Running belt supporting plate applied to treadmill

Abstract

The utility model discloses a running belt supporting plate applied to a running machine, which comprises a base plate and a wear-resistant layer, the wear-resistant layer is combined and fixedly connected to the upper end face of the base plate, the upper end face of the wear-resistant layer is provided with a plurality of grooves, and each groove is filled with a waxy lubricating material. The waxy lubricating material lubricates a friction pair formed between the inner ring surface of a running belt of the treadmill and the upper end surface of the wear-resistant layer in a solid or liquid manner; furthermore, the waxy lubricating material filled in each groove protrudes out of the groove, and all the waxy lubricating materials protruding out of the groove are connected with one another to form a waxy lubricating layer covering the upper end face of the wear-resistant layer. The lubricating effect between the running belt and the running belt supporting plate is effectively improved, friction resistance is reduced, and the service life of the running machine is prolonged; therefore, the running belt can smoothly move for a long time in a fast and slow state, and a better experience effect of a sporter is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment manufacturing, in particular to a running belt support plate used for a treadmill. Background Art

[0002] When using the existing treadmill, a person's feet circulate on the running belt for running exercise, and the running belt is driven by a driving device to move in a circular motion. Since the person's feet need to step on the running belt, a running belt support plate needs to be provided in the middle of the closed running belt to support the running belt.

[0003] Due to the weight of the person, during the running process, the inner ring surface of the treadmill belt and the upper end surface of the treadmill belt support plate will rub against each other. If the friction coefficient of the friction pair between the cloth base of the treadmill belt and the upper end surface of the treadmill belt support plate is large, it will cause excessive friction resistance when running. In mild cases, the treadmill belt will speed up and slow down, the movement will not be smooth, and the experience will be bad; in severe cases, it will get stuck and pause, causing the athlete to fall. In some cases, the drive motor will burn out due to excessive current. In addition, if the friction resistance between the treadmill belt and the treadmill belt support plate is too large, the two will wear against each other faster and the service life will be greatly reduced.

[0004] In order to reduce the friction resistance between the plate and the belt, the current common practice is to apply silicone oil or other lubricants on the upper end surface of the treadmill support plate. Some manufacturers also randomly provide a bottle of lubricant for users to add when the treadmill resistance is too large.

[0005] However, by applying silicone oil or other lubricants on the upper end surface of the running belt support plate, there are still the following major problems:

[0006] 1. Silicone oil or other lubricants are easy to evaporate and lose their lubricating effect after a period of time. The effective lubrication time is short and needs to be added repeatedly. However, the gap between the inner ring surface of the treadmill belt and the upper end surface of the treadmill belt support plate is small, so it is inconvenient to add lubricant. There is also a certain risk when adding it, which can easily pinch your hands.

[0007] 2. It is difficult to apply lubricant evenly on the end surface of the running belt support plate. The areas where too much lubricant is applied are very slippery and easy to overflow, causing hygiene problems. If too little lubricant is applied or some areas are not applied, they are still not slippery and the running is not smooth.

[0008] 3. Lubricants easily absorb dust. Lubricants that adhere to dust have basically no lubricating effect. They will eventually adhere to the cloth base of the treadmill, further increasing the friction coefficient of the cloth-plate friction pair, increasing the wear of the treadmill and the treadmill support plate, thereby reducing the service life of the entire treadmill.

[0009] Therefore, the existing lubrication cooperation mode between the running belt and the running belt support plate still has the problems of short effective lubrication time, inconvenience in use, poor experience for athletes, and reduced service life of the treadmill.

[0010] In addition, the upper surface of the conventional running belt support plate currently produced by the same industry is flat and smooth, and the purpose is to reduce the friction between the running belt support plate and the rotating running belt. However, it is not known that the friction contact area between the inner ring surface of the running belt and the upper surface of the running belt support plate (face to face) is larger, and the downward pressure of the athlete's feet on the running belt not only increases the friction resistance, but also the powder and dust generated after long-term use, which is the main reason for the running belt to rotate unsmoothly or even get stuck. In addition, the running belt's fast and slow movement state will also have different requirements for the lubrication effect, and the traditional method of adding lubricants cannot change the lubrication state. Utility Model Content

[0011] The technical problem to be solved by the utility model is to provide a running belt support plate applied to a treadmill, which effectively prolongs the lubrication effect between the running belt and the running belt support plate, reduces friction resistance, prolongs the service life of the treadmill, and enables the running belt to move smoothly for a long time and in fast and slow states, ensuring that athletes have a better experience.

[0012] To achieve the above-mentioned purpose, the technical solution of the utility model is: a running belt support plate used for a treadmill, comprising a base plate and a wear-resistant layer, the wear-resistant layer being fixedly connected to the upper end surface of the base plate, the upper end surface of the wear-resistant layer being provided with a plurality of grooves, each groove being filled with a wax lubricant, and the wax lubricant providing lubrication in a solid or liquid state to the friction pair formed between the inner annular surface of the running belt of the treadmill and the upper end surface of the wear-resistant layer.

[0013] As a further improvement, the wax lubricant filled in each groove protrudes out of the groove, and all the wax lubricants protruding out of the groove are connected to each other to form a wax lubricant layer covering the upper end surface of the wear-resistant layer. The wax lubricant layer further extends the lubrication effect between the treadmill and the treadmill support plate, further reduces the friction resistance between the treadmill and the treadmill support plate, reduces the mutual wear between the treadmill and the treadmill support plate, reduces the workload of the treadmill drive motor, and further extends the life of the treadmill.

[0014] As a further improvement, the plurality of grooves are irregularly distributed on the upper end surface of the wear-resistant layer, which can better delay the wax lubricant in the grooves from being carried away compared to the regular distribution; secondly, the irregular distribution of the grooves can also reduce wind noise.

[0015] Preferably, the plurality of grooves include grooves of different shapes and depths, so as to better balance the strength of the wear-resistant layer and the consumption rate of the wax lubricant in the grooves.

[0016] As a further improvement, the plurality of grooves are formed by molding, and the inner side surface of each groove is provided with a demoulding slope, so as to improve the preparation efficiency of the plurality of grooves and reduce the impact on the environment.

[0017] Preferably, the distance between the lowest point of the groove and the upper end surface of the wear-resistant layer is 0.01 mm-0.20 mm.

[0018] Preferably, the substrate is a density fiberboard, the wear-resistant layer is made of melamine board or electrical board, and the thickness of the wear-resistant layer is less than the thickness of the substrate.

[0019] Preferably, the wear-resistant layer has a thickness of 1 / 10-1 / 8 of the thickness of the substrate.

[0020] Furthermore, the wear-resistant layer is fixedly connected to the upper end surface of the substrate by heat-compression bonding, or the wear-resistant layer is fixedly connected to the upper end surface of the substrate by bonding with an adhesive layer.

[0021] Preferably, the wax lubricant is paraffin or a paraffin mixture.

[0022] The utility model provides a plurality of grooves on the upper end surface of the wear-resistant layer, and each groove is filled with wax lubricant. Thus, due to the presence of the plurality of grooves, the contact area between the inner ring surface of the treadmill and the upper end surface of the wear-resistant layer of the treadmill support plate is reduced, thereby reducing the friction force. When the moving speed of the treadmill is low and the heat generated by the friction makes the surrounding temperature lower than the melting point of the wax lubricant, the wax lubricant provides lubrication to the friction pair formed between the inner ring surface of the treadmill and the upper end surface of the wear-resistant layer in a solid state, thereby adapting to the slower moving state of the treadmill. When the moving speed of the treadmill is high and the heat generated by the friction makes the temperature higher than the melting point of the wax lubricant, part of the wax lubricant absorbs heat and melts to form a liquid state, thereby providing lubrication to the friction pair formed between the inner ring surface of the treadmill and the upper end surface of the wear-resistant layer of the treadmill in a liquid state, thereby further improving the lubrication effect and adapting to the fast moving state of the treadmill. This effectively reduces the friction resistance between the belt and the plate, allowing the running belt to move smoothly for a long time and at a fast or slow speed, ensuring that the runners have a good experience, and can reduce the wear of the running belt, reduce the load of the drive motor, and extend the service life of the running belt and the drive motor, thereby extending the service life of the treadmill; and when the treadmill is stopped, the ambient temperature drops, and the wax lubricant in the groove will re-solidify and return to its original state. This can effectively extend the lubrication effect between the running belt and the running belt support plate, better adapt to the different working conditions of the running belt, and allow the running belt to move smoothly for a long time and at a fast or slow speed, ensuring that the runners have a good experience.

[0023] The running belt support plate of the utility model is wear-resistant, has low friction resistance and high lubricity, increases and prolongs the lubrication effect between the running belt and the running belt, and the running belt support plate of the utility model does not need to add lubricant frequently like a traditional treadmill, simplifies the operation and maintenance steps of the treadmill, and prevents abnormal wear of the running belt and the running belt support plate and overload damage to the treadmill drive motor.

[0024] In addition, compared with traditional lubricants, solidified wax lubricants are less likely to absorb dust, easier to clean, and can maintain the lubrication effect for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model cooperating with the running belt of the treadmill;

[0026] Figure 2 It is a top view of the first embodiment of the utility model;

[0027] Figure 3 yes Figure 2 AA section view;

[0028] Figure 4 yes Figure 3 A magnified view of point B;

[0029] Figure 5 It is a top view of the first embodiment of the utility model, which hides the wax lubricating layer and the wax lubricating material in the groove;

[0030] Figure 6 yes Figure 5 CC section view;

[0031] Figure 7 This is a cross-sectional structural diagram of the second embodiment of the utility model;

[0032] Figure 8 yes Figure 7 Enlarged view of point D. DETAILED DESCRIPTION

[0033] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Embodiment 1 Figures 1 to 6As shown, a running belt support plate used for a treadmill includes a base plate 1 and a wear-resistant layer 2, wherein the wear-resistant layer 2 is fixedly connected to the upper end surface of the base plate 1; the base plate 1 is made of density fiberboard (MDF board), and the wear-resistant layer 2 is made of melamine board or electrical board, and the thickness of the wear-resistant layer 2 is less than the thickness of the base plate 1, and the thickness of the wear-resistant layer 2 is about 1 / 10-1 / 8 of the thickness of the base plate 1; a plurality of grooves 3 are provided on the upper end surface of the wear-resistant layer 2, and the wear-resistant layer 2 is fixedly connected to the upper end surface of the base plate 1 by molding and heating, and the plurality of grooves 3 are also formed by molding at one time, and the inner side surface of each groove 3 is provided with a demolding slope.

[0035] Each groove 3 is filled with a wax lubricant 4, which provides lubrication in a solid or liquid state to the friction pair formed between the inner annular surface of the running belt 10 of the treadmill and the upper end surface of the wear-resistant layer 2.

[0036] The wax lubricant 4 filled in each groove 3 protrudes out of the groove 3 , and all the wax lubricants 4 protruding out of the groove 3 are connected to each other to form a wax lubricant layer 4 a covering the upper end surface of the wear-resistant layer 2 .

[0037] The plurality of grooves 3 are irregularly distributed on the upper end surface of the wear-resistant layer 2 to delay the wax lubricant 4 in the grooves 3 from being carried away and reduce wind noise; the plurality of grooves 3 include grooves 3 of different shapes and depths. The distance between the lowest point of the groove 3 and the upper end surface of the wear-resistant layer 2 is 0.01 mm-0.20 mm.

[0038] Preferably, the wax lubricant 4 is paraffin or a paraffin mixture.

[0039] The method for preparing the running belt support plate used in a treadmill comprises:

[0040] Step 1: Place the substrate 1 on the lower mold of the first mold, and cover the upper end surface of the substrate 1 with the wear-resistant layer 2 material;

[0041] Step 2: The upper mold of the first mold is pressed down and heated, so that the wear-resistant layer 2 is fixedly connected to the upper end surface of the substrate 1 and a plurality of grooves 3 are formed on the upper end surface of the wear-resistant layer 2. After the upper mold of the first mold is pressed down for a set time, it is raised to open the mold;

[0042] Step three, place the substrate 1 combined with the wear-resistant layer 2 on the lower mold of the second mold, spread the powdered wax lubricant 4 on the upper end surface of the wear-resistant layer 2, and then press the upper mold of the second mold downward and heat it, so that the powdered wax lubricant 4 hot melts and fills the multiple grooves 3; after the upper mold of the second mold is pressed down for a set time, it rises to open the mold, and the hot-melt wax lubricant 4 solidifies after cooling.

[0043] The lower end surface of the upper mold of the first mold is provided with a plurality of convex parts, and the upper end surface of the wear-resistant layer 2 is squeezed by the plurality of convex parts to form a plurality of grooves 3. At the same time, a heating device is also provided on the upper mold of the first mold, and the heating device transfers heat to the wear-resistant layer 2 through the upper mold, and the wear-resistant layer 2 is combined and fixedly connected to the upper end surface of the substrate 1 by pressurization and heating, and a plurality of grooves 3 are formed on the upper end surface of the wear-resistant layer 2; the lower end surface of the upper mold of the second mold is planar, and a heating device is also provided on the upper mold of the second mold, and the heating device transfers heat to the powdered wax lubricant 4 through the upper mold of the second mold so that the hot-melt wax lubricant 4 fills the plurality of grooves 3. Step 3 The hot-melt wax lubricant 4 also overflows each groove 3 and then adheres to each other and solidifies on the upper end surface of the wear-resistant layer 2 after cooling to form a wax lubricant layer 4a, and the hot-melt wax lubricant 4 is solidified by blowing cooling.

[0044] Secondly, if the material of the wear-resistant layer 2 is a material without thermal adhesiveness, in step 1, before the wear-resistant layer 2 material covers the upper end surface of the substrate 1, a layer of adhesive layer needs to be coated on the upper end surface of the substrate 1, so that the wear-resistant layer 2 is bonded and fixed to the upper end surface of the substrate 1 through the adhesive layer.

[0045] The embodiment is mounted on a treadmill and cooperates with the running belt as follows. Figure 1 When the treadmill 10 rotates, since the upper end surface of the wear-resistant layer 2 is covered with a wax lubricating layer 4a, the treadmill 10 actually rubs against the wax lubricating layer 4a. The wax lubricating layer 4a provides good lubrication for the inner surface of the treadmill 10, effectively reducing the friction resistance, so that the treadmill 10 can circulate smoothly for a long time, ensuring that the athletes have a better experience.

[0046] When the moving speed of the treadmill 10 is low and the heat generated by friction makes the surrounding temperature lower than the melting point of the wax lubricant 4, the wax lubricant 4 provides lubrication to the friction pair formed between the inner ring surface of the treadmill 10 and the upper end surface of the wear-resistant layer 2 in a solid state, adapting to the slower moving state of the treadmill 10; when the moving speed of the treadmill 10 is fast, the heat generated by friction is large, making the surrounding temperature higher than the melting point of the wax lubricant 4, part of the wax lubricant 4 absorbs heat and melts to form a liquid, and then provides lubrication to the friction pair formed between the inner ring surface of the treadmill 10 and the upper end surface of the wear-resistant layer 2 in a liquid state, and the lubrication effect is further improved, adapting to the faster moving state of the treadmill 10. In this way, the working state of the running belt 10 can be effectively adapted, and the friction resistance between the belt and the plate can be effectively reduced, so that the running belt can move smoothly for a long time and in both fast and slow states, ensuring that the runners have a better experience effect; secondly, the wear of the running belt 10 and the upper end surface of the wear-resistant layer 2 can be reduced, the load of the driving motor can be reduced, and the service life of the running belt 10, the wear-resistant layer 2 and the driving motor can be extended, thereby extending the service life of the treadmill. When the treadmill is stopped or the running belt 10 moves slower, the heat generated by friction is reduced or zero, and the melted wax lubricant 4 will return to a solidified state due to the temperature drop.

[0047] After long-term use, when the wax lubricant 4 of the wax lubricating layer 4a is consumed, when the treadmill 10 rotates, the wax lubricant 4 in the groove 3 and the upper end surface of the inner wear layer 2 between the grooves 3 are rubbed at the same time. Therefore, during the rotation of the treadmill 10, when the friction is small and the surrounding temperature is still lower than the melting point of the wax lubricant 4, the wax lubricant 4 in the groove 3 provides lubrication in a solid state; when the treadmill 1 and the upper end surface of the inner wear layer 2 are rubbed for a long time and quickly and continuously, the surrounding environment temperature rises to exceed the melting point of the wax lubricant 4, and part of the wax lubricant 4 absorbs heat and melts to form a liquid, and provides lubrication in a liquid state.

[0048] When the running belt 10 rotates slowly or the treadmill stops being used, the ambient temperature decreases, and the melted wax lubricant 4 hidden in the groove 3 returns to a solidified state due to the decrease in temperature, thereby ensuring that lubrication can be provided for a long time.

[0049] Embodiment 2 Figure 7 , Figure 8 As shown, a running belt support plate used for a treadmill is different from the first embodiment in that a wax lubricating layer is not formed on the upper end surface of the wear-resistant layer 2, and the rest is the same.

[0050] The wax lubricant 4 hidden in the groove 3 provides a long-term lubricant supply, and can also maintain the lubrication effect between the running belt and the running belt support plate for a long time. The running belt support plate has wear resistance, low friction resistance, and high lubricity. In addition, due to the presence of each groove 3, the contact area between the inner annular surface of the running belt and the upper end surface of the wear-resistant layer 2 is small, and the friction resistance is also small.

[0051] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A running belt support plate for a treadmill, comprising a base plate and a wear-resistant layer, wherein the wear-resistant layer is fixedly connected to the upper end surface of the base plate, and is characterized in that: The upper end surface of the wear-resistant layer is provided with a plurality of grooves, each of which is filled with wax lubricant, which provides lubrication in solid or liquid form to the friction pair formed between the inner ring surface of the running belt of the treadmill and the upper end surface of the wear-resistant layer.

2. The running belt support plate for a treadmill according to claim 1, characterized in that: The wax lubricant filled in each groove protrudes out of the groove, and all the wax lubricants protruding out of the groove are connected to each other to form a wax lubricating layer covering the upper end surface of the wear-resistant layer.

3. The running belt support plate for a treadmill according to claim 1, characterized in that: The plurality of grooves are irregularly distributed on the upper end surface of the wear-resistant layer.

4. The running belt support plate for a treadmill according to claim 1, characterized in that: The plurality of grooves include grooves of different shapes and depths.

5. The running belt support plate for a treadmill according to claim 1, characterized in that: The plurality of grooves are formed by molding, and the inner side surface of each groove is provided with a demoulding slope.

6. The running belt support plate for a treadmill according to claim 1, characterized in that: The distance between the lowest point of the groove and the upper end surface of the wear-resistant layer is 0.01mm-0.20mm.

7. The running belt support plate for a treadmill according to claim 1, characterized in that: The substrate is a density fiberboard, the wear-resistant layer is made of melamine board or electrical board, and the thickness of the wear-resistant layer is less than the thickness of the substrate.

8. The running belt support plate used for a treadmill according to claim 7, characterized in that: The thickness of the wear-resistant layer is 1 / 10-1 / 8 of the thickness of the substrate.

9. The running belt support plate for a treadmill according to claim 1, characterized in that: The wear-resistant layer is fixedly connected to the upper end surface of the substrate by heat-compression bonding, or the wear-resistant layer is fixedly connected to the upper end surface of the substrate by bonding with an adhesive layer.

10. A running belt support plate for a treadmill according to any one of claims 1 to 9, characterized in that: The waxy lubricant is paraffin.

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