CN215828296U

CN215828296U - Lifting device

Info

Publication number: CN215828296U
Application number: CN202022374945.3U
Authority: CN
Inventors: 李国良
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2022-02-15
Anticipated expiration: 2030-10-22

Abstract

The utility model provides a lifting device, which comprises a lifting unit, a workbench arranged on the lifting unit, a support fixedly arranged on the workbench, and a workpiece fixing part arranged on the support, wherein the workbench can be driven by the lifting unit to lift and descend, a driving device is fixedly arranged on the support, a transmission unit is arranged between the driving device and the workpiece fixing part, and the workpiece fixing part can be driven by the driving device to convert between a transportation state which is parallel to the workbench and a working state which is vertical relative to the workbench due to the transmission of the transmission unit. The lifting device can reduce the labor intensity of users and has better practicability.

Description

Lifting device

Technical Field

The utility model relates to the technical field of lifting equipment, in particular to a lifting device.

Background

The equipment such as the tablet and part of the billboard may need to be installed on the higher position of the building, the installer usually needs to install by means of the lifting equipment, at this time, the billboard needs to be placed on the workbench above the lifting equipment, the installer also needs to stand on the workbench, the installer and the billboard on the workbench are driven by the lifting equipment to rise to a certain height, after rising to a certain height, the installer lifts the billboard and the like for installation, in the installation process of the billboard, one to two installers usually need to lift the billboard and the like, and then the other installer installs the billboard and the like on the building; because the advertising board and the like are possibly heavy, the labor intensity is higher for an installer lifting the advertising board; and the installation can be completed by a plurality of installers by the existing lifting device, so that the labor cost is higher.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a lifting device, which can lift a workpiece by the lifting device itself, and reduce the labor intensity of an installer.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a lifting device comprises a lifting unit, a workbench arranged on the lifting unit, a support fixedly arranged on the workbench, and a workpiece fixing part arranged on the support, wherein the workbench is driven by the lifting unit to be lifted and lowered, a driving device is fixedly arranged on the support, a transmission unit is arranged between the driving device and the workpiece fixing part, and the workpiece fixing part can be driven by the driving device to be converted between a transportation state which is parallel to the workbench and a working state which is vertical to the workbench due to transmission of the transmission unit.

Furthermore, a first mounting platform is arranged on the lifting unit, a first driving unit is arranged on the first mounting platform, and the first driving unit is in driving connection with the workbench and used for driving the workbench to move along the longitudinal direction of the lifting unit.

Furthermore, a second mounting platform is fixedly arranged on the lifting unit, the first mounting platform is arranged on the second mounting platform, a second driving unit is arranged on the second mounting platform, and the second driving unit is in driving connection with the first mounting platform and used for driving the first mounting platform to move along the transverse direction of the lifting unit.

Furthermore, the second driving unit comprises a first rotary power output unit fixedly arranged on the second mounting platform, a power output end of the first rotary power output unit is rotatably arranged on the second mounting platform and is in transmission connection with the power output end of the first rotary power output unit so as to be capable of bearing a first lead screw which is driven by the first rotary power output unit and rotates, and a nut fixedly arranged on the first mounting platform and is in threaded connection with the first lead screw, and the axial direction of the first lead screw is parallel to the transverse direction of the lifting unit.

Furthermore, the second mounting platform comprises two guide wheel units which are rotatably arranged on the lifting unit and are respectively arranged on two sides of the lifting unit, and each guide wheel unit comprises two guide wheels which are arranged along the transverse direction of the lifting unit at intervals.

Furthermore, the first mounting platform comprises two cross beams which are arranged in parallel and at intervals, and a plurality of longitudinal beams which are fixedly connected between the two cross beams; and sliding grooves are formed in the side surface of each cross beam, which is opposite to the other cross beam, and the two sliding grooves are used for respectively clamping each guide wheel unit.

Further, the workpiece fixing portion is provided to be capable of standing with respect to the table after being translated by a distance with respect to the table by the driving means.

Further, the bracket is fixedly provided with a fixed shaft, a guide groove into which the fixed shaft can be inserted is formed in the workpiece fixing part, the guide groove extends from one end of the workpiece fixing part to the middle of the workpiece fixing part, the fixed shaft can slide in the guide groove to enable the workpiece fixing part to translate relative to the bracket, and after the fixed shaft moves to the tail end of the guide groove, the workpiece part can stand relative to the workbench.

Furthermore, the driving device comprises a second rotary power output unit fixedly arranged on the bracket and a mounting seat driven by the second rotary power output unit to move along a straight line; the transmission unit comprises a connecting rod, one end of the connecting rod is hinged to the mounting seat, and the other end of the connecting rod is hinged to the workpiece fixing part.

Furthermore, the driving device further comprises a second lead screw which is rotatably arranged on the support and can be driven by the second rotary power output unit to rotate, and the mounting seat is spirally connected to the second lead screw.

Compared with the prior art, the utility model has the following advantages:

(1) the lifting device of the utility model can reduce the requirement of the number of installation personnel and reduce the labor intensity of the working personnel by arranging the bracket on the working platform which is driven by the lifting unit to lift and descend and arranging the workpiece fixing part on the bracket, and driving the workpiece to be switched between a transportation state which is parallel to the working platform and a working state which is vertical relative to the working platform by the workpiece fixing part, namely, replacing the installation personnel with the workpiece fixing part to finish the lifting of the workpiece.

(2) The first mounting platform is arranged on the lifting unit, and the workbench can move on the first mounting platform along the longitudinal direction of the lifting unit, so that the position of a workpiece on the lifting unit can be adjusted along the longitudinal direction of the lifting unit, and the workpiece is convenient to mount.

(3) The second mounting platform is arranged on the lifting unit, and the first mounting platform can move on the second mounting platform along the transverse direction of the lifting unit, so that the position of the workpiece on the lifting unit can be adjusted along the transverse direction of the lifting unit, and the workpiece can be further conveniently mounted.

(4) The workpiece fixing part is arranged to be vertically erected relative to the workbench after being translated relative to the workbench, so that installation and operation of workers are facilitated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an isometric view of a lifting device with a workpiece holding portion in a transport state according to an embodiment of the utility model;

FIG. 2 is an isometric view of the elevator assembly with the workpiece holding portion in an operative condition according to an embodiment of the present invention;

fig. 3 is an exploded view of the lifting unit and the first mounting platform according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second driving unit according to an embodiment of the utility model;

FIG. 5 is a cross-sectional view of a table in accordance with an embodiment of the present invention in cooperation with a first mounting platform;

FIG. 6 is an enlarged view taken at A in FIG. 5;

FIG. 7 is an enlarged view at B in FIG. 2;

FIG. 8 is a schematic view of the engagement of the driving device with the workpiece-securing portion;

FIG. 9 is an enlarged view at C of FIG. 1;

fig. 10 is an enlarged view at D in fig. 1.

Description of reference numerals:

1-lifting unit, 2-workbench, 21-bracket, 22-fixed shaft, 201-groove, 202-guide sliding groove, 3-workpiece fixing part, 301-guide groove, 4-second mounting platform, 41-connecting beam, 42-guide wheel, 43-fixed beam, 44-first lead screw, 401-first connecting hole, 402-second connecting hole, 5-first mounting platform, 51-cross beam, 52-longitudinal beam, 53-roller, 501-sliding groove, 502-threaded hole, 61-mounting seat, 62-second lead screw, 63-driving double-row sprocket, 64-driven double-row sprocket, 7-connecting rod and 8-clamping rod.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Several embodiments of the utility model are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiment relates to a lifting device, refer to fig. 1 and 2, it includes lifting unit 1, locate the work level 2 on the lifting unit 1, the work level 2 can be driven by the lifting unit 1 and rise or descend 2, the lifting device also includes the support 21 fixed on work level 2, and locate the work piece fixed part 3 on the support 21, and the support 21 is fixed with the drive unit, there are drive units between work piece fixed part 3 and the drive unit, because of the drive unit, the work piece fixed part 3 can be driven by the drive unit and changed between the transport state that is level with the work level 2, and the working state that stands relative to the work level 2.

In this embodiment, the lifting unit 1 employs a scissor-type lifting device, which includes a plurality of hinged rods hinged to each other, and a telescopic device disposed between the hinged rods, so that the telescopic device stretches and retracts to drive the hinged rods to rotate relative to each other, thereby completing the lifting action of the lifting device; obviously, the lifting unit 1 may also adopt a screw rod type lifting device or a lifting device with other structure, and only needs to drive the workbench 2 to lift, and as for the specific structure of the scissor type lifting device or the lifting device with other structure, reference may be made to the existing mature technology, and details are not described here.

In this embodiment, the lifting unit 1 is provided with a first mounting platform 5, the first mounting platform 5 is fixedly provided with a first driving unit, and the first driving unit is in driving connection with the working platform 2 and is used for driving the working platform 2 to move along the longitudinal direction of the lifting unit 1; still set firmly second mounting platform 4 on elevating unit 1, first mounting platform 5 is installed on second mounting platform 4, and has set firmly the second drive unit on second mounting platform 4, and the second drive unit is connected with the drive of first mounting platform 5 for order about the lateral shifting of first mounting platform 5 along elevating unit 1.

Referring to fig. 3, the second mounting platform 4 of the present embodiment includes two connecting beams 41 disposed on two opposite sides of the lifting unit 1, and each connecting beam 41 is mounted on the lifting unit 1 in the following manner: two hinged rods hinged at the top end of the lifting unit 1 are respectively and fixedly provided with a rotating shaft extending outwards, two ends of the connecting beam 41 are correspondingly and respectively provided with a connecting hole, one of the two connecting holes is a round hole and is called as a first connecting hole 401 in the following description, and the first connecting hole 401 is rotatably sleeved on one of the two rotating shafts; one of the two connecting holes is a long hole, which will be referred to as a second connecting hole 402 hereinafter, and the second connecting hole 402 is sleeved on the other of the two rotating shafts and can allow the rotating shaft to move along the length direction thereof. The second mounting platform 4 of this embodiment further includes guide wheels 42 respectively rotatably sleeved on the rotating shafts and located outside the connecting beam 41.

In this embodiment, referring to fig. 3, the first mounting platform 5 includes two cross beams 51 arranged in parallel and at an interval, and a plurality of longitudinal beams 52 fixedly connected between the two cross beams 51, in this embodiment, the number of the longitudinal beams 52 is specifically three, and obviously, it may also be four or more; on the inner side of the two transverse beams 51, a respective slide groove 501 is formed, into which the guide wheel 42 described above can be inserted in each slide groove 501, so that the first mounting platform 5 can be displaced in the transverse direction of the lifting unit 1 as a result of the sliding movement of the slide groove 501 on the guide wheel 42.

In this embodiment, referring to fig. 3 and 4, a plurality of fixed beams 43 are arranged between two connecting beams 41 at parallel intervals, two ends of each fixed beam 43 are respectively and fixedly connected with the two connecting beams 41, the second driving unit specifically includes a first rotary power output unit fixedly mounted on one of the fixed beams 43, a first lead screw 44 rotatably mounted on the second mounting platform 4 and connected with a power output end of the first rotary power output unit, and a nut fixedly mounted on the first mounting platform 5 and screwed with the lead screw, and an axial direction of the first lead screw 44 is parallel to a transverse direction of the lifting unit 1.

Specifically, the first rotary power output unit includes a first motor fixedly disposed on the fixed beam 43, the first lead screw 44 is in transmission connection with a motor shaft of the first motor, for example, through gear transmission connection, sprocket transmission connection, or through other transmission connection, and only the rotation of the motor shaft is required to drive the first lead screw 44 to rotate; a threaded hole 502 to which the first lead screw 44 is screwed is formed in one of the longitudinal beams 52 of the first mounting platform 5, and the longitudinal beam 52 formed with the threaded hole 502 constitutes the nut; based on the above structure, the motor shaft of the first motor can rotate to drive the first lead screw 44 to rotate, and the first lead screw can rotate to drive the longitudinal beam 52, that is, the first mounting platform 5 to move along the axial direction of the first lead screw 44, that is, along the transverse direction of the lifting unit 1.

In this embodiment, referring to fig. 1, 5 and 6, the workbench 2 is configured with two grooves 201, the two grooves 201 are arranged at intervals along the transverse direction of the lifting unit 1, and a guide chute 202 is configured on one side wall of each groove 201; corresponding to each guiding chute 202, two longitudinal beams 52 of the first platform are respectively rotatably provided with a roller 53, each roller 53 can roll in the guiding chute 202, so that the working platform 2 can move along the longitudinal direction of the lifting unit 1, and for the specific structure of the first driving unit between the first mounting platform 5 and the working platform 2, reference can be made to the structure of the second driving unit, which is not described herein again.

In this embodiment, the support 21 specifically includes a plurality of upright columns fixed on the worktable 2 and extending upward, and a plurality of transverse columns connected between the upright columns, and each upright column and transverse column enclose a rectangular frame; the workpiece fixing part 3 is in a square frame shape formed by welding square pipes; when the workpiece fixing portion 3 is in a transport state, as shown in fig. 1, the workpiece fixing portion 3 is horizontally fixed to the top end face of the frame, and when the workpiece fixing portion 3 is in an operating state, as shown in fig. 2, it means that one side of the workpiece fixing portion 3 is rotated around the bracket 21 so that the workpiece fixing portion 3 is orthogonal to the table 2; it should be noted that the horizontal and orthogonal described in the present embodiment should not be construed as being completely horizontal and orthogonal as long as the workpiece fixing portion 3 is located at a different position between the time of transportation and the time of installation and the workpiece fixing portion 3 is located at a position convenient for the installation of the workpiece, which should be considered the same as the solution of the present embodiment.

In this embodiment, the process of converting the workpiece fixing portion 3 from the transportation state to the working state specifically includes: the workpiece fixing part 3 is driven by the driving device to be capable of being translated for a distance relative to the workbench 2 and then erected relative to the workbench 2, and the workpiece is enabled to have a more appropriate height and convenient to install by arranging the workpiece fixing part 3 to be translated for a distance relative to the workbench 2 and then erected relative to the workbench 2.

In a specific structure, referring to fig. 2 and 7, the fixed shafts 22 are fixedly arranged on the bracket 21, and the fixed shafts 22 are two fixed shafts arranged on two opposite sides of the workpiece fixing portion 3; correspondingly, the square pipes at two opposite sides of the workpiece fixing part 3 are respectively provided with a guide groove 301 for the fixed shaft 22 to penetrate, and the guide groove 301 extends from one end of the workpiece fixing part 3 to the middle part of the workpiece fixing part 3; when the workpiece fixing portion 3 is driven by the driving device, the fixing shaft 22 first slides in the guide groove 301, and after the fixing shaft 22 slides to the end of the guide groove 301, the workpiece fixing portion 3 rotates around the fixing shaft 22 as the rotation center.

In this embodiment, the driving device includes a second rotary power output unit fixed on the bracket 21, and a mounting seat 61 driven by the second rotary power output unit and capable of moving linearly; the transmission unit includes that one end is articulated with mount pad 61, and the other end and the articulated connecting rod 7 of work piece fixed part 3, and the mount pad 61 of this embodiment is two of interval arrangement, and connecting rod 7 also does two of arranging for two installations for corresponding to two to make the removal and the upset of work piece fixed part 3 can be more steady.

The second rotary power output unit of this embodiment includes a second motor fixedly disposed on the bracket 21, and two second lead screws 62 driven by a motor shaft of the second motor to be rotatable, and the two mounting seats 61 are respectively and correspondingly screwed with the second lead screws 62, so that the rotation of the second motor drives the second lead screws 62 to rotate and drives the mounting seats 61 to move horizontally; the structure in which the second motor drives the two second lead screws 62 to rotate is shown in fig. 8 and 9, a duplex sprocket, which will be referred to as a driving duplex sprocket 63 hereinafter, is connected to the second motor in a transmission manner, one of the second lead screws 62 is driven by one of the sprocket in the driving duplex sprocket 63 through a chain, the other sprocket in the driving duplex sprocket 63 drives the other driven duplex sprocket 64 to rotate, and one of the sprocket in the driven duplex sprocket 64 drives the other second lead screw 62 to rotate through a chain, so that the two second lead screws 62 are driven by the single second motor to rotate.

In the present embodiment, the workpiece fixing portion 3 is further provided with a clamp portion for fixing the workpiece to the workpiece fixing portion. Referring to fig. 1 and 10, a plurality of elongated holes are formed in the workpiece fixing portion 3, the clamping portion specifically includes a clamping rod 8, the clamping rod 8 includes an insertion section 81 that can be inserted into the elongated holes, and a clamping section 82 that is fixedly connected to the insertion section and orthogonal to the insertion section, and the clamping portion further includes a nut 83 screwed to the insertion section so that the clamping section 82 can fix the workpiece to the workpiece fixing portion 3.

The use process of the lifting device of the embodiment is as follows: first, after the lifting device is moved and fixed to a target position, the position of the first mounting platform 5 is adjusted in the lateral direction of the lifting unit 1 by adjusting the lifting height of the lifting unit 1, the position of the table 2 is adjusted in the longitudinal direction of the lifting unit 1, the workpiece fixing portion 3 is adjusted to a working state, and finally, the workpiece on the workpiece fixing portion 3 is moved to a position suitable for mounting, and then, the mounting of the workpiece is completed by an installer.

In summary, in the lifting device of the present embodiment, the bracket 21 is disposed on the table 2 which is driven by the lifting unit 1 to be lifted and lowered, and the workpiece fixing portion 3 is disposed on the bracket 21, so that the workpiece is driven by the workpiece fixing portion 3 to be switched between the transportation state in which the workpiece is parallel to the table 2 and the working state in which the workpiece is erected with respect to the table 2, that is, the workpiece fixing portion 3 replaces an installer to lift the workpiece, thereby reducing the number of installers and the labor intensity of the installer.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a lifting device, includes the lift unit, locates workstation on the lift unit, the workstation by the lift unit drives and can rise, descend, its characterized in that: the workpiece fixing part is driven by the driving device to be switched between a transportation state which is parallel to the workbench and a working state which is vertical relative to the workbench.

2. The lifting device according to claim 1, characterized in that: the lifting unit is provided with a first mounting platform, the first mounting platform is provided with a first driving unit, and the first driving unit is in driving connection with the workbench and used for driving the workbench to move along the longitudinal direction of the lifting unit.

3. The lifting device according to claim 2, characterized in that: the lifting unit is fixedly provided with a second mounting platform, the first mounting platform is mounted on the second mounting platform, a second driving unit is arranged on the second mounting platform and is in driving connection with the first mounting platform and used for driving the first mounting platform to move transversely along the lifting unit.

4. The lifting device according to claim 3, characterized in that: the second driving unit comprises a first rotary power output unit fixedly arranged on the second mounting platform, a power output end which is rotatably arranged on the second mounting platform and is in transmission connection with the first rotary power output unit so as to accept a first lead screw which is driven by the first rotary power output unit and rotates, and a nut which is fixedly arranged on the first mounting platform and is in threaded connection with the first lead screw, wherein the first lead screw is axially parallel to the lifting unit in the transverse direction.

5. The lifting device according to claim 3, characterized in that: the second mounting platform comprises two guide wheel units which are rotatably arranged on the lifting unit and are respectively arranged on two sides of the lifting unit, and each guide wheel unit comprises two guide wheels which are arranged along the transverse direction of the lifting unit at intervals.

6. The lifting device according to claim 5, wherein: the first mounting platform comprises two cross beams which are arranged in parallel and at intervals, and a plurality of longitudinal beams which are fixedly connected between the two cross beams; and sliding grooves are formed in the side surface of each cross beam, which is opposite to the other cross beam, and the two sliding grooves are used for respectively clamping each guide wheel unit.

7. The lifting device according to any one of claims 1 to 6, characterized in that: the workpiece fixing part is arranged to be driven by the driving device to be capable of standing relative to the workbench after translating a distance relative to the workbench.

8. The lifting device as claimed in claim 7, wherein: the fixed shaft is fixedly arranged on the support, a guide groove into which the fixed shaft can be inserted is formed in the workpiece fixing part, the guide groove extends from one end of the workpiece fixing part to the middle of the workpiece fixing part, the fixed shaft can slide in the guide groove to enable the workpiece fixing part to translate relative to the support, and after the fixed shaft moves to the tail end of the guide groove, the workpiece fixing part can stand relative to the workbench.

9. The lifting device as claimed in claim 8, characterized in that: the driving device comprises a second rotary power output unit fixedly arranged on the bracket and a mounting seat driven by the second rotary power output unit to move along a straight line; the transmission unit comprises a connecting rod, one end of the connecting rod is hinged to the mounting seat, and the other end of the connecting rod is hinged to the workpiece fixing part.

10. The lifting device as claimed in claim 9, characterized in that: the driving device further comprises a second lead screw which is rotatably arranged on the support and can be driven by the second rotary power output unit to rotate, and the mounting seat is spirally connected to the second lead screw.