Fitness stool with damping structure

Abstract

The invention provides a bodybuilding stool with a damping structure, which comprises a bodybuilding stool body, a cushion, a backrest support plate, a backrest support rod, the damping structure and a connecting shaft, the cushion is rotatably connected with the backrest support plate, the damping structure is arranged in the middle of the backrest support plate, one end of the backrest support rod is rotatably connected with the bodybuilding stool body, and the other end of the backrest support rod is connected with the connecting shaft. The other end of the backrest supporting rod is connected with the damping structure; the damping structure comprises a damping shaft, a friction plate, a fixing piece, a multi-layer elastic gasket and a locking piece, and the friction plate is arranged on the damping shaft in a sleeving mode and rotates synchronously with the damping shaft; one end of the damping shaft is arranged in the middle of the backrest supporting plate through the friction plate, the fixing piece, the multiple layers of elastic gaskets and the locking piece, and the other end of the damping shaft is connected with the backrest supporting rod through the connecting shaft. By means of the simple and efficient structural design, slow descending of the backrest supporting plate can be achieved, the humanized design degree of the product is improved, and the service life and stability of the product are effectively guaranteed through further optimization design.

Description

Technical Field

[0001] The invention relates to a fitness bench, in particular to a fitness bench with a damping structure. Background Art

[0002] In the field of fitness equipment, especially in the design of fitness benches, users have increasingly higher requirements for the comfort and safety of products. Traditional fitness benches often lack an effective damping structure, which causes the backrest support plate to move too quickly when adjusting the angle, which in turn causes the user to feel uncomfortable, and more seriously may cause injuries and other problems. In addition, rapid movements may also damage the mechanical structure of the fitness bench. Even so, there are currently some fitness bench solutions with damping functions, which aim to improve safety and comfort during use. However, these existing designs still have problems with complex structures and high costs. Due to the use of unreasonable structural designs, they are prone to damage in high-frequency fitness environments, which in turn affects the service life and stability of the product. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a fitness bench with a damping structure, which aims to achieve the slow descent of the back support plate through a simple and efficient structural design, improve the humanized design of the product, and further ensure the service life and stability of the product.

[0004] To this end, the present invention provides a fitness bench with a damping structure, comprising a fitness bench body, wherein the fitness bench body is provided with a seat cushion, a back support plate, a back support rod, a damping structure and a connecting shaft, the seat cushion and the back support plate are rotatably connected, the damping structure is embedded in the middle of the back support plate, one end of the back support rod is rotatably connected to an end of the fitness bench body away from the seat cushion, and the other end of the back support rod is connected to the damping structure; wherein the damping structure comprises a damping shaft, a friction plate, a fixing part, a multi-layer elastic gasket and a locking part, the friction plate is sleeved on the damping shaft, and and the backrest support plate is connected to the support rod through the connecting shaft. The connecting shaft is connected to the support rod of the backrest and the support plate of the backrest is connected to the support rod of the backrest. The connecting shaft is connected to the support rod of the backrest and the support plate of the backrest is connected to the support rod of the backrest. The connecting shaft is connected to the support rod of the backrest and the support plate of the backrest is connected to the support rod of the backrest.

[0005] A further improvement of the present invention is that a symmetrical limiting surface is provided on the outer side surface of the damping shaft, and the inner hole of the friction plate is a first flat hole matching the damping shaft.

[0006] A further improvement of the present invention is that an external thread is provided at one end of the damping shaft away from the connecting shaft, the locking piece adopts a nut matching the external thread, and the axial length of the external thread is not less than the axial length of the locking piece; the damping shaft passes through the middle hole of the fixing piece, and mounting holes are symmetrically provided at both ends of the middle hole, and the fixing piece is connected to the middle part of the backrest support plate through the mounting holes.

[0007] A further improvement of the present invention is that a accommodating cavity and an accommodating groove are provided on the backrest support plate, the accommodating groove is provided on both sides of the accommodating cavity, and the accommodating cavity is communicated with the accommodating groove, the damping structure is provided in the accommodating cavity, and the backrest support rod is movably provided in the accommodating groove.

[0008] A further improvement of the present invention is that a connecting flat groove is provided at one end of the damping shaft close to the connecting shaft, and a connecting protrusion is provided at one end of the connecting shaft close to the damping shaft, and the connecting protrusion is matched with the connecting flat groove.

[0009] A further improvement of the present invention is that arc limiting parts are arranged on both sides of the top of the connecting flat groove, and a first limiting step is arranged at the rear end of the connecting protrusion, and the first limiting step is matched with the arc limiting part.

[0010] A further improvement of the present invention is that the main axis of the connecting shaft is a flat shaft, and a second flat hole is provided at one end of the backrest support rod close to the damping structure, and the second flat hole is matched with the main axis of the connecting shaft.

[0011] A further improvement of the present invention is that the main shaft of the connecting shaft is provided with a second limiting step, and the second limiting step is provided on a side of the first limiting step away from the connecting protrusion.

[0012] A further improvement of the present invention is that a clamping ring is provided at one end of the connecting shaft away from the damping structure, and the clamping ring is penetrated and arranged on the backrest support plate.

[0013] A further improvement of the present invention is that the number of the back support rods, damping structures and connecting shafts is at least two, and each back support rod, damping structure and connecting shaft constitutes a corresponding set of damping support structures and are evenly arranged between the fitness bench body and the back support plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: one end of the backrest support rod is rotatably connected to the end of the fitness bench body away from the seat cushion, and the other end of the backrest support rod is connected to the damping structure arranged in the middle of the backrest support plate; in the damping structure, the friction plate rotates synchronously with the damping shaft, one end of the damping shaft is arranged in the middle of the backrest support plate through the friction plate, the fixing part, the multi-layer elastic gasket and the locking part, and the other end of the damping shaft is connected to the backrest support rod through the connecting shaft; therefore, in the process of the backrest support plate descending, the friction plate always rotates synchronously with the damping shaft, and in the process of rotation, the multi-layer elastic gasket generates a damping torque through the locking and fixing action of the friction plate, the fixing part and the locking part, and the movement of the backrest support rod is driven by the damping shaft and the connecting shaft to realize the slow descent of the backrest support plate, and the overall structure is easy to realize and reasonable and efficient. Therefore, the present invention can realize the slow descent of the backrest support plate through a simple and efficient structural design, improve the humanized design degree of the product, and on this basis, further optimize the structure design to effectively ensure the service life and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 yes Figure 1 A is a schematic diagram of the enlarged structure of the middle part; Figure 3 is a schematic diagram of an exploded structure of a damping structure according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the assembly structure of a backrest support rod and a connecting shaft according to an embodiment of the present invention; Figure 5 It is a schematic cross-sectional structure diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0016] In the description of the present invention, if it involves a description of orientation, for example, the orientation or position relationship indicated by "upper", "lower", "front", "back", "left", "right", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. If a certain technical feature is referred to as "set", "fixed", "connected", or "installed" on another technical feature, it can be directly set, fixed, or connected to the other technical feature, or it can be indirectly set, fixed, connected, or installed on the other technical feature.

[0017] In the description of the present invention, if "several" is involved, it means more than one; if "multiple" is involved, it means more than two; if "greater than", "less than", or "exceed" is involved, it should be understood as not including the number itself; if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first", "second", etc. are involved, they should be understood as being used only to distinguish the names of the same or similar technical features, and should not be understood as implying / indicating the relative importance of the technical features, the number of the technical features, or the order of the technical features.

[0018] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] like Figures 1 to 5 As shown, the present embodiment provides a fitness bench with a damping structure, comprising a fitness bench body 1, on which a seat cushion 2, a back support plate 3, a back support rod 4, a damping structure 5 and a connecting shaft 6 are arranged, the seat cushion 2 and the back support plate 3 are rotatably connected, the damping structure 5 is embedded in the middle of the back support plate 3, one end of the back support rod 4 is rotatably connected to the end of the fitness bench body 1 away from the seat cushion 2, and the other end of the back support rod 4 is connected to the damping structure 5; wherein the damping structure 5 comprises a damping shaft 501, a friction plate 502, a fixing member 503, a multi-layer elastic gasket 504 and a locking member 505, the friction plate 502 is sleeved on the damping shaft 501 and is connected to the damping shaft 501. The shaft 501 rotates synchronously; one end of the damping shaft 501 is arranged in the middle of the back support plate 3 through the friction plate 502, the fixing member 503, the multi-layer elastic gasket 504 and the locking member 505, and the other end of the damping shaft 501 is connected to the back support rod 4 through the connecting shaft 6; during the descending process of the back support plate 3, the friction plate 502 always rotates synchronously with the damping shaft 501, and during the rotation process, the multi-layer elastic gasket 504 generates a damping torque through the locking and fixing effect of the friction plate 502, the fixing member 503 and the locking member 505, and the movement of the back support rod 4 is driven by the damping shaft 501 and the connecting shaft 6 to realize the slow descent of the back support plate 3.

[0020] The seat cushion 2 and the backrest support plate 3 of this embodiment are arranged on the fitness bench body 1, wherein the backrest support plate 3 is used to support the backrest and is rotatably connected with the seat cushion 2. Figure 1 and Figure 5It should be noted that many existing damping structures are relatively complex, costly to implement and easy to damage; some damping structures are directly arranged on the shaft between the seat cushion 2 and the backrest support plate 3. In this structure, since the shaft itself belongs to the main shaft of the backrest, if the damping is designed using this shaft, the required precision control and strength requirements of the parts will be very high, otherwise, it will seriously affect the actual use effect or life.

[0021] Different from the existing technology, Figures 1 to 4 As shown, the backrest support plate 3 of the present embodiment is provided with a accommodating cavity 301 and an accommodating groove 302, the accommodating groove 302 is arranged on both sides of the accommodating cavity 301, and the accommodating cavity 301 is communicated with the accommodating groove 302, and the damping structure 5 is arranged in the accommodating cavity 301, so as to reasonably utilize the middle position on the backrest support plate 3 to realize the installation and fixation of the damping structure 5; and correspondingly, the backrest support rod 4 is movably arranged in the accommodating groove 302, that is, corresponding accommodating grooves 302 are specially designed on both sides of the accommodating cavity 301, which are used as movable tracks and accommodating grooves of the backrest support rod 4, so as to provide a good guiding effect during the slow descent of the backrest support plate 3, avoid interference and influence of the internal structure, and at the same time, it can also well realize the hidden storage and protection of the backrest support rod 4, effectively ensuring the service life and stability of the product.

[0022] In the damping structure 5, the damping shaft 501 refers to the main shaft of the damping structure 5, and the friction plate 502 is used to improve the assembly stability between the various structures. The friction plate 502 rotates synchronously with the damping shaft 501. The fixing member 503 refers to a structure used to fix the damping structure 5 to the middle of the back support plate 3, so as to achieve rapid assembly and disassembly of the damping structure 5 and facilitate product maintenance. The fixing member 503 is fixed to the middle of the back support plate 3 so as to be misaligned with the rotating shaft between the seat cushion 2 and the back support plate 3, so as to achieve a triangular support effect during the lifting process, thereby ensuring the stability and reliability of the overall structure. Figure 5 The multi-layer elastic gasket 504 is provided with multiple layers of stacked elastic gaskets, which are used to generate pressure through locking with the locking member 505 to generate damping torque; then the backrest support rod 4 is driven to move through the damping shaft 501 and the connecting shaft 6 to achieve the slow descent of the backrest support plate 3.

[0023] like Figure 1 and Figure 3As shown, the outer side surface of the damping shaft 501 of this embodiment is provided with a symmetrical limiting surface 5011, and the symmetrical limiting surface 5011 always realizes the limiting effect on the friction plate 502, and the inner hole of the friction plate 502 is a first flat hole matched with the damping shaft 501, so that in actual work, the friction plate 502 is always guaranteed to rotate synchronously with the damping shaft 501. Preferably, among the structures of the damping shaft 501, the fixing member 503, the multi-layer elastic gasket 504 and the locking member 505, the friction plate 502 is arranged between two adjacent structures to ensure the friction between the various structures and improve the structural stability of the product.

[0024] like Figure 3 As shown, the damping shaft 501 described in this embodiment is provided with an external thread 5012 at one end away from the connecting shaft 6, and the locking member 505 adopts a nut matched with the external thread 5012. By adjusting the threaded assembly position of the nut and the external thread 5012, the pressing effect on the multi-layer elastic gasket 504 can be adjusted to adjust the required damping torque. Therefore, the axial length of the external thread 5012 described in this embodiment is not less than the axial length of the locking member 505; that is, the thread length of the external thread 5012 is greater than the thickness of the nut, thereby providing an adjustable space for the damping torque, which is convenient for meeting different practical application requirements. Figure 1 and Figure 3 As shown, the damping shaft 501 passes through the middle hole 5031 of the fixing member 503, and mounting holes 5032 are symmetrically provided at both ends of the middle hole 5031. The fixing member 503 is connected to the middle part of the backrest support plate 3 through the mounting holes 5032, and the assembly structure is simple and easy to implement.

[0025] like Figures 1 to 4 As shown, in this embodiment, the damping shaft 501 is provided with a connecting flat groove 5013 at one end close to the connecting shaft 6, and the connecting shaft 6 is provided with a connecting protrusion 601 at one end close to the damping shaft 501, and the connecting protrusion 601 is matched with the connecting flat groove 5013, that is, the connecting protrusion 601 is also a flat protrusion corresponding to the connecting flat groove 5013, thereby realizing a stable connection between the damping structure 5 and the connecting shaft 6, and the connection structure of the flat groove plays a limiting role, so that the connecting shaft 6 can follow the damping structure 5 to achieve reliable movement. Preferably, as Figure 3 As shown, the limiting direction of the connecting flat groove 5013 is perpendicular to the limiting direction of the limiting surface 5011, which is beneficial to the processing and assembly of parts.

[0026] like Figures 1 to 4As shown, in this embodiment, arc stoppers 5014 are arranged on both sides of the top of the connecting flat groove 5013, and a first stopper step 602 is arranged at the rear end of the connecting protrusion 601, and the first stopper step 602 is matched with the arc stopper 5014. In other words, on the basis of the stopper connection between the connecting protrusion 601 and the connecting flat groove 5013, the first stopper step 602 and the arc stopper 5014 are further matched to realize a second stopper function, so as to further improve the connection stability between the damping structure 5 and the connecting shaft 6 and ensure the service life of the product.

[0027] like Figure 4 As shown, the main axis of the connecting shaft 6 described in this embodiment is a flat shaft, and a second flat hole 401 is provided at one end of the backrest support rod 4 close to the damping structure 5. The second flat hole 401 is matched with the main axis of the connecting shaft 6 to ensure a reliable connection between the connecting shaft 6 and the backrest support rod 4.

[0028] Preferably, Figure 4 As shown, the main shaft of the connecting shaft 6 of this embodiment is provided with a second limiting step 603, and the second limiting step 603 is provided on the side of the first limiting step 602 away from the connecting protrusion 601, so that through a simple structure, when assembling with the backrest support rod 4, the limiting effect of the assembly position of the backrest support rod 4 is effectively achieved. The end of the connecting shaft 6 of this embodiment away from the damping structure 5 is provided with a snap ring 604, and the snap ring 604 is penetrated and arranged on the backrest support plate 3, so as to increase the reliability during assembly.

[0029] like Figure 1 and Figure 2 As shown, the number of the backrest support rods 4, damping structures 5 and connecting shafts 6 described in this embodiment is at least two, and each backrest support rod 4, damping structure 5 and connecting shaft 6 correspondingly constitutes a group of damping support structures, and is evenly arranged between the fitness bench body 1 and the backrest support plate 3 to ensure balanced force in the backrest lifting control, and provide symmetrical support, which is stable and reliable.

[0030] In summary, one end of the backrest support rod 4 described in this embodiment is rotatably connected to the end of the fitness bench body 1 away from the seat cushion 2, and the other end of the backrest support rod 4 is connected to the damping structure 5 arranged in the middle of the backrest support plate 3; in the damping structure 5, the friction plate 502 rotates synchronously with the damping shaft 501, and one end of the damping shaft 501 is arranged in the middle of the backrest support plate 3 through the friction plate 502, the fixing member 503, the multi-layer elastic gasket 504 and the locking member 505, and the other end of the damping shaft 501 It is connected to the backrest support rod 4 through the connecting shaft 6; therefore, during the process of the backrest support plate 3 descending, the friction plate 502 always rotates synchronously with the damping shaft 501, and during the rotation process, the multi-layer elastic gasket 504 generates a damping torque through the locking and fixing action of the friction plate 502, the fixing member 503 and the locking member 505, and drives the movement of the backrest support rod 4 through the damping shaft 501 and the connecting shaft 6 to achieve the slow descent of the backrest support plate 3. The overall structure is easy to implement and is reasonable and efficient. Therefore, this embodiment can achieve the slow descent of the backrest support plate through a simple and efficient structural design, improve the humanized design of the product, and on this basis, further optimize the structure design to effectively ensure the service life and stability of the product.

[0031] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A fitness bench with a damping structure, comprising a fitness bench body (1), characterized in that: The fitness stool body (1) is provided with a seat cushion (2), a backrest support plate (3), a backrest support rod (4), a damping structure (5) and a connecting shaft (6); the seat cushion (2) and the backrest support plate (3) are rotatably connected; the damping structure (5) is embedded in the middle of the backrest support plate (3); one end of the backrest support rod (4) is rotatably connected to an end of the fitness stool body (1) away from the seat cushion (2); the other end of the backrest support rod (4) is connected to the damping structure (5); wherein the damping structure (5) comprises a damping shaft (501), a friction plate (502), a fixing member (503), a multi-layer elastic gasket (504) and a locking member (505); the friction plate (502) is sleeved on the damping shaft (501) and rotates synchronously with the damping shaft (501); One end of the damping shaft (501) is arranged at the middle part of the backrest support plate (3) through the friction plate (502), the fixing member (503), the multi-layer elastic gasket (504) and the locking member (505), and the other end of the damping shaft (501) is connected to the backrest support rod (4) through the connecting shaft (6); during the descending process of the backrest support plate (3), the friction plate (502) always rotates synchronously with the damping shaft (501), and during the rotation process, the multi-layer elastic gasket (504) generates a damping torque through the locking and fixing action of the friction plate (502), the fixing member (503) and the locking member (505), and the backrest support rod (4) is driven to move through the damping shaft (501) and the connecting shaft (6), so as to realize the slow descent of the backrest support plate (3).

2. The fitness bench with a damping structure according to claim 1, characterized in that: The outer side surface of the damping shaft (501) is provided with a symmetrical limiting surface (5011), and the inner hole of the friction plate (502) is a first flat hole matching the damping shaft (501).

3. The fitness bench with a damping structure according to claim 1, characterized in that: An external thread (5012) is provided at one end of the damping shaft (501) away from the connecting shaft (6); the locking member (505) adopts a nut matching the external thread (5012), and the axial length of the external thread (5012) is not less than the axial length of the locking member (505); the damping shaft (501) passes through the middle hole (5031) of the fixing member (503); mounting holes (5032) are symmetrically provided at both ends of the middle hole (5031); the fixing member (503) is connected to the middle part of the backrest support plate (3) through the mounting holes (5032).

4. The fitness bench with a damping structure according to claim 1, characterized in that: The backrest support plate (3) is provided with a receiving cavity (301) and a receiving groove (302), the receiving groove (302) being arranged on both sides of the receiving cavity (301), and the receiving cavity (301) is communicated with the receiving groove (302), the damping structure (5) is arranged in the receiving cavity (301), and the backrest support rod (4) is movably arranged in the receiving groove (302).

5. The fitness bench with a damping structure according to any one of claims 1 to 4, characterized in that: A connecting flat groove (5013) is provided at one end of the damping shaft (501) close to the connecting shaft (6), and a connecting protrusion (601) is provided at one end of the connecting shaft (6) close to the damping shaft (501), wherein the connecting protrusion (601) matches the connecting flat groove (5013).

6. The fitness bench with a damping structure according to claim 5, characterized in that: Arc limiting portions (5014) are provided on both sides of the top of the connecting flat groove (5013), and a first limiting step (602) is provided at the rear end of the connecting protruding portion (601), wherein the first limiting step (602) matches the arc limiting portion (5014).

7. The fitness bench with a damping structure according to claim 6, characterized in that: The main axis of the connecting shaft (6) is a flat shaft, and a second flat hole (401) is provided at one end of the backrest support rod (4) close to the damping structure (5), and the second flat hole (401) is matched with the main axis of the connecting shaft (6).

8. The fitness bench with a damping structure according to claim 6, characterized in that: The main shaft of the connecting shaft (6) is provided with a second limiting step (603), and the second limiting step (603) is arranged on a side of the first limiting step (602) away from the connecting protrusion (601).

9. The fitness bench with a damping structure according to any one of claims 1 to 4, characterized in that: A clamping ring (604) is provided at one end of the connecting shaft (6) away from the damping structure (5), and the clamping ring (604) is penetrated and arranged on the backrest support plate (3).

10. The fitness bench with a damping structure according to any one of claims 1 to 4, characterized in that: The number of the backrest support rods (4), the damping structures (5) and the connecting shafts (6) is at least two, and each backrest support rod (4), the damping structure (5) and the connecting shaft (6) constitutes a set of damping support structures, which are evenly arranged between the fitness bench body (1) and the backrest support plate (3).

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