Automobile back row lock catch

Abstract

According to the technical scheme, the automobile back row lock catch is characterized in that the automobile back row lock catch comprises a metal base, the metal base comprises a bottom plate, a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are fixed to the two sides of the bottom plate, a pull belt is fixed to the first vertical plate, and a first lock catch is fixed to the pull belt; a second lock catch rotating vertically is hinged to the second vertical plate, a rotating shaft is arranged between the second vertical plate and the second lock catch and sleeved with a torsional spring driving the second cable harness to rotate upwards, the first lock catch is connected with a first bunch, the second lock catch is connected with a second bunch, the first bunch and the second bunch are fixed together, one of the two adjacent lock catches is rotationally connected, and the other lock catch is rotationally connected with the other lock catch. One lock catch is connected with the other lock catch through a drawstring, so that only one lock catch can swing, the other lock catch is positioned, the situation that the two lock catches collide with the hip of a sitting user at the same time is avoided, and the comfort of the sitting user is improved when the sitting user sits in the back row.

Description

Technical Field

[0001] The utility model relates to a lock buckle, more specifically, it relates to a rear-row lock buckle for an automobile. Background Art

[0002] The front row of the car is the main driver's seat and the co-driver's seat, which use independent seat belt buckles. The back row of the car is a row of three seats. The traditional design of the back row of the car uses three independent safety buckles, and the three safety buckles are fixed with drawstrings. The safety buckles are fixed to the ends of the drawstrings and placed on the seats of the car.

[0003] When the car is driving, the safety buckle will swing on the seat because of the long strap. It is common for two adjacent buckles to be thrown onto the seat surface of a rear seat at the same time. When the user sits in the rear seat, the two seat belt buckles will often hit the hips, reducing the comfort when sitting in the rear seat of the car. Utility Model Content

[0004] The purpose of the utility model is to provide a rear-seat lock buckle for an automobile, wherein two adjacent lock buckles are connected by rotation, and the other is connected by a drawstring, so that only one lock buckle can swing and the other lock buckle is positioned, and the two lock buckles are located between two seats, so that the situation that the two lock buckles hit the buttocks of the passengers at the same time will not occur, thereby improving the comfort of the passengers when sitting in the rear seat.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A rear-seat lock buckle for a car comprises a metal base, which comprises a bottom plate and a first vertical plate and a second vertical plate fixed on both sides of the bottom plate, the first vertical plate being fixed with a drawstring, the drawstring being fixed with a first lock buckle; the second vertical plate being hinged with a second lock buckle that rotates vertically, a rotating shaft being provided between the second vertical plate and the second lock buckle, the rotating shaft sleeve being provided with a torsion spring that drives the second cable to rotate upward, the first lock buckle being connected with a No. 1 wire harness, the second lock buckle being connected with a No. 2 wire harness, and the No. 1 wire harness and the No. 2 wire harness being fixed together.

[0007] Preferably, the No. 1 cable harness and the No. 2 cable harness sleeve are provided with cable sleeves for fixing both.

[0008] Preferably, the second vertical plate is fixed with a buckle for positioning the wire sleeve.

[0009] Preferably, the second vertical plate is provided with a through hole, and the wire sleeve passes through the second vertical plate from the through hole; the through hole is located below the second vertical plate, and the second locking buckle is located above the second vertical plate.

[0010] Preferably, the drawstring includes an elastic belt located in between, and fixing belts are fixed at both ends of the elastic belt.

[0011] Preferably, a limiting ring is fixed to the second vertical plate, the limiting ring is arranged facing the first vertical plate, and the drawstring is passed through the limiting ring.

[0012] Preferably, the metal base is an aluminum alloy base.

[0013] Preferably, the bottom plate includes two fixed plates and two movable plates; the first vertical plate and the second vertical plate each fix a fixed plate, the fixed plate and a movable plate are hinged, and the two movable plates are provided with hinge shafts for folding; and fixing holes are provided on the fixed plates.

[0014] Preferably, one movable plate is threadedly connected with a bolt, and the other movable plate is provided with a waist-shaped hole, through which the bolt is passed, and the folded movable plate is abutted against a nut installed on the bolt.

[0015] In summary, the utility model has the following beneficial effects:

[0016] (1) The buckle with one rotating connection cannot swing and therefore will not enter the seat cushion, thereby reducing the probability of two buckles hitting the user's buttocks at the same time and improving comfort.

[0017] The reason why both locks are not designed as a rotating fixed connection structure is that there is insufficient space between the seats. Since the locks extend to the top of the seats through the gap between the seats, if two adjacent locks are rotatingly connected to the base, the gap between the two seats will become larger. For most small cars, the space for the three seats in the back row is not large. Therefore, it is not advisable to use rotating connections for two adjacent locks.

[0018] The other lock of this design still maintains a drawstring, which can be pulled out from the gap between the two seats, and the seat can be deformed. Therefore, in this design, the cooperation of the drawstring and the rotating connection takes into account the comfort and space of the rear seat.

[0019] (2) The wire sleeve fixes the two wire bundles together for easy installation and reduces the occurrence of messy wire bundles.

[0020] (3) The perforated design requires the cable harness to be routed underneath the second vertical plate. This is to prevent the cable harness from tilting up when it is not properly installed. If the second lock is rotated downward, it will hit the tilted cable harness. This design plans the path of the cable harness so that the two will not collide with each other, which can better protect the cable harness. The cable harness is a signal line, and the opening and closing state of the feedback lock is monitored.

[0021] (4) The purpose of the elastic band is to ensure that the first buckle can be tightly positioned between the two seats when it is idle, because the pulling effect of the elastic force prevents the first buckle from swinging.

[0022] (5) The design of the limiting ring allows the first lock buckle to be pulled more smoothly, because the second vertical plate extends along the gap between the two seats, and the drawstring needs to be pulled between the gap between the two seats. Therefore, the design of the limiting ring allows the drawstring to be extended and moved more smoothly between the gap between the two seats.

[0023] When the first lock buckle is pulled, the belt body of the drawstring is subjected to force on the first vertical plate, and now due to the design of the limiting ring, the force points of the drawstring are changed to the first vertical plate and the limiting ring, making the connection between the drawstring and the first vertical plate more stable; if the drawstring is subjected to a huge instantaneous pulling force, the drawstring will act on the limiting ring first, and the separation of the limiting ring and the second vertical plate will offset part of the pulling force, making the pulling force between the drawstring and the first vertical plate smaller, so that the drawstring is firmly installed on the first vertical plate, thereby improving the safety performance of the safety belt.

[0024] (6) The base is in the shape of a concave letter. Firstly, it is to increase the structural strength of the base. Because the metal plate is bent on both sides to form a more solid concave letter, this is to ensure that the safety lock is firmly connected. Secondly, the two ends of the protrusion serve as the extension of the connecting piece, which provides a more convenient installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of Example 1;

[0026] Figure 2 is a schematic diagram of the connection relationship between the rotating shaft and the second vertical plate in Example 1;

[0027] Figure 3 is a schematic diagram of the positional relationship of the perforations on the second vertical plate in Example 2;

[0028] Figure 4 is a schematic diagram of the position of the wire sleeve at the perforation in Example 2;

[0029] Figure 5 is a schematic diagram of the position of the limiting ring on the second vertical plate in Example 3;

[0030] Figure 6 is a top view of the metal base in Example 4;

[0031] Figure 7 It is a left view of the metal base in Example 4;

[0032] Figure 8 It is a left view of the folded metal base in Example 4.

[0033] In the figure:

[0034] 1. Metal base; 11. First vertical plate; 12. Second vertical plate; 13. Bottom plate;

[0035] 21. First lock buckle; 22. Second lock buckle;

[0036] 31. Drawstring; 32. Elastic belt; 33. Fixing belt;

[0037] 41. rotating shaft; 42. torsion spring;

[0038] 51. No. 1 cable harness; 52. No. 2 cable harness; 53. Cable sleeve; 54. Buckle; 55. Perforation;

[0039] 6. Limiting ring;

[0040] 71. Fixed plate; 72. Movable plate; 73. Articulated shaft; 74. Fixed hole; 75. Bolt; 76. Oval hole; 77. Nut; 78. Articulated rod; 79. Bolt hole. DETAILED DESCRIPTION

[0041] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0042] Embodiment 1, a rear seat lock buckle of a car, referring to Figure 1-Figure 2 , comprising a metal base 1, the metal base 1 is an aluminum alloy base. The metal base 1 comprises a bottom plate 13 and a first vertical plate 11 and a second vertical plate 12 fixed on both sides of the bottom plate 13, and the structure of the metal base 1 is a concave structure.

[0043] The first vertical plate 11 is fixed with a drawstring 31, and the drawstring 31 is fixed with a first lock 21; the drawstring 31 includes an elastic band 32 located between, and fixing bands 33 are fixed at both ends of the elastic band 32; when the first lock 21 is installed on the vehicle seat, the drawstring 31 is in a stretched state, and the first lock 21 can be tightly clamped between the two seats. The maximum stretching amount of the drawstring 31 is 5cm. The 5cm spacing allows the user to pull out the first lock 21, so that the first lock 21 and the second lock 22 are separated. And the 5cm telescopic spacing is small, and the safety belt can still provide good protection for the user.

[0044] The second vertical plate 12 is hinged with a second lock buckle 22 that rotates vertically. A rotating shaft 41 is provided between the second vertical plate 12 and the second lock buckle 22. The rotating shaft 41 is sleeved with a torsion spring 42 that drives the second cable to rotate upward. The first lock buckle 21 is connected to a No. 1 harness 51. The second lock buckle 22 is connected to a No. 2 harness 52. The No. 1 harness 51 and the No. 2 harness 52 are fixed together. The No. 1 harness 51 and the No. 2 harness 52 are sleeved with a wire sleeve 53 for fixing the two. The wire sleeve 53 is a plastic sleeve.

[0045] The second vertical plate 12 is fixed with a buckle 54 for positioning the wire sleeve 53. The wire sleeve 53 can be fixed by the snapping position of the buckle 54 to prevent the wire sleeve 53 from shaking and causing confusion.

[0046] Embodiment 2, a rear seat lock buckle for a car, which is different from Embodiment 1, referring to Figure 3-Figure 4 The second vertical plate 12 has a through hole 55 , and the wire sleeve 53 passes through the second vertical plate 12 through the through hole 55 ; the through hole 55 is located below the second vertical plate 12 , and the second locking buckle 22 is located above the second vertical plate 12 .

[0047] Embodiment 3, a rear seat lock buckle of a car, which is different from Embodiment 1 or Embodiment 2, referring to Figure 5 The second vertical plate 12 is fixed with a limiting ring 6 , the limiting ring 6 is arranged facing the first vertical plate 11 , and the pull belt 31 is passed through the limiting ring 6 .

[0048] Embodiment 4, a rear seat lock buckle for automobiles, which is different from Embodiment 1 or Embodiment 2 or Embodiment 3, as shown in FIG. Figure 6 , Figure 7 and Figure 8 The bottom plate 13 includes two fixed plates 71 and two movable plates 72; the first vertical plate 11 and the second vertical plate 12 are each fixed with a fixed plate 71, the fixed plate 71 and a movable plate 72 are hinged, and the fixed plate 71 and the movable plate 72 are rotationally connected through a hinge rod 78; the two movable plates 72 are provided with hinge shafts 73 for folding; therefore, the two movable plates 72 can be folded vertically.

[0049] The fixing plate 71 is provided with a fixing hole 74 , through which the fixing plate 71 is mounted on the chassis frame of the automobile.

[0050] Due to the differences in the models of automobiles, the adaptability of the bottom plate 13 when installed on different automobiles is relatively poor, because different automobile chassis require installation dimensions of different widths.

[0051] In this design, the installation spacing between the fixing holes 74 can be adjusted by folding the two movable plates 72 to achieve the purpose of adapting to different automobile installation sizes.

[0052] The two folded movable panels 72 need to be connected by bolts 75, so that the movable panels 72 are difficult to unfold automatically, which is a consideration for safety performance.

[0053] The bolt 75 is threadedly connected to the bolt 75 hole to fix the bolt 75 and the movable plate 72. The other end of the bolt 75 passes through the oval hole 76. Because the movable plate 72 has different folding angles, the bolt 75 will be tilted. Therefore, the oval hole 76 and the bolt 75 are adapted to make it easier for the bolt 75 to pass through the other movable plate 72.

[0054] The threaded end of the bolt 75 is fastened by the nut 77 , so that the nut 77 and the head of the bolt 75 abut against the outer sides of the two movable plates 72 and fasten them.

[0055] The two movable plates 72 are provided with oval holes 76, through which bolts 75 for fixing the movable plates 72 in the folded state are passed. The folding plates are abutted against nuts 77 installed on the bolts 75. This design makes it difficult for the two movable plates 72 to unfold, thereby improving the structural length and stability of the entire base plate 13. On the basis of ensuring safety, the base plate 13 can be adapted to the installation stations of different vehicle models.

[0056] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A rear seat lock for a car, comprising a metal base (1), characterized in that: The metal base (1) comprises a bottom plate (13) and a first vertical plate (11) and a second vertical plate (12) fixed on both sides of the bottom plate (13); the first vertical plate (11) is fixed with a drawstring (31), and the drawstring (31) is fixed with a first lock buckle (21); the second vertical plate (12) is hinged with a second lock buckle (22) that rotates vertically; a rotating shaft (41) is provided between the second vertical plate (12) and the second lock buckle (22); the rotating shaft (41) is sleeved with a torsion spring (42) that drives the second cable to rotate upward; the first lock buckle (21) is connected to a first cable bundle (51), and the second lock buckle (22) is connected to a second cable bundle (52); the first cable bundle (51) and the second cable bundle (52) are fixed together.

2. The rear seat lock buckle of a car according to claim 1, characterized in that: The first wire harness (51) and the second wire harness (52) are sleeved with wire sleeves (53) for fixing the two.

3. The rear seat lock buckle of a car according to claim 2, characterized in that: The second vertical plate (12) is fixed with a buckle (54) for positioning the wire sleeve (53).

4. The rear seat lock buckle of a car according to claim 3, characterized in that: The second vertical plate (12) is provided with a through hole (55), and the wire sleeve (53) passes through the second vertical plate (12) through the through hole (55); The through hole (55) is located below the second vertical plate (12), and the second lock buckle (22) is located above the second vertical plate (12).

5. The rear seat lock buckle of a car according to claim 4, characterized in that: The drawstring (31) comprises an elastic belt (32) located therebetween, and fixing belts (33) are fixed to both ends of the elastic belt (32).

6. The rear seat lock buckle of a car according to claim 5, characterized in that: The second vertical plate (12) is fixed with a limiting ring (6), the limiting ring (6) is arranged facing the first vertical plate (11), and the drawstring (31) is passed through the limiting ring (6).

7. The rear seat lock buckle of a car according to claim 1, characterized in that: The metal base (1) is an aluminum alloy base.

8. The rear seat lock buckle of a car according to claim 7, characterized in that: The bottom plate (13) comprises two fixed plates (71) and two movable plates (72); the first vertical plate (11) and the second vertical plate (12) are each fixed with a fixed plate (71); the fixed plate (71) and a movable plate (72) are hingedly connected; the two movable plates (72) are provided with hinge shafts (73) for folding; and the fixed plate (71) is provided with a fixing hole (74).

9. The rear seat lock buckle of a car according to claim 8, characterized in that: One movable plate (72) is threadedly connected with a bolt (75), and the other movable plate (72) is provided with a waist-shaped hole (76), the bolt (75) is passed through the waist-shaped hole (76), and the folded movable plate (72) is abutted against a nut (77) installed on the bolt (75).

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