CN219451809U - Electric self-suction type electric opening mechanism for automobile tail door lock - Google Patents

Abstract

The utility model discloses an electric opening mechanism of an electric self-priming automobile tail door lock, which comprises a clamping plate, a clamping plate shaft, a return spring, a pawl shaft and a return spring, a worm wheel meshed with a worm on a motor shaft, and a driving gear meshed with an output gear coaxially fixed with the worm wheel; a convex block for pushing the release conversion rod to swing is fixed on one axial surface of the driving gear, the release conversion rod is hinged in an upper shell of the automobile tail door lock through a release conversion rod shaft, a poking block for poking a release plate is arranged at the lower end of the release conversion rod, the release plate for poking out the meshing of a pawl and a clamping plate to enable the clamping plate to be driven to the maximum release position by a clamping plate reset spring is hinged in the upper shell through a release plate shaft, and a spring for resetting the release plate and the release conversion rod is arranged in the upper shell; the device also comprises a clamping plate signal switch, a pawl signal switch and a cam signal switch. The electric opening mechanism has the advantages of relatively convenient operation, relatively simple and compact structure, relatively few parts and relatively low cost.

Description

Electric self-suction type electric opening mechanism for automobile tail door lock

Technical Field

The utility model relates to the technical field of automobile locks, in particular to an electric opening mechanism of an electric self-priming automobile tail door lock.

Background

In recent years, an electric self-priming automobile tail door lock gradually appears, when a person closes the tail door and the tail door lock is in a half-locking state due to insufficient force, an electric control part of the automobile detects and starts an electric self-priming locking mechanism to operate the automobile tail door lock from the half-locking state to the full-locking state, and safety accidents are basically prevented from happening.

The electric self-priming automobile tail door locks of the automobile tail door locks in the prior art are various in variety and structure and have advantages and disadvantages. If the electric opening mechanism is not provided, the unlocking is realized by manually pulling the release plate and other structures, and the operation convenience is not enough; some electric opening structures are relatively complex, parts are relatively more, and reliability in an operation process is not ideal; some of the layouts are relatively loose, relatively bulky, and both of the above costs are relatively high; some of the noise is still relatively loud.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an electric opening mechanism of an electric self-priming automobile tail door lock, which is relatively convenient to operate, relatively simple and compact in structure, relatively few in part transition and relatively low in cost.

The technical scheme is that the electric opening mechanism of the electric self-priming automobile tail door lock comprises a clamping plate hinged on a base through a clamping plate shaft, clamping plate reset springs arranged on the base and the clamping plate, a pawl hinged on the base through a pawl shaft, a pawl reset spring arranged on the base and the pawl, a worm wheel meshed with a worm on a motor shaft of a motor, and a driving gear meshed with an output gear coaxially fixed with the worm wheel; a convex block for pushing the release conversion rod to swing is fixed on one axial surface of the driving gear, the release conversion rod is hinged in an upper shell of the automobile tail door lock through a release conversion rod shaft, a poking block for poking a release plate is arranged at the lower end of the release conversion rod, the poking block is used for poking out the meshing of a pawl and a clamping plate, so that the release plate of the clamping plate to a full-open position under the drive of a clamping plate reset spring is hinged in the upper shell through a release plate shaft, and a spring for resetting the release plate and the release conversion rod is arranged in the upper shell; a clamping plate signal switch which enables the motor to start a driving gear and a lug resetting program when the clamping plate is positioned at the full-open position and the clamping plate presses the cambered surface to press the first contact is arranged in the base; a pawl signal switch which enables the motor to start a driving gear and a lug resetting program when the pawl is positioned at the maximum release position and the pawl pressing cambered surface presses the second contact is arranged in the base; the upper shell is internally provided with a cam signal switch which stops the motor to stop the reset of the driving gear and the convex block when the cam pressing cambered surface of the cam fixed on the other axial surface of the driving gear presses the third contact.

After adopting the structure, the electric opening mechanism of the electric self-priming automobile tail door lock has the following advantages: under the tail-gate lock is in half lock position or full lock position or state, all can switch on the power, for example, start electronic opening mechanism and realize electronic full-open function by pressing the button, the operation is relatively convenient, simple structure, the part is retrencied, if cardboard signal switch and pawl signal switch are in start and operation do not push down and do not switch on, the pawl moves to the biggest release position and the cardboard is located full-open position, the cardboard of cardboard presses the cambered surface and presses the first contact of cardboard signal switch, the pawl of pawl presses the cambered surface simultaneously presses the second contact of pawl signal switch, automatic start drive gear and lug reset promptly, the motor stall is accomplished and reset when the cam presses the cambered surface to press the third contact, spare part compression is minimum, operating procedure is stable, reliable and safe, electronic opening mechanism's overall arrangement is compact, the volume is relatively little, raw and manufacturing costs are all relatively practiced thrift.

Further, the release plate and the upper shell are provided with a release plate and a release switching lever reset spring, wherein the release plate is used for resetting the release plate and pushing the release switching lever to reset. After adopting above structure, release board and release transfer lever share a reset spring, make the structure compacter, the volume is littleer, and the cost is more saved.

Further, the pawl-driving end of the release plate is preferably at an angle of 100 ° to 120 ° to the release plate body. After the structure is adopted, the stirring angle of the release plate positioned in the upper shell and the base which are communicated is more ideal, and the ratchet stirring process is more stable, reliable and flexible.

Further, a spring steel arc pressing piece for expanding the pressing angle and the pressing area of the pawl pressing arc to the second contact is fixed on the pawl signal switch. After adopting above structure, overcome the pawl and pressed the cambered surface and be relatively little, press the less ideal not enough of angle, make the operation more convenient, stable and reliable.

Further, the base is internally provided with an 8-shaped buffer block shared by the pawl and the clamping plate. After the structure is adopted, one buffer block is dual-purpose, is used as a buffer block of a pawl and a buffer block of a clamping plate, and has the advantages of being more compact in structure, smaller in size and more cost-saving on the premise of guaranteeing buffering and noise reduction effects.

Drawings

Fig. 1 is a schematic view of the structure of the electric opening mechanism of the present utility model when connected to the upper case, the base and other related parts (the clamping plate is located at the half-locking position).

Fig. 2 is a schematic view of the structure of the electric opening mechanism of the present utility model in the half-lock position to start the full-open program.

Fig. 3 is a second schematic structural view of the electric opening mechanism of the present utility model when connected to the upper case, the base and other related parts (the clamping plate is in the fully locked position).

Fig. 4 is a schematic view of the structure of the electric opening mechanism of the present utility model in the fully locked position to start the fully open procedure.

Fig. 5 is a schematic diagram of the structure of the present utility model when the gear to be driven and the bump are reset in the fully open position.

Fig. 6 is a second schematic structural view of the gear to be driven and the bump in the fully opened position.

Fig. 7 is a schematic view of the structure of the back surface, i.e., the other axial surface, of the drive gear in fig. 6.

The figure shows: 1. the motor, 2, upper part of backplate, 3, the cardboard reset spring, 4, the base, 5, the cardboard, 6, the cardboard axle, 7, the detent axle, 8, the pawl reset spring, 9, the pawl, 10, the drain pan, 11, the gear shaft, 12, the worm axle, 13, the motor shaft, 14, the worm, 15, the worm wheel, 16, drive gear, 17, release transfer lever, 18, release transfer lever axle's installation screw, 19, toggle block, 20, 8 font buffer block, 21, release plate, 22, release plate axle, 23, the lug, 24, the lid, 25, output gear, 26, the second switch box, 27, the pawl signal switch, 28, the second contact, 29, the pawl presses the cambered surface, 30, the support, 31, the first contact, 32, the fretwork, 33, the cardboard signal switch, 34, the first switch box, 35, the cardboard presses the cambered surface, 36, the cam signal switch, 37, the third switch box, 38, release plate main body, 39, the drive end, 40, the spring steel cambered surface presses, 41, release plate and release transfer lever reset spring, 42, the cam contact, 43, 44, the third pressing cambered surface.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. It should be noted that the description of these embodiments is for aiding in understanding the present utility model, but is not to be construed as limiting the utility model. In addition, the technical features described in the following embodiments of the present utility model may be combined with each other as long as they do not collide with each other.

As shown in fig. 1, 2, 3, 4, 5, 6, and 7.

The tail gate may include an upper shell and a base 4. The upper shell may comprise a cover 24 and an upper portion 2 of the back plate. The base 4 may include a bottom shell 10, a lower portion of the back plate, and a support 30 located in the bottom shell 10 and the lower portion of the back plate, and the support 30 may have a plurality of hollows 32, so that the movement of parts such as the expansion and contraction of contacts, etc., is facilitated, and the U-shaped locking groove is disposed in the middle of the bottom of the support 30, and the support 30 plays a role in installing parts and reinforcing. The upper part 2 of the back plate and the lower part of the back plate are at an angle of about 100 deg. -130 deg. to each other. The upper shell is communicated with the base 4 and is used for connecting and driving the parts in the upper shell and the parts in the base 4 through a communicated channel. The back plate is also referred to as the front plate.

This electronic self-priming automobile tail lock's electronic opening mechanism includes: and the clamping plate 5 is hinged on the base 4 through a clamping plate shaft 6, and the clamping plate reset spring 3 is arranged on the base 4 and the clamping plate 5. A pawl 9 hinged on the base 4 via a pawl shaft 7, and a pawl return spring 8 provided on the base 4 and the pawl 9. A worm wheel 15 engaged with a worm 14 on a motor shaft 13 of the motor 1, and a drive gear 16 engaged with an output gear 25 coaxially fixed with the worm wheel 15. It will be appreciated that the worm wheel 15 and the output gear 25 may be coaxially fixed by screw fixation or adhesive fixation, or may be integrally formed, such as by injection molding. Of the worm wheel 15 and the output gear 25 which are coaxially fixed, the worm wheel 15 is large and the output gear 25 is small. The catch plate 5 is also called ratchet. The pawl 9 is also called a holding pawl. The motor 1 can be fixed in the upper housing as a snap fit or screw threaded, the worm wheel 15 and the output gear 25 are rotatably fitted on the upper part 2 of the back plate via the worm wheel shaft 12, and the drive gear 16 is rotatably fitted on the upper part 2 of the back plate via the gear shaft 11.

A bump 23 for pushing the release switching lever 17 to swing is fixed on an axial surface of the driving gear 16, the release switching lever 17 is hinged in an upper shell of the automobile tail door lock through a release switching lever shaft, a poking block 19 for poking a release plate 21 is arranged at the lower end of the release switching lever 17, the release plate 21 for poking the pawl 9 to be meshed with the clamping plate 5 so that the clamping plate 5 is driven by the clamping plate return spring 3 to a full-open position is hinged in the upper shell through a release plate shaft 22, and a spring for returning the release plate 21 and the release switching lever 17 is arranged in the upper shell. The protruding block 23 and an axial surface of the driving gear 16 are fixed, for example, the protruding block 23 and the driving gear 16 are integrally formed by one-time injection molding. A release switch lever shaft (not shown) may be mounted on the upper housing via a mounting screw 18 of the release switch lever shaft.

Referring to fig. 5, the base 4 has a card signal switch 33 therein for enabling the motor 1 to start the reset procedure of the driving gear 16 and the bump 23 when the card 5 is in the fully open position and the card pressing arc surface 35 presses the first contact 31. The base 4 has a pawl signal switch 27 therein for causing the motor 1 to start a reset procedure of the drive gear 16 and the bump 23 when the pawl 9 is at the maximum release position and the pawl pressing arc 29 presses the second contact 28, preferably by a spring steel arc pressing piece 40 described below. Referring to fig. 7, the upper case has therein the cam signal switch 36 for stopping or completing the reset of the drive gear 16 and the bump 23 when the cam pressing arc surface 43 of the cam 42 fixed to the other axial surface of the drive gear 16 presses the third contact 44 of the cam signal switch 36, and the motor 1 stops. The fully open position is also referred to as a fully open state. The pressing cambered surface is also called pressing cambered surface. It will be appreciated that the cam 42 is fixed to the other axial surface of the drive gear 16 as the cam 42 and the projection 23 are integrally molded with the drive gear 16, i.e., injection molded as a single piece.

The card signal switch 33, the pawl signal switch 27 and the cam signal switch 36 can be commercially available micro switches. The card signal switch 33 may be mounted, e.g., snapped or screwed, on the support 30 in the base 4 via the first switch box 34. The pawl signal switch 27 can be mounted, e.g., snapped or screwed, via the second switch box 26 to a mount 30 in the base 4. The cam signal switch 36 may be mounted, e.g. screwed, on the upper part 2 of the back plate via a third switch box 37. It will be appreciated that the electrical components of the motor 1, the card signal switch 33, the ratchet signal switch 27, and the cam signal switch 36 are all electrically connected to an electrical control portion of the vehicle, such as the BCM of the vehicle.

The release plate 21 and the upper case are provided with a release plate for restoring the release plate 21 and pushing the release switching lever 17 to restore and a release switching lever restoring spring 41. That is, only one return spring may be provided on the release plate 21 for simultaneously returning the release plate 21 and the release switching lever 17.

The pawl driving end 39 of the release plate 21, or ratchet drive plate, is preferably at an angle of 100-120 with respect to the release plate body 38.

The pawl signal switch 27 is preferably fixed with a spring steel arc pressing piece 40 for enlarging the pressing angle and pressing area of the pawl pressing arc surface 29 to the second contact 28, for example, by welding or screwing.

The clamping plate 5 is preferably provided with a clamping plate plastic-coated sleeve. The pawl 9 is preferably provided with a pawl plastic-coated sleeve. The metal body of the clamping plate 5 and/or the metal body of the pawl 9 can be exposed at the respective stress points, and the clamping plate 5 and the pawl 9 can be completely covered by a plastic cover. The noise generated by the mutual collision of the metal bodies of the pawl 9 and the metal bodies of the clamping plate 5 during working is avoided, and the service lives of the pawl 9 and the clamping plate 5 are further prolonged.

The base 4 is preferably internally provided with an 8-shaped buffer block 20 which is shared by the pawl 9 and the clamping plate 5. The 8-shaped buffer block 20 can be made of rubber.

It will be appreciated that the electric unlocking mechanism of the electric self-priming automobile tail door lock shares many parts with the electric self-priming locking mechanism in another application, such as the upper shell, the base 4, the clamping plate 5, the ratchet 9, the motor 1, the worm 14, the worm wheel 15, the clamping plate signal switch 33, the cam signal switch 36 and the like. The only difference is that the face is applied, e.g. the cam 23 is fixed to one axial surface of the drive gear 16, while the cam 42 of the electric self-priming locking mechanism, which is mainly used for a full lock, is fixed to the other axial surface of the drive gear 16. Of course, the action of the cam pressing arc surface 43 of the cam 42 in cooperation with the cam signal switch 36 to reset is the same. Or just opposite rotation direction, for example, the rotation direction of the driving gear 16 is just opposite to the rotation direction of the electric self-priming locking mechanism during the full-opening operation of the electric opening mechanism.

As shown in fig. 2, when the electric opening mechanism is located at a half-locking position or a half-locking state where the clamping plate 5 is meshed with the ratchet wheel 9, or as shown in fig. 4, when the electric opening mechanism is located at a full-locking position or a full-locking state where the clamping plate 5 is meshed with the ratchet wheel 9, the tail door lock or the full-opening tail door lock needs to be opened: at this time, the first contact 31 of the card signal switch 33 is not contacted with the card pressing arc surface 35 of the card 5, the card signal switch 33 is in a power-off state, at this time, the second contact 28 of the pawl signal switch 27 is preferably not contacted with the pawl pressing arc surface 29 of the pawl 9 and the pawl spring steel arc pressing sheet 40, and the pawl signal switch 27 is in a power-off state; when the driver turns on the power supply, for example, presses a button to start the motor 1, the worm 14, the worm wheel 15 and the output gear 25 drive the driving gear 16 to rotate anticlockwise around the gear shaft 11, the convex block 23 pushes the release switching rod 17 to rotate clockwise around the release switching rod shaft to drive the release plate 21 to rotate anticlockwise around the release plate shaft 22, the pawl driving end 39 of the release plate 21 pushes the pawl 9 to rotate anticlockwise around the pawl shaft 7, so that the pawl 9 is moved to the maximum release position shown in fig. 6, and at the moment, the clamping plate 5 rotates clockwise around the clamping plate shaft 6 to the fully open position under the acting force of the clamping plate reset spring 3, so that the electric opening function from the half-lock position or the fully-lock position to the fully open position is realized. Full open is also referred to as open or open. The maximum release position is also referred to as the maximum release point.

As shown in fig. 5, 6 and 7, when the full-open operation is completed, the first contact 31 of the card signal switch 33 is pressed by the card pressing arc surface 35 of the card 5 to be energized, meanwhile, the ratchet signal switch 27 is energized by pressing the second contact 28 of the pawl signal switch 27 by the pawl pressing arc surface 29 of the pawl 9, preferably the pawl spring steel arc pressing piece 40, so as to start the motor 1 to rotate reversely, the driving gear 16 is driven to rotate clockwise around the gear shaft 11 by the worm 14, the worm wheel 15 and the output gear 25, at this time, the release plate 21 is driven to rotate clockwise around the release plate shaft 22 by the release plate and release switching lever return spring 41, and meanwhile, the release switching lever 17 is pushed to rotate counterclockwise, at this time, the pawl 9 rotates counterclockwise under the action of the pawl return spring 8 to return to the initial position which is against or in engagement with the full-open position of the card 5, and at the same time, the cam pressing arc surface 43 of the cam 42 on the other axial surface of the driving gear 16 presses the third contact 44 of the cam signal switch 36 to be de-energized, and the motor 1 stops rotating and completes the reset of the driving gear 16 and the bump 23.

The drawings are schematic only, where the drawings do not conform to the written description or where the drawings do not conform to each other, the written description will take precedence.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The electric opening mechanism of the electric self-priming automobile tail door lock comprises a clamping plate hinged on a base through a clamping plate shaft, a clamping plate reset spring arranged on the base and the clamping plate, a pawl hinged on the base through a pawl shaft, a pawl reset spring arranged on the base and the pawl, a worm wheel meshed with a worm on a motor shaft of a motor, and a driving gear meshed with an output gear coaxially fixed with the worm wheel; the method is characterized in that: a convex block for pushing the release conversion rod to swing is fixed on one axial surface of the driving gear, the release conversion rod is hinged in an upper shell of the automobile tail door lock through a release conversion rod shaft, a poking block for poking a release plate is arranged at the lower end of the release conversion rod, the poking block is used for poking out the meshing of a pawl and a clamping plate, so that the release plate of the clamping plate to a full-open position under the drive of a clamping plate reset spring is hinged in the upper shell through a release plate shaft, and a spring for resetting the release plate and the release conversion rod is arranged in the upper shell; a clamping plate signal switch which enables the motor to start a driving gear and a lug resetting program when the clamping plate is positioned at the full-open position and the clamping plate presses the cambered surface to press the first contact is arranged in the base; a pawl signal switch which enables the motor to start a driving gear and a lug resetting program when the pawl is positioned at the maximum release position and the pawl pressing cambered surface presses the second contact is arranged in the base; the upper shell is internally provided with a cam signal switch which stops the motor to stop the reset of the driving gear and the convex block when the cam pressing cambered surface of the cam fixed on the other axial surface of the driving gear presses the third contact.

2. The electric opening mechanism for an electric self-priming automobile tail gate lock of claim 1, wherein: the release plate and the upper shell are provided with a release plate for resetting the release plate and pushing the release switching lever to reset, and a release switching lever reset spring.

3. The electric opening mechanism for an electric self-priming automobile tail gate lock of claim 1, wherein: the pawl driving end of the release plate and the release plate main body form an included angle of 100-120 degrees.

4. The electric opening mechanism for an electric self-priming automobile tail gate lock of claim 1, wherein: the pawl signal switch is fixed with a spring steel arc pressing piece for expanding the pressing angle and the pressing area of the pawl pressing arc to the second contact.

5. The electric opening mechanism for an electric self-priming automobile tail gate lock of claim 1, wherein: the base is internally provided with a 8-shaped buffer block shared by the pawl and the clamping plate.