Baby stroller frame body structure and baby stroller

Abstract

The utility model provides a baby stroller frame body structure and a baby stroller, and belongs to the technical field of baby strollers, the baby stroller frame body structure comprises a base provided with a limiting groove; the first arm body is rotatably connected with the base; the second arm body is rotatably connected with the base; a first linkage part and a second linkage part are arranged at the two ends of the first connecting rod respectively; a third linkage part and a fourth linkage part are arranged at the two ends of the second connecting rod respectively; and the linkage piece penetrates through the second linkage part, the limiting groove and the fourth linkage part. The utility model has the beneficial effects that when the first arm body rotates relative to the base, the linkage piece is driven by the first connecting rod to move along the length direction of the limiting groove, and the second arm body is driven by the second connecting rod to rotate relative to the base, so that the first arm body and the second arm body always keep the same rotation; and the condition that one of the two is accidentally opened after the folding is not easy to occur.

Description

Technical Field

[0001] The utility model belongs to the technical field of child strollers and relates to a child stroller frame structure and a child stroller. Background Art

[0002] A child stroller is a tool vehicle designed to provide convenience for children's outdoor activities. Families who take their children out usually use a child stroller, which can not only reduce the burden of taking care of the children, but also give the children a comfortable feeling. However, due to its large size, a child stroller occupies a large space when placed at home. Therefore, existing child strollers are basically foldable child strollers.

[0003] In the prior art, the folding structures of various parts of the baby stroller are independent of each other, so that the front legs, rear legs, handlebars and other rods of the baby stroller cannot be linked together, resulting in an unstable state of the baby stroller after being folded. The front legs, rear legs, handlebars and other rods of the baby stroller are very likely to open accidentally after being folded, which in turn causes inconvenience in carrying or transporting the baby stroller. At the same time, there are certain safety hazards, and there is a lot of room for improvement. Summary of the invention

[0004] The purpose of the utility model is to solve the above problems in the prior art and to provide a child stroller frame structure and a child stroller.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a child stroller frame structure, comprising:

[0006] A base, which is provided with a limiting groove;

[0007] A first arm body, which is rotatably connected to the base, and the first arm body is provided with a first driving part;

[0008] A second arm body, which is rotatably connected to the base, and the second arm body is provided with a second driving part;

[0009] A first connecting rod, with a first linkage part and a second linkage part respectively disposed at both ends thereof, wherein the first linkage part is rotatably connected to the first driving part;

[0010] A second connecting rod, having a third linkage part and a fourth linkage part at both ends thereof, wherein the third linkage part is rotatably connected to the second driving part;

[0011] A linkage member passes through the second linkage portion, the limiting groove and the fourth linkage portion, and the linkage member can move along the length direction of the limiting groove.

[0012] In the above-mentioned child stroller frame structure, a first locking block is further included. The base includes a locking position and an unlocking position. The first locking block can move to the unlocking position or the locking position. The limiting groove includes a receiving position and an unfolding position. When the first locking block is at the unlocking position, the linkage member can move between the receiving position and the unfolding position. When the first locking block is at the locking position, the movement of the linkage member between the receiving position and the unfolding position is blocked.

[0013] In the above-mentioned child stroller frame structure, a first return spring is further included. The first return spring is located between the first locking block and the base. One end of the first return spring contacts the base, and the other end of the first return spring contacts the first locking block. The first return spring pushes the first locking block to move from the unlocking position towards the locking position.

[0014] In the above-mentioned child stroller frame structure, the first locking block is provided with an unlocking inclined surface. When the linkage member moves from the receiving position towards the unfolding position, it passes through the unlocking inclined surface and pushes the first locking block to move from the locking position towards the unlocking position through the unlocking inclined surface.

[0015] In the above-mentioned child stroller frame structure, a first unlocking block is further included. The first unlocking block is movably connected to the base. The first locking block is provided with a linkage inclined surface, and the first unlocking block is provided with a driving inclined surface. The driving inclined surface contacts the linkage inclined surface. When the first unlocking block moves towards the first locking block, it drives the linkage inclined surface to move through the driving inclined surface and pushes the first locking block to move from the locking position towards the unlocking position through the linkage inclined surface.

[0016] In the above-mentioned child stroller frame structure, a fixed seat, a first rotating seat, and a trigger block are further included. The fixed seat is connected to the base. The first rotating seat is rotatably connected to the fixed seat. The first rotating seat is provided with a first trigger surface. The trigger block can move along the radial direction of the fixed seat. The trigger block is provided with a second trigger surface and a trigger post. The trigger post contacts the first unlocking block. When the first rotating seat rotates relative to the fixed seat in one direction, it drives the second trigger surface to contact the first trigger surface and pushes the trigger block towards the fixed seat through the first trigger surface, thereby pushing the first unlocking block towards the first locking block.

[0017] In the above-mentioned child stroller frame structure, a second rotating seat is further included. The second rotating seat is located between the fixed seat and the first rotating seat. The second rotating seat is rotatably connected to the fixed seat, and the first rotating seat is rotatably connected to the second rotating seat. The second rotating seat is provided with a locking groove, and the fixed seat is provided with an unlocking groove. The trigger block can move between the locking groove and the unlocking groove. The width of the trigger block is greater than the depth of the locking groove, and the width of the trigger block is not greater than the depth of the unlocking groove. When the trigger block contacts the bottom of the locking groove, the rotation of the second rotating seat is restricted. When the trigger block contacts the bottom of the unlocking groove, the second rotating seat can rotate.

[0018] In the above-mentioned child stroller frame structure, a second return spring is included. The second return spring is located between the fixed seat and the trigger block. One end of the second return spring contacts the bottom of the unlocking groove, and the other end of the second return spring contacts the trigger block. The second return spring pushes the trigger block close to the second rotating seat.

[0019] Secondly, a child stroller includes the above-mentioned child stroller frame structure.

[0020] Secondly, in the above-mentioned child stroller, a rear frame, a front frame and a handrail frame are further included. The base is connected to the rear frame, the first arm body is connected to the front frame, and the second arm body is connected to the handrail frame.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. When the first arm body rotates relative to the base, the first link drives the linkage member to move along the length direction of the limiting groove, and the second link drives the second arm body to rotate relative to the base, so that the first arm body and the second arm body always maintain the same rotation, and it is not easy to occur the situation that one of them accidentally opens after folding.

[0023] 2. The movement of the first locking block between the locking position and the unlocking position can open or block the movement of the linkage member between the storage position and the deployment position. Therefore, by controlling the first locking block, the situation that the linkage member moves freely and causes the first arm body or the second arm body to accidentally open can be avoided.

[0024] 3. The first return spring pushes the first locking block to move from the unlocking position towards the locking position. Therefore, in the absence of external force, the first locking block is always located at the locking position due to the elastic force of the first return spring.

[0025] 4. When the linkage moves from the storage position towards the deployment position, it passes through the unlocking inclined plane and pushes the first locking block to move from the locking position towards the unlocking position via the unlocking inclined plane. Through the unlocking inclined plane, when the stroller frame structure of the present utility model is switched from the storage state to the deployment state, there is no need for additional unlocking operations such as pressing.

[0026] 5. When the first unlocking block moves towards the first locking block, it drives the linkage inclined plane to move via the driving inclined plane, and pushes the first locking block to move from the locking position towards the unlocking position via the linkage inclined plane. The movement of the first locking block between the locking position and the unlocking position is controlled by the first unlocking block.

[0027] 6. When the first rotating seat rotates relative to the fixed seat in one direction, it drives the second triggering surface to contact the first triggering surface, and pushes the trigger block away from the first rotating seat via the first triggering surface, thereby pushing the first unlocking block towards the first locking block. The triggering of the first unlocking block is achieved by the rotation of the first rotating seat relative to the fixed seat, without manually pressing the first unlocking block.

[0028] 7. When the trigger block contacts the bottom of the unlocking groove, it can not only push the first unlocking block towards the first locking block to achieve the triggering of the first unlocking block by the rotation of the first rotating seat relative to the fixed seat, but also unlock the second rotating seat to be rotatable, simultaneously unlocking two components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural view of the stroller frame structure of the present utility model.

[0030] Figure 2 It is an exploded view of the stroller frame structure of the present utility model.

[0031] Figure 3 It is an exploded view of the stroller frame structure of the present utility model from another perspective.

[0032] Figure 4 It is an exploded view of the base, the first arm body, the second arm body, the first link, the second link and the linkage of the present utility model.

[0033] Figure 5 It is an exploded view of the base, the first arm body, the second arm body, the first link, the second link and the linkage of the present utility model from another perspective.

[0034] Figure 6 It is a schematic structural view of the base, the first arm body, the second arm body, the first link, the second link and the linkage of the present utility model.

[0035] Figure 7Structural schematic diagram of the base, the first arm body, the second arm body, the first connecting rod, the second connecting rod and the linkage member of the present utility model from another perspective.

[0036] Figure 8 Structural schematic diagram of the fixed seat, the first rotating seat and the second rotating seat of the present utility model.

[0037] Figure 9 Exploded view of the fixed seat, the first rotating seat and the second rotating seat of the present utility model.

[0038] Figure 10 Exploded view of the fixed seat, the first rotating seat and the second rotating seat of the present utility model from another perspective.

[0039] Figure 11 Structural schematic diagram of the trigger block of the present utility model.

[0040] Figure 12 Structural schematic diagram of the baby stroller of the present utility model.

[0041] In the figure, 100, base; 110, limit groove; 200, first arm body; 210, first driving part; 300, second arm body; 310, second driving part; 400, first connecting rod; 410, first linkage part; 420, second linkage part; 500, second connecting rod; 510, third linkage part; 520, fourth linkage part; 600, linkage member; 700, first locking block; 710, unlocking inclined surface; 720, linkage inclined surface; 800, first return spring; 900, first unlocking block; 910, driving inclined surface; 1000, fixed seat; 1010, unlocking groove; 1100, first rotating seat; 1110, first triggering surface; 1200, trigger block; 1210, second triggering surface; 1220, trigger post; 1300, second rotating seat; 1310, locking groove; 1400, second return spring; 1500, rear frame; 1600, front frame; 1700, armrest frame; 1800, backrest frame; 1900, seat frame. Detailed implementation manners

[0042] The following are specific embodiments of the present utility model and in conjunction with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0043] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0044] In addition, in the present utility model, descriptions such as "first", "second", and "one" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to substitute them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0048] As Figures 1 - 11 shown, a stroller frame structure for children includes: a base 100, a first arm body 200, a second arm body 300, a first link 400, a second link 500, and a linkage member 600.

[0049] Among them, the base 100 is provided with a limiting groove 110.

[0050] Among them, the first arm body 200 is rotatably connected to the base 100, and the first arm body 200 is provided with a first driving portion 210.

[0051] Among them, the second arm body 300 is rotatably connected to the base 100, and the second arm body 300 is provided with a second driving portion 310.

[0052] Among them, a first linkage part 410 and a second linkage part 420 are respectively arranged at two ends of the first connecting rod 400, and the first linkage part 410 is rotatably connected to the first driving part 210.

[0053] Among them, a third linkage part 510 and a fourth linkage part 520 are respectively arranged at two ends of the second connecting rod 500, and the third linkage part 510 is rotatably connected to the second driving part 310.

[0054] Among them, the linkage member 600 passes through the second linkage part 420, the limiting groove 110 and the fourth linkage part 520, and the linkage member 600 can move along the length direction of the limiting groove 110.

[0055] In this embodiment, when the first arm body 200 rotates relative to the base 100, the linkage member 600 is driven by the first connecting rod 400 to move along the length direction of the limiting groove 110, and the second arm body 300 is driven by the second connecting rod 500 to rotate relative to the base 100, so that the first arm body 200 and the second arm body 300 always maintain the same rotation, and it is not easy for one of them to accidentally open after being folded.

[0056] As Figures 1 - 11 shown, on the basis of the above embodiment, a first locking block 700 is further included. The base 100 includes a locking position and an unlocking position. The first locking block 700 can move to the unlocking position or the locking position. The limiting groove 110 includes a receiving position and an unfolding position. When the first locking block 700 is located at the unlocking position, the linkage member 600 can move between the receiving position and the unfolding position. When the first locking block 700 is located at the locking position, the movement of the linkage member 600 between the receiving position and the unfolding position is blocked.

[0057] In this embodiment, the movement of the first locking block 700 between the locking position and the unlocking position can open or block the movement of the linkage member 600 between the receiving position and the unfolding position. Therefore, it is possible to avoid the situation that the first arm body 200 or the second arm body 300 accidentally opens due to the free movement of the linkage member 600 by controlling the first locking block 700.

[0058] As Figures 1 - 11 shown, on the basis of the above embodiment, a first return spring 800 is further included. The first return spring 800 is located between the first locking block 700 and the base 100. One end of the first return spring 800 contacts the base 100, and the other end of the first return spring 800 contacts the first locking block 700. The first return spring 800 pushes the first locking block 700 to move from the unlocking position towards the locking position.

[0059] In this embodiment, the first return spring 800 pushes the first locking block 700 to move from the unlocking position towards the locking position. Therefore, when no external force is applied, the first locking block 700 is always located at the locking position due to the elastic force of the first return spring 800.

[0060] As Figures 1 - 11 shown, based on the above embodiment, the first locking block 700 is provided with an unlocking inclined surface 710. When the linkage member 600 moves from the storage position towards the deployment position, it passes through the unlocking inclined surface 710 and pushes the first locking block 700 to move from the locking position towards the unlocking position through the unlocking inclined surface 710.

[0061] In this embodiment, when the linkage member 600 moves from the storage position towards the deployment position, it passes through the unlocking inclined surface 710 and pushes the first locking block 700 to move from the locking position towards the unlocking position through the unlocking inclined surface 710. By means of the unlocking inclined surface 710, when the stroller frame structure of the child moves from the storage state to the deployment state, no additional unlocking operations such as pressing are required.

[0062] As Figures 1 - 11 shown, based on the above embodiment, it further includes a first unlocking block 900. The first unlocking block 900 is movably connected to the base 100. The first locking block 700 is provided with a linkage inclined surface 720, and the first unlocking block 900 is provided with a driving inclined surface 910. The driving inclined surface 910 is in contact with the linkage inclined surface 720. When the first unlocking block 900 moves towards the first locking block 700, it drives the linkage inclined surface 720 to move through the driving inclined surface 910, and pushes the first locking block 700 to move from the locking position towards the unlocking position through the linkage inclined surface 720.

[0063] In this embodiment, when the first unlocking block 900 moves towards the first locking block 700, it drives the linkage inclined surface 720 to move through the driving inclined surface 910, and pushes the first locking block 700 to move from the locking position towards the unlocking position through the linkage inclined surface 720. By means of the first unlocking block 900, the movement of the first locking block 700 between the locking position and the unlocking position is controlled.

[0064] As Figures 1 - 11As shown, on the basis of the above-described embodiment, it further includes a fixed seat 1000, a first rotating seat 1100, and a trigger block 1200. The fixed seat 1000 is connected to the base 100. The first rotating seat 1100 is rotatably connected to the fixed seat 1000. The first rotating seat 1100 is provided with a first trigger surface 1110. The trigger block 1200 is movable along the radial direction of the fixed seat 1000. The trigger block 1200 is provided with a second trigger surface 1210 and a trigger post 1220. The trigger post 1220 contacts the first unlocking block 900. When the first rotating seat 1100 rotates in one direction relative to the fixed seat 1000, it drives the second trigger surface 1210 to contact the first trigger surface 1110, and pushes the trigger block 1200 closer to the fixed seat 1000 through the first trigger surface 1110, thereby pushing the first unlocking block 900 to move in the direction close to the first locking block 700.

[0065] In this embodiment, when the first rotating seat 1100 rotates in one direction relative to the fixed seat 1000, it drives the second trigger surface 1210 to contact the first trigger surface 1110, and pushes the trigger block 1200 closer to the fixed seat 1000 through the first trigger surface 1110, thereby pushing the first unlocking block 900 to move in the direction close to the first locking block 700. The triggering of the first unlocking block 900 is achieved by the rotation of the first rotating seat 1100 relative to the fixed seat 1000, without manually pressing the first unlocking block 900.

[0066] As Figures 1 - 11 shown, on the basis of the above-described embodiment, it further includes a second rotating seat 1300. The second rotating seat 1300 is located between the fixed seat 1000 and the first rotating seat 1100. The second rotating seat 1300 is rotatably connected to the fixed seat 1000. The first rotating seat 1100 is rotatably connected to the second rotating seat 1300. The second rotating seat 1300 is provided with a locking groove 1310. The fixed seat 1000 is provided with an unlocking groove 1010. The trigger block 1200 is movable between the locking groove 1310 and the unlocking groove 1010. The width of the trigger block 1200 is greater than the depth of the locking groove 1310. The width of the trigger block 1200 is not greater than the depth of the unlocking groove 1010. When the trigger block 1200 contacts the bottom of the locking groove 1310, the rotation of the second rotating seat 1300 is restricted. When the trigger block 1200 contacts the bottom of the unlocking groove 1010, the second rotating seat 1300 can rotate.

[0067] It should be noted here that since the width of the trigger block 1200 is greater than the depth of the locking slot 1310 and not greater than the depth of the unlocking slot 1010, when the trigger block 1200 contacts the bottom of the locking slot 1310, a part of the trigger block 1200 is located in the locking slot 1310 and the other part is located in the unlocking slot 1010. Therefore, the second rotating seat 1300 is restricted from rotating. When the trigger block 1200 contacts the bottom of the unlocking slot 1010, the trigger block 1200 is completely located in the unlocking slot 1010. Therefore, the second rotating seat 1300 can rotate.

[0068] In this embodiment, when the trigger block 1200 contacts the bottom of the unlocking slot 1010, not only can it push the first unlocking block 900 to move towards the first locking block 700, and the triggering of the first unlocking block 900 is achieved by the rotation of the first rotating seat 1100 relative to the fixed seat 1000, but also the second rotating seat 1300 is unlocked and can rotate, simultaneously achieving the unlocking of two components.

[0069] As Figures 1 - 11 shown, on the basis of the above embodiment, it includes a second return spring 1400. The second return spring 1400 is located between the fixed seat 1000 and the trigger block 1200. One end of the second return spring 1400 contacts the bottom of the unlocking slot 1010, and the other end of the second return spring 1400 contacts the trigger block 1200. The second return spring 1400 pushes the trigger block 1200 towards the second rotating seat 1300.

[0070] In this embodiment, the second return spring 1400 pushes the trigger block 1200 towards the second rotating seat 1300. Therefore, when there is no external force, due to the elastic force of the second return spring 1400, the trigger block 1200 always contacts the bottom of the locking slot 1310. A part of the trigger block 1200 is located in the locking slot 1310 and the other part is located in the unlocking slot 1010. Therefore, the second rotating seat 1300 is restricted from rotating.

[0071] As Figures 1 - 12 shown, a baby stroller includes the above-mentioned baby stroller frame structure.

[0072] Specifically, it further includes a rear frame 1500, a front frame 1600, and an armrest frame 1700. The base 100 is connected to the rear frame 1500, the first arm body 200 is connected to the front frame 1600, and the second arm body 300 is connected to the armrest frame 1700.

[0073] More specifically, the fixed seat 1000 is detachably connected to the base 100.

[0074] More specifically, it further includes a backrest frame 1800 and a seat frame 1900. The first rotating seat 1100 is connected to the backrest frame 1800, and the second rotating seat 1300 is connected to the seat frame 1900.

[0075] More specifically, the first rotating seat 1100 can rotate independently relative to the backrest frame 1800.

Claims

1. A child stroller frame structure, characterized in that: include: A base, which is provided with a limiting groove; A first arm body, which is rotatably connected to the base, and the first arm body is provided with a first driving part; A second arm body, which is rotatably connected to the base, and the second arm body is provided with a second driving part; A first connecting rod, with a first linkage part and a second linkage part respectively disposed at both ends thereof, wherein the first linkage part is rotatably connected to the first driving part; A second connecting rod, having a third linkage part and a fourth linkage part at both ends thereof, wherein the third linkage part is rotatably connected to the second driving part; A linkage member passes through the second linkage portion, the limiting groove and the fourth linkage portion, and the linkage member can move along the length direction of the limiting groove.

2. A child stroller frame structure as claimed in claim 1, characterized in that: It also includes a first locking block, the base includes a locking position and an unlocking position, the first locking block can be moved to the unlocking position or the locking position, the limiting groove includes a storage position and an expanded position, when the first locking block is located at the unlocking position, the linkage can move between the storage position and the expanded position, and when the first locking block is located at the locking position, the movement of the linkage between the storage position and the expanded position is blocked.

3. A child stroller frame structure as claimed in claim 2, characterized in that: It also includes a first return spring, which is located between the first locking block and the base, one end of the first return spring is in contact with the base, and the other end of the first return spring is in contact with the first locking block, and the first return spring pushes the first locking block to move from the unlocking position toward the locking position.

4. A child stroller frame structure as claimed in claim 3, characterized in that: The first locking block is provided with an unlocking inclined surface. When the linkage member moves from the storage position toward the deployment position, it passes through the unlocking inclined surface and pushes the first locking block to move from the locking position toward the unlocking position through the unlocking inclined surface.

5. A child stroller frame structure as claimed in claim 3, characterized in that: It also includes a first unlocking block, which is movably connected to the base, and the first locking block is provided with a linkage inclined surface. The first unlocking block is provided with a driving inclined surface, and the driving inclined surface is in contact with the linkage inclined surface. When the first unlocking block moves toward the direction close to the first locking block, the driving inclined surface drives the linkage inclined surface to move, and the linkage inclined surface pushes the first locking block to move from the locking position to the unlocking position.

6. A child stroller frame structure as claimed in claim 5, characterized in that: The first rotating seat is connected to the base, the first rotating seat is rotatably connected to the fixed seat, the first rotating seat is provided with a first trigger surface, the trigger block can move along the radial direction of the fixed seat, the trigger block is provided with a second trigger surface and a trigger column, the trigger column is in contact with the first unlocking block, and when the first rotating seat rotates in one direction relative to the fixed seat, the second trigger surface is driven to contact the first trigger surface, and the trigger block is pushed close to the fixed seat through the first trigger surface, thereby pushing the first unlocking block to move in a direction close to the first locking block.

7. A child stroller frame structure as claimed in claim 6, characterized in that: It also includes a second rotating seat, which is located between the fixed seat and the first rotating seat, the second rotating seat is rotatably connected to the fixed seat, the first rotating seat is rotatably connected to the second rotating seat, the second rotating seat is provided with a locking groove, the fixed seat is provided with an unlocking groove, the trigger block can move between the locking groove and the unlocking groove, the width of the trigger block is greater than the depth of the locking groove, the width of the trigger block is not greater than the depth of the unlocking groove, when the trigger block contacts the bottom of the locking groove, the second rotating seat is restricted from rotating, and when the trigger block contacts the bottom of the unlocking groove, the second rotating seat can rotate.

8. A child stroller frame structure as claimed in claim 7, characterized in that: It includes a second return spring, which is located between the fixed seat and the trigger block, one end of the second return spring contacts the bottom of the unlocking groove, and the other end of the second return spring contacts the trigger block, and the second return spring pushes the trigger block close to the second rotating seat.

9. A baby stroller, characterized in that: It comprises a child stroller frame structure as described in any one of claims 1 to 8.

10. A baby stroller according to claim 9, characterized in that: It also includes a rear frame, a front frame and an armrest frame. The base is connected to the rear frame, the first arm body is connected to the front frame, and the second arm body is connected to the armrest frame.

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