CN211808836U - Rotary connecting rod braking type heavy-duty universal caster - Google Patents
Rotary connecting rod braking type heavy-duty universal caster Download PDFInfo
- Publication number
- CN211808836U CN211808836U CN201922491597.5U CN201922491597U CN211808836U CN 211808836 U CN211808836 U CN 211808836U CN 201922491597 U CN201922491597 U CN 201922491597U CN 211808836 U CN211808836 U CN 211808836U
- Authority
- CN
- China
- Prior art keywords
- locking
- shaft
- connecting rod
- bearing seat
- groove
- Prior art date
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a rotatory connecting rod braking formula heavy load universal castor, including the bearing seat, the support frame, locking rotary mechanism, the locking axle, the slider, link mechanism, the support frame passes through the bearing and is connected with the bearing seat, locking rotary mechanism sets up in bearing seat top, locking rotary mechanism is used for driving the locking epaxial up-and-down motion with the upper end cooperation of locking axle, the fixed spline fluted disc that is provided with of lower extreme of bearing seat, the fixed spline gear that is provided with of lower extreme of locking axle, the spline fluted disc realizes the locking of support frame for the bearing seat is rotatory with the spline gear cooperation, the locking axle is articulated through the one end of link mechanism with the slider, be provided with the locking tooth axle that has the locking tooth on the slider, the gyro wheel side is provided with the fluted disc, locking tooth realizes the locking of gyro wheel around the. The utility model discloses a rotatory connecting rod braking formula heavy load universal caster adopts connecting rod transmission rack locking formula structure, removes in a flexible way, convenient operation, and the mechanism is reasonable, and the load can reach more than 300 kg.
Description
Technical Field
The utility model relates to a truckle, in particular to universal castor that can nimble braking.
Background
The universal wheel is a movable caster wheel, and the structure of the universal wheel allows 360-degree horizontal rotation. The caster is a general term and comprises a movable caster and a fixed caster. The fixed caster has no rotating structure, can not rotate horizontally but can only rotate vertically. These two types of casters are commonly used in combination, for example, a cart has a structure with two fixed wheels at the front and two movable universal wheels at the rear, which are close to the pushing handrail.
At present, the heavy-load caster with brake applied to the field of physical therapy equipment has the load limit of about 160kg, and brings certain bottleneck to the application of large-scale medical equipment.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem that exists among the prior art, the utility model discloses a carry out optimal design to the structure of heavily loaded truckle, provide a rotatory connecting rod braking formula heavily carries universal castor.
The technical scheme of the utility model as follows:
a rotary connecting rod braking type heavy-duty universal caster comprises a bearing seat, a supporting frame, a locking rotary mechanism, a locking shaft, a sliding block and a connecting rod mechanism, wherein the supporting frame is connected with the bearing seat through a bearing, the locking rotary mechanism is arranged above the bearing seat, the locking rotary mechanism is matched with the upper end of the locking shaft and is used for driving the locking shaft to move up and down, a rotation-stopping fluted disc is fixedly arranged at the lower end of the bearing seat, rotation-stopping gear inserts are fixedly arranged at the lower end of the locking shaft, the rotation-stopping fluted disc is matched with the rotation-stopping gear inserts to lock the supporting frame relative to the bearing seat, the locking shaft is hinged with one end of the sliding block through the connecting rod mechanism, a locking fluted shaft with locking teeth is arranged at the other end of the sliding block, a wheel shaft is arranged on the supporting frame, a roller capable of rotating around the, the locking teeth and the fluted disc are matched to lock the idler wheel to rotate around the wheel shaft.
Furthermore, the link mechanism comprises a rotary locking shaft, a shifting rod and a connecting rod, wherein the lower end of the locking shaft is hinged to the upper end of the shifting rod through a waist-shaped groove, two ends of the rotary locking shaft are rotatably arranged on the support frame, the lower end of the shifting rod is fixedly connected with the rotary locking shaft, the rotary locking shaft is fixedly connected with the upper end of the connecting rod, and the lower end of the connecting rod is hinged to one end of the sliding block through the waist-shaped groove.
Furthermore, a spring groove is formed in the middle of the bearing seat, a spring is arranged in the spring groove, a locking shaft is sleeved in the spring groove, limiting convex edges are arranged on the locking shaft and the spring groove, and the spring is limited between the limiting convex edges.
Furthermore, the locking rotary mechanism comprises a locking rotary shaft, a vertical sleeve is arranged at the upper end of the bearing seat, the locking rotary shaft is rotatably arranged in the vertical sleeve, a locking groove and an unlocking groove are arranged on the side wall of the locking rotary shaft, and the matching surface of the locking groove and the locking shaft is higher than the matching surface of the unlocking groove and the locking shaft.
Furthermore, a limiting groove is formed in the locking rotating shaft, a limiting block is arranged in the vertical sleeve, and the limiting block and the limiting groove are matched to limit the rotating range of the locking rotating shaft.
Furthermore, a limiting groove is formed in the supporting frame, and the sliding block moves in the limiting groove.
The utility model has the advantages as follows:
the utility model discloses a rotatory connecting rod braking formula heavy load universal caster adopts connecting rod transmission rack locking formula structure, removes in a flexible way, convenient operation, and the mechanism is reasonable, and the load can reach more than 300 kg.
Drawings
Fig. 1 is a schematic structural view (front side) of the present invention;
FIG. 2 is a schematic structural view (reverse side) of the present invention;
FIG. 3 is a schematic structural view (front side) of the present invention with the support frame removed;
FIG. 4 is a schematic structural view (reverse side) of the present invention with the support frame removed;
FIG. 5 is a bottom view of the present invention;
fig. 6 is a top view structural diagram of the present invention;
FIG. 7 is a cross-sectional structural view taken along line A-A of FIG. 5;
fig. 8 is a sectional structural view taken along line B-B of fig. 6.
The labels in the figure are: 1. a vertical sleeve; 2. a load bearing seat; 3. rotating the locking shaft; 4. a roller; 5. a connecting rod; 6. a slider; 7. locking the gear shaft; 8. a first limit groove; 9. a wheel axle; 10. a support frame; 11. a rotation stopping fluted disc; 12. a locking shaft; 13. a first pin shaft; 14. a deflector rod; 15. a fluted disc; 16. gear shaping is carried out in a rotation stopping manner; 17. a first waist-shaped groove; 18. a second waist-shaped groove; 19. a second pin shaft; 20. a locking tooth; 21. locking the rotating shaft; 22. a locking groove; 23. a spring; 24. a bearing; 25. unlocking the groove; 26. a second limit groove; 27. and a limiting block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model relates to a structure of rotatory connecting rod braking formula heavy load universal castor is shown in fig. 1-8, including bearing seat 2, support frame 10, locking rotary mechanism, locking axle 12, slider 6, link mechanism. The support frame 10 is connected with the bearing seat 2 through a bearing 24, the locking rotating mechanism is arranged above the bearing seat 2, and the locking rotating mechanism is matched with the upper end of the locking shaft 12 and used for driving the locking shaft 12 to move up and down. The lower extreme of bearing seat 2 is fixed and is provided with spline fluted disc 11, the lower extreme of locking shaft 12 is fixed and is provided with spline gear shaping 16, the locking of support frame 10 for the rotation of bearing seat 2 is realized with the cooperation of spline fluted disc 11 and spline gear shaping 16. The locking shaft 12 is hinged to one end of the sliding block 6 through a connecting rod mechanism, the locking gear shaft 7 with locking teeth 20 is arranged at the other end of the sliding block 6, the wheel shaft 9 is arranged on the supporting frame 10, the roller 4 capable of rotating around the wheel shaft 9 is arranged on the wheel shaft 9, the fluted disc 15 is arranged on the side face of the roller 4 outside the wheel shaft 9, and the locking teeth 20 are matched with the fluted disc 15 to lock the rotation of the roller 4 around the wheel shaft 9.
The linkage mechanism comprises a rotating locking shaft 3, a shifting rod 14 and a connecting rod 5, wherein the lower end of the locking shaft 12 is hinged to the upper end of the shifting rod 14 through a first waist-shaped groove 17, two ends of the rotating locking shaft 3 are rotatably mounted on a support frame 10, the lower end of the shifting rod 14 is fixedly connected with the rotating locking shaft 3, the rotating locking shaft 3 is fixedly connected with the upper end of the connecting rod 5, and the lower end of the connecting rod 5 is hinged to one end of a sliding block 6 through a second waist-shaped groove 18.
As the preferred structure that locking axle 1 can be driven and up-and-down motion, the utility model discloses be provided with the spring groove at the middle part of bearing seat 2, be provided with spring 23 in the spring groove, the cover is equipped with locking axle 12 in the spring groove, and the outer edge of locking axle 12 upper end and the interior edge of spring groove lower extreme all are equipped with spacing protruding edge, spring 23 spacing in between the spacing protruding edge.
Locking rotary mechanism is provided with vertical cover 1 including locking rotation axis 21, the upper end of bearing seat 2, locking rotation axis 21 rotatably sets up in vertical cover 1, is provided with locking groove 22 and unlocking groove 25 on the lateral wall of locking rotation axis 21, and the fitting surface that locking groove 22 and locking axle 12 are higher than the fitting surface of unlocking groove 25 and locking axle 12. The structure is such that: when the locking rotating shaft 21 rotates until the locking groove 22 corresponds to the locking shaft 12, the locking shaft 12 can move upwards relatively, so that the rotation-stopping gear shaping 16 is inserted into the rotation-stopping gear disc 11, and the support frame 10 is locked relative to the bearing seat 2; when the locking rotating shaft 21 rotates until the unlocking groove 25 corresponds to the locking shaft 12, the locking shaft 12 can relatively move downwards, so that the rotation-stopping gear 16 is not inserted into the rotation-stopping toothed disc 11, and the support frame 10 can freely rotate relative to the load-bearing seat 2.
In order to further optimize the structure of the locking rotation mechanism, a second limiting groove 26 may be further disposed on the locking rotation shaft 21, a limiting block 27 may be disposed in the vertical sleeve 1, and the limiting block 27 cooperates with the second limiting groove 26 to limit the rotation range of the locking rotation shaft 21.
In order to better define the moving direction of the sliding block 7, a first limit groove 8 may be disposed on the supporting frame 10, and the sliding block 7 moves in the first limit groove 8, so that the moving track of the sliding block 7 is more stable.
The utility model discloses a working process does: the locking rotating shaft is rotated to switch locking and unlocking states, in the locking state, the locking shaft moves upwards under the action of a spring, so that the rotation-stopping gear shaping is inserted into a rotation-stopping fluted disc, the roller cannot rotate, and meanwhile, the locking shaft moves upwards to pull the shifting rod to swing upwards, so that the connecting rod is driven to swing by rotating the locking shaft, the nylon sliding block is driven to move inwards, the locking teeth on the nylon sliding block are meshed with the fluted disc on the roller, and the roller cannot axially rotate; when the locking mechanism is unlocked, the locking rotating shaft is rotated, and the locking shaft moves downwards, so that the rotation-stopping gear shaping teeth are separated from the rotation-stopping fluted disc, and meanwhile, the locking teeth are separated from the fluted disc on the roller, and the rolling and free steering motion of the roller is realized.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a rotatory connecting rod braking formula heavy load universal castor which characterized in that: comprises a bearing seat, a supporting frame, a locking rotating mechanism, a locking shaft, a sliding block and a connecting rod mechanism, wherein the supporting frame is connected with the bearing seat through a bearing, the locking rotating mechanism is arranged above the bearing seat, the locking rotating mechanism is matched with the upper end of the locking shaft and is used for driving the locking shaft to move up and down, the lower end of the bearing seat is fixedly provided with a rotation-stopping fluted disc, the lower end of the locking shaft is fixedly provided with rotation-stopping gear shaping, the rotation-stopping fluted disc is matched with the rotation-stopping gear shaping to realize the locking of the support frame relative to the rotation of the bearing seat, the locking shaft is hinged with one end of the sliding block through a connecting rod mechanism, the other end of the sliding block is provided with a locking tooth shaft with locking teeth, the wheel shaft is arranged on the support frame, the wheel shaft is provided with a roller capable of rotating around the wheel shaft, a fluted disc is arranged on the side face of the roller outside the wheel shaft, and the locking teeth and the fluted disc are matched to lock the roller to rotate around the wheel shaft.
2. A swivel link brake type heavy duty universal caster according to claim 1, wherein: the connecting rod mechanism comprises a rotary locking shaft, a shifting rod and a connecting rod, wherein the lower end of the locking shaft is hinged to the upper end of the shifting rod through a waist-shaped groove, two ends of the rotary locking shaft are rotatably arranged on the support frame, the lower end of the shifting rod is fixedly connected with the rotary locking shaft, the rotary locking shaft is fixedly connected with the upper end of the connecting rod, and the lower end of the connecting rod is hinged to one end of the sliding block through the waist-shaped groove.
3. A swivel link brake type heavy duty universal caster according to claim 1, wherein: the middle part of bearing seat is provided with the spring groove, be provided with the spring in the spring groove, the cover is equipped with the locking axle in the spring groove, locking axle and spring groove all are equipped with spacing protruding edge, the spring spacing in between the spacing protruding edge.
4. A swivel link brake type heavy duty universal caster according to claim 2, wherein: locking rotary mechanism is provided with vertical cover including the locking rotation axis, bearing seat's upper end, the locking rotation axis rotatably sets up in vertical cover, be provided with locking groove and unlocking groove on the lateral wall of locking rotation axis, the cooperation face of locking groove and locking axle is higher than the cooperation face of unlocking groove and locking axle.
5. The swivel link brake heavy duty castor according to claim 4, wherein: the locking rotating shaft is provided with a limiting groove, a limiting block is arranged in the vertical sleeve, and the limiting block is matched with the limiting groove to limit the rotating range of the locking rotating shaft.
6. A swivel link brake type heavy duty universal caster according to claim 1, wherein: the support frame is provided with a limiting groove, and the sliding block moves in the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491597.5U CN211808836U (en) | 2019-12-31 | 2019-12-31 | Rotary connecting rod braking type heavy-duty universal caster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491597.5U CN211808836U (en) | 2019-12-31 | 2019-12-31 | Rotary connecting rod braking type heavy-duty universal caster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211808836U true CN211808836U (en) | 2020-10-30 |
Family
ID=73041172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922491597.5U Active CN211808836U (en) | 2019-12-31 | 2019-12-31 | Rotary connecting rod braking type heavy-duty universal caster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211808836U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431871A (en) * | 2020-11-19 | 2021-03-02 | 中铁电气化局集团有限公司 | Unpowered mobile device braking device |
| CN113372149A (en) * | 2021-07-05 | 2021-09-10 | 博创科为(北京)科技有限公司 | Self-propelled film rolling and laminating machine |
| CN113877307A (en) * | 2021-11-19 | 2022-01-04 | 常州瑞曦生物科技有限公司 | Separation post device with upset locking function |
| CN114287720A (en) * | 2021-12-31 | 2022-04-08 | 苏州德锐朗智能科技有限公司 | Roller device with adjustable wheel axle position |
-
2019
- 2019-12-31 CN CN201922491597.5U patent/CN211808836U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431871A (en) * | 2020-11-19 | 2021-03-02 | 中铁电气化局集团有限公司 | Unpowered mobile device braking device |
| CN113372149A (en) * | 2021-07-05 | 2021-09-10 | 博创科为(北京)科技有限公司 | Self-propelled film rolling and laminating machine |
| CN113877307A (en) * | 2021-11-19 | 2022-01-04 | 常州瑞曦生物科技有限公司 | Separation post device with upset locking function |
| CN114287720A (en) * | 2021-12-31 | 2022-04-08 | 苏州德锐朗智能科技有限公司 | Roller device with adjustable wheel axle position |
| CN114287720B (en) * | 2021-12-31 | 2024-02-20 | 苏州德锐朗智能科技有限公司 | Wheel axle position adjustable roller device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211808836U (en) | Rotary connecting rod braking type heavy-duty universal caster | |
| CN1124952C (en) | Steerable load-carrying assemblies | |
| EP0812279B1 (en) | Steerable trolley | |
| CN208411312U (en) | A kind of vibration damping universal wheel | |
| CN108706036B (en) | Central control braking system and movable type medical equipment of cart type | |
| CN209008609U (en) | Dumper and its steering mechanism | |
| CN209833244U (en) | Central control wheel | |
| CN212738170U (en) | Material transporting cart for constructional engineering | |
| CN201376461Y (en) | Braking universal caster | |
| CN2461792Y (en) | Folding leg wheel | |
| CN210631665U (en) | Rear axle structure of amusement facility trolley | |
| CN209332529U (en) | One kind has no abnormal sound fastening type wheelchair rear wheel assembly | |
| CN215361553U (en) | Articulated excavator frame | |
| CN218979512U (en) | Electric wheelchair | |
| CN212555717U (en) | Aluminum alloy casting for automobile chassis control arm | |
| CN2375538Y (en) | Perambulator | |
| CN113415104B (en) | Multi-link universal wheel brake mechanism | |
| CN211001509U (en) | Active braking system of cleaning vehicle | |
| CN218319020U (en) | Crawler-type load gyro wheel dolly | |
| CN220147399U (en) | Portable handcart capable of crossing steps | |
| CN212289918U (en) | Folding bicycle with rear wheels braked simultaneously | |
| CN215606958U (en) | Stretcher vehicle for ambulance | |
| CN210581431U (en) | Case and bag pull rod with turn to function | |
| CN213307950U (en) | Electric wheel draw-bar box | |
| CN217347567U (en) | Children car seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |