Adjusting structure for adjusting tightness of belt

Abstract

The utility model relates to an adjusting structure for adjusting the tightness of a belt, and belongs to the technical field of fitness equipment. The other end of the rotating rod is connected with a rotating motor, so that the rotating rod can be driven by the rotating rod to rotate through the rotating motor, the position of the belt pulley is changed, the belt pulley abuts against the belt during use, the pressure between the belt pulley and the belt is adjusted by changing the position of the belt pulley, and the tightness of the belt is adjusted; and the pressure sensor is arranged on the adjusting mechanism and used for measuring the pressure between the belt pulley and the belt, so that real-time monitoring and dynamic adjustment of the belt tension can be realized through the pressure sensor and the automatic adjusting mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building equipment technical field, specifically provide a kind of adjusting structure of adjusting belt tightness. BACKGROUND

[0002] Belt drive system is widely used in indoor body-building equipment, such as exercise bike, elliptical machine, horizontal exercise bike etc., these devices are all dependent on belt drive to realize the cooperative work of moving parts. And the tension degree of belt is directly related to transmission efficiency and equipment service life, is an important link to ensure the normal operation of equipment. Traditional technology is more used spring, hydraulic or mechanical limiting to adjust belt tension, but the inventor in the process of realizing the present application embodiment these methods have the following shortcomings:

[0003] Most of the belt drive device of body-building equipment on the market does not have the device for adjusting its tightness, which leads to the influence on use effect when the belt loosens, often need to ask professional maintenance personnel to the user home to disassemble and repair its body-building equipment, which not only reduces the user's use experience, also increases the maintenance cost of device;

[0004] Traditional adjustment mode can only adjust the belt tightness to the level close to factory setting, cannot dynamically and real-time adjust according to actual running state. Thus, even after debugging, belt may still have the problem of mismatching tightness in use process, leading to poor exercise effect. In case of difficulty or inability to adjust by user, technical personnel still need to be dispatched to handle. SUMMARY

[0005] The purpose of the present application is to provide a kind of belt tightness adjusting structure, so that it can realize the accurate adjustment and automatic adjustment of belt tightness, and the specific scheme is as follows:

[0006] A kind of adjusting structure of adjusting belt tightness, comprising:

[0007] Pulley: the pulley is connected with one end of rotating rod;

[0008] Rotating rod: the other end of the rotating rod is connected with rotating motor, so that it can be rotated by rotating motor to drive rotating rod, so as to change the position of pulley, so that the pulley is abutted on the belt in use, and the pressure between pulley and belt is adjusted by changing the position of pulley to adjust the tightness of belt;

[0009] Pressure sensor: the pressure sensor is arranged on adjusting mechanism for measuring the pressure between pulley and belt, if it detects that the pressure between pulley and belt is reduced to cause the pressure to be less than preset value, starting rotating motor increases the pressure to preset value by adjusting the position of pulley to achieve the technical effect of accurate adjustment.

[0010] Further, it can also display its pressure value and standard value in real time through the display screen to achieve real-time acquisition of the tightness of the belt and whether the adjustment is accurate.

[0011] As a preferred, it can also send an adjustment instruction to the control system of the rotary motor when the pressure sensor detects that the pressure does not meet the preset value through an automatic control method, so that the rotary motor can adjust the tightness of the belt in real time according to the feedback information of the pressure sensor.

[0012] Further, the adjustment mechanism further comprises a rotating rod fixing portion, the rotating rod fixing portion is hinged to the middle segment of the rotating rod, so that the rotating rod can rotate around the hinge point on the rotating rod fixing portion, one end of the rotating rod is connected with a belt pulley, and the other end of the rotating rod is provided with a threaded hole, so that the other end of the rotating rod is screwed with the output shaft of the rotary motor through the threaded hole, so that the rotary motor output shaft can realize the back and forth swing of the rotating rod through the forward and reverse rotation, so as to adjust the pressure applied by the belt pulley to the belt.

[0013] Further, the adjustment mechanism further comprises an output shaft limiting portion, the output shaft limiting portion is hinged with a limiting device, and the limiting device is a stop ring to ensure that the output shaft maintains a fixed axial position during rotation, and in this way, the adjustment stability and service life of the device can be obviously improved compared with the adjustment method of directly driving the rotating rod to rotate by the rotary motor.

[0014] Further, the adjustment mechanism further comprises a motor limiting portion to limit the motor to move in two dimensions in a plane, so that the rotary motor can realize the back and forth swing of the rotating rod through the forward and reverse rotation of the output shaft, so as to adjust the pressure applied by the belt pulley to the belt.

[0015] Further, the motor limiting portion is arranged on the side surface of the motor, and the surface of the motor limiting portion in contact with the side surface of the motor is a contact surface to limit the rotation of the body of the rotary motor through the contact surface.

[0016] Further, the side surface of the rotary motor is provided with a limiting block, and the motor limiting portion is provided with a limiting groove according to the running track of the limiting block of the rotary motor during the working time, so that during the working time, the limiting block of the rotary motor can move along the limiting groove.

[0017] Further, the limiting block is a clamping block, and the limiting groove is a clamping groove matched with the clamping block, so that the clamping block can only move in two dimensions along the limiting groove, so as to greatly increase the limiting effect.

[0018] Further, the contact surface of the motor limiting part and the rotary motor is two, which respectively contacts the two opposite surfaces of the rotary motor, using this structure can further increase the limiting effect under the condition of increasing the beauty.

[0019] Further, the specific installation positions of the rotary rod fixing part, the output shaft, the output shaft limiting part, the limiting device and the motor limiting part can be determined by those skilled in the art according to the shape of the fitness vehicle frame, the position of the belt and the installation position of the adjusting mechanism, and the installation positions are also given in the drawings of the specification, and those skilled in the art can determine the installation positions of the adjusting mechanism according to the disclosure of the specification and the drawings, which will not be described hereinafter.

[0020] Further, the pulley is rotatably connected to one end of the rotary rod.

[0021] Further, the pressure sensor can be integrated on the pulley.

[0022] Compared with the prior art, the belt tightness adjusting structure has the following beneficial effects:

[0023] Through the automatic adjusting device, the user can keep the belt in the best tensioning state without professional maintenance personnel, which greatly improves the use experience of the equipment and reduces the failure risk caused by belt loosening.

[0024] The feedback control mechanism can be used to make the system detect the contact pressure between the belt and the pulley in real time, and automatically adjust the tensioning force, so that the equipment is always maintained in an ideal transmission state. Through precise tensioning control, the technical scheme ensures that the belt transmission system can work stably under different working conditions, reduces mechanical wear, improves the reliability and safety of the whole system, and realizes the function of automatically adjusting the belt tightness.

[0025] The utility model can effectively avoid the equipment loss and maintenance demand caused by improper belt tightness, prolong the service life of the equipment, and reduce the after-sales maintenance cost and service response time. DRAWINGS

[0026] Figure 1 is the structure schematic view of the embodiment 1 of the utility model installed on the frame body;

[0027] Figure 2 is the enlarged view of the main body structure of the embodiment 1 of the utility model installed on the frame body.

[0028] 1. Pulley, 2. Rotary rod, 3. Rotary motor, 4. Rotary rod fixing part, 5. Output shaft, 6. Output shaft limiting part, 7. Limiting device, 8. Motor limiting part, A. Frame body, B. Belt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the terms "mounting", "setting", "sleeving / connecting", "connecting" and the like should be understood in a broad sense. For example, "connecting" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0031] Embodiment 1: refer to Figure 1 , Figure 1 It is the structure diagram that the adjusting mechanism of the utility model is installed on the body A of exercise bicycle, an adjusting structure for adjusting the tightness of belt B, comprising:

[0032] Belt pulley 1: the belt pulley 1 is rotatably connected with one end of rotating rod 2;

[0033] Rotating rod 2: the other end of the rotating rod 2 is connected with rotating motor 3, so that it can drive rotating rod 2 to rotate through rotating motor 3, thereby changing the position of belt pulley 1, so that the belt pulley 1 is abutted on belt B in use, and the pressure between belt pulley 1 and belt B is adjusted by changing the position of belt pulley 1 to adjust the tightness of belt B;

[0034] Pressure sensor: the pressure sensor is integrated on the belt pulley 1 for measuring the pressure between belt pulley 1 and belt B. If it detects that the pressure between belt pulley 1 and belt B is reduced to cause the pressure to be less than the preset value, then starting rotating motor 3 increases the pressure to the preset value by adjusting the position of belt pulley 1 to play the technical effect of accurate adjustment;

[0035] Rotary rod fixed part 4: the rotary rod fixed part 4 is hinged with the middle section of the rotary rod 2, so that the rotary rod 2 can rotate around the hinge point on the rotary rod fixed part 4, one end of the rotary rod 2 is connected with the belt pulley 1, the other end of the rotary rod 2 is provided with a threaded hole, so that the other end of the rotary rod 2 is screwed with the output shaft 5 of the rotary motor 3 through the threaded hole, so that the rotary rod 2 can swing back and forth through the forward and reverse rotation of the output shaft 5 of the rotary motor 3 to adjust the pressure applied by the belt pulley 1 to the belt B;

[0036] Output shaft limiting part 6: the output shaft limiting part 6 is hinged with a limiting device 7, the limiting device 7 is a stop ring to ensure that the output shaft 5 keeps a fixed axial position when rotating, in this way, the adjustment stability and service life of the device can be obviously improved compared with the adjustment method of directly driving the rotary rod 2 to rotate by the rotary motor 3;

[0037] Motor limiting part 8: the motor limiting part 8 is used to limit the motor to move in two dimensions in a plane, so that the rotary motor 3 can realize the swing of the rotary rod 2 through the forward and reverse rotation of the output shaft 5 to adjust the pressure applied by the belt pulley 1 to the belt B, the motor limiting part 8 is arranged on the side of the motor, the surface of the motor limiting part 8 in contact with the side of the motor is a contact surface, so as to limit the rotation of the body of the rotary motor 3.

[0038] In addition, the utility model discloses the following technical solutions on the basis of the above embodiment:

[0039] I. It can also display the pressure value and standard value in real time through the display screen to realize real-time acquisition of the tightness of the belt B and whether the adjustment is accurate;

[0040] II. It can also send an adjustment instruction to the control system of the rotary motor 3 when the pressure sensor detects that the pressure does not meet the preset value through the automatic control method, so that the rotary motor 3 can adjust the tightness of the belt B in real time according to the information fed back by the pressure sensor;

[0041] III. The side of the rotary motor 3 is provided with a limiting block, and the motor limiting part 8 is provided with a limiting groove according to the running track of the limiting block on the side of the rotary motor 3 during working time, so that the limiting block can move along the limiting groove during working time;

[0042] IV. The limiting block is a clamping block, and the limiting groove is a clamping groove matched with the clamping block, so that the clamping block can only move in two dimensions along the limiting groove, thereby greatly increasing the limiting effect;

[0043] Five, the contact surface of the motor limiting part 8 and the rotary motor 3 is two, which respectively contacts the two opposite surfaces of the rotary motor 3, using this structure can further increase the limiting effect in the case of increasing the beauty.

[0044] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application, therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An adjusting structure for adjusting belt tension, characterized in that, It comprises: a belt pulley connected to one end of a rotating rod; a rotating rod, the other end of which is connected to a rotating motor, so that the rotating rod can be rotated by the rotating motor to change the position of the belt pulley, so that the belt pulley abuts on the belt during use, and the pressure between the belt pulley and the belt is adjusted by changing the position of the belt pulley to adjust the tightness of the belt; a pressure sensor arranged on the adjusting mechanism for measuring the pressure between the belt pulley and the belt.

2. The belt tightness adjusting structure according to claim 1, wherein The adjusting mechanism further comprises a rotating rod fixing part hinged to the middle section of the rotating rod, so that the rotating rod can rotate around the hinge point on the rotating rod fixing part, one end of the rotating rod is connected to the belt pulley, and the other end of the rotating rod is provided with a threaded hole, so that the other end of the rotating rod is screwed with the output shaft of the rotating motor, so that the rotating rod can swing back and forth by the forward and reverse rotation of the output shaft of the rotating motor to adjust the pressure applied by the belt pulley to the belt.

3. The belt tightness adjusting structure according to claim 1, wherein The adjusting mechanism further comprises an output shaft limiting part, and a limiting device is hinged to the output shaft limiting part, and the limiting device is a stop ring to ensure that the output shaft maintains a fixed axial position during rotation.

4. The belt tightness adjusting structure according to claim 1, wherein The adjusting mechanism further comprises a motor limiting part to limit the motor to move only in two dimensions in a plane, so that the rotating motor can swing the rotating rod back and forth by the forward and reverse rotation of its output shaft to adjust the pressure applied by the belt pulley to the belt.

5. The belt tightness adjusting structure according to claim 4, wherein The motor limiting part is arranged on the side of the motor, and the surface of the motor limiting part that is in contact with the side of the motor is a contact surface to limit the rotation of the body of the rotating motor through the contact surface.

6. The belt tightness adjusting structure according to claim 4, wherein The side of the rotating motor is provided with a limiting block, and a limiting groove is opened on the motor limiting part according to the running track of the limiting block of the rotating motor during working time, so that the limiting block of the rotating motor can move along the limiting groove during working time.

7. The belt tightness adjusting structure according to claim 6, wherein The limiting block is a clamping block, and the limiting groove is a clamping groove matched with the clamping block, so that the clamping block can only move in two dimensions along the limiting groove.

8. The belt tightness adjusting structure according to any one of claims 4 to 6, characterized in that, The contact surface of the motor limiting part and the rotating motor is two, which respectively contacts the two opposite surfaces of the rotating motor.

9. The belt tightness adjusting structure according to claim 1, wherein The belt pulley is rotatably connected to one end of the rotating rod.

10. The belt tightness adjusting structure according to claim 1, wherein The pressure sensor is integrated on the belt pulley.

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