Child seat backrest connecting device

Abstract

The utility model discloses a child seat backrest connecting device, which relates to the technical field of child seats, and comprises a seat, a first driving motor is arranged on the side surface of the seat, one side of the first driving motor is connected with a two-way screw rod, the outer wall of the two-way screw rod is connected with a screw rod nut, and the screw rod nut is arranged in a clamping frame. The number of the clamping frames is two, the two clamping frames are symmetrically distributed on the bidirectional screw rod, a concave mounting plate is arranged between the two clamping frames, a mounting groove is formed in the concave mounting plate, a second driving motor is fixed in the mounting groove, a rotating shaft is connected to one side of the second driving motor, and a backrest body is fixedly connected to the outer wall of the rotating shaft; and a headrest is fixedly mounted on the outer side of the backrest body. By operating the second driving motor, the rotating shaft drives the backrest body to rotate, so that the effect of adjusting the inclination angle of the backrest body is achieved, and a child can conveniently change a sitting posture or a sleeping posture according to actual needs.

Description

Technical Field

[0001] The utility model relates to the technical field of child seats, in particular to a backrest connecting device for a child seat. Background Art

[0002] A child seat is a safe seat for babies.

[0003] With the continuous improvement of the design level in the field of child seat technology, various child seats are no longer limited to their specific functions, but need to be improved in terms of portability, ease of operation, cost, etc. Among them, in order to facilitate storage and carrying, it is an inevitable development trend to set the child seat to be assembled from several detachable parts. Since the backrest of the child seat is generally tilted at a large angle relative to the seat, the overall space occupied is large. If the backrest can be removed from the seat, a lot of space can be saved.

[0004] After searching the existing Chinese patent: Child seat backrest connection device and child seat (Announcement No.: CN204340756U), the child seat includes a seat and a backrest, the backrest is provided with a first clamping part, the seat is movably provided with a clamping piece and a mounting hole is provided at the rear end of the seat, the clamping piece has a second clamping part that can be detachably clamped to the first clamping part, wherein the lower end of the backrest is inserted into the mounting hole, and the first clamping part and the second clamping part are mutually clamped. When the second clamping part clamps the first clamping part, the backrest is fixed to the seat, so that the child seat can be used normally, and when the clamping piece is operated to make the second clamping part detach from the first clamping part, the backrest can be pulled out from the mounting hole and separated from the seat, thereby reducing the space occupied by the seat for easy storage and transportation.

[0005] Although the above patent connects and installs the backrest by snap-fitting, thereby facilitating the disassembly of the backrest and achieving the effect of reducing the space occupied by the seat for easy storage and transportation, the disadvantage is that the backrest is snap-fitted to the seat, so that the inclination angle of the backrest cannot be adjusted, resulting in the child being unable to switch between sleeping and sitting positions according to actual needs, thereby affecting the use function of the device and making the application scope of the device not wide enough.

[0006] Therefore, it is necessary to invent a child seat backrest connection device to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a child seat backrest connection device to solve the problem that the backrest inclination angle cannot be adjusted in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a child seat backrest connection device, comprising a seat, a first drive motor is arranged on the side of the seat, a bidirectional screw rod is connected to one side of the first drive motor, a screw nut is connected to the outer wall of the bidirectional screw rod, the screw nut is installed inside a clamping frame, the clamping frame has two groups, the two groups of clamping frames are symmetrically distributed on the bidirectional screw rod, a concave mounting plate is arranged between the two groups of clamping frames, a mounting groove is opened inside the concave mounting plate, a second drive motor is fixed inside the mounting groove, a rotating shaft is connected to one side of the second drive motor, a backrest body is fixedly connected to the outer wall of the rotating shaft, and a headrest is fixedly installed on the outer side of the backrest body.

[0009] Preferably, armrests are installed on the top of the seat, and there are two groups of armrests, which are symmetrically distributed on the seat.

[0010] Preferably, a protective cover body is fixedly connected to the side of the seat.

[0011] Preferably, one end of the bidirectional screw rod is connected to a first bearing.

[0012] Preferably, a guide sliding hole is provided inside the clamping frame, and a guide sliding rod is connected inside the guide sliding hole.

[0013] Preferably, a clamping slot is provided on a side surface of the clamping frame.

[0014] Preferably, one end of the rotating shaft is connected to a second bearing.

[0015] Technical effects and advantages of the utility model:

[0016] 1. By setting an angle adjustment mechanism, a concave mounting plate, a mounting groove, a second drive motor, a rotating shaft, a backrest body, and a headrest, a mounting groove is provided inside the concave mounting plate, and a second drive motor is fixed inside the mounting groove. When the inclination angle of the backrest body of the child seat needs to be adjusted, the second drive motor is operated so that the second drive motor drives the rotating shaft to rotate, and the outer wall of the rotating shaft is fixed with the backrest body. In this way, when the rotating shaft rotates, the backrest body is driven to rotate, so that the inclination angle of the backrest body can be adjusted. This changes the problem in the prior art that the backrest is connected to the seat and cannot be adjusted in inclination. This makes it convenient for children to change their sitting or sleeping positions as needed, thereby enhancing the adjustable performance of the device;

[0017] 2. By setting a backrest connecting device, a first driving motor, a two-way screw rod, a screw nut, a clamping frame, a guide slide hole, a guide slide bar, a slot, and a concave mounting plate, when it is necessary to disassemble or install the backrest, the first driving motor is operated so that the first driving motor drives the two-way screw rod to rotate, and the outer wall of the two-way screw rod is connected with two sets of screw nuts, and the two sets of screw nuts are respectively installed in the two sets of clamping frames, and the two sets of clamping frames are respectively provided with guide slide holes, and the two sets of guide slide holes are commonly connected to the inside of the two sets of guide slide holes, and under the limiting guiding action of the guide slide bar, the two sets of clamping frames make opposite or opposite movements on the two-way screw rod, so that the concave mounting plate can be clamped or released, and the top of the concave mounting plate is connected with a backrest, so that the backrest can be taken out or connected by disassembling or installing the concave mounting plate, thereby realizing the effect of facilitating the connection and installation of the backrest by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The utility model is a front view structural schematic diagram of a child seat backrest connection device.

[0020] Figure 2 This is a disassembled view of the overall structure of a child seat backrest connection device of the utility model.

[0021] Figure 3 The utility model is a child seat backrest connection device Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 The utility model is a schematic diagram of a top view of a backrest connection device for a child seat.

[0023] Figure 5 The utility model is a rear structural schematic diagram of a child seat backrest connection device.

[0024] In the figure: 1, seat; 2, armrest; 3, protective cover; 4, first drive motor; 5, bidirectional screw rod; 6, first bearing; 7, screw rod nut; 8, clamping frame; 9, guide slide hole; 10, guide slide rod; 11, slot; 12, concave mounting plate; 13, mounting slot; 14, second drive motor; 15, rotating shaft; 16, second bearing; 17, backrest body; 18, headrest. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-5 A child seat backrest connection device shown in the figure includes a seat 1, a first drive motor 4 is arranged on the side of the seat 1, wherein the first drive motor 4 plays a role in driving the bidirectional screw rod 5 to rotate, a bidirectional screw rod 5 is connected to one side of the first drive motor 4, wherein the bidirectional screw rod 5 plays a role in driving two groups of screw nuts 7 to move towards or oppositely, the outer wall of the bidirectional screw rod 5 is connected to the screw nut 7, wherein the two groups of screw nuts 7 play a role in driving two groups of clamping frames 8 to move towards or oppositely, the screw nuts 7 are installed inside the clamping frames 8, wherein the two groups of clamping frames 8 play a role in clamping and fixing the concave mounting plate 12, there are two groups of clamping frames 8, the two groups of clamping frames 8 are symmetrically distributed on the bidirectional screw rod 5, a concave mounting plate 12 is arranged between the two groups of clamping frames 8, wherein the concave The mounting plate 12 serves to install the inclination adjustment mechanism of the backrest body 17. A mounting groove 13 is provided inside the concave mounting plate 12, wherein the mounting groove 13 serves to install a second drive motor 14. A second drive motor 14 is fixed inside the mounting groove 13, wherein the second drive motor 14 serves to drive the rotating shaft 15 to rotate. A rotating shaft 15 is connected to one side of the second drive motor 14, wherein the rotating shaft 15 serves to drive the backrest body 17 to rotate, thereby achieving the effect of adjusting the inclination of the backrest body 17. The outer wall of the rotating shaft 15 is fixedly connected to the backrest body 17, wherein the backrest body 17 allows the child's back to lean on it, and a headrest 18 is fixedly installed on the outer side of the backrest body 17, wherein the headrest 18 allows the child's head to lean on it.

[0027] An armrest 2 is installed on the top of the seat 1. There are two groups of armrests 2. The two groups of armrests 2 are symmetrically distributed on the seat 1. The two groups of armrests 2 enable children to hold the seat 1 with both hands.

[0028] A protective cover body 3 is fixedly connected to the side of the seat 1 , wherein the protective cover body 3 serves to protect the first drive motor 4 .

[0029] One end of the bidirectional screw rod 5 is connected to a first bearing 6 , wherein the first bearing 6 allows the bidirectional screw rod 5 to rotate inside the first bearing 6 .

[0030] A guide slide hole 9 is provided inside the clamping frame 8, and a guide slide rod 10 is connected inside the guide slide hole 9, wherein the guide slide hole 9 allows the guide slide rod 10 to slide inside, and the guide slide rod 10 serves to guide the movement of the two groups of clamping frames 8.

[0031] A slot 11 is formed on the side of the clamping frame 8 , wherein the slot 11 allows a concave mounting plate 12 to be inserted therein.

[0032] One end of the rotating shaft 15 is connected to a second bearing 16 , wherein the second bearing 16 allows the rotating shaft 15 to rotate inside the second bearing 16 .

[0033] Working principle: When in use, a mounting groove 13 is opened inside the concave mounting plate 12, and a second drive motor 14 is fixed inside the mounting groove 13. When the inclination angle of the backrest body 17 of the child seat needs to be adjusted, the second drive motor 14 is operated so that the second drive motor 14 drives the rotating shaft 15 to rotate, and the outer wall of the rotating shaft 15 is fixed with the backrest body 17. In this way, when the rotating shaft 15 rotates, the backrest body 17 is driven to rotate, so that the inclination angle of the backrest body 17 can be adjusted. This changes the problem in the prior art that the backrest body 17 is clamped on the seat 1 and cannot be adjusted for inclination. This makes it convenient for children to change their sitting or sleeping positions as needed, thereby enhancing the adjustable performance of the device.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A child seat backrest connection device, comprising a seat (1), characterized in that: A first drive motor (4) is arranged on the side of the seat (1), one side of the first drive motor (4) is connected to a bidirectional screw rod (5), the outer wall of the bidirectional screw rod (5) is connected to a screw nut (7), the screw nut (7) is mounted inside a clamping frame (8), there are two groups of clamping frames (8), the two groups of clamping frames (8) are symmetrically distributed on the bidirectional screw rod (5), a concave mounting plate (12) is arranged between the two groups of clamping frames (8), a mounting groove (13) is provided inside the concave mounting plate (12), a second drive motor (14) is fixed inside the mounting groove (13), one side of the second drive motor (14) is connected to a rotating shaft (15), the outer wall of the rotating shaft (15) is fixedly connected to a backrest body (17), and a headrest (18) is fixedly mounted on the outer side of the backrest body (17).

2. A child seat backrest connection device according to claim 1, characterized in that: An armrest (2) is installed on the top of the seat (1), and there are two groups of armrests (2). The two groups of armrests (2) are symmetrically distributed on the seat (1).

3. A child seat backrest connection device according to claim 1, characterized in that: A protective cover body (3) is fixedly connected to the side of the chair seat (1).

4. A child seat backrest connection device according to claim 1, characterized in that: One end of the bidirectional screw rod (5) is connected to a first bearing (6).

5. The child seat backrest connection device according to claim 1, characterized in that: A guide sliding hole (9) is provided inside the clamping frame (8), and a guide sliding rod (10) is connected inside the guide sliding hole (9).

6. A child seat backrest connection device according to claim 1, characterized in that: A clamping slot (11) is provided on the side of the clamping frame (8).

7. A child seat backrest connection device according to claim 1, characterized in that: One end of the rotating shaft (15) is connected to a second bearing (16).

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