Legs, support legs and safety seats
By introducing a support plate and abutment plate structure into the child safety seat support leg, and using the sliding of the support plate to push the elastic boss to deform and open the circuit board switch, the assembly problem caused by the complex wiring in the prior art is solved, and the cost is reduced and the aesthetics are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOTUNG TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-21
AI Technical Summary
Existing child safety seats have many connecting wires, which makes assembly complicated, costly, and affects aesthetics and safety.
Design a support foot that uses a support plate, a sliding plate, and an elastic boss. The sliding of the support plate pushes the sliding plate to deform the elastic boss, thereby turning on the circuit board switch, realizing signal transmission, and reducing the number of connecting wires.
It effectively saves on connecting wires, reduces manufacturing costs, improves assembly efficiency, and enhances the ease of assembly and aesthetics of child safety seats.
Smart Images
Figure CN224528488U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of seating, and more particularly to a leg support, a support leg, and a child safety seat. Background Technology
[0002] With the increasing prevalence of vehicles and growing public awareness of safety, children are typically equipped with car seats when traveling by car to enhance safety. However, existing car seats require numerous connecting wires to obtain signals from various parts and enable coordinated control of all functions. This results in complex assembly, higher manufacturing costs, and compromises both aesthetics and safety.
[0003] Therefore, it is necessary to provide an improved support to solve some or all of the above problems. Utility Model Content
[0004] This application provides a support leg, a support arm, and a safety seat that saves on connecting cables.
[0005] This application provides a support leg, including:
[0006] A housing, the housing including a resilient boss and a base plate;
[0007] A circuit board, which is fixed inside the housing, wherein the elastic protrusion is correspondingly disposed with the switch portion of the circuit board and is used to abut against the switch portion of the circuit board;
[0008] A sliding plate is slidably disposed within the housing and can abut against the elastic protrusion as it deforms toward the circuit board;
[0009] The support plate slides through the base plate along the thickness direction of the support leg, and pushes the abutment plate to move when the support plate slides toward the inside of the housing.
[0010] Furthermore, the sliding direction of the support plate is perpendicular to the sliding direction of the abutment plate, the housing includes an upper shell and a lower shell connected together, and the abutment plate is located between the upper shell and the lower shell along the thickness direction of the support leg.
[0011] Furthermore, the abutment plate includes a plate pusher and a platform abutment protruding from the plate pusher. The plate pusher is located between the upper shell and the lower shell and is connected to the support plate. The elastic boss is located between the circuit board and the platform abutment.
[0012] Furthermore, the plate pusher is provided with an inclined first guide groove, and the support plate includes a support plate body and a shaft; the shaft is fixed to the support plate body and passes through the guide groove; when the support plate slides, the shaft moves in the first guide groove to push the abutment plate.
[0013] Furthermore, the platform abutment includes a first guide surface and a first side surface and a second side surface disposed opposite to each other. Along the direction from the plate pusher to the platform abutment, the first guide surface is inclined from the first side surface toward the second side surface, and the elastic boss contacts the first guide surface.
[0014] When the support plate slides toward the interior of the housing, the abutment plate moves along the direction from the plate push portion to the platform abutment portion, and the first guide surface abuts against the elastic boss and deforms.
[0015] Furthermore, the base plate is disposed on the lower shell, and along the thickness direction of the support leg, the platform abutment is located below the circuit board, and the second side slides against the base plate;
[0016] Alternatively, the upper shell includes an upper side surface and a limiting plate recessed from the upper side surface, the plate pusher is located between the bottom plate and the limiting plate, the platform abutment is located above the circuit board, and the second side surface slides against the limiting plate.
[0017] Furthermore, it also includes an elastic element, one end of which is connected to the support plate. The elastic element is used to provide elastic force to the support plate to assist the support plate in resetting.
[0018] Furthermore, the housing includes an upper shell and a lower shell connected to each other, and the bottom plate is disposed on the lower shell;
[0019] The elastic element abuts against the support plate and the upper shell respectively; when the support plate moves upward, the elastic element is compressed.
[0020] Alternatively, the elastic element is connected to both the support plate and the base plate, and the elastic element is stretched when the support plate moves upward.
[0021] This application also provides a support leg, including a support leg body and a foot as described above, wherein the support leg body and the foot are fixedly connected.
[0022] This application also provides a child safety seat, including the support legs described above.
[0023] Compared with the prior art, the support foot of this application is provided with a support plate, a sliding plate and an elastic boss. When the support plate slides toward the inside of the housing, it can push the sliding plate to move. The sliding plate can abut against the deformation of the elastic boss, so that the elastic boss abuts against the switch part of the circuit board. In this way, the circuit board can be opened for signal transmission by simply moving the support plate. Compared with the opening and closing of the circuit board controlled by the complex circuit in the existing support foot, it can effectively save connecting wires, reduce manufacturing costs and improve assembly efficiency.
[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description
[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.
[0026] Figure 1 This is a three-dimensional view of the supporting leg of this application.
[0027] Figure 2 yes Figure 1 A three-dimensional view of the central support leg.
[0028] Figure 3 yes Figure 2 Exploded view of the central support leg.
[0029] Figure 4 yes Figure 2 A cross-sectional view of the middle support along AA.
[0030] Figure 5 yes Figure 3 A three-dimensional view of the flexible boss after it is fixed to the boss bracket.
[0031] Figure 6 yes Figure 5 A cross-sectional view along BB after the flexible boss is fixed to the boss bracket.
[0032] Figure 7 yes Figure 4 Exploded view of the central support leg.
[0033] Figure 8 yes Figure 7 A three-dimensional view of the sliding plate in the support leg.
[0034] Figure 9 This is a schematic diagram of another embodiment of the cooperation between the sliding plate and the support plate in the support leg of this application.
[0035] Reference numerals: 1-Housing; 11-Elastic boss; 111-Spring plate; 112-Top column; 12-Bottom plate; 13-Upper shell; 131-Upper side; 132-Limiting plate; 14-Lower shell; 141-Boss bracket; 142-Mounting ring platform; 2-Circuit board; 21-Switch part of circuit board; 3-Abutting plate; 31-Push part; 311-First guide groove; 312-Push shaft; 32-Abutting part; 321-First guide surface; 322-First side; 323-Second side; 324-Second guide surface; 4-Support plate; 41-Support plate body; 42-Shaft; 43-Second guide groove; 44-Connecting part; 5-Elastic element; 10-Support leg body; 101-First support leg; 102-Second support leg. Detailed Implementation
[0036] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0037] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0038] This application's child safety seat includes a seat body (not shown) and support legs, the support legs being connected to the seat body to support it. Figure 1 As shown, the support leg includes a support leg body 10 and a foot, with the support leg body 10 connected to the foot. The support leg body 10 is telescopically oriented; specifically, it includes a first leg 101 and a second leg 102, with a portion of the second leg 102 slidably inserted within the first leg 101. The end of the second leg 102 facing away from the first leg 101 is fixed to the foot, and the end of the first leg 101 facing away from the second leg 102 is fixed to the seat body. This application's safety seat, through the telescopic design of the support leg body 10, allows the support leg to extend to different lengths, thereby better supporting the seat body and improving the versatility of the safety seat.
[0039] like Figures 2 to 4As shown, in some embodiments, the support leg includes a housing 1, a circuit board 2, a sliding plate 3, and a support plate 4. The housing 1 includes an elastic boss 11 and a base plate 12, and the circuit board 2 is fixed inside the housing 1. The elastic boss 11 is correspondingly disposed with respect to the switch portion 21 of the circuit board 2 and is used to abut against the switch portion 21 of the circuit board 2. Specifically, the elastic boss 11 can elastically deform, thereby contacting the switch portion 21 of the circuit board 2 to turn on the circuit board 2.
[0040] The abutment plate 3 is slidably disposed within the housing 1 and can abut against the elastic protrusion 11 as it deforms toward the circuit board 2. Along the thickness direction of the support leg, the support plate 4 slides through the base plate 12, and when the support plate 4 slides toward the interior of the housing 1, it pushes the abutment plate 3 to move. It should be noted that when the circuit board 2 is not open, part of the support plate 4 protrudes from the base plate 12, and when the support leg is placed on the external contact surface, the support plate 4 contacts the external contact surface before the base plate 12.
[0041] With this configuration, when the support leg touches the external contact surface, the support plate 4 can slide towards the inside of the housing 1 under the action of the external contact surface, thereby indirectly opening the circuit board 2 through the elastic boss 11 for signal transmission. Compared with the existing support legs that control the opening and closing of the circuit board through complex wiring, the support leg of this application can effectively save connecting wires, reduce manufacturing costs, and improve assembly efficiency. It is worth noting that the aforementioned external contact surface can be the bottom surface of the vehicle.
[0042] The sliding direction of the support plate 4 is perpendicular to the sliding direction of the abutment plate 3. It should be noted that due to manufacturing and assembly errors, the sliding direction of the support plate 4 is approximately perpendicular to the sliding direction of the abutment plate 3. The sliding direction of the support plate 4 coincides with the thickness direction of the support leg. For ease of description, the sliding direction of the support plate 4 can be represented by the Z-axis, and the sliding direction of the abutment plate 3 can be represented by the X-axis. Please refer to [reference needed] for details. Figure 4 and Figure 7 .
[0043] Further integration Figure 5 and Figure 6 As shown, in some embodiments, the housing 1 may further include an upper housing 13 and a lower housing 14, with the upper housing 13 connected to the lower housing 14. An elastic boss 11 is connected to either the upper housing 13 or the lower housing 14, and a base plate 12 is disposed on the lower housing 14. The following description assumes the elastic boss 11 is connected to the lower housing 14. The lower housing 14 includes a boss frame 141, and the elastic boss 11 includes a spring plate 111 and a top post 112. The boss frame 141 is fixed to the base plate 12, the spring plate 111 is connected to the boss frame 141, and the top post 112 protrudes from the spring plate 111 toward the circuit board 2.
[0044] Along the thickness direction of the support leg, the elastic boss 11 is located between the circuit board 2 and part of the abutment plate 3. The circuit board 2 is fixed between the upper shell 13 and the lower shell 14. The abutment plate 3 is limited to the upper shell 13 and the lower shell 14, and the abutment plate 3 slides through the boss frame 141.
[0045] The abutment plate 3 includes a pusher portion 31 and a platform abutment portion 32 protruding from the pusher portion 31. The pusher portion 31 is located between the upper shell 13 and the lower shell 14 and is connected to the support plate 4. The elastic boss 11 is located between the circuit board 2 and the platform abutment portion 32. Specifically, the upper and lower sides of the pusher portion 31 contact the upper shell 13 and the lower shell 14 respectively, thereby restricting the movement of the abutment plate 3 in the thickness direction of the support leg, so that the abutment plate 3 slides only in the X-axis direction.
[0046] The pusher portion 31 is provided with an inclined first guide groove 311, and the support plate 4 includes a support plate body 41 and a shaft 42. The shaft 42 is fixed to the support plate body 41 and passes through the first guide groove 311. When the support plate 4 slides, the shaft 42 moves within the first guide groove 311 to push the abutment plate 3. Specifically, when the support plate 4 slides toward the inside of the housing 1, it can push the abutment plate 3 to abut the elastic boss 11 and deform toward the circuit board 2. When the support plate 4 slides back toward the outside of the housing 1, it can push the abutment plate 3 to release the elastic boss 11, so that the elastic boss 11 is reset and deviated from the circuit board 2.
[0047] The platform abutment 32 includes a first guide surface 321 and two opposing first side surfaces 322 and 323. Along the direction from the plate pusher 31 to the platform abutment 32, the first guide surface 321 is inclined from the first side surface 322 toward the second side surface 323, and the elastic boss 11 contacts the first guide surface 321. This arrangement allows the first guide surface 321 to gradually abut against the elastic boss 11 and undergo elastic deformation. When the support plate 4 slides toward the interior of the housing 1, the abutment plate 3 moves along the direction from the plate pusher 31 to the platform abutment 32, and the first guide surface 321 deforms against the elastic boss 11. It is worth noting that the direction from the plate pusher 31 to the platform abutment 32 is parallel to the X-axis direction.
[0048] In order to make the deformation of the elastic boss 11 guided by the first guide surface 321 more quickly, the elastic plate 111 is inclined from the boss frame 141 toward the first guide surface 321, and the side of the elastic plate 111 away from the top column 112 is attached to the first guide surface 321.
[0049] In the above embodiment, the circuit board 2 is located above the elastic boss 11, and the abutment plate 3 slides against the base plate 12. Specifically, along the thickness direction of the support leg, the platform abutment 32 is located below the circuit board 2, and the second side 323 slides against the base plate 12.
[0050] In some other embodiments, the circuit board 2 is located below the elastic boss 11, and the abutment plate 3 slides against the upper shell 13. Specifically, the upper shell 13 includes an upper side surface 131 and a limiting plate 132 recessed from the upper side surface 131. The plate pusher 31 is limited between the bottom plate 12 and the limiting plate 132, the platform abutment 32 is located above the circuit board 2, and the second side surface 323 slides against the limiting plate 132.
[0051] Regardless of whether the circuit board 2 is located above or below the elastic boss 11, i.e., the second side 323 slides against the base plate 12 or the limiting plate 132, the first guide groove 311 is inclined from top to bottom along the direction from the plate pusher 31 to the platform abutment 32. When the support plate 4 is in the initial state, the shaft 42 is located at the lower end of the first guide groove 311. When the support plate 4 slides towards the inside of the housing 1 from the initial state, the shaft 42 can gradually move to the upper end of the first guide groove 311, at which time the top post 112 abuts against the switch part 21 of the circuit board 2.
[0052] When the support plate 4 is reset, the shaft 42 moves from the upper end of the first guide groove 311 to the lower end of the first guide groove 311, and the abutment plate 3 moves along the direction from the platform abutment portion 32 to the plate push portion 31, so that the abutment effect of the first guide surface 321 on the elastic boss 11 gradually weakens until it disappears.
[0053] Further integration Figure 7 and Figure 8 As shown, in the embodiment where the circuit board 2 is located above the elastic boss 11, the lower shell 14 may further include a mounting ring 142. The mounting ring 142 protrudes from the bottom plate 12 toward the limiting plate 132, and the mounting ring 142 is correspondingly disposed with the limiting plate 132. The boss bracket 141 and the elastic boss 11 are located within the mounting ring 142, and at least a portion of the platform abutment 32 passes through the mounting ring 142. The circuit board 2 is fixed between the mounting ring 142 and the limiting plate 132.
[0054] In some other embodiments, the platform abutment 32 may further include a second guide surface 324. Along the direction from the platform abutment 32 to the plate pusher 31, the second guide surface 324 is inclined from the first side surface 322 toward the second side surface 323, and the elastic boss 11 contacts the second guide surface 324. When the support plate 4 slides toward the interior of the housing 1, the abutment plate 3 moves along the direction from the platform abutment 32 to the plate pusher 31, and the second guide surface 324 deforms by abutting the elastic boss 11.
[0055] In order to make the deformation of the elastic boss 11 guided by the second guide surface 324 more rapid, the elastic plate 111 is inclined from the boss frame 141 toward the second guide surface 324, and the side of the elastic plate 111 away from the top column 112 is attached to the second guide surface 324.
[0056] In this embodiment, regardless of whether the circuit board 2 is located above or below the elastic boss 11, i.e., the second side 323 slides against the base plate 12 or the limiting plate 132, the first guide groove 311 is inclined from top to bottom in the plate pusher 31 along the direction from the platform abutment 32 to the plate pusher 31. When the support plate 4 is in the initial state, the shaft 42 is located at the lower end of the first guide groove 311. When the support plate 4 slides towards the inside of the housing 1 from the initial state, the shaft 42 can gradually move to the upper end of the first guide groove 311, at which time the top post 112 abuts against the switch part 21 of the circuit board 2.
[0057] When the support plate 4 is reset, the shaft 42 moves from the upper end of the first guide groove 311 to the lower end of the first guide groove 311, and the abutment plate 3 moves along the direction from the plate push part 31 to the platform abutment part 32, so that the abutment effect of the second guide surface 324 on the elastic boss 11 gradually weakens until it disappears.
[0058] like Figure 9 As shown, in some other embodiments, the support plate 4 is provided with an inclined second guide groove 43, and the plate pusher 31 includes a push shaft 312 passing through the second guide groove 43. When the support plate 4 slides, the push shaft 312 moves within the second guide groove 43 to cause the abutment plate 3 to slide. In this embodiment, the second side surface 323 of the platform abutment 32 can slide against the base plate 12 or the limiting plate 132. The second guide groove 43 is inclined from top to bottom along the direction from the plate pusher 31 to the platform abutment 32. When the support plate 4 is in the initial state, the push shaft 312 is located at the upper end of the second guide groove 43. When the support plate 4 slides towards the inside of the housing 1 from the initial state, the push shaft 312 can gradually move to the lower end of the second guide groove 43. At this time, under the action of the first guide surface 321, the elastic boss 11 causes the top post 112 to abut against the switch part 21 of the circuit board 2.
[0059] Admittedly, the second guide groove 43 can also be inclined from top to bottom along the direction from the platform abutment 32 to the plate pusher 31. When the support plate 4 is in the initial state, the push shaft 312 is located at the upper end of the second guide groove 43. When the support plate 4 slides towards the inside of the housing 1 from the initial state, the push shaft 312 can gradually move to the lower end of the second guide groove 43. At this time, under the action of the second guide surface 324, the elastic boss 11 causes the top post 112 to abut against the switch part 21 of the circuit board 2.
[0060] In some embodiments, the support leg may further include an elastic element 5, one end of which is connected to the support plate 4. The elastic element 5 provides elastic force to the support plate 4 to assist in resetting the support plate 4. This arrangement improves the ease of resetting the support plate 4 and closing the circuit board 2. Specifically, the elastic element 5 abuts against the support plate 4 and the limiting plate 132 of the upper shell 13. When the support plate 4 moves upward, the elastic element 5 is compressed, and the support plate 4 can be reset under the compressive force of the elastic element 5.
[0061] Admittedly, the elastic element 5 can also be connected to the support plate 4 and the base plate 12 respectively. When the support plate 4 moves upward, the elastic element 5 is stretched, and the support plate 4 can be reset under the action of the stretching force of the elastic element 5.
[0062] To ensure a more stable connection between the support plate 4 and the elastic element 5, the support plate 4 may also include a connecting portion 44, which protrudes from the support plate body 41, and the elastic element 5 is connected to the connecting portion 44. To further stabilize the support plate 4 during sliding, two support plate bodies 41 are provided, located on opposite sides of the plate pusher 31, with a shaft 42 connecting the two support plate bodies 41. The elastic elements 5 are arranged in a one-to-one correspondence with the support plate bodies 41, and the elastic elements 5 can be springs, leaf springs, or other structures; this is not limited in this document.
[0063] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A support leg, characterized in that, include: A housing, the housing including a resilient boss and a base plate; A circuit board, which is fixed inside the housing, wherein the elastic protrusion is correspondingly disposed with the switch portion of the circuit board and is used to abut against the switch portion of the circuit board; A sliding plate is slidably disposed within the housing and can abut against the elastic protrusion as it deforms toward the circuit board; The support plate slides through the base plate along the thickness direction of the support leg, and pushes the abutment plate to move when the support plate slides toward the inside of the housing.
2. The support leg according to claim 1, characterized in that, The sliding direction of the support plate is perpendicular to the sliding direction of the abutment plate. The housing includes an upper shell and a lower shell connected together. Along the thickness direction of the support leg, the abutment plate is located between the upper shell and the lower shell.
3. The support leg according to claim 2, characterized in that, The abutment plate includes a pusher portion and a platform abutment portion protruding from the pusher portion. The pusher portion is located between the upper shell and the lower shell and is connected to the support plate. The elastic boss is located between the circuit board and the platform abutment portion.
4. The support leg according to claim 3, characterized in that, The plate pusher is provided with an inclined first guide groove, and the support plate includes a support plate body and a shaft; the shaft is fixed to the support plate body and passes through the first guide groove; when the support plate slides, the shaft moves in the first guide groove to push the abutment plate.
5. The support leg according to claim 4, characterized in that, The platform abutment includes a first guide surface and a first side surface and a second side surface disposed opposite to each other. Along the direction from the plate pusher to the platform abutment, the first guide surface is inclined from the first side surface toward the second side surface, and the elastic boss contacts the first guide surface. When the support plate slides toward the interior of the housing, the abutment plate moves along the direction from the plate push portion to the platform abutment portion, and the first guide surface abuts against the elastic boss and deforms.
6. The support leg according to claim 5, characterized in that, The base plate is disposed on the lower shell, and along the thickness direction of the support leg, the platform abutment is located below the circuit board, and the second side slides against the base plate; Alternatively, the upper shell includes an upper side surface and a limiting plate recessed from the upper side surface, the plate pusher is located between the bottom plate and the limiting plate, the platform abutment is located above the circuit board, and the second side surface slides against the limiting plate.
7. The support leg according to claim 1, characterized in that, It also includes an elastic element, one end of which is connected to the support plate. The elastic element is used to provide elastic force to the support plate to assist the support plate in resetting.
8. The support leg according to claim 7, characterized in that, The housing includes an upper shell and a lower shell connected together, and the bottom plate is disposed on the lower shell; The elastic element abuts against the support plate and the upper shell respectively; when the support plate moves upward, the elastic element is compressed. Alternatively, the elastic element is connected to both the support plate and the base plate, and the elastic element is stretched when the support plate moves upward.
9. A support leg, characterized in that, It includes a support leg body and a foot as described in any one of claims 1 to 8, wherein the support leg body and the foot are fixedly connected.
10. A child safety seat, characterized in that, Includes the support leg as described in claim 9.