A treadmill roller that prevents belt slippage

Abstract

This utility model discloses a treadmill roller that prevents belt slippage, comprising: two bearing seats, each bearing seat having a support shaft rotatably connected within it, and the two support shafts being fixedly connected to both ends of the roller body, with an external motor fixedly connected to the outer end of one of the support shafts; a second horizontal plate fixedly connected to one side of the outer wall of the two bearing seats; two inner sleeves fixedly connected to the same side of the outer wall of the two bearing seats; two outer sleeves movably fitted onto each inner sleeve; two springs fixedly connected between the inner sleeve and the outer sleeve; a first horizontal plate fixedly connected to the same side of the two outer sleeves; and a hydraulic cylinder fixedly mounted on the first horizontal plate, with a pressure sensing plate installed at its output end. This utility model discloses a treadmill roller that prevents belt slippage, which can monitor belt abnormalities in real time and adjust the roller position accordingly to maintain belt tension, thus extending the belt's service life.

Description

Technical Field

[0001] This utility model relates to the field of treadmill technology, and in particular to a treadmill roller that can prevent belt slippage. Background Technology

[0002] Treadmills typically use rotating rollers to drive an external belt to move, thus enabling the treadmill to operate.

[0003] Over long-term use, the belt outside the roller will experience prolonged stress, causing the molecular chains of the rubber or polyurethane material to break, reducing its elastic modulus, and gradually losing its resilience, resulting in irreversible tensile deformation. At this point, the connection between the roller and the belt is unstable, which can lead to the belt detaching from the roller during use, causing abnormal belt conveying. Utility Model Content

[0004] This utility model discloses a treadmill roller that can prevent belt slippage, aiming to solve the technical problem that the connection between the roller and the belt is not stable after long-term use, which can cause the belt to detach from the roller during use and cause abnormal belt conveying.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A treadmill roller designed to prevent belt slippage includes: two bearing seats, each bearing seat having a support shaft rotatably connected within it, and the two support shafts being fixedly connected to both ends of the roller body, with an external motor fixedly connected to the outer end of one of the support shafts; a second horizontal plate fixedly connected to one side of the outer wall of the two bearing seats; two inner sleeves fixedly connected to the same side of the outer wall of the two bearing seats; two outer sleeves movably fitted onto each inner sleeve; two springs fixedly connected between the inner sleeve and the outer sleeve; a first horizontal plate fixedly connected to the same side of the two outer sleeves; and a hydraulic cylinder fixedly mounted on the first horizontal plate, with a pressure sensing plate installed at its output end.

[0007] The output end of the hydraulic cylinder is fixedly connected to a pressure plate, and a groove is provided on one side of the inner wall of the pressure plate. The pressure sensing plate is fixedly installed in the groove and is movably attached to one side of the outer wall of the horizontal plate.

[0008] By incorporating springs, hydraulic cylinders, and pressure sensing plates, the hydraulic cylinders can push the roller body outward based on the pressure sensing plate's readings. This structure allows for adaptation even if the replacement belt has a certain degree of error. During use, if the belt becomes severely worn and loose, the pressure sensing plate can detect the belt abnormality in real time and control the hydraulic cylinders to move the roller body to support the belt, thereby extending the belt's service life.

[0009] In a preferred embodiment, the roller body further includes: a cork stopper fixedly connected to the groove one; a rubber sheet two, which is fixedly connected through the middle section of the rubber sheet one, and the elasticity of the rubber sheet two is greater than that of the rubber sheet one; and a plurality of needles fixedly connected to the inner wall of the rubber sheet two and movably inserted into the cork stopper.

[0010] The roller body also includes: two hook and loop fasteners, which are fixedly connected to both ends of the rubber sheet; and two hook and loop fasteners, which are fixedly attached to the inner walls of the two half rollers, with the hook and loop fasteners and the hook and loop fasteners being attached to each other.

[0011] By using a combination of hook and loop fasteners and a needle inserted into the cork from the bottom, the positions of both ends and the center can be fixed first, reducing the difficulty of installation while ensuring a tight fit of the rubber sheet.

[0012] In a preferred embodiment, the roller body includes: two half-rollers connected at their bottom outer walls by hinges, one half-roller being fixedly connected to two support shafts; and three grooves disposed on the inner walls of opposite sides of the two half-rollers, with multiple pressure teeth fixedly connected in each groove.

[0013] The roller body also includes: multiple semi-spiral tubes, which are fixedly connected to the two ends of two semi-rollers respectively; and two threaded sleeves, which are movably sleeved on two support shafts respectively, and movably engaged with the semi-spiral tubes on both sides respectively.

[0014] The roller body also includes: a rubber sheet, which is wrapped around the two half rollers and the two ends of the rubber sheet are inserted between the two half rollers, and multiple pressure teeth are pressed on both sides of the rubber sheet; and a groove, which is set on the inner wall of the bottom end of the two half rollers.

[0015] The roller body is equipped with an outer rubber sheet to prevent slippage and avoid continuous transmission of the roller to the treadmill belt. In addition, by twisting the screw sleeve, the two half rollers can be merged to clamp the rubber sheet. The structure is simple and makes it easier to replace the rubber sheet.

[0016] As described above, a treadmill roller designed to prevent belt slippage includes: two bearing seats, each with a support shaft rotatably connected within it, and the two support shafts fixedly connected to both ends of the roller body, with an external motor fixedly connected to the outer end of one of the support shafts; a second horizontal plate fixedly connected to one side of the outer wall of the two bearing seats; two inner sleeves fixedly connected to the same side of the outer wall of the two bearing seats; two outer sleeves movably fitted onto each inner sleeve; two springs fixedly connected between the inner sleeve and the outer sleeve; a first horizontal plate fixedly connected to the same side of the two outer sleeves; and a hydraulic cylinder fixedly mounted on the first horizontal plate, with a pressure sensing plate installed at its output end. The treadmill roller provided by this invention, designed to prevent belt slippage, has the technical effect of real-time monitoring of belt abnormalities and correspondingly moving the roller position to maintain belt tension, thereby extending the belt's service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a treadmill roller that can prevent belt slippage, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram showing the overall disassembly of a treadmill roller that can prevent belt slippage, as proposed in this utility model.

[0019] Figure 3 This is a schematic diagram showing the disassembled body of a treadmill roller that can prevent belt slippage, as proposed in this utility model.

[0020] Figure 4 This is a cross-sectional schematic diagram of the treadmill roller body that prevents belt slippage, as proposed in this utility model.

[0021] In the attached diagram: 1. Roller body; 2. Bearing seat; 3. Support shaft; 4. Horizontal plate one; 5. Hydraulic cylinder; 6. Outer sleeve; 7. Inner sleeve; 8. Horizontal plate two; 9. Pressure sensing plate; 10. Spring; 11. Pressure plate; 101. Screw sleeve; 102. Semi-screw tube; 103. Semi-roller; 104. Pressing tooth; 105. Hinge; 106. Cork stopper; 107. Groove one; 108. Rubber sheet one; 109. Velcro surface; 110. Needle; 111. Velcro adhesive surface; 112. Rubber sheet two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] The treadmill roller disclosed in this utility model, which can prevent belt slippage, is mainly used in treadmill applications.

[0024] Reference Figure 1 and Figure 2 A treadmill roller designed to prevent belt slippage, comprising:

[0025] Two bearing seats 2, each bearing seat 2 is rotatably connected to a support shaft 3, and the two support shafts 3 are fixedly connected to both ends of the drum body 1, with an external motor fixedly connected to the outer end of one of the support shafts 3.

[0026] Horizontal plate 28 is fixedly connected to the outer wall of one side of the two bearing seats 2;

[0027] Two inner sleeves 7 are respectively fixedly connected to the outer wall on the same side of the two bearing seats 2;

[0028] Two outer sleeves 6 are movably fitted onto the outside of each inner sleeve 7;

[0029] Two springs 10 are fixedly connected between the inner sleeve 7 and the outer sleeve 6, respectively;

[0030] Horizontal plate 4 is fixedly connected to the same side of the two outer sleeves 6;

[0031] Hydraulic cylinder 5 is fixedly installed on horizontal plate 4, and pressure sensing plate 9 is installed at its output end. Using the fixed position of horizontal plate 4 as a reference, it pulls the roller body 1 inward. At the same time, the position of hydraulic cylinder 5 is within the coverage area of ​​the belt. The setting of spring 10 can make roller body 1 quickly return to the initial position when hydraulic cylinder 5 retracts. Through the setting of hydraulic cylinder 5 and pressure sensing plate 9, the roller body 1 can be pushed outward by hydraulic cylinder 5 according to the sensing value of pressure sensing plate 9, so that it fits the inner side of the belt. When the resistance increases, it is determined that the position of roller body 1 is suitable for belt tension. Hydraulic cylinder 5 stops pushing and fixes the extension length as support. With this structure, if the belt to be replaced has a certain error, it can also be adapted. During use, if the belt is severely worn and becomes loose, the real-time monitoring of pressure sensing plate 9 can detect the belt abnormality and control hydraulic cylinder 5 to push roller body 1 to move to support the belt, thereby extending the service life of the belt.

[0032] Reference Figure 2 In a preferred embodiment, the output end of the hydraulic cylinder 5 is fixedly connected to a pressure plate 11, and a groove 2 is provided on one side of the inner wall of the pressure plate 11. The pressure sensing plate 9 is fixedly installed in the groove 2, and the pressure sensing plate 9 is movably attached to one side of the outer wall of the horizontal plate 2 8.

[0033] Reference Figure 3 In a preferred embodiment, the roller body 1 includes:

[0034] Two half-rollers 103 are connected at their bottom outer walls by a hinge 105, and one half-roller 103 is fixedly connected to two support shafts 3.

[0035] Groove 3 is set on the inner wall of the opposite side of the two half rollers 103, and multiple pressure teeth 104 are fixedly connected in each groove 3.

[0036] Reference Figure 3 In a preferred embodiment, the roller body 1 further includes:

[0037] Multiple helical tubes 102 are fixedly connected to both ends of two semi-rollers 103, respectively;

[0038] Two threaded sleeves 101 are movably sleeved on two support shafts 3, and are movably engaged with the outer sides of the semi-screw tubes 102.

[0039] Reference Figure 3 and Figure 4 In a preferred embodiment, the roller body 1 further includes:

[0040] A rubber sheet 108 is wrapped around two half-rollers 103, with both ends of the rubber sheet 108 inserted between the two half-rollers 103. Multiple pressure teeth 104 press on both sides of the rubber sheet 108. The rubber sheet 108 is fixed mainly by the merging of the two openable half-rollers 103 and by the clamping of the pressure teeth 104. The outer rubber sheet 108 can play an anti-slip role and prevent the rollers from continuously transmitting power to the treadmill belt. In addition, by twisting the screw sleeve 101, which covers the two half-screw tubes 102 on the same side, the two half-rollers 103 can be merged to clamp the rubber sheet 108. The structure is simple and makes it easier to replace the rubber sheet 108.

[0041] Groove 107 is located on the inner wall of the bottom end of the two half rollers 103.

[0042] Reference Figure 4 In a preferred embodiment, the roller body 1 further includes:

[0043] Cork stopper 106 is fixedly connected in groove 107;

[0044] Rubber sheet 2 112 is fixedly connected to the middle section of rubber sheet 108, and the elasticity of rubber sheet 2 112 is greater than that of rubber sheet 108.

[0045] Multiple needles 110 are fixedly connected to the inner wall of the rubber sheet 112 and are movably inserted into the cork 106.

[0046] Reference Figure 4 In a preferred embodiment, the roller body 1 further includes:

[0047] Two Velcro loops 109 are fixedly connected to both ends of the rubber sheet 108, respectively;

[0048] Two hook and loop fasteners 111 are fixedly attached to the inner walls of the two half-rollers 103, and the hook and loop fasteners 109 and the hook and loop fasteners 111 are attached to each other. By attaching the hook and loop fasteners 109 and the hook and loop fasteners 111, and by inserting the needle 110 into the cork 106 from the bottom, the positions of the two ends and the center position can be fixed first when installing the rubber sheet 108, so that the rubber sheet 108 is tightly attached to the outer walls of the two half-rollers 103. As the hinges of the two half-rollers 103 close inward, they are stretched at the position of the second rubber sheet 112, and at the same time, a pull-back force is provided. This reduces the installation difficulty while ensuring the tight attachment of the rubber sheet 108.

[0049] Working principle: Using the fixed position of the horizontal plate 4 as a reference, the roller body 1 is pulled inward. At the same time, the hydraulic cylinder 5 is located within the coverage area of ​​the belt. The spring 10 allows the roller body 1 to quickly return to its initial position when the hydraulic cylinder 5 retracts. Through the hydraulic cylinder 5 and the pressure sensing plate 9, the roller body 1 is pushed outward by the hydraulic cylinder 5 according to the sensing value of the pressure sensing plate 9, so that it fits the inner side of the belt. When the resistance increases, it is determined that the roller body 1 is in a position suitable for the belt tension, and the hydraulic cylinder 5 stops pushing and fixes the extension length as support. With this structure, if the belt has a certain error, it can also be adapted. During use, if the belt is severely worn and becomes loose, the real-time monitoring of the pressure sensing plate 9 can detect the belt abnormality and control the hydraulic cylinder 5 to push the roller body 1 to move to support the belt, thereby extending the service life of the belt.

[0050] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A treadmill roller that prevents belt slippage, characterized in that, include: Two bearing seats (2), each bearing seat (2) is rotatably connected to a support shaft (3), and the two support shafts (3) are fixedly connected to both ends of the drum body (1), and an external motor is fixedly connected to the outer end of one of the support shafts (3); The second horizontal plate (8) is fixedly connected to the outer wall of one side of the two bearing seats (2); Two inner sleeves (7) are fixedly connected to the outer wall on the same side of the two bearing seats (2); Two outer sleeves (6) are respectively movably fitted onto the outside of each inner sleeve (7); Two springs (10) are fixedly connected between the inner sleeve (7) and the outer sleeve (6), respectively; Horizontal plate 1 (4) is fixedly connected to the same side of the two outer sleeves (6); The hydraulic cylinder (5) is fixedly installed on the horizontal plate (4), and a pressure sensing plate (9) is installed at its output end.

2. A treadmill roller that prevents belt slippage according to claim 1, characterized in that, The output end of the hydraulic cylinder (5) is fixedly connected to a pressure plate (11), and a groove is provided on one side of the inner wall of the pressure plate (11). The pressure sensing plate (9) is fixedly installed in the groove and is movably attached to one side of the outer wall of the horizontal plate (8).

3. A treadmill roller for preventing belt slippage according to claim 1, characterized in that, The roller body (1) includes: Two half-rollers (103) are connected at their bottom outer walls by a hinge (105), and one half-roller (103) is fixedly connected to two support shafts (3); Groove 3 is provided on the inner wall of the opposite side of the two half rollers (103), and multiple pressure teeth (104) are fixedly connected in each groove 3.

4. A treadmill roller that prevents belt slippage according to claim 3, characterized in that, The roller body (1) also includes: Multiple helical tubes (102) are fixedly connected to the two ends of two semi-rollers (103); Two threaded sleeves (101) are movably sleeved on two support shafts (3) respectively, and are movably engaged with the outer sides of the helical tubes (102).

5. A treadmill roller for preventing belt slippage according to claim 4, characterized in that, The roller body (1) also includes: A rubber sheet (108) is wrapped around two half-rollers (103), and both ends of the rubber sheet (108) are inserted between the two half-rollers (103). Multiple pressure teeth (104) press on both sides of the rubber sheet (108). Groove 1 (107) is provided on the inner wall of the bottom end of the two half rollers (103).

6. A treadmill roller for preventing belt slippage according to claim 5, characterized in that, The roller body (1) also includes: A cork stopper (106) is fixedly connected in groove one (107); Rubber sheet two (112) is fixedly connected to the middle section of rubber sheet one (108), and the elasticity of rubber sheet two (112) is greater than that of rubber sheet one (108); Multiple needles (110) are fixedly connected to the inner wall of the second rubber sheet (112) and are movably inserted into the cork (106).

7. A treadmill roller for preventing belt slippage according to claim 6, characterized in that, The roller body (1) also includes: Two Velcro loops (109) are fixedly connected to both ends of the rubber sheet (108); Two hook and loop fasteners (111) are fixedly attached to the inner walls of the two half rollers (103), and the hook and loop fasteners (109) and the hook and loop fasteners (111) are attached to each other.

Images