A convenient folding fitness chair

Abstract

The present invention discloses a conveniently foldable fitness chair, comprising a support frame, a front support leg and a rear support leg, wherein the front support leg is provided with a first insertion hole, and the rear support leg is provided with a second insertion hole; the front end of the support frame is provided with a first positioning hole and a second positioning hole respectively corresponding to the front support leg in an open state and a folded state and connected to the first insertion hole, and a first pin is inserted into a channel formed by the first insertion hole and the first positioning hole or the second positioning hole to achieve locking in the corresponding state; the rear end of the support frame is provided with a third positioning hole and a fourth positioning hole respectively corresponding to the rear support leg in an open state and a folded state and connected to the second insertion hole, and a second pin is inserted into a channel formed by the second insertion hole and the third positioning hole or the fourth positioning hole to achieve locking in the corresponding state. The present invention can conveniently realize the opening or folding of the fitness chair by plugging and pulling out the pin, so as to facilitate use, storage and transportation.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment, in particular to a fitness chair which is convenient to fold. Background Art

[0002] The fitness chair is a common fitness equipment, which is often used for exercises such as sit-ups and dumbbell (barbell) lifts. Existing fitness chairs are mostly transported in disassembled packages for easy transportation. This requires users to assemble some parts by themselves according to the instructions, which is very inconvenient for users. For manufacturers, due to the disassembled packaging, if the interchangeability between production parts is poor, there are quality risks, and there is also the risk of missing or losing accessories. If the fitness chair is assembled as a whole and then transported, it will be more labor-intensive, with high transportation costs, and it is easy to cause bumps and damage. Summary of the invention

[0003] The present invention aims to overcome the defects in the prior art and provide a conveniently foldable fitness chair, which can be conveniently switched between an open state and a folded state by plugging and pulling out a pin, so that the fitness chair can be conveniently opened for use or folded for storage and transportation.

[0004] To achieve the above object, the present invention provides a conveniently foldable fitness chair, comprising a support frame, and front support legs and rear support legs respectively hinged to the front and rear ends of the support frame, wherein the front support legs are provided with a first insertion hole, and the rear support legs are provided with a second insertion hole;

[0005] The front end of the support frame is provided with a first positioning hole and a second positioning hole which are connected to the first insertion hole when the front support leg is in the open state and the folded state respectively, and the first pin is inserted into a channel formed by the first insertion hole and the first positioning hole or the second positioning hole to realize the locking of the front support leg in the corresponding open state or the folded state;

[0006] The rear end of the support frame is provided with a third positioning hole and a fourth positioning hole which are connected to the second insertion hole when the rear supporting leg is in the open state and the folded state respectively. The second pin shaft is inserted into the channel formed by the second insertion hole and the third positioning hole or the fourth positioning hole to realize the locking of the rear supporting leg in the corresponding open state or the folded state.

[0007] It is further configured that: the upper end of the front supporting foot has first locking ears respectively located on both sides of the supporting frame, and the first insertion hole is located on the first locking ears;

[0008] The upper end of the rear supporting foot has second locking ears located on both sides of the supporting frame, and the second insertion hole is located on the second locking ears.

[0009] It is further configured that: a back cushion and a seat cushion are sequentially arranged on the upper end surface of the support frame from front to back, and the seat cushion is fixedly mounted on the rear end of the support frame;

[0010] The rear end of the cushion is rotatably connected to the support seat, and a support rod is rotatably provided on the lower surface of the cushion. A limiting bracket is fixedly installed on the upper end face of the support frame corresponding to the lower side of the cushion, and the limiting bracket is provided with a plurality of slots that cooperate with the lower end of the support rod to support the cushion at different angles.

[0011] It is further configured that: two fixing plates corresponding to the first locking ears and extending vertically are fixedly installed on the lower surface of the cushion, and the support rod is rotatably installed between the two fixing plates;

[0012] The two fixing plates are formed with a first hook structure on the lower side corresponding to the front end thereof, and the two first locking ears are provided with a second hook structure. When the cushion lies flat on the support frame and the front supporting legs are in a folded state, the first hook structure is hooked and locked with the second hook structure.

[0013] It is further configured as follows: the front supporting legs and the rear supporting legs are both in an inverted "T"-shaped structure.

[0014] It is further configured that: when the front supporting legs and the rear supporting legs are in an open state, the lower end surface of the supporting frame rests on the front upper end portion of the vertical portion of the front supporting legs and / or the rear upper end portion of the vertical portion of the rear supporting legs.

[0015] It is further configured that: the insertion ends of the first pin shaft and the second pin shaft are both provided with a first jumping bean spring structure.

[0016] Compared with the prior art, the present invention has a simple and reasonable structure, and the various components are interconnected, which is convenient for overall packaging, transportation and storage, and effectively avoids the loss of components; at the same time, the fitness chair can be easily switched between the open state and the folded state by plugging and pulling out the pin shaft and reliably locked in the corresponding state, which is convenient for opening for exercise or folding for storage and transportation; furthermore, the support rod can lock the cushion support at different angles to meet the needs of different exercises. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a conveniently foldable fitness chair of the present invention (in an open state);

[0018] Figure 2 It is a three-dimensional structural diagram of a fitness chair (cushion angle adjustment);

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of a fitness chair (folded state).

[0020] The following reference numerals are marked on the drawings in conjunction with the drawings:

[0021] 1. Support frame; 11. Limit bracket; 111. Slot; 2. Front support foot; 21. First locking ear; 211. Second hook-shaped structure; 22. Auxiliary support foot; 3. Rear support foot; 31. Second locking ear; 4. Cushion; 41. Fixing plate; 411. First hook-shaped structure; 42. Support rod; 5. Cushion; 6. First pin shaft; 7. Second pin shaft; 8. Third pin shaft. DETAILED DESCRIPTION

[0022] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0023] The present invention discloses a conveniently foldable fitness chair. Figure 1 , Figure 2 and Figure 3 As shown, it includes a support frame 1, a front support leg 2 hinged at the front end of the support frame 1, and a rear support leg 3 hinged at the rear end of the support frame 1. The front support leg 2 and the rear support leg 3 can be rotated to switch between the open state and the folded state, so as to facilitate opening for use or folding for storage and transportation. In order to ensure the working stability of the fitness chair corresponding to the open state and the folded state, the upper end of the front support leg 2 is provided with a first insertion hole, and the front end of the support frame 1 is provided with a first positioning hole and a second positioning hole respectively corresponding to the first insertion hole when the front support leg 2 is in the open state or the folded state. The first pin shaft 6 is inserted into the channel formed by the first insertion hole and the first positioning hole or the second positioning hole to realize the front support leg 2 corresponding to the open state or the folded state. The second pin shaft 7 is inserted into the channel formed by the second insertion hole and the third positioning hole or the fourth positioning hole to realize the stable locking of the rear supporting foot 3 in the corresponding open state or folded state. Preferably, the second pin shaft 7 is provided with a jumping bean spring structure corresponding to its insertion end, which can effectively prevent the first pin shaft 6 from detaching from the channel without external force; the upper end of the rear supporting foot 3 is provided with a second insertion hole, and the rear end of the supporting frame 1 is provided with a third positioning hole and a fourth positioning hole which are respectively connected with the second insertion hole when the rear supporting foot 3 is in the open state or the folded state. The second pin shaft 7 is inserted into the channel formed by the second insertion hole and the third positioning hole or the fourth positioning hole to realize the stable locking of the rear supporting foot 3 in the corresponding open state or the folded state. Preferably, the second pin shaft 7 is provided with a jumping bean spring structure corresponding to its insertion end, which can effectively prevent the second pin shaft 7 from detaching from the channel without external force.

[0024] Specifically, the upper end of the front supporting foot 2 has a first locking ear 21 respectively located on both sides of the supporting frame 1, and the supporting frame 1 is installed between the two first locking ears 21 and is passed through a rotating shaft to realize the hinged connection between the front supporting foot 2 and the supporting frame 1; similarly, the upper end of the rear supporting foot 3 has a second locking ear 31 respectively located on both sides of the supporting frame 1, and the supporting frame 1 is installed between the two second locking ears 31 and is passed through a rotating shaft to realize the hinged connection between the rear supporting foot 3 and the supporting frame 1, and the first insertion hole and the second insertion hole are respectively correspondingly arranged on the two first locking ears 21 and the second locking ears 31.

[0025] In the above scheme, a back cushion 4 and a seat cushion 5 are arranged on the upper end surface of the support frame 1 in sequence from front to back, and the seat cushion 5 is fixedly mounted on the rear end of the support frame 1, and the rear end of the back cushion 4 is rotatably connected to the support frame 1 so that the back cushion 4 can be turned over through the connection at the rear end; a support rod 42 is rotatably connected to the lower surface of the back cushion 4, and a limiting bracket 11 is fixedly mounted on the upper surface of the support frame 1 corresponding to the lower surface of the back cushion 4, and a slot 111 connected to the support rod 42 is arranged on the limiting bracket 11, and the support rod 42 is engaged with different slots 111 on the limiting bracket 11, so that the back cushion 4 can be supported and locked at different angles to meet the needs of different exercises. Request; Preferably, the lower surface of the cushion 4 is provided with two fixing plates 41 which correspond to the first locking ears 21 one by one and extend vertically, the support rod 42 is rotatably installed between the two fixing plates 41, and the two fixing plates 41 are formed with a first hook structure 411 on the lower side corresponding to the front end thereof, and the two first locking ears 31 of the front supporting feet 3 are provided with a second hook structure 211, when the cushion 4 lies flat on the support frame 1 and the rear support frame 1 is in a folded state, the first hook structure 411 is hooked with the second hook structure 211, so that the cushion 4 is firmly locked in the current state, thereby facilitating the storage or transportation of the fitness chair and preventing the fitness chair from opening automatically.

[0026] In the above solution, to ensure that the fitness chair is stably placed on the ground, both the front support feet 2 and the rear support feet 3 are in an inverted "T" shape; when both the front support feet 2 and the rear support feet 3 are in the open state, the lower end surface of the support frame 1 is placed on the upper front side of the vertical part of the front support feet 2 and / or on the upper rear side of the vertical part of the rear support feet 3. Preferably, the support frame 1 is placed on the upper ends of both the front and rear support feet 3 at the same time, thus effectively avoiding the direct force on the hinge connection between the front support feet 2 and the rear support feet 3. Further, the horizontal part of the front support feet 2 and / or the horizontal part of the rear support feet 3 are provided with auxiliary support feet 22 that can be rotated and opened to extend the length of the horizontal part. In this example, only the front support feet 2 are provided with auxiliary support feet 22. Specifically, the lower surface of the front support frame 1 corresponding to its horizontal part is provided with a horizontal notch so that the horizontal part has a "冂" shape structure. The auxiliary support feet 22 are two and are rotatably arranged on both sides of the horizontal notch. The auxiliary support feet 22 are provided with third insertion holes, and the horizontal notch is provided with fifth positioning holes corresponding to the auxiliary support feet 22 to be in communication with the third insertion holes when the auxiliary support feet 22 are turned outwards to be in a horizontal state. The third pin shafts 8 are respectively inserted into the channels formed by the cooperation of the third insertion holes and the fifth positioning holes to realize the locking of the auxiliary support feet 22 in the horizontal state, so as to extend the horizontal length and improve the support stability. Preferably, the third pin shafts 8 are provided with a jumping bean spring structure corresponding to their insertion ends; when in the folded state, the auxiliary support feet 22 are turned over by pulling out the third pin shafts 8 to reduce the horizontal length and the overall width of the fitness chair, which is convenient for storage and transportation; similarly, the rear support feet 3 can also be provided with auxiliary support feet 22 to improve the support stability.

[0027] Compared with the prior art, the structure of the present invention is simple and reasonable, and the components are interconnected, so it is convenient for overall packaging, transportation and storage, effectively avoiding the loss of components; at the same time, through the insertion and extraction of the pin shafts, it is convenient to switch the fitness chair between the open state and the folded state and reliably lock it in the corresponding state, so as to facilitate opening for exercise or folding for storage and transportation; furthermore, through the support rod, the cushion can be supported and locked at different angles to meet the needs of different exercises.

[0028] The above is only the embodiment of the present invention disclosed, however, the present invention is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A conveniently foldable fitness chair, characterized in that: It includes a support frame, and a front support leg and a rear support leg respectively hinged to the front and rear ends of the support frame, wherein the front support leg is provided with a first insertion hole, and the rear support leg is provided with a second insertion hole; The front end of the support frame is provided with a first positioning hole and a second positioning hole which are connected to the first insertion hole when the front support leg is in the open state and the folded state respectively, and the first pin is inserted into a channel formed by the first insertion hole and the first positioning hole or the second positioning hole to realize the locking of the front support leg in the corresponding open state or the folded state; The rear end of the support frame is provided with a third positioning hole and a fourth positioning hole which are connected to the second insertion hole when the rear support leg is in the open state and the folded state respectively, and the second pin is inserted into the channel formed by the second insertion hole and the third positioning hole or the fourth positioning hole to realize the locking of the rear support leg in the corresponding open state or folded state; The upper end of the front support leg has first locking ears respectively located on both sides of the support frame, and the first insertion hole is located on the first locking ears; The upper end of the rear supporting foot has second locking ears located on both sides of the supporting frame, and the second insertion hole is located on the second locking ears; The upper end surface of the support frame is provided with a back cushion and a seat cushion in sequence from front to back, and the seat cushion is fixedly mounted on the rear end of the support frame; The rear end of the cushion is rotatably connected to the support seat, a support rod is rotatably provided on the lower surface of the cushion, a limit bracket is fixedly installed on the upper end surface of the support frame corresponding to the lower side of the cushion, and a plurality of slots are provided on the limit bracket to cooperate with the lower end of the support rod to support the cushion at different angles; The lower surface of the cushion is fixedly mounted with two fixing plates corresponding to the first locking ears one by one and extending vertically, and the support rod is rotatably mounted between the two fixing plates; The two fixing plates are formed with a first hook structure at the lower side corresponding to the front end thereof, and the two first locking ears are provided with a second hook structure, and when the cushion is lying flat on the support frame and the front supporting legs are in a folded state, the first hook structure is hooked and locked with the second hook structure; The front supporting legs and the rear supporting legs are both in an inverted "T"-shaped structure.

2. A conveniently foldable fitness chair according to claim 1, characterized in that: When the front supporting legs and the rear supporting legs are in an open state, the lower end surface of the supporting frame rests on the front upper end of the vertical portion of the front supporting legs and / or the rear upper end of the vertical portion of the rear supporting legs.

3. The conveniently foldable fitness chair according to claim 1, characterized in that: The insertion ends of the first pin shaft and the second pin shaft are both provided with a first jumping bean spring structure.

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