Heavy lifting bracket and motor home
By designing a heavy lifting bracket including a bracket, a lift swing arm and a drive device, the problem of insufficient automatic lifting and load capacity in the prior art is solved, and the upright posture of the bracket is always facing up and the strong load capacity is achieved.
Patent Information
- Application Number
- CN202421720789.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-19
AI Technical Summary
It is difficult to design a heavy lift bracket that can be automatically lifted, the bracket always faces up, and the motorcycle or bicycle is always upright, especially in terms of load capacity and operational ease.
A heavy lifting bracket including a bracket, a lifting swing arm and a drive device is designed. The bracket is used to place a motorcycle or luggage. The lifting swing arm is hinged between the inside of the bracket and the rear of the vehicle. The drive device is installed between the vehicle chassis and the lifting swing arm, which drives the lifting swing arm to swing up and down so that the bracket always faces upward.
It realizes automatic lifting of the bracket when the vehicle is driving, ensuring that the motorcycle or bicycle is always upright, does not affect the vehicle's passability, and has strong load capacity, suitable for lifting of heavy motorcycles and other heavy luggage.
Smart Images
Figure CN222756512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to automobile parts, in particular to a heavy lifting bracket and a recreational vehicle. Background Art
[0002] When modern people go out for self-driving tours, they like to hang motorcycles or bicycles at the rear of their RVs. In order to ensure that the RV has enough departure angle and does not affect the RV's ability to pass through complex roads, the motorcycles or bicycles are placed on a higher rear bracket. It is very inconvenient to store and retrieve motorcycles or bicycles at high places.
[0003] The industry needs to design a lifting bracket that can automatically rise and fall, and keep the pallet frame always facing upward, so that the motorcycle or bicycle always maintains an upright position. At the same time, considering that some heavy motorcycles have a large mass, the load problem must also be considered when designing the lifting mechanism. Therefore, designing a heavy-duty lifting bracket is a technical problem that the industry urgently needs to solve. Utility Model Content
[0004] In order to solve the above defects existing in the prior art, the utility model proposes a heavy-duty lifting bracket.
[0005] The technical solution adopted by the utility model is to design a heavy-duty lifting bracket, which includes a bracket, a lifting swing arm and a driving device, wherein the bracket is used to place motorcycles, tires or luggage, the lifting swing arm is hinged between the inner side of the bracket and the rear of the vehicle, and the driving device is installed between the vehicle chassis and the lifting swing arm to drive the lifting swing arm to swing up and down, lift or lower the bracket, and keep the bracket facing upward all the time.
[0006] Preferably, the lifting swing arm includes a left swing arm and a right swing arm, the left swing arm is hinged between the left end of the bracket and the rear of the vehicle, and the right swing arm is hinged between the right end of the bracket and the rear of the vehicle, the right swing arm and the left swing arm adopt the same structure, both including an outer rocker arm and an inner rocker arm, wherein the first top end of the outer rocker arm is hinged to the inner side of the bracket and close to the top end, the second top end of the outer rocker arm is hinged to the outer rocker arm pivot seat installed on the upper part of the vehicle chassis, and an outer rocker arm pivot seat is provided between the outer rocker arm pivot seats on the left and right sides; the first top end of the inner rocker arm is hinged to the inner side of the bracket and close to the bottom position, and the second top end of the inner rocker arm is hinged to the inner rocker arm pivot seat installed at the rear end of the vehicle chassis; the outer rocker arm, the inner rocker arm, the inner side of the bracket, the outer rocker arm pivot seat and the inner rocker arm pivot seat of the vehicle chassis together constitute a quadrilateral connecting rod structure.
[0007] Preferably, the outer rocker arm has a driving arm extending obliquely outward and downward at a position where it is hinged to the outer rocker arm pivot seat, the outer rocker arm and the driving arm are integrally formed, and the driving device is installed between the vehicle chassis and the driving arm.
[0008] Preferably, the driving device adopts a hydraulic push rod or an electric push rod.
[0009] Preferably, the inner rocker arm extends outward and downward at an angle at the bottom end near the inner rocker arm rotating shaft seat to form a rear protection bar, which connects the two inner rockers located on the left and right sides; the rear protection bar swings with the inner rocker arm, and when the lifting swing arm is raised, the rear protection bar extends out to block the rear of the vehicle; when the lifting swing arm is lowered, the rear protection bar retracts under the vehicle chassis.
[0010] Preferably, the bracket adopts a frame structure, the outer rocker arm is hinged to the bracket through an upper rotating shaft seat, and the inner rocker arm is hinged to the bracket through a lower rotating shaft seat; when the lifting bracket is raised to the top or placed on the ground, the upper rotating shaft seat and the lower rotating shaft seat are located on the same plumb plane.
[0011] Preferably, the outer rocker arm and / or the inner rocker arm adopts a hollow plate structure.
[0012] Preferably, a motorcycle wheel fixing frame is provided on the bracket.
[0013] The utility model also designs a motorhome with a heavy-duty lifting bracket. The motorhome comprises a motorhome body and a lifting bracket. The lifting bracket adopts the heavy-duty lifting bracket mentioned above.
[0014] Preferably, the lifting swing arm is bent by adhering to the chamfer of the rear end of the vehicle.
[0015] The beneficial effects of the technical solution provided by the utility model are:
[0016] The utility model can be automatically raised and lowered, and the motorcycle can be lifted when the vehicle is moving without affecting the vehicle's passability; after arriving at the camp, the motorcycle can be put on the ground for easy access; during the raising and lowering process, the bracket is always facing upward, so that the motorcycle or bicycle can always maintain an upright posture without tipping over; the utility model has a very strong load-bearing capacity, can easily lift heavy motorcycles or other heavy luggage, and is widely used. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention is described in detail below with reference to the embodiments and drawings, wherein:
[0018] Figure 1 It is a side view of the whole vehicle with the bracket lifted up in the utility model;
[0019] Figure 2 It is a side view of the whole vehicle with the bracket put down;
[0020] Figure 3 It is a side view of the heavy-duty lifting bracket of the utility model when the bracket is lowered;
[0021] Figure 4 It is a three-dimensional view of the heavy-duty lifting bracket of the utility model when the bracket is lowered;
[0022] Figure 5 It is a three-dimensional view of a heavy-duty lifting bracket for lifting the bracket of the utility model;
[0023] Explanation of the reference numerals in the figure: outer rocker arm (1), driving arm (1a), inner rocker arm (2), outer rocker arm shaft seat (3), inner rocker arm shaft seat (4), rear protection bar (5), upper shaft seat (6), lower shaft seat (7), tire (8), motorcycle wheel fixing frame (9), bracket (10), RV body (11), outer rocker arm shaft (13), vehicle chassis (14), hydraulic push rod (15). DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0025] The utility model discloses a heavy-duty lifting bracket, which comprises a bracket 10, a lifting swing arm and a driving device, wherein the bracket 10 is used to place a motorcycle, a tire 8, luggage or other items, the lifting swing arm is hinged between the inner side of the bracket and the rear of the vehicle, and the driving device is installed between the vehicle chassis and the lifting swing arm to drive the lifting swing arm to swing up and down, so as to lift or put down the bracket 10 and keep the bracket 10 facing upward all the time.
[0026] Figure 3 A side view showing the heavy lift bracket lowering the bracket, Figure 4 A perspective view showing a heavy lift bracket lowering the bracket, Figure 5 The utility model can automatically lift and lower the motorcycle while the vehicle is moving, which will not affect the vehicle's passability; after arriving at the camp, the motorcycle can be put on the ground for easy access; during the lifting and lowering process, the bracket is always facing upward, so that the motorcycle or bicycle always maintains an upright posture and will not fall over.
[0027] Since motorcycles or bicycles are relatively long objects, the lifting swing arm also needs to be manufactured into a flat and long shape to support the motorcycle or bicycle and increase the stability of the system. In a preferred embodiment, the lifting swing arm includes a left swing arm and a right swing arm, the left swing arm is hinged between the left end of the bracket 10 and the rear of the vehicle, and the right swing arm is hinged between the right end of the bracket 10 and the rear of the vehicle. The right swing arm and the left swing arm adopt the same structure, both including an outer rocker arm 1 and an inner rocker arm 2, wherein the first top end of the outer rocker arm 1 is hinged to the inner side of the bracket 10 and close to the top end, the second top end of the outer rocker arm 1 is hinged to the outer rocker arm shaft seat 3 installed on the upper part of the vehicle chassis, and an outer rocker arm shaft 13 is provided between the outer rocker arm shaft seats 3 on the left and right sides; the first top end of the inner rocker arm 2 is hinged to the inner side of the bracket 10 and close to the bottom position, the second top end of the inner rocker arm 2 is hinged to the inner rocker arm shaft seat 4 installed at the rear end of the vehicle chassis; the outer rocker arm 1, the inner rocker arm 2, the inner side of the bracket, the outer rocker arm shaft seat 3 and the inner rocker arm shaft seat 4 of the vehicle chassis together constitute a quadrilateral connecting rod structure. The lifting swing arm with a quadrilateral connecting rod structure can smoothly lift or lower the bracket 10 and the motorcycle in the bracket, and keep the bracket 10 facing upward. It should be noted that the two outer rocker arms 1 are installed on the outside, the two inner rocker arms 2 are installed on the inside, the outer rocker arm 1 and the inner rocker arm 2 on the left are installed close to each other, and the outer rocker arm 1 and the inner rocker arm 2 on the right are installed close to each other.
[0028] In order to connect and drive the lifting swing arm and obtain a larger swing angle, in a preferred embodiment, the outer rocker arm 1 is hinged with the outer rocker arm shaft seat 3 and extends a driving arm 1a outward and downward at an angle. The outer rocker arm 1 and the driving arm 1a are integrally formed, and the driving device is installed between the vehicle chassis and the driving arm 1a. It should be pointed out that during the design, the driving device drives the outer rocker arm 1 because the driving device includes two sets, left and right, which are respectively installed on both sides of the vehicle chassis, so it is more direct and convenient for the driving device to drive the outer rocker arm 1 installed on the outside.
[0029] The driving device can be a hydraulic push rod 15 or an electric push rod. Figures 1 to 5 In the preferred embodiment shown, the driving device adopts a hydraulic push rod 15.
[0030] In order to protect the rear of the vehicle, in a preferred embodiment, the inner rocker arm 2 extends outward and downward at an angle at the bottom end position near the inner rocker arm rotating shaft seat 4 to form a rear protection bar 5, which connects the two inner rocker arms 2 located on the left and right sides. The rear protection bar 5 is not the same part as the inner rocker arm 2, but is assembled together later, but can swing with the inner rocker arm 2. When the lifting swing arm is raised, the rear protection bar 5 extends out to block the rear of the vehicle; when the lifting swing arm is lowered, the rear protection bar 5 retracts under the vehicle chassis. Through such a design, the rear protection bar 5 meets the relevant regulatory requirements and can avoid the lowering of the lifting bracket.
[0031] See also Figure 3 In the preferred embodiment shown, the bracket 10 adopts a frame structure, the outer rocker arm 1 is hinged to the bracket 10 through the upper shaft seat 6, and the inner rocker arm 2 is hinged to the bracket 10 through the lower shaft seat 7; when the lifting bracket is raised to the top or placed on the ground, the upper shaft seat 6 and the lower shaft seat 7 are located on the same plumb plane. This design allows the bracket 10 to be close to the rear of the vehicle when the lifting arm is raised. Figure 4 In the preferred embodiment shown, the outer rocker arm shaft seat 3 and the inner rocker arm shaft seat 4 are not installed on the same plumb plane, but the outer rocker arm shaft seat 3 is installed inwardly on the upper part of the vehicle chassis 14, and the inner rocker arm shaft seat 4 is installed at the end of the vehicle chassis 14. This is because the design needs to meet the needs of heavy loads, and the outer rocker arm 1, inner rocker arm 2, outer rocker arm shaft seat 3 and inner rocker arm shaft seat 4 are large in size and volume, making it inconvenient to install the two shaft seats on the same plumb plane.
[0032] In order to reduce the weight of the rocker arm without reducing the vertical support strength of the rocker arm, it is designed to be larger in width and smaller in thickness. In a preferred embodiment, the outer rocker arm 1 and / or the inner rocker arm 2 adopt a hollow plate structure.
[0033] In a preferred embodiment, a motorcycle wheel fixing frame 9 is provided on the bracket 10 to facilitate the placement of heavy motorcycles.
[0034] The utility model also discloses a motorhome with a heavy-duty lifting bracket. The motorhome comprises a motorhome body 11 and a lifting bracket. The lifting bracket adopts the heavy-duty lifting bracket mentioned above.
[0035] In order to increase the departure angle of the RV, the rear end of the RV is designed to be chamfered. In order to reduce the size of the lifting swing arm, in a preferred embodiment, the lifting swing arm is bent along the chamfer of the rear end of the vehicle.
[0036] The above embodiments are for illustration only and are not intended to be limiting. Any equivalent modifications or changes made thereto without departing from the spirit and scope of the present application shall be included in the scope of the claims of the present application.
Claims
1. A heavy-duty lifting bracket, characterized in that: It comprises a bracket (10), a lifting swing arm and a driving device, wherein The bracket (10) is used to place a motorcycle, a tire (8) or luggage. The lifting swing arm is hinged between the inner side of the bracket and the rear of the vehicle. The driving device is installed between the vehicle chassis and the lifting swing arm, and drives the lifting swing arm to swing up and down, thereby raising or lowering the bracket (10) and allowing the bracket (10) to always face upward.
2. The heavy-duty lifting bracket according to claim 1, characterized in that: The lifting swing arm comprises a left swing arm and a right swing arm, the left swing arm is hinged between the left end of the bracket (10) and the rear of the vehicle, and the right swing arm is hinged between the right end of the bracket (10) and the rear of the vehicle. The right swing arm and the left swing arm have the same structure and both comprise an outer swing arm (1) and an inner swing arm (2), wherein The first top end of the outer rocker arm (1) is hinged to a position inside the bracket (10) and close to the top end, the second top end of the outer rocker arm (1) is hinged to an outer rocker arm shaft seat (3) installed on the upper part of the vehicle chassis, and an outer rocker arm shaft seat (13) is provided between the outer rocker arm shaft seats (3) on the left and right sides; The first top end of the inner rocker arm (2) is hinged to the inner side of the bracket (10) and close to the bottom, and the second top end of the inner rocker arm (2) is hinged to the inner rocker arm shaft seat (4) installed at the rear end of the vehicle chassis; The outer rocker arm (1), the inner rocker arm (2), the inner side of the bracket, the outer rocker arm rotating shaft seat (3) and the inner rocker arm rotating shaft seat (4) of the vehicle chassis together form a quadrilateral connecting rod structure.
3. The heavy-duty lifting bracket according to claim 2, characterized in that: The outer rocker arm (1) has a driving arm (1a) extending obliquely outward and downward at a position where it is hinged to the outer rocker arm rotating shaft seat (3); the outer rocker arm (1) and the driving arm (1a) are integrally formed; and the driving device is installed between the vehicle chassis and the driving arm (1a).
4. The heavy-duty lifting bracket according to claim 3, characterized in that: The driving device adopts a hydraulic push rod (15) or an electric push rod.
5. The heavy-duty lifting bracket according to claim 4, characterized in that: The inner rocker arm (2) has a rear protection bar (5) extending outward and downward at an angle at the bottom end position near the inner rocker arm rotating shaft seat (4), and the rear protection bar (5) is connected to the two inner rocker arms (2) located on the left and right sides; the rear protection bar (5) swings together with the inner rocker arm (2), and when the lifting swing arm is raised, the rear protection bar (5) extends out to block the rear of the vehicle; when the lifting swing arm is lowered, the rear protection bar (5) retracts under the vehicle chassis.
6. The heavy-duty lifting bracket according to claim 5, characterized in that: The bracket (10) adopts a frame structure, the outer rocker arm (1) is hinged to the bracket (10) through an upper rotating shaft seat (6), and the inner rocker arm (2) is hinged to the bracket (10) through a lower rotating shaft seat (7); when the lifting bracket is raised to the top or placed on the ground, the upper rotating shaft seat (6) and the lower rotating shaft seat (7) are located on the same plumb plane.
7. The heavy-duty lifting bracket according to claim 2, characterized in that: The outer rocker arm (1) and / or the inner rocker arm (2) adopts a hollow plate structure.
8. The heavy-duty lifting bracket according to claim 1, characterized in that: The bracket (10) is provided with a motorcycle wheel fixing frame (9).
9. A motorhome with a heavy-duty lifting bracket, characterized in that: The RV comprises a RV body (11) and a lifting bracket, and the lifting bracket is a heavy-duty lifting bracket as claimed in any one of claims 1 to 8.
10. The recreational vehicle with a heavy-duty lifting bracket as claimed in claim 9, characterized in that: The lifting swing arm is bent by adhering to the chamfer of the rear end of the vehicle.