Supporting mechanism and lorry-mounted crane

Abstract

The utility model discloses a supporting mechanism and a lorry-mounted crane, and belongs to the technical field of lorry-mounted cranes, the supporting mechanism comprises a vehicle body used for transportation and a crane body used for lifting, and further comprises supporting legs, and the supporting legs are installed on the two sides of the vehicle body; the auxiliary supporting structure comprises a quick connecting supporting piece, the quick connecting supporting piece comprises a supporting bottom plate and a limiting clamp, the limiting clamp is rotationally arranged above the supporting bottom plate in a limiting mode, the supporting bottom plate is located at the bottoms of the supporting legs, the limiting clamp is locked to the bottoms of the supporting legs in a limiting mode, and an auxiliary supporting piece is arranged at the bottom of the quick connecting supporting piece. The quick connection supporting piece is quickly connected with the supporting leg in a locking mode through extrusion of the supporting leg, deviation and inclination are prevented in the using process, the stress area of the bottom of the supporting leg is conveniently increased, the situation that the supporting leg sinks due to loose and soft soil is reduced, and the risk that the lorry-mounted crane rolls over on one side is reduced.

Description

Technical Field

[0001] The utility model relates to the field of truck-mounted cranes, and in particular to a supporting mechanism and a truck-mounted crane. Background Art

[0002] A truck-mounted crane is a special vehicle that integrates mechanical, hydraulic and electronic technologies. It transports objects through continuous amplitude change, rotation, extension and lifting actions of the truck-mounted crane.

[0003] Truck mounted cranes are usually used in places with good road conditions, but they will directly enter in emergency situations such as rescue operations. During rescue operations, there will be bad weather such as rainy days. The soil on the ground is soft in rainy days. When the crane is working, the bottom support legs will sink into the soil. At the same time, one side will sink due to the soft soil. In severe cases, it will cause rollover and affect rescue operations. It is not convenient to support the support legs of the truck mounted crane through a support structure to increase the force bearing area of ​​the support legs. How to invent a support mechanism and a truck mounted crane to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a support mechanism and a truck-mounted crane, aiming to improve the problem that the soil on the ground is soft and the support legs at the bottom of the crane will sink into the soil when working, affecting the work.

[0005] The utility model is implemented as follows: a supporting mechanism includes a vehicle body for transportation and a crane body for lifting, and also includes

[0006] Support legs, the support legs are installed on both sides of the vehicle body;

[0007] An auxiliary support structure, the auxiliary support structure includes a quick-connect support member, the quick-connect support member includes a support base plate and a limit card, a limit card is provided on the upper limit rotation of the support base plate, the support base plate is located at the bottom of the support leg, the limit card is locked with the bottom limit of the support leg, and an auxiliary support member is provided at the bottom of the quick-connect support member.

[0008] In a preferred technical solution of the present utility model, the quick connection support also includes a pressing block, the pressing block is fixedly installed in the middle of the supporting base plate, and the limiting card is rotatably installed around the pressing block.

[0009] In a preferred technical solution of the utility model, grooves are provided on the four sides of the pressing block, and the limit card is rotatably installed in the grooves around the pressing block through the installation shaft.

[0010] In a preferred technical solution of the present invention, the limit card includes a connecting rod, the top of the connecting rod is fixedly connected to the limit hook, the bottom inner side of the connecting rod is fixedly connected to the limit block, a spring is provided at the bottom of the limit block, a sliding rod is provided above the limit block, and the sliding rod limit slides through the top of the pressure block recess and abuts against the limit block.

[0011] In a preferred technical solution of the utility model, the top of the slide rod is a disc, the middle of the slide rod is a rod, the bottom of the slide rod is a spherical setting, and the sphere at the bottom of the slide rod abuts against the limit block.

[0012] In a preferred technical solution of the utility model, a convex tail is arranged on the outer side of the bottom of the connecting rod, and the convex tail passes through the outer side of the pressing block.

[0013] In a preferred technical solution of the utility model, reinforcement plates are fixedly connected to the four sides of the pressing block, one side of the reinforcement plate is fixedly connected to the side wall of the pressing block, and the other side of the reinforcement plate is fixedly connected to the inner bottom of the supporting base plate.

[0014] In a preferred technical solution of the present invention, the four sides of the supporting base plate are all turned outward.

[0015] In a preferred technical solution of the utility model, an auxiliary support member is included, and the auxiliary support member includes a matching plate, and the matching plate is placed at the bottom of the supporting base plate.

[0016] In another preferred technical solution of the utility model, a truck-mounted crane includes a support mechanism, wherein a limit ring is fixedly arranged above the bottom support block of the support leg, and the limit ring is arranged corresponding to the limit card.

[0017] The beneficial effect of the utility model is that the utility model obtains a support mechanism and a truck crane through the above design. When in use, the quick-connect support part is placed on the ground, and the supporting legs are lowered at the same time. The supporting legs press down the top of the pressure block and press the sliding rod at the same time, so that the sliding rod is pressed down to squeeze the limit block. The limit block is pressed down to drive the connecting rod to rotate so that the limit hook is clamped on the top of the pressure block at the bottom of the supporting leg and is locked with the limit ring. At this time, the support bottom plate increases the force-bearing area of ​​the supporting leg so that it will not sink into the soil during use. When not in use, the supporting leg is raised to release the squeezing of the sliding rod. The spring will push the limit block to drive the connecting rod and the limit hook to move away from the supporting leg to release the lock, which is convenient for increasing the force-bearing area at the bottom of the supporting leg, reducing the sinking of the supporting leg caused by soft soil, and reducing the risk of the truck crane rolling over. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the auxiliary support structure and structure of the support leg provided in the embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the auxiliary support structure provided for the implementation mode of the utility model;

[0022] Figure 4 A schematic diagram of the cross-sectional structure of a quick-connect support member provided in an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the limit card provided in the embodiment of the utility model.

[0024] In the figure: 110-car body; 120-crane body; 130-support leg; 131-limiting ring; 200-auxiliary support structure; 210-quick connection support; 211-support bottom plate; 212-limiting card; 2121-limiting hook; 2122-protruding tail; 2123-limiting block; 2124-connecting rod; 213-reinforcement plate; 214-spring; 215-pressure block; 216-slide rod; 217-installation shaft; 220-auxiliary support; 221-matching plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 and Figure 2 The utility model provides a technical solution: a support mechanism, including a vehicle body 110 for transportation and a crane body 120 for lifting, and also includes

[0027] Support legs 130, the support legs 130 are installed on both sides of the vehicle body 110;

[0028] Auxiliary support structure 200, the auxiliary support structure 200 includes a quick-connect support member 210, the quick-connect support member 210 includes a support base plate 211 and a limit card 212, the upper limit rotation of the support base plate 211 is provided with a limit card 212, the support base plate 211 is located at the bottom of the support leg 130, the limit card 212 is locked with the bottom limit of the support leg 130, an auxiliary support member 220 is provided at the bottom of the quick-connect support member 210, the quick-connect support member 210 is quickly locked with the support leg 130 through the extrusion of the support leg 130 to prevent displacement and tilting during use.

[0029] See also Figures 3 to 5 The quick connection support 210 further includes a pressing block 215, which is fixedly mounted in the middle of the support base plate 211, and a limit card 212 is installed around the pressing block 215 for limited rotation. Grooves are provided on all four sides of the pressing block 215, and the limit card 212 is installed in the grooves around the pressing block 215 for limited rotation through the installation shaft 217. The pressing block 215 is used to install the limit card 212, and the limit card 212 is used to limit and lock the support leg 130 to prevent the support base plate 211 from tilting or displacement when the crane body 120 is working.

[0030] The limit card 212 includes a connecting rod 2124, the top of the connecting rod 2124 is fixedly connected to the limit hook 2121, the bottom inner side of the connecting rod 2124 is fixedly connected to the limit block 2123, the bottom of the limit block 2123 is provided with a spring 214, and the upper part of the limit block 2123 is provided with a slide bar 216, and the slide bar 216 slides through the concave top of the pressing block 215 to abut against the limit block 2123. The top of the slide bar 216 is a disc, the middle of the slide bar 216 is a rod, and the bottom of the slide bar 216 is a spherical setting. The spherical shape at the bottom of the slide bar 216 abuts against the limit block 2123. The slide bar 216 slides up and down to squeeze the limit block 2123, so that the limit block 2123 transmits the connecting rod 2124, and the spring 214 is used to support the limit block 2123. When there is no pressure, the connecting rod 2124 is pushed to rotate outward to release the locking of the support leg 130.

[0031] The bottom outer side of the connecting rod 2124 is provided with a protruding tail 2122, which penetrates the outer side of the pressing block 215. The protruding tail 2122 is used to release the limit of the support leg 130 by pressing down the protruding tail 2122 when the spring 214 is not working or damaged. The pressing block 215 is fixedly connected with a reinforcing plate 213 on all sides, one side of the reinforcing plate 213 is fixedly connected to the side wall of the pressing block 215, and the other side of the reinforcing plate 213 is fixedly connected to the inner bottom of the supporting bottom plate 211. The supporting bottom plate 211 is set to be turned outward on all sides.

[0032] See also Figure 3 , including an auxiliary support member 220, the auxiliary support member 220 includes a matching plate 221, and the matching plate 221 is placed at the bottom of the support base plate 211. A limit ring 131 is fixedly arranged above the bottom support block of the support leg 130, and the limit ring 131 is correspondingly arranged with the limit card 212, and the limit hook 2121 will be limitedly engaged with the limit ring 131 to prevent the support base plate 211 from displacement.

[0033] Working principle: In normal use, the vehicle body 110 drives the crane body 120 to move, and the support legs 130 support at a suitable position while the crane body 120 lifts. When the soil is relatively soft, the quick-connect support 210 is placed on the ground, and the support legs 130 are lowered. The support legs 130 press down on the top of the pressure block 215, and at the same time, the slide bar 216 is pressed down, so that the slide bar 216 presses down to squeeze the limit block 2123, and the limit block 2123 is pressed down to drive the connecting rod 2124 to rotate so that the limit hook 2121 is stuck on the bottom pressure block of the support leg 130 The support base 211 is limited and locked with the limit ring 131 at the top. At this time, the support base plate 211 increases the force-bearing area of ​​the support leg 130 so that it will not sink into the soil during use. At the same time, a matching plate 221 is prepared as needed. When the force-bearing area of ​​the support base plate 211 is not enough, the matching plate 221 is placed at the bottom of the support base plate 211 to increase the force-bearing area of ​​the support base plate 211. When the support leg 130 is not in use, it is lifted to release the squeezing of the sliding rod 216. The spring 214 will push the limit block 2123 to drive the connecting rod 2124 and the limit hook 2121 away from the support leg 130 to release the lock.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support mechanism, comprising a vehicle body for transportation and a crane body for lifting, characterized in that: Also includes Support legs, the support legs are installed on both sides of the vehicle body; An auxiliary support structure, the auxiliary support structure includes a quick-connect support member, the quick-connect support member includes a support base plate and a limit card, a limit card is provided on the upper limit rotation of the support base plate, the support base plate is located at the bottom of the support leg, the limit card is locked with the bottom limit of the support leg, and an auxiliary support member is provided at the bottom of the quick-connect support member.

2. A support mechanism according to claim 1, characterized in that: The quick connection support also includes a pressing block, which is fixedly installed at the middle part of the supporting bottom plate, and the limiting card is installed around the pressing block for limited rotation.

3. A support mechanism according to claim 2, characterized in that: The four sides of the pressing block are all provided with grooves, and the limiting card is rotatably installed in the grooves around the pressing block through the installation shaft.

4. A support mechanism according to claim 3, characterized in that: The limit card includes a connecting rod, the top of the connecting rod is fixedly connected to the limit hook, the bottom inner side of the connecting rod is fixedly connected to the limit block, a spring is provided at the bottom of the limit block, a sliding rod is provided above the limit block, and the sliding rod limit slides through the top of the pressing block recess and abuts against the limit block.

5. A supporting mechanism according to claim 4, characterized in that: The top of the slide rod is a disc, the middle of the slide rod is a rod, the bottom of the slide rod is a spherical setting, and the spherical shape of the bottom of the slide rod abuts against the limit block.

6. A support mechanism according to claim 4, characterized in that: A convex tail is arranged on the outer side of the bottom of the connecting rod, and the convex tail passes through the outer side of the pressing block.

7. A support mechanism according to claim 2, characterized in that: The pressing block is fixedly connected with reinforcing plates on all sides, one side of the reinforcing plates is fixedly connected to the side wall of the pressing block, and the other side of the reinforcing plates is fixedly connected to the inner bottom of the supporting bottom plate.

8. A supporting mechanism according to claim 7, characterized in that: The four sides of the supporting bottom plate are all turned outward.

9. A supporting mechanism according to claim 8, characterized in that: An auxiliary support member is included, and the auxiliary support member includes a matching plate, and the matching plate is placed at the bottom of the supporting base plate.

10. A truck-mounted crane, comprising a supporting mechanism according to any one of claims 1 to 9, characterized in that: A limiting ring is fixedly arranged above the bottom supporting block of the supporting leg, and the limiting ring is arranged correspondingly to the limiting card.

Images