor belt with hollow holes or a rubber conveyor belt with hollow holes. The setting of the hollow holes 44 can, on the one hand, reduce the forward resistance of the beach razor clam harvesting and cleaning device, and on the other hand, allow seawater to pass through to clean the razor clams. Among them, the flushing area 40 at the front end of the hollow conveyor belt 4 can be fixedly arranged with the clam digging fork tooth 41 (that is, the flushing area 40 does not move), while the hollow conveyor belt 4 behind the flushing area 40 can be driven by guide wheels to operate, so as to convey the razor clams into the razor clam basket 7.

[0036] As Figure 3 and Figure 4As shown, the propulsion and clam washing device comprises: two propulsion propellers 1 and a fluid pipeline 5, wherein the fluid pipeline 5 is arranged at the bottom of the mudflat clam collecting and washing device and is located between the two slide plates 2, and the fluid pipeline 5 is formed by splicing a top plate 51, a bottom plate and two side plates 50, and the front end of the fluid pipeline 5 extends to the front end of the hollow conveyor belt 4 and abuts against and is sealed with the back of the washing area 40. The two propulsion propellers 1 are arranged side by side at the tail end of the fluid pipeline 5 in the horizontal direction, and are used to accelerate the seawater to enter the fluid pipeline 5 through the washing area 40 and push it backward, so as to propel the mudflat clam collecting and washing device and wash the mud and sand attached to the clams in the washing area 40. A protective cover 11 is arranged at the rear end of the propulsion propeller 1 to prevent objects from entering the propulsion propeller 1. Among them, the propulsion propeller 1 can be driven to rotate by a motor. In order to prevent seawater from entering the motor, the motor needs to be waterproofed as necessary. In some embodiments, the motor can be arranged on the upper part of the mudflat clam collecting and cleaning device so that it is located above the sea water, and the motor is connected to the propulsion propeller 1 through a transmission shaft.

[0037] In this embodiment, the propulsion and clam washing device simultaneously performs the function of propulsing the beach clam collection and cleaning device (i.e., the self-propelled function) and the function of washing the clams. Among them, the propulsion propeller 1 is arranged at the tail end of the fluid pipeline 5, and the front end of the fluid pipeline 5 is sealed and connected to the back of the washing area 40. Therefore, when the propulsion propeller 1 is working, the seawater in the fluid pipeline 5 is pushed backward, so that the beach clam collection and cleaning device obtains the power to move forward; and when the seawater in the fluid pipeline 5 is pushed backward, a large amount of seawater enters the fluid pipeline 5 through the washing area 40, so that the seawater that has just been collected can be washed by accelerating the seawater flowing through the washing area 40, thereby removing the mud and sand attached to its surface. Therefore, in the embodiment, by cleverly setting the structure and connection relationship of the fluid pipeline 5, the propulsion propeller 1 and the washing area 40, the functions of propulsion and washing can be achieved at the same time.

[0038] like Figure 1 As shown, the clam basket 7 is a hollow basket, and a spray pipe 9 is provided on the top of the clam basket 7, and the spray is connected to a water pump, and the water pump sucks seawater to wash the clams in the clam basket 7. Therefore, the clams collected in the clam basket 7 can be washed twice through the spray pipe 9.

[0039] In this embodiment, the beach razor clam harvesting and cleaning device further includes a lithium battery and a controller 6. The lithium battery is arranged in the upper middle part of the beach razor clam harvesting and cleaning device and is used to supply power to the beach razor clam harvesting and cleaning device. The controller 6 is arranged at the top of the mounting rod at the top of the beach razor clam harvesting and cleaning device, and a safety guardrail 8 is arranged at the rear of the controller 6. Various function buttons for traveling and harvesting razor clams (such as forward button, left turn button, right turn button, angle adjustment button, etc.) are arranged on the controller 6. In one embodiment, buckles are arranged on the edge of the razor clam basket 7, and the razor clam basket 7 is detachably connected to the beach razor clam harvesting and cleaning device through the buckles. Therefore, when the razor clam basket 7 is full, another empty basket can be quickly replaced.

[0040] As Figure 1 and Figure 4 shown, the two side plates 50 of the fluid pipeline 5 are arranged opposite to each other along the width direction of the beach razor clam harvesting and cleaning device. The side plates 50 are right-angled trapezoidal plates, and the top plate 51 is spliced with the top edge and the hypotenuse of the right-angled trapezoidal plate, so that the front end opening 52 of the fluid pipeline 5 is smaller than the rear end opening. Therefore, in this embodiment, the seawater flow rate in the fluid pipeline 5 is greater than that at the rear end, so as to improve the flushing strength of the sea razor clams in the flushing area 40.

[0041] As Figure 4 shown, a fluid inlet and a corresponding second valve 53 are respectively arranged at the front parts of the two side plates 50, and a corresponding first valve 54 is arranged at the front end opening 52 of the fluid pipeline 5; when the beach razor clam harvesting and cleaning device works in a non-harvesting straight running condition, both the first valve 54 and the second valve 53 are fully opened; when the beach razor clam harvesting and cleaning device works in a harvesting straight running condition, the first valve 54 is opened and the second valve 53 is closed; when the beach razor clam harvesting and cleaning device works in a harvesting turning condition, the first valve 54 is opened, the second valve 53 on the same side as the turning direction is opened, the second valve 53 on the opposite side of the turning direction is closed, and the rotation speed of the propulsion propeller 1 on the opposite side of the turning direction is greater than that of the other propulsion propeller 1.

[0042] Among them, both the first valve 54 and the second valve 53 are provided with driving devices (the driving devices can be linear reciprocating motion devices such as cylinders and linear motors), and the first valve 54 and the second valve 53 can be driven to open or close through the driving devices. In this embodiment, setting the first valve 54 and the second valve 53 can improve the turning flexibility of the beach razor clam harvesting and cleaning device, so as to reduce the turning radius, and in the working condition of only walking without harvesting razor clams, reduce the resistance of seawater during walking. Since the front parts of the side plates 50 are respectively provided with inlets and corresponding second valves 53, when the beach razor clam harvesting and cleaning device works in the non-harvesting straight running condition (at this time, the clam digging fork teeth 41 are not inserted into the beach, and the beach razor clam harvesting and cleaning device runs straight without turning), the first valve 54 and the second valve 53 are both fully opened, so seawater can enter from the front end and both sides of the fluid pipeline 5, thereby reducing the resistance of seawater entry. When the beach razor clam harvesting and cleaning device works in the harvesting straight running condition, the first valve 54 is opened and the second valve 53 is closed; at this time, all the seawater entering the fluid pipeline 5 has to pass through the flushing area 40, so as to ensure the flushing efficiency. When turning is required, the second valve 53 on the same side as the turning direction is opened, the second valve 53 on the opposite side of the turning direction is closed, and the rotation speed of the propulsion propeller 1 on the opposite side of the turning direction is greater than that of the other propulsion propeller 1, thereby reducing the turning radius. For example, when the beach razor clam harvesting and cleaning device turns right, the second valve 53 on the right side is opened, the second valve 53 on the left side is closed, and the rotation speed of the propulsion propeller 1 on the right side is less than that of the propulsion propeller 1 on the left side (even the propulsion propeller 1 on the right side can stop working). At this time, seawater is sucked in from the second valve 53 on the right side, so that the front part of the beach razor clam harvesting and cleaning device has a rightward thrust; and the rotation speed of the propulsion propeller 1 on the right side is less than that of the propulsion propeller 1 on the left side, so that the tail of the beach razor clam harvesting and cleaning device obtains a leftward component force (the other component force is a forward thrust), and under the action of these two forces, the beach razor clam harvesting and cleaning device turns right with a smaller turning radius.

[0043] When the turning radius of the beach razor clam harvesting and cleaning device is large, it is very difficult to accurately cover the entire beach during harvesting, and many unharvested fragmented areas are easily left during turning. Therefore, as Figure 1 、 Figure 2 and Figure 3As shown, in one embodiment, in order to further reduce the turning radius of the beach razor clam harvesting and cleaning device, a turning assist component 3 is also provided. The turning assist component 3 is arranged on the outer side of the bracket 21, that is, a turning assist component 3 is arranged on both sides in the width direction of the beach razor clam harvesting and cleaning device. The turning assist component 3 includes: a lifting rod 31 and a resistance increasing plate 32. The top of the resistance increasing plate 32 is fixedly connected to the lifting rod 31, and the bottom of the resistance increasing plate 32 is provided with fork teeth. The turning assist component 3 is used to drive the resistance increasing plate 32 to move downward and insert into the beach when the turning radius is less than a preset value, so as to increase the sliding resistance of the beach razor clam harvesting and cleaning device on the inner side of the turn.

[0044] Among them, the resistance increasing plate 32 is used to increase the sliding resistance on the corresponding side. The resistance increasing plate 32 is vertically arranged, and the width direction of the resistance increasing plate 32 is the same as the width direction of the beach razor clam harvesting and cleaning device, that is, the width direction of the resistance increasing plate 32 is perpendicular to the sliding direction, so as to increase its force-bearing area with the beach. The width and height of the resistance increasing plate 32 can be set according to the size of the beach razor clam harvesting and cleaning device. For example, in one embodiment, the resistance increasing plate 32 is made of a steel plate with a width of 25 cm and a height of 50 cm, and wavy fork teeth are arranged at the bottom of the resistance increasing plate 32 to facilitate insertion into the beach. The lifting rod 31 can be driven by a linear reciprocating motion mechanism such as a cylinder or a linear motor. The housing of the linear reciprocating motion mechanism is connected to the bracket through a connecting rod 33. When the lifting rod 31 is driven to descend, the resistance increasing plate 32 can be inserted into the beach. The descending distance of the lifting rod 31 is adjustable, so that the depth of the resistance increasing plate 32 inserted into the beach is adjustable. Therefore, the resistance obtained by the resistance increasing plate 32 also changes accordingly.

[0045] As Figure 4 shown, in one embodiment, in order to adjust the depth of the clam digging fork teeth 41 inserted into the beach, the inclination angle of the hollow conveyor belt 4 is adjustable. When the inclination angle of the hollow conveyor belt 4 is increased, the distance that the clam digging fork teeth 41 extend downward beyond the slide plate 2 also increases accordingly, and thus the depth of its insertion into the beach also increases accordingly. A hinge rod 43 is arranged on the back side of the middle and rear part of the hollow conveyor belt 4. A connecting piece is arranged on the top of the fluid pipeline 5, and an arc-shaped chute 431 is arranged on the connecting piece. The hinge rod 43 is connected to the arc-shaped chute 431 to make the inclination angle of the hollow conveyor belt 4 adjustable to adjust the depth of the clam digging fork teeth 41 inserted into the beach.

[0046] Since in this embodiment, the front end of the fluid pipeline 5 is hermetically connected to the back of the flushing area 40, in order to adapt to the adjustment of the inclination angle of the hollow conveyor belt 4, the fluid pipeline 5 is arranged as a segmented structure along the length direction, and the front segment is swingable in the vertical direction. As Figure 4As shown, the fluid pipeline 5 is formed by splicing a fixed section 501, a flexible connection section 502, and a swinging front section 503 in sequence from back to front along the length direction. The flexible connection section 502 is located in front of the connection piece; the front end of the swinging front section 503 is fixedly connected to the flushing area 40 and swings in the vertical direction corresponding to the change in the inclination angle of the hollow conveyor belt 4. The flexible connection section 502 can be made of flexible waterproof materials such as canvas and rubber. A second hinge rod 42 is provided at the top of the rear end of the swinging front section 503, and a corresponding chute is provided on the support 21. The rear end of the swinging front section 503 can be hinged to the support 21 through the second hinge rod 42, and the front end of the swinging front section 503 is fixedly and sealingly connected to the back of the flushing area 40. Therefore, when the inclination angle of the hollow conveyor belt 4 is adjusted, the swinging front section 503 can rotate around the second hinge rod 42 and thus swing correspondingly with the hollow conveyor belt 4.

[0047] In one embodiment, in order to facilitate lifting the razor clams into the clam basket 7, a plurality of ridges 45 are arranged at intervals along the length direction of the hollow conveyor belt 4. The ridges 45 can prevent the razor clams from sliding down in the inclined hollow conveyor belt 4. And short guard plates are arranged on both sides of the hollow conveyor belt 4 in the width direction. The short guard plates can prevent the razor clams from falling from both sides of the hollow conveyor belt 4.

[0048] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of this application, the patent protection scope of this application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification using the content recorded in the text and drawings of the specification of this application based on the essential concept of this application, as well as the technical solutions of the above embodiments directly or indirectly implemented in other related technical fields, are all included in the patent protection scope of this application.

Claims

1. A device for collecting and cleaning razor clams on mudflats, characterized in that: Used for collecting and cleaning clams in shallow water, including: Two slide plates are arranged parallel to each other on both sides of the bottom of the device for collecting and cleaning razor clams on the beach, and are used for sliding on the beach; A device for collecting razor clams comprises: a razor clam digging fork, a hollow conveyor belt and a razor clam basket; the razor clam digging fork is arranged at the front end of the hollow conveyor belt, and is used to be inserted obliquely downward into the mudflat to collect razor clams; the hollow conveyor belt is arranged obliquely with a low front and a high tail, and a washing area is arranged at the front end, and the washing area is evenly provided with a plurality of hollow grooves; the razor clam basket is arranged at the tail end of the hollow conveyor belt, and the razor clams are conveyed to the razor clam basket by the hollow conveyor belt; A propulsion and clam washing device, comprising: two propulsion propellers and a fluid pipeline, wherein the fluid pipeline is arranged at the bottom of the mudflat clam collecting and washing device and is located between the two slide plates, and the fluid pipeline is formed by splicing a top plate, a bottom plate and two side plates, and the front end of the fluid pipeline extends to the front end of the hollow conveyor belt and is sealed and connected to the back of the washing area; The two propulsion propellers are arranged horizontally side by side at the tail end of the fluid pipeline to accelerate seawater into the fluid pipeline through the flushing area and push it backwards to propel the mudflat clam collecting and cleaning device and flush the mud and sand attached to the clams in the flushing area.

2. The device for collecting and cleaning razor clams on mudflats according to claim 1, characterized in that: The two side plates of the fluid conduit are arranged opposite to each other along the width direction of the mudflat clam collecting and cleaning device, the side plates are right-angled trapezoidal plates, and the top plate is spliced ​​with the top edge and the oblique edge of the right-angled trapezoidal plate, so that the front end opening of the fluid conduit is smaller than the rear end opening; The front parts of the two side panels are respectively provided with an inlet and a corresponding second valve, and the front end opening of the fluid pipeline is provided with a corresponding first valve; when the mudflat clam collecting and cleaning device is working in a non-clam collecting straight-moving condition, the first valve and the second valve are both fully opened; when the mudflat clam collecting and cleaning device is working in a clam collecting straight-moving condition, the first valve is opened and the second valve is closed; when the mudflat clam collecting and cleaning device is working in a clam collecting turning condition, the first valve is opened, the second valve on the same side of the turning direction is opened, the second valve on the opposite side of the turning direction is closed, and the rotation speed of the propulsion propeller on the opposite side of the turning direction is greater than the rotation speed of the other propulsion propeller.

3. The device for collecting and cleaning razor clams on mudflats according to claim 2, characterized in that: A hinged rod is provided on the back side of the middle and rear part of the hollow conveyor belt, a connecting piece is provided on the top of the fluid pipeline, an arc-shaped slide groove is provided on the connecting piece, and the hinged rod is connected to the arc-shaped slide groove, so that the inclination angle of the hollow conveyor belt can be adjusted to adjust the depth of the fork teeth of the razor clam digging into the mudflat; The fluid pipeline is extended in a direction from back to front by a fixed section, a flexible connecting section and a swinging front section, wherein the flexible connecting section is located in front of the connecting piece; the front end of the swinging front section is fixedly connected to the flushing area, and swings in the vertical direction correspondingly with the change of the inclination angle of the hollow conveyor belt.

4. The device for collecting and cleaning razor clams on mudflats according to claim 2, characterized in that: The skateboard is arranged at the bottom of the bracket, and turning assistance components are respectively arranged on the outer sides of the two brackets. The turning assistance components include: a lifting rod and a resistance-increasing plate. The top of the resistance-increasing plate is fixedly connected to the lifting rod, and the bottom of the resistance-increasing plate is provided with fork teeth. The turning assistance component is used for the lifting rod on the inner side of the turn to drive the resistance-increasing plate to move down and insert into the mudflat when the turning radius is less than a preset turning radius, so as to increase the sliding resistance of the mudflat clam collecting and cleaning device on the inner side of the turn.

5. The device for collecting and cleaning razor clams on mudflats according to claim 2, characterized in that: The clam basket is a hollow basket. A spray pipe is arranged on the top of the clam basket. The spray pipe is connected to a water pump. The water pump draws seawater to wash the clams in the clam basket.

6. The device for collecting and cleaning razor clams on mudflats according to claim 1, characterized in that: It also includes a lithium battery, which is arranged in the upper middle part of the beach clam collecting and cleaning device and is used to supply power to the beach clam collecting and cleaning device.

7. The device for collecting and cleaning razor clams on mudflats according to claim 1, characterized in that: Both ends of the slide plate are bent upward.

8. The device for collecting and cleaning razor clams on mudflats according to claim 1, characterized in that: The device also comprises a controller, which is arranged on the top of a mounting rod on the top of the mudflat clam collecting and cleaning device, and a safety guardrail is arranged at the rear of the controller.

9. The device for collecting and cleaning razor clams on mudflats according to claim 1, characterized in that: The hollow conveyor belt is provided with a plurality of convex strips at intervals along the length direction, and short guard plates are provided on both sides of the hollow conveyor belt along the width direction.

10. The device for collecting and cleaning razor clams on mudflats according to claim 1, characterized in that: The edge of the clam basket is provided with buckles, and the buckles are used to realize detachable connection with the beach clam collecting and cleaning device.

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