CN202314169U

CN202314169U - Back tilting component and seat

Info

Publication number: CN202314169U
Application number: CN2011204275895U
Authority: CN
Inventors: 朱坚; 宋永茂; 李全
Original assignee: Zhuhai Siger Medical Equipment Co Ltd
Current assignee: Zhuhai Siger Medical Equipment Co Ltd
Priority date: 2011-10-31
Filing date: 2011-10-31
Publication date: 2012-07-11
Anticipated expiration: 2021-10-31

Abstract

The utility model relates to a back tilting component, which is characterized by comprising a seat cushion member, a motor, a bent plate, an amplification pull rod and an amplification swing rod, wherein the motor is fixed on the cushion member; the seat cushion member is provided with a bent guide rail; the bent plate slides along the bent guide rail; the two ends of the amplification pull rod are correspondingly and movably connected with the lower end of the bent plate and the upper end of the amplification swing rod respectively; the lower end of the amplification swing rod is movably connected to the cushion member; and a telescopic rod of the motor is connected in the middle of the amplification swing rod. According to the back tilting component, the motor acts on the amplification swing rod, and the travel of the motor is amplified by utilizing swing of the amplification swing rod, so that the motor with shorter travel can be adopted; and therefore, the back tilting component has a compact structure, and is relatively low in cost and high in tilting speed.

Description

Back of the body pitching assembly and seat

[technical field]

This utility model relates to plant equipment, particularly a kind of seat of carrying on the back the pitching assembly and using this back of the body pitching assembly.

[background technology]

The common topmost motor function of dental patient chair is the up-down of seat cushion and the pitching of backrest, wherein the good and bad comfort level that directly influences patient of the elevating movement effect of backrest.Because if the track of back movement is unreasonable in backrest pitching process,, the variation patient's of body shape back rubs sense with the hands along with can producing to push away.

The way of improving the back movement track is to improve the point of rotation of backrest elevating movement, adds the radius of large back bent plate.Simultaneously in order not influence the form of seat cushion, guide rail scheme in adopting in the design of chair shelf structure.

Usually for supporting this scheme, need at present to adopt stroke directly to promote the backrest bent plate greater than the motor of 180MM.Defectives such as but this scheme exists motor cost high, and luffing speed is slow, and structure is not compact.

[utility model content]

The technical problem that this utility model will solve provides a kind of back of the body pitching assembly, compact conformation, and cost is lower.

Above-mentioned technical problem solves through following technical scheme:

A kind of back of the body pitching assembly; It is characterized in that comprise that a seat cushion spare, is fixed on motor, a bent plate, an amplification pull bar and an amplification fork of pad part, seat cushion spare is provided with a curved guide rail; Bent plate slides along curved guide rail; The two ends of amplification pull bar are corresponding respectively to flexibly connect with the lower end of bent plate, the upper end of amplification fork, and the lower end of amplification fork is connected pad spare versatilely, and the telescopic rod of motor is connected the centre of amplification fork.

Visible by technique scheme, this utility model back of the body pitching assembly acts on motor on the amplification fork, utilizes the swing of amplification fork to amplify the stroke of motor, thereby can adopt the short motor of stroke; Therefore, this utility model back of the body pitching modular construction is compact, and cost is lower and luffing speed is fast.

This utility model also provides a kind of seat with back of the body pitching function; It is characterized in that; Comprise that a base, is connected the back of the body pitching assembly that lifting structure and on the base is gone up and down by lifting structure control, back of the body pitching assembly comprises that the seat cushion spare, that is connected with lifting structure is fixed on motor, a bent plate, an amplification pull bar and an amplification fork of seat cushion spare, and seat cushion spare is provided with one and bends guide rail; Bent plate slides along curved guide rail; The two ends of amplification pull bar are corresponding respectively to flexibly connect with the lower end of bent plate, the upper end of amplification fork, and the lower end of amplification fork is connected seat cushion spare versatilely, and the telescopic rod of motor is connected the centre of amplification fork.

Said seat cushion spare comprises a seat support and a corresponding respectively left plate, a right plate that is connected the seat support left and right sides.

[description of drawings]

Fig. 1 is the structural representation of back of the body pitching assembly;

Fig. 2 to Fig. 4 transports to the transition process figure that the back of the body is faced upward state for back of the body pitching assembly from the back of the body state of bowing;

Fig. 5 is the structural representation of seat.

[specific embodiment]

As shown in Figure 1; A kind of back of the body pitching assembly that this concrete mode provides comprises that a seat cushion spare 1, is fixed on the motor 2 of seat cushion spare 1, a bent plate 3, an amplification pull bar 4 and an amplification fork 5, and seat cushion spare 1 is provided with a curved guide rail 101; Bent plate 3 slides along curved guide rail 101; The two ends of amplification pull bar 4 are corresponding respectively to flexibly connect with the lower end of bent plate 3, the upper end of amplification fork 5, and the lower end of amplification fork 5 is connected seat cushion spare 1 versatilely, and the telescopic rod 201 of motor 2 is connected the centre of amplification fork 5.

To shown in Figure 4, amplification fork 5 is swung under the promotion of motor like Fig. 2, and then does the semicircle track through amplification pull bar 4 promotion bent plates 3 along curved guide rail 101 and slide; Fig. 2 to Fig. 4 three picture groups have been demonstrated back of the body pitching assembly and have been transported to the transition process that the back of the body is faced upward state from the back of the body state of bowing.

As shown in Figure 5; A kind of seat that uses above-mentioned back of the body pitching assembly that this concrete mode provides; Comprise that a base 7, is connected the back of the body pitching assembly that lifting structure and on the base 7 is gone up and down by lifting structure control, back of the body pitching assembly comprises that a seat cushion spare 1, is fixed on the motor 2 of seat cushion spare 1, a bent plate 3, an amplification pull bar 4 and an amplification fork 5, and seat cushion spare 1 is provided with a curved guide rail 101; Bent plate 3 slides along curved guide rail 101; The two ends of amplification pull bar 4 are corresponding respectively to flexibly connect with the lower end of bent plate 3, the upper end of amplification fork 5, and the lower end of amplification fork 5 is connected seat cushion spare 1 versatilely, and the telescopic rod 201 of motor 2 is connected the centre of amplification fork 5.

Wherein, seat cushion spare 1 comprises that a seat support 801 and corresponding respectively is connected a left plate 802, a right plate 803 of the seat support left and right sides.

This utility model is not limited to the foregoing description, based on simple replacement the foregoing description, that do not make creative work, should belong to the scope that this utility model discloses.

Claims

1. carry on the back the pitching assembly for one kind; It is characterized in that, comprise that a seat cushion spare, is fixed on the motor of seat cushion spare, a bent plate, an amplification pull bar and an amplification fork, seat cushion spare is provided with a curved guide rail; Bent plate slides along curved guide rail; The two ends of amplification pull bar are corresponding respectively to flexibly connect with the lower end of bent plate, the upper end of amplification fork, and the lower end of amplification fork is connected on the seat cushion spare versatilely, and the telescopic rod of motor is connected the centre of amplification fork.

2. one kind has the seat of carrying on the back pitching function; It is characterized in that; Comprise that a base, is connected the back of the body pitching assembly that lifting structure and on the base is gone up and down by lifting structure control, back of the body pitching assembly comprises that the seat cushion spare, that is connected with lifting structure is fixed on motor, a bent plate, an amplification pull bar and an amplification fork of seat cushion spare, and seat cushion spare is provided with one and bends guide rail; Bent plate slides along curved guide rail; The two ends of amplification pull bar are corresponding respectively to flexibly connect with the lower end of bent plate, the upper end of amplification fork, and the lower end of amplification fork is connected seat cushion spare versatilely, and the telescopic rod of motor is connected the centre of amplification fork.

3. seat according to claim 2 is characterized in that, said seat cushion spare comprises a seat support and a corresponding respectively left plate, a right plate that is connected the seat support left and right sides.