Arm lever rotating structure with limiting function for multifunctional fitness all-in-one machine

Abstract

The utility model relates to the field of multifunctional body-building all-in-one machines, in particular to an arm lever rotating structure with a limiting function for a multifunctional body-building all-in-one machine. Comprising a sliding rod, a chuck device and an arm rod device. The sliding rod is a round pipe provided with an opening groove, a platform and two sliding rails are arranged in the sliding rod, a positioning hole is formed in the platform, the chuck device comprises two limiting chucks, a movable pin shaft with a spring is arranged on each limiting chuck and inserted into the positioning hole in the platform, a plurality of clamping grooves arranged in an arc shape are further formed in each limiting chuck, and the clamping grooves are connected with the sliding rod. A limiting chuck is arranged on the base, a center shaft of the limiting chuck is rotatably connected with an arm rod connecting seat, a clamping mechanism is arranged on the arm rod connecting seat and clamped with a clamping groove in the limiting chuck, the arm rod connecting seat is connected with an arm rod, and the arm rod device comprises an unlocking handle sleeved on the arm rod, the unlocking handle is connected with the clamping mechanism arranged on the arm rod connecting seat. The clamping mechanism can be loosened by pushing the unlocking handle, and the arm rod is allowed to rotate around the center shaft of the limiting chuck so as to replace the clamping position.

Description

Technical Field

[0001] The utility model relates to the field of multi-functional fitness machines, in particular to a rotating structure of an arm rod with a limiting function for a multi-functional fitness machine. Background Technique

[0002] At present, for the multi-functional fitness machines on the market, the rotation mode of the arm rod adopts a single chuck mode, which requires high precision and high strength of the chuck. Since it is a single-sided chuck, when the chuck is used for a long time, the overall structure is unstable, and the wear of the chuck limiting parts is too large, so it is easy to deform; at the same time, the up and down movement limit of the arm rod adopts the way of mechanism connecting rod or screw fixation, with complex structural parts and inconvenient operation. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a rotating structure of an arm rod with a limiting function for a multi-functional fitness machine, so as to effectively solve the problems put forward in the background technique.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a rotating structure of an arm rod with a limiting function for a multi-functional fitness machine, including a sliding rod, a chuck device, and an arm rod device; the sliding rod is a round tube, with a through slot provided along the length direction, and a platform running through the whole sliding rod is integrally arranged opposite to the through slot in the inner cavity. A plurality of uniformly distributed limiting holes are arranged along the length direction at the center of the platform, and a slide rail running through the sliding rod along the length direction is integrally arranged on each side of the slot in the inner cavity.

[0005] The chuck device includes a chuck mechanism, a positioning mechanism, and a limiting mechanism. The chuck mechanism includes two Ω-shaped limiting chucks. An arc-shaped groove is arranged on the inner side of the semi-circular edge of the limiting chuck. A plurality of uniformly distributed clamping grooves are arranged on the outer side wall of the arc-shaped groove. A positioning mechanism is fixed with bolts at one end of the bottom surface between the two limiting chucks. A plurality of slide rail bearings are arranged along the length direction of the bottom surface on the outer side of the bottom surface. A rotating shaft extending outward is fixed at the center of the arc of each limiting chuck, and a rotating shaft bearing is installed on the rotating shaft.

[0006] The limiting mechanism includes an arm rod connecting seat. One end of the arm rod connecting seat is a hollow tube, and at the other end, two parallel rectangular plates are integrally provided on both sides of the hollow tube. A chute is provided in the middle of each rectangular plate, and a limiting block is provided in each chute. The outside of the limiting block is closed by a limiting block cover plate. An axially perforated hole with an opening is provided on the outside of each chute of the arm rod connecting seat. The axially perforated hole is sleeved on the outside of the bearing on the rotating shaft of the chuck device, and the axially perforated hole and the rotating shaft bearing are pressed tightly by a locking bolt. One end of the two limiting blocks away from the limiting chuck is connected to a limiting block pull rod by a pin shaft. The inner hole of the arm rod connecting seat inserts an arm rod, and the arm rod is fixedly connected to the arm rod connecting seat by an arm rod fixing bolt. The arm rod is a hollow tube, and a chute along the length direction is provided on the side wall. Two limiting block pull rods are inserted into the inner hole of the arm rod, and a pull rod pin shaft is fixed at the end of the limiting block pull rod. The pull rod pin shaft is located in the chute on the arm rod;

[0007] A positioning mechanism (refer to the appendix Figure 3 ) fixed between the two limiting chucks includes a limiting sliding seat fixed between the two limiting chucks. The limiting sliding seat is a rectangular steel plate with a strip-shaped groove opened in the middle. A through hole is provided on the bottom surface of the strip-shaped groove, and a limiting sliding rod is inserted in the through hole. The diameter of the limiting sliding rod is thinner at the bottom part of the strip-shaped groove and thicker at the part away from the bottom of the strip-shaped groove. A positioning spring is sleeved on the limiting sliding rod between the thinner part of the limiting sliding rod and the bottom of the strip-shaped groove. After the limiting sliding rod passes through the bottom of the groove of the limiting sliding seat, a sliding rod fixing part is fixedly connected by threading;

[0008] The arm rod device includes an arm rod and an unlocking handle sleeved outside the arm rod. Two symmetrically arranged small holes are provided on the unlocking handle. The pull rod pin shaft fixed at the end of the limiting block pull rod is installed in the small holes, so that the limiting block pull rod is fixedly connected to the unlocking handle;

[0009] The slide rail bearings on both sides of the limiting chuck of the chuck device are clamped on two slide rails in the inner cavity of the sliding rod, connecting the sliding rod, the chuck device and the arm rod device into one body. The thick end of the limiting sliding rod is inserted into the limiting hole on the inner cavity platform of the sliding rod;

[0010] One end of the limiting block is provided with a protruding clamping block, and the clamping block can be clamped into each clamping groove on the limiting chuck to ensure the movement of the arm rod connecting seat in each clamping groove, thereby adjusting the angle between the arm rod connecting seat and the sliding rod;

[0011] One end face of the limiting block facing the rotating shaft is provided with a spring hole, and a spring is installed in the spring hole. The outside of the spring is tightly pressed against the side wall of the chute on the rectangular plate of the arm rod connecting seat.

[0012] Preferably, pull the sliding rod fixing member of the positioning mechanism backward by hand, so that the limiting sliding rod disengages from the limiting hole on the sliding rod. After the chuck mechanism can move up and down along the sliding rod to a suitable position, release the sliding rod fixing member. Due to the action of the positioning spring, the limiting sliding rod is reinserted into another limiting hole for positioning.

[0013] Preferably, push the unlocking handle forward, so that the clamping block on the limiting block disengages from the clamping groove on the limiting chuck. By moving the chuck mechanism, the arm rod can be driven to rotate around the rotating shaft. After reaching a suitable position, release the unlocking handle. Under the action of the spring, the limiting block resets, and the clamping block snaps into another clamping groove.

[0014] The beneficial effects of the present utility model are as follows: The structure of the double limiting chuck ensures the overall stability and durability, and the positioning mechanism ensures the convenient rotation operation of the arm rod, significantly improving the product quality. Description of the Drawings

[0015] Att Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0016] Att Figure 2 is a three-dimensional structural schematic diagram of the sliding rod of the present utility model.

[0017] Att Figure 3 is a three-dimensional structural schematic diagram of the chuck mechanism of the present utility model after removing one limiting chuck.

[0018] Att Figure 4 is a three-dimensional exploded structural schematic diagram of the chuck mechanism of the present utility model.

[0019] Att Figure 5 is a three-dimensional structural schematic diagram of the chuck mechanism of the present utility model.

[0020] Att Figure 6 is a three-dimensional structural schematic diagram of the present utility model after removing the arm rod connecting seat.

[0021] Att Figure 7 is a three-dimensional structural schematic diagram of the present utility model after removing the arm rod connecting seat and one limiting chuck.

[0022] Att Figure 8 is a three-dimensional structural schematic diagram of the present utility model after removing the unlocking handle.

[0023] Att Figure 9 is a three-dimensional structural schematic diagram of the arm rod connecting seat of the present utility model Figure 1 。

[0024] Att Figure 10 is a three-dimensional structural schematic diagram of the arm rod connecting seat of the present utility model Figure 2 。

[0025] Att Figure 11This is a three-dimensional structural schematic diagram of the limit block of the utility model.

[0026] Appendix Figure 1 —11, the sliding rod 1, the chuck device 2, the unlocking handle 3, the arm rod 4, the limit hole 5, the platform 6, the slide rail 7, the limit sliding rod 8, the limit sliding seat 9, the positioning spring 10, the sliding rod fixing member 11, the limit chuck 12, the slide rail bearing 13, the card slot 14, the arm rod connecting seat 15, the limit block pull rod 16, the pull rod pin shaft 17, the limit block cover plate 18, the rotating shaft 19, the locking bolt 20, the spring hole 21, the limit block 22, the spring 23, the card block 24, the sliding groove 25. Specific embodiments

[0027] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0028] Appendix Figure 1 —11 shows a rotatable arm rod structure with a limit function for a multifunctional fitness all-in-one machine, including a sliding rod, a chuck device, and an arm rod device; the sliding rod 1 is a round tube, with a through slot provided along the length direction, and a platform 6 integrally provided on the opposite side of the through slot in the inner cavity, which runs through the entire sliding rod 1. A plurality of evenly distributed limit holes 5 are provided along the length direction at the center of the platform, and a slide rail 7 running through the sliding rod along the length direction is integrally provided on each of the two side surfaces of the slot in the inner cavity;

[0029] The chuck device 2 includes a chuck mechanism, a positioning mechanism, and a limit mechanism. The chuck mechanism includes two Ω-shaped limit chucks 12. An arc-shaped groove is provided on the inner side of the semi-circular edge of the limit chuck 12, and a plurality of evenly distributed card slots 14 are provided on the outer side wall of the arc-shaped groove. A positioning mechanism is fixed with bolts at one end of the bottom surface between the two limit chucks 12, and a plurality of slide rail bearings 13 are provided along the length direction of the bottom surface on the outer side of the bottom surface. A rotating shaft 19 extending outward is fixed at the center of the arc of each limit chuck 12, and a rotating shaft bearing is installed on the rotating shaft 19;

[0030] The limiting mechanism includes an arm rod connecting seat 15. One end of the arm rod connecting seat 15 is a hollow tube, and at the other end, two parallel rectangular plates are integrally provided on both sides of the hollow tube. Each rectangular plate is provided with a chute in the middle, and a limiting block 22 is arranged in each chute. The outside of the limiting block 22 is closed by a limiting block cover plate 18. The arm rod connecting seat 15 is provided with a shaft hole with an opening on each side of the chute. The shaft hole is sleeved outside the bearing on the rotating shaft 19 of the chuck device, and a locking bolt 20 is used to press the shaft hole against the rotating shaft bearing. One end of the two limiting blocks 22 away from the limiting chuck 12 is connected to a limiting block pull rod 16 by a pin shaft. A hollow arm rod 4 is inserted into the inner hole of the arm rod connecting seat 15 and is fixedly connected to the arm rod connecting seat 15 by an arm rod fixing bolt. The arm rod 4 is a hollow tube, and a chute 25 along the length direction is provided on the side wall. Two limiting block pull rods 16 are inserted into the inner hole of the arm rod 4, and a pull rod pin shaft 17 is fixed at the end of the limiting block pull rod 16. The pull rod pin shaft 17 is located in the chute 25 on the arm rod 4;

[0031] A positioning mechanism (refer to the appendix Figure 3 ) fixed between the two limiting chucks 12 includes a limiting sliding seat 9 fixed between the two limiting chucks 12. The limiting sliding seat 9 is a rectangular steel plate with a strip-shaped groove opened in the middle. A through hole is provided on the bottom surface of the strip-shaped groove, and a limiting sliding rod 8 is inserted into the through hole. The diameter of the limiting sliding rod 8 is thinner at the bottom part of the strip-shaped groove and thicker at the part away from the bottom of the strip-shaped groove. A positioning spring 10 is sleeved on the limiting sliding rod 8 between the thinner part of the limiting sliding rod 8 and the bottom of the strip-shaped groove. After the limiting sliding rod 8 passes through the bottom of the groove of the limiting sliding seat 9, a sliding rod fixing part 11 is fixedly connected by threading;

[0032] In the arm rod device, it includes an arm rod 4 and an unlocking handle 3 sleeved outside the arm rod 4. Two symmetric small holes are provided on the unlocking handle 3. The pull rod pin shaft 17 fixed at the end of the limiting block pull rod 16 is installed in the small holes, so that the limiting block pull rod 16 is fixedly connected to the unlocking handle 3;

[0033] The slide rail bearings 13 on both sides of the limiting chuck 12 of the chuck device are clamped on two slide rails 7 in the inner cavity of the slide rod 1, connecting the slide rod 1, the chuck device and the arm rod device into one body. The thick end of the limiting sliding rod 8 is inserted into the limiting hole 5 on the inner cavity platform 6 of the slide rod 1.

[0034] Preferably, when the sliding rod fixing part 11 of the positioning mechanism is pulled backward by hand, the limiting sliding rod 8 is disengaged from the limiting hole 5 on the slide rod 1. After the chuck mechanism can move up and down along the slide rod 1 to a suitable position, the sliding rod fixing part 11 is released. Due to the action of the positioning spring 10, the limiting sliding rod 8 is reinserted into another limiting hole 5 for positioning.

[0035] Preferably, when the unlocking handle 3 is pushed forward, the clamping block 24 on the limit block 22 disengages from the card slot 14 on the limit chuck 12. Moving the chuck mechanism can drive the arm rod 4 to rotate around the rotating shaft 19. After reaching the appropriate position, the unlocking handle 3 is released. Under the action of the spring 23, the limit block 22 resets, and the clamping block 24 is clamped into another card slot 14.

[0036] Preferably, a protruding clamping block 24 is provided at one end of the limit block 22. The clamping block 24 can be clamped into each card slot 14 on the limit chuck 12 to ensure that the arm rod connecting seat 15 moves in each card slot 14, thereby adjusting the angle between the arm rod connecting seat 15 and the sliding rod 1.

[0037] Preferably, a spring hole 21 is provided on the end face of the limit block 22 facing the rotating shaft 19. A spring 23 is installed in the spring hole 21, and the outer side of the spring 23 abuts against the side wall of the sliding groove on the rectangular plate of the arm rod connecting seat 15.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotating structure of an arm rod with a limiting function for a multifunctional fitness all-in-one machine, characterized in that: It includes a sliding rod, a chuck device, and an arm rod device; the sliding rod is a circular tube, with a through notch provided along the length direction. Opposite to the through notch in the inner cavity, a platform running through the entire sliding rod is integrally provided. A plurality of evenly distributed limiting holes are provided along the length direction at the center of the platform. Along both side surfaces of the notch, a slide rail running through the sliding rod along the length direction is integrally provided in the inner cavity. The chuck device includes a chuck mechanism, a positioning mechanism, and a limiting mechanism. The chuck mechanism includes two Ω-shaped limiting chucks. An arc-shaped groove is provided on the inner side of the semi-circular edge of the limiting chuck. A plurality of evenly distributed clamping grooves are provided on the outer side wall of the arc-shaped groove. A positioning mechanism is fixed with bolts at one end of the bottom surface between the two limiting chucks. A plurality of slide rail bearings are provided along the length direction of the bottom surface on the outer side of the bottom surface. A rotating shaft extending outward is fixed at the center of the arc of each limiting chuck, and a rotating shaft bearing is installed on the rotating shaft. The limiting mechanism includes an arm rod connecting seat. One end of the arm rod connecting seat is a hollow tube, and two parallel rectangular plates are integrally provided on both sides of the hollow tube at the other end. A chute is provided in the middle of each rectangular plate, and a limiting block is provided in each chute. The limiting block is enclosed by a limiting block cover plate on the outer side. An axially perforated hole with an opening is provided on the outer side of each chute of the arm rod connecting seat. The axially perforated hole is sleeved on the outer side of the bearing on the rotating shaft of the chuck device, and the axially perforated hole and the rotating shaft bearing are pressed tightly with a locking bolt. One end of the two limiting blocks away from the limiting chuck is connected to a limiting block pull rod with a pin shaft. The inner hole of the arm rod connecting seat inserts an arm rod, and the arm rod is fixedly connected to the arm rod connecting seat with an arm rod fixing bolt. The arm rod is a hollow tube, and a chute along the length direction is provided on the side wall. Two limiting block pull rods are inserted into the inner hole of the arm rod, and a pull rod pin shaft is fixed at the end of the limiting block pull rod. The pull rod pin shaft is located in the chute on the arm rod. A positioning mechanism fixed between the two limiting chucks includes a limiting sliding seat fixed between the two limiting chucks. The limiting sliding seat is a rectangular steel plate with a strip-shaped groove provided in the middle. A through hole is provided on the bottom surface of the strip-shaped groove, and a limiting sliding rod is inserted into the through hole. The diameter of the limiting sliding rod is thinner at the bottom part of the strip-shaped groove and thicker at the part away from the bottom of the strip-shaped groove. A positioning spring is sleeved on the limiting sliding rod between the thinner part of the limiting sliding rod and the bottom of the strip-shaped groove. After the limiting sliding rod passes through the bottom of the groove of the limiting sliding seat, a sliding rod fixing piece is threadedly connected and fixed. In the arm rod device, it includes an arm rod and an unlocking handle sleeved outside the arm rod. Two symmetrical small holes are provided on the unlocking handle. The pull rod pin shaft fixed at the end of the limiting block pull rod is installed in the small holes, so that the limiting block pull rod is fixedly connected to the unlocking handle. The slide rail bearings on both sides of the limiting chuck of the chuck device are clamped on the two slide rails in the inner cavity of the sliding rod, connecting the sliding rod, the chuck device, and the arm rod device into one body. The thick end of the limiting sliding rod is inserted into the limiting hole on the platform in the inner cavity of the sliding rod. One end of the limit block is provided with a protruding clamping block, and the clamping block can be clamped into each clamping groove on the limit chuck to ensure that the arm rod connecting seat moves in each clamping groove, thereby adjusting the angle between the arm rod connecting seat and the sliding rod; One end face of the limit block facing the rotating shaft is provided with a spring hole, and a spring is installed in the spring hole. The outside of the spring abuts against the side wall of the sliding groove on the rectangular plate of the arm rod connecting seat.

2. The arm rod rotating structure with a limiting function for a multi-functional fitness all-in-one machine according to claim 1, characterized in that: Pull the sliding rod fixing part of the positioning mechanism backward by hand, and the limit sliding rod is disengaged from the limit hole on the sliding rod. After the chuck mechanism can move up and down along the sliding rod to a suitable position, release the sliding rod fixing part. Due to the action of the positioning spring, the limit sliding rod is reinserted into another limit hole for positioning.

3. The arm rod rotating structure with a limit function for a multi-functional fitness all-in-one machine according to claim 1, characterized in that: Push the unlocking handle forward, and the clamping block on the limit block is disengaged from the clamping groove on the limit chuck. Moving the chuck mechanism can drive the arm rod to rotate around the rotating shaft. After reaching a suitable position, release the unlocking handle. Under the action of the spring, the limit block resets, and the clamping block is clamped into another clamping groove.

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