CN112849254A

CN112849254A - Automatic control overspeed protection trolley for baby life

Info

Publication number: CN112849254A
Application number: CN202110327682.7A
Authority: CN
Inventors: 蒲旭
Original assignee: Guangzhou Zhaoyang Maternal And Infant Products Co ltd
Current assignee: Guangzhou Zhaoyang Maternal And Infant Products Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-05-28

Abstract

The invention relates to the technical field of mother and infant equipment, and discloses an automatic control overspeed protection trolley for baby life. This infant is born with automatic control's overspeed protection handcart, through the electro-magnet, spring one, the locking piece, mutually supporting of permanent magnet, the electro-magnet circular telegram produces magnetic field and interacts with the permanent magnet, drive the locking piece and overcome spring elastic force effect and remove, make locking piece and control shaft remove the joint state, rethread control shaft, damping piece, mutually supporting of gyro wheel, the damping piece outwards removes and cooperates the mutual joint in groove, make the gyro wheel stop rotating under the effect of frictional force, the overspeed protection function of product has been realized.

Description

Automatic control overspeed protection trolley for baby life

Technical Field

The invention relates to the technical field of mother and infant equipment, in particular to an automatically controlled overspeed protection trolley for infant life.

Background

The perambulator is the tool bogie that facilitates and design for baby's outdoor activities, has various motorcycle types, and the perambulator can bring certain benefit for child's intellectual development, increases child's brain development, however in the use of perambulator, the condition that the handcart breaks away from the hand and glides along slope automatic acceleration often can appear, very big increase the use risk, be unfavorable for baby's normal use, lead to the fact the loss that can not predict for the user.

In the use of baby's handcart, especially in the highway section that has the slope, because the handcart does not have automatic braking system itself, can lead to going forward with higher speed under the effect of self gravity after the handcart breaks away from the hand, bring unnecessary danger for the baby who sits in inside, to steeper highway section, the handcart of breaking away from the hand is hardly caught up by the people, can not satisfy user's user demand, has increased user's use risk, does not play the guard action.

Therefore, we propose an automatically controlled overspeed protection cart for infant life to solve the above problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an automatic control overspeed protection trolley for baby life, which has the advantage of automatic overspeed protection and solves the problem that a common trolley is easy to move in an overspeed manner when being out of hand.

(II) technical scheme

In order to realize the purpose of automatic overspeed protection, the invention provides the following technical scheme: the utility model provides an automatic control's overspeed protection handcart for baby's life, which comprises a fixed axle, the inside locking groove of having seted up of fixed axle, the inside fixedly connected with electro-magnet of locking groove, the equal fixedly connected with spring one in electro-magnet top and bottom, spring one outside fixedly connected with locking block, the inside fixedly connected with permanent magnet of locking block, the equal fixedly connected with spring two in fixed axle both sides, fixed axle outside swing joint has the control shaft, the equal swing joint in fixed axle both sides has the damping piece, the inboard fixedly connected with tooth of damping piece, damping piece outside fixedly connected with damping bed course, the equal swing joint in fixed axle both sides has the gyro wheel, the cooperation groove has been seted up to the gyro wheel inboard, the spring three of the inside fixedly connected with symmetry of gyro wheel, the inboard fixedly connected with dielectric plate of spring, the inside fixedly.

Preferably, the fixed shaft is made of metal materials, bosses are arranged on two sides of the fixed shaft, the diameter of each boss is smaller than that of each damping block, the strength of the fixed shaft is improved, the service life of the fixed shaft is prolonged, the damping blocks are convenient to mount, the matching between the damping blocks and the control shaft is guaranteed, and the interaction between the damping blocks and the matching grooves is facilitated.

Preferably, the electromagnet comprises a magnetic body, a surrounding coil and a control assembly, the opposite surface magnetism of the electromagnet and the permanent magnet is the same, the magnetic force between the electromagnet and the permanent magnet is larger than the elastic force of the first spring, when the electromagnet is electrified, the electromagnet generates a magnetic field, the electromagnet and the permanent magnet are mutually repelled due to the same opposite surface magnetism, the locking block is driven to overcome the elastic force action of the first spring to move, and the automatic control function of a product is realized.

Preferably, the locking piece is metal material, and the locking piece includes moving body and joint portion, and the diameter of locking piece is less than the diameter of locking groove, and the surface of locking piece is smooth, and the shape and the control shaft of locking piece cooperate, have increased the intensity of locking piece, have prolonged the life of locking piece, have reduced the frictional resistance between locking piece and fixed axle, the locking piece of being convenient for is at the removal in the locking groove.

Preferably, the control shaft is metal material, and the swivelling chute has been seted up to the inside of control shaft, and the diameter of swivelling chute is greater than the diameter of fixed axle, and the inboard of control shaft is seted up with locking piece matched with joint groove, has increased the intensity of control shaft, has prolonged the life of control shaft for the control shaft passes through swivelling chute and fixed axle interconnect, control shaft and two fixed connection of spring.

Preferably, the gyro wheel is plastic material, and the mounting groove is seted up to the inboard of gyro wheel, and the outside fixedly connected with antiskid bed course of gyro wheel has reduced the weight of gyro wheel, is convenient for be connected between gyro wheel and the fixed axle, has increased the frictional force on gyro wheel and ground, helps user's use, has increased the security of using.

Preferably, the shape and the damping piece in cooperation groove cooperate, and the inboard fixedly connected with antiskid bed course in cooperation groove, the degree of depth in cooperation groove are less than the length of damping piece, through the cooperation each other between cooperation groove and damping piece, when cooperation groove and damping piece extrude each other, cooperation inslot antiskid bed course and damping bed course interact for the gyro wheel stall is rotatory, has realized the overspeed protect function of product.

Preferably, the opposite face shape of positive plate and negative plate is the same, and the height of positive plate and negative plate all is greater than the height of dielectric layer board, and the negative plate links to each other with piezo-resistor electrical property, through the removal of dielectric layer board, changes the relative area between positive plate and the negative plate, and when the relative area between positive plate and negative plate reached the design value, piezo-resistor both ends voltage reached operating voltage, and piezo-resistor sends the signal control electro-magnet circular telegram work, has realized the automatic control function of product.

(III) advantageous effects

Compared with the prior art, the invention provides an automatic control overspeed protection trolley for baby life, which has the following beneficial effects:

1. this infant's automatic control's overspeed protection handcart for life, through the electro-magnet, spring one, the locking piece, mutually supporting of permanent magnet, the electro-magnet circular telegram produces magnetic field and interacts with the permanent magnet, it removes to drive the locking piece to overcome spring elastic force, make locking piece and control shaft remove the joint state, the control shaft takes place relative rotation with the fixed axle under the effect of two elastic forces of spring, the rethread control shaft, the damping piece, mutually supporting of gyro wheel, the damping piece outwards removes and cooperates the mutual joint in groove, make the gyro wheel stop rotating under the effect of friction power, the overspeed protection function of product has been realized.

2. This automatic control's overspeed protection handcart is used in baby's life, through dielectric plate, positive plate, negative plate, piezo-resistor's interact, the three elasticity of spring removal are overcome to the dielectric plate under the effect of centrifugal force, and the relative area between positive plate and the negative plate reaches the design value, and piezo-resistor both ends voltage reaches operating voltage, and piezo-resistor sends the work of signal of telecommunication control cooperation groove, has realized the automatic control function of product, and the speed of traveling of automatic monitoring product has guaranteed that the product starts protect function rapidly when speeding.

Drawings

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

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic structural diagram of the present invention.

In the figure: 1. a fixed shaft; 2. a locking groove; 3. an electromagnet; 4. a first spring; 5. a locking block; 6. a permanent magnet; 7. a second spring; 8. a control shaft; 9. a damping block; 10. teeth; 11. a damping cushion layer; 12. a roller; 13. a mating groove; 14. a third spring; 15. a dielectric plate; 16. a positive plate; 17. a negative plate; 18. a voltage dependent resistor.

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. 1-4, an automatic control overspeed protection handcart for infant life comprises a fixing shaft 1, the fixing shaft 1 is made of metal material, bosses are arranged on both sides of the fixing shaft 1, the diameter of each boss is smaller than that of a damping block 9, the strength of the fixing shaft 1 is increased, the service life of the fixing shaft 1 is prolonged, the damping blocks 9 are convenient to install, the matching between the damping blocks 9 and a control shaft 8 is ensured, the interaction between the damping blocks 9 and a matching groove 13 is facilitated, a locking groove 2 is arranged in the fixing shaft 1, an electromagnet 3 is fixedly connected in the locking groove 2, the electromagnet 3 comprises a magnetic flux, a surrounding coil and a control assembly, the opposite surfaces of the electromagnet 3 and a permanent magnet 6 have the same magnetism, the magnetic force between the electromagnet 3 and the permanent magnet 6 is larger than the elastic force of a spring I4, when the electromagnet 3 is electrified, the electromagnet 3 generates a magnetic field, and the electromagnet 3 and the permanent magnet 6 repel each, drive locking block 5 and overcome 4 elastic force of spring and act on the removal, the automatic control function of product has been realized, 3 tops of electro-magnet and the equal fixedly connected with spring 4 in bottom, 4 outside fixedly connected with locking blocks 5 of spring, locking block 5 is metal material, locking block 5 includes moving body and joint portion, locking block 5's diameter is less than the diameter of locking groove 2, locking block 5's surface is smooth, locking block 5's shape and control shaft 8 cooperate, locking block 5's intensity has been increased, locking block 5's life has been prolonged, the frictional resistance between locking block 5 and fixed axle 1 has been reduced, the removal of locking block 5 in locking groove 2 of being convenient for.

The permanent magnet 6 is fixedly connected inside the locking block 5, the two sides of the fixing shaft 1 are fixedly connected with the springs II 7, the outer side of the fixing shaft 1 is movably connected with the control shaft 8, the control shaft 8 is made of metal materials, the inside of the control shaft 8 is provided with a rotating groove, the diameter of the rotating groove is larger than that of the fixing shaft 1, the inner side of the control shaft 8 is provided with a clamping groove matched with the locking block 5, the strength of the control shaft 8 is increased, the service life of the control shaft 8 is prolonged, the control shaft 8 is connected with the fixing shaft 1 through the rotating groove, the control shaft 8 is fixedly connected with the springs II 7, the two sides of the fixing shaft 1 are movably connected with the damping blocks 9, the inner sides of the damping blocks 9 are fixedly connected with the teeth 10, the outer sides of the damping blocks 9 are fixedly connected with the damping cushion layers 11, the two sides, the outer side of the roller 12 is fixedly connected with an anti-slip cushion layer, so that the weight of the roller 12 is reduced, the roller 12 is conveniently connected with the fixed shaft 1, the friction force between the roller 12 and the ground is increased, the use of a user is facilitated, and the use safety is improved.

The inside of the roller 12 is provided with a matching groove 13, the shape of the matching groove 13 is matched with the damping block 9, the inside of the matching groove 13 is fixedly connected with an anti-slip cushion layer, the depth of the matching groove 13 is less than the length of the damping block 9, through the mutual matching between the matching groove 13 and the damping block 9, when the matching groove 13 and the damping block 9 are extruded mutually, the anti-slip cushion layer inside the matching groove 13 interacts with the damping cushion layer 11, so that the roller 12 stops rotating, the overspeed protection function of a product is realized, a symmetrical spring III 14 is fixedly connected inside the roller 12, a dielectric plate 15 is fixedly connected inside the spring III 14, a positive plate 16 is fixedly connected inside the roller 12, a negative plate 17 is fixedly connected inside the roller 12, the opposite surfaces of the positive plate 16 and the negative plate 17 have the same shape, the heights of the positive plate 16 and the negative plate 17 are both greater than, through the removal of dielectric layer board 15, change the relative area between positive plate 16 and negative plate 17, when the relative area between positive plate 16 and negative plate 17 reached the design value, piezo-resistor 18 both ends voltage reached operating voltage, and piezo-resistor 18 sends out the circular telegram work of signal control electro-magnet 3, has realized the automatic control function of product, and the inside fixedly connected with piezo-resistor 18 of gyro wheel 12.

The working principle is as follows: when the product normally works, the locking block 5 is mutually clamped with the clamping groove on the inner side of the control shaft 8 under the action of the elastic force of the first spring 4, the second spring 7 is in a contraction state, the roller 12 is in a free rotation state, the damping block 9 is not in contact with the matching groove 13, the relative area between the positive plate 16 and the negative plate 17 is small, the voltage dependent resistor 18 does not send out an electric signal, and the electromagnet 3 does not work when being electrified;

when the product runs at an overspeed, the rotation speed of the roller 12 exceeds a normal working range, through the interaction of the dielectric plate 15, the positive plate 16, the negative plate 17 and the piezoresistor 18, the dielectric plate 15 overcomes the elastic force of the spring III 14 to move under the action of centrifugal force, the relative area between the positive plate 16 and the negative plate 17 reaches a design value, the voltage at two ends of the piezoresistor 18 reaches working voltage, the piezoresistor 18 sends out an electric signal to control the matching groove 13 to work, the automatic control function of the product is realized, the running speed of the product is automatically monitored, and the protection function is rapidly started when the product runs at an overspeed;

through electro-magnet 3, spring 4, locking block 5, mutually support of

permanent magnet

6, 3 circular telegrams of electro-magnet produce magnetic field and interact with permanent magnet 6, drive locking block 5 and overcome spring 4 elastic force effect and remove, make locking block 5 and control shaft 8 remove the joint state, relative rotation takes place with fixed axle 1 under the effect of spring two 7 elastic forces for control shaft 8, rethread control shaft 8, damping piece 9, mutually support of gyro wheel 12, damping piece 9 outwards removes and cooperates groove 13 mutual joint, make gyro wheel 12 stall under the effect of frictional force, the overspeed protection function of product has been realized.

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.

Claims

1. The utility model provides an infant is born with automatic control's overspeed protection handcart, includes fixed axle (1), its characterized in that: the damping device is characterized in that a locking groove (2) is formed in the fixing shaft (1), an electromagnet (3) is fixedly connected in the locking groove (2), a first spring (4) is fixedly connected to the top and the bottom of the electromagnet (3), a locking block (5) is fixedly connected to the outer side of the first spring (4), a permanent magnet (6) is fixedly connected in the locking block (5), a second spring (7) is fixedly connected to the two sides of the fixing shaft (1), a control shaft (8) is movably connected to the outer side of the fixing shaft (1), a damping block (9) is movably connected to the two sides of the fixing shaft (1), teeth (10) are fixedly connected to the inner side of the damping block (9), a damping cushion layer (11) is fixedly connected to the outer side of the damping block (9), rollers (12) are movably connected to the two sides of the fixing shaft (1), a matching groove, a dielectric plate (15) is fixedly connected to the inner side of the spring III (14), a positive plate (16) is fixedly connected to the inner portion of the roller (12), a negative plate (17) is fixedly connected to the inner portion of the roller (12), and a piezoresistor (18) is fixedly connected to the inner portion of the roller (12).

2. An automatically controlled overspeed protection cart for infant life as claimed in claim 1, wherein: the damping block (9) is characterized in that the fixing shaft (1) is made of metal materials, bosses are arranged on two sides of the fixing shaft (1), and the diameter of each boss is smaller than that of the damping block (9).

3. An automatically controlled overspeed protection cart for infant life as claimed in claim 1, wherein: the electromagnet (3) comprises a magnetic flux body, a surrounding coil and a control assembly, the opposite surfaces of the electromagnet (3) and the permanent magnet (6) are same in magnetism, and the magnetic force between the electromagnet (3) and the permanent magnet (6) is larger than the elastic force of the spring I (4).

4. An automatically controlled overspeed protection cart for infant life as claimed in claim 1, wherein: the locking piece (5) is metal material, and locking piece (5) are including moving body and joint portion, and the diameter of locking piece (5) is less than the diameter of locking groove (2), and the surface of locking piece (5) is smooth, and the shape and the control shaft (8) of locking piece (5) cooperate.

5. An automatically controlled overspeed protection cart for infant life as claimed in claim 1, wherein: the control shaft (8) is made of metal materials, a rotating groove is formed in the control shaft (8), the diameter of the rotating groove is larger than that of the fixing shaft (1), and a clamping groove matched with the locking block (5) is formed in the inner side of the control shaft (8).

6. An automatically controlled overspeed protection cart for infant life as claimed in claim 1, wherein: the roller (12) is made of plastic materials, an installation groove is formed in the inner side of the roller (12), and an anti-skid cushion layer is fixedly connected to the outer side of the roller (12).

7. An automatically controlled overspeed protection cart for infant life as claimed in claim 1, wherein: the shape of cooperation groove (13) cooperatees with damping piece (9), and the inboard fixedly connected with antiskid bed course of cooperation groove (13), the degree of depth of cooperation groove (13) is less than the length of damping piece (9).

8. An automatically controlled overspeed protection cart for infant life as claimed in claim 1, wherein: the opposite surfaces of the positive plate (16) and the negative plate (17) are the same in shape, the heights of the positive plate (16) and the negative plate (17) are both larger than the height of the dielectric plate (15), and the negative plate (17) is electrically connected with the piezoresistor (18).