Automobile sunshade device

Abstract

The utility model provides an automobile sunshade device, and belongs to the technical field of automobile accessories. The automobile sunshade device solves the technical problems that roller shutter cloth of an existing automobile sunshade device cannot be kept tightened after being unfolded and fluctuates up and down after being blown by wind, noise is generated, automobile paint is damaged and the like. The automobile sunshade device comprises a support, a roller shutter shaft and roller shutter cloth wound on the roller shutter shaft, the support comprises end covers located at the two ends, the roller shutter shaft is rotationally connected between the two end covers, and the automobile sunshade device is characterized in that a locking piece capable of acting on the roller shutter shaft to lock the roller shutter shaft in the circumferential direction is arranged between the support and the roller shutter shaft. The roller shutter cloth has the advantage that the roller shutter cloth can be kept tightened after being unfolded.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and relates to a sunshade device, in particular to an automobile sunshade device. Background Technique

[0002] For a car parked outdoors, intense sunlight in summer will cause the temperature inside the car to soar. There are many kinds of sunshade devices on the market now, such as sunshades and sunshade curtains. The current sunshade devices are all installed inside the car, mainly aiming at the positions of the front / rear windshield and the panoramic sunroof. Although the sunshade device inside the car can prevent sunlight from directly shining on the seats, because it is inside the car, the heat absorbed by the sunshade device will be dissipated inside the car, and the situation of high temperature inside the car cannot be effectively avoided.

[0003] To solve the above problems, people have designed sunshade devices located outside the car, such as the roof sunshade curtain [authorization publication number 201109364], roof sunshade curtain [CN202020427454.8] disclosed in Chinese patent literature, etc. Currently, the sunshade devices located outside the car are installed on the roof, and the roof and the front / rear windshield are covered by a retractable sunshade curtain to achieve sunshading. Because it is located outside the car, the sunshade curtain will not conduct the heat it absorbs into the car while blocking sunlight, thus effectively avoiding the soaring temperature inside the car. Currently, the general sunshade curtain uses a clockwork spring to achieve automatic retraction and tensioning of the sunshade curtain. Since the sunshade curtain is located outside the car, it will inevitably be affected by the wind. When affected by the wind, the elastic force of the clockwork spring cannot ensure that the sunshade curtain remains taut, and the sunshade curtain will fluctuate up and down. The sunshade curtain that fluctuates up and down will hit the vehicle body, generating noise and scratching the vehicle paint during this process. Summary of the Utility Model

[0004] The purpose of the present utility model is to propose an automobile sunshade device in view of the above problems existing in the prior art. The technical problem solved by the present utility model is to keep the rolling curtain taut after it is unfolded.

[0005] The purpose of the present utility model can be realized by the following technical solutions:

[0006] An automobile sunshade device, comprising a support, a rolling curtain shaft and a rolling curtain wound around the rolling curtain shaft. The support includes end caps at both ends. The rolling curtain shaft is rotatably connected between the two end caps. The characteristic is that a locking member capable of axially locking the rolling curtain shaft by acting on the rolling curtain shaft is provided between the support and the rolling curtain shaft.

[0007] When in use, the support is fixedly installed on the car roof. The rolling curtain is pulled out and unfolded to cover the roof and the windshield. The rolling curtain is in a taut state. At this time, the rolling shaft is locked by the locking member, so that the length of the pulled-out rolling curtain is fixed and remains taut, realizing shading the sun outside the vehicle, thereby preventing the heat of direct sunlight from entering the vehicle interior, with better sunshading and heat insulation effects. At the same time, when encountering wind, the rolling curtain will not fluctuate up and down, avoiding the situation of hitting the vehicle body up and down, reducing noise and avoiding damage to the vehicle paint; after the rolling curtain is completely retracted, the locking member circumferentially locks the rolling shaft, so that the rolling curtain remains in the retracted state.

[0008] In the above-mentioned car sunshading device, two rolling shafts are rotatably connected between the two end caps. The two rolling shafts are respectively wound with rolling curtains. The locking member can simultaneously circumferentially lock the two rolling shafts. The front windshield and the rear windshield can be shaded by the two rolling curtains respectively, realizing the overall sunshading of the car roof.

[0009] In the above-mentioned car sunshading device, a locking wheel is fixedly connected to the end of the rolling shaft. The locking member includes a sliding block and a locking arm. A chute is provided on the inner wall of the end cap in the up-down direction. The sliding block is slidably connected in the chute. The locking arm extends above the locking gear. A knob is also rotatably provided on the end cap. A cam is fixed to the inner end of the knob. An elastic member is provided between the lower end of the sliding block and the support. When the knob is rotated until the convex part of the cam presses on the sliding block, the sliding block moves downward to compress the elastic member and the locking arm acts on the locking wheel to circumferentially lock the locking wheel. The sliding block of the locking member is guided to slide up and down by the chute of the end cap. When in use, the cam is rotated by rotating the knob. When the convex part of the cam presses on the sliding block, the sliding block moves downward so that the locking arm approaches and acts on the locking wheel to circumferentially lock the locking wheel. At this time, the elastic member is compressed; continue to rotate the knob. After the convex part of the cam moves away from the sliding block, the sliding block resets upward under the action of the elastic force of the elastic member, and the locking arm disengages from the locking wheel to realize unlocking.

[0010] In the above-mentioned car sunshading device, the locking wheel is a gear. Teeth are provided on the side of the locking arm facing the locking wheel. After the sliding block moves downward, the teeth on the locking arm can mesh with the locking wheel. The locking between the locking arm and the locking wheel is realized through meshing, and the circumferential locking of the rolling shaft by the locking member is realized. When the knob is rotated until the convex part of the cam moves away from the sliding block, the elastic member lifts the sliding block. After the locking arm and the locking wheel are separated, the rolling shaft can rotate freely in the circumferential direction.

[0011] In the above-mentioned vehicle sunshade device, the wheel surface of the locking wheel is a rough surface, and a friction plate is fixed on the side of the locking arm facing the locking wheel. Frictional locking when the two come into contact is achieved by increasing the frictional force between the locking arm and the locking wheel, realizing the circumferential locking of the locking member on the rolling curtain shaft. After the knob is rotated until the convex part of the cam is far away from the sliding block, the elastic member lifts the sliding block. After the locking arm and the locking wheel are separated, the rolling curtain shaft can rotate freely in the circumferential direction.

[0012] In the above-mentioned vehicle sunshade device, convex parts are symmetrically arranged on the cam, and a top plate is arranged above the cam on the inner wall of the end cover. The top plate is bent downward in an arc shape. When one convex part of the cam presses on the sliding block, the other convex part abuts against the top plate. The top plate plays a supporting role when the cam presses on the sliding block.

[0013] In the above-mentioned vehicle sunshade device, a plurality of locking holes located on the same circumference are provided at the end of the rolling curtain shaft. The locking member is a plug pin shaft. A threaded section is provided in the middle of the plug pin shaft. The threaded section of the plug pin shaft is screwed to the end of the support. The inner end of the plug pin shaft can be inserted into one of the locking holes at the end of the rolling curtain shaft. The circumferential locking of the rolling curtain shaft is realized by inserting the plug pin shaft into one of the locking holes at the end of the rolling curtain shaft.

[0014] In the above-mentioned vehicle sunshade device, a limiting block is provided on the front side of the end cover where the rolling curtain shaft is located, and the side edge of the rolling curtain cloth abuts against the corresponding limiting block. The rolling curtain cloth is located between the two limiting blocks of the two end covers. Through the limiting and guiding of the two limiting blocks, the rolling curtain cloth is prevented from shifting axially during winding, ensuring that the rolled-up rolling curtain cloth is neat.

[0015] In the above-mentioned vehicle sunshade device, a long strip-shaped pulling strip is fixed to the outer end of the rolling curtain cloth. The pulling strip is made of silica gel or rubber. When pulling out the rolling curtain cloth, the pulling strip can be grasped to pull out the whole rolling curtain cloth. The texture of silica gel or rubber is relatively soft and will not scratch the car paint when contacting the vehicle body.

[0016] In the above-mentioned vehicle sunshade device, a hook is connected to the outer end of the rolling curtain cloth through a connecting rope. A storage bag is sewn near the outer end of the rolling curtain cloth. The end of the connecting rope is sewn in the storage bag. When the rolling curtain cloth is used for sunshading, the hook is hooked on the front bumper or rear bumper of the vehicle. When the rolling curtain cloth is wound up, the hook and the connecting rope can both be stored in the storage bag to prevent the hook from moving freely.

[0017] Compared with the prior art, the vehicle sunshade device of the present invention has the advantage that the rolling curtain cloth can be kept taut after being unfolded. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the vehicle sunshade device in the first embodiment.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the automotive sunshade device after hiding the top cover in Embodiment 1.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the roller shaft of the automotive sunshade device installed on the support in Embodiment 1.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the roller cloth of the automotive sunshade device after being unfolded in Embodiment 1.

[0022] Figure 5 It is a partial enlarged structural schematic diagram of the end part of the automotive sunshade device after hiding the end cover in Embodiment 1.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the locking member and the end cover.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the end cover.

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the locking member.

[0026] Figure 9 It is a three-dimensional structural schematic diagram of the knob and the cam.

[0027] In the figure, 1 is the support; 11 is the bottom plate; 12 is the top cover; 13 is the end cover; 131 is the limit block; 132 is the convex shaft; 133 is the sliding groove; 134 is the top plate; 135 is the bearing; 2 is the roller shaft; 21 is the main shaft; 22 is the connecting cylinder; 23 is the locking wheel; 3 is the roller cloth; 31 is the pulling strip; 32 is the hook; 33 is the storage bag; 4 is the locking member; 41 is the sliding block; 42 is the locking arm; 421 is the tooth; 43 is the elastic member; 5 is the knob; 51 is the cam; 511 is the convex part; 6 is the fixed connecting member. Specific Embodiment

[0028] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0029] Embodiment 1

[0030] As Figures 1 to 9As shown in the figure, the car sunshade device includes a support 1, a rolling curtain shaft 2, and a rolling curtain cloth 3 wound around the rolling curtain shaft 2. The rolling curtain cloth 3 is made of reflective cloth. The support 1 includes a bottom plate 11, a top cover 12, and two end covers 13 respectively fixed at both ends of the bottom plate 11. The top cover 12 covers the bottom plate 11 and is fixedly connected to the end covers 13. There is a cloth outlet gap between the edge of the top cover 12 and the bottom plate 11. A long strip-shaped pull bar 31 is fixed to the outer end of the rolling curtain cloth 3. The pull bar 31 is made of silicone or rubber. When the rolling curtain cloth 3 is in a wound state, the pull bar 31 is embedded in the cloth outlet gap to close the cloth outlet gap. The rolling curtain shaft 2 is rotatably connected between the two end covers 13. A limiting block 131 is provided on the front side of the rolling curtain shaft 2 on the end cover 13. The side edge of the rolling curtain cloth 3 abuts against the corresponding limiting block 131. The rolling curtain cloth 3 is located between the two limiting blocks 131 of the two end covers 13. A clockwork spring is connected between the rolling curtain shaft 2 and the end cover 13. A convex shaft 132 is further provided on the inner wall of the end cover 13. The end of the rolling curtain shaft 2 and the convex shaft 132 are connected by a bearing 135. The inner end of the clockwork spring is fixedly connected to the convex shaft 132, and the outer end of the clockwork spring is fixedly connected to the rolling curtain shaft 2. A locking member 4 capable of acting on the rolling curtain shaft 2 to circumferentially lock the rolling curtain shaft 2 is provided between the support 1 and the rolling curtain shaft 2.

[0031] Preferably, in this embodiment, a solution using two rolling curtain cloths 3 is adopted. Two rolling curtain shafts 2 are rotatably connected between the two end covers 13. The rolling curtain cloths 3 are respectively wound around the two rolling curtain shafts 2. The locking member 4 can simultaneously circumferentially lock the two rolling curtain shafts 2. At this time, the support 1 is fixed on the roof of the car, and the two rolling curtain cloths 3 respectively shade the front windshield and the rear windshield, realizing the overall shading of the top of the car.

[0032] Locking wheels 23 are fixedly connected to the ends of both rolling shafts 2. The locking wheels 23 are gears. The locking member 4 includes a sliding block 41 and a locking arm 42. The sliding block 41 is located between the two rolling shafts 2. Locking arms 42 are provided on both sides of the sliding block 41. Teeth 421 are provided on the side of the locking arm 42 facing the locking wheel 23. A chute 133 is provided on the inner wall of the end cover 13 in the up and down direction. The sliding block 41 is slidably connected in the chute 133. The locking arm 42 extends above the locking gear. A knob 5 is rotatably provided on the end cover 13. A cam 51 is fixed to the inner end of the knob 5. Convex portions 511 are symmetrically provided on the cam 51. A top plate 134 is provided on the inner wall of the end cover 13 above the cam 51. The top plate 134 is bent downward in an arc shape. An elastic member 43 is provided between the lower end of the sliding block 41 and the support 1. The elastic member 43 is a cylindrical spring or an elastic pad. When the knob 5 is rotated until one of the convex portions 511 of the cam 51 presses against the sliding block 41, the sliding block 41 moves downward to compress the elastic member 43 and the teeth 421 on the locking arm 42 can mesh with the locking wheel 23, and the other convex portion 511 abuts against the top plate 134 at this time. Locking between the locking arm 42 and the locking wheel 23 is achieved through meshing, and circumferential locking of the rolling shaft 2 by the locking member 4 is realized. After the knob 5 is rotated until the convex portion 511 of the cam 51 moves away from the sliding block 41, the elastic member 43 lifts the sliding block 41. After the locking arm 42 and the locking wheel 23 are separated, the rolling shaft 2 can rotate freely in the circumferential direction.

[0033] The outer end of the rolling curtain 3 is connected with a hook 32 through a connecting rope. A storage bag 33 is sewn near the outer end of the rolling curtain 3. The end of the connecting rope is sewn in the storage bag 33. When the rolling curtain 3 is wound up, the hook 32 and the connecting rope can be stored in the storage bag 33 to prevent the hook 32 from moving freely.

[0034] The rolling shaft 2 includes a main shaft 21 and connecting cylinders 22 located at both ends of the main shaft 21. The connecting cylinder 22 includes a cylinder body integrated with the main shaft 21 and a cylinder cover. The locking wheel 23 is fixed to the outside of the cylinder cover. A bearing 135 is embedded in the middle of the locking wheel 23. A convex shaft 132 passes through the bearing 135 and extends into the cylinder body. A clockwork spring is arranged in the cylinder body. The outer end of the clockwork spring is fixedly clamped with the inner wall of the cylinder body.

[0035] During use, the support 1 can be fixedly installed on the car roof through a fixed connecting member 6. The two rolling curtains 3 are pulled out and unfolded to respectively cover the front windshield and the rear windshield. The hooks 32 on the two rolling curtains 3 are respectively hooked on the front bumper and the rear bumper of the car. Under the action of the clockwork spring, the rolling curtains 3 are in a taut state. At this time, the rolling shaft 2 is locked by the locking member 4, so that the pulled-out length of the rolling curtain 3 is fixed and remains taut, realizing shielding sunlight outside the vehicle, thereby preventing the heat of direct sunlight from entering the vehicle interior, and having a better sunshading and heat insulation effect.

[0036] The fixed connecting member 6 between the support 1 and the vehicle can be a temporarily fixed manner, such as using a suction cup; or it can be fixed by a permanent fixing fixture, such as the fixing member of the roof rack disclosed in the patent document [Publication (Announcement) No.: CN220947805U], etc. By using a permanent one, the support 1 does not need to be removed when the vehicle is running, and when in use, the rolling curtain 3 can be directly pulled out for sunshading, which is more convenient to use.

[0037] Embodiment 2

[0038] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference is that: the vehicle sunshade device can adopt a single rolling curtain. A rolling curtain shaft is rotatably connected between two end covers. When a single rolling curtain is adopted, the support can be fixed to the trunk lid, and the rolling curtain is pulled forward to cover the engine hood to realize covering and sunshading the vehicle roof.

[0039] Embodiment 3

[0040] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference is that: the wheel surface of the locking wheel is a rough surface, and a friction plate is fixed on the side surface of the locking arm facing the locking wheel. The frictional locking when the two come into contact is realized by increasing the frictional force between the locking arm and the locking wheel, so as to realize the circumferential locking of the locking member to the rolling curtain shaft. After the knob is rotated so that the convex part of the cam is away from the sliding block, the elastic member lifts the sliding block, and after the locking arm and the locking wheel are separated, the rolling curtain shaft can rotate freely in the circumferential direction.

[0041] Embodiment 4

[0042] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference is that: a plurality of locking holes located on the same circumference are opened at the end of the rolling curtain shaft. The locking member is a plug pin shaft. A threaded section is provided in the middle of the plug pin shaft. The threaded section of the plug pin shaft is screwed to the end of the support, and the inner end of the plug pin shaft can be inserted into one of the locking holes at the end of the rolling curtain shaft. The circumferential locking of the rolling curtain shaft is realized by inserting the plug pin shaft into one of the locking holes at the end of the rolling curtain shaft.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A car sunshade device, comprising a support (1), a rolling curtain shaft (2) and a rolling curtain cloth (3) wound on the rolling curtain shaft (2), wherein the support (1) comprises end covers (13) located at both ends, and the rolling curtain shaft (2) is rotatably connected between the two end covers (13), characterized in that: A locking member (4) is provided between the support (1) and the curtain rolling shaft (2) and is capable of acting on the curtain rolling shaft (2) to lock the curtain rolling shaft (2) in a circumferential direction.

2. The automobile sunshade device according to claim 1, characterized in that: The end of the roller blind shaft (2) is fixedly connected with a locking wheel (23), the locking member (4) comprises a sliding block (41) and a locking arm (42), a sliding groove (133) is provided on the inner wall of the end cover (13) in the up-down direction, the sliding block (41) is slidably connected in the sliding groove (133), the locking arm (42) extends to the top of the locking gear, and the end cover (13) is also rotatably provided with a knob (5), the inner end of the knob (5) is fixed with a cam (51), an elastic member (43) is provided between the lower end of the sliding block (41) and the support (1), and when the knob (5) is rotated until the convex portion (511) of the cam (51) is pressed against the sliding block (41), the sliding block (41) moves downward to compress the elastic member (43), and the locking arm (42) acts on the locking wheel (23) to circumferentially lock the locking wheel (23).

3. The automobile sunshade device according to claim 2, characterized in that: The locking wheel (23) is a gear, and the locking arm (42) is provided with teeth (421) on the side facing the locking wheel (23). After the sliding block (41) moves downward, the teeth (421) on the locking arm (42) can mesh with the locking wheel (23).

4. The automobile sunshade device according to claim 2, characterized in that: The wheel surface of the locking wheel (23) is a rough surface, and a friction plate is fixed on the side of the locking arm (42) facing the locking wheel (23).

5. The automobile sunshade device according to claim 2, characterized in that: The cam (51) is symmetrically provided with protrusions (511), and a support plate (134) is provided on the inner wall of the end cover (13) above the cam (51). The support plate (134) is bent downward to form an arc shape. When one of the protrusions (511) of the cam (51) is pressed against the sliding block (41), the other protrusion (511) is pressed against the support plate (134).

6. The automobile sunshade device according to claim 1, characterized in that: The end of the roller blind shaft (2) is provided with a plurality of locking holes located on the same circumference, the locking member (4) is a latch shaft, the middle section of the latch shaft is provided with a threaded section, the threaded section of the latch shaft is screwed to the end of the support (1), and the inner end of the latch shaft can be inserted into one of the locking holes at the end of the roller blind shaft (2).

7. The automobile sunshade device according to any one of claims 1 to 6, characterized in that: Two curtain rolling shafts (2) are rotatably connected between the two end covers (13), curtain rolling fabrics (3) are respectively wound around the two curtain rolling shafts (2), and the locking member (4) can simultaneously lock the two curtain rolling shafts (2) in a circumferential direction.

8. The automobile sunshade device according to any one of claims 1 to 6, characterized in that: A limiting block (131) is provided on the end cover (13) at the front side of the rolling blind shaft (2), and the side edge of the rolling blind fabric (3) is in contact with the corresponding limiting block (131).

9. The automobile sunshade device according to any one of claims 1 to 6, characterized in that: A long strip of tension strip (31) is fixed to the outer end of the rolling curtain cloth (3), and the tension strip (31) is made of silica gel or rubber.

10. The automobile sunshade device according to any one of claims 1 to 6, characterized in that: The outer end of the rolling curtain cloth (3) is connected to a hook (32) via a connecting rope, a storage bag (33) is sewn near the outer end of the rolling curtain cloth (3), and the end of the connecting rope is sewn in the storage bag (33).

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