CN217139084U

CN217139084U - Adjustable liquid resistance device and bicycle trainer

Info

Publication number: CN217139084U
Application number: CN202123443726.7U
Authority: CN
Inventors: 何定; 刘治; 王凌海; 陈阳
Original assignee: Shenzhen Qianan Technology Co ltd
Current assignee: Shenzhen Qianan Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-09
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses an adjustable liquid hinders device and bicycle training ware, adjustable liquid hinders the device and includes: the transmission assembly and the liquid resistance assembly. The liquid resistance assembly comprises: the adjusting device comprises an outer shell part, an inner shell part, a rotating part and an adjusting part. The shell part is positioned at one end of the transmission assembly and forms a closed first oil cavity; the inner shell is positioned in the first oil cavity, the opening of the inner shell faces the transmission assembly and forms a second oil cavity, a first opening is formed above the inner shell, a second opening is formed below the side of the inner shell, and the first opening and the second opening are communicated with the first oil cavity and the second oil cavity; the rotating piece is positioned in the second oil cavity and is magnetically connected with the transmission assembly; the adjusting piece is internally provided with a magnetic attracting piece and is arranged on the second opening and the outer wall of the shell piece. The problem of current liquid resistance device can not adjust power in the operation process is solved.

Description

Adjustable liquid resistance device and bicycle trainer

Technical Field

The utility model belongs to the technical field of bicycle training ware technique and specifically relates to a what relate to is an adjustable liquid hinders device and bicycle training ware.

Background

In recent years, sports items become more and more popular, bicycling becomes more popular, and a bicycle trainer used for indoor static riding training has become an indispensable training instrument for bicycling lovers and bicyclists.

The existing damping device for the bicycle trainer is generally divided into two forms of magnetic resistance and liquid resistance, the magnetic resistance device can completely realize power adjustment in the operation process, the power of the liquid resistance device in the operation process is usually set in advance and cannot be adjusted in the operation process, great inconvenience is brought to trainers who need to use liquid resistance devices with different powers in the training process, and the problem that how to enable the liquid resistance device to realize power adjustment in the operation process is needed to be solved at present.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned prior art not enough, the utility model aims to provide an adjustable liquid hinders device and bicycle training ware has solved the problem that current liquid hinders the device and can not adjust power at the operation in-process.

The technical scheme of the utility model as follows:

an adjustable hydraulic resistance device comprising:

a transmission assembly;

a hydraulic resistance assembly, the hydraulic resistance assembly comprising:

the shell piece is positioned at one end of the transmission assembly and forms a closed first oil cavity;

the inner shell piece is positioned in the first oil cavity, an opening of the inner shell piece faces the transmission assembly and forms a second oil cavity, a first opening is formed above the inner shell piece, a second opening is formed below the side of the inner shell piece, and the first opening and the second opening are communicated with the first oil cavity and the second oil cavity;

the rotating piece is positioned in the second oil cavity and is magnetically connected with the transmission assembly;

and the adjusting piece is internally provided with a magnetic attracting piece and is arranged on the second opening and the outer wall of the shell piece.

Further, piece is inhaled to magnetism includes: a first magnetic member and a second magnetic member;

the adjusting member includes:

one end of the rotating shifting piece is rotatably connected to the central position of the shell piece, the other end of the rotating shifting piece is provided with a first round hole, and the first magnetic piece is arranged in the first round hole;

the driven shifting piece is parallel to the rotating shifting piece, one end of the driven shifting piece is rotatably connected to the central position of the inner shell piece, the other end of the driven shifting piece is provided with a second round hole, the second magnetic piece is arranged in the second round hole, and the driven shifting piece can completely cover the second opening.

Furthermore, a linkage rotating shaft piece is connected to the side face of the driven shifting piece, the linkage rotating shaft piece is located at the center position far away from the inner shell piece, and the linkage rotating shaft piece can completely cover the first opening.

Further, the liquid resistance assembly further comprises:

the resin plate is arranged between the rotating piece and the transmission assembly and seals the first oil cavity with the shell piece.

Further, the liquid resistance assembly further comprises:

and the sealing ring is arranged between the resin plate and the outer shell part and is used for sealing the first oil cavity.

Further, the rotation member includes:

the aluminum disc is positioned on one side, away from the transmission assembly, of the resin plate, and a first central shaft is arranged on the aluminum disc and faces the first oil cavity;

and the rotating impeller is sleeved on the first central shaft.

Further, the transmission assembly includes:

a second central shaft;

the strong magnetic piece is positioned on one end, facing the liquid resistance assembly, of the second central shaft;

the heat dissipation piece is arranged on the second central shaft next to the strong magnetic piece and deviates from the liquid resistance assembly;

an inertial flywheel located on an end of the second central shaft facing away from the hydraulic resistance assembly;

and the friction shaft is sleeved on the second central shaft and used for abutting against the power source.

Further, the strong magnetic member includes:

the magnet seat penetrates through the tail end of the second central shaft, and a plurality of third round holes are uniformly formed in the magnet seat along the circumferential direction on one side, facing the liquid resistance assembly, of the magnet seat;

and the magnets are respectively arranged in the third round holes.

Further, the heat sink includes:

the heat radiation fan penetrates through the second central shaft and is connected to the magnet seat;

a fan housing that is fitted over the heat dissipation fan and is connected to the resin board;

and the limiting sleeve is arranged on one side of the fan shell, which is deviated from the liquid resistance assembly, and is used for fixing the position of the fan shell.

Based on the same conception, the utility model also provides a bicycle trainer, which comprises the adjustable liquid resistance device;

a mount assembly, the mount assembly comprising: the hydraulic resistance adjusting device comprises a first support, a second support, a third cross frame and a second fixing seat, wherein the first support and the second support are arranged at two ends of the third cross frame respectively, the second fixing seat is installed on the third cross frame, an adjustable hydraulic resistance device is connected to the second fixing seat, a bicycle wheel is arranged between the first support and the second support, and the bicycle wheel is abutted to the transmission assembly.

The beneficial effect of this scheme: the utility model provides an adjustable liquid hinders device and bicycle training ware, through setting up the liquid hinders the subassembly and includes: an outer housing member, an inner housing member, a rotatable member, and an adjustment member. And the outer shell member is arranged at one end of the transmission assembly and forms a first closed oil cavity. Set up interior shell spare is located in the first fluid cavity, make interior shell spare opening orientation transmission assembly to form second fluid cavity, interior shell spare top is provided with first opening, interior shell spare side below is provided with the second opening, first opening with the second opening all communicates first fluid cavity with second fluid cavity, and set up rotate the piece and be located second fluid cavity to make its magnetism connect in transmission assembly, and be provided with magnetism in the regulating part and inhale the piece, and set up it on the second opening with on the outer wall of shell spare. The power is adjusted through the adjusting piece, and the magnetic absorbing piece is arranged in the adjusting piece, so that the resistance adjustment is realized under the condition that the sealing of the device is not influenced. When the adjusting piece is rotated to the minimum, oil in the second oil cavity is reduced, the resistance to the rotating piece is reduced, and the power of the hydraulic resistance assembly is further reduced; when the adjusting piece rotates to the maximum, oil in the second oil cavity is increased, the resistance of the rotating piece is increased to the maximum, the power of the hydraulic resistance assembly is further increased, and the problem that the power of the existing hydraulic resistance device cannot be adjusted in the operation process is solved.

Drawings

FIG. 1 is a schematic structural view of an inner housing member and an adjusting member of an embodiment of an adjustable hydraulic resistance device and a bicycle trainer according to the present invention;

FIG. 2 is an exploded view of the inner and outer housing members and the adjusting member of an embodiment of the adjustable hydraulic resistance device and bicycle trainer of the present invention;

FIG. 3 is a schematic structural view of the inner housing member and the driven paddle of the embodiment of the adjustable hydraulic resistance device and the bicycle trainer according to the present invention;

FIG. 4 is an exploded view of an adjustable hydraulic resistance device and bicycle trainer in accordance with an embodiment of the present invention;

FIG. 5 is a side view of an outer housing member for an embodiment of an adjustable hydraulic resistance device and bicycle trainer in accordance with the present invention;

FIG. 6 is a cross-sectional view of an adjustable hydraulic resistance device and a bicycle trainer in accordance with an embodiment of the present invention;

fig. 7 is a schematic structural view of a bicycle trainer according to an embodiment of the present invention.

The reference numbers in the figures: 100. a transmission assembly; 110. a second central axis; 120. a ferromagnetic member; 121. a magnet base; 122. a third circular hole; 123. a magnet; 124. a fifth through hole; 130. a heat sink; 131. a heat radiation fan; 132. a third through hole; 133. a fan housing; 134. a fourth via hole; 135. a limiting sleeve; 140. an inertial flywheel; 150. a friction shaft; 151. a third bearing; 152. a fourth bearing; 160. a first fixed seat; 161. adjusting the top shaft; 162. a plastic cover; 200. a liquid resistance component; 210. a housing member; 211. a first oil cavity; 212. a first counterbore; 213. a limiting strip; 220. an inner housing member; 221. a second oil cavity; 222. a first opening; 223. a second opening; 230. a rotating member; 231. an aluminum tray; 232. rotating the impeller; 233. a first central shaft; 234. a first bushing; 235. a first bearing; 236. a second bearing; 237. a second through hole; 240. an adjustment member; 241. a magnetic member; 242. a first magnetic member; 243. a second magnetic member; 244. rotating the shifting sheet; 245. a first circular hole; 246. a driven plectrum; 247. a second circular hole; 248. a linkage rotating shaft sheet; 250. a resin plate; 251. a first through hole; 260. a seal ring; 310. a first bracket; 320. a second bracket; 330. a third cross frame; 331. a second fixed seat.

Detailed Description

The utility model provides an adjustable liquid hinders device and bicycle training ware, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The first embodiment is as follows:

as shown in fig. 1, 2 and 4, the present invention provides a bicycle trainer resistance device, which is placed on a horizontal surface, for example, with the vertical upward direction being upward and the vertical downward direction being downward, and facing inward toward the inside of the bicycle trainer resistance device and facing outward toward the outside of the bicycle trainer resistance device. The bicycle trainer resistance device comprises: a transmission assembly 100 and a hydraulic resistance assembly 200. The liquid resistance assembly 200 comprises: an outer housing member 210, an inner housing member 220, a rotation member 230, and an adjustment member 240. The housing member 210 is located at one end of the transmission assembly 100 and forms a closed first oil chamber 211. The inner shell 220 is located in the first oil cavity 211, an opening of the inner shell 220 faces the transmission assembly 100 and forms a second oil cavity 221, a first opening 222 is arranged above the inner shell 220, a second opening 223 is arranged below the side of the inner shell 220, and the first opening 222 and the second opening 223 are communicated with the first oil cavity 211 and the second oil cavity 221 (as shown in fig. 6). The rotor 230 is located in the second oil chamber 221 and magnetically connected to the transmission assembly 100. The adjusting member 240 has a magnetic member 241 therein and is disposed on the second opening 223 and the outer wall of the housing member 210.

It can be understood that the power is adjusted through the adjusting member 240, and the magnetic attracting member 241 is arranged in the adjusting member 240, so that the resistance adjustment can be realized without influencing the sealing of the device. When the adjusting member 240 is rotated to the minimum, the second opening 223 is blocked, the oil is thrown out of the second oil cavity 221 from the first opening 222 from above under the driving of the rotating member 230, the oil in the second oil cavity 221 is reduced, the resistance to the rotating member 230 is reduced, and the power of the hydraulic resistance assembly 200 is reduced; when the adjusting member 240 is rotated to the maximum, at this time, the opening of the second opening 223 is the maximum, oil rapidly enters the second oil chamber 221 from the first oil chamber 211 to form oil circulation, the oil amount contacting the rotating member 230 is the maximum, the resistance to the rotating member 230 is increased to the maximum, and further the maximum power of the hydraulic resistance assembly 200 is reached; realize adjustable liquid hinders device regulation power at the operation in-process, and in addition, the liquid of this kind of magnetism piece hinders the device at the operation in-process, and the sound of production is very little, can reduce the noise that the user produced when using bicycle training ware, reinforcing user experience effect.

In the above solution, the liquid resistance assembly 200 includes: an outer housing member 210, an inner housing member 220, a rotation member 230, and an adjustment member 240. The housing member 210 is disposed at one end of the transmission assembly 100 and forms a first enclosed oil chamber 211. The inner shell piece 220 is arranged in the first oil cavity 211, so that the opening of the inner shell piece 220 faces the transmission assembly 100 and forms a second oil cavity 221, a first opening 222 is arranged above the inner shell piece 220, a second opening 223 is arranged below the side of the inner shell piece 220, the first opening 222 and the second opening 223 are communicated with the first oil cavity 211 and the second oil cavity 221, the rotating piece 230 is arranged in the second oil cavity 221 and magnetically connected to the transmission assembly 100, and a magnetic piece 241 is arranged in the adjusting piece 240 and arranged on the second opening 223 and the outer wall of the outer shell piece 210. The power is adjusted through the adjusting part 240, and the magnetic attracting part 241 is arranged in the adjusting part 240, so that the resistance adjustment is realized under the condition that the sealing of the device is not influenced. When the adjusting member 240 is rotated to the minimum, the oil in the second oil cavity 221 is reduced, the resistance to the rotating member 230 is reduced, and the power of the hydraulic resistance assembly 200 is further reduced; when the adjusting member 240 is rotated to the maximum, the oil in the second oil chamber 221 is increased, the resistance to the rotating member 230 is increased to the maximum, and the power of the hydraulic resistance assembly 200 is increased, thereby solving the problem that the power of the conventional hydraulic resistance device cannot be adjusted in the operation process.

As shown in fig. 2, fig. 3 and fig. 4, in the specific structure of this embodiment, the magnetic attraction element 241 includes: a first magnetic member 242 and a second magnetic member 243. The adjusting member 240 includes: a rotary paddle 244 and a driven paddle 246. One end of the rotating poking sheet 244 is rotatably connected to the center of the outer shell 210, the other end of the rotating poking sheet is provided with a first round hole 245, and the first magnetic member 242 is arranged in the first round hole 245. The driven pulling piece 246 is parallel to the rotating pulling piece 244, one end of the driven pulling piece 246 is rotatably connected to the central position of the inner shell 220, the other end of the driven pulling piece 246 is provided with a second round hole 247, the second magnetic member 243 is arranged in the second round hole 247, and the driven pulling piece 246 can completely cover the second opening 223.

It will be appreciated that one end of the rotary pulling member 244 and the driven pulling member 246 is connected to the center of the outer casing member 210 and the inner casing member 220, respectively, and can rotate around the center of the outer casing member 210 and the inner casing member 220, the first magnetic member 242 is disposed in the first circular hole 245 at the other end of the rotary pulling member 244, and the second magnetic member 243 is disposed in the second circular hole 247 at the other end of the driven pulling member 246, so that the driven pulling member 246 rotates in the same direction following the rotary pulling member 244 by the magnetic coupling attraction between the first magnetic member 242 and the second magnetic member 243, and the position of each rotation of the rotary pulling member 244 and the driven pulling member 246 is stabilized.

Specifically, the first magnetic member 242 and the second magnetic member 243 are arranged in different polarities and attract each other, so that a mechanical linkage mechanism is used between the rotating shifting piece 244 and the driven shifting piece 246, a completely sealed oil cavity is ensured in the first oil cavity 211, and the problem of oil leakage possibly caused by poor sealing in the non-contact transmission of the magnetic member 241 is avoided.

Further, the outer casing member 210 and the inner casing member 220 are both provided with a cylindrical shape, and a plurality of first counter bores 212 are provided on the outer circumference of the outer casing member 210 in parallel to the axial direction of the adjustable hydraulic resistance device, and the plurality of first counter bores 212 facilitate the connection to the resin plate 250 and the fan casing 133 of the transmission assembly 100 by screws. As shown in fig. 5, a limiting bar 213, a power indicator MIN and a power indicator MAX are further disposed on the housing member 210, the limiting bar 213 is used to limit the maximum and minimum angles of rotation of the rotary dial 244, and at the same time, the position where the maximum power value of the rotary dial 244 can be adjusted is used as the maximum power indicator MAX, and the position where the minimum power value of the rotary dial 244 can be adjusted is used as the minimum power indicator MIN.

Further, a sixth through hole is arranged at the central axis of the inner casing member 220, a first cylinder is arranged at the central axis of the outer casing member 210, the first cylinder is arranged in the sixth through hole to close the sixth through hole, so that the outer casing member 210 and the inner casing member 220 are connected into a whole,

further, the first opening 222 is configured as a relatively large square opening, which facilitates the rotation member 230 to throw a certain amount of oil during the rotation process.

Further, the driven pulling piece 246 is provided in a sector shape, the second opening 223 is provided in a circular arc-shaped long opening, and the size of the sector shape of the driven pulling piece 246 is slightly larger than the length of the second opening 223, so that the driven pulling piece 246 can completely cover the second opening 223.

Further, the rotating pick 244 is configured as a strip shape, and the size of the strip shape is required to accommodate the first magnetic member 242 and facilitate the shifting operation by fingers.

As shown in fig. 1, 2 and 3, in the specific structure of this embodiment, a linkage rotating shaft piece 248 is connected to a side surface of the driven pick 246, the linkage rotating shaft piece 248 is located at a position far from the center of the inner casing member 220, and the linkage rotating shaft piece 248 can completely cover the first opening 222.

It can be understood that when the adjusting member 240 is rotated counterclockwise to the minimum, the second opening 223 is completely blocked, the first opening 222 covered with the linkage rotating shaft piece 248 is completely opened, oil is thrown out of the second oil cavity 221 from the upper end of the first opening 222 under the driving of the rotating member 230, the oil in the second oil cavity 221 is reduced, the resistance to the rotating member 230 is reduced, and the power of the hydraulic resistance assembly 200 is reduced; when the adjusting member 240 is rotated to the maximum clockwise, at this time, the opening of the second opening 223 is completely opened, the linkage rotating shaft piece 248 completely covers the first opening 222, the first opening 222 is completely blocked, oil rapidly enters the second oil cavity 221 from the first oil cavity 211 through the second opening 223, the amount of oil in the second oil cavity 221 is increased to the maximum, the resistance to the rotating member 230 is increased to the maximum, and then the maximum power of the hydraulic resistance assembly 200 is reached; the power of the adjustable liquid resistance device is adjusted in the operation process.

As shown in fig. 4, in the specific structure of this embodiment, the liquid resistance assembly 200 further includes: a resin plate 250, wherein the resin plate 250 is disposed between the rotating member 230 and the transmission assembly 100, and seals the first oil chamber 211 with the housing member 210.

It can be understood that the first oil chamber 211 is sealed by the resin plate 250 being connected to the housing member 210, and the first oil chamber 211 is ensured to be in a completely sealed state, thereby preventing the oil inside from leaking out.

Further, the resin plate 250 is axially provided with a plurality of first through holes 251 for matching with the plurality of first counter bores 212 on the housing member 210, so as to close the first oil chamber 211.

As shown in fig. 1 and fig. 2, in the specific structure of this embodiment, the liquid resistance assembly 200 further includes: and a sealing ring 260 disposed between the resin plate 250 and the housing member 210, the sealing ring 260 sealing the first oil chamber 211. It is easily contemplated that the sealing ring 260 is an O-ring 260.

It is understood that the packing 260 is disposed between the resin plate 250 and the housing member 210, and prevents the oil in the first oil chamber 211 from leaking out from the gap on the basis of the screw coupling between the resin plate 250 and the housing member 210.

As shown in fig. 4, in the specific structure of the present embodiment, the rotating member 230 includes: an aluminum disk 231 and a rotating impeller 232. The aluminum disc 231 is positioned on the side of the resin plate 250, which faces away from the transmission assembly 100, and a first central shaft 233 is arranged in the aluminum disc 231, which faces towards the first oil cavity 211; the rotating impeller 232 is sleeved on the first central shaft 233.

It can be understood that the aluminum disc 231 rotates under the action of the strong magnetic member 120 of the transmission assembly 100, and at the same time, the first central shaft 233 drives the rotating impeller 232 to rotate in the second oil chamber 221, when the oil volume in the second oil chamber 221 increases gradually, the rotating impeller 232 decelerates and reacts on the aluminum disc 231, and the aluminum disc 231 reacts on the transmission assembly 100 to increase the resistance of the transmission assembly 100; when the oil capacity in the second oil cavity 221 gradually decreases, the rotating impeller 232 decelerates and slows down to further react on the aluminum disc 231, and the aluminum disc 231 reacts on the transmission assembly 100 to relatively decrease the resistance of the transmission assembly 100.

Further, a first shaft sleeve 234 is further sleeved on the first central shaft 233, a first bearing 235 and a second bearing 236 are respectively arranged on the first shaft sleeve 234, and the rotating impeller 232 is sleeved on the first bearing 235 and the second bearing 236. It is easy to think that the rotating impeller 232 is further provided with a plurality of second through holes 237 on one side facing the aluminum tray 231, and the rotating impeller 232 is fixed to the aluminum tray 231 through the plurality of second through holes 237, so that the rotating impeller 232 rotates along with the aluminum tray 231.

As shown in fig. 4, in the specific structure of the present embodiment, the transmission assembly 100 includes: a second central shaft 110, a strong magnetic element 120, a heat sink 130 and an inertial flywheel 140. The ferromagnetic member 120 is located on the second central shaft 110 toward one end of the liquid resistance assembly 200. The heat sink 130 is disposed on the second central shaft 110 next to the ferromagnetic member 120 and away from the liquid resistance assembly 200. The inertia flywheel 140 is located at an end of the second central shaft 110 facing away from the hydraulic resistance assembly 200.

It can be understood that the power is transmitted to the ferromagnetic member 120 through the second central shaft 110, the ferromagnetic member 120 drives the aluminum disc 231 to rotate through the eddy current effect, the heat sink 130 is used for dissipating heat from the ferromagnetic member 120, and the inertia flywheel 140 at the other end is used for balancing the inertia caused by the ferromagnetic member 120 and the liquid resistance assembly 200, so as to stabilize the whole adjustable liquid resistance device.

As shown in fig. 4, in the specific structure of the present embodiment, the ferromagnetic member 120 includes: a magnet holder 121 and a magnet 123. The magnet seat 121 is disposed through the end of the second central shaft 110, and a plurality of third circular holes 122 are uniformly formed in the magnet seat 121 along the circumferential direction toward the liquid resistance assembly 200. The plurality of magnets 123 are respectively disposed in the plurality of third circular holes 122.

It can be understood that, by uniformly arranging a plurality of third circular holes 122 on the magnet base 121 in the circumferential direction and arranging a plurality of magnets 123 in the plurality of third circular holes 122 respectively, the magnets 123 are strong magnets 123, the magnets 123 are even and arranged alternately in N, S poles, the second central shaft 110 transmits power to the magnet base 121 to drive the magnet base 121 to rotate, and the magnets 123 in the magnet base 121 drive the aluminum disc 231 to realize power transmission through the eddy current effect under the rotation effect. In addition, the magnet holder 121 also serves to limit the plurality of magnets 123. It is easy to think that the magnets 123 are provided in six, and can be specifically provided according to the needs.

As shown in fig. 4, in the specific structure of the present embodiment, the heat sink 130 includes: a heat radiation fan 131, a fan casing 133 and a spacing sleeve 135. The heat dissipation fan 131 is disposed on the second central shaft 110 and connected to the magnet holder 121. The fan housing 133 is sleeved on the heat dissipation fan 131 and connected to the resin plate 250, and the position limiting sleeve 135 is disposed on a side of the fan housing 133 away from the liquid resistance assembly 200 and used for fixing the position of the fan housing 133.

It can be understood that the heat dissipation fan 131 is disposed on the second central shaft 110 and connected to the magnet holder 121, and rotates with the second central shaft 110 and the magnet holder 121 in the same direction and at the same speed, so as to dissipate heat generated when the magnet 123 in the magnet holder 121 and the aluminum disc 231 generate an eddy current effect. The fan housing 133 is sleeved on the heat dissipation fan 131, so as to beautify the appearance of the adjustable liquid resistance device, and on the other hand, the fan housing 133 is connected to the resin plate 250 and achieves a static sealing effect together with the resin plate 250. The second central shaft 110 is further provided with a limiting sleeve 135, the limiting sleeve 135 is located between the fan housing 133 and the heat dissipation fan 131, and the limiting sleeve 135 is used for limiting the distance between the heat dissipation fan 131 and the fan housing 133, so as to ensure that a certain distance exists between the heat dissipation fan 131 and the fan housing 133.

Further, a plurality of third through holes 132 are formed in the heat dissipation fan 131 on a side facing the magnet holder 121, and correspondingly, a plurality of fifth through holes 124 are formed in the magnet holder 121, and the heat dissipation fan 131 is fixed to the magnet holder 121 through the third through holes 132 and the fifth through holes 124 by using screws to dissipate heat from the magnets 123 as the magnet holder 121 rotates.

Further, a plurality of fourth through holes 134 are further provided in the fan housing 133 in a direction toward the resin board 250, the plurality of fourth through holes 134 are fitted to the plurality of first through holes 251 and the plurality of first counter bores 212, and the fan housing 133, the resin board 250, and the housing member 210 are connected by screws.

It is easy to think that the fan housing 133 is further provided with a plurality of heat dissipation holes for dissipating heat of the heat dissipation fan 131, and the shape of the heat dissipation holes can be set as required.

As shown in fig. 4, in a specific structure of the present embodiment, the transmission assembly 100 further includes: and the friction shaft 150 is sleeved on the second central shaft 110, and is used for abutting against a power source.

It can be understood that the friction shaft 150 sleeved on the second central shaft 110 contacts with the power source, and the power is transmitted to the second central shaft 110 through the friction shaft 150, further transmitted to the strong magnetic member 120, and then transmitted to the liquid resistance assembly 200 for power adjustment, and then the friction force is increased for the power source.

Further, friction axle 150 both ends still are provided with third bearing 151 and fourth bearing 152 respectively, friction axle 150 one side is provided with first fixing base 160, first fixing base 160 connect in third bearing 151 with fourth bearing 152. An adjusting top shaft 161 is further arranged in the first fixing seat 160, a third counter bore is arranged on the adjusting top shaft 161, and the third counter bore is connected to the supporting rod on the second fixing seat 331 and used for adjusting the supporting angle of the adjustable liquid resistance device.

Further, the first fixing seat 160 is far away from one end of the heat dissipation member 130 is further provided with a plastic cover 162, and the plastic cover 162 is used for sealing the first fixing seat 160 and the third bearing 151, so that the overall attractiveness is improved.

Example two:

on the basis of the first embodiment, as shown in fig. 7, the utility model discloses still provide a bicycle training ware, include adjustable liquid resistance device and bracket component as described in the first embodiment. The bracket assembly includes: first support 310, second support 320, third crossbearer 330 and second fixing base 331, first support 310 with second support 320 sets up respectively the both ends of third crossbearer 330, second fixing base 331 is installed on third crossbearer 330, adjustable liquid resistance device connect in second fixing base 331, be provided with the bicycle wheel between first support 310 and the second support 320, just the bicycle wheel supports and leans on transmission component 100.

It can be understood that the bicycle wheel is fixed between the first support 310 and the second support 320, the second fixing seat 331 is matched with the first fixing seat 160, the adjustable hydraulic resistance device is fixed, the bicycle wheel is abutted against the friction shaft 150, power is transmitted to the transmission assembly 100 and then to the hydraulic resistance assembly 200, power adjustment is achieved, and the problem that the power of the existing bicycle trainer cannot be adjusted in the training process is solved.

To sum up, the utility model provides an adjustable liquid hinders device and bicycle training ware, through setting up the liquid hinders subassembly 200 and includes: an outer housing member 210, an inner housing member 220, a rotation member 230, and an adjustment member 240. The housing member 210 is disposed at one end of the transmission assembly 100 and forms a first enclosed oil chamber 211. The inner shell piece 220 is arranged in the first oil cavity 211, so that the opening of the inner shell piece 220 faces the transmission assembly 100 and forms a second oil cavity 221, a first opening 222 is arranged above the inner shell piece 220, a second opening 223 is arranged below the side of the inner shell piece 220, the first opening 222 and the second opening 223 are communicated with the first oil cavity 211 and the second oil cavity 221, the rotating piece 230 is arranged in the second oil cavity 221 and magnetically connected to the transmission assembly 100, and a magnetic piece 241 is arranged in the adjusting piece 240 and arranged on the second opening 223 and the outer wall of the outer shell piece 210. The power is adjusted through the adjusting part 240, and the magnetic attracting part 241 is arranged in the adjusting part 240, so that the resistance adjustment is realized under the condition that the sealing of the device is not influenced. When the adjusting member 240 is rotated to the minimum, the oil in the second oil cavity 221 is reduced, the resistance to the rotating member 230 is reduced, and the power of the hydraulic resistance assembly 200 is further reduced; when the adjusting member 240 is rotated to the maximum, the oil in the second oil chamber 221 is increased, the resistance to the rotating member 230 is increased to the maximum, and the power of the hydraulic resistance assembly 200 is increased, thereby solving the problem that the power of the conventional hydraulic resistance device cannot be adjusted in the operation process.

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. An adjustable hydraulic resistance device, comprising:

a transmission assembly;

a hydraulic resistance assembly, the hydraulic resistance assembly comprising:

2. The adjustable hydraulic resistance device of claim 1, wherein the magnetically attractive element comprises: a first magnetic member and a second magnetic member;

the adjusting member includes:

3. The adjustable hydraulic resistance device of claim 2, wherein a linkage pivot plate is attached to a side of the driven paddle member, the linkage pivot plate is located away from a center of the inner housing member, and the linkage pivot plate completely covers the first opening.

4. The adjustable hydraulic resistance device of claim 1, wherein the hydraulic resistance assembly further comprises:

5. The adjustable hydraulic resistance device of claim 4, wherein the hydraulic resistance assembly further comprises:

6. The adjustable hydraulic resistance device of claim 4, wherein the rotating member comprises:

and the rotating impeller is sleeved on the first central shaft.

7. The adjustable hydraulic resistance device of claim 4, wherein the transmission assembly comprises:

a second central shaft;

8. The adjustable hydraulic resistance device of claim 7, wherein the ferromagnetic member comprises:

and the magnets are respectively arranged in the third round holes.

9. The adjustable hydraulic resistance device of claim 8, wherein the heat sink comprises:

10. Bicycle trainer, characterised in that it comprises an adjustable hydraulic resistance device according to any one of claims 1 to 9;