CN212832388U - Telescopic device for quick unhooking and hooking of lifting appliance - Google Patents
Telescopic device for quick unhooking and hooking of lifting appliance Download PDFInfo
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- CN212832388U CN212832388U CN202021833784.3U CN202021833784U CN212832388U CN 212832388 U CN212832388 U CN 212832388U CN 202021833784 U CN202021833784 U CN 202021833784U CN 212832388 U CN212832388 U CN 212832388U
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- pulling plate
- plate mechanism
- arm pulling
- telescopic
- straight arm
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Abstract
The utility model provides a quick unhook of hoist, the telescoping device of couple, include: the telescopic arm pulling plate mechanism comprises a lifting beam, a straight arm pulling plate mechanism and a telescopic arm pulling plate mechanism, wherein the bottom ends of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism are connected with the lifting beam in a rotating mode, the top ends of the telescopic arm pulling plate mechanism and the straight arm pulling plate mechanism are provided with an upper pin shaft used for being hung on a hook in a Chinese character 'shan' shape, the bottom ends of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism are provided with limiting parts used for limiting opposite turning angles of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism, and a limiting block used for limiting the telescopic arm pulling plate mechanism to turn angles towards the direction of the straight arm pulling plate mechanism away from the lifting beam. When the scheme is operated, quick hooking and unhooking can be realized only by hanging or releasing the telescopic arm pulling plate mechanism, the operation is quick, the maintenance is convenient, the labor intensity of operators is reduced, and meanwhile, the potential safety hazard is effectively avoided.
Description
Technical Field
The utility model belongs to the lifting device field especially relates to a telescoping device of quick unhook, couple of hoist.
Background
At present, most of the plate pulling mechanisms of the lifting appliance are formed by combining two straight arm plate pulling mechanisms. When the traveling crane drives the lower connecting rod at the lower end of the straight arm pull plate mechanism hung on the Chinese character ' shan ' hook to be contacted with the lifting beam, a traveling crane operator needs to descend the Chinese character ' shan ' hook to hang the upper pin shaft on the two straight arm pull plate mechanisms, and the traveling crane operator can operate the Chinese character ' shan hook to slowly ascend to finish the hook. When unhooking, the chevron hook descends to being less than the round pin axle on the two straight arm-drag mechanisms, driving operation personnel operation dolly removes and makes a straight arm-drag mechanism rotatory keep away from another straight arm-drag mechanism, because chevron hook atress has inclination this moment, often can hang its direct arm-drag mechanism of keeping away from one side for the straight arm-drag mechanism that hangs on the chevron hook can't normally rotate and keep away from, need operating personnel to make a round trip to rock, repeated attempt makes the straight arm-drag mechanism that hangs on the chevron hook normally rotate and keep away from another straight arm-drag mechanism.
It can be seen from the above that the plate pulling mechanism of the lifting appliance formed by combining the two straight arm plate pulling mechanisms is difficult to hook and unhook, the preparation and ending time of the lifting operation is prolonged, and the working efficiency is influenced. The operator repeatedly operates the cam hook to go up and down and shake back and forth, which may cause the lifting appliance body to move, and causes impact injury to peripheral equipment and personnel of the lifting appliance, so that great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings in the prior art, an object of the present invention is to provide a quick unhooking and hooking telescopic device for a lifting device, which is used for solving the problems of hooking and unhooking difficulties, etc. in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a telescopic device for quick unhooking and hooking of a lifting device, including: the telescopic arm pulling plate mechanism comprises a lifting beam, a straight arm pulling plate mechanism and a telescopic arm pulling plate mechanism, wherein the bottom ends of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism are connected with the lifting beam in a rotating mode, the top ends of the telescopic arm pulling plate mechanism and the straight arm pulling plate mechanism are provided with an upper pin shaft used for being hung on a hook in a Chinese character 'shan' shape, the bottom ends of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism are provided with limiting parts used for limiting opposite turning angles of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism, and a limiting block used for limiting the telescopic arm pulling plate mechanism to turn angles towards the direction of the straight arm pulling plate mechanism away from the lifting beam.
Further, when the telescopic arm plate pulling mechanism extends to the maximum position, the length of the telescopic arm plate pulling mechanism is equal to that of the straight arm plate pulling mechanism.
Furthermore, flexible arm-tie mechanism is including setting up the first round pin axle in its bottom, realizes the rotation connection between flexible arm-tie mechanism and the lifting beam through first round pin axle down.
Further, the straight arm pulling plate mechanism comprises a second lower pin shaft arranged at the bottom end of the straight arm pulling plate mechanism, and the straight arm pulling plate mechanism is rotatably connected with the lifting beam through the second lower pin shaft.
Furthermore, the telescopic arm pulling plate mechanism further comprises a lower pulling plate and an upper pulling plate, a sliding sleeve is fixed on the lower pulling plate, and the upper pulling plate is located in the sliding sleeve and is in sliding fit with the sliding sleeve.
Further, the upper pin shaft comprises a first upper pin shaft and a second upper pin shaft, the straight arm pulling plate mechanism comprises a straight arm pulling plate, the first upper pin shaft is arranged at the top end of the upper pulling plate, and the second upper pin shaft is fixed at the top end of the straight arm pulling plate.
Furthermore, the limiting component comprises a first lower connecting rod and a second lower connecting rod, the number of the lower pulling plates and the number of the straight arm pulling plates are two, the first connecting rod is arranged between the lower pulling plates on the lower pin shaft, and the second connecting rod is arranged between the straight arm pulling plates on the lower pin shaft.
Furthermore, a first upper connecting rod is arranged at the top end of the upper pulling plate, and a second upper connecting rod is arranged between the top ends of the straight arm pulling plates.
Further, when the hanger is quickly unhooked and the telescopic device of the hook is arranged in front of or behind the hook of the E-shaped hook, the included angle a between the telescopic arm pulling plate mechanism and the lifting beam is 75-80 degrees.
Furthermore, in the process of extending or retracting the telescopic arm pulling plate mechanism, the relative position between the straight arm pulling plate mechanism and the lifting beam is unchanged.
As above, the utility model discloses a quick unhook of hoist, the telescoping device of couple has following beneficial effect:
because the quick unhook of hoist in this scheme, the telescoping device of couple comprises a flexible arm-tie mechanism and straight arm-tie mechanism, and is compared by two straight arm-tie mechanism constitutions with current hoist arm-tie mechanism, only needs to hang or throw off flexible arm-tie mechanism and just can realize quick couple, unhook during this scheme operation, and the operation is swift, and it is convenient to maintain, reduces operating personnel's intensity of labour, has effectively avoided the potential safety hazard simultaneously.
Drawings
Fig. 1 is a schematic view of the state that the plate pulling mechanism of the telescopic arm of the telescopic device for quickly unhooking and hooking the hanger of the embodiment of the present invention extends to the maximum position and is hung on the hook in the shape of a Chinese character 'shan'.
Fig. 2 is a side view of the telescopic arm pulling plate mechanism according to the embodiment of the present invention, when it is retracted to the lowest position.
Fig. 3 is a side view of the straight arm pulling plate mechanism in the embodiment of the present invention.
Fig. 4 is a schematic view of the state of the telescopic arm pulling plate mechanism of the telescopic device for quick unhooking and hooking of the spreader in the embodiment of the present invention when the telescopic arm pulling plate mechanism is retracted to the lowest position.
Fig. 5 is a schematic view of the state of the telescopic device for quick unhooking and hooking of the hanger before or after the hook is unhooked.
Detailed Description
Reference numerals in the drawings of the specification include: the lifting device comprises a lifting beam 1, a herringbone hook 2, a limiting block 3, a telescopic arm pulling plate mechanism 4, a first upper pin shaft 401, a first upper connecting rod 402, an upper pulling plate 403, a lower pulling plate 404, a sliding sleeve 405, a strip-shaped hole 406, a sliding shaft 407, a first lower connecting rod 408, a first lower pin shaft 409, a clamping plate 410, a straight arm pulling plate mechanism 5, a second upper pin shaft 501, a second lower pin shaft 502, a straight arm pulling plate 503, a second upper connecting rod 504 and a second lower connecting rod 505.
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Examples
As shown in fig. 1 to 5, the present embodiment provides a telescopic device for quick unhooking and hooking of a spreader, including: lifting beam 1 and install flexible arm-tie mechanism 4, straight arm-tie mechanism 5 and stopper 3 on lifting beam 1.
The telescopic arm pulling plate mechanism 4 comprises: a first upper pin 401, a first upper connecting rod 402, an upper pull plate 403, a lower pull plate 404, a sliding sleeve 405, a first lower pin 409 and the like. The upper pulling plate 403 and the lower pulling plate 404 are both two, the two lower pulling plates 404 are arranged on two sides of the lifting beam 1, the bottom ends of the lower pulling plates 404 and the top end of the upper pulling plate 403 are both semicircular, the bottom ends of the two lower pulling plates 404 and the lifting beam 1 are rotatably connected through a first lower pin shaft 409, and a first lower connecting rod 408 is fixed between the two lower pulling plates 404 on the first lower pin shaft 409. The sliding sleeve 405 is fixedly connected with the top end of the lower pulling plate 404, and the bottom end of the upper pulling plate 403 is positioned in the sliding sleeve 405 and is slidably connected with the sliding sleeve 405. The first upper pin 401 is fixed between two upper pulling plates 403, and the first upper connecting rod 402 is fixed between the upper pulling plates 403 above the first upper pin 401. In specific implementation, a strip-shaped hole 406 is formed in the upper pulling plate 403 along the upper pulling plate 403, a sliding shaft 407 matched with the strip-shaped hole 406 is arranged in the sliding sleeve 405, and the sliding shaft 407 can move along the strip-shaped hole 406, so that the sliding connection between the upper pulling plate 403 and the sliding sleeve 405 is realized.
The straight arm pulling plate mechanism 5 includes a second upper pin 501, a second lower pin 502, a straight arm pulling plate 503, a second upper connecting rod 504 and a second lower connecting rod 505. The number of the straight arm pulling plates 503 is two, the two straight arm pulling plates 503 are located between the lifting beams 1, and the bottom ends of the two straight arm pulling plates 503 are rotatably connected with the lifting beams 1 through second lower pin shafts 502. The second upper pin 501 is fixed on the top ends of the two straight arm pulling plates 503, the second upper connecting rod 504 is fixed between the two straight arm pulling plates 503 on the second upper pin 501, and the second lower connecting rod 505 is fixed between the two straight arm pulling plates 503 on the second lower pin 502. In specific implementation, the fixing between the first upper pin 401 and the upper pull plate 403, the fixing between the first lower pin 409 and the lower pull plate 404, the fixing between the second upper pin 501 and the straight arm pull plate 503, and the fixing between the second lower pin 502 and the straight arm pull plate 503 all adopt the following modes:
clamping grooves are formed in two ends of the first upper pin shaft 401, the second upper pin shaft 501, the first lower pin shaft 409 and the second lower pin shaft 502, rectangular clamping plates 410 are fixed on the lower pull plate 404, the upper pull plate 403 and the straight arm pull plate 503 through bolts, and one side edge of each clamping plate 410 is located in each clamping groove, so that the first upper pin shaft 401, the second upper pin shaft 501, the first lower pin shaft 409 and the second lower pin shaft 502 are fixed.
The number of the limiting blocks 3 is two, the two limiting blocks 3 are fixed on the lifting beam 1, one limiting block 3 is positioned on the upper surface of the lifting beam 1, far away from one side of the second lower pin shaft 502, of the first lower pin shaft 409, and the other limiting block 3 is positioned on the upper surface of the lifting beam 1, far away from one side of the first lower pin shaft 409, of the second lower pin shaft 502.
In addition, circular shape recess has all been seted up at first round pin axle 401 and second round pin axle 501 middle part to hang on the chevron hook 2, make first round pin axle 401 and second go up more laminating when round pin axle 501 and the contact of chevron hook 2, make during the couple more reliable, it is more steady to lift by crane. The first upper connecting rod 402 is used for reinforcing the connection between the upper pulling plates 403, and the second upper connecting rod 504 is used for reinforcing the connection between the top ends of the straight arm pulling plates 503.
In specific implementation, as shown in fig. 1, when the lifting appliance is quickly unhooked and the telescopic arm pull plate mechanism 4 of the hook telescopic device extends to the maximum position and is hung on the chevron hook 2, the telescopic arm pull plate mechanism 4 and the straight arm pull plate mechanism 5 are close to each other, the first upper pin 401 and the second upper pin 501 at the top end are hung on the chevron hook 2, and the lengths of the telescopic arm pull plate mechanism 4 and the straight arm pull plate mechanism 5 are equal at this time. The first lower connecting rod 408 and the second lower connecting rod 505 are abutted against the lifting beam 1, and the arrangement of the first lower connecting rod 408 and the second lower connecting rod 505 limits the rotation angle of the telescopic arm pulling plate mechanism 4 and the straight arm pulling plate mechanism 5 at the moment, so that the limiting effect is achieved.
As shown in fig. 4, when the hanger is quickly unhooked and the telescopic arm pulling plate mechanism 4 of the telescopic device of the hook is contracted to the lowest position and hung on the herringbone hook 2, the top end of the straight arm pulling plate mechanism 5 is unhooked, the straight arm pulling plate mechanism 5 and the telescopic arm pulling plate mechanism 4 are mutually closed, the first lower connecting rod 408 and the second lower connecting rod 505 are abutted against the lifting beam 1, the turning angle of the telescopic arm pulling plate mechanism 4 is limited by the first connecting rod, and the turning angle of the straight arm pulling plate mechanism 5 is limited by the second lower connecting rod 505.
As shown in fig. 5, when the hanger is quickly unhooked and the telescopic device of the hook is before or after the hook 2 of the chevron hook is unhooked, the pulling plate mechanism 4 of the telescopic arm is in a state of being retracted to the lowest position, the distance D1 between the centers of the two hooks of the chevron hook 2 is smaller than the distance D2 between the centers of the first lower pin 409 and the second lower pin 502, and the distance D3 between the outer edges of the upper hook of the chevron hook 2 is smaller than the distance D4 between the first upper pin 401 and the second upper pin 501. At this moment, the telescopic arm pulling plate mechanism 4 rotates towards the direction away from the straight arm pulling plate mechanism 5, the straight arm pulling plate mechanism 5 overturns towards the direction of the telescopic arm pulling plate mechanism 4, the second lower connecting rod 505 abuts against the lifting beam 1, the first lower connecting rod 408 abuts against the limiting block 3, and the limiting block 3 and the first lower connecting rod 408 are matched to limit the outward overturning angle of the telescopic arm pulling plate mechanism 4. When the first lower connecting rod 408 abuts against the limiting block 3 on the left side thereof, the included angle a between the telescopic arm pulling plate mechanism 4 and the lifting beam 1 is preferably 75-80 degrees so as to realize quick hooking.
As can be seen from the above, the relative position between the straight arm pulling plate mechanism 5 and the lifting beam 1 in the present embodiment is always unchanged, that is, the straight arm pulling plate mechanism 5 is always in the waiting position, and there is no need to perform any operation on the straight arm pulling plate mechanism 5.
When the hook and the unhook in the crane lifting operation are used, only the E-shaped hook 2 is needed to be hung or separated from the telescopic arm pull plate mechanism 4, so that the telescopic arm pull plate mechanism 4 can realize quick hook when extending to the maximum length, the E-shaped hook 2 can be quickly unhook when the telescopic arm pull plate mechanism 4 is contracted to the minimum position, and the straight arm pull plate mechanism 5 cannot interfere with the unhook and the hooking process.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a telescoping device of quick unhook, couple of hoist which characterized in that includes: the telescopic arm pulling plate mechanism comprises a lifting beam, a straight arm pulling plate mechanism and a telescopic arm pulling plate mechanism, wherein the bottom ends of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism are connected with the lifting beam in a rotating mode, the top ends of the telescopic arm pulling plate mechanism and the straight arm pulling plate mechanism are provided with an upper pin shaft used for being hung on a hook in a Chinese character 'shan' shape, the bottom ends of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism are provided with limiting parts used for limiting opposite turning angles of the straight arm pulling plate mechanism and the telescopic arm pulling plate mechanism, and a limiting block used for limiting the telescopic arm pulling plate mechanism to turn angles towards the direction of the straight arm pulling plate mechanism away from the lifting beam.
2. The telescopic device for quick unhooking and hooking of a spreader according to claim 1, wherein when the telescopic arm pulling plate mechanism is extended to the maximum position, the length of the telescopic arm pulling plate mechanism is equal to that of the straight arm pulling plate mechanism.
3. The telescopic device for quick unhooking and hooking of a spreader as claimed in claim 1, wherein the telescopic arm pulling plate mechanism comprises a first lower pin shaft arranged at the bottom end of the telescopic arm pulling plate mechanism, and the rotary connection between the telescopic arm pulling plate mechanism and the lifting beam is realized through the first lower pin shaft.
4. The telescopic device for quick unhooking and hooking of a spreader as claimed in claim 3, wherein the straight arm pulling plate mechanism comprises a second lower pin shaft arranged at the bottom end thereof, and the rotary connection between the straight arm pulling plate mechanism and the lifting beam is realized through the second lower pin shaft.
5. The telescopic device for quick unhooking and hooking of a spreader as claimed in claim 4, wherein the pulling plate mechanism of the telescopic arm further comprises a lower pulling plate and an upper pulling plate, the lower pulling plate is fixed with a sliding sleeve, and the upper pulling plate is positioned in the sliding sleeve and is in sliding fit with the sliding sleeve.
6. The telescopic device for quick unhooking and hooking of the spreader as claimed in claim 5, wherein the upper pin comprises a first upper pin and a second upper pin, the straight arm pulling plate mechanism comprises a straight arm pulling plate, the first upper pin is arranged at the top end of the upper pulling plate, and the second upper pin is fixed at the top end of the straight arm pulling plate.
7. The telescopic device for quick unhooking and hooking of the lifting appliance according to claim 6, wherein the limiting component comprises a first lower connecting rod and a second lower connecting rod, the two lower pulling plates and the two straight arm pulling plates are provided, the first connecting rod is arranged between the lower pulling plates above the lower pin shaft, and the second connecting rod is arranged between the straight arm pulling plates above the lower pin shaft.
8. The telescopic device for quick unhooking and hooking of a spreader as claimed in claim 7, wherein a first upper connecting rod is arranged at the top end of the upper pulling plate, and a second upper connecting rod is arranged between the top ends of the straight arm pulling plates.
9. The telescopic device for quick unhooking and hooking of the lifting appliance according to claim 1, wherein when the telescopic device for quick unhooking and hooking of the lifting appliance is arranged in front of or behind the hook of the Chinese character 'shan' shaped hook, an included angle a between the telescopic arm pulling plate mechanism and the lifting beam is 75-80 degrees.
10. The telescopic device for quick unhooking and hooking of a spreader according to any one of claims 1 to 9, wherein the relative position between the straight arm pulling plate mechanism and the lifting beam is unchanged during the extension or retraction of the telescopic arm pulling plate mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833784.3U CN212832388U (en) | 2020-08-28 | 2020-08-28 | Telescopic device for quick unhooking and hooking of lifting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833784.3U CN212832388U (en) | 2020-08-28 | 2020-08-28 | Telescopic device for quick unhooking and hooking of lifting appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212832388U true CN212832388U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021833784.3U Active CN212832388U (en) | 2020-08-28 | 2020-08-28 | Telescopic device for quick unhooking and hooking of lifting appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212832388U (en) |
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2020
- 2020-08-28 CN CN202021833784.3U patent/CN212832388U/en active Active
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