Vehicle-mounted hanging device
By adopting an arc-shaped drive shaft and a surrounding shaft design in the vehicle-mounted suspension device, combined with limiting components, the problems of sling wear and breakage are solved, thereby improving the durability and safety of the sling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SMARFODY MOBILITY TECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-21
AI Technical Summary
Existing vehicle-mounted suspension devices are prone to wear and breakage during the sling wrapping process, posing safety hazards and having a short service life.
A vehicle-mounted suspension device was designed, which uses a drive shaft and a surrounding shaft with curved surfaces. The sling is wrapped around its outer circumference to avoid contact with sharp edges and corners. The extension and retraction of the sling is controlled by a limiting component to prevent excessive rotation.
It effectively reduces sling wear, extends service life, improves safety when lifting heavy objects, and avoids the risk of sling breakage.
Smart Images
Figure CN224145837U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle-mounted lifting equipment, and in particular to a vehicle-mounted hoisting device. Background Technology
[0002] With the development of technology and the improvement of living standards, vehicle-mounted lifting devices are becoming increasingly popular to facilitate travel and work. These devices, placed in the trunk of a vehicle, can be used to move heavy objects such as mobility scooters, toolboxes, and small equipment. In existing lifting devices, a motor drives a rotating shaft with a square groove in the middle. One end of the lifting strap is fixed in the groove, and the other end is connected to a hook for lifting heavy objects. During lifting, the shaft rotates, causing the strap to continuously wrap around its outer edge. However, during this wrapping process, the innermost strap is pressed against the sharp edges of the square groove opening, easily causing wear and breakage. Furthermore, the damage to the strap is exacerbated by the weight of the load, reducing its lifespan and posing a safety hazard when lifting heavy objects. Therefore, it is necessary to develop a vehicle-mounted lifting device to address these problems. Utility Model Content
[0003] The purpose of this invention is to provide a vehicle-mounted suspension device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A vehicle-mounted suspension device includes a fixed base, a support rod, a swing arm assembly, and a suspension assembly. The lower end of the support rod is detachably mounted on the fixed base. The right end of the swing arm assembly is fixed to the upper end of the support rod and its angle is adjustable. The suspension assembly is fixed to the left end of the swing arm assembly. The suspension assembly includes a rotary drive component, a mounting bracket, a bearing, a drive shaft, a connecting plate, a surrounding shaft, and a suspension strap component. The swing arm assembly has a downward-facing mounting cavity. The mounting bracket is fixed on the front and rear sides of the swing arm assembly. The bearing is fixed on the mounting bracket. Both ends of the drive shaft are rotatably mounted on the mounting bracket via bearings. The rotary drive component is fixed on the mounting bracket, and its power output end is connected to one end of the drive shaft. One end of the connecting plate is fixed to the drive shaft, and both the front and rear sides of the other end are provided with mounting bosses. The front and rear ends of the surrounding shaft are rotatably mounted on two sets of mounting bosses. The outer circumferences of the drive shaft and the surrounding shaft are arc-shaped surfaces. One end of the suspension strap component is sleeved on the surrounding shaft.
[0006] Further description of the present invention: The fixed base includes a support frame, a fixed sleeve, a locking bolt and a knob. The fixed sleeve is fixed on the support frame and has an installation hole. The lower end of the support rod is inserted into the installation hole. The locking bolt is threadedly connected to the fixed sleeve and its inner end abuts against the support rod. The knob is fixed to the outer end of the locking bolt.
[0007] Further description of the present invention: The swing arm assembly includes a longitudinal connecting arm, a transverse connecting arm, a hinge rod, and a locking rod. The lower end of the longitudinal connecting arm is fixed to the support rod. A clearance groove is provided at the left end of the longitudinal connecting arm. The right end of the transverse connecting arm is rotatably mounted on the upper end of the longitudinal connecting arm. An installation cavity is provided below the transverse connecting arm. The upper end of the longitudinal connecting arm corresponds to the installation cavity. A strip-shaped hole is provided along the left-right direction of the transverse connecting arm. Multiple sets of locking grooves are also provided on the transverse connecting arm. The locking grooves correspond to the upper part of the strip-shaped hole and communicate with the strip-shaped hole. The lower end of the hinge rod is rotatably mounted on the lower end of the longitudinal connecting arm and corresponds to the clearance groove. The locking rod is provided along the front-back direction and fixed to the upper end of the hinge rod. The end of the locking rod corresponds to the strip-shaped hole.
[0008] Further description of the present invention: The hanging assembly also includes a guide shaft rod, which is rotatably mounted in the mounting cavity and corresponds to the left side of the shaft rod, and the sling component is wrapped around the left side of the guide shaft rod.
[0009] Further description of this utility model: It also includes a limiting component, which includes a protective shell, a contact sensor, and a limiting baffle. The protective shell is fitted over the left end of the swing arm assembly, and a limiting hole is provided at the lower end of the protective shell. The sling component passes through the limiting hole and has a hook fixed at its lower end. The contact sensor is fixed on the mounting bracket, and the sensing end of the contact sensor protrudes downward from the limiting hole. The limiting baffle is fitted over the sling component and corresponds to the area above the hook. The area of the limiting baffle is larger than the area of the limiting hole.
[0010] The beneficial effects of this utility model are as follows: The fixed base is fixed inside the trunk of the vehicle. When hoisting heavy objects (such as mobility scooters, equipment, etc.), the support rod is placed on the fixed base, and the swing arm is adjusted to a suitable angle. The heavy object is then lifted by the hoisting assembly. During the hoisting process, the rotating drive component causes the drive shaft to rotate on the bearing. The drive shaft drives the surrounding shaft to rotate around the drive shaft, so that the end of the hoisting strap component wraps around the outside of the drive shaft and the surrounding shaft. Since the outer circumference of the drive shaft and the surrounding shaft are both arc-shaped surfaces, the hoisting strap component will not come into contact with any sharp edges during the wrapping process, which greatly reduces the probability of wear on the hoisting strap component, extends the service life of the hoisting strap component, and also improves the safety when hoisting heavy objects. Attached Figure Description
[0011] Figure 1 This is an overall structural diagram of the present invention;
[0012] Figure 2 This is a structural diagram of the fixed base in this utility model;
[0013] Figure 3 This is a structural diagram of the swing arm assembly and the suspension assembly in this utility model;
[0014] Figure 4 This is a structural diagram of the hanging assembly in this utility model (where the sling component is hidden and the limiting component is partially hidden);
[0015] Explanation of reference numerals in the attached figures:
[0016] 1. Fixed base; 11. Support frame; 12. Fixed sleeve; 121. Mounting hole; 13. Locking bolt; 14. Knob; 2. Support rod; 3. Swing arm assembly; 31. Longitudinal connecting arm; 311. Clearance groove; 32. Transverse connecting arm; 321. Mounting cavity; 322. Strip hole; 323. Snap-fit groove; 33. Hinge rod; 34. Snap-fit rod; 4. Hanging assembly; 41. Rotary drive component; 42. Mounting bracket; 43. Bearing; 44. Drive shaft; 45. Connecting plate; 451. Mounting boss; 46. Circumferential shaft; 47. Lifting strap component; 471. Hook; 48. Guide shaft; 49. Limiting component; 491. Protective shell; 4911. Limiting hole; 492. Contact sensor; 493. Limiting baffle. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings:
[0018] like Figures 1 to 4 As shown, a vehicle-mounted suspension device includes a fixed base 1, a support rod 2, a swing arm assembly 3, and a suspension assembly 4. The lower end of the support rod 2 is detachably mounted on the fixed base 1. The right end of the swing arm assembly 3 is fixed to the upper end of the support rod 2 and its angle is adjustable. The suspension assembly 4 is fixed to the left end of the swing arm assembly 3. The suspension assembly 4 includes a rotation drive component 41, a mounting bracket 42, a bearing 43, a drive shaft 44, a connecting plate 45, a surrounding shaft 46, and a sling component 47. The swing arm assembly 3 has a downward-opening mounting cavity 321. The mounting bracket 42 is fixed to the front and rear sides of the swing arm assembly 3. The bearing 43 is fixed on the mounting bracket 42. Both ends of the drive shaft 44 are rotatably mounted on the mounting bracket 42 via the bearing 43. The rotary drive component 41 is fixed on the mounting bracket 42 and its power output end is connected to one end of the drive shaft 44. One end of the connecting plate 45 is fixed on the drive shaft 44, and the front and rear sides of the other end are provided with mounting bosses 451. The front and rear ends of the surrounding shaft 46 are rotatably mounted on two sets of mounting bosses 451 respectively. The outer periphery of the drive shaft 44 and the surrounding shaft 46 are both arc-shaped surfaces. One end of the sling component 47 is sleeved on the surrounding shaft 46.
[0019] The fixed base 1 is fixed inside the trunk of the vehicle. When hoisting heavy objects (such as mobility scooters, equipment, etc.), the support rod 2 is placed on the fixed base 1, and the swing arm is adjusted to a suitable angle. The heavy object is then lifted by the hoisting assembly 4. During the hoisting process, the rotating drive component 41 causes the drive shaft 44 to rotate on the bearing 43. The drive shaft 44 drives the surrounding shaft 46 to rotate around the drive shaft 44, so that the end of the sling component 47 surrounds the outside of the drive shaft 44 and the surrounding shaft 46. Since the outer circumference of the drive shaft 44 and the surrounding shaft 46 are both arc-shaped surfaces, the sling component 47 will not come into contact with any sharp edges during the rotation process, which greatly reduces the probability of wear on the sling component 47, extends the service life of the sling component 47, and also improves the safety when hoisting heavy objects.
[0020] The fixed base 1 includes a support frame 11, a fixed sleeve 12, a locking bolt 13, and a knob 14. The fixed sleeve 12 is fixed on the support frame 11 and has a mounting hole 121. The lower end of the support rod 2 is inserted into the mounting hole 121. The locking bolt 13 is threadedly connected to the fixed sleeve 12 and its inner end abuts against the support rod 2. The knob 14 is fixed to the outer end of the locking bolt 13.
[0021] The support base 11 is used to fix the support rod 2 inside the trunk. After inserting the support rod 2 into the mounting hole 121 of the fixing sleeve 12, the inner end of the locking bolt 13 is pressed by rotating the knob 14 to prevent the support rod 2 from shaking and rotating during use.
[0022] The swing arm assembly 3 includes a longitudinal connecting arm 31, a transverse connecting arm 32, a hinge rod 33, and a locking rod 34. The lower end of the longitudinal connecting arm 31 is fixed to the support rod 2. A clearance groove 311 is provided on the left end of the longitudinal connecting arm 31. The right end of the transverse connecting arm 32 is rotatably mounted on the upper end of the longitudinal connecting arm 31. An installation cavity 321 is provided below the transverse connecting arm 32. The upper end of the longitudinal connecting arm 31 corresponds to the installation cavity 321. A strip hole 322 is provided in the transverse connecting arm 32 along the left and right direction. Multiple sets of locking grooves 323 are also provided on the transverse connecting arm 32. The locking grooves 323 correspond to the upper end of the strip hole 322 and communicate with the strip hole 322. The lower end of the hinge rod 33 is rotatably mounted on the lower end of the longitudinal connecting arm 31 and corresponds to the clearance groove 311. The locking rod 34 is provided in the front and back direction and fixed to the upper end of the hinge rod 33. The end of the locking rod 34 corresponds to the strip hole 322.
[0023] The locking rod 34 can slide within the slot 322. The locking rod 34 is moved to the appropriate locking groove 323 and locked into the locking groove 323, thereby forming a stable triangular structure with the longitudinal connecting arm 31, the transverse connecting arm 32, and the hinge rod 33. The transverse connecting arm 32 is adjusted to a suitable tilt angle to facilitate lifting heavy objects. When it is not necessary to lift heavy objects and the swing arm assembly 3 needs to be stored, the locking rod 34 is moved into the slot 322 and the transverse connecting arm 32 is folded down, so that the longitudinal connecting arm 31 is stored in the mounting cavity 321, saving space.
[0024] The suspension assembly 4 also includes a guide shaft 48, which is rotatably mounted within the mounting cavity 321 and corresponds to the left side of the surrounding shaft 46. The sling component 47 is wound around the left side of the guide shaft 48. The guide shaft 48 guides the sling component 47 during winding and unwinding, making the winding and unwinding actions smoother.
[0025] This design also includes a limiting component 49, which includes a protective housing 491, a contact sensor 492, and a limiting baffle 493. The protective housing 491 is fitted onto the outside of the left end of the swing arm assembly 3. The lower end of the protective housing 491 is provided with a limiting hole 4911. The sling component 47 passes through the limiting hole 4911 and has a hook 471 fixed at its lower end. The contact sensor 492 is fixed on the mounting bracket 42. The sensing end of the contact sensor 492 protrudes downward from the limiting hole 4911. The limiting baffle 493 is fitted onto the sling component 47 and corresponds to the area above the hook 471. The area of the limiting baffle 493 is larger than the area of the limiting hole 4911.
[0026] During the winding process, the lower end of the limiting baffle 493 abuts against the hook 471. As the hook 471 lifts the heavy object, the limiting baffle 493 rises along with the hook 471. When it rises to the top, the limiting baffle 493 contacts the bottom of the protective shell 491 and presses the sensing end of the contact sensor 492, thereby controlling the rotary drive component 41 to automatically stop winding. This can prevent the rotary drive component 41 from running continuously and burning out its internal motor, and can also prevent the lower end of the sling component 47 from being torn off.
[0027] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.
Claims
1. A vehicle-mounted hanger device, characterized by: The device includes a fixed base, a support rod, a swing arm assembly, and a hanging assembly. The lower end of the support rod is detachably mounted on the fixed base. The right end of the swing arm assembly is fixed to the upper end of the support rod and its angle is adjustable. The hanging assembly is fixed to the left end of the swing arm assembly. The hanging assembly includes a rotary drive component, a mounting bracket, a bearing, a drive shaft, a connecting plate, a surrounding shaft, and a lifting strap component. The swing arm assembly has a downward-facing mounting cavity. The mounting bracket is fixed to the front and rear sides of the swing arm assembly. The bearing is fixed to the mounting bracket. Both ends of the drive shaft are rotatably mounted on the mounting bracket via the bearing. The rotary drive component is fixed to the mounting bracket, and its power output end is connected to one end of the drive shaft. One end of the connecting plate is fixed to the drive shaft, and both the front and rear sides of the other end have mounting bosses. The front and rear ends of the surrounding shaft are rotatably mounted on two sets of mounting bosses. The outer circumferences of the drive shaft and the surrounding shaft are arc-shaped surfaces. One end of the lifting strap component is sleeved on the surrounding shaft.
2. The overhead suspension device of claim 1, wherein: The fixed base includes a support frame, a fixed sleeve, a locking bolt, and a knob. The fixed sleeve is fixed on the support frame and has an installation hole. The lower end of the support rod is inserted into the installation hole. The locking bolt is threaded to the fixed sleeve and its inner end abuts against the support rod. The knob is fixed to the outer end of the locking bolt.
3. The overhead suspension device of claim 1, wherein: The swing arm assembly includes a longitudinal connecting arm, a transverse connecting arm, a hinge rod, and a locking rod. The lower end of the longitudinal connecting arm is fixed to the support rod. A clearance groove is provided at the left end of the longitudinal connecting arm. The right end of the transverse connecting arm is rotatably mounted on the upper end of the longitudinal connecting arm. The mounting cavity is provided below the transverse connecting arm. The upper end of the longitudinal connecting arm corresponds to the mounting cavity. A strip-shaped hole is provided along the left-right direction of the transverse connecting arm. Multiple sets of locking grooves are also provided on the transverse connecting arm. The locking grooves correspond to the upper part of the strip-shaped hole and communicate with the strip-shaped hole. The lower end of the hinge rod is rotatably mounted on the lower end of the longitudinal connecting arm and corresponds to the clearance groove. The locking rod is provided along the front-back direction and fixed to the upper end of the hinge rod. The end of the locking rod corresponds to the strip-shaped hole.
4. The overhead suspension device of claim 1, wherein: The suspension assembly also includes a guide shaft, which is rotatably mounted in the mounting cavity and corresponds to the left side of the surrounding shaft, and the sling component is wound around the left side of the guide shaft.
5. The overhead suspension device of claim 1, wherein: It also includes a limiting component, which includes a protective housing, a contact sensor, and a limiting baffle. The protective housing is fitted over the left end of the swing arm assembly, and a limiting hole is provided at the lower end of the protective housing. The sling component passes through the limiting hole and has a hook fixed at its lower end. The contact sensor is fixed on the mounting bracket, and the sensing end of the contact sensor protrudes downward from the limiting hole. The limiting baffle is fitted over the sling component and corresponds to the area above the hook. The area of the limiting baffle is larger than the area of the limiting hole.