Roller bed lifting tool

Abstract

The application relates to a roller bed lifting tool, which comprises a first rod, a long member extending along a first direction; a second rod, a long member extending along the first direction, the second rod being arranged in the first rod; a driving assembly arranged between the first rod and the second rod; a supporting part arranged on the first rod and extending towards a second direction; wherein the sum of the length dimensions of the first rod and the supporting part in the second direction is greater than the greater length dimension of the first rod and the supporting part in a third direction, the third direction being perpendicular to the second direction, and the second direction and the third direction are both perpendicular to the first direction. According to the roller bed lifting tool provided by the application, the roller bed can be conveniently and safely lifted under the driving of the driving assembly, the consumption of man-hours and working hours is reduced, the tool is arranged in the gap between the roller bed and an operation table, then the tool is rotated to make the supporting part cooperate with the bottom of the roller bed, and the operation in the narrow space between the roller bed and the operation table is facilitated.

Description

Technical Field

[0001] This application relates to the field of roller bed repair technology, and in particular to roller bed lifting tools. Background Technology

[0002] In the automotive manufacturing industry, roller beds are commonly used for lifting and translating car bodies. Currently, the roller beds used in the workshop adopt a hinged four-bar lifting mechanism design, which has a large instantaneous starting torque. This frequently causes the screw between the drive motor and the bed to break. After the screw breaks, the bed collapses, requiring the roller bed to be repaired. The roller bed is installed on the operating table, and maintenance requires multiple people to work together to lift the roller bed for maintenance. This consumes a lot of manpower and time, and the operating space is limited, which can easily cause personal injury. Utility Model Content

[0003] The purpose of this application is to provide a roller bed lifting tool that can conveniently and safely lift the roller bed, thereby effectively solving the shortcomings of the prior art.

[0004] Therefore, embodiments of this application provide a roller bed lifting tool, including:

[0005] The first rod is an elongated component that extends along a first direction;

[0006] The second rod is an elongated member that extends along the first direction and can be movably inserted through the first rod;

[0007] A drive assembly is disposed between the first rod and the second rod for driving the first rod and the second rod to extend and retract in a first direction;

[0008] A support portion is disposed on the first rod and extends toward the second direction;

[0009] Wherein, the sum of the lengths of the first rod and the support in the second direction is greater than the larger length of the first rod and the support in the third direction, the third direction being perpendicular to the second direction, and both the second direction and the third direction being perpendicular to the first direction.

[0010] In some possible implementations, both the first rod and the second rod are elongated cylindrical in shape, and the drive assembly includes a threaded rod and a screwing assembly for screwing the threaded rod. The threaded rod is located inside the first rod and is rotatably mounted on the first rod. The threaded rod and the second rod are threadedly engaged.

[0011] In some possible implementations, the screwing assembly includes a base and a drive shaft. The base is provided with a first bevel gear and a second bevel gear that cooperate with each other. The first bevel gear is mounted on a threaded rod, the drive shaft is rotatably mounted on the base, and the second bevel gear is mounted on the drive shaft.

[0012] In some possible implementations, the axial direction of the drive shaft is parallel to the second direction.

[0013] In some possible implementations, one end of the drive shaft is detachably provided with a crank handle for turning the drive shaft.

[0014] In some possible implementations, the drive shaft is provided with a slot with a polygonal cross-section, and the crank is provided with a plug that can be inserted into the slot, the cross-section of the plug being adapted to the cross-section of the slot.

[0015] In some possible implementations, the support extends in the positive direction of the second direction, and the crank is located at the end of the drive shaft that extends in the opposite direction of the second direction.

[0016] In some possible implementations, the outer side of the second rod is provided with a plurality of limiting protrusions at intervals, and the first rod is movably provided with a limiting rod, which can abut against the limiting protrusions to limit the relative shortening of the first rod and the second rod.

[0017] In some possible implementations, both the first and second rods have rectangular cross-sections.

[0018] In some possible implementations, a reinforcing rod is provided between the support and the first rod.

[0019] According to the roller bed lifting tool provided in the embodiments of this application, under the drive of the drive assembly, the first rod can extend and retract relative to the second rod, which can conveniently and safely lift the roller bed, thus reducing the consumption of manpower and labor time. Moreover, the sum of the length dimensions of the first rod and the support part in the second direction is greater than the larger length dimension of the first rod and the support part in the third direction. The third direction is perpendicular to the second direction, and both the second direction and the third direction are perpendicular to the first direction, which makes it convenient to place the tool in the gap between the roller bed and the operating table. Then, by rotating the tool, the support part and the bottom of the roller bed can be engaged, which is convenient for operation in the narrow space between the roller bed and the operating table. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the roller bed lifting tool provided in the embodiments of this application;

[0021] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the roller bed lifting tool provided in the embodiment of this application after removing the first rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] like Figures 1-4 As shown in the illustration, this application provides a roller bed lifting tool for use in automobile manufacturing workshops. It is used to lift and raise roller beds. On automobile production lines, roller beds are frequently used for operations such as translating and raising the car body. Currently, the roller beds used in workshops are designed with a hinged four-bar lifting mechanism, which has a large instantaneous starting torque, easily causing the screw between the drive motor and the bed to break. A broken screw leads to bed collapse, requiring roller bed repair. The roller bed is recessed and installed on the operating table, requiring multiple people to lift it during repairs. This results in high manual labor intensity, significant time and labor costs, and limited operating space, increasing the risk of injury if not handled properly. The roller bed lifting tool provided in this application aims to improve the convenience of lifting roller beds, providing a convenient lifting tool for use in confined spaces. The roller bed is recessed and installed on the operating table, with a small gap between the roller bed and the operating table. Manually lifting the roller bed through this gap is inconvenient and can easily cause injury. The lifting tool provided in this application is suitable for use in such confined spaces.

[0026] The roller bed lifting tool includes a first rod 100, a second rod 200, and a drive assembly. The first rod 100 is an elongated member extending along a first direction, and the second rod 200 is also an elongated member extending along the first direction. The second rod 200 is movably inserted through the first rod 100. The drive assembly is disposed between the first rod 100 and the second rod 200 and is used to drive the first rod 100 and the second rod 200 to extend and retract along the first direction.

[0027] It also includes a support part 300, which is disposed on the first rod 100 and extends in a second direction on the first rod 100. Taking the first direction as the vertical direction as an example, the top end of the second rod 200 extends movably into the bottom end of the first rod 100. In use, the device is inserted into the gap between the roller bed and the operating table, so that the bottom end of the second rod 200 abuts against the working surface below, and the support part 300 abuts against the side force point of the roller bed. Then, driven by the drive device, the first rod 100 and the second rod 200 extend, thereby lifting the roller bed. Multiple of these tools can be used around the roller bed, thereby facilitating the lifting of the roller bed, greatly reducing manpower and labor consumption, and improving maintenance efficiency.

[0028] Preferably, the sum of the lengths of the first rod 100 and the support portion 300 in the second direction is greater than the larger length of the first rod 100 and the support portion 300 in the third direction. The third direction and the second direction are perpendicular to each other, and both the second direction and the third direction are perpendicular to the first direction. In this embodiment, the first direction is taken as the vertical direction, the second direction as the left-right direction, and the third direction as the front-back direction. The top of the second rod 200 can be movably inserted into the first rod 100, and the cross-sectional dimension of the second rod 200 is smaller than that of the first rod 100. In other words, in the vertical projection, the projection of the second rod 200 is within the projection of the first rod 100. The right end of the support portion 300 is connected to the left side of the first rod 100. The left end of part 300 extends horizontally to the left. The sum of the left and right lengths of the first rod 100 and the support part 300 is greater than the thickness of the thicker part of the first rod 100 and the support part 300 in the front-back direction. Moreover, the thickness of the thicker part is less than the gap between the roller bed and the operating table in the workshop. First, the tool is laid down and placed in the gap between the roller bed and the operating table. Then, the tool is erected and rotated as a whole, so that the support part 300 swings under the force point of the roller bed. The bottom of the second rod 200 abuts against the working surface below. Then, the first rod 100 and the second rod 200 are extended as a whole by the drive assembly to lift the roller bed. In this way, the applicability of the tool in narrow spaces can be greatly improved, and the convenience is further enhanced.

[0029] Preferably, both the first rod 100 and the second rod 200 are elongated cylindrical, and both have hollow cylindrical structures. The drive assembly includes a threaded rod 400 and a screwing assembly for screwing the threaded rod 400. The threaded rod 400 is located inside the first rod 100 and is rotatably mounted on the first rod 100. The threaded rod 400 and the second rod 200 are threadedly fitted together. The top of the threaded rod 400 extends beyond the top of the first rod 100, and the top of the first rod 100 and the threaded rod 400 can be connected by a bearing. This enables a rotational connection between the threaded rod 400 and the first rod 100. When the second rod 200 is inserted upward into the first rod 100, the bottom of the threaded rod 400 will also extend into the second rod 200 at the top. A nut can be welded to the top of the second rod 200, and the nut and the threaded rod 400 are threaded together. The screwing assembly is connected to the top of the part of the threaded rod 400 that extends out of the first rod 100. By screwing the threaded rod 400, the first rod 100 and the second rod 200 can be lengthened or shortened.

[0030] In this embodiment, the screwing assembly includes a base 50 and a drive shaft 51. The base 50 is located at the top of the first rod 100, and the top of the threaded rod 400 extends into the base 50. A first bevel gear 601 and a second bevel gear 602 mesh with each other are provided in the base 50. The first bevel gear 601 is mounted on the top of the threaded rod 400 and is coaxial with the threaded rod 400. The second bevel gear 602 is mounted on the drive shaft 51, which is rotatably mounted on the base 50. The axial direction of the drive shaft 51 is parallel to a second direction. When the first direction is vertical, the axial direction of the drive shaft 51 is horizontal. The second bevel gear 602 is coaxial with the drive shaft 51. A crank handle 70 is detachably provided at one end of the drive shaft 51. By screwing the drive shaft 51 with the crank handle 70, the threaded rod 400 can be rotated, thereby facilitating the extension and retraction of the first rod 100 and the second rod 200.

[0031] The base 50 can be in the form of a portal frame, as long as it can accommodate the installation of all components. The bottom of the base 50 is connected to the top of the first rod 100.

[0032] Preferably, a slot is provided at the end of the drive shaft 51, the slot is recessed into the end face of the drive shaft 51, and the inner wall of the slot has a polygonal cross-section. A plug is provided at one end of the crank handle 70, the cross-sectional shape of the plug is adapted to the cross-sectional shape of the slot, and the cross-sectional shape of the plug is also polygonal. The plug can be inserted into the slot to achieve circumferential positioning. After the plug is inserted into the slot, the plug and the drive shaft 51 are coaxial, which can facilitate the connection and disconnection of the crank handle 70 and the drive shaft 51. After the plug is inserted into the slot, the drive shaft 51 can be screwed to complete the drive of the threaded rod 400 between the first rod 100 and the second rod 200.

[0033] More preferably, the extension direction of the support 300 is the positive direction of the second direction, and the crank handle 70 is disposed at the end of the drive shaft 51 that extends in the opposite direction of the second direction. That is, after the tool is placed in the gap between the roller bed and the operating table, and the support 300 is facing inward and abutting against the bottom of the roller bed, one end of the drive shaft 51 faces outward, which facilitates the installation of the crank handle 70 and the turning operation of the crank handle 70.

[0034] In a preferred embodiment, the first rod 100 and the second rod 200 both have rectangular cross sections. Both the first rod 100 and the second rod 200 are hollow cylinders with rectangular cross sections. The second rod 200 can be movably inserted into the first rod 100. The outer wall of the second rod 200 and the inner wall of the first rod 100 are in sliding contact, which can effectively restrict the circumferential rotation of the first rod 100 relative to the second rod 200, making the overall extension and retraction more stable.

[0035] Multiple limiting protrusions 801 are provided on one outer side of the second rod 200 along its direction. These limiting protrusions 801 protrude from the outer wall of the second rod 200. In this embodiment, both the first rod 100 and the second rod 200 are rectangular cross-section cylinders. When the second rod 200 extends into the first rod 100, there is a gap between one side of the second rod 200 and the first rod 100. This side of the second rod 200 is the side where the limiting protrusions 801 are provided. Multiple limiting protrusions 801 are arranged at intervals along the direction of the second rod 200. The limiting protrusions 801 slide in contact with the inner wall of the first rod 100. A limiting rod 802 is movably provided at the bottom end of the first rod 100. The middle part of the limiting rod 802 is hinged to the bottom of the first rod 100, and it is limited by swinging. The lever 802 allows one end of the limiting lever 802 to abut the top of a limiting protrusion 801, thus limiting the relative shortening of the first lever 100 and the second lever 200. Therefore, when the roller bed is lifted using this tool, the limiting lever 802 and the limiting protrusion 801 work together to achieve limiting, improving load-bearing stability. It should be noted that, regarding the spacing between adjacent limiting protrusions 801, when the roller bed is lifted, there may be situations where the limiting lever 802 cannot engage with a particular limiting protrusion 801. In this case, the roller bed can be raised further until the limiting lever 802 can be tightly engaged with the upper limiting protrusion 801. A spring can be installed between the limiting lever 802 and the first lever 100 to prevent the limiting lever 802 and the limiting protrusion 801 from accidentally disengaging.

[0036] More preferably, the support part 300 is a long rod shape. The right end of the support part 300 is connected to the outer side of the first rod 100, and the left end of the support part 300 extends to the left. A reinforcing rod 301 is provided between the support part 300 and the first rod 100. One end of the reinforcing rod 301 is connected to the left end of the support part 300, and the other end of the reinforcing rod 301 is connected to the outer wall of the first rod 100, forming a triangular support to improve the local structural strength. A support plate 201 can be provided at the bottom of the second rod 200. The support plate 201 has a certain length and is perpendicular to the second rod 200. One end of the support plate 201 is connected to the second rod 200, and the other end of the support plate 201 extends to the left. Moreover, the width of the support plate 201 in the front-to-back direction is not greater than the gap width between the roller bed and the operating table to avoid interference when the tool is placed. The setting of the support plate 201 helps to improve the stability of the tool when it is erected.

[0037] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0038] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0039] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. Roll bed lifting tool, characterized in that, include: The first rod is an elongated component that extends along a first direction; The second rod is an elongated member that extends along the first direction and can be movably inserted through the first rod; A drive assembly is disposed between the first rod and the second rod for driving the first rod and the second rod to extend and retract in a first direction; A support portion is disposed on the first rod and extends toward the second direction; Wherein, the sum of the lengths of the first rod and the support in the second direction is greater than the larger length of the first rod and the support in the third direction, the third direction being perpendicular to the second direction, and both the second direction and the third direction being perpendicular to the first direction.

2. The roller bed lifting tool according to claim 1, characterized in that: Both the first rod and the second rod are long cylindrical in shape. The drive assembly includes a threaded rod and a screwing assembly for screwing the threaded rod. The threaded rod is located inside the first rod and can be rotatably installed in the first rod. The threaded rod and the second rod are threadedly engaged.

3. The roller bed lifting tool according to claim 2, characterized in that: The screwing assembly includes a base and a drive shaft. The base is provided with a first bevel gear and a second bevel gear that cooperate with each other. The first bevel gear is mounted on a threaded rod, the drive shaft is rotatably mounted on the base, and the second bevel gear is mounted on the drive shaft.

4. The roll-lift tool of claim 3, wherein: The axis of the drive shaft is parallel to the second direction.

5. The roll-lift tool of claim 4, wherein: One end of the drive shaft is detachably equipped with a crank handle for turning the drive shaft.

6. The roll-lift tool of claim 5, wherein: The drive shaft is provided with a slot with a polygonal cross-section, and the crank handle is provided with a plug that can be inserted into the slot, the cross-section of the plug and the cross-section of the slot being adapted.

7. The roll-lift tool of claim 5, wherein: The extension direction of the support is the positive direction of the second direction, and the crank is located at the end of the drive shaft that extends in the opposite direction of the second direction.

8. The roll-lift tool of claim 1, wherein: The second rod has multiple limiting protrusions spaced apart on its outer side, and the first rod is movably provided with a limiting rod, which can abut against the limiting protrusions to limit the relative shortening of the first rod and the second rod.

9. The roll-lift tool of claim 1, wherein: Both the first and second rods have rectangular cross-sections.

10. The roller bed lifting tool according to claim 1, characterized in that: A reinforcing rod is provided between the support and the first rod.

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