TW201601951A - Adjusting mechanism and child safety seat therewith - Google Patents

Abstract

An adjusting mechanism for adjusting a length of a supporting leg includes an adjusting assembly. The adjusting assembly includes an engaging member, at least two engaging portions, a driving member, and an operating member. The engaging member, the operating member, and the driving member are movably disposed on one of a first supporting pipe and a second supporting pipe of the supporting leg. The driving member is linked between the engaging member and the operating member. The engaging portions are formed on the other one of the first supporting pipe and the second supporting pipe and are arranged along a telescopic direction of the first supporting pipe relative to the second supporting pipe. The engaging member selectively engages with one of the engaging portions. The operating member drives the driving member to drive the engaging member to disengage from the corresponding engaging portion.

Description

Adjustment mechanism and child safety seat having the adjustment mechanism

The present invention relates to a carrier, and more particularly to an adjustment mechanism and a child safety seat having the same.

With the continuous advancement of society, the continuous development of the economy, and the continuous improvement of science and technology, in order to improve people's living standards, people's lives are filled with more and more consumer goods, and children's vehicles are one of many consumer goods. Among them, in children's vehicles, children's safety seats are more and more popular because they not only have the advantages of riding comfort, but also provide children with safe protection.

It is well known that when a child safety seat is mounted on a load such as a car seat, it is necessary to support the child safety seat by supporting the child safety seat by providing a support foot at the bottom of the child safety seat to strengthen the child. The safety seat is fixed and fixed. However, in the current market, the length of the support foot of the child safety seat is often fixed. When the child safety seat is mounted on a load such as a car seat of different sizes, the support foot of the child safety seat tends to If the length is too long or too short, the support foot can not play a supporting role, so that the support foot can not properly assist the installation and fixation of the child safety seat, so that the child safety seat is fixed and unstable, and is given to the child. The safety seat is securely mounted and can even cause damage to children in child safety seats, thus reducing the safety of the ride.

In addition, there is a support leg that can be adjusted in length to adapt to the child safety seat installed on a car seat such as a car seat of different sizes, but the structure of the support leg is extremely complicated and the manufacturing cost is very high. Expensive, the operation process of adjusting the length of the support foot is extremely complicated and complicated, which causes inconvenience in use, and its structure is not reliable. Therefore, there are also safety concerns, which are far from satisfying the user's use requirements, seriously affecting the user's use and the child safety seat. Promotion and popularization.

Therefore, there is an urgent need for an adjustment mechanism and a child safety seat having the adjustment mechanism to overcome the above problems.

An object of the present invention is to provide an adjustment mechanism capable of adjusting the length of a support leg to a desired length, a simple and reliable structure, a simpler and more convenient adjustment operation, and a reduction in production cost.

Another object of the present invention is to provide a child safety seat capable of adjusting the length of the support leg to a desired length, having a simple and reliable structure, a simpler and more convenient adjustment operation, and a reduction in production cost.

To achieve the above object, the present invention provides an adjustment mechanism that is mounted on a support leg to adjust the length of the support leg. The support leg includes a first support tube and a second support tube that are relatively telescopic. The adjustment mechanism includes a first An adjustment component. The first adjusting component comprises a first engaging component, at least two first engaging portions, a driving component and a first operating component. The first engaging member is movably disposed at one end of one of the first support tube and the second support tube. The at least two first engaging portions are disposed on the other one of the first supporting tube and the second supporting tube, and the at least two first engaging portions are arranged along one of the first supporting tube and the second supporting tube in a direction of relative expansion and contraction, first The engaging member is selectively engaged with any of the at least two first engaging portions. The driving member is movably disposed on the first support tube or the second support tube having the first engaging member. The first operating member is movably disposed at the other end of the first supporting tube or the second supporting tube, and the driving member is disposed between the first engaging member and the first operating member. The operating member drives the driving member to drive the first engaging member to be disengaged from the corresponding first engaging portion.

Preferably, the first adjusting component further includes a first mounting seat disposed on the first supporting tube or the second supporting tube having the first engaging member, and the first engaging member is movably disposed on the first mounting seat .

Preferably, the first mounting seat is disposed at an end of the first supporting tube adjacent to the second supporting tube, and the first engaging member is slidably disposed along one of the directions of the first supporting tube and the second supporting tube relatively extending and contracting. The first mounting seat and the at least two first engaging portions are disposed on the second supporting tube.

Preferably, the first adjusting component further includes a first elastic member, one end of which abuts at least one of the first supporting tube and the first mounting seat, and the other end of the first elastic member abuts against the driving member, and the first An elastic member constantly drives the driving member to move the first engaging member toward the corresponding first engaging portion.

Preferably, the driving member is slidably disposed on the first supporting tube in a direction staggering in a sliding direction of one of the first engaging members, and the driving member drives the first engaging member to selectively engage with at least two first engaging portions. Either one of them is engaged or disengaged from each other.

Preferably, the first engaging member is slidably disposed in the first mounting seat in a direction perpendicular to a direction in which the first supporting tube and the second supporting tube are relatively telescopic, and the driving member is parallel to the first supporting tube and the second supporting portion. The tube is slidably disposed in the first support tube in a direction opposite to the direction of expansion and contraction.

Preferably, at least one positioning elongated hole is formed on the first mounting seat along the sliding direction of the first engaging member, and at least one driving elongated hole is formed obliquely on the driving member along a sliding direction of the driving member, A latching member is provided with at least one linkage rod, and the linkage rod is slidably disposed in the positioning elongated hole and the driving elongated hole, and the driving member drives the driving elongated hole to push the linkage rod to slide along the positioning elongated hole, and is linked The rod drives the first engaging member to selectively engage or disengage from the at least two first engaging portions.

Preferably, the driving elongated hole is inclined in a direction away from a center line of the first supporting tube in a direction from the second supporting tube to the first supporting tube, and the first elastic member constantly drives the driving member toward the second supporting tube. mobile.

Preferably, a limiting elongated hole is formed on the driving member along a sliding direction of the driving member, the first mounting seat is provided with a positioning rod, and the positioning rod is slidably inserted into the limiting elongated hole.

Preferably, the first adjusting component further comprises a second mounting seat, the second mounting seat is disposed on the first supporting tube or the second supporting tube having the first engaging member, and the first mounting seat is located at the first engaging part One end of the first support tube or the second support tube, the second mounting seat is located at the other end of the first support tube or the second support tube having the first engaging member, and the first operating member is movably disposed on the second mounting seat.

Preferably, the first adjusting component further includes a second mounting seat, the second mounting seat is disposed at one end of the first supporting tube away from the second supporting tube, and the first operating member is slidably disposed on the second mounting seat.

Preferably, the sliding direction of one of the first operating members is staggered in the sliding direction of the driving member, and the first operating member is formed away from the one end of the driving member with a first operating portion exposed to the outside of the second mounting seat, and the first operating member is adjacent to the first operating member. One end of the driving member is formed with a driving portion. The driving member is formed with a receiving portion near one end of the first operating member. The driving portion and the receiving portion slidably contact, and at least one of the two surfaces contacting the driving portion and the receiving portion forms a slope structure. And when the first operating portion is pushed and pushed toward the driving member, the first operating portion drives the driving portion to push the receiving portion, so that the driven portion drives the driving member to drive the first engaging member to be disengaged from the corresponding first Engagement department.

Preferably, both surfaces of the driving portion and the driven portion are respectively formed with a sloped structure, and the inclined structure is inclined in a direction away from the center line of the first supporting tube along the direction of the second supporting tube to the first supporting tube.

Preferably, the first adjusting component further includes a second elastic member, the second elastic member abuts between one of the first supporting tube and the second mounting seat and the first operating member, and the second elastic member is constant The first operating member is driven to move away from the driving member.

Preferably, the at least two first engaging portions are respectively formed in an engaging hole of the second supporting tube, and are engaged with the first engaging member in cooperation with each other.

Preferably, the second mounting seat is further provided with an indicating component, the indicating component includes an indicating block and a third elastic component, and the indicating block is movably disposed on the second mounting seat away from one end of the first supporting pipe, and the second mounting seat is away from the second mounting seat. A through hole is defined in the end of the first support tube, and the indicating block includes a first indicating portion, a second indicating portion and an abutting convex portion arranged in a direction along the direction from the first supporting tube to the second mounting seat, and the protruding convex portion The sliding portion is slidably disposed in the through hole, the resisting convex portion is selectively hidden or protruded from the through hole, and one side of the second mounting seat is provided with an indication window for exposing the first indicating portion or the second indicating portion. The third elastic member abuts between one of the second mounting seat and the first supporting tube and the indicating block, and the third elastic member constantly drives the indicating block to move away from the first supporting tube to drive the protruding convex portion The through hole, wherein the indicating window reveals the first indicating portion when the resisting convex portion protrudes from the through hole, and the indicating window reveals the second indicating portion when the resisting convex portion is hidden in the through hole.

Preferably, when the indication window reveals the first indication portion, the support foot is in the wrong use position, and when the indication window reveals the second indication portion, the support foot is in the correct use position.

Preferably, the supporting leg further comprises a third supporting tube which is extendable and contractable relative to the second supporting tube, and the adjusting mechanism further comprises a second adjusting component, which comprises a second engaging component and is connected with the second engaging component. a second operating member, the second operating member and the second engaging member are movably disposed on one of the second supporting tube and the third supporting member, and the other of the second supporting tube and the third supporting tube is disposed at least Two second engaging portions, at least two second engaging portions are arranged along one direction of the second supporting tube and the third supporting tube, and the second engaging member is selectively engaged with the at least two second engaging portions. Either the second operating member drives the second engaging member to be disengaged from the corresponding second engaging portion.

Preferably, the second adjusting component further comprises a third mounting seat, the third mounting seat is disposed on the second supporting tube or the third supporting tube having the second engaging member, and the second engaging member is movably disposed at the second Three mounts.

Preferably, the third mounting seat is disposed on the third supporting tube, the second engaging member is pivotally connected to the third mounting seat, and the at least two second engaging portions are disposed on the second supporting tube.

Preferably, one of the second engaging members has a first engaging convex portion extending toward the second supporting tube, and the first engaging convex portion is selectively engaged with any of the at least two second engaging portions. By.

Preferably, the second operating member is mounted on the second engaging member away from the one end of the first engaging convex portion, and the pivotal position of the second engaging member and the third mounting seat is located at the first engaging convex portion and the first engaging portion Between the two operating parts.

Preferably, the second adjusting component further includes a fourth elastic component, one end of the fourth elastic component abuts one of the third supporting pipe and the third mounting seat, and the other end of the fourth elastic component abuts And one of the second engaging member and the second operating member, and the fourth elastic member constantly drives the second engaging member to move the first engaging convex portion toward the corresponding second engaging portion.

Preferably, the fourth elastic member is a torsion spring, and the middle portion of the torsion spring is disposed on the third mounting seat, one end of the torsion spring abuts against the third supporting tube, and the other end of the torsion spring abuts against the second operating member .

Preferably, the at least two second engaging portions are respectively formed in one of the engaging holes of the second supporting tube, and are engaged with the first engaging convex portion in cooperation with each other.

Preferably, the at least two first engaging portions and the at least two second engaging portions are respectively formed in one of the engaging holes of the second supporting tube, the engaging hole and the first engaging convex portion or the first engaging member Engaged in cooperation.

In order to achieve the above object, the present invention provides a child safety seat comprising a seat set and a support leg for supporting the seat set, the support leg is mounted on the seat set, and the child safety seat further comprises There is the aforementioned adjustment mechanism which is mounted on the support leg to adjust the length of the support leg.

Since the adjustment mechanism of the present invention includes the first adjustment component, the first adjustment component includes a first engagement component, at least two first engagement portions, a drive member, and a first operation member. The first engaging member is movably disposed at one of the first support tube and the second support tube. The at least two first engaging portions are disposed on the other one of the first supporting tube and the second supporting tube, and the at least two first engaging portions are arranged along one of the first supporting tube and the second supporting tube in a direction of relative expansion and contraction, first The engaging member is selectively engaged with any of the at least two first engaging portions. The driving member is movably disposed on the first supporting tube or the second supporting tube having the first engaging member, and the driving member is disposed between the first engaging member and the first operating member. The first operating member is movably disposed at the other end of the first supporting tube or the second supporting tube having the first engaging member, and the first operating member drives the driving member to drive the first engaging member to be disengaged from the corresponding first card Joint department. The structure of the adjusting mechanism of the invention is simple and reliable, thereby reducing the production cost and improving the safety of use. When the first engaging member is engaged with any of the first engaging portions, the relative expansion and contraction between the second supporting tube and the first supporting tube is restricted; when the first operating member is operated to drive the driving member to drive the first engaging portion When the piece is disengaged from the first engaging portion, the second supporting tube can be operated to be telescopically movable relative to the first supporting tube to adjust the combined length of the first supporting tube and the second supporting tube to a desired length. That is, the length of the support leg is adjusted to the required length, and then the first engaging member is engaged with the other corresponding first engaging portion, thereby completing the length adjustment operation of the supporting leg, and the adjusting operation is simpler. Convenient and convenient for users to use. Since the child safety seat of the present invention has the adjustment mechanism of the present invention, the child safety seat of the present invention also has the ability to adjust the length of the support leg to the required length, the structure is simple and reliable, the adjustment operation is simpler and more convenient, and the reduction can be reduced. The advantages of production costs, but also improve the safety of children's ride. The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention.

The present invention is further described below in conjunction with the drawings and preferred embodiments of the invention, but the embodiments of the invention are not limited thereto.

Referring to FIG. 1 , FIG. 1 is a perspective view showing a combination of an adjustment mechanism 100 and a child safety seat 200 according to a first embodiment of the present invention. The child safety seat 200 includes a seat set 50 and a support leg 40 for supporting the seat set 50, and the support leg 40 is mounted to the seat set 50. Specifically, in the embodiment, the seat set 50 includes a seat body 51 and a base 52. The seat body 51 is disposed on the base 52. The top end of the support leg 40 is mounted on the base 52 when the support foot 40 is used. The supporting legs 40 are disposed along a vertical direction to play the supporting role of the supporting legs 40, but the invention is not limited thereto. The adjustment mechanism 100 of the present embodiment is mounted to the support leg 40 to adjust the length of the support leg 40.

Please refer to FIG. 2 to FIG. 4 . FIG. 2 is a perspective view showing the combination of the adjusting mechanism 100 and the supporting leg 40 at a length position according to the first embodiment of the present invention. Fig. 3 is a perspective view showing the combination of the adjusting mechanism 100 of the first embodiment of the present invention and the supporting legs 40 at another length. Figure 4 is a cross-sectional view of the adjustment mechanism 100 of the first embodiment of the present invention and the support legs 40 at another length position. In this embodiment, the support leg 40 includes a first support tube 41 and a second support tube 42 that are relatively telescopic. The second support tube 42 is mounted on the base 52 away from one end of the first support tube 41. In detail, the first support tube 41 is slidably disposed in the second support tube 42 in a direction parallel to the second support tube 42 to achieve relative expansion and contraction between the first support tube 41 and the second support tube 42. However, the present invention does not This is limited to this. Preferably, the first support tube 41 is slidably disposed inside the second support tube 42 to make the two structures more closely coupled, but the invention is not limited thereto.

Please refer to FIG. 2 to FIG. 5 . FIG. 5 is an enlarged schematic view of the adjusting mechanism 100 and the supporting leg 40 at another length position according to the first embodiment of the present invention. The adjustment mechanism 100 of the present embodiment includes a first adjustment component 20, and the first adjustment component 20 includes a first engagement component 21, at least two first engagement portions (not shown), a drive component 23, and a The first operating member 25 is movably disposed at one end of one of the first support tube 41 and the second support tube 42 . The first operating member 25 is movably disposed on the first engaging member 21 . The other end of the first support tube 41 or the second support tube 42 is movably disposed on the first support tube 41 or the second support tube 42 having the first engaging member 21, and is disposed in the first place. Between the engaging member 21 and the first operating member 25, the first engaging portion is disposed on the other of the first supporting tube 41 and the second supporting tube 42, and the specific number of the first engaging portion can be set according to actual conditions. The invention is not limited by the flexible selection using the requirements. The first engaging portion is arranged along one of the first supporting tube 41 and the second supporting tube 42 in a direction of extension and contraction. Preferably, the distance between the adjacent two first engaging portions is designed to be equal, so that the use is more convenient, but The invention is not limited to this. Preferably, in the embodiment, the first engaging member 21 is movably disposed at one end of the first supporting tube 41, and the first operating member 25 is movably disposed at the other end of the first supporting tube 41, and the driving member 23 is movably The first supporting tube 41 is disposed on the first supporting tube 41, and the first engaging portion is correspondingly disposed on the second supporting tube 42. However, the invention is not limited thereto. In other embodiments, the first engaging member 21, the driving member 23 and the first operating member 25 are also movably disposed on the second supporting tube 42 , and the first engaging portion is correspondingly disposed on the first supporting tube 41 . , will not repeat them here. The first engaging member 21 is selectively engaged with any of the first engaging portions, and the first operating member 25 drives the driving member 23 to disengage the first engaging member 21 from the first engaging portion, so that the present embodiment The structure of the adjustment mechanism 100 is simple and reliable, thereby reducing production costs and improving safety of use. When the first engaging member 21 is engaged with any of the first engaging portions, the relative expansion and contraction between the first supporting tube 41 and the second supporting tube 42 is restricted; when the first operating member 25 is operated to drive the driving member When the first engaging member 21 is disengaged from the first engaging portion, the second supporting tube 42 can be operated to be telescopically movable relative to the first supporting tube 41 to adjust the length of the supporting leg 40 to a desired length. Then, the first engaging member 21 is engaged with the corresponding first engaging portion, so that the length adjusting operation of the supporting leg 40 is completed, the adjusting operation is simpler and more convenient, and the user's usability is greatly improved.

Referring to FIG. 4, FIG. 5 and FIG. 7, FIG. 7 is a schematic perspective structural view of the driving member 23 of the adjusting mechanism 100 according to the first embodiment of the present invention. The first adjusting component 20 further includes a first mounting seat 22 , and the first mounting seat 22 is disposed on the first supporting tube 41 . Preferably, in the embodiment, the first mounting seat 22 is disposed at one end of the first support tube 41 near the second support tube 42. In other embodiments, the first mounting seat 22 is correspondingly disposed on the second supporting tube 42 according to the case where the first engaging member 21 is movably disposed on the second supporting tube 42 , and details are not described herein again. Preferably, the first mounting seat 22 is disposed inside the first supporting tube 41 to reduce the occupied space, but the invention is not limited thereto. The first engaging member 21 is movably disposed on the first mounting seat 22 . In detail, the first engaging member 21 is slidably disposed in the direction in which the first supporting tube 41 and the second supporting tube 42 are relatively stretched and contracted. A mounting seat 22 is configured such that the first engaging member 21 prevents the first supporting tube 41 from rotating and sliding relative to the second supporting tube 42, but the invention is not limited thereto. Preferably, in the embodiment, the first adjusting component 20 further includes a first elastic member 24, and one end of the first elastic member 24 abuts at least one of the first supporting tube 41 and the first mounting seat 22, The other end of the first elastic member 24 abuts against the driving member 23. Preferably, in the embodiment, the first elastic member 24 abuts between the first mounting seat 22 and the driving member 23, but the present invention does not This is limited. The first elastic member 24 constantly drives the driving member 23 to drive the first engaging member 21 to move toward the corresponding first engaging portion, so that the first engaging member 21 can be automatically reset and engaged with the corresponding first card. Fit the door to make the operation more convenient and labor-saving. Specifically, in this embodiment, the driving member 23 is slidably disposed in one direction of the sliding direction of one of the first engaging members 21 in at least one of the first supporting tube 41 and the first mounting seat 22, and is preferably The driving member 23 is slidably disposed inside the first supporting tube 41 to reduce the occupied space, but the invention is not limited thereto. The driving member 23 slidably urges the first engaging member 21 to selectively engage or disengage from any of the first engaging portions. More specifically, the first engaging member 21 is preferably slidably disposed in the first mounting seat 22 in a direction perpendicular to the direction in which the first supporting tube 41 and the second supporting tube 42 are relatively telescopic, such that the first engaging member The effect of preventing the first support tube 41 from stretching and sliding relative to the second support tube 42 can be achieved, but the invention is not limited thereto. The driving member 23 is preferably slidably disposed in the first supporting tube 41 in a direction parallel to the direction in which the first supporting tube 41 and the second supporting tube 42 are relatively stretched and contracted, but the invention is not limited thereto.

More specifically, at least one positioning elongated hole 221 is formed on the first mounting seat 22 along the sliding direction of the first engaging member 21, at least one driving elongated hole 231 is formed in the driving member 23, and the elongated hole 231 is driven. It is disposed obliquely along the sliding direction of one of the driving members 23. The first engaging member 21 is provided with at least one linkage rod 28. The linkage rod 28 is slidably inserted into the positioning elongated hole 221 and the driving elongated hole 231. The driving member 23 slidingly drives the driving elongated hole 231 to push and push. The rod 28 slides in the positioning elongated hole 221, so that the linkage rod 28 slides and slides the first engaging member 21 to selectively engage or disengage from any of the first engaging portions, so that the operation is more convenient and quick. . Preferably, the driving elongated hole 231 is inclined in a direction away from a center line of the first support tube 41 along the direction of the second support tube 42 to the first support tube 41, when the driving member 23 faces away from the second support tube 42. When the direction is sliding, the driving elongated hole 231 pushes the linkage rod 28 to slide in the positioning elongated hole 221 to drive the first engaging member 21 out of engagement with the first engaging portion, when the driving member 23 approaches the second supporting portion. When the direction of the tube 42 slides, the driving elongated hole 231 pushes the linkage rod 28 to slide in the positioning elongated hole 221 to drive the first engaging member 21 to engage with the corresponding first engaging portion, but drives the elongated hole. The tilt direction of 231 is not limited to this. In this embodiment, the first elastic member 24 is constantly driven to move the driving member 23 toward the second supporting tube 42 to push the linking rod 28 to move the first engaging member 21 to move adjacent to the corresponding first engaging portion. The first engaging member 21 can be automatically reset and engaged with the corresponding first engaging portion. Specifically, in the embodiment, the first elastic member 24 is preferably a spring that is compressedly abutted between the first mounting seat 22 and the driving member 23 to achieve constant driving to drive the driving member 23 toward The direction of the second support tube 42 moves. Another limiting elongated hole 232 is formed on the driving member 23 along the sliding direction of the driving member 23. The first mounting seat 22 is provided with a positioning rod 29, and the positioning rod 29 is slidably inserted into the limiting elongated hole 232. Therefore, the driving member 23 is prevented from excessive sliding, and the structure is safer and more reliable.

Please refer to FIG. 4, FIG. 6 and FIG. 7. FIG. 6 is an enlarged schematic view showing the adjusting mechanism 100 of the first embodiment of the present invention and the supporting leg 40 at another length position in the portion of FIG. The first adjusting component 20 further includes a second mounting bracket 26 (as shown in FIGS. 1 to 4 and FIG. 6 ). The second mounting bracket 26 is disposed at one end of the first supporting tube 41 away from the second supporting tube 42 . In other embodiments, the second mounting seat 26 is correspondingly disposed on the second supporting tube 42 according to the case where the first engaging member 21 is movably disposed on the second supporting tube 42 , and details are not described herein again. Preferably, the second mounting seat 26 is sleeved outside the first support tube 41. The first operating member 25 is slidably disposed on the second mounting seat 26, and one sliding direction of the first operating member 25 is staggered in the sliding direction of the driving member 23. Preferably, the sliding direction of the first operating member 25 is perpendicular to In the sliding direction of the driving member 23, one end of the first operating member 25 away from the driving member 23 is formed with a first operating portion 251 exposed to the outside of the second mounting seat 26. The first operating member 25 is formed near one end of the driving member 23. The driving portion 252 has a receiving portion 233 formed at one end of the driving member 23 adjacent to the first operating member 25. The driving portion 252 is slidably engaged with the driven portion 233, and at least one of the two surfaces contacting the driving portion 252 and the driven portion 233 is formed with a slope. Preferably, both surfaces of the driving portion 252 and the driven portion 233 contacting each other may be respectively formed with the inclined surface structure, and the inclined surface structure faces away from the first supporting tube 41 in the direction of the second supporting tube 42 to the first supporting tube 41. The direction of the center line is inclined, so that the sliding contact abutment between the driving portion 252 and the driven portion 233 is smoother. The first operating portion 251 slides in the direction of the driving member 23 and drives the driving portion 252 to push the pushing portion 233 to actuate. The driven portion 233 drives the driving member 23 to drive the first engaging member 21 out of the card with the first engaging portion. Combined to make the operation simple and convenient.

Referring to FIG. 4 and FIG. 6 , the first adjusting component 20 further includes a second elastic member 27 . The second elastic member 27 abuts one of the first supporting tube 41 and the second mounting bracket 26 and the first one. The second elastic member 27 abuts between the second mounting seat 26 and the first operating member 25 in the present embodiment, but the invention is not limited thereto. The second elastic member 27 constantly drives the first operating member 25 to move away from the driving member 23, so that the first operating member 25 can be automatically reset, and the structure is simple and the operation is convenient and labor-saving. In this embodiment, the second elastic member 27 is preferably a spring that is compressedly abutted between the second mounting seat 26 and the first operating member 25 to achieve constant driving to move the first operating member 25 away from the driving member. Move in the direction of 23.

Referring to FIG. 1 to FIG. 5 , the first engaging portions are respectively formed in the engaging holes 421 of the second supporting tube 42 , and the first engaging members 21 are engaged with each other, and the structure thereof is simple and reasonable. . Preferably, in the embodiment, the first engaging member 21 is engaged with the engaging hole 421 at an end thereof in an inclined structure toward the second supporting tube 42 so that the first engaging member 21 is more easily inserted or It is separated from the engaging hole 421.

Referring to FIG. 4 to FIG. 7 , in the embodiment, the first mounting seat 22 is provided with two symmetrical positioning elongated holes 221 and two first symmetrical engaging members 21 are disposed. The driving member 23 is provided with two mutually elongated driving elongated holes 231. The two driving elongated holes 231 are inclined away from each other in the direction of the second supporting tube 42 to the first supporting tube 41, that is, two driving lengths. The shape holes 231 are respectively inclined in a direction away from the central axis of the first support tube 41 in the direction of the second support tube 42 to the first support tube 41, so that the two driving elongated holes 231 are formed in an "eight" shape, each A linkage rod 28 on a first engaging member 21 is slidably disposed in the corresponding positioning elongated hole 221 and the driving elongated hole 231, and correspondingly, a row of first cards are respectively disposed on opposite side walls of the second supporting tube 42. The first engaging member 21 and the first engaging portion are engaged with each other, and when the two first engaging members 21 are away from each other, the two first engaging members 21 are both engaged. Into the corresponding first engaging portion, when the two first engaging members 21 are close to each other, then the two first engaging portions 21 is detached from the first engaging portion of the corresponding engaging portion, so that the structure of connecting and positioning the first supporting tube 41 and the second supporting tube 42 is more firm and reliable, and also the driving member 23 and the first The structure of the connection and driving of the engaging member 21 is more reliable, but the invention is not limited thereto. Similarly, the second mounting seat 26 is provided with two mutually symmetrical first operating members 25, each of which is correspondingly abutted against the second elastic member 27, and correspondingly the driving member 23 is also provided with two mutually symmetric The driven portion 233, each of the driven portions 233 cooperates with the corresponding first operating member 25 to facilitate user operation.

Referring to FIG. 1 to FIG. 4 and FIG. 6 , in the embodiment, the second mounting seat 26 is further provided with an indicating component 10 for indicating whether the supporting leg 40 is correctly used. Specifically, the indicating component 10 includes An indicating block 11 and a third elastic member 12 are disposed. The indicating block 11 is movably disposed at one end of the second mounting seat 26 away from the first supporting tube 41. The second mounting seat 26 is open to the end of the first supporting tube 41. The hole 261, the indicating block 11 includes a first indicating portion 111, a second indicating portion 112 and an abutting convex portion 113 arranged in the direction of the first supporting tube 41 to the second mounting seat 26, and the sliding convex portion 113 slides. The grounding is placed in the through hole 261, and the abutting convex portion 113 is selectively hidden or protruded from the through hole 261. One side of the second mounting seat 26 is provided with an indication window 262 for exposing the first indicating portion 111 or the second indicating portion 112. When the resisting convex portion 113 protrudes out of the through hole 261, the indicating window 262 reveals the first indication. The portion 111, that is, the end of the second mounting seat 26 away from the first support tube 41 does not interfere with the floor for carrying the support leg 40, that is, the support leg 40 is in the wrong use position, and the base 52 is not provided. The role of the support, so the length of the support foot 40 needs to be adjusted. When the resisting protrusion 113 is hidden in the through hole 261, the indicating window 262 reveals the second indicating portion 112, that is, the end of the second mounting seat 26 away from the first supporting tube 41 has already reached the floor for carrying the supporting leg 40, so The base 52 can be provided with a supporting function, that is, the supporting leg 40 is located at the correct use position. This structural design provides a good indication reminder function, is safer and more convenient to use, and ensures that the supporting leg 40 can be used normally. The third elastic member 12 abuts between the second mounting seat 26 and the first supporting tube 41 and the indicating block 11 . Preferably, in the embodiment, the third elastic member 12 abuts the second mounting seat. 26 is between the indicator block 11, but the invention is not limited thereto. The third elastic member 12 constantly drives the indicating block 11 to move away from the first supporting tube 41 to drive the resisting protrusion 113 to protrude through the through hole 261, so that the second mounting seat 26 is detached from the floor for supporting the supporting foot 40. The third elastic member 12 drives the indicating block 11 to move away from the first supporting tube 41 to protrude the protruding protrusion 113 from the through hole 261, so that the first indicating portion 111 is exposed to the indicating window 262, and the use is further improved. Convenience. Preferably, the third elastic member 12 is a spring, and the spring is compressedly abutted between the second mounting seat 26 and the indicating block 11 to realize constant driving to move the indicating block 11 away from the first supporting tube 41. The abutting protrusion 113 protrudes through the through hole 261. In order to facilitate the user's observation and to make the indicating block 11 provide a more obvious indication, the first indicating portion 111 may preferably be a red color block, and the second indicating portion 112 may preferably be a green color block, of course, the first indicating portion. The color of the color block selected by the 111 and the second indicating portion 112 is not limited thereto, and can be flexibly selected according to actual use conditions.

Please refer to FIG. 1 to FIG. 7 for the detailed description of the working principle of the adjusting mechanism 100 of the present embodiment. When it is necessary to adjust the combined length of the first supporting tube 41 and the second supporting tube 42, firstly, press the first operating portion. 251, in order to overcome the elastic force of the second elastic member 27, the first operating member 25 is moved toward the direction of the driven portion 233, so that the driving portion 252 slidingly abuts against the corresponding driven portion 233, thereby driving the driving member 23 to overcome The elastic force of the first elastic member 24 slides in a direction away from the second support tube 42 and drives the elongated hole 231 through the driving member 23 to push the linkage rod 28 to slide in the positioning elongated hole 221 to drive the first card. The fitting 21 is disengaged from the engaged state of the first engaging portion, and the pressing of the first operating portion 251 is maintained. At the same time, the first support tube 41 is slid relative to the second support tube 42 to adjust the combined length of the first support tube 41 and the second support tube 42 to a desired length, and then the pressing of the first operation portion 251 is released. Under the elastic force of the second elastic member 27, the first operating member 25 is driven to automatically reset, and under the elastic force of the first elastic member 24, the driving member 23 is driven to slide toward the second supporting tube 42 to be reset. And the driving elongated hole 231 pushes the connecting rod 28 to slide in the positioning elongated hole 221 to drive the first engaging member 21 to automatically reset and engage with the corresponding first engaging portion, thereby completing the first The adjustment operation of the combined length of the support tube 41 and the second support tube 42. It is worth mentioning that when the support leg 40 is used, the support leg 40 is disposed in the direction of the vertical base 52 so that the support leg 40 can be in contact with the floor, and when the resisting projection 113 is pushed by the floor carrying the support leg 40, it is hidden. When the through hole 261 is opened, the indicator window 262 on the second mounting seat 26 reveals the second indicating portion 112, which indicates that the supporting leg 40 is in the normal use position, and the base 52 can be supported.

Referring to Figures 8 and 9, Figure 8 is a perspective view showing a combination of an adjustment mechanism 100' and a child safety seat 200' according to a second embodiment of the present invention. Figure 9 is a perspective view showing the combination of the adjustment mechanism 100' and the support leg 40' at one of the length positions in the second embodiment of the present invention. The child safety seat 200' of the present embodiment has substantially the same structure as the child safety seat 200 of the first embodiment, except that the support leg 40' includes the first support tube 41 and the second support tube 42. The third support tube 43 is extendable from the second support tube 42 . The third support tube 43 is mounted on the base 52 to mount the support leg 40 ′ to the base 52 . The adjustment mechanism 100 ′ of the embodiment is substantially identical in structure to the adjustment mechanism 100 of the first embodiment, except that the adjustment mechanism 100 ′ of the embodiment includes a second adjustment in addition to the first adjustment component 20 . The assembly 30 is disposed between the second support tube 42 and the third support tube 43 for limiting or allowing relative sliding between the third support tube 43 and the second support tube 42 to achieve adjustment. The combined length of the two support tubes 42 and the third support tube 43.

Referring to Figures 8 through 10, FIG. 10 is a perspective view showing the combination of the adjusting mechanism 100' and the supporting leg 40' at another length in the second embodiment of the present invention. In the present embodiment, the second support tube 42 is slidably disposed in the third support tube 43 in a direction parallel to the third support tube 43 to achieve relative expansion and contraction between the second support tube 42 and the third support tube 43. However, the present invention Not limited to this. Preferably, in the present embodiment, the second support tube 42 is slidably disposed inside the third support tube 43 to make the two structures more closely coupled, but the invention is not limited thereto.

Referring to Figures 8 through 12, Figure 11 is a cross-sectional view of the adjustment mechanism 100' and the support leg 40' at another length in accordance with a second embodiment of the present invention. Fig. 12 is an enlarged schematic view showing the adjusting mechanism 100' of the second embodiment of the present invention and the supporting leg 40' at the other length position in the portion of Fig. 11C. In this embodiment, the second adjusting component 30 includes a second engaging component 31 and a second operating component 33 connected to the second engaging component 31. The second operating component 33 and the second latching component 31 are movably Provided in one of the second support tube 42 and the third support tube 43, the other of the second support tube 42 and the third support tube 43 is provided with at least two second engaging portions (not shown in the figure) The specific number of the second engaging portions can be flexibly selected according to the actual use requirements. The second engaging portions are arranged along the second telescopic direction of the second supporting tube 42 and the third supporting tube 43. Preferably, two adjacent ones are adjacent. The distance between the second engaging portions is equal to make the use more convenient, but the invention is not limited thereto. Preferably, in the embodiment, the second engaging member 31 and the second operating member 33 are movably disposed on the third supporting tube 43 , and the second engaging portion is correspondingly disposed on the second supporting tube 42 , and the present invention does not This is limited to this. In other embodiments, the second engaging member 31 and the second operating member 33 are movably disposed on the second supporting tube 42 , and the second engaging portion is correspondingly disposed on the third supporting tube 43 . Let me repeat. The second engaging member 31 is selectively engaged with any of the second engaging portions, and the second operating member 33 drives the second engaging member 31 out of engagement with the second engaging portion. When the second engaging member 31 is engaged with any of the second engaging portions, the relative sliding between the second supporting tube 42 and the third supporting tube 43 is restricted, and when the second operating member 33 is operated to drive the second engaging portion When the piece 31 is disengaged from the engaged state of the second engaging portion, the second supporting tube 42 can be operated to slide relative to the third supporting tube 43 to connect the second supporting tube 42 and the third supporting tube 43. The combined length is adjusted to the required length, and the second engaging member 31 is engaged with the other corresponding second engaging portion to complete the adjustment of the combined length of the second supporting tube 42 and the third supporting tube 43. operating.

Referring to FIG. 10 to FIG. 12 , in the embodiment, the second adjusting component 30 further includes a third mounting seat 32 , and the third mounting seat 32 is disposed on the third supporting tube 43 , preferably in the present embodiment. In the example, the third mounting seat 32 is sleeved on the outside of the third supporting tube 43 to make the two structures more closely coupled, but the invention is not limited thereto. The second engaging member 31 is movably disposed on the third mounting seat 32. In detail, the second engaging member 31 is pivotally connected to the third mounting seat 32, and the second engaging member 31 is movably disposed on the third supporting member. The structure of the tube 43 makes the mounting structure of the second engaging member 31 simpler, but the invention is not limited thereto. In other embodiments, the third mounting seat 32 can be disposed on the second supporting tube 42 to realize the structure of the second engaging member 31 disposed on the second supporting tube 42 and will not be described herein. Specifically, in the embodiment, one end of the second engaging member 31 extends toward the second supporting tube 42 to extend a first engaging convex portion 311, and the first engaging convex portion 311 is selectively engaged with the first engaging convex portion 311. Any of the second engaging portions, thereby achieving engagement between the second engaging member 31 and the second engaging portion. A second operating member 33 is mounted on one end of the second engaging member 31 away from the first engaging convex portion 311. The pivotal position of the second engaging member 31 and the third mounting seat 32 is located at the first engaging convex portion 311 and Between the second operating members 33, the second engaging member 31 is driven to pivot by the second operating member 33, thereby driving the first engaging convex portion 311 to engage with or disengage from the second engaging portion. Preferably, in the embodiment, the second operating member 33 and the second engaging member 31 can be integrally formed, so that the structure is more compact and more secure. Of course, the second operating member 33 is engaged with the second engaging member 33. The specific connection structure of the member 31 is not limited thereto, and can be flexibly designed according to actual use requirements, and details are not described herein again. Preferably, in the embodiment, the second engaging member 31 is disposed with one end of the first engaging convex portion 311 being shielded in the third mounting seat 32, and the second operating member 33 is formed to be exposed to the third mounting seat. One of the external second operating portions (not shown in the drawings) is provided for convenient operation of the second operating member 33.

Referring to FIG. 11 and FIG. 12, in the embodiment, the second adjusting component 30 further includes a fourth elastic member (not shown), and one end of the fourth elastic member abuts against the third supporting tube 43 and One of the third mounting seats 32, the other end of the fourth elastic member abuts one of the second engaging member 31 and the second operating member 33, and the fourth elastic member constantly drives the second engaging member 31 The first engaging convex portion 311 is driven to move toward the corresponding second engaging portion. That is, the fourth elastic member drives the second engaging member 31 to move the first engaging convex portion 311 toward the second supporting tube 42 so that the second engaging member 31 can drive the first engaging convex portion 311. Automatically reset and engaged with the corresponding second engaging portion. Specifically, the fourth elastic member is a torsion spring, and the middle portion of the torsion spring is disposed on the third mounting seat 32. One end of the torsion spring abuts against the third supporting tube 43, and the other end of the torsion spring abuts The second operating member 33 drives the second engaging member 31 to automatically reset the first engaging convex portion 311 and engages with the corresponding second engaging portion, but the fourth elastic member is not limited thereto. Flexible choice according to actual needs. The second engaging portion can be respectively engaged with the engaging hole 421 of the second supporting tube 42 , and the first engaging convex portion 311 is engaged with each other, and the structure is simple and reasonable. Preferably, in the embodiment, the first engaging convex portion 311 is inclined toward the second supporting tube 42 so that the first engaging convex portion 311 can be more easily engaged or disengaged from the engaging hole 421. A second engaging member 31 and a fourth elastic member and a second operating member 33 corresponding to the second engaging member 31 are respectively disposed on opposite sides of the three mounting bases 32, and the two second engaging members 31 are respectively provided. A second yoke is disposed on the opposite side walls of the second support tube 42 , and the second engaging member 31 and the second engaging portion on the same side are engaged with each other. The structure for connecting and positioning the third support tube 43 and the second support tube 42 is more robust and reliable, but the invention is not limited thereto. Preferably, in the embodiment, the first engaging portion and the second engaging portion are respectively engaged with the engaging hole 421 of the second supporting tube 42 , and the first engaging convex portion 311 or the first engaging portion The second engaging member 31 and the first engaging member 21 share two rows of engaging holes 421, but the second engaging member 31 and the first engaging member 21 are engaged with each other. The engaging holes 421 of the same row but at different positions make the structure simpler and more compact, and the manufacturing processing steps are reduced, thereby reducing the manufacturing processing cost. The specific structural arrangement of the first engaging portion and the second engaging portion is not limited thereto, and can be flexibly designed according to actual use requirements.

The working principle of the adjusting mechanism 100 ′ of the embodiment is described in detail with reference to FIG. 8 to FIG. 12 , wherein the adjustment operation of adjusting the combined length of the first supporting tube 41 and the second supporting tube 42 through the first adjusting component 20 is The working principle of the first embodiment is the same, so it will not be described here. When it is necessary to adjust the combined length of the second support tube 42 and the third support tube 43, firstly, the second operating portion of the second operating member 33 is pressed to resist the elastic force of the fourth elastic member, and then the second engagement is driven. The member 31 pivots to drive the first engaging convex portion 311 out of engagement with the second engaging portion and maintain the pressing of the second operating portion. At the same time, the second support tube 42 is slid relative to the third support tube 43, so that the combined length of the second support tube 42 and the third support tube 43 is adjusted to a desired length, and then the pressing of the second operating portion is released. Under the elastic force of the fourth elastic member, the second operating member 33 is reset, and the second engaging member 31 is driven to pivot in the reverse direction, and the first engaging convex portion 311 is reset and locked to the other corresponding portion. The two engaging portions can complete the adjustment operation of the combined length of the second supporting tube 42 and the third supporting tube 43.

In addition, in this embodiment, according to actual use requirements, the overall length of the support leg 40 ′ can be adjusted by the first adjustment component 20 to adjust the combined length of the first support tube 41 and the second support tube 42 and through the second adjustment component. The manner of adjusting the combined length of the second support tube 42 and the third support tube 43 is adjusted in at least one manner to realize the length of the multi-segment adjustment support leg 40 ′, so that the manner of the adjustment operation is more diverse, and the user can Optionally, the length of the support leg 40' is adjusted, and the support leg 40' has the shortest length when contracted to the shortest to reduce the occupied space, and the support leg 40' has more different segments when adjusting the length. The length is available for the user to choose and also increases the safety of the child's ride.

The adjustment mechanism of the invention has a simple and reliable structure, thereby reducing production costs and improving safety of use. Since the child safety seat of the present invention has the adjustment mechanism of the present invention, the child safety seat of the present invention also has the ability to adjust the length of the support leg to the required length, the structure is simple and reliable, the adjustment operation is simpler and more convenient, and the reduction can be reduced. The advantages of production costs, but also improve the safety of children's ride. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧Indicating components
11‧‧‧Indicating block
12‧‧‧ Third elastic parts
20‧‧‧First adjustment component
21‧‧‧First card fittings
22‧‧‧First Mount
23‧‧‧ Drives
24‧‧‧First elastic parts
25‧‧‧First operating piece
26‧‧‧Second Mount
27‧‧‧Second elastic parts
28‧‧‧ linkage rod
29‧‧‧ Positioning rod
30‧‧‧Second adjustment component
31‧‧‧Second snap-on parts
32‧‧‧ Third Mount
33‧‧‧Second operating parts
40, 40'‧‧‧ support feet
41‧‧‧First support tube
42‧‧‧Second support tube
43‧‧‧ Third support tube
50‧‧‧Seat group
51‧‧‧Seat body
52‧‧‧Base
100, 100' ‧ ‧ adjustment agencies
111‧‧‧First Instruction Department
112‧‧‧Second Directions
113‧‧‧Resistance to the convex
200, 200'‧‧‧ child safety seat
221‧‧‧ Positioning the elongated hole
231‧‧‧Drive long hole
232‧‧‧Limited long hole
233‧‧‧Received Department
251‧‧‧First Operation Department
252‧‧‧ Drive Department
261‧‧‧through hole
262‧‧‧ indicating window
311‧‧‧First engagement projection
421‧‧‧Knitting holes

Fig. 1 is a perspective view showing the combination of an adjusting mechanism and a child safety seat according to a first embodiment of the present invention. Fig. 2 is a perspective view showing the combination of the adjusting mechanism of the first embodiment of the present invention and the supporting legs at a length position. Fig. 3 is a perspective view showing the combination of the adjusting mechanism of the first embodiment of the present invention and the supporting legs at another length position. Figure 4 is a cross-sectional view showing the adjustment mechanism of the first embodiment of the present invention and the support legs at another length position. Fig. 5 is an enlarged schematic view showing the adjusting mechanism of the first embodiment of the present invention and the supporting leg at another length position in the portion A of Fig. 4. Fig. 6 is an enlarged schematic view showing the adjusting mechanism of the first embodiment of the present invention and the supporting leg at another length position in the portion of Fig. 4B. Figure 7 is a perspective view showing the structure of the driving member of the adjusting mechanism of the first embodiment of the present invention. Figure 8 is a perspective view showing the combination of the adjusting mechanism and the child safety seat of the second embodiment of the present invention. Figure 9 is a perspective view showing the combination of the adjusting mechanism of the second embodiment of the present invention and the supporting legs at a length position. Figure 10 is a perspective view showing the combination of the adjusting mechanism of the second embodiment of the present invention and the supporting legs at another length position. Figure 11 is a cross-sectional view showing the adjustment mechanism of the second embodiment of the present invention and the support legs at another length position. Figure 12 is an enlarged schematic view showing the adjusting mechanism of the second embodiment of the present invention and the supporting leg at another length position in the portion of Figure 11C.

10‧‧‧Indicating components

11‧‧‧Indicating block

12‧‧‧ Third elastic parts

20‧‧‧First adjustment component

21‧‧‧First card fittings

22‧‧‧First Mount

23‧‧‧ Drives

24‧‧‧First elastic parts

25‧‧‧First operating piece

26‧‧‧Second Mount

27‧‧‧Second elastic parts

28‧‧‧ linkage rod

29‧‧‧ Positioning rod

30‧‧‧Second adjustment component

31‧‧‧Second snap-on parts

32‧‧‧ Third Mount

33‧‧‧Second operating parts

41‧‧‧First support tube

42‧‧‧Second support tube

43‧‧‧ Third support tube

100’‧‧‧Adjustment agency

111‧‧‧First Instruction Department

112‧‧‧Second Directions

113‧‧‧Resistance to the convex

221‧‧‧ Positioning the elongated hole

233‧‧‧Received Department

251‧‧‧First Operation Department

252‧‧‧ Drive Department

261‧‧‧through hole

311‧‧‧First engagement projection

421‧‧‧Knitting holes

Claims (27)

An adjusting mechanism is mounted on a supporting leg for adjusting the length of the supporting leg. The supporting leg comprises a first supporting tube and a second supporting tube which are relatively telescopic. The adjusting mechanism comprises: a first adjusting component, The first engaging member is disposed at one end of one of the first supporting tube and the second supporting tube; at least two first engaging portions are disposed on the first supporting tube And the other of the second support tubes, the at least two first engaging portions are arranged along one of the first support tube and the second support tube in a direction of relative expansion and contraction, and the first engaging member is selectively engaged Any one of the at least two first engaging portions; a driving member movably disposed on the first supporting tube or the second supporting tube having the first engaging member; and a first operating member The movable member is disposed at the other end of the first support tube or the second support tube, and the driving member is disposed between the first engaging member and the first operating member. The first operating member drives the driving member to drive the first engaging member Corresponding to engagement of the first portion. The adjustment mechanism of claim 1, wherein the first adjustment component further comprises a first mounting seat disposed on the first support tube or the second support tube having the first engaging member, and the first A snap member is movably disposed on the first mount. The adjustment mechanism of claim 2, wherein the first mounting seat is disposed at an end of the first supporting tube adjacent to the second supporting tube, and the first engaging member is staggered along the first supporting tube and the first The two supporting tubes are slidably disposed on the first mounting seat in one direction of the direction of the telescopic movement, and the at least two first engaging portions are disposed on the second supporting tube. The adjusting mechanism of claim 3, wherein the first adjusting component further comprises a first elastic member, one end of which abuts at least one of the first supporting tube and the first mounting seat, the first elastic member The other end of the first elastic member drives the first engaging member toward the corresponding first engaging portion. The adjusting mechanism of claim 4, wherein the driving member is slidably disposed in the first supporting tube in a direction staggered in a sliding direction of one of the first engaging members, and the driving member drives the first engaging The member is selectively engaged with or disengaged from any of the at least two first engaging portions. The adjustment mechanism of claim 5, wherein the first engaging member is slidably disposed in the first mounting seat in a direction perpendicular to the direction in which the first supporting tube and the second supporting tube are relatively telescopic. The driving member is slidably disposed in the first supporting tube in a direction parallel to the direction in which the first supporting tube and the second supporting tube are relatively stretched. The adjusting mechanism of claim 6, wherein at least one positioning elongated hole is formed on the first mounting seat along the sliding direction of the first engaging member, and at least one driving elongated hole is along the driving member. a sliding direction is formed on the driving member, and the first engaging member is provided with at least one linking rod, and the connecting rod is slidably inserted into the positioning elongated hole and the driving elongated hole, and the driving member drives The driving elongate hole pushes the linkage rod to slide along the positioning elongate hole, and the linkage rod drives the first engaging member to selectively engage or disengage from any of the at least two first engaging portions Engage. The adjusting mechanism of claim 7, wherein the driving elongated hole is inclined in a direction away from a center line of the first supporting tube in a direction of the second supporting tube to the first supporting tube, the first elastic member The constant drive moves the drive member toward the second support tube. The adjusting mechanism of claim 6, wherein a limiting elongated hole is formed on the driving member along the sliding direction of the driving member, the first mounting seat is provided with a positioning rod, and the positioning rod is slidably worn. Placed in the limit elongated hole. The adjustment mechanism of claim 2, wherein the first adjustment component further comprises a second mounting seat, the second mounting seat being disposed on the first support tube or the second support tube having the first engaging member The first mounting seat is located at one end of the first supporting tube or the second supporting tube having the first engaging member, and the second mounting seat is located at the first supporting tube having the first engaging member or The other end of the second support tube, and the first operating member is movably disposed on the second mount. The adjustment mechanism of claim 8, wherein the first adjustment component further comprises a second mounting seat, the second mounting seat is disposed at the one end of the first supporting tube away from the second supporting tube, and the first operation The piece is slidably disposed on the second mount. The adjusting mechanism of claim 11, wherein a sliding direction of one of the first operating members is staggered in the sliding direction of the driving member, and the first operating member is formed away from the one end of the driving member and exposed to the second mounting seat. a first operating portion, the first operating member is formed with a driving portion near one end of the driving member, and the driving member is formed with a receiving portion near one end of the first operating member, and the driving portion slidably contacts the driven portion At least one of the two surfaces contacting the driving portion and the driven portion is formed with a sloped structure, and the first operating portion drives the driving when the first operating portion is pushed and pushed toward the driving member. The driven portion pushes the driven portion such that the driven portion drives the driving member to disengage the first engaging member from the corresponding first engaging portion. The adjustment mechanism of claim 12, wherein the two surfaces of the driving portion and the driven portion are respectively formed with the inclined surface structure, and the inclined surface structure is along the direction of the second supporting tube to the first supporting tube It is inclined away from the direction of the center line of the first support tube. The adjusting mechanism of claim 12, wherein the first adjusting component further comprises a second elastic member, wherein the second elastic member abuts one of the first supporting tube and the second mounting seat and the first Between an operating member, and the second elastic member constantly drives the first operating member to move away from the driving member. The adjusting mechanism of claim 1, wherein the at least two first engaging portions are respectively formed in an engaging hole of the second supporting tube, and are engaged with the first engaging member in cooperation with each other. The adjustment mechanism of claim 11, wherein the second mounting seat is further provided with an indicating component, the indicating component includes an indicating block and a third elastic component, and the indicating block is movably disposed on the second mounting seat away from the One end of the first support tube, the second mounting seat defines a through hole away from the end of the first support tube, and the indicator block includes a first one of the first support tube to the second mounting seat. a first indicating portion, a second indicating portion and an abutting convex portion, the engaging convex portion slidingly penetrating the through hole, the resisting convex portion selectively hiding or protruding from the through hole, the second mounting One of the side portions of the seat is configured to expose the first indicating portion or the indicating portion of the second indicating portion, and the third elastic member abuts one of the second mounting seat and the first supporting tube Between the indicator blocks, the third elastic member constantly drives the indicator block to move away from the first support tube to drive the abutting protrusion to protrude from the through hole, wherein the through protrusion protrudes from the through hole When the indication window reveals the first indication portion, and when When the conflict projecting portion in the through hole hidden, the second indication indicating that the window exposed portion. The adjustment mechanism of claim 16, wherein when the indication window reveals the first indication portion, the support foot is in an incorrect use position, and when the indication window reveals the second indication portion, the support foot is located correctly The location of use. The adjustment mechanism of claim 1, wherein the support leg further comprises a third support tube that is telescopically extendable relative to the second support tube, the adjustment mechanism further comprising a second adjustment component including a second engagement And a second operating member connected to the second engaging member, the second operating member and the second engaging member are movably disposed on the second supporting tube and the third supporting member, the first The other of the two supporting tubes and the third supporting tube are provided with at least two second engaging portions, and the at least two second engaging portions are opposite to one another in the direction of the second supporting tube and the third supporting tube Arranging, the second engaging member is selectively engaged with any one of the at least two second engaging portions, and the second operating member drives the second engaging member to be disengaged from the corresponding second engaging portion unit. The adjusting mechanism of claim 18, wherein the second adjusting component further comprises a third mounting seat, the third mounting seat being disposed on the second supporting tube or the third supporting tube having the second engaging member And the second engaging member is movably disposed on the third mounting seat. The adjustment mechanism of claim 19, wherein the third mounting seat is disposed on the third supporting tube, the second engaging member is pivotally connected to the third mounting seat, and the at least two second engaging portions are disposed on The second support tube. The adjusting mechanism of claim 20, wherein one end of the second engaging member extends toward the second supporting tube to extend a first engaging convex portion, and the first engaging convex portion is selectively engaged with Any one of the at least two second engaging portions. The adjustment mechanism of claim 21, wherein the second operating member is mounted at one end of the second engaging member away from the first engaging convex portion, and the second engaging member and the third mounting seat are The pivoting position is between the first engaging protrusion and the second operating member. The adjusting mechanism of claim 21, wherein the second adjusting component further comprises a fourth elastic member, one end of the fourth elastic member abutting one of the third supporting tube and the third mounting seat, The other end of the fourth elastic member abuts one of the second engaging member and the second operating member, and the fourth elastic member drives the second engaging member to drive the first engaging convex portion. Moving toward the corresponding second engaging portion. The adjustment mechanism of claim 23, wherein the fourth elastic member is a torsion spring, the intermediate portion of the torsion spring is disposed on the third mounting seat, and one end of the torsion spring abuts the third support tube, and The other end of the torsion spring abuts against the second operating member. The adjustment mechanism of claim 21, wherein the at least two second engaging portions are respectively formed in an engaging hole of the second supporting tube, and the card is engaged with the first engaging convex portion. Hehe. The adjusting mechanism of claim 21, wherein the at least two first engaging portions and the at least two second engaging portions are respectively formed in an engaging hole of the second supporting tube, the engaging hole and the engaging hole The first engaging projection or the first engaging member is engaged with each other. A child safety seat comprising a seat set and a support leg for supporting the seat set, the support leg being mounted to the seat set, the child safety seat further comprising as claimed in claims 1 to 26 The adjustment mechanism of any of the above, mounted to the support leg to adjust the length of the support leg.