WO2022160659A1

WO2022160659A1 - Continuously variable transmission adjustment device

Info

Publication number: WO2022160659A1
Application number: PCT/CN2021/111810
Authority: WO
Inventors: 李寅生
Original assignee: 上海寅生科技有限公司
Priority date: 2021-01-29
Filing date: 2021-08-10
Publication date: 2022-08-04
Also published as: CN112933508A

Abstract

Disclosed in the present application is a continuously variable transmission adjustment device. The continuously variable transmission adjustment device comprises a fixed frame, which is fixed on the ground, wherein a tensioning vertebral body and a fixing vertebral body are rotationally connected to the fixed frame, and the tensioning vertebral body and the fixing vertebral body are both vertebral bodies and are placed in opposite directions; an adjustment assembly is provided on the fixed frame, the adjustment assembly comprises a continuously variable transmission adjustment disc, a variable transmission adjustment slide seat and a variable transmission adjustment screw, the continuously variable transmission adjustment disc is fixed on one end of the variable transmission adjustment screw, the variable transmission adjustment screw is rotationally connected to the fixed frame, and the variable transmission adjustment slide seat is sleeved on the variable transmission adjustment screw; and the variable transmission adjustment slide seat is provided with a variable transmission friction-ring limiting plate, the variable transmission friction-ring limiting plate is provided with a variable transmission friction ring, and the variable transmission friction ring is sleeved on the fixing vertebral body. The present application has the effect of improving the accuracy of adjusting a pulling force.

Description

A stepless speed change adjustment device

technical field

The present application relates to the technical field of fitness equipment, and in particular, to a continuously variable speed adjustment device.

Background technique

With the continuous improvement of people's living standards, people's emphasis on physical health is also increasing. Exercise and fitness has become a fashion. Having a good physique can not only make people energetic, but also better devote themselves to study and work. , and it can also make people more confident, but now people study and work at a fast pace, and they don’t have a lot of free time. Many people can’t go to the gym and other places for physical exercise because they don’t have time, resulting in intentional exercise but no conditions. , so many people choose to buy home fitness equipment for exercise.

In the related art, a Chinese patent document with the authorization announcement number CN207429577U records an adjustable fitness equipment counterweight, including a counterweight block, a counterweight base, and an auxiliary counterweight block. There is at least one piece of each kind of counterweight, and the weight of each auxiliary counterweight is inconsistent, each auxiliary counterweight is provided with a fixed block, and the uppermost counterweight is correspondingly provided with multiple counterweights. A fixed slot, the auxiliary weight can be fixed in any fixed slot through the fixed block, the maximum weight of the auxiliary weight installed in combination is less than the weight of one counterweight; the side of the fixed block includes an inclined surface and a fixed surface, and the fixed slot The groove wall is correspondingly provided with an inclined groove surface and a fixed groove surface, the fixed surface is provided with a convex portion, the convex portion is provided with a fixing hole, the fixed groove surface is provided with a groove portion, and the groove portion is provided with a fixing mechanism; The fixed block and the auxiliary counterweight block are integral structures, and the protruding portion is an arc-shaped protrusion arranged on the side of the fixed block, and the arc-shaped protrusion is along the top of the auxiliary counterweight block. extending to the bottom; the fixing hole is located at one end of the protruding portion close to the top of the auxiliary counterweight block, and the protruding portion is provided with a pressing portion at the bottom of the auxiliary counterweight block.

The counterweight mechanism of the existing fitness equipment is to change the number of counterweight blocks by means of bolts, so as to achieve the adjustment of the pulling force of the fitness process. Several counterweight blocks are stacked in a fixed chute. Two fixed sliding rods are required to fix the sliding route of the counterweight block, and the counterweight block slides up and down along the fixed slide rail; there is a tension rod that passes through all the counterweight blocks from top to bottom, and there is a tension rod on the tension rod. The fixed pin hole corresponds to the pin hole in the middle of each counterweight. During the fitness process, the tension bar is moved up and down. During the fitness process, the tension is adjusted by inserting the pin into the hole in the middle of the counterweight and the corresponding hole on the tension rod to achieve the fixed tension rod. With the weight block, the adjustment of the pulling force during the fitness process can be realized.

The inventor believes that the weight of the weight of the existing fitness equipment is fixed, and the adjustment of the pulling force can only select a fixed pulling force value.

SUMMARY OF THE INVENTION

In order to improve the precision of adjusting the pulling force, the present application provides a continuously variable speed adjustment device.

Technical scheme: a continuously variable speed adjustment device, comprising a fixed frame fixed on the ground, and a tensioned vertebral body and a fixed vertebral body are rotatably connected to the fixed frame, and the tensioned vertebral body and the fixed vertebral body are both vertebral bodies. body, and the placement direction is opposite;

The fixed frame is provided with an adjustment component, the adjustment component includes a continuously variable speed adjustment disc, a speed change adjustment slide and a speed change adjustment screw, the continuously variable speed adjustment disc is fixed on one end of the speed change adjustment screw, and the speed change adjustment screw is rotatably connected to the fixed frame, and the speed change adjustment sliding seat is sleeved on the speed change adjustment screw rod;

The speed change adjustment sliding seat is provided with a speed change friction ring limit plate, a speed change friction ring is placed on the speed change friction ring limit plate, and the speed change friction ring is sleeved on the fixed vertebral body.

As a preferred technical solution, a continuously variable digital indicator plate is provided on one side of the fixed frame close to the continuously variable speed adjustment plate.

As a preferred technical solution, the adjustment assembly further includes two speed change adjustment slide rails, the two speed change adjustment slide rails are fixed on the fixed frame in parallel with each other, and the speed change adjustment slide seat is slidably fitted on the speed change adjustment slide rails. superior.

As a preferred technical solution, the center of the fixed vertebral body is fixed with a central axis of the fixed vertebral body, and the fixed vertebral body is rotatably connected to the fixed frame through the central axis of the fixed vertebral body.

As a preferred technical solution, both ends of the central axis of the fixed vertebral body are provided with anti-rotation one-way bearings.

As a preferred technical solution, one end of the central axis of the fixed vertebral body is provided with a pull rope collector, and a pull rope is wound around the pull rope collector.

As a preferred technical solution, the outer surface of the drawstring collector is provided with a helical thread.

As a preferred technical solution, the center of the tensioning vertebral body is fixedly connected with the central axis of the tensioning vertebral body, and the tensioning vertebral body is rotatably connected to the fixed frame through the central axis of the tensioning vertebral body.

As a preferred technical solution, a vertebral body tensioning spring is provided on the axial direction of the central axis of the tensioning vertebral body.

As a preferred technical solution, one end of the central axis of the tensioning vertebral body is provided with a powerful collection spring.

Beneficial effects: 1. According to the needs of users, adjust the counterweights of different sizes. First, rotate the stepless speed change adjustment plate, the stepless speed change adjustment plate drives the speed change adjustment screw to rotate, and the rotation of the speed change adjustment screw drives the speed change adjustment slide along its Axial movement, which in turn drives the limit plate of the variable speed friction ring to move, and finally drives the variable speed friction ring to move along the extension direction of the fixed vertebral body. The position of the variable speed friction ring is different, and the size of the counterweight is different. , the larger the weight.

2. The design of the anti-rotation one-way bearing enables the fixed vertebral body to rotate only in one direction, thereby preventing the tensioned vertebral body from reversing.

3. The design of the force collection spring ensures that the elastic reaction force generated by the tension spring of the vertebral body remains constant.

4. The design of the stepless speed change digital indicator plate enables the rotation number of the stepless speed change adjustment plate to be displayed in detail, which improves the accuracy of adjusting the weight ratio.

5. By reducing the use of counterweight blocks, it has the advantage of reducing waste of resources; adjusting the counterweight has a larger range and is not affected by the weight of a single counterweight block. The minimum number of counterweights.

6. It is more free to adjust the counterweight and is not limited by the weight of a single counterweight.

7. Due to the weight reduction of the counterweight mechanism, the weight reduction of the fitness equipment using the counterweight mechanism is realized.

8. The counterweight mechanism is more environmentally friendly. Since the fitness equipment has a certain service life, the traditional fitness equipment is equipped with counterweight blocks. As the service life of the fitness equipment reaches, the counterweight blocks are also discarded; the counterweight mechanism of this application does not require The use of counterweight blocks to counterbalance the weight, so as to achieve the purpose of environmental protection.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the front structure schematic diagram of the embodiment of the present application;

2 is a schematic diagram of a rear structure of an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present application.

Reference signs: 1. Fixed frame; 2. Tensioned vertebral body; 3. Fixed vertebral body; 4. Tensioned vertebral body central axis; 5. Fixed vertebral body central axis; Collector; 8. Pull rope; 9. One-way bearing of pull rope collector; 10. Pull rope return spring; 11. Continuously variable speed adjustment plate; 12. Continuously variable speed digital indicator plate; 13. Variable speed adjustment slide ; 14, variable speed adjustment slide rail; 15, variable speed adjustment screw; 16, anti-rotation one-way bearing seat; 17, anti-rotation one-way bearing; 18, force collection spring; 19, vertebral body tension spring; 20, tension Spring limit pin; 21. Limit plate of variable speed friction ring; 22. Variable speed friction ring.

Detailed ways

The content of the present application may be more readily understood by reference to the following detailed description of the preferred method of practice of the present application and the included examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In case of conflict, the definitions in this specification will control.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present application.

A stepless speed change adjustment device, comprising a fixed frame 1, a tensioned vertebral body 2, a fixed vertebral body 3, a tensioned vertebral body central axis 4, a fixed vertebral body central axis 5, a mainspring fixing seat 6, and a pulling rope collector 7 , Pull rope 8, Pull rope collector one-way bearing 9, Pull rope return spring 10, Continuously variable speed adjustment plate 11, Continuously variable speed digital indicator plate 12, Variable speed adjustment slide 13, Variable speed adjustment slide rail 14, Variable speed Adjusting screw 15, anti-rotation one-way bearing seat 16, anti-rotation one-way bearing 17, force collection spring 18, vertebral body tension spring 19, tension spring limit pin 20, variable speed friction ring limit plate 21, variable speed friction Ring 22.

The fixing frame 1 is a rectangular frame, the tensioning vertebral body 2 is a hollow cone, the central axis 4 of the tensioning vertebral body is a cylinder, the tensioning vertebral body 2 and the central axis 4 of the tensioning vertebral body are fixed by welding, and the tensioning vertebral body is fixed by welding. Both ends of the central shaft 4 pass through the fixed frame 1 and can rotate freely, the tensioning spring limit pin 20 is fixed on the central shaft 4 of the tensioning vertebral body by welding, and the vertebral body tensioning spring 19 is compressed and installed in the center of the tensioning vertebral body On the shaft 4, one end of the vertebral body tensioning spring 19 is in contact with the tensioning spring limit pin 20 and the other end is in contact with the tensioning vertebral body 2. The elastic force of the vertebral body tensioning spring 19 makes the tensioning vertebral body 2 and the fixed vertebral body 3 The gap between them is elastically reduced, and the inner ring of the force collecting spring 18 is welded and fixed to the end of the central axis 4 of the tensioning vertebral body. A buffer is provided in between.

The fixed vertebral body 3 is fixed with the fixed vertebral body central axis 5. Both ends of the fixed vertebral body central axis 5 pass through the fixed frame 1 and can rotate freely. 7 and the fixed vertebral body central axis 5 are connected by the one-way bearing 9 of the pull rope collector, so that the fixed vertebral body 3 and the fixed vertebral body central axis 5 can only rotate counterclockwise.

The front end of the pull rope collector 7 is equipped with a pull rope return spring 10, the outer side of the pull rope return spring 10 is fixed with the inner surface of the pull rope collector 7, and the inner measurement of the pull rope return spring 10 is fixed with the spring. The seat 6 is connected and fixed, the mainspring fixing seat 6 is fixedly connected with the fixing frame 1, the outer surface of the pull rope collector 7 has a helical thread, the pull rope 8 is wound along the helical thread of the pull rope collector 7, and one end of the pull rope 8 It is fixed to the pull rope collector 7, and the other end of the pull rope 8 can be pulled up to a length of 0 to 2 meters. During the pulling process of the pull rope 8, the pull rope collector 7 rotates counterclockwise, and the pull rope collector 7 is collected by the pull rope. The one-way bearing 9 transmits the rotational force to the fixed vertebral body central axis 5. Since the fixed vertebral body central axis 5 is fixed with the fixed vertebral body 3, the fixed vertebral body 3 rotates counterclockwise.

The anti-rotation one-way bearing 17 is fixed to the other end of the fixed vertebral body central axis 5 by welding, and the outer side of the anti-rotation one-way bearing 17 is welded and fixed to the fixed frame 1 through the anti-rotation one-way bearing seat 16. When the pull rope 8 is returned by the pull rope When the mainspring 10 is automatically retracted clockwise and automatically wound along the helical thread of the pull rope collector 7, the anti-rotation one-way bearing 17 prevents the fixed vertebral body central axis 5 and the fixed vertebral body 3 from rotating, so as to be pulled by the pull rope 8. The function of the fixed vertebral body 3 being only one-way counterclockwise rotation can be realized by going out and retracting.

The variable-speed friction ring 22 is installed between the fixed vertebral body 3 and the tensioned vertebral body 2, so that when the fixed vertebral body 3 rotates counterclockwise, the frictional force of the variable-speed friction ring 22 makes the tensioned vertebral body 2 generate a clockwise rotational force. The vertebral body tensioning spring 19 inside the tensioning vertebral body 2 makes the tensioning vertebral body 2 move forward, so that the gap between the tensioning vertebral body 2 and the fixed vertebral body 3 becomes smaller, thereby clamping the variable speed friction ring 22 to increase the fixed vertebral body. 3. The frictional force with the tensioning vertebral body 2 ensures the transmission of force, and the variable speed friction ring 22 can run back and forth along the gap between the fixed vertebral body 3 and the tensioning vertebral body 2.

When the variable speed friction ring 22 moves to the front end of the counterweight mechanism, the fixed vertebral body 3 is in a large diameter state and the tensioned vertebral body 2 is in a small diameter state, and the fixed vertebral body 3 rotates once and the tensioned vertebral body 2 rotates 7 times. When the ring 22 moves to the rear end of the counterweight mechanism, the fixed vertebral body 3 is in a small diameter state, and the tensioned vertebral body 2 is in a large diameter state, and the fixed vertebral body 3 rotates one circle and the tensioned vertebral body 2 rotates 1/7 circle, so as to achieve the speed change effect , the speed change friction ring 22 is fixed in the middle of the speed change friction ring fiber plate 21 to ensure that the speed change friction ring 22 does not appear in any state of up and down, front and rear deflection, and the speed change friction ring limit plate 21 is fixed on the speed change adjustment slide 13, when the speed change adjustment slide 13 When moving back and forth, the variable speed friction ring fiber board 21 is driven to move back and forth, thereby driving the variable speed friction ring 22 to move back and forth.

Both ends of the speed change adjustment seat 13 are installed on the speed change adjustment slide rail 14, the speed change adjustment seat 13 is provided with a speed change adjustment screw in the middle, and the front end of the speed change adjustment screw 15 is connected and fixed with the stepless speed change adjustment plate 11. The variable speed adjustment screw 15 is driven to rotate to realize the forward and backward movement of the variable speed adjustment seat 13. The continuously variable speed adjustment dial 11 is equipped with pointers, the continuously variable speed digital indicator plate 12 is equipped with adjustment numbers, the continuously variable speed digital indicator plate 12 and the fixed frame 1 fixed.

The foregoing examples are illustrative only and serve to explain some of the features of the methods described herein. The appended claims are intended to claim the broadest conceivable scope and the embodiments presented herein are merely illustrative of selected implementations according to a combination of all possible embodiments. Accordingly, it is the applicant's intention that the appended claims not be limited by the selection of examples that characterize the present application. Some numerical ranges used in the claims also include sub-ranges within them, and variations within these ranges should also be construed, where possible, to be covered by the appended claims.

Claims

A stepless speed change adjusting device, comprising a fixing frame (1) fixed on the ground, characterized in that: a tensioning vertebral body (2) and a fixing vertebral body (3) are rotatably connected to the fixing frame (1), The tensioned vertebral body (2) and the fixed vertebral body (3) are both vertebral bodies, and the placement directions are opposite;

An adjustment assembly is provided on the fixed frame (1), and the adjustment assembly includes a stepless speed change adjustment disc (11), a speed change adjustment slide (13) and a speed change adjustment screw (15). 11) It is fixed on one end of the speed change adjustment screw (15), the speed change adjustment screw (15) is rotatably connected to the fixed frame (1), and the speed change adjustment slide (13) is sleeved on the speed change adjustment screw (15) ;

A speed change friction ring limit plate (21) is provided on the speed change adjustment sliding seat (13), a speed change friction ring (22) is placed on the speed change friction ring limit plate (21), and the speed change friction ring (22) The sleeve is sleeved on the fixed vertebral body (3).
The stepless speed change adjusting device according to claim 1, characterized in that: a stepless speed change digital indicator plate (12) is provided on the fixed frame (1) on the side close to the stepless speed change adjustment plate (11).
A continuously variable speed adjustment device according to claim 2, characterized in that: the adjustment assembly further comprises two speed change adjustment slide rails (14), and the two speed change adjustment slide rails (14) are fixed parallel to each other on the On the fixed frame (1), the speed change adjustment slide seat (13) is slidably fitted on the speed change adjustment slide rail (14).
A continuously variable speed adjustment device according to claim 1, characterized in that: the center of the fixed vertebral body (3) is fixed with a fixed vertebral body central axis (5), and the fixed vertebral body (3) is fixed by The central axis (5) of the vertebral body is rotatably connected to the fixed frame (1).
A continuously variable speed adjustment device according to claim 4, characterized in that both ends of the fixed vertebral body central shaft (5) are provided with anti-rotation one-way bearings (17).
A continuously variable speed adjustment device according to claim 5, characterized in that: one end of the fixed vertebral body central axis (5) is provided with a pull rope collector (7), and the pull rope collector (7) A drawstring (8) is wound on it.
A continuously variable speed adjustment device according to claim 6, characterized in that: the outer surface of the pull rope collector (7) is provided with a helical thread.
A continuously variable speed adjustment device according to claim 1, characterized in that: the center of the tensioning vertebral body (2) is fixedly connected with a central axis (4) of the tensioning vertebral body, and the tensioning vertebral body (2) 2) Rotately connect to the fixed frame (1) by tensioning the central axis (4) of the vertebral body.
A stepless speed change adjusting device according to claim 8, characterized in that: a vertebral body tensioning spring (19) is arranged on the axial direction of the central shaft (4) of the tensioning vertebral body.
A continuously variable speed adjustment device according to claim 9, characterized in that: one end of the central shaft (4) of the tensioning vertebral body is provided with a powerful collecting spring (18).