Traffic cone clamping device

Abstract

The utility model discloses a traffic cone clamping device which comprises a lead screw, a nut, a fixing ring sleeve, a double-connecting-rod mechanism and an arc-shaped supporting plate. The front end of the lead screw is provided with threads matched with a nut, and the rear end of the lead screw is connected with a driving motor through a coupler to drive the double-connecting-rod mechanism and the arc-shaped supporting plate to clamp traffic cones of different heights. The double-connecting-rod mechanism is formed by hinging a first connecting rod and a second connecting rod, one end is connected with the fixing ring sleeve and the nut, and the other end is connected with the arc-shaped supporting plate. The outer contour of the arc-shaped supporting plate can be matched with the inner contour of the traffic cone, and a pressure sensor is arranged on the arc-shaped supporting plate. The device has the advantages of being high in efficiency, high in clamping reliability, capable of adapting to traffic cones of different heights, capable of detecting clamping force and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of traffic cone collection, and in particular relates to a clamping device for placing and recovering traffic cones in a traffic cone retracting and placing engineering vehicle. Background Art

[0002] The closed area and guide area formed by placing traffic cones to remind passing vehicles to avoid is an effective means of protecting construction workers and passing vehicles in the area. However, during the placement of traffic cones, since the construction area has not yet been fully formed, it will cause safety hazards to the traffic cone placement personnel and vehicles on the road. There is an urgent need to use traffic cone retracting engineering vehicles to quickly and efficiently place and recycle traffic cones. The traffic cone clamping device is an important functional unit on the traffic cone retracting engineering vehicle, which has a great impact on the operating efficiency of the traffic cone retracting engineering vehicle.

[0003] According to GB / T 24720-2009, there are two types of cones, and each cone has a variety of models with different heights. Generally, only one type of cone is used when placing traffic cones, but traffic cones of different heights may be used.

[0004] In 2013, Chang'an University's master's thesis "Design and Research of Automatic Retractable Traffic Cone Machine" disclosed a technical solution, which uses other mechanisms to help the traffic cones fall down, and uses a road cone bracket with a motion mechanism similar to an umbrella rib to expand and tighten the traffic cone from the bottom inside. Its disadvantages are: only after the top of the road cone bracket touches the top of the inside of the traffic cone, its external support plate can be opened to better fit the inner surface of the traffic cone, otherwise it will not fit well or even fail to expand due to inappropriate taper. Based on this working characteristic, the clamping device can only be applied to traffic cones of a specific height, and it does not have the function of controlling the clamping force, has a long working stroke, and is less efficient.

[0005] In 2022, Chang'an University's master's thesis "Research on the Automatic Retracting and Unretracting Device of Traffic Cone Retracting and Unretracting Vehicle" disclosed another technical solution, which uses a clamp that matches the outer cone surface of the traffic cone to clamp the upper end of the traffic cone from the outside, and then places and recycles the clamped traffic cone with the assistance of other mechanisms. The inner surface of the clamp is made of rubber material. This solution can be applied to conical traffic cones of different heights. Its disadvantages are: the outer surface of the traffic cone is easy to adhere to water or grease, and the contact area between the clamp and the traffic cone is small, which can easily lead to insufficient clamping force, and then cause the cone to fall off, affecting work efficiency. It may also cause damage to the traffic cone due to excessive pressure generated by the clamping force, reducing the service life of the traffic cone, and it is also impossible to clamp the fallen traffic cone.

[0006] In addition, there is also a technical solution in the prior art that uses a magnetic suction device to clamp the traffic cone by adsorbing the top of the traffic cone. The disadvantages of this solution are: the traffic cone needs to be fixed with ferromagnetic material on the top based on national standards, which increases the cost of the traffic cone, and in actual operation, it is very easy for the traffic cone to fail to be sucked up or fall off, which is particularly obvious in windy weather.

[0007] In view of the actual need for rapid retraction and deployment of conical traffic cones and the problems existing in the prior art, it is particularly necessary to develop a traffic cone clamping device with high efficiency, high clamping reliability, the ability to adapt to traffic cones of different heights, and the ability to detect clamping force. Utility Model Content

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions: a traffic cone clamping device, comprising a shell, a driving motor and a screw rod, a boss is provided at the center of the outer surface of the right side of the shell, a fixing ring sleeve is fixedly arranged on the boss, the inner hole diameter of the fixing ring sleeve is larger than the screw rod diameter, a through hole is provided at the center of the left side and the right side of the shell, the through hole passes through the center of the boss and is coaxial with the inner hole of the fixing ring sleeve, the diameter of the through hole on the left side of the shell is larger than the diameter of the output shaft of the driving motor, and the output shaft of the driving motor passes through the left side of the shell The through hole on the side extends into the shell, the shell of the drive motor is fixedly connected to the outer surface of the left side, a bearing is arranged in the through hole on the right side of the shell, the left end of the screw rod without thread passes through the inner hole of the fixing ring sleeve and the inner ring of the bearing and is connected to the output shaft of the drive motor through a coupling, the outer ring of the bearing and the through hole on the right side of the shell are in interference connection, the inner ring of the bearing and the screw rod are in interference connection, three sets of double-link mechanisms are evenly distributed along the circumferential direction on the outer periphery of the cylindrical surface of the screw rod, the double-link mechanism includes a first connecting rod and a second connecting rod, the first connecting rod and the second The connecting rod is hinged at the midpoint of the length of the two rods, the left end of the first connecting rod is hinged to the first support frame, the first support frame is fixed to the fixed ring sleeve, the right end of the first connecting rod is movably and rotatably connected to the head of the arc-shaped support plate, the left end of the second connecting rod is hinged to the tail of the arc-shaped support plate, the right end of the second connecting rod is hinged to the second support frame, the second support frame is fixed to the nut, the nut is screwed on the part with external threads on the screw rod, the arc support plate includes an L-shaped support plate and an arc plate, the front and rear ends of the arc plate are respectively a short arc side and a long arc side, the L-shaped support plate The inner long side is fixed to the center line of the concave arc surface of the arc plate, and the center line is the line connecting the midpoint of the long arc side and the midpoint of the short arc side of the arc plate. The long arc side of the arc plate abuts against the baffle. The arc plate is an arc shape that can match the internal contour of the traffic cone. The angle between the long right-angled side of the L-shaped support plate and the center line of the concave arc surface of the arc plate is half of the cone angle of the traffic cone. The short right-angled side of the L-shaped support plate is a baffle, which is used to block the bottom edge of the traffic cone. A force detection device is provided on the arc plate, and the force detection device and the drive motor are electrically connected to the control system of the traffic cone retracting and releasing engineering vehicle.

[0009] Optionally, the bearings are a pair of reversely mounted angular contact bearings.

[0010] Optionally, the coupling is a rigid coupling, and the force detection device is a pressure sensor disposed on the arc plate, and the pressure sensor is used to detect the pressure between the arc plate and the inner surface of the traffic cone.

[0011] Optionally, the upper surface of the arc-shaped plate is covered with a rubber layer or provided with groove patterns.

[0012] Optionally, a long strip through hole is provided at the head of the arc-shaped support plate, and the right end of the first connecting rod is hinged to the arc-shaped support plate through the long strip through hole.

[0013] Optionally, a long strip through hole is provided at the head of the arc-shaped support plate, a slider is movably engaged in the long strip through hole, the slider can slide along the long side of the long strip through hole, and the slider is hinged to the right end of the first connecting rod.

[0014] The beneficial effects of the utility model are embodied in:

[0015] 1. The traffic cone clamping device drives the lead screw to rotate through a driving motor, thereby causing the nut to move linearly, driving the three sets of double-link mechanisms to contract, thereby causing the arc-shaped support plate to expand. The arc-shaped plate can cooperate with the internal contour of the traffic cone, tighten the traffic cone from the inside, and can achieve the clamping of conical traffic cones of different heights.

[0016] 2. The traffic cone clamping device is provided with three groups of arc plates for tightening the traffic cone from the inside, which can reduce the influence of water or grease. The right end of the first connecting rod is movably and rotatably connected to the head of the arc support plate, which can keep the long right-angled side of the L-shaped support plate parallel to the axis of the screw rod during the clamping process. The arc plate is an arc shape that can match the internal contour of the traffic cone. The angle between the long right-angled side of the L-shaped support plate and the midline of the concave arc surface of the arc plate is half of the cone angle of the traffic cone, thereby ensuring that the arc plate fits tightly with the inner surface of the conical traffic cone. The fitting area between the arc plate and the traffic cone is large, and the cone is not easy to fall off, which can improve the clamping reliability. The baffle at the tail of the arc support plate blocks the bottom edge of the traffic cone and can be clamped without waiting for the head of the clamping device to touch the inner top of the traffic cone, which can shorten the working stroke and improve the working efficiency.

[0017] 3. A pressure sensor is provided on the arc plate of the traffic cone clamping device, which can detect the pressure between the arc plate and the inner surface of the traffic cone. When the clamping force reaches the limit, the control system of the traffic cone retracting and releasing engineering vehicle controls the driving motor to stop, thereby avoiding damage to the traffic cone caused by excessive pressure generated by the clamping force, thereby extending the service life of the traffic cone and saving energy.

[0018] 4. A pair of reversely mounted angular contact bearings are provided in the through hole on the right side of the shell of the traffic cone clamping device. The coupling used is a rigid coupling, which is beneficial to improve the rigidity of the system and reduce the damage to the coupling and the drive motor caused by axial and radial loads during operation.

[0019] 5. The upper surface of the arc-shaped plate of the traffic cone clamping device is covered with a rubber layer or provided with groove patterns, which can increase friction and help improve clamping reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the utility model from another perspective;

[0023] Figure 3 This is a schematic diagram of the structure of the arc-shaped support plate of the utility model.

[0024] In the figure, 1, screw rod; 2, nut; 3, arc-shaped support plate; 4, fixing ring sleeve; 5, driving motor; 6, coupling; 7, housing; 8, first connecting rod; 9, second connecting rod; 10, first supporting frame; 11, second supporting frame; 12, arc-shaped plate; 13, baffle; 14, long strip through hole; 15, double-link mechanism. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0026] like Figure 1-3As shown in, a traffic cone clamping device includes a shell 7, a drive motor 5 and a screw 1. A boss is provided at the center of the outer surface of the right side of the shell 7, and a fixing ring sleeve 4 is fixedly arranged on the boss. The inner hole diameter of the fixing ring sleeve 4 is larger than the diameter of the screw 1. A through hole is provided at the center of the left and right sides of the shell 7. The through hole passes through the center of the boss and is coaxial with the inner hole of the fixing ring sleeve 4. The diameter of the through hole on the left side of the shell 7 is larger than the diameter of the output shaft of the drive motor 5. The output shaft of the drive motor 5 passes through the through hole on the left side of the shell 7 and extends into the shell 7. The drive motor 5 The shell is fixed to the outer surface of the left side, a bearing is provided in the through hole on the right side of the shell 7, the unthreaded left end of the screw rod 1 passes through the inner hole of the fixing ring sleeve 4 and the inner ring of the bearing and is connected to the output shaft of the drive motor 5 through the coupling 6, the outer ring of the bearing and the through hole on the right side of the shell 7 are interference fit, the inner ring of the bearing and the screw rod 1 are interference fit, three groups of double-link mechanisms 15 are evenly distributed along the circumferential direction on the outer periphery of the cylindrical surface of the screw rod 1, the double-link mechanism 15 includes a first connecting rod 8 and a second connecting rod 9, the first connecting rod 8 and the second connecting rod 9 are hinged at the midpoint of the length of the two rods, the The left end of the first connecting rod 8 is hinged to the first support frame 10, and the first support frame 10 is fixedly connected to the fixed ring sleeve 4. The right end of the first connecting rod 8 is connected to the head of the arc support plate 3 for movement and rotation. The left end of the second connecting rod 9 is hinged to the tail of the arc support plate 3, and the right end of the second connecting rod 9 is hinged to the second support frame 11. The second support frame 11 is fixed to the nut 2, and the nut 2 is screwed on the part with external threads on the screw rod 1. The arc support plate 3 includes an L-shaped support plate and an arc plate 12. The front and rear ends of the arc plate 12 are respectively a short arc side and a long arc side. The long side inside the L-shaped support plate is fixed It is connected to the center line of the concave arc surface of the arc plate 12, and the center line is the line connecting the midpoint of the long arc side and the midpoint of the short arc side of the arc plate 12. The long arc side of the arc plate 12 is in contact with the baffle 13. The arc plate 12 is an arc shape that can match the internal contour of the traffic cone. The angle between the long right-angled side of the L-shaped support plate and the center line of the concave arc surface of the arc plate 12 is half of the cone angle of the traffic cone. The short right-angled side of the L-shaped support plate is the baffle 13. The baffle 13 is used to block the bottom edge of the traffic cone. A force detection device is provided on the arc plate 12, and the force detection device and the drive motor 5 are electrically connected to the control system of the traffic cone retracting and releasing engineering vehicle. The screw rod 1 is driven to rotate by the driving motor 5, so that the nut 2 makes a linear motion, which drives the three sets of double-link mechanisms 15 to contract, so that the arc-shaped support plate 3 expands outward, and the arc-shaped plate 12 can cooperate with the inner contour of the traffic cone to expand the traffic cone from the inside. The inside of the traffic cone is not easily contaminated by water and grease, which can reduce the influence of water or grease, and can achieve the clamping of conical traffic cones of different heights.The right end of the first connecting rod 8 is connected to the head of the arc support plate 3 in a movable and rotatable manner, which can keep the long right-angle side of the L-shaped support plate parallel to the axis of the screw rod 1 during the clamping process. The arc plate 12 is an arc shape that can match the internal contour of the traffic cone, thereby ensuring that the arc plate 12 is closely fitted with the inner surface of the conical traffic cone. The arc plate 12 has a large fitting area with the traffic cone, which is not easy to fall off, and can improve the clamping reliability. After the baffle 13 at the tail of the arc support plate 3 blocks the bottom edge of the traffic cone, the drive motor 5 can be started for clamping, and there is no need to wait for the head of the clamping device to touch the inner top of the traffic cone, which can shorten the working stroke and improve the working efficiency. A force detection device is provided on the arc plate 12, which can detect the pressure between the arc plate 12 and the inner surface of the traffic cone. After the clamping force reaches the limit, the control system of the traffic cone retracting and releasing engineering vehicle controls the drive motor 5 to stop, thereby avoiding the damage of the traffic cone caused by the excessive pressure generated by the clamping force, which can extend the service life of the traffic cone and save energy.

[0027] Optionally, the bearings are a pair of reversely mounted angular contact bearings, which is beneficial to improving the rigidity of the system and reducing the damage to the coupling 6 and the drive motor 5 caused by axial and radial loads during operation.

[0028] Optionally, the coupling 6 is a rigid coupling 6, which is beneficial to improve the rigidity of the system and reduce the damage to the coupling 6 and the drive motor 5 caused by the axial and radial loads during operation. The force detection device is a pressure sensor arranged on the arc plate 12, which is used to detect the pressure between the arc plate 12 and the inner surface of the traffic cone. After the clamping force reaches the limit, the control system of the traffic cone retracting and releasing engineering vehicle controls the drive motor 5 to stop, thereby avoiding damage to the traffic cone caused by excessive pressure generated by the clamping force, which can extend the service life of the traffic cone and save energy.

[0029] Optionally, the upper surface of the arc plate 12 is covered with a rubber layer or provided with groove patterns, which can increase friction and help improve clamping reliability.

[0030] Optionally, a long strip through hole 14 is provided at the head of the arc-shaped support plate 3, and the right end of the first connecting rod 8 is hinged to the arc-shaped support plate 3 through the long strip through hole 14. During the clamping process, the long right-angle side of the L-shaped support plate can be kept parallel to the axis of the screw rod 1, thereby ensuring that the arc-shaped plate 12 is closely fitted to the inner surface of the conical traffic cone.

[0031] Optionally, a long strip through hole 14 is provided at the head of the arc-shaped support plate 3, a slider is movably engaged in the long strip through hole 14, the slider can slide along the long side of the long strip through hole 14, and the slider is hinged to the right end of the first connecting rod 8. During the clamping process, the long right-angle side of the L-shaped support plate can be kept parallel to the axis of the screw rod 1, thereby ensuring that the arc-shaped plate 12 is closely fitted to the inner surface of the conical traffic cone.

[0032] Operation process: When using the traffic cone collection and release engineering vehicle to recycle the traffic cone, first use the pushing device to push down the conical traffic cone, and then the head of the traffic cone clamping device located behind the pushing device extends from the bottom of the traffic cone. When the baffle 13 abuts against the bottom edge of the traffic cone, the driving motor 5 rotates forward, and drives the screw rod 1 to rotate forward through the coupling 6, so that the nut 2 moves along the axis of the screw rod 1 toward the fixed ring sleeve 4, thereby driving the double-link mechanism 15 to contract, and the right end of the second connecting rod 9 approaches the left end of the first connecting rod 8, thereby pushing the arc support plate 3 to move along the radial direction of the screw rod 1 away from the axis of the screw rod 1, and the arc plate 12 on the arc support plate 3 is aligned with the inner surface of the traffic cone. After being fitted and pressed, the pressure sensor detects the pressure value. When the pressure value reaches the set value, the driving motor 5 stops, and the traffic cone is clamped. The traffic cone clamping device of the traffic cone collection and release engineering vehicle moves the traffic cone to the stacking area. After reaching the predetermined position, the driving motor 5 reverses, so that the nut 2 moves along the axis of the screw rod 1 in the direction away from the fixed ring sleeve 4, driving the double-link mechanism 15 to expand, and the arc support plate 3 moves along the radial direction of the screw rod 1 in the direction close to the axis of the screw rod 1. The arc plate 12 on the arc support plate 3 is separated from the inner surface of the traffic cone, and the traffic cone clamping device of the traffic cone collection and release engineering vehicle returns to the position of collecting traffic cones, waiting for the next traffic cone to be collected. This traffic cone clamping device is installed on the mobile mechanism of the traffic cone collection and release engineering vehicle, and is used to realize the overall movement of the traffic cone clamping device. The mobile mechanism of the traffic cone collection and release engineering vehicle is a prior art and is not a technical innovation point of this application. The pushing device of the traffic cone retracting and releasing engineering vehicle is used to push down the traffic cone so that the head of the traffic cone clamping device can extend from the bottom of the traffic cone and then clamp the traffic cone. The pushing device belongs to the prior art and is not the technical innovation of the present application.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention are within the protection scope of the present invention.

[0034] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A traffic cone clamping device, comprising a housing, a drive motor and a screw rod, characterized in that: A boss is provided at the center of the outer surface of the right side of the shell, and a fixing ring sleeve is fixedly arranged on the boss, and the inner hole diameter of the fixing ring sleeve is larger than the diameter of the screw rod. A through hole is provided at the center of the left side and the right side of the shell, and the through hole passes through the center of the boss and is coaxial with the inner hole of the fixing ring sleeve. The diameter of the through hole on the left side of the shell is larger than the diameter of the output shaft of the drive motor, and the output shaft of the drive motor passes through the through hole on the left side of the shell and extends into the shell. The shell of the drive motor is fixedly connected to the outer surface of the left side, and a bearing is provided in the through hole on the right side of the shell. The unthreaded left end of the screw rod passes through the inner hole of the fixing ring sleeve and the inner ring of the bearing and is connected to the output shaft of the drive motor through a coupling. The outer ring of the bearing and the through hole on the right side of the shell are interference-connected, and the inner ring of the bearing and the screw rod are interference-connected. Three groups of double-link mechanisms are evenly distributed along the circumferential direction on the outer periphery of the cylindrical surface of the screw rod, and the double-link mechanism includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are hinged at the midpoint of the length of the two rods, and the left end of the first connecting rod is hinged to the first connecting rod. A support frame is hinged, the first support frame is fixedly connected to the fixed ring sleeve, the right end of the first connecting rod is movably and rotatably connected to the head of the arc-shaped support plate, the left end of the second connecting rod is hinged to the tail of the arc-shaped support plate, the right end of the second connecting rod is hinged to the second support frame, the second support frame is fixedly connected to a nut, and the nut is screwed on the part of the screw rod with an external thread, the arc-shaped support plate includes an L-shaped support plate and an arc-shaped plate, the front and rear ends of the arc-shaped plate are respectively a short arc side and a long arc side, and the inner long side of the L-shaped support plate is fixedly connected to the arc-shaped plate At the center line of the concave arc surface, the center line is the line connecting the midpoint of the long arc side and the midpoint of the short arc side of the arc plate, the long arc side of the arc plate abuts against the baffle, the arc plate is an arc shape that can match the internal contour of the traffic cone, the angle between the long right-angled side of the L-shaped support plate and the center line of the concave arc surface of the arc plate is half of the cone angle of the traffic cone, the short right-angled side of the L-shaped support plate is the baffle, the baffle is used to block the bottom edge of the traffic cone, a force detection device is provided on the arc plate, and the force detection device and the drive motor are electrically connected to the control system of the traffic cone retracting and releasing engineering vehicle.

2. The traffic cone clamping device according to claim 1, characterized in that: The bearings are a pair of reversely mounted angular contact bearings.

3. The traffic cone clamping device according to claim 1, characterized in that: The coupling is a rigid coupling, and the force detection device is a pressure sensor arranged on the arc plate, and the pressure sensor is used to detect the pressure between the arc plate and the inner surface of the traffic cone.

4. The traffic cone clamping device according to claim 1, characterized in that: The upper surface of the arc-shaped plate is covered with a rubber layer or provided with groove patterns.

5. The traffic cone clamping device according to claim 1, characterized in that: A long strip through hole is provided at the head of the arc-shaped support plate, and the right end of the first connecting rod is hinged to the arc-shaped support plate through the long strip through hole.

6. The traffic cone clamping device according to claim 1, characterized in that: A long strip through hole is arranged at the head of the arc-shaped support plate, a slider is movably connected in the long strip through hole, the slider can slide along the long side of the long strip through hole, and the slider is hinged to the right end of the first connecting rod.

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