Automatically inflatable and deflatable PVC yoga ball with Bluetooth support

Abstract

The present invention discloses an automatically inflatable and deflatable PVC yoga ball with Bluetooth support, belonging to the technical field of fitness equipment. It includes an anti-slip rubber layer, inside which there is an inner bladder. At the bottom end of the inner wall of the inner bladder, there is a center of gravity seat, and an inflation member is installed on the center of gravity seat. On the top of the center of gravity seat and on one side of the inflation member, there is a jacking mechanism. An unloading mechanism is installed on the outer wall of the jacking mechanism, and the top end of the unloading mechanism is connected to a supporting mechanism. At the top end of the inner wall of the inner bladder, there is an inflation seat, and a pressure detection member is assembled on the outer wall of the inflation member. Through the Bluetooth controller of the present invention, the power supply and power-off of the battery to the air pump are controlled. At the same time, the pressure inside the inner bladder is detected by the pressure detection member. When the pressure reaches the threshold value, the battery is controlled to stop supplying power to the air pump, so that the user can inflate the yoga ball conveniently and quickly, and the inflation amount is controllable.

Description

Technical Field

[0001] The present invention relates to the field of fitness equipment, and particularly to an automatically inflatable and deflatable PVC yoga ball with Bluetooth support. Background Art

[0002] A yoga ball, also known as a fitness ball or a yoga fitness ball, is a ball-shaped exercise tool for fitness. It is mostly made of soft PVC material. When the human body comes into contact with it, the inflated fitness ball will evenly caress the contact parts of the human body, thus producing a massage effect, which is beneficial to promoting blood circulation. Appropriate yoga ball exercises can promote physical health and coordinate the functions of the whole body. In addition, it has various activities: it can be lifted, ridden, lain on, patted, kicked, pressed, etc. It has good fitness effects, especially beneficial to the exercise of the spine and pelvis; and has a good auxiliary function for injury recovery and rehabilitation, with particularly significant curative effects on lumbar and back diseases; and it is relatively safe during exercise and not easily damaged; at the same time, it can gradually restore and improve the flexibility and balance of people (including patients and injured people), has the functions of adjusting posture and cardiopulmonary function, and also has a slimming effect: it is especially suitable for people with overweight bellies, thick hands and legs. With the help of simple yoga exercises, it can help you shape a perfect image.

[0003] During the use of a yoga ball, when a user first uses a brand-new yoga ball, it is usually necessary to externally connect an air pump through an adapter to inflate the yoga ball. Moreover, with the long-term use or long-term idleness of the yoga ball, the gas inside the yoga ball will be insufficient. At this time, it is necessary to find an air pump and an adapter again to inflate the yoga ball. And as the gas inside the yoga ball is gradually filled, one person needs to hold the yoga ball while another person presses the adapter to ensure that the yoga ball can be smoothly filled with enough gas. And how much gas is filled into the yoga ball depends entirely on personal experience, which may lead to the problem of over-inflation or under-inflation inside it. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatically inflatable and deflatable PVC yoga ball with Bluetooth support to solve the problem of inconvenient inflation of the yoga ball proposed in the above background art.

[0005] To achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions:

[0006] An automatically inflatable and deflatable PVC yoga ball with Bluetooth support provided by the present invention includes an anti-slip rubber layer. An inner bladder is provided inside the anti-slip rubber layer. A center of gravity seat is provided at the bottom end of the inner wall of the inner bladder. An inflating member is installed on the center of gravity seat. A jacking mechanism is provided on one side of the inflating member at the top end of the center of gravity seat. A force-relieving mechanism is installed on the outer wall of the jacking mechanism. The top end of the force-relieving mechanism is connected to a support mechanism. An air charging seat is provided at the top end of the inner wall of the inner bladder. A pressure detection member is assembled on the outer wall of the inflating member;

[0007] The inflating member includes a protective box assembled on the top end of the center of gravity seat. A charging port is provided at the bottom end of the protective box. A wire box is installed on one side of the protective box. An air pump is connected to the side of the wire box away from the protective box. An air inlet pipe is provided at the input end of the air pump. An exhaust pipe is installed at the output end of the air pump;

[0008] The inside of the center of gravity seat is hollow. The input end of the center of gravity seat is communicated with the exhaust pipe. The output end of the center of gravity seat is respectively communicated with the input ends of the jacking mechanism and the support mechanism:

[0009] A storage battery and a Bluetooth controller are provided inside the protective box. The storage battery is electrically connected to the air pump through a wire. The pressure detection member is electrically connected to the storage battery through a wire.

[0010] Preferably, the jacking mechanism includes a first air duct connected to the output end of the center of gravity seat. A second air duct is provided on the inner wall of the first air duct. A third air duct is provided on the inner wall of the second air duct. A first exhaust valve is installed on the outer wall of the third air duct.

[0011] Preferably, the force-relieving mechanism includes a protective plate assembled on the top end of the protective box. A support column is fixedly assembled at the fixed point of the protective plate. An equalizing ring is provided at the top end of the support column. A load-bearing plate is connected to the top end of the equalizing ring. Reinforcing ribs are fixedly assembled at the top end of the load-bearing plate. A first telescopic tube is provided at the top end of the reinforcing ribs. A second telescopic tube is installed on one side of the first telescopic tube at the top end of the reinforcing ribs.

[0012] Preferably, the equalizing ring is located at the central position between the first telescopic tube and the second telescopic tube. The number of support columns is six groups. The load-bearing plate is assembled on the outer wall top end of the first air duct. The first telescopic tube is rotatably connected to the reinforcing rib through a rotating shaft. The second telescopic tube is rotatably connected to the reinforcing rib through a rotating shaft. Both the first telescopic tube and the second telescopic tube are rotatably connected to the support mechanism through a rotating shaft.

[0013] Preferably, the support mechanism includes a third air duct attached to the inner wall of the inner bladder. An upper support member is assembled inside the third air duct. An outer support member is installed on the outer wall of the upper support member. An air guiding block is connected to the top end of the outer support member.

[0014] Preferably, the upper support member includes a first return spring mounted on the bottom end of the inner wall of the third air guide tube, the top of the first return spring is equipped with a piston plate, the top of the piston plate is fixedly equipped with a fourth air guide tube, and the outer wall of the fourth air guide tube is provided with a receiving groove.

[0015] Preferably, the outer support member includes an elastic sealing plate fitted with the inner wall of the fourth air duct, the outer wall of the elastic sealing plate is provided with a wear-resistant portion, the outer wall of the wear-resistant portion is equipped with a connecting strip, and a side of the connecting strip away from the wear-resistant portion is provided with a resistance strip.

[0016] Preferably, the bottom end of the third air duct is connected to the output end of the center of gravity seat, the inner wall of the fourth air duct is provided with a sliding groove penetrating to its outer wall, the sliding groove is connected to the storage groove, the outer wall of the storage groove is fitted with the inner wall of the interference strip, the storage groove and the outer wall of the interference strip are located on the same arc surface, and the bottom end of the interference strip is provided with a guide slope.

[0017] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0018] The present invention provides an inflatable component and an air pressure detection component, so that the staff can control the battery to power on and off the air pump through a Bluetooth controller, and detect the pressure inside the inner tank through the air pressure detection component. When the pressure reaches a threshold, the battery is controlled to stop powering the air pump, so that the user can inflate the yoga ball conveniently and quickly, and the inflation amount is controllable.

[0019] The present invention arranges a center of gravity seat so that the center of gravity of the yoga ball moves downward, thereby increasing the stability of the yoga ball and reducing the probability of side slipping when the user uses the yoga ball. The yoga ball is easy to roll when idle, and the downward shift of the center of gravity can also reduce the occurrence of the above problems.

[0020] The present invention increases the area of the inner liner supported by the supporting mechanism, and the supporting mechanism can be deformed according to the use requirements, so that the volume can be reduced when stored for easy carrying, and the supporting force of the inner liner can be increased when used.

[0021] The present invention can perform multiple force unloading by arranging a lifting mechanism and a force unloading mechanism to cooperate with a supporting mechanism, so that when a user sits on it, the user will not sink quickly, but will descend slowly, reducing the user's sense of weightlessness. In addition, through the lifting mechanism, the force unloading mechanism and the supporting mechanism, the overall structure of the yoga ball is more solid, reducing the probability of bursting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings forming a part of this invention are used to provide a further understanding of the invention. The schematic embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 is a schematic sectional view structure of the present invention;

[0026] Figure 4 is a schematic position structure diagram of the support mechanism and the load-relieving mechanism in the present invention;

[0027] Figure 5 is a schematic structure diagram of the load-relieving mechanism in the present invention;

[0028] Figure 6 is a schematic structure diagram of the upper support member in the present invention;

[0029] Figure 7 is a schematic structure diagram of the outer support member in the present invention;

[0030] Figure 8 is the present invention Figure 3 an enlarged schematic structure diagram of the structure at position A in;

[0031] Figure 9 is the present invention Figure 3 an enlarged schematic structure diagram of the structure at position B in;

[0032] Figure 10 is the present invention Figure 3 an enlarged schematic structure diagram of the structure at position C in;

[0033] Figure 11 is the present invention Figure 3 an enlarged schematic structure diagram of the structure at position D in;

[0034] In the figure:

[0035] 100, anti-slip rubber layer; 200, inner bladder; 300, center of gravity seat; 400, inflating member; 500, jacking mechanism; 600, load-relieving mechanism; 700, support mechanism; 800, inflating seat; 900, air pressure detecting member;

[0036] 410, protective box; 420, charging port; 430, wire box; 440, air pump; 450, intake pipe; 460, exhaust pipe;

[0037] 510, First air duct; 520, Second air duct; 530, Third air duct; 540, First exhaust valve;

[0038] 610, Protective plate; 620, Support column; 630, Equalizing ring; 640, Load-bearing plate; 650, Reinforcing rib; 660, First telescopic tube; 670, Second telescopic tube;

[0039] 710, Third air duct; 720, Upper support member; 730, Outer support member; 740, Air guide block;

[0040] 721, First return spring; 722, Piston plate; 723, Fourth air duct; 724, Storage groove;

[0041] 731, Elastic sealing plate; 732, Wear-resistant part; 733, Connecting strip; 734, Contact strip. Detailed implementation mode

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0043] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0044] As Figures 1 to 11 shown, an automatically inflatable and deflatable PVC yoga ball with Bluetooth support includes an anti-slip rubber layer 100. An inner bladder 200 is provided inside the anti-slip rubber layer 100. A center of gravity seat 300 is provided at the bottom end of the inner wall of the inner bladder 200. An inflation member 400 is installed on the center of gravity seat 300. A jacking mechanism 500 is provided on one side of the inflation member 400 at the top end of the center of gravity seat 300. A force-relieving mechanism 600 is installed on the outer wall of the jacking mechanism 500. A support mechanism 700 is connected to the top end of the force-relieving mechanism 600. An inflation seat 800 is provided at the top end of the inner wall of the inner bladder 200. A pressure detection member 900 is assembled on the outer wall of the inflation member 400;

[0045] The inflation member 400 includes a protective box 410 assembled on the top end of the center of gravity seat 300. A charging port 420 is provided at the bottom end of the protective box 410. A wire box 430 is installed on one side of the protective box 410. An air pump 440 is connected to the side of the wire box 430 away from the protective box 410. An air inlet pipe 450 is provided at the input end of the air pump 440. An exhaust pipe 460 is installed at the output end of the air pump 440;

[0046] The inside of the center of gravity seat 300 is hollow. The input end of the center of gravity seat 300 is communicated with the exhaust pipe 460. The output end of the center of gravity seat 300 is respectively communicated with the input ends of the jacking mechanism 500 and the support mechanism 700:

[0047] Inside the protective box 410, there is a storage battery and a Bluetooth controller. The storage battery is electrically connected to the air pump 440 through a wire, and the air pressure detection component 900 is electrically connected to the storage battery through a wire:

[0048] The above structural design facilitates the staff to control the power supply and cut-off of the storage battery to the air pump 440 through the Bluetooth controller. At the same time, the air pressure detection component 900 is used to detect the pressure inside the inner tank 200. When the pressure reaches the threshold value, the storage battery is controlled to stop supplying power to the air pump 440, so that the user can inflate the yoga ball conveniently and quickly, and the inflation is controllable;

[0049] Please refer to with emphasis Figure 3 , because there are many assembled components on the center of gravity seat 300, the overall center of gravity of the yoga ball moves downward, thereby increasing the stability of the yoga ball and reducing the probability of the user slipping sideways when using the yoga ball. Moreover, when the yoga ball is idle, it is easy to roll, and the downward movement of the center of gravity can also reduce the occurrence of the above problems.

[0050] Please refer to with emphasis Figure 3 and Figure 10 As shown in, the jacking mechanism 500 includes a first air duct 510 connected to the output end of the center of gravity seat 300. The inner wall of the first air duct 510 is provided with a second air duct 520, the inner wall of the second air duct 520 is provided with a third air duct 530, and a first exhaust valve 540 is installed on the outer wall of the third air duct 530;

[0051] The bottom end of the inflation seat 800 is provided with a first contact block matching the first exhaust valve 540, and an inflation hole is provided on one side of the bottom end of the inflation seat 800 where the air guide block is located;

[0052] The above structural design facilitates that when the air pump 440 transports gas to the inside of the center of gravity seat 300 through the exhaust pipe 460, it is transmitted to the inside of the first air duct 510 through the center of gravity seat 300, and then enters the inside of the second air duct 520 and the third air duct 530 in sequence. When the gas fills the inside of the first air duct 510, the second air duct 520 and the third air duct 530, and continues to be injected, the gas pushes the third air duct 530 and the second air duct 520 upward in sequence until the top end of the third air duct 530 is inserted into the inside of the inflation seat 800, so that the first exhaust valve 540 contacts the first contact block, and the gas inside the third air duct 530 is injected into the inside of the inflation seat 800 through the first exhaust valve 540, and then enters the inside of the inner tank 200 through the inflation hole.

[0053] Please refer to with emphasis Figure 3 、 Figure 6 and Figure 7As shown, the support mechanism 700 includes a third air guide tube 710 that is in contact with the inner wall of the liner 200, an upper support member 720 is installed inside the third air guide tube 710, an outer support member 730 is installed on the outer wall of the upper support member 720, and an air guide block 740 is connected to the top of the outer support member 730; the upper support member 720 includes a first return spring 721 installed at the bottom end of the inner wall of the third air guide tube 710, a piston plate 722 is installed on the top of the first return spring 721, a fourth air guide tube 723 is fixedly installed on the top of the piston plate 722, and a storage groove 724 is opened on the outer wall of the fourth air guide tube 723; the outer support member 730 includes a first return spring 721 installed at the bottom end of the inner wall of the third air guide tube 710, a piston plate 722 is installed on the top of the first return spring 721, and a fourth air guide tube 723 is fixedly installed on the top of the piston plate 722, and a storage groove 724 is opened on the outer wall of the fourth air guide tube 723; The inner wall of the fourth air guide tube 723 is fitted with an elastic sealing plate 731, and the outer wall of the elastic sealing plate 731 is provided with a wear-resistant portion 732, and the outer wall of the wear-resistant portion 732 is equipped with a connecting strip 733, and a side of the connecting strip 733 away from the wear-resistant portion 732 is provided with a conflict strip 734; the bottom end of the third air guide tube 710 is connected to the output end of the center of gravity seat 300, and the inner wall of the fourth air guide tube 723 is provided with a sliding groove that penetrates to its outer wall, and the sliding groove is connected to the storage groove 724, and the outer wall of the storage groove 724 is fitted with the inner wall of the conflict strip 734, and the outer walls of the storage groove 724 and the conflict strip 734 are located on the same arc surface, and the bottom end of the conflict strip 734 is provided with a guide slope;

[0054] The above-mentioned structural arrangement enables that when the center of gravity seat 300 injects gas into the third air guide tube 710, the fourth air guide tube 723 is pushed upward like the third air guide tube 710, and when the air guide block 740 is inserted into the inflation seat 800, since the top end of the air guide block 740 is equipped with a second exhaust valve, and the bottom end of the inflation seat 800 is provided with a second abutment block matching the second exhaust valve, the air guide block 740 also inflates the inner liner 200 through the inflation hole of the inflation seat 800;

[0055] The air guide block 740 moves upward while driving the first telescopic tube 660 to move. As the internal pressure of the inner liner 200 gradually increases, the pressure inside the fourth air guide tube 723 also gradually increases, so that the elastic sealing plate 731 deforms and moves toward the sliding groove. The movement of the elastic sealing plate 731 drives the connecting strip 733 and the abutting strip 734 to move. When the inflation is completed, the wear-resistant portion 732 of the outer wall of the elastic sealing plate 731 fits with the inner wall of the fourth air guide tube 723, and the outer wall of the abutting strip 734 fits closely with the inner wall of the inner liner 200.

[0056] The above structure reduces the longitudinal displacement between the fourth air duct 723 and the elastic sealing plate 731 by the larger outer wall of the wear-resistant part 732 and the friction force, and increases the supporting area of the support mechanism 700 on the upper part of the inner liner 200 by the resistance strip 734, thereby enhancing the supporting effect.

[0057] Please refer to Figure 4 and Figure 5As shown in the figure, the force relief mechanism 600 includes a protective plate 610 assembled at the top end of the protective box 410. A support column 620 is fixedly assembled at a fixed point of the protective plate 610. A force equalizing ring 630 is provided at the top end of the support column 620. A load-bearing plate 640 is connected to the top end of the force equalizing ring 630. A reinforcing rib 650 is fixedly assembled at the top end of the load-bearing plate 640. A first telescopic tube 660 is provided at the top end of the reinforcing rib 650. A second telescopic tube 670 is installed on one side of the first telescopic tube 660 at the top end of the reinforcing rib 650. The force equalizing ring 630 is located at the central position between the first telescopic tube 660 and the second telescopic tube 670. The number of support columns 620 is six groups. The load-bearing plate 640 is assembled on the outer wall top end of the first air duct 510. The first telescopic tube 660 is rotatably connected to the reinforcing rib 650 through a rotating shaft. The second telescopic tube 670 is rotatably connected to the reinforcing rib 650 through a rotating shaft. Both the first telescopic tube 660 and the second telescopic tube 670 are rotatably connected to the support mechanism 700 through a rotating shaft;

[0058] When the user sits on the yoga ball, the pressure is transmitted to the jacking mechanism 500 and the support mechanism 700 through the inflatable seat 800. After part of the pressure received by the support mechanism 700 is consumed by the outer support member 730, part of it is transmitted to the center of gravity seat 300, and part of it is transmitted to the contact position between the third air duct 710 and the fourth air duct 723. Since the second telescopic tube 670 is assembled on the outer wall near the top of the third air duct 710, part of the force is transmitted to the reinforcing rib 650 through the second telescopic tube 670, and the other part is transmitted to the first telescopic tube 660 through the air guide block 740. Thus, it is also transmitted to the reinforcing rib 650 through the first telescopic tube 660, and then is sequentially transmitted to the load-bearing plate 640, the force equalizing ring 630, and the support column 620 through the reinforcing rib 650, and finally transmitted to the protective plate 610;

[0059] Through the above-mentioned multiple force relief structures, when the user sits on it, it will not sink quickly, but will have a slow descent, reducing the user's sense of weightlessness. Moreover, through the jacking mechanism 500, the force relief mechanism 600 and the support mechanism 700, the overall structure of the yoga ball is made more firm, reducing the probability of bursting.

[0060] Considering that the self-weight of the yoga ball should not be too large, the air pump 440 and the battery in the figure can be set in different sizes and models according to the actual situation, and their internal structures should preferably use materials with good elasticity and light weight to reduce the increase in the weight of the yoga ball.

[0061] The above are only the preferred embodiments of the present invention. The parts not described in the present invention can be implemented by adopting or referring to the existing technologies. Of course, the above description is not a limitation to the present invention, and the present invention is not limited to the above examples. The changes, modifications, additions or substitutions made by those skilled in the art within the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. An automatically inflatable and deflatable PVC yoga ball with Bluetooth support, comprising an anti-slip rubber layer (100), characterized in that: Inside the anti-slip rubber layer (100) is provided with an inner bladder (200). At the bottom end of the inner wall of the inner bladder (200) is provided a center of gravity seat (300). An inflating member (400) is installed on the center of gravity seat (300). On one side of the inflating member (400) at the top end of the center of gravity seat (300) is provided a jacking mechanism (500). An unloading mechanism (600) is installed on the outer wall of the jacking mechanism (500). The top end of the unloading mechanism (600) is connected to a supporting mechanism (700). At the top end of the inner wall of the inner bladder (200) is provided an inflating seat (800). An air pressure detecting member (900) is assembled on the outer wall of the inflating member (400); The inflating member (400) includes a protective box (410) assembled on the top end of the center of gravity seat (300). At the bottom end of the protective box (410) is provided a charging port (420). On one side of the protective box (410) is installed a wire box (430). Connected to one side of the wire box (430) away from the protective box (410) is an air pump (440). At the input end of the air pump (440) is provided an air inlet pipe (450). At the output end of the air pump (440) is installed an exhaust pipe (460); The inside of the center of gravity seat (300) is hollow. The input end of the center of gravity seat (300) is communicated with the exhaust pipe (460). The output end of the center of gravity seat (300) is respectively communicated with the input ends of the jacking mechanism (500) and the supporting mechanism (700): Inside the protective box (410) are provided a storage battery and a Bluetooth controller. The storage battery is electrically connected to the air pump (440) through a wire. The air pressure detecting member (900) is electrically connected to the storage battery through a wire.

2. The automatically inflatable and deflatable PVC yoga ball with Bluetooth support according to claim 1, characterized in that: The jacking mechanism (500) includes a first air duct (510) connected to the output end of the center of gravity seat (300). Inside the inner wall of the first air duct (510) is provided a second air duct (520). Inside the inner wall of the second air duct (520) is provided a third air duct (530). A first exhaust valve (540) is installed on the outer wall of the third air duct (530).

3. The automatically inflatable and deflatable PVC yoga ball with Bluetooth support according to claim 2, wherein: The unloading mechanism (600) includes a protective plate (610) assembled on the top end of the protective box (410). At the fixed point of the protective plate (610) is fixedly assembled a support column (620). At the top end of the support column (620) is provided an equalizing ring (630). The top end of the equalizing ring (630) is connected to a load-bearing disc (640). At the top end of the load-bearing disc (640) is fixedly assembled a reinforcing rib (650). At the top end of the reinforcing rib (650) is provided a first telescopic tube (660). On one side of the first telescopic tube (660) at the top end of the reinforcing rib (650) is installed a second telescopic tube (670).

4. The automatically inflatable and deflatable PVC yoga ball with Bluetooth support according to claim 3, characterized in that: The force equalizing ring (630) is located at the center of the first telescopic tube (660) and the second telescopic tube (670); the number of the support columns (620) is six; the load-bearing plate (640) is mounted on the top of the outer wall of the first air guide tube (510); the first telescopic tube (660) is rotatably connected to the reinforcing rib (650) via a rotating shaft; the second telescopic tube (670) is rotatably connected to the reinforcing rib (650) via a rotating shaft; and the first telescopic tube (660) and the second telescopic tube (670) are both rotatably connected to the support mechanism (700) via a rotating shaft.

5. The automatically inflatable and deflatable PVC yoga ball with Bluetooth support according to claim 1, characterized in that: The support mechanism (700) comprises a third air guide tube (710) which is in contact with the inner wall of the liner (200); an upper support member (720) is installed inside the third air guide tube (710); an outer support member (730) is installed on the outer wall of the upper support member (720); and an air guide block (740) is connected to the top end of the outer support member (730).

6. The automatically inflatable and deflatable PVC yoga ball with Bluetooth support according to claim 5, characterized in that: The upper support member (720) includes a first return spring (721) mounted on the bottom end of the inner wall of the third air guide tube (710); a piston plate (722) is mounted on the top end of the first return spring (721); a fourth air guide tube (723) is fixedly mounted on the top end of the piston plate (722); and a receiving groove (724) is provided on the outer wall of the fourth air guide tube (723).

7. The automatically inflatable and deflatable PVC yoga ball with Bluetooth support according to claim 6, characterized in that: The outer support member (730) comprises an elastic sealing plate (731) which is in contact with the inner wall of the fourth air guide tube (723); the outer wall of the elastic sealing plate (731) is provided with a wear-resistant portion (732); the outer wall of the wear-resistant portion (732) is equipped with a connecting strip (733); and a side of the connecting strip (733) away from the wear-resistant portion (732) is provided with a resistance strip (734).

8. The automatically inflatable and deflatable PVC yoga ball with Bluetooth support according to claim 7, characterized in that: The bottom end of the third air guide tube (710) is connected to the output end of the center of gravity seat (300); the inner wall of the fourth air guide tube (723) is provided with a sliding groove penetrating to its outer wall; the sliding groove is connected to the receiving groove (724); the outer wall of the receiving groove (724) is in contact with the inner wall of the interference strip (734); the outer walls of the receiving groove (724) and the interference strip (734) are located on the same arc surface; the bottom end of the interference strip (734) is provided with a guide slope.

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