阅读说明：本技术 一种支撑腿及儿童安全座椅 (Supporting leg and child safety seat ) 是由 张有才 黄富阁 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种支撑腿及儿童安全座椅,支撑腿包括外管、能够沿上下方向滑动地设置在外管内的内管和用于将外管和内管的相对位置锁定的锁定装置,锁定装置包括活动设置在外管上的锁定件,当锁定装置处于锁定状态时,锁定件与内管的外侧壁相抵设配合,当锁定装置处于解锁状态时,锁定件与内管的外侧壁之间的配合脱开。该支撑腿的外管和内管相对滑动到任意位置处时,均可使锁定件与内管的外侧壁相抵设配合,即支撑腿在内管和外管相对滑动方向上的任意长度位置处均可通过锁定装置进行锁定,这使得支撑腿的长度可实现无级调节,使得该儿童安全座椅的适用性更广,方便儿童安全座椅的使用。(The invention discloses a supporting leg and a child safety seat, wherein the supporting leg comprises an outer tube, an inner tube which can be arranged in the outer tube in a sliding manner along the up-down direction, and a locking device for locking the relative position of the outer tube and the inner tube, wherein the locking device comprises a locking piece which is movably arranged on the outer tube, when the locking device is in a locking state, the locking piece is abutted against and matched with the outer side wall of the inner tube, and when the locking device is in an unlocking state, the locking piece is disengaged from the outer side wall of the inner tube. When the outer tube and the inner tube of this supporting leg relatively slid to arbitrary position department, all can make the locking piece offset with the lateral wall of inner tube and establish the cooperation, the supporting leg is all can be locked through locking device in the arbitrary length position department of inner tube and outer tube relative slip orientation promptly, and this makes the length of supporting leg can realize infinitely variable control for this children's safety seat's suitability is wider, makes things convenient for children's safety seat's use.)

1. A support leg comprising an outer tube, an inner tube slidably provided in the outer tube in an up-down direction, and a locking device for locking relative positions of the outer tube and the inner tube, characterized in that: the locking device comprises a locking piece movably arranged on the outer pipe, when the locking device is in a locking state, the locking piece is abutted against the outer side wall of the inner pipe to be matched, and when the locking device is in an unlocking state, the locking piece is disengaged from the outer side wall of the inner pipe in a matching manner.

2. The support leg according to claim 1, wherein: the locking piece is sleeved outside the inner tube through a central hole formed in the locking piece, when the locking device is in a locking state, at least part of the inner side wall of the central hole is abutted against and matched with the outer side wall of the inner tube, and when the locking device is in an unlocking state, gaps are formed between all the inner side walls of the central hole and the outer side wall of the inner tube.

3. The support leg according to claim 2, wherein: the locking piece can be arranged in a swinging mode relative to the outer pipe and the inner pipe, when the locking device is in a locking state, the central axis of the inner pipe is obliquely intersected with the central axis of the central hole, and when the locking device is in an unlocking state, the central axis of the inner pipe and the central axis of the central hole extend along the same straight line direction.

4. The support leg according to claim 2, wherein: the upper end portion and the lower end portion of the inner side wall of the central hole are provided with a first side portion and a second side portion which are arranged oppositely, when the locking device is in a locking state, the first side portion of the upper end portion abuts against a first position of the outer side wall of the inner tube, a gap is formed between the second side portion of the upper end portion and the outer side wall of the inner tube, a gap is formed between the first side portion of the lower end portion and the outer side wall of the inner tube, and the second side portion of the lower end portion abuts against a second position of the outer side wall of the inner tube.

5. The support leg according to claim 1, wherein: the locking device further comprises an elastic piece used for providing elastic force for enabling the locking piece to be abutted against and matched with the outer side wall of the inner pipe, and two end parts of the elastic piece are respectively arranged on the outer pipe and the locking piece.

6. The support leg according to claim 1, wherein: the locking device is characterized in that a matching part is arranged on the outer pipe, when the locking device is in a locking state, the matching part is abutted to the locking piece to be matched, and when the outer pipe is stressed, the locking piece is abutted to the inner pipe to increase abutting force.

7. The support leg according to claim 6, wherein: the locking device further comprises an elastic piece used for providing elastic force for enabling the locking piece to be abutted against the outer side wall of the inner tube to establish matching, the elastic piece and the matching portion are respectively abutted against the upper end face and the lower end face of the locking piece, and the matching portion and the elastic piece are respectively located on two opposite sides of the locking piece.

8. The support leg according to claim 1, wherein: the supporting leg is still including being used for ordering about locking device is from the unlocking device of unblock under the locking state, unlocking device is including setting up with sliding unlocking piece on the outer tube, unlocking piece with the cooperation is established in the locking piece counterbalance.

9. The support leg according to claim 8, wherein: the locking device further comprises an elastic piece used for providing a force to enable the locking piece to be abutted to the outer side wall of the inner tube to establish a matched elastic force, the elastic piece and the unlocking piece are respectively abutted to be arranged on the upper end face and the lower end face of the locking piece, and the elastic piece and the unlocking piece are located on the same side of the locking piece.

10. A child safety seat, characterized by: the support leg of any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of children products, in particular to a supporting leg and a child safety seat.

Background

To ensure the safety of a child riding in a vehicle, children are recommended to use child safety restraint devices while riding in the vehicle. Currently, the main child safety restraint devices are child safety seats for securing to vehicles, and there are various types of child safety seats, such as infant seats, infant carriers, and child safety seats, depending on the age of the child seated therein and the manner of use. For a long time, various types of child safety seats are usually provided with supporting legs connected to a seat body of the child safety seat to play a supporting role, so that the child safety seat is prevented from falling or toppling over in the driving process.

At present, the supporting legs that set up among the child safety seat mostly adopt extending structure to can adjust the length of supporting leg, in order being applicable to the vehicle of difference. In order to fix the telescopic support leg at a certain length, the length of the support leg is usually locked by a locking device.

In the prior art, a locking device is generally that a lock pin is movably arranged on one leg constituting a supporting leg, a lock hole is arranged on the other leg constituting the supporting leg, when the lock pin is inserted into the lock hole, the length of the supporting leg is fixed, and when the lock pin is disengaged from the lock hole, the length of the supporting leg can be adjusted. In the locking device, although a plurality of locking holes can be arranged, the supporting legs can be locked at a plurality of length positions, but the supporting legs can only be locked at the positions where the locking holes are arranged, namely, the length of the supporting legs can only be adjusted in a limited mode, the length of the supporting legs cannot be adjusted in a stepless mode, and the use of the child safety seat is inconvenient.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a supporting leg, and the length of the supporting leg can be adjusted in a stepless manner.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a supporting leg, includes the outer tube, can set up with sliding along upper and lower direction inner tube in the outer tube and be used for with the outer tube with the locking device of the relative position locking of inner tube, locking device is including the activity setting locking piece on the outer tube, works as locking device is in the locking state, the locking piece with the lateral wall of inner tube offsets and establishes the cooperation, works as when locking device is in the unblock state, the locking piece with cooperation between the lateral wall of inner tube is disengaged.

Preferably, the locking member is sleeved outside the inner tube through a central hole formed in the locking member, when the locking device is in a locked state, at least part of the inner side wall of the central hole is abutted against and matched with the outer side wall of the inner tube, and when the locking device is in an unlocked state, gaps are formed between all the inner side walls of the central hole and the outer side wall of the inner tube.

Further, the locking member is swingably provided with respect to the outer tube and the inner tube, the center axis of the inner tube obliquely intersects the center axis of the center hole when the locking device is in the locked state, and the center axis of the inner tube and the center axis of the center hole extend in the same linear direction when the locking device is in the unlocked state.

Further, the upper end portion and the lower end portion of the inner side wall of the central hole are provided with a first side portion and a second side portion which are arranged oppositely, when the locking device is in a locking state, the first side portion of the upper end portion abuts against the first position of the outer side wall of the inner tube, a gap is formed between the second side portion of the upper end portion and the outer side wall of the inner tube, a gap is formed between the first side portion of the lower end portion and the outer side wall of the inner tube, and the second side portion of the lower end portion abuts against the second position of the outer side wall of the inner tube.

Preferably, the locking device further comprises an elastic member for providing an elastic force for enabling the locking member to be in abutting fit with the outer side wall of the inner tube, and two end portions of the elastic member are respectively arranged on the outer tube and the locking member.

Preferably, the outer tube is provided with a matching part, when the locking device is in a locking state, the matching part is abutted to the locking piece to form matching, and when the outer tube is stressed, the abutting force of the locking piece on the inner tube is increased.

Furthermore, the locking device further comprises an elastic piece for providing elastic force for enabling the locking piece to be abutted against the outer side wall of the inner tube for matching, the elastic piece and the matching part are respectively abutted against the upper end face and the lower end face of the locking piece, and the matching part and the elastic piece are respectively positioned on two opposite sides of the locking piece.

Preferably, the supporting leg still includes and is used for driving about the unlocking device of locking device unblock under the locking state, unlocking device is including setting up with sliding the unlocking piece on the outer tube, unlocking piece with the cooperation is established to the locking piece counterbalance.

Further, locking device is still including being used for providing the messenger the locking piece with the lateral wall of inner tube offsets the elastic component who establishes the complex elastic force, the elastic component with the piece of deblocking supports respectively and establishes on the upper and lower both ends face of locking piece, just the elastic component with the piece of deblocking is located same one side of locking piece.

The invention also provides a child safety seat having a support leg as claimed in any one of the preceding claims.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the supporting leg locks the relative position of the inner tube and the outer tube through the locking piece, when the supporting leg is locked, the locking piece is only required to be abutted against and matched with the outer side wall of the inner tube, and when the outer tube and the inner tube slide to any position relatively, the locking piece can be abutted against and matched with the outer side wall of the inner tube, namely, the supporting leg can be locked at any length position in the relative sliding direction of the inner tube and the outer tube through the locking device, so that the length of the supporting leg can be adjusted in a stepless mode, the applicability of the child safety seat is wider, and the child safety seat is convenient to use.

Drawings

FIG. 1 is a schematic structural view of the support leg of the present embodiment (with the locking device in a locked state);

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 (with the locking device in a locked condition);

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic structural view of the support leg of the present embodiment (with the locking device in an unlocked state);

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 4 (with the locking device in an unlocked state);

fig. 6 is a partially enlarged view of a portion a of fig. 5.

Wherein: 1. an outer tube; 11. a fixed seat; 111. a limiting part; 12. a fitting portion; 2. an inner tube; 3. a locking member; 31. a central bore; 311. a first side of the upper end; 312. a second side of the upper end; 313. a first side portion of the lower end portion; 314. a second side portion of the lower end portion; 4. an elastic member; 5. unlocking the lock.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

Child safety seats typically include a seat body and support legs disposed at the bottom of the seat body.

As shown in fig. 1 to 6, the support leg of the present invention includes an outer tube 1 and an inner tube 2 both extending in an up-down direction, the outer tube 1 having a lumen extending in a lengthwise direction thereof, the inner tube 2 being partially located in the lumen of the outer tube 1 and slidably disposed in the lengthwise extending direction of the lumen. The upper end of one of the two parts of the outer tube 1 and the inner tube 2 is connected to the bottom of the seat body 1, and the lower end of the other part is abutted against the bottom plate of the automobile when in use.

The support leg further includes a locking device having a locked and unlocked state. When the locking device is in a locked state, the relative positions of the outer tube 1 and the inner tube 2 are fixed and cannot slide relative to each other, i.e. the supporting legs are fixed at a certain length. When the locking device is in an unlocked state, the outer pipe 1 and the inner pipe 2 can slide relatively, so that the length of the supporting leg is adjusted.

The locking device comprises a locking member 3, which locking member 3 is movably arranged on the outer tube 1 and can be engaged with or disengaged from the inner tube 2.

When the locking device is in a locking state, the locking piece 3 is abutted against and matched with the outer side wall of the inner pipe 2; when the locking device is in the unlocked state, the engagement between the outer side wall of the inner tube 2 and the locking element 3 is disengaged. This locking device is when arbitrary position department is slided relatively to outer tube 1 and inner tube 2 when unblock state, all can make locking piece 3 and the lateral wall of inner tube 2 offset and establish, can be through the relative position locking of locking device with outer tube 1 and inner tube 2, that is to say, the supporting leg all can be locked through locking device in the arbitrary length position department of inner tube 2 and the relative slip of outer tube 1 side, this makes the length of supporting leg can realize infinitely variable control, make this children's safety seat's suitability wider, make things convenient for children's safety seat's use.

In this embodiment, the outer tube 1 is fixedly provided with a fixing seat 11, and the locking member 3 is movably disposed in the fixing seat 11. The fixing base 11 is disposed on the limiting portion 111, and a side portion of the locking member 3 abuts against the limiting portion 111.

Specifically, a central hole 31 is formed in the central position of the locking member 3, the central hole 31 is matched with the outer peripheral surface of the inner tube 2, and the locking member 3 is sleeved outside the inner tube 2 through the central hole 31.

When the locking means is in the locked state, at least part of the inner side wall of the central hole 31 is in abutting engagement with the outer side wall of the inner tube 2. When the locking device is in the unlocked state, there is a gap between all the inner side walls of the central hole 31 and the outer side walls of the inner tube 2.

In the present embodiment, the locking member 3 is swingably provided with respect to the outer tube 1 and the inner tube 2, and when the locking device is in the locked state, the central axis a of the central hole 31 and the central axis B of the inner tube 2 intersect obliquely, so that a partial region on the inner side wall of the central hole 31 is brought into abutting engagement with the outer side wall of the inner tube 2.

The method specifically comprises the following steps: the upper end portion and the lower end portion of the inner side wall of the central hole 31 each have a first side portion and a second side portion which are disposed oppositely. When the locking device is in the locked state, the first side 311 of the upper end portion abuts against the outer side wall of the inner tube 2 at the first position, and the second side 312 of the upper end portion has a gap with the outer side wall of the inner tube 2. The first side 313 of the lower end part has a gap with the outer side wall of the inner tube 2, and the second side 314 of the lower end part abuts against the outer side wall of the inner tube 2 at a second position, the first position and the second position are not fixed positions on the inner tube 2, but the distance between the first position and the second position is fixed, and the first position and the second position are respectively located at two opposite sides of the inner tube 2, namely the first position and the second position are relatively fixed.

Preferably, when the locking device is in the locking state, the portion where the inner sidewall of the central hole 31 is abutted and matched with the outer sidewall of the inner tube 2 is in arc surface fit.

In this way, the inner tube 2 can be clasped by the locking member 3, so that the locking device is in a stable locked state, so that relative sliding between the outer tube 1 and the inner tube 2 is not possible.

And when the locking device is in the unlocked state, the central axis B of the inner tube 2 extends in the same linear direction as the central axis a of the central hole 31. Thus, the inner side wall of the central hole 31 and the outer side wall of the inner pipe 2 are in a parallel state with a gap therebetween, so that the outer pipe 1 and the inner pipe 2 can freely slide relative to each other to adjust the length of the support leg.

The locking device further comprises an elastic element 4, and the elastic force of the elastic element 4 is used for driving the locking element 3 to abut against and be matched with the inner pipe 2. Both end portions of the elastic member 4 are provided on the outer tube 1 and the locking member 3, respectively. The elastic member 4 may be a spring.

The elastic member 4 and the limiting portion 111 are both located above or below the locking member 3, and the elastic member 4 and the limiting portion 111 are respectively abutted to two opposite sides of the locking member 3.

The supporting leg is still including being used for driving locking device from the unlocking device of unblock under the locking state, and is specific, and unlocking device is including can setting up the unlocking piece 5 on outer tube 1 with sliding, and unlocking piece 5 offsets with locking piece 3 and establishes the cooperation. In this embodiment, the unlocking member 5 is slidably provided on the fixing base 11.

When the locking device is in a locking state, the unlocking piece 5 is operated to slide relative to the fixed seat 11, the locking piece 3 can be driven to swing relative to the outer tube 1 and the inner tube 2 through the abutting fit of the unlocking piece 5 and the locking piece 3 until the central axis of the inner tube 2 and the central axis of the central hole 31 extend along the same linear direction, and the locking device is unlocked.

In this embodiment, the elastic member 4 and the unlocking member 5 are respectively abutted on the upper and lower end faces of the locking member 3, and the elastic member 4 and the unlocking member 5 are both located on the same side of the locking member 3.

In this embodiment, when the child safety seat is used, the upper end of the inner tube 2 is connected to the seat body, and the lower end of the outer tube 1 abuts against the floor of the automobile. The fixing seat 11 is arranged at the upper end of the outer tube 1, the upper end of the outer tube 1 is further provided with a matching part 12, and when the locking device is in a locking state, the matching part 12 is abutted to the locking piece 3 to be matched. The elastic member 4 and the matching portion 12 are respectively abutted against the upper end face and the lower end face of the locking member 3, and the matching portion 12 and the elastic member 4 are respectively located on two opposite sides of the locking member 3.

At this moment, when the outer tube 1 is stressed, the abutting force of the locking piece 3 abutting on the outer side wall of the inner tube 2 is increased, so that the locking piece 3 can be held more tightly with the inner tube 2, and the locking device is in a more stable locking state.

When the child safety seat is installed on the automobile seat for use, the seat body is placed on the automobile seat and connected with the automobile seat, the unlocking piece 5 is operated to enable the seat body to slide relative to the outer tube 1, when the unlocking piece 5 slides, the locking piece 3 is driven to swing relative to the outer tube 1 and the inner tube 2 to the first direction, the locking piece 3 is enabled to be gradually disengaged from abutting against the inner tube 2 to be matched, until the central axis B of the inner tube 2 and the central axis A of the central hole 31 extend along the same linear direction, at the moment, the locking piece 3 is completely disengaged from the inner tube 2 to be locked, and the locking device is unlocked, as shown in fig. 4-6.

At this time, the outer tube 1 can be slid downward relative to the inner tube 2 to adjust the length of the support leg until the lower end of the outer tube 1 abuts against the vehicle floor.

In the process of unlocking the locking device, the elastic part 4 is compressed or stretched to deform, after the length of the supporting leg is adjusted to the right position, the unlocking part 5 is released, the elastic force generated by the elastic part 4 recovering the elastic deformation drives the locking part 3 to swing towards the second direction relative to the outer pipe 1 and the inner pipe 2, the second direction is opposite to the first direction, when the locking part 3 swings towards the second direction, the unlocking part 5 is driven to reversely slide and reset, until the inner side wall of the central hole 31 of the locking part 3 abuts against and is matched with the outer side wall of the inner pipe 2 again, the locking device locks again, at the moment, the central axis A of the central hole 31 of the locking part 3 is obliquely intersected with the central axis B of the inner pipe 2, and the unlocking part 5 reversely slides to the initial position, as shown in fig. 1-3.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.