CN109353401B - Braking system - Google Patents
Braking system Download PDFInfo
- Publication number
- CN109353401B CN109353401B CN201811305061.3A CN201811305061A CN109353401B CN 109353401 B CN109353401 B CN 109353401B CN 201811305061 A CN201811305061 A CN 201811305061A CN 109353401 B CN109353401 B CN 109353401B
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- CN
- China
- Prior art keywords
- brake
- box
- stop block
- pedal box
- pedal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/08—Braking mechanisms; Locking devices against movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/08—Braking mechanisms; Locking devices against movement
- B62B9/082—Braking mechanisms; Locking devices against movement foot operated
Abstract
The invention discloses a braking system, which comprises: a frame; the wheel is arranged on the frame, and at least one braking groove is formed in the inner end face of the wheel; the brake piece is positioned at the inner side of the wheel and can be clamped into the brake groove to lock the wheel after being driven; the brake control device comprises a brake bottom box fixed on the frame, a pedal box connected with the brake bottom box and capable of moving up and down, a spring arranged between the brake bottom box and the pedal box, and a torsion spring and a gear piece arranged in the brake bottom box, wherein one end of the torsion spring is connected with the brake bottom box, the other end of the torsion spring is connected with the gear piece, and a stop block is convexly arranged on the pedal box; and the input end of the brake transmission device is connected with the brake control device, and the output end of the brake transmission device is connected with the brake piece. The invention has simple and reasonable structure, reduces the number of parts, has lower cost, more convenient production and assembly, simple and convenient operation and reliable performance when in use, and can realize long-time maintenance in a braking state or a free moving state.
Description
Technical Field
The invention relates to a braking system, in particular to a braking system applied to small vehicles such as a baby carrier, an infant mobile dining car and the like.
Background
In order to ensure running safety, existing microminiature vehicles, such as a baby carrier, are generally provided with a brake system at wheels.
At present, a common braking system generally comprises a braking rod, a braking control pedal, a braking transmission shaft connected between the braking rod and the braking control pedal, and a braking disc or a wheel with a plurality of braking grooves, wherein the braking control pedal is used for controlling the braking rod to be inserted into the braking grooves during braking, so that braking can be realized. However, the existing braking system is provided with a reset spring on the transmission shaft, so that the load of the transmission shaft is larger in the using process, and the braking is instantaneous and cannot be kept in a braking state for a long time; if the brake state can be kept for a long time, a state keeping structure needs to be designed in addition, the existing state keeping structure is complex, parts are numerous, the operation is difficult, the production and the assembly are not facilitated, and the cost is high.
In addition, in a more common braking system, wheels are linked through a transmission shaft, a brake pedal is inserted into the transmission shaft during braking, the transmission shaft is forced to be unable to continue rotating, so that a braking effect is achieved, the structure has the defects that the damage to the transmission shaft is large, the damage to the transmission shaft is likely to be caused to fracture due to excessive force, a notch for the brake pedal to be inserted is formed in the transmission shaft, the strength of the transmission shaft is further reduced, and in order to improve the strength of the transmission shaft, a more common means is to make the diameter of the transmission shaft large or use more firm materials, so that the cost is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the brake system which is simple in structure, smooth in operation and low in cost.
The technical scheme for solving the technical problems is as follows: a braking system, said braking system comprising:
a frame;
the wheel is arranged on the frame, and at least one braking groove is formed in the inner end face of the wheel;
the brake piece is positioned at the inner side of the wheel and is clamped into the brake groove to lock the wheel after being driven;
the brake control device comprises a brake bottom box fixed on the frame, a pedal box connected with the brake bottom box and capable of moving up and down, a spring arranged between the brake bottom box and the pedal box, and a torsion spring and a gear piece arranged in the brake bottom box, wherein one end of the torsion spring is connected with the brake bottom box, the other end of the torsion spring is connected with the gear piece, and a stop block is convexly arranged on the pedal box;
the input end of the brake transmission device is connected with the brake control device, and the output end of the brake transmission device is connected with the brake piece;
when the wheels are in a braking state, the gear piece and the stop block form interference fit and block the pedal box, so that the pedal box cannot move upwards; when the wheels are in a non-braking state, the gear piece and the stop block are not interfered with each other, so that the pedal box can move up and down freely.
Preferably, the gear piece comprises a rotating shaft, a first gear block connected with the rotating shaft, and a second gear block connected with the rotating shaft and arranged in parallel with the first gear block;
the stop block comprises a first stop block and a second stop block which are arranged on the inner wall of the pedal box in parallel, the first stop block and the first stop block are mutually aligned, and the second stop block are mutually aligned;
the brake bottom box in be equipped with the support, the up end of support be equipped with a plurality of grades of steps, the pivot erect and be in the step, the footboard box in be equipped with the extrusion post downwards, the extrusion post be big-end-up's shape, when the footboard box move downwards, the extrusion post with gear butt and promote the pivot and move towards the upper step, when the footboard box move upwards, the torsional spring drive gear and move towards the lower step.
Preferably, the first gear block and the second gear block are triangular and are distributed at angles staggered from each other.
Preferably, the gear member is further provided with a limiting hole, the support is provided with a rotating hole, a limiting shaft is arranged in the limiting hole in a penetrating mode, and the end portion of the limiting shaft is inserted into the rotating hole.
Preferably, the side wall of the pedal box is provided with a guiding barb, the side wall of the brake bottom box is provided with a sliding groove, and the guiding barb is arranged in the sliding groove in a sliding way.
Preferably, the brake transmission device is a pull rope, the brake piece is a brake rod, one end of the pull rope is connected with the brake control device, and the other end of the pull rope is connected with the brake rod.
Preferably, the plurality of braking grooves are uniformly distributed on the wheel in a ring shape.
Preferably, the bottom of the brake bottom box is provided with a lower limit column in an upward protruding manner, the inner top of the pedal box is provided with an upper limit column in a downward protruding manner, the lower end of the spring is sleeved on the lower limit column, and the upper end of the spring is sleeved on the upper limit column.
Preferably, the upper end face of the pedal box is provided with anti-skid patterns.
The invention has the beneficial effects that: the structure is simple and reasonable, the number of parts is reduced, the cost is lower, the production and the assembly are more convenient, the operation is simple and convenient, the performance is reliable when in use, and the brake state or the free movable state can be kept for a long time.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of the present invention.
FIG. 3 is a schematic view of the internal structure of the brake control device in a braking state.
FIG. 4 is a schematic view of the internal structure of the brake control device in an unlocked state.
Fig. 5 is a schematic view showing an internal structure of the brake control apparatus during a process of returning from an unlocked state to a braked state.
Fig. 6 is a schematic structural view of the gear.
Fig. 7 is a schematic structural view of the brake bottom case.
Fig. 8 is a schematic structural view of the pedal box.
Fig. 9 is a schematic structural view of a wheel.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Referring to fig. 1 to 9, a brake system, comprising:
a frame 1;
the wheel 2 is arranged on the frame 1, and at least one braking groove 3 is formed in the inner end surface of the wheel 2;
a brake 4 positioned on the inner side of the wheel 2 and locked in the brake groove 3 after being driven to lock the wheel 2;
the brake control device 5 comprises a brake bottom box 6 fixed on the frame 1, a pedal box 7 connected with the brake bottom box 6 and capable of moving up and down, a spring 8 arranged between the brake bottom box 6 and the pedal box 7, a torsion spring 9 and a gear piece 10 arranged in the brake bottom box 6, wherein one end of the torsion spring 9 is connected with the brake bottom box 6, the other end is connected with the gear piece 10, and a stop block 11 is convexly arranged on the pedal box 7;
the input end of the brake transmission device is connected with the brake control device 5, and the output end of the brake transmission device is connected with the brake piece 4;
when the wheel 2 is in a braking state, the gear member 10 forms interference fit with the stop block 11 and stops the pedal box 7, so that the pedal box 7 cannot move upwards; when the wheel 2 is in a non-braking state, the gear 10 and the stop block 11 do not interfere with each other, so that the pedal box 7 can freely move up and down.
In this embodiment, the gear member 10 includes a rotating shaft 12, a first gear block 13 connected to the rotating shaft 12, and a second gear block 14 connected to the rotating shaft 12 and disposed parallel to the first gear block 13; the stop block 11 comprises a first stop block 15 and a second stop block 16 which are arranged on the inner wall of the pedal box 7 in parallel, the first stop block 13 and the first stop block 15 are mutually aligned, and the second stop block 14 and the second stop block 16 are mutually aligned.
In this embodiment, the first gear block 13 and the second gear block 14 are both triangular and are distributed at angles offset from each other. Preferably, the first gear block 13 approximates a right triangle, the second gear block 14 approximates an equilateral triangle, any one acute angle point of the first gear block 13 is connected with the rotating shaft 12, any one acute angle point of the second gear block 14 is also connected with the rotating shaft 12, and a certain angle difference exists between the other acute angle point of the first gear block 13 and one acute angle point of the second gear block 14, so that the braking system can be switched and maintained in different states by matching with the use of the first stop block 15 and the second stop block 16.
When the pedal box 7 is used, in the downward moving process of the pedal box 7, the second stop block 16 is firstly contacted with the second stop block 14 which approximates an equilateral triangle and pushes the whole stop piece 10 to continuously turn over and move, meanwhile, the stop piece 10 moves from the step of the lowest level to the step of the upper level under the elasticity of the torsion spring 9 and the extrusion force of the extrusion column, at the moment, the pedal box 7 is loosened, the stop block 11 is positioned under the stop piece 10, the first stop block 15 and the second stop block 14 are mutually abutted and limited, and the force balance is achieved under the cooperation of the torsion spring 9 and the extrusion column, so that the stop piece 10 and the pedal box 7 are kept still, a brake system can continuously keep an unlocking state, and the wheels 2 can freely move.
In this embodiment, the brake bottom box 6 is provided with a support 17, the upper end surface of the support 17 is provided with a plurality of steps 18, the rotating shaft 12 is erected on the steps 18, the pedal box 7 is internally provided with a pressing column 19 downwards, the pressing column 19 is in a shape with a big upper part and a small lower part, when the pedal box 7 moves downwards, the pressing column 19 is abutted with the gear piece 10 and pushes the rotating shaft 12 to move towards the upper steps 18, and when the pedal box 7 moves upwards, the torsion spring 9 drives the gear piece 10 to move towards the lower steps 18. By the arrangement of the pressing column 19 in the present embodiment, the pressing column 19 can be forced to press the gear 10 when the pedal box 7 moves up and down, so that the gear 10 is switched between the multi-stage steps 18 and the posture of the gear 10 is changed, thereby realizing the switching of different gear states of the gear 10.
In this embodiment, the gear member 10 is further provided with a limiting hole 20, the bracket 17 is provided with a rotating hole 21, the limiting hole 20 is internally provided with a limiting shaft 22, and the end of the limiting shaft 22 is inserted into the rotating hole 21. Preferably, the limiting hole 20 is oval, so that the stop member 10 can be prevented from moving excessively away from the bracket 17, and the stop member 10 can be turned over and moved according to a predetermined track.
In this embodiment, the side wall of the pedal box 7 is provided with a guiding barb 23, the side wall of the brake bottom box 6 is provided with a sliding groove 24, and the guiding barb 23 is slidably arranged in the sliding groove 24. In this embodiment, a matching manner of the pedal box 7 and the brake bottom box 6 is provided, and the pedal box 7 can move up and down along the sliding groove 24 of the brake bottom box 6 without being separated from the pedal box 7 through the matching of the guiding barbs 23 and the sliding groove 24.
In this embodiment, the brake transmission device is a cable 25, the brake member 4 is a brake lever, one end of the cable 25 is connected with the brake control device 5, and the other end is connected with the brake lever. And compared with a transmission shaft, the transmission structure adopting the inhaul cable 25 is better in installation, and the cost is greatly reduced.
In this embodiment, a plurality of braking grooves 3 are uniformly distributed on the wheel 2 in a ring shape. With the structure of the brake groove 3 of the present embodiment, the wheel 2 can be braked at any time.
In this embodiment, the bottom of the brake bottom box 6 is provided with a lower limit post 26 in an upward protruding manner, the top of the pedal box 7 is provided with an upper limit post 27 in a downward protruding manner, the lower end of the spring 8 is sleeved on the lower limit post 26, and the upper end of the spring 8 is sleeved on the upper limit post 27. Through the cooperation of upper spacing post 27 and lower spacing post 26, play the effect of fixed spring 8 to ensure that spring 8 is used steadily. When the braking system needs to brake, the pedal box 7 is stepped on, the gear piece 10 is separated from the stop block 11, the gear piece 10 is subjected to position change under the action of the torsion spring 9 and is staggered with the stop block 11, then the pedal box 7 is loosened, the pedal box 7 moves upwards to the initial position under the action of the elastic force of the spring 8, the brake piece 4 is inserted into the brake groove, and the wheels 2 are locked.
In this embodiment, the upper end surface of the pedal box 7 is provided with anti-slip patterns 28. By providing the anti-skid threads 28, a certain friction force can be provided, thereby preventing the skid during stepping.
Preferably, the inner wall of the pedal box 7 on the side provided with the stop block 11 is also provided with a clearance 29, and the clearance 29 can ensure that the inner wall and the gear piece cannot interfere in the up-and-down moving process of the pedal box 7, so that the normal use of the gear block is ensured.
Preferably, the steps 18 have three steps. When the braking system is in a braking state, namely the wheel 2 is locked and can not move, the rotating shaft 12 is positioned in the lowest stage 18; when the brake system is in a continuous unlocking state, the rotating shaft 12 is positioned in the middle primary step 18; when the braking system is switched from the unlocking state to the braking state, the rotating shaft 12 is firstly shifted into the highest step 18 and then is directly restored to the braking state.
When the invention is in a braking state, the pedal box 7 is positioned at the highest point under the support of the elastic force of the spring 8, the stop block 11 is positioned above the gear piece 10, the rotating shaft 12 is positioned in the step 18 of the lowest stage, the braking piece is inserted into the braking groove 3, and the wheels 2 are in a locking state.
When the wheel 2 needs to be unlocked, the pedal box 7 is stepped on, the pedal box 7 drives the stay cable 25, the stay cable 25 pulls the brake piece to be separated from the brake groove 3, the wheel 2 is unlocked, meanwhile, the pedal box 7 is stressed to press the spring 8 and move downwards, at the moment, the pressing column 19 starts to be abutted with the gear piece 10 and presses the gear piece 10 from the step 18 of the lowest level to the step 18 of the middle level, the gear piece 10 rotates at a certain angle in the moving process, at the moment, the pedal box 7 is loosened, and because the first stop block 15 is located above the first stop block 13 and stops the first stop block 13, the pedal box 7 is limited to be unable to move upwards, and the brake system can be continuously kept in the unlocking state of the wheel 2.
When the wheel 2 needs to be braked again, the pedal box 7 is stepped on, the pedal box 7 is stressed to squeeze the spring 8 and continuously moves downwards to the lowest point of the brake bottom box 6, at the moment, the squeezing column 19 continuously squeezes the gear piece 10 and enables the gear piece 10 to rise from the middle stage of the step 18 to the highest stage of the step 18, the gear piece 10 continuously rotates for a certain angle in the moving process and enables the stop dog 11 not to interfere with the gear piece 10 any more, then the pedal box 7 is loosened, the pedal box 7 is directly reset to the highest position upwards under the elastic force of the spring 8, meanwhile, the stay cable 25 is loosened, the brake piece is reinserted into the brake groove 3, and the wheel 2 is braked again.
Claims (6)
1. A brake system, said brake system comprising:
a frame;
the wheel is arranged on the frame, and at least one braking groove is formed in the inner end face of the wheel;
the brake piece is positioned at the inner side of the wheel and is clamped into the brake groove to lock the wheel after being driven;
the brake control device comprises a brake bottom box fixed on the frame, a pedal box connected with the brake bottom box and capable of moving up and down, a spring arranged between the brake bottom box and the pedal box, and a torsion spring and a gear piece arranged in the brake bottom box, wherein one end of the torsion spring is connected with the brake bottom box, the other end of the torsion spring is connected with the gear piece, and a stop block is convexly arranged on the pedal box;
the input end of the brake transmission device is connected with the brake control device, and the output end of the brake transmission device is connected with the brake piece;
the gear piece comprises a rotating shaft, a first gear block connected with the rotating shaft and a second gear block connected with the rotating shaft and arranged in parallel with the first gear block;
the stop block comprises a first stop block and a second stop block which are arranged on the inner wall of the pedal box in parallel, the first stop block and the first stop block are mutually aligned, the second stop block and the second stop block are mutually aligned, and the first stop block and the second stop block are triangular and are distributed in a staggered angle;
the brake bottom box is internally provided with a bracket, the upper end surface of the bracket is provided with a plurality of steps, the rotating shaft is erected on the steps, the pedal box is internally provided with a pressing column downwards, the pressing column is in a shape with a big upper part and a small lower part, when the pedal box moves downwards, the pressing column is abutted with the gear piece and pushes the rotating shaft to move towards the upper steps, and when the pedal box moves upwards, the torsion spring drives the gear piece to move towards the lower steps;
the gear piece is also provided with a limiting hole, the bracket is provided with a rotating hole, a limiting shaft is arranged in the limiting hole in a penetrating way, and the end part of the limiting shaft is inserted into the rotating hole;
when the wheels are in a braking state, the gear piece and the stop block form interference fit and block the pedal box, so that the pedal box cannot move upwards; when the wheels are in a non-braking state, the gear piece and the stop block are not interfered with each other, so that the pedal box can move up and down freely.
2. A braking system according to claim 1, wherein: the side wall of the pedal box is provided with a guiding barb, the side wall of the brake bottom box is provided with a sliding groove, and the guiding barb is arranged in the sliding groove in a sliding mode.
3. A braking system according to claim 1, wherein: the brake transmission device is a stay rope, the brake piece is a brake rod, one end of the stay rope is connected with the brake control device, and the other end of the stay rope is connected with the brake rod.
4. A braking system according to claim 1, wherein: the brake grooves are uniformly distributed on the wheels in a ring shape.
5. A braking system according to claim 1, wherein: the brake is characterized in that a lower limit column is arranged on the inner bottom of the brake bottom box in an upward protruding mode, an upper limit column is arranged on the inner top of the pedal box in a downward protruding mode, the lower end of the spring is sleeved on the lower limit column, and the upper end of the spring is sleeved on the upper limit column.
6. A braking system according to claim 1, wherein: the upper end face of the pedal box is provided with anti-skid patterns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811305061.3A CN109353401B (en) | 2018-11-05 | 2018-11-05 | Braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811305061.3A CN109353401B (en) | 2018-11-05 | 2018-11-05 | Braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109353401A CN109353401A (en) | 2019-02-19 |
| CN109353401B true CN109353401B (en) | 2023-09-01 |
Family
ID=65344197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811305061.3A Active CN109353401B (en) | 2018-11-05 | 2018-11-05 | Braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109353401B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110817083B (en) * | 2019-04-26 | 2021-06-04 | 临沂市义兰物流信息科技有限公司 | Fixed assembly quality of commodity circulation freight |
| CN113978539A (en) * | 2020-07-09 | 2022-01-28 | 明门瑞士股份有限公司 | Baby carriage brake mechanism and baby carriage with same |
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| WO2013004025A1 (en) * | 2011-07-06 | 2013-01-10 | 好孩子儿童用品有限公司 | Braking mechanism for child stroller |
| CN202728297U (en) * | 2012-08-14 | 2013-02-13 | 倪文迅 | Braking device of handcart |
| CN203020498U (en) * | 2013-01-08 | 2013-06-26 | 慈溪市佳宝儿童用品有限公司 | Trailer brake device |
| CN203920869U (en) * | 2014-04-25 | 2014-11-05 | 新世纪产品有限公司 | A kind of perambulator with dual brake system |
| CN204137276U (en) * | 2014-09-10 | 2015-02-04 | 慈溪市佳宝儿童用品有限公司 | A kind of brake lock structure and use the trailer of this brake lock structure |
| CN204264228U (en) * | 2014-10-29 | 2015-04-15 | 深圳市科曼医疗设备有限公司 | Brake equipment and vehicle frame |
| CN107878545A (en) * | 2017-11-20 | 2018-04-06 | 中山恒之宝婴童用品有限公司 | A kind of brake assemblies of perambulator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2210794B1 (en) * | 2009-01-23 | 2013-09-18 | Nuna International B.V. | Buggy provided with a braking mechanism |
| US10259483B2 (en) * | 2016-08-10 | 2019-04-16 | Diono, Llc | Braking system for a stroller |
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2018
- 2018-11-05 CN CN201811305061.3A patent/CN109353401B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004025A1 (en) * | 2011-07-06 | 2013-01-10 | 好孩子儿童用品有限公司 | Braking mechanism for child stroller |
| CN202728297U (en) * | 2012-08-14 | 2013-02-13 | 倪文迅 | Braking device of handcart |
| CN203020498U (en) * | 2013-01-08 | 2013-06-26 | 慈溪市佳宝儿童用品有限公司 | Trailer brake device |
| CN203920869U (en) * | 2014-04-25 | 2014-11-05 | 新世纪产品有限公司 | A kind of perambulator with dual brake system |
| CN204137276U (en) * | 2014-09-10 | 2015-02-04 | 慈溪市佳宝儿童用品有限公司 | A kind of brake lock structure and use the trailer of this brake lock structure |
| CN204264228U (en) * | 2014-10-29 | 2015-04-15 | 深圳市科曼医疗设备有限公司 | Brake equipment and vehicle frame |
| CN107878545A (en) * | 2017-11-20 | 2018-04-06 | 中山恒之宝婴童用品有限公司 | A kind of brake assemblies of perambulator |
Also Published As
| Publication number | Publication date |
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| CN109353401A (en) | 2019-02-19 |
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