Seat cushion front-back position adjusting structure of exercise bicycle

Abstract

The utility model discloses a cushion front-back position adjusting structure of an exercise bicycle. The cushion front-back position adjusting structure comprises a cushion, a supporting sleeve, an adjusting seat, an adjusting pipe, a first wedge block, a second wedge block, a screw rod and a rotary knob. The supporting sleeve is arranged on a frame of the spinning, the adjusting seat is horizontally arranged at the top of the supporting sleeve, a sliding channel is formed in the adjusting seat in the front-back direction, and the middle of the adjusting pipe penetrates through the sliding channel in a front-back sliding mode; the cushion is fixed at one end of the adjusting pipe, and the other end of the adjusting pipe is provided with a knob; an inner cavity is formed in the adjusting pipe, the first wedge block is arranged in the inner cavity in a front-back sliding mode, the screw rod is located in the inner cavity, one end of the screw rod is in threaded connection with the first wedge block, and the other end of the screw rod is connected with the rotary knob. The side wall of the adjusting pipe is provided with a mounting hole which is communicated with the inner cavity and the sliding channel, and the second wedge block is arranged in the mounting hole and is in wedge fit with the first wedge block; the knob is rotated to enable the first wedge block to move back and forth so as to push the second wedge block to lock or unlock the adjusting pipe, and adjustment is convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, in particular to a seat cushion front and rear position adjustment structure of a fitness bike. Background Art

[0002] Currently, there are many different fitness programs available, and spinning is a high-intensity exercise program. It improves cardiopulmonary function, helps with weight loss, strengthens leg muscles, and generally improves physical fitness. When riding an spinning bike, finding a comfortable riding position that suits you is crucial. Besides adjusting the seat height to facilitate proper pedaling for users of varying leg lengths, the position of the upper body gripping the handlebars also requires adjustment, making the fore-and-aft position of the seat crucial.

[0003] The seat cushion of an existing exercise bike has a complex structure for adjusting the front and rear position of the seat, which is inconvenient to adjust and has a limited adjustment range. For example, patent CN202654602U discloses a seat adjustment device for an exercise bike. The adjustment device includes a seat support rod, a guide rail is provided on the seat support rod, and a slider is slidingly provided in the guide rail. The seat cushion is mounted on the slider, and the front and rear position of the seat is adjusted by sliding the slider back and forth. The slider is locked by a screw. Since the position of the screw is fixed, the slider cannot be locked if it is separated from the screw, thereby limiting the front and rear adjustment range of the seat. Utility Model Content

[0004] The purpose of the utility model is to provide a front and rear position adjustment structure for a seat cushion of an exercise bike, which can infinitely adjust the position of the seat front and rear, has a wide adjustment range, and is convenient and quick to adjust.

[0005] To achieve the above-mentioned purpose, the solution of the present invention is: a structure for adjusting the front and rear position of a seat cushion of an exercise bike, comprising a seat cushion, a support sleeve, an adjustment seat, an adjustment tube, a first wedge, a second wedge, a screw and a knob;

[0006] The support sleeve is arranged on the frame of the spinning bike, the adjustment seat is horizontally arranged on the top of the support sleeve, a sliding channel is provided inside the adjustment seat along the front-to-back direction, and the middle portion of the adjustment tube is slidably arranged in the sliding channel;

[0007] The seat cushion is fixed to one end of the adjustment tube, and a knob is provided at the other end of the adjustment tube; an inner cavity is provided inside the adjustment tube, and the first wedge is slidably arranged in the inner cavity, and the screw is located inside the inner cavity, and one end of the screw is screwed to the first wedge, and the other end of the screw is connected to the knob;

[0008] The side wall of the adjusting tube is provided with a mounting hole connecting the inner cavity and the sliding channel. The second wedge block is arranged in the mounting hole and cooperates with the first wedge block obliquely. The knob is turned to move the first wedge block back and forth to push the second wedge block against the inner wall of the adjusting seat to lock the adjusting tube, or to push the second wedge block to loosen the inner wall of the adjusting seat to unlock the adjusting tube.

[0009] Furthermore, the second wedge block is located above the first wedge block, and the bottom surface of the second wedge block is wedge-matched with the top surface of the first wedge block. Turning the knob causes the first wedge block to move forward and backward to push the second wedge block upward to press against the inner wall of the adjustment seat, or to push the second wedge block downward to separate from the inner wall of the adjustment seat.

[0010] Furthermore, the top wall of the sliding channel is a horizontal plane, and the top surface of the second wedge block is a horizontal plane to match the top wall of the sliding channel.

[0011] Furthermore, a protrusion is provided on the middle portion of the top surface of the first wedge block along the front-to-back direction, and a groove is provided on the bottom of the second wedge block to cooperate with the protrusion.

[0012] Furthermore, a limiting slide is provided at the bottom of the inner cavity of the regulating tube along the front-to-back direction, and the bottom of the first wedge block is fitted on the limiting slide.

[0013] Furthermore, a vertical mounting tube is provided at one end of the adjustment tube, and the seat cushion is fixed on the mounting tube.

[0014] Furthermore, an L-shaped limit sleeve is provided at the other end of the adjusting tube, a step is provided at the middle of the screw, the limit sleeve is sleeved on the screw, and one end of the limit sleeve abuts against the step, the other end of the limit sleeve is fixed to the side wall of the other end of the adjusting tube, and the knob abuts against the limit sleeve.

[0015] Furthermore, gaskets are provided between both ends of the limiting sleeve and the step and the knob.

[0016] Furthermore, the outer diameter of the other end of the limiting sleeve is larger than the outer diameter of the adjusting tube, and is fixed to the side wall of the other end of the adjusting tube by screws.

[0017] Furthermore, a gear mark is provided on the top surface of the adjusting tube on one side of the mounting hole.

[0018] After adopting the above solution, the beneficial effects of the utility model are:

[0019] The utility model provides an adjustment seat at the top of the support sleeve, and a sliding channel is provided inside the adjustment seat along the front-to-back direction. The adjustment tube is slidably provided inside the sliding channel, and the seat cushion is fixed to one end of the adjustment tube. The adjustment tube slides back and forth in the sliding channel to adjust the front-to-back position of the seat cushion. Specifically, a knob is provided at the other end of the adjustment tube, and a screw and a first wedge are provided inside the adjustment tube. One end of the screw is screwed to the first wedge, and the other end is fixed to the knob. A mounting hole is provided on the side wall of the adjustment tube, and a second wedge is provided in the mounting hole to cooperate with the first wedge. Turning the knob can drive the first wedge to move back and forth, thereby pushing the second wedge to press against the inner wall of the adjustment seat, locking the adjustment tube and preventing the seat from moving back and forth. The first wedge can also push the second wedge to loosen the inner wall of the adjustment seat when moving back and forth, unlocking the adjustment tube. At this time, the adjustment tube can move back and forth in the sliding channel, thereby achieving front-to-back position adjustment of the seat.

[0020] Therefore, in the present invention, the seat cushion can be unlocked or locked by rotating the knob, and the adjustment is convenient and quick. During adjustment, the adjustment tube drives the second wedge block to slide back and forth. The second wedge block can slide to any position in the sliding channel and can be locked as long as it does not leave the sliding channel. It is stepless adjustment with a wide range of adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of the utility model seat installed on a spinning bike;

[0022] Figure 2 It is a three-dimensional schematic diagram of the adjustment structure of the utility model;

[0023] Figure 3 It is a cross-sectional view of the utility model in a locked state;

[0024] Figure 4 for Figure 3 A partial enlarged view of the middle part;

[0025] Figure 5 It is a cross-sectional view of the utility model in the unlocked state;

[0026] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0027] Figure 7 This is an exploded view of the parts of the present utility model;

[0028] Figure 8 This is a schematic structural diagram of the first wedge of the present invention;

[0029] Figure 9 This is a schematic structural diagram of the regulating tube of the utility model.

[0030] Description of labels:

[0031] 1. Seat cushion; 2. Support sleeve; 3. Adjustment seat; 31. Sliding channel; 4. Adjustment tube; 41. Inner cavity; 42. Mounting hole; 43. Limit sleeve; 44. Gasket; 45. Gear position mark; 46. Limit slide; 5. First wedge; 51. Protrusion; 6. Second wedge; 61. Groove; 7. Screw; 71. Step; 8. Knob; 9. Mounting tube; 10. Frame. DETAILED DESCRIPTION

[0032] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figure 1-9 As shown, the utility model provides a front and rear position adjustment structure of a seat cushion of an exercise bike, comprising a seat cushion 1, a support sleeve 2, an adjustment seat 3, an adjustment tube 4, a first wedge 5, a second wedge 6, a screw 7 and a knob 8; the support sleeve 2 is fixedly arranged on the frame 10 of the exercise bike, the adjustment seat 3 is horizontally arranged on the top of the support sleeve 2, and the adjustment seat 3 is specifically arranged horizontally along the front and rear direction, and a sliding channel 31 is provided inside the adjustment seat 3 along the front and rear direction, and the middle part of the adjustment tube 4 is slidably penetrated in the sliding channel 31, and the seat cushion 1 is fixed to one end of the adjustment tube 4, and the adjustment tube 4 slides back and forth to drive the seat cushion 1 to move back and forth, thereby realizing the position adjustment of the seat cushion 1.

[0034] To adjust the position of the seat cushion 1 , a structure for locking the adjustment tube 4 is also required. The utility model achieves locking and unlocking of the adjustment tube 4 through a screw 7 , a knob 8 , a first wedge 5 and a second wedge 6 . Specifically, a knob 8 is provided at the other end of the adjusting tube 4, which can only be rotated but cannot move forward and backward. An inner cavity 41 is provided inside the adjusting tube 4, and the first wedge block 5 is slidingly arranged in the inner cavity 41 back and forth. The screw 7 is located inside the inner cavity 41, and one end of the screw 7 is screwed to the first wedge block 5, and the other end of the screw 7 is connected to the knob 8; the side wall of the adjusting tube 4 is provided with a mounting hole 42 connecting the inner cavity 41 and the sliding channel 31, and the second wedge block 6 is arranged in the mounting hole 42 and wedge-matched with the first wedge block 5; rotating the knob 8 can drive the first wedge block 5 to move forward and backward, and the first wedge block 5 can push the second wedge block 6 to press against the inner wall of the adjusting seat 3, so that the adjusting tube 4 is clamped by the first wedge block 5 and the adjusting seat 3 and cannot move, and the adjusting tube 4 and the seat cushion 1 are locked. The first wedge block 5 can also push the second wedge block 6 to loosen the inner wall of the adjusting seat 3 when it moves forward and backward. At this time, the adjusting tube 4 is unlocked, and the adjusting tube 4 can be moved forward and backward to adjust the front and rear position of the seat cushion 1. In addition, one end of the screw 7 and the adjusting tube 4 can be the front end or the rear end, which is not limited in the present invention, but is preferably the front end, and the knob 8 is set at the rear end of the adjusting tube 4 to facilitate user adjustment.

[0035] In the present invention, the seat cushion 1 can be unlocked or locked by rotating the knob 8, and the adjustment is convenient and quick. During the adjustment, the adjustment tube 4 drives the second wedge 6 to slide back and forth. The second wedge 6 can slide to any position in the sliding channel 31 and can be locked as long as it does not leave the sliding channel 31. It is a stepless adjustment with a wide range of adjustment. In addition, Figure 1 As shown, the front-rear position adjustment structure of the present invention is not only arranged on the rear side of the frame 10 to adjust the front-rear position of the seat cushion 1, but can also be arranged on the front side of the frame 10 to adjust the front-rear position of the armrest.

[0036] Key references Figure 3-6 , the second wedge block 6 is located above the first wedge block 5, and the bottom surface of the second wedge block 6 is in an oblique wedge fit with the top surface of the first wedge block 5, that is, the bottom surface of the second wedge block 6 and the top surface of the first wedge block 5 are inclined surfaces of oblique wedge fit. When the knob 8 is turned to move the first wedge block 5 back and forth, the first wedge block 5 will push the second wedge block 6 to move upward to press against the inner wall of the adjustment seat 3, or push the second wedge block 6 to move downward to separate from the inner wall of the adjustment seat 3. Of course, the second wedge block 6 can also be set below the first wedge block 5, and the first wedge block 5 can push the second wedge 6 to move downward to press against the inner wall of the adjustment seat 3, or loosen the inner wall of the adjustment seat 3. However, the second wedge block 6 is preferably set above the first wedge block 5. When unlocked, the second wedge block 6 does not contact the first wedge block 5, which can reduce the wear of the second wedge block 6 and the inner wall of the adjustment seat 3.

[0037] Key references Figure 7-9 The top wall of the sliding channel 31 is a horizontal plane, and the top surface of the second wedge 6 is a horizontal plane that mates with the top wall of the sliding channel 31. The tight fit between the two planes further secures the locking of the adjustment tube 4. Furthermore, the flat top wall of the sliding channel 31 also restricts axial rotation of the adjustment tube 4. Furthermore, a limiting slide 46 is provided along the front-to-back direction at the bottom of the inner cavity 41 of the adjustment tube 4. The bottom of the first wedge 5 mates with the limiting slide 46. The limiting slide 46 facilitates the sliding of the first wedge 5 while also restricting its circumferential rotation.

[0038] Key references Figure 7 The top surface of the first wedge block 5 is provided with a protrusion 51 along the front-to-back direction, and the bottom of the second wedge block 6 is provided with a groove 61 that cooperates with the protrusion 51, so that the second wedge block 6 can only move forward and backward relative to the first wedge block 5. The mounting hole 42 can limit the left and right rotation of the second wedge block 6. Therefore, the groove 61 cooperates with the protrusion 51 to further limit the circumferential rotation of the first wedge block 5. Specifically, the protrusion 51 is provided in the middle of the top surface of the first wedge block 5, with inclined surfaces on both sides of the protrusion 51. The bottom of the second wedge block 6 is provided with inclined surfaces on both sides of the groove 61. These two inclined surfaces abut to achieve an oblique wedge fit.

[0039] As a preferred embodiment, a vertical mounting tube 9 can be provided at one end of the adjustment tube 4 , and the seat cushion 1 is fixed on the top of the mounting tube 9 so that the seat cushion 1 does not interfere with the arrangement of the adjustment seat 3 .

[0040] Key references Figure 3-4 The other end of the adjusting tube 4 is provided with an L-shaped limiting sleeve 43. The middle portion of the screw rod 7 is provided with a step 71. The limiting sleeve 43 is sleeved on the screw rod 7, with one end of the limiting sleeve 43 abutting against the step 71. The other end of the limiting sleeve 43 is fixed to the side wall of the other end of the adjusting tube 4. The knob 8 abuts against the limiting sleeve 43. Since the limiting sleeve 43 is fixed to the other end of the adjusting tube 4, the two ends of the limiting sleeve 43 abut against the step 71 and the knob 8, respectively, preventing the screw rod 7 from moving forward and backward, thereby allowing the first wedge 5 to move forward and backward. In addition, gaskets 44 are provided between the two ends of the limiting sleeve 43, the step 71, and the knob 8 to reduce friction between the knob 8, the screw rod 7, and the limiting sleeve 43.

[0041] Specifically, one end of the limiting sleeve 43 extends into the inner cavity 41 of the adjusting tube 4 to be sleeved on the screw 7, and the outer diameter of the other end of the limiting sleeve 43 is larger than the outer diameter of the adjusting tube 4, and fits against the side wall of the other end of the adjusting tube 4, so that the limiting sleeve 43 is L-shaped, and the other end of the limiting sleeve 43 and the side wall of the other end of the adjusting tube 4 can be fixed by screws.

[0042] Key references Figure 7 The top surface of the adjusting tube 4 is provided with a gear mark 45 on one side of the mounting hole 42. The gear mark 45 can remind the user to record the seat gear that suits him / her, which is convenient for consumers to use.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A structure for adjusting the front and rear position of a seat cushion of an exercise bike, characterized in that: It includes a seat cushion, a support sleeve, an adjustment seat, an adjustment tube, a first wedge, a second wedge, a screw and a knob; The support sleeve is arranged on the frame of the spinning bike, the adjustment seat is horizontally arranged on the top of the support sleeve, a sliding channel is provided inside the adjustment seat along the front-to-back direction, and the middle portion of the adjustment tube is slidably arranged in the sliding channel; The seat cushion is fixed to one end of the adjustment tube, and a knob is provided at the other end of the adjustment tube; an inner cavity is provided inside the adjustment tube, and the first wedge is slidably arranged in the inner cavity, and the screw is located inside the inner cavity, and one end of the screw is screwed to the first wedge, and the other end of the screw is connected to the knob; The side wall of the adjusting tube is provided with a mounting hole connecting the inner cavity and the sliding channel. The second wedge block is arranged in the mounting hole and cooperates with the first wedge block obliquely. The knob is turned to move the first wedge block back and forth to push the second wedge block against the inner wall of the adjusting seat to lock the adjusting tube, or to push the second wedge block to loosen the inner wall of the adjusting seat to unlock the adjusting tube.

2. The seat cushion front-to-back position adjustment structure of an exercise bike according to claim 1, characterized in that: The second wedge block is located above the first wedge block, and the bottom surface of the second wedge block is wedge-matched with the top surface of the first wedge block. Turning the knob causes the first wedge block to move forward and backward to push the second wedge block upward to press against the inner wall of the adjustment seat, or to push the second wedge block downward to separate from the inner wall of the adjustment seat.

3. The seat front and rear position adjustment structure of an exercise bike according to claim 2, characterized in that: The top wall of the sliding channel is a horizontal plane, and the top surface of the second wedge is a horizontal plane to match the top wall of the sliding channel.

4. The seat front and rear position adjustment structure of an exercise bike according to claim 3, characterized in that: A protrusion is provided on the middle portion of the top surface of the first wedge block along the front-to-back direction, and a groove is provided on the bottom of the second wedge block to match the protrusion.

5. The seat front and rear position adjustment structure of an exercise bike according to claim 1, characterized in that: A limiting slide is provided at the bottom of the inner cavity of the regulating tube along the front-to-back direction, and the bottom of the first wedge is fitted on the limiting slide.

6. The front-back position adjustment structure of the seat of the exercise bike according to claim 1, characterized in that: A vertical mounting tube is provided at one end of the adjusting tube, and the seat cushion is fixed on the mounting tube.

7. The front-back position adjustment structure of the seat of the exercise bike according to claim 1, characterized in that: An L-shaped limiting sleeve is provided at the other end of the adjusting tube, and a step is provided at the middle of the screw rod. The limiting sleeve is sleeved on the screw rod, and one end of the limiting sleeve abuts against the step, and the other end of the limiting sleeve is fixed to the side wall of the other end of the adjusting tube, and the knob abuts against the limiting sleeve.

8. The front-back position adjustment structure of the seat of the exercise bike according to claim 7, characterized in that: Gaskets are provided between the two ends of the limiting sleeve and the steps and the knob.

9. The seat front-back position adjustment structure of an exercise bike according to claim 7, characterized in that: The outer diameter of the other end of the limiting sleeve is larger than the outer diameter of the adjusting tube, and the limiting sleeve is fixed to the side wall of the other end of the adjusting tube by screws.

10. The front-back position adjustment structure of the seat of the fitness bike according to claim 1, characterized in that: The top surface of the regulating tube is provided with a gear mark on one side of the mounting hole.

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