CN212631564U - Guide wheel type adjusting mechanism of rowing machine - Google Patents

Abstract

The utility model discloses a guide wheel type adjusting mechanism of a rowing machine, wherein a sleeve is provided with a positioning screw hole, and the upper end part and the lower end part are correspondingly provided with an upper guide wheel bracket and a lower guide wheel bracket; the upper front guide wheel bracket and the upper rear guide wheel bracket of the upper guide wheel bracket are correspondingly arranged on the front wall and the rear wall of the sleeve; the lower front guide wheel bracket and the lower rear guide wheel bracket of the lower guide wheel bracket are correspondingly arranged on the front wall and the rear wall of the sleeve. The upper front guide wheel and the upper rear guide wheel of the guide wheel are correspondingly and rotatably connected to the upper front guide wheel frame and the upper rear guide wheel bracket through half-hollow rivets, and the lower front guide wheel and the lower rear guide wheel of the lower guide wheel are correspondingly and rotatably connected to the lower front guide wheel bracket and the lower rear guide wheel bracket through half-hollow rivets. When the sleeve is adjusted to the required height on the upright post, the polished rod part of the adjusting pin is inserted into a corresponding hole position on the front end surface of the upright post, and then the screw rod part is screwed on the positioning screw hole of the sleeve. The guide wheel type adjusting mechanism is stable in structure and smooth in adjustment, and avoids the phenomenon of holding in the adjusting process.

Description

Guide wheel type adjusting mechanism of rowing machine

Technical Field

The utility model belongs to the technical field of body-building apparatus, concretely relates to height adjusting mechanism suitable for rowing machine.

Background

At present, the height adjusting mechanism of the rowing machine on the market adopts a sliding type adjusting structure of a sleeve 3 and a plastic bushing 2, the positioning is locked by an elastic pull pin 4, and the height is adjusted by sliding up and down. When the height of the existing height adjusting mechanism is adjusted, the elastic pull pin 4 needs to be pulled out, the sleeve 3 with the plastic bushing 2 is supported to slide up and down on the upright post 1, the elastic pull pin 4 is released after the height is adjusted to the required height, the elastic pull pin 4 is inserted into a hole position with the corresponding height, and then the safety bolt 5 is inserted, so that the height adjustment is completed. The height adjustment friction of the existing sliding mode is large, and particularly when the height is adjusted downwards, the phenomenon that the height cannot be adjusted is easily suppressed due to the fact that the angle of the upright post 1 is changed along with the adjustment of the height.

SUMMERY OF THE UTILITY MODEL

For solving the problems existing in the prior art, the utility model provides a guide wheel type adjusting mechanism of a rowing machine. The guide wheel type adjusting mechanism is stable in structure and smooth in adjustment, and avoids the phenomenon of holding in the adjusting process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a guide wheel type adjusting mechanism of a rowing machine comprises a sleeve and an adjusting pin; the sleeve is movably sleeved on the upright post of the rowing machine, and the adjusting pin is inserted on the sleeve and the upright post; also comprises a guide wheel; wherein the content of the first and second substances,

the sleeve is provided with a positioning screw hole; and upper and lower guide wheel brackets are correspondingly arranged on the upper and lower end parts of the sleeve; the upper guide wheel bracket comprises an upper front guide wheel bracket and an upper rear guide wheel bracket, and the upper front guide wheel bracket and the upper rear guide wheel bracket are correspondingly arranged on the front wall and the rear wall of the sleeve; the lower guide wheel bracket comprises a lower front guide wheel bracket and a lower rear guide wheel bracket, and the lower front guide wheel bracket and the lower rear guide wheel bracket are correspondingly arranged on the front wall and the rear wall of the sleeve;

the guide wheel is provided with an upper guide wheel and a lower guide wheel; the upper guide wheel comprises an upper front guide wheel and an upper rear guide wheel, and the upper front guide wheel and the upper rear guide wheel are correspondingly and rotatably connected to the upper front guide wheel bracket and the upper rear guide wheel bracket through half-hollow rivets; the lower guide wheel comprises a lower front guide wheel and a lower rear guide wheel, and the lower front guide wheel and the lower rear guide wheel are correspondingly and rotatably connected to the lower front guide wheel bracket and the lower rear guide wheel bracket through half-hollow rivets.

The adjusting pin comprises a screw rod part and a polished rod part; when the sleeve is adjusted to the required height on the upright post, the polished rod part is inserted into a corresponding hole position on the front end surface of the upright post, and then the screw rod part is screwed on a positioning screw hole of the sleeve.

The guide wheel type adjusting mechanism of the rowing machine is characterized in that the sleeve is internally tightly matched with a bushing, the bushing comprises a left half bushing and a right half bushing, the left half bushing and the right half bushing are matched with the sleeve in a shape matched manner on the left side wall and the right side wall of the sleeve, and the left half bushing and the right half bushing are correspondingly abutted to the left side surface and the right side surface of the upright post.

Compared with the prior art, the utility model provides a technical scheme has following beneficial effect:

firstly, the utility model discloses rowing machine's height adjusting mechanism adopts the guide pulley formula structure, utilizes the guide pulley to roll at the surface of stand and adjusts, compares with prior art slidingtype regulation structure, and the regulation frictional force that reduces greatly can not appear the sleeve pipe and suppress the phenomenon of adjusting motionless, effectively improves the phenomenon that the height adjustment can suppress among the prior art.

Secondly, the utility model discloses the adjusting pin adopts the mode of spiro union to peg graft on sleeve pipe and stand, effectively promotes height control mechanism's stability.

Thirdly, through the arrangement of the arc-shaped left and right bushings, the stability of the sleeve sleeved on the upright post is effectively improved, and the friction force of the sleeve on the upright post is reduced to the maximum extent;

fourthly, the utility model discloses rowing machine's height adjusting mechanism adopts half hollow rivet 800 installation guide pulleys, is difficult to make the post is held back to the guide pulley installation, guarantees that the rolling flexibility of guide pulley is smooth and easy.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

FIG. 1 is a schematic perspective view of a height adjustment mechanism of a prior art rowing machine;

FIG. 2 is a schematic perspective exploded view of the guide wheel type adjustment mechanism of the rowing machine of the present invention;

FIG. 3 is a schematic perspective view of the guide wheel type adjusting mechanism of the rowing machine of the present invention;

fig. 4 is a schematic view of the guide wheel type adjusting mechanism of the rowing machine according to the present invention in a partially sectional structure.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.

In the claims, the specification and the drawings, unless otherwise expressly limited, to the extent that directional terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise" and the like are used, the positional or orientational relationships illustrated in the drawings are based on the positional and orientational relationships illustrated in the drawings and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention in any way.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.

In the claims, the specification and drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and limiting.

Referring now to fig. 1 to 4, a guide wheel type adjusting mechanism of a rowing machine according to the present invention includes a sleeve 100, a bushing 200, a guide wheel 300, an adjusting pin 400, and a safety pin 500.

The sleeve 100 is a hollow structure, a bushing 200 is tightly matched in the sleeve 100, and the sleeve 100 drives the bushing 200 to be movably sleeved on the upright column 600 of the rowing machine; the sleeve 100 is connected to the rowing machine body by an adjusting bracket 700.

Specifically, the bushing 200 includes a left and a right half bushings, the left and right half bushings are matched with the shape of the sleeve 100 and are tightly fitted on the left and right side walls of the sleeve 100, and the left and right half bushings are correspondingly abutted against the left and right side surfaces of the pillar 600, so that the bushing 200 is limited only in the left and right directions of the pillar 600, but not in the front and rear directions. In this embodiment, the left and right half bushings are arc-shaped, which greatly reduces the friction between the bushing and the column.

At least one side wall of the sleeve 100 is provided with a positioning insertion hole 110, and correspondingly, at least one half of the bushings are provided with positioning through holes 210 communicated with the positioning insertion hole. In this embodiment, the right sidewall of the sleeve 100 is provided with a positioning insertion hole 110, and correspondingly, the right half bushing is provided with a positioning through hole 210.

The sleeve 100 of the present invention is provided with an upper wheel bracket 120 and a lower wheel bracket 130 at the upper end and the lower end; wherein, upper idler bracket 120 includes an upper front idler bracket 121 and an upper rear idler bracket 122, and upper front idler bracket 121 and upper rear idler bracket 122 are correspondingly disposed on the front and rear walls of sleeve 100; lower idler bracket 130 includes a lower front idler bracket 131 and a lower rear idler bracket 132. lower front and rear idler brackets 131, 132 are disposed on the front and rear walls of the sleeve 100, respectively. The sleeve 100 of the present invention is further provided with a positioning screw hole 140.

The guide wheel 300 is provided with an upper guide wheel 310 and a lower guide wheel 320 corresponding to the guide wheel bracket provided on the sleeve 100. The upper guide wheel 310 comprises an upper front guide wheel 311 and an upper rear guide wheel 312, the upper front guide wheel 311 is rotatably connected to the upper front guide wheel bracket 121 through a semi-hollow rivet 800, and the upper rear guide wheel 312 is rotatably connected to the upper rear guide wheel bracket 122 through the semi-hollow rivet 800; the lower guide wheel 320 includes a lower front guide wheel 321 and a lower rear guide wheel 322, the lower front guide wheel 321 is rotatably connected to the lower front guide wheel bracket 131 by a half hollow rivet 800, and the lower rear guide wheel 322 is rotatably connected to the lower rear guide wheel bracket 132 by a half hollow rivet 800. When semi-hollow rivet 800 is installed on guide wheel 300, the two ends of semi-hollow rivet 800 are screwed and flanged for fixation, which is not easy to install guide wheel 300. When the sleeve 100 is moved up and down along the upright post 600, the upper front guide wheel 311 and the lower front guide wheel 321 roll up and down along the front end surface of the upright post 600, and the upper rear guide wheel 312 and the lower rear guide wheel 322 roll up and down along the rear end surface of the upright post 600, so that the adjusting friction force is greatly reduced, and the sleeve 100 cannot be locked and cannot be adjusted.

The adjusting pin 400 is inserted into the sleeve 100 and the upright 600. The adjusting pin 400 of the present invention includes a screw portion 410 and a polished rod portion 420. When the sleeve 100 is adjusted to a desired height on the column 600, the screw part 410 is screwed into the positioning screw hole 140 of the sleeve 100 after the screw part 420 is inserted into the corresponding hole on the front end surface of the column 600. Then, the safety pins 500 are inserted through the positioning insertion holes 110 of the sleeve 100 and the positioning through holes 210 of the bushing 200 and then inserted into the corresponding holes on the side of the pillar 600, thereby completing the height adjustment.

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

Claims (2)

1. A guide wheel type adjusting mechanism of a rowing machine comprises a sleeve (100) and an adjusting pin (400); the sleeve (100) can be movably sleeved on the upright post (600) of the rowing machine, and the adjusting pin (400) is inserted in the sleeve (100) and the upright post (600); characterized in that the device also comprises a guide wheel (300); wherein the content of the first and second substances,

the sleeve (100) is provided with a positioning screw hole (140); an upper idler bracket (120) and a lower idler bracket (130) are correspondingly arranged at the upper end part and the lower end part of the sleeve (100); the upper guide wheel bracket (120) comprises an upper front guide wheel bracket (121) and an upper rear guide wheel bracket (122), and the upper front guide wheel bracket (121) and the upper rear guide wheel bracket (122) are correspondingly arranged on the front wall and the rear wall of the sleeve (100); the lower idler bracket (130) comprises a lower front idler bracket (131) and a lower rear idler bracket (132), and the lower front idler bracket (131) and the lower rear idler bracket (132) are correspondingly arranged on the front wall and the rear wall of the sleeve (100); a guide wheel (300) provided with an upper guide wheel (310) and a lower guide wheel (320); the upper guide wheel (310) comprises an upper front guide wheel (311) and an upper rear guide wheel (312), and the upper front guide wheel (311) and the upper rear guide wheel (312) are correspondingly and rotatably connected to the upper front guide wheel bracket (121) and the upper rear guide wheel bracket (122) through semi-hollow rivets (800); the lower guide wheel (320) comprises a lower front guide wheel (321) and a lower rear guide wheel (322), and the lower front guide wheel (321) and the lower rear guide wheel (322) are correspondingly and rotatably connected to the lower front guide wheel bracket (131) and the lower rear guide wheel bracket (132) through semi-hollow rivets (800);

the adjusting pin (400) comprises a screw rod part (410) and a polished rod part (420); when the sleeve (100) is adjusted to the required height on the upright post (600), the polished rod part (420) is inserted into a corresponding hole position on the front end surface of the upright post (600), and then the screw rod part (410) is screwed on the positioning screw hole (140) of the sleeve (100).

2. The guide wheel type adjusting mechanism of the rowing machine according to claim 1, wherein the bushing (200) is tightly fitted in the sleeve (100), the bushing (200) comprises left and right half bushings which are tightly fitted on left and right side walls of the sleeve (100) in a shape fitting with the sleeve (100), and the left and right half bushings are correspondingly abutted on left and right side surfaces of the upright post (600).

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