CN107930094B - Cam type rear wheel locking device for roller skates - Google Patents
Cam type rear wheel locking device for roller skates Download PDFInfo
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- CN107930094B CN107930094B CN201711145274.XA CN201711145274A CN107930094B CN 107930094 B CN107930094 B CN 107930094B CN 201711145274 A CN201711145274 A CN 201711145274A CN 107930094 B CN107930094 B CN 107930094B
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- cam
- rear wheel
- locking
- connecting rods
- locking device
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
- A63C17/1409—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting one or more of the wheels
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a cam type rear wheel locking device for roller skates, which comprises a fixed frame, two cam disks, a locking strip and two connecting rods, wherein the fixed frame is fixed above a rear wheel, two corresponding fixed parts are downwards arranged on two sides of the fixed frame, the two cam disks are respectively rotatably and lockably arranged on the inner sides of the two fixed parts through adjusting bolts, the cam disks are driven to rotate by rotating the head parts of the adjusting bolts, a cam chute is formed in the end surface of each cam disk facing the rear wheel, the locking strip is horizontally arranged between the two fixed parts in a vertically sliding manner, when the locking strip is extruded between the two rear wheels, the locking strip locks the two rear wheels, the upper ends of the two connecting rods are respectively fixed on two ends of the locking strip, a convex sliding block is arranged at the lower end of the two connecting rods, and the sliding block is matched with the cam chute. The invention not only realizes the fine adjustment function and is suitable for the rear wheels with different sizes, but also has better stability of locking the rear wheels, improves the safety, and can reduce the gravity center of the roller skates, so that a sporter can control the roller skates more easily.
Description
Technical Field
The invention relates to a cam type rear wheel locking device for a roller skate.
Background
The roller skates are popular with the vast teenagers due to the characteristics of rapidness and the like, even many children in the third and fourth years begin to participate in the sports, the necessary product of the roller skates is the roller skates, the braking of the roller skates is completed by the brake linings at the rear ends, the roller skates are also provided with rear wheel locking devices aiming at beginners, partial rear wheels are locked during learning, the beginners can complete exercises such as balanced walking and the like more conveniently by the locking pulleys, the rear wheel locking devices of the existing roller skates cannot be finely adjusted, the force for locking the rear wheels is usually provided by springs, and the locking of the rear wheels is unstable due to the problems of fatigue life, instability and uneven stress of the springs, the stress direction of the existing rear wheel locking cannot be completely consistent with the gravity direction of people to cause uneven stress, and the controllability of adjustment is not high due to errors of machining sizes, so that the beginners can easily fall down during learning.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a cam type rear wheel locking device for a roller skate, which not only realizes the fine adjustment function and is suitable for rear wheels with different sizes, but also has better stability of locking the rear wheels, improves the safety, and can reduce the gravity center of the roller skate so that a sporter can control the roller skate more easily.
To solve the technical problems, the technical scheme adopted by the invention is as follows:
a cam-type rear wheel locking device for roller skates is characterized by comprising:
the fixing frame is fixed above the rear wheel, two sides of the fixing frame are downwards provided with corresponding fixing parts, and the two fixing parts are respectively positioned on two sides of the rear wheel;
the two cam discs are rotatably and lockably arranged on the inner sides of the two fixing parts through adjusting bolts respectively, the heads of the adjusting bolts are rotated to drive the cam discs to rotate, and cam chutes are formed in the end faces, facing the rear wheels, of the cam discs;
the locking strip is horizontally arranged between the two fixing parts in a vertically sliding manner through two ends of the locking strip and is positioned between the two adjacent rear wheels, when the locking strip is extruded between the two rear wheels, two sides of the locking strip are respectively pressed on the two rear wheels, and the locking strip locks the two rear wheels;
the upper ends of the two connecting rods are respectively fixed at the two ends of the locking strip, the lower ends of the two connecting rods are provided with convex sliding blocks corresponding to the cam sliding grooves, and the sliding blocks are installed in a matched mode with the cam sliding grooves.
The end face of the cam disc facing the fixing part is provided with a first tooth surface, the inner side surface of the fixing part is provided with a second tooth surface corresponding to the first tooth surface, and when the cam disc is pressed on the inner side surface of the fixing part, the first tooth surface and the second tooth surface are mutually meshed to lock the cam disc; the adjusting bolt horizontally penetrates through the through hole in the fixing portion, the head of the adjusting bolt is located on the outer side face of the fixing portion, the cam disc is fixed to the tail of the adjusting bolt through the middle square hole of the cam disc, an elastic sheet is sleeved between the head of the adjusting bolt and the outer side face of the fixing portion, and when pressure is applied to the head of the adjusting bolt to enable the elastic sheet to be compressed, the first tooth face is separated from the second tooth face.
The inner side surface of the fixing part is provided with a cam plate mounting groove corresponding to the cam plate, the second tooth surface is positioned on the bottom surface of the cam plate mounting groove, and the cam plate is embedded in the cam plate mounting groove.
The tail of the adjusting bolt is provided with a shaft shoulder and an external thread, a locking nut is screwed on the external thread, and the cam disc is locked between the shaft shoulder and the locking nut.
The adjusting bolt is a hexagon socket head cap screw, a convex block is arranged on the outer side face of the fixing portion, a through hole is formed in the head portion, corresponding to the adjusting bolt, of the convex block, and the head portion and the elastic sheet of the adjusting bolt are located in the through hole.
The inner side surfaces of the two fixing parts are provided with vertical sliding grooves corresponding to the locking strips, the two ends of each locking strip are inserted into the two vertical sliding grooves respectively, and each locking strip slides along the vertical sliding grooves.
The both ends of the dead strip of lock are equipped with vertical connecting rod mounting groove respectively, open at the middle part of the dead strip of lock and have and pass the hole, during the upper end of two connecting rods imbeds connecting rod mounting groove respectively, correspond respectively in the upper end of two connecting rods and pass the hole and open and have the fixed orifices, the dead device of lock still includes the bolt, and the bolt passes and passes the hole, and the both ends of bolt are inserted respectively in the fixed orifices of two connecting rods, and the both ends of bolt still are outstanding and stretch into vertical spout from the side of two connecting rods respectively.
The inner side surfaces of the two fixing parts are also respectively provided with a guide groove corresponding to the two connecting rods, and the two connecting rods can be respectively embedded into the two guide grooves in a vertically sliding manner.
And friction surfaces are arranged on two sides of the locking strip corresponding to the rear wheels.
Compared with the prior art, the invention has the following beneficial effects:
the locking strip is driven by the cam disc to move up and down, can be adjusted at will within a certain range, and is locked by the locking cam disc when adjusted to a proper position, so that the fine adjustment function of the locking device is realized, the locking device is suitable for rear wheels with different sizes, the locking stability of the rear wheels is better, the safety is improved, the gravity center of the roller skates can be reduced, and a sporter can control the roller skates more easily.
Drawings
FIG. 1 is an exploded view of the deadlocking apparatus of the present invention;
FIG. 2 is a perspective view of the locking mechanism of the present invention;
FIG. 3 is a perspective view of the mounting bracket of the locking device of the present invention;
FIG. 4 is a schematic elevational view of a cam plate of the lockup means of the invention;
FIG. 5 is a rear schematic view of a cam plate of the locking apparatus of the present invention;
FIG. 6 is a schematic perspective view of the deadlocking bar of the deadlocking apparatus of the present invention;
FIG. 7 is a schematic perspective view of the connecting rod of the deadlocking apparatus of the present invention;
FIG. 8 is a socket head cap wrench;
FIG. 9 is a front view of the present invention mounted on a skate;
figure 10 is a schematic view of the assembly of the invention with a rack of roller skates;
fig. 11 is a schematic view showing the positional relationship between the deadlocking bar and the rear wheel of the present invention.
The reference numerals in the drawings mean:
1-a roller skate rear wheel locking device; 11-a fixing frame; 111-a stationary part; 112-a bump; 113-circular grooves; 114-a second tooth surface; 115-cam plate mounting slot; 116-a guide groove; 117-vertical chute; 118-a connecting portion; 119-buckling; 12-a deadlocking bar; 121-connecting rod mounting grooves; 122-through the aperture; 123-friction surface; 13-a bolt; 14-adjusting the bolt; 15-a spring plate; 16-a cam disc; 161-a first tooth flank; 162-middle square hole; 163-cam runner; 17-a connecting rod; 171-a fixation hole; 172-a slide block; 18-a locking nut; 19-socket head cap screw wrench; 2-rear wheel; 3-a rack of roller skates.
Detailed Description
The invention is further described below with reference to examples.
The cam type roller skate rear wheel locking device of the embodiment of the present invention as shown in fig. 1 and 2 has a symmetrical structure, and includes a fixed frame 11, two cam plates 16, a locking strip 12, two connecting rods 17, a latch 13, a resilient plate 15, an adjusting bolt 14 and a locking nut 18
As shown in FIG. 3, two sides of the fixing frame 11 are provided with corresponding fixing portions 111 facing downward, the fixing frame 11 is connected with the two fixing portions 111 through a connecting portion 118 at the upper end, the two fixing portions 111 are respectively located at two sides of the rear wheel 2, and the upper end of the fixing frame 11 is provided with a buckle 119 connected with the roller skate rack 3.
The dead bar 12 level of lock is located between two fixed parts 111, and the corresponding dead bar of lock of medial surface of two fixed parts 11 is equipped with vertical spout 117, and vertical spout 117 is for running through the vertical square through hole of fixed part 11, and the both ends of the dead bar 12 of lock insert two vertical spouts 117 respectively in, and the dead bar 12 of lock slides along vertical spout 117, has realized that the dead bar 12 of lock can gliding horizontal installation from top to bottom between two fixed parts 111, and the dead bar 12 of lock after the installation is located between two rear wheels that need lock to die. As shown in fig. 6, the friction surfaces 123 are provided on both sides of the dead lock bar 12 corresponding to the rear wheels, and have a certain curvature, so that when the dead lock bar 12 is pressed into the gap between the two rear wheels 2, the friction surfaces 123 on both sides of the dead lock bar 12 are respectively pressed against the two rear wheels 2, and the dead lock bar 12 locks the two rear wheels 2.
The two cam plates 16 are symmetrically arranged, as shown in fig. 4 and 5, the cam plates 16 are cam-like plates with certain thicknesses, the inner side surfaces of the two fixing parts 111 are respectively provided with cam plate installation grooves 115 corresponding to the two cam plates 16, the cam plates 16 are embedded in the cam plate installation grooves 115, and the cam plate installation grooves 115 are large enough not to influence the rotation of the cam plates 16. The end surface of the cam plate 16 facing the fixed part is provided with a first tooth surface 161, the bottom surface of the cam plate mounting groove 115 is provided with a second tooth surface 114 corresponding to the first tooth surface 161, the first tooth surface 161 and the second tooth surface 114 are both distributed along the circumferential direction to form a circular tooth surface, the length direction of the rack is radial, when the cam plate 16 presses the bottom surface of the cam plate mounting groove 115, the first tooth surface 161 and the second tooth surface 114 are mutually meshed, and the cam plate 16 is locked when the first tooth surface 161 and the second tooth surface are mutually meshed.
The middle part of the cam plate 16 is provided with a middle square hole 162, the fixing part is correspondingly provided with a through hole, the adjusting bolt 14 passes through the through hole, the adjusting bolt 14 is a hexagon socket head cap screw, and the head part of the adjusting bolt 14 is positioned on the outer side surface of the fixing part 111. The elastic sheet 15 is sleeved between the head of the adjusting bolt 14 and the outer side face of the fixing portion, the convex block 112 is arranged on the outer side face of the fixing portion, the convex block 112 is provided with a circular groove 113 corresponding to the head of the adjusting bolt 14, the head of the adjusting bolt 14 and the elastic sheet 15 are both located in the circular groove 113, the convex block 112 enables the outer side face of the fixing portion to be flat, the head of the adjusting bolt is not prone to scratching a user, and a protection function is achieved. The adjusting bolt 14 has a shoulder at its rear end and an external thread onto which a locking nut 18 is screwed, and the cam disc 16 is locked between the shoulder and the locking nut 18, thereby fixing the cam disc to the rear end of the adjusting bolt 14. When the elastic sheet is not compressed, the cam plate 16 presses on the bottom surface of the cam plate mounting groove, and the first tooth surface 161 and the second tooth surface 114 are mutually meshed. When the cam plate 16 needs to be rotated for adjustment, the head of the socket head cap screw 14 is inserted through the socket head cap screw wrench 19, and pressure is applied to the head of the adjusting screw 14 in the axial direction of the adjusting screw 14 to compress the resilient plate 15, so that the first tooth surface 161 is separated from the second tooth surface 114, and the cam plate 16 can be rotated by rotating the socket head cap screw wrench 19. Fig. 8 shows a socket head cap screw 19 for adjusting a socket head cap screw.
The two connecting rods 17 are mounted on the inner side surfaces of the two fixing portions 111, the inner side surfaces of the two fixing portions 111 are further provided with guide grooves 116 corresponding to the two connecting rods, and the two connecting rods 17 are respectively embedded into the two guide grooves 116 in a vertically sliding manner. As shown in fig. 6, two ends of the dead-locking bar 12 are respectively provided with a vertical link rod installation groove 121, a through hole 122 is formed in the middle of the dead-locking bar, and the upper ends of the two link rods 17 are respectively embedded in the link rod installation grooves 121. As shown in fig. 7, the upper ends of the two connecting rods 17 are respectively provided with a fixing hole 171 corresponding to the through hole 122, the bolt 13 passes through the through hole 122, the two ends of the bolt 13 are respectively inserted into the fixing holes 171 of the two connecting rods 17, so that the upper ends of the two connecting rods 17 are respectively fixed at the two ends of the dead-lock bar 12, the two ends of the bolt 13 also respectively protrude from the side surfaces of the two connecting rods 17 and extend into the vertical sliding groove 117, the structure also enables the two connecting rods 17 and the dead-lock bar 12 to be detachable, and the assembly and part replacement of the dead-lock device are facilitated. The end surface of the cam disc 16 facing the rear wheel 2 is provided with a cam sliding groove 163, the cam sliding groove 163 is in a shape similar to a cam ellipse, the lower end of the connecting rod 17 is provided with a convex sliding block 172 corresponding to the cam sliding groove 163, the sliding block 172 is matched with the cam sliding groove 163, and the connecting rod 17 is driven to move up and down by the rotation of the cam disc 16.
As shown in figures 9, 10 and 11, the rear wheel locking device 1 of the roller skates is fixed on the shoe rack 3 of the roller skates and is positioned above the two rear wheels 2 at the rear parts of the roller skates, the locking strip 12 is positioned above the gap between the two rear wheels 2 at the rear parts of the roller skates, the two rear wheels 2 at the rear parts of the roller skates can be locked by adjusting the downward pressing of the locking strip 12 between the two rear wheels 2, the pressure of the locking strip 12 on the rear wheels 2 can be adjusted by rotating the cam disc 16, so as to adjust the locking degree of the rear wheels 2, after the adjustment is completed, the pressure applied on the adjusting bolt 14 is released, the elastic sheet 15 is restored, the first tooth surface 161 is continuously meshed with the second tooth surface 114, so as to lock the rotation of the cam disc 16, namely lock the position of the locking strip 12.
Claims (9)
1. A cam-type rear wheel locking device for roller skates, comprising:
the fixing frame is fixed above the rear wheel, corresponding fixing parts are arranged on two sides of the fixing frame downwards, and the two fixing parts are respectively positioned on two sides of the rear wheel;
the two cam discs are rotatably and lockably arranged on the inner sides of the two fixing parts through adjusting bolts respectively, the heads of the adjusting bolts are rotated to drive the cam discs to rotate, and cam chutes are formed in the end faces, facing the rear wheels, of the cam discs;
the locking strip is horizontally arranged between the two fixing parts through two ends of the locking strip which can slide up and down and is positioned between the two adjacent rear wheels, when the locking strip is extruded between the two rear wheels, two sides of the locking strip are respectively pressed on the two rear wheels, and the locking strip locks the two rear wheels;
and the upper ends of the two connecting rods are respectively fixed at the two ends of the locking strip, the lower ends of the two connecting rods correspond to the cam sliding grooves and are provided with convex sliding blocks, and the sliding blocks are matched with the cam sliding grooves.
2. The cam-type rear wheel locking device for skates according to claim 1, wherein: the end face, facing the fixing part, of the cam disc is provided with a first tooth surface, the inner side face of the fixing part is provided with a second tooth surface corresponding to the first tooth surface, and when the cam disc is pressed on the inner side face of the fixing part, the first tooth surface and the second tooth surface are mutually meshed and locked to the cam disc; the adjusting bolt horizontally penetrates through the through hole in the fixing portion, the head of the adjusting bolt is located on the outer side face of the fixing portion, the cam disc is fixed to the tail of the adjusting bolt through a middle square hole of the cam disc, an elastic sheet is sleeved between the head of the adjusting bolt and the outer side face of the fixing portion, and when pressure is applied to the head of the adjusting bolt, the elastic sheet is compressed, the first tooth face is separated from the second tooth face.
3. The cam-type rear wheel locking device for skates according to claim 2, wherein: the inner side surface of the fixing part corresponds to the cam disc and is provided with a cam disc mounting groove, the second tooth surface is positioned on the bottom surface of the cam disc mounting groove, and the cam disc is embedded in the cam disc mounting groove.
4. The cam-type rear wheel locking device for skates according to claim 3, wherein: the tail of the adjusting bolt is provided with a shaft shoulder and an external thread, a locking nut is screwed on the external thread, and the cam disc is locked between the shaft shoulder and the locking nut.
5. The cam-type rear wheel locking device for skates according to claim 4, wherein: the adjusting bolt is a hexagon socket head cap screw, a convex block is arranged on the outer side face of the fixing part, a through hole is formed in the head, corresponding to the adjusting bolt, of the convex block, and the head and the elastic sheet of the adjusting bolt are located in the through hole.
6. The cam-type rear wheel locking device for roller skates according to claim 5, wherein: the inner side surfaces of the two fixing parts are provided with vertical sliding grooves corresponding to the locking strips, two ends of each locking strip are inserted into the two vertical sliding grooves respectively, and each locking strip slides along the vertical sliding grooves.
7. The cam-type rear wheel locking device for roller skates according to claim 6, wherein: the both ends of locking the dead strip are equipped with vertical connecting rod mounting groove respectively open at the middle part of locking the dead strip has and passes the hole, the upper end of two connecting rods imbeds respectively in the connecting rod mounting groove, correspond respectively in the upper end of two connecting rods pass the hole and open there is the fixed orifices, the locking device still includes the bolt, the bolt passes pass the hole, the both ends of bolt insert respectively in the fixed orifices of two connecting rods, the both ends of bolt are still followed respectively the side of two connecting rods is outstanding and is stretched into in the vertical chute.
8. The cam-type rear wheel locking device for roller skates according to claim 7, wherein: the inner side surfaces of the two fixing parts are also respectively provided with a guide groove corresponding to the two connecting rods, and the two connecting rods are respectively embedded into the two guide grooves in a vertically sliding manner.
9. The cam-type rear wheel locking device for roller skates according to any one of claims 1 to 8, wherein: and friction surfaces are arranged on two sides of the locking strip corresponding to the rear wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145274.XA CN107930094B (en) | 2017-11-17 | 2017-11-17 | Cam type rear wheel locking device for roller skates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145274.XA CN107930094B (en) | 2017-11-17 | 2017-11-17 | Cam type rear wheel locking device for roller skates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107930094A CN107930094A (en) | 2018-04-20 |
| CN107930094B true CN107930094B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711145274.XA Active CN107930094B (en) | 2017-11-17 | 2017-11-17 | Cam type rear wheel locking device for roller skates |
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| Country | Link |
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| CN (1) | CN107930094B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201150783Y (en) * | 2008-01-31 | 2008-11-19 | 陈伟成 | Rear-wheel skates braking structure |
| CN202700033U (en) * | 2012-08-11 | 2013-01-30 | 张克明 | Anti-tumbling roller skates |
| CN103055493A (en) * | 2013-01-15 | 2013-04-24 | 姜丰 | Ice skates capable of keeping rollers in brake state |
| CN203790557U (en) * | 2014-01-18 | 2014-08-27 | 付金浩 | Stopping brake device for electric roller skates |
| CN104353237A (en) * | 2014-10-24 | 2015-02-18 | 姜丰 | Roller skating walking locker for roller skating shoe |
| CN204767313U (en) * | 2015-07-07 | 2015-11-18 | 陈耿升 | Roller skate brakies locking device |
| CN206631162U (en) * | 2017-03-16 | 2017-11-14 | 阜南县邰氏宇崴运动器材有限公司 | A kind of arrestment mechanism of single roller skate |
-
2017
- 2017-11-17 CN CN201711145274.XA patent/CN107930094B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201150783Y (en) * | 2008-01-31 | 2008-11-19 | 陈伟成 | Rear-wheel skates braking structure |
| CN202700033U (en) * | 2012-08-11 | 2013-01-30 | 张克明 | Anti-tumbling roller skates |
| CN103055493A (en) * | 2013-01-15 | 2013-04-24 | 姜丰 | Ice skates capable of keeping rollers in brake state |
| CN203790557U (en) * | 2014-01-18 | 2014-08-27 | 付金浩 | Stopping brake device for electric roller skates |
| CN104353237A (en) * | 2014-10-24 | 2015-02-18 | 姜丰 | Roller skating walking locker for roller skating shoe |
| CN204767313U (en) * | 2015-07-07 | 2015-11-18 | 陈耿升 | Roller skate brakies locking device |
| CN206631162U (en) * | 2017-03-16 | 2017-11-14 | 阜南县邰氏宇崴运动器材有限公司 | A kind of arrestment mechanism of single roller skate |
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| Publication number | Publication date |
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| CN107930094A (en) | 2018-04-20 |
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