Anti-play rotating assembly and standing posture abduction trainer

Abstract

The utility model relates to the technical field of fitness equipment, in particular to an anti-movement rotating assembly and a standing posture abduction trainer. The anti-movement rotating assembly comprises a rotating pipe and a positioning shaft assembly, the positioning shaft assembly comprises a center shaft, a plurality of fixing pipes and a plurality of limiting sleeves, the center shaft is sleeved with the fixing pipes at intervals in the axial direction, the limiting sleeves are arranged between the center shaft and the fixing pipes in a penetrating mode, and two of the fixing pipes are fixedly connected to the two axial ends of the center shaft through limiting covers; the two ends of the rotating pipe are rotationally matched on the center shaft through rolling bearings, inner rings of the rolling bearings abut against the ends of the limiting sleeves at the corresponding positions, and the limiting sleeves are fixed on the center shaft in the axial direction. The fixed pipe and the center shaft are connected through the limiting cover, so that the center shaft keeps still in the using process, a gap between the rotating pipe and the fixed pipe is kept when the rotating pipe rotates by controlling the length of the limiting sleeve, mutual friction between the rotating pipe and the fixed pipe can be prevented, and axial movement of the rotating pipe is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building equipment technical field, concretely relates to a kind of anti-creep rotating assembly and standing posture abduction trainer. BACKGROUND

[0002] Rotating assembly is widely applied in the rotating position of body-building equipment, for example, the upper and lower rotating load frame of standing posture abduction trainer and the upper and lower rotating operating arm of triceps trainer, and the rotating assembly can realize the rotation of load component or operating component around it. However, the existing rotating assembly structure is generally fixed with fixed tubes on the frame first, then the rotating shaft is passed through the fixed tubes and fixed on the fixed tubes through bearings, and then the rotating tube is sleeved on the rotating shaft through bearings, and the load component or operating component is fixed on the rotating tube. Because there is a gap between the rotating tube and the fixed tube of the frame, and there is no limit on both sides of the rotating tube, the rotating tube will shake during operation, which affects the use of the product. SUMMARY

[0003] The utility model aims at providing a kind of anti-creep rotating assembly and standing posture abduction trainer, which can prevent the axial creep of rotating tube during operation.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0005] The anti-creep rotating assembly comprises a rotating tube and a positioning shaft assembly. The positioning shaft assembly comprises a central shaft, fixed tubes and a limiting sleeve. The number of fixed tubes is two, and each is fixedly connected to the axial end of the central shaft through a limiting cap. The rotating tube is rotatably connected to the central shaft through rolling bearings on both ends and is located between the two fixed tubes. An axial gap is left between the rotating tube and the fixed tube. The limiting sleeve is sleeved on the central shaft on both sides of the rotating tube, and the axial position of the limiting sleeve on the central shaft is fixed. The end of the limiting sleeve close to the rolling bearing abuts against the inner ring of the rolling bearing.

[0006] Preferably, the limiting cap comprises a tube end cover, a spacer and a shaft end cover. The tube end cover is fixedly combined with the fixed tube and abuts against the end of the limiting sleeve. The shaft end cover is fixedly combined with the central shaft. The spacer is connected to the tube end cover and the shaft end cover on both sides.

[0007] Preferably, a stop opening is provided at the pipe opening of each fixed tube at the two ends of the central shaft. The tube end cover is embedded in the stop opening and fixedly combined with the fixed tube.

[0008] Preferably, a fastening hole is provided at the stop opening. An installation hole is provided at the position corresponding to the fastening hole on the tube end cover. The tube end cover is locked and fixed in the stop opening by passing the fastener through the installation hole and the fastening hole.

[0009] Preferably, the end of the central shaft is provided with a threaded hole extending along the axial direction of the central shaft, the shaft end cover is provided with a matching hole at the position corresponding to the threaded hole, and the shaft end cover is locked and fixed on the end of the central shaft by means of a fastener penetrating the matching hole and the threaded hole.

[0010] Preferably, the two ends of the central shaft are further respectively provided with an end cover, the end cover is also provided with a through hole at the position corresponding to the matching hole, and the fastener penetrates the through hole, the matching hole and the threaded hole in sequence.

[0011] Preferably, the rotating pipe is provided with a limiting body at the pipe opening or at the position close to the pipe opening of the rotating pipe, and the other end face of the rolling bearing away from the limiting sleeve abuts against the limiting body.

[0012] Preferably, the number of the rotating pipes is one, the number of the limiting sleeves is two, and one end of each limiting sleeve abuts against the inner ring of the rolling bearing and the other end abuts against the limiting cover.

[0013] Preferably, the number of the rotating pipes is more than two, the number of the limiting sleeves is more than three, the two ends of the limiting sleeve located in the middle abut against the inner rings of the rolling bearings, the limiting sleeves located on the two sides are between the central shaft and the fixed pipes, and one end of each limiting sleeve located on the two sides abuts against the limiting cover and the other end abuts against the inner ring of the rolling bearing.

[0014] The utility model also provides a station posture abduction trainer, including frame, pedal assembly, leg pad subassembly, rope disc, load frame and transmission rope, the pedal assembly rotates and cooperates in frame and is connected with leg pad subassembly fixedly, transmission rope's one end connects rope disc and the other end connects pedal assembly, load frame and rope disc rotate and cooperate in frame through above-mentioned anti -chasing rotation subassembly, load frame and rope disc are all fixedly installed on rotating pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The rotating assembly of the utility model comprises a rotating pipe and a positioning shaft assembly, the positioning shaft assembly comprises a central shaft, a fixed pipe and a limiting sleeve, the fixed pipe and the central shaft are connected and fixed through a limiting cover so that the central shaft remains stationary during use, the axial position of the limiting sleeve on the central shaft is fixed by controlling the length of the limiting sleeve or other ways, and then the rotating pipe remains the gap between the rotating pipe and the fixed pipe during rotation, the rotating pipe and the fixed pipe are prevented from rubbing against each other, and the axial movement of the rotating pipe is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an axial section view of the anti-chasing rotating assembly in the utility model embodiment 1.

[0018] Figure 2 It is an axial section view of the anti-chasing rotating assembly in the utility model embodiment 1.Figure 1 P is shown in the partial enlarged view.

[0019] Figure 3 The utility model discloses a limit cover in fixed pipe is schematic drawing.

[0020] Figure 4 For the utility model embodiment 2 anti -migration rotating assembly axis section view.

[0021] Figure 5 For the utility model station posture abduction trainer structure schematic view.

[0022] Figure 6 For Figure 5 M is shown in the partial enlarged view.

[0023] Marked in the figure: 101, rack;102, pedal assembly;103, leg pad assembly;104, rope disc;105, load frame;106, transmission rope;10, rotating pipe;11, rolling bearing;12, positioning step;21, center shaft;22, fixed pipe;23, limit sleeve;24, end cover;30, limit cover;31, pipe end cover;32, spacer;33, shaft end cover. Specific implementation

[0024] In order to let the above-mentioned features and advantages of the utility model more obvious easy to understand, the following specific examples are raised, and cooperate with the drawings, and make detailed description as follows. Example 1

[0025] As Figures 1-3 Shown, the embodiment provides a kind of anti -migration rotating assembly, including rotating pipe 10 and positioning shaft component, the positioning shaft component includes center shaft 21, two respectively the fixed pipe 22 of being set in the outer of center shaft 21 axial both ends and two respectively the limit sleeve 23 of being passed in between center shaft 21 and each fixed pipe 22, two fixed pipes 22 are fixedly connected in the axial both ends of center shaft 21 by limit cover 30.

[0026] In the embodiment, the number of the rotating tube 10 is one, the two ends of the rotating tube 10 are rotatably connected to the central shaft 21 through the rolling bearing 11 and located between the two fixed tubes 22, the rolling bearing 11 is a tapered rolling bearing, the rotating tube 10 is provided with a limiting body at the tube opening, the limiting body is a positioning step 12, the other end surface of the outer ring of the rolling bearing 11 away from the limiting sleeve 23 abuts against the positioning step 12, the displacement of the rolling bearing 11 away from the limiting sleeve 23 is limited by the positioning step 12, the inner ring of the rolling bearing 11 is interference fit with the central shaft 21 and the outer ring of the rolling bearing 11 is interference fit with the rotating tube 10. It should be noted that in other examples, the limiting body can also be a positioning shoulder, the positioning shoulder is located at the position of the central shaft 21 close to the tube opening of the rotating tube 10, and the other end surface of the inner ring of the rolling bearing 11 away from the limiting sleeve 23 abuts against the positioning shoulder.

[0027] In the embodiment, the limiting cover 30 includes a tube end cover 31, a spacer 32 and a shaft end cover 33, the tube end cover 31 is fixedly combined with the fixed tube 22 and abuts against the end of the limiting sleeve 23, the shaft end cover 33 is fixedly combined with the central shaft 21, the two sides of the spacer 32 are connected with the tube end cover 31 and the shaft end cover 33 respectively, so that the relative position between the fixed tube 22 and the central shaft 21 is fixed and does not move, and when the fixed tube 22 is fixedly installed on the external carrier, the central shaft 21 also remains stationary during use.

[0028] Specifically, the spacer 32 is a hollow ring, and the central shaft 21 passes through the spacer 32.

[0029] Specifically, the tube openings of the two fixed tubes 22 are respectively provided with a stopper, the tube end cover 31 is embedded in the stopper, a fastening hole is formed in the stopper, the tube end cover 31 is respectively provided with a mounting hole at a position corresponding to the fastening hole, and the tube end cover 31 is locked and fixed in the stopper by a fastener passing through the mounting hole and the fastening hole.

[0030] Specifically, the end of the central shaft 21 is provided with a threaded hole extending along the axial direction of the central shaft 21, the shaft end cover 33 is respectively provided with a fitting hole at a position corresponding to the threaded hole, and the shaft end cover 33 is locked and fixed on the end of the central shaft 21 by a fastener passing through the fitting hole and the threaded hole. In addition, the two ends of the central shaft 21 are respectively provided with an end cover 24, the end cover 24 is also provided with a through hole at a position corresponding to the fitting hole, and the fastener passes through the through hole, the fitting hole and the threaded hole in sequence.

[0031] In this embodiment, two limiting sleeves 23 are provided and fitted onto the central shafts 21 on both sides of the rotating tube 10. One end of each limiting sleeve 23 abuts against the inner ring of the rolling bearing 11, and the other end abuts against the limiting cover 30. The axial position of the limiting sleeves 23 on the central shaft 21 is fixed. Thus, in a specific application scenario, the fixed tube 22 is fixed to the external carrier, and the fixed tube 22, the limiting cover 30, and the central shaft 21 remain stationary. By controlling the length of the limiting sleeves 23, the rotating tube 10 maintains a gap with the fixed tube 22 during rotation, which can prevent the rotating tube 10 and the fixed tube 22 from rubbing against each other and prevent the rotating tube 10 from moving axially. Example 2

[0032] like Figure 4 As shown, this embodiment provides an anti-slip rotation assembly, including a rotating tube 10 and a positioning shaft assembly. The positioning shaft assembly includes a central shaft 21, a fixed tube 22 and a limiting sleeve 23. The two fixed tubes 22 are respectively fixedly connected to the two axial ends of the central shaft 21 through limiting covers 30.

[0033] In this embodiment, there are two rotating tubes 10. The two ends of the two rotating tubes 10 are respectively rotatably fitted on the central shaft 21 through rolling bearings 11 and located between two fixed tubes 22. The rolling bearings 11 are specifically tapered rolling bearings. A limiting body is provided at the opening of the rotating tube 10. The limiting body is specifically a positioning step 12. The other end face of the outer ring of the rolling bearing 11 away from the limiting sleeve 23 abuts against the positioning step 12. The positioning step 12 restricts the displacement of the rolling bearing 11 away from the limiting sleeve 23. The inner ring of the rolling bearing 11 is interference-fitted with the central shaft 21, and the outer ring of the rolling bearing 11 is interference-fitted with the rotating tube 10.

[0034] In this embodiment, the limiting cover 30 includes a tube end cover 31, a spacer 32, and a shaft end cover 33. The tube end cover 31 is fixedly connected to the fixed tube 22 and abuts against the end of the limiting sleeve 23 at that location. The shaft end cover 33 is fixedly connected to the central shaft 21. The two sides of the spacer 32 are respectively connected to the tube end cover 31 and the shaft end cover 33. This makes the relative position between the fixed tube 22 and the central shaft 21 fixed. When the fixed tube 22 is fixedly installed on the external carrier, the central shaft 21 also remains stationary during use.

[0035] Specifically, the spacer 32 is a hollow ring, and the central shaft 21 passes through the spacer 32.

[0036] Specifically, the pipe mouths of the two fixed pipes 22 are respectively provided with a stopper, the pipe end protective cover 31 is embedded in the stopper, a fastening hole is arranged at the stopper, the pipe end protective cover 31 is respectively provided with a mounting hole at the position corresponding to the fastening hole, and the pipe end protective cover 31 is locked and fixed in the stopper by means of the fastener penetrating the mounting hole and the fastening hole.

[0037] Specifically, the end of the central shaft 21 is provided with a threaded hole extending along the axial direction of the central shaft 21, the shaft end protective cover 33 is respectively provided with a matching hole at the position corresponding to the threaded hole, and the shaft end protective cover 33 is locked and fixed on the end of the central shaft 21 by means of the fastener penetrating the matching hole and the threaded hole. In addition, the two ends of the central shaft 21 are respectively provided with an end cover 24, the end cover 24 is also provided with a through hole at the position corresponding to the matching hole, and the fastener penetrates the through hole, the matching hole and the threaded hole in sequence.

[0038] In the embodiment, the number of the limiting sleeves 23 is three, and the limiting sleeves 23 are sleeved on the central shaft 21 on both sides of the rotating pipe 10. The limiting sleeve 23 located in the middle is between the central shaft 21 and each fixed pipe 22, and the two ends of the limiting sleeve 23 located in the middle abut against the inner ring of the rolling bearing 11. The limiting sleeve 23 located on both sides abuts against the limiting cover 30 at one end and abuts against the inner ring of the rolling bearing 11 at the other end, and the axial position of the limiting sleeve 23 on the central shaft 21 is fixed. In this way, in a specific application scenario, the fixed pipe 22 is fixed on an external carrier, and the fixed pipe 22, the limiting cover 30 and the central shaft 21 remain stationary. By controlling the length of the limiting sleeve 23, the gap between the rotating pipe 10 and the fixed pipe 22 can be maintained during rotation, which can prevent the rotating pipe 10 and the fixed pipe 22 from rubbing against each other and prevent the axial movement of the rotating pipe 10. The limiting sleeve 23 located in the middle separates different rotating pipes 10 on the central shaft 21 from each other. In practice, a middle pipe can be sleeved outside the limiting sleeve 23 located in the middle, and the middle pipe is fixed on the external carrier and maintains a gap with the rotating pipe 10. Embodiment 3

[0039] As Figures 5-6As shown, the embodiment provides a standing posture abduction trainer, which comprises a rack 101, a pedal assembly 102, a leg pad assembly 103, a rope disc 104, a load rack 105 and a transmission rope 106, the pedal assembly 102 is rotationally fitted on the rack 101 and fixedly connected with the leg pad assembly 103, one end of the transmission rope 106 is connected with the rope disc 104 and the other end is connected with the pedal assembly 102, the load rack 105 and the rope disc 104 are rotationally fitted on the rack 101 through an anti-wandering rotation assembly, the anti-wandering rotation assembly is constructed as same as the above-mentioned embodiment 1, the load rack 105 and the rope disc 104 are both fixedly installed on the rotation tube 10, the counterweight pieces are hung on the load rack 105, the trainer stands on the pedal assembly 102, the legs push the leg pad assembly 103 outward to drive the pedal assembly 102 to expand outward relative to the rotational connection point of the pedal assembly 102 with the rack 101, and in the process of expanding outward, the rope disc 104 and the load rack 105 are pulled by the transmission rope 106 to rotate upward around the central shaft 21, and the counterweight pieces on the load rack 105 are used to provide training resistance.

[0040] The basic principle, main features and advantages of the present application are shown and described above, and those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application, and the scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Anti-rotation assembly, characterized in that: The application relates to a rotating pipe and positioning shaft assembly, which comprises a rotating pipe and a positioning shaft assembly, the positioning shaft assembly comprises a central shaft, fixing pipes and limiting sleeves, the number of the fixing pipes is two, the fixing pipes are fixedly connected to the axial two ends of the central shaft through limiting covers respectively, the rotating pipe is rotatably matched on the central shaft through rolling bearings at the two ends of the rotating pipe and is located between the two fixing pipes, an axial gap is left between the rotating pipe and the fixing pipes, the limiting sleeves are sleeved on the central shaft at the two sides of the rotating pipe and the axial positions of the limiting sleeves on the central shaft are fixed, and the end of the limiting sleeve close to the rolling bearing abuts against the inner ring of the rolling bearing.

2. The anti -walk rotation assembly of claim 1, wherein: The limiting cover comprises pipe end protective covers, a spacer and shaft end protective covers, the pipe end protective covers are fixedly combined with the fixing pipes and abut against the end portions of the limiting sleeves, the shaft end protective covers are fixedly combined with the central shaft, and the two sides of the spacer are connected with the pipe end protective covers and the shaft end protective covers respectively.

3. The anti -walk rotation assembly of claim 2, wherein: The pipe openings of the two fixing pipes at the two ends of the central shaft are respectively provided with stop mouths, the pipe end protective covers are embedded in the stop mouths and fixedly combined with the fixing pipes.

4. The anti -walk rotation assembly of claim 3, wherein: Fastening holes are formed in the stop mouths, mounting holes are respectively arranged at the positions corresponding to the fastening holes of the pipe end protective covers, and the pipe end protective covers are locked and fixed in the stop mouths by being penetrated by fasteners in the mounting holes and the fastening holes.

5. The anti -walk rotation assembly of claim 2, wherein: Threaded holes extending along the central shaft are formed in the end portions of the central shaft, matching holes are respectively arranged at the positions corresponding to the threaded holes of the shaft end protective covers, and the shaft end protective covers are locked and fixed on the end portions of the central shaft by being penetrated by fasteners in the matching holes and the threaded holes.

6. The anti-channeling rotational assembly of claim 5, wherein: The two ends of the central shaft are also respectively provided with end covers, through holes are also formed in the end covers at the positions corresponding to the matching holes, and the fasteners are sequentially penetrated in the through holes, the matching holes and the threaded holes.

7. An anti-rotation assembly according to any one of claims 1 to 6, wherein: Limiting bodies are arranged at the pipe openings of the rotating pipe or the positions close to the pipe openings of the rotating pipe of the central shaft, and the other end face of the rolling bearing away from the limiting sleeve abuts against the limiting body.

8. The anti-channeling rotational assembly of claim 7, wherein: The number of the rotating pipes is one, and the number of the limiting sleeves is two, one end of each limiting sleeve abuts against the inner ring of the rolling bearing and the other end abuts against the limiting cover.

9. The anti-channeling rotational assembly of claim 7, wherein: The number of the rotating pipes is more than two, and the number of the limiting sleeves is more than three, the two ends of the limiting sleeve located in the middle abut against the inner rings of the rolling bearings, the limiting sleeves located at the two sides are between the central shaft and the fixing pipes, one end of each limiting sleeve located at the two sides abuts against the limiting cover and the other end abuts against the inner ring of the rolling bearing.

10. A standing position abduction trainer, comprising a frame, a pedal assembly, a leg pad assembly, a rope disc, a load frame and a transmission rope, the pedal assembly is pivotally connected to the frame and fixedly connected with the leg pad assembly, one end of the transmission rope is connected to the rope disc and the other end is connected to the pedal assembly, characterized in that: The load frame and the rope disc are rotatably matched on the frame through the anti-channeling rotating assembly according to any one of claims 1 to 8, and the load frame and the rope disc are fixedly installed on the rotating pipe.

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