Multi-stage locking mechanism
By designing a multi-stage locking mechanism and utilizing the cooperation of pneumatic slide rails and sliders, the problem of car air curtains falling off during processing and use was solved, achieving a more stable limiting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YINQIN AUTOMATION TECH (GUANGDONG) CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-19
AI Technical Summary
Existing car air curtain anti-detachment mechanisms are prone to detachment during manufacturing and lack a locking structure, which may cause the air curtain to detach during use.
A multi-stage locking mechanism was designed, including an inclined seat, a pneumatic slide rail, a slider, a movable seat, a locking plate, and a multi-stage locking mechanism. The slider is driven to move by the pneumatic slide rail, and the first-stage and second-stage locking mechanisms are used to limit and lock the car air curtain to prevent its displacement.
It effectively prevents car air curtains from falling off during processing and use, and achieves a more stable limiting effect through a multi-level locking structure.
Smart Images
Figure CN224255171U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product manufacturing anti-detachment technology, and in particular to a multi-level locking mechanism. Background Technology
[0002] A car side curtain airbag is a type of safety airbag installed on both sides of the car roof. When a side collision occurs, sensors inside the car body detect the collision signal and send a signal to the airbag control unit. Upon receiving the signal, the airbag control unit immediately activates the airbag inflation device, and the airbag inflates and deploys instantly, forming a protective barrier to protect the heads of the occupants from injury. However, during the manufacturing process of car side curtain airbags, an anti-detachment mechanism is required for their placement.
[0003] However, existing car air curtain anti-detachment mechanisms still experience detachment during use and lack a locking structure, which in turn causes the car air curtain to detach. Utility Model Content
[0004] The purpose of this utility model is to provide a multi-level locking mechanism that can solve at least one of the above-mentioned technical problems. The technical solution of this utility model is as follows:
[0005] A multi-stage locking mechanism includes: an inclined seat, a first pneumatic slide rail obliquely fixed on the inclined seat, a first slider connected to the first pneumatic slide rail, a movable seat fixed on the first slider, a placement plate horizontally placed above the first pneumatic slide rail, a second pneumatic slide rail obliquely fixed on one side of the movable seat, a second slider connected to the second pneumatic slide rail, a locking plate fixed on one side of the second slider, a first-stage locking mechanism on one side of the inclined seat, and a second-stage locking mechanism on one side of the second pneumatic slide rail.
[0006] Furthermore, the movable seat includes a first side plate fixed to the left side of the first slider, a vertical plate fixed to the front of the first side plate, and a first limiting block fixed above the vertical plate.
[0007] Furthermore, placement seats are symmetrically fixed above the placement plate.
[0008] Furthermore, the positioning plate includes a second side plate fixed to one side of the second slider, and a second limiting block is fixed to the upper end of the second side plate.
[0009] Furthermore, the primary locking mechanism includes a hook movably hinged to the left side of the inclined seat, a first extension rod fixed to the rear end of the hook, an insertion groove provided on the first side plate, fixed seats symmetrically fixed on the left side of the inclined seat, a guide rod connected between each of the fixed seats, the guide rod being movably disposed in the insertion groove, a first spring sleeved on the guide rod, a stop fixed below the hook and located on the left side of the inclined seat, and a second spring connected between the stop and the hook.
[0010] Furthermore, the secondary locking mechanism includes a fastener seat located on the right side of the second pneumatic slide rail, a slot on the fastener seat, a buckle hinged in the slot, a second extension rod fixed laterally at the lower end of the buckle, a third spring between the buckle and the slot, an inclined block on the front side of the fastener seat, a locking rod fixed at the lower end of the second side plate, and a roller hinged at the front end of the locking rod.
[0011] Furthermore, guide sleeves are fixed on the lower end of the inclined seat and the fastener seat, and push rods are movably inserted into each of the guide sleeves. A fourth spring is sleeved and connected between each push rod and the adjacent guide sleeve, and each push rod is respectively abutted on the first extension rod and the second extension rod.
[0012] In summary, the advantages of this utility model over the prior art are:
[0013] This utility model provides a multi-level locking mechanism. In use, the car air curtain is gripped by the gripping mechanism and placed on the placement seat of the placement plate. At this time, the first slider is driven by the first pneumatic slide rail to move, so that the first slider drives the moving seat to limit the car air curtain and prevent it from falling off. Then, the second slider is driven by the second pneumatic slide rail to move, so that the locking plate limits the air curtain and prevents it from falling off. After the moving seat and the locking plate move, they can be locked by the first-level locking mechanism and the second-level locking mechanism respectively to prevent them from shifting. Compared with the prior art, the car air curtain is limited and prevented by multiple levels and has a multi-level locking structure. Attached Figure Description
[0014] Figure 1 This is one of the three-dimensional schematic diagrams of this utility model.
[0015] Figure 2 This is the second three-dimensional schematic diagram of the present invention.
[0016] Figure 3 This is one of the exploded schematic diagrams of this utility model.
[0017] Figure 4 This is the second exploded view of the present invention.
[0018] Explanation of reference numerals in the attached drawings: 1. Inclined seat; 2. First pneumatic slide rail; 3. First slider; 4. Moving seat; 5. Placement plate; 6. Second pneumatic slide rail; 7. Second slider; 8. Positioning plate; 100. Primary locking mechanism; 200. Secondary locking mechanism; 41. First side plate; 42. Vertical plate; 43. First limiting block; 51. Placement seat; 81. Second side plate; 82. Second limiting block; 101. Hook; 10 2. First extension rod; 103. Insertion slot; 104. Fixing seat; 105. Guide rod; 106. First spring; 107. Stop; 108. Second spring; 201. Fastener seat; 202. Slot; 203. Buckle; 204. Second extension rod; 205. Third spring; 206. Inclined block; 207. Snap-fit rod; 208. Roller; 11. Guide sleeve; 12. Push rod; 13. Fourth spring; Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0020] like Figures 1 to 4 A multi-stage locking mechanism is shown, characterized in that it includes: an inclined seat 1, a first pneumatic slide rail 2 obliquely fixed on the inclined seat 1, a first slider 3 connected to the first pneumatic slide rail 2, a movable seat 4 fixed on the first slider 3, a placement plate 5 horizontally placed above the first pneumatic slide rail 2, a second pneumatic slide rail 6 obliquely fixed on one side of the movable seat 4, a second slider 7 connected to the second pneumatic slide rail 6, a locking plate 8 fixed on one side of the second slider 7, a first-stage locking mechanism 100 provided on one side of the inclined seat 1, a second-stage locking mechanism 200 provided on one side of the second pneumatic slide rail 6, and placement seats 51 symmetrically fixed above the placement plate 5.
[0021] The above-described multi-stage locking mechanism, in use, uses a gripping mechanism to grab the car air curtain and place it on the placement seat of the placement plate. At this time, the first pneumatic slide rail 2 drives the first slider 3 to move, so that the first slider 3 drives the moving seat 4 to limit the car air curtain and prevent it from falling off. Then, the second pneumatic slide rail 6 drives the second slider 7 to move, so that the locking plate 8 limits the air curtain and prevents it from falling off. After the moving seat 4 and the locking plate 8 have moved, they can be locked by the first-stage locking mechanism 100 and the second-stage locking mechanism 200 respectively to prevent them from shifting. Compared with the prior art, it limits the car air curtain in multiple stages and has a multi-stage locking structure.
[0022] like Figure 3As shown, in some embodiments of this utility model, the movable seat 4 includes a first side plate 41 fixed to the left side of the first slider 3, a vertical plate 42 fixed to the front side of the first side plate 41, and a first limiting block 43 fixed above the vertical plate 42. When the first slider 3 moves, it drives the first side plate 41 to move obliquely. At this time, the first side plate 41 drives the vertical plate 42 to move, so that the vertical plate 42 moves the first limiting block 43 above the air curtain for limiting.
[0023] like Figure 3 As shown, in some embodiments of this utility model, the positioning plate 8 includes a second side plate 81 fixed to one side of the second slider 7, and a second limiting block 82 fixed at the upper end of the second side plate 81. When the second slider 7 moves, it drives the second side plate 81 to move, and at the same time, the second side plate 81 drives the second limiting block 82 to move, so that the second limiting block 82 moves above the air curtain for limiting.
[0024] like Figure 3 As shown, in some embodiments of this utility model, the primary locking mechanism 100 includes a hook 101 movably hinged to the left side of the inclined seat 1, a first extension rod 102 fixed to the rear end of the hook 101, an insertion groove 103 provided on the first side plate 41, fixed seats 104 symmetrically fixed on the left side of the inclined seat 1, and guide rods 105 connected between each of the fixed seats 104. The guide rods 105 are movably disposed in the insertion grooves 103, a first spring 106 is sleeved on the guide rods 105, and a stop is fixed below the hook 101 and located on the left side of the inclined seat 1. A second spring 108 is connected between the stop 107 and the hook 101. After the first side plate 41 moves to the desired position, its lower end contacts the hook 101, causing the hook 101 to swing. When the lower end of the first side plate 41 passes the hook 101, the second spring 108 on the stop 107 drives the hook 101 to reset, so that the hook 101 is fastened to the lower end of the first side plate 41. At the same time, the first side plate 41 can also be reset by the first spring 106 on the guide rod 105. During the reset, the first side plate 41 moves along the guide rod 105 through the insertion groove 103 on it.
[0025] like Figure 4As shown, in some embodiments of this utility model, the secondary locking mechanism 200 includes a fastener seat 201 disposed on the right side of the second pneumatic slide rail 6. A slot 202 is provided on the fastener seat 201, and a buckle 203 is movably hinged within the slot 202. A second extension rod 204 is laterally fixed at the lower end of the buckle 203. A third spring 205 is provided between the buckle 203 and the slot 202. An inclined block 206 is provided on the front side of the fastener seat 201, and a [missing information - likely a component or element] is fixed at the lower end of the second side plate 81. The locking rod 207 has a roller 208 movably hinged to its front end. When the second side plate 81 moves to the desired position, the locking rod 207 below it contacts the buckle 203, causing the buckle 203 to swing. After the locking rod 207 passes the buckle 203, it is reset by the third spring 205, so that the buckle 203 is fastened on the locking rod 207. At the same time, the locking rod 207 moves along the inclined block 206 through the roller 208. The inclined block 206 and the fastener seat 201 are installed and fixed on the production line.
[0026] like Figure 3 As shown, in some embodiments of this utility model, guide sleeves 11 are fixed on the lower end of the inclined seat 1 and the fastener seat 201. Push rods 12 are movably inserted into each guide sleeve 11. A fourth spring 13 is sleeved and connected between each push rod 12 and the adjacent guide sleeve 11. Each push rod 12 is respectively abutted on the first extension rod 102 and the second extension rod 204. When the first side plate 41 and the second side plate 81 need to be unlocked, each push rod 12 is moved by an external cylinder, so that each push rod 12 drives the hook 101 and the buckle 203 to swing, so that the hook 101 and the buckle 203 separate from the lower end of the first side plate 41 and the locking rod 207 respectively.
[0027] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-stage locking mechanism, characterized in that, include: An inclined seat (1) is provided, on which a first pneumatic slide rail (2) is fixed obliquely. A first slider (3) is connected to the first pneumatic slide rail (2). A movable seat (4) is fixed to the first slider (3). A placement plate (5) is horizontally placed above the first pneumatic slide rail (2). A second pneumatic slide rail (6) is fixed obliquely on one side of the movable seat (4). A second slider (7) is connected to the second pneumatic slide rail (6). A locking plate (8) is fixed on one side of the second slider (7). A first-level locking mechanism (100) is provided on one side of the inclined seat (1). A second-level locking mechanism (200) is provided on one side of the second pneumatic slide rail (6).
2. The multi-stage locking mechanism according to claim 1, characterized in that... The movable seat (4) includes a first side plate (41) fixed to the left side of the first slider (3), a vertical plate (42) fixed to the front side of the first side plate (41), and a first limiting block (43) fixed above the vertical plate (42).
3. The multi-stage locking mechanism according to claim 1, characterized in that... A placement seat (51) is symmetrically fixed above the placement plate (5).
4. A multi-stage locking mechanism according to claim 1, characterized in that... The positioning plate (8) includes a second side plate (81) fixed to one side of the second slider (7), and a second limiting block (82) is fixed at the upper end of the second side plate (81).
5. A multi-stage locking mechanism according to claim 2, characterized in that... The primary locking mechanism (100) includes a hook (101) hinged to the left side of the inclined seat (1), a first extension rod (102) fixed to the rear end of the hook (101), a insertion groove (103) provided on the first side plate (41), fixed seats (104) symmetrically fixed on the left side of the inclined seat (1), a guide rod (105) connected between each of the fixed seats (104), the guide rod (105) being movably disposed in the insertion groove (103), a first spring (106) sleeved on the guide rod (105), a stop (107) fixed below the hook (101) and located on the left side of the inclined seat (1), and a second spring (108) connected between the stop (107) and the hook (101).
6. A multi-stage locking mechanism according to claim 4, characterized in that... The secondary locking mechanism (200) includes a fastener seat (201) located on the right side of the second pneumatic slide rail (6). A slot (202) is provided on the fastener seat (201). A buckle (203) is movably hinged in the slot (202). A second extension rod (204) is horizontally fixed at the lower end of the buckle (203). A third spring (205) is provided between the buckle (203) and the slot (202). An inclined block (206) is provided on the front side of the fastener seat (201). A snap-fit rod (207) is fixed at the lower end of the second side plate (81). A roller (208) is movably hinged at the front end of the snap-fit rod (207).
7. A multi-stage locking mechanism according to any one of claims 5 and 6, characterized in that... Guide sleeves (11) are fixed on the lower end of the inclined seat (1) and the fastener seat (201). Push rods (12) are movably inserted into each of the guide sleeves (11). A fourth spring (13) is sleeved and connected between each push rod (12) and the adjacent guide sleeve (11). Each push rod (12) is respectively abutted on the first extension rod (102) and the second extension rod (204).