Drawer extension device and puller assembly

Abstract

The utility model discloses a drawing device extension device and a drawing device assembly, which comprise a main beam and a movable arm which is arranged on the main beam and can move along the main beam, and a connecting disc which can adjust the connecting position is arranged at the tail end of the movable arm. The extension device can be additionally arranged on one side or two sides of the drawing device to extend the application range on a metal plate, the distance in the horizontal direction can be increased through the main beam of the extension device, the longitudinal moving distance can be extended through the movable arm, and then the connecting angle between the extension device and the metal plate can be further increased through the connecting disc.

Description

Technical Field

[0001] The utility model relates to the field of sheet metal hand tools, in particular to a puller extension device and a puller assembly. Background Art

[0002] General sheet metal hand tools are often used in automotive sheet metal adjustment or repair operations. From the early manual adjustment and repair, many mechanical hand tools have been developed to replace manual labor, thereby greatly improving the efficiency of sheet metal repair and adjustment work.

[0003] In general sheet metal correction work, a puller is used to adjust or correct the deformed sheet metal surface. The puller is equipped with at least two suction cups, which can be attached to the deformed surface of the sheet metal. Then, external force is applied to trim the sheet metal surface to achieve the effect of assisting repair.

[0004] However, generally, existing pullers have fixed or movable designs. The so-called fixed design means that the position of the suction cup on the puller is fixed and cannot be adjusted, so a puller with a movable design has been derived. The puller with a movable design means that the position of the suction cup can be movably adjusted. However, due to the different structural designs of the pullers, the usual movable pullers are designed in a U shape, that is, based on a main crossbeam, longitudinal and movable longitudinal rods on the left and right sides are installed to install the suction cups. Due to the length of the main crossbeam, the movable space of the left and right longitudinal rods is limited. If a sheet metal with a large repair area is encountered, this type of movable puller cannot be applied. Therefore, there is a large room for improvement. Based on such defects, the inventor provides a solution of the present invention. Utility Model Content

[0005] In view of the fact that the movable space of existing movable pullers is limited by the main body crossbeam, resulting in a small range of use, the inventors have provided a puller extension device, comprising: a main beam provided with an interface for connecting to the puller, the main beam being provided with a track; a movable arm disposed on the main beam and movable along the main beam track; and a connecting plate disposed at the end of the movable arm, the connecting plate being provided with a connecting structure with an adjustable connection position.

[0006] Preferably, the connection structure is a bidirectionally movable pivot structure.

[0007] Preferably, the connection structure is a universal connection structure.

[0008] Preferably, the movable arm is provided with a movable switch, and the movable arm can fix the main beam through the movable switch.

[0009] Preferably, the puller extension device is further provided with a pulling device, and the pulling device is detachably arranged on the track of the main beam and can move along the track.

[0010] Preferably, the puller extension device and the pulling device include a seat and a movable pull rod. The seat is detachably arranged on the main beam and can be moved to a positioned position along the track. The movable pull rod can move longitudinally relative to the seat.

[0011] Preferably, the puller extension device and the movable pull rod of the pulling device are further combined with a hanging head.

[0012] The inventors further provide a puller assembly, comprising a puller having a connection at at least one end; the aforementioned puller extension device is detachably arranged at the connection of the puller and connected to the connection via an interface of the main beam.

[0013] Preferably, the puller is provided with a connection at each end, and the two puller extension devices are respectively provided at the connection points corresponding to the positions.

[0014] Preferably, the puller is a purely manual, semi-electric or fully electric drive structure.

[0015] The beneficial effects of the present invention are:

[0016] 1. The puller extension device of the present invention can be applied to and assembled on the existing puller. By extending the length and the force arm, the construction distance is increased and the force applied is reduced, thereby achieving the effect of improving versatility.

[0017] 2. The present invention can be used with a general manually adjustable mechanical component structure, and can also be modified into an electrically adjustable mechanical component structure according to needs. The electrically adjustable component structure can reduce manpower output and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an exploded schematic diagram of the puller assembly in a preferred embodiment of the present invention.

[0019] Figure 2 This is a front view of the puller extension device in a preferred embodiment of the present invention.

[0020] Figure 3 This is a front view of another connection structure of the puller extension device in a preferred embodiment of the present invention.

[0021] Figure 4This is a front view of another connection structure of the puller extension device in a preferred embodiment of the present invention.

[0022] Figure 5 This is a front view of the puller extension device further connected to the pulling device in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following is a detailed description of the technical means used by the present invention to achieve the intended purpose of the present invention with reference to the drawings and preferred embodiments of the present invention.

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "one side," "one end," "one side," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, unless otherwise specified, "a plurality" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] It should also be understood that the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0028] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] The accompanying drawings illustrate various schematic diagrams of structures according to embodiments disclosed herein. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes, relative sizes, and positional relationships of the various regions and layers shown in the figures are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions as needed.

[0030] like Figures 1 to 5 As shown, the present invention discloses a puller extension device and a puller assembly, which can be seen in FIG. Figure 1 As shown, the two sides of the puller A can be equipped with the puller extension device B of the present invention according to the needs. Figure 1 In the embodiment, two connections A1 are provided on either side of the puller A, corresponding to the puller extension device B. The puller extension device B can be detachably connected to each of these connections A1. These connections A1 can be fixed to the puller A or detachably assembled thereto, which is not a limitation in the present invention. In short, the puller extension device B can be detachably assembled to either or both sides of the puller A, and can be assembled according to user requirements. Assembly to the main beam of the puller A is also not excluded.

[0031] Among them, the puller A can be a purely manual, semi-electric or fully electric drive structure. Pure manual adjustment is generally the most common. Semi-electric adjustment means that an external hexagonal connector is provided on the puller A. After being connected with the hexagonal socket of a common electric hand tool, it can be driven by the electric hand tool. The fully electric puller is directly provided with an electric motor on the puller A, which can be further equipped with a reducer to increase the torque and increase the driving power. If the puller extension device B requires a larger power drive, a semi-electric / fully electric puller A can be used to achieve better work efficiency.

[0032] like Figure 2 As shown, it is the puller extension device B, which includes a main beam 10 and a movable arm 20 arranged on the main beam 10 and movable along the main beam 10, and a connecting plate 30 with an adjustable connection position is provided at the end of the movable arm 20.

[0033] Among them, the main beam 10 can be composed of a single beam body or a beam body composed of multiple plate bodies. In this embodiment, the main beam 10 is a single beam body, and a track 11 is provided on the main beam 10 along the extension direction of the main beam 10. The track 11 can be built-in or external. For example, using the main beam 10 as the main sliding track is an external structure. If a movable channel is provided inside the main beam 10, it is a built-in structure. Both are within the definition range of the aforementioned track. An interface 12 connected to the puller A is provided on one side of the main beam 10. The interface 12 can be fixed on the main beam 10 or be detachable, such as by snap fastening, screw locking or concave-convex matching. In this embodiment, the interface 12 is fixed and matches the interface of the puller A. The main beam 10 is provided with a retaining edge 13 on the other side where the interface 12 is provided, which is used to prevent the movable arm 20 from sliding out of the main beam 10.

[0034] The movable arm 20 is movably arranged on the main beam 10 and can slide along the extension direction of the track 11. In this embodiment, the movable arm 20 is externally arranged on the track 11 of the main beam 10. In addition, the movable arm 20 can also be arranged on the built-in track, such as being movably arranged in the built-in track in a plate-like or sheet-like manner. The movable arm 20 can further be provided with a movable switch 21, and the movable arm 20 can be locked on the main beam 10 by the movable switch 21 to fix it in a specific position. The movable arm 20 can be as follows Figure 4 A single arm as shown, or Figure 2 、 3 As shown, the movable arm 20 is connected by more than two arms. When the movable arm 20 is a single arm, the length of the movable arm 20 cannot be adjusted. When the movable arm 20 is connected by two arms, the length of the movable arm 20 can be adjusted telescopically. The length setting of the movable arm 20 can be adjusted according to user needs to determine whether it is an adjustable length or non-adjustable length type, which is not limited here.

[0035] Figure 2 、 3 As shown, when the movable arm 20 is configured to connect two arm bodies, bolts or clips for fixing can be added as needed to fix the length of the movable arm 20 after extension or shortening. The relevant fixing methods are all existing technologies and will not be explained here.

[0036] The connecting plate 30 is provided on a side of the movable arm 20 different from the side connected to the main beam 10. The connecting plate 30 is connected to the movable arm 20 by a connecting structure 31. The connecting structure 31 can be a two-way movable pivot structure or a multi-directional universal connecting structure. For example, the connecting structure 31 can be a simple single shaft connection or a single shaft connection with two side arms, such as Figure 3As shown, the connecting plate 30 can swing forward and backward relative to the movable arm 20 by 0 to 180 degrees, or as shown in FIG. Figure 2 As shown, it can swing left and right with a rotation angle of 0 to 180 degrees.

[0037] Another example is Figure 4 As shown, the connection structure 31 is in the form of a universal joint, which enables the connection plate 30 to rotate relative to the movable arm 20 within a range of 0 to 360 degrees.

[0038] The connection structure 31 can be configured based on existing mechanical structures, so that the connection plate 30 can be rotated relative to the movable arm 20 to a desired position and can be adjusted within a wide range to meet the needs of different users.

[0039] like Figure 5 As shown, the present invention can be further combined with a pulling device 40, which is detachably arranged on the main beam 10, specifically, arranged at the central position of the main beam 10. The pulling device 40 includes a seat 41, a movable pull rod 42 and a hanging head 43. The seat 41 is detachably arranged on the main beam 10 and can be moved along the track 11 to the positioned position.

[0040] The movable pull rod 42 can move longitudinally relative to the base body 41. When the position of the movable pull rod 42 is adjusted, it can be displaced downward or upward relative to the longitudinal direction of the base body 41 to achieve a pulling effect. The movable pull rod 42 can be adjusted manually or electrically. For example, in the manual adjustment type, a screw hole is provided on the inner side of the base body 41, and the movable pull rod 42 is provided with a thread matching the base body 41. Rotating the movable pull rod 42 can move upward or downward relative to the base body 41.

[0041] If the adjustment is done electrically, a motor and a transmission member can be installed inside the base 41 . The motor is driven by electricity to move the movable rod 42 relative to the base 41 .

[0042] In the present invention, manual adjustment is mainly adopted, but electric adjustment is not excluded.

[0043] The hanging head 43 is arranged at the bottom of the movable pull rod 42 and can be used to connect other dipping sheets or connecting plates.

[0044] like Figure 1As shown, the specific operation method of the present invention is as follows. When the original puller A cannot correspond to the defects on the sheet metal within the range of its extension length, it is adjusted according to user needs to decide whether to assemble a puller extension device B on one side, or to assemble a puller extension device B on each side of the puller A. After assembly, the application area of ​​the original puller A can be effectively increased, allowing the area that was originally unable to be extended to be used, further increasing the scope of use. The puller extension device B can also be driven manually or electrically according to needs, which can also improve work efficiency.

[0045] The beneficial effects of the present invention are:

[0046] 1. The puller extension device of the present invention can be applied to and assembled on the existing puller. By extending the length and the force arm, the construction distance is increased and the force applied is reduced, thereby achieving the effect of improving versatility.

[0047] 2. The present invention can be used with a general manually adjustable mechanical component structure, and can also be modified into an electrically adjustable mechanical component structure according to needs. The electrically adjustable component structure can reduce manpower output and improve work efficiency.

[0048] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A puller extension device, characterized in that: include: a main beam provided with an interface for connecting to a puller, the main beam being provided with a track; a movable arm, which is mounted on the main beam and can move along the track of the main beam; A connecting plate is arranged at the end of the movable arm, and a connecting structure capable of adjusting the connecting position is arranged on the connecting plate.

2. The puller extension device according to claim 1, characterized in that The connecting structure is a bidirectional movable hinge structure.

3. The puller extension device according to claim 1, wherein: The connection structure is a universal connection structure.

4. The puller extension device according to any one of claims 1 to 3, characterized in that The movable arm is provided with a movable switch, and the movable arm can fix the main beam through the movable switch.

5. The puller extension device according to any one of claims 1 to 3, characterized in that A pulling device is further provided, and the pulling device is detachably arranged on the track of the main beam and can move along the track.

6. The puller extension device according to claim 5, characterized in that The pulling device includes a base and a movable pull rod. The base is detachably arranged on the main beam and can be moved to a predetermined position along the track. The movable pull rod can move longitudinally relative to the base.

7. The puller extension device according to claim 6, characterized in that The movable pull rod of the pulling device is further combined with a hanging head.

8. A puller assembly, characterized in that: include: A puller having a connection at at least one end; At least one puller extension device according to any one of claims 1 to 7 is detachably arranged at the connection of the puller, and is connected to the connection correspondingly by the interface of the main beam.

9. The puller assembly according to claim 8, wherein: The puller is provided with a connection point at each end, and the two puller extension devices are respectively provided at the connection points corresponding to the positions.

10. The puller assembly according to claim 8 or 9, characterized in that The puller has a driving structure of purely manual, semi-electric or fully electric.

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