CN210175032U - Adaptive skating device for bicycle - Google Patents

Abstract

The utility model relates to a skating device specifically is a bicycle adaptation skating device, including back wheel carrier and leading truck, the back wheel carrier includes chassis and mounting bracket, mounting bracket sub-unit connection chassis, upper portion are used for the fixed connection bicycle, and the leading truck is installed in the front wheel lower part. The chassis is a rectangular frame consisting of at least two longitudinal connecting rods and at least two transverse connecting rods, and the front end and the rear end of each longitudinal connecting rod are respectively provided with a rear knife; mounting frames are respectively arranged on the left side and the right side of the underframe, mounting heads are arranged at the top ends of the mounting frames, and the device is mounted at the rear part of the bicycle through the mounting heads; the guide frame comprises a front knife and a wheel clamping piece, wherein the front knife is installed on the lower portion of the wheel clamping piece, and a hub fixing structure is arranged on the wheel clamping piece and used for fixing a hub. The device is as utilizing the auxiliary device that the bicycle was skating, can accomplish the installation under the condition of not doing other improvements to the bicycle, and can adjust according to the concrete size of bicycle, and the suitability is good, is provided with brake equipment moreover.

Description

Adaptive skating device for bicycle

Technical Field

The utility model relates to a skating device specifically is a bicycle adaptation skating device.

Background

In the north of China, particularly in the areas of Beijing, inner Mongolia, northern Shaanxi, northeast province and the like, when water surface is frozen whenever Siberian cold flows come, people begin to participate in one sport with northern characteristics in many times, namely skating, and in some universities, places are specially prepared for manufacturing ice yards, skating courses are set up, and it can be seen that the skating is a routine and popular fitness and entertainment sport in the north. At present, the main tool for skating in winter is the skates, which is a main and basically only tool in universities, and the skating is very dangerous for unskilled people when wearing the skates, so that falling injuries frequently occur. For the majority of people, the skating is not learned, or the body coordination is not good, so that the ice skate can not be used, and the ice skate can not participate in the sports. Because current ice surface coefficient of friction itself is little, no matter adult or child, all fall down easily, how to set up a skating device and can supply adult and child's sharing, this is a problem that remains to be solved, in addition, in winter, because the road surface is frozen, people's bicycle is idle at home, if reform transform the bicycle to supply people to skate and use, people may take the time to carry out outdoor activities more pleasantly then. Therefore, it is a technical challenge to provide an auxiliary device that fits onto a bicycle, temporarily changing the bicycle into a skating device without any other modification of the bicycle. In addition, the bicycle size differs, how to realize the adaptation problem of device, how to realize the braking of device again, and these are the key technical problem that also need to consider, also are the utility model discloses a research object.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bicycle adaptation skating device, the device can the direct mount on the bicycle, obtain the skating device through the repacking bicycle temporarily, and the device size is adjustable, can be applicable to the bicycle of multiple size, and the device still is provided with brake equipment in addition, and the user can control the speed of sliding at any time, and the security is high.

In order to achieve the above object, the utility model adopts the following scheme: the utility model provides a bicycle adaptation skating device, includes rear wheel frame and leading truck, and the rear wheel frame includes chassis and mounting bracket, the mounting bracket sub-unit connection chassis, upper portion are used for fixed connection bicycle, and the leading truck is installed in the front wheel lower part. The chassis is a rectangular frame consisting of at least two longitudinal connecting rods and at least two transverse connecting rods, and the front end and the rear end of each longitudinal connecting rod are respectively provided with a rear knife; mounting frames are respectively arranged on the left side and the right side of the underframe, mounting heads are arranged at the top ends of the mounting frames, side support shafts and middle support shafts are arranged at the lower parts of the mounting heads, and the device is mounted at the rear part of the bicycle through the mounting heads; the guide frame comprises a front cutter and a wheel clamping piece, wherein the front cutter is arranged on the lower portion of the wheel clamping piece, a hub fixing structure is arranged on the wheel clamping piece and used for fixing a hub, and the front cutter is attached to an ice surface in a sliding state so that the front wheel can be prevented from rotating.

In the technical scheme, the rear wheel frame is arranged at the position of the rear wheel of the bicycle and serves as a bracket of the bicycle, so that the bicycle is prevented from tilting, the rear wheel of the bicycle contacts the ice surface and serves as a driving part of skating, and therefore the bicycle can slide on the ice in a riding mode after the device is arranged; the guide frame installed on the front wheel can be used for controlling the driving direction, so that the device is more perfect and more meets the practical use requirement.

Preferably, a brake device is arranged on the front side of the underframe, the brake device comprises a latch for abutting against an ice surface, a sliding shaft is arranged at the upper end of the latch, and the sliding shaft is arranged in the guide shaft sleeve; the brake device also comprises a control device for controlling the sliding shaft to lift, and the latch can be enabled to be abutted against the ice surface or separated from the ice surface through the control device. Because the ice surface friction coefficient is small, the bicycle can not brake well by the self-provided brake, but the situation that the brake is needed is inevitable in the skating process, the arranged brake device can reduce the running speed by the fact that the latch is abutted against the ice surface, the brake is rapidly realized, and the occurrence of collision accidents in the skating process is favorably avoided.

Preferably, the control device for controlling the lifting of the sliding shaft comprises a contact wheel, the contact wheel is installed at the top end of the wheel frame and is in contact with the rear wheel of the bicycle, and a plurality of grooves are uniformly formed in the circumferential surface of the contact wheel; an arc-shaped pressure lever is arranged below the contact wheel and can be rotatably arranged on the wheel carrier, the top end of the pressure lever touches the circumference of the contact wheel, and the pressure lever can be clamped in the groove; the top end of the sliding shaft is provided with a lantern ring, and the lower part of the pressure lever penetrates through the lantern ring. The brake device is controlled by a rear wheel of the bicycle, the rear wheel rotates along with the pointer in the traveling process of the bicycle, the contact wheel in contact with the rear wheel rotates anticlockwise, the rotating contact wheel can continuously touch the top of the arc-shaped pressure rod, so that the arc-shaped pressure rod quickly collides with the edge of the groove, in the process, the tail end of the arc-shaped pressure rod is in an upwarping state, the sliding shaft is lifted, the latch leaves away from the ice surface, when the rear wheel rotates slowly, the top end of the arc-shaped pressure rod is intermittently clamped into the groove, and the latch also intermittently abuts against the ice surface to play a role in reducing the speed; when people brake the rear wheel by using the brake, the contact wheel stops rotating, the top end of the arc-shaped pressure rod is clamped into the groove, at the moment, the tail end of the arc-shaped pressure rod is in a pressing state, the sliding shaft slides downwards, the clamping teeth are abutted against the ice surface, and the sliding speed can be rapidly reduced. By using the control device, the brake is skillfully braked by means of the motion state of the rear wheel without too many structures, so that the device is convenient to disassemble and assemble.

Preferably, the guide shaft sleeve is arranged obliquely, the lower end of the guide shaft sleeve points to the rear lower side, and the tooth tip of the latch points to the front lower side. The bicycle slides forwards, when the latch props against the ice surface, the force given to the latch by the ice surface is deviated to the rear lower part, and the latch arranged obliquely can avoid the upward deviation of the tooth tip, is favorable for the latch to penetrate downwards and can strengthen the braking effect.

Preferably, a supporting plate is arranged behind the latch, and the latch is attached to the supporting plate in the up-and-down moving process. When the latch is abutted against the ice surface, a large reaction force can be applied, and the latch or the sliding shaft can be prevented from being bent by the supporting plate.

Preferably, a cleaning device is arranged at the rear part of the device, the cleaning device comprises a semicircular clamping brush clamped on the periphery of the wheel and a rolling brush in rolling contact with the wheel, the clamping brush is arranged on a lower bracket, the upper end of the lower bracket is hinged with an upper bracket, the lower bracket pulls the upper bracket through a spring to enable the upper bracket to incline towards the wheel, and the rolling brush is arranged at the top of the upper bracket; the clamping brush is arranged on the lower bracket through the sliding positioning sleeve and can be positioned on the lower bracket in a sliding manner; a baffle is arranged at the lower part of the clamping brush; the whole cleaning device is arranged on the transverse connecting rod at the rear part of the underframe through a single positioning connecting sleeve. Because the control of the brake device depends on the friction between the rear wheel and the contact wheel to drive the contact wheel to rotate or control the contact wheel to stop, the rear wheel needs to have enough friction coefficient. And at the skating in-process, the outside garrulous ice bits of tire that can the adhesion of rear wheel, block brush among the cleaning device card in the tire outside, can clear up the ice bits of adhesion on the tire surface, the round brush that sets up then can detach the ice bits that mix with in the tire anti-skidding line to guarantee that the position of wheel and contact wheel contact does not have too much ice bits, improve frictional force.

Preferably, the longitudinal connecting rod and the transverse connecting rod in the underframe are connected through a right-angle positioning connecting sleeve, and the right-angle positioning connecting sleeve is provided with mutually vertical positioning insertion holes for the insertion of the connecting rods; the lower ends of the side supporting shafts are respectively hinged with corresponding right-angle positioning connecting sleeves, the middle connecting rod is arranged in the middle of the longitudinal connecting rod, and the lower end of the middle supporting shaft is connected with the middle connecting rod through the hinged single-positioning connecting sleeves; the rear knife on the mounting rack is installed on the longitudinal connecting rod through a single positioning connecting sleeve or is directly installed on a corresponding right-angle positioning connecting sleeve. The distance between the two mounting frames and the ground clearance of the mounting head can be adjusted according to the specific size of the bicycle, so that the device is suitable for bicycles with various sizes, and the application range of the device is enlarged.

Preferably, the mounting head comprises a connecting plate, the middle part of the connecting plate is provided with an axle hole, two sides of the connecting plate are provided with inserting bolts, and the top ends of the side supporting shafts are provided with shaft sleeves matched with the inserting bolts; a cover plate is hinged at the top of the middle support shaft, a screw hole corresponding to the inserting bolt is arranged on the cover plate, and the inserting bolt passes through the shaft sleeve and the screw hole in sequence and is fixed by a nut; after the bicycle axle passes through the axle shaft hole, it is fixed by another nut. This structure can be installed on the bicycle under the condition of doing the minimum dismantlement to the bicycle, and convenient to use alone can accomplish whole dismantlement process.

Preferably, a pair of right angle positioning connecting sleeves is symmetrically arranged at the front parts of the two longitudinal connecting rods of the underframe, the rear knife at the front part of the underframe is arranged at the lower part of the corresponding right angle positioning connecting sleeve, a supporting rod is arranged between the two right angle positioning connecting sleeves, and the brake device is arranged on the supporting rod. The bicycle of unidimensional, the wheel diameter is different, through bracing piece and right angle location adapter sleeve installation brake equipment, can adjust brake equipment's front and back position according to particular case to and with the wheel contact dynamics, thereby guarantee brake equipment's good performance.

Preferably, the wheel hub fixing structure arranged on the wheel clamping piece comprises a clamping groove formed in the top surface of the wheel clamping piece and a pair of inner liner strips arranged on the inner side of the clamping groove, screw holes are formed in two side walls of the wheel clamping piece and provided with screws, positioning holes are formed in the inner liner strips, and the screws penetrate through the screw holes and then are inserted into the positioning holes. The front wheel card is in the draw-in groove, and the inside lining strip presss from both sides in the wheel hub both sides, is used for avoiding the screw directly to push up and touches the tire on the one hand, and on the other hand can strengthen the stability of wheel fastener.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a planar structure of the embodiment of the present invention installed on a bicycle.

Fig. 2 is a schematic view of a three-dimensional structure of the embodiment of the present invention installed on a bicycle.

Fig. 3 is a schematic structural diagram of the rear wheel frame in the embodiment of the present invention.

Fig. 4 is a schematic view of an installation structure of a single-sided mounting bracket in a rear wheel frame according to an embodiment of the present invention.

Fig. 5 is a schematic view of a split structure of a single-sided mounting rack in an embodiment of the present invention.

Fig. 6 is a schematic perspective view of a brake device according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a state of the brake device in the wheel rotating process according to the embodiment of the present invention.

Fig. 8 is a schematic view of the brake device in the stopped state of the wheel according to the embodiment of the present invention.

Fig. 9 is a schematic front side three-dimensional structure diagram of the cleaning device in the embodiment of the present invention.

Fig. 10 is a schematic diagram of a rear side three-dimensional structure of a cleaning device according to an embodiment of the present invention.

Fig. 11 is a schematic plan structure view of the guide frame in the embodiment of the present invention.

Fig. 12 is a schematic view of a split structure of the guide frame in the embodiment of the present invention.

In the figure, a bicycle 1, a rear wheel frame 2, a guide frame 3, a brake device 4, a cleaning device 5, a bottom frame 21, a mounting frame 22, a rear cutter 23, a front cutter 31, a wheel clamping piece 32, a support rod 41, a contact wheel 42, a wheel frame 43, a pressure rod 44, a sliding shaft 45, a clamping tooth 46, a guide shaft sleeve 47, a support plate 48, a clamping brush 51, a rolling brush 52, a lower frame 53, an upper frame 54, a spring 55, a baffle plate 56, a sliding positioning sleeve 57, a longitudinal connecting rod 201, a middle connecting rod 202, a transverse connecting rod 203, a right-angle positioning connecting sleeve 204, a single positioning connecting sleeve 205, a side support shaft 221, a middle support shaft 222, a mounting head 223, a connecting plate 231, a covering plate 232, an inserting bolt 233, a shaft sleeve 234, an axle shaft hole 235, a nut 236, a screw hole 237, a clamping groove 321, a screw hole 322.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1 to 12, an embodiment of the present invention provides a bicycle adaptive skating device, including a rear wheel frame 2 and a guide frame 3, wherein the rear wheel frame 2 includes a bottom frame 21 and a pair of symmetrically arranged mounting frames 22, the mounting frame is composed of two side supporting shafts 221 and a middle supporting shaft 222, and mounting heads 223 are arranged at the tops of the three supporting shafts; the underframe 21 consists of two longitudinal connecting rods 201 and two transverse connecting rods 203, the longitudinal connecting rods 201 and the transverse connecting rods 203 are connected through a right-angle positioning connecting sleeve 204, and the right-angle positioning connecting sleeve 204 is provided with mutually vertical positioning insertion holes for the insertion of the connecting rods; the lower ends of the side supporting shafts 221 are respectively hinged with corresponding right-angle positioning connecting sleeves 204, the middle connecting rod 202 is arranged in the middle of the longitudinal connecting rod 201, and the lower end of the middle supporting shaft 222 is connected with the middle connecting rod 202 through a hinged single positioning connecting sleeve 205; the rear knife 23 is installed at the rear part of the two longitudinal links 201 through a single positioning connecting sleeve 205, the right angle positioning connecting sleeve 204 is independently installed at the front part of the longitudinal links, the rear knife 23 is installed at the lower part of the corresponding right angle positioning connecting sleeve 204, the supporting rod 41 is inserted between the two independent right angle positioning connecting sleeves 204, and the brake device 4 in the embodiment is installed on the supporting rod 41.

The guide frame 3 is arranged at the lower part of the front wheel and comprises a front knife 31 and a wheel clamping piece 32, wherein the front knife 31 is arranged at the lower part of the wheel clamping piece 32, a clamping groove 321 is formed in the top surface of the wheel clamping piece 32, a pair of lining strips 324 are arranged on the inner side of the clamping groove 321, screw holes 322 are formed in two side walls of the wheel clamping piece 32 and are provided with screws 323, a positioning hole 325 is formed in each lining strip 324, and the screws 323 penetrate through the screw holes 322 and are inserted into the positioning holes 325. The front wheel is clamped in the clamping groove 321, and the inner lining strips 324 are clamped on two sides of the hub, so that on one hand, the screws are prevented from directly abutting against the tire, and on the other hand, the stability of the wheel clamping piece 32 can be enhanced.

In this example, the rear wheel frame 2 is connected and installed on the wheel axle of the rear wheel of the bicycle and serves as a bracket of the bicycle, so that the bicycle 1 is prevented from tilting, the rear wheel of the bicycle contacts the ice surface and serves as a driving part of skating, and therefore the device can slide on the ice in a riding mode after being installed; the leading truck 3 of installation at the front wheel then can be used for controlling the direction of travel, and this makes the device more perfect, more accords with the actual user demand. The rear wheel frame in this embodiment adopts a movably positioned connection manner, and the distance between the two mounting frames 22 and the ground clearance of the mounting head 223 can be adjusted according to the specific size of the bicycle, so that the device can be applied to bicycles with various sizes, and the application range of the device is increased.

The brake device 4 used in the embodiment comprises a latch 46 used for abutting against the ice surface, the upper end of the latch is provided with a sliding shaft 45, the middle part of a support rod 41 is provided with a guide shaft sleeve 47, and the sliding shaft 45 is arranged in the guide shaft sleeve 47; the braking device 4 further comprises a control device for controlling the sliding shaft 45 to move up and down, which mainly comprises a contact wheel 42, the contact wheel 42 is installed on the top end of the wheel frame 43 and contacts with the rear wheel of the bicycle, wherein the wheel frame 43 is fixedly arranged on the supporting rod 41. A plurality of grooves 421 are uniformly arranged on the circumferential surface of the contact wheel 42; an arc-shaped pressure lever 44 is rotatably mounted on the wheel frame 43 below the contact wheel 42, and the rotation axis of the pressure lever 44 is located at the upper half. The top end of the pressure lever 44 touches the circumference of the contact wheel 42, and the pressure lever 44 can be clamped in the groove 421; the rear wheel rotates the in-process at a certain angular velocity, and contact wheel 42 rotates with higher angular velocity thereupon, and the upper end of depression bar 44 can continue to be strikeed by recess 421 edges this moment, and then makes in depression bar 44 top can not get into recess 421, and the left end of depression bar is in the upwarping state this moment, and when the rear wheel did not rotate, contact wheel 42 stall, in depression bar 44 top card entered recess 421, the left end of depression bar was in the state of pushing down this moment. A collar is provided on the top end of the sliding shaft 45, through which the lower portion of the pressing rod 44 passes. The brake device 4 is controlled by the rear wheel of the bicycle, in the running process of the bicycle, the rear wheel rotates along the pointer, the contact wheel 42 contacted with the rear wheel rotates anticlockwise, the rotating contact wheel 42 can continuously contact the top of the arc-shaped pressure rod 44, so that the arc-shaped pressure rod 44 quickly collides with the edge of the groove 421, in the process, the tail end of the arc-shaped pressure rod 44 is in an upwarping state, the sliding shaft 45 is lifted, the latch 46 leaves the ice surface, when the rear wheel rotates slowly, the top end of the arc-shaped pressure rod 44 is intermittently clamped into the groove 421, and the latch 46 intermittently abuts against the ice surface, so that the speed reduction effect is achieved; when people brake the rear wheel by using the brake, the contact wheel 4 stops rotating, the top end of the arc-shaped pressure lever 44 is clamped into the groove 421, at the moment, the tail end of the arc-shaped pressure lever 44 is in a pressing-down state, the sliding shaft 45 slides downwards, the latch 46 is abutted against the ice surface, and the sliding speed is rapidly reduced at the moment. By using the control device, the brake is skillfully braked by means of the motion state of the rear wheel without too many structures, so that the device is convenient to disassemble and assemble.

In addition, the guide sleeve 47 is disposed obliquely, and the lower end thereof is directed rearward and downward, and the tip of the latch 46 is directed forward and downward. When the bicycle slides forwards and the latch 46 is abutted against the ice surface, the force of the ice surface to the latch 46 is deflected to the rear lower part, and the obliquely arranged latch 46 can avoid the upward deflection of the tooth tip, is beneficial to the downward penetration of the latch 46 and can enhance the braking effect.

In order to increase the overall strength of the latch 46, a support plate 48 is arranged behind the latch 46, and the latch 46 is attached to the support plate 48 in the up-and-down moving process. The latch 46 is subjected to a large reaction force when it abuts against the ice surface, and the support plate 48 is provided to prevent the latch 46 or the slide shaft 45 from being bent.

The brake device used in the embodiment controls the contact wheel 42 to rotate or controls the contact wheel 42 to stop by means of friction between the rear wheel and the contact wheel 42, so that the rear wheel needs to have a sufficient friction coefficient and broken ice chips are adhered to the outside of the tire of the rear wheel during skating. Therefore, the rear part of the device is provided with a cleaning device 5 which comprises a semi-annular clamping brush 51 clamped on the periphery of a wheel and a rolling brush 52 in rolling contact with the wheel, wherein the clamping brush 51 is arranged on a lower bracket 53, the upper end of the lower bracket 53 is hinged with an upper bracket 54, the lower bracket 53 pulls the upper bracket 54 through a spring 55 to enable the upper bracket 54 to incline towards the wheel, the rolling brush 52 is arranged on the top of the upper bracket 54, and after the cleaning device is arranged, the rolling brush 52 can automatically contact with the rear wheel; the clamping brush 51 is arranged on the lower bracket 52 through a sliding positioning sleeve 57 and can be positioned on the lower bracket 53 in a sliding manner, and the distance between the clamping brush 51 and the wheel and the cleaning force of the brush on the tire can be adjusted by adjusting the position of the sliding positioning sleeve 57; a baffle plate 56 is arranged at the lower part of the clamping brush 51, and ice scraps thrown by the wheels cannot fall onto the spring 55 and the hinged part of the upper bracket 54 and the lower bracket 53 under the action of the baffle plate 56. The entire cleaning device 5 is mounted on the cross link 203 at the rear of the undercarriage 21 by a single location connection sleeve 205. The block brush 51 among cleaning device 5 is in the tire outside, can clear up the adhesion and fall the ice bits on the tire surface, and the round brush 52 that sets up then can detach the ice bits that mix with in the tire anti-skidding line to guarantee that the position of wheel and contact wheel 42 contact does not have too much ice bits, improve frictional force.

The rear wheel frame 2 is connected with a rear wheel axle of the bicycle 1 through a mounting head 223, is a key connecting component and comprises a connecting plate 231, an axle hole 235 is arranged in the middle of the connecting plate 231, inserting bolts 233 are arranged on two sides of the connecting plate, and a shaft sleeve 234 matched with the inserting bolts 233 is arranged at the top end of the side supporting shaft 221; a cover plate 232 is hinged at the top of the middle support shaft 222, a screw hole 237 corresponding to the inserting bolt 233 is arranged on the cover plate 232, and the inserting bolt 233 passes through the shaft sleeve 234 and the screw hole 237 in sequence and then is fixed by a nut 236; after the bicycle axle passes through the axle shaft hole 235, it is secured by an additional nut 236. This structure can be installed on the bicycle under the condition of doing the minimum dismantlement to the bicycle, and convenient to use alone can accomplish whole dismantlement process.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (10)

1. The utility model provides a bicycle adaptation skating device, includes rear wheel frame and leading truck, and the rear wheel frame includes chassis and mounting bracket, mounting bracket sub-unit connection chassis, upper portion are used for the fixed connection bicycle, and the leading truck is installed in the front wheel lower part, its characterized in that: the chassis is a rectangular frame consisting of at least two longitudinal connecting rods and at least two transverse connecting rods, and the front end and the rear end of each longitudinal connecting rod are respectively provided with a rear knife; mounting frames are respectively arranged on the left side and the right side of the underframe, mounting heads are arranged at the top ends of the mounting frames, side support shafts and middle support shafts are arranged at the lower parts of the mounting heads, and the device is mounted at the rear part of the bicycle through the mounting heads; the guide frame comprises a front cutter and a wheel clamping piece, wherein the front cutter is arranged on the lower portion of the wheel clamping piece, a hub fixing structure is arranged on the wheel clamping piece and used for fixing a hub, and the front cutter is attached to an ice surface in a sliding state so that the front wheel can be prevented from rotating.

2. A bicycle adaptable skating device as claimed in claim 1, wherein: a brake device is arranged on the front side of the underframe and comprises a latch for abutting against an ice surface, and a sliding shaft is arranged at the upper end of the latch and is arranged in a guide shaft sleeve; the brake device also comprises a control device for controlling the sliding shaft to lift, and the latch can be enabled to be abutted against the ice surface or separated from the ice surface through the control device.

3. A bicycle adaptable skating device as claimed in claim 2, wherein: the control device for controlling the lifting of the sliding shaft comprises a contact wheel, the contact wheel is arranged at the top end of the wheel frame and is in contact with the rear wheel of the bicycle, and a plurality of grooves are uniformly formed in the circumferential surface of the contact wheel; an arc-shaped pressure lever is arranged below the contact wheel and can be rotatably arranged on the wheel carrier, the top end of the pressure lever touches the circumference of the contact wheel, and the pressure lever can be clamped in the groove; the top end of the sliding shaft is provided with a lantern ring, and the lower part of the pressure lever penetrates through the lantern ring.

4. A bicycle adaptable skating device as claimed in claim 3, wherein: the guide shaft sleeve is obliquely arranged, the lower end of the guide shaft sleeve points to the rear lower side, and the tooth tip of the clamping tooth points to the front lower side.

5. A bicycle adaptable skating device as claimed in claim 4, wherein: a supporting plate is arranged behind the latch, and the latch is attached to the supporting plate in the up-and-down moving process.

6. A bicycle adaptable skating device as claimed in claim 3, wherein: the rear part of the device is provided with a cleaning device, the cleaning device comprises a semicircular clamping brush clamped on the periphery of a wheel and a rolling brush in rolling contact with the wheel, wherein the clamping brush is arranged on a lower bracket, the upper end of the lower bracket is hinged with an upper bracket, the lower bracket pulls the upper bracket through a spring to enable the upper bracket to incline towards the wheel, and the rolling brush is arranged at the top of the upper bracket; the clamping brush is arranged on the lower bracket through the sliding positioning sleeve and can be positioned on the lower bracket in a sliding manner; a baffle is arranged at the lower part of the clamping brush; the whole cleaning device is arranged on the transverse connecting rod at the rear part of the underframe through a single positioning connecting sleeve.

7. A bicycle adaptable skating device as claimed in claim 2, wherein: the longitudinal connecting rod and the transverse connecting rod in the underframe are connected through a right-angle positioning connecting sleeve, and the right-angle positioning connecting sleeve is provided with mutually vertical positioning insertion holes for the insertion of the connecting rods; the lower ends of the side supporting shafts are respectively hinged with corresponding right-angle positioning connecting sleeves, the middle connecting rod is arranged in the middle of the longitudinal connecting rod, and the lower end of the middle supporting shaft is connected with the middle connecting rod through the hinged single-positioning connecting sleeves; the rear knife on the mounting rack is installed on the longitudinal connecting rod through a single positioning connecting sleeve or is directly installed on a corresponding right-angle positioning connecting sleeve.

8. A bicycle adaptable skating device as claimed in claim 7, wherein: the mounting head comprises a connecting plate, the middle part of the connecting plate is provided with an axle hole, two sides of the connecting plate are provided with inserting bolts, and the top ends of the side supporting axles are provided with shaft sleeves matched with the inserting bolts; a cover plate is hinged at the top of the middle support shaft, a screw hole corresponding to the inserting bolt is arranged on the cover plate, and the inserting bolt passes through the shaft sleeve and the screw hole in sequence and is fixed by a nut; after the bicycle axle passes through the axle shaft hole, it is fixed by another nut.

9. A bicycle adaptable skating device as claimed in claim 7, wherein: the front parts of two longitudinal connecting rods of the underframe are symmetrically provided with a pair of right angle positioning connecting sleeves, the rear knife at the front part of the underframe is arranged at the lower part of the corresponding right angle positioning connecting sleeve, a supporting rod is arranged between the two right angle positioning connecting sleeves, and the brake device is arranged on the supporting rod.

10. A bicycle adaptable skating device as claimed in any one of claims 1 to 9, wherein: the wheel hub fixing structure arranged on the wheel clamping piece comprises a clamping groove formed in the top surface of the wheel clamping piece and a pair of lining strips arranged on the inner side of the clamping groove, screw holes are formed in two side walls of the wheel clamping piece and provided with screws, positioning holes are formed in the lining strips, and the screws penetrate through the screw holes and then are inserted into the positioning holes.

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