Child tricycle

Abstract

The utility model discloses a child tricycle, which relates to the field of child tricycles and is characterized in that the child tricycle comprises a main beam, a rear wheel assembly is arranged at one end of the main beam, a front wheel assembly is arranged at the other end of the main beam, the rear wheel assembly comprises a rear axle seat and a tricycle rear wheel which are fixedly connected with the main beam, and the rear axle seat is rotatably connected with two symmetrically arranged rear wheel swing arms. A first rear wheel axle is arranged at the end, away from the rotating joint, of the rear wheel swing arm, a second rear wheel axle is arranged at the end, away from the first rear wheel axle, of the rear wheel swing arm and located on the side face of the rear wheel swing arm, and the first rear wheel axle and the second rear wheel axle are detachably connected with the rear wheel. The rear axle seat is provided with a locking mechanism used for locking and releasing the second rear wheel axle, the main beam is provided with a limiting assembly, the limiting assembly has a limiting state and a releasing state, the child tricycle is provided with the rear wheel assembly, so that the child tricycle can be changed into a tricycle using state and a balance vehicle using state, and more diversified choices can be provided.

Description

Technical Field

[0001] The utility model relates to the field of children's tricycles, and more specifically, to a children's tricycle. Background Art

[0002] The children's tricycle in the prior art includes a main beam, one end of which is provided with a rear wheel assembly, and the other end of which is provided with a front wheel assembly, wherein the rear wheel assembly is provided with two driven rear wheels; the front wheel assembly includes a front fork, a front wheel arranged at the bottom of the front fork, and a handlebar arranged at the top of the front fork and used to control the steering of the front wheel.

[0003] The distance between the two rear wheels of the current children's tricycle is relatively large, which makes the tricycle have a more balanced structure and is not easy to tip over when in use. There is also a children's balance car on the market that can better exercise children's balance. The total width of the rear wheels of the balance car is smaller than the total width of the rear wheels of the tricycle. For younger children, it is more suitable to play with a tricycle, and for older children, it is more suitable to play with a balance car. Therefore, two types of cars need to be prepared. Therefore, the applicability of the children's tricycle on the market is not wide enough.

[0004] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a children's tricycle with two forms and wider applicability.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: the children's tricycle comprises a main beam, one end of the main beam is provided with a rear wheel assembly, and the other end is provided with a front wheel assembly, the rear wheel assembly comprises a rear axle seat fixedly connected to the main beam and a rear wheel, two symmetrically arranged rear wheel swing arms are rotatably connected to the rear axle seat, one end of the rear wheel swing arm away from the rotation connection is provided with a rear wheel axle 1, one end of the rear wheel swing arm away from the rear wheel axle 1 is provided with a rear wheel axle 2 and the rear wheel axle 2 is located on the side of the rear wheel swing arm, the rear wheel axle 1 and the rear wheel axle 2 are both detachably connected to the rear wheel, a locking mechanism for locking and releasing the rear wheel axle 2 is provided on the rear axle seat, a limiting assembly is provided on the main beam, the limiting assembly has a limiting state and a releasing state, the limiting assembly switches between the limiting state and the releasing state, when the limiting assembly is in the limiting state, it is located on the deflection path of the rear wheel swing arm, when the limiting assembly is in the releasing state, it is separated from the deflection path of the rear wheel swing arm.

[0007] The utility model is further configured as follows: the locking mechanism includes a locking groove and a locking pin that can be used to cover the opening of the locking groove, and an unlocking button; the locking pin is slidably connected to the inner wall of the locking groove; the locking pin exists in state one and state two; the locking pin maintains state one in a natural state; after the unlocking button is triggered, the locking pin is in state two; when the locking pin is in state one, it is located on the deflection path of the rear wheel axle two; when the locking pin is in a released state, it is disengaged from the deflection path of the rear wheel axle two.

[0008] The utility model is further configured as follows: the unlocking button and the locking pin are fixedly connected and the unlocking button is used to drive the locking pin, and the locking mechanism also includes an elastic member, which is used to keep the locking pin in a natural state to cover the opening of the locking groove.

[0009] The utility model is further configured as follows: the limiting assembly is a sliding sleeve slidably connected to the main beam; when the sliding sleeve is in a limiting state, the sliding sleeve is simultaneously sleeved on the outer sides of the main beam and the rear wheel swing arm; when the sliding sleeve is in a released state, the sliding sleeve is only sleeved on the outer side of the main beam.

[0010] The utility model is further configured as follows: a gap is provided between the inner bottom surface of the sliding sleeve and the bottom surface of the main beam, a seat adjustment assembly is provided in the gap, the seat adjustment assembly includes a rotating knob, the middle part of the rotating knob is rotatably connected to the sliding sleeve, one end of the rotating knob is a pressing end, and the other end is a snap-in end, a plurality of adjustment holes matching the snap-in ends are provided on the bottom surface of the main beam, the adjustment holes are arranged in sequence along the length direction of the main beam, and the snap-in end and the sliding sleeve are provided with springs for keeping the snap-in ends snapped into the adjustment holes in a natural state.

[0011] The utility model is further configured as follows: a vehicle seat connecting seat is arranged on the top surface of the sliding sleeve, and the vehicle seat connecting seat comprises a connecting tube, and a vehicle seat is detachably connected to the connecting tube.

[0012] The utility model is further configured as follows: the main beam has an I-shaped cross-section, and receiving grooves are formed on both side surfaces of the main beam having an I-shaped cross-section, and the receiving grooves match the rear wheel swing arm, and when the rear wheel swing arm is in a state of being in contact with the main beam, the rear wheel swing arm is embedded in the receiving groove.

[0013] The utility model is further configured as follows: a magnet matching with the wheel axle 1 is arranged on the main beam, and the magnet is used to attract the wheel axle 1 when the rear wheel swing arm is in a state of being in contact with the main beam.

[0014] The utility model is further configured as follows: the front wheel assembly comprises a front fork detachably connected to the main beam, and the front fork comprises a connection port matched with the main beam.

[0015] The utility model is further configured as follows: a rotating shaft is arranged in the rear axle seat, the two rear wheel swing arms are both rotatably connected to the rotating shaft, the top of the rotating shaft extends to the upper surface of the rear axle seat, and a connecting hole is opened on the top surface of the rotating shaft.

[0016] In summary, the utility model has the following beneficial effects:

[0017] The utility model is provided with a rear wheel assembly, which includes a rear axle seat fixedly connected to the main beam and a rear wheel, the rear axle seat is rotatably connected with two symmetrically arranged rear wheel swing arms, the rear wheel swing arms are provided with a rear wheel shaft 1 and a rear wheel shaft 2, the rear wheel shaft 1 and the rear wheel shaft 2 are both detachably connected to the rear wheel, the rear axle seat is provided with a locking mechanism for locking and releasing the rear wheel shaft 2, and the main beam is provided with a limited position assembly. The children's tricycle includes two use states, use state one: the two rear wheel swing arms are unfolded, the two rear wheel swing arms are in the same state, and the rear wheel shaft is in the same state. The rear wheel swing arm and the main beam together form a Y shape. At this time, the rear wheel axle two is locked by the locking mechanism, and the rear wheel swing arm is released by the limiting assembly, and the wheel is connected to the rear wheel axle one; usage state two: the two rear wheel swing arms fit the main beam, and the two rear wheel swing arms and the main beam together form a straight line. At this time, the rear wheel axle two is released by the locking mechanism, and the rear wheel swing arm is limited by the limiting assembly, and the wheel is connected to the rear wheel axle two. This children's tricycle has two usage states, which can provide more diverse choices and make it more widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the rear wheel assembly and the main beam of the utility model;

[0020] Figure 3 It is a partial cross-sectional view of the rear wheel assembly and the main beam of the utility model;

[0021] Figure 4 It is a cross-sectional view of the main beam in the utility model;

[0022] Figure 5 This is a structural schematic diagram of the utility model in use state 1;

[0023] Figure 6 This is a structural schematic diagram of the utility model in the second use state.

[0024] In the figure: 1. main beam; 2. rear axle seat; 3. rear wheel; 4. rear wheel swing arm; 5. rear wheel axle 1; 6. rear wheel axle 2; 7. unlocking button; 8. locking pin; 9. sliding sleeve; 10. rotating button; 11. pressing end; 12. snap-in end; 13. adjustment hole; 14. connecting tube; 15. magnet; 16. receiving groove. DETAILED DESCRIPTION

[0025] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Embodiment: Children's tricycle, such as Figure 1-Figure 3 As shown, it comprises a main beam 1, one end of the main beam 1 is provided with a rear wheel assembly, and the other end is provided with a front wheel assembly, the front wheel assembly comprises a steering wheel fixedly connected to the handlebar, and a pedal is provided on the steering wheel, the rear wheel assembly comprises a rear axle seat 2 fixedly connected to the main beam 1 and a rear wheel 3, the rear axle seat 2 is rotatably connected with two symmetrically arranged rear wheel swing arms 4, one end of the rear wheel swing arm 4 away from the rotating connection is provided with a rear wheel axle 1 5, and the other end of the rear wheel swing arm 4 away from the rear wheel axle 1 5 is provided with a rear wheel axle 2 6, and the rear wheel axle 2 6 is located on the side of the rear wheel swing arm 4 The rear wheel axle 1 5 and the rear wheel axle 2 6 are both detachably connected to the rear wheel 3. A locking mechanism for locking and releasing the rear wheel axle 2 6 is provided on the rear axle seat 2. A limit assembly is provided on the main beam 1. The limit assembly has a limit state and a release state. The limit assembly switches between the limit state and the release state. When the limit assembly is in the limit state, it is located on the deflection path of the rear wheel swing arm 4. When the limit assembly is in the release state, it is separated from the deflection path of the rear wheel swing arm 4. The children's tricycle includes two use states. Use state one, such as Figure 5 As shown: the two rear wheel swing arms 4 are unfolded, and the two rear wheel swing arms 4 and the main beam 1 together present a Y shape. At this time, the rear wheel axle 2 6 is locked by the locking mechanism, and the rear wheel swing arms 4 are released by the limit assembly, and the wheel is connected to the rear wheel axle 1 5; the second use state, such as Figure 6 As shown: the two rear wheel swing arms 4 are attached to the main beam 1, and the two rear wheel swing arms 4 and the main beam 1 are in a straight line shape. At this time, the rear wheel axle 2 6 is released by the locking mechanism, and the rear wheel swing arms 4 are limited by the limiting assembly. The wheels are connected to the rear wheel axle 2 6. The children's tricycle can be in the use state ( Figure 5 ) and use status 2 ( Figure 6 ), when the children's tricycle is changed from use state one to use state two, first remove the wheel from the rear wheel axle one 5, then release the lock of the locking mechanism on the rear wheel axle two 6, then adjust the limit assembly to the release state, when the rear wheel swing arm 4 is completely in contact with the main beam 1, adjust the limit assembly to the limit state, and finally install the wheel on the rear wheel axle two 6, so that the children's tricycle can be changed from use state one to use state two. Similarly, when the children's tricycle is changed from use state two to use state one, the reverse operation can be performed. The present children's tricycle has two use states, use state one is the tricycle state, and use state two is the balance car state, which can provide more diverse choices and make it more widely applicable.

[0027] like Figure 2 , Figure 3As shown, the locking mechanism includes a locking groove and a locking pin 8 that can be used to cover the opening of the locking groove and an unlocking button 7. The locking pin 8 is slidably connected to the inner wall of the locking groove. The locking pin 8 exists in state one and state two. The locking pin 8 maintains state one in the natural state. After the unlocking button 7 is triggered, the locking pin 8 is in state two. When the locking pin 8 is in state one, it is located on the deflection path of the rear wheel axle 2 6. When the locking pin 8 is in the released state, it is separated from the deflection path of the rear wheel axle 2 6. The unlocking button 7 and the locking pin 8 are fixedly connected and the unlocking button 7 and the locking pin 8 have the same movement direction and movement stroke. The locking mechanism also includes an elastic member, an elastic member The component is used to keep the locking pin 8 covering the opening of the locking groove in a natural state. In state one, the unlocking button 7 is not pressed, and the rear wheel axle 2 6 in the locking groove will be blocked by the locking pin 8, thereby keeping the rear wheel axle 2 6 in the locking groove, that is, maintaining the position of the rear wheel swing arm 4. By pressing the unlocking button 7, the unlocking button 7 will link the locking pin 8 to move, and the rear wheel axle 2 6 will lose the obstruction of the locking pin 8 and can rotate out of the locking groove, that is, the rear wheel swing arm 4 is not locked by the locking mechanism and can rotate freely. Release the unlocking button 7, and the unlocking button 7 will return to its original state under the action of the elastic component, that is, the locking mechanism automatically changes to state one.

[0028] like Figure 2 , Figure 3 As shown, the limiting component is a sliding sleeve 9 slidably connected to the main beam 1. When the sliding sleeve 9 is in a limited state, the sliding sleeve 9 is simultaneously sleeved on the outer sides of the main beam 1 and the rear wheel swing arm 4. When the sliding sleeve 9 is in a released state, the sliding sleeve 9 is only sleeved on the outer side of the main beam 1. The sliding sleeve 9 is simultaneously sleeved on the outer sides of the main beam 1 and the rear wheel swing arm 4, which can block the rear wheel swing arm 4 and prevent the rear wheel swing arm 4 from rotating. The sliding sleeve 9 is only sleeved on the outer side of the main beam 1, so it naturally does not block the rotation of the rear wheel swing arm 4.

[0029] like Figure 4 As shown, a gap is provided between the inner bottom surface of the sliding sleeve 9 and the bottom surface of the main beam 1, and a seat adjustment component is provided in the gap. The seat adjustment component includes a rotating knob 10, and the middle part of the rotating knob 10 is rotatably connected to the sliding sleeve 9. One end of the rotating knob 10 is a pressing end 11, and the other end is a snap-in end 12. A plurality of adjustment holes 13 matching the snap-in ends 12 are provided on the bottom surface of the main beam 1, and the adjustment holes 13 are arranged in sequence along the length direction of the main beam 1. The snap-in ends 12 and the sliding sleeve 9 are provided with springs for keeping the snap-in ends 12 snapped into the adjustment holes 13 in a natural state. When the pressing end 11 is pressed, the snap-in end 12 will also rotate accordingly and finally leave the adjustment hole 13. At this time, the sliding sleeve 9 can slide freely. After adjusting the position, release the rotating knob 10. Under the action of the spring, the snap-in end 12 can be snapped into the adjustment hole 13, and the sliding sleeve 9 is fixed again, thereby realizing the sliding and fixation of the sliding sleeve 9.

[0030] like Figure 3 , Figure 4As shown, a vehicle seat connecting seat is arranged on the top surface of the sliding sleeve 9, and the vehicle seat connecting seat comprises a connecting tube 14, to which the vehicle seat is detachably connected, and the vehicle seat can be removed for more convenient storage and transportation.

[0031] The main beam 1 has an I-shaped cross-section. The I-shaped main beam 1 has better compressive resistance and can also reduce the weight of the main beam 1. Receiving grooves 16 are naturally formed on both sides of the main beam 1 with an I-shaped cross-section. The receiving grooves 16 match the rear wheel swing arm 4. When the rear wheel swing arm 4 is in a state of fitting the main beam 1, the rear wheel swing arm 4 is embedded in the receiving groove 16. When the rear wheel swing arm 4 is in a state of fitting the main beam 1, it has a smaller usage volume and is more flexible.

[0032] A magnet 15 matching the wheel axle 1 is provided on the main beam 1. The magnet 15 is used to attract the wheel axle 1 when the rear wheel swing arm 4 is in a state of being in contact with the main beam 1. When the rear wheel swing arm 4 is rotated to make it in contact with the main beam 1, the magnet 15 can attract the wheel axle 1. The magnet 15 can simply fix the wheel axle 1 to prevent it from rotating, making it convenient to use the limiting component to limit the rear wheel swing arm 4 later.

[0033] The front wheel assembly includes a front fork detachably connected to the main beam 1. The main beam 1 and the front fork can be connected by screws. The front fork includes a connecting port that matches the main beam 1. During transportation and storage, the front fork can be removed from the main beam 1 to reduce the storage volume and facilitate storage.

[0034] A rotating shaft is arranged in the rear axle seat 2, and the two rear wheel swing arms 4 are rotatably connected to the rotating shaft. The top of the rotating shaft extends to the upper surface of the rear axle seat 2, and a connecting hole is opened on the top surface of the rotating shaft. The connecting hole can be threadedly connected to expansion modules such as a truck bed and a cart push rod, and has good expandability.

[0035] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A children's tricycle, comprising a main beam (1), one end of the main beam (1) being provided with a rear wheel assembly, and the other end of the main beam (1) being provided with a front wheel assembly, characterized in that: The rear wheel assembly comprises a rear axle seat (2) fixedly connected to the main beam (1) and a rear wheel (3); the rear axle seat (2) is rotatably connected to two symmetrically arranged rear wheel swing arms (4); a rear wheel axle 1 (5) is arranged at one end of the rear wheel swing arm (4) away from the rotatable connection; a rear wheel axle 2 (6) is arranged at one end of the rear wheel swing arm (4) away from the rear wheel axle 1 (5); and the rear wheel axle 2 (6) is located on the side of the rear wheel swing arm (4); the rear wheel axle 1 (5) and the rear wheel axle 2 (6) are arranged on the side of the rear wheel swing arm (4); ) are detachably connected to the rear wheel (3) of the vehicle, the rear axle seat (2) is provided with a locking mechanism for locking and releasing the rear wheel axle 2 (6), the main beam (1) is provided with a limit assembly, the limit assembly has a limit state and a release state, the limit assembly switches between the limit state and the release state, when the limit assembly is in the limit state, it is located on the deflection path of the rear wheel swing arm (4), when the limit assembly is in the release state, it is separated from the deflection path of the rear wheel swing arm (4).

2. The children's tricycle according to claim 1, characterized in that: The locking mechanism comprises a locking groove, a locking pin (8) capable of covering an opening of the locking groove, and an unlocking button (7); the locking pin (8) is slidably connected to the inner wall of the locking groove; the locking pin (8) has a first state and a second state; the locking pin (8) maintains the first state in a natural state; after the unlocking button (7) is triggered, the locking pin (8) is in the second state; when the locking pin (8) is in the first state, it is located on the deflection path of the second rear wheel axle (6); when the locking pin (8) is in the released state, it is separated from the deflection path of the second rear wheel axle (6).

3. The children's tricycle according to claim 2, characterized in that: The unlocking button (7) and the locking pin (8) are fixedly connected and the unlocking button (7) is used to drive the locking pin (8). The locking mechanism also includes an elastic member, which is used to keep the locking pin (8) in a natural state to cover the opening of the locking groove.

4. The children's tricycle according to claim 1, characterized in that: The limiting assembly is a sliding sleeve (9) slidably connected to the main beam (1); when the sliding sleeve (9) is in a limiting state, the sliding sleeve (9) is simultaneously sleeved on the outside of the main beam (1) and the rear wheel swing arm (4); when the sliding sleeve (9) is in a released state, the sliding sleeve (9) is only sleeved on the outside of the main beam (1).

5. The children's tricycle according to claim 4, characterized in that: A gap is provided between the inner bottom surface of the sliding sleeve (9) and the bottom surface of the main beam (1), and a seat adjustment component is provided in the gap. The seat adjustment component comprises a rotating knob (10), the middle portion of which is rotatably connected to the sliding sleeve (9), one end of the rotating knob (10) is a pressing end (11), and the other end is a snap-in end (12), a plurality of adjustment holes (13) matching the snap-in ends (12) are provided on the bottom surface of the main beam (1), the adjustment holes (13) are arranged in sequence along the length direction of the main beam (1), and the snap-in ends (12) and the sliding sleeve (9) are provided with springs for keeping the snap-in ends (12) snapped into the adjustment holes (13) in a natural state.

6. The children's tricycle according to claim 5, characterized in that: A vehicle seat connecting seat is provided on the top surface of the sliding sleeve (9), and the vehicle seat connecting seat comprises a connecting tube (14), and a vehicle seat is detachably connected to the connecting tube (14).

7. The children's tricycle according to claim 1, characterized in that: The cross-sectional shape of the main beam (1) is an I-shaped beam, and receiving grooves (16) are formed on two side surfaces of the main beam (1) having an I-shaped cross-sectional shape. The receiving grooves (16) match the rear wheel swing arm (4), and when the rear wheel swing arm (4) is in a state of being in contact with the main beam (1), the rear wheel swing arm (4) is embedded in the receiving groove (16).

8. The children's tricycle according to claim 1, characterized in that: The main beam (1) is provided with a magnet (15) matching the wheel axle one, and the magnet (15) is used to attract the wheel axle one when the rear wheel swing arm (4) is in a state of being in contact with the main beam (1).

9. The children's tricycle according to claim 1, characterized in that: The front wheel assembly comprises a front fork detachably connected to the main beam (1), and the front fork comprises a connection port matching the main beam (1).

10. The children's tricycle according to claim 1, characterized in that: A rotating shaft is arranged in the rear axle seat (2), and the two rear wheel swing arms (4) are both rotatably connected to the rotating shaft. The top of the rotating shaft extends to the upper surface of the rear axle seat (2), and a connecting hole is provided on the top surface of the rotating shaft.

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