CN109200568B - Resistance Sensing Mechanism for Fitness Equipment - Google Patents

Abstract

A resistance sensing mechanism of fitness equipment includes: a resistance adjustment unit and a sensing unit, wherein the resistance adjustment unit has an adjustment seat, a fixed sleeve located above the adjustment seat, and an adjustment rod arranged on the fixed sleeve, wherein the adjustment rod has a first threaded section and a second threaded section, and the adjustment seat is screwed to the first threaded section; the sensing unit has a second screw seat screwed to the second threaded section, a sensing element and a sensed element, wherein the sensing element is arranged at one of the adjustment seat and the second screw seat, and the sensed element is arranged at the other of the adjustment seat and the second screw seat. Thus, the distance between the sensing element and the sensed element can be changed by the relative movement between the adjustment seat and the second screw seat, so that the sensing element generates a corresponding sensing signal.

Description

Resistance Sensing Mechanism for Fitness Equipment

technical field

The invention relates to fitness equipment, in particular to a resistance sensing mechanism of the fitness equipment.

Background technique

In order to allow users to adjust the difficulty of operation according to their own training needs, general fitness equipment is usually equipped with a resistance adjuster, so that users can apply different degrees of resistance to the flywheel or other similar components through the resistance adjuster. Resistance, while adjusting the resistance, in order to allow the user to accurately grasp the resistance applied by the resistance adjuster, some fitness equipment will be equipped with a sensing device, which is mainly used to measure the resistance applied by the resistance adjuster. Sensing is carried out so that users can adjust according to the situation at any time.

As far as the prior art related to the sensing device is concerned, the torque sensing device disclosed in Taiwan Patent No. M435942 mainly sets the main sensing element and the sensed element on the fixing member and the position adjusting member, respectively, and adjusts the torque through rotation. The rod can change the relative distance between the position adjusting member and the fixing member, so that the main sensing element can generate a corresponding sensing signal due to the change in the distance between the main sensing element and the sensed element. In the aforementioned patent case, only one of the main sensing element and the sensed element can move, and the other is fixed. Since these structures are unilateral action structures, the main sensing element and the sensed element are The positional variation between components is not obvious, which results in limited sensitivity of the sensing signal, and it is obvious that there is still room for improvement.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a resistance sensing mechanism for fitness equipment, which can reduce the action stroke and the sensing time, and effectively improve the sensing sensitivity.

In order to achieve the above object, the resistance sensing mechanism provided by the present invention includes a resistance adjusting unit and a sensing unit. The resistance adjustment unit has an adjustment base, a fixed sleeve and an adjustment rod. The adjustment base includes an adjustment base and a first screw base. The adjustment base is arranged on the periphery of a flywheel and one end of the adjustment base Pivoted on a frame, the fixing sleeve is arranged on the frame and located above the adjusting base, the adjusting rod can be rotatably passed through the fixing sleeve, and the adjusting rod has a first threaded section and a second thread segment, the first thread segment and the second thread segment have opposite directions of rotation, the first thread base is screwed to the first thread segment of the adjustment rod and is pivotally connected to the adjustment base; and The sensing unit has a second screw base, a sensing element, and a sensed element. The second screw base is screwed to the second thread segment of the adjusting rod of the resistance adjusting unit, and the sensing element is located in One of the adjustment seat of the resistance adjustment unit and the second screw seat of the sensing unit, the sensed element is disposed on the other one of the adjustment seat of the resistance adjustment unit and the second screw seat of the sensing unit , the sensing element and the sensed element correspond to each other.

It can be seen from the above that the resistance sensing mechanism of the present invention utilizes the arrangement of the first and second thread segments with different rotation directions, so that the adjustment seat and the second thread seat can move relative to each other, so that the sensing element and the being The sensing elements can approach or move away from each other at the same time, so as to achieve the effects of reducing the motion stroke, shortening the sensing time, and improving the sensing sensitivity.

Optionally, the sensing element is arranged on one of the adjustment base of the adjustment base and the second screw base of the sensing unit, and the sensed element is arranged at the adjustment base of the adjustment base and the sensing element The other one of the second screw base of the unit.

Optionally, the sensing element is arranged on one of the first screw seat of the adjustment seat and the second screw seat of the sensing unit, and the sensed element is arranged on the first screw seat of the adjustment seat and the second screw seat of the sensing unit. The other one of the second screw bases of the sensing unit.

Optionally, the first screw base has a seat body and a carrier frame disposed on the front end surface of the seat body, and the carrier frame is used to carry the sensing element or the sensed element.

Optionally, the resistance sensing mechanism includes a guide rod, the guide rod is adjacent to the adjustment rod, the second screw base is slidably abutted against the guide rod, when the adjustment rod rotates, The second screw base is driven by the second thread segment of the adjustment rod and guided by the guide rod, and moves along the axial direction of the adjustment rod.

Optionally, the guide rod is fixed on the frame or the fixed sleeve of the resistance adjusting unit.

Optionally, the second screw base has a guide hole penetrating through the top surface and the bottom surface, and the guide rod is slidably inserted in the guide hole.

Optionally, the axial direction of the guide rod is parallel to the axial direction of the adjustment rod.

Optionally, the second screw base has a front end surface and a guide groove, the guide groove is recessed backward from the front end surface, and penetrates the top surface and the bottom surface of the second screw base at the same time, and the guide rod is slidable. Displaced and accommodated in the guide groove.

Optionally, the wall between two sides of the guide groove abuts against the guide rod.

Optionally, the diameter of the first thread segment is smaller than the diameter of the second thread segment.

The detailed structure, characteristics, assembly or usage of the resistance sensing mechanism provided by the present invention will be described in the detailed description of the following embodiments. However, those skilled in the art should understand that these detailed descriptions and specific embodiments for implementing the present invention are only used to illustrate the present invention, but not to limit the scope of the patent application of the present invention.

Description of drawings

1 is a perspective view of a first embodiment of the present invention;

FIG. 2 is a partial perspective exploded view of the first embodiment of the present invention;

3 is a partial plan view of the first embodiment of the present invention, mainly showing a state in which the sensing element and the sensed element are far away from each other;

Fig. 4 is similar to Fig. 3, and mainly shows the state in which the sensing element and the sensed element are close to each other;

FIG. 5 is a partial perspective exploded view of the second embodiment of the present invention;

6 is a perspective view of a third embodiment of the present invention;

FIG. 7 is a partial perspective exploded view of the third embodiment of the present invention;

FIG. 8 is a partial plan view of the third embodiment of the present invention, mainly showing a state in which the sensing element and the sensed element are far away from each other;

Fig. 9 is similar to Fig. 8 and mainly shows the state in which the sensing element and the sensed element are close to each other;

10 is a partial exploded perspective view of a fourth embodiment of the present invention.

【Symbol Description】

first embodiment

10 Resistance Sensing Mechanism 12 Frame 14 Flywheel

20 resistance adjustment unit

22 Adjustment base 23 Adjustment base 24 Magnetic parts

26 Fixed sleeve 28 Adjusting rod 282 Knob

284 screw 286 first thread segment 288 second thread segment

30 first screw seat

32 The first pivot 34 The second pivot 36 The linkage rod

40 sensing units

42 Second screw seat 422 Tap hole 424 Guide hole

44 sensing element 46 sensed element

50 guide rod

Second Embodiment

10A resistance sensing mechanism

28A adjustment lever

42A Second screw seat 444A Guide groove 426A Front end face

50A guide rod

Third Embodiment

10B Resistance Sensing Mechanism 12B Frame 14B Flywheel

20B resistance adjustment unit

22B Adjustment Base 23B Adjustment Base 24B Magnetic Parts

26B Fixed sleeve 28B Adjusting rod 282B Knob

284B screw 286B first thread segment 288B second thread segment

30B first screw seat 31B seat body

32B First pivot 34B Second pivot 36B Link rod

38B carrier

40B sensing unit

42B second screw seat 422B tap hole 424B guide hole

44B sensing element 46B sensed element

50B guide rod

Fourth Embodiment

10C resistance sensing mechanism

28C adjustment lever

42C Second screw seat 444C Guide groove 426C Front end face

50C guide rod

Detailed ways

In order to illustrate the technical features of the present invention in detail, the following embodiments are now listed and described in conjunction with the accompanying drawings, wherein:

Please refer to FIG. 1 first. The fitness equipment shown in the figure includes a frame 12 and a flywheel 14 rotatably mounted on the frame 12 . Please refer to FIGS. 1 to 4 again. A resistance sensing mechanism 10 provided by the first embodiment of the present invention includes a resistance adjusting unit 20 , a sensing unit 40 and a guide rod 50 , wherein:

The resistance adjusting unit 20 has an adjusting seat 22 , two opposite magnetic parts 24 , a fixing sleeve 26 , and an adjusting rod 28 .

The adjusting base 22 has an adjusting base 23 and a first screw base 30 . The adjustment base 23 is disposed on the periphery of the flywheel 14 and one end of the adjustment base 23 is pivoted to the frame 12 ; the two magnetic members 24 are respectively disposed on the inner side of the adjustment base 23 and are connected with the flywheel 14 maintains a predetermined distance; the fixing sleeve 26 is arranged on the frame 12 and is located above the adjusting base 23; the adjusting rod 28 has a knob 282 and a screw 284 connected to the knob 282, the screw 284 can be originally The screw rod 284 has a first thread segment 286 and a second thread segment 288, and the first thread segment 286 and the second thread segment 288 have opposite directions of rotation; The first screw base 30 is screwed to the first thread segment 286 of the screw rod 284 of the adjustment rod 28 and is pivotally connected to the adjustment base 23 ; in this embodiment, the first screw base 30 further includes two No. A pivot shaft 32 , two second pivot shafts 34 and two linkage rods 36 , one end of each linkage rod 36 is pivoted on two opposite sides of the first screw base 30 through the first pivot shaft 32 , respectively, The other ends of the linkage rods 36 are respectively pivoted to two opposite outer sides of the adjustment base 23 through the second pivot shaft 34 .

The sensing unit 40 has a second screw base 42 , a sensing element 44 , and a sensed element 46 .

The second screw base 42 has a screw hole 422 , the screw hole 422 penetrates the top surface and the bottom surface of the second screw base 42 , the second screw base 42 is screwed to the resistance adjustment unit 20 through the screw hole 422 for adjustment The second threaded section 288 of the rod 28 ; the sensing element 44 is disposed on one of the top surface of the adjustment base 23 of the adjustment base 22 of the resistance adjustment unit 20 and the bottom surface of the second screw base 42 of the sensing unit 40 The sensed element 46 is disposed at another position between the top surface of the adjustment base 23 of the adjustment base 22 of the resistance adjustment unit 20 and the bottom surface of the second screw base 42 of the sensing unit 40 . That is to say, if the sensing element 44 is disposed on the top surface of the adjustment base 23, the sensed element 46 is disposed on the bottom surface of the second screw base 42, if the sensing element 44 is disposed on the bottom surface of the second screw base 42 On the bottom surface of the second screw base 42 , the sensed element 46 is disposed on the top surface of the adjustment base 23 . However, no matter which method is used, the sensed element 44 and the sensed element 46 must be located between the sensing element 44 and the sensed element 46 . To correspond to each other, in implementation, the sensing element may be a Hall sensor, and the sensed element may be a magnet. In addition, in practice, the diameter of the first thread segment 286 of the screw rod 284 is smaller than the diameter of the second thread segment 288 of the screw rod 284 , so that the second screw seat 42 can be easily assembled on the second thread segment of the screw rod 284 288.

The guide rod 50 is adjacent to the screw rod 284 of the adjustment rod 28 , the second screw base 42 is slidably abutted against the guide rod 50 , when the adjustment rod 28 is forced to rotate, the second screw The seat 42 is driven by the second thread segment 288 of the screw 284 of the adjustment rod 28 and guided by the guide rod 50 to move up and down along the axial direction of the adjustment rod 28 . In implementation, the guide rod 50 is fixed on the fixing sleeve 26 of the resistance adjustment unit 20, but the guide rod 50 can also be fixed on the frame 12 according to actual needs (not shown in the figure). shown), in addition, in this embodiment, the second screw base 42 also has a guide hole 424 penetrating the top surface and the bottom surface, and the guide rod 50 is slidably inserted in the guide hole 424, And two opposite hole walls of the guide hole 424 abut against the guide rod 50 . Therefore, when the adjustment rod 28 is forced to rotate, the second screw base 42 can only move along the axial direction of the adjustment rod 28 through the matching relationship between the guide hole 424 and the guide rod 50 , but not It pivots about the axial direction of the adjustment rod 28 . In some embodiments, the axial direction of the guide rod 50 can also be parallel to the axial direction of the adjustment rod 28 , and the inner diameter of the guide hole 424 is substantially equal to the outer diameter of the guide rod 50 , but the actual structure is different. Not limited to this.

The structure of the first embodiment of the present invention has been described above. Next, the use state and effect of the first embodiment will be described.

Please refer to FIGS. 1 , 3 and 4 again, when a user turns the knob 282 of the adjusting rod 28 , the adjusting rod 28 will drive the first and second thread segments 286 , 288 of the screw 284 of the adjusting rod 28 respectively. The screw base 30 and the second screw base 42 are displaced up and down along the axial direction of the adjustment rod 28 . During the displacement process of the first screw base 30 , the first screw base 30 will move through the two linkage rods 36 . The adjusting base 23 is driven to deflect relative to the flywheel 14 , so that the adjusting base 23 can utilize the change of the magnetic flux between the two magnetic members 24 to provide a resistance effect to the flywheel 14 when the adjusting base 23 is deflected relative to the flywheel 14 . Since the first and second thread segments 286 and 288 have opposite directions of rotation, the first and second screw seats 30 and 42 are driven by the adjusting rod 28 to face each other along the axial direction of the screw rod 284 . move towards or away from each other, so the adjustment base 23 and the second screw base 42 will move towards or away from each other under the driving of the first screw base 30, so that the sensing element 44 and the The distance between the sensing elements 46 can be changed by the relative action of the adjusting base 23 and the second screw base 42. Once the distance between the two is changed, the sensing element 44 can A corresponding sensing signal is generated to a control panel (not shown in the figure), and the user can know the change of the resistance according to the information displayed on the control panel.

To sum up, the resistance sensing mechanism 10 of the first embodiment of the present invention utilizes the arrangement of the first and second thread segments 286 and 288 with different rotation directions, so that the adjustment base 23 can receive the first thread seat 30 . is driven to produce relative movement with the second screw base 42, so that the sensing element 44 and the sensed element 46 can approach or move away from each other at the same time. The first embodiment of the invention can effectively improve the sensitivity of sensing.

Please refer to FIG. 5 again, a resistance sensing mechanism 10A provided by the second embodiment of the present invention is mainly similar to the first embodiment disclosed above, and the differences are:

The second screw base 42A has a front end surface 426A and a guide groove 444A. The guide groove 444A is recessed rearward from the front end surface 426A and penetrates both the top and bottom surfaces of the second screw base 42A. The rod 50A is slidably accommodated in the guide groove 444A, and the walls between the two sides of the guide groove 444A abut against the guide rod 50A. Although this structure is slightly different from the structure of the guide hole 424 of the first embodiment disclosed above, it can also make the second screw seat 42A in the matching relationship between the guide groove 444A and the guide rod 50A. During the forced rotation of the adjusting rod 28A, it can only move along the axial direction of the adjusting rod 28A, and will not pivot around the axial direction of the adjusting rod 28A.

The rest of the structure and the effects that can be achieved in the second embodiment are generally the same as those in the first embodiment disclosed above, and will not be repeated here.

Please refer to FIGS. 6 to 9 again for a third embodiment of the present invention. The fitness equipment shown in FIG. 6 includes a frame 12B and a flywheel 14B rotatably mounted on the frame 12B. Please refer to FIGS. 6 to 9 again. A resistance sensing mechanism 10B provided by the third embodiment of the present invention includes a resistance adjusting unit 20B, a sensing unit 40B and a guide rod 50B, wherein:

The resistance adjusting unit 20B has an adjusting seat 22B, two opposite magnetic parts 24B, a fixing sleeve 26B, and an adjusting rod 28B.

The adjusting base 22B includes an adjusting base 23B and a first screw base 30B. The adjusting base 23B is disposed on the periphery of the flywheel 14B and one end of the adjusting base 23B is pivoted to the frame 12B; the two magnetic The parts 24B are respectively arranged on the inner side of the adjustment base 23B and keep a predetermined distance from the flywheel 14B; the fixing sleeve 26B is arranged on the frame 12B and is located above the adjustment base 23B; the adjustment rod 28B has A knob 282B and a screw 284B connected to the knob 282B, the screw 284B can be rotatably inserted in the fixing sleeve 26B in place, the screw 284B has a first thread segment 286B and a second thread segment 288B, the The first thread segment 286B and the second thread segment 288B have opposite directions of rotation; the first thread base 30B is screwed to the first thread segment 286B of the screw 284B of the adjustment rod 28B and is pivotally connected to the adjustment base 23B; In this embodiment, the first screw base 30B further includes a base 31B, two first pivot shafts 32B, two second pivot shafts 34B, two linkage rods 36B, and a carrying frame 38B. One end of each linking rod 36B is pivoted on two opposite sides of the seat body 31B of the first screw base 30B respectively through the first pivot shaft 32B, and the other end of each linking rod 36B is pivoted through the second pivot shaft 34B respectively On two opposite outer sides of the adjustment base 23B, the carrier 38B is disposed on the front end of the base.

The sensing unit 40B has a second screw base 42B, a sensing element 44B, and a sensed element 46B.

The second screw base 42B has a screw hole 422B, the screw hole 422B penetrates the top surface and the bottom surface of the second screw base 42B, and the second screw base 42B is screwed to the resistance adjustment unit 20B through the screw hole 422B for adjustment The second threaded segment 288B of the rod 28B; the sensing element 44B is disposed between the carrier 38B of the first screw base 30B of the adjustment base 22B of the resistance adjusting unit 20B and the bottom surface of the second screw base 42B of the sensing unit 40B In one of the positions, the sensed element 46B is disposed at another position on the bottom surface of the carrier 38B of the first screw base 30B of the adjustment base 22B of the resistance adjusting unit 20B and the bottom surface of the second screw base 42B of the sensing unit 40B. That is to say, if the sensing element 44B is disposed on the carrier 38B, the sensed element 46B is disposed on the bottom surface of the second screw base 42B, if the sensing element 44B is disposed on the second screw base On the bottom surface of 42B, the sensed element 46B is arranged on the bearing seat 38B. However, no matter which method is used, the sensing element 44B and the sensed element 46B must correspond to each other. The sensing element can be a Hall sensor, and the sensed element can be a magnet. In addition, in practice, the diameter of the first thread segment 286B of the screw rod 284B is smaller than the diameter of the second thread segment 288B of the screw rod 284B, so that the second screw seat 42B can be conveniently assembled on the second thread segment of the screw rod 284B 288B.

The guide rod 50B is adjacent to the screw 284B of the adjustment rod 28B, and the second screw base 42B is slidably abutted against the guide rod 50B. When the adjustment rod 28B is forced to rotate, the second screw The seat 42B is driven by the second thread segment 288B of the screw 284B of the adjusting rod 28B and guided by the guide rod 50B, and moves up and down along the axial direction of the adjusting rod 28B. In practice, the guide rod 50B is fixed on the fixing sleeve 26B of the resistance adjustment unit 20B, but the guide rod 50B can also be fixed on the frame 12B according to actual needs (not shown in the figure). shown), in addition, in this embodiment, the second screw base 42B also has a guide hole 424B penetrating the top surface and the bottom surface, and the guide rod 50B is slidably inserted in the guide hole 424B, And two opposite hole walls of the guide hole 424B abut against the guide rod 50B. Therefore, when the adjustment rod 28B is forced to rotate, the second screw seat 42B can only move along the axial direction of the adjustment rod 28B through the matching relationship between the guide hole 424B and the guide rod 50B, instead of It pivots about the axial direction of the adjustment rod 28B. In some embodiments, the axial direction of the guide rod 50B can also be parallel to the axial direction of the adjustment rod 28B, and the inner diameter of the guide hole 424B is substantially equal to the outer diameter of the guide rod 50B, but the actual structure is different. Not limited to this.

The structure of the third embodiment of the present invention has been described above. Next, the use state and effect of the third embodiment will be described.

Please refer to FIGS. 6 , 8 and 9 again, when a user turns the knob 282B of the adjustment rod 28B, the adjustment rod 28B will drive the first and second thread segments 286B and 288B of the screw rod 284B respectively. The screw base 30B and the second screw base 42B are displaced up and down along the axial direction of the adjustment rod 28B. During the displacement process of the first screw base 30B, the first screw base 30B will move through the two linkage rods 36B. The adjusting base 23B is driven to deflect relative to the flywheel 14B, so that when the adjusting base 23B is deflected relative to the flywheel 14B, the change of the magnetic flux between the two magnetic members 24B can provide resistance to the flywheel 14B. Since the first and second thread segments 286B, 288B have opposite directions of rotation, the first and second screw seats 30B, 42B will move along the axial direction of the screw 284B under the driving of the adjusting rod 28B The relative movement moves closer to or away from each other, thereby driving the sensing element 44B and the sensed element 46B to approach or move away from each other along the axial direction of the screw 284B. Once the sensing element 44B and the sensed element 46B If the distance between them changes, the sensing element 44B can generate a corresponding sensing signal to a control panel (not shown in the figure), and the user can know the change of the resistance according to the information displayed on the control panel. Happening.

To sum up, the resistance sensing mechanism 10B of the third embodiment of the present invention utilizes the arrangement of the first and second thread segments 286B and 288B with different rotation directions, so that the sensing element 44B and the sensed element 46B are simultaneously Moving along the axial direction of the screw 284B, since the position between the sensing element 44B and the sensed element 46B changes linearly, rather than changing in an arc-shaped trajectory, in addition to effectively improving the sensing It can also effectively reduce the production defect rate caused by the position difference of the adjustment seat during manufacture.

Please refer to FIG. 10 again. A resistance sensing mechanism 10C provided by the fourth embodiment of the present invention is mainly similar to that of the third embodiment disclosed above, except that:

The second screw base 42C has a front end surface 426C and a guide groove 444C. The guide groove 444C is recessed rearward from the front end surface 426C and penetrates both the top and bottom surfaces of the second screw base 42C. The rod 50C is slidably accommodated in the guide groove 444C, and the walls between the two sides of the guide groove 444C abut against the guide rod 50C. Although this structure is slightly different from the structure of the guide hole 424B of the third embodiment disclosed above, it can also make the second screw seat 42C in the same position through the matching relationship between the guide groove 444C and the guide rod 50C. During the forced rotation of the adjusting rod 28C, it can only move along the axial direction of the adjusting rod 28C, and will not pivot around the axial direction of the adjusting rod 28C.

The rest of the structure and the effects that can be achieved in the fourth embodiment are generally the same as those in the third embodiment disclosed above, and will not be repeated here.

Finally, it must be reiterated that the constituent elements disclosed in the foregoing embodiments of the present invention are merely illustrative, and are not intended to limit the scope of the present invention. Any simple structural modifications or changes that do not exceed the spirit of the present invention, or Replacement with other equivalent elements should still fall within the scope covered by the claims of the present invention.

Claims (10)

1. A resistance sensing mechanism for fitness equipment, the fitness equipment comprising a frame and a flywheel arranged on the frame, the resistance sensing mechanism comprising: A resistance adjustment unit has an adjustment seat, a fixed sleeve, and an adjustment rod. The adjustment seat includes an adjustment base and a first screw base. The adjustment base is arranged on the periphery of the flywheel and the adjustment base One end is pivoted on the frame, the fixing sleeve is arranged on the frame and is located above the adjusting base, the adjusting rod can be rotatably passed through the fixing sleeve, and the adjusting rod has a first A thread segment and a second thread segment, the first thread segment and the second thread segment have opposite directions of rotation, the first screw base is screwed to the first thread segment of the adjustment rod and pivotally connected to the adjustment base ;as well as A sensing unit has a second screw base, a sensing element, and a sensed element, the second screw base is screwed to the second thread segment of the adjusting rod of the resistance adjusting unit, and the sensing element is provided with in one of the adjustment seat of the resistance adjustment unit and the second screw seat of the sensing unit, the sensed element is arranged on the other of the adjustment seat of the resistance adjustment unit and the second screw seat of the sensing unit One, the sensing element and the sensed element correspond to each other Wherein, the first and second screw seats are driven toward or away from each other by the adjustment rod. 2 . The resistance sensing mechanism of fitness equipment as claimed in claim 1 , wherein: the sensing element is disposed on one of the adjustment base of the adjustment base and the second screw base of the sensing unit, and the sensed The sensing element is arranged on the other one of the adjustment base of the adjustment base and the second screw base of the sensing unit. 3. The resistance sensing mechanism of the fitness equipment as claimed in claim 1, wherein: the sensing element is disposed on one of the first screw base of the adjustment base and the second screw base of the sensing unit, the The sensing element is arranged on the other one of the first screw base of the adjusting base and the second screw base of the sensing unit. 4. The resistance sensing mechanism of the fitness equipment as claimed in claim 3, wherein: the first screw base has a base and a bearing frame disposed on the front end of the base, the bearing frame is used to carry the sensing element or the sensed element. 5. The resistance sensing mechanism of fitness equipment as claimed in claim 2 or claim 4, wherein: the resistance sensing mechanism comprises a guide rod, the guide rod is adjacent to the adjustment rod, the second screw base Abutting on the guide rod slidably, when the adjustment rod rotates, the second screw base will be driven by the second thread segment of the adjustment rod and guided by the guide rod, and along the adjustment rod Axial movement of the rod. 6 . The resistance sensing mechanism of fitness equipment as claimed in claim 5 , wherein: the guide rod is fixed on the frame or the fixed sleeve of the resistance adjustment unit. 7 . 7. The resistance sensing mechanism of fitness equipment as claimed in claim 6, wherein: the second screw base has a guide hole penetrating through the top surface and the bottom surface, and the guide rod is slidably penetrated through the guide inside the hole. 8 . The resistance sensing mechanism of the fitness equipment as claimed in claim 7 , wherein: the axial direction of the guide rod is parallel to the axial direction of the adjustment rod. 9 . 9. The resistance sensing mechanism for fitness equipment as claimed in claim 6, wherein: the second screw base has a front end surface and a guide groove, the guide groove is recessed rearward from the front end surface and penetrates through the first On the top and bottom surfaces of the two screw bases, the guide rod is slidably accommodated in the guide groove. 10. The resistance sensing mechanism of claim 1, wherein the diameter of the first thread segment is smaller than the diameter of the second thread segment.

Images