Supporting seat linkage folding and unfolding mechanism and chest expander

Abstract

The embodiment of the utility model provides a supporting seat linkage folding and unfolding mechanism and a chest expander. The supporting seat linkage folding and unfolding mechanism comprises a bearing assembly, a supporting assembly and a connecting assembly. The bearing assembly comprises a stool body and a first rotating block, the first rotating block is used for being connected with the chest expander body, and the first rotating block is rotationally connected with one end of the stool body. The supporting assembly comprises a second rotating block and a supporting seat, and the second rotating block is rotationally connected with the other end of the stool body. One end of the connecting assembly is rotationally connected with the second rotating block through the first rotating shaft, and the other end of the connecting assembly is rotationally connected with the first rotating block through the second rotating shaft, so that the supporting seat can rotate relative to the stool body along with the rotation of the stool body relative to the chest expander main body when a user turns over the stool body; therefore, synchronous folding and synchronous unfolding of the stool body and the supporting seat are achieved, the storage speed and storage convenience of the linkage folding and unfolding mechanism of the supporting seat during unfolding are improved, and the folding speed and folding convenience of the linkage folding and unfolding mechanism during folding are improved.

Description

Technical Field

[0001] This disclosure relates to the field of fitness equipment technology, and in particular to a support base linkage folding and unfolding mechanism and a resistance band. Background Technology

[0002] With improved living conditions, people are paying more and more attention to their health. They exercise during their free time at work and in their daily lives. Those who can afford it go to the gym or buy fitness equipment to exercise at home. Among these, resistance bands are a relatively comprehensive training tool that is simple and convenient to use and is popular among the public.

[0003] In related technologies, resistance bands include a resistance band body and a seat. The seat is fixedly connected to the resistance band body. A damper and a resistance cable are installed on the resistance band body. Users lie or sit on the seat and pull the resistance cable to exercise. However, the seats in related technologies are large in size, which results in taking up too much space. Utility Model Content

[0004] This disclosure provides a support base linkage folding and unfolding mechanism and a tensioner to solve or alleviate one or more technical problems in the prior art.

[0005] As one aspect of this disclosure, this embodiment provides a support base linkage folding and unfolding mechanism, which includes:

[0006] The load-bearing component includes a stool body and a first rotating block for connection to the body of the tensioner, the first rotating block being rotatably connected to one end of the stool body;

[0007] The support assembly includes a second rotating block and a support base. The second rotating block is rotatably connected to the other end of the stool body, and the support base is rotatably connected to the second rotating block to enable the support base to switch between a folded state and an unfolded state.

[0008] A connecting component, one end of which is rotatably connected to a second rotating block via a first rotating shaft, and the other end of which is rotatably connected to the first rotating block via a second rotating shaft;

[0009] When the support base is in the unfolded state, the support base and the stool body are set at an angle; when the support base is in the folded state, the side of the support base is attached to the stool body.

[0010] In some embodiments, the stool body includes a first side plate, a second side plate, and a bottom plate. The first side plate and the second side plate are respectively disposed on two opposite edges of the bottom plate. The second rotating block is rotatably connected to the first side plate and the second side plate respectively through a third rotating shaft. The first rotating block is rotatably connected to the first side plate and the second side plate respectively through a fourth rotating shaft.

[0011] In some embodiments, the support base is located on the side of the base plate opposite to the first side plate; when the support base is in the unfolded state, the support base abuts against the surface of the base plate opposite to the first side plate.

[0012] In some embodiments, the support base includes a first end and a second end for abutting against the ground to provide support to the stool body, the first end being connected to a second rotating block; when the support base is in the unfolded state, the first end abuts against the surface of the base plate facing away from the first side plate.

[0013] In some embodiments, the base plate is provided with a through groove, and the second rotating block passes through the through groove and is connected to the support base.

[0014] In some embodiments, the second rotating block includes a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected and set at an included angle, the first connecting part is rotatably connected to the stool body, and the second connecting part is connected to the support base.

[0015] In some embodiments, the second pivot is located on the side of the fourth pivot facing the base plate, and the first pivot is located on the side of the third pivot facing the base plate.

[0016] In some embodiments, the first, second, third, and fourth rotating shafts are parallel.

[0017] In some embodiments, the connecting assembly includes a connecting rod, a first sleeve, and a second sleeve. The first sleeve is connected to one end of the connecting rod, and the second sleeve is connected to the other end of the connecting rod. The first sleeve is fitted onto a first rotating shaft, and the second sleeve is fitted onto a second rotating shaft.

[0018] As another aspect of the present disclosure, the present disclosure also provides a tensioner, which includes a tensioner body and a support base linkage folding and unfolding mechanism as described above, wherein a first rotating block is connected to the tensioner body.

[0019] With the support seat in the extended position, the stool and the main body of the resistance band are set at an angle.

[0020] With the support seat folded, the stool body fits snugly against the main body of the resistance band.

[0021] The embodiments disclosed herein have the following beneficial effects:

[0022] According to the technology disclosed herein, the support seat can be switched between an unfolded state and a folded state by means of a connecting component, one end of which is rotatably connected to the second rotating block and the other end of which is rotatably connected to the first rotating block. When the support seat is in the unfolded state, the stool is placed horizontally, the support seat and the stool are vertically positioned, and the end of the support seat away from the stool is supported on the ground to support the stool. When the support seat needs to be switched from the unfolded state to the folded state, the user needs to fold the stool so that the end of the stool adjacent to the second rotating block rotates around the end of the stool adjacent to the first rotating block, so that the end of the stool adjacent to the second rotating block is in contact with the body of the resistance band. Since the connecting component is rotatably connected to the first rotating block and the second rotating block respectively, the first rotating block rotates relative to the stool while the stool rotates, thereby driving the second rotating block to rotate through the connecting component, so that the second rotating block can drive the support seat to rotate around the stool, so that the side of the support seat is in contact with the stool. When the support base is in the folded state, the stool is placed vertically with the support base against it. To switch the support base from the unfolded to the folded state, the user needs to fold the stool so that the end of the stool near the second rotating block rotates around the end near the first rotating block, moving that end away from the main body of the resistance band. Since the connecting components are rotatably connected to both the first and second rotating blocks, the stool rotation causes the first rotating block to rotate relative to the stool, which in turn drives the second rotating block to rotate, allowing the support base to rotate around the stool. This changes the position of the support base from being against the stool from a side-mounted position to an angled position. This design allows the support base to rotate relative to the stool as the stool rotates relative to the resistance band, achieving synchronous folding and unfolding of the stool and support base. This improves the speed and convenience of unfolding and folding the support base's linkage folding and unfolding mechanism.

[0023] The above overview is for illustrative purposes only and is not intended to be limiting in any way. Further aspects, embodiments, and features of this disclosure will become readily apparent from the accompanying drawings and the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Attached Figure Description

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this disclosure and should not be construed as limiting the scope of this disclosure.

[0025] Figure 1A schematic diagram of the support base linkage folding and unfolding mechanism according to an embodiment of the present disclosure is shown (the support base is in the unfolded state);

[0026] Figure 2 A cross-sectional view of the support base linkage folding and unfolding mechanism according to an embodiment of the present disclosure is shown (the support base is in a folded state);

[0027] Figure 3 Show Figure 2 Enlarged diagram of A in the middle;

[0028] Figure 4 Show Figure 2 Enlarged diagram of B in the diagram;

[0029] Figure 5 A schematic diagram of the support base linkage folding and unfolding mechanism according to an embodiment of the present disclosure is shown (the support base is in a folded state);

[0030] Figure 6 A schematic diagram of the support base linkage folding and unfolding mechanism according to an embodiment of the present disclosure is shown.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Support base linkage folding and unfolding mechanism;

[0033] 10. Load-bearing component; 11. Stool body; 111. First side plate; 112. Second side plate; 113. Base plate; 1131. Through groove; 12. First rotating block;

[0034] 20. Support assembly; 21. Second rotating block; 211. First connecting part; 212. Second connecting part; 22. Support base; 221. First end; 222. Second end;

[0035] 30. Connecting assembly; 31. Connecting rod; 32. First sleeve; 33. Second sleeve;

[0036] 40. First pivot;

[0037] 50. Second pivot;

[0038] 60. Third pivot;

[0039] 70. Fourth pivot. Detailed Implementation

[0040] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0041] Figure 1 A schematic diagram of the support base linkage folding and unfolding mechanism 1 according to an embodiment of the present disclosure is shown (support base 22 is in the unfolded state); Figure 2 A cross-sectional view of the support base linkage folding and unfolding mechanism 1 according to an embodiment of the present disclosure is shown (support base 22 is in a folded state); Figure 3 Show Figure 2 Enlarged diagram of A in the middle; Figure 4 Show Figure 2 Enlarged diagram of B in the diagram; Figure 5 A schematic diagram of the support base linkage folding and unfolding mechanism 1 according to an embodiment of the present disclosure is shown (support base 22 is in a folded state); Figure 6 A schematic diagram of the support base linkage folding and unfolding mechanism 1 according to an embodiment of the present disclosure is shown. See also Figures 1 to 6 This disclosure provides a support base linkage folding and unfolding mechanism 1, which includes: a load-bearing component 10, a support component 20, and a connecting component 30. The load-bearing component 10 includes a stool body 11 and a first rotating block 12. The first rotating block 12 is used to connect to the main body of the tensioner, and is rotatably connected to one end of the stool body 11. The support component 20 includes a second rotating block 21 and a support base 22. The second rotating block 21 is rotatably connected to the other end of the stool body 11, and the support base 22 is rotatably connected to the second rotating block 21 to achieve switching between a folded state and an unfolded state. One end of the connecting component 30 is rotatably connected to the second rotating block 21 via a first rotating shaft 40, and the other end of the connecting component 30 is rotatably connected to the first rotating block 12 via a second rotating shaft 50.

[0042] For example, the support base linkage folding and unfolding mechanism 1 is connected to the tensioner body through the first rotating block 12, thereby realizing the connection between the support base linkage folding and unfolding mechanism 1 and the tensioner body. It is understood that there are multiple ways to connect the first rotating block 12 and the tensioner body. For example, multiple mounting holes are respectively provided on the first rotating block 12 and the tensioner body, and the mounting holes of the first rotating block 12 and the mounting holes of the tensioner body are connected by bolts and nuts. It should be noted that the connection method between the first rotating block 12 and the tensioner body is not limited here.

[0043] In the unfolded state, the support base 22 and the stool body 11 are set at an angle. In the folded state, the side of the support base 22 is attached to the stool body 11.

[0044] For example, the main body of the resistance band extends vertically. When the support base 22 is in the unfolded state, the stool 11 is placed horizontally, with the support base 22 and the stool 11 arranged at an angle. The end of the support base 22 furthest from the stool 11 rests on the ground to support the stool 11. When the support base 22 is in the folded state, the stool 11 is placed vertically, and the side of the support base 22 is against the stool 11. More specifically, when the support base 22 is in the unfolded state, the angle between the support base 22 and the stool 11 can be 90 degrees, that is, the support base 22 is perpendicular to the stool 11, thereby improving the support stability of the support base 22.

[0045] It should be noted that when the support base 22 is in the unfolded state, the stool 11 is placed horizontally so that the user can lie on the stool 11 to use the resistance band. When the support base 22 is in the folded state, the stool 11 is fitted against the resistance band body, thereby realizing the storage function of the stool 11 and avoiding the stool 11 taking up too much space when not in use.

[0046] According to the support base linkage folding and unfolding mechanism 1 provided in the embodiments of this disclosure, one end of the connecting component 30 is rotatably connected to the second rotating block 21, and the other end of the connecting component 30 is rotatably connected to the first rotating block 12, thereby realizing the switching of the support base 22 between the unfolded state and the folded state. When the support base 22 is in the unfolded state, the stool body 11 is placed horizontally, and the support base 22 and the stool body 11 are set vertically. The end of the support base 22 away from the stool body 11 is supported on the ground to support the stool body 11. When the support base 22 needs to be switched from the unfolded state to the folded state, the user needs to fold the stool body 11 so that the end of the stool body 11 adjacent to the second rotating block 21 rotates around the end of the stool body 11 adjacent to the first rotating block 12, so that the end of the stool body 11 adjacent to the second rotating block 21 is in contact with the body of the tensioner. Since the connecting component 30 is rotatably connected to the first rotating block 12 and the second rotating block 21 respectively, when the stool body 11 rotates, it drives the first rotating block 12 to rotate relative to the stool body 11. Thus, the connecting component 30 drives the second rotating block 21 to rotate, so that the second rotating block 21 can drive the support base 22 to rotate around the stool body 11, so that the side of the support base 22 is in contact with the stool body 11. When the support seat 22 is in the folded state, the stool body 11 is placed vertically, and the support seat 22 is attached to the stool body 11. When the support seat 22 needs to be switched from the unfolded state to the folded state, the user needs to fold the stool body 11 so that the end of the stool body 11 adjacent to the second rotating block 21 rotates around the end of the stool body 11 adjacent to the first rotating block 12, so that the end of the stool body 11 adjacent to the second rotating block 21 is away from the tensioner body. Since the connecting component 30 is rotatably connected to the first rotating block 12 and the second rotating block 21 respectively, when the stool body 11 rotates, it drives the first rotating block 12 to rotate relative to the stool body 11. Thus, the connecting component 30 drives the second rotating block 21 to rotate, so that the second rotating block 21 can drive the support seat 22 to rotate around the stool body 11, so that the support seat 22 changes from being attached to the stool body 11 from the side to being set at an angle with the stool body 11. This design allows the support base 22 to rotate relative to the stool 11 as the stool 11 rotates relative to the main body of the tensioner during the folding process. This enables the stool 11 and the support base 22 to fold and unfold synchronously, which helps to improve the storage speed and convenience of the support base linkage folding and unfolding mechanism 1 when unfolding, as well as the folding speed and convenience when folding.

[0047] In some embodiments, see Figure 5The stool body 11 includes a first side plate 111, a second side plate 112, and a base plate 113. The first side plate 111 and the second side plate 112 are respectively disposed on two opposite edges of the base plate 113. The second rotating block 21 is rotatably connected to the first side plate 111 and the second side plate 112 respectively through a third rotating shaft 60. The first rotating block 12 is rotatably connected to the first side plate 111 and the second side plate 112 respectively through a fourth rotating shaft 70.

[0048] For example, the first side plate 111 and the second side plate 112 are arranged in parallel, and the first side plate 111 and the second side plate 112 are located on the side of the base plate 113 facing away from the ground, so that the stool body 11 forms a U-shaped structure.

[0049] Through the above implementation, the second rotating block 21 can rotate relative to the first side plate 111 and the second side plate 112 via the third rotating shaft 60, and the first rotating block 12 can rotate relative to the first side plate 111 and the second side plate 112 via the fourth rotating shaft 70. When the first rotating block 12 and the second rotating block 21 are connected by the connecting component 30 respectively, the first rotating block 12 and the second rotating block 21 can rotate synchronously. With this setting, when the user folds the stool body 11, as the stool body 11 rotates relative to the main body of the tensioner, the support seat 22 will also rotate relative to the stool body 11, thereby realizing the synchronous folding of the stool body 11 and the support seat 22, which is beneficial to improving the storage speed and storage convenience of the support seat linkage folding and unfolding mechanism 1.

[0050] In some embodiments, the support base 22 is located on the side of the base plate 113 facing away from the first side plate 111, more specifically, the support base 22 is located on the side of the base plate 113 facing the ground. When the support base 22 is in the unfolded state, the support base 22 abuts against the surface of the base plate 113 facing away from the first side plate 111. When the user lies on the stool 11, the user's weight can be transferred to the ground through the contact between the support base 22 and the base plate 113, thereby providing support for the base plate 113.

[0051] In some embodiments, see Figure 1 and Figure 5 The support base 22 includes a first end 221 and a second end 222, which are two opposite ends of the support base 22. The second end 222 is used to abut against the ground to provide support for the stool body 11. The first end 221 is connected to the second rotating block 21. When the support base 22 is in the unfolded state, the first end 221 abuts against the surface of the base plate 113 facing away from the first side plate 111.

[0052] Furthermore, the base plate 113 is provided with a through groove 1131, through which the second rotating block 21 passes and is connected to the support base 22. The through groove 1131 can avoid the second rotating block 21, allowing the second rotating block 21 to rotate within the through groove 1131 when rotating. With this configuration, when the support base 22 is switched from the storage state to the folded state, the second rotating block 21 can rotate on the side of the base plate 113 facing the first side plate 111, and the second rotating block 21 can pass through the through groove 1131 to drive the support base 22 to rotate, thereby causing the first end of the support base 22 to abut against the surface of the base plate 113 facing away from the first side plate 111.

[0053] In some embodiments, see Figure 2 and Figure 4 The second rotating block 21 includes a first connecting part 211 and a second connecting part 212. The first connecting part 211 and the second connecting part 212 are connected and set at an angle. The first connecting part 211 is rotatably connected to the stool body 11, and the second connecting part 212 is connected to the support seat 22. Since the support seat 22 rotates at an angle of 90° in the folded and unfolded states, and the support seat 22 and the third rotating shaft 60 are located on opposite sides of the base plate 113, the sliding stroke of the support seat 22 during rotation is relatively large. This disclosure makes the rotation space of the support seat 22 larger by setting the first connecting part 211 and the second connecting part 212 at an angle, thereby adapting to the rotation angle of the support seat 22 in the folded and unfolded states.

[0054] For example, the included angle between the first rotating part and the second rotating part is 70° to 110°. More specifically, the included angle between the first rotating part and the second rotating part is 90°.

[0055] In some embodiments, see Figure 3 and Figure 4 The second rotating shaft 50 is located on the side of the fourth rotating shaft 70 facing the base plate 113, and the first rotating shaft 40 is located on the side of the third rotating shaft 60 facing the base plate 113, so that the connecting assembly 30 is located on the side of the fourth rotating shaft 70 and the third rotating shaft 60 facing the base plate 113.

[0056] In some embodiments, see Figure 1 and Figure 5 The connecting assembly 30 includes a connecting rod 31, a first sleeve 32, and a second sleeve 33. The first sleeve 32 is connected to one end of the connecting rod 31, and the second sleeve 33 is connected to the other end of the connecting rod 31. The first sleeve 32 is sleeved on the first rotating shaft 40, and the second sleeve 33 is sleeved on the second rotating shaft 50, thereby enabling the first sleeve 32 to rotate around the first rotating shaft 40 and the second sleeve 33 to rotate around the second rotating shaft 50.

[0057] For example, the connecting rod 31 is perpendicular to the first rotating shaft 40 and the second rotating shaft 50 respectively, and the connecting rod 31 is located on the side of the fourth rotating shaft 70 and the third rotating shaft 60 facing the base plate 113.

[0058] In some embodiments, the first rotating shaft 40, the second rotating shaft 50, the third rotating shaft 60, and the fourth rotating shaft 70 are parallel.

[0059] This disclosure also provides a resistance band, which includes a resistance band body and a support base linkage folding and unfolding mechanism 1 according to any of the above embodiments of this disclosure, wherein a first rotating block 12 is connected to the resistance band body. When the support base 22 is in the unfolded state, the stool body 11 and the resistance band body are set at an angle. When the support base 22 is in the folded state, the stool body 11 is fitted against the resistance band body.

[0060] It should be noted that this tensioner possesses all the features and advantages of the aforementioned support base linkage folding and unfolding mechanism 1, which will not be repeated here. In general, the tensioner can be rotatably connected to the second rotating block 21 at one end of the connecting component 30 and to the first rotating block 12 at the other end of the connecting component 30, thereby enabling the support base 22 to switch between the unfolded and folded states. When the support base 22 is in the unfolded state, the stool body 11 is placed horizontally, and the support base 22 and the stool body 11 are set vertically. The end of the support base 22 away from the stool body 11 is supported on the ground to support the stool body 11. When the support base 22 needs to be switched from the unfolded state to the folded state, the user needs to fold the stool body 11 so that the end of the stool body 11 adjacent to the second rotating block 21 rotates around the end of the stool body 11 adjacent to the first rotating block 12, so that the end of the stool body 11 adjacent to the second rotating block 21 is in contact with the body of the tensioner. Since the connecting component 30 is rotatably connected to the first rotating block 12 and the second rotating block 21 respectively, when the stool body 11 rotates, it drives the first rotating block 12 to rotate relative to the stool body 11. Thus, the connecting component 30 drives the second rotating block 21 to rotate, so that the second rotating block 21 can drive the support base 22 to rotate around the stool body 11, so that the side of the support base 22 is in contact with the stool body 11. When the support seat 22 is in the folded state, the stool body 11 is placed vertically, and the support seat 22 is attached to the stool body 11. When the support seat 22 needs to be switched from the unfolded state to the folded state, the user needs to fold the stool body 11 so that the end of the stool body 11 adjacent to the second rotating block 21 rotates around the end of the stool body 11 adjacent to the first rotating block 12, so that the end of the stool body 11 adjacent to the second rotating block 21 is away from the tensioner body. Since the connecting component 30 is rotatably connected to the first rotating block 12 and the second rotating block 21 respectively, when the stool body 11 rotates, it drives the first rotating block 12 to rotate relative to the stool body 11. Thus, the connecting component 30 drives the second rotating block 21 to rotate, so that the second rotating block 21 can drive the support seat 22 to rotate around the stool body 11, so that the support seat 22 changes from being attached to the stool body 11 from the side to being set at an angle with the stool body 11. This design allows the support base 22 to rotate relative to the stool 11 as the stool 11 rotates relative to the main body of the tensioner during the folding process. This enables the stool 11 and the support base 22 to fold and unfold synchronously, which helps to improve the storage speed and convenience of the support base linkage folding and unfolding mechanism 1 when unfolding, as well as the folding speed and convenience when folding.

[0061] Other components of the support base linkage folding and unfolding mechanism and the tensioner in the above embodiments can be adopted from various technical solutions that are now and will be known to those skilled in the art, and will not be described in detail here.

[0062] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0064] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0065] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this disclosure. To simplify the disclosure, specific examples of components and arrangements have been described above. Of course, these are merely examples and are not intended to limit the scope of this disclosure. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0067] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this disclosure, and these should all be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A support base linkage folding and unfolding mechanism, characterized in that, include: The support assembly includes a stool body and a first rotating block for connection to the body of the tensioner, the first rotating block being rotatably connected to one end of the stool body; The support assembly includes a second rotating block and a support base. The second rotating block is rotatably connected to the other end of the stool body, and the support base is rotatably connected to the second rotating block to enable the support base to switch between a folded state and an unfolded state. A connecting component, one end of which is rotatably connected to the second rotating block via a first rotating shaft, and the other end of which is rotatably connected to the first rotating block via a second rotating shaft; In the unfolded state, the support base and the stool body are set at an angle; in the folded state, the side of the support base is attached to the stool body.

2. The support base linkage folding and unfolding mechanism according to claim 1, characterized in that, The stool body includes a first side plate, a second side plate, and a bottom plate. The first side plate and the second side plate are respectively disposed on two opposite edges of the bottom plate. The second rotating block is rotatably connected to the first side plate and the second side plate respectively through a third rotating shaft. The first rotating block is rotatably connected to the first side plate and the second side plate respectively through a fourth rotating shaft.

3. The support base linkage folding and unfolding mechanism according to claim 2, characterized in that, The support base is located on the side of the base plate facing away from the first side plate; when the support base is in the unfolded state, the support base abuts against the surface of the base plate facing away from the first side plate.

4. The support base linkage folding and unfolding mechanism according to claim 2, characterized in that, The support base includes a first end and a second end for abutting against the ground to provide support to the stool body, the first end being connected to the second rotating block; when the support base is in the unfolded state, the first end abuts against the surface of the base plate facing away from the first side plate.

5. The support base linkage folding and unfolding mechanism according to claim 2, characterized in that, The base plate is provided with a through groove, and the second rotating block passes through the through groove and is connected to the support base.

6. The support base linkage folding and unfolding mechanism according to claim 2, characterized in that, The second rotating block includes a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected and set at an included angle, the first connecting part is rotatably connected to the stool body, and the second connecting part is connected to the support base.

7. The support base linkage folding and unfolding mechanism according to claim 6, characterized in that, The second rotating shaft is located on the side of the fourth rotating shaft facing the base plate, and the first rotating shaft is located on the side of the third rotating shaft facing the base plate.

8. The support base linkage folding and unfolding mechanism according to claim 2, characterized in that, The first rotating shaft, the second rotating shaft, the third rotating shaft, and the fourth rotating shaft are parallel.

9. The support base linkage folding and unfolding mechanism according to any one of claims 1-8, characterized in that, The connecting assembly includes a connecting rod, a first sleeve, and a second sleeve. The first sleeve is connected to one end of the connecting rod, and the second sleeve is connected to the other end of the connecting rod. The first sleeve is fitted onto the first rotating shaft, and the second sleeve is fitted onto the second rotating shaft.

10. A tensioner, characterized in that, Includes a tensioner body and a support base linkage folding and unfolding mechanism as described in any one of claims 1-9, wherein the first rotating block is connected to the tensioner body; When the support base is in the unfolded state, the stool body and the tensioner body are set at an angle. When the support is in the folded state, the stool body is attached to the main body of the tensioner.

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