Sunshade curtain sag measuring mechanism
By installing three distance sensors and a moving component on the base plate of the sunshade support, combined with electric push rods and servo motor adjustment, the error problem of the sunshade sag measurement system was solved, and high-precision sag measurement was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GOLDE CHANGCHUN CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-05
AI Technical Summary
The existing sunshade curtain droop measurement system has a large measurement error, mainly due to the inconsistent support height caused by factors such as the processing error of the standard height block, insufficient rigidity of the skylight, and installation offset.
Three distance sensors are symmetrically mounted on the base plate of the sunshade support. The support height is adjusted by electric push rods and servo motors. Combined with moving components and anti-slip structures, measurement errors are eliminated, ensuring the accuracy of sag measurement of the sunshade in its free state.
This effectively reduces the impact of the support columns on the measurement of the sag value of the sunshade curtain, eliminates interference from the flatness of the placement and the zero-value coordinate setting of the sensor, and ensures the accurate measurement of the sag value of the sunshade curtain.
Smart Images

Figure CN224202449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sunshade curtain drape measurement, specifically a sunshade curtain drape measurement mechanism. Background Technology
[0002] The sag value of automotive sunroof sunshades directly or indirectly reflects issues such as the sunroof's appearance and operating noise, and has always been a necessary monitoring parameter. As automobiles increase their requirements for light-gathering area and with the application of large-area sunshades, monitoring the sag value of sunshades has become increasingly important. At the same time, automotive lightweighting requires sunroofs to also reduce weight and save energy. However, the reduction in sunroof lightweighting leads to a decrease in structural rigidity, which has a significant impact on the measurement of sunshade sag value. Therefore, there is an urgent need for a sunshade sag measurement mechanism.
[0003] Currently, existing measurement methods are prone to causing a system measurement error. This system requires the creation of a standard height block as the basis for the theoretical "0" value, with its height being H. It also ensures that the heights of the left and right supports are y1 and y2, and that z=y1=y2. During the tooling processing and installation process, there are processing errors in z, y1, and y2. In addition, the deformation caused by the insufficient rigidity of the sunroof itself, as well as the slight offset of the sunroof's placement, will exacerbate the inconsistency between z, y1, and y2. All of these factors lead to a problem of large measurement error in the entire system. Summary of the Invention
[0004] The purpose of this utility model is to provide a sunshade curtain droop measurement mechanism to solve the problem that the existing measurement method mentioned in the background art is prone to causing a system measurement error. The system needs to make a standard height block as the basis for the theoretical "0" value, the height of which is H, and ensure that the heights of the left and right supports are y1 and y2, and z=y1=y2. During the tooling processing and installation process, there are processing errors in z, y1, and y2. In addition, the deformation caused by the insufficient rigidity of the sunshade itself and the slight offset of the sunshade placement will exacerbate the inconsistency of z, y1, and y2. All of the above lead to a large measurement error problem in the entire system.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sunshade curtain droop measuring mechanism, comprising a simulated car sunroof, a sunshade curtain body disposed at the bottom of the simulated car sunroof, electric push rods disposed at the four corners of the bottom of the simulated car sunroof, a support column disposed at the bottom end of the electric push rod, a connecting base plate disposed at the bottom end of the support column, a supporting base plate disposed at the bottom of the connecting base plate, three distance sensors linearly distributed on the top of the supporting base plate, and symmetrically disposed support bases on both sides of the bottom of the supporting base plate, with moving components symmetrically disposed on the support bases.
[0006] Preferably, the movable component includes a mounting slot, and lifting cylinders are symmetrically arranged inside the mounting slot. A support foot pad is provided at the bottom end of the lifting cylinder, and anti-slip protrusions are evenly arranged on the bottom of the support foot pad.
[0007] Preferably, a rotating bracket is rotatably provided on the other side of the support base, a movable roller is provided at the bottom of the rotating bracket, and the top of the rotating bracket is rotatably connected to the support base by a rotating pin.
[0008] Preferably, a first gear is provided on the top inner wall of the rotating bracket, the first gear is fixedly connected to one end of the rotating pin, and a second gear is meshed with one side of the first gear.
[0009] Preferably, a mounting bracket is provided on the other side of the support base, and a servo motor is provided on the inner wall of the mounting bracket. The drive end of the servo motor is connected and fixed to the second gear.
[0010] Preferably, the mounting slot is located on one side of the support base, and the limiting blocks are located on both sides of the rotating bracket.
[0011] Preferably, the four corners of the support base plate are connected and fixed to the support base by fastening bolts.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This sunshade curtain sag measurement mechanism uses a fixing device to secure the sunshade curtain body to a simulated car sunroof, facilitating sag measurement. A connecting base plate secures the support column to the base plate, and an electric push rod allows for easy raising and lowering of the simulated car sunroof, facilitating height adjustment. A distance sensor for sag measurement is installed in the middle of the base plate, with additional distance sensors on both sides for horizontal measurement of the simulated car sunroof support height. This allows for easy adjustment of the electric cylinder support to maintain the simulated car sunroof in a horizontal state. The interrelationship of the three sensor measurements eliminates system measurement errors, reduces the influence of the support column on the sag measurement, and eliminates interference from flatness and sensor "zero value" coordinate settings, ensuring sag measurement in the "free state" of the sunshade curtain.
[0014] 2. The sunshade curtain droop measuring mechanism connects the support base to the support plate with fastening bolts. When the device is fixed, it is supported by anti-slip pads and anti-slip protrusions. When the device needs to be moved, the lifting cylinder raises the device, the servo motor drives the second gear to rotate, and the second gear drives the first gear to rotate, thus adjusting the rotation of the rotating bracket. The limiting block limits the rotation of the rotating bracket, allowing for convenient and flexible control of the horizontal and vertical state of the moving roller. When the moving roller is perpendicular to the support base, the lifting cylinder retracts, causing the support pads to retract into the mounting slots, and the moving roller lands on the ground, facilitating the movement of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the bottom structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the mobile component of this utility model;
[0018] Figure 4 This is a schematic diagram of the bottom structure of the movable component of this utility model.
[0019] In the diagram: 1. Simulated car sunroof; 2. Sunshade body; 3. Electric push rod; 4. Support column; 5. Connecting base plate; 6. Support base plate; 7. Distance sensor; 8. Fastening bolt; 9. Support base; 10. Moving component; 101. Mounting slot; 102. Lifting cylinder; 103. Support foot pad; 104. Anti-slip protrusion; 105. Rotating bracket; 106. Moving roller; 107. Rotating pin; 108. First gear; 109. Second gear; 110. Servo motor; 111. Mounting bracket; 112. Limiting block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4This utility model provides a technical solution: a sunshade curtain sag measuring mechanism, including a simulated car sunroof 1, a sunshade curtain body 2 at the bottom of the simulated car sunroof 1, electric push rods 3 at the four corners of the bottom of the simulated car sunroof 1, a support column 4 at the bottom end of the electric push rod 3, a connecting base plate 5 at the bottom end of the support column 4, a supporting base plate 6 at the bottom of the connecting base plate 5, three linearly distributed distance sensors 7 at the top of the supporting base plate 6, symmetrically arranged support bases 9 on both sides of the bottom of the supporting base plate 6, and symmetrically arranged moving components 10 on the support bases 9. The four corners of the supporting base plate 6 are connected and fixed to the support bases 9 by fastening bolts 8. The sunshade curtain body 2 is installed and fixed to the simulated car sunroof 1 by fasteners, facilitating the sag measurement of the sunshade curtain body 2. The connecting base plate 5 fixes the support column 4 to the supporting base plate 6. The electric push rods 3 facilitate the raising and lowering of the simulated car sunroof 1, making it easy to adjust the height of the support. A device for measuring the sag of the sunshade curtain body 2 is installed in the middle of the supporting base plate 6. Distance sensors 7 for measuring sag are added on both sides to facilitate horizontal measurement of the support height of the simulated car sunroof 1. This allows for easy adjustment of the electric cylinder support to maintain the simulated car sunroof 1 in a horizontal state. The correlation between the measurements of the three sensors can eliminate system measurement errors, reduce the influence of the support column 4 on the measurement of the sunshade sag value, and eliminate interference from placement flatness and sensor "zero value" coordinate settings. This ensures the measurement of the sag value of the sunshade in its "free state." Three distance measurement sensors are used: the two side sensors measure the height of the highest point of the sunshade edge, eliminating the influence of the support height on the left and right sides and fitting the highest point in the middle of the sunshade; the middle sensor measures the height of the lowest point of the sunshade. The sag value of the sunshade can be obtained by subtracting the height of the lowest point of the sunshade from the height of the two side highest points. The three sensors can use a single flat plate of the simulated car sunroof 1 for a unified "zero value" setting, which eliminates errors caused by the machining accuracy and placement position of the standard height block.
[0022] The movable component 10 includes a mounting slot 101, which is located on one side of the support base 9. A lifting cylinder 102 is symmetrically arranged inside the mounting slot 101. A support foot 103 is located at the bottom of the lifting cylinder 102, and anti-slip protrusions 104 are evenly distributed on the bottom of the support foot 103. A rotating bracket 105 is rotatably mounted on the other side of the support base 9. A moving roller 106 is located at the bottom of the rotating bracket 105. The top of the rotating bracket 105 is rotatably connected to the support base 9 via a rotating pin 107. A first gear 108 is located on the inner wall of the top of the rotating bracket 105, and the first gear 108 is fixedly connected to one end of the rotating pin 107. A second gear 109 is meshed with one side of the first gear 108. A mounting bracket 111 is located on the other side of the support base 9, and a servo motor 11 is located on the inner wall of the mounting bracket 111. The drive end of the servo motor 110 is connected and fixed to the second gear 109. The limiting block 112 is set on both sides of the rotating bracket 105. The support base 9 is connected to the support base plate 6 by the fastening bolt 8. When the device is fixed, the support foot pad 103 cooperates with the anti-slip protrusion 104 to provide anti-slip support. When the device needs to be moved, the lifting cylinder 102 lifts the device. The servo motor 110 drives the second gear 109 to rotate. The second gear 109 drives the first gear 108 to rotate, and the rotating bracket 105 is rotated and adjusted. The limiting block 112 limits the rotating bracket 105, which facilitates flexible control of the horizontal and vertical state of the moving roller 106. When the moving roller 106 is perpendicular to the support base 9, the lifting cylinder 102 retracts and drives the support foot pad 103 to retract into the mounting slot 101. The moving roller 106 lands on the ground, which facilitates the movement of the device.
[0023] Working Principle: First, the sunshade body 2 is fixed to the simulated car sunroof 1 via fasteners, facilitating sag measurement of the sunshade body 2. The connecting base plate 5 fixes the support column 4 to the support base plate 6. The electric push rod 3 facilitates raising and lowering the simulated car sunroof 1, allowing for easy adjustment of the support height. A distance sensor 7 for measuring sag is installed in the middle of the support base plate 6, with another distance sensor 7 added on each side to facilitate horizontal measurement of the simulated car sunroof 1's support height. This allows for easy adjustment of the electric cylinder support to maintain the simulated car sunroof 1 in a horizontal state. The interrelationship of the three sensor measurements eliminates system measurement errors, reduces the influence of the support column 4 on the sunshade sag measurement, and eliminates interference from placement flatness and sensor "zero value" coordinate settings, ensuring sag measurement in the "free state" of the sunshade. Three distance measurement sensors are used: the two side sensors measure the height of the highest point of the sunshade edge, eliminating the influence of the left and right side support heights and fitting the highest point of the sunshade in the middle; the middle sensor measures the height of the lowest point of the sunshade. The sag value of the sunshade can be obtained by subtracting the height of the lowest point of the sunshade from the height of the highest point on both sides. The three sensors can be uniformly set to "zero value" using a single flat plate 1 simulating a car sunroof. This eliminates errors caused by the machining accuracy and placement of the standard height block. The support base 9 is connected to the support plate 6 by fastening bolts 8. When the device is fixed, anti-slip support is provided by support feet 103 and anti-slip protrusions 104. When the device needs to be moved, it is raised by lifting cylinder 102. Servo motor 110... The second gear 109 is driven to rotate, which in turn drives the first gear 108 to rotate, thus adjusting the rotation of the rotating bracket 105. The rotating bracket 105 is limited by the limiting block 112, which facilitates flexible control of the horizontal and vertical state of the moving roller 106. When the moving roller 106 is perpendicular to the support base 9, the lifting cylinder 102 retracts, causing the support foot pad 103 to retract into the mounting slot 101. The moving roller 106 lands on the ground, facilitating the movement of the device. This completes the operation process of a sunshade curtain droop measurement mechanism.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sunshade curtain drape measuring mechanism, characterized in that, The device includes a simulated car sunroof (1), with a sunshade body (2) at the bottom of the simulated car sunroof (1), electric push rods (3) at the four corners of the bottom of the simulated car sunroof (1), a support column (4) at the bottom of the electric push rod (3), a connecting base plate (5) at the bottom of the supporting column (4), a support base plate (6) at the bottom of the connecting base plate (5), three distance sensors (7) arranged linearly at the top of the support base plate (6), and support bases (9) symmetrically arranged on both sides of the bottom of the support base plate (6). Moving components (10) are symmetrically arranged on the support bases (9).
2. The sunshade curtain drape measuring mechanism according to claim 1, characterized in that: The moving component (10) includes a mounting slot (101), and a lifting cylinder (102) is symmetrically arranged inside the mounting slot (101). A support foot pad (103) is provided at the bottom end of the lifting cylinder (102), and anti-slip protrusions (104) are evenly arranged at the bottom of the support foot pad (103).
3. The shading curtain drape measuring mechanism according to claim 1, characterized in that: A rotating bracket (105) is rotatably provided on the other side of the support base (9). A movable roller (106) is provided at the bottom of the rotating bracket (105). The top of the rotating bracket (105) is rotatably connected to the support base (9) by a rotating pin (107).
4. The sunshade curtain drape measuring mechanism according to claim 3, characterized in that: The top inner wall of the rotating bracket (105) is provided with a first gear (108), which is fixedly connected to one end of the rotating pin (107), and a second gear (109) is meshed with one side of the first gear (108).
5. The sunshade curtain drape measuring mechanism according to claim 1, characterized in that: A mounting bracket (111) is provided on the other side of the support base (9). A servo motor (110) is provided on the inner wall of the mounting bracket (111). The drive end of the servo motor (110) is connected and fixed to the second gear (109).
6. The sunshade curtain drape measuring mechanism according to claim 2, characterized in that: The mounting slot (101) is located on one side of the support base (9), and the limiting block (112) is located on both sides of the rotating bracket (105).
7. The sunshade curtain drape measuring mechanism according to claim 1, characterized in that: The four corners of the support base plate (6) are connected and fixed to the support base (9) by fastening bolts (8).