CN201376614Y

CN201376614Y - Rotatable rear backrest of electric motor car

Info

Publication number: CN201376614Y
Application number: CN200920041580U
Authority: CN
Inventors: 马学峰
Original assignee: Jiangsu Xinri E Vehicle Co Ltd
Current assignee: Jiangsu Xinri E Vehicle Co Ltd
Priority date: 2009-03-25
Filing date: 2009-03-25
Publication date: 2010-01-06
Anticipated expiration: 2019-03-25

Abstract

A rotatable rear backrest of an electric motor car relates to the field of rotatable rear backrests on electric motor car frames. Backrest rotating shafts (3) pass through circular through holes on a backrest (2), a right bracket (4) for the backrest and a left bracket (14) for the backrest of the rotatable rear backrest (1) of the electric motor car; the two ends of a rotating shaft (5) are arranged in the lower circular through holes of the right bracket (4) for the backrest and the left bracket (14) for the backrest; a flat shaft (16) is arranged at the middle part of the rotating shaft (5) with torsion springs (6) on the two sides; a right fixed sleeve (7) and a left fixed sleeve (15) which are welded on a bracket (8) are sleeved on the two sides of the flat shaft (16); a bayonet lock (11) is mounted in a bayonet lock fixing groove (10) in a housing (9) fixed on the bracket (8); and the bayonet lock (11) sleeved with a pressure spring (13) is connected with a bayonet lock disk (12). The rotatable rear backrest of the electric motor car has the advantages of simple structure and convenient installation.

Description

The rotatable back of battery-driven car backrest

Technical field:

The rotatable back of the utility model battery-driven car backrest relates to the backrest field, rotatable back that welding is installed on electromobile frame.

Background technology:

On general battery-driven car in the past, the back backrest of setting also is installed sometimes at the cyclist rear portion, so that the travelling people person of band cyclist back, but the back backrest of Shu Liing is fixed like this, can not rotary folding and put down, obviously, fixing back backrest like this is inconvenient to the cyclist, therefore, should design and a kind ofly can be used for electronic going up and both erect backrests in use, can play this back backrest at time spent rotary folding not again.

Summary of the invention:

The purpose of this utility model provides a kind of electronic rotatable back backrest, by backrest, backrest are walked around, the rotatable back of battery-driven car back support that backrest right support, S. A., torsion spring, support, shell, bayonet lock hold down groove, bayonet lock, bayonet lock dish, stage clip, backrest left socle and the left and right fixed cover of S. A. are formed is on electromobile frame, to reach the purpose that makes the back backrest can stably hold up in use and can rotary folding gets up when not using.

The rotatable back of a kind of battery-driven car backrest, the rotatable back of battery-driven car backrest is by backrest, the backrest rotating shaft, the backrest right support, S. A., torsion spring, the right fixed cover of S. A., support, shell, the bayonet lock hold down groove, bayonet lock, the bayonet lock dish, stage clip, backrest left socle and S. A. left side fixed cover are formed, backrest rotating shaft middle part is installed in the backrest rotating shaft round tube hole of backrest, backrest rotating shaft two ends are inserted in respectively in the top round tube hole of backrest right support and backrest left socle, be respectively installed with torsion spring in the S. A. both sides, be respectively installed with right fixed cover and the left fixed cover that is welded on the support in the flat axle both sides at S. A. middle part; The shell both sides respectively by screw retention on support, in the bayonet lock hold down groove in the enclosure bayonet lock is installed; Can be installed with the middle flat axle of S. A. in the square groove that in bayonet lock nose circle face, is milled with; Compression spring sleeve is contained on the bayonet lock right circles axis of a cylinder, and bayonet lock right circles axis of a cylinder is connected with the bayonet lock dish by bolt.

The principle of work of the rotatable back of the utility model battery-driven car backrest and structure be backrest right support, backrest left socle and with their bonded assemblys be equipped with backrest the backrest rotating shaft, all can rotate with their bonded assembly S. A.s around the S. A. axle center, when backrest right support, backrest left socle and backrest rotate to cocked position, can be installed on the flat axle of S. A. by bayonet lock dish, bayonet lock, S. A. is not rotated, backrest is holded up maintained static, stage clip guarantees that then bayonet lock is installed on the flat axle; After pulling out the bayonet lock dish and being installed on bayonet lock on the flat axle, then backrest, backrest rotating shaft, backrest right support, backrest left socle and S. A. can rotate again together, and backrest is put down, and are in horizontality.

The rotatable back of the utility model battery-driven car backrest advantage be simple in structure, install and connect and use all conveniently, working stability is reliable.

Description of drawings:

Fig. 1: the rotatable back of the battery-driven car backrest 1 main scheme drawing of looking.

Fig. 2: scheme drawing is looked on backrest 1 left side, the rotatable back of battery-driven car.

Fig. 3: for A-A among Fig. 1 to cross-sectional schematic.

The specific embodiment:

Referring to Fig. 1, Fig. 2 and Fig. 3, the rotatable back of battery-driven car backrest 1 is made up of backrest 2, backrest rotating shaft 3, backrest right support 4, S. A. 5, torsion spring 6, the right fixed cover 7 of S. A., support 8, shell 9, bayonet lock hold down groove 10, bayonet lock 11, bayonet lock dish 12, stage clip 13, backrest left socle 14 and S. A. left side fixed cover 15, backrest rotating shaft 3 middle parts are installed in the backrest rotating shaft round tube hole of backrest 2, and backrest rotating shaft 3 two ends are inserted in respectively in the top round tube hole of backrest right support 4 and backrest left socle 14; S. A. 5 two ends are inserted in respectively in the bottom round tube hole of backrest right support 4 and backrest left socle 14, be respectively installed with torsion spring 6 in S. A. 5 both sides, be respectively installed with right fixed cover 7 and the left fixed cover 15 that is welded on the support 8 in flat axle 16 both sides at S. A. 5 middle parts; Shell 9 both sides respectively by screw retention on support 8, in the bayonet lock hold down groove 10 in shell 9 bayonet lock 11 is installed; Can be installed with the flat axle 16 of S. A. 5 centres in the square groove that in bayonet lock 11 nose circle faces, is milled with; Stage clip 13 is sleeved on the bayonet lock 11 right circles axiss of a cylinder, and bayonet lock 11 right circles axiss of a cylinder are connected with bayonet lock dish 12 by bolt.

As shown in Figure 1, backrest right support 4 and backrest left socle 14 are disposed at the both sides of backrest 2, backrest rotating shaft 3 and S. A. 5 respectively symmetrically.

As shown in Figure 1, be inserted in the torsion spring hole of backrest left socle 14 respectively and the torsion spring hole of backrest right support 4 at two torsion spring 6 one ends of S. A. 5 both sides suits, two torsion spring 6 other ends are installed on respectively on the support 8.

As shown in Figure 1, the right fixed cover 7 of S. A. is the identical circle cover of shape with S. A. left side fixed cover 15, is welded on respectively on the support 8, and right fixed cover 7 of described S. A. and S. A. left side fixed cover 15 suit symmetrically are configured on the S. A. 5 of flat axle 16 both sides.

As depicted in figs. 1 and 2, backrest right support 4 is the identical square tube of shape with backrest left socle 14, and its bottom all is semicircular arc, has round tube hole at an upper portion thereof and at a lower portion thereof respectively, for backrest rotating shaft 3 and S. A. 5 usefulness are installed.

As shown in Figure 3, the bayonet lock dish 12 that is connected with bayonet lock 11 right circles axiss of a cylinder is the filled circles disk shape, is positioned at shell 9 outsides; Bayonet lock hold down groove 10 is positioned at shell 9, and columniform bayonet lock 11 is installed in the circular groove of bayonet lock hold down groove 10; Support 8 is welded on the electromobile frame.

Claims

1, the rotatable back of a kind of battery-driven car backrest, battery-driven car rotatable back backrest (1) is by backrest (2), backrest rotating shaft (3), backrest right support (4), S. A. (5), torsion spring (6), the right fixed cover (7) of S. A., support (8), shell (9), bayonet lock hold down groove (10), bayonet lock (11), bayonet lock dish (12), stage clip (13), backrest left socle (14) and S. A. left side fixed cover (15) are formed, it is characterized in that backrest rotating shaft (3) middle part is installed in the backrest rotating shaft round tube hole of backrest (2), backrest rotating shaft (3) two ends are inserted in respectively in the top round tube hole of backrest right support (4) and backrest left socle (14), be respectively installed with torsion spring (6) in S. A. (5) both sides, be respectively installed with right fixed cover (7) and the left fixed cover (15) that is welded on the support (8) in flat axle (16) both sides at S. A. (5) middle part; Shell (9) both sides respectively by screw retention on support (8), in the bayonet lock hold down groove (10) in shell (9) bayonet lock (11) is installed; Can be installed with the middle flat axle (16) of S. A. (5) in the square groove that in bayonet lock (11) nose circle face, is milled with; Stage clip (13) is sleeved on bayonet lock (11) the right circles axis of a cylinder, and bayonet lock (11) right circles axis of a cylinder is connected with bayonet lock dish (12) by bolt.

2, the rotatable back of a kind of battery-driven car according to claim 1 backrest, it is characterized in that backrest right support (4) and backrest left socle (14) are disposed at the both sides of backrest (2), backrest rotating shaft (3) and S. A. (5) respectively symmetrically, backrest right support (4) and backrest left socle (14) are square tube, its bottom all is semicircular arc, and the upper and lower all has round tube hole.

3, the rotatable back of a kind of battery-driven car according to claim 1 backrest, it is characterized in that two torsion springs (6) one ends are inserted in the torsion spring hole of backrest left socle (14) respectively and in the torsion spring hole of backrest right support (4), two torsion springs (6) other end is installed on respectively on the support (8).

4, the rotatable back of a kind of battery-driven car according to claim 1 backrest, it is characterized in that right fixed cover of S. A. (7) and S. A. left side fixed cover (15) are the identical circle cover of shape, be welded on respectively on the support (8), and suit is configured on the S. A. (5) of flat axle (16) both sides symmetrically.

5, the rotatable back of a kind of battery-driven car according to claim 1 backrest is characterized in that the bayonet lock dish (12) that is connected with bayonet lock (11) right circles axis of a cylinder is the filled circles disk shape, is positioned at shell (9) outside.

6, the rotatable back of a kind of battery-driven car according to claim 1 backrest is characterized in that bayonet lock hold down groove (10) is positioned at shell (9), and columniform bayonet lock (11) is installed in the circular groove of bayonet lock hold down groove (10).

7, the rotatable back of a kind of battery-driven car according to claim 1 backrest is characterized in that support (8) is welded on the electromobile frame.