Mortise lock switch detection device

Abstract

The utility model discloses a mortise lock switch detection device which comprises a base, the base is provided with a channel used for insertion of a safety belt spring bolt, the base is internally connected with a sliding block through an elastic piece, the base is internally provided with a movable reed and a static reed, the movable reed and the static reed are arranged at intervals, the spring bolt is inserted and pushed to push the sliding block to move downwards, and the sliding block is connected with the channel. And the spring bolt retreats from the channel, and the elastic piece pushes the sliding block to move upwards, so that the movable reed and the static reed are separated and disconnected. According to the mortise lock switch detection device, the safety belt is linked with the sliding block, and the boss of the sliding block pushes the movable reed to be in contact with the static reed, so that on-off of a circuit is realized to detect whether the safety belt is inserted or not.

Description

Technical Field

[0001] The utility model relates to the field of latch switches, in particular to a latch switch detection device. Background Art

[0002] Seat belt assemblies are widely equipped in vehicles as safety protection devices for vehicle occupants. The seat belt assembly may include a webbing, a seat belt tongue connected to the webbing, and a seat belt lock installed in the vehicle and matched with the seat belt tongue. When the seat belt tongue is inserted into the receptacle of the seat belt lock, the webbing may restrain the vehicle occupant sitting on the vehicle seat. In some cases, the vehicle occupant may intentionally or unintentionally neglect to wear the seat belt assembly, and thus may cause safety risks.

[0003] Seat belts are usually connected and locked using a latch switch. With the development of technology and the improvement of safety awareness, people are increasingly monitoring the plug-in and plug-out status of the latch switch on the seat belt. The existing latch switch uses a complex circuit structure for detection. Once the wires or electrical components of the circuit are damaged, it will not work properly. Utility Model Content

[0004] The utility model mainly solves the technical problem of providing a latch switch detection device, which is linked with a slide block by a safety belt, and a boss of the slide block pushes a moving spring sheet and a static spring sheet to contact, thereby realizing circuit switching to detect whether the safety belt is inserted.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a latch switch detection device, including a base, a channel for inserting a seat belt lock tongue is provided on the base, a slider is connected to the base through an elastic member, a dynamic spring and a static spring are provided in the base, the dynamic spring and the static spring are arranged at intervals, the lock tongue is inserted and pushed to push the slider downward, so that the slider pushes the dynamic spring to contact and conduct with the static spring, the lock tongue exits the channel, and the elastic member pushes the slider upward to separate and disconnect the dynamic spring and the static spring.

[0006] In a preferred embodiment of the present invention, the upper ends of the movable reed and the static reed have corresponding contact points, and the movable reed is close to the static reed so that the contact points of the two are in contact.

[0007] In a preferred embodiment of the present invention, a push slope is provided below the contact point of the movable spring piece, and the slider moves downward along the push slope to push the movable spring piece to fold.

[0008] In a preferred embodiment of the utility model, the slider has a boss in contact with the push inclined surface, and the boss moves downward and presses down the push inclined surface to push the movable spring to fold.

[0009] In a preferred embodiment of the present invention, the lower section of the pushing inclined surface is an L-shaped bending portion, and the L-shaped bending portion is embedded in the base, so that the boss pushes the pushing inclined surface to fold relative to the L-shaped bending portion.

[0010] In a preferred embodiment of the utility model, the lower end of the static spring sheet is an inclined bending portion, and the inclined bending portion and the L-shaped bending portion are embedded in the base through the protrusions thereon.

[0011] In a preferred embodiment of the present invention, the base includes an inner guide post, and the elastic member is sleeved on the guide post.

[0012] The beneficial effects of the utility model are as follows: the lock switch detection device of the utility model, the safety belt lock tongue triggers the movement of the slider, the boss on the slider moves downward to push the moving spring to fold, the overall structure is simple, and the trigger position is accurate.

[0013] The utility model of the latch switch detection device ensures stable rotation of the movable spring piece through the cooperation and guidance of the convex block and the inclined surface, ensures accurate contact between the contact points of the two, and ensures the trigger sensitivity.

[0014] The utility model provides a latch switch detection device, in which a slide block is reset by a spring, the slide block moves vertically, the overall structure is more simplified, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a structural schematic diagram of the utility model of the latch switch detection device;

[0017] Figure 2 It is a schematic diagram of the latch switch detection device in an open circuit state;

[0018] Figure 3 It is a schematic diagram of the latch switch detection device in a closed circuit state;

[0019] The components in the accompanying drawings are marked as follows: 1. base, 11. channel, 2. slider, 21. boss, 3. guide column, 4. elastic member, 5. moving spring, 51. contact, 52. L-shaped bending portion, 53. pushing ramp, 6. static spring, 61. inclined bending portion. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiment of the utility model will be described clearly and completely below. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions that can be implemented in the utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that can be produced by the utility model and the purpose that can be achieved, should still fall within the scope of the technical content disclosed in the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of narration, and are not used to limit the scope that can be implemented. The change or adjustment of its relative relationship should also be regarded as the scope that can be implemented in the utility model without substantially changing the technical content.

[0021] See also Figures 1 to 3 A latch switch detection device includes a base 1, a channel 11 for inserting a seat belt lock tongue is provided on the base 1, and a slider 2 is connected to the base 1 through an elastic member 4. A guide column 3 is provided in the base 1, and the elastic member 4 is sleeved on the guide column 3. The elastic member 4 can be a spring. When the seat belt lock tongue is inserted into the channel 11, the slider 2 is pushed downward, the seat belt is locked out of the channel 11, and the spring pushes the slider 2 to reset. The slider 2 is guided in the vertical direction by the inner wall of the base 1 to ensure that the slider 2 has an accurate up and down travel, which will not be repeated here.

[0022] A movable spring 5 and a static spring 6 are arranged in the base 1, and the movable spring 5 and the static spring 6 are arranged at intervals. The upper ends of the movable spring 5 and the static spring 6 have corresponding contacts 51, and the movable spring 5 is close to the static spring 6 so that the contacts 51 of the two are in contact. When the contacts 51 of the movable spring 5 and the static spring 6 are in contact, the circuit is turned on, and the driving computer determines that the seat belt is in the inserted state. When the contacts 51 of the movable spring 5 and the static spring 6 are separated, the circuit is open, and the driving computer determines that the seat belt is not inserted.

[0023] The lock tongue is inserted and pushed to push the slider 2 downward, so that the slider 2 pushes the movable spring 5 to contact and conduct with the static spring 6, the lock tongue exits the channel 11, and the elastic member 4 pushes the slider 2 upward to separate and disconnect the movable spring 5 from the static spring 6. There is a push slope 53 below the contact 51 of the movable spring 5, and the slider 2 moves downward along the push slope 53 to push the movable spring 5 to fold. The slider 2 has a boss 21 in contact with the push slope 53, and the boss 21 moves downward and presses the push slope 53 to push the movable spring 5 to fold. After the lock tongue is inserted, when the slider 2 moves downward, the boss 21 moves downward synchronously, and the boss 21 moves downward and squeezes the push slope 53 at the same time, and the push slope 53 bends to the right until the contact of the movable spring 5 contacts the contact 51 of the static spring 6, and the circuit is turned on. After the lock tongue is withdrawn, under the action of the elastic force of the elastic member 4, the slider 2 returns to its original position and moves upward, and the boss 21 moves upward synchronously. The boss 21 no longer generates thrust on the push ramp 53, and the push ramp 53 returns to its original position by its own elastic force. At this time, the contacts 51 of the moving spring piece 5 and the static spring piece 6 are separated, and the circuit is open.

[0024] The lower section of the push slope 53 is an L-shaped bending portion 52, and the lower end of the static spring piece 6 is an inclined bending portion 61. The inclined bending portion 61 and the L-shaped bending portion 52 are embedded in the base 1 through the protrusions thereon. The lower ends of the dynamic spring piece 5 and the static spring piece 6 are both embedded and fastened in the base 1 to ensure the stability of the connection structure.

[0025] Since the L-shaped bending portion 52 is embedded in the base 1 and the pushing inclined surface 53 is not fixed, the boss 21 can push the pushing inclined surface 53 to bend relative to the L-shaped bending portion 52. When the boss 21 is separated from the pushing inclined surface, the pushing inclined surface 53 returns to its original position by elastic force.

[0026] Different from the prior art, the latch switch detection device of the utility model is linked with the slider through the safety belt, and the boss of the slider pushes the moving spring and the static spring to contact, thereby realizing the circuit on and off to detect whether the safety belt is inserted.

[0027] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A latch switch detection device, comprising a base, wherein the base is provided with a channel for inserting a safety belt lock tongue, characterized in that: A slider is connected to the base through an elastic member, a dynamic spring and a static spring are embedded in the base, the dynamic spring and the static spring are spaced apart, the lock tongue is inserted and pushed to push the slider downward, so that the slider pushes the dynamic spring to contact and conduct with the static spring, the lock tongue exits the channel, and the elastic member pushes the slider upward to separate and disconnect the dynamic spring from the static spring.

2. The latch switch detection device according to claim 1, characterized in that: The upper ends of the movable spring piece and the static spring piece have corresponding contact points, and the movable spring piece is close to the static spring piece so that the contact points of the two pieces are in contact.

3. The latch switch detection device according to claim 2, characterized in that: A push slope is provided below the contact point of the movable spring piece, and the slider moves downward along the push slope to push the movable spring piece to fold.

4. The latch switch detection device according to claim 3, characterized in that: The slider is provided with a boss in contact with the push inclined surface, and the boss moves downward and presses the push inclined surface downward to push the movable spring to fold.

5. The latch switch detection device according to claim 4, characterized in that: The lower section of the pushing inclined surface is an L-shaped bending portion, and the L-shaped bending portion is embedded in the base, so that the boss pushes the pushing inclined surface to fold relative to the L-shaped bending portion.

6. The mortise lock switch detection device according to claim 5, characterized in that: The lower end of the static spring sheet is an inclined bending portion, and the inclined bending portion and the L-shaped bending portion are embedded on the base through the protrusions thereon.

7. The latch switch detection device according to any one of claims 1 to 6, characterized in that: The base has an inner guide post, and the elastic member is sleeved on the guide post.

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