CN214492806U - Connecting device for improving fatigue resistance of towing hook - Google Patents
Connecting device for improving fatigue resistance of towing hook Download PDFInfo
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- CN214492806U CN214492806U CN202120527123.6U CN202120527123U CN214492806U CN 214492806 U CN214492806 U CN 214492806U CN 202120527123 U CN202120527123 U CN 202120527123U CN 214492806 U CN214492806 U CN 214492806U
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- connecting plate
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Abstract
The utility model belongs to the technical field of the automobile-manufacturing, specifically disclose a connecting device that promotes towing pintle fatigue resistance, including the energy-absorbing box, weld in the installation backplate of energy-absorbing box tip and weld in the connecting plate of installation backplate and energy-absorbing box junction, the connecting plate includes closely the back looks welded flange edge of laminating with the installation backplate to and bend the wall of bending that forms with flange edge an organic whole, bend the wall card and locate the energy-absorbing box and weld with the energy-absorbing box. The connecting device with the structural design can be matched with the welding between the energy absorption box and the mounting backboard, the connecting strength between the energy absorption box and the mounting backboard is further improved, then the energy absorption box and the mounting backboard are connected more stably and reliably, and the reliability between the energy absorption box and the mounting backboard is effectively improved.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field especially relates to a connecting device that promotes towing pintle fatigue resistance.
Background
In the modern society, along with the improvement of economy and living standard, people increasingly adopt the automobile as a tool for riding instead of walk on a journey, and meanwhile, the safety problem of the automobile is more and more valued by people.
At present, as vehicles are more and road conditions are more and more complex, accidents such as collision and the like are easy to happen in the process of driving an automobile, wherein front collision or rear collision (rear-end collision) under low-speed driving is more. In the prior art, in order to effectively improve the protective effect of the front anti-collision beam and the rear anti-collision beam under the low-speed collision of the automobile, energy absorption boxes are generally arranged between the front anti-collision beam and the front longitudinal beam, and between the rear anti-collision beam and the rear longitudinal beam, so as to fully absorb the collision energy of the automobile. Specifically, for the case that the automobile is subjected to front collision during low-speed running, one end of the energy absorption box is fixedly provided with a front mounting plate connected with the front anti-collision beam, the other end of the energy absorption box is fixedly provided with a rear mounting plate connected with the front longitudinal beam, and the side wall of the energy absorption box is provided with a crumpling groove.
Conventional anti-collision beam assemblies generally include a tow hook structure, and therefore, the fatigue strength test of tow hooks proposed by regulations or enterprises needs to be met, and the tow hook fatigue test usually requires 3000-10,000 cycles. Under the condition that the requirement on fatigue strength is high, the fixing mode that the mounting back plate at the end part of the energy absorption box is directly welded in the prior art is adopted, the requirement can not be obviously met, and due to the fact that a necessary connecting plate is lacked between the energy absorption box and the mounting back plate, in addition, when a vehicle is in actual collision, impact force is large and the collision direction is uncertain, fatigue failure phenomena such as welding failure and the like are easily caused between the mounting back plate and the energy absorption box, and then the mounting back plate and the energy absorption box are loosened, and the design requirement can not be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a promote connecting device of towing pintle fatigue resistance, this connecting device pass through the setting of connecting plate, effectively promote the reliability between energy-absorbing box and the installation backplate, make then be connected between energy-absorbing box and the installation backplate more reliable and more stable.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the connecting device comprises an energy absorption box, an installation backboard welded at the end part of the energy absorption box and a connecting plate welded at the joint of the installation backboard and the energy absorption box, wherein the connecting plate comprises a plate edge welded after the installation backboard is tightly attached and a bending wall formed by integrally bending the plate edge, and the bending wall is clamped and arranged on the energy absorption box and welded with the energy absorption box.
The bending wall comprises an inclined wall and a horizontal wall, the inclined wall is formed by integrally bending the plate edges, the horizontal wall extends out of the edges of the inclined wall, and the horizontal wall and the outer side wall of the energy absorption box are welded into a whole after being attached.
Wherein, the opening of connecting plate is the U font setting.
The plate edge of the connecting plate is provided with a through hole in a penetrating mode, and the through hole is coaxial with the round hole formed in the mounting backboard.
The inclined wall cover is arranged on a welding seam between the energy absorption box and the mounting backboard.
The two connecting plates are respectively welded to the upper side and the lower side of the joint of the energy absorption box and the mounting backboard.
The connecting plate is arranged in an L shape and welded above the joint of the energy absorption box and the mounting backboard.
Wherein, the connecting plate adopts integrative stamping forming of panel beating.
The bending pressure of the connecting plate is set to be 250-600 MPa, and the plate thickness of the connecting plate is set to be 1.0-3.0 mm.
The beneficial effects of the utility model reside in that: the utility model discloses a promote connecting device of towing pintle fatigue resistance, including the energy-absorbing box, weld in the installation backplate of energy-absorbing box tip and weld in the connecting plate of installation backplate and energy-absorbing box junction, the connecting plate includes closely the back welded flange limit of laminating mutually with the installation backplate to and bend the wall of bending that forms with flange limit an organic whole, bend the wall card and locate the energy-absorbing box and weld with the energy-absorbing box. The connecting device with the structural design can be matched with the welding between the energy absorption box and the mounting backboard, the connecting strength between the energy absorption box and the mounting backboard is further improved, then the energy absorption box and the mounting backboard are connected more stably and reliably, and the reliability between the energy absorption box and the mounting backboard is effectively improved.
Drawings
Fig. 1 is an axonometric view of the connection device of the utility model for improving the fatigue resistance of a tow hook.
Fig. 2 is an isometric view of the web of fig. 1.
In the figure:
1. an energy absorption box;
2. mounting a back plate;
3. a connecting plate; 31. plate edges; 32. an inclined wall; 33. a horizontal wall.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Conventional anti-collision beam assemblies generally include a tow hook structure, and therefore, the fatigue strength test of tow hooks proposed by regulations or enterprises needs to be met, and the tow hook fatigue test usually requires 3000-10,000 cycles. Under the condition that the requirement on fatigue strength is high, the fixing mode that the mounting back plate at the end part of the energy absorption box is directly welded in the prior art is adopted, the requirement can not be obviously met, and due to the fact that a necessary connecting plate is lacked between the energy absorption box and the mounting back plate, in addition, when a vehicle is in actual collision, impact force is large and the collision direction is uncertain, fatigue failure phenomena such as welding failure and the like are easily caused between the mounting back plate and the energy absorption box, and then the mounting back plate and the energy absorption box are loosened, and the design requirement can not be met.
In view of the above problems, the present embodiment provides a connecting device for improving fatigue resistance of a towing hook, and fig. 1 is an axonometric view of the connecting device for improving fatigue resistance of a towing hook according to the present invention; fig. 2 is an isometric view of the connection plate 3 of fig. 1. With reference to fig. 1 to 2, the present embodiment provides a connecting device for improving fatigue resistance of a towing hook, including an energy absorption box 1, a mounting backboard 2, and a connecting plate 3, wherein the mounting backboard 2 is welded at an end of the energy absorption box 1, the connecting plate 3 is welded at a joint of the mounting backboard 2 and the energy absorption box 1, and the connecting device with the structural design is provided, after the mounting backboard 2 is welded with the energy absorption box 1, the connecting plate 3 is welded at a welding position of the mounting backboard 2 and the energy absorption box 1, so as to further improve the connection strength between the mounting backboard 2 and the energy absorption box 1, and avoid fatigue failure at the joint of the mounting backboard 2 and the energy absorption box 1.
Furthermore, in the present embodiment, in order to facilitate the installation of the connection plate 3, preferably, the connection plate 3 in this embodiment is integrally formed by stamping a metal plate, the connecting member 3 after stamping is formed by combining a bent wall and a plate edge 31, when in installation, the plate edge 31 is tightly attached to the installation backboard 2, and the bent wall is clamped in the energy absorption box 1 and welded to the energy absorption box 1. Designed in this way, the connection strength between the mounting backboard 2 and the energy absorption box 1 can be further improved.
More specifically, the bent wall in this embodiment includes an inclined wall 32 integrally bent along the plate edge 31, and a horizontal wall 33 extending from the edge of the inclined wall 32, the inclined wall 32 of the mounted connection plate 3 can avoid a weld between the mounting backplate 2 and the energy-absorbing box 1, the weld is covered under the inclined wall 32, and the horizontal wall 33 is welded to the outer side wall of the energy-absorbing box 1. With this structural design, can make the flange edge 31 and the horizontal wall 33 of connecting plate 3 closely laminate with installation backplate 2 and energy-absorbing box 1 respectively, simultaneously, also further setting through sloping wall 32 forms certain support and reinforcement between installation backplate 2 and energy-absorbing box 1, make then that energy-absorbing box 1 is connected with installation backplate 2 more reliable and stable.
Further specifically, the connecting plate 3 adopting the above structural design is provided with a U-shaped opening for facilitating the matching with the energy absorption box 1, before the connecting member 3 is respectively welded with the energy absorption box 1 and the mounting backboard 2, the mounting backboard 2 and the energy absorption box 1 can be welded firstly, then the connecting plate 3 is clamped on the energy absorption box 1 through the U-shaped opening, then the plate edge 31 of the connecting plate 3 is welded with the mounting backboard 2, and the horizontal wall 33 is welded with the energy absorption box 1. Therefore, the connection between the energy absorption box 1 and the mounting backboard 2 is more stable and reliable.
As a further preference, in order to facilitate installation, the two connecting plates 3 may be set as two according to design requirements, and the two connecting plates 3 are respectively welded to the upper side and the lower side of the joint of the energy-absorbing box 1 and the installation backboard 2, so as to completely shield the joint of the energy-absorbing box 1 and the installation backboard 2, that is, completely cover the joint of the energy-absorbing box 1 and the installation backboard 2, further improve the connection strength between the energy-absorbing box 1 and the installation backboard 2, and increase the connection reliability between the energy-absorbing box 1 and the installation backboard 2.
As an alternative to the above solution, the connecting plate 3 in this embodiment may also be two connecting plates 3 with L-shaped openings, and during installation, the two connecting plates 3 with L-shaped openings are respectively turned upside down and then welded to the joint of the energy-absorbing box 1 and the installation backboard 2, so as to increase the connection strength of the joint of the energy-absorbing box 1 and the installation backboard 2.
Furthermore, in order to make the plate edge 31 of the connecting plate 3 closely fit with the mounting backplate 2 in this embodiment, so as to form a whole, preferably, a plurality of through holes are provided in the plate edge 31 of the connecting plate 3 in this embodiment in a penetrating manner, the through holes are respectively provided in a penetrating manner coaxially with the round holes on the mounting backplate 2, and then when the mounting backplate 2 is fixedly mounted on an external member, the bolts can be directly penetrated through the through holes corresponding to the round holes on the mounting backplate 2, and then when the mounting backplate 2 is fastened on the external member, the connecting plate 3 is further fastened. In this embodiment, because the plate edge 31 of the connecting plate 3 is attached to the mounting backplate 2, the strength of the mounting backplate 2 can be further increased, and the mounting backplate 2 is prevented from being deformed due to the fact that the thickness of the mounting backplate 2 is small or the energy-absorbing box 1 is transversely stressed, so that the mounting backplate 2 is more stable and reliable to fix with an external member.
In addition, in order to satisfy the structural strength of the above-mentioned connecting device, preferably, the connecting plate 3 in the present embodiment is integrally formed by a metal plate, the bending pressure of the connecting plate 3 is set to 250 to 600Mpa, preferably 500Mpa, and the plate thickness of the connecting plate 3 is set to 1.0 to 3.0mm, preferably 2.5 mm.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a promote connecting device of towing pintle fatigue resistance, its characterized in that, include energy-absorbing box (1), weld in installation backplate (2) of energy-absorbing box (1) tip and weld in installation backplate (2) with connecting plate (3) of energy-absorbing box (1) junction, connecting plate (3) include with installation backplate (2) closely laminate back looks welded flange (31), and with flange (31) an organic whole bend the wall that forms, bend the wall card locate energy-absorbing box (1) and with energy-absorbing box (1) welding.
2. The connecting device for improving the fatigue resistance of the towing hook according to the claim 1, wherein the bending wall comprises an inclined wall (32) which is integrally bent along the plate edge (31), and a horizontal wall (33) which extends out of the edge of the inclined wall (32), and the horizontal wall (33) is welded integrally with the outer side wall of the energy absorption box (1) after being attached.
3. A connecting device for improving the fatigue resistance of a tow hook according to claim 1, characterized in that the opening of the connecting plate (3) is U-shaped.
4. A connecting device for improving the fatigue resistance of a towing hook according to claim 1, wherein a through hole is arranged through the plate edge (31) of the connecting plate (3), and the through hole is coaxially arranged with a round hole arranged on the mounting backboard (2).
5. A connecting device for improving the fatigue resistance of a towing hook according to claim 2, wherein the inclined wall (32) covers the weld of the energy absorption box (1) and the mounting backboard (2).
6. The connecting device for improving the fatigue resistance of the towing hook according to the claim 2, wherein the two connecting plates (3) are arranged in two, and the two connecting plates (3) are welded on the upper and lower sides of the joint of the energy absorption box (1) and the mounting backboard (2) respectively.
7. The connecting device for improving the fatigue resistance of the towing hook according to the claim 1, wherein the connecting plate (3) is L-shaped, and the connecting plate (3) is welded above the joint of the energy absorption box (1) and the mounting backboard (2).
8. The connecting device for improving the fatigue resistance of the towing hook according to the claim 1 is characterized in that the connecting plate (3) is integrally formed by stamping and forming a metal plate.
9. The connecting device for improving the fatigue resistance of the towing hook according to claim 1, wherein the bending pressure of the connecting plate (3) is set to 250-600 Mpa, and the plate thickness of the connecting plate (3) is set to 1.0-3.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527123.6U CN214492806U (en) | 2021-03-12 | 2021-03-12 | Connecting device for improving fatigue resistance of towing hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527123.6U CN214492806U (en) | 2021-03-12 | 2021-03-12 | Connecting device for improving fatigue resistance of towing hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214492806U true CN214492806U (en) | 2021-10-26 |
Family
ID=78198277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120527123.6U Active CN214492806U (en) | 2021-03-12 | 2021-03-12 | Connecting device for improving fatigue resistance of towing hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214492806U (en) |
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2021
- 2021-03-12 CN CN202120527123.6U patent/CN214492806U/en active Active
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