CN216034244U - Hasp, safety belt subassembly and vehicle - Google Patents

Abstract

The utility model provides a buckle, a seat belt assembly and a vehicle, wherein the buckle comprises: a lock catch body; the illuminating lamp is arranged on the outer surface of the lock catch body; the detection component is arranged in a passenger compartment of the vehicle and is used for detecting the light value of a preset position in the passenger compartment; the switch piece is electrically connected with the output end of the detection assembly, arranged in the power supply circuit of the illuminating lamp and used for switching on the power supply circuit of the illuminating lamp when the light value is lower than a preset value, so that the illuminating lamp emits light. The safety belt assembly comprises a safety belt, a bolt and a buckle as described above. The vehicle comprises a vehicle body and the lock catch. The lock catch, the safety belt component and the vehicle have the advantages that when a passenger compartment is dark, a passenger can quickly find the lock catch and insert the lock tongue into the lock catch.

Description

Hasp, safety belt subassembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a lock catch, a safety belt assembly and a vehicle.

Background

A seat belt is a safety device for protecting a driver or a passenger. Which can prevent a passenger from colliding with a structural member or a garnish of a passenger compartment in the event of an accident.

The safety belt, the bolt and the lock catch in the related art are matched for use. One end of the safety belt is accommodated in a retractor in the center of a B column of the vehicle, and the other end of the safety belt is provided with a lock tongue. When the seat belt retractor is used, the safety belt can be drawn out of the retractor, and the lock tongue is inserted into a lock catch arranged on the side of the seat. Thus, the seatbelt enables the upper body of the occupant to be restrained between the seatbelt and the seatback to prevent the occupant from coming out of the seat.

However, when the light in the passenger compartment is insufficient, the passenger cannot easily find the position of the lock catch after getting on the vehicle, which causes the inconvenience in wearing the safety belt.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a lock catch, a safety belt component and a vehicle, which are used for solving the problem that when light is insufficient, a passenger cannot easily find the position of the lock catch after getting on the vehicle, and the safety belt is inconvenient to wear and operate.

In order to achieve the purpose, the utility model provides the following technical scheme:

one aspect of an embodiment of the present invention provides a latch, including: a lock catch body; the illuminating lamp is arranged on the outer surface of the lock catch body; the detection component is arranged in a passenger compartment of the vehicle and is used for detecting the light value of a preset position in the passenger compartment;

the switch piece is electrically connected with the output end of the detection assembly, arranged in the power supply circuit of the illuminating lamp and used for switching on the power supply circuit of the illuminating lamp when the light value is lower than a preset value, so that the illuminating lamp emits light.

In one possible implementation manner, the detection component includes a photoresistor and a voltage dividing resistor connected in series in the power supply circuit, and a connection node between the photoresistor and the voltage dividing resistor is electrically connected with the switching element.

In one possible implementation manner, the detection component is connected in parallel to two ends of the illuminating lamp.

In one possible implementation manner, the switching element is a triode, and the photoresistor is connected between the base electrode and the emitter electrode of the switching element.

In one possible implementation manner, the lock catch bodies are multiple, the illuminating lamps are multiple, and each lock catch body is provided with one illuminating lamp; the number of the detection assemblies is multiple, and each detection assembly is used for detecting the light value of one lock catch body;

the switch spare is a plurality of, every switch spare all with one detection component's output electricity is connected, every the switch spare all sets up one in the supply circuit of light.

In one possible implementation manner, the detection component is arranged on the upper surface of the lock catch body; and/or the switch piece is arranged inside the lock catch body.

In one possible implementation manner, the lock catch bodies are multiple, the illuminating lamps are multiple, and each lock catch body is provided with one illuminating lamp; the number of the detection assemblies is one, and the number of the switch pieces is one;

the lighting lamps are connected in parallel in a power supply circuit where the switch piece is located, and the switch piece is used for conducting the power supply circuit when the light value is lower than a preset value, so that all the lighting lamps synchronously emit light.

In one possible implementation manner, the illumination lamp includes a lamp strip, and the lamp strip is disposed on the upper portion of the lock catch body.

Another aspect of the embodiment of the present invention provides a safety belt assembly, including a safety belt, a lock tongue, and the lock catch as described in any one of the above embodiments, where the lock catch includes a lock catch body, and the lock tongue is disposed at one end of the safety belt and is used to be inserted into the lock catch body and to be connected with the lock catch body in a matching manner.

A further aspect of an embodiment of the present invention provides a vehicle including a vehicle body provided with a seat, and the striker as set forth in any one of the above, the striker including a striker body provided to the seat.

According to the lock catch, the safety belt component and the vehicle, the detection component is arranged to detect the light ray value in the passenger compartment; and through setting up the switch spare, the switch spare is connected with detection component's output electricity, and sets up in the supply circuit of light for when the light value is less than the default, switch on the supply circuit of light, make the light luminous, and then make when passenger's cabin is darker, the passenger also can find the hasp fast, and insert the spring bolt in the hasp.

In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic circuit diagram of a latch according to an embodiment of the present invention;

FIG. 2 is a schematic circuit diagram of another latch according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a lock according to an embodiment of the present invention;

FIG. 4 is a schematic view of the latch of FIG. 3 with the cover plate removed;

fig. 5 is a schematic circuit diagram of another latch according to an embodiment of the present invention.

Description of reference numerals:

1-a lock catch body;

11-a housing;

12-a cover plate;

2-lighting lamp;

3-a detection component;

r1-photoresistor;

r2-voltage dividing resistor;

4-a switch member;

b-a base electrode;

e-an emitter;

c-a collector;

5-circuit board.

With the above figures, certain embodiments of the utility model have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.

Detailed Description

In the related art buckle, it is not easy for a user to find the position of the buckle when light in the passenger compartment is dark, which makes it difficult for the user to operate while wearing a safety belt.

In view of this, a lighting lamp can be arranged on the outer surface of the lock catch, and the lighting lamp can be automatically turned on when the passenger compartment is dark, so as to provide the position of the lock catch for a user, and facilitate the insertion of the lock tongue. In order to realize the automatic on and off of the illuminating lamp, a detection component and a switch piece can be arranged in the passenger compartment, and the detection component can detect the light value of a certain position in the passenger compartment and output the light value to the switch piece. The switch piece can be arranged in a power supply circuit of the illuminating lamp, and the power supply circuit of the illuminating lamp can be switched on or switched off according to the light value, so that the illuminating lamp is turned on or off, and further the automatic on-off of the illuminating lamp is achieved.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Example one

Fig. 1 is a schematic circuit diagram of a latch according to an embodiment of the present invention, fig. 2 is a schematic circuit diagram of another latch according to an embodiment of the present invention, fig. 3 is a schematic perspective view of a latch according to an embodiment of the present invention, fig. 4 is a schematic view of the latch shown in fig. 3 with a cover plate removed, and fig. 5 is a schematic circuit diagram of another latch according to an embodiment of the present invention.

As shown in fig. 1, a lock catch includes a lock catch body 1, an illuminating lamp 2, a detecting component 3 and a switch 4. The illuminating lamp 2 is arranged on the outer surface of the lock catch body 1. The detection assembly 3 is disposed in a passenger compartment of the vehicle and is used for detecting a light value of a preset position in the passenger compartment. The switch member 4 is electrically connected to an output terminal of the detection member 3. The switch 4 is arranged in the power supply circuit of the lighting lamp 2 and used for switching on the power supply circuit of the lighting lamp 2 when the light value is lower than the preset value, so that the lighting lamp 2 emits light.

Specifically, the occupant can see the latch because the light emitted from the latch can enter the human eye. The illumination lamp 2 is installed on the outer surface of the locker body 1 as shown in fig. 3 and 4, so that the passenger can find the position of the locker body 1 in a dark environment by increasing the brightness of the outer surface of the locker body 1.

The above-mentioned optical fiber value is the brightness of a certain place. The larger the value of the fiber, the brighter the spot. The detecting member 3 can detect the brightness at the position thereof. For example, if the detecting component 3 is installed on the lock catch body 1, the detecting component 3 detects the brightness of the lock catch body 1; if the detection assembly 3 is mounted on a structural member in the passenger compartment other than the striker body 1, the detection assembly 3 detects the brightness of the structural member, that is, the detection assembly 3 detects the brightness of the passenger compartment. The structural member can be selected from brightness sensitive parts such as an instrument desk, a central control and the like. When the detection assembly 3 detects the brightness of the passenger compartment, the illuminating lamp 2 arranged on the lock catch body 1 can be connected with the atmosphere lamp arranged on the inner wall of the passenger compartment in series, so that the number of electric devices is reduced, and the cost is saved.

In addition, the light value detected by the detection component 3 can be sent to the switch component 4, and the switch component 4 can receive the light value and compare the light value with a preset value. When the light value is larger than the preset value, namely, when the light value is brighter, the switch piece 4 can cut off the power supply circuit of the illuminating lamp 2. When the optic fibre value is less than the default, when darker promptly, switching element 4 can switch on the supply circuit of light 2 to make 2 both ends of light insert certain voltage, light 2 is luminous, in order to illuminate hasp body 1.

In summary, the lock catch provided by the utility model is provided with the detection component 3 to detect the light value in the passenger compartment; and through setting up switch 4, switch 4 is connected with the output electricity of detecting component 3, and sets up in the supply circuit of light 2 for when the light value is less than the default, switch on the supply circuit of light 2, make light 2 luminous, and then make when the passenger cabin is darker, the passenger also can find the hasp fast, and insert the spring bolt in the hasp.

Alternatively, the detection assembly 3 may include a photo resistor R1 and a voltage dividing resistor R2 connected in series in the power supply circuit. A connection node between the photo resistor R1 and the voltage dividing resistor R2 may be electrically connected to the switching device 4.

Specifically, the photoresistor R1 is a special resistor made of semiconductor material such as cadmium sulfide or cadmium selenide. The working principle is based on the internal photoelectric effect. The higher the illumination intensity, the lower the resistance value, and the resistance value decreases rapidly with the increase of the illumination intensity. The photoresistor R1 is sensitive to light, and is in high resistance state in no illumination, and the resistance value of the high resistance state can reach 1.5M omega generally. In addition, the sensitivity (i.e., spectral characteristics) of the photoresistor R1 to light is very close to the response of the human eye to visible light. As long as the light is perceptible to the human eye, it causes a change in its resistance.

In addition, since the photo resistor R1 is connected in series with the voltage dividing resistor R2, the same current flows through the photo resistor R1 and the voltage dividing resistor R2. The connection node between the photo resistor R1 and the voltage dividing resistor R2 is the output terminal of the detecting component 3 mentioned above, the level value of the output terminal is influenced by the resistance value of the photo resistor R1, and the resistance value of the photo resistor R1 is influenced by the illumination intensity.

Exemplarily, in fig. 1, assuming that power is transferred without loss, a level value of a connection node between the photoresistor R1 and the voltage dividing resistor R2 is a level value of an output terminal of the voltage dividing resistor R2. When the light value is larger than the preset value, the resistance value of the photoresistor R1 is lower, the current of the power supply circuit of the photoresistor R1 and the voltage dividing resistor R2 is larger, the voltage divided by the voltage dividing resistor R2 is larger, the level value of the output end of the voltage dividing resistor R2 is very small, and the switch element 4 receives a lower level value.

With reference to fig. 1, when the light value is smaller than the preset value, the resistance of the photo resistor R1 is larger, the current of the power supply circuit of the photo resistor R1 and the voltage dividing resistor R2 is smaller, the voltage divided by the voltage dividing resistor R2 is smaller, the level value of the output terminal of the voltage dividing resistor R2 is larger, and the switch device 4 receives a higher level value.

Alternatively, the detection assembly 3 may be connected in parallel to both ends of the illumination lamp 2.

Specifically, the detection assembly 3 and the illumination lamp 2 can share one power source, so as to save power. That is, the detection assembly 3 and the illumination lamp 2 are arranged on two different branches connected to the same power supply, the two branches being connected in parallel. Wherein, the branch where the detection component 3 is located is always conducted when the power supply is available. When the branch where the lighting lamp 2 is located is powered by a power supply and the switch element 4 is closed, the branch can be conducted.

Alternatively, the switching element 4 may be a triode, and the photo resistor R1 may be connected between the base b and the emitter e of the switching element 4.

Specifically, the triode is formed by manufacturing two PN junctions which are close to each other on a semiconductor substrate, and the whole semiconductor is divided into three parts by the two PN junctions. The middle part is a base region, the two side parts are an emitter region and a collector region, and the PNP and NPN are arranged. And corresponding electrodes are led out from the three regions and are respectively a base electrode b, an emitter e and a collector c.

When the voltage applied to the emitter junction of the triode is smaller than the conduction voltage of the PN junction, the base current is zero, the collector current and the emitter current are both zero, the triode loses the current amplification effect at this moment, the connection state between the collector and the emitter is equivalent to the disconnection state of a switch, and the triode is called to be in a cut-off state.

When the voltage applied to the emitter junction of the triode is larger than the conduction voltage of the PN junction and the base current is increased to a certain degree, the voltage between the collector and the emitter is small, and the conduction state between the collector and the emitter is equivalent to that of a switch. This state of the transistor is referred to as the saturated conduction state.

Illustratively, in fig. 1, the switch 4 may be an NPN-type transistor, and the base b of the switch 4 may be electrically connected to the output terminal of the detecting component 3, that is, the base b of the switch 4 is electrically connected to a connection node between the photo resistor R1 and the voltage dividing resistor R2. The collector c of the switching element 4 may be electrically connected to the VCC voltage and the emitter e of the switching element 4 may be grounded. As can be seen from the above, when the light value is greater than the preset value, the switch element 4 receives a lower level value, which cannot satisfy the conduction condition of the NPN-type triode, the power supply circuit where the illumination lamp 2 is located is turned off, and the illumination lamp 2 is turned off.

When the light value is smaller than the preset value, the switch piece 4 receives a high level value, the conduction condition of the NPN type triode is met, the power supply circuit where the illuminating lamp 2 is located is conducted, and the illuminating lamp 2 illuminates the lock catch body 1.

For another example, fig. 2 is a schematic circuit diagram of another latch according to an embodiment of the present invention. Referring to fig. 2, the switch 4 is a PNP type triode, and the base b of the switch 4 is electrically connected to the output terminal of the detecting component 3, that is, the base b of the switch 4 is electrically connected to the connection node between the photo resistor R1 and the voltage dividing resistor R2. The emitter e of the switching element 4 is electrically connected to the VCC voltage, and the collector c of the switching element 4 is grounded.

Assuming that the power is transmitted without loss, the level value of the connection node between the photoresistor R1 and the voltage dividing resistor R2 is the level value of the output terminal of the photoresistor R1. When the light value is larger than the preset value, the resistance value of the photoresistor R1 is lower, the current of the power supply circuit of the photoresistor R1 and the voltage dividing resistor R2 is larger, the voltage divided by the voltage dividing resistor R2 is larger, the voltage divided by the photoresistor R1 is smaller, the level value of the output end of the photoresistor R1 is larger, and the switching element 4 receives a lower electric height value. The conduction condition of the PNP type triode cannot be met, the switch piece 4 is turned off, the power supply circuit where the illuminating lamp 2 is located is cut off, and the illuminating lamp 2 is turned off.

With reference to fig. 1, when the light value is smaller than the preset value, the resistance of the photo resistor R1 is larger, the current of the power supply circuit of the photo resistor R1 and the voltage dividing resistor R2 is smaller, the voltage divided by the voltage dividing resistor R2 is smaller, the voltage divided by the photo resistor R1 is larger, the level value of the output terminal of the photo resistor R1 is smaller, and the switching element 4 receives a lower level value. Satisfy the condition of switching on of the triode of PNP type, switch 4 is closed, and the power supply circuit at light 2 place switches on, and light 2 illuminates hasp body 1.

Optionally, the lock catch body 1 is multiple, the lighting lamp 2 can be multiple, and each lock catch body 1 can be provided with one lighting lamp 2. The number of the detecting components 3 can be multiple, and each detecting component 3 can be used for detecting the light value of one lock catch body 1. The switch 4 can be a plurality of, and every switch 4 all can be connected with the output electricity of a detection component 3, and every switch 4 can all set up in the supply circuit of a light 2.

Specifically, a plurality of latch bodies 1 may be provided in the passenger compartment, and each latch body 1 is mounted with the detection assembly 3. One detection component 3 can only detect the brightness of one corresponding lock catch body 1. The lighting lamps 2 on the lock latch bodies 1 are controlled by different switch pieces 4, so that the lighting lamps 2 on the single lock latch body 1 can be controlled independently. The electrical schematic diagram of each switch 4 connected to the corresponding detection assembly 3, the corresponding lamp 2 can be arranged with reference to fig. 1 and 2.

Fig. 3 is a schematic perspective view of a lock according to an embodiment of the present invention. Referring to fig. 3, the latch body 1 may include a housing 11 and a cover plate 12, and an upper portion of the housing 11 may be provided with a first opening for inserting the latch tongue. A lock for locking the bolt may be installed in the housing 11, and a second opening for placing the lock into the housing 11 may be provided in the front of the housing 11. The front side of the second opening may be provided with a cover plate 12 for covering the second opening. Fig. 4 is a schematic view of the latch of fig. 3 with the cover plate 12 removed. Referring to fig. 3 and 4, the detecting component 3 is disposed on the upper surface of the lock catch body 1 to detect the brightness of the first opening of the lock catch body 1, so as to facilitate the insertion of the bolt. In addition, in order to protect the switch member 4, the switch member 4 may be disposed inside the locker body 1. Referring to fig. 4, in order to save space, the inner wall of the housing 11 may be provided with a circuit board 5, and the switching member 4 may be provided on the circuit board 5.

Fig. 5 is a schematic circuit diagram of another latch according to an embodiment of the present invention. Referring to fig. 5, optionally, the lock catch body 1 is provided with a plurality of illuminating lamps 2, and each lock catch body 1 is provided with one illuminating lamp 2. One detection assembly 3 and one switch member 4. The plurality of illuminating lamps 2 are connected in parallel in a power supply circuit where the switch piece 4 is located, and the switch piece 4 is used for switching on the power supply circuit when a light value is lower than a preset value, so that all the illuminating lamps 2 emit light synchronously.

Specifically, a plurality of latch bodies 1 may be provided in the passenger compartment. The detection assembly 3 can be mounted on a structural member in the passenger compartment except the latch body 1, and the detection assembly 3 detects the brightness of the structural member, namely the detection assembly 3 detects the brightness of the passenger compartment. The structural member can be selected from brightness sensitive parts such as an instrument desk, a central control and the like. Different lamps 2 of different lockings are connected in parallel to form a lighting group, and the switch part 4 can be arranged on a main line of a power supply circuit of the lighting group, so that all the lamps 2 of the lighting group are synchronously turned on and off.

In addition, the lighting group can be connected with the atmosphere lamp arranged on the inner wall of the passenger compartment in series, so that the number of electric devices is reduced, and cost is saved conveniently. That is, the lighting groups may be turned on and off in synchronization with the mood light.

Note that fig. 5 illustrates an example in which the switching device 4 is an NPN-type transistor. Of course, the switch element 4 may also be a PNP transistor. The circuit connection mode of the PNP type triode can be obtained by simply replacing the PNP type triode with reference to fig. 2 and 5, and details thereof are not repeated here.

Alternatively, referring to fig. 3 and 4, the illumination lamp 2 may be provided at an upper portion of the locker body 1. Specifically, the upper portion of the buckle body 1 is provided with a first opening for inserting the bolt, and the lamp strip is disposed on the upper portion of the buckle body 1, so that the illuminating lamp 2 can illuminate the first opening as much as possible.

In addition, the illuminating lamp 2 can be a lamp strip. The upper portion of hasp body 1 can be equipped with the recess, and the lamp strip can be embedded in the recess to the fixed and installation of lamp strip. The lamp strip can include the PCB board and set up the lamp pearl on the PCB board. As shown in fig. 1, 2 and 5, the illumination lamp 2 is in the form of a light emitting diode, the anode of which is connected to VCC voltage and the cathode of which is grounded. Finally, it is worth mentioning that grounding as referred to herein refers to an equivalent low potential point of the vehicle.

Example two

The safety belt assembly comprises a safety belt, a bolt and a lock catch provided by the embodiment, wherein the lock catch comprises a lock catch body 1, the bolt is arranged at one end of the safety belt and is used for being inserted into the lock catch body 1 and being matched and connected with the lock catch body 1.

EXAMPLE III

A vehicle comprises a vehicle body and the lock catch as described in the above embodiment, wherein the vehicle body is provided with a seat, the lock catch comprises a lock catch body 1, and the lock catch body 1 is arranged on the seat.

The terms "upper" and "lower" are used for describing relative positions of the structures in the drawings, and are only for the sake of clarity, but not for limiting the scope of the present invention, and the relative relationship changes or adjustments are also considered to be within the scope of the present invention without substantial technical changes.

It should be noted that: in the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A latch for a vehicle, comprising:

a lock catch body;

the illuminating lamp is arranged on the outer surface of the lock catch body;

the detection component is arranged in a passenger compartment of the vehicle and is used for detecting the light value of a preset position in the passenger compartment;

the switch piece is electrically connected with the output end of the detection assembly, arranged in the power supply circuit of the illuminating lamp and used for switching on the power supply circuit of the illuminating lamp when the light value is lower than a preset value, so that the illuminating lamp emits light.

2. A latch for a vehicle according to claim 1, wherein said detection assembly includes a photo resistor and a voltage dividing resistor connected in series in a power supply circuit, and a connection node between said photo resistor and said voltage dividing resistor is electrically connected to said switching element.

3. A latch for a vehicle according to claim 2, wherein said detection assembly is connected in parallel at both ends of said illumination lamp.

4. A latch for a vehicle according to claim 2, wherein said switch is a triode and said photoresistor is connected between the base and emitter of said switch.

5. A latch for a vehicle according to any one of claims 1 to 4, wherein there are a plurality of said latch bodies, a plurality of said illumination lamps, and one said illumination lamp for each said latch body;

the number of the detection assemblies is multiple, and each detection assembly is used for detecting the light value of one lock catch body;

the switch spare is a plurality of, every switch spare all with one detection component's output electricity is connected, every the switch spare all sets up one in the supply circuit of light.

6. A latch for a vehicle according to claim 5, wherein the detection member is provided on an upper surface of the latch body; and/or the presence of a gas in the gas,

the switch piece is arranged inside the lock catch body.

7. A latch for a vehicle according to any one of claims 1 to 4, wherein there are a plurality of said latch bodies, a plurality of said illumination lamps, and one said illumination lamp for each said latch body;

the number of the detection assemblies is one, and the number of the switch pieces is one;

the lighting lamps are connected in parallel in a power supply circuit where the switch piece is located, and the switch piece is used for conducting the power supply circuit when the light value is lower than a preset value, so that all the lighting lamps synchronously emit light.

8. A striker for a vehicle according to claim 1, characterized in that the illumination lamp is provided at an upper portion of the striker body.

9. A safety belt assembly comprising a safety belt, a tongue and a buckle according to any one of claims 1 to 8, the buckle comprising a buckle body, the tongue being disposed at one end of the safety belt and adapted to be inserted into and cooperatively connected with the buckle body.

10. A vehicle comprising a body provided with a seat and a striker according to any one of claims 1 to 8, said striker comprising a striker body provided to said seat.

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