Height adjusting structure of sit-up leg hooking frame

Abstract

The utility model discloses a sit-up leg hooking frame height adjusting structure which comprises a sit-up plate main frame, an adjusting frame and a leg hooking frame, the adjusting frame is installed at the front end of the sit-up plate main frame through bolts, the leg hooking frame is installed above the leg hooking frame, and the sit-up plate main frame comprises a supporting frame. The supine plate is fixed to the surface of the supporting frame, the supporting cross beam is transversely arranged in the supporting frame, the adjusting frame comprises a mounting base with a through hole formed in the bottom, a supporting pipe vertically fixed to the middle of the mounting base, an adjusting disc fixed to the upper end of the supporting pipe and a rotating rotor installed in the adjusting disc, and a rotating shaft is fixed to the center in the rotor; the rotating shaft is fixed with a U-shaped frame on the leg hooking frame through a bolt; the leg hooking frame rotates on the disc to achieve height adjustment, a ring for pulling out the leg hooking frame is omitted, convenience and rapidness are achieved, a knob can be tightened after adjustment to achieve the reinforcing effect, the leg hooking frame is stable and does not shake, height adjustment of the leg hooking frame can be rapidly and conveniently achieved, and the leg hooking frame can be used by different people and is stable and does not shake.

Description

Technical Field

[0001] The utility model relates to the technical field of height adjustment of a leg hook frame, in particular to a height adjustment structure of a sit-up leg hook frame. Background Art

[0002] The height adjustment method of the supine board leg hook rack sold on the market is to achieve height adjustment by telescoping up and down. Each adjustment requires the leg hook rack to be pulled out and aligned with the corresponding hole position to achieve height adjustment. The adjustment method is inconvenient, and the adjustment rack is prone to shaking. Utility Model Content

[0003] The utility model aims to provide a sit-up leg hook frame height adjustment structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sit-up leg hook frame height adjustment structure, comprising a supine board main frame, an adjustment frame and a leg hook frame, the front end of the supine board main frame is equipped with an adjustment frame by bolts, and the leg hook frame is installed above the leg hook frame, and the leg hook frame is fixed by a spring knob, the supine board main frame comprises a support frame, a supine board fixed on the surface of the support frame and a support beam arranged laterally inside the support frame, the adjustment frame comprises a mounting seat with a through hole at the bottom and a support tube fixed vertically in the middle of the mounting seat, an adjustment disk fixed at the upper end of the support tube and a rotatable rotor installed inside the adjustment disk, a rotating shaft is fixed at the center of the rotor, and the rotating shaft is fixed to a U-shaped frame on the leg hook frame by bolts, a fixing hole is arranged on the side of the U-shaped frame, a leg hook rod is fixed on the top of the U-shaped frame, and a spring knob is screwed inside the fixing hole.

[0005] Furthermore, the support beam installed inside the support frame is a detachable structure, and the support beam includes a single-hole support beam, a hole-free support beam and a double-hole support beam, and a support foot pad is installed at the bottom of the double-hole support beam.

[0006] Furthermore, a plurality of through holes are evenly arranged on the outer wall of the adjusting disk, and the rod body below the spring knob screwed on the fixing hole is inserted into the through hole of the adjusting disk.

[0007] Furthermore, the rotor is rotatable inside the circular adjustment disk, and the leg hook frame is fixed on the rotating shaft and rotates synchronously.

[0008] Furthermore, the two groups of leg hook rods arranged on the leg hook frame are covered with foam sleeves.

[0009] Furthermore, the support tube is a waist-shaped tube, and an arc groove for fixing the rotor is provided at the upper end of the support tube, and the width of the rotor is larger than the width of the support tube.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The leg hook frame can be rotated on the disc to achieve height adjustment, eliminating the need to pull the leg hook frame out of the ring, which is convenient and quick. After adjustment, the knob can be tightened to achieve reinforcement. The leg hook frame is stable and does not shake. The height of the leg hook frame can be adjusted quickly and conveniently to achieve use by different groups of people, and it is stable and does not shake. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0013] Figure 2 It is an exploded schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the main frame of the supine board of the utility model;

[0015] Figure 4 It is a schematic diagram of the support frame in the utility model;

[0016] Figure 5 It is a schematic diagram of the adjustment frame in the utility model;

[0017] Figure 6 It is a schematic diagram of the leg hook frame in the utility model.

[0018] In the figure: 1. Supine board main frame; 11. Support frame; 12. Supine board; 13. Support beam; 2. Adjustment frame; 21. Adjustment plate; 22. Rotor; 23. Rotating shaft; 24. Support pipe; 25. Mounting seat; 3. Leg hook frame; 31. U-shaped frame; 32. Fixing hole; 33. Leg hook rod; 4. Spring knob. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0020] See also Figure 1-6. A sit-up leg hook frame height adjustment structure, comprising a supine board main frame 1, an adjustment frame 2 and a leg hook frame 3, the front end of the supine board main frame 1 is installed with the adjustment frame 2 by bolts, and the leg hook frame 3 is installed above the leg hook frame 3, and the leg hook frame 3 is fixed by a spring knob 4, the supine board main frame 1 comprises a supporting frame 11, a supine board 12 fixed on the surface of the supporting frame 11 and a supporting beam 13 arranged laterally inside the supporting frame 11, the adjustment frame 2 comprises a mounting seat 25 with a through hole at the bottom and a supporting tube 24 vertically fixed in the middle of the mounting seat 25, an adjustment disk 21 fixed at the upper end of the support tube 24 and a rotatable rotor 22 installed inside the adjustment disk 21, a rotating shaft 23 is fixed at the center inside the rotor 22, and the rotating shaft 23 is fixed together with a U-shaped frame 31 on the leg hook frame 3 by bolts, a fixing hole 32 is provided on the side of the U-shaped frame 31, and a leg hook rod 33 is fixed on the top of the U-shaped frame 31, and the spring knob 4 is screwed inside the fixing hole 32.

[0021] The support beam 13 installed inside the support frame 11 is a detachable structure. The support beam 13 includes a single-hole support beam, a non-hole support beam and a double-hole support beam, and a support foot pad is installed at the bottom of the double-hole support beam.

[0022] A plurality of through holes are evenly formed on the outer wall of the adjusting disk 21 , and the lower rod of the spring knob 4 screwed on the fixing hole 32 is inserted into the through holes of the adjusting disk 21 .

[0023] The rotor 22 is rotatable inside the circular adjusting disk 21 , and the leg hook frame 3 is fixed on the rotating shaft 23 and rotates synchronously.

[0024] Two groups of leg hook rods arranged on the leg hook frame 3 are covered with foam sleeves.

[0025] The support tube 24 is a waist-shaped tube, and an arc groove for fixing the rotor 22 is provided at the upper end of the support tube 24 , and the width of the rotor 22 is larger than the width of the support tube 24 .

[0026] Fix the adjustment frame 2 on the supine board main frame 1 with screws, fix the leg hook frame 3 to the adjustment frame 2 with screws, install the spring knob on the leg hook frame 3, adjust the height of the leg hook frame by rotating the leg hook frame 3 on the adjustment frame 2, and fix it with the spring knob 4.

[0027] First of all, the supine board main frame 1 is the core supporting structure of the entire device, which is sturdy and stable. The supine board 12 fixed on the surface of the support frame 11 ensures the stability of the user during exercise. The support beams 13 arranged laterally inside the support frame 11 not only enhance the stability of the overall structure, but also enable the device to adapt to users of different body shapes and needs. The support beams 13 adopt a detachable structure, including single-hole support beams, non-hole support beams and double-hole support beams, which are convenient for users to flexibly adjust according to their needs.

[0028] The design of the adjustment frame 2 fully embodies the humanized concept. The mounting seat 25 with a through hole at the bottom is convenient for bolt connection with the supine board main frame 1, and the installation is simple and quick. The support tube 24 adopts a waist-shaped tube, which is not only beautiful and generous, but also can effectively support the rotor 22. The rotor 22 can rotate inside the circular adjustment plate 21, so that the leg hook frame 3 can be fixed on the rotating shaft 23 and rotate synchronously, thereby realizing the height adjustment of the leg hook frame 3. This design allows users to flexibly adjust the height of the leg hook frame 3 according to their own height and exercise needs, thereby improving the exercise effect.

[0029] The design of the leg hook rack 3 also takes into account the user's comfort and usage experience. The two sets of leg hook rods are covered with foam covers, which not only increase the friction and prevent the legs from slipping, but also effectively relieve the user's discomfort during exercise. At the same time, the leg hook rack 3 is fixed by a spring knob 4, which is simple and convenient to operate, ensuring stability and safety during exercise.

[0030] It should be emphasized that the above description is only an embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present utility model, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A sit-up leg hook frame height adjustment structure, comprising a supine board main frame (1), an adjustment frame (2) and a leg hook frame (3), characterized in that: The front end of the supine board main frame (1) is mounted with an adjustment frame (2) by means of bolts, and a leg hook frame (3) is mounted above the leg hook frame (3), and the leg hook frame (3) is fixed by means of a spring knob (4). The supine board main frame (1) comprises a support frame (11), a supine board (12) fixed on the surface of the support frame (11), and a support beam (13) arranged transversely inside the support frame (11). The adjustment frame (2) comprises a mounting seat (25) with a through hole at the bottom and a support pipe (24) vertically fixed in the middle of the mounting seat (25), an adjustment disk (21) fixed at the upper end of the support pipe (24), and a rotatable rotor (22) mounted inside the adjustment disk (21), and a rotating shaft (23) is fixed at the center of the rotor (22), and the rotating shaft (23) is fixed to a U-shaped frame (31) on the leg hook frame (3) by means of bolts. A fixing hole (32) is provided on the side of the U-shaped frame (31), a leg hook rod (33) is fixed on the top of the U-shaped frame (31), and a spring knob (4) is screwed inside the fixing hole (32).

2. A sit-up leg hook height adjustment structure according to claim 1, characterized in that: The support beam (13) installed inside the support frame (11) is a detachable structure, and the support beam (13) includes a single-hole support beam, a hole-free support beam, and a double-hole support beam, and a support foot pad is installed at the bottom of the double-hole support beam.

3. A sit-up leg hook height adjustment structure according to claim 1, characterized in that: A plurality of through holes are evenly arranged on the outer wall of the adjusting disk (21), and the rod body below the spring knob (4) screwed to the fixing hole (32) is inserted into the through hole of the adjusting disk (21).

4. The sit-up leg hook height adjustment structure according to claim 1, characterized in that: The rotor (22) is rotatable inside the circular adjustment disk (21), and the leg hook frame (3) is fixed on the rotating shaft (23) and rotates synchronously.

5. The sit-up leg hook height adjustment structure according to claim 1, characterized in that: The two groups of leg hook rods arranged on the leg hook frame (3) are covered with foam sleeves.

6. The sit-up leg hook height adjustment structure according to claim 1, characterized in that: The support tube (24) is a waist-shaped tube, and an arc groove for fixing the rotor (22) is provided at the upper end of the support tube (24), and the width of the rotor (22) is greater than the width of the support tube (24).

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