Auxiliary braking device

Abstract

The embodiment of the utility model relates to the technical field of unmanned driving, and discloses an auxiliary braking device which comprises a supporting seat and an auxiliary braking device. The braking structure comprises an outer sleeve, a braking rod and a triggering device, the outer sleeve is fixedly connected with the supporting seat, the braking rod is movably arranged in the outer sleeve in the axial direction of the outer sleeve, and the end, away from the main driving seat, of the braking rod is in driving fit with the braking pedal; wherein the brake rod is provided with a brake position for driving the brake pedal to generate a brake effect and an initial position for relieving the brake effect of the brake pedal; the trigger device comprises a limiting state and a trigger state, when the trigger device is in the limiting state, the trigger device enables the brake rod to be kept at the initial position, and when the trigger device is in the trigger state, the trigger device drives the brake rod to move to the brake position so as to drive the brake pedal to brake. The auxiliary braking device can solve the problem that an auxiliary braking device in the related technology is difficult to give consideration to quick response and reliability.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of unmanned driving technology, and in particular to an auxiliary braking device. Background Art

[0002] Unmanned driving technology can effectively reduce traffic accidents caused by driver errors, and therefore has become one of the current research focuses in the vehicle field.

[0003] At present, there are two main methods of achieving braking during unmanned driving test experiments: one is to control the transmission device to push the brake pedal through the control system to achieve braking; the other method is for the experimenter sitting in the back seat to manually push the pedal with the help of tools to achieve braking.

[0004] The first method can achieve rapid braking, but the transmission structure is complex, the reliability performance is poor, the control system operation is unstable, and the risk of braking failure is increased; the second method cannot form a rapid response to vehicle braking and has a high error rate. Utility Model Content

[0005] In view of this, an embodiment of the present application provides an auxiliary braking device to solve the problem that the auxiliary braking device in the related art is difficult to achieve both rapid response and reliability.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0007] The embodiment of the present application provides an auxiliary braking device for auxiliary braking of a vehicle, comprising:

[0008] A support seat is arranged between the brake pedal and the main driving seat of the vehicle;

[0009] The brake structure is connected to the support seat, and the support seat supports the brake structure between the brake pedal and the main driver's seat. The brake structure includes an outer sleeve, a brake rod and a trigger device. The outer sleeve is fixedly connected to the support seat, and the brake rod is movably arranged in the outer sleeve along the axial direction of the outer sleeve. The end of the brake rod away from the main driver's seat is driven by the brake pedal.

[0010] The brake lever has a braking position for driving the brake pedal to produce a braking effect and an initial position for releasing the braking effect of the brake pedal;

[0011] The trigger device includes a limit state and a trigger state. When the trigger device is in the limit state, the trigger device keeps the brake rod in the initial position. When the trigger device is in the trigger state, the trigger device drives the brake rod to move to the braking position to drive the brake pedal to brake.

[0012] The auxiliary braking device provided in the embodiment of the present application can be placed between the brake pedal and the main driver's seat of the vehicle. The auxiliary braking device includes a support seat and a braking structure. The support seat is used to ensure the installation stability of the auxiliary braking device in the vehicle. The braking structure is connected to the brake pedal and is used to drive the brake pedal to move between the initial position and the braking position. Specifically, when the vehicle is required to be running, the position of the outer sleeve and the brake rod can be adjusted and the trigger device can be placed in a limited state. At this time, the brake pedal is placed in the initial state and the vehicle can work normally. When the vehicle needs to brake, the experimenter in the vehicle can trigger the trigger device to switch the trigger device from the limited state to the trigger state. At this time, the trigger device can move the brake rod to the braking position, thereby achieving the braking of the vehicle. The auxiliary braking device of the embodiment of the present application adopts a mechanical structure design. The experimenter can drive the brake pedal from the initial position to the braking position by simply triggering the trigger device, so that both rapid response performance and reliability can be taken into account.

[0013] In a possible implementation of the present application, the trigger device includes an elastic member and a limit member, the elastic member is arranged between the outer sleeve and the brake rod, the elastic member pushes the brake rod under the action of the elastic restoring force to make the brake rod move to the braking position, the outer sleeve is provided with a plug-in through hole on the wall, and the brake rod is provided with a slot corresponding to the plug-in through hole;

[0014] When the trigger device is in a limited position, the elastic member is in a compressed state and the limited member is simultaneously inserted into the plug-in through hole and the slot;

[0015] When the trigger device is in a triggering state, the limiting member moves out of the slot and the plug-in through hole and the elastic member is in a released state.

[0016] In a possible implementation of the present application, the outer sleeve has an inner hole, the brake rod is slidably disposed in the inner hole, the inner hole includes a first hole segment and a second hole segment connected to the first hole segment, the aperture of the first hole segment is larger than the aperture of the second hole segment, a first step surface is formed between the first hole segment and the second hole segment, and the plug-in through hole is connected to the first hole segment;

[0017] The brake rod comprises a first rod segment and a second rod segment connected to the first rod segment, the outer diameter of the first rod segment is greater than the outer diameter of the second rod segment, a second step surface is formed between the first rod segment and the second rod segment, and the slot is arranged in the first rod segment;

[0018] The elastic member is arranged between the first step surface and the second step surface.

[0019] In a possible implementation of the present application, the auxiliary braking device further includes a guide limiting structure, which includes a guide hole provided on the outer sleeve and a guide rod provided on the brake rod;

[0020] Among them, the guide hole extends along the axial direction of the outer sleeve and is directly connected to the first hole segment. A first mounting hole is arranged on the outer wall of the first rod segment of the guide rod. The guide rod is passed through the guide hole and connected to the first mounting hole. The guide hole limits the guide rod in the circumferential direction of the brake rod.

[0021] In a possible implementation of the present application, the limiting member includes a limiting pin and a traction rope connected to the limiting pin;

[0022] When the trigger device is in a limited position, the elastic member is in a compressed state and the limit pin is simultaneously inserted into the plug-in through hole and the slot;

[0023] When the trigger device is in the trigger state, the limiting pin moves out of the slot and the plug-in through hole and the elastic member is in the released state.

[0024] In a possible implementation of the present application, the auxiliary braking device also includes a connecting structure, which is arranged at the end of the brake rod away from the main driver's seat and is detachably connected to the brake pedal, and the brake rod is driven and cooperated with the brake pedal through the connecting structure.

[0025] In a possible implementation of the present application, the connecting structure includes a connecting seat and a connecting sleeve. The connecting seat is connected to the end of the brake rod away from the main driver's seat. The connecting sleeve is provided with a mounting slot. The brake pedal is inserted into the mounting slot. The connecting seat and the connecting sleeve are hingedly connected.

[0026] In a possible implementation of the present application, a second mounting hole is provided at the end of the brake rod away from the main driver's seat, the connecting seat includes a first connecting rod and a second connecting rod arranged at an angle to the first connecting rod, the first connecting rod is arranged in the second mounting hole, the connecting sleeve includes a connecting sleeve body and a connecting lug arranged on the connecting sleeve body, the brake pedal is inserted into the connecting sleeve body, and the connecting lug is hingedly connected to the end face of the second connecting rod.

[0027] In a possible implementation of the present application, the connecting sleeve body includes a plate body, a stop rib and a limiting rib, wherein the stop rib includes two side ribs respectively arranged on both sides of the first plate body and a front rib arranged on the side of the first plate body close to the brake rod, the limiting rib is arranged on the side ribs and / or the front ribs and is parallel to the first plate body and spaced apart, and the plate body, the stop ribs and the limiting ribs form an installation slot for the connecting sleeve.

[0028] In a possible implementation of the present application, a third mounting hole is further provided on the limiting rib, and the connecting sleeve further includes a fastener, which is passed through the third mounting hole and abuts against the brake pedal.

[0029] In a possible implementation of the present application, the braking structure also includes an abutment plate, which is arranged at one end of the outer sleeve close to the main driver's seat, and the outer sleeve abuts and cooperates with the main driver's seat through the abutment plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a use scenario of the auxiliary braking device provided in an embodiment of the present application;

[0031] Figure 2 A schematic diagram of the three-dimensional structure of the auxiliary braking device provided in an embodiment of the present application;

[0032] Figure 3 A schematic diagram of the structure of the outer sleeve of the auxiliary braking device provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of the structure of a brake lever of an auxiliary brake device provided in an embodiment of the present application;

[0034] Figure 5 A schematic diagram of the structure of a connecting seat of an auxiliary braking device provided in an embodiment of the present application;

[0035] Figure 6 A schematic structural diagram of a connecting sleeve of an auxiliary braking device provided in an embodiment of the present application.

[0036] Reference numerals:

[0037] 10. Auxiliary braking device;

[0038] 100, support seat;

[0039] 200, brake structure; 210, outer sleeve; 211, first hole section; 212, second hole section; 213, first step surface; 214, plug-in through hole; 215, guide hole; 220, brake rod; 221, first rod section; 222, second rod section; 223, second step surface; 224, slot; 225, guide rod; 226, first mounting hole; 227, second mounting hole; 230, trigger device; 231, elastic member; 232, limit member; 2321, limit pin; 2322, traction rope; 240, abutment plate;

[0040] 300, connecting structure; 310, connecting seat; 311, first connecting rod; 312, second connecting rod; 320, connecting sleeve; 302, mounting slot; 321, connecting sleeve body; 3211, plate body; 3212, stop rib; 3213, limiting rib; 3214, third mounting hole; 3215, fastener; 322, connecting lug;

[0041] 400. Brake pedal; 500. Driver's seat. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0043] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0044] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0045] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0046] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0047] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0048] Unmanned driving technology can effectively reduce traffic accidents caused by driver errors, and therefore has become one of the current research focuses in the vehicle field.

[0049] At present, there are two main methods for achieving braking during unmanned driving test experiments: one is to control the transmission device to push the brake pedal through the control system to achieve braking. Specifically, the transmission device can be a motor, and the control system drives the motor output shaft to push the brake pedal. For another example, the transmission device can be a cam-connecting rod structure, and the cam rotates to drive the connecting rod to drive the brake pedal to move, thereby achieving braking. Although this method can achieve rapid braking, it has a complex transmission structure, poor reliability, and unstable control system operation, which easily increases the risk of brake failure.

[0050] Another method is for the experimenter sitting in the back seat to manually push the pedal with the help of tools to achieve braking. This method has better reliability, but cannot form a quick response and has a high error rate.

[0051] In view of this, an embodiment of the present application provides an auxiliary braking device for auxiliary braking of a vehicle, which adopts a mechanical structure design. The brake pedal can be driven from an initial position to a braking position by simply triggering the trigger device by an experimenter, thereby achieving both rapid response performance and reliability.

[0052] It should be noted that the embodiment of the present application provides an auxiliary braking device for braking and controlling the vehicle in an unmanned driving experiment of the vehicle. It should be noted that the vehicle in the present application may refer to a large car, a small car, a special-purpose car, etc. For example, according to the vehicle model, the car in the present application may be a sedan model, an off-road model, a multi-purpose vehicle (MPV) model or other models. For a vehicle, wheels, a power source, and a transmission system arranged between the wheels and the power source are generally provided. The transmission system can transmit the power provided by the power source to the wheels, so that the wheels rotate, thereby driving the vehicle to travel.

[0053] It should also be noted that in the embodiments of the present application, the type of the power source of the vehicle is not limited. For example, for a fuel vehicle, the power source may refer to a fuel engine such as a gasoline engine or a diesel engine; for an electric vehicle, the power source may refer to an electric motor; for a hybrid vehicle, the power source may refer to an engine or an electric motor; for a vehicle powered by other means, the power source may refer to a device that generates power.

[0054] The specific structure of the auxiliary braking device is described below in conjunction with the accompanying drawings.

[0055] refer to Figure 1 and Figure 2 As shown, the auxiliary braking device 10 of the embodiment of the present application includes a support seat 100 and a braking structure 200 .

[0056] The support base 100 is disposed between the brake pedal 400 of the vehicle and the main driving seat 500. On the one hand, the support base 100 supports the brake structure 200 at an appropriate height so that the brake structure can smoothly drive the brake pedal 400. On the other hand, the support base 100 can also increase the counterweight of the auxiliary brake device 10 to ensure the stability of the auxiliary brake device 10 in the vehicle.

[0057] The braking structure 200 is connected to the support seat 100, and the support seat 100 supports the braking structure 200 between the brake pedal 400 and the main driver's seat 500. The braking structure 200 includes an outer sleeve 210, a brake rod 220 and a trigger device 230. The outer sleeve 210 is fixedly connected to the support seat 100, and the first end of the outer sleeve 210 abuts against the main driver's seat 500. The brake rod 220 is movably arranged in the outer sleeve 210 along the axial direction of the outer sleeve 210, and the end of the brake rod 220 away from the main driver's seat 500 is driven to cooperate with the brake pedal 400.

[0058] Specifically, the brake lever 220 has a braking position for driving the brake pedal 400 to generate a braking effect and an initial position for releasing the braking effect of the brake pedal 400. When the vehicle is running normally, the brake pedal 400 is in the initial position, and when the brake pedal 400 moves from the initial position to the braking position, the vehicle can achieve a braking effect.

[0059] The trigger device 230 includes a limit state and a trigger state. When the trigger device 230 is in the limit state, the trigger device 230 keeps the brake rod 220 in the initial position. When the trigger device 230 is in the trigger state, the trigger device 230 drives the brake rod 220 to extend, that is, the brake rod 220 moves from the initial position to the braking position. At this time, the total length of the brake rod 220 and the outer sleeve 210 increases, so that the brake rod 220 can push the brake pedal 400, thereby producing a braking effect.

[0060] The auxiliary braking device 10 provided in the embodiment of the present application can be placed between the brake pedal 400 and the main driving seat 500 of the vehicle. The auxiliary braking device 10 includes a support seat 100 and a brake structure 200. The support seat 100 is used to ensure the installation stability of the auxiliary braking device 10 in the vehicle. The brake structure 200 is connected to the brake pedal 400 and is used to drive the brake pedal 400 to move between the initial position and the braking position. Specifically, when the vehicle is required to be driven, the position of the outer sleeve 210 and the brake rod 220 can be adjusted and the trigger device 230 can be placed in a limited state. At this time, the brake pedal 400 is placed in the initial state, and the vehicle can work normally. When the vehicle needs to brake, the experimenter in the vehicle can trigger the trigger device 230 to switch the trigger device 230 from the limited state to the trigger state. At this time, the trigger device 230 can move the brake rod 220 to the braking position, thereby achieving the braking of the vehicle. The auxiliary braking device of the embodiment of the present application adopts a mechanical structure design. The brake pedal can be driven from the initial position to the braking position by simply triggering the trigger device by the experimenter, so that both rapid response performance and reliability can be taken into account.

[0061] In a possible implementation of the present application, Figure 2 As shown, the brake structure 200 also includes an abutment plate 240 , which is disposed at one end of the outer sleeve 210 close to the main driver's seat 500 , and the outer sleeve 210 abuts against the main driver's seat 500 through the abutment plate 240 .

[0062] In the above structure, the brake structure 200 is installed inside the vehicle in a manner that one end abuts against the main driver's seat 500 and the other end cooperates with the brake drive, which helps to ensure the installation stability of the auxiliary brake device 10. In addition, the abutment plate 240 helps to increase the abutment area between the brake structure 200 and the main driver's seat 500, thereby further improving the installation stability of the auxiliary brake device 10.

[0063] In other embodiments, the support base 100 may be fixed to the vehicle floor to ensure the installation stability of the auxiliary braking device 10 .

[0064] In a possible implementation of the present application, continue to refer to Figure 1 and Figure 2 As shown, the trigger device 230 includes an elastic member 231 and a limit member 232. The elastic member 231 is arranged between the outer sleeve 210 and the brake rod 220. The elastic member 231 pushes the brake rod 220 under the action of the elastic restoring force to move the brake rod 220 to the braking position. A plug-in hole 214 is arranged on the wall of the outer sleeve 210, and a slot 224 corresponding to the plug-in hole 214 is arranged on the brake rod 220.

[0065] When the trigger device 230 is in a limited state, the elastic member 231 is in a compressed state and the limiting member 232 is simultaneously passed through the plug-in hole 214 and the slot 224; when the trigger device 230 is in a triggered state, the limiting member 232 moves out of the slot 224 and the plug-in hole 214 and the elastic member 231 is in a released state.

[0066] In the above structure, the trigger device 230 includes an elastic member 231 and a stopper 232. In the experimental preparation stage, the outer sleeve 210 and the brake rod 220 can be squeezed to shorten the overall length of the brake structure 200. At this time, the elastic member 231 is in a compressed state. Then the stopper 232 is inserted into the plug-in through hole 214 and the slot 224 at the same time to lock the overall length of the outer sleeve 210 and the brake rod 220, so that the brake rod 220 remains in the initial position. When the vehicle needs to brake, the stopper 232 is removed from the slot 224 and the plug-in through hole 214. At this time, the brake rod 220 can be pushed out under the elastic restoring force of the elastic member 231, resulting in an increase in the overall length of the brake structure 200, that is, the brake rod 220 moves from the initial position to the braking position, thereby driving the brake pedal 400 to brake.

[0067] The specific structure of the braking device is described below in conjunction with the accompanying drawings.

[0068] In a possible implementation of the present application, Figures 2 to 4 As shown, the outer sleeve 210 has an inner hole, and the brake rod 220 is slidably arranged in the inner hole. The inner hole includes a first hole segment 211 and a second hole segment 212 connected to the first hole segment 211. The aperture of the first hole segment 211 is larger than the aperture of the second hole segment 212. A first step surface 213 is formed between the first hole segment 211 and the second hole segment 212.

[0069] The brake rod 220 includes a first rod segment 221 and a second rod segment 222 connected to the first rod segment 221. The outer diameter of the first rod segment 221 is greater than the outer diameter of the second rod segment 222. A second step surface 223 is formed between the first rod segment 221 and the second rod segment 222. The elastic member 231 is arranged between the first step surface 213 and the second step surface 223.

[0070] In the above structure, the first step surface 213 and the second step surface 223 are arranged to provide a contact plane for the elastic member 231, and the elastic member 231 can be squeezed and released by changing the distance between the first step surface 213 and the second step surface 223. The stopper 232 can lock the relative positions of the outer sleeve 210 and the brake rod 220, that is, it can lock the distance between the first step surface 213 and the second step surface 223, so that the elastic member 231 can accumulate elastic potential energy. When the stopper is moved out, the elastic potential energy is released, driving the brake rod 220 to move to the braking position, thereby generating a braking effect.

[0071] It should also be noted that the plug-in through hole 214 can be directly connected to the first hole segment 211 , and the slot 224 is provided on the first rod segment 221 so that the plug-in through hole 214 and the slot 224 correspond to each other, thereby facilitating the insertion of the limiter 232 .

[0072] Furthermore, in a possible implementation of the present application, Figure 2 As shown, the limiting member 232 includes a limiting pin 2321 and a traction rope 2322 connected to the limiting pin 2321. When the trigger device 230 is in a limiting state, the elastic member 231 is in a compressed state and the limiting pin 2321 is simultaneously passed through the plug-in hole 214 and the slot 224; when the trigger device 230 is in a triggering state, the limiting pin 2321 moves out of the slot 224 and the plug-in hole 214 and the elastic member 231 is in a released state.

[0073] In the above structure, the limit pin 2321 has a simple structure and is easy to process. The plug-in end of the limit pin 2321 can be an arc surface or a conical surface to increase the smoothness of plug-in. The provision of the traction rope 2322 can facilitate the operator to pull the limit pin 2321 out of the plug-in through hole 214 and the slot 224 by pulling. In addition, the length of the traction rope 2322 can be changed according to actual needs, so that the position of the experimenter is more flexible.

[0074] It should be noted that the auxiliary braking device of the embodiment of the present application adopts a mechanical structure to realize the braking control of the vehicle, and its structural stability is high. In addition, the auxiliary braking device can realize vehicle braking only by the experimenter pulling the limiter, which is easy to operate and responds quickly, while taking into account the functions of fast response and high stability.

[0075] Furthermore, if Figures 1 to 4 As shown, in a possible implementation of the present application, the auxiliary braking device 10 also includes a guide limiting structure, which enables the brake rod 220 to move in the outer sleeve 210 along the axial direction of the outer sleeve 210, and prevents the brake rod from rotating in the outer sleeve, thereby preventing the limit pin from finding the slot on the brake rod.

[0076] The guide limiting structure includes a guide hole 215 provided on the outer sleeve 210 and a guide rod 225 provided on the brake rod 220;

[0077] Among them, the guide hole 215 extends along the axial direction of the outer sleeve 210 and is directly connected to the first hole segment 211. A first mounting hole 226 is provided on the outer wall of the first rod segment 221 of the guide rod 225. The guide rod 225 is inserted into the guide hole 215 and connected to the first mounting hole 226. The guide hole 215 limits the guide rod 225 in the circumferential direction of the brake rod 220.

[0078] Furthermore, in a possible implementation of the present application, Figure 1 , Figure 2 and Figure 6 As shown, the auxiliary braking device 10 also includes a connecting structure 300, which is arranged at one end of the brake rod 220 away from the main driver's seat 500 and is detachably connected to the brake pedal 400. The brake rod 220 is driven and cooperated with the brake pedal 400 through the connecting structure 300, thereby realizing a stable connection between the brake rod 220 and the brake pedal 400, thereby ensuring the driving stability of the brake rod 220 on the brake pedal 400.

[0079] Exemplarily, the connecting structure 300 may include a connecting seat 310 and a connecting sleeve 320, the connecting seat 310 is connected to the end of the brake rod 220 away from the main driver's seat 500, the connecting sleeve 320 is provided with a mounting slot 302, the brake pedal 400 is inserted into the mounting slot 302, and the connecting seat 310 and the connecting sleeve 320 are hingedly connected.

[0080] In the above structure, the hinged connection between the connection seat 310 and the connection sleeve 320 can improve the smoothness of the brake lever 220 when driving the brake pedal 400, so as to reduce the probability of getting stuck when driving the brake pedal 400. The connection sleeve 320 can be connected to the brake pedal 400 in a plug-in manner, so as to facilitate the assembly and disassembly of the connection sleeve 320 and the brake pedal 400.

[0081] Furthermore, if Figure 6 As shown, a second mounting hole 227 is provided at one end of the brake rod 220 away from the main driver's seat 500, the connecting seat 310 includes a first connecting rod 311 and a second connecting rod 312 arranged at an angle to the first connecting rod 311, the first connecting rod 311 is arranged in the second mounting hole 227, the connecting sleeve 320 includes a connecting sleeve body 321 and a connecting lug 322 arranged on the connecting sleeve body 321, the brake pedal 400 is inserted into the connecting sleeve body 321, and the connecting lug 322 is hingedly connected to the end face of the second connecting rod 312.

[0082] In the above structure, the first connecting rod 311 and the second connecting rod 312 are set at an angle. The first connecting rod 311 is connected to the brake rod 220 through the second mounting hole 227, and the second connecting rod 312 is hinged to the connecting sleeve 320 through a hinge, thereby realizing flexible driving of the brake rod 220 on the brake pedal 400.

[0083] Exemplarily, the first connecting rod 311 and the second connecting rod 312 can be arranged vertically. A hinge hole can be arranged on the end surface of the second connecting rod 312, and two connecting lugs 322 can be arranged on the connecting sleeve body 321, and each connecting lug 322 can be hinged to a hinge hole of the second connecting rod 312 through a hinge.

[0084] Exemplarily, the first connecting rod 311 and the second mounting hole 227 may be connected by interference fit, or the first connecting rod 311 may be provided with external threads, the second mounting hole 227 is a threaded hole, and the first connecting rod 311 and the brake rod 220 are connected by threads.

[0085] Furthermore, if Figure 6 As shown, the connecting sleeve body 321 includes a plate body 3211, a stop rib 3212 and a limiting rib 3213, wherein the stop rib 3212 includes two side ribs respectively arranged on both sides of the first plate body 3211 and a front rib arranged on the first plate body 3211 close to the brake rod 220, and the limiting rib 3213 is arranged on the side ribs and / or the front ribs and is parallel to the first plate body 3211 and spaced apart. The plate body 3211, the stop rib 3212 and the limiting rib 3213 form the installation slot 302 of the connecting sleeve 320. This arrangement makes it easy to insert the brake pedal 400 into the installation slot 302, thereby helping to ensure the assembly effect of the brake pedal 400 and the connecting sleeve 320.

[0086] In order to ensure the insertion stability of the brake pedal 400 in the mounting slot 302, in a possible implementation of the present application, a third mounting hole 3214 is also opened on the limiting rib 3213, and the connecting sleeve 320 also includes a fastener 3215, which is passed through the third mounting hole 3214 and abuts against the brake pedal 400, thereby ensuring the connection stability of the brake pedal 400 in the mounting slot 302.

[0087] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An auxiliary braking device for auxiliary braking of a vehicle, characterized in that: include: A support seat, arranged between the brake pedal and the main driving seat of the vehicle; A brake structure connected to the support seat, the support seat supports the brake structure between the brake pedal and the main driving seat, the brake structure comprises an outer sleeve, a brake rod and a trigger device, the outer sleeve is fixedly connected to the support seat, the brake rod is movably arranged in the outer sleeve along the axial direction of the outer sleeve, and one end of the brake rod away from the main driving seat is drivingly matched with the brake pedal; Wherein, the brake lever has a braking position for driving the brake pedal to produce a braking effect and an initial position for releasing the braking effect of the brake pedal; The trigger device includes a limit state and a trigger state. When the trigger device is in the limit state, the trigger device keeps the brake rod at the initial position; when the trigger device is in the trigger state, the trigger device drives the brake rod to move to the braking position to drive the brake pedal to brake.

2. The auxiliary braking device according to claim 1, characterized in that: The trigger device comprises an elastic member and a limiting member, wherein the elastic member is arranged between the outer sleeve and the brake rod, and the elastic member pushes the brake rod under the action of elastic restoring force to make the brake rod move to the braking position, and a plug-in through hole is arranged on the wall of the outer sleeve, and a slot corresponding to the plug-in through hole is arranged on the brake rod; When the trigger device is in the limited state, the elastic member is in a compressed state and the limited member is simultaneously inserted into the plug-in through hole and the slot; When the trigger device is in the trigger state, the limiting member moves out of the slot and the plug-in through hole and the elastic member is in a released state.

3. The auxiliary braking device according to claim 2, characterized in that: The outer sleeve has an inner hole, the brake rod is slidably arranged in the inner hole, the inner hole includes a first hole segment and a second hole segment connected to the first hole segment, the hole diameter of the first hole segment is larger than the hole diameter of the second hole segment, and a first step surface is formed between the first hole segment and the second hole segment; The brake rod comprises a first rod segment and a second rod segment connected to the first rod segment, the outer diameter of the first rod segment is greater than the outer diameter of the second rod segment, and a second step surface is formed between the first rod segment and the second rod segment; The elastic member is disposed between the first step surface and the second step surface.

4. The auxiliary braking device according to claim 3, characterized in that: The auxiliary braking device further comprises a guide limiting structure, wherein the guide limiting structure comprises a guide hole arranged on the outer sleeve and a guide rod arranged on the brake rod; Among them, the guide hole extends along the axial direction of the outer sleeve and is directly connected with the first hole segment, a first mounting hole is provided on the outer wall of the first rod segment of the guide rod, the guide rod is passed through the guide hole and connected to the first mounting hole, and the guide hole limits the guide rod in the circumferential direction of the brake rod.

5. The auxiliary braking device according to claim 2, characterized in that: The limiting member includes a limiting pin and a traction rope connected to the limiting pin; When the trigger device is in the limited state, the elastic member is in a compressed state and the limit pin is simultaneously inserted into the plug-in through hole and the slot; When the trigger device is in the trigger state, the limiting pin moves out of the slot and the plug-in through hole and the elastic member is in a released state.

6. The auxiliary brake device according to any one of claims 1 to 4, characterized in that: The auxiliary braking device also includes a connecting structure, which is arranged at an end of the brake rod away from the main driving seat and is detachably connected to the brake pedal. The brake rod is driven and cooperated with the brake pedal through the connecting structure.

7. The auxiliary braking device according to claim 6, characterized in that: The connecting structure includes a connecting seat and a connecting sleeve. The connecting seat is connected to the end of the brake rod away from the main driving seat. The connecting sleeve is provided with a mounting slot. The brake pedal is inserted into the mounting slot. The connecting seat and the connecting sleeve are hingedly connected.

8. The auxiliary braking device according to claim 7, characterized in that: A second mounting hole is provided at the end of the brake rod away from the main driver's seat, the connecting seat includes a first connecting rod and a second connecting rod arranged at an angle to the first connecting rod, the first connecting rod is arranged in the second mounting hole, the connecting sleeve includes a connecting sleeve body and a connecting lug arranged on the connecting sleeve body, the brake pedal is inserted into the connecting sleeve body, and the connecting lug is hingedly connected to the end face of the second connecting rod.

9. The auxiliary braking device according to claim 8, characterized in that: The connecting sleeve body includes a plate body, a stop rib and a limiting rib, wherein the stop rib includes two side ribs respectively arranged on both sides of the first plate body and a front rib arranged on the first plate body close to the brake rod side, the limiting rib is arranged on the side ribs and / or the front ribs and is parallel to the first plate body and spaced apart, and the plate body, the stop rib and the limiting rib form an installation slot for the connecting sleeve.

10. The auxiliary braking device according to claim 9, characterized in that: The limiting rib is further provided with a third mounting hole, and the connecting sleeve further comprises a fastener, which is passed through the third mounting hole and abuts against the brake pedal.

11. The auxiliary brake device according to any one of claims 1 to 4, characterized in that: The braking structure also includes an abutment plate, which is arranged at one end of the outer sleeve close to the main driver's seat, and the outer sleeve abuts and cooperates with the main driver's seat through the abutment plate.

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