CN218750961U - Baby stroller with automatic overspeed brake function - Google Patents
Baby stroller with automatic overspeed brake function Download PDFInfo
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- CN218750961U CN218750961U CN202223385382.3U CN202223385382U CN218750961U CN 218750961 U CN218750961 U CN 218750961U CN 202223385382 U CN202223385382 U CN 202223385382U CN 218750961 U CN218750961 U CN 218750961U
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Abstract
The utility model provides an overspeed automatic brake's baby's shallow, include: the friction speed reducing device comprises a wheel frame and a wheel which can rotate relative to the wheel frame in the circumferential direction, wherein a centrifugal brake mechanism and a friction speed reducing device which are used for braking the wheel are arranged between the wheel frame and the wheel, and the friction speed reducing device comprises a friction brake pad which is abutted against the centrifugal brake mechanism; when the wheel rotates at a high speed, the centrifugal brake mechanism is clamped with the wheel under the action of centrifugal force and rotates synchronously, and friction is generated between the friction brake pad and the centrifugal brake mechanism so as to decelerate the wheel. The utility model discloses automatic brake's baby's shallow exceeds speed limit is equipped with centrifugal brake mechanism, can be when the shallow exceeds speed limit automatic brake speed reduction to meet accident, the security is high.
Description
Technical Field
The utility model relates to a baby's shallow technical field particularly, relates to an overspeed automatic brake's baby's shallow.
Background
In the prior art, a stroller generally comprises a frame and a wheel assembly disposed at the bottom of the frame, and a brake mechanism is usually installed between the frame and a rear wheel to brake the stroller when necessary.
However, the existing brake mechanism has a complex structure, needs to be manually switched between a brake position and an unlocking position by an adult, has a complex operation mode, is easy to cause landslide and overspeed of the baby carriage due to forgetting to lock, further causes a series of safety accidents, and has low use safety.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims to solve the problem that a baby's shallow of hypervelocity automatic brake is provided, is equipped with centrifugal brake mechanism, can be when the shallow hypervelocity automatic brake slow down to in accident, the security is high.
(II) technical scheme
For solving the technical problem, the utility model provides an overspeed automatic brake's baby's shallow, include: the friction brake block comprises a friction brake block which is abutted against the centrifugal brake mechanism, so that a friction force exists between the centrifugal brake mechanism and the friction brake block when the centrifugal brake mechanism rotates relative to the friction brake block, and the friction brake block is made of rubber; when the wheel rotates at a high speed, the centrifugal brake mechanism is clamped with the wheel under the action of centrifugal force and rotates synchronously, and friction is generated between the friction brake pad and the centrifugal brake mechanism so as to decelerate the wheel; the sliding friction is generated through the relative motion between the friction brake block and the centrifugal brake mechanism, so that the wheel is slowly decelerated to a safe low-speed rotation state, and is automatically braked and decelerated during overspeed, and the use is safe and reliable; because during the brake friction brake block with still there is relative motion between the centrifugal brake mechanism, does not lock, consequently can avoid the condition of emergency braking, and then avoid owing the wheel emergency braking causes the risk that the baby throws away the shallow.
Furthermore, the wheel frame is provided with an installation shaft for installing the wheel, the centrifugal brake mechanism comprises a ratchet wheel disc assembly, an elastic piece and a centrifugal block movably clamped with the ratchet wheel disc assembly, the ratchet wheel disc assembly is rotatably sleeved on the installation shaft, the friction brake block is abutted against the ratchet wheel disc assembly, and the centrifugal block is movably arranged on the wheel; when the wheel rotates at a high speed, the centrifugal block is clamped with the ratchet wheel disc assembly under the action of centrifugal force; when the wheel rotates at a low speed or stops rotating, the elastic piece is used for driving the centrifugal block to be separated from the ratchet wheel disc assembly; when the wheel rotates at a high speed, the centrifugal block overcomes the elasticity of the elastic piece to move under the action of centrifugal force and is clamped with the ratchet wheel disc assembly, the wheel drives the ratchet wheel disc assembly to rotate synchronously through the centrifugal block, the ratchet wheel disc assembly receives friction force generated by the friction brake block, the direction of the friction force is opposite to the direction of rotation of the ratchet wheel disc assembly, and therefore the ratchet wheel disc assembly is decelerated, and the wheel is braked and decelerated to achieve the safety purpose; when the wheel rotates at a low speed or stops rotating, the elastic piece is used for driving the centrifugal block to be separated from the ratchet wheel disc assembly, the centrifugal block is not enough to move to a clamping position with the ratchet wheel disc assembly due to centrifugal force, and the friction force of the friction brake pad can not act on the wheel, so that the wheel can normally rotate at the low speed.
Furthermore, the elastic component is a tension spring, two ends of the elastic component are respectively connected with the centrifugal block and the wheel, and one end of the centrifugal block, which is far away from the elastic component, is hinged with the wheel.
Furthermore, the ratchet wheel disc assembly comprises a ratchet wheel and a disc brake disc fixedly connected with the ratchet wheel, a pawl corresponding to the ratchet wheel is formed on the centrifugal block, and the friction brake sheet abuts against the disc brake disc.
Furthermore, a balancing weight is arranged on the centrifugal block.
Furthermore, a limiting protrusion corresponding to the centrifugal block is arranged on the wheel, and when the wheel stops rotating, the centrifugal block abuts against the limiting protrusion under the action of the elastic piece.
Furthermore, the friction reduction gear still including set up in the friction brake piece is kept away from the compression spring of ratchet dish subassembly one side, compression spring be used for with the friction brake piece compress tightly in on the ratchet dish subassembly.
Furthermore, a pressing block is arranged between the friction brake pad and the compression spring, the friction brake pad is fixedly connected to the pressing block, and one end of the compression spring is abutted to the pressing block.
Furthermore, the friction reduction gear still includes the adjusting part that is used for adjusting compression spring compression amount, adjusting part include nut ejector pad and with nut ejector pad threaded connection's adjusting bolt, compression spring keeps away from the one end butt of friction brake piece in on the nut ejector pad.
Furthermore, friction decelerator still includes the casing, compression spring nut ejector pad reaches adjusting bolt all sets up in the casing, be provided with on the casing and be used for observing visual window and the scale mark of nut ejector pad position.
Furthermore, two centrifugal blocks are arranged, a first clamping groove and a second clamping groove are formed in the ratchet wheel disc assembly, the wheel has a first circumferential direction and a second circumferential direction, and when the wheel rotates in the first circumferential direction, one of the centrifugal blocks is clamped with the first clamping groove; when the wheel rotates in the second circumferential direction, the other centrifugal block is clamped with the second clamping groove.
(III) advantageous effects
The utility model discloses baby stroller with automatic braking at overspeed is provided with a centrifugal brake mechanism and a friction speed reducer, and can automatically brake and decelerate when the stroller is overspeed so as to avoid accidents and has high safety; when the wheel rotates at a high speed, the centrifugal block is clamped with the ratchet wheel disc component under the action of centrifugal force, and the ratchet wheel disc component is subjected to friction force generated by the friction brake block, so that the wheel is braked and decelerated to achieve the aim of safety; because the friction brake block and the centrifugal brake mechanism still have relative motion and are not locked when braking, the emergency brake can be avoided, and the risk that the baby is thrown out of the stroller due to the emergency brake of the wheels is further avoided; the centrifugal block is provided with a balancing weight which is embedded and arranged on the centrifugal block and used for increasing the overall weight of the centrifugal block, so that the centrifugal block is clamped with the ratchet wheel more stably when the wheel rotates at high speed; when the wheel stops rotating, the centrifugal block is abutted against the limiting bulge under the action of the elastic piece, so that the influence of overlarge swing amplitude of the centrifugal block on the rotation stability of the wheel during the rotation of the wheel is avoided; the friction force between the friction brake pad and the disc brake disc is adjusted by adjusting the compression amount of the compression spring; the shell is provided with a visual window for observing the position of the nut push block and scale marks, so that a user can adjust the compression amount of the compression spring as required.
Drawings
FIG. 1 is a perspective view of the overspeed automatically braked stroller of the present invention;
FIG. 2 is a first cross-sectional view of the overspeed automatically braked baby stroller of the present invention;
FIG. 3 is a second sectional view of the overspeed automatically braked stroller of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic structural view of the overspeed automatic braking baby carriage centrifugal block of the present invention engaged with the ratchet wheel disc assembly;
FIG. 6 is a schematic structural view of the ratchet wheel of the overspeed automatic braking stroller of the present invention;
FIG. 7 is a schematic structural view of the friction reduction device of the baby stroller with overspeed automatic braking of the present invention;
FIG. 8 is a schematic structural view of the overspeed automatically braking stroller adjusting assembly of the present invention;
the corresponding part names for the various reference numbers in the figures are: 1 is a wheel frame, 101 is a mounting shaft, 2 is a wheel, 21 is a limit protrusion, 3 is a ratchet wheel disc assembly, 31 is a ratchet wheel, 311 is a protrusion, 32 is a disc brake disc, 33 is a first clamping groove, 34 is a second clamping groove, 4 is an elastic part, 5 is a centrifugal block, 51 is a pawl, 52 is a balancing weight, 6 is a friction brake pad, 71 is a compression spring, 72 is a pressing block, 73 is a nut pushing block, 74 is an adjusting bolt, 741 is a screw cap, 75 is a shell, 751 is a visible window, 752 is a scale mark, 8 is a first bearing, and 9 is a second bearing.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1-8, the present invention provides an overspeed automatic braking baby stroller, comprising: the wheel frame 1 and the wheel 2 which can rotate circumferentially relative to the wheel frame 1 are arranged, a centrifugal brake mechanism and a friction speed reducing device which are used for braking the wheel 2 are arranged between the wheel frame 1 and the wheel 2, the friction speed reducing device comprises a friction brake pad 6 which is abutted against the centrifugal brake mechanism, so that a friction force exists between the centrifugal brake mechanism and the friction brake pad 6 when the centrifugal brake mechanism rotates relative to the friction brake pad 6, and the friction brake pad 6 is made of rubber; when the wheel 2 rotates at a high speed, the centrifugal brake mechanism is clamped with the wheel 2 under the action of centrifugal force and synchronously rotates, and friction is generated between the friction brake block 6 and the centrifugal brake mechanism so as to decelerate the wheel 2; the sliding friction is generated through the relative motion between the friction brake block 6 and the centrifugal brake mechanism, so that the wheel 2 is slowly decelerated to a safe low-speed rotation state, and is automatically braked and decelerated during overspeed, and the use is safe and reliable; because the relative motion still exists between friction brake block 6 and the centrifugal brake mechanism during the brake, do not lock, consequently can avoid the condition of emergency braking, and then avoid causing the risk that the baby throws away the shallow because wheel 2 emergency braking.
Referring to fig. 1-3, a wheel frame 1 is provided with a mounting shaft 101 for mounting a wheel 2, a centrifugal brake mechanism includes a ratchet disc assembly 3, an elastic member 4 and a centrifugal block 5 movably engaged with the ratchet disc assembly 3, the ratchet disc assembly 3 is rotatably sleeved on the mounting shaft 101, a friction brake pad 6 abuts against the ratchet disc assembly 3, and the centrifugal block 5 is movably disposed on the wheel 2; when the wheel 2 rotates at a high speed, the centrifugal block 5 is clamped with the ratchet wheel disc component 3 under the action of centrifugal force; when the wheel 2 rotates at a low speed or stops rotating, the elastic piece 4 is used for driving the centrifugal block 5 to be separated from the ratchet wheel disc component 3; when the wheel 2 rotates at a high speed, the centrifugal block 5 overcomes the elasticity of the elastic piece 4 to move under the action of centrifugal force and is clamped with the ratchet disc component 3, at the moment, the wheel 2 drives the ratchet disc component 3 to rotate synchronously through the centrifugal block 5, at the moment, the ratchet disc component 3 is subjected to friction force generated by the friction brake block 6, the direction of the friction force is opposite to the direction of rotation of the ratchet disc component 3, so that the ratchet disc component 3 is decelerated, and the wheel 2 is braked and decelerated to achieve the purpose of safety; when the wheel 2 rotates at a low speed or stops rotating, the elastic member 4 is used for driving the centrifugal block 5 to disengage from the ratchet disc assembly 3, at this time, the centrifugal block 5 is not subjected to a centrifugal force enough to move the centrifugal block 5 to a position of being clamped with the ratchet disc assembly 3, and at this time, the friction force of the friction brake pad 6 cannot act on the wheel 2, so that the wheel 2 normally rotates at a low speed.
Referring to fig. 1 and 3, the elastic element 4 is a tension spring, two ends of the elastic element 4 are respectively connected with the centrifugal block 5 and the wheel 2, and the centrifugal block 5 and the ratchet wheel disc assembly 3 are in a disengaged state under the tension of the tension spring; one end of the centrifugal block 5, which is far away from the elastic piece 4, is hinged to the wheel 2, so that the centrifugal block 5 swings around the hinged point during the rotation of the wheel 2.
Referring to fig. 2 to 6, the ratchet disc assembly 3 includes a ratchet wheel 31 and a disc brake disc 32 fixedly connected to the ratchet wheel 31, the ratchet wheel 31 and the disc brake disc 32 are fixed by bolts, and two centrifugal blocks 5 are disposed and are both disposed inside the ratchet wheel 31; the disc brake disc 32 is made of stainless steel, so that the service life is long; a pawl 51 corresponding to the ratchet wheel 31 is formed on the centrifugal block 5, and a plurality of protrusions 311 corresponding to the pawl 51 are annularly and equally spaced on the inner side of the ratchet wheel 31; when the wheel 2 rotates at a high speed, the pawl 51 correspondingly abuts against one of the bulges 311 for limiting; the friction brake block 6 abuts against the disc brake disc 32, so that a large friction force is generated when the friction brake block 6 and the disc brake disc 32 move relatively.
Referring to fig. 2 and 5, the centrifugal block 5 is provided with a weight block 52, the weight block 52 is embedded in the centrifugal block 5, and the weight block 52 is made of stainless steel material and is used for increasing the overall weight of the centrifugal block 5 to increase the centrifugal force when the centrifugal block 5 rotates, so that the centrifugal block 5 is more firmly engaged with the ratchet 31 when the wheel 2 rotates at a high speed.
Referring to fig. 3, a limiting bulge 21 corresponding to the centrifugal block 5 is arranged on the wheel 2, and the limiting bulge 21 is integrally formed on the wheel 2; when the wheel 2 stops rotating, the centrifugal block 5 is abutted against the limiting protrusion 21 under the action of the elastic piece 4, so that the swinging range of the centrifugal block 5 is reduced, and the influence of overlarge swinging amplitude of the centrifugal block 5 on the rotation stability of the wheel 2 when the wheel 2 rotates is avoided.
Referring to fig. 1, 7 and 8, the friction deceleration device further includes a compression spring 71 disposed on a side of the friction brake pad 6 away from the ratchet plate assembly 3, the compression spring 71 is used for pressing the friction brake pad 6 against the ratchet plate assembly 3 to increase the friction force between the friction brake pad 6 and the ratchet plate 31; the baby stroller has two working conditions, namely flat ground movement and slope movement in the actual use process; when the baby stroller moves on a flat ground and the wheel 2 rotates at a high speed, the ratchet wheel 31 is clamped with the centrifugal block 5, if the friction force of the ground to the wheel 2 is less than or equal to the static friction force between the friction brake block 6 and the disc brake disc 32, the friction brake block 6 and the disc brake disc 32 do not slide relatively, and the wheel 2 is braked; if the friction force of the ground to the wheel 2 is greater than the static friction force between the friction brake block 6 and the disc brake disc 32, relative sliding occurs between the friction brake block 6 and the disc brake disc 32, the static friction force between the friction brake block 6 and the disc brake disc 32 is converted into sliding friction force, and the wheel 2 is decelerated to a safe speed in a short time; when the baby stroller moves on a slope and the wheel 2 rotates at a high speed, the ratchet wheel 31 is clamped with the centrifugal block 5, if the friction force of the ground to the wheel 2 is less than or equal to the static friction force between the friction brake block 6 and the disc brake disc 32, the friction brake block 6 and the disc brake disc 32 do not slide relatively, and the wheel 2 is braked; if the friction force of the ground to the wheel 2 is greater than the static friction force between the friction brake block 6 and the disc brake disc 32, relative sliding occurs between the friction brake block 6 and the disc brake disc 32, the static friction force between the friction brake block 6 and the disc brake disc 32 is converted into sliding friction force, and the wheel 2 is decelerated to a safe speed in a short time, so that the cart moves on a slope at the safe speed.
Referring to fig. 2, 7 and 8, a pressing block 72 is disposed between the friction brake pad 6 and the compression spring 71, the friction brake pad 6 is fixedly connected to the pressing block 72, in this embodiment, the friction brake pad 6 is a rubber patch and is adhered to the pressing block 72; one end of the compression spring 71 abuts against the pressing piece 72, so that the pressing piece 72 presses the friction brake pad 6 against the disc brake disc 32.
Referring to fig. 1, 7 and 8, the friction deceleration device further includes an adjusting assembly for adjusting the compression amount of the compression spring 71, and the compression amount of the compression spring 71 is adjusted to adjust the pressure of the friction brake pad 6 on the disc brake disc 32, so as to adjust the friction force between the friction brake pad 6 and the disc brake disc 32, wherein the larger the friction force is, the better the braking deceleration effect of the wheel 2 is; the adjusting assembly comprises a nut pushing block 73 and an adjusting bolt 74 in threaded connection with the nut pushing block 73, one end, far away from the friction brake pad 6, of the compression spring 71 abuts against the nut pushing block 73, and the adjusting bolt 74 is rotated to enable the nut pushing block 73 to move along the axial direction of the adjusting bolt 74; when the nut pushing block 73 moves toward the compression spring 71 side, the compression spring 71 is compressed; when the nut pushing block 73 moves toward the opposite side of the compression spring 71, the compression spring 71 is extended.
Referring to fig. 1, 7 and 8, the friction speed reducer further includes a housing 75, the compression spring 71, the nut pushing block 73 and the adjusting bolt 74 are all disposed in the housing 75, a screw cap 741 is fixedly disposed at a side end of the adjusting bolt 74, and the adjusting bolt 74 can be driven to synchronously rotate only by rotating the screw cap 741 during adjustment, so that the operation is convenient; a visible window 751 for observing the position of the nut pushing block 73 and a scale mark 752 are arranged on the shell 75; the position of the nut pushing block 73 can be observed conveniently by a user through the visual window 751, so that the user can adjust the compression amount of the compression spring 71 as required, the scale marks 752 are distributed along the moving direction of the nut pushing block 73, in this embodiment, the scale marks 752 are a plurality of grooves, and the scale marks 752 facilitate the user to observe the sliding position of the nut pushing block 73.
Referring to fig. 1 and 2, a first bearing 8 is disposed between the ratchet plate assembly 3 and the mounting shaft 101 such that the ratchet plate assembly 3 can rotate circumferentially relative to the mounting shaft 101; a second bearing 9 is provided between the wheel 2 and the mounting shaft 101 so that the wheel 2 can rotate circumferentially with respect to the mounting shaft 101 smoothly.
Referring to fig. 1, 3 and 4, two centrifugal blocks 5 are provided, the two centrifugal blocks 5 are arranged in an axisymmetrical manner, a first engaging groove 33 and a second engaging groove 34 are formed on the ratchet disc assembly 3, and the first engaging groove 33 and the second engaging groove 34 are respectively formed on two sides of the protrusion 311; the wheel 2 has a first circumferential direction and a second circumferential direction, and when the wheel 2 rotates in the first circumferential direction, one of the centrifugal blocks 5 is engaged with the first engaging groove 33; when the wheel 2 rotates in the second circumferential direction, the other centrifugal block 5 is clamped with the second clamping groove 34, so that the baby stroller can automatically brake when the baby stroller is overspeed in the forward and backward directions, and the safety is high; referring to fig. 3, the first circumferential direction is clockwise, and the second circumferential direction is counterclockwise.
The utility model discloses baby's shallow of hypervelocity automatic brake is provided with visual window and scale mark that are used for observing nut ejector pad position on the casing to the user adjusts the compression volume of compression spring as required; the trolley is provided with a centrifugal brake mechanism and a friction speed reducing device, so that the trolley can automatically brake and reduce speed when the trolley is overspeed, accidents are avoided, and the safety is high; when the wheel rotates at a high speed, the centrifugal block is clamped with the ratchet wheel disc component under the action of centrifugal force, and the ratchet wheel disc component is subjected to friction force generated by the friction brake block, so that the wheel is braked and decelerated to achieve the aim of safety; because the friction brake block and the centrifugal brake mechanism still have relative motion and are not locked when braking, the situation of sudden braking can be avoided, and the risk that the baby is thrown out of the stroller due to the sudden braking of the wheels is further avoided; the centrifugal block is provided with a balancing weight which is embedded and arranged on the centrifugal block and used for increasing the overall weight of the centrifugal block, so that the centrifugal block is clamped with the ratchet wheel more stably when the wheel rotates at high speed; when the wheel stops rotating, the centrifugal block is abutted against the limiting bulge under the action of the elastic piece, so that the influence of overlarge swing amplitude of the centrifugal block on the rotation stability of the wheel during the rotation of the wheel is avoided; the friction force between the friction brake pad and the disc brake disc is adjusted by adjusting the compression amount of the compression spring.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An over-speed auto-braking stroller, comprising: the wheel comprises a wheel frame (1) and wheels (2) capable of rotating circumferentially relative to the wheel frame (1), and is characterized in that a centrifugal brake mechanism and a friction speed reducing device are arranged between the wheel frame (1) and the wheels (2), and the friction speed reducing device comprises a friction brake pad (6) which is abutted against the centrifugal brake mechanism; when the wheel (2) rotates at a high speed, the centrifugal brake mechanism is clamped with the wheel (2) under the action of centrifugal force and rotates synchronously, and friction is generated between the friction brake pad (6) and the centrifugal brake mechanism, so that the wheel (2) is decelerated.
2. The automatic overspeed braking stroller according to claim 1, wherein the wheel frame (1) is provided with a mounting shaft (101) for mounting the wheel (2), the centrifugal brake mechanism comprises a ratchet disc assembly (3), an elastic member (4) and a centrifugal block (5) movably engaged with the ratchet disc assembly (3), the ratchet disc assembly (3) is rotatably sleeved on the mounting shaft (101), the friction brake pad (6) abuts against the ratchet disc assembly (3), and the centrifugal block (5) is movably disposed on the wheel (2); when the wheel (2) rotates at a high speed, the centrifugal block (5) is clamped with the ratchet wheel disc component (3) under the action of centrifugal force; when the wheel (2) rotates at a low speed or stops rotating, the elastic piece (4) is used for driving the centrifugal block (5) to be separated from the ratchet wheel disc assembly (3).
3. The automatic braking overspeed stroller according to claim 2, wherein the elastic member (4) is a tension spring, two ends of the elastic member (4) are respectively connected to the centrifugal block (5) and the wheel (2), and one end of the centrifugal block (5) away from the elastic member (4) is hinged to the wheel (2).
4. The automatic overspeed braking stroller as recited in claim 2, wherein said ratchet disc assembly (3) comprises a ratchet wheel (31) and a disc brake disc (32) fixedly connected to said ratchet wheel (31), said centrifugal block (5) is formed with a pawl (51) corresponding to said ratchet wheel (31), and said friction brake pad (6) abuts against said disc brake disc (32).
5. The automatic ultraspeed braking stroller according to claim 2, wherein the centrifugal block (5) is provided with a weight block (52).
6. The automatic braking overspeed stroller according to claim 2, wherein the wheel (2) is provided with a limit protrusion (21) corresponding to the centrifugal block (5), and when the wheel (2) stops rotating, the centrifugal block (5) is abutted against the limit protrusion (21) under the action of the elastic member (4).
7. An overspeeding autobrake stroller according to claim 2, characterized in that the friction deceleration device further comprises a compression spring (71) arranged on the side of the friction brake pad (6) remote from the ratchet wheel disc assembly (3), the compression spring (71) being used to press the friction brake pad (6) against the ratchet wheel disc assembly (3).
8. The overspeeding auto-braking stroller of claim 7, wherein the friction deceleration device further comprises an adjusting assembly for adjusting the compression amount of the compression spring (71), the adjusting assembly comprises a nut push block (73) and an adjusting bolt (74) in threaded connection with the nut push block (73), and one end of the compression spring (71) far away from the friction brake sheet (6) abuts against the nut push block (73).
9. The overspeeding auto-braking stroller of claim 8, wherein the friction deceleration device further comprises a housing (75), the compression spring (71), the nut pusher (73) and the adjusting bolt (74) are all disposed in the housing (75), and a visual window (751) for viewing the position of the nut pusher (73) and a scale mark (752) are disposed on the housing (75).
10. The baby stroller with over-speed automatic brake according to any one of claims 2 to 9, characterized in that the centrifugal blocks (5) are provided in two, the ratchet disc assembly (3) is formed with a first engaging groove (33) and a second engaging groove (34), the wheel (2) has a first circumferential direction and a second circumferential direction, and one of the centrifugal blocks (5) is engaged with the first engaging groove (33) when the wheel (2) rotates in the first circumferential direction; when the wheel (2) rotates in the second circumferential direction, the other centrifugal block (5) is clamped with the second clamping groove (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223385382.3U CN218750961U (en) | 2022-12-16 | 2022-12-16 | Baby stroller with automatic overspeed brake function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223385382.3U CN218750961U (en) | 2022-12-16 | 2022-12-16 | Baby stroller with automatic overspeed brake function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218750961U true CN218750961U (en) | 2023-03-28 |
Family
ID=85684939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223385382.3U Active CN218750961U (en) | 2022-12-16 | 2022-12-16 | Baby stroller with automatic overspeed brake function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218750961U (en) |
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2022
- 2022-12-16 CN CN202223385382.3U patent/CN218750961U/en active Active
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