CN220220860U - Manual control constant-braking universal wheel - Google Patents
Manual control constant-braking universal wheel Download PDFInfo
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- CN220220860U CN220220860U CN202321820119.4U CN202321820119U CN220220860U CN 220220860 U CN220220860 U CN 220220860U CN 202321820119 U CN202321820119 U CN 202321820119U CN 220220860 U CN220220860 U CN 220220860U
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- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 26
- 230000008569 process Effects 0.000 abstract description 7
- 230000001133 acceleration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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Abstract
The utility model provides a manual control constant brake universal wheel, and relates to the technical field of universal wheels. A manual control constant brake universal wheel comprises a mounting box, a wheel frame and wheels rotatably arranged on the wheel frame; the installation box is rotationally provided with a rotating assembly, and the wheel frame is arranged on the rotating assembly; the rotating assembly is provided with a mounting rod in a sliding manner along the vertical direction, and the mounting rod is provided with a brake shoe matched with the wheel; the mounting box is provided with a driving assembly for driving the mounting rod to slide along the vertical direction. By adopting the trolley, the automatic braking device is convenient to operate when the trolley is not used, and can be used for decelerating in the process of pushing the trolley to descend, so that a worker does not need to pull the handle of the trolley to make the trolley not slide downwards in an accelerating way, and the labor intensity of the worker is reduced.
Description
Technical Field
The utility model relates to the technical field of universal wheels, in particular to a manual control constant brake universal wheel.
Background
The trolley is a manually pushed and pulled carrying vehicle, and the trolley is still used as an indispensable carrying tool although the trolley material carrying technology is continuously developed. The handcart has wide application in production and life because of low cost, simple maintenance and light weight, and can work in places where motor vehicles are inconvenient to use and is very convenient for carrying lighter articles in short distance.
The trolley has one wheel, two wheels, three wheels and four wheels, wherein four wheels trolley is used in most cases. The traditional four-wheel hand cart mainly runs by installing universal wheels at the bottom of the cart, so that the universal wheels with brakes are mostly adopted to be installed at the bottom of the cart for realizing the brakes. When the conventional universal wheel with the brake is braked, a user is required to step on a brake device of the universal wheel by feet, and the universal wheel is abutted with the wheels through the brake device to realize the brake. Before running, the brake device is pushed upwards by the foot to separate the brake device from the wheel, and the vehicle can be pushed to move continuously, so that the operation of braking and unlocking the brake is troublesome. And during loading and parking, the worker may slide to generate collision because the worker does not tread the brake device.
In the process of pushing the handcart to run, if the cargoes loaded by the handcart are heavier, the speed of the vehicle is difficult to control when the handcart runs on a downhill road section, and the handcart can not slide downwards in an accelerating way only by the force of a worker pulling the handle of the handcart, so that the physical strength of the worker is consumed.
Disclosure of Invention
The utility model aims to provide a manual control constant brake universal wheel, which can solve the defects of the prior art, is capable of automatically braking when a handcart is not used, is convenient to operate, can reduce the speed by braking in the process of pushing the handcart to descend, does not need a worker to pull a handle of the handcart forcefully to enable the handcart to slide downwards without acceleration, and reduces the labor intensity of the worker.
The utility model adopts the technical scheme that:
the embodiment of the application provides a manual control constant brake universal wheel, which comprises a mounting box, a wheel carrier and wheels rotatably arranged on the wheel carrier; the installation box is rotationally provided with a rotating assembly, and the wheel frame is arranged on the rotating assembly; the rotating assembly is provided with a mounting rod in a sliding manner along the vertical direction, and the mounting rod is provided with a brake shoe matched with the wheel; the mounting box is provided with a driving assembly for driving the mounting rod to slide along the vertical direction.
Further, in some embodiments of the present utility model, the driving assembly includes a locking bolt provided on the mounting box and a rotating sleeve rotatably sleeved on the locking bolt, and the locking bolt is fixedly provided with a mounting block; the rotary sleeve is fixedly provided with a pressing plate, and is sleeved with a torsion spring; one end of the torsion spring is connected with the mounting block, and the other end of the torsion spring is connected with the pressing plate and applies downward elasticity to the pressing plate; the pressing plate applies downward elastic force to the mounting rod.
Further, in some embodiments of the present utility model, the foregoing further includes a platen, the platen is provided with a fixing plate, the fixing plate is provided with a mounting hole, and the platen passes through the mounting hole;
the installation pole top is equipped with the roof, and the roof is located the pressure disk below.
Further, in some embodiments of the present utility model, a limiting groove is formed at the bottom of the pressure plate, a top plate is embedded in the limiting groove, and a rubber gasket is disposed between the top plate and the bottom of the pressure plate.
Further, in some embodiments of the present utility model, the installation box is provided with two guide rods at intervals, and the pressure plate is slidably sleeved on the guide rods along the vertical direction.
Further, in some embodiments of the present utility model, the rotating sleeve is fixedly provided with a gear, the mounting box is provided with a mounting seat, the longitudinal section of the mounting seat is U-shaped, the mounting seat is slidably provided with a rack, the rack is meshed with the gear, and the rack is provided with a connecting hole.
Further, in some embodiments of the present utility model, a mounting through hole is formed on one side of the mounting box, and a locking bolt passes through the mounting through hole and is in threaded connection with a locking nut; the locking bolt is fixedly provided with an adjusting turntable, and a plurality of adjusting clamping teeth are uniformly arranged on the adjusting turntable at intervals along the periphery of the adjusting turntable; a plurality of adjusting clamping grooves are uniformly arranged at intervals along the installation through holes on one side of the installation box, and the adjusting clamping teeth are embedded into the adjusting clamping grooves.
Further, in some embodiments of the present utility model, the rotating assembly includes a rotating column that rotates through the mounting box, an upper limit plate provided at the top of the rotating column, and a lower limit plate provided at the bottom of the rotating column, and the mounting box is clamped between the upper limit plate and the lower limit plate; a plurality of balls are arranged between the upper limit disc and the mounting box and between the lower limit disc and the mounting box;
the rotating column is provided with a sliding hole with a polygonal cross section, and the cross section of the mounting rod is polygonal and slides through the sliding hole.
Further, in some embodiments of the present utility model, the rotating post is provided with a receiving groove, and a return spring is disposed in the receiving groove; the installation pole is equipped with the installation piece, and installation piece bottom is connected with reset spring top.
Further, in some embodiments of the present utility model, the bottom of the mounting rod is provided with an adjusting fixing plate, and the mounting rod further includes an adjusting bolt located below the rotating assembly, and the adjusting bolt passes through the adjusting fixing plate; the adjusting bolt is in threaded connection with two adjusting nuts, and the adjusting fixing plate is located between the two adjusting nuts.
Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:
when the handcart is not used, the automatic brake is convenient to operate, and the handcart can be decelerated through the brake in the process of pushing the handcart to descend, so that a worker does not need to pull the handle of the handcart forcefully to enable the handcart to slide downwards without acceleration, and the labor intensity of the worker is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a structure of a universal wheel according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of the inside of a universal wheel according to an embodiment of the present utility model;
FIG. 3 is a partial cross-sectional view of the interior of a universal wheel provided in an embodiment of the present utility model;
FIG. 4 is a schematic view of the mounting rod and brake shoe positions provided in an embodiment of the present utility model;
fig. 5 is a schematic structural view of the bottom of the mounting box according to the embodiment of the present utility model;
FIG. 6 is a schematic diagram of a driving assembly according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of an upper limiting disc according to an embodiment of the present utility model;
FIG. 8 is a schematic view of a rack position according to an embodiment of the present utility model;
fig. 9 is a schematic structural diagram of an adjusting slot and a mounting through hole according to an embodiment of the present utility model.
Icon: 1-installing a box; 2-wheel frames; 3-wheels; 4-mounting a rod; 5-a brake shoe; 6-rotating the sleeve; 7-pressing plates; 8-torsion springs; 9-pressing plates; 10-fixing plates; 11-mounting holes; 12-top plate; 13-a return spring; 14-limiting grooves; 15-a guide rod; 16-rubber gaskets; 17-locking bolts; 18-gear; 19-a mounting base; 20-rack; 21-connecting holes; 22-adjusting bolts; 23-adjusting the nut; 24-locking nut; 25-an upper limit plate; 26-a lower limit plate; 27-balls; 28-rotating the column; 29-a receiving groove; 30-mounting a piece; 31-adjusting a turntable; 32-adjusting the latch; 33-an adjustment clamping groove; 34-mounting through holes; 35-mounting blocks; 36-slide hole; 37-adjusting the fixing plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Examples
Referring to fig. 1-9, the present embodiment provides a manual control constant brake universal wheel, which includes a mounting box 1, a wheel frame 2, and wheels 3 rotatably disposed on the wheel frame 2; the mounting box 1 is rotationally provided with a rotating assembly, and the wheel frame 2 is arranged on the rotating assembly; the rotating assembly is provided with a mounting rod 4 in a sliding manner along the vertical direction, the mounting rod 4 is provided with a brake shoe 5 matched with the wheel 3, and the brake shoe 5 can be a rubber sheet or the like; the mounting box 1 is provided with a drive assembly for driving the mounting bar 4 to slide in a vertical direction. The mounting box 1 of this embodiment can be cube shape, and its inside cavity, parts such as drive assembly can be placed in mounting box 1, and mounting box 1 can set up a plurality of through-holes, is convenient for pass the through-hole with mounting box 1 and be fixed in the handcart bottom through the bolt and realize the installation of universal wheel.
As shown in fig. 2 and 6, the driving assembly comprises a locking bolt 17 arranged on the mounting box 1 and a rotary sleeve 6 rotatably sleeved on the locking bolt 17, and the locking bolt 17 is fixedly provided with a mounting block 35; the rotary sleeve 6 is fixedly provided with a pressing plate 7, and the rotary sleeve 6 is sleeved with a torsion spring 8; one end of the torsion spring 8 is connected with the mounting block 35, and the other end of the torsion spring 8 is connected with the pressing plate 7 and applies downward elasticity to the pressing plate 7; the pressing plate 7 applies downward elastic force to the mounting rod 4.
The device also comprises a pressure plate 9, wherein the pressure plate 9 is provided with a fixed plate 10, the fixed plate 10 is provided with a mounting hole 11, and the pressure plate 7 passes through the mounting hole 11; the top of the mounting rod 4 is provided with a top plate 12, and the top plate 12 is arranged below the pressure plate 9. The bottom of the pressure plate 9 is provided with a limit groove 14, the top plate 12 is embedded into the limit groove 14, and a rubber gasket 16 is arranged between the top plate 12 and the bottom of the pressure plate 9. The rubber gasket 16 can buffer the top plate 12 and the pressure plate 9, and the top plate 12 is embedded into the limit groove 14, so that the top plate 12 can rotate relative to the pressure plate 9 in the limit groove 14.
In some embodiments of the present utility model, as shown in fig. 2, the installation box 1 is provided with two guide rods 15 at intervals, and the pressure plate 9 is slidably sleeved on the guide rods 15 along the vertical direction. When the pressure plate 9 moves in the vertical direction, the pressure plate 9 can slide along the guide rod 15, so that the stability and accuracy of sliding of the pressure plate 9 are improved.
As shown in fig. 2 and 6, in some embodiments of the present utility model, the rotating sleeve 6 is fixedly provided with a gear 18, the gear 18 is a sector-shaped incomplete gear, the mounting box 1 is provided with a mounting seat 19, the longitudinal section of the mounting seat 19 is U-shaped, the mounting seat 19 is slidably provided with a rack 20, the rack 20 is meshed with the gear 18, and the rack 20 is provided with a connecting hole 21. By arranging the rack 20, when the rack 20 is pulled to slide along the mounting seat 19, the gear 18 can be driven to rotate by the rack 20, and then the rotary sleeve 6 and the pressing plate 7 are driven to rotate by the gear 18.
As shown in fig. 2, 3, 5 and 7, the rotating assembly comprises a rotating column 28 rotating through the mounting box 1, an upper limit disc 25 arranged at the top of the rotating column 28 and a lower limit disc 26 arranged at the bottom of the rotating column 28, and the mounting box 1 is clamped between the upper limit disc 25 and the lower limit disc 26; a plurality of balls 27 are arranged between the upper limit disc 25 and the mounting box 1 and between the lower limit disc 26 and the mounting box 1; the upper limit plate 25, the lower limit plate 26 and the rotating column 28 can rotate along the installation box 1 together, and the balls 27 can reduce friction force generated during rotation and improve rotating smoothness. The mounting box 1 is clamped between the upper limit plate 25 and the lower limit plate 26, so that the rotary component can be prevented from falling off the mounting box 1.
The rotation post 28 is provided with a slide hole 36 having a polygonal cross section, and the mounting rod 4 has a polygonal cross section and slides through the slide hole 36. The mounting rod 4 of this embodiment is L-shaped, the cross section of the mounting rod 4 and the cross section of the slide hole 36 are rectangular, the mounting rod 4 includes a vertical section and a horizontal section, the vertical section slides through the slide hole 36, and since the cross section of the vertical section is polygonal, the mounting rod 4 can rotate together with the rotating column 28 and the wheel carrier 2 during the rotation of the rotating column 28, the wheel carrier 2, so that the wheel 3, the mounting rod 4 and the brake shoe 5 remain relatively stationary. The brake shoe 5 of this embodiment is located the horizontal segment, and brake shoe 5 is located the wheel 3 top, and brake shoe 5 and wheel 3 butt realize the brake under normal condition.
The rotary column 28 is provided with a containing groove 29, and a return spring 13 is arranged in the containing groove 29; the mounting rod 4 is provided with a mounting plate 30, and the bottom of the mounting plate 30 is connected with the top of the return spring 13. The return spring 13 is used for applying upward elastic force to the mounting plate 30 and the mounting rod 4, so as to facilitate pushing the mounting rod 4 and the brake shoe 5 to move upwards for return.
Working principle:
in actual use, a brake handle can be arranged on the handle of the handcart, the brake handle is connected with a brake cable, the brake cable penetrates through the connecting hole 21 of the rack 20, and one end, far away from the brake handle, of the brake cable is connected with the rack 20.
When the handcart is not used or the handcart is required to be stopped in the using process, as shown in fig. 1 and 2, a brake handle is released at the moment, under the torsion action of the torsion spring 8, the torsion spring 8 applies downward torsion force to the pressing plate 7, at the moment, the rotating sleeve 6 can rotate along the locking bolt 17, meanwhile, the pressing plate 7 rotates downwards along with the rotating sleeve 6, and as the pressing plate 7 passes through the mounting hole 11, the fixing plate 10 and the pressing plate 9 move downwards under the pressing of the pressing plate 7, the pressing plate 9 presses the top plate 12 to enable the top plate 12 and the mounting rod 4 to move downwards together, and therefore the mounting rod 4 can move vertically along the wheel carrier 2 to enable the brake shoe 5 to move downwards and abut against the wheel 3 to realize braking. At this time, the mounting piece 30 on the mounting lever 4 presses the return spring 13, and the return spring 13 compresses and accumulates elastic potential energy.
So when not using the handcart or need stop the handcart in the use, the brake shoe 5 can realize automatic brake with wheel 3 butt under the condition of not operating the brake handle, compares in the tradition and need step on the brake equipment of universal wheel respectively with the foot and realizes braking more convenient, easy operation.
When the handcart is needed to be used, a worker can hold the handcart handle at the same time, and pull the brake cable to move through the brake handle, as shown in fig. 2, at the moment, the brake cable pulls the rack 20 to move leftwards, and the rack 20 drives the gear 18 to rotate clockwise; because gear 18 is fixed in rotatory sleeve 6, consequently gear 18 drives rotatory sleeve 6 clockwise rotation, rotatory sleeve 6 drives clamp plate 7 and can upwards rotate, clamp plate 7 drives fixed plate 10 and pressure disk 9 and upwards moves, at this moment under the elasticity effect of reset spring 13, reset spring 13 promotes mounting plate 30 and mounting rod 4 and upwards moves together, mounting rod 4 drives brake shoe 5 and upwards moves and separate with wheel 3 top, lost the restriction of brake shoe 5 at this moment, wheel 3 can freely rotate, the staff of being convenient for promotes the handcart and removes. Therefore, before the handcart runs, the driver only needs to hold the brake handle when holding the handcart handle, and compared with the traditional method of using the feet to push the brake device upwards, the brake device is more convenient to separate from the wheels 3.
In the process of pushing the handcart to run, if the handcart runs on a downhill section, a little brake handle can be slightly loosened, at the moment, the brake shoe 5 can slightly move downwards and be abutted with the wheel 3 to improve the friction force, the friction force can be adjusted according to the degree of loosening of the brake handle, so that the handcart can be decelerated through braking in the process of pushing the handcart to run downhill, a worker is not required to pull the handle of the handcart to enable the handcart to slide downwards without acceleration, and the labor intensity of the worker is reduced.
As shown in fig. 1 to 9, in some embodiments of the present utility model, a mounting through hole 34 is formed at one side of the mounting case 1, and a locking bolt 17 is inserted through the mounting through hole 34 and is screwed with a locking nut 24; the lock bolt 17 can thus be fastened to the mounting box 1 by screwing the lock nut 24 and the lock bolt 17.
The locking bolt 17 is fixedly provided with an adjusting turntable 31, and the adjusting turntable 31 is uniformly provided with a plurality of adjusting latches 32 at intervals along the periphery thereof; a plurality of adjusting clamping grooves 33 are uniformly arranged at intervals along the mounting through holes 34 on one side of the mounting box 1, and the adjusting clamping teeth 32 are embedded into the adjusting clamping grooves 33. Because torsion of the torsion spring 8 gradually drops after long-time use, the torsion plate 7 is convenient to adjust the torsion applied by the torsion spring 8 through the adjusting turntable 31 by arranging the adjusting turntable 31. The adjusting latches 32 of this embodiment can be provided with eight, so that the rotation angle between every two adjacent adjusting latches 32 is 45 °, when adjusting torsion, the lock nut 24 can be unscrewed, then the lock bolt 17 is pulled outwards to make the lock bolt 17 drive the adjusting turntable 31 to move outwards until the adjusting latches 32 move out of the adjusting slots 33, at this time, the lock bolt 17 can be rotated, as shown in fig. 2, the rotation angle can be determined according to the size of the torsion required to be adjusted, such as 45 ° and 90 ° anticlockwise, when the lock bolt 17 is rotated anticlockwise to adjust 45 °, at this time, the adjusting turntable 31 and the mounting block 35 are all rotated anticlockwise by 45 °, so that the mounting block 35 can drive one end of the torsion spring 8 to rotate anticlockwise by 45 °, at this time, the torsion spring 8 can be further screwed, and the torsion size of the pressure plate 7 is improved. Simultaneously, the adjusting latches 32 rotate 45 degrees, each 45 degrees still faces each adjusting clamping groove 33, then the locking bolt 17 is pushed inwards to enable the locking bolt 17 to drive the adjusting turntable 31 to move inwards until each adjusting latch 32 moves to be embedded into each adjusting clamping groove 33, and the locking nut 24 is screwed, so that the torsion of the torsion spring 8 is convenient to adjust, and the operation is convenient.
As shown in fig. 4 and 5, in some embodiments of the present utility model, the bottom of the mounting rod 4 is provided with an adjusting and fixing plate 37, and the adjusting bolt 22 is located below the rotating assembly, and the adjusting bolt 22 passes through the adjusting and fixing plate 37; the adjusting bolt 22 is screwed with two adjusting nuts 23, and the adjusting fixing plate 37 is located between the two adjusting nuts 23. So can rotate adjusting bolt 22 along adjusting nut 23 in order to adjust adjusting bolt 22 top for the interval of turning post 28, be convenient for carry out spacing to the distance that installation pole 4 upwards slided through adjusting bolt 22, prevented installation pole 4 upwards gliding distance too big. The position of the adjusting bolt 22 is adjusted so that the distance between the top of the adjusting bolt 22 and the bottom of the rotating column 28 is 5mm, after the mounting rod 4 slides upwards by 5mm, the top of the adjusting bolt 22 and the bottom of the rotating column 28 are mutually abutted, and at this time, the mounting rod 4 cannot slide upwards continuously under the elasticity of the return spring 13.
The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model, and it will be apparent to those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiment, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A manual control constant brake universal wheel comprises a mounting box, a wheel frame and wheels rotatably arranged on the wheel frame; the method is characterized in that: the installation box is rotationally provided with a rotating assembly, and the wheel carrier is arranged on the rotating assembly; the rotating assembly is provided with a mounting rod in a sliding manner along the vertical direction, and the mounting rod is provided with a brake shoe matched with the wheel; the mounting box is provided with a driving component for driving the mounting rod to slide along the vertical direction.
2. A manually controlled constant brake universal wheel according to claim 1, wherein: the driving assembly comprises a locking bolt arranged on the mounting box and a rotating sleeve rotationally sleeved on the locking bolt, and the locking bolt is fixedly provided with a mounting block; the rotary sleeve is fixedly provided with a pressing plate, and is sleeved with a torsion spring; one end of the torsion spring is connected with the mounting block, and the other end of the torsion spring is connected with the pressing plate and applies downward elasticity to the pressing plate; the pressing plate applies downward elastic force to the mounting rod.
3. A manually controlled constant brake universal wheel according to claim 2, wherein: the device comprises a pressing plate, a pressing plate and a fixing plate, wherein the pressing plate is provided with a fixing plate, the fixing plate is provided with a mounting hole, and the pressing plate penetrates through the mounting hole;
the top of the mounting rod is provided with a top plate, and the top plate is arranged below the pressure plate.
4. A manually controlled constant brake universal wheel according to claim 3, wherein: the pressure plate bottom is equipped with spacing recess, the roof embedding in the spacing recess, the roof with be equipped with the rubber gasket between the pressure plate bottom.
5. A manually controlled constant brake universal wheel according to claim 3, wherein: the mounting box is provided with two guide rods at intervals, and the pressure plate is sleeved on the guide rods in a sliding manner along the vertical direction.
6. A manually controlled constant brake universal wheel according to claim 2, wherein: the rotary sleeve is fixedly provided with a gear, the mounting box is provided with a mounting seat, the longitudinal section of the mounting seat is U-shaped, the mounting seat is slidably provided with a rack, the rack is meshed with the gear, and the rack is provided with a connecting hole.
7. A manually controlled constant brake universal wheel according to claim 2, wherein: one side of the mounting box is provided with a mounting through hole, and the locking bolt penetrates through the mounting through hole and is in threaded connection with a locking nut; the locking bolt is fixedly provided with an adjusting turntable, and a plurality of adjusting clamping teeth are uniformly arranged on the adjusting turntable at intervals along the periphery of the adjusting turntable; and a plurality of adjusting clamping grooves are uniformly arranged at intervals on one side of the mounting box along the mounting through holes, and the adjusting clamping teeth are embedded into the adjusting clamping grooves.
8. A manually controlled constant brake universal wheel according to claim 1, wherein: the rotating assembly comprises a rotating column, an upper limiting disc and a lower limiting disc, wherein the rotating column passes through the mounting box in a rotating mode, the upper limiting disc is arranged at the top of the rotating column, the lower limiting disc is arranged at the bottom of the rotating column, and the mounting box is clamped between the upper limiting disc and the lower limiting disc; a plurality of balls are arranged between the upper limit disc and the installation box and between the lower limit disc and the installation box;
the rotating column is provided with a sliding hole with a polygonal cross section, and the cross section of the mounting rod is polygonal and slides through the sliding hole.
9. The manually controlled constant brake universal wheel of claim 8, wherein: the rotary column is provided with an accommodating groove, and a reset spring is arranged in the accommodating groove; the mounting rod is provided with a mounting piece, and the bottom of the mounting piece is connected with the top of the reset spring.
10. A manually controlled constant brake universal wheel according to claim 1, wherein: the bottom of the mounting rod is provided with an adjusting fixing plate and also comprises an adjusting bolt positioned below the rotating assembly, and the adjusting bolt penetrates through the adjusting fixing plate; the adjusting bolt is in threaded connection with two adjusting nuts, and the adjusting fixing plate is located between the two adjusting nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321820119.4U CN220220860U (en) | 2023-07-11 | 2023-07-11 | Manual control constant-braking universal wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321820119.4U CN220220860U (en) | 2023-07-11 | 2023-07-11 | Manual control constant-braking universal wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220220860U true CN220220860U (en) | 2023-12-22 |
Family
ID=89178814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321820119.4U Active CN220220860U (en) | 2023-07-11 | 2023-07-11 | Manual control constant-braking universal wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220220860U (en) |
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2023
- 2023-07-11 CN CN202321820119.4U patent/CN220220860U/en active Active
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