Anti-collision device applied to conveying system and steel conveying system thereof

Abstract

The utility model discloses a kind of anti-collision device applied to conveying system and its steel conveying system, it is related to metallurgical industry equipment technical field.Anti-collision device includes baffle support and baffle, baffle support is installed in the end of conveying area, when chain frame rises to high position, baffle support acts to material blocking state, when chain frame drops to low position, baffle support acts to material releasing state;Baffle is fixedly connected on baffle support, the length of baffle is not less than the width of conveying area roller bed at the end of conveying area;When baffle support acts to material blocking state, the end of baffle close to conveying area is flush with conveying area roller bed, the end of baffle away from conveying area is higher than the roller bed surface of conveying area roller bed;When baffle support acts to material releasing state, the end of baffle close to conveying area is flush with conveying area roller bed, the end of baffle away from conveying area is not higher than the roller bed surface of conveying area roller bed.The utility model can protect chain frame from being deformed by steel impact, avoid causing equipment damage.

Description

Technical Field

[0001] This utility model relates to the field of equipment technology in the metallurgical industry, specifically to an anti-collision device applied in a conveying system and its steel conveying system. Background Technology

[0002] Lifting conveyor chains are commonly used in rolling mill equipment in the metallurgical industry. They are devices used to lift steel from a collection area roller conveyor for longitudinal transport. The lifting conveyor chain consists of chain frames, with multiple chain frames arranged side-by-side between the roller conveyor beams. The specific number of chain frames is determined by matching the width of the side-by-side chain frames with the length of the steel. When rows of steel are transported from the conveyor roller conveyor to the collection area roller conveyor above the chain frames of the lifting conveyor chain and aligned, the conveyor roller conveyor stops rotating. At this point, the chain frames rise from their lower position. When the height of the chain frames exceeds the roller conveyor surface of the collection area and reaches their higher position, the chains on the chain frames rotate, longitudinally transporting the lifted steel to the designated position. During this process, as the chain frames rise from their lower position to their higher position, the steel transported from the conveyor direction will collide with the first chain frame at the entrance of the collection area, deforming it and potentially damaging the equipment.

[0003] Currently, the method to protect the chain frame from impacts is through electrical interlocking control. When the chain frame is raised to a high position and the lifting conveyor chain longitudinally transports the steel, several sets of rollers in the conveying area do not rotate to protect the chain frame from impacts by the steel. However, when there are too many rollers in the conveying area, steel from further away will be conveyed and impacted by the steel on the interlocked, non-rotating rollers, and then the steel that is impacted will strike the chain frame raised to the high position, causing the chain frame to deform. Utility Model Content

[0004] The purpose of this invention is to provide an anti-collision device for use in a conveying system, in order to solve the problem mentioned in the background art that the chain frame at the entrance of the collection area is easily deformed by impact, causing equipment damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-collision device applied in a conveying system, the conveying system having a conveying area and a collection area arranged along a first direction, the conveying area being provided with a conveying roller conveyor for conveying steel along the first direction to the collection area, the collection area having multiple chain frames extending along a second direction and arranged along the first direction, at least one roller beam being provided between each pair of adjacent chain frames, each chain frame being capable of synchronous lifting and lowering in a vertical direction, the first direction being perpendicular to the second direction and both being perpendicular to the vertical direction; when the chain frame is raised to a high position, the chain frame lifts the steel on the collection area roller conveyor, and the chain on the chain frame rotates to convey the lifted steel along the second direction to the collection area. In the designated area, the anti-collision device includes a baffle bracket and a baffle. The baffle bracket is installed at the end of the conveying area. When the chain frame is raised to a high position, the baffle bracket moves to the material blocking state. When the chain frame is lowered to a low position, the baffle bracket moves to the material releasing state. The baffle is fixed to the baffle bracket. Along the second direction, the length of the baffle is not less than the width of the conveying area roller table at the end of the conveying area. When the baffle bracket moves to the material blocking state, the end of the baffle near the conveying area is flush with the conveying area roller table, and the end of the baffle away from the conveying area is higher than the roller table surface of the conveying area roller table. When the baffle bracket moves to the material releasing state, the end of the baffle near the conveying area is flush with the conveying area roller table, and the end of the baffle away from the conveying area is not higher than the roller table surface of the conveying area roller table.

[0006] Based on the above technical features, when the chain frame is in a low position, the height of the baffle is lower than the roller surface of the conveyor rollers, and the steel conveyed on the conveyor rollers can pass freely. When the chain frame rises to a high position, the baffle is lifted to a blocking state. At this time, when steel is conveyed to this position in the conveyor area, the steel slides forward and upward along the baffle until it slides to the position of the chain frame and is higher than the chain frame. At this time, one end of the steel separates from the roller surface of the conveyor rollers and stops moving forward. The steel will not hit the chain frame, thus protecting the chain frame from being deformed by the impact of the steel and avoiding damage to the equipment.

[0007] Preferably, this technical solution further includes a support member, which is fixedly connected to the chain frame at the inlet end of the collection area. When the chain frame rises from a low position to a high position, the support member contacts the end of the baffle bracket furthest from the conveying area, causing the baffle bracket to switch from a discharging state to a blocking state. More preferably, the baffle bracket is rotatably mounted at the end of the conveying area via a rotating shaft, with the baffle's center of gravity falling on the end of the rotating shaft's center line furthest from the conveying area. When the chain frame descends from a high position to a low position, the baffle can descend along with the support member using the gravitational torque between its own center of gravity and the rotating shaft's center line, causing the baffle bracket to switch from a blocking state to a discharging state.

[0008] Based on the above technical features, in this embodiment of the utility model, the baffle is raised by the chain frame when it rises, and the baffle is lowered by its own gravity torque when the chain frame descends. Therefore, the anti-collision device does not require the addition of electric, hydraulic, pneumatic or other power transmission mechanisms, has a simple structure, is not prone to equipment failure, and does not require additional operators.

[0009] In this technical solution, preferably, cover plates are provided on both sides of the conveying roller conveyor at the end of the conveying area, and bearing seats are fixedly connected to both cover plates. The baffle bracket can be rotatably installed on the bearing seats at both ends via a rotating shaft.

[0010] Based on the above technical features, the baffle bracket is installed on the cover plate through a rotating mechanism composed of a rotating shaft and a bearing seat. When the baffle bracket swings up and down around the rotating shaft, the friction coefficient is small and the transmission efficiency is high.

[0011] Preferably, in this technical solution, the support member includes a connecting part and a supporting part, wherein the connecting part is fixedly connected to the chain frame, and the supporting part is at a certain angle to the connecting part. More preferably, the support member is an L-shaped steel or angle steel, wherein the first flange of the L-shaped steel or angle steel is welded to the chain frame, and the second flange is used for transmission cooperation with the baffle bracket.

[0012] Preferably, in this technical solution, the baffle support includes a receiving component, which is located at the end away from the conveying area. When the chain frame rises from a low position to a high position, the supporting portion of the support member contacts the receiving component. The baffle support also includes a positioning component, which is fixed to the baffle support. When the chain frame descends from a high position to a low position, the positioning component abuts against the side cover plates, forming a limiting action. More preferably, both the receiving component and the positioning component are made of round steel.

[0013] Based on the above technical features, when the baffle descends to the low position, it relies on the positioning component to press against the two side cover plates to form a limiting fit. When the chain frame rises, the support component can contact the receiving component to drive the baffle bracket to rise to the material blocking state.

[0014] A steel conveying system includes a frame having a conveying area and a collection area, and also includes the aforementioned anti-collision device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the conveying system and its anti-collision device when the chain frame is in a low position in the first embodiment of this utility model;

[0016] Figure 2 In the first embodiment of this utility model Figure 1 Enlarged view of a portion of the area;

[0017] Figure 3 This is a schematic diagram of the conveying system and its anti-collision device when the chain frame is in a high position in this embodiment of the present invention;

[0018] Figure 4 In the first embodiment of this utility model Figure 3 Enlarged view of a portion of the area;

[0019] Figure 5 This is a top view of the conveying system and its anti-collision device in the first embodiment of this utility model;

[0020] Figure 6 This is a front view of the baffle bracket and its baffle in the first embodiment of the present invention;

[0021] Figure 7 This is a top view of the baffle bracket and its baffle in the first embodiment of the present invention;

[0022] Figure 8 This is a schematic diagram of the sleeve connecting rod structure in the first embodiment of the present utility model;

[0023] Figure 9 This is a schematic diagram of the structure of the chain frame in the present invention when it is in a low or high position.

[0024] Figure 10 This is a schematic diagram of the conveying system and its anti-collision device in the second embodiment of the present invention;

[0025] Figure 11 This is the second embodiment of the present utility model. Figure 10 Enlarged view of a portion of the area.

[0026] In the diagram: 1. Conveying area; 11. Conveying area roller conveyor; 12. Cover plate; 2. Collection area; 21. Collection area roller conveyor; 22. Chain frame; 3. Baffle support; 31. Rotating shaft; 32. Bearing seat; 33. Receiving component; 34. Positioning component; 4. Baffle; 5. Support component; 51. Connecting part; 52. Supporting part; 6. Fixed base; 61. Base plate; 62. Foundation; 7. Drive device. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0031] Before understanding this utility model, it is necessary to understand that the conveying system has a conveying area 1 and a collection area 2 arranged along a first direction. The conveying area 1 is provided with a conveying roller conveyor 11 for transferring steel along the first direction to the collection area 2. The collection area 2 has a plurality of chain frames 22 extending along a second direction and arranged along the first direction. At least one roller beam is provided between each pair of adjacent chain frames 22. Each chain frame 22 can perform synchronous lifting and lowering movements in the vertical direction. The first direction and the second direction are perpendicular to each other and both are perpendicular to the vertical direction. When the chain frame 22 is raised to a high position, the chain frame 22 can lift the steel on the collection area roller conveyor 21, and the chain on the chain frame 22 rotates to transfer the lifted steel along the second direction to a designated area.

[0032] At the same time, it is also necessary to be clear that, Figure 1 , Figure 3 , Figure 5 and Figure 10 Only a portion of the conveyor system was shown, among which, Figure 1 and Figure 3 Only two sets of conveyor roller conveyors, two sets of collection roller conveyors, and two sets of chain frames are depicted. Figure 5 Only one set of conveyor rollers, one set of collection rollers, and one set of chain frames are depicted. In actual applications, the conveyor system often has multiple sets of conveyor rollers in the conveyor area and multiple sets of collection rollers in the collection area to meet the movement distance of the steel.

[0033] like Figures 1 to 11 As shown, the present invention provides the following technical solution: an anti-collision device applied in a conveying system.

[0034] like Figures 1 to 8As shown, this is the first embodiment of the anti-collision device of the present invention. The anti-collision device includes a baffle bracket 3 and a baffle 4. The baffle bracket 3 is installed at the end of the conveying area 1. When the chain frame 22 is raised to the high position, the baffle bracket 3 moves to the material blocking state. When the chain frame 22 is lowered to the low position, the baffle bracket 3 moves to the material releasing state. The baffle 4 is fixed on the baffle bracket 3. Along the second direction, the length of the baffle 4 is not less than the width of the conveying area roller 11 at the end of the conveying area 1, so as to effectively prevent steel from hitting the chain frame 22.

[0035] In practical applications, when the baffle bracket 3 moves to the material blocking state, the end of the baffle 4 closest to the conveying area 1 is flush with the conveying area roller conveyor 11, and the end of the baffle 4 furthest from the conveying area 1 is higher than the roller surface of the conveying area roller conveyor 11. When the baffle bracket 3 moves to the material discharging state, the end of the baffle 4 closest to the conveying area 1 is flush with the conveying area roller conveyor 11, and the end of the baffle 4 furthest from the conveying area 1 is not higher than the roller surface of the conveying area roller conveyor 11.

[0036] Specifically, such as Figure 1 and Figure 2 As shown, when the chain frame 22 is in the low position, the height of the baffle 4 is lower than the roller surface of the conveyor roller conveyor 11, allowing the steel conveyed on the conveyor roller conveyor 11 to pass freely. For example... Figure 3 and Figure 4 As shown, when the chain frame 22 rises to the high position, the baffle 4 is lifted to the material blocking state. Preferably, when the baffle 4 is in the material blocking state, the baffle surface of the baffle 4 and the roller surface of the conveying area roller conveyor 11 have a certain slope. When steel is conveyed to this point in the conveying area 1, the steel slides forward and upward along the baffle 4 until it slides to the position of the chain frame 22 and is higher than the chain frame 22. At this time, one end of the steel separates from the roller surface of the conveying area roller conveyor 11 and stops moving forward. The steel will not hit the chain frame 22, thus protecting the chain frame 22 from being deformed by the impact of the steel and causing equipment damage. More preferably, the slope angle between the baffle 4 and the roller surface of the conveyor roller 11 can be selected from 90° to 150°, for example, it can be selected from 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145° and 150°, or it can be selected from any value between two adjacent slope angles mentioned above.

[0037] like Figure 9 The diagram shows the position of the chain frame 22 when it is in a low or high position. When the chain frame 22 is in a low position, the top of the chain frame 22 is lower than the roller surfaces of the collection area roller conveyor 21 and the conveying area roller conveyor 11. When the chain frame 22 is in a high position, the top of the chain frame 22 is higher than the roller surfaces of the collection area roller conveyor 21 and the conveying area roller conveyor 11.

[0038] Furthermore, such as Figures 1 to 4As shown, the anti-collision device also includes a support member 5, which is fixed to the chain frame 22 at the entrance end of the collection area 2. When the chain frame 22 is raised from the low position to the high position, the support member 5 contacts the end of the baffle bracket 3 away from the conveying area 1, causing the baffle bracket 3 to switch from the material feeding state to the material blocking state.

[0039] Specifically, the support member 5 includes a connecting part 51 and a supporting part 52. The connecting part 51 is fixed to the chain frame 22, and the supporting part 52 is at a certain angle to the connecting part 51 so that the connecting part 51 can contact the baffle bracket 3 during the process of the chain frame 22 being raised to a high position, so as to lift the baffle bracket 3 and the baffle 4 from the material feeding state to the material blocking state.

[0040] In an optional embodiment of this utility model, the support member 5 can be an L-shaped steel or an angle steel, wherein the first flange of the L-shaped steel or angle steel is welded to the chain frame 22, and the second flange is used for transmission cooperation with the baffle bracket 3. In addition, the support frame 5 can also be selected from other support structure components, as long as they can meet the requirement that the support member 5 and the baffle bracket 3 can be transmission cooperated when the chain frame 22 rises.

[0041] Furthermore, such as Figure 5 and Figure 7 As shown, the baffle bracket 3 is rotatably installed at the end of the conveying area 1 via the rotating shaft 31. The center of gravity of the baffle 4 falls on the end of the rotating shaft 31 away from the conveying area 1. Therefore, when the chain frame 22 is lowered from the high position to the low position, the baffle 4 can rely on the gravitational torque between its own center of gravity and the center line of the rotating shaft 31 to descend together with the support member 5, thereby driving the baffle bracket 3 to change from the material blocking state to the material releasing state.

[0042] Therefore, in this embodiment of the present invention, the baffle 4 rises by being supported by the chain frame 22 when it rises, and the baffle 4 falls by its own gravity torque when the chain frame 22 falls. Therefore, the anti-collision device does not require the addition of electric, hydraulic, pneumatic or other power transmission mechanisms, has a simple structure, is not prone to equipment failure, and does not require additional operators.

[0043] like Figures 1 to 7 As shown, cover plates 12 are provided on both sides of the conveyor roller 11 at the end of the conveyor zone 1. Bearing seats 32 are fixed on both sides of the cover plates 12. The baffle bracket 3 can be rotatably installed on the bearing seats 32 at both ends via the rotating shaft 31.

[0044] like Figures 1 to 6As shown, the baffle support 3 also includes a receiving member 33 and a positioning member 34. The receiving member 33 is located at the end away from the conveying area 1. When the chain frame 22 rises from a low position to a high position, the supporting part 52 in the support member 5 contacts the receiving member 33, which can drive the baffle support 3 from the material feeding state to the material blocking state. The positioning member 34 is fixed to the baffle support 3. When the chain frame 22 descends from a high position to a low position, the positioning member 34 abuts against the two side cover plates 12. When the baffle 4 descends to the low position, it relies on the positioning member 34 to press against the two side cover plates 12, forming a limiting fit. Preferably, in this utility model, both the receiving member 33 and the positioning member 34 can be made of round steel.

[0045] Specifically, such as Figures 6 to 8 As shown, the baffle bracket 3 also includes a sleeve connecting rod structure, which can be specifically divided into a sleeve and a connecting rod. The connecting rod is welded to the outer circumferential side of the sleeve. The rotating shaft 31 is installed inside the sleeve, and the receiving part 33 and the positioning part 34 are welded to the bottom of the connecting rod. The baffle 4 is welded between the two sleeve connecting rod structures through a connecting block.

[0046] like Figure 10 and Figure 11 The diagram shows the structure of the anti-collision device in the second embodiment of this utility model. In this embodiment, the anti-collision device includes a baffle 4, a fixed base 6, and a driving device 7. The fixed base 6 includes a base plate 61 and a foundation 62. The foundation 62 is installed on the ground, and the base 61 is fixedly installed on the top surface of the foundation 62 by screws. The baffle 4 can be rotatably installed on the base plate 61 via a rotating shaft. One end of the driving device 7 is hinged to the base plate 61, and the other end is fixedly connected to the baffle 4. The driving device 7 can drive the baffle 4 to rotate around the rotating shaft. Under the driving action of the driving device 7, the baffle 4 can freely switch between the blocking state and the releasing state.

[0047] When the chain frame 22 is raised to the high position, the baffle 4 rotates to the blocking state under the drive of the drive device 7. At this time, the baffle 4 is in a vertical state, and the height of the top surface of the baffle 4 is greater than the height of the roller surfaces of the conveying area roller conveyor 11 and the collecting area roller conveyor 21. The baffle surface of the baffle 4 faces the steel being conveyed in the conveying area 1, and the end face of the steel being conveyed by the conveying area roller conveyor 11 abuts against the baffle surface of the baffle 4. The steel being conveyed by the conveying area roller conveyor 11 will not collide with the chain frame 22, thus protecting the chain frame 22 from deformation caused by the impact of the steel and avoiding damage to the equipment. When the chain frame 22 is lowered to the low position, the baffle 4 rotates to the discharging state under the drive of the drive device 7. At this time, the height of the top surface of the baffle 4 is lower than the height of the roller surface of the conveying area roller conveyor 11, and the steel being conveyed in the conveying area 1 will be normally transferred to the collecting area roller conveyor 11 in the collecting area 2.

[0048] Furthermore, the aforementioned drive device 7 can be any one of a hydraulic cylinder, pneumatic cylinder, or other power devices.

[0049] In the second embodiment shown above, the baffle 4 needs to rely on power devices such as hydraulic cylinders and pneumatic cylinders. Compared with the first embodiment of the present invention, the structure is more complex, prone to equipment failure, and requires additional operators to control the power device in order to control the baffle 4 to switch between the blocking state and the releasing state according to the position state of the chain frame 22 (high position state or low position state).

[0050] A steel conveying system includes a frame having a conveying area 1 and a collection area 2, and also includes the aforementioned anti-collision device.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A collision avoidance device for a conveying system, the conveying system having a conveying area (1) and a collection area (2) arranged along a first direction, wherein the conveying area (1) is provided with a conveying area roller conveyor (11) for conveying steel along the first direction to the collection area (2), the collection area (2) having a plurality of chain frames (22) extending along a second direction and arranged along the first direction, wherein at least one roller beam is provided between each two adjacent chain frames (22), each chain frame (22) being capable of synchronous lifting and lowering in a vertical direction, the first direction being perpendicular to the second direction and both being perpendicular to the vertical direction; when the chain frame (22) is raised to a high position, the chain frame (22) lifts the steel on the collection area roller conveyor (21), and the chain on the chain frame (22) rotates to convey the lifted steel along the second direction to a designated area, characterized in that, The anti-collision device includes: Baffle bracket (3) is installed at the end of the conveying area (1). When the chain frame (22) is raised to the high position, the baffle bracket (3) moves to the material blocking state. When the chain frame (22) is lowered to the low position, the baffle bracket (3) moves to the material discharging state. A baffle (4) is fixedly connected to a baffle bracket (3). Along the second direction, the length of the baffle (4) is not less than the width of the conveying area roller table (11) at the end of the conveying area (1). When the baffle bracket (3) moves to the material blocking state, the end of the baffle (4) near the conveying area (1) is flush with the conveying area roller table (11), and the end of the baffle (4) away from the conveying area (1) is higher than the roller table surface of the conveying area roller table (11). When the baffle bracket (3) moves to the material discharging state, the end of the baffle (4) near the conveying area (1) is flush with the conveying area roller table (11), and the end of the baffle (4) away from the conveying area (1) is not higher than the roller table surface of the conveying area roller table (11).

2. The anti-collision device according to claim 1, characterized in that, It also includes a support member (5), which is fixed to the chain frame (22) at the inlet end of the collection area (2); As the chain frame (22) rises from a low position to a high position, the support member (5) comes into contact with the end of the baffle bracket (3) away from the conveying area (1), causing the baffle bracket (3) to switch from the material feeding state to the material blocking state.

3. The anti-collision device according to claim 2, characterized in that, The baffle bracket (3) is rotatably installed at the end of the conveying area (1) via a rotating shaft (31), and the center of gravity of the baffle (4) falls on the end of the rotating shaft (31) away from the conveying area (1); As the chain frame (22) descends from a high position to a low position, the baffle (4) can descend along with the support (5) by relying on the gravitational torque between its own center of gravity and the center line of the rotating shaft (31), thereby driving the baffle bracket (3) to change from the material blocking state to the material releasing state.

4. The anti-collision device according to claim 3, characterized in that, Cover plates (12) are provided on both sides of the conveying area roller conveyor (11) at the end of the conveying area (1). Bearing seats (32) are fixed on both sides of the cover plates (12). The baffle bracket (3) can be rotatably installed on the bearing seats (32) at both ends via the rotating shaft (31).

5. The anti-collision device according to claim 4, characterized in that, The support member (5) includes a connecting part (51) and a supporting part (52). The connecting part (51) is fixed to the chain frame (22), and the supporting part (52) is at a certain angle to the connecting part (51).

6. The anti-collision device according to claim 5, characterized in that, The support member (5) is an L-shaped steel or angle steel. The first flange of the L-shaped steel or angle steel is welded to the chain frame (22), and the second flange is used for transmission cooperation with the baffle bracket (3).

7. The anti-collision device according to claim 5, characterized in that, The baffle bracket (3) includes a receiving member (33), which is located at one end away from the conveying area (1). When the chain frame (22) is raised from the low position to the high position, the supporting part (52) in the support member (5) comes into contact with the receiving member (33).

8. The anti-collision device according to claim 7, characterized in that, The baffle bracket (3) also includes a positioning element (34), which is fixed to the baffle bracket (3). When the chain frame (22) is lowered from the high position to the low position, the positioning element (34) abuts against the two side cover plates (12) to form a limit.

9. The anti-collision device according to claim 8, characterized in that, Both the receiving component (33) and the positioning component (34) are made of round steel.

10. A steel conveying system, comprising a frame having a conveying area (1) and a collecting area (2), characterized in that, It also includes the anti-collision device as described in any one of claims 1-9.

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