Automobile door lock signal triggering mechanism

Abstract

The utility model provides an automobile door lock signal triggering mechanism which comprises a pawl assembly, a ratchet wheel assembly, a driving device and a shell, the pawl assembly and the ratchet wheel assembly form position forms of a full-locking state, a semi-locking state and a full-unlocking state of a door lock under the action of the driving device, a signal switch and a signal triggering rod are fixedly arranged on the shell, and the signal triggering rod is connected with the pawl assembly and the ratchet wheel assembly. The signal triggering rod is separated from the signal switch under the action of the rotating shaft device, the torsion spring device, the pawl assembly and the ratchet wheel assembly only when the door lock is in a full-locking state, and the signal switch conducts signal jumping. According to the automobile door lock signal triggering mechanism, through a set of signal switches, when the ratchet wheel assembly and the pawl assembly normally move to the locking state, locking signals can be fed back to the whole automobile structure, whether an automobile door is in the completely closed state or not can be accurately and reliably fed back, the structure is compact, and the reliability is high. And full-lock state signal determination can be realized in a small stroke, and the accuracy is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile door locks, in particular to an automobile door lock signal triggering mechanism. Background Art

[0002] With the development of science and technology, the requirements for automation in automobiles are getting higher and higher. Various components are improving the automation of component mechanism movement to meet people's needs for operability, comfort, speed and convenience.

[0003] Regarding the door lock status signal triggering, the existing design is that the ratchet and pawl half-open have independent switches to feedback the position of the ratchet pawl. Each switch has two leads leading out from the switch and connected to the vehicle body electronic system, which will complicate the electronic circuit of the lock body itself and increase the difficulty of the process.

[0004] There have been many improvements on the signal switch mechanism of automobile door locks in the prior art. For example, Chinese patent No. CN107068441A discloses a parallel micro switch structure of an automobile electric door lock, which includes a bracket, a lock tongue, a rivet, a cam, a first micro switch and a second micro switch. The rivet is riveted to the bracket, and the lock tongue and the cam are respectively mounted on the rivet. The cam can rotate around the rivet with the lock tongue; a third feature is provided on the cam, and during the unlocking process, the third feature can rotate with the lock tongue. The cams rotate together and press the contacts on the first microswitch and the second microswitch, thereby triggering the output of the switch signal. When the third feature does not press the contacts on the first microswitch and the second microswitch, the switch signal outputs a signal that the door lock is in a fully locked state. When the third feature presses the contacts on the first microswitch but does not press the contacts on the second microswitch, the switch signal outputs a signal that the door lock is in a semi-locked state. When the third feature presses the contacts on the first microswitch and the second microswitch, the switch signal outputs a signal that the door lock is in a fully open state. However, in actual use, the scheme of realizing signal detection and transmission through a parallel microswitch structure leads to inaccurate switch feedback of the ratchet pawl position due to the independence of switch control and the discontinuity of part movement.

[0005] The applicant's previously disclosed CN220301961U patent discloses a car side door lock with an auxiliary door opening and closing structure, including: an electric opening mechanism and a self-priming ice-breaking auxiliary device, the self-priming ice-breaking auxiliary device includes a rotating rod, an ice-breaking push rod, and a self-priming push rod. The rotating rod can be pulled and rotated by a cable mechanism, and reset when the cable mechanism is not working. The ice-breaking push rod and the self-priming push rod are hinged on the rotating rod. Under the auxiliary self-priming working condition, the self-priming push rod pushes the ratchet to work, and the auxiliary ice-breaking function of the self-priming ice-breaking auxiliary device fails. Under the auxiliary ice-breaking working condition, the ice-breaking push rod pushes the ratchet to work, and the auxiliary self-priming function of the self-priming ice-breaking auxiliary device fails. However, for the car door lock, during the self-priming process, when the car door lock is changed from a semi-locked state to a fully locked state, when the ratchet device is rotated to a fully locked state under the action of the driving device, if the pawl device cannot be reset due to other factors such as icing, when the driving device is reset, the ratchet device may be disengaged from the fully locked state because the pawl device does not limit the ratchet device. In this solution, two signal switches are set to realize signal feedback on whether the ratchet device and the pawl device are reset in the fully locked state. The structure and control program are relatively complex and the cost is relatively high.

[0006] Based on this, this application is specially filed. Utility Model Content

[0007] In view of this, the utility model aims to propose a car door lock signal trigger mechanism, which realizes signal feedback of the ratchet device and pawl device of the car door lock in the fully locked position state through a group of signal switches, simplifies the layout structure of the signal feedback device, and accurately and reliably realizes signal feedback of whether the car door lock is in the fully locked state.

[0008] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0009] A vehicle door lock signal triggering mechanism, comprising:

[0010] A pawl assembly, a ratchet assembly and a driving device installed in the housing, wherein the pawl assembly and the ratchet assembly form the door lock in a fully locked state, a half-locked state and a fully opened state under the action of the driving device;

[0011] A signal switch is fixedly arranged on the housing and connected to the vehicle body controller;

[0012] A signal trigger rod, under the action of the rotating shaft device, the torsion spring device, the pawl assembly and the ratchet assembly, the signal trigger rod is disengaged from the signal switch only when the door lock is in a fully locked state, and the signal switch performs a signal jump, wherein the torsion spring device is arranged on one end of the signal trigger rod close to the signal switch and causes the end to rotate along the rotating shaft device toward a side away from the signal switch.

[0013] Furthermore, the signal trigger rod includes a ratchet crimping portion, a pawl crimping portion and a first pin shaft hole, the first pin shaft hole is sleeved on the rotating shaft device, the ratchet crimping portion and the pawl crimping portion are arranged on opposite sides of the first pin shaft hole, the ratchet crimping portion is used for crimping and limiting the ratchet assembly when the work position is changed, and the pawl crimping portion is used for crimping and limiting the pawl assembly when the work position is changed. In the fully locked state, the ratchet crimping portion and the pawl crimping portion are relatively disengaged from the ratchet assembly and the pawl assembly and cause the signal trigger rod to rotate in a direction away from the signal switch, and the signal jump of the signal switch is accurately fed back to the entire vehicle door to be in a safe closed state.

[0014] Furthermore, the pawl assembly includes a pawl-link pushing mechanism, and the ratchet assembly includes a ratchet-link pushing mechanism. The pawl-link pushing mechanism always acts on the pawl crimping part and crimps it to the signal switch in a non-fully locked state, and the ratchet-link pushing mechanism always acts on the ratchet crimping part and drives the pawl crimping part to be crimped to the signal switch in a non-fully locked state.

[0015] Furthermore, a limiting device is provided on the housing, and the limiting device is used to limit the ratchet crimping portion on the signal trigger rod when it rotates toward a side away from the signal switch under the action of the torsion spring device.

[0016] Furthermore, the ratchet crimping portion includes a rotating crimping portion and a first avoidance groove, the rotating crimping portion is arranged in an arc shape, and the first avoidance groove is an avoidance portion that is recessed along the tangent direction of the rotating crimping portion toward the center of the arc.

[0017] Furthermore, the pawl crimping portion includes a first mounting plate and a crimping boss, the first mounting plate and the crimping boss are arranged in a step-like shape, the first mounting plate is used to install and fix the torsion spring device, and the signal switch and the pawl connecting rod pushing mechanism can respectively abut against the opposite sides of the crimping boss along the rotation direction of the pawl crimping portion.

[0018] Furthermore, the door lock is in a fully locked state, the ratchet connecting rod pushing mechanism in the ratchet assembly slides into the first avoidance groove in the signal trigger rod, the pawl connecting rod pushing mechanism in the pawl assembly rotates counterclockwise, and the signal trigger rod rotates counterclockwise under the action of the torsion spring device to disengage from the signal switch.

[0019] Furthermore, the pawl assembly also includes a pawl, a first torsion spring, a first pin and a pawl connecting rod. The pawl and the pawl connecting rod are connected as a whole through the first torsion spring and the first pin shaft. The pawl connecting rod pushing mechanism is integrally arranged on the pawl connecting rod near the end of the pawl crimping portion.

[0020] Furthermore, the ratchet assembly includes a ratchet, a second torsion spring, a second pin and a ratchet connecting rod, the ratchet and the ratchet connecting rod are connected as a whole through the second torsion spring and the second pin, and the ratchet connecting rod pushing mechanism is integrally arranged on the end of the ratchet connecting rod close to the ratchet crimping part.

[0021] Furthermore, the above-mentioned automobile door lock signal triggering mechanism is applied to a self-closing automobile door lock, and the automobile door lock includes a base, an upper cover and a side cover, and the upper cover is detachably connected to the base and the side cover to form a shell.

[0022] Compared with the prior art, the automobile door lock signal triggering mechanism described in the utility model has the following advantages:

[0023] (1) The automobile door lock signal trigger mechanism described in the utility model optimizes the structure of the ratchet assembly, the pawl assembly and the signal trigger rod. Through a set of signal switches, when the ratchet assembly and the pawl assembly move normally to the locked state, a locking signal is fed back to the entire vehicle structure. It can accurately and reliably feedback whether the automobile door is in a completely closed state. The structure is compact and the full lock state signal can be determined in a small stroke. The accuracy is high, which improves the stability, reliability and user experience of the system and provides effective protection for the safety and comfort of the vehicle.

[0024] (2) The automobile door lock signal triggering mechanism described in the utility model optimizes the structural design, simplifies the component assembly structure, reduces costs, and improves the accuracy and reliability of signal feedback. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the automobile door lock signal triggering mechanism according to an embodiment of the utility model;

[0027] Figure 2 This is a structural schematic diagram of a ratchet in an open position in a signal triggering mechanism for a vehicle door lock according to an embodiment of the utility model;

[0028] Figure 3 This is a structural schematic diagram of a ratchet in a semi-locked position in a signal triggering mechanism for a vehicle door lock according to an embodiment of the utility model;

[0029] Figure 4 This is a structural schematic diagram of a ratchet in a fully locked position in a vehicle door lock signal triggering mechanism according to an embodiment of the utility model;

[0030] Figure 5It is a structural schematic diagram of the automobile door lock signal triggering mechanism according to an embodiment of the utility model, in which the ratchet wheel is in an open state and the pawl is in a pressed signal switch state;

[0031] Figure 6 It is a perspective structural diagram of the signal trigger lever according to the embodiment of the utility model being reset in a fully locked state;

[0032] Figure 7 for Figure 6 A schematic diagram of the structure from a second viewing angle of the structure shown in ;

[0033] Figure 8 This is a schematic diagram of the structure of the automobile door lock according to the embodiment of the utility model after removing the upper cover;

[0034] Fig. 9 This is a schematic diagram of the structure of the automobile door lock according to an embodiment of the utility model;

[0035] 1- pawl assembly; 101- pawl; 102- first torsion spring; 103- first pin shaft; 104- pawl connecting rod; 105- pawl connecting rod driving mechanism; 2- ratchet assembly; 201- ratchet; 202- second torsion spring; 203- second pin shaft; 204- ratchet connecting rod; 205- ratchet connecting rod driving mechanism; 3- signal trigger rod; 301- ratchet crimping part; 3011- rotating crimping part; 3012- first avoidance groove; 302- pawl crimping part; 3021- first mounting plate; 3022- crimping boss; 303- first pin shaft hole; 4- signal switch; 5- housing; 501- base; 502- side cover; 503- upper cover; 6- rotating shaft device; 7- torsion spring device; 8- limiting device; 9- driving device. DETAILED DESCRIPTION

[0036] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention are described in detail below with reference to specific drawings.

[0037] It should be noted that all terms used in the present invention for directional and positional indications, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "lower", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection conditions between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] like Figures 1 to 8 As shown, the present application discloses a vehicle door lock signal triggering mechanism, comprising:

[0041] A pawl assembly 1, a ratchet assembly 2 and a driving device 9 are installed in the housing 5. The pawl assembly 1 and the ratchet assembly 2 form the position forms of the door lock in a fully locked state, a half-locked state and a fully opened state under the action of the driving device 9;

[0042] The signal switch 4 is fixedly arranged on the housing 5 and connected to the vehicle body controller;

[0043] The signal trigger rod 3, under the action of the rotating shaft device 6, the torsion spring device 7, the pawl assembly 1 and the ratchet assembly 2, disengages from the signal switch 4 only when the door lock is in a fully locked state, and the signal switch 4 performs a signal jump, wherein the torsion spring device 7 is arranged on a side of the signal trigger rod 3 close to the signal switch 4 and causes the end to rotate along the rotating shaft device 6 toward a side away from the signal switch 4.

[0044] The automobile door lock signal trigger mechanism disclosed in the present application is an improvement on the signal feedback structure of whether the existing automobile self-priming door lock structure is completely in a fully locked state. By setting a signal switch 4, when the ratchet assembly 2 of the automobile door lock moves to the fully locked state under the action of the driving device 9, the pressing force of the ratchet assembly 2 and the signal trigger rod 3 is disengaged, the pawl assembly 1 is reset, and the signal trigger rod 3 is disengaged from the signal switch 4 under the action of the torsion spring device 7, so that the signal switch 4 jumps, thereby outputting a signal feedback that the automobile door lock is in a fully locked state to the vehicle body controller. If the pawl assembly 1 or the pawl assembly 1 is in a non-fully locked state or the pawl assembly 1 is not reset due to ice in the fully locked state, the signal trigger rod 3 can still be pressed onto the signal switch 4 under the action of the torsion spring device 7, so that the signal switch 4 is in a pressed state. As an example of the present application, the signal switch 4 is in a The pawl assembly 1 and the ratchet assembly 2 in the automobile door lock are in a completely closed state when the pawl assembly 1 and the ratchet assembly 2 are in a fully locked state. The torsion spring device 7 is arranged on the side of the signal trigger rod 3 close to the signal switch 4, and the end is rotated along the shaft device 6 toward the side away from the signal switch 4, so that the layout of the entire trigger mechanism is more compact, which helps to optimize the use of the internal space, while reducing unnecessary supporting structures and connecting parts, better resisting the interference of environmental factors, optimizing the overall design, and improving the accuracy and reliability of the signal trigger mechanism. The elastic force of the torsion spring device 7 ensures the precise movement of the signal trigger rod 3 in different states (fully locked, half locked, fully open), ensures the accurate jump of the signal switch 4, and transmits the correct door lock state information to the vehicle body controller.

[0045] The automobile door lock signal triggering mechanism disclosed in the present application optimizes the structural design, simplifies the component assembly structure, reduces the cost, and improves the accuracy and reliability of signal feedback.

[0046] As a preferred example of the present application, the signal trigger rod 3 includes a ratchet crimping portion 301, a pawl crimping portion 302 and a first pin shaft hole 303, the first pin shaft hole 303 is sleeved on the rotating shaft device 6, the ratchet crimping portion 301 and the pawl crimping portion 302 are arranged on opposite sides of the first pin shaft hole 303, the ratchet crimping portion 301 is used for crimping and limiting the ratchet assembly 2 when the work position is changed, and the pawl crimping portion 302 is used for crimping and limiting the pawl assembly 1 when the work position is changed. In the fully locked state, the ratchet crimping portion 301 and the pawl crimping portion 302 are relatively disengaged from the ratchet assembly 2 and the pawl assembly 1 and cause the signal trigger rod 3 to rotate in a direction away from the signal switch 4, and the signal jump of the signal switch 4 is accurately fed back to the entire vehicle door to be in a safe closed state. The design discloses a specific structure of a signal trigger rod 3, including a ratchet crimping portion 301, a pawl crimping portion 302 and a first pin shaft hole 303, which realizes precise positioning and signal feedback of the ratchet assembly 2 and the pawl assembly 1. The ratchet crimping portion 301 and the pawl crimping portion 302 interact with the ratchet assembly 2 and the pawl assembly 1 respectively, thereby establishing a set of signal switches 4 to realize accurate detection of whether the ratchet assembly 2 and the pawl assembly 1 are in a fully locked state when the door lock is fully locked. At the same time, the signal trigger rod 3 is fixed to the rotating shaft device 6 through the first pin shaft hole 303, so that the ratchet crimping portion 301 and the pawl crimping portion 302 can move stably and accurately during operation, reducing errors caused by loose or misaligned components. The entire assembly structure is relatively compact, reducing the number and complexity of components, and helping to optimize the overall design of the door lock mechanism. In the semi-locked or fully open state, the ratchet crimping portion 3 01 and the pawl crimping part 302 will keep in contact with the ratchet assembly 2 and the pawl assembly 1 respectively, the signal trigger rod 3 is always in a state of non-rotation, and the signal switch 4 remains in a normal connected state until in the full-lock state, the ratchet crimping part 301 and the pawl crimping part 302 are relatively disengaged from the pawl assembly 1 and the ratchet assembly 2, and the signal trigger rod 3 rotates and moves away from the signal switch 4, triggering the signal jump, ensuring that the signal switch 4 timely and accurately feeds back the signal of the full-lock state, has strong anti-interference ability, can maintain a stable working state under various environmental conditions (such as vibration, icing, etc.), provides accurate signal feedback, and is convenient for maintenance personnel to inspect, repair and replace, reducing maintenance time and cost.

[0047] Through the precise design of the signal trigger rod 3, the automobile door lock signal trigger mechanism described in the present application simplifies the design, optimizes the structure, improves the accuracy of signal feedback and the environmental adaptability of the system, and facilitates maintenance and adjustment, thereby significantly improving the overall performance and user experience of the automobile door lock system.

[0048] As a preferred example of the present application, the pawl assembly 1 includes a pawl connecting rod pushing mechanism 105, and the ratchet assembly 2 includes a ratchet connecting rod pushing mechanism 205. The pawl connecting rod pushing mechanism 105 always acts on the pawl crimping portion 302 and crimps it to the signal switch 4 in a non-fully locked state, and the ratchet connecting rod pushing mechanism 205 always acts on the ratchet crimping portion 301 in a non-fully locked state and drives the pawl crimping portion 302 to be crimped to the signal switch 4. In the example of the present application, in the fully locked state, the pawl crimping portion 302 and the ratchet crimping portion 301 on the signal trigger rod 3 are disengaged from the pawl connecting rod pushing mechanism 105 and the ratchet connecting rod pushing mechanism 205, and the signal trigger rod 3 is disengaged from the signal switch 4 under the action of the rotating shaft device 6 and the torsion spring device 7. As a specific example of the present application, by arranging a ratchet link pushing mechanism 205 on the ratchet assembly 2, when the ratchet assembly 2 moves from a fully open state or a semi-locked state to a fully locked state under the action of the driving device 9, the ratchet link pushing mechanism 205 is always pressed against the ratchet pressing portion 301 of the signal trigger rod 3 under the rotation of the ratchet assembly 2, and the signal trigger rod 3 is pressed against the signal switch 4 to overcome the force of the torsion spring device 7, until the ratchet assembly 2 moves to the fully locked state, and the ratchet link pushing mechanism 205 is not pressed against the ratchet pressing portion 301 of the signal trigger rod 3 under the rotation of the ratchet assembly 2. 01 is relatively disengaged, and at this time, if the pawl assembly 1 is reset, the pawl connecting rod pushing mechanism 105 on the pawl assembly 1 is disengaged from the pawl crimping portion 302 of the signal trigger rod 3, and the signal trigger rod 3 and the pawl connecting rod pushing mechanism 105 and the ratchet connecting rod pushing mechanism 205 are all in the disengaged state, the pawl crimping portion 302 can be rotated to the side away from the signal switch 4 under the action of the rotating shaft device 6 and the torsion spring device 7, and then with the signal switch 4, otherwise, the pawl crimping portion 302 is always in a state of being pressed on the signal switch 4, and no signal jump will be performed.

[0049] The above-mentioned setting realizes precise control and signal feedback of the signal trigger rod 3 by respectively arranging the pawl connecting rod pushing mechanism 105 and the ratchet connecting rod pushing mechanism 205 on the pawl assembly 1 and the ratchet assembly 2, thereby avoiding the risk of false alarm of the full lock state, improving the reliability and safety of the system, and optimizing the structural design, improving the user experience and maintenance convenience.

[0050] As a preferred example of the present application, a limit device 8 is provided on the housing 5, and the limit device 8 is used to limit the position of the pawl crimping portion 302 on the signal trigger rod 3 when it rotates toward the side away from the signal switch 4 under the action of the torsion spring device 7. As an example of the present application, the limit device 8 is a boss structure provided on the housing 5, one side of the torsion spring device 7 is fixed to the limit device 8, and the other end is fixed to the pawl crimping portion 302, which is used to limit the rotation position of the pawl crimping portion 302 in the fully locked state, prevent the signal trigger rod 3 from causing signal feedback errors due to excessive or insufficient rotation, avoid damage to the signal switch 4 or other components, and improve the reliability and durability of the entire door lock signal trigger mechanism.

[0051] Through this structural design, the accuracy and stability of signal feedback are guaranteed, the design and installation process are simplified, the torsion spring device works more effectively, the system's anti-interference ability is enhanced, the performance and user experience of the car door lock signal trigger mechanism are effectively improved, and accurate and reliable signal feedback is ensured under various working conditions.

[0052] As a preferred example of the present application, the ratchet crimping portion 301 includes a rotating crimping portion 3011 and a first avoidance groove 3012. The rotating crimping portion 3011 is arranged in an arc shape, and the first avoidance groove 3012 is an avoidance portion recessed along the tangent direction of the rotating crimping portion 3011 toward the center of the arc. When the door lock is in a fully locked state, the ratchet connecting rod pushing mechanism 205 slides into the first avoidance groove 3012 and disengages from the signal trigger rod 3. The above-mentioned setting discloses a specific structure of a ratchet crimping part 301, including a rotating crimping part 3011 and a first avoidance groove 3012. The rotating crimping part 3011 is arranged in an arc shape, so that the ratchet link pushing mechanism 205 always maintains crimping contact with the rotating crimping part 3011 in a non-fully locked state, ensuring that the signal trigger rod 3 is crimped on the signal switch 4 in a non-fully locked state, ensuring the smooth movement of the signal trigger rod 3 during rotation, reducing friction and wear, and improving the durability and stability of the component. The first avoidance groove 3012, which is recessed along the tangent direction of the rotating crimping part 3011 toward the center of the arc, realizes the avoidance of the ratchet link pushing mechanism 205 when the ratchet component 2 moves to the fully locked state of the door lock, realizes the relative separation of the ratchet link pushing mechanism 205 and the signal trigger rod 3, prevents false triggering due to vibration or other interference in the fully locked state, improves the reliability and anti-interference ability of the system, and ensures accurate and reliable signal feedback.

[0053] As a preferred example of the present application, the ratchet crimping portion 302 includes a first mounting plate 3021 and a crimping boss 3022, the first mounting plate 3021 and the crimping boss 3022 are arranged in a step shape, the first mounting plate 3021 is used to install and fix the torsion spring device 7, the signal switch 4 and the ratchet connecting rod pushing mechanism 105 can respectively abut against the opposite sides of the crimping boss 3022 along the rotation direction of the ratchet crimping portion 302. The above-mentioned setting discloses a specific structure of a ratchet crimping portion 302, by designing a ratchet crimping portion 302 including a first mounting plate 3021 and a crimping boss 3022 arranged in a step shape, the first mounting plate 3021 is used to fix the torsion spring device 7, and provides a stable mounting base, ensuring that the torsion spring device 7 can stably apply force during operation, maintain the normal operation of the signal trigger rod 3, and avoid unstable operation caused by loosening or displacement of the torsion spring device 7; the crimping boss 3022 and the first mounting plate 3021 are arranged in a step shape, so that the ratchet connecting rod pushing mechanism 105 and the signal switch 4 can respectively abut against the opposite sides of the crimping boss 3022 along the rotation direction of the ratchet crimping portion 302, thereby making the force transmission path clearer and more concentrated, ensuring that the signal trigger rod 3 can accurately rotate and position when subjected to force, thereby improving the working accuracy of the signal trigger rod 3, further simplifying the overall design, and reducing the complexity of manufacturing and assembly. As an example of the present application, the ratchet crimping portion 302 is roughly rhombus-shaped, and a transition arc is provided at the connection between the abutting edges on both sides.

[0054] As a preferred example of the present application, the pawl assembly 1 further includes a pawl 101, a first torsion spring 102, a first pin 103 and a pawl link 104. The pawl 101 and the pawl link 104 are connected as a whole through the first torsion spring 102 and the first pin 103. The pawl link pushing mechanism 105 is integrally arranged on the pawl link 104 at the end close to the pawl crimping portion 302. This design integrates the pawl 101 and the pawl link 104 through the first torsion spring 102 and the first pin 103 to form a complete mechanism, thereby enhancing the overall rigidity and reliability of the assembly, reducing the number of independent components, and reducing the failure rate of the system. The pawl link pushing mechanism 105 is integrally arranged on the pawl link 104 to ensure that the pawl link pushing mechanism 105 can accurately act on the pawl crimping portion 302 of the signal trigger rod 3 when the pawl assembly 1 is in the working state, providing a clear crimping or disengagement action, and ensuring the accuracy of the signal feedback.

[0055] As a preferred example of the present application, the ratchet assembly 2 includes a ratchet 201, a second torsion spring 202, a second pin 203 and a ratchet link 204. The ratchet 201 and the ratchet link 204 are connected as a whole through the second torsion spring 202 and the second pin 203. The ratchet link pushing mechanism 205 is integrally arranged on the end of the ratchet link 204 close to the ratchet crimping portion 301. The design discloses a specific structure of a ratchet assembly 2, which improves the overall rigidity and reliability of the ratchet assembly 2. The modular integrated design reduces the number of independent components and the complexity of installation, making the system design more concise and efficient. The ratchet link pushing mechanism 205 is arranged on the side close to the signal switch 4, so that it can always apply force to the ratchet crimping portion 301 of the signal trigger rod 3 in a non-fully locked state, preventing the signal from being triggered by mistake, ensuring that it will only be disengaged in a fully locked state, and achieving accurate signal feedback.

[0056] The automobile door lock signal trigger mechanism disclosed in the present application mainly includes a ratchet assembly 2, a pawl assembly 1, a signal trigger rod 3 and a signal switch 4. The pawl assembly 1 includes a pawl connecting rod pushing mechanism 105, and the ratchet assembly 2 includes a ratchet connecting rod pushing mechanism 205. In the fully locked state, the signal trigger rod 3 is disengaged from the pawl connecting rod pushing mechanism 105 and the ratchet connecting rod pushing mechanism 205, and the signal trigger rod 3 is disengaged from the signal switch 4 under the action of the torsion spring device 7 and the limit device 8.

[0057] When the door lock is in the fully locked state, the ratchet connecting rod pushing mechanism 205 in the ratchet assembly 2 slides into the first avoidance groove 3012 in the signal trigger rod 3, the pawl connecting rod pushing mechanism 105 in the pawl assembly 1 rotates counterclockwise, and the signal trigger rod 3 rotates counterclockwise under the action of the torsion spring device 7 to disengage from the signal switch 4.

[0058] When the door lock is self-priming from the semi-locked state to the fully locked state, if the pawl connecting rod pushing mechanism 105 in the pawl assembly 1 does not move to the locked working position, the pawl connecting rod pushing mechanism 105 in the pawl assembly 1 is pressed on the signal trigger rod 3 and the pawl pressing part 302 of the signal trigger rod 3 is pressed on the signal switch 4, such as Figure 5 The structure shown.

[0059] The automobile door lock signal trigger mechanism described in the present application can accurately and reliably provide feedback on whether the automobile door lock is in a fully closed (fully locked) state: the ratchet assembly 2 will continue to push the signal trigger rod 3 to compress the signal switch 4 before full locking; only when the ratchet assembly 2 is in the fully locked position and the pawl assembly 1 is in a position to prevent the pawl from opening, the signal switch 4 will jump; otherwise, it has been pressed before (the ratchet assembly 2 is acting or the pawl assembly 1 is acting).

[0060] When the ratchet assembly 2 is in the open or semi-locked position, the ratchet crimping portion 301 of the signal trigger rod 3 can be pressed by the ratchet link pushing mechanism 205, thereby pressing the signal switch 4; in the process of the ratchet assembly 2 going from semi-locked to fully locked, the ratchet link pushing mechanism 205 no longer presses the signal trigger rod 3 after the ratchet 201 reaches the fully locked position.

[0061] Only when the pawl link pushing mechanism 105 is in the position to prevent the ratchet wheel 201 from opening, the signal switch 4 is not pressed and the signal jumps, that is, the feedback indicates that the vehicle door has been reliably closed.

[0062] The automobile door lock signal trigger mechanism disclosed in the present application optimizes the structure of the ratchet assembly 2, the pawl assembly 1 and the signal trigger rod 3. Through a set of signal switches, when the ratchet assembly 2 and the pawl assembly 1 move normally to the locked state, a locking signal is fed back to the entire vehicle structure. It can accurately and reliably feedback whether the automobile door is in a completely closed state. It has a compact structure and can determine the full lock state signal in a relatively small stroke. It has high accuracy, improves the stability, reliability and user experience of the system, and provides effective protection for the safety and comfort of the vehicle.

[0063] like Figures 1 to 9 As shown, the utility model discloses a car door lock, including a base 501, an upper cover 503 and a side cover 502, wherein the upper cover 503 is detachably connected to the base 501 and the side cover 502, and a space for installing the car door lock signal trigger mechanism as described in Example 1 is formed between the upper cover 503 and the base 501 and the side cover 502.

[0064] In the example of the present application, an electric motor and an electric gear are arranged between the side cover and the upper cover. The electric motor and the electric gear are arranged in an inclined state between the side cover and the upper cover. A self-priming motor and a self-priming gear transmission assembly are arranged between the upper cover and the base. The axis of the output shaft of the self-priming motor is arranged parallel to the plane where the length direction of the side cover is located.

[0065] In an example of the present application, the self-priming gear transmission assembly includes two transmission gears, one of which is a duplex gear.

[0066] The automobile door lock disclosed in the present application is an improvement on the existing suction door lock, and the suction motor is integrated inside the door lock. The automobile door lock also has an electric release function, a compact structure, and reduced component settings.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A car door lock signal triggering mechanism, characterized in that: include: A pawl assembly (1), a ratchet assembly (2) and a driving device (9) are installed in the housing (5), wherein the pawl assembly (1) and the ratchet assembly (2) form a fully locked state, a half-locked state and a fully opened state of the door lock under the action of the driving device (9); A signal switch (4) is fixedly mounted on the housing (5) and connected to the vehicle body controller; A signal trigger rod (3), wherein the signal trigger rod (3) is disengaged from the signal switch (4) only when the door lock is in a fully locked state under the action of a rotating shaft device (6), a torsion spring device (7), a pawl assembly (1) and a ratchet assembly (2), and the signal switch (4) performs a signal jump, wherein the torsion spring device (7) is arranged on an end of the signal trigger rod (3) close to the signal switch (4) and causes the end to rotate along the rotating shaft device (6) toward a side away from the signal switch (4).

2. The automobile door lock signal triggering mechanism according to claim 1, characterized in that: The signal trigger rod (3) comprises a ratchet crimping portion (301), a pawl crimping portion (302) and a first pin shaft hole (303); the first pin shaft hole (303) is sleeved on the rotating shaft device (6); the ratchet crimping portion (301) and the pawl crimping portion (302) are arranged on opposite sides of the first pin shaft hole (303); the ratchet crimping portion (301) is used for crimping and limiting the ratchet assembly (2) when the work position is changed; the pawl crimping portion (302) is used for crimping and limiting the ratchet assembly (1) when the work position is changed; in the fully locked state, the ratchet crimping portion (301) and the pawl crimping portion (302) are relatively disengaged from the ratchet assembly (2) and the pawl assembly (1) and cause the signal trigger rod (3) to rotate in a direction away from the signal switch (4); the signal jump of the signal switch (4) is accurately fed back to the whole vehicle door in a safe closed state.

3. The automobile door lock signal triggering mechanism according to claim 2, characterized in that: The pawl assembly (1) comprises a pawl connecting rod pushing mechanism (105), and the ratchet assembly (2) comprises a ratchet connecting rod pushing mechanism (205). In a non-fully locked state, the pawl connecting rod pushing mechanism (105) always acts on the pawl crimping portion (302) and crimps the pawl crimping portion to the signal switch (4). In a non-fully locked state, the ratchet connecting rod pushing mechanism (205) always acts on the ratchet crimping portion (301) and drives the pawl crimping portion (302) to be crimped to the signal switch (4).

4. The automobile door lock signal triggering mechanism according to claim 3, characterized in that: A limiting device (8) is provided on the housing (5), and the limiting device (8) is used to limit the position of the ratchet crimping portion (302) on the signal trigger rod (3) when it rotates toward a side away from the signal switch (4) under the action of the torsion spring device (7).

5. The automobile door lock signal triggering mechanism according to claim 4, characterized in that: The ratchet crimping portion (301) comprises a rotating crimping portion (3011) and a first avoidance groove (3012); the rotating crimping portion (3011) is arranged in an arc shape; and the first avoidance groove (3012) is an avoidance portion that is recessed along a tangent direction of the rotating crimping portion (3011) toward the center of the arc.

6. The automobile door lock signal triggering mechanism according to claim 5, characterized in that: The ratchet crimping portion (302) comprises a first mounting plate (3021) and a crimping boss (3022); the first mounting plate (3021) and the crimping boss (3022) are arranged in a step-like manner; the first mounting plate (3021) is used to mount and fix the torsion spring device (7); the signal switch (4) and the ratchet connecting rod pushing mechanism (105) can respectively abut against opposite sides of the crimping boss (3022) along the rotation direction of the ratchet crimping portion (302).

7. The automobile door lock signal triggering mechanism according to claim 6, characterized in that: The door lock is in a fully locked state, the ratchet link pushing mechanism (205) in the ratchet assembly (2) slides into the first avoidance groove (3012) in the signal trigger rod (3), the ratchet link pushing mechanism (105) in the ratchet assembly (1) rotates counterclockwise, and the signal trigger rod (3) rotates counterclockwise under the action of the torsion spring device (7) to disengage from the signal switch (4).

8. The automobile door lock signal triggering mechanism according to claim 3, characterized in that: The pawl assembly (1) further comprises a pawl (101), a first torsion spring (102), a first pin shaft (103) and a pawl connecting rod (104); the pawl (101) and the pawl connecting rod (104) are integrally connected via the first torsion spring (102) and the first pin shaft (103); and the pawl connecting rod pushing mechanism (105) is integrally arranged on the pawl connecting rod (104) at an end close to the pawl crimping portion (302).

9. The automobile door lock signal triggering mechanism according to claim 3, characterized in that: The ratchet assembly (2) comprises a ratchet (201), a second torsion spring (202), a second pin (203) and a ratchet connecting rod (204); the ratchet (201) and the ratchet connecting rod (204) are connected as a whole via the second torsion spring (202) and the second pin (203); and the ratchet connecting rod pushing mechanism (205) is integrally arranged on an end portion of the ratchet connecting rod (204) close to the ratchet crimping portion (301).

10. The automobile door lock signal triggering mechanism according to any one of claims 1 to 9, characterized in that: The invention is applied to a self-closing automobile door lock, the automobile door lock comprises a base (501), an upper cover (503) and a side cover (502), wherein the upper cover (503) is detachably connected with the base (501) and the side cover (502) to form a housing (5).

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