Rope pulling device

Abstract

The utility model belongs to the technical field of rope pulling devices, and particularly relates to a rope pulling device which comprises a rope pulling device body, the rope pulling device body comprises a resistance mechanism, the resistance mechanism comprises a resistance rotating disc and a resistance fixing piece, a basic resistance friction block is arranged between the resistance rotating disc and the resistance fixing piece, and the resistance rotating disc is connected with the resistance fixing piece. And the basic resistance friction block applies friction force to the resistance rotating disc so as to provide resistance. The rope pulling device has the advantages of being simple in structure, convenient to assemble, low in cost and the like, the structural form of the rope pulling device is optimized and enriched, customers can select the rope pulling device conveniently, and healthy development of the industry is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of rope pullers, in particular to a rope puller. Background Art

[0002] As a commonly used fitness equipment in the industry, the rope puller generally includes a shell, a rotating shaft, a rope winding drum fixed on the rotating shaft, a pull rope wound on the rope winding drum, a return spring and a resistance mechanism.

[0003] The resistance mechanism in the current prior art is generally a magnetic resistance mechanism or a hydraulic resistance mechanism;

[0004] The cost of the magnetic resistance mechanism is relatively high, and it may not be very simple to assemble. For example, patent CN212395711U discloses a rope puller which utilizes a magnetic resistance structure;

[0005] The structure of the hydraulic resistance mechanism is relatively complex and resistance oil needs to be injected, which is more expensive, inconvenient to maintain, and there is a risk of oil leakage. For example, patent CN203264143U discloses a rope puller, which is a resistance structure that requires the injection of resistance oil.

[0006] How to develop a resistance mechanism with simple structure, easy assembly and low cost is our research and development direction. It can optimize and enrich the structure of such products and is also beneficial to the development of the industry. Utility Model Content

[0007] The utility model provides a rope puller which can solve the problems pointed out in the background technology.

[0008] A rope puller includes a rope puller body, the rope puller body includes a resistance mechanism, the resistance mechanism includes a resistance rotating disk and a resistance fixing piece, a basic resistance friction block is provided between the resistance rotating disk and the resistance fixing piece, the basic resistance friction block applies friction force to the resistance rotating disk to provide resistance.

[0009] Preferably, the resistance fixing member is a resistance fixing ring, which is located on the outside of the resistance rotating disk and connected to the rope puller housing, and the basic resistance friction block is a basic arc-shaped resistance friction block, and the basic arc-shaped resistance friction block, the resistance fixing ring and the resistance rotating disk are coaxially arranged.

[0010] Preferably, a resistance adjustment friction block is further provided between the resistance rotating disk and the resistance fixing member, and the resistance of the resistance adjustment friction block is adjusted by a resistance adjustment component.

[0011] Preferably, the resistance adjustment assembly includes an adjusting screw, which is threadedly connected to the rope puller housing and has one inner end against the adjusting resistance friction block. The friction force between the adjusting resistance friction block and the resistance rotating disk is adjusted by reciprocating rotation of the adjusting screw.

[0012] Preferably, the adjusting screw is threadedly connected to the rope puller housing via a nut, and the rope puller housing is provided with a nut limiting installation groove to perform limiting installation on the nut.

[0013] Preferably, the adjusting screw is a hollow screw, one inner end of which is rotatably connected to a center rod, and the center rod passes through a resistance fixing ring and contacts and cooperates with the adjusting resistance friction block.

[0014] Preferably, a limiting groove is provided on the resistance fixing ring, and an arc-shaped limiting plate and a limiting column which match the resistance fixing ring are provided on the rope puller housing, and the limiting groove cooperates with the limiting column in a limiting manner.

[0015] Preferably, the resistance rotating disk is connected to a rotating shaft, and the rope pulley disk is unidirectionally rotatably connected to the rotating shaft via a one-way bearing.

[0016] The utility model provides a rope puller, which has the advantages of simple structure, easy assembly, low cost, etc., and also optimizes and enriches the structural form of the rope puller, is convenient for customers to choose, and is conducive to the healthy development of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the resistance mechanism of the utility model.

[0018] Figure 2 It is a split schematic diagram of the utility model.

[0019] Description of reference numerals:

[0020] Numbers in the figure: resistance rotating disk 11; resistance fixing member 12; limiting groove 121; basic resistance friction block 13; adjustment resistance friction block 14; adjustment screw 15; nut 16; rotating shaft 17; center rod 18; rope puller housing 2; arc-shaped limiting plate 21; limiting column 22; nut limiting mounting groove 23; rope pulley 3; one-way bearing 4; pull rope 5; reset spring 6. DETAILED DESCRIPTION

[0021] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0022] Embodiment 1:

[0023] like Figure 1-2As shown, a rope puller provided by an embodiment of the utility model includes a rope puller body, the rope puller body includes a resistance mechanism, the resistance mechanism includes a resistance rotating disk 11 and a resistance fixing member 12, a basic resistance friction block 13 is provided between the resistance rotating disk 11 and the resistance fixing member 12, the basic resistance friction block 13 applies friction force to the resistance rotating disk 11 to provide resistance.

[0024] Specifically, the resistance fixing part 12 is a resistance fixing ring, which is located on the outside of the resistance rotating disk 11 and connected to the rope puller housing 2. The basic resistance friction block 13 is a basic arc-shaped resistance friction block. The basic arc-shaped resistance friction block, the resistance fixing ring and the resistance rotating disk 11 are coaxially arranged. The basic resistance friction block 13 can be made of asbestos, similar to asbestos brake pads.

[0025] Specifically, a limiting groove 121 is provided on the resistance fixing ring, and an arc-shaped limiting plate 21 and a limiting column 22 which match the resistance fixing ring are provided on the rope puller housing 2. The limiting groove 121 and the limiting column 22 are limitedly matched, and this structure is convenient for quick assembly.

[0026] The resistance rotating disk 11 is connected to the rotating shaft 17, and the rope pulley disk 3 is unidirectionally connected to the rotating shaft 17 through a one-way bearing 4. The rope pulley disk 3 is connected to a pull rope 5 and a reset spring 6, i.e., a reset coil spring. The structure here is a general structure and will not be described in detail here.

[0027] Embodiment 2:

[0028] A resistance adjusting friction block 14 is also provided between the resistance rotating disk 11 and the resistance fixing member 12. The resistance of the resistance adjusting friction block 14 is adjusted by a resistance adjusting component.

[0029] Specifically, the resistance adjustment assembly includes an adjusting screw 15, which is threadedly connected to the rope puller housing 2, and one inner end of which rests against the adjusting resistance friction block 14. The friction force between the adjusting resistance friction block 14 and the resistance rotating disk 11 is adjusted by reciprocating rotation of the adjusting screw 15.

[0030] That is, the basic resistance friction block 13 provides basic resistance, and the adjustable resistance friction block 14 provides adjustable additional resistance.

[0031] Specifically, the adjusting screw 15 is threadedly connected to the rope puller housing 2 through the nut 16. The rope puller housing 2 is provided with a nut limit installation groove 23 to limit the installation of the nut 16. The adjusting screw 15 is a hollow screw, and one end of the inner side thereof is rotatably connected to the center rod 18. The center rod 18 passes through the resistance fixing ring and contacts with the adjusting resistance friction block 14. The contact fit can be abutment fit, that is, the two are butted together, or it can be rotational fit. This structure is also for easy assembly.

[0032] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A rope puller, comprising a rope puller body, wherein the rope puller body comprises a resistance mechanism, characterized in that: The resistance mechanism comprises a resistance rotating disk (11) and a resistance fixing member (12), a basic resistance friction block (13) is provided between the resistance rotating disk (11) and the resistance fixing member (12), and the basic resistance friction block (13) applies friction force to the resistance rotating disk (11) to provide resistance.

2. A rope puller according to claim 1, characterized in that: The resistance fixing member (12) is a resistance fixing ring, which is located outside the resistance rotating disk (11) and connected to the rope puller housing (2); the basic resistance friction block (13) is a basic arc-shaped resistance friction block; the basic arc-shaped resistance friction block, the resistance fixing ring and the resistance rotating disk (11) are coaxially arranged.

3. A rope puller according to claim 2, characterized in that: A resistance adjusting friction block (14) is also provided between the resistance rotating disk (11) and the resistance fixing member (12); the resistance adjusting friction block (14) can adjust the resistance value thereof through a resistance adjusting component.

4. A rope puller according to claim 3, characterized in that: The resistance adjustment assembly comprises an adjustment screw (15), wherein the adjustment screw (15) is threadedly connected to the rope puller housing (2), and one inner end of the adjustment screw (15) abuts against the adjustment resistance friction block (14). The friction force between the adjustment resistance friction block (14) and the resistance rotating disk (11) is adjusted by reciprocating rotation of the adjustment screw (15).

5. A rope puller according to claim 4, characterized in that: The adjusting screw (15) is threadedly connected to the rope puller housing (2) via a nut (16); the rope puller housing (2) is provided with a nut limiting installation groove (23) for limiting the installation of the nut (16).

6. A rope puller according to claim 5, characterized in that: The adjusting screw rod (15) is a hollow screw rod, one inner end of which is rotatably connected to a center rod (18). The center rod (18) passes through a resistance fixing ring and contacts and cooperates with the adjusting resistance friction block (14).

7. A rope puller according to claim 2, characterized in that: The resistance fixing ring is provided with a limiting groove (121), the rope puller housing (2) is provided with an arc-shaped limiting plate (21) and a limiting column (22) that match the resistance fixing ring, and the limiting groove (121) and the limiting column (22) are matched in limiting manner.

8. A rope puller according to any one of claims 1 to 7, characterized in that: The resistance rotating disk (11) is connected to a rotating shaft (17), and the rope pulley disk (3) is connected to the rotating shaft (17) in a one-way rotating manner via a one-way bearing (4).

Images