Front armrest folding structure of baby carriage

Abstract

The utility model discloses a baby carriage front armrest folding structure, and relates to the technical field of baby carriages. The folding chair comprises a supporting leg, a rotating shaft is fixedly connected to the upper portion of the supporting leg, one side of the rotating shaft is rotationally connected with a front armrest through a driven shaft, the other side of the rotating shaft is rotationally connected with a side frame through a driving shaft, a back frame is rotationally connected to the portion, below the rotating shaft, of the supporting leg, and the side frame is arranged on the back frame in a sliding mode. A clamping block is slidably connected into the driven shaft, and a clamping groove corresponding to the clamping block is formed in the rotating shaft. The foldable baby carriage has the advantages that according to the structure, the front armrest is linked to be folded through the action of folding the baby carriage, the front armrest can be normally used when unfolded, and the front armrest can be conveniently folded and stored when folded.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, and particularly relates to a folding structure of a front armrest of a baby carriage. Background Art

[0002] A baby carriage is a tool vehicle designed to facilitate outdoor activities for babies. It is also the most beloved means of transportation for babies to take walks, and it is a necessity for mothers when taking their babies shopping on the street. However, according to the growth of babies and the usage purposes, baby carriages can be divided into many types. Generally, it is based on the load capacity, and the general test standard is nine to fifteen kilograms. And baby carriages generally have a folding function. When not in use, the baby carriage is folded and stored. However, after the traditional baby carriage is folded, the folding of the position of its front armrest is inconvenient. It is also necessary to operate the front armrest to fold it, which is inconvenient and slow in folding speed. Therefore, it is necessary to provide a new folding structure of the front armrest of a baby carriage to solve the problems of inconvenient folding of the front armrest and slow folding speed. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a folding structure of a front armrest of a baby carriage in view of the above-mentioned existing technical deficiencies. With this structure, the folding of the front armrest is linked by the action of folding the baby carriage. When unfolded, the front armrest can be used normally, and when folded, it is also convenient to fold and store the front armrest.

[0004] The technical solution adopted by the utility model is as follows: A folding structure of a front armrest of a baby carriage is provided, which includes a leg. A rotating shaft is fixedly connected to the upper part of the leg. One side of the rotating shaft is rotatably connected to a front armrest through a driven shaft, and the other side of the rotating shaft is rotatably connected to a side frame through a driving shaft. A back frame is rotatably connected to the leg below the rotating shaft. The side frame is slidably arranged on the back frame. It is characterized in that: A driving block is slidably connected in the rotating shaft, a clamping block is slidably connected in the driven shaft, and a clamping groove corresponding to the clamping block is opened on the rotating shaft; A driving block is arranged in the driving shaft. When the driving block rotates, it can drive the driving block to slide. When the driving block slides, it can drive the clamping block to slide in the clamping groove; It also includes a limiting device for locking the side frame and the back frame.

[0005] To further optimize the technical solution, the driving block of the folding structure of the front armrest of the baby carriage is an inclined tooth block shape. An inclined tooth groove corresponding to the driving block is opened on the driving block. Both the driving block and the inclined tooth groove are arranged in a ring shape. A driving spring is arranged between the driving block and the rotating shaft.

[0006] To further optimize the technical solution, a driven spring is arranged between the clamping block and the driven shaft of the folding structure of the front armrest of the baby carriage. One end of the driving block is fixedly connected to at least one driving rod. The driving rod passes through the rotating shaft and is in contact and cooperation with the surface of the clamping block.

[0007] To further optimize this technical solution, the number of the driving rods in the folding structure of the front armrest of the baby stroller is three. Three sliding holes corresponding to the driving rods are provided on the rotating shaft, and the driving rods are slidably connected to the sliding holes.

[0008] To further optimize this technical solution, a circular ring groove corresponding to the driving rod is provided on one side of the clamping block in the folding structure of the front armrest of the baby stroller.

[0009] To further optimize this technical solution, a sliding tube is slidably connected to the back frame in the folding structure of the front armrest of the baby stroller. One end of the sliding tube is rotatably connected to the side frame; the limiting device includes an insertion block slidably arranged on the back frame. The other end of the insertion block is connected to the inner side of the back frame through a spring, and a jack corresponding to the insertion block is provided on the sliding tube.

[0010] Compared with the traditional folding structure of the front armrest of the baby stroller, the beneficial effects of the present utility model are as follows:

[0011] 1. Through the cooperation of the side frame, the driving shaft, the driving block, the driving block, the helical tooth groove, the driving rod, the rotating shaft, the clamping block, the clamping groove, and the driven shaft, the clamping block no longer limits the clamping groove on the driving block. While other frame parts of the baby stroller are being folded, the front armrest can also be folded. Through linkage, the front armrest is no longer clamped, making it more convenient to use;

[0012] 2. Through the cooperation of the side frame, the driving shaft, the driving block, the driving block, the helical tooth groove, the rotating shaft, the driving spring, the driving rod, the clamping block, the driven shaft, the driven spring, and the clamping groove, a part of the clamping block is located in the clamping groove, and another part of the clamping block is located in the driven shaft, thereby clamping the driven shaft and the front armrest again. The baby stroller can be used normally; when folding the baby stroller, the front armrest is folded through a rotating action, which is convenient for normal use of the front armrest and also convenient for folding and storing the front armrest when folding;

[0013] 3. Through the setting of the limiting device, the back frame, the side frame, and the support legs, other frame parts of the baby stroller are folded; and the setting of the limiting device facilitates the folding and fixing of the baby stroller. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic diagram of the structural change at the side frame and the back frame of the present utility model;

[0016] Figure 3 is an exploded structural diagram of the rotating shaft of the present utility model;

[0017] Figure 4 is a schematic diagram of another perspective of the partial decomposition of the rotating shaft of the present utility model;

[0018] Figure 5Schematic structural diagram when the driven shaft of the present utility model rotates and folds;

[0019] In the figure, 1 is a leg; 2 is a rotating shaft; 3 is a driven shaft; 4 is a front armrest; 5 is a driving shaft; 6 is a side frame; 7 is a backrest frame; 8 is a driving block; 9 is a clamping block; 10 is a clamping groove; 11 is a driving block; 12 is a limiting device; 121 is an inserting block; 122 is a spring; 123 is an inserting hole; 13 is an inclined tooth groove; 14 is a driving spring; 15 is a driven spring; 16 is a driving rod; 17 is a sliding hole; 18 is an annular groove; 19 is a sliding tube. Specific embodiments

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] As Figures 1-5 shown, the folding structure of the front armrest of the baby carriage includes a leg 1. A rotating shaft 2 is fixedly connected to the upper part of the leg 1. One side of the rotating shaft 2 is rotatably connected to a front armrest 4 through a driven shaft 3. The other side of the rotating shaft 2 is rotatably connected to a side frame 6 through a driving shaft 5. A backrest frame 7 is rotatably connected to the leg 1 below the rotating shaft 2. The side frame 6 is slidably arranged on the backrest frame 7. It is characterized in that: a driving block 8 is slidably connected in the rotating shaft 2, a clamping block 9 is slidably connected in the driven shaft 3, and a clamping groove 10 corresponding to the clamping block 9 is formed on the rotating shaft 2; a driving block 11 is arranged in the driving shaft 5. When the driving block 11 rotates, it can drive the driving block 8 to slide. When the driving block 8 slides, it can drive the clamping block 9 to slide in the clamping groove 10; it further includes a limiting device 12 for locking the side frame 6 and the backrest frame 7; the driving block 11 is in the shape of an inclined tooth block. An inclined tooth groove 13 corresponding to the driving block 11 is formed on the driving block 8. Both the driving block 11 and the inclined tooth groove 13 are arranged in a ring shape. A driving spring 14 is arranged between the driving block 8 and the rotating shaft 2; a driven spring 15 is arranged between the clamping block 9 and the driven shaft 3. One end of the driving block 11 is fixedly connected to at least one driving rod 16. The driving rod 16 passes through the rotating shaft 2 and is in contact and cooperation with the surface of the clamping block 9; a driven spring 15 is arranged between the clamping block 9 and the driven shaft 3. One end of the driving block 11 is fixedly connected to at least one driving rod 16. The driving rod 16 passes through the rotating shaft 2 and is in contact and cooperation with the surface of the clamping block 9; an annular groove 18 corresponding to the driving rod 16 is formed on one side of the clamping block 9; a sliding tube 19 is slidably connected to the backrest frame 7. The sliding tube 19 is rotatably connected to one end of the side frame 6; the limiting device 12 includes an inserting block 121 slidably arranged on the backrest frame 7. The other end of the inserting block 121 is connected to the inner side of the backrest frame 7 through a spring 122. An inserting hole 123 corresponding to the inserting block 121 is formed on the sliding tube 19.

[0022] When in use, the backrest frame 7 and the side frame 6 are no longer locked by the limiting device 12. At this time, both the backrest frame 7 and the side frame 6 in the triangle formed by the backrest frame 7, the side frame 6 and the leg 1 can rotate. After the backrest frame 7 and the side frame 6 rotate, it will be asFigure 2 As shown, while the side frame 6 rotates, one end of the side frame 6 slides on the back frame 7, and the back frame 7 also rotates simultaneously, and other frame parts of the stroller are folded;

[0023] While the side frame 6 rotates, the side frame 6 drives the driving shaft 5 to rotate, and the driving block 11 on the driving shaft 5 rotates accordingly. When the driving block 11 rotates, according to the settings of the driving block 11 and the helical groove 13 on the driving block 8, and according to the sliding limit of the driving block 8 through the driving rod 16 and the sliding hole 17 on the rotating shaft 2, when the rotating block rotates, the driving block 8 and the driving rod 16 both slide. When the driving rod 16 slides, the other end of the driving rod 16 drives the engaging block 9 in contact and cooperation with it to slide, and the engaging block 9 slides out of the card slot 10 and completely slides into the driven shaft 3. As Figure 5 shown, the engaging block 9 no longer limits the card slot 10 on the driving block 8. At this time, the driven shaft 3 and the front armrest 4 can be rotated, and while other frame parts of the stroller are folded, the front armrest 4 is no longer limited, and the front armrest 4 can also be folded. Through linkage, the front armrest 4 is no longer clamped, making it more convenient to use;

[0024] When the stroller is unfolded, the side frame 6 rotates in the reverse direction, driving the driving shaft 5 and the driving block 11 to reset. The driving block 11 re-enters the helical groove 13 on the driving block 8. According to the settings of the active spring 14 between the driving block 8 and the rotating shaft 2, the driving block 11 no longer limits the driving block 8, and the driving block 8 resets. The driving block 8 and the driving rod 16 reset, and the driving rod 16 no longer limits the engaging block 9. According to the settings of the driven spring 15 between the engaging block 9 and the driven shaft 3, the engaging block 9 moves towards the card slot 10. When the front armrest 4 and the driven shaft 3 are rotated to the position as Figure 1 shown, just the engaging block 9 and the card slot 10 are corresponding. At this time, according to the elasticity of the driven spring 15, the engaging block 9 snaps into the card slot 10. Part of the engaging block 9 is located in the card slot 10, and the other part of the engaging block 9 is located in the driven shaft 3, thus clamping and limiting the driven shaft 3 and the front armrest 4 again. At this time, the front armrest 4 is unfolded, and the stroller can be used normally. When folding the stroller, the front armrest 4 is folded through the rotation action. After unfolding and using the stroller, the front armrest 4 can be unfolded and fixed by moving the front armrest 4, which is convenient for normal use of the front armrest 4 and also convenient for folding and storing the front armrest 4 when folding;

[0025] With the setting of the limiting device 12, by pressing the insertion block 121, the insertion block 121 no longer limits the sliding tube 19. At this time, moving the sliding tube 19 and the side frame 6 can fold the stroller, which is convenient for folding and storing; when unfolding, the sliding tube 19 moves to the position of the insertion block 121. According to the settings of the spring 122, the insertion block 121 retracts into the back frame 7. When the jack 123 on the sliding tube 19 corresponds to the insertion block 121, the insertion block 121 resets and clamps the sliding tube 19 to the back frame 7, thus fixing the entire stroller, and the stroller can be used.

[0026] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A folding structure for the front armrest of a baby carriage, comprising a leg (1), a rotating shaft (2) is fixedly connected to the upper part of the leg (1), a front armrest (4) is rotatably connected to one side of the rotating shaft (2) through a driven shaft (3), a side frame (6) is rotatably connected to the other side of the rotating shaft (2) through a driving shaft (5), a backrest frame (7) is rotatably connected to the leg (1) below the rotating shaft (2), and the side frame (6) is slidably arranged on the backrest frame (7), and is characterized in that: A driving block (8) is slidably connected inside the rotating shaft (2), a clamping block (9) is slidably connected inside the driven shaft (3), and a clamping groove (10) corresponding to the clamping block (9) is formed on the rotating shaft (2); A driving block (11) is arranged inside the driving shaft (5). When the driving block (11) rotates, it can drive the driving block (8) to slide. When the driving block (8) slides, it can drive the clamping block (9) to slide inside the clamping groove (10); It further includes a limiting device (12) for locking the side frame (6) and the back frame (7).

2. The folding structure of the front armrest of the baby stroller according to claim 1, wherein: The driving block (11) is in the shape of an inclined tooth block. An inclined tooth groove (13) corresponding to the driving block (11) is formed on the driving block (8). The driving block (11) and the inclined tooth groove (13) are both arranged in a ring shape. A driving spring (14) is arranged between the driving block (8) and the rotating shaft (2).

3. The folding structure of the front armrest of the baby stroller according to claim 1, characterized in that: A driven spring (15) is arranged between the clamping block (9) and the driven shaft (3). One end of the driving block (11) is fixedly connected with at least one driving rod (16). After passing through the rotating shaft (2), the driving rod (16) is in contact and cooperation with the surface of the clamping block (9).

4. The folding structure of the front armrest of the baby stroller according to claim 3, characterized in that: The number of the driving rods (16) is three. Three sliding holes (17) corresponding to the driving rods (16) are formed on the rotating shaft (2). The driving rods (16) are slidably connected with the sliding holes (17).

5. The folding structure of the front armrest of the baby stroller according to claim 4, wherein: A circular ring groove (18) corresponding to the driving rod (16) is formed on one side of the clamping block (9).

6. The folding structure of the front armrest of the baby stroller according to claim 1, characterized in that: A sliding tube (19) is slidably connected to the back frame (7). The sliding tube (19) is rotatably connected to one end of the side frame (6); The limiting device (12) includes a plug block (121) slidably arranged on the back frame (7). The other end of the plug block (121) is connected to the inner side of the back frame (7) through a spring (122). A jack (123) corresponding to the plug block (121) is formed on the sliding tube (19).

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