A modularly designed window regulator

Abstract

The application provides a modularly designed vehicle window lifter, and relates to the technical field of vehicle window components, comprising two base plates installed on a vehicle door, wherein pulleys are rotatably arranged on the base plates, and a steel wire rope is wound on all the pulleys; a support is slidably arranged on the base plate, and the support is provided with a fixing portion and a connecting portion; the fixing portion fixes the glass and the support; in a lifting cycle of the glass, the connecting portion can fix the steel wire rope and the support, the operation of the steel wire rope can drive the support to slide relative to the base plate, so that the glass is lifted; the connecting portion can also separate the steel wire rope and the support, the operation of the steel wire rope and the relative movement of the support can change the contact section of the steel wire rope and the pulley, so that the contact position of the steel wire rope and the pulley can be switched every time the glass is lifted, the stress state of the steel wire rope in different sections in the axial direction is consistent to a certain extent, the fatigue damage of the whole steel wire rope is more uniform, and the overall service life of the steel wire rope is prolonged.

Description

Technical Field

[0001] This invention relates to the field of vehicle window components technology, and in particular to a modularly designed vehicle window regulator. Background Technology

[0002] To meet multiple requirements such as lighting, ventilation, and sealing, vehicles generally have retractable windows installed in their windows. The raising and lowering function relies on a dedicated lifting mechanism. Early models widely used hand-cranked window regulators, where occupants manually rotated a handle to drive a mechanical transmission device, such as a crossarm structure or a rack and pinion mechanism, converting rotational motion into the raising and lowering motion of the window. To improve ease of operation and automation, electric window regulators have gradually been developed and popularized. Their core uses an electric motor as a power source, employing a worm gear mechanism to reduce speed and increase torque, and change the direction of power transmission, thereby driving actuators such as steel cables, pulley blocks, or rigid arms to automatically raise and lower the window.

[0003] In existing rope-type window regulators, the stress state of the wire rope varies in different sections along its axial direction during operation. Specifically, the bent section in contact with the pulley bears cyclic bending stress and is prone to fatigue damage, while the non-bent section, not in contact with the pulley, remains essentially straight and suffers less damage. This uneven stress distribution leads to accelerated wear in some sections of the wire rope, while other sections are underutilized, thus limiting the overall service life of the wire rope.

[0004] The information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] Therefore, it is necessary to provide a modularly designed window regulator to address the problems existing in current window regulators.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A modularly designed window regulator includes two base plates mounted on a vehicle door and arranged opposite each other. Each base plate has pulleys rotatably mounted at both ends. A steel wire rope is wound around all the pulleys, and the steel wire rope has a contact section opposite to the pulley. The vehicle door also has a drive assembly for reciprocating the steel wire rope. A support is slidably mounted on the base plate. The support has a fixing part and a connecting part. The fixing part is used to fix the glass to the support. During one lifting cycle of the glass, the connecting part has a first state and a second state. In the first state, the connecting part fixes the steel wire rope to the support, and the movement of the steel wire rope can drive the support to slide relative to the base plate, so as to lift the glass. In the second state, the connecting part separates the steel wire rope from the support, and the movement of the steel wire rope can change its contact section opposite to the pulley.

[0008] Furthermore, the connecting part includes a first clamping member and a second clamping member disposed opposite to each other on both sides of the wire rope. The first clamping member and the second clamping member can move relative to each other to move closer or further away, and the direction of movement is perpendicular to the sliding direction of the support, so that the distance between the first clamping member and the second clamping member switches between a first value and a second value, wherein the first value is less than the second value. When the distance between the first clamping member and the second clamping member is the first value, the connecting part is in a first state, and when the distance between the first clamping member and the second clamping member is the second value, the connecting part is in a second state.

[0009] Furthermore, the first clamping member is fixed to the support, while the second clamping member slides relative to the support.

[0010] Furthermore, two first clamping members are provided on the same side of the wire rope, the two first clamping members are spaced apart along the sliding direction of the support, and the second clamping member is located on the perpendicular bisector of the line connecting the two first clamping members.

[0011] Furthermore, a drive wheel is rotatably mounted on the substrate, and the wire rope contacts the circumferential surface of the drive wheel; a contact member is slidably mounted on the second clamping member, and the sliding direction is parallel to the sliding direction of the support; a first elastic member is provided between the second clamping member and the contact member, and the first elastic member is used to make the second clamping member and the contact member move away from each other or have a tendency to move away from each other; the maximum displacement of the support relative to the substrate is a third value; when the displacement of the support relative to the substrate is a fourth value, the contact member contacts the drive wheel, and the fourth value is less than the third value; when the displacement of the support relative to the substrate increases towards the third value, the wire rope drives the drive wheel to rotate, and the contact member causes the distance between the second clamping member and the first clamping member to increase from the first value to the second value.

[0012] Furthermore, a gear is coaxially mounted on the drive wheel, and a rack that can mesh with the gear is mounted on the contact member. When the displacement of the support relative to the base plate is a fourth value, the gear meshes with the rack; when the displacement of the support relative to the base plate is a third value, the gear disengages from the rack, and the gear contacts the contact member.

[0013] Furthermore, an auxiliary wheel is rotatably provided on the base plate, the wire rope contacts the circumferential surface of the auxiliary wheel, and the auxiliary wheel is located on the side of the wire rope away from the drive wheel. The auxiliary wheel is used to ensure that the wire rope and the circumferential surface of the drive wheel are in full contact.

[0014] Furthermore, the support slides relative to the substrate along a preset trajectory, which is arc-shaped; the substrate is provided with a slide rail, which is arc-shaped; the second clamping member is slidably connected to the slide rail; and when the second clamping member slides along the slide rail, the distance between the second clamping member and the first clamping member first switches from a first value to a fifth value, and then switches from the fifth value back to the first value; the fifth value is greater than the first value and less than the second value.

[0015] Furthermore, a mounting frame is provided between the pulley and the base plate. The mounting frame includes a swing arm and a support. The pulley is rotatably connected to the swing arm, and the support is fixed to the base plate. The swing arm can swing between a third position and a fourth position relative to the support, and the swing axis is perpendicular to the sliding direction of the support and the rotation axis of the pulley.

[0016] Furthermore, a second elastic element is provided between the pendulum frame and the support, the second elastic element being used to position the pendulum frame between the third and fourth positions or to have a tendency to be in the middle of the third and fourth positions.

[0017] The present invention has at least the following beneficial effects:

[0018] (1) During one lifting cycle of the glass, the connecting part can fix the wire rope to the support, and the wire rope can drive the support to slide relative to the base plate so that the glass can be lifted and lowered; the connecting part can also separate the wire rope from the support, and the wire rope can move relative to the support to change the contact section between the wire rope and the pulley. Thus, the contact section between the wire rope and the pulley can be switched each time the glass is lifted and lowered, so that the stress state of the wire rope in different sections of its axis is consistent to a certain extent, so that the fatigue damage of the wire rope as a whole is more uniform and the overall service life of the wire rope is improved.

[0019] (2) During the sliding process of the support, the distance between the second clamping member and the first clamping member first increases and then decreases, and the clamping degree of the wire rope first decreases and then recovers, thereby relaxing the wire rope to a certain extent, relieving the tension of the wire rope, making the tension on the wire rope more uniform, and reducing the risk of wire rope breakage.

[0020] (3) The swing frame can drive the pulley to swing with the wire rope, thereby avoiding the phenomenon of uneven wear between the wire rope and the pulley to a certain extent. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a modularly designed window regulator provided in an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 for Figure 2 A magnified view of a section at point B in the middle;

[0024] Figure 4 for Figure 1 A magnified view of a section at point C;

[0025] Figure 5 for Figure 1 The front view;

[0026] Figure 6 for Figure 1 Hide the rear view of a substrate;

[0027] Figure 7 for Figure 6 A magnified view of a section at point D;

[0028] Figure 8 for Figure 6 Exploded view of the parts;

[0029] Figure 9 for Figure 8 A magnified view of a section at point E in the middle;

[0030] Figure 10 This is a schematic diagram of the contact section.

[0031] in:

[0032] 101. Base plate; 102. Pulley; 103. Steel wire rope; 104. Drive assembly; 105. Support; 106. Fixing part; 107. Guide tube;

[0033] 201. First clamping component; 202. Second clamping component; 203. Drive wheel; 204. Contact component; 205. Clamping component body; 206. First rod; 207. Second rod; 208. Third rod; 209. Fourth rod; 210. Gear; 211. Rack; 212. Auxiliary wheel; 213. Slide rail; 214. Guide rail; 215. Slide groove; 216. Guide wheel;

[0034] 301. Frame; 302. Bracket; 303. Hinge shaft; 304. Locking pin; 305. Inner groove. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0036] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] like Figures 1 to 10As shown, this embodiment of the invention provides a modularly designed window regulator, including two base plates 101 mounted on a car door and arranged opposite each other. Each base plate 101 has pulleys 102 rotatably mounted at both ends. A steel wire rope 103 is wound around all the pulleys 102, and the steel wire rope 103 has a contact section opposite to the pulleys 102. A drive assembly 104 for reciprocating the steel wire rope 103 is also provided on the car door. A support 105 is slidably mounted on the base plate 101, and a fixing part 106 is provided on the support 105. The connecting part and the fixing part 106 are used to fix the glass to the support 105. During one lifting cycle of the glass, the connecting part has a first state and a second state. In the first state, the connecting part fixes the wire rope 103 to the support 105. The operation of the wire rope 103 can drive the support 105 to slide relative to the substrate 101 so that the glass can be lifted and lowered. In the second state, the connecting part separates the wire rope 103 from the support 105. The operation of the wire rope 103 can change its contact section with the pulley 102.

[0039] During one glass lifting cycle, the connecting part can fix the wire rope 103 to the support 105. The movement of the wire rope 103 can drive the support 105 to slide relative to the base plate 101, so that the glass can be lifted or lowered. The connecting part can also separate the wire rope 103 from the support 105. The wire rope 103 moves and moves relative to the support 105 to change the contact section between the wire rope 103 and the pulley 102. Thus, the contact section between the wire rope 103 and the pulley 102 can be switched each time the glass is lifted or lowered. To a certain extent, the stress state of the wire rope 103 in different sections of its axial direction is consistent, so that the fatigue damage of the wire rope 103 as a whole is more uniform and the overall service life of the wire rope 103 is improved.

[0040] The base plate 101 is elongated, with two base plates 101 spaced apart. When the support 105 slides relative to the base plate 101, it allows the glass to rise and fall; therefore, the tangential directions of the sliding directions of the two supports 105 are parallel. There are four pulleys 102. The wire rope 103 has a closed loop structure. When the wire rope 103 contacts the pulley 102, it is located on the outer side of the pulley 102. Two intersecting structures are formed at the middle of the four pulleys 102, allowing the two supports 105 to rise or fall synchronously relative to the base plate 101. The drive assembly 104 is located at the middle of the four pulleys 102. It can be a motor-driven worm gear structure. A drive wheel is coaxially fixed on the worm gear. The wire rope 103 contacts the circumferential surface of the drive wheel. The motor is equipped with a corresponding power supply and controller to control start, stop, and reversal. The motor's output shaft drives the worm gear to rotate, which in turn drives the worm gear and drive wheel to rotate, thereby driving the wire rope 103 to move actively. The specific arrangement of the wire rope 103 and pulley 102, as well as the structure and working principle of the drive assembly 104, are existing technologies and will not be elaborated upon here. Additionally, the drive assembly 104 includes two guide tubes 107. When the wire rope 103 is input to and output from the drive assembly 104, the guide tubes 107 guide the wire rope 103, ensuring that the wire rope 103 contacts the pulley 102 essentially along its tangential direction, thus preventing uneven wear between the wire rope 103 and the pulley 102 to a certain extent. The fixing part 106 has a clamping structure and an anti-slip and shock-absorbing structure for stably fixing the glass to the support 105.

[0041] In one embodiment, see Figure 4 , Figure 7 and Figure 9 The connecting part includes a first clamping member 201 and a second clamping member 202 disposed opposite to each other on both sides of the wire rope 103. The first clamping member 201 and the second clamping member 202 can move relative to each other to move closer or further away, and the direction of movement is perpendicular to the sliding direction of the support 105, so that the distance between the first clamping member 201 and the second clamping member 202 switches between a first value and a second value, wherein the first value is less than the second value. When the distance between the first clamping member 201 and the second clamping member 202 is the first value, the connecting part is in a first state, and when the distance between the first clamping member 201 and the second clamping member 202 is the second value, the connecting part is in a second state.

[0042] The first clamping member 201 and the second clamping member 202 move closer to each other or further apart, so that the distance between the first clamping member 201 and the second clamping member 202 decreases or increases, thereby switching the fixed state and the separated state between the wire rope 103 and the support 105.

[0043] In one embodiment, the first clamping member 201 is fixed to the support 105, and the second clamping member 202 slides relative to the support 105.

[0044] In one embodiment, two first clamping members 201 are provided on the same side of the wire rope 103, the two first clamping members 201 are spaced apart along the sliding direction of the support 105, and the second clamping member 202 is located on the perpendicular bisector of the line connecting the two first clamping members 201.

[0045] The second clamping member 202 approaches the first clamping member 201 to squeeze the wire rope 103 between the two first clamping members 201, thereby fixing the wire rope 103 to the support 105.

[0046] The first clamping member 201 and the second clamping member 202 are both cylindrical, and their outer circumferential surfaces are in contact with the wire rope 103. The two first clamping members 201 and the one second clamping member 202 cooperate with each other to stably clamp and fix the wire rope 103.

[0047] In one embodiment, see Figures 2 to 4 as well as Figure 7 and Figure 9 A drive wheel 203 is rotatably mounted on the substrate 101, and a steel wire rope 103 contacts the circumferential surface of the drive wheel 203. A contact member 204 is slidably mounted on the second clamping member 202, and the sliding direction is parallel to the sliding direction of the support 105. A first elastic member is provided between the second clamping member 202 and the contact member 204. The first elastic member is used to make the second clamping member 202 and the contact member 204 move away from each other or have a tendency to move away from each other. The maximum sliding displacement of the support 105 relative to the substrate 101 is a third value. When the sliding displacement of the support 105 relative to the substrate 101 is a fourth value, the contact member 204 contacts the drive wheel 203. The fourth value is less than the third value. When the sliding displacement of the support 105 relative to the substrate 101 increases towards the third value, the steel wire rope 103 drives the drive wheel 203 to rotate, and the contact member 204 makes the distance between the second clamping member 202 and the first clamping member 201 increase from the first value to the second value.

[0048] The limit value of the unidirectional travel of the support 105 relative to the base plate 101 is the third value. When the travel of the support 105 relative to the base plate 101 is the fourth value, the contact member 204 contacts the drive wheel 203. When the displacement of the support 105 relative to the base plate 101 increases towards the third value, the contact member 204 and the second clamping member 202 overcome the elastic force of the first elastic member and move closer to each other. The contact member 204 keeps in contact with the drive wheel 203. At the same time, the wire rope 103 drives the drive wheel 203 to rotate. The drive wheel 203 drives the contact member 204 and the second clamping member 202 to slide relative to the support 105, so that the first clamping member 201 and the second clamping member 202 move away from each other and the distance between them gradually increases from the first value to the second value, thereby separating the wire rope 103 from the support 105. At this time, the wire rope 103 continues to run and moves relative to the support 105, thereby changing the contact section between the wire rope 103 and the pulley 102.

[0049] Among them, see Figure 9 The second clamping member 202 includes a clamping member body 205, a first rod 206, and a second rod 207, which are fixed in sequence. The first rod 206 and the second rod 207 are perpendicular to each other. The first rod 206 can slide relative to the support 105 along its length direction, and the length direction of the first rod 206 is perpendicular to the sliding direction of the support 105. The length direction of the second rod 207 is parallel to the sliding direction of the support 105. A guide groove for the first rod 206 to slide is provided on the support 105. The contact member 204 includes a vertically fixed third rod 208 and a fourth rod 209. The third rod 208 has a sliding hole along its length direction. The second rod 207 is slidably disposed in the sliding hole, and a first elastic member is disposed between the second rod 207 and the third rod 208, so that the second clamping member 202 and the contact member 204 are moved away from each other or have a tendency to move away from each other. The length direction of the fourth rod 209 is parallel to the length direction of the first rod 206, and the fourth rod 209 can contact the drive wheel 203. When the displacement of the support 105 relative to the base plate 101 is the fourth value, the fourth rod 209 contacts the drive wheel 203. When the displacement of the support 105 relative to the base plate 101 increases to the third value, the third rod 208 and the second rod 207 overcome the elastic force of the first elastic member and move closer to each other. The wire rope 103 drives the drive wheel 203 to rotate. Through the fourth rod 209, the third rod 208, the second rod 207 and the first rod 206, the clamping body 205 moves away from the first clamping member 201, so that the distance between the first clamping member 201 and the second clamping member 202 gradually increases from the first value to the second value, thereby separating the wire rope 103 from the support 105.

[0050] It is worth noting that, see Figure 1 and Figure 2Between the two pulleys 102 on the substrate 101, the drive wheel 203 is closer to the lower pulley 102. In other words, when the support 105 lowers the glass to the bottom, the connection is in the second state, the wire rope 103 separates from the support 105, and the contact section between the wire rope 103 and the pulley 102 is changed. At other times, the connection is in the first state, that is, the wire rope 103 drives the glass to rise and fall through the support 105. In addition, the fourth value is less than or much less than the third value, so that the contact section between the wire rope 103 and the pulley 102 is changed in the final stage of the glass's descent.

[0051] For example, see Figure 5 and Figure 10 For the pulley 102 below the left substrate 101, during one glass lifting cycle, the contact section between the steel wire rope 103 and the pulley 102 is segment ab. During the descent of the glass driven by the support 105, the steel wire rope 103 runs counterclockwise. When the glass reaches the bottom, the contact member 204 contacts the drive wheel 203, causing the drive wheel 203 to rotate and separating the steel wire rope 103 from the support 105. The steel wire rope 103 then continues to run counterclockwise, changing the contact section between the steel wire rope 103 and the pulley 102 to segment cd. Thus, the relative contact section between the steel wire rope 103 and the pulley 102 can be changed during each glass lifting cycle. The length of ac is equal to the length of bd.

[0052] In one embodiment, see Figure 2 , Figure 4 and Figure 7 A gear 210 is coaxially mounted on the drive wheel 203, and a rack 211 that can mesh with the gear 210 is mounted on the contact member 204. When the displacement of the support 105 relative to the base plate 101 is a fourth value, the gear 210 meshes with the rack 211; when the displacement of the support 105 relative to the base plate 101 is a third value, the gear 210 disengages from the rack 211, and the gear 210 contacts the contact member 204.

[0053] When the displacement of the support 105 relative to the substrate 101 is the fourth value, the gear 210 meshes with the rack 211. When the displacement of the support 105 relative to the substrate 101 increases to the third value, the wire rope 103 drives the drive wheel 203 and the gear 210 to rotate, causing the rack 211, the contact member 204 and the second clamping member 202 to slide relative to the support 105, so that the first clamping member 201 and the second clamping member 202 move away from each other and the distance between them gradually increases from the first value to the second value. At this time, the wire rope 103 separates from the support 105. At this time, the gravity of the glass itself keeps the spring in a compressed state. The wire rope 103 continues to run and moves relative to the support 105 to change the contact section between the wire rope 103 and the pulley 102. Simultaneously, gear 210 disengages from rack 211 and contacts contact member 204. Then, wire rope 103 runs in the opposite direction, driving drive wheel 203 and gear 210 to rotate in the opposite direction, causing rack 211, contact member 204 and second clamping member 202 to slide in the opposite direction relative to support 105, so that first clamping member 201 and second clamping member 202 move closer to each other and reduce the distance between them to a first value, thereby fixing wire rope 103 to support 105. Then, wire rope 103 continues to run in the opposite direction, and support 105 slides in the opposite direction relative to substrate 101, causing glass to rise.

[0054] When gear 210 disengages from rack 211, gear 210 contacts the fourth rod 209 of contact member 204, and there is static friction between gear 210 and fourth rod 209. At this time, wire rope 103 runs in the opposite direction, which can drive the fourth rod 209 to move in the opposite direction. Then gear 210 meshes with rack 211, thereby continuing to drive rack 211, contact member 204 and second clamping member 202 to slide in the opposite direction relative to support 105.

[0055] In one embodiment, see Figure 2 An auxiliary wheel 212 is rotatably provided on the base plate 101. The wire rope 103 contacts the circumferential surface of the auxiliary wheel 212, and the auxiliary wheel 212 is located on the side of the wire rope 103 away from the drive wheel 203. The auxiliary wheel 212 is used to ensure that the wire rope 103 and the circumferential surface of the drive wheel 203 are in full contact, so as to ensure that the wire rope 103 can drive the drive wheel 203 to rotate when running.

[0056] In one embodiment, see Figure 1 and Figure 5The support 105 slides relative to the base plate 101 along a preset trajectory, which is an arc. The base plate 101 is provided with a slide rail 213, which is an arc. The second clamping member 202 is slidably connected to the slide rail 213. When the second clamping member 202 slides along the slide rail 213, the distance between the second clamping member 202 and the first clamping member 201 first changes from a first value to a fifth value, and then changes from the fifth value back to the first value. The fifth value is greater than the first value and less than the second value.

[0057] The unique structure of the car door causes the glass to move in an arc rather than a straight line. Therefore, the sliding trajectory of the support 105 is set to an arc, and the steel cable 103 is taut during operation. The support 105 presses against the steel cable 103 during sliding, subjecting it to additional tension. When the displacement of the support 105 relative to the base plate 101 is half of the third value, the steel cable 103 is at its tautest state, experiencing the greatest tension. Therefore, the tension on the steel cable 103 fluctuates during the sliding of the support 105, posing a risk of breakage. During the sliding process of the support 105, the distance between the second clamping member 202 and the first clamping member 201 first increases and then decreases, and the clamping degree of the wire rope 103 first decreases and then recovers, thereby relaxing the wire rope 103 to a certain extent, relieving the tension of the wire rope 103, making the tension on the wire rope 103 more uniform, and reducing the risk of wire rope 103 breaking.

[0058] The base plate 101 is provided with a guide rail 214, and the support 105 has a guide groove, allowing the support 105 to slide along the guide rail 214. The trajectory of the guide rail 214 is a preset trajectory. The trajectory of the slide rail 213 is also arc-shaped, and the axis of the guide rail 214 trajectory is perpendicular to the axis of the slide rail 213 trajectory. See also Figure 9 At the intersection of the first rod 206 and the second rod 207, a groove 215 corresponding to the slide rail 213 is provided, and two guide wheels 216 are rotatably provided. The two guide wheels 216 are located on both sides of the groove 215, and the circumferential surfaces of the two guide wheels 216 extend into the groove 215. When the support 105 slides along the guide rail 214, the second clamping member 202 slides along the slide rail 213 through the groove 215. At the same time, the guide wheels 216 rotate to reduce friction, so that the second clamping member 202 can move closer to or away from the first clamping member 201. The slide rail 213 is arc-shaped, so it has a convex surface and a concave surface. The convex surface of the slide rail 213 is away from the guide rail 214, so that the second clamping member 202 and the first clamping member 201 first move away from each other and then move closer to each other, so that the distance between the second clamping member 202 and the first clamping member 201 first increases and then decreases. Furthermore, when the second clamping member 202 moves to the protrusion of the slide rail 213, the distance between the second clamping member 202 and the first clamping member 201 is the fifth value.

[0059] In one embodiment, see Figure 2 and Figure 3 A mounting frame is provided between the pulley 102 and the base plate 101. The mounting frame includes a swing frame 301 and a support 302. The pulley 102 is rotatably connected to the swing frame 301, and the support 302 is fixed to the base plate 101. The swing frame 301 can swing between a third position and a fourth position relative to the support 302, and the swing axis is perpendicular to the sliding direction of the support 105 and the rotation axis of the pulley 102.

[0060] Because the tension on the wire rope 103 will fluctuate, it will cause uneven wear between the wire rope 103 and the pulley 102. The swing frame 301 can drive the pulley 102 to swing with the wire rope 103, thereby avoiding uneven wear between the wire rope 103 and the pulley 102 to a certain extent.

[0061] The swing frame 301 has a hinge shaft 303, and the support 302 has a hinge hole. The swing frame 301 and the support 302 are hinged through the hinge shaft 303 and the hinge hole, so that the swing frame 301 can swing relative to the support 302. A locking pin 304 is formed on the outer wall of the hinge shaft 303, and an inner groove 305 is formed along its circumference on the inner wall of the hinge hole for the locking pin 304 to move. The extreme positions of the central angle of the inner groove 305 are respectively opposite to the third position and the fourth position, so that the swing frame 301 swings between the third position and the fourth position relative to the support 302, thereby limiting the swing angle of the pulley 102.

[0062] In one embodiment, a second elastic member is provided between the swing frame 301 and the support 302. The second elastic member is used to position the swing frame 301 between the third position and the fourth position or to have a tendency to be between the third position and the fourth position.

[0063] The second elastic element is a torsion spring and is sleeved on the hinge shaft 303.

[0064] The working principle of this invention is as follows:

[0065] The drive assembly 104 reciprocates the steel wire rope 103 and guides it via the pulley 102. During one lifting cycle of the glass, the connecting part can fix the steel wire rope 103 to the support 105. The movement of the steel wire rope 103 causes the support 105 to slide relative to the substrate 101, thereby lifting and lowering the glass.

[0066] During the process of the support 105 sliding relative to the substrate 101 to lower the glass, when the sliding stroke of the support 105 is the fourth value, the contact member 204 contacts the drive wheel 203; and when the sliding displacement of the support 105 increases to the third value, the contact member 204 and the second clamping member 202 overcome the elastic force of the first elastic member and move closer to each other. The contact member 204 keeps in contact with the drive wheel 203. At the same time, the wire rope 103 drives the drive wheel 203 and the gear 210 to rotate, causing the rack 211, the contact member 204 and the second clamping member 202 to slide relative to the support 105, so that the first clamping member 201 and the second clamping member 202 move away from each other and the distance between them gradually increases from the first value to the second value. At this time, the wire rope 103 separates from the support 105, and the wire rope 103 continues to run and moves relative to the support 105 to change the contact section between the wire rope 103 and the pulley 102. Simultaneously, gear 210 disengages from rack 211 and contacts contact member 204. Then, wire rope 103 reverses direction, driving drive wheel 203 and gear 210 to rotate in the opposite direction. This causes rack 211, contact member 204, and second clamping member 202 to slide in the opposite direction relative to support 105, bringing the first clamping member 201 and second clamping member 202 closer together and reducing the distance between them to a first value. This fixes wire rope 103 to support 105. Afterward, wire rope 103 continues to move in the direction of travel, and support 105 slides in the opposite direction relative to substrate 101, causing the glass to rise. In this process, compared to the previous glass descent, the contact area between wire rope 103 and pulley 102 has changed. Therefore, the contact area between wire rope 103 and pulley 102 can be switched each time the glass descends, ensuring a more consistent stress state in different axial sections of wire rope 103. This results in more uniform fatigue damage to the entire wire rope 103, improving its overall service life.

[0067] During the sliding process of the support 105 relative to the base plate 101, the second clamping member 202 slides along the arc-shaped slide rail 213, causing the distance between the second clamping member 202 and the first clamping member 201 to first increase and then decrease. This first reduces the clamping degree of the wire rope 103 and then restores it, thereby relaxing the wire rope 103 to a certain extent, relieving the tension of the wire rope 103, making the tension on the wire rope 103 more uniform, and reducing the risk of wire rope 103 breakage. At the same time, the swing frame 301 can drive the pulley 102 to swing with the wire rope 103, thereby avoiding uneven wear between the wire rope 103 and the pulley 102 to a certain extent.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A modularly designed window regulator, characterized in that The application relates to a glass lifting device, which comprises two base plates installed on a door and oppositely arranged, each base plate is rotationally provided with pulleys at two ends, all the pulleys are collectively wound with a steel wire rope, the steel wire rope has a contact section opposite to the pulleys, and the door is further provided with a driving assembly for reciprocating operation of the steel wire rope; a support is slidably arranged on the base plate, the support is provided with a fixing part and a connecting part, the fixing part is used for fixing the glass to the support, the connecting part has a first state and a second state in one lifting cycle of the glass, when the connecting part is in the first state, the connecting part fixes the steel wire rope to the support, and the operation of the steel wire rope can drive the support to slide relative to the base plate so as to lift the glass; when the connecting part is in the second state, the connecting part separates the steel wire rope from the support, and the operation of the steel wire rope can change the contact section opposite to the pulleys. The connecting part comprises first clamping pieces and second clamping pieces oppositely arranged on two sides of the steel wire rope, the first clamping pieces and the second clamping pieces can relatively move to approach or move away, and the moving direction is perpendicular to the sliding direction of the support, so that the distance between the first clamping pieces and the second clamping pieces is switched between a first value and a second value, and the first value is smaller than the second value; when the distance between the first clamping pieces and the second clamping pieces is the first value, the connecting part is in the first state, and when the distance between the first clamping pieces and the second clamping pieces is the second value, the connecting part is in the second state. The first clamping pieces are fixed to the support, and the second clamping pieces slide relative to the support. A driving wheel is rotationally arranged on the base plate, and the steel wire rope contacts the circumferential surface of the driving wheel; a contact piece is slidably arranged on the second clamping piece, and the sliding direction is parallel to the sliding direction of the support; a first elastic piece is arranged between the second clamping piece and the contact piece, and the first elastic piece is used for making the second clamping piece and the contact piece move away from each other or having a tendency to move away from each other. The maximum displacement of the support relative to the base plate is a third value, the contact piece contacts the driving wheel when the displacement of the support relative to the base plate is a fourth value, and the fourth value is smaller than the third value; when the displacement of the support relative to the base plate increases to the third value, the steel wire rope drives the driving wheel to rotate, and the contact piece makes the distance between the second clamping piece and the first clamping piece increase from the first value to the second value.

2. The modularly designed window regulator according to claim 1, characterized in that Two first clamping pieces are arranged on the same side of the steel wire rope, the two first clamping pieces are arranged at intervals along the sliding direction of the support, and the second clamping piece is located on the perpendicular bisector of the connecting line of the two first clamping pieces.

3. The modularly designed window regulator according to claim 1, characterized in that A gear is coaxially arranged on the driving wheel, and a rack is arranged on the contact piece and can mesh with the gear; when the displacement of the support relative to the base plate is the fourth value, the gear meshes with the rack; when the displacement of the support relative to the base plate is the third value, the gear is separated from the rack, and the gear contacts the contact piece.

4. The modularly designed window regulator of claim 1, wherein, An auxiliary wheel is rotationally arranged on the base plate, the steel wire rope contacts the circumferential surface of the auxiliary wheel, and the auxiliary wheel is located on the side of the steel wire rope away from the driving wheel, and the auxiliary wheel is used for making the steel wire rope fully contact the circumferential surface of the driving wheel.

5. The modularly designed window regulator of claim 1, wherein, The support slides along a preset track relative to the base plate, and the preset track is arc-shaped; the base plate is provided with a sliding rail, the track of the sliding rail is arc-shaped, the second clamping piece is in sliding connection with the sliding rail, and when the second clamping piece slides along the sliding rail, the distance between the second clamping piece and the first clamping piece is switched from the first value to the fifth value and then from the fifth value to the first value, the fifth value is greater than the first value and smaller than the second value.

6. The modularly designed window regulator according to claim 5, characterized in that A mounting frame is arranged between the pulley and the base plate, the mounting frame comprises a swing frame and a support, the pulley is in rotational connection with the swing frame, the support is fixed with the base plate, the swing frame can swing between a third position and a fourth position relative to the support, and the swing axis is perpendicular to the sliding direction of the support and the rotation axis of the pulley.

7. The modularly designed window regulator according to claim 6, characterized in that A second elastic piece is arranged between the swing frame and the support, and the second elastic piece is used for making the swing frame have a tendency to be in the middle of the third position and the fourth position or to be in the middle of the third position and the fourth position.

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