Simple lifting and supporting tool and method

Abstract

The invention relates to the technical field of automotive trim auxiliary equipment, and discloses a simple lifting and supporting tool and method.The simple lifting and supporting tool comprises a connecting rod, a fixed supporting frame and a lifting movable frame, the fixed supporting frame is provided with an upper fixed connecting rod and a lower fixed connecting rod which are parallel, and the lifting movable frame is provided with an upper movable connecting rod and a lower movable connecting rod which are parallel; the connecting rod comprises a main connecting rod and an auxiliary connecting rod; two ends of the auxiliary connecting rod are sleeved on the fixed connecting rod and the movable connecting rod which are positioned above; one end of the main connecting rod sleeves the lower movable connecting rod, the position close to the middle of the main connecting rod sleeves the lower fixed connecting rod, the other end of the main connecting rod is provided with a fixed connecting piece, the connecting rod, the fixed supporting frame and the lifting movable frame are combined to form a parallelogram mechanism, and the other end of the main connecting rod is pulled to achieve lifting of the lifting movable frame; the device solves the problem that the coach interior trim top-middle plate falls due to gravity in the curing stage after being bonded, the bonding quality of the top-middle plate is guaranteed, the structure is simple, operation is convenient and fast, and the assembly requirements of different coach interior trim top-middle plates are met.

Description

Technical Field

[0001] This invention relates to the field of automotive interior auxiliary equipment technology, and in particular to a simple lifting and support tooling and method. Background Technology

[0002] During the assembly of bus interiors, the top panel needs to be bonded and fixed to the vehicle body using adhesive. However, while the adhesive is waiting to cure, the top panel, due to its large size, is prone to sagging due to its own weight. This can lead to problems such as misalignment of the bonding position, weak bonding, and uneven surface, seriously affecting the assembly quality and production efficiency of the bus interiors. Therefore, it is necessary to use temporary support devices to support the top panel of the bus interior before the adhesive cures, and remove the temporary support devices after the adhesive has cured.

[0003] Currently, there is a lack of simple and effective support devices specifically designed for the curing stage of the interior roof panel of buses after bonding. Workers generally use simple wooden or aluminum alloy square tube temporary supports: a grid or A-frame is erected on the floor inside the bus, with felt pads supporting the middle panel on top. This method uses readily available materials, but the height is not adjustable. The height from the bus floor to the roof frame generally varies between 1.9 and 2.3 m, requiring on-site sawing of pads, which is time-consuming and generates dust. Furthermore, the limited space in the bus doors makes on-site sawing of pads inconvenient. In addition, it occupies a large space: the bottom projection area of ​​the grid frame is ≥0.8 m × 0.8 m, obstructing personnel passage in a passageway only 0.55 m wide, and making it impossible to set up multiple workstations simultaneously. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a simple lifting and support fixture and method that solves the problem of sagging due to gravity during the curing stage after bonding of the interior roof panel of a bus, ensuring the bonding quality of the roof panel. The structure is simple, the operation is convenient, and it is adaptable to the assembly needs of different bus interior roof panels.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: Firstly, a simple lifting and supporting fixture includes a connecting rod, a fixed support frame, and a lifting movable frame. The fixed support frame has two sets of parallel fixed connecting rods, and the lifting movable frame has two sets of parallel movable connecting rods. The connecting rod includes a main connecting rod and a secondary connecting rod. The two ends of the secondary connecting rod are sleeved on the upper fixed connecting rod and the movable connecting rod. One end of the main connecting rod is sleeved on the lower movable connecting rod, and near the middle, it is sleeved on the lower fixed connecting rod. The other end of the main connecting rod is provided with a fixed connector. The connecting rod, the fixed support frame, and the lifting movable frame are combined to form a parallelogram mechanism. Pulling the other end of the main connecting rod realizes the lifting and lowering of the lifting movable frame. The main connecting rod is locked to the fixed support frame through the fixed connector.

[0006] As a further implementation, the fixed support frame also includes two sets of fixed vertical plates, and the fixed connecting rod includes a first fixed connecting rod and a second fixed connecting rod, with the first fixed connecting rod located above the second fixed connecting rod and the fixed connecting rod connecting between the two sets of fixed vertical plates.

[0007] As a further implementation, the lifting frame includes two sets of movable vertical plates, with a movable connecting rod disposed between the two sets of movable vertical plates, and the movable connecting rod is positioned near the bottom of the movable vertical plates.

[0008] As a further implementation, the top ends of the two sets of movable vertical plates are connected to the top plate via folding hinges, and the bottom ends of the two sets of fixed vertical plates are connected to the bottom plate via folding hinges.

[0009] As a further implementation, the main connecting rod and the secondary connecting rod are always parallel, the length of the main connecting rod is greater than the length of the secondary connecting rod, the secondary connecting rod connects the fixed support frame and the lifting movable frame, and the two ends of the main connecting rod are located on both sides of the fixed support frame.

[0010] As a further implementation, the fixed support frame is also provided with a third fixed connecting rod, which is located below the second fixed connecting rod; the main connecting rod has a fixing hole at the end away from the lifting movable frame, and the fixing hole is locked to the third fixed connecting rod by a fixing connector.

[0011] As a further implementation, the main connecting rod and the auxiliary connecting rod are sleeved on the movable connecting rod and the fixed connecting rod through through holes.

[0012] As a further implementation, the third fixed connecting rod is provided with a through hole.

[0013] As a further implementation, the fixing connector includes an elastic band, one end of which is connected to a fixing hole and the other end is connected to a locking member, which is used to fix it to the third fixing connecting rod.

[0014] Secondly, a method for using a simplified lifting and supporting fixture, employing any of the lifting and supporting fixtures described above, includes the following steps: The tool is placed vertically inside the vehicle. The end of the main connecting rod is pulled, and the top of the lifting frame is raised under the action of the parallelogram mechanism until the top of the frame touches the center panel of the bus interior. The main connecting rod is locked to the fixed support frame through the fixed connector, so that the lifting frame is always pressed against the center panel of the bus interior.

[0015] The beneficial effects of the present invention are as follows: 1. The lifting and supporting fixture of the present invention comprises a connecting rod, a fixed support frame, and a lifting movable frame combined into a parallelogram mechanism. Pulling the other end of the main connecting rod enables the lifting movable frame to be raised and lowered. The main connecting rod is locked to the fixed support frame through a fixed connector. This solves the problem of the interior roof panel of a bus sagging due to gravity during the curing stage after bonding, ensuring the bonding quality of the roof panel. The fixture has a simple structure, is easy to operate, and is suitable for the assembly needs of different interior roof panels of buses.

[0016] 2. The lifting and supporting fixture of the present invention occupies a small volume when folded up, making it easy to carry into the car door. It requires little operating space to unfold, making it easy to unfold in the car door. When the fixture is folded up, it can be kept in the folded state by using elastic bands and locking components. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of the lifting and supporting tooling in an embodiment of the present invention; Figure 2 This is a side view of the lifting and supporting fixture in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the fixed support frame in an embodiment of the present invention; Figure 4 This is a schematic diagram of the support frame structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the main connecting rod in an embodiment of the present invention; Figure 6 This is a schematic diagram of the secondary connecting rod in an embodiment of the present invention; Figure 7 This is a schematic diagram of the retracted state of the lifting and supporting fixture in an embodiment of the present invention; Figure 8 This is a schematic diagram of the unfolded state of the lifting and supporting fixture in an embodiment of the present invention.

[0019] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0020] The components are as follows: 1. Fixed support frame, 11. First fixed connecting rod, 12. Second fixed connecting rod, 13. Third fixed connecting rod, 14. Fixed vertical plate; 2. Main connecting rod, 21. Through hole, 22. Through hole, 23. Fixed hole; 3. Secondary connecting rod, 31. Through hole, 32. Through hole; 4. Lifting movable frame, 41. First movable connecting rod, 42. Second movable connecting rod, 43. Movable vertical plate, 44. Top plate; 5. Fixed connecting piece, 6. Base plate, 61. Folding hinge. Detailed Implementation

[0021] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0022] Example 1 In a typical embodiment of the present invention, reference is made to Figures 1-8 As shown, a simple lifting and support fixture includes a connecting rod, a fixed support frame 1, and a lifting movable frame 4. The connecting rod is connected between the fixed support frame 1 and the lifting movable frame 4, forming a parallelogram mechanism. The connecting rod includes a main connecting rod 2 and a secondary connecting rod 3. Pulling one end of the main connecting rod can realize the lifting and lowering of the lifting movable frame 4. The main connecting rod 2 is locked to the fixed support frame 1 through a fixed connector 5.

[0023] The fixed support frame 1 is provided with two sets of parallel fixed connecting rods, and also includes two sets of fixed vertical plates 14. The two sets of fixed vertical plates 14 are at the same height, and the two sets of parallel fixed connecting rods are located between the opposite sides of the two sets of fixed vertical plates 14.

[0024] like Figure 3 As shown, the fixed connecting rod includes a first fixed connecting rod 11 and a second fixed connecting rod 12, with the first fixed connecting rod 11 located above the second fixed connecting rod 12. The first fixed connecting rod 11 is positioned near the top of the fixed vertical plate 14, and the second fixed connecting rod 12 is positioned near the top of the fixed vertical plate 14 and at a predetermined distance from the first fixed connecting rod 11.

[0025] A third fixed connecting rod 13 is also provided below the second fixed connecting rod 12. The third fixed connecting rod 13 is fixed between the opposite sides of the two sets of fixed vertical plates 14, and is set at a height close to the middle of the fixed vertical plates 14. The third fixed connecting rod 13 can be parallel to the second fixed connecting rod 12 or inclined relative to it, preferably parallel.

[0026] The third fixed connecting rod 13 can be used as a locking structure to cooperate with the fixed connecting piece 5 so that the tooling can be stably kept in the unfolded state.

[0027] The lifting frame 4 includes two sets of movable vertical plates 43. The lifting frame 4 is provided with two sets of parallel movable connecting rods, which are located between the opposite sides of the two sets of movable vertical plates.

[0028] like Figure 4As shown, the movable connecting rod includes a first movable connecting rod 41 and a second movable connecting rod 42. The first movable connecting rod 41 is higher than the second movable connecting rod 42. The movable connecting rod is located near the bottom of the movable vertical plate, while the second movable connecting rod 42 is located at the bottom of the movable vertical plate, so that the lifting movable frame has a larger lifting range.

[0029] In this embodiment, the lifting frame 4 is used to raise and form the interior roof panel of the bus, and the fixed support frame 1 is used to support the base and is supported on the floor mat inside the bus.

[0030] To improve the support performance of the tooling, the bottom ends of the two sets of fixed vertical plates 14 of the fixed support frame 1 are connected to the base plate 6 by folding hinges 61, and the top ends of the two sets of movable vertical plates of the lifting frame 4 are connected to the top plate 44 by folding hinges.

[0031] Understandably, the folding hinge 61 is an existing hinge structure with locking and unlocking functions, allowing the top and bottom plates to rotate within a 90° range. When tooling is needed, the bottom plate 6 and top plate 44 are opened, making them perpendicular to the fixed and movable vertical plates 44. The bottom plate 6 and top plate 44 have a larger surface area than the vertical plate structure. By setting the bottom plate 6, the tooling can be prevented from damaging the floor mat inside the bus. By setting the top plate 44, the support area is increased, and the support effect is improved.

[0032] like Figure 5 As shown, this is a schematic diagram of the main connecting rod 2. The main connecting rod 2 is a rod-shaped structure with a through hole 21 at one end, a through hole 22 near the middle, and a fixing hole 23 at the other end.

[0033] like Figure 6 As shown, this is a schematic diagram of the secondary connecting rod 3. The secondary connecting rod 3 is a rod-shaped structure with a through hole 31 at one end and a through hole 32 at the other end.

[0034] In this embodiment, the distance between the first fixed connecting rod 11 and the second fixed connecting rod 12 is the same as the distance between the first movable connecting rod 41 and the second movable connecting rod 42, so that the main connecting rod 2, the secondary connecting rod 3, the fixed support frame 1 and the lifting movable frame 4 form a parallelogram mechanism. The main connecting rod and the secondary connecting rod are always parallel, and the planes on which the fixed support frame and the lifting movable frame 4 are located are always parallel.

[0035] like Figure 1 As shown, the two ends of the auxiliary connecting rod are sleeved on the first fixed connecting rod 11 and the first movable connecting rod 41 located above through through holes 31 and through holes 32; one end of the main connecting rod is sleeved on the second movable connecting rod 42 located below through through hole 21, and near the middle position is sleeved on the second fixed connecting rod 12 through through hole 22; the other end of the main connecting rod is provided with a fixed connecting piece 5.

[0036] The length of the main connecting rod 2 is greater than the length of the secondary connecting rod 3. The secondary connecting rod 3 is connected between the fixed support frame 1 and the lifting movable frame 4. The two ends of the main connecting rod are located on both sides of the fixed support frame. One end is hinged to the lifting movable frame 4, and the other end is located on the side of the fixed support frame away from the lifting movable frame 4.

[0037] Specifically, the end of the main connecting rod 2 away from the lifting frame 4 is provided with a fixing hole 23, which is locked to the third fixing connecting rod through the fixing connector 5.

[0038] In a preferred embodiment, a through hole is provided at the middle position of the third fixed connecting rod 13. The fixed connecting member 5 includes an elastic band, one end of which is connected to the fixing hole 23, and the other end is connected to a locking member, which fixes it to the third fixed connecting rod 13.

[0039] The locking element can be a hook, such as... Figure 8 The state shown is the working state after the tooling is unfolded (the unfolded state of the top plate is not shown in the figure). The main connecting rod 2 rotates clockwise relative to the through hole 22 until it is close to the third fixed connecting rod 3. Pulling the hook causes the elastic band to extend, and the hook can be locked at the through hole. Alternatively, pull the elastic band to wrap it around the third fixed connecting rod 13, and finally the hook is hooked at the through hole.

[0040] Alternatively, the locking element can be Velcro. The third fixing connecting rod 13 has a hook surface on it, and the loop surface of the Velcro is connected to the end of the elastic band. The Velcro has a relatively long length, which can ensure good locking force.

[0041] Alternatively, the locking mechanism can be two nuts welded together, with one nut connected to an elastic band. When locking is required, the other nut is passed through a through hole, and a pin is inserted into the nut to lock it in place.

[0042] like Figure 7 As shown, this is the state after the lifting and supporting fixture is retracted. The base plate is not retracted. The fixture can be locked in place by the elastic band to keep it in the retracted state. Specifically, the elastic band passes through the fixing hole 23 at the end of the main connecting rod, between the first movable connecting rod 41 and the top plate, and then passes around the second movable connecting rod 42 before being tied to the third fixed connecting rod 13, so that the fixture cannot be unfolded at will.

[0043] The tooling in this embodiment occupies a small volume when folded up, and the cross-sectional area is small when the entire tooling is fully folded up, making it convenient for workers to carry it through the door and into the passenger car.

[0044] In this embodiment, both the connecting rod and the linking rod are round rod structures made of round wooden sticks. The vertical plate is a rectangular wooden board with round through holes whose inner diameter matches the outer diameter of the wooden stick. After the interior roof panel of the bus is glued on, the fixture is moved to a suitable position. Based on the height, width, and other parameters of the roof panel, the angle of the main linking rod is adjusted to ensure that the lifting frame stably supports the bottom of the roof panel. After the adhesive has completely cured, the fixture is removed, completing the support work.

[0045] Example 2 A method for using a simplified lifting and support fixture, employing the lifting and support fixture described in Embodiment 1, includes the following steps: Place the tooling upright inside the vehicle, unfold the bottom and top panels, then unlock the fixing connectors. Based on the height, width, and other parameters of the top panel, pull the end of the main connecting rod. Under the action of the parallelogram mechanism, the top of the lifting frame is raised until it touches the top panel of the bus interior. The main connecting rod is locked to the fixed support frame through the fixing connectors, so that the lifting frame is always pressed against the top panel of the bus interior.

[0046] This invention solves the problem of sagging due to gravity during the curing stage of the interior roof panel after bonding in passenger vehicles, ensuring the bonding quality of the roof panel. It has a simple structure, is easy to operate, and is suitable for the assembly needs of different passenger vehicle interior roof panels.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A simple lifting and supporting fixture, characterized in that, The device includes a connecting rod, a fixed support frame, and a lifting frame. The fixed support frame has two sets of parallel fixed connecting rods, and the lifting frame has two sets of parallel movable connecting rods. The connecting rod includes a main connecting rod and a secondary connecting rod. The two ends of the secondary connecting rod are sleeved on the upper fixed connecting rod and the movable connecting rod. One end of the main connecting rod is sleeved on the lower movable connecting rod, and near the middle, it is sleeved on the lower fixed connecting rod. The other end of the main connecting rod has a fixed connector. The connecting rod, the fixed support frame, and the lifting frame are combined to form a parallelogram mechanism. Pulling the other end of the main connecting rod raises and lowers the lifting frame. The main connecting rod is locked to the fixed support frame through the fixed connector.

2. The simplified lifting and supporting fixture according to claim 1, characterized in that, The fixed support frame also includes two sets of fixed vertical plates, and the fixed connecting rod includes a first fixed connecting rod and a second fixed connecting rod. The first fixed connecting rod is located above the second fixed connecting rod, and the fixed connecting rod is connected between the two sets of fixed vertical plates.

3. The simplified lifting and supporting fixture according to claim 2, characterized in that, The lifting frame includes two sets of movable vertical plates, and a movable connecting rod is located between the two sets of movable vertical plates, with the movable connecting rod positioned near the bottom of the movable vertical plates.

4. The simplified lifting and supporting fixture according to claim 3, characterized in that, The top ends of the two sets of movable vertical plates are connected to the top plate via folding hinges, and the bottom ends of the two sets of fixed vertical plates are connected to the bottom plate via folding hinges.

5. A simplified lifting and supporting fixture according to claim 3, characterized in that, The main connecting rod and the secondary connecting rod are always parallel. The length of the main connecting rod is greater than the length of the secondary connecting rod. The secondary connecting rod connects the fixed support frame and the lifting movable frame. The two ends of the main connecting rod are located on both sides of the fixed support frame.

6. The simplified lifting and supporting fixture according to claim 5, characterized in that, The fixed support frame is also provided with a third fixed connecting rod, which is located below the second fixed connecting rod; the main connecting rod has a fixing hole at the end away from the lifting frame, and the fixing hole is locked to the third fixed connecting rod by a fixing connector.

7. A simplified lifting and supporting fixture according to claim 3, characterized in that, The main connecting rod and the auxiliary connecting rod are sleeved on the movable connecting rod and the fixed connecting rod through through holes.

8. A simplified lifting and supporting fixture according to claim 6, characterized in that, The third fixed connecting rod is provided with a through hole.

9. A simplified lifting and supporting fixture according to claim 8, characterized in that, The fixing connector includes an elastic band, one end of which is connected to a fixing hole and the other end is connected to a locking member, which is used to fix it to the third fixing connecting rod.

10. A method for using a simple lifting and supporting fixture, characterized in that, The lifting and support fixture as described in any one of claims 1-9 includes the following steps: The tool is placed vertically inside the vehicle. The end of the main connecting rod is pulled, and the top of the lifting frame is raised under the action of the parallelogram mechanism until the top of the frame touches the center panel of the bus interior. The main connecting rod is locked to the fixed support frame through the fixed connector, so that the lifting frame is always pressed against the center panel of the bus interior.

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