Anti-collision seat lock of automobile seat
By using a plastic coating and a plastic block in the seat lock, combined with a torque spring and a tension spring, the problem of abnormal noise caused by the seat lock during driving is solved, and the effect of reducing abnormal noise is achieved.
Patent Information
- Application Number
- CN202423021752.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In the prior art, when the seat lock is in motion, the lock tongue and the lock buckle, as well as the locking plate and the lock tongue, may collide and produce abnormal noise.
A plastic overmolding layer is used to cover part of the lock blade and lock body structure. The locking plate and lock blade are driven to rotate by a torque spring and a tension spring to avoid direct collision. Plastic blocks and overmolding blocks are used to reduce abnormal noise caused by collision.
It effectively reduces abnormal noises from the seat lock during driving. Through the design of the plastic coating and plastic block, it reduces direct collisions between the lock buckle and the lock leaf and cover, thus reducing abnormal noises.
Smart Images
Figure CN223355449U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile seat lock production, in particular to an anti-collision seat lock for an automobile seat. Background Art
[0002] A vehicle seat includes a seat cushion serving as a seat surface and a seat back serving as a backrest. The seat back can be tilted between an upright position for normal seating and a flat position for folding forward for cargo loading. In the upright position, a seat lock device built into the seat back engages with a latch fixed to the vehicle body, stably maintaining the locked position.
[0003] In the prior art, the lock tongue and lock buckle of the seat lock are made of all-metal material. When locking, first, the lock buckle collides with the lock tongue, which will make an abnormal noise. Secondly, the lock tongue collides with the locking plate of the seat lock, which will also make an abnormal noise. During driving, the vehicle as a whole is in a relatively shaking state. Therefore, during driving, the lock tongue and lock buckle, as well as the locking plate and lock tongue, will collide and produce abnormal noise. For this reason, an anti-collision seat lock for a car seat is proposed, which aims to solve the problem in the prior art that the lock tongue and lock buckle, as well as the locking plate and lock tongue, will collide and produce abnormal noise during driving. Utility Model Content
[0004] The utility model aims to provide an anti-collision seat lock for a car seat, aiming to solve the problem in the prior art that during the driving process of the seat lock, the lock tongue and the lock buckle, as well as the locking plate and the lock tongue, may collide and produce abnormal noise.
[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:
[0006] A car seat anti-collision seat lock includes a lock body, a cover plate, a first locking plate and a lock leaf. A torque spring is provided between the first locking plate and the lock body. The lock leaf and the first locking plate are both rotatably connected to the lock body. A plastic block is provided on the lock body, a plastic-coated block is provided on the cover plate, an insertion groove is provided on the lock leaf, a plastic-coated layer is provided on the outer wall of the lock leaf, and the plastic-coated layer is covered on the insertion groove. The first locking plate is driven to rotate toward the lock leaf and abut against the lock leaf by the torque spring.
[0007] Preferably, a second locking plate is further included, and a first rivet and a second rivet are installed on the lock body. The second locking plate and the first locking plate are both rotatably connected to the first rivet, and the locking leaf is rotatably connected to the second rivet.
[0008] Preferably, an abutment rod is fixedly mounted on the outer wall of the second locking piece, a tension spring is connected to the abutment rod, and one end of the tension spring is connected to the lock leaf.
[0009] Preferably, the locking leaf is embedded in the plastic coating layer, an abutment portion is provided on the outer wall of the locking leaf, and the plastic coating layer protrudes from the abutment portion.
[0010] Preferably, a locking protrusion is provided on the outer wall of the first locking piece, and a locking piece is rotatably provided on the end of the first locking piece.
[0011] In the above technical solution, the utility model provides an anti-collision seat lock for a car seat, which has the following beneficial effects:
[0012] In this utility model, the first locking piece is rotated toward the lock leaf by a torque spring, ensuring that the lock leaf can abut against the first locking piece and remain locked after rotation. A plastic layer is provided on the outer wall of the lock leaf, and the insertion groove provided on the lock leaf is covered with the plastic layer, which can contact the lock buckle when the lock buckle is inserted into the insertion groove, preventing the lock leaf from directly colliding with the lock buckle and making abnormal noise. At the same time, after locking, the lock buckle is still in contact with the plastic layer when it is located inside the insertion groove, and thus no abnormal noise of collision is emitted during driving. The plastic block provided on the lock body and the plastic block provided on the cover plate can reduce the abnormal noise of collision when the lock buckle collides with the lock body and the cover plate. After locking, the lock buckle is also in contact with the plastic block and the plastic block, and no abnormal noise of collision is emitted during driving, thereby reducing the abnormal noise of the seat lock during driving. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0014] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;
[0015] Figure 2 A schematic diagram of the unlocked state structure provided by an embodiment of the present utility model;
[0016] Figure 3 A schematic diagram of a tension spring connection structure in a locked state provided by an embodiment of the present utility model;
[0017] Figure 4 A schematic diagram of the plastic block installation structure provided by an embodiment of the present utility model;
[0018] Figure 5 A schematic diagram of the locking state structure provided by an embodiment of the present utility model;
[0019] Figure 6 This is a schematic diagram of the assembly structure provided by an embodiment of the utility model.
[0020] Description of reference numerals:
[0021] 1. Lock body; 11. Limiting slot; 12. Plastic block; 2. Cover plate; 21. Plastic-coated block; 3. First locking piece; 31. Locking protrusion; 32. Positioning piece; 33. Abutment surface; 4. Lock leaf; 41. Insertion slot; 42. Plastic-coated layer; 43. Abutment portion; 5. Torque spring; 6. Second locking piece; 7. First rivet; 8. Second rivet; 9. Abutment rod; 10. Tension spring. DETAILED DESCRIPTION
[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0023] See also Figure 1 —6. A car seat anti-collision seat lock comprises a lock body 1, a cover plate 2, a first locking plate 3 and a lock leaf 4, a first torque spring 5 being provided between the lock leaf 4 and the lock body 1, a second torque spring 5 being provided between the first locking plate 3 and the lock body 1, the lock leaf 4 and the first locking plate 3 being rotatably connected to the lock body 1, a plastic block 12 being provided on the lock body 1, a plastic overmolding block 21 being provided on the cover plate 2, an insertion slot 41 being provided on the lock leaf 4, a plastic overmolding layer 42 being provided on the outer wall of the lock leaf 4, and the plastic overmolding layer 42 being covered on the insertion slot 41, the lock leaf 4 and the first locking plate 3 being driven to rotate towards each other by the first torque spring 5 and the second torque spring 5 respectively.
[0024] A first rivet 7 and a second rivet 8 are provided on the lock body 1. The cover plate 2 is connected to the lock body 1 through the first rivet 7 and the second rivet 8. The first locking piece 3 is rotatably connected to the outer wall of the first rivet 7, and the lock leaf 4 is rotatably connected to the second rivet 8. A torque spring 5 is provided between the first locking piece 3 and the lock body 1. A limiting ring is sleeved on the outer wall of the first rivet 7 to fix the torque spring 5 in the axial direction of the first rivet 7. The first locking piece 3 can be driven to rotate to one side by the elasticity of the torque spring 5 itself. An insertion groove 41 is provided on the outer wall of one side of the lock leaf 4, and a plastic layer 42 is coated on the outside of the lock leaf 4. A plastic block 21 is fixedly provided on the cover plate 2, and a plastic block 12 is fixedly provided on the outer wall of the lock body 1. Specifically, the plastic layer 42 is coated on the insertion groove 41, so that when in use, When the lock buckle is inserted into the insertion slot 41, the lock buckle first contacts the overmolded layer 42 to prevent the lock buckle from directly contacting the metal lock leaf 4, eliminating the abnormal sound when the lock buckle collides with the lock leaf 4. The lock leaf 4 is pushed to rotate by the lock buckle and the insertion slot 41, so that the lock leaf 4 can be abutted against the first locking piece 3 to complete the locking of the lock leaf 4. The overmolded block 21 is an "L"-shaped structure as a whole. The overmolded block 21 with an "L"-shaped structure can cover the two side edges on the cover plate 2, and then, after the lock leaf 4 is locked, it can prevent the lock buckle from directly contacting and colliding with the cover plate 2 to produce abnormal sound. At the same time, a plastic block 12 is fixedly installed on the outer wall of the lock body 1. The plastic block 12 is riveted to the lock body 1. After the lock leaf 4 is locked, it contacts the lock buckle through the plastic block 12 to prevent the lock buckle from directly contacting and colliding with the lock body 1 to produce abnormal sound.
[0025] Furthermore, it also includes a second locking piece 6, which is rotatably connected to the first rivet 7. Figure 3 As shown, an abutment rod 9 is fixedly installed on the outer wall of the second locking piece 6, and a tension spring 10 is provided on the abutment rod 9. One end of the tension spring 10 away from the abutment rod 9 is connected to the lock leaf 4, and the two ends of the tension spring 10 are respectively connected to the abutment rod 9 and the lock leaf 4. The second locking piece 6 and the lock leaf 4 are elastically driven by the tension spring 10 to rotate toward each other. The second locking piece 6 abuts against the outer wall of the first locking piece 3 through the abutment rod 9 provided on the outer wall, and drives the first locking piece 3 to keep rotating, so that In order to enable the first locking piece 3 to rotate towards the locking leaf 4, an abutment portion 43 is provided on the outer wall of the locking leaf 4, and the locking leaf 4 is partially embedded in the plastic coating layer 42. Specifically, the plastic coating layer 42 is made of plastic, and an abutment portion 43 is provided on the outer wall of the locking leaf 4. The abutment portion 43 can abut against the first locking piece 3 and the second locking piece 6. The plastic coating layer 42 protrudes from the abutment portion 43 so that the outer wall of the tension spring 10 contacts the plastic coating layer 42, thereby preventing the tension spring 10 from interfering with the first locking piece 3.
[0026] The tension spring 10 can always drive the second locking piece 6 and the first locking piece 3 to maintain contact with the outer wall of the lock leaf 4, thereby reducing the noise generated by the collision between the first locking piece 3, the second locking piece 6 and the lock leaf 4 during driving.
[0027] Further, such as Figure 5 As shown, a locking protrusion 31 is provided on the outer wall of the first locking piece 3, which is used to abut against the abutment 43 on the outer wall of the lock leaf 4 to limit the rotation of the lock leaf 4. A locking member 32 is rotatably connected to the outer wall of the end of the first locking piece 3, which can be connected to a component such as a buckle to facilitate unlocking by the user. A bend is provided at the end of the lock body 1, and a limit card slot 11 is provided on the bend. The limit card slot 11 can abut against the connecting rod on the buckle to limit the rotation angle of the connecting rod. An abutment surface 33 is provided on the outer wall of the first locking piece 3, through which it can abut against the lock leaf 4 in the unlocked state.
[0028] The first locking piece 3 and the lock leaf 4 are respectively kept in rotation toward each other by the first torque spring 5 and the second torque spring 5 to ensure that the lock leaf 4 can abut against the first locking piece 3 and keep locked after rotation. A plastic coating 42 is provided on the outer wall of the lock leaf 4. The plastic coating 42 and the insertion groove 41 provided on the lock leaf 4 are covered by the plastic coating 42, which can contact the lock buckle when the lock buckle is inserted into the insertion groove 41 to prevent the lock leaf 4 from directly colliding with the lock buckle and making abnormal noise. At the same time, after locking, the lock buckle is still in contact with the plastic coating 42 when it is located inside the insertion groove 41, and thus no abnormal collision noise is made during driving. The plastic block 12 provided on the lock body 1 and the plastic coating 21 provided on the cover plate 2 can reduce the abnormal collision noise when the lock buckle collides with the lock body 1 and the cover plate 2. After locking, the lock buckle is also in contact with the plastic block 12 and the plastic coating 21, and no abnormal collision noise is made during driving, thereby reducing the abnormal noise of the seat lock during driving.
[0029] The elastic coefficients of the torque spring 5 and the tension spring 10 mentioned in the article meet the technical requirements of the technical solution of the present utility model.
[0030] Those skilled in the art will appreciate that other similar connection methods can also implement the present invention, such as welding, bonding, or screwing.
[0031] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A car seat anti-collision seat lock, comprising a lock body (1), a cover plate (2), a first locking plate (3) and a lock leaf (4), wherein a torque spring (5) is provided between the first locking plate (3) and the lock body (1), characterized in that: The locking leaf (4) and the first locking piece (3) are both rotatably connected to the lock body (1); a plastic block (12) is provided on the lock body (1); a plastic-coated block (21) is provided on the cover plate (2); an insertion groove (41) is provided on the locking leaf (4); a plastic-coated layer (42) is provided on the outer wall of the locking leaf (4); the plastic-coated layer (42) covers the insertion groove (41); and the first locking piece (3) is driven to rotate toward the locking leaf (4) and abut against the locking leaf (4) by the torque spring (5).
2. The anti-collision seat lock for a car seat according to claim 1, characterized in that: The invention also includes a second locking plate (6), a first rivet (7) and a second rivet (8) are installed on the lock body (1), the second locking plate (6) and the first locking plate (3) are both rotatably connected to the first rivet (7), and the locking leaf (4) is rotatably connected to the second rivet (8).
3. The anti-collision seat lock for a car seat according to claim 2, characterized in that: An abutment rod (9) is fixedly mounted on the outer wall of the second locking piece (6), a tension spring (10) is connected to the abutment rod (9), and one end of the tension spring (10) is connected to the locking leaf (4).
4. The anti-collision seat lock for a car seat according to claim 1, characterized in that: The locking leaf (4) is embedded in the plastic coating layer (42); an abutment portion (43) is provided on the outer wall of the locking leaf (4); and the plastic coating layer (42) protrudes from the abutment portion (43).
5. The anti-collision seat lock for a car seat according to claim 1, characterized in that: A locking protrusion (31) is provided on the outer wall of the first locking piece (3), and a locking piece (32) is rotatably provided at the end of the first locking piece (3).