Fixing device for lifting hook of truck-mounted crane

Abstract

The utility model discloses a fixing device for a lifting hook of a truck-mounted crane, relates to the field of lifting hook processing equipment, and aims to solve the problems that after the lifting hook of the truck-mounted crane stops working, the lifting hook is not fixedly mounted and is exposed outside, so that the lifting hook is easy to shake, and the lifting hook damages a truck body and nearby people or objects. And the safety is relatively low. Comprising a top plate, a side plate is fixedly mounted on the right side of the lower end of the top plate, a connecting plate is connected to the lower end of the top plate through a steel rope, a connecting column is fixedly mounted at the lower end of the connecting plate, a mounting plate is fixedly mounted at the lower end of the connecting column, a first limiting hole is formed in the right end of the connecting plate, and a second limiting hole is formed in the right end of the mounting plate; a first limiting rod is slidably connected into the first limiting hole, a second limiting rod is slidably connected into the second limiting hole, and the right end of the first limiting rod and the right end of the second limiting rod extend to the outer side of the side plate and are fixedly provided with a first connecting base and a second connecting base correspondingly.

Description

Technical Field

[0001] This utility model relates to the field of crane hook processing equipment, specifically a fixing device for crane hooks on trucks. Background Technology

[0002] A truck-mounted crane, also known as a truck-mounted crane transport vehicle, is a device that uses a hydraulic lifting and telescopic system to lift, rotate, and transport goods. It is usually mounted on a truck.

[0003] For example, Chinese patent CN218224656U, entitled "A Fixing Device for Turning of Lifting Hooks," includes a device body. A right fixing device is located at the right end of the device body, and a left fixing device is located at the left end. A hook is fixedly connected to both the left and right fixing devices. A motor is located on the right fixing device, and a rotating shaft is located at the left end of the motor. A turntable is fixedly connected to the left end of the rotating shaft, and a connecting rod is fixedly connected to the left end of the turntable. A connecting groove is located at the right end of the hook, and the connecting rod is connected to the connecting groove via a threaded connection. This fixing device for turning of lifting hooks, through the cooperation of the connecting rod and the locking block, not only connects and fixes the hook but also does not obstruct the hook surface, thus avoiding hindering the processing of the hook surface. Simultaneously, the motor drives the hook to achieve automated rotation and flipping, facilitating its use.

[0004] While the aforementioned existing technology can achieve the fixation of the crane hook, in actual use, after the crane hook stops working, the lack of a fixed installation for the hook, coupled with the exposed hook, makes it prone to swaying, which can cause damage to the crane body and nearby people or objects, resulting in low safety. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing device for the hook of a truck-mounted crane, so as to solve the problem that after the hook of the truck-mounted crane stops working, due to the lack of a fixed installation for the hook and the hook being exposed, the hook is prone to swaying, which may cause damage to the vehicle body and nearby people or objects, resulting in low safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for a truck-mounted crane hook, comprising a top plate, a side plate fixedly installed on the right side of the lower end of the top plate, a connecting plate connected to the lower end of the top plate by a steel rope, a connecting column fixedly installed on the lower end of the connecting plate, and an mounting plate fixedly installed on the lower end of the connecting column. A limiting hole one is opened on the right end of the connecting plate, and a limiting hole two is opened on the right end of the mounting plate. A limiting rod one is slidably connected in the limiting hole one, and a limiting rod two is slidably connected in the limiting hole two. The right ends of the limiting rod one and the limiting rod two extend to the outside of the side plate and are respectively fixedly installed with connecting seats one and two. A pull plate is connected to the right ends of the connecting seats one and the connecting seats two.

[0007] Preferably, a spring is sleeved on the surface of the first limiting rod, one end of the spring is fixedly connected to the side plate, and the other end of the spring is fixedly connected to the first connecting seat. A spring is sleeved on the surface of the second limiting rod, one end of the spring is fixedly connected to the side plate, and the other end of the spring is fixedly connected to the second connecting seat.

[0008] Preferably, a rubber block is fixedly installed on the upper end of the top plate, a movable seat is fixedly installed on the upper end of the rubber block, protective plates are fixedly installed on both the front and rear sides of the lower end of the top plate, the right ends of the two protective plates are fixedly connected to the side plate, a drive motor is fixedly installed on the right end of the side plate, a control board is fixedly installed on the output end of the drive motor, and the control board is compatible with the pull plate.

[0009] Preferably, slide rails are fixedly installed at both the front and rear ends of the mounting plate, and limit plates are fixedly installed at both the left and right ends of the slide rails. The limit plates and the mounting plate are fixedly connected, and sliders are slidably connected at both the left and right ends of each slide rail.

[0010] Preferably, the lower end of the mounting plate is provided with a double-ended threaded rod, and a rocker arm is fixedly installed on the left end of the double-ended threaded rod. The threads at both ends of the double-ended threaded rod are opposite and have equal pitch. Threaded blocks are threaded to both the left and right ends of the double-ended threaded rod, and the upper end of the threaded block is fixedly connected to the slider.

[0011] Preferably, a mounting base is fixedly installed at the lower end of the threaded block, a locking tube is fixedly installed at the right end of the mounting base on the left end, and a locking rod is fixedly installed at the left end of the mounting base on the right end, wherein the locking tube and the locking rod are adapted to each other.

[0012] Preferably, the lower end of the mounting base is provided with a crane hook, and the upper end of the crane hook is fixedly installed with a locking post. The inner side of the locking post is provided with a locking groove, and the locking groove and the locking tube are compatible.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, after the crane hook stops working, the hook can be pulled upward by the steel rope and moved to the inside of the side plate and the protective plate to avoid the hook being exposed and swaying. At the same time as the hook is retracted, the drive motor drives the control plate to rotate, thereby driving the pull plate to move and causing the first and second limit rods to be pulled out. Then, when the hook is retracted into the protective plate, the control plate moves to the outside of the pull plate. Then, under the action of the first and second springs, the first and second limit rods reset and are inserted back into the first and second limit holes respectively to reinforce the connecting plate and the mounting plate and increase the stability of the device.

[0015] (2) In this utility model, when the hook is damaged, the double-headed threaded rod can be rotated by rotating the rocker arm, so that the threaded block moves along the thread direction, so that the locking tube and the locking rod are separated, and the connecting column and the locking tube are separated, so that the personnel can remove the damaged hook and replace it. After the replacement is completed, the rocker arm is rotated again, so that the double-headed threaded rod rotates, and the two threaded blocks that are threadedly connected to the double-headed threaded rod drive the slider to slide along the slide rail direction, and the two mounting seats drive the locking tube and the locking rod to move into the locking groove and lock each other, so as to realize the installation of the hook. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a fixing device for a truck-mounted crane hook according to the present invention. Figure 1 ;

[0017] Figure 2 This is a three-dimensional structural diagram of a fixing device for a truck-mounted crane hook according to the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the planar structure of a fixing device for a truck-mounted crane hook according to the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of a hook for fixing a truck-mounted crane hook according to the present invention. Figure 1 ;

[0020] Figure 5 This is a three-dimensional structural diagram of a hook for fixing a truck-mounted crane hook according to the present invention. Figure 2 .

[0021] In the diagram: 1. Top plate; 2. Rubber block; 3. Moving seat; 4. Side plate; 5. Connecting plate; 6. Connecting column; 7. Mounting plate; 8. Slide rail; 9. Limiting plate; 10. Double-ended threaded rod; 11. Mounting seat; 12. Crane hook; 13. Engaging column; 14. Protective plate; 21. Steel rope; 41. Pull plate; 42. Drive motor; 43. Control board; 51. Limiting hole one; 52. Limiting rod one; 53. Connecting seat one; 54. Spring one; 71. Limiting hole two; 72. Limiting rod two; 73. Connecting seat two; 74. Spring two; 81. Slider; 101. Rocker arm; 102. Threaded block; 111. Engaging tube; 112. Engaging rod; 131. Engaging groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-5 This utility model provides an embodiment of a fixing device for a truck-mounted crane hook, including a top plate 1, a side plate 4 fixedly installed on the lower right side of the top plate 1, and a connecting plate 5 connected to the lower end of the top plate 1 via a steel cable 21. During operation, the hook can be raised and lowered by the movement of the steel cable 21, and shock absorption is achieved by setting rubber blocks 2. A connecting column 6 is fixedly installed on the lower end of the connecting plate 5, and an mounting plate 7 is fixedly installed on the lower end of the connecting column 6. A limit hole 51 is provided on the right end of the connecting plate 5, and a limit hole 71 is provided on the right end of the mounting plate 7. The limit hole 51... 1. Limiting hole 51 and limiting hole 2 71 facilitate the limiting of the connecting plate 5 and the mounting plate 7 by personnel. Limiting rod 52 is slidably connected in limiting hole 1 51 and limiting rod 72 is slidably connected in limiting hole 2 71. The right ends of limiting rod 1 52 and limiting rod 2 72 extend to the outside of side plate 4 and are respectively fixedly installed with connecting seat 1 53 and connecting seat 2 73. The right ends of connecting seat 1 53 and connecting seat 2 73 are connected to pull plate 41. By setting limiting rod 1 52 and limiting rod 2 72 and engaging with limiting hole 1 51 and limiting hole 2 71, the hook is fixed.

[0024] Please see Figure 2 , Figure 3 and Figure 4A spring 54 is sleeved on the surface of limit rod 52. One end of spring 54 is fixedly connected to side plate 4, and the other end of spring 54 is fixedly connected to connecting seat 53. A spring 74 is sleeved on the surface of limit rod 72. One end of spring 74 is fixedly connected to side plate 4, and the other end of spring 74 is fixedly connected to connecting seat 73. By setting springs 54 and 74, the reset of limit rods 52 and 72 is controlled, increasing the stability of the device. The upper end of top plate 1 is fixed. A rubber block 2 is fixedly installed, and a movable seat 3 is fixedly installed on the upper end of the rubber block 2. Protective plates 14 are fixedly installed on both the front and rear sides of the lower end of the top plate 1. The right ends of the two protective plates 14 are fixedly connected to the side plates 4. A drive motor 42 is fixedly installed on the right end of the side plates 4. A control board 43 is fixedly installed on the output end of the drive motor 42. The control board 43 is compatible with the pull plate 41. By setting the protective plates 14, the hook is prevented from being exposed, thus avoiding swaying and causing damage to people or things around it, and increasing safety.

[0025] Please see Figure 1 , Figure 3 and Figure 5 The mounting plate 7 has slide rails 8 fixedly installed at both its front and rear ends, and limit plates 9 fixedly installed at both its left and right ends. The limit plates 9 are fixedly connected to the mounting plate 7. Each slide rail 8 has a slider 81 slidably connected to both its left and right ends. The lower end of the mounting plate 7 is provided with a double-ended threaded rod 10. A rocker arm 101 is fixedly installed at the left end of the double-ended threaded rod 10. The threads at both ends of the double-ended threaded rod 10 are opposite and have equal pitch. Threaded blocks 102 are threadedly connected to both ends of the double-ended threaded rod 10. By setting the double-ended threaded rod 10, the two threaded blocks 102 can move along the thread direction, facilitating subsequent work by personnel. The upper end of 2 is fixedly connected to the slider 81. The lower end of the threaded block 102 is fixedly installed with a mounting base 11. The right end of the left mounting base 11 is fixedly installed with a locking tube 111. The left end of the right mounting base 11 is fixedly installed with a locking rod 112. The locking tube 111 and the locking rod 112 are compatible. The lower end of the mounting base 11 is provided with a crane hook 12. The upper end of the crane hook 12 is fixedly installed with a locking column 13. The inner side of the locking column 13 is provided with a locking groove 131. The locking groove 131 and the locking tube 111 are compatible. By rotating the rocker arm 101, the double-headed threaded rod 10 is rotated, which makes it easy for personnel to disassemble and install the crane hook 12.

[0026] Working principle: After the crane stops working, the steel rope 21 retracts the crane hook 12 to the inside of the two protective plates 14, and the crane hook 12 is limited by the first limit rod 52 and the second limit rod 72 to achieve the fixation of the device.

[0027] When the crane hook 12 retracts to the inside of the two protective plates 14, the drive motor 42 operates to drive the control plate 43 to rotate, causing the control plate 43 to move the pull plate 41 outward. This causes the connecting seat 1 53 and the connecting seat 2 73 to pull out the limiting rod 1 52 and the limiting rod 2 72. After the crane hook 12 retracts to the designated position, the control plate 43 moves to the outside of the pull plate 41. Then, under the action of the spring 1 54 and the spring 2 74, the limiting rod 1 52 and the limiting rod 2 72 reset and insert back into the limiting hole 1 51 and the limiting hole 2 71, thereby fixing the crane hook 12 and increasing the stability of the device.

[0028] When the crane hook 12 is damaged, the rocker arm 101 can be rotated to rotate the double-headed threaded rod 10, causing the two threaded blocks 102 to move along the thread direction and simultaneously drive the slider 81 to move along the slide rail 8, thereby separating the locking tube 111 and the locking rod 112, and simultaneously pulling the locking tube 111 out of the locking post 13, making it easier for personnel to remove and replace the crane hook 12. Then, the rocker arm 101 is rotated in the opposite direction to move the two threaded blocks 102 along the thread direction to control the locking tube 111 and the locking rod 112 to engage, and to make the locking tube 111 engage with the locking groove 131, thereby completing the replacement of the crane hook 12 and increasing the flexibility of the device.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A fixing device for a truck-mounted crane hook, comprising a top plate (1), characterized in that: A side plate (4) is fixedly installed on the right side of the lower end of the top plate (1). A connecting plate (5) is connected to the lower end of the top plate (1) by a steel rope (21). A connecting column (6) is fixedly installed on the lower end of the connecting plate (5). An installation plate (7) is fixedly installed on the lower end of the connecting column (6). A limit hole (51) is opened on the right end of the connecting plate (5). A limit hole (71) is opened on the right end of the installation plate (7). A limit rod (52) is slidably connected in the limit hole (51). A limit rod (72) is slidably connected in the limit hole (71). The right ends of the limit rod (52) and the limit rod (72) extend to the outside of the side plate (4) and are respectively fixedly installed with a connecting seat (53) and a connecting seat (73). A pull plate (41) is connected to the right ends of the connecting seat (53) and the connecting seat (73).

2. The fixing device for a truck-mounted crane hook according to claim 1, characterized in that: The surface of the limiting rod one (52) is fitted with a spring one (54), one end of the spring one (54) is fixedly connected to the side plate (4), and the other end of the spring one (54) is fixedly connected to the connecting seat one (53). The surface of the limiting rod two (72) is fitted with a spring two (74), one end of the spring two (74) is fixedly connected to the side plate (4), and the other end of the spring two (74) is fixedly connected to the connecting seat two (73).

3. The fixing device for a truck-mounted crane hook according to claim 1, characterized in that: A rubber block (2) is fixedly installed on the upper end of the top plate (1), and a movable seat (3) is fixedly installed on the upper end of the rubber block (2). Protective plates (14) are fixedly installed on both the front and rear sides of the lower end of the top plate (1). The right ends of the two protective plates (14) are fixedly connected to the side plate (4). A drive motor (42) is fixedly installed on the right end of the side plate (4). A control board (43) is fixedly installed on the output end of the drive motor (42). The control board (43) is compatible with the pull plate (41).

4. A fixing device for a truck-mounted crane hook according to claim 1, characterized in that: The mounting plate (7) is fixedly mounted with slide rails (8) at both the front and rear ends. Limiting plates (9) are fixedly mounted on both the left and right ends of the slide rails (8). The limiting plates (9) and the mounting plate (7) are fixedly connected. Each slide rail (8) is slidably connected with a slider (81) at both the left and right ends.

5. A fixing device for a truck-mounted crane hook according to claim 4, characterized in that: The lower end of the mounting plate (7) is provided with a double-threaded rod (10), and a rocker arm (101) is fixedly installed on the left end of the double-threaded rod (10). The threads at both ends of the double-threaded rod (10) are opposite and have equal pitch. Both the left and right ends of the double-threaded rod (10) are threadedly connected to threaded blocks (102), and the upper end of the threaded blocks (102) is fixedly connected to the slider (81).

6. A fixing device for a truck-mounted crane hook according to claim 5, characterized in that: The lower end of the threaded block (102) is fixedly installed with a mounting base (11), the right end of the mounting base (11) on the left end is fixedly installed with a locking tube (111), and the left end of the mounting base (11) on the right end is fixedly installed with a locking rod (112). The locking tube (111) and the locking rod (112) are compatible.

7. A fixing device for a truck-mounted crane hook according to claim 6, characterized in that: The lower end of the mounting base (11) is provided with a crane hook (12), and the upper end of the crane hook (12) is fixedly installed with a locking column (13). The inner side of the locking column (13) is provided with a locking groove (131), and the locking groove (131) and the locking tube (111) are compatible.

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