CN110984840A - Anti-falling mechanism for tower crane hanging shoes and tower crane - Google Patents
Anti-falling mechanism for tower crane hanging shoes and tower crane Download PDFInfo
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- CN110984840A CN110984840A CN201911233969.2A CN201911233969A CN110984840A CN 110984840 A CN110984840 A CN 110984840A CN 201911233969 A CN201911233969 A CN 201911233969A CN 110984840 A CN110984840 A CN 110984840A
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- 230000008859 change Effects 0.000 claims abstract description 4
- 210000000883 ear external Anatomy 0.000 claims description 26
- 210000003027 ear inner Anatomy 0.000 claims description 22
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 5
- 230000002265 prevention Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/082—Connections between rungs or treads and longitudinal members
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Abstract
The invention relates to the field of hoisting equipment, and discloses an anti-falling mechanism for a tower crane hanging shoe and a tower crane. The anti-disengaging mechanism includes the hanging shoe and marks time, and the hanging shoe is hung and is located and mark time, the anti-disengaging mechanism still includes the connecting rod and connects in the locating part of the one end of connecting rod, and the connecting rod rotationally connects in the hanging shoe, and the locating part sets up to can change between the position that breaks away from in order to prevent the hanging shoe to break away from the joint position of marking time and break away from the bottom of marking time in order to allow the hanging shoe to break away from the position of breaking away from of marking time in the. According to the anti-drop mechanism, through the technical scheme, on one hand, holes do not need to be formed in the steps, the complexity and the processing cost of the step processing technology can be reduced, and the stress condition of the steps is improved; on the other hand can realize locking and releasing to the boots through rotatory connecting rod when the operation, convenient operation also can rotate the locating part to the position that breaks away from easily when the locating part is in the stress state, labour saving and time saving.
Description
Technical Field
The invention relates to the field of hoisting equipment, in particular to an anti-falling mechanism for a tower crane hanging shoe and a tower crane comprising the same.
Background
The tower crane is the most common hoisting equipment on the construction site, and is also named as a tower crane. In the use process of the tower crane, the jacking safety is the most main ring of the safety of the tower crane, and before the jacking operation is started, the step-changing hanging shoes on the jacking cross beam need to be hung in the working positions of the standard steps of the tower crane, so that reliable support is provided for the jacking operation. Moreover, during the jacking operation, the hanging shoes need to be limited so as to avoid the hanging shoes from separating from the step, thereby influencing the jacking safety.
The anti-falling bolt is utilized to pass through the step and the hanging boot to prevent the hanging boot from separating from the step in the existing tower crane, and the following problems exist in the mode: holes need to be formed in the hanging boot and the step respectively, the anti-falling bolt needs to penetrate through the holes in the hanging boot and the holes in the step simultaneously when inserted, and the anti-falling bolt is difficult to pull out when in a stressed state, so that the assembly and disassembly are time-consuming and labor-consuming, and the operation is inconvenient; the number of steps of a conventional tower crane is as many as tens to hundreds, and the holes are formed in the steps, so that the processing technology becomes complicated, the processing cost is increased, the bearing capacity of the steps is weakened, the influence of the holes on the bearing capacity needs to be offset by increasing the size of the steps, and the material cost is increased.
Disclosure of Invention
The invention aims to provide an anti-falling mechanism for a tower crane hanging shoe and a tower crane comprising the anti-falling mechanism, so as to solve the problems.
In order to achieve the above object, the invention provides an anti-disengaging mechanism for a tower crane hanging shoe, which includes a hanging shoe and a step, wherein the hanging shoe is hung on the step, the anti-disengaging mechanism includes a connecting rod and a limiting member connected to one end of the connecting rod, the connecting rod is rotatably connected to the hanging shoe, and the limiting member is configured to be capable of being switched between a clamping position where the connecting rod is clamped to the bottom end of the step to prevent the hanging shoe from being disengaged from the step and a disengaging position where the connecting rod is disengaged from the bottom end of the step to allow the hanging shoe to be disengaged from the step by rotation of the connecting rod.
Optionally, the anti-drop mechanism comprises a locking structure configured to: when the limiting piece is in the clamping position, the locking structure can releasably lock the connecting rod to prevent the connecting rod from rotating; and/or
Hang boots include the link plate and follow the inside ear board and the external ear board of one side outside extension of link plate, inside ear board with the external ear board sets up at interval each other, the link plate seted up be used for with mark time hang the dress hole of establishing, hang the dress hole site in inside ear board with just set up to right between the external ear board the transformation formation of locating part is dodged.
Optionally, the locking structure comprises a locking pin and a locking clip which are matched, the locking pin is movably connected with the connecting rod, the locking clip is arranged on the hanging boot, and the locking pin is arranged to be capable of being converted between a locking state of being clamped with the locking clip to prevent the connecting rod from rotating and an unlocking state of being separated from the locking clip to allow the connecting rod to rotate; and/or
The anti-disengaging mechanism is arranged between the inner ear plate and the outer ear plate, the connecting rod is rotatably connected with the inner ear plate and/or the outer ear plate, and the rotation axis of the connecting rod is parallel to the spacing direction of the inner ear plate and the outer ear plate.
Optionally, the anti-dropping mechanism comprises a handle for driving the connecting rod to rotate, and the handle is connected to the other end of the connecting rod; and/or
The anti-disengaging mechanism comprises two connecting rods, wherein the connecting rods are arranged at intervals in the interval direction of the inner ear plate and the interval direction of the outer ear plate, and the connecting rods are rotatably connected with the inner ear plate and the outer ear plate.
Optionally, the stopper and the handle are both rod-shaped members, and the stopper and the handle are connected between the two connecting rods at intervals.
Optionally, the extending directions of the limiting member and the handle are perpendicular to the extending direction of the connecting rod, and the limiting member is closer to the rotation axis of the connecting rod than the handle is to the extending direction of the connecting rod.
Optionally, one end of the lock pin is rotatably connected to the link, the rotation axis of the lock pin is parallel to the rotation axis of the link, the other end of the lock pin is formed with a hook, the latch is an L-shaped member extending from the inner lug plate or the outer lug plate in a direction perpendicular to the rotation axis of the lock pin and bent upward, and the lock pin can rotate between a locked state in which the hook is screwed into the latch and an unlocked state in which the hook is unscrewed from the latch.
Optionally, a mounting seat for mounting the lock pin is provided on the connecting rod, the one end of the lock pin is inserted into the mounting seat and can reciprocate relative to the mounting seat along the insertion direction, and a stop portion is provided at an end of the one end of the lock pin to prevent the lock pin from being separated from the mounting seat.
Optionally, a top groove for hanging the hanging boot is formed in the top end of the step; and/or
The bottom of marking time is provided with the confession the bottom recess that the locating part card was gone into the joint position, the locating part card is gone into the bottom recess.
The invention provides a tower crane, which comprises a standard joint, a jacking cross beam and the anti-falling mechanism, wherein the step is arranged on the standard joint, and the hanging shoes are connected to the jacking cross beam.
According to the anti-drop mechanism, through the technical scheme, on one hand, holes do not need to be formed in the steps, the complexity and the processing cost of the step processing technology can be reduced, and the stress condition of the steps is improved; on the other hand can realize locking and releasing to the boots through rotatory connecting rod when the operation, convenient operation also can rotate the locating part to the position that breaks away from easily when the locating part is in the stress state, labour saving and time saving.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a fragmentary schematic view of one embodiment of a tower crane of the present invention;
FIG. 2 is a partial schematic view of FIG. 1 with the retainer in the detent position and the latch in the locked position, eliminating the outer ear plate;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic view of the stopper of fig. 2 in a disengaged position.
Description of the reference numerals
11-hanging boots, 111-hanging boards, 112-inner ear plates, 113-outer ear plates, 114-hanging holes, 12-steps, 121-top end grooves, 122-bottom end grooves, 13-standard joints, 14-jacking cross beams, 15-rotating shafts, 21-connecting rods, 22-limiting parts, 23-handles, 24-pin shafts, 25-locking pins, 251-hook parts, 252-stopping parts, 26-locking clamps and 27-mounting seats.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, use of the terms "top" and "bottom" generally refer to the orientation as shown in the drawings.
In the tower crane, relevant parts for jacking operation comprise a standard joint 13 and a jacking cross beam 14, and before the jacking operation starts, the jacking cross beam 14 needs to be hung in the working position of a step 12 arranged on the standard joint 13 through a hanging shoe 11 connected to the jacking cross beam so as to provide reliable support for the jacking operation. As shown in fig. 1, usually, hanging shoes 11 are connected to both ends of the jacking cross beam 14 to hang on the steps 12 of two standard knots 13 parallel and spaced from each other. In order to prevent the hanging shoe 11 from being separated from the step 12 during the jacking operation and thus affecting the jacking safety, the invention provides an anti-drop mechanism for the hanging shoe of the tower crane, which comprises the hanging shoe 11 and the step 12, wherein the hanging shoe 11 is hung on the step 12, the anti-drop mechanism further comprises a connecting rod 21 and a limiting part 22 connected to one end of the connecting rod 21, the connecting rod 21 is rotatably connected to the hanging shoe 11, and the limiting part 22 is arranged to be capable of being switched between a clamping position (see fig. 2) clamped at the bottom end of the step 12 to prevent the hanging shoe 11 from being separated from the step 12 and a separating position (see fig. 4) separated from the bottom end of the step 12 to allow the hanging shoe 11 to be separated from.
When in use, after the hanging boot 11 is hung on the step 12, the limiting piece 22 can be clamped at the bottom end of the step 12 by rotating the connecting rod 21, and the hanging boot 11 is locked; when the hanging shoe 11 needs to be taken down, the limiting piece 22 can be separated from the bottom end of the step 12 by rotating the connecting rod 21, and the hanging shoe 11 is released.
Compared with the mode of adopting the anti-drop bolt in the prior art, the anti-drop mechanism does not need to open a hole in the step, can reduce the complexity and the processing cost of the step processing technology and improve the stress condition of the step; on the other hand, the locking and releasing of the shoe 11 can be realized by rotating the connecting rod 21 during operation, the operation is convenient, the limiting member 22 can be easily rotated to the disengaging position when the limiting member 22 is in a stressed state, and the time and labor are saved.
Wherein, the top end of the step 12 can be provided with a top end groove 121 for hanging the hanging boot 11, so that after the hanging boot 11 is hung on the step 12, the hanging boot 11 can be clamped in the top end groove 121 to be limited; the bottom end of the step 12 may be provided with a bottom end groove 122 into which the limiting member 22 is inserted, and at the engaging position, the limiting member 22 is inserted into the bottom end groove 122. Thus, the top end groove 121 limits the top of the hanging shoe 11, the bottom end groove 122 limits the bottom of the hanging shoe 11, and the limiting piece 22 limits the bottom of the hanging shoe 11, so that the anti-falling effect of the hanging shoe 11 can be further improved, and the hanging of the hanging shoe 11 is safer and more reliable.
In the present invention, the connecting rod 21 may have any suitable shape and may be configured to rotate in any suitable direction, as long as the limiting member 22 can be screwed into the bottom end groove 122 or unscrewed from the bottom end groove 122. The retaining member 22 may have any suitable shape and configuration so long as it can snap into the bottom recess 122.
In the present invention, as shown in fig. 1, the suspension boot 11 may include a hanging plate 111, and an inner ear plate 112 and an outer ear plate 113 extending outward from one side of the hanging plate 111, the inner ear plate 112 and the outer ear plate 113 are spaced apart from each other, the hanging plate 111 is provided with a hanging hole 114 for hanging the step 12, and the hanging hole 114 is located between the inner ear plate 112 and the outer ear plate 113 and is configured to avoid the change of the limiting member 22. That is, after the hanging shoe 11 is hung on the step 12, the structure of the hanging shoe 11 itself cannot influence the transition of the stopper 22 between the engagement position and the disengagement position.
In addition to the above-mentioned shoe structure, the anti-slip mechanism may be disposed between the inner ear plate 112 and the outer ear plate 113, the link rod 21 may be rotatably connected to the inner ear plate 112 and/or the outer ear plate 113, and the rotation axis of the link rod 21 is parallel to the direction of the gap between the inner ear plate 112 and the outer ear plate 113 (i.e., the transverse direction of the hanging plate 111 in fig. 1). In this case, as shown in fig. 2, a region that avoids the transition of the stopper 22 is formed at the lower portion of the mounting hole 114.
In order to facilitate the rotation of the connecting rod 21, the anti-dropping mechanism may further include a handle 23 for driving the connecting rod 21 to rotate, and the handle 23 is connected to the other end of the connecting rod 21. By arranging the handle 23, the operation of the limiting member 22 changing between the clamping position and the disengaging position is more convenient and more humanized.
In order to enhance the restriction effect on the suspension boot 11, the anti-slip mechanism may include two links 21, the two links 21 being spaced apart from each other in the direction of spacing between the inner ear plate 112 and the outer ear plate 113, the two links 21 being rotatably connected to the inner ear plate 112 and the outer ear plate 113.
In the above, it can be understood that the two connecting rods 21 can be connected to the inner ear plate 112 and the outer ear plate 113 respectively by the pin 24 (as shown in fig. 1 and 2), and can also be connected to the inner ear plate 112 and the outer ear plate 113 by a pin. In addition, each link 21 may be connected with a limiting member 22 and a handle 23, or two links 21 may share one limiting member 22 and one handle 23. In this case, as shown in fig. 2, the stopper 22 and the handle 23 may be rod-shaped members, and the stopper 22 and the handle 23 are connected between the two links 21 at a distance from each other. The bottom end recess 122 of step 12 may be configured to extend in the lateral direction of step 12. Preferably, the extending directions of the limiting member 22 and the handle 23 are perpendicular to the extending direction of the connecting rod 21, that is, the limiting member 22 and the handle 23 are arranged in parallel. It is further preferable that the limiting member 22 is closer to the rotation axis of the link 21 than the handle 23 in the extending direction of the link 21, so that the moment on the handle side is larger than the moment on the limiting member side, and the balancing of the limiting member 22 in the engaging position and the disengaging position can be realized by using the lever structure thereof, that is, the limiting member 22 can be better kept in the engaging position or the disengaging position.
In the invention, in order to further enhance the reliability of the hanging boot 11 hanging on the step 12, the anti-dropping mechanism may further comprise a locking structure, and the locking structure is configured as follows: when the limiting member 22 is in the click position, the locking structure can releasably lock the link 21 to prevent the link 21 from rotating. By the arrangement of the locking structure, the link 21 does not rotate accidentally to change the position of the stopper 22.
In the above, the locking structure may be any suitable structure as long as it can prevent the link 21 from rotating when the stopper 22 is in the engagement position. For example, the locking structure may be a cooperating catch provided on one of the link 21 (or handle 23) and the suspension shoe 11 and a catch provided on the other of the link 21 (or handle 23) and the suspension shoe 11.
According to one embodiment of the locking arrangement of the present invention, said locking arrangement comprises a locking pin 25 and a catch 26 cooperating, the locking pin 25 being movably connected to the link 21, the catch 26 being arranged on the suspension shoe 11, the locking pin 25 being arranged to be able to be transferred between a locked state in which it engages the catch 26 to prevent rotation of the link 21 and an unlocked state in which it is disengaged from the catch 26 to allow rotation of the link 21.
Specifically, as shown in fig. 3, one end of the lock pin 25 is rotatably connected to the link 21, the rotation axis of the lock pin 25 is parallel to the rotation axis of the link 21, the other end of the lock pin 25 is formed with a hook 251, the lock catch 26 is an L-shaped member extending from the inner ear plate 112 or the outer ear plate 113 in a direction perpendicular to the rotation axis of the lock pin 25 and bent upward, and the lock pin 25 is rotatable between a locked state in which the hook 251 is screwed into the lock catch 26 and an unlocked state in which the hook 251 is unscrewed from the lock catch 26.
The lock pin 25 may be directly attached to the link 21, or an attachment seat 27 for attaching the lock pin 25 may be provided on the link 21. For example, as shown in fig. 3, one end of the lock pin 25 is inserted into the mounting seat 27 and can reciprocate relative to the mounting seat 27 in the insertion direction, and an end of the lock pin 25 is provided with a stopper 252 to prevent the lock pin 25 from being detached from the mounting seat 27.
When in use, referring to fig. 3, when the limiting member 22 is located at the clamping position, the lock pin 25 can be pulled out to the right and then screwed into the lock catch 26 for locking, at this time, the connecting rod 21 cannot rotate, and the limiting member 22 is limited at the clamping position; when it is desired to rotate the retainer 22 to the disengaged position, the lock pin 25 can be rotated out of the lock catch 26 and then pushed leftward away from the lock catch 26, and then the connecting rod 21 can be rotated to rotate the retainer 22 out of the bottom recess 122 of the step 12, and the connecting rod 21 can be rotated continuously until the handle 23 is tangent to the surface of the step 12 (as shown in fig. 4), at which time the retainer 22 will remain in the disengaged position because the moment on the handle side is greater than that on the retainer side.
The invention provides a tower crane, which comprises a standard joint 13, a jacking cross beam 14 and the anti-falling mechanism, wherein the step 12 is arranged on the standard joint 13, and the hanging shoes 11 are connected to the jacking cross beam 14.
As shown in fig. 1, two ends of the jacking cross beam 14 are respectively connected with hanging shoes 11, the tower crane comprises two parallel and spaced standard sections 13, and the two hanging shoes 11 are respectively hung on the steps 12 of the two standard sections 13. Wherein, the end of the jacking cross beam 14 is rotatably connected between the inner ear plate 112 and the outer ear plate 113 of the hanging boot 11 through the rotating shaft 15.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The utility model provides an anti-disengaging mechanism for tower crane hanging shoe, includes hanging shoe (11) and mark time (12), hanging shoe (11) hang and locate mark time (12), its characterized in that, anti-disengaging mechanism include connecting rod (21) and connect in locating part (22) of the one end of connecting rod (21), connecting rod (21) rotationally connect in hanging shoe (11), locating part (22) set up to can pass through the rotation of connecting rod (21) in the joint in the bottom of marking time (12) is in order to prevent hanging shoe (11) breaks away from the joint position of marking time (12) with break away from the bottom of marking time (12) is in order to allow hanging shoe (11) breaks away from change between the position that breaks away from of marking time (12).
2. The anti-separation mechanism according to claim 1,
the anti-falling mechanism comprises a locking structure, and the locking structure is arranged as follows: when the limiting piece (22) is in the clamping position, the locking structure can releasably lock the connecting rod (21) to prevent the connecting rod (21) from rotating; and/or
Hang boots (11) and include link plate (111) and follow interior otic placode (112) and outer otic placode (113) that one side of link plate (111) outwards extended, interior otic placode (112) with outer otic placode (113) set up at an interval each other, link plate (111) offer be used for with mark time (12) hang dress hole (114) of establishing, it is located to hang dress hole (114) interior otic placode (112) with between outer otic placode (113) and set up to right the transition of locating part (22) forms dodges.
3. The anti-separation mechanism according to claim 2,
the locking structure comprises a lock pin (25) and a lock catch (26) which are matched, the lock pin (25) is movably connected to the connecting rod (21), the lock catch (26) is arranged on the hanging shoe (11), and the lock pin (25) is arranged to be capable of being converted between a locking state of being clamped with the lock catch (26) to prevent the connecting rod (21) from rotating and an unlocking state of being separated from the lock catch (26) to allow the connecting rod (21) to rotate; and/or
The anti-falling mechanism is arranged between the inner ear plate (112) and the outer ear plate (113), the connecting rod (21) is rotatably connected with the inner ear plate (112) and/or the outer ear plate (113), and the rotation axis of the connecting rod (21) is parallel to the spacing direction of the inner ear plate (112) and the outer ear plate (113).
4. The anti-separation mechanism according to claim 3,
the anti-falling mechanism comprises a handle (23) for driving the connecting rod (21) to rotate, and the handle (23) is connected to the other end of the connecting rod (21); and/or
The anti-falling mechanism comprises two connecting rods (21), two connecting rods (21) are arranged along the inner ear plate (112) and the outer ear plate (113) at intervals in the interval direction, and the connecting rods (21) are rotatably connected with the inner ear plate (112) and the outer ear plate (113).
5. The anti-separation mechanism according to claim 4, wherein the stopper (22) and the handle (23) are rod-shaped members, and the stopper (22) and the handle (23) are connected between the two links (21) at a distance from each other.
6. The disengagement prevention mechanism according to claim 5, wherein the direction of extension of the stopper (22) and the handle (23) is perpendicular to the direction of extension of the link (21), and the stopper (22) is closer to the rotation axis of the link (21) than the handle (23) in the direction of extension of the link (21).
7. The anti-separation mechanism according to claim 3, wherein one end of the lock pin (25) is rotatably connected to the link (21), the rotation axis of the lock pin (25) is parallel to the rotation axis of the link (21), the other end of the lock pin (25) is formed with a hook portion (251), the lock catch (26) is an L-shaped member extending from the inner lug plate (112) or the outer lug plate (113) in a direction perpendicular to the rotation axis of the lock pin (25) and bent upward, and the lock pin (25) is rotatable between a locked state in which the hook portion (251) is screwed into the lock catch (26) and an unlocked state in which the hook portion (251) is unscrewed from the lock catch (26).
8. The anti-dropping mechanism according to claim 7, wherein the connecting rod (21) is provided with a mounting seat (27) for mounting the lock pin (25), the one end of the lock pin (25) is inserted into the mounting seat (27) and can reciprocate relative to the mounting seat (27) along the insertion direction, and the end of the one end of the lock pin (25) is provided with a stopper (252) to prevent the lock pin (25) from being separated from the mounting seat (27).
9. The anti-drop mechanism according to any one of claims 1-8, characterized in that the top end of the step (12) is provided with a top end groove (121) for the hanging boot (11) to hang; and/or
The bottom of marking time (12) is provided with the confession bottom recess (122) that locating part (22) were gone into the joint position, locating part (22) card is gone into bottom recess (122).
10. A tower crane, characterized in that, tower crane includes standard festival (13), jacking crossbeam (14) and claim 1-9 any one the anticreep mechanism, step (12) install in standard festival (13), hanging boots (11) connect in jacking crossbeam (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911233969.2A CN110984840B (en) | 2019-12-05 | 2019-12-05 | Anti-falling mechanism for tower crane hanging shoes and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911233969.2A CN110984840B (en) | 2019-12-05 | 2019-12-05 | Anti-falling mechanism for tower crane hanging shoes and tower crane |
Publications (2)
| Publication Number | Publication Date |
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| CN110984840A true CN110984840A (en) | 2020-04-10 |
| CN110984840B CN110984840B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911233969.2A Active CN110984840B (en) | 2019-12-05 | 2019-12-05 | Anti-falling mechanism for tower crane hanging shoes and tower crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112194024A (en) * | 2020-10-30 | 2021-01-08 | 江西中天智能装备股份有限公司 | Limiting device for connecting hanging boots and standard knot |
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| KR100634465B1 (en) * | 2005-04-02 | 2006-10-13 | 주식회사 아이엘엔지니어링 | Reinforcement Device for Tower Crane |
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2019
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| KR100634465B1 (en) * | 2005-04-02 | 2006-10-13 | 주식회사 아이엘엔지니어링 | Reinforcement Device for Tower Crane |
| CN202542739U (en) * | 2012-03-15 | 2012-11-21 | 徐州重型机械有限公司 | Self-elevating type tower crane and jacking mechanism thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112194024A (en) * | 2020-10-30 | 2021-01-08 | 江西中天智能装备股份有限公司 | Limiting device for connecting hanging boots and standard knot |
| CN112194024B (en) * | 2020-10-30 | 2022-09-09 | 江西中天智能装备股份有限公司 | Limiting device for connecting hanging boots and standard knot |
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| Publication number | Publication date |
|---|---|
| CN110984840B (en) | 2021-10-26 |
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