Swing arm mounting assembly and trainer

Abstract

The application discloses a swing arm mounting assembly and a trainer, and relates to the technical field of fitness equipment. The swing arm mounting assembly comprises a mounting base, a toothed disc, a ring-shaped connecting piece, a rotating sleeve and a swing arm. The toothed disc is fixedly arranged on the mounting base, and the toothed disc is provided with a toothed disc body and an adapter body arranged along the axial direction of the toothed disc; the outer side wall of the adapter body is tightly attached to the inner side wall of the ring-shaped connecting piece; the rotating sleeve is sleeved outside the toothed disc and the ring-shaped connecting piece, and the rotating sleeve is rotationally matched with the adapter body through the ring-shaped connecting piece; the swing arm is fixed to the rotating sleeve, and the swing arm is provided with a clamping tooth, which is used for moving between a first position and a second position; wherein, when the clamping tooth is located at the first position, the clamping tooth is locked on the toothed disc to prevent the rotation of the rotating sleeve relative to the toothed disc, and when the clamping tooth is located at the second position, the clamping tooth is separated from the toothed disc. The application can reduce the swing amount of the swing arm during the swing process.

Description

Technical Field

[0001] This application relates to the field of fitness equipment technology, and more specifically to arm swing mounting components and training devices. Background Technology

[0002] With the increasingly fast pace of modern life, people are often immersed in busy work, leading to a growing emphasis on their health. As a result, fitness has become a popular form of exercise for urban residents. Based on this, multi-gym trainers have emerged. A multi-gym trainer typically consists of a main body and swing arms. The main body is equipped with a resistance supply device connected to a resistance cable. This cable extends along the swing arms, allowing users to apply force to the cable to overcome the resistance provided by the resistance supply device, thus achieving strength training effects. The swing arms can swing relative to the main body of the trainer to meet the needs of different training movements.

[0003] However, existing integrated training devices, such as Chinese patent application with publication number CN 112384288 A and publication date of February 19, 2021, disclose a training device in which the rotational connection between the arm and the sagittal gear is achieved by a pin passing through multiple structures. This results in an excessively large gap in the connection structure between the arm and the sagittal gear, causing the arm to wobble excessively during the swinging process.

[0004] Therefore, there is an urgent need for swing arm mounting components that can reduce the amount of swaying of the swing arm during swinging. Summary of the Invention

[0005] In view of this, in order to solve the above-mentioned technical problems, this application provides a swing arm mounting assembly and a trainer.

[0006] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a swing arm mounting assembly, which includes a mounting base, an annular connector, a rotating sleeve, and a swing arm.

[0007] A geared disc is fixedly mounted on a mounting base. The geared disc comprises a disc body and a transition body arranged along its axial direction. The outer wall of the transition body is pressed against the inner wall of the annular connector. A rotating sleeve is fitted over the geared disc and the annular connector, and the rotating sleeve is rotatably engaged with the transition body via the annular connector. A rocker arm is fixed to the rotating sleeve and is equipped with locking teeth for moving between a first position and a second position. When in the first position, the locking teeth are engaged with the geared disc to prevent rotation of the rotating sleeve relative to the geared disc; when in the second position, the locking teeth are disengaged from the geared disc.

[0008] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a training device, which includes a training device body and a swing arm mounting assembly. The swing arm mounting assembly is fixed to the training device body through a mounting base; wherein, the swing arm mounting assembly is the aforementioned swing arm mounting assembly.

[0009] Beneficial effects: By using a rotating sleeve fitted around the gear disc and the annular connector, and with the rotating sleeve rotatably engaging with the adapter via the annular connector, the swing arm is fixed to the rotating sleeve. The swing of the swing arm is achieved by the rotation of the rotating sleeve relative to the adapter. Because the inner wall of the rotating sleeve is tightly fitted to the outer wall of the annular connector, and the inner wall of the annular connector is tightly fitted to the outer wall of the adapter, the connection structure between the swing arm and the gear disc is more compact, reducing the amount of swaying of the swing arm during swinging. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of the trainer of the present invention;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the swing arm mounting assembly of the trainer of the present invention, obtained by cutting along the axial direction of the toothed disc.

[0013] Figure 3 This is an exploded view of the swing arm mounting assembly of the trainer of the present invention;

[0014] Figure 4 This is a schematic diagram of the structure of the mounting base of the swing arm mounting assembly of the trainer of the present invention;

[0015] Figure 5 yes Figure 2 Enlarged schematic diagram of region A in the middle;

[0016] Figure 6 This is a schematic diagram from one perspective of the assembly structure of the first adapter, the gear plate, the second adapter, and the mounting base of the trainer of the present invention.

[0017] Figure 7 This is a schematic diagram from another perspective of the assembly structure of the first adapter, the gear plate, the second adapter, and the mounting base of the trainer of the present invention.

[0018] Figure 8 yes Figure 7 Enlarged schematic diagram of region B in the middle;

[0019] Figure 9 This is a schematic diagram of the cross-sectional structure of the swing arm mounting assembly obtained by cutting along the axis perpendicular to the toothed disc when the toothed disc of the trainer of the present invention is placed in the first position.

[0020] Figure 10 yes Figure 9 Enlarged schematic diagram of region C in the middle;

[0021] Figure 11 yes Figure 10 Enlarged schematic diagram of region D in the middle;

[0022] Figure 12 This is a schematic diagram of the cross-sectional structure of the swing arm mounting assembly obtained by cutting along the axis perpendicular to the toothed disc when the toothed disc of the trainer of the present invention is placed in the second position.

[0023] Figure 13 yes Figure 12 Enlarged schematic diagram of region E in the middle Figure 7 Enlarged schematic diagram of region B in the middle;

[0024] Figure 14 yes Figure 13 A magnified schematic diagram of the middle region F.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Trainer; 100. Trainer body; 200. Swing arm mounting assembly; 300. Pull rope; 400. Training accessories;

[0027] 210. Mounting base; 220. Gear plate; 230. Ring connector; 240. Rotating sleeve; 250. Swing arm; 260. Adapter sleeve; 270. Retaining ring; 280. Second pulley; 290. First pulley; 510. Second pulley bracket; 520. Protruding joint;

[0028] 211. Fixing hole; 212. Adapter hole; 213. Clearance notch; 214. Clearance through hole; 215. Shaft insertion slot;

[0029] 221. Gear disc body; 222. Adapter body; 223. First adapter body; 224. Second adapter body; 231. First annular connector; 232. Second annular connector; 201. First channel cavity; 202. Second channel cavity; 203. Third channel cavity; 204. Pulley receiving cavity; 205. Shaft limiting groove; 206. Pull rope clearance notch; 207. Pull rope passage notch;

[0030] 251. Clamping tooth; 21. Sliding groove; 22. Positioning bead movable through hole; 252. Rocker arm tube; 253. Pull rod assembly; 254. Elastic element; 254a. Compression spring; 255. Clamping tooth fixing sleeve; 23. Locking groove; 24. First guide surface; 256. Slider;

[0031] 610. Positioning bead; 620. Pull pin; 25. Receiving slot; 26. Second guide surface; 630. Pull rod; 640. Pull pin adapter; 650. Compression spring retaining sleeve; 660. Pull pin baffle;

[0032] 641. Extension; 642. Sleeve rod; 643. Pivot joint; 644. Compression spring fixing sleeve limiting groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] See Figure 1 -picture- Figure 3 , Figure 1 This is a schematic diagram of the structure of the trainer of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the swing arm mounting assembly of the trainer of the present invention, obtained by cutting along the axial direction of the toothed disc. Figure 3 This is an exploded view of the swing arm mounting assembly of the trainer of the present invention.

[0036] like Figure 1 The trainer 10 shown includes a trainer body 100 and a swing arm mounting assembly 200, the swing arm mounting assembly 200 being disposed on the trainer body 100. (See figure for reference.) Figure 1 See Figures 2-3As shown, the swing arm mounting assembly 200 includes a mounting base 210, a gear plate 220, an annular connector 230, a rotating sleeve 240, and a swing arm 250.

[0037] A gear disk 220 is fixedly mounted on a mounting base 210. The gear disk 220 has a gear disk body 221 and a transition body 222 arranged along the axial direction of the gear disk 220. The transition body 222 is located inside the annular connector 230. A rotating sleeve 240 is sleeved on the gear disk 220 and the annular connector 230, and the rotating sleeve 240 is rotatably engaged with the transition body 222 through the annular connector 230. A rocker arm 250 is fixed to the rotating sleeve 240 and is provided with a locking tooth 251, which is used to move between a first position and a second position. When the locking tooth 251 is in the first position, it is locked onto the gear disk 220 to prevent the rotating sleeve 240 from rotating relative to the gear disk 220. When the locking tooth 251 is in the second position, it is disengaged from the gear disk 220.

[0038] In this manner, a rotating sleeve 240 is fitted around the gear disc 220 and the annular connector 230, and the rotating sleeve 240 is rotatably engaged with the adapter 222 via the annular connector 230. The swing arm 250 is fixed to the rotating sleeve 240, so that the swing arm 250 swings by rotating the rotating sleeve 240 relative to the adapter 222. Since the inner wall of the rotating sleeve 240 is tightly fitted with the outer wall of the annular connector 230, and the inner wall of the annular connector 230 is tightly fitted with the outer wall of the adapter 222, the connection structure between the swing arm 250 and the gear disc 220 is more compact, which reduces the amount of swaying of the swing arm 250 during the swinging process.

[0039] Furthermore, compared to the training device disclosed in Chinese Patent Publication No. CN 112384288 A, which features a complex connection structure between the locking component and the sagittal gear, making assembly cumbersome, the connection structure between the swing arm 250 and the gear plate 220 in the training device 10 of this invention is improved, making assembly more convenient.

[0040] In addition, see Figure 1 -picture- Figure 3 By using a rotating sleeve 240 to cover the toothed disc 220 and the annular connector 230, the rotating sleeve 240 can cover the annular connector 230 and the toothed disc 220, thereby reducing or preventing accidental contact between the human hand and the toothed disc 220 due to the exposure of the toothed disc 220, thus providing protection for the human hand.

[0041] Combination Figure 1 See Figure 2The trainer 10 includes a drawstring 300, which is threaded through a swing arm 250. One end of the drawstring 300 extends into the trainer body 100 and connects to a resistance supply device within the trainer body 100. The other end of the drawstring 300 extends to the free end of the swing arm 250 and connects to a training coupling 400. The training coupling 400 refers to a structure designed to assist the human body in training. Assisting the human body includes, but is not limited to, assisting the movement of one or more parts of the limbs, head, and neck. The limbs include, but are not limited to, the upper limbs, lower limbs, and torso. In this embodiment, the upper limb, such as the hand, is used as an example. The force applied by the hand to the drawstring 300 overcomes the resistance provided by the resistance supply device, achieving the effect of strength training.

[0042] Combination Figures 1-3 See Figure 4 , Figure 4 This is a schematic diagram of the mounting base of the swing arm mounting assembly of the trainer of the present invention. The mounting base 210 may be provided with a fixing hole 211, which can cooperate with a fastener to fix the mounting base 210 to the trainer body 100. The fastener is, for example, at least one of screws, bolts, and nuts.

[0043] Furthermore, in the training device disclosed in Chinese Patent Publication No. CN 112384288 A, the locking component and the sagittal gear are exposed, making it easy for the user's hand to accidentally touch the locking component or the sagittal gear and be pinched during arm swinging. However, in the training device 10 of the present invention, as... Figures 2-3 As shown, the swing arm mounting assembly 200 includes an adapter sleeve 260. One end of the adapter sleeve 260 is fixed to the side wall of the rotating sleeve 240 corresponding to the gear disk 220 and communicates with the interior of the rotating sleeve 240. The other end of the adapter sleeve 260 extends toward the side wall of the rotating sleeve 240 away from the gear disk 220. The end of the swing arm 250 near the rotating sleeve 240 engages with the adapter sleeve 260, and the retaining tooth 251 moves between a first position and a second position through the end of the adapter sleeve 260 that communicates with the rotating sleeve 240.

[0044] In this manner, the end of the swing arm 250 near the rotating sleeve 240 is engaged with the adapter sleeve 260, thereby allowing the locking tooth 251 to move between a first position and a second position through the adapter sleeve 260 and the rotating sleeve 240. This further prevents accidental contact of the locking tooth 251 or the gear disc 220 with the user's hand, thus avoiding cutting or squeezing of the user's hand by the locking tooth 251 during its movement relative to the gear disc 220, and further protecting the user's hand.

[0045] Furthermore, the end of the swing arm 250 near the rotating sleeve 240 is fitted with the adapter sleeve 260, making the connection structure between the swing arm 250 and the rotating sleeve 240 more compact and less prone to wobbling. Optionally, after the swing arm 250 is fitted with the adapter sleeve 260, the swing arm 250 can be further fixed to the adapter sleeve 260 by fasteners, which can be at least one of screws, bolts, and nuts.

[0046] Furthermore, such as Figures 2-3 As shown, the adapter 222 includes a first adapter 223 and a second adapter 224, and the ring connector 230 includes a first ring connector 231 and a second ring connector 232.

[0047] The first adapter 223 is fixedly connected to the end of the gear plate body 221 facing away from the mounting base 210, and the second adapter 224 is fixedly connected to the end of the gear plate body facing the mounting base 210. A first annular connector 231 is fitted onto the outside of the first adapter 223, and a second annular connector 232 is fitted onto the outside of the second adapter 224. The rotating sleeve 240 is rotatably engaged with the first adapter 223 via the first annular connector 231, and with the second adapter 224 via the second annular connector 232.

[0048] By using the first adapter 223 and the second adapter 224, which are respectively fixed to both sides of the gear disc body 221, the gear disc body 221 is rotated with the rotating sleeve 240 through the first annular connector 231 and the second annular connector 232. This can improve the stability of the connection structure between the rotating sleeve 240 and the gear disc body 221 and avoid or reduce the shaking of the rotating sleeve 240 relative to the gear disc body 221.

[0049] Optionally, in one example, the number of first annular connectors 231 within the swing arm mounting assembly 200 may be one, and the number of second annular connectors 232 within the swing arm mounting assembly 200 may be one, but is not limited thereto. In other examples, the number of first annular connectors 231 within the swing arm mounting assembly 200 may be two or more, and the number of second annular connectors 232 within the swing arm mounting assembly 200 may be two or more.

[0050] Optionally, combined Figure 2 See Figure 3 In one example, the first annular connector 231 is the first bearing, and the second annular connector 232 is the second bearing. The inner ring of the first bearing is fixedly sleeved on the outside of the first adapter 223, and the inner ring of the second bearing is fixedly sleeved on the outside of the second adapter 224. The rotating sleeve 240 is fixedly sleeved on the outer rings of the first bearing and the second bearing, respectively.

[0051] In the above manner, the first bearing and the second bearing are respectively used in conjunction with the first adapter 223 and the second adapter 224 so that the rotating sleeve 240 can rotate relative to the gear disc body 221, thereby reducing the frictional resistance when the rotating sleeve 240 rotates relative to the gear disc body 221.

[0052] Optionally, combined Figure 2 See Figure 3 In another example, the first annular connector 231 and the second annular connector 232 may not employ bearings. For instance, the outer wall of the first annular connector 231, the inner wall of the rotating sleeve 240, the outer wall of the first adapter 223, the outer wall of the second annular connector 232, and the outer wall of the second adapter 224 are all wear-resistant sidewalls. The outer wall of the first annular connector 231 forms a rotating pair with the inner wall of the rotating sleeve 240, and / or the inner wall of the first annular connector 231 forms a rotating pair with the outer wall of the first adapter 223, so that the rotating sleeve 240 is rotatably engaged with the first adapter 223 via the first annular connector 231. The outer side wall of the second annular connector 232 and the inner side wall of the rotating sleeve 240 form a rotating pair, and / or the inner side wall of the second annular connector 232 and the outer side wall of the second adapter 224 form a rotating pair, so that the rotating sleeve 240 is rotatably engaged with the second adapter 224 through the second annular connector 232.

[0053] Furthermore, combined Figures 2-3 See Figure 5 , Figure 5 yes Figure 2 An enlarged schematic diagram of area A. The swing arm mounting assembly 200 includes a retaining ring 270, which is disposed within the rotating sleeve 240 and located at the end of the rotating sleeve 240 near the mounting base 210. The retaining ring 270 engages with the end of the second annular connector 232 facing the mounting base 210, thereby pressing the second annular connector 232, the gear disc body 221, the first adapter body 223, and the first annular connector 231 into the rotating sleeve 240. This prevents the rotating sleeve 240 from detaching from the second annular connector 232 and the first annular connector 231. Optionally, the retaining ring 270 is a double-layer retaining ring, which allows it to elastically engage with the end of the second annular connector 232 facing the mounting base 210, resulting in a better holding effect on the second annular connector 232.

[0054] Optionally, see Figures 2-3 The second adapter 224 has multiple protruding protrusions 520 at one end facing the mounting base 210, and the mounting base 210 has adapter holes 212 corresponding to the protrusions 520. The protrusions 520 are inserted into the adapter holes 212, and the end of the second adapter 224 facing the mounting base 210 abuts against the mounting base 210 to fix the second adapter 224 to the mounting base.

[0055] Furthermore, combined Figures 2-4 See Figures 6-8 , Figure 6 This is a schematic diagram from one perspective of the assembly structure of the first adapter, the gear plate, the second adapter, and the mounting base of the trainer of the present invention. Figure 7 This is a schematic diagram from another perspective of the assembly structure of the first adapter, the gear plate, the second adapter, and the mounting base of the trainer of the present invention. Figure 8 yes Figure 7 A magnified view of region B in the middle.

[0056] The gear disc body 221 is provided with a first channel cavity 201, and the second adapter 224 is provided with a second channel cavity 202. The first channel cavity 201 and the second channel cavity 202 extend along the axial direction of the gear disc 220 and communicate with each other. The mounting base 210 and the opening of the rotating sleeve 240 are spaced apart from each other, and the second adapter 224 extends through the opening of the rotating sleeve 240 to the outside of the rotating sleeve 240 to connect with the mounting base 210. A pull rope clearance notch 206 is formed in the portion of the gear disc 220 between the first annular connector and the gear disc body 221. The pull rope clearance notch 206 is located on the periphery of the first channel cavity 201 and communicates with the first channel cavity 201. A pull rope passage notch 207 is formed in the portion of the gear disc 220 between the second annular connector 232 and the mounting base. The pull rope passage notch 207 is located on the periphery of the second channel cavity 202 and communicates with the second channel cavity 202.

[0057] The swing arm mounting assembly 200 includes a first pulley 290 and a second pulley 280. The first pulley 290 guides the pull rope 300, which extends from the pull rope passage notch 207 to the second channel cavity 202, into the first channel cavity 201. The second pulley 280 guides the pull rope 300, which was guided by the first pulley 290 into the first channel cavity 201, to a pull rope clearance notch 206, so that the pull rope 300 passes through the pull rope clearance notch 206 into the adapter sleeve 260, and then extends along the swing arm 250 after passing through the adapter sleeve 260. The pull rope clearance notch 206 is used to avoid the pull rope 300, so that the tension can follow the swing arm 250.

[0058] In the above manner, the first pulley 290 and the second pulley 280 can be directly disposed inside the gear disk 220, such as disposing of the first pulley 290 inside the second channel cavity 202 or the first channel cavity 201, thereby reducing the additional space occupied by the first pulley 290 and the second pulley 280. This makes the assembly structure composed of the mounting base 210, the second adapter 224, the second annular connector 232, the gear disk body 221, the first adapter 223, the first annular connector 231, the first pulley 290, the second pulley 280, and the rotating sleeve 240 more compact, thereby further reducing the gap in the connection structure between the swing arm 250 and the gear disk 220. Of course, in other embodiments, the first pulley 290 and the second pulley 280 can also be disposed outside the gear disk 220.

[0059] Alternatively, in one example, such as Figures 2-3 As shown, the first adapter 223 is provided with a third channel cavity 203. The third channel cavity 203, the first channel cavity 201, and the second channel cavity 202 are arranged along the axial direction of the gear disk 220 and are connected in sequence. The swing arm mounting assembly 200 includes a first pulley bracket (not shown) and a second pulley bracket 510. The second pulley bracket 510 is fixed to the top wall of the rotating sleeve 240 and extends through the third channel cavity 203 into the first channel cavity 201. The second pulley 280 is located in the first channel cavity 201 and is disposed on the second pulley bracket 510. The first pulley bracket (not shown) is fixed to the mounting base 210 and extends into the second channel cavity 202. The first pulley 290 is located in the second channel cavity 202 and is disposed on the first pulley bracket. In this way, the first pulley 290 and the second pulley 280 can be disposed inside the gear disk 220.

[0060] Alternatively, in another example, a separate first pulley bracket may not be required; specifically, in conjunction with... Figure 2 , Figure 4 See Figures 6-8The mounting base 210 has a clearance notch 213 corresponding to the pull rope passage notch 207, and a clearance through hole 214 corresponding to the second channel cavity 202. The clearance notch 213 communicates with the clearance through hole 214. Multiple adapter holes 212 are spaced around the clearance through hole 214, and each adapter hole 212 corresponds to the insertion of a protrusion 520. A shaft insertion port 215 is provided on the side wall of the clearance notch 213. The portion of the pull rope passage notch 207 corresponding to the shaft insertion port 215 and adjacent to the second channel cavity 202 extends towards the gear plate body 221 relative to the portion of the pull rope passage notch 207 away from the second channel cavity 202 to form a pulley receiving cavity 204. The side wall of the pulley receiving cavity 204 is provided with a shaft limiting groove 205 communicating with the shaft insertion port 215. The first pulley 290 is housed in the pulley housing cavity 204 and at least partially extends into the second channel cavity 202. The shaft of the first pulley 290 is disposed in the shaft limiting groove 205. The portion of the pull rope 300 that contacts the first pulley 290 cooperates with the shaft limiting groove 205 to limit the first pulley 290 within the pulley housing cavity 204.

[0061] When the swing arm mounting assembly 200 is removed from the trainer body 100, it is not necessary to disassemble the connection between the mounting base 210 and the second adapter 224. This allows the portion of the pull rope 300 in contact with the first pulley 290 to swing relative to the portion of the pull rope 300 extending into the second channel cavity 202, disengaging from the clearance notch 213 and swinging to the side of the mounting base 210 away from the gear disc body 221, thereby releasing the restriction of the pull rope 300 on the first pulley 290. Furthermore, the shaft is bypassed by the shaft insertion through the through-hole 215, and the wheel of the first pulley 290 is bypassed by the clearance notch 213, allowing the first pulley 290 to pass through the mounting base 210 and be removed. When installing the first pulley 290, the steps for removing the first pulley 290 are simply reversed. Thus, when installing and removing the first pulley 290, it is not necessary to disassemble the connection between the mounting base 210 and the second adapter 224, making the installation and removal of the first pulley 290 more convenient and quick.

[0062] Furthermore, combined Figures 2-3 See Figures 9-13 , Figure 9 This is a schematic diagram of the cross-sectional structure of the swing arm mounting assembly obtained by cutting along the axis perpendicular to the toothed disc when the toothed disc of the trainer of the present invention is placed in the first position. Figure 10 yes Figure 9 Enlarged schematic diagram of region C in the middle; Figure 11 yes Figure 10 Enlarged schematic diagram of region D in the middle; Figure 12 This is a schematic diagram of the cross-sectional structure of the swing arm mounting assembly obtained by cutting along the axis perpendicular to the toothed disc when the toothed disc of the trainer of the present invention is placed in the second position. Figure 13 yes Figure 12 A magnified view of region E in the middle.

[0063] The swing arm 250 includes a swing arm tube 252, a pull rod assembly 253, a slider 256, and an elastic element 254. One end of the swing arm tube 252 is fitted into an adapter sleeve 260. The slider 256 is slidably disposed within the adapter sleeve 260, and a retaining tooth 251 is disposed at the end of the slider 256 near the gear disc body 221. The second end of the pull rod assembly 253 extends towards the end of the swing arm tube 252 away from the gear disc body 221, and the first end of the pull rod assembly 253 is connected to the slider 256. The elastic element 254 is disposed within the swing arm tube 252 and elastically supports the inner wall of the adapter sleeve 260 and the first end of the pull rod assembly 253, respectively. The elastic restoring force of the elastic element 254 causes the first end of the pull rod assembly 253 to place the retaining tooth 251 in a first position. The pull rod assembly 253 is used to overcome the elastic restoring force of the elastic element 254, causing the elastic element 254 to compress and pull the slider 256 to pull the retaining tooth 251 to a second position.

[0064] In this manner, the elastic restoring force of the elastic element 254 causes the first end of the pull rod assembly 253 to place the locking tooth 251 in a first position, so that the locking tooth 251 abuts against the gear disc body 221, thereby restricting the rotation of the swing arm 250 relative to the trainer body 100. The pull rod 630 can pull the slider 256, causing the locking tooth 251 to be in a second position disengaged from the gear disc body 221, thereby releasing the restriction of the gear disc body 221 on the rotation of the swing arm 250 relative to the trainer body 100, and thus allowing the swing arm 250 to swing up and down relative to the trainer body 100. In this way, by pulling the pull rod 630, the restriction of the gear disc body 221 on the rotation of the swing arm 250 relative to the trainer body 100 can be released, thereby allowing the angle of the swing arm 250 relative to the trainer body 100 to be adjusted. When the pull rod 630 is released, the locking tooth 251 abuts against the gear disc body 221 again based on the elastic restoring force of the elastic element 254, thereby locking the swing arm 250. This allows people to easily adjust the angle of the swing arm 250 relative to the trainer body 100.

[0065] Optionally, such as Figure 2 As shown, the portion of the pull rope 300 extending along the swing arm 250 can pass through one of the two outer side walls of the slider 256 spaced apart along the axial direction of the gear disk 220, which is relatively far from the first pulley 290. For example, the one of the two outer side walls of the slider 256 spaced apart along the axial direction of the gear disk 220, which is relatively far from the first pulley 290, is provided with a rope clearance groove (not shown in the figure), and the portion of the pull rope 300 extending along the swing arm 250 can pass through the rope clearance groove.

[0066] Furthermore, combined Figures 2-3 See Figures 9-13The swing arm mounting assembly 200 includes a retaining sleeve 255 and a positioning bead 610, and the tie rod assembly 253 includes a pull pin 620 and a tie rod 630.

[0067] A retaining sleeve 255 is fitted inside an adapter sleeve 260, and a locking groove 23 is provided on the side wall of the retaining sleeve 255. A slider 256 is slidably disposed inside the retaining sleeve 255. A sliding engagement groove 21 is provided at the end of the slider 256 away from the gear disc 220, and a positioning bead movable through hole 22 is provided on the side wall of the sliding engagement groove 21. A positioning bead 610 is movably disposed within the positioning bead movable through hole 22. A pull pin 620 is located at the first end of the pull rod assembly 253, and a receiving groove 25 is provided on the side wall of the pull pin 620. One end of the pull rod 630 is pivotally connected to the pull pin 620. The pull pin 620 is slidably disposed within the sliding engagement groove 21, and an elastic element 254 is disposed inside the retaining sleeve 255 and elastically supports the pull pin 620 and the end of the retaining sleeve 255 away from the gear disc 220, respectively.

[0068] The pull pin 620 can slide between a third position and a fourth position relative to the locking groove 23. The elastic restoring force of the elastic element 254 keeps the pull pin 620 in the third position, and the pull rod 630 is used to overcome the elastic restoring force of the elastic element 254 to compress the elastic element 254 and pull the pin to the fourth position. When the pull pin 620 is in the third position, the retaining tooth 251 is in the first position, the receiving groove 25 is located on the side of the movable through hole near the gear plate 220, and the positioning bead 610 engages with the positioning bead movable through hole 22 and the locking groove 23 respectively, thereby preventing the slider 256 from moving relative to the retaining tooth fixing sleeve 255. When the pull pin 620 is in the fourth position, the receiving groove 25 is located on the side of the positioning bead movable through hole 22 away from the gear plate 220, and the positioning bead 610 engages with the positioning bead movable through hole 22 and the receiving groove 25 respectively, thereby allowing the slider 256 to move relative to the retaining tooth fixing sleeve 255.

[0069] In this way, the pull pin 620 can move to the third position to lock the slider 256, thereby locking the locking tooth 251 which has moved to the first position. The pull pin 620 can move to the fourth position to unlock the slider 256, allowing the slider 256 to move and the locking tooth 251 to move. Thus, when it is necessary to adjust the swing angle of the swing arm 250 relative to the trainer body 100, the pull rod 630 can be used to first pull the pull pin 620 to the fourth position, and then by subsequently pulling or releasing the pull rod 630, the slider 256 can be moved, and the locking tooth 251 will follow the movement of the slider 256 and disengage from the gear disc body 221. When the swing angle of the swing arm 250 relative to the trainer body 100 is adjusted, the pull rod 630 can be completely released, so that the pull pin 620 is placed in the third position under the elastic restoring force of the elastic element 254, thereby locking the slider 256 and resetting the locking tooth 251 to the first position. Since the pull rod 630 is pivotally connected to the pull pin 620, the pull rod 630 can swing relative to the pull pin 620, thereby enabling the pull rod 630 to follow the direction of the pulling force applied to the pull rod 630 and adaptively adjust the angle with the pull pin 620 to prevent the pull pin 620 from getting stuck during the movement.

[0070] Further, see Figures 9-13 As shown, a first guide surface 24 is formed on the lower side wall of the locking groove 23, extending away from the bottom of the locking groove 23 and away from the gear plate 220. A second guide surface 26 is formed on the lower side wall of the receiving groove 25, extending away from the bottom of the receiving groove 25 and away from the gear plate 220. When the pull pin 620 moves from the third position to the fourth position, causing the receiving groove 25 to pass through the positioning bead movable through hole 22, the positioning bead 610 can disengage from the locking groove 23 and partially enter the receiving groove 25 under the pressure of the upper side wall of the positioning bead movable through hole 22 and the guidance of the first guide surface 24, so as to respectively engage with the locking groove 23 and the receiving groove 25. When the pull pin 620 moves from the fourth position to the third position, causing the receiving groove 25 to pass through the positioning bead movable through hole 22, the positioning bead 610 can, under its own weight and the guidance of the second guide surface 26, detach from the receiving groove 25 and partially enter the locking groove 23, so as to respectively engage with the positioning bead movable through hole 22 and the receiving groove 25, thereby locking the slider 256.

[0071] By means of the above method, the position of the positioning bead 610 can be adaptively adjusted by the up and down movement of the pull pin 620 relative to the locking groove 23, so that it can be respectively engaged with the locking groove 23 and the positioning bead movable through hole 22 or respectively engaged with the positioning bead movable through hole 22 and the receiving groove 25.

[0072] Optionally, combined Figures 12-13 See Figure 14 , Figure 14 yes Figure 13Enlarged schematic diagram of the central region F. The swing arm mounting assembly 200 includes a pull pin baffle 660, which is fixed to one end of the sliding groove 21 away from the gear disc body 221. The pull pin baffle 660 is provided with a through hole communicating with the sliding groove 21. The pull pin 620 and the pull rod 630 are connected through the through hole. The pull pin baffle 660 can stop the pull pin 620 to prevent the pull pin 620 from sliding out of the sliding groove 21.

[0073] Optionally, the end of the pull pin 620 facing away from the gear disc body 221 is provided with a pull pin adapter 640, the elastic element 254 is a compression spring 254a, and the pull rod assembly 253 includes a compression spring retaining sleeve 650. The compression spring retaining sleeve 650 is connected to the pull pin adapter 640 and is located outside the sliding fit groove 21. The pull rod 630 is pivotally connected to the pull pin adapter 640, and the part of the pull pin adapter 640 that is pivotally connected to the pull rod 630 is located on the side of the compression spring retaining sleeve 650 away from the pull pin 620. The end of the compression spring 254a near the pull pin 620 abuts against the inside of the pull pin 620 adapter sleeve, and the end of the compression spring 254a away from the pull pin 620 abuts against the end of the retaining sleeve 255 away from the gear disc 220.

[0074] Optionally, combined Figures 12-13 See Figure 14 The pull pin adapter 640 includes an extension 641, a sleeve 642, and a pivot 643. The extension 641 protrudes from the end of the pull pin 620 away from the gear plate body 221, forming a stepped surface at the connection between the pull pin 620 and the extension 641. The pull pin baffle 660 stops this stepped surface to prevent the pull pin 620 from disengaging from the sliding groove 21. The pivot 643 is located on the side of the extension 641 away from the slider 256 and is spaced apart from the extension 641. The sleeve 642 connects the extension 641 and the pivot 643. The pull rod 630 is pivotally connected to the pivot 643. The compression spring retaining sleeve 650 is sleeved on the sleeve 642, and the pivot 643, the sleeve 642, and the extension 641 form a compression spring retaining sleeve limiting groove 644, which limits the compression spring retaining sleeve 650. The pivot portion 643 can be a pivot post, but is not limited to this.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A swing arm mounting assembly, characterized in that, The swing arm mounting assembly includes: Mounting base; A gear disc is fixedly mounted on the mounting base, and the gear disc is provided with a gear disc body and a connecting body arranged along the axial direction of the gear disc; A ring-shaped connector, wherein the outer side wall of the adapter is tightly fitted to the inner side wall of the ring-shaped connector; A rotating sleeve is fitted over the gear disc and the annular connector, and the rotating sleeve is rotatably engaged with the adapter body through the annular connector; The device includes a swing arm fixed to the rotating sleeve, the swing arm having a locking tooth for moving between a first position and a second position; wherein, when the locking tooth is in the first position, it is locked onto the gear plate to prevent the rotating sleeve from rotating relative to the gear plate, and when the locking tooth is in the second position, it disengages from the gear plate. The swing arm mounting assembly includes: An adapter sleeve, one end of which is fixed to the side wall of the rotating sleeve corresponding to the gear disc body and communicating with the interior of the rotating sleeve, and the other end of which extends toward the side wall of the rotating sleeve away from the gear disc. Wherein, one end of the swing arm near the rotating sleeve is sleeved with the adapter sleeve, and the retaining tooth moves between the first position and the second position through one end of the adapter sleeve that communicates with the rotating sleeve; The adapter body includes a first adapter body and a second adapter body, and the ring-shaped connector includes a first ring-shaped connector and a second ring-shaped connector; The first adapter is fixed to the end of the gear disc body away from the mounting base, and the second adapter is fixed to the end of the gear disc body facing the mounting base; the first annular connector is correspondingly sleeved on the first adapter body, and the second annular connector is correspondingly sleeved on the second adapter body. The rotating sleeve is rotatably engaged with the first adapter body via the first annular connector, and the rotating sleeve is rotatably engaged with the second adapter body via the second annular connector. The first annular connector is a first bearing, and the second annular connector is a second bearing; the inner ring of the first bearing is fixedly sleeved on the first adapter body, the inner ring of the second bearing is fixedly sleeved on the second adapter body, and the rotating sleeve is fixedly sleeved on the outer ring of the first bearing and the outer ring of the second bearing respectively. The swing arm includes: A swing arm tube, one end of which is fitted into the adapter sleeve; The slider is slidably disposed inside the adapter sleeve, and the retaining tooth is disposed at one end of the slider near the toothed disc body; A pull rod assembly, the second end of which extends toward the end of the rocker arm tube away from the gear disc body, and the first end of which is connected to the slider; An elastic element is disposed inside the swing arm tube and elastically supports the inner wall of the adapter sleeve and the first end of the pull rod assembly, respectively; the elastic restoring force of the elastic element causes the first end of the pull rod assembly to place the locking tooth in the first position; The pull rod assembly is used to overcome the elastic restoring force of the elastic element, causing the elastic element to compress and pull the slider to pull the locking tooth to the second position.

2. The swing arm mounting assembly according to claim 1, characterized in that, The swing arm mounting assembly includes a retaining ring, which is disposed inside the rotating sleeve and located at one end of the rotating sleeve near the mounting base. The retaining ring is engaged with the end of the second annular connector facing the mounting base to press the second annular connector, the gear plate body, the first adapter body, and the first annular connector into the rotating sleeve.

3. The swing arm mounting assembly according to claim 2, characterized in that, The gear disc body is provided with a first channel cavity, and the second adapter body is provided with a second channel cavity; the first channel cavity and the second channel cavity extend along the axial direction of the gear disc and are interconnected; a pull rope clearance notch is formed in the portion of the gear disc located between the first annular connector and the gear disc body, the pull rope clearance notch is located on the periphery of the first channel cavity and is interconnected with the first channel cavity; a pull rope passage notch is formed in the portion of the gear disc located between the second annular connector and the mounting base, the pull rope passage notch is located on the periphery of the second channel cavity and is interconnected with the second channel cavity; The swing arm mounting assembly includes a first pulley and a second pulley. The first pulley guides the pull rope extending from the pull rope passage notch into the second channel cavity into the first channel cavity. The second pulley guides the pull rope guided by the first pulley into the first channel cavity into the pull rope clearance notch, so that the pull rope enters the adapter sleeve through the pull rope clearance notch, and then extends along the swing arm after passing through the adapter sleeve. The pull rope clearance notch is used to avoid the pull rope so that the tension can follow the swing arm's swing.

4. The swing arm mounting assembly according to claim 1, characterized in that, The swing arm includes a retaining sleeve and a positioning bead; the pull rod assembly includes a pull pin and a pull rod. The retaining sleeve is placed inside the adapter sleeve, and the side wall of the retaining sleeve is provided with a locking groove; the slider is slidably disposed inside the retaining sleeve; the end of the slider away from the toothed disc is provided with a sliding engagement groove, and the side wall of the sliding engagement groove is provided with a positioning bead movable through hole, and the positioning bead is movably disposed in the positioning bead movable through hole; The pull pin is disposed at the first end of the pull rod assembly, and the side wall of the pull pin is provided with a receiving groove. One end of the pull rod is pivotally connected to the pull pin. The pull pin is slidably disposed in the sliding mating groove. The elastic element is disposed in the retaining sleeve and elastically supports the pull pin and the retaining sleeve at the ends away from the toothed disc, respectively. The pull pin can slide relative to the locking groove between a third position and a fourth position; The elastic restoring force of the elastic element causes the pull pin to be in the third position. The pull rod is used to overcome the elastic restoring force of the elastic element, compressing the elastic element to pull the pull pin to the fourth position. When the pull pin is in the third position, the locking tooth is in the first position, the receiving groove is located on the side of the movable through hole near the gear plate, and the positioning bead is respectively engaged with the movable through hole of the positioning bead and the locking groove, thereby preventing the slider from moving relative to the locking tooth fixing sleeve. When the pull pin is in the fourth position, the receiving groove is located on the side of the movable through hole of the positioning bead away from the gear plate, and the positioning bead is respectively engaged with the movable through hole of the positioning bead and the receiving groove, thereby allowing the slider to move relative to the locking tooth fixing sleeve.

5. The swing arm mounting assembly according to claim 4, characterized in that, The lower side wall of the locking groove has a first guide surface, which extends away from the bottom of the locking groove in a direction away from the gear plate; the lower side wall of the receiving groove has a second guide surface, which extends away from the bottom of the receiving groove in a direction away from the gear plate. Specifically, when the pull pin moves from the third position to the fourth position, causing the receiving groove to pass through the movable through hole of the positioning bead, the positioning bead, under the pressure of the upper side wall of the movable through hole of the positioning bead and the guidance of the first guide surface, can disengage from the locking groove and partially enter the receiving groove, so as to be respectively engaged in the locking groove and the receiving groove; when the pull pin moves from the fourth position to the third position, causing the receiving groove to pass through the movable through hole of the positioning bead, the positioning bead, under its own weight and the guidance of the second guide surface, can disengage from the receiving groove and partially enter the locking groove, so as to be respectively engaged in the movable through hole of the positioning bead and the receiving groove.

6. A training device, characterized in that, The trainer includes a trainer body and a swing arm mounting assembly, wherein the swing arm mounting assembly is fixed to the trainer body via the mounting base; wherein the swing arm mounting assembly is the swing arm mounting assembly as described in any one of claims 1-5.

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