Base supporting leg structure of child safety seat
By incorporating a combination of outer tube, inner tube, folding plate, lever plate, and spring into the support leg structure of the child safety seat, and utilizing the lever principle and spring force, the support height can be quickly adjusted, solving the problems of complex design, high cost, and cumbersome adjustment in existing technologies.
Patent Information
- Application Number
- CN202520285878.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing child safety seats have complex and costly support leg structures, and the height adjustment process is cumbersome, cannot be adjusted quickly, and is inconvenient to use.
By incorporating components such as an outer tube, inner tube, folding plate, lever plate, and spring into the support leg structure, the inner tube slides freely within the outer tube, utilizing the lever principle and the spring force. Pressing the lever plate adjusts the support height, enabling rapid adjustment.
It enables rapid adjustment of the support height, simplifies the adjustment process, reduces costs, and facilitates production and use.
Smart Images

Figure CN223686405U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates specifically to a child safety seat base support leg structure. BACKGROUND
[0002] The child safety seat is a seat specially designed for children of different weights, installed in a car, which can effectively improve the safety of children riding in the car. It can ensure that the child's body is not too damaged in the event of emergency braking or collision. Currently, child safety seats all have support leg structures, which are an important safety configuration. During vehicle travel, the support leg structure can provide additional support points for the seat, reducing the shaking and displacement of the seat due to vehicle bumps, braking, or steering, etc., ensuring that the seat always remains stable, thereby maximizing the protection of the child's body.
[0003] In order to improve the flexibility of the support leg structure, most child safety seats currently have height adjustment function. However, the support leg structure is often designed to be more complex, with high cost and complicated production process. At the same time, the height adjustment process is cumbersome and cannot quickly adjust the support height, which is inconvenient to use.
[0004] Therefore, it is necessary to invent a child safety seat base support leg structure to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] (I) Purpose of the utility model
[0006] To solve the technical problems in the background art, the utility model provides a child safety seat base support leg structure. When the support height needs to be adjusted, only the push plate needs to be pressed to lift the end of the folding plate upwards and pop it out from the inserted hole. At this time, the inner tube limiting is released, and the user can pull out or push the inner tube to the appropriate position, then release the push plate. The folding plate will be inserted into the corresponding hole again under the action of the spring force to position it, thereby completing the adjustment of the inner tube extension amount, changing the height of the entire support leg structure. The entire adjustment process is simple and fast, achieving quick adjustment of the support height and facilitating user use.
[0007] (II) Technical scheme
[0008] In order to achieve the above purpose, the utility model provides the following technical scheme: a child safety seat base support leg structure, comprising an outer tube, the outer tube is internally provided with an inner tube capable of sliding along the length direction of the outer tube, the inner tube top wall is integrally sunken to form a sunken plate, a plurality of insertion holes are formed on the top of the sunken plate;
[0009] Two guide plates are connected in parallel to the bottom of the outer tube top wall and are arranged along the length direction of the outer tube, and a bottom plate is connected between the two guide plates.
[0010] The folding plate is inserted into any one of the insertion holes at the right end, and is used for positioning the inner tube which slides out of the outer tube;
[0011] The pushing plate is connected to the left side of the folding plate, and is used for driving the folding plate to separate from the inserted insertion hole, and driving the folding plate to be inserted into another insertion hole after the inner tube slides out;
[0012] The supporting blocks are connected to the front and back sides of the connection between the folding plate and the pushing plate, and are used for providing supporting points for the pushing plate and the folding plate;
[0013] The spring is installed at the bottom of the pushing plate, the bottom end of the spring is connected to the top of the bottom plate, and the spring is used for providing elastic force for the pushing plate.
[0014] Preferably, a plurality of the insertion holes are uniformly distributed along the length direction of the sinking plate, the bottom plate is located at the opening of the end of the outer tube, and the outer walls of the two guide plates are in contact with the side walls of the sinking position of the inner tube.
[0015] Preferably, the outer tube is provided with a bracket at the bending position.
[0016] Preferably, the bottom foot is connected to the end of the inner tube which is away from the bracket, the bottom foot is arranged outside the outer tube, and the cross section of the bottom foot is larger than the cross section of the opening of the end of the outer tube.
[0017] Preferably, the top of the front and back sides of the sinking plate is provided with a limiting groove which extends along the length direction of the sinking plate, and the length of the limiting groove is smaller than the length of the sinking plate.
[0018] Preferably, the outer tube is provided with a screw at the top of the front and back sides of the button, the bottom end of the screw penetrates downward to the bottom of the bottom plate, and the bottom ends of the two screws extend into the limiting grooves below, respectively.
[0019] Preferably, the top wall of the outer tube is provided with an opening, the opening is above the bottom plate, and the side walls of the outer tube at the opening are provided with protective walls which protrude outward.
[0020] Preferably, a clamping groove is formed between the bottom plate and the top wall of the outer tube, and the two supporting blocks are clamped to the end of the outer tube through the clamping groove.
[0021] Compared with the prior art, the above technical scheme of the utility model has the beneficial effects that:
[0022] The utility model discloses a support leg structure, including outer tube, inner tube, sink plate, jack, guiding plate, bottom plate, folding plate, push plate, spring, support block, support, bottom foot, limiting groove, screw, protection wall, clamping groove, it is characterized by the following: the push plate is connected with the folding plate, and the spring is connected with the push plate. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, obviously, the drawing in the following description only is some embodiment of the utility model is recorded, for the ordinary skilled in the art, still can obtain other drawings according to these drawings.
[0024] Figure 1 It is the whole structure schematic diagram of the utility model;
[0025] Figure 2 It is the connecting structure schematic diagram of folding plate and jack of the utility model;
[0026] Figure 3 It is the explosion drawing of folding plate and bottom plate of the utility model;
[0027] Figure 4 It is the distribution diagram of screw of the utility model;
[0028] Figure 5 It is the distribution diagram of guiding plate of the utility model;
[0029] Figure 6 It is the structure schematic diagram of inner tube of the utility model;
[0030] Figure 7 It is the connecting structure schematic diagram of push plate and spring of the utility model;
[0031] Figure 8 It is the demonstration drawing of the utility model when using after unfolding.
[0032] BRIEF DESCRIPTION OF DRAWINGS
[0033] 1 outer tube, 2 inner tube, 3 sink plate, 4 jack, 5 guiding plate, 6 bottom plate, 7 folding plate, 8 push plate, 81 spring, 9 support block, 10 support, 11 bottom foot, 12 limiting groove, 13 screw, 14 protection wall, 15 clamping groove. DETAILED DESCRIPTION
[0034] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.
[0035] The utility model provides a child safety seat base support leg structure as Figures 1-8 As shown in a child safety seat base support leg structure, including outer tube 1, the inner tube 2 that can slide along the length direction of outer tube 1 is arranged in the inside of outer tube 1, the top wall of inner tube 2 is integrally sunken and forms sunken plate 3, a plurality of insertion holes 4 are formed in the top of sunken plate 3;
[0036] Two guide plates 5 are connected to the bottom of the top wall of outer tube 1 in parallel and are arranged along the length direction of outer tube 1, and a bottom plate 6 is connected between the two guide plates 5;
[0037] Folding plate 7, the right end of folding plate 7 is clamped into the inside of any one insertion hole 4, and is used for positioning the inner tube 2 sliding out of outer tube 1;
[0038] Dial plate 8 is connected to the left side of folding plate 7 and is used for driving folding plate 7 to be separated from the inserted insertion hole 4 and driving folding plate 7 to be inserted into another insertion hole 4 after the inner tube 2 slides;
[0039] Support block 9 is connected to the front and back sides of the connection between folding plate 7 and dial plate 8 and is used for providing support points for dial plate 8 and folding plate 7;
[0040] Spring 81 is installed at the bottom of dial plate 8, the bottom end of spring 81 is connected to the top of bottom plate 6, and spring 81 is used for providing elastic force for dial plate 8.
[0041] In one embodiment, a plurality of insertion holes 4 are uniformly distributed along the length direction of sunken plate 3, the position of the insertion hole 4 into which the end of folding plate 7 is inserted is changed to limit the inner tube 2, the extension amount of the inner tube 2 is adjusted, that is, the height of the support leg structure is adjusted, the bottom plate 6 is located at the end opening of outer tube 1, the outer walls of the two guide plates 5 are in contact with the side walls of the sunken part of the inner tube 2, so that the inner tube 2 does not deviate and shake in the front and back directions when sliding in the outer tube 1, and the stability of the inner tube 2 when sliding is improved.
[0042] In one embodiment, one end of outer tube 1 is bent, a support 10 is installed at the bent part of outer tube 1, and the support leg structure is installed on the main body of the external child safety seat, so that the support leg structure is put into use.
[0043] In one embodiment, the inner tube 2 is connected with a foot 11 away from one end of the support 10, the foot 11 is arranged outside the outer tube 1, and the cross section of the foot 11 is larger than the cross section of the end opening of the outer tube 1, which increases the contact area between the end of the inner tube 2 and the external environment, so that the support leg structure is more stable when in use.
[0044] In one embodiment, the limiting grooves 12 are arranged on the top of the front and rear sides of the sink plate 3 along the length direction of the sink plate 3, the length of the limiting grooves 12 is smaller than the length of the sink plate 3, and the outer tube 1 is provided with screws on the top of the front and rear sides of the button, the bottom ends of the screws penetrate downward to the bottom of the bottom plate 6, and the bottom ends of the two screws extend into the limiting grooves 12 below, respectively. When the inner tube 2 slides in the outer tube 1, the limiting grooves 12 will translate synchronously, and at this time, the end of the bolt 13 will limit the sink plate 3 through the limiting grooves 12, so as to avoid the deviation of the sink plate 3, thereby improving the stability of the entire inner tube 2 again. When the end of the bolt 13 contacts the end of the limiting groove 12 when the inner tube 2 slides outward, the sink plate 3 can be limited, so that the sink plate 3 cannot continue to slide outward, thereby avoiding the separation of the inner tube 2 from the outer tube 1, and ensuring the integrity of the support leg structure.
[0045] In one embodiment, the top wall of the outer tube 1 is provided with an opening to provide a containing space for the folding plate 7, the pushing plate 8 and the supporting block 9, the opening is located above the bottom plate 6, the side walls of the outer tube 1 at the opening are outwardly protruded with protective walls 14 to protect the folding plate 7, the pushing plate 8 and the supporting block 9, and the clamping grooves 15 are formed between the bottom plate 6 and the top wall of the outer tube 1, the two supporting blocks 9 are clamped to the end of the outer tube 1 through the clamping grooves 15, so that the folding plate 7 and the pushing plate 8 can be installed on the bottom plate 6 through the supporting block 9, and then the inner tube 2 is limited and fixed.
[0046] The embodiment is specifically: in use, the end of the bending portion of the outer tube 1 is connected with the support 10 through the rotating shaft, and the support leg structure is connected with the main body of the external child safety seat through the support 10, when not in use, the outer tube 1 is in a horizontal folding state, and when in use, the outer tube 1 can be rotated downward to be unfolded, so as to support the main body of the child safety seat. The installation of the outer tube 1 through the support 10 and the rotation of the outer tube 1 will not be described in detail, and those skilled in the art can understand the specific implementation scheme of the rotation and unfolding of the outer tube 1 around the rotating shaft after installation, therefore, only the function defined is mentioned.
[0047] The four of the dial plate 8, the spring 81, the supporting block 9 and the folding plate 7 form an adjusting button, which is made of plastic, and when the user needs to adjust the supporting height of the supporting leg structure, the dial plate 8 is pressed to rotate downward with the supporting point as the supporting point, under the action of the lever principle, the end of the folding plate 7 is lifted upward to pop out from the inside of the inserted hole 4, at this time, the spring 81 is forced to shrink downward to store elastic force, meanwhile, the inner tube 2 is no longer limited by the folding plate 7 and can freely reciprocate in the outer tube 1, that is, the position of the inserted hole 4 on the sink plate 3 is changed, at this time, the user adjusts the inner tube 2 to the appropriate position according to the use requirement, and then releases the dial plate 8, under the action of the spring 81, the dial plate 8 can exert a downward pressing force on the folding plate 7, when the folding plate 7 is inserted into the corresponding inserted hole 4 again, the position of the inner tube 2 is limited again, so that the adjustment of the extension amount of the inner tube 2 is quickly completed, the height of the whole supporting leg structure is changed, the whole adjusting process is simple and fast, the quick adjustment of the supporting height is realized, the user is facilitated, the supporting leg structure is simple, the cost is low, and the production is facilitated.
[0048] The embodiment specifically solves the problem that most of the supporting leg structures of the child safety seat in the prior art have height adjustment function, the supporting leg structure is designed to be relatively complex, the cost is high, the production process is troublesome, the height adjustment process is complicated, the supporting height cannot be quickly adjusted, and the use is inconvenient.
[0049] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways, therefore, the above drawings and description are illustrative in nature and should not be understood as the limitation of the protection scope of the utility model claims.
Claims
1. A child safety seat base support leg structure characterized by: Include: The outer tube (1) is internally provided with an inner tube (2) which can slide along the length direction of the outer tube (1), the top wall of the inner tube (2) is integrally sunken to form a sunken plate (3), and a plurality of insertion holes (4) are formed in the top of the sunken plate (3); Two guide plates (5) are connected to the bottom of the top wall of the outer tube (1) and are arranged along the length direction of the outer tube (1), and a bottom plate (6) is connected between the two guide plates (5); The folding plate (7) is inserted into the inner tube (2) which slides out of the outer tube (1), and is used for positioning the inner tube (2) which slides out of the outer tube (1); The dial plate (8) is connected to the left side of the folding plate (7), which is used to drive the folding plate (7) to separate from the inserted insertion hole (4), and after the inner tube (2) slides, the folding plate (7) is driven to be inserted into another insertion hole (4) again; The support block (9) is connected to the front and back of the connection between the folding plate (7) and the dial plate (8), which is used to provide support points for the dial plate (8) and the folding plate (7); The spring (81) is installed at the bottom of the dial plate (8), and the bottom end of the spring (81) is connected to the top of the bottom plate (6), which is used to provide elastic force for the dial plate (8).
2. A child safety seat base support leg structure according to claim 1, wherein: A plurality of the insertion holes (4) are uniformly distributed along the length direction of the sunken plate (3), the bottom plate (6) is located at the opening of the end of the outer tube (1), and the outer walls of the two guide plates (5) are in contact with the side walls of the sunken part of the inner tube (2).
3. A child safety seat base support leg structure according to claim 1, wherein: The outer tube (1) is bent at one end, and the outer tube (1) is provided with a support (10) at the bent part.
4. A child safety seat base support leg structure according to claim 3 wherein: The end of the inner tube (2) away from the support (10) is connected with a bottom foot (11), and the bottom foot (11) is arranged outside the outer tube (1), and the cross section of the bottom foot (11) is larger than the cross section of the opening of the end of the outer tube (1).
5. A child safety seat base support leg structure according to claim 1, wherein: The top of the front and back of the sunken plate (3) is provided with a limiting groove (12) extending along the length direction of the sunken plate (3), and the length of the limiting groove (12) is less than the length of the sunken plate (3).
6. A child safety seat base support leg structure according to claim 5 wherein: The outer tube (1) is provided with a screw at the top of the front and back of the button, the bottom end of the screw penetrates downward to the bottom of the bottom plate (6), and the bottom ends of the two screws extend into the limiting grooves (12) below them respectively.
7. A child safety seat base support leg structure according to claim 1 wherein: The top wall of the outer tube (1) is provided with an opening, the opening is above the bottom plate (6), and the side walls of the outer tube (1) at the opening are outwardly protruding with protective walls (14).
8. A child safety seat base support leg structure according to claim 1, wherein: The bottom plate (6) and the top wall of the outer tube (1) form a clamping groove (15), and the two support blocks (9) are clamped to the end of the outer tube (1) through the clamping groove (15).