Multifunctional locking and limiting system for automobile side window and automobile

Abstract

The invention discloses an automobile side window multifunctional locking and limiting system and an automobile. The automobile side window multifunctional locking and limiting system comprises a locking system and a limiting stopper system. The locking system is used for locking the side-opening window at a closed position and comprises a lock body assembly arranged on the side-opening window and a lock pin arranged on a vehicle body, and the lock body assembly can be detachably locked with the lock pin. The limiting stopper system is used for limiting the opening angle of the side window and comprises a sliding rod connected with the side window and a vehicle body and a sliding groove fixing base arranged on the vehicle body or a window frame. One end of the sliding rod is connected to the side window in a pivoted mode, the other end of the sliding rod is provided with a sliding boss, and the sliding boss can slide in a sliding groove formed in the sliding groove fixing base. The three core functions of driving ventilation, parking ventilation and emergency escape are ingeniously integrated into a whole, a user can achieve switching of multiple modes through one system, and diversified use requirements are met.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicles, and specifically discloses a multifunctional locking and limiting system for a side window of an automobile and a vehicle. Background Art

[0002] For automobiles, especially some commercial vehicles, buses, and specialized vehicles, side windows must not only meet daily ventilation needs but also function as emergency escape vehicles in emergencies. Currently, the main design options for these multifunctional side windows include flip-up emergency windows. These typically have hinges located at the top of the window. These windows are opened by operating a handle located at the bottom or side of the window, with the aid of a gas strut or other assist mechanism. This design serves as an emergency exit and also provides ventilation for the vehicle interior while driving or parked.

[0003] However, in the prior art, the locking and limiting functions of these side windows still have some deficiencies in design and implementation.

[0004] On the one hand, many side-opening windows lock by rotating the handle and directly engaging it with the window frame. This locking method causes repeated friction between the handle and the window frame during frequent opening and closing operations, which can easily lead to wear and tear after long-term use, resulting in loose locking or even sticking. This not only affects the user experience, but also poses safety risks and additional maintenance costs.

[0005] In order to solve the stability problem of the operating mechanism, some improvement schemes have emerged. For example, Chinese patent CN117661941A discloses a handle structure and a car window. The handle structure of this scheme is provided with a locking assembly, so that the handle can be stably locked whether the window is in the open or closed position, avoiding the handle from accidentally rotating due to vibration. However, the internal structure of the handle of this scheme is relatively complex, and its locking parts and matching parts still have the risk of wear and tear during long-term use. More importantly, this scheme mainly focuses on solving the stability of the handle itself, and does not provide a multi-angle, graded limit function that can achieve different ventilation modes (such as driving ventilation and parking ventilation).

[0006] On the other hand, to prevent damage caused by excessive window opening angles, some designs incorporate limiter mechanisms. For example, Chinese patent CN106639726B discloses a window opening lock mechanism that uses a hydraulic rod to drive a hinge assembly to open the window. A limiter rod is located within the hinge assembly to prevent excessive hinge rotation. However, a disadvantage of this structure is that the limiter rod, a key limiting component, is susceptible to wear and even breakage after repeated impact and pressure. If the limiter rod fails, the hinge assembly will not be effectively restrained, potentially causing damage due to excessive window opening, or failure to accurately reset and lock the window, thus compromising the reliability and safety of the entire mechanism. Furthermore, this structure typically only provides a single limit opening position, failing to meet the flexible requirements for different opening angles in different vehicle usage scenarios (such as slightly open ventilation during driving and wide-angle ventilation during parking). It also fails to effectively integrate multi-angle ventilation with emergency escape functions.

[0007] In summary, existing automotive side window technologies still have room for improvement in terms of achieving reliable and durable locking, multifunctional opening position limiting, and emergency escape functionality. Existing solutions are either unreliable due to structural fragility or unable to meet diverse usage requirements due to limited functionality. Therefore, a structurally reliable and comprehensive automotive side window locking and limiting system is urgently needed to address these issues. Summary of the Invention

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional locking and limiting system for automotive side windows, comprising a locking system and a limiter system. By combining a multi-stage limiting slide with an escape position, this system cleverly integrates three core functions: driving ventilation, parking ventilation, and emergency escape. Users can switch between multiple modes through a single system, meeting diverse usage needs.

[0009] The present invention discloses a multifunctional locking and limiting system for a side-opening window of an automobile, which includes a locking system for locking the side-opening window in a closed position, the locking system including a lock body assembly provided on the side-opening window and a lock column pin provided on the vehicle body, the lock body assembly being detachably locked with the lock column pin; a limiter system for limiting the opening angle of the side-opening window, the limiter system including a sliding rod connecting the side-opening window and the vehicle body and a slide groove fixing base provided on the vehicle body or the window frame, one end of the sliding rod being pivotally connected to the side-opening window and the other end having a sliding boss, the sliding boss being able to slide in a slide groove provided on the slide groove fixing base; wherein, the slide groove is provided with at least one limiting gear for ventilation, and an escape position allowing the sliding boss to disengage from the slide groove to allow the side-opening window to be fully opened.

[0010] As a preferred embodiment of the present invention, the at least one limiting gear for ventilation includes: a first gear for driving ventilation and a second gear for parking ventilation, and the side window opening angle corresponding to the second gear is greater than the side window opening angle corresponding to the first gear.

[0011] As a preferred solution of the present invention, the locking pin has a mating surface that cooperates with the vehicle body, and the mating surface is a tapered surface for increasing the contact area and friction between the locking pin and the vehicle body when the locking pin is tightened.

[0012] As a preferred embodiment of the present invention, the locking system also includes a lock pin nut box fixed to the vehicle body and a lock pin nut plate accommodated in the lock pin nut box; the lock pin is fixed on the lock pin nut plate, and the lock pin nut plate can float in the cavity formed by the lock pin nut box to provide tolerance for the installation position.

[0013] As a preferred embodiment of the present invention, the lock body assembly is provided with a pawl hole for the lock pin to pass through, and the lock pin has a mounting end for operational installation, and the size of the mounting end is larger than the size of the pawl hole to prevent the lock body assembly from falling out along the axial direction of the lock pin.

[0014] As a preferred solution of the present invention, an unlocking handle for unlocking is integrated on the lock body assembly.

[0015] As a preferred solution of the present invention, the limiter system further includes a window end fixing seat fixed on the side window, and one end of the slide rod is pivotally connected to the window end fixing seat via a slide rod rotation axis.

[0016] As a preferred solution of the present invention, the locking system is arranged at the rear of the side window, and the limiter system is arranged at the bottom of the side window.

[0017] The invention also discloses a vehicle, which comprises a multifunctional locking and limiting system for the vehicle side windows.

[0018] As a preferred solution of the present invention, the hinge of the side window is arranged at the front thereof, so that the side window opens in a manner of opening outward from the rear.

[0019] The beneficial effects of the present invention are as follows: it achieves a high degree of functional integration, enabling a single window to serve multiple purposes. By combining a multi-level limit slide with an escape position, the design cleverly integrates the three core functions of driving ventilation, parking ventilation, and emergency escape into one. Users can switch between multiple modes through a single system, meeting diverse usage needs. Secondly, the present invention boasts a reliable and durable structure. The locking and limiting functions are performed by separate systems, avoiding excessive wear on a single mechanism. The locking system utilizes a tapered mating surface to increase the contact area and friction, making the locking more secure. The limiter system limits the position through surface contact between the slide rod and the slide, providing more uniform force and less prone to wear and fracture, significantly improving the overall reliability and service life of the system. Finally, the present invention offers high safety and convenient operation. When closed, the locking system effectively prevents unauthorized intrusion. In an emergency, simply push the window open to disengage the limiter, quickly opening the escape route. Operation is intuitive and quick. Furthermore, the integrated operating handle simplifies componentry, making daily switching operations more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the scope of protection of the present invention.

[0021] Figure 1 2 is a structural schematic diagram of a vehicle window in a closed state in an embodiment of the present invention.

[0022] Figure 2 2 is a structural schematic diagram of an embodiment of the present invention in which a vehicle window is in an open state.

[0023] Figure 3 This is a diagram of the window locking system.

[0024] Figure 4 This is a schematic diagram of the window limit system.

[0025] Figure 5 yes Figure 4 AA cross-sectional view.

[0026] Figure 6 3 is a schematic diagram of a state in which a vehicle window is opened to the first gear position (driving ventilation position) in an embodiment of the present invention.

[0027] Figure 7 3 is a schematic diagram of a state in which a vehicle window is opened to the second gear position (parking ventilation position) in an embodiment of the present invention.

[0028] Figure 8 3 is a schematic diagram of a state in which a vehicle window is opened to the third gear position (emergency escape position) in an embodiment of the present invention.

[0029] In the figure, 100, locking system; 101, lock body assembly; 101-1, unlocking handle; 102, lock pin; 102-1, mounting end; 102-2, mating surface; 103, lock pin nut plate; 104, lock pin nut box; 105, mounting bolt; 200, limiter system; 201, slide fixing base; 202, slide bar; 202-1, slide bar rotation axis; 202-2, sliding boss; 203, window end fixing seat; 204, slide bar; 204-1, first gear; 204-2, second gear; 204-3, escape position. DETAILED DESCRIPTION

[0030] The following further describes the technical solutions (including preferred technical solutions) of the present invention through accompanying drawings and by enumerating some optional embodiments of the present invention. It should be understood that the embodiments described are merely some, and not all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present invention and are not intended to limit the present invention. Various modifications and improvements made by those skilled in the art under the guidance of the present invention's concept should all be included within the scope of protection of the present invention.

[0032] The present invention provides a multifunctional side window locking and limiting system designed specifically for automobiles, particularly commercial vehicles, buses, RVs, and various specialized vehicles. The system's core design philosophy is to modularly separate and organically combine a highly reliable locking function with a multi-mode limiting function, thereby addressing numerous existing issues, including easy wear of the locking mechanism, limited limiting functionality, inconvenient emergency escape, and insufficient overall reliability.

[0033] like Figure 1 and Figure 2 As shown, the windows of the system of the present invention are in a completely closed and locked state. At this time, the windows are tightly fitted to the vehicle body, and have excellent sealing and safety. Figure 2 The system of the present invention mainly consists of two core subsystems: the first is the locking system 100, which is responsible for firmly locking the window to the vehicle body; the second is the limiter system 200, which is responsible for providing different opening angle restrictions during the window opening process and also has an emergency escape function.

[0034] In the preferred embodiment, the locking system 100 is usually arranged at the rear part of the side window relative to the driving direction of the vehicle, while the limiter system 200 is arranged at the lower part of the side window. Correspondingly, the hinge diagram of the window is not shown and arranged at the front part of the side window. Such a layout makes the side window open in a way that the rear part is outward, which is in line with the usage habits and aerodynamic requirements of most vehicles, and can effectively guide the airflow when the vehicle is ventilated, avoiding strong wind directly pouring into the vehicle. The two subsystems work together to form a complete technical solution with powerful and safe and reliable functions.

[0035] The locking system 100 of the present application is the key to ensure the safety of the window in the closed state. Its design goal is not only to achieve reliable locking, but also to ensure that it can maintain its structural integrity and functional effectiveness under long-term frequent use and potential external violent destruction.

[0036] As Figure 3As shown, the lock assembly 101 of the locking system 100 of the present invention is the actuator mounted on the movable sash of a side-opening window. It utilizes a mature, stable card lock or pawl lock structure. It typically contains a spring-driven pawl or bolt. When the window is closed, the pawl automatically or through manipulation engages with a locking pin 102 fixed to the vehicle body, completing the locking process. A significant design optimization is the direct integration of an unlocking handle 101-1 into the lock assembly 101. This integrated design eliminates the traditional layout of a separate lock body and opening handle, offering multiple benefits: First, it reduces the number of parts and simplifies the assembly process, thereby lowering manufacturing costs and potential failure points. Second, it reduces the overall weight of the window, which is beneficial for modern automotive design, which prioritizes lightweight design. Third, by combining the unlocking and opening actions into one, the user only needs to operate a single handle to unlock the window, creating a clear operational logic and a more convenient and intuitive user experience. The housing of the lock assembly 101 can be precision-injected from high-strength engineering plastics, such as reinforced nylon PA66+GF, to achieve a lightweight and complex internal structure. Key internal load-bearing components, such as the pawl, can be constructed from high-strength metal materials, such as powder metallurgy or die steel, to ensure wear and impact resistance. The locking pin 102, a mating component fixed to the vehicle body, serves as the locking element for the lock assembly 101. The sophistication of its design directly impacts the stability and damage resistance of the entire locking system. The locking pin 102 of the present invention incorporates several key innovative design features: The end of the locking pin 102 facing away from the vehicle body is designed as a mounting end 102-1. This end typically features a specific shape for tool access, such as a hexagonal or hexagonal socket, enabling tightening with a standard wrench during installation and commissioning. More importantly, the outer dimensions of the mounting end 102-1 are intentionally larger than the pawl hole, the through-hole through which the pawl passes within the lock assembly 101. This is a crucial safety feature. Its function is that even in extreme situations, such as a severe collision that causes a certain degree of deformation of the window or lock body assembly 101, or an attempt by an illegal person to pry open the window from the outside, the larger mounting end 102-1 can act as a stopper, effectively preventing the lock body assembly 101 from sliding along the axial direction of the lock pin 102. This design greatly enhances the window's anti-theft and anti-prying capabilities, ensuring the safety of property and passengers in the vehicle.

[0037] The mating surface 102-2 of the lock pin 102 of the present invention, which is close to the root of the vehicle body, is innovatively designed as a conical surface. This is in sharp contrast to the cylindrical design of the traditional lock pin and brings excellent technical effects. When the lock pin 102 is tightened through the mounting end 102-1, this conical mating surface will produce a wedge effect with the corresponding mounting hole or washer on the vehicle body. According to the principles of physics, the wedge structure can efficiently decompose the axial tightening force into a huge radial pressing force. This creates a huge positive contact pressure between the lock pin 102 and the vehicle body, resulting in a sharp increase in friction. The huge friction makes it almost impossible for the lock pin 102 to loosen or move under various vibration and bump conditions during vehicle driving, ensuring the absolute stability of the locking point. In addition, compared with line contact or point contact, the conical surface contact can distribute stress more evenly over a larger contact area, effectively avoiding stress concentration. This is crucial for resisting external forces such as hammering and pulling, preventing shear fracture at the base of the locking pin 102 due to stress concentration, significantly increasing its ultimate strength to withstand damage. The locking pin 102 body is preferably manufactured from high-strength alloy steel, such as 40Cr, and undergoes tempering heat treatment and surface treatments such as zinc / chrome plating for corrosion and wear resistance to withstand harsh operating environments.

[0038] In order to solve the problem of inevitable tolerance accumulation in actual production assembly, the present invention introduces an ingenious floating mounting structure. The structure consists of a lock pin nut plate 103 and a lock pin nut box 104. Specifically, the lock pin nut box 104 is a box-shaped or frame-shaped part that is firmly fixed to the body sheet metal by mounting bolts 105. A cavity of a specific size is formed inside the nut box. The lock pin nut plate 103 is a plate-shaped part with an internal threaded hole, and its outer dimensions are slightly smaller than the internal cavity size of the nut box 104. During assembly, the lock pin nut plate 103 is accommodated in the cavity of the nut box 104, and the lock pin 102 is screwed into the threaded hole on the nut plate 103 through its threaded rod. This design allows the lock pin nut plate 103, together with the lock pin 102 fixed thereon, to float slightly within the two-dimensional plane defined by the lock pin nut box 104, usually in the up and down and left and right directions. This floating amount is the difference between the inner dimensions of the nut box and the outer dimensions of the nut plate. Its technical effect is significant: on the vehicle assembly line, due to the superposition of multiple factors such as the manufacturing tolerances of the body sheet metal and the installation position tolerances of the windows, there is almost always a slight deviation between the precise position of the lock pin 102 fixed to the body and the precise position of the lock body assembly 101 installed on the window sash. Without this floating mechanism, this deviation will cause the lock body and the lock pin to interfere and get stuck when closing, making operation difficult and even unable to lock normally, and will also accelerate abnormal wear of the components. With this floating installation structure, when the window is closed, the guide port of the lock body assembly 101 will first contact the lock pin 102, and guide the lock pin 102 together with the nut plate 103 on which it is located to automatically find the most matching and most centered position in the cavity of the nut box 104. This adaptive centering capability perfectly compensates for manufacturing and assembly tolerances, ensuring that every window closing and locking action is as smooth as silk, greatly improving the product quality and user experience, while also reducing the stringent requirements for assembly accuracy on the production line.

[0039] The limiter system 200 is the core of the multifunctionality of the present invention. It not only provides a convenient ventilation mode for daily use, but also takes on the important task of opening a life passage in critical moments. The core of its design lies in a specially shaped slide groove, which, through cooperation with the slide rod, realizes the multi-level limit and final release functions. Figures 4 to 8As shown. The main components of the limiter system 200 include: a slide fixing base 201. The slide fixing base 201 is a base component, usually made of metal plate stamping or profile cutting. The slide fixing base 201 is firmly mounted on the window frame or body structure below the window by means of screws or rivets. The core component of this system, the slide 204, is processed on it. The slide rod 202 is a connecting rod connecting the window to the body. One end of the slide rod is pivotally connected to the window end fixing seat 203 through the slide rod rotating shaft 202-1, and the window end fixing seat 203 is fixed to the lower edge of the window sash. This pivot connection allows the slide rod 202 to rotate freely around the axis as the window is opened. The other end of the slide rod 202 is provided with a key structural feature, a sliding boss 202-2. This boss has been carefully designed in shape, and can be cylindrical, hemispherical, or a mushroom-shaped flange. Its function is to slide along a chute 204 on the chute fixing base 201 during window opening and closing, engaging with a specific position within the chute. The chute 204 is the core of the present invention's multifunctional position control. It is a groove with a unique profile on the chute fixing base 201. Its contour is not a simple straight line, but rather a series of carefully designed notches and slopes.

[0040] In this preferred embodiment, the contour of the slide groove 204 defines three main working modes: the first gear 204-1 - driving ventilation mode, such as Figure 6 As shown, this is the first retaining notch on the slide 204. When the user pushes the window open a short distance, the sliding boss 202-2 of the slide bar 202 slides into this notch and clicks into place. At this point, the window is restricted to a narrow opening angle. This angle is optimized to meet the vehicle's ventilation needs while driving. Its advantages include: a small opening effectively prevents excessive airflow from entering the vehicle, causing excessive wind noise and discomfort; the opening angle is narrow enough for an adult or child to extend their head out of the window, ensuring driving safety; and this small gap effectively prevents outsiders from reaching inside and stealing property while the vehicle is waiting. The notch is designed with gentle entry and exit ramps, allowing the sliding boss 202-2 to enter and exit smoothly, yet its depth is sufficient to withstand normal vehicle vibrations and prevent it from easily falling out.

[0041] Second gear 204-2——parking ventilation mode, such as Figure 7As shown, if the window is pushed outward from the first position, the sliding boss 202-2 will pass over a smooth slide rail and then engage the second limit notch, i.e., the second position 204-2. At this point, the window opening angle is significantly increased. This mode is mainly used for ventilation when the vehicle is parked, such as at a campsite or parking lot. The larger opening can promote rapid convection of air inside and outside the vehicle, effectively reducing the temperature inside the vehicle, expelling hot air and odors, and improving parking comfort. Similarly, the notch depth of this position has been calculated to stably maintain the window in this position and resist normal wind forces.

[0042] Escape position 204-3 - emergency escape mode, e.g. Figure 8 As shown, this is the end of the slideway 204. Unlike the first two positions, which are "notches," the escape position 204-3 is designed as an open "egress" or "ramp." In normal use, the force exerted by the user pushing the window is typically insufficient for the sliding boss 202-2 to overcome the obstruction of the second position 204-2. However, in an emergency situation, such as a vehicle accident, fire, or drowning, where the door cannot be opened, the occupant can simply push the window outward with all their strength and determination. This powerful thrust is sufficient to force the sliding boss 202-2 out of the notch of the second position 204-2 and completely free itself from the constraints of the slideway at the escape position 204-3 at the end of the slideway. Once the sliding boss 202-2 is free of the slideway, the window's opening angle restriction imposed by the stopper system 200 is completely lifted, allowing the window to be pushed to its maximum physical opening angle, typically determined by the hinges, thereby creating a sufficiently large escape exit and buying valuable time for the occupants to quickly evacuate. This "normally controlled, breakable in emergencies" design perfectly balances the convenience of daily use and safety in extreme situations.

[0043] The complete workflow of the present invention is as follows: When closing and locking the vehicle window, the user pulls the window sash inward. The sliding boss 202-2 slides in the sliding groove 204 toward closing. When the window is about to be fully closed, the guide opening of the lock body assembly 101 first contacts the lock pin 102, and the floating mechanism begins to operate, automatically aligning the lock pin 102. As the window is fully closed, the pawl inside the lock body assembly 101, under the action of the spring, passes over the lock pin 102 and rebounds with a crisp "click," indicating that the window is securely locked. At this point, the vehicle is in the safest, fully enclosed state. When unlocking and opening the vehicle to ventilation mode, the user operates the unlocking handle 101-1 to disengage the pawl inside the lock body assembly 101 from the lock pin 102. Then, gently push the window outward, and the window begins to rotate around the front hinge. Sliding boss 202-2 begins to slide within slot 204. When the user feels slight resistance and hears a click, it indicates that sliding boss 202-2 has entered first position 204-1, and the system enters driving ventilation mode. To achieve greater ventilation when switching to parking ventilation, the user simply pushes the window further outward, causing sliding boss 202-2 to disengage from first position 204-1 and continue sliding until it engages second position 204-2, entering parking ventilation mode. During an emergency escape maneuver, in a simulated emergency scenario, the occupant does not need to perform any delicate maneuvers. Instead, they simply follow their instinctive survival instincts, using their body—such as their shoulders, back, or feet—to align themselves against the inside of the window and exert a sustained, powerful, and explosive outward push. This force forces sliding boss 202-2 out of its final position, second position 204-2, and out of the slot at the escape position 204-3 at the end of the slot. In an instant, the limiter failed and the car window was fully opened, forming an escape route.

[0044] Through the above-mentioned sophisticated structural design and system integration, the present invention has achieved one or more of the following significant beneficial effects compared to the existing technology. The first is the high degree of functional integration, with one window for multiple uses, which enhances product value and user experience. The present invention is no longer a lock or limiter with a single function, but integrates high-strength locking, anti-theft and anti-pry, driving safety ventilation, parking comfort ventilation, and life passage functions in emergency situations into a seamless system. Users can enjoy all-round convenience and safety without having to install or operate multiple different devices, which greatly enhances the practical value and humanized experience of the vehicle side windows. Secondly, the structural reliability is extremely high, it is durable, and the cost of the entire life cycle is reduced. The design of the present invention fully considers the stress and wear of the components. The conical surface lock pin used in the locking system is combined with a floating mounting structure, which not only has a large locking torque and strong anti-vibration and anti-impact capabilities, but also can compensate for assembly tolerances, avoiding early wear and jamming caused by installation accuracy problems. The limiter system utilizes a surface-contact mechanism between a sliding rod and a sliding groove. Compared to traditional thin rod or pin-type limiters, this mechanism offers a larger contact area, more uniform stress distribution, improved wear resistance, and a longer service life. These highly reliable features significantly reduce the frequency and associated costs of repairs and replacements throughout the vehicle's lifecycle. Finally, the system offers exceptional safety, balancing everyday protection with extreme escape scenarios. This invention provides a dual level of safety assurance. In daily use, the robust locking system and limited ventilation position effectively prevent external intrusion and accidents while driving. And in the most critical moments, its unique "breakable" escape design provides a simple, intuitive, and reliable escape route. This design eliminates the need for panicked users to search for and operate a complex unlocking switch; instead, users can simply rely on instinctive force to break through the window and escape, significantly contributing to improved passive safety performance. Furthermore, the floating mounting structure relaxes the precision requirements for the vehicle body and window components, streamlining assembly and debugging processes on the final assembly line and facilitating large-scale, low-cost production. For end users, whether it's daily ventilation or emergency escape, the operating logic is extremely simple and clear, with zero learning cost. These advantages make the technical solution of this invention not only technologically advanced, but also highly feasible and competitive in engineering practice and market application.

[0045] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A multifunctional locking and limiting system for automobile side windows, characterized in that: include: A locking system (100) is used to lock the side window in a closed position, the locking system (100) comprising a lock body assembly (101) provided on the side window and a lock pin (102) provided on the vehicle body, the lock body assembly (101) being detachably locked with the lock pin (102); a limiter system (200) is used to limit the opening angle of the side window, the limiter system (200) comprising a slide bar (202) connecting the side window and the vehicle body and a slide groove fixed on the vehicle body or the window frame. The sliding rod (202) is pivotally connected to the side window at one end and has a sliding boss (202-2) at the other end. The sliding boss (202-2) can slide in a sliding groove (204) provided on the sliding groove fixed base (201); wherein the sliding groove (204) is provided with at least one limiting position for ventilation, and an escape position (204-3) that allows the sliding boss (202-2) to disengage from the sliding groove (204) to fully open the side window.

2. The multifunctional locking and limiting system for automobile side windows according to claim 1, characterized in that: The at least one limited gear for ventilation comprises: a first gear (204-1) for driving ventilation and a second gear (204-2) for parking ventilation, wherein the side window opening angle corresponding to the second gear (204-2) is greater than the side window opening angle corresponding to the first gear (204-1).

3. The multifunctional locking and limiting system for automobile side windows according to claim 1, characterized in that: The locking pin (102) has a mating surface (102-2) mating with the vehicle body, and the mating surface (102-2) is a tapered surface used to increase the contact area and friction force between the locking pin (102) and the vehicle body when the locking pin (102) is tightened.

4. The multifunctional locking and limiting system for automobile side windows according to claim 1 or 3, characterized in that: The locking system (100) further includes a locking pin nut box (104) fixed to the vehicle body and a locking pin nut plate (103) accommodated in the locking pin nut box (104); the locking pin (102) is fixed to the locking pin nut plate (103), and the locking pin nut plate (103) can float in a cavity formed by the locking pin nut box (104) to provide tolerance for the installation position.

5. The multifunctional locking and limiting system for automobile side windows according to claim 1, characterized in that: The lock body assembly (101) is provided with a pawl hole for the lock pin (102) to pass through, and the lock pin (102) has a mounting end (102-1) for operation and installation, and the size of the mounting end (102-1) is larger than the size of the pawl hole to prevent the lock body assembly (101) from falling out along the axial direction of the lock pin (102).

6. The multifunctional locking and limiting system for automobile side windows according to claim 1, characterized in that: An unlocking handle (101-1) for unlocking is integrated on the lock body assembly (101).

7. The multifunctional locking and limiting system for automobile side windows according to claim 1, characterized in that: The limiter system (200) further comprises a vehicle window end fixing seat (203) fixed on the side window, and one end of the slide bar (202) is pivotally connected to the vehicle window end fixing seat (203) via a slide bar rotating shaft (202-1).

8. The multifunctional locking and limiting system for automobile side windows according to claim 1, characterized in that: The locking system (100) is arranged at the rear of the side window, and the limiter system (200) is arranged at the lower part of the side window.

9. A vehicle, characterized in that: The invention comprises a multifunctional locking and limiting system for a side window of an automobile as claimed in any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that The hinge of the side window is arranged at the front portion thereof, so that the side window is opened in a manner that the rear portion opens outward.

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