CN113581274B - Brake mechanism of baby carriage and baby carriage - Google Patents
Brake mechanism of baby carriage and baby carriage Download PDFInfo
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- CN113581274B CN113581274B CN202111011359.5A CN202111011359A CN113581274B CN 113581274 B CN113581274 B CN 113581274B CN 202111011359 A CN202111011359 A CN 202111011359A CN 113581274 B CN113581274 B CN 113581274B
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- 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
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- Combustion & Propulsion (AREA)
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- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a brake mechanism of a baby carrier and the baby carrier, and relates to the technical field of children products, the brake mechanism comprises at least one brake component and a transmission clutch, wherein the brake component is arranged on a roller bearing frame in a sliding manner by taking the radial direction of a movable wheel as the sliding direction; the transmission clutch is arranged on a rotating shaft of the movable wheel; the transmission clutch is characterized by also comprising a rotating piece, a sleeve body mounting seat and a driving assembly, wherein the sleeve body mounting seat is in damping rotary connection with the roller bearing frame through a torsion spring, and is connected with the transmission clutch; the rotating part is fixed on the sleeve body mounting seat, the outer wall of the rotating part is connected with the brake component through a second push-pull connecting piece, the driving assembly is arranged on the rotating part and connected with the transmission clutch, and the driving assembly is used for driving the transmission clutch to perform opening and closing actions. The invention has simple structure, and applies the friction pressure of the brake by using the rotation of the movable wheel; can realize the buffering brake to improve brake sensitivity, the practicality is stronger.
Description
Technical Field
The invention relates to the technical field of children products, in particular to a brake mechanism of a baby carriage and the baby carriage.
Background
The baby carriage is a toy for children, including children's bicycles, children's pushchairs, baby walker, children's tricycle, children's electric motor car, etc. The basic mechanism of the baby carriage is a carriage and a roller device; the baby carriage can move forwards by utilizing the rotation of the roller device; in order to prevent the roller from always advancing due to inertia of the roller, a brake mechanism needs to be installed on the roller device.
The existing brake mechanism is characterized in that a brake disc arranged on a roller main shaft is clamped through a brake part, the brake disc can be directly clamped through the brake mechanism, and a high-speed pin moves a roller to stop rotating; the buffer function cannot be achieved; easily resulting in instability of the stroller when braked.
Disclosure of Invention
The invention aims to provide a brake mechanism of a baby carrier and the baby carrier, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the brake mechanism of a kind of bassinet, including brake component and drive clutch, the said brake component is at least one, and regard radial of the moving wheel as the sliding direction and mount on gyro wheel bearing frame slidably, the said brake component can resist the moving wheel to roll through the friction when supporting the outer wall of moving wheel; the transmission clutch is arranged on a rotating shaft of the movable wheel; the sleeve body mounting seat is in damping rotation connection with the roller bearing frame through a torsion spring, coincides with the axis of a rotating shaft of the movable wheel, is connected with the transmission clutch and can rotate along with the rotation of the transmission clutch; the rotating part is fixed on the sleeve body mounting seat, the outer wall of the rotating part is connected with the brake component through a second push-pull connecting piece, the driving assembly is arranged on the rotating part and connected with the transmission clutch, and the driving assembly is used for driving the transmission clutch to perform opening and closing actions.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the transmission clutch comprises a movable clutch disc and a fixed clutch disc, the fixed clutch disc is arranged on a rotating shaft of the moving wheel, the movable clutch disc is arranged on the sleeve body mounting seat in a sliding mode, the side wall of the movable clutch disc is connected with the driving assembly, and the movable clutch disc can slide on the sleeve body mounting seat under the driving of the driving assembly.
In one alternative: the rotating piece comprises an outer ring body, an inner ring sleeve and at least one radial rod piece, the inner ring sleeve is sleeved on the sleeve body mounting seat, the outer ring body is located outside the inner ring sleeve, a movable connecting seat is arranged on the outer ring body and hinged to the end portion of the second push-pull connecting piece, the radial rod piece is arranged between the inner ring sleeve and the outer ring body, and the end portion of the radial rod piece is detachably connected with the inner ring sleeve and the side wall of the outer ring body respectively.
In one alternative: the driving assembly comprises a sliding groove, a connecting sliding seat and a push-pull driving piece, the sliding groove is arranged on the rotating piece by taking the radial direction of the sleeve body mounting seat as the length direction, the connecting sliding seat is arranged in the sliding groove in a sliding mode, a first push-pull connecting piece is hinged to the connecting sliding seat, and one end of the first push-pull connecting piece is movably connected with the transmission clutch; the push-pull driving piece is arranged on the rotating piece and used for driving the connecting sliding seat to slide in the sliding groove.
In one alternative: the connecting sliding seat is made of a magnetic material, the push-pull driving piece comprises an electromagnetic block and an elastic piece, and the electromagnetic block is arranged at one end part of the sliding groove and is electrically connected with external power supply equipment; the elastic piece is arranged at the other end of the sliding groove and is connected with the side part of the connecting sliding seat.
In one alternative: the brake component comprises a U-shaped clamping brake piece, a sliding clamping sleeve and an elastic convex pad, the U-shaped clamping brake piece is clamped at the edge of the moving wheel, the outer wall of the U-shaped clamping brake piece is hinged with the end part of the second push-pull connecting piece, and the width of a bayonet of the U-shaped clamping brake piece is gradually reduced from the end part to the inner side; the elastic convex pad is arranged at the inner side part of the U-shaped clamping brake piece and can elastically extrude the annular wall of the movable wheel; the sliding clamp is sleeved on the side part of the U-shaped clamping brake piece and is clamped on the roller bearing frame in a sliding manner.
In one alternative: the brake component further comprises protrusions which are respectively arranged on the inner side walls of the U-shaped clamping brake pieces.
A baby carrier comprises the brake mechanism of the baby carrier, and further comprises a baby carrier frame, a supporting part, supporting legs, a roller bearing frame and moving wheels, wherein the supporting part is arranged on the baby carrier frame and used for supporting a seated child; the supporting legs are multiple and are arranged at the corners of the baby carriage frame; the moving wheels are mounted at the bottom ends of the support legs through the roller bearing frames.
Compared with the prior art, the invention has the following beneficial effects:
the driving assembly in the brake mechanism can drive the transmission clutch to be closed, so that the transmission clutch and the sleeve body mounting seat can be driven to rotate along with the rotation of the movable wheel, the rotating piece rotates along with the sleeve body mounting seat, the rotating piece rotates to pull the brake member to move towards the movable wheel through the second push-pull connecting piece, and when the brake member abuts against the annular wall of the movable wheel, the friction force of the brake member can damp to limit the movable wheel to continuously roll, so that the brake function can be realized; the rotation of the moving wheel can continuously rotate the rotating part, so that the acting force of the brake component against the moving wheel can be gradually increased, and the friction force for limiting the rotation of the moving wheel is improved. The invention has simple structure, and utilizes the rotation of the moving wheel to apply the friction pressure of the brake; can realize the buffering brake to improve brake sensitivity, the practicality is stronger.
Drawings
Fig. 1 is a schematic view of the overall structure of a brake mechanism according to an embodiment of the present invention.
Fig. 2 is a schematic view of the mounting structure of the driving assembly on the rotating member in one embodiment of the present invention.
FIG. 3 is a schematic structural view of a brake member according to an embodiment of the present invention.
Fig. 4 is a schematic view of the stroller in one embodiment of the present invention.
Notations for reference numerals: the brake comprises a roller bearing frame 1, a brake component 2, a U-shaped clamping brake piece 21, a sliding clamping sleeve 22, an elastic convex pad 23, a protrusion 24, a moving wheel 3, a rotating piece 5, an outer ring body 51, a radial rod piece 52, an inner ring sleeve 53, a sleeve body mounting seat 6, a first push-pull connecting piece 7, a transmission clutch 8, a movable clutch disc 81, a fixed clutch disc 82, a second push-pull connecting piece 9, a driving component 10, a sliding groove 101, an electromagnetic block 102, a connecting sliding seat 103, an elastic piece 104, a baby carriage frame 11, a supporting part 12 and a supporting leg 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
In one embodiment, as shown in fig. 1 and fig. 2, a brake mechanism of a baby carriage comprises at least one brake member 2 and a transmission clutch 8, wherein the brake member 2 is slidably mounted on a roller carrier 1 in a sliding direction in a radial direction of a moving wheel 3, and the brake member 2 can resist the moving wheel 3 from rolling through friction force when being pressed against the outer wall of the moving wheel 3; the transmission clutch 8 is arranged on a rotating shaft of the moving wheel 3; the roller wheel bearing frame is characterized by further comprising a rotating piece 5, a sleeve body mounting seat 6 and a driving assembly 10, wherein the sleeve body mounting seat 6 is connected with the roller wheel bearing frame 1 in a damping rotation mode through a torsion spring, the sleeve body mounting seat 6 is overlapped with the axis of a rotating shaft of the moving wheel 3, and the sleeve body mounting seat 6 is connected with the transmission clutch 8 and can rotate along with the rotation of the transmission clutch 8; the rotating part 5 is fixed on the sleeve body mounting seat 6, the outer wall of the rotating part 5 is connected with the brake component 2 through a second push-pull connecting piece 9, the driving assembly 10 is arranged on the rotating part 5 and is connected with the transmission clutch 8, and the driving assembly 10 is used for driving the transmission clutch 8 to perform opening and closing actions;
in the implementation process of the embodiment, when the moving wheel 3 is in a rotating state and needs to be braked, the driving assembly 10 drives the transmission clutch 8 to be closed, so that the rotation of the moving wheel 3 drives the transmission clutch 8 and the sleeve body mounting seat 6 to rotate along with the transmission clutch, further the rotating piece 5 rotates along with the sleeve body mounting seat 6, the rotation of the rotating piece 5 pulls the brake member 2 to move towards the moving wheel 3 through the second push-pull connecting piece 9, and when the brake member 2 abuts against the annular wall of the moving wheel 3, the friction force of the brake member can damp and limit the moving wheel 3 to continuously roll, so that the brake function can be achieved; the rotation of the moving wheel 3 can continue to rotate the rotating piece 5, so that the acting force of the brake component 2 against the moving wheel 3 can be gradually increased, and the friction force for limiting the rotation of the moving wheel 3 is improved until the moving wheel 3 completely stops rotating; the brake structure gradually improves the strength of damping limitation by utilizing the rolling of the moving wheel 3, and plays a good role in buffering; the brake locking state is avoided from beginning; when the transmission clutch 8 is in an opening state, the rolling of the moving wheel 3 does not drive the rotating piece 5 to rotate, the rotating piece 5 resets under the action of the torsion spring, and the brake component 2 is driven by the rotation of the rotating piece 5 to be far away from the moving wheel 3 and does not play a role in limiting damping;
in one embodiment, as shown in fig. 1, the transmission clutch 8 includes a movable clutch disc 81 and a fixed clutch disc 82, the fixed clutch disc 82 is disposed on the rotating shaft of the moving wheel 3, the movable clutch disc 81 is slidably disposed on the sheath mounting seat 6, and the side wall of the movable clutch disc 81 is connected to the driving assembly 10, the movable clutch disc 81 can slide on the sheath mounting seat 6 under the driving of the driving assembly 10; in this embodiment, when the movable clutch disc 81 and the fixed clutch disc 82 are in a distant state, the rotation of the moving wheel 3 only drives the fixed clutch disc 82 to rotate, and the sleeve body mounting seat 6 does not rotate; the driving assembly 10 drives the movable clutch disc 81 to move towards the fixed clutch disc 82 and enables the movable clutch disc and the fixed clutch disc to be buckled, and the rotation of the movable wheel 3 drives the sleeve body mounting seat 6 and the transmission clutch 8 to rotate;
in one embodiment, as shown in fig. 1 and 2, the rotating element 5 includes an outer ring 51, an inner ring 53 and at least one radial rod 52, the inner ring 53 is sleeved on the sheath mounting seat 6, the outer ring 51 is located outside the inner ring 53, the outer ring 51 is provided with a movable connecting seat 91, the movable connecting seat 91 is hinged to the end of the second push-pull connecting element 9, the radial rod 52 is arranged between the inner ring 53 and the outer ring 51, and the ends of the radial rod 52 are detachably connected to the side walls of the inner ring 53 and the outer ring 51 respectively; in this embodiment, the detachable connection is a bolt or a snap connection; with the detachable connection, the rotary member 5 can be detached to facilitate servicing of the drive assembly 10 thereon;
the rotating member 5 may be a disc structure or a rod structure in addition to the structure disclosed in the above embodiment;
in one embodiment, as shown in fig. 2, the driving assembly 10 includes a sliding chute 101, a connecting sliding seat 103 and a push-pull driving member, wherein the sliding chute 101 is arranged on the rotating member 5 with the radial direction of the sheath mounting seat 6 as the length direction, the connecting sliding seat 103 is slidably arranged in the sliding chute 101, the connecting sliding seat 103 is hinged with a first push-pull connecting member 7, and one end of the first push-pull connecting member 7 is movably connected with the transmission clutch 8; the push-pull driving piece is arranged on the rotating piece 5 and is used for driving the connecting sliding seat 103 to slide in the sliding groove 101; the connecting sliding seat 103 slides in the sliding groove 101 under the driving of the push-pull driving piece to push and pull the transmission clutch 8 by using the first push-pull connecting piece 7, so that the two parts of the transmission clutch 8 realize switching of an opening and closing state;
in one embodiment, as shown in fig. 2, the connecting slide 103 is made of a magnetic material, the push-pull driving member includes an electromagnetic block 102 and an elastic member 104, the electromagnetic block 102 is disposed at one end of the sliding slot 101 and is electrically connected to an external power supply device; the elastic piece 104 is arranged at the other end of the sliding groove 101 and is connected with the side part of the connecting sliding seat 103; in this embodiment, the electromagnetic block 102 is energized and magnetized to generate a magnetic attraction force with the connection sliding base 103, so that the connection sliding base 103 overcomes the pulling force of the elastic member 104 and moves toward the electromagnetic block 102; the electromagnetic block 102 has no magnetism, and the connecting sliding seat 103 moves back under the elastic force of the elastic piece 104; thus, the connecting sliding seat 103 can slide in the sliding groove 101; wherein, the elastic member 104 is a spring plate or a spring;
besides the structure disclosed in the above embodiment, the push-pull driving member can also be an air cylinder or an electric telescopic rod;
in one embodiment, as shown in fig. 1 and 3, the brake component 2 comprises a U-shaped clamping brake piece 21, a sliding clamping sleeve 22 and an elastic convex pad 23, the U-shaped clamping brake piece 21 is clamped on the edge of the moving wheel 3, the outer wall of the U-shaped clamping brake piece 21 is hinged with the end of the second push-pull connecting piece 9, and the clamping width of the U-shaped clamping brake piece 21 is gradually reduced from the end to the inner side; the elastic convex pad 23 is arranged at the inner side part of the U-shaped clamping brake piece 21 and can elastically extrude the annular wall of the moving wheel 3; the sliding clamping sleeve 22 is arranged on the side part of the U-shaped clamping brake piece 21 and is clamped on the roller bearing frame 1 in a sliding manner; in this embodiment, when the brake member 2 moves towards the moving wheel 3, since the width of the bayonet of the U-shaped clamping brake piece 21 gradually decreases from the end to the inner side, the inner side wall of the U-shaped clamping brake piece 21 gradually presses against the end surface of the moving wheel 3, and the rotation of the moving wheel 3 is limited; and the elastic convex pad 23 and the annular wall of the moving wheel 3 are elastically extruded to limit the rotation of the moving wheel 3;
in one embodiment, as shown in fig. 3, the braking member 2 further comprises protrusions 24, the protrusions 24 are respectively arranged on the inner side walls of the U-shaped clamping braking piece 21; the arrangement of the bulge 24 increases the friction force with the end surface of the moving wheel 3;
as shown in fig. 4, a baby carriage comprising the brake mechanism of the above embodiment is also provided; the baby carriage also comprises a baby carriage frame 11, a supporting part 12, support legs 13, a roller carrier 1 and moving wheels 3, wherein the supporting part 12 is arranged on the baby carriage frame 11 and is used for supporting a seated child; the supporting feet 13 are multiple and are arranged at the corners of the baby carriage frame 11; the moving wheels 3 are mounted at the bottom ends of the support legs 13 through the roller carriers 1;
the embodiment discloses a brake mechanism of a baby carriage and the baby carriage based on the brake mechanism; when the moving wheel 3 is in a rotating state and needs to be braked, the driving assembly 10 can drive the transmission clutch 8 to be closed, so that the rotation of the moving wheel 3 can drive the transmission clutch 8 and the sleeve body mounting seat 6 to rotate along with the transmission clutch, further the rotating piece 5 rotates along with the sleeve body mounting seat 6, the rotation of the rotating piece 5 pulls the brake component 2 to move towards the moving wheel 3 through the second push-pull connecting piece 9, and when the brake component 2 abuts against the annular wall of the moving wheel 3, the friction force of the brake component can damp and limit the moving wheel 3 to continuously roll, so that the brake function can be achieved; the rotation of the moving wheel 3 can continue to rotate the rotating piece 5, so that the acting force of the brake component 2 against the moving wheel 3 can be gradually increased, and the friction force for limiting the rotation of the moving wheel 3 is improved until the moving wheel 3 completely stops rotating; the brake structure gradually improves the strength of damping limitation by utilizing the rolling of the moving wheel 3, and plays a good role in buffering; the brake locking state is avoided from beginning; when the transmission clutch 8 is in an open state, the rolling of the moving wheel 3 does not drive the rotating piece 5 to rotate, the rotating piece 5 is reset under the action of the torsion spring, and the brake component 2 is driven by the rotation of the rotating piece 5 to be far away from the moving wheel 3 without playing a damping limiting role.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (7)
1. The brake mechanism of a kind of bassinet, including brake component and drive clutch, the said brake component is at least one, and regard radial of the moving wheel as the sliding direction and mount on gyro wheel bearing frame slidably, the said brake component can resist the moving wheel to roll through the friction when supporting the outer wall of moving wheel; the transmission clutch is arranged on a rotating shaft of the movable wheel;
the device also comprises a rotating part, a sleeve body mounting seat and a driving assembly;
the sleeve body mounting seat is rotationally connected with the roller bearing frame through torsion spring damping, the sleeve body mounting seat is overlapped with the axis of the rotating shaft of the movable wheel, and the sleeve body mounting seat is connected with the transmission clutch and can rotate along with the rotation of the transmission clutch;
the rotating part is fixed on the sleeve body mounting seat, and the outer wall of the rotating part is connected with the brake component through a second push-pull connecting piece;
the driving assembly is arranged on the rotating piece and connected with the transmission clutch, and the driving assembly is used for driving the transmission clutch to perform opening and closing actions;
the transmission clutch comprises a movable clutch disc and a fixed clutch disc;
the fixed clutch disc is arranged on a rotating shaft of the movable wheel;
the movable clutch disc is arranged on the sleeve body mounting seat in a sliding mode, the side wall of the movable clutch disc is connected with the driving assembly, and the movable clutch disc can slide on the sleeve body mounting seat under the driving of the driving assembly;
the rotation of the movable wheel can drive the transmission clutch and the sleeve body mounting seat to rotate along with the transmission clutch and the sleeve body mounting seat, so that the rotating piece rotates along with the sleeve body mounting seat, the rotating piece rotates to pull the brake member to move towards the movable wheel through the second push-pull connecting piece, and when the brake member abuts against the side wall of the movable wheel, the friction force of the brake member can damp and limit the movable wheel to continuously roll, so that the brake effect can be achieved; the rotation of the moving wheel will continue to rotate the rotating part, so that the acting force of the brake member against the moving wheel will gradually increase, and the friction force for preventing the moving wheel from rotating is increased.
2. A brake mechanism for a stroller according to claim 1, wherein said rotary member comprises an outer ring, an inner ring and at least one radial rod;
the inner ring sleeve is sleeved on the sleeve body mounting seat;
the outer ring body is positioned outside the inner ring sleeve, and a movable connecting seat is arranged on the outer ring body and is hinged with the end part of the second push-pull connecting piece;
the radial rod piece is arranged between the inner ring sleeve and the outer ring body, and the end part of the radial rod piece is detachably connected with the inner ring sleeve and the side wall of the outer ring body respectively.
3. A brake mechanism for a stroller according to claim 1, wherein said drive assembly comprises a slide slot, a connecting slide and a push-pull drive member;
the sliding groove is arranged on the rotating part by taking the radial direction of the sleeve body mounting seat as the length direction;
the connecting sliding seat is arranged in the sliding groove in a sliding manner, a first push-pull connecting piece is hinged to the connecting sliding seat, and one end of the first push-pull connecting piece is movably connected with the transmission clutch;
the push-pull driving piece is arranged on the rotating piece and used for driving the connecting sliding seat to slide in the sliding groove.
4. A brake mechanism for a stroller according to claim 3, wherein the connection slide is made of a magnetic material;
the push-pull driving piece comprises an electromagnetic block and an elastic piece;
the electromagnetic block is arranged at one end part of the sliding chute and is electrically connected with external power supply equipment;
the elastic piece is arranged at the other end of the sliding groove and is connected with the side part of the connecting sliding seat.
5. A stroller brake mechanism according to claim 1, wherein the brake member comprises a U-shaped clamping brake member, a sliding ferrule and a resilient pad;
the U-shaped clamping brake piece is clamped at the edge of the moving wheel, the outer wall of the U-shaped clamping brake piece is hinged with the end part of the second push-pull connecting piece, and the width of a bayonet of the U-shaped clamping brake piece is gradually reduced from the end part to the inner side;
the elastic convex pad is arranged at the inner side part of the U-shaped clamping brake piece and can elastically extrude the annular wall of the movable wheel;
the sliding clamp is sleeved on the side part of the U-shaped clamping brake piece and is clamped on the roller bearing frame in a sliding manner.
6. A brake mechanism for a stroller according to claim 5, wherein the brake member further comprises protrusions on respective inner side walls of the U-shaped clamping brake.
7. A stroller comprising the brake mechanism of the stroller of any of claims 1-6, further comprising a stroller frame, supports, legs, a roller carrier and movable wheels, the supports being provided on the stroller frame for supporting a seated child; the supporting legs are multiple and are arranged at the corners of the baby carriage frame; the moving wheels are mounted at the bottom ends of the support legs through the roller bearing frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111011359.5A CN113581274B (en) | 2021-08-31 | 2021-08-31 | Brake mechanism of baby carriage and baby carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111011359.5A CN113581274B (en) | 2021-08-31 | 2021-08-31 | Brake mechanism of baby carriage and baby carriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113581274A CN113581274A (en) | 2021-11-02 |
| CN113581274B true CN113581274B (en) | 2022-12-27 |
Family
ID=78240413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111011359.5A Active CN113581274B (en) | 2021-08-31 | 2021-08-31 | Brake mechanism of baby carriage and baby carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113581274B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191008869A (en) * | 1910-04-12 | 1911-03-09 | Edwin Atkins | Improvements in or relating to Folding Perambulators. |
| CH564704A5 (en) * | 1973-11-02 | 1975-07-31 | Inventio Ag | |
| KR200180904Y1 (en) * | 1999-12-07 | 2000-05-15 | 김성규 | Power driven hand cart |
| AT511218B1 (en) * | 2011-07-06 | 2012-10-15 | Peter Dipl Ing Bodner | SELF-REINFORCING BRAKE FOR ROLLING SHOES |
| CN105604789B (en) * | 2016-03-02 | 2018-01-23 | 山东交通学院 | A kind of Wind turbines ask for torque type brake apparatus |
| CN208827905U (en) * | 2018-08-27 | 2019-05-07 | 金华金龙工具有限公司 | A kind of trolley with brake function |
| CN209290473U (en) * | 2018-12-05 | 2019-08-23 | 深圳市鑫鼎泰实业有限公司 | A kind of braking device of baby carriage |
-
2021
- 2021-08-31 CN CN202111011359.5A patent/CN113581274B/en active Active
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| CN113581274A (en) | 2021-11-02 |
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