Safety belt mortise lock

Abstract

The utility model relates to a safety belt mortise lock which comprises a shell and a light-emitting device, the shell defines an insertion opening, the light-emitting device comprises a light-emitting assembly, a light guide body and a diffuser, the light-emitting assembly is used for emitting light, a first part of the light guide body is adjacent to the light-emitting assembly, and a second part of the light guide body is adjacent to the diffuser. The second part of the light guide body extends to the insertion opening area, the diffuser is adjacent to the second part of the light guide body, the light guide body is used for guiding the light to the diffuser, and the diffuser is used for diffusing the light. According to the safety belt mortise lock, the light mark can be formed in the insertion opening area of the shell through the light-emitting device so as to indicate the position of the insertion opening, a passenger can quickly find the insertion opening and insert a spring bolt of a safety belt, and therefore the safety belt wearing convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile passive safety devices, and more specifically to a safety belt latch. Background Art

[0002] The seat belt latch is one of the safety devices of the car. It is fixed to the car body and is used for inserting the seat belt's lock tongue and locking the lock tongue in an unlockable manner. When the seat belt latch locks the lock tongue, the seat belt surrounds the occupant, thereby fixing the occupant in the seat during emergency braking, preventing the occupant from colliding with hard objects on the car and ensuring the safety of the occupant.

[0003] However, the insertion port of the existing seat belt latch has no eye-catching mark. When the occupant needs to insert the lock tongue into the seat belt latch, especially in dimly lit scenes (such as at night, in a basement, etc.), it is difficult for the occupant to find the insertion port, which makes it very difficult and time-consuming for the occupant to wear the seat belt. Utility Model Content

[0004] The utility model aims to provide a seat belt latch, which forms a light mark at an insertion port through a light emitting device to indicate the position of the insertion port through the light mark, so that an occupant can quickly find the insertion port and wear the seat belt very conveniently.

[0005] Based on the above purpose, the utility model provides a seat belt latch, comprising a shell and a light-emitting device, the shell defining an insertion opening, the light-emitting device comprising a light-emitting component, a light guide and a diffuser, the light-emitting component being used to emit light, the first portion of the light guide being adjacent to the light-emitting component, the second portion of the light guide extending to the insertion opening area, the diffuser being adjacent to the second portion of the light guide, the light guide being used to guide the light to the diffuser, and the diffuser being used to diffuse the light.

[0006] Further, the light diffused by the diffuser is formed into a light mark for indicating the position of the insertion opening.

[0007] Further, the housing includes a first housing and a second housing that are detachably connected, the first housing has a protrusion, and the insertion opening is defined by the protrusion.

[0008] Further, a first cavity is formed between the first shell and the second shell, the insertion opening is communicated with the first cavity, the light emitting component is located in the first cavity, and the first part of the light guide extends into the first cavity.

[0009] Furthermore, the light-emitting component includes a circuit board and a light source, the circuit board is provided with a light-emitting circuit, the light source is fixed on the circuit board and connected to the light-emitting circuit, one end of the first part of the light guide is adjacent to the light source, and the circuit board is fixed to the shell.

[0010] Furthermore, a first accommodating groove is provided on the protruding portion, and the second part of the light guide is at least partially fixed in the first accommodating groove.

[0011] Furthermore, the diffuser is located at the front end surface of the protrusion, and the second portion of the light guide is located at an inner side of the protrusion than the diffuser.

[0012] Furthermore, a gap is provided between the diffuser and the second portion of the light guide; and the diffuser is in a strip shape.

[0013] Furthermore, an extension length of the second portion of the light guide perpendicular to the light emitting direction is greater than or equal to an extension length of the diffuser perpendicular to the light emitting direction.

[0014] Furthermore, it also includes a decorative cover, which covers the side surface of the protrusion and is made of an opaque material.

[0015] Further, the protrusion is provided with a second receiving groove matching the shape of the diffuser, and the diffuser is fixed in the second receiving groove; or

[0016] The diffuser and the first shell are integrally formed.

[0017] The seat belt latch of the utility model can form a light mark in the insertion opening area of ​​the shell through the light emitting device to indicate the position of the insertion opening, so that the occupant can quickly find the insertion opening and insert the lock tongue of the seat belt, thereby improving the convenience of wearing the seat belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a safety belt latch according to the first embodiment of the utility model. In order to show the structure inside the housing, a part of the housing is removed in the figure;

[0019] Figure 2 It is a structural schematic diagram of the safety belt latch after the mechanical device is removed according to the first embodiment of the utility model;

[0020] Figure 3 for Figure 2 Exploded diagram of

[0021] Figure 4 is an exploded view of a seat belt latch according to a second embodiment of the present utility model, wherein a portion of the housing is removed;

[0022] Figure 5 It is a schematic structural diagram of a seat belt latch after removing the mechanical device according to the third embodiment of the utility model. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present utility model are given below in conjunction with the accompanying drawings and described in detail.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the first embodiment of the utility model provides a seat belt latch, including a housing 100, a mechanical device 200 is arranged in the housing 100, the housing 100 defines an insertion opening 110, the lock tongue of the seat belt (not shown in the figure) can be inserted into the housing 100 from the insertion opening 110, and then the mechanical device 200 can lock it, so that it is fixed on the seat belt latch; the mechanical device 200 includes a button 210 for unlocking, when the button 210 is pressed, the mechanical device 200 will disengage the lock tongue, so that the lock tongue is disconnected from the mechanical device 200, and then the lock tongue can leave the seat belt latch from the insertion opening 110, so as to unfasten the seat belt. Since the mechanical device 200 is a conventional device used in the seat belt latch, its specific structure and working principle are well known in the art and will not be repeated here.

[0025] The seat belt latch also includes a light emitting device 300, which forms a light mark in the area of ​​the insertion opening 110. The light mark is used to indicate the position of the insertion opening 110 so that the occupant can quickly find the insertion opening 110 and insert the lock tongue of the seat belt into the insertion opening 110, thereby conveniently realizing the wearing of the seat belt.

[0026] The light-emitting device 300 may include a light-emitting component 310, a light guide 320 and a diffuser 330. The light-emitting component 310 is used to emit light. The first portion 321 of the light guide 320 is adjacent to the light-emitting component 310, and the second portion 322 of the light guide 320 extends to the insertion opening 110 area to guide the light to the insertion opening 110 area. The diffuser 330 is adjacent to the portion of the light guide 320 extending to the insertion opening 110 area (i.e., the second portion 322), and is used to diffuse the light transmitted from the light guide 320 and form a uniform light mark, so that the light mark is easy to be seen by the occupants.

[0027] The housing 100 may include a first housing 120 and a second housing 130, which are detachably fixed together, the first housing 120 having a protrusion 121, the protrusion 121 being located at the front end of the first housing 120, the insertion opening 110 being defined by the protrusion 121, and the light guide 320 and the diffuser 330 being fixed to the protrusion 121. The tail ends of the first housing 120 and the second housing 130 are formed as the tail end of the housing 100, the front end of the first housing 120 is formed as the front end of the housing 100, the tail end of the housing 100 is fixed to the vehicle body, and the front end of the housing 100 is a free end, the housing 100 can rotate relative to the fixing point between the housing 100 and the vehicle body, so as to adapt to the position of the lock tongue of the safety belt, so that the lock tongue can be more conveniently inserted into the insertion opening 110 at the front end of the housing 100.

[0028] A first cavity 140 is formed between the first shell 120 and the second shell 130, and the protrusion 121 defines the second cavity 122. The first cavity 140 and the second cavity 122 are connected to each other. The mechanical device 200 is located in the first cavity 140, and its button 210 extends into the second cavity 122. An insertion opening 110 is formed between the button 210 and the first shell 120; that is, the button 210 will occupy a part of the second cavity 122, and the insertion opening 110 is the rest of the second cavity 122.

[0029] The light-emitting component 310 is located in the first cavity 140, and a first receiving groove 123 may be provided on the protrusion 121. The second portion 322 of the light guide 320 is installed in the first receiving groove 123, and the first portion 321 of the light guide 320 extends into the first cavity 140 and is adjacent to the light-emitting component 310. The light emitted by the light-emitting component 310 is incident from the first portion 321 of the light guide 320, and then the light is transmitted from the first portion 321 to the second portion 322 and emitted from the second portion 322. The light emitted from the second portion 322 enters the diffuser 330, and after being diffused by the diffuser 330, uniform light is emitted, which is a light mark.

[0030] The diffuser 330 can be located on the front end surface of the protrusion 121 (i.e., the surface farthest from the tail end), and the second portion 322 of the light guide 320 is located on the inner side of the protrusion 121 (i.e., closer to the tail end) compared to the diffuser 330, so that the light emitted from the light guide 320 can be transmitted to the diffuser 330 and emitted from the diffuser 330.

[0031] There is a gap between the diffuser 330 and the second portion 322 of the light guide 320 , so that after the light is emitted from the second portion 322 , it propagates in the air first and then enters the diffuser 330 , thereby obtaining a better light emission effect.

[0032] The extension length of the second portion 322 of the light guide 320 perpendicular to the light emitting direction is greater than or equal to the extension length of the diffuser 330 perpendicular to the light emitting direction, thereby obtaining a better light emitting effect.

[0033] The diffuser 330 may be in a strip shape, thereby forming a strip-shaped light mark. The diffuser 330 may be in a strip shape, and the diffuser 330 may be shorter. Accordingly, the light guide 320 may also be shorter, thereby reducing manufacturing costs and making the seat belt latch easier to assemble.

[0034] The light guide 320 and the diffuser 330 are both made of light-transmitting materials, for example, both can be made of transparent PC (polycarbonate) material.

[0035] The protrusion 121 may be provided with a second receiving groove 124, the shapes of which match those of the diffuser 330, and the diffuser 330 may be inserted into the second receiving groove 124 so that the diffuser 330 is fixed on the protrusion 121. The diffuser 330 may be provided with at least one (for example, two) protrusions 331, and correspondingly, the second receiving groove 124 also includes a groove of the same shape, so that the diffuser 330 can be more firmly stuck in the second receiving groove 124 to prevent the diffuser 330 from falling off the protrusion 121.

[0036] The light emitting assembly 310 may include a circuit board 311 and a light source 312. The circuit board 311 is provided with a light emitting circuit. The light source 312 is fixed on the circuit board 311 and connected to the light emitting circuit. The light emitting circuit is used to realize the light emission control of the light source 312, for example, to control the light source 312 to turn on or off, and / or to control the light source 312 to emit light of a desired color. The light source 312 is adjacent to the first portion 321 of the light guide 320 so that the light emitted by the light source 312 can be projected into the first portion 321 of the light guide 320.

[0037] The circuit board 311 can be welded, clamped or fixed to the first shell 120 and / or the second shell 130 by any other suitable means. For example, both the first shell 120 and the second shell 130 can be provided with a clamping slot, and the circuit board 311 can be clamped into the clamping slot of the first shell 120 and the second shell 130, thereby clamping with the first shell 120 and the second shell 130.

[0038] There may be a gap between the light source 312 and the first portion 321 of the light guide 320 to obtain a better light emission effect.

[0039] The lighting circuit may be connected to an electronic controller (ECU) so that the lighting assembly 310 can be controlled by the ECU.

[0040] The light source 312 may include one or more LED lamps, each of which may emit light of the same color or different colors.

[0041] In an exemplary embodiment, when the locking tongue of the seat belt is not inserted, the light emitting assembly 310 may emit light of a first color (e.g., red) to form a light mark of the first color, and the occupant may easily find the insertion opening 110 through the light mark. When the locking tongue of the seat belt is inserted, an insertion signal may be sent to the ECU through a sensor pre-set on the mechanical device, and then the ECU controls the light emitting assembly 310 to turn off or emit light of a second color (e.g., green) to turn off the light mark or form a light mark of the second color.

[0042] like Figure 4 As shown, the second embodiment of the utility model provides a seat belt latch, which, based on the seat belt latch of the first embodiment, further includes a decorative cover 400, the decorative cover 400 is fixedly connected to the first shell 120, and covers the side of the protrusion 121, the decorative cover 400, the first shell 120 and the second shell 130 are all made of opaque material, so that the light from the side is blocked by the decorative cover 400, the first shell 120 and the second shell 130, so that the light can only be emitted from the diffuser 330; on the other hand, the decorative cover 400 can also play a role in beautifying the appearance.

[0043] The decorative cover 400 may be fixedly connected to the first housing 120 by snapping, welding or any other suitable method. For example, the decorative cover 400 may be provided with at least one buckle 410, and the first housing 120 may be provided with at least one slot 125, and the buckle 410 is inserted into the slot 125, so that the decorative cover 400 is fixedly connected to the first housing 120.

[0044] like Figure 5 As shown, the third embodiment of the utility model provides a safety belt latch, which is different from the safety belt latches of the first and second embodiments only in that the diffuser 330 of this embodiment is integrally formed with the first shell 120 (for example, it can be integrally formed by two-color injection molding), while the diffuser 330 and the first shell 120 of the first and second embodiments are two independent components. Since the diffuser 330 is integrally formed with the first shell 120, the safety belt latch is easier to assemble.

[0045] The seat belt latch of the embodiment of the utility model can form a light mark in the insertion opening 110 area of ​​the shell 100 through the light emitting device 300 to indicate the position of the insertion opening 110, so that the occupant can quickly find the insertion opening 110 and insert the locking tongue of the seat belt, thereby improving the convenience of wearing the seat belt.

[0046] It should be noted that the utility model (e.g., utility model concepts, etc.) has been described in the specification of this patent document and / or illustrated in the drawings according to exemplary embodiments; the embodiments of the utility model are presented only by way of example and are not intended to limit the scope of the utility model. The structure and / or arrangement of the elements of the utility model concepts embodied in the utility model as described in the specification and / or illustrated in the drawings are merely illustrative. Although exemplary embodiments of the utility model have been described in detail in this patent document, it is easy for a person of ordinary skill in the art to understand that equivalents, modifications, variations, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the utility model; all of these subject matters (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the utility model. It should also be noted that various / other modifications, changes, substitutions, equivalents, changes, omissions, etc. can be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concepts, designs, structures, devices, forms, assemblies, constructions, means, functions, systems, processes / methods, steps, the order of process / method steps, operations, operating conditions, performances, materials, compositions, combinations, etc.) without departing from the scope of the present invention; all of these subjects (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter described in the specification and / or drawings of this patent document (e.g., details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.). Considering that the claims of this patent document will be appropriately interpreted as covering the full scope of the subject matter of the present invention (e.g., including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments, rather than as a limitation on the scope of the present invention.

[0047] It should also be noted that, according to the exemplary embodiments, the present invention may include conventional technologies (such as technologies implemented and / or integrated in the exemplary embodiments, modifications, changes, combinations, equivalents), or may include any other applicable technologies (now and / or in the future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All of these technologies (such as technologies implemented in embodiments, modifications, changes, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. A seat belt latch, characterized in that: The invention comprises a shell and a light emitting device, wherein the shell defines an insertion opening, the light emitting device comprises a light emitting component, a light guide and a diffuser, the light emitting component is used to emit light, a first portion of the light guide is adjacent to the light emitting component, a second portion of the light guide extends to the insertion opening area, the diffuser is adjacent to the second portion of the light guide, the light guide is used to guide the light to the diffuser, and the diffuser is used to diffuse the light.

2. The seat belt latch according to claim 1, characterized in that: The light diffused by the diffuser is formed into a light mark for indicating the position of the insertion opening.

3. The seat belt latch according to claim 1, characterized in that: The housing includes a first housing and a second housing that are detachably connected, the first housing having a protrusion, and the insertion opening is defined by the protrusion.

4. The seat belt latch according to claim 3, characterized in that: A first cavity is formed between the first shell and the second shell, the insertion opening is communicated with the first cavity, the light emitting component is located in the first cavity, and the first part of the light guide extends into the first cavity.

5. The seat belt latch according to claim 4, characterized in that: The light-emitting component includes a circuit board and a light source. The circuit board is provided with a light-emitting circuit. The light source is fixed on the circuit board and connected to the light-emitting circuit. One end of the first part of the light guide is adjacent to the light source. The circuit board is fixed to the housing.

6. The seat belt latch according to claim 4, characterized in that: The protruding portion is provided with a first accommodating groove, and the second portion of the light guide is at least partially fixed in the first accommodating groove.

7. The seat belt latch according to claim 3, characterized in that: The diffuser is located on the front end surface of the protrusion, and the second portion of the light guide is located on the inner side of the protrusion compared to the diffuser.

8. The seat belt latch according to claim 7, characterized in that: A gap is provided between the diffuser and the second portion of the light guide; and the diffuser is in a strip shape.

9. The seat belt latch according to claim 7, characterized in that: An extension length of the second portion of the light guide perpendicular to the light emitting direction is greater than or equal to an extension length of the diffuser perpendicular to the light emitting direction.

10. The seat belt latch according to claim 3, characterized in that: It also includes a decorative cover, which covers the side surface of the protrusion and is made of an opaque material.

11. The seat belt latch according to claim 3, characterized in that: The protrusion is provided with a second receiving groove matching the shape of the diffuser, and the diffuser is fixed in the second receiving groove; or The diffuser and the first shell are integrally formed.

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