Fitness chair with waist protection function

Abstract

The utility model relates to the technical field of fitness chairs, in particular to a fitness chair with a waist protection function, which comprises a chair seat, a front support and a rear support are arranged at two ends of the chair seat, a chair back is rotatably connected to one end, close to the rear support, of the chair seat, and a telescopic supporting piece capable of adjusting the supporting height is rotatably connected between the bottom side of the chair back and the rear support. A sliding positioning piece is installed at the position, close to the rotating connecting position of the chair seat, of the chair back, a waist supporting piece with the supporting height capable of being adjusted is installed on the sliding positioning piece, the waist supporting piece with the supporting height capable of being adjusted can be better attached to the waist of a user, and therefore the chair can be conveniently used by the users of different physiques.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness chairs, in particular to a fitness chair with waist protection. Background Art

[0002] Fitness chairs are a widely used fitness aid that come in a variety of styles. Their primary function is to provide a support platform for the user. Fitness chairs can be used alone to perform a variety of exercises, such as sit-ups, back raises, and plank butterfly exercises.

[0003] Some of the sitting / lying components included in traditional independent fitness chairs or fixed equipment support and protect the user's waist during exercise by designing lumbar supports. However, different users have different waist curvatures, so the height of the lumbar support needs to be adjusted to better fit the user's waist. Utility Model Content

[0004] The purpose of the present invention is to provide a fitness chair with waist protection to solve the problems raised in the above background technology.

[0005] The technical solution of the present utility model is: a fitness chair with lumbar protection, comprising a seat, a front support and a rear support are provided at both ends of the seat, an end of the seat close to the rear support is rotatably connected to a chair back, a telescopic support member with adjustable support height is rotatably connected between the bottom side of the chair back and the rear support, a sliding positioning member is installed at a position of the chair back close to the rotation connection of the seat, and a lumbar support member with adjustable support height is installed on the sliding positioning member.

[0006] The effects achieved by the above components are: the tilt support angle of the chair back can be adjusted through the telescopic support member, and the support position of the lumbar support member on the chair back can be easily adjusted through the sliding positioning member. The lumbar support member with adjustable support height can better fit the user's waist, making it easier for users of different physiques to use it.

[0007] Preferably, the sliding positioning member includes a side groove opened on the chair back, and the side groove is slidably installed with a sliding seat mounted on the chair back. A positioning bolt that abuts against the inner wall of the side groove is threadedly inserted on one side of the sliding seat, and a clamping pin connected to the lumbar support member is fixed on the sliding seat.

[0008] The effects achieved by the above components are: the slide seat can slide along the side groove on the chair back, the slide seat is locked by the positioning bolt, and the support position of the lumbar support member is adjusted to facilitate supporting the user's waist.

[0009] Preferably, the lumbar support member includes a support plate fixed on the slide seat, a supporting airbag is installed on the top of the support plate, the supporting airbag is provided with an expansion ring in a vertical expansion direction, one end of the supporting airbag is connected to an air guide tube, the end of the air guide tube away from the supporting airbag is connected to an air tank, and a valve is provided at the connection between the air tank and the air guide tube.

[0010] The effect achieved by the above components is: the supporting airbag can be easily installed on the slide through the support plate, and the compressed air in the air tank is introduced into the supporting airbag from the air duct by opening the valve. The expansion ring causes the supporting airbag to expand, increasing the overall support height until it fits the user's waist and then the valve is closed to complete the support and protection purpose. When the height of the supporting airbag needs to be lowered, you only need to open the valve and squeeze the supporting airbag with your waist to press the gas back into the air tank until the reasonable height is adjusted and the valve is closed for easy use.

[0011] Preferably, the telescopic support member includes a sliding sleeve rotatably connected to the bottom of the chair back, a sleeve rod rotatably connected to the back support is slidably inserted into the bottom end of the sliding sleeve, and a locking member that cooperates with the sleeve rod is provided on the outer side of the sliding sleeve.

[0012] The effect achieved by the above components is that the overall height of the sliding sleeve and the sleeve rod can be adjusted through the locking member, thereby achieving the purpose of adjusting the seat back angle.

[0013] Preferably, protective pads are provided on the seat, the front support and the chair back.

[0014] The effect achieved by the above components is that the protective pad can make the device more comfortable to use.

[0015] Preferably, a headrest is provided at the top of the chair back.

[0016] The effect achieved by the above components is that the headrest can protect the user's head during use.

[0017] The present invention provides a fitness chair with waist protection through improvement. Compared with the prior art, it has the following improvements and advantages:

[0018] Firstly, the utility model can slide along the side groove on the chair back through the slide seat, and the slide seat is locked by the positioning bolt to adjust the support position of the lumbar support member, so as to facilitate the support of the user's waist;

[0019] Secondly, the utility model can facilitate the installation of the supporting airbag on the sliding seat through the support plate. By opening the valve, the compressed air in the air tank is introduced into the supporting airbag from the air guide tube. The expansion ring causes the supporting airbag to expand, increasing the overall support height until it fits the user's waist and then the valve is closed to achieve the support and protection purpose. When the height of the supporting airbag needs to be lowered, it is only necessary to open the valve and squeeze the supporting airbag with the waist to press the gas back into the air tank until the reasonable height is adjusted and the valve is closed, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the waist support member of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the sliding positioning member in the utility model.

[0024] Description of reference numerals:

[0025] 1. Seat; 2. Front support; 3. Back support; 4. Backrest; 5. Telescopic support; 6. Lumbar support; 61. Pallet; 62. Support airbag; 63. Expansion ring; 64. Air tank; 65. Valve; 66. Air guide tube; 7. Sliding positioning piece; 71. Sliding seat; 72. Positioning bolt; 73. Side groove. DETAILED DESCRIPTION

[0026] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The present invention provides a fitness chair with waist protection through improvement. The technical solution of the present invention is:

[0028] In the embodiment of the present utility model, as Figure 1-Figure 3As shown, a fitness chair with waist protection comprises a seat 1, a front support 2 and a back support 3 are provided at both ends of the seat 1, a seat back 4 is rotatably connected to one end of the seat 1 close to the back support 3, a protective pad is provided on the seat 1, the front support 2 and the back support 4, a headrest is provided on the top of the back support 4, a telescopic support member 5 with adjustable support height and length is rotatably connected between the bottom side of the back support 4 and the back support 3, the telescopic support member 5 comprises a sliding sleeve rotatably connected to the bottom of the back support 4, a sleeve rod rotatably connected to the back support 3 is slidably inserted at the bottom end of the sliding sleeve, a locking member that cooperates with the sleeve rod to stop is provided on the outside of the sliding sleeve, and the locking member is engaged with the sleeve rod through the locking mechanism. The stopper can adjust the overall height of the sliding sleeve and the sleeve rod, thereby achieving the purpose of adjusting the angle of the chair back 4. A sliding positioning member 7 is installed at the position of the chair back 4 near the rotation connection of the seat 1. The sliding positioning member 7 includes a side groove 73 opened on the chair back 4. The side groove 73 is slidably installed with a slide 71 set on the chair back 4. A positioning bolt 72 that conflicts with the inner wall of the side groove 73 is threadedly inserted on one side of the slide 71. A card pin connected to the lumbar support member 6 is fixed on the slide 71. The slide 71 can slide along the side groove 73 on the chair back 4 through the slide, and the positioning bolt 72 is used to adjust the slide 71 is locked and the support position of the lumbar support member 6 is adjusted to facilitate supporting the user's waist. A lumbar support member 6 with adjustable support height is installed on the sliding positioning member 7. The lumbar support member 6 includes a support plate 61 fixed on the sliding seat 71. A supporting airbag 62 is installed on the top of the support plate 61. The supporting airbag 62 is provided with an expansion ring 63 in a vertical expansion direction. One end of the supporting airbag 62 is connected to an air guide tube 66. The end of the air guide tube 66 away from the supporting airbag 62 is connected to an air tank 64. A valve 65 is provided at the connection between the air tank 64 and the air guide tube 66. The supporting airbag 62 can be easily installed on the slide 71 through the support plate 61. By opening the valve 65, the compressed air in the air tank 64 is introduced into the supporting airbag 62 from the air guide tube 66. The supporting airbag 62 is expanded due to the expansion ring 63, increasing the overall support height until it fits the user's waist and then the valve 65 is closed to achieve the support and protection purpose. When the height of the supporting airbag 62 needs to be lowered, it is only necessary to open the valve 65 and squeeze the supporting airbag 62 with the waist to press the gas back into the air tank 64 until the reasonable height is adjusted and the valve 65 is closed.

[0029] The working principle of the fitness chair with lumbar protection provided by the present invention is as follows: the inclination support angle of the chair back 4 can be adjusted by the telescopic support member 5, and the slide seat 71 can slide on the chair back 4 along the side groove 73. The slide seat 71 is locked by the positioning bolt 72 to adjust the support position of the lumbar support member 6. The support plate 61 can facilitate the installation of the supporting airbag 62 on the slide seat 71. By opening the valve 65, the compressed air in the air tank 64 is introduced into the supporting airbag 62 from the air guide tube 66. The expansion ring 63 causes the supporting airbag 62 to expand, increasing the overall support height until it fits the user's waist and then closing the valve 65 to complete the support and protection purpose. When it is necessary to lower the height of the supporting airbag 62, it is only necessary to open the valve 65 and squeeze the supporting airbag 62 with the waist to press the gas back into the air tank 64 until the reasonable height is adjusted and the valve 65 is closed.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fitness chair with waist protection, comprising a seat (1), wherein a front support (2) and a rear support (3) are provided at both ends of the seat (1), a backrest (4) is rotatably connected to one end of the seat (1) close to the rear support (3), and a telescopic support member (5) with adjustable support height is rotatably connected between the bottom side of the backrest (4) and the rear support (3), characterized in that: A sliding positioning member (7) is installed on the chair back (4) at a position close to the rotation connection of the chair seat (1), and a waist support member (6) with adjustable support height is installed on the sliding positioning member (7).

2. The fitness chair with waist protection according to claim 1, characterized in that: The sliding positioning member (7) includes a side groove (73) provided on the chair back (4); a sliding seat (71) sleeved on the chair back (4) is slidably mounted on the side groove (73); a positioning bolt (72) that contacts the inner wall of the side groove (73) is threadedly inserted on one side of the sliding seat (71); and a clamping pin connected to the lumbar support member (6) is fixed on the sliding seat (71).

3. The fitness chair with waist protection according to claim 2, characterized in that: The waist support member (6) comprises a supporting plate (61) fixed on the sliding seat (71); a supporting air bag (62) is installed on the top of the supporting plate (61); the supporting air bag (62) is provided with an expansion ring (63) in a vertical expansion direction; one end of the supporting air bag (62) is connected to an air guide tube (66); the end of the air guide tube (66) away from the supporting air bag (62) is connected to an air storage tank (64); a valve (65) is provided at the connection between the air storage tank (64) and the air guide tube (66).

4. The fitness chair with waist protection according to claim 1, characterized in that: The telescopic support member (5) comprises a sliding sleeve rotatably connected to the bottom of the chair back (4); a sleeve rod rotatably connected to the back support (3) is slidably inserted at the bottom end of the sliding sleeve; and a locking member is provided on the outer side of the sliding sleeve to cooperate with the sleeve rod for blocking.

5. The fitness chair with waist protection according to claim 1, characterized in that: The seat (1), the front support (2) and the backrest (4) are all provided with protective pads.

6. The fitness chair with waist protection according to claim 1, characterized in that: A headrest is provided at the top end of the chair back (4).

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