An electric adjustment lifting mechanism

Abstract

This invention provides an electrically adjustable lifting mechanism, characterized in that: the left and right sides of the fixed tube have horizontally oriented adjustable through holes for movable roller shafts and mounting through holes for fixed roller shafts; an electric push rod motor is fixedly connected to the fixed tube; the top end of the electric push rod is fixedly connected to the functional component and located inside the support tube; the support tube is fixed to the functional component, and its front and rear sides are vertically arc-shaped sides, with the support tube inserted into the fixed tube from above; the wing plates of the locking plate have horizontal adjustment holes, and an adjusting nut is fixedly installed at a through hole position on the bottom plate; the fixed tube is inserted between the wing plates, the roller shaft passes through the adjustable through holes for movable roller shafts and the horizontal adjustment holes, and the roller shaft passes through the mounting through holes for fixed roller shafts, with the groove of the roller pressing against the arc-shaped side of the support tube; the adjusting screw passes through the adjusting nut and rests against the rear side of the fixed tube. This invention provides a mechanism for convenient and stable lifting adjustment during movement.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment, specifically to an electrically adjustable lifting mechanism for use in fitness equipment. Background Technology

[0002] Traditional exercise equipment such as stationary bikes (and not limited to exercise equipment) have seat (or handlebar) height adjustment mechanisms that either require the user to stop exercising before adjustment, or are prone to wobbling when adjusted to a higher position, or require cumbersome adjustment actions, giving users a very poor experience. Summary of the Invention

[0003] The present invention provides an electrically adjustable lifting mechanism, the purpose of which is to overcome the shortcomings of the prior art and provide a mechanism that can conveniently and stably adjust the lifting during movement.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] An electrically adjustable lifting mechanism, characterized in that:

[0006] The front side of the fixed tube is provided with a movable roller side through hole, and the rear side is provided with a fixed roller side through hole;

[0007] The left and right sides of the fixed tube correspond to the side through holes of the movable rollers and have two opposite horizontal strip-shaped movable roller shaft adjustment through holes; the left and right sides of the fixed tube correspond to the side through holes of the fixed rollers and have two opposite fixed roller shaft mounting through holes.

[0008] The electric linear actuator motor is fixedly connected to the fixed tube; the output shaft of the electric linear actuator motor is connected to the drive structure and drives the lifting and lowering of the electric linear actuator.

[0009] The top of the electric actuator is fixedly connected to the functional component, and the electric actuator is located inside the support tube; the top of the support tube is fixed to the functional component, and the front and rear sides of the support tube are vertical arc-shaped sides, and the support tube is inserted into the fixed tube from above.

[0010] The two wing plates extending from the bottom plate of the locking plate are respectively provided with lateral adjustment holes, and a through hole is provided on the bottom plate, with an adjustment nut fixed at the through hole position;

[0011] The roller assembly includes a roller shaft, and the roller is mounted on the roller shaft by bearings; the roller includes two roller sides, and the diameter of the roller gradually decreases from the roller sides to the center, forming a groove between the two roller sides;

[0012] The fixing tube is inserted between the two wing plates of the locking plate, and the lateral adjustment hole opened on each wing plate is connected to the movable roller shaft adjustment through hole on the corresponding side of the fixing tube;

[0013] A roller assembly is inserted into the side through hole of the movable roller assembly. The roller shafts on both sides of the roller assembly pass through the movable roller shaft adjustment through holes and the lateral adjustment holes located on both sides. The groove of the roller presses against the arc-shaped side of the front side of the support tube.

[0014] A roller assembly is inserted into the side through hole of the fixed roller. The roller shafts on both sides of the roller assembly pass through the mounting through holes of the fixed roller shafts on both sides. The groove of the roller presses against the arc-shaped side of the rear side of the support tube.

[0015] An adjusting screw and an adjusting nut are screwed together. After the adjusting screw passes through the adjusting nut, the bottom end of the adjusting screw rests against the rear side of the fixed tube.

[0016] The top of the electric push rod is fixedly connected to the lower surface of the lower slide rail of the mechanism. The upper slide rail of the mechanism slides in cooperation with the lower slide rail of the mechanism, and the functional component is fixed on the upper slide rail of the mechanism.

[0017] The front side of the fixed tube has two vertically arranged movable roller side through holes; the opposite rear side has two vertically arranged fixed roller side through holes; the left and right sides of the fixed tube have two opposite horizontal strip-shaped movable roller shaft adjustment through holes corresponding to each movable roller side through hole; the left and right sides of the fixed tube have two opposite fixed roller shaft mounting through holes corresponding to each fixed roller side through hole; each wing plate has two vertically arranged horizontal adjustment holes, which communicate with the movable roller shaft adjustment through holes on the corresponding side of the fixed tube; two rollers are installed on the front and rear sides of the fixed tube respectively.

[0018] The groove formed between the two sides of the roller has an arc-shaped cross-section.

[0019] The wingplate consists of a transition section located at the rear and a main body section located at the front. The transition section is connected to the bottom plate, and the width of the transition section is smaller than the width of the main body section.

[0020] The outer surface of the support tube has a scale from top to bottom.

[0021] A distance sensor is installed inside the fixed tube corresponding to the electric push rod, and the distance sensor is connected to an instrument or display.

[0022] A protective cover is installed at the end of the roller shaft.

[0023] The left and right sides of the support tube are held by the sides of the rollers.

[0024] The advantages of this invention are:

[0025] This invention patent allows the entire mechanism to be fixed to the frame of the fitness equipment via a fixing tube. The action mechanism is separated from the movement structure of the fitness equipment, so its height adjustment will not interfere with the movement structure of the fitness equipment. Therefore, the height of the mechanism can be adjusted during exercise, and the height can be adjusted by starting the electric push rod motor, saving the user from cumbersome adjustment actions. In addition, the front and rear rollers clamp the support tube, so there will be no shaking during the entire adjustment process. This provides a stable, convenient and reliable adjustment structure for new types of adjustment. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is the front view of the present invention;

[0028] Figure 2 for Figure 1 View from direction A;

[0029] Figure 3 for Figure 1 View from direction B;

[0030] Figure 4 This is a perspective view of the present invention after the fixing tube has been removed;

[0031] Figure 5 for Figure 4 3D view after removing the support tube;

[0032] Figure 6 A 3D view of the combination of the mechanism support tube and the lower rail;

[0033] Figure 7 This is a 3D view of the fixed tube;

[0034] Figure 8 A 3D view of the locking plate;

[0035] Figure 9 This is a 3D view of the roller assembly. Detailed Implementation

[0036] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort. To facilitate understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0037] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] like Figure 7 The fixed tube 7 shown is a hollow square weldment.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown: The front side of the square fixed tube 1 has two vertically arranged movable roller side through holes 11, and the opposite rear side has two vertically arranged fixed roller side through holes 12.

[0040] On the other two sides perpendicular to the two sides mentioned above, namely the left and right sides, corresponding to each movable roller side through hole 11, two opposite horizontal strip-shaped movable roller shaft adjustment through holes 13 are provided, and corresponding to each fixed roller side through hole 12, two opposite fixed roller shaft mounting through holes 14 are provided.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown:

[0042] The electric push rod motor 6 is installed at the lower end inside the fixed tube 1. The fixed plate 7 is fixed to the fixed tube 1 with screws. The fixed plate 7 is fixedly connected to the electric push rod motor 6 with screws. In this way, the electric push rod motor 6 is fixedly connected to the fixed tube 1. The fixed tube 1 is then fixedly connected to the frame of the fitness equipment. Thus, the entire electric adjustment and lifting mechanism is fixedly connected to the frame of the fitness equipment.

[0043] The output shaft of the electric linear actuator motor 6 is connected to and drives the electric linear actuator 61 to rise and fall via a connecting drive structure. The connecting drive structure can be the electric linear actuator motor 6 driving a gear, which in turn drives the rack of the electric linear actuator 15, or the electric linear actuator motor 6 driving a nut, which in turn drives the lead screw of the electric linear actuator 61 via a lead screw and nut combination.

[0044] The electric linear actuator motor 6 can be controlled via control cable 9 and control switch or wireless remote control.

[0045] The top end of the electric push rod 61 is fixedly connected to the lower surface of the mechanism slide rail 41. The mechanism upper slide rail 4 slides in cooperation with the mechanism lower slide rail 41. The seat 5 is fixed on the mechanism upper slide rail 4. In other embodiments, the seat 5 can be a handle or other functional component.

[0046] like Figure 6 As shown, the top end of the support tube 3 is fixed to the lower surface of the sliding rail 41 of the mechanism, and the front and rear sides of the support tube 3 are vertical arc-shaped sides 31.

[0047] Furthermore, the electric push rod 61 is located inside the support tube 3.

[0048] The support tube 3 is inserted into the fixing tube 1 from above. The outer surface of the support tube 3 has a scale 30 running from top to bottom. The scale 30 matches the upper edge of the fixing tube 1 to visually display the lifting distance.

[0049] In this way, the electric push rod 61 rises and falls, which in turn drives the support tube 3, the lower slide rail 41 of the mechanism, the upper slide rail 4 of the mechanism, and the seat 5 to rise and fall together.

[0050] like Figure 8 The locking plate 2 shown includes a base plate 21 and two parallel wing plates 24 extending from the base plate 21. Each wing plate 24 is composed of a transition portion 22 located on the rear side and a wing plate main body portion 23 located on the front side. The transition portion 22 is connected to the base plate 21, and the width of the transition portion 22 is smaller than the width of the wing plate main body portion 23. Each wing plate main body portion 23 has two horizontal adjustment holes 25 arranged vertically.

[0051] A through hole is provided on the base plate 21, and an adjusting nut 26 is welded at the position of the through hole.

[0052] like Figure 9 As shown, the roller assembly includes a roller shaft 51, and a roller 56 is mounted on the roller shaft 51 by two bearings 52. The roller 56 includes two roller sides 54, and the diameter of the roller 56 gradually decreases from the roller sides 54 towards the center, thus forming a groove 55 with an arc-shaped cross-section between the two roller sides 54.

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown:

[0054] Insert the fixing tube 1 between the two wing plates 24 of the locking plate 2. The lateral adjustment hole 25 opened on the wing plate body 23 of each wing plate 24 is connected to the movable roller shaft adjustment through hole 13 on the corresponding side of the fixing tube 1.

[0055] Thus, on each side of the movable roller side through hole 11 on the front side of the square fixed tube 1, there is a movable roller shaft adjustment through hole 13 and a lateral adjustment hole 25.

[0056] A roller 56 of a roller assembly is inserted into a side through hole 11 of a movable roller assembly. The roller shafts 51 on both sides of the roller assembly pass through the movable roller shaft adjustment through holes 13 and the lateral adjustment holes 25 located on both sides. The end of the roller shaft 51 exposed in the lateral adjustment hole 25 has a screw hole and a protective cover 57 is screwed on.

[0057] Thus, on the front side of the fixed tube 1, at each position of the movable roller side through hole 11, a roller 56 is pivotally mounted with a roller shaft 51, and the groove 55 of the roller 56 presses against the arc-shaped side 31 on the front side of the support tube 3. There are two rollers 56 on the front side of the fixed tube 1. Since the movable roller shaft adjustment through hole 13 and the lateral adjustment hole 25 are both lateral strips, these two rollers 56 and the roller shaft 51 can move laterally.

[0058] A roller 56 of a roller assembly is inserted into a side through hole 12 of a fixed roller. The roller shafts 51 on both sides of the roller assembly pass through the fixed roller shaft mounting through holes 14 on both sides. The ends of the roller shafts 51 that protrude from the fixed roller shaft mounting through holes 14 are provided with screw holes and are fitted with mounting protective covers 57.

[0059] Since the width of the transition section 22 is smaller than the width of the wing plate main body 23, the mounting through hole 14 for fixing the roller shaft is not blocked by the wing plate 24.

[0060] Thus, on the rear side of the fixed tube 1, at the position of the side through hole 12 of each fixed roller, a roller 56 is pivotally mounted with a roller shaft 51, and the groove 55 of the roller 56 presses against the arc-shaped side 31 on the rear side of the support tube 3. There are two rollers 56 on the rear side of the fixed tube 1. These two rollers 56 and the roller shaft 51 cannot move laterally.

[0061] An adjusting screw 8 is screwed into an adjusting nut 26, and the bottom end of the adjusting screw 8 rests against the rear side of the fixing tube 1 after passing through the adjusting nut 26.

[0062] Rotate the adjusting screw 8, and the adjusting nut 26 moves on the adjusting screw 8, which in turn moves the locking plate 2 toward the rear of the fixed tube 1.

[0063] The upper and lower horizontal adjustment holes 25 on the locking plate 2 pull the upper and lower roller shafts 51 to move backward in the upper and lower movable roller shaft adjustment through holes 13, so that the upper and lower rollers 56 located on the front side of the fixed tube 1 move backward together and press on the arc-shaped side 31 on the front side of the support tube 3, applying pressure to the arc-shaped side 31 on the front side of the support tube 3.

[0064] In this way, the front and rear sides of the support tube 3 are pressed by two rollers 56 respectively, that is, it is clamped by four rollers 56. The grooves 55 of the rollers 56 press on the arc-shaped side 31 of the support tube 3, that is, the left and right sides of the support tube 3 are also clamped by the roller side 54. In this way, when the support tube 3 is raised and lowered, the clamping pressure of the four rollers 56 makes it stable and does not shake, so that the entire mechanism does not shake during the entire adjustment process.

[0065] Inside the fixed tube 1, a distance sensor is provided corresponding to the electric push rod 61. The distance sensor is connected to an instrument or display. Finally, the moving distance of the electric push rod 61, which is also the moving distance of the seat 5, is converted into the corresponding height and displayed on the instrument or display.

[0066] The various embodiments described in this specification are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrically adjustable lifting mechanism, characterized in that: The front side of the fixed tube is provided with a movable roller side through hole, and the rear side is provided with a fixed roller side through hole; The left and right sides of the fixed tube correspond to the side through holes of the movable rollers and have two opposite horizontal strip-shaped movable roller shaft adjustment through holes; the left and right sides of the fixed tube correspond to the side through holes of the fixed rollers and have two opposite fixed roller shaft mounting through holes. The electric linear actuator motor is fixedly connected to the fixed tube; the output shaft of the electric linear actuator motor is connected to the drive structure and drives the lifting and lowering of the electric linear actuator. The top of the electric push rod is fixedly connected to the lower surface of the sliding rail of the mechanism. The upper slide rail of the mechanism slides in cooperation with the lower slide rail of the mechanism. The functional component is fixed on the upper slide rail of the mechanism, and the electric push rod is located inside the support tube. The top of the support tube is fixed on the functional component. The front and rear sides of the support tube are vertical arc-shaped sides. The support tube is inserted into the fixed tube from above. The two wing plates extending from the bottom plate of the locking plate are respectively provided with lateral adjustment holes, and through holes are provided on the bottom plate. Adjustment nuts are fixed at the through holes. The wing plate is composed of a transition part located on the rear side and a wing plate main body located on the front side. The transition part is connected to the bottom plate, and the width of the transition part is smaller than the width of the wing plate main body. The roller assembly includes a roller shaft, and the roller is mounted on the roller shaft by bearings; the roller includes two roller sides, and the diameter of the roller gradually decreases from the roller sides to the center, forming a groove between the two roller sides; The fixing tube is inserted between the two wing plates of the locking plate, and the lateral adjustment hole opened on each wing plate is connected to the movable roller shaft adjustment through hole on the corresponding side of the fixing tube; A roller assembly is inserted into the side through hole of the movable roller assembly. The roller shafts on both sides of the roller assembly pass through the movable roller shaft adjustment through holes and the lateral adjustment holes located on both sides. The groove of the roller presses against the arc-shaped side of the front side of the support tube. A roller assembly is inserted into the side through hole of the fixed roller. The roller shafts on both sides of the roller assembly pass through the mounting through holes of the fixed roller shafts on both sides. The groove of the roller presses against the arc-shaped side of the rear side of the support tube. An adjusting screw and an adjusting nut are screwed together. After the adjusting screw passes through the adjusting nut, the bottom end of the adjusting screw rests against the rear side of the fixed tube.

2. The electrically adjustable lifting mechanism as described in claim 1, characterized in that: The front side of the fixed tube has two vertically arranged movable roller side through holes; the opposite rear side has two vertically arranged fixed roller side through holes; the left and right sides of the fixed tube have two opposite horizontal strip-shaped movable roller shaft adjustment through holes corresponding to each movable roller side through hole; the left and right sides of the fixed tube have two opposite fixed roller shaft mounting through holes corresponding to each fixed roller side through hole; each wing plate has two vertically arranged horizontal adjustment holes, which communicate with the movable roller shaft adjustment through holes on the corresponding side of the fixed tube; two rollers are installed on the front and rear sides of the fixed tube respectively.

3. The electrically adjustable lifting mechanism as described in claim 1, characterized in that: The groove formed between the two sides of the roller has an arc-shaped cross-section.

4. The electrically adjustable lifting mechanism as described in claim 1, characterized in that: The outer surface of the support tube has a scale from top to bottom.

5. The electrically adjustable lifting mechanism as described in claim 1, characterized in that: A distance sensor is installed inside the fixed tube corresponding to the electric push rod, and the distance sensor is connected to an instrument or display.

6. The electrically adjustable lifting mechanism as described in claim 1, characterized in that: A protective cover is installed at the end of the roller shaft.

7. The electrically adjustable lifting mechanism as described in claim 1, characterized in that: The left and right sides of the support tube are held by the sides of the rollers.

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