Cover door sensing device of automobile with side sliding door

Abstract

A cover door sensing device of a side sliding door automobile comprises a support and a spring bolt, a pin shaft is fixedly arranged on the front face of the support, the fixed end of a rotating arm is hinged to the pin shaft, a torsion spring is arranged at the fixed end of the rotating arm and sleeved on the pin shaft, one end of the torsion spring is fixedly connected with the rotating arm, and the other end of the torsion spring is fixedly connected with the support. The free end of the rotating arm is provided with a strip-shaped hole, the strip-shaped hole is used for installing an inhaul cable connector at one end of an inhaul cable steel wire rope, an inhaul cable connector displacement freedom degree is reserved in the strip-shaped hole, the other end of the inhaul cable steel wire rope is used for being connected with an interlocking mechanism, the back face of the support is in sliding fit with a spring bolt, and the tail end of the spring bolt is provided with a transversely-extending push arm. The push arm penetrates through a guide groove formed in the support to make contact with the free end of the rotary arm, the lock tongue pushes the rotary arm to rotate so that the interlocking mechanism can be unlocked, or the torsion spring drives the rotary arm to push the lock tongue to extend outwards, and the inhaul cable pulls the interlocking mechanism to conduct locking.

Description

Technical Field

[0001] The invention relates to the field of side sliding door vehicles, and in particular to a cover door sensing device for side sliding door vehicles. Background Art

[0002] The doors of some existing cars are side sliding doors. When the side sliding door is slid, the side sliding door slides toward the rear wheel and covers the outer facade of the area above the rear wheel. A fuel door or a charging door is provided in the area above the rear wheel. When the fuel door or the charging door is opened to refuel or charge the car, in order to prevent the side sliding door from colliding with the fuel door or the charging door, thereby causing damage to the fuel door or the charging door, or even damage to the fuel gun or the charging gun, a door sensing device is provided in the prior art. When the fuel door or the charging door is opened, the lock tongue of the door sensing device is pushed out, causing its rotating arm to rotate, pulling the cable, so that the interlocking mechanism connected to the other end of the cable locks and limits the slider of the side sliding door, so that the side sliding door cannot slide backward, thereby protecting the fuel door or the charging door.

[0003] The existing cover door sensing device, as described in the patent "Oil Tank Cover Device" with the announcement number JP4336604B2, has two rotating arms and two torsion springs arranged on the same rotating shaft, and are respectively located on both sides of the bracket. Both rotating arms are made of metal. The free end of one rotating arm is fixed with a cable, and the cable drives the interlocking mechanism to limit the slider of the side sliding door. The free end of the other rotating arm contacts the boss arranged at the tail of the lock tongue, and the torsion spring is inserted into the lock tongue. The existing cover door sensing device has the following two problems: 1. The lock tongue of the cover door sensing device will swing during the movement, and the stability of the lock tongue movement is poor. In addition, the distance between the lock tongue and the torsion spring is relatively close. During the movement of the lock tongue, the lock tongue and the torsion spring will rub against each other, reducing the service life. 2. When the door sensing device is in the closed state, that is, when the fuel door or the charging door is closed, the distance between the rotating arm of the door sensing device and the interlocking mechanism at the other end of the cable becomes shorter, causing the cable wire rope to become relatively longer. The cable is fixed in the mounting hole set on the rotating arm, and the relatively longer part of the wire rope cannot be accommodated, resulting in a folding phenomenon, which can easily cause the wire rope to break. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention proposes a cover door sensing device for a side sliding door car, which can prevent the lock tongue from swinging during movement, improve the stability of the lock tongue, prevent the lock tongue and the torsion spring from rubbing against each other, extend the service life of the cover door sensing device, and also solve the problem of wire rope folding and breakage.

[0005] The technical solution of the present invention is: a cover door sensing device for a side sliding door car, comprising a bracket and a lock tongue, a pin shaft is fixedly arranged on the front side of the bracket, a fixed end of a rotating arm is hinged with the pin shaft, a torsion spring is arranged at the fixed end of the rotating arm, the torsion spring is sleeved on the pin shaft, one end of the torsion spring is fixedly connected to the rotating arm, and the other end is fixedly connected to the bracket, a strip hole is arranged at the free end of the rotating arm, the strip hole is used for installing a cable joint at one end of a cable wire rope, the strip hole leaves the cable joint displacement freedom, the other end of the cable wire rope is used for connecting an interlocking mechanism, the back side of the bracket slides to cooperate with the lock tongue, a push arm extending laterally is arranged at the tail end of the lock tongue, the push arm passes through the guide groove arranged on the bracket and contacts with the free end of the rotating arm, the interlocking mechanism is unlocked by pushing the rotating arm to rotate through the lock tongue, or the torsion spring drives the rotating arm to push the lock tongue outward, and the interlocking mechanism is locked by pulling the cable.

[0006] Preferably, a micro switch is provided on the bracket, and a boss is radially extended from the fixed end of the rotating arm, and the boss is used for the rotating arm to rotate to control the opening and closing of the micro switch, thereby sending a signal for closing or opening the cover door.

[0007] Preferably, a protective sheet is provided on the micro switch to protect the micro switch.

[0008] Preferably, the push arm at the tail of the lock tongue is L-shaped, and a slide groove is provided on one side of the rotating arm. The push arm is slidably matched with the slide groove so that the push arm can slide along the slide groove.

[0009] Preferably, a sleeve mounting bracket is provided on the side of the bracket, the sleeve mounting bracket is provided with an open slot, a lock tongue sleeve is connected to the sleeve mounting bracket through the open slot, and the lock tongue portion is installed in the lock tongue sleeve.

[0010] Preferably, the opening of the opening slot is smaller than the diameter of the locking tongue sleeve.

[0011] Preferably, a connecting portion is provided at the extended end of the locking tongue sleeve, and the connecting portion is used for fixed connection with the vehicle body, and a rubber gasket is sleeved on the locking tongue sleeve for shock absorption.

[0012] Preferably, a buckle mounting hole is provided on the bracket, and a buckle is used to clamp and fix the bracket through the buckle mounting hole.

[0013] Preferably, a cable fixing bracket is provided on one side of the bracket, and the cable is fixed on the cable fixing bracket.

[0014] Preferably, outward flange protrusions are provided at both ends of the guide groove.

[0015] The advantages of the present invention are: 1. The present invention provides a guide groove on the bracket so that the lock tongue can move along the guide groove, thereby preventing the lock tongue from swinging during movement, improving the stability of the lock tongue movement, and no torsion spring needs to be inserted separately into the lock tongue, thereby preventing the lock tongue from interfering with the torsion spring during movement, thereby extending the service life of the device.

[0016] 2. The present invention provides a strip hole at the free end of the rotating arm. When the cover door is closed, the cable connector of the wire rope moves in the strip hole, and the relatively longer part of the cable wire rope is pulled into the strip hole to avoid the cable wire rope from being broken.

[0017] 3. The present invention has only one rotating arm, which is made of plastic and has a simple structure, thus achieving lightweight products and reducing product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An exploded view of the present invention; Figure 2 It is a schematic diagram of the structure of the cover door of the present invention when it is opened; Figure 3 It is a schematic diagram of the structure when the cover door of the present invention is closed.

[0019] Explanation of the reference numerals: 1. bracket; 11. guide groove; 12. sleeve mounting bracket; 121. open slot; 13. cable fixing bracket; 14. buckle mounting hole; 2. rotating arm; 21. strip hole; 22. boss; 23. slide groove; 3. pin shaft; 4. locking tongue; 41. push arm; 5. cable; 51. cable joint; 6. locking tongue sleeve; 7. micro switch; 71. protective sheet; 8. torsion spring; 9. rubber gasket; 10. buckle. DETAILED DESCRIPTION

[0020] See also Figures 1 to 3A cover door sensing device for a side sliding door car comprises a bracket 1 and a lock tongue 4. A pin shaft 3 is fixedly arranged on the front of the bracket 1. The pin shaft 3 can be fixed on the bracket 1 by means of threading, riveting, etc. A fixed end of a rotating arm 2 is hinged with the pin shaft 3. The rotating arm 2 is made of plastic material, which can reduce weight and save costs. A torsion spring 8 is arranged at the fixed end of the rotating arm 2. The torsion spring 8 is sleeved on the pin shaft 3. One end of the torsion spring 8 is fixedly connected to the rotating arm 2, and the other end is fixedly connected to the bracket 1. A micro switch 7 is arranged on the bracket 1. A boss 22 is radially extended from the fixed end of the rotating arm 2. The boss 22 is used to control the opening and closing of the micro switch 7 when the rotating arm 2 rotates, so that the micro switch 7 sends a cover door closing or opening signal to the electronic control unit (ECU). A protective sheet 71 is arranged on the micro switch 7 to protect the micro switch 7 and prevent other parts from falling or getting stuck beside the micro switch 7 during the vehicle installation process of the main engine factory, causing the micro switch 7 to fail. A strip hole 21 is provided at the free end of the rotating arm, and the strip hole 21 is used to install a cable connector 51 at one end of the cable 5 wire rope. The strip hole 21 leaves the cable connector 51 with a displacement degree of freedom, which can absorb the length of the cable wire rope and solve the problem of the wire rope breaking due to folding. The other end of the cable 5 wire rope is used to connect the interlocking mechanism. The back of the bracket 1 slides with the lock tongue 4, and a push arm 41 extending laterally is provided at the tail end of the lock tongue 4. The push arm 41 passes through the guide groove 11 provided on the bracket 1 and contacts the free end of the rotating arm 2, so that the push arm 41 can push the rotating arm 2 to rotate when sliding along the guide groove. Outward flanged protrusions are provided at both ends of the guide groove to limit and protect the push arm 41 when the lock tongue moves; the push arm 41 at the tail of the lock tongue 4 is L-shaped, and a slide groove 23 is provided on one side of the rotating arm 2. The L-shaped push arm 41 forms a sliding fit with the slide groove 23. When the lock tongue 4 is pushed, the push arm 41 can slide along the slide groove 23, thereby pushing the rotating arm 2 to rotate to unlock the interlocking mechanism, or the rotating arm 2 is driven by the torsion spring 8 to push the lock tongue 4 outward, and the interlocking mechanism is locked by pulling the cable 5. A cable fixing bracket 13 is provided on one side of the bracket 1, and the cable 5 is fixed on the cable fixing bracket 13; a sleeve mounting bracket 12 is provided on the other side of the bracket 1, and the sleeve mounting bracket 12 is provided with an open card slot 121. A lock tongue sleeve 6 is fixed on the sleeve mounting bracket 12 through the open card slot 121, and the head of the lock tongue 4 is installed in the lock tongue sleeve 6. The opening of the opening slot 121 is smaller than the diameter of the bolt sleeve 6, so as to prevent the bolt sleeve 6 from falling off from the opening. A connecting portion is provided at the extended end of the bolt sleeve 6, and the connecting portion is a structure such as a thread or a buckle. The device is fixedly connected to the vehicle body through the connecting portion. A rubber gasket (9) is sleeved on the bolt sleeve (6), so as to buffer and reduce the impact of the bolt during the movement of the bolt, thereby protecting the bolt. A buckle mounting hole 14 is provided on the bracket, and a buckle 10 is used to clamp and fix the bracket 1 on the vehicle body through the buckle mounting hole 14.

[0021] The working process of the present invention is as follows: when the fuel door or charging door of the side sliding door car is closed, the door presses the head of the lock tongue 4, pushes the lock tongue 4 to move leftward, thereby driving the rotating arm 2 to rotate clockwise, causing the torsion spring 8 to twist; when the rotating arm 2 rotates clockwise, on the one hand, the boss 22 at the fixed end of the rotating arm 2 presses down the spring of the micro switch 7, causing the micro switch 7 to send a door closing signal to the electronic controller (ECU), informing the driver that the door is closed; on the other hand, the cable 5 connected to the free end of the rotating arm 2 is pulled to unlock the interlocking mechanism, so that the side sliding door of the car can slide backward. Open; when the fuel door or charging door of the side sliding door car is opened, the door no longer suppresses the lock tongue 4, the torsion spring 8 recovers and drives the rotating arm 2 to rotate counterclockwise, thereby pushing the lock tongue 4 to move to the right and out, the boss 22 at the fixed end of the rotating arm 2 leaves the spring of the micro switch 7, the micro switch signal is disconnected, and the disconnection signal is sent to the electronic controller (ECU), informing the driver that the door has been opened, pulling the cable 5 connected to the free end of the rotating arm 2, so that the interlocking mechanism locks the slider of the side sliding door to limit the position, so that the side sliding door cannot slide backward, thereby protecting the fuel door or charging door.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A cover door sensing device for a side sliding door vehicle, comprising a bracket (1) and a locking tongue (4), characterized in that: A pin shaft (3) is fixedly arranged on the front side of the bracket (1), a fixed end of a rotating arm (2) is hinged to the pin shaft (3), a torsion spring (8) is arranged at the fixed end of the rotating arm (2), the torsion spring (8) is sleeved on the pin shaft (3), one end of the torsion spring (8) is fixedly connected to the rotating arm (2), and the other end is fixedly connected to the bracket (1), a strip hole (21) is arranged at the free end of the rotating arm (2), the strip hole (21) is used to install a cable connector (51) at one end of the steel wire rope of the cable (5), and the strip hole (21) leaves a cable connector (51) ) displacement freedom, the other end of the steel wire rope of the cable (5) is used to connect the interlocking mechanism, the back side of the bracket (1) is slidably matched with the lock tongue (4), and the tail end of the lock tongue (4) is provided with a laterally extending push arm (41), and the push arm (41) passes through the guide groove (11) provided on the bracket (1) and contacts with the free end of the rotating arm (2), and the locking tongue (4) pushes the rotating arm (2) to rotate so as to unlock the interlocking mechanism, or the torsion spring (8) drives the rotating arm (2) to push the lock tongue (4) outward, and the interlocking mechanism is locked by pulling the cable (5).

2. The cover door sensing device of a side sliding door vehicle according to claim 1, characterized in that: A micro switch (7) is provided on the bracket (1), and a boss (22) radially extends from the fixed end of the rotating arm (2). The boss (22) is used for the rotating arm (2) to rotate and control the opening and closing of the micro switch (7), thereby sending a signal for closing or opening the cover door.

3. The cover door sensing device of a side sliding door vehicle according to claim 2, characterized in that: A protective sheet (71) is provided on the micro switch (7) for protecting the micro switch (7).

4. The cover door sensing device of a side sliding door vehicle according to claim 1, characterized in that: The push arm (41) at the rear of the locking tongue (4) is L-shaped, and a slide groove (23) is provided on one side of the rotating arm (2). The push arm (41) is slidably matched with the slide groove (23), so that the push arm (41) can slide along the slide groove (23).

5. The cover door sensing device of a side sliding door vehicle according to claim 1, characterized in that: A sleeve mounting bracket (12) is provided on the side of the bracket (1), and the sleeve mounting bracket (12) is provided with an open slot (121). A lock tongue sleeve (6) is clamped on the sleeve mounting bracket (12) through the open slot (121), and the head of the lock tongue (4) is mounted in the lock tongue sleeve (6).

6. The cover door sensing device of a side sliding door vehicle according to claim 5, characterized in that: The opening of the opening slot (121) is smaller than the diameter of the locking tongue sleeve (6).

7. The cover door sensing device of a side sliding door vehicle according to claim 5, characterized in that: The extended end of the lock tongue sleeve (6) is provided with a connecting portion, which is used for fixed connection with the vehicle body. A rubber gasket (9) is sleeved on the lock tongue sleeve (6) for shock absorption.

8. The cover door sensing device of a side sliding door vehicle according to claim 1, characterized in that: The bracket (1) is provided with a buckle mounting hole (14), and a buckle (10) is clamped and fixed to the bracket (1) through the buckle mounting hole (14).

9. The cover door sensing device of a side sliding door vehicle according to claim 1, characterized in that: A cable fixing bracket (13) is provided on one side of the bracket (1), and the cable (5) is fixed on the cable fixing bracket (13).

10. The cover door sensing device of a side sliding door vehicle according to claim 1, characterized in that: Outwardly facing flanged protrusions are provided at both ends of the guide groove (11).

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