CN112173944B - Intelligent rapid deconstruction device and method - Google Patents
Intelligent rapid deconstruction device and method Download PDFInfo
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- CN112173944B CN112173944B CN202011176611.3A CN202011176611A CN112173944B CN 112173944 B CN112173944 B CN 112173944B CN 202011176611 A CN202011176611 A CN 202011176611A CN 112173944 B CN112173944 B CN 112173944B
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- pin
- hole
- hoisting
- intelligent rapid
- hook
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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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Abstract
The invention discloses an intelligent rapid deconstruction device and a method thereof, wherein the device comprises a body, a pin and a hook, the hook is arranged on the body, at least one end of the pin movably penetrates through a hole at one end of the body, and the middle part of the pin is suspended and is used for hanging a hoisting member; the both ends bottom of pin sets up on this internal compression spring, the top of pin is equipped with the rack, this is internal the top position of pin is provided with electronic gear, the pin is receiving both ends pressure during the action of gravity of hoist and mount component in compression spring and with the hole dislocation, the pin is not receiving pass through during the action of gravity of hoist and mount component the rack with electronic gear engagement transmission and tip aim at in the hole. By using the intelligent rapid deconstruction device and the method thereof, the hook can be automatically deconstructed under the condition of no stress on a high place through remote control, and meanwhile, the potential safety hazard of personnel during high-place operation is reduced.
Description
Technical Field
The invention relates to the field of hoisting appliances, in particular to an intelligent rapid deconstruction device and an intelligent rapid deconstruction method.
Background
The hoisting operation is used as an important ring in the field of steel structure installation, the speed of steel structure construction is determined, and the construction quality of a steel structure is influenced to a certain degree. Due to the material property of steel, steel members during hoisting are often operated and completed by hoisting tools such as tower cranes, truck cranes and the like, and an inevitable problem exists: how to deconstruct after installation is complete. The traditional deconstruction mode often hangs the cat ladder on the steel column, and fixed back manual work is climbed to the capital end and is untied the lifting hook, and such method of doing all can has restricted the hoist and mount number of times in hoist and mount operation effective time on the one hand, has increased many potential safety hazards again in hoist and mount process and workman eminence deconstruction process on the one hand.
Disclosure of Invention
In view of the above situation, the invention provides an intelligent rapid deconstruction device and method, which can automatically deconstruct a hook at a high place without stress through remote control and simultaneously reduce the potential safety hazard of personnel during high-place operation.
In order to achieve the technical effect, the invention provides an intelligent rapid deconstruction device in a first aspect, which comprises a body, a pin and a hook, wherein the hook is arranged on the body, at least one end of the pin movably penetrates through a hole at one end of the body, and the middle part of the pin is suspended and is used for hanging a hoisting member; the both ends bottom of pin sets up on this internal compression spring, the top of pin is equipped with the rack, this is internal the top position of pin is provided with electronic gear, the pin is receiving both ends pressure during the action of gravity of hoist and mount component in compression spring and with the hole dislocation, the pin is not receiving pass through during the action of gravity of hoist and mount component the rack with electronic gear engagement transmission and tip aim at in the hole.
As an embodiment of the intelligent rapid deconstruction device, a safety buckle is arranged between the bottom of at least one end of the pin and the body, and the safety buckle locks the horizontal movement of the pin when the pin is under the action of the gravity of the hoisting member.
As an embodiment of the intelligent rapid deconstruction device of the invention, the safety buckle comprises a clamping groove formed at the bottom of at least one end of the pin and a wedge fixed in the body and positioned below the clamping groove.
As an embodiment of the intelligent rapid deconstruction device of the invention, the length of the plunger is not greater than the length of the compression spring when not compressed.
As an embodiment of the intelligent rapid deconstruction device of the invention, the body comprises a front plate, a rear plate, two end plates connected to two ends of the front plate and the rear plate, and two bottom plates connected between the front plate and the rear plate and located at bottom positions of two ends of the pin.
As an embodiment of the intelligent rapid deconstruction device, the hole is formed in at least one of the end plates, the center of the hole and the axis of the pin when the hole is not under the action of gravity of the hoisting member are on the same horizontal line, and the aperture of the hole is matched with the outer diameter of the pin.
As an implementation mode of the intelligent rapid deconstruction device, the hook is fixedly connected to the tops of the front plate and the rear plate through a bolt assembly.
As an embodiment of the intelligent rapid deconstruction device of the invention, the length of the pin is not greater than the distance between the two end plates.
As an embodiment of the intelligent rapid deconstruction device of the invention, the compression springs are fixed on the two base plates in a one-to-one correspondence.
The second aspect of the present invention provides an intelligent fast deconstruction method, which comprises:
hanging a hoisting member at the middle part of the pin, wherein two ends of the pin are pressed on compression springs at two ends of the body under the action of the gravity of the hoisting member, so that the end parts of the pin and the holes at the end parts of the body are staggered;
connecting the body hung with the hoisting component to a hoisting machine by using the hook, and hoisting the hoisting component to a position by using the hoisting machine;
releasing the compression of the hoisting component on the pin, resetting the compression spring, pushing the pin upwards to the rack at the top of the pin to be meshed with the electric gear, and aligning the end of the pin with the hole at the end of the body;
the electric gear is driven to rotate to drive the first end of the pin to move towards the hole, and the second end of the pin is separated from the body and suspended, so that the suspended second end of the pin is separated from the hoisting component, and deconstruction is completed.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: rotate the rack interconversion on electronic gear and the pin through the remote control during the couple, slowly push away the pin to this internally to the device, shelve on the compression spring at body both ends completely up to the both ends of pin, under the action of gravity of hoist and mount component, the pin moves down and breaks away from electronic gear, and the hole dislocation of tip and this tip end, so can guarantee the hoist and mount in-process, can not wear out from the hole when the pin because of electronic gear's maloperation, play the dual fail-safe effect. When the component is hoisted in place, the pin is not under the action of the gravity of the component, at the moment, under the action of the reset force of the compression spring, the rack which is jacked upwards to the top of the pin is meshed with the electric gear again, the electric gear is rotated through remote control in the opposite direction, one end of the pin penetrates out of the hole in the end part of the body, and a gap is formed between the other end of the pin and the body and is separated from the component. Therefore, the intelligent rapid deconstruction device can automatically deconstruct the hook under the condition of no stress on a high place through remote control, simultaneously reduces the potential safety hazard of personnel during high-place operation, can save the use of a ladder stand and a safety catcher to a certain extent, and improves the working efficiency and the safety.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows the external structure of the intelligent fast deconstruction device of the present invention.
Fig. 2 shows the schematic internal structure of the intelligent fast deconstruction device of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings in combination with embodiments.
Referring to fig. 1 and fig. 2, fig. 1 shows an external structural schematic diagram of an intelligent rapid deconstruction device of the present invention, and fig. 2 shows an internal structural schematic diagram of the intelligent rapid deconstruction device of the present invention.
The invention aims to provide an intelligent rapid deconstruction device and a deconstruction method thereof, wherein the deconstruction device mainly comprises a tower crane hook, an electric gear capable of rotating remotely, a compression spring and a safety buckle in failure. By using the intelligent rapid deconstruction device, the hook can be automatically deconstructed under the condition of no stress on a high place through remote control, the potential safety hazard of personnel during high-place operation is reduced, the use of a ladder stand and a safety catch can be saved to a certain extent, and the working efficiency and the safety are improved.
As shown in fig. 1 and 2, the intelligent fast deconstruction device according to the embodiment of the invention comprises a body 1, a pin 2 and a hook 3, wherein the hook 3 is arranged on the body 1, at least one end of the pin 2 movably penetrates through a hole 15 at one end of the body 1, and the middle of the pin 2 is suspended for hanging a hoisting member (not shown in the figures). The bottoms of the two ends of the pin 2 are arranged on a compression spring 5 in the body 1, the top of the pin 2 is provided with a rack 21, an electric gear 4 is arranged in the body 1 and above the pin 2, the two ends of the pin 2 are pressed on the compression spring 5 and dislocated with the hole 15 under the action of the gravity of a hoisting component, and the hoisting is carried out in real time; the pin 2 is in mesh transmission with the electric gear 4 through the rack 21 when not under the action of gravity of the hoisting member, the end part of the pin is aligned to the hole 15, and at the moment, one end of the pin 2 can be pushed out of the body 1 from the hole 15 by rotating the electric gear 4, so that a gap is formed between the other end of the pin 2 and the body 1, and the pin can be separated from the hoisting member through the gap to complete deconstruction. Wherein, electric gear 4 rotationally sets up on body 1 through a gear shaft 41, and electric gear 4 or gear shaft 41 and remote control unit signal connection can control electric gear 4 and rotate around gear shaft 41 through remote control unit, operate remote control unit on ground and can control electric gear 4 and move.
Preferably, a safety buckle 6 is arranged between the bottom of at least one end of the pin 2 and the body 1, and the safety buckle 6 locks the horizontal movement of the pin 2 when the pin 2 is under the action of the gravity of the hoisting member, so that the pin 2 is prevented from moving to cause danger due to collision in the hoisting process. In this embodiment, the safety catch 6 includes a slot formed at the bottom of at least one end of the pin 2 and a wedge fixed in the body 1 and located below the slot. The length of the wedge is not greater than the length of the compression spring 5 when uncompressed.
Preferably, the body 1 comprises a front plate 11, a rear plate 12, two end plates 13 connected to both ends of the front plate 11 and the rear plate 12, and two bottom plates 14 connected between the front plate 11 and the rear plate 12 and located at the bottom positions of both ends of the stud 2. The hole 15 is arranged on at least one end plate 13, the circle center of the hole 15 and the axis of the pin 2 when the hole is not under the action of the gravity of the hoisting component are on the same horizontal line, and the aperture of the hole 15 is matched with the outer diameter of the pin 2. When the device is adopted to hang the hoisting component, the pin 2 sinks, and cannot be aligned through the hole at the end part of the body, namely, the pin cannot penetrate out of the body 1 from the hole, so that double insurance is formed.
Preferably, the hook 3 can be fixedly connected to the tops of the front plate 11 and the rear plate 12 through a bolt assembly 31, the tops of the front plate 11 and the rear plate 12 are correspondingly provided with bolt holes for the bolts of the bolt assembly 31 to penetrate through, and the ends of the bolts are fixed by nuts. The hook 3 can be used as a tower crane hook and connected with a lifter so as to utilize the lifter to drive the device hung with a lifting pendant to implement high-altitude lifting operation. The hoister can adopt hoisting equipment such as a tower crane and a truck crane.
Preferably, the length of the pin 2 is not greater than the distance between the end plates 13 at the two ends of the body 1, so that as shown in fig. 2, when the pin 2 is used for hanging the hanging element, the pin 2 can be completely accommodated inside the body 1, the pin 2 acts on the hanging element under the action of gravity, the end parts at the two ends of the pin respectively press on the two compression springs 5 on the two bottom plates 14 at the two ends of the body, and the rack 21 at the top of the pin 2 is separated from the electric gear 4 above the pin, thereby preventing danger caused by collision with a remote control device in the hanging process. Further, when the compression spring 5 shortens under the oppression of the pin 2, the draw-in groove at the end of the pin 2 is downwards embedded into the inserting wedge on the bottom plate 14 below along the trend, the safety buckle finishes locking, and the pin 2 can be further prevented from moving left and right in the hoisting process.
Preferably, the front plate 11 and the back plate 12 of the body 1 tightly abut against two sides of the pin 2, so that the forward and backward movement of the pin 2 can be limited to a certain extent, and the pin 2 is prevented from being too loose in the body and losing effectiveness.
The following further describes how to use the intelligent fast deconstruction device in the above embodiment of the present invention to perform the intelligent fast deconstruction method.
Firstly, hanging a hoisting member at the middle part of a pin 2, and pressing two ends of the pin 2 on compression springs 5 at two ends of a body 1 under the action of the gravity of the hoisting member so as to enable the end part of the pin 2 and a hole 15 at the end part of the body to be staggered;
then, the body 1 hung with the hoisting component is connected to a hoisting machine (not shown in the figure) by using the hook 3, and the hoisting component is hoisted to the position by using the hoisting machine;
then, the compression of the hoisting component on the pin 2 is released, the compression spring 5 is reset upwards, the pin 2 is pushed upwards to the top of the pin 2, the rack 21 is meshed with the electric gear 4, and the end part of the pin 2 is aligned to the hole 15 at the end part of the body 1;
finally, the electric driving electric gear 4 rotates to drive the first end of the pin 2 to move towards the hole 15, and the second end of the pin 2 is separated from the bottom of the body 1 and suspended, so that the second end of the suspended pin 2 is separated from the hoisting component, and deconstruction is completed.
By adopting the intelligent rapid deconstruction device, the electric gear and the rack on the pin are rotated through remote control during hooking to be mutually transmitted, the pin is slowly pushed into the device body until two ends of the pin are completely placed on the compression springs at the two ends of the body, the pin moves downwards to be separated from the electric gear under the action of the gravity of a hoisting member, and the end part is dislocated with the hole at the end part of the body, so that the pin cannot penetrate out of the hole due to misoperation of the electric gear in the hoisting process, and the double-insurance effect is achieved. When the component is hoisted in place, the pin is not under the action of the gravity of the component, at the moment, under the action of the reset force of the compression spring, the pin is jacked upwards to the rack at the top to be meshed with the electric gear again, the electric gear is rotated through remote control in the opposite direction, one end of the pin penetrates out of the hole at the end part of the body, and a gap is formed between the other end of the pin and the body and is separated from the component. Therefore, the intelligent rapid deconstruction device can automatically deconstruct the hook under the condition of no stress on a high place through remote control, simultaneously reduces the potential safety hazard of personnel during high-place operation, can save the use of a ladder stand and a safety catcher to a certain extent, and improves the working efficiency and the safety.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention, and are all included in the scope of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (8)
1. The utility model provides an intelligent device of deconstructing fast which characterized in that: the lifting device comprises a body, a pin and a hook, wherein the hook is arranged on the body, at least one end of the pin movably penetrates through a hole at one end of the body, and the middle part of the pin is suspended and used for hanging a lifting member; the bottoms of the two ends of the pin are arranged on a compression spring in the body, a rack is arranged at the top of the pin, an electric gear is arranged in the body and above the pin, the two ends of the pin are pressed on the compression spring and dislocated with the hole when the pin is under the action of the gravity of the hoisting member, and the pin is in meshing transmission with the electric gear through the rack and the end part of the pin is aligned with the hole when the pin is not under the action of the gravity of the hoisting member; the body comprises a front plate, a rear plate, two end plates connected to two ends of the front plate and the rear plate, and two bottom plates connected between the front plate and the rear plate and located at the bottoms of two ends of the pin; the hole is arranged on at least one end plate, the circle center of the hole and the axis of the pin when the hole is not under the action of gravity of the hoisting member are on the same horizontal line, and the aperture of the hole is matched with the outer diameter of the pin.
2. The intelligent rapid deconstruction device of claim 1, wherein: and a safety buckle is arranged between the bottom of at least one end of the pin and the body, and locks the horizontal movement of the pin when the pin is under the action of the gravity of the hoisting component.
3. The intelligent rapid deconstruction device of claim 2, wherein: the safety buckle comprises a clamping groove formed in the bottom of at least one end of the pin and an inserting wedge fixed in the body and positioned below the clamping groove.
4. The intelligent rapid deconstruction device of claim 3, wherein: the length of the wedge is not greater than the length of the compression spring when not compressed.
5. The intelligent rapid deconstruction device of claim 1, wherein: the hook is fixedly connected to the top of the front plate and the top of the rear plate through a bolt assembly.
6. The intelligent rapid deconstruction device of claim 1, wherein: the length of the pin is not more than the distance between the two end plates.
7. The intelligent rapid deconstruction device of claim 1, wherein: the compression springs are fixed on the two bottom plates in a one-to-one correspondence mode.
8. An intelligent rapid deconstruction method for an intelligent rapid deconstruction device according to any one of claims 1-7, comprising:
hanging a hoisting member at the middle part of the pin, wherein two ends of the pin are pressed on compression springs at two ends of the body under the action of the gravity of the hoisting member, so that the end parts of the pin and the holes at the end parts of the body are staggered;
the body hung with the hoisting component is connected to a hoisting machine by the hook, and the hoisting component is hoisted to the position by the hoisting machine;
releasing the compression of the hoisting component on the pin, resetting the compression spring, pushing the pin upwards to the rack at the top of the pin to be meshed with the electric gear, and aligning the end of the pin with the hole at the end of the body;
the electric gear is driven to rotate to drive the first end of the pin to move towards the hole, and the second end of the pin is separated from the body and suspended, so that the suspended second end of the pin is separated from the hoisting component, and deconstruction is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011176611.3A CN112173944B (en) | 2020-10-29 | 2020-10-29 | Intelligent rapid deconstruction device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011176611.3A CN112173944B (en) | 2020-10-29 | 2020-10-29 | Intelligent rapid deconstruction device and method |
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| CN112173944A CN112173944A (en) | 2021-01-05 |
| CN112173944B true CN112173944B (en) | 2022-08-30 |
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| CN113860132B (en) * | 2021-08-25 | 2024-05-14 | 山东水总有限公司 | Sectional hoisting equipment and hoisting method for large gate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH648812A5 (en) * | 1979-10-29 | 1985-04-15 | Josef Maier | Device for suspending at least one formwork panel on a lifting appliance |
| CN104843577A (en) * | 2015-03-18 | 2015-08-19 | 北汽福田汽车股份有限公司 | Suspender and hoisting apparatus having suspender |
| CN204624961U (en) * | 2015-04-21 | 2015-09-09 | 大元建业集团股份有限公司 | The automatically-unhooked hanger of upper air installing steel column beam |
| CN209778044U (en) * | 2019-05-13 | 2019-12-13 | 中交一航局第二工程有限公司 | Automatic hooking and unhooking lifting appliance |
| CN210735983U (en) * | 2019-09-05 | 2020-06-12 | 河南郑通钢结构有限公司 | Automatic unhooking device for hoisting box-type column |
| CN211141296U (en) * | 2019-11-28 | 2020-07-31 | 中车株洲电力机车研究所有限公司 | Remote control detacher |
| CN111547619A (en) * | 2019-03-24 | 2020-08-18 | 荆门市亿美工业设计有限公司 | Hoisting method of antirust copper foil roll lifting appliance |
-
2020
- 2020-10-29 CN CN202011176611.3A patent/CN112173944B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH648812A5 (en) * | 1979-10-29 | 1985-04-15 | Josef Maier | Device for suspending at least one formwork panel on a lifting appliance |
| CN104843577A (en) * | 2015-03-18 | 2015-08-19 | 北汽福田汽车股份有限公司 | Suspender and hoisting apparatus having suspender |
| CN204624961U (en) * | 2015-04-21 | 2015-09-09 | 大元建业集团股份有限公司 | The automatically-unhooked hanger of upper air installing steel column beam |
| CN111547619A (en) * | 2019-03-24 | 2020-08-18 | 荆门市亿美工业设计有限公司 | Hoisting method of antirust copper foil roll lifting appliance |
| CN209778044U (en) * | 2019-05-13 | 2019-12-13 | 中交一航局第二工程有限公司 | Automatic hooking and unhooking lifting appliance |
| CN210735983U (en) * | 2019-09-05 | 2020-06-12 | 河南郑通钢结构有限公司 | Automatic unhooking device for hoisting box-type column |
| CN211141296U (en) * | 2019-11-28 | 2020-07-31 | 中车株洲电力机车研究所有限公司 | Remote control detacher |
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