In-pipe movable pulley moving mechanism and trainer

Abstract

The utility model relates to the technical field of sports equipment, in particular to an in-pipe movable pulley moving mechanism and a trainer, which comprise a pipe and a movable pulley, two guide rods parallel to each other are arranged in the pipe, a wheel shaft of the movable pulley is connected with a sliding block, two sides of the sliding block are sleeved outside the guide rods and can slide along the guide rods, and the movable pulley is arranged in the pipe. The middle of the first steel wire rope penetrates through one side of the pipe and bypasses the movable pulley, and one end of the second steel wire rope penetrates through the other side of the pipe and is connected with the sliding block. Compared with the prior art, the movable pulley moving mechanism is arranged in the pipe, so that the whole device is more harmonious and attractive, meanwhile, the two guide rods are arranged in the pipe, the sliding blocks are matched with the guide rods to enable the movable pulley to move linearly, and winding interference of a steel wire rope and noise generated when the movable pulley knocks an inner arm of the pipe can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sports equipment, in particular to an inner-tube movable pulley mechanism and a training device. Background Art

[0002] Movable pulleys are often used on exercise equipment to move the counterweights. To maintain the overall aesthetics of the equipment, these pulleys are typically installed within a pipe. However, these pulleys are typically suspended in the air. When the wire rope's inner core experiences stress and swirls, they twist, causing the pulley to twist and the rope to become entangled. This can lead to awkward movements, jams, and even damage to the rope. Furthermore, twisting within the pipe can cause the pulley to collide with the inner wall, creating noise and impacting the user experience. Summary of the Invention

[0003] The utility model provides an inner-tube movable pulley mechanism and a training device in order to overcome the deficiencies of the prior art.

[0004] To achieve the above purpose, a movable pulley mechanism in a tube is designed, including a tube and a movable pulley. Two parallel guide rods are provided in the tube. The axle of the movable pulley is connected to the sliding block. The two sides of the sliding block are sleeved on the outside of the guide rod and can slide along the guide rod. The middle of the steel wire rope passes through one side of the tube and bypasses the movable pulley. One end of the steel wire rope passes through the other side of the tube and is connected to the sliding block.

[0005] Through holes are respectively provided on both sides of the sliding block, and sliding sleeves are provided in the through holes, and the sliding sleeves are sleeved outside the guide rods.

[0006] A sliding sleeve is respectively provided at both ends of the through hole.

[0007] Fixed plates are respectively provided on both sides of the pipe, and both ends of the guide rod are connected to the fixed plates.

[0008] Two fixing plates are provided on one side of the pipe, and a gap is formed between the two fixing plates, through which the first steel rope and the second steel rope pass.

[0009] The cross section of the tube is circular, rectangular or elliptical.

[0010] The utility model also provides a training device, comprising the above-mentioned movable pulley mechanism in the tube, a first steel wire rope connected to the limb driving device, and a second steel wire rope connected to the counterweight device.

[0011] The limb driving device includes a bracket, a column, a sliding frame, a double pulley frame and a motion handle. Both ends of the pipe are connected to the bracket. A column is provided on the front side of the bracket. A sliding frame is provided on the outer sleeve of the column. The sliding frame is hinged with the double pulley frame. One end of the steel wire rope 1 passes around the fixed pulley 1 and the fixed pulley 2 at the top of the bracket and then passes around the double pulley frame to connect to the motion handle. The other end of the steel wire rope 1 passes around the fixed pulley 3 above the bracket and then passes around the fixed pulley 4 below the bracket to connect to the sliding frame.

[0012] The counterweight device includes a counterweight plate. After the steel wire rope passes around the fixed pulley five and the fixed pulley six below the bracket, it passes around the fixed pulley seven and the fixed pulley eight above the bracket to connect with the counterweight plate.

[0013] Compared with the prior art, the utility model arranges the movable pulley mechanism inside the pipe to make the overall equipment more coordinated and beautiful. At the same time, two guide rods are arranged in the pipe. The sliding block is arranged to cooperate with the guide rods to make the movable pulley move in a straight line, which can effectively prevent the wire rope from being entangled and interfering, and the movable pulley from knocking on the inner arm of the pipe to generate noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the movable pulley mechanism inside the tube.

[0015] Figure 2 Schematic diagram of the trainer.

[0016] Figure 3 This is a connection diagram of the trainer.

[0017] See also Figure 1-Figure 3 , among which, 1 is a pipe, 2 is a guide rod, 3 is a movable pulley, 4 is a sliding block, 5 is a sliding sleeve, 6 is a steel wire rope 1, 7 is a steel wire rope 2, 8 is a fixed plate, 9 is a bracket, 10 is a column, 11 is a sliding sleeve frame, 12 is a double pulley frame, 13 is a sports handle, 14 is a fixed pulley 1, 15 is a fixed pulley 2, 16 is a fixed pulley 3, 17 is a fixed pulley 4, 18 is a fixed pulley 5, 19 is a fixed pulley 6, 20 is a fixed pulley 7, 21 is a fixed pulley 8, and 22 is a counterweight. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1:

[0019] like Figure 1As shown, this embodiment provides a movable pulley mechanism in a pipe, comprising a pipe 1 and a movable pulley 3. Two parallel guide rods 2 are provided in the pipe 1. The axle of the movable pulley 3 is connected to a sliding block 4. Both sides of the sliding block 4 are sleeved outside the guide rods 2 and can slide along the guide rods 2. The middle of a steel wire rope 6 passes through one side of the pipe 1 and around the movable pulley 3. One end of a steel wire rope 2 7 passes through the other side of the pipe 1 and is connected to the sliding block 4. The pipe 1 protects the movable pulley 3, and the two guide rods 2 serve as guides, allowing the sliding block 4 to move linearly along the guide rods 2, preventing the movable pulley 3 from twisting, thereby preventing the steel wire ropes 1 6 and 7 from twisting and entanglement, and preventing the movable pulley 3 from colliding with the inner wall of the pipe 1.

[0020] Sliding block 4 has through-holes on either side, each fitted with a sleeve 5 that fits over guide rod 2. Sleeves 5 can be made of standard components to mate with guide rod 2, eliminating the need for secondary finishing of the through-holes in sliding block 4. Because guide rod 2 primarily guides sliding block 4 and does not bear weight, plastic sleeves can be used for sleeves 5, eliminating the need for linear bearings.

[0021] A sliding sleeve 5 is provided at each end of the through hole. The two ends of the through hole are connected to the sliding block 4 through the two sliding sleeves 5, which can increase the contact area of the sliding fit. The contact points are respectively on the upper and lower sides of the sliding block 4, making the sliding block 4 more stable when moving with the guide rod 2, and the sliding block 4 will not twist up and down.

[0022] A fixing plate 8 is provided on both sides of the pipe 1, and both ends of the guide rod 2 are connected to the fixing plate 8. The fixing plate 8 is used to install the guide rod 2.

[0023] Two fixing plates 8 are provided on one side of the pipe 1, and a gap is formed between the two fixing plates 8, through which the steel wire rope 1 6 and the steel wire rope 2 7 pass. Figure 2 As shown, two fixing plates 8 can be provided on one side of the pipe 1 for mounting two guide rods 2, and the wire rope 1 6 and the wire rope 2 7 pass through the gap between the fixing plates 8. If the cross section of the pipe 1 is circular, the fixing plates 8 can be designed as semi-arc-shaped to fit the inner wall of the pipe 1.

[0024] The cross section of the pipe 1 is circular, rectangular or oval. The cross section of the pipe 1 can be selected according to the design requirements of the equipment to make the equipment more beautiful.

[0025] When this embodiment is in use, two guide rods 2 are installed in the pipe 1 through the fixed plate 8, and four sliding sleeves 5 are provided in the two through holes on both sides of the sliding block 4 and are sleeved on the outside of the guide rod 2. The sliding block 4 is connected to the axle of the movable pulley 3, and the wire rope 1 6 drives the movable pulley 3 to move. The wire rope 2 7 is connected to the sliding block 4 to transmit power. The sliding block 4 moves in a straight line along the guide rod 2 to ensure that the movable pulley 3 does not twist and cause interference with the movable parts in the pipe 1 or knock against the inner wall of the pipe 1 to produce noise. Example 2:

[0026] like Figure 2-Figure 3 As shown, this embodiment provides a training device comprising the movable pulley mechanism in the tube of embodiment 1, with wire rope 1 6 connected to the limb drive device, and wire rope 2 7 connected to the counterweight device. The user pulls wire rope 1 6 through limb movement, driving movable pulley 3 to move within tube 1. This in turn pulls wire rope 2 7, thereby moving the counterweight device, thereby performing strength training.

[0027] The limb drive device includes a bracket 9, a column 10, a sliding frame 11, a double pulley frame 12 and a moving handle 13. Both ends of the pipe 1 are connected to the bracket 9. The front side of the bracket 9 is provided with a column 10. The outer sleeve of the column 10 is provided with a sliding frame 11. The sliding frame 11 is hinged with the double pulley frame 12. One end of the wire rope 6 passes around the fixed pulley 14 and the fixed pulley 2 15 at the top of the bracket 9 and then passes around the double pulley frame 12 to connect to the moving handle 13. The other end of the wire rope 6 passes around the fixed pulley 3 16 above the bracket 9 and then passes around the fixed pulley 4 17 below the bracket to connect to the sliding frame 11.

[0028] The counterweight device includes a counterweight plate 22. After the wire rope 27 passes around the fixed pulley 5 18 and the fixed pulley 6 19 below the bracket 9, it passes around the fixed pulley 7 20 and the fixed pulley 8 21 above the bracket 9 to connect to the counterweight plate 22.

[0029] To use this embodiment, first adjust the sliding frame 11 to the appropriate height. The ends of the steel wire rope 6 are connected to the exercise handle 13 and the sliding frame 11, respectively. As the sliding frame 11 moves up and down, the steel wire rope 6 also moves with the sliding frame 11 and the exercise handle 13, but the movable pulley 3 remains stationary. Fixed pulleys 2 and 4, 17, are located at the top and bottom of the bracket 9, respectively, allowing the sliding frame 11 to be adjusted throughout the entire range of the column 10. Pins can be installed on the sides of the sliding frame 11, and holes can be opened in the side of the column 10. After the position of the sliding frame 11 is adjusted, the pins and holes fit together to lock the sliding frame 11 to the column 10. Steel wire rope 2 and 7 are connected to the weight stack 22 through the pulley's rotational direction. When the user pulls the exercise handle 13, the steel wire rope 6 drives the movable pulley 3 up and down within the pipe 1. Steel wire rope 2 and 7 are connected to the weight stack 22, allowing strength training. Users can connect different exercise handles 13 as needed to achieve different movements.

[0030] The internal movable mechanism of the entire trainer cannot be seen from the outside, and the overall structure presents a simple and beautiful effect, and enhances the efficiency of use. There will be no random friction, collision, noise and other adverse problems due to the uncontrolled movable pulley 3, thereby improving the overall quality of the trainer.

Claims

1. A movable pulley mechanism in a tube, comprising a tube (1) and a movable pulley (3), characterized in that: Two mutually parallel guide rods (2) are provided in the pipe (1), the axle of the movable pulley (3) is connected to the sliding block (4), both sides of the sliding block (4) are sleeved outside the guide rod (2) and can slide along the guide rod (2), the middle of the first steel wire rope (6) passes through one side of the pipe (1) and around the movable pulley (3), and one end of the second steel wire rope (7) passes through the other side of the pipe (1) and is connected to the sliding block (4).

2. The movable pulley mechanism in a tube according to claim 1, characterized in that: Through holes are respectively provided on both sides of the sliding block (4), and sliding sleeves (5) are provided in the through holes. The sliding sleeves (5) are sleeved on the outside of the guide rod (2).

3. The movable pulley mechanism in a tube according to claim 2, characterized in that: A sliding sleeve (5) is provided at each end of the through hole.

4. The movable pulley mechanism in a tube according to claim 1, characterized in that: Fixed plates (8) are respectively provided on both sides of the pipe (1), and both ends of the guide rod (2) are connected to the fixed plates (8).

5. The movable pulley mechanism in a tube according to claim 4, characterized in that: Two fixing plates (8) are provided on one side of the pipe (1), and a gap is formed between the two fixing plates (8), through which the first steel wire rope (6) and the second steel wire rope (7) pass.

6. The movable pulley mechanism in a tube according to claim 1, characterized in that: The cross section of the tube (1) is circular, rectangular or elliptical.

7. A training device, characterized in that: It comprises a movable pulley mechanism in a tube as described in any one of claims 1 to 6, wherein the first steel wire rope (6) is connected to the limb driving device, and the second steel wire rope (7) is connected to the counterweight device.

8. A training device according to claim 7, characterized in that: The limb driving device comprises a bracket (9), a column (10), a sliding frame (11), a double pulley frame (12) and a motion handle (13). Both ends of the pipe (1) are connected to the bracket (9). The front side of the bracket (9) is provided with a column (10). The outer sleeve of the column (10) is provided with a sliding frame (11). The sliding frame (11) is hinged with the double pulley frame (12). One end of the steel wire rope (6) passes around the fixed pulley (14) and the fixed pulley (15) at the top of the bracket (9) and then passes around the double pulley frame (12) to connect to the motion handle (13). The other end of the steel wire rope (6) passes around the fixed pulley (16) above the bracket (9) and then passes around the fixed pulley (17) below the bracket to connect to the sliding frame (11).

9. A training device according to claim 8, characterized in that: The counterweight device includes a counterweight plate (22). The steel wire rope 2 (7) passes around the fixed pulley 5 (18) and the fixed pulley 6 (19) below the bracket (9), and then passes around the fixed pulley 7 (20) and the fixed pulley 8 (21) above the bracket (9) to connect to the counterweight plate (22).

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