Sheet metal hand tool capable of being rapidly pulled and reset

Abstract

The utility model discloses a sheet metal hand tool capable of being quickly pulled and reset, which comprises a hollow tubular grip, a cavity and a movable hole arranged at one end, a pull rod is provided with a piston part, a pull rod head connected to one end of the piston part, and a sheet metal connecting tool capable of being replaced and connected to the pull rod head, one end of a piston part of the pull rod penetrates through a movable hole of the grip and is arranged in a cavity of the grip, the piston part can axially move along the cavity of the grip, the elastic element is arranged in the grip and connected to the pull rod, and when the pull rod is pulled out relative to the grip, the pull rod can be reset to the original position through the elastic element. The metal plate defect repairing device has the beneficial effects that after the relative movement of the grip and the pull rod each time, the elastic element can be used for quickly drawing and resetting, so that the metal plate defect repairing action can be simplified, the effects of portability and quick action are achieved, the defects in a small area can be repaired, and the working efficiency is improved. The defects of an existing repairing tool are greatly overcome.

Description

Technical Field

[0001] The utility model relates to the field of sheet metal hand tools, in particular to a sheet metal hand tool which can be quickly pulled out and reset. Background Art

[0002] Generally, sheet metal hand tools are often used in the adjustment or repair of automotive sheet metal. From the early manual correction and repair by manpower, many mechanical hand tools that can replace manpower have been developed today, thereby greatly improving the efficiency of sheet metal repair and correction work.

[0003] In general sheet metal correction work, the mechanical tools used are designed for large-area sheet metal correction. There are few portable, small-area sheet metal correction tools. In view of the fact that some small-area sheet metal dents are not suitable for the use of large equipment and do not require a large correction area, in order to solve the problem that the current tools cannot perform targeted correction on small-area dents, the inventor proposed the concept of this design to improve the defects of existing sheet metal hand tools. Utility Model Content

[0004] In view of the fact that existing sheet metal hand tools are large equipment and are only suitable for large-area dent correction, the inventor provides a sheet metal hand tool that can be quickly pulled out and reset, which includes:

[0005] A handle in the shape of a hollow tube, including a cavity and a movable hole arranged at one end;

[0006] A pull rod, comprising a piston portion, a pull rod head connected to one end of the piston portion, and a sheet metal connection tool that can be replaced and connected to the pull rod head, wherein one end of the piston portion of the pull rod passes through the movable hole of the handle and is disposed in the cavity of the handle, and the piston portion can be moved axially along the cavity of the handle;

[0007] An elastic element is arranged in the handle and connected to the pull rod. When the pull rod is pulled out relative to the handle, it can be restored to its original position through the elastic element.

[0008] Preferably, in the sheet metal hand tool that can be quickly pulled out and reset, the piston portion is a stepped shaft and gradually shrinks from the rear end to the front end.

[0009] Preferably, in the sheet metal hand tool capable of rapid pulling and resetting, the piston portion includes a sleeve section which can be used to sleeve the elastic element.

[0010] Preferably, in the sheet metal hand tool that can be quickly pulled out and reset, the piston portion includes a connecting section, and the front end of the connecting section is connected to the pull rod head in a threaded manner.

[0011] Preferably, in the sheet metal hand tool capable of rapid pulling and resetting, the pull rod head is connected to the piston portion in a screwing manner.

[0012] Preferably, in the sheet metal hand tool that can be quickly pulled out and reset, the sheet metal connecting tool is detachably connected to the front end of the pull rod head in a screw-type manner, and the sheet metal connecting tool is in the shape of a suction cup.

[0013] Preferably, the sheet metal hand tool that can be quickly pulled out and reset, wherein the handle includes a gripping portion in the shape of a hollow tube, an end cover connected to the front end of the gripping portion and a tail cover connected to the rear end, the movable hole is arranged on the end cover, and the cavity is formed in the gripping portion.

[0014] Preferably, the sheet metal hand tool that can be quickly pulled out and reset, wherein the sheet metal connecting tool is detachably connected to the front end of the pull rod head, and the sheet metal connecting tool is a pulling piece.

[0015] Preferably, in the sheet metal hand tool that can be quickly pulled out and reset, the handle is further provided with a lubrication assembly, which covers the piston part of the pull rod and is used to reduce the friction between the piston part and the handle.

[0016] Preferably, in the sheet metal hand tool that can be quickly pulled out and reset, the elastic element is a compression spring.

[0017] The beneficial effect of the present invention is that after the relative movement of the handle and the pull rod, they can be quickly reset by means of the elastic element, so that the action of repairing sheet metal defects can be simplified, and it also has the effects of portability and rapid actuation, and can also only repair defects in small areas, which greatly improves the shortcomings of existing repair tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of a preferred embodiment of the utility model.

[0019] Figure 2 It is a front cross-sectional schematic diagram of a preferred embodiment of the utility model.

[0020] Figure 3 It is a three-dimensional diagram of a preferred embodiment of the utility model in a pulling state.

[0021] Figure 4 It is a schematic diagram of the operation of a partial cross section of a preferred embodiment of the utility model in a drawing state.

[0022] Figure 5 It is a front cross-sectional schematic diagram of another preferred embodiment of the utility model.

[0023] Figure 6It is a cross-sectional schematic diagram of another preferred embodiment of the utility model.

[0024] Figure 7 It is a three-dimensional diagram of another preferred embodiment of the utility model. DETAILED DESCRIPTION

[0025] 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.

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "one side", "one end", "one side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] The accompanying drawings show various structural schematic diagrams of the embodiments disclosed in the utility model. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0032] like Figures 1 to 4 As shown, the utility model discloses a sheet metal hand tool that can be quickly pulled out and reset, which includes a handle 10, a pull rod 20 that can be moved along the axial direction of the handle 10 and is arranged in the handle 10, and an elastic element 30 that is arranged in the handle 10 and connected to the pull rod.

[0033] The handle 10 includes a gripping portion 11 in the form of a hollow tube, an end cover 12 connected to the front end of the gripping portion 11 and a tail cover 13 at the rear end; a cavity 110 for accommodating the pull rod 20 is formed inside the gripping portion 11, and the end cover 12 is detachably connected to the front end of the gripping portion 11. The end cover 12 is provided with a through-shaped movable hole 121, through which one end of the pull rod 20 can be inserted into the cavity 110 of the gripping portion 11, and the pull rod 20 can move forward and backward along the axial direction of the movable hole 121, and the tail cover 13 can also be detachably connected and closed at the tail end of the gripping portion 11. Preferably, in the present embodiment, the end cover 12 and the tail cover 13 are respectively connected to the gripping portion 11 in a screwed manner. In order to facilitate disassembly, the end cover 12 and the tail cover 13 can also be connected to the gripping portion 11 in a snap-fit ​​or buckled manner. As long as the method of easy disassembly can be met, it is within the scope claimed by the present utility model.

[0034] The tie rod 20 includes a piston portion 21 , a tie rod head 22 connected to the front end of the piston portion 21 , and a sheet metal connecting tool 23 that is replaceable and connected to the tie rod head 22 .

[0035] The piston portion 21 is a stepped shaft and gradually tapers from the rear end to the front end. In this embodiment, the piston portion 21 includes three stages with different diameters. It can also be designed to have more or less than three stages according to needs, and the utility model is not limited here. Among them, there is a fitting section 211 at the rear end that is the same as or slightly smaller than the inner diameter of the cavity 110, and a sleeve section 212 with a diameter larger than the fitting section 211 and used to connect the elastic element 30 extends forward, and a connecting section 213 with the smallest diameter continues to protrude forward. The diameter of the connecting section 213 is equal to or slightly smaller than the aperture of the movable hole 121, and the front end of the connecting section 213 is connected to the pull rod head 22.

[0036] The tie rod head 22 is detachably connected to the front end of the piston part 21. In the present embodiment, the piston part 21 and the tie rod head 22 are connected by screwing. Similarly, the piston part 21 can also be connected to the tie rod head 22 by snapping or buckling. As long as the disassembly is easy, it is within the scope of the present invention.

[0037] The pull rod head 22 is a cylindrical shape with smaller front and rear diameters and a raised center. The pull rod head 22 is sleeved with one or more anti-slip rings 221 on its outer circumference. In this embodiment, two anti-slip rings 221 are provided.

[0038] The sheet metal connecting tool 23 is detachably connected to the front end of the pull rod head 22 in a screwing manner. In this embodiment, the sheet metal connecting tool 23 is in the shape of a suction cup and forms a stop ring 231 with the pull rod head 22 at the central position. The sheet metal connecting tool 23 can also be a common sheet metal connection joint shape on the market, such as a hook, a ring, a rivet, a hammer, etc., not limited to a suction cup shape, and is mainly used as a tool for repairing sheet metal defects, and can be connected to the pull rod head 22 accordingly. The utility model is not limited here.

[0039] like Figure 5 As shown, in another embodiment of the utility model, a lubrication component 14 can be further connected to the inner side of the end cover 12 of the handle 10. The lubrication component 14 can be selected from linear bearings, oil-free bushings and other lubrication components that can enhance the lubrication effect. The lubrication component 14 can preferably be selected from linear bearings. The handle 10 cooperates with the piston part 21 through the lubrication component 14. The rod body of the piston part 21 is covered by the lubrication component 14, which can make the piston part 21 of the pull rod 20 smoother during reciprocating motion, and can effectively improve durability and reduce wear.

[0040] Furthermore, a protective cover (not shown) can be further combined with the outside of the pull rod head 22 and the sheet metal connecting tool 23. The protective cover can cover the pull rod head 22 and the sheet metal connecting tool 23, and fit with the anti-slip ring 221, so that the protective cover will not fall off, and can achieve better protection effect when the utility model is not in use.

[0041] The elastic element 30 is disposed between the pull rod 20 and the handle 10. More specifically, in the present embodiment, the elastic element 30 is a compression spring, and its two ends are respectively sleeved on the outer side of the end cover 12 and the sleeve section 212 of the piston portion 21. The elastic element 30 can also be configured according to different requirements and is not limited to a compression spring. For example, under appropriate conditions, a torsion spring or a tension spring can also be used to meet different requirements, such as Figure 6 As shown, it is an embodiment of the utility model. The elastic element 30A uses a tension spring and is arranged between the handle 10 and the pull rod 20. When the pull rod 20 is pulled outward, the elastic element 30 can provide an elastic force to pull it back to the original position.

[0042] like Figures 1 to 4 As shown, the assembly method of the utility model is as follows: first, the handle 10 needs to be prepared, the tail cover 13 is installed on the gripping portion 11, and the pull rod 20 with the elastic element 30 is placed in the cavity 110, and then the end cover 12 is installed, so that the elastic element 30 in an uncompressed state is installed between the end cover 12 and the pull rod 20, and then the pull rod head 22 and the sheet metal connection tool 23 are installed in sequence to complete the assembly.

[0043] The usage of the present invention is described as follows. After the present invention is assembled in the above manner, the sheet metal connection tool 23 is aligned with the sheet metal defect that needs to be corrected, so that the sheet metal connection tool 23 can be tightly connected.

[0044] In the present embodiment, for example, if the sheet metal defect is in the form of a depression, the sheet metal connecting tool 23 can be tightly adsorbed to the part to be corrected, and then the pull rod 20 is held by hand and pulled backward violently. At this time, the defective part of the sheet metal can be pulled outward by external force, and the piston part 21 in the pull rod 20 will be connected to the sheet metal surface, and the handle 10 will move outward until the end cover 12 of the handle 10 hits the fitting section 211 of the piston part. At this time, in addition to the external force pulling, the displacement of the handle 10 has reached the extreme, and thus the elastic element 30 is compressed. When the rebound force of the elastic element 30 is greater than the external force applied, and if the external force no longer applies force to the depressed part of the sheet metal, the elastic element 30 will reset the piston part 21 back to the initial position, so that the pull rod 20 is reset to the state when it is not pulled.

[0045] Through repeated reciprocating pulling, the defects of the concave parts of the sheet metal can be restored to their original state under appropriate external force.

[0046] The utility model further provides Figure 7In the embodiment shown, the pull rod head 22A and the sheet metal connecting tool 23 are replaceable, and a slot 222 for the sheet metal connecting tool 223 is formed on the pull rod head 22A. The sheet metal connecting tool 223 is a continuously replaceable pulling piece, and also includes a connecting head 223 that can be stuck in the slot 222. The front end of the sheet metal connecting tool 23 can be further coated with hot glue, self-adhesive or pulling glue as a bonding medium, so that the sheet metal connecting tool 23 can be engaged with the sheet metal connection, and further subsequent pulling work can be performed.

[0047] The beneficial effect of the present invention is that after each relative movement of the handle 10 and the pull rod 20, they can be reset by the elastic element 30, so that the action of repairing sheet metal defects can be simplified, and it also has the effects of portability and rapid actuation, and can only repair defects in small areas, which greatly improves the shortcomings of existing repair tools.

[0048] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification 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 still fall within the scope of the technical solution of the present invention.

Claims

1. A sheet metal hand tool that can be quickly pulled out and reset, characterized in that: include: A handle in the shape of a hollow tube, including a cavity and a movable hole arranged at one end; A pull rod, comprising a piston portion, a pull rod head connected to one end of the piston portion, and a sheet metal connection tool that can be replaced and connected to the pull rod head, wherein one end of the piston portion of the pull rod passes through the movable hole of the handle and is disposed in the cavity of the handle, and the piston portion can be moved axially along the cavity of the handle; An elastic element is arranged in the handle and connected to the pull rod. When the pull rod is pulled out relative to the handle, it can be restored to its original position through the elastic element.

2. The sheet metal hand tool capable of rapid pulling and resetting as claimed in claim 1, characterized in that: The piston part is a stepped shaft and gradually shrinks from the rear end to the front end.

3. The sheet metal hand tool capable of rapid pulling and resetting as claimed in claim 2, characterized in that: The piston part comprises a sleeve section which can be used for sleeve-mounting the elastic element.

4. The sheet metal hand tool capable of rapid pulling and resetting as claimed in claim 2, characterized in that: The piston part comprises a connecting section, and the front end of the connecting section is connected to the pull rod head in a screw-engaged manner.

5. The sheet metal hand tool capable of rapid pulling and resetting as claimed in claim 1, characterized in that: The pull rod head is connected to the piston part in a screw-engaging manner.

6. The sheet metal hand tool capable of rapid pulling and resetting as claimed in claim 1, characterized in that: The sheet metal connection tool is detachably connected to the front end of the pull rod head in a screw-on manner, and the sheet metal connection tool is in the shape of a suction cup.

7. The sheet metal hand tool capable of rapid pulling and resetting as claimed in claim 1, characterized in that: The sheet metal connection tool is detachably connected to the front end of the pull rod head, and the sheet metal connection tool is a drawing sheet.

8. The sheet metal hand tool capable of rapid pulling and resetting as claimed in claim 1, characterized in that: The handle comprises a gripping portion in a hollow tubular shape, an end cover connected to the front end of the gripping portion and a tail cover connected to the rear end of the gripping portion respectively, the movable hole is arranged on the end cover, and the cavity is formed in the gripping portion.

9. The sheet metal hand tool capable of rapid pulling and resetting according to any one of claims 1 to 8, characterized in that: The handle is further provided with a lubrication assembly, which covers the piston portion of the pull rod and is used to reduce the friction between the piston portion and the handle.

10. The sheet metal hand tool capable of rapid pulling and resetting according to any one of claims 1 to 8, characterized in that: The elastic element is a compression spring.

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