CN113119668B

CN113119668B - Structure is opened to support hook apron

Info

Publication number: CN113119668B
Application number: CN202110253895.XA
Authority: CN
Inventors: 崔佳伟; 林祥辉; 马玲玲; 林泮
Original assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2022-06-24
Anticipated expiration: 2041-03-09
Also published as: CN113119668A

Abstract

The invention discloses a supporting hook cover plate opening structure which comprises a safety rod, a supporting hook cover plate arranged on the safety rod and a rotary buckle assembly used for clamping and fixing the supporting hook cover plate on the safety rod, wherein a notch is formed in the supporting hook cover plate, and the rotary buckle assembly comprises a rotating part capable of axially rotating along the rotary buckle assembly and a spring used for providing restoring force for the rotating part. The invention changes the opening mode of the hook supporting cover plate in the prior art from a rotary mode to a real pressing type opening structure, avoids the problem of interference with peripheral local parts when the hook supporting cover plate is opened, and has simple and convenient operation.

Description

Structure is opened to support hook apron

Technical Field

The invention relates to the technical field of automobile parts, in particular to a hook supporting cover plate opening structure.

Background

Because the needs of the whole pleasing to the eye effect of car, in order to hide the draw hook hole, guarantee the normal use of draw hook and avoid draw gear and bumper interference simultaneously, need install a support hook apron on the bumper. The function of the supporting hook cover plate is to open the supporting hook cover plate and screw the supporting hook to support the vehicle when the vehicle needs to be supported. In the prior art, the opening modes of the hook supporting cover plate are two. One is a prying type supporting hook cover plate adopting an auxiliary tool, and the prying type supporting hook cover plate needs the auxiliary tool (such as a straight screwdriver and the like) for opening, so that the prying type supporting hook cover plate has the problem of inconvenience and is gradually eliminated; the second is a rotary open type with a rotary shaft. The rotary opening type supporting hook cover plate is a mainstream scheme at present, but due to the limitation of the shape of a bumper, when the rotary opening type supporting hook cover plate of a part of vehicle types is opened, local interference with peripheral parts can exist, and the opening difficulty is caused. And when the rotary opening type supporting hook cover plate is designed, the opening force is not easy to simulate and control through an early design stage, and after parts are formed, a mold is modified to adjust the opening force, so that extra cost is caused. The opening force also decreases significantly as the material ages and opens multiple times.

Disclosure of Invention

In view of the above, the present invention provides an opening structure for a hook cover plate, which can effectively solve the problem of interference between the hook cover plate and peripheral components when the hook cover plate is opened, and can accurately control the opening force, reduce the later debugging time and cost, and is convenient to operate.

The invention provides a hook cover plate opening structure, which comprises a safety rod, a hook cover plate arranged on the safety rod, and a rotary buckle assembly used for clamping the hook cover plate on the safety rod, wherein the rotary buckle assembly also comprises a fixed pipe and a driving pipe positioned in the fixed pipe, the hook cover plate is provided with a notch, the rotary buckle assembly comprises a rotating part capable of rotating along the axial direction of the rotary buckle assembly and a spring used for providing restoring force for the rotating part, when the hook cover plate moves downwards relative to the safety rod under the action of pressure, the rotating part moves downwards, the head part of the rotating part rotates into the notch relative to the hook cover plate, the hook cover plate is unlocked, when the rotating part moves upwards and backwards under the action of elasticity, the head part of the rotating part rotates to the position of buckling with the hook cover plate around the notch, the bracket hook cover plate is fixedly clamped on the bumper, a first inclined surface is arranged on the fixing pipe, a second inclined surface is arranged on the driving pipe, the second inclined surface and the first inclined surface are arranged along the circumferential direction of the rotary buckle assembly in an adjacent mode, a third inclined surface is arranged on the rotating part, when the driving pipe and the bracket hook cover plate move downwards together, the second inclined surface is in contact with the third inclined surface to drive the rotating part to move downwards and rotate, and when the rotating part moves backwards upwards under the action of elasticity, the first inclined surface is in contact with the third inclined surface to drive the rotating part to continue to rotate.

Furthermore, the breach is a style of calligraphy, the head of rotating part is for following the radial style of calligraphy structure that extends of rotating part.

Further, the spring is located between the tail end of the rotating part and the tail end of the fixed pipe, when the hook supporting cover plate moves downwards relative to the safety rod under the action of pressure, the driving pipe and the hook supporting cover plate move downwards together and drive the rotating part to move downwards and the head of the rotating part to rotate, and when the rotating part moves back upwards under the action of elasticity, the head of the rotating part is driven by the fixed pipe to continue to rotate.

Furthermore, the fixed pipe comprises a fixed inner pipe and a fixed outer pipe, the fixed outer pipe is clamped on the bumper, the fixed inner pipe is located in the fixed outer pipe and is fixed relative to the fixed outer pipe, and the first inclined plane is arranged on the fixed inner pipe.

Furthermore, the tail end of the fixed inner tube is provided with 4 inverted V-shaped helicoids with a distance of 90 degrees in pairs, each inverted V-shaped helicoid comprises a vertical plane, an upper dead point, a lower dead point and the first inclined plane, the upper dead point is arranged at the intersection point of the vertical plane and the first inclined plane, and the lower dead point is arranged at one end of the vertical plane opposite to the upper dead point.

Furthermore, the top of the fixed outer tube is provided with a plurality of hooks and a limiting part, the hooks and the limiting part are axially spaced by a certain distance, and the bumper is clamped between the hooks and the limiting part.

Furthermore, the tail end of the driving pipe is provided with a circle of transition structure, and the transition structure comprises a horizontal plane and the second inclined plane.

Furthermore, the outside of driving tube is equipped with the restriction groove, the restriction groove with fixed inner tube joint, the driving tube can only along fixed inner tube up-and-down motion and can not rotate.

Furthermore, the afterbody of rotating part is equipped with 2 at a distance of 180 and the axial of rotating part extends's guide part, the third inclined plane is located the top of guide part.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the opening structure of the hook supporting cover plate, the rotation of the rotary buckle assembly can be realized through pressing, the hook supporting cover plate is unlocked, the opening mode of the traditional hook supporting cover plate is changed, the rotation type is changed into a real pressing type opening structure, the opening direction is the pressing direction, an opening tool is not needed, the operation is simple and convenient, and the problem of interference between the rotation and peripheral parts is not needed to be considered; simultaneously, for realizing that the opening force is controllable, the elastic coefficient of the spring in the rotatory buckle assembly is fixed, and accessible spring compression amount accurate calculation presses the opening force to with the help of the opening force of the stability ability maintenance settlement of spring, reduce later stage debugging time and expense, promote customer's quality perception.

Drawings

Fig. 1 is an axial sectional view of a part of the structure (lacking a fixed inner pipe and a notch) of the opening structure of the hook cover plate of the invention.

Fig. 2 is a schematic view of the locking state of the opening structure (lacking the fixed inner pipe) of the hook supporting cover plate of the invention.

Fig. 3 is a schematic view of the unlocking state of the opening structure (lacking the fixed inner tube) of the hook supporting cover plate.

FIG. 4 is a cross-sectional view of the rotating buckle assembly of the present invention.

FIG. 5 is a partially disassembled view of the rotating buckle assembly according to the present invention.

Fig. 6 is a front view of the rotary bayonet assembly of the present invention (with the fixed outer tube removed).

Fig. 7 is a left side view of the rotary latch assembly of the present invention (with the fixed outer tube removed).

FIG. 8 is a dynamic view of the rotating buckle assembly during the locking of the hook cover plate of the present invention.

Wherein: 1-a bumper; 2-supporting hook cover plate; 3-rotating the buckle assembly; 4-notch; 5-fixing the tube; 51-fixing the inner tube; 51 a-a limiting tube; 51 b-inverted V-shaped helicoid; 51b1 — first ramp; 51b 2-vertical plane; 51b 3-top dead center; 51b4 — bottom dead center; 52-fixing the outer tube; 52 a-hook; 52 b-stop portion; 6-driving the tube; 61-transition structure; 61 a-a second bevel; 61 b-horizontal plane; 62-a restriction slot; 7-a rotating part; 71-a head; 72-tail; 72 a-a guide; 72a1 — third ramp; 73-a connecting part; 8-spring.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated in the present description are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a hook cover plate opening structure, which includes a safety lever 1, a hook cover plate 2 mounted on the safety lever 1, and a rotary buckle assembly 3 clamped to the safety lever 1.

Wherein, a part of the bumper 1 is sunken inwards to form a sunken area, and the hook supporting cover plate 2 is covered on the sunken area. 2 inboard in the support hook apron is equipped with 2 linear breachs 4 of arranging along the vertical direction, and breach 4 can cooperate with rotatory buckle assembly 3, realizes the locking and the unblock to support hook apron 2.

Specifically, referring to fig. 4, the rotating buckle assembly 3 includes a fixed tube 5, a driving tube 6 located inside the fixed tube 5, a rotating part 7 located inside the driving tube 6, and a spring 8 located at the tail end of the rotating part 7, and the elastic coefficient of the spring 8 is fixed.

Further, referring to fig. 5-7, the fixed tube 5 includes a fixed inner tube 51 and a fixed outer tube 52. The fixed outer tube 52 has a U-shaped axial cross-section, and the spring 8 is provided at the closed end of the fixed outer tube 52. The fixed inner tube 51 is engaged with the fixed outer tube 52 and fixed to the fixed outer tube 52. The tail end of the fixed inner tube 51 is provided with 4 inverted V-shaped spiral surfaces 51b spaced by 90 ° in pairs, the inverted V-shaped spiral surfaces 51b are used for limiting the rotation of the rotating portion 7 to 90 ° each time, and include a first inclined surface 51b1, a vertical surface 51b2, an upper dead point 51b3 and a lower dead point 51b4, the upper dead point 51b3 is located at the intersection point of the first inclined surface 51b1 and the vertical surface 51b2, and the lower dead point 51b4 is located at the other end of the vertical surface 51b2 opposite to the upper dead point 51b 3. The top of the fixed outer tube 52 is provided with 4 hooks 52a and a limiting part 52b which are separated by 90 degrees, the hooks 52a and the limiting part 52b are axially spaced by a certain distance, so that the bumper 1 can be clamped between the hooks 52a and the limiting part 52b, and the rotary buckle assembly 3 is clamped on the bumper 1. A circle of transition structure 61 is arranged at the tail end of the driving pipe 6, and the transition structure 61 comprises a second inclined surface 61a and a horizontal surface 61b and can drive the rotating part 7 to rotate for a certain angle but not more than 90 degrees; the outside of the driving tube 6 is further provided with a limiting groove 62, and the limiting groove 62 is clamped with the fixed inner tube 51 and used for limiting the driving tube 6 to move up and down along the fixed inner tube 51 and not to rotate. The rotating portion 7 includes a head portion 71 at a top end, a tail portion 72 at a lower end, and a connecting portion 73 connecting the head portion 71 and the tail portion 72. The head 71 is a linear structure extending along the radial direction of the rotating portion 7 and can be clamped inside the notch 4 to lock the hook supporting cover plate 2, and the head 71 can be separated from the notch 4 after rotating for 90 degrees to unlock the hook supporting cover plate 2. The side of the notch 4 parallel to the hook supporting cover plate 2 is at a distance of 2mm from the head 71, which is convenient for the downward movement of the rotating part 7 and the taking-out of the hook supporting cover plate 2. The tail part 72 is provided with 2 cuboid-shaped guide parts 72a which are 180 degrees apart and perpendicular to the tail end 72, the top end of the guide part 72a is provided with a third inclined surface 72a1 which can be matched with the second inclined surface 61a of the driving pipe 6 and the first inclined surface 51b1 of the fixed inner pipe 51 to realize the rotation of the rotating part 7. The rotating portion 7 is a movable member that can perform a rotating motion and a vertical motion along with the driving pipe 6.

In the structure for opening the hook cover plate provided in this embodiment, the hook cover plate is locked and unlocked by the up-down and rotational movement of the rotating buckle, referring to fig. 8, when a pressure is applied to the hook cover plate 2, the hook cover plate 2 starts to move downward, the inner notch 4 thereof also moves downward, the driving tube 6 on the rotating buckle assembly 3 contacting with the driving tube is driven to move downward along the limiting tube 51a inside the inner side 51 of the fixed tube during the movement, and after reaching the bottom dead point 51b4 of the inverted V-shaped spiral surface 51b on the inner side 51 of the fixed tube, the second inclined surface 61a in the transition structure 61 on the tail end of the driving tube 6 starts to contact with the third inclined surface 72a1 in the guide portion 72a on the tail end of the rotating portion 7, so as to push the rotating portion 7 to start to rotate, and when the third inclined surface 72a1 completely slides over the second inclined surface 61a to the bottom dead point 61b, at this time, the horizontal surface 72a 4 is passed over the bottom dead point 51b, in this process, the rotary part is moved both downward and rotated by a certain angle. Then, the pressure on the top of the driving tube 6 is removed, the tail part 72 of the rotating part 7 starts to rebound upwards under the action of the compression force of the bottom spring 8, and in the process of rebounding, the tail part contacts the first inclined surface 51b1 on the adjacent inverted V-shaped spiral surface 51b at the bottom of the fixed inner tube 51, slides upwards along the first inclined surface 51b1 and continues to rotate, slides to the upper dead point 51b3 to be clamped, the rotating part 7 finishes rotating, and at the end, the rotating part 7 rotates 90 degrees together, and at the moment, the head part 71 of the rotating part 7 in a transverse cuboid structure is just parallel to the notch 4, so that the locking of the hook supporting cover plate 2 is realized.

The in-process of die-hook apron unblock, the motion of rotatory buckle assembly 3 is roughly the same with the locking process, only needs exert pressure once more, and rotating part 7 rotates 90 once more, alright take out die-hook apron, consequently, no longer gives unnecessary details here.

Through the above description, the hook supporting cover plate opening structure provided by the invention can realize the rotation of the rotary buckle assembly through the pressing action to unlock the hook supporting cover plate, the traditional opening mode of the hook supporting cover plate is changed, the rotation mode is changed into a real pressing type opening structure, the opening direction is the pressing direction, an opening tool is not needed, the operation is simple and convenient, and the problem of interference between the rotation and peripheral parts is not needed to be considered; simultaneously, for realizing that the opening force is controllable, the elastic coefficient of the spring in the rotatory buckle assembly is fixed, and accessible spring compression amount accurate calculation presses the opening force to with the help of the opening force of the stability ability maintenance settlement of spring, reduce later stage debugging time and expense, promote customer's quality perception.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The structure for opening the hook supporting cover plate is characterized by comprising a safety rod (1), the hook supporting cover plate (2) arranged on the safety rod (1) and a rotary buckle assembly (3) used for clamping the hook supporting cover plate (2) on the safety rod (1), wherein the rotary buckle assembly (3) further comprises a fixed pipe (5) and a driving pipe (6) positioned in the fixed pipe (5), a notch (4) is formed in the hook supporting cover plate (2), the rotary buckle assembly (3) comprises a rotary part (7) capable of axially rotating along the rotary buckle assembly (3) and a spring (8) used for providing restoring force for the rotary part (7), when the hook supporting cover plate (2) moves downwards relative to the safety rod (1) under the action of pressure, the rotary part (7) moves downwards, and the head (71) of the rotary part (7) rotates into the notch (4) relative to the hook supporting cover plate (2), the hook supporting cover plate (2) is unlocked, when the rotating part (7) moves back upwards under the action of elastic force, the head (71) of the rotating part (7) rotates to the position where the hook supporting cover plate (2) around the notch (4) is buckled, the hook supporting cover plate (2) is fixedly clamped on the bumper bar (1), the fixing pipe (5) is provided with a first inclined surface (51 b 1), the driving pipe (6) is provided with a second inclined surface (61 a), the second inclined surface (61 a) and the first inclined surface (51 b 1) are adjacently arranged along the circumferential direction of the rotating buckle assembly (3), the rotating part (7) is provided with a third inclined surface (72 a 1), when the driving pipe (6) and the hook supporting cover plate (2) move downwards together, the second inclined surface (61 a) is in contact with the third inclined surface (72 a 1) to drive the rotating part (7) to move downwards and rotate, when the rotating part (7) moves back and forth upwards under the action of elastic force, the first inclined surface (51 b 1) is in contact with the third inclined surface (72 a 1), and the rotating part (7) is driven to rotate continuously.

2. The opening structure of a hook cover plate according to claim 1, wherein the notch (4) is a straight line, and the head (71) of the rotary part (7) is a straight line structure extending along the radial direction of the rotary part (7).

3. The hook supporting cover plate opening structure according to claim 1, wherein the spring (8) is located between the tail end of the rotating part (7) and the tail end of the fixed pipe (5), when the hook supporting cover plate (2) moves downward relative to the safety lever (1) under pressure, the driving pipe (6) moves downward together with the hook supporting cover plate (2) and drives the rotating part (7) to move downward and the head part (71) of the rotating part (7) to rotate, and when the rotating part (7) moves back upward under the elastic force, the fixed pipe (5) drives the head part (71) of the rotating part (7) to continue rotating.

4. The hook cover opening structure according to claim 1, wherein the fixed tube (5) comprises a fixed inner tube (51) and a fixed outer tube (52), the fixed outer tube (52) is clamped on the bumper (1), the fixed inner tube (51) is positioned in the fixed outer tube (52) and fixed relative to the fixed outer tube (52), and the first inclined surface (51 b 1) is arranged on the fixed inner tube (51).

5. The cover plate opening structure of the supporting hook of claim 4, wherein the tail end of the fixed inner tube (51) is provided with 4 inverted V-shaped spiral surfaces (51 b) with a 90 ° distance therebetween, the inverted V-shaped spiral surfaces (51 b) comprise a vertical surface (51 b 2), a top dead center (51 b 3), a bottom dead center (51 b 4) and the first inclined surface (51 b 1), the top dead center (51 b 3) is arranged at the intersection of the vertical surface (51 b 2) and the first inclined surface (51 b 1), and the bottom dead center (51 b 4) is arranged at the end of the vertical surface (51 b 2) opposite to the top dead center (51 b 3).

6. The opening structure of the supporting hook cover plate of claim 4, wherein the top of the fixed outer tube (52) is provided with a plurality of hooks (52 a) and a limiting part (52 b), the hooks (52 a) and the limiting part (52 b) are axially spaced at a certain distance, and the safety rod (1) is clamped between the hooks (52 a) and the limiting part (52 b).

7. The hook cover opening arrangement according to claim 1, characterized in that the end of the driving tube (6) is provided with a ring of transition structure (61), said transition structure (61) comprising a horizontal surface (61 b) and said second inclined surface (61 a).

8. The hook cover opening structure according to claim 4, wherein the driving tube (6) is provided with a limiting groove (62) at the outer side, the limiting groove (62) is clamped with the fixed inner tube (51), and the driving tube (6) can only move up and down along the fixed inner tube (51) but cannot rotate.

9. The opening structure of the hook cover according to claim 1, wherein the tail portion (72) of the rotating portion (7) is provided with 2 guide portions (72 a) having a 180 ° distance therebetween and extending in the axial direction of the rotating portion (7), and the third inclined surface (72 a 1) is provided at the tip end of the guide portions (72 a).