CN213387603U

CN213387603U - Mechanical lifting device carried on trolley

Info

Publication number: CN213387603U
Application number: CN202021886387.2U
Authority: CN
Inventors: 京谷尚士; 孙富升; 向尧
Original assignee: Daifuku China Automation Equipment Co ltd
Current assignee: Daifuku China Automation Equipment Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-06-08
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a platform truck carries on type mechanical type elevating gear, including platform truck body and lift mesa, the lift mesa pass through elevation structure connect in the surface of platform truck body, the platform truck body is equipped with unilateral bent plate chain group, switching-over pipe and guide pulley, unilateral bent plate chain group includes the unilateral bent plate chain that two flexible directions set up relatively or back on the back mutually at least, the head end of unilateral bent plate chain with the bottom surface of lift mesa is connected, the tail end of unilateral bent plate chain passes the switching-over pipe with the guide pulley is connected, the switching-over pipe will unilateral bent plate chain is vertical direction by the horizontal direction conversion. The utility model discloses need not increase platform truck weight and platform truck guider, the platform truck come-up in the time of can preventing the lifting heavy object.

Description

Mechanical lifting device carried on trolley

Technical Field

The utility model relates to a platform truck elevating gear, especially a platform truck carries on type mechanical type elevating gear.

Background

As shown in fig. 1, the conventional lifting device mounted on the cart is mainly a scissor type lifting mechanism 100, but the scissor type lifting mechanism 100 on the cart is not provided with an independent driving source, and one of the cross arms of the scissor type lifting mechanism is lifted up by a ridge 101 on the ground, so that a heavy object on the lifting mechanism is lifted up. This mechanism is fully capable of lifting and lowering a heavy object when the weight of the heavy object is small, but when the weight of the heavy object exceeds a certain value (approximately greater than the weight of the trolley), the heavy object cannot be jacked up, but the trolley is lifted up, as shown in fig. 2. The problem to be solved is that the guide mechanism for limiting the upward floating of the trolley is added to the bicycle parking garage with the self weight of the trolley, so that the operation of the trolley is not facilitated, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned prior art defect, the task of the utility model lies in providing a platform truck carries on type mechanical type elevating gear, can't be regularly made the problem that the platform truck rose when solving the heavy object overweight on the contrary.

The utility model discloses technical scheme as follows: the utility model provides a platform truck carries on type mechanical type elevating gear, includes platform truck body and lift mesa, the lift mesa pass through elevation structure connect in the surface of platform truck body, the platform truck body is equipped with unilateral bent plate chain group, switching-over pipe and guide pulley, unilateral bent plate chain group includes the relative or unilateral bent plate chain of carrying on the back mutually setting of two flexible directions at least, the head end of unilateral bent plate chain with the bottom surface of lift mesa is connected, the tail end of unilateral bent plate chain passes the switching-over pipe with the guide pulley is connected, the switching-over pipe will unilateral bent plate chain is vertical direction by the horizontal direction conversion.

Further, the reversing guide pipe comprises a vertical section and a horizontal section, and the horizontal section is arranged on the lower surface of the trolley body.

Furthermore, the horizontal section of the reversing guide pipe is perpendicular to the advancing direction of the trolley body.

Furthermore, the trolley body is provided with a guide rail, the guide wheel slides along the guide rail, and the guide rail is parallel to the horizontal section of the reversing guide pipe.

Further, the lifting structure is a scissor type lifting mechanism.

Compared with the prior art, the utility model the advantage lie in: the original vertical force for lifting the heavy object is converted into the horizontal force through the single-side bent plate chain group and the reversing guide pipe, so that the problem that the trolley body floats upwards due to the fact that the trolley body receives the vertical force is solved. The utility model discloses need not additionally increase the guiding mechanism of restriction platform truck motion or increase platform truck weight, also need not dispose the driving source on the platform truck body, overcome the overweight problem that arouses the platform truck come-up of heavy object.

Drawings

Fig. 1 is a schematic structural view of a lifting device mounted on a conventional carriage.

Fig. 2 is a schematic diagram of a trolley floating structure of a lifting device carried by a trolley in the prior art when a heavy object is overweight.

Fig. 3 is a schematic structural view of the trolley-mounted mechanical lifting device of the present invention.

Fig. 4 is a schematic plan view of the trolley-mounted mechanical lifting device of the present invention.

Fig. 5 is a schematic sectional view of a position a when the truck-mounted mechanical lifting device of the present invention is lifted.

Fig. 6 is a schematic sectional view of the position B when the carriage-mounted mechanical lifting device of the present invention is lifted.

Fig. 7 is a schematic sectional view of a position a of the carriage-mounted mechanical lifting device of the present invention when it is lowered.

Fig. 8 is a schematic cross-sectional view of the position B when the carriage-mounted mechanical lifting device of the present invention is lowered.

Detailed Description

The present invention will be further described with reference to the following examples, which should not be construed as limiting the invention.

As shown in fig. 3 and 4, the trolley-mounted mechanical lifting device of the present embodiment includes a trolley body 1 and a lifting platform 2, the lifting platform 2 is connected to the surface of the trolley body 1 through a lifting structure 3, the lifting structure 3 of the present embodiment is a scissor-type lifting mechanism, the scissor-type lifting mechanism is used to support the lifting platform 2 and provide a lifting guide, and does not play a role of actively lifting the lifting platform 2 in the prior art. Four advancing rollers 4 are provided on the bottom surface of the carriage body 1 for advancing the carriage body 1.

Still be equipped with unilateral bent plate chain group, switching-over pipe 5, guide pulley 6 and guide rail 7 on platform truck body 1, unilateral bent plate chain group includes that two flexible directions are relative or the unilateral bent plate chain 8 that sets up back to back, and two unilateral bent plate chains 8's flexible direction is relative setting in this embodiment, can bend the direction and all face towards the central axis of platform truck body 1. Each single-side bending plate chain 8 corresponds to a group of reversing guide pipes 5, guide wheels 6 and guide rails 7. The reversing conduit 5 comprises a vertical section and a horizontal section, wherein the horizontal section is arranged on the lower surface of the trolley body 1, the horizontal section is perpendicular to the advancing direction of the trolley body 1, and the vertical section penetrates through the trolley body 1 from top to bottom. The unilateral bent plate chain 8 passes through the reversing guide pipe 5 and then is converted from the vertical direction to the horizontal direction. The head end of the unilateral bending plate chain 8 is connected with the bottom surface of the lifting table top 2, and the tail end of the unilateral bending plate chain 8 passes through the reversing guide pipe 5 to be connected with the guide wheel 6. The guide wheel 6 is used for pushing the unilateral bending plate chain 8 to move in the reversing guide pipe 5 through matching with the ground lifting guide rail 9. The guide rail 7 is arranged on the surface of the trolley body 1 in parallel with the horizontal section of the reversing guide pipe 5, and the guide wheel 6 can move on the guide rail 7 through a slide block matched with the guide rail 7, namely the tail end of the unilateral bent plate chain 8 can move along the direction of the guide rail 7, namely along the horizontal section of the reversing guide pipe 5.

As shown in fig. 5 to 8, the operation of the carriage-mounted mechanical lifting device is such that the ground lifting rail 9 is provided on the ground in addition to the carriage rail 10 for guiding the carriage body 1 to travel, the ground lifting rail 9 is provided with two rails that are laid symmetrically with respect to the traveling direction of the carriage body 1 with the axis of the carriage body 1 as an axis, and the distance between the two ground lifting rails 9 is variable. When the trolley body 1 advances, the guide wheels 6 at the tail ends of the unilateral bending plate chains 8 are abutted against the ground lifting guide rails 9, the two ground lifting guide rails 9 respectively correspond to the two unilateral bending plate chains 8, when the heavy object does not need to be lifted, the distance between the ground lifting guide rails 9 is large, the length of the unilateral bending plate chains 8 in the horizontal state is long, the length of the unilateral bending plate chains in the vertical state is short, and the lifting table board 2 is in the low position. At the position that needs the lifting heavy object, along with platform truck body 1 marchs, ground lift rail 9's interval narrows down gradually, and guide pulley 6 slides along guide rail 7 under ground lift rail 9 effect, and the length that unilateral bent plate chain 8 is in the horizontality shortens, and the length that is in vertical state lengthens, because the flexible direction of two unilateral bent plate chains 8 is relative setting, consequently can be with lift mesa 2 jack-up, and then reach the purpose of lifting the heavy object. After the weight is lifted, the distance between the ground lifting guide rails 9 is widened when the weight does not need to be lifted any more, the length of the one-side bent plate chain 8 in the horizontal state is lengthened and the length of the one-side bent plate chain 8 in the vertical state is shortened under the action of the gravity of the weight, and the lifting table top 2 finishes the descending action.

Claims

1. The utility model provides a platform truck carries on type mechanical type elevating gear, includes platform truck body and lift mesa, its characterized in that, the lift mesa pass through elevation structure connect in the surface of platform truck body, the platform truck body is equipped with unilateral bent plate chain group, switching-over pipe and guide pulley, unilateral bent plate chain group includes the unilateral bent plate chain that two flexible directions set up relatively or back on the back mutually at least, the head end of unilateral bent plate chain with the bottom surface of lift mesa is connected, the tail end of unilateral bent plate chain passes the switching-over pipe with the guide pulley is connected, the switching-over pipe will unilateral bent plate chain is vertical direction by the horizontal direction conversion.

2. The trolley-mounted mechanical lifting device according to claim 1, wherein the reversing guide pipe includes a vertical section and a horizontal section, and the horizontal section is provided on a lower surface of the trolley body.

3. The carriage-mounted mechanical lifting device according to claim 2, wherein a horizontal section of the reversing duct is provided perpendicular to a traveling direction of the carriage body.

4. The trolley-mounted mechanical lifting device as claimed in claim 2, wherein the trolley body is provided with a guide rail along which the guide wheel slides, and the guide rail is disposed in parallel with the horizontal section of the reversing guide pipe.

5. The mechanical lifting device according to claim 1, wherein the lifting structure is a scissor lift mechanism.