Baby stroller frame body structure and baby stroller

Abstract

The utility model provides a stroller frame body structure and a stroller, and belongs to the technical field of strollers, the stroller frame body structure comprises: a first rod body, which is provided with a first rotating part, a second rotating part and a first linkage part; the second rod body is provided with a third rotating part and a second linkage part, and the third rotating part is rotatably connected with the first rotating part; the third rod body is provided with a fourth rotating part and a fifth rotating part, and the fourth rotating part is rotatably connected with the second rotating part; the fourth rod body is provided with a sixth rotating part and a third linkage part, and the sixth rotating part is rotatably connected with the fifth rotating part; and the linkage assembly is connected with the first linkage part, the second linkage part and the third linkage part. The folding rod has the advantages that when the fourth rod body is folded relative to the third rod body, the second rod body and the third rod body are folded relative to the first rod body at the same time.

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] In the prior art, baby strollers are often foldable for easy carrying and storage. There are many types of existing baby strollers, with different numbers of stroller frame rods and different connection positions between the rods, so that the folding principles and folding methods are different, and the effects after folding are also different.

[0003] For example, an invention patent with application number CN202311866864.7 provides a child stroller, including a frame with an unfolded position and a folded position, a locking mechanism, and a plurality of wheel assemblies. The frame includes a rear wheel bracket, a front wheel bracket, a push rod bracket, a rear support bracket, and a lower connecting rod. A first connecting rod mechanism is formed between the rear support bracket, the push rod bracket, and the rear wheel bracket, and a second connecting rod mechanism is formed between the rear support bracket, the rear wheel bracket, the front wheel bracket, and the lower connecting rod.

[0004] To sum up, although some existing technical solutions can control the two connecting rod mechanisms to operate synchronously when the rear support frame rotates around three axes relative to the rear wheel support, that is, the push rod frame and the front wheel support synchronously move away from the rear wheel support or synchronously move towards the rear wheel support to achieve the unfolding or folding of the frame, there is no corresponding linkage effect with the armrests. In other words, the folding of the frame cannot be achieved directly through the armrests, and there is a large room for improvement. Summary of the invention

[0005] 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.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a child stroller frame structure, comprising:

[0007] A first rod body, which is provided with a first rotating part, a second rotating part and a first linkage part;

[0008] A second rod body, which is provided with a third rotating part and a second linkage part, wherein the third rotating part is rotatably connected to the first rotating part;

[0009] A third rod body, which is provided with a fourth rotating part and a fifth rotating part, wherein the fourth rotating part is rotatably connected to the second rotating part;

[0010] a fourth rod body, which is provided with a sixth rotating part and a third linkage part, wherein the sixth rotating part is rotatably connected to the fifth rotating part;

[0011] A linkage component is connected to the first linkage part, the second linkage part and the third linkage part. When the sixth rotating part rotates relative to the fifth rotating part, the third linkage part drives the first linkage part and the second linkage part to move through the linkage component, so that the third rotating part rotates relative to the first rotating part, and the fourth rotating part rotates relative to the second rotating part.

[0012] In the above-mentioned child stroller frame structure, the linkage assembly includes a first link and a second link, the first link is provided with a fourth linkage part, a fifth linkage part and a sixth linkage part, the fourth linkage part is located between the fifth linkage part and the sixth linkage part, the fourth linkage part is rotatably connected to the first linkage part, the sixth linkage part is rotatably connected to the third linkage part, the second link is provided with a seventh linkage part and an eighth linkage part, the seventh linkage part is rotatably connected to the fifth linkage part, and the eighth linkage part is rotatably connected to the second linkage part.

[0013] In the above-mentioned child stroller frame structure, the linkage assembly also includes a third link and a fourth link, the first link is also provided with a ninth linkage part, the ninth linkage part is located between the first linkage part and the third linkage part, the third rod body is also provided with a tenth linkage part, the tenth linkage part is located between the fourth rotating part and the fifth rotating part, the third link is provided with an eleventh linkage part and a twelfth linkage part, the eleventh linkage part is rotatably connected to the ninth linkage part, the fourth link is provided with a thirteenth linkage part and a fourteenth linkage part, the thirteenth linkage part is rotatably connected to the twelfth linkage part, and the fourteenth linkage part is rotatably connected to the tenth linkage part.

[0014] In the above-mentioned child stroller frame structure, the linkage assembly also includes a fifth link and a sixth link, the fourth link is also provided with a fifteenth linkage part, the third rod body is also provided with a sixteenth linkage part, the fifth link is provided with a seventeenth linkage part and an eighteenth linkage part, the seventeenth linkage part is rotatably connected to the fifteenth linkage part, the sixth link is provided with a nineteenth linkage part and a twentieth linkage part, the nineteenth linkage part is rotatably connected to the eighteenth linkage part, and the twentieth linkage part is rotatably connected to the sixteenth linkage part.

[0015] In the above-mentioned child stroller frame structure, the linkage assembly includes a seventh link, an eighth link, a ninth link, a tenth link, an eleventh link and a twelfth link, the third rod body is further provided with a twenty-first linkage part, the twenty-first linkage part is located between the fourth rotating part and the fifth rotating part, the seventh link is provided with a twenty-second linkage part, a twenty-third linkage part and a twenty-fourth linkage part, the twenty-second linkage part is rotatably connected to the first linkage part, the twenty-third linkage part is rotatably connected to the third linkage part, the twenty-fourth linkage part is located between the twenty-second linkage part and the twenty-third linkage part, the eighth link is provided with a twenty-fifth linkage part and a twenty-sixth linkage part, the twenty-fifth linkage part is rotatably connected to the first linkage part, the ninth link is provided with a twenty-seventh linkage part and a twenty-eighth linkage part, The twenty-seventh linkage part is rotatably connected to the twenty-sixth linkage part, the twenty-eighth linkage part is rotatably connected to the second linkage part, the tenth link is provided with a twenty-ninth linkage part and a thirtieth linkage part, the twenty-ninth linkage part is rotatably connected to the twenty-sixth linkage part, the eleventh link is provided with a thirty-first linkage part and a thirty-second linkage part, the thirty-first linkage part is rotatably connected to the twenty-fourth linkage part, the twelfth link is provided with a thirty-third linkage part, a thirty-fourth linkage part and a thirty-fifth linkage part, the thirty-third linkage part is rotatably connected to the thirty-second linkage part, the thirty-fourth linkage part is rotatably connected to the twenty-first linkage part, the thirty-fifth linkage part is located between the thirty-third linkage part and the thirty-fourth linkage part, and the thirty-fifth linkage part is rotatably connected to the thirtieth linkage part.

[0016] In the above-mentioned child stroller frame structure, the linkage assembly also includes a thirteenth link and a fourteenth link, the third rod body is also provided with a thirty-sixth linkage part, the thirteenth link is provided with a thirty-seventh linkage part and a thirty-eighth linkage part, the thirty-seventh linkage part is rotatably connected to the thirtieth linkage part, the fourteenth link is provided with a thirty-ninth linkage part and a fortieth linkage part, the thirty-ninth linkage part is rotatably connected to the thirty-eighth linkage part, and the fortieth linkage part is rotatably connected to the thirty-sixth linkage part.

[0017] In the above-mentioned child stroller frame structure, it also includes a limit member, which is arranged between the thirty-sixth linkage part and the fortieth linkage part, and the fortieth linkage part is rotatably connected to the thirty-sixth linkage part through the limit member, and the limit member can rotate with the fourteenth link through the thirty-ninth linkage part relative to the thirty-eighth linkage part so as to contact the thirteenth link.

[0018] In the above-mentioned child stroller frame structure, the thirteenth connecting rod is provided with a limiting groove, and the limiting member can be rotated relative to the thirty-eighth linkage part through the thirty-ninth linkage part so as to contact the side wall of the limiting groove.

[0019] In the above-mentioned child stroller frame structure, a folding member is also included, the linkage assembly is provided with a seventh rotating part, the folding member is provided with an eighth rotating part, and the eighth rotating part is rotatably connected to the seventh rotating part.

[0020] Secondly, a baby stroller includes the baby stroller frame structure.

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

[0022] 1. When the sixth rotating part rotates relative to the fifth rotating part, the third linkage part drives the first linkage part and the second linkage part to move through the linkage assembly, the third rotating part rotates relative to the first rotating part, and the fourth rotating part rotates relative to the second rotating part, so that when the fourth rod body is retracted relative to the third rod body, the second rod body and the third rod body are retracted relative to the first rod body at the same time.

[0023] 2. When the fourth rod body rotates relative to the third rod body, the third rod body and the second rod body can be retracted relative to the first rod body simultaneously through the first connecting rod and the second connecting rod.

[0024] 3. When the fourth rod body rotates relative to the third rod body, the far end of the fourth connecting rod can be retracted inwards through the third connecting rod and the fourth connecting rod.

[0025] 4. When the fourth rod body rotates relative to the third rod body, the far end of the sixth connecting rod can be retracted inwards through the fifth connecting rod and the sixth connecting rod.

[0026] 5. When the fourth rod rotates relative to the third rod, the seventh connecting rod, the eighth connecting rod, the ninth connecting rod, the tenth connecting rod, the eleventh connecting rod and the twelfth connecting rod can simultaneously complete the retraction of the third rod and the second rod relative to the first rod, and simultaneously complete the inward retraction of the far end of the twelfth connecting rod.

[0027] 6. When the fourth rod body rotates relative to the third rod body, the far end of the fourteenth connecting rod can be retracted inwards through the thirteenth connecting rod and the fourteenth connecting rod.

[0028] 7. The limiter can rotate with the fourteenth connecting rod through the thirty-ninth connecting rod relative to the thirty-eighth connecting rod and thus contact the thirteenth connecting rod, thereby limiting the further rotation of the fourteenth connecting rod relative to the thirteenth connecting rod and also limiting the maximum rotation angle of other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a schematic structural diagram of a child stroller according to the first embodiment of the present invention.

[0030] Figure 2 The figure is a schematic structural diagram of a child stroller frame structure according to the first embodiment of the present invention.

[0031] Figure 3 The figure is an exploded view of the frame structure of the child stroller according to the first embodiment of the present invention.

[0032] Figure 4 This is a schematic structural diagram of a child stroller according to Embodiment 2 of the present utility model.

[0033] Figure 5 This is a schematic structural diagram of a child stroller frame structure according to a second embodiment of the present invention.

[0034] Figure 6 It is an exploded view of the frame structure of the child stroller according to the second embodiment of the present utility model.

[0035] In the figure, 100, the first rod; 110, the first rotating part; 120, the second rotating part; 130, the first linkage part; 200, the second rod; 210, the third rotating part; 220, the second linkage part; 300, the third rod; 310, the fourth rotating part; 320, the fifth rotating part; 330, the tenth linkage part; 340, the sixteenth linkage part; 350, the twenty-first linkage part; 360, the thirty-sixth linkage part; 400, the fourth rod; 410, the sixth rotating part; 420, the third linkage part; 500, the first connecting rod; 510 , the fourth linkage part; 520, the fifth linkage part; 530, the sixth linkage part; 540, the ninth linkage part; 600, the second link; 610, the seventh linkage part; 620, the eighth linkage part; 700, the third link; 710, the eleventh linkage part; 720, the twelfth linkage part; 800, the fourth link; 810, the thirteenth linkage part; 820, the fourteenth linkage part; 830, the fifteenth linkage part; 900, the fifth link; 910, the seventeenth linkage part; 920, the eighteenth linkage part; 1000, the sixth link; 1010, the tenth 9th linkage part; 1020, 20th linkage part; 1100, 7th linkage part; 1110, 22nd linkage part; 1120, 23rd linkage part; 1130, 24th linkage part; 1200, 8th linkage part; 1210, 25th linkage part; 1220, 26th linkage part; 1300, 9th linkage part; 1310, 27th linkage part; 1320, 28th linkage part; 1400, 10th linkage part; 1410, 29th linkage part; 1420, 30th linkage part; 1500, 11th linkage part; 15 10. the thirty-first linkage part; 1520. the thirty-second linkage part; 1600. the twelfth connecting rod; 1610. the thirty-third linkage part; 1620. the thirty-fourth linkage part; 1630. the thirty-fifth linkage part; 1700. the thirteenth connecting rod; 1710. the thirty-seventh linkage part; 1720. the thirty-eighth linkage part; 1730. the limiting groove; 1800. the fourteenth connecting rod; 1810. the thirty-ninth linkage part; 1820. the fortieth linkage part; 1900. the seventh rotating part; 2000. the folding member; 2010. the eighth rotating part. DETAILED DESCRIPTION

[0036] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, in the present invention, the descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0042] Embodiment 1

[0043] like Figure 1 , Figure 2 As shown, a child stroller frame structure includes: a first rod 100, a second rod 200, a third rod 300, a fourth rod 400 and a linkage assembly.

[0044] The first rod body 100 is provided with a first rotating portion 110 , a second rotating portion 120 and a first linkage portion 130 .

[0045] The second rod body 200 is provided with a third rotating portion 210 and a second linkage portion 220 , and the third rotating portion 210 is rotatably connected to the first rotating portion 110 .

[0046] The third rod 300 is provided with a fourth rotating portion 310 and a fifth rotating portion 320 , and the fourth rotating portion 310 is rotatably connected to the second rotating portion 120 .

[0047] The fourth rod body 400 is provided with a sixth rotating portion 410 and a third linkage portion 420 , and the sixth rotating portion 410 is rotatably connected to the fifth rotating portion 320 .

[0048] Among them, the linkage component is connected to the first linkage part 130, the second linkage part 220 and the third linkage part 420. When the sixth rotating part 410 rotates relative to the fifth rotating part 320, the third linkage part 420 drives the first linkage part 130 and the second linkage part 220 to move through the linkage component, so that the third rotating part 210 rotates relative to the first rotating part 110, and the fourth rotating part 310 rotates relative to the second rotating part 120.

[0049] In this embodiment, when the sixth rotating portion 410 rotates relative to the fifth rotating portion 320, the third linkage portion 420 drives the first linkage portion 130 and the second linkage portion 220 to move through the linkage assembly, the third rotating portion 210 rotates relative to the first rotating portion 110, and the fourth rotating portion 310 rotates relative to the second rotating portion 120, thereby achieving that when the fourth rod 400 is retracted relative to the third rod 300, the second rod 200 and the third rod 300 are simultaneously retracted relative to the first rod 100.

[0050] like Figure 1 , Figure 2 As shown, on the basis of the above embodiment, the linkage assembly includes a first link 500 and a second link 600, the first link 500 is provided with a fourth linkage part 510, a fifth linkage part 520 and a sixth linkage part 530, the fourth linkage part 510 is located between the fifth linkage part 520 and the sixth linkage part 530, the fourth linkage part 510 is rotatably connected to the first linkage part 130, the sixth linkage part 530 is rotatably connected to the third linkage part 420, the second link 600 is provided with a seventh linkage part 610 and an eighth linkage part 620, the seventh linkage part 610 is rotatably connected to the fifth linkage part 520, and the eighth linkage part 620 is rotatably connected to the second linkage part 220.

[0051] Specifically, Figure 2For example, when the fourth rod 400 rotates clockwise relative to the third rod 300, the first connecting rod 500 rotates counterclockwise relative to the first rod 100 and drives the third rod 300 to rotate counterclockwise relative to the first rod 100. At the same time, the first connecting rod 500 drives the second connecting rod 600 to rotate clockwise and drives the second rod 200 to rotate clockwise.

[0052] In this embodiment, when the fourth rod 400 rotates relative to the third rod 300 , the third rod 300 and the second rod 200 can be retracted relative to the first rod 100 simultaneously through the first connecting rod 500 and the second connecting rod 600 .

[0053] like Figure 1 , Figure 2 As shown, on the basis of the above embodiment, the linkage assembly also includes a third link 700 and a fourth link 800, the first link 500 is also provided with a ninth linkage part 540, the ninth linkage part 540 is located between the first linkage part 130 and the third linkage part 420, the third rod body 300 is also provided with a tenth linkage part 330, the tenth linkage part 330 is located between the fourth rotating part 310 and the fifth rotating part 320, the third link 700 is provided with an eleventh linkage part 710 and a twelfth linkage part 720, the eleventh linkage part 710 is rotatably connected to the ninth linkage part 540, the fourth link 800 is provided with a thirteenth linkage part 810 and a fourteenth linkage part 820, the thirteenth linkage part 810 is rotatably connected to the twelfth linkage part 720, and the fourteenth linkage part 820 is rotatably connected to the tenth linkage part 330.

[0054] Specifically, Figure 2 For example, when the fourth rod 400 rotates clockwise relative to the third rod 300, the first connecting rod 500 rotates counterclockwise relative to the first rod 100 and drives the third rod 300 to rotate counterclockwise relative to the first rod 100, the third connecting rod 700 rotates counterclockwise relative to the first connecting rod 500, and the fourth connecting rod 800 rotates clockwise relative to the third rod 300.

[0055] In this embodiment, when the fourth rod body 400 rotates relative to the third rod body 300 , the far end of the fourth rod 800 can be retracted inwards through the third connecting rod 700 and the fourth connecting rod 800 .

[0056] like Figure 4 , Figure 5As shown, on the basis of the above embodiment, the linkage assembly also includes a fifth link 900 and a sixth link 1000, the fourth link 800 is further provided with a fifteenth linkage part 830, the third rod body 300 is further provided with a sixteenth linkage part 340, the fifth link 900 is provided with a seventeenth linkage part 910 and an eighteenth linkage part 920, the seventeenth linkage part 910 is rotatably connected to the fifteenth linkage part 830, the sixth link 1000 is provided with a nineteenth linkage part 1010 and a twentieth linkage part 1020, the nineteenth linkage part 1010 is rotatably connected to the eighteenth linkage part 920, and the twentieth linkage part 1020 is rotatably connected to the sixteenth linkage part 340.

[0057] Specifically, Figure 2 For example, when the fourth rod 400 rotates clockwise relative to the third rod 300, the first connecting rod 500 rotates counterclockwise relative to the first rod 100 and drives the third rod 300 to rotate counterclockwise relative to the first rod 100, the third connecting rod 700 rotates counterclockwise relative to the first connecting rod 500, the fourth connecting rod 800 rotates clockwise relative to the third rod 300, the fifth connecting rod 900 rotates counterclockwise relative to the fourth connecting rod 800, and the sixth connecting rod 1000 rotates clockwise relative to the third rod 300.

[0058] In this embodiment, when the fourth rod 400 rotates relative to the third rod 300 , the far end of the sixth link 1000 can be retracted inwards through the fifth link 900 and the sixth link 1000 .

[0059] like Figure 1 , Figure 2 As shown, based on the above embodiment, a folding member 2000 is further included, the fourth connecting rod 800 is provided with a seventh rotating part 1900, and the folding member 2000 is provided with an eighth rotating part 2010, and the eighth rotating part 2010 is rotatably connected to the seventh rotating part 1900.

[0060] In this embodiment, the folding member 2000 can be rotated relative to the fourth connecting rod 800 by the eighth rotating portion 2010 rotating relative to the seventh rotating portion 1900, thereby achieving further folding.

[0061] like Figure 1 , Figure 2 , Figure 3 As shown, a child stroller includes the child stroller frame structure described above.

[0062] In this embodiment, the first rod body 100 can be a rear wheel bracket, the second rod body 200 can be a front wheel bracket, the third rod body 300 can be a lower half of the push rod bracket, the fourth rod body 400 can be an upper half of the push rod bracket, the fourth connecting rod 800 can be a seat rod, and the sixth connecting rod 1000 can be a handrail rod.

[0063] Embodiment 2

[0064] like Figure 4 , Figure 5 As shown, a child stroller frame structure includes: a first rod 100, a second rod 200, a third rod 300, a fourth rod 400 and a linkage assembly.

[0065] The first rod body 100 is provided with a first rotating portion 110 , a second rotating portion 120 and a first linkage portion 130 .

[0066] The second rod body 200 is provided with a third rotating portion 210 and a second linkage portion 220 , and the third rotating portion 210 is rotatably connected to the first rotating portion 110 .

[0067] The third rod 300 is provided with a fourth rotating portion 310 and a fifth rotating portion 320 , and the fourth rotating portion 310 is rotatably connected to the second rotating portion 120 .

[0068] The fourth rod body 400 is provided with a sixth rotating portion 410 and a third linkage portion 420 , and the sixth rotating portion 410 is rotatably connected to the fifth rotating portion 320 .

[0069] Among them, the linkage component is connected to the first linkage part 130, the second linkage part 220 and the third linkage part 420. When the sixth rotating part 410 rotates relative to the fifth rotating part 320, the third linkage part 420 drives the first linkage part 130 and the second linkage part 220 to move through the linkage component, so that the third rotating part 210 rotates relative to the first rotating part 110, and the fourth rotating part 310 rotates relative to the second rotating part 120.

[0070] In this embodiment, when the sixth rotating portion 410 rotates relative to the fifth rotating portion 320, the third linkage portion 420 drives the first linkage portion 130 and the second linkage portion 220 to move through the linkage assembly, the third rotating portion 210 rotates relative to the first rotating portion 110, and the fourth rotating portion 310 rotates relative to the second rotating portion 120, thereby achieving that when the fourth rod 400 is retracted relative to the third rod 300, the second rod 200 and the third rod 300 are simultaneously retracted relative to the first rod 100.

[0071] like Figure 4 , Figure 5 As shown, on the basis of the above embodiment, the linkage assembly includes a seventh link 1100, an eighth link 1200, a ninth link 1300, a tenth link 1400, an eleventh link 1500 and a twelfth link 1600, the third rod body 300 is further provided with a twenty-first linkage portion 350, the twenty-first linkage portion 350 is located between the fourth rotating portion 310 and the fifth rotating portion 320, the seventh link 1100 is provided with a twenty-second linkage portion 1110, a twenty-third linkage portion 1120810 and a twenty-fourth linkage portion 1130, the twenty-second linkage portion 11 The eighth connecting rod 1200 is provided with a twenty-fifth connecting rod 1210 and a twenty-sixth connecting rod 1220, and the twenty-fifth connecting rod 1210 is rotatably connected to the first connecting rod 130, the twenty-third connecting rod 1120810 is rotatably connected to the third connecting rod 420, the twenty-fourth connecting rod 1130 is located between the twenty-second connecting rod 1110 and the twenty-third connecting rod 1120810, the eighth connecting rod 1200 is provided with a twenty-fifth connecting rod 1210 and a twenty-sixth connecting rod 1220, the twenty-fifth connecting rod 1210 is rotatably connected to the first connecting rod 130, the ninth connecting rod 1300 is provided with a twenty-seventh connecting rod 1310 and a twenty-eighth connecting rod 13 20, the twenty-seventh linkage part 1310 is rotatably connected to the twenty-sixth linkage part 1220, the twenty-eighth linkage part 1320 is rotatably connected to the second linkage part 220, the tenth connecting rod 1400 is provided with a twenty-ninth linkage part 1410 and a thirtieth linkage part 1420, the twenty-ninth linkage part 1410 is rotatably connected to the twenty-sixth linkage part 1220, the eleventh connecting rod 1500 is provided with a thirty-first linkage part 1510 and a thirty-second linkage part 1520, the thirty-first linkage part 1510 is rotatably connected to the twenty-fourth linkage part 113 0 connection, the twelfth link 1600 is provided with a thirty-third linkage part 1610810, a thirty-fourth linkage part 1620 and a thirty-fifth linkage part 1630, the thirty-third linkage part 1610810 is rotatably connected to the thirty-second linkage part 1520, the thirty-fourth linkage part 1620 is rotatably connected to the twenty-first linkage part 350, the thirty-fifth linkage part 1630 is located between the thirty-third linkage part 1610810 and the thirty-fourth linkage part 1620, and the thirty-fifth linkage part 1630 is rotatably connected to the thirtieth linkage part 1420.

[0072] Specifically, Figure 5For example, when the fourth rod 400 rotates clockwise relative to the third rod 300, the seventh connecting rod 1100 rotates counterclockwise relative to the first rod 100 and drives the third rod 300 to rotate counterclockwise relative to the first rod 100, the eleventh connecting rod 1500 rotates counterclockwise relative to the tenth connecting rod 1400, the twelfth connecting rod 1600 rotates clockwise relative to the third rod 300, and pulls the eighth connecting rod 1200 to rotate counterclockwise relative to the tenth connecting rod 1400 through the tenth connecting rod 1400, and the ninth connecting rod 1300 rotates clockwise relative to the tenth connecting rod 1400, thereby causing the second rod 200 to rotate clockwise relative to the first rod 100.

[0073] In this embodiment, when the fourth rod 400 rotates relative to the third rod 300, the seventh connecting rod 1100, the eighth connecting rod 1200, the ninth connecting rod 1300, the tenth connecting rod 1400, the eleventh connecting rod 1500 and the twelfth connecting rod 1600 can simultaneously complete the retraction of the third rod 300 and the second rod 200 relative to the first rod 100, and simultaneously complete the inward retraction of the far end of the twelfth connecting rod 1600.

[0074] like Figure 4 , Figure 5 As shown, on the basis of the above embodiment, the linkage assembly also includes a thirteenth link 1700 and a fourteenth link 1800, the third rod body 300 is also provided with a thirty-sixth linkage part 360, the thirteenth link 1700 is provided with a thirty-seventh linkage part 1710 and a thirty-eighth linkage part 1720, the thirty-seventh linkage part 1710 is rotatably connected to the thirtieth linkage part 1420, the fourteenth link 1800 is provided with a thirty-ninth linkage part 1810 and a fortieth linkage part 1820, the thirty-ninth linkage part 1810 is rotatably connected to the thirty-eighth linkage part 1720, and the fortieth linkage part 1820 is rotatably connected to the thirty-sixth linkage part 360.

[0075] Specifically, Figure 5 For example, when the fourth rod 400 rotates clockwise relative to the third rod 300, the seventh connecting rod 1100 rotates counterclockwise relative to the first rod 100 and drives the third rod 300 to rotate counterclockwise relative to the first rod 100, the eleventh connecting rod 1500 rotates counterclockwise relative to the tenth connecting rod 1400, the twelfth connecting rod 1600 rotates clockwise relative to the third rod 300, the thirteenth connecting rod 1700 rotates counterclockwise relative to the tenth connecting rod 1400, and the fourteenth connecting rod 1800 rotates clockwise relative to the thirteenth connecting rod 1700.

[0076] In this embodiment, when the fourth rod body 400 rotates relative to the third rod body 300 , the far end of the fourteenth connecting rod 1800 can be retracted inwards through the thirteenth connecting rod 1700 and the fourteenth connecting rod 1800 .

[0077] like Figure 4 , Figure 5 As shown, on the basis of the above-mentioned embodiment, it also includes a limit member (not drawn in the figure), and the limit member is arranged between the thirty-sixth linkage part 360 and the fortieth linkage part 1820, and the fortieth linkage part 1820 is rotatably connected to the thirty-sixth linkage part 360 through the limit member, and the limit member can rotate with the fourteenth connecting rod 1800 through the thirty-ninth linkage part 1810 relative to the thirty-eighth linkage part 1720, thereby contacting the thirteenth connecting rod 1700.

[0078] In this embodiment, the limit member can rotate with the fourteenth connecting rod 1800 relative to the thirty-eighth connecting rod 1720 through the thirty-ninth connecting rod 1810 and thus contact the thirteenth connecting rod 1700, thereby limiting the further rotation of the fourteenth connecting rod 1800 relative to the thirteenth connecting rod 1700, and also limiting the maximum rotation angle of other components.

[0079] like Figure 4 , Figure 5 As shown, on the basis of the above embodiment, the thirteenth connecting rod 1700 is provided with a limiting groove 1730, and the limiting member can be rotated relative to the thirty-eighth linkage part 1720 through the thirty-ninth linkage part 1810 so as to contact the side wall of the limiting groove 1730.

[0080] In this embodiment, the limiting member can rotate relative to the thirty-eighth linkage part 1720 through the thirty-ninth linkage part 1810 so as to contact the side wall of the limiting groove 1730 and further be embedded in the thirteenth connecting rod 1700 to achieve limiting.

[0081] like Figure 4 , Figure 5 As shown, based on the above embodiment, a folding member 2000 is further included, the eleventh connecting rod 1500 is provided with a seventh rotating part 1900, and the folding member 2000 is provided with an eighth rotating part 2010, and the eighth rotating part 2010 is rotatably connected to the seventh rotating part 1900.

[0082] In this embodiment, the folding member 2000 can be rotated relative to the fourth connecting rod 800 by the eighth rotating portion 2010 rotating relative to the seventh rotating portion 1900, thereby achieving further folding.

[0083] like Figure 4 , Figure 5 , Figure 6 As shown, a child stroller includes the child stroller frame structure described above.

[0084] In this embodiment, the first rod body 100 can be a rear wheel bracket, the second rod body 200 can be a front wheel bracket, the third rod body 300 can be a lower half of the push rod bracket, the fourth rod body 400 can be an upper half of the push rod bracket, the twelfth connecting rod 1600 can be a seat rod, and the fourteenth connecting rod 1800 can be a handrail rod.

Claims

1. A child stroller frame structure, characterized in that: include: A first rod body, which is provided with a first rotating part, a second rotating part and a first linkage part; A second rod body, which is provided with a third rotating part and a second linkage part, wherein the third rotating part is rotatably connected to the first rotating part; A third rod body, which is provided with a fourth rotating part and a fifth rotating part, wherein the fourth rotating part is rotatably connected to the second rotating part; a fourth rod body, which is provided with a sixth rotating part and a third linkage part, wherein the sixth rotating part is rotatably connected to the fifth rotating part; A linkage component is connected to the first linkage part, the second linkage part and the third linkage part. When the sixth rotating part rotates relative to the fifth rotating part, the third linkage part drives the first linkage part and the second linkage part to move through the linkage component, so that the third rotating part rotates relative to the first rotating part, and the fourth rotating part rotates relative to the second rotating part.

2. A child stroller frame structure as claimed in claim 1, characterized in that: The linkage assembly includes a first link and a second link, the first link is provided with a fourth linkage part, a fifth linkage part and a sixth linkage part, the fourth linkage part is located between the fifth linkage part and the sixth linkage part, the fourth linkage part is rotatably connected to the first linkage part, the sixth linkage part is rotatably connected to the third linkage part, the second link is provided with a seventh linkage part and an eighth linkage part, the seventh linkage part is rotatably connected to the fifth linkage part, and the eighth linkage part is rotatably connected to the second linkage part.

3. A child stroller frame structure as claimed in claim 2, characterized in that: The linkage assembly also includes a third link and a fourth link. The first link is further provided with a ninth linkage portion, which is located between the first linkage portion and the third linkage portion. The third rod body is further provided with a tenth linkage portion, which is located between the fourth rotating portion and the fifth rotating portion. The third link is provided with an eleventh linkage portion and a twelfth linkage portion, which are rotatably connected to the ninth linkage portion. The fourth link is provided with a thirteenth linkage portion and a fourteenth linkage portion, which are rotatably connected to the twelfth linkage portion, and the fourteenth linkage portion is rotatably connected to the tenth linkage portion.

4. A child stroller frame structure as claimed in claim 3, characterized in that: The linkage assembly also includes a fifth link and a sixth link, the fourth link is further provided with a fifteenth linkage part, the third rod body is further provided with a sixteenth linkage part, the fifth link is provided with a seventeenth linkage part and an eighteenth linkage part, the seventeenth linkage part is rotatably connected to the fifteenth linkage part, the sixth link is provided with a nineteenth linkage part and a twentieth linkage part, the nineteenth linkage part is rotatably connected to the eighteenth linkage part, and the twentieth linkage part is rotatably connected to the sixteenth linkage part.

5. A child stroller frame structure as claimed in claim 1, characterized in that: The linkage assembly includes a seventh link, an eighth link, a ninth link, a tenth link, an eleventh link and a twelfth link, the third rod body is further provided with a twenty-first linkage part, the twenty-first linkage part is located between the fourth rotating part and the fifth rotating part, the seventh link is provided with a twenty-second linkage part, a twenty-third linkage part and a twenty-fourth linkage part, the twenty-second linkage part is rotatably connected to the first linkage part, the twenty-third linkage part is rotatably connected to the third linkage part, the twenty-fourth linkage part is located between the twenty-second linkage part and the twenty-third linkage part, the eighth link is provided with a twenty-fifth linkage part and a twenty-sixth linkage part, the twenty-fifth linkage part is rotatably connected to the first linkage part, the ninth link is provided with a twenty-seventh linkage part and a twenty-eighth linkage part, the twenty-seventh linkage part The twenty-sixth linkage part is rotatably connected to the twenty-sixth linkage part, the twenty-eighth linkage part is rotatably connected to the second linkage part, the tenth linkage rod is provided with a twenty-ninth linkage part and a thirtieth linkage part, the twenty-ninth linkage part is rotatably connected to the twenty-sixth linkage part, the eleventh linkage rod is provided with a thirty-first linkage part and a thirty-second linkage part, the thirty-first linkage part is rotatably connected to the twenty-fourth linkage part, the twelfth linkage rod is provided with a thirty-third linkage part, a thirty-fourth linkage part and a thirty-fifth linkage part, the thirty-third linkage part is rotatably connected to the thirty-second linkage part, the thirty-fourth linkage part is rotatably connected to the twenty-first linkage part, the thirty-fifth linkage part is located between the thirty-third linkage part and the thirty-fourth linkage part, and the thirty-fifth linkage part is rotatably connected to the thirtieth linkage part.

6. A child stroller frame structure as claimed in claim 5, characterized in that: The linkage assembly also includes a thirteenth link and a fourteenth link, the third rod body is further provided with a thirty-sixth linkage part, the thirteenth link is provided with a thirty-seventh linkage part and a thirty-eighth linkage part, the thirty-seventh linkage part is rotatably connected to the thirtieth linkage part, the fourteenth link is provided with a thirty-ninth linkage part and a fortieth linkage part, the thirty-ninth linkage part is rotatably connected to the thirty-eighth linkage part, and the fortieth linkage part is rotatably connected to the thirty-sixth linkage part.

7. A child stroller frame structure as claimed in claim 6, characterized in that: It also includes a limit member, which is arranged between the thirty-sixth linkage part and the fortieth linkage part. The fortieth linkage part is rotatably connected to the thirty-sixth linkage part through the limit member, and the limit member can rotate with the fourteenth connecting rod through the thirty-ninth linkage part relative to the thirty-eighth linkage part to contact the thirteenth connecting rod.

8. A child stroller frame structure as claimed in claim 7, characterized in that: The thirteenth connecting rod is provided with a limiting groove, and the limiting member can be rotated relative to the thirty-eighth linkage part through the thirty-ninth linkage part so as to contact the side wall of the limiting groove.

9. The child stroller frame structure according to claim 1, characterized in that: It also includes a folding member, the linkage assembly is provided with a seventh rotating part, the folding member is provided with an eighth rotating part, and the eighth rotating part is rotatably connected to the seventh rotating part.

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

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