Roller device and roller shoe with same

Abstract

The roller device comprises a shell, a roller set, a movable block and a control piece, the shell is provided with an extending opening and is divided into a first containing space and a second containing space through a baffle, a sliding groove is formed in the movable block, and the sliding groove is communicated with the first containing space and the second containing space. The baffle and / or the shell on the opposite side are / is provided with a communicating groove which is provided with a downward opening and communicates with the sliding groove, and the pulley block is transversely arranged in the sliding groove and the communicating groove and is controlled to move in the sliding groove and the communicating groove and stretch out of / retract into the stretching-out opening through the cooperation effect of the communicating groove and the moving block. According to the utility model, the transformation between a violent walking or roller sole and a flat sole is realized, the roller and the wheel shaft are combined to form a roller assembly, the disassembly and assembly are convenient, and the performance is reliable and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of footwear products, in particular to a pulley device and a flash shoe with the pulley device. Background Art

[0002] The flash shoe, also known as the "flying shoe", originated in the United States. It is a unique sports shoe with a pulley installed at the heel, allowing the wearer to roller skate on the ground with a few simple steps. It is also a multi-functional sports and leisure shoe. The wheels of the sole device are of high quality, equipped with one or two wheels, which are fashionable and safe. The flash shoe can use the wheels to perform various skating actions and dances, reflecting street culture. It can also remove the wheels and transform into a very comfortable high-end leisure shoe. With its tangible design, safety, and novel concept that allows people to roller skate anytime and anywhere, the flash shoe instantly became the new generation of leisure sports for teenagers after the scooter.

[0003] However, the existing flash shoes have the following deficiencies in the using process: First, due to the frequent disassembly of the rollers, the card slots are deformed and worn, resulting in the loosening of the wheel axles. If not dealt with in time, the rollers will suddenly fall off and become necrotic during high-speed skating, causing the skater to fall, posing a serious safety hazard; Second, it is not convenient to install and disassemble the rollers, and it must be completed with the help of disassembly tools; In addition, there are various styles of existing roller skates, but relatively single in terms of function, and cannot meet the different requirements of users from the beginner stage to the proficient stage. When beginners practice roller skating, due to their inability to fully master the skills of roller skating, they are prone to fall unsteadily and get injured.

[0004] In view of this, the inventor of this case conducted in-depth research on the above problems, and thus this case was born. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pulley device and a flash shoe with the pulley device. Through the structural improvement of the pulley device, the flash shoe has two usage functions, thus greatly expanding the functions of the product and improving the competitiveness of the product.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A pulley device, comprising a housing and a pulley set. An outlet is provided on the lower side of the housing for the pulley set to extend out of / retract into the housing, and the sliding direction of the pulley set is defined as the front-back direction;

[0008] It further includes a control mechanism for controlling the extension / retraction of the pulley set from / to the outlet opening. The housing is divided by a baffle into a first accommodation space for accommodating the pulley set and a second accommodation space for accommodating the control mechanism. The control mechanism includes a moving block disposed on the second accommodation space and a control member for controlling the movement of the moving block in the front-rear direction of the second accommodation space. The moving block is provided with a sliding groove for the pulley set to slide along the axial direction of the pulley set. The baffle and / or the housing on the opposite side are both provided with a communication groove with an opening facing downward and communicating with the sliding groove. The pulley set is horizontally arranged in the sliding groove and the communication groove and cooperates with the moving block through the communication groove to control the movement of the pulley set in the sliding groove and the communication groove, and extend / retract from / to the outlet opening.

[0009] Preferably, it further includes a positioning mechanism. The positioning mechanism includes a positioning rod and a sliding track for one end of the positioning rod to slide. The sliding track is disposed on the moving block. One end of the positioning rod is connected to the housing, and the other end is slidably disposed in the sliding track. The sliding track has a first positioning point for the moving block to move to retract the pulley set into the outlet opening and a second positioning point for the moving block to move to extend the pulley set out of the outlet opening.

[0010] Preferably, it further includes a positioning mechanism. The positioning mechanism includes a positioning rod and a sliding track for one end of the positioning rod to slide. The sliding track is disposed on the housing. One end of the positioning rod is connected to the moving block, and the other end is slidably disposed in the sliding track. The sliding track has a first positioning point for the moving block to move such that the pulley set retracts into the outlet opening and a second positioning point for the moving block to move such that the pulley set extends out of the outlet opening.

[0011] Preferably, a limiting block is disposed in the sliding track. The limiting block is provided with a limiting groove for one end of the positioning rod to be clamped. The limiting groove is the second positioning point, and the end away from the limiting groove is the first positioning point. The sliding track is in a Y shape and includes a first sliding track, a second sliding track, and the limiting groove that are interconnected.

[0012] Preferably, the thickness of the limiting block gradually increases from the first positioning point to the second positioning point. The side walls of the first sliding track and the second sliding track are both guiding inclined slopes. The limiting groove is arc-shaped and forms guiding surfaces on both sides. At positions corresponding to both ends of the limiting groove, two continuously arranged guiding grooves are provided on the outer groove walls of the first sliding track and the second sliding track. The opening directions of the two guiding grooves are opposite to the opening direction of the limiting groove. A V-shaped convex block is formed between the two guiding grooves. The distance between the tip of the V-shaped convex block and the second positioning point is less than the distances between both ends of the limiting groove and the second positioning point.

[0013] Preferably, at one end of the first sliding track and the second sliding track away from the limiting groove, a reduced-diameter track communicating with the sliding track extends. The rod portion of the positioning rod is movably arranged on the reduced-diameter track, and the bottom wall of the reduced-diameter track is the first positioning point.

[0014] Preferably, a return mechanism is further included. The return mechanism includes an elastic member for resetting the moving block. Two ends of the elastic member are respectively fixedly connected and cooperated with the moving block and the side wall of the housing, and can be deformed as the moving block moves.

[0015] Preferably, the control member is a button arranged on the outer side of the housing. A control rod is further arranged between the button and the moving block. A through groove for the control rod to pass through is provided on the housing. One end of the control member is integrally or separately connected to the button, and the other end passes through the through groove and is integrally or separately connected to the moving block.

[0016] Preferably, the sliding groove is an inclined groove, which is inclined upward from the rear end to the front end of the moving block. A first bottom surface and a second bottom surface are respectively arranged on the front and rear sides of the opening of the sliding groove. The second bottom surface is higher than the first bottom surface. When the first bottom surface abuts against the bottom surface of the housing, a gap is provided between the second bottom surface and the bottom surface of the housing.

[0017] The present utility model further provides a pair of roller shoes, including a shoe upper, a sole, and a pulley device. The pulley device is installed at the bottom of the sole, and the bottom surface of the housing is on the same horizontal plane as the bottom surface of the sole.

[0018] By adopting the foregoing design scheme, the beneficial effects of the present utility model are as follows: The present utility model drives the moving block to move through the control member, and drives the pulley set to move in the chute and the communication groove, and extends / retracts the outlet to adjust the sole type; or the positioning rod slides in the sliding track to the first positioning point, and at this time it is used as a flat sole; or the positioning rod slides in the sliding track to the second positioning point, and at this time it is used as a running sole or a pulley sole; the present utility model can switch between a running sole or a pulley sole and a flat sole, ensuring the stable position of the pulley set during use, safe use, and reliable and stable performance. Description of the Drawings

[0019] Figure 1 It is a schematic structural view of the pulley device in the first embodiment of the present utility model when it is closed;

[0020] Figure 2 It is a cross-sectional view of the pulley device in the first embodiment of the present utility model when it is closed;

[0021] Figure 3 It is a schematic structural view of the pulley device in the first embodiment of the present utility model when it is closed (the cover plate is omitted);

[0022] Figure 4 It is a schematic structural view of the pulley device in the first embodiment of the present utility model when it is opened;

[0023] Figure 5 It is a cross-sectional view of the pulley device in the first embodiment of the present utility model when it is opened;

[0024] Figure 6 It is a schematic structural view of the pulley device in the first embodiment of the present utility model when it is opened (the cover plate is omitted);

[0025] Figure 7 It is an exploded view of the pulley device in the first embodiment of the present utility model;

[0026] Figure 8 It is a schematic structural view of the pulley device in the second embodiment of the present utility model (the cover plate is omitted);

[0027] Figure 9 It is an exploded view of the pulley device in the second embodiment of the present utility model;

[0028] Figure 10 It is a schematic structural view of a running shoe with a pulley device in the present utility model;

[0029] In the figure: housing 1, outlet 11, baffle 12, communication groove 121, first accommodation space 131, second accommodation space 132, through groove 14, first rotation hole 15, sliding cavity 16, guide rail 161, pulley set 2, axle 21, pulley 22, control mechanism 3, moving block 31, chute 311, first bottom surface 312, second bottom surface 313, second rotation hole 314, control member 32, control rod 33, positioning mechanism 4, positioning rod 41, sliding track 42, first positioning point 421, second positioning point 422, first sliding track 423, second sliding track 424, reduced diameter track 425, guiding groove 426, convex block 427, limiting block 43, limiting groove 431, elastic member 5, sliding cover 6, top cover 7. Detailed implementation mode

[0030] The following combines the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0031] For the convenience of narration, the sliding direction of the pulley set 2 is defined as the front-back direction.

[0032] Embodiment 1: As Figures 1-6 shown

[0033] This embodiment provides a pulley device, including a housing 1, a pulley set 2, and a control mechanism 3 for controlling the extension / retraction of the pulley set 2 from / to the housing 1. An outlet 11 for the pulley set 2 to extend / retract from / to the housing 1 is provided on the downward side of the housing 1. The pulley set 2 includes an axle 21 and at least one pulley 22 mounted on the axle 21. It should be noted that the pulley set 2 in this embodiment can be multiple pulleys (two pulleys are used in this embodiment) (as Figures 1-6 ), or a single pulley (as Figures 7-8 ). Only two pulleys 22 are elaborated in detail in this embodiment, and a single pulley 22 is elaborated in detail in Embodiment 2. More than two pulleys 22 will not be elaborated here.

[0034] The housing 1 is divided by a baffle 12 into a first accommodation space 131 for accommodating the pulley set 2 and a second accommodation space 132 for accommodating the control mechanism 3. There are two first accommodation spaces 131, and the two first accommodation spaces 131 are arranged side by side left and right. The second accommodation space 132 is arranged between the two first accommodation spaces 131. The communication grooves 121 (which will be introduced in detail below) on the baffles 12 on the left and right sides communicate the two first accommodation spaces 131 and the second accommodation space 132. Two pulleys 22 are respectively arranged in the two first accommodation spaces 131, and the wheel axle 21 passes horizontally through the communication groove 121 and can move up and down in the communication groove 121. The shape of the first accommodation space 131 is adapted to the pulley 22, and when the pulley 22 rotates at the outlet 11 extending out of the first accommodation space 131, it will not touch the side wall of the first accommodation space 131. The structures of the two pulleys 22 balance the forces on both sides of the wheel axle 21, making the roller shoes equipped with this pulley device more stable when sliding.

[0035] The control mechanism 3 includes a moving block 31 arranged on the second accommodation space 132 and a control member 32 for controlling the moving block 31 to move in the front-back direction of the second accommodation space 132. The moving block 31 is provided with a sliding groove 311 for the pulley set 2 to slide along the axis direction of the pulley set 2. The baffle 12 and / or the opposite side of the housing 1 are both provided with communication grooves 121 with openings facing downwards and communicating with the sliding groove 311. The sliding groove 311 and the communication groove 121 form a channel for placing the wheel axle 21. The wheel axle 21 of the pulley set 2 is horizontally arranged in the channel formed by the sliding groove 311 and the communication groove 121 and is cooperated with the sliding groove 311 of the moving block 31 through the communication groove 121 to control the movement of the wheel axle 21 in the sliding groove 311 and the communication groove 121 and extend / retract from the corresponding outlet 11.

[0036] Further, the control member 32 is a button disposed outside the housing 1. A control rod 33 is further disposed between the button and the moving block 31. The housing 1 is provided with a through slot 14 for the control rod 33 to pass through. One end of the control member 32 is integrally or separately connected to the button, and the other end passes through the through slot 14 and is integrally or separately connected to the moving block 31. In this embodiment, only by pressing the button to drive the moving block 31 to move back and forth in the second accommodation space 132 through the control rod 33 can the movement of the wheel shaft 21 on the sliding slot 311 be changed, that is, the telescopic state of the pulley 21 relative to the extension port 11 can be changed, and then the use state of the roller shoes equipped with this pulley device can be controlled, and the pulley set 2 can be effectively extended / retracted from the extension port 11, and the control stability is good; and the pulley set 2 is horizontally arranged in the channel formed by the sliding slot 311 and the communication slot 121, and the communication slot 121 limits the pulley set 2 in the front and rear directions, making the connection between the pulley set 2 and the housing 1 firm, avoiding the pulley set 2 from colliding with the side wall during the sliding process, and the sliding is more stable and the safety is high. Of course, the control member 32 in this embodiment can also be a telescopic driving member disposed in the housing 1, such as an electric telescopic driving member, and the telescopic driving member can be controlled to expand and contract through wireless Bluetooth or other communication methods, and then drive the moving block 31 to move back and forth, which will not be elaborated here.

[0037] This embodiment further includes a positioning mechanism 4 and a rebounding mechanism. The rebounding mechanism includes an elastic member 5 for resetting the moving block 31. The two ends of the elastic member 5 are respectively fixedly connected and cooperated with the moving block 31 and the side wall of the housing 1, and can be deformed as the moving block 31 moves. The elastic member 5 in this embodiment can adopt elastic members 5 such as springs or rubber bands. Of course, an electric motor can also be used to drive the reset of the moving block 31, which will not be elaborated here.

[0038] The positioning mechanism 4 includes a positioning rod 41 and a sliding track 42 for one end of the positioning rod 41 to slide. The sliding track 42 is disposed on the moving block 31. One end of the positioning rod 41 is connected to the housing 1, and the other end is bent downward to form a sliding portion and is slidably disposed in the sliding track 42. The housing 1 is provided with a first rotation hole 15 for the positioning rod 41 to be rotatably connected. One end portion of the positioning rod 41 is rotatably disposed in the first rotation hole 15, so that the positioning rod 41 can slide relatively swingably in the sliding track 42. In this embodiment, when the elastic member 5 is disposed at the front end of the moving block 31, the front end of the positioning rod 41 is relatively fixedly connected to the housing 1, and the rear end of the positioning rod 41 can slide in the sliding track 42; when the elastic member 5 is disposed at the rear end of the moving block 31, the rear end of the positioning rod 41 is relatively fixedly connected to the housing 1, and the front end of the positioning rod 41 can slide in the sliding track 42; both of the above two methods are acceptable, and the difference lies only in the moving direction of the positioning rod 41, and there is no other difference. This embodiment takes the elastic member 5 disposed at the front end of the moving block 31 as an example to elaborate on this embodiment in detail.

[0039] The elastic member 5 is disposed within the second accommodation space 132, with its rear end connected to the front end of the moving block 31 and its front end connected to the side wall of the second accommodation space 132. The sliding track 42 has a first positioning point 421 for the moving block 31 to move to retract the pulley 22 into the outlet 11 and a second positioning point 422 for the moving block 31 to move to extend the pulley 22 out of the outlet 11. The first positioning point 421 is disposed in front of the second positioning point 422.

[0040] A limiting block 43 is disposed within the sliding track 42, such that the sliding track 42 is in a Y shape. A limiting groove 431 for engaging with the sliding portion of the positioning rod 41 is disposed on the side of the limiting block 43 facing the rear side. By means of the limiting groove 431, the positioning rod 41 is limited to overcome the elastic restoring force of the elastic member 5, such that the pulley 22 can stably extend out of the outlet 11, thereby avoiding the situation that the roller shoes with a pulley device get stuck upward into the housing 1 during sliding and having better safety.

[0041] The sliding track 42 includes a first sliding track 423, a second sliding track 424, and the limiting groove 431 that are interconnected. The lowest point in the middle of the limiting groove 431 is the second positioning point 422, and the end of the sliding track 42 away from the limiting groove 431 is the first positioning point 421, that is, the connection point of the rear ends of the first sliding track 423 and the second sliding track 424 is the first positioning point 421. Preferably, a reduced-diameter track 425 communicating with the sliding track 42 extends from the ends of the first sliding track 423 and the second sliding track 424 away from the limiting groove 431. The rod portion of the positioning rod 41 is movably disposed on the reduced-diameter track. At this time, the bottom wall of the reduced-diameter track 425 is the first positioning point 421. The positioning rod 41 slides clockwise within the sliding track 42. The sliding portion of the positioning rod 41 slides from the reduced-diameter track 425 to the first sliding track 423 and then to the limiting groove 431, that is, the process in which the pulley 22 gradually extends out of the housing 1; the sliding portion of the positioning rod 41 slides from the limiting groove 431 to the second sliding track 424 and then to the bottom wall of the reduced-diameter track 425, that is, the process in which the pulley 22 gradually retracts into the housing 1.

[0042] The thickness of the limit block 43 gradually increases from the first positioning point 421 to the second positioning point 422. The side walls of the first sliding track 423 and the second sliding track 424 are both guiding inclined slopes. The limit groove 431 is arc-shaped and forms guiding surfaces on both sides. At the positions corresponding to both ends of the limit groove 431, two continuously arranged guiding grooves 426 are provided on the outer groove walls of the first sliding track 423 and the second sliding track 424. The two guiding grooves 426 are symmetrically arranged on both sides of the limit groove 431, and the opening directions of the two guiding grooves 426 are opposite to the opening direction of the limit groove 431. In this embodiment, the notch of the limit groove 431 faces backward, and the notches of the two guiding grooves 426 both face forward. The guiding groove 426 on one side of the first sliding track 423 is used to introduce the sliding part of the positioning rod 41 into the limit groove 431. The limit groove 431 is arc-shaped and forms guiding surfaces on both sides. The guiding surfaces facilitate the sliding part of the positioning rod 41 to enter the limit groove 431 from the guiding groove 426 on one side of the first sliding track 423, and also facilitate the sliding part of the positioning rod 41 to enter the guiding groove 426 on one side of the second sliding track 424 from the limit groove 431 and enter the second sliding track 424. A V-shaped convex block 427 is formed between the two guiding grooves 426. The distance a between the tip of the V-shaped convex block 427 and the second positioning point 422 is smaller than the distance b between both ends of the limit groove 431 and the second positioning point 422. In this way, when pressing the button (control member 32), the moving block 31 drives the sliding part of the positioning rod 41 to move backward along the first sliding track 423 until the sliding part of the positioning rod 41 moves to the end of the first sliding track 423 and then falls into the guiding groove 426 on the same side of the first sliding track 423. After releasing the button, it will make the sliding part of the positioning rod 41 be clamped at the limit groove 431 under the reset action of the elastic member 5, completing the extension of the pulley 22 out of the outlet 11. When the pulley 22 needs to be retracted, just press the button again to make the sliding part of the positioning rod 41 move backward to the guiding groove 426 on one side of the second sliding track 424. After releasing the button, it will make the sliding part of the positioning rod 41 slide forward along the second sliding track 424 and be clamped on the bottom wall of the reduced-diameter track 425, completing the retraction of the pulley 22 into the housing 1.

[0043] Further, a chute 311 with an opening facing downward is provided on the lower side of the moving block 31. The chute 311 is an inclined chute, which is inclined upward from the rear end to the front end of the moving block 31. A first bottom surface 312 and a second bottom surface 313 are respectively provided on the front and rear sides of the opening of the chute 311. The second bottom surface 313 is higher than the first bottom surface 312. When the first bottom surface 312 abuts against the bottom surface of the first accommodating space 131, a gap is provided between the second bottom surface 313 and the bottom surface of the first accommodating space 131. The width of the chute 311 is adapted to the diameter of the wheel axle 21. The distance of the gap between the second bottom surface 313 and the bottom surface of the first accommodating space 131 is greater than the diameter of the wheel axle 21. Preferably, the included angle between the central axis of the chute 311 and the bottom surface of the first accommodating space 131 is 30°-60°. Preferably, the included angle between the central axis of the chute 311 and the bottom surface of the first accommodating space 131 is 45°.

[0044] Further, this embodiment further includes a sliding cover 6. A sliding cavity 16 is provided at the bottom of the housing 1. Guide rails 161 are provided on both sides of the sliding cavity 16. The sliding cavity 16 is correspondingly provided at the extending outlet 11 and extends to one side of the housing 1. The sliding cover 6 is slidably arranged on the sliding cavity 16 through the guide rails 161 and can close the extending outlet 11. When the pulley 22 extends out of the extending outlet 11, the sliding cover 6 slides along the guide rail 16 to the side away from the extending outlet 11; when the pulley 22 is received in the housing 1, the sliding cover 6 slides along the guide rail 16 to the extending outlet 11. At this time, the roller shoes equipped with this pulley device can be used as ordinary shoes, preventing dust from entering the housing 1 and affecting the use.

[0045] Further, this embodiment further includes a top cover 7 detachably connected to the housing 1. The top cover 7 is used to open or close the first accommodating space 131 and the second accommodating space 132. The detachable top cover 7 facilitates the installation or replacement of the control mechanism 3 and the pulley set 2. The top cover 7 is a sliding cover or a flip cover. The matching structure between the sliding cover or the flip cover and the housing 1 is a conventional technical structure and will not be elaborated here.

[0046] The telescopic operation method of the pulley 22 of the pulley set 2 in this embodiment is as follows:

[0047] In the initial state, the sliding part of the positioning rod 41 is clamped and fitted on the reduced-diameter track 425. At this time, the roller 22 retracts into the housing 1 and is in the retracted working position. By pressing the button, the moving block 31 moves forward, driving the sliding part of the positioning rod 41 to move from the reduced-diameter track 425 along the first sliding track 423 to the guiding groove 426 on one side of the first sliding track 423. When the button is released, under the reset action of the elastic member 5, the sliding part of the positioning rod 41 falls from the guiding groove 426 on one side of the first sliding track 423 to the limiting groove 431 and is clamped at the limiting groove 431, completing the extension of the pulley 22 out of the outlet 11. At this time, it is in the telescopic working position. When the button is pressed again, the sliding part of the positioning rod 41 moves backward to the guiding groove 426 on one side of the second sliding track 424. When the button is released, under the reset action of the elastic member 5, the sliding part of the positioning rod 41 slides forward along the second sliding track 424 and is clamped on the bottom wall of the reduced-diameter track 425, completing the retraction of the pulley 22 into the housing 1 and returning to the initial state.

[0048] Embodiment 2: Refer to Figures 8 to 9

[0049] The difference between this embodiment and Embodiment 1 lies in:

[0050] The pulley 22 is set as a single wheel. When setting a single pulley 22, it is also possible to adopt the setting of the first accommodation space 131 on one side, that is, the first accommodation space 131 and the second accommodation space 132 are arranged side by side. Of course, this structure may cause uneven forces on both sides of the wheel axle 21, making the roller shoes equipped with this pulley device unstable during sliding. Therefore, we can also adopt the setting of 1 first accommodation space 131 for placing the roller 22, and two second accommodation spaces 132 are symmetrically arranged on both sides of the first accommodation space 131. The moving block 31 is in a frame structure and is sleeved outside the first accommodation space 131, and the two side walls are respectively located in the two second accommodation spaces 132.

[0051] Another difference also lies in that the positioning mechanism 4 includes a positioning rod 41 and a sliding track 42 for one end of the positioning rod 41 to slide. The sliding track 42 is arranged on the housing 1. One end of the positioning rod 41 is connected to the moving block 31, and the other end is slidably arranged in the sliding track 42. A second rotation hole 314 for the positioning rod 41 to be rotatably connected is arranged on the moving block 31. One end of the positioning rod 41 is rotatably arranged in the second rotation hole 314, so that the positioning rod 41 can slide in the sliding track 42 in a relatively swingable manner. The sliding track 42 has a first positioning point 421 for the moving block 31 to move so that the pulley set 2 retracts into the outlet 11 and a second positioning point 422 for the moving block 31 to move so that the pulley set 2 extends out of the outlet 11. The moving mode of the sliding part of the positioning rod 41 in the sliding track 42 is the same as that in Embodiment 1 and will not be elaborated here.

[0052] Embodiment 3: Refer to Figure 10

[0053] An inline skate shoe, comprising a shoe upper, a shoe sole and the pulley device in Embodiment 1 or Embodiment 2. The shoe upper is connected to the shoe sole, the pulley device is installed on the shoe sole, and an installation groove for placing the pulley device is provided on the front sole part and / or the rear heel part of the shoe sole. The pulley device is adaptively fixed in the installation groove, so that pulleys are provided at both the front and rear parts of the shoe sole, and the user can freely choose to walk flat-footed, slide with front and rear wheels or slide with rear wheels according to the actual situation.

[0054] The bottom surface of the housing 1 is on the same horizontal plane as the bottom surface of the shoe sole, and the pulley set 2 can protrude from the bottom surface of the shoe sole or retract into the shoe sole. When the pulley set 2 extends out of the outlet 11 of the housing 1, the inline skate shoe in this embodiment is used as a roller skate, and when the pulley set 2 retracts into the housing 1, the inline skate shoe in this embodiment is used as an ordinary shoe.

[0055] By adopting the foregoing design, the beneficial effects of the present utility model are as follows: The present utility model drives the moving block 31 to move through the control member, and drives the pulley set 2 to move in the sliding groove 311 and the communication groove 121, and extends / retracts from the outlet 11 to adjust the type of the shoe sole; or the positioning rod 41 slides in the sliding track 42 to the first positioning point 421, and at this time it is used as a flat shoe sole; or the positioning rod 41 slides in the sliding track 42 to the second positioning point 422, and at this time it is used as an inline skate shoe sole or a pulley shoe sole; the present utility model can switch between an inline skate shoe sole or a pulley shoe sole and a flat shoe sole, ensuring the stable position of the pulley set during use, safe use, and reliable and stable performance.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulley device, comprising a housing and a pulley block, wherein a downward side of the housing is provided with an extension opening for the pulley block to extend out of / retract into the housing, and the sliding direction of the pulley block is defined as a front-to-back direction, and characterized in that: It also includes a control mechanism for controlling the pulley block to extend / retract to the extension port, the shell is divided into a first accommodating space for accommodating the pulley block and a second accommodating space for accommodating the control mechanism by a baffle, the control mechanism includes a moving block arranged on the second accommodating space and a control member for controlling the moving block to move along the front-rear direction of the second accommodating space, the moving block is provided with a slide groove for sliding the pulley block along the axial direction of the pulley block, the baffle and / or the shell on the opposite side are both provided with a connecting groove opening downward and connected to the slide groove, the pulley block is horizontally arranged in the slide groove and the connecting groove and cooperates with the moving block through the connecting groove to control the pulley block to move in the slide groove and the connecting groove and extend / retract to the extension port.

2. A pulley device according to claim 1, characterized in that: It also includes a positioning mechanism, which includes a positioning rod and a sliding track for one end of the positioning rod to slide, the sliding track is arranged on the moving block, one end of the positioning rod is connected to the shell, and the other end is slidably arranged in the sliding track, and the sliding track has a first positioning point for the moving block to move to make the pulley group retract into the extension port and a second positioning point for the moving block to move to make the pulley group extend out of the extension port.

3. A pulley device according to claim 1, characterized in that: It also includes a positioning mechanism, which includes a positioning rod and a sliding track for one end of the positioning rod to slide, the sliding track is arranged on the shell, one end of the positioning rod is connected to the moving block, and the other end is slidably arranged in the sliding track, and the sliding track has a first positioning point for the moving block to move so that the pulley group retracts the extension port and a second positioning point for the moving block to move so that the pulley group extends out of the extension port.

4. A pulley device according to any one of claims 2 or 3, characterized in that: A limiting block is arranged in the sliding track, and a limiting groove is arranged on the limiting block for clamping one end of the positioning rod, the limiting groove is the second positioning point, and the end away from the limiting groove is the first positioning point. The sliding track is Y-shaped and includes a first sliding track, a second sliding track and the limiting groove which are interconnected.

5. A pulley device according to claim 4, characterized in that: The thickness of the limit block gradually increases from the first positioning point to the second positioning point, the side walls of the first sliding track and the side walls of the second sliding track are both guiding inclined surfaces, the limit groove is arc-shaped and forms guide surfaces on both sides, the outer groove wall of the first sliding track and the outer groove wall of the second sliding track are provided with two continuously arranged guide grooves corresponding to the positions of the two ends of the limit groove, the directions in which the two guide grooves are opened are opposite to the directions in which the limit grooves are opened, a V-shaped protrusion is formed between the two guide grooves, and the distance between the tip of the V-shaped protrusion and the second positioning point is smaller than the distance between the two ends of the limit groove and the second positioning point.

6. A pulley device according to claim 5, characterized in that: A reduced diameter track connected to the sliding track is extended from one end of the first sliding track and the second sliding track away from the limiting groove, the rod portion of the positioning rod is movably arranged on the reduced diameter track, and the bottom wall of the reduced diameter track is the first positioning point.

7. A pulley device according to claim 1, characterized in that: It also includes a rebound mechanism, which includes an elastic member for resetting the moving block. Both ends of the elastic member are respectively fixedly connected and cooperated with the moving block and the side wall of the shell, and can be deformed with the movement of the moving block.

8. A pulley device according to claim 1, characterized in that: The control member is a button arranged on the outside of the shell, a control rod is also arranged between the button and the moving block, a penetration groove for the control rod to pass through is arranged on the shell, one end of the control member is connected to the button in an integral or split manner, and the other end passes through the penetration groove and is connected to the moving block in an integral or split manner.

9. A pulley device according to claim 1, characterized in that: The slide groove is an inclined groove, which is arranged to be inclined upward from the rear end to the front end of the moving block. A first bottom surface and a second bottom surface are respectively arranged on the front and rear sides of the slide groove opening. The second bottom surface is higher than the first bottom surface. When the first bottom surface is abutted against the bottom surface of the shell, a gap is arranged between the second bottom surface and the bottom surface of the shell.

10. A running shoe, characterized in that: It comprises a shoe upper, a shoe sole and a pulley device, wherein the pulley device adopts a pulley device according to any one of claims 1 to 9, the pulley device is installed at the bottom of the shoe sole, and the bottom surface of the shell is on the same horizontal plane as the bottom surface of the shoe sole.

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