Clamping mechanism for supporting legs of child safety seat

Abstract

A child safety seat supporting leg clamping mechanism comprises a base, a seat is installed on the base, a control part is arranged at the bottom of the front end of the base, a handle box is arranged in the control part in a sliding mode, a supporting leg is rotatably installed on the handle box, a first containing groove used for containing the supporting leg is formed in the base, and a containing area communicated with the first containing groove is formed in the handle box. A top pressing piece is rotationally installed in the containing area, a pressing part is arranged at the end, close to the supporting legs, of the top pressing piece, a positioning protrusion is arranged at the other end, close to the control part, of the top pressing piece, and a groove corresponding to the positioning protrusion in position is further formed in the control part; through the rotating and sliding design, the supporting legs and the handle box can be completely contained in the base and the control part, precious available space in a vehicle is not occupied, and the space utilization rate is increased; a user can unfold, fix or fold the supporting legs only by simply pulling or pushing the handle box or rotating the supporting legs, so that the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of child safety seats, in particular to a supporting leg clamping mechanism of a child safety seat. Background Art

[0002] In today's era of popularization of cars, child safety seats are important equipment to ensure the safety of children in cars, and their design and functions are increasingly concerned by parents. In these safety seats, the support legs are key components to stabilize the seat structure and prevent shaking and tipping, and their importance is self-evident. However, in actual applications, the design and application of support legs face many problems. Due to the different interior spaces, seat shapes and sizes of different models, the support legs must have a certain degree of versatility and adjustability to meet the needs of different models. Therefore, the support legs are often required to have a structure that can be retracted and fixed. Existing child safety seats are equipped with support legs that can be retracted and folded, but this requires the user to manually pull out the support legs and then open them, which increases the burden on users carrying children, which may pose a threat to the safety of children in the car.

[0003] Therefore, a child safety seat support leg engaging mechanism is needed to solve this problem. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present utility model is to provide a child safety seat support leg engaging mechanism, which effectively solves the above problem.

[0005] The technical solution is as follows: the utility model comprises a base, a seat is mounted on the base, a control part is arranged at the bottom of the front end of the base, a handle box is slidably arranged in the control part, a support leg is rotatably arranged on the handle box, a first accommodating groove for accommodating the support leg is arranged on the base, a accommodating area connected with the first accommodating groove is arranged in the handle box, a pressing piece is rotatably arranged in the accommodating area, a pressing piece is arranged at one end of the pressing piece close to the support leg, a positioning protrusion is arranged at the other end of the pressing piece close to the control part, a groove corresponding to the position of the positioning protrusion is also arranged on the control part, and a spring for applying an upward force to the positioning protrusion of the pressing piece is also arranged in the accommodating area.

[0006] Preferably, a slide groove is provided on the side of the control part, and a slider slidably connected to the slide groove is provided on the handle box.

[0007] Preferably, both ends of the sliding block are further provided with limit plates, and the width of the limit plates is greater than the width of the sliding groove.

[0008] Preferably, the slider is arranged in the handle box, and both ends of the slider pass through the handle box and extend into the slide groove. A fixed shaft is provided on the slider, and the top pressure piece is rotatably installed on the fixed shaft. A positioning protrusion of the top pressure piece is provided with a mounting groove near one end of the slider, and a spring is arranged in the mounting groove, one end of the spring is connected to the top surface of the mounting groove, and the other end of the spring is connected to the slider.

[0009] Preferably, the sliding block is assembled from two symmetrical mounting parts, the top pressure piece is installed at the connection between the two mounting parts, and the two mounting parts are also provided with an avoidance groove for accommodating the top pressure piece.

[0010] Preferably, a cavity is provided inside the fixed shaft, and at least one mounting member is provided with a thread, and the two mounting members are fixed by installing a screw in the cavity.

[0011] Preferably, elastic limiting blocks are provided on both sides of the first accommodating groove.

[0012] Preferably, the support leg is rotatably mounted on the handle box via a rotating shaft, a torsion spring is provided on the rotating shaft, one end of the torsion spring is connected to the handle box, and the other end of the torsion spring is connected to the support leg.

[0013] Preferably, a supporting foot is further provided at the lower end of the supporting leg, and a second receiving groove for receiving the supporting foot is further provided at the first receiving groove.

[0014] Preferably, a shell is installed on the base, and the control unit is arranged in the shell.

[0015] Preferably, the second receiving groove includes an entry area close to the first receiving groove and a limit area away from the first receiving groove, the width of the entry area is greater than or equal to the width of the supporting foot, and the limit area is less than the width of the supporting foot.

[0016] The beneficial effects of the utility model are:

[0017] 1. When the support legs are not needed, the support legs and handle box can be completely stored in the base and control unit through the rotation and sliding design, without occupying the precious available space in the car, thus improving space utilization.

[0018] 2. The user can simply unfold, fix or store the supporting legs by pulling or pushing the handle box or rotating the supporting legs. The top pressure piece cooperates with the spring, and the torsion spring cooperates with the supporting legs to realize the automatic positioning and fixing of the handle box and the automatic pop-up and positioning of the supporting legs. There is no need for complicated operating steps, which improves the convenience of use.

[0019] 3. The design of the slider and the top pressure piece takes into account the convenience of installation, especially through the setting of the avoidance groove and the installation groove, which makes the assembly between parts smoother and also facilitates subsequent maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the bottom structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the connection structure between the handle box and the base after the shell of the utility model is removed.

[0023] Figure 4 It is a structural schematic diagram of the handle box of the utility model.

[0024] Figure 5 It is a structural schematic diagram of a sliding block and a top pressure piece of the utility model. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1:

[0027] Depend on Figures 1 to 5 The utility model includes a base 1, on which a seat 11 is installed, a control unit 2 is provided at the bottom of the front end of the base 1, a handle box 3 is slidably provided in the control unit 2, a support leg 4 is rotatably installed on the handle box 3, and a first receiving groove 12 for receiving the support leg 4 is provided on the base 1. When the support leg 4 is not needed, the support leg 4 can be retracted into the first receiving groove 12 for receiving by rotating, without occupying the usable space in the vehicle, and then the handle box 3 is controlled to move into the control unit 2, which can further reduce the occupied space. The handle box 3 has a receiving area 31 connected to the first receiving groove 12, and the receiving area 31 A pressing piece 5 is installed internally for rotation. A pressing portion 51 is provided at one end of the pressing piece 5 close to the supporting leg 4. A positioning protrusion 52 is provided at the other end of the pressing piece 5 close to the control part 2. When the pressing portion 51 rotates upward, the positioning protrusion 52 rotates downward. A groove 21 corresponding to the position of the positioning protrusion 52 is also provided on the control part 2. A corresponding through groove is provided on the handle box 3, so that the positioning protrusion 52 can extend into the groove 21 through the through groove. After the positioning protrusion 52 enters the groove 21, the position of the handle box 3 is fixed. A spring 53 is also provided in the accommodating area 31 to apply an upward force to the positioning protrusion 52 of the pressing piece 5.

[0028] Furthermore, a slide groove 22 is provided on the side of the control part 2, and a slider 32 slidably connected to the slide groove 22 is provided on the handle box 3, so that the handle box 3 slides in the control part 2 through the connection between the slider 32 and the slide groove 22.

[0029] Specifically, both ends of the sliding block 32 are provided with limiting plates 321 , the width of the limiting plates 321 is greater than the width of the sliding groove 22 , and is used to limit the handle box 3 .

[0030] It should be noted that the slider 32 is arranged in the handle box 3, and both ends of the slider 32 pass through the handle box 3 and extend into the slide groove 22. A fixed shaft 322 is provided on the slider 32, and the top pressure piece 5 is rotatably installed on the fixed shaft 322. The positioning protrusion 52 of the top pressure piece 5 is provided with a mounting groove 54 at one end close to the slider 32, and the spring 53 is arranged in the mounting groove 54. One end of the spring 53 is connected to the top surface of the mounting groove 54, and the other end of the spring 53 is connected to the slider 32.

[0031] In order to more conveniently install the top pressure piece 5 and the slider 32, the slider 32 is assembled from two symmetrical mounting pieces 323. The top pressure piece 5 is installed at the connection between the two mounting pieces 323. The two mounting pieces 323 are also provided with an avoidance groove 324 for accommodating the top pressure piece 5. The avoidance groove 324 is used to prevent the pressing portion 51 or the positioning protrusion 52 from easily colliding with the slider 32 when the top pressure piece 5 rotates.

[0032] The fixing shaft 322 has a cavity inside, and at least one mounting member 323 has a thread inside. The two mounting members 323 are fixed by installing screws in the cavity.

[0033] In addition, elastic limit blocks 121 are provided on both sides of the first accommodating groove 12, so that the supporting leg 4 will not fall downward after entering the first accommodating groove 12, and the user can elastically deform the elastic limit blocks 121 through manual control, thereby pulling out the supporting leg 4.

[0034] The support leg 4 is rotatably mounted on the handle box 3 via a rotating shaft 41, and a torsion spring 42 is provided on the rotating shaft 41. One end of the torsion spring 42 is connected to the handle box 3, and the other end of the torsion spring 42 is connected to the support leg 4. This allows the support leg 4 to pop out to an upright usage state after being pulled out with the handle box 3 and after the user pulls out the first accommodating groove 12.

[0035] A supporting foot 43 is further provided at the lower end of the supporting leg 4 , and a second receiving groove 13 for receiving the supporting foot 43 is further provided at the first receiving groove 12 .

[0036] A shell is installed on the base 1, and the control unit 2 is arranged in the shell.

[0037] Embodiment 2:

[0038] The second accommodating groove 13 includes an entry area close to the first accommodating groove 12 and a limiting area away from the first accommodating groove 12. The width of the entry area is greater than or equal to the width of the supporting foot 43, and the limiting area is smaller than the width of the supporting foot 43. The supporting foot 43 and part of the supporting leg 4 can be accommodated by the second accommodating groove 13.

[0039] When the utility model is in use, the user pulls the handle box 3 outwards, pulls the handle box 3 out of the control part 2, and the positioning protrusion 52 of the top pressure piece 5 enters the groove 21 under the action of the spring 53 to position the handle box 3. At the same time, the support leg 4 moves toward the first receiving groove 12, and the support foot 43 moves from the limiting area to the entry area, and pulls the support leg 4 downwards, so that the support foot 43 can leave the second receiving groove 13 through the entry area of ​​the second receiving groove 13, and rotate the support leg 4 to an upright state. In this process, the torsion spring 42 can exert an elastic force on the support leg 4 to move it to a vertical state. Afterwards, the adjustable leg can be fixed by adjusting the telescopic positioning function of the support leg 4. It should be noted that the telescopic positioning function of the support leg 4 adopts a conventional structure in the prior art, so the specific telescopic positioning structure will not be described in detail.

[0040] When it is necessary to retract the support leg 4, the telescopic positioning structure of the support leg 4 is controlled to make the telescopic leg reach the retracted state. At this time, the user pushes the support leg 4 inward, so that the support leg 4 overcomes the elastic force of the torsion spring 42 and is partially retracted into the first accommodating groove 12. When the support leg 4 is retracted, the pressing portion 51 of the top pressing member 5 is squeezed, thereby causing the top pressing member 5 to rotate, and the positioning protrusion 52 of the top pressing member 5 also leaves the groove 21, and then the handle box 3 can be pushed inwardly of the control part 2. Before pushing the handle box 3 into the control part 2, the support leg 4 is continued to be pushed so that the support leg 4 and the support foot 43 are completely entered into the entry area of ​​the first accommodating groove 12 and the second accommodating groove 13 respectively, and the support leg 4 is limited by the elastic limit block 121, and then the handle box 3 is pushed again, so that the handle box 3 enters the control part 2 and the support foot 43 moves from the entry area to the limiting area, and the support foot is further limited by the limiting area.

[0041] The beneficial effects of the utility model are:

[0042] 1. When the support legs are not needed, the support legs and handle box can be completely stored in the base and control unit through the rotation and sliding design, without occupying the precious available space in the car, thus improving space utilization.

[0043] 2. The user can simply unfold, fix or store the supporting legs by pulling or pushing the handle box or rotating the supporting legs. The top pressure piece cooperates with the spring, and the torsion spring cooperates with the supporting legs to realize the automatic positioning and fixing of the handle box and the automatic pop-up and positioning of the supporting legs. There is no need for complicated operating steps, which improves the convenience of use.

[0044] 3. The design of the slider and the top pressure piece takes into account the convenience of installation, especially through the setting of the avoidance groove and the installation groove, which makes the assembly between parts smoother and also facilitates subsequent maintenance and replacement.

[0045] The above-mentioned specific implementation modes / embodiments are specific implementation modes of the utility model, which are used to illustrate the concept of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the utility model and the scope of the utility model. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application. These technical solutions include technical solutions that make any obvious replacements and modifications to the embodiments described herein, which are within the scope of protection of the utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A child safety seat support leg engagement mechanism, comprising a base (1), a seat (11) being mounted on the base (1), characterized in that: A control part (2) is provided at the bottom of the front end of the base (1), a handle box (3) is slidably provided in the control part (2), a support leg (4) is rotatably mounted on the handle box (3), a first accommodating groove (12) for accommodating the support leg (4) is provided on the base (1), a accommodating area (31) connected to the first accommodating groove (12) is provided in the handle box (3), a pressing member (5) is rotatably mounted in the accommodating area (31), a pressing member (5) is provided at one end of the pressing member (5) close to the support leg (4), a positioning protrusion (52) is provided at the other end of the pressing member (5) close to the control part (2), a groove (21) corresponding to the position of the positioning protrusion (52) is also provided on the control part (2), and a spring (53) for applying an upward force to the positioning protrusion (52) of the pressing member (5) is also provided in the accommodating area (31).

2. A child safety seat support leg engagement mechanism according to claim 1, characterized in that: A sliding groove (22) is provided on the side of the control part (2), and a sliding block (32) slidably connected to the sliding groove (22) is provided on the handle box (3).

3. A child safety seat support leg engagement mechanism according to claim 2, characterized in that: Limiting plates (321) are also provided at both ends of the sliding block (32), and the width of the limiting plates (321) is greater than the width of the sliding groove (22).

4. A child safety seat support leg engagement mechanism according to claim 2 or 3, characterized in that: The slider (32) is arranged in the handle box (3), and both ends of the slider (32) pass through the handle box (3) and extend into the slide groove (22). A fixed shaft (322) is provided on the slider (32), and the top pressure piece (5) is rotatably installed on the fixed shaft (322). A positioning protrusion (52) of the top pressure piece (5) is provided with a mounting groove (54) at one end close to the slider (32). The spring (53) is arranged in the mounting groove (54), and one end of the spring (53) is connected to the top surface of the mounting groove (54), and the other end of the spring (53) is connected to the slider (32).

5. The child safety seat support leg engagement mechanism according to claim 4, characterized in that: The sliding block (32) is assembled from two symmetrical mounting parts (323), the pressing part (5) is mounted at the connection between the two mounting parts (323), and the two mounting parts (323) are also provided with an avoidance groove (324) for accommodating the pressing part (5).

6. The child safety seat support leg engagement mechanism according to claim 5, characterized in that: The fixing shaft (322) is provided with a cavity inside, and at least one mounting member (323) is provided with a thread inside, and screws are installed in the cavity to fix the two mounting members (323).

7. The child safety seat support leg engagement mechanism according to claim 1, characterized in that: Elastic limiting blocks (121) are provided on both sides of the first accommodating groove (12).

8. The child safety seat support leg engagement mechanism according to claim 1, characterized in that: The support leg (4) is rotatably mounted on the handle box (3) via a rotating shaft (41); a torsion spring (42) is provided on the rotating shaft (41); one end of the torsion spring (42) is connected to the handle box (3); and the other end of the torsion spring (42) is connected to the support leg (4).

9. The child safety seat support leg engagement mechanism according to claim 1, characterized in that: The lower end of the supporting leg (4) is also provided with a supporting foot (43), and the first receiving groove (12) is also provided with a second receiving groove (13) for receiving the supporting foot (43); The second accommodating groove (13) comprises an entry area close to the first accommodating groove (12) and a limiting area away from the first accommodating groove (12), the width of the entry area is greater than or equal to the width of the supporting foot (43), and the limiting area is smaller than the width of the supporting foot (43).

10. The child safety seat support leg engagement mechanism according to claim 1, characterized in that: A shell is installed on the base (1), and the control unit (2) is arranged inside the shell.

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