CN110861696A - A children's stroller with a convertible front wheel assembly - Google Patents

Abstract

The invention provides a children handcart with convertible front wheel components, belonging to the technical field of children carts, comprising a frame body, a front wheel bracket arranged at the front end of the frame body, a fixed seat, a fixed inserting pipe, a single-wheel component fixing device, a double-wheel component fixing device and wheel components, the fixed seat is fixed on the front wheel bracket through two fixed pins, two ends of the fixed seat are fixed cannula joints, a single-wheel component fixing device is also arranged in the middle of the fixing seat, a double-wheel component fixing device is arranged at one end far away from the mouth of the fixed cannula, the wheel component comprises a wheel, a wheel fork for fixing the wheel, and a vertical shaft fixed above the wheel fork, one end of the vertical shaft close to the wheel fork is provided with a vertical shaft clamping groove, can realize the interconversion of same vehicle tricycle children handcart and four-wheel children handcart, the whole car is dual-purpose, has satisfied the demand that the consumer possess tricycle and four-wheel children handcart simultaneously.

Description

A children's stroller with a convertible front wheel assembly

technical field

The invention belongs to the technical field of baby carriages, and particularly relates to a children's stroller with a convertible front wheel assembly.

Background technique

Children's trolleys in the prior art are mostly three-wheeled or four-wheeled. Three-wheeled and four-wheeled trolleys will be purchased at the same time for use in different environments, and children's trolleys are generally large in size, not only occupying a large space indoors, but also not easy to carry when traveling.

SUMMARY OF THE INVENTION

In order to solve the problems existing in the above-mentioned prior art, the present invention provides a children's trolley with a changeable front wheel assembly, that is, a children's trolley with three wheels and four wheels arbitrarily changed, and the following technical solutions are specifically adopted:

A children's stroller with a convertible front wheel assembly, comprising a frame body, a front wheel bracket arranged at the front end of the frame body, a fixing seat, a fixing insert tube, a single wheel assembly fixing device, a double wheel assembly fixing device, and a wheel assembly , the fixing seat is fixed on the front wheel bracket by two fixing pins, the two ends of the fixing seat are fixed intubation joints, the fixed intubation joints include a reinforcing tube, the outer wall of the reinforcing tube is provided with a plug slot, and the interior is provided with a return position Spring, the locking card passes through the plug card slot and is connected with the return spring, and the return spring can eject the locking card and pass through the plug card slot to the outside of the fixed intubation joint; the middle position of the fixed seat is also provided with a single Wheel assembly fixing device, single wheel assembly fixing device includes single wheel assembly socket, single wheel assembly vertical shaft card slot fixing plate, single wheel assembly return spring connected in parallel with single wheel assembly vertical shaft card groove fixing plate, single wheel assembly fixing cover Fix the single-wheel assembly vertical shaft card slot fixing piece and the single-wheel assembly return spring in the single-wheel assembly fixing device; the side wall of one end of the fixed intubation tube close to the nozzle is provided with a second plug slot, which is connected with the second plug slot. The corresponding button is provided with a double-wheel assembly fixing device at one end away from the fixed intubation nozzle. The double-wheel assembly fixing device includes a double-wheel assembly jack, and the lower end of the double-wheel assembly jack is provided with a double-wheel assembly vertical shaft card slot fixing piece, and The double-wheel assembly return spring arranged in parallel with the double-wheel assembly vertical shaft clamping groove fixing piece, the double-wheel assembly vertical shaft clamping groove fixing plate and the double-wheel assembly return spring are fixed in the double-wheel assembly fixing device through the double-wheel assembly fixing cover; The wheel assembly includes a wheel, a wheel fork for fixing the wheel, and a vertical shaft fixed above the wheel fork, and an end of the vertical shaft close to the wheel fork is provided with a vertical shaft slot.

Therefore, preferably, a circular hole corresponding to the insertion hole of the single wheel assembly is arranged in the middle of the fixing piece of the single wheel assembly slot.

For this reason, preferably, a circular hole corresponding to the insertion hole of the double wheel assembly is arranged in the middle of the fixing piece of the double wheel assembly slot.

Compared with the prior art, the present invention has the following beneficial effects: through the conversion of the double-wheel assembly and the single-wheel assembly, the mutual conversion of the three-wheeled children's trolley and the four-wheeled children's trolley of the same vehicle can be realized. It needs to be converted at will, and one car can be used for two purposes, especially when traveling.

Description of drawings

Figure 1-1 is a schematic view of the main structure of the frame of the present invention, and Figure 1-2 is a right side view of the present invention;

Figure 2 is a schematic structural diagram of a fixing seat and a fixed intubation joint of the present invention, that is, the cross-sectional view A-A in Figures 1-2;

3 is a schematic structural diagram of a fixed intubation joint according to the present invention;

Figure 4 is a schematic structural diagram of a fixed seat and a fixed cannula of the present invention, that is, a schematic diagram of a fixed cannula inserted into a fixed cannula joint, and is a cross-sectional view of E-E in Figure 1-2;

Figure 5 is a schematic structural diagram of the wheel assembly of the present invention;

Figure 6 is a schematic structural diagram of the single wheel assembly fixing device of the present invention;

7 is an enlarged schematic view of the structure of the single-wheel assembly fixing device and the double-wheel assembly fixing device of the present invention, that is, the cross-sectional view B--B in FIG. 1-1;

8 is a schematic diagram of the connection structure between the double wheel assembly fixing device and the fixing seat according to the present invention;

Fig. 9 is a cross-sectional view of the connection between the double wheel assembly fixing device and the fixing seat of the present invention, that is, the D-D cross-sectional view in Fig. 1-1.

Figure 1-1 and Figure 1-2: 1: Frame body; 2: Front wheel bracket; 3: Fixed seat;

Figure 2: 2-1: Fixed cannula joint; 2-2: Reinforcing tube; 2-3: Locking card; 2-5: Plug card slot; 6: Fixed pin

Figure 3: 3-1: button; 3-2: plug slot two; 3-3: double wheel assembly jack; 3-4: double wheel assembly vertical shaft card slot fixing piece; 3-5: double wheel assembly return Spring; 3-6: Double Wheel Assembly Fixing Cover; 3-7 Double Wheel Assembly Fixing Device

Figure 4: 3: Fixed seat; 4: Fixed cannula; 2-1: Fixed cannula joint; 2-2: Reinforcing tube; 2-3: Locking card; 2-4: Return spring; 2-5: Plug slot; 3-1: Button; 3-2: Plug slot two; 3-3: Double wheel assembly jack

Figure 5: 5: Wheel assembly; 5-1: Wheel: 5-2: Wheel fork; 5-3: Vertical shaft; 5-4: Vertical shaft slot

Figure 6: 6: Single-wheel assembly fixing device; 6-1: Single-wheel assembly socket: 6-2: Single-wheel assembly vertical shaft slot fixing plate: 6-3: Single-wheel assembly return spring; 6-4: Single-wheel assembly Wheel assembly fixed cover; 3: fixed seat;

Figure 7: 7: Round hole; 3-4(6-2): Double-wheel vertical shaft fixing plate; 3-5(6-3): Double-wheel assembly return spring

Figure 8: 2: Front wheel bracket; 3: Fixing seat; 6: Fixing pin; 2-2: Reinforcing tube; 2-3: Locking card; 2-5: Plug card; 2-1: Fixing intubation joint; 5 : Wheel assembly; 3-7 double wheel assembly fixtures.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

A children's stroller with a convertible front wheel assembly includes a frame body 1, a front wheel bracket 2 disposed at the front end of the frame body 1, a fixing seat 3, a fixing insert 4, and a wheel assembly 5. The fixing seat 3 It is fixed on the front wheel bracket 2 by two fixing pins 6. The two ends of the fixing base 3 are fixed intubation joints 2-1. The fixed intubation joints 2-1 include a reinforcing tube 2-3. The reinforcing tube 2-3 A plug card slot 2-5 is arranged on the outer wall, and a return spring 2-4 is arranged inside. The locking card 2-2 is located in the plug card slot 2-5 and is connected with the return spring 2-4. The return spring 2-4 can The locking card 2-2 pops out, and passes through the plug card slot 2-5 to the outside of the fixed intubation joint 2-1; a single wheel assembly fixing device is also provided in the middle position of the fixing seat 3, and the single wheel assembly fixing device includes a single wheel assembly. Wheel assembly socket 6-1, single wheel assembly vertical shaft card slot fixing piece 6-2, single wheel assembly return spring 6-3 connected in parallel with single wheel assembly vertical shaft card groove fixing plate 6-2, single wheel assembly fixing cover 6-4 Fix the single-wheel assembly vertical shaft fixing piece 6-2 and the single-wheel assembly return spring 6-3 in the single-wheel assembly fixing device. A round hole corresponding to the wheel assembly jack 6-1; a plug slot two 3-2 is provided on the side wall of the fixed intubation tube 4 near one end of the nozzle, and a button 3 corresponding to the plug slot two 3-2 -1, the end away from the nozzle of the fixed cannula 4 is provided with a double wheel assembly fixing device, and the double wheel assembly fixing device includes a double wheel assembly socket 3-3, and the lower end of the double wheel assembly socket 3-3 is provided with a double wheel assembly vertical shaft card Slot fixing piece 3-4, and double wheel assembly return spring 3-5 arranged in parallel with double wheel set vertical shaft card slot fixing piece 3-4, double wheel set vertical shaft card slot fixing piece 3-4 and double wheel assembly return spring The spring 3-5 is fixed in the double wheel assembly fixing device through the double wheel assembly fixing cover 3-6, and a circular hole corresponding to the double wheel assembly jack 3-3 is arranged in the middle of the double wheel assembly slot fixing piece 3-4 ; The wheel 5 assembly includes a wheel 5-1, a wheel fork 5-2 that fixes the wheel 5-1, a vertical shaft 5-3 fixed above the wheel fork 5-2, and the vertical shaft 5-3 is close to the wheel fork 5-2 One end of the vertical shaft is provided with a vertical shaft slot 5-4.

When a four-wheeled children's trolley is required, it is only necessary to insert the two fixed intubation tubes 4 into the fixed intubation joints 2-1 on both sides of the fixed seat 3 respectively. When the fixed intubation tubes 4 are inserted into the fixed intubation joints 2-1 , due to external force, the locking card 2-2 in the fixed cannula joint 2-1 is pressed against the return spring 2-4 inside the fixed cannula joint 2-1, when the plug slot 2 on the fixed cannula 4 is pressed When -5 and the plug slot 2 3-2 on the fixed intubation connector 2-1 are in the same position, the elastic force of the return spring 2-4 can make the locking card 2-3 pass through the plug slot 2-5 and The plug slot 2 3-2 pops out to the outside of the fixed cannula 4. At this time, the fixed cannula 4 is locked on both sides of the fixed seat 3 by the locking card 2-2, and then the vertical shafts 5- 3Insert them into the double wheel assembly holes 3-3 on both sides respectively. At this time, press the double wheel assembly vertical shaft slot fixing plate 3-4 inward, so that the round hole 7-1 and the double wheel assembly hole 3-3 Align up and down, the wheel assembly 5 can be inserted into the double wheel assembly hole 3-3. Since the vertical shaft slot 5-4 is set on the vertical shaft 5-3 of the wheel assembly 5, when the double wheel assembly vertical shaft slot is released and pressed, it is fixed. When the plate is 3-4, the elastic force of the double-wheel assembly return spring 3-5 can make the double-wheel assembly vertical shaft card slot fixing plate 3-4 pop out, and the double-wheel assembly vertical shaft card groove fixing plate 3-4 is just stuck on the vertical shaft. In the clamping slot 5-4, the wheel assembly 5 can be fixed on the double-wheel assembly fixing device, and the assembly of the four-wheeled trolley can be completed.

When a three-wheeled children's trolley is required, first press the button 3-1 on the fixed intubation tube 4, so that the locking card 2-3 can be pulled out of the plug card slot 2-5 and the plug card slot 2 3-2, and retracted into the fixed slot. In the reinforcing tube 2-2 of the inner 2-1, the fixed cannula 4 installed with the wheel assembly 5 can be pulled out, the same as above, and the fixed cannula 4 installed with the wheel assembly 5 on the other side can also be pulled out. out. When removing the wheel assembly 5, just press the double-wheel set vertical shaft clamping groove fixing piece 3-4 inward, so that the double-wheel set vertical shaft clamping groove fixing piece 3-4 is separated from the vertical shaft clamping slot 5-4, and the wheel assembly can be removed. 5 disassembly. Insert one of the disassembled wheel assemblies 5 into the single-wheel assembly hole 6-1. Similarly, the single-wheel assembly vertical shaft slot fixing plate 6-2 can fix the wheel assembly 5 in the single-wheel assembly fixing device, and complete the three steps. Assembly of wheeled carts.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A children's stroller with a convertible front wheel assembly, comprising a frame body (1), a front wheel support (2) arranged at the front end of the frame body (1), and characterized in that: it also comprises a fixing seat (3), A fixed cannula (4), a single-wheel assembly fixing device, a double-wheel assembly fixing device, a wheel assembly (5), the fixed seat (3) is fixed on the front end of the front wheel bracket (2), and the fixed cannula (4) Installed in the fixed intubation joints (2-1) on both sides of the fixed seat (3), the single-wheel assembly fixing device is installed in the middle position of the fixed seat (3), and the double-wheel assembly fixing device is installed on the two wheels respectively. on the fixed cannula (4) on the side. 2. The children's stroller with a convertible front wheel assembly according to claim 1, characterized in that: a plug slot two (3-2) is provided on the side wall of one end of the fixed cannula (4) close to the nozzle, and The button (3-1) corresponding to the second plug slot (3-2) is provided with a double wheel assembly fixing device at one end away from the nozzle of the fixed intubation tube (4). 3. The children's stroller with a convertible front wheel assembly according to claim 1, wherein the single wheel assembly fixing device comprises a single wheel assembly insertion hole (6-1), a single wheel assembly vertical shaft clamping slot fixing piece ( 6-2), the single-wheel assembly return spring (6-3) connected in parallel with the single-wheel assembly vertical shaft clamping groove fixing piece (6-2), the single-wheel assembly fixing cover (6-4) to clamp the single-wheel assembly vertical shaft The slot fixing piece (6-2) and the return spring (6-3) of the single wheel assembly are fixed in the fixing device of the single wheel assembly, and the slot fixing piece (6-2) of the single wheel assembly is arranged in the middle to be inserted into the single wheel assembly. The hole (6-1) corresponds to the round hole. 4. The children's stroller with a convertible front wheel assembly according to claim 1, wherein the double wheel assembly fixing device comprises a double wheel assembly insertion hole (3-3), a double wheel assembly insertion hole (3-3) ) The lower end is provided with a double-wheel assembly vertical shaft clamping groove fixing piece (3-4), and a double-wheel assembly return spring (3-5) arranged in parallel with the double-wheel assembly vertical shaft clamping groove fixing plate (3-4), the double-wheel assembly The vertical shaft card slot fixing piece (3-4) and the double wheel assembly return spring (3-5) are fixed in the double wheel assembly fixing device through the double wheel assembly fixing cover (3-6), and the double wheel assembly card groove is fixed A circular hole corresponding to the insertion hole (3-3) of the double wheel assembly is arranged in the middle of the sheet (3-4). 5. The children's stroller with a convertible front wheel assembly according to claim 1, wherein the wheel assembly (5) comprises a wheel (5-1), and a wheel fork (5-1) for fixing the wheel (5-1). 2), a vertical shaft (5-3) fixed above the wheel fork (5-2), and a vertical shaft slot (5-4) is provided at one end of the vertical shaft (5-3) close to the wheel fork (5-2). 6 . The children's stroller with a convertible front wheel assembly according to claim 1 , wherein the fixing device of the single wheel assembly is detachable, and the fixing device of the double wheel assembly is detachable. 7 .

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