Step-changing climbing claw device for jacking tower crane

Abstract

The utility model relates to the technical field of tower crane jacking auxiliary equipment, in particular to a step-changing climbing claw device for tower crane jacking, which comprises a support rod, a first hinge seat is fixedly mounted on a rod body of the support rod, an electric cylinder is hinged to the first hinge seat, a second hinge seat is hinged to the electric cylinder, the second hinge seat is fixedly connected with a square tube, and the square tube is fixedly connected with a base. The square tube is fixedly connected with a climbing joint of the tower crane; supports are fixedly installed at the two ends of the supporting rod, rotatable lug plates are installed on the two sides of each support, grooves are formed in the lug plates, and the grooves are connected with standard knots of the tower crane in a clamped mode. On the basis of the prior art, a matching structure of the supporting rod and the lug plate is additionally arranged, multi-person matching operation is not needed, a single person can control the electric cylinder and adjust the installation position, labor cost is reduced, potential safety hazards are further reduced, and therefore the electric cylinder has very wide application prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane lifting auxiliary equipment, and specifically discloses a step-changing climbing claw device for tower crane lifting. Background Art

[0002] Tower cranes are referred to as tower cranes. They are important lifting equipment in construction sites. The application of tower cranes has brought great convenience to the construction industry. The main body of the tower crane is composed of a tower body, a boom and a base. The tower body is composed of a standard section and a climbing section. The standard section is an important part of the tower crane, mainly composed of multiple sections of steel pipes. The standard section can be assembled and disassembled according to construction needs. Generally speaking, the length and number of standard sections determine the lifting height of the tower crane. The climbing section is connected to the top standard section. The outside of the climbing section is provided with a frame platform for operators to stand. The climbing section is arranged under the tower crane cab. When the tower crane needs to be equipped with a standard section, the climbing section will move vertically along the tower crane, so that the top of the tower crane climbs up to a certain position. The boom of the tower crane will add the standard section and place it inside the climbing section. The newly added standard section is fastened to the original standard section with screws inside the tower crane to achieve the climbing of the climbing section.

[0003] At present, in order to meet the construction requirements, it is necessary to regularly lift the climbing section and increase the number of standard sections of the tower body to achieve the required construction height; At present, the climbing sections of most tower cranes are mainly lifted by electric cylinders, and the guide rods of the electric cylinders can lift the climbing section vertically. In the process of the above-mentioned climbing section lifting operation, at least three operators are required to participate in real time, namely: tower crane driver, electric cylinder operator, and electric cylinder mover; the tower crane driver mainly operates the tower crane boom to place the new standard section on the support platform inside the climbing section; the electric cylinder operator mainly operates the electric cylinder on the sleeve platform, accurately controls the guide rod of the electric cylinder, and lifts the climbing section according to the specified distance; the electric cylinder mover follows the electric cylinder operator, and after the new standard section is added and fixed, the electric cylinder is separated from the original standard section, and the electric cylinder body is fixed to the new standard section, and the electric cylinder guide rod is fixed to the climbing section, so as to facilitate the next lifting operation. It can be seen that the above-mentioned existing technology requires multiple people to cooperate in the operation, and its labor cost is relatively high; and there are high safety hazards when multiple people stand on the sleeve platform at the same time. Utility Model Content

[0004] Aiming at the problems of high labor cost and potential safety hazards in the jacking operation of the climbing section of a tower crane, the utility model provides a step-changing climbing claw device for jacking a tower crane.

[0005] To solve the above problems, the utility model provides the following technical solutions:

[0006] A step-changing climbing claw device for tower crane jacking, including a support rod, on which a first hinge seat is fixedly installed. The first hinge seat is hinged with an electric cylinder, and the electric cylinder is hinged with a second hinge seat. The second hinge seat is fixedly connected with a square pipe, and the square pipe is firmly connected with the climbing section of the tower crane. Both ends of the support rod are fixedly installed with supports. On both sides of the support, rotatable ear plates are installed. Grooves are provided on the ear plates, and the grooves are engaged with the standard section of the tower crane.

[0007] Preferably, a support plate is fixedly installed on the outer side of the standard section, and a card slot is provided on the support plate, and the card slot is engaged with the groove.

[0008] Preferably, the support rod is a C-shaped rod, and a semi-circular groove is provided on the first hinge seat, and the inner wall of the semi-circular groove is firmly connected with the outer wall of the support rod.

[0009] Preferably, a first flat part is provided on the second hinge seat, and the first flat part is firmly connected with the outer wall of the square pipe.

[0010] Preferably, a second flat part is provided on the side of the support, and the second flat part is firmly connected with the end of the support rod. A cylindrical part is provided on the upper part of the support, and both sides of the cylindrical part are rotationally matched with the ear plate.

[0011] Preferably, a through groove is provided inside the cylindrical part, and a rotating rod is rotatably installed in the through groove. The outer wall of the rotating rod is rotationally matched with the inner wall of the through groove, and the outer end of the rotating rod is firmly connected with the ear plate.

[0012] Preferably, a rotating part is provided on the upper part of the ear plate, and a round hole is provided in the rotating part, and the round hole is in interference fit with the rotating rod.

[0013] Preferably, a first guide rod and a second guide rod are installed in the electric cylinder. The first guide rod and the second guide rod are symmetrically installed at both ends of the electric cylinder. The first guide rod and the second guide rod can extend and retract in opposite directions. The end of the first guide rod is hinged with the first hinge seat, and the end of the second guide rod is hinged with the second hinge seat.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the electric cylinder of the present utility model, under the connection action of the first hinge seat and the second hinge seat, the device is assembled between the climbing section and the standard section of the tower crane. It can be clamped with the standard section through the ear plate, tightly connected with the climbing section through the square pipe, and the electric cylinder applies force to the square pipe and the ear plate. Thus, the electric cylinder operator can quickly and flexibly and stably assemble the device with the newly added standard section, so that a single person can control the electric cylinder and adjust the installation position; on the basis of the existing technology, the present utility model reduces the labor cost and further reduces the potential safety hazard by adding a matching structure of a support rod and an ear plate, so it has a very wide application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required to be used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the overall device of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the standard section of the present utility model;

[0019] Figure 3 It is Figure 2 an enlarged schematic diagram of the structure at A of

[0020] Figure 4 It is a schematic structural diagram of the rotating rod installation of the present utility model;

[0021] Figure 5 It is a schematic structural diagram of the through groove of the present utility model;

[0022] Figure 6 It is a schematic structural diagram of the round hole of the present utility model;

[0023] Figure 7 It is a schematic structural diagram of the first guide rod and the second guide rod of the present utility model;

[0024] In the figure: 1. Support rod, 2. First hinge seat, 3. Electric cylinder, 4. Second hinge seat, 5. Square pipe, 6. Support, 7. Ear plate, 8. Groove, 9. Standard section, 10. Support plate, 11. Card slot, 12. Semi-circular groove, 13. First straight part, 14. Second straight part, 15. Cylindrical part, 16. Through groove, 17. Rotating rod, 18. Rotating part, 19. Round hole, 20. First guide rod, 21. Second guide rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the accompanying drawings in the specific embodiments. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0026] This specific embodiment provides a step-changing climbing claw device for tower crane jacking, as Figures 1 - 7 shown; it includes a support rod 1. The support rod 1 is a C-shaped rod. A first hinge seat 2 is fixedly installed on the rod body of the support rod 1. The first hinge seat 2 is provided with a semi-circular groove 12. The inner groove wall of the semi-circular groove 12 is tightly connected to the outer wall of the support rod 1. An electric cylinder 3 is hinged to the first hinge seat 2. A first guide rod 20 and a second guide rod 21 are installed in the electric cylinder 3. The first guide rod 20 and the second guide rod 21 can both telescopically slide inside the electric cylinder 3. The guide rod end of the first guide rod 20 faces the support rod 1 and is hinged to the first hinge seat 2. The guide rod end of the second guide rod 21 faces away from the support rod 1 and is hinged to a second hinge seat 4. A first flat part 13 is provided on the second hinge seat 4. A square pipe 5 is tightly connected to the end face of the first flat part 13. The square pipe 5 is tightly connected to the climbing section of the tower crane.

[0027] Both ends of the support rod 1 are fixedly installed with supports 6. A second flat part 14 is provided on the side of the support 6. The second flat part 14 is tightly connected to the support rod 1. A cylindrical part 15 is provided on the upper part of the support 6. A through groove 16 is opened inside the cylindrical part 15. A rotating rod 17 is rotatably installed in the through groove 16. The outer wall of the rotating rod 17 is rotatably matched with the inner wall of the through groove 16. Both outer ends of the rotating rod 17 extend out of the through groove 16 and are tightly connected with ear plates 7. A rotating part 18 is provided on the upper part of the ear plate 7. A round hole 19 is opened inside the rotating part 18. The inner wall of the round hole 19 is tightly connected to the outer wall of the rotating rod 17, so that the round hole 19 and the rotating rod 17 are in interference fit. By setting the matching structure of the rotating rod 17 and the round hole 19, the ear plate 7 can be rotated outside the support 6, so as to appropriately adjust the arrangement position of the ear plate 7.

[0028] A groove 8 is opened on the ear plate 7. The groove 8 is arranged on the other side of the round hole 19. The groove 8 is a square groove. A support plate 10 is tightly installed on the outside of the standard section 9 of the tower crane. A clamping groove 11 is opened on the support plate 10. The groove 8 is clamped with the clamping groove 11, so that the support plate 10 effectively supports the ear plate 7, and further makes the support rod 1 stably arranged outside the standard section 9, so as to effectively support the electric cylinder 3.

[0029] The working principle of the utility model is as follows:

[0030] Before the jacking operation of the tower crane climbing section, the square pipe 5 is firmly connected to the climbing section, and the ear plate 7 is placed on the support plate 10 through the matching structure of the groove 8 and the clamping groove 11. During the jacking operation of the tower crane climbing section, the electro-cylinder operator starts the electro-cylinder 3, so that the second guide rod 21 stretches out along the cylinder body of the electro-cylinder 3, thereby applying a force to the second hinge seat 4, and the square pipe 5 will jack up the climbing section; after the climbing section is jacked up to a specified distance (this distance is greater than the height of a single standard section 9), the tower crane driver operates the boom, places the newly added standard section on the support platform inside the climbing section, and after firmly connecting the newly added standard section to the original standard section and the climbing section, the electro-cylinder operator starts the electro-cylinder 3, so that the first guide rod 20 contracts inward along the cylinder body of the electro-cylinder 3. After rotating the rotating rod 17, the ear plate 7 is disengaged from the support plate 10. The electro-cylinder operator continues to control the first guide rod 20, thereby connecting the ear plate 7 to the newly added standard section and preparing for the next jacking operation of the climbing section.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A step-changing climbing claw device for tower crane jacking, comprising a support rod (1), characterized in that: A first hinged seat (2) is fixedly mounted on the rod body of the support rod (1), the first hinged seat (2) is hingedly mounted with an electric cylinder (3), the electric cylinder (3) is hingedly mounted with a second hinged seat (4), the second hinged seat (4) is fixedly connected with a square tube (5), and the square tube (5) is tightly connected to the climbing section of the tower crane; supports (6) are fixedly mounted on both ends of the support rod (1), rotatable ear plates (7) are mounted on both sides of the supports (6), and grooves (8) are provided on the ear plates (7), and the grooves (8) are snap-fitted with the standard section (9) of the tower crane.

2. The step-changing climbing claw device for tower crane lifting according to claim 1 is characterized in that: A support plate (10) is fixedly mounted on the outer side of the standard section (9), and a clamping groove (11) is provided on the support plate (10), and the clamping groove (11) is clamped with the groove (8).

3. The step-changing climbing claw device for tower crane lifting according to claim 1 is characterized in that: The support rod (1) is a C-shaped rod, and a semicircular groove (12) is provided on the first hinge seat (2). The inner groove wall of the semicircular groove (12) is tightly connected to the outer wall of the support rod (1).

4. The step-changing climbing claw device for tower crane lifting according to claim 1 is characterized in that: The second hinge seat (4) is provided with a first straight portion (13), and the first straight portion (13) is firmly connected to the outer wall of the square tube (5).

5. The step-changing climbing claw device for tower crane lifting according to claim 1 is characterized in that: The side of the support (6) is provided with a second straight portion (14), which is tightly connected to the end of the support rod (1). The upper part of the support (6) is provided with a cylindrical portion (15), and the two sides of the cylindrical portion (15) are rotatably matched with the ear plate (7).

6. The step-changing climbing claw device for tower crane lifting according to claim 5 is characterized in that: A through slot (16) is provided inside the cylindrical portion (15), a rotating rod (17) is rotatably mounted inside the through slot (16), an outer wall of the rotating rod (17) is rotatably matched with an inner wall of the through slot (16), and an outer end portion of the rotating rod (17) is tightly connected to the ear plate (7).

7. The step-changing climbing claw device for tower crane lifting according to claim 6 is characterized in that: A rotating part (18) is arranged on the upper part of the ear plate (7), a circular hole (19) is provided in the rotating part (18), and the circular hole (19) is interference-fitted with the rotating rod (17).

8. The step-changing climbing claw device for tower crane lifting according to claim 1 is characterized in that: A first guide rod (20) and a second guide rod (21) are installed in the electric cylinder (3). The first guide rod (20) and the second guide rod (21) are symmetrically installed at two ends of the electric cylinder (3). The first guide rod (20) and the second guide rod (21) can be telescopic in opposite directions. The end of the first guide rod (20) is hinged to the first hinge seat (2), and the end of the second guide rod (21) is hinged to the second hinge seat (4).

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