Tower crane with loading and unloading structure

Abstract

The utility model discloses a tower crane with a loading and unloading structure, which comprises a mounting seat and a first tower body, and the first tower body is mounted at the upper end of the mounting seat; the transverse supporting rod is arranged in the first tower body, a second annular groove is formed in the lower end of the first tower body, a positioning bolt penetrates through the interior of the second annular groove, a third annular groove is formed in the upper end of the first tower body, an annular plug pin penetrates through the interior of the third annular groove, and a fourth annular groove is connected to the upper end of the annular plug pin; a second tower body is fixed to the inner end of the fourth annular groove, and a nut is installed at the lower end of the annular plug pin. And the third tower body is mounted at the upper end of the second tower body. The tower crane with the loading and unloading structure is stable in structure, convenient to disassemble and assemble and capable of being stacked and heightened at will, the connection state of the crane is reasonably, simply and conveniently arranged at different positions in the device, and the intelligence and safety of the crane are conveniently improved to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, and particularly relates to a tower crane with a loading and unloading structure. Background Technique

[0002] A tower crane refers to a rotating crane with a jib installed on the upper part of a tall tower body. It has a large working space and is mainly used for the vertical and horizontal transportation of materials and the installation of building components in building construction. It consists of three parts: a metal structure, a working mechanism, and an electrical system.

[0003] A tower crane provided by the publication number CN 103482499 B. The tower crane includes a jib and a counter jib connected to the jib. The tower crane further includes a handrail part, and the handrail part is arranged on the jib and extends towards the counter jib. The technical solution of the present invention can improve the safety of the operator when walking at the root of the jib.

[0004] The above-mentioned existing technical solutions have the following defects: The tower crane with a loading and unloading structure has a loose structure, is inconvenient to disassemble and assemble, cannot be stacked and increased in height at will, the settings of the connection state of the crane at different positions in the device are unreasonable, and the intelligence and safety of the crane cannot be improved. Therefore, the utility model provides a tower crane with a loading and unloading structure to solve the above-mentioned problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a tower crane with a loading and unloading structure to solve the problems that the tower crane with a loading and unloading structure has a loose structure, is inconvenient to disassemble and assemble, cannot be stacked and increased in height at will, the settings of the connection state of the crane at different positions in the device are unreasonable, and the intelligence and safety of the crane cannot be improved as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A tower crane with a loading and unloading structure includes a mounting base and a first tower body, and the first tower body is installed at the upper end of the mounting base;

[0007] It further includes:

[0008] A transverse support rod, which is arranged inside the first tower body. A second annular groove is installed at the lower end of the first tower body, and a positioning bolt penetrates through the inside of the second annular groove. A third annular groove is arranged at the upper end of the first tower body, and an annular plug pin penetrates through the inside of the third annular groove. The upper end of the annular plug pin is connected with a fourth annular groove, the inner end of the fourth annular groove is fixed with a second tower body, and a nut is installed at the lower end of the annular plug pin;

[0009] The third tower body is installed at the upper end of the second tower body. A first annular groove is provided at the upper end of the third tower body, and a limit seat is installed at the upper end of the first annular groove. A fixing bolt penetrates through the inner end of the limit seat. A return spring is installed at the upper end of the limit seat, and a right clamping arm and a left clamping arm are arranged inside the return spring. The left clamping arm is arranged at the left end of the right clamping arm. Positioning keys are arranged inside the right clamping arm and the left clamping arm, and a lifting arm is connected to the upper ends of the positioning keys.

[0010] Preferably, the third annular groove is symmetrically arranged about the central axis of the first tower body, and the third annular groove and the fourth annular groove are connected through a ring pin penetrating through.

[0011] Preferably, the ring pin has a "U" - shaped structure with the upper ends connected, and the lower end of the ring pin is connected to the nut by a threaded manner.

[0012] Preferably, both the limit seat and the first annular groove are connected by threaded connection with the fixing bolt, and the return spring is symmetrically arranged about the central axis of the limit seat.

[0013] Preferably, the right clamping arm and the left clamping arm form a rotating structure, and the lower end of the positioning key is clamped between the right clamping arm and the left clamping arm.

[0014] Preferably, the right clamping arm, the left clamping arm and the return spring form an elastic structure, and the right clamping arm and the left clamping arm are symmetrically arranged about the central axis of the limit seat.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The tower crane with a loading and unloading structure has a stable structure, is convenient for disassembly and assembly, can be stacked and heightened at will, the connection states of the crane at different positions in the device are set reasonably and simply, which is convenient for maximizing the intelligence and safety of the crane;

[0016] 1. The first tower body, the second tower body and the third tower body are provided. The first tower body, the second tower body and the third tower body are all connected and fixed by ring pins and nuts. The structure is stable, the disassembly and assembly are convenient, and it can be heightened or lowered at will, which is convenient for stacking;

[0017] 2. The ring pin, the fourth annular groove and the nut are provided. When installing the tower crane, the first tower body can be placed at the upper end of the mounting seat, and the positioning bolt is drilled into the interior of the mounting seat through the second annular groove to achieve stable connection, so that the device can save costs while working reasonably;

[0018] 3. The lifting arm, the right clamping arm and the return spring are provided. The connection structure is simple and convenient. The quick - release clamping limit method is convenient for the connection and adjustment of the lifting arm. The connection states of the crane at different positions in the device are set reasonably and simply, which is convenient for maximizing the intelligence and safety of the crane. Description of the Drawings

[0019] Figure 1 This is the front view structural schematic diagram of the present utility model;

[0020] Figure 2 This is the top view structural schematic diagram of the present utility model;

[0021] Figure 3 This is the Figure 1 amplified schematic diagram of the structure at position A in the present utility model;

[0022] Figure 4 This is the Figure 2 amplified schematic diagram of the structure at position B in the present utility model;

[0023] Figure 5 This is the schematic diagram of the connection structure between the third tower body and the boom of the present utility model.

[0024] In the figure: 1, mounting seat; 2, first tower body; 3, horizontal support rod; 4, first annular groove; 5, second annular groove; 6, positioning bolt; 7, third annular groove; 8, annular pin; 9, fourth annular groove; 10, second tower body; 11, nut; 12, third tower body; 13, boom; 14, positioning key; 15, right clamping arm; 16, left clamping arm; 17, return spring; 18, limit seat; 19, fixing bolt. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5 , the present utility model provides a technical solution: a tower crane with a loading and unloading structure, including a mounting seat 1, a first tower body 2, a horizontal support rod 3, a first annular groove 4, a second annular groove 5, a positioning bolt 6, a third annular groove 7, an annular pin 8, a fourth annular groove 9, a second tower body 10, a nut 11, a third tower body 12, a boom 13, a positioning key 14, a right clamping arm 15, a left clamping arm 16, a return spring 17, a limit seat 18 and a fixing bolt 19.

[0027] The horizontal support rod 3 is arranged inside the first tower body 2. The lower end of the first tower body 2 is provided with a second annular groove 5, and a positioning bolt 6 penetrates through the inside of the second annular groove 5. The upper end of the first tower body 2 is provided with a third annular groove 7, and an annular pin 8 penetrates through the inside of the third annular groove 7. And the upper end of the annular pin 8 is connected with a fourth annular groove 9. The inner end of the fourth annular groove 9 is fixed with a second tower body 10. The lower end of the annular pin 8 is provided with a nut 11;

[0028] The third tower body 12 is installed at the upper end of the second tower body 10. A first annular groove 4 is provided at the upper end of the third tower body 12. A limit seat 18 is installed at the upper end of the first annular groove 4. A fixing bolt 19 penetrates through the inner end of the limit seat 18. A return spring 17 is installed at the upper end of the limit seat 18. A right clamping arm 15 and a left clamping arm 16 are arranged inside the return spring 17. The left clamping arm 16 is arranged at the left end of the right clamping arm 15. A positioning key 14 is arranged inside the right clamping arm 15 and the left clamping arm 16. The upper end of the positioning key 14 is connected to a boom 13.

[0029] As Figure 1 、 Figure 2 and Figure 3 shown, the third annular groove 7 is symmetrically arranged about the central axis of the first tower body 2. The third annular groove 7 and the fourth annular groove 9 are connected through a ring pin 8. The ring pin 8 has a "U" - shaped structure with the upper ends connected. The lower end of the ring pin 8 is connected to a nut 11 in a threaded manner. When installing this tower crane, the first tower body 2 can be placed on the upper end of the mounting base 1, and the positioning bolt 6 is drilled into the interior of the mounting base 1 through the second annular groove 5 to achieve a firm connection. Then, the second tower body 10 is placed on the upper end of the first tower body 2, aligning the third annular groove 7 and the fourth annular groove 9 vertically. The ring pin 8 is sequentially penetrated from top to bottom, and the nut 11 is screwed and installed on the lower end of the ring pin 8 to fix the device. The second tower body 10 and the third tower body 12 are installed and fixed in the same way. Sequentially upwards until the boom 13 needs to be installed. The first tower body 2, the second tower body 10, and the third tower body 12 are all connected and fixed by the ring pin 8 and the nut 11. The structure is firm, the disassembly and assembly are convenient, it can be arbitrarily heightened or lowered, and it is convenient for stacking.

[0030] As Figure 4 and Figure 5As shown, the limit seat 18 and the first annular groove 4 are both threadedly connected by fixing bolts 19, and the return spring 17 is symmetrically arranged about the central axis of the limit seat 18. The right clamping arm 15 and the left clamping arm 16 form a rotating structure, and the lower end of the positioning key 14 is clamped between the right clamping arm 15 and the left clamping arm 16. The right clamping arm 15, the left clamping arm 16 and the return spring 17 form an elastic structure, and the right clamping arm 15 and the left clamping arm 16 are symmetrically arranged about the central axis of the limit seat 18. The upper boom 13 of the tower crane can be connected to the third tower body 12 by means of a buckle. During use, the fixing bolt 19 is threadedly fixed to the first annular groove 4, and then the lower end of the positioning key 14 can be aligned between the right clamping arm 15 and the left clamping arm 16 and pressed downward to be clamped between the right clamping arm 15 and the left clamping arm 16. At the same time, the return spring 17 presses the clamping arms in the opposite direction when the right clamping arm 15 and the left clamping arm 16 turn outwards, so as to facilitate further fixing and limiting of the device. The connection structure is simple and convenient, and the quick-release clamping limit method is convenient for the connection and adjustment of the boom 13. The setting of the connection state of the crane at different positions in the device is reasonable and simple, which is convenient for maximizing the intelligence and safety of the crane, and enables the device to save costs while working reasonably.

[0031] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tower crane with a loading and unloading structure, comprising a mounting base (1) and a first tower body (2), wherein the first tower body (2) is mounted on the upper end of the mounting base (1); It is characterized in that Also includes: A transverse support rod (3) is arranged inside the first tower body (2); a second annular groove (5) is installed at the lower end of the first tower body (2), and a positioning bolt (6) is passed through the second annular groove (5); a third annular groove (7) is arranged at the upper end of the first tower body (2), and an annular latch (8) is passed through the third annular groove (7), and the upper end of the annular latch (8) is connected to a fourth annular groove (9); the second tower body (10) is fixed to the inner end of the fourth annular groove (9), and a nut (11) is installed at the lower end of the annular latch (8); The third tower body (12) is mounted on the upper end of the second tower body (10); the upper end of the third tower body (12) is provided with a first annular groove (4); the upper end of the first annular groove (4) is provided with a limit seat (18); the inner end of the limit seat (18) is penetrated by a fixing bolt (19); the upper end of the limit seat (18) is provided with a reset spring (17); the reset spring (17) is provided with a right clamp arm (15) and a left clamp arm (16); the left clamp arm (16) is provided at the left end of the right clamp arm (15); the right clamp arm (15) and the left clamp arm (16) are provided with a positioning key (14); the upper end of the positioning key (14) is connected to the lifting arm (13).

2. A tower crane with a loading and unloading structure according to claim 1, characterized in that: The third annular groove (7) is arranged symmetrically with respect to the central axis of the first tower body (2), and the third annular groove (7) and the fourth annular groove (9) are connected through an annular latch (8).

3. A tower crane with a loading and unloading structure according to claim 1, characterized in that: The annular latch (8) is in a "U"-shaped structure with the upper ends connected, and the lower end of the annular latch (8) is connected to the nut (11) in a threaded manner.

4. A tower crane with a loading and unloading structure according to claim 1, characterized in that: The limiting seat (18) and the first annular groove (4) are both threadedly connected via a fixing bolt (19), and the return spring (17) is disposed symmetrically about the central axis of the limiting seat (18).

5. The tower crane with a loading and unloading structure according to claim 1, characterized in that: The right clamp arm (15) and the left clamp arm (16) form a rotating structure, and the lower end of the positioning key (14) is clamped between the right clamp arm (15) and the left clamp arm (16).

6. The tower crane with a loading and unloading structure according to claim 1, characterized in that: The right clamp arm (15), the left clamp arm (16) and the return spring (17) form an elastic structure, and the right clamp arm (15) and the left clamp arm (16) are arranged symmetrically about the central axis of the limiting seat (18).

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