Spring type jacking device assembly and automobile

Abstract

The utility model provides a spring type jacking device assembly and an automobile. The spring type jacking device assembly comprises a sleeve, a first spring, a sliding rod, a jacking base, an assembly hole, a guide sleeve and an elastic limiting structure. A first spring, a sliding rod and a guide sleeve are arranged in the sleeve, the guide sleeve is arranged in the axial direction of the sleeve, one end of the sliding rod is axially installed in the guide sleeve in a sliding mode, and the other end of the sliding rod is connected with the jacking base. The peripheral sides of the guide sleeve and the sliding rod are sleeved with the first spring, one end of the first spring abuts against the sleeve, and the other end of the first spring abuts against the jacking base; an elastic limiting structure capable of stretching out and drawing back in the radial direction of the jacking base is arranged on the jacking base, an assembly hole is formed in the side wall of the sleeve, and the jacking base can be clamped in the assembly hole through the elastic limiting structure to achieve an assembly state or can be in a pop-up state by pressing the elastic limiting structure and under the elastic force action of the first spring. The jacking device is of a reversible structure and can be repeatedly used through resetting, and the later maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile jacking devices, in particular to a spring type jacking device assembly and an automobile. Background Art

[0002] At present, for the protection of external VRUs (vulnerable road users), the main focus of OEMs is to add a traditional lifting structure to the front cover of the vehicle, actively lift the front cover mechanism when hitting a pedestrian, increase the longitudinal space between the cover and the hard points in the cabin, so as to achieve the purpose of reducing pedestrian head injuries, which can significantly improve vehicle safety.

[0003] At present, the lifting structures used in the market are all triggered by gunpowder and are used once. After use, a new lifting mechanism needs to be replaced, which causes waste. Therefore, it is necessary to provide a lifting structure that can be used multiple times. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a spring-type lifting device assembly and a vehicle.

[0005] According to the utility model, a spring-type lifting device assembly is provided, comprising: a sleeve, a first spring, a slide rod, a lifting seat, an assembly hole, a guide sleeve and an elastic limiting structure;

[0006] A first spring, a slide rod and a guide sleeve are arranged in the sleeve, the guide sleeve is arranged along the axial direction of the sleeve, one end of the slide rod is axially slidably installed in the guide sleeve, and the other end is connected to the lifting seat;

[0007] The first spring is sleeved around the guide sleeve and the slide rod, one end of the first spring abuts against the sleeve, and the other end abuts against the lifting seat;

[0008] An elastic limiting structure which can be extended and retracted radially along the lifting seat is arranged on the lifting seat, and an assembly hole is arranged on the side wall of the sleeve. The lifting seat can be clamped in the assembly hole through the elastic limiting structure to realize the assembly state, or can be pressed to realize the pop-up state under the elastic force of the first spring.

[0009] Preferably, the elastic limiting structure comprises: a nut, a guide screw and a second spring;

[0010] A through hole is provided in the lifting seat, a guide screw is installed in the through hole along the radial direction of the lifting seat, the guide screw is provided with a T-shaped structure of a limit portion connecting the column, and a nut is installed at one end of the column away from the limit portion;

[0011] A protrusion is arranged in the middle of the through hole, the column is allowed to pass through the protrusion and move axially along the through hole, the limiting portion and the nut are located at both ends of the protrusion and are limited by the protrusion, and a second spring is installed between the protrusion and the nut.

[0012] Preferably, a slide groove is provided on the column of the guide screw, the anti-rotation screw is installed on the lifting seat, and one end of the anti-rotation screw extends to the slide groove to limit the circumferential rotation of the guide screw.

[0013] Preferably, the nut is fixed on the guide screw via a positioning pin.

[0014] Preferably, one end of the sleeve and the guide sleeve is mounted on a connecting plate, and one end of the first spring abuts against the connecting plate.

[0015] Preferably, the connecting plate is mounted on the vehicle via a mounting bracket.

[0016] Preferably, when the guide screw acts on the nut through the elastic force of the second spring and moves to the limiting portion to interfere with the protrusion, a through hole extends out of one end of the column of the guide screw, and the nut is located outside the lifting seat.

[0017] Preferably, the diameter of the lifting seat is smaller than the inner diameter of the sleeve.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The jacking device of the present application is a reversible structure, which can be used multiple times by resetting, thereby reducing the subsequent maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is an external schematic diagram of the jack in the pop-up state;

[0022] Figure 2 This is the schematic diagram of the use status of the jacking device;

[0023] Figure 3 This is the main view of the jacking device;

[0024] Figure 4 It is the cross-sectional view of the jack (AA);

[0025] Figure 5 It is the cross-sectional view of the jack (BB);

[0026] Figure 6 This is an external schematic diagram of the jack in the assembled state;

[0027] As shown in the figure:

[0028]

[0029] DETAILED DESCRIPTION

[0030] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0031] Hinges 2 are installed at both ends of the lower side of the front cover 3 of the car, and the lifting seat 104 is connected to the hinge 2 and allows the front cover 3 to be lifted by the hinge 2; at the same time, a monitoring device and a controller are also installed on the car, and the monitoring device signal is connected to the controller. The monitoring device includes a radar and a camera. The traditional monitoring device monitors through sensors, but can only monitor pedestrians after a collision. This embodiment uses ADAS signals such as radar and cameras to monitor pedestrians in advance, thereby lifting the front cover 3 in advance, making full use of the time before the collision, and further reducing the risk of false triggering. The controller controls the existing trigger device on the market to press the elastic limiting structure of the lifter 1, so that it enters the pop-up state from the assembly state, thereby lifting the front cover 3.

[0032] First, the monitoring device of the car detects the pedestrian, and the monitoring device sends a collision signal to the controller; the controller controls the trigger device to press the elastic limiting structure of the jacking device 1, so that it enters the pop-up state from the assembled state, thereby lifting the front cover plate 3; the front cover plate 3 of the car is lifted in advance, and the pedestrian's head hits the front cover plate 3, and the front cover plate 3 protects the pedestrian's head; after the collision, the switch lock of the front cover plate 3 is released, and the front cover plate 3 is manually lifted and flipped upward or pressed, and the front cover plate 3 can drive the jacking device 1 to reset.

[0033] Specifically, Figure 1-5 As shown, this embodiment includes: a sleeve 101, a first spring 102, a slide rod 103, a lifting seat 104, a nut 105, an assembly hole 106, a guide sleeve 107, a through hole 108, a guide screw 109, a second spring 110, a positioning pin 111, an anti-rotation screw 112, a connecting plate 113 and a mounting bracket 114;

[0034] A first spring 102, a slide rod 103 and a guide sleeve 107 are arranged in the sleeve 101. The guide sleeve 107 is arranged axially along the sleeve 101. One end of the slide rod 103 is axially slidably installed in the guide sleeve 107, and the other end is connected to the lifting seat 104; the first spring 102 is mounted on the circumference of the guide sleeve 107 and the slide rod 103, one end of the first spring 102 abuts against the sleeve 101, and the other end abuts against the lifting seat 104; an elastic limiting structure that can be radially extended and retracted along the lifting seat 104 is arranged on the lifting seat 104, and an assembly hole 106 is arranged on the side wall of the sleeve 101. The lifting seat 104 can be clamped in the assembly hole 106 through the elastic limiting structure to realize the assembly state or the elastic limiting structure can be pressed and the elastic force of the first spring 102 can realize the pop-up state. One end of the sleeve 101 and the guide sleeve 107 are mounted on the connecting plate 113 , one end of the first spring 102 abuts against the connecting plate 113 , and the connecting plate 113 is mounted on the vehicle through a mounting bracket 114 .

[0035] The elastic limiting structure is composed of a nut 105, a guide screw 109 and a second spring 110; a through hole 108 is provided in the lifting seat 104, and the guide screw 109 is installed in the through hole 108 along the radial direction of the lifting seat 104. The guide screw 109 is provided with a T-shaped structure of a limiting part connecting the column, and the nut 105 is installed at one end of the column away from the limiting part; a protrusion is provided in the middle of the through hole 108, and the column is allowed to pass through the protrusion and move axially along the through hole 108. The limiting part and the nut 105 are located at both ends of the protrusion and are limited by the protrusion, and the second spring 110 is installed between the protrusion and the nut 105. A sliding groove is provided on the column of the guide screw 109, and the anti-rotation screw 112 is installed on the lifting seat 104. One end of the anti-rotation screw 112 extends to the sliding groove to limit the circumferential rotation of the guide screw 109. When the guide screw 109 moves to the limiting portion and interferes with the protrusion due to the elastic force of the second spring 110 acting on the nut 105 , one end of the column of the guide screw 109 extends out of the through hole 108 , and the nut 105 is located outside the lifting seat 104 .

[0036] In one embodiment, the nut 105 is provided with a bevel toward the assembly hole 106. When entering the assembly state from the pop-up state, the bevel of the nut 105 contacts the upper edge of the sleeve 101, and the nut 105 gradually overcomes the elastic force of the second spring 110 along the bevel and retracts into the lifting seat 104 until it moves to the assembly hole 106. Under the elastic force of the second spring 110, the nut 105 pops out and gets stuck in the assembly hole 106, thereby locking the assembly state.

[0037] In one embodiment, the nut 105 is fixed to the guide screw 109 via a positioning pin 111 .

[0038] In one embodiment, the diameter of the lifting seat 104 is smaller than the inner diameter of the sleeve 101 .

[0039] Working process:

[0040] Combination Figure 6 As shown, when in the assembled state, the nut 105 is clamped in the assembly hole 106 of the side wall of the sleeve 101 under the elastic force of the second spring 110, the lifting seat 104 is located in the sleeve 101, and the first spring 102 is in a compressed state; when entering the ejection state from the assembled state, the nut 105 overcomes the elastic force of the second spring 110 under the action of an external force (such as a traction electromagnet) and moves toward the inner direction of the lifting seat 104, the nut 105 no longer interferes with the assembly hole 106, and the lifting seat 104 is ejected under the elastic force of the first spring 102, and the slide The rod 103 slides axially along the guide sleeve 107; when in the pop-up state, the nut 105 is reset under the elastic force of the second spring 110, the lifting seat 104 is completely ejected, and the sliding rod 103 is partially located in the guide sleeve 107 for circumferential limitation; when entering the assembly state from the pop-up state, the lifting seat 104 overcomes the elastic force of the first spring 102 under the action of external force and moves toward the inside of the sleeve 101, and the nut 105 overcomes the elastic force of the second spring 110 under the action of external force and moves toward the inside of the lifting seat 104 until it is in the assembly state.

[0041] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A spring-type lifting device assembly, characterized in that: include: A sleeve (101), a first spring (102), a sliding rod (103), a lifting seat (104), an assembly hole (106), a guide sleeve (107) and an elastic limiting structure; A first spring (102), a slide rod (103) and a guide sleeve (107) are arranged in the sleeve (101); the guide sleeve (107) is arranged axially along the sleeve (101); one end of the slide rod (103) is axially slidably installed in the guide sleeve (107), and the other end is connected to the lifting seat (104); The first spring (102) is sleeved around the guide sleeve (107) and the slide rod (103); one end of the first spring (102) abuts against the sleeve (101), and the other end abuts against the lifting seat (104); The lifting seat (104) is provided with an elastic limiting structure which can be extended and retracted radially along the lifting seat (104); an assembly hole (106) is provided on the side wall of the sleeve (101); the lifting seat (104) can be clamped in the assembly hole (106) through the elastic limiting structure to achieve an assembled state, or can be pressed to achieve a pop-up state under the elastic force of the first spring (102).

2. The spring-type lifting device assembly according to claim 1, characterized in that: The elastic limiting structure comprises: a nut (105), a guide screw (109) and a second spring (110); A through hole (108) is provided in the lifting seat (104), a guide screw (109) is installed in the through hole (108) along the radial direction of the lifting seat (104), the guide screw (109) is provided with a T-shaped structure of a limiting portion connecting a column, and a nut (105) is installed at one end of the column away from the limiting portion; A protrusion is arranged in the middle of the through hole (108), the column is allowed to pass through the protrusion and move axially along the through hole (108), the limiting portion and the nut (105) are located at both ends of the protrusion and are limited by the protrusion, and a second spring (110) is installed between the protrusion and the nut (105).

3. The spring-type lifting device assembly according to claim 2 is characterized in that: A sliding groove is arranged on the column of the guide screw (109), and the anti-rotation screw (112) is installed on the lifting seat (104). One end of the anti-rotation screw (112) extends to the sliding groove to limit the circumferential rotation of the guide screw (109).

4. The spring-type lifting device assembly according to claim 2, characterized in that: The nut (105) is fixed on the guide screw (109) via a positioning pin (111), and the nut (105) is provided with an inclined surface facing the assembly hole (106).

5. The spring-type lifting device assembly according to claim 1 is characterized in that: One end of the sleeve (101) and the guide sleeve (107) are mounted on a connecting plate (113), and one end of the first spring (102) abuts against the connecting plate (113).

6. The spring-type lifting device assembly according to claim 5, characterized in that: The connecting plate (113) is installed on the vehicle via a mounting bracket (114).

7. The spring-type lifting device assembly according to claim 2, characterized in that: When the guide screw (109) acts on the nut (105) through the elastic force of the second spring (110) and moves to the limit portion to interfere with the protrusion, one end of the column of the guide screw (109) extends out of the through hole (108) and the nut (105) is located outside the lifting seat (104).

8. The spring-type lifting device assembly according to claim 1, characterized in that: The diameter of the lifting seat (104) is smaller than the inner diameter of the sleeve (101).

9. The spring-type lifting device assembly according to claim 2, characterized in that: When in the assembled state, the nut (105) is clamped in the assembly hole (106) on the side wall of the sleeve (101) under the elastic force of the second spring (110), the lifting seat (104) is located in the sleeve (101), and the first spring (102) is in a compressed state; When entering the ejection state from the assembly state, the nut (105) overcomes the elastic force of the second spring (110) under the action of external force and moves toward the inside of the lifting seat (104), the nut (105) no longer interferes with the assembly hole (106), the lifting seat (104) is ejected under the elastic force of the first spring (102), and the slide rod (103) slides axially along the guide sleeve (107); When in the ejection state, the nut (105) is reset under the elastic force of the second spring (110), the lifting seat (104) is completely ejected, and the sliding rod (103) is partially located in the guide sleeve (107) for circumferential limiting; When entering the assembly state from the pop-up state, the lifting seat (104) overcomes the elastic force of the first spring (102) under the action of external force and moves toward the interior of the sleeve (101), and the nut (105) overcomes the elastic force of the second spring (110) under the action of external force and moves toward the interior of the lifting seat (104) until it is in the assembly state.

10. An automobile using the spring-type lifting device assembly according to any one of claims 1 to 9, characterized in that: include: Hinge (2), front cover (3), monitoring device and controller; The hinge (2) is mounted on the front cover (3), and the lifting seat (104) is connected to the hinge (2) and allows the front cover (3) to be lifted through the hinge (2); The monitoring device signal is connected to the controller, and the monitoring device includes a radar and a camera.

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