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CN-224224879-U - Automatic rolling structure of sunshade curtain with buffering damping

CN224224879UCN 224224879 UCN224224879 UCN 224224879UCN-224224879-U

Abstract

The utility model discloses an automatic rolling structure of a sunshade curtain with buffering damping, which comprises a rolling barrel box and an installation assembly, wherein the installation assembly is used for installing the rolling barrel box on an automobile window, a first end cover and a second end cover are respectively installed at two ends of the rolling barrel box, a rolling curtain pipe is arranged in the rolling barrel box, a shaft head is fixed at the inner side of the first end cover, two ends of the rolling curtain pipe are respectively installed on the shaft head of the first end cover and the second end cover in a rotating mode, and in sum, the utility model provides smaller damping force at the initial rolling section of the sunshade curtain through the buffering damping assembly, so that the initial stage of the rolling process is rapid and smooth, good user experience is ensured, the damping effect is gradually enhanced at the final rolling section, the phenomenon that sunshade curtain strips impact the rolling barrel box at high speed is avoided, the damage and noise caused by severe structural collision are remarkably prolonged, and meanwhile, the silence and the comfort of riding environment are greatly improved.

Inventors

  • CHEN JUNYU

Assignees

  • 陈俊瑜

Dates

Publication Date
20260512
Application Date
20250729

Claims (8)

  1. 1. The automatic rolling structure of the sunshade curtain with the buffering damping comprises a rolling barrel box (1) and an installation assembly (2), wherein the installation assembly (2) is used for installing the rolling barrel box (1) on an automobile window, a first end cover (3) and a second end cover (4) are respectively installed at two ends of the rolling barrel box (1), and the automatic rolling structure is characterized in that a rolling curtain pipe (5) is arranged in the rolling barrel box (1), a shaft head (15) is fixed at the inner side of the first end cover (3), two ends of the rolling curtain pipe (5) are respectively installed on the shaft head (15) of the first end cover (3) and the second end cover (4) in a rotating mode, a torsion spring (6) is arranged in the rolling curtain pipe (5), one end of the torsion spring (6) is fixedly connected to the end part of the shaft head (15), and the other end of the torsion spring (6) is connected to the rolling curtain pipe (5); The second end cover (4) is further provided with a buffer damping assembly (16), the buffer damping assembly (16) acts on the end part of the roller shutter pipe (5), the roller shutter pipe (5) is wound with a sunshade curtain (7), the roller shutter box (1) is provided with a slit hole (8) along the axial direction, the end part of the sunshade curtain (7) penetrates out from the slit hole (8), the end part of the sunshade curtain (7) is connected with a slat (9), and the slat (9) is provided with a hook handle (10).
  2. 2. The automatic rolling structure of the sunshade curtain with buffering damping is characterized in that an inner wall of a rolling curtain pipe (5) is an inner spline, a first outer spline sleeve (12) is sleeved on a shaft head (15) of a first end cover (3), the first outer spline sleeve (12) can rotate relative to the shaft head (15), a second outer spline sleeve (13) is rotatably installed on a second end cover (4), two ends of the rolling curtain pipe (5) are respectively connected with the first outer spline sleeve (12) and the second outer spline sleeve (13) in a spline mode, a sliding sleeve (14) matched with the sliding sleeve is arranged in the rolling curtain pipe (5), the sliding sleeve (14) is provided with an outer spline, and the end portion of a torsion spring (6) is connected to the sliding sleeve (14).
  3. 3. The automatic rolling back structure of the sunshade curtain with buffering damping according to claim 2, wherein the buffering damping assembly (16) comprises an assembling cover (17) and a reduction gear set (18), the assembling cover (17) is used for assembling the reduction gear set (18) on the outer side of the second end cover (4) through a plurality of bolts, and a first fixed shaft (19) and a second fixed shaft (20) are fixed on the outer side of the second end cover (4); The speed reduction gear set (18) comprises a driving gear (21), a driven gear (22) and a duplex gear (23), wherein the driving gear (21) is connected with a shaft hub of the second external spline housing (13), the duplex gear (23) is rotatably arranged on the first fixed shaft (19), the duplex gear (23) consists of a large gear (24) and a small gear (25), and the driven gear (22) is rotatably arranged on the second fixed shaft (20); Wherein the driving gear (21) is meshed with the large gear (24), the small gear (25) is meshed with the driven gear (22), the radius of the driving gear (21) is smaller than that of the large gear (24), and the radius of the small gear (25) is smaller than that of the driven gear (22); A spring (26) is arranged on the inner side of the assembly cover (17), and the spring (26) acts on the driven gear (22).
  4. 4. The automatic rolling structure of the sunshade curtain with the buffering damping is characterized in that an assembling round hole (27) is formed in the second end cover (4), a spline short tube (28) is fixed to the end face of the second external spline housing (13), the spline short tube (28) is installed in the assembling round hole (27) and can rotate, a spline shaft (29) is fixed to the end portion of the driving gear (21), and the spline shaft (29) is in spline fit with the spline short tube (28).
  5. 5. The automatic rolling back structure of the sunshade curtain with buffering damping according to claim 4, wherein the gear ratio of the driving gear (21) to the large gear (24) is 1:3, and the gear ratio of the small gear (25) to the driven gear (22) is 1:4.
  6. 6. The automatic rolling structure of the sunshade curtain with buffering damping according to any one of claims 1 to 5, wherein the rolling curtain pipe (5) consists of an inner spline pipe (30) and a conical reducer pipe (31), and the conical reducer pipe (31) is sleeved and fixed on the outer wall of the inner spline pipe (30).
  7. 7. An automatic rolling-back structure of a sunshade curtain with buffering damping according to claim 1, characterized in that the hook handle (10) is mounted in the middle of the slat (9) in a hinged manner.
  8. 8. The automatic rolling structure of the sunshade curtain with buffering damping according to claim 1, wherein the installation assembly (2) comprises an inner clamping shell (32) and an outer clamping shell (33), an installation clamping space is formed between the inner clamping shell (32) and the outer clamping shell (33), a plurality of screws are connected between the inner clamping shell (32) and the outer clamping shell (33), and the rolling barrel box (1) is fixedly installed on the inner clamping shell (32).

Description

Automatic rolling structure of sunshade curtain with buffering damping Technical Field The utility model belongs to the technical field of automobile sun shades, and particularly relates to an automatic rolling structure of a sun shade with buffering damping. Background In the prior art, a torsion spring is generally adopted as a core rolling power source for the automobile sunshade curtain, however, the automobile sunshade curtain with the structural design has the following defects that the torsion spring is excessively large in rolling force and difficult to effectively buffer particularly at the end of rolling in the process of releasing stored energy, the excessive rolling force can directly act on a storage box body, so that the box body structure bears excessive impact stress, the damage risks such as deformation and cracking of the box body are easily caused under the long-term action, meanwhile, the tail end of the sunshade curtain or the inner structure of the sunshade curtain and the inner structure of the box body are subjected to severe collision in a high-speed and high-impact state, uncomfortable noise problems are inevitably generated, and driving experience is influenced. Disclosure of utility model The utility model aims to provide an automatic rolling structure of a sunshade curtain with buffering damping, which solves the technical problems of stress damage and noise generation caused by overlarge recovery force of a torsion spring structure of the existing automobile sunshade curtain. In order to solve the technical problems, the utility model adopts the following technical scheme: The automatic rolling structure of the sunshade curtain with the buffering damping comprises a rolling barrel box and a mounting assembly, wherein the mounting assembly is used for mounting the rolling barrel box on an automobile window; the rolling device comprises a rolling drum box, a rolling drum, a first end cover, a second end cover, a shaft head, a torsion spring, a rolling drum shaft head, a rolling drum shaft head and a rolling drum shaft, wherein the first end cover and the second end cover are respectively arranged at two ends of the rolling drum box; The second end cover is also provided with a buffer damping assembly which acts on the end part of the roller shutter pipe, the roller shutter pipe is wound with a sunshade curtain, the roller shutter box is provided with a slit along the axial direction, the end part of the sunshade curtain outwards penetrates out of the slit, the end part of the sunshade curtain is connected with a slat, and the slat is provided with a hook handle. Further, the inner wall of the roller shutter pipe is provided with an internal spline, a first external spline sleeve is sleeved on a shaft head of the first end cover and can rotate relative to the shaft head, a second external spline sleeve is rotatably installed on the second end cover, two ends of the roller shutter pipe are respectively in spline connection with the first external spline sleeve and the second external spline sleeve, a sliding sleeve in spline fit with the roller shutter pipe is arranged in the roller shutter pipe, the sliding sleeve is provided with an external spline, and the end part of the torsion spring is connected to the sliding sleeve. Further, the buffering damping assembly comprises an assembly cover and a reduction gear set, wherein the assembly cover is used for assembling the reduction gear set on the outer side of the second end cover through a plurality of bolts; The speed reduction gear set comprises a driving gear, a driven gear and a duplex gear, the driving gear is connected with a second external spline sleeve shaft hub, the duplex gear is rotatably arranged on the first fixed shaft, the duplex gear consists of a large gear and a small gear, and the driven gear is rotatably arranged on the second fixed shaft; The driving gear is meshed with the large gear, the small gear is meshed with the driven gear, the radius of the driving gear is smaller than that of the large gear, and the radius of the small gear is smaller than that of the driven gear; and a spring is arranged on the inner side of the assembly cover and acts on the driven gear. Furthermore, an assembly round hole is formed in the second end cover, a spline short pipe is fixed to the end face of the second external spline housing, the spline short pipe is installed in the assembly round hole and can rotate, a spline shaft is fixed to the end portion of the driving gear, and the spline shaft is in spline fit with the spline short pipe. Further, the gear ratio of the driving gear to the large gear is 1:3, and the gear ratio of the small gear to the driven gear is 1:4. Further, the roller shutter tube consists of an inner spline tube and a conical reducer tube, and the conical reducer tube is sleeved and fixed on the outer wall of the inner spline tube. Further, the hook handle is arranged in the middle of the slat in a hinge