Locking element, safety belt end closing device, safety belt assembly, seat and vehicle

Abstract

The utility model discloses a locking element, safety belt end closing device, safety belt assembly, seat and vehicle, the locking element includes: locking body, at least one stop portion and at least one limit portion, the stop portion is provided on the locking body, the locking body includes two opposite first surface along the first direction, the stop portion protrudes at least one first surface, and the limit portion is provided on the stop portion. The limiting part is arranged on the locking body, the locking body comprises two second surfaces which are opposite in the second direction, the limiting part protrudes out of at least one second surface, and the limiting part and the blocking part are located on the two sides, in the third direction, of the locking body respectively. Therefore, the blocking part and the limiting part which protrude out of the locking body are arranged on the locking body, so that the locking element can be conveniently assembled with other parts in the safety belt end closing device, the limiting effect on the locking element is achieved, and the locking element is prevented from falling off. The locking element is simple in structure, low in machining difficulty, low in manufacturing cost, low in assembly difficulty and capable of achieving automatic equipment assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a locking element, a safety belt end closing device, a safety belt assembly, a seat and a vehicle. Background Art

[0002] The seat belt end closing device in the related art locks or releases the tongue by rotating the locking element. When the locking element in some seat belt end closing devices is in the release position, only one side of the anchoring surface forms a stopper, which poses a risk of falling off. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first purpose of the utility model is to provide a locking element, which can reduce the production cost and assembly cost of the locking element and improve the structural strength of the locking element.

[0004] The second object of the present invention is to provide a safety belt end closing device, comprising a tongue, a housing and the locking element described in the above embodiment.

[0005] The third object of the present utility model is to provide a safety belt assembly, comprising the safety belt end closing device described in the above embodiment.

[0006] A fourth objective of the present utility model is to provide a seat, comprising the safety belt assembly described in the above embodiment.

[0007] A fifth object of the present utility model is to provide a vehicle, comprising the safety belt assembly or the seat described in the above embodiment.

[0008] According to the locking element of the first aspect of the utility model, the locking element comprises: a locking body, at least one blocking portion and at least one limiting portion, wherein the blocking portion is arranged on the locking body, the locking body comprises two first surfaces opposite to each other along a first direction, the blocking portion protrudes from at least one of the first surfaces, the limiting portion is arranged on the locking body, the locking body comprises two second surfaces opposite to each other along a second direction, the limiting portion protrudes from at least one of the second surfaces; the limiting portion and the blocking portion are respectively located on both sides of the locking body along a third direction.

[0009] According to the locking element of the embodiment of the utility model, by providing a stopper and a limiter protruding from the locking body on the locking body, it is convenient to assemble the locking element with other components in the safety belt end closure device, realize the limit effect on the locking element, and prevent the locking element from falling off. The locking element has a simple structure, low processing difficulty, low manufacturing cost, low assembly difficulty, and can be assembled by automated equipment, which is conducive to reducing the production cost and assembly cost of the locking element, while improving the overall structural strength of the locking element.

[0010] In some embodiments, the first direction is perpendicular to the second direction.

[0011] In some embodiments, the first direction, the second direction, and the third direction are orthogonal.

[0012] In some embodiments, an area of ​​a cross section of the limiting portion perpendicular to the second direction gradually decreases in a direction away from the locking body.

[0013] In some embodiments, there are two limiting portions, and the two limiting portions protrude from the two second surfaces of the locking body respectively.

[0014] In some embodiments, the two limiting portions are staggered and distributed along the first direction.

[0015] In some embodiments, the locking body, the blocking portion and the limiting portion are an integrally formed part.

[0016] In some embodiments, the locking body, the blocking portion and the limiting portion are powder metallurgy parts or metal casting parts.

[0017] In some embodiments, the limiting portion is disposed on the locking body.

[0018] In some embodiments, the limiting portion is a pin.

[0019] In some embodiments, a mating groove is formed on the locking body; the limiting portion includes a connecting portion and two protruding portions, the connecting portion is connected between the two protruding portions, the connecting portion is mated in the mating groove, and the two protruding portions respectively protrude from the two second surfaces of the locking body.

[0020] In some embodiments, there are two stoppers, and the two stoppers protrude from the two first surfaces of the locking body respectively.

[0021] According to the second aspect of the present invention, the safety belt end closing device comprises: a tongue, a shell and a locking element, wherein the shell is provided with a tongue channel suitable for the tongue to extend into, and the locking element is the locking element according to the first aspect of the present invention, wherein the locking element is movably arranged on the shell, and the locking element can move between a locking position and a release position to fix or release the tongue.

[0022] In some embodiments, the shell includes a connecting plate and two shell plates, the connecting plate is connected between the two shell plates, and the connecting plate and the two shell plates jointly define the tongue channel.

[0023] In some embodiments, limiting holes are respectively formed on the two shell plates, the locking body of the locking element is located between the two shell plates, the limiting portion and the blocking portion of the locking element are respectively located on the side of the two shell plates away from each other, and the limiting portion and the blocking portion are respectively rotatably matched with the corresponding limiting holes.

[0024] The seat belt assembly according to the third aspect of the present invention comprises a seat belt and a seat belt end closing device according to the second aspect of the present invention, wherein the seat belt is connected to the tongue.

[0025] The seat according to the fourth aspect of the present invention comprises the safety belt assembly according to the third aspect of the present invention.

[0026] The vehicle according to the fifth aspect of the present invention comprises the safety belt assembly according to the third aspect of the present invention, or the seat according to the fourth aspect of the present invention.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 Schematic diagram of a safety belt end closure device according to an embodiment of the utility model.

[0030] Figure 2 It is a locking schematic diagram of a safety belt end closing device according to an embodiment of the utility model.

[0031] Figure 3 Schematic diagram of an explosion of a safety belt end closure device according to an embodiment of the utility model.

[0032] Figure 4 It is a schematic diagram of a first embodiment of a locking element according to an embodiment of the utility model.

[0033] Figure 5 It is a schematic diagram of a second embodiment of the locking element according to the embodiment of the utility model.

[0034] Figure 6 It is a schematic diagram of a third embodiment of the locking element according to the embodiment of the utility model.

[0035] Figure 7 It is a schematic diagram of a fourth embodiment of the locking element according to the embodiment of the utility model.

[0036] Reference numerals:

[0037] 100. Seat belt end closure device;

[0038] 10. Locking element; 11. Locking body; 12. Stopper; 13. Limiting part; 14. Protruding part; 15. Connecting part;

[0039] 20. tongue; 21. locking groove; 22. connecting ring; 23. safety belt;

[0040] 30. housing; 31. connecting plate; 32. housing plate; 33. tongue passage; 34. limiting hole; 35. first recessed portion;

[0041] 40. elastic element; 41. first end; 42. second end;

[0042] 50. Fixing elements;

[0043] 60. Safety element; 61. First protrusion; 62. Second protrusion; 63. Third protrusion;

[0044] 70. opening element; 71. first arm; 72. second arm;

[0045] 80. Connecting elements;

[0046] A, first direction; B, second direction; C, third direction; D, length direction; E, width direction; F, thickness direction. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 7 The locking element 10 according to the embodiment of the present invention comprises: a locking body 11, at least one stopper 12 and at least one limiting portion 13. The locking body 11 has a first direction A, a second direction B and a third direction C.

[0048] Specifically, if Figure 1-Figure 7 As shown, the blocking portion 12 is arranged on the locking body 11, the locking body 11 includes two first surfaces opposite to each other along the first direction A, the blocking portion 12 protrudes from at least one first surface, the limiting portion 13 is arranged on the locking body 11, the locking body 11 includes two second surfaces opposite to each other along the second direction B, and the limiting portion 13 protrudes from at least one second surface; the limiting portion 13 and the blocking portion 12 are respectively located on both sides of the locking body 11 along the third direction C.

[0049] Combination Figure 4-Figure 7 The stopper 12 extends along the first direction A of the locking body 11, one end of the stopper 12 along the first direction A is connected to at least one first surface of the locking body 11, and the other end of the stopper 12 along the first direction A extends in a direction away from the locking body 11. The limiting portion 13 extends along the second direction B of the locking body 11, one end of the limiting portion 13 along the second direction B is connected to at least one second surface of the locking body 11, and the other end of the limiting portion 13 along the second direction B extends in a direction away from the locking body 11.

[0050] The locking element 10 is applicable to the safety belt end closure device 100. The locking element 10 is arranged inside the safety belt end closure device 100 and cooperates with other components. The locking and unlocking of the safety belt end closure device 100 is achieved through the relative movement between the locking element 10 and other components.

[0051] According to the locking element 10 of the embodiment of the utility model, by providing the blocking portion 12 and the limiting portion 13 protruding from the locking body 11 on the locking body 11, it is convenient to assemble the locking element 10 with other components in the safety belt end closure device 100, realize the limiting effect on the locking element 10, and prevent the locking element 10 from falling off. The locking element 10 has a simple structure, low processing difficulty, low manufacturing cost, low assembly difficulty, and can be assembled by automated equipment, which is conducive to reducing the production cost and assembly cost of the locking element 10, while improving the overall structural strength of the locking element 10.

[0052] According to some embodiments of the present invention, the first direction A and the second direction B are perpendicular.

[0053] According to some embodiments of the present invention, Figure 4As shown, the first direction A, the second direction B and the third direction C are orthogonal. That is, one end of the limiting portion 13 along the second direction B is suitable for connecting with one end of the locking body 11 along the third direction C, and the limiting portion 13 and the locking body 11 are perpendicular to each other. Therefore, the limiting portion 13 and the stopper 12 are respectively located on both sides of the locking body 11 along the third direction C so that the limiting portion 13 and the stopper 12 can limit the locking element 10 in the third direction C. The setting of the stopper 12 facilitates the limiting of the locking element 10 in the first direction A, and the setting of the limiting portion 13 facilitates the limiting of the locking element 10 in the second direction B, so that the assembly of the locking element 10 is more stable and convenient.

[0054] According to some embodiments of the present invention, Figure 4 As shown, the area of ​​the cross section of the limiting portion 13 perpendicular to the second direction B gradually decreases in the direction away from the locking body 11. That is, the limiting portion 13 is a triangular structure or a trapezoidal structure. Therefore, the structure in which the cross section of the limiting portion 13 gradually decreases in the direction away from the locking body 11 can reduce the production materials of the locking element 10 while ensuring the assembly effect of the locking element 10 with other components, thereby reducing the production cost of the locking element 10, and the limiting portion 13 is relatively small in size, which can reduce the interference of the limiting portion 13 with other components when assembling the locking element 10, thereby facilitating the assembly of the locking element 10.

[0055] According to some embodiments of the present invention, Figure 5 As shown, there are two limiting parts 13, and the two limiting parts 13 protrude from the two second surfaces of the locking body 11 respectively. The limiting parts 13 extend along the second direction B of the locking body 11, and the ends of the two limiting parts 13 close to each other along the second direction B are respectively connected to the two side surfaces of the locking body 11 along the second direction B, and the other ends of the two limiting parts 13 away from each other along the second direction B extend in a direction away from the locking body 11. Thus, the two limiting parts 13 are respectively located on both sides of the locking body 11 along the second direction B, which facilitates the limiting of the locking body 11 on both sides of the second direction B, and ensures the firmness of the assembly of the locking body 11.

[0056] According to some embodiments of the present invention, Figure 5 As shown, the two limiting portions 13 are staggered along the first direction A. That is, the two limiting portions 13 are not completely opposite to each other along the second direction B of the locking body 11. Therefore, the staggered distribution of the two limiting portions 13 along the first direction A can make the locking element 10 more convenient and flexible to cooperate with other components.

[0057] According to some embodiments of the utility model, the locking body 11, the stopper 12 and the limiting part 13 are an integrally formed part. The integrally formed process is relatively simple, and the processing of the locking body 11, the stopper 12 and the limiting part 13 can be completed in one mold, which can greatly reduce the production time and cost of the locking element 10, and at the same time can improve the production accuracy and consistency of the locking element 10. In addition, there are no structures such as interfaces inside the integrally formed part, and there is no problem of weaknesses at the interfaces. Therefore, the locking body 11, the stopper 12 and the limiting part 13 are an integrally formed part, which is conducive to improving the structural strength of the locking element 10, improving the manufacturing accuracy of the locking element 10, stabilizing the product dimensional accuracy, and ensuring the product quality of the locking element 10. At the same time, the integrally formed part does not require an assembly process and can be directly installed, which is convenient for the production and subsequent maintenance of the locking element 10.

[0058] According to some embodiments of the utility model, the locking body 11, the stopper 12 and the limiter 13 are powder metallurgy parts or metal castings. Powder metallurgy parts have the characteristics of strong controllability, maximum utilization of raw materials in the process of preparing parts, convenience in preparing structures with complex shapes, high reliability and wide application. Metal castings have the characteristics of high flexibility, wide range of materials, low production cost, high production efficiency and excellent finished product performance. Therefore, the locking body 11, the stopper 12 and the limiter 13 are powder metallurgy parts or metal castings, which is conducive to improving the overall performance of the locking element 10, reducing the production cost of the locking element 10, facilitating the mass production of the locking element 10, and improving the production efficiency of the locking element 10.

[0059] According to some embodiments of the present invention, Figure 6 As shown, the limiting portion 13 is provided on the locking body 11. The limiting portion 13 protrudes from at least one first surface of the locking body 11 opposite to each other along the second direction B. The limiting portion 13 extends along the second direction B of the locking body 11, and a through hole is provided on the locking body 11, and the through hole penetrates the locking body 11 along the second direction B of the locking body 11. The limiting portion 13 is provided in the through hole to be fixedly installed on the locking body 11, and the end of the limiting portion 13 along the second direction B protrudes from at least one second surface of the locking body 11. As a result, the installation method between the limiting portion 13 and the locking body 11 is simple, which is conducive to simplifying the structure of the limiting portion 13 and the locking body 11.

[0060] According to some embodiments of the present invention, Figure 6 As shown, the limiting part 13 is a pin. The limiting part 13 and the locking body 11 are fixed by a pin, and the pin fixing method can be quickly installed and disassembled, which is convenient and quick. Therefore, the production cost of the pin is low, and the pin fixing does not require excessive processing and treatment to achieve the fixing effect of the limiting part 13 and the locking body 11, which is conducive to saving production costs and improving production efficiency.

[0061] According to some embodiments of the present invention, Figure 7 As shown, a matching groove is formed on the locking body 11; the limiting part 13 includes a connecting part 15 and two protruding parts 14, the connecting part 15 is connected between the two protruding parts 14, the connecting part 15 is matched in the matching groove, and the two protruding parts 14 protrude from the two second surfaces of the locking body 11 respectively. A matching groove is formed at one end of the locking body 11 along the third direction C, and the matching groove is formed by a part of the end surface of the locking body 11 along the third direction C being concave toward the direction close to the center of the locking body 11 along the third direction C. The limiting part 13 is an I-shaped structure, the two protruding parts 14 extend along the first direction A of the locking body 11, the connecting part 15 is arranged between the two protruding parts 14 along the second direction B of the locking body 11, and the connecting part 15 is suitable for matching in the matching groove, so that the limiting part 13 is embedded in the locking body 11. Therefore, a matching groove is formed on the locking body 11 to facilitate the assembly of the limiting part 13, and the connecting part 15 of the limiting part 13 is used to cooperate with the matching groove to fix the limiting part 13 on the locking body 11, thereby improving the structural strength of the locking element 10 and ensuring the limiting effect of the limiting part 13.

[0062] According to some embodiments of the present invention, Figure 4-Figure 7 As shown, there are two stoppers 12, and the two stoppers 12 protrude from the two first surfaces of the locking body 11 respectively. The stoppers 12 are formed by the first surface of the locking body 11 protruding in a direction away from the center of the locking body 11, and the two stoppers 12 are respectively connected to the two first surfaces of the locking body 11. The two stoppers 12 are arranged opposite to each other along the first direction A of the locking body 11, and the two stoppers 12 are located at one end of the locking body 11 along the third direction C. As a result, the two stoppers 12 protrude from the two first surfaces of the locking body 11 respectively, which improves the stability and reliability of the assembly of the locking body 11 with other components.

[0063] According to the second aspect of the present invention, the safety belt end closure device 100 is as follows: Figure 1-Figure 3 As shown, the safety belt end closure device 100 includes: a tongue 20, a housing 30 and a locking element 10. The housing 30 is provided with a tongue passage 33 suitable for the tongue 20 to extend into, and the locking element 10 is the locking element 10 according to the first embodiment of the utility model. The locking element 10 is movably arranged on the housing 30, and the locking element 10 can move between a locking position and a release position to fix or release the tongue 20. The safety belt end closure device 100 has a length direction D, a width direction E and a thickness direction F, and the length direction D, the width direction E and the thickness direction F are orthogonal. A locking groove 21 is provided on the tongue 20, and the locking groove 21 is formed by a part of a side surface of the tongue 20 along the width direction E being recessed toward the center of the tongue 20, and the locking groove 21 is suitable for cooperating with the locking body 11 of the locking element 10.

[0064] According to the seat belt end closure device 100 in the embodiment of the utility model, a tongue channel 33 is provided on the shell 30 to facilitate the cooperation between the shell 30 and the locking element 10. The locking and unlocking of the seat belt end closure device 100 can be achieved through the cooperation and separation between the locking groove 21 on the tongue 20 and the locking body 11 of the locking element 10.

[0065] According to some embodiments of the present invention, Figure 1-3 As shown, the housing 30 includes a connecting plate 31 and two housing plates 32 . The connecting plate 31 is connected between the two housing plates 32 . The connecting plate 31 and the two housing plates 32 jointly define a tongue channel 33 .

[0066] The two housing plates 32 are arranged opposite to each other in a thickness direction F, and the connecting plate 31 extends in the thickness direction F. The connecting plate 31 is connected to the same side of the two housing plates 32 in the width direction E. One end of the connecting plate 31 in the thickness direction F is connected to one end of one housing plate 32 in the width direction E, and the other end of the connecting plate 31 in the thickness direction F is connected to one end of the other housing plate 32 in the width direction E, that is, the connecting plate 31 and the two housing plates 32 are in a C-shaped structure. The interval formed between the two housing plates 32 is the tongue channel 33.

[0067] According to some embodiments of the present invention, Figure 1-3 As shown, the two housing plates 32 are respectively formed with limiting holes 34, which are arranged through the housing plates 32 along the thickness direction F, and the limiting holes 34 on the two housing plates 32 are arranged opposite to each other along the thickness direction F. The housing 30 is also formed with a first recessed portion 35, which is formed by a portion of the connecting plate 31 being recessed along the width direction E toward the center of the housing 30, and the upper end of the first recessed portion 35 along the length direction D is suitable for detachably matching with the lower end of the tongue piece 20 along the length direction D.

[0068] The locking body 11 of the locking element 10 is located between the two shell plates 32, and the limiting portion 13 and the blocking portion 12 of the locking element 10 are respectively located on the side of the two shell plates 32 away from each other. The limiting portion 13 and the blocking portion 12 are respectively rotatably matched with the corresponding limiting holes 34, and the tongue piece 20 is detachably matched with the locking body 11.

[0069] The locking element 10 is inserted into the limiting holes 34 on the two housing plates 32 along the thickness direction F, wherein the locking body 11 of the locking element 10 is located between the two housing plates 32, the limiting portion 13 of the locking element 10 is located on the side of one of the housing plates 32 away from the center of the housing 30 along the thickness direction F, and the stopper 12 of the locking element 10 is located on the side of the other housing plate 32 away from the center of the housing 30 along the thickness direction F. The limiting hole 34 of the locking element 10 is a fan-shaped structure, and the locking element 10 can rotate counterclockwise or clockwise at a certain angle in the limiting hole 34 along one side of the locking element 10 along the third direction C as an axis, and the other side of the locking element 10 along the third direction C is suitable for detachably matching with the locking groove 21 on the tongue 20. When the locking element 10 rotates in the limiting hole 34, the limiting portion 13 is always in sliding contact with a side surface of a shell plate 32 away from the center of the shell 30 along the thickness direction F, and the blocking portion 12 is always in sliding contact with a side surface of the other shell plate 32 away from the center of the shell 30 along the thickness direction F. The limiting portion 13 and the blocking portion 12 can always limit the locking element 10 in the thickness direction F of the shell 30, so that the locking element 10 is always located in the limiting holes 34 of the two shell plates 32, ensuring that the locking element 10 will not tilt laterally during the rotation process.

[0070] Combination Figure 3 The safety belt end closure device 100 further includes: an elastic element 40, a fixing element 50 and a safety element 60. The fixing element 50 is adapted to cooperate with the housing 30, the safety element 60 and the elastic element 40 are arranged between the two housing plates 32, and the safety element 60 and the elastic element 40 are fixed to the housing 30 through the fixing element 50. The elastic element 40 cooperates with the safety element 60, and the elastic element 40 is rotatable relative to the safety element 60, and the safety element 60 cooperates with the fixing element 50, and the safety element 60 is rotatable relative to the fixing element 50. The elastic element 40 includes a first end 415.1 and a second end 425.2, and the safety element 60 includes a first protrusion 61, a second protrusion 62 and a third protrusion 63, and the first protrusion 61, the second protrusion 62 and the third protrusion 63 are arranged at intervals along the circumference of the safety element 60. The first end 41 of the elastic element 40 is suitable for abutting against the third protrusion 63 of the safety element 60, the second end 42 of the elastic element 40 is suitable for detachably cooperating with the lower end of the tongue 20 along the length direction D, and the second protrusion 62 of the safety element 60 is suitable for abutting against a side surface of the locking body 11 along the second direction B.

[0071] Combination Figure 1-Figure 3 , the movement process of the safety belt end closing device 100 is as follows:

[0072] Under the action of external force, the tongue 20 extends into the tongue channel 33 from top to bottom along the length direction D. During the process of the tongue 20 extending into the tongue channel 33, the right side of the tongue 20 along the width direction E is suitable for sliding contact with the left side of the connecting plate 31 along the width direction E. A locking groove 21 is formed on the left side of the tongue 20 along the width direction E. After the tongue piece 20 moves downward for a distance, the lower end of the tongue piece 20 along the length direction D contacts the second end 42 of the elastic element 40, and the tongue piece 20 compresses the second end 42 of the elastic element 40 to make the second end 42 of the elastic element 40 rotate clockwise in the direction away from the locking element 10. At the same time, the first end 41 of the elastic element 40 rotates clockwise, and the first end 41 of the elastic element 40 abuts against the third protrusion 63 of the safety element 60. When the first end 41 of the elastic element 40 rotates, the safety element 60 is driven to rotate clockwise, and the second protrusion 62 of the safety element 60 abuts against one side surface of the locking body 11, thereby driving the locking body 11 to rotate counterclockwise, that is, to rotate in the direction close to the tongue piece 20, until the locking body 11 stops rotating when the other side of the locking body 11 along the third direction C is engaged in the locking groove 21. At the same time, the insertion depth of the tongue 20 has approached the limit position, and when the lower end of the tongue 20 along the length direction D abuts against the upper end of the first recessed portion 35 of the connecting plate 31 along the length direction D, the tongue 20 stops moving. At this time, the locking element 10 and the tongue 20 are fixedly connected together under the action of the elastic element 40 and the safety element 60, and the locking of the safety belt end closure device 100 is completed.

[0073] The safety belt end closure device 100 further includes an opening element 70, which includes a first arm 71 and a second arm 72, both of which extend along the width direction E. When the safety belt end closure device 100 is locked, it can be unlocked by the opening element 70. First, along the width direction E, a force is applied to the tongue 20 to overcome the elastic element 40 so that the locking element 10 is separated from the locking groove 21 of the tongue 20, and then the first arm 71 and the second arm 72 are successively inserted into the housing 30. The first arm 71 is first inserted into the tongue channel 33 from the left side of the housing 30 along the width direction E, so that the right end of the first arm 71 along the width direction E stops against the first protrusion 61 of the safety element 60, so that the safety element 60 rotates counterclockwise by a certain angle, and at the same time, the second protrusion 62 of the safety element 60 is separated from the locking element 10. Then, the second arm 72 is inserted from the right side of the shell 30 along the width direction E, so that the left end of the second arm 72 along the width direction E contacts the stopper 12 of the locking element 10, and the locking element 10 rotates clockwise under the action of the second arm 72. When the locking element 10 rotates a certain angle, the force applied to the tongue 20 is cancelled, and the third protrusion 63 of the safety element 60 contacts the first end 41 of the elastic element 40. The counterclockwise rotation of the safety element 60 can drive the first end 41 and the second end 42 of the elastic element 40 to rotate counterclockwise by a certain angle, and the counterclockwise rotation of the second end 42 of the elastic element 40 can drive the tongue 20 to move upward along the length direction D, thereby realizing the movement process of the tongue 20 popping out from the tongue channel 33, and completing the unlocking process of the safety belt end closing device 100.

[0074] According to the seat belt end closure device 100 of the embodiment of the utility model, the seat belt end closure device 100 has a simple structure, simple operation and low production cost, the locking process and unlocking process of the seat belt end closure device 100 are simple, and the use is flexible and convenient, and the overall structural strength of the seat belt end closure device 100 is good, which is conducive to improving the reliability of the seat belt end closure device 100.

[0075] The safety belt assembly according to the third aspect of the utility model comprises a safety belt 23 and a safety belt end closing device 100 according to the second aspect of the utility model, wherein the safety belt 23 is connected to the tongue 20. A connecting ring 22 is provided at one end of the tongue 20 along the length direction D, and the safety belt 23 is connected to the connecting ring 22 of the tongue 20.

[0076] According to the seat belt assembly of the embodiment of the utility model, by using the seat belt end closing device 100 in the above embodiment, the installation and disassembly process of the seat belt assembly can be simplified, the practicality of the seat belt assembly can be improved, and the replacement and maintenance costs of the seat belt assembly can be reduced.

[0077] The seat according to the fourth aspect of the present invention comprises the safety belt assembly according to the third aspect of the present invention.

[0078] The seat according to the embodiment of the utility model, by using the safety belt assembly described in the above embodiment, is conducive to enhancing the practicality of the seat and improving the user experience comfort.

[0079] The vehicle according to the fifth aspect of the present invention comprises the safety belt assembly according to the third aspect of the present invention, or the seat according to the fourth aspect of the present invention.

[0080] Combination Figure 1 The lower end of the seat belt end closure device 100 along the length direction D is provided with a connecting element 80, and the connecting element 80 is suitable for connecting with a pyrotechnic lap pretensioner (PLP) in the vehicle, and the upper end of the seat belt end closure device 100 is connected to the seat belt assembly.

[0081] According to the vehicle of the embodiment of the utility model, by using the seat belt assembly or seat of the above embodiment, if the seat belt assembly needs to be tightened or loosened, it can be achieved by unlocking the seat belt end closing device 100, which also facilitates the disassembly and assembly of the seat belt assembly, so as to facilitate the maintenance and replacement of the seat belt assembly, which is beneficial to improving the practicality of the vehicle, reducing maintenance costs, and improving user experience.

[0082] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0083] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0084] 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 expressions of the above terms do not necessarily refer to the same embodiment or example.

[0085] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A locking element, characterized in that: include: Lock the body; at least one stopper, the stopper being arranged on the locking body, the locking body comprising two first surfaces opposite to each other along a first direction, the stopper protruding from at least one of the first surfaces; at least one limiting portion, the limiting portion being disposed on the locking body, the locking body comprising two second surfaces opposite to each other along a second direction, the limiting portion protruding from at least one of the second surfaces; The limiting portion and the blocking portion are respectively located on two sides of the locking body along the third direction.

2. The locking element according to claim 1, characterized in that The first direction is perpendicular to the second direction.

3. The locking element according to claim 1, characterized in that The first direction, the second direction and the third direction are orthogonal.

4. The locking element according to claim 1, characterized in that An area of ​​a cross section of the limiting portion perpendicular to the second direction gradually decreases in a direction away from the locking body.

5. The locking element according to claim 1, characterized in that There are two limiting portions, and the two limiting portions protrude from the two second surfaces of the locking body respectively.

6. The locking element according to claim 5, characterized in that The two limiting portions are staggered and distributed along the first direction.

7. The locking element according to claim 1, characterized in that The locking body, the blocking portion and the limiting portion are an integrally formed part.

8. The locking element according to claim 1, characterized in that The locking body, the blocking portion and the limiting portion are powder metallurgy parts or metal casting parts.

9. The locking element according to claim 1, characterized in that The limiting portion is disposed on the locking body.

10. The locking element according to claim 9, characterized in that The limiting portion is a pin.

11. The locking element according to claim 9, characterized in that A matching groove is formed on the locking body; The limiting portion includes a connecting portion and two protruding portions, wherein the connecting portion is connected between the two protruding portions, the connecting portion is fitted in the fitting groove, and the two protruding portions protrude from the two second surfaces of the locking body respectively.

12. The locking element according to any one of claims 1 to 11, characterized in that There are two stoppers, and the two stoppers protrude from the two first surfaces of the locking body respectively.

13. A safety belt end closure device, characterized in that: include: Tongue; A housing, the housing being provided with a tongue channel into which the tongue extends; A locking element, wherein the locking element is the locking element according to any one of claims 1 to 12, wherein the locking element is movably arranged on the housing, and wherein the locking element can move between a locking position and a releasing position to fix or release the tongue.

14. The safety belt end closure device according to claim 13, characterized in that: The housing comprises a connecting plate and two housing plates, wherein the connecting plate is connected between the two housing plates, and the connecting plate and the two housing plates jointly define the tongue channel.

15. The safety belt end closure device according to claim 14, characterized in that: Limiting holes are respectively formed on the two shell plates, the locking body of the locking element is located between the two shell plates, the limiting portion and the blocking portion of the locking element are respectively located on the side of the two shell plates away from each other, and the limiting portion and the blocking portion are respectively rotatably matched with the corresponding limiting holes.

16. A seat belt assembly, characterized in that: The invention comprises a safety belt and the safety belt end closure device according to claim 13, wherein the safety belt is connected to the tongue.

17. A seat, characterized in that: Includes the seat belt assembly described in claim 16.

18. A vehicle, characterized in that: Comprising the seat belt assembly according to claim 16, or the seat according to claim 17.

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