CN201677912U

CN201677912U - Adjustable fence for child tricycle

Info

Publication number: CN201677912U
Application number: CN2010201658504U
Authority: CN
Inventors: 朱巧观
Original assignee: PINGHU GOOD CHILD PLASTIC TOYS FACTORY
Current assignee: PINGHU GOOD CHILD PLASTIC TOYS FACTORY
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2010-12-22
Anticipated expiration: 2020-04-15

Abstract

The utility model relates to an adjustable fence for a child tricycle. The adjustable fence comprises two handrails (1) and a support rod, wherein the support rod comprises a vertical rod (5) and a square pipe (7); the middle part of the square pipe is fixed at the upper end of the vertical rod; and 4-6 holes (8) arranged along the axis direction of the square pipe are arranged on the front side surface of the square pipe. The handrail (1) is of the arc shape, the front ends of the handrails are provided with heads (2) that can inserted into the square pipe (7), buttons (3) that can be embedded into the holes (8) are arranged on the front side wall of the heads, and the rear ends of the handrails are provided with rotating mechanisms (4). In the adjustable fence for the child tricycle, the support rod is fixed in front of a seat of the tricycle, the rotating mechanisms at the rear ends of the handrails are arranged at the two sides of a backrest of the seat, the heads at the front ends of the handrails are respectively inserted in the two ends of the square pipe at the upper part of the support, the buttons are embedded into the holes on the square pipe, and the handrails and the support rod are combined into a stable fence. The size of the fence can be adjusted by changing the inserting depth of the heads of the handrails into the square pipe.

Description

The adjustable fence of child's tricycle

Technical field

The utility model relates to a kind of structure of parts of child's tricycle, the adjustable fence of a kind of child's tricycle.

Background technology

Child's tricycle has a front-wheel, two trailing wheels, and there is a seat at the middle part, and the rear portion has one to push away handle, is used for the child and takes, and is carried out behind car by the adult.For guaranteeing safety, usually a fence is set on the seat of child's tricycle, the child is surrounded.When fence was excessive, safety was not strong, and fence too hour can make the child take inconvenience again.

Summary of the invention

The utility model is intended to propose a kind of structure of child's tricycle fence of scalable size, the adjustable fence of a kind of child's tricycle.

The adjustable fence of this child's tricycle comprises two handrails and a pole.Pole comprises montant and square tube, and square tube and montant are perpendicular, and the middle part of square tube is fixed on the upper end of montant, and 4～6 holes of arranging along the axis direction of square tube are arranged on the leading flank of square tube, and there is the connector of the usefulness that is connected with the child's tricycle crossbeam lower end of montant.Handrail camber, the front end of handrail have a head that can insert in the square tube, and a button in the hole that can embed on the square tube leading flank is arranged on the front side wall of this head, and there is a rotating mechanism rear end of handrail.

With the strut fixation in the adjustable fence of this child's tricycle before the seat of three-wheel vehicle, the lower end and the crossbeam of montant are fixed, the rotating mechanism of the rear end of two handrails is installed in the both sides of the backrest of seat, the head of handrail front end inserts respectively in the two ends of square tube on pole top, make the button of handrail head embed in the hole on the square tube, handrail promptly fixes with square tube, and handrail and pole are combined into a firm fence.Change the depth of penetration of handrail head in square tube, with regard to the size of scalable fence.

Description of drawings

Fig. 1 is the constructional drawing of the adjustable fence of child's tricycle;

Fig. 2 is the constitutions diagram of two handrails when opening;

Fig. 3 is the application scheme drawing of the adjustable fence of child's tricycle;

Constitution diagram when Fig. 4 is adjusted to greatly for fence;

Fig. 5 is the constructional drawing of the rotating mechanism of armrest rear end;

Fig. 6 is the catenation principle figure of handrail head and armrest body;

Fig. 7 is a kind of constructional drawing of handrail head;

Fig. 8 is a kind of constructional drawing of button;

The scheme drawing that Fig. 9 combines with button for the handrail head;

Figure 10 is the cutaway view of structure shown in Figure 9;

Figure 11 is the another kind of constructional drawing of handrail head.

The specific embodiment

As shown in Figure 1, the adjustable fence of this child's tricycle comprises two handrails 1 and a pole.Described pole comprises montant 5 and square tube 7, and square tube and montant are perpendicular, and the middle part of square tube is fixed on the upper end of montant, and square tube and montant are formed a T-Type structure.4～6 holes 8 of arranging along the axis direction of square tube are arranged on the leading flank of square tube, are 4 holes shown in the figure, and there is the connector 6 of the usefulness that is connected with the child's tricycle crossbeam lower end of montant 5.As depicted in figs. 1 and 2, handrail 1 camber, the front end of handrail have a head 2 that can insert in the square tube 7, and a button 3 is arranged on the front side wall of this head, and this button can embed in the hole 8 on the leading flank of square tube, and there is a rotating mechanism 4 rear end of handrail.

As shown in Figure 3, with the place ahead of the strut fixation in the adjustable fence of this child's tricycle at the seat 9 of child's tricycle, the connector 6 of montant lower end is fixed with crossbeam 16, the both sides of the backrest 17 that the rotating shaft in the rotating mechanism 4 of the rear end of two handrails 1 or axle sleeve are fixed on seat 9, the head 2 of two handrail front ends inserts respectively in the two ends of square tube 7 on pole top, make the button 3 of handrail head embed in the hole 8 on the square tubes, handrail and pole just are combined into a firm fence.Button is embedded in the different hole on the square tube, can change the depth of penetration of handrail head in square tube, thereby regulate the size of fence.Among Fig. 1, handrail head insertion square tube is darker, and fence is less, and among Fig. 4, it is more shallow that the handrail head inserts square tube, and fence is bigger.As shown in Figure 2, in the adjustable fence of this child's tricycle, because the head 2 of two handrails can be transferred to from square tube 7, two handrails are opened to both sides, when child being embraced, can earlier handrail be opened into seat, treat the handrail that closes again after child sits straight, it is very convenient to use.

As shown in Figure 5, the rotating mechanism 4 of the rear end of handrail 1 can be arranged to the both sides that axle sleeve 20 is fixed on the backrest 17 of seat, and the rotating shaft 21 on the handrail is inserted in this axle sleeve.As shown in Figure 6, the head 2 of handrail front end can be made two independently parts with the main body 19 of handrail, and being plugged on together mutually, the back fixes with screw.

The head of the handrail in the adjustable fence of this child's tricycle and the structure of button can have various ways, if guarantee button can retraction handrail head when pushing with hand in, can eject automatically after letting go.Fig. 7, Fig. 8, Fig. 9 and Figure 10 are a kind of structure of handrail head and button.As shown in Figure 7, the cylindrical cavity 13 of an indent is arranged on the front side wall of the head 2 of handrail, on the upper and lower sidewall of this cylindrical cavity along a strip shape hole 11 is axially respectively arranged.As shown in Figure 8,3 one-tenth cylindrical shapes of button, the front end sealing, there are two elastic strips 18 at the rear portion of barrel, and there is a small embossment 14 that outwards protrudes the rear end of every elastic strip.As Fig. 9 and shown in Figure 10, button places in the cylindrical cavity 13 of head 2 of handrail, and the small embossment 14 on two elastic strips on the button embeds respectively in two strip shape holes 11 on the sidewall of cylindrical cavity.A spring 12 is arranged in the button, and an end of spring withstands the closed end of button, and the other end of spring withstands the diapire of the cylindrical cavity 13 on the handrail head 2.Spring outwards ejects button, and two small embossments 14 on the button catch on the nose end in strip shape hole 11, when button being had push with hand in the retraction handrail head, the function that ejects automatically of the back of letting go.10 screw holes of using when being connected with the main body 19 of handrail among Fig. 7 for the head 2 of handrail.

Figure 11 shows that the another kind of structure of handrail head and button thereof, button 3 is fixed on the elastic strip 15 on the front side wall of handrail head 2.The function that button in this structure also has when pushing with hand in the retraction handrail head, eject automatically the back of letting go, can be used for handrail head 2 and square tube 7 dress, tear operation open.

Claims

1. adjustable fence of child's tricycle, comprise two handrails (1) and a pole, it is characterized in that described pole comprises montant (5) and square tube (7), square tube and montant are perpendicular, the middle part of square tube is fixed on the upper end of montant, 4～6 holes (8) of arranging along the axis direction of square tube are arranged on the leading flank of square tube, there is the connector (6) of the usefulness that is connected with the child's tricycle crossbeam lower end of montant, handrail (1) camber, the front end of handrail has a head (2) that can insert in the square tube (7), button (3) in the hole (8) on the leading flank that can embed on the square tube is arranged on the front side wall of this head, and there is a rotating mechanism (4) rear end of handrail.

2. the adjustable fence of child's tricycle as claimed in claim 1, it is characterized in that having on the front side wall of head (2) of handrail the cylindrical cavity (13) of an indent, on this cylindrical cavity, on the lower wall along a strip shape hole (11) is axially respectively arranged, described button (3) becomes cylindrical shape, the front end sealing, there are two elastic strips (18) at the rear portion of barrel, there is a small embossment (14) that outwards protrudes the rear end of every elastic strip, button places in the cylindrical cavity (13) of described handrail head (2), small embossment (14) on two elastic strips on the button embeds respectively in two strip shape holes (11) on the sidewall of cylindrical cavity, a spring (12) is arranged in the button, one end of spring withstands the closed end of button, and the other end of spring withstands the diapire of the cylindrical cavity (13) on the handrail head (2).