Simple protection structure of tower lifting hook

Abstract

The utility model relates to a simple protection structure of a tower lifting hook, which belongs to the technical field of tower lifting hooks and comprises a tower lifting hook body, a connecting hole is arranged on the front side of the tower lifting hook body, a connecting rod is arranged in the connecting hole, a limiting rod is arranged in the tower lifting hook body, and the front side and the back side of the connecting rod are respectively attached to two ends of the limiting rod. A stop block is fixedly connected to the tower lifting hook body, a balance weight plate is placed on the surface of the tower lifting hook body, first supporting rods are fixedly connected to the front face and the back face of the balance weight plate, and two second supporting rods are fixedly connected to the side face, close to the tower lifting hook body, of the balance weight plate. According to the simple protection structure of the tower lifting hook, the limiting rod and the connecting rod are matched to form a buckle shape and are clamped into the hook, so that the unhooking prevention effect is achieved, the device is placed on the tower lifting hook body, the hook is clamped through gravity, safety in the construction operation process is guaranteed, the simple protection structure is widely applied to various construction sites, safety and stability of a tower crane are greatly improved, and the safety of the tower crane is improved. And the accident occurrence probability is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane hooks, in particular to a simple protection structure for tower crane hooks. Background Technique

[0002] The tower crane is abbreviated as tower crane, also known as tower hoist, originated in Western Europe. It is a rotating crane with a boom 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: metal structure, working mechanism and electrical system. The metal structure includes tower body, boom and base, etc.

[0003] The tower crane is a commonly used lifting equipment in the construction industry. Its hook is an important part of the tower crane. In the actual use process, due to various reasons, the hook may be disengaged, resulting in accidents. The commonly used device is the insurance card device, but the damage rate is relatively high. Therefore, a simple protection structure for tower crane hooks is proposed to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a simple protection structure for tower crane hooks, which has the advantages of improving the safety and stability during the operation of the tower crane, and solves the problems that the tower crane is a commonly used lifting equipment in the construction industry, its hook is an important part of the tower crane, and in the actual use process, due to various reasons, the hook may be disengaged, resulting in accidents, and the commonly used device is the insurance card device, but the damage rate is relatively high.

[0005] To achieve the above object, the utility model provides the following technical solution: a simple protection structure for tower crane hooks, including the tower crane hook body, a connection hole is opened on the front surface of the tower crane hook body, a connecting rod is placed inside the connection hole, and a limiting rod is placed inside the tower crane hook body.

[0006] The front and back surfaces of the connecting rod are respectively attached to the two ends of the limiting rod. A stop block is fixedly connected to the tower crane hook body. A counterweight plate is placed on the surface of the tower crane hook body. First support rods are fixedly connected to both the front and back surfaces of the counterweight plate. Two second support rods are fixedly connected to the side surface of the counterweight plate close to the tower crane hook body. The two first support rods and the two second support rods are all fixedly connected to the limiting rod. Installation grooves are opened on both the front and back surfaces of the connecting rod.

[0007] A fixing component is arranged between the limiting rod and the connecting rod to fix the connecting rod and the limiting rod.

[0008] A supporting component is arranged on the connecting rod to support the fixing component.

[0009] Further, the connecting rod and the connecting hole are in clearance fit, the limiting rod and the stop block are in contact, the first support rod is located at the bottom of the second support rod, and the counterweight plate is an arc-shaped plate.

[0010] Further, the fixing assembly includes two baffles, the two baffles are respectively placed inside the two installation grooves, two connecting grooves are opened inside the limiting rod, and one end of each of two positioning rods fixedly connected to one side of the two baffles close to the connecting grooves penetrates through the installation groove and extends into the connecting groove. Hinge frames are fixedly connected to the top surface and the bottom surface of the two positioning rods. Four clamping grooves are opened on the limiting rod, and one end of each of four fixing plates hinged to the four hinge frames extends into the clamping grooves. Rubber pads are fixedly connected between the opposite side surfaces of two adjacent fixing plates and the positioning rods.

[0011] Further, the four clamping grooves are respectively located at the top and the bottom of the two connecting grooves, and the connecting grooves are communicated with the clamping grooves.

[0012] Further, the fixing plates are in contact with the clamping grooves, and the four fixing plates are all inclined.

[0013] Further, the support assembly includes two telescopic rods, the two telescopic rods are respectively fixedly connected inside the two installation grooves, the two telescopic rods are respectively fixedly connected to the two baffles, springs respectively sleeved on the outer peripheral walls of the two telescopic rods and fixedly connected to the installation grooves and the baffles are provided, and four positioning grooves are opened inside the connecting rod. One end of each of two positioning plates fixedly connected to the top surface and the bottom surface of the two baffles extends into the positioning grooves.

[0014] Further, the four positioning grooves are respectively located at the top and the bottom of the two installation grooves, and the positioning plates are slidably connected with the positioning grooves.

[0015] Further, the telescopic rod is composed of a sleeve bin and a moving rod. One end of the moving rod penetrates through and extends into the sleeve bin. A limiting block located inside the sleeve bin is fixedly connected to the outer side of the moving rod. A through hole adapted to the moving rod is opened on one side of the sleeve bin.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0017] 1. For this simple protection structure of the tower crane hook, through the cooperation between the limiting rod and the connecting rod, a buckle shape is formed and clamped into the hook, so as to realize the anti-disengagement function of the hook. When the tower crane hook body is placed on this device, it is clamped tightly by gravity, ensuring safety during the construction operation process. It is widely used in various construction sites, greatly improving the safety and stability of the tower crane and reducing the probability of accidents;

[0018] 2. For the simple protection structure of the tower crane hook, the limit rod can achieve its function through simple steel bar welding, reducing the use cost. Through the fit between the fixing plate and the card slot, the connecting rod and the limit rod are fixed, facilitating the disassembly, installation and replacement of the limit rod by the staff. At the same time, under the action of the spring, the fixing plate is supported to improve the stability of the fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a left side view of the limit rod in the structure of the present invention;

[0021] Figure 3 is an enlarged left side view of the internal structure of the connecting rod in the structure of the present invention;

[0022] Figure 4 is Figure 3 an enlarged view of the structure of A in

[0023] Figure 5 is a top view of the baffle in the structure of the present invention.

[0024] In the figure: 1 tower crane hook body, 2 connection hole, 3 limit rod, 4 stop block, 5 first support rod, 6 counterweight plate, 7 second support rod, 8 connecting rod, 9 installation groove, 10 card slot, 11 connection groove, 12 spring, 13 telescopic rod, 14 positioning groove, 15 baffle, 16 positioning plate, 17 rubber pad, 18 positioning rod, 19 hinge frame, 20 fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0026] Embodiment 1: Please refer to Figures 1 to 5 , for the simple protection structure of the tower crane hook in this embodiment, it includes a tower crane hook body 1. A connection hole 2 is opened on the front surface of the tower crane hook body 1. A connecting rod 8 is placed inside the connection hole 2, and a limit rod 3 is placed inside the tower crane hook body 1.

[0027] The front and back surfaces of the connecting rod 8 are respectively in contact with the two ends of the limiting rod 3. A stop block 4 is fixedly connected to the tower crane hook body 1. A counterweight plate 6 is placed on the surface of the tower crane hook body 1. The front and back surfaces of the counterweight plate 6 are both fixedly connected with first support rods 5. The side of the counterweight plate 6 close to the tower crane hook body 1 is fixedly connected with two second support rods 7. The two first support rods 5 and the two second support rods 7 are both fixedly connected to the limiting rod 3. Installation grooves 9 are formed on the front and back surfaces of the connecting rod 8.

[0028] Among them, the connecting rod 8 and the connecting hole 2 are in clearance fit, the limiting rod 3 and the stop block 4 are in contact, the first support rod 5 is located at the bottom of the second support rod 7, and the counterweight plate 6 is an arc-shaped plate.

[0029] It should be noted that the limiting rod 3 is composed of multiple sections of steel bars welded together, reducing the use cost.

[0030] Specifically, the connecting rod 8 is placed into the interior of the connecting hole 2, and the limiting rod 3 is pushed. The limiting rod 3 enters into the interior of the tower crane hook body 1, and then the connecting rod 8 and the limiting rod 3 are in contact. The lifting rope is sleeved on the tower crane hook body 1. Under the action of the clearance fit between the connecting rod 8 and the connecting hole 2 and the counterweight plate 6, the counterweight plate 6 drives the limiting rod 3 to rotate, so that the limiting rod 3 and the stop block 4 are in contact, realizing the anti-unhooking function.

[0031] Embodiment 2: Please refer to Figures 1 to 5 , in this embodiment, on the basis of Embodiment 1, a fixing component is provided between the limiting rod 3 and the connecting rod 8. The fixing component includes two baffles 15. The two baffles 15 are respectively placed in the two installation grooves 9. Two connecting grooves 11 are formed in the interior of the limiting rod 3. One end of a positioning rod 18 fixedly connected to one side of each of the two baffles 15 close to the connecting groove 11 penetrates through the installation groove 9 and extends into the interior of the connecting groove 11. Hinge frames 19 are fixedly connected to the top and bottom surfaces of the two positioning rods 18. Four card slots 10 are formed on the limiting rod 3. One end of a fixing plate 20 extending into the interior of the card slot 10 is hinged to each of the four hinge frames 19. Rubber pads 17 are fixedly connected between the opposite side surfaces of two adjacent fixing plates 20 and the positioning rod 18.

[0032] Among them, the four card slots 10 are respectively located at the top and bottom of the two connecting grooves 11. The connecting grooves 11 and the card slots 10 are communicated. The fixing plate 20 and the card slot 10 are in contact. The four fixing plates 20 are all inclined.

[0033] Specifically, push the fixed plate 20. Under the action of the hinge frame 19, the fixed plate 20 and the positioning rod 18 are in a horizontal position, thereby squeezing the rubber pad 17, pushing the positioning rod 18, moving the baffle 15, making the connecting rod 8 and the limiting rod 3 fit together, resetting the positioning rod 18, inserting the positioning rod 18 into the inside of the connecting groove 11. When the fixed plate 20 corresponds to the clamping groove 10, the rubber pad 17 pushes the fixed plate 20 to reset, the fixed plate 20 is inserted into the inside of the clamping groove 10, and the fixed plate 20 fits with the clamping groove 10 to fix the connecting rod 8 and the limiting rod 3 together.

[0034] Embodiment 3: Please refer to Figures 1 to 5 , in this embodiment, on the basis of Embodiment 1 and Embodiment 2, the connecting rod 8 is provided with a support assembly. The support assembly includes two telescopic rods 13. The two telescopic rods 13 are respectively fixedly connected inside the two mounting grooves 9. The two telescopic rods 13 are respectively fixedly connected to the two baffles 15. Springs 12 fixedly connected to the mounting grooves 9 and the baffles 15 are sleeved on the outer peripheral walls of the two telescopic rods 13. Four positioning grooves 14 are formed inside the connecting rod 8. Positioning plates 16 extending to the inside of the positioning grooves 14 are fixedly connected to the top and bottom of the two baffles 15.

[0035] Among them, the four positioning grooves 14 are respectively located at the top and bottom of the two mounting grooves 9. The positioning plates 16 are slidably connected to the positioning grooves 14. The telescopic rod 13 is composed of a sleeve bin and a moving rod. One end of the moving rod penetrates and extends into the inside of the sleeve bin. A limiting block located inside the sleeve bin is fixedly connected to the outside of the moving rod. A through hole adapted to the moving rod is formed on one side of the sleeve bin.

[0036] Specifically, when the baffle 15 moves, the telescopic rod 13 and the spring 12 are squeezed, causing the telescopic rod 13 and the spring 12 to contract. Through the sliding connection between the positioning plate 16 and the positioning groove 14, the baffle 15 is supported to improve the stability of the baffle 15. When the connecting rod 8 and the limiting rod 3 fit together, under the action of the spring 12, the positioning rod 18 is pushed to reset.

[0037] The working principle of the above embodiments is as follows:

[0038] The connecting rod 8 is placed inside the connecting hole 2. The fixed plate 20 is pushed. Under the action of the hinge frame 19, the fixed plate 20 and the positioning rod 18 are in a horizontal position, thereby squeezing the rubber pad 17. The positioning rod 18 is pushed to move the baffle 15, squeezing the telescopic rod 13 and the spring 12, causing the telescopic rod 13 and the spring 12 to contract. Through the sliding connection between the positioning plate 16 and the positioning groove 14, the baffle 15 is supported to improve the stability of the baffle 15. The limiting rod 3 is pushed, and the limiting rod 3 enters the inside of the tower crane hook body 1, so that the connecting rod 8 and the limiting rod 3 are in contact. Under the action of the spring 12, the positioning rod 18 is pushed to reset, and the positioning rod 18 is inserted into the inside of the connecting groove 11. When the fixed plate 20 corresponds to the clamping groove 10, the rubber pad 17 pushes the fixed plate 20 to reset, and the fixed plate 20 is inserted into the inside of the clamping groove 10. The fixed plate 20 and the clamping groove 10 are in contact to fix between the connecting rod 8 and the limiting rod 3. The lifting rope is sleeved on the tower crane hook body 1. Under the action of the clearance fit between the connecting rod 8 and the connecting hole 2 and the counterweight plate 6, the counterweight plate 6 drives the limiting rod 3 to rotate, so that the limiting rod 3 and the stop block 4 are in contact to achieve the anti-unhooking function.

[0039] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Simple protection structure for tower crane hook, including the tower crane hook body (1), characterized in that: A connection hole (2) is formed in the front surface of the tower crane hook body (1), a connecting rod (8) is placed inside the connection hole (2), and a limiting rod (3) is placed inside the tower crane hook body (1). The front and back surfaces of the connecting rod (8) are respectively in contact with the two ends of the limiting rod (3). A stop block (4) is fixedly connected to the tower crane hook body (1). A counterweight plate (6) is placed on the surface of the tower crane hook body (1). First support rods (5) are fixedly connected to both the front and back surfaces of the counterweight plate (6). Two second support rods (7) are fixedly connected to the side surface of the counterweight plate (6) close to the tower crane hook body (1). The two first support rods (5) and the two second support rods (7) are all fixedly connected to the limiting rod (3). Installation grooves (9) are formed in both the front and back surfaces of the connecting rod (8). A fixing component is arranged between the limiting rod (3) and the connecting rod (8), and a support component is arranged on the connecting rod (8).

2. The simple protection structure of the tower crane hook according to claim 1, characterized in that: The connecting rod (8) and the connection hole (2) are in clearance fit. The limiting rod (3) is in contact with the stop block (4). The first support rod (5) is located at the bottom of the second support rod (7). The counterweight plate (6) is an arc-shaped plate.

3. The simple protection structure of the tower crane hook according to claim 1, characterized in that: The fixing component includes two baffles (15). The two baffles (15) are respectively placed inside the two installation grooves (9). Two connection grooves (11) are formed inside the limiting rod (3). One end of a positioning rod (18) fixedly connected to the side surface of each of the two baffles (15) close to the connection groove (11) penetrates through the installation groove (9) and extends into the connection groove (11). Hinge frames (19) are fixedly connected to both the top and bottom surfaces of the two positioning rods (18). Four card slots (10) are formed in the limiting rod (3). Fixed plates (20) with one end extending into the card slots (10) are hinged to the four hinge frames (19). Rubber pads (17) are fixedly connected between the opposite side surfaces of two adjacent fixed plates (20) and the positioning rod (18).

4. The simple protection structure of the tower crane hook according to claim 3, characterized in that: The four card slots (10) are respectively located at the top and bottom of the two connection grooves (11), and the connection grooves (11) communicate with the card slots (10).

5. The simple protection structure of the tower crane hook according to claim 4, characterized in that: The fixed plates (20) are in contact with the card slots (10), and all four fixed plates (20) are inclined.

6. The simple protection structure of the tower crane hook according to claim 3, characterized in that: The support component includes two telescopic rods (13). The two telescopic rods (13) are respectively fixedly connected inside the two installation grooves (9). The two telescopic rods (13) are respectively fixedly connected to the two baffles (15). Springs (12) respectively fixedly connected to the installation grooves (9) and the baffles (15) are sleeved on the outer peripheral walls of the two telescopic rods (13). Four positioning grooves (14) are formed inside the connecting rod (8). Positioning plates (16) with one end extending into the positioning grooves (14) are fixedly connected to both the top and bottom surfaces of the two baffles (15).

7. The simple protection structure of the tower crane hook according to claim 6, characterized in that: The four positioning grooves (14) are respectively located at the top and bottom of the two installation grooves (9), and the positioning plate (16) is slidably connected to the positioning groove (14).

8. The simple protection structure of the tower crane hook according to claim 7, characterized in that: The telescopic rod (13) consists of a sleeve bin and a moving rod. One end of the moving rod penetrates and extends into the interior of the sleeve bin. A limiting block located inside the sleeve bin is fixedly connected to the outer side of the moving rod. A through hole adapted to the moving rod is provided on one side of the sleeve bin.

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