Lifting type supporting device

Abstract

The utility model provides a lifting type supporting device. The lifting type supporting device comprises a base, a workpiece supporting mechanism and a lifting mechanism. The workpiece supporting mechanism comprises a main body, and the main body is provided with a plurality of pre-positioning supporting pieces used for pre-positioning and supporting a plurality of workpieces to be installed and a plurality of auxiliary supporting pieces used for supporting the workpieces to be installed. The lifting mechanism comprises a fixed column, a sliding column and a driver. And the fixed column is supported on the base. And the workpiece supporting mechanism is supported on the sliding column. The sliding column is configured to move up and down relative to the fixed column. And the driver is configured to drive the sliding column so as to lift the workpiece supporting mechanism from a placing position for placing and pre-positioning the plurality of workpieces to be mounted to a mounting position for mounting the plurality of workpieces to be mounted. The lifting type supporting device lifts a plurality of workpieces to be installed in place at the same time, the man-machine engineering is good, and the working efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of automobile assembly, and particularly to a lifting support device. Background Art

[0002] During the automobile assembly process, it is necessary to install a plurality of workpieces to be installed (such as the front axle bottom guard and the left and right side anti-collision brackets, etc.) onto the vehicle body from below the hoisted vehicle body. The weight of the front axle bottom guard (about 5 kg) and the left and right side anti-collision brackets (about 5 kg each) can be up to more than 15 kg. During installation, usually two lifting personnel are required to lift the front axle bottom guard and the left and right side anti-collision brackets, and then another installation operator assembles the workpieces onto the vehicle body from below at the left installation station and the right installation station respectively. The two lifting personnel are prone to fatigue when lifting the workpieces for a long time, which will not only damage their physical health, but also affect the pre-positioning accuracy of the workpieces, resulting in poor ergonomics. Moreover, three people are required to install the workpieces at two installation stations, which also causes waste of manpower and low work efficiency. In addition, the installation tools (such as tightening tools and bolts) and materials required for installing the workpieces are usually stored beside the production line, and the time is wasted when the installation personnel go back and forth to pick up the installation tools and materials each time. Summary of the Utility Model

[0003] In order to solve the above technical problems, the present utility model provides a lifting support device, which is convenient for simultaneously lifting a plurality of workpieces to be installed that have been pre-positioned to the installation position, thereby not only having good ergonomics but also improving work efficiency.

[0004] In one aspect, the present disclosure provides a lifting support device. The lifting support device includes a base, a workpiece support mechanism, and a lifting mechanism. The workpiece support mechanism includes a main body, and the main body is provided with a plurality of pre-positioning support members for pre-positioning and supporting a plurality of workpieces to be installed and a plurality of auxiliary support members for supporting the plurality of workpieces to be installed. The lifting mechanism includes a fixed column, a sliding column, and a driver. The fixed column is supported on the base. The workpiece support mechanism is supported on the sliding column. The sliding column is configured to be able to move up and down relative to the fixed column. The driver is configured to drive the sliding column to lift the workpiece support mechanism from a resting position for placing and pre-positioning the plurality of workpieces to be installed to an installation position for installing the plurality of workpieces to be installed.

[0005] In this way, the lifting support device lifts a plurality of workpieces to be installed in place at the same time, no longer requires lifting personnel to lift the workpieces laboriously, and can ensure the precise pre-positioning and assembly of the workpieces, thereby not only having good ergonomics but also improving work efficiency.

[0006] In one or more embodiments, the plurality of workpieces to be installed includes a first central workpiece for a vehicle and a second left workpiece and a third right workpiece located on both sides of the first central workpiece. In this way, the lifting support device simultaneously lifts the three workpieces to be installed into place, improving work efficiency.

[0007] In one or more embodiments, the main body has a longitudinal rod defining a longitudinal centerline, and the main body further includes a front crossbar and a rear crossbar connected by the longitudinal rod, two front wing rods disposed on both sides of the longitudinal centerline on the front crossbar, and two rear wing rods disposed on both sides of the longitudinal centerline on the rear crossbar. This avoids instability caused by the eccentric arrangement of the workpiece support mechanism and the workpieces it carries.

[0008] In one or more embodiments, the plurality of pre-positioning supports includes a first left pre-positioning support and a first right pre-positioning support symmetrically disposed on a middle portion of the rear crossbar with respect to the longitudinal centerline. The first left pre-positioning support is configured to provide pre-positioning support points for both the first central workpiece and the second left workpiece, and the first right pre-positioning support is configured to provide pre-positioning support points for both the first central workpiece and the third right workpiece. The plurality of pre-positioning supports further includes a second left pre-positioning support and a second right pre-positioning support symmetrically disposed on two rear wing rods with respect to the longitudinal centerline. The second left pre-positioning support is configured to provide another pre-positioning support point for the second left workpiece. The second right pre-positioning support is configured to provide another pre-positioning support point for the second right workpiece. In this way, the three workpieces to be installed obtain a pre-positioned combination with respect to each other by means of the plurality of pre-positioning supports. This pre-positioned combination can be transferred and lifted to the installation position in one go by the lifting support device and directly installed in place from under the vehicle body, without the need for the lifting personnel to laboriously lift, position, and install it three times.

[0009] In one or more embodiments, the plurality of auxiliary supports includes a left front auxiliary support and a right front auxiliary support symmetrically disposed on two front wing rods with respect to the longitudinal centerline for supporting the first central workpiece. The plurality of auxiliary supports further includes a left rear auxiliary support and a right rear auxiliary support symmetrically disposed on the rear crossbar for respectively supporting the second left workpiece and the third right workpiece. In this way, the plurality of auxiliary supports are combined with the plurality of pre-positioning supports to provide at least three-point stable support for the three workpieces to be installed.

[0010] In one or more embodiments, the two front side wing bars extend backward from two ends of the front cross bar parallel to the longitudinal center line, and the two rear side wing bars extend forward from two ends of the rear cross bar parallel to the longitudinal center line. In this way, the workpiece support mechanism provides a symmetric structure to avoid instability caused by the eccentric arrangement of the workpiece support mechanism and the workpiece carried thereon.

[0011] In one or more embodiments, the workpiece support mechanism is configured to be locked in place at the resting position by a locking mechanism. In this way, double locking is adopted to prevent accidental touch from triggering the lifting operation, that is, to ensure that the workpiece support mechanism is stably in the resting position.

[0012] In one or more embodiments, the locking mechanism is a first locking mechanism. The first locking mechanism includes a control component, which is attached to the left side surface of the sliding column through a fulcrum component at the middle and lower part. The control component is provided with a hand-held part at the upper end and a spring pin at the lower end. The first locking mechanism further includes a wedge-shaped limiting part with a lower limiting surface fixed on the rear side surface of the fixed column. The first locking mechanism is configured to unlock by pushing the hand-held part inward, so that the control component rotates clockwise by means of the fulcrum component to pull out the spring pin outward to disengage from the lower limiting surface. The first locking mechanism is also configured to lock by pulling down the workpiece support mechanism until the spring pin moves downward to abut against the lower limiting surface. The first locking mechanism is manually unlocked by the operator to prevent accidental touch from triggering the lifting operation.

[0013] In one or more embodiments, the locking mechanism includes a second locking mechanism. The second locking mechanism includes an L-shaped pivoting component, which is attached to the longitudinal rod of the main body through a pivot shaft at the corner. The L-shaped pivoting component is provided with a triggering part at the first end and a locking part at the second end. The second locking mechanism further includes a locking part arranged on the right side surface of the fixed column and an elastic pressing part arranged on the top of the fixed column. The second locking mechanism is configured to unlock by pressing the triggering part with the weight of the first central workpiece placed on the workpiece support mechanism, so that the L-shaped pivoting component pivots counterclockwise around the pivot shaft to disengage the locking part from the locking part. The second locking mechanism is also configured to lock by making the L-shaped pivoting component pivot clockwise around the pivot shaft by the elastic pressing part to engage the locking part with the locking part. In this way, the second locking mechanism ensures that the workpiece support mechanism is stably in the resting position before loading, and automatically unlocks when loading the first central workpiece.

[0014] In one or more embodiments, the driver includes a pulley, a belt, and a counterweight. The pulley is attached within the forked upper end portion of the fixed column. The belt is arranged to bypass the pulley, with the first end of the belt attached to the right side surface of the sliding column and the second end of the belt attached to the counterweight. In this way, the driver achieves power-free driving, making the operation simple and convenient.

[0015] In one or more embodiments, the counterweight is provided with at least one preset hole for hanging at least one supplementary counterweight. In this way, it is convenient to configure the required counterweight according to the weight of the multiple workpieces to be installed carried by the workpiece support mechanism and the desired lifting height.

[0016] In one or more embodiments, the lifting support device includes at least one tool storage mechanism disposed above the base for storing installation tools and / or at least one material storage mechanism for storing materials. The lifting support device includes a plurality of wheels disposed below the base. The lifting support device further includes a plurality of wheel guards attached to the side surfaces at the corners of the base to respectively surround the plurality of wheels, and the wheel guards extend downward from the base to at least partially contact the ground. The plurality of pre-positioning supports and / or the plurality of auxiliary supports are detachably or adjustably attached to the main body of the workpiece support mechanism.

[0017] In this way, the provision of the tool storage mechanism and / or the material storage mechanism saves the time required for the installer to go back and forth to retrieve installation tools and materials, which is beneficial to improving work efficiency. The provision of the plurality of wheels allows the lifting support device to move to follow the spreader forward, solving the problem of inconvenient man-machine following operation. The wheel guards can prevent the wheels from touching obstacles that may exist on the ground and causing the lifting support device to tip over. The detachable or adjustable attachment facilitates replacing the corresponding pre-positioning supports and supports or providing more optional pre-positioning positions and support positions to match the specific requirements of the workpiece to be installed. Description of the Drawings

[0018] Through the following specific embodiments in conjunction with the drawings, the present disclosure will be more easily understood, where the same reference numerals represent the same elements. The drawings are schematic and not restrictive. The elements in the drawings are not necessarily shown to scale. For example, an element may be enlarged for illustrative purposes or may be scaled down to keep the drawings clear and easy to understand. In the drawings:

[0019] Figure 1 A perspective view of the lifting support device according to the present disclosure is schematically shown from one angle, showing the workpiece support mechanism in the resting position and not loaded with multiple workpieces to be installed.

[0020] Figure 2Schematically shown is a perspective view of the lifting support device according to the present disclosure, observed from another angle, showing the workpiece support mechanism in the resting position with a plurality of workpieces to be installed loaded thereon.

[0021] Figure 3 Schematically shown is a perspective view of the lifting support device according to the present disclosure, observed from yet another angle, showing the workpiece support mechanism in the installed position.

[0022] Figure 4 Shown is a perspective view schematically showing a part of the lifting support device according to the present disclosure, showing the first locking mechanism in the locked state.

[0023] Figure 5 Schematically shown is a perspective view of a part of the lifting support device according to the present disclosure, showing the second locking mechanism in the locked state when the workpiece support mechanism is in the resting position and not loaded with a plurality of workpieces to be installed.

[0024] Figure 6 Shown is a perspective view schematically showing a part of the lifting support device according to the present disclosure, showing the second locking mechanism in the unlocked state when the workpiece support mechanism is in the resting position and loaded with a plurality of workpieces to be installed.

[0025] Figure 7 Shown is a perspective view schematically showing a part of the lifting support device according to the present disclosure, showing the state where the workpiece support mechanism returns to the resting position to re-lock the second locking mechanism. Detailed Description

[0026] The present disclosure will hereinafter be described with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below. The embodiments described below are intended to make the disclosure of the present disclosure more complete and to fully explain the scope of protection of the present disclosure to those skilled in the art. It should be understood that in all the drawings, the same reference numerals represent the same elements.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present disclosure belongs. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail. The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The terms "comprising" and "having" and any derivatives thereof in the specification and claims of the present disclosure are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of the present disclosure, terms such as "first", "second", etc. are only used to distinguish different objects, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, the meaning of "a plurality of" is more than two, unless otherwise clearly defined.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present disclosure. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] In the description of the embodiments of the present disclosure, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0031] In the description of the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "inside", "outside", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present disclosure and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present disclosure.

[0032] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, terms such as "mounted", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0033] Based on the state of the prior art, the basic concept of the lifting support device provided by the present disclosure is as follows: The lifting support device is provided at the top with a workpiece support mechanism for pre-positioning and supporting a plurality of workpieces to be installed relative to each other, so as to ensure that each workpiece is accurately pre-positioned to form an assembly. The workpiece support mechanism can lift the assembly to the installation position for installation simultaneously by means of a lifting mechanism, so that it is no longer necessary for the lifting personnel to lift and position each workpiece laboriously, which has good ergonomics and improves work efficiency.

[0034] The structure and function of the lifting support device according to the present disclosure will be described below with reference to the accompanying drawings.

[0035] Figure 1 Fig. 4 shows a perspective view of the lifting support device according to the present disclosure as viewed from one angle, showing the workpiece support mechanism in the rest position and not loaded with a plurality of workpieces to be installed. In this article, the lifting support device that simultaneously lifts and assembles three workpieces to be installed, namely, the front axle under shield, the left anti-collision bracket, and the right anti-collision bracket for a vehicle, will be taken as an example for illustration. As is known to those skilled in the art, the lifting support device according to the present disclosure can be used to lift other multiple pre-installed workpieces by appropriately changing the layout of the pre-positioning support points and / or the auxiliary support points.

[0036] As Figure 1 shown, the lifting support device 1 according to the present disclosure may include a base 60, a workpiece support mechanism 10, and a lifting mechanism. The workpiece support mechanism 10 includes a main body and a plurality of pre-positioning support members provided on the main body for supporting and pre-positioning a plurality of workpieces to be installed, and a plurality of auxiliary support members for supporting the plurality of workpieces to be installed. Here, the term "pre-positioning support member" refers to a component that provides both pre-positioning function and support function. The term "auxiliary support member" refers to a component that provides only support function. The lifting mechanism includes a driver 20, a fixed column FP supported on the base 60, and a sliding column SP for supporting the workpiece support mechanism 10. Specifically, the fixed column FP extends vertically upward from the center of the base 60. The sliding column SP extends vertically downward from the symmetric center of the workpiece support mechanism 10. The sliding column SP is configured to be able to move up and down relative to the fixed column FP. The driver 20 is configured to be attached to the sliding column SP for driving. The driver 20 is configured to drive the sliding column SP to drive the workpiece support mechanism 10 from the rest position (see Figure 2 ) for placing and pre-positioning a plurality of workpieces to be installed to the installation position (see Figure 3 ) for installing a plurality of workpieces to be installed.

[0037] As Figure 2 shown, the workpiece support mechanism 10 is configured to receive and support a plurality of workpieces to be installed, that is, a first central workpiece for a vehicle and a second left workpiece and a third right workpiece located on both sides of the first central workpiece. In the illustrated embodiment, the plurality of workpieces to be installed include a first central workpiece (e.g., the front axle under shield) P1, a second left workpiece (e.g., the left anti-collision bracket) P2, and a third right workpiece (e.g., the right anti-collision bracket) P3. Thus, the lifting support device of the present disclosure can lift a plurality of pre-positioned workpieces to the place at one time, improving work efficiency, and also solving the ergonomic problems caused by the need for multiple lifting personnel for lifting and positioning and the overweight of parts before.

[0038] The main body of the workpiece support mechanism 10 has a longitudinal rod 11 that defines a longitudinal centerline CL. The workpiece support mechanism 10 is configured to be symmetrically arranged (left - right symmetric) about the longitudinal centerline CL to avoid instability caused by the eccentric arrangement of the workpiece support mechanism and the workpiece it carries. As described herein, the directional terms "front", "rear", "left", and "right" are defined with reference to the longitudinal centerline CL and the direction in which the operator pushes the lifting support device forward.

[0039] In Figure 1 In the illustrated embodiment, the main body of the workpiece support mechanism 10 may further include a front cross - bar 12 and a rear cross - bar 13 connected by the longitudinal rod 11, two front side - wing rods 12L, 12R disposed on both sides of the longitudinal centerline on the front cross - bar 12, and two rear side - wing rods 13L, 13R disposed on both sides of the longitudinal centerline on the rear cross - bar 13. Specifically, the two front side - wing rods 12L, 12R extend rearward from the two ends of the front cross - bar 12 parallel to the longitudinal centerline CL. The two rear side - wing rods 13L, 13R extend forward from the two ends of the rear cross - bar 13 parallel to the longitudinal centerline CL. The main body of the workpiece support mechanism 10 may further include more rods as needed to provide more support points for the workpiece.

[0040] The workpiece support mechanism 10 may further include a gripping rod 18 disposed below and behind the rear cross - bar 15 to facilitate the operator pulling the workpiece support mechanism back from the installation position to the resting position by pulling down the gripping rod 18. The gripping rod 18 may have a cylindrical outer surface. Optionally, the outer surface of the gripping rod 18 may have a friction - enhancing portion to facilitate better gripping by the operator.

[0041] In Figure 1In the illustrated embodiment, the plurality of pre-positioning supports may include a first left pre-positioning support 14A and a first right pre-positioning support 14B symmetrically disposed about the longitudinal centerline CL on a middle portion of the rear crossbar 13. The first left pre-positioning support 14A is configured to provide a pre-positioning support point for both the first central workpiece P1 and the second left workpiece P2 (i.e., they share the same pre-positioning support point). The first right pre-positioning support 14B is configured to provide a pre-positioning support point for both the first central workpiece P1 and the third right workpiece P3 (i.e., they share the same pre-positioning support point). The first left pre-positioning support 14A and the first right pre-positioning support 14B are in the form of pins, which include a relatively large-diameter lower cylinder for the first central workpiece P1 and a relatively small-diameter upper cylinder for the second left workpiece P2 or the third right workpiece P3. The plurality of pre-positioning supports may also include a second left pre-positioning support 15A and a second right pre-positioning support 15B symmetrically disposed on the rear side wing bars respectively about the longitudinal centerline CL. The second left pre-positioning support 15A is configured to provide another pre-positioning support point for the second left workpiece P2. The second right pre-positioning support 15B is configured to provide another pre-positioning support point for the third right workpiece P3. The second left pre-positioning support 15A and the second right pre-positioning support 15B are in the form of pins having a single diameter cylinder.

[0042] In Figure 1 In the illustrated embodiment, the plurality of auxiliary supports may include a left front auxiliary support 16A and a right front auxiliary support 16B symmetrically disposed about the longitudinal centerline CL on two front side wing bars 12L, 12R for supporting the first central workpiece P1. The left front auxiliary support 16A and the right front auxiliary support 16B include abutting blocks that project upward to abut the workpiece from below. The plurality of auxiliary supports may also include a left rear auxiliary support 17A and a right rear auxiliary support 17B symmetrically disposed on the rear crossbar 13 for supporting the second left workpiece P2 and the third right workpiece P3 respectively. Similar to the second left pre-positioning support 15A and the second right pre-positioning support 15B, the left rear auxiliary support 17A and the right rear auxiliary support 17B are also in the form of pins having a single diameter cylinder.

[0043] In other words, the first central workpiece P1 provides two-point pre-positioning through the first left pre-positioning support 14A and the first right pre-positioning support 14B to ensure accurate positioning. The first central workpiece P1 can be supported by the first left pre-positioning support 14A, the first right pre-positioning support 14B, the left front auxiliary support 16A, and the right front auxiliary support 16B to obtain four-point stable support. The second left workpiece P2 provides two-point pre-positioning through the first left pre-positioning support 14A and the second left pre-positioning support 15A to ensure accurate positioning. The second left workpiece P2 can be supported by the first left pre-positioning support 14A, the second left pre-positioning support 15A, and the left rear auxiliary support 17A to obtain three-point stable support. The third right workpiece P3 provides two-point pre-positioning through the first right pre-positioning support 14B and the second right pre-positioning support 15B to ensure accurate positioning. The third right workpiece P3 can be supported by the first right pre-positioning support 14B, the second right pre-positioning support 15B, and the right rear auxiliary support 17B to obtain three-point stable support. In this way, the first central workpiece P1, the second left workpiece P2, and the third right workpiece P3 are not only stably supported by a plurality of pre-positioning supports and a plurality of auxiliary supports, but also form a pre-positioned combination among the three before assembly. This pre-positioned combination can be transferred and lifted to the installation position at one time by the lifting support device and directly installed in place from under the vehicle body (see Figure 3 ), improving work efficiency and eliminating the need for lifting personnel to laboriously lift, position, and install in three separate operations (lifting one workpiece at a time).

[0044] The plurality of pre-positioning supports and the plurality of auxiliary supports are detachably mounted on the main body of the workpiece support mechanism 10 so as to be adapted to replace the corresponding pre-positioning supports and auxiliary supports according to the specific requirements of the workpiece to be installed. The main body may be provided with oval mounting holes or more mounting holes to facilitate providing more optional pre-positioning positions and auxiliary support positions according to the specific structure of the plurality of workpieces to be installed.

[0045] Referring to Figure 1 , the sliding column SP is fixed to the center of the longitudinal rod 11 and extends vertically downward. The sliding column SP is provided with two sliders at a position near the lower end on the right side. The sliding column SP and the workpiece support mechanism 10 connected thereto can move up and down relative to the fixed column FP by sliding of the two sliders (not labeled with reference numerals) in the track provided on the left side surface of the fixed column FP.

[0046] The workpiece support mechanism 10 is locked in place at the resting position for placing and pre-positioning a plurality of workpieces to be installed. Referring to Figures 5 - 7, the locking mechanism may include a first locking mechanism 40 and a second locking mechanism 30 to prevent accidental triggering of the lifting operation through double locking, that is, to ensure that the workpiece support mechanism 10 is stably in the resting position.

[0047] Figure 4 A perspective view schematically showing a part of the lifting support device according to the present disclosure is shown, showing the first locking mechanism in a locked state.

[0048] Reference Figure 4 , the first locking mechanism 40 includes a control member 41. On the left side surface of the sliding column SP, the control member 41 is attached to the sliding column SP at the middle and lower part by means of a fulcrum member 47. Specifically, a connecting plate 46 is fixed to the rear surface of the sliding column SP. One end of the fulcrum member 47 is attached to the control member 41 and the other end is attached to the connecting plate 46 to provide a rotation fulcrum for the control member 41. The control member 41 is provided with a hand-held portion 42 at the upper end. The hand-held portion 42 extends vertically outward from the upper end portion. The free end of the hand-held portion 42 is spherical to facilitate the operator's grip. The control member 41 is provided with a spring pin 44 at the lower end. Specifically, the spring pin 44 is attached to the lower end of the control member 41 by means of a connecting member 43. The first locking mechanism 40 further includes a wedge-shaped limiting member 45 provided on the rear side surface of the fixed column FP. The wedge-shaped limiting member 45 may include a lower limiting surface 451 on the bottom surface. The wedge-shaped limiting member 45 may further include an inclined surface 453 facing the sliding column SP and a vertical surface 452 connecting the lower limiting surface 451 and the inclined surface 453. The spring pin 44 has a head and a cylinder 441. The spring pin 44 is configured such that its head is located on the left side of the connecting member 43, and its cylinder 441 extends through the through hole of the connecting member 43 and the connecting hole of the connecting plate 46 and extends beyond the right side surface of the sliding column SP to abut against the lower limiting surface 451 to achieve locking in place. In addition, the setting of the fulcrum member 47 can also limit the rotation range of the control member 41 to allow the spring pin 44 to be pulled outwards but not completely withdrawn from the connecting hole of the connecting plate 46.

[0049] During operation, the operator moves the lifting support device 1 together with a plurality of pre-positioned support members to an installation location under the vehicle body 2 (see Figure 3), and then, the operator uses a hand (usually the left hand) to push the handheld part 42 inward (identified by D3), so that the control component 41 pivots clockwise (identified by R2) by means of the pivot part 47 serving as a rotation fulcrum, driving the spring pin 44 to be pulled out leftward (identified by D4), so as to disengage the spring pin 44 from the lower limit surface 451 to unlock. In short, the first locking mechanism 40 is configured to pull out the spring pin 44 outward by the operator manually pushing the handheld part 42 inward to disengage from the lower limit surface 451 to unlock. Thus, the first locking mechanism 40 is manually unlocked by the operator. When the sliding column SP rises and drives the spring pin 44 to a distance above the vertical surface 452 of the wedge-shaped limiting part 45, the handheld part 42 is released to make the control component 41 return to the neutral position, and the workpiece support mechanism 10 will automatically rise under the drive of the driver 20 until it abuts against the vehicle body and stops at its installation position. In the installation position, the three pre-positioned support parts that have been pre-positioned abut against the vehicle body from below and are in their assembled positions. Then, at least one operator respectively obtains the tightening tool and the screw from the tool storage mechanism 51 and the material storage mechanism 52 to install the three pre-positioned support parts that have been pre-positioned in place.

[0050] After the installation operation is completed, the operator pulls down the workpiece support mechanism 10, the sliding column SP moves downward, and the spring pin 44 starts to be compressed when it abuts against the inclined surface 453 of the wedge-shaped limiting part until the spring pin 44 gradually moves downward and passes through the vertical surface 452 and reaches the lower limit surface 451 before automatically elastically stretching and abutting against the lower limit surface 451 of the wedge-shaped limiting part, thereby realizing re-locking. In short, the first locking mechanism 40 is configured to lock by pulling down the workpiece support mechanism to make the spring pin 44 abut against the lower limit surface 451 of the wedge-shaped limiting part 45. The setting of the inclined surface 453 is suitable for gradually compressing or stretching the spring pin 44. The setting of the vertical surface 452 facilitates the spring pin 44 to maintain a constant compression for a period of time.

[0051] Figure 5 It shows that the second locking mechanism 30 is in the locked state when the workpiece support mechanism 10 is in the resting position and no multiple workpieces to be installed are loaded. Figure 6 It shows that the second locking mechanism 30 is in the unlocked state when the workpiece support mechanism 10 is in the resting position and multiple workpieces to be installed have been loaded. Figure 7 It shows that when the workpiece support mechanism 10 returns to the resting position, the second locking mechanism 30 is re-locked.

[0052] The second locking mechanism 30 includes an L-shaped pivoting member formed by a first arm and a second arm perpendicular to each other. The L-shaped pivoting member is attached to the longitudinal rod 11 at the corner portion 31 by a pivot shaft A1. The L-shaped pivoting member is provided with a triggering portion 32 at the first end (i.e., the end of the first arm opposite to the corner portion) and a locking portion 33 at the second end (i.e., the end of the second arm opposite to the corner portion). For example, the locking portion 33 may be in the form of a locking hook. Alternatively, the locking portion 33 may also have other configurations that can achieve the locking function. For example, the triggering portion 32 may be in the form of a cylindrical rod with a rounded top. The triggering portion 32 extends outward perpendicular to the first arm. The locking portion 33 extends inward perpendicular to the second arm. The second locking mechanism 30 further includes a locking portion 34 (e.g., a recess) provided on the right side surface of the fixed column FP for engaging with the locking portion 33 to achieve locking. The second locking mechanism 30 further includes an elastic pressing portion 35 provided on the top of the fixed column FP (see Figure 7 ). The elastic pressing portion 35 is in the form of a spring pin. In a state where the workpiece support mechanism 10 is not loaded with the workpiece to be installed in the resting position, the free end of the triggering portion 32 is higher than the longitudinal rod 11. After the operator places the first central workpiece P1 on the workpiece support mechanism 10, the triggering portion 32 is triggered by the downward force applied due to the weight of the first central workpiece P1, causing the L-shaped pivoting member to pivot counterclockwise (identified by R1) about the pivot shaft A1 to disengage the locking portion 33 from the locking portion 34 for unlocking. The elastic pressing portion 35 can be configured to push the first arm upward to cause the L-shaped pivoting member to pivot clockwise (opposite to the direction shown by R1) about the pivot shaft A1, thereby driving the locking portion 33 to engage with the locking portion 34 to achieve locking.

[0053] During operation, the operator pre-positions and supports the first central workpiece P1 on the workpiece support mechanism 10, and the gravity of the first central workpiece P1 (optionally, the operator can actively apply a downward pressure) presses downward (as identified by D1) on the triggering portion 32, causing the L-shaped pivoting member to pivot counterclockwise about the pivot shaft A1 and move the locking portion 33 in the horizontal rightward direction D2 to disengage from the locking portion 34 to unlock the second locking mechanism 30 (see Figure 5 ). In short, the second locking mechanism 30 can be automatically unlocked when the first central workpiece P1 is loaded. When the operator pulls down the workpiece support mechanism 10 from the installation position, the resilience generated by the downward pressing of the first arm on the elastic pressing portion 35 causes the L-shaped pivoting member to pivot clockwise about the pivot shaft A1 to engage the locking portion 33 with the locking portion 34 for locking (see Figure 7 ).

[0054] The driver 20 can be a passive driver or an active driver (such as an electric driver or a hydraulic driver). Refer to Figure 7, the driver 20 is a passive driver to achieve power-free driving, making the operation simple and convenient. The driver 20 includes a pulley 21, a belt 22, and a counterweight 23. The pulley 21 is attached inside the forked upper end of the fixed column. The pulley 21 is rotatably mounted to the fixed column FP by means of a pair of connecting members respectively arranged on the front side and the rear side of the fixed column FP. The elastic pressing portion 35 of the second locking mechanism 30 can be provided on the upper surface of the connecting member located on the rear side of the fixed column. The belt 22 bypasses the pulley 21, and the first end of the belt is attached to the right side surface of the sliding column SP while the second end of the belt is attached to the counterweight 23. In this way, the counterweight 23 hangs near the right side surface of the fixed column FP. Specifically, the first end of the belt is attached above two sliders so as not to interfere with the up and down sliding of the sliding column SP relative to the fixed column FP. In this way, under the gravity of the counterweight 23, the downward force is converted into an upward force of the sliding column SP through the belt 21 and the pulley 22 to achieve the function of lifting the workpiece support mechanism 10.

[0055] Referring to Figure 1 , the counterweight 23 can be provided with at least one preset hole 231 (four preset holes are shown in the figure, but it is not limited thereto) for hanging at least one supplementary counterweight. In this way, it is convenient to configure the required number of counterweights 23 according to the weight of the multiple workpieces to be installed carried by the workpiece support mechanism and the desired lifting height.

[0056] Reference Figure 1 , the lifting support device 1 can include at least one tool storage mechanism 51 provided above the base 60 for storing installation tools and / or at least one material storage mechanism 52 for storing materials, thereby saving the time required for installers to go back and forth to pick up installation tools and materials, which is beneficial to improving work efficiency. The tool storage mechanism 51 and the material storage mechanism 52 can be arranged symmetrically about the fixed column FP both front and back and left and right. At the rear part of the base 60 of the lifting support device 1, the tool storage mechanism 51 and the material storage mechanism 52 can be supported by columns vertically extending from the base and struts symmetrically arranged about the columns on the left and right. The material storage mechanism 52 can be a left tray and a right tray located above the column and symmetrically arranged about the column. Reinforcing members can be provided between the left tray and the right tray and the column to enhance the strength of the material storage mechanism 52. The tool storage mechanism 51 is cylindrical and can be respectively provided on the left side surface of the left tray and the right side surface of the right tray for inserting tightening devices. In an embodiment not shown, the material storage mechanism 52 can also be a single tray located above the column and centered about the column. At the front part of the base 60 of the lifting support device 1, the tool storage mechanism 51 and the material storage mechanism 52 are similarly provided so that the lifting support device has a symmetrical structure, which is convenient for maintaining the overall balance.

[0057] The lifting support device 1 may include a plurality of wheels 70 disposed below the base 60 to allow the lifting support device 1 to move to follow the spreader forward, solving the problem of inconvenient man-machine accompanying operation. Refer to Figure 1 and Figure 2 , showing four wheels located at the four corners of the base. The wheels 70 may be swivel wheels that facilitate steering.

[0058] The lifting support device 1 may further include a plurality of wheel guards 80 attached to the side surfaces at the corners of the base 60 to surround the plurality of wheels 70. The wheel guards extend downward from the base 60 to at least partially contact the ground. In this way, it is possible to prevent the wheels from touching obstacles that may exist on the ground and causing the lifting support device to tip over. Refer to Figure 1 , the wheel guard 80 includes a main body portion 81 and a ground contact portion 82. The main body portion 81 is attached to the side surfaces at the four corners of the base 60. The ground contact portion 82 is a flexible member to allow the lifting support device to move smoothly without hindrance. For example, the ground contact portion 82 may be a member such as a brush.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A lifting support device, characterized in that, The lifting support device (1) includes: a base (60); a workpiece support mechanism (10), the workpiece support mechanism including a main body provided with a plurality of pre-positioning support members for pre-positioning and supporting a plurality of workpieces to be installed and a plurality of auxiliary support members for supporting the plurality of workpieces to be installed; a lifting mechanism including a fixed column (FP), a sliding column (SP), and a driver (20); the fixed column (FP) is supported on the base (60), the workpiece support mechanism (10) is supported on the sliding column (SP), and the sliding column (SP) is configured to be movable up and down relative to the fixed column (FP); wherein the driver (20) is configured to drive the sliding column (SP) to lift the workpiece support mechanism (10) from a resting position for placing and pre-positioning the plurality of workpieces to be installed to an installation position for installing the plurality of workpieces to be installed.

2. The lifting support device according to claim 1, characterized in that The plurality of workpieces to be installed includes a first central workpiece (P1) for a vehicle and a second left workpiece (P2) and a third right workpiece (P3) located on both sides of the first central workpiece.

3. The lifting support device according to claim 2, wherein, The main body has a longitudinal rod (11) defining a longitudinal center line (CL), and the main body further includes a front cross bar (12) and a rear cross bar (13) connected by the longitudinal rod, two front side wing bars (12L, 12R) provided on both sides of the longitudinal center line on the front cross bar (12), and two rear side wing bars (13L, 13R) provided on both sides of the longitudinal center line on the rear cross bar (13).

4. The lifting support device according to claim 3, wherein, The plurality of pre-positioning support members includes: a first left pre-positioning support member (14A) and a first right pre-positioning support member (14B) symmetrically provided on the middle part of the rear cross bar (13) with respect to the longitudinal center line (CL), the first left pre-positioning support member (14A) being configured to provide a pre-positioning support point for both the first central workpiece (P1) and the second left workpiece (P2), and the first right pre-positioning support member (14B) being configured to provide a pre-positioning support point for both the first central workpiece (P1) and the third right workpiece (P3); and a second left pre-positioning support member (15A) and a second right pre-positioning support member (15B) symmetrically provided on the two rear side wing bars (13L, 13R) with respect to the longitudinal center line (CL), the second left pre-positioning support member (15A) being configured to provide another pre-positioning support point for the second left workpiece (P2); the second right pre-positioning support member (15B) being configured to provide another pre-positioning support point for the third right workpiece (P3).

5. The lifting support device according to claim 4, characterized in that, Wherein, The plurality of auxiliary support members includes: a left front auxiliary support member (16A) and a right front auxiliary support member (16B) symmetrically provided on the two front side wing bars (12L, 12R) with respect to the longitudinal center line (CL) for supporting the first central workpiece (P1); and A left rear auxiliary support member (17A) and a right rear auxiliary support member (17B) symmetrically disposed on the rear crossbar (13) with respect to the longitudinal center line (CL) are configured to support the second left workpiece (P2) and the third right workpiece (P3), respectively.

6. The lifting support device according to claim 5, wherein Wherein, The two front side wing bars (12L, 12R) extend rearward from two ends of the front crossbar (12) parallel to the longitudinal center line (CL), and the two rear side wing bars (13L, 13R) extend forward from two ends of the rear crossbar (13) parallel to the longitudinal center line (CL).

7. The lifting support device according to any one of claims 3-6, characterized in that, The workpiece support mechanism (10) is configured to be locked in place at the rest position by a locking mechanism.

8. The lifting support device according to claim 7, characterized in that, The locking mechanism includes a first locking mechanism (40), the first locking mechanism includes a control member (41), the control member is attached to the left side surface of the sliding column (SP) by a fulcrum member (47) at the middle and lower part, the control member (41) is provided with a hand-held portion (42) at the upper end and a spring pin (44) at the lower end, and the first locking mechanism further includes a wedge-shaped limiting member (45) having a lower limiting surface (451) fixed on the rear side surface of the fixed column (FP); Wherein, the first locking mechanism (40) is configured to unlock by pushing the hand-held portion (42) inward to cause the control member (41) to rotate clockwise by means of the fulcrum member (47) to pull the spring pin (44) outwards to disengage from the lower limiting surface (451), and the first locking mechanism (40) is further configured to lock by pulling down the workpiece support mechanism (10) until the spring pin (44) moves downward to abut against the lower limiting surface (451).

9. The lifting support device according to claim 8, characterized in that, The locking mechanism includes a second locking mechanism (30), the second locking mechanism includes an L-shaped pivoting member, the L-shaped pivoting member is attached to the longitudinal rod (11) of the main body by a pivot shaft (A1) at the corner portion (31), the L-shaped pivoting member is provided with a triggering portion (32) at the first end and a locking portion (33) at the second end, and the second locking mechanism (30) further includes a locking portion (34) provided on the right side surface of the fixed column (FP) and an elastic pressing portion (35) provided on the top of the fixed column (FP), Wherein, the second locking mechanism (30) is configured to unlock by the weight of the first central workpiece (P1) placed on the workpiece support mechanism (10) pressing the triggering portion (32) to cause the L-shaped pivoting member to pivot counterclockwise about the pivot shaft (A1) to disengage the locking portion (33) from the locking portion (34), and the second locking mechanism (30) is further configured to lock by the elastic pressing portion (35) causing the L-shaped pivoting member to pivot clockwise about the pivot shaft (A1) to engage the locking portion (33) with the locking portion (34).

10. The lifting support device according to any one of claims 1-6, characterized in that, The driver (20) includes a pulley (21), a belt (22), and a counterweight (23). The pulley (21) is attached within the forked upper end portion of the fixed post (FP). The belt (22) is arranged to bypass the pulley (21), with the first end of the belt attached to the right side surface of the sliding post (SP) and the second end of the belt attached to the counterweight (23).

11. The lifting support device according to claim 10, characterized in that, The counterweight is provided with at least one preset hole (231) for hanging at least one supplementary counterweight.

12. The lifting support device according to any one of claims 1-6, characterized in that, The lifting support device (1) includes at least one tool storage mechanism (51) disposed above the base (60) for storing installation tools and / or at least one material storage mechanism (52) for storing materials; and / or The lifting support device includes a plurality of wheels (70) disposed below the base (60); and / or The lifting support device includes a plurality of wheel guards (80) attached to the side surfaces at the corners of the base (60) to respectively surround the plurality of wheels. The wheel guards extend downward from the base (60) to at least partially contact the ground; and / or The plurality of pre-positioning supports and / or the plurality of auxiliary supports are detachably or adjustably attached to the main body of the workpiece support mechanism (10).

Images