CN214355654U - Fastening device, chair back and child safety seat - Google Patents

Abstract

The utility model discloses a fastener, the back of the chair and children's safety seat, including locking subassembly and driving piece, the driving piece pass through the movable block and connect the locking subassembly, the movable block receives the effort of driving piece, the direction of movable block switching force is exerted for the locking subassembly. Including back of the chair body and flank, the flank include slidable mounting at this internal back of the chair, the flank is provided with fastener, but fastener's locking subassembly lock solid perhaps unblock back and back of the chair body, the driving piece sets up in back of the chair body or flank. The locking assembly has the characteristics of high operation reliability and stable movement of the locking assembly.

Description

Fastening device, chair back and child safety seat

Technical Field

The utility model belongs to the technical field of car safety seat and specifically relates to a fastener, back of the chair and children's safety seat are related to.

Background

A child safety seat for an automobile is specially designed for children of different ages or body types, is installed in the automobile and can effectively improve the riding safety of the children. In the event of a collision or sudden deceleration of the vehicle, the impact force on the child may be reduced and the child's body movement may be restricted to reduce the harm to them.

Children are in a long-body stage every day, and as the body grows, the original size of the safety seat will not suffice. However, the width of the side wings of most child safety seats cannot be adjusted, and the child safety seats must be replaced by new ones to meet the requirements of safety and comfort of children taking a car, so that the practical value of the child safety seats is greatly reduced, and waste is caused.

In the prior art, the side wings are usually adjustable by adopting a connection mode of meshing a rack and a gear. For example, the patent of the Chinese utility model, a child safety seat with adjustable side wings, applies for (patent): CN201420540289.1, it includes back main part, base main part, left flank and right flank, back main part and back between the lid elastic fit set up control knob, control knob include gear portion and knob portion, the upside of control knob gear portion and the left rack meshing that sets up on the left flank, the downside of control knob gear portion and the right rack meshing that sets up on the right flank. Foretell children's safety seat of adjustable flank in area, back main part both sides set up left flank and the right flank that can adjust, but realize adjusting through rack and gear cooperation, at the accommodation process of product flank, shake about can appearing, and user experience feels not good.

In order to solve the problems, the inventor designs a child safety seat and a side wing width adjusting mechanism thereof, and applies for (patents): CN201922301406.4, two opposite side edges of the chair back are provided with side wings. The side wings comprise side wing bodies and inserting plates which are vertically arranged, the chair back is provided with inserting grooves, and the inserting plates are in sliding fit in the inserting grooves; the driving component is arranged on the side wing body. The limiting assembly comprises a limiting block arranged on the chair back and a limiting shaft arranged on the side wing in a sliding manner, and a plurality of limiting holes are formed in the limiting block along the horizontal direction; the driving assembly is used for driving the limiting shaft to move and switch among the limiting holes, and width adjustment of the side wings is achieved.

The structure can solve the problem of up-and-down shaking generated when the side wing slides, the sliding of the side wing is realized by the slot and the plugboard, the sliding process of the side wing is smooth, and the side wing and the chair back are locked by the limiting shaft, so that the stability is realized. The side wings need to slide in the left-right direction, so that the limiting shafts are correspondingly arranged to be locked and locked from the upper part and the lower part of the side wings. The structure is provided with a driving block which is flexibly connected with a limiting shaft through a guy cable. In order to realize that the driving block can drive the movement of the two limiting shafts simultaneously, the driving block is arranged in the middle of the sides of the two limiting shafts. This also defines the cable structure inside as a curved arrangement. The inhaul cable is used as a soft material piece, and cannot be bent to transmit stress after being stressed. In the process that the driving block drives the inhaul cable, the inhaul cable can interact with the chair back, interference is easy to generate, and reliability is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a fastener, the back of the chair and children's safety seat are provided, have the operational reliability height, the stable characteristics of locking Assembly activity.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the fastening device comprises a locking assembly and a driving piece, the driving piece is connected with the locking assembly through a moving block, the moving block is subjected to acting force of the driving piece, and the moving block converts the direction of the acting force and applies the acting force to the locking assembly.

The back of the chair, including back of the chair body and flank, the flank including slidable mounting at this internal back of the chair, the flank is provided with fastener, but fastener's locking subassembly lock solid perhaps unblock back and back of the chair body, the driving piece sets up in back of the chair body or flank.

Compared with the prior art, the utility model has the advantages of, set up the movable block, the driving piece changes a connection locking subassembly through the direction. When the driving piece can not be directly arranged along the movement direction of the locking assembly, structures such as a guy cable made of soft materials are arranged, the guy cable needs to be arranged in a bent mode, and the mutual interference with the installation environment of the guy cable is inevitable during driving. The utility model discloses a set up the movable block, change the application of force direction of driving piece, convert the power of the new direction that can drive the work of locking subassembly into. Therefore, the locking component can be driven to work without obstruction and interference, and the back and the chair back component can be switched into a locking state or an unlocking slidable state. Compared with the structure setting of cable among the prior art, the utility model discloses a driving piece control locking subassembly's reliability is higher, and the activity of locking the subassembly is more stable.

The utility model discloses further preferred scheme: the locking assembly comprises a plurality of locking pieces, and the locking pieces are connected with the moving block. The moving part moves to drive the locking part connected with the moving part to move synchronously. The utility model discloses a moving part drives a plurality of locking pieces work simultaneously, realizes that the back is simple quick with back of the chair body lock solid or unblock.

Preferably, the locking assembly comprises two locking pieces, and the two locking pieces are used for locking the back part in the chair back body from the upper part and the lower part of the back part respectively.

Further preferably, two locking members are vertically installed in the back portion, ends of the locking members may protrude from an upper surface or a lower surface of the back portion, and the protruding locking member ends are embedded in the seat back body.

Preferably, the locking member of the present invention is a latch. The lock has the advantages that the lock is simple in structure and mature in technology, and the locking between the back and the chair seat body can be realized.

Further, the utility model discloses a movable block is the fly leaf, the driving piece can drive and remove about the fly leaf. Based on the optimal position of the driving piece being the outer side surface of the side wing, the movable plate is positioned in the chair back, and a displacement difference in the left-right direction exists between the movable plate and the chair back. It is therefore preferable to arrange the moving block on the same level as the drive member, which can apply a force to the moving block in the left-right direction.

Further, the driving part can be connected with the moving block through structures such as a pull rope and a connecting rod, and the driving part applies force to the moving block in the left-right direction through the structures such as the pull rope and the connecting rod.

Furthermore, a limiting piece is arranged on the chair back and limits the moving block to move along the left-right direction.

Furthermore, the limiting part forms a frame structure, the moving block is surrounded in the frame structure, and the limiting part limits the displacement of the moving block in the up-down direction, so that the moving block can only move in the left-right direction.

Furthermore, the limiting part is further provided with a buckle structure, and the buckle structure acts on the surface of the moving block to prevent the moving block from generating displacement in the front direction.

The locking piece is preferably vertically arranged on the back part, and the locking piece can realize locking or unlocking between the back part and the seat body by moving up and down. Preferably, the moving block is arranged right below the locking piece, and the moving block can drive the locking piece to move up and down.

Furthermore, a waist-shaped hole is formed in the moving block, and the waist-shaped hole is obliquely arranged. The moving block drives the locking piece to move up and down by the left and right displacement of the moving block through the waist-shaped hole. Namely, the locking piece is driven to move up and down by the moving block moving leftwards and rightwards.

Furthermore, a channel is arranged in the back and vertically arranged, and the channel penetrates through the upper surface or the lower surface of the back.

Furthermore, the locking piece is arranged in the channel, and the locking piece can move up and down in the channel. The utility model discloses a set up the passageway at the back and be used for installing the locking piece. The back removes and drives locking piece synchronous movement, when the locking piece stretches out the back and uses the back of the chair body, has restricted through its self stress that the relative displacement of taking place left right direction between back and the back of the chair, can't adjust the distance between two flanks, and the flank is fixed at the back of the chair.

Furthermore, the first end of the locking piece is a mounting end, the mounting end is positioned in the waist-shaped hole and can move in the waist-shaped hole, and the displacement of the locking piece is adjusted through the movement of the safety end in the waist-shaped hole. The second end of the locking piece is a free end, and the free end can be connected with the back and the chair back body.

Furthermore, the movable block moving left and right drives the locking piece to move up and down through the waist-shaped hole. The waist-shaped hole structure is obliquely arranged, so that the direction of force can be changed, and the method is simple to process and low in cost. Is the preferred proposal of the utility model.

Furthermore, the chair back body still includes a plurality of blend stops, the blend stop be located the top or the below of backplate, the blend stop has restricted the backplate and has not produced the displacement in upper and lower direction. The utility model discloses a blend stop has a guide effect to the flank for the flank is adjusting the removal in-process, and is more stable.

Furthermore, a plurality of insertion holes are formed in the barrier strip, and the locking piece can extend into the insertion holes. When the locking piece is inserted into the insertion hole, the side wings and the seat body are fixed.

Further, the plurality of jacks are regularly arranged. Inserting the locking element into the different receptacles will determine the distance between the two side wings, which is suitable for seating children of different sizes.

The child seat comprises the seat back, a headrest and a seat.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of a chair back according to the present invention;

FIG. 2 is a schematic view of the inner structure of the chair back of the present invention;

FIG. 3 is a schematic view of an exploded structure of the chair back of the present invention;

fig. 4 is a schematic structural view of the child seat of the present invention.

Wherein the reference numerals are specified as follows: 1. a chair back body; 2. a side wing; 2a, a back; 3. a drive member; 4. a moving block; 5. a waist-shaped hole; 6. a locking member; 6a, a mounting end; 6b, a free end; 7. a limiting member; 8. a channel; 9. blocking strips; 10. a headrest; 11. a chair seat.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 and 2: the fastening device comprises a locking assembly and a driving part, the driving part 3 is connected with the locking assembly through a moving block 4, the moving block 4 is subjected to acting force of the driving part 3, and the moving block 4 converts the direction of the acting force and applies the acting force to the locking assembly.

The back of the chair, including back of the chair body 1 and flank 2, flank 2 including slidable mounting at back of the chair body 1 back 2a, flank 2 is provided with fastener, but fastener's locking subassembly lock solid perhaps unblock back 2a and back of the chair body 1, driving piece 3 sets up in back of the chair body 1 or flank 2.

The chair back body 1 is provided with two side wings at one left side and one right side. Under normal conditions, the connecting structures between the two side wings 2 and the chair back body 1 are symmetrically arranged. For the convenience of clarity and non-redundant description, the present invention is described only with respect to the connecting structure of the chair back body 1 and one of the side wings 2.

The moving block 4 moving left and right can drive the locking assembly to move up and down.

The moving block 4 is provided with a waist-shaped hole 5, the waist-shaped hole 5 is obliquely arranged, and the moving block 4 drives the locking piece 6 to move through the waist-shaped hole 5.

The moving block 4 will pass through the waist-shaped hole 5, and the left and right displacement of the moving block drives the locking piece 6 to move up and down. Namely, the locking piece 6 is driven by the moving block 4 moving left and right to move up and down.

As shown in fig. 3, the locking assembly includes a plurality of locking members 6, the locking members 6 being vertically disposed within the back portion 2 a. The moving part moves to drive the locking part 6 connected with the moving part to move synchronously. The utility model discloses a moving part drives 6 work of a plurality of locking pieces simultaneously, realizes that back 2a is simple quick with back of the chair body 1 lock solid or unblock.

Preferably, the locking assembly includes two locking pieces 6, and the two locking pieces 6 respectively lock the back 2a in the seat back body 1 from above and below the back 2 a.

Further preferably, two locking pieces 6 are vertically installed in the back part 2a, ends of the locking pieces 6 may protrude from an upper surface or a lower surface of the back part 2a, and the protruding locking pieces 6 are embedded in the seat back body 1.

Preferably, the locking member 6 of the present invention is a latch. The locking between the back part 2a and the chair seat 11 body can be realized for the functional element with simple structure and mature technology. The first end of the locking piece 6 is a mounting end 6a, the mounting end 6a is positioned in the waist-shaped hole 5, the second end of the locking piece 6 is a free end 6b, and the free end 6b can be connected with the back 2a and the chair back body 1.

The moving block 4 is a movable plate, and the driving piece 3 can drive the movable plate to move left and right.

The chair back is provided with a limiting piece 7, and the limiting piece 7 limits the moving block 4 not to generate displacement in the up-down direction. The stopper 7 constitutes a frame structure that surrounds the moving block 4 therein, and the stopper 7 restricts the movement of the moving block 4 in the up-down direction.

The limiting part 7 is further provided with a buckling structure, and the buckling structure acts on the surface of the moving block 4 to prevent the moving block 4 from generating displacement in the front direction.

The locking member 6 is preferably vertically disposed on the back portion 2a, and the locking member 6 is moved up and down to lock or unlock the back portion 2a and the seat 11 body. Preferably, the moving block 4 is disposed directly below the locking member 6, and the moving block 4 can drive the locking member 6 to move up and down.

The back 2a is internally provided with a channel 8, the channel 8 is vertically arranged, the channel 8 penetrates through the upper surface or the lower surface of the back 2a, the locking piece 6 is arranged in the channel 8, and the locking piece 6 can move up and down in the channel 8. The utility model discloses a set up passageway 8 and be used for installing locking piece 6 at back 2 a. The back part 2a moves to drive the locking piece 6 to move synchronously, when the locking piece 6 extends out of the back part 2a and acts on the chair back body 1, the left-right direction relative displacement between the back part 2a and the chair back is limited through the stress of the locking piece, the distance between the two side wings 2 cannot be adjusted, and the side wings 2 are fixed on the chair back.

The barrier strips 9 are positioned above or below the back plate, and the barrier strips 9 limit the back plate not to displace in the up-down direction. The chair back body 1 further comprises a plurality of barrier strips 9, the barrier strips 9 are located above or below the back plate, and the barrier strips 9 limit the back plate not to displace in the up-down direction. The utility model discloses a blend stop 9 has a guide effect to flank 2 for flank 2 is adjusting the removal in-process, and is more stable.

The barrier strip 9 is provided with a plurality of insertion holes, and the locking piece 6 can extend into the insertion holes. The jacks are regularly arranged.

A child seat, as shown in fig. 4, includes a headrest 10, a seat 11, and the backrest.

The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (9)

1. The fastening device comprises a locking assembly and a driving member, and is characterized in that the driving member (3) is connected with the locking assembly through a moving block (4), the moving block (4) is subjected to the acting force of the driving member (3), and the moving block (4) converts the direction of the acting force and applies the direction to the locking assembly; waist-shaped holes (5) are formed in the moving block (4), the waist-shaped holes (5) are obliquely arranged, and the moving block (4) drives the locking component to move through the waist-shaped holes (5).

2. The fastening device according to claim 1, wherein the driving member (3) can drive the movable plate to move left and right, and the movable block (4) moving left and right can drive the locking assembly to move up and down.

3. The back of the chair, including back of the chair body (1) and flank (2), flank (2) including slidable mounting back (2a) in back of the chair body (1), its characterized in that flank (2) are provided with the fastener of any one of claims 1-2, but fastener's locking Assembly lock solid or unblock back (2a) and back of the chair body (1), driving piece (3) set up in back of the chair body (1) or flank (2).

4. The chair back of claim 3, wherein the locking assembly comprises a plurality of locking members (6), the locking members (6) being disposed vertically within the back portion (2 a).

5. The chair back according to claim 4, wherein the first end of the locking member (6) is a mounting end (6a), the mounting end (6a) is located in the kidney-shaped hole (5), the second end of the locking member (6) is a free end (6b), and the free end (6b) can connect the back portion (2a) and the chair back body (1).

6. The chair back according to claim 3, wherein the chair back is provided with a limiting member (7), and the limiting member (7) limits the moving block (4) from moving in the vertical direction.

7. The chair back of claim 4, wherein the back portion (2a) is provided with a channel (8), the channel (8) is vertically arranged, the channel (8) penetrates through the upper surface or the lower surface of the back portion (2a), the locking member (6) is arranged in the channel (8), and the locking member (6) can move up and down in the channel (8).

8. The chair back of claim 3, characterized in that the chair back body (1) further comprises a plurality of bars (9), the bars (9) are positioned above or below the back plate, and the bars (9) limit the back plate from moving in the up-down direction.

9. Child safety seat, characterized in that it comprises a headrest (10), a seat (11), and a back according to any one of claims 3 to 8.

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