Tower crane standard knot pin shaft anti-retreating baffle

Abstract

The utility model relates to a tower crane standard knot pin shaft anti-retreating baffle in the technical field of tower crane standard knot pin shafts, an anti-retreating device comprises an L-shaped steel plate tightly attached to the outer side end of a connecting device, and a connecting rod used for being fixedly connected with a tower crane standard knot is fixedly installed at the end, close to the tower crane standard knot, of the L-shaped steel plate. Fixing bolts used for fixing the L-shaped steel plates are arranged at the outer side ends of the L-shaped steel plates, and the fixing bolts penetrate through the L-shaped steel plates and plate bodies of the connecting rods. Therefore, the L-shaped steel plate can be placed on the outer side of the tower crane standard knot and the pin shaft while the pin shaft is prevented from retreating, the connecting rod and the L-shaped steel plate are connected through the fixing bolt and the nut on the inner side of the tower crane standard knot, and after a whole is formed, the connecting rod part can be welded to the tower crane standard knot and serves as a pin shaft anti-falling measure at the same time. And then the clamping rod is rotated and clamped into the fastening groove of the fixing plate, so that the pin shaft is prevented from transversely moving and being separated from the tower crane standard knot and the lug plate.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane standard section pin shafts, in particular to an anti-exit baffle plate for tower crane standard section pin shafts. Background Art

[0002] The tower body of a tower crane is connected by multiple standard sections, and the standard sections are mostly connected by pins. During the operation of the tower crane, the pins of the standard sections of the tower crane will withdraw due to the influence of the hoisted objects and its own forces.

[0003] For example, for tower cranes above QTZ125, the standard section connections are mostly pin connections, but the pin connection also has disadvantages. That is, when the tower crane with pin connection is in use, the tower body sways and is subjected to force, which causes the standard section vertical pin to deform. Although it will not cause dangerous accidents, it requires maintenance personnel to reinsert the withdrawn pin and replace the vertical pin at intervals, resulting in increased labor and time costs. Utility Model Content

[0004] In order to solve the problem that the tower crane with pin shaft connection proposed in the above background technology is subjected to the force of tower body swinging during use, thereby causing the standard section vertical pin to deform, which will not cause dangerous accidents, but requires maintenance personnel to reinsert the withdrawn pin shaft and replace the vertical pin at intervals, resulting in increased labor and time costs, the utility model provides the following technical solutions:

[0005] A tower crane standard section pin shaft anti-backout baffle, comprising a plurality of tower crane standard sections, characterized in that: a connecting device is arranged between two adjacent tower crane standard sections, an anti-backout device for preventing the connecting device from being disengaged is arranged at the outer end of the connecting device, and a fastening device for fastening the connecting device is arranged at the inner end of the connecting device;

[0006] The anti-retreat device includes an L-shaped steel plate close to the outer end of the connecting device, and a connecting rod for fixed connection to the standard section of the tower crane is fixedly installed on one end of the L-shaped steel plate close to the standard section of the tower crane. A fixing bolt for fixing the L-shaped steel plate is provided at the outer end of the L-shaped steel plate, and the fixing bolt passes through the plate body of the L-shaped steel plate and the connecting rod.

[0007] Furthermore, the fastening device comprises a fixing block fixedly mounted on the inner end of the tower crane standard section, and a clamping rod for fastening the connecting device is movably connected to the block body of the fixing block.

[0008] Furthermore, the connecting device includes a pin shaft that passes through the standard section of the tower crane, a vertical pin for limiting the pin shaft is inserted into the shaft body of the pin shaft, and the vertical pin passes through the shaft body of the pin shaft, and a fixing plate for preventing the pin shaft from detaching is fixedly installed at one end of the pin shaft away from the vertical pin, and the fixing plate is fastened to the clamping rod.

[0009] Furthermore, ear plates are fixedly installed inside and outside the column of the tower crane standard section for cooperating with the pin shaft to connect two adjacent tower crane standard sections, and there are four groups of ear plates, which are distributed in a circular array at the four corners of the tower crane standard section.

[0010] Furthermore, a connecting rod for supporting the tower crane standard section is fixedly installed between the two columns of the tower crane standard section, and there are four connecting rods, which are distributed in a circular array between two adjacent columns of the tower crane standard section.

[0011] Furthermore, a cross bar for supporting the standard section of the tower crane is fixedly installed between the two columns of the standard section of the tower crane, and there are two cross bars, which are symmetrically distributed on the upper and lower sides of each connecting rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting up an anti-retreat device and a fastening device, the L-shaped steel plate can be placed on the outside of the standard section of the tower crane and the pin to prevent the pin from retreating. The connecting rod and the L-shaped steel plate are connected on the inside of the standard section of the tower crane using fixing bolts and nuts. After forming a whole, the connecting rod part can be welded to the standard section of the tower crane and serve as a measure to prevent the pin from falling. Then, the clamping rod is rotated and inserted into the fastening groove of the fixed plate to prevent the pin from moving laterally and detaching from the standard section of the tower crane and the ear plate. This can extend the service life of the pin and solve the problems of labor and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a standard section view of the tower crane of the utility model;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the anti-retreat device of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the fastening device of the utility model.

[0019] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0020] 100-tower crane standard section, 101-ear plate, 001-cross bar, 002-connecting rod;

[0021] 200-connecting device, 210-pin shaft, 220-vertical pin, 230-fixing plate;

[0022] 300-anti-recoil device, 310-L-shaped steel plate, 320-connecting rod, 330-fixing bolt;

[0023] 400-fastening device, 410-fixing block, 420-clamping rod. DETAILED DESCRIPTION

[0024] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0025] See also Figure 1-Figure 5 The utility model provides a tower crane standard section pin shaft anti-exit baffle.

[0026] The tower body of the tower crane is connected by a plurality of standard sections, and the standard sections are mostly connected by pins. During the operation of the tower crane, due to the influence of the hoisting object and its own force, the pin of the tower crane standard section will be withdrawn, thereby causing the standard section vertical pin to deform. Although it will not cause dangerous accidents, it is necessary for maintenance personnel to reinsert the withdrawn pin and replace the vertical pin at intervals, resulting in increased labor and time costs. Therefore, it is necessary to improve it, including a plurality of tower crane standard sections 100 assembled into a hanging tower, so as to facilitate the hoisting of building materials such as steel bars and cement in the construction industry; a connecting device 200 is arranged between adjacent tower crane standard sections 100, and an anti-retraction device 300 for preventing the connection device 200 from detaching is arranged at the outer end of the connecting device 200, and a fastening device 400 for fastening the connecting device 200 is arranged at the inner end of the connecting device 200;

[0027] A connecting rod 002 for supporting the tower crane standard section 100 is fixedly installed between the two columns of the tower crane standard section 100, and there are four connecting rods 002, which are distributed in a circular array between two adjacent columns of the tower crane standard section 100, so as to meet the requirement of stable support for the tower crane standard section 100 through the bolt connection between the four connecting rods 002 and the two adjacent columns of the tower crane standard section 100;

[0028] A crossbar 001 for supporting the tower crane standard section 100 is fixedly installed between the two columns of the tower crane standard section 100, and there are two crossbars 001, which are symmetrically distributed on the upper and lower sides of each connecting rod 002, so that the tower crane standard section 100 can work more stably through the connection of the crossbars 001;

[0029] The inner and outer sides of the column of the tower crane standard section 100 are fixedly installed with ear plates 101 for connecting two adjacent tower crane standard sections 100 in cooperation with the pin shaft 210, and there are four groups of ear plates 101, which are distributed in a circular array at the four corners of the tower crane standard section 100, and each group of ear plates 101 has three ear plates, which are all distributed on the supporting column of the tower crane standard section 100, and then the two adjacent tower crane standard sections 100 are connected by the connecting device 200; so that the connecting plate of the previous tower crane standard section 100 is inserted between the two adjacent ear plates 101, and then the two adjacent tower crane standard sections 100 are connected together by the connecting device 200, so as to realize the height lifting of the tower crane to meet the hoisting of building materials for high-rise buildings;

[0030] The connecting device 200 includes a pin shaft 210 that penetrates the tower crane standard section 100, and the pin shaft 210 penetrates the ear plate 101 and the column of the tower crane standard section 100, so as to connect two adjacent tower crane standard sections 100; a vertical pin 220 for limiting the pin shaft 210 is inserted on the shaft body of the pin shaft 210, and the vertical pin 220 penetrates the shaft body of the pin shaft 210, so that the two pin shafts 210 can be synchronously fixed by inserting the vertical pin 220 into the shaft body of the pin shaft 210. , to prevent the pin shaft 210 from being separated from the fixation of the ear plate 101, so that the two adjacent tower crane standard sections 100 shake; a fixing plate 230 for preventing the pin shaft 210 from being separated is fixedly installed on one end of the pin shaft 210 away from the vertical pin 220, and the fixing plate 230 is tightly connected with the clamping rod 420, and a clamping groove is opened on the plate body of the fixing plate 230, so that the clamping rod 420 can be inserted into the clamping groove, so as to further prevent the pin shaft 210 from moving laterally and causing the pin shaft 210 to fall off;

[0031] The anti-recoil device 300 includes an L-shaped steel plate 310 close to the outer end of the connecting device 200, the L-shaped steel plate 310 is placed on the outer side of the tower crane standard section 100 and the pin 210, and the end of the L-shaped steel plate 310 close to the tower crane standard section 100 is fixedly installed with a connecting rod 320 for fixed connection with the tower crane standard section 100, and the L-shaped steel plate 310 and the connecting rod 320 are both provided with through holes, and are connected to the circular holes on the tower crane standard section 100, and the outer end of the L-shaped steel plate 310 is provided with a connecting rod 320 for fixing the L-shaped steel plate 310. The fixing bolts 330 are fixed, and the fixing bolts 330 penetrate the plate bodies of the L-shaped steel plate 310 and the connecting rod 320; thereby, the L-shaped steel plate 310 can be placed outside the tower crane standard section 100 and the pin 210 to prevent the pin 210 from withdrawing, and the connecting rod 320 and the L-shaped steel plate 310 are connected by the fixing bolts 330 and nuts on the inner side of the tower crane standard section 100. After forming a whole, the connecting rod 210 part can be welded to the tower crane standard section 100, and at the same time, it serves as a measure to prevent the pin 210 from falling;

[0032] The fastening device 400 includes a fixed block 410 fixedly installed on the inner end of the tower crane standard section 100, and a clamping rod 420 for fastening the connecting device 200 is movably connected to the block body of the fixed block 410, so that when it is necessary to further prevent the pin shaft 210 from withdrawing from the ear plate 101, the clamping rod 420 can be rotated and the clamping rod 420 can be clamped into the fastening groove of the fixed plate 230, thereby preventing the pin shaft 210 from moving laterally and disengaging from the tower crane standard section 100 and the ear plate 101.

[0033] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A tower crane standard section pin shaft anti-exit baffle, comprising a plurality of tower crane standard sections (100), characterized in that: A connecting device (200) is provided between two adjacent tower crane standard sections (100); an anti-retraction device (300) for preventing the connecting device (200) from being disengaged is provided at the outer end of the connecting device (200); and a fastening device (400) for fastening the connecting device (200) is provided at the inner end of the connecting device (200); The anti-retreat device (300) comprises an L-shaped steel plate (310) closely attached to the outer end of the connecting device (200); a connecting rod (320) for being fixedly connected to the tower crane standard section (100) is fixedly installed at one end of the L-shaped steel plate (310) close to the tower crane standard section (100); a fixing bolt (330) for fixing the L-shaped steel plate (310) is arranged at the outer end of the L-shaped steel plate (310); and the fixing bolt (330) passes through the plate body of the L-shaped steel plate (310) and the connecting rod (320).

2. The tower crane standard section pin anti-exit baffle according to claim 1, characterized in that: The fastening device (400) comprises a fixing block (410) fixedly mounted on the inner side end of the tower crane standard section (100), and a clamping rod (420) for fastening the connecting device (200) is movably connected to the block body of the fixing block (410).

3. The tower crane standard section pin anti-exit baffle according to claim 2, characterized in that: The connecting device (200) comprises a pin shaft (210) penetrating the tower crane standard section (100); a vertical pin (220) for limiting the pin shaft (210) is inserted into the shaft body of the pin shaft (210); the vertical pin (220) penetrates the shaft body of the pin shaft (210); a fixing plate (230) for preventing the pin shaft (210) from being separated is fixedly installed at one end of the pin shaft (210) away from the vertical pin (220); and the fixing plate (230) is fastened and connected to the clamping rod (420).

4. The tower crane standard section pin anti-exit baffle according to claim 3, characterized in that: Ear plates (101) for connecting two adjacent tower crane standard sections (100) in cooperation with the pin shaft (210) are fixedly installed inside and outside the column of the tower crane standard section (100), and there are four groups of ear plates (101), which are distributed in a circular array at the four corners of the tower crane standard section (100).

5. The tower crane standard section pin anti-exit baffle according to claim 1, characterized in that: A connecting rod (002) for supporting the tower crane standard section (100) is fixedly installed between the two columns of the tower crane standard section (100), and there are four connecting rods (002). The four connecting rods (002) are distributed in a circular array between two adjacent columns of the tower crane standard section (100).

6. The tower crane standard section pin anti-exit baffle according to claim 5, characterized in that: A crossbar (001) for supporting the tower crane standard section (100) is fixedly installed between the two columns of the tower crane standard section (100), and there are two crossbars (001), which are symmetrically distributed on the upper and lower sides of each connecting rod (002).

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