A single fulcrum sheet metal repair tensioner
By adopting a plastic handle and a universal locking assembly design, the non-orthogonal problem of single-point sheet metal repair tensioners during use is solved, improving repair accuracy and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN YINGFEI ELECTRIC CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-26
AI Technical Summary
In the use of existing single-point sheet metal repair tensioners, the direction of force applied by the handle assembly deviates from the initial adjustment direction, causing the pulled part to be non-orthogonal to the plane to be repaired, which affects the repair accuracy and reduces work efficiency.
The handle and abutment are made of plastic, combined with universal connection and locking components, including pressing and elastic parts. Through the design of sliding holes and insertion holes, reliable locking and flexible sliding of the puller can be achieved, ensuring that the puller is perpendicular to the plane to be repaired and avoiding frequent angle adjustments.
It enables one-time vertical adjustment between the pulled part and the plane to be repaired, improving repair accuracy and work efficiency, and reducing the operator's frequent correction steps.
Smart Images

Figure CN224406092U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of removing localized deformation of metal, specifically to a tensioning device for single-point sheet metal repair. Background Technology
[0002] In the field of automotive sheet metal repair, single-point tensioners are common repair tools that use an adjustable pulling structure to traction and straighten sheet metal parts. Currently, the structure of commonly used single-point sheet metal repair tensioners is as follows: Figure 1 As shown, it typically includes two parts: a handle assembly 10a and a pull assembly. Specifically, the handle assembly 10a has a strip-shaped slide 11a extending through its main body, and multiple positioning grooves 12a are spaced apart along the length of one side of the slide 11a. The pull assembly includes a pull member 13a that can be slidably embedded in the strip-shaped slide 11a and a limiting mechanism 14a provided on the pull assembly. The pull assembly can move in a direction perpendicular to the strip-shaped slide 11a to achieve two state switching: when the limiting mechanism 14a extends into the positioning groove 12a, the pull assembly is locked relative to the handle position; when the limiting mechanism 14a exits the positioning groove 12a, the pull assembly can slide freely within the slide 11a.
[0003] However, in the specific operation process, the operator must first fix the end of the puller 13a to the deformed part of the sheet metal, ensuring that the axis of the puller 13a is approximately perpendicular to the plane to be repaired. Then, the handle assembly 10a is pushed along the slide rail 11a until its end contacting the abutment 15a with the abutment plane. During this process, to achieve tension locking, the handle assembly 10a needs to be further moved in a direction perpendicular to the slide rail 11a, forcing the limiting mechanism 14a to engage with the positioning groove 12a. However, this operation will cause the direction of force applied by the handle assembly 10a to deviate from the initial adjustment direction, disrupting the original perpendicular relationship between the puller 13a and the plane to be repaired, forming a non-orthogonal tension vector. This deviation not only directly affects the repair accuracy but also forces the operator to frequently release the limiting state to recalibrate the angle of the puller assembly, reducing work efficiency. Summary of the Invention
[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a single-point sheet metal repair tensioner.
[0005] A single-point sheet metal repair tensioner, comprising:
[0006] The handle is hinged to the abutment seat;
[0007] A drawing element having a sliding hole, which is slidably fitted onto the handle;
[0008] A locking assembly, mounted on the puller, can lock the puller onto the handle or unlock it so that the puller can slide along its length on the handle.
[0009] The technical solution adopted by one embodiment of this utility model to solve its technical problem is that the handle and / or the abutment seat are made of plastic.
[0010] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the locking assembly includes a pressing member and an elastic member; the handle is provided with a plurality of locking notches spaced apart along its length; the pull member is provided with an insertion hole communicating with the sliding hole; the pressing member is inserted into the insertion hole and connected to the pull member through the elastic member; the pressing member is provided with a locking block extending into the locking notch to lock the pull member on the handle; the pressing member can move in the insertion hole under the action of external force to overcome the elastic tension of the elastic member until the locking block moves out of the locking notch and unlocks.
[0011] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the handle is universally connected to the abutment seat.
[0012] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the abutment seat is provided with a ball head groove, the handle is provided with a ball head, and the ball head is rotatably disposed in the ball head groove.
[0013] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the abutment seat is provided with a strip hole communicating with the ball head groove, and the ball head passes through the strip hole and extends into the ball head groove.
[0014] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the handle includes a handle body and a ball joint, the ball joint includes a ball head and a connecting part, the abutment includes a base and a fixing block, the base is provided with a first groove, the fixing block is detachably installed on the base, and the fixing block is provided with a second groove and the strip hole, the second groove and the first groove surround to form the ball joint groove, and the connecting part passes through the strip hole and is connected to the handle body.
[0015] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the base and the fixing block are fastened together by fasteners.
[0016] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the abutment seat is fitted with an anti-slip sleeve.
[0017] The beneficial effects of this utility model are:
[0018] The pulling component described in this application is slidably mounted on the handle. When using the puller described in this application, the end of the pulling component is first fixedly connected to the deformed part of the sheet metal to ensure that the axis of the pulling component is approximately perpendicular to the plane to be repaired. The locking component is then unlocked and the handle is moved to slide relative to the pulling component. After the abutment seat is rotated to contact the abutment plane, the locking component locks the pulling component onto the handle. The sheet metal can then be pulled using the handle. The position of the handle can be adjusted in one go without frequently releasing the limiting components and the limiting state of the groove or readjusting the pulling angle of the pulling component, thus ensuring work efficiency. Attached Figure Description
[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0020] Figure 1 This is a structural diagram of a commonly used single-point sheet metal repair tensioner on the market.
[0021] Figure 2 This is a schematic diagram of the single-point sheet metal repair tensioner described in this embodiment;
[0022] Figure 3 This is a cross-sectional view of the single-point sheet metal repair tensioner described in this embodiment;
[0023] Figure 4 This is a partial sectional view of the single-point sheet metal repair tensioner described in this embodiment;
[0024] Figure 5 This is a schematic diagram of the structure of the drawing component described in this embodiment;
[0025] Figure 6 The explosion of the single-point sheet metal repair tensioner described in this embodiment. Figure 1 ;
[0026] Figure 7 The explosion of the single-point sheet metal repair tensioner described in this embodiment. Figure 2 . Detailed Implementation
[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0028] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0031] Reference Figure 2-7 This application proposes an embodiment of a single-point sheet metal repair tensioner, comprising: a handle 10 hinged to an abutment seat 20; a pulling member 30 having a sliding hole 31, slidably sleeved on the handle 10 through the sliding hole 31; and a locking assembly 40 mounted on the pulling member 30, which can lock the pulling member 30 on the handle 10 or unlock it so that the pulling member 30 can slide along its length on the handle 10.
[0032] The puller 30 described in this application is slidably disposed on the handle 10. When using the puller described in this application, the end of the puller 30 is first fixedly connected to the deformed part of the sheet metal to ensure that the axis of the puller assembly is approximately perpendicular to the plane to be repaired. The locking assembly 40 is unlocked and the handle 10 is moved to slide relative to the puller 30. After the abutment seat 20 is rotated to make the abutment seat 20 contact the abutment plane, the locking assembly 40 locks the puller 30 on the handle 10. The handle 10 can then be used to pull the sheet metal. The position of the handle 10 can be adjusted at once without frequently releasing the limiting parts and the limiting state of the groove or readjusting the pulling angle of the puller 30, thus ensuring work efficiency.
[0033] It is understood that the puller 30 is connected to the sheet metal part through a connecting structure. This application does not limit the specific connection method between the puller 30 and the sheet metal repair surface. For example, the puller 30 is provided with a hook, and the puller 30 lifts the part pre-set on the sheet metal repair surface through the hook.
[0034] Preferably, the handle 10 and / or the abutment seat 20 are made of plastic. In this embodiment, both the handle 10 and the abutment seat 20 are made of plastic, which can be manufactured using an integrated molding process. This makes production easier, and the plastic material is lighter, making it more convenient to use the tensioner.
[0035] Specifically, the locking assembly 40 includes a pressing member 41 and an elastic member. The handle 10 is provided with a plurality of locking notches 11 spaced apart along its length. The pull member 30 is provided with an insertion hole 32 communicating with the sliding hole 31. The pressing member 41 is inserted into the insertion hole 32 and connected to the pull member 30 through the elastic member. The pressing member 41 is provided with a locking block 42 extending into the locking notch 11. The pressing member 41 can move within the insertion hole 32 under the action of external force to overcome the elastic tension of the elastic member until the locking block 42 moves out of the locking notch 11 and unlocks.
[0036] The elastic element (not shown in the figure) is a spring. The locking block 42 locks the pull member 30 onto the handle 10. When the external force is applied, the pressing member 41 is pressed. The pressing member 41 overcomes the tension of the elastic element, drives the locking block 42 to move and disengage from the locking notch 11. The pull member 30 can then slide on the handle 10. After the external force is removed, the pressing member 41 can return to the position where the locking block 42 moves into the locking notch 11 under the action of the compressed elastic element.
[0037] The pressing member 41 is provided with a release block, and the insertion hole 32 is provided with a release groove that matches the release block. The release block is used to limit the movement of the pressing member 41 in the insertion hole 32 to prevent the pressing member 41 from coming out of the insertion hole 32.
[0038] Preferably, the handle 10 is omnidirectionally connected to the abutment seat 20.
[0039] When the locking assembly 40 is unlocked and the handle 10 is slid relative to the puller 30, the handle 10 is universally connected to the abutment 20 when it is necessary to make the abutment 20 contact the abutment surface, making the abutment 20 more flexible in adjustment and applicable to more sheet metal surfaces.
[0040] Specifically, the handle 10 is provided with a ball head 131, and the abutment seat 20 is provided with a ball head groove. The ball head is located in the ball head groove to realize the universal connection between the handle 10 and the abutment seat 20.
[0041] Preferably, the abutment seat 20 is provided with a strip-shaped hole 222 communicating with the ball head groove, and the ball head 131 extends into the ball head groove after passing through the strip-shaped hole 222. Referring to the accompanying drawings, the handle 10 can move along its length direction within the strip-shaped hole 222 to realize the flipping of the abutment seat 20, and can move along the width direction of the strip-shaped hole 222 to realize the rotation of the abutment seat 20. By designing the strip-shaped hole 222, the hole wall of the strip-shaped hole 222 can limit the swinging or excessive deflection of the handle 10 relative to the abutment seat 20 (i.e., the pulling member 30 swinging or excessive deflection).
[0042] In this embodiment, the handle 10 includes a handle body 12 and a ball joint 13. The ball joint 13 includes a ball head 131 and a connecting portion 132, and the connecting portion 132 is detachably connected to the handle body 12. Specifically, one end of the handle body 12 is provided with a nut, and the connecting portion 132 is provided with a threaded post, which is fastened to the nut.
[0043] Based on the structure of the handle 10 described above, the abutment seat 20 includes a base 21 and a fixing block 22. The upper end of the base 21 is provided with a first groove 211. The fixing block 22 is detachably installed on the base 21, and its lower end is provided with a second groove 221. The second groove 221 and the first groove 211 surround to form the ball head groove. After the connecting part 132 passes through the strip hole 222 and is connected to the handle body 12, the fixing block 22 is then installed on the abutment seat 20 to realize the assembly of the abutment seat 20 and the handle 10.
[0044] In this embodiment, the base 21 and the fixing block 22 are fastened together by fasteners. Specifically, the base 21 is provided with a light hole 212 that passes through it, and the second fixing block 22 is provided with a threaded hole 223 corresponding to the light hole 212. After the fastener passes through the light hole 212, it is tightened into the threaded hole 223 to realize the detachable connection between the base 21 and the fixing block 22.
[0045] The abutment seat 20 is fitted with an anti-slip sleeve 50, which reduces the probability of the abutment seat 20 sliding on the abutment plane when it abuts against the abutment surface; it can also block the light hole and fasteners, improving the appearance.
[0046] To facilitate the correspondence between the light holes and the threaded holes, the fixing block 22 is provided with two positioning blocks 224, and the base 21 is provided with two positioning holes 213. The two positioning blocks 224 are respectively inserted into the positioning holes 213, so that when the fixing block 22 and the base 21 are assembled, the light holes and the threaded holes correspond to each other with the help of the positioning blocks 224 and the positioning holes 213, which facilitates the assembly of the fixing block 22 and the base 21.
[0047] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.
Claims
1. A tensioning device for single-point sheet metal repair, characterized in that, include: The handle (10) is hinged to the abutment (20); The puller (30) has a sliding hole (31) and is slidably sleeved on the handle (10) through the sliding hole (31); A locking assembly (40), mounted on the puller (30), can lock the puller (30) onto the handle (10) or unlock it so that the puller (30) can slide along its length on the handle (10); The locking assembly (40) includes a pressing member (41) and an elastic member. The handle (10) is provided with a plurality of locking notches (11) spaced apart along its length. The pull member (30) is provided with a socket (32) communicating with the sliding hole (31). The pressing member (41) is inserted into the socket (32) and connected to the pull member (30) through the elastic member. The pressing member (41) is provided with a locking block (42) extending into the locking notch (11) to lock the pull member (30) on the handle (10). The pressing member (41) can move in the socket (32) under the action of external force to overcome the elastic tension of the elastic member until the locking block (42) moves out of the locking notch (11) and unlocks.
2. The single fulcrum sheet metal repair tensioner of claim 1, wherein, The handle (10) and / or the abutment (20) are made of plastic.
3. The single fulcrum sheet metal repair tensioner of claim 1, wherein: The handle (10) is universally connected to the abutment (20).
4. The single fulcrum sheet metal repair tensioner of claim 3, wherein, The abutment seat (20) is provided with a ball head groove, and the handle (10) is provided with a ball head (131), which is rotatably located in the ball head groove.
5. The single fulcrum sheet metal repair tensioner of claim 4, wherein, The abutment seat (20) is provided with a strip hole (222) communicating with the ball head groove. The ball head (131) passes through the strip hole (222) and extends into the ball head groove.
6. The single fulcrum sheet metal repair tensioner of claim 5, wherein, The handle (10) includes a handle body (12) and a ball joint (13). The ball joint (13) includes a ball head (131) and a connecting part (132). The abutment (20) includes a base (21) and a fixing block (22). The base (21) is provided with a first groove (211). The fixing block (22) is detachably installed on the base (21). The fixing block (22) is provided with a second groove (221) and the strip hole (222). The second groove (221) and the first groove (211) surround to form the ball head groove. The connecting part (132) passes through the strip hole (222) and connects to the handle body (12).
7. The single fulcrum sheet metal repair tensioner of claim 6, wherein, The base (21) and the fixing block (22) are fastened together by fasteners.
8. The single-point sheet metal repair tensioner according to claim 1, characterized in that, The abutment seat (20) is fitted with an anti-slip sleeve (50).