CN111994815A - Safety building hoisting accessory - Google Patents
Safety building hoisting accessory Download PDFInfo
- Publication number
- CN111994815A CN111994815A CN202010867998.0A CN202010867998A CN111994815A CN 111994815 A CN111994815 A CN 111994815A CN 202010867998 A CN202010867998 A CN 202010867998A CN 111994815 A CN111994815 A CN 111994815A
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- CN
- China
- Prior art keywords
- block
- groove
- rectangular
- locking
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/04—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes actuated by centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/32—Detent devices
- B66D5/34—Detent devices having latches
Abstract
The invention discloses a safe building hoisting device, which comprises a fixed block fixedly arranged on the lower end surface of a suspension, wherein a first rectangular groove with a right opening is arranged in the fixed block, a hoisting shaft which extends leftwards and is in power connection with a motor is rotationally arranged on the left end wall of the first rectangular groove, a second rectangular groove with a right opening is arranged in the hoisting shaft, a first electric connecting sheet which is connected with the motor in series is fixedly arranged on the left end wall of the second rectangular groove, a first rectangular block is slidably arranged in the first rectangular groove, a rotating groove with a left opening is arranged in the first rectangular block, a speed reduction assembly for reducing the rotating speed of the hoisting shaft is arranged in the rotating groove, locking grooves are arranged on the right sides of the upper end wall and the lower end wall of the first rectangular groove, and a locking assembly for locking the first rectangular block in the first rectangular groove is arranged on the right side of the first rectangular block, and a safety protection assembly is arranged on the left side of the first rectangular groove.
Description
Technical Field
The invention relates to the technical field of hoisting, in particular to a safe building hoisting device.
Background
The lifting device is used in many places, especially in the building field, the lifting device can transfer heavy objects to another place, therefore, the required operation is completed, the hoisting equipment generally utilizes the steel wire rope, the steel wire rope is coiled by the motor during hoisting, the steel wire rope is coiled when the steel wire rope is lowered, when the hoisting equipment suffers from power failure, generally, the heavy objects are put back to the place to sequentially prevent the heavy objects from shaking by wind to cause fatigue of the steel wire rope, the general hoisting equipment is provided with a protection component, when the heavy objects are put down, professional maintenance personnel intermittently open a brake of the hoisting winch or open a brake pull handle by hands to lead the hoisted object to descend for a short distance each time, the descending speed is not more than the rated speed, and finally the hoisted object is descended to the ground, however, manual operation has a lot of uncertainty, and the descending speed is difficult to control, so that a great potential safety hazard exists.
Disclosure of Invention
The invention aims to provide a safety building hoisting device, which can solve the problems in the prior art.
The invention is realized by the following technical scheme: the invention relates to a safe building hoisting device, which comprises a fixed block fixedly arranged on the lower end surface of a suspension, wherein a first rectangular groove with a right opening is arranged in the fixed block, a hoisting shaft which extends leftwards and is in power connection with a motor is rotatably arranged on the left end wall of the first rectangular groove, a second rectangular groove with a right opening is arranged in the hoisting shaft, a first electric connecting sheet which is connected with the motor in series is fixedly arranged on the left end wall of the second rectangular groove, a first rectangular block is slidably arranged in the first rectangular groove, a rotating groove with a left opening is arranged in the first rectangular block, a speed reduction assembly for reducing the rotating speed of the hoisting shaft is arranged in the rotating groove, locking grooves are arranged on the right sides of the upper end wall and the lower end wall of the first rectangular groove, and a locking assembly for locking the first rectangular block in the first rectangular groove is arranged on the right side of the first rectangular block, the safety protection assembly is arranged on the left side of the first rectangular groove, a second electric connection sheet and a third electric connection sheet are fixedly mounted on the upper side and the lower side of the left end face of the first rectangular block respectively, and a fourth electric connection sheet and a fifth electric connection sheet are fixedly mounted on the upper side and the lower side of the left end wall of the first rectangular groove respectively.
According to the technical scheme, the speed reduction assembly comprises a rotating block which is matched with the rotating groove in a rotating mode, a first sliding groove is formed in the rotating block in a vertically symmetrical mode, a friction block is arranged in the first sliding groove in a sliding mode and is provided with a first electromagnet, the friction block faces towards the inner end face of the first electromagnet, a first armature block is fixedly arranged in the end face of the first electromagnet, a first jacking spring is arranged between the friction block and the inner wall of the first sliding groove, the left end face of the rotating block is fixedly arranged with a second rectangular block matched with the first rectangular groove, the left end face of the second rectangular block is fixedly arranged with a conductive head which can be abutted to the first electric connecting piece and is electrically connected with the first electromagnet, and a triggering assembly used for triggering the safety protection assembly is arranged on the right side of the rotating block.
According to the technical scheme, the trigger assembly comprises a second sliding groove with an opening, a trigger block is arranged in the second sliding groove in a sliding mode, a second jacking spring is installed between the inner wall of the second sliding groove, the trigger block is far away from the end face of the second jacking spring, a sixth electric connecting piece is fixedly installed on the end face of the second jacking spring, a conducting ring which can be abutted against the sixth electric connecting piece is annularly arranged on the inner wall of the rotating groove, a second electromagnet which is electrically connected with the conducting head is fixedly installed on the bottom wall of the second sliding groove, and a second armature block is fixedly installed on the lower end wall of the trigger block.
According to a further technical scheme, the safety protection assembly comprises a rotating cavity which is arranged on the left side of the first rectangular groove and is penetrated through by the through hole of the hoisting shaft, a gear fixedly connected with the hoisting shaft is arranged in the rotating cavity, telescopic grooves are symmetrically arranged on the upper side and the lower side of the rotating cavity, locking blocks matched with the gear are slidably arranged in the telescopic grooves, third sliding grooves are symmetrically arranged on the upper side and the lower side of the rotating cavity, connecting blocks fixedly connected with the locking blocks are slidably arranged in the third sliding grooves, a communicating groove is communicated between the two third sliding grooves, telescopic blocks fixedly connected with the connecting blocks are symmetrically arranged in the communicating groove from top to bottom, third armature blocks and third electromagnets are respectively arranged in the opposite end surfaces of the upper telescopic block and the lower telescopic block, and a third jacking spring is arranged between the connecting block and the end wall of the third sliding groove, which is close to the rotating cavity, the rear end face of the rear telescopic block is provided with oblique teeth, the rear end of the rear telescopic block is provided with a sliding cavity in the rear end wall of the communicating groove, a lock rod is slidably mounted between the sliding cavity and the communicating groove, the front end of the lock rod is provided with a first inclined plane, a manual rod is slidably mounted in the rear end wall of the sliding cavity, the rear end of the manual rod extends out of the fixed block and is provided with a pull ring, and the sliding cavity is provided with a fourth jacking spring located on the manual rod.
Further technical scheme, the locking subassembly includes that the longitudinal symmetry sets up in the first rectangle piece and the opening orientation the fourth sliding tray of locking groove, slidable mounting has the locking strip in the fourth sliding tray, the locking strip orientation locking groove terminal surface is provided with the second inclined plane, fourth sliding tray right side is provided with outside communicating through-hole, the locking strip with the fourth sliding tray is kept away from install fifth roof pressure spring between the terminal surface on second inclined plane, locking strip right-hand member face fixed mounting has and passes the through-hole stretches outside action bars, be provided with the handle hole in the action bars.
According to the technical scheme, the fourth electric connecting piece is connected with the positive electrode of a storage battery arranged in the fixing block, the second electric connecting piece is electrically connected with the conducting ring, the second armature block is electrically connected with the third electric connecting piece, the fifth electric connecting piece is electrically connected with the third electromagnet, and the third electromagnet is connected with the negative electrode of the storage battery.
The invention has the beneficial effects that: when the device is in a power failure condition, the danger of the hoisting shaft caused by the overlarge rotating speed of the self weight of the heavy object can be automatically prevented through the speed reduction assembly, and when the friction block and the inner wall of the first rectangular groove are interacted for a long time and are out of work, the gear is locked by the safety protection assembly to prevent the hoisting shaft from rotating, and then a new speed reduction assembly can be quickly completed, so that the potential safety hazard is greatly reduced.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the internal structure of a safety building hoist according to the present invention;
fig. 2 is a schematic view in the direction of arrows in fig. 1.
Detailed Description
As shown in fig. 1 to 2, the present invention is explained in detail, and for convenience of description, the following orientations are defined as follows: the up-down, left-right, front-back direction is consistent with the up-down, left-right, front-back direction of the projection relation of the self-body of figure 1, the safe building hoisting device of the invention comprises a fixed block 11 fixedly arranged on the lower end surface of a suspension, a first rectangular groove 40 with an opening facing right is arranged in the fixed block 11, a hoisting shaft 13 extending leftwards and connected with the power of a motor is rotatably arranged on the left end wall of the first rectangular groove 40, a second rectangular groove with an opening facing right is arranged in the hoisting shaft 13, a first electric connecting sheet 14 connected with the motor in series is fixedly arranged on the left end wall of the second rectangular groove, a first rectangular block 50 is slidably arranged in the first rectangular groove 40, a rotating groove 37 with an opening facing left is arranged in the first rectangular block 50, a speed reducing component for reducing the rotating speed of the hoisting shaft 13 is arranged in the rotating groove 37, a locking groove 24 is arranged on the right side of the upper, first rectangular block 50 right side be provided with first rectangular block 50 locks locking Assembly in first rectangular channel 40, first rectangular channel 40 left side is provided with the safety protection subassembly, both sides fixed mounting respectively about the first rectangular block 50 left end face has second electricity to connect piece 20 and third electricity to connect piece 41, both sides fixed mounting respectively about the first rectangular channel 40 left end wall has fourth electricity to connect piece 17 and fifth electricity to connect piece 12.
Advantageously, wherein the deceleration assembly comprises a rotation block 36 in rotation engagement with said rotation slot 37, first sliding grooves 35 are symmetrically arranged in the rotating blocks 36 up and down, friction blocks 38 are arranged in the first sliding grooves 35 in a sliding mode, a first electromagnet 21 is fixedly arranged between the two rotating blocks 36, a first armature block 39 is fixedly arranged in the end face of the friction block 38 facing the first electromagnet 21, a first top pressure spring 34 is arranged between the friction block 38 and the inner wall of the first sliding groove 35, a second rectangular block 51 matched with the first rectangular groove is fixedly arranged on the left end surface of the rotating block 36, a conductive head 16 which can be abutted against the first electric connecting sheet 14 and is electrically connected with the first electromagnet 21 is fixedly arranged on the left end surface of the second rectangular block 51, and a triggering component for triggering the safety protection component is arranged on the right side of the rotating block 36.
Beneficially, the triggering assembly includes a second sliding groove 27 with an opening, a triggering block 28 is slidably mounted in the second sliding groove 27, a second top pressure spring 29 is mounted between the triggering block 28 and the inner wall of the second sliding groove 27, a sixth electrical connecting sheet 22 is fixedly mounted on the end surface of the triggering block 28 far away from the second top pressure spring 29, an electrically conductive ring 23 which can be abutted against the sixth electrical connecting sheet 22 is annularly arranged on the inner wall of the rotating groove 37, a second electromagnet 52 electrically connected with the electrically conductive head 16 is fixedly mounted on the bottom wall of the second sliding groove 27, and a second engaging block 53 is fixedly mounted on the lower end wall of the triggering block 28.
Beneficially, the safety protection assembly comprises a rotating cavity 15 which is arranged on the left side of the first rectangular groove 40 and is penetrated through by the through hole 33 of the hoisting shaft 1, a gear 42 fixedly connected with the hoisting shaft 13 is arranged in the rotating cavity 15, telescopic grooves 18 are symmetrically arranged on the upper side and the lower side of the rotating cavity 15, locking blocks 19 which can be matched with the gear 42 are slidably arranged in the telescopic grooves 18, third sliding grooves 44 are further symmetrically arranged on the upper side and the lower side of the rotating cavity 15, connecting blocks 43 fixedly connected with the locking blocks 19 are slidably arranged in the third sliding grooves 44, a communicating groove 48 is communicated between the two third sliding grooves 44, telescopic blocks 46 fixedly connected with the connecting blocks 43 are symmetrically arranged in the communicating groove 48, third armature blocks 47 and third electromagnets 49 are respectively arranged in the end faces opposite to the upper telescopic blocks 46 and the lower telescopic blocks 46, and a third abutting spring is arranged between the connecting blocks 43 and the end walls of the third sliding grooves 44 close to the rotating cavity 15 The spring 45, rear side telescopic block 46 rear end face is provided with skewed tooth 61, the rear side be provided with smooth chamber 64 in the intercommunication groove 48 rear end wall, smooth chamber 64 with slidable mounting has locking lever 63 between the intercommunication groove 48, locking lever 63 front end is provided with first inclined plane 62, slidable mounting has manual pole 67 in the chamber 64 rear end wall of sliding, manual pole 67 rear end stretches out fixed block 11 and is provided with pull ring 66, smooth chamber 64 is provided with and is located fourth roof pressure spring 65 on the manual pole 67.
Beneficially, wherein, the locking assembly includes that the longitudinal symmetry sets up in first rectangular block 50 and the opening is towards fourth sliding tray 32 of locking groove 24, slidable mounting has a locking bar 26 in fourth sliding tray 32, locking bar 26 is towards locking groove 24 terminal surface is provided with second inclined plane 25, fourth sliding tray 32 right side is provided with the communicating through-hole 33 in outside, locking bar 26 with fourth sliding tray 32 keeps away from install fifth roof pressure spring 54 between the terminal surface of second inclined plane 25, locking bar 26 right-hand member face fixed mounting has and passes through-hole 33 and reach outside action bars 31, be provided with handle hole 30 in the action bars 31.
Advantageously, the fourth electrical connection piece 17 is connected to the positive pole of the battery mounted in the fixed block 11, the second electrical connection piece 20 is electrically connected to the conductive ring 23, the second armature block 53 is electrically connected to the third electrical connection piece 41, the fifth electrical connection piece 12 is electrically connected to the third electromagnet 49, and the third electromagnet 49 is connected to the negative pole of the battery, so that when the second electrical connection piece 20 and the third electrical connection piece 41 are respectively abutted against the fourth electrical connection piece 17 and the fifth electrical connection piece 12, and the sixth electrical connection piece 22 is abutted against the conductive ring 23, the third electromagnet 49 is electrically energized to generate magnetism to attract the third armature block 47.
In an initial state, the locking bar 26 extends into the locking groove 24, the first rectangular block 50 is locked in the first rectangular groove 40, the third electrical connecting piece 41 abuts against the fifth electrical connecting piece 12, the second electrical connecting piece 20 abuts against the fourth electrical connecting piece 17, and under the action of the third jacking spring 45, the locking block 19 is retracted in the telescopic groove 18.
When the equipment works, the motor is powered on and works, at the moment, the first electromagnet 21 and the second electromagnet 52 are electrified, the first electromagnet 21 acts on the first armature block 39, the second electromagnet 52 acts on the second armature block 53, so that the friction block 38 and the trigger block 28 are far away from the inner wall of the first rectangular groove 40, under the action of the motor, the hoisting shaft 13 rotates, the hoisting shaft 13 drives the winding reel thereon to reel a steel wire rope, so that a heavy object can be lifted, when power failure occurs, the first electromagnet 21 and the second electromagnet 52 are powered off, the hoisting shaft 13 can reversely rotate, at the moment, under the action of the first jacking spring 34 and the centrifugal action, the friction block 38 abuts against the inner wall of the first rectangular groove 40 to reduce the rotation speed of the hoisting shaft 13 after the rated speed is reached, at this time, the sixth electric connecting piece 22 does not abut against the conductive ring 23, so that the locking block 19 does not slide, when the friction block 38 interacts with the inner wall of the first rectangular groove 40 for a long time and fails, the hoisting shaft 13 continues to accelerate after reaching a rated speed, at this time, the sixth electric connecting piece 22 abuts against the conductive ring 23, at this time, the third electromagnet 49 is electrified and adsorbs the third armature block 47, the two telescopic blocks 46 slide relatively, so that the connecting block 43 drives the locking block 19 to slide towards the gear 42, the locking block 19 locks the gear 42 to stop rotating the hoisting shaft 13, and under the action of the lock bar 63, the telescopic blocks 46 are locked, then the operating bar 31 is used to make the locking bar 26 leave the locking groove 24, and then the first rectangular block 50 is pulled out of the first rectangular groove 40, then the speed reducing component is taken down and replaced by a new speed reducing component, the pull ring 66 is used for manually pulling the manual rod 67 backwards, the winding shaft 13 stops rotating, the sixth electric connecting sheet 22 is separated from the conducting ring 23, the third electromagnet 49 is powered down, therefore, after the manual rod 67 slides backwards, the lock rod 63 is separated from the helical tooth 61, the locking block 19 is separated from the gear 42 under the action of the third jacking spring 45, and the winding shaft 13 continues to rotate under the action of the gravity of a heavy object, thereby preventing the winding shaft 13 from rotating too much to cause danger.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a safe building hoisting accessory, includes the fixed block of fixed mounting terminal surface under the suspension, be provided with the first rectangular channel that the opening faced right in the fixed block, the hoist axle that extends left and be connected with motor power is installed to first rectangular channel left end wall internal rotation, be provided with the second rectangular channel that the opening faced right in the hoist axle, second rectangular channel left end wall fixed mounting has the first electric connection piece of establishing ties with the motor, slidable mounting has first rectangular block in the first rectangular channel, be provided with the opening in the first rectangular block and face the rotation groove of left, its characterized in that: the winch is characterized in that a speed reduction assembly for reducing the rotating speed of the winch shaft is installed in the rotating groove, a locking groove is formed in the right side of the upper end wall and the lower end wall of the first rectangular groove, the right side of the first rectangular block is provided with a locking assembly for locking the first rectangular block in the first rectangular groove, a safety protection assembly is arranged on the left side of the first rectangular groove, a second electric connection sheet and a third electric connection sheet are fixedly installed on the upper side and the lower side of the left end face of the first rectangular block respectively, and a fourth electric connection sheet and a fifth electric connection sheet are fixedly installed on the upper side and the lower side of the left end wall of the first rectangular.
2. A safety building hoist assembly as claimed in claim 1, wherein: the speed reduction subassembly include with rotation groove normal running fit's turning block, the interior longitudinal symmetry of turning block is provided with first sliding tray, sliding mounting has the clutch blocks, two in the first sliding tray fixed mounting has first electro-magnet between the turning block, the clutch blocks orientation fixed mounting has first armature block in the terminal surface of first electro-magnet, the clutch blocks with install first roof pressure spring between the first sliding tray inner wall, turning block left end face fixed mounting have with first rectangular channel complex second rectangular block, second rectangular block left end face fixed mounting can with first electric connector counterbalance and with the conductive head that first electro-magnet electricity is connected, the turning block right side is provided with and is used for triggering safety protection subassembly's trigger subassembly.
3. A safety building hoist assembly as claimed in claim 2, wherein: trigger the subassembly including having open-ended second sliding tray, slidable mounting has the trigger block in the second sliding tray, trigger the block with install second roof pressure spring between the second sliding tray inner wall, the trigger block is kept away from the terminal surface fixed mounting of second roof pressure spring has the sixth electricity to connect the piece, it is provided with can with the conducting ring that the sixth electricity connects the piece counterbalance to rotate the inslot wall ring-shaped, second sliding tray diapire fixed mounting have with the second electro-magnet that the conducting head electricity is connected, the terminal wall fixed mounting has the second armature block under the trigger block.
4. A safety building hoist assembly as claimed in claim 3, wherein: the safety protection assembly comprises a rotating cavity which is arranged on the left side of the first rectangular groove and is penetrated by the through hole of the hoisting shaft, a gear fixedly connected with the hoisting shaft is arranged in the rotating cavity, telescopic grooves are symmetrically arranged on the upper side and the lower side of the rotating cavity, locking blocks matched with the gear are slidably arranged in the telescopic grooves, third sliding grooves are also symmetrically arranged on the upper side and the lower side of the rotating cavity, connecting blocks fixedly connected with the locking blocks are slidably arranged in the third sliding grooves, a communicating groove is communicated between the two third sliding grooves, telescopic blocks fixedly connected with the connecting blocks are symmetrically arranged in the communicating groove from top to bottom, third armature blocks and third electromagnets are respectively arranged in the opposite end surfaces of the upper telescopic block and the lower telescopic block, a third jacking spring is arranged between the connecting block and the end wall of the third sliding groove close to the rotating cavity, and inclined teeth are arranged on the rear end surface of the rear telescopic block, the rear side is provided with a sliding cavity in the rear end wall of the communicating groove, a lock rod is slidably mounted between the sliding cavity and the communicating groove, a first inclined plane is arranged at the front end of the lock rod, a manual rod is slidably mounted in the rear end wall of the sliding cavity, the rear end of the manual rod extends out of the fixed block and is provided with a pull ring, and the sliding cavity is provided with a fourth jacking spring positioned on the manual rod.
5. A safety building hoist assembly as claimed in claim 4, wherein: locking subassembly includes that longitudinal symmetry sets up and in the first rectangle piece and the opening orientation the fourth sliding tray of locking groove, slidable mounting has the locking bar in the fourth sliding tray, the locking bar orientation the terminal surface of locking groove is provided with the second inclined plane, fourth sliding tray right side is provided with outside communicating through-hole, the locking bar with the fourth sliding tray is kept away from install fifth roof pressure spring between the terminal surface on second inclined plane, locking bar right-hand member face fixed mounting has and passes the through-hole stretches outside action bars, be provided with the handle hole in the action bars.
6. A safety building hoist assembly as claimed in claim 5, wherein: the fourth electric connecting piece is connected with the positive electrode of a storage battery arranged in the fixed block, the second electric connecting piece is electrically connected with the conducting ring, the second armature block is electrically connected with the third electric connecting piece, the fifth electric connecting piece is electrically connected with the third electromagnet, and the third electromagnet is connected with the negative electrode of the storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010867998.0A CN111994815B (en) | 2020-08-26 | 2020-08-26 | Safety building hoisting accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010867998.0A CN111994815B (en) | 2020-08-26 | 2020-08-26 | Safety building hoisting accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111994815A true CN111994815A (en) | 2020-11-27 |
| CN111994815B CN111994815B (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010867998.0A Active CN111994815B (en) | 2020-08-26 | 2020-08-26 | Safety building hoisting accessory |
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| CN (1) | CN111994815B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788419A (en) * | 2021-09-17 | 2021-12-14 | 武汉船用机械有限责任公司 | Constant tension winch locking device and control method thereof |
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| CN107324234A (en) * | 2017-08-08 | 2017-11-07 | 冠亚机械工业（昆山）有限公司 | A kind of electric block with overspeed protective device |
| CN210366787U (en) * | 2019-07-25 | 2020-04-21 | 江苏省特种设备安全监督检验研究院 | Safety brake for electric hoist drum |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788419A (en) * | 2021-09-17 | 2021-12-14 | 武汉船用机械有限责任公司 | Constant tension winch locking device and control method thereof |
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| CN111994815B (en) | 2021-09-17 |
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