An unmanned ship for cleaning waterborne floating objects of a ship chamber of a ship lift

Abstract

This utility model relates to the field of floating debris removal equipment, specifically disclosing an unmanned floating debris removal vessel for cleaning floating debris from a ship lift's cargo hold. It includes a hull with a receiving inlet, a transfer bucket detachably mounted on the hull and used in conjunction with the receiving inlet, a rotating bucket mounted on the side of the receiving inlet away from the transfer bucket and hinged to the receiving inlet, and a drive component mounted on the hull for controlling the rotation of the rotating bucket around the Z-axis. This utility model effectively reduces damage caused during floating debris removal and significantly extends its service life.

Description

Technical Field

[0001] This utility model relates to the field of floating debris removal equipment, and more specifically, to an unmanned floating debris removal vessel for cleaning floating debris from the ship lift's cargo box. Background Technology

[0002] During the flood season, as ships enter and exit the ship lift, floating debris can easily enter along with them. This debris can seriously affect the ship lift equipment, such as getting stuck in the navigation gate, the seals on the end faces of the lock gates, and the rubber joints of the docking devices, causing water leakage and thus affecting the safe and stable operation of the ship lift.

[0003] The currently disclosed automatic cleaning device and method for floating debris in waterways, with publication number CN109204723A, includes a hull, a push bucket for collecting floating debris installed at the front of the hull, a communication antenna fixedly installed on the top of the hull, a garbage bin detachably installed on the hull at the end where the push bucket is located, a searchlight, an ultrasonic radar, a camera device and an alarm light installed on the top of the hull, an anti-drift structure to prevent garbage from floating out at the inlet of the garbage bin, and a communication antenna connected to a remote control device on shore via wireless or wired means.

[0004] Regarding the aforementioned technologies, since floating objects tend to float on the edge of the ship lift, and the bucket is prone to colliding with the inner wall of the ship lift during the process of the ship clearing the floating objects from the edge, the bucket may be damaged. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an unmanned floating debris cleaning vessel for cleaning floating debris from the ship lift's cargo box, which will effectively reduce the damage caused by cleaning floating debris and greatly improve its service life;

[0006] The solution adopted by this utility model to solve the technical problem is:

[0007] An unmanned floating debris removal vessel for cleaning floating debris from a ship lift's cargo box includes a hull with a receiving port, a transfer bucket detachably mounted on the hull and used in conjunction with the receiving port, a rotating bucket mounted on the side of the receiving port away from the transfer bucket and hinged to the receiving port, and a drive unit mounted on the hull for controlling the rotation of the rotating bucket around the Z-axis.

[0008] During movement, the two sets of rotating buckets rotate towards each other under the drive of the drive components, thereby closing the two sets of rotating buckets; reducing the space occupied by the rotating buckets and avoiding collisions with the edges of other equipment (ship lifts) that could cause damage.

[0009] During normal cleaning, driven by the drive unit, the two sets of rotating buckets open, and the floating objects pass through the channel formed between the two sets of rotating buckets and the collection port in sequence before entering the transfer bucket for collection.

[0010] After a certain amount of floating debris is collected, the two sets of rotating buckets retract, and then the floating debris collected in the transfer bucket is transferred. At this time, the retraction of the rotating buckets will effectively prevent the floating debris in the channel and the receiving port from floating outside the ship, which greatly improves the cleaning efficiency.

[0011] In some possible implementations, to prevent the rotating bucket from colliding with other equipment or objects during the floating debris removal process, anti-collision wheels are provided on the outer side of the rotating bucket; the anti-collision wheels are located on the side of the rotating bucket away from the receiving hopper; and guide wheels are provided on the side of the hull away from the rotating head.

[0012] In some possible implementations, in order to effectively collect and transfer the cleaned floating debris, a cleaning chamber for installing a transfer bucket is provided on the hull; the receiving port includes an inlet with a fixed bucket installed inside, and a cleaning channel located between the inlet and the cleaning chamber and communicating with both the inlet and the cleaning chamber respectively.

[0013] In some possible implementations, to facilitate the entry of floating objects into the transfer hopper, the inlet is shaped like an octagon, with the larger end of the inlet located on the side closer to the rotating hopper; there are two sets of fixed hoppers installed on the inner side of the inlet; the two sets of fixed hoppers are symmetrically arranged along the Y-axis.

[0014] The rotating buckets are arranged in two sets, each corresponding to a fixed bucket. The ends of the two fixed buckets furthest from the cleaning chamber are hinged to the rotating buckets. When the rotating buckets are open, the inner surfaces of the rotating buckets and the inner surfaces of the fixed buckets are coplanar.

[0015] In some possible implementations, in order to effectively drive the rotating bucket by means of a drive member; the drive member is in two sets and is arranged one-to-one with the rotating bucket, one end of the drive member is hinged to the inner side of the rotating bucket and the other end is hinged to the hull; the drive member is an electric cylinder.

[0016] In some possible implementations, in order to effectively prevent hard contact and collision with other equipment at the end of the two sets of rotating buckets away from the fixed bucket, a protective plate is provided on the side of the rotating bucket away from the fixed bucket; the protective plate is made of a flexible material.

[0017] In some possible implementations, in order to effectively achieve the detachable installation of the transfer bucket and the hull, the transfer bucket includes a collection frame located inside the cleaning chamber and having a collection cavity, and an abutment frame installed on the collection frame for supporting the collection frame.

[0018] A doorway is formed between the side of the collection frame near the cleaning channel and the bottom of the collection frame; a leak-proof mesh is provided on the doorway to close the doorway and to be hinged to the collection frame.

[0019] In some possible implementations, the transfer bucket further includes multiple sets of traction ropes for use with the collection frame; a first lifting lug for use with the traction ropes is provided on the top surface of the collection frame; the traction ropes and the first lifting lugs are arranged in a one-to-one correspondence.

[0020] In some possible implementations, the leak-proof mesh is hinged to the bottom surface of the doorway; a second lifting lug is provided on the side of the leak-proof mesh away from the bottom of the collection frame;

[0021] The first lifting lug includes a lifting lug A located on the same side as the door opening and a lifting lug B located on a different side from the door opening;

[0022] One end of the traction rope used in conjunction with lug B is connected to lug B;

[0023] One end of the traction rope used in conjunction with lug A passes through lug A and connects to the second lug.

[0024] In some possible implementations, the collection frame includes a frame and a perforated plate mounted on the side of the frame to form a collection cavity; the abutment frame is mounted on the top of the frame.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] This utility model utilizes a driving component to drive the rotating bucket to retract, thereby protecting the rotating bucket and preventing it from colliding with the edges of other equipment or objects (ship lifts) during the movement of the ship.

[0027] When it is necessary to remove floating objects, the drive unit drives the rotating bucket to open, guiding the floating objects on the water surface into the transfer bucket, which significantly improves the capture efficiency of floating objects.

[0028] By using anti-collision wheels, the device moves along the edge of other equipment (ship lift) under the traction of the anti-collision wheels, thereby preventing damage to the rotating bucket during the collection of floating objects.

[0029] By cooperating with the anti-collision wheel and the guide wheel, when the hull 1 moves along the edge of other equipment (ship lift), the guide wheel and the anti-collision wheel respectively fit into the edge of the equipment, thus making the hull movement process smoother. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2This is a top view of the present invention;

[0032] Figure 3 This is a schematic diagram showing the connection relationship between the rotating bucket, the receiving port, the hull, and the transfer bucket in this utility model.

[0033] Figure 4 This is a cross-sectional view of the present invention;

[0034] Figure 5 This is a schematic diagram showing the connection relationship between the image acquisition device, the fixed frame, the rotating motor, and the rotating cylinder in this utility model;

[0035] in:

[0036] 1. Hull;

[0037] 11. Material receiving port; 111. Fixed hopper; 112. Cleaning channel; 13. Lifting rod;

[0038] 2. Transfer bucket;

[0039] 21. Collection box;

[0040] 211. Lifting lug A; 212. Lifting lug B; 22. Abutment frame; 23. Leak-proof netting; 231. Second lifting lug; 24. Traction rope;

[0041] 3. Rotating bucket;

[0042] 4. Drive components;

[0043] 5. Anti-collision wheels;

[0044] 6. Protective panels;

[0045] 7. Guide wheel;

[0046] 8. Image acquisition device;

[0047] 81. Mounting frame; 82. Rotating cylinder; 83. Rotating motor; 84. Underwater camera. Detailed Implementation

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] The present invention will now be described in detail.

[0050] like Figures 1-5 As shown:

[0051] An unmanned floating debris removal vessel for cleaning floating debris from a ship lift's cargo hold includes a hull 1 with a receiving port 11, a transfer bucket 2 detachably mounted on the hull 1 and used in conjunction with the receiving port 11, a rotating bucket 3 mounted on the side of the receiving port 11 away from the transfer bucket 2 and hinged to the receiving port 11, and a drive unit 4 mounted on the hull 1 for controlling the rotation of the rotating bucket 3 around the Z-axis; the rotating bucket 3 consists of two sets and is symmetrically arranged along the Y-axis.

[0052] During movement, the two sets of rotating buckets 3 rotate around the axis towards one side under the drive of the drive component 4, thereby closing the two sets of rotating buckets 3; reducing the space occupied by the rotating buckets 3 and avoiding collisions with the edges of other equipment (ship lifts) that could cause damage;

[0053] During normal cleaning, driven by the drive unit 4, the two sets of rotating buckets 3 open, and the floating objects pass through the channel formed between the two sets of rotating buckets 3 and the receiving port 11 in sequence before entering the transfer bucket 2 for collection.

[0054] After a certain amount of floating debris is collected, the two sets of rotating buckets 3 are brought together, and then the floating debris collected in the transfer bucket 2 is transferred. At this time, the gathering of rotating buckets 3 will effectively prevent the floating debris in the channel and the receiving port 11 from floating outside the hull 1, which greatly improves the cleaning efficiency.

[0055] In some possible implementations, to prevent the rotating bucket 3 from colliding with other equipment or objects during the floating debris removal process, anti-collision wheels 5 are provided on the outer side of the rotating bucket 3; the anti-collision wheels 5 are located on the side of the rotating bucket 3 away from the receiving hopper;

[0056] Since the rotating bucket 3 is located on the outside of the hull 1, the distance between the two sets of rotating buckets 3 away from the end of the hull 1 will be greater than the width of the hull 1 along the X-axis. This makes it easy for the rotating bucket 3 to come into contact with other equipment (ship lift) during the floating debris removal process. The anti-collision wheel 5 will ensure that in the event of a collision, the rotating bucket 3 will first come into contact with the anti-collision wheel 5, thereby avoiding collision and reducing the probability of damage to the rotating bucket 3.

[0057] Furthermore, a guide wheel 7 is fixedly connected to the end of the hull 1 away from the rotating bucket 3; such as Figure 1 As shown, there are two sets of guide wheels 7, which are symmetrically arranged along the Y-axis. The outer surfaces of the guide wheels 7 and the anti-collision wheels 5 on the same side are parallel to the outer surfaces of the hull 1 along the Y-axis. By cooperating with the guide wheels 7 and the anti-collision wheels 5, when the hull 1 moves along the edge of other equipment (ship lift), the guide wheels 7 and the anti-collision wheels 5 respectively fit against the edge of other equipment (ship lift), thereby making the movement of the hull 1 smoother.

[0058] In some possible implementations, in order to effectively collect and transfer the cleaned floating debris, a cleaning chamber for installing the transfer bucket 2 is provided on the hull 1; the receiving port 11 includes an inlet with a fixed bucket 111 installed inside, and a cleaning channel 112 located between the inlet and the cleaning chamber and connected to both the inlet and the cleaning chamber respectively.

[0059] During the cleaning process, the floating debris first enters the channel between the two sets of rotating buckets 3, and under the drive of the water flow, it enters the transfer bucket 2 installed in the cleaning chamber through the inlet and cleaning channel 112.

[0060] In some possible implementations, in order to facilitate the entry of floating objects into the transfer bucket 2, the inlet has an eight-shaped structure, with the larger end of the inlet located on the side close to the rotating bucket 3; the fixed buckets 111 are in two sets and installed on the inner side of the inlet; the two sets of fixed buckets 111 are symmetrically arranged along the Y-axis.

[0061] The rotating buckets 3 are arranged in two sets, corresponding one-to-one with the fixed buckets 111. The ends of the two sets of fixed buckets 111 furthest from the cleaning chamber are respectively hinged to the rotating buckets 3. When the rotating buckets 3 are opened, the inner surfaces of the rotating buckets 3 and the inner surfaces of the fixed buckets 111 are coplanar. This makes the channel formed between the two sets of rotating buckets 3 also have a figure-eight structure, and is coaxial with the figure-eight structure formed by the two sets of fixed buckets 111. This makes it easier for floating objects to enter the cleaning channel 112 under the action of water flow.

[0062] In some possible implementations, in order to effectively drive the rotating bucket 3 by means of the drive member 4; the drive member 4 is in two sets and is arranged one-to-one with the rotating bucket 3, one end of the drive member 4 is hinged to the inner side of the rotating bucket 3 and the other end is hinged to the hull 1; the drive member 4 is an electric cylinder.

[0063] Specifically, the electric cylinder is an existing product. When implementing this utility model, an electric cylinder that meets the requirements can be selected and assembled according to the size of the hull 1. During assembly, one end of the electric cylinder is hinged to the inner side of the rotating bucket 3 and the other end is hinged to the hull 1. Since the rotating bucket 3 is hinged to the fixed bucket 111, when the telescopic end of the electric cylinder extends, the rotating bucket 3 will rotate around the hinge point of the other fixed buckets 111 and move outward to open, and conversely, it will move inward to close.

[0064] In some possible implementations, in order to effectively avoid hard contact and collision with other equipment at the end of the two sets of rotating buckets 3 away from the fixed bucket 111, a guard plate 6 made of flexible material is provided on the side of the rotating bucket 3 away from the fixed bucket 111.

[0065] The guard plate 6 is located on the side of the rotating bucket 3 away from the fixed bucket 111, which prevents the free end of the rotating bucket 3 from colliding with the edges of other equipment objects (ship lift) during the cleaning process, and further protects the rotating bucket 3.

[0066] Furthermore, anti-collision strips are installed on the outer side of the hull 1. The installation of anti-collision strips will effectively prevent the outer side of the hull 1 from colliding with the edges of other equipment or objects (ship lift) and causing damage.

[0067] In some possible implementations, in order to effectively achieve the detachable installation of the transfer bucket 2 and the hull 1, the transfer bucket 2 includes a collection frame 21 located in the cleaning chamber and having a collection cavity, and an abutment frame 22 installed on the collection frame 21 and used to support the collection frame 21.

[0068] Furthermore, the cleaning chamber includes a lower chamber for installing the collection frame 21 and an upper chamber coaxially connected to the lower chamber and forming a support surface. The abutment frame 22 is located in the upper chamber and supported by the support surface. The collection frame 21 is located in the lower chamber and its top is connected to the abutment frame 22.

[0069] This method suspends the collection box 21 in the lower compartment by relying on its own weight, making it more convenient to transport without the need for other disassembly procedures.

[0070] Furthermore, the collection frame 21 can be fixed by setting up plug-ins. The plug-ins include a slot on the inner side of the upper compartment and a plug on the abutment frame 22 that is inserted into the slot. The plug and the abutment frame 22 are slidably engaged. After the abutment frame 22 is installed on the support surface, the plug is inserted into the slot to restrict the movement of the transfer bucket 2 in the Z-axis direction.

[0071] In some possible implementations, to facilitate the entry of floating objects into the transfer hopper 2 under the action of water flow, a doorway is formed between the side of the collection frame 21 near the cleaning channel 112 and the bottom of the collection frame 21; a leak-proof net 23 is provided on the doorway to close the doorway and to be hinged to the collection frame 21; the doorway is opened during cleaning to facilitate the entry of floating objects into the collection frame 21; before transfer, the leak-proof net 23 closes the doorway to prevent the collected floating objects from sliding out of the doorway during transfer.

[0072] In some possible implementations, in order to effectively realize the transfer of the transfer bucket 2, the transfer bucket 2 also includes multiple sets of traction ropes 24 that cooperate with the collection frame 21; a first lifting lug that cooperates with the traction rope 24 is provided on the top surface of the collection frame 21; the traction rope 24 and the first lifting lug are arranged one-to-one; the free ends of the traction rope 24 are connected to each other to form a lifting point, and the entire transfer bucket 2 can be lifted by connecting to the lifting point through a hoisting device during transfer to realize the transfer;

[0073] In some possible implementations, in order to effectively achieve the simultaneous sealing of the doorway by the anti-leakage net 23 when the transfer bucket 2 is lifted during rotation; the anti-leakage net 23 is hinged to the bottom surface of the doorway; a second lifting lug 231 is provided on the side of the anti-leakage net 23 away from the bottom of the collection frame 21;

[0074] The first lifting lug includes a lifting lug A211 disposed on the same side as the door opening and a lifting lug B212 disposed on a different side from the door opening;

[0075] One end of the traction rope 24 used in conjunction with the lifting lug B212 is connected to the lifting lug B212; one end of the traction rope 24 used in conjunction with the lifting lug A211 passes through the lifting lug A211 and is connected to the second lifting lug 231.

[0076] like Figure 1 As shown, the top surface of the collection frame 21 has a rectangular structure. There are two sets of lifting lugs A211 and two sets of lifting lugs B212. The lifting lugs A211 and B212 are respectively set at the corners of the rectangular structure. Two sets of lifting lugs A211 are set on the side closest to the doorway, and two sets of lifting lugs B212 are set on the other corner. Two sets of lifting lugs B212 are connected to the traction rope 24. One end of the other two sets of traction ropes 24 passes through the two sets of lifting lugs A211 and is connected to the second lifting lug 231. The other ends of the two sets of traction ropes 24 and the free ends of the traction ropes 24 connected to the lifting lugs B212 are connected to form a lifting point. A lifting ring is provided at the lifting point.

[0077] When it is necessary to remove the transfer bucket 2, the hoisting device uses the lifting ring to lift the traction rope 24. During the lifting process, the traction rope 24 drives the anti-leakage net 23 to rotate upward around the hinge point between it and the bottom of the collection bucket through the cooperation of the lifting lug A211 and the second lifting lug 231, thereby sealing the doorway and preventing the floating objects collected in the collection frame 21 from falling out during the traction process.

[0078] When the hull 1 is in motion and during the process of clearing floating objects, the towing rope 24 is in a relaxed state, and the leak-proof net 23 rotates downward under its own weight, so that the doorway is open, making it easier for the floating objects in the cleaning channel 112 to flow into the collection box 21.

[0079] In some possible implementations, the collection frame 21 includes a frame and a perforated plate mounted on the side of the frame to form a collection cavity; the abutment frame 22 is mounted on the top of the frame; the perforated plate is designed to allow water to be filtered out during transport.

[0080] Furthermore, an image acquisition device 8 for observing the distribution of floating objects on the bottom of the ship and the underwater topography is also provided at the bottom of the hull 1. The image acquisition device 8 is like an underwater camera 84 in the prior art.

[0081] Specifically, such as Figure 5 The bottom of the hull 1 is provided with a mounting bracket 81 for mounting the image acquisition device 8; a rotating cylinder 82 is fixedly connected to one side of the mounting bracket 81 and a rotating motor 83 is fixedly connected to the other side. One end of the underwater camera 84 is fixedly connected to the rotating cylinder 82 and the other end is fixedly connected to the rotating motor 83. The rotating motor 83 and the rotating cylinder 82 arranged along the Y-axis are used to drive the underwater camera to rotate, thereby increasing the field of view and eliminating blind spots.

[0082] Furthermore, a boom 13 is also provided on the top of the hull 1. The boom 13 transports the hull 1 into the ship lift. The boom 13 has a U-shaped structure and is hinged to the top of the hull 1. Specifically, when the boom 13 is perpendicular to the top of the hull 1, the center of the boom 13 and the center of the hull 1 are on the same straight line.

[0083] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. An unmanned debris removal vessel for cleaning floating debris from the ship lift's cargo compartment, characterized in that, It includes a hull with a receiving port, a transfer bucket that is detachably mounted on the hull and used in conjunction with the receiving port, a rotating bucket mounted on the side of the receiving port away from the transfer bucket and hinged to the receiving port, and a drive unit mounted on the hull for controlling the rotation of the rotating bucket around the Z-axis.

2. The unmanned debris removal vessel for cleaning floating debris from the ship lift's cargo compartment according to claim 1, characterized in that, A collision protection wheel is provided on the outer side of the rotating bucket; the collision protection wheel is located on the side of the rotating bucket away from the receiving bucket; a guide wheel is provided on the side of the hull away from the rotating head.

3. The unmanned debris removal vessel for cleaning floating debris from the ship lift's cargo compartment according to claim 1, characterized in that, A cleaning compartment for installing transfer buckets is provided on the hull; The receiving port includes an inlet with a fixed hopper installed inside, and a cleaning channel located between the inlet and the cleaning chamber and connected to both the inlet and the cleaning chamber respectively.

4. The unmanned debris removal vessel for cleaning floating debris from the ship lift's cargo compartment according to claim 3, characterized in that, The inlet has a figure-eight shape, with the larger end of the inlet located on the side closest to the rotating bucket; there are two sets of fixed buckets installed on the inner side of the inlet; the two sets of fixed buckets are symmetrically arranged along the Y-axis. The rotating buckets are arranged in two sets, each corresponding to a fixed bucket. The ends of the two fixed buckets furthest from the cleaning chamber are respectively hinged to the rotating buckets.

5. The unmanned debris removal vessel for cleaning floating debris from the ship lift's cargo compartment according to claim 4, characterized in that, The driving components are in two sets and are arranged one-to-one with the rotating bucket. One end of the driving component is hinged to the inner side of the rotating bucket and the other end is hinged to the hull. The driving component is an electric cylinder.

6. An unmanned debris removal vessel for cleaning floating debris from a ship lift's cargo compartment, as described in claim 3, is characterized in that... A protective plate is provided on the side of the rotating bucket away from the fixed bucket; the protective plate is made of a flexible material.

7. The unmanned debris removal vessel for cleaning floating debris from the ship lift's cargo compartment according to claim 1, characterized in that, The transfer hopper includes a collection frame located inside the cleaning chamber and having a collection cavity, and an abutment frame installed on the collection frame for supporting the collection frame. A doorway is formed between the side of the collection frame near the cleaning channel and the bottom of the collection frame; a leak-proof mesh is provided on the doorway to close the doorway and to be hinged to the collection frame.

8. An unmanned debris removal vessel for cleaning floating debris from a ship lift's cargo compartment, as described in claim 7, is characterized in that... The transfer bucket also includes multiple sets of traction ropes used in conjunction with the collection frame; a first lifting lug is provided on the top surface of the collection frame to be used in conjunction with the traction rope; the traction rope and the first lifting lug are arranged in a one-to-one correspondence.

9. An unmanned debris removal vessel for cleaning floating debris from a ship lift's cargo compartment, as described in claim 8, is characterized in that... The leak-proof mesh is hinged to the bottom surface of the doorway; a second lifting lug is provided on the side of the leak-proof mesh away from the bottom of the collection frame; The first lifting lug includes a lifting lug A located on the same side as the door opening and a lifting lug B located on a different side from the door opening; One end of the traction rope used in conjunction with lug B is connected to lug B; One end of the traction rope used in conjunction with lug A passes through lug A and connects to the second lug.

10. An unmanned debris removal vessel for cleaning floating debris from a ship lift's cargo compartment, as described in claim 8, is characterized in that... The collection frame includes a frame and a perforated plate mounted on the side of the frame to form a collection cavity; The abutment frame is installed on top of the frame.

Images