CN105329123B - Adjustment mechanism and child safety seat with same - Google Patents

Abstract

The present invention provides an adjustment mechanism, which is installed on a supporting leg to adjust the length of the supporting leg, the supporting leg comprising a first supporting tube and a second supporting tube which are relatively retractable, the adjustment mechanism comprising a first adjustment component, the first adjustment component comprising a first clamping piece, a driving piece and a first operating piece, the first clamping piece being movably arranged at one end of one of the first supporting tube and the second supporting tube, the first operating piece being movably arranged at the other end of the first supporting tube or the second supporting tube having the first clamping piece, the driving piece being movably arranged at the first supporting tube or the second supporting tube having the first clamping piece, the driving piece being linkedly arranged between the first clamping piece and the first operating piece, the other of the first supporting tube and the second supporting tube being provided with at least two first clamping parts, the first clamping parts being arranged along the direction in which the first supporting tube and the second supporting tube are relatively retractable, the first clamping piece being selectively clamped at any first clamping part, and the first operating piece driving the driving piece to drive the first clamping piece to disengage from the clamping with the first clamping part.

Description

Adjusting mechanism and child safety seat with the adjusting mechanism

technical field

The invention relates to the field of vehicles, in particular to an adjustment mechanism and a child safety seat with the adjustment mechanism.

Background technique

With the continuous progress of society, the continuous development of economy, and the continuous improvement of science and technology, people are provided with more and more abundant consumer goods, thereby creating extremely excellent material conditions for improving people's living standards, and children's vehicles are many consumer goods One of. Among them, among the children's vehicles, since the child safety seat not only has the advantages of comfortable ride, but also can provide safety protection for the child, the child safety seat is more and more popular among people.

As we all know, when installing and fixing a child safety seat on a load such as a car seat, it is necessary to support the child safety seat through the supporting feet arranged at the bottom of the child safety seat to assist in the installation and fixing of the child safety seat, thereby strengthening The child safety seat is installed and fixed securely.

However, in the current market, the length of the supporting feet of the child safety seat is often fixed. When the child safety seat is installed on loads such as car seats of different sizes, the supporting feet of the child safety seat are often If the length is too long or too short, the supporting legs cannot play a supporting role, thus causing the supporting legs to fail to assist the installation and fixing of the child safety seat well, making the installation and fixing of the child safety seat unstable and reliable, causing The installation and fixing of the child safety seat brings potential safety hazards, and may even cause injury to children riding in the child safety seat, thus reducing the safety of riding. In addition, there is also a support foot whose length can be adjusted and changed on the market to adapt to child safety seats installed on loads such as car seats of different sizes and specifications. However, the structure for adjusting the length of the support foot is extremely complicated. The cost is very expensive, the operation process of adjusting the length of the supporting legs is extremely cumbersome and inconvenient to use, and the structure is not reliable, and there are also potential safety hazards. It is far from meeting the needs of users, seriously affecting the use of users and child safety seats. promotion and popularization.

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

Contents of the invention

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

Another object of the present invention is to provide a child safety seat that can adjust the length of the supporting legs to a desired length, has a simple and reliable structure, is simpler and more convenient to adjust, and can reduce production costs.

In order to achieve the above object, the present invention provides an adjustment mechanism, which is installed on the supporting foot to adjust the length of the supporting foot, and the supporting foot includes a relatively telescopic first supporting tube and a second supporting tube, wherein the The adjustment mechanism includes a first adjustment assembly, and the first adjustment assembly includes two first engaging members, a driving member and a first operating member that are symmetrically arranged, and the first engaging member is movably arranged on the first One end of one of the support tube and the second support tube, the first operating part is movably arranged on the other end of the first support tube or the second support tube with the first engaging part, and the driving The part is movably arranged on the first support tube or the second support tube with the first engaging part, and the driving part is interlockingly arranged between the first engaging part and the first operating part. The opposite side walls of the other one of the first support tube and the second support tube are respectively provided with at least two first engaging parts, and the first engaging parts are arranged along the first support tube and the second support tube The tubes are arranged in the direction of expansion and contraction, the first engaging part is selectively engaged with any one of the first engaging parts, and the first operating part drives the driving part to drive the first engaging part disengage from the engagement with the first engaging part; wherein, the first engaging part on the same side is engaged with the first engaging part in cooperation with each other.

Preferably, the first adjustment assembly further includes a first mounting seat, the first mounting seat is provided on the first support tube or the second support tube with the first engaging member, the first The engaging part is movably disposed on the first mounting seat.

Preferably, the first mounting seat is arranged at an end of the first support tube close to the second support tube, and the first engaging member is staggered along the first support tube and the second support tube The one that slides relative to the direction of expansion and contraction is provided on the first installation seat, and the first engaging part is provided on the second support tube.

Preferably, the first adjustment assembly further includes a first elastic member, one end of the first elastic member abuts against at least one of the first support tube and the first mounting base, and the first elastic The other end of the member abuts against the driving member, and the first elastic member constantly drives the driving member to drive the first engaging member to move closer to the corresponding one of the first engaging portions.

Preferably, the driving member is provided on the first support tube to slide along the sliding direction intersecting with the first engaging member, and the sliding driving member drives the first engaging member to selectively interact with the first engaging member. Any one of the first engaging portions is engaged or disengaged.

Preferably, the first engaging member is provided on the first mounting seat to slide along a direction perpendicular to the relative expansion and contraction direction of the first support tube and the second support tube, and the driving member is arranged along a direction parallel to the first support tube A support tube and the second support tube are arranged on the first support tube to slide in the direction of expansion and contraction relative to each other.

Preferably, the first mounting seat is provided with a positioning elongated hole arranged along the sliding direction of the first engaging member, and the driving member is provided with a driving elongated hole, and the driving elongated hole is arranged along the The sliding direction of the driving part is set obliquely; the first engaging part is provided with a linkage rod, and the linkage rod is slidably inserted into the positioning elongated hole and the driving elongated hole. The driving part pushes the driving elongated hole to push the linkage rod to slide in the positioning elongated hole, and the sliding linkage rod drives the first engaging part to selectively connect with any The first engaging portion is engaged or disengaged.

Preferably, the driving elongated hole is inclined in a direction away from the center line of the first supporting tube along the direction from the second supporting tube to the first supporting tube; the first elastic member constantly drives The driving member moves toward the direction close to the second support tube.

Preferably, the driving part is also provided with a limiting elongated hole, the limiting elongated hole is arranged along the sliding direction of the driving part, and the first mounting seat is provided with a positioning rod, and the positioning rod is in a sliding The thread is placed in the limiting elongated hole.

Preferably, the first adjustment assembly further includes a second mounting seat, the second mounting seat is provided on the first support tube or the second support tube with the first engaging member, and the first The mounting seat is located at 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, and the first operating part is movable on the Describe the second mount.

Preferably, the first adjustment assembly further includes a second mounting seat, the second mounting seat is provided at an end of the first support tube away from the second support tube, and the first operating member slides Set on the second mounting seat.

Preferably, the sliding direction of the first operating member is staggered with the sliding direction of the driving member, and the end of the first operating member away from the driving member is formed with a first An operating part, a driving part is formed at one end of the first operating part close to the driving part, a driven part is formed at an end of the driving part close to the first operating part, and the driving part and the driven part slide Contradiction, at least one of the two surfaces of the driving part and the driven part in contact with each other is formed with a slope structure; push the first operating part to slide towards the direction of the driving part, the sliding first operation The driven part drives the driving part to push the driven part to act, and the driven part drives the driving part to drive the first engaging part to disengage from the first engaging part.

Preferably, both surfaces of the driving part and the driven part in contact with each other are formed with the slope structure, and the slope structure moves away from the first support tube along the direction from the second support tube to the first support tube. A support tube is inclined in the direction of the centerline.

Preferably, the first adjustment assembly further includes a second elastic member, and the second elastic member abuts between one of the first support tube and the second mounting seat and the first operating member , the second elastic member constantly drives the first operating member to move away from the driving member.

Preferably, the first engaging portion is an engaging hole opened in the second support tube, and any of the engaging holes is mutually engaged with the first engaging member.

Preferably, the second mounting base is also provided with an indicating component, the indicating component includes an indicating block and a third elastic member, and the indicating block is movable on the second mounting base away from the first support tube One end of the second mounting base is provided with a through hole at the end away from the first support tube, and the indicator block includes first indicating parts arranged in sequence along the direction from the first support tube to the second mounting base , a second indicating part and a conflicting convex part, the conflicting convex part slides through the through hole, the conflicting convex part is selectively hidden in or protrudes out of the through hole, the second mounting seat The side part is provided with an indication window for exposing the first indication part or the second indication part; the interference convex part protrudes out of the through hole, and the indication window reveals the first indication part; If the convex part is hidden in the through hole, the indicating window reveals the second indicating part; the third elastic member abuts against at least one of the second mounting seat and the first support tube and the Between the indicating blocks, the third elastic member constantly drives the indicating block to move away from the first support tube so as to drive the conflicting protrusion to protrude out of the through hole.

Preferably, when the indicator window reveals the first indicator portion, the support leg is at a wrong use position; when the indicator window reveals the second indicator portion, the support leg is at a correct use position.

Preferably, the support foot further includes a third support tube that is telescopic relative to the second support tube, and the adjustment mechanism further includes a second adjustment assembly, the second adjustment assembly includes a second engaging member and The second operating member connected to the second engaging member, the second operating member and the second engaging member are movable on one of the second support tube and the third support tube, the second The other of the support tube and the third support tube is provided with at least two second engaging parts, and the second engaging parts are arranged along the relative expansion and contraction direction of the second support tube and the third support tube. The second engaging member is selectively engaged with any one of the second engaging portions, and the second operating member drives the second engaging member to disengage from the engaging with the second engaging portion.

Preferably, the second adjustment assembly further includes a third mounting seat, the third mounting seat is provided on the second support tube or the third support tube with the second engaging member, and the second engaging member Parts are movable on the third installation seat.

Preferably, the third mounting seat is arranged on the third support tube, the second engaging member is pivotally connected to the third mounting seat, and the second engaging part is arranged on the second supporting tube. Tube.

Preferably, one end of the second engaging member extends toward the direction close to the second support tube with a first engaging protrusion, and the first engaging protrusion selectively engages with any of the second supporting tubes. snap part.

Preferably, the second operating member is mounted on an end of the second engaging member away from the first engaging protrusion, and the pivotal position between the second engaging member and the third mounting seat is located at the end of the second engaging member. between the first engaging protrusion and the second operating member.

Preferably, the second adjustment assembly further includes a fourth elastic member, one end of the fourth elastic member abuts against one of the third support tube and the third installation seat, and the fourth elastic member The other end of the second engaging member abuts against one of the second engaging member and the second operating member, and the fourth elastic member constantly drives the second engaging member to drive the first engaging protrusion toward The corresponding one of the second locking parts moves.

Preferably, the fourth elastic member is a torsion spring, the middle part of the torsion spring is arranged on the third mount, one end of the torsion spring abuts against the third support tube, and the torsion spring The other end abuts against the second operating member.

Preferably, the second engaging portion is an engaging hole opened in the second support tube, and any one of the engaging holes and the first engaging protrusion are mutually engaged.

Preferably, both the first engaging portion and the second engaging portion are engaging holes opened in the second support tube, and any one of the engaging holes is compatible with the first engaging protrusion or the first engaging protrusion. The engaging parts are engaged with each other.

In order to achieve the above object, the child safety seat of the present invention includes a seat group and a support foot for supporting the seat group, the support foot is installed on the seat group, wherein the support foot is also provided with The aforementioned adjusting mechanism is arranged.

Since the adjustment mechanism of the present invention includes a first adjustment assembly, the first adjustment assembly includes a first engaging member, a driving member, and a first operating member, and the first engaging member is movably arranged in the first support tube and the second support tube. At one end of one, the first operating part is movably arranged on the other end of the first support tube or the second support tube with the first engaging part, and the driving part is movably arranged on the first support tube or the second support tube having the first engaging part. Two supporting tubes, the driving part is arranged between the first engaging part and the first operating part in linkage, the other of the first supporting tube and the second supporting tube is provided with at least two first engaging parts, the first The engaging parts are arranged along the relative expansion and contraction direction of the first support tube and the second support tube. The first engaging part is selectively engaged with any first engaging part. The first operating part drives the driving part to drive the first card The engaging part disengages from the engagement with the first engaging part. The structure of the adjustment mechanism of the present invention is simple and reliable, thereby reducing the production cost and improving the safety of use. When the first engaging part is engaged with any first engaging part, the relative telescopic movement between the second support tube and the first support tube is prohibited; when the first operating part is operated to drive the driving part to drive the first engaging When the part disengages from the engagement with the first engaging part, the telescopic movement of the second support tube relative to the first support tube can be operated, so as to adjust the combined length of the first support tube and the second support tube to the required length , that is, adjust the length of the supporting leg to the required length, and then engage the first engaging part with the other corresponding first engaging part to complete the length adjustment operation of the supporting leg, and the adjustment operation is more convenient. It is simple and convenient, which greatly facilitates the use of users. Because 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 supporting legs to the required length, simple and reliable structure, simpler and more convenient adjustment operation, and can reduce The advantages of production cost, and also improve the safety of children riding.

Description of drawings

FIG. 1 is an assembled perspective view of a child safety seat according to a first embodiment of the present invention.

FIG. 2 is a combined perspective view of the supporting legs provided with the adjustment mechanism according to the first embodiment of the present invention in a length position.

FIG. 3 is a combined perspective view of the supporting legs provided with the adjustment mechanism of the first embodiment of the present invention at another length position.

FIG. 4 is a full sectional view of FIG. 3 .

FIG. 5 is an enlarged view of part A in FIG. 4 .

FIG. 6 is an enlarged view of part B in FIG. 4 .

FIG. 7 is a schematic perspective view of the three-dimensional structure of the driving member of the adjustment mechanism of the present invention.

FIG. 8 is an assembled perspective view of a child safety seat according to a second embodiment of the present invention.

FIG. 9 is a combined perspective view of the supporting legs provided with the adjustment mechanism according to the second embodiment of the present invention in a length position.

FIG. 10 is a combined perspective view of the supporting legs provided with the adjustment mechanism of the second embodiment of the present invention at another length position.

FIG. 11 is a full sectional view of FIG. 10 .

FIG. 12 is an enlarged view of part C in FIG. 11 .

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and preferred embodiments, but the embodiments of the present invention are not limited thereto.

Please refer to FIG. 1 and FIG. 2 , which show the child safety seat 200 of the first embodiment of the present invention and the adjustment mechanism (not marked in the figure) of the first embodiment of the present invention, wherein the child safety seat 200 of the present embodiment It includes a seat set 50 and a supporting foot 40 for supporting the seat set 50 , and the supporting foot 40 is installed on the seat set 50 . Specifically, in this embodiment, the seat group 50 includes a seat body 51 and a base 52, the seat body 51 is arranged on the base 52, and the tops of the supporting legs 40 are installed on the base 52, when using the supporting legs 40, the The supporting feet 40 are arranged along the vertical direction to play the supporting role of the supporting feet 40, but not limited thereto. The adjusting mechanism of this embodiment is installed on the supporting foot 40 to adjust the length of the supporting foot 40 .

Please refer to Fig. 2 to Fig. 4, in this embodiment, the support foot 40 includes the first support tube 41 and the second support tube 42 that can be relatively stretched on the base 52. In detail, in this embodiment, the first support tube 41 is provided on the second support tube 42 to slide along a direction parallel to the second support tube 42, so as to realize the relative expansion and contraction of the first support tube 41 and the second support tube 42 , but it is not limited to this; preferably, in this embodiment, the first support tube 41 is slidably arranged inside the second support tube 42, and the structure is more reasonable and compact, but this is not a limitation limit.

Please refer to FIG. 2 to FIG. 7 , the adjustment mechanism of this embodiment includes a first adjustment assembly 20, and the first adjustment assembly 20 includes a first engaging member 21, a driving member 23 and a first operating member 25, and the first engaging member 21 One end of one of the first support tube 41 and the second support tube 42 is movably arranged, and the first operating member 25 is movably arranged on the other end of the first support tube 41 or the second support tube 42 having the first engaging member 21. At one end, the driving part 23 is movably arranged on the first support tube 41 or the second support tube 42 with the first engaging part 21, and the driving part 23 is interlockingly arranged between the first engaging part 21 and the first operating part 25, The other of the first support tube 41 and the second support tube 42 is provided with at least two first engaging parts (not marked in the figure), and the specific number of the first engaging parts can be flexibly set according to actual usage requirements Optional, the present invention is not limited thereto, the first engaging parts are arranged along the direction in which the first supporting tube 41 and the second supporting tube 42 are relatively stretchable, and, preferably, one of the two adjacent first engaging parts The spacing between them is equal, the structure is more reasonable, and the use is more convenient, but it is not limited thereto. Preferably, in this embodiment, the first engaging member 21 is movably arranged at one end of the first support tube 41 , the first operating member 25 is movably arranged at the other end of the first support pipe 41 , and the driving member 23 is movably arranged at the first end of the first support pipe 41 . The supporting tube 41, and the first engaging part is correspondingly arranged on the second supporting tube 42, and the structure is more reasonable and compact. Of course, it is not limited thereto. In other embodiments, the first engaging part 21, the driving part 23 and the first operating member 25 can also be movably disposed on the second support tube 42, while the first engaging portion is correspondingly disposed on the first support tube 41, which will not be repeated here. The first engaging member 21 is selectively engaged with any first engaging portion, and the first operating member 25 drives the driving member 23 to drive the first engaging member 21 out of engagement with the first engaging portion. The structure of the adjustment mechanism in this embodiment is simple and reliable, thereby reducing the production cost and improving the safety of use. When the first engaging member 21 is engaged with any first engaging portion, the relative telescopic movement between the first support tube 41 and the second support tube 42 is prohibited; when the first operating member 25 is operated to drive the driving member 23 When the first engaging part 21 is driven to disengage from the engagement with the first engaging part, the telescopic movement of the second support tube 42 relative to the first support tube 41 can be operated to adjust the length of the support leg 40 to a desired length , and then make the first engaging part 21 engage with the other corresponding first engaging part, and then the length adjustment operation of the supporting leg 40 can be completed, and the adjustment operation is simpler and more convenient, which greatly facilitates the user's use. Specifically, as follows:

Please refer to Fig. 4, Fig. 5 and Fig. 7, the first adjustment assembly 20 also includes a first mounting base 22, and the first mounting base 22 is arranged on the first support tube 41, preferably, in this embodiment, the first mounting base 22 The seat 22 is arranged on the end of the first support tube 41 close to the second support tube 42. Of course, in other embodiments, the second support tube 42 can also be set according to the situation that the first engaging member 21 is movable. A mounting seat 22 is correspondingly disposed on the second support tube 42 , which will not be repeated here. Moreover, the first installation seat 22 is preferably disposed inside the first support tube 41 to reduce the occupied space and make the structure more compact, but it is not limited thereto. The first engaging member 21 is movable on the first mounting seat 22. Specifically, the first engaging member 21 slides along a direction that intersects with the first supporting tube 41 and the second supporting tube 42 to be relatively telescopic. The seat 22, so that the first engaging member 21 prevents the first support tube 41 from telescopically sliding relative to the second support tube 42, the structure is more reasonable, but not limited thereto. Preferably, in the embodiment, the first adjustment assembly 20 further includes a first elastic member 24, and one end of the first elastic member 24 abuts against at least one of the first support tube 41 and the first mounting base 22, and the first The other end of an elastic member 24 abuts against the driving member 23. Preferably, in this embodiment, the first elastic member 24 abuts between the first mounting seat 22 and the driving member 23, but it is not limited thereto. ; The first elastic member 24 constantly drives the driving member 23 to drive the first engaging member 21 to move toward a corresponding first engaging portion. The first engaging part 21 can be automatically reset and engaged with the corresponding first engaging part, the structure is more reasonable, and the operation is more convenient and labor-saving. Specifically, in this embodiment, the driving member 23 slides along at least one of the first supporting tube 41 and the first mounting base 22 that is staggered with the sliding direction of the first engaging member 21. In this embodiment, The driving member 23 is preferably slidably arranged inside the first support pipe 41, the structural layout is more reasonable, the occupied space is reduced, and the structure is more reasonable and compact, but it is not limited thereto; the sliding driving member 23 drives The first engaging member 21 is selectively engaged with or disengaged from any first engaging portion. More specifically, the first engaging member 21 is preferably provided on the first mounting seat 22 to slide along a direction perpendicular to the relative expansion and contraction direction of the first support tube 41 and the second support tube 42, so that the first engaging member 21 can prevent The effect of the telescopic sliding of the first support tube 41 relative to the second support tube 42 is more reasonable in structure, but it is not limited thereto. The driver 23 is preferably parallel to the first support tube 41 and opposite to the second support tube 42. The telescopic direction is slidingly arranged on the first support pipe 41, and the structure is more reasonable and compact, but it is not limited thereto. More specifically, the first mounting base 22 is provided with a positioning elongated hole 221 arranged along the sliding direction of the first engaging member 21 , the driving member 23 is provided with a driving elongated hole 231 , and the driving elongated hole 231 is arranged along the direction of the driving member 23 . The sliding direction is inclined; the first engaging member 21 is provided with a linkage rod 28, and the linkage rod 28 is slidably inserted into the positioning elongated hole 221 and the driving elongated hole 231, and the sliding driving member 23 makes the drive The elongated hole 231 pushes the connecting rod 28 to slide in the positioning elongated hole 221, and the sliding connecting rod 28 drives the first engaging part 21 to selectively engage or disengage with any first engaging part. Snap fit, simple and reasonable structure, convenient and quick operation. Preferably, the driving elongated hole 231 is inclined in a direction away from the centerline of the first support tube 41 along the direction from the second support tube 42 to the first support tube 41 , and when the driving member 23 moves away from the second support tube 42 When sliding in the direction, 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 disengage from the engagement with the first engaging portion; when the driving member 23 approaches the second When the direction of the two support tubes 42 slides, the elongated hole 231 is driven to push 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; of course , the inclination direction of the driving elongated hole 231 is not limited thereto. In this embodiment, the first elastic member 24 constantly drives the driving member 23 to move toward the direction close to the second support tube 42, so as to push the linkage rod 28 to drive the first engaging member 21 toward the corresponding first engaging portion. The direction of movement makes the first engaging part 21 automatically reset and engage with the corresponding first engaging part, and the structure is simpler and more reasonable. In detail, in this embodiment, the first elastic member 24 is preferably a spring, and the spring is compressed and abuts between the first mounting seat 22 and the driving member 23, so as to realize constant driving of the driving member 23 toward the second support The direction of the tube 42 moves. The driver 23 also offers a limit elongated hole 232, the limit elongated hole 232 is arranged along the sliding direction of the driver 23, the first mounting seat 22 is provided with a positioning rod 29, and the positioning rod 29 is slidably placed in the limit length. In the shaped hole 232, the excessive sliding of the driving member 23 is prevented, and the structure is safer and more reliable.

Referring to Fig. 4, Fig. 6 and Fig. 7, the first adjustment assembly 20 also includes a second mounting seat 26 (as shown in Fig. 1 to Fig. 4 and Fig. 6), and the second mounting seat 26 is located on the first support tube 41 away from At one end of the second support pipe 42, of course, in other embodiments, the second mounting seat 26 can be correspondingly arranged on the second The support tube 42 will not be described in detail here. Moreover, preferably, the second mounting seat 26 is sheathed on the outside of the first support tube 41, and the structural layout is more reasonable. The first operating member 25 is slidably disposed on the second mount 26, and the sliding direction of the first operating member 25 is staggered with the sliding direction of the driving member 23. Preferably, the sliding direction of the first operating member 25 is perpendicular to the driving member 23. The sliding direction of the first operating member 25 is formed at the end away from the driving member 23 with a first operating portion 251 exposed to the outside of the second mount 26, and at the end of the first operating member 25 close to the driving member 23 is formed with a driving portion 252. An active part 233 is formed on the end of the part 23 close to the first operating part 25, the driving part 252 is in sliding contact with the driven part 233, and at least one of the two surfaces of the driving part 252 and the driven part 233 in contact with each other is formed with a slope Structure, preferably, both surfaces of the driving part 252 and the driven part 233 in contact with each other are formed with a slope structure, and the slope structure moves away from the centerline of the first support tube 41 along the direction from the second support tube 42 to the first support tube 41 The direction is inclined, so that the cooperation structure of the sliding interference between the driving part 252 and the driven part 233 is more reasonable. Push the first operating part 251 to slide towards the direction of the driving part 23, the sliding first operating part 251 drives the driving part 252 to push the driven part 233 to act, and the driven part 233 drives the driving part 23 to drive the first The engaging part 21 is disengaged from the engagement with the first engaging part, and the operation is simple and convenient.

Please refer to FIG. 4 and FIG. 6 , preferably, the first adjustment assembly 20 further includes a second elastic member 27, and the second elastic member 27 abuts against one of the first support tube 41 and the second mounting base 26 and the first Between an operating member 25, preferably, in this embodiment, the second elastic member 27 abuts between the second mount 26 and the first operating member 25, but it is not limited thereto; the second elastic The 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 automatically reset, the structure is simple and reasonable, and the operation is convenient and labor-saving. In this embodiment, the second elastic member 27 is preferably a spring, and the spring is compressed and abuts between the second installation seat 26 and the first operating member 25, so as to realize constant driving of the first operating member 25 to move away from the driving member. 23, the structure is simpler and more reasonable.

Please refer to Fig. 1 to Fig. 5, the first engaging portion is an engaging hole 421 opened in the second support tube 42, any engaging hole 421 is engaged with the first engaging member 21 in a mutually cooperative manner, and the structure is simple Reasonable. Preferably, in this embodiment, one end of the first engaging member 21 engaged in the engaging hole 421 has an inclined structure toward the direction close to the second support tube 42, thereby facilitating the first engaging member 21 to engage more easily. into or out of the engaging hole 421.

Please refer to Figures 4 to 7. Preferably, in this embodiment, the first mounting base 22 is provided with two mutually symmetrical positioning elongated shapes and two mutually symmetrical first engaging parts 21 for driving The member 23 is provided with two mutually symmetrical driving elongated holes 231, and the two driving elongated holes 231 are inclined in the direction away from each other along the direction from the second support tube 42 to the first support tube 41, that is, both are along the direction of the second support tube 42. The direction to the first support tube 41 is inclined away from the central axis of the first support tube 41, so that the two driving elongated holes 231 form a "eight"-shaped layout, and the linkage on each first engaging member 21 The rod 28 slides through the corresponding positioning elongated hole 221 and the driving elongated hole 231. The opposite side walls of the corresponding second support tube 42 are provided with a row of first engaging parts. The engaging parts 21 and the first engaging parts are engaged with each other. When the two first engaging parts 21 are far away from each other, the two first engaging parts 21 are all engaged in the corresponding first engaging parts. When the two first engaging parts 21 are close to each other, the two first engaging parts 21 are disengaged from the corresponding first engaging parts, so that the first support tube 41 and the second support tube 42 The connection and positioning structure is more firm and reliable, and also makes the connection and driving structure of the driving member 23 and the first engaging member 21 more reliable, but it is not limited thereto. Similarly, the second mounting base 26 is provided with two mutually symmetrical first operating parts 25, and each first operating part 25 is correspondingly abutted against a second elastic part 27, and the corresponding driving part 23 is also provided with two mutually symmetrical Each driven part 233 cooperates with a corresponding first operating part 25, the structure is better and reasonable, and the operation is more convenient for the user.

Referring to Fig. 1 to Fig. 4 and Fig. 6, in the present embodiment, the second mount 26 is also provided with an indicating assembly 10 for indicating whether the support foot 40 is used correctly, specifically, the indicating assembly 10 includes an indicating block 11 and a second Three elastic members 12, the indicating block 11 is movable on the end of the second mounting seat 26 away from the first support tube 41, the end of the second mounting seat 26 away from the first supporting tube 41 is provided with a through hole 261, and the indicating block 11 includes The first indicating part 111, the second indicating part 112 and the conflicting convex part 113 are sequentially arranged along the direction from the first support tube 41 to the second mounting seat 26. The conflicting convex part 113 slides through the through hole 261, and the conflicting convex part The portion 113 is selectively hidden in or protrudes from the through hole 261, and the side of the second mounting base 26 is provided with an indication window 262 for exposing the first indicating portion 111 or the second indicating portion 112; the conflicting convex portion 113 protrudes out The through hole 261 and the indicating window 262 expose the first indicating portion 111, indicating that the end of the second mounting base 26 away from the first support tube 41 does not touch the floor for carrying the supporting feet 40, that is, the supporting feet 40 are located in the wrong use position , the base 52 cannot be supported, and the length of the supporting leg 40 needs to be adjusted; the conflicting convex portion 113 is hidden in the through hole 261, and the indicating window 262 reveals the second indicating portion 112, indicating that the second mounting seat 26 is far away from the first The end of a support pipe 41 has touched the floor for carrying the support feet 40, and has played a supporting role for the base 52, that is, the support feet 40 are located in the correct use position, which has played a good role in indicating and reminding. For safety and convenience, and to ensure the normal use of the support feet 40 . The third elastic member 12 abuts between at least one of the second mounting base 26 and the first support tube 41 and the indicating block 11. Preferably, in this embodiment, the third elastic member 12 abuts against the second Between the mounting seat 26 and the indicating block 11, but, not limited thereto, the third elastic member 12 constantly drives the indicating block 11 to move away from the first support tube 41 to drive the conflicting convex portion 113 to protrude out of the through hole 261 so that when the second installation seat 26 is out of conflict with the floor for carrying the supporting feet 40, the third elastic member 12 drives the indicating block 11 to automatically move away from the first supporting tube 41, so as to drive the conflicting convex portion 113 to protrude through the channel. The hole 261 and the first indicating portion 111 exposed to the indicating window 262 have a more reasonable structure and are more convenient to use. Preferably, the third elastic member 12 is a spring, and the third elastic member 12 is compressively abutted between the second mounting seat 26 and the indicating block 11, so as to realize constant driving of the indicating block 11 away from the first support tube 41. direction to drive the conflicting protrusion 113 to protrude out of the through hole 261 . In order to facilitate the user's observation and make the indicating block 11 play a more obvious indicating role, the first indicating part 111 is preferably a red color block, and the second indicating part 112 is preferably a green color block. Of course, the first indicating part 111 and the The specific color block color selected for the second indication part 112 is not limited thereto, and can be flexibly selected according to actual usage conditions.

1 to 7, the working principle of the adjustment mechanism of this embodiment will be described in detail. When it is necessary to adjust the combined length of the first support tube 41 and the second support tube 42, first, press the first operating part 251 to resist The pressure overcomes the elastic force of the second elastic member 27, so that the first operating member 25 moves toward the direction close to the driven part 233, so that the driving part 252 slides against the corresponding driven part 233, thereby driving the driving part 23 to overcome the first elasticity The elastic force of the part 24 slides in the direction away from the second support tube 42, and pushes the linkage rod 28 through the elongated hole 231 on the drive part 23 to slide in the positioning elongated hole 221 to drive the first engaging part 21 to disengage. Engage with the engaged first engaging part and keep pressing on the first operating part 251, and at the same time, operate the first support tube 41 to slide relative to the second support tube 42, thereby connecting the first support tube 41 and the second support tube 42 The combined length of the second support tube 42 is adjusted to the desired length, so that the pressing on the first operating part 251 can be released, and then under the elastic force of the second elastic member 27, the first operating member 25 is automatically reset. Under the action of the elastic force of the first elastic member 24, the driving member 23 is driven to slide and reset toward the direction close to the second support tube 42, and then the elongated hole 231 is driven to push the linkage rod 28 to slide in the positioning elongated hole 221 to drive the first The engaging part 21 automatically resets and engages with the other corresponding first engaging part, so as to complete the adjustment operation of the combined length of the first support tube 41 and the second support tube 42 . When using the supporting foot 40, the supporting foot 40 is arranged along the direction of the vertical base 52 so that the supporting foot 40 can touch the floor. The indicator window 262 on the mounting base 26 reveals the second indicator portion 112 , which indicates that the support leg 40 is in a normal use position and supports the base 52 .

Please refer to Fig. 8 and Fig. 9, which show the child safety seat 200' of the second embodiment of the present invention and the adjustment mechanism (not marked in the figure) of the second embodiment of the present invention, the child safety seat 200' of this embodiment The structure of the child safety seat 200 is basically the same as that of the first embodiment, the only difference is that the support foot 40 ′ includes not only the first support tube 41 and the second support tube 42 , but also a telescopic support tube relative to the second support tube 42 . The third support tube 43 , the third support tube 43 is installed on the base 52 , so that the support leg 40 ′ is installed on the base 52 . The structure of the adjustment mechanism of this embodiment is basically the same as that of the first embodiment. 30 is set between the second support tube 42 and the third support tube 43, and is used to prohibit or allow the relative sliding between the third support tube 43 and the second support tube 42, so as to realize the adjustment of the second support tube 42 and the third support tube. The combined length of the support tube 43 . Specifically, as follows:

Please refer to Fig. 8 to Fig. 10, in this embodiment, the second support tube 42 is arranged on the third support tube 43 along the direction parallel to the third support tube 43, so as to realize the second support tube 42 and the third support tube. The tube 43 is relatively stretchable, but it is not limited thereto; preferably, in this embodiment, the second support tube 42 is slidably arranged inside the third support tube 43, and the structure is more reasonable and compact, but, and This is not the limit.

Please refer to FIG. 8 to FIG. 12 , in this embodiment, the second adjustment assembly 30 includes a second engaging member 31 and a second operating member 33 connected with the second engaging member 31 , the second operating member 33 and the second operating member 33 The engaging part 31 is movable on one of the second support tube 42 and the third support tube 43, and the other of the second support tube 42 and the third support tube 43 is provided with at least two second engaging parts (not marked in the figure), the specific number of second engaging parts can be flexibly selected according to actual use requirements, the present invention is not limited to this, the second engaging part is along the second support tube 42 and the third support tube 43 are arranged relative to the stretching direction, and preferably, the distance between two adjacent second engaging parts is equal, the structure is more reasonable, and the use is more convenient, but it is not limited thereto. Preferably, in this embodiment, the second engaging member 31 and the second operating member 33 are movable on the third support pipe 43, and the second engaging part is correspondingly arranged on the second support pipe 42, so that the structure is more reasonable and compact Of course, it is not limited thereto. In other embodiments, the second engaging member 31 and the second operating member 33 can also be movably arranged on the second support tube 42, and the second engaging part is correspondingly provided As for the third support tube 43 , it will not be repeated here. The second engaging member 31 selectively engages with any second engaging portion, and the second operating member 33 drives the second engaging member 31 to disengage from engaging with the second engaging portion. When the second engaging member 31 is engaged with any second engaging portion, the relative sliding between the second support pipe 42 and the third support pipe 43 is prohibited; when the second operating member 33 is operated to drive the second engaging When the member 31 disengages from the engaged second engaging portion, the second support tube 42 can be operated to slide relative to the third support tube 43 to combine the second support tube 42 and the third support tube 43 The length is adjusted to the required length, and then the second engaging part 31 is engaged with the other aligned second engaging part to complete the adjustment of the combined length of the second support tube 42 and the third support tube 43 operate.

Please refer to FIG. 10 to FIG. 12. In this embodiment, the second adjustment assembly 30 further includes a third mounting base 32, and the third mounting base 32 is arranged on the third support tube 43. Preferably, in this embodiment, The third installation seat 32 is sleeved on the outside of the third support tube 43, and the structure is more compact, but not limited thereto. The second engaging member 31 is movably arranged on the third mounting seat 32. Specifically, the second engaging member 31 is pivotally connected to the third mounting seat 32, so that the second engaging member 31 is movable on the third support. The structure of the tube 43 makes the installation structure of the second engaging member 31 simpler and more reasonable, but it is not limited thereto. Of course, in other embodiments, the third mounting seat 32 can also be disposed on the second support tube 42 to realize the structure of disposing the second engaging member 31 on the second support tube 42 , which will not be repeated here. Specifically, in this embodiment, one end of the second engaging member 31 has a first engaging protrusion 311 extending toward the direction close to the second support tube 42, and the first engaging protrusion 311 is selectively engaged with any first engaging member 31. two engaging parts, so as to realize the engaging between the second engaging part 31 and the second engaging part. The second operating member 33 is installed on the end of the second engaging member 31 away from the first engaging protrusion 311 , and the pivotal position between the second engaging member 31 and the third mounting seat 32 is located between the first engaging protrusion 311 and the second operating member. Between the parts 33 , the second engaging part 31 is driven to pivot by operating the second operating part 33 , and then drives the first engaging protrusion 311 to engage with or disengage from the second engaging part. Preferably, in this embodiment, the second operating member 33 and the second engaging member 31 are integrally formed, making the structure more reasonable, compact and safer. Of course, the second operating member 33 and the second locking member The specific connection structure of the assembly 31 is not limited thereto, and can also be flexibly designed according to actual usage requirements, which will not be repeated here. Preferably, in this embodiment, one end of the second engaging member 31 provided with the first engaging protrusion 311 is covered in the third installation seat 32 , and the second operating member 33 is formed with a hole exposed to the third installation seat 32 . The external second operating part (not marked in the figure) is to facilitate the operation of the second operating member 33, and the structure is more reasonable.

Please refer to Fig. 11 and Fig. 12, in this embodiment, the second adjustment assembly 30 also includes a fourth elastic member (not shown in the figure), and one end of the fourth elastic member abuts against the third support tube 43 and the third mounting tube 43. One of the seats 32, the other end of the fourth elastic member abuts against 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 to drive the second engaging member 31 An engaging protrusion 311 moves toward a corresponding second engaging portion. That is, the fourth elastic member constantly drives the second engaging member 31 to drive the first engaging protrusion 311 to move toward the direction close to the second support tube 42, so that the second engaging member 31 can drive the first engaging protrusion 311 to automatically reset The structure is more reasonable by engaging with the corresponding second engaging portion. Specifically, the fourth elastic member is a torsion spring. The middle part of the torsion spring is disposed on the third mounting seat 32 . One end of the torsion spring abuts against the third support tube 43 , and the other end of the torsion spring abuts against the second operating member 33 . In this way, the second engaging member 31 can drive the first engaging protrusion 311 to automatically reset and engage with the corresponding second engaging part. However, the specific selection type of the fourth elastic member is not limited to this, and Choose flexibly according to actual needs. The second engaging portion is an engaging hole 421 defined in the second support tube 42 , and any engaging hole 421 is engaged with the first engaging protrusion 311 in a mutually matching manner, and the structure is simpler and more reasonable. Preferably, in this embodiment, the first engaging protrusion 311 has an inclined structure toward the direction close to the second support tube 42 , so as to facilitate the first engaging protrusion 311 to engage or disengage from the engaging hole 421 more easily. Preferably, in this embodiment, a second engaging member 31 and a fourth elastic member corresponding to the second engaging member 31 and a second operating member 33 are provided on opposite sides of the third mounting base 32 , and, the two second engaging parts 31 are arranged symmetrically to each other. Correspondingly, a row of second engaging parts is provided on the opposite side walls of the second support tube 42, and the second engaging parts on the same side 31 and the second engaging portion engage with each other, so that the structure of connection and positioning between the third support tube 43 and the second support tube 42 is more firm and reliable, but it is not limited thereto. Preferably, in this embodiment, both the first engaging portion and the second engaging portion are provided in the engaging hole 421 of the second support tube 42 , and any engaging hole 421 is compatible with the first engaging protrusion 311 or the second engaging protrusion 311 . An engaging part 21 is engaged with each other. That is, 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 in the same row of engaging holes 421 located on the same row. The engaging hole 421 at different positions has a simpler and more compact structure, and reduces the processing steps, thereby reducing the processing cost. Of course, the specific arrangement structure of the first engaging part and the second engaging part is not limited to this , and can also be flexibly designed according to actual usage requirements.

In conjunction with Fig. 8 to Fig. 12, the working principle of the adjustment mechanism of this embodiment is described in detail:

Wherein, the adjustment operation of adjusting the combined length of the first support tube 41 and the second support tube 42 through the first adjustment assembly 20 is the same as the working principle in the first embodiment, so it will not be repeated here.

When it is necessary to adjust the combined length of the second support tube 42 and the third support tube 43, firstly, press the second operating part of the second operating member 33 to resist and overcome the elastic force of the fourth elastic member to drive the second engaging The member 31 pivots, and then drives the first engaging protrusion 311 to disengage from the engagement with the second engaging part, and keeps pressing the second operating part, and at the same time, operates the second support tube 42 to slide 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 the desired length, that is, the pressing on the second operating part can be released, and the second operating part is driven under the elastic force of the fourth elastic member. The member 33 is reset, and the second engaging member 31 is driven to pivot in reverse, and the first engaging protrusion 311 is reset and engaged with the other corresponding second engaging portion, so that the second support tube 42 and the second engaging portion can be completed. The adjustment operation of the combined length of the three support pipes 43.

Furthermore, in this embodiment, according to actual usage requirements, the method of adjusting the combined length of the first support tube 41 and the second support tube 42 through the first adjustment assembly 20 can also be used to adjust the length of the second support tube 42 through the second adjustment assembly 30 . The combination of one or both of the combined lengths of the two support tubes 42 and the third support tube 43 adjusts the overall length of the support leg 40 ′ to achieve multi-stage adjustment of the length of the support leg 40 ′, and makes the adjustment The operation mode is more diverse, the user can choose one to adjust the length of the support foot 40`, and in addition, the support foot 40` has a shorter length when it is shrunk to the shortest, so as to reduce the occupied space and adjust the support When the length of the foot is 40`, there are more lengths of different segments to choose from, the adaptability is stronger, and the safety of children's riding is also improved.

The present invention has been described above in conjunction with the embodiments, but the present invention is not limited to the above disclosed embodiments, but should cover various modifications and equivalent combinations made according to the essence of the present invention.

Claims (27)

1. An adjustment mechanism, installed on a support foot to adjust the length of the support foot, the support foot includes a relatively telescopic first support tube and a second support tube, it is characterized in that the adjustment mechanism includes a first An adjustment assembly, the first adjustment assembly includes two first engaging members, a driving member and a first operating member that are symmetrically arranged, and the first engaging member is movably arranged on the first support tube and the second One end of one of the support tubes, the first operating part is movably arranged on the other end of the first support tube or the second support tube having the first engaging part, and the driving part is movably arranged on the The first supporting tube or the second supporting tube of the first engaging part, the driving part is arranged between the first engaging part and the first operating part in linkage, the first supporting tube and The opposite side walls of the other one of the second support tubes are respectively provided with at least two first engaging parts, and the first engaging parts are along the direction in which the first supporting tube and the second supporting tube are relatively stretched. arrangement, the first engaging part is selectively engaged with any one of the first engaging parts, and the first operating part drives the driving part to drive the first engaging part to disengage from the first engaging part. An engagement of an engaging portion; wherein, the first engaging member on the same side is engaged with the first engaging portion in cooperation with each other. 2. The adjustment mechanism according to claim 1, characterized in that, the first adjustment assembly further comprises a first mounting seat, and the first mounting seat is provided on the first engaging member having the first engaging member. The support tube or the second support tube, the first engaging part is movably arranged on the first mounting seat. 3. The adjustment mechanism according to claim 2, wherein the first mounting seat is arranged at an end of the first support tube close to the second support tube, and the first engaging member is staggered along The first mounting seat slides in a direction in which the first support pipe and the second support pipe relatively expand and contract, and the first engaging portion is provided on the second support pipe. 4. The adjustment mechanism according to claim 3, wherein the first adjustment assembly further comprises a first elastic member, one end of the first elastic member abuts against the first support tube and the first installation At least one of the seats, the other end of the first elastic member abuts against the driving member, and the first elastic member constantly drives the driving member to drive the first engaging member toward the corresponding One of the first engaging parts moves. 5. The adjustment mechanism according to claim 4, wherein the driving member is arranged on the first support tube to slide along the sliding direction intersecting with the sliding direction of the first engaging member, and the sliding driving member The first engaging part is driven to selectively engage or disengage with any one of the first engaging parts. 6. The adjustment mechanism according to claim 5, wherein the first engaging member is provided on the first installation and slides in a direction perpendicular to the relative expansion and contraction of the first support tube and the second support tube. The seat, the driving member is provided on the first support tube and slides in a direction parallel to the relative expansion and contraction of the first support tube and the second support tube. 7. The adjustment mechanism according to claim 6, characterized in that, the first mounting seat is provided with a positioning elongated hole arranged along the sliding direction of the first engaging member, and the driving member is provided with a driving elongated hole. shaped hole, the driving elongated hole is inclined along the sliding direction of the driving part; the first engaging part is provided with a linkage rod, and the linkage rod is slidably inserted in the positioning length shaped hole and driving elongated hole, the sliding driving part makes the driving elongated hole push the linkage rod to slide in the positioning elongated hole, and the sliding linkage rod drives the The first engaging part selectively engages or disengages with any one of the first engaging parts. 8. The adjustment mechanism according to claim 7, wherein the driving elongated hole is away from the center line of the first support tube along the direction from the second support tube to the first support tube The direction is inclined; the first elastic member constantly drives the driving member to move toward the direction close to the second support tube. 9. The adjustment mechanism according to claim 6, characterized in that, the driving member also has a limiting elongated hole, the limiting elongated hole is arranged along the sliding direction of the driving member, and the first installation The seat is provided with a positioning rod, and the positioning rod is slidably inserted into the position-limiting elongated hole. 10. The adjustment mechanism according to claim 2, wherein the first adjustment assembly further comprises a second mounting seat, and the second mounting seat is provided on the first engaging member having the first engaging member. A support tube or a second support tube, the first mount is located at one end of the first support tube or the second support tube, and the second mount is located at the other end of the first support tube or the second support tube , the first operating member is movably arranged on the second mounting seat. 11. The adjustment mechanism according to claim 8, wherein the first adjustment assembly further comprises a second mounting seat, and the second mounting seat is arranged on the first support tube away from the second support At one end of the tube, the first operating member is slidably disposed on the second mounting base. 12. The adjustment mechanism according to claim 11, wherein the sliding direction of the first operating member is staggered with the sliding direction of the driving member, and an end of the first operating member far away from the driving member is formed with a The first operating part exposed to the outside of the second mounting base, the driving part is formed at one end of the first operating part close to the driving part, and the driven part is formed at one end of the driving part close to the first operating part. part, the driving part is in sliding contact with the driven part, at least one of the two surfaces of the driving part and the driven part in contact with each other is formed with a slope structure; push the first operating part toward the driving part The sliding first operating part drives the driving part to push the driven part to move, and the driven part drives the driving part to drive the first engaging part to disengage. engaging with the first engaging portion. 13. The adjustment mechanism according to claim 12, characterized in that, both surfaces of the driving part and the driven part in contact with each other are formed with the slope structure, and the slope structure extends along the second support tube to the The direction of the first support tube is inclined towards the direction away from the center line of the first support tube. 14. The adjustment mechanism according to claim 12, wherein the first adjustment assembly further comprises a second elastic member, and the second elastic member abuts against the first support tube and the second mounting seat Between one of the two and the first operating member, the second elastic member constantly drives the first operating member to move away from the driving member. 15. The adjustment mechanism according to claim 1, wherein the first engaging portion is an engaging hole opened in the second support tube, and any one of the engaging holes is compatible with the first engaging portion. The engaging parts are engaged with each other. 16. The adjustment mechanism according to claim 11, characterized in that, the second mounting seat is further provided with an indicating component, the indicating component includes an indicating block and a third elastic member, and the indicating block is movable on the The end of the second mounting seat away from the first support tube is provided with a through hole at the end of the second mounting seat away from the first support tube, and the indicator block includes The first indicating part, the second indicating part and the conflicting convex part are arranged in sequence in the direction of the seat. The conflicting convex part slides through the through hole, and the conflicting convex part is selectively hidden or protruded In the through hole, the side of the second mounting seat is provided with an indicating window for exposing the first indicating part or the second indicating part; the conflicting convex part protrudes out of the through hole, and the indicating The window reveals the first indicating part; the conflicting convex part is hidden in the through hole, then the indicating window reveals the second indicating part; the third elastic member abuts against the second mounting seat and Between at least one of the first support tubes and the indicator block, the third elastic member constantly drives the indicator block to move away from the first support tube so as to drive the conflicting protrusion to protrude out of the through hole. 17. The adjustment mechanism according to claim 16, wherein when the indicator window reveals the first indicator part, the support foot is in a wrong use position; when the indicator window reveals the second indicator , the support feet are in the correct use position. 18. The adjustment mechanism according to claim 1, characterized in that, the support foot further comprises a third support tube which is telescopic relative to the second support tube, the adjustment mechanism further comprises a second adjustment assembly, the The second adjustment assembly includes a second engaging member and a second operating member connected to the second engaging member, and the second operating member and the second engaging member are movable on the second support tube and the second operating member. One of the three support tubes, the other of the second support tube and the third support tube is provided with at least two second engaging parts, and the second engaging parts are arranged along the second supporting tube and the third supporting tube. The third support tube is arranged relative to the telescopic direction, the second engaging part is selectively engaged with any one of the second engaging parts, and the second operating part drives the second engaging part to disengage from the second engaging part. The engagement of the second engaging portion. 19. The adjustment mechanism according to claim 18, wherein the second adjustment assembly further comprises a third mounting seat, and the third mounting seat is arranged on the second support tube having the second engaging member Or the third support tube, the second engaging member is movably disposed on the third mounting seat. 20. The adjustment mechanism according to claim 19, wherein the third mounting seat is arranged on the third support tube, the second engaging member is pivotally connected to the third mounting seat, and the The second engaging portion is disposed on the second support tube. 21. The adjustment mechanism according to claim 20, wherein a first engaging protrusion extends from one end of the second engaging member toward the direction close to the second support tube, and the first engaging protrusion selectively engaged with any one of the second engaging parts. 22. The adjustment mechanism according to claim 21, wherein the second operating member is mounted on an end of the second engaging member away from the first engaging protrusion, and the second engaging member is connected to The pivotal position of the third mounting seat is located between the first engaging protrusion and the second operating member. 23. The adjustment mechanism according to claim 21, wherein the second adjustment assembly further comprises a fourth elastic member, one end of the fourth elastic member abuts against the third support tube and the third installation One of the seats, the other end of the fourth elastic member abuts against one of the second engaging member and the second operating member, and the fourth elastic member constantly drives the second engaging member The component drives the first engaging protrusion to move close to the corresponding one of the second engaging parts. 24. The adjustment mechanism according to claim 23, wherein the fourth elastic member is a torsion spring, the middle part of the torsion spring is arranged on the third mounting seat, and one end of the torsion spring abuts against In the third support tube, the other end of the torsion spring abuts against the second operating member. 25. The adjustment mechanism according to claim 21, characterized in that, the second engaging portion is an engaging hole opened in the second support tube, and any one of the engaging holes is connected with the first engaging portion. The joint protrusions are engaged with each other. 26. The adjustment mechanism according to claim 21, wherein both the first engaging portion and the second engaging portion are engaging holes opened in the second support tube, any of the engaging The hole is engaged with the first engaging protrusion or the first engaging member in mutual cooperation. 27. A child safety seat, comprising a seat group and support feet for supporting the seat group, the support feet are installed on the seat group, characterized in that the support feet are also provided with The adjustment mechanism described in any one of 1 to 26 is required.