Emergency unlock pulley assembly and window regulator

Abstract

The application discloses an emergency unlocking pulley assembly and a window lifter. The emergency unlocking pulley assembly comprises a pulley support arranged on a mounting portion of the window lifter; a pulley rotatably or fixedly arranged on the pulley support; an elastic member arranged between the pulley support and the mounting portion and used for applying an elastic force to the pulley support away from the mounting portion; and a limiting member releasably acting on the pulley support and used for overcoming the elastic force of the elastic member and limiting the pulley support on the mounting portion in a normal state; when the limiting member is triggered to release the limitation on the pulley support, the elastic member drives the pulley support to separate from the mounting portion together with the pulley, so that the steel wire rope is released from the constraint and loosened. In the application, the steel wire rope can be quickly released from the constraint on the glass in an emergency, and the glass can be freely slid, so that the success rate of escaping of people in the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and further to an emergency unlocking pulley assembly and a window regulator. Background Technology

[0002] Window regulators are an important component of vehicles, used to raise and lower the windows. Currently, the basic structure of a traditional window regulator includes a drive motor, a reel, a steel cable, a guide rail, and a glass bracket mounted on the guide rail. Under normal circumstances, the motor drives the reel to rotate, which in turn pulls the glass bracket along the guide rail via the steel cable, thus opening and closing the window.

[0003] However, in the event of a serious collision, rollover, or submersion, the vehicle often experiences a power outage, jammed door locks, and locked window regulator motors. In such emergencies, occupants are unable to lower the windows electrically or open the doors, thus losing a vital escape route. While some vehicles have mechanical emergency switches in the trunk or inside the vehicle, these devices typically only affect the door locking system and cannot directly release the window regulator from the glass.

[0004] Therefore, there is an urgent need to design a window regulator that can quickly release the steel cable from the glass in an emergency, allowing the glass to slide freely, in order to solve the above problems. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention aims to provide an emergency unlocking pulley assembly and a window regulator, which can quickly release the steel cable from the glass in an emergency, allowing the glass to slide freely, thereby improving the escape success rate of occupants.

[0006] To achieve the above objectives, the present invention provides an emergency unlocking pulley assembly for installation on a vehicle window regulator and for guiding a steel wire rope, comprising: A pulley bracket is installed at the mounting part of the window regulator; A pulley, rotatably or fixedly mounted on the pulley bracket, is used to support and guide the wire rope; An elastic element is disposed between the pulley bracket and the mounting portion, for applying an elastic force to the pulley bracket away from the mounting portion; A limiting member, releasably acting on the pulley bracket, is used to overcome the elastic force of the elastic member and limit the pulley bracket to the mounting portion under normal conditions; When the limiting member is triggered and releases the limiting on the pulley bracket, the elastic member drives the pulley bracket and the pulley to detach from the mounting part, causing the wire rope to lose its constraint and loosen.

[0007] In some embodiments, the limiting member is a pin, the pulley bracket has a pin hole for the pin to pass through, and the mounting part has a mating slot corresponding to the pin hole. The pin passes through both the pin hole and the mating slot to restrict the pulley bracket from moving in the disengagement direction.

[0008] In some embodiments, a cable assembly is also included, one end of which is connected to the pin and the other end extends to an occupant-operable position inside the vehicle or to a occupant-operable structure, for pulling the pin out of the pin hole under external force. The cable assembly includes a cable body, a sheath sleeve fitted over the outside of the cable body, and a cable fixing sleeve fixed to one end of the cable body. The cable fixing sleeve is connected to the mounting part, and the other end of the cable body is provided with a pull ring or a buckle. The cable assembly also includes a plug, through which the cable body passes and extends to the exterior of the door sheet metal.

[0009] In some embodiments, a cable drive assembly is also included, which includes an emergency motor and a winding reel driven by the emergency motor. The cable assembly is wound on the winding reel, and the emergency motor is powered by the vehicle's emergency power supply to drive the winding reel to rotate and pull the cable assembly to withdraw the pin.

[0010] In some embodiments, the pulley is mounted on the pulley bracket by a pin, which is a pin screw, a press-fit pin, or a spin-fit pin, and the pulley is fixed to the pulley bracket by self-tapping, press-fitting, or spin-fitting. The pulley bracket is provided with a pulley guard structure and / or a positioning post. The pulley guard structure is used to prevent the wire rope from jumping, and the positioning post is used for the installation and positioning of the pulley bracket.

[0011] In some embodiments, the mounting portion is provided with a countersunk hole, the elastic element is accommodated in the countersunk hole, one end of the elastic element abuts against the bottom wall of the countersunk hole, and the other end abuts against the pulley bracket, and the elastic element is a spring or a metal sheet.

[0012] In some embodiments, the countersunk hole is a stepped countersunk hole, and the pulley bracket is provided with a stepped support platform adapted to the stepped countersunk hole. The stepped support platform is used to concentrate the tensile torque generated when the wire rope is stalled at the stepped support platform, so as to reduce the torque borne by the pin.

[0013] In some embodiments, the mounting portion is further provided with a gasket, which surrounds and is fixedly disposed around the countersunk hole to improve the torsional strength at the countersunk hole; The gasket is provided with riveting features and / or rivet holes for riveting and fixing to the mounting part; The gasket is also provided with a hook structure for positioning the gasket and preventing the gasket from tilting during assembly.

[0014] In some embodiments, the mounting portion is provided with an insert nut for fixing to the door sheet metal; The mounting part is also provided with a fixing structure for the cable assembly, which is a buckle or buckle hole for fixing the cable fixing sleeve; The mounting part is also provided with a recessed groove structure, which is located below the recessed hole and is used to shorten the pop-out path of the pulley bracket in the thickness direction of the window regulator.

[0015] According to another aspect of the present invention, the present invention further provides a vehicle window regulator, including an emergency unlocking pulley assembly as described in any one of the above, and further comprising: Lift guide rail, used for installation inside the car door; A glass bracket is slidably mounted on the lifter guide rail and is used to fix the vehicle window glass; A steel wire rope is wound around the pulley, and one end of the steel wire rope is connected to the glass bracket; A drive assembly is connected to the other end of the wire rope; The mounting portion is provided at the upper or lower end of the lifting guide rail and / or the upper or lower end of the lifting door panel, and the emergency unlocking pulley assembly is installed at the mounting portion; Under normal conditions, the wire rope is kept taut under the guidance of the emergency unlocking pulley assembly, and the drive assembly drives the glass bracket to slide along the lifter guide rail via the wire rope; In an emergency, the limiting component is triggered, the emergency unlocking pulley assembly disengages from the mounting part, the wire rope loosens, and the constraint between the glass bracket and the wire rope is released.

[0016] In some embodiments, a wire rope tensioner is also included, which is disposed on the path of the wire rope and is used to automatically tighten the loosened wire rope after the emergency unlocking pulley assembly disengages, so that the glass bracket drives the vehicle window glass to automatically descend a preset distance.

[0017] Compared with the prior art, the emergency unlocking pulley assembly and window regulator provided by the present invention have the following advantages: In this invention, by incorporating elastic elements and releasable limiting elements, the pulley assembly can reliably tension the steel wire rope under normal conditions, ensuring the normal operation of the window regulator. In an emergency, simply triggering the limiting element releases the restriction on the pulley bracket, and the elastic element instantly springs the pulley bracket and pulley together away from the mounting part, causing the steel wire rope to lose its constraint and loosen, thereby releasing the steel wire rope from the glass bracket and allowing the window glass to slide freely within the guide groove. Even in extreme situations such as a complete vehicle power outage, door lock deformation, or motor lockup, occupants can still quickly access an escape window through simple operation. Its simple structure and high reliability enhance the vehicle's emergency rescue capabilities in sudden accidents. Attached Figure Description

[0018] The optional embodiments of the present invention will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further illustrate the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0019] Figure 1 This is a cross-sectional view of an optional embodiment of the emergency unlocking pulley assembly of the present invention; Figure 2 This is an exploded structural diagram of an optional embodiment of the emergency unlocking pulley assembly of the present invention; Figure 3 This is a schematic diagram of the cable assembly in an optional embodiment of the present invention; Figure 4 This is a schematic diagram of the emergency unlocking pulley assembly in a separated state according to an optional embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of an optional embodiment of the present invention, showing the combination of a pulley and a pulley bracket; Figure 6 This is a cross-sectional view of an emergency unlocking pulley assembly, which is another optional embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a cable drive assembly according to an optional embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of an optional embodiment of the window regulator of the present invention; Figure 9 This is a schematic diagram of the structure of a window regulator, which is another optional embodiment of the present invention.

[0020] Explanation of icon numbers: 1. Pulley bracket, 11. Pin hole, 12. Pulley guard structure, 13. Positioning column, 14. Stepped support platform, 2. Pulley, 21. Shaft pin, 3. Elastic element, 4. Limiting element, 41. Pin, 42. Cable body, 43. Sheath, 44. Cable fixing sleeve, 45. Cover, 46. Cable drive assembly, 461. Emergency motor, 462. Winding wheel, 5. Lifter guide rail, 51. Mounting part, 51. Mating slot, 512. Countersunk hole, 513. Gasket, 5131. Riveting feature, 5132. Hook structure, 5132. Insert nut, 514. Fixing structure, 515. Slot structure, 516. Glass bracket, 52. Drive assembly, 53. Wire rope, 54. Wire rope tensioner, 55. Lifter door panel, 6. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0022] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0023] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In one embodiment, refer to the appendix to the specification. Figures 1 to 4The present invention provides an emergency unlocking pulley assembly for installation on a window regulator and guiding a steel wire rope. The assembly includes: a pulley bracket 1, a pulley 2, an elastic element 3, and a limiting element 4. The pulley bracket 1 is disposed on the mounting portion 51 of the window regulator. The pulley 2 is rotatably or fixedly mounted on the pulley bracket 1 and is used to carry and guide the steel wire rope 54. The pulley 2 can be configured as a movable pulley or a fixed pulley. The elastic element 3 is disposed between the pulley bracket 1 and the mounting portion 51 and applies an elastic force away from the mounting portion 51 to the pulley bracket 1. The limiting element 4 releasably acts on the pulley bracket 1 and, under normal conditions, overcomes the elastic force of the elastic element 3 and limits the pulley bracket 1 to the mounting portion 51. When the limiting element 4 is triggered and releases the limiting of the pulley bracket 1, the elastic element 3 drives the pulley bracket 1, along with the pulley 2, to detach from the mounting portion 51, causing the steel wire rope 54 to lose its constraint and loosen.

[0027] In this embodiment, by setting the elastic element 3 and the releasable limiting element 4, the pulley assembly can reliably tension the steel wire rope 54 under normal conditions, ensuring the normal use of the window regulator. In an emergency, simply triggering the limiting element 4 can release the limiting of the pulley bracket 1. The elastic element 3 instantly springs the pulley bracket 1 and the pulley 2 away from the mounting part 51, causing the steel wire rope 54 to lose its constraint and loosen, thereby releasing the steel wire rope 54 from the glass bracket, allowing the window glass to slide freely in the guide groove. Even in extreme situations such as a power outage, door lock deformation, or motor lockup, the occupants can still quickly access the escape window through simple operation. Its structure is simple and highly reliable, improving the vehicle's emergency rescue capability in sudden accidents.

[0028] In one embodiment, refer to the appendix to the specification. Figures 1 to 4 The limiting member 4 includes a pin 41. The pulley bracket 1 has a pin hole 11 for the pin 41 to pass through. The mounting part 51 has a mating groove 511 corresponding to the pin hole 11. The pin 41 passes through both the pin hole 11 and the mating groove 511 to restrict the pulley bracket 1 from moving in the disengagement direction.

[0029] The limiting component 4 also includes a cable assembly, one end of which is connected to the pin 41, and the other end extends to an occupant-operable position or connects to an occupant-operable structure, for pulling the pin 41 out of the pin hole 11 under external force; the cable assembly includes a cable body 42, a sheath 43 sleeved on the outside of the cable body 42, and a cable fixing sleeve 44 fixed to one end of the cable body 42, the cable fixing sleeve 44 being connected to the mounting part 51, and the other end of the cable body 42 being provided with a pull ring or a buckle; the cable assembly also includes a cover 45, through which the cable body 42 passes and extends to the outside of the door sheet metal.

[0030] In this embodiment, the unlocking operation of the pin 41 is extended to a position accessible to the occupants inside the vehicle by means of the cable assembly. The occupants only need to pull the pull ring or the buckle to pull the pin 41 out of the pin hole 11 through the cable body 42, thereby realizing the rapid release of the pulley assembly. The sheath tube 43 provides effective protection for the cable body 42, preventing it from interfering with or wearing with surrounding components and providing guidance. The plug 45 seals and guides the cable body 42 at the point where it passes through the sheet metal.

[0031] Further, refer to the attached instruction manual. Figure 7 The emergency unlocking pulley assembly also includes a cable drive assembly 46, which includes an emergency motor 461 and a winding wheel 462 driven by the emergency motor 461. The cable body 42 is wound around the winding wheel 462. The emergency motor 461 is powered by the vehicle's emergency power supply to drive the winding wheel 462 to rotate and pull the cable body 42, thereby pulling out the pin 41. The emergency motor 461 can be directly fixed to the lifter door panel, or a mounting bracket can be provided on the lifter door panel to achieve fixed installation of the emergency motor 461. The pin 41 is pulled out by electric drive. When the vehicle loses power, the emergency power supply can power the emergency motor 461, drive the winding wheel 462 to rotate and automatically pull the cable assembly to pull out the pin 41, thus unlocking and releasing the pulley assembly without manual operation by the occupants.

[0032] In one embodiment, refer to the appendix to the specification. Figures 1 to 5 The pulley 2 is mounted on the pulley bracket 1 via a pin 21. The pin 21 can be a pin screw, a press-fit pin, a spin-fit pin, or other components with the same function. The pulley 2 can be fixed to the pulley bracket 1 by self-tapping, press-fitting, spin-fitting, or other methods. The pulley bracket 1 may be provided with a pulley guard structure 12 and a positioning post 13. The pulley guard structure 12 is used to prevent the wire rope 54 from jumping, and the positioning post 13 is used for the installation and positioning of the pulley bracket 1.

[0033] The mounting section 51 is provided with a countersunk hole 512, and the elastic element 3 is accommodated in the countersunk hole 512. One end of the elastic element 3 abuts against the bottom wall of the countersunk hole 512, and the other end abuts against the pulley bracket 1. The elastic element 3 is a spring, a metal sheet, or other elastic component. The countersunk hole 512 can be a stepped countersunk hole. The pulley bracket 1 is provided with a stepped support platform 14 adapted to the stepped countersunk hole. The stepped support platform 14 is used to concentrate the tensile torque generated when the wire rope is stalled at the stepped support platform 14, so as to reduce the torque borne by the pin 41.

[0034] The mounting part 51 is also provided with a gasket 513, which surrounds and is fixed around the countersunk hole 512 to improve the torsional strength at the countersunk hole 512. The gasket 513 is provided with a riveting feature 5131 and / or a rivet hole for riveting and fixing to the mounting part 51. The gasket 513 is also provided with a hook structure 5132 for positioning the gasket 513 and preventing the gasket 513 from lifting during assembly. The mounting part 51 is provided with an insert nut 514 for fixing to the door sheet metal. The mounting part 51 is also provided with a cable assembly fixing structure 515, which is a snap or snap hole for fixing the cable fixing sleeve.

[0035] Reference manual attached Figure 6 The mounting section 51 is also provided with a recessed structure 516, which is located below the recessed hole 512. This recessed structure 516 is used to shorten the ejection path of the pulley bracket 1 in the thickness direction of the window regulator. This allows the pulley assembly to quickly disengage from the mounting position with a smaller stroke, ensuring smooth ejection even in compact vehicles with a small gap between the window and the regulator.

[0036] The assembly process of the emergency unlocking pulley assembly is as follows: the pulley 2 is fixed to the pulley bracket 1 by means of self-tapping, press riveting, or spin riveting using axle pins, press riveting pins, or spin riveting pins; the shim 513 is fixed to the mounting part 51 of the lifter by means of rivet, press riveting, or spin riveting; the elastic element 3 is placed in the countersunk hole 512 of the mounting part 51; the pulley assembly is installed into the countersunk hole 512 and the elastic element 3 is compressed by tooling or manual operation; the pin 41 is simultaneously inserted into the pin hole 11 of the pulley bracket 1 and the mating groove 511 of the mounting part 51, so that the pulley bracket 1 is limited to the mounting part 51 under the elastic force of the elastic element 3; the cable body 42 of the cable assembly is connected to the pin 41, the sheath 43 is sleeved on the outside of the cable body 42, and the end of the cable body 42 passes through the plug 45 and extends to the outside of the door sheet metal, thus completing the arrangement of the cable assembly. If an electric drive method is used, the cable assembly is further assembled and connected to the winding wheel 462 of the cable drive assembly 46.

[0037] According to another aspect of the invention, reference is made to the appended specification. Figure 8The present invention further provides a vehicle window regulator, including an emergency unlocking pulley assembly as described in any one of the above, and further including: a regulator guide rail 5, a glass bracket 52, a drive assembly 53, and a steel wire rope 54. The regulator guide rail 5 is used to be installed on the vehicle door sheet metal or integrally formed on the regulator door panel 6; the glass bracket 52 is slidably disposed on the regulator guide rail 5 for fixing the vehicle window glass; the steel wire rope 54 is wound around the pulley 2, one end of the steel wire rope 54 is connected to the glass bracket 52, and the drive assembly 53 is connected to the other end of the steel wire rope 54. Connection; The upper or lower end of the lift guide rail 5 or the upper or lower end of the lift door panel 6 is provided with an installation part 51, and the emergency unlocking pulley assembly is installed at the installation part 51; Under normal conditions, the wire rope 54 is kept taut under the guidance of the emergency unlocking pulley assembly, and the drive assembly 53 drives the glass bracket 52 to slide along the lift guide rail 5 through the wire rope 54; In an emergency, the limit member 4 is triggered, the emergency unlocking pulley assembly is disengaged from the installation part 51, the wire rope 54 is released, and the constraint between the glass bracket 52 and the wire rope 54 is released.

[0038] Further, refer to the attached instruction manual. Figure 9 The window regulator also includes a wire rope tensioner 55, which is located on the path of the wire rope 54 and is used to automatically tighten the loose wire rope 54 after the emergency unlocking pulley assembly is disengaged, so that the glass bracket 52 drives the window glass to automatically descend a preset distance.

[0039] When the pulley assembly disengages, causing the wire rope 54 to loosen, the wire rope tensioner 55 can actively tighten the loose wire rope 54. The shortening of the wire rope 54 causes the glass bracket and the window glass to automatically drop a certain distance, providing the occupants with a larger initial escape opening and more ample evacuation space.

[0040] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0041] It should be noted that the above embodiments can be freely combined as needed. The above are merely optional embodiments of the present invention. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An emergency unlocking pulley assembly for mounting on a vehicle window regulator and guiding a steel wire rope, characterized in that, include: A pulley bracket is installed at the mounting part of the window regulator; A pulley, rotatably or fixedly mounted on the pulley bracket, is used to support and guide the wire rope; An elastic element is disposed between the pulley bracket and the mounting portion, for applying an elastic force to the pulley bracket away from the mounting portion; A limiting member, releasably acting on the pulley bracket, is used to overcome the elastic force of the elastic member and limit the pulley bracket to the mounting portion under normal conditions; When the limiting member is triggered and releases the limiting on the pulley bracket, the elastic member drives the pulley bracket and the pulley to disengage from the mounting part, causing the wire rope to lose its constraint and loosen.

2. The emergency unlocking pulley assembly according to claim 1, characterized in that, The limiting component is a pin. The pulley bracket has a pin hole for the pin to pass through, and the mounting part has a matching groove corresponding to the pin hole. The pin passes through both the pin hole and the matching groove to restrict the pulley bracket from moving in the disengagement direction.

3. The emergency unlocking pulley assembly according to claim 2, characterized in that, It also includes a cable assembly, one end of which is connected to the pin and the other end extends to an occupant-operable position inside the vehicle or to a occupant-operable structure, for pulling the pin out of the pin hole under external force; The cable assembly includes a cable body, a sheath sleeve fitted on the outside of the cable body, and a cable fixing sleeve fixed to one end of the cable body. The cable fixing sleeve is connected to the mounting part, and the other end of the cable body is provided with a pull ring or a buckle. The cable assembly also includes a plug, through which the cable body passes and extends to the exterior of the door sheet metal.

4. The emergency unlocking pulley assembly according to claim 3, characterized in that, It also includes a cable drive assembly, which includes an emergency motor and a winding reel driven by the emergency motor. The cable assembly is wound on the winding reel. The emergency motor is powered by the vehicle's emergency power supply to drive the winding reel to rotate and pull the cable assembly to pull out the pin.

5. The emergency unlocking pulley assembly according to claim 1, characterized in that, The pulley is mounted on the pulley bracket by a pin, which is a pin screw, a press-fit pin, or a spin-fit pin. The pulley is fixed to the pulley bracket by self-tapping, press-fitting, or spin-fitting. The pulley bracket is provided with a pulley guard structure and / or a positioning post. The pulley guard structure is used to prevent the wire rope from jumping, and the positioning post is used for the installation and positioning of the pulley bracket.

6. The emergency unlocking pulley assembly according to claim 2, characterized in that, The mounting part is provided with a countersunk hole, and the elastic element is accommodated in the countersunk hole. One end of the elastic element abuts against the bottom wall of the countersunk hole, and the other end abuts against the pulley bracket. The elastic element is a spring or a metal sheet.

7. The emergency unlocking pulley assembly according to claim 6, characterized in that, The countersunk hole is a stepped countersunk hole, and the pulley bracket is provided with a stepped support platform that is adapted to the stepped countersunk hole. The stepped support platform is used to concentrate the tensile torque generated when the wire rope is stalled at the stepped support platform, so as to reduce the torque borne by the pin.

8. The emergency unlocking pulley assembly according to claim 6, characterized in that, The mounting part is also provided with a gasket, which surrounds the countersunk hole and is fixedly installed to improve the torsional strength at the countersunk hole; The gasket is provided with riveting features and / or rivet holes for riveting and fixing to the mounting part; The gasket is also provided with a hook structure for positioning the gasket and preventing the gasket from tilting during assembly.

9. The emergency unlocking pulley assembly according to claim 6, characterized in that, The mounting part is equipped with an insert nut for fixing to the door sheet metal; The mounting part is also provided with a fixing structure for the cable assembly, which is a buckle or buckle hole for fixing the cable fixing sleeve; The mounting part is also provided with a recessed groove structure, which is located below the recessed hole and is used to shorten the pop-out path of the pulley bracket in the thickness direction of the window regulator.

10. A car window regulator, characterized in that, Including the emergency unlocking pulley assembly as described in any one of claims 1-9, further comprising: Lift guide rail, used for installation inside the car door; A glass bracket is slidably mounted on the lifter guide rail and is used to fix the vehicle window glass; A steel wire rope is wound around the pulley, and one end of the steel wire rope is connected to the glass bracket; A drive assembly is connected to the other end of the wire rope; The mounting portion is provided at the upper or lower end of the lifting guide rail and / or the upper or lower end of the lifting door panel, and the emergency unlocking pulley assembly is installed at the mounting portion; Under normal conditions, the wire rope is kept taut under the guidance of the emergency unlocking pulley assembly, and the drive assembly drives the glass bracket to slide along the lifter guide rail via the wire rope; In an emergency, the limiting component is triggered, the emergency unlocking pulley assembly disengages from the mounting part, the wire rope loosens, and the constraint between the glass bracket and the wire rope is released.

11. The window regulator according to claim 10, characterized in that, It also includes a wire rope tensioner, which is installed on the path of the wire rope and is used to automatically tighten the loose wire rope after the emergency unlocking pulley assembly is disengaged, so that the glass bracket drives the car window glass to automatically descend a preset distance.

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