The shock absorption device, seat and stroller of the child.

Abstract

This disclosure provides a shock-absorbing device, seat, and stroller for a child stroller. The shock-absorbing device is disposed on a first and a second tube, which are parallel to each other, and supports the seat portion of the stroller. The shock-absorbing device includes a support structure pivotally connected to the first and second tubes. The support structure is configured to elastically prevent pivoting relative to the first and second tubes by means of a shock-absorbing elastic member, thereby delaying downward movement of the seat portion. The shock-absorbing device for the stroller according to this disclosure enables the stroller to achieve better shock absorption.

Description

Technical Field

[0001] This disclosure relates to shock absorbers, seats, and strollers for children. Background Technology

[0002] Typically, strollers are used to take children outdoors. With technological advancements, the demands on strollers are also increasing. Current stroller seats generally lack shock absorption, making children uncomfortable when traversing bumpy roads, thus affecting their riding comfort. To address this, a seat with elastic wires has been proposed, providing some shock absorption; however, its shock absorption effect is not ideal, and because the seat only has a single wire, its strength is insufficient, resulting in weak load-bearing capacity.

[0003] Therefore, it is necessary to develop a shock absorption device for children's strollers that can avoid the aforementioned problems existing in the prior art. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of this disclosure is to provide a shock absorption device for a stroller that enables the stroller to achieve better shock absorption.

[0005] As embodied and summarized herein, in order to achieve these and other advantages and for the purposes of this disclosure, a shock-absorbing device for a stroller is proposed, which is disposed on a first and a second tube parallel to each other on the seat tube of the stroller and supports the seat of the stroller. The shock-absorbing device includes a support structure pivotally connected to the first and the second tubes, the support structure being configured to elastically prevent the support structure from pivoting relative to the first and the second tubes by means of a shock-absorbing elastic element, thereby delaying the downward movement of the seat.

[0006] In one embodiment, the support structure includes: a damping tube abutting against the lower surface of the seat, the fixed end of the damping tube being pivotally connected to the first tube, and the free end of the damping tube being higher than the second tube; a damping sleeve, the first end of the damping sleeve being pivotally connected to the second tube, and the second end of the damping sleeve being slidably pivotally connected to the damping tube, such that when the damping tube is subjected to downward pressure and pivots downward around the first tube, the damping sleeve is driven to pivot downward around the second tube; wherein, the damping elastic element is a separate component other than the damping tube and the damping sleeve, and when the damping tube and the damping sleeve pivot downward, the damping elastic element applies a damping force to the damping tube and / or the damping sleeve.

[0007] In one embodiment, the shock absorber tube is provided with a connecting sleeve that can slide along the shock absorber tube, and the second end of the shock absorber sleeve is pivotally connected to the connecting sleeve, so that the second end of the shock absorber sleeve is indirectly pivotally connected to the shock absorber tube.

[0008] In one embodiment, the connecting sleeve is provided with a pin through hole transverse to the shock absorber tube, the second end of the shock absorber sleeve is provided with a pin connecting hole, and the portion of the shock absorber tube surrounded by the connecting sleeve is provided with an elongated groove-shaped sliding hole, and a pin passes through the pin connecting hole, the pin through hole and the sliding hole in sequence.

[0009] In one embodiment, the connecting sleeve has a damping sleeve hole for the damping tube to slide therein, and a connecting post transverse to the damping tube is provided at the location of the pin through hole in the connecting sleeve, the pin through hole penetrating the connecting post; wherein, the first end of the damping sleeve has a second sleeve hole for the second tube to pass through, the second end of the damping sleeve has two limiting bosses, the pin through hole is formed by penetrating the two limiting bosses, a limiting groove is defined between the two limiting bosses, and the portion of the connecting sleeve with the connecting post is accommodated in the limiting groove.

[0010] In one embodiment, the damping elastic element is a torsion spring. The first end of the torsion spring is a pushing part that acts on the damping tube, and the second end is a hook that can engage in the locking hole of the damping tube sleeve. A collar made of the spring wire of the torsion spring is provided between the pushing part and the hook. The collar is placed on the connecting post of the connecting tube sleeve.

[0011] In one embodiment, the lower part of the connecting sleeve is provided with a boss, the boss is provided with a rotating hole, and the second end of the shock-absorbing sleeve is provided with a pin connection hole, and a pin passes through the pin connection hole and the rotating hole on the boss in sequence.

[0012] In one embodiment, the portion of the shock-absorbing tube that is pivotally connected to the shock-absorbing tube sleeve is provided with an elongated groove-shaped sliding hole, and the second end of the shock-absorbing tube sleeve is provided with a pin connection hole. A pin passes through the pin connection hole and the sliding hole, so that the second end of the shock-absorbing tube sleeve is directly pivotally connected to the shock-absorbing tube.

[0013] In one embodiment, the damping elastic element is a tension spring, a compression spring, a hydraulic rod, or a pneumatic rod that acts on the damping tube and / or the damping tube sleeve to generate a damping force in response to downward pivoting of the damping tube and the damping tube sleeve.

[0014] In one embodiment, the shock-absorbing device support structure includes: a shock-absorbing tube abutting against the lower surface of the seat, the fixed end of the shock-absorbing tube being pivotally connected to the first tube, and the free end of the shock-absorbing tube being higher than the second tube; a shock-absorbing sleeve, the first end of the shock-absorbing sleeve being pivotally connected to the second tube, and the second end of the shock-absorbing sleeve being pivotally connected to the shock-absorbing tube; wherein the shock-absorbing elastic element is a hydraulic rod or a pneumatic rod forming part of the shock-absorbing sleeve, when the shock-absorbing tube is subjected to downward pressure and pivots downward around the first tube, the shock-absorbing sleeve will be driven to pivot downward around the second tube and apply a damping force to the shock-absorbing tube by means of the hydraulic rod or pneumatic rod forming part of the shock-absorbing sleeve.

[0015] In another embodiment, this disclosure also proposes a stroller seat, wherein the seat includes the aforementioned shock-absorbing device.

[0016] In yet another embodiment, this disclosure also proposes a stroller, wherein the stroller includes a frame and a seat disposed on the frame, the seat including the aforementioned shock-absorbing device.

[0017] The beneficial effect of this disclosure is that the shock absorption device of the stroller according to this disclosure slows down the downward movement of the seat by preventing the pivoting of the support structure, thereby enabling the stroller to achieve a better shock absorption effect.

[0018] The foregoing and other objects, features, aspects and advantages of this disclosure will become more apparent from the following detailed description of the disclosure taken in conjunction with the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings are included herein to provide a further understanding of the present disclosure and are incorporated in and form a part of this specification. The drawings illustrate embodiments of the present disclosure and, together with the following description, serve to illustrate the ideas of the present disclosure.

[0020] In the attached diagram:

[0021] Figure 1 This is a perspective view of the frame of a stroller using an embodiment of the shock absorption device according to the present disclosure.

[0022] Figure 2 It shows Figure 1 A three-dimensional view of the stroller frame from another angle.

[0023] Figure 3 and Figure 4 This is a simplified schematic diagram of the shock absorption device according to this disclosure.

[0024] Figure 5 This is a perspective view of a shock-absorbing tube in one embodiment of the shock-absorbing device according to the present disclosure.

[0025] Figure 6 This is a perspective view of the connecting sleeve in one embodiment of the shock absorption device according to the present disclosure.

[0026] Figure 7 This is a perspective view of a shock-absorbing sleeve in one embodiment of the shock-absorbing device according to the present disclosure.

[0027] Figure 8 This is a perspective view of a shock-absorbing elastic element in one embodiment of the shock-absorbing device according to the present disclosure.

[0028] Figure 9 This is a cross-sectional schematic diagram of the connection points of various components in one embodiment of the shock absorption device according to the present disclosure.

[0029] Figure 10 and Figure 11 This is a schematic diagram of another embodiment of the shock absorption device according to the present disclosure.

[0030] List of reference numerals

[0031] 10 shock absorber tubes

[0032] 10a Fixed End

[0033] 10b free end

[0034] 11 sliding holes

[0035] 20 shock absorber sleeve

[0036] 20a First End

[0037] 20b second end

[0038] 21 Pin Connection Hole

[0039] 22 Second sleeve hole

[0040] 23 Limiting boss

[0041] 24 limit slots

[0042] 30 shock-absorbing elastic element

[0043] 31 jacking section

[0044] 40 pins, pivot points

[0045] 50 connecting pipe sleeve

[0046] 51 pin through hole

[0047] 52 shock absorber sleeve hole

[0048] 53 connecting columns

[0049] 54 bosses

[0050] 100 seat tubes

[0051] 101 First Pipe

[0052] 102 Second Pipe

[0053] 103 pipe fitting Detailed Implementation

[0054] In the following, exemplary embodiments will be described in detail with reference to the accompanying drawings. It will be understood that although terms such as "first," "second," etc., may be used herein to describe various elements, these elements are not limited by these terms. These terms are generally used only to distinguish one element from another. Furthermore, terms specifically defined in consideration of the construction and operation of the embodiments are used only to describe the embodiments and not to limit the scope of the embodiments.

[0055] Figure 1 and Figure 2 A stroller frame using an embodiment of the shock-absorbing device according to the present disclosure is shown. The stroller frame includes a seat tube 100 for the seat and a backrest tube for the backrest, the seat tube 100 being a frame structure consisting of a first tube 101, a second tube 102, and two connecting tubes connecting the two.

[0056] The shock-absorbing device according to this disclosure is disposed on the first tube 101 and the second tube 102 for supporting the seat of the stroller. In this document, the direction the stroller faces is defined as forward-facing, and the direction the stroller faces away from is defined as rear-facing. It should be understood that, although... Figure 1 and Figure 2 The diagram shows that the first tube 101 is the front tube and the second tube 102 is the rear tube. However, this disclosure is not limited thereto; the first tube 101 can be the rear tube and the second tube 102 can be the front tube. In addition, the first tube 101 and the second tube 102 can also be two side tubes connecting the front tube and the rear tube.

[0057] The shock-absorbing device includes a support structure pivotally connected to the first tube 101 and the second tube 102, and a shock-absorbing elastic element 30. The support structure is configured to elastically prevent the support structure from pivoting relative to the first tube 101 and the second tube 102 by means of the shock-absorbing elastic element 30, thereby delaying the downward movement of the seat. Since this disclosure delays the downward movement of the seat by preventing the pivoting of the support structure, it enables a smoother and more gentle shock absorption effect for the stroller compared to directly preventing the downward movement of the seat by applying resistance in the vertical direction.

[0058] The support structure includes a damping tube 10 and a damping tube sleeve 20, wherein the damping tube 10 and the damping tube sleeve 20 are connected to each other to form a support structure that can move up and down (e.g., Figure 3 and Figure 4As shown, the shock-absorbing elastic element 30 applies a damping force to the support structure in response to its downward movement. Before a child sits on the stroller seat, the shock-absorbing elastic element 30 lifts the support structure formed by the shock-absorbing tube 10 and the shock-absorbing tube sleeve 20. After the child sits on the stroller seat, the shock-absorbing tube 10, which abuts against the lower surface of the stroller seat, is pressed down and pivots downward, causing the shock-absorbing tube sleeve 20 to pivot downward as well. At this time, the shock-absorbing elastic element 30 applies a damping force to the shock-absorbing tube 10 and / or the shock-absorbing tube sleeve 20 to reduce the vibration of the stroller seat. Especially when the stroller travels over bumpy roads, the child's buttocks are bounced up and down. During the fall, the shock-absorbing elastic element 30 can effectively absorb and cushion the impact on the stroller seat, preventing the child's buttocks from experiencing too much impact and affecting riding comfort. Moreover, the seat post of the stroller using this shock-absorbing device has sufficient support strength. In addition, covering the seat with a fabric not only further increases riding comfort but also does not increase the stress on the seat fabric, thus ensuring the normal service life of the seat fabric.

[0059] The following will provide a detailed description of each component of the shock absorption device.

[0060] The damping tube 10 has a fixed end 10a and a free end 10b. The fixed end 10a is pivotally connected to the first tube 101, and the free end 10b is higher than the second tube 102, so that the plane defined by the damping tube 10 and the first tube 10 forms a certain angle with respect to the plane defined by the second tube 102 and the first tube 101. Figure 1 In the embodiment shown, the fixed end 10a is pivotally connected to the first pipe 101 via the pipe connector 103. Of course, the fixed end 10a can also be directly pivotally connected to the first pipe 101.

[0061] in addition, Figure 1 , Figure 2 and Figure 5 The shock-absorbing tube 10 shown is U-shaped, with two fixed ends 10a pivotally connected to the ends of the first tube 101 at the two ends of the opening, and the other end being a free end 10b higher than the second tube 102. The U-shaped shock-absorbing tube 10 and the first tube 101 form a roughly square shape, thus enabling the seat to bear the load evenly. Of course, the shock-absorbing tube 10 can also take other shapes, such as a V-shaped tube or a straight tube, which can achieve the same effect. When the shock-absorbing tube 10 is in the shape of a straight tube, its fixed end 10a is preferably pivotally connected to the middle of the first tube 101.

[0062] In order to maintain a certain angle between the plane defined by the damping tube 10 and the first tube 10 and the plane defined by the second tube 102 and the first tube 101, the damping device 100 also includes a damping tube sleeve 20 that forms a support structure together with the damping tube 10.

[0063] See Figure 1 The first end 20a of the damping sleeve 20 is pivotally connected to the second tube 102, and the second end 20b is slidably pivotally connected to the damping tube 10. This allows the damping sleeve 20 to also pivot downwards around the second tube 102 when the damping tube 10 is subjected to downward pressure and pivots downwards around the first tube 101. In this text, "the second end 20b of the damping sleeve 20 is slidably pivotally connected to the damping tube 10" means that the second end 20b of the damping sleeve 20 can slide along the damping tube 10, and simultaneously, the damping sleeve 20 can pivot relative to the damping tube 10 around the second end 20b.

[0064] The following is combined with Figure 3 and Figure 4 This explains why the second end 20b of the damping sleeve 20 must be slidably pivotally connected to the damping tube 10.

[0065] like Figure 3 As shown, the damping sleeve 20 is pivotally connected to the damping tube 10 via a pin 40 passing through its second end 20b, making the pin 40 a pivot point between the damping sleeve 20 and the damping tube 10. Since the distance between the first tube 101 and the second tube 102, as well as the distance between the pivot point 40 and the second tube 102 (i.e., the length of the damping sleeve 20), are fixed, if the distance between the pivot point 40 and the first tube 101 is also fixed, the triangle formed by the first tube 101, the second tube 102, and the pivot point 40 will remain unchanged. In this case, the damping tube 10 and the damping sleeve 20 will not be able to pivot, and the support structure they form will not be able to move up and down.

[0066] Therefore, the pivot point 40 needs to be able to slide relative to the damping tube 10, so that the distance between the pivot point 40 and the first tube 101 is variable. Figure 4 As shown, if the pivot point 40 can slide between the first position P1 and the second position P2, then the triangle formed by the first tube 101, the second tube 102 and the pivot point 40 is variable. In this case, the damping tube 10 and the damping tube sleeve 20 will be able to pivot, and the support structure formed by the two will be able to move up and down to play the role of damping and buffering.

[0067] In order to enable the second end 20b of the damping sleeve 20, together with the pin 40 passing through it (i.e., pivot point 40), to slide relative to the damping tube 10, this disclosure can take various implementations.

[0068] like Figure 1 As shown, the damping tube 10 is provided with a connecting sleeve 50 that can slide along the damping tube 10. The second end 20b of the damping sleeve 20 is pivotally connected to the connecting sleeve 50. In this case, the second end 20b of the damping sleeve 20 is indirectly pivotally connected to the damping tube 10 via the connecting sleeve 50.

[0069] In a first embodiment of the damping device according to the present disclosure, the connecting sleeve 50 is provided with a pin through hole 51 transverse to the damping tube 10 (see...). Figure 6 The second end 20b of the shock-absorbing sleeve 20 is provided with a pin connection hole 21 (see...). Figure 7 The portion of the shock absorber tube 10 surrounded by the connecting sleeve 50 is provided with an elongated slot-shaped sliding hole 11 (see...). Figure 5 The pin 40 passes sequentially through the pin connection hole 21 on the damping sleeve 20, the pin through hole 51 on the connecting sleeve 50, and the sliding hole 11 on the damping tube 10, thus becoming the pivot point between the damping sleeve 20 and the damping tube 10. Simultaneously, because the pin 40 can slide in the elongated sliding hole 11, the pivot point 40, i.e., the second end 20b of the damping sleeve 20, can slide relative to the damping tube 10.

[0070] Figure 6 A connecting sleeve is shown in a first embodiment of the damping device according to the present disclosure, wherein the connecting sleeve 50 has a damping sleeve hole 52 for the damping tube 10 to slide therein, and a connecting post 53 transverse to the damping tube 10 is provided at a position in the connecting sleeve 50 where a pin through hole 51 is provided, the pin through hole 51 passing through the connecting post 53, so that when the pin 40 passes through the pin through hole 51, the connecting post 53 can support the pin 40.

[0071] Figure 7 A damping sleeve 20 is shown in a first embodiment of the damping device according to the present disclosure, the damping sleeve 20 being coupled with... Figure 6 The connecting sleeve 50 shown is matched. The first end 20a of the shock-absorbing sleeve 20 has a second sleeve hole 22 through which the second tube 102 passes. The second end 20b of the shock-absorbing sleeve 20 has two limiting bosses 23, and a pin connection hole 21 is formed by passing through these two limiting bosses 23. A limiting groove 24 is defined between the two limiting bosses 23, and the portion of the connecting sleeve 50 with the connecting post 53 is accommodated in the limiting groove 24.

[0072] In this embodiment, since the pin 40 is supported by the connecting post 53 on the connecting sleeve 50 and slides in the sliding hole 11 on the shock absorber tube 10, the pin 40 is prevented from contacting and rubbing against the sliding hole 11, thus avoiding affecting its service life.

[0073] Of course, this disclosure is not limited to this. The damping device according to this disclosure can be simplified based on the first embodiment, adopting a second embodiment where the connecting sleeve 50 is not provided on the damping tube 10. In this simplified second embodiment, the portion of the damping tube 10 that pivots with the damping sleeve 20 is provided with an elongated groove-shaped sliding hole 11, and the second end 20b of the damping sleeve 20 is provided with a pin connection hole 21. The pin 40 passes sequentially through the pin connection hole 21 and the sliding hole 11, becoming the pivot point between the damping sleeve 20 and the damping tube 10. In this case, the second end 20b of the damping sleeve 20 is directly pivotally connected to the damping tube 10.

[0074] Since the pin 40 can also slide in the elongated groove-shaped sliding hole 11, the second simplified embodiment of this structure also achieves that the pivot point 40, i.e., the second end 20b of the damping sleeve 20, can slide relative to the damping tube 10. However, since the contact friction between the pin 40 and the sliding hole 11 will affect the service life, a wear-resistant coating can be applied to the sliding hole 11, or a sliding block (not shown) with a sliding groove matching the shape of the sliding hole 11 can be provided in the sliding hole 11. This sliding block is preferably made of a wear-resistant material.

[0075] Figure 10 and Figure 11 A third embodiment of the damping device according to the present disclosure is shown, wherein the damping tube 10 is not provided with a long groove-shaped sliding hole 11, but the third embodiment can still achieve that the second end 20b of the damping tube sleeve 20 is slidably pivotally connected to the damping tube 10.

[0076] Specifically, such as Figure 10 and Figure 11 As shown, the damping tube 10 is provided with a connecting sleeve 50 that can slide along the damping tube 10. The lower part of the connecting sleeve 50 is provided with a boss 54, and the boss 54 is provided with a rotating hole. The second end 20b of the damping tube sleeve 20 is provided with a pin connecting hole 21. The pin 40 passes through the pin connecting hole 21 and the rotating hole on the boss 54 in sequence, thus becoming the pivot point between the damping tube sleeve 20 and the damping tube 10. At the same time, since the connecting sleeve 50 and the boss 54 on it can slide along the damping tube 10, the pivot point 40, that is, the second end 20b of the damping tube sleeve 20, can slide relative to the damping tube 10.

[0077] Alternatively, a stop protrusion or stop (not shown) can be provided on the damping tube 10 to limit the range of sliding of the connecting sleeve 50 along the damping tube 10.

[0078] Next, the damping elastic element 30 in the damping device 100 will be described in detail.

[0079] In order to achieve the damping effect of the damping device 100, the damping elastic element 30 can apply damping force to the damping tube 10 and / or the damping tube sleeve 20 to slow down the downward movement of the support structure formed by the damping tube 10 and the damping tube sleeve 20.

[0080] In the first, second, and third embodiments of the damping device according to this disclosure, the damping elastic element 30 is a separate component other than the damping tube 10 and the damping tube sleeve 20.

[0081] For example, in a first embodiment of the damping device according to this disclosure, the damping elastic element 30 may be a torsion spring. Figure 8 As shown, the first end of the torsion spring 30 is the pushing part 31 that acts on the damping tube 10, and the second end is the hook part 32 that can engage in the locking hole 25 of the damping tube sleeve 20. Between the pushing part 31 and the hook part 32 of the torsion spring 30, there is a collar 33 made of the spring wire of the torsion spring 30 wound into an annular shape. The collar 33 can be placed on the connecting post 53 of the connecting tube sleeve 50.

[0082] The operation of the shock absorption device according to this disclosure will now be described in detail with reference to the first embodiment.

[0083] When the shock absorption device is not subjected to pressure from the seat of the stroller, such as Figure 1 As shown, the support structure formed by the damping tube 10 and the damping tube sleeve 20 is kept in a high position under the action of the torsion spring 30.

[0084] When the shock absorber is subjected to pressure from the seat of the stroller, the shock absorber tube 10 pivots downward around the first tube 101, thereby causing the shock absorber sleeve 20 to pivot downward around the second tube 102. Simultaneously, the connecting sleeve 50 slides along the shock absorber tube 10 from position P1 to position P2 (see...). Figure 4 As a result, the support structure formed by the shock absorber tube 10 and the shock absorber sleeve 20 moves to a lower position. During this process, the torsion spring 30 applies a damping force to the shock absorber tube 10 and the shock absorber sleeve 20, thereby greatly slowing down the speed and force of the support structure moving to a lower position and reducing the vibration of the stroller seat.

[0085] When the pressure on the damping device decreases or disappears, the support structure will shift from a low position back to a high position under the action of the torsion spring 30.

[0086] Figure 9 The state of the damping tube 10, damping tube sleeve 20, torsion spring 30 and connecting tube sleeve 50 assembled together in a first embodiment of the damping device according to the present disclosure is shown in detail, wherein the torsion spring 30 applies a damping force to both the damping tube 10 and the damping tube sleeve 20 at the connection.

[0087] The operation of the second embodiment of the shock absorber according to this disclosure is generally the same as that of the first embodiment, with only the specific arrangement of some components being different. For example, since the shock absorber tube 10 is not provided with a connecting sleeve 50, the torsion spring 30 can be set in other ways, as long as it can apply damping force to both the shock absorber tube 10 and the shock absorber sleeve 20 at the connection.

[0088] Furthermore, the damping elastic element 30 is not limited to a torsion spring, but can also be a tension spring, compression spring, hydraulic rod, or pneumatic rod, or other elastic body capable of generating damping force. Moreover, the damping elastic element 30 can be a single component acting only on the damping tube 10 or only on the damping tube sleeve 20, or it can be a single component or multiple components acting on both the damping tube 10 and the damping tube sleeve 20, such as... Figure 10 and Figure 11 As shown, it can generate damping force in response to the downward pivoting of the damping tube 10 and the damping tube sleeve 20.

[0089] In a fourth embodiment of the damping device according to this disclosure, the damping elastic element is not a separate component other than the damping tube 10 and the damping sleeve 20. For example, the damping elastic element is a hydraulic or pneumatic rod forming part of the damping sleeve 20. One end of the hydraulic or pneumatic rod is pivotally connected to the second tube 102, and the other end is pivotally connected to the damping tube 10. When the damping tube 10 is subjected to downward pressure and pivots downward about the first tube 101, the damping sleeve 20 will be driven to pivot downward about the second tube 102 and apply a damping force to the damping tube 10 by means of the hydraulic or pneumatic rod forming part of the damping sleeve 20. In this case, the damping sleeve 20 simultaneously functions as both a damping sleeve and a damping elastic element, thus eliminating the need for a separate damping elastic element 30. This embodiment reduces costs by reducing the number of components in the damping device.

[0090] Strollers using the shock-absorbing device according to this disclosure will achieve better shock absorption, thereby improving the comfort of children when riding in them.

[0091] Since the features of this disclosure can be embodied in various forms without departing from the nature of this disclosure, it should also be understood that the above embodiments are not limited to any of the details described above, and unless otherwise stated, should be broadly interpreted as falling within the scope defined by the appended claims. Therefore, all modifications and alterations falling within the scope and limits of the claims or equivalents thereof should be covered by the appended claims.

Claims

1. A shock-absorbing device for a stroller, disposed on a first tube and a second tube parallel to each other on the seat post of the stroller and supporting the seat of the stroller, the shock-absorbing device comprising a support structure pivotally connected to the first tube and the second tube, the support structure being configured to elastically prevent the support structure from pivoting relative to the first tube and the second tube by means of a shock-absorbing elastic member, thereby delaying the downward movement of the seat. in, The support structure includes: A shock-absorbing tube, wherein the fixed end of the shock-absorbing tube is pivotally connected to the first tube; A shock-absorbing sleeve, the first end of which is pivotally connected to the second tube, and the second end of which is slidably pivotally connected to the shock-absorbing tube. The damping elastic element is a torsion spring. The first end of the torsion spring is a pushing part that acts on the damping tube, and the second end of the torsion spring is a hook that can engage in the locking hole of the damping tube sleeve. A collar made of the spring wire of the torsion spring is provided between the pushing part and the hook. The torsion spring can apply damping force to the damping tube and the damping tube sleeve.

2. The shock absorption device as described in claim 1, wherein, The shock-absorbing tube abuts against the lower surface of the seat, and the free end of the shock-absorbing tube is higher than the second tube, so that when the shock-absorbing tube is subjected to downward pressure and pivots downward around the first tube, the shock-absorbing tube sleeve is driven to pivot downward around the second tube. When the damping tube and the damping tube sleeve pivot downwards, the damping elastic element applies a damping force to the damping tube and / or the damping tube sleeve.

3. The shock absorption device as described in claim 1, wherein, The shock absorber tube is provided with a connecting sleeve that can slide along the shock absorber tube. The second end of the shock absorber sleeve is pivotally connected to the connecting sleeve, so that the second end of the shock absorber sleeve is indirectly pivotally connected to the shock absorber tube.

4. The shock absorption device as described in claim 3, wherein, The connecting sleeve is provided with a pin through hole transverse to the shock absorber tube, and the second end of the shock absorber sleeve is provided with a pin connection hole. The part of the shock absorber tube surrounded by the connecting sleeve is provided with a long groove-shaped sliding hole, and a pin passes through the pin connection hole, the pin through hole and the sliding hole in sequence.

5. The shock absorption device as described in claim 4, in, The connecting sleeve has a damping sleeve hole for the damping tube to slide therein, and a connecting post transverse to the damping tube is provided at the position where the pin through hole is provided in the connecting sleeve, and the pin through hole passes through the connecting post. The first end of the shock-absorbing sleeve is provided with a second sleeve hole through which the second tube passes. The second end of the shock-absorbing sleeve is provided with two limiting bosses. The pin connecting hole is formed by passing through the two limiting bosses. A limiting groove is defined between the two limiting bosses. The part of the connecting sleeve with the connecting post is accommodated in the limiting groove.

6. The shock absorption device as described in claim 5, wherein, The collar is mounted on the connecting post of the connecting tube sleeve.

7. The shock absorption device as described in claim 3, wherein, The lower part of the connecting sleeve is provided with a boss, and the boss is provided with a rotating hole. The second end of the shock-absorbing sleeve is provided with a pin connection hole, and a pin passes through the pin connection hole and the rotating hole on the boss in sequence.

8. The shock absorption device as described in claim 1, wherein, The portion of the shock-absorbing tube that is pivotally connected to the shock-absorbing tube sleeve is provided with a long groove-shaped sliding hole, and the second end of the shock-absorbing tube sleeve is provided with a pin connection hole. A pin passes through the pin connection hole and the sliding hole, so that the second end of the shock-absorbing tube sleeve is directly pivotally connected to the shock-absorbing tube.

9. A child stroller seat, wherein, The seat includes a shock-absorbing device as described in any one of claims 1 to 8.

10. A children's stroller, wherein, The stroller includes a frame and a seat mounted on the frame, the seat including a shock-absorbing device as described in any one of claims 1 to 8.

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