A construction tower crane anti-collision system

Abstract

The invention discloses an anti-collision system for a tower crane for construction. A detection sensor is provided on the end surface of the forearm away from the cockpit, and the detection sensor is electrically connected to a central controller. A plurality of shock-absorbing and buffering devices are equidistantly provided on the front and rear sides of the forearm and the rear arm, and the shock-absorbing and buffering devices include a plurality of fixing seats, and the plurality of fixing seats are fixedly connected to the front and rear sides of the forearm and the rear arm at equal distances. A fixing block is fixedly connected to the end surface of the fixing seat away from the forearm and the rear wall, and auxiliary rods A are symmetrically provided on the end surface of the fixing seat away from the forearm and the rear wall and on the left and right sides of the fixing block. When the forearm or the rear wall is collided by external force, the shock-absorbing and buffering device can reduce the impact force when the two sides of the forearm and the rear wall are hit, thereby playing a role of shock absorption, protecting the forearm and the rear arm, and preventing accidents.

Description

Technical Field

[0001] The invention relates to the technical field of tower crane anti-collision, and specifically relates to an anti-collision system for a tower crane in construction. Background Art

[0002] Tower crane is the most commonly used lifting equipment on construction sites. It is used to lift raw materials such as steel bars, wooden slats, concrete, and steel pipes for construction. The function of the tower crane is to bear the upper load transmitted by the arm rope and the balance arm rope, and directly transmit it to the tower structure through the turntable through the structural components such as the rotating tower, turntable, and bearing. The top of the self-elevating tower has a truncated cone column type, a forward or backward truncated cone column type, a herringbone type, and a diagonal brace type. All upper slewing tower cranes must be equipped with a counterweight, whose function is to support the counterweight to form a counterweight in the opposite direction of the lifting torque required in the design. In addition to the counterweight, a lifting mechanism is often installed at its tail. The reason why the lifting mechanism is placed at the tail end of the balance arm together with the counterweight is that it can play a partial counterweight role and increase the distance between the rope drum and the tower top guide wheel to facilitate the winding of the wire rope and avoid the occurrence of rope disorder. The amount of counterweight used is inversely proportional to the length of the balance arm, and there is a certain proportional relationship between the length of the balance arm and the length of the lifting arm. When a group of tower cranes are working at a construction site, it is easy for the working areas of the tower cranes to overlap, which can easily lead to the risk of collision, affecting the normal operation of the crane, causing dangerous situations and reducing work efficiency. For this reason, we propose an anti-collision system for construction tower cranes. Summary of the invention

[0003] The purpose of the present invention is to provide a collision prevention system for a tower crane in construction, so as to solve the problem raised in the above-mentioned background technology that when a group of tower cranes are working at a construction site, the working areas of the tower cranes are prone to overlap, which may lead to the risk of collision, affect the normal operation of the crane, cause dangerous situations and reduce work efficiency.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a collision prevention system for a construction tower crane, comprising a base, a tower body is provided at the upper end of the base, a cockpit is provided on the tower body, a forearm is provided on the tower body and above the cockpit, a rear arm in the opposite direction is provided on the tower body and at a position corresponding to the forearm, a counterweight device is provided on the rear arm, a central controller device is provided in the cockpit, a detection sensor is provided on the end face of the forearm away from the cockpit, the detection sensor is electrically connected to the central controller, a plurality of shock-absorbing and buffering devices are equidistantly provided on the front and rear sides of the forearm and the rear arm, the shock-absorbing and buffering devices include a plurality of fixing seats, the plurality of fixing seats are equidistantly fixedly connected to the front and rear sides of the forearm and the rear arm, a fixing block is fixedly connected to the end face of the fixing seat away from the forearm and the rear wall, and the fixing seat is on the end face away from the forearm and the rear wall and on the left and right sides of the fixing block. Auxiliary rods A are symmetrically arranged, and one end of the support rod A is symmetrically and rotationally connected on both sides of the auxiliary rod A, and a sliding block is slidably connected to the fixed seat, a shock-absorbing cavity is arranged inside the sliding block, and the fixed seat is slidably connected in the shock-absorbing cavity, and the left and right ends of the sliding block are symmetrically and fixedly connected with a working frame, and an auxiliary working block is slidably connected in the working frame, and a compression spring A is connected between the auxiliary working block and the inner end surface of the working frame away from the fixed block, and a lifting block is slidably connected to the other side of the shock-absorbing cavity, and a shock-absorbing plate is fixedly connected to the end surface of the lifting block away from the shock-absorbing cavity, and auxiliary rods B are symmetrically arranged on the left and right sides of the shock-absorbing plate, and one end of the support rod B is symmetrically and rotationally connected on both sides of the auxiliary rod B, and the other ends of the corresponding support rods A and support rods B are simultaneously and rotationally connected to the side wall of the auxiliary working block, and air holes are arranged on the side wall of the sliding block, and the air holes are connected to the shock-absorbing cavity.

[0005] Preferably, a sliding groove is provided on the inner surface of the working frame, and the auxiliary working block is slidably connected to the sliding groove.

[0006] Preferably, the shock absorbing plate is provided with protective plates at the upper and lower ends, and the protective plates are slidably connected to the forearm or the rear arm.

[0007] Preferably, the shock absorbing cavity is a rectangular shock absorbing cavity, the fixing block is a rectangular fixing block, and the lifting block is a rectangular lifting block.

[0008] Preferably, limit frames are symmetrically provided on the front and rear sides of the shock-absorbing cavity, and the two limit frames are respectively slidably connected to the fixed block and the lifting block. The opposite end surfaces of the fixed block and the lifting block are fixedly connected with limit plates, and the side walls of the two limit plates are slidably connected to the shock-absorbing cavity.

[0009] Preferably, a plurality of compression springs B are equidistantly connected between the two limit plates.

[0010] Preferably, two adjacent protective plates are slidably connected.

[0011] Compared with the prior art, the beneficial effects of the present invention are: a collision prevention system for a construction tower crane, a detection sensor is located at the front end of the forearm, when the detection sensor detects an obstacle, the detection signal is transmitted to the central controller device, and the central controller device stops the overall working rotation to prevent the tower cranes from colliding with each other. At the same time, when the forearm or the rear wall is hit by an external force, the shock-absorbing and buffering device can reduce the impact force when the two sides of the forearm and the rear wall are hit, play a shock-absorbing role, protect the forearm and the rear arm, and prevent accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the top view of the shock absorbing and buffering device of the present invention;

[0014] Figure 3 It is a schematic diagram of the top view of the structure of the shock absorbing and buffering device of the present invention without installing a protective plate;

[0015] Figure 4 It is a schematic diagram of a top view and a cross-sectional structure of the shock absorbing and buffering device of the present invention;

[0016] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part A.

[0017] In the figure: 1-base, 2-tower body, 3-cockpit, 4-forearm, 5-rear arm, 6-counterweight device, 7-detection sensor, 8-fixed seat, 9-fixed block, 10-support rod A, 11-sliding block, 12-working frame, 13-auxiliary working block, 14-compression spring A, 15-sliding groove, 16-auxiliary rod A, 17-shock absorbing chamber, 18-lifting block, 19-shock absorbing plate, 20-auxiliary rod B, 21-support rod B, 22-ventilation hole, 23-protective plate, 24-limiting frame, 25-limiting plate, 26-compression spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-5The present invention provides a technical solution: a collision prevention system for a construction tower crane, comprising a base 1, a tower body 2 is provided at the upper end of the base 1, a cockpit 3 is provided on the tower body 2, a forearm 4 is provided on the tower body 2 and above the cockpit 3, a rear arm 5 in the opposite direction is provided on the tower body 2 and at a position corresponding to the forearm 4, a counterweight device 6 is provided on the rear arm 5, a central controller device is provided in the cockpit 3, a detection sensor 7 is provided on the end face of the forearm 4 away from the cockpit 3, the detection sensor 7 is electrically connected to the central controller, and the detection sensor 7 is located at the front end of the forearm 4. When the detection sensor 7 detects an obstacle, the detection signal is transmitted to the central controller device, and the central controller device stops the whole working rotation to prevent the tower crane from In case of a mutual collision accident, a plurality of shock-absorbing and buffering devices are equidistantly arranged on the front and rear sides of the forearm 4 and the rear arm 5. The shock-absorbing and buffering devices can reduce the impact force when the forearm 4 and the rear wall 5 are hit, play a shock-absorbing role, and protect the forearm 4 and the rear arm 5. The shock-absorbing and buffering devices include a plurality of fixing seats 8, and the plurality of fixing seats 8 are equidistantly fixedly connected to the front and rear sides of the forearm 4 and the rear arm 5. The end surface of the fixing seat 8 away from the forearm 4 and the rear wall 5 is fixedly connected with a fixing block 9. The end surface of the fixing seat 8 away from the forearm 4 and the rear wall 5 and on the left and right sides of the fixing block 9 are symmetrically provided with auxiliary rods A16, and the two sides of the auxiliary rod A16 are symmetrically rotatably connected with one end of the support rod A10, and the fixing seat 8 is slidably connected with a sliding block 11. A damping cavity 17 is provided inside the sliding block 11, the fixed seat 8 is slidably connected in the damping cavity 17, the fixed seat 8 is fixed, the fixed block 9 is fixed on the fixed block 8, the damping cavity 17 is slidably connected to the fixed block 9, and the sliding block 11 moves along the fixed block 8 when subjected to external force. The left and right ends of the sliding block 11 are symmetrically fixedly connected with a working frame 12, an auxiliary working block 13 is slidably connected in the working frame 12, a compression spring A14 is connected between the auxiliary working block 13 and the inner end surface of the working frame 12 away from the fixed block 9, a lifting block 18 is slidably connected to the other side of the damping cavity 17, and a damping plate 19 is fixedly connected to the end surface of the lifting block 18 away from the damping cavity 17, and the damping plate 19 is symmetrically provided with auxiliary Rod B20, the two sides of the auxiliary rod B20 are symmetrically rotatably connected with one end of the support rod B21, and the other ends of the corresponding support rods A10 and B21 are simultaneously rotatably connected to the side wall of the auxiliary working block 13, and the side wall of the sliding block 11 is provided with an air hole 22, and the air hole 22 is connected with the shock absorbing chamber 17. When the shock absorbing plate 19 collides with a foreign object, the shock absorbing plate 19 moves under force, and when the shock absorbing plate 19 is moved by an external force, it drives the lifting block 18 to move together, and the lifting block 18 slides along the shock absorbing chamber 17. When the shock absorbing plate 19 moves, it can also drive the auxiliary rod B20 to move together, and when the auxiliary rod B20 moves, it drives the support rod B21 to move, and when the support rod B21 moves, it can make the auxiliary working block 13 move in the working frame 12.And under the cooperation of the auxiliary assembly block 13, the support rod B21 and the support rod A10, the working frame 12 can move toward the direction close to the fixed seat 8. At this time, the two working frames 12 can drive the sliding block 11 to move downward together. At this time, under the action of the fixed block 9 and the lifting block 18, the space in the shock absorbing chamber 17 is reduced, and the air in the shock absorbing chamber 17 is squeezed and discharged from the shock absorbing chamber 17 through the air vents 22. Due to the restriction of the air vents 22, the movement speed of the sliding block 11 and the lifting block 18 is reduced, which plays a role in shock absorption. When the external force disappears, the auxiliary working block 13 returns to its initial position under the action of the compression spring A14. When the auxiliary working block 13 returns to its initial position, the support rods A10 and B21 make the sliding block 11, the lifting block 18 and the shock absorbing plate 19 return to their initial positions. At the same time, the compression spring A14 also plays a role in shock absorption.

[0020] Specifically, a sliding groove 15 is provided on the inner surface of the working frame 12, and the auxiliary working block 13 is slidably connected to the sliding groove 15. When the working block 13 is subjected to external force, the auxiliary working block 13 moves, and the auxiliary working block 13 moves along the sliding groove 15 while moving. The sliding groove 15 limits the auxiliary working block 13 to prevent the auxiliary working block 13 from being offset during movement.

[0021] Specifically, the shock absorbing plate 19 is provided with protective plates 23 at both ends, and the protective plates 23 are slidably connected to the front arm 4 or the rear arm 5. The protective plates 23 can protect the inside of the shock absorbing and buffering device to prevent foreign objects from entering the mechanism inside the shock absorbing and buffering device and causing malfunctions.

[0022] Specifically, the shock absorbing chamber 17 is a rectangular shock absorbing chamber, the fixed block 9 is a rectangular fixed block, and the lifting block 18 is a rectangular lifting block, which can limit the relative movement of the shock absorbing chamber 17, the lifting block 18 and the fixed block 9 without rotational deviation, thereby playing a limiting role.

[0023] Specifically, limit frames 24 are symmetrically provided on the front and rear sides of the shock-absorbing cavity 17. The two limit frames 24 are respectively slidably connected to the fixed block 9 and the lifting block 18. The fixed block 9 and the lifting block 18 have opposite end surfaces fixedly connected to limit plates 25. The side walls of the two limit plates 25 are slidably connected to the shock-absorbing cavity 17. When the lifting block 18 and the shock-absorbing cavity 17 move relative to the fixed block 9, the limit frames 24 and the limit plates 25 play a role of limiting the position to prevent the sliding block 11, the lifting block 18 and the fixed block 9 from separating from each other.

[0024] Specifically, a plurality of compression springs B26 are equidistantly connected between the two limit plates 25. When the fixed block 9 and the lifting block 18 move toward each other, the compression springs B26 are squeezed. When the compression springs B26 are compressed, the compression springs B26 exert an opposite force on the fixed block 9 and the lifting block 18, so that the fixed block 9 and the lifting block 18 move away from each other, thereby playing a shock-absorbing role.

[0025] Specifically, two adjacent protection plates 23 are slidably connected to each other.

[0026] Working principle: In the present invention, the detection sensor 7 is located at the front end of the forearm 4. When the detection sensor 7 detects an obstacle, the detection signal is transmitted to the central controller device, and the central controller device stops the whole working rotation to prevent the tower crane from colliding with each other. When the shock absorbing plate 19 collides with a foreign object, the shock absorbing plate 19 moves under the force. When the shock absorbing plate 19 is moved by an external force, it drives the lifting block 18 to move together. The lifting block 18 slides along the shock absorbing cavity 17. When the shock absorbing plate 19 moves, it can also drive the auxiliary rod B20 to move together. When the auxiliary rod B20 moves, it drives the support rod B21 to move. The support rod B21 While moving, the auxiliary working block 13 can be moved in the working frame 12, and under the cooperation of the auxiliary assembly block 13, the support rod B21 and the support rod A10, the working frame 12 can move toward the direction close to the fixed seat 8. At this time, the two working frames 12 can drive the sliding block 11 to move downward together, the fixed seat 8 is fixed, the fixed block 9 is fixed on the fixed 8, the shock absorbing chamber 17 is slidably connected with the fixed block 9, and when the sliding block 11 is acted upon by an external force, it moves along the fixed block 8. At this time, under the action of the fixed block 9 and the lifting block 18, the space in the shock absorbing chamber 17 is reduced, and the air in the shock absorbing chamber 17 is squeezed, and the air passes through the vent hole. 22 discharges the shock absorbing chamber 17. Due to the limitation of the air vent 22, the speed of the sliding block 11 and the lifting block 18 is reduced, which plays a role of shock absorption. When the external force disappears, the auxiliary working block 13 is restored to the initial position under the action of the compression spring A14. When the auxiliary working block 13 is restored to the initial position, the sliding block 11, the lifting block 18 and the shock absorbing plate 19 are restored to the initial position through the action of the support rod A10 and the support rod B21. At the same time, the compression spring A14 also plays a role of shock absorption; when the working block 13 is acted upon by an external force, the auxiliary working block 13 moves, and the auxiliary working block 13 moves along the sliding groove 15 while moving. The sliding groove 15 limits the auxiliary working block 13 to prevent the auxiliary working block 13 from shifting during movement; when the lifting block 18 and the shock absorbing chamber 17 move relative to the fixed block 9, the limit frame 24 and the limit plate 25 limit the position to prevent the sliding block 11, the lifting block 18 and the fixed block 9 from separating from each other; when the fixed block 9 and the lifting block 18 move toward each other, the compression spring B26 is squeezed. When the squeezing spring B26 is compressed, the squeezing spring B26 applies an opposite force to the fixed block 9 and the lifting block 18, so that the fixed block 9 and the lifting block 18 are separated from each other, thereby playing a shock absorbing role.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction tower crane anti-collision system, comprising a base (1), a tower body (2) is provided at the upper end of the base (1), a cockpit (3) is provided on the tower body (2), a forearm (4) is provided on the tower body (2) and above the cockpit (3), a rear arm (5) is provided on the tower body (2) and at a position corresponding to the forearm (4) in the opposite direction of the forearm (4), a counterweight device (6) is provided on the rear arm (5), and a central controller device is provided in the cockpit (3), characterized in that: The end surface of the forearm (4) away from the cockpit (3) is provided with a detection sensor (7), and the detection sensor (7) is electrically connected to the central controller. The front and rear sides of the forearm (4) and the rear arm (5) are equidistantly provided with a plurality of shock absorbing and buffering devices, and the shock absorbing and buffering devices include a plurality of fixing seats (8), and the plurality of fixing seats (8) are equidistantly fixedly connected to the front and rear sides of the forearm (4) and the rear arm (5). The end surface of the fixing seat (8) away from the forearm (4) and the rear arm (5) is fixedly connected with a fixing block (9), and the fixing seat (8) is away from Auxiliary rods A (16) are symmetrically arranged on the end surfaces of the front arm (4) and the rear arm (5) and on the left and right sides of the fixed block (9); the two sides of the auxiliary rods A (16) are symmetrically rotatably connected to one end of the support rod A (10); the fixed seat (8) is slidably connected to a sliding block (11); a shock absorbing cavity (17) is arranged inside the sliding block (11); the fixed seat (8) is slidably connected in the shock absorbing cavity (17); the left and right ends of the sliding block (11) are symmetrically fixedly connected to a working frame (12); the working frame (12) is slidably connected in the working frame (12). An auxiliary working block (13) is connected, and a compression spring A (14) is connected between the auxiliary working block (13) and the inner end surface of the working frame (12) away from the fixed block (9). The other side of the shock absorbing cavity (17) is slidably connected to a lifting block (18), and the end surface of the lifting block (18) away from the shock absorbing cavity (17) is fixedly connected to a shock absorbing plate (19). Auxiliary rods B (20) are symmetrically arranged on the left and right sides of the shock absorbing plate (19), and the two sides of the auxiliary rod B (20) are symmetrically rotatably connected to one end of a support rod B (21), corresponding to The other ends of the support rod A (10) and the support rod B (21) are rotatably connected to the side wall of the auxiliary working block (13). The side wall of the sliding block (11) is provided with an air vent (22), and the air vent (22) is communicated with the shock absorbing chamber (17). The inner surface of the working frame (12) is provided with a sliding groove (15), and the auxiliary working block (13) is slidably connected to the sliding groove (15). The upper and lower ends of the shock absorbing plate (19) are provided with protective plates (23), and the protective plates (23) are slidably connected to the front arm (4) or the rear arm (5).

2. The anti-collision system for a construction tower crane according to claim 1, characterized in that: The shock absorbing chamber (17) is a rectangular shock absorbing chamber, the fixing block (9) is a rectangular fixing block, and the lifting block (18) is a rectangular lifting block.

3. The anti-collision system for a construction tower crane according to claim 1, characterized in that: Limiting frames (24) are symmetrically arranged on the front and rear sides of the shock absorbing cavity (17); the two limiting frames (24) are slidably connected to the fixed block (9) and the lifting block (18) respectively; limiting plates (25) are fixedly connected to the end surfaces opposite to the fixed block (9) and the lifting block (18); and the side walls of the two limiting plates (25) are slidably connected to the shock absorbing cavity (17).

4. The anti-collision system for a construction tower crane according to claim 3 is characterized in that: A plurality of compression springs B (26) are equidistantly connected between the two limit plates (25).

5. The anti-collision system for a construction tower crane according to claim 1, characterized in that: Two adjacent protection plates (23) are slidably connected to each other.

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