CN111717776B - Pre-collision-prevention early warning device based on building construction tower crane - Google Patents
Pre-collision-prevention early warning device based on building construction tower crane Download PDFInfo
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- CN111717776B CN111717776B CN202010663592.0A CN202010663592A CN111717776B CN 111717776 B CN111717776 B CN 111717776B CN 202010663592 A CN202010663592 A CN 202010663592A CN 111717776 B CN111717776 B CN 111717776B
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- expansion
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- support frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/022—Springs leaf-like, e.g. of thin, planar-like metal
Abstract
The invention discloses a pre-anti-collision early warning device based on a building construction tower crane, relates to the technical field of building construction equipment, solves the problems that a steel bar is easy to slide out during hoisting and has no anti-collision early warning function, and comprises a main supporting frame; the top of the upper hanging plate is fixedly provided with a hanging ring. This device is placed the reinforcing bar at main tributary fagging top when using, then will expand the plate washer rotatory to vertical back and twist the plate washer fixing bolt fixedly, promote two sets of extension support frames again and make the inboard and the reinforcing bar both ends contact of two extension plate washers, thereby it is fixed with the extension support frame to screw up extension frame fixing bolt clockwise, at this moment, the inboard layer board of extension support frame bottom also can play the supporting role to the reinforcing bar both ends, the reinforcing bar just can not the outside roll-off when hoist and mount, and also can carry out whole width change according to the different reinforcing bar of length, only need dismantle the rotatory extension plate washer in plate washer fixing bolt back of one side when taking out the reinforcing bar, make things convenient for the reinforcing bar to take out more.
Description
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a pre-collision-prevention early warning device based on a building construction tower crane.
Background
Tower cranes, also known as tower cranes, originate in western europe. And the movable arm is arranged on the rotary crane at the upper part of the high-rise tower body. The operation space is big, and the installation of the perpendicular and horizontal transport and the building element of material among the mainly used building construction often needs hoist and mount reinforcing bar with the hoist in the building construction, and all need use the dedicated steel reinforcement cage who holds the reinforcing bar during hoist and mount reinforcing bar.
For example, application number is 201711053009.9 discloses a hoist for reinforcing bar for crane, including the link, symmetrical connection has four dead levers on the link, every two first recesses and second recess have all been seted up to the symmetry on the dead lever, every all be provided with two ball in the first recess perpendicularly, every all the cover is equipped with the band pulley on the ball, two the common cover is equipped with the drive belt on the band pulley, one of them the upper end and the motor that sets up on first recess inner wall of ball are connected, two the common cover is equipped with the movable block on the ball, fixedly connected with connecting rod on the movable block, the lower extreme of connecting rod runs through in the dead lever extends to the second recess and fixedly connected with installation piece. The steel bar binding device is ingenious in structure and convenient and fast to use, does not need workers to bind steel bars, increases the mounting and dismounting speed of the steel bars, improves the hoisting efficiency, saves a large amount of time and energy of workers, and is worthy of popularization.
Based on the above, the existing steel bar lifting tool for the tower crane is a lifting basket structure with openings on two sides, the lifting tool is directly placed on the inner side of the device when a steel bar is placed, two ends of the steel bar extend outwards from two sides of the lifting basket, the steel bar is very easy to slide outwards when the lifting tool is lifted, even if two ends of some lifting tools are closed, the steel bar can be prevented from sliding out, the length of the lifting tool cannot be changed according to the length of the used steel bar, some long steel bars cannot be used, the steel bar is inconvenient to take out, and the position of a tower crane controller is high, so that visual errors exist when the position of the lifting tool is observed, the lifting tool is very easy to collide, and the lifting tools have no anti-collision early warning function; therefore, the existing requirements are not met, and a pre-anti-collision early warning device based on the building construction tower crane is provided for the requirements.
Disclosure of Invention
The invention aims to provide a pre-anti-collision early warning device based on a building construction tower crane, which aims to solve the problems that the existing steel bar lifting appliances for the tower crane, which are proposed in the background technology, are of a basket structure with openings at two sides, the steel bars are directly placed on the inner side of the device when placed, two ends of the steel bars extend outwards from two sides of the basket, the steel bars are easy to slide outwards when lifted due to shaking, the lifting appliances are inconvenient to take out even if two ends of the lifting appliances are closed, the steel bars can be prevented from sliding out, the length of the lifting appliances cannot be changed according to the length of the used steel bars, a long steel bar cannot be used, the steel bars cannot be conveniently taken out, the positions of tower crane control personnel are high, visual errors exist when the positions of the lifting appliances are observed, the lifting appliances are easy to collide, and the lifting appliances have no anti-collision early warning function.
In order to achieve the purpose, the invention provides the following technical scheme: a pre-anti-collision early warning device based on a building construction tower crane comprises a main supporting frame; a main supporting plate is fixedly connected between the two groups of main supporting frames through welding; eight reinforcing cross rods are fixedly arranged between the two groups of main support frames at equal intervals by welding, and the reinforcing cross rods are positioned below the main support plates; the tops of the two groups of main supporting frames are respectively fixedly and symmetrically provided with three connecting rods through welding; the top parts of two groups of six connecting rods are fixedly welded with the bottom part of the upper hanging plate; the top of the upper hanging plate is fixedly provided with a hanging ring; a control box and a power box are also fixedly and symmetrically arranged on two sides of the top of the upper hanging plate, a controller and a wireless transmission device are arranged in the control box, and a storage battery is arranged in the power box; four corners at two sides of the top of the upper hanging plate are respectively and fixedly provided with an ultrasonic sensor; two sides of the two groups of main supporting frames are movably embedded with one group of expansion supporting frames; the two sides of the top of the two groups of main supporting frames are respectively and symmetrically embedded with twelve expansion frame fixing bolts of four groups through threads; two sets of equal movable mounting has an extension plate washer between the extension support frame, and every group the top of extension support frame all installs a plate washer fixing bolt through the screw thread.
Preferably, the extension support frame comprises two L-shaped rods, the extension baffle is movably mounted in the middle of the vertical part of the extension support frame, and the bottom of the extension baffle is movably connected with the inner side of the extension support frame through a rotating shaft.
Preferably, the bottom inner sides of the extension supporting frames are fixedly provided with a horizontal supporting plate through welding, the width of the supporting plate is equal to that of the reinforcing cross rod, the upper plane of the supporting plate is located at the bottom of the lower plane of the main supporting plate, and when the extension supporting frames are pushed inwards to one side of the main supporting frame, the supporting plate in the middle of the bottom of the extension supporting frames can be inserted into the empty groove below the main supporting plate.
Preferably, the height of the extension baffle is 40cm, and the two sides of the extension baffle are provided with a circular hole capable of embedding one end of the baffle fixing bolt, so that the extension baffle is fixed in a vertical state, and the extension baffle can be rotated and leveled after the baffle fixing bolt is detached.
Preferably, the middle of the main support frame is a square through groove, and the expansion support frame can be just embedded into the through groove in the middle of the main support frame and can slide left and right in the through groove.
Preferably, main tributary strut both sides top all is provided with the screw hole that three equidistance was arranged, and the interval of screw hole is 10cm, and extension frame fixing bolt twists respectively in these screw holes, and extension frame fixing bolt's bottom can pass through groove and the top contact of extension support frame in the middle of these screw holes and the embedding main tributary strut.
Preferably, the expansion supporting frames can be adjusted to any positions at the left side and the right side of the main supporting frame in a sliding mode and fixed through expansion frame fixing bolts, and the expansion baffle plates between the expansion supporting frames can be adjusted to be in a vertical state or a horizontal and inclined state through rotation when the expansion baffle plates are used.
Preferably, the outer sides of the main support frames are fixedly and symmetrically provided with two main buffer rubber strips with the thickness of 5cm, the outer sides of the two groups of extension support frames are fixedly and symmetrically provided with two side buffer strips with the thickness of 5cm, and the two main buffer rubber strips and the four side buffer strips are respectively distributed in the front, back, left and right directions of the device.
Compared with the prior art, the invention has the beneficial effects that:
this device is placed the reinforcing bar at main tributary fagging top when using, then will expand the plate washer rotatory to vertical back and twist the plate washer fixing bolt fixedly, promote two sets of extension support frames again and make the inboard and the reinforcing bar both ends contact of two extension plate washers, thereby it is fixed with the extension support frame to screw up extension frame fixing bolt clockwise, at this moment, the inboard layer board of extension support frame bottom also can play the supporting role to the reinforcing bar both ends, the reinforcing bar just can not the outside roll-off when hoist and mount, and also can carry out whole width change according to the different reinforcing bar of length, only need dismantle the rotatory extension plate washer in plate washer fixing bolt back of one side when taking out the reinforcing bar, make things convenient for the reinforcing bar to take out more.
Still be provided with controller and wireless transmission device in the control box of this device, be provided with the battery in the power supply box, the battery all passes through circuit connection with controller and wireless transmission device and ultrasonic sensor, when this device is nearer apart from the building, ultrasonic sensor can detect the building and transmit signal for the controller, the controller will send out the police dispatch newspaper on giving tower crane control personnel's the receiving terminal through wireless transmission device transmission signal again, thereby in time make the adjustment, just so also can effectively reduce because the collision that visual error caused.
Drawings
FIG. 1 is a schematic view of a bent-down shaft side structure of the extension support frame of the present invention when pushed in;
FIG. 2 is a schematic view of the bottom side structure of the extension support frame of the present invention when pushed in;
FIG. 3 is a schematic view of a bent axis side structure of the extended support frame of the present invention after being pulled out;
FIG. 4 is a schematic view of a top-down side structure of the extended shield of the present invention after being rotated and deployed;
FIG. 5 is a schematic view of a main support frame of the present invention taken along a plane of a vertical axis;
FIG. 6 is a side view of the main support frame and the main support plate of the present invention;
FIG. 7 is an enlarged view of a portion of the structure at point A of FIG. 4;
FIG. 8 is a schematic view of the present invention at point B on an enlarged scale;
FIG. 9 is a schematic structural diagram of a working system of the collision warning module according to the present invention;
in the figure: 1. a main supporting frame; 2. a connecting rod; 3. hanging the plate; 4. hanging a ring; 5. a control box; 6. a power supply box; 7. an ultrasonic sensor; 8. a main buffering rubber strip; 9. expanding the support frame; 10. an extended baffle; 11. a baffle plate fixing bolt; 12. an expansion bracket fixing bolt; 13. a side buffer bar; 14. a main supporting plate; 15. and reinforcing the cross bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 9, an embodiment of the present invention: a pre-anti-collision early warning device based on a building construction tower crane comprises a main supporting frame 1; a main supporting plate 14 is fixedly connected between the two groups of main supporting frames 1 through welding; the top parts of two sides of the main support frame 1 are respectively provided with three threaded holes which are arranged at equal intervals, the distance between the threaded holes is 10cm, the expansion frame fixing bolts 12 are respectively screwed into the threaded holes, and the bottoms of the expansion frame fixing bolts 12 penetrate through the threaded holes and are embedded into the through groove in the middle of the main support frame 1 to be in contact with the top parts of the expansion support frames 9, so that the expansion support frames 9 can be positioned after the positions of the expansion support frames 9 are adjusted; two main buffering rubber strips 8 with the thickness of 5cm are fixedly and symmetrically arranged on the outer sides of the main supporting frames 1, two side buffering strips 13 with the thickness of 5cm are fixedly and symmetrically arranged on the outer sides of the two groups of extension supporting frames 9, and the two main buffering rubber strips 8 and the four side buffering strips 13 are respectively distributed in the front, the back, the left and the right directions of the device, so that even if the device is accidentally collided in the hoisting process, the two main buffering rubber strips 8 and the four side buffering strips 13 on the outer sides can also play a role in preventing shock in the four directions, and the abrasion of the device is reduced; eight reinforcing cross rods 15 are fixedly arranged between the two groups of main support frames 1 at equal intervals by welding, and the reinforcing cross rods 15 are positioned below the main support plates 14; the tops of the two groups of main supporting frames 1 are respectively fixedly and symmetrically provided with three connecting rods 2 by welding; the top parts of the two groups of six connecting rods 2 are fixedly welded with the bottom part of the upper hanging plate 3; the top of the upper hanging plate 3 is fixedly provided with a hanging ring 4; a control box 5 and a power box 6 are also fixedly and symmetrically arranged on two sides of the top of the upper hanging plate 3, a controller and a wireless transmission device are arranged in the control box 5, and a storage battery is arranged in the power box 6; four corners at two sides of the top of the upper hanging plate 3 are fixedly provided with an ultrasonic sensor 7; two sides of the two groups of main supporting frames 1 are movably embedded with a group of expansion supporting frames 9; the expansion supporting frame 9 is composed of two L-shaped rods, the expansion baffle plate 10 is movably arranged in the middle of the vertical part of the expansion supporting frame 9, the bottom of the expansion baffle plate 10 is movably connected with the inner side of the expansion supporting frame 9 through a rotating shaft, when the device is used, a steel bar is placed at the top of the main supporting plate 14, then the expansion baffle plate 10 is rotated to be vertical, the baffle plate fixing bolts 11 are screwed and fixed, then the two groups of expansion supporting frames 9 are pushed to enable the inner sides of the two expansion baffle plates 10 to be in contact with the two ends of the steel bar, and the expansion bracket fixing bolts 12 are screwed clockwise to fix the expansion supporting frame 9, at the moment, the supporting plate on the inner side of the bottom of the expansion supporting frame 9 can also support the two ends of the steel bar, and the steel bar cannot slide out when being hoisted; the inner sides of the bottoms of the extension support frames 9 are fixedly provided with a horizontal supporting plate by welding, the width of the supporting plate is equal to that of the reinforcing cross rod 15, the upper planes of the supporting plates are positioned at the bottom of the lower plane of the main support plate 14, when the extension support frames 9 are pushed inwards to one side of the main support frame 1, the supporting plate in the middle of the bottoms of the extension support frames 9 can be inserted into the empty groove below the main support plate 14, and the supporting plate can be more easily folded when the extension support frames 9 are folded at the innermost side; the two sides of the top of the two groups of main supporting frames 1 are respectively and symmetrically embedded with four groups of twelve expansion frame fixing bolts 12 through threads; an expansion baffle plate 10 is movably arranged between the two groups of expansion supporting frames 9, and a baffle plate fixing bolt 11 is arranged at the top of each group of expansion supporting frames 9 through threads.
Further, the height of extension plate washer 10 is 40cm, and the both sides of extension plate washer 10 also all are provided with one can be with the circular port of the 11 one end embedding of plate washer fixing bolt, thereby fix extension plate washer 10 in vertical state, can be with the rotatory level of extension plate washer 10 after dismantling plate washer fixing bolt 11, during placing the reinforcing bar with the plate washer fixing bolt 11 of one of them set of extension support frame 9 front and back both sides back unscrew out, then place the reinforcing bar at main tributary fagging 14 top after will extending plate washer 10 rotation level, only need dismantle the rotatory extension plate washer 10 of back with the plate washer fixing bolt 11 of one side when taking out the reinforcing bar, just so just can make things convenient for the reinforcing bar to take out more.
Further, the middle of main support frame 1 is a square through groove, and extension support frame 9 can just imbed the through groove in the middle of main support frame 1 and can slide from side to side in this through groove, when placing the reinforcing bar, with the surplus part average distribution at reinforcing bar both ends in main support backup pad 14 both sides, then will expand plate washer 10 rotatory to vertical back and twist into plate washer fixing bolt 11 fixedly, promote two sets of extension support frames 9 again and make the inboard of two extension plate washers 10 and the contact of reinforcing bar both ends, can carry out whole width according to the reinforcing bar of length difference and change.
Further, the expansion support frames 9 can be adjusted to be in a vertical state or a horizontal and inclined state through rotation at will at the left side and the right side of the main support frame 1 and fixed through expansion support frame fixing bolts 12, and expansion baffle plates 10 between the expansion support frames 9 can be adjusted to be in a vertical state or a horizontal and inclined state through rotation when in use.
The working principle is as follows: when the device is used for hoisting the reinforcing steel bar, the expansion bracket fixing bolts 12 are all rotated anticlockwise for three circles to separate the bottom of the expansion bracket fixing bolts from the expansion supporting frames 9, then the two groups of expansion supporting frames 9 are respectively pulled out towards two sides, the baffle fixing bolts 11 at the front side and the rear side of one group of expansion supporting frames 9 are screwed out, then the expansion baffles 10 are rotated horizontally, the reinforcing steel bar is placed at the top of the main supporting plate 14, the rest parts at the two ends of the reinforcing steel bar are evenly distributed at the two sides of the main supporting plate 14, then the expansion baffles 10 are rotated to be vertical and the baffle fixing bolts 11 are screwed in for fixing, then the two groups of expansion supporting frames 9 are pushed to enable the inner sides of the two expansion baffles 10 to be contacted with the two ends of the reinforcing steel bar, the expansion bracket fixing bolts 12 are screwed clockwise to fix the expansion supporting frames 9, at the moment, the supporting plates at the inner sides of the bottom of the expansion supporting frames 9 can also play a supporting role for supporting the reinforcing steel bar, and the reinforcing steel bar can not slide out outwards when hoisting, and can also carry on the whole width change according to the different reinforcing bar of length, only need to rotate the expansion baffle 10 after dismantling the baffle fixing bolt 11 of one side when taking out the reinforcing bar, in this way, can facilitate the reinforcing bar to take out more, still there are controllers and wireless transmission devices in the control box 5 of this apparatus, there are accumulators in the power supply box 6, the accumulator is connected through the circuit with controller and wireless transmission device and ultrasonic sensor 7, when this apparatus is close to the building, the ultrasonic sensor 7 will detect the building and transmit the signal to the controller, the controller will transmit the signal through the wireless transmission device and send out the police dispatch newspaper to the tower crane control personnel's receiving terminal, thus make the adjustment in time, in this way, can also reduce the collision caused because of the visual error effectively, the model of the ultrasonic sensor 7 in this apparatus is CDY11-JCS3505, the line connection of the controller, the wireless transmission device and the ultrasonic sensor 7, the specific working principle and the program thereof are set as the mature technologies known by people in the field, and are not described in detail herein, and even if the device is accidentally collided in the hoisting process, two main buffer rubber strips 8 and four side buffer strips 13 on the outer side can also play a role in preventing shock in four directions, so that the abrasion of the device is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a anticollision early warning device in advance based on construction tower crane which characterized in that: comprises a main supporting frame (1); a main supporting plate (14) is fixedly connected between the two groups of main supporting frames (1) through welding; eight reinforcing cross rods (15) are fixedly arranged between the two groups of main supporting frames (1) at equal intervals by welding, and the reinforcing cross rods (15) are positioned below the main supporting plates (14); the tops of the two groups of main supporting frames (1) are fixedly and symmetrically provided with three connecting rods (2) through welding; the tops of two groups of six connecting rods (2) are fixedly welded with the bottom of the upper hanging plate (3); a hanging ring (4) is fixedly arranged at the top of the upper hanging plate (3); a control box (5) and a power box (6) are further fixedly and symmetrically arranged on two sides of the top of the upper hanging plate (3), a controller and a wireless transmission device are arranged in the control box (5), and a storage battery is arranged in the power box (6); four corners at two sides of the top of the upper hanging plate (3) are fixedly provided with an ultrasonic sensor (7); two sides of the two groups of main supporting frames (1) are movably embedded with one group of expansion supporting frames (9); the two sides of the top of the two groups of main supporting frames (1) are respectively and symmetrically embedded with twelve expansion frame fixing bolts (12) of four groups through threads; an expansion baffle plate (10) is movably arranged between the two groups of expansion supporting frames (9), and a baffle plate fixing bolt (11) is arranged at the top of each group of expansion supporting frames (9) through threads;
the expansion supporting frame (9) is composed of two L-shaped rods, the expansion baffle plate (10) is movably arranged in the middle of the vertical part of the expansion supporting frame (9), and the bottom of the expansion baffle plate (10) is movably connected with the inner side of the expansion supporting frame (9) through a rotating shaft;
the top parts of two sides of the main support frame (1) are respectively provided with three threaded holes which are arranged at equal intervals, the distance between the threaded holes is 10cm, the expansion frame fixing bolts (12) are respectively screwed into the threaded holes, and the bottoms of the expansion frame fixing bolts (12) can penetrate through the threaded holes and are embedded into the through groove in the middle of the main support frame (1) to be contacted with the top part of the expansion support frame (9);
the expansion supporting frames (9) can slide at any position on the left side and the right side of the main supporting frame (1) and are fixed through expansion frame fixing bolts (12), and the expansion baffle plates (10) between the expansion supporting frames (9) can be adjusted to be in a vertical state or a horizontal and inclined state through rotation when in use;
the outer sides of the main support frames (1) are fixedly and symmetrically provided with two main buffering rubber strips (8) with the thickness of 5cm, the outer sides of the two groups of extension support frames (9) are fixedly and symmetrically provided with two side buffering strips (13) with the thickness of 5cm, and the two main buffering rubber strips (8) and the four side buffering strips (13) are respectively distributed in the front, the back, the left and the right of the device.
2. The pre-collision-prevention early warning device based on the building construction tower crane according to claim 1, characterized in that: the bottom inboard of extension support frame (9) still all is provided with a horizontally layer board through welded fastening, and the width of layer board equals with the width of consolidating horizontal pole (15), and the last plane of layer board is located the lower plane bottom of main tributary fagging (14), when inwards promoting main tributary strut frame (1) one side with extension support frame (9), the layer board in the middle of extension support frame (9) bottom can insert in the dead slot of main tributary fagging (14) below.
3. The pre-collision-prevention early warning device based on the building construction tower crane according to claim 1, characterized in that: the height of the extension baffle plate (10) is 40cm, and the two sides of the extension baffle plate (10) are both provided with a circular hole which can embed one end of a baffle plate fixing bolt (11), so that the extension baffle plate (10) is fixed in a vertical state, and the extension baffle plate (10) can be rotated and leveled after the baffle plate fixing bolt (11) is detached.
4. The pre-collision-prevention early warning device based on the building construction tower crane according to claim 1, characterized in that: the middle of the main support frame (1) is a square through groove, and the extension support frame (9) can be just embedded into the through groove in the middle of the main support frame (1) and can slide left and right in the through groove.
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| CN202010663592.0A CN111717776B (en) | 2020-07-10 | 2020-07-10 | Pre-collision-prevention early warning device based on building construction tower crane |
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| CN202010663592.0A CN111717776B (en) | 2020-07-10 | 2020-07-10 | Pre-collision-prevention early warning device based on building construction tower crane |
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| CN201809063U (en) * | 2009-11-03 | 2011-04-27 | 南通通镭软件有限公司 | Locating device for container spreader of crane |
| CN205653033U (en) * | 2016-04-29 | 2016-10-19 | 大连保税区荣昌消防设备工程有限公司 | Automatic balanced aerial handling frame |
| CN109896412A (en) * | 2017-12-09 | 2019-06-18 | 湖南城建职业技术学院 | A kind of timber lifting transloading equipment of safety and stability |
| CN108394805A (en) * | 2018-03-14 | 2018-08-14 | 重庆明君建筑劳务有限公司 | Rebar fixing device |
| CN108975151A (en) * | 2018-09-19 | 2018-12-11 | 深圳市星鼎源科技有限公司 | A kind of reinforcing bar conveyer that stable equilibrium is conveniently unloaded |
| CN209853550U (en) * | 2019-04-05 | 2019-12-27 | 广西理工职业技术学校 | Hoisting accessory for building engineering |
| CN110775839A (en) * | 2019-10-10 | 2020-02-11 | 六安长城钢结构有限公司 | Universal hoisting equipment for steel pipes and steel plates |
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| CN111717776A (en) | 2020-09-29 |
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