CN203458085U

CN203458085U - Switch-free automatic height adjusting device for child heightened chair

Info

Publication number: CN203458085U
Application number: CN201320523378.0U
Authority: CN
Inventors: 乐明
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-23
Filing date: 2013-08-23
Publication date: 2014-03-05
Anticipated expiration: 2023-08-23

Abstract

The utility model discloses a switch-free automatic height adjusting device for a child heightened chair. The switch-free automatic height adjusting device comprises a heightened chair bottom and a seat, wherein both sides of the seat are provided with handrails; the handrails on both sides are connected with the heightened chair bottom through lifting mechanisms; each lifting mechanism comprises an outer guide rail fixing cover plate and two inner guide rails which are arranged symmetrically; at least two clamping groove tap positions are arranged symmetrically on the two guide rails respectively; downward sliding rails are further arranged beside the clamping groove tap positions; a tap position support frame is further arranged between the two guide rails; the upper part of the tap position support frame is connected with a guide rail connecting rod; the guide rail connecting rod is connected with the handrails; torsion tap position sheets are arranged symmetrically on both sides of the lower part of the tap position support frame; a spring is connected between the two torsion tap position sheets; the lower parts of the two torsion tap position sheets project outwards; the upper surfaces of projecting positions are formed obliquely; the lower surfaces of the projecting positions are erected on the clamping groove tap positions. The switch-free automatic height adjusting device has the advantages of attractive appearance, convenience in operation and high safety.

Description

Children increase chair without switch automatic height adjusting device

Technical field

The utility model relates to a kind of child utensil, especially relate to a kind of children increase chair without switch automatic height adjusting device.

Background technology

Existing children increase chair, generally by switch, regulate its height, and because children are less, especially for baby, the height difficulty of own adjusting seat are larger.And children are mostly naughty, be sitting on chair and always like afterwards patting in surrounding, if careless by arriving switch, seat lifting, can frighten children, even also has certain potential safety hazard.

Utility model content

The utility model is in order to overcome above-mentioned deficiency, provide a kind of good looking appearance, easy to operate and safe children increase chair without switch automatic height adjusting device.

The technical solution of the utility model as:

A kind of children increase chair without switch automatic height adjusting device, comprise and increase chair bottom and seat, the both sides of described seat are provided with handrail, the handrail of described both sides all by elevating mechanism with increase chair bottom and be connected, described elevating mechanism comprises outside guide rail securing cover plate and inner symmetrically arranged two guide rails, on two guide rails, symmetry is respectively equipped with at least one draw-in groove gear, on the guide rail of draw-in groove gear side, is also provided with glidepath;

Between described two guide rails, be also provided with a gear bracing frame, the top of described gear bracing frame is connected with guide rail connecting rod, and described guide rail connecting rod is connected with handrail;

The bilateral symmetry of described gear bracing frame bottom is provided with twisting gear sheet, between described two twisting gear sheets, be connected with a spring, the bottom of described two twisting gear sheets is all outwards outstanding, and the upper surface at outstanding position is obliquely installed, and lower surface frame is on draw-in groove gear.Spring and the twisting gear sheet upper surface being obliquely installed make gear bracing frame when the pulling force being subject to upwards, more easily move up.

Preferably, described draw-in groove gear is provided with three, and the top of described glidepath is communicated with the top of the draw-in groove gear in the top, and the bottom of glidepath is communicated with the top of the draw-in groove gear in below.

Described both sides of increasing chair bottom are upwards provided with the projection of hollow, and described guide rail securing cover plate is placed in projection, and upper end is connected with handrail.

In described handrail, be provided with a cylindrical boss, the top of guide rail connecting rod is enclosed within on cylindrical boss.

The utility model only need pull handrail, and guide rail connecting rod just can drive gear support bar to rise, thereby drives two twisting gear sheets on gear bracing frame inwardly to shrink, and rises to a draw-in groove gear and eject and block again, completes the action of the gear that rises; Pull handrail can continue to rise again, when rising to the draw-in groove gear in the top, continue to pull handrail, gear bracing frame drops down onto the gear draw-in groove in below from glidepath.

The beneficial effects of the utility model are:

The utility model does not need switch, directly in handrail two sides, just can complete simple operations, reaches the conversion that raises and decline, and keeps the stable and safety of operating mode.And because whole elevating mechanism is all in product the inside, make external form more attractive in appearance.

Accompanying drawing explanation

The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:

Fig. 1 is the schematic diagram that children increase chair;

Fig. 2 is the schematic diagram of elevating mechanism internal structure;

Fig. 3 is the schematic diagram that elevating mechanism internal structure is connected with handrail;

Fig. 4 is the schematic diagram of guide rail.

The specific embodiment

By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.

Children as shown in Figure 1 increase chair without switch automatic height adjusting device, comprise and increase chair bottom 2 and seat 1, the both sides of described seat 1 are provided with handrail 3, the handrail 3 of described both sides all by elevating mechanism with increase chair bottom 2 and be connected, described elevating mechanism comprises outside guide rail securing cover plate, described both sides of increasing chair bottom 2 are upwards provided with the projection 4 of hollow, and described guide rail securing cover plate is placed in projection 4, and upper end is connected with handrail 3.

As shown in Figures 2 and 3, described elevating mechanism also comprises that on inner 5, two guide rails 5 of symmetrically arranged two guide rails, symmetry is respectively equipped with at least one draw-in groove gear 51, on the guide rail 5 of draw-in groove gear 51 sides, is also provided with glidepath 52; Between described two guide rails 5, be also provided with a gear bracing frame 6, the top of described gear bracing frame 6 is connected with guide rail connecting rod 7, and described guide rail connecting rod 7 is connected with handrail 3, wherein, in described handrail 3, be provided with a cylindrical boss 31, the top of guide rail connecting rod 7 is enclosed within on cylindrical boss 31.The bilateral symmetry of described gear bracing frame 6 bottoms is provided with twisting gear sheet 8, between described two twisting gear sheets 8, be connected with a spring 9, the bottom of described two twisting gear sheets 8 is all outwards outstanding, and the upper surface at outstanding position is obliquely installed, and lower surface frame is on draw-in groove gear 51.Spring and the twisting gear sheet upper surface being obliquely installed make gear bracing frame when the pulling force being subject to upwards, more easily move up.

Guide rail as shown in Figure 4, preferred, described draw-in groove gear 51 is provided with three, the top of described glidepath 52 is communicated with the top of the draw-in groove gear 51 in the top, the bottom of glidepath 52 with below the top of a draw-in groove gear 51 be communicated with.

Above-mentioned is enlightenment according to the utility model, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to claim scope.

Claims

Children increase chair without switch automatic height adjusting device, comprise and increase chair bottom (2) and seat (1), the both sides of described seat (1) are provided with handrail (3), it is characterized in that: the handrail of described both sides (3) all by elevating mechanism with increase chair bottom (2) and be connected

Described elevating mechanism comprises outside guide rail securing cover plate and inner symmetrically arranged two guide rails (5), the upper symmetry of two guide rails (5) is respectively equipped with at least one draw-in groove gear (51), on the guide rail (5) of draw-in groove gear (51) side, is also provided with glidepath (52);

Between described two guide rails (5), be also provided with a gear bracing frame (6), the top of described gear bracing frame (6) is connected with guide rail connecting rod (7), and described guide rail connecting rod (7) is connected with handrail (3);

The bilateral symmetry of described gear bracing frame (6) bottom is provided with twisting gear sheet (8), between described two twisting gear sheets (8), be connected with a spring (9), the bottom of described two twisting gear sheets (8) is all outwards outstanding, the upper surface at outstanding position is obliquely installed, and lower surface frame is on draw-in groove gear (51).
Children according to claim 1 increase chair without switch automatic height adjusting device, it is characterized in that: described draw-in groove gear (51) is provided with three.
Children according to claim 2 increase chair without switch automatic height adjusting device, it is characterized in that: the top of described glidepath (52) is communicated with the top of the draw-in groove gear in the top (51), the bottom of glidepath (52) is communicated with the top of the draw-in groove gear in below (51).
Children according to claim 1 increase chair without switch automatic height adjusting device, it is characterized in that: described in increase chair bottom (2) both sides be upwards provided with the projection (4) of hollow, described guide rail securing cover plate is placed in projection (4), and upper end is connected with handrail (3).
Children according to claim 1 increase chair without switch automatic height adjusting device, it is characterized in that: in described handrail (3), be provided with a cylindrical boss (31), the top of guide rail connecting rod (7) is enclosed within on cylindrical boss (31).