Adjusting device for a fitness chair

Abstract

The application discloses a kind of adjusting device of fitness seat, it is related to fitness equipment field, including fitness backrest, the one end of the fitness backrest is provided with fitness seat, the bottom of the fitness backrest is provided with support leg one, the bottom of the fitness backrest is fixed with two symmetrical support rods one, backrest adjusting mechanism is arranged between the support leg one and two support rods one, the bottom of the fitness seat is provided with support leg two, the bottom of the fitness seat is fixed with two symmetrical support rods two, seat adjusting mechanism is arranged between the support leg two and two support rods two.When lifting fitness backrest, after being lifted and loosened hand, fitness backrest can be temporarily supported by backrest adjusting mechanism before being fixed, so that when adjusting longer fitness backrest, it can reduce the troublesome operation of one hand holding fitness backrest and one hand fixing, and the hole for fixing can be aligned, facilitating subsequent fixing.

Description

Technical Field

[0001] This application relates to the field of fitness equipment, and in particular to an adjustment device for a fitness chair. Background Technology

[0002] As a common type of fitness equipment, fitness chairs are widely used in gyms, home fitness centers, and other settings. They typically consist of a backrest, a seat, and a support structure, providing users with comfortable support and helping them maintain correct posture during exercise while reducing stress and fatigue.

[0003] Traditional fitness chairs typically consist of a backrest and a seat. The backrest and seat are connected to the main body of the chair via support legs and support bars, respectively. The tilt angle or height of the backrest and seat can be adjusted to meet the needs of users in different fitness movements.

[0004] Existing fitness chair backrest adjustments typically involve setting multiple holes in the support legs and inserting a rod into these holes to fix the backrest angle. During adjustment, the rod needs to be pulled out first, then the backrest needs to be moved so that the support rod slides on the support legs, and finally the rod needs to be inserted into the corresponding hole for fixation. However, because the backrest is long and heavy, it is not easy to align the rod with the holes on the support legs during adjustment. Also, because the backrest is long, one hand needs to hold the backrest during adjustment, making it cumbersome to fix it with one hand. Utility Model Content

[0005] The purpose of this application is to solve the problem mentioned in the background art that the support rod slides on the support leg and then the plug is inserted into the corresponding hole for fixation. However, due to the long and heavy backrest, it is not easy to align the plug and the hole on the support leg during the adjustment process. Also, the backrest is long, and it is troublesome to fix it with one hand while holding the backrest during the adjustment process. This application provides an adjustment device for a fitness chair.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] An adjustment device for a fitness chair includes a fitness backrest, a fitness seat at one end of the fitness backrest, a support leg at the bottom of the fitness backrest, two symmetrical support rods fixed to the bottom of the fitness backrest, one end of the support leg rotatably connected to one end of the two support rods, a backrest adjustment mechanism between the support leg and the two support rods, a second support leg at the bottom of the fitness seat, the support leg 1 and the second support leg being fixedly connected, two symmetrical support rods fixed to the bottom of the fitness seat, one end of the second support leg rotatably connected to one end of the two support rods, and a seat adjustment mechanism between the second support leg and the two support rods.

[0008] By adopting the above technical solution, the backrest adjustment mechanism connects the support leg one and the two support rods one on the fitness backrest. When the fitness backrest is lifted, it can be temporarily supported by the backrest adjustment mechanism after being lifted and released, and then fixed. This reduces the troublesome operation of holding the fitness backrest with one hand and fixing it with the other when adjusting a long fitness backrest, making the adjustment of the fitness backrest more convenient. At the same time, it can also align the holes for fixing, which is convenient for subsequent fixing.

[0009] Furthermore, the backrest adjustment mechanism includes a rotating rod fixed between two support rods, an adjustment rod rotatably connected to the rotating rod, an adjustment groove on the support leg, one end of the adjustment rod being located in the adjustment groove, a locking rod fixed to the end of the adjustment rod away from the rotating rod, and several locking holes arranged in a straight line fixed to the bottom of the support leg, with the locking rod corresponding to the locking holes, and a snap-fit ​​assembly provided between the adjustment rod and the support leg.

[0010] By adopting the above technical solution, the fitness backrest is lifted up, which in turn drives the adjustment rod, which in turn drives the locking rod. The locking rod moves sequentially through the locking holes on the first support leg, and the locking rod supports the adjustment rod. This provides temporary support for the lifted fitness backrest. At the same time, the locking rod's limitation ensures that the holes for subsequent fixing are aligned, facilitating fixation.

[0011] Furthermore, the snap-fit ​​assembly includes a snap-fit ​​tube fixed to one end of the adjusting rod near the support leg, the snap-fit ​​tube being located in the adjusting groove of the support leg, the support leg having a plurality of snap-fit ​​holes distributed along the support leg, and a snap-fit ​​rod inserted into the snap-fit ​​tube, the snap-fit ​​rod corresponding to the snap-fit ​​hole.

[0012] By adopting the above technical solution, when the adjusting rod moves the locking rod, the adjusting rod moves the locking tube. When the locking rod is locked in the lock hole, the locking tube is aligned with the locking hole, allowing the locking rod to be inserted into the locking hole and the locking tube. This makes it easier to further fix the adjusting rod, and at the same time, under the limitation of the locking rod, the locking tube is aligned with the locking hole.

[0013] Furthermore, one end of the snap-fit ​​plug is connected to a limiting pin, which is a U-shaped elastic metal rod with a protrusion at one end.

[0014] By adopting the above technical solution, a limiting pin is inserted into one end of the locking rod, which limits the locking rod and reduces the possibility of the locking rod falling out of the locking tube and locking hole.

[0015] Furthermore, an anti-loss rope is provided at the end of the limiting pin and the locking rod away from the plug, and both ends of the anti-loss rope are fixedly connected to the locking rod and the limiting pin.

[0016] By adopting the above technical solution, the limit pin and the locking rod are connected by an anti-loss rope, thereby reducing the possibility of the limit pin being lost after being pulled out.

[0017] Furthermore, a circular guide surface is provided on one side of the locking rod, the circular guide surface facing the second support leg, and the circular guide surface corresponding to the lock hole.

[0018] By adopting the above technical solution, a circular guide surface is set on one side of the locking rod, so that when the fitness backrest pulls the adjustment rod, the circular guide surface abuts against the lock hole, thereby allowing the adjustment rod to drive the locking rod to disengage from the lock hole under the guidance of the circular guide surface.

[0019] Furthermore, the seat adjustment mechanism includes a rotating rod two fixed between two support rods two, an arc-shaped rod rotatably connected to the rotating rod two, a fixing block fixed to the support leg two, the arc-shaped rod passing through the fixing block, and a fixing component provided between the arc-shaped rod and the fixing block.

[0020] By adopting the above technical solution, the two support rods on the fitness seat are supported by the arc rod, allowing the arc rod to move on the fixed block, and then fixed by the fixing component, so that the position of the fitness seat can be easily adjusted.

[0021] Furthermore, the fixing component includes a fixing ring fixed on the fixing block, a fixing threaded rod threadedly connected to the fixing ring, the fixing threaded rod passing through the fixing block, and a plurality of arc-shaped fixing holes provided on the arc-shaped rod, the fixing holes corresponding to the fixing threaded rod.

[0022] By adopting the above technical solution, the fixed threaded rod is turned to move on the fixed ring, thereby making it easy to insert the fixed threaded ring into or pull it out of the fixed hole.

[0023] In summary, this application includes at least one of the following beneficial effects;

[0024] 1. In this application, by removing the limiting pin on the locking rod, the locking rod is removed from the locking hole of the locking tube and the first support leg, leaving the adjusting rod supported only by the locking rod at its end. When the fitness backrest is lifted, the first support rod on the fitness backrest drives the first rotating rod, which in turn drives the adjusting rod, allowing it to slide in the adjusting groove on the first support leg. As the adjusting rod slides, it drives the locking rod, whose circular guide surface abuts against the edge of the locking hole, causing the locking rod to retract into the first support leg. When the adjusting rod moves the locking rod to the next locking hole position, the locking rod re-inserts into the locking hole under the influence of gravity, limiting the adjustment rod. The lifting process continues... Move the backrest to the next lock hole. Once the backrest is adjusted to the desired height, release it. The adjusting rod, in conjunction with the lock rod and lock hole, provides temporary support for the backrest. Simultaneously, with the lock rod in place, align the locking tube with the locking hole. Pass the locking rod through the locking hole and locking tube, and finally insert the limiting pin into the locking rod. This reduces the cumbersome operation of holding the backrest with one hand while using the other to fix it when adjusting a longer backrest, making backrest adjustment easier. It also facilitates aligning the locking tube with the locking hole, making it easier to insert the locking rod and further support the adjusting rod.

[0025] 2. This application achieves the purpose of conveniently adjusting the angle of the fitness seat by directly turning the fixed threaded rod when the angle of the fitness seat needs to be adjusted, allowing the fixed threaded rod to move on the fixed ring, disengaging the fixed threaded rod from the fixed hole on the arc rod, and allowing the fitness seat to rotate on the second support leg. The fitness seat drives the arc rod to slide in the fixed block. After the fitness seat is adjusted to a suitable angle, the fixed threaded rod is rotated to re-insert into the fixed hole on the arc rod, thus achieving the purpose of conveniently adjusting the angle of the fitness seat and facilitating its use in different scenarios. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the adjustment device of the fitness chair in this application;

[0027] Figure 2 This is a second three-dimensional structural schematic diagram of the adjustment device of the fitness chair in this application;

[0028] Figure 3 This application Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a partial structural schematic diagram of the backrest adjustment mechanism in this application;

[0030] Figure 5 This application Figure 2 Enlarged diagram of point B in the middle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Fitness backrest; 2. Fitness seat; 3. Support leg one; 4. Support leg two; 5. Support rod one; 6. Support rod two; 7. Backrest adjustment mechanism; 71. Rotating rod one; 72. Adjusting rod; 73. Locking rod; 74. Locking hole; 75. Snap-fit ​​assembly; 751. Snap-fit ​​rod; 752. Snap-fit ​​tube; 753. Snap-fit ​​hole; 754. Limit pin; 755. Anti-loss rope; 8. Seat adjustment mechanism; 81. Rotating rod two; 82. Arc rod; 83. Fixing block; 84. Fixing assembly; 841. Fixing ring; 842. Fixing threaded rod. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0034] This application discloses an adjustment device for a fitness chair.

[0035] Reference Figure 1 , Figure 2 and Figure 3An adjustment device for a fitness chair includes a fitness backrest 1, a fitness seat 2 at one end of the fitness backrest 1, a support leg 3 at the bottom of the fitness backrest 1, two symmetrical support rods 5 fixed at the bottom of the fitness backrest 1, one end of the support leg 3 being rotatably connected to one end of the two support rods 5, a backrest adjustment mechanism 7 being provided between the support leg 3 and the two support rods 5, a support leg 4 at the bottom of the fitness seat 2, the support leg 3 being fixedly connected to the support leg 4, two symmetrical support rods 6 fixed at the bottom of the fitness seat 2, one end of the support leg 4 being rotatably connected to one end of the two support rods 6, and a seat adjustment mechanism 8 being provided between the support leg 4 and the two support rods 6. When using the fitness seat 2, sit on it and lie back on the backrest 1. To adjust the backrest 1 to a seated position, first release the backrest adjustment mechanism 7 from the support leg 3, then lift the backrest 1. Supported by the two support rods 5, the backrest 1 rotates on the support leg 3, causing the backrest 1 to move the adjustment mechanism 7. Stop lifting the backrest 1 to temporarily support the adjusted angle. Finally, use the backrest adjustment mechanism 7 to secure it. When adjusting the height of the fitness seat 2... The seat adjustment mechanism 8 drives the fitness seat 2, causing the two support rods 6 on the fitness seat 2 to rotate on the support legs 4, thus completing the adjustment of the fitness seat 2. By using the backrest adjustment mechanism 7 to connect the support legs 3 and the two support rods 5 on the fitness backrest 1, when the fitness backrest 1 is lifted, it can be temporarily supported by the backrest adjustment mechanism 7 after being lifted and released, and then fixed. This reduces the troublesome operation of holding the fitness backrest 1 with one hand and fixing it with the other when adjusting a long fitness backrest 1, making the adjustment of the fitness backrest 1 more convenient. At the same time, it can also be used to align the holes for fixing, which is convenient for subsequent fixing.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The backrest adjustment mechanism 7 includes a rotating rod 71 fixed between two support rods 5. An adjustment rod 72 is rotatably connected to the rotating rod 71. An adjustment groove is provided on the support leg 3. One end of the adjustment rod 72 is located in the adjustment groove. A locking rod 73 is fixed to the end of the adjustment rod 72 away from the rotating rod 71. Several locking holes 74 are fixed at the bottom of the support leg 3 in a straight line. The locking rod 73 corresponds to the locking holes 74. A snap-fit ​​assembly 75 is provided between the adjustment rod 72 and the support leg 3.

[0037] In addition, the snap-fit ​​assembly 75 includes a snap-fit ​​tube 752 fixed on one end of the adjusting rod 72 near the support leg 3. The snap-fit ​​tube 752 is located in the adjusting groove of the support leg 3. The support leg 3 has a plurality of snap-fit ​​holes 753 distributed along the support leg 3. A snap-fit ​​rod 751 is inserted into the snap-fit ​​tube 752, and the snap-fit ​​rod 751 corresponds to the snap-fit ​​hole 753.

[0038] Furthermore, one end of the connector 751 is connected to a limiting pin 754, which is a U-shaped elastic metal rod with a protrusion at one end.

[0039] Furthermore, an anti-loss rope 755 is provided at the end of the limiting pin 754 and the locking rod 751 away from the plug, and both ends of the anti-loss rope 755 are fixedly connected to the locking rod 751 and the limiting pin 754.

[0040] Furthermore, a circular guide surface is provided on one side of the locking rod 73, with the circular guide surface facing the second support leg 4, and the circular guide surface corresponding to the lock hole 74.

[0041] When adjusting the fitness backrest 1, remove the limiting pin 754 from the locking rod 751. After removing the limiting pin 754, disconnect the locking rod 751 from the locking hole 753 of the locking tube 752 and the support leg 3, leaving the adjusting rod 72 supported only by the locking rod 73 at its end. When the fitness backrest 1 is lifted, the support rod 5 on the fitness backrest 1 drives the rotating rod 71, which in turn drives the adjusting rod 72, allowing the adjusting rod 72 to adjust on the support leg 3. Sliding within the groove, as the adjusting rod 72 slides, it drives the locking rod 73. The circular guide surface of the locking rod 73 abuts against the edge of the locking hole 74, causing the locking rod 73 to retract into the support leg 3. When the adjusting rod 72 moves the locking rod 73 to the next locking hole 74, under the influence of gravity, the locking rod 73 re-inserts into the locking hole 74, limiting the adjustment rod 72. Continuing to lift the fitness backrest 1 allows the locking rod 73 to move further into the next locking hole 74. When the backrest 1 is adjusted to a suitable height, it is released. The adjusting rod 72 provides temporary support for the backrest 1 with the cooperation of the locking rod 73 and the locking hole 74. At the same time, with the locking rod 73 in place, the locking tube 752 is aligned with the locking hole 753. The locking rod 751 is then passed through the locking hole 753 and the locking tube 752. Finally, the limiting pin 754 is inserted into the locking rod 751. By adjusting the backrest 1, while lifting the backrest 1, the backrest 1 moves the adjusting rod 72. The adjusting rod 72 moves the locking rod 73 in sequence on the locking hole 74 on the support leg 3. The locking rod 73 provides temporary support for the adjusting rod 72. This reduces the troublesome operation of holding the backrest 1 with one hand and fixing it with the other, making the adjustment of the backrest 1 more convenient. It also makes it easier to align the locking tube 752 with the locking hole 753 and insert the locking rod 751.

[0042] Reference 1. Figure 2 and Figure 5 The seat adjustment mechanism 8 includes a rotating rod 81 fixed between two support rods 6, an arc rod 82 rotatably connected to the rotating rod 81, a fixing block 83 fixed on the support leg 4, the arc rod 82 passing through the fixing block 83, and a fixing component 84 provided between the arc rod 82 and the fixing block 83.

[0043] In addition, the fixing component 84 includes a fixing ring 841 fixed on the fixing block 83. A fixing threaded rod 842 is threadedly connected to the fixing ring 841. The fixing threaded rod 842 passes through the fixing block 83. Several arc-shaped fixing holes are opened on the arc-shaped rod 82, and the fixing holes correspond to the fixing threaded rod 842.

[0044] When the angle of the fitness seat 2 needs to be adjusted, simply turn the fixing threaded rod 842 to move it on the fixing ring 841. The fixing threaded rod 842 disengages from the fixing hole on the arc rod 82, allowing the fitness seat 2 to rotate on the second support leg 4. The fitness seat 2 drives the arc rod 82 to slide in the fixing block 83. Once the fitness seat 2 is adjusted to the appropriate angle, turn the fixing threaded rod 842 to re-insert it into the fixing hole on the arc rod 82, thus completing the angle adjustment of the fitness seat 2. By using the arc rod 82 to support the two second support rods 6 on the fitness seat 2, the arc rod 82 slides in the fixing ring 841 and is then fixed using the fixing threaded rod 842. This allows for convenient adjustment of the angle of the fitness seat 2, making it suitable for different usage scenarios.

[0045] Working principle: When using the fitness seat 2, sit on the fitness seat 2 and lie on the fitness backrest 1 for exercise. When it is necessary to adjust the tilt angle of the fitness backrest 1 to allow the user to use the fitness seat 2 in a seated position, remove the limiting pin 754 on the locking rod 751. After removing the limiting pin 754, remove the locking rod 751 from the locking hole 753 of the locking tube 752 and the support leg 1 3, so that the adjustment rod 72 is only supported by the locking rod 73 at its end. Then lift the fitness backrest 1. When the support rod 5 on the fitness backrest 1 drives the rotating rod 71, the rotating rod 71 drives the adjusting rod 72, causing the adjusting rod 72 to slide in the adjusting groove on the support leg 3. As the adjusting rod 72 slides, it drives the locking rod 73. The circular guide surface of the locking rod 73 abuts against the edge of the locking hole 74, causing the locking rod 73 to retract into the support leg 3. When the adjusting rod 72 drives the locking rod 73 to the next locking hole 74, under the action of gravity, the locking rod 73 re-inserts into the locking hole. In step 74, locking rod 73 limits adjusting rod 72, and the exercise backrest 1 continues to be lifted, allowing locking rod 73 to move to the next locking hole 74. After the exercise backrest 1 is adjusted to a suitable height, the exercise backrest 1 is released. Adjusting rod 72 provides temporary support for the exercise backrest 1 with the cooperation of locking rod 73 and locking hole 74. At the same time, under the positioning of locking rod 73, the locking tube 752 is aligned with the locking hole 753. The locking rod 751 is passed through the locking hole 753 and the locking tube 752, and finally the limiting pin is engaged. Insert 754 into the snap-fit ​​rod 751 to complete the adjustment of the fitness backrest 1, allowing the fixed threaded rod 842 to move on the fixed ring 841. The fixed threaded rod 842 disengages from the fixed hole on the arc rod 82, allowing the fitness seat 2 to rotate on the support leg 2 4. The fitness seat 2 drives the arc rod 82 to slide in the fixed block 83. After the fitness seat 2 is adjusted to a suitable angle, rotate the fixed threaded rod 842 to re-insert it into the fixed hole on the arc rod 82, completing the angle adjustment of the fitness seat 2.

Claims

1. An adjustment device for a fitness chair, comprising a fitness backrest (1), characterized in that: The fitness backrest (1) is provided with a fitness seat (2) at one end, and a support leg (3) is provided at the bottom of the fitness backrest (1). Two symmetrical support rods (5) are fixed at the bottom of the fitness backrest (1). One end of the support leg (3) is rotatably connected to one end of the two support rods (5). A backrest adjustment mechanism (7) is provided between the support leg (3) and the two support rods (5). A support leg (4) is provided at the bottom of the fitness seat (2). The support leg (3) and the support leg (4) are connected. (4) are fixedly connected. The bottom of the fitness seat (2) is fixed with two symmetrical support rods (6). One end of the support leg (4) is rotatably connected to one end of the two support rods (6). A seat adjustment mechanism (8) is provided between the support leg (4) and the two support rods (6). The backrest adjustment mechanism (7) includes a rotating rod (71) fixed between the two support rods (5). An adjustment rod (72) is rotatably connected to the rotating rod (71). The support leg (3) is opened An adjustment groove is provided, and one end of the adjustment rod (72) is located in the adjustment groove. A locking rod (73) is fixed to the end of the adjustment rod (72) away from the rotating rod (71). Several locking holes (74) are fixed to the bottom of the support leg (3) in a straight line. The locking rod (73) corresponds to the locking hole (74). A snap-fit ​​assembly (75) is provided between the adjustment rod (72) and the support leg (3). The snap-fit ​​assembly (75) includes a component fixed to the end of the adjustment rod (72) near the support leg (3). The locking tube (752) is located in the adjustment groove of the support leg (3). The support leg (3) has several locking holes (753) distributed along the support leg (3). The locking tube (752) is connected to a locking rod (751). The locking rod (751) corresponds to the locking hole (753). One end of the plug of the locking rod (751) is connected to a limiting pin (754). The limiting pin (754) is a U-shaped elastic metal rod with a protrusion at one end.

2. The adjustment device for a fitness chair according to claim 1, characterized in that: The limiting pin (754) and the locking rod (751) are provided with an anti-loss rope (755) at the end away from the plug. Both ends of the anti-loss rope (755) are fixedly connected to the locking rod (751) and the limiting pin (754).

3. The adjustment device for a fitness chair according to claim 2, characterized in that: A circular guide surface is provided on one side of the locking rod (73), the circular guide surface faces the second support leg (4), and the circular guide surface corresponds to the lock hole (74).

4. The adjustment device for a fitness chair according to claim 1, characterized in that: The seat adjustment mechanism (8) includes a rotating rod (81) fixed between two support rods (6), an arc rod (82) is rotatably connected to the rotating rod (81), a fixing block (83) is fixed on the support leg (4), the arc rod (82) passes through the fixing block (83), and a fixing component (84) is provided between the arc rod (82) and the fixing block (83).

5. The adjustment device for a fitness chair according to claim 4, characterized in that: The fixing component (84) includes a fixing ring (841) fixed on the fixing block (83), and a fixing threaded rod (842) is threadedly connected to the fixing ring (841). The fixing threaded rod (842) passes through the fixing block (83). The arc-shaped rod (82) has several arc-shaped fixing holes, and the fixing holes correspond to the fixing threaded rod (842).

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