Chest expander for metal plate repair

Abstract

The utility model discloses a chest expander for metal plate repair, which comprises a support beam, a drawing component, two support leg pieces and an abutting seat, the drawing component is arranged on the support beam and is used for drawing a component which is arranged at a concave part of a metal plate in advance, the top end parts of the support leg pieces are arranged on the support beam, and the abutting seat is arranged on the support beam. The two supporting foot pieces are arranged on the two sides of the drawing assembly respectively, the bottom end of each supporting foot piece is provided with a rod part and a ball head part which are arranged up and down and connected, each abutting seat is provided with a strip hole and a ball head groove which are arranged up and down and communicated, and the two ball head parts are rotationally arranged in the two ball head grooves respectively. The ball head parts can abut against the groove walls of the corresponding ball head grooves so as to limit separation of the corresponding supporting foot pieces and the corresponding abutting bases, the two rod parts are rotationally arranged in the two strip holes in a penetrating mode respectively, and the rod parts can swing in the corresponding strip holes.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet metal repair tools, and in particular to a tensioner for sheet metal repair. Background Technology

[0002] A puller is a tool specifically designed to repair dents in sheet metal (such as those on car bodies). It restores the dented portion of the sheet metal to its original shape through physical pulling. In existing technologies, some pullers include a support beam, two support legs, a pulling assembly, and two abutment seats. The two abutment seats are pivotally connected to the two support legs, and can rotate relative to their corresponding support legs to adapt to contact with the sheet metal surface (flat or curved). However, through market research and numerous tests, the inventors discovered that the adjustability of the abutment seats in these pullers is limited (only adjustable around a pivot axis). Therefore, these pullers have the limitation of being suitable for a limited number of sheet metal surfaces. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a tensioning device for sheet metal repair.

[0004] A sheet metal repair tensioner according to an embodiment of the present invention includes a support beam, a pulling assembly, support legs, and abutment seats. The pulling assembly is disposed on the support beam and is used to pull out components pre-set in the recesses of the sheet metal. Two support legs are provided, with the top end of each support leg disposed on the support beam and the two support legs respectively disposed on both sides of the pulling assembly. The bottom end of each support leg is provided with a rod portion and a ball head that are connected vertically. Two abutment seats are provided, each abutment seat is provided with a vertically connected slot and a ball head groove. The two ball heads are rotatably disposed in the two ball head grooves respectively, and the ball heads can abut against the groove wall of the corresponding ball head groove to restrict the separation of the corresponding support leg and the corresponding abutment seat. The two rod portions are rotatably passed through the two slots respectively, and the rod portions can swing within the corresponding slots.

[0005] A sheet metal repair tensioner according to an embodiment of the present utility model has at least the following beneficial effects:

[0006] The process of restoring the dented part of the sheet metal to its original state by pulling the sheet metal repair tensioner of this application is as follows: 1. Drive the two ball heads to rotate in the two ball head grooves respectively, and the two rods to swing in the two strip holes respectively, so that the two abutment seats are adapted to abut against the sheet metal surface; 2. Drive the pulling assembly to hook the part that is pre-set in the dented part of the sheet metal, so that the dented part of the sheet metal is deformed and restored to its original state under the action of the pulling force provided by the pulling assembly.

[0007] With the above structure, on the one hand, the ball head can rotate in the corresponding ball head groove, and the rod can swing in the corresponding slot. In other words, while the abutment can flip relative to the corresponding support member, it can still rotate relative to the corresponding support member. Therefore, compared with the traditional tensioner (the abutment of the traditional tensioner can only flip relative to the corresponding support member), the tensioner for sheet metal repair of this application has a greater degree of adjustability and is applicable to more sheet metal surfaces. On the other hand, in the process of driving the pulling component to hook the component pre-set in the sheet metal recess, the hole wall of the slot can abut with the corresponding rod to limit the swing or excessive sway of the support member relative to the abutment (i.e., the swing or excessive sway of the pulling component), thereby ensuring the effect of deformation recovery of the sheet metal recess.

[0008] According to some embodiments of the present invention, the abutment includes a seat body and a mounting block. The top side of the seat body is provided with a groove. The mounting block is detachably disposed on the top side of the seat body. The mounting block is provided with the vertically connected strip hole and the connecting hole. The connecting hole and the groove together form the ball head groove. The ball head can abut against the hole wall of the corresponding connecting hole to restrict the separation of the corresponding support member and the corresponding abutment.

[0009] According to some embodiments of the present invention, the bottom of the groove is provided with an abutment block, and the two abutment blocks respectively abut against the bottom of the two ball heads.

[0010] According to some embodiments of the present invention, the base body is provided with a first hole, the mounting block is provided with a second hole, and fasteners are inserted through the first hole and the second hole, wherein the fasteners are rotatable to adjust the degree to which the mounting block presses the ball head against the abutting block through the hole wall of the communicating hole.

[0011] According to some embodiments of the present invention, the first hole is a through hole structure, the second hole is a blind hole structure, the base body is fitted with an anti-slip sleeve, the anti-slip sleeve covers the end of the first hole that communicates with the outside, and the base body can abut against the sheet metal surface through the anti-slip sleeve.

[0012] According to some embodiments of the present invention, one of the top side of the base body and the bottom side of the mounting block is provided with a positioning block, and the other is provided with a positioning hole. The positioning block is inserted into the positioning hole so that the first hole and the second hole are correspondingly set.

[0013] According to some embodiments of the present invention, the top side of the base body is provided with a positioning groove that cooperates with the mounting block, the bottom of the positioning groove is provided with the groove, and the mounting block is detachably inserted into the positioning groove so that the groove and the communicating hole correspond.

[0014] According to some embodiments of the present invention, the abutment seat and / or the support leg are integrally formed with a material-saving skeleton.

[0015] According to some embodiments of the present invention, a connector is also included, the connector having the rod portion and the ball head, the bottom end of the support member having a third hole, and the connector being threaded to the third hole through the rod portion.

[0016] According to some embodiments of the present invention, the support beam is provided with at least three locking notches spaced apart along its length. The top end of the support member is provided with a fourth hole, a fifth hole, and an opening connecting the fourth hole and the fifth hole. The support member is slidably fitted onto the support beam through the fourth hole. The fifth hole is provided with a pressing member and an elastic member. The pressing member is provided with an avoidance notch. One of the holes of the fifth hole and the pressing member is provided with a limiting groove, and the other is provided with a limiting block slidably disposed in the limiting groove. The elastic member abuts against the hole wall of the fifth hole and the pressing member. The elastic member can drive the pressing member to extend part of the fifth hole. The pressing member is inserted into a corresponding locking notch through the opening to restrict the sliding of the support member along the length of the support beam. Pressing the part of the pressing member extending out of the fifth hole can compress the elastic member and move the avoidance notch to the opening so that the support member can slide along the length of the support beam. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is a structural diagram of an embodiment of the sheet metal repair tensioner of this utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of the sheet metal repair tensioner shown in the image;

[0020] Figure 3 for Figure 2 An enlarged view of part A shown in the diagram;

[0021] Figure 4 for Figure 2 An enlarged view of part B shown in the diagram;

[0022] Figure 5 for Figure 1 The structural diagram of the connecting leg and the abutment shown in the figure;

[0023] Figure 6 for Figure 5A partial exploded view of a leg and abutment shown in the figure;

[0024] Figure 7 for Figure 6 The structural diagram of the mounting block shown;

[0025] Figure 8 for Figure 6 The diagram shows the structure of the base body.

[0026] Figure label:

[0027] Support beam 100, locking notch 110;

[0028] Pull-out assembly 200, hook and hanger 210;

[0029] Support leg 300, third hole 310, fourth hole 320, fifth hole 330, release groove 331, opening 340;

[0030] Abutment 400, base body 410, groove 411, first hole 412, positioning hole 413, positioning groove 414, mounting block 420, strip hole 421, connecting hole 422, second hole 423, positioning block 424;

[0031] Block 500;

[0032] Fastener 600;

[0033] Anti-slip sleeve 700;

[0034] Connector 810, rod 811, ball head 812, pressing part 820, clearance notch 821, release block 822;

[0035] Ball head groove S1, material-saving skeleton S2. Detailed Implementation

[0036] 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.

[0037] In the description of this utility model, the use of terms such as first, second, third, fourth, and fifth is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0038] 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.

[0039] 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.

[0040] Reference Figures 1 to 8 This utility model provides a sheet metal repair tensioner, which includes a support beam 100, a pulling assembly 200, a support leg 300, and an abutment seat 400.

[0041] A pulling assembly 200 is mounted on a support beam 100. The pulling assembly 200 is used to pull components pre-set in sheet metal recesses. Two support legs 300 are provided, with their top ends mounted on the support beam 100 and positioned on opposite sides of the pulling assembly 200. The bottom end of each support leg 300 has a vertically connected rod portion 811 and a ball head 812. Two abutment seats 400 are provided, each with a vertically connected slot 421 and a ball head groove S1. The two ball heads 812 are rotatably mounted in the two ball head grooves S1, and can abut against the groove wall of the corresponding ball head groove S1 to prevent the separation of the corresponding support leg 300 and the corresponding abutment seat 400. The two rod portions 811 are rotatably inserted through the two slots 421 and can swing within the corresponding slots 421. The pulling assembly 200 is prior art and will not be described further here.

[0042] Understandably, the pull assembly 200 is provided with a hook 210, which is used to hook and lift the part that is pre-set in the sheet metal recess.

[0043] The process of restoring the dented part of the sheet metal to its original state by pulling the sheet metal repair tensioner of this application is as follows: 1. Drive the two ball heads 812 to rotate in the two ball head grooves S1 respectively, and drive the two rods 811 to swing in the two strip holes 421 respectively, so that the two abutment seats 400 are adapted to abut against the sheet metal surface; 2. Drive the pulling assembly 200 to hook the part that is pre-set in the dented part of the sheet metal, so that the dented part of the sheet metal is deformed and restored to its original state under the action of the pulling force provided by the pulling assembly 200.

[0044] With the above structure, on the one hand, the ball head 812 can rotate in the corresponding ball head groove S1, and the rod 811 can swing in the corresponding slot 421. In other words, while the abutment 400 can flip relative to the corresponding support 300, it can still rotate relative to the corresponding support 300. Therefore, compared with the conventional puller (the abutment of the conventional puller can only flip relative to the support), the puller for sheet metal repair of this application has a greater degree of adjustability of the abutment 400 and is applicable to more sheet metal surfaces. On the other hand, in the process of driving the pulling assembly 200 to hook the part pre-set in the sheet metal recess, the hole wall of the slot 421 can abut against the corresponding rod 811, so as to limit the swing or excessive sway of the support 300 relative to the abutment 400 (i.e., the swing or excessive sway of the pulling assembly 200), thereby ensuring the effect of deformation recovery of the sheet metal recess.

[0045] The abutment 400 includes a seat body 410 and a mounting block 420.

[0046] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 The top side of the base body 100 is provided with a groove 411, and the mounting block 420 is detachably provided on the top side of the base body 410. The mounting block 420 is provided with the above-mentioned strip hole 421 and connecting hole 422 arranged vertically. The connecting hole 422 and the groove 411 together form the above-mentioned ball head groove S1. The ball head 812 can abut against the hole wall of the corresponding connecting hole 422 to restrict the separation of the corresponding support leg 300 and the corresponding abutment seat 400.

[0047] Understandably, the seat body 410 is used to abut against the sheet metal surface.

[0048] With the above structure, the seat body 410 and the mounting block 420 can be disassembled and separated, which can reduce the space occupied by the overall tensioner and thus reduce the transportation cost of the overall tensioner.

[0049] In this embodiment, refer to Figure 4The bottom of the groove 411 is provided with abutment blocks 500, and the two abutment blocks 500 abut against the bottom of the two ball heads 812 respectively. The abutment blocks 500 are made of elastic material.

[0050] With the above structure, the abutment block 500 abuts against the lower part of the corresponding ball head 812. The abutment block 500 can provide a certain resistance when the corresponding ball head 812 moves, so as to reduce the situation where the abutment seat 400 flips and tilts against the support leg 300 due to being too loose when moving the tensioner.

[0051] Mounting block 420 is detachably mounted on the top side of base body 410, as detailed in the following document. Figure 4 , Figure 6 as well as Figure 8 The top side of the base body 410 is provided with a positioning groove 414 that cooperates with the mounting block 420. The bottom of the positioning groove 414 is provided with the aforementioned groove 411. The mounting block 420 is detachably inserted into the positioning groove 414 so that the groove 411 and the connecting hole 422 correspond.

[0052] With the above structure, when the mounting block 420 is inserted into the positioning groove 414, the groove 411 can correspond to the connecting hole 422 to jointly form the ball head groove S1.

[0053] In this embodiment, refer to Figure 4 and Figure 6 The bottom of the positioning groove 414 is provided with a first hole 412, which is a countersunk through hole. The bottom side of the mounting block 420 is provided with a second hole 423, which is a threaded blind hole. Fasteners 600, which are bolts, are inserted through the first hole 412 and the second hole 423. The fasteners 600 are rotatable to adjust the degree to which the mounting block 420 presses the ball head 812 against the abutment block 500 through the wall of the connecting hole 422. There are four of each of the first hole 412, the second hole 423, and the fasteners 600.

[0054] With the above structure, on the one hand, the seat body 410 and the mounting block 420 can be detachably connected; on the other hand, the degree to which the mounting block 420 presses the ball head 812 against the abutment block 500 through the hole wall of the connecting hole 422 can be adjusted, that is, the resistance provided by the abutment block 500 when the corresponding ball head 812 moves can be adjusted to meet the different requirements of different users.

[0055] In this embodiment, refer to Figure 2 , Figure 4 , Figure 5 as well as Figure 6 The base body 410 is fitted with an anti-slip sleeve 700, which covers the end of the first hole 412 that communicates with the outside. The base body 410 can abut against the sheet metal surface through the anti-slip sleeve 700.

[0056] It is understandable that the other end of the first hole 412, which is a countersunk through hole, corresponds to the second hole 423, which is a threaded blind hole, and one end of the hole needs to be connected to the outside so that the fastener 600 can be installed.

[0057] With the above structure, on the one hand, the seat body 410 can abut against the sheet metal surface through the anti-slip sleeve 700, so as to reduce the probability of the seat body 410 sliding on the sheet metal surface during the process of driving the pulling component 200 to hook the component pre-set in the recess of the sheet metal; on the other hand, the first hole 412 is a countersunk through hole and the second hole 423 is a threaded blind hole. The anti-slip sleeve 700 covers the end of the first hole 412 that communicates with the outside, that is, the fastener 600 is hidden, so as to prevent the user from observing the fastener 600, thereby improving the overall appearance of the puller.

[0058] To facilitate the positioning and correspondence of the first hole 412 and the second hole 423, refer to Figure 6 and Figure 8 The mounting block 420 has two positioning blocks 424 on its bottom side, and the bottom of the positioning groove 414 has two positioning holes 413. The two positioning blocks 424 are respectively inserted into the positioning holes 413 so that the four first holes 412 and the four second holes 423 are set in a one-to-one correspondence.

[0059] In some embodiments, the positioning block 424 is disposed at the bottom of the positioning groove 414, and the positioning hole 413 is disposed on the bottom side of the mounting block 420.

[0060] In some embodiments, a positioning block 424 is provided on the bottom side of the mounting block 420, and a positioning hole 413 is provided at the bottom of the positioning groove 414.

[0061] In order to reduce the weight of the tensioner while ensuring its structural strength, refer to... Figure 1 The base body 410 and the support leg 300 are both integrally formed with a material-saving frame S2.

[0062] In some embodiments, only the abutment seat 400 is integrally formed with a material-saving frame S2.

[0063] The bottom end of the support leg 300 is provided with a connecting rod 811 and a ball head 812 arranged vertically. For details, refer to... Figure 2 and Figure 6 It also includes a connector 810, which has the aforementioned rod portion 811 and the aforementioned ball head portion 812. The bottom end of the support member 300 has a third hole 310, and the connector 810 is threadedly connected to the third hole 310 through the rod portion 811. The connector 810 is a ball head screw.

[0064] With the above structure, the user can drive the connector 810 to rotate relative to the support leg 300 according to the actual scenario, so as to adjust the distance between the support leg 300 and the abutment seat 400.

[0065] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 5 The support beam 100 has multiple locking notches 110 spaced apart along its length. The top of the support leg 300 has a fourth hole 320, a fifth hole 330, and an opening 340 connecting the fourth hole 320 and the fifth hole 330. The support leg 300 is slidably fitted onto the support beam 100 through the fourth hole 320. The fifth hole 330 has a pressing member 820 and an elastic member, the elastic member being a spring. The pressing member 820 has an clearance notch 821. The hole wall of the fifth hole 330 has a limiting groove 331. The pressing member 820 is slidably disposed in the limiting groove 331. The limiting block 822 of 1 has an elastic element abutting between the hole wall of the fifth hole 330 and the pressing element 820. The elastic element can drive the pressing element 820 to extend out of the fifth hole 330. The pressing element 820 is inserted into a corresponding locking notch 110 through the opening 340 to restrict the sliding of the foot member 300 along the length direction of the support beam 100. Pressing the part of the pressing element 820 that extends out of the fifth hole 330 can compress the elastic element and move the clearance notch 821 to the opening 340 so that the foot member 300 can slide along the length direction of the support beam 100.

[0066] Understandably, the release block 822 is slidably disposed in the release groove 331, and the groove wall of the release groove 331 can abut against the release block 822. On the one hand, it can prevent the elastic element from driving the pressing element 820 to completely disengage from the fifth hole 330 to the outside; on the other hand, it can limit the distance that the pressing element 820 retracts due to excessive retraction, so as to avoid the problem of damage to the elastic element caused by excessive retraction of the pressing element 820.

[0067] It is understood that multiple locking notches 110 mean at least three locking notches 110; the pressing part 820 extending out of the fifth hole 330 is located on the outside.

[0068] With the above structure, when the user presses the corresponding pressing member 820 and drives the corresponding support member 300 to slide along the length direction of the support beam 100, so that the two support members 300 have a suitable distance, the user can release the corresponding pressing member 820, so that the corresponding elastic member returns to its original state and drives the corresponding pressing member 820 to partially extend out of the fifth hole 330 again, and so that the pressing member 820 is inserted into the corresponding locking notch 110 through the opening 340 to restrict the sliding of the support member 300 along the length direction of the support beam 100 (that is, locking the support member 300 to the support beam 100).

[0069] 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 tensioner for sheet metal repair, characterized by: The bracket beam (100) is provided with a pulling assembly (200) for pulling the parts pre-provided in the recess of the sheet metal, and two supporting members (300) provided at the top end of the bracket beam (100) and arranged on both sides of the pulling assembly (200), wherein the bottom end of each supporting member (300) is provided with a connecting rod portion (811) and a ball head portion (812) arranged in an up-down manner.

2. The sheet metal repairing pulling device according to claim 1, wherein the abutting seat (400) comprises a seat body (410) provided with a groove (411) on the top side, and a mounting block (420) detachably arranged on the top side of the seat body (410) and provided with the strip hole (421) and a communication hole (422) arranged in an up-down manner in communication, and the communication hole (422) and the groove (411) jointly form the ball head groove (S1), and the ball head portion (812) can abut against the hole wall of the corresponding communication hole (422) to limit the separation of the corresponding supporting member (300) and the corresponding abutting seat (400).

3. The sheet metal repairing pulling device according to claim 2, wherein the groove (411) is provided with an abutting block (500) at the groove bottom, and the two abutting blocks (500) are arranged below the two ball head portions (812) respectively.

4. The sheet metal repairing pulling device according to claim 3, wherein the seat body (410) is provided with a first hole (412), the mounting block (420) is provided with a second hole (423), and the first hole (412) and the second hole (423) are provided with a fastener (600) in penetration, wherein the fastener (600) can be rotated to adjust the degree of pressing the ball head portion (812) against the abutting block (500) by the hole wall of the communication hole (422).

5. The sheet metal repairing pulling device according to claim 4, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The first hole (412) is in a through-hole structure, the second hole (423) is in a blind hole structure, the seat body (410) is sleeved with an anti-skid sleeve (700), the anti-skid sleeve (700) blocks an end aperture of the first hole (412) in communication with the outside, and the seat body (410) can abut against a sheet metal surface through the anti-skid sleeve (700).

6. The tension device for sheet metal repair according to claim 4, characterized in that: One of the top side of the seat body (410) and the bottom side of the mounting block (420) is provided with a positioning block (424), and the other is provided with a positioning hole (413), the positioning block (424) is inserted into the positioning hole (413), so that the first hole (412) and the second hole (423) are correspondingly arranged.

7. The tension device for sheet metal repair according to claim 2, characterized in that: The top side of the seat body (410) is provided with a positioning groove (414) matched with the mounting block (420), the groove bottom of the positioning groove (414) is provided with the groove (411), and the mounting block (420) is detachably inserted into the positioning groove (414), so that the groove (411) and the communication hole (422) are corresponded.

8. The tension device for sheet metal repair according to claim 1, characterized in that: The abutting seat (400) and / or the supporting leg member (300) is integrally formed with a material-saving framework (S2).

9. The tension device for sheet metal repair according to claim 1, characterized in that: It further comprises a connecting member (810) provided with the rod portion (811) and the ball head portion (812), the bottom end portion of the supporting leg member (300) is provided with a third hole (310), and the connecting member (810) is threadedly connected to the third hole (310) through the rod portion (811).

10. The tension device for sheet metal repair according to claim 1, characterized in that: The support beam (100) is provided with at least three locking notches (110) arranged at intervals along the length direction thereof, the top end of the support leg member (300) is provided with a fourth hole (320), a fifth hole (330) and an opening (340) communicating the fourth hole (320) and the fifth hole (330), the support leg member (300) is slidably sleeved on the support beam (100) through the fourth hole (320), the fifth hole (330) is provided with a pressing member (820) and an elastic member, the pressing member (820) is provided with an avoiding notch (821), one of the hole wall of the fifth hole (330) and the pressing member (820) is provided with a limiting slot (331), and the other is provided with a limiting block (822) slidably arranged in the limiting slot (331), the elastic member abuts between the hole wall of the fifth hole (330) and the pressing member (820), the elastic member can drive the pressing member (820) to partially extend out of the fifth hole (330), the pressing member (820) is inserted into a corresponding locking notch (110) through the opening (340) to limit the sliding of the support leg member (300) along the length direction of the support beam (100), wherein, Pressing the part of the pressing member (820) extending out of the fifth hole (330) can make the elastic member compressed, move the avoiding notch (821) to the opening (340) to make the support leg member (300) able to slide along the length direction of the support beam (100).

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