Baby carriage seat backrest adjusting mechanism

Abstract

The utility model relates to the technical field of baby carriage adjusting accessories, and discloses a baby carriage seat backrest adjusting mechanism which comprises a seat frame, the front end of the seat frame is fixedly connected with a fixing box, a protective handrail is arranged above the seat frame, the front end of the protective handrail is fixedly connected with an annular plate, and the annular plate is fixedly connected with a backrest. A backrest frame is arranged above the protective armrests, the front end of the backrest frame is fixedly connected with a rotating box, and a clamping unit is arranged in the fixing box. According to the utility model, through the cooperation of the fixed box, the clamping unit, the arc-shaped groove, the locking clamping groove, the annular plate, the rotating clamping groove, the arc-shaped plate and the rotating box, the backrest frame can quickly rotate relative to the seat frame, and the clamping and limiting of the protective armrests and the locking box can be relieved at one time in the rotating process; the protective handrail can be rotationally stored, the whole seat can be rotationally stored relative to the frame, and the whole storage space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to baby carriage adjusting accessory technical field especially, it relates to a baby carriage seat backrest adjusting mechanism. BACKGROUND

[0002] Baby carriage is a tool car designed for baby outdoor activities, has various car types, will bring certain benefit to child intelligence development, increases the brain development of children, is the most favorite walking traffic tool of baby, is also the necessity when mom takes baby to go shopping.

[0003] And the seat of the existing baby carriage in the actual use process, the protective handrail used will be fixedly installed with the bottom cushion frame, in the process of quick storage, only the backrest is rotated, and the handrail still keeps the inclined straight state relative to the cushion frame, so that the seat still occupies a larger space after storage, and the adjusting structure used is more complex to use, needs to be stored in multiple steps, and it is more inconvenient to use, therefore, a baby carriage seat backrest adjusting mechanism is proposed to solve the above problems. UTILITARIAN CONTENT

[0004] In order to make up for the above shortage, the utility model provides a baby carriage seat backrest adjusting mechanism, which aims at improving the problem that the existing technology still occupies a larger space when being stored, and the storage operation is inconvenient.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a baby carriage seat backrest adjusting mechanism, including seat frame, the front end of the seat frame is fixedly connected with fixed box, the side surface of the fixed box away from the center of the seat frame is rotatably connected with locking box, the upper portion of the seat frame is provided with protective handrail, the front end of the protective handrail is fixedly connected with annular plate, the upper portion of the protective handrail is provided with backrest frame, the front end of the backrest frame is fixedly connected with rotating box, the rotating box is rotatably connected with annular plate, the inside of annular plate and rotating box is rotatably connected, the inside of the fixed box is provided with clamping unit, the clamping unit is used for clamping and limiting annular plate and locking box.

[0006] As a further description of the above technical scheme:

[0007] The side surface of the locking box close to the fixed box is provided with arc-shaped groove, and the inner wall surface of the arc-shaped groove is provided with locking slot.

[0008] As a further description of the above technical scheme:

[0009] The inner wall surface of the annular plate is provided with rotating slot, and the inside of the rotating box is fixedly connected with arc-shaped plate.

[0010] As a further description of the above technical scheme:

[0011] The clamping unit comprises a fixing rod fixedly connected in the interior of the fixing box, a Z-shaped clamping block provided on the outer side of the fixing rod, a clamping spring fixedly connected to the side surface of the Z-shaped clamping block close to the fixing rod, and a limiting groove opened in the side surface of the fixing box close to the locking box.

[0012] As a further description of the above technical solution:

[0013] The end of the clamping spring away from the Z-shaped clamping block is fixedly connected to the fixing rod, the end of the Z-shaped clamping block close to the locking box penetrates the limiting groove, and the Z-shaped clamping block is slidingly connected to the interior of the limiting groove.

[0014] As a further description of the above technical solution:

[0015] The end of the Z-shaped clamping block close to the locking box is clamped to the interior of the locking clamping groove, the end of the Z-shaped clamping block away from the locking box is clamped to the interior of the rotating clamping groove, and the end of the Z-shaped clamping block away from the locking box is mutually attached to the inner wall of the arc-shaped plate.

[0016] As a further description of the above technical solution:

[0017] The interior of the locking box is fixedly connected with a plug-in box, the left and right side surfaces of the plug-in box are both provided with a sliding groove, the interior of the sliding groove is slidingly connected with a moving cylinder, the front surface of the moving cylinder is fixedly connected with a connecting rod, the interior of the moving cylinder is fixedly connected with a locking spring, the outer side of the plug-in box is sleeved with a moving box, the front upper side of the moving box is provided with a pulling groove, and the front left and right sides of the moving box are both provided with a through groove.

[0018] As a further description of the above technical solution:

[0019] The moving box is sleeved with the interior of the locking box, the width of the through groove gradually decreases from top to bottom, the connecting rod is located in the interior of the through groove, and the end of the locking spring away from the moving cylinder is fixedly connected to the inner wall of the locking box.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, the fixing box, the clamping unit, the arc-shaped groove, the locking clamping groove, the annular plate, the rotating clamping groove, the arc-shaped plate and the rotating box are matched, so that the backrest frame can be quickly rotated relative to the seat frame, the clamping and limiting of the protective handrail and the locking box can be released at one time during the rotation, the protective handrail can also be rotated and stored, the seat as a whole can be rotated and stored relative to the frame, the storage space of the whole is reduced, and the portability and practicality of the whole are improved.

[0022] 2、The utility model discloses, through the cooperation of the plug-in box, the moving cylinder, the connecting rod, the locking spring and the moving box etc. structure's cooperation, make seat whole can be relative to the frame quick installation and removal, direct plug-in can complete installation, pull the moving box and can complete disassembly, simple operation, simple structure, strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the whole schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes;

[0024] Figure 2 It is the schematic diagram of the locking box of the baby carriage seat backrest adjusting mechanism that the utility model proposes;

[0025] Figure 3 It is the schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes; Figure 1 part A place;

[0026] Figure 4 It is the schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes;

[0027] Figure 5 It is the schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes; Figure 4 part cutaway;

[0028] Figure 6 It is the schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes;

[0029] Figure 7 It is the schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes;

[0030] Figure 8 It is the schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes;

[0031] Figure 9 It is the schematic diagram of the baby carriage seat backrest adjusting mechanism that the utility model proposes; Figure 8 part B place.

[0032] LEGEND:

[0033] 1, seat frame; 2, fixed box; 21, fixed rod; 22, Z-shaped clamping block; 23, clamping spring; 24, limiting groove; 3, locking box; 31, arc-shaped groove; 32, locking clamping groove; 4, protective handrail; 5, annular plate; 51, rotating clamping groove; 6, backrest frame; 7, rotating box; 71, arc-shaped plate; 8, plug-in box; 81, sliding groove; 82, moving cylinder; 83, connecting rod; 84, locking spring; 9, moving box; 91, pulling groove; 92, through groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] With reference to Figures 1-3 , the utility model provides an embodiment: a baby carriage seat backrest adjusting mechanism, including seat frame 1, the front end of seat frame 1 is fixedly connected with fixed box 2, the side surface of fixed box 2 away from the center of seat frame 1 is rotatably connected with locking box 3, the structure arranged in locking box 3 and its inside is used for fixing the whole seat, can be with the locking plate that the prearranged on the carriage is inserted into locking box 3 inside and is fixed, then the clamping fixing of the whole seat is realized, the side surface of locking box 3 close to fixed box 2 is provided with arc-shaped groove 31, the inner wall surface of arc-shaped groove 31 is provided with locking clamping groove 32.

[0036] With reference to Figures 4-6 , the upper portion of seat frame 1 is provided with protective handrail 4, the front end of protective handrail 4 is fixedly connected with annular plate 5, when protective handrail 4 rotates, annular plate 5 is driven to rotate synchronously, and when annular plate 5 is limited, protective handrail 4 is fixed synchronously, so that the stable use of protective handrail 4 is realized, the inner wall surface of annular plate 5 is provided with rotating clamping groove 51, and the upper portion of protective handrail 4 is provided with backrest frame 6.

[0037] With reference to Figure 5 and Figure 7The front end of the backrest frame 6 is fixedly connected with a rotating box 7, the inside of the rotating box 7 is fixedly connected with an arc-shaped plate 71, the arc-shaped plate 71 is closer and closer to the center of the rotating box 7 in the counterclockwise direction, when the backrest frame 6 rotates, the rotating box 7 and the arc-shaped plate 71 rotate synchronously, the rotating box 7 is rotationally connected with the annular plate 5, the annular plate 5 is rotationally connected with the inside of the rotating box 7, so that the backrest frame 6 and the protective handrail 4 can be rotationally adjusted and stored relative to the seat frame 1, the use limit between the backrest frame 6 and the seat frame 1 can be realized by externally arranging cloth, so as to avoid the influence on use caused by the arbitrary rotation between the backrest frame 6 and the seat frame 1.

[0038] Referring to Figures 4-5 The inside of the fixed box 2 is provided with a clamping unit, the clamping unit comprises a fixed rod 21 fixedly connected in the inside of the fixed box 2, the outside of the fixed rod 21 is provided with a Z-shaped clamping block 22, the side surface close to the fixed rod 21 of the Z-shaped clamping block 22 is fixedly connected with a clamping spring 23, one end of the clamping spring 23 away from the Z-shaped clamping block 22 is fixedly connected with the fixed rod 21, when the Z-shaped clamping block 22 moves to the fixed rod 21, the clamping spring 23 is extruded, so that the clamping spring 23 is compressed to generate elastic potential energy, one end of the Z-shaped clamping block 22 close to the locking box 3 penetrates the limiting groove 24, the Z-shaped clamping block 22 is slidingly connected with the inside of the limiting groove 24.

[0039] The limiting groove 24 can guide and limit the movement of the Z-shaped clamping block 22, so that the Z-shaped clamping block 22 can only move linearly along the path of the limiting groove 24, avoiding deviation, and at the same time, avoiding the influence of the fixed box 2 on the movement of the Z-shaped clamping block 22, the side surface close to the locking box 3 of the fixed box 2 is provided with the limiting groove 24, one end of the Z-shaped clamping block 22 close to the locking box 3 is clamped with the inside of the locking clamping groove 32, the size of the arc-shaped groove 31 and the size of the Z-shaped clamping block 22 are matched with each other, one end of the Z-shaped clamping block 22 away from the locking box 3 is clamped with the inside of the rotating clamping groove 51, and one end of the Z-shaped clamping block 22 away from the locking box 3 is matched with the inner wall of the arc-shaped plate 71.

[0040] When the backrest frame 6 is rotated relative to the seat frame 1 to the vertical state, the arc-shaped plate 71 is separated from the arc-shaped plate 71, at which time the Z-shaped block 22 is not extruded by the arc-shaped plate 71, and the end close to the locking box 3 is clamped with the inside of the locking slot 32, and the end away from the locking box 3 is clamped with the inside of the rotating slot 51. When the backrest frame 6 is rotated clockwise to be stored close to the seat frame 1, the arc-shaped plate 71 is synchronously rotated clockwise, and in this process, the arc-shaped plate 71 gradually extrudes the Z-shaped block 22, so that the Z-shaped block 22 moves to the fixed rod 21, and then the Z-shaped block 22 gradually leaves the inside of the locking slot 32 and the rotating slot 51. At this time, the end of the Z-shaped block 22 enters the inside of the arc-shaped slot 31, and can be rotated and moved along the path of the arc-shaped slot 31, thereby releasing the clamping and fixing between the fixed box 2, the annular plate 5 and the locking box 3, so that the protective handrail 4 and the locking box 3 can also be rotated and stored relative to the seat frame 1. The user can complete the storage of the seat as a whole by pushing the backrest frame 6, and at the same time, the seat as a whole can also be rotated and stored relative to the frame, further reducing the storage space, improving portability and practicality.

[0041] With reference to Figure 1 , Figure 8 and Figure 9 , the inside of the locking box 3 is fixedly connected with the plug-in box 8, the left and right surfaces of the plug-in box 8 are provided with sliding grooves 81, the inside of the sliding groove 81 is slidably connected with a moving cylinder 82, the moving cylinder 82 can move linearly in the left and right directions inside the sliding groove 81, the front of the moving cylinder 82 is fixedly connected with a connecting rod 83, the moving cylinder 82 moves to drive the connecting rod 83 to move synchronously, the inside of the moving cylinder 82 is fixedly connected with a locking spring 84, the end of the locking spring 84 away from the moving cylinder 82 is fixedly connected with the inner wall of the locking box 3. In the initial state, the moving cylinder 82 penetrates the plug-in box 8 under the elastic potential energy of the locking spring 84. When the locking plate is inserted into the plug-in box 8, the moving cylinder 82 is clamped into the clamping groove provided on the left and right sides of the locking plate under the elastic potential energy of the locking spring 84 to clamp and fix the locking plate, thereby quickly realizing the connection between the seat and the frame.

[0042] The outside of the plug-in box 8 is sleeved with a moving box 9, the moving box 9 is sleeved with the inside of the locking box 3, the width of the through groove 92 gradually decreases from top to bottom, the front upper side of the moving box 9 is provided with a pulling groove 91, the front left and right sides of the moving box 9 are provided with through grooves 92, the connecting rod 83 is located in the through groove 92, and the user can quickly pull the moving box 9 through the pulling groove 91. When the moving box 9 moves upward, the through groove 92 moves upward relative to the connecting rod 83, at which time the through groove 92 gradually extrudes the connecting rod 83, so that the connecting rod 83 moves to the locking spring 84, away from the locking plate, and the clamping and fixing of the locking plate is released, thereby facilitating the disassembly of the seat as a whole.

[0043] Working principle: in use, the plug-in box 8 can be aligned with the locking plate on the frame and inserted, and in the process of insertion, the moving cylinder 82 will be clamped into the clamping groove on the left and right sides of the locking plate under the elastic potential energy of the locking spring 84, realizing the clamping and fixing of the locking plate, quickly completing the connection between the seat and the frame, when the seat needs to be stored, the user directly pushes the backrest frame 6 to the seat frame 1 to move, which can drive the arc plate 71 to rotate, so that the arc plate 71 extrudes the Z-shaped clamping block 22, and the Z-shaped clamping block 22 moves to the fixed rod 21, away from the inside of the locking clamping groove 32 and the rotating clamping groove 51, which can one-time release the clamping and fixing between the protective handrail 4 and the locking box 3 relative to the fixed box 2, so that the protective handrail 4 can also be rotated and stored relative to the seat frame 1, reducing the storage space, and at the same time, the seat as a whole can be rotated and stored relative to the frame, further reducing the storage space, improving the portability and practicality of the whole.

[0044] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A pushchair seat backrest adjustment mechanism comprising a seat frame (1), characterised in that: The front end of the seat frame (1) is fixedly connected with a fixed box (2), one side surface of the fixed box (2) away from the center of the seat frame (1) is rotatably connected with a locking box (3), the upper portion of the seat frame (1) is provided with a protective handrail (4), the front end of the protective handrail (4) is fixedly connected with an annular plate (5), the upper portion of the protective handrail (4) is provided with a backrest frame (6), the front end of the backrest frame (6) is fixedly connected with a rotating box (7), the rotating box (7) is rotatably connected with the annular plate (5), the annular plate (5) is rotatably connected with the inside of the rotating box (7), the inside of the fixed box (2) is provided with a clamping unit, and the clamping unit is used for clamping and limiting the annular plate (5) and the locking box (3).

2. A pushchair seat backrest adjustment mechanism according to claim 1, characterised in that: The locking box (3) is provided with an arc-shaped groove (31) on one side surface close to the fixed box (2), and the inner wall surface of the arc-shaped groove (31) is provided with a locking clamping groove (32).

3. A stroller seat backrest adjustment mechanism according to claim 1, characterized in that: The inner wall surface of the annular plate (5) is provided with a rotating clamping groove (51), and the inside of the rotating box (7) is fixedly connected with an arc-shaped plate (71).

4. A stroller seat backrest adjustment mechanism according to claim 1, characterized in that: The clamping unit comprises a fixed rod (21), the fixed rod (21) is fixedly connected in the inside of the fixed box (2), the outer side of the fixed rod (21) is provided with a Z-shaped clamping block (22), one side surface of the Z-shaped clamping block (22) close to the fixed rod (21) is fixedly connected with a clamping spring (23), and one side surface of the fixed box (2) close to the locking box (3) is provided with a limiting groove (24).

5. A pushchair seat backrest adjustment mechanism according to claim 4, wherein: One end of the clamping spring (23) away from the Z-shaped clamping block (22) is fixedly connected with the fixed rod (21), one end of the Z-shaped clamping block (22) close to the locking box (3) penetrates into the limiting groove (24), and the Z-shaped clamping block (22) is slidably connected with the inside of the limiting groove (24).

6. A pushchair seat backrest adjustment mechanism according to claim 4, wherein: One end of the Z-shaped clamping block (22) close to the locking box (3) is clamped with the inside of the locking clamping groove (32), one end of the Z-shaped clamping block (22) away from the locking box (3) is clamped with the inside of the rotating clamping groove (51), and one end of the Z-shaped clamping block (22) away from the locking box (3) is mutually attached with the inner wall of the arc-shaped plate (71).

7. A stroller seat backrest adjustment mechanism according to claim 1, characterized in that: The inside of the locking box (3) is fixedly connected with a plug-in box (8), the left and right side surfaces of the plug-in box (8) are both provided with a sliding groove (81), the inside of the sliding groove (81) is slidably connected with a moving cylinder (82), the front surface of the moving cylinder (82) is fixedly connected with a connecting rod (83), the inside of the moving cylinder (82) is fixedly connected with a locking spring (84), the outer side of the plug-in box (8) is sleeved with a moving box (9), the front surface of the upper side of the moving box (9) is provided with a pulling groove (91), and the front surface of the left and right sides of the moving box (9) is provided with a through groove (92).

8. A pushchair seat backrest adjustment mechanism according to claim 7, wherein: The moving box (9) is sleeved with the inside of the locking box (3), the width of the through groove (92) gradually decreases from top to bottom, the connecting rod (83) is located in the inside of the through groove (92), and one end of the locking spring (84) away from the moving cylinder (82) is fixedly connected with the inner wall of the locking box (3).

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