CN221272421U - Central control brake castor - Google Patents
Central control brake castor Download PDFInfo
- Publication number
- CN221272421U CN221272421U CN202323520205.6U CN202323520205U CN221272421U CN 221272421 U CN221272421 U CN 221272421U CN 202323520205 U CN202323520205 U CN 202323520205U CN 221272421 U CN221272421 U CN 221272421U
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- Prior art keywords
- brake
- bracket
- control
- wheel body
- brake block
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- 235000004443 Ricinus communis Nutrition 0.000 title abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a central control brake castor, which comprises a central shaft sleeve, wherein the outer side of the central shaft sleeve is sequentially connected with a fixed bracket and a rotating bracket in a rotating way from top to bottom, a plurality of balls are arranged between the fixed bracket and the rotating bracket, the lower part of the rotating bracket is provided with a wheel body, the middle part of the central shaft sleeve is longitudinally and slidably connected with a brake ejector rod, a control piece is arranged above the brake ejector rod and can control the brake ejector rod to longitudinally slide, the lower part of the brake ejector rod is provided with a brake block capable of braking the wheel body, and the brake block is annular; compared with the prior art, when the wheel body turns, the brake block cannot rotate along with the wheel body, so that the braking positions of the brake block corresponding to each angle of the wheel body turning are different, and the design avoids that the brake block only wears one position for a long time, so that the service life of the brake block is longer, and a good braking effect can be maintained for a long time.
Description
Technical Field
The utility model relates to the technical field of casters, in particular to a central control brake caster.
Background
The central control castor is mainly arranged on medical equipment or medical beds, so that the braking effect and the service life of the central control castor are strictly required.
In the prior art, a central control brake castor for braking is usually utilized to make contact with a wheel body by a brake block, and the position of the brake block which makes contact with the wheel body is fixed when braking is carried out every time. Under the condition of long-term use, the position of the brake block for braking has certain abrasion, the wheel body cannot be effectively braked in the later period, and the service life of the central control brake castor is influenced. Therefore, there is a need for an improvement over existing center-control brake casters.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model provides the central control brake castor with good braking effect and long service life.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a well accuse brake truckle, includes well axle sleeve, the outside of well axle sleeve is rotated in proper order from top to bottom and is connected with fixed bolster and runing rest, be provided with a plurality of balls between fixed bolster and the runing rest, the lower part of runing rest is provided with the wheel body, the middle part longitudinal sliding connection of well axle sleeve has the brake ejector pin, the top of brake ejector pin is provided with the control, the control steerable the brake ejector pin vertically slides, the lower part of brake ejector pin is provided with can be right the brake block that the wheel body brakes, the brake block is annular.
Further, the control piece is including fixed connection in the fixing base of fixed bolster top, the inside of fixing base is provided with rotatable brake ratchet, the lower part of brake ratchet is inconsistent with the top of brake ejector pin, the brake ejector pin is provided with the elastic component, the elastic component makes the brake ejector pin keeps having to the gliding motion trend of brake ratchet.
Further, the brake block is in an inclined ring shape, and the inclined surface of the brake block is used for propping against the wheel body to brake.
Further, the brake block is connected with the brake ejector rod through a locking bolt.
Further, the brake ejector rod and the fixed support can only longitudinally slide relatively and cannot transversely rotate, the brake ejector rod is further provided with an orientation ring, and the rotating support is provided with a limiting part corresponding to the orientation ring.
Further, a protection ring is further arranged between the fixed support and the rotating support, and the protection ring is used for limiting the positions of the balls and blocking the periphery of a gap between the fixed support and the rotating support.
Further, the outside rotation of well axle sleeve is connected with the bearing support, the bearing support set up in the below of rotating the support, be provided with a plurality of balls between rotating support and the bearing support, just do not touch mutually between rotating support and the well axle sleeve.
The beneficial effects of the utility model are as follows: compared with the prior art, when the wheel body turns, the brake block cannot rotate along with the wheel body, so that the braking position of the brake block corresponding to each angle of the wheel body turning is different, and the design avoids that the brake block only wears one position for a long time, so that the service life of the brake block is longer, and a good braking effect can be maintained for a long time; the detachable brake block is arranged, so that the brake block can be replaced in the later stage; the utility model can perform directional braking by arranging the directional ring; the utility model can keep smooth rotation for a long time by arranging the protective ring.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic view showing an exploded structure of the wheel body removed according to the present utility model.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1 and 2, a central control brake caster comprises a central shaft sleeve 1. The outer side of the middle shaft sleeve 1 is sequentially connected with a fixed support 2 and a rotating support 3 in a rotating manner from top to bottom. A plurality of balls are arranged between the fixed bracket 2 and the rotating bracket 3. The lower part of the rotating bracket 3 is provided with a wheel body 4. The middle part of the middle shaft sleeve 1 is longitudinally and slidably connected with a brake ejector rod 15. A control piece 6 is arranged above the brake ejector rod 15, and the control piece 6 can control the brake ejector rod 15 to longitudinally slide. The lower part of the brake mandril 15 is provided with a brake block 5 which can brake the wheel body 4, and the brake block 5 is annular.
In this embodiment, by controlling the control member 6, the brake jack 15 is made to slide longitudinally, so as to control whether the brake block 5 is in contact with the wheel body 4, so as to perform braking or release braking.
Compared with the prior art, when the wheel body 4 of the embodiment turns, the brake block 5 cannot rotate along with the wheel body 4. Therefore, the braking positions of the corresponding braking blocks 5 of each angle of the steering of the wheel body 4 are different, and the design avoids that the braking blocks 5 only wear one position for a long time, so that the service life of the braking blocks 5 is longer, and good braking effect can be maintained for a long time.
Further, the control member 6 includes a fixing seat 7 fixedly connected to the upper portion of the fixing bracket 2. The inside of the fixed seat 7 is provided with a rotatable brake ratchet 8. In this embodiment, the brake ratchet 8 is a cam having two symmetrical protrusions 9. In this design, the brake ratchet wheel 8 can rotate clockwise or anticlockwise to perform braking operation, and the direction does not need to be distinguished when the embodiment is installed. The lower part of the brake ratchet wheel 8 is abutted against the top of the brake ejector rod 15. The brake jack 15 is provided with an elastic member 10, and the elastic member 10 keeps the brake jack 15 having a movement tendency to slide toward the brake ratchet 8. In this embodiment, the elastic member 10 is a compression spring, and the compression spring is sleeved between the brake ejector rod 15 and the middle shaft sleeve 1. The design is simple and reliable in structure, and the resetting effect of the brake ejector rod 15 is better.
Further, the brake block 5 is in an annular inclined surface, and the inclined surface of the brake block 5 is used for being abutted against the wheel body 4 to brake. By the design, the contact area between the brake block 5 and the wheel body 4 is increased, so that the braking effect of the embodiment is better.
Further, the brake block 5 is connected with a brake ejector rod 15 through a locking bolt 11. The design is simple in structure, and the brake block 5 is convenient to replace in the later period.
Further, the brake ejector rod 15 and the fixed bracket 2 can only slide longitudinally relatively and cannot rotate transversely. The brake ejector rod 15 is also provided with an orientation ring 12, and the periphery of the orientation ring 12 is provided with gear teeth. The rotating bracket 3 is provided with a limit part corresponding to the steering directional ring 12. The brake push rod 15 slides up and down, so as to control the directional ring 12 to slide up and down, so that gear teeth of the directional ring 12 are meshed with or separated from the limiting part, and steering of the rotating bracket 3 is limited, and the embodiment can directionally brake.
Further, a guard ring 13 is further disposed between the fixed bracket 2 and the rotating bracket 3, and the guard ring 13 is used for limiting the position of the balls and blocking the periphery of the gap between the fixed bracket 2 and the rotating bracket 3. The guard ring 13 can prevent/reduce foreign matters such as dust and mud stone from entering between the fixed bracket 2 and the rotating bracket 3, so that the embodiment keeps smooth rotation for a long time, and the service life is longer.
Further, a supporting bracket 14 is rotatably connected to the outer side of the middle shaft sleeve 1. The supporting bracket 14 is arranged below the rotating bracket 3. A plurality of balls are arranged between the rotating support 3 and the bearing support 14, and the rotating support 3 and the middle shaft sleeve 1 are not touched mutually. By the design, the rotating resistance of the rotating bracket 3 is smaller, so that the embodiment rotates more smoothly.
The above embodiments do not limit the protection scope of the invention, and those skilled in the art can make equivalent modifications and variations without departing from the whole inventive concept, and they still fall within the scope of the invention.
Claims (7)
1. The utility model provides a well accuse brake truckle, its characterized in that, including well axle sleeve, the outside of well axle sleeve is rotated in proper order from top to bottom and is connected with fixed bolster and runing rest, be provided with a plurality of balls between fixed bolster and the runing rest, the lower part of runing rest is provided with the wheel body, the middle part longitudinal sliding connection of well axle sleeve has the brake ejector pin, the top of brake ejector pin is provided with the control, the control can control the brake ejector pin longitudinal sliding, the lower part of brake ejector pin is provided with can be right the brake block that the wheel body brakes, the brake block is annular.
2. The center-control brake caster according to claim 1, wherein the control member comprises a fixing seat fixedly connected to the upper portion of the fixing bracket, a rotatable brake ratchet is arranged in the fixing seat, the lower portion of the brake ratchet is abutted against the top of the brake ejector rod, and the brake ejector rod is provided with an elastic member, and the elastic member enables the brake ejector rod to keep a movement tendency of sliding towards the brake ratchet.
3. The center-control brake caster of claim 1, wherein said brake block is in the shape of a bevel ring, and wherein the bevel of said brake block is adapted to contact the wheel body for braking.
4. The center-control brake caster of claim 1, wherein said brake block is connected to a brake jack by a locking bolt.
5. The center-control brake caster according to claim 1, wherein the brake jack and the fixed bracket can only slide longitudinally relative to each other and cannot rotate laterally, the brake jack is further provided with an orientation ring, and the rotating bracket is provided with a limit portion corresponding to the orientation ring.
6. The center-control brake caster of claim 1, wherein a guard ring is further provided between said fixed bracket and said swivel bracket, said guard ring being adapted to limit the position of the ball and to block the periphery of the gap between said fixed bracket and said swivel bracket.
7. The center control brake caster according to claim 1, wherein a bearing bracket is rotatably connected to the outer side of the center bushing, the bearing bracket is disposed below the rotating bracket, a plurality of balls are disposed between the rotating bracket and the bearing bracket, and the rotating bracket and the center bushing are not touched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323520205.6U CN221272421U (en) | 2023-12-22 | 2023-12-22 | Central control brake castor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323520205.6U CN221272421U (en) | 2023-12-22 | 2023-12-22 | Central control brake castor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221272421U true CN221272421U (en) | 2024-07-05 |
Family
ID=91708076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323520205.6U Active CN221272421U (en) | 2023-12-22 | 2023-12-22 | Central control brake castor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221272421U (en) |
-
2023
- 2023-12-22 CN CN202323520205.6U patent/CN221272421U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |