CN112249923A - Roof frame crane for building construction - Google Patents
Roof frame crane for building construction Download PDFInfo
- Publication number
- CN112249923A CN112249923A CN202011126845.7A CN202011126845A CN112249923A CN 112249923 A CN112249923 A CN 112249923A CN 202011126845 A CN202011126845 A CN 202011126845A CN 112249923 A CN112249923 A CN 112249923A
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- CN
- China
- Prior art keywords
- fixedly arranged
- contact
- fixed
- spring
- roof frame
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- 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.)
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Classifications
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/02—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with non-adjustable and non-inclinable jibs mounted solely for slewing movements
- B66C23/022—Pivot axis common with column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
Abstract
The invention discloses a roof rack crane for building construction, which comprises a bottom plate, wherein an upright post is fixedly arranged in the middle of the upper end of the bottom plate, a workbench is movably arranged at the upper end of the upright post through a rotating shaft, an installation plate is fixedly arranged on one side of the upper end of the workbench, a supporting tube is fixedly arranged on one side, far away from the installation plate, of the upper end of the workbench, a wire spool is movably arranged in the middle of the upper end of the installation plate through the rotating shaft, a connecting rope is wound on the outer side surface of the wire spool, a motor is fixedly arranged on one side of the wire spool at the upper end of the installation plate through an installation seat, and the output shaft. The invention has good use effect, can quickly and automatically lock the connecting rope when an accident such as power failure occurs, thereby preventing danger, and can automatically lock the connecting rope when the descending speed of the connecting rope is too high without power failure, thereby improving the safety of the device when in use.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a roof frame crane for building construction.
Background
The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place. The method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like.
And often can use roof frame loop wheel machine often in building construction in order to carry devices such as cement brick, but its security of the roof frame loop wheel machine that uses at present is relatively poor lacks simple structure and triggers quick abnormal conditions locking device to thereby make the quick free fall of goods take place the accident easily when taking place abnormal conditions.
Disclosure of Invention
The invention aims to provide a roof frame crane for building construction, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a roof frame crane for building construction comprises a base plate, wherein a stand column is fixedly arranged in the middle of the upper end of the base plate, a workbench is movably arranged at the upper end of the stand column through a rotating shaft, a mounting plate is fixedly arranged on one side of the upper end of the workbench, a supporting tube is fixedly arranged on one side of the upper end of the workbench, which is far away from the mounting plate, a wire reel is movably arranged in the middle of the upper end of the mounting plate through the rotating shaft, a connecting rope is wound on the outer side surface of the wire reel, a motor is fixedly arranged on one side of the wire reel at the upper end of the mounting plate through a mounting seat, the output shaft end of the motor is in transmission connection with the rotating shaft of the wire reel through a coupler, a locking mechanism is arranged in the supporting tube and comprises a first telescopic rod, a clamping, the fixed cardboard that is provided with of one end that the inboard lateral wall of stay tube was kept away from to first telescopic link, the inboard lateral wall of stay tube is the fixed electro-magnet that is provided with between first telescopic link, the inside first spring that is provided with of first telescopic link, the fixed supporting shoe that is provided with of one end that the wire reel was kept away from to the stay tube, the supporting shoe upper end is provided with the fixed pulley through the pivot activity, connect the rope and pass the inboard laminating of stay tube at the fixed pulley outside surface, the fixed pulley place pivot is provided with trigger mechanism, the fixed couple that is provided with of one end that the wire.
Preferably, the triggering mechanism comprises a rotating disc, a fixed frame, an extension rod, a second spring, a first contact, a second telescopic rod, a second contact and a shifting piece, the rotating disc is fixedly arranged at one end of a rotating shaft where the fixed pulley is located, the fixed frame is fixedly arranged at one side inside the rotating disc, the extension rod is movably inserted and arranged inside the fixed frame, the second spring is fixedly arranged at one side inside the fixed frame, the first contact is fixedly arranged at one side of the surface of the supporting block, the second telescopic rod is fixedly arranged at one side of the first contact of the supporting block, the second contact is fixedly arranged at one end, close to the first contact, of the second telescopic rod, the first contact, the second contact and the electromagnet are electrically connected, the shifting piece is fixedly arranged at the upper end of the second contact, the third spring is arranged inside the second telescopic rod, and the triggering locking mechanism can be triggered to lock the connecting rope when the rope descending speed is too fast through the triggering structure, so as to improve the safety of the device when in use.
Preferably, the rolling disc is inside to be provided with block mechanism in the extension rod both sides, block mechanism includes third telescopic link, draw-in groove, arc fixture block, fourth spring, the rolling disc is inside to be provided with the third telescopic link in the extension rod both sides are all fixed, the draw-in groove has all been seted up to the extension rod both sides, the fixed arc fixture block that is provided with of one end that the third telescopic link is close to the draw-in groove, arc fixture block activity block sets up inside the draw-in groove, third telescopic link outside surface cover is equipped with the fourth spring, can lose the block effect when the extension rod receives great centrifugal force through block mechanism to reach triggering action.
Preferably, one side that the stay tube surface is close to the wire reel is provided with a plurality of leading wheels through the pivot activity, connect rope activity block and set up between the leading wheel, thereby can play the effect of guide connection rope through the leading wheel and can prevent to connect rope and stay tube outside surface to take place the friction and lead to damaging.
Preferably, a protective casing is fixedly arranged outside the fixed pulley outside the supporting tube, and the fixed pulley and the trigger mechanism can be protected by the protective casing.
Preferably, the middle part of the upper end of the inner side of the protection shell is movably provided with a limiting pulley through a rotating shaft, the surfaces of the limiting pulley and the fixed pulley are mutually attached, and the connecting rope can be prevented from falling off from the surface of the outer side of the fixed pulley through the limiting pulley.
Preferably, a limiting block is fixedly arranged on the surface of the supporting block on one side of the shifting piece, and the movable distance of the second contact can be limited through the limiting block.
Preferably, the extension rod is kept away from the fixed balancing weight that is provided with of one end of second spring, can conveniently throw away the extension rod through the balancing weight.
Preferably, the cardboard is the iron material, cardboard surface one side is fixed and is provided with the rubber pad, and the cardboard of iron material can be adsorbed by the electro-magnet and can improve the effect of kelly fixed connection rope through the rubber pad.
Compared with the prior art, the invention has the beneficial effects that:
1. when the device is used, if power is suddenly cut off, the electromagnet is also cut off, at the moment, the electromagnet can not adsorb the clamping plate, the clamping plate can move towards the direction close to the connecting rope under the action of the first telescopic rod and the first spring, and therefore the connecting rope can be rapidly extruded and fixed through the clamping plates, and the device can be locked, so that the danger caused by the fact that the power-off device is out of control to cause free falling of goods is avoided.
2. When the electromagnet is lifted, the connecting part of the wire spool and the motor is damaged, so that the wire spool and the connecting rope are not braked, the connecting rope is driven by goods to rapidly fall down and drive the fixed pulley to rapidly rotate, the counterweight of the extension rod is subjected to a large centrifugal force when the rotating speed of the fixed pulley is high, the arc-shaped fixture block is subjected to a large pressure when the centrifugal force is high, the extension rod is thrown outwards, the thrown extension rod can be contacted with the poking piece along with the rotation, the poking piece and the second contact can be driven to move leftwards, the first contact and the second contact are separated, the electromagnet can be powered off, the connecting rope can be locked, and the connecting rope is stopped.
3. The invention can facilitate the extension rod to be thrown out through the balancing weight, and can play a role of guiding the connecting rope through the guide wheel, thereby preventing the connecting rope from being damaged due to friction with the outer side surface of the supporting tube.
4. The fixed pulley and the trigger mechanism can be protected by the protection shell, and the connecting rope can be prevented from falling off from the outer side surface of the fixed pulley by the limiting pulley.
Drawings
FIG. 1 is a schematic view of the overall structure of a roof frame crane for construction according to the present invention;
FIG. 2 is an internal structural view of a rotating disk of a roof frame crane for construction according to the present invention;
FIG. 3 is an overall structural view of a locking mechanism of a roof frame crane for construction according to the present invention;
FIG. 4 is an enlarged view of the ceiling crane for construction at A in FIG. 1;
fig. 5 is an internal structural view of a roof frame hoist fixing frame for construction according to the present invention;
fig. 6 is an internal structural view of a roof crane protective case for construction according to the present invention.
In the figure: 1. a base plate; 2. a column; 3. a work table; 4. mounting a plate; 5. supporting a tube; 6. a wire spool; 7. connecting ropes; 8. an electric motor; 9. a first telescopic rod; 10. clamping a plate; 11. an electromagnet; 12. a first spring; 13. a support block; 14. a fixed pulley; 15. hooking; 16. rotating the disc; 17. a fixed frame; 18. an extension rod; 19. a second spring; 20. a first contact; 21. a second telescopic rod; 22. a second contact; 23. a shifting sheet; 24. a third spring; 25. a third telescopic rod; 26. a card slot; 27. an arc-shaped fixture block; 28. a fourth spring; 29. a guide wheel; 30. a protective housing; 31. a limiting pulley; 32. a limiting block; 33. a balancing weight; 34. and (7) a rubber pad.
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.
Referring to fig. 1-6, the present invention provides a technical solution: a roof frame crane for building construction comprises a bottom plate 1, wherein a vertical column 2 is fixedly arranged in the middle of the upper end of the bottom plate 1, a workbench 3 is movably arranged at the upper end of the vertical column 2 through a rotating shaft, a mounting plate 4 is fixedly arranged on one side of the upper end of the workbench 3, a supporting tube 5 is fixedly arranged on one side, far away from the mounting plate 4, of the upper end of the workbench 3, a wire reel 6 is movably arranged in the middle of the upper end of the mounting plate 4 through the rotating shaft, a connecting rope 7 is wound on the outer side surface of the wire reel 6, a motor 8 is fixedly arranged on one side of the wire reel 6 at the upper end of the mounting plate 4 through a mounting seat, the output shaft end of the motor 8 is in transmission connection with the rotating shaft where the wire reel 6 is located through a coupler, a locking mechanism is arranged inside the supporting tube 5 and comprises, the utility model discloses a wire reel, including 5 inboard lateral walls of stay tube 5, the inboard lateral wall of stay tube is evenly fixed and is provided with a plurality of first telescopic links 9, the fixed cardboard 10 that is provided with of one end that 5 inboard lateral walls of stay tube were kept away from to first telescopic link 9, 5 inboard lateral walls of stay tube are fixed between first telescopic link 9 and are provided with electro-magnet 11, first telescopic link 9 is inside to be provided with first spring 12, the fixed supporting shoe 13 that is provided with of one end that wire reel 6 was kept away from to stay tube 5, supporting shoe 13 upper end is provided with fixed pulley 14 through the pivot activity, connect rope 7 and pass 5 inboard laminating at fixed pulley 14 outside surfaces of stay tube, fixed pulley 14 place pivot is provided with trigger mechanism, connect rope.
The trigger mechanism comprises a rotating disc 16, a fixed frame 17, an extension rod 18, a second spring 19, a first contact 20, a second telescopic rod 21, a second contact 22, a shifting piece 23 and a third spring 24, wherein the rotating disc 16 is fixedly arranged at one end of a rotating shaft where the fixed pulley 14 is located, the fixed frame 17 is fixedly arranged at one side inside the rotating disc 16, the extension rod 18 is movably inserted into the fixed frame 17, the second spring 19 is fixedly arranged at one side inside the fixed frame 17, the first contact 20 is fixedly arranged at one side of the surface of the supporting block 13, the second telescopic rod 21 is fixedly arranged at one side of the first contact 20 by the supporting block 13, the second contact 22 is fixedly arranged at one end, close to the first contact 20, of the second telescopic rod 21, the first contact 20, the second contact 22 and the electromagnet 11 are electrically connected, the shifting piece 23 is fixedly arranged at the upper end of the second contact 22, the inside of the second telescopic rod 21 is provided with a third spring 24, when the descending speed of the connecting rope 7 is too high, the locking mechanism is triggered to lock the connecting rope 7 through a triggering structure, so as to improve the safety of the device in use, the inside of the rotating disc 16 is provided with clamping mechanisms at two sides of the extension rod 18, each clamping mechanism comprises a third telescopic rod 25, a clamping groove 26, an arc-shaped clamping block 27 and a fourth spring 28, the inside of the rotating disc 16 is fixedly provided with the third telescopic rod 25 at two sides of the extension rod 18, the two sides of the extension rod 18 are respectively provided with the clamping grooves 26, one end of the third telescopic rod 25 close to the clamping groove 26 is fixedly provided with the arc-shaped clamping block 27, the arc-shaped clamping block 27 is movably clamped inside the clamping groove 26, the surface of the outer side of the third telescopic rod 25 is sleeved with the fourth spring 28, and the clamping mechanism can lose the clamping, so as to achieve the triggering effect, one side of the surface of the supporting tube 5 close to the wire spool 6 is movably provided with a plurality of guide wheels 29 through a rotating shaft, the connecting rope 7 is movably clamped between the guide wheels 29, the guide wheels 29 can play a role of guiding the connecting rope 7 so as to prevent the connecting rope 7 from being damaged due to friction with the outer side surface of the supporting tube 5, the outer side of the supporting tube 5 is fixedly provided with a protective shell 30 at the outer side of the fixed pulley 14, the fixed pulley 14 and the triggering mechanism can be protected through the protective shell 30, the middle part of the upper end of the inner side of the protective shell 30 is movably provided with a limiting pulley 31 through the rotating shaft, the surface of the limiting pulley 31 is mutually attached with the surface of the fixed pulley 14, the connecting rope 7 can be prevented from falling off from the outer side surface of the fixed pulley 14 through the limiting, can restrict the displaceable distance of second contact 22 through stopper 32, extension rod 18 keeps away from the fixed balancing weight 33 that is provided with of one end of second spring 19, can conveniently throw away extension rod 18 through balancing weight 33, cardboard 10 is the iron material, cardboard 10 fixed being provided with rubber pad 34 in surface one side, the cardboard 10 of iron material can be adsorbed by electro-magnet 11 and can improve the effect of kelly fixed connection rope 7 through rubber pad 34.
The working principle is as follows: when the device is used, the device can be arranged at a target position through the bottom plate 1, then goods to be lifted can be hung through the hook 15, then the wire spool 6 is driven to rotate through the motor 8, so that the connecting rope 7 can be wound through the wire spool 6 to lift the goods, if the device is suddenly powered off during use, the electromagnet 11 can be powered off, at the moment, the electromagnet 11 can not adsorb the clamping plate 10, the clamping plate 10 can move towards the direction close to the connecting rope 7 under the action of the first telescopic rod 9 and the first spring 12, so that the connecting rope 7 can be rapidly extruded and fixed through the plurality of clamping plates 10, the device can be locked, the situation that the goods fall freely and are dangerous due to the fact that the power-off device is out of control is prevented, and when the device is not powered off, the connecting part of the wire spool 6 and the connecting rope 7 is damaged to cause the loss of braking or the connecting rope 7 is caused by other reasons to lose braking is avoided, at this time, the connecting rope 7 is driven by the goods to rapidly fall down, and the fixed pulley 14 is driven to rapidly rotate, when the rotating speed of the fixed pulley 14 is high, the counterweight 33 of the extension rod 18 is subjected to a large centrifugal force, when the centrifugal force is high, the arc-shaped fixture block 27 is subjected to a large pressure, and the arc-shaped fixture block 27 is far away from the shape, when the arc-shaped fixture block is subjected to the large pressure, the third telescopic rod 25 is contracted, so that the arc-shaped fixture block 27 is not clamped with the clamping groove 26, so that the extension rod 18 can be pushed by the second spring 19, the extension rod 18 is thrown outwards, the thrown extension rod 18 can be contacted with the poking piece 23 along with the rotation, so that the poking piece 23 and the second contact 22 can be driven to move leftwards, so that the first contact 20 is separated from the second contact 22, so that the electromagnet 11 is powered off, and the connecting rope 7 can be locked, so that the connecting, the working principle of the roof frame crane for building construction is disclosed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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.
Claims (9)
1. The utility model provides a roof frame loop wheel machine for construction, includes bottom plate (1), its characterized in that: bottom plate (1) upper end middle part is fixed and is provided with stand (2), stand (2) upper end is provided with workstation (3) through the pivot activity, workstation (3) upper end one side is fixed and is provided with mounting panel (4), one side that mounting panel (4) were kept away from in workstation (3) upper end is fixed and is provided with stay tube (5), mounting panel (4) upper end middle part is provided with wire reel (6) through the pivot activity, wire reel (6) outside surface winding is provided with connects rope (7), mounting panel (4) upper end is fixed through the mount pad in wire reel (6) one side and is provided with motor (8), the output shaft end of motor (8) passes through the shaft coupling and is connected with the transmission between wire reel (6) the pivot, the inside locking mechanism that is provided with of stay tube (5), locking mechanism includes first telescopic link (9), A clamping plate (10), an electromagnet (11) and a first spring (12), wherein a plurality of first telescopic rods (9) are uniformly and fixedly arranged on the side wall of the inner side of the supporting tube (5), a clamping plate (10) is fixedly arranged at one end of the first telescopic rod (9) far away from the side wall of the inner side of the supporting tube (5), an electromagnet (11) is fixedly arranged on the inner side wall of the supporting tube (5) between the first telescopic rods (9), a first spring (12) is arranged in the first telescopic rod (9), a supporting block (13) is fixedly arranged at one end of the supporting tube (5) far away from the wire spool (6), the upper end of the supporting block (13) is movably provided with a fixed pulley (14) through a rotating shaft, the connecting rope (7) passes through the inner side of the supporting tube (5) and is attached to the outer side surface of the fixed pulley (14), a trigger mechanism is arranged on a rotating shaft where the fixed pulley (14) is located, and a hook (15) is fixedly arranged at one end, far away from the wire spool (6), of the connecting rope (7).
2. The roof frame hoist for construction according to claim 1, characterized in that: the trigger mechanism comprises a rotating disc (16), a fixed frame (17), an extension rod (18), a second spring (19), a first contact (20), a second telescopic rod (21), a second contact (22), a shifting piece (23) and a third spring (24), wherein the rotating disc (16) is fixedly arranged at one end of a rotating shaft where the fixed pulley (14) is located, the fixed frame (17) is fixedly arranged at one side inside the rotating disc (16), the extension rod (18) is movably inserted into the fixed frame (17), the second spring (19) is fixedly arranged at one side inside the fixed frame (17), the first contact (20) is fixedly arranged at one side of the surface of the supporting block (13), the second telescopic rod (21) is fixedly arranged at one side of the first contact (20) of the supporting block (13), and the second contact (22) is fixedly arranged at one end, close to the first contact (20), of the second telescopic rod (21), the first contact (20), the second contact (22) and the electromagnet (11) are electrically connected, a shifting piece (23) is fixedly arranged at the upper end of the second contact (22), and a third spring (24) is arranged in the second telescopic rod (21).
3. The roof frame hoist for construction according to claim 2, characterized in that: the novel rotary table is characterized in that clamping mechanisms are arranged on two sides of an extension rod (18) inside a rotary table (16), each clamping mechanism comprises a third telescopic rod (25), a clamping groove (26), an arc-shaped clamping block (27) and a fourth spring (28), the third telescopic rods (25) are fixedly arranged on two sides of the extension rod (18) inside the rotary table (16), the clamping grooves (26) are formed in two sides of the extension rod (18), the arc-shaped clamping blocks (27) are fixedly arranged at one ends, close to the clamping grooves (26), of the third telescopic rods (25), the arc-shaped clamping blocks (27) are movably clamped inside the clamping grooves (26), and the fourth springs (28) are sleeved on the outer side surface of the third telescopic rods (25).
4. The roof frame hoist for construction according to claim 1, characterized in that: one side of the surface of the supporting pipe (5) close to the wire spool (6) is movably provided with a plurality of guide wheels (29) through a rotating shaft, and the connecting rope (7) is movably clamped between the guide wheels (29).
5. The roof frame hoist for construction according to claim 1, characterized in that: and a protective shell (30) is fixedly arranged on the outer side of the supporting tube (5) and on the outer side of the fixed pulley (14).
6. The roof frame hoist for construction according to claim 5, characterized in that: the protection casing (30) inboard upper end middle part is provided with spacing pulley (31) through the pivot activity, laminate each other between spacing pulley (31) surface and fixed pulley (14) surface.
7. The roof frame hoist for construction according to claim 2, characterized in that: and a limiting block (32) is fixedly arranged on one side of the shifting piece (23) on the surface of the supporting block (13).
8. The roof frame hoist for construction according to claim 2, characterized in that: and a balancing weight (33) is fixedly arranged at one end of the extension rod (18) far away from the second spring (19).
9. The roof frame hoist for construction according to claim 1, characterized in that: the clamping plate (10) is made of an iron material, and a rubber pad (34) is fixedly arranged on one side of the surface of the clamping plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011126845.7A CN112249923A (en) | 2020-10-20 | 2020-10-20 | Roof frame crane for building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011126845.7A CN112249923A (en) | 2020-10-20 | 2020-10-20 | Roof frame crane for building construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112249923A true CN112249923A (en) | 2021-01-22 |
Family
ID=74245191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011126845.7A Pending CN112249923A (en) | 2020-10-20 | 2020-10-20 | Roof frame crane for building construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN112249923A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184738A (en) * | 2021-04-20 | 2021-07-30 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
| CN117023389A (en) * | 2023-10-09 | 2023-11-10 | 阿尔法起重机有限公司 | Winch with intelligent shutdown protection function |
| CN117550482A (en) * | 2024-01-11 | 2024-02-13 | 河南德久建设工程有限公司 | Building construction hoist device |
-
2020
- 2020-10-20 CN CN202011126845.7A patent/CN112249923A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184738A (en) * | 2021-04-20 | 2021-07-30 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
| CN117023389A (en) * | 2023-10-09 | 2023-11-10 | 阿尔法起重机有限公司 | Winch with intelligent shutdown protection function |
| CN117023389B (en) * | 2023-10-09 | 2024-01-09 | 阿尔法起重机有限公司 | Winch with intelligent shutdown protection function |
| CN117550482A (en) * | 2024-01-11 | 2024-02-13 | 河南德久建设工程有限公司 | Building construction hoist device |
| CN117550482B (en) * | 2024-01-11 | 2024-03-22 | 河南德久建设工程有限公司 | Building construction hoist device |
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