Multi-position adjustable seat for a stationary bicycle

Abstract

This utility model discloses a multi-level adjustable seat on a stationary bike, including a frame and a seat frame. The frame has a non-circular sleeve for connecting the seat frame. The seat frame has a connecting tube that matches and slides into the non-circular sleeve. The connecting tube has several positioning holes. The non-circular sleeve has positioning elements, including an elastic element, a fixed seat fixed to the non-circular sleeve, and an operating arm hinged to the fixed seat. The operating arm forms a lever structure with the hinge as the fulcrum. One end of the operating arm has an insertion part that slides into the non-circular sleeve and inserts into any one of the positioning holes. The elastic element is located between the fixed seat and the operating arm and always exerts elastic force on the side of the operating arm away from the insertion part. Compared with the prior art, the advantages of this utility model are that the adjustment operation is simple and quick, eliminating the need for multiple adjustments and attempts, greatly improving the user experience, reducing component wear, and improving the stability and reliability of the adjustment.

Description

Technical Field

[0001] This utility model relates to the field of exercise bike technology, and in particular to an exercise bike with a seat that can be adjusted in multiple positions. Background Technology

[0002] With increasing health awareness, the demand for fitness equipment is also growing. Indoor cycling bikes, as a type of fitness equipment that simulates cycling, are favored by many fitness enthusiasts due to their advantages such as exercising all muscles, improving cardiovascular function, and being unaffected by weather. However, existing indoor cycling bikes have some shortcomings in terms of seat height adjustment.

[0003] For example, a vibration magnetic control vehicle disclosed in Chinese utility model patent CN203183581U has a seat height adjustment method by setting multiple positioning holes on the sleeve at the bottom of the seat, setting positioning screw holes on the seat connecting tube, fixing screws to the positioning screw holes of the seat connecting tube, and inserting the end of the screw into one of the multiple positioning holes of the seat sleeve to fix the seat height.

[0004] While the above solution can adjust the seat height, it requires loosening the fixing screws first, then moving the seat up and down to find a suitable height, and then trying to insert the end of the screw into the positioning hole on the seat sleeve rod. Since the position of the positioning hole and the position of the screw end are difficult to match precisely, it is often necessary to repeatedly adjust the seat height and the screw position to find a suitable positioning hole for fixing. The operation is cumbersome and greatly reduces the user experience. At the same time, frequent adjustments and attempts may also lead to increased wear between the seat connecting tube and the seat sleeve rod, further reducing the stability and reliability of seat adjustment. Utility Model Content

[0005] This invention addresses the problem that frequent adjustments and attempts are cumbersome when adjusting the seat of an existing exercise bike, and may also lead to increased wear between the seat connecting tube and the seat sleeve rod. The technical problem to be solved by this invention is to provide an exercise bike with a seat that can be adjusted in multiple positions to solve the above problems.

[0006] A further preferred embodiment of this utility model is as follows: It includes a frame and a seat frame. The frame has a non-circular sleeve for connecting the seat frame. The seat frame has a connecting tube that matches and slides into the non-circular sleeve. The connecting tube has several positioning holes along its length. The non-circular sleeve has a positioning element, which includes an elastic element, a fixed seat fixed to the non-circular sleeve, and an operating arm hinged to the fixed seat. The operating arm forms a lever structure with the hinge point as the fulcrum. One end of the operating arm has an insertion part that slides into the non-circular sleeve and is inserted into any one of the positioning holes. The elastic element is located between the fixed seat and the operating arm and always has elastic force on the side of the operating arm away from the insertion part. When the end of the operating arm away from the insertion part is pressed, the insertion part of the operating arm moves upward, causing the insertion part to disengage from the positioning hole and releasing the fixing of the connecting tube. When the operating arm loses pressure, the insertion part is inserted downward into the positioning hole under the action of the elastic element to fix the connecting tube.

[0007] A further preferred embodiment of this utility model is that the distance from the hinge of the operating arm to the insertion end is less than the distance from the hinge of the operating arm to the end furthest from the insertion end.

[0008] A further preferred embodiment of this utility model is as follows: one end of the operating arm is rotatably connected to a positioning pin, the positioning pin being the insertion part, the non-circular sleeve having an insertion hole, the positioning pin being inserted into the non-circular sleeve through the insertion hole, and when the connecting tube slides, the end of the positioning pin slides along the surface of the connecting tube to the positioning hole, the insertion part being inserted into the positioning hole under the action of the elastic element to limit the connecting tube.

[0009] A further preferred embodiment of this utility model is as follows: the fixed base is a U-shaped base body, the two ends of the operating arm have symmetrically arranged connecting shafts, and the two side walls of the fixed base are provided with shaft holes corresponding to the two connecting shafts. The operating arm is hinged to the corresponding shaft holes on the fixed base through the connecting shafts on both sides.

[0010] A further preferred embodiment of this utility model is: the elastic element is a torsion spring, there are two torsion springs, the two torsion springs are respectively sleeved on two connecting shafts, the two side walls of the operating arm are provided with limiting grooves, one free end of each of the two torsion springs abuts against the fixed seat, and the other free end abuts against the limiting groove on the corresponding side of the operating arm.

[0011] A further preferred embodiment of this utility model is as follows: the elastic element is a torsion spring, there are two torsion springs, the two torsion springs are respectively sleeved on two connecting shafts, and the upper free ends of the two torsion springs extend towards each other and are connected to form an upper elastic arm, the lower free ends of the two torsion springs extend towards each other and are connected to form a lower elastic arm, the lower elastic arm is fixed on a fixed base, and the upper elastic arm abuts against the lower surface of the operating arm.

[0012] A further preferred embodiment of this utility model is: the elastic element is a return spring, the return spring and the insertion part are respectively located on both sides of the hinge of the operating arm, one end of the return spring abuts against the fixed seat, and the other end abuts against the lower surface of the operating arm.

[0013] A further preferred embodiment of this utility model is as follows: the seat frame includes a seat cushion, a support rod, an adjusting seat, and the connecting tube. The support rod is fixedly disposed at the bottom of the seat cushion. The adjusting seat includes a load-bearing tube arranged along the front-rear direction of the vehicle frame and a sliding seat slidably disposed on the load-bearing tube. The load-bearing tube is fixed at the upper end of the connecting tube. The load-bearing tube is provided with a plurality of limiting holes. The support rod is fixed on the sliding seat. The sliding seat is provided with limiting members corresponding to the limiting holes. The limiting members and the positioning members have the same structure.

[0014] A further preferred embodiment of this utility model is: the non-circular sleeve is a racetrack-shaped tube, a polygonal tube, or an elliptical tube, and the connecting tube is clearance-fitted with the non-circular sleeve.

[0015] Compared with existing technologies, this invention has the following advantages: By incorporating an operating arm and an elastic element, the user only needs to press one end of the operating arm to disengage the insertion part from the positioning hole, releasing the fixing of the connecting tube. At this point, the connecting tube or seat cushion can be slid to adjust the height. After releasing the operating arm, continuing to slide the connecting tube or seat cushion causes the insertion part to automatically and accurately insert into the positioning hole under the action of the elastic element, completing the fixing. This design makes the adjustment operation simple and quick, allowing users to easily and rapidly adjust the seat height without multiple adjustments and attempts, greatly improving the user experience. It also reduces component wear and improves the stability and reliability of the adjustment. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 This utility model Figure 1 Top view;

[0020] Figure 4This utility model Figure 3 Sectional view of CC;

[0021] Figure 5 This utility model Figure 4 A magnified view of a section at point B in the middle;

[0022] Figure 6 This is an exploded view of the present invention.

[0023] In the diagram: 1. Frame; 11. Non-circular sleeve; 111. Insertion hole; 2. Seat frame; 21. Connecting tube; 211. Positioning hole; 22. Seat cushion; 23. Support rod; 24. Adjustment seat; 241. Load-bearing tube; 2411. Limiting hole; 242. Sliding seat; 2421. Through hole; 3. Positioning component; 31. Torsion spring; 311. Upper elastic arm; 312. Lower elastic arm; 32. Fixed seat; 321. Shaft hole; 33. Operating arm; 331. Positioning pin; 332. Connecting shaft; 4. Limiting component. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0025] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0026] Example 1

[0027] This embodiment mainly describes a stationary bike with a multi-level adjustable seat, as detailed below:

[0028] like Figures 1 to 6As shown, a multi-position adjustable seat bicycle includes a frame 1 and a seat frame 2. The frame 1 has a non-circular sleeve 11 for connecting the seat frame 2. The seat frame 2 has a connecting tube 21, which is slidably inserted into and slidably connected to the non-circular sleeve 11. The connecting tube 21 and the non-circular sleeve 11 are matched to prevent circumferential rotation between the connecting tube 21 and the non-circular sleeve 11. The connecting tube 21 has several positioning holes 211 along its length. The non-circular sleeve 11 is provided with a positioning element 3, which includes a fixed seat 32, an operating arm 33, and an elastic element. The fixed seat 32 is fixed to the non-circular sleeve 11, and the operating arm 33 is hinged to the fixed seat 32. The operating arm 33 forms a lever structure with the hinge point as the fulcrum. One end of the operating arm 33 has an insertion part that slides into the non-circular sleeve 11 and is inserted into any one of the positioning holes 211. The elastic element is located between the fixed base 32 and the operating arm 33, and always exerts a spring force on the side of the operating arm 33 away from the insertion part, with the direction of the spring force opposite to the direction of pressing the operating arm 33. When the end of the operating arm 33 away from the insertion part is pressed, the insertion part of the operating arm 33 moves upward, causing the insertion part to disengage from the positioning hole 211, thereby releasing the fixation of the connecting tube 21; when the operating arm 33 loses pressure, the insertion part is inserted downward into the positioning hole 211 under the action of the elastic element, fixing the connecting tube 21. This structural design allows the user to easily release the fixation by simply pressing the operating arm 33 when adjusting the height of the seat cushion 22, and then release the operating arm 33 after moving the seat cushion frame 2 to the appropriate height. The insertion part automatically and accurately inserts into the positioning hole 211 under the action of the elastic element to complete the fixation. The operation is simple and quick, greatly improving the user experience, while reducing component wear and improving the stability and reliability of the adjustment. By setting several positioning holes 211 on the connecting tube 21, multiple levels of height adjustment of the seat cushion 22 can be achieved.

[0029] like Figure 2 As shown, the distance from the hinge of the operating arm 33 to the insertion end is less than the distance from the hinge of the operating arm 33 to the end furthest from the insertion end. This design makes the operating arm 33 more effortless under the lever principle, allowing users to more easily move the insertion part up and down when pressing the operating arm 33, further improving the convenience of adjustment and reducing the difficulty of operation, making it especially suitable for users of different ages and physical strength.

[0030] like Figure 4 and Figure 5As shown, a positioning pin 331 is rotatably connected to one end of the operating arm 33. The positioning pin 331 serves as an insertion part, and an insertion hole 111 is provided on the non-circular sleeve 11. The positioning pin 331 extends into the non-circular sleeve 11 through the insertion hole 111. When the connecting tube 21 slides, the end of the positioning pin 331 slides along the surface of the connecting tube 21 to the positioning hole 211. Under the action of the elastic element, the insertion part extends into the positioning hole 211, limiting the connection tube 21. This design allows the insertion part to extend more stably into the positioning hole 211, further improving the stability and reliability of the seat height adjustment. Simultaneously, the sliding fit between the positioning pin 331 and the surface of the connecting tube 21 makes the adjustment process smoother, reducing friction and wear between components and extending service life.

[0031] Specifically, the fixed base 32 is a U-shaped body, and the operating arm 33 has symmetrically arranged connecting shafts 332 at both ends. The two side walls of the fixed base 32 are provided with shaft holes 321 corresponding to the two connecting shafts 332. The operating arm 33 is hinged to the corresponding shaft holes 321 on the fixed base 32 via the connecting shafts 332 on both sides. This structural design allows the operating arm 33 to be more stably hinged to the fixed base 32, improving the structural stability of the entire positioning component 3. At the same time, the U-shaped design provides a more reasonable position for the installation of the elastic element, further optimizing the structural layout of the entire device and making the entire device more compact and stable.

[0032] The elastic element is a torsion spring 31, of which there are two, each sleeved on one of the two connecting shafts 332. The upper free ends of the two torsion springs 31 extend towards each other and connect to form an upper elastic arm 311, and the lower free ends of the two torsion springs 31 extend towards each other and connect to form a lower elastic arm 312. The lower elastic arm 312 is fixed to the fixed base 32, and the upper elastic arm 311 abuts against the lower surface of the operating arm 33. This structural design allows the elastic force of the two torsion springs 31 to act more evenly on the operating arm 33, further improving the stability and reliability of the insertion part when inserted into the positioning hole 211. At the same time, the design of the upper elastic arm 311 and the lower elastic arm 312 also provides a more compact and stable structure for the entire elastic element, reducing deformation and wear of the elastic element during operation and extending its service life.

[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the seat frame 2 includes a seat 22, a support rod 23, an adjusting seat 24, and a connecting pipe 21 mentioned above. The support rod 23 is fixedly mounted on the bottom of the seat 22 to support the seat 22. The adjusting seat 24 is located between the support rod 23 and the connecting pipe 21 and is used to connect the non-circular sleeve 11. The adjusting seat 24 includes a load-bearing pipe 241 arranged along the front-rear direction of the frame 1 and a sliding seat 242 slidably mounted on the load-bearing pipe 241. The load-bearing pipe 241 is fixed to the upper end of the connecting pipe 21, and the load-bearing pipe 241 is provided with several limiting holes 2411. The support rod 23 is fixed to the sliding seat 242. The sliding seat 242 is provided with a limiting member 4 corresponding to the limiting hole 2411. The limiting member 4 has the same structure as the positioning member 3. The sliding seat 242 is provided with a through hole 2421 for the limiting member 4 to be inserted. The limiting member 4 is inserted into the limiting hole 2411 through the through hole 2421 to fix the support rod 23 to the load-bearing tube 241, thereby fixing the seat 22. This structural design realizes the position adjustment of the seat 22 in the front-back direction of the frame 1. Users can flexibly adjust the front-back position of the seat 22 according to their own physical conditions and riding habits, further improving the comfort and applicability of the exercise bike. At the same time, the limiting member 4 has the same structure as the positioning member 3, making the structure of the entire adjustment device more unified and coordinated, improving the overall consistency of the product. By setting several limiting holes 2411 on the load-bearing tube 241, the front-back adjustment of the seat 22 can be achieved.

[0034] The non-circular sleeve 11 can be a racetrack-shaped tube, a polygonal tube, or an elliptical tube, and the connecting tube 21 is fitted with the non-circular sleeve 11 with a clearance fit. By adopting a non-circular sleeve structure, the rotation of the connecting tube 21 within the non-circular sleeve 11 can be effectively prevented, thus ensuring the stability of the seat frame 2 during height adjustment. At the same time, the clearance fit design ensures that the connecting tube 21 can slide smoothly up and down within the non-circular sleeve 11, while also avoiding wobbling problems caused by an excessively loose fit, further improving the user experience of the exercise bike.

[0035] When adjusting the height of the seat cushion 22, press the end of the operating arm 33 away from the insertion part with your fingers or palm. Since the operating arm 33 is a lever structure with the hinge as the fulcrum, pressing the operating arm 33 will cause the insertion part to move upward, thereby disengaging from the positioning hole 211 on the connecting tube 21. At this time, the fixation between the connecting tube 21 and the non-circular sleeve 11 is released. Hold the seat cushion 22 or the seat cushion frame 2 with your hand and move the seat cushion 22 up and down until the desired suitable height is reached. After the seat cushion 22 has moved to the suitable height, release the operating arm 33. Under the action of the elastic element, the insertion part of the operating arm 33 will automatically move towards the positioning hole and re-insert into the positioning hole 211 on the connecting tube 21, thereby fixing the seat cushion 22 at the new height position.

[0036] When adjusting the seat cushion 22 forward and backward, press the limiting member 4 on the sliding seat 242 with your fingers or palm. The structure of the limiting member 4 is similar to that of the positioning member 3, also including an elastic member, a fixed seat, and an operating arm. Press the operating arm of the limiting member 4 to disengage its insertion part from the limiting hole 2411 on the load-bearing tube 241, releasing the fixation of the sliding seat 242. Hold the seat cushion 22 with your hand and move the seat cushion 22 back and forth until it reaches the desired position, then release the pressed limiting member 4. Under the action of the elastic member of the limiting member 4, the insertion part of the limiting member 4 will automatically move towards the limiting hole and re-insert into the limiting hole 2411 on the load-bearing tube 241, thereby fixing the seat cushion 22 in the new forward and backward position. Example 2

[0037] The difference between this embodiment and Embodiment 1 lies only in the structure of the elastic element. This embodiment provides another structure for the elastic element, as detailed below:

[0038] The elastic element is a torsion spring 31, of which there are two, each sleeved on the connecting shaft 332 of the two operating arms 33. Limiting grooves are provided on both side walls of the operating arms 33. One free end of each torsion spring 31 abuts against the fixed seat 32, and the other free end abuts against the corresponding limiting groove on the side of the operating arm 33. This design allows the two torsion springs 31 to provide more stable and reliable elastic support for the operating arms 33, ensuring that the insertion part can quickly and accurately insert into the positioning hole 211 when pressure is lost, further improving the stability and reliability of seat height adjustment. At the same time, the limiting groove design effectively restricts the position of the free ends of the torsion springs 31, preventing displacement of the torsion springs 31 during operation and improving the service life of the entire device. Example 3

[0039] The only difference between this embodiment and Embodiments 1 and 2 is the structure of the elastic element. This embodiment provides another structure for the elastic element, as detailed below:

[0040] The elastic element is a return spring, which and the insertion part are located on opposite sides of the hinge of the operating arm 33. One end of the return spring rests against the fixed base 32, and the other end rests against the lower surface of the operating arm 33. By using a return spring as the elastic element, stable elastic support can be provided for the operating arm 33, ensuring that the insertion part can be quickly and accurately inserted into the positioning hole 211 when pressure is lost. At the same time, the design of the return spring also makes the structure of the entire device simpler and more compact, reduces production costs, and improves market competitiveness.

[0041] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model 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 utility model.

[0042] The above provides a detailed description of the exercise bike with a multi-level adjustable seat provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A multi-position adjustable seat bicycle, comprising a frame and a seat frame, wherein the frame has a non-circular sleeve for connecting the seat frame, and the seat frame has a connecting tube that matches and slides into the non-circular sleeve, the connecting tube having a plurality of positioning holes along its length, characterized in that: The non-circular sleeve is provided with a positioning element, which includes an elastic element, a fixed seat fixed to the non-circular sleeve, and an operating arm hinged to the fixed seat. The operating arm forms a lever structure with the hinge as the fulcrum. One end of the operating arm has an insertion part that slides into the non-circular sleeve and can be inserted into any positioning hole. The elastic element is located between the fixed seat and the operating arm and always has an elastic force on the side of the operating arm away from the insertion part. When the end of the operating arm away from the insertion part is pressed, the insertion part of the operating arm moves upward, causing the insertion part to disengage from the positioning hole and release the fixation of the connecting tube. When the operating arm loses pressure, the insertion part is inserted downward into the positioning hole under the action of the elastic element to fix the connecting tube.

2. The exercise bike with a multi-level adjustable seat according to claim 1, characterized in that: The distance from the hinge of the operating arm to the insertion end is less than the distance from the hinge of the operating arm to the end furthest from the insertion end.

3. The exercise bike with a multi-level adjustable seat according to claim 1, characterized in that: One end of the operating arm is rotatably connected to a positioning pin, which is the insertion part. The non-circular sleeve is provided with an insertion hole, and the positioning pin is allowed to extend into the non-circular sleeve through the insertion hole. When the connecting tube slides, when the end of the positioning pin slides along the surface of the connecting tube to the positioning hole, the insertion part extends into the positioning hole under the action of the elastic element to limit the connecting tube.

4. The exercise bike with a multi-level adjustable seat according to claim 1, characterized in that: The fixed base is a U-shaped base body, and the operating arm has symmetrically arranged connecting shafts at both ends. The two side walls of the fixed base are provided with shaft holes corresponding to the two connecting shafts. The operating arm is hinged to the corresponding shaft holes on the fixed base through the connecting shafts on both sides.

5. The exercise bike with a multi-level adjustable seat according to claim 4, characterized in that: The elastic element is a torsion spring, and there are two torsion springs. The two torsion springs are respectively sleeved on two connecting shafts. Limiting grooves are provided on both sides of the operating arm. One free end of each of the two torsion springs abuts against the fixed seat, and the other free end abuts against the limiting groove on the corresponding side of the operating arm.

6. The exercise bike with a multi-level adjustable seat according to claim 4, characterized in that: The elastic element is a torsion spring, and there are two torsion springs. The two torsion springs are respectively sleeved on two connecting shafts, and the upper free ends of the two torsion springs extend towards each other and are connected to form an upper elastic arm. The lower free ends of the two torsion springs extend towards each other and are connected to form a lower elastic arm. The lower elastic arm is fixed on a fixed base, and the upper elastic arm abuts against the lower surface of the operating arm.

7. The exercise bike with a multi-level adjustable seat according to claim 1, characterized in that: The elastic element is a return spring. The return spring and the insertion part are located on both sides of the hinge of the operating arm. One end of the return spring abuts against the fixed seat, and the other end abuts against the lower surface of the operating arm.

8. The exercise bike with a multi-level adjustable seat according to claim 1, characterized in that: The seat frame includes a seat cushion, a support rod, an adjusting seat, and the connecting tube. The support rod is fixedly installed at the bottom of the seat cushion. The adjusting seat includes a load-bearing tube arranged along the front and rear direction of the frame and a sliding seat slidably installed on the load-bearing tube. The load-bearing tube is fixed at the upper end of the connecting tube and has several limiting holes. The support rod is fixed on the sliding seat, and the sliding seat has limiting members corresponding to the limiting holes. The limiting members and positioning members have the same structure.

9. The exercise bike with a multi-level adjustable seat according to any one of claims 1 to 8, characterized in that: The non-circular sleeve is a racetrack-shaped tube, a polygonal tube, or an elliptical tube, and the connecting tube is clearance-fitted with the non-circular sleeve.

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