Electric windshield mechanism

Abstract

According to the electric windshield mechanism, a rack section is buried in a guide rail, and an opening of the guide rail faces downwards, so that a rack is not prone to making contact with sundries, and abrasion is not prone to being generated. The driving block assembly can surround the guide rail and then move up and down on the guide rail, and the guide rail can serve as the meshing position of the gear and the rack and can guide the driving block assembly to move in the direction of the guide rail at the same time. And the structure in the opening of the guide rail can be matched with the upper shell of the driving block, so that other motions except the motion in the main direction of the driving block assembly are limited. The gear and the rack are horizontally meshed, the structure is compact, and installation is easy. Main components such as a motor and a driving gear are all installed in the driving block assembly and do not make contact with the external environment, the service life is prolonged, the guide rail is installed on the installation bottom plate in an offset mode, the installation size after the driving block assembly and the guide rail are installed in a matched mode is reduced, the driving block assembly does not protrude out of the installation bottom plate, and the installation size is reduced.

Description

Technical Field

[0001] The present invention relates to a component that is unique to a bicycle and not included in other categories, and in particular to a windshield. Background Art

[0002] During riding, the windshield can block the wind blowing towards the rider and improve the rider's riding experience. However, different riders have different heights and need the windshield to be raised to different heights. Currently, most windshields are fixed structures and cannot adjust the height of the windshield, so the rider's riding experience cannot be personalized.

[0003] There are also windshield mechanisms that can automatically rise and fall in the prior art, such as the "An electric vehicle windshield lifting mechanism" in announcement number CN220842796U, which drives the lifting seat up and down on the fixed seat through gears. However, its design has poor stability. The meshing method of the gear and the rack it adopts is easy to get stuck or produce obvious vibration when the moving seat moves up and down, and important components such as the motor and the gear rack are exposed to the outside and need frequent maintenance. Summary of the invention

[0004] The purpose of the present invention is to provide a liftable windshield mechanism, which ensures that the windshield mechanism moves smoothly during the lifting process, and no obvious shaking or jittering occurs in the horizontal, longitudinal and vertical directions during the lifting process. Another purpose of the present invention is to make the overall structure of the windshield mechanism compact and the installation volume small. The components installed by the present invention are small, and the matching structure is specifically embodied in the special design of the components rather than the combination of more components. Therefore, the installation is simple and the transmission efficiency is high. A further purpose of the present invention is to protect the main components of the windshield mechanism, reduce wear, extend the service life of the windshield mechanism, and improve the reliability of the windshield mechanism.

[0005] The present invention achieves the above technical objectives through the following technical means.

[0006] An electric windshield mechanism comprises a mounting base plate, an opening is provided in the middle of the mounting base plate, a guide rail is fixedly mounted on the mounting base plate, the guide rail is connected to a driving block assembly, a motor and a driving gear are provided in the driving assembly for transmission connection, at least one rack segment is provided in the guide rail, and the driving gear and the rack segment are meshed.

[0007] The driving block upper shell of the driving block assembly and the windshield connecting plate surround the guide rail.

[0008] Furthermore, the driving block assembly is composed of the windshield connecting plate, the driving block upper shell and the driving block lower shell stacked together, and a driving gear is provided between the driving block upper shell and the driving block lower shell.

[0009] Preferably, the guide rail is in the shape of a handle, and both ends of the guide rail are end mounting points, and the end mounting points are fixedly mounted to the upper and lower ends of the mounting base plate, and the thickness of the end mounting points is greater than the thickness of the middle section of the guide rail.

[0010] Furthermore, the middle portion of the guide rail is a middle section of the guide rail of uniform size, and the position of the middle section of the guide rail toward the drive block assembly is a disc-shaped structure, and a rack segment shell wall and a drive block matching shell wall are respectively provided on both sides of the disc-shaped structure, and a rack segment is provided near the rack segment shell wall and is spaced and arranged parallel to the rack segment shell wall.

[0011] The teeth of the rack segment face toward the driving block and engage with the housing wall.

[0012] Furthermore, a first movable guide section is provided at the middle upper end of the position where the upper shell of the driving block cooperates with the guide rail, one side of the first movable guide section is a first guide rail cooperation section, and the upper shell of the driving block is also provided with a third movable guide section separated from the first guide rail cooperation section by a strip-shaped gap, and the driving block cooperation shell wall is embedded in the gap.

[0013] The other side of the first moving guide section is an upper limit of the rack section and cooperates with the rack section.

[0014] Preferably, a second movable guide section is provided at the lower end of the upper shell of the driving block, one side of the second movable guide section is a second guide rail matching section, and a fourth movable guide section is provided on the upper shell of the driving block to cooperate with the second movable guide section to guide the driving block to match the shell wall.

[0015] The other side of the second moving guide section is a lower limit of the rack section and cooperates with the rack section.

[0016] Preferably, a fifth moving guide section and a limiting contact are provided on one side of the upper shell of the driving block from top to bottom, and the fifth moving guide section and the limiting contact cooperate with the outer side of the shell wall of the rack segment to limit the position.

[0017] The other side of the upper shell of the driving block is provided with a third moving guide section and a fourth moving guide section from top to bottom, which cooperate with the outer side of the shell wall of the driving block. The limiting contact cooperates with the outer side of the shell wall of the rack segment to limit the third moving guide section and the fourth moving guide section to clamp the guide rail in the middle.

[0018] Furthermore, the guide rail is installed on one side of the installation base plate, a motor installation chamber is provided on one side of the upper shell of the driving block, a motor is horizontally arranged in the motor installation chamber, and the other side of the upper shell of the driving block cooperates with the guide rail.

[0019] Preferably, the driving gear is coaxially provided with a large gear and a small gear, the motor drives the large gear to rotate, and the small gear is meshed with the rack segment.

[0020] Preferably, the driving block assembly moves at the opening of the mounting base plate, and the driving block assembly spans across both sides of the opening; The windshield connecting plate is symmetrically connected to two sliding blocks, and the sliding blocks are located in the guide grooves.

[0021] The present invention has the following beneficial effects: Compared with the prior art, the gear rack meshing part is exposed and lacks movement limit on the gear rack meshing part, which leads to obvious shaking and swaying during the driving process of the device, and the driving parts are easily affected by the wind during use, causing obvious shaking.

[0022] The present invention buries the rack segment in the guide rail, and the opening of the guide rail faces downward, so that the rack is not easily contacted with debris and is not easily worn. In addition, the drive block assembly can surround the guide rail and move up and down on the guide rail. The guide rail can become the meshing point of the gear rack and can also guide the movement direction of the drive block assembly to move along the direction of the guide rail.

[0023] In addition, the structure inside the opening of the guide rail can cooperate with the upper shell of the drive block, limiting the movement of the drive block assembly in directions other than the main movement direction. In addition, the gear rack is a flat meshing method, which occupies a small space, has a compact structure, and is easy to install. It can also limit the shaking of the drive block assembly in the main movement direction. The main components such as the motor and the drive gear are all installed inside the drive block assembly and are not in contact with the external environment, which can extend the service life. The guide rail is offset on the mounting base plate, which reduces the installation size of the drive block assembly after the guide rail is installed, so that the drive block assembly does not protrude from the mounting base plate, reducing the installation volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a front cross-sectional view of the present invention.

[0026] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0027] Figure 4 It is a top cross-sectional view of the present invention.

[0028] Figure 5 It is a schematic diagram of the overall structure of the driving block assembly of the present invention.

[0029] Figure 6It is a side cross-sectional view of the drive block assembly of the present invention.

[0030] Figure 7 It is a side view of the driving gear of the present invention.

[0031] Figure 8 Another side view of the driving gear of the present invention.

[0032] Fig. 9 It is a side view of the guide rail of the present invention.

[0033] Fig.10 It is a cross-sectional schematic diagram of the motor driving part of the present invention.

[0034] Fig.11 It is a schematic diagram of the structure of one side of the lower shell of the driving block of the present invention.

[0035] In the figure, 1-mounting base plate, 2-driving block assembly, 21-driving gear, 211-large gear, 212-mounting shaft, 213-small gear, 22-driving block upper shell, 221-first moving guide section, 2211-rack section upper limit, 2212-first guide rail matching section, 222-second moving guide section, 2221-rack section lower limit, 2222-second guide rail matching section, 223-third moving guide section, 224-fourth moving guide section, 225-fifth moving guide Segment, 226-limit contact, 227-raised limit segment, 228-motor terminal, 23-motor mounting chamber, 231-motor, 232-motor output shaft, 233-drive block partition plate, 24-drive block lower shell, 241-gear mounting portion, 25-windshield connecting plate, 3-guide rail, 31-rack segment, 32-rack segment shell wall, 33-drive block matching shell wall, 34-end mounting point, 35-guide rail middle section, 4-windshield mounting plate, 5-guide groove, 6-slider. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0037] Embodiment 1: like Figures 1 to 11As shown, an electric windshield mechanism is intended to ensure smooth and rapid movement of the windshield. The present invention includes a mounting base plate 1, which serves as the supporting base of the entire mechanism. All components of the windshield mechanism are mounted on the mounting base plate 1 or rely on the mounting base plate 1. In the middle of the mounting base plate 1, there is an opening, the uppermost end of which is a "J"-shaped structure, and the shape of the opening is uneven and asymmetrical. The distances from both sides of the opening to the central axis of the mounting base plate 1 are the same, and the opening occupies about one-half of the area of ​​the mounting base plate 1. The movement of the drive block assembly 2 on the mounting base plate 1 is carried out within the range of the opening.

[0038] Guide grooves 5 are symmetrically and parallelly arranged on both sides of the opening of the installation base plate 1, and the direction of the guide grooves 5 is the same as the direction of the central axis of the installation base plate 1. A slider 6 is slidably installed in the guide grooves 5.

[0039] A guide rail 3 is fixedly mounted on the mounting base plate 1. The guide rail 3 provides guidance for the movement of the drive block assembly 2. The guide rail 3 is mounted at the upper and lower ends of the opening of the mounting base plate 1. The guide rail 3 is vertically mounted, and the guide rail 3 is parallel to the axis of the mounting base plate 1. A rack segment 31 is provided in the guide rail 3.

[0040] The driving block assembly 2 is provided with a motor 231 and a driving gear 21, and the motor 231 drives the driving gear 21 to rotate. Specifically, the driving motor 231 drives the rotation of the large gear 211 on the driving gear 21, thereby driving the entire driving gear 21 to rotate. The driving gear 21 is meshed with the rack segment 31 provided in the guide rail 3, and the rotation output of the motor 231 is converted into a linear motion of the driving block assembly 2 along the guide rail 3. The rack segment 31 is meshed with the small gear 213 of the driving gear 21 for driving.

[0041] The rack segment 31 provided in the guide rail 3 is arranged horizontally, that is, the rack segment 31 of the guide rail 3 is placed horizontally on the bottom plane of the guide rail 3, and the setting direction of the rack segment 31 in the guide rail 3 is parallel to the installation direction of the guide rail 3. At least one rack segment 31 is provided in the guide rail 3, and at least two rows of rack segments 31 can be arranged in parallel in the upper and lower directions in the guide rail 3 to cooperate with one of the driving gears 21. However, the more rows of the rack segments 31, the higher the processing accuracy and matching accuracy requirements of the rack segments 31, but it still does not deviate from the protection scope of the present invention.

[0042] The driving block assembly 2 is provided with a driving block upper shell 22 and a windshield connecting plate 25, and the driving block upper shell 22 and the windshield connecting plate 25 are installed in cooperation to enclose the guide rail 3. The enclosing here does not completely cover the guide rail 3 inside, but encloses the gear meshing part on the driving gear 21 and the rack segment 31 in a relatively closed space, thereby ensuring the stability of the driving block assembly 2 during movement.

[0043] The opening of the guide rail 3 faces inward and downward, so the rack segment 31 also faces inward and downward, and debris is not easy to accumulate at the position of the rack segment 31, and will automatically leave the rack segment 31 due to gravity. The rack segment 31 is arranged horizontally at the bottom of the guide rail 3, so that the small gear 213 in the driving gear 21 and the rack segment 31 are matched horizontally. This makes the up and down movement of the driving block assembly 2 more stable and less likely to cause shaking or jittering.

[0044] The windshield connecting plate 25 is a thin plate-like structure in the shape of a cross, and the middle protruding plane of the windshield connecting plate 25 is fixedly connected to the upper shell 22 of the driving block by bolts. The two sides of the windshield connecting plate 25 are respectively fixedly connected to one end of the sliders 6 provided on the two sides of the mounting base 1, and the connection position between the windshield connecting plate 25 and the sliders 6 is also covered with a windshield mounting plate 4, and the windshield mounting plate 4 is also fixed to the windshield connecting plate 25 at the same connection position.

[0045] The windshield mounting plate 4 is also symmetrically distributed on both sides of the mounting base plate 1. The windshield mounting plate 4 is also fixedly connected to the other end of the slider 6, and the windshield mounting plate 4 is fixedly installed with the windshield to drive the lifting of the windshield.

[0046] The driving block assembly 2 includes the windshield connecting plate 25, the driving block upper shell 22 and the driving block lower shell 24, which are formed by the windshield connecting plate 25, the driving block upper shell 22 and the driving block lower shell 24 in order, the windshield connecting plate 25 and the driving block upper shell 22 are fixedly connected by bolts, and the driving block lower shell 24 and the driving block upper shell 22 are also fixedly connected by bolts. The structure of the driving block upper shell 22 has a smaller height on one side but a larger length, and a larger height and a smaller length on the other side. Uneven distribution.

[0047] The upper shell 22 of the driving block is a shell-like structure with openings at both ends, and the windshield connecting plate 25 and the lower shell 24 of the driving block are both thin plate-like structures. The windshield connecting plate 25 is spliced ​​and assembled with the upper shell 22 of the driving block and the lower shell 24 of the driving block, and fixedly installed to form the main structure of the driving block assembly 2. A raised limit section 227 is provided at the upper end of the upper shell 22 of the driving block to limit the upper and lower movement of the driving block assembly, and a corresponding portion is also provided on the mounting base plate 1 to cooperate with the raised limit block 227.

[0048] The installation positions of the driving block upper shell 22 and the driving block lower shell 24 can be divided into two chambers, one of which is a motor installation chamber 23, in which a motor 231 is installed horizontally. The driving gear 21, specifically a large gear 211, is installed in the other chamber. At the position where the driving block lower shell 24 is installed in cooperation with the large gear 211, a gear installation portion 241 is provided in the direction of the driving block upper shell 22. The gear installation portion 241 is installed in cooperation with the installation shaft 212 in the driving gear 21, and one end face of the large gear 211 is against the gear installation portion 241. The installation shaft 212 is rotatably connected to the gear installation portion 241.

[0049] The installation position of the driving gear 21 on the driving block upper shell 22 is relatively high and relatively short. Therefore, the installation position of the guide rail 3 on the installation base plate 1 is biased to one side and not centered, so as to better cooperate with the driving block assembly 2 for driving.

[0050] The guide rail 3 is in the shape of a handle, and has a structure that is thick at both ends and thin in the middle. The two ends of the guide rail 3 are end mounting portions 34, and the end mounting portions 34 are fixedly connected to the upper and lower ends of the opening of the mounting base plate 1 by bolts, and are easy to disassemble. The thickness of the end mounting portions 34 at both ends of the guide rail 3 is greater than the thickness of the middle section 35 of the guide rail 3. The thickness of the end mounting portions 34 increases as it approaches the middle section 35 of the guide rail, and a sudden change occurs at the position of the middle section 35 of the guide rail, and the thickness decreases abruptly.

[0051] The middle section 35 of the guide rail 3 is a strip-shaped structure of uniform size, and the position of the middle section 35 of the guide rail toward the driving block upper shell 22 of the driving block assembly 2 is a disc-shaped structure. The shell walls on both sides of the disc-shaped structure are respectively provided with a rack segment shell wall 32 close to the rack segment 31 and a driving block matching shell wall 33 away from the rack segment 31, and the position close to the rack segment shell wall 32 is provided with a rack segment 31. The rack segment shell wall 32 is parallel to the rack segment 31 and the driving block matching shell wall 33.

[0052] The teeth of the rack segment 31 face the drive block matching housing wall 33 so as to leave enough space for the gear meshing between the rack segment 31 and the drive gear 21 .

[0053] Embodiment 2: The main structure and working mode of this embodiment are the same as those of the first embodiment. In this embodiment, the matching relationship between the upper shell 22 of the driving block and the guide rail 3 is further described.

[0054] like Figures 1 to 11 As shown, an electric windshield mechanism is intended to ensure smooth and rapid movement of the windshield. The present invention includes a mounting base plate 1, which serves as the supporting base of the entire mechanism. All components of the windshield mechanism are mounted on the mounting base plate 1 or rely on the mounting base plate 1. In the middle of the mounting base plate 1, there is an opening, the uppermost end of which is a "J"-shaped structure, and the shape of the opening is uneven and asymmetrical. The distances from both sides of the opening to the central axis of the mounting base plate 1 are the same, and the opening occupies about one-half of the area of ​​the mounting base plate 1. The movement of the drive block assembly 2 on the mounting base plate 1 is carried out within the range of the opening.

[0055] Guide grooves 5 are symmetrically and parallelly arranged on both sides of the opening of the installation base plate 1, and the direction of the guide grooves 5 is the same as the direction of the central axis of the installation base plate 1. A slider 6 is slidably installed in the guide grooves 5.

[0056] A guide rail 3 is fixedly mounted on the mounting base plate 1. The guide rail 3 provides guidance for the movement of the drive block assembly 2. The guide rail 3 is mounted at the upper and lower ends of the opening of the mounting base plate 1. The guide rail 3 is vertically mounted, and the guide rail 3 is parallel to the axis of the mounting base plate 1. A rack segment 31 is arranged inside the guide rail 3.

[0057] The driving block assembly 2 is provided with a motor 231 and a driving gear 21, and the motor 231 drives the driving gear 21 to rotate. Specifically, the driving motor 231 drives the rotation of the large gear 211 on the driving gear 21, thereby driving the entire driving gear 21 to rotate. The driving gear 21 is meshed with the rack segment 31 provided in the guide rail 3, and the rotation output of the motor 231 is converted into a linear motion of the driving block assembly 2 along the guide rail 3. The rack segment 31 is meshed with the small gear 213 of the driving gear 21 for driving.

[0058] The rack segment 31 provided in the guide rail 3 is arranged horizontally, that is, the rack segment 31 of the guide rail 3 is placed horizontally on the bottom plane of the guide rail 3, and the setting direction of the rack segment 31 in the guide rail 3 is parallel to the installation direction of the guide rail 3. At least one rack segment 31 is provided in the guide rail 3, and at least two rows of rack segments 31 can be arranged in parallel in the upper and lower directions in the guide rail 3 to cooperate with one of the driving gears 21. However, the more rows of the rack segments 31, the higher the processing accuracy and matching accuracy requirements of the rack segments 31, but it still does not deviate from the protection scope of the present invention.

[0059] The driving block assembly 2 is provided with a driving block upper shell 22 and a windshield connecting plate 25, and the driving block upper shell 22 and the windshield connecting plate 25 are installed in cooperation to enclose the guide rail 3. The enclosing here does not completely cover the guide rail 3 inside, but encloses the gear meshing part on the driving gear 21 and the rack segment 31 in a relatively closed space, thereby ensuring the stability of the driving block assembly 2 during movement.

[0060] The opening of the guide rail 3 faces inward and downward, so the rack segment 31 also faces inward and downward, and debris is not easy to accumulate at the position of the rack segment 31, and will automatically leave the rack segment 31 due to gravity. The rack segment 31 is arranged horizontally at the bottom of the guide rail 3, so that the small gear 213 in the driving gear 21 and the rack segment 31 are matched horizontally. This makes the up and down movement of the driving block assembly 2 more stable and less likely to cause shaking or jittering.

[0061] The windshield connecting plate 25 is a thin plate-like structure in the shape of a cross, and the middle protruding plane of the windshield connecting plate 25 is fixedly connected to the upper shell 22 of the driving block by bolts. The two sides of the windshield connecting plate 25 are respectively fixedly connected to one end of the sliders 6 provided on the two sides of the mounting base 1, and the connection position between the windshield connecting plate 25 and the sliders 6 is also covered with a windshield mounting plate 4, and the windshield mounting plate 4 is also fixed to the windshield connecting plate 25 at the same connection position.

[0062] The windshield mounting plate 4 is also symmetrically distributed on both sides of the mounting base plate 1. The windshield mounting plate 4 is also fixedly connected to the other end of the slider 6, and the windshield mounting plate 4 is fixedly installed with the windshield to drive the lifting of the windshield.

[0063] The driving block assembly 2 includes the windshield connecting plate 25, the driving block upper shell 22 and the driving block lower shell 24, which are formed by the windshield connecting plate 25, the driving block upper shell 22 and the driving block lower shell 24 in order, the windshield connecting plate 25 and the driving block upper shell 22 are fixedly connected by bolts, and the driving block lower shell 24 and the driving block upper shell 22 are also fixedly connected by bolts. The structure of the driving block upper shell 22 has a smaller height on one side but a larger length, and a larger height and a smaller length on the other side. Uneven distribution.

[0064] The upper shell 22 of the driving block is a shell-like structure with openings at both ends, and the windshield connecting plate 25 and the lower shell 24 of the driving block are both thin plate-like structures. The windshield connecting plate 25 is spliced ​​and assembled with the upper shell 22 of the driving block and the lower shell 24 of the driving block, and fixedly installed to form the main structure of the driving block assembly 2. A raised limit section 227 is provided at the upper end of the upper shell 22 of the driving block to limit the upper and lower movement of the driving block assembly, and a corresponding portion is also provided on the mounting base plate 1 to cooperate with the raised limit block 227.

[0065] The installation positions of the driving block upper shell 22 and the driving block lower shell 24 can be divided into two chambers, one of which is a motor installation chamber 23, in which a motor 231 is installed horizontally. The driving gear 21, specifically a large gear 211, is installed in the other chamber. At the position where the driving block lower shell 24 is installed in cooperation with the large gear 211, a gear installation portion 241 is provided in the direction of the driving block upper shell 22. The gear installation portion 241 is installed in cooperation with the installation shaft 212 in the driving gear 21, and one end face of the large gear 211 is against the gear installation portion 241. The installation shaft 212 is rotatably connected to the gear installation portion 241.

[0066] The installation position of the driving gear 21 on the driving block upper shell 22 is relatively high and relatively short. Therefore, the installation position of the guide rail 3 on the installation base plate 1 is biased to one side and not centered, so as to better cooperate with the driving block assembly 2 for driving.

[0067] The guide rail 3 is in the shape of a handle, and has a structure that is thick at both ends and thin in the middle. The two ends of the guide rail 3 are end mounting portions 34, and the end mounting portions 34 are fixedly connected to the upper and lower ends of the opening of the mounting base plate 1 by bolts, and are easy to disassemble. The thickness of the end mounting portions 34 at both ends of the guide rail 3 is greater than the thickness of the middle section 35 of the guide rail 3. The thickness of the end mounting portions 34 increases as it approaches the middle section 35 of the guide rail, and a sudden change occurs at the position of the middle section 35 of the guide rail, and the thickness decreases abruptly.

[0068] The middle section 35 of the guide rail 3 is a strip-shaped structure of uniform size, and the position of the middle section 35 of the guide rail toward the driving block upper shell 22 of the driving block assembly 2 is a disc-shaped structure. The shell walls on both sides of the disc-shaped structure are respectively provided with a rack segment shell wall 32 close to the rack segment 31 and a driving block matching shell wall 33 away from the rack segment 31, and the position close to the rack segment shell wall 32 is provided with a rack segment 31. The rack segment shell wall 32 is parallel to the rack segment 31 and the driving block matching shell wall 33.

[0069] The teeth of the rack segment 31 face the drive block matching housing wall 33, so as to leave enough space for the gear meshing between the rack segment 31 and the drive gear 21. The end position of the rack segment housing wall 32 is flush with the end position of the rack segment 31 and the end position of the drive block matching housing wall 33.

[0070] A first moving guide section 221 is provided at the middle upper end of the position where the driving block upper shell 22 cooperates with the guide rail 3. The first moving guide section 221 is in an inverted "J" shape. When the first moving guide section 221 is in cooperation, the horizontal section can enclose the pinion 213 and the rack section 31 meshing with the pinion 213 in the internal space of the driving block upper shell 22. It is isolated from the external environment, ensuring the stability of the engagement between the pinion 213 and the rack section 31. No foreign matter will enter the interior of the driving block upper shell 22 to interfere with the movement of the pinion 213 and the rack section 31.

[0071] One side of the first moving guide section 221 is a first guide rail matching section 2212. The first guide rail matching section 2212 is long enough to have a long matching contact portion with the inner side wall of the driving block matching shell wall 33, which has a better guiding effect on the movement of the driving block matching shell wall 33. The driving block upper shell 22 is also provided with a third moving guide section 223, which is separated from the first guide rail matching section 2212 by a strip-shaped gap, and the driving block matching shell wall 33 is embedded in the gap. The third moving guide section 223 contacts and matches with the outer side wall of the driving block matching shell wall 33, and the length of the third moving guide section 223 is much longer than the first guide rail matching section 2212. The cooperation between the first guide rail matching section 2212 and the third moving guide section 223 can completely limit the movement of the driving block assembly 2 along the guide rail 3 and the driving block matching shell wall 33.

[0072] On the other side of the first moving guide section 221, a rack segment upper limit stop 2211 is provided to cooperate with the rack segment 31. The distance between the rack segment upper limit stop 2211 and the height of the rack segment 31 is small. While not affecting the up and down movement of the drive block assembly 2 on the guide rail 3, the possibility of foreign debris falling into the drive block assembly 2 is cut off as much as possible, ensuring the cleanliness of the matching position between the rack segment 31 and the pinion 213, reducing the wear caused by debris due to the gear rack being exposed to the outside, extending the service life of the pinion 213 and the rack segment 31, and reducing wear. It also avoids the noise generated when the windshield mechanism moves up and down due to wear or debris. And it is more stable during operation.

[0073] Compared with the prior art that lacks guide limiters, the windshield mechanism of the present invention is not prone to shaking or swaying when subjected to force, but it is unavoidable that the windshield itself will shake due to the thickness of the windshield itself.

[0074] A second moving guide section 222 is provided at the middle lower end of the position where the driving block upper shell 22 and the guide rail 3 are matched. The second moving guide section 222 is in a "J" shape. When matched, the horizontal section of the second moving guide section 222 can enclose the pinion 213 and the rack section 31 meshing with the pinion 213 in the internal space of the driving block upper shell 22. It is isolated from the external environment, ensuring the stability of the engagement between the pinion 213 and the rack section 31. No debris will enter the interior of the driving block upper shell 22 to interfere with the movement of the pinion 213 and the rack section 31.

[0075] One side of the second moving guide section 222 is a second guide rail matching section 2222. The second guide rail matching section 2222 is relatively long and can have a relatively long matching contact portion with the inner side wall of the driving block matching shell wall 33, which has a better guiding effect on the movement of the driving block matching shell wall 33. The driving block upper shell 22 is also provided with a fourth moving guide section 224, which is separated from the second guide rail matching section 2222 by a strip-shaped gap, and the driving block matching shell wall 33 is embedded in the gap. The fourth moving guide section 224 contacts and matches with the outer side wall of the driving block matching shell wall 33, and the length of the fourth moving guide section 224 is much longer than the second guide rail matching section 2222. The cooperation between the second guide rail matching section 2222 and the fourth moving guide section 224 can completely limit the movement of the driving block assembly 2 along the guide rail 3 and the driving block matching shell wall 33.

[0076] On the other side of the second moving guide section 222, a rack section lower limit 2221 is provided to cooperate with the rack section 31. The distance between the rack section lower limit 2221 and the height of the rack section 31 is small. While not affecting the up and down movement of the drive block assembly 2 on the guide rail 3, the possibility of foreign debris falling into the drive block assembly 2 is cut off as much as possible, ensuring the cleanliness of the matching position between the rack section 31 and the pinion 213, reducing the wear caused by debris due to the gear rack being exposed to the outside, extending the service life of the pinion 213 and the rack section 31, and reducing wear. It also avoids the noise generated when the windshield mechanism moves up and down due to wear or debris. And it is more stable during operation.

[0077] A fifth moving guide section 225 and a position limiting contact 226 are provided on one side of the upper shell 22 of the driving block from top to bottom. The fifth moving guide section 225 and the position limiting contact 226 cooperate with the outer side of the rack segment shell wall 32 to limit the position. There are at least two position limiting contacts 226. In this embodiment, three position limiting contacts 226 are provided. The other side of the upper shell 22 of the driving block is provided with a third moving guide section 223 and a fourth moving guide section 224 from top to bottom, which cooperate with the outer side of the driving block shell wall 33, and the limiting contact 226 cooperates with the outer side of the rack segment shell wall 32 to limit the third moving guide section 223 and the fourth moving guide section 224 to clamp the guide rail 3 in the middle.

[0078] The guide rail 3 is installed on one side of the installation base plate 1, and a motor installation chamber 23 is provided on one side of the driving block upper shell 22. A motor 231 is horizontally arranged in the motor installation chamber 23, and the other side of the driving block upper shell 22 cooperates with the guide rail 3.

[0079] The driving gear 21 is coaxially provided with a large gear 211 and a small gear 213 . The motor 231 drives the large gear 211 to rotate, and the small gear 213 is meshed with the rack segment 31 .

[0080] The driving block assembly 2 moves at the opening of the mounting base plate 1 , and the driving block assembly 2 spans across both sides of the opening.

[0081] The windshield connecting plate 25 is symmetrically connected to two sliding blocks 6 , and the sliding blocks 6 are located in the guide groove 5 .

[0082] A motor terminal 228 is provided on the side of the raised limit block 227, and the motor terminal 228 is connected to the motor installation chamber 23, connected to the motor 231, and connected to an external power source. The motor 231 has a motor output shaft 232 that cooperates with the large gear 211. The motor output shaft 232 is fixedly connected to a worm (not shown in the figure), and the motor output shaft 232 is driven and matched with the large gear 211 through the worm, thereby driving the small gear 213 to move on the rack segment 31. An arc-shaped drive block partition plate 233 is provided on the side of the motor installation chamber 23 away from the drive block lower shell 24 to separate the motor 231 in the motor installation chamber 23, so as to prevent the motor 231 from directly contacting the external environment and affecting the service life of the motor.

[0083] Embodiment three: This embodiment specifically describes the working process of the windshield mechanism, the motor 231 drives the large gear 211 to rotate, the large gear 211 and the small gear 213 are an integrated structure, and the small gear 213 rotates together. Because the motor output end 232 and the large gear 211 are driven by a worm gear, the output torque of the motor 231 is amplified, and the large gear 211 and the small gear 213 have the same rotation speed, so the torque of the small gear 213 is further amplified, the output torque is larger, and the windshield with a larger gravity can be driven to move up and down.

[0084] The pinion 213 meshes with the rack segment 31, so that the pinion 213 moves up and down along the rack segment 31, thereby driving the drive block assembly 2 to move up and down along the guide rail 3, and driving the slider 6 to slide up and down in the guide groove 5. The slider 6 and the guide groove 5 further guide the movement of the drive block assembly 2, thereby increasing the stability of the windshield mechanism during movement. The drive block assembly 2 is placed at the opening position of the mounting base plate 1, and penetrates the two sides of the mounting base plate 1, so that the protrusion of the drive block assembly 2 on the mounting base plate 1 is small, the overall structure of the windshield mechanism is relatively compact, and the space required for installation is small.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric windshield mechanism, characterized in that: The invention comprises a mounting base plate (1), wherein an opening is provided in the middle of the mounting base plate (1), a guide rail (3) is fixedly mounted on the mounting base plate (1), the guide rail (3) is connected to a driving block assembly (2), a motor (231) and a driving gear (21) are provided in the driving assembly (2), at least one rack segment (31) is provided in the guide rail (3), and the driving gear (21) and the rack segment (31) are meshed; The driving block upper shell (22) and the windshield connecting plate (25) of the driving block assembly (2) surround the guide rail (3).

2. The electric windshield mechanism according to claim 1, characterized in that: The driving block assembly (2) is composed of the windshield connecting plate (25), the driving block upper shell (22) and the driving block lower shell (24) stacked together, and a driving gear (21) is provided between the driving block upper shell (22) and the driving block lower shell (24).

3. The electric windshield mechanism according to claim 1, characterized in that: The guide rail (3) is in the shape of a handle, and the two ends of the guide rail (3) are end mounting portions (34). The end mounting portions (34) are fixedly mounted to the upper and lower ends of the mounting base plate (1), and the thickness of the end mounting portions (34) is greater than the thickness of the guide rail middle section (35) of the guide rail (3).

4. An electric windshield mechanism according to claim 1, 2 or 3, characterized in that: The middle part of the guide rail (3) is a guide rail middle section (35) of uniform size, and the guide rail middle section (35) is in a disc-shaped structure facing the driving block assembly (2). A rack segment shell wall (32) and a driving block matching shell wall (33) are respectively provided on both sides of the disc-shaped structure, and a rack segment (31) is provided near the rack segment shell wall (32) and is spaced and arranged in parallel with the rack segment shell wall (32); The teeth of the rack segment (31) face toward the drive block matching housing wall (33).

5. The electric windshield mechanism according to claim 4, characterized in that: A first moving guide section (221) is provided at the middle upper end of the position where the driving block upper shell (22) cooperates with the guide rail (3); one side of the first moving guide section (221) is a first guide rail matching section (2212); the driving block upper shell (22) is also provided with a third moving guide section (223) which is separated from the first guide rail matching section (2212) by a strip-shaped gap, and the driving block matching shell wall (33) is embedded in the gap; The other side of the first moving guide section (221) is a rack section upper limit stop (2211) which cooperates with the rack section (31).

6. The electric windshield mechanism according to claim 4, characterized in that: A second moving guide section (222) is provided at the lower end of the driving block upper shell (22); one side of the second moving guide section (222) is a second guide rail matching section (2222); a fourth moving guide section (224) is provided on the driving block upper shell (22) to match with the second moving guide section (222) to guide the driving block to match the shell wall (33); The other side of the second moving guide section (222) is a rack section lower limit (2221) that cooperates with the rack section (31).

7. The electric windshield mechanism according to claim 4, characterized in that: A fifth moving guide section (225) and a limiting contact (226) are provided on one side of the upper shell (22) of the driving block from top to bottom, and the fifth moving guide section (225) and the limiting contact (226) cooperate with the outer side of the rack segment shell wall (32) to limit the position; The other side of the upper shell (22) of the driving block is provided with a third moving guide section (223) and a fourth moving guide section (224) from top to bottom, which cooperate with the outer side of the shell wall (33) of the driving block, and the limiting contact (226) cooperates with the outer side of the shell wall (32) of the rack segment to limit the third moving guide section (223) and the fourth moving guide section (224) to clamp the guide rail (3) in the middle.

8. An electric windshield mechanism according to claim 1 or 2 or 3 or 5 or 6 or 7, characterized in that: The guide rail (3) is installed on the installation base plate (1) at one side, a motor installation chamber (23) is provided on one side of the drive block upper shell (22), a motor (231) is horizontally arranged in the motor installation chamber (23), and the other side of the drive block upper shell (22) cooperates with the guide rail (3).

9. An electric windshield mechanism according to claim 1 or 2 or 3 or 5 or 6 or 7, characterized in that: The driving gear (21) is coaxially provided with a large gear (211) and a small gear (213); the motor (231) drives the large gear (211) to rotate, and the small gear (213) meshes with the rack segment (31).

10. An electric windshield mechanism according to claim 1 or 2 or 3 or 5 or 6 or 7, characterized in that: The driving block assembly (2) moves at the opening of the mounting base plate (1), and the driving block assembly (2) spans across both sides of the opening; the windshield connecting plate (25) is symmetrically connected to two sliders (6), and the sliders (6) are located in the guide groove (5).

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