Mobile crane supporting device

Abstract

The invention discloses a mobile crane supporting device, and particularly relates to the technical field of crane supporting equipment.The mobile crane supporting device comprises a base, a plurality of grooves are formed in the outer bottom face of the base, a plurality of protruding blocks are arranged in the grooves at equal intervals, a mounting plate is arranged on the top face of the base, and a base plate is fixedly mounted on the top face of the mounting plate; a hollow fixing rod is fixedly installed in the middle of the top face of the protruding block. According to the mobile crane supporting device disclosed by the invention, in actual work, a user pulls a pull handle towards the outside of a hidden groove, so that a driving block moves towards one side of a second spring and extrudes the second spring, a fixing rod is inserted into a fixing hole, the pull handle is loosened, and the extruded second spring pushes the driving block to reset; and then the two mounting rods move towards the outer part of the fixing rod and are inserted into the mounting holes, so that the convex blocks and the grooves are assembled, the convex blocks are disassembled and assembled according to the actual ground flatness, and therefore, the device is suitable for the uneven ground.

Description

Technical Field

[0001] The invention relates to the technical field of crane supporting equipment, and in particular to a mobile crane supporting device. Background Art

[0002] A mobile crane is a type of lifting machinery that can travel along a trackless road and frequently change its working site. It is mainly divided into truck cranes, tire cranes, all-terrain cranes, crawler cranes, etc. Before working, a crane usually has pads or support devices under its legs to improve its anti-overturning stability and safety of use.

[0003] Its structure is like the utility model with announcement number CN222063954U, which discloses a support device for crane outriggers, including a support assembly, a pressure sensor and a processor. The support assembly includes a frame, a pressure plate and a support body arranged in the frame, and the top wall of the frame is provided with an opening. The utility model judges whether the pressure value transmitted by the pressure sensor exceeds the set range, and reminds external staff and staff in the cab to stop working in time to check for hidden dangers. However, when working outdoors, it is difficult to ensure that the ground is flat, especially when there are uneven structures on the ground that are difficult to level, the support device will tilt when placed on the uneven ground, thereby affecting stability. The outrigger pressing on the inclined pad will cause uneven force on the pad surface, affecting service life. It is very troublesome to move the vehicle again or adjust the length of the outrigger hydraulic cylinder to adjust the outrigger position, and the utility model is not suitable for adapting to uneven ground. Therefore, in order to solve the above defects, a mobile crane support device is proposed. Summary of the invention

[0004] The main purpose of the present invention is to provide a mobile crane support device, which can effectively solve the problem that the crane support device in the prior art is not suitable for uneven ground.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A mobile crane support device comprises a base, wherein the outer bottom surface of the base is provided with a plurality of grooves, the interior of the grooves is provided with a plurality of protrusions arranged at equal intervals, the top surface of the base is provided with a mounting plate, and the top surface of the mounting plate is fixedly provided with a pad; A hollow fixing rod is fixedly installed in the middle of the top surface of the protrusion, and mounting rods are slidably connected to the two sides of the outer surface of the fixing rod, and the two opposite ends of the two mounting rods are fixedly installed with limit plates, and the opposite sides of the two limit plates are rotatably connected with movable wheels, and the two limit plates are fixedly installed with first springs on the sides away from the movable wheels, and the two mounting rods are respectively passed through the insides of the two first springs, and the two first springs are fixedly connected to the inner wall of the cavity of the fixing rod; A plurality of positioning holes are provided on both sides of the outer surface of the mounting plate, and pressure sensors are fixedly mounted on the four corners of the bottom surface of the pad.

[0006] Furthermore, a portion of the two mounting rods are located inside the fixed rod, and the other portions are located outside the fixed rod. The interior of the fixed rod is slidably connected to a driving block, and both sides of the driving block are inclined. The two movable wheels are respectively in rolling contact with the inclined sides of the driving block. A pull rod is fixedly installed in the middle of the bottom surface of the driving block, and a second spring is fixedly installed on the bottom surface of the driving block, and the pull rod passes through the interior of the second spring.

[0007] Furthermore, a hidden groove is opened in the middle of the outer bottom surface of the protrusion, the end of the pull rod away from the driving block extends to the inside of the hidden groove, and a pull handle is fixedly installed on the end of the pull rod located in the hidden groove, and guide rods are fixedly installed on both sides of the top surface of the protrusion.

[0008] Furthermore, the bottom surface of the groove is provided with a plurality of fixing holes, and the plurality of fixing holes correspond one-to-one to the plurality of protrusions, the inner walls of the fixing holes are provided with mounting holes on both sides, the bottom surface of the groove is provided with a plurality of guide holes, and the plurality of guide holes are respectively located on both sides of the plurality of mounting holes.

[0009] Furthermore, a mounting groove is provided on the outer top surface of the base, and the mounting plate is located inside the mounting groove, and a plurality of connection holes are provided on opposite sides of the inner wall of the mounting groove.

[0010] Furthermore, a third spring is fixedly installed on one side of the interior of the connecting hole, and a positioning head is fixedly installed on one end of the third spring located at the opening of the connecting hole, and a connecting rod is fixedly installed on the middle part of one end of the positioning head, and a part of the connecting rod is located inside the connecting hole, and the other part is located outside the connecting hole.

[0011] Furthermore, a handle is fixedly mounted on one end of the connecting rod located outside the connecting hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a mobile crane supporting device. By arranging grooves and protrusions, in actual work, when a pull handle is pulled toward the outside of a hidden groove, a driving block will move toward one side of a second spring and squeeze the second spring, and a fixing rod will be inserted into a fixing hole. When the pull handle is released, the squeezed second spring will push the driving block to reset, and then two mounting rods will move toward the outside of the fixing rod and be inserted into the mounting hole, so that the protrusions can be assembled with the grooves, and the protrusions can be disassembled and assembled according to the actual flatness of the ground, so as to facilitate adaptation to uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the bump of the present invention.

[0015] Figure 3 For the present invention Figure 2 Enlarged view of part C in the middle.

[0016] Figure 4 It is a schematic diagram of the groove structure of the present invention when viewed from above.

[0017] Figure 5 For the present invention Figure 4 Enlarged view of part A in the middle.

[0018] Figure 6 It is a schematic diagram of the installation slot structure of the present invention.

[0019] Figure 7 For the present invention Figure 6 Enlarged view of part B in the middle.

[0020] Figure 8 It is a schematic diagram of the mounting plate structure of the present invention.

[0021] Description of reference numerals: 1. Base; 2. Groove; 3. Bump; 4. Mounting plate; 5. Pad; 301. Guide rod; 302. Fixing rod; 303. Mounting rod; 304. First spring; 305. Limit plate; 306. Movable wheel; 307. Driving block; 308. Second spring; 309. Pull rod; 310. Hidden groove; 311. Pull handle; 201. Fixing hole; 202. Guide hole; 203. Mounting hole; 101. Mounting groove; 102. Connecting hole; 103. Third spring; 104. Connecting rod; 105. Positioning head; 106. Handle; 401. Positioning hole; 402. Pressure sensor. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] The present invention discloses a mobile crane support device, which is installed on the mobile crane support legs (not shown in the figure), such as Figure 1-Figure 8As shown, the base 1 includes a base 1, and a plurality of grooves 2 are provided on the outer bottom surface of the base 1. The grooves 2 are arranged in parallel and have different depths. A plurality of protrusions 3 are arranged at equal intervals inside the grooves 2. The protrusions 3 have different heights. When there happens to be a protruding structure that is difficult to level on the ground below the outrigger, such as a cement casting block or a stone exposed above the ground, the protrusion 3 slightly higher than the protruding structure can be removed, and the grooves 2 left after the removal can be buckled on the protruding structure, so that the base 1 is flush with the ground, and will not be tilted due to the protruding structure, and there is no need to move the mobile crane again or adjust the telescopic length of the outrigger cylinder.

[0024] When a concave structure that is difficult to level appears on the bottom surface under the legs, multiple high protrusions 3 can be installed in the grooves 2, and the installed protrusions 3 can be inserted into the concave structure, even if the bottom surface of the base 1 is flush with the ground.

[0025] The top surface of the base 1 is provided with a mounting plate 4, and the top surface of the mounting plate 4 is fixedly provided with a pad 5 for supporting the legs of the mobile crane. The base 1 is placed on the ground, and then the legs of the mobile crane are arranged on the pad 5 to improve the stability of the crane against overturning.

[0026] A hollow fixing rod 302 is fixedly installed in the middle of the top surface of the protrusion 3, and installation rods 303 are slidably connected to both sides of the outer surface of the fixing rod 302, and a part of the two installation rods 303 are located inside the fixing rod 302, and the other parts are located outside the fixing rod 302. The two installation rods 303 can move laterally, that is, they can be moved to the inside of the installation rod 303 or to the outside of the installation rod 303.

[0027] The limiting plates 305 are fixedly installed at the opposite ends of the two mounting rods 303, and the two limiting plates 305 are both located inside the fixed rod 302. The opposite sides of the two limiting plates 305 are rotatably connected with the movable wheels 306. The first springs 304 are fixedly installed on the sides of the two limiting plates 305 away from the movable wheels 306, and the two mounting rods 303 are respectively passed through the insides of the two first springs 304. The two first springs 304 are fixedly connected to the inner wall of the cavity of the fixed rod 302. When the two mounting rods 303 move toward the outside of the fixed rod 302, the two limiting plates 305 will squeeze the two first springs 304, causing the first springs 304 to deform.

[0028] The interior of the fixed rod 302 is slidably connected with a driving block 307, and the cross-sectional shape of the driving block 307 is an isosceles triangle, so that both sides of the driving block 307 are inclined, and the two movable wheels 306 are in rolling contact with the inclined sides of the driving block 307 respectively, and then when the driving block 307 rises inside the fixed rod 302, the driving block 307 will gradually insert between the two movable wheels 306, and then the two mounting rods 303 will move toward the outer surface of the fixed rod 302, and the two limit plates 305 will squeeze the two first springs 304, and when the driving block 307 descends, the driving block 307 will gradually be pulled out from between the two movable wheels 306. At this time, the squeezed first spring 304 will push the two limit plates 305 and the two mounting rods 303 to reset, so that the two mounting rods 303 move to the inside of the fixed rod 302.

[0029] A pull rod 309 is fixedly installed in the middle of the bottom surface of the driving block 307, and a second spring 308 is fixedly installed on the bottom surface of the driving block 307, and the pull rod 309 passes through the inside of the second spring 308. When the pull rod 309 is raised or lowered, it will drive the driving block 307 to rise or fall. When the driving block 307 descends, it will squeeze the second spring 308, causing the second spring 308 to deform.

[0030] The stiffness of the second spring 308 is greater than that of the two first springs 304. Under the same force, the first spring 304 is more likely to deform than the second spring 308, so that the driving block 307 can be inserted between the two movable wheels 306. Then, when the pull rod 309 is released, the squeezed second spring 308 pushes the driving block 307 to reset and rise in the fixed rod 302, thereby pushing the two movable wheels 306 away from each other.

[0031] A hidden groove 310 is provided in the middle of the outer bottom surface of the protrusion 3, and the end of the pull rod 309 away from the driving block 307 extends to the inside of the hidden groove 310, and a pull handle 311 is fixedly installed at the end of the pull rod 309 located inside the hidden groove 310. The pull handle 311 can be embedded in the hidden groove 310 to avoid the pull handle 311 from protruding when the bottom surface of the protrusion 3 contacts the ground. The user holds the pull handle 311 to pull the pull rod 309 to move, and guide rods 301 are fixedly installed on both sides of the top surface of the protrusion 3.

[0032] A plurality of fixing holes 201 are provided on the bottom surface of the groove 2, and the plurality of fixing holes 201 correspond one-to-one to the plurality of protrusions 3. Mounting holes 203 are provided on both sides of the inner wall of the fixing hole 201. A plurality of guide holes 202 are provided on the bottom surface of the groove 2, and the plurality of guide holes 202 are respectively located on both sides of the plurality of mounting holes 203. The plurality of guide holes 202 correspond one-to-one to the plurality of guide rods 301. When the fixing rod 302 is inserted into the fixing hole 201, the guide rod 301 will be inserted into the guide hole 202 accordingly.

[0033] When the user pulls the handle 311 toward the outside of the hidden groove 310, the driving block 307 will move toward the side of the second spring 308 and squeeze the second spring 308, and the driving block 307 will gradually be pulled out from between the two movable wheels 306. At this time, the squeezed first spring 304 will push the two limit plates 305 and the two mounting rods 303 to reset, so that the two mounting rods 303 move to the inside of the fixed rod 302.

[0034] At this time, insert the fixing rod 302 into the fixing hole 201, release the handle 311, and the driving block 307 will gradually be inserted between the two movable wheels 306, so that the two mounting rods 303 will move toward the outer surface of the fixing rod 302, and the two limiting plates 305 will squeeze the two first springs 304, so that the two mounting rods 303 will move toward the outside of the fixing rod 302 and insert into the mounting hole 203. When the fixing rod 302 is inserted into the fixing hole 201, the guide rod 301 will be inserted into the guide hole 202 so as to assemble the protrusion 3 with the groove 2, so as to choose to install or remove the protrusion 3 according to the actual ground flatness.

[0035] An installation groove 101 is provided on the outer top surface of the base 1, and the installation plate 4 is located inside the installation groove 101. A plurality of connecting holes 102 are provided on opposite sides of the inner wall of the installation groove 101. A third spring 103 is fixedly installed on one side of the inner side of the connecting hole 102, and a positioning head 105 is fixedly installed on one end of the third spring 103 located at the opening of the connecting hole 102. When the positioning head 105 moves toward one side of the third spring 103, it will squeeze the third spring 103.

[0036] The positioning head 105 is located at the middle of one end of the third spring 103 and is fixedly installed with a connecting rod 104, and a part of the connecting rod 104 is located inside the connecting hole 102, and the other part is located outside the connecting hole 102. When the connecting rod 104 moves, it will drive the positioning head 105 to move, and a handle 106 is fixedly installed at one end of the multiple connecting rods 104 located outside the connecting hole 102. The user can hold and pull the handle 106 to pull multiple connecting rods 104 to move at the same time.

[0037] A plurality of positioning holes 401 are provided on both sides of the outer surface of the mounting plate 4, and the plurality of positioning holes 401 correspond to the plurality of positioning heads 105 one by one. The user pulls the handle 106 to drive the connecting rod 104 and the positioning head 105 to move toward one side of the third spring 103, so that the positioning head 105 moves to the inside of the connecting hole 102, and then the mounting plate 4 is inserted into the mounting groove 101 on the top surface of the base 1, and the handle 106 is released. The squeezed third spring 103 will push the positioning head 105 to reset, so that the positioning head 105 is inserted into the connecting hole 102, so that the mounting plate 4 can be stably installed in the mounting groove 101, and it is also convenient to assemble or disassemble the mounting plate 4 and the base 1, so that the user can replace the base 1 with different grooves 2 according to the ground conditions.

[0038] Pressure sensors 402 are fixedly installed at the four corners of the bottom surface of the pad 5. The model of the pressure sensor 402 is Hanwei Technology HWY-810. When the outriggers of the mobile crane are in contact with the pad 5, the pressure sensor 402 operates, and the external pressure is transmitted to the silicon diaphragm through the isolation diaphragm and silicone oil, causing the diaphragm to deform slightly. The deformation of the diaphragm compresses or stretches the lattice structure of the varistor, and the resistance value changes symmetrically. The differential voltage output by the Wheatstone bridge is converted into a standard signal through the amplification circuit, and the signal will be transmitted to the matching monitoring terminal, so as to detect the outrigger pressure of the mobile crane. When the pressure exceeds the limit, the monitoring terminal will sound an alarm to remind external staff and staff in the cab to stop working in time to check for hidden dangers and reduce the occurrence of safety accidents.

[0039] The working principle of the present invention is as follows: when the user pulls the handle 311 toward the outside of the hidden groove 310, the driving block 307 will move toward one side of the second spring 308 and squeeze the second spring 308, and the driving block 307 will gradually be pulled out from between the two movable wheels 306. At this time, the squeezed first spring 304 will push the two limit plates 305 and the two mounting rods 303 to reset, so that the two mounting rods 303 move to the inside of the fixed rod 302.

[0040] At this time, insert the fixing rod 302 into the fixing hole 201, release the handle 311, and the driving block 307 will gradually be inserted between the two movable wheels 306, so that the two mounting rods 303 will move toward the outer surface of the fixing rod 302, and the two limiting plates 305 will squeeze the two first springs 304, so that the two mounting rods 303 will move toward the outside of the fixing rod 302 and insert into the mounting hole 203. When the fixing rod 302 is inserted into the fixing hole 201, the guide rod 301 will be inserted into the guide hole 202 so as to assemble the protrusion 3 with the groove 2, so as to choose to install or remove the protrusion 3 according to the actual ground flatness.

[0041] When there happens to be a raised structure that is difficult to level on the ground below the outrigger, such as a cement block or a stone protruding above the ground, the pad that is slightly higher than the raised structure can be removed, and the groove 2 left after the removal can be buckled on the raised structure to make the base 1 flush with the ground without tilting due to the raised structure, and there is no need to move the vehicle again or adjust the telescopic length of the outrigger cylinder.

[0042] When a concave structure that is difficult to level appears on the bottom surface under the legs, multiple high protrusions 3 can be installed in the grooves 2, and the installed protrusions 3 can be inserted into the concave structure, even if the bottom surface of the base 1 is flush with the ground.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mobile crane support device, comprising a base (1), characterized in that: The outer bottom surface of the base (1) is provided with a plurality of grooves (2), the interior of the grooves (2) is provided with a plurality of protrusions (3) arranged at equal intervals, the top surface of the base (1) is provided with a mounting plate (4), and a pad (5) is fixedly mounted on the top surface of the mounting plate (4); A hollow fixing rod (302) is fixedly installed in the middle of the top surface of the protrusion (3), and mounting rods (303) are slidably connected to both sides of the outer surface of the fixing rod (302), and limiting plates (305) are fixedly installed on opposite ends of the two mounting rods (303), and movable wheels (306) are rotatably connected to the opposite sides of the two limiting plates (305), and first springs (304) are fixedly installed on the sides of the two limiting plates (305) away from the movable wheels (306), and the two mounting rods (303) are respectively inserted into the inside of the two first springs (304), and the two first springs (304) are fixedly connected to the inner wall of the cavity of the fixing rod (302); A plurality of positioning holes (401) are provided on both sides of the outer surface of the mounting plate (4), and pressure sensors (402) are fixedly mounted on the four corners of the bottom surface of the pad (5).

2. A mobile crane support device according to claim 1, characterized in that: Parts of the two mounting rods (303) are located inside the fixed rod (302), and the other parts are located outside the fixed rod (302); the interior of the fixed rod (302) is slidably connected to a driving block (307), and both sides of the driving block (307) are inclined; the two movable wheels (306) are in rolling contact with the inclined sides of the driving block (307), respectively; a pull rod (309) is fixedly installed in the middle of the bottom surface of the driving block (307); a second spring (308) is fixedly installed on the bottom surface of the driving block (307), and the pull rod (309) passes through the inside of the second spring (308).

3. A mobile crane support device according to claim 2, characterized in that: A hidden groove (310) is provided in the middle of the outer bottom surface of the protrusion (3), one end of the pull rod (309) away from the driving block (307) extends to the inside of the hidden groove (310), and a pull handle (311) is fixedly installed on the end of the pull rod (309) located inside the hidden groove (310), and guide rods (301) are fixedly installed on both sides of the top surface of the protrusion (3).

4. A mobile crane support device according to claim 1, characterized in that: The bottom surface of the groove (2) is provided with a plurality of fixing holes (201), and the plurality of fixing holes (201) correspond one-to-one to the plurality of protrusions (3); both sides of the inner wall of the fixing hole (201) are provided with mounting holes (203); the bottom surface of the groove (2) is provided with a plurality of guide holes (202), and the plurality of guide holes (202) are respectively located on both sides of the plurality of mounting holes (203).

5. The mobile crane support device according to claim 1, characterized in that: The outer top surface of the base (1) is provided with a mounting groove (101), and the mounting plate (4) is located inside the mounting groove (101). Two opposite sides of the inner wall of the mounting groove (101) are provided with a plurality of connection holes (102).

6. A mobile crane support device according to claim 5, characterized in that: A third spring (103) is fixedly mounted on one side of the interior of the connecting hole (102), and a positioning head (105) is fixedly mounted on one end of the third spring (103) located at the opening of the connecting hole (102), and a connecting rod (104) is fixedly mounted on the middle part of one end of the positioning head (105) of the third spring (103), and a portion of the connecting rod (104) is located inside the connecting hole (102), and another portion is located outside the connecting hole (102).

7. A mobile crane support device according to claim 6, characterized in that: A handle (106) is fixedly mounted on one end of the connecting rod (104) located outside the connecting hole (102).

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