Height-adjustable folding horizontal bar and parallel bars

Abstract

The utility model belongs to the technical field of fitness equipment, and particularly relates to height-adjustable folding horizontal bars and parallel bars. A height-adjustable folding horizontal bar and parallel bars comprises a bottom transverse pipe extending in the left-right direction; the two bases are arranged at the two ends of the bottom transverse pipe correspondingly, the bases can rotate around rotating axes extending in the front-back direction relative to the bottom transverse pipe, and the rotating axes of the two bases have the height difference for avoiding the rotating axes of the two bases; the main stand column is fixed on the base and is folded together with the base; the auxiliary stand columns are sleeved with the main stand column, the auxiliary stand columns can freely stretch out and draw back in the main stand column in the vertical direction, a cross rod is detachably fixed to the upper ends of the two auxiliary stand columns, and locking pieces for limiting free stretching out and drawing back of the auxiliary stand columns in the main stand column are arranged between the auxiliary stand columns and the main stand column; the supporting legs are arranged on the front side and the rear side of the base respectively, and the supporting legs can rotate relative to the base around a rotating axis extending in the left-right direction. The utility model has the advantage that the height can be adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of fitness equipment technology, and in particular relates to a height-adjustable folding parallel bars and horizontal bars. Background Technology

[0002] A folding parallel bar / monobar is a fitness equipment that integrates the functions of a single bar and parallel bars. Its folding design facilitates storage and saves space. Chinese Patent Application No. 202220077324.5 discloses a structurally stable folding parallel bar / monobar. This design features two sets of opposing first and second support bars in the height direction, with the second support bars located above the first support bars and folded by a rotating connection. A crossbar (convenient disassembly mechanism) is provided between the two second support bars; folding is achieved simply by rotating the second support bar to the outside of the first support bar.

[0003] However, this folding method has certain limitations. Because the first and second support bars require rotation to fold, this structure restricts the height adjustment function of the parallel bars and horizontal bars, making it difficult to meet the personalized needs of users of different heights. Since users have varying heights and body types, a fixed height may prevent them from achieving the most suitable height for their individual exercise needs, thus affecting exercise effectiveness and comfort. Utility Model Content

[0004] To address the shortcomings of existing technologies, a height-adjustable folding parallel bar and horizontal bar is provided.

[0005] This utility model is achieved using the following technical solution: a height-adjustable folding parallel bars and horizontal bars, comprising:

[0006] The bottom horizontal tube extends in the left-right direction;

[0007] Two bases are respectively located at both ends of the bottom horizontal tube. The bases can rotate relative to the bottom horizontal tube about a rotation axis extending in the front-back direction. The rotation axes of the two bases have a height difference that avoids each other.

[0008] The main column is fixed to the base and folds together with the base;

[0009] The secondary column is fitted around the main column and can freely extend and retract in the vertical direction within the main column. The upper ends of the two secondary columns are detachably fixed with crossbars. A locking device is provided between the secondary column and the main column to restrict the free extension and retraction of the secondary column within the main column.

[0010] The legs are located on the front and rear sides of the base. The legs can rotate relative to the base about a rotation axis extending in the left and right direction, and can then be folded together with the base.

[0011] In use, the sub-stand can be extended according to the user's needs, and then the position of the sub-stand on the main stand is locked by the locking member to make the horizontal bar have a height position suitable for the user. When the single bar or double bar needs to be folded, the sub-stand can be retracted to the limit position in the main stand and fixed by the locking member, and at the same time, the horizontal bar is removed from the sub-stand. And the support leg rotates around the rotation axis extending in the left-right direction relative to the base to make the support leg parallel to the main stand, and then the base is rotated, and the main stand, the sub-stand and the support leg are folded together with the base to complete the folding of the single bar or double bar.

[0012] The locking member can adopt any existing component that can fix the sub-stand on the main stand, such as a bolt, an elastic pin shaft, etc.

[0013] The rotation axes of the two bases have a height difference that avoids collision between the main stands, the support legs and the base when they rotate.

[0014] The support leg is used to support the base to ensure the stability of the base.

[0015] The main stand and the sub-stand can be extended and retracted, instead of being connected by rotation as in the comparative file, so that the height of the single bar or double bar can be adjusted to meet the needs of different people. At the same time, the base and the bottom horizontal pipe are folded together, so that the main stand, the sub-stand and the support leg are folded together, reducing the space occupied by the equipment, which is convenient for placement and transportation, and the operation is simple.

[0016] As a preferred embodiment, the sub-stand includes a first sub-stand and a second sub-stand, the first sub-stand is sleeved outside the second sub-stand, and the second sub-stand can freely extend and retract in the vertical direction in the first sub-stand, and the first sub-stand and the second sub-stand are fixed by the locking member.

[0017] The sub-stand includes a first sub-stand and a second sub-stand, and the two are sleeved with each other, which can ensure that the sub-stand has a longer length when extended, and a shorter length when retracted, thereby facilitating folding and storage.

[0018] As a preferred embodiment, the upper end of the second sub-stand is provided with a U-shaped slot that is open upward and cooperates with the horizontal bar.

[0019] The U-shaped slot can better cooperate with the horizontal bar.

[0020] As a preferred embodiment, the sub-stand and the main stand are each provided with a plurality of locking holes, and the locking holes are arranged at intervals in the vertical direction; the locking member has an external thread structure, and the locking member is threadedly connected with a nut after passing through the locking hole.

[0021] The locking member is threadedly connected with a nut after passing through the locking holes of the sub-stand and the main stand to fix the sub-stand and the main stand in the height direction.

[0022] As preferred, the base comprises two left and right spaced apart blocking pieces, the end of the leg is located between the two blocking pieces and is rotationally connected with the blocking pieces, the blocking pieces are provided with a first pin hole and a second pin hole, the first pin hole and the second pin hole are for the pin to be inserted, the leg is provided with a matching hole for the pin to pass through; the first pin hole and the second pin hole are located on the rotation path of the leg and correspond to the horizontal posture and the vertical posture of the leg respectively.

[0023] When the leg is not needed to be folded, the pin passes through the matching hole and the first pin hole to maintain the horizontal posture of the leg; when the leg is needed to be folded, the pin is first pulled out, then the leg is changed from the horizontal posture to the vertical posture, and then the pin passes through the matching hole and the second pin hole to maintain the vertical posture of the leg.

[0024] As preferred, the two ends of the bottom horizontal pipe are provided with a first connecting piece and a second connecting piece, the vertical length of the first connecting piece is greater than that of the second connecting piece, and the upper ends of the first connecting piece and the second connecting piece are provided with a rotating shaft for rotationally connecting the base with the bottom horizontal pipe.

[0025] The vertical length of the first connecting piece is greater than that of the second connecting piece, so that the rotating shaft has a height difference, so as to realize that the rotating axes of the two bases have a height difference.

[0026] As preferred, the base is matched with a first fastener, the first fastener is fixedly connected with the bottom horizontal pipe after passing through the base and the main column to limit the rotation of the base.

[0027] The first fastener limits the rotation of the base to ensure the stability of the single and double bar when in use. The indirect fixed connection between the first fastener and the bottom horizontal pipe is that the first fastener is fixedly connected with the first connecting piece or the second connecting piece of the bottom horizontal pipe. If the two ends of the bottom horizontal pipe are solid structures, the first fastener is directly fixedly connected with the bottom horizontal pipe.

[0028] As preferred, the base is matched with a second fastener, the second fastener is threadedly connected with the leg to fix the leg on the base.

[0029] The second fastener fixes the leg on the base to ensure the stability of the single and double bar when in use.

[0030] As preferred, the main column and the auxiliary column are provided with a plurality of vertically spaced apart insertion holes, and the double bar handle is detachably fixed with the insertion holes.

[0031] The double bar handle is any double bar handle adopted by any existing single and double bar.

[0032] Compared with the prior art, the height of the single and double bars can be adjusted to adapt to the requirements of different people, and the main stand, the auxiliary stand and the supporting leg are folded together, so that the space occupied by the equipment is reduced, the equipment is convenient to place and transport, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a structural schematic view of the utility model;

[0034] Figure 2 It is a rear view structural schematic view of the utility model;

[0035] Figure 3 It is Figure 1 It is an enlarged schematic view of the section at A in the middle;

[0036] Figure 4 It is Figure 1 It is an enlarged schematic view of B in the middle;

[0037] Figure 5 It is Figure 1 It is an enlarged schematic view of the section at C in the middle;

[0038] Figure 6 It is Figure 2 It is an enlarged schematic view of the section at D in the middle;

[0039] Figure 7 It is a structural schematic view of the bottom of the base;

[0040] Figure 8 It is a structural schematic view of the base after being folded;

[0041] Figure 9 It is a structural schematic view of the supporting leg after being folded;

[0042] Figure 10 It is a structural schematic view of the base after being folded.

[0043] Reference signs: 1, bottom horizontal pipe; 11, first connecting sheet; 12, second connecting sheet; 2, base; 21, baffle; 211, first pin shaft hole; 212, second pin shaft hole; 22, pin shaft; 3, main stand; 4, auxiliary stand; 41, first auxiliary stand; 42, second auxiliary stand; 51, horizontal bar; 511, bolt; 512, screw hole; 52, double bar handle; 521, insertion hole; 6, supporting leg; 7, locking part; 71, locking hole; 72, nut; 81, first fastener; 811, fastening hole; 82, second fastener; 9, shaft sleeve; 91, hinged lug. DETAILED DESCRIPTION

[0044] The utility model will be further described below according to the drawings and specific embodiments.

[0045] For example, Figure 1And Figure 2 As shown in the drawings, the embodiment discloses a high-low adjustable folding single-double bar, which comprises a bottom horizontal pipe 1 extending along the left-right direction, a base 2 hingedly connected to the left and right ends of the bottom horizontal pipe 1, the base 2 comprises two blocking sheets 21 arranged at intervals left and right, and a main vertical column 3 fixed between the two blocking sheets 21 and extending vertically. The main vertical column 3 is hollow, and a secondary vertical column 4 is sleeved on the main vertical column 3 and can freely extend and retract in the main vertical column 3. The secondary vertical column 4 comprises a first secondary vertical column 41 and a second secondary vertical column 42, the pipe diameter of the first secondary vertical column 41 is larger than that of the second secondary vertical column 42, and the first secondary vertical column 41 is sleeved on the outside of the second secondary vertical column 42, and the second secondary vertical column 42 can freely extend and retract in the first secondary vertical column 41.

[0046] As shown in the drawings, Figure 1 , Figure 5 , Figure 6 and Figure 8 As shown in the drawings, the upper end of the second secondary vertical column 42 is provided with a U-shaped groove opening upward, the bottom of the U-shaped groove is provided with a threaded hole 512, and the horizontal rod 51 is placed in the U-shaped groove and then fixed to the second secondary vertical column 42 by the threaded hole 512 and the bolt 511 in a threaded manner. The first secondary vertical column 41, the second secondary vertical column 42 and the main vertical column 3 are all provided with a plurality of transversely penetrating locking holes 71, and the plurality of locking holes 71 are arranged at intervals along the vertical direction. The locking member 7 has an external thread structure which is screwed with the nut 72 after penetrating the locking hole 71 to fix the first secondary vertical column 41 and the second secondary vertical column 42 or the first secondary vertical column 41 and the main vertical column 3. The first secondary vertical column 41, the second secondary vertical column 42 and the main vertical column 3 are also all provided with an insertion hole 521, and the insertion hole 521 is used for inserting the double bar handle 52.

[0047] As shown in the drawings, Figures 1 to 4 , and Figure 10 As shown in the drawings, the first connecting sheet 11 and the second connecting sheet 12 are respectively fixed at the two ends of the bottom horizontal pipe 1, the vertical length of the first connecting sheet 11 is greater than that of the second connecting sheet 12, the upper end of the first connecting sheet 11 and the second connecting sheet 12 is provided with an axle sleeve 9 extending along the front-back direction, and a rotating shaft (not shown in the drawing) penetrates the axle sleeve. The inner side of the base 2 is provided with a hinged lug 91, the rotating shaft penetrates the hinged lug 91 and the axle sleeve 9 to realize the hinged connection between the base 2 and the bottom horizontal pipe 1, and the axis of the rotating shaft extends along the front-back direction. The main vertical column 3 is located between the two blocking sheets 21, the first fastener 81 is screwed with the fastening hole 811 of the blocking sheet 21, the main vertical column 3 and the first connecting sheet 11 or the second connecting sheet 12, so as to fix the base 2, the first connecting sheet 11 and the second connecting sheet 12 together to limit the shaking or rotation of the base 2 when the single-double bar is used.

[0048] As shown in the drawings, Figures 1 to 4 , and Figures 7 to 10As shown, the foot 6 extends in the front-rear direction, and the end of the foot 6 that cooperates with the base 2 is also provided with a shaft sleeve 9, the shaft sleeve 9 of the foot 6 extends in the left-right direction, and the shaft sleeve 9 is also matched with a rotating shaft (not shown in the figure), the rotating shaft 9 passes through the base 2 and the shaft sleeve 9 of the foot 6 to realize the hinged connection of the foot 6 and the base 2, and the rotating axis of the foot 6 extends in the left-right direction.

[0049] The first pin shaft hole 211 and the second pin shaft hole 212 are provided on the baffle 21, and the end of the foot 6 that cooperates with the base 2 is provided with a cooperating hole (not shown in the figure), the first pin shaft hole 211 and the second pin shaft hole 212 are both located on the rotating path of the foot 6, and the first pin shaft hole 211 corresponds to the flat posture of the foot 6, and the second pin shaft hole 212 corresponds to the vertical posture of the foot 6. When the foot 6 is placed flat on the base 2, the cooperating hole of the foot 6 is aligned with the first pin shaft hole 211, and at this time the pin shaft 22 can pass through the cooperating hole and the first pin shaft hole 211 to limit the rotation of the foot 6 and maintain the flat state of the foot 6. When the foot 6 is vertically placed on the base 2, the cooperating hole of the foot 6 is aligned with the second pin shaft hole 212, and at this time the pin shaft 22 can pass through the cooperating hole and the second pin shaft hole 212 to limit the rotation of the foot 6 and maintain the vertical state of the foot 6.

[0050] A second fastener 82 is provided at the lower end of the base 2, which passes through the bottom sheet of the base 2 upwardly and is threadedly matched with the foot 6.

[0051] When the above single and double bars need to be adjusted in height, only the locking member 7 needs to be unscrewed, and then the length of the auxiliary column 4 can be freely adjusted, and then the locking member 7 is used to fix the auxiliary column 4 again. When the single and double bars need to be folded, the locking member 7 is unscrewed, the auxiliary column 4 is retracted into the main column 3, and then the locking member 7 is used to lock the auxiliary column 4 again, and the cross bar 51 is removed from the auxiliary column 4. Then, the locking state of the first fastener 81 and the second fastener 82 is released, the bolt 22 is pulled out to make the foot 6 rotate upwardly so that the foot 6 is parallel to the main column 3, and then the bolt 22 is inserted into the second pin shaft hole 212 to fix the foot 6. Finally, the entire base 2 is turned inwardly to make the main columns 3 stacked together and parallel to the bottom cross pipe 1.

Claims

1. A height-adjustable folding single / double bar, characterized by, The utility model relates to a folding stand, comprising: a bottom cross pipe extending in the left-right direction; two bases respectively arranged at the two ends of the bottom cross pipe, the bases being rotatable relative to the bottom cross pipe about rotation axes extending in the front-back direction, the rotation axes of the two bases having a height difference that allows mutual avoidance; a main stand fixed to the bases and foldable together with the bases; two auxiliary stands sleeved by the main stand and freely extendable in the vertical direction within the main stand, the upper ends of the two auxiliary stands being detachably fixed to a cross bar, a locking member being arranged between the auxiliary stands and the main stand to limit the free extension of the auxiliary stands within the main stand; two feet respectively arranged at the front and back sides of the bases, the feet being rotatable relative to the bases about rotation axes extending in the left-right direction and then foldable together with the bases.

2. The height-adjustable folding single / double bar according to claim 1, characterized in that: The auxiliary stands include a first auxiliary stand and a second auxiliary stand, the first auxiliary stand being sleeved outside the second auxiliary stand and the second auxiliary stand being freely extendable in the vertical direction within the first auxiliary stand, the first auxiliary stand and the second auxiliary stand being also fixed by the locking member.

3. The height adjustable folding single / double bar according to claim 2, characterized in that: The upper end of the second auxiliary stand is provided with a U-shaped slot open upward and matched with the cross bar.

4. The height-adjustable folding single / double bar according to claim 1 or 2 or 3, characterized in that: The auxiliary stands and the main stand are each provided with a plurality of locking holes spaced apart in the vertical direction, the locking member having an external thread structure and being threadedly matched with a nut after passing through the locking holes.

5. The height adjustable folding single / double bar according to claim 1, wherein: The bases include two blocking sheets spaced apart in the left-right direction, the end portions of the feet being located between the two blocking sheets and rotatably connected to the blocking sheets, the blocking sheets being provided with first pin hole and second pin hole for a pin to be inserted, the feet being provided with a matching hole for the pin to pass through, the first pin hole and the second pin hole being located on the rotation path of the feet and corresponding to the horizontal and vertical attitudes of the feet respectively.

6. The height adjustable folding single / double bar of claim 1, wherein: The two ends of the bottom cross pipe are provided with a first connecting sheet and a second connecting sheet, the vertical length of the first connecting sheet being greater than that of the second connecting sheet, the upper ends of the first connecting sheet and the second connecting sheet being provided with rotation shafts for rotationally connecting the bases to the bottom cross pipe.

7. The height adjustable folding single / double bar according to claim 6, characterized in that: The bases are matched with a first fastener, the first fastener being directly or indirectly fixedly connected to the bottom cross pipe after passing through the bases and the main stand to limit the rotation of the bases.

8. The height adjustable folding single / double bar according to claim 7, characterized in that: The bases are matched with a second fastener, the second fastener being threadedly matched with the feet after passing through the bases to fix the feet to the bases.

9. The height adjustable folding single / double bar of claim 1, wherein: The main stand and the auxiliary stands are provided with a plurality of vertically spaced apart insertion holes, a double-bar handle being detachably fixed to the insertion holes.

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