CN213988703U

CN213988703U - Automatic reset mechanism of automobile trigger type steering switch

Info

Publication number: CN213988703U
Application number: CN202022541757.5U
Authority: CN
Inventors: 杨国斌; 王明凤; 刘伟; 何雪梅; 陈捷飞
Original assignee: SHANGHAI YINGZHI AUTOMOBILE ELECTRONICS CO Ltd
Current assignee: SHANGHAI YINGZHI AUTOMOBILE ELECTRONICS CO Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-08-17
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses an automatic reset mechanism of an automobile trigger type steering switch, which comprises a trigger component, an upper shell component, a lower shell component and an automatic reset mechanism arranged in the upper shell component and the lower shell component; the automatic reset mechanism comprises a fixed seat, a return pin, a sliding block, a driving spring, a stop block and a double overload protection spring; the fixed seat is arranged in the upper shell component, the lower shell component is buckled with the upper shell component, and the trigger component is buckled between the upper shell component and the lower shell component; the stop block and the double overload protection springs are arranged on the trigger assembly, and the tail end of the long shifting plate of the return pin is positioned between the forks of the stop block. The reset mechanism overcomes the defects of the traditional automobile steering switch, prevents foreign matters from entering the sliding groove, avoids damage to parts when the trigger assembly is overloaded through a double-spring structure, and ensures normal and reliable work of the steering switch and safe driving of a vehicle.

Description

Automatic reset mechanism of automobile trigger type steering switch

Technical Field

The utility model relates to an automatic re-setting mechanism of car trigger formula steering switch.

Background

The automobile steering switch is a switch for turning on or off a vehicle steering signal lamp, before a vehicle turns, a driver operates a steering switch trigger to turn on the steering switch, and the vehicle steering signal lamp works to send a steering signal. After the steering is finished, the driver turns the steering wheel, the automatic reset mechanism is driven, the steering switch is automatically turned off, and the steering signal lamp stops working. The mechanism is mainly used for improving the operation comfort of a driver.

As shown in fig. 1 and 2, a conventional direction switch generally includes a trigger assembly 1, an upper housing assembly 2, a lower housing assembly 3, and an automatic reset mechanism 4 disposed between the upper housing assembly 2 and the lower housing assembly 3; the automatic reset mechanism comprises a return pin 42, a slide block 43 and a drive spring 44. Wherein the movable electrical contact element is disposed on the trigger assembly 1 and the stationary electrical contact element is disposed on the lower housing assembly 3.

In traditional steering switch's automatic re-setting mechanism 4, the spout setting of return pin 42 is on last casing subassembly 2 or casing subassembly 3 down, and the foreign matter gets into automatic re-setting mechanism 4 from the spout easily inside, influences the normal operating of trigger subassembly, and then influences vehicle turn signal lamp's normal switching, and under the trigger subassembly overload condition, easily leads to the part to damage, therefore vehicle driving has certain potential safety hazard.

Disclosure of Invention

The utility model aims to solve the technical problem that an automatic re-setting mechanism of car trigger formula switch is provided, traditional car switch's defect is overcome to this canceling release mechanical system, avoids the foreign matter to get into the spout, and the part damage when avoiding trigger subassembly to transship through the double spring structure, ensures the normal reliable work of switch and the safe driving of vehicle.

In order to solve the technical problem, the automatic reset mechanism of the automobile trigger type steering switch comprises a trigger assembly, an upper shell assembly, a lower shell assembly and an automatic reset mechanism arranged in the upper shell assembly and the lower shell assembly; the automatic reset mechanism comprises a fixed seat, a return pin, a sliding block, a driving spring, a stop block and a double overload protection spring;

the middle part of the fixing seat is a strip-shaped cavity, two side walls of the strip-shaped cavity are provided with sliding grooves, the rear wall of the strip-shaped cavity is provided with a first positioning column, the return pin comprises a strip-shaped shifting plate, a sliding seat and a rotating shaft, the sliding seat is arranged on the surface of the middle rear part of the strip-shaped shifting plate, two sides of the sliding seat are provided with clamping grooves, the center of the sliding seat is provided with a shaft hole for penetrating through the strip-shaped shifting plate, the rotating shaft is arranged in the shaft hole, the return pin is arranged in the strip-shaped cavity of the fixing seat, the clamping grooves on two sides of the sliding seat are arranged in the sliding grooves on two side walls of the strip-shaped cavity, so that the return pin can move back and forth along the strip-shaped cavity of the fixing seat, the front end of the strip-shaped shifting, the end face of the sliding block is provided with a first mounting hole, the tail end of the driving spring is sleeved into the first positioning column, the front end of the driving spring is positioned in the first mounting hole, the fixed seat is mounted in the upper shell assembly, and the front end of the long shifting plate extends out of the upper shell assembly;

the lower shell assembly is buckled with the upper shell assembly, the trigger assembly comprises a handle and a corner square installation shell arranged at the tail end of the handle, the corner square installation shell is buckled between the upper shell assembly and the lower shell assembly, the stop block is of a fork-shaped structure, the end face of the stop block is connected with the corner square installation shell through a buckle, second installation holes are formed in the end face of the stop block at intervals, second positioning columns are arranged on the inner wall of the corner square installation shell at intervals, the two ends of the double overload protection springs are respectively sleeved in the second positioning columns and extend into the second installation holes, and the tail end of the long shifting plate is located between the fork shapes of the stop blocks.

Furthermore, the two sides of the fixing seat are respectively provided with a clamping seat at intervals, and the fixing seat is clamped in the upper shell assembly through the clamping seats.

Furthermore, the sliding matching surfaces of the chutes on the two side walls of the elongated cavity are smooth mirror surfaces.

Furthermore, the second positioning column is in interference fit with the double overload protection springs, and the cross section of the second mounting hole is oval.

Furthermore, the mechanism also comprises a movable electric contact element and a fixed electric contact element of the steering switch, wherein the movable electric contact element and the fixed electric contact element are respectively arranged on the trigger assembly and the lower shell assembly, and the movable electric contact element is in contact conduction with the fixed electric contact element in the pulling process of the trigger assembly.

The automatic reset mechanism of the automobile trigger type steering switch adopts the technical scheme, namely the automatic reset mechanism comprises a trigger component, an upper shell component, a lower shell component and an automatic reset mechanism arranged in the upper shell component and the lower shell component; the automatic reset mechanism comprises a fixed seat, a return pin, a sliding block, a driving spring, a stop block and a double overload protection spring; the fixed seat is arranged in the upper shell component, the lower shell component is buckled with the upper shell component, and the trigger component is buckled between the upper shell component and the lower shell component; the stop block and the double overload protection springs are arranged on the trigger assembly, and the tail end of the long shifting plate of the return pin is positioned between the forks of the stop block. The reset mechanism overcomes the defects of the traditional automobile steering switch, prevents foreign matters from entering the sliding groove, avoids damage to parts when the trigger assembly is overloaded through a double-spring structure, and ensures normal and reliable work of the steering switch and safe driving of a vehicle.

Drawings

The invention will be described in further detail with reference to the following drawings and embodiments:

FIG. 1 is a schematic structural diagram of a conventional steering switch for an automobile;

FIG. 2 is an enlarged schematic view of the automatic reset mechanism of FIG. 1;

FIG. 3 is a schematic view of the automatic reset mechanism of the automobile trigger type steering switch of the present invention;

FIG. 4 is a schematic view of a fixing seat of the mechanism;

FIG. 5 is a schematic view of the structure of the return pin of the present mechanism;

FIG. 6 is a schematic view of the assembly of the return pin and the fixing seat in the mechanism;

FIG. 7 is a schematic view of the assembly of the sliding block and the fixing seat in the mechanism;

FIG. 8 is a schematic view of the assembly of the driving spring and the fixing seat in the present mechanism;

FIG. 9 is a schematic view showing the rotation of the return pin in the present mechanism;

FIG. 10 is a schematic view of the assembly of the trigger assembly with the stop block and the dual overload protection spring in the present mechanism;

FIG. 11 is a block diagram of the stop bit of the present mechanism;

FIG. 12 is a schematic diagram of a double overload protection spring arrangement in the present mechanism;

FIG. 13 is a schematic view of the assembly of the mechanism;

FIG. 14 is a schematic view of the working principle of the mechanism;

fig. 15 is a schematic diagram of the working principle of the double overload protection spring in the mechanism.

Detailed Description

Fig. 3 to 8 show an embodiment of the present invention, in which the automatic reset mechanism of the automobile trigger type steering switch includes a trigger assembly 1, an upper housing assembly 2, a lower housing assembly 3, and an automatic reset mechanism disposed between the upper housing assembly 2 and the lower housing assembly 3; the automatic reset mechanism comprises a fixed seat 41, a return pin 42, a sliding block 43, a driving spring 44, a stop block 45 and a double overload protection spring 46;

the middle of the fixing base 41 is an elongated cavity 411, two side walls of the elongated cavity 411 are provided with a sliding groove 412, the rear wall of the elongated cavity is provided with a first positioning column 413, the return pin 42 comprises an elongated shifting plate 421, a sliding seat 422 and a rotating shaft 423, the sliding seat 422 is arranged on the rear surface of the elongated shifting plate 421, two sides of the sliding seat 422 are provided with a clamping groove 424, the center of the sliding seat 422 is provided with a shaft hole penetrating through the elongated shifting plate 421, the rotating shaft 423 is arranged in the shaft hole, the return pin 42 is arranged in the elongated cavity 411 of the fixing base 41, the clamping grooves 424 on two sides of the sliding seat 422 are arranged in the sliding grooves 412 on two side walls of the elongated cavity 411, so that the return pin 42 moves back and forth along the elongated cavity 411 of the fixing base 41, the front end of the elongated shifting plate 421 extends out of the fixing base 41, the sliding block 43 is arranged in the elongated cavity 411 of the fixing base 41 and moves along the elongated cavity 411 through the sliding groove 412, the sliding block 43 is located on the surface of the long pulling plate 421 and abuts against the sliding seat 422, a first installation hole 431 is formed in the end surface of the sliding block 43, the tail end of the driving spring 44 is sleeved in the first positioning column 413, the front end of the driving spring is located in the first installation hole 431, the fixed seat 41 is installed in the upper shell component 2, and the front end of the long pulling plate 421 extends out of the upper shell component 2;

as shown in fig. 10 and 13, the lower housing component 3 is fastened to the upper housing component 2, the trigger component 1 includes a handle 11 and a square mounting housing 12 disposed at the end of the handle 11, the square mounting housing 12 is fastened between the upper housing component 2 and the lower housing component 3, the stop block 45 is of a fork structure and has an end surface connected to the square mounting housing 12 through a buckle 451, second mounting holes 452 are disposed at intervals on the end surface of the stop block 45, second positioning posts 122 are disposed at intervals on the inner wall of the square mounting housing 12, two ends of the dual overload protection spring 46 are respectively sleeved into the second positioning posts 122 and extend into the second mounting holes 452, and the tail end of the long shifting plate 421 is located between the forks of the stop block 45.

Preferably, clamping seats 414 are respectively disposed at two sides of the fixing seat 41 at intervals, and the fixing seat 41 is clamped in the upper housing component 2 through the clamping seats 414.

Preferably, the sliding mating surfaces of the two side walls of the elongated cavity 411 and the sliding grooves 412 are smooth mirror surfaces.

Preferably, second positioning column 122 is in interference fit with double overload protection springs 46, and second mounting hole 452 has an oval cross section.

Preferably, the mechanism further comprises a movable electrical contact element 5 and a fixed electrical contact element 6 of the steering switch, the movable electrical contact element 5 and the fixed electrical contact element 6 are respectively arranged on the trigger assembly 1 and the lower housing assembly 3, and the movable electrical contact element 5 is in contact conduction with the fixed electrical contact element 6 in the process of pulling the trigger assembly 1.

In the mechanism, after the fixing seat 41 is assembled, the driving spring 44 is in a pre-pressed state, and in order to prevent the driving spring 44 from falling off, as shown in fig. 8, one end of the driving spring 44 is fixed on the positioning column 413, and the other end is fixed in the mounting hole 431 of the sliding block 43.

The return pin 42 slides along the slide groove 412 under the urging of the drive spring 44. As shown in fig. 9, when the return pin 42 slides to the limit position of the slide groove 412, the return pin 43 can rotate around the rotating shaft 423.

As shown in fig. 12, the double overload protection springs 46 are symmetrically arranged on both sides of the return pin 42 in the sliding direction of the return pin, and the spring axis and the return pin center line are parallel. One end of the dual overload protection spring 46 is fixed on the positioning post 122 of the trigger assembly 1, and the other end is fixed in the mounting hole 452 of the stop block 45. Positioning post 122 and double overload protection spring 46 are in interference fit to prevent spring 46 from falling off. The mounting holes 452 are oval, so that the hole edges of the mounting holes 452 are prevented from interfering with the spring 46 to generate abnormal sound in the overload protection process.

As shown in fig. 13, the assembly of the trigger assembly 1 to the upper housing assembly 2 and the final assembly of the lower housing assembly 3 constitutes an automatic return mechanism of the steering switch.

When the vehicle is turned, the steering switch trigger assembly 1 is operated to the steering position, the steering switch is turned on, and the return pin 42 moves forward and extends along the slide groove 412 of the fixed seat 41 away from the parking position under the action of the driving spring 44 to reach the limit position of the slide groove 412. After the vehicle turns, as shown in fig. 14, the steering wheel is turned, the head of the long shifting plate 421 of the return pin 42 is shifted by the clock spring shifting block 100, the return pin 42 rotates around the shaft 423, the tail of the long shifting plate 421 of the return pin 42 abuts against the stop block 45, the trigger lever assembly 1 returns to the middle position, the steering switch automatically resets, and the function of automatically turning off the turn signal lamp is achieved.

As shown in fig. 15, in the resetting process, if an excessive load opposite to the resetting direction is applied to the switch trigger assembly 1, the steering wheel is turned, the return pin 42 cannot trigger the trigger assembly 1 to return to the middle position, and in order to avoid the breakage of the return pin 42 and the stop block 45, the overload protection is realized by adopting the double overload protection springs 46 and the stop block 45. When a load 200 opposite to the reset direction is applied to the combined switch trigger assembly 1, the clock spring shifting block 100 is used for shifting the head of the return pin 42, the tail of the return pin 42 is propped against the stop block 45, at the moment, the overload protection spring 46 on the stress side of the stop block 45 is compressed, the stop block 45 retreats while rotating, so that the return pin 42 retreats, the elongation of the return pin 42 is reduced, the rotating angle of the return pin 42 is increased at the same time, and the clock spring shifting block 100 slides over the head of the return pin 42, so that the combined switch trigger assembly plays a role in protection, and avoids the parts such as the stop block 45, the return pin 42 and the like from being broken and damaged.

The spout setting of return round pin in traditional combination switch is on last casing or casing down, and the foreign matter is easy inside from spout access switch, influences the switch performance, provides a fixing base with the spout in this mechanism, installs return round pin, slider, drive spring on the fixing base, then fixes inside the casing, avoids unusual inside from spout access switch. The double overload protection springs are simple and compact in structure and high in reliability, can achieve the protection effect in a small space, avoid breakage and damage of the return pin and the stop block when the trigger is overloaded, and ensure normal and reliable operation of the steering switch and safe driving of a vehicle.

Claims

1. An automatic reset mechanism of an automobile trigger type steering switch comprises a trigger assembly, an upper shell assembly, a lower shell assembly and an automatic reset mechanism arranged in the upper shell assembly and the lower shell assembly; the method is characterized in that: the automatic reset mechanism comprises a fixed seat, a return pin, a sliding block, a driving spring, a stop block and a double overload protection spring;

the middle part of the fixing seat is a strip-shaped cavity, two side walls of the strip-shaped cavity are provided with sliding grooves, the rear wall of the strip-shaped cavity is provided with a first positioning column, the return pin comprises a strip-shaped shifting plate, a sliding seat and a rotating shaft, the sliding seat is arranged on the surface of the middle rear part of the strip-shaped shifting plate, two sides of the sliding seat are provided with clamping grooves, the center of the sliding seat is provided with a shaft hole for penetrating through the strip-shaped shifting plate, the rotating shaft is arranged in the shaft hole, the return pin is arranged in the strip-shaped cavity of the fixing seat, the clamping grooves on two sides of the sliding seat are arranged in the sliding grooves on two side walls of the strip-shaped cavity, so that the return pin can move back and forth along the strip-shaped cavity of the fixing seat, the front end of the strip-shaped shifting plate extends out of the fixing seat, the slide block is positioned in the strip-shaped cavity of the fixing seat and moves along the strip-shaped cavity through the sliding grooves, the slide block is positioned on the surface of the strip-shaped shifting plate and is abutted against the sliding seat, the end face of the sliding block is provided with a first mounting hole, the tail end of the driving spring is sleeved into the first positioning column, the front end of the driving spring is positioned in the first mounting hole, the fixed seat is mounted in the upper shell assembly, and the front end of the long shifting plate extends out of the upper shell assembly;

2. The automatic reset mechanism of a trigger type steering switch for an automobile according to claim 1, wherein: the two sides of the fixing seat are respectively provided with a clamping seat at intervals, and the fixing seat is clamped in the upper shell assembly through the clamping seats.

3. The automatic reset mechanism of a trigger type steering switch for an automobile according to claim 1 or 2, wherein: the sliding matching surfaces of the sliding grooves on the two side walls of the elongated cavity are smooth mirror surfaces.

4. The automatic reset mechanism of a trigger type steering switch for an automobile according to claim 3, wherein: the second positioning column is in interference fit with the double overload protection springs, and the cross section of the second mounting hole is oval.

5. The automatic reset mechanism of a trigger type steering switch for an automobile according to claim 3, wherein: the mechanism further comprises a movable electric contact element and a fixed electric contact element of the steering switch, wherein the movable electric contact element and the fixed electric contact element are respectively arranged on the trigger assembly and the lower shell assembly, and the movable electric contact element is in contact conduction with the fixed electric contact element in the pulling process of the trigger assembly.