Seat slide rail locking device
By designing a locking plate, spring, and locking rod structure on the seat slide rail, the problem of impact noise during locking is solved, achieving smooth sliding and high locking strength, thus improving riding comfort.
Patent Information
- Application Number
- CN202520369814.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-05
AI Technical Summary
The existing seat rail locking mechanism produces a noticeable impact sound when locking, causing discomfort to passengers.
A seat slide rail locking device was designed, wherein the folded edges of the lower and upper rails are provided with locking teeth, the locking plate achieves smooth sliding through springs and locking rods, and the spring support and roller structure eliminate vibration. Multiple locking holes are provided on the locking plate to improve locking strength.
It achieves smooth sliding, strong locking, and reliable locking, eliminating impact noise during locking and improving the passenger riding experience.
Smart Images
Figure CN223702355U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to slide rail technical field, especially relate to a seat slide rail locking device. BACKGROUND
[0002] The automobile seat slide rail is used for adjusting the position of the seat, and a locking mechanism is arranged on the manual slide rail, so that the slide rail can be adjusted after the locking mechanism is unlocked.
[0003] The existing locking mechanism is usually locked by the locking part and the tooth window of the lower slide rail (or the upper and lower slide rails), so that the locking of the slide rail is realized, and the locking is accompanied by the impact sound of the locking part and the lower slide rail (or the upper and lower slide rails). The impact sound is amplified through the cavity of the slide rail, and obvious abnormal sound is caused, which causes the discomfort of passengers. SUMMARY
[0004] The utility model discloses a seat slide rail locking device which is simple in structure, high in locking strength, reliable in locking, and smooth in sliding.
[0005] The utility model discloses a seat slide rail locking device which is simple in structure, high in locking strength, reliable in locking, and smooth in sliding.
[0006] A seat slide rail locking device comprises a lower rail and an upper rail, the lower rail is provided with a sliding groove on the upper end of the two side arms of a "U" body, the upper rail is provided with a first locking tooth on the upper end of the upper rail, the lower rail is provided with a second locking tooth on the lower end of the lower rail, the left and right sides of the locking plate are provided with a locking hole which is sleeved with the first locking tooth and the second locking tooth, the locking plate is fixed with a locking rod which protrudes from the top plate of the upper rail, and a spring is hung between the locking plate and the top plate of the upper rail.
[0007] As a further optimization of the above technical solution, the front and rear sides of the locking plate are respectively provided with a hanging hole for hanging the spring, and the locking rod is fixed in the middle of the locking plate.
[0008] As a further optimization of the above technical solution, the top plate of the upper rail is provided with two through holes to form a spring hanging part in the middle, and the spring hanging part is provided with two through holes on the top plate of the upper rail.
[0009] As further optimization of the above technical solution, the lower ends of the two springs are respectively hung on the two suspension holes, and the upper ends of the two springs are respectively hung on the two spring suspension parts.
[0010] As further optimization of the above technical solution, two or more upper lock holes are arranged on the left and right sides of the lock plate, and the length of each lock hole can simultaneously accommodate the first lock tooth and the second lock tooth on the same side.
[0011] As further optimization of the above technical solution, the lock rod is sleeved with a spring support member for supporting the spring outward, and the spring is in an arc shape under the support of the spring support member.
[0012] As further optimization of the above technical solution, the spring support member comprises an upper column body and a lower column body arranged in an upper-lower interval, and the front and rear sides of the upper column body and the lower column body are connected by an arc block, and the middle part of the arc block is protruded to the front and rear sides of the upper column body and the lower column body.
[0013] As further optimization of the above technical solution, the lower part of the two side arms of the "U" body of the upper rail is provided with a through hole for the lock plate to pass through and move up and down.
[0014] As further optimization of the above technical solution, a through hole in the up-down direction is arranged in the center of the top plate of the upper rail, a bushing is sleeved on the through hole, and the lock rod extends from the center hole of the bushing downward.
[0015] As further optimization of the above technical solution, the two ends of the upper folding edge of the upper rail are respectively provided with a roller that can roll on the upper surface of the sliding groove bottom wall and a bearing that is elastically supported to roll on the lower surface of the inner folding edge of the lower rail, and the end part of the upper rail outside the roller is covered with an upper rail reinforcing plate.
[0016] 1、The locking member (lock plate) is in a flat plate structure, the strength of the lock plate is large, the locking strength of the sliding rail is improved, and the force acting point of the upper and lower rails on the locking member has no height difference, so that the possible rotation of the locking member and the tooth skipping are avoided.
[0017] 2、The reaction force of the elastic member (spring) on the locking member is completely generated by the deformation of the arc structure of the spring support member, the reaction force can be maximally converted into the supporting force on the return spring, and the tremolo of the return spring is better eliminated.
[0018] 3、The lock hole on the lock plate is sleeved on the second lock tooth of the lower rail to slide up and down, so as to implement the unlocking or locking of the second lock tooth on the upper rail, the second lock tooth of the lower rail has a guiding effect on the up-down sliding of the lock plate, and the up-down sliding of the lock plate is stable.
[0019] 4. The utility model discloses a plurality of lock holes are arranged on the lock plate, be used for improving locking strength, lock firmly, it is difficult to open lock without reason, avoid the accident to take place.
[0020] 5. The utility model discloses simple structure, locking strength is big, lock firmly, the up and down sliding of lock plate is stable, be applicable to the slide rail locking device of seat BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the three-dimensional schematic view of the utility model.
[0022] Figure 2 It is the explosion map of the upper rail and its related structure of the utility model.
[0023] Figure 3 It is the structure principle drawing of the lock plate of the utility model in the lock state.
[0024] Figure 4 It is the structure principle drawing of the lock plate of the utility model in the open lock state.
[0025] Figure 5 It is the partial sectional view of the lock plate of the utility model in the lock state.
[0026] Figure 6 It is the partial sectional view of the lock plate of the utility model in the open lock state.
[0027] Figure 7 It is the three-dimensional schematic view of the lock plate of the utility model.
[0028] Figure 8 It is the front view of the lock plate of the utility model.
[0029] Figure 9 It is Figure 1 the enlarged drawing partial schematic view.
[0030] Figure 10 It is the three-dimensional schematic view of the spring support piece of the utility model. DETAILED DESCRIPTION
[0031] The utility model will be further described in conjunction with the specific embodiment of the accompanying drawings, refer to Figures 1-10 :
[0032] A seat slide rail locking device, comprising a lower rail 10 and an upper rail 20, the lower rail 10 is provided with a slide groove 13 on both sides of the upper end of the two side arms 12 of a "U" body, the slide groove 13 is formed by first folding inward 15 and then folding downward 14, the upper rail 20 is provided with a lower end of the two side arms 28 of an inverted "U" body, the lower end of the two side arms 28 is provided with a first outward folding 26 and then a second upward folding 25, the second upward folding 25 of the upper rail 20 is located in the slide groove 13 and close to the lower rail 10, the upper end of the second upward folding 25 of the upper rail 20 is provided with a first locking tooth along the length direction, the lower end of the lower rail 10 is provided with a second locking tooth along the length direction, the left and right sides of the lock plate 50 are provided with a lock hole 51 which is sleeved on the first locking tooth and the second locking tooth respectively, the lock plate 50 is fixed with a lock rod 35 which protrudes from the top plate 29 of the upper rail 20 through a mounting hole 53, the lock plate 50 and the top plate 29 of the upper rail 20 are hung with a spring 34 which can pull the lock plate 50 upward to the lock hole 51 to cover the second locking tooth, when the lock rod 35 is pressed to the lock hole 51 away from the second locking tooth, the lower rail and the upper rail are unlocked.
[0033] As a further optimization of the above technical solution, the front and rear sides of the lock plate 50 are respectively provided with a suspension hole 51 for suspending the spring 34, and the lock rod 35 is fixed in the middle of the lock plate 50.
[0034] As a further optimization of the above technical solution, the top plate 29 of the upper rail 20 is provided with two through holes 23 to form a spring suspension part 24 in the middle, and the spring suspension part 24 is provided with two through holes.
[0035] As a further optimization of the above technical solution, the lower ends of the two springs 34 are respectively suspended on the two suspension holes 52 and 54, and the upper ends of the two springs 34 are respectively suspended on the two spring suspension parts 24.
[0036] As a further optimization of the above technical solution, the lock hole 51 is provided with two or more than two on the left and right sides of the lock plate 50, and the length of each lock hole 51 can simultaneously accommodate the first locking tooth and the second locking tooth on the same side.
[0037] As a further optimization of the above technical solution, the lock rod 35 is sleeved with a spring support 40 which can support the spring 34 outward, and the spring 34 is in an arc shape under the support of the spring support 40.
[0038] As a further optimization of the above technical solution, the spring support 40 comprises an upper column body 41 and a lower column body 43 which are arranged in an upper and lower interval, and the front and rear sides of the upper column body 41 and the lower column body 43 are connected by an arc block 42, and the middle part of the arc block 42 is respectively protruded to the front and rear sides of the upper column body 41 and the lower column body 43.
[0039] As a further optimization of the above technical solutions, the lower part of the two side arms 28 of the "U" body of the upper rail 20 is respectively provided with a through hole 27 for the lock plate 50 to pass through and move up and down.
[0040] As a further optimization of the above technical solutions, the top plate 29 of the upper rail 20 is centrally provided with a through hole 21 in the vertical direction, a bushing 22 is sleeved on the through hole 21, and the lock rod 35 extends from the center hole of the bushing 22 downward and upward.
[0041] As a further optimization of the above technical solutions, the two ends of the upper folded edge 25 of the upper rail 20 are respectively provided with a roller 31 that can roll on the upper surface of the chute bottom wall 11 and a bearing 32 that is elastically supported to roll on the lower surface of the inner folded edge 15 of the lower rail 10, and the end of the upper rail 20 outside the roller 31 is covered with an upper rail reinforcing plate 30.
[0042] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make simple replacements or modifications to the technical solutions or technical features recorded in the foregoing embodiments with similar technologies, and these simple replacements or modifications do not make the essence of the corresponding technical solutions deviate from the spirit and substance of the technical solutions of the embodiments of the present application, and still within the protection scope of the present application.
Claims
1. A seat slide lock device comprising a lower rail and an upper rail, characterized by: The lower rail is provided with a first inwardly folded edge and then a downwardly folded edge at the upper end of the two side arms of the "U" body, the upper rail is provided with a first outwardly folded edge and then an upwardly folded edge at the lower end of the two side arms of the inverted "U" body, the upper folded edge of the upper rail is located in the chute and close to the lower folded edge of the lower rail, the upper end of the upper folded edge of the upper rail is provided with a first locking tooth along the length direction, the lower end of the lower folded edge of the lower rail is provided with a second locking tooth along the length direction, the left and right sides of the lock plate are provided with a lock hole which is sleeved on the first locking tooth and the second locking tooth, the lock rod of the lock plate is fixed on the top plate of the upper rail, the spring is hung between the lock plate and the top plate of the upper rail, and the upper and lower rails are unlocked after the lock rod is pressed away from the second locking tooth.
2. The seat slide lock device of claim 1, wherein: The front and rear sides of the lock plate are provided with a hanging hole for hanging the spring.
3. The seat slide lock device of claim 2, wherein: The top plate of the upper rail is provided with two through holes to form a spring hanging part in the middle, and the spring hanging part is provided with two through holes on the top plate of the upper rail.
4. The seat slide lock device of claim 3, wherein: The lower ends of the two springs are respectively hung on the two hanging holes, and the upper ends of the two springs are respectively hung on the two spring hanging parts.
5. The seat slide lock device of claim 1, wherein: The lock hole is provided with two or more than two upper holes on the left and right sides of the lock plate, and the length of each lock hole can accommodate the first locking tooth and the second locking tooth on the same side.
6. The seat slide lock device of claim 1, wherein: The lock rod is sleeved with a spring support member for supporting the spring outward, and the spring is in an arc shape under the support of the spring support member.
7. The seat slide lock apparatus of claim 6, wherein: The spring support member comprises an upper column body and a lower column body which are arranged in an upper-lower direction, and the front and rear sides of the upper column body and the lower column body are connected by an arc-shaped block, and the middle part of the arc-shaped block is protruded to the front and rear sides of the upper column body and the lower column body.
8. The seat slide lock apparatus of claim 1, wherein: The lower part of the two side arms of the "U" body of the upper rail is provided with a through hole for the lock plate to pass through and move up and down.
9. The seat slide lock apparatus of claim 1, wherein: The top plate of the upper rail is provided with a through hole in the up-down direction, the through hole is sleeved with a bushing, and the lock rod extends from the center hole of the bushing downward.
10. The seat slide lock apparatus of claim 1, wherein: The two ends of the upper folded edge of the upper rail are respectively provided with a roller which can roll on the upper surface of the bottom wall of the chute and a bearing which is elastically supported on the lower surface of the inwardly folded edge of the lower rail, and the end of the upper rail outside the roller is covered with an upper rail reinforcing plate.