CN210026976U - Draw formula sunshade screen that stops promptly - Google Patents
Draw formula sunshade screen that stops promptly Download PDFInfo
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- CN210026976U CN210026976U CN201920453562.XU CN201920453562U CN210026976U CN 210026976 U CN210026976 U CN 210026976U CN 201920453562 U CN201920453562 U CN 201920453562U CN 210026976 U CN210026976 U CN 210026976U
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- curtain cloth
- gear
- rotating shaft
- sunshade
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Abstract
The utility model relates to a draw formula sunshade screen that stops promptly. The sunshade curtain comprises a reel, a cross beam and curtain cloth, wherein the reel is arranged in an installation frame, a connecting rod mechanism is arranged between the installation frame and the cross beam, frictional resistance is arranged between connecting rods riveted with each other through the connecting rod mechanism, the cross beam moves to drag the curtain cloth to move, the reel is wound or unfolded, and the curtain cloth is stopped at any position due to the frictional resistance between the connecting rods riveted with each other. The curtain cloth can realize the balance of force by controlling the frictional resistance between the connecting rods in the process of unfolding (pulling down) or rolling (lifting), so that the curtain cloth can stay at any position. The utility model discloses a sunshade screen does not adopt the cooperation form of traditional plectrum and the teeth of a cogwheel, and what adopt is link mechanism, in the motion process, can not produce big impact force, operates steadily, can not produce the impact sound, and no stay cord hinders driver's sight, improves driver and crew's travelling comfort. The utility model discloses a sunshade screen simple to operate, curtain cloth drop-down, retrieve and can not appear the jamming phenomenon.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a pull-stop sunshade curtain.
Background
At present, most of automobile (especially commercial vehicle) indoor front windshield glass/side window glass sunshade curtains generally adopt ratchet pawl type pull ropes or ball self-locking structures to realize the curtain cloth furling function, such as: chinese patent (CN207088931U) discloses a commercial truck sunshade assembly, comprises coiler, support arm, curtain cloth, metal pole, pull rod, fixed bolster and recovery stay cord, and through the cooperation of the inside plectrum of coiler and teeth of a cogwheel, the realization sunshade stops promptly, adapts to different size user's individualized demand. When the curtain cloth is furled, the structure has larger impact sound and operation discomfort caused by overhigh releasing speed of the mechanism, and generally can only realize the instant drawing and stopping in the process of drawing down (curtain cloth spreading) and can not realize the stop at any position in the process of lifting (rolling) the curtain cloth.
Disclosure of Invention
In order to solve the problems, the invention provides the sunshade curtain which is pulled and stopped immediately, can realize the stop at any position in the unfolding or rolling process of the curtain cloth, and can not generate impact sound in the operation process.
The technical scheme adopted by the invention is as follows: the utility model provides a draw formula sunshade screen that stops promptly, includes reel ware and crossbeam, and sets up the curtain cloth between reel ware and crossbeam, its characterized in that: the winding shaft device is arranged in the mounting frame, the connecting rod mechanism is arranged between the mounting frame and the cross beam, the damping device is arranged between connecting rods of the connecting rod mechanism, the cross beam moves to drag curtain cloth to move, the winding shaft device is wound or unfolded, the connecting rod mechanism is furled or unfolded, and the curtain cloth can be stopped at any position by the damping device.
Preferably, the link mechanism is a four-bar link mechanism and comprises a first link, a second link, a third link and a fourth link, the upper end of the first link is connected with the mounting frame, the lower end of the first link is riveted with the upper end of the third link, and the lower end of the third link is connected with the cross beam; the upper end of the second connecting rod is connected with the mounting frame, the lower end of the second connecting rod is riveted with the upper end of a fourth connecting rod, and the lower end of the fourth connecting rod is connected with the cross beam; and the riveting part of the lower end of the first connecting rod and the upper end of the third connecting rod is provided with frictional resistance, and the riveting part of the lower end of the second connecting rod and the upper end of the fourth connecting rod is provided with frictional resistance, so that the curtain cloth can stay at any position.
Further, the damping device comprises a first gear arranged at the upper end of the first connecting rod and a second gear arranged at the upper end of the third connecting rod, and the first gear and the second gear are both arranged on the mounting frame and are meshed with each other; resistance formed by mutual meshing of the first gear and the second gear, friction resistance formed by the riveting position of the lower end of the first connecting rod and the upper end of the third connecting rod, and friction resistance formed by the riveting position of the lower end of the second connecting rod and the upper end of the fourth connecting rod jointly act to enable the curtain cloth to stay at any position.
Preferably, the link mechanisms are symmetrically arranged corresponding to the central line of the sun shade.
Further, the upper end of the first connecting rod is arranged on the mounting frame through a first gear, the upper end of the third connecting rod is arranged on the mounting frame through a second gear, and the first gear and the second gear are meshed with each other.
Furthermore, gaskets are arranged between the first connecting rod and the third connecting rod and between the second connecting rod and the fourth connecting rod, the first connecting rod, the gaskets and the third connecting rod are riveted together through rivets, and the second connecting rod, the gaskets and the fourth connecting rod are riveted together through rivets.
Preferably, the reel comprises a rotating shaft, a torsion spring arranged in the rotating shaft, a left connecting seat and a right connecting seat which are arranged at two ends of the rotating shaft, the left connecting seat is fixedly connected with the mounting frame, the left connecting seat extends into the rotating shaft from one end of the rotating shaft and is fixedly connected with one end of the torsion spring, the other end of the torsion spring is fixed with a fixed terminal, and the fixed terminal rotates along with the rotating shaft; the right connecting seat is fixedly connected with the mounting rack and extends into the mounting rack from the other end of the rotating shaft.
Preferably, rotating shaft end sleeves which rotate along with the rotating shaft are arranged between the left connecting seat and the rotating shaft inner wall, and damping grease is arranged between the left connecting seat and the rotating shaft inner wall and between the right connecting seat and the rotating shaft end sleeves.
Furthermore, a handle is arranged on the cross beam, and the connecting positions of the second connecting rod and the fourth connecting rod with the cross beam are arranged at the handle.
Furthermore, a limiting boss is arranged on the handle and arranged on the inner sides of the second connecting rod and the fourth connecting rod.
Furthermore, the second connecting rod and the fourth connecting rod are abutted against the limiting lug boss, the curtain cloth is unfolded to the limit position, and the first gear and the second gear are in a meshed self-locking state.
The beneficial effects obtained by the invention are as follows: and a connecting rod mechanism is arranged between the mounting frame and the cross beam, and the function of immediate pull and immediate stop is realized through the friction resistance between connecting rods riveted with each other by the connecting rod mechanism, gear engagement and damping inside the reel device. The curtain cloth can realize the balance of force by controlling the frictional resistance between the connecting rods in the process of unfolding (pulling down) or rolling (lifting), so that the curtain cloth can stay at any position. The sun-shading curtain does not adopt the traditional matching form of the plectrum and the gear teeth, adopts the link mechanism, does not generate large impact force in the movement process, runs stably, does not generate impact sound, does not have pull ropes to obstruct the sight of a driver, and improves the comfort of drivers and passengers. The sunshade curtain is convenient to install, and the clamping phenomenon cannot occur when the curtain cloth is pulled down and recovered.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is a schematic view of the linkage mechanism as the curtain is opened to the maximum position;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a cross-sectional view C-C of FIG. 5;
FIG. 8 is a cross-sectional view E-E of FIG. 7;
FIG. 9 is a cross-sectional view D-D of FIG. 5;
FIG. 10 is a partial enlarged view of the position a of FIG. 5;
FIG. 11 is a schematic view of the linkage mechanism with the curtain open to the maximum position; (ii) a
FIG. 12 is a schematic view of the structure of the limiting boss on the handle;
reference numerals: 1. mounting bracket, 11, cushion, 12, pin, 2, crossbeam, 21, handle, 22, spacing boss, 23, rivet, 3, curtain cloth, 41, pivot, 42, torsional spring, 421, torsion spring cover, 43, pivot pot head, 44, left connecting seat, 45, damping grease, 46, fixed terminal, 47, right connecting seat, 5, link mechanism, 51, first connecting rod, 52, second connecting rod, 53, third connecting rod, 54, fourth connecting rod, 55, rivet, 56, first gear, 57, second gear, 58, packing ring.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in fig. 1-2, the pull-stop sunshade curtain of the present invention is installed at the front windshield and the side windshield in a vehicle, and comprises an installation frame 1, a cross beam 2, a curtain cloth 3 and a reel device, wherein the installation frame 1 is fixed on the vehicle body, and the reel device is arranged in the installation frame 1; the crossbeam 2 sets up in the below of mounting bracket 1, is equipped with link mechanism 5 between mounting bracket 1 and the crossbeam 2, is equipped with curtain cloth 3 between crossbeam 2 and the spool ware 4, and the upper end of curtain cloth 3 is glued and is pasted on the pivot 41 of spool ware, and the lower extreme of curtain cloth 3 is fixed in the draw-in groove of crossbeam 2. Frictional resistance is arranged between the connecting rods riveted with each other by the connecting rod mechanisms 5, the curtain cloth 3 is dragged by the cross beam 2 to move, the reel is wound or unwound, and the curtain cloth 3 stays at any position by the frictional resistance between the connecting rods riveted with each other. In this embodiment, the damping device is a frictional resistance formed between the links riveted to each other, so that the curtain cloth 3 stays at any position.
As shown in figures 3-12, the link mechanism 5 of the invention is symmetrically arranged relative to the central line of the sunshade curtain, so that when the curtain cloth 3 is dragged by the cross beam 2 to move, the sunshade curtain can be stressed in balance and moves stably.
In this embodiment, the link mechanism 5 is a four-bar link mechanism, and includes a first link 51, a second link 52, a third link 53 and a fourth link 54, the first link 51, the second link 52, the third link 53 and the fourth link 54 are combined into a diamond-like link structure, the upper end of the first link 51 is connected with the mounting frame 1, the lower end of the first link 51 is riveted with the upper end of the third link 53, and the lower end of the third link 53 is connected with the cross beam 2; the upper end of the second connecting rod 52 is connected with the mounting rack 1, the lower end of the second connecting rod is riveted with the upper end of the fourth connecting rod 54, and the lower end of the fourth connecting rod 54 is connected with the cross beam 2; the riveting part of the lower end of the first connecting rod 51 and the upper end of the third connecting rod 53 is provided with friction resistance, and the riveting part of the lower end of the second connecting rod 52 and the upper end of the fourth connecting rod 54 is provided with friction resistance, so that the curtain cloth 3 can stay at any position.
As shown in fig. 5, 7, 8 and 11, the upper end of the first link 51 is disposed on the mounting bracket 1 through a first gear 56, the upper end of the third link 53 is disposed on the mounting bracket 1 through a second gear 57, and the first gear 56 and the second gear 57 are engaged with each other. When the device is installed, the upper end of the first connecting rod 51 is fixed with the first gear 56, and the upper end of the third connecting rod 53 is fixed with the second gear 57; the first gear 56 and the washer 58, and the second gear 57 and the washer 58, are symmetrically riveted in the mounting bracket 1 (symmetrically with respect to the center line of the mounting bracket) by the pin 12, while the spacer 11 is placed outside the mounting bracket 1 for riveting. In this embodiment, the damping device is a resistance formed by the mutual engagement of the first gear 56 and the second gear 57, a frictional resistance formed by the riveting between the lower end of the first link 51 and the upper end of the third link 53, and a frictional resistance formed by the riveting between the lower end of the second link 52 and the upper end of the fourth link 54, which cooperate to stop the curtain fabric 3 at any position.
The first gear and the second gear are arranged on the mounting frame and are meshed with each other; the resistance force formed by the mutual meshing of the first gear and the second gear,
as shown in fig. 5, 9 and 11, a washer 58 is provided between the first link 51 and the third link 53, and between the second link 52 and the fourth link 54. The first link 51, the washer 58 and the third link 53 are riveted together by the rivet 55 to form a crank arm; the second link 52, washer 58 and fourth link 54 are riveted together by rivet 55 to form a crank arm, both of which are symmetrically disposed. Through practical experience, if the two connecting rods are directly riveted, the washer 58 is not adopted, and the two connecting rods are easy to clamp when moving relatively because the force balance is achieved through the friction resistance between the connecting rods, and the service life of the connecting rods is influenced.
Combine shown in fig. 3 and 4, the spool ware includes pivot 41, torsional spring 42, left connecting seat 44 and right connecting seat 47, and left connecting seat 44 is fixed at the left end of mounting bracket 1, and right connecting seat 47 is fixed at the right-hand member of mounting bracket 1, and pivot 41 sets up in mounting bracket 1, and torsional spring 42 overlaps through torsional spring cover 421 and establishes in pivot 41. The left connecting seat 44 extends into from the left end of the rotating shaft 41 and is fixedly connected with one end of the torsion spring 42, the other end of the torsion spring 42 is fixed with the fixed terminal 46, the fixed terminal 46 rotates along with the rotating shaft 41, and the right connecting seat 47 extends into from the right end of the rotating shaft 41. The left connecting seat 44 and the right connecting seat 47 play a role in supporting the reel device, when the curtain cloth 3 is dragged by the cross beam 2 to move, the rotating shaft 41 rotates, the fixed terminal 46 drives the right end of the torsion spring 42 to rotate, the left end of the torsion spring 42 is fixed with the left connecting seat 44 and does not rotate, and the torsion spring 42 is twisted and deformed. In this embodiment, the rotating shaft end sleeves 43 rotating along with the rotating shaft 41 are respectively arranged between the left connecting seat 44 and the right connecting seat 47 and the inner wall of the rotating shaft 41, and the damping grease 45 is arranged between the inner walls of the rotating shaft end sleeves 43 and the left connecting seat 44 and the right connecting seat 47, so that the winding speed of the curtain cloth 3 can be effectively reduced. In this embodiment, the damping device is a resistance formed by the mutual engagement of the first gear 56 and the second gear 57, a frictional resistance formed by the riveting position of the lower end of the first link 51 and the upper end of the third link 53, a frictional resistance formed by the riveting position of the lower end of the second link 52 and the upper end of the fourth link 54, and a resistance generated by the damping grease 45 during the rotation of the rotating shaft 41, which cooperate to stop the curtain cloth 3 at any position.
As shown in fig. 5, 10 and 11, a handle 21 is provided on the outside of the cross beam 2, the second link 52 and the fourth link 54 are hinged at the position of the handle 21 of the cross beam 2 by a rivet 23, a limit boss 22 is provided on the handle 21, and the limit boss 22 is provided on the inner side of the second link 52 and the fourth link 54. When the curtain cloth 3 is opened (unfolded) to the maximum design position (pulled down to the limit position in the figure), the limit boss 22 on the handle 21 limits the pull-down stroke of the second connecting rod 52 and the fourth connecting rod 54, and simultaneously, the first gear 56 and the second gear 57 are also in the meshing limit position (meshing self-locking state), so that the crank arm formed by hinging the first connecting rod and the third connecting rod and the crank arm formed by hinging the second connecting rod and the fourth connecting rod are in the dead point position, and the handle 21 is effectively prevented from being pulled down to exceed the design stroke.
The sun-shading curtain realizes the stress balance of the sun-shading curtain at any position, namely the function of stopping when being pulled, by utilizing the friction force of gear engagement and crank arm riveting and the damping structure in the rolling device and the rolling force and gravity (mainly the gravity of a cross beam) of the rolling device. The sun-shading curtain is convenient to install, the clamping stagnation phenomenon cannot occur when the curtain cloth is pulled down and recovered, the curtain cloth can stay at any position, and the impact sound cannot be generated when the curtain cloth is recovered.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a draw promptly and stop formula sunshade screen, includes reel ware and crossbeam (2), and sets up curtain cloth (3) between reel ware and crossbeam (2), its characterized in that: the utility model discloses a winding shaft device, including mounting bracket (1), crossbeam (2), damping device, reel ware sets up in mounting bracket (1), be equipped with link mechanism (5) between mounting bracket (1) and crossbeam (2), be equipped with damping device between the connecting rod of link mechanism (5), crossbeam (2) motion drags curtain cloth (3) motion, the winding shaft device rolling or expansion, link mechanism (5) draw in or expand, damping device can make curtain cloth (3) stop in the optional position.
2. The pull-stop sunshade of claim 1, wherein: the connecting rod mechanism (5) adopts a four-connecting-rod mechanism and comprises a first connecting rod (51), a second connecting rod (52), a third connecting rod (53) and a fourth connecting rod (54), the upper end of the first connecting rod (51) is connected with the mounting frame (1), the lower end of the first connecting rod is riveted with the upper end of the third connecting rod (53), and the lower end of the third connecting rod (53) is connected with the cross beam (2); the upper end of the second connecting rod (52) is connected with the mounting frame (1), the lower end of the second connecting rod is riveted with the upper end of a fourth connecting rod (54), and the lower end of the fourth connecting rod (54) is connected with the cross beam (2); the riveting part of the lower end of the first connecting rod (51) and the upper end of the third connecting rod (53) is provided with frictional resistance, and the riveting part of the lower end of the second connecting rod (52) and the upper end of the fourth connecting rod (54) is provided with frictional resistance, so that the curtain cloth (3) can stay at any position.
3. The pull-stop sunshade of claim 2, wherein: the damping device comprises a first gear (56) arranged at the upper end of the first connecting rod (51) and a second gear (57) arranged at the upper end of the third connecting rod (53), and the first gear (56) and the second gear (57) are both arranged on the mounting frame (1) and are meshed with each other; resistance formed by mutual meshing of the first gear (56) and the second gear (57), friction resistance formed by the riveting position of the lower end of the first connecting rod (51) and the upper end of the third connecting rod (53), and friction resistance formed by the riveting position of the lower end of the second connecting rod (52) and the upper end of the fourth connecting rod (54) jointly act to enable the curtain cloth (3) to stay at any position.
4. The pull-stop sunshade of claim 2, wherein: the connecting rod mechanisms (5) are symmetrically arranged relative to the central line of the sun-shading curtain.
5. The pull-stop sunshade of claim 3, wherein: gaskets (58) are arranged between the first connecting rod (51) and the third connecting rod (53) and between the second connecting rod (52) and the fourth connecting rod (54), the first connecting rod (51), the gaskets (58) and the third connecting rod (53) are riveted together through rivets (55), and the second connecting rod (52), the gaskets (58) and the fourth connecting rod (54) are riveted together through rivets (55).
6. The pull-stop sunshade of claim 1, wherein: the shaft winder comprises a rotating shaft (41), a torsion spring (42) arranged in the rotating shaft (41), a left connecting seat (44) and a right connecting seat (47) which are arranged at two ends of the rotating shaft, wherein the left connecting seat (44) is fixedly connected with the mounting rack (1), the left connecting seat (44) extends into one end of the rotating shaft (41) and is fixedly connected with one end of the torsion spring (42), the other end of the torsion spring (42) is fixed with a fixed terminal (46), and the fixed terminal (46) rotates along with the rotating shaft (41); the right connecting seat (47) is fixedly connected with the mounting rack (1) and extends into the mounting rack from the other end of the rotating shaft (41).
7. The pull-stop sunshade of claim 6, wherein: and rotating shaft end sleeves (43) which rotate along with the rotating shaft (41) are arranged between the inner walls of the left connecting seat (44), the right connecting seat (47) and the rotating shaft (41), and damping grease (45) is arranged between the inner walls of the left connecting seat (44), the right connecting seat (47) and the rotating shaft end sleeves (43).
8. The pull-stop sunshade of claim 3, wherein: the cross beam (2) is provided with a handle (21), and the connecting positions of the second connecting rod (52) and the fourth connecting rod (54) and the cross beam (2) are arranged at the handle (21).
9. The pull-stop sunshade of claim 8, wherein: the handle (21) is provided with a limiting boss (22), and the limiting boss (22) is arranged on the inner sides of the second connecting rod (52) and the fourth connecting rod (54).
10. The pull-stop sunshade of claim 9, wherein: the second connecting rod (52) and the fourth connecting rod (54) are abutted against the limiting boss (22), the curtain cloth (3) is unfolded to the limit position, and the first gear (56) and the second gear (57) are in a meshed self-locking state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453562.XU CN210026976U (en) | 2019-04-04 | 2019-04-04 | Draw formula sunshade screen that stops promptly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453562.XU CN210026976U (en) | 2019-04-04 | 2019-04-04 | Draw formula sunshade screen that stops promptly |
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| Publication Number | Publication Date |
|---|---|
| CN210026976U true CN210026976U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920453562.XU Active CN210026976U (en) | 2019-04-04 | 2019-04-04 | Draw formula sunshade screen that stops promptly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968952A (en) * | 2019-04-04 | 2019-07-05 | 武汉凯沃森天窗系统有限公司 | A kind of stopping while pulling formula sunshade |
| CN111483299A (en) * | 2020-04-24 | 2020-08-04 | 江铃重型汽车有限公司 | Sunshade roller shutter structure and vehicle |
-
2019
- 2019-04-04 CN CN201920453562.XU patent/CN210026976U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968952A (en) * | 2019-04-04 | 2019-07-05 | 武汉凯沃森天窗系统有限公司 | A kind of stopping while pulling formula sunshade |
| CN111483299A (en) * | 2020-04-24 | 2020-08-04 | 江铃重型汽车有限公司 | Sunshade roller shutter structure and vehicle |
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