Anti-jumper device

Abstract

The utility model provides an anti-jumper device, which is configured to be used for a tensioner, the anti-jumper device comprises at least one anti-jumper wheel, the at least one anti-jumper wheel is arranged on the surface of the tensioner through a rotating shaft, the anti-jumper wheel comprises a roller, the cross section of the roller is V-shaped, and a protective sheet is arranged on the surface of the roller. The anti-jumper structure is arranged on the wire passing wheel, the structure of the tensioner is effectively used for preventing jumper, the structural design of the tensioner is facilitated, and the structural design of a precise instrument such as the tensioner can be more exquisite and reasonable.

Description

Technical Field

[0001] The utility model relates to an auxiliary device of a tensioner, in particular to an anti-jump wire device. Background Art

[0002] The anti-jump wire device is an essential accessory for the tensioner during the winding process. Its purpose is to prevent the wire from slipping off the device (jumping wires) during winding. For example, Chinese patent document CN 204847597 U discloses an anti-jump wire device for a tensioner. The anti-jump wire device is composed of anti-jump wire structures of different shapes and positions to confine the wire to the desired route and prevent skipping. However, this jump wire device takes up a certain amount of space, which adds difficulty to the structural design of the tensioner, which is already small.

[0003] Therefore, it is necessary to provide an anti-jump wire device with a simpler structure. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide an anti-jumping device in view of the problems existing in the background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A wire-jumping prevention device is configured for use with a tensioner. The wire-jumping prevention device includes at least one wire-jumping prevention wheel, which is mounted on the surface of the tensioner via a rotating shaft. The wire-jumping prevention wheel includes a roller, which has a V-shaped cross-section and a protective plate provided on the surface of the roller.

[0007] Preferably, a shaft mounting hole is provided in the middle of the anti-jumping wheel.

[0008] Preferably, a bearing is provided around the rotating shaft mounting hole, and a snap ring is provided on one side of the bearing.

[0009] Preferably, the guard plate includes a concave area that matches the shape of the roller surface, and a guard wall is provided around the concave area, which is configured to cover the roller.

[0010] Preferably, the top end of the guard wall is recessed inwardly so as to be stuck on the periphery of the roller.

[0011] Preferably, the bottom of the V-shape is provided with a smooth wire groove.

[0012] Preferably, a wire-blocking cylinder is provided on the top of the V-shape.

[0013] Preferably, the wire blocking cylinder is clamped at the position where the protective wall covers the roller.

[0014] Preferably, a circular hole is provided on the surface of the guard wall, and when the guard plate is mounted on the surface of the roller, both ends of the wire blocking cylinder are inserted into the circular hole.

[0015] The beneficial effect of the present invention is that the present invention sets an anti-jumping structure on the wire wheel, effectively utilizing the structure of the tensioner itself to prevent wire jumping, which is beneficial to the structural design of the tensioner and can make the structural design of a precision instrument such as the tensioner more sophisticated and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the anti-jumping wheel of the utility model.

[0017] Figure 2 It is a side view of the anti-line jumping wheel of the utility model.

[0018] Figure 3 It is a cross-sectional view of the anti-jumping wheel of the utility model.

[0019] Figure 4 This is a diagram of the use status of the anti-jump wire device of the utility model.

[0020] Numbers in the figure: anti-jump wheel 1, rotating shaft 2, rotating shaft mounting hole 3, roller 4, wire groove 5, wire blocking cylinder 6, guard plate 7, concave area 8, guard wall 9, bearing 10, snap ring 11, tensioner 12, round hole 13. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand and implement the technical solutions of the present invention, the present invention is described in detail, clearly, and completely in the following embodiments in conjunction with the accompanying drawings. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Moreover, based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the scope of protection of the present invention.

[0022] Refer to the attached drawings.

[0023] like Figure 4 As shown, the utility model provides an anti-jumping device for a tensioner, wherein the anti-jumping device includes at least one anti-jumping wheel 1, and each anti-jumping wheel 1 is mounted on the surface of the tensioner through a corresponding rotating shaft 2.

[0024] like Figure 1As shown, a shaft mounting hole 3 is provided in the middle of the anti-jumping wheel 1, and the shaft 2 is coupled to the shaft mounting hole 3 of the anti-jumping wheel through a bearing 10. A snap ring 11 is provided on one side of the bearing 10. The function of the snap ring 11 is to make the inner ring of the bearing and the shaft relatively fixed, while the outer ring of the bearing can rotate freely relative to the shaft 2 together with the anti-jumping wheel 1.

[0025] like Figure 2 As shown, the anti-jumping wheel 1 includes a roller 4, the cross-section of the roller 4 is V-shaped, the bottom of the V-shape is provided with a smooth wire groove 5, the wire groove 5 facilitates the passage of the wire, and the top of the V-shape is provided with a wire-blocking cylinder 6, the wire-blocking cylinder 6 can block the wire and confine it to the space formed by the V-shaped cross-section of the anti-jumping wheel 1. When in use, the wire can first pass through the space formed by the V-shaped cross-section sealed by the wire-blocking cylinder, so that the wire will not jump out of the anti-jumping wheel.

[0026] like Figure 3 As shown, preferably, both surfaces of the roller 4 are provided with guard plates 7, which are respectively arranged on the two surfaces of the roller 4, and the guard plates 7 include a concave area 8 matching the shape of the roller surface, and the roller 4 is in the space of the concave area 8, and a guard wall 9 is provided around the concave area 8. The guard plate 7 covers the part of the roller except the V-shaped cross-section, and the guard wall 9 can be recessed inward and stuck in the end of the V-shaped groove of the roller, so as to be fixed on the roller. The guard plate 7 can not only protect the roller, but also further form a structure at the end of the V-shaped groove to prevent the wire from slipping out, and can play a certain anti-jumping role even in the absence of a wire blocking cylinder.

[0027] The surface of the protective wall 9 is provided with a circular hole 13. When the protective plate 7 and the wire blocking cylinder 6 are provided at the same time, the wire blocking cylinder 6 is placed in the circular hole 13. Figure 3 As shown, when the guard plate 7 is installed on the surface of the roller 4, both ends of the wire blocking cylinder 6 are clamped into the circular hole 13 and fixed.

[0028] like Figure 4 As shown, a plurality of anti-jumping wheels 1 can be provided on the tensioner 12 on the wire passage in the direction indicated by the arrow in the figure as needed to ensure stable wire travel.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-jump wire device configured for a tensioner, characterized in that: The anti-jumping device includes at least one anti-jumping wheel, which is installed on the surface of the tensioner through a rotating shaft. The anti-jumping wheel includes a roller, the cross-section of the roller is V-shaped, and a protective plate is provided on the surface of the roller.

2. The anti-jump wire device according to claim 1, characterized in that: A rotating shaft mounting hole is provided in the middle of the anti-jumping wheel.

3. The anti-jump wire device according to claim 2, characterized in that: A bearing is provided around the rotating shaft mounting hole, and a snap ring is provided on one side of the bearing.

4. The anti-jump wire device according to claim 1, characterized in that: The guard plate includes a concave area that matches the shape of the roller surface. A guard wall is provided around the concave area and is configured to cover the roller.

5. The anti-jump wire device according to claim 4, characterized in that: The top end of the guard wall is recessed inwardly so as to be stuck on the periphery of the roller.

6. The anti-jump wire device according to claim 1, characterized in that: The bottom of the V-shape is provided with a smooth wire groove.

7. The anti-jump wire device according to claim 4, characterized in that: A wire-blocking cylinder is provided on the top of the V-shape.

8. The anti-jump wire device according to claim 7, characterized in that: The wire blocking cylinder is clamped at the position where the guard wall covers the roller.

9. The anti-jump wire device according to claim 8, characterized in that: A circular hole is provided on the surface of the guard wall. When the guard plate is mounted on the surface of the roller, both ends of the wire blocking cylinder are clamped into the circular hole.

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