阅读说明：本技术 一种防止工地用施工升降机失重下坠以及预警的装置 (Device for preventing construction elevator from weightless dropping and early warning for construction site ) 是由 朱紫晔 于 2021-07-30 设计创作，主要内容包括：本发明涉及建筑机械设备技术领域,且公开了一种防止工地用施工升降机失重下坠以及预警的装置,包括制动机构和预警机构,所述制动机构包括外框,所述外框的内部开设有气室,所述外框的内部底端开设的孔内部活动连接有活塞块,所述活塞块的内侧面固定连接有摩擦块。当施工升降机失重下坠时,由于其重力加速度作用,通过齿条板带动齿轮急速转动,齿轮转速增大,与电磁铁产生的电流跟着增强,此时电磁铁产生的磁性也会增强,向下排斥磁块,挤压压杆向下移动,此时压杆中间的复位弹簧压缩变形蓄积弹性势能,便于之后复位,压杆受压向下和报警触头接触,触发预警,提醒下方人们迅速远离升降机,避免了人员伤亡。(The invention relates to the technical field of construction machinery equipment, and discloses a device for preventing a construction elevator for a construction site from weightlessness and falling and early warning, which comprises a braking mechanism and an early warning mechanism, wherein the braking mechanism comprises an outer frame, an air chamber is arranged in the outer frame, a piston block is movably connected in a hole arranged at the bottom end in the outer frame, and a friction block is fixedly connected to the inner side surface of the piston block. When the construction elevator is weightless and falls down, due to the action of the gravity acceleration, the gear is driven to rotate rapidly through the rack plate, the rotating speed of the gear is increased, the current generated by the electromagnet is enhanced, the magnetism generated by the electromagnet is also enhanced at the moment, the magnet is repelled downwards, the extrusion pressing rod moves downwards, the compression deformation of the reset spring in the middle of the pressing rod accumulates elastic potential energy, the reset is facilitated and then is reset, the pressing rod is pressed downwards to be in contact with the alarm contact, the early warning is triggered, people below the pressing rod are reminded to keep away from the elevator rapidly, and casualties are avoided.)

1. The utility model provides a prevent building site with device of construction elevator weightlessness tenesmus and early warning which characterized in that: including brake mechanism (2) and early warning mechanism (3), brake mechanism (2) are including frame (21), air chamber (22) have been seted up to the inside of frame (21), the downthehole swing joint that the inside bottom of frame (21) was seted up has piston block (23), the medial surface fixedly connected with clutch blocks (24) of piston block (23).

2. The device for preventing the weight loss and the early warning of the construction hoist for the construction site according to claim 1, wherein: early warning mechanism (3) are including door frame (31), the top outside fixedly connected with base (32) of door frame (31), two fixed plates (33) of the upper and lower both sides fixedly connected with symmetry of base (32), the inside top fixedly connected with electro-magnet (34) of door frame (31), the bottom fixedly connected with magnetic path (35) of electro-magnet (34), the bottom fixedly connected with depression bar (36) of magnetic path (35), the inside center fixedly connected with warning contact (37) of door frame (31).

3. The device for preventing the weight loss and the early warning of the construction hoist for the construction site according to claim 1, wherein: still include drive mechanism (1), drive mechanism (1) includes gear (11), the outside meshing of gear (11) has rack plate (12), the inside joint of gear (11) has conductor (13), the straight slat of fixedly connected with (14) is located at the front center of gear (11), the center of straight slat (14) is rotated and is connected with push rod (15), the top fixedly connected with piston device (16) of push rod (15), the top outside sliding connection of push rod (15) has spacing groove (17), the top both sides joint of piston device (16) has trachea (18).

4. The device for preventing the weight loss and the early warning of the construction hoist for the construction site according to claim 1, wherein: the two sides of the top of the gear (11) are clamped in the braking mechanism (2), and the top of the piston device (16) is movably connected with the bottoms of the two sides of the outer frame (21) through an air pipe (18).

5. The device for preventing the weightlessness and the falling and the early warning of the construction hoist for the construction site according to claim 2, wherein: the top of base (32) rotates and is connected with gear (11), electro-magnet (34) and gear (11) are closely apart from.

6. The device for preventing the weight loss and the early warning of the construction hoist for the construction site according to claim 1, wherein: the top fixedly connected with spacing groove (17) of base (32), the inside joint of arrestment mechanism (2) has gear (11), trachea (18) and piston device (16) swing joint are passed through to the both sides of arrestment mechanism (2), warning contact (37) fixed connection is under depression bar (36).

Technical Field

The invention relates to the field of construction machinery equipment, in particular to a device for preventing a construction elevator for a construction site from weightlessness and falling and early warning.

Background

The construction elevator is also called a construction elevator for buildings, is a manned cargo-carrying construction machine frequently used in buildings, and is comfortable and safe to ride due to the unique box body structure; the construction elevator is usually used together with a tower crane on a construction site, and the transportation mode is a vertical transportation mode, so that materials or constructors are transported to a high-rise building.

The construction elevator is widely applied, is indispensable equipment for construction sites, and needs to be regularly checked for safety in order to ensure safety, so that the weight loss of the construction elevator is prevented from accidents; because the construction elevator adopts a vertical transportation mode, the condition of weightlessness and falling in the transportation process is extremely dangerous, the vertical falling speed is extremely high, people below the construction elevator can not react and can not avoid in time, and the casualties are caused.

Disclosure of Invention

The invention aims to provide a device for preventing a construction elevator for a construction site from weightlessness and falling and early warning, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a prevent device of building site with construction elevator weightlessness tenesmus and early warning, includes arrestment mechanism and early warning mechanism, arrestment mechanism includes the frame, the air chamber has been seted up to the inside of frame, the downthehole swing joint that the inside bottom of frame was seted up has the piston piece, the medial surface fixedly connected with clutch blocks of piston piece.

Further, the early warning mechanism includes the door frame, the top outside fixedly connected with base of door frame, two fixed plates of upper and lower both sides fixedly connected with symmetry of base, the inside top fixedly connected with electro-magnet of door frame, the bottom fixedly connected with magnetic path of electro-magnet, the bottom fixedly connected with depression bar of magnetic path, the inside center fixedly connected with warning contact of door frame.

Further, still include drive mechanism, drive mechanism includes the gear, the outside meshing of gear has the rack board, the inside joint of gear has the conductor, the straight slat of front center department fixedly connected with of gear, the center of straight slat rotates and is connected with the push rod, the top fixedly connected with piston device of push rod, the top outside sliding connection of push rod has the spacing groove, piston device's top both sides joint has the trachea.

Furthermore, the two sides of the top of the gear are clamped in the braking mechanism, and the top of the piston device is movably connected with the bottoms of the two sides of the outer frame through an air pipe.

Furthermore, the top of base is rotated and is connected with the gear, the electro-magnet is nearer with the gear distance.

Furthermore, the top fixedly connected with spacing groove of base, arrestment mechanism's inside joint has the gear, arrestment mechanism's both sides are through trachea and piston device swing joint, warning contact fixed connection is under the depression bar.

Compared with the prior art, the invention has the following beneficial effects:

1. when the construction elevator normally operates, the gear is driven to rotate through the rack plate, and at the moment, the gear normally rotates and is weaker than the current generated by the electromagnet, so that the magnet cannot be pushed to move downwards to trigger early warning, and all the steps are normal; when the construction elevator is weightless and falls down, due to the action of the gravity acceleration, the gear is driven to rotate rapidly through the rack plate, the rotating speed of the gear is increased, the current generated by the electromagnet is enhanced, the magnetism generated by the electromagnet is also enhanced at the moment, the magnet is repelled downwards, the extrusion pressing rod moves downwards, the compression deformation of the reset spring in the middle of the pressing rod accumulates elastic potential energy, the reset is facilitated and then is reset, the pressing rod is pressed downwards to be in contact with the alarm contact, the early warning is triggered, people below the pressing rod are reminded to keep away from the elevator rapidly, and casualties are avoided.

2. When the construction elevator is weightless and falls down, the gear rapidly rotates to drive the straight strip plates on the surface of the gear to rotate along with the gear, the push rod is driven to rotate up and down, the motion path of the push rod is limited by the limiting groove, the piston device is driven to reciprocate up and down, the piston device is continuously extruded, the gas in the piston device is rapidly increased at the moment, the air pressure is increased, the gas is discharged into the braking mechanism through the air pipe, the air chamber is filled with gas at the moment, the piston block is extruded to the air hole at the bottom, the piston block is pressed to move outwards, the friction block is driven to extrude the surface of the gear, the gear speed is reduced through friction, the braking effect is achieved, and therefore the weightless and falling down of the construction elevator is prevented.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the left half of the present invention;

FIG. 3 is a schematic structural diagram of the early warning mechanism of the present invention;

FIG. 4 is a schematic view of the structure of the transmission mechanism of the present invention;

fig. 5 is a schematic structural diagram of the braking mechanism of the present invention.

In the figure: 1. a transmission mechanism; 2. a brake mechanism; 3. an early warning mechanism; 11. a gear; 12. a rack plate; 13. a conductor; 14. a straight strip plate; 15. a push rod; 16. a piston device; 17. a limiting groove; 18. an air tube; 21. an outer frame; 22. an air chamber; 23. a piston block; 24. a friction block; 31. a door frame; 32. a base; 33. a fixing plate; 34. an electromagnet; 35. a magnetic block; 36. a pressure lever; 37. alarm contacts.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3, a device for preventing weight loss and falling of a construction elevator for a construction site and pre-warning comprises a brake mechanism 2 and a pre-warning mechanism 3, wherein the pre-warning mechanism 3 comprises a door frame 31, a base 32 is fixedly connected to the outer side of the top of the door frame 31, two symmetrical fixing plates 33 are fixedly connected to the upper side and the lower side of the base 32, an electromagnet 34 is fixedly connected to the top end of the interior of the door frame 31, a magnetic block 35 is fixedly connected to the bottom end of the electromagnet 34, a pressing rod 36 is fixedly connected to the bottom end of the magnetic block 35, a warning contact 37 is fixedly connected to the center of the interior of the door frame 31, the device further comprises a transmission mechanism 1, the transmission mechanism 1 comprises a gear 11, a rack plate 12 is engaged with the outer side of the gear 11, a conductor 13 is clamped inside the gear 11, a straight strip plate 14 is fixedly connected to the center of the front side of the gear 11, a push rod 15 is rotatably connected to the center of the straight strip 14, and a piston device 16 is fixedly connected to the top end of the push rod 15, the top outside sliding connection of push rod 15 has spacing groove 17, and the top both sides joint of piston device 16 has trachea 18, and the top of base 32 rotates and is connected with gear 11, and electro-magnet 34 is nearer with gear 11 distance.

When the construction elevator normally operates, the gear 11 is driven to rotate through the rack plate 12, at the moment, the gear 11 normally rotates, the current generated by the electromagnet 34 is weaker than that generated by the electromagnet, the magnet 35 cannot be pushed to move downwards to trigger early warning, and all the steps are normal; when the construction elevator is weightless and falls down, due to the action of the gravity acceleration, the gear 11 is driven to rotate rapidly through the rack plate 12, the rotating speed of the gear 11 is increased, the current generated by the electromagnet 34 is enhanced, the magnetism generated by the electromagnet 34 is enhanced at the moment, the magnet 35 is repelled downwards, the compression rod 36 is extruded to move downwards, the elastic potential energy is accumulated by the compression deformation of the reset spring in the middle of the compression rod 36 at the moment, the compression rod 36 is convenient to reset later, the compression rod 36 is pressed downwards to be in contact with the alarm contact 37, the early warning is triggered, people below the construction elevator are reminded to keep away from the elevator rapidly, and casualties are avoided.

Example two:

referring to fig. 4-5, a device for preventing weight loss and falling of a construction elevator for a construction site and early warning comprises a brake mechanism 2 and an early warning mechanism 3, wherein the brake mechanism 2 comprises an outer frame 21, an air chamber 22 is arranged inside the outer frame 21, a piston block 23 is movably connected inside a hole arranged at the bottom end inside the outer frame 21, a friction block 24 is fixedly connected on the inner side surface of the piston block 23, the transmission mechanism 1 further comprises a transmission mechanism 1, the transmission mechanism 1 comprises a gear 11, a rack plate 12 is engaged outside the gear 11, a conductor 13 is clamped inside the gear 11, a straight plate 14 is fixedly connected at the center of the front surface of the gear 11, a push rod 15 is rotatably connected at the center of the straight plate 14, a piston device 16 is fixedly connected at the top end of the push rod 15, a limit groove 17 is slidably connected at the outer side of the top end of the push rod 15, air pipes 18 are clamped at two sides of the top of the piston device 16, two sides of the top of the gear 11 are clamped inside the brake mechanism 2, the top of the piston device 16 is movably connected with the bottoms of the two sides of the outer frame 21 through the air pipe 18.

When the construction elevator is weightless and falls down, the gear 11 rotates rapidly to drive the straight strip plates 14 on the surface to rotate along with the gear, the push rod 15 is driven to rotate up and down, the motion path of the push rod 15 is limited by the limiting groove 17 to reciprocate up and down, the piston device 16 is continuously extruded, at the moment, the gas in the piston device 16 is rapidly increased, the air pressure is increased, the gas is discharged into the braking mechanism 2 through the air pipe 18, the gas chamber 22 is filled with gas, the piston block 23 is extruded to the air hole at the bottom, the piston block 23 is pressed to move outwards, the friction block 24 is driven to extrude the surface of the gear 11, the speed of the gear 11 is reduced through friction, the braking effect is achieved, and therefore the weight loss and falling of the construction elevator are prevented.

Example three:

referring to fig. 1-5, a device for preventing weight loss and falling of a construction elevator for a construction site and early warning comprises a brake mechanism 2 and an early warning mechanism 3, wherein the brake mechanism 2 comprises an outer frame 21, an air chamber 22 is arranged inside the outer frame 21, a piston block 23 is movably connected inside a hole arranged at the bottom end inside the outer frame 21, a friction block 24 is fixedly connected on the inner side surface of the piston block 23, the transmission mechanism 1 comprises a gear 11, a rack plate 12 is engaged outside the gear 11, a conductor 13 is clamped inside the gear 11, a straight strip plate 14 is fixedly connected at the front center of the gear 11, a push rod 15 is rotatably connected at the center of the straight strip plate 14, a piston device 16 is fixedly connected at the top end of the push rod 15, a limit groove 17 is slidably connected at the outer side of the top end of the push rod 15, air pipes 18 are clamped at two sides of the top of the piston device 16, two sides of the top of the gear 11 are clamped inside the brake mechanism 2, the top of the piston device 16 is movably connected with the bottoms of the two sides of the outer frame 21 through the air pipe 18.

When the construction elevator normally operates, the gear 11 is driven to rotate through the rack plate 12, at the moment, the gear 11 normally rotates, the current generated by the electromagnet 34 is weaker than that generated by the electromagnet, the magnet 35 cannot be pushed to move downwards to trigger early warning, and all the steps are normal; when the construction elevator is weightless and falls down, due to the action of the gravity acceleration, the gear 11 is driven to rotate rapidly through the rack plate 12, the rotating speed of the gear 11 is increased, the current generated by the electromagnet 34 is enhanced, the magnetism generated by the electromagnet 34 is enhanced at the moment, the magnet 35 is repelled downwards, the compression rod 36 is extruded to move downwards, the elastic potential energy is accumulated by the compression deformation of the reset spring in the middle of the compression rod 36 at the moment, the compression rod 36 is convenient to reset later, the compression rod 36 is pressed downwards to be in contact with the alarm contact 37, the early warning is triggered, people below the construction elevator are reminded to keep away from the elevator rapidly, and casualties are avoided.

When the construction elevator is weightless and falls down, the gear 11 rotates rapidly to drive the straight strip plates 14 on the surface to rotate along with the gear, the push rod 15 is driven to rotate up and down, the motion path of the push rod 15 is limited by the limiting groove 17 to reciprocate up and down, the piston device 16 is continuously extruded, at the moment, the gas in the piston device 16 is rapidly increased, the air pressure is increased, the gas is discharged into the braking mechanism 2 through the air pipe 18, the gas chamber 22 is filled with gas, the piston block 23 is extruded to the air hole at the bottom, the piston block 23 is pressed to move outwards, the friction block 24 is driven to extrude the surface of the gear 11, the speed of the gear 11 is reduced through friction, the braking effect is achieved, and therefore the weight loss and falling of the construction elevator are prevented.

The outer side of the top of the doorframe 31 is fixedly connected with a base 32, the upper side and the lower side of the base 32 are fixedly connected with two symmetrical fixing plates 33, the top end of the interior of the doorframe 31 is fixedly connected with an electromagnet 34, the bottom end of the electromagnet 34 is fixedly connected with a magnet block 35, the bottom end of the magnet block 35 is fixedly connected with a pressure bar 36, the center of the interior of the doorframe 31 is fixedly connected with an alarm contact 37, the door frame further comprises a transmission mechanism 1, the transmission mechanism 1 comprises a gear 11, the outer side of the gear 11 is engaged with a rack plate 12, the interior of the gear 11 is clamped with a conductor 13, the front center of the gear 11 is fixedly connected with a straight strip plate 14, the center of the straight strip plate 14 is rotatably connected with a push rod 15, the top end of the push rod 15 is fixedly connected with a piston device 16, the outer side of the top end of the push rod 15 is slidably connected with a limiting groove 17, the two sides of the top of the piston device 16 are clamped with air pipes 18, the top of the base 32 is rotatably connected with the gear 11, the electromagnet 34 is closer to the gear 11, the top of the base 32 is fixedly connected with the limiting groove 17, the gear 11 is clamped in the braking mechanism 2, two sides of the braking mechanism 2 are movably connected with the piston device 16 through the air pipe 18, and the alarm contact 37 is fixedly connected under the pressure rod 36.

The working principle is as follows: when the construction elevator normally operates, the gear 11 is driven to rotate through the rack plate 12, at the moment, the gear 11 normally rotates, the current generated by the electromagnet 34 is weaker than that generated by the electromagnet, the magnet 35 cannot be pushed to move downwards to trigger early warning, and all the steps are normal; when the construction elevator is weightless and falls down, due to the action of the gravity acceleration, the gear 11 is driven to rotate rapidly through the rack plate 12, the rotating speed of the gear 11 is increased, the current generated by the electromagnet 34 is enhanced, the magnetism generated by the electromagnet 34 is enhanced at the moment, the magnet 35 is repelled downwards, the compression rod 36 is extruded to move downwards, the elastic potential energy is accumulated by the compression deformation of the reset spring in the middle of the compression rod 36 at the moment, the compression rod 36 is convenient to reset later, the compression rod 36 is pressed downwards to be in contact with the alarm contact 37, the early warning is triggered, people below the construction elevator are reminded to keep away from the elevator rapidly, and casualties are avoided.

When the construction elevator is weightless and falls down, the gear 11 rotates rapidly to drive the straight strip plates 14 on the surface to rotate along with the gear, the push rod 15 is driven to rotate up and down, the motion path of the push rod 15 is limited by the limiting groove 17 to reciprocate up and down, the piston device 16 is continuously extruded, at the moment, the gas in the piston device 16 is rapidly increased, the air pressure is increased, the gas is discharged into the braking mechanism 2 through the air pipe 18, the gas chamber 22 is filled with gas, the piston block 23 is extruded to the air hole at the bottom, the piston block 23 is pressed to move outwards, the friction block 24 is driven to extrude the surface of the gear 11, the speed of the gear 11 is reduced through friction, the braking effect is achieved, and therefore the weight loss and falling of the construction elevator are prevented.

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