Cantilever adjusting structure and fitness equipment

Abstract

The utility model discloses a cantilever adjusting structure and fitness equipment, which relate to the field of fitness equipment and are used for solving the problems of adjusting and fixing the angle of a cantilever, the cantilever adjusting structure and the fitness equipment comprise a fixing frame, the cantilever and an adjusting mechanism, the fixing frame is provided with a rotary connecting part and a positioning hole; the cantilever is rotatably connected with the rotary connecting part and is provided with a sleeve hole; the adjusting mechanism comprises a pin pulling seat, an operating piece, a positioning column and an elastic piece; in the initial state, the elastic piece drives the positioning column to stretch into any positioning hole so as to limit relative rotation of the cantilever and the fixing frame. When the operating part drives the pin pulling seat to rotate relative to the cantilever in the preset direction, the pin pulling seat drives the positioning column to be separated from the current positioning hole, so that the cantilever and the fixing frame can rotate relative to each other. According to the cantilever adjusting structure, the use angle of the cantilever can be adjusted and fixed through the adjusting mechanism, operation can be achieved only by rotating the pin pulling base and controlling the cantilever to rotate through the operating piece, and the cantilever adjusting structure has the advantage of being convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, and particularly to a cantilever adjusting structure and a fitness device. Background Art

[0002] A cantilever is a component in fitness equipment such as strength training machines, and it can rotate relative to the machine frame to adjust the use angle. The cantilever and the machine frame are connected by an adjusting structure. In related technologies, the adjusting structure is usually a gear-rack mechanism or a worm and worm gear mechanism. To facilitate use, how to more conveniently adjust and fix the use angle of the cantilever is a technical problem that those skilled in the art urgently need to solve.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] The utility model provides a cantilever adjusting structure and a fitness device, and the technical problem to be solved is at least: how to adjust and fix the use angle of the cantilever.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the utility model provides the following technical solutions:

[0008] A cantilever adjusting structure includes:

[0009] A fixed frame, provided with a rotating connection part and at least two positioning holes distributed in an arc track centered on the rotating connection part;

[0010] A cantilever, rotatably connected to the rotating connection part, and provided with a sleeve hole facing the arc track;

[0011] An adjusting mechanism includes a pin pulling seat, an operating member, a positioning column and an elastic member. The pin pulling seat is rotatably connected to the cantilever. The operating member is movably arranged on the cantilever and connected to the pin pulling seat for driving the pin pulling seat to rotate relative to the cantilever along a preset direction. The positioning column is movably sleeved inside the sleeve hole and is movably connected to the pin pulling seat. The elastic member is arranged between the positioning column and the cantilever;

[0012] In the initial state, the elastic member drives the positioning column to extend into any one of the positioning holes to limit the relative rotation of the cantilever and the fixed frame; when the operating member drives the pin pulling seat to rotate relative to the cantilever in the preset direction, the pin pulling seat drives the positioning column to disengage from the current positioning hole, so that the cantilever and the fixed frame can rotate relative to each other.

[0013] In some embodiments, the operating member is a push-twist, and the push-twist is connected to the cantilever through a sliding structure, so that the push-twist can move relative to the cantilever in a linear direction.

[0014] In some embodiments, the sliding structure includes a travel chute provided on the cantilever and an adjustment slider provided on the push-twist, and the adjustment slider is slidably engaged with the chute.

[0015] In some embodiments, the adjustment mechanism further includes a traction member, one end of the traction member is connected to the operating member, and the other end is connected to the pin pulling seat.

[0016] In some embodiments, the traction member is a long rod, and the adjustment mechanism further includes a connecting seat. One end of the connecting seat is connected to the long rod, and the other end is provided with a pin shaft and is connected to the pin pulling seat through the pin shaft.

[0017] In some embodiments, the cantilever is a hollow structure, the pin pulling seat, the positioning column, the elastic member and the connecting seat are arranged at one end inside the cantilever, the operating member is arranged at the other end of the cantilever, and the long rod is arranged between the two ends of the cantilever.

[0018] In some embodiments, the positioning column is provided with a convex shaft in the cross-sectional direction, and one end of the pin pulling seat is movably pressed on the convex shaft; when the pin pulling seat rotates in a preset direction, the pin pulling seat pushes the convex shaft, so that the positioning column moves along the sleeve hole and disengages from the current positioning hole.

[0019] In some embodiments, the elastic member is a compression spring, the positioning column is provided with a shoulder structure, the compression spring is sleeved around the positioning column, and one end abuts against the shoulder structure and the other end abuts against the cantilever.

[0020] In some embodiments, an indicating line is provided on the cantilever, and the fixed frame is provided with a gear position identifier adapted to the indicating line.

[0021] In some embodiments, the cantilever is connected to the fixed frame through a rotating shaft, a rope hole for the rope to pass through is provided in the rotating shaft, a rope passing space is provided in the cantilever, and pulley groups are respectively provided at both ends. The rope passes through the rope hole and the rope passing space in sequence, and the two ends are respectively connected to the pulley groups at both ends of the cantilever.

[0022] The present utility model also provides a fitness device, including the above-mentioned cantilever adjustment structure.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the cantilever adjustment structure provided by the present utility model has the following beneficial effects:

[0025] The cantilever adjusting structure controls the rotatable state between the cantilever and the fixed frame through an adjusting mechanism. Specifically, when it is necessary to fix the cantilever and the fixed frame, the positioning column is opposite to one of the positioning holes and extends into the positioning hole under the drive of the elastic member, thereby restricting the relative rotation between the cantilever and the fixed frame; when it is necessary to adjust the use angle of the cantilever, the pin pulling seat is driven to rotate relative to the cantilever in a preset direction through the operating member, and the pin pulling seat drives the positioning column to disengage from the current positioning hole, so that the cantilever can rotate relative to the fixed frame. When the cantilever rotates to the preset use angle, the positioning column is opposite to another positioning hole. At this time, the operating member is released, and the positioning column can extend into the positioning hole under the drive of the elastic member to fix the cantilever and the fixed frame at the current angle, completing the adjustment of the use angle. It can be seen that the cantilever adjusting structure of the present invention can adjust and fix the use angle of the cantilever through the adjusting mechanism, and only needs to rotate the pin pulling seat and control the rotation of the cantilever through the operating member during operation, which has the advantage of convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a perspective view of the cantilever adjusting structure in the embodiment.

[0027] Figure 2 It is a top view of the cantilever adjusting structure in the embodiment.

[0028] Figure 3 For Figure 2 The sectional view of section A in

[0029] Figure 4 For Figure 2 The perspective view of the sectional view of section A in

[0030] Figure 5 For Figure 2 The sectional view of section B in

[0031] Figure 6 For Figure 2 The sectional view of section C in

[0032] Reference Signs:

[0033] Fixed frame 1, positioning hole 10, rotating connection part 11, gear position mark 12;

[0034] Cantilever 2, sleeve hole 20, stroke chute 21, indicating line 22, rotating shaft 23, rope hole 24, rope threading space 25, pulley set 26;

[0035] Pin pulling seat 3, operating member 4, positioning column 5, elastic member 6, traction member 7, connecting seat 8, convex shaft 9, push button 40, adjusting slider 41, pin shaft 81, return spring 82. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0037] The existing adjustment structures of cantilevers are usually gear-rack mechanisms or worm-gear mechanisms. To facilitate use, how to more conveniently adjust and fix the use angle of the cantilever is a technical problem that those skilled in the art urgently need to solve.

[0038] To solve the above technical problem, this embodiment provides a cantilever adjustment structure. Please refer to Figures 1 to 5 as shown in Figure 1 which is a perspective view of the cantilever adjustment structure in the embodiment, Figure 2 which is a top view of the cantilever adjustment structure in the embodiment, Figure 3 which is Figure 2 a cross-sectional view of section A in Figure 4 which is Figure 2 a perspective view of the cross-sectional view of section A in Figure 5 which is Figure 2 a cross-sectional view of section B in

[0039] A cantilever adjustment structure of this embodiment includes: a fixed frame 1, a cantilever 2, and an adjustment mechanism.

[0040] The fixed frame 1, as Figure 2 shown, is provided with a rotational connection portion 11, and at least two positioning holes 10 distributed in an arc trajectory centered on the rotational connection portion 11, that is, the arc trajectory is centered on the rotational connection portion 11, and each positioning hole 10 is spaced apart on the arc trajectory, thereby forming a gear structure for adjusting the use angle of the cantilever 2.

[0041] The cantilever 2, as Figure 5 shown, is rotatably connected to the rotational connection portion 11, and is provided with a socket hole 20 facing the arc trajectory. Among them, the cantilever 2 and the rotational connection portion 11 can be rotatably connected by existing means such as a rotating shaft, which will not be elaborated here.

[0042] The adjustment mechanism, as Figure 3 and Figure 4 shown, includes a pin-pulling seat 3, an operating member 4, a positioning column 5, and an elastic member 6. The pin-pulling seat 3 is rotatably connected to the cantilever 2. The operating member 4 is movably arranged on the cantilever 2 and is connected to the pin-pulling seat 3 for driving the pin-pulling seat 3 to rotate relative to the cantilever 2 along a preset direction. The positioning column 5 is movably sleeved inside the socket hole 20 and is movably connected to the pin-pulling seat 3. The elastic member 6 is arranged between the positioning column 5 and the cantilever 2; the setting of the adjustment mechanism also needs to meet the following conditions:

[0043] In the initial state, the elastic member 6 drives the positioning post 5 to extend into any one of the positioning holes 10 to limit the relative rotation of the cantilever 2 and the fixing bracket 1; when the operating member 4 drives the pin-pulling seat 3 to rotate relative to the cantilever 2 in a preset direction, the pin-pulling seat 3 drives the positioning post 5 to disengage from the current positioning hole 10, so that the cantilever 2 and the fixing bracket 1 can rotate relative to each other.

[0044] The cantilever adjustment structure of the above technical solution controls the rotatable state between the cantilever 2 and the fixing bracket 1 through the adjustment mechanism. Specifically, when it is necessary to fix the cantilever 2 and the fixing bracket 1, the positioning post 5 is opposite to one of the positioning holes 10 and extends into the positioning hole 10 under the drive of the elastic member 6, thereby restricting the relative rotation of the cantilever 2 and the fixing bracket 1; when it is necessary to adjust the use angle of the cantilever 2, the operating member 4 drives the pin-pulling seat 3 to rotate relative to the cantilever 2 in a preset direction, and the pin-pulling seat 3 drives the positioning post 5 to disengage from the current positioning hole 10, so that the cantilever 2 can rotate relative to the fixing bracket 1. When the cantilever 2 rotates to the preset use angle, the positioning post 5 is opposite to another positioning hole 10. At this time, the operating member 4 is released, and the positioning post 5 can extend into the positioning hole 10 under the drive of the elastic member 6 to fix the cantilever 2 and the fixing bracket 1 at the current use angle, completing the adjustment of the angle. It can be seen that the cantilever adjustment structure of the above technical solution can adjust and fix the use angle of the cantilever 2 through the adjustment mechanism. The operation only needs to rotate the pin-pulling seat 3 and control the rotation of the cantilever 2 through the operating member 4, which has the advantage of convenient use.

[0045] The above-mentioned operating member 4 can be designed according to the operation method. In one embodiment of the operating member 4, refer to Figure 1 As shown, the operating member 4 is a push button 40, and the push button 40 is connected to the cantilever 2 through a sliding structure, so that the push button 40 can move relative to the cantilever 2 in a linear direction.

[0046] Exemplarily, refer to Figure 4 and Figure 6 As shown, Figure 6 is Figure 2 a cross-sectional view of section C in

[0047] The connection between the above-mentioned operating member 4 and the pin-pulling seat 3 can be achieved in the following way: Refer to Figure 3 and Figure 4 As shown, the adjustment mechanism further includes a traction member 7. One end of the traction member 7 is connected to the operating member 4, and the other end is connected to the pin-pulling seat 3. When the operating member 4 moves, the pin-pulling seat 3 is driven to rotate through the traction member 7.

[0048] Exemplarily, refer to Figure 3 andFigure 4 As shown, the traction member 7 is a long rod. The adjusting mechanism further includes a connecting seat 8. One end of the connecting seat 8 is connected to the long rod, and the other end is provided with a pin shaft 81 and is connected to the pin pulling seat 3 through the pin shaft 81. The connecting seat 8 can be provided with a shaft hole that movably sleeves the pin shaft 81, and the pin shaft 81 is fixed on the pin pulling seat 3.

[0049] Among them, referring to Figure 3 and Figure 4 As shown, a return spring 82 can be provided between the connecting seat 8 and the cantilever 2. The return spring 82 is sleeved on the long rod and is used to drive the long rod to return to the initial position when the operating member is released.

[0050] Exemplarily, the traction member 7 is a pull rope.

[0051] In order to facilitate the user to operate the adjusting mechanism at one end of the cantilever 2 away from the fixed frame 1, referring to Figure 3 and Figure 4 As shown, the cantilever 2 is a hollow structure. The pin pulling seat 3, the positioning column 5, the elastic member 6 and the connecting seat 8 are arranged at one end inside the cantilever 2, the operating member 4 is arranged at the other end of the cantilever 2, and the long rod is arranged between the two ends of the cantilever 2. With such a setting, the main components of the adjusting mechanism can also be hidden inside the cantilever 2 to achieve the protection effect of the main components and improve the integrity and aesthetics of the appearance of the cantilever 2.

[0052] In another embodiment of the operating member 4, the operating member 4 is a rotating handle (not shown in the figure). The rotating handle is rotatably connected to the cantilever 2 and drives the pin pulling seat 3 to rotate by its own rotation.

[0053] Exemplarily, the rotating handle is connected to the pin pulling seat 3 through a flexible connecting member such as a pull rope, and the pull rope can be arranged inside the cantilever 2.

[0054] In one embodiment of the above-mentioned movable connection between the pin pulling seat 3 and the positioning column 5, referring to Figure 3 and Figure 5 As shown, the positioning column 5 is provided with a convex shaft 9 in the cross-sectional direction. One end of the pin pulling seat 3 is movably pressed on the convex shaft 9. When the pin pulling seat 3 rotates in the preset direction, the pin pulling seat 3 pushes the convex shaft 9 to make the positioning column 5 move along the sleeve hole 20 and disengage from the current positioning hole 10.

[0055] Exemplarily, referring to Figure 3 and Figure 5 As shown, the positioning column 5 is a cylinder and is provided with a through hole in the radial direction. The convex shaft 9 passes through the through hole, and its two ends are symmetrically arranged with the positioning column 5 as the center. The pin pulling seat 3 is provided with two pressing blocks, and the two pressing blocks are respectively in contact with the two ends of the convex shaft 9. Thus, when the pin pulling seat 3 rotates, it can push the convex shaft 9 to move along the sleeve hole 20 direction, so that the positioning column 5 disengages from the positioning hole 10.

[0056] In another embodiment where the above-mentioned pin extraction seat 3 is movably connected to the positioning post 5, the pin extraction seat 3 and the positioning post 5 are connected by a connecting rod (not shown in the figure). The two ends of the connecting rod are respectively connected to the pin extraction seat 3 and the positioning post 5 through rotating shafts. When the pin extraction seat 3 rotates, the positioning post 5 is driven to move by the connecting rod.

[0057] Exemplarily, the number of connecting rods is one or two.

[0058] In one embodiment where the above-mentioned elastic member 6 drives the positioning post 5 to extend into any one of the positioning holes 10, refer to Figure 3 and Figure 5 As shown, the elastic member 6 is a compression spring. The positioning post 5 is provided with a shoulder structure. The compression spring is sleeved around the positioning post 5, and one end abuts against the shoulder structure, and the other end abuts against the cantilever 2. When the pin extraction seat 3 rotates, the compression spring is compressed by the positioning post 5.

[0059] Exemplarily, the above-mentioned convex shaft 9 serves as the shoulder structure of the positioning post 5.

[0060] It can be understood that the above-mentioned elastic member 6 can also be a tension spring, and its two ends are respectively connected to the pin extraction seat 3 and the positioning post 5. When the pin extraction seat 3 rotates, the compression spring is stretched by the positioning post 5.

[0061] In order to facilitate the user to adjust the cantilever 2 to a preset use angle, refer to Figure 1 As shown, the cantilever 2 is provided with an indicating line 22, and the fixing bracket 1 is provided with a gear position mark 12 adapted to the indicating line 22. The gear position mark 12 can be provided with several gear lines. When the cantilever 2 is rotated so that the indicating line 22 points to one of the gear lines, the positioning post 5 is exactly opposite to the corresponding positioning hole 10. At this time, the operating member 4 is released, and the cantilever 2 can be fixed at the use angle corresponding to the gear line.

[0062] In order to facilitate the laying of the pull rope, refer to Figure 4 As shown, the cantilever 2 is connected to the fixing bracket through a rotating shaft 23. The rotating shaft 23 is provided with a rope hole 24 for the rope to pass through. The cantilever 2 is provided with a rope passing space 25 and pulley groups 26 are respectively provided at both ends. The rope passes through the rope hole 24 and the rope passing space 25 in sequence, and both ends are respectively connected to the pulley groups 26 at both ends of the cantilever 2.

[0063] This embodiment provides a fitness device, including the above-mentioned cantilever adjustment structure. The fixing bracket 1 of the cantilever adjustment structure can be fixed relative to the frame or main body of the fitness device. The fitness device can be a strength training device, a tensile training device or other devices that need to adjust the use angle of the cantilever.

[0064] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cantilever adjustment structure, characterized in that: include: A fixed frame, provided with a rotating connection portion, and at least two positioning holes distributed in a circular arc trajectory with the rotating connection portion as the center; A cantilever, rotatably connected to the rotating connection portion and provided with a sleeve hole arranged toward the circular arc track; The adjustment mechanism comprises a pin puller seat, an operating member, a positioning column and an elastic member, wherein the pin puller seat is rotatably connected to the cantilever, the operating member is movably arranged on the cantilever and connected to the pin puller seat, and is used to drive the pin puller seat to rotate relative to the cantilever along a preset direction, the positioning column is movably sleeved inside the sleeve hole and movably connected to the pin puller seat, and the elastic member is arranged between the positioning column and the cantilever; In the initial state, the elastic member drives the positioning column to extend into any one of the positioning holes to limit the relative rotation of the cantilever and the fixing frame; when the operating member drives the pin puller to rotate in a preset direction relative to the cantilever, the pin puller drives the positioning column to disengage from the current positioning hole so that the cantilever and the fixing frame can rotate relative to each other.

2. The cantilever adjustment structure according to claim 1, characterized in that: The operating member is a push knob, and the push knob is connected to the cantilever through a sliding structure, so that the push knob can move along a straight line relative to the cantilever.

3. The cantilever adjustment structure according to claim 2, characterized in that: The sliding structure comprises a travel sliding groove arranged on the cantilever and an adjusting slider arranged on the push knob, and the adjusting slider is slidably matched with the sliding groove.

4. The cantilever adjustment structure according to claim 1, characterized in that: The adjusting mechanism further comprises a traction member, one end of which is connected to the operating member, and the other end of which is connected to the pin pulling seat.

5. The cantilever adjustment structure according to claim 4, characterized in that: The traction member is a long rod, and the adjustment mechanism also includes a connecting seat, one end of which is connected to the long rod, and the other end of which is provided with a pin shaft and connected to the pin pulling seat through the pin shaft.

6. The cantilever adjustment structure according to claim 5, characterized in that: The cantilever is a hollow structure. The pin puller, the positioning column, the elastic member and the connecting seat are arranged at one end inside the cantilever. The operating member is arranged at the other end of the cantilever. The long rod is arranged between the two ends of the cantilever.

7. The cantilever adjustment structure according to claim 1, characterized in that: The positioning column is provided with a convex shaft in the cross-sectional direction, and one end of the pin puller is movably pressed on the convex shaft; when the pin puller rotates along a preset direction, the pin puller pushes the convex shaft to make the positioning column move along the sleeve hole and disengage from the current positioning hole.

8. The cantilever adjustment structure according to claim 1, characterized in that: The elastic member is a compression spring, the positioning column is provided with a shaft shoulder structure, the compression spring is sleeved on the periphery of the positioning column, one end of the compression spring abuts against the shaft shoulder structure, and the other end abuts against the cantilever.

9. The cantilever adjustment structure according to claim 1, characterized in that: The cantilever is connected to the fixing frame via a rotating shaft, a rope hole for the rope to pass through is provided in the rotating shaft, a rope threading space is provided in the cantilever, and pulley groups are provided at both ends, the rope passes through the rope hole and the rope threading space in turn, and the two ends are respectively connected to the pulley groups at both ends of the cantilever.

10. A fitness equipment, characterized in that: The cantilever adjustment structure comprises the cantilever adjustment structure as described in any one of claims 1 to 9.

Images