A reset mechanism and a baby carriage

Abstract

The application relates to the field of baby carriages, and discloses a reset mechanism and a baby carriage. The reset mechanism comprises a rotating piece, a fixed seat, a rotating cover and a torsional spring. The rotating piece is fixedly connected to a push tube. The fixed seat is fixedly connected to the rotating piece. The rotating cover is rotatably connected to the fixed seat. The rotating cover is further connected with a supporting wire. The rotating cover has a containing cavity. The fixed seat is used for covering the containing cavity. The side of the fixed seat facing the rotating cover is provided with a first insertion hole. The torsional spring is arranged in the containing cavity. One end of the torsional spring is connected to the rotating cover. The end of the torsional spring away from the rotating cover is inserted into the first insertion hole and abuts against the end inner wall of the first insertion hole. According to the application, one end of the torsional spring is connected to the rotating cover, and the other end is inserted into the first insertion hole of the fixed seat and abuts against the end inner wall of the first insertion hole. Therefore, when the baby carriage is folded, the torsional spring provides an auxiliary force to reduce the external force required for folding. When the baby carriage is unfolded, the torsional spring provides a reset force to reduce the force required for unfolding, and the reset is realized quickly.

Description

Technical Field

[0001] This application relates to the field of strollers, and more particularly to a reset mechanism and a stroller. Background Technology

[0002] Strollers are a common tool for infants and toddlers' daily outings, and are usually equipped with a basket to easily carry items such as shopping bags or baby supplies. The basket is typically attached to the frame via metal support wires and a fabric cover, and must be folded up with the stroller to reduce its size. However, existing strollers require considerable force to overcome resistance when folding, and do not quickly return to their original position when unfolded. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a reset mechanism and a stroller.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: This application provides: A reset mechanism, the reset mechanism comprising: A rotating plate, which is fixedly connected to the push tube; A fixed base is fixedly connected to the rotating plate; A rotating cover is rotatably connected to the fixed base, and a support wire is also connected to the rotating cover. The rotating cover has a receiving cavity, and the fixed base is used to cover the receiving cavity. A first insertion hole is provided on the side of the fixed base facing the rotating cover. A torsion spring is disposed within the receiving cavity. One end of the torsion spring is connected to the rotating cover, and the end of the torsion spring facing away from the rotating cover is inserted into the first insertion hole and abuts against the inner wall of the end of the first insertion hole.

[0005] Furthermore, the fixing seat is an elongated arc-shaped groove.

[0006] Furthermore, the first insertion hole extends circumferentially around the axis of the fixed base, and the first insertion hole has a first end and a second end, with the end of the torsion spring opposite to the rotating cover located at the first end.

[0007] Furthermore, the torsion spring includes a spring body, one end of which is provided with a first extension portion connected to the rotating cover, and the other end of the spring body opposite to the first extension portion is provided with a second extension portion extending into the first insertion hole.

[0008] Furthermore, the rotating cover has a second insertion hole on the side facing the fixed base, and the first extension extends into the second insertion hole.

[0009] Furthermore, the fixed base has a protrusion on the side opposite to the rotating cover, and the protrusion has a slot on the side opposite to the fixed base. The rotating plate has a locking block corresponding to the slot, and the locking block extends into the slot.

[0010] Furthermore, the rotating cover includes interconnected side plates and a ring, which together form the receiving cavity. A connector is provided on the circumferential surface of the ring, which is connected to the support wire. The side plates are rotatably connected to the fixed base.

[0011] Furthermore, the rotating cover also includes an abutment post, which is disposed on the side of the side plate facing the fixed base. The side of the abutment post facing the fixed base has a second through hole that passes through it. The fixed base has a first through hole corresponding to the second through hole. A rotating shaft is disposed in the hole formed by the communication between the first through hole and the second through hole.

[0012] Furthermore, a first abutting block is provided on the inner side of the ring, and a second abutting block is provided on the side of the fixed seat facing the rotating cover shown. The second abutting block extends at least partially into the receiving cavity, and the second abutting block is located on the rotation path of the first abutting block.

[0013] This application also provides a stroller, including: Push tube; In any of the above-mentioned reset mechanisms, the rotating plate is fixedly connected to the push tube; A support wire is fixedly connected to the rotating cover, and a cloth sleeve is also connected to the support wire; The foot tube is rotatably connected to the push tube.

[0014] This application uses a torsion spring, with one end connected to the rotating cover and the other end inserted into the first socket of the fixing base and abutting against the inner wall of the end of the first socket. When the stroller is folded, the torsion spring provides an auxiliary force to reduce the external force required to fold it, and provides a restoring force to reduce the force required to unfold it, thereby achieving rapid reset. This overcomes the problem in the prior art that folding and unfolding the stroller requires a large force and cannot reset quickly.

[0015] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This paper shows a first-view exploded view of the reset mechanism of this application; Figure 2 This paper shows a schematic diagram of the resetting mechanism in its assembled state. Figure 3 This diagram shows a second-view exploded view of the reset mechanism of this application; Figure 4 This application shows a schematic diagram of the reset mechanism structure during the stroller folding process; Figure 5 This paper shows a third-view exploded view of the reset mechanism of this application; Figure 6 A schematic diagram of the rotating plate, fixed seat, rotating cover, and torsion spring structure of the stroller in the initial state of this application is shown. Figure 7 The diagram shows the rotating plate, fixing seat, rotating cover, and torsion spring structure of the stroller in the first stage of folding up the stroller according to this application. Figure 8 The diagram shows the rotating plate, fixing seat, rotating cover, and torsion spring structure of the stroller in the second stage of the stroller folding state of this application. Figure 9 The diagram shows the rotating plate, fixing seat, rotating cover, and torsion spring structure of the stroller in the third stage of the stroller folding state of this application. Figure 10 A schematic diagram of the stroller structure of this application is shown.

[0018] Explanation of key component symbols: 100-Reset mechanism; 110-Rotating plate; 111-Clocking block; 120-Fixed base; 121-First insertion hole; 1211-First end; 1212-Second end; 122-First through hole; 123-Protrusion; 1231-Clocking groove; 124-Second abutting block; 130-Rotating cover; 1301-Side plate; 1302-Ring; 1303-Connector; 1304-Abutting post; 13041-Second through hole; 131-Receiving cavity; 132-Second insertion hole; 133-First abutting block; 140-Torsion spring; 141-Spring body; 142-First extension; 143-Second extension; 200-Push tube; 300-Support wire; 310-Fabric cover; 400-Feet tube. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] This application provides a reset mechanism. The reset mechanism 100 includes a rotating plate 110, a fixed base 120, a rotating cover 130, and a torsion spring 140. Specifically, the rotating plate 110 is fixedly connected to the push tube 200, the fixed base 120 is fixedly connected to the rotating plate 110, the rotating cover 130 is rotatably connected to the fixed base 120, and a support wire 300 is also connected to the rotating cover 130. The rotating cover 130 has a receiving cavity 131, the fixed base 120 is used to cover the receiving cavity 131, the fixed base 120 has a first insertion hole 121 on the side facing the rotating cover 130, the torsion spring 140 is disposed in the receiving cavity 131, one end of the torsion spring 140 is connected to the rotating cover 130, and the end of the torsion spring 140 away from the rotating cover 130 is inserted into the first insertion hole 121 and abuts against the inner wall of the end of the first insertion hole 121.

[0025] In this embodiment, the fixed base 120 is a plate, and the plate is fixedly connected to the rotating piece 110, and the rotating cover 130 is rotatably connected to the plate.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in the initial state, under the elastic force of the torsion spring 140, the end of the torsion spring 140 is located at the right end of the first insertion hole 121 (with...). Figure 1 (As shown) and applies a clockwise force to the fixing seat 120. When the stroller needs to be folded up, the push tube 200 needs to be rotated clockwise to fold it up. For this purpose, the spring force of the torsion spring 140 will apply an additional clockwise force to the fixing seat 120, thereby reducing the external force required for folding up the stroller. It can be understood that when the push tube 200 rotates, it will also drive the rotating plate 110 and the fixing seat 120 to rotate clockwise. At the same time, it will also drive the support wire 300 connected to the rotating cover 130 to rotate clockwise until the support wire 300 abuts against the foot tube 400 and stops rotating clockwise. Next, as the push tube 200 continues to drive the rotating plate 110 and the fixing seat 120 to rotate clockwise, the end of the torsion spring 140 gradually moves from the right end of the first insertion hole 121 to the left end of the first insertion hole 121 (towards...). Figure 1 As shown), in this position, the torsion spring 140 is in a relaxed state, that is, the torsion spring 140 is not subjected to external resistance. As the rotating plate 110 and the fixed seat 120 continue to rotate, the end of the torsion spring 140 will abut against the left end of the first insertion hole 121. Similarly, the left end of the first insertion hole 121 will give the torsion spring 140 an external force, thereby causing the torsion spring 140 to twist until the push tube 200 rotates to the folding position.

[0027] Similarly, when the stroller needs to be changed from a folded state to an unfolded state, initially, the torsion spring 140 provides a spring force to the left end of the fixed base 120. Under the action of the spring force, the fixed base 120 will be rotated counterclockwise, thus reducing the counterclockwise unfolding rotational force on the push tube 200. As the push tube 200 gradually rotates counterclockwise, the end of the torsion spring 140 is located at the right end of the first insertion hole 121. At this time, the torsion spring 140 is not subjected to external force. As the push tube 200 continues to rotate counterclockwise, the right end of the first insertion hole 121 will abut against the torsion spring 140, thus providing the torsion spring 140 with a counterclockwise rotational force. Under the action of the spring force, the force will be transmitted to the rotating cover 130, causing the support wire 300 to also rotate counterclockwise, thereby achieving the reset.

[0028] Understandably, by extending the torsion spring 140 into the end of the first socket 121, the end of the torsion spring 140 switches between the left and right ends of the first socket 121 during the stroller's folding and unfolding process, thereby reducing the resistance when folding the stroller and the force required when unfolding it, thus greatly improving the user experience.

[0029] In some embodiments, the fixing base 120 is an elongated arc-shaped groove. A first insertion hole 121 extends circumferentially around the axis of the fixing base 120. The first insertion hole 121 has a first end 1211 and a second end 1212. The end of the torsion spring 140 facing away from the rotating cover 130 is located at the first end 1211. The torsion spring 140 includes a spring body 141, one end of which is provided with a first extension 142 connected to the rotating cover 130. The end of the spring body 141 facing away from the first extension 142 is provided with a second extension 143 extending into the first insertion hole 121.

[0030] Please continue reading. Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, in this embodiment, the first end 1211 is the left end of the first socket 121 (with... Figure 1 (As shown from the perspective), the second end 1212 is the right end of the first socket 121 (with... Figure 1 (As shown from the perspective) In the initial state, i.e., the infant unfolded state, the first extension 142 is fixedly connected to the rotating cover 130, the second extension 143 is inserted into the first insertion hole 121, and the second extension 143 abuts against the first end 1211 and, under the elastic force of the spring body 141, gives the fixing seat 120 a clockwise rotational force. Figure 1As shown in the view, the force used to retract the vehicle is reduced when retracting it; correspondingly, after the vehicle is retracted, the second extension 143 is located at the second end 1212, and the second extension 143 abuts against the right inner wall of the first socket 121. Under the elastic force of the spring body 141, the second extension 143 gives the fixing seat 120 a counterclockwise rotational force.

[0031] Therefore, when the stroller unfolds, the elastic force of the spring body 141 reduces the force required to unfold the stroller. Furthermore, as the push tube 200 drives the fixing seat 120 to rotate counterclockwise, the second extension 143 of the spring body 141 returns to the position of the first end 1211. Once the second extension 143 returns to the first end 1211 position and continues to rotate with the push tube 200, driving the rotating plate 110 and the fixing seat 120, the fixing seat 120 will again provide a counterclockwise rotational force (to) the second extension 143 and the spring body 141. Figure 1 (As shown from the perspective), the spring body 141 contracts and transforms into the elastic force of the spring body 141. Then, under the action of the elastic force of the spring body 141, the rotating cover 130 and the support wire 300 connected to the rotating cover 130 rotate counterclockwise to return to the initial state. In this way, the cloth cover 310 connected to the support wire 300 can also return to the position of the initial state when the stroller is unfolded.

[0032] Please see Figure 4 As shown, Figure 4 Figure a shows the positions of the push tube 200, rotating plate 110, rotating cover 130, and support wire 300 in the stroller's unfolded state. Figure 6 As shown, the second extension 143 is located at the right end of the first socket 121, that is, at this time the second extension 143 is located at the first end 1211 of the first socket 121 and applies a clockwise force to the first socket 121. Figure 4 Figure b shows the support wire 300 abutting against the foot tube 400. At this point, the support wire 300 and the rotating cover 130 no longer rotate clockwise. (See reference...) Figure 7 As shown, at this time, the second extension 143 of the spring body 141 is also at the rightmost end of the first insertion hole 121, that is, at this time, the second extension 143 is at the first end 1211 of the first insertion hole 121. However, at this time, the elastic force of the spring body 141 has been released, and the second extension 143 no longer provides clockwise force to the fixing seat 120.

[0033] See Figure 8As shown, next, as the push tube 200 drives the rotating plate 110 and the fixed seat 120 to continue to rotate clockwise by a certain angle, the second extension 143 is located at the second end 1212 of the first insertion hole 121. At this time, due to the elasticity of the spring body 141 and the release of the same second extension 143, no longer a clockwise force is applied to the fixed seat 120.

[0034] See Figure 9 As shown, as the push tube 200 continues to drive the rotating plate 110 and the fixed base 120 to rotate clockwise by a certain angle, the left inner wall of the first insertion hole 121 applies a clockwise force to the second extension 143. That is, at this time, the spring body 141 contracts under pressure, and the second extension 143 applies a counterclockwise force to the left inner wall of the first insertion hole 121. Figure 4 As shown in Figure c, the folding and storage of the vehicle is achieved as the push tube 200 continues to rotate.

[0035] It is understandable that when the stroller is unfolded, the retracted state of the spring body 141 and the position of the second extension 143 are opposite to those when the stroller is folded up. Therefore, the position of the second extension 143 and the state of the spring body 141 during the stroller unfolding process will not be described in detail here.

[0036] In some embodiments, the rotating cover 130 has a second insertion hole 132 on the side facing the fixed base 120, and the first extension 142 extends into the second insertion hole 132.

[0037] See Figure 5 As shown, in order to fix the first extension 142 at the end of the spring body 141 to the rotating cover 130 without detaching, a second insertion hole 132 adapted to the first extension 142 is opened on the side of the rotating cover 130 facing the fixing seat 120. The first extension 142 is inserted into the second insertion hole 132 to complete the installation. It can be understood that the force given to the rotating cover 130 by the first extension 142 is a radial rotational force, not an axial force. Therefore, when the force from the spring body 141 is transmitted to the rotating cover 130 through the first extension 142, the first extension 142 will not detach from the rotating cover 130.

[0038] In some embodiments, the side of the fixed base 120 opposite to the rotating cover 130 is provided with a protrusion 123, and the side of the protrusion 123 opposite to the fixed base 120 is provided with a slot 1231. The rotating plate 110 is provided with a block 111 corresponding to the slot 1231, and the block 111 extends into the slot 1231.

[0039] Please see Figure 3 and Figure 5As shown, when the fixed base 120 and the rotating plate 110 are fastened together by rivets or bolts, in order to prevent relative rotation between the fixed base 120 and the rotating plate 110, a protrusion 123 is provided on the end face of the fixed base 120 away from the rotating cover 130, and a slot 1231 is provided on the protrusion 123. Correspondingly, a locking block 111 is provided on the rotating plate 110, so that the locking block 111 at least partially extends into the slot 1231 to achieve locking, so that when the rotating plate 110 drives the fixed base 120 to rotate, the two will not rotate relative to each other.

[0040] The card slot 1231 and the card block 111 have the same shape. For example, the shape of the card slot 1231 and the card block 111 can be a rectangle, a circle, or other shapes. The specific shape is not limited here.

[0041] In some embodiments, the rotating cover 130 includes a side plate 1301 and a ring 1302 connected to each other. The side plate 1301 and the ring 1302 enclose a receiving cavity 131. A connector 1303 is provided on the circumferential surface of the ring 1302. The connector 1303 is connected to the support wire 300. The side plate 1301 is rotatably connected to the fixed seat 120.

[0042] Please see Figure 3 and Figure 5 As shown, in order to accommodate the torsion spring 140, the side plate 1301 and the ring 1302 are integrally formed, and the ring 1302 protrudes along the axial direction of the side plate 1301 at the circumferential variable edge of the side plate 1301, thereby forming a receiving cavity 131 under the enclosure of the side plate 1301 and the ring 1302, and the torsion spring 140 is accommodated through the receiving cavity 131.

[0043] Furthermore, in order to enable the support wire 300 to be connected to the ring 1302 and rotate synchronously with the ring 1302, a connector 1303 is fixedly provided on the outer circumferential surface of the ring 1302, and the support wire 300 is connected to the ring 1302 through the connector 1303.

[0044] In some embodiments, the rotating cover 130 further includes an abutment post 1304, which is disposed on the side of the side plate 1301 facing the fixing seat 120. The side of the abutment post 1304 facing the fixing seat 120 has a second through hole 13041 passing through it. The fixing seat 120 has a first through hole 122 corresponding to the second through hole 13041. A rotating shaft (not shown in the figure) is disposed in the hole formed by the first through hole 122 and the second through hole 13041 communicating with each other.

[0045] Specifically, in order to ensure that the cavity 131 can also accommodate the torsion spring 140 after the fixed seat 120 seals the cavity 131, an abutment post 1304 is provided at the center of the side of the side plate 1301 facing the fixed seat 120. To prevent the fixed seat 120 from entering the cavity 131 as a whole, the abutment post 1304 abuts against the fixed seat 120 when the fixed seat 120 closes the cavity 131. In order to enable the side plate 1301 to rotate relative to the fixed seat 120, a second through hole 13041 is opened at the center of the abutment post 1304, and a first through hole 122 corresponding to the second through hole 13041 is opened on the fixed seat 120. Then, the second through hole 13041 and the first through hole 122 can be passed through the rotating shaft in sequence, so that the entire rotating cover 130 can rotate relative to the fixed seat 120 with the rotating shaft as the center.

[0046] In this embodiment, the type of rotating shaft is not limited, as long as it can make the rotating cover 130 rotate relative to the fixed base 120 and prevent the two from separating. The rotating shaft can also be a bolt. The bolt passes through the second through hole 13041 and the first through hole 122 in sequence and is finally screwed onto the rotating plate 110 to complete the installation.

[0047] In some embodiments, the inner side of the ring 1302 is provided with a first abutting block 133, and the side of the fixing seat 120 facing the rotating cover 130 is provided with a second abutting block 124. The second abutting block 124 extends at least partially into the receiving cavity 131 and is located on the rotation path of the first abutting block 133.

[0048] Please see Figure 1 , Figure 3 as well as Figure 5As shown, in practice, when using the stroller's basket, most users press down on the outer edge of the support wire 300 to facilitate loading and unloading goods. To prevent the support wire 300 from bending and deforming during daily use, a first abutment block 133 is provided on the inner circumferential wall of the ring 1302, and a second abutment block 124 is provided on the side of the fixing seat 120 facing the side plate 1301. After the fixing seat 120 is rotatably connected to the rotating cover 130, the second abutment block 124 is partially located in the receiving cavity 131, and the second abutment block 124 is located at the first abutment block 130. On the rotation path of the connecting block 133, specifically, when the user presses down on the support wire 300, it will drive the side plate 1301 and the ring 1302 to rotate clockwise. Correspondingly, the first abutting block 133 will also rotate clockwise with the ring 1302. During this process, the torsion spring 140 will be compressed under force. Finally, during the rotation, it will abut against the second abutting block 124. When the first abutting block 133 abuts against the second abutting block 124, the support wire 300 can no longer rotate. At this time, the support wire 300 has also rotated to the position required by the user. After unloading, when the user stops pressing down on the support wire 300, the side plate 1301, the ring 1302 and the support wire 300 are driven to return to their initial positions under the elastic force of the torsion spring 140. That is, at this time, the first abutting block 133 and the second abutting block 124 are also separated.

[0049] See Figure 10 As shown, this embodiment also provides a stroller, which includes a push tube 200, a reset mechanism of any of the above, a support wire 300, and a foot tube 400. A rotating plate 110 is fixedly connected to the push tube 200, the support wire 300 is fixedly connected to the rotating cover 130, and a cloth cover 310 is also connected to the support wire 300. The cloth cover 310 is shaped like a vegetable basket used by the user. The foot tube 400 is rotatably connected to the push tube 200.

[0050] The stroller includes all the structural features of the reset mechanism 100, and therefore, the stroller includes all the technical effects of the reset mechanism 100.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A reset mechanism, characterized in that, The reset mechanism (100) includes: Rotating plate (110), the rotating plate (110) is fixedly connected to the push tube (200); A fixed base (120) is fixedly connected to the rotating plate (110); A rotating cover (130) is rotatably connected to the fixed base (120), and a support wire (300) is also connected to the rotating cover (130). The rotating cover (130) has a receiving cavity (131), and the fixed base (120) is used to cover the receiving cavity (131). The fixed base (120) has a first insertion hole (121) on the side facing the rotating cover (130). A torsion spring (140) is disposed in the receiving cavity (131). One end of the torsion spring (140) is connected to the rotating cover (130). The end of the torsion spring (140) away from the rotating cover (130) is inserted into the first insertion hole (121) and abuts against the inner wall of the end of the first insertion hole (121).

2. The reset mechanism according to claim 1, characterized in that, The fixing seat (120) is an elongated arc-shaped groove.

3. The reset mechanism according to claim 2, characterized in that, The first insertion hole (121) extends circumferentially around the axis of the fixed base (120), and the first insertion hole (121) has a first end (1211) and a second end (1212). The end of the torsion spring (140) away from the rotating cover (130) is located at the first end (1211).

4. The reset mechanism according to claim 1, characterized in that, The torsion spring (140) includes a spring body (141), one end of which is provided with a first extension (142), the first extension (142) being connected to the rotating cover (130), and the end of the spring body (141) opposite to the first extension (142) being provided with a second extension (143), the second extension (143) extending into the first insertion hole (121).

5. The reset mechanism according to claim 4, characterized in that, The rotating cover (130) has a second insertion hole (132) on the side facing the fixed base (120), and the first extension (142) extends into the second insertion hole (132).

6. The reset mechanism according to claim 1, characterized in that, The fixed base (120) has a protrusion (123) on the side away from the rotating cover (130), and the protrusion (123) has a slot (1231) on the side away from the fixed base (120). The rotating plate (110) has a locking block (111) corresponding to the slot (1231), and the locking block (111) extends into the slot (1231).

7. The reset mechanism according to claim 1, characterized in that, The rotating cover (130) includes a side plate (1301) and a ring (1302) connected to each other. The side plate (1301) and the ring (1302) enclose the receiving cavity (131). A connector (1303) is provided on the circumferential surface of the ring (1302). The connector (1303) is connected to the support wire (300). The side plate (1301) is rotatably connected to the fixed seat (120).

8. The reset mechanism according to claim 7, characterized in that, The rotating cover (130) also includes an abutment post (1304), which is disposed on the side of the side plate (1301) facing the fixed seat (120). The side of the abutment post (1304) facing the fixed seat (120) has a second through hole (13041) that passes through it. The fixed seat (120) has a first through hole (122) corresponding to the second through hole (13041). A rotating shaft is disposed in the hole formed by the first through hole (122) and the second through hole (13041).

9. The reset mechanism according to claim 7, characterized in that, The inner side of the ring (1302) is provided with a first abutting block (133), and the side of the fixed seat (120) facing the rotating cover (130) is provided with a second abutting block (124). The second abutting block (124) extends at least partially into the receiving cavity (131), and the second abutting block (124) is located on the rotation path of the first abutting block (133).

10. A baby stroller, characterized in that, include: Push tube (200); The reset mechanism according to any one of claims 1 to 9, wherein the rotating plate (110) is fixedly connected to the push tube (200). A support wire (300) is fixedly connected to the rotating cover (130), and a cloth sleeve (310) is also connected to the support wire (300). The foot tube (400) is rotatably connected to the push tube (200).

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