CN214327052U

CN214327052U - Movable hydraulic lifting device

Info

Publication number: CN214327052U
Application number: CN202022618208.3U
Authority: CN
Inventors: 赵卫华
Original assignee: Chongqing Southwest Pneumatic Hydraulic Co ltd
Current assignee: Chongqing Southwest Pneumatic Hydraulic Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-10-01
Anticipated expiration: 2030-11-13

Abstract

The utility model provides a portable hydraulic pressure elevating gear, including work platform, moving platform, cut fork elevating system and telescopic machanism, telescopic machanism includes driving motor, drive gear and two support arms, and driving motor installs on moving platform, and the support arm includes first armed lever and second armed lever, and first armed lever and second armed lever all slide along the width direction that is on a parallel with moving platform and set up on moving platform, and the second armed lever is far away first armed lever end and is rotated and be connected with the adjustable rotatory landing leg mechanism that is level or vertical state. Two second armed levers of the movable hydraulic lifting device can be synchronously stretched and contracted all the time, and the rotating leg mechanisms can be effectively prevented from being staggered at the middle positions of the length direction of the mobile platform by designing the rotating leg mechanisms, so that the rotating leg mechanisms are more uniformly stressed during working, and the lifting device is more stable and safe during lifting.

Description

Movable hydraulic lifting device

Technical Field

The utility model relates to a jacking equipment technical field, concretely relates to portable hydraulic pressure elevating gear.

Background

The lifter has wide application in production and life, particularly a scissor lifter, has the advantages of small occupied space, low cost and the like, and is widely applied.

Cut fork lift and rise usually in vertical direction, drive folding flexible the realizing operation platform's that cuts the fork arm through the pneumatic cylinder and reciprocate, convenient operation, but current cut fork arm lift if produce when the location operation and slide, the potential safety hazard is big, generally need add the stability of establishing the landing leg and increasing whole platform. At present, the landing leg arm generally adopts flexible or revolution mechanic, but all have dislocation or asynchronous problem when stretching out to, conventional landing leg exists the problem that can not rotate, thereby is not convenient for accomodate and adjust.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a portable hydraulic pressure elevating gear.

In order to achieve the purpose, the utility model provides a movable hydraulic lifting device, which comprises an operation platform and a movable platform which are arranged up and down, wherein a scissor lifting mechanism is arranged between the operation platform and the movable platform, the movable hydraulic lifting device also comprises a telescopic mechanism, the telescopic mechanism comprises a driving motor, a driving gear and two support arms, the driving motor is arranged on the movable platform, the driving gear is rotationally connected to the central position of the movable platform and is connected with an output shaft of the driving motor, and the rotating plane of the driving gear is parallel to the table top of the movable platform;

the support arm comprises a first arm rod and a second arm rod, the first arm rod and the second arm rod are both arranged on the mobile platform in a sliding mode along the width direction parallel to the mobile platform, and the first arm rod is in meshing transmission with the driving gear; the second arm lever is positioned in the middle of the moving platform in the length direction, the second arm lever is connected to the first arm lever, and the driving gear is used for driving the two second arm levers to synchronously move towards or away from each other; the second arm rod is connected with a rotary supporting leg mechanism which is adjustable to be in a horizontal or vertical state far away from the end of the first arm rod in a rotating mode.

Preferably, the first arm rod is of an L-shaped structure and comprises a long rod body and a short rod body, a rack is arranged on one surface of the long rod body facing the driving gear, and the rack is meshed with the driving gear; the movable platform is provided with a first guide rail and a second guide rail along the width direction of the movable platform, the long rod body is in sliding fit on the first guide rail, the second arm rod is in sliding fit on the second guide rail, and the second arm rod is connected on one side of the short rod body, which deviates from the driving gear.

Preferably, the rotary support leg mechanism comprises a rotary seat, a screw rod and a support plate, the rotary seat is rotatably connected to the end of the second arm rod far away from the first arm rod, the screw rod penetrates through the rotary seat and is in threaded connection with the rotary seat, and the support plate is arranged at the bottom end of the screw rod; and the second arm rod is provided with a rotation stopping mechanism, and the rotation stopping mechanism is used for keeping the screw rod in a horizontal or vertical state.

Preferably, the rotation stopping mechanism comprises a guide rod, a sliding plate and an insertion rod, wherein an accommodating cavity penetrates through the second arm rod, the guide rod is arranged in the accommodating cavity along the length direction parallel to the second arm rod, the sliding plate is in sliding fit with the guide rod, an elastic part is sleeved on the guide rod in a penetrating manner, and two ends of the elastic part are respectively connected with the cavity walls of the sliding plate and the far sliding plate of the accommodating cavity;

two ends of the sliding plate respectively extend out of the accommodating cavity and are connected with the inserted rod, and the inserted rod is arranged along the length direction parallel to the second arm rod; one side of the rotating seat facing the moving platform is provided with four limiting holes in fit with the inserted rods, and the four limiting holes are arranged in an annular array along the central axis of the rotating seat.

Preferably, the guide rods are two, the two guide rods are arranged in parallel, the sliding plate is in sliding fit with the two guide rods, and the two ends of the sliding plate are respectively provided with the handle rods.

Preferably, a groove is formed in one end, close to the rotary seat, of the second arm lever, two bearings are arranged in the groove, and the rotary seat is fixed in the two bearings through a rotating shaft to be rotatably connected with the second arm lever.

Preferably, the top end of the screw is provided with an operating runner.

Preferably, one side of the bottom of the moving platform is provided with two universal wheels, and the other side of the bottom of the moving platform is provided with two directional wheels.

Preferably, a bottom plate is arranged on the moving platform and positioned above the telescopic mechanism, the scissor lifting mechanism comprises two lifting units, the two lifting units are arranged between the bottom plate and the operation platform, and the two lifting units are connected through a fulcrum shaft; the lifting unit comprises two lifting rods, the middle parts of the two lifting rods are hinged in a crossed mode through pin shafts, one end of one lifting rod is hinged to the moving platform, and the other end of the lifting rod is movably connected to the bottom plate; one end of the other lifting rod is hinged on the bottom plate, and the other end of the other lifting rod is movably connected on the movable platform; the hydraulic cylinder is arranged on the bottom plate, and an output shaft of the hydraulic cylinder is connected with the fulcrum shaft through a push rod.

The utility model has the advantages that:

the utility model discloses a portable hydraulic pressure elevating gear, it has telescopic machanism in mobile platform overhead design, because two second armed levers are located mobile platform width direction's both sides respectively, and be in mobile platform length direction's intermediate position, when drive gear and two first armed lever meshing transmissions, can drive two second armed levers and do the synchronous action of keeping away from, make two rotatory landing leg mechanisms stretch out from the intermediate position of mobile platform both sides simultaneously, the support that mobile platform was realized to the rethread adjustment, thereby reach the purpose that promotes whole elevating gear stability. Simultaneously, through rotating rotatory landing leg mechanism and connecting on the second armed lever, can rationally effectually accomodate to rotatory landing leg mechanism to and swift adjustment installation is used, improved the practicality greatly.

Two second armed levers of the movable hydraulic lifting device can be synchronously stretched and contracted all the time, and the rotating leg mechanisms can be effectively prevented from being staggered at the middle positions of the length direction of the mobile platform by designing the rotating leg mechanisms, so that the rotating leg mechanisms are more uniformly stressed during working, and the lifting device is more stable and safe during lifting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a mobile hydraulic lifting device according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the screw in a vertical position;

FIG. 4 is a schematic view of a spacing hole;

FIG. 5 is a schematic horizontal cross-sectional view of the state of FIG. 3;

FIG. 6 is a schematic view of the inserted link exiting the limiting hole;

fig. 7 is a schematic structural view of the screw in a horizontal state.

Reference numerals:

1-operation platform, 2-moving platform, 3-lifting rod, 4-telescoping mechanism, 41-driving motor, 42-driving gear, 43-first arm rod, 431-long rod body, 432-short rod body, 44-second arm rod, 441-containing cavity, 442-groove, 45-rack, 5-rotary leg mechanism, 51-rotary seat, 52-screw rod, 53-supporting disk, 54-operation rotating wheel, 55-limiting hole, 56-rotating shaft, 6-rotation stopping mechanism, 61-guide rod, 62-sliding plate, 63-inserted rod, 64-elastic part, 65-handle rod, 7-bearing, 81-universal wheel, 82-orientation wheel, 9-bottom plate and 10-hydraulic cylinder.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-7, the utility model provides a mobile hydraulic lifting device, including being work platform 1 and the moving platform 2 that arrange from top to bottom, be equipped with between work platform 1 and the moving platform 2 and cut fork elevating system, still include telescopic machanism 4, telescopic machanism 4 includes driving motor 41, drive gear 42 and two support arms, driving motor 41 installs on moving platform 2, drive gear 42 rotates to be connected at the central point of moving platform 2 and with the output shaft of driving motor 41, the rotation plane of drive gear 42 is parallel with the mesa of moving platform 2; the support arm comprises a first arm lever 43 and a second arm lever 44, the first arm lever 43 and the second arm lever 44 are arranged on the moving platform 2 in a sliding mode along the width direction parallel to the moving platform 2, and the first arm lever 43 is in meshing transmission with the driving gear 42; the second arm lever 44 is located at the middle position of the moving platform 2 in the length direction, the second arm lever 44 is connected to the first arm lever 43, and the driving gear 42 is used for driving the two second arm levers 44 to synchronously move towards or away from each other; the end of the second arm lever 44 far away from the first arm lever 43 is rotatably connected with a rotating leg mechanism 5 which can be adjusted to be in a horizontal or vertical state.

The utility model discloses a portable hydraulic pressure elevating gear, it has telescopic machanism 4 in mobile platform 2 overhead design, because two second armed levers 44 are located 2 width direction's of mobile platform both sides respectively, and be in 2 length direction's of mobile platform intermediate position, when drive gear 42 and two first armed lever 43 meshing transmission, can drive two second armed levers 44 and do the synchronous action of keeping away from, make two rotary leg mechanism 5 stretch out from the intermediate position of 2 both sides of mobile platform respectively, the support of mobile platform 2 is realized to the rethread adjustment, thereby reach the purpose that promotes whole elevating gear stability. Meanwhile, the rotary leg mechanism 5 is rotatably connected to the second arm rod 44, so that the rotary leg mechanism 5 can be reasonably and effectively stored, and the rotary leg mechanism can be quickly adjusted, installed and used, and the practicability is greatly improved.

Two second armed levers 44 of this portable hydraulic lifting device can keep synchronous flexible all the time, through with rotatory landing leg mechanism 5 design on moving platform 2 length direction's intermediate position, can prevent the dislocation of the rotatory landing leg mechanism 5 of both sides effectively to make rotatory landing leg mechanism 5 more even at the during operation atress, also make this elevating gear more stable, safe when carrying out the lift action.

In an embodiment, the first arm 43 is in an L-shaped configuration, the first arm 43 includes a long rod 431 and a short rod 432, a rack 45 is disposed on a side of the long rod 431 facing the driving gear 42, and the rack 45 is engaged with the driving gear 42; the moving platform 2 is provided with a first guide rail and a second guide rail along the width direction thereof, the long rod body 431 is in sliding fit on the first guide rail, the second arm lever 44 is in sliding fit on the second guide rail, and the second arm lever 44 is connected on one side of the short rod body 432 departing from the driving gear 42. When the driving motor 41 drives the driving gear 42 to rotate, because the two first arm levers 43 are located at two sides of the driving gear 42, the driving gear 42 can be in meshing transmission with the rack 45 on each first arm lever 43, so as to drive the two first arm levers 43 to move in opposite directions, and further drive the second arm lever 44 to move synchronously close to or far away from each other. By slidably mounting the long rod body 431 on the first guide rail and slidably mounting the second arm 44 on the second guide rail, the sliding stability of the long rod body 431 and the second arm 44 can be improved, and at the same time, the rack 45 is prevented from being disengaged from the driving gear 42.

In a specific embodiment, the rotary leg mechanism 5 includes a rotary seat 51, a screw 52 and a supporting plate 53, the rotary seat 51 is rotatably connected to the end of the second arm 44 far from the first arm 43, the screw 52 penetrates through the rotary seat 51 and is in threaded connection with the rotary seat 51, and the supporting plate 53 is arranged at the bottom end of the screw 52; the second arm 44 is provided with a rotation stop mechanism 6, and the rotation stop mechanism 6 is used for keeping the screw 52 in a horizontal or vertical state. After two rotary supporting leg mechanisms 5 are respectively extended out from the middle positions of two sides of the moving platform 2, the screw rod 52 is rotated through operation, so that the screw rod 52 is in threaded fit with the rotating seat 51 to drive the supporting plate 53 to be supported on the ground, and the supporting of the moving platform 2 is realized, so that the purpose of improving the stability of the whole lifting device is achieved. Simultaneously, through the design spline mechanism 6, can lock after roating seat 51 is rotatory to make screw rod 52 keep at a level or vertical state, thereby carry out reasonable effectual accomodating to pairing rotation landing leg mechanism 5, and swift adjustment installation is used, improved the practicality greatly.

Specifically, the rotation stopping mechanism 6 comprises a guide rod 61, a sliding plate 62 and an insertion rod 63, wherein an accommodating cavity 441 penetrates through the second arm 44, the guide rod 61 is arranged in the accommodating cavity 441 along a length direction parallel to the second arm 44, the sliding plate 62 is in sliding fit with the guide rod 61, an elastic member 64 is sleeved on the guide rod 61 in a penetrating manner, and two ends of the elastic member 64 are respectively connected with the sliding plate 62 and the cavity wall of the sliding plate 62 far away from the accommodating cavity 441; the two ends of the sliding plate 62 respectively extend out of the accommodating cavity 441 and are connected with an inserting rod 63, and the inserting rod 63 is arranged in the length direction parallel to the second arm rod 44; one side of the rotating base 51 facing the moving platform 2 is provided with four limiting holes 55 in form fit with the inserted rods 63, and the four limiting holes 55 are arranged in an annular array along the central axis of the rotating base 51.

When the screw 52 is in a horizontal position and needs to be supported by the support plate 53, the sliding plate 62 is pulled to move along the guide rod 61 and further compress the elastic element 64, so that the two insertion rods 63 exit out of the limit holes 55 of the rotary base 51, at this time, the rotary base 51 can be rotated ninety degrees, so that the other two limit holes 55 are aligned with the insertion rods 63, after the alignment, the insertion rods 63 are inserted into the two limit holes 55, the rotary base 51 can not rotate any more, the support plate 53 is driven to be supported on the ground by operating the rotation of the screw 52, and the support of the mobile platform 2 is realized,

after the use, the screw 52 is rotated to lift the support plate 53 to a height capable of rotating, the screw 52 is rotated to a horizontal position according to the above operation, and the rotary base 51 is locked by the insertion rod 63, so that the whole rotary leg mechanism 5 can be accommodated. Through the design of the rotation stopping mechanism 6, the height of the supporting disc 53 is not required to be increased by excessively rotating the screw 52 so as to avoid scraping and rubbing of the supporting disc 53 and ground obstacles, reasonable and effective storage can be realized through the matching of the rotary seat 51 and the rotation stopping mechanism 6, and the rotation stopping mechanism is quickly adjusted, installed and used, so that the practicability is greatly improved.

In order to improve the sliding stability of the sliding plate 62, two guide rods 61 are provided, the two guide rods 61 are arranged in parallel, the sliding plate 62 is in sliding fit with the two guide rods 61, and two ends of the sliding plate 62 are respectively provided with a handle rod 65. Meanwhile, in order to facilitate the rotation of the operating screw 52, an operating runner 54 is provided at the tip of the screw 52.

In an embodiment, a groove 442 is formed at an end of the second arm 44 close to the rotary seat 51, two bearings 7 are disposed in the groove 442, and the rotary seat 51 is fixed in the two bearings 7 through a rotating shaft to achieve a rotational connection with the second arm 44.

In one embodiment, two universal wheels 81 are provided on one side of the bottom of the mobile platform 2 and two directional wheels 82 are provided on the other side of the bottom of the mobile platform 2. This design can be convenient for this portable hydraulic pressure elevating gear removes, has enough to meet the need in the place.

In a specific embodiment, the moving platform 2 is provided with a bottom plate 9, the bottom plate 9 is positioned above the telescopic mechanism 4, the scissor lifting mechanism comprises two lifting units, the two lifting units are arranged between the bottom plate 9 and the working platform 1, and the two lifting units are connected through a fulcrum; the lifting unit comprises two lifting rods 3, the middle parts of the two lifting rods 3 are hinged in a crossed manner through pin shafts, one end of one lifting rod 3 is hinged to the movable platform 2, and the other end of the lifting rod 3 is movably connected to the bottom plate 9; one end of the other lifting rod 3 is hinged on the bottom plate 9, and the other end is movably connected on the movable platform 2; the hydraulic cylinder 10 is arranged on the bottom plate 9, and an output shaft of the hydraulic cylinder 10 is connected with the fulcrum shaft through a push rod. The hydraulic cylinder 10 pushes or pulls the fulcrum shaft by a push rod, and relatively rotates the lifting lever 3 cross-hinged from the two lifting units, thereby moving the work platform 1 away from or close to the base plate 9 in the height direction, and completing the lifting operation.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a portable hydraulic pressure elevating gear, is including being operation platform and the moving platform that arranges from top to bottom, operation platform with be equipped with between the moving platform and cut fork elevating system, its characterized in that:

the telescopic mechanism comprises a driving motor, a driving gear and two support arms, the driving motor is mounted on the moving platform, the driving gear is rotatably connected to the center of the moving platform and connected with an output shaft of the driving motor, and a rotating plane of the driving gear is parallel to a table top of the moving platform;

the support arm comprises a first arm rod and a second arm rod, the first arm rod and the second arm rod are both arranged on the mobile platform in a sliding mode along the width direction parallel to the mobile platform, and the first arm rod is in meshing transmission with the driving gear; the second arm lever is positioned in the middle of the moving platform in the length direction, the second arm lever is connected to the first arm lever, and the driving gear is used for driving the two second arm levers to synchronously move towards or away from each other;

the second arm rod is connected with a rotary supporting leg mechanism which is adjustable to be in a horizontal or vertical state far away from the end of the first arm rod in a rotating mode.

2. The lifting device according to claim 1, characterized in that:

the first arm rod is of an L-shaped structure and comprises a long rod body and a short rod body, a rack is arranged on one surface of the long rod body facing the driving gear, and the rack is meshed with the driving gear; the movable platform is provided with a first guide rail and a second guide rail along the width direction of the movable platform, the long rod body is in sliding fit on the first guide rail, the second arm rod is in sliding fit on the second guide rail, and the second arm rod is connected on one side of the short rod body, which deviates from the driving gear.

3. The lifting device according to claim 1, characterized in that:

the rotary support leg mechanism comprises a rotary seat, a screw and a support plate, the rotary seat is rotatably connected to the end, far away from the first arm rod, of the second arm rod, the screw penetrates through the rotary seat and is in threaded connection with the rotary seat, and the support plate is arranged at the bottom end of the screw;

and the second arm rod is provided with a rotation stopping mechanism, and the rotation stopping mechanism is used for keeping the screw rod in a horizontal or vertical state.

4. The lifting device according to claim 3, characterized in that:

the rotation stopping mechanism comprises a guide rod, a sliding plate and an inserting rod, wherein an accommodating cavity penetrates through the second arm rod, the guide rod is arranged in the accommodating cavity along the direction parallel to the length direction of the second arm rod, the sliding plate is in sliding fit with the guide rod, an elastic part is sleeved on the guide rod in a penetrating manner, and two ends of the elastic part are respectively connected with the cavity walls of the sliding plate and the sliding plate far away from the accommodating cavity;

5. The lifting device according to claim 4, characterized in that:

the guide rods are arranged in parallel, the sliding plate is in sliding fit with the two guide rods, and the two ends of the sliding plate are respectively provided with a handle rod.

6. The lifting device according to claim 4, characterized in that:

one end of the second arm rod, which is close to the rotary seat, is provided with a groove, two bearings are arranged in the groove, and the rotary seat is fixed in the two bearings through a rotating shaft to be rotatably connected with the second arm rod.

7. The lifting device according to claim 3, characterized in that:

and an operating rotating wheel is arranged at the top end of the screw rod.

8. The lifting device according to claim 1, characterized in that:

and two universal wheels are arranged on one side of the bottom of the moving platform, and two directional wheels are arranged on the other side of the bottom of the moving platform.

9. The lifting device according to claim 1, characterized in that:

the movable platform is provided with a bottom plate, and the bottom plate is positioned above the telescopic mechanism;

the scissor lifting mechanism comprises two lifting units, the two lifting units are arranged between the bottom plate and the operation platform, and the two lifting units are connected through a fulcrum shaft; the lifting unit comprises two lifting rods, the middle parts of the two lifting rods are hinged in a crossed mode through pin shafts, one end of one lifting rod is hinged to the moving platform, and the other end of the lifting rod is movably connected to the bottom plate; one end of the other lifting rod is hinged on the bottom plate, and the other end of the other lifting rod is movably connected on the movable platform;

the hydraulic cylinder is arranged on the bottom plate, and an output shaft of the hydraulic cylinder is connected with the fulcrum shaft through a push rod.