CN111762070A

CN111762070A - Safety seat supporting leg with novel detection structure targets in place

Info

Publication number: CN111762070A
Application number: CN202010427986.6A
Authority: CN
Inventors: 林江娟; 夏环乐
Original assignee: Ningbo Welldon Baby Safety Technology Co ltd
Current assignee: Ningbo Welldon Baby Safety Technology Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-10-13
Anticipated expiration: 2040-05-20
Also published as: CN111762070B

Abstract

The invention discloses a safety seat supporting leg with a novel in-place detection structure, which comprises an upper pipe and a lower pipe, wherein the lower pipe is sleeved in the upper pipe in a sliding manner, the upper end of the upper pipe is provided with an end frame used for connecting a safety seat main body, the lower end of the upper pipe is provided with a locking structure used for limiting the telescopic length of the lower pipe, the end frame is provided with a trigger switch used for connecting a prompter externally, the upper end of the upper pipe extends into the end frame and is positioned below the trigger switch, the upper pipe is connected with the end frame through an elastic reset structure, and the elastic reset structure restrains the upper pipe from keeping a distance with the trigger switch in a normal state. Through changing the position of the trigger switch used for in-place detection in the supporting leg, the trigger switch positioned at the bottom of the lower pipe in the conventional design is shifted to the end frame at the top end of the upper pipe, so that a longer signal wire in the original design is omitted, the wire clamping problem of the original design is solved, and the cost is saved.

Description

Safety seat supporting leg with novel detection structure targets in place

Technical Field

The invention relates to the technical field of safety seats, in particular to a safety seat supporting leg with a novel in-place detection structure.

Background

The child safety seat for the vehicle is a safety device specially designed for children of different body types (or age groups), and can be installed in the vehicle to effectively improve the riding safety of the children. In the event of a car crash or sudden deceleration, the impact force on the child can be reduced and the child's body movement can be restricted to mitigate injury to them. The definitions of the european mandatory enforcement standard are: a child safety system comprising a harness assembly or flexible member with an interface, an adjustment mechanism, an accessory, etc., capable of being secured to a motor vehicle.

In the existing safety seats of partial models, a supporting leg mechanism is additionally arranged at the bottom for improving the safety, and is used for forming a supporting function between the floor in the vehicle and the safety seat. Common supporting leg mechanism includes extending structure to and be used for locking the locking structure of the form behind the extending structure is flexible, upper portion pipe and the lower part pipe of telescope structure normal use internal and external registrates, the bottom of lower part pipe sets up trigger switch, trigger switch passes through the signal line and connects reputation alarm etc. and the prompter that targets in place, when lower socle portion touches floor in the car or reaches certain threshold value to the pressure on floor in the car, trigger switch is activated, make devices such as reputation alarm give the suggestion that the supporting leg extends to target in place.

However, the applicant has found that, when the applicant tracks the use condition of the above-mentioned supporting leg design for a long time, the signal line is flexible and thin and is easy to bend and deform, when the lower pipe is operated to retract into the upper pipe, the section of the signal line in the upper pipe is easy to be clamped into a structural gap between the end parts of the upper pipe and the lower pipe, which causes unsmooth or dead clamping of the telescopic structure of the supporting leg, and therefore, a new technical breakthrough is required to be sought for the structural design of the supporting leg.

Disclosure of Invention

The invention aims to solve one of the technical problems in the related technology to a certain extent, and provides an improved supporting leg of a child safety seat for a vehicle, which solves the problem of wire clamping in the adjustment of a telescopic structure and improves the smoothness and stability of the adjustment process.

The safety seat supporting leg comprises an upper tube and a lower tube arranged in the upper tube in a sliding sleeve mode, an end frame used for being connected with a safety seat main body is installed at the upper end of the upper tube, a locking structure used for limiting the telescopic length of the lower tube is installed at the lower end of the upper tube, a trigger switch used for being connected with a reminder is installed on the end frame, the upper end of the upper tube extends into the end frame and is located below the trigger switch, the upper tube and the end frame are connected through an elastic reset structure, and the elastic reset structure restrains the upper tube and the trigger switch to keep a distance in a normal state.

Preferably, a limit hole is formed in a side wall of the upper pipe, and a limit member inserted into the limit hole is installed on the end frame to limit a moving range of the upper pipe relative to the end frame.

Preferably, the end frame includes a housing, and a fixing frame installed in the housing for connecting the safety seat main body.

Preferably, the shell is provided with a clamping groove for fixing the trigger switch, the trigger switch is fixed in the clamping groove, and the trigger end is arranged at the upper end of the upper pipe.

Preferably, the fixing frame is provided with a limiting opening opposite to the clamping groove, the upper pipe is provided with a U-shaped bayonet opposite to the trigger switch, and the trigger end of the trigger switch extends out of the limiting opening and then is arranged right above the U-shaped bayonet.

Preferably, the limiting part is a limiting screw, a threaded hole is formed in the fixing frame, and the limiting screw penetrates through the threaded hole and then is inserted into the limiting hole.

Preferably, the elastic return structure is a return spring.

Preferably, the trigger switch is a pressure relay or a pressure sensor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

The technical scheme has the following advantages or beneficial effects: the trigger switch at the bottom of the lower pipe in the conventional design is shifted to the end frame at the top end of the upper pipe by changing the position of the trigger switch for in-place detection in the supporting leg, so that a longer signal wire in the original design is directly omitted. After the lower pipe on the supporting leg is adjusted to continuously extend out and press the floor in the vehicle, the upper pipe can reversely move upwards when the supporting leg is adjusted to extend, until the trigger switch above the supporting leg is pushed to activate the upper pipe, when a user observes that the indicator gives a prompt of in-place, the supporting leg is adjusted in-place stably, the upper pipe is controlled by the elastic reset structure to keep a distance with the trigger switch on the end frame in a normal state, and the trigger switch is prevented from being activated when the lower pipe on the supporting leg is mistakenly touched or adjusted and is not extended in-place. The problem of signal line easily block in the structure gap between upper portion pipe and the lower part pipe end portion in the conventional design is solved to promote smooth and easy nature, stability and the reliability of the flexible adjustment process of supporting leg, and saved the signal line cost.

Drawings

FIG. 1 is a schematic structural view of a safety seat support leg having a novel in-position detection structure of the present invention;

FIG. 2 is a cross-sectional structural view of the support leg of the safety seat of the present invention;

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

FIG. 4 is an exploded view of the end frame of the safety seat support leg and its associated components of the present invention.

The device comprises an upper pipe 1, an upper pipe 2, a lower pipe 3, an end frame 3a, a shell 3b, a fixing frame 4, a locking structure 5, a trigger switch 6, an elastic reset structure 7, a limiting hole 8, a limiting part 9, a clamping groove 10, a limiting opening 11, a U-shaped clamping opening 12, a threaded hole 13, a first hanging groove 14 and a second hanging groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The supporting legs of the child safety seat for vehicles according to the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in figures 1-2, the invention discloses a safety seat supporting leg with a novel in-place detection structure, which comprises an upper pipe 1 and a lower pipe 2 sleeved in the upper pipe 1 in a sliding manner, wherein an end frame 3 used for connecting a safety seat main body is installed at the upper end of the upper pipe 1, a locking structure 4 used for limiting the telescopic length of the lower pipe 2 is installed at the lower end of the upper pipe 1, a trigger switch 5 used for an external connection prompter is installed on the end frame 3, the upper end of the upper pipe 1 extends into the end frame 3 and is positioned below the trigger switch 5, the upper pipe 1 and the end frame 3 are connected through an elastic reset structure 6, and the elastic reset structure 6 restrains the upper pipe 1 and the trigger switch 5 to keep a distance in a normal state.

By changing the position of the trigger switch for in-place detection in the support leg, the trigger switch 5 at the bottom of the lower tube 2 in the conventional design is shifted to the end frame 3 at the top end of the upper tube 1, and a longer signal line in the original design is directly omitted. After the lower pipe 2 on the support leg is adjusted to continuously extend out and press the floor in the vehicle, the upper pipe 1 can reversely move upwards when the support leg is adjusted to extend, until the trigger switch 5 above the top is pushed to activate the upper pipe, when a user observes that the prompter sends out the prompt of in place, the support leg is adjusted in place stably, the upper pipe 1 is controlled by the elastic reset structure to keep a distance with the trigger switch 5 on the end frame 3 in a normal state, and the trigger switch 5 is prevented from being mistakenly contacted or not extended in place when being adjusted. The problem of signal line easily block in the structural gap between upper portion pipe and the lower part pipe end portion in the conventional design is solved to promote supporting leg flexible accommodation process's smooth and easy nature, stability and reliability, and saved the signal line cost.

The locking structure 4 generally includes a height adjusting button, a locking bolt, a return spring, a corresponding height gear plate and other parts, and the height of the supporting leg is adjusted by adjusting the locking bolt to be inserted into a corresponding hole on the height gear plate. The upper end of upper portion pipe 1 can be the slip setting in end frame 3, and elasticity reset structure 6 is used for keeping the interval between elasticity restraint upper portion pipe 1 and the trigger switch 5, and when adjusting the supporting leg and stretching out to make upper portion pipe 1 shift up, elasticity reset structure 6 deformation produced the resistance, under the normality or when the supporting leg does not extend completely and targets in place, can make upper portion pipe 1 can not activate trigger switch 5.

Example two:

the basic structure of this embodiment is the same as that of the first embodiment, except that a limiting hole 7 is formed in the side wall of the upper pipe 1, and a limiting member 8 inserted into the limiting hole 7 is mounted on the end frame 3, so as to limit the moving range of the upper pipe 1 relative to the end frame 3, the limiting hole 7 may be a kidney-shaped hole, and the upper pipe is controlled to slide up and down in a smaller linear range, so as to be prevented from falling off the end frame 3.

Example three:

the basic structure of the present embodiment is the same as that of the first embodiment except that one of the structures of the end frame 3 is exemplified, and the end frame 3 may be a structure including a housing 3a and a fixing frame 3b installed in the housing 3a for connecting the safety seat main body. The fixing frame 3b is hinged to the safety seat body and combined with the shell 3a to install relevant parts and limit the sliding of the upper pipe 1. The shell 3a is used for wrapping the fixed frame 3b to improve the protection force and improve the aesthetic degree, and the inner side wall of the shell 3a can also provide a relevant part installation position.

Example four:

the basic structure of this embodiment is the same as that of the embodiment, except that one of the installation manners of the trigger switch 5 is illustrated, a clamping groove 9 for fixing the trigger switch 5 is provided on the housing 3a, the trigger switch 5 in the foregoing embodiment is fixed in the clamping groove 9, and the trigger end of the trigger switch 5 is disposed at the upper end of the upper pipe 1.

Preferably, the fixing frame 3b is provided with a limiting opening 10 opposite to the clamping groove 9, the upper pipe 1 is provided with a U-shaped bayonet 11 opposite to the trigger switch 5, and the trigger end of the trigger switch 5 extends out of the limiting opening 10 and then is arranged right above the U-shaped bayonet 11.

Example five:

the basic structure of this embodiment is the same as that of the embodiment, and the difference is that the limiting member 8 is preferably a limiting screw, the fixing frame 3b is provided with a threaded hole 12 matched with the limiting screw, the limiting screw is detachably screwed in the threaded hole 12, and the limiting screw passes through the threaded hole 12 and then is inserted into the limiting hole 7, so as to limit the range in which the upper pipe 1 can slide up and down.

Example six:

the basic structure of this embodiment is the same as that of the first embodiment, except that the elastic restoring structure 6 is preferably a restoring spring, the edge of the upper end port of the upper tube 1 is provided with a first hanging groove 13, the edge of the lower end of the end frame 3 is provided with a second hanging groove 14, one end of the restoring spring is hooked on the first hanging groove 13 of the upper tube, and the other end is hooked on the second hanging groove 14 of the end frame, so as to realize the elastic constraint of the upper tube relative to the end frame.

Example seven:

the basic structure of the present embodiment is the same as that of the first embodiment, except that the trigger switch 5 is specifically exemplified, and the trigger switch 5 may be a relay or a switch with other structural forms, and is used to activate the relay to conduct when the upper pipe 1 moves to the position, so that the externally connected prompter gives the indication of the position in the form of sound and light, etc.

It should be noted that, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above-described terms are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

Claims

1. The utility model provides a safety seat supporting leg with novel detection structure that targets in place, locate including upper portion pipe (1) and sliding sleeve lower part pipe (2) in upper portion pipe (1), tip frame (3) that are used for connecting the safety seat main part are installed to the upper end of upper portion pipe (1), locking structure (4) that are used for injecing the flexible length of lower part pipe (2), its characterized in that are installed to the lower extreme of upper portion pipe (1): the alarm device is characterized in that a trigger switch (5) used for being connected with a reminder is installed on the end part frame (3), the upper end of the upper pipe (1) extends into the end part frame (3) and is located below the trigger switch (5), the upper pipe (1) and the end part frame (3) are connected through an elastic reset structure (6), and the elastic reset structure (6) restrains the upper pipe (1) and the trigger switch (5) from keeping a distance in a normal state.

2. The safety seat support leg of claim 1, wherein: be equipped with spacing hole (7) on the lateral wall of upper portion pipe (1), install on tip frame (3) and insert spacing locating part (8) in hole (7) for the restriction the range of motion of upper portion pipe (1) for tip frame (3).

3. A safety seat support leg according to claim 1 or 2, wherein: the end frame (3) comprises a shell (3a) and a fixed frame (3b) which is arranged in the shell (3a) and is used for connecting a safety seat main body.

4. The safety seat support leg of claim 3, wherein: the shell (3a) is provided with a clamping groove (9) for fixing the trigger switch (5), the trigger switch (5) is fixed in the clamping groove (9), and the trigger end is arranged at the upper end of the upper pipe (1).

5. The safety seat support leg of claim 4, wherein: the device is characterized in that a limiting opening (10) opposite to the clamping groove (9) is formed in the fixing frame (3b), a U-shaped bayonet (11) opposite to the trigger switch (5) is formed in the upper portion tube (1), and the trigger end of the trigger switch (5) stretches out of the limiting opening (10) and then is arranged right above the U-shaped bayonet (11).

6. The safety seat support leg of claim 3, wherein: the limiting piece (8) is a limiting screw, a threaded hole (12) is formed in the fixing frame (3b), and the limiting screw penetrates through the threaded hole (12) and then is inserted into the limiting hole (7).

7. The safety seat support leg of claim 1, wherein: the elastic reset structure (6) is a reset spring.

8. A safety seat support leg according to any one of claims 1 to 7, wherein: the trigger switch (5) is a pressure relay or a pressure sensor.