Anti-falling locking mechanism, mounting method, jacking device and tower crane

Abstract

The application discloses a kind of anti-drop locking mechanism, installation method, jacking device and tower crane, anti-drop locking mechanism includes fixed fence and locking assembly, fixed fence is located at the end of jacking crossbeam and can be set to the circumferential side of step, locking assembly includes locking seat and anti-drop pin, locking seat is located at the side of fixed fence away from step and is formed with first rotation-stopping part, anti-drop pin is set on locking seat and can be set through fixed fence and step in sequence, locking seat is used to rotate in the case where anti-drop pin is set through fixed fence and step, to rotate to first rotation-stopping part and fixed fence abut, and fixed fence can support first rotation-stopping part upwards, so that the locking of anti-drop pin position can be realized, compared with the locking structure in the prior art, the anti-drop locking mechanism provided in the application significantly improves the convenience of jacking crossbeam disassembly on step.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hoisting machinery, and particularly relates to a locking mechanism for preventing disengagement, a mounting method, a jacking device and a tower crane. BACKGROUND

[0002] When a tower crane is performing a lifting section operation, a jacking beam needs to be hung into a corresponding standard section step structure to provide support for the jacking beam and its related components. In order to prevent the jacking beam from accidentally disengaging from the step, the jacking beam can also be connected to the step through a disengagement prevention safety pin, and the disengagement prevention safety pin is positioned and locked through a locking structure. However, the locking structure in the prior art can cause the jacking beam to be difficult to disassemble and assemble. SUMMARY

[0003] In view of the above defects or deficiencies, the present application provides a locking mechanism for preventing disengagement, a mounting method, a jacking device and a tower crane, aiming to solve the technical problem that the locking structure of the existing disengagement prevention safety pin can cause the jacking beam to be difficult to disassemble and assemble.

[0004] To achieve the above-mentioned purpose, the first aspect of the present application provides a locking mechanism for preventing disengagement, wherein the locking mechanism for preventing disengagement comprises a fixed fence and a locking assembly; the fixed fence is arranged at the end of the jacking beam and can be arranged on the side of the step facing the step; the locking assembly comprises a locking seat and a disengagement prevention pin, the locking seat is located on the side of the fixed fence away from the step and is formed with a first rotation stopping portion, the disengagement prevention pin is arranged on the locking seat and can be arranged in sequence through the fixed fence and the step, the locking seat is used for rotating in the case that the disengagement prevention pin is arranged through the fixed fence and the step, and the first rotation stopping portion is abutted with the fixed fence, and the fixed fence can support the first rotation stopping portion upward.

[0005] In an embodiment of the present application, the fixed fence is provided with a second rotation stopping portion on the side deviating from the axis of the disengagement prevention pin, the second rotation stopping portion is used for aligning and clamping with the first rotation stopping portion, and can support the first rotation stopping portion upward.

[0006] In an embodiment of the present application, the fixed fence comprises a front end plate and a side plate, the front end plate is arranged at the end of the jacking beam and is used for being arranged on the side of the step facing away from the standard section, the side plate is arranged at the end of the front end plate away from the jacking beam and is used for being arranged on the side of the step facing away from the jacking beam, the second rotation stopping portion is arranged on the front end plate, the disengagement prevention pin is arranged on the first part of the locking seat facing the side plate, and can be arranged in sequence through the side plate and the step, and the first rotation stopping portion is arranged on the second part of the locking seat facing the front end plate.

[0007] In an embodiment of the present application, the locking seat comprises a mounting plate and a stop plate connected with the mounting plate, the mounting plate is arranged as the first part, and the disengagement prevention pin is arranged vertically on the mounting plate, the stop plate is arranged as the second part, and the extension direction of the stop plate is consistent with the extension direction of the disengagement prevention pin.

[0008] In an embodiment of the present application, the front end plate is provided with an observation slot, and the observation slot is arranged opposite to the side of the step away from the side plate.

[0009] In an embodiment of the present application, the lower side of the locking seat is formed with a locking hole serving as the first rotation stopping part, and the second rotation stopping part is arranged as a locking plate opposite to the locking hole.

[0010] In an embodiment of the present application, the anti-disengagement locking mechanism further comprises a control rod, the control rod has a clamping end arranged on the locking seat and a control end arranged outwardly, and the control end is used for applying a rotating force and a pushing and pulling force to the locking seat, respectively.

[0011] In an embodiment of the present application, the locking seat is provided with a clamping structure, the clamping structure is formed with a channel space for the clamping end to extend into, and one of the clamping structure and the clamping end is provided with a first clamping part, and the other is provided with a second clamping part, and the first clamping part is detachably clamped into the second clamping part.

[0012] In an embodiment of the present application, the clamping structure is arranged to comprise a first control plate and a second control plate, the first control plate and the second control plate are arranged in sequence and spaced apart from top to bottom on the locking seat, the first control plate and the second control plate are both formed with a clamping hole serving as the second clamping part at one end away from the control end, the clamping end is arranged between the first control plate and the second control plate, and opposite sides of the clamping end are both provided with a clamping plate serving as the first clamping part, and the clamping plate is clamped into the clamping hole one by one.

[0013] In an embodiment of the present application, the clamping structure is arranged to comprise an operation sleeve, the operation sleeve is arranged on the locking seat and has an inner cavity for the clamping end to extend into, the operation sleeve is formed with a limiting clamping groove serving as the second clamping part, and the clamping end is provided with a clamping shaft serving as the first clamping part, and the clamping shaft is arranged to extend out of the inner cavity from the limiting clamping groove.

[0014] To achieve the above object, the second aspect of the present application provides an installation method, wherein the installation method is applied to the anti-disengagement locking mechanism according to the above description, and comprises:

[0015] The locking seat is installed on the fixed fence in advance;

[0016] The jacking cross beam is hung on the step of the standard section, and the fixed fence is arranged to face the circumferential side of the step;

[0017] The locking seat is pushed towards the fixed fence to make the anti-disengagement pin pass through the step;

[0018] The locking seat is controlled to rotate to the first rotation stopping part to abut against the fixed fence, and the fixed fence can support the first rotation stopping part upwardly.

[0019] To achieve the above object, the third aspect of the present application provides a jacking device, wherein the jacking device comprises a jacking beam and the anti-falling locking mechanism as described above, and the end of the jacking beam is sequentially provided with a hanging plate and a fixed fence from top to bottom, and the hanging plate is used for hanging on the step of the standard section.

[0020] In an embodiment of the present application, the lower end of the jacking beam is further provided with a support plate, and the lower end of the support plate is used for abutting against the main chord of the standard section.

[0021] To achieve the above object, the fourth aspect of the present application provides a tower crane, wherein the tower crane comprises the jacking device as described above.

[0022] Through the above technical solution, the anti-falling locking mechanism provided by the present application has the following beneficial effects:

[0023] When the jacking beam uses the anti-falling locking mechanism, because the fixed fence and the locking assembly are included, the fixed fence is arranged at the end of the jacking beam, and when the jacking beam is hung on the step, the fixed fence is arranged to face the circumferential side of the step, the locking seat of the locking assembly is located on the side of the fixed fence away from the step, that is, the locking seat is located at the outermost side, the fixed fence is located between the locking seat and the step, and the anti-falling pin of the locking assembly is arranged on the locking seat and can be sequentially arranged through the fixed fence and the step. Specifically, when the jacking beam is not hung on the step, the locking seat is arranged on the fixed fence through the anti-falling pin to realize the installation of the locking seat on the jacking beam, after the jacking beam is hung on the step, the locking seat can be pushed towards the fixed fence first, so that the anti-falling pin moves towards the step, until the anti-falling pin is arranged on the step, and then the locking seat is rotated, so that the first rotation part on the locking seat is rotated to abut against the fixed fence, and when the first rotation part abuts against the fixed fence, the fixed fence can provide upward support for the first rotation part and lock the first rotation part, so that the position of the anti-falling pin can be locked, and compared with the locking structure in the prior art, the anti-falling locking mechanism provided in the present application obviously improves the locking performance of the anti-falling pin and the convenience of disassembling the jacking beam on the step.

[0024] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0026] Figure 1 is a structural schematic diagram of a standard joint to which a jacking beam is mounted through a lockout mechanism for preventing disengagement according to an embodiment of the present application;

[0027] Figure 2 is Figure 1 is an enlarged schematic diagram of A in FIG. 4;

[0028] Figure 3 is a structural schematic diagram of a jacking beam to which a lockout mechanism for preventing disengagement is arranged according to an embodiment of the present application;

[0029] Figure 4 is Figure 3 is an enlarged schematic diagram of B in FIG. 5;

[0030] Figure 5 is a structural schematic diagram of a lockout assembly according to a first embodiment of the present application;

[0031] Figure 6 is a structural schematic diagram of a control lever according to the first embodiment of the present application;

[0032] Figure 7 is a structural schematic diagram of a lockout assembly according to a second embodiment of the present application;

[0033] Figure 8 is a structural schematic diagram of a control lever according to the second embodiment of the present application;

[0034] Figure 9 is an enlarged schematic diagram of a fixed fence on a jacking beam according to an embodiment of the present application;

[0035] Figure 10 is a force application schematic diagram of upward rotation of a lockout seat according to an embodiment of the present application;

[0036] Figure 11 is a force application schematic diagram of insertion of a lockout mechanism for preventing disengagement according to an embodiment of the present application;

[0037] Figure 12 is a force application schematic diagram of downward rotation of a lockout seat according to an embodiment of the present application.

[0038] BRIEF DESCRIPTION OF REFERENCE NUMERALS:

[0039] 100, fixed fence; 110, front end plate; 111, observation notch; 120, side plate; 121, first bolt hole; 130, second rotation-stopping part; 200, locking assembly; 210, locking seat; 211, mounting plate; 212, stop plate; 213, first rotation-stopping part; 220, anti-dropping bolt; 230, clamping structure; 231, first operating plate; 232, second operating plate; 233, clamping opening; 234, operating sleeve; 235, limiting clamping groove; 300, operating rod; 301, clamping plate; 302, clamping shaft; 400, jacking cross beam; 401, hanging plate; 402, supporting plate; 500, standard section; 501, main chord; 502, step. DETAILED DESCRIPTION

[0040] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended for illustration and explanation of the present application, and are not intended to limit the present application.

[0041] The anti-dropping locking mechanism, mounting method, jacking device and tower crane of the present application are described below with reference to the accompanying drawings.

[0042] As shown in Figures 1 to 5 The present application provides an anti-dropping locking mechanism, wherein the anti-dropping locking mechanism comprises:

[0043] The fixed fence 100 is arranged at the end of the jacking cross beam 400 and can be arranged on the circumferential side of the step 502;

[0044] The locking assembly 200 comprises a locking seat 210 and an anti-dropping bolt 220. The locking seat 210 is located on the side of the fixed fence 100 away from the step 502 and is formed with a first rotation-stopping part 213. The anti-dropping bolt 220 is arranged on the locking seat 210 and can be arranged through the fixed fence 100 and the step 502 in sequence. The locking seat 210 is used to rotate when the anti-dropping bolt 220 is arranged through the fixed fence 100 and the step 502. The first rotation-stopping part 213 is abutted with the fixed fence 100, and the fixed fence 100 can support the first rotation-stopping part 213 upward.

[0045] When the jacking cross beam 400 uses the anti-falling locking mechanism, the fixed fence 100 is arranged at the end of the jacking cross beam 400, and the fixed fence 100 is arranged on the side of the step 502 facing the step 502 when the jacking cross beam 400 is hung on the step 502, and the locking seat 210 of the locking assembly 200 is located on the side of the fixed fence 100 away from the step 502, that is, the locking seat 210 is located on the outermost side, and the fixed fence 100 is located between the locking seat 210 and the step 502, and the anti-falling pin 220 of the locking assembly 200 is arranged on the locking seat 210 and can be arranged in turn through the fixed fence 100 and the step 502, specifically, when the jacking cross beam 400 is not hung on the step 502, the locking seat 210 is arranged on the fixed fence 100 through the anti-falling pin 220 to realize the installation of the locking seat 210 on the jacking cross beam 400, after the jacking cross beam 400 is hung on the step 502, the locking seat 210 can be pushed towards the fixed fence 100 first, so that the anti-falling pin 220 moves towards the step 502, until the anti-falling pin 220 is arranged on the step 502, and then the locking seat 210 is rotated, so that the first rotation stop portion 213 on the locking seat 210 is rotated to abut against the fixed fence 100, and when the first rotation stop portion 213 abuts against the fixed fence 100, the fixed fence 100 can provide upward support for the first rotation stop portion 213 and lock the first rotation stop portion 213, so that the position of the anti-falling pin 220 can be locked, and compared with the locking structure in the prior art, the anti-falling locking mechanism provided in the application obviously improves the locking performance of the anti-falling pin 220 and the convenience of disassembling the jacking cross beam 400 on the step 502.

[0046] Specifically, when the locking assembly 200 is installed in place, the locking seat 210 can abut against the fixed fence 100 to realize the end positioning of the anti-falling pin 220, and the first rotation stop portion 213 abuts against the fixed fence 100 to realize the circumferential positioning of the anti-falling pin 220.

[0047] In an embodiment of the application, the fixed fence 100 is provided with a second rotation stop portion 130 on the side deviating from the axis of the anti-falling pin 220, which is used to abut and engage with the first rotation stop portion 213 and can support the first rotation stop portion 213 upward. By additionally providing the second rotation stop portion 130 on the fixed fence 100, which abuts and engages with the first rotation stop portion 213, the reliability of the position locking can be improved. Specifically, the abutting and engaging position between the first rotation stop portion 213 and the second rotation stop portion 130 can be provided as at least two positions, and the second rotation stop portion 130 is arranged on the side of the fixed fence 100 away from the axis of the anti-falling pin 220, that is, the locking of the second rotation stop portion 130 to the first rotation stop portion 213 is located on the outer side of the anti-falling pin 220, so as to facilitate the locking release.

[0048] Referring to Figure 3 , Figure 4 and Figure 9 , in an embodiment of the present application, the fixed fence 100 comprises a front end plate 110 and a side plate 120, the front end plate 110 is arranged at the end of the jacking beam 400 and is used to be arranged on the side of the step 502 facing away from the standard section 500, the side plate 120 is arranged at the end of the front end plate 110 away from the jacking beam 400 and is used to be arranged on the side of the step 502 facing away from the jacking beam 400, that is, the end of the jacking beam 400, the front end plate 110 and the side plate 120 are sequentially connected and arranged on the three sides of the step 502 respectively to circumferentially enclose the step 502, at the same time, the second rotation stopping part 130 is arranged on the front end plate 110, the anti-extraction pin 220 is arranged on the first part of the locking seat 210 arranged facing the side plate 120 and can be sequentially arranged through the side plate 120 and the step 502, and the first rotation stopping part 213 is arranged on the second part of the locking seat 210 arranged facing the front end plate 110, so that the fitting planes of the first rotation stopping part 213 and the second rotation stopping part 130 are not in the same plane as the circumferential rotation plane of the anti-extraction pin 220, thereby further ensuring the stability of the fitting.

[0049] Specifically, the front end plate 110 and the side plate 120 are arranged in an L shape, the front end plate 110 can be welded to the end of the jacking beam 400, the side plate 120 can be welded to the front end plate 110 or can be bent at the end of the front end plate 110 away from the jacking beam 400, and the side plate 120 is provided with a first pin hole 121 for the anti-extraction pin 220 to pass through, the first pin hole 121 is used to be arranged in communication with the second pin hole on the step 502 when the jacking beam 400 is hung on the step 502. In addition, the number of the second rotation stopping part 130 is at least two, the at least two second rotation stopping parts 130 are sequentially and spacedly arranged from the side plate 120 towards the end of the jacking beam 400, correspondingly, the number of the first rotation stopping part 213 is consistent with that of the second rotation stopping part 130, and the two can be one-to-one correspondingly fitted and clamped.

[0050] Of course, the present application is not limited thereto, the second rotation stopping part 130 can also be arranged on the side plate 120, for example, the second rotation stopping part 130 is arranged on the side of the side plate 120 away from the standard section 500, correspondingly, the locking seat 210 can only be provided with the first part arranged facing the side plate 120, and the anti-extraction pin 220 and the first rotation stopping part 213 are both arranged on the first part.

[0051] Referring to Figures 3 to 5In one embodiment of the present invention, the locking seat 210 includes a mounting plate 211 and a stop plate 212 connected to the mounting plate 211. The mounting plate 211 is a first part, that is, the mounting plate 211 is disposed facing the side plate 120 and is provided with an anti-detachment pin 220, and the anti-detachment pin 220 is vertically disposed on the mounting plate 211, thereby ensuring the smooth insertion and removal of the anti-detachment pin 220. At the same time, the stop plate 212 is a second part, that is, the stop plate 212 is disposed facing the front end plate 110 and is formed with a first anti-rotation part 213. The extension direction of the stop plate 212 is set to be consistent with the extension direction of the anti-detachment pin 220. Since the first anti-rotation part 213 can be set to extend along the extension direction of the stop plate 212, or at least two first anti-rotation parts 213 can be arranged sequentially at intervals along the extension direction of the stop plate 212, that is, the extension direction or setting direction of the corresponding second stop part can be set to be consistent with the extension direction of the anti-detachment pin 220, thereby ensuring the uniformity of the force on the second stop part at different positions. Specifically, the stop plate 212 can be welded to the mounting plate 211, or it can be bent from one end of the mounting plate 211. The anti-detachment pin 220 can be made of round steel.

[0052] like Figure 9 As shown, in one embodiment of the present invention, an observation slot 111 is provided on the front end plate 110, and the observation slot 111 is positioned opposite the side of the step 502 away from the side plate 120. That is, the observation slot 111 facilitates observation of whether the anti-detachment pin 220 is inserted correctly. Specifically, the observation slot 111 is located above the second anti-rotation part 130, meaning that when the locking assembly 200 is installed correctly, the anti-detachment pin 220 should be located above the second anti-rotation part 130.

[0053] See Figures 3 to 5 , Figure 9 In one embodiment of the present invention, a locking opening, which serves as a first anti-rotation part 213, is formed on the lower side of the locking seat 210, and a second anti-rotation part 130 is a locking plate that is aligned with the locking opening. The choice to provide a locking opening on the locking seat 210 ensures the stability of the locking seat 210 during alignment and engagement. Specifically, at least two locking openings are sequentially spaced apart on the lower side of the stop plate 212 of the locking seat 210 in the extending direction. At least two locking plates are provided on the front end plate 110 corresponding to at least two locking openings, and the opening height of the locking opening can be consistent with the height of the locking plate. The upper end of the locking plate is used to abut against the upper wall surface of the locking opening, and the lower side of the mounting plate 211 is flush with the lower side of the stop plate 212. Of course, the present invention is not limited to this; it is also possible for the second anti-rotation part 130 to have a locking opening, and for the locking seat 210 to have a locking plate that serves as the first anti-rotation part 213 extending from its lower side.

[0054] like Figure 4As shown, in an embodiment of the present application, the anti-disengagement locking mechanism further comprises a lever 300, the lever 300 has a clamping end arranged on the locking seat 210 and a manipulating end arranged outwardly, the manipulating end can be used to apply rotating force and pushing and pulling force to the locking seat 210 respectively. Then through the addition of the lever 300, it can be convenient to operate the lever 300 when the hand cannot reach the locking seat 210, so as to install the locking assembly 200 in place.

[0055] Specifically, after the jacking cross beam 400 is hung on the step 502, the upward rotating force can be first applied to the locking seat 210 through the manipulating end, so that the first rotation stopping part 213 is rotated to a position away from the second rotation stopping part 130, then the pushing force in the direction of approaching the fixed fence 100 is applied to the locking seat 210 through the manipulating end, so that the anti-disengagement pin 220 on the locking seat 210 is inserted into the second pin hole of the step 502, after the anti-disengagement pin 220 is inserted in place, finally the downward rotating force is applied to the locking seat 210 through the manipulating end, so that the first rotation stopping part 213 is rotated to the position of abutting and clamping with the second rotation stopping part 130. More specifically, the clamping end is arranged on the mounting plate 211 of the locking seat 210 and located on the side away from the standard section 500 of the anti-disengagement pin 220, that is, the clamping end is located between the anti-disengagement pin 220 and the first rotation stopping part 213.

[0056] In an embodiment of the present application, the locking seat 210 is provided with a clamping structure 230, the clamping structure 230 is formed with a channel space for the clamping end to extend into, that is, the clamping structure 230 can limit the clamping end from the opposite sides of the clamping end, and one of the clamping structure 230 and the clamping end is provided with a first clamping part, and the other is provided with a second clamping part, the first clamping part is detachably clamped into the second clamping part, then through the addition of the clamping structure 230, the clamping end of the lever 300 can be detachably clamped and installed on the locking seat 210, so as to facilitate the disassembly and replacement of the lever 300, so that the lever 300 matched with different sizes can be replaced.

[0057] Referring to Figure 5 and Figure 6In the first embodiment of the present application, the clamping structure 230 can be provided with a first operating plate 231 and a second operating plate 232, which are arranged in sequence and spaced apart in the up-down direction on the locking seat 210. The first operating plate 231 and the second operating plate 232 are provided with clamping openings 233 as the second clamping portions at one end away from the operating end. The clamping end is arranged between the first operating plate 231 and the second operating plate 232, that is, the space between the first operating plate 231 and the second operating plate 232 can become a passage space. The opposite sides of the clamping end are provided with clamping plates 301 as the first clamping portions, which can be clamped in the clamping openings 233 one by one. The clamping structure 230 is provided with two operating plates having clamping openings 233, and the opposite sides of the clamping end are provided with clamping plates 301. Therefore, the clamping end is clamped at two positions on the clamping structure 230, thereby improving the reliability of clamping on the basis of facilitating disassembly. Further, the portion of the operating rod 300 between the clamping end and the operating end can be arranged between the first operating plate 231 and the second operating plate 232, and then the operating rod 300 is pulled to make the clamping plates 301 on the clamping end enter the corresponding clamping openings 233, thereby achieving stable installation of the clamping end on the clamping structure 230. At the same time, since the first operating plate 231 and the second operating plate 232 are arranged in sequence and spaced apart in the up-down direction, the second operating plate 232 on the lower side can also support the operating rod 300.

[0058] Referring to Figure 7 and Figure 8 In the second embodiment of the present application, the clamping structure 230 can be provided with an operating sleeve 234 arranged on the locking seat 210 and having an inner cavity for the clamping end to extend into, that is, the inner cavity of the operating sleeve 234 can become a passage space. The operating sleeve 234 is provided with a limiting clamping groove 235 as the second clamping portion. The clamping end is provided with a clamping shaft 302 as the first clamping portion, which can extend out of the inner cavity from the limiting clamping groove 235. The clamping structure 230 is provided with the operating sleeve 234 having the limiting clamping groove 235, and the clamping end is provided with the clamping shaft 302. Since the groove wall of the limiting clamping groove 235 limits the clamping shaft 302 in the axial direction, the clamping end can be clamped and installed on the clamping structure 230. Further, the limiting clamping groove 235 can be provided in an L shape, and the opening of the limiting clamping groove 235 is arranged to face the operating end. The clamping shaft 302 on the clamping end can be aligned with the opening of the limiting clamping groove 235, and then the operating rod 300 is pushed to move towards the inner cavity of the operating sleeve 234. When the clamping shaft 302 is pushed to the limit position of the vertical segment of the limiting clamping groove 235, the operating rod 300 is rotated to make the clamping shaft 302 rotate into the horizontal segment of the limiting clamping groove 235.

[0059] In summary, the anti-disengagement locking mechanism has the following advantages: the anti-disengagement pin 220 is positioned by clamping and is easy to install; the locking seat 210 is operated by the operating lever 300, and the clamping structure 230 is used between the operating lever 300 and the locking seat 210, which is convenient to disassemble and assemble; the length of the operating lever 300 can be designed flexibly to adapt to the installation of safety pins in different installation distance positions.

[0060] In addition, the application also provides an installation method, wherein the installation method is applied to the anti-disengagement locking mechanism described above and comprises the following steps:

[0061] In step S100, the locking seat 210 is pre-installed on the fixed coaming 100.

[0062] Specifically, the pre-installation of the locking seat 210 on the fixed coaming 100 can be achieved by inserting the anti-disengagement pin 220 on the locking seat 210 into the fixed coaming 100. More specifically, the first pin hole 121 is formed in the side plate 120 of the fixed coaming 100, and the anti-disengagement pin 220 on the locking seat 210 is inserted into the first pin hole 121 of the side plate 120, thereby achieving the pre-installation of the locking seat 210.

[0063] Further, in step S100, the locking seat 210 is pre-installed on the fixed coaming 100, which comprises the following steps:

[0064] The anti-disengagement pin 220 on the locking seat 210 is inserted into the fixed coaming 100, and the first stop portion provided on the stop plate 212 away from the mounting plate 211 is aligned and clamped with the second stop portion provided on the front end plate 110 close to the side plate 120.

[0065] It can be understood that before the jacking beam 400 is hung, in addition to the pre-installation positioning by the anti-disengagement pin 220, the alignment and clamping structure of the first stop portion and the second stop portion can also be fully utilized to further improve the stability of the locking seat 210 during pre-installation and prevent accidental falling. At the same time, the pre-installation positioning of the above two structures can also ensure that the anti-disengagement pin 220 does not exceed the limit during pre-installation, ensuring the accuracy of the pre-installation size.

[0066] In step S200, the jacking beam 400 is hung on the step 502 of the standard node 500, and the fixed coaming 100 faces the circumferential side of the step 502.

[0067] Specifically, the end of the jacking beam 400 is further provided with a hanging plate 401, and the hanging plate 401 and the fixed fence 100 are sequentially and spacedly arranged from top to bottom at the end of the jacking beam 400. When the jacking beam 400 is hung, the lower end surface of the hanging plate 401 abuts against the upper end surface of the step 502, and the front end plate 110 of the fixed fence 100 is arranged on the side facing away from the standard section 500 of the step 502, and the side plate 120 of the fixed fence 100 is arranged on the side facing away from the end of the jacking beam 400 of the step 502.

[0068] In step S300, the locking seat 210 is pushed towards the fixed fence 100 to make the anti-extraction pin 220 pass through the step 502.

[0069] Further, if the first rotation stopping portion 213 of the locking seat 210 is not aligned and engaged with the second rotation stopping portion 130 during pre-installation, or even the first rotation stopping portion 213 is arranged away from the second rotation stopping portion 130, the locking seat 210 can be directly pushed towards the fixed fence 100 to move, until the anti-extraction pin 220 on the locking seat 210 is inserted into the second pin hole of the step 502, and when the operating rod 300 is arranged on the locking seat 210, the above operation can be performed by the operating rod 300.

[0070] In addition, when the first stopping portion arranged away from the mounting plate 211 on the stopping plate 212 is aligned and engaged with the second stopping portion arranged close to the side plate 120 on the front end plate 110 during pre-installation, as shown in Figure 10 , the locking seat 210 can be first applied with an upward rotating force to make the first rotation stopping portion 213 rotate to a position away from the second rotation stopping portion 130, so as to perform step S300 as shown in Figure 11 .

[0071] In step S400, the locking seat 210 is controlled to rotate to a position where the first rotation stopping portion 213 abuts against the fixed fence 100, and the fixed fence 100 can support the first rotation stopping portion 213 upward.

[0072] It can be understood that after the anti-extraction pin 220 is inserted into position, the locking seat 210 is controlled to rotate downward, and at the limit position of rotation, the first rotation stopping portion 213 of the locking seat 210 can be aligned and engaged with the second rotation stopping portion 130 of the fixed fence 100 one by one, which can be specifically as shown in Figure 12 .

[0073] In addition, as shown in Figure 1 and 2As shown, the jacking device further comprises the jacking cross beam 400 and the anti-disengagement locking mechanism according to the above description, and the end of the jacking cross beam 400 is sequentially provided with the hanging plate 401 and the fixed fence 100 from top to bottom, and the hanging plate 401 is used for hanging on the step 502 of the standard section 500. Since the jacking device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0074] Understandably, the opposite two ends of the jacking cross beam 400 can be provided with the hanging plate 401 and the anti-disengagement locking mechanism.

[0075] In an embodiment of the present application, the lower end of the jacking cross beam 400 is further provided with the support plate 402, and the lower end of the support plate 402 is used for abutting with the main chord 501 of the standard section 500. The addition of the support plate 402 can prevent the jacking cross beam 400 from rotating when subjected to force, and ensure that the anti-disengagement pin 220 can be smoothly inserted. Specifically, the number of the support plate 402 is two, and the two support plates 402 are respectively and correspondingly arranged with the two main chords 501 on the side of the jacking cross beam 400, and the two support plates 402 are gradually away from each other in the direction from top to bottom, so that the lower end is respectively used for abutting with the outside of the two main chords 501, that is, the two support plates 402 can be arranged in an eight-character shape.

[0076] In an embodiment of the present application, the jacking cross beam 400 adopts a whole box beam structure, which is compact and stable.

[0077] In addition, the present application further provides a tower crane, wherein the tower crane comprises the jacking device according to the above description. Since the tower crane adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0078] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0079] In this application, unless otherwise clearly indicated, the terms "mounting", "connection", "connecting", "fixed", "fixedly connected" and the like should be understood in the broadest sense possible, such as it can be fixedly connected, detachably connected, or integral; it can be a mechanical connection, an electrical connection, or a communication connection between them; it can be a direct connection, or an indirect connection via an intermediate medium; it can be a communication between two elements, or an interaction between two elements, unless otherwise clearly indicated. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0081] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A detaching prevention locking mechanism characterized by comprising: The anti-disengagement locking mechanism comprises: A fixed fence (100) arranged at the end of the jacking cross beam (400) and facing the circumferential side of the step (502); A locking assembly (200) comprising a locking seat (210) and an anti-disengagement pin (220), the locking seat (210) is located on the side of the fixed fence (100) away from the step (502) and is formed with a first rotation stopping portion (213), the anti-disengagement pin (220) is arranged on the locking seat (210) and can be arranged through the fixed fence (100) and the step (502) in sequence, the locking seat (210) is used for rotating when the anti-disengagement pin (220) is arranged through the fixed fence (100) and the step (502), so as to rotate to the first rotation stopping portion (213) abutting against the fixed fence (100), and the fixed fence (100) can support and lock the first rotation stopping portion (213) upward. The fixed fence (100) comprises a front end plate (110) and a side plate (120), the front end plate (110) is arranged at the end of the jacking cross beam (400) and is used for being arranged on the side of the step (502) away from the standard section (500), the side plate (120) is arranged at the end of the front end plate (110) away from the jacking cross beam (400) and is used for being arranged on the side of the step (502) away from the jacking cross beam (400), the anti-disengagement pin (220) is arranged on the first part of the locking seat (210) arranged facing the side plate (120), and can be arranged through the side plate (120) and the step (502) in sequence, and the first rotation stopping portion (213) is arranged on the second part of the locking seat (210) arranged facing the front end plate (110).

2. The anti-disengagement lock mechanism of claim 1, wherein The fixed fence (100) is provided with a second rotation stopping portion (130) on the side deviating from the axis line of the anti-disengagement pin (220), the second rotation stopping portion (130) is used for being positioned and clamped with the first rotation stopping portion (213) and can support the first rotation stopping portion (213) upward.

3. The anti-disengagement lock mechanism of claim 2, wherein The second rotation stopping portion (130) is arranged on the front end plate (110).

4. The anti-disengagement lock mechanism of claim 3, wherein The locking seat (210) comprises a mounting plate (211) and a stop plate (212) connected with the mounting plate (211), the mounting plate (211) is arranged as the first part, and the anti-disengagement pin (220) is vertically arranged on the mounting plate (211), the stop plate (212) is arranged as the second part, and the extension direction of the stop plate (212) is consistent with the extension direction of the anti-disengagement pin (220); And / or, an observation slot (111) is formed on the front end plate (110), and the observation slot (111) is arranged opposite to the side of the step (502) away from the side plate (120).

5. The anti-disengagement lock mechanism of claim 2, wherein The lower side of the locking seat (210) is formed with a locking hole as the first rotation stopping portion (213), and the second rotation stopping portion (130) is arranged as a lock plate positioned with the locking hole.

6. The pull-out preventing lock mechanism according to any one of claims 1 to 5, characterized in that, The anti-disengagement locking mechanism further comprises a lever (300) having a clamping end arranged on the locking seat (210) and a manipulating end extending outwardly, the manipulating end being used to apply a rotating force and a pushing and pulling force to the locking seat (210) respectively.

7. The anti-disengagement lock mechanism of claim 6, wherein The locking seat (210) is provided with a clamping structure (230) forming a channel space for the clamping end to extend into, and one of the clamping structure (230) and the clamping end is provided with a first clamping part and the other is provided with a second clamping part, the first clamping part being detachably clamped into the second clamping part.

8. The anti-disengagement lock mechanism of claim 7, wherein, The clamping structure (230) is arranged to comprise a first manipulating plate (231) and a second manipulating plate (232), the first manipulating plate (231) and the second manipulating plate (232) being arranged in sequence and spaced apart from top to bottom on the locking seat (210), and the first manipulating plate (231) and the second manipulating plate (232) each being formed at an end away from the manipulating end with a clamping opening (233) arranged as the second clamping part, the clamping end being arranged between the first manipulating plate (231) and the second manipulating plate (232), and opposite sides of the clamping end each being provided with a clamping plate (301) as the first clamping part, the clamping plate (301) being correspondingly clamped into the clamping opening (233); Alternatively, the clamping structure (230) is arranged to comprise an operating sleeve (234) arranged on the locking seat (210) and having an inner cavity for the clamping end to extend into, the operating sleeve (234) being formed with a limiting clamping groove (235) arranged as the second clamping part on the operating sleeve (234), and the clamping end being provided with a clamping shaft (302) as the first clamping part, the clamping shaft (302) being arranged to extend out of the limiting clamping groove (235) and into the inner cavity.

9. A method of mounting, characterized by, The mounting method is applied to the anti-disengagement locking mechanism according to any one of claims 1 to 8, and comprises: pre-installing the locking seat (210) on the fixed fence (100); hanging the jacking beam (400) on the step (502) of the standard section (500) and arranging the fixed fence (100) to face the peripheral side of the step (502); pushing the locking seat (210) towards the fixed fence (100) to enable the anti-disengagement pin (220) to be arranged on the step (502); controlling the locking seat (210) to rotate to the first rotation stopping part (213) to abut against the fixed fence (100), and enabling the fixed fence (100) to support the first rotation stopping part (213) upwardly.

10. A jacking device, characterized by The jacking device comprises the jacking beam (400) and the anti-disengagement locking mechanism according to any one of claims 1 to 8, and the end of the jacking beam (400) is sequentially provided with a hanging plate (401) and the fixed fence (100) from top to bottom, and the hanging plate (401) is used to be hung on the step (502) of the standard section (500).

11. Jacking device according to claim 10, characterized in that The lower end of the jacking cross beam (400) is further provided with a supporting plate (402), and the lower end of the supporting plate (402) is used for abutting with the main chord (501) of the standard knot (500).

12. A tower crane, characterized in that The tower crane comprises the jacking device according to claim 10 or 11.

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