Suction cup device and fitness machine

Abstract

A suction cup device comprises a base and a suction cup arranged below the base, characterized in that the base is provided with an operating member capable of acting on the edge of the suction cup to make the edge of the suction cup separate from the suction surface, so that the suction cup can be more conveniently released from the suction state.

Description

Technical Field

[0001] This utility model relates to fitness equipment, and more particularly to a suction cup device and a fitness machine. Background Technology

[0002] Chinese patent document CN219983830U discloses a sit-up assist device, including a base, a suction cup on the bottom surface of the base, a receiving groove on the upper surface of the base, a movable rod in the receiving groove, a connecting rod between the bottom of the movable rod and the suction cup, and an adjustable fixing rod at the upper end of the movable rod. This sit-up assist device simplifies the use of traditional assist devices by simply pulling the movable rod and simultaneously pulling the suction cup via the connecting rod to vacuum-fix the suction cup. After completion, the movable rod is returned to its storage groove, making storage and packaging convenient.

[0003] In the above solution, the suction cup can be fixed by pulling the movable rod and simultaneously pulling the suction cup through the connecting rod. This facilitates the fixation of the sit-up assist device. However, during use, the suction cup is often attached to a smooth surface or tile. When the base covers the suction cup or only a small edge of the suction cup protrudes from the base, it requires considerable force or moving the suction cup into the tile grout to allow the suction cup to connect with the atmosphere and release its attachment. Therefore, when using the sit-up assist device in the above solution, it is not possible to quickly and easily release the suction cup from its attachment state. Utility Model Content

[0004] The purpose of this invention is to provide a suction cup device that makes it easier to release the suction cup from its adsorption state.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A suction cup device includes a base and a suction cup disposed below the base, characterized in that: an operating component is provided on the base, the operating component can act on the edge of the suction cup to disengage the edge of the suction cup from the suction surface, thereby releasing the suction cup from its adsorption state.

[0007] By adopting the above solution, when the suction cup needs to be released from its adsorption state, the operating component can be applied to the edge of the suction cup to detach the edge from the adsorption surface and allow its interior to connect with the atmosphere, thereby releasing the suction cup from its adsorption state. Compared to directly touching the suction cup with your hand, or when the suction cup is covered by the base or only a small edge of the suction cup is exposed on the base, this method makes it more convenient to release the suction cup from its adsorption state.

[0008] The operating element can be operated to contact the edge of the suction cup, causing the edge of the suction cup to detach from the suction surface, thereby releasing the suction cup from its adsorption state.

[0009] By adopting the above scheme, the operating component can be operated to contact the edge of the suction cup. In this way, when it is necessary to release the suction cup from its adsorption state, if the base covers the suction cup or only a small edge of the suction cup is exposed above the base, the operating component can be operated to contact the edge of the suction cup to quickly release the suction cup from its adsorption state.

[0010] The operating element can be operated to squeeze the edge of the suction cup, causing the edge of the suction cup to detach from the suction surface, thereby releasing the suction cup from its adsorption state.

[0011] By adopting the above solution, when the base covers the suction cup or only a small edge of the suction cup protrudes from the base, the operating component can be operated to squeeze the edge of the suction cup, causing the edge of the suction cup to detach from the adsorption surface, thereby achieving the purpose of quickly releasing the suction cup from its adsorption state.

[0012] The operating component is rotatably mounted on the base. The operating component can be rotated to press the edge of the suction cup, causing the edge of the suction cup to detach from the suction surface, thereby releasing the suction cup from its adsorption state.

[0013] By adopting the above solution, when the base covers the suction cup or only a small edge of the suction cup protrudes from the base, the operating component can be rotated to squeeze the edge of the suction cup, causing the edge of the suction cup to detach from the suction surface, thereby releasing the suction cup from its suction state and achieving the purpose of quickly releasing the suction cup from its suction state.

[0014] The operating component includes a squeezing part and a pressing part. The top or side surface of the base is provided with a clearance hole for the pressing part to pass through. By pressing the pressing part, the operating component can be rotated to the squeezing part squeezing the edge of the suction cup, so that the edge of the suction cup is separated from the adsorption surface, thereby releasing the suction cup from its adsorption state.

[0015] By adopting the above solution, a clearance hole is provided on the top or side of the base for the pressing part to pass through, which facilitates the installation of the operating part. At the same time, by pressing the pressing part, the operating part can be rotated to the squeezing part to squeeze the edge of the suction cup, so that the edge of the suction cup is separated from the suction surface, thereby releasing the suction cup from its suction state. This makes the operation of releasing the suction cup from its suction state more convenient.

[0016] It includes a vertically extending pressing section, a horizontally extending transverse section, and a vertically extending squeezing section. The lower end of the pressing section is connected to the first end of the transverse section, the upper end of the squeezing section is connected to the bottom of the transverse section, and the second end of the transverse section is rotatably connected to the base via a pin.

[0017] By adopting the above scheme, the lower end of the pressing section is connected to the first end of the horizontal section, the upper end of the squeezing section is connected to the bottom of the horizontal section, and the second end of the horizontal section is rotatably connected to the base through a pin. This makes the structure more reasonable and the operation more convenient during use.

[0018] The pressing section and the inner and outer sides of the transverse section are transitioned by the first and second arc surfaces, respectively. The side of the squeezing section facing away from the suction cup is an arc surface, and the end face of the second end of the transverse section is a third arc surface.

[0019] By adopting the above scheme, the inner and outer sides of the pressing section and the transverse section are respectively transitioned by the first and second arc surfaces, and the end face of the second end of the transverse section is the third arc surface. The transition of the first, second and third arc surfaces can make the structure more reasonable and increase the stability of the operating parts during manufacturing to prevent deformation. In addition, the side of the pressing section facing away from the suction cup is an arc surface, which can avoid contact with the suction surface during operation.

[0020] The operating element is movably disposed on the base between a first position and a second position. When the operating element is operated to the first position, the operating element can squeeze the edge of the suction cup to disengage the edge of the suction cup from the adsorption surface. When the operating element is operated to the second position, the operating element moves away from the edge of the suction cup.

[0021] By adopting the above solution, the operating component is movably mounted on the base between a first position and a second position. When the operating component is moved to the first position, it can press the edge of the suction cup to detach it from the suction surface, making the process of releasing the suction cup from its suction state more convenient. When the operating component is moved to the second position, it moves away from the edge of the suction cup, thus preventing it from touching the edge of the suction cup during use.

[0022] The device also includes an elastic element that drives the operating element to move to the second position.

[0023] By adopting the above solution, the operating component is driven to move to the second position using an elastic element. In this way, the operating component can be kept away from the suction cup under the action of the elastic element, preventing it from hitting the edge of the suction cup during use. The setting of the elastic element also makes it more convenient for users to operate.

[0024] The operating element includes an insertion part with an insertion tip for insertion between the edge of the suction cup and the adsorption surface.

[0025] By adopting the above solution, an insertion tip is formed on the insertion part so that it can be inserted between the edge of the suction cup and the adsorption surface, which makes the operation more convenient when it is necessary to release the suction cup from the adsorption state.

[0026] The base is provided with a screw hole, and the operating member is formed with an external thread that mates with the screw hole. By rotating the operating member, the operating member can be moved between a first position and a second position.

[0027] By adopting the above scheme, a screw hole is provided on the base, and the operating part is formed with an external thread that mates with the screw hole. In this way, the operating part can be moved between the first position and the second position by rotating the operating part. This facilitates operation, and the mating screw hole and thread also make the operating part more stable during use.

[0028] It also includes a pull rod and a swinging component. One end of the pull rod is connected to the top of the suction cup, and the other end passes through the base and is rotatably connected to the swinging component. The swinging component can rotate between a first state and a second state. In use, when the swinging component rotates to the first state, the swinging component can pull the pull rod upward to increase the suction force of the suction cup. When the swinging component rotates to the second state, the swinging component releases the pull rod, causing the pull rod to move downward to reduce the suction force of the suction cup.

[0029] By adopting the above scheme, the other end of the pull rod is rotatably connected to the swinging component, and the swinging component can rotate between the first state and the second state. In use, when the swinging component rotates to the first state, the swinging component can pull the pull rod upward to increase the suction force of the suction cup. When the swinging component rotates to the second state, the swinging component releases the pull rod, causing the pull rod to move downward to reduce the suction force of the suction cup. This makes it more convenient to operate the suction cup when increasing or decreasing the suction force.

[0030] It also includes a pull rod and a swinging component. One end of the pull rod is connected to the top of the suction cup, and the other end passes through the base and is rotatably connected to the swinging component. The swinging component can rotate between a first state and a second state. In use, when the swinging component rotates to the first state, it can pull the pull rod upward to increase the suction force of the suction cup. When the swinging component rotates to the second state, it releases the pull rod, causing the pull rod to move downward to reduce the suction force of the suction cup. When the swinging component rotates to the second state, it can drive the operating component to act on the edge of the suction cup to release the suction cup from its suction state.

[0031] By adopting the above scheme, when the swinging component rotates to the second state, the operating component can be driven to rotate to squeeze the edge of the suction cup so that the suction cup can be connected to the atmosphere to release the suction state. This makes the operation of releasing the suction cup from the suction state more convenient.

[0032] The swinging component is a swinging rod, the lower end of which is rotatably connected to the pull rod, and the upper end of which is connected to a crossbar. The swinging rod and the crossbar form a hook frame for assisting sit-ups. The swinging rod is upright in the first state and folded together on the base in the second state.

[0033] By adopting the above solution, a crossbar is connected to the upper end of the swing rod, and the swing rod and the crossbar can form a hook frame to assist in sit-ups. This can increase its practicality. When the swing rod is in the first state, it stands up, which makes it convenient for users to do sit-ups. When the swing rod is in the second state, it is folded up on the base, which makes it convenient to store the device and does not take up too much space.

[0034] In use, the base completely covers the suction cup from the top, so that the edge of the suction cup cannot be operated directly and can only be operated through the operating component.

[0035] By adopting the above solution, the base completely covers the suction cup from the top, which can prevent accidental contact with the suction cup during use, thus preventing the suction cup from weakening its adsorption effect. The edge of the suction cup cannot be directly operated and can only be operated through the operating component, which further increases the function of the operating component.

[0036] A fitness device that uses a suction cup device to fix the fitness device to an adsorption surface.

[0037] By adopting the above solution, the fitness equipment can be fixed to the suction surface using a suction cup device, which can make the fitness equipment more stably fixed to the suction surface. In addition, the addition of different fitness equipment to the suction cup device also increases the practicality of the suction cup device.

[0038] The fitness equipment includes a table tennis trainer, a boxing ball trainer, a football trainer, a sit-up assist device, or a massager.

[0039] By adopting the above solution, different fitness equipment can be installed on the suction cup device according to different needs, which greatly increases the practicality of the suction cup device. Attached Figure Description

[0040] Figure 1 This is a three-dimensional view of the suction cup device.

[0041] Figure 2 This is a three-dimensional view of the suction cup device from another perspective.

[0042] Figure 3 This is a perspective view of Example 1.

[0043] Figure 4 This is a perspective view of Example 1 from another angle.

[0044] Figure 5 This is an exploded view of Example 1.

[0045] Figure 6 This is an exploded view from another perspective of Example 1.

[0046] Figure 7 This is a front view of Example 1.

[0047] Figure 8 for Figure 7 Sectional view along the AA direction.

[0048] Figure 9 This is a perspective view of the folded state in Example 1.

[0049] Figure 10 This is a front view of the folded state in Embodiment 1.

[0050] Figure 11 for Figure 10 Sectional view along the BB direction.

[0051] Figure 12 3D view of the operating component

[0052] Figure 13 This is a perspective view of Example 2.

[0053] Figure 14 This is a perspective view of another embodiment of the second example.

[0054] Figure 15 This is a front view of part of Embodiment 2.

[0055] Figure 16 for Figure 15 Sectional view along the CC direction.

[0056] Figure 17 This is a perspective view of Example 3.

[0057] Figure 18 This is a perspective view of another embodiment three.

[0058] Figure 19 This is a front view of part of Embodiment 3.

[0059] Figure 20 for Figure 19 Sectional view along the DD direction.

[0060] Figure 21 This is a perspective view of Example 4.

[0061] Figure 22 This is a perspective view of another embodiment four.

[0062] Figure 23 This is a front view of part of Embodiment 4.

[0063] Figure 24 for Figure 23 Sectional view along the EE direction.

[0064] Figure 25 This is a 3D diagram of a football training device.

[0065] Figure 26 This is a 3D diagram of a massager.

[0066] Figure 27 This is a stereoscopic view of the massager from another perspective.

[0067] Figure 28 This is a front view of a sit-up assist device.

[0068] Figure 29This is a 3D diagram of a boxing ball training device. Detailed Implementation

[0069] Reference Figure 1 and Figure 2 As shown, the suction cup device provided by this patent includes a base 1, a swinging member 2, an operating member 3, a suction cup 4, a pull rod 41, and a second pin 42. The suction cup 4 is located at the bottom of the base 1, and the base 1 completely covers the suction cup 4 from the top. One end of the pull rod 41 is connected to the middle of the top of the suction cup 4, and the other end passes upward through the base 1 and is rotatably connected to the swinging member 2 through the second pin 42. The swinging member 2 can rotate between an upright state and a folded state. When the swinging member 2 rotates to the upright state, it drives the pull rod to move upward, thereby increasing the vacuum inside the suction cup 4, so that the suction cup 4 can be firmly adsorbed onto tiles and other adsorption materials. On the surface, when the swinging member 2 rotates to the folded state close to the top of the base 1, the swinging member 2 causes the pull rod 41 to move downward, reducing the vacuum inside the suction cup 4, making it easier to remove the suction cup 4. However, removing the suction cup 4 is still somewhat difficult and requires the operation of the operating member 3. The operating member 3 is rotatably mounted on the base 1 through the first pin 31. The top surface of the base 1 has a clearance hole 11 for the upper end of the operating member 3 to pass through. When the upper end of the operating member 3 is pressed, the operating member 3 rotates so that its lower end can squeeze the edge of the suction cup 4, causing the edge of the suction cup 4 to detach from the adsorption surface, thereby releasing the adsorption state of the suction cup 4.

[0070] Example 1, refer to Figures 3 to 12 The suction cup device and fitness equipment shown include a base 11, an operating component 13, and a suction cup 14 disposed below the base 11.

[0071] The operating component 13 is rotatably mounted on the base 11 via a first pin 133. The operating component 13 includes a vertically extending pressing section 134, a horizontally extending transverse section 135, and a vertically extending squeezing section 136. The lower end of the pressing section 134 is connected to the first end of the transverse section 135, and the upper end of the squeezing section 136 is connected to the bottom of the transverse section 135. The second end of the transverse section 135 is rotatably connected to the base 11 via the first pin 133. The inner and outer sides of the pressing section 134 and the transverse section 135 are transitioned by a first arc surface r1 and a second arc surface r2, respectively. The radius of r1 is approximately 8.5 mm, and the radius of r2 is approximately 17 mm. The side of the squeezing section 136 facing away from the suction cup 14 is an arc surface r3 with a radius of approximately 12.7 mm. The end face of the second end of the transverse section 135 is... The third arc surface r4 has a radius of approximately 10.6 mm. The top of the pressing section 134 is the pressing part 131, and the end of the squeezing section 136 near the suction cup 14 is the squeezing part 132. The base 11 is provided with a clearance hole 113 for the pressing part 131 to pass through. When the suction cup 14 is attached to the suction surface, the pressing part 131 can pass through the clearance hole 113 on the base 11, making it convenient for the user to operate. During use, the operating member 13 can move between the first position and the second position. When the operating member 13 is moved to the first position, the operating member 13 can squeeze the edge of the suction cup 14 to make the suction cup 14 detach from the suction surface and release the suction cup 14 from the suction state. When the operating member 13 is moved to the second position, the operating member 13 moves away from the edge of the suction cup 14 to prevent the operating member 13 from accidentally touching the edge of the suction cup 14.

[0072] The suction cup 14 is positioned below the base 11 via a pull rod 141. The outer edge of the base 11 is larger than the outer edge of the suction cup 14. In use, the base 11 completely covers the suction cup 14 from the top, preventing the edge of the suction cup 14 from being directly operated and allowing operation only through the operating component 13. This prevents the suction cup 14 from being interfered with by external objects during use and further emphasizes the function of the operating component 13. The pull rod 141 is connected to a fixing part 145, which allows operation through a deformation opening 144 on the suction cup 14 that is adapted to the fixing part 145. The fixing part 145 is inserted into the deformation opening 144 for fixation, or the pull rod 141 is fixed to the suction cup 14 by adhesive such as glue or other fixing methods. The other end of the pull rod 141 passes through the clearance hole 114 on the base 11 that is adapted to the pull rod 141, and is rotatably connected to the swing member 12 by the second pin 142. One end of the swing member 12 is rotatably mounted on the base 11 by the elastic button 121. This is prior art and will not be described in detail here. The elastic button 121 can facilitate the swing member. The installation and removal of component 12: The swinging component 12 is a swinging rod, and the upper end of the swinging rod is connected to a crossbar. The swinging rod and the crossbar constitute the hook bracket 15 for assisting sit-ups, which can increase its practicality. Multiple adjustment holes 122 are also provided on the swinging component 12, spaced apart along its extension direction. The length of the hook bracket 15 can be adjusted according to different needs through the multiple adjustment holes 122. When the suction cup 14 is attached to the suction surface, the hook bracket 15 can be used to perform sit-ups. The swinging component 12... It can rotate between the first state and the second state. When in use, when the swing member 12 rotates to the first state, the swing member 12 can pull the lever 141 upward to increase the suction force of the suction cup 14. When the swing member 12 rotates to the second state, the swing member 12 releases the lever 141, causing the lever 141 to move downward to reduce the suction force of the suction cup 14. An elastic member 143 is also provided between the suction cup 14 and the base 11. The elastic member 143 can further increase the suction force of the suction cup 14 during use, making it more firmly fixed.

[0073] The base 11 has two symmetrical side plates 111 and a connecting plate 112 connecting the two side plates 111. The swing member 12 is located between the two side plates 111 to prevent the swing member 12 from swaying left and right during use. The connecting plate 112 can prevent the swing member 12 from swinging excessively. The two side plates 111 and the connecting plate 112 form a groove on the base 11 to guide the folding direction of the swing member 12 and facilitate the folding of the swing member 12, making it easy to store.

[0074] The base 11 has hook grooves 16 extending through the top and sides on opposite sides. The bottom of the base 11 also has two latching grooves 17 located on both sides of the hook grooves 16 and connected to the hook grooves 16. Each latching groove 17 has a latching member 171, which latches in the latching groove 17. Each latching member 171 has an elastic latch 172. The base 11 has a latching part 173 that cooperates with the elastic latch 172. The two ends of the hanging rod 174 are clamped between the latching member 171 and the base 11. The opposite sides of the two latching members 171 have protruding protrusions 175. The cover 176 has arc-shaped holes 177 on both sides. The protrusions 175 are embedded in the arc-shaped holes 177, so that the cover 176 can be opened or closed under the guidance of the protrusions 175 and the arc-shaped holes 177.

[0075] In use, by turning the swing member 12 to a first state perpendicular to the adsorption surface, the suction cup 14 receives a downward force through the pull rod 141 connected to the swing member 12, allowing the suction cup 14 to adhere to the adsorption surface. At this time, the pressing part 131 of the operating member 13 passes through the clearance hole 113, and the squeezing part 132 does not touch the suction cup 14. When the swing member 12 is turned to a second state horizontal to the adsorption surface, the swing member 12 touches the pressing part 131, causing the operating member 13 to rotate, so that the squeezing part 132 acts on the edge of the suction cup 14, causing the edge of the suction cup 14 to detach from the adsorption surface, thereby releasing the adsorption state of the suction cup 14. Furthermore, a hook bracket 15 can be connected to the swing member 12, allowing the suction cup 14 to be fixed to the adsorption surface for sit-up exercises. The hanging rods 174 set on both sides of the base 11 can be connected with the tension rope to perform a pulling action.

[0076] Example 2, reference Figures 13 to 16 As shown, this embodiment is basically the same as embodiment one, except that the operating component 22 and the base 21 are different: specifically, the base 21 is also provided with an elastic support rod 211. One end of the elastic support rod 211 is inserted into the fixing groove 213 on the base 21, and the other end is connected to a ping-pong ball 212. After the suction cup 23 is fixed to the adsorption surface, training can be carried out by hitting the ping-pong ball 212. In embodiment two, the operating component 22 is set on the side of the base 21, and the operating component 21 is a bolt. The base 21 is provided with a screw hole 24 that matches the bolt. The operating component 21 can be rotated to move between the first position and the second position, so that the operating component 21 contacts and squeezes the edge of the suction cup 23 to make the edge of the suction cup 23 separate from the adsorption surface and release the adsorption state of the suction cup 23.

[0077] Example 3, reference Figures 17 to 20As shown, this embodiment is basically the same as embodiment two, except that the operating member 32 is different: the operating member 32 is set on the side of the base 31, and a clearance hole 311 is formed on the side for the pressing part 321 to pass through. The pressing part 321 and the squeezing part 322 are perpendicular to each other. Therefore, by simply bending the pressing part 321 downward, the squeezing part 322 can contact the edge of the suction cup 33, causing the edge of the suction cup 33 to detach from the adsorption surface, thereby releasing the adsorption state of the suction cup 33.

[0078] Example 4, Reference Figures 21 to 24 As shown, this embodiment is basically the same as embodiment two, except that the operating component 42 is different: the operating component 42 is disposed on the side of the base 41, and a limiting plate 411 is formed inside the base 41. A mounting groove 423 is formed on the operating component 42, and a spring 43 is disposed between the mounting groove 423 and the limiting plate 411. One end of the spring 43 abuts against the limiting plate 411, and the other end abuts against the mounting groove 423, so that the pressing part 421 of the operating component 42 passes through the base 41 and the pressing part 42. The operating member 42 has a matching clearance hole 412, and the pressing part 422 of the operating member 42 is formed with an insertion tip for insertion between the edge of the suction cup 43 and the adsorption surface. In use, simply pressing the pressing part 421 will cause the insertion tip of the pressing part 422 to act on the edge of the suction cup 43, causing the edge of the suction cup 43 to detach from the adsorption surface and release the adsorption state of the suction cup 43. When the pressing part 421 is released, the operating member 42 can return to the original state of the pressing part passing through the clearance hole 412 under the action of the spring 43.

[0079] Reference Figure 25 The elastic support rod 211 in Embodiment 2 can be replaced with... Figure 22 By replacing the elastic rope 51 with the ping-pong ball 212 and the soccer ball 52, kicking training can be performed after the suction cup device is fixed to the suction surface. Furthermore, this suction cup device... Figure 1 and Figure 2 The suction cup device is installed in the same position and operates on the same principle. It can be operated via the operating component 53 and the swing component 54.

[0080] Reference Figure 26 and Figure 27 The base 61 has two parallel side plates 611, and two rollers 612 are arranged between the side plates 611. Multiple protrusions 613 are formed on the rollers 612. Two suction cups 63 are arranged on the base 61 to ensure stability and prevent displacement or accidental fall-off during use. Each suction cup 63 is equipped with a corresponding operating part 62 so that the suction cup 63 can be quickly released from the suction state. When in use, after fixing the suction cup device to the suction surface, the protrusions 613 on the rollers 612 can be used to massage the body parts.

[0081] refer to Figure 28Two suction cup devices can be connected via a horizontal bar 71 and vertical bars 72 connected to both ends of the horizontal bar 71 to form a sit-up assist device. In use, the two suction cup devices are fixed to the suction surface, and the feet can be hooked onto the horizontal bar 71 for sit-up training. Furthermore, the suction cup devices are connected to... Figure 1 and Figure 2 The suction cup device is installed in the same position and operates on the same principle. It can be operated by the operating component 73 and the swing component 74.

[0082] refer to Figure 29 The suction cup device can fix the base 81 to the suction surface, and the base 81 is provided with a flexible support rod 82 for connecting the boxing ball 83. After the suction cup device is fixed, the boxing ball can be used for boxing training. Figure 1 and Figure 2 The suction cup device is installed in the same position and operates on the same principle. It can be operated by the operating component 84 and the swing component 85.

[0083] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model shall still fall within the scope of the patent of the present utility model.

Claims

1. A suction cup device comprising a base, a suction cup arranged below the base, characterized in that: An operating component is provided on the base, which can be applied to the edge of the suction cup to disengage the edge of the suction cup from the adsorption surface, thereby releasing the suction cup from its adsorption state.

2. A suction cup device according to claim 1, characterized in that: The operating element can be operated to contact the edge of the suction cup, causing the edge of the suction cup to detach from the suction surface, thereby releasing the suction cup from its adsorption state.

3. The suction cup device according to claim 1, characterized in that: The operating element can be operated to squeeze the edge of the suction cup, causing the edge of the suction cup to detach from the suction surface, thereby releasing the suction cup from its adsorption state.

4. A suction cup device according to claim 3, characterized in that: The operating component is rotatably mounted on the base. The operating component can be rotated to press the edge of the suction cup, causing the edge of the suction cup to detach from the suction surface, thereby releasing the suction cup from its adsorption state.

5. A suction cup device according to claim 4, characterized in that: The operating component includes a squeezing part and a pressing part. The top or side surface of the base is provided with a clearance hole for the pressing part to pass through. By pressing the pressing part, the operating component can be rotated to the squeezing part squeezing the edge of the suction cup, so that the edge of the suction cup is separated from the adsorption surface, thereby releasing the suction cup from its adsorption state.

6. A suction cup device according to claim 5, characterized in that: It includes a vertically extending pressing section, a horizontally extending transverse section, and a vertically extending squeezing section. The lower end of the pressing section is connected to the first end of the transverse section, the upper end of the squeezing section is connected to the bottom of the transverse section, and the second end of the transverse section is rotatably connected to the base via a pin.

7. A suction cup device according to claim 6, characterized in that: The pressing section and the inner and outer sides of the transverse section are transitioned by the first and second arc surfaces, respectively. The side of the squeezing section facing away from the suction cup is an arc surface, and the end face of the second end of the transverse section is a third arc surface.

8. A suction cup device according to claim 3, characterized in that: The operating element is movably disposed on the base between a first position and a second position. When the operating element is operated to the first position, the operating element can squeeze the edge of the suction cup to disengage the edge of the suction cup from the adsorption surface. When the operating element is operated to the second position, the operating element moves away from the edge of the suction cup.

9. A suction cup device according to claim 8, characterized in that: It also includes an elastic element that drives the operating element to move to the second position.

10. A suction cup device according to claim 8, characterized in that: The operating element includes an insertion part with an insertion tip for insertion between the edge of the suction cup and the adsorption surface.

11. A suction cup device according to claim 8, characterized in that: The base is provided with a screw hole, and the operating member is formed with an external thread that mates with the screw hole. By rotating the operating member, the operating member can be moved between a first position and a second position.

12. A suction cup device according to any one of claims 1 to 11, characterized in that: It also includes a pull rod and a swinging component. One end of the pull rod is connected to the top of the suction cup, and the other end passes through the base and is rotatably connected to the swinging component. The swinging component can rotate between a first state and a second state. In use, when the swinging component rotates to the first state, the swinging component can pull the pull rod upward to increase the suction force of the suction cup. When the swinging component rotates to the second state, the swinging component releases the pull rod, causing the pull rod to move downward to reduce the suction force of the suction cup.

13. A suction cup device according to any one of claims 1 to 7, characterized in that: It also includes a pull rod and a swinging component. One end of the pull rod is connected to the top of the suction cup, and the other end passes through the base and is rotatably connected to the swinging component. The swinging component can rotate between a first state and a second state. In use, when the swinging component rotates to the first state, it can pull the pull rod upward to increase the suction force of the suction cup. When the swinging component rotates to the second state, it releases the pull rod, causing the pull rod to move downward to reduce the suction force of the suction cup. When the swinging component rotates to the second state, it can drive the operating component to act on the edge of the suction cup to release the suction cup from its suction state.

14. A suction cup device according to claim 13, characterized in that: The swinging component is a swinging rod, the lower end of which is rotatably connected to the pull rod, and the upper end of which is connected to a crossbar. The swinging rod and the crossbar form a hook frame for assisting sit-ups. The swinging rod is upright in the first state and folded together on the base in the second state.

15. A suction cup device according to any one of claims 1 to 11, characterized in that: In use, the base completely covers the suction cup from the top, so that the edge of the suction cup cannot be operated directly and can only be operated through the operating component.

16. A fitness device, comprising a suction cup device as described in any one of claims 1 to 15, wherein the fitness device is fixed to an adsorption surface by the suction cup device.

17. An exercise apparatus as claimed in claim 16 wherein: The fitness equipment includes a table tennis trainer, a boxing ball trainer, a football trainer, a sit-up assist device, or a massager.

Images