A sliding structure on an elliptical machine
Patent Information
- Application Number
- CN202620003720.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-05
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2036-01-05
AI Technical Summary
[0003]但是，由于在使用过程中，滚轮在导轨上滑动较为频繁，从而和导轨之间产生一定的磨损，使滚轮和导轨之间阻力增大，从而影响锻炼时的阻力控制，影响锻炼体验
[0013]有益效果是：当滚轮移动至导槽后端时，滚轮挤压海绵，将海绵内润滑油挤出涂抹至滚轮表面，且在从滚轮接触并挤压海绵到停止移动的过程中，滚轮在导槽内滚动，使得滚轮和海绵的接触位置切换，使得海绵对滚轮表面涂抹润滑油的同时对滚轮部分表面进行清理。由于滚轮和导槽之间为滚动的同时进行一定的滑动，使得每次滚轮和海绵之间接触部分进行切换，在滚轮多次往复运动后，海绵可将滚轮整个表面进行清理和涂抹润滑油。
Smart Images
Figure CN224904591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elliptical machine technology, and specifically to a sliding structure on an elliptical machine. Background Technology
[0002] The front-drive elliptical trainer is one of the most common fitness equipment in modern home gyms. Its name comes from its core drive flywheel located directly in front of the user. This layout makes it compact and relatively space-saving, ideal for home use. The flywheel, located at the very front of the machine, is the source of inertia for the entire system. A forearm is connected to the front of the pedal support via bearings. Each pedal support has a set of rollers underneath, which are restricted to sliding back and forth on two long guide rails. This ensures that the pedals can only move in a straight line in the forward and backward direction. The rollers are eccentrically hinged to the flywheel via the forearm. Its working principle is that the foot pedals drive the front flywheel to rotate, while the rollers under the pedals are restricted to sliding on fixed guide rails, thus creating a smooth elliptical motion trajectory.
[0003] However, during use, the rollers slide frequently on the guide rails, resulting in wear and tear between them. This increases the resistance between the rollers and the guide rails, affecting resistance control during exercise and impacting the workout experience. Utility Model Content
[0004] This invention provides a sliding structure for an elliptical machine to solve the above-mentioned problems.
[0005] This utility model adopts the following technical solution: a sliding structure on an elliptical machine, including an elliptical machine body; the elliptical machine body includes a frame; a flywheel is rotatably mounted on the front end of the frame; two rotating shafts are eccentrically arranged on the flywheel; the two rotating shafts are symmetrically arranged about the axis of the flywheel; swing arms are provided on both sides of the flywheel; the swing arms are arranged front and rear, with the front end rotatably mounted on the rotating shaft and the rear end provided with a sliding assembly; the sliding assembly includes a guide plate and a roller; the guide plate is fixed on the frame; the guide plate is provided with a guide groove extending front and rear; the roller is rotatably mounted on the rear end of the swing arm and is located above the guide plate; the roller and the guide groove are slidably engaged; an auxiliary structure is provided at the rear end of the guide groove; the auxiliary structure is used to apply lubricating oil to the roller to reduce the friction when the roller rolls in the guide groove.
[0006] Furthermore, the auxiliary structure includes an auxiliary shell; an auxiliary cavity is provided inside the auxiliary shell; an installation port is opened at the front end of the auxiliary cavity; the installation port faces the roller; a sponge is movably disposed within the installation port; an oil supply unit is provided behind the sponge; the oil supply unit is used to supply lubricating oil to the sponge; when the roller moves to the rear end of the guide groove, the roller squeezes the sponge, squeezing out the lubricating oil inside the sponge and applying it to the surface of the roller. During the process from the roller contacting and squeezing the sponge to stopping, the roller rolls within the guide groove, causing the contact position between the roller and the sponge to switch, allowing the sponge to apply lubricating oil to the roller surface while simultaneously cleaning part of the roller surface. Because the roller and the guide groove slide simultaneously while rolling, the contact area between the roller and the sponge switches each time. After multiple reciprocating movements of the roller, the sponge can clean and apply lubricating oil to the entire surface of the roller.
[0007] Furthermore, the oil supply unit includes a partition; the partition is located behind the sponge; the partition is arc-shaped, with its convex surface facing the sponge and abutting against the sponge; the partition is elastic; the partition is fixedly connected to the cavity wall of the auxiliary cavity, dividing the rear end of the auxiliary cavity into an oil supply cavity; the oil supply cavity is filled with lubricating oil; the upper end of the oil supply cavity is provided with an oil filler port and a one-way valve; the oil filler port has a cap; the one-way valve allows outside air to enter the oil supply cavity and prevents air in the oil supply cavity from rushing to the outside; an oil pipe is provided in the oil supply cavity; one end of the oil pipe extends to the bottom of the oil supply cavity and is below the lubricating oil level, and the other end extends upwards from the auxiliary shell and extends above the sponge; an oil distribution cavity is provided above the sponge; the cavity wall of the oil distribution cavity connected to the sponge is provided with multiple oil outlet holes; the oil distribution cavity and the oil pipe are connected. When the roller squeezes the sponge, the sponge is deformed, causing lubricating oil to overflow. Simultaneously, the sponge is pushed backward, pressing against the partition. This deformation causes the partition to deform backward, compressing the oil supply chamber. The increased air pressure in the oil supply chamber forces the lubricating oil out through the oil pipe and into the oil distribution chamber. The oil is then absorbed by the sponge through the oil outlet, thus supplying oil to the sponge. After the roller moves forward, the partition returns to its original position, and outside air enters the oil supply chamber through the one-way valve.
[0008] Furthermore, the front end of the sponge is concave and rounded to fit the roller and increase the contact area with the roller.
[0009] Furthermore, the vertical cross-section of the guide groove is arc-shaped.
[0010] Furthermore, the side walls of the oil supply chamber are transparent.
[0011] Furthermore, the side wall of the oil supply chamber is provided with graduations.
[0012] Furthermore, a rubber layer is attached to the surface of the roller.
[0013] The beneficial effects are as follows: When the roller moves to the rear end of the guide groove, it squeezes the sponge, expelling the lubricant from the sponge and applying it to the roller surface. During the process from the moment the roller contacts and squeezes the sponge until it stops moving, the roller rolls within the guide groove, causing the contact position between the roller and the sponge to change. This allows the sponge to apply lubricant to the roller surface while simultaneously cleaning part of the roller surface. Because the roller and guide groove undergo a certain degree of sliding while rolling, the contact area between the roller and the sponge changes each time. After multiple reciprocating movements of the roller, the sponge can clean and apply lubricant to the entire surface of the roller. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of an embodiment of the sliding structure on an elliptical machine according to the present invention; Figure 2 This is a side view of an embodiment of the present invention; Figure 3 This is a cross-sectional view of an embodiment of the present utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0016] In the diagram: 100, swing arm; 110, flywheel; 111, shaft; 200, guide plate; 210, guide groove; 220, roller; 300, auxiliary shell; 310, sponge; 400, partition; 410, oil supply chamber; 411, oil filler port; 412, one-way valve; 420, oil pipe; 430, oil distribution chamber. Detailed Implementation
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] An embodiment of the sliding structure on an elliptical machine according to this utility model, such as... Figures 1 to 4As shown, the elliptical trainer includes a frame; a flywheel 110 is rotatably mounted on the front end of the frame; two eccentrically mounted rotating shafts 111 are arranged on the flywheel 110; the two rotating shafts 111 are symmetrically arranged about the axis of the flywheel 110; swing arms 100 are provided on both sides of the flywheel 110; the swing arms 100 are arranged front and rear, with the front end rotatably mounted on the rotating shafts 111 and the rear end provided with a sliding assembly; the sliding assembly includes a guide plate 200 and a roller 220; the guide plate 200 is fixed to the frame; the guide plate 200 has a guide groove 210 extending front and rear; the vertical cross-section of the guide groove 210 is arc-shaped. The roller 220 is rotatably mounted on the rear end of the swing arm 100 and is above the guide plate 200; the roller 220 and the guide groove 210 are in sliding engagement; an auxiliary structure is provided at the rear end of the guide groove 210; the auxiliary structure is used to apply lubricating oil to the roller 220 to reduce the friction when the roller 220 rolls in the guide groove 210.
[0019] The auxiliary structure includes an auxiliary shell 300; an auxiliary cavity is provided inside the auxiliary shell 300; an installation port is opened at the front end of the auxiliary cavity; the installation port faces the roller 220; a sponge 310 is movably disposed inside the installation port; the front end of the sponge 310 is a concave arc shape to fit the roller 220 and increase the contact area with the roller 220. An oil supply unit is provided behind the sponge 310; the oil supply unit is used to supply lubricating oil to the sponge 310; when the roller 220 moves to the rear end of the guide groove 210, the roller 220 squeezes the sponge 310, squeezing out the lubricating oil inside the sponge 310 and applying it to the surface of the roller 220. During the process from the time the roller 220 contacts and squeezes the sponge 310 to the time it stops moving, the roller 220 rolls in the guide groove 210, causing the contact position between the roller 220 and the sponge 310 to switch, so that the sponge 310 applies lubricating oil to the surface of the roller 220 while cleaning part of the surface of the roller 220. Because the roller 220 and the guide groove 210 slide together while rolling, the contact area between the roller 220 and the sponge 310 changes each time. After the roller 220 moves back and forth many times, the sponge 310 can clean and apply lubricant to the entire surface of the roller 220.
[0020] The oil supply unit includes a partition 400; the partition 400 is located behind the sponge 310; the partition 400 is arc-shaped, with its convex surface facing the sponge 310 and abutting against the sponge 310; the partition 400 is elastic; the partition 400 is fixedly connected to the cavity wall of the auxiliary cavity, and divides the rear end of the auxiliary cavity into an oil supply cavity 410; the oil supply cavity 410 is filled with lubricating oil; the upper end of the oil supply cavity 410 is provided with an oil filling port 411 and a one-way valve 412; the oil filling port 411 has a cap; the one-way valve 412 allows... Outside air enters the oil supply chamber 410, preventing air inside the oil supply chamber 410 from rushing to the outside; an oil pipe 420 is provided inside the oil supply chamber 410; one end of the oil pipe 420 extends to the bottom of the oil supply chamber 410 and is below the lubricating oil surface, and the other end extends upward out of the auxiliary shell 300 and extends above the sponge 310; an oil distribution chamber 430 is provided above the sponge 310; multiple oil outlet holes are provided on the cavity wall of the oil distribution chamber 430 connected to the sponge 310; the oil distribution chamber 430 and the oil pipe 420 are connected. When roller 220 compresses sponge 310, sponge 310 is deformed, and lubricating oil overflows from it. Simultaneously, sponge 310 is pushed backward, pushing against partition 400. Partition 400 deforms backward, compressing oil supply chamber 410, increasing the air pressure within it. This causes the lubricating oil in oil supply chamber 410 to be discharged through oil pipe 420 and then to oil distribution chamber 430. The oil is then absorbed by sponge 310 through the oil outlet, thus supplying oil to sponge 310. After roller 220 moves forward, partition 400 returns to its original position, and outside air enters oil supply chamber 410 through one-way valve 412.
[0021] In this embodiment, a rubber layer is attached to the surface of the roller 220. The side wall of the oil supply chamber 410 is transparent. Graduation is provided on the side wall of the oil supply chamber 410 for easy observation of whether oiling is needed.
[0022] Based on the above embodiments, the working principle and process of this utility model are as follows: When the roller 220 squeezes the sponge 310, the sponge 310 is deformed by the compression, and lubricating oil overflows from the sponge 310, squeezing the lubricating oil inside the sponge 310 onto the surface of the roller 220. During the process from when the roller 220 contacts and squeezes the sponge 310 until it stops moving, the roller 220 rolls within the guide groove 210, causing the contact position between the roller 220 and the sponge 310 to switch. This allows the sponge 310 to apply lubricating oil to the surface of the roller 220 while simultaneously cleaning a portion of its surface. Because the roller 220 and the guide groove 210 slide simultaneously while rolling, the contact area between the roller 220 and the sponge 310 switches each time. After multiple reciprocating movements of the roller 220, the sponge 310 can clean and apply lubricating oil to the entire surface of the roller 220.
[0023] On the other hand, the sponge 310 is pushed backward, pushing the partition 400. The partition 400 deforms backward, compressing the oil supply chamber 410. The air pressure in the oil supply chamber 410 increases, causing the lubricating oil in the oil supply chamber 410 to be discharged through the oil pipe 420 and discharged to the oil distribution chamber 430. Then, it is absorbed by the sponge 310 through the oil outlet, thus supplying oil to the sponge 310. After the roller 220 moves forward, the partition 400 returns to its original position, and outside air enters the oil supply chamber 410 through the one-way valve 412.
[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sliding structure for an elliptical machine, characterized in that: The elliptical trainer includes a frame; a flywheel is rotatably mounted on the front end of the frame; two eccentrically mounted axles are mounted on the flywheel; the two axles are symmetrically arranged about the flywheel axis; swing arms are located on both sides of the flywheel; the swing arms are positioned front and rear, with the front end rotatably mounted on the axle and the rear end having a sliding assembly; the sliding assembly includes a guide plate and a roller; the guide plate is fixed to the frame; the guide plate has guide grooves extending front and rear; the roller is rotatably mounted on the rear end of the swing arm and is positioned above the guide plate; the roller and the guide groove are in sliding engagement; an auxiliary structure is located at the rear end of the guide groove; the auxiliary structure is used to apply lubricating oil to the roller.
2. The sliding structure on an elliptical machine according to claim 1, characterized in that: The auxiliary structure includes an auxiliary shell; The auxiliary housing has an auxiliary cavity; the front end of the auxiliary cavity has an installation port; the installation port faces the roller; a sponge is provided inside the installation port that can move back and forth; An oil supply unit is located at the rear of the sponge; the oil supply unit is used to supply lubricating oil to the sponge.
3. The sliding structure on an elliptical machine according to claim 2, characterized in that: The oil supply unit includes a partition; the partition is located behind the sponge; the partition is arc-shaped, with its convex surface facing the sponge and abutting against it; the partition is elastic; the partition is fixedly connected to the cavity wall of the auxiliary cavity, dividing the rear end of the auxiliary cavity into an oil supply cavity; the oil supply cavity is filled with lubricating oil; the upper end of the oil supply cavity is provided with an oil filler port and a one-way valve; the oil filler port has a cap; the one-way valve allows outside air to enter the oil supply cavity and prevents air in the oil supply cavity from rushing to the outside; an oil pipe is provided in the oil supply cavity; one end of the oil pipe extends to the bottom of the oil supply cavity and is below the lubricating oil level, and the other end extends upwards from the auxiliary shell and extends above the sponge; an oil distribution cavity is provided above the sponge; the cavity wall of the oil distribution cavity connected to the sponge is provided with multiple oil outlet holes; the oil distribution cavity and the oil pipe are connected.
4. The sliding structure on an elliptical machine according to claim 3, characterized in that: The front end of the sponge is a concave, rounded shape.
5. The sliding structure on an elliptical machine according to claim 1, characterized in that: The vertical cross-section of the guide channel is arc-shaped.
6. The sliding structure on an elliptical machine according to claim 3, characterized in that: The side walls of the oil supply chamber are transparent.
7. The sliding structure on an elliptical machine according to claim 6, characterized in that: The side wall of the oil supply chamber is marked with graduations.
8. The sliding structure on an elliptical machine according to claim 1, characterized in that: The roller surface is covered with a rubber layer.