Seat mounting adjuster for baby stroller

Abstract

A seat mounting adjuster for a baby stroller. Relates to the technical field of baby strollers. Comprising a first limiting piece, a second limiting piece and a locking assembly. The locking assembly comprises a shell and an unlocking piece, a sliding groove and a rotating groove which are communicated with each other are formed in the shell, the unlocking piece is arranged in the rotating groove and can slide up and down in the sliding groove, a rotating shaft and a spring bolt are arranged in the rotating groove, the lower portion of the spring bolt is arranged on the rotating shaft in a sleeving mode, and the lower portion of the spring bolt is arranged on the rotating shaft in a sleeving mode. The top of the spring bolt makes contact with the bottom of the unlocking piece, and the unlocking piece can push the spring bolt to rotate around the rotating shaft. When the upper portion of the spring bolt rotates to the outer side of the shell, the seat is in a locked state, and when the upper portion of the spring bolt rotates to the inner side of the shell, the seat is in an unlocked state. The second limiting pieces used for being connected with the frame are arranged on the two sides of the seat, an operator can conveniently observe butt joint of the second limiting pieces and the inserting positions on the seat, and the installation difficulty of the seat is lowered.

Description

Technical Field

[0001] The present application relates to the technical field of baby strollers, and in particular to a seat mounting adjuster for a baby stroller. Background Art

[0002] A baby stroller is a tool vehicle designed to facilitate outdoor activities for babies. There are various models of baby strollers, which are a means of transportation for babies to walk. In order to meet the different usage needs of users in different scenarios, the existing baby strollers have more functions. For example, the seat and the frame of the baby stroller are detachably connected, and the frame can be folded quickly and conveniently, so that the overall size of the baby stroller can be reduced, making it easier to place the baby stroller in a smaller storage space such as a car trunk.

[0003] In the Chinese patent document with the announcement number CN220410680U, a baby stroller with a detachable seat is disclosed, and specifically discloses an aluminum alloy frame, the top of the aluminum alloy frame is fixedly connected with a seat support, the top of the seat support is installed with a baby seat, and the bottom of the seat support is provided with a seat structure that is easy to disassemble. The baby stroller with a detachable seat is provided with a metal cover, a pull-out piece, an oblong groove, a limit block, a seat bottom lock pin and an anti-slip ring. When the pull-out piece is pushed inward along one side of the metal cover, the spring contracts to make the limit block position retreat, and the seat bottom lock pin at the bottom of the baby seat can be disengaged along the oblong groove, thereby realizing the function of facilitating the removal of the seat.

[0004] However, in the above-mentioned patent, the seat can be disassembled only by pushing and pulling the pull-out tab, which may lead to problems of easy misoperation and low safety. At the same time, in the process of installing the seat back into the frame, the locking pin at the bottom of the seat needs to be docked with the long circular groove. When the user holds the seat, the long circular groove is blocked by the seat and is in the visual blind spot, making it difficult for the user to quickly install the seat, resulting in a poor user experience. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present application provides a seat mounting adjuster for a baby stroller.

[0006] The present application is implemented by the following technical solution: a seat-mounted adjuster for a baby stroller is arranged on the side wall of the seat, and comprises a first limiter, a second limiter and a locking assembly, wherein the first limiter is arranged inside one side of the seat, the second limiter is arranged outside one side of the seat, and the first limiter and the second limiter are locked by bolts;

[0007] The locking assembly is movably connected to the outer side of the second limiting member, and the locking assembly includes a shell and an unlocking member. The shell is provided with a slide groove and a rotation groove that are interconnected. The unlocking member is arranged in the rotation groove and can slide up and down in the slide groove. The rotation groove is provided with a rotating shaft and a lock tongue. The lower part of the lock tongue is sleeved on the rotating shaft. The top of the lock tongue contacts the bottom of the unlocking member. The unlocking member can push the lock tongue to rotate around the rotating shaft.

[0008] When the upper portion of the locking tongue rotates to the outer side of the shell, the seat is in a locked state, and when the upper portion of the locking tongue rotates to the inner side of the shell, the seat is in an unlocked state.

[0009] Optionally, the slide groove extends along the height direction of the shell, the upper part of the rotating groove is connected to the slide groove, the lower part of the rotating groove is provided with a pair of card grooves, the two ends of the rotating shaft are respectively and one-to-one arranged in the pair of card grooves, the locking tongue comprises a wedge-shaped portion and a rotating portion, the rotating portion is tubular, the rotating shaft is passed through the rotating portion, the wedge-shaped portion is arranged at the top of the rotating portion, the inclined surface of the wedge-shaped portion faces away from the seat, and the outer diameter of the wedge-shaped portion gradually decreases from top to bottom;

[0010] An opening is provided on a side of the shell away from the seat, and the wedge-shaped portion rotates to the outside of the shell through the opening and engages with the frame.

[0011] Optionally, a first guide member is provided on both sides of the wedge-shaped portion, and two second guide members are provided at the lower part of the unlocking member, and the two second guide members are respectively and one-to-one located above the two first guide members;

[0012] A first inclined surface is provided on the top of the first guide member, a first groove is provided on the first guide member and below the first inclined surface, a second inclined surface is provided on the top of the second guide member, a second groove is provided on the second guide member and below the second inclined surface, and the first inclined surface and the second inclined surface interfere with each other in the vertical direction;

[0013] When the unlocking member moves downward, the first inclined surface can be inserted into the second groove, and the second inclined surface can be inserted into the first groove.

[0014] Optionally, a limit block is provided at the connection point between the slide groove and the rotating groove, a clamping block is provided on the side wall of the unlocking member, a clamping slot is provided on the side of the clamping block facing the bottom of the slide groove, a first spring is provided in the clamping slot, one end of the first spring abuts against the limit block, and the other end of the first spring abuts against the clamping block.

[0015] Optionally, a limiting hole is provided on the side of the wedge-shaped portion facing the rotating groove, a limiting column is provided in the rotating groove, the limiting column is truncated cone-shaped, the inner diameter of the limiting hole is larger than the minimum outer diameter of the limiting column, a second spring is sleeved on the limiting column, one end of the second spring abuts against the limiting column, and the other end of the second spring abuts against the limiting hole, and when the unlocking member moves downward, the second spring is in a compressed state.

[0016] Optionally, a button is provided on the top of the unlocking member, the button includes a pressing portion and a connecting portion, the pressing portion and the connecting portion are integrally formed and T-shaped, a through hole is provided on the top of the shell, the pressing portion is located on the outside of the shell, and the connecting portion extends into the slide groove and is connected to the unlocking member;

[0017] A accommodating groove is also provided in the shell, the upper part of the accommodating groove is communicated with the through hole, the lower part of the accommodating groove is communicated with the slide groove, the depth of the accommodating groove is greater than the depth of the slide groove, and when the bottom of the pressing part abuts against the lower part of the accommodating groove, the top of the pressing part is flush with the top of the shell.

[0018] Optionally, the side wall of the pressing portion is in contact with the inner wall of the through hole, a through hole is provided on the side wall of the pressing portion, a safety block is passed through the through hole, one end of the safety block is passed through the through hole, and the other end of the safety block is located outside the through hole and interferes with the top of the shell.

[0019] Optionally, a cavity is provided inside the pressing portion, the cavity is communicated with the through hole, the inner diameter of the cavity is larger than the inner diameter of the through hole, the safety block comprises a constant diameter portion and a variable diameter portion, the outer diameter of the constant diameter portion is smaller than or equal to the inner diameter of the through hole, and the maximum inner diameter of the variable diameter portion is larger than the inner diameter of the through hole and smaller than the inner diameter of the cavity;

[0020] A countersunk hole is provided at the end of the reducing portion, and a receiving hole is provided on the side of the cavity away from the through hole. The receiving hole is coaxially arranged with the countersunk hole. A third spring is provided in the cavity, one end of the third spring is clamped in the receiving hole, and the other end of the third spring is clamped in the countersunk hole.

[0021] Optionally, a pair of notches is further provided on the outer wall of the diameter-changing portion, the pair of notches are symmetrically arranged on both sides of the countersunk hole, the pair of notches are both connected to the countersunk hole, and the width of the notches is smaller than the outer diameter of the third spring.

[0022] Optionally, when the equal-diameter portion is located outside the through hole, the end of the variable-diameter portion abuts against the connection between the through hole and the cavity, and the third spring is in an incompletely compressed state.

[0023] Compared with the prior art, this application has the following beneficial effects:

[0024] 1. The second limiting member for connecting with the vehicle frame is arranged on both sides of the seat, so that the operator can observe the docking between the second limiting member and the plug-in position on the seat, thereby reducing the difficulty of installing the seat.

[0025] 2. A safety block is provided on the button to interfere with the shell, so that the user must first push the safety block into the inner side of the button before pressing the button, which prevents misoperation and improves the safety of the cart during use.

[0026] 3. The reverse push of the second spring on the lock tongue realizes a reliable connection between the first guide member and the second guide member, so that the button and the unlocking member will not automatically reset. That is, after the button is pressed and released, the lock tongue will remain in the shell, so that the seat remains unlocked, making it easier for the user to disassemble the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a reference diagram of the usage status of this application;

[0028] Figure 2 is a schematic stereogram of the present application;

[0029] Figure 3 Reference diagram of the explosion state of the locking assembly;

[0030] Figure 4 is a schematic three-dimensional diagram of an unlocking member and a locking tongue;

[0031] Figure 5 This is a reference image of the button in its exploded state;

[0032] Figure 6 It is a cross-sectional view of the internal structure of the button;

[0033] Figure 7 is a schematic stereogram of a safety block;

[0034] In the figure: 1, seat; 2, first limiting member; 20, bolt; 3, second limiting member; 4, locking assembly; 41, housing; 411, slide groove; 412, rotating groove; 413, clamping groove; 414, opening; 415, limiting block; 416, limiting column; 417, second spring; 418, through hole; 419, accommodating groove; 42, unlocking member; 421, second guide member; 4211, second inclined surface; 4212, second groove; 422, clamping block; 4220, bayonet; 423, first A spring; 43, a rotating shaft; 44, a locking tongue; 441, a wedge-shaped portion; 4410, a limiting hole; 442, a rotating portion; 443, a first guide member; 4431, a first inclined surface; 4432, a first groove; 45, a button; 451, a pressing portion; 4511, a perforation; 4512, a cavity; 4513, a receiving hole; 452, a connecting portion; 453, a safety block; 4531, an equal-diameter portion; 4532, a variable-diameter portion; 4533, a countersunk hole; 4534, a notch; 454, a third spring. DETAILED DESCRIPTION

[0035] Below, combined with the attached Figure 1-7 As well as specific implementation methods, the present application is further described. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0036] Figure 1 This is a reference diagram of the usage status of this application. Figure 2 is a schematic three-dimensional diagram of the present application. Figure 1 and Figure 2 The seat 1 mounting adjuster for the baby stroller is arranged on the side wall of the seat 1, and each seat 1 is provided with two seat 1 mounting adjusters, which are arranged on two opposite side walls of the seat 1. The seat 1 mounting adjuster includes a first limiting member 2, a second limiting member 3 and a locking assembly 4. The first limiting member 2 is arranged inside one side of the seat 1, and the second limiting member 3 is arranged outside one side of the seat 1. The first limiting member 2 and the second limiting member 3 are locked by bolts 20, and the locking assembly 4 is movably connected to the outer side of the second limiting member 3. Specifically, the locking assembly 4 and the second limiting member 3 can maintain a relatively static state, and can also be in a relatively rotating state. The seat 1 is installed on the frame, and the locking assembly 4 is used to lock the frame and the seat 1. When the locking assembly 4 and the second limiting member 3 can rotate, the angle between the seat 1 and the frame can also rotate, so that the reliable adjustment of the angle of the seat 1 can be achieved.

[0037] Figure 3 Reference diagram of the locked component in exploded state. Figure 4 is a schematic three-dimensional diagram of the unlocking member and the lock tongue. Figure 3 and Figure 4 Combined with Figure 2 The locking assembly 4 includes a housing 41 and an unlocking member 42. The housing 41 is provided with a receiving groove 419, a slide groove 411 and a rotation groove 412 which are interconnected from top to bottom. The receiving groove 419, the slide groove 411 and the rotation groove 412 all extend along the height direction of the housing 41. The depth of the receiving groove 419 is greater than the depth of the slide groove 411. The unlocking member 42 is arranged in the rotation groove 412 and can slide up and down in the slide groove 411. A through hole 418 is provided on the top of the housing 41. The through hole 418 is interconnected with the receiving groove 419. A rotating shaft 43 and a locking tongue 44 are provided in the rotating groove 412. Specifically, a pair of slots 413 are provided at the lower part of the rotating groove 412. The two ends of the rotating shaft 43 are respectively and one-to-one arranged in the pair of slots 413. The locking tongue 44 includes a wedge-shaped portion 441 and a rotating portion 442. The wedge-shaped portion 441 is arranged at the top of the rotating portion 442. The inclined surface of the wedge-shaped portion 441 faces away from the seat 1. The outer diameter of the wedge-shaped portion 441 gradually decreases from top to bottom. The rotating portion 442 is tubular. 43 is inserted into the rotating portion 442, so that the locking tongue 44 can rotate in the rotating groove 412. Furthermore, an opening 414 is provided on the side of the shell 41 away from the seat 1, and the wedge-shaped portion 441 is rotated to the outside of the shell 41 through the opening 414, and a corresponding socket is provided on the frame. When the second limiting member 3 is inserted into the frame, the part of the wedge-shaped portion 441 located outside the opening 414 will be inserted into the socket, thereby achieving locking of the seat 1.

[0038] Figure 5 This is a reference picture of the button's exploded state. Figure 6 This is a cross-sectional view of the internal structure of the button. Figure 5 and Figure 6A first guide member 443 is provided on both sides of the wedge-shaped portion 441, and two second guide members 421 are provided at the lower part of the unlocking member 42. The two second guide members 421 are respectively and one-to-one located above the two first guide members 443. A first inclined surface 4431 is provided on the top of the first guide member 443, and a first groove 4432 is provided on the first guide member 443 and below the first inclined surface 4431. A second inclined surface 4211 is provided on the top of the second guide member 421, and a second groove 4212 is provided on the second guide member 421 and below the second inclined surface 4211. The first inclined surface 4431 and the second inclined surface 4211 interfere with each other in the vertical direction. A button 45 is also provided on the top of the unlocking member 42. The button 45 includes a pressing portion 451 and a connecting portion 452. The pressing portion 451 and the connecting portion 452 are integrally formed and T-shaped. The pressing portion 451 is located on the outside of the housing 41, and the connecting portion 452 passes through the through hole 418 and extends into the accommodating groove 419. When the user presses the pressing portion 451, the pressing portion 451 and the connecting portion 452 move downward at the same time, so that the unlocking member 42 also moves downward synchronously. At this time, interference occurs between the first inclined surface 4431 and the second inclined surface 4211, and the second guide member 421 can only move in the vertical direction, which enables the first guide member 443 to rotate toward the inside of the rotating groove 412. Furthermore, a limiting hole 4410 is provided on the side of the wedge-shaped portion 441 facing the rotating groove 412, and a limiting column 416 is provided in the rotating groove 412. The limiting column 416 is truncated cone-shaped, and the inner diameter of the limiting hole 4410 is larger than the minimum outer diameter of the limiting column 416. A second spring 417 is sleeved on the limiting column 416, and one end of the second spring 417 abuts against the limiting column 416, and the other end of the second spring 417 abuts against the limiting hole 4410. When the first inclined surface 4431 interferes with the second inclined surface 4211 and causes the locking tongue 44 to rotate, the second spring 417 will be in a compressed state. As the second guide member 421 continues to move downward, the interference between the second inclined surface 4211 and the first inclined surface 4431 contacts, and a gap will exist between the first guide member 443 and the second guide member 421 in the horizontal direction. At this time, the second spring 417 releases energy and rebounds, pushing the wedge-shaped portion 441 to rotate, which enables the first inclined surface 4431 to be inserted into the second groove 4212, and the second inclined surface 4211 to be inserted into the first groove 4432, while the rotation angle of the wedge-shaped portion 441 is small, and the wedge-shaped portion 441 is still located in the rotation groove 412. In this way, after releasing the pressing portion 451, the unlocking member 42 will not be reset, and the user can remove the seat 1 from the frame by only grasping the seat 1, without having to keep pressing the pressing portion 451 while disassembling the seat 1, thereby reducing the difficulty of operation.

[0039] See also Figure 3 and Figure 4A limit block 415 is provided at the connection point between the slide groove 411 and the rotating groove 412, a block 422 is provided on the side wall of the unlocking member 42, a bayonet 4220 is provided on the side of the block 422 facing the bottom of the slide groove 411, a first spring 423 is provided in the bayonet 4220, one end of the first spring 423 abuts against the limit block 415, and the other end of the first spring 423 abuts against the block 422. When the driving pressing part 451 moves downward and drives the unlocking member 42 to move downward, the first spring 423 will be in a compressed state. When the seat 1 is reinstalled on the frame, the corresponding unlocking rod provided on the frame will push the lock tongue 44. At this time, the hooking effect between the first guide member 443 and the second guide member 421 is released. At the same time, under the energy release and rebound action of the first spring 423, the button 45 and the unlocking member 42 will be instantly reset, so that the seat 1 is locked again.

[0040] Figure 7 is a schematic three-dimensional diagram of the safety block. Figure 7 Combined with Figure 6 and Figure 5 The side wall of the pressing part 451 is fitted with the inner wall of the through hole 418. A through hole 4511 is provided on the side wall of the pressing part 451. A cavity 4512 is provided inside the pressing part 451. The cavity 4512 is connected with the through hole 4511. The inner diameter of the cavity 4512 is larger than the inner diameter of the through hole 4511. A safety block 453 is provided in the through hole 4511. The safety block 453 includes a constant diameter portion 4531 and a variable diameter portion 4532. The outer diameter of the constant diameter portion 4531 is less than or equal to the inner diameter of the through hole 4511. The maximum inner diameter of the variable diameter portion 4532 is larger than the inner diameter of the through hole 4511 and smaller than the inner diameter of the cavity 4512. The constant diameter portion 4531 can slide in the through hole 4511 or the cavity 4512, while the variable diameter portion 4532 can only slide in the cavity 4512. A countersunk hole 4533 is provided at the end of the reducing portion 4532, and a receiving hole 4513 is provided on the side of the cavity 4512 away from the through hole 4511. The receiving hole 4513 and the countersunk hole 4533 are coaxially arranged. A third spring 454 is provided in the cavity 4512, and one end of the third spring 454 is clamped in the receiving hole 4513, and the other end of the third spring 454 is clamped in the countersunk hole 4533. A pair of notches 4534 are also provided on the outer wall of the reducing portion 4532. The pair of notches 4534 are symmetrically arranged on both sides of the countersunk hole 4533. The pair of notches 4534 are both connected to the countersunk hole 4533. The width of the notches 4534 is smaller than the outer diameter of the third spring 454. The setting of the notches 4534 reduces the radial strength of the reducing portion 4532, so that the reducing portion 4532 can be pressed during installation, causing the reducing portion 4532 to produce elastic deformation, thereby ensuring that the reducing portion 4532 can pass through the through hole 4511 and enter the cavity 4512.

[0041] The third spring 454 is always in an incompletely compressed state. Thus, when no external force acts on the equal-diameter portion 4531, under the pushing action of the third spring 454, the variable-diameter portion 4532 will press against the connection between the through hole 4511 and the cavity 4512. At the same time, a part of the equal-diameter portion 4531 will be located outside the through hole 4511, so that there is interference between the equal-diameter portion 4531 and the housing 41 in the vertical direction. Thus, when the user directly presses the button 45, under the limiting action of the equal-diameter portion 4531 (i.e., the safety block 453), the pressing portion 451 cannot move, which plays a role in preventing misoperation and effectively improves the safety of the cart during use. When the equal-diameter portion 4531 is fully pushed into the through hole 4511, the button 45 is pressed downward, the safety action of the safety block 453 is released, and the button 45 can be pressed into the housing 41, thereby changing to an unlocked state.

[0042] The present application provides a safety block 453 on the pressing portion 451 of the button 45, so that the user must first press the safety block 453 in the horizontal direction before pressing the button 45 in the vertical direction, which effectively improves the safety of operation and prevents the seat 1 from falling off due to misoperation by children. At the same time, the second limiter 3 used for connecting with the frame is arranged on both sides of the seat 1, and the user can see the plugging position of the second limiter 3 and the frame by slightly tilting the head, thereby reducing the difficulty of docking between the seat 1 and the frame and improving the installation efficiency of the seat 1. Further, after the button 45 is pressed into the accommodating groove 419, under the joint action of the second spring 417 and the third spring 454, the first guide member 443 and the second guide member 421 are in a state of mutual hooking, which makes the button 45 and the lock tongue 44 not automatically rebound after releasing the button 45. In this way, the user can disassemble the seat 1 by simply grabbing the seat 1 and lifting it downward, thereby improving the disassembly efficiency of the seat 1.

[0043] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. A seat-mounted adjuster for a baby stroller, arranged on a side wall of a seat (1), characterized in that: The seat (1) comprises a first limiting member (2), a second limiting member (3) and a locking assembly (4), wherein the first limiting member (2) is arranged inside one side of the seat (1), and the second limiting member (3) is arranged outside one side of the seat (1), and the first limiting member (2) and the second limiting member (3) are locked by a bolt (20); The locking assembly (4) is movably connected to the outer side of the second limiting member (3), and the locking assembly (4) comprises a shell (41) and an unlocking member (42). The shell (41) is provided with a sliding groove (411) and a rotating groove (412) which are interconnected. The unlocking member (42) is arranged in the rotating groove (412) and can slide up and down in the sliding groove (411). The rotating groove (412) is provided with a rotating shaft (43) and a locking tongue (44). The lower part of the locking tongue (44) is sleeved on the rotating shaft (43), and the top of the locking tongue (44) contacts the bottom of the unlocking member (42). The unlocking member (42) can push the locking tongue (44) to rotate around the rotating shaft (43). When the upper part of the locking tongue (44) is rotated to the outside of the shell (41), the seat (1) is in a locked state, and when the upper part of the locking tongue (44) is rotated to the inside of the shell (41), the seat (1) is in an unlocked state.

2. The seat mounting adjuster for a baby stroller according to claim 1, characterized in that: The slide groove (411) extends along the height direction of the shell (41), the upper part of the rotating groove (412) is connected to the slide groove (411), the lower part of the rotating groove (412) is provided with a pair of clamping grooves (413), the two ends of the rotating shaft (43) are respectively and one-to-one arranged in the pair of clamping grooves (413), the locking tongue (44) comprises a wedge-shaped portion (441) and a rotating portion (442), the rotating portion (442) is tubular, the rotating shaft (43) is inserted into the rotating portion (442), the wedge-shaped portion (441) is arranged at the top of the rotating portion (442), the inclined surface of the wedge-shaped portion (441) faces away from the seat (1), and the outer diameter of the wedge-shaped portion (441) gradually decreases from top to bottom; An opening (414) is provided on a side of the shell (41) away from the seat (1), and the wedge-shaped portion (441) rotates to the outside of the shell (41) through the opening (414) and engages with the vehicle frame.

3. The seat mounting adjuster for a baby stroller according to claim 2, characterized in that: A first guide member (443) is provided on both sides of the wedge-shaped portion (441), and two second guide members (421) are provided at the lower part of the unlocking member (42), and the two second guide members (421) are respectively and one-to-one located above the two first guide members (443); A first inclined surface (4431) is provided at the top of the first guide member (443), a first groove (4432) is provided on the first guide member (443) and below the first inclined surface (4431), a second inclined surface (4211) is provided at the top of the second guide member (421), a second groove (4212) is provided on the second guide member (421) and below the second inclined surface (4211), and the first inclined surface (4431) and the second inclined surface (4211) interfere with each other in the vertical direction; When the unlocking member (42) moves downward, the first inclined surface (4431) can be inserted into the second groove (4212), and the second inclined surface (4211) can be inserted into the first groove (4432).

4. The seat mounting adjuster for a baby stroller according to claim 2, characterized in that: A limit block (415) is provided at the connection point between the slide groove (411) and the rotating groove (412); a clamping block (422) is provided on the side wall of the unlocking member (42); a clamping slot (4220) is provided on the side of the clamping block (422) facing the bottom of the slide groove (411); a first spring (423) is provided in the clamping slot (4220); one end of the first spring (423) abuts against the limit block (415), and the other end of the first spring (423) abuts against the clamping block (422).

5. The seat mounting adjuster for a baby stroller according to claim 3, characterized in that: A limiting hole (4410) is provided on the side of the wedge-shaped portion (441) facing the rotating groove (412), a limiting column (416) is provided in the rotating groove (412), the limiting column (416) is truncated cone-shaped, the inner diameter of the limiting hole (4410) is larger than the minimum outer diameter of the limiting column (416), a second spring (417) is sleeved on the limiting column (416), one end of the second spring (417) is in contact with the limiting column (416), and the other end of the second spring (417) is in contact with the limiting hole (4410), and when the unlocking member (42) moves downward, the second spring (417) is in a compressed state.

6. The seat mounting adjuster for a baby stroller according to claim 4 or 5, characterized in that: A button (45) is provided on the top of the unlocking member (42), the button (45) comprises a pressing portion (451) and a connecting portion (452), the pressing portion (451) and the connecting portion (452) are integrally formed and are T-shaped, a through hole (418) is provided on the top of the shell (41), the pressing portion (451) is located on the outside of the shell (41), and the connecting portion (452) extends into the slide groove (411) and is connected to the unlocking member (42); The shell (41) is also provided with a receiving groove (419), the upper part of the receiving groove (419) is communicated with the through hole (418), the lower part of the receiving groove (419) is communicated with the slide groove (411), the depth of the receiving groove (419) is greater than the depth of the slide groove (411), and when the bottom of the pressing portion (451) abuts against the lower part of the receiving groove (419), the top of the pressing portion (451) is flush with the top of the shell (41).

7. The seat mounting adjuster for a baby stroller according to claim 6, characterized in that: The side wall of the pressing portion (451) is fitted with the inner wall of the through hole (418); a through hole (4511) is provided on the side wall of the pressing portion (451); a safety block (453) is passed through the through hole (4511); one end of the safety block (453) is passed through the through hole (4511); the other end of the safety block (453) is located outside the through hole (4511) and interferes with the top of the shell (41).

8. The seat mounting adjuster for a baby stroller according to claim 7, characterized in that: A cavity (4512) is provided inside the pressing portion (451), the cavity (4512) is communicated with the through hole (4511), the inner diameter of the cavity (4512) is larger than the inner diameter of the through hole (4511), the safety block (453) comprises a constant diameter portion (4531) and a variable diameter portion (4532), the outer diameter of the constant diameter portion (4531) is smaller than or equal to the inner diameter of the through hole (4511), and the maximum inner diameter of the variable diameter portion (4532) is larger than the inner diameter of the through hole (4511) and smaller than the inner diameter of the cavity (4512); A countersunk hole (4533) is provided at the end of the reducing portion (4532), and a receiving hole (4513) is provided on the side of the cavity (4512) away from the through hole (4511), and the receiving hole (4513) is coaxially arranged with the countersunk hole (4533). A third spring (454) is provided in the cavity (4512), and one end of the third spring (454) is clamped in the receiving hole (4513), and the other end of the third spring (454) is clamped in the countersunk hole (4533).

9. The seat mounting adjuster for a baby stroller according to claim 8, characterized in that: A pair of notches (4534) is also provided on the outer wall of the reducing portion (4532), and the pair of notches (4534) are symmetrically arranged on both sides of the countersunk hole (4533), and the pair of notches (4534) are both connected to the countersunk hole (4533), and the width of the notches (4534) is smaller than the outer diameter of the third spring (454).

10. The seat mounting adjuster for a baby stroller according to claim 8, characterized in that: When the equal diameter portion (4531) is located outside the through hole (4511), the end of the variable diameter portion (4532) abuts against the connection between the through hole (4511) and the cavity (4512), and the third spring (454) is in an incompletely compressed state.

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