CN110269432A - Disk folding backrest device on go-cart - Google Patents

Abstract

Disk folding backrest device on a kind of go-cart, including upper disk (1), backrest (2) and briquetting (3), backrest is mounted on the rear wall in seat hole (12) of disk, the upper half of two pieces of lugs (24) of the lower edge of backrest is respectively embedded into two notches (15) in the lower edge of the rear wall in the seat hole of disk, the upper half of shaft (25) on two pieces of lugs of backrest is respectively embedded into the semicircular groove (13) on two risers (14) of disk, briquetting is pressed in from bottom to top on the lug and shaft of the lower edge of backrest, in notch (32) on the antetheca of the lower half difference wedge pressure block of the lug of the lower edge of backrest, in the semicircular groove (33) on partition (34) in the lower half difference wedge pressure block of shaft on the lug of backrest；Pressing plate is mutually fixed with screw and upper disk.Backrest can be rolled over by go-cart forward when storing up, and volume is made to become smaller, go-cart using when backrest dug upwards, it is simple and facilitate.

Description

Disk folding backrest device on go-cart

Technical field

The present invention relates to a kind of structure of perambulator, disk folding backrest device on a kind of go-cart.

Background technique

Generally there are two types of modes for the structure of go-cart cushion (or seat) at present: integral type cushion and sectional type cushion, respectively There are advantage and disadvantage.Integrated saddle use it is more convenient, but since the backrest of cushion extends upwards, so that volume compares when packaging Greatly, the resource of storage and transport is occupied, increases product cost, container waste is walked in export trade can be more obvious；Sectional type cushion packet Although volume is smaller when dress, consumer using when install it is more troublesome.

Summary of the invention

The present invention is directed to propose disk folding backrest device on a kind of go-cart, pacify when not only packaging volume is smaller and use It fills easy to operate.

Disk folding backrest device includes upper disk, backrest and briquetting on this go-cart.There is a seat at the rear portion of upper disk Hole has the notch of two up and down directions in the lower edge of the rear wall in the seat hole of upper disk, has two pieces in the rear wall in the seat hole of upper disk Riser, the lower edge of two pieces of risers respectively have a semicircular groove.The lower edge of backrest has two pieces of lugs stretched out rearward, often There is a shaft to the cylinder extended laterally on block lug.On the antetheca of briquetting along above have two up and down directions lack Mouthful, there are two pieces of partitions in briquetting, along respectively there is a semicircular groove on two pieces of partitions.Two pieces of lugs of the lower edge of backrest Top half is respectively embedded into two notches in the lower edge of the rear wall in the seat hole of disk, the shaft on two pieces of lugs of backrest Top half be respectively embedded into the semicircular groove on two risers of disk, briquetting is pressed in the lower edge of backrest from bottom to top Lug and shaft on, the lower half portion of two pieces of lugs of the lower edge of backrest is respectively embedded into two notches on the antetheca of briquetting In, the lower half portion of the shaft on two lugs of backrest is respectively embedded into the semicircular groove on two pieces of partitions in briquetting In；Pressing plate is mutually fixed with screw and upper disk.

Backrest on this go-cart in disk folding backrest device can be rolled over down forward or be dug upwards, when go-cart is stored up Backrest can be rolled over forward, be hidden into the seat hole of disk, volume becomes smaller, convenient for packaging, storage and transport；Go-cart opening makes Used time only need to dig upwards backrest, simply facilitate.

Detailed description of the invention

Fig. 1 is the perspective view of disk folding backrest device on go-cart；

The state diagram when backrest of disk folding backrest device is rolled over forward on Fig. 2 go-cart；

The perspective view of the inversion state of disk on Fig. 3；

The enlarged drawing at the rear portion of the upper disk of Fig. 4 inversion state；

The perspective view of Fig. 5 backrest；

The front shroud of Fig. 6 backrest；

The back plate of Fig. 7 backrest；

The perspective view of Fig. 8 briquetting；

The perspective view of the inversion state of Fig. 9 briquetting；

The schematic diagram of each component combination process of disk folding backrest device on Figure 10 go-cart；

Structure chart after disk and backrest are combined on Figure 11；

Figure 12 briquetting, upper disk and backrest be combined after structure chart；

The structure chart of Figure 13 seat；

Figure 14 has the perspective view of disk folding backrest device on the go-cart of seat；

State diagram when Figure 15 has the backrest of disk folding backrest device on the go-cart of seat to roll over forward.

Specific embodiment

As shown in Figure 1, disk folding backrest device includes upper disk 1, backrest 2 and briquetting 3 on this go-cart.Upper disk 1 There is a seat hole 12 at rear portion, and backrest is mounted on the rear wall in seat hole 12 of disk.11 be audio disk mounting groove in figure.Such as figure Shown in 3 and Fig. 4, there is the notch 15 of two up and down directions in the lower edge of the rear wall in the seat hole of upper disk 1, behind the seat hole of upper disk There are two pieces of risers 14 in wall, the lower edge of two pieces of risers 14 respectively has a semicircular groove 13；As shown in Fig. 5, Fig. 6 and Fig. 7, lean on Back 2 is composed of cover board 21 and back plate 22, the lower edge (the namely lower edge of the back plate 22 of backrest) of backrest 2 have two pieces downwards to The lug 24 stretched out afterwards, have on every piece of lug one to the cylindrical shaft 25 extended laterally.As shown in Figure 8 and Figure 9, briquetting There are two pieces of partitions 34 on 3 antetheca 31 along the notch 32 for above there are two up and down directions, briquetting, along each on two pieces of partitions 34 There is a semicircular groove 33.The assembling process of upper disk 1, backrest 2 and briquetting 3 as shown in Figure 10 (upper disk, backrest in figure and Briquetting is all inversion state), the top half of two pieces of lugs 24 of the lower edge of backrest 2 is respectively embedded into the rear wall in the seat hole of disk Lower edge on two notches 15 in, the top half of the shaft 25 on two pieces of lugs of backrest be respectively embedded into two pieces of disk it is perpendicular In semicircular groove 13 on plate 14, become state shown in Figure 11；Briquetting 3 is pressed in the convex of the lower edge of backrest 2 from bottom to top On piece 24 and shaft 25, the lower half portion of two pieces of lugs 24 of the lower edge of backrest 2 is respectively embedded into two on the antetheca of briquetting 3 and lacks In mouth 32, the lower half portion of the shaft 25 on two pieces of lugs of backrest is respectively embedded into the semicircle on two pieces of partitions 34 in briquetting Groove 33 in, become state shown in Figure 12, finally the screw of pressing plate 3 and upper disk 1 be fastened.

Since two pieces of lugs 24 of the lower edge of the backrest 2 on this go-cart in disk folding backrest device are stretched rearward Out and the shaft 25 of cylindrical type is from lug to extending laterally, and makes backrest 2 that can fall according to the axial preceding folding of shaft 25 or dig upwards (during backrest is rolled over or be dug upwards forward notch 15 and briquetting antetheca of the lug 24 on the rear wall in the seat hole of upper disk On notch 32 in rotate).Backrest can be rolled over by go-cart forward when storing up, and being hidden into the seat hole 12 of disk becomes Fig. 2 institute The state shown, volume become smaller, convenient for storage and transport；In use, backrest is dug upwards as state shown in FIG. 1, It is easy to operate and facilitate.

As shown in fig. 7, the shape of the back plate 22 of backrest 2 can for lower part forward again downward bending, form a step 23, When backrest is dug upwards, this step is just fastened on the hole in the seat hole 12 of disk 1 along upper, is leaned on by the hole in seat hole along supporting Back makes backrest be in firm state.As shown in fig. 7, square hole 26 there are two acceptable on the step 23 of the back plate 22 of backrest 2, As shown in Fig. 2, the hole in the seat hole 12 of upper disk 1 along upper there are two rectangular convex block 13, the two rectangular convex blocks 13 be located at Two square holes 26 by the corresponding position of two square holes 26 of back, when backrest 2 is dug upwards, on the step of the back plate of backrest The hole in the seat hole of disk 1 is linked in along the rectangular convex block 13 of upper two, the backrest 2 after digging can be made more firm.

It can be soft cloth with disk folding backrest device is used in combination on this go-cart seat, it can also To be rigid plastics, the structure of the seat of rigid plastics can be as shown in figure 13, and a recess is arranged at the top of the rear wall of seat 4 41, when seat is mounted in the seat hole 12 of disk, the lower part of backrest 2 is embedded in the recess 41 of above-mentioned seat, becomes Figure 14 institute The state shown.When rolling over backrest 2 forward when storing up, backrest 2 is hidden into 4 the inside of seat, becomes state shown in figure 15, and volume becomes It is small, convenient for packaging, storage and transport.

Claims (2)

1. disk folding backrest device on a kind of go-cart, including upper disk (1), backrest (2) and briquetting (3), the rear portion of upper disk (1) There is a seat hole (12), it is characterized in that there are two pieces of risers (14) in the rear wall in the seat hole of upper disk, under two pieces of risers (14) Respectively there is a semicircular groove (13) on edge；The lower edge of backrest (2) has two pieces of lugs stretched out rearward (24), every piece of lug On have one to the cylindrical shaft (25) extended laterally；Have on two in the lower edge of the rear wall in the seat hole of the upper disk The notch (15) in lower direction；Have along the notch (32) for above having two up and down directions, briquetting on the antetheca of briquetting (3) two pieces every Plate (34), along respectively there is a semicircular groove (33) on two pieces of partitions (34)；Two pieces of the lower edge of the backrest (2) are convex The top half of piece (24) is respectively embedded into two notches (15) in the lower edge of the rear wall in the seat hole of disk, and two pieces of backrest The top half of shaft (25) on lug is respectively embedded into the semicircular groove (13) on two risers (14) of disk, pressure Block (3) is pressed in from bottom to top on the lug (24) and shaft (25) of the lower edge of backrest (2), two pieces of lugs of the lower edge of backrest (2) (24) lower half portion is respectively embedded into two notches (32) on the antetheca of briquetting (3), the shaft on two pieces of lugs of backrest (25) lower half portion is respectively embedded into the semicircular groove (33) on two pieces of partitions (34) in briquetting；Pressing plate (3) uses spiral shell Silk is mutually fixed with upper disk (1).

2. disk folding backrest device on go-cart as described in claim 1, it is characterized in that further include seat (4), seat One recess (41) is arranged at the top of rear wall, and seat is mounted in the seat hole (12) of disk, and the lower part of backrest (2) is embedded in above-mentioned seat In the recess (41) of chair.