A children's car

Abstract

The present invention relates to the technical field of daily necessities, and specifically to a baby stroller, comprising a stroller body, a PVC rigid sealing frame is arranged at the lower side of the bottom shelf of the stroller body, the PVC rigid sealing frame is arranged at the lower side of the storage net bag of the stroller body, and an electric component is arranged in the PVC rigid sealing frame; a power-assisting device and a braking device are also connected to the wheels of the stroller body, a power-assisting switch is arranged at the upper part of the stroller body, and the power-assisting switch is electrically connected to the electric component. A power-assisting device is installed on the existing stroller body, and the power-assisting device is used to assist the wheels on the stroller body, providing a more labor-saving service for the user. Compared with the non-powered baby strollers in the prior art, it is easier and more convenient to use; in addition, a braking device is also arranged, which can slow down the stroller body when it is necessary to slow down or when going downhill, effectively improving the safety performance of the baby stroller.

Description

Technical Field

[0001] The present invention relates to the technical field of daily necessities, and in particular to a baby carriage. Background Art

[0002] Children's bicycles are a major category of children's toys, which include four categories: children's bicycles, strollers, baby walkers, and children's tricycles. The applicable age range of children is 4 to 8 years old. When purchasing, you should consider the age and height of the child and choose the appropriate size, that is, a bicycle with a saddle height within the range of 435 to 635mm. When purchasing a vehicle, you should pay attention to the size of the handbrake handle. When buying a children's bicycle, you should also pay attention to the age group logo and buy appropriate products according to the child's age.

[0003] In the prior art, children's strollers are pushed by adults to move, which does not cause many problems on flat ground; but when encountering uphill or downhill situations, there is no power assistance or brake, which correspondingly brings certain risks. Summary of the invention

[0004] In response to the problem, the present invention provides a children's vehicle, comprising a vehicle body, a PVC rigid sealing frame is arranged on the lower side of the bottom storage frame of the vehicle body, the PVC rigid sealing frame is arranged on the lower side of the storage net bag of the vehicle body, and an electric component is arranged in the PVC rigid sealing frame; the wheels of the vehicle body are also connected to a power-assisting device and a braking device, and a power-assisting switch is arranged on the upper part of the vehicle body, and the power-assisting switch is electrically connected to the electric component.

[0005] As a further technical solution of the present invention, the electric component includes a lithium battery, the lithium battery is electrically connected to a printed circuit board, the printed circuit board is electrically connected to a DC motor, and the printed circuit board is electrically connected to a charging socket interface, and the charging socket interface extends to the lower side of the PVC rigid sealing frame; a battery cover for removing the lithium battery is provided on the PVC rigid sealing frame directly below the lithium battery.

[0006] As a further technical solution of the present invention, the printed circuit board includes an insulating layer, a cavity is opened inside the insulating layer, a PCB wiring layer is arranged in the cavity, a component placement layer is placed on the PCB wiring layer, and circuits are connected to both ends of the PCB wiring layer, and the circuits extend outward through outlets opened at both ends of the insulating layer.

[0007] As a further technical solution of the present invention, the power assist device includes an axle connected to the wheel and an outer protective layer arranged on the outer side wall of the axle, and the axle is electrically connected to the DC motor.

[0008] As a further technical solution of the present invention, the braking device includes a plurality of raised baffles arranged on the inner disc of the wheel, the plurality of raised baffles are arranged away from the center of the wheel, and are arranged in a circular shape on the inner disc of the wheel, and a recessed buckle is formed between two adjacent raised baffles; it also includes an outer protective layer, the outer protective layer is wrapped around the outside of the axle, and is a coaxial and concentric cylinder with the axle; an outer protective layer inter-axial fixing layer is arranged between the outer protective layer and the axle, and a brake sheath is arranged at one end of the outer protective layer close to the wheel, and the brake sheath cooperates with the buckle; a pedal is arranged on the outer protective layer, and the pedal is connected to the brake sheath.

[0009] As a further technical solution of the present invention, an axle center hole is opened at the axis center of the wheel, and the axle is keyed to the axle center hole; and a plurality of fixing nuts are evenly spaced near the center of the inner disk of the wheel, and the screws in the fixing layer between the outer protective layer and the axis are threadedly matched with the fixing nuts.

[0010] As a further technical solution of the present invention, it also includes an armrest, which is connected to the vehicle body through a locking frame, and the locking frame includes a hollow block and a solid block. The side wall of the hollow block is provided with a plurality of through holes in a horizontal state for fixing multifunctional accessories, and the solid block is provided with a plurality of fixing holes in a vertical state for fixing the armrest.

[0011] As a further technical solution of the present invention, both ends of the multifunctional accessory are provided with insertion heads, a groove is opened on the insertion head, a fixing bolt is horizontally arranged in the groove, one end of the fixing bolt located in the groove is connected to a fixing rod, the fixing rod is vertically arranged, and also includes a fixing box arranged near the multifunctional accessory, a snap is arranged in the fixing box, the snap is connected to a connecting wire through a first spring, the connecting wire is connected to the fixing rod, and the other end of the fixing bolt cooperates with the through hole.

[0012] As a further technical solution of the present invention, the armrest is divided into two sections, which are connected in the middle by a lock switch, and the lock switch includes a hollow section and a solid section, which are respectively arranged on the two sections of the armrest, and the cross-sectional size of the solid section is smaller than that of the hollow section, and at least one fixing buckle is arranged on the solid section, and the fixing buckle is connected to the solid section through a second spring; at least one avoidance through hole is opened on the hollow section, and the fixing buckle cooperates with the avoidance through hole.

[0013] As a further technical solution of the present invention, it also includes: it also includes a plurality of fixing frames arranged on the handrail, the overall structure of the handrail is a concave groove, and the fixing frame is arranged parallel to the cross-section of the handrail; at least one first fixing column is arranged on the inner side of the handrail, the first fixing column is parallel to the length direction of the handrail, the first fixing column cooperates with the fixing hole, and the first fixing column is a solid cylindrical structure; two second fixing columns perpendicular to the handrail are arranged in the fixing frame for fixing standard parts and providing power for the standard parts, the second fixing column is a hollow cylindrical structure with a metal electrode, and the metal electrode is a hollow cylinder; the standard part includes a pin layer, a solid layer, a fixing layer and an exposed layer, and two solid metal pins are arranged on the pin layer, and the solid metal pins cooperate with the metal electrode.

[0014] The beneficial effects of the present invention are:

[0015] 1. A power-assisting device is installed on the existing vehicle body, which is used to assist the wheels on the vehicle body, providing a more labor-saving service for the user. Compared with the non-powered children's vehicle in the prior art, it is easier and more convenient to use;

[0016] 2. In addition, a braking device is provided, which can slow down the vehicle body when it needs to slow down or when going downhill, effectively improving the safety performance of the children's vehicle;

[0017] 3. In the self-locking power filter module: BX is a fuse, RY is a zinc oxide varistor, which is a device with nonlinear characteristics. When the voltage reaches a certain value, its resistance decreases sharply. By using this characteristic, it can have a higher absorption and suppression ability for overvoltage or spike pulses, which can not only play the role of overvoltage protection, but also suppress the interference generated by the switching power supply from being transmitted to the power grid, playing a dual role of filtering;

[0018] 4. The through holes are used to fix the multifunctional accessories inserted from the socket surface. When the multifunctional accessories are inserted from the socket surface and fixed at the through holes at three different positions, the distance between the child sitting in the baby stroller and the multifunctional accessories can be changed, thereby adjusting the distance.

[0019] 5. The style and size of the fixing bolt are consistent with the ADHI through-hole on the above-mentioned locking frame surface. In the normal state, the fixing bolt is extended out of the insertion head. In this way, due to the design of consistent dimensions, the insertion head cannot enter the insertion surface of the locking frame; when the user presses the button on the fixing box in the multi-functional accessory, the contraction of the first spring will pull the fixing rod through the connecting line, and then pull the fixing bolt to achieve the effect of retraction, which is convenient for quick installation.

[0020] 6. Two second fixing columns perpendicular to the extension direction of the concave groove are arranged in the closed space formed by the concave groove a1b1c1 surface and the abc surface at the bottom of the fixing frame. Here, the second fixing column is a hollow cylindrical structure with a metal electrode (the metal electrode is also a hollow cylinder), which is used to fix the standard parts and provide power services for the standard parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the baby carriage of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the electric component of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a printed circuit board of the present invention;

[0025] Figure 4 It is a connection diagram of the charging circuit of the present invention;

[0026] Figure 5 This is a circuit connection diagram of the self-locking power filter module of the present invention;

[0027] Figure 6 This is a circuit connection diagram of the leakage detection module of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the rotating device of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the connection between the wheel and the axle of the present invention;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the concave buckle on the wheel surface of the present invention;

[0031] Fig.10 It is a schematic diagram of the connection between the wheel surface buckle and the brake sheath of the present invention;

[0032] Fig.11 It is a schematic diagram of the state when the brake sheath and the concave buckle are matched in the braking state of the present invention;

[0033] Fig.12 It is a schematic diagram of the state when the brake sheath and the concave buckle are matched in the free state of the present invention;

[0034] Fig.13 It is a structural schematic diagram of the lock frame of the present invention;

[0035] Fig.14 It is a structural schematic diagram of the multifunctional accessory of the present invention;

[0036] Fig.15 It is a structural schematic diagram of the lock switch of the present invention;

[0037] Fig.16 It is an enlarged view of the three-dimensional structure of the interface connection of the present invention;

[0038] Fig.17 is a cross-sectional view of the handrail of the present invention;

[0039] Fig.18 It is a plan view of the fixing frame of the present invention;

[0040] Fig.19 is a top view of the fixing frame of the present invention;

[0041] Fig. 20 It is a schematic diagram of the structure of the standard part of the present invention;

[0042] Fig.21 It is a top view of the standard part of the present invention.

[0043] In the figure: 1-car body, 2-electric component, 21-wire, 22-printed circuit board, 23-DC motor, 24-PVC hard sealing frame, 25-charging socket interface, 26-battery cover, 27-lithium battery, 221-insulating layer, 222-PCB wiring layer, 223-component placement layer, 224-outlet, 225-line, 3-power assist device, 31-axle, 32-outer protective layer, 4-brake device, 41-concave buckle, 42-raised baffle, 43-axle center hole, 44-fixing nut, 45-brake sheath, 46-outer protective layer, 47-outer protective layer shaft fixing layer, 48-axle layer, 49-pedal Plate, 5-mesh bag, 6-power switch, 7-wheel, 8-locking frame, 81-through hole, 82-fixing hole, 83-insertion head, 84-fixing bolt, 85-fixing rod, 86-fixing box, 87-snap button, 88-first spring, 89-connecting line, 9-armrest, 10-locking switch, 101-hollow body section, 102-solid section, 103-fixing buckle, 11-fixing frame, 12-first fixing column, 13-second fixing column, 14-metal electrode, 15-cover buckle, 16-protective cover, 17-metal pin, 18-pin layer, 19-solid layer, 20-fixing layer, 21-exposed layer, 22-hat-shaped fixing hole.

[0044] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Combination Figure 1 In an embodiment of the present invention, a children's car includes a car body 1, a PVC hard sealing frame 24 is arranged on the lower side of the bottom supporting frame of the car body 1, the PVC hard sealing frame 24 is arranged on the lower side of the supporting net bag 5 of the car body 1, and an electric component 2 is arranged in the PVC hard sealing frame 24; a power assist device 3 and a braking device 4 are also connected to the wheels 7 of the car body 1, and a power assist switch 6 is arranged on the upper part of the car body 1, and the power assist switch 6 is electrically connected to the electric component 2.

[0049] In this embodiment, a power-assisting device 3 is installed on the existing vehicle body 1. The power-assisting device 3 is used to assist the wheels 7 on the vehicle body 1, providing a more labor-saving service for the user. Compared with the non-powered children's vehicles in the prior art, it is easier and more convenient to use. In addition, a braking device 4 is also provided, which can slow down the vehicle body 1 when deceleration is required or when going downhill, effectively improving the safety performance of the children's vehicle.

[0050] In this embodiment, the PVC rigid sealing frame 24 is made of PVC rigid material, which has the functions of heat insulation and electrical insulation, and is used to protect and install the electric component 2 disposed therein.

[0051] The electric component 2 includes a lithium battery 27, the lithium battery 27 is electrically connected to a printed circuit board 22, the printed circuit board 22 is electrically connected to a DC motor 23, and the printed circuit board 22 is electrically connected to a charging socket interface 25 through an electric wire, and the charging socket interface 25 extends to the lower side of a PVC rigid sealing frame 24; a battery cover 26 for removing the lithium battery 27 is provided on the PVC rigid sealing frame 24 directly below the lithium battery 27.

[0052] See also Figure 2 The electric component 2 includes a DC motor 23 for driving the wheels 7 to rotate and a charging device. The charging device includes a lithium battery 27 and a corresponding charging circuit. The lithium battery 27 is used to provide a power source for the DC motor. In addition, the lithium battery 27 can be directly charged through the provided charging socket interface 25. At this time, there is no need to take out the lithium battery 27, which is convenient for use. On the other hand, the battery cover 26 can be opened to directly take out the lithium battery 27 and charge it away from the body of the children's car. Of course, when the lithium battery 27 is taken out, it is necessary to ensure that it is charged in a safe environment. It is not allowed to place it indoors to prevent fire that affects life safety.

[0053] See also Figure 3 The printed circuit board 22 includes an insulating layer 221, which is made of insulating material. A cavity is opened inside the insulating layer 221, and a PCB wiring layer 222 is arranged in the cavity. A component placement layer 223 is placed on the PCB wiring layer 222. Both ends of the PCB wiring layer 222 are connected to a circuit 225, and the circuit 225 extends outward through an outlet 224 opened at both ends of the insulating layer 221.

[0054] In this embodiment, the PCB wiring layer 222 is wired and boarded according to actual circuit principles and the entire board is copper-clad. The required independent components are placed separately on the component placement layer 223 at one end of the PCB wiring layer 222, and the corresponding circuit connection output is led out to the corresponding functional position of the vehicle body 1 at the outlet 224 by means of guided routing.

[0055] See also Figure 4 In addition, in this embodiment, the charging circuit is composed of a self-locking power filter module and a leakage detection module. When the user-end AC power enters the device, the port output is obtained through the self-locking power filter module. At the same time, the leakage detection module detects the leakage of the port output at this time, and enables the corresponding alarm indication to be realized based on the judgment.

[0056] See also Figure 5In the self-locking power supply filter module: BX is a fuse, RY is a zinc oxide varistor, which is a device with nonlinear characteristics. When the voltage reaches a certain value, its resistance decreases sharply. By utilizing this characteristic, it can have a higher absorption and suppression ability for overvoltage or spike pulses. It can not only play an overvoltage protection role, but also suppress the interference generated by the switching power supply from being transmitted to the power grid, playing a dual role of filtering.

[0057] Press the micro switch AN, and the AC power is stepped down by C11 and C12, stabilized by D1, rectified by D2, and filtered by C2 to supply 12V DC power to the circuit and output to relay J. J is energized, and J-1 connects the circuit for self-protection and self-locking. The AC power is sent to the output port through the power filter composed of T and C3-C6. When there is a sudden power outage, J-1 is automatically disconnected to cut off the main current, which can prevent the charging device from being impacted due to the power plug not being unplugged when a call comes.

[0058] See also Figure 6 In the leakage detection module: the current limiting resistor R1 and the crystal diode VD1, the voltage stabilizing diode VD3, the capacitor C, etc. form a half-wave rectification, voltage stabilization, and filtering circuit to provide a stable 5V DC voltage to the alarm circuit; the analog sound integrated circuit A (KD-9561) and its external oscillation resistor R2 and the piezoelectric ceramic piece B form an analog sound generator, and the light-emitting diode VD2 is used for light indication.

[0059] Normally, since the left end of R1 is connected to the earth terminal of the output port, the alarm circuit A has no working power supply, the light-emitting diode VD2 does not emit light, and B has no sound. Once the charging device shell is connected to the output port by leakage, the leakage current will form a loop through the phase line of the output port, the metal shell of the charging device, the ground line of the output port, the alarm circuit and the neutral line of the power grid. The leakage current is limited by R1 and rectified by VD1, so that VD2 lights up; at the same time, the leakage current is stabilized by VD3, and a 5V DC voltage is output at both ends of it. After filtering by C, A and R2 form a simulated sound generator, and B will sound an alarm to remind the user to disconnect the power of the charging device in time for maintenance.

[0060] See also Figure 7 and Figure 8The power assist device 3 includes an axle 31 connected to the wheel 7 and an outer protective layer 32 arranged on the outer side wall of the axle 31. The outer protective layer 32 can protect the axle 31. The axle 31 is electrically connected to the DC motor 23. In this embodiment, the power assist device 3 can achieve an electric power-assisted pushing effect uphill. It is usually used as a traditional children's car. When power assist is needed, the parent starts the power assist device 3 (through the power assist switch 6, which is the same as the rotary acceleration throttle device of the electric vehicle in the prior art), and rotates it to the corresponding gear according to the required power assist, so that the DC motor 23 works and drives the axle 31 in the power assist device 3 to rotate to achieve the power assist effect.

[0061] It is worth noting that a capacitive touch sensor is also provided in the power assist switch 6. The power assist effect can only be achieved when the power assist switch 6 is pressed and activated by the user's finger. The purpose of such a setting is to prevent the unwarranted triggering of the power assist device due to software failure.

[0062] See also Fig. 9 and Fig.10 The brake device 4 includes a plurality of raised baffles 42 arranged on the inner disk of the wheel 7. The plurality of raised baffles 42 are arranged away from the center of the wheel 7 and are arranged in a circular shape on the inner disk of the wheel 7. A concave buckle 41 is formed between two adjacent raised baffles 42. Twelve raised baffles 42 may be provided. Twelve raised baffles 42 constitute 12 concave buckles 41. An axle center hole 43 is provided at the axis center of the wheel 7. The axle 31 is keyed with the axle center hole 43. A plurality of fixing nuts 44 are evenly spaced near the center of the inner disk of the wheel 7. The screws in the outer protective layer inter-axial fixing layer 47 are threadedly matched with the fixing nuts 44. The axle 31 can be stably fixed in the axle center hole 43 of the wheel 7 through threaded matching.

[0063] In this embodiment, six fixing nuts 44 can be provided, and the intervals between them are 60 degrees. Of course, it can also be set to eight. The specific setting can be based on actual needs.

[0064] See also Fig. 9 , Fig.10 , Fig.11 and Fig.12 , and also includes an outer protective layer 46, which is wrapped around the outside of the axle 31 and is a coaxial and concentric cylinder with the axle 31; an outer protective layer inter-axial fixing layer 47 is arranged between the outer protective layer 46 and the axle 31, and a brake sheath 45 is arranged at one end of the outer protective layer 46 close to the wheel 7, and the brake sheath 45 cooperates with the recessed buckle 41; a pedal 49 is arranged on the outer protective layer 46, and the pedal 49 is connected to the brake sheath 45.

[0065] In this embodiment, the outer protective layer 46 is located on the outer ring of the axle 31 and is a coaxial and concentric cylinder with the axle 31. On the one hand, it can protect the axle 31 from exposure to the sun, rain and corrosion; on the other hand, it can create an enclosed space between the axle 31 and the outer protective layer 46, in which the brake sheath 45 required by the brake device 4 is arranged.

[0066] When the user steps on the pedal 49 provided on the outer protective layer 46 to achieve a seesaw effect, the brake sheath 45 provided between the outer protective layer 46 and the axle is driven to achieve a telescopic effect. When the user steps on the pedal 49, the brake sheath 45 will be in an extended state, connected with the concave buckle structure formed by the raised baffle plate 42 provided on the wheel 7, and the wheel 7 is locked to rotate, thereby achieving a braking effect (such as the attached Fig.10 When the user no longer steps on the pedal 49, the brake sheath 48 will be in a contracted state and detached from the recessed buckle 41 structure, thereby achieving free rotation of the wheel 7 (such as the attached Fig.10 The state of the lower brake sheath 45).

[0067] Through the above working process, the wheel 7 can be released and braked, the operation is convenient and quick, and the safety and stability are better.

[0068] See also Figure 1 and Fig.13 It also includes an armrest 9, which is connected to the vehicle body 1 through a locking frame 8. The locking frame 8 includes a hollow block and a solid block. The side wall of the hollow block is provided with a plurality of horizontal through holes 81 for fixing multifunctional accessories, and the solid block is provided with a plurality of vertical fixing holes 82 for fixing the armrest.

[0069] In this embodiment, the entire lock frame consists of two blocks: a hollow block and a solid block: the portion from the socket surface ABIJ to CDH in the figure is a hollow part, the ABCD surface, the bottom surface HIJ, and the side surface ADHI are solid, and the remaining positions are hollow bodies.

[0070] See also Fig.14 Both ends of the multifunctional accessory are provided with insertion heads 83, a groove is opened on the insertion head 83, a fixing bolt 84 is horizontally arranged in the groove, one end of the fixing bolt 84 located in the groove is connected to a fixing rod 85, the fixing rod 85 is vertically arranged, and also includes a fixing box 86 arranged near the multifunctional accessory, a snap button 87 is arranged in the fixing box 86, the snap button 87 is connected to a connecting line 89 through a first spring 88, the connecting line 89 is connected to the fixing rod 85, the other end of the fixing bolt 84 is matched with the through hole 81, and the first spring 88 can pull the fixing rod 85 to move through the connecting line 89.

[0071] The side of ADHI is provided with three through holes 81 for fixing the multifunctional accessory inserted from the socket surface. When the multifunctional accessory is inserted from the socket surface and fixed at the through holes 81 at three different positions, the distance between the child sitting in the stroller and the multifunctional accessory can be changed, thereby adjusting the distance.

[0072] Each face of the parallelepiped formed from the face formed by CDH to the face formed by the tail end EFG is solid, wherein two fixing holes 82 are set on the CDEF face for fixing the handrail 9. In the implementation example, the two fixing holes can be set as through holes or holes with a depth as indicated by the dotted lines in the figure according to actual needs.

[0073] The fixing bolt 84 is used to fix the multifunctional accessory on the locking frame 8 by connecting with the through hole 81 in the locking frame 8. The style and size of the fixing bolt 84 are consistent with the through hole ADHI on the surface of the locking frame 8. In the normal state, the fixing bolt 84 extends out of the insertion head 83. In this way, due to the consistent size design, the insertion head 83 cannot enter the insertion surface of the locking frame 8. When the user presses the button on the fixing box 86 in the multifunctional accessory, the contraction of the first spring 88 will pull the fixing rod 85 through the connecting line 89, and then pull the fixing bolt 84 to achieve the effect of retraction, which is convenient for quick installation.

[0074] See also Fig.15 and Fig.16 The armrest 9 is divided into two sections, which are connected in the middle by a lock switch 10. The lock switch 10 includes a hollow section 101 and a solid section 102. The hollow section 101 and the solid section 102 are respectively arranged on the two sections of the armrest 9, and the cross-sectional size of the solid section 101 is smaller than the cross-sectional size of the hollow section 102. At least one fixing buckle 103 is arranged on the solid section 102, and the fixing buckle 103 is connected to the solid section 102 through a second spring (not shown in the figure); at least one avoidance through hole (not shown in the figure) is opened on the hollow section 102, and the fixing buckle 103 cooperates with the avoidance through hole.

[0075] In this embodiment, the fixing buckle 103 is in a hemispherical protrusion. When the user connects the hollow body segment 101 and the solid segment 102 with force through the surfaces abef and a1bbe1f1 at the interface (the abef surface is slightly larger than the a1bbe1f1l), due to the squeezing force of the edges ab and ef of the hollow body segment 101 plus the squeezing force of the user on the fixing buckle 103, the second spring will shrink. When the docking distance between the two exceeds the circular peak of the fixing buckle 103, the fixing buckle 103 will be pushed out of the hollow body surface abcd under the restoring force of the second spring to achieve the docking of the hollow body segment 101 and the solid segment 102.

[0076] When the two need to be loosened, the fixing buckle 103 is pressed toward the inside of the hollow body section 101 , and the fixing buckle 103 will move out from the avoidance through hole, thereby separating the hollow body section 101 from the solid section 102 .

[0077] See also Figure 17-Figure 21 , also includes a plurality of fixing frames 11 arranged on the armrest 9, the overall structure of the armrest 9 is a concave groove, and the fixing frame 11 is arranged parallel to the cross-section of the armrest 9; at least one first fixing column 12 is arranged on the inner side of the armrest 9, the first fixing column 12 is parallel to the length direction of the armrest 9, the first fixing column 12 cooperates with the fixing hole 82, and the first fixing column 12 is a solid cylindrical structure; two second fixing columns 13 perpendicular to the armrest 9 are arranged in the fixing frame 11 for fixing the standard parts and providing power for the standard parts, the second fixing column 13 is a hollow cylindrical structure with a metal electrode 14, and the metal electrode 14 is a hollow cylinder; the standard part includes a pin layer 18, a solid layer 19, a fixing layer 20 and an exposed layer 21, and two solid metal pins 17 are arranged on the pin layer 18, and the solid metal pins 17 cooperate with the metal electrode 14.

[0078] The overall structure of the armrest 9 is composed of a concave groove. In actual use, a layer of material such as imitation leather needs to be wrapped on the overall concave contour structure to facilitate the baby's grasping. The wire routing of the present invention is arranged in the internal closed layer space of the concave groove structure (i.e., composed of the a1b1c1 surface and the abc surface).

[0079] One end of the armrest 9 is fixed on the bottom abc surface through two first fixing columns 12 parallel to the extension direction of the concave groove, and connected to the fixing hole 82 of the lock frame 8, and the other end is an interface connection (hollow or solid) as described in the previous figure, where the first fixing column 12 is a solid cylindrical structure.

[0080] N (for example, N=2) fixing frames 11 are provided between the two ends of the handrail 9. Two second fixing columns 13 perpendicular to the extending direction of the concave groove are provided at the bottom of the fixing frame 11 in the closed space composed of the concave groove a1b1c1 surface and the abc surface. Here, the second fixing column 13 is a hollow cylindrical structure with a metal electrode 14 (the metal electrode 14 is also a hollow cylinder), which is used to fix the standard parts and provide power services for the standard parts.

[0081] The upper end of the fixing frame 11 is made of a protective cover 16 made of simulated leather material, which can prevent the corrosion of the fixing frame device due to sun and rain on the one hand; on the other hand, it can be consistent with the protective appearance of the overall handrail 9 device, thereby improving the aesthetic effect.

[0082] A cover buckle 15 connected to a protective cover 16 is provided on both ends of the fixing frame 11 structure and the concave groove handrail 9 structure in the extending direction. The user can select the opening direction (left or right) of the protective cover 16 according to habit, or can remove the protective cover 16 from the cover buckle 15 at the same time to form an empty top effect.

[0083] The standard part structure is an object with the same structural dimensions as the fixing frame 11 , and is fixed by extrusion of the metal pins 17 and the four walls of the parallelepiped and the four walls of the fixing frame 11 .

[0084] Standard parts are divided into four layers:

[0085] Pin layer 18: located between the two solid metal pins 17 at the bottom and the bottom surface of the standard component, it is connected to the hollow metal electrode 14 in the fixing frame 11 through the two solid metal pins 17 to realize the power supply service of the standard component.

[0086] Physical layer 19: A layer located at the contact point between the standard hexahedron and the bottom surface, in which wiring is arranged to electrically connect the metal pins 17 in the pin layer 18 with the cap-shaped fixing holes 22 (electrically) in the upper layer (fixing layer 20).

[0087] Fixed layer 20: Located between the physical layer 19 and the top layer of the most standard parts (exposed layer 21), four cap-shaped fixing holes 22 are set on the four walls, two of which can be powered and the other two are not. Users can fix objects corresponding to the standard parts interface (such as electric fans, parasols, etc.) in the four cap-shaped fixing holes 22 set above, which not only achieves a fixing effect, but also provides power services for the objects.

[0088] The exposed layer 21 is the top layer of the entire standard structure. It is a thick solid insulating layer. Its design can refer to the protective cover 16 of the above-mentioned fixing frame 11, that is, the exposed layer is made of simulated leather material. On the one hand, it prevents the corrosion of the fixing frame device due to sun and rain; on the other hand, it can be consistent with the protective appearance of the overall handrail device, thereby improving the aesthetic effect.

[0089] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A baby stroller, comprising a stroller body, characterized in that: A PVC rigid sealing frame is arranged at the lower side of the bottom storage rack of the vehicle body, and the PVC rigid sealing frame is arranged at the lower side of the storage net bag of the vehicle body, and an electric component is arranged in the PVC rigid sealing frame; a power-assisting device and a braking device are also connected to the wheels of the vehicle body, and a power-assisting switch is arranged at the upper part of the vehicle body, and the power-assisting switch is electrically connected to the electric component; The baby stroller further comprises an armrest, which is connected to the stroller body via a locking frame, wherein the locking frame comprises a hollow block and a solid block, wherein a plurality of through holes in a horizontal state for fixing multifunctional accessories are formed on the side wall of the hollow block, and a plurality of fixing holes in a vertical state for fixing the armrest are formed on the solid block; Both ends of the multifunctional accessory are provided with insertion heads, a groove is formed on the insertion head, a fixing bolt is horizontally arranged in the groove, one end of the fixing bolt located in the groove is connected to a fixing rod, the fixing rod is vertically arranged, and further comprises a fixing box arranged on the multifunctional accessory, a snap is arranged in the fixing box, the snap is connected to a connecting wire through a first spring, the connecting wire is connected to the fixing rod, and the other end of the fixing bolt is matched with the through hole; It also includes a plurality of fixing frames arranged on the armrest, the overall structure of the armrest is a concave groove, and the fixing frame is arranged parallel to the cross-section of the armrest; at least one first fixing column is arranged on the inner side of the armrest, the first fixing column is parallel to the length direction of the armrest, the first fixing column cooperates with the fixing hole, and the first fixing column is a solid cylindrical structure; two second fixing columns perpendicular to the armrest are arranged in the fixing frame for fixing standard parts and providing power for the standard parts, the second fixing column is a hollow cylindrical structure with a metal electrode, and the metal electrode is a hollow cylinder; the standard part includes a pin layer, a solid layer, a fixing layer and an exposed layer, and two solid metal pins are arranged on the pin layer, and the solid metal pins cooperate with the metal electrode.

2. The baby carriage according to claim 1, characterized in that: The electric component includes a lithium battery, the lithium battery is electrically connected to a printed circuit board, the printed circuit board is electrically connected to a DC motor, and the printed circuit board is electrically connected to a charging socket interface, which extends to the lower side of a PVC rigid sealing frame; a battery cover for removing the lithium battery is provided on the PVC rigid sealing frame directly below the lithium battery.

3. The baby carriage according to claim 2, characterized in that: The printed circuit board includes an insulating layer, a cavity is opened inside the insulating layer, a PCB wiring layer is arranged in the cavity, a component placement layer is placed on the PCB wiring layer, and circuits are connected at both ends of the PCB wiring layer, and the circuits extend outward through outlets opened at both ends of the insulating layer.

4. The baby carriage according to claim 2, characterized in that: The power assist device comprises an axle connected to the wheel and an outer protective layer arranged on the outer side wall of the axle, and the axle is electrically connected to the DC motor.

5. The baby carriage according to claim 4, characterized in that: The braking device includes a plurality of raised baffles arranged on the inner disc of the wheel, the plurality of raised baffles are arranged away from the center of the wheel and are arranged in a circular shape on the inner disc of the wheel, and a recessed buckle is formed between two adjacent raised baffles; it also includes an outer protective layer, the outer protective layer is wrapped around the outside of the axle, and is a coaxial and concentric cylinder with the axle; an outer protective layer interaxial fixing layer is arranged between the outer protective layer and the axle, a brake sheath is arranged at one end of the outer protective layer close to the wheel, and the brake sheath cooperates with the recessed buckle; a pedal is arranged on the outer protective layer, and the pedal is connected to the brake sheath.

6. The baby carriage according to claim 5, characterized in that: An axle center hole is opened at the axis center of the wheel, and the axle is keyed to the axle center hole; and a plurality of fixing nuts are evenly spaced near the center of the inner disk of the wheel, and the screws in the fixing layer between the outer protective layer and the axis are threadedly matched with the fixing nuts.

7. The baby carriage according to claim 1, characterized in that: The armrest is divided into two sections, which are connected in the middle by a lock switch. The lock switch includes a hollow section and a solid section. The hollow section and the solid section are respectively arranged on the two sections of the armrest, and the cross-sectional size of the solid section is smaller than the cross-sectional size of the hollow section. At least one fixing buckle is arranged on the solid section, and the fixing buckle is connected to the solid section through a second spring; at least one avoidance through hole is opened on the hollow section, and the fixing buckle cooperates with the avoidance through hole.

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