CN217838263U - Mobile crane with automatic telescopic auxiliary wheel - Google Patents

Abstract

The utility model relates to the technical field of cranes, in particular to a mobile crane with automatic retractable auxiliary wheels, comprising a base, a load-bearing platform, a connecting rod assembly and a driving part; the connecting rod assembly is arranged between the base and the bearing platform; The two ends of the driving member are respectively hinged with the base and the load-bearing platform; the bottom of the base is provided with moving wheels; the base is provided with a telescopic assembly; the connecting rod assembly is used to drive the telescopic assembly to expand and contract; There are training wheels at the bottom. The utility model sets telescopic components and auxiliary wheels, and as the load-bearing platform continues to rise, the auxiliary wheels also continuously move outward, and the auxiliary wheels on both sides of the base enhance the stability of the base, which can effectively prevent the mobile crane from Overturning and toppling over.

Description

A mobile crane with automatic retractable auxiliary wheels

technical field

The utility model relates to the technical field of cranes, in particular to a mobile crane with automatic retractable auxiliary wheels.

Background technique

Lifting platform is a multi-functional lifting and loading and unloading mechanical equipment, which can be divided into fixed type and mobile type. In the prior art, when there are too many items stacked on one side of the lifting platform, it is easy to cause the lifting platform to fall. In addition, the volume and weight of the existing portable lifting lifting machines are too large, and they cannot be lifted and moved at the same time when carrying heavy objects. bodily or property damage.

Existing technologies such as Chinese patents with application numbers CN201911319294.3, CN201420306549.9 and CN202021866305.8 all disclose a mobile lifting platform; from the contents of the three prior art records, it can be seen that at the bottom of the lifting platform There are two moving wheels on both sides of the lifting platform to move the lifting platform; and because the bottom of the lifting platform is in contact with the ground through the moving wheels, the contact area between the lifting platform and the wheels is small. When heavy objects are placed on one side, the lifting platform is prone to the risk of tipping and toppling to one side.

Utility model content

The purpose of this utility model is to provide a mobile crane with automatic retractable auxiliary wheels for the above-mentioned deficiencies in the prior art.

The purpose of this utility model is achieved through the following technical solutions: a mobile crane with automatic telescopic auxiliary wheels, including a base, a bearing platform, a connecting rod assembly and a driving part; the connecting rod assembly is arranged between the base and the bearing platform ; Both ends of the driving member are respectively hinged to the base and the bearing platform;

The bottom of the base is provided with moving wheels; the base is provided with a telescopic assembly; the connecting rod assembly is used to drive the telescopic assembly to expand and contract; the bottom of the telescopic assembly is provided with auxiliary wheels.

The utility model is further provided that the telescopic assembly includes a first telescopic link and a second telescopic link; one end of the base is provided with a fixing piece; the other end of the base is provided with a chute; A sliding piece is provided for sliding; one end of the first telescopic link is hinged with the fixing piece; one end of the second telescopic link is hinged with the sliding piece; the other end of the first telescopic link is hinged with the second telescopic link The other end is hinged; the auxiliary wheel is arranged at the bottom of the first telescopic link or the second telescopic link.

The utility model is further provided that a first fixed shaft is provided between the fixed part and the base; the sliding part includes a hinged part and a sliding part; a second fixed shaft is provided between the hinged part and the sliding part; The hinged part is hinged to the one end of the second telescopic link; the sliding part is slidably connected to the chute; the first fixed shaft and the second fixed shaft are respectively used for rotational connection with the connecting rod assembly.

The utility model is further provided that the driving part is an electric push rod; the electric push rod is hinged to the bottom of the bearing platform; the output end of the electric push rod is hinged to the other end of the base.

The utility model is further provided that the connecting rod assembly includes a first lifting assembly and a second lifting assembly; one end of the first lifting assembly is hinged to the load-bearing platform; the other end of the first lifting assembly is connected to the second lifting assembly One end of the second lift assembly is hinged; the other end of the second lift assembly is hinged to the base.

The utility model is further provided that the first lifting component includes a first lifting link and a second lifting link; the second lifting component includes a third lifting link and a fourth lifting link;

One end of the first lifting link is hinged to one end of the bearing platform; the other end of the first lifting link is hinged to one end of the third lifting link; the other end of the third lifting link is hinged to one end of the base hinged;

One end of the second lifting link is hinged to the other end of the bearing platform; the other end of the second lifting link is hinged to one end of the fourth lifting link; the other end of the fourth lifting link is hinged to the base The other end is hinged;

The middle part of the first lifting link is hinged with the middle part of the second lifting link; the middle part of the third lifting link is hinged with the middle part of the fourth lifting link.

The utility model is further provided that the number of the telescopic assembly and the auxiliary wheels is two; the two telescopic assemblies and the two auxiliary wheels are respectively arranged on both sides of the base.

The utility model is further provided that the mobile crane with automatic retractable auxiliary wheels further includes a wireless module; the wireless module is electrically connected to the driving part.

The utility model is further configured as follows: the load-bearing platform includes a bottom plate, a middle plate and a top plate arranged in sequence; a baffle piece extends downward around the top plate; the baffle piece is provided with a riveting hole; the bottom of the bottom plate is provided with There is a placement box; the wireless module is arranged in the placement box.

Beneficial effects of the utility model: the utility model sets telescopic components and auxiliary wheels, and as the load-bearing platform continues to rise, the auxiliary wheels also continuously move outward, and the auxiliary wheels on both sides of the base enhance the stability of the base, which can Effectively prevent the mobile crane from overturning and toppling.

Description of drawings

Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the present utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.

Fig. 1 is a structural schematic diagram of the utility model load-bearing platform fully rising;

Fig. 2 is a structural schematic diagram of the utility model load-bearing platform rising;

Fig. 3 is a schematic diagram of the structure of the load-bearing platform of the present invention before it is raised

Fig. 4 is a side view of the load-bearing platform of the utility model fully raised;

Fig. 5 is a schematic structural view of the hidden bearing platform and connecting rod assembly of the utility model;

Fig. 6 is a schematic structural view of the load-bearing platform of the present invention;

Fig. 7 is an exploded view of the structure of the load-bearing platform of the present invention;

Among them: 1. Base; 11. Moving wheel; 12. Chute; 2. Bearing platform; 3. Driving part; 4. Auxiliary wheel; 41. First telescopic link; 42. Second telescopic link; 5. Fixed 51, the first fixed shaft; 6, the sliding part; 61, the hinge; 62, the sliding part; 63, the second fixed shaft; 71, the first lifting link; 72, the second lifting link; 73, the first Three lifting connecting rods; 74, the fourth lifting connecting rod; 81, base plate; 82, middle plate; 83, top plate; 84, catch piece; 85, riveting hole;

Detailed ways

The utility model is further described in conjunction with the following examples.

It can be seen from Fig. 1 and Fig. 7 that a mobile crane with automatic retractable auxiliary wheels 4 described in this embodiment includes a base 1, a bearing platform 2, a connecting rod assembly and a driving member 3; between the base 1 and the load-bearing platform 2; the two ends of the driving member 3 are respectively hinged with the base 1 and the load-bearing platform 2;

The bottom of the base 1 is provided with a moving wheel 11; the base 1 is provided with a telescopic assembly; the connecting rod assembly is used to drive the telescopic assembly to expand and contract; the bottom of the telescopic assembly is provided with an auxiliary wheel 4.

Specifically, the mobile crane with automatic telescopic auxiliary wheels 4 described in this embodiment is in the state shown in Figure 3 when it is fully retracted. At this time, the auxiliary wheels 4 are located near the base 1 to avoid the crane It takes up too much space and is easy to fold and store; when the driving part 3 starts to work, the driving part 3 cooperates with the connecting rod assembly to raise the load-bearing platform 2, and the state shown in Figure 2 is the state where the load-bearing platform 2 is half raised At this time, the connecting rod assembly drives the auxiliary wheel 4 to move outward through the telescopic assembly. As the load-bearing platform 2 continues to rise, the auxiliary wheel 4 also moves outward continuously. The auxiliary wheels 4 on both sides of the base 1 enhance the stability of the base 1 It can effectively prevent the mobile crane from overturning and toppling.

A mobile crane with automatic telescopic auxiliary wheels 4 described in this embodiment, the telescopic assembly includes a first telescopic link 41 and a second telescopic link 42; one end of the base 1 is provided with a fixing member 5 The other end of the base 1 is provided with a chute 12; the chute 12 is slidably provided with a slider 6; one end of the first telescopic link 41 is hinged with the fixture 5; the second telescopic link One end of 42 is hinged with the slider 6; the other end of the first telescopic link 41 is hinged with the other end of the second telescopic link 42; the auxiliary wheel 4 is arranged on the first telescopic link 41 or the second telescopic link Bottom of rod 42. In the mobile crane with automatic retractable auxiliary wheels 4 described in this embodiment, a first fixed shaft 51 is provided between the fixed part 5 and the base 1; the sliding part 6 includes a hinged part 61 and a sliding part 62; a second fixed shaft 63 is provided between the hinged part 61 and the sliding part 62; the hinged part 61 is hinged to the one end of the second telescopic link 42; the sliding part 62 is slidably connected to the chute 12 ; The first fixed shaft 51 and the second fixed shaft 63 are respectively used for rotational connection with the connecting rod assembly. Specifically, the other end of the third lifting link 73 is rotatably disposed on the first fixed shaft 51 , and the other end of the fourth lifting link 74 is rotatably disposed on the second fixed shaft 63 .

Specifically, the mobile crane with automatic retractable auxiliary wheels 4 described in this embodiment is in the state shown in FIG. , the angle between the first telescopic link 41 and the second telescopic link 42 is the largest, so that the auxiliary wheel 4 is located close to the base 1, so as to prevent the crane from occupying too much space and facilitate folding and storage;

When the load-bearing platform 2 starts to rise, the connecting rod assembly drives the slider 6 to move to the left along the chute 12, so that the angle between the first telescopic connecting rod 41 and the second telescopic connecting rod 42 becomes gradually smaller, so that The auxiliary wheels 4 also move outward continuously thereupon. The auxiliary wheels 4 on both sides of the base 1 enhance the stability of the base 1 and can effectively prevent the mobile crane from overturning and toppling.

In the mobile crane with automatic retractable auxiliary wheels 4 described in this embodiment, the driving member 3 is an electric push rod; the electric push rod is hinged to the bottom of the load-bearing platform 2; the output of the electric push rod One end is hinged with the other end of base 1.

Specifically, through the above arrangement, the telescopic operation of the electric push rod can realize the lifting operation of the mobile crane.

In the mobile crane with automatic telescopic auxiliary wheels 4 described in this embodiment, the connecting rod assembly includes a first lifting assembly and a second lifting assembly; one end of the first lifting assembly is hinged to the bearing platform 2; The other end of the first lifting assembly is hinged to one end of the second lifting assembly; the other end of the second lifting assembly is hinged to the base 1 .

In the mobile crane with automatic retractable auxiliary wheels 4 described in this embodiment, the first lifting assembly includes a first lifting link 71 and a second lifting link 72; the second lifting assembly includes a third Lifting link 73 and fourth lifting link 74;

One end of the first lifting link 71 is hinged with one end of the bearing platform 2; the other end of the first lifting link 71 is hinged with one end of the third lifting link 73; the other end of the third lifting link 73 is hinged. One end is hinged to one end of the base 1;

One end of the second lifting link 72 is hinged with the other end of the bearing platform 2; the other end of the second lifting link 72 is hinged with an end of the fourth lifting link 74; The other end is hinged to the other end of the base 1;

The middle part of the first lifting link 71 is hinged with the middle part of the second lifting link 72 ; the middle part of the third lifting link 73 is hinged with the middle part of the fourth lifting link 74 .

Specifically, when the electric push rod is telescopic, the load-bearing platform 2 and the base 1 are linked through the first lifting link 71 , the second lifting link 72 , the third lifting link 73 and the fourth lifting link 74 . , so that the first lifting link 71 is hinged with the second lifting link 72 and the third lifting link 73 is hinged with the fourth lifting link 74, thereby realizing the lifting of the load-bearing platform 2 .

A mobile crane with automatic telescopic auxiliary wheels 4 described in this embodiment, the number of the telescopic assembly and the auxiliary wheels 4 is two; the two telescopic assemblies and the two auxiliary wheels 4 are respectively arranged on the base 1 on both sides. Through the above arrangement, the structure of the mobile crane is stable, and overturning and toppling can be prevented.

A mobile crane with automatic retractable auxiliary wheels 4 described in this embodiment further includes a wireless module; the wireless module is electrically connected to the driving member 3 . Through the above settings, the user can remotely control the crane to lift through the remote control.

A mobile crane with automatic telescopic auxiliary wheels 4 described in this embodiment, the load-bearing platform 2 includes a bottom plate 81, a middle plate 82, and a top plate 83 arranged in sequence; The blocking piece 84; the blocking piece 84 is provided with a riveting hole 85; the bottom of the bottom plate 81 is provided with a placement box 9; the wireless module is arranged in the placement box 9. The above configuration facilitates the placement of the wireless module, and at the same time, the top plate 83 fixes the middle plate 82 and the top plate 81 on the connecting rod assembly through the riveting holes 85 and rivets, which is convenient for assembly and disassembly.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (9)

1. A mobile crane with automatic retractable auxiliary wheels, characterized in that: it comprises a base (1), a bearing platform (2), a connecting rod assembly and a driver (3); the connecting rod assembly is located at the base ( 1) between the bearing platform (2); the two ends of the driving member (3) are respectively hinged with the base (1) and the bearing platform (2); The bottom of the base (1) is provided with moving wheels (11); the base (1) is provided with a telescopic assembly; the connecting rod assembly is used to drive the telescopic assembly to expand and contract; the bottom of the telescopic assembly is provided with auxiliary wheels ( 4). 2. A mobile crane with automatic telescopic auxiliary wheels according to claim 1, characterized in that: said telescopic assembly includes a first telescopic link (41) and a second telescopic link (42); One end of the base (1) is provided with a fixing part (5); the other end of the base (1) is provided with a chute (12); the sliding part (6) is provided on the chute (12); the One end of the first telescopic connecting rod (41) is hinged with the fixture (5); one end of the second telescopic connecting rod (42) is hinged with the slider (6); the first telescopic connecting rod (41) is hinged The other end is hinged with the other end of the second telescopic link (42); the auxiliary wheel (4) is arranged at the bottom of the first telescopic link (41) or the second telescopic link (42). 3. A mobile crane with automatic retractable auxiliary wheels according to claim 2, characterized in that: a first fixed shaft (51) is provided between the fixed part (5) and the base (1); The slider (6) includes a hinged part (61) and a sliding part (62); a second fixed shaft (63) is provided between the hinged part (61) and the sliding part (62); the hinged part ( 61) Hinged with the one end of the second telescopic link (42); the sliding part (62) is slidingly connected with the chute (12); the first fixed shaft (51) and the second fixed shaft (63) They are respectively used for rotational connection with the connecting rod assembly. 4. A mobile crane with automatic retractable auxiliary wheels according to claim 1, characterized in that: the driving member (3) is an electric push rod; the electric push rod and the load-bearing platform (2) The bottom is hinged; the output end of the electric push rod is hinged with the other end of the base (1). 5. A mobile crane with automatic retractable auxiliary wheels according to claim 1, characterized in that: the connecting rod assembly includes a first lifting assembly and a second lifting assembly; one end of the first lifting assembly It is hinged with the bearing platform (2); the other end of the first lifting assembly is hinged with one end of the second lifting assembly; the other end of the second lifting assembly is hinged with the base (1). 6. A mobile crane with automatic retractable auxiliary wheels according to claim 5, characterized in that: the first lifting assembly includes a first lifting link (71) and a second lifting link (72) ; The second lifting assembly includes a third lifting link (73) and a fourth lifting link (74); One end of the first lifting link (71) is hinged with one end of the bearing platform (2); the other end of the first lifting link (71) is hinged with one end of the third lifting link (73); the The other end of the third lifting link (73) is hinged with an end of the base (1); One end of the second lifting link (72) is hinged with the other end of the bearing platform (2); the other end of the second lifting link (72) is hinged with one end of the fourth lifting link (74); The other end of the fourth elevating link (74) is hinged with the other end of the base (1); The middle part of the first lifting link (71) is hinged with the middle part of the second lifting link (72); the middle part of the third lifting link (73) is hinged with the middle part of the fourth lifting link (74). 7. A mobile crane with automatic telescopic auxiliary wheels according to claim 1, characterized in that: the number of the telescopic assembly and the auxiliary wheels (4) is two; two telescopic assemblies and two The auxiliary wheels (4) are respectively arranged on both sides of the base (1). 8. A mobile crane with automatic telescopic auxiliary wheels according to claim 1, characterized in that: said mobile crane with automatic telescopic auxiliary wheels also includes a wireless module; said wireless module and the drive (3) Electrical connection. 9. A mobile crane with automatic retractable auxiliary wheels according to claim 8, characterized in that: the load-bearing platform (2) includes a bottom plate (81), a middle plate (82) and a top plate ( 83); the surroundings of the top plate (83) extend downwards to be provided with baffles (84); the baffles (84) are provided with riveting holes (85); the bottom of the base plate (81) is provided with a placement box ( 9); the wireless module is set in the placement box (9).

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