A knob type locking mechanism suitable for narrow space of a car seat

Abstract

The utility model discloses a knob formula locking mechanism suitable for the narrow space of automobile seat, a plurality of locking female buckles are evenly arranged on the side of inner rail; the bottom of outer rail is equipped with handle fixed plate, and the handle fixed plate is "L" type structure, and the long handle of "L" type is welded at the bottom of outer rail; the short handle of "L" type is equipped with three upward supporting parts, and the inner end of handle is also sleeved with first torsional spring; the rotation of handle can drive the movement of push rod, and first torsional spring provides the rebound power for handle at this time; the bottom of outer rail is also equipped with locking fixed plate; wherein the inner end of locking piece is equipped with locking male buckle corresponding with locking female buckle. The utility model discloses pure mechanical design, and the movement of two-stage lever is driven through handle rotation, wherein the first stage is the movement of handle to push rod, and the second stage is the movement of push rod to locking piece, realizes the locking and opening of locking male buckle and locking female buckle, is simple, quick and convenient, and is suitable for the narrow space of seat and slide rail.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically a knob-type locking mechanism suitable for the confined space of an automotive seat. Background Technology

[0002] The flexible adjustment of car seats affects the comfort of drivers and passengers. The movement and locking of the seat rails can adapt to adjust the space for drivers and passengers, thus improving comfort.

[0003] Locking mechanisms should not only be simple and convenient, but also applicable to various scenarios. In order to provide more room for movement for drivers and passengers, the overall seat needs to be optimized. However, the space that can be optimized will inevitably reduce the adjustment space of the seat, so the narrow gap after the car seat is adjusted is particularly important.

[0004] Authorization announcement number: CN 116901796 B discloses a car seat slide rail structure.

[0005] Authorization announcement number: CN110239401 B discloses a crank-rocker type slide rail locking mechanism.

[0006] The two patents mentioned above apply to seats with normal layouts. When the sliding space of the seat is small, the limitation on adjusting the position will not be used. If the size changes, the strength of the slide rail will be sacrificed, and the safety performance cannot be guaranteed. Utility Model Content

[0007] In order to solve the locking problem in the confined space of a car seat without changing the strength of the car slide rail, this utility model provides a knob-type locking mechanism suitable for the confined space of a car seat.

[0008] Therefore, the technical solution of this utility model is a knob-type locking mechanism suitable for the narrow space of a car seat, including an inner rail and an outer rail. The inner rail is set inside the outer rail, and the inner rail protrudes from the outer rail, so that the inner rail moves along the outer rail. The upper part of the inner rail is connected to the car seat frame, and the lower part of the outer rail is connected to the car cabin. The feature is that multiple locking nuts are evenly provided on one side of the inner rail. A handle fixing plate is provided at the bottom of the outer rail. The handle fixing plate has an "L" shaped structure, and its "L" shaped long handle is welded to the bottom of the outer rail; The "L"-shaped short handle has three upward-facing support parts. The first and second support parts are parallel to the outer rail, while the third support part is perpendicular to the outer rail. The first and second support parts also have a first through hole and a second through hole, through which the handle is inserted. The inner end of the handle is also fitted with a first torsion spring; The third support part is provided with a third through hole, wherein the third through hole is an oblong hole and a lever is provided in the oblong hole. The lever is welded to the lower part of the handle between the first through hole and the second through hole, so that the rotation of the handle can drive the movement of the lever. At this time, the first torsion spring provides the handle with the rebound force. A locking plate is also provided at the bottom of the outer rail; The locking fixing plate is provided with a hinge hole, and a rotating shaft is provided inside the hinge hole. A locking piece is welded on the rotating shaft in the middle of the hinge hole, and the inner end of the locking piece is provided with a locking sub-buckle corresponding to the locking female buckle. The outer end of the locking plate is positioned below the lever; A second torsion spring is also fitted at the outer end of the rotating shaft.

[0009] Effects and principles: In this utility model, the locking tab on the locking piece corresponds to the locking nut on the inner rail, thus forming a locking relationship between the inner rail and the outer rail. The handle drives the lever to provide power to the locking plate through the oblong hole, so that the locking plate can move up and down to lock and unlock the locking male and female latches; The first torsion spring provides the return force to the handle, and the second spring provides the return force to the locking plate; The third through hole is a waist-shaped hole that provides movement space for the lever, enabling the lever to provide power to the locking plate; This utility model is a purely mechanical design. The rotation of the handle drives a two-stage lever motion. The first stage is the movement of the handle on the lever, and the second stage is the movement of the lever on the locking plate, which realizes the locking of the locking male and female latches. It is simple, quick and convenient, and suitable for the narrow space of seats and slide rails.

[0010] The further improvement is that the first torsion spring is fixed to the inner end of the handle; the other end of the first torsion spring is locked in the root of the third support and the handle fixing plate to form torque, and the first torsion spring provides the handle with rebound force. The connection structure between the inner end of the handle and the first torsion spring is an irregular structure.

[0011] The effect is that the first torsion spring provides the handle with a rebound force; the irregular structure is for fixing the first torsion spring, which is simple and convenient.

[0012] Further improvements include: the second torsion spring is fixed to the outer end of the rotating shaft, and the other end of the second torsion spring is engaged with the locking plate to generate torque; the connection structure between the outer end of the rotating shaft and the second torsion spring is an irregular structure; the second spring provides the locking plate with rebound force.

[0013] The effect is that the second spring provides the locking plate with rebound force, and the irregular structure is for fixing the second torsion spring, which is simple and convenient.

[0014] A further improvement is that the irregular structure is a semi-circular punched structure.

[0015] The advantages are: the semi-circular structure is the easiest to achieve, as it can be punched, and the torsion spring is easy to assemble, making it simple and convenient.

[0016] A further improvement is that a guide groove is provided on the side of the outer rail corresponding to the locking plate.

[0017] The effect is that the guide groove provides a space for the locking plate to move, making it easier for the locking plate to lock the inner rail and prevent interference.

[0018] A further improvement is that the handle fixing plate and the three upward support parts are an integral stamping structure, that is, the first support part, the second support part, the third support part and the handle fixing plate are an integral stamping structure.

[0019] The benefits are: the one-piece stamping structure solves the product's process problems, and the one-time molding greatly shortens the processing time, making it convenient and fast.

[0020] A further improvement is that the handle is either "L" shaped, with the outer end of the "L" shaped handle facing the same direction as the outer rail, and covered with a rubber sleeve.

[0021] The effect is that the "L" shape of the handle extends its control length, further powering the lever.

[0022] A further improvement is that a first retainer and a second retainer are provided inside the outer rail and between the inner rail.

[0023] The effect is that the first and second cages not only allow the inner rail to slide smoothly within the outer rail, but also limit its displacement space, preventing cross-flow and abnormal noise.

[0024] A further improvement is that the first and second retainers include a "W"-shaped structural frame, wherein multiple steel balls are provided on both sides of the "W"-shaped structural frame and a ball bearing is provided in the middle.

[0025] The effect is that the "W" shaped frame structure facilitates the installation of the inner and outer rails, while the steel balls facilitate the movement of the inner rail inside the outer rail. The rolling balls not only facilitate movement but also provide support. Beneficial effects

[0026] This utility model is a purely mechanical design. It uses a two-stage lever motion with a handle and knob. The first stage is the movement of the handle on the lever, and the second stage is the movement of the lever on the locking plate. This allows the locking of the male and female locking buckles to be locked and unlocked. It is simple, quick and convenient, and suitable for the narrow spaces of seats and slide rails. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 yes Figure 1 A schematic diagram of its external shape; Figure 3 yes Figure 2 Top view of the structure; Figure 4 yes Figure 1 An explosion diagram; Figure 5 yes Figure 4 A three-dimensional schematic diagram of the first cage.

[0028] The diagram is marked as follows: 1 is the inner rail, 101 is the locking nut, 2 is the outer rail, 201 is the guide groove, 3 is the first retainer, and 4 is the second retainer; 5 is the handle fixing plate, 501 is the first support part, 502 is the second support part, 503 is the third support part, 504 is the first through hole, 505 is the second through hole, and 506 is the third through hole. 6 is the handle, 7 is the first torsion spring, 8 is the lever, 9 is the locking plate, 10 is the hinge hole, 11 is the rotating shaft, 12 is the locking plate, 13 is the locking buckle, and 14 is the second torsion spring. 15 is a "W" shaped structural frame, 16 is a steel ball, and 17 is a ball bearing. Detailed Implementation

[0029] This utility model is as follows Figure 1-5 As shown.

[0030] A knob-type locking mechanism suitable for the confined space of a car seat includes an inner rail 1 and an outer rail 2. The inner rail 1 is disposed inside the outer rail 2, and the inner rail 1 protrudes from the outer rail 2, allowing the inner rail 1 to move along the outer rail 2. The upper part of the inner rail 1 is connected to the car seat frame, and the lower part of the outer rail 2 is connected to the car cabin. A plurality of locking nuts 101 are evenly provided on one side of the inner rail 1. A handle fixing plate 5 is provided at the bottom of the outer rail 2. The handle fixing plate 5 has an "L" shaped structure, and its "L" shaped long handle is welded to the bottom of the outer rail 2; The "L"-shaped short handle has three upward-facing support parts. The first support part 501 and the second support part 502 are arranged parallel to the outer rail 2, while the third support part 503 is arranged perpendicular to the outer rail 2. The first support part 501 and the second support part 502 are also provided with a first through hole 504 and a second through hole 505, through which the handle 6 is inserted. The inner end of the handle 6 is also fitted with a first torsion spring 7; The third support part 503 is provided with a third through hole 506, wherein the third through hole 506 is an oblong hole and a lever 8 is provided in the oblong hole. The lever 8 is welded to the lower part of the middle of the handle 6 between the first through hole 504 and the second through hole 505, so that the rotation of the handle 6 can drive the movement of the lever 8. At this time, the first torsion spring 7 provides the handle 6 with the rebound force. A locking plate 9 is also provided at the bottom of the outer rail 2; The locking fixing plate 9 is provided with a hinge hole 10, and a rotating shaft 11 is provided inside the hinge hole 10. A locking piece 12 is welded on the rotating shaft 11 in the middle of the hinge hole 10. The inner end of the locking piece 12 is provided with a locking sub-buckle 13 corresponding to the locking female buckle 101. The outer end of the locking piece 12 is correspondingly positioned below the lever 8; The outer end of the rotating shaft 11 is also fitted with a second torsion spring 14.

[0031] Effects and principles: In this utility model, the locking buckle 13 on the locking piece 12 corresponds to the locking female buckle 101 of the inner rail 1, thus forming a locking relationship between the inner rail 1 and the outer rail 2. The handle 6 drives the lever 8 to provide power to the locking plate 12 through the oblong hole, so that the locking plate 12 can move up and down to lock and unlock the locking male buckle 13 and the locking female buckle 101. The first torsion spring 7 provides the return force to the handle 6, and the second spring 14 provides the return force to the locking plate 12; The third through hole 506 is an oblong hole that provides movement space for the lever 8, so that the lever 8 can provide power to the locking piece 12; This utility model is a purely mechanical design. The movement of the handle is driven by rotating the handle 6 to drive the movement of the two-stage lever. The first stage is the movement of the handle 6 to the lever 8, and the second stage is the movement of the lever 8 to the locking piece 12, so as to lock and unlock the locking male buckle 13 and the locking female buckle 101. It is simple, quick and convenient, and suitable for the narrow space of seats and slide rails.

[0032] The first torsion spring 7 is fixed to the inner end of the handle 6; the other end of the first torsion spring 7 is locked in the third support 503 and the root of the handle fixing plate 5 to form torque, and the first torsion spring 7 provides the handle 6 with rebound force. The connection structure between the inner end of the handle 6 and the first torsion spring 7 is an irregular structure.

[0033] The first torsion spring 7 provides the handle 6 with a rebound force; the irregular structure is for fixing the first torsion spring 7, which is simple and convenient.

[0034] The second torsion spring 14 is fixed to the outer end of the rotating shaft 11, and the other end of the second torsion spring 14 is engaged with the locking plate 9 to form torque; the connection structure between the outer end of the rotating shaft 11 and the second torsion spring 14 is an irregular structure; the second spring 24 provides the locking plate 12 with the rebound force.

[0035] The second spring 14 provides the locking plate 12 with a rebound force. The irregular structure is for fixing the second torsion spring 14, which is simple and convenient.

[0036] The irregular structure is a semi-circular punched structure.

[0037] The semi-circular structure is the easiest to implement, as it can be achieved by punching. Moreover, the assembly of the second torsion spring 14 is convenient and simple.

[0038] A guide groove 201 is provided on the side of the outer rail 2 corresponding to the locking plate.

[0039] The effect is that the guide groove 201 provides a space for the locking piece 12 to move, making it easier for the locking piece 12 to lock the inner rail 1 and prevent interference.

[0040] The handle fixing plate 5 and the three upward support parts are an integral stamping structure, that is, the first support part 501, the second support part 502, the third support part 503 and the handle fixing plate 5 are an integral stamping structure.

[0041] The one-piece stamping structure solves the product's process problems, and the one-time molding also greatly shortens the processing time, making it convenient and fast.

[0042] The handle 6 is either "L" shaped, with the outer end of the "L" shaped handle facing the same direction as the outer rail 2, and covered with a rubber sleeve.

[0043] The "L"-shaped design of handle 6 extends its control length, further powering the lever.

[0044] A first retainer 3 and a second retainer 4 are also provided inside the outer rail 2 and between the inner rail 1.

[0045] The arrangement of the first retainer 3 and the second retainer 3 not only allows the inner rail 1 to slide smoothly within the outer rail 2, but also limits its displacement space to prevent cross-movement and abnormal noise.

[0046] The first retainer 3 and the second retainer 3 include a "W" shaped structural frame 15, wherein multiple steel balls 16 are provided on both sides of the "W" shaped structural frame and a ball bearing 17 is provided in the middle.

[0047] The "W" shaped frame structure facilitates the installation of the inner and outer rails. At the same time, the steel balls facilitate the movement of the inner rail within the outer rail, and the rolling balls provide support while also enabling movement.

[0048] This utility model is a purely mechanical design. It uses a two-stage lever motion with a knob-type handle 6. The first stage is the movement of the handle 6 to the lever 8, and the second stage is the movement of the lever 8 to the locking piece 11. This achieves the locking of the locking male buckle 13 and the locking female buckle 101. It is simple, quick and convenient, and suitable for the narrow spaces of seats and slide rails.

Claims

1. A knob-type locking mechanism suitable for the confined space of a car seat, comprising an inner rail (1) and an outer rail (2), wherein the inner rail (1) is disposed inside the outer rail (2), and the inner rail (1) protrudes from the outer rail (2), allowing the inner rail (1) to move along the outer rail (2); the upper part of the inner rail (1) is connected to the car seat frame, and the lower part of the outer rail (2) is connected to the car cabin, characterized in that: The inner rail (1) is provided with a plurality of locking nuts (101) evenly on one side. A handle fixing plate (5) is provided at the bottom of the outer rail (2). The handle fixing plate (5) has an "L" shaped structure, and its "L" shaped long handle is welded to the bottom of the outer rail (2). The "L"-shaped short handle has three upward support parts, of which the first support part (501) and the second support part (502) are arranged parallel to the outer rail (2), and the third support part (503) is arranged perpendicular to the outer rail (2); the first support part (501) and the second support part (502) are also provided with a first through hole (504) and a second through hole (505), and the handle (6) is provided through the first through hole (504) and the second through hole (505); The inner end of the handle (6) is also fitted with a first torsion spring (7). The third support part (503) is provided with a third through hole (506), wherein the third through hole (506) is an oblong hole and a lever (8) is provided in the oblong hole. The lever (8) is welded to the lower part of the handle (6) between the first through hole (504) and the second through hole (505), so that the rotation of the handle (6) can drive the movement of the lever (8). A locking plate (9) is also provided at the bottom of the outer rail (2); The locking fixing plate (9) is provided with a hinge hole (10), and a rotating shaft (11) is provided inside the hinge hole (10). A locking piece (12) is welded on the rotating shaft (11) in the middle of the hinge hole (10). The inner end of the locking piece (12) is provided with a locking sub-buckle (13) corresponding to the locking female buckle (101). The outer end of the locking piece (12) is correspondingly positioned below the lever (8); The outer end of the rotating shaft (11) is also fitted with a second torsion spring (14).

2. The rotary locking mechanism for use in confined spaces like car seats according to claim 1, characterized in that: The first torsion spring (7) is fixed to the inner end of the handle (6); the other end of the first torsion spring (7) is locked in the third support (503) and the root of the handle fixing plate (5) to form a torque, and the first torsion spring (7) provides the handle (6) with the rebound force. The connection structure between the inner end of the handle (6) and the first torsion spring (7) is an irregular structure.

3. A rotary locking mechanism suitable for use in confined spaces like car seats according to claim 1, characterized in that: The second torsion spring (14) is fixed to the outer end of the rotating shaft (11), and the other end of the second torsion spring (14) is engaged with the locking plate (9) to form torque; the outer end of the rotating shaft (11) and the connection structure of the second torsion spring (14) are both irregular structures; the second spring (24) provides the rebound force to the locking plate (12).

4. A rotary locking mechanism suitable for use in confined spaces like car seats according to claim 2 or 3, characterized in that: The irregular structure is a semi-circular punched structure.

5. A rotary locking mechanism suitable for use in confined spaces like car seats according to claim 1, characterized in that: A guide groove (201) is provided on the side of the outer rail (2) corresponding to the locking plate.

6. A knob-type locking mechanism suitable for confined spaces in car seats according to claim 1, characterized in that: The handle fixing plate (5) and the three upward support parts are an integral stamping structure, that is, the first support part (501), the second support part (502), the third support part (503) and the handle fixing plate (5) are an integral stamping structure.

7. A rotary locking mechanism suitable for confined spaces in car seats according to claim 1 or 2, characterized in that: The handle (6) is either "L" shaped, with the outer end of the "L" shaped handle facing the same direction as the outer rail (2) and covered with a rubber sleeve.

8. A rotary locking mechanism suitable for confined spaces in car seats according to claim 1, characterized in that: A first retainer (3) and a second retainer (4) are provided inside the outer rail (2) and between the inner rail (1).

9. A rotary locking mechanism suitable for use in confined spaces like car seats according to claim 8, characterized in that: The first retainer (3) and the second retainer (4) include a "W" shaped structural frame (15), wherein multiple steel balls (16) are provided on both sides of the "W" shaped structural frame (15), and a ball bearing (17) is provided in the middle.

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