Damping-adjustable abdominal roller

Abstract

The utility model discloses a damping-adjustable power roller which comprises a roller body and a central tube movably penetrating through the roller body, more than two damping mechanisms used for forming resistance in the rotating direction between the roller body and the central tube are arranged between the roller body and the central tube, and the damping mechanisms are fixed relative to the roller body; a sliding clutch piece which moves in the axial direction of the center pipe is arranged between the damping mechanism and the center pipe, and the sliding clutch piece and the center pipe are locked in the radial direction. The sliding clutch piece is provided with an elastic piece used for driving the sliding clutch piece to move towards the damping mechanism. The sliding clutch piece is provided with a multi-gear limiting piece, the multi-gear limiting piece is used for limiting the displacement distance of the sliding clutch piece driven by the elastic piece in a multi-section mode, and the sliding clutch piece enables one or more damping mechanisms to take effect between the wheel body and the center pipe under the simultaneous action of the elastic piece and the multi-gear limiting piece. Two-way matching of the elastic piece and the multi-gear limiting piece replaces a damping adjusting mode driven by a single-side thread, and the problem that the reliability is not high due to the fact that the thread cannot be used after being abraded and breaks down is solved.

Description

Technical Field

[0001] The utility model relates to the field of sports equipment, in particular to an abdominal wheel with adjustable damping. Background Art

[0002] The ab wheel is a small push-type exercise equipment used to exercise muscles, joints and reduce weight. It is easy to operate and does not require much space. It is suitable for people of all ages.

[0003] After the user uses the abdominal wheel for a period of time to do abdominal exercises, the strength is enhanced, and the original resistance of the abdominal wheel often can no longer meet the needs of the user. For this reason, the patent document of Chinese Patent Publication No. CN112933524B proposes an adjustable gear type abdominal wheel, which drives the sliding sleeve to translate by controlling the rotation of the threaded member by a single-sided knob, so that the sliding sleeve can stop with one or more return mechanisms, thereby realizing the selection and adjustment of the damping gear, so that the user can adjust the resistance of the abdominal wheel according to actual needs;

[0004] However, the adjustment method in which the single-sided knob drives the threaded part to rotate to drive the sleeve to translate, due to the direct friction between the threads, with the long-term use of the abdominal wheel, the threaded part will wear out and eventually fail and become unusable, and its reliability is not strong. Utility Model Content

[0005] The utility model aims to provide a technical solution for an ab wheel with adjustable damping in view of the deficiencies in the prior art, which realizes adjustment of the displacement distance of the sliding clutch by means of the simultaneous action of an elastic member and a multi-stage limiting member on a sliding clutch in relative directions; the two-way cooperation of the elastic member and the multi-stage limiting member replaces the damping adjustment method of a single-sided thread drive, thereby solving the problem of low reliability caused by failure to use due to thread wear.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A damping-adjustable abdominal wheel comprising

[0008] The wheel body and the central tube running through the wheel body;

[0009] Two or more damping mechanisms are provided between the wheel body and the center tube for forming a resistance in the rotation direction between the wheel body and the center tube, and the damping mechanisms are fixed relative to the wheel body;

[0010] A sliding clutch is provided between the damping mechanism and the central tube, and the sliding clutch is radially locked with the central tube; the sliding clutch is provided with an elastic member for driving it to move in the direction of the damping mechanism;

[0011] The sliding clutch is provided with a multi-stage limiter, which is used to limit the displacement distance of the sliding clutch driven by the elastic member in multiple stages. The sliding clutch can be locked with one or more damping mechanisms under the simultaneous action of the elastic member and the multi-stage limiter.

[0012] By adopting the above technical solution, the elastic part can drive the sliding clutch to move in the direction of the damping mechanism, so that it can cooperate with the damping mechanism to stop, so that the damping mechanism takes effect between the wheel body and the center tube; the multi-stage limiter limits the displacement distance of the sliding clutch in multiple stages on the opposite side of the driving direction of the elastic part with multiple optional limit lengths, so that the sliding clutch can be locked with one or more damping mechanisms under the simultaneous action of the elastic part and the multi-stage limiter, so that one or more damping mechanisms take effect between the wheel body and the center tube; the two-way cooperation of the elastic part and the multi-stage limiter replaces the damping adjustment method of the single-sided thread drive, solving the problem of low reliability due to failure of the thread to be used after wear.

[0013] Furthermore, the multi-speed limiter is provided with a slope-type limiter structure, which movably abuts against the sliding clutch. Adjusting the point where the slope-type limiter abuts against the sliding clutch can change the length limit of the displacement of the sliding clutch in the driven direction by the multi-speed limiter.

[0014] Furthermore, the multi-speed limiter includes two or more speed slots, which are arranged on the surface of the sloped limiter structure; a positioning block adapted to the speed slot is provided on the surface of the sliding clutch, and when the sliding clutch cooperates with the sloped limiter structure, the positioning block can be snapped into the speed slot.

[0015] Furthermore, an arc-shaped chamfer is provided on the edge of the gear slot, and the end of the positioning block used for clamping in the gear slot is an arc-shaped end.

[0016] Furthermore, the multi-speed limiter is connected to a gear shifting control member, which is rotatably arranged on one side of the wheel body. The gear shifting control member is used to control the rotation of the multi-speed limiter to achieve multi-stage limitation of the displacement distance in the driven direction of the sliding clutch.

[0017] Furthermore, the gear shift control component is connected to a gear shift seat, the gear shift seat is fixed to one side of the wheel body, and the gear shift control component is rotatably sleeved on the gear shift seat.

[0018] Furthermore, the gear shift control component is provided with a gear stroke rod along the axial direction of the gear shift seat, and the end face of the gear shift seat is provided with a gear stroke groove, and the gear stroke rod is movable through the gear stroke groove. The gear stroke rod is slidably arranged in the gear stroke groove to limit the rotation range of the gear shift control component.

[0019] Furthermore, a window is provided on the side of the gear shift control member, and more than two gear position marks are provided on the side of the gear shift seat. When the gear shift control member rotates relative to the gear shift seat, each gear position mark can be revealed through the window.

[0020] Furthermore, the sliding clutch is provided with a clutch base, the clutch base is fixed to the center tube, the sliding clutch is axially sleeved in the clutch base along the center tube, and an axial limiting assembly is provided between the clutch base and the sliding clutch for realizing radial locking of the sliding clutch and the center tube.

[0021] Furthermore, a stroke assembly is provided between the wheel body and the center tube for limiting the rotational stroke of the wheel body relative to the center tube. The stroke assembly includes a stroke disk fixed relative to the center tube. The stroke disk is sleeved on the surface of the clutch base. The stroke disk and the clutch base are integrally formed.

[0022] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0023] 1. The utility model replaces the damping adjustment mode of unilateral thread drive with the bidirectional cooperation of elastic parts and multi-stage limit parts, solving the problem of low reliability due to failure of the thread wear and unavailability;

[0024] 2. The multi-stage limiter in the utility model uses a slope-type limiter structure to limit the displacement distance of the sliding clutch in multiple stages. The slope-type limiter structure has a linear height difference, and can have a smooth adjustment feel during the adjustment process of the displacement distance limit;

[0025] 3. In the utility model, the gear shifting stroke rod and the gear shifting stroke groove cooperate to limit the rotation range of the gear shifting control member, thereby preventing the gear shifting control member from rotating too much and causing excessive adjustment of the multi-speed limit member;

[0026] 4. In the present invention, each time the gear adjustment control member is rotated to adjust to a gear position, a corresponding gear position mark can be displayed in the window on its side, so that the user can observe the current gear position information. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the structure of the utility model of an abdominal wheel with adjustable damping;

[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of the damping-adjustable abdominal wheel of the utility model;

[0030] Figure 3 It is a structural schematic diagram of the damping adjustment mechanism of the utility model;

[0031] Figure 4It is a schematic diagram of the cross-sectional structure of the damping adjustment mechanism of the utility model;

[0032] Figure 5 It is a structural schematic diagram of the damping mechanism of the utility model;

[0033] Figure 6 It is a structural schematic diagram of the sliding clutch of the utility model;

[0034] Figure 7 It is a schematic diagram of the cross-sectional structure of the sliding clutch of the utility model;

[0035] Figure 8 It is a structural schematic diagram of the sliding clutch and the clutch base of the utility model in a sleeved state;

[0036] Fig. 9 It is a structural schematic diagram of the clutch base of the utility model;

[0037] Fig.10 It is a structural schematic diagram of the sliding clutch member and the multi-speed limiting member of the utility model in abutment state;

[0038] Fig.11 It is a structural schematic diagram of the connection state between the multi-speed limiter and the gear adjustment control member of the utility model;

[0039] Fig.12 This is a schematic diagram of the structure of the multi-stage limiter of the utility model;

[0040] Fig.13 This is a structural schematic diagram of the utility model in which the shift seat and the wheel body are connected;

[0041] Fig.14 This is a structural schematic diagram of the gear shift seat of the utility model;

[0042] Fig.15 This is a schematic diagram of the structure of the thread groove in the wheel body of the utility model;

[0043] Fig.16 This is a schematic diagram of the structure of the travel disc in the wheel body of the utility model;

[0044] In the figure: 1-wheel body; 11-electronic component installation slot; 2-center tube; 21-clutch component base; 22-limiting slide slot; 23-screw hole;

[0045] 3-sliding clutch; 31-spring; 32-shift slot; 33-positioning block; 34-first limit strip; 35-keyway structure; 36-arc chamfer; 37-arc end;

[0046] 4-damping mechanism; 41-coil spring; 42-spring box; 43-clip; 44-clip slot; 45-fixing hole;

[0047] 5-Multi-stage limiter; 51-Slope type limiter structure;

[0048] 6-shift control member; 61-operation auxiliary member; 62-shift seat; 63-window; 64-shift mark; 65-shift travel slot; 66-shift travel lever;

[0049] 7-screw groove; 71-travel plate; 72-strip hole; 73-travel rod; 74-travel rod pressure piece;

[0050] 8-Handle. DETAILED DESCRIPTION

[0051] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0054] Example 1

[0055] A damping adjustable abdominal wheel comprises a wheel body 1 and a central tube 2 movably penetrating the wheel body 1;

[0056] In this embodiment, the outer side of the wheel body 1 is provided with an electronic component installation groove 11 for installing the counting device. Figure 1 As shown;

[0057] The central tube 2 movably penetrates the wheel body 1 so that the wheel body 1 can rotate around the central tube 2;

[0058] At both ends of the central tube 2, handles 8 are fixedly connected for users to grasp. Figure 1 , Figure 2 shown.

[0059] Two or more damping mechanisms 4 are provided between the wheel body 1 and the center tube 2 for forming resistance in the rotation direction between the wheel body 1 and the center tube 2;

[0060] In this embodiment, two damping mechanisms 4 are provided between the wheel body 1 and the central tube 2. This is only a preferred embodiment, and there may be three or even more damping mechanisms 4.

[0061] The damping mechanism 4 is fixed relative to the inner wall of the wheel body 1, and a sliding clutch 3 is provided on the central tube 2. Figure 2 As shown, the sliding clutch 3 is radially locked relative to the central tube 2, and it can be displaced axially along the central tube 2;

[0062] The sliding clutch 3 can achieve locking with the inner ring of one or two damping mechanisms 4 by axially displacing on the central tube 2 , thereby achieving radial locking of the damping mechanism 4 relative to the central tube 2 .

[0063] The sliding clutch member 3 is provided with an elastic member for driving it to move toward the damping mechanism 4;

[0064] In this embodiment, the elastic member is a spring 31. Figure 2 , Figure 4 As shown;

[0065] The sliding clutch 3 is provided with a clutch base 21, and the clutch base 21 is fixed to the central tube 2;

[0066] The sliding clutch 3 is slidably mounted in the clutch base 21. Figure 4 As shown, an axial limit assembly is provided between the clutch base 21 and the sliding clutch 3 to achieve radial locking of the sliding clutch 3 relative to the central tube 2;

[0067] In this embodiment, the axial limiting assembly between the clutch base 21 and the sliding clutch 3 includes a limiting sliding groove 22 formed on the inner side wall of the clutch base 21. Fig. 9 As shown;

[0068] The outer side surface of the sliding clutch 3 is formed with a first limiting strip 34. Figure 8 , Fig.10 As shown;

[0069] The portion of the sliding clutch 3 located inside the clutch base 21 is plugged into the limiting slide groove 22 through the first limiting strip 34, so as to achieve radial locking of the sliding clutch 3 relative to the clutch base 21;

[0070] In this embodiment, a screw hole 23 is provided at one end of the clutch base 21. Fig.16 As shown;

[0071] The clutch base 21 and the center tube 2 are fixed by tightening the screws penetrating the screw holes 23 and the center tube 2.

[0072] The spring 31 is disposed in the clutch base 21, one end of which abuts against the inner wall of the clutch base 21, and the other end abuts against the sliding clutch 3. Figure 4 , Figure 7 As shown;

[0073] In this way, the spring 31 acts between the sliding clutch 3 and the central tube 2, and the spring 31 is compressed during the process of the sliding clutch 3 retracting into the clutch base 21;

[0074] The driving force generated by the extension and rebound of the spring 31 can push the sliding clutch 3 to extend out of the clutch base 21 , that is, drive the sliding clutch 3 to move in the direction of the damping mechanism 4 .

[0075] The damping mechanism 4 includes a spring box 42 and a coil spring 41 sleeved in the spring box 42. Figure 5 As shown;

[0076] A clamp 43 is formed at one end of the coil spring 41, and a clamping groove 44 adapted to the clamp 43 is formed on the inner side of the spring box 42. The outer ring of the coil spring 41 is fixed to the spring box 42 through the cooperation of the clamp 43 and the clamping groove 44.

[0077] The outer wall of the barrel 42 is provided with a fixing hole 45. Figure 5 As shown;

[0078] The spring box 42 is fixedly connected to the inner wall of the wheel body 1 through the fixing hole 45;

[0079] The center of the barrel 42 is provided with a keyway structure 35, and the inner ring of the coil spring 41 is connected to the keyway structure 35. Figure 5 As shown;

[0080] After the sliding clutch 3 is extended from the clutch base 21 under the drive of the spring 31, the first limit strip 34 of the outer wall thereof can be inserted into the keyway structure 35 in cooperation;

[0081] The first limit strip 34 and the key slot structure 35 are plugged in and out to achieve locking of the sliding clutch 3 and the damping mechanism 4.

[0082] After the sliding clutch 3 and the damping mechanism 4 are locked together, since the sliding clutch 3 is radially locked relative to the central tube 2, the damping mechanism 4 takes effect between the wheel body 1 and the central tube 2 to form resistance in the rotation direction.

[0083] The sliding clutch 3 is provided with a multi-stage limiter 5, which is used to limit the distance of the driven displacement of the sliding clutch 3 in multiple stages. The sliding clutch 3 can be locked with one or more damping mechanisms 4 under the simultaneous action of the elastic member and the multi-stage limiter 3.

[0084] Specifically, the multi-stage limiting member 5 is located on one side of the damping mechanism 4 and is opposite to the side of the elastic member, such as Figure 3 , Figure 4 As shown;

[0085] The multi-stage limiter 5 is used to limit the displacement distance of the sliding clutch 3 in the driving direction of the elastic member, and the sliding clutch 3 is matched with a corresponding number of damping mechanisms 4 by limiting the displacement distance, so as to achieve the selection of the resistance stage.

[0086] In this embodiment, the multi-stage limiting member 5 is provided with a sloped limiting structure 51, and the sloped limiting structure 51 is a tubular structure with a sloped surface, such as Fig.11 , Fig.12 As shown;

[0087] The slope surface of the slope-type limiting structure 51 cooperates with the sliding clutch member 3 to offset each other. Fig.10 As shown;

[0088] By changing the position of the sliding clutch 3 against each other on the slope, the limit distance of the displacement of the sliding clutch 3 in the driving direction by the multi-stage limiting member 5 can be changed under the effect of the slope height difference;

[0089] When the resistance gear is actually adjusted, the contact point of the sliding clutch 3 on the slope surface of the slope-type limiting structure 51 can be changed by controlling the rotation of the multi-speed limiter 5, and the spring 31 on the opposite side drives the sliding clutch 3 to move in the direction of the damping mechanism 4 to achieve the matching lock with the damping mechanism 4. By abutting against the sliding clutch 3 through the height difference of the slope surface, the displacement limit distance of the sliding clutch 3 in the driving direction of the multi-speed limiter 5 can be changed. In this way, the driving force and the limiting force can be applied in two directions respectively, and the matching lock of the sliding clutch 3 and one or more resistance mechanisms 4 can be achieved by adjusting the limiting distance, that is, the resistance gear adjustment between the wheel body 1 and the center tube 2 is achieved.

[0090] Furthermore, the surface of the sloped limiting structure 51 is provided with the same number of gear slots 32 as the damping mechanism 4, such as Fig.11 , Fig.12 As shown;

[0091] The surface of the sliding clutch 3 is provided with a positioning block 33 adapted to the gear slot 32. Figure 6 , Figure 8 As shown;

[0092] When the slope-type limiting structure 51 and the sliding clutch member 3 cooperate with each other, the positioning block 33 can be engaged in the corresponding gear slot 32 to achieve locking. Fig.10 As shown;

[0093] It should be noted that the technical means for limiting the displacement distance in the driving direction of the sliding clutch 3 and locking it in this embodiment is only a preferred embodiment and should not be limited to adjusting the limiting distance by rotating the multi-stage limiter 5.

[0094] In this embodiment, the edge of the shift slot 32 is provided with an arc chamfer 36, such as Fig.11 , Fig.12 As shown;

[0095] The end of the positioning block 33 for clamping in the gear slot 32 is an arc-shaped end 37. Figure 6 , Figure 7 As shown;

[0096] The coordination of the arc chamfer 36 and the arc-shaped end portion 37 can facilitate the positioning block 33 to escape from the gear slot 32 when the multi-gear limiting member 5 rotates.

[0097] In this embodiment, the multi-speed limiter 5 is connected to a gear adjustment control member 6;

[0098] The gear shift control member 6 is rotatably connected to one side of the wheel body 1. Figure 2 As shown;

[0099] The gear adjustment control member 6 is fixedly connected to the multi-gear limit member 5, such as Figure 3 , Figure 4 As shown; the gear adjustment control member 6 is used to control the rotation of the multi-gear limit member 5.

[0100] A gear shifting seat 62 is formed on one side of the wheel body 1 along the axial direction of the central tube 2. Figure 4 As shown;

[0101] The shift seat 62 is a cylindrical structure, as shown in 14;

[0102] One end of the shifting seat 62 is fixedly connected to one side of the wheel body 1. Fig.13 As shown;

[0103] The gear shift control member 6 is a sleeve-shaped structure, which is rotatably sleeved on one side of the gear shift seat 62. Figure 3 As shown;

[0104] The gear shift control member 6 can be sleeved on the gear shift seat 62 to be rotated by the user on one side of the wheel body 1;

[0105] The gear shift control member 6 passes through the gear shift seat 62 and is control-connected with the multi-gear position limiting member 5 . By operating the gear shift control member 6 to rotate along the gear shift seat 62 , the multi-gear position limiting member 5 can be driven to rotate in the wheel body 1 .

[0106] The end surface of the shift seat 62 is formed with a shift travel groove 65. Fig.14 As shown;

[0107] A gear travel rod 66 is movably arranged in the gear travel groove 65. Fig.14 As shown;

[0108] The gear travel rod 66 is fixed to one end of the multi-gear limiter 5. Fig.12 As shown;

[0109] The gear stroke rod 66 is connected between the gear adjustment control member 6 and the multi-gear position limiting member 5, and the gear adjustment control member 6 and the multi-gear position limiting member 5 are fixedly connected through the gear stroke rod 66;

[0110] Since the gear stroke rod 66 moves through the gear stroke slot 65, it can only move within the range of the gear stroke slot 65, so that the rotation stroke of the gear shift control component 6 can be limited. By limiting the rotation range of the gear shift control component 6, the problem of damage caused by excessive rotation when the user rotates the gear shift control component 6 can be effectively avoided.

[0111] In this embodiment, the outer wall of the gear shift seat 62 is provided with the same number of gear position marks 64 as the damping mechanism 4, such as Fig.14 As shown;

[0112] The gear shift control member 6 rotatably mounted on the gear shift seat 62 has a window 63 on its surface. Figure 3 As shown;

[0113] When the gear shift control member 6 rotates around the gear shift seat 62 , the user can observe the current gear position mark 64 through the window 63 , so as to clearly know the currently selected gear position.

[0114] An operating auxiliary member 61 is provided on the surface of the gear shift control member 6;

[0115] In this embodiment, the operation auxiliary member 61 is a petal-shaped protrusion structure, such as Figure 3 , Fig.11 As shown; this is only a preferred embodiment, the operating auxiliary member 61 may also be a structure such as an anti-slip thread;

[0116] The operation auxiliary component 61 is used to facilitate the user's operation and control of the gear shift control component 6 .

[0117] In this embodiment, a travel component is provided between the wheel body 1 and the central tube 2 for limiting the rotation travel range of the wheel body 1 relative to the central tube 2;

[0118] The travel assembly includes a travel disc 71, and the travel disc 71 is sleeved on the surface of the clutch base 21. Fig. 9 , Fig.16 As shown;

[0119] The travel disc 71 is fixed relative to the central tube 2 by being sleeved with the clutch base 21;

[0120] Furthermore, the travel disc 71 is integrally formed with the clutch member base 21;

[0121] A strip hole 72 is formed on the travel plate 71, and a travel rod 73 movably passes through the strip hole 72. Fig. 9 , Fig.16 As shown; it can move along the range of the strip hole 72;

[0122] The travel rod 73 passes through the strip hole 72;

[0123] A spiral groove 7 is formed on the side of the inner side of the wheel body 1 corresponding to the stroke rod 73. Fig.15 As shown;

[0124] The travel rod 73 passes through the strip hole 72 and can be slidably embedded in the spiral groove 7. When the wheel body 1 rotates relative to the central tube 2, the travel rod 73 can move within the range of the spiral groove 7.

[0125] The effect of limiting the rotational stroke of the wheel body 1 relative to the central tube 2 can be achieved by the cooperation between the travel rod 73 and the screw groove 7;

[0126] A travel rod pressing piece 74 is provided on the side of the travel disc 71 away from the spiral groove 7 , and the travel rod pressing piece 74 can limit the travel rod 73 .

[0127] Example 2

[0128] This embodiment is different from the embodiment 1 in that, in this embodiment, three groups of damping mechanisms 4 are provided between the wheel body 1 and the center tube 2 , and the damping mechanisms 4 are used to form resistance in the rotation direction between the wheel body 1 and the center tube 2 .

[0129] In this embodiment, the number of the gear slots 32 is the same as that of the damping mechanism 4, and three gear slots 32 are provided on the surface of the slope-type limiting structure 51;

[0130] In this embodiment, the outer wall of the gear adjustment seat 62 is provided with three gear position marks 64, the same number as the damping mechanism 4;

[0131] In this embodiment, the elastic member is a spring leaf, which is arranged in the clutch base 21, one end of which is against the inner wall of the clutch base 21, and the other end is against the sliding clutch 3. The driving force generated by the extension and rebound of the spring leaf can push the sliding clutch 3 to extend out of the clutch base 21.

[0132] Example 3

[0133] This embodiment is different from the embodiment 1 in that, in this embodiment, four groups of damping mechanisms 4 are provided between the wheel body 1 and the central tube 2 , and the damping mechanisms 4 are used to form resistance in the rotation direction between the wheel body 1 and the central tube 2 .

[0134] In this embodiment, the number of the gear slots 32 is the same as that of the damping mechanism 4, and the surface of the slope-type limiting structure 51 is provided with four gear slots 32;

[0135] In this embodiment, the outer wall of the gear adjustment seat 62 is provided with four gear position marks 64, the same number as the damping mechanism 4;

[0136] In this embodiment, the elastic member is a rubber spring, which is arranged in the clutch base 21, one end of which is against the inner wall of the clutch base 21, and the other end is against the sliding clutch 3. The driving force generated by the extension and rebound of the spring leaf can push the sliding clutch 3 to extend out of the clutch base 21.

[0137] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A damping adjustable abdominal wheel, comprising A wheel body (1) and a center tube (2) movably passing through the wheel body (1); Features: Two or more damping mechanisms (4) are provided between the wheel body (1) and the central tube (2) for forming a resistance in the rotation direction between the wheel body (1) and the central tube (2), and the damping mechanisms (4) are fixed relative to the wheel body (1); A sliding clutch (3) is provided between the damping mechanism (4) and the central tube (2) and is displaced along the axial direction of the central tube (2), and the sliding clutch (3) is radially locked with the central tube (2); the sliding clutch (3) is provided with an elastic member for driving it to displace in the direction of the damping mechanism (4); The sliding clutch (3) is provided with a multi-stage limiting member (5), and the multi-stage limiting member (5) is used to limit the displacement distance of the sliding clutch (3) driven by the elastic member in multiple stages. The sliding clutch (3) can be locked in cooperation with one or more damping mechanisms (4) under the simultaneous action of the elastic member and the multi-stage limiting member (5).

2. The damping-adjustable abdominal wheel according to claim 1, characterized in that: The multi-stage limiting member (5) is provided with a slope-type limiting structure (51), and the slope-type limiting structure (51) is movably abutted against the sliding clutch member (3). By adjusting the point where the slope-type limiting structure (51) abuts against the sliding clutch member (3), the length limit of the displacement of the sliding clutch member (3) in the driven direction by the multi-stage limiting member (5) can be changed.

3. The damping-adjustable abdominal wheel according to claim 2, characterized in that: The multi-speed limiting component (5) comprises two or more speed slots (32), wherein the speed slots (32) are arranged on the surface of the slope-type limiting structure (51); a positioning block (33) adapted to the speed slots (32) is arranged on the surface of the sliding clutch component (3), and when the sliding clutch component (3) and the slope-type limiting structure (51) are matched and abutted against each other, the positioning block (33) can be engaged with the speed slots (32).

4. The damping-adjustable abdominal wheel according to claim 3, characterized in that: The edge of the gear slot (32) is provided with an arc chamfer (36), and the end of the positioning block (33) used for clamping in the gear slot (32) is an arc-shaped end (37).

5. The damping-adjustable abdominal wheel according to any one of claims 1 to 4, characterized in that: The multi-speed limiter (5) is connected to a gear shift control member (6), and the gear shift control member (6) is rotatably arranged on one side of the wheel body (1). The gear shift control member (6) is used to control the rotation of the multi-speed limiter (5) to achieve multi-stage limitation of the displacement distance of the sliding clutch member (3) in the driven direction.

6. The damping-adjustable abdominal wheel according to claim 5, characterized in that: The gear shift control component (6) is connected to a gear shift seat (62), the gear shift seat (62) is fixed to one side of the wheel body (1), and the gear shift control component (6) is rotatably sleeved on the gear shift seat (62).

7. The damping-adjustable abdominal wheel according to claim 6, characterized in that: The gear shift control member (6) is provided with a gear stroke rod (66) axially along the gear shift seat (62); an end surface of the gear shift seat (62) is provided with a gear stroke groove (65); the gear stroke rod (66) movably penetrates the gear stroke groove (65); the gear stroke rod (66) is slidably arranged in the gear stroke groove (65) to limit the rotation range of the gear shift control member (6).

8. The damping-adjustable abdominal wheel according to claim 6, characterized in that: A window (63) is provided on the side of the gear shift control member (6), and more than two gear position marks (64) are provided on the side of the gear shift seat (62). When the gear shift control member (6) rotates relative to the gear shift seat (62), each gear position mark (64) can be revealed through the window (63).

9. The damping-adjustable abdominal wheel according to claim 1, characterized in that: The sliding clutch (3) is provided with a clutch base (21), the clutch base (21) is fixed to the center tube (2), the sliding clutch (3) is sleeved in the clutch base (21) along the axial direction of the center tube (2), and an axial limiting component is provided between the clutch base (21) and the sliding clutch (3) for realizing radial locking of the sliding clutch (3) and the center tube (2).

10. The damping-adjustable abdominal wheel according to claim 9, characterized in that: A stroke assembly for limiting the rotational stroke of the wheel body (1) relative to the center tube (2) is provided between the wheel body (1) and the center tube (2); the stroke assembly comprises a stroke disc (71) fixed relative to the center tube (2); the stroke disc (71) is sleeved on the surface of the clutch base (21); the stroke disc (71) and the clutch base (21) are integrally formed.

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