Anti-overturning lifting device of lorry-mounted crane

Abstract

The utility model discloses a lorry-mounted crane anti-turning lifting device which comprises a truck head, a connecting frame is arranged on the rear side of the truck head, a truck body is arranged on the rear side of the connecting frame, a plurality of sets of wheels are arranged below the truck head and the truck body respectively, a fixing frame is arranged above the connecting frame, a motor is arranged in the connecting frame, and the motor is connected with the truck body. The motor is connected with a fixing frame through a bearing, and limiting rods are arranged on the outer walls of the four sides of the fixing frame correspondingly. According to the anti-overturning lifting device of the lorry-mounted crane, the fixing frame is inserted into the movable groove through the bearing and the limiting rod under the action of the motor to form a rotating structure together with the connecting frame, so that the stability of the fixing frame in the whole rotating process is improved through the slidable limiting rod, and the windproof cover of the device is of a streamline structure; and the wind-proof cover and the cargo boom form a spiral locking structure through a plurality of groups of bolts, so that the influence of external wind power on the cargo boom can be reduced through the streamline wind-proof cover, and the stability of the lifting device in the working process is further improved.

Description

Technical Field

[0001] This utility model relates to the field of truck-mounted crane technology, specifically to a truck-mounted crane anti-tipping lifting device. Background Technology

[0002] A truck-mounted crane, formally known as a truck-mounted crane transport vehicle, is a special vehicle that integrates lifting and transportation functions. It is widely used in municipal construction, coal mining, landscaping, and other infrastructure projects for lifting and transporting construction materials and other equipment. During cargo lifting and transportation, truck-mounted cranes are used to facilitate the handling of larger objects, enabling them to be lifted and moved.

[0003] During operation, truck-mounted cranes use hooks to place the objects to be lifted, and then use the boom and ropes to lift them and move them to the desired location. However, existing truck-mounted cranes rely solely on outriggers for overall support, which can lead to low stability and make it difficult to ensure stability in conditions such as high wind speeds. Therefore, this paper proposes an anti-tipping lifting device for truck-mounted cranes to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-tipping lifting device for truck-mounted cranes, so as to solve the problem mentioned in the background art that the existing truck-mounted cranes, which rely solely on outriggers for overall support during use, are prone to low stability and are difficult to ensure overall stability in situations such as high wind speeds.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a truck-mounted crane anti-tipping lifting device, including a truck head, a connecting frame provided on the rear side of the truck head, and a vehicle body provided on the rear side of the connecting frame. The truck head and the vehicle body are respectively provided with multiple sets of wheels below. The connecting frame is provided with a fixed frame above, and a motor is provided inside the connecting frame. The motor is connected to the fixed frame through a bearing, and the fixed frame is provided with limiting rods on its four outer walls. The outer side of the fixed frame is provided with a movable groove corresponding to the connecting frame, and the other end of the limiting rod is inserted into the movable groove.

[0006] The fixed frame is equipped with a lifting arm on the top, and a telescopic arm is inserted through the other end of the lifting arm. A lifting rope is provided at the other end of the telescopic arm, and a hook is provided at the other end of the lifting rope. A windproof cover is placed on the outside of the lifting arm, and multiple sets of bolts are inserted through the windproof cover. The other end of the bolts is screwed onto the lifting arm.

[0007] The connecting frame and the vehicle body are respectively provided with fixing rods, and the fixing rods are respectively provided with legs at both ends. Multiple sets of spiral holes are opened on the fixing rods between the legs. A support rod is placed on one side of the spiral hole, and a screw is inserted through the upper end of the support rod. The other end of the screw is spiraled into the spiral hole. A rubber suction cup is provided at the lower end of the support rod.

[0008] Preferably, the fixed frame, under the action of the motor, is inserted into the movable slot through bearings and a limiting rod to form a rotating structure with the connecting frame.

[0009] Preferably, the wind shield has a streamlined structure, and the wind shield is connected to the lifting arm by multiple sets of bolts to form a spiral locking structure.

[0010] Preferably, the support rod is an inclined structure, and the support rod is screwed into the helical hole by a screw to form a helical locking structure with the fixed rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The fixed frame of the truck-mounted crane anti-tipping lifting device, under the action of the motor, is inserted into the movable slot through bearings and limit rods to form a rotating structure with the connecting frame. The sliding limit rods increase the stability of the fixed frame during the overall rotation process. The wind shield of the device has a streamlined structure, and the wind shield is connected to the lifting arm through multiple sets of bolts to form a spiral locking structure. The streamlined wind shield can reduce the impact of external wind force on the lifting arm, thereby increasing the stability of the lifting device during operation. The support rod of the device has an inclined structure, and the support rod is screwed into the spiral hole through a screw to form a spiral locking structure with the fixed rod. The inclined support rod assembly and rubber suction cups can further increase the overall stability of the vehicle body, thereby increasing the anti-tipping performance of the truck-mounted crane during operation. Attached Figure Description

[0012] Figure 1 This is a side view of the anti-tipping lifting device for a truck-mounted crane according to the present invention.

[0013] Figure 2 This is a rear view structural diagram of an anti-tipping lifting device for a truck-mounted crane according to the present invention;

[0014] Figure 3 This is a schematic diagram of the windproof cover assembly of an anti-tipping lifting device for a truck-mounted crane according to the present invention;

[0015] Figure 4 This is a top view of the connecting frame assembly of the anti-tipping lifting device for a truck-mounted crane according to the present invention.

[0016] In the diagram: 1. Front of the vehicle, 2. Connecting frame, 3. Vehicle body, 4. Fixing frame, 5. Lifting boom, 6. Limiting rod, 7. Movable groove, 8. Wind shield, 9. Bolt, 10. Fixing rod, 11. Outrigger, 12. Spiral hole, 13. Support rod, 14. Rubber suction cup, 15. Screw. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a truck-mounted crane anti-tipping lifting device, including a truck head 1, a connecting frame 2 provided on the rear side of the truck head 1, and a vehicle body 3 provided on the rear side of the connecting frame 2. The truck head 1 and the vehicle body 3 are respectively provided with multiple sets of wheels below. The connecting frame 2 is provided with a fixed frame 4 on the top, and a motor is provided inside the connecting frame 2. The motor is connected to the fixed frame 4 through a bearing. The fixed frame 4 is provided with limiting rods 6 on its four outer walls. The outer side of the fixed frame 4 is provided with a movable groove 7 corresponding to the connecting frame 2, and the other end of the limiting rod 6 is inserted into the movable groove 7.

[0019] Furthermore, under the action of the motor, the fixed frame 4 is inserted into the movable slot 7 through the bearing and the limiting rod 6 to form a rotating structure with the connecting frame 2. Thus, during the rotation of the fixed frame 4, the stability can be increased by multiple sets of limiting rods 6, thereby avoiding the situation of tipping over due to low stability when the lifting boom 5 assembly rotates.

[0020] The fixed frame 4 is equipped with a lifting arm 5 on the top, and a telescopic arm is inserted through the other end of the lifting arm 5. A lifting rope is provided at the other end of the telescopic arm, and a hook is provided at the other end of the lifting rope. A windproof cover 8 is placed on the outside of the lifting arm 5, and multiple sets of bolts 9 are inserted through the windproof cover 8. The other end of the bolts 9 is screwed onto the lifting arm 5. It should be noted that the two ends of the windproof cover 8 are attached to the outer wall of the lifting arm 5, thereby effectively ensuring the windproof effect of the windproof cover 8.

[0021] Furthermore, the wind shield 8 has a streamlined structure, and the wind shield 8 is connected to the lifting arm 5 by multiple sets of bolts 9 to form a spiral locking structure. Thus, the wind shield 8 installed by the spiral can effectively disperse the external wind force, thereby reducing the impact of the external wind force on the lifting arm 5.

[0022] The connecting frame 2 and the vehicle body 3 are respectively provided with fixing rods 10, and the fixing rods 10 are respectively provided with legs 11 at both ends. Multiple sets of spiral holes 12 are opened on the fixing rods 10 between the legs 11. A support rod 13 is placed on one side of the spiral hole 12, and a screw 15 is inserted through the upper end of the support rod 13. The other end of the screw 15 is spiraled into the spiral hole 12. A rubber suction cup 14 is provided at the lower end of the support rod 13.

[0023] Furthermore, the support rod 13 has an inclined structure, and the support rod 13 is screwed into the screw hole 12 by the screw 15 to form a screw locking structure with the fixed rod 10. Thus, the support rod 13 installed by the screw can increase the overall support effect of the vehicle body 3, and the rubber suction cup 14 can further increase the overall stability of the vehicle body 3, thereby avoiding the overturning of the crane during operation.

[0024] Working Principle: When using the anti-tipping lifting device for truck-mounted cranes, before using the crane, the wind shield 8 is first screwed onto the boom 5 using bolts 9. The streamlined wind shield 8 disperses external wind force, thus preventing strong external wind from affecting the stability of the boom 5 and increasing the overall anti-tipping effect of the crane. Subsequently, the vehicle body 3 is supported by the outriggers 11, and the inclined support rod 13 assembly is placed on one side of the fixed rod 10. The support rod 13 assembly is screwed onto the fixed rod 10 using screws 15. The inclined support rod 13 further increases the stability of the vehicle body 3 during operation. At the same time, the rubber suction cup 14 further enhances the anti-tipping effect of the vehicle body 3 during crane operation. During crane operation, the fixed frame 4 can be rotated as a whole according to the actual situation. At the same time, the limit rod 6 can rotate synchronously in the movable groove 7. The limit rod 6 increases the stability of the fixed frame 4 during rotation and further prevents the boom 5 from tipping over during the rotation of the fixed frame 4. This is the usage process of the anti-tipping lifting device for truck-mounted cranes.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A truck crane anti-overturning lifting device, comprising a truck head (1), a connecting frame (2) is arranged at the rear side of the truck head (1), and a truck body (3) is arranged at the rear side of the connecting frame (2), and a plurality of groups of wheels are arranged below the truck head (1) and the truck body (3) respectively, characterized in that: The connecting frame (2) is provided with a fixed frame (4) on the top, and the connecting frame (2) is provided with a motor inside, the motor is connected with the fixed frame (4) through the bearing, and the fixed frame (4) is provided with a limiting rod (6) on the outer wall of four sides respectively, the outer side of the fixed frame (4) is provided with a movable groove (7) on the connecting frame (2) correspondingly, and the other end of the limiting rod (6) is inserted into the movable groove (7); The fixed frame (4) is provided with a lifting arm (5) on the top, and the other end of the lifting arm (5) is inserted with a telescopic arm, the telescopic arm is provided with a lifting rope on the other end, and the other end of the lifting rope is provided with a lifting hook, the lifting arm (5) is placed with a wind shield (8) on the outer side, and a plurality of bolts (9) are inserted into the wind shield (8) respectively, the other end of the bolt (9) is screwed on the lifting arm (5); The connecting frame (2) and the car body (3) are respectively provided with a fixed rod (10), and the fixed rod (10) is provided with a supporting leg (11) on both ends respectively, a plurality of spiral holes (12) are formed on the fixed rod (10) between the supporting legs (11), the spiral holes (12) are correspondingly placed with a supporting rod (13) on one side, the supporting rod (13) is inserted with a screw rod (15) on the upper end, and the other end of the screw rod (15) is screwed into the spiral hole (12), and the lower end of the supporting rod (13) is provided with a rubber sucker (14).

2. A fall protection device for a truck-mounted crane according to claim 1, characterized in that: The fixed frame (4) is inserted into the movable groove (7) through the bearing and the limiting rod (6) under the action of the motor, and constitutes a rotating structure with the connecting frame (2).

3. A fall protection device for a truck-mounted crane as claimed in claim 1, characterized in that: The wind shield (8) is a streamline structure, and the wind shield (8) and the lifting arm (5) constitute a screw locking structure through a plurality of bolts (9).

4. A roll-off lifting device for a truck-mounted crane according to claim 1, characterized in that: The supporting rod (13) is an inclined structure, and the supporting rod (13) is screwed into the spiral hole (12) through the screw rod (15) and constitutes a screw locking structure with the fixed rod (10). The supporting rod (13) is an inclined structure, and the supporting rod (13) is screwed into the spiral hole (12) through the screw rod (15) and constitutes a screw locking structure with the fixed rod (10).

Images