CN207169029U - Swing bassinet structure - Google Patents

Abstract

The utility model relates to the technical field of fitness and entertainment equipment, and discloses a swing car structure, which includes a front wheel and two rear wheels. The front wheel is provided with a front wheel bracket, and the two rear wheels are connected by a rotating shaft. The front wheel bracket and the rotating shaft are connected by a suspension beam, the suspension beam is provided with a cross bar, and the cross bar is vertically fixedly connected with the suspension beam, and the two ends of the cross bar are provided with slings, and the lower end of the sling A seat is suspended between them, a handlebar is provided on the upper end of the front wheel frame, and a one-way limiting mechanism for preventing the front wheel from retreating is provided between the front wheel shaft and the lower end of the front wheel bracket. The utility model has the beneficial effects of beautiful structure, convenient steering, safe and stable use.

Description

swing car structure

technical field

The utility model relates to the technical field of fitness and entertainment equipment, in particular to a swing car.

Background technique

Existing swings are fixed and have high safety. However, swings have a single movement mode, low entertainment, and poor fitness effects. At present, various scooters, twisting cars, and bicycles are very popular among children. , strong entertainment, can move on the ground, but these cars are driven by feet, for novices, need to master certain skills, and scooters and other moving speed is fast, there are safety hazards.

Utility model content

In order to solve the problems of insufficient entertainment and difficult control of various scooters in the prior art, the utility model provides a swing car structure with strong entertainment, low difficulty in operation and safe use.

In order to achieve the above object, the utility model adopts the following technical solutions:

A swing car structure, including a front wheel and two rear wheels, the front wheel is provided with a front wheel support, the two rear wheels are connected by a rotating shaft, and the front wheel support and the rotating shaft are connected by a suspension beam , the suspension beam is provided with a cross bar, the cross bar is vertically fixedly connected with the suspension beam, the two ends of the cross bar are provided with slings, and a seat is suspended between the lower ends of the slings, and the front wheel vehicle The upper end of the frame is provided with a handlebar, and a one-way limiting mechanism for preventing the front wheel from retreating is provided between the front wheel shaft and the lower end of the front wheel bracket. The user sits on the seat and holds the handlebars with both hands. The human body and the car seat are integrated, and the external force received is zero. When both hands forcefully push the seat to move backward (that is, the swing swings backward), the human body produces a backward movement. Momentum, according to the law of conservation of momentum, at this time the swing car moves forward to maintain the conservation of momentum, and the rolling friction between the wheels and the ground is negligible; when the handlebars are pulled by both hands, the human body and the seat move forward (that is, the swing swings forward), At this time, the swing car as a whole has a tendency to move backward, but because the one-way limit mechanism restricts the front wheel from moving backward, there is a sliding friction force between the wheel and the ground at this time, which breaks the balance of the swing car. The backward momentum of the swing car is offset, and the swing car stops at this time; repeat the above actions, so as to realize the intermittent forward movement of the swing car, which is highly entertaining and easy to operate; the three wheels are overall beautiful and stable. The road adaptability is strong, and the steering is flexible.

Preferably, the cantilever beam has a C-shaped structure, the front end of the front wheel support is provided with a rotating seat, the front end of the cantilever beam is rotatably connected to the swivel seat, and the rear end of the cantilever beam is fixedly connected to the middle part of the rotating shaft. The suspension beam is C-shaped, the overall appearance is beautiful, and the force is even.

Preferably, the suspension beam includes several arc-shaped rods, and the ends of the arc-shaped rods are provided with quick joints, and two adjacent arc-shaped rods are connected by quick joints. The suspension beam can be quickly disassembled for easy handling; the curved rod can be quickly connected through a quick joint, and can be reassembled in no time.

As a preference, the upper end of the front wheel bracket is provided with a sliding sleeve, the middle part of the handlebar is fixed with a sliding rod, the sliding rod is connected to the sliding sleeve, and the outer side of the sliding sleeve is provided with a locking bolt. Sliding sleeves and sliding sleeves can adjust the height of the handlebars to suit different groups of people.

Preferably, foot bars are provided on both sides of the lower end of the seat. After the user sits on the seat, both feet step on the pedal bar, which is convenient for exerting force with both hands.

Preferably, the one-way limiting mechanism is a flywheel, the outer teeth of the flywheel are fixed to the front wheel bracket by bolts, and the inner hole of the flywheel is coaxially fixedly connected with one end of the front wheel shaft. The flywheel is a standard part with good stability and low cost.

Preferably, the one-way limit mechanism includes a ratchet and a pawl sleeve, ratchet teeth are provided on the peripheral surface of the ratchet, the ratchet is fixedly connected to one end of the front wheel shaft, and the lower end of the front wheel bracket is provided with a connecting The side of the pawl cover is fixedly connected with the connection plate bolts, the other side of the pawl cover is provided with an end cover, the inner wall of the pawl cover is provided with a number of pawls, and the pawl and the pawl plate There is a clip spring between them. One-way limit is realized by ratchet and pawl mechanism.

As a preference, a rotating sleeve is provided on the outside of the pawl sleeve, a lead hole is provided at the corresponding position of the pawl sleeve and the pawl, a steel wire is provided at the outer end of the pawl, and one end of the steel wire is connected to the ratchet. The claw is fixedly connected, and the other end of the wire rope is connected to the rotating sleeve through the lead hole; the outer side of the rotating sleeve is provided with a rotating arm, and the handlebar is provided with a reversing handle, and the reversing handle is connected with a cable. The other end of the dragline is connected with the outer end of the rotating arm. Since the swing car can only move forward under the action of the one-way limit mechanism, it usually needs to be reciprocated and adjusted to park the car in place when parking. The car can only be moved out by moving and mediating, and the one-way limit mechanism makes it difficult to park and pick up the swing car; in this structure, when parking and picking up the car, the reversing handle is pulled, and the reversing handle drives the rotating sleeve to rotate an angle through the cable and the rotating arm , when the rotating sleeve rotates, the pawl is pulled by the wire rope. At this time, the pawl and the ratchet are separated, and the one-way limit mechanism is released. At this time, the swing car can move forward and backward, which is convenient for parking and picking up the car; after releasing the reversing handle, the ratchet The claw automatically resets and the ratchet engages to realize one-way limit, which is very convenient to use.

As a preference, a guide seat is provided on the inner side of the lower end of the front wheel bracket, the cable passes through the guide seat, and a return spring is provided on the cable between the guide seat and the rotating arm. There is a limit block for the rotating arm. The back-moving spring is convenient for the reset of the rotating sleeve, and the limit block of the rotating arm is used to limit the limit position of the rotating arm to prevent the rotating arm from turning over.

Preferably, an arc-shaped avoidance groove is provided on the inner wall of the rotating sleeve corresponding to the steel wire rope. When the rotating sleeve rotates, part of the wire rope will enter the part between the rotating sleeve and the ratchet sleeve,

The arc escape groove provides space for this section of wire rope.

Therefore, the utility model has the following beneficial effects: (1) The overall structure is beautiful, stable, and safe to use; (2) The steering is flexible; (3) It is easy to disassemble and assemble, and it is easy to carry; (3) When parking, cooperate with the reversing handle , can quickly park the swing car in place; when picking up the car, cooperate with the reversing handle to make picking up the car more smooth.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is a diagram of the first embodiment of the one-way limiting mechanism.

Fig. 4 is a diagram of the second embodiment of the one-way limiting mechanism.

FIG. 5 is a schematic diagram of the internal structure of FIG. 4 .

Fig. 6 is a schematic diagram of the state of the rotating arm in Fig. 4 after it is rotated.

FIG. 7 is a side sectional view of FIG. 4 .

FIG. 8 is a partially enlarged schematic diagram of FIG. 6 .

In the figure: front wheel 1, rear wheel 2, front wheel bracket 3, sliding sleeve 30, rotating shaft 4, suspension beam 5, arc rod 50, quick joint 51, swivel seat 6, cross bar 7, sling 8, seat 9 , pedal lever 90, handlebar 10, slide bar 11, flywheel 12, ratchet 100, pawl cover 101, ratchet 102, connecting plate 103, pawl 104, compression spring 105, rotating sleeve 106, lead hole 107, wire rope 108, arc avoidance groove 109, rotating arm 110, drag cable 111, guide seat 112, back-moving spring 113, rotating arm limit block 114, end cover 115.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

A kind of swing car structure as shown in Fig. 1 Fig. 2, comprises a front wheel 1 and two rear wheels 2, is provided with front wheel bracket 3 on the front wheel, is connected by rotating shaft 4 between two rear wheels, and front wheel bracket Connect with the rotating shaft by a suspension beam 5, the suspension beam is a C-shaped structure, the front end of the front wheel bracket is provided with a rotating seat 6, the front end of the suspension beam is connected to the rotation seat, and the rear end of the suspension beam is fixedly connected to the middle part of the rotating shaft; the suspension beam 5 includes Several arc bars 50, the ends of the arc bars are provided with quick joints 51, and two adjacent arc bars are connected by quick joints; the suspension beam 5 is provided with a cross bar 7, and the cross bar is vertically fixedly connected with the suspension beam, The two ends of cross bar are provided with sling 8, and seat 9 is suspended between the lower end of sling, and pedal bar 90 is all provided with the lower end both sides of seat, and the upper end of front-wheel vehicle frame is provided with handlebar 10, and The upper end of the wheel support 3 is provided with a sliding sleeve 30, and the middle part of the handlebar is fixed with a slide bar 11, which is slidably connected between the slide bar and the sliding sleeve, and the outside of the sliding sleeve is provided with a locking bolt.

As shown in Figure 3, a one-way limit mechanism for preventing the front wheel from retreating is provided between the front wheel shaft and the lower end of the front wheel bracket. The one-way limit mechanism is a flywheel 12, and the structure of the flywheel is the same as that of the bicycle. The outer teeth of the flywheel are fixed with the front wheel bracket by bolts, and the inner hole of the flywheel is coaxially fixedly connected with one end of the front wheel shaft.

Another embodiment of the one-way limiting mechanism: as shown in Figure 4, Figure 5 and Figure 7, the one-way limiting mechanism includes a ratchet 100, a pawl cover 101, and a ratchet 102 is provided on the peripheral surface of the ratchet, and the ratchet and One end of the front axle is fixedly connected, and the lower end of the front wheel bracket is provided with a connection plate 103, and the side of the pawl cover is fixedly connected with the connection plate bolt, and the other side of the pawl cover 101 is provided with an end cover 115, and the inner wall of the pawl cover is Four ratchets 104 are provided, and a compression spring 105 is arranged between the ratchets and the ratchet plate.

As shown in Figure 8, a rotating sleeve 106 is provided on the outside of the ratchet cover 101, a lead hole 107 is provided at the corresponding position of the ratchet cover and the ratchet, a steel wire rope 108 is provided at the outer end of the ratchet, and one end of the steel wire rope is connected to the ratchet. Fixed connection, the other end of the steel wire rope is connected to the rotating sleeve through the lead hole, and the inner wall of the rotating sleeve is provided with an arc avoidance groove 109 corresponding to the steel wire rope; the outer side of the rotating sleeve is provided with a rotating arm 110, and the handlebar is provided with a reverse The handle and the reversing handle are connected with a cable 111, and the inner side of the lower end of the front wheel bracket is provided with a guide seat 112. The cable passes through the guide seat and is connected with the outer end of the rotating arm. A return spring 113 is provided, and a rotating arm limit block 114 is provided on the connection plate.

Combined with the accompanying drawings, the usage method of the utility model is as follows: the user sits on the seat, holds the handlebars with both hands, pushes the seat backward with both hands (that is, the swing swings backward), and the swing car moves forward at this time A certain distance; pull the handlebar with both hands, the human body and the seat move forward (that is, the swing swings forward). When there is sliding friction between the wheels and the ground, the friction force makes the swing car stop moving; repeat the above actions, so as to realize the intermittent forward movement of the swing car, which is highly entertaining and easy to operate; When driving, pull the reversing handle, and the reversing handle drives the rotating sleeve to rotate an angle through the pull cable and the rotating arm, as shown in Figure 6. When the rotating sleeve rotates, the pawl is pulled by the wire rope. At this time, the pawl and the ratchet are separated, one-way When the limit mechanism is released, the swing car can move forward and backward, which is convenient for reversing, parking, and picking up the car. After the reversing handle is released, the pawl automatically resets and the ratchet meshes to realize one-way limit, which is very convenient to use.

Claims (7)

1. a swing car structure is characterized in that it comprises a front wheel and two rear wheels, the front wheel is provided with a front wheel bracket, and is connected by a rotating shaft between the two rear wheels, and the front wheel bracket is connected with the The rotating shafts are connected by suspension beams, the suspension beams are provided with crossbars, the crossbars are vertically fixedly connected with the suspension beams, the two ends of the crossbars are provided with slings, and a seat is suspended between the lower ends of the slings. , the upper end of the front wheel frame is provided with a handlebar, and a one-way limiting mechanism for preventing the front wheel from retreating is arranged between the front wheel shaft and the lower end of the front wheel bracket. The one-way limiting mechanism includes a ratchet, a ratchet A pawl sleeve, ratchet teeth are provided on the peripheral surface of the ratchet wheel, the ratchet wheel is fixedly connected to one end of the front wheel shaft, a connection plate is provided at the lower end of the front wheel bracket, and the side surface of the pawl sleeve is fixedly connected with the connection plate bolts , the other side of the pawl sleeve is provided with an end cover, the inner wall of the pawl sleeve is provided with several pawls, and a pressure spring is provided between the pawls and the pawl plate. 2. The swing car structure according to claim 1, wherein the suspension beam is in a C-shaped structure, the front end of the front wheel bracket is provided with a swivel seat, and the front end of the suspension beam is connected to the swivel seat in rotation, so that The rear end of the suspension beam is fixedly connected with the middle part of the rotating shaft. 3. The swing car structure according to claim 2, characterized in that, the suspension beam includes several arc rods, the ends of the arc rods are provided with quick joints, and the two adjacent arc rods are connected by fast joints. Joint connection. 4. The swing car structure according to claim 1, 2 or 3, wherein the upper end of the front wheel bracket is provided with a sliding sleeve, the middle part of the handlebar is fixed with a slide bar, and the slide bar It is slidingly connected with the sliding sleeve, and the outer side of the sliding sleeve is provided with locking bolts. 5. The swing car structure according to claim 1, wherein the one-way limiting mechanism is a flywheel, the outer teeth of the flywheel are fixed to the front wheel bracket by bolts, and the inner hole of the flywheel is the same as one end of the front wheel shaft. The shaft is fixedly connected. 6. The swing car structure according to claim 1, characterized in that a rotating sleeve is provided on the outside of the pawl cover, and a lead hole is provided on the corresponding part of the pawl cover and the pawl, and the pawl The outer end of the steel wire rope is provided with a steel wire rope, one end of the steel wire rope is fixedly connected with the pawl, and the other end of the steel wire rope passes through the lead hole to connect with the rotating sleeve; the outer side of the rotating sleeve is provided with a rotating arm, and the handlebar is provided with The reversing handle is connected with a cable, and the other end of the cable is connected with the outer end of the rotating arm. 7. The swing car structure according to claim 6, wherein a guide seat is provided on the inner side of the lower end of the front wheel bracket, the drag cable passes through the guide seat, and the drag cable is located between the guide seat and the rotating arm. A return spring is provided at the intermediate position, and a limit block of the rotating arm is provided on the connecting plate.