GB2530375A

GB2530375A - Adjusting Mechanism And Child Safety Seat Therewith

Info

Publication number: GB2530375A
Application number: GB1512099.1A
Authority: GB
Inventors: Xiao-Long Mo
Original assignee: BP Childrens Products HK Co Ltd
Current assignee: BP Childrens Products HK Co Ltd
Priority date: 2014-07-11
Filing date: 2015-07-10
Publication date: 2016-03-23
Anticipated expiration: 2035-07-10
Also published as: GB2530375B; DE102015212769B4; GB201512099D0; DE102015212769A1; TW201601951A; CN105329123B; TWI574863B; CN105329123A

Abstract

An adjusting mechanism for adjusting the length of a telescopic supporting leg 100 includes an adjusting assembly comprising engaging member 21, engaging portions 421, a driving member 23 and an operating member 25. The engaging member 21 and operating member 23 are at opposite ends of a supporting pipe 41 which is telescopically adjustable relative to another pipe 42. The other pipe 42 has engaging portions 421 formed as holes in its side walls to allow discreet staged longitudinal lengthening or shortening of the support leg 100. The operating member 25 acts as a handle to operate adjustment at a remote end of the pipe 41. The driving member pushes a seat against a resilient spring 24 to urge engaging member 23 laterally inward as locating pins 28 are guided along oblique driving slots 231 to release the adjustment mechanism. Buttons 251 of the operating member 25 have oblique slanted faces 252 which urge cooperating oblique faces 233 of the driving member 23 to release the engaging member 21. The supporting leg can be used as a child car safety seat support leg (fig 1). A second adjusting mechanism (30, fig 11) can be provided with pivoting engaging members 311 to engage with the engaging portions 421.

Description

ADJUSTING MECHANISM AND CHILD SAFETY SEAT THEREWIH

Background of the Invention

1. Field of the Invention

The present invention relates to a carrier, and more particularly, to an adjusting mechanism and a child safety seat therewith.

2. Description of the Prior Art

With deveiopment of the society, the economy, and the technology, there are more and more consumer products which facilitate people's daily life, such as child safety seats.

Since child safety seats are not only comfortable to sit but also ensure children's safety, the child safety seats become more and more popular.

It is known that in order to install a child safety seat on a car seat firmly, a supporting leg is required to be disposed on a bottom of the child safety seat to support the child safety seat for facilitating stable installation of the child safety seat. However, a child safety seat is often supported by a conventional supporting leg with a non-adjustable length in the current utilization, such that when the child safety seat is to be fixed on different cars with different sizes, the conventional supporting leg of the child safety seat may be too long or too short to firmly support the child safety seat, which brings a safety concern of the child safety seat, and even hurts a child sitting on the child safety seat.

Furthermore, in order to adapt a child safety seat for different cars with different sizes, there is another conventional adjustable supporting leg in the market. However, the conventional adjustable supporting leg has complicated structure and high manufacturing cost. Besides, it is not easy to operate the adjustable supporting leg, and structure of the adjustable is not reliable, which also brings a safety concern of the child safety seat.

Therefore, it is an urgent need to design an adjusting mechanism and a child safety seat therewith to solve the aforementioned problems.

Summary of the Invention

The present invention aims at providing an adjusting mechanism and a child safety seat therewith, which are capable of adjusting a length of a supporting leg as reguired and with simple and reliable structure and easy operation.

According to the claimed invention, an adjusting mechanism installed on a supporting leg for adjusting a length of the supporting leg includes a first supporting pipe and a second supporting pipe retractable relative to each other.

The adjusting mechanism includes a first adjusting assembly.

The first adjusting assembly includes a first engaging member, at least two first engaging portions, a driving menber, and a first operating member. The first engaging member is movably disposed on an end of one of the first supporting pipe and the second supporting pipe. The at least two first engaging portions are disposed on the other one of the first supporting pipe and the second supporting pipe. The at least two first engaging portions are arranged along a telescopic direction of the first supporting pipe relative to the second supporting pipe, and the first engaging member selectively engages with one of the at least two first engaging portions. The driving member is movably disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed. The first operating member is movably disposed on the other end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed.

The driving member is linked between the first engaging member and the first operating member, and the first operating member drives the driving member to drive the first engaging member to disengage from the corresponding first engaging portion.

Preferably, the first adjusting assembly further includes a first installing seat disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed, and the first engaging member is movably disposed on the first installing seat.

Preferably, the first installing seat is disposed at an end of the first supporting pipe close to the second supporting pipe. The first engaging member is disposed on the first installing seat along a direction intersecting with the telescopic direction of the first supporting pipe relative to the second supporting pipe, and the at least two first engaging portions are disposed on the second supporting pipe.

Preferably, the first adjusting assembly further includes a first resilient member. An end of the first resilient member abuts against at least one of the first supporting pipe and the first installing seat. The other end of the first resilient member abuts against the driving member, and the first resilient member biases the driving member to drive the first engaging member to move toward the corresponding first engaging portion.

Preferably, the driving member is slidably disposed on the first supporting pipe along a direction intersecting with a sliding direction of the first engaging member, and the driving member drives the first engaging member to selectively engage with or disengage from one of the at least two first engaging portions.

Preferably, the first engaging member is slidably disposed on the first installing seat along a direction perpendicular to the telescopic direction of the first snpporting pipe relative to the second snpporting pipe, and the driving member is slidably disposed on the first snpporting pipe along a direction parallel to the telescopic direction of the first supporting pipe relative to the second supporting pipe.

Preferably, at least one positioning slot is formed on the first installing seat and disposed along the sliding direction of the first engaging member. At least one driving slot is formed on the driving member and disposed along a direction inclined to a sliding direction of the driving member. At least one linking rod is disposed on the first engaging member, the at least one linking rod slidably passes through the at least one positioning slot and the at least one driving slot, and the at least one linking rod drives the first engaging member to selectively engage with or disengage from one of the at least two first engaging portions.

Preferably, the at least one driving slot is inclined along a direction from the second supporting pipe to the first supporting pipe and away from a centerline of the first supporting pipe, and the first resilient member biases the driving member to move along a direction close to the second supporting pipe.

Preferably, a restraining slot is further formed on the driving member and disposed along the sliding direction of the driving member. A positioning rod is disposed on the first installing seat, and the positioning rod slidably passes through the restraining slot.

Preferably, the first adjusting assembly further includes a seoond installing seat. The second installing seat is disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed. The first installing seat is located at an end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed. The second installing seat is located at the other end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed, and the first operating member is movably disposed on the second installing seat.

Preferably, the first adjusting assembly further includes a second installing seat. The second installing seat is disposed on an end of the first supporting pipe away from the second supporting pipe, and the first operating member is slidably disposed on the second installing seat.

Preferably, a sliding direction of the first operating member is intersecting with the sliding direction of the driving member. A first operating portion is formed on an end of the first operating member away from the driving member and exposed out of the second installing seat. A driving portion is formed on an end of the first operating member close to the driving member. A driven portion is formed on an end of the driving member close to the first operating member.

The driving portion slidably abuts against the driven portion.

An inclined structure is formed on at least one of two contacting surfaces of the driving portion and the driven portion, and when the first operating portion is pushed to slide along a direction close to the driving member, the first operating portion drives the driving portion to push the driven portion, such that the driven portion drives the driving member to drive the first engaging member to disemgage from the correspomding first engaging portion.

Preferably, the inclined structure is formed on each of the two contacting surfaces of the driving portion and the driven portion, and the inclined structure is inciined along a directiom from the second supportimg pipe to the first supporting pipe and away from the centerline of the first supporting pipe.

Preferably, the first adjusting assembly further includes a second resilient member. The second resilient member abuts betweem the first operating member and one of the first supporting pipe amd the second installing seat, and the second resilient member biases the first operating member to move away from the drivimg member.

Preferably, the at least two first engagimg portioms are engagimg holes formed on the second supporting pipe, and the first emgaging member engages with one of the engaging holes.

Preferably, an indicating component is further disposed on the second installing seat. The indicating component includes an indicating block and a third resilient member.

The indicating block is movably disposed on an end of the second installing seat away from the first supporting pipe. A through hole is formed on the end of the second installing seat away from the first supporting pipe. The indicating block includes a first indicating portion, a second indicating portion, and a contacting protrusion arranged along a direction from the first supporting pipe to the second supporting pipe sequentially. The contacting protrusion is selectively received in or protrudes from the through hole. An indicating window is formed on a side of the second installing seat for revealing the first indicating portion or the second indicating portion. The indicating window reveals the first indicating portion when the contacting protrusion protrudes from the through hole. The indicating window reveals the second indicating portion when the contacting protrusion is received in the through hole. The third resilient member abuts between the indicating block and one o the second installing seat and the first supporting pipe, and the third resilient biases the indicating block to move away from the first supporting pipe, so as to drive the contacting protrusion to protrude from the through hole.

Preferably, the sllpporting leg is located at an erroneous position when the indicating window reveals the first indicating portion, and the supporting leg is located at a correct position when the indicating window reveals the second indicating portion.

Preferably, the supporting leg further includes a third supporting pipe retractable relative to the second supporting pipe. The adjusting mechanism further includes a second adjusting assembly. The second adjusting assembly includes a second engaging member and a second operating member connected with the second engaging member. The second operating member and the second engaging member are movably disposed on one of the second supporting pipe and the third supporting pipe. At least two second engaging portions are formed on the other one of the second supporting pipe and the third supporting pipe and arranged along a telescopic direction of the second supporcing pipe relative to the third supporting pipe. The second engaging member selectively engages with one of the at least two second engaging portions, and the second operating member drives the second engaging member to disengage from the corresponding second engaging portion.

Preferably, the seoond adjusting assembly further includes a third installing seat. The third installing seat is disposed on the second supporting pipe or the third supporting pipe where the second engaging member is disposed, and the second engaging member is movably disposed on the third installing seat.

Preferably, the third installing seat is disposed on the third supporting pipe. The second engaging member is pivoted to the third installing seat, and the at least two second engaging portions are disposed on the second supporting pipe.

Preferably, a first engaging protrusion protrudes from an end of the second engaging member along a direction close to the second supporting pipe, and the first engaging protrusion selectively engages with one of the at least two second engaging portions.

Preferably, the second operating member is installed at an end of the second engaging member away from the first engaging protrusion, and a pivoting position of the second engaging member and the third installing seat is located between the first engaging protrusion and the second operating member.

Preferably, the second adjusting assembly further includes a fourth resilient member. An end of the fourth resilient member abuts against one of the third supporting pipe and the third installing seat. The other end of the fourth

S

resilient member abuts against one of the second engaging member and the second operating member, and the fourth resilient member biases the second engaging member to drive the first engaging protrusion to move close to the corresponding second engaging portion.

Preferably, the fourth resilient member is a torsional spring. A middle portion of the torsional spring is disposed on the third installing seat. An end of the torsional spring abuts against the third supporting pipe, and the other end of the torsional spring abuts against the second operating member.

Preferably, each of the at least two second engaging portions is an engaging hole formed on the second supporting pipe, and the first engaging protrusion engages with one of the engaging holes.

Preferably, each of the at least two first engaging portions and the at least two second engaging portions is an engaging hole formed on the second supporting pipe, and the first engaging protrusion or the first engaging member engages with one of the engaging holes.

According to the claimed invention, a child safety seat is disclosed. The child safety seat includes a seat assembly and a supporting leg for supporting the seat assembly. The child safety seat further includes an adjusting mechanism installed on the supporting leg for adjusting a length of the supporting leg. The supporting leg includes a first supporting pipe and a second supporting pipe retractable relative to each other. The adjusting mechanism includes a first adjusting assembly. The first adjusting assembly includes a first engaging member, at least two first engaging portions, a driving member, and a first operating member. The first engaging member is movably disposed on an end of one of the first supporting pipe and the second supporting pipe. The at least two first engaging portions are disposed on the other one of the first supporting pipe and the second supporting pipe. The at least two first engaging portions are arranged along a telescopic direction of the first supporting pipe relative to the second supporting pipe, and the first engaging member selectively engages with one of the at least two first engaging portions. The driving member is movably disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed. The first operating member is movably disposed on the other end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed. The driving member is linked between the first engaging member and the first operating member, and the first operating menber drives the driving member to drive the first engaging member to disengage from the corresponding first engaging portion.

In summary, the second supporting pipe is restrained from retracting relative to the first supporting pipe when the first engaging member engages one of the at least two first engaging portions, and when the first engaging member disengages from the corresponding first engaging pocion, the second supporting pipe is released to retract relative to the first supporting pipe, so as to adjust a length of assembly the first supporting pipe and the second supporting pipe, ± a length of the supporting leg as required, in the present invention. Afterwards, the first engaging member is operated to engage with another first engaging portion, which makes operation of the adjustment easier and brings convenience in use. Since the child safety seat of the present invention includes the adjusting mechanism of the present invention, the length of the supporting leg of the child safety seat can be adjusted as required, which has advantages of simple and reliable structure, easy operation, and low manufacturing costs, and improves safety of the child safety seat when a child sits on the child safety seat.

Brief Description of the Drawings

FIG. 1 is a perspective diagram of assembly of an adjusting mechanism and a child safety seat according to a first embodiment of the present invention.

FIG. 2 is a perspective diagram of the assembly of the adjusting mechanism and a supporting leg located a first position according to the first embodiment of the present invention.

FIG. 3 is a perspective diagram of the assembly of the adjusting mechanism and the supporting leg located a second position according to the first embodiment of the present invention.

FIG. 4 is a sectional diagram of the assembly of the adjusting mechanism and the supporting leg shown in FIG. 3 according to the first embodiment of the present invention.

FIG. 5 is an enlarged diagram of an A portion of the assembly of the adjusting mechanism and the supporting leg shown in FIG. 4 according to the first embodiment of the present invention.

FIG. 6 is anenlargeddiagramof aBportionoftheassembly of the adjusting mechanism and the supporting leg shown in FIG. 4 according to the first embodiment of the present invention.

FIG. 7 is a perspective diagram of a driving member of the adjusting mechanism according to the first embodiment of the present invention.

FIG. 8 is a perspective diagram of assembly of an adjusting mechanism and a child safety seat according to a second embodiment of the present invention.

FIG. 9 is a perspective diagram of the assembly of the adjusting mechanism and the supporting leg located at a third position according to the second embodiment cf the present invention.

FIG. 10 is a perspective diagram of the assembly of the adjusting mechanism and the supporting leg located at a fourth position according to the second embodiment of the present invention.

FIG. 11 is a sectional diagram of the assembly of the adjusting mechanism and the supporting leg located at the fourth position shown in FIG. 10 according to the second embodiment of the present invention.

FIG. 12 is an enlarged diagram of a C portion of the assembly of the adjusting mechanism and the supporting leg located at the fourth position shown in FIG. 11 according to the second embodiment of the present invention.

Detailed Description

Please refer to FIG. 1. FIG. 1 is a perspective diagram of assembly of an adjusting 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 assembly and a supporting leg 40 for supporting the seat assembly 50. Specifically, in this embodiment, the seat assembly 50 includes a seat body 51 and a base 52. The seat body 51 is disposed on the base 52. An upper end of the supporting leg is installed on the base 52. When it is desired to use the supporting leg 40, the supporting leg 40 is disposed along a vertical direction for providing a support effect. However, it is not limited to this embodiment. In this embodinent, the adjusting mechanism 100 is installed on the supporting leg for adjusting a length of the supporting leg 40.

Please refer to FIG. 2 to FIG. 4. FIG. 2 is a perspective diagram of the assembly of the adjusting mechanism 100 and the supporting leg 40 located a first position according to the first embodiment of the present invention. FIG. 3 is a perspective diagram of the assembly of the adjusting mechanism and the supporting leg 40 located a second position according to the first errbodiment of the present invention.

FIG. 4 is a sectional diagram of the assembly of the adjusting mechanism 100 and the supporting leg 40 shown in FIG. 3 according to the first embodiment of the present invention.

In this embodiment, the supporting leg 40 includes a first supporting pipe 41 and a second supporting pipe 42 retractable relative to each other. Ai end of the second supporting pipe 42 away from the first supporting pipe 41 is installed on the base 52. Precisely, the first supporting pipe 41 is slidably disposed on the second supporting pipe 42 along a direction parallel to the second supporting pipe 42, such that the first supporting pipe 41 is retractable relative to the second supporting pipe 42, but it is not limited thereto. Preferably, in this embodiment, the first supporting pipe 41 is slidably disposed inside the second supporting pipe 42, which makes structure of the first supporting pipe 41 and the second supporting pipe 42 more compact. However, it is not limited to this embodiment.

Please refer to FIG. 5. FIG. S is an enlarged diagram of an A portion of the assembly of the adjusting mechanism 100 and the supporting leg 40 shown in FIG. 4 according to the first embodiment of the present invention. In this embodiment, the adjusting mechanism 100 includes a first adjusting assembly 20. The first adjusting assembly 20 includes a first engaging member 21, at least two first engaging portions, a driving member 23, and a first operating member 25. She first engaging member 21 is movably disposed on an end of one of the first supporting pipe 41 and the second supporting pipe 42. The first operating member 25 is movably disposed on the other end of the first supporting pipe 41 or the second supporting pipe 42 where the first engaging member 21 is disposed. The driving member 23 is movably disposed on the first supporting pipe 41 or the second supporting pipe 42 where the first engaging member 21 is disposed, and is linked between the first engaging member 21 and the first operating member 25.

The first engaging portions are disposed on the other one of the first supporting pipe 41 and the second supporting pipe 42. The number of the first engaging portions depends on practical demands, and it is not limited to this embodiment.

The first engaging portions are arranged along a telescopic direction of the first supporting pipe 41 relative to the second supporting pipe 42. Preferably, in this embodiment, the adjacent two first engaging portions can be evenly spaced, which brings convenience in use. However, it is not limited to this embodiment. Preferably, in this embodiment, the first engaging member 21 is movably disposed on an end of the first supporting pipe 41. The first operating member 25 is movably disposed on the other end of the first supporting pipe 41.

The driving member 23 is movably disposed on the first supporting pipe 41. The first engaging portions are disposed on the second supporting pipe 42 correspondingly. However, it is not limited to this embodiment. In other embodiment, the first engaging member 21, the driving member 23, and the first operating member 25 also can be disposed on the second supporting pipe 42, and the first engaging portions are disposed on the first supporting pipe 41 correspondingly. The first engaging member 21 selectively engages with one of the first engaging portions. The first operating member 25 drives the driving member 23 to drive the first engaging member 21 to disengage from the corresponding first engaging portion, such that structure of the adjusting mechanism 1CC' of this embodiment is simple and reliable, which reduces manufacturing costs and improves safety in use. When The first engaging member 21 engages with one of the first engaging portions, the first supporting pipe 41 is restrained from retracting movement relative to the second supporting pipe 42. When the first operating member 25 drives the driving member 23 to drive the first engaging member 21 to disengage from the corresponding first engaging portion, the first supporting pipe 41 is released for retraction relative to the second supporting pipe 42, so as to adjust the length of the supporting leg 40 as reguired. Afterwards, the first engaging member 21 is operated to engage with another corresponding first engaging portion, so as to complete adjustment of the length of the supporting leg 40, which makes operation of the adjustment easier and brings convenience in use.

Please refer to FIG. 4, FIG. 5, and FIG. 7. FIG. 7 is a perspective diagram of the driving member 23 of the adjusting mechanism 100 according to the first embodiment of the present invention. The first adjusting assembly 20 further includes a first installing seat 22. The first installing seat 22 is disposed at the first supporting pipe 41. Preferably, in this embodiment, the first installing seat 22 is disposed at an end of the first supporting pipe 41 close to the second supporting pipe 42. In other embodiment, the first installing seat 22 also can be disposed at the second supporting pipe 42 according to a situation that the first engaging member 21 is movably disposed at the second supporting pipe 42.

Preferably, in this embodiment, the first installing seat 22 is disposed inside the first supporting pipe 41 for reducing an occupied space. However, it is not limited this embodiment.

The first engaging member 21 is movably disposed on the first installing seat 22. Precisely, the first engaging member 21 is slidably disposed on the first installing seat 22 along a direction intersecting with the telescopic direction of the first snpporting pipe 41 relative to the second supporting pipe 42, such that the first engaging member 21 restrains the first supporting pipe 41 from retracting relative to the second supporting pipe 42. However, it is not limited thereto.

Preferably, in this embodiment, the first adjusting assembly 20 further includes a first resilient member 24. An end of the first resilient member 24 abuts against at least one of the first supporting pipe 41 and the first installing seat 22. The other end of the first resilient member 24 abuts against the driving member 23. Preferably, in this embodiment, the first resilient member 24 abuts between the first installing seat 22 and the driving member 23. However, it is not limited to this embodiment. The first resilient member 24 biases the driving member 23 to drive the first engaging member 21 to move toward the corresponding first engaging portion, such that the first engaging member 21 can recover to engage with the corresponding first engaging portion, which makes the operation easier. Specifically, in this embodiment, the driving member 23 is slidably disposed on at least one of the first supporting pipe 41 and the first installing seat 22 along a direction intersecting with a sliding direction of the first engaging member 21. Preferably, in this embodiment, the driving member 23 is slidably disposed inside the first supporting pipe 41 for reducing an occupied space.

However, it is not limited to this embodiment. The driving member 23 slidably drives the first engaging member 21 to selectively engage with or disengage from one of the first engaging portions. More specifically, the first engaging member 21 is slidably disposed on the first installing seat 22 preferably along a direction perpendicular to the telescopic direction of the first supporting pipe 41 relative to the second supporting pipe 42, such that the first engaging member 21 stops the first supporting pipe 41 from retracting relative to the second supporting pipe 42. However, it is not limited to thereto. The driving member 23 is slidably disposed on the first supporting pipe 41 preferably along a direction parallel to the telescopic direction of the first supporting pipe 41 relative to the second supporting pipe 42. However, it is not limited to thereto.

More specifically, at least one positioning slot 221 is formed on the first installing seat 22 along the sliding direction of the first engaging member 21. At least one driving slot 231 is formed on the driving member 23 and inclined along a sliding direction of the driving member 23. At least one linking rod 28 is disposed on the first engaging member 21.

The linking rod 28 slidably passes through the positioning slot 221 and the driving slot 231. The driving member 23 slidably drives the driving slot 231 to push the linking rod 28 to slide within the positioning slot 221, such that the linking rod 28 slidably drives the first engaging member 21 to selectively engage with or disengage from one of the first engaging portions, which makes the operation easier.

Preferably, in this embodiment, the driving slot 231 is inclined along a direction from the second supporting pipe 42 to the first supporting pipe 41 and away from a centerline of the first supporting pipe 41. when the driving member 23 slides away from the second supporting pipe 42, the driving slot 231 pushes the linking rod 28 to slide within the positioning slot 221, so as to drive the first engaging member 21 to disengage from the corresponding first engaging potion.

When the driving member 23 slides toward the second supporting pipe 42, the driving slot 231 push the linking rod 28 to slide within the positioning slot 221, so as to drive the first engaging member 21 to engage with the corresponding first engaging portion. However, an inciined direction of the driving slot 231 is not limited to this embodiment. In this embodiment, the first resilient member 24 biases the driving member 23 to move toward the second supporting pipe 42, so as to push the linking rod 28 to drive the first engaging member 21 to move toward the corresponding first engaging portion.

Specifically, in this embodiment, the first resilient member 24 is preferably a spring. The spring is compressed and abuts between the first installing seat 22 and the driving member 23 for biasing the driving member 23 to move toward the second supporting pipe 42. Furthermore, a restraining slot 232 is formed on the driving member 23 along the sliding direction of the driving member 23. A positioning rod 29 is disposed on the first instailing seat 22 and slidabiy passes through the restraining slot 232, which prevents the driving member 23 from excessively sliding and makes the structure more reliable.

Please refer to FIG. 4, FIG. 6, and FIG. 7. FIG. 6 is an enlarged diagram of a B portion of the assembly of the adjusting mechanism 100 and the supporting leg 40 shown in FIG. 4 according to the first embodiment of the present invention.

The first adjusting assembly 20 further includes a second installing seat 26, as shown in FTG. 1 to FIG. 4 and FIG. 6.

The second instaliing seat 26 is disposed on an end of the first supporting pipe 41 away from the second supporting pipe 42. In other embodiment, the second installing seat 26 also can be disposed on the second supporting pipe 42 according to a situation that the first engaging member 21 is movably disposed on the second supporting pipe 42. Preferably, in this embodiment, the second installing seat 26 is sheathed on the first supporting pipe 41. The first operating member 25 is slidably disposed on the second installing seat 26, and a sliding direction of the first operating member 25 is intersecting with the sliding direction of the driving member 23. Preferably, the sliding direction of the first operating member 25 is substantially perpendicular to the sliding direction of the driving member 23. A first operating portion 251 is formed on an end of the first operating member 25 away from the driving member 23 and exposed out of the second installing seat 26. A driving portion 252 is formed on an end of the first operating member 25 close to the driving member 23. A driven portion 233 is formed on an end of the driving member 23 close to the first operating member 25. The driving portion 252 slidably abuts against the driven portion 233.

Mi inclined strnctnre is formed on at least one of two contacting snrfaces of the driving portion 252 and the driven portion 233. Preferably, in this embodiment, the inclined structure is formed on each of the two contacting surfaces of the driving portion 252 and the driven portion 233. The inclined structure is inclined along the direction from the second supporting pipe 42 to the first supporting pipe 41 and away from the centerline of the first supporting pipe 41, such that the driving portion 252 and the driven portion 233 can cooperate with each other smoothly. The first operating portion 251 slides toward the driving member 23 and drives the driving portion 252 to push the driven portion 233. The driven portion 233 drives the driving member 23 to drive the first engaging member 21 to disengage from the corresponding first engaging portion, which makes the operation easier.

Please refer to FIG. 4 to FIG. 6. The first adjusting assembly 20 further includes a second resilient member 27.

The second resilient member 27 abuts between the first operating member 25 and one of the first supporting pipe 41 and the second installing seat 26. Preferably, in this embodiment, the second resilient member 27 abuts between the first operating member 25 and the second installing seat 26.

However, it is not limited to this embodiment. The second resilient member 27 biases the first operating member 25 to move away from the driving member 23, so as to recover the first operating member 25, which makes the structure simpler and the operation easier. In this embodiment, the second resilient member 27 is preferably a spring. The spring is compressed and abuts between the second installing seat 26 and the first operating member 25, so as to bias the first operating member 25 to move away from the driving member 23.

Please refer to FIG. 1 to FIG. 5. Each of the first engaging portions is an engaging hole 421 formed on the second supporting pipe 42. The first engaging member 21 engages with one of the engaging holes 421, which makes the structure reasonable. Preferably, in this embodiment, an end of the first engaging member 21 engaging with the engaging hole 421 is inclined toward the second supporting pipe 42, such that the first engaging member 21 can easily engage with or disengage from the engaging hole 421.

Please refer to FIG. 4 to FIG. 7. Preferably, in this embodiment, two positioning slots 221 are formed on the first installing seat 22 and symmetric to each other. Two first engaging members 21 are disposed on the first installing seat 22 and symmetric to each other. Two driving slots 231 are formed on the driving member 23 and symmetric to each other. The two driving slots 231 are inclined along the direction from the second supporting pipe 42 to the first supporting pipe 41 and away from each other, i.e., each of the two driving slots 231 is inclined along the direction from the second supporting pipe 42 to the first supporting pipe 41 and away from the centerline of the first supporting pipe 41, such that the two driving slots 231 forms a "/\" shaped structure. The linking rod 28 of each of the first engaging members 21 slidabiy passes through the corresponding positioning slot 221 and the corresponding driving slot 231. correspondingly, two rows of the first engaging portions are respectiveiy formed on two opposite walls of the second supporting pipe 42, such that the first engaging member 21 and the first engaging portion located on the same side can engage with each other. When the two first engaging members 21 move away from each other, the two engaging members 21 engage with the corresponding first engaging portions. When the two first engaging members 21 move close to each other, the two first engaging members 21 disengage from the corresponding first engaging portions, such that connecting structure and positioning structure of the first supporting pipe 41 and the second supporting pipe 42 are more reliable, and such that connecting structure and driving structure of the driving member 23 and the first engaging member 21 are more reliable. However, it is not limited to this embodiment. Similarly, two first operating members 25 are disposed on the second installing seat 26 and symmetric to each other. Each of the first operating members respectively abuts against the corresponding second resilient member 27. correspondingly, two driven porrions 233 are disposed on the driving member 23. Each of the two driven portions 233 cooperatives with the corresponding first operating member 25, which brings convenience in use.

Please refer to FIG. 1 to FIG. 4 and FIG. 6. In this embodiment, an indicating component 10 is disposed on the second installing seat 26 for indicating whether the supporting leg 40 is installed properly or not. Specifically, the indicating component 10 includes an indicating block 11 and a third resilient member 12. The indicating block 11 is movably disposed on an end of the second installing seat 26 away fron the first supporting pipe 41. A through hole 261 is formed on the end of the seoond installing seat 26 away from the first supporting pipe 41. The indicating block 11 includes a first indicating portion 111, a second indicating portion fl2, and a contacting protrusion 113 arranged along a direction from the first supporting pipe 41 to the second installing seat 26 sequentially. The contacting protrusion 113 slidably passes through the through hole 261 and is selectively received in or protrudes from the through hole 26L. An indicating window 262 is formed on a side of the second installing seat 26 for revealing the first indicating portion 111 or the second indicating portion 112. When the contacting protrusion 113 protrudes from the throllgh hole 261, the indicating window 262 reveals the first indicating portion 111, i.e., the end of the second installing seat 26 away from the first supporting pipe 41 does not abut against a floor adapted for supporting the supporting leg 40. In other words, the supporting leg 40 is located at an erroneous position and cannot provide an enough supporting effect for the base 52, and therefore it is required to adjust the length of the supporting leg 40. when the contacting protrusion 113 is received in the through hole 261, the indicating window 262 reveals the second indicating portion 112, i.e., the end of the second installing seat 26 away from the first supporting pipe 41 firmly abuts against the floor adapted for supporting the supporting leg 40. Therefore, the supporting leg 40 can provide an enough supporting effect or the base 52. In other words, the sllpporting leg 40 is located at a correct position.

In conclusion, such structural design provides an effective indication and makes the operation safer and more convenience, which ensures that the supporting leg 40 is operated in a normal condition.

The third resilient member 12 abuts between the indicating block 11 and at least one of the second installing seat 26 and the first snpporting pipe 41. Preferably, in this embodiment, the third resilient member 12 abuts between the second installing seat 26 and the indicating block 11. However, it is not limited to this embodiment. The third resilient member 12 biases the indicating block 11 to move away from the first supporting pipe 41 for driving the ccntacting protrusion 113 to protrude from the through hole 261. When the second installing seat 26 is not to abut against the floor which supports the supporting leg 40 anymore, the third resilient member 12 drives the indicating block 11 to move away from the first supporting pipe 41 automatically for driving the contacting protrusion 113 to protrude from the through hole 261, such that the indicating window 262 reveals the first indicating portion 111, which makes the operation easier. Preferably, the third resilient member 12 is a spring.

The spring is compressed and abuts between the second installing seat 26 and the indicating block 11 for biasing the indicating block 11 to move away from the first supporting pipe 41, so as to drive the contacting protrusion 113 to protrude from the through hole 261. In order to make it more convenience to observe the indicating block 11, the first indicating portion 111 is preferably a red block, and the second indicating portion 112 is preferably a green block.

However, the colors of the first indicating portion 111 and the second indicating portion 112 are not limited thereto, and it depends on practical demands.

Please refer to FIG. 1 to FIG. 7. The operation principle of the adjusting mechanism 100 of this embodiment is described as follow. When it is required to adjust the length of the assembly of the first supporting pipe 41 and the second supporting pipe 42, firstly the first operating portion 251 is to be pressed for overcoming a resilient force generated by the second resilient member 27, so as to drive the first operating member 25 to move toward the driven portion 233, such that the driving pcrticn 252 slidably abuts against the corresponding driven portion 233. The driving member 23 is driven to overcome a resilient force generated by the first resilient member 24 to move away from the second supporting pipe 42. The linking rod 28 is pushed to slide within the positioning slot 221 by the driving slot 231 on the driving member 23, such that the first engaging member 21 is driven to disengage from the corresponding first engaging portion.

When the first operating portion 251 keeps being pressed, the first supporting pipe 41 can be operated to slide relative to the second supporting pipe 42, so as to adjust the length of the assembly of the first supporting pipe 41 and the second supporting pipe 42 as reguired. When the first operating portion 251 is released, the first operating member 25 is driven to recover by the resilient force generated by the second resilient member 27. At the same time, the driving member 23 is driven to slide toward the second supporting pipe 42 and recovered by the resilient force generated by the first resilient member 24. The driving slot 231 pushes the linking rod 28 to slide in the positioning slot 221 for driving the first engaging member 21 to recover automatically and engage with another corresponding first engaging portion. :t should be noted that the supporting leg 40 is disposed along the direction perpendicular to the base 52 when using, such that the supporting leg 40 can contact with the floor. When the contacting protrusion 113 is pushed to be received in the through hole 261 by the floor contacting with the supporting leg 40, the indication window 262 on the second installing seat 26 reveals the second indicating portion 112, which indicates that the supporting leg 40 is located at the correct position and can provide the enough supporting effect for the base 52.

Please refer to FIG. 8 and FTG. 9. FTG. 8 is a perspective diagram of assembly of an adjusting mechanism 100' and a child safety seat 200' according to a second embodiment of the present invention. FIG. 9 is a perspective diagram of the assembly of the adjusting mechanism 100' and the supporting leg 40' located at a third position according to the second embodiment of the present invention. Structure of the child safety seat 200' of the second embodiment is similar to structure the child safety seat 200 of the first embodiment.

The difference between the first embodiment and the second embodiment is that the supporting leg 40' of the second embodiment includes not only the first supporting pipe 41 and the second supporting pipe 42 but also a third supporting pipe 43 retractable relative to the second supporting pipe 42. The third supporting pipe 43 is installed on the base 52, by which the supporting leg 40' is installed on the base 52. Structure of the adjusting mechanism 100' of the second embodiment is similar to structure of the adjusting mechanism 100 of the first embodiment. The difference the first embodiment and the second enbodiment is that the adjusting mechanism 100' of the second embodiment includes rot only the first adjusting assexrbly2obut also a secondadjustingassembly3O. The second adjusting assembly 30 is disposed between the second supporting pipe 42 and the third supporting pipe 43 for restraining the third supporting pipe 43 from sliding relative to the second supporting pipe 42 or for allowing the third pipe 43 to slide relative to the second supporting pipe 42, so as to adjust a length of assembly of the second supporting pipe 42 and the third supporting pipe 43.

Please refer to FIG. 8 to FIG. 10. FIG. 10 is a perspective diagram of the assembly of the adjusting mechanism 100' and the supporting leg 40' located at a fourth position according to the second embodiment of the present invention. In this embodiment, the second supporting pipe 42 is slidably disposed on the third supporting pipe 43 for allowing the second supporting pipe 42 to retract relative to the third supporting pipe 43. However, it is not limited to this embodiment.

Preferably, in this embodiment, the second supporting pipe 42 is sliably disposed inside the third supporting pipe 43, such that structures of the second supporting pipe 42 and the third supporting pipe 43 are more compact. However, it is not limited to this embodiment.

Please refer to FIG. 8 to FIG. 12. FIG. 11 is a sectional diagram of the assembly of the adjusting mechanism 100' and the supporting leg 40' located at the fourth position shown in FIG. 10 according to the second embodiment of the present invention. FIG. 12 is an enlarged diagram of a C portion of the assembly of the adjusting mechanism 100' and the supporting leg 40' located at the fourth position shown in FTG. 11 according to the second embodiment of the present invention. In this embodiment, the second adjusting assembly includes a second engaging member 31 and a second operating member 33 connected to the second engaging member 31. The second operating member 33 and the second engaging member 31 are movably disposed on one of the second supporting pipe 42 and the third supporting pipe 43. At least two second engaging portions are formed on the other one of the second snpporting pipe 42 and the third supporting pipe 43. The number of the second engaging portions depends on practical demands. The second engaging portions are arranged along a telescopic direction of the second supporting pipe 42 relative to the third supporting pipe 43. Preferably, the adjacent two second engaging portions are evenly spaced from each other, which makes operation easier. However, it is not limited thereto.

Preferably, in this embodiment, the second engaging portion 31 and the second operating member 33 are movably disposed on the third supporting pipe 43. The second engaging portions are correspondingly disposed on the second supporting pipe 42. However, it is not limited to this embodiment. In other embodiment, the second engaging member 31 and the second operating member 33 also can be movably disposed on the second supporting pipe 42, and the second engaging portions are correspondingly disposed on the third supporting pipe 43. The second engaging member 31 selectively engages with one of the second engaging portions. The second operating member 33 drives the second engaging member 31 to disengage from the corresponding second engaging portion. When the second engaging member 31 engages with one of the second engaging portions, the second supporting pipe 42 is restrained from sliding relative to the third supporting pipe 43. When the second operating member 33 drives the second engaging member 31 to disengage from the corresponding second engaging portion, the second supporting pipe 42 is allowed to slide relative to the third supporting pipe 43, so as to adjust the length of the assembly of the second supporting pipe 42 and the third supporting pipe 43 as required. Afterwards, the second engaging member 31 engages with another corresponding second engaging portion, which completes adjustment of the length of the assembly of the second supporting pipe 42 and the third supporting pipe 43.

Please refer to FIG. 10 to FIG. 12. In this embodiment, the second adjusting assembly 30 further includes a third installing seat 32. The third installing seat 32 is disposed on the third supporting pipe 43. Preferably, in this embodiment, the third installing seat 32 is sheathed on the third supporting pipe 43, which makes structures of the third installing seat 32 and the third supporting pipe 43 more compact. However, it is not limited to this embodiment. The second engaging member 31 is movably disposed on the third installing seat 32. Precisely, the second engaging meriber 31 is pivoted to the third installing seat 32 for implementing structure that the second engaging member 31 is movably disposed on the third supporting pipe 43, which makes structure of the second engaging member 31 simpler. However, it is not limited to thereto. In other embodiment, the third installing seat 32 also car be disposed on the second supporting pipe 42 for implementing structure that the second engaging member 31 is disposed on the second supporting pipe 42. Specifically, in this embodiment, a first engaging protrusion 311 protrudes from an end of the second engaging member 31 close to the second supporting pipe 42. The first engaging protrusion 311 selectively engages with one of the second engaging portions, which allows the second engaging member 31 to engage with the second engaging portion. A second operating member 33 is installed on a side of the second engaging member 31 away from the first engaging protrusion 311. A pivoting position of the second engaging member 31 and the third installing seat 32 is located between the first engaging protrusion 311 and the second operating member 33.

The second engaging member 31 is driven to rotate by operating the second operating member 33, such that the first engaging protrusion 311 is driven to engage with or disengage from the second engaging portion. Preferably, in this embodinent, the second operating member 33 and the second engaging member 31 can be integrally formed, which makes structure more compact and reasonable. However, connecting struoture of the second operating member 33 and the second engaging member 31 is not limited to this embodiment and depends on the practical demands. Preferably, in this embodiment, an end of the second engaging member 31 where the first engaging protrusion 311 is disposed is shielded in the third installing seat 32. A second operating portion is formed on the second operating member 33 and exposed out of the third installing seat 32 for operating the second operating meriber 33 easily.

Please refer to FIG. 11 and FIG. 12. In this embodiment, the second adjnsting assembly 30 further includes a fourth resilient member (not shown in figures) . An end of the fourth resilient member abuts against one of the third supporting pipe 43 and the third installing seat 32. The other end of the fourth resilient member abuts against one of the second engaging portion 31 and the second operating member 33. The fourth resilient member biases the second engaging member 31 to drives the first engaging protrusion 311 to move toward the corresponding second engaging portion. In other words, the fourth resilient member biases the second engaging member 31 to drive the first engaging protrusion 311 to move toward the second supporting pipe 42, such that the second engaging member 31 drives the first engaging protrusion 311 to recover and engage with the corresponding second engaging portion.

Specifically, the fourth resilient member can be a torsional spring. A middle portion of the torsional spring is disposed on the third installing seat 32. An end of the torsional spring abuts against the third supporting pipe 43. The other end of the torsional spring abuts against the second operating member 33, such that the second engagingmember 31 is driven to recover and engage with the corresponding second engaging portion.

However, the fourth resilient member is not limited thereto and depends on practical demands. Each of the second engaging portions is an engaging hole 421 formed on the second supporting pipe 42. The first engaging protrusion 311 engages with one of the engaging holes 421 cooperatively, which makes structure simpler and more reasonable. Preferably, in this embodiment, the first engaging protrusion 311 is an inclined structure and disposed toward the second supporting pipe 42, which allows the first engaging protrusion 311 to engage with or disengage from the engaging hole 421 easier. One second engaging mer±er 31, one fourth resilient member corresponding to the second engaging member 31, and one second operating member 33 are formed on each of two opposite sides of the third installing seat 32. The two second engaging member 31 are symmetric to each other. A row of the second engaging portions are disposed on each of the two opposite walls of the two supporting pipe 42 correspondingly. The second engaging member 31 and the second engaging portion located at the same side engage with each other, which makes the connecting structure and positioning structure of the third supporting pipe 43 and the second supporting pipe 42 more reliable.

Preferably, in this embodiment, each of the first engaging portions and the second engaging portions is the engaging hole 421 formed on the second supporting pipe 42. The first engaging protrusion 311 or the first engaging member 21 engages with the engaging holes 421, i.e., the two rows of the engaging holes 421 are shared for the second engaging member 31 and the first engaging member 21, but the second engaging member 31 and the first engaging member 21 respectively engage with the engaging holes 421 located at the same row but at different positions, which makes structure simpler and more compact and reduces manufacturing costs. Structure and configuration of the first engaging portions and the second engaging portions are not limited to thereto and depends on practical demands.

Please refer to FIG. 8 to FIG. 12. The operation principle of the adjusting mechanism 100' of the second embodiment is described as follows. The operation principle of the first adjusting assembly 20 for adjusting the length of assembly of the first supporting pipe 41 and the second supporting pipe 42 is similar to the one of the first embodiment. The detailed description is omitted herein. When it is required to adjust the length of the assembly of the second supporting pipe 42 and the third supporting pipe 43, the second operating portion of the second operating member 33 is to be pressed for overcoming a resilient force of the fourth resilient member.

The second engaging member 31 is driven to rotate and drives the first engaging protrusion 311 to disengage from the corresponding second engaging portion. When the second operating portion keeps being pressed, the second supporting pipe 42 is operated to slide relative to the third supporting pipe 43, so as to adjust the length of the assembly of the second supporting pipe 42 and the third supporting pipe 43 as required. Afterwards, the second operating portion is released, and the second operating member 33 is recovered by the resilient force of the fourth resilient member, such that the second engaging member 31 is driven to rotate reversely and the first engaging protrusion 311 recovers to engage with another corresponding second engaging portion, which complete adjustment of the length of the assembly of the second supporting pipe 42 and the third supporting pipe 43.

Furthermore, in this embodiment, the overall length of the supporting leg 40' can be adjusted by adjusting the length of assembly of the first supporting pipe 41 and the second supporting pipe 42 via the first adjusting assembly 20, or by adjusting the length of assembly of the second supporting pipe 42 and the third supporting pipe 43 via the second adjusting assembly 30, or combination thereof, which allows the length of the supporting leg 40' to be adjustable with multiple stages and diversify the operation of the adjustment.

Therefore, the length of the supporting leg 40' can be adjusted by one of the aforementioned methods. Furthermore, the supporting leg 40' can be retracted to a shortest length for reducing an occupied space. Since the supporting leg 40' can be adjusted to have different lengths according to different situations, the supporting leg 40' improves the safety of a child sitting on the child safety seat.

In the present invention, the adjusting meohanism is simple and reliable, and therefore it not only improve safety when using but also reduces manufacturing costs. Furthermore, since the child safety seat of the present invention includes the adjusting mechanism, the length of the supporting leg of the child safety seat can be adjusted as reguired, which has advantages of simple and reliable structure, easy operation, and low manufacturing cost, and improves safety of a child sitting on the child safety seat.

Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention.

Claims

Claims What is claimed is: 1. An adjusting mechanism installed on a supporting leg for adjusting a length of the supporting leg, the supporting leg comprising a first supporting pipe and a second supporting pipe retractable relative to each other, the adjusting mechanism comprising: a first adjusting assembly comprising: a first engaging member movably disposed on an end of one of the first supporting pipe and the second supporting pipe; at least two first engaging portions disposed on the other one of the first supporting pipe and the second supporting pipe, the at least two first engaging portions being arranged along a telescopic direction of the first supporting pipe relative to the second supporting pipe, and the first engaging menber selectively engaging with one of the at least two first engaging portions; a driving member movably disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed; and a first operating member movably disposed on The other end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed, the driving member being linked between the first engaging member and the first operating member, and the first operating member driving the driving member to drive the first engaging member to disengage from the corresponding first engaging portion.
2. The adjusting mechanism of claim 1, wherein the first adjusting assembly further comprises a first installing seat disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed, and the first engaging member is movably disposed on the first installing seat.
3. The adjusting mechanism of claim 2, wherein the first installing seat is disposed at an end of the first supporting pipe close to the second supporting pipe, the first engaging member is disposed on the first installing seat along a direction intersecting with the telescopic direction of the first supporting pipe relative to the second supporting pipe, and the at least two first engaging portions are disposed on the second supporting pipe.
4. The adjusting mechanism of claim 3, wherein the first adjusting assembly further comprises a first resilient member, an end of the first resilient member abuts against at least one of the first supporting pipe and the first installing seat, the other end of the first resilient member abuts against the driving member, and the first resilient member biases the driving member to drive the first engaging member to move toward the corresponding first engaging portion.
5. The adjusting mechanism of claim 4, wherein the driving member is slidably disposed on the first supporting pipe along a direction intersecting with a sliding direction of the first engaging member, and the driving member drives the first engaging member to selectively engage with or disengage from one of the at least two first engaging portions.
6. The adjusting mechanism of claim 5, wherein the first engaging member is slidably disposed on the first installing seat along a direction perpendicular to the telesoopic direction of the first supporting pipe relative to the second supporting pipe, and the driving member is slidably disposed on the first supporting pipe along a direction parallel to the telesoopic direotion of the first supporting pipe relative to the second supporting pipe.
7. The adjusting meohanism of claim 6, wherein at least one positioning slot is formed on the first installing seat and disposed along the sliding direction of the first engaging member, at least one driving slot is formed on the driving member and disposed along a direction inclined to a sliding direction of the driving member, at least one linking rod is disposed on the first engaging member, the at least one linking rod slidably passes through the at least one positioning slot and the at least one driving slot, and the at least one linking rod drives the first engaging member to selectively engage with or disengage from one of the at least two first engaging portions.
8. The adjusting mechanism of claim 7, wherein the at least one driving slot is inclined along a direction from the second supporting pipe to the first supporting pipe and away from a centerline of the first supporting pipe, and the first resilient member biases the driving member to move along a direction close to the second supporting pipe.
9. The adjusting mechanism of claim 6, wherein a restraining slot is further formed on the driving member and disposed along the sliding direction of the driving member, a positioning rod is disposed on the first installing seat, and the positioning rod slidably passes through the restraining siot.
10. The adjusting mechanism cf claim 2, wherein the first adjusting assembly further comprises a second installing seat, the second installing seat is disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed, the first installing seat is located at an end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed, the second installing seat is located at the other end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed, and the first operating member is movably disposed on the second installing seat.
11. The adjusting mechanism of claim 8, wherein the first adjusting assembly further comprises a second installing seat, the second installing seat is disposed on an end of the first supporting pipe away from the second supporting pipe, and the first operating member is slidably disposed on the second installing seat.
12. The adjusting mechanism of claim 11, wherein a sliding direction of the first operating member is intersecting with the sliding direction of the driving member, a first operating portion is formed on an end of the first operating member away from the driving member and exposed out of the second installing seat, a driving portion is formed on an end of the first operating member close to the driving member, a driven portion is formed on an end of the driving member close to the first operating member, the driving portion slidably abuts against the driven portion, an inclined structure is formed on at least one o two contacting surfaces of the driving portion and the driven portion, and when the first operating portion is pushed to slide along a direction close to the driving member, the first operating portion drives the driving portion to push the driven portion, such that the driven portion drives the driving member to drive the first engaging member to disengage from the corresponding first engaging portion.
13. The adjusting mechanism of claim 12, wherein the inclined structure is formed on each of the two contacting surfaces of the driving portion and the driven portion, and the inclined structure is inclined along a direction from the second supporting pipe to the first supporting pipe and away from the centerline of the first supporting pipe.
14. The adjusting mechanism of claim 12, wherein the first adjusting assembly further comprises a second resilient member, the second resilient member abuts between the first operating member and one of the first supporting pipe and the second installing seat, and the second resilient member biases the first operating member to move away from the driving member.
15. The adjusting mechanism of claim 1, wherein the at least two first engaging portions are engaging holes formed on the second supporting pipe, and the first engaging member engages with one of the engaging holes.
16. The adjusting mechanism of claim 11, wherein an indicating component is further disposed on the second installing seat, the indicating component comprises an indicating block and a third resilient member, the indicating block is movably disposed on an end of the second installing seat away from the first supporting pipe, a through hole is formed on the end of the second installing seat away from the first supporting pipe, the indicating block comprises a first indicating portion, a second indicating portion, and a contaoting protrusion arranged along a direction from the first supporting pipe to the second supporting pipe seguentially, the contacting protrusion is selectively received in or protrudes from the through hole, anindicatingwindowis formedona sideof the second installing seat for revealing the first indicating portion or the second indicating portion, the indicating window reveals the first indicating portion when the contacting protrusion protrudes from the through hole, the indicating window reveals the second indicating portion when the contacting protrusion is received in the through hole, the third resilient member abuts between the indicating block and one of the second installing seat and the first supporting pipe, and the third resilient member biases the indicating block to move away from the first supporting pipe, so as to drive the contacting protrusion to protrude from the through hole.
17. The adjusting mechanism of claim 16, wherein the supporting leg is located at an erroneous position when the indicating window reveals the first indicating portion, and the supporting leg is located at a correct position when the indicating window reveals the second indicating portion.
18. The adjusting mechanism of claim 1, wherein the supporting leg further comprises a third supporting pipe retractable relative to the second supporting pipe, the adjusting mechanism further comprises a second adjusting assembly, the second adjusting assembly comprises a second engaging member and a second operating member connected with the second engaging member, the second operating member and the second engaging member are movably disposed on one of the second supporting pipe and the third snpporting pipe, at least two second engaging portions are formed on the other one of the second supporting pipe and the third supporting pipe and arranged along a telescopic direction of the second supporting pipe relative to the third supporting pipe, the second engaging member selectively engages with one of the at least two second engaging portions, and the second operating member drives the second engaging member to disengage from the corresponding second engaging portion.
19. The adjusting mechanism of claim 18, wherein the second adjusting assembly further comprises a third installing seat, the third installing seat is disposed on the second supporting pipe or the third supporting pipe where the second engaging member is disposed, and the second engaging member is movably disposed on the third installing seat.
20. The adjusting mechanism of claim 19, wherein the third installing seat is disposed on the third supporting pipe, the second engaging member is pivoted to the third installing seat, and the at least two second engaging portions are disposed on the second supporting pipe.
21. The adjusting mechanism of claim 20, wherein a first engaging protrusion protrudes from an end of the second engaging member along a direction close to the second supporting pipe, and the first engaging protrusion selectively engages with one of the at least two second engaging portions.
22. The adjusting mechanism off claim 21, wherein the seccnd operating member is installed at an end of the second engaging member away from the first engaging prctrusion, and a pivcting positicn cf the second engaging member and the third installing seat is located between the first engaging protrusion and the second operating member.
23. The adjusting mechanism off claim 21, wherein the second adjusting assembly further comprises a fourth resilient member, an end of the fourth resilient member abuts against one of the third supporting pipe and the third installing seat, the other end of the fourth resilient member abuts against one of the second engaging member and the second operating member, and the fourth resilient member biases the second engaging member to drive the first engaging protrusion to move close to the corresponding second engaging portion.
24. The adjusting mechanism of claim 23, wherein the fourth resilient member is a torsional spring, a middle portion of the torsional spring is disposed on the third installing seat, an end of the torsional spring abuts against the third supporting pipe, and the other end of the torsional spring abuts against the second operating member.
25. The adjusting mechanism of claim 21, wherein each of the at least two second engaging portions is an engaging hole formed on the second supporting pipe, and the first engaging protrusion engages with one of the engaging holes.
26. The adjusting mechanism of claim 21, wherein each of the at least two first engaging portions and the at least two second engaging portions is an engaging hole formed on the second supporting pipe, and the first engaging protrusion or the first engaging member engages with one of the engaging holes.
27. A child safety seat comprising a seat assembly and a supporting leg for supporting the seat assembly, the child safety seat further comprising an adjusting mechanism installed on the supporting leg for adjusting a length of the supporting leg, the supporting leg comprising a first supporting pipe and a second supporting pipe retractable relative to each other, the adjusting mechanism comprising: a first adjusting assembly comprising: a first engaging member movably disposed on an end of one of the first supporting pipe and the second supporting pipe; at least two first engaging portions disposed on the other one of the first supporting pipe and the second supporting pipe, the at least two first engaging portions being arranged along a telescopic direction of first supporting pipe relative to the second supporting pipe, and the first engaging member selectively engaging with one of the at least two first engaging portions; a driving member movably disposed on the first supporting pipe or the second supporting pipe where the first engaging member is disposed; and a first operating member movably disposed on The other end of the first supporting pipe or the second supporting pipe where the first engaging member is disposed, the driving member being linked between the first engaging member and the first operating member, and the first operating member driving the driving member to drive the first engaging member to disengage from the corresponding first engaging portion.