CN206150969U - Backrest chair - Google Patents

Abstract

The utility model discloses a backrest chair, its technical scheme main points are, including the back of the chair and seat support, the dovetail that has a perfect understanding is totally offered to the seat support side, and back of the chair bottom an organic whole is connected with the trapezoidal bellying with dovetail sliding fit, and the dovetail tank bottom has inwards been offered in the tip position and has been put the thing hole, and it has the wedge through spring coupling to put thing hole bottom end, corresponds the position in the wedge on the trapezoidal bellying and has offered the spacing groove, and when trapezoidal bellying slips the wedge, wedge and spacing groove are inconsistent. The utility model aims at providing a backrest chair, space utilization can improve in the producer when storing with the transportation, and during normal use, the chair has better stability.

Description

A kind of chair with backrest

Technical field

The utility model is related to field of furniture, more specifically, it relates to a kind of chair with backrest.

Background technology

Chair form in the market is relatively simple, and its basic structure includes the chair back, seat support and chair leg.Normal conditions Under, the chair back and seat support are wholely set by the securing member of welding or complexity, producer in storage and transportation, " L The chair that type " is arranged can be taken than larger space, and resource utilization is not high.

The Chinese patent of Patent No. 201520996659.7 discloses a kind of Novel chair, including backup plate, handrail, Post, seat plate, connecting rod, chute, litter, plush copper, pillar and connecting rod constitute support member, and support member is fixedly connected with seat plate, seat Chair plate top surface is respectively provided on two sides with handrail, and chute is provided with two handrails, and the litter with plush copper, litter and backup plate are provided with chute It is connected as a single entity.The technical scheme can realize freely dismantle for backup plate and chair seat board by litter and chute, producer store with During transport, backup plate and chair seat board can be discretely located, be substantially increased storage space utilization rate.But this chair exists During actually used, due to not having position limiting structure in chute, backup plate position is susceptible to movement, or even falls off, surely It is qualitative poor.

Utility model content

In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of chair with backrest, and producer is in storage When depositing with transporting, it is possible to increase space availability ratio, when normally using, chair has more preferable stability.

For achieving the above object, the utility model provides following technical scheme：A kind of chair with backrest, including the chair back and chair Seat, the seat support side offer completely through dovetail groove, the chair back bottom be connected with and the dovetail groove slide The trapezoidal lug boss for coordinating, the dovetail groove bottom land inwardly offers glove hole in end position, and the glove hole bottom passes through Spring is connected with wedge, stopper slot is offered in the wedge correspondence position on the trapezoidal lug boss, when described trapezoidal When lug boss slips over the wedge, the wedge is inconsistent with the stopper slot.

Used as preferred, the trapezoidal lug boss end seamed edge is arranged in arc-shaped.

Used as preferred, the spring is brute spring.

The technical scheme has compared with prior art：Seat support side offer completely through dovetail groove, the chair back Bottom is connected with the trapezoidal lug boss that dovetail groove is slidably matched, and the chair back when in use, can be slided into dovetail by customer from side In groove, dovetail groove bottom land inwardly offers glove hole in end position, and glove hole bottom is connected with wedge, works as ladder by spring When shape lug boss slides to wedge, wedge is extruded in glove hole, after slipping over, wedge spring force effect under again Restore to the original state, be stuck in the stopper slot of trapezoidal lug boss, and then play spacing effect, prevent seat-back position from occurring when in use Mobile, stability is higher, and before dispatching from the factory, the chair back can be separated and stored by producer in storage with transportation with seat support, Substantially increase space availability ratio.

Description of the drawings

Fig. 1 is a kind of three-dimensional structure diagram I of chair with backrest embodiment of the utility model；

Fig. 2 is a kind of three-dimensional structure diagram II of chair with backrest embodiment of the utility model；

Fig. 3 is the partial enlarged drawing in Fig. 1 at A；

Fig. 4 is the partial enlarged drawing in Fig. 2 at B.

Description of reference numerals：1st, the chair back；11st, trapezoidal lug boss；111st, stopper slot；2nd, seat support；21st, dovetail groove；211st, put Thing hole；3rd, spring；4th, wedge.

Specific embodiment

Referring to figs. 1 to Fig. 4 three-dimensional structure diagram Is of chair with backrest embodiment a kind of to the utility model；

Fig. 2 is described further for a kind of chair with backrest embodiment of the utility model.

It is shown as shown in Figure 1, Figure 3 and Figure 4, the side of seat support 2 offer completely through dovetail groove 21, the bottom one of the chair back 1 Body is connected with the trapezoidal lug boss 11 that dovetail groove 21 is slidably matched, and the chair back 1 when in use, can be slided into dovetail groove by customer from side In 21, the bottom land of dovetail groove 21 inwardly offers glove hole 211 in end position, and the bottom of glove hole 211 is connected with wedge by spring 3 Shape block 4, when trapezoidal lug boss 11 slides to wedge 4, wedge 4 is extruded in glove hole 211, and after slipping over, wedge 4 exists Restore to the original state again under the effect of the elastic force of spring 3, be stuck in the stopper slot 111 of trapezoidal lug boss 11, and then play spacing effect, The position of the chair back 1 is prevented to be moved when in use, stability is higher, before dispatching from the factory, producer, can be with storage with transportation The chair back 1 is separated with seat support 2 and is stored, substantially increase space availability ratio.

As another embodiment, in above-mentioned technical proposal, dovetail groove 21 can also be substituted for T-slot, equally can be with Realize above-mentioned purpose.

As shown in Figure 2 and Figure 4, the end seamed edge of trapezoidal lug boss 11 is arranged in arc-shaped, when trapezoidal lug boss 11 slides to wedge During shape block 4, can preferably slide, it is to avoid trapezoidal lug boss 11 and wedge 4 collide conflict.

Further, spring 3 is brute spring 3, when using, can preferably improve chair stability, prevents the chair back 1 from occurring It is mobile.

The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.Should refer to Go out, for those skilled in the art, some improvement under the premise of without departing from the utility model principle and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (3)

1. a kind of chair with backrest, including the chair back and seat support, is characterized in that：The seat support side offer completely through dovetail Groove, the chair back bottom is connected with the trapezoidal lug boss being slidably matched with the dovetail groove, and the dovetail groove bottom land is in end Portion position inwardly offers glove hole, and the glove hole bottom is connected with wedge by spring, on the trapezoidal lug boss in The wedge correspondence position offers stopper slot, when the trapezoidal lug boss slips over the wedge, the wedge with The stopper slot is inconsistent.

2. a kind of chair with backrest according to claim 1, is characterized in that：The trapezoidal lug boss end seamed edge is in arc-shaped Arrange.

3. a kind of chair with backrest according to claim 1 and 2, is characterized in that：The spring is brute spring.