阅读说明：本技术 一种儿童车用自动减速安全轮 (Automatic speed reduction safety wheel for children's vehicle ) 是由 解永安 于 2020-06-04 设计创作，主要内容包括：本发明涉及儿童用品技术领域,且公开了一种儿童车用自动减速安全轮,包括支撑轴以及活动套接于支撑轴外部的车轮本体,所述车轮本体的内部固定安装有减速箱,所述减速箱活动套接于支撑轴的外部,且减速箱和支撑轴的活动套接部位采用密封轴承实现转动连接并密封,所述减速箱的内壁固定安装有分隔筒,所述分隔筒为圆筒型。本发明通过在车轮本体内设减速箱,在减速箱内设分隔筒,并向减速箱和分隔筒内填充满水,由于减速箱和分隔筒内均灌满水且由阻尼孔连通,当车速过快时,绞龙叶片驱动水的流动量显著提高,而阻尼孔单位时间内的通行流量有限,从而使得分隔筒内水相对绞龙叶片存在转动阻力,进而可以有效实现自减速。(The invention relates to the technical field of children products, and discloses an automatic speed reduction safety wheel for a children's carriage, which comprises a supporting shaft and a wheel body movably sleeved outside the supporting shaft, wherein a reduction gearbox is fixedly installed inside the wheel body, the reduction gearbox is movably sleeved outside the supporting shaft, the movable sleeved parts of the reduction gearbox and the supporting shaft are rotatably connected and sealed by adopting a sealing bearing, a separation barrel is fixedly installed on the inner wall of the reduction gearbox, and the separation barrel is cylindrical. According to the invention, the reduction gearbox is arranged in the wheel body, the separation barrel is arranged in the reduction gearbox, and the reduction gearbox and the separation barrel are filled with water, and because the reduction gearbox and the separation barrel are filled with water and communicated by the damping hole, when the vehicle speed is too high, the flow quantity of water driven by the auger blade is obviously improved, and the flow rate of the damping hole in unit time is limited, so that the water in the separation barrel has rotational resistance relative to the auger blade, and further, the self-deceleration can be effectively realized.)

1. The utility model provides an automobile-used automatic deceleration safety wheel of children, cup joints in wheel body (2) of back shaft (1) outside including back shaft (1) and activity, its characterized in that: the utility model discloses a wheel structure, including wheel body (2), the inside fixed mounting of wheel body (2) has reducing gear box (4), reducing gear box (4) activity is cup jointed in the outside of back shaft (1), and the activity of reducing gear box (4) and back shaft (1) cup joints the position and adopts sealed bearing (5) to realize rotating the connection and seal, the inner wall fixed mounting of reducing gear box (4) has a separation section of thick bamboo (6), it is the drum type to separate a section of thick bamboo (6), it cup joints with back shaft (1) activity to separate a section of thick bamboo (6) one side of separating a section of thick bamboo (6) has seted up damping hole (7) the outer wall of back shaft (1) and the inner chamber fixed mounting that is located a separation section of thick bamboo (6) have auger blade (8) reducing gear box (4) top lateral wall fixed mounting has notes liquid pipe (10), the other end of annotating liquid pipe (10) is connected to the lateral wall of wheel body (2) annotate liquid pipe.

2. The automatic deceleration safety wheel for children's vehicles according to claim 1, wherein: the other side of the outer wall of the reduction gearbox (4) is symmetrically provided with another liquid injection pipe (10), and the end part of the liquid injection pipe (10) is plugged on the inner wall of the wheel body (2).

3. The automatic deceleration safety wheel for children's vehicles according to claim 1, wherein: the end part of the sealing bearing (5) positioned on the inner wall of the reduction gearbox (4) is an arc-shaped circumferential surface, and the arc-shaped circumferential surface corresponds to the end surface of the auger blade (8).

4. The automatic deceleration safety wheel for children's vehicles according to claim 1, wherein: a warning device (9) is arranged at one end of the damping hole (7) and outside the separating cylinder (6), the warning device (9) comprises a guide cylinder (91), a valve port (92), a tension spring (93) and a valve plate (94), one end of the guide cylinder (91) is fixedly sleeved at the end of the reduction gearbox (4) and extends to the outer side wall of the wheel body (2), the other end of the guide cylinder (91) faces the port of the damping hole (7), the valve port (92) is arranged in the guide cylinder (91) and is integrally formed with the guide cylinder (91), the valve port (92) is in a variable cross-section shape and is in a circular truncated cone shape, the tension spring (93) is sleeved outside the valve port (92), one end of the tension spring (93) is fixedly connected to the inner end of the guide cylinder (91), the other end of the tension spring (93) is fixedly connected to one side of the valve plate (94), and the valve plate (94) is used for sealing the port of the valve port (92, the tension spring (93) is in a state of being stretched and rebounded.

Technical Field

The invention relates to the technical field of children products, in particular to an automatic deceleration safety wheel for a children's carriage.

Background

The children's vehicle is divided into two-wheel scooter, three-wheel and four-wheel vehicles, wherein, the three-wheel and four-wheel children's vehicles have two types of foot power and electric power. In daily use, because children lack of awareness of danger, when the children use the children, the children often turn over and fall due to too high sliding speed, and particularly, dangerous accidents are more easily caused in the sprint stage of a downhill road section. The electric power cart has an upper limit of a rated speed, but the electric power cart is more frequently subjected to rollover due to an excessively high speed on a downhill road, and accidents such as rollover collision due to overlooking or untimely interception even if an adult attends the electric power cart are caused because the electric power cart has a defect in controlling the speed of the electric power cart, and the problem is solved.

Disclosure of Invention

Aiming at the defects of the prior child vehicle in the using process of the wheels in the background technology, the invention provides the automatic deceleration safety wheel for the child vehicle, which has the advantages of automatic deceleration at high speed and danger warning signal for guardians, and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides an automatic speed reduction safety wheel for children's carriage, cup joints in the outside wheel body of back shaft including back shaft and activity, the inside fixed mounting of wheel body has the reducing gear box, the reducing gear box activity cup joints in the outside of back shaft, and the activity of reducing gear box and back shaft cup joints the position and adopts sealed bearing to realize rotating the connection and sealed, the inner wall fixed mounting of reducing gear box has a separation section of thick bamboo, it is the drum type to separate a section of thick bamboo, it cup joints with the back shaft activity to separate a section of thick bamboo one side of having seted up the damping hole the outer wall of back shaft and the inner chamber fixed mounting who is located a separation section of thick bamboo have auger blade the lateral wall fixed mounting of reducing gear box top has annotates the liquid pipe, annotate the other end of liquid pipe and be connected to the lateral wall.

Preferably, the other side of the outer wall of the reduction gearbox is symmetrically provided with another liquid injection pipe, and the end part of the liquid injection pipe is plugged on the inner wall of the wheel body.

Preferably, the end part of the sealing bearing, which is positioned on the inner wall of the reduction gearbox, is an arc-shaped circumferential surface, and the arc-shaped circumferential surface corresponds to the end surface of the auger blade.

Preferably, a warning device is arranged at one end of the damping hole and outside the separating cylinder, the warning device includes a guide cylinder, a valve port, a tension spring and a valve plate, one end of the guide cylinder is fixedly sleeved at the end of the reduction gearbox and extends to the outer side wall of the wheel body, the other end of the guide cylinder faces a port of the damping hole, the valve port is arranged in the guide cylinder and is integrally formed with the guide cylinder, the valve port is in a variable cross-section shape and is in a circular truncated cone shape, the tension spring is sleeved outside the valve port, one end of the tension spring is fixedly connected to the inner end of the guide cylinder, the other end of the tension spring is fixedly connected to one side of the valve plate, the valve plate is used for sealing the port of the valve port, and the tension spring.

The invention has the following beneficial effects:

1. according to the invention, the reduction gearbox is arranged in the wheel body, the separation barrel is arranged in the reduction gearbox, water is filled in the reduction gearbox and the separation barrel, in the process of rotating the wheel body, when the reduction gearbox and the separation barrel rotate relative to the supporting shaft, the auger blade arranged on the supporting shaft drives the water in the separation barrel to flow to one end of the separation barrel, and as the reduction gearbox and the separation barrel are filled with water and communicated through the damping hole, the driven and flowing water enters the other end of the separation barrel through the damping hole.

2. According to the invention, by designing the liquid injection pipe and the water injection plug, a child guardian can selectively inject water into the reduction gearbox and the separating cylinder according to the use requirement, the wheel body does not have a self-deceleration effect under the condition of no water injection, the wheel body has the self-deceleration effect under the condition of water injection, and the injected water is common and cheap in life, so that the use cost is low, and the selectivity of practical use is enhanced.

3. According to the invention, the warning device is arranged near the end part of the damping hole, when the wheel body rotates at a high speed, the jet speed of water flow discharged from the damping hole is higher, namely, higher water flow impact force is generated, so that the valve plate can be impacted to open the port of the valve port, and part of water in the reduction gearbox flows out from the guide cylinder.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic view illustrating an opened state of the valve plate of fig. 2 according to the present invention.

In the figure: 1. a support shaft; 2. a wheel body; 3. a load bearing; 4. a reduction gearbox; 5. sealing the bearing; 6. a separation cylinder; 7. a damping hole; 8. a screw blade; 9. a warning device; 91. a draft tube; 92. a valve port; 93. a tension spring; 94. a valve plate; 10. a liquid injection pipe; 11. and (4) a water injection plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an automatic deceleration safety wheel for a children's carriage comprises a support shaft 1 and a wheel body 2 movably sleeved outside the support shaft 1, wherein the support shaft 1 and the wheel body 2 are movably sleeved by a bearing 3, the support shaft 1 is fixedly mounted on a support part (not shown in the figure) of a child carriage, the wheel body 2 rotates relative to the support shaft 1, the bearing 3 is a rotation support part, a reduction gearbox 4 is fixedly mounted inside the wheel body 2 in a manner that four rigid rods are respectively adopted at the left side and the right side of the reduction gearbox 4 to be fixedly connected to the inner side wall of the wheel body 2, the reduction gearbox 4 is movably sleeved outside the support shaft 1, the movable sleeved part of the reduction gearbox 4 and the support shaft 1 is rotatably connected and sealed by a seal bearing 5, a separation cylinder 6 is fixedly mounted on the inner wall of the reduction gearbox 4, the separating cylinder 6 is cylindrical, the separating cylinder 6 divides the inner cavity of the reduction gearbox 4 into a left cavity and a right cavity, whether the reduction gearbox 4 and the separating cylinder 6 are filled with water or not can be selected according to requirements, the separating cylinder 6 is movably sleeved with the supporting shaft 1, and the reserved aperture gap of the sleeved part of the separating cylinder 6 and the supporting shaft 1 exceeds 2cm, wherein the wheel body 2, the reduction gearbox 4 and the separating cylinder 6 all use the supporting shaft 1 as a movable central shaft, one side of the separating cylinder 6 is provided with a damping hole 7, the outer wall of the supporting shaft 1 and the inner cavity of the separating cylinder 6 are fixedly provided with an auger blade 8, the auger blade 8 is used for discharging water in the separating cylinder 6 to one end of the separating cylinder 6 (taking figure 1 as an example, the water in the separating cylinder 6 is discharged leftwards), a liquid injection pipe 10 is fixedly arranged on the side wall above the reduction gearbox 4, the other end of the liquid injection pipe 10 is connected to the side wall of the wheel body 2, a matched water injection, in order to ensure the compression stability of the water filling plug 11, the liquid filling pipe 10 and the water filling plug 11 can be connected by screw threads.

For convenience of understanding, the inner cavity of the reduction gearbox 4 is divided into a left cavity and a right cavity by taking the separating cylinder 6 as a boundary, wherein the left cavity is an a cavity and the right cavity is a b cavity, and the reference is made to the attached drawing 1:

therefore, after the reduction gearbox 4 and the separating cylinder 6 are filled with water through the liquid injection pipe 10, the wheel body 2 can drive the a chamber to contain water to rotate when the reduction gearbox 4 and the separating cylinder 6 rotate synchronously in the rotating process, so that the auger blade 8 drives the water to flow transversely, and the water flowing to the inner end part of the reduction gearbox 4 can enter the b chamber through the damping hole 7 after generating a gathering effect. When the wheel body 2 rotates slowly (namely the vehicle speed is slow), the water flow passing amount of the damping holes 7 just meets the water discharge amount of the auger blades 8; when the rotating speed of the wheel body 2 is high (namely the vehicle speed is high), the water flow passing amount of the damping hole 7 cannot meet the water displacement of the auger blade 8, and at the moment, water can be retained at the inner end part of the cavity a, so that the water rotates to generate resistance, and the effect of automatic speed reduction when the vehicle speed is high is achieved.

Wherein, for making auger blade 8 can stabilize the drainage when wheel body 2 rotates and not rely on the frictional force of separating 6 inner walls of a section of thick bamboo and water, can install auger blade 8 on separating the inner wall of a section of thick bamboo 6, separate 6 inner walls fixed mounting of a section of thick bamboo promptly and have the spiral plate, like this, the spiral plate is along with separating 6 rotations of a section of thick bamboo, can stably carry out the rivers and flow.

The number and the aperture of the damping holes 7 can be determined according to the designed speed of the baby carriage, and the required drainage speed of the damping holes 7 can be designed according to the drainage corresponding to the rotating speed of the auger blade 8 in principle, so that the aperture size and the number of the damping holes 7 can be designed.

Wherein, for making the rotational balance of wheel body 2, be equipped with another notes liquid pipe 10 in the outer wall opposite side symmetry of reducing gear box 4, and should annotate the tip of liquid pipe 10 for the shutoff is on the inner wall of wheel body 2.

In order to enable the water flow of the auger blade 8 to move stably to enter the outer containing cavity of the separating cylinder 6 through the damping hole 7 so as to form stable backflow, the end part of the sealing bearing 5, which is positioned on the inner wall of the reduction gearbox 4, is set to be an arc-shaped circumferential surface, and the arc-shaped circumferential surface corresponds to the end surface of the auger blade 8, so that the water flow of the auger blade 8 does not generate backflow phenomenon after being guided by the sealing bearing 5.

Wherein, a warning device 9 is arranged at one end of the damping hole 7 and outside the separation cylinder 6, the warning device 9 includes a draft tube 91, a valve port 92, a tension spring 93 and a valve plate 94, one end of the draft tube 91 is fixedly sleeved at the end of the reduction gearbox 4 and extends to the outer side wall of the wheel body 2, the other end of the draft tube 91 faces the port of the damping hole 7, the valve port 92 is arranged in the draft tube 91 and is integrally formed with the draft tube 91, the valve port 92 is in a variable cross-section shape and is in a circular truncated cone shape, the tension spring 93 is sleeved outside the valve port 92, one end of the tension spring 93 is fixedly connected to the inner end of the draft tube 91, the other end of the tension spring 93 is fixedly connected to one side of the valve plate 94, the valve plate 94 is used for closing the port of the valve port 92, and the tension spring.

When the wheel body 2 rotates too fast, the amount of water discharged by the auger blade 8 is increased, the amount of water flowing through the damping hole 7 reaches the maximum, namely the jet flow of the damping hole 7 reaches the maximum speed, the water of the jet flow impacts the valve plate 94, the impact force overcomes the tensile force of the tension spring 93, so that the valve plate 94 leaves the end part of the valve port 92, as shown in fig. 3, at the moment, the water in the reduction box 4 flows out of the guide cylinder 91 and is exposed on the ground, and the walking path of the wheel body 2 is traveled, so that the attention of a guardian is prompted, and the child is in dangerous play action and needs to concentrate on or stop in time. When the vehicle speed returns to normal, the valve plate 94 will continue to abut against the end of the valve port 92 under the pulling force of the tension spring 93 to complete the sealing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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