Steel wire rope tightening device

Abstract

According to the steel wire rope tightening device provided by the utility model, the first check block is arranged on the inserting part in a sleeving manner and is in threaded connection with the second internal threaded hole through the first external thread, so that the first check block is propped against the adjusting frame, and the adjusting frame is fixed between the first holding part and the first check block, and therefore, the fixing of the rotating rod and the adjusting frame is realized; the conditions that the rotating difficulty is increased and even the steel wire rope tightening process is interrupted due to falling off when the rotating rod rotates in the adjusting frame are effectively avoided, and the steel wire rope tightening efficiency is improved; meanwhile, the hook is connected with the steel wire rope, the rotating rod is rotated after being connected with the adjusting frame, so that the connecting rods generate relative displacement relative to the adjusting frame, the connecting rods at the two ends of the adjusting frame are close to each other, and the steel wire rope is tightened. In addition, the rotating rod adopts a detachable design, so that maintenance and replacement are convenient, and carrying and carrying are also easy.

Description

Technical Field

[0001] The utility model relates to the technical field of steel wire ropes, in particular to a steel wire rope tightening device. Background Art

[0002] As an important transmission and load-bearing component, wire rope is widely used in various fields, such as high-end equipment manufacturing, mining, engineering bundling, power communications, etc. However, during the production and use of wire rope, it is often necessary to tighten it with a tightening device to ensure that it meets the specific tension requirements.

[0003] In practical applications, wire rope tensioning devices need to be frequently moved and used, so they often feature a simple and portable structure. A commonly used simple and portable wire rope tensioner in the prior art includes an adjustment frame and screws rotatably disposed at both ends of the adjustment frame. Rotating the adjustment frame adjusts the relative displacement between the screws, thereby tightening the wire rope connected to one screw.

[0004] However, when using this type of wire rope tensioner, a rotating rod often passes through the adjustment frame. The rotation of the rotating rod drives the adjustment frame to rotate. However, during use, the rotating rod often slides up and down or moves laterally, which not only easily causes the rotating rod to collide with the screw in the adjustment frame, but also causes the force point of the rotating rod to constantly change, making rotation more difficult and thus affecting tightening efficiency. The rotating rod may even fall off the adjustment frame, interrupting the tightening process and affecting the effective execution of the wire rope tightening process.

[0005] Therefore, in order to improve the tightening efficiency of the wire rope, it is particularly important to develop a wire rope tightening device with a simple and portable structure and high tightening efficiency. Utility Model Content

[0006] Aiming at the technical problem that when some wire rope tensioners in the prior art use a rotating rod to rotate an adjusting frame to tighten the wire rope, the rotating rod is easily displaced or even falls off, resulting in low wire rope tightening efficiency, the utility model provides a wire rope tightening device.

[0007] A wire rope tightening device comprises an adjusting frame, a rotating rod and two connecting rods; both ends of the adjusting frame are penetrated by a first internal threaded hole; the middle of the adjusting frame is penetrated by a plug hole; one end of the connecting rod is provided with a hook, and the outer surface of the other end is provided with a second external thread, and the rotation directions of the second external threads of the two connecting rods are opposite; the end of the connecting rod away from the hook is inserted into the interior of the adjusting frame and is threadedly connected to the corresponding first internal threaded hole through the second external thread; the rotating rod comprises a fixed rod body, a movable rod body detachably connected to the fixed rod body, and a first stopper; the fixed rod The body includes a first gripping portion and a plug-in portion; the outer diameter of the plug-in portion is smaller than the outer diameter of the first gripping portion, and a first external thread is provided on the outer surface of the plug-in portion, and a second internal threaded hole is penetrated by the first stopper; the fixed rod body is inserted into the plug-in hole through the plug-in portion, so that the adjustment frame abuts against the first gripping portion; the first stopper is sleeved on the plug-in portion, and the first external thread is threadedly connected to the second internal threaded hole, so that the first stopper abuts against the adjustment frame and fixes the adjustment frame between the first gripping portion and the first stopper; the movable rod body is detachably mounted on the end of the plug-in portion.

[0008] Furthermore, the movable rod body includes a second gripping portion and a threaded rod fixedly connected to one end of the second gripping portion, the end of the plug-in portion is provided with a third internal threaded hole, and the movable rod body is threadedly connected to the third internal threaded hole through the threaded rod.

[0009] Furthermore, the outer surfaces of the first gripping portion and the second gripping portion are both provided with an anti-slip pattern.

[0010] Furthermore, it includes a second stopper, which is provided with a through hole. The second stopper is sleeved on the plug-in portion through the through hole and abuts against the first gripping portion.

[0011] Furthermore, it includes a second stopper, which is provided with a through hole and is fixedly disposed in the plug hole. The second stopper is sleeved on the plug-in portion through the through hole.

[0012] Furthermore, the connecting rod is provided with a limiting block at one end away from the hook for preventing the connecting rod from being separated from the first internal threaded hole, and the limiting block is located in the adjustment frame.

[0013] Furthermore, the two connecting rods are located on the same straight line and are symmetrical along a preset plane; the preset plane is perpendicular to the plane where the adjustment frame is located, and the plug hole is perpendicular to the plane where the adjustment frame is located.

[0014] Furthermore, outer surfaces of the rotating rod and the adjusting frame are sprayed with a wear-resistant coating.

[0015] Furthermore, a plurality of limiting protrusions are provided on the inner side of the hook.

[0016] The beneficial effects of the present invention are as follows: the present invention provides a wire rope tightening device, which, by sleeve-mounting a first stopper on the plug-in portion and threading the first external thread to the second internal threaded hole, makes the first stopper abut against the adjustment frame, and fixes the adjustment frame between the first gripping portion and the first stopper, thereby achieving fixation of the rotating rod and the adjustment frame, effectively preventing the rotating rod from moving when rotating within the adjustment frame, thereby increasing the difficulty of rotation, or even falling off, thereby interrupting the wire rope tightening process, thereby improving the efficiency of wire rope tightening; at the same time, by connecting the wire rope through a hook, and connecting the rotating rod to the adjustment frame, the rotating rod is rotated, so that the connecting rod is relatively displaced relative to the adjustment frame, thereby bringing the connecting rods at both ends of the adjustment frame closer to each other, thereby achieving wire rope tightening. In addition, the rotating rod adopts a detachable design, which is convenient for maintenance and replacement, and is also easy to carry and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a wire rope tightening device is provided for Example 1.

[0018] Figure 2 A schematic diagram of the adjustment frame structure is provided for Example 1.

[0019] Figure 3 A schematic diagram of the rotating rod structure is provided for Example 1.

[0020] Figure 4 A schematic diagram of the explosion structure of the rotating rod is provided for Example 1.

[0021] Figure 5 A schematic diagram of the connecting rod structure is provided for Example 1.

[0022] Figure 6 A structural schematic diagram of a wire rope tightening device is provided for Example 2.

[0023] Figure 7 A simplified cross-sectional schematic diagram of a wire rope tightening device is provided for Example 3.

[0024] Figure 8 A structural schematic diagram of the second stopper is provided for Examples 2 and 3.

[0025] Figure ID

[0026] 1. Adjusting frame; 11. First internal threaded hole; 12. Connecting hole; 2. Rotating rod; 21. Fixed rod body; 211. First gripping part; 212. Connecting part; 2121. Third internal threaded hole; 213. First external thread; 22. Moving rod body; 221. Second gripping part; 222. Threaded rod; 23. First stopper; 3. Connecting rod; 31. Hook; 311. Limiting protrusion; 32. Second external thread; 33. Limiting block; 4. Anti-slip groove; 5. Second stopper; 51. Through hole. DETAILED DESCRIPTION

[0027] To further illustrate the present invention, the following description is provided with reference to the accompanying drawings. It should be noted that the embodiments described below represent only a portion of the present invention, and not all of its embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] refer to Figure 1 As shown, a wire rope tightening device includes an adjustment frame 1, a rotating rod 2 and two connecting rods 3. The adjustment frame 1 is a hollow cylinder or a hollow bracket. In this embodiment, the adjustment frame is a hollow cylinder.

[0029] Specifically, refer to Figure 1 and Figure 2 As shown, the adjustment frame 1 has a first internal threaded hole 11 at both ends, and a plug hole 12 is provided in the middle of the adjustment frame 1. The rotating rod 2 includes a fixed rod body 21, a movable rod body 22 detachably connected to the fixed rod body 21, and a first stopper 23.

[0030] Among them, reference Figure 1 、 Figure 3 and Figure 4 As shown, the fixed rod body 21 includes a first gripping portion 211 and an inserting portion 212; the outer diameter of the inserting portion 212 is smaller than the outer diameter of the first gripping portion 211, and a first external thread 213 is provided on the outer surface of the inserting portion 212, and a second internal threaded hole (not marked in the figure) is provided through the first stop block 23.

[0031] The fixing rod body 21 is inserted into the inserting hole 12 through the inserting portion 212, so that the adjusting frame 1 is in contact with the first gripping portion 211; the first stopper 23 is sleeved on the inserting portion 212, and the first external thread 213 is threadedly connected to the second internal threaded hole, so that the first stopper 23 is in contact with the adjusting frame 1, and the adjusting frame 1 is fixed between the first gripping portion 211 and the first stopper 23; thereby achieving the fixation of the rotating rod 2 and the adjusting frame 1, effectively avoiding the situation that the rotating rod 2 moves when rotating in the adjusting frame 1 when rotating, resulting in increased difficulty in rotation, or even falling off, resulting in interruption of the wire rope tightening process, which is beneficial to improving the efficiency of wire rope tightening.

[0032] The movable rod body 22 is detachably mounted on the end of the plug-in portion 212. The outer diameter of the movable rod body 22 is greater than or equal to the outer diameter of the plug-in portion 212. The movable rod body 22 includes a second gripping portion 221 and a threaded rod 222 fixedly connected to one end of the second gripping portion 221. The end of the plug-in portion 212 is provided with a third internally threaded hole 2121. The movable rod body 22 is threadedly connected to the third internally threaded hole 2121 via the threaded rod 222, thereby achieving detachable mounting of the movable rod body 22 and the fixed rod body 21 on the rotating rod 2, and facilitating the fixed connection of the fixed rod body 21 to the adjustment frame 1.

[0033] Preferably, the outer surfaces of the first grip portion 211 and the second grip portion 221 are both provided with an anti-slip pattern 4. The anti-slip pattern 4 increases the friction between the operator's hand and the rod body when holding the first grip portion 211 or the second grip portion 221, preventing the hand from slipping and facilitating the exertion of force.

[0034] refer to Figure 1 and Figure 5 As shown, the connecting rod 3 has a hook 31 at one end and a second external thread 32 on the outer surface of the other end, forming a screw portion. The second external threads 32 of the two connecting rods 3 rotate in opposite directions. The end of the connecting rod 3 away from the hook is inserted into the interior of the adjustment frame 1 and is threadedly connected to the corresponding first internal threaded hole 11 via the second external thread 32. The length of the second external thread 32 on the connecting rod 3 is greater than the length of the inner thread of the first internal threaded hole 11. By rotating the connecting rod 3 or rotating the adjustment frame 1, the connecting rod 3 can be moved within the first internal threaded hole 11 of the adjustment frame 1.

[0035] The end of the connecting rod 3 away from the hook 31 is provided with a stopper 33 for preventing the connecting rod 3 from separating from the first internal threaded hole 11. The stopper 33 is located inside the adjustment frame 1. The setting of the stopper 33 can prevent the connecting rod 3 from being displaced too much relative to the adjustment frame 1.

[0036] The working principle of the wire rope tightening device provided by the present invention is as follows: the hooks 31 of the two connecting rods 3 of the tightening device are respectively connected to the wire rope and a fixed point on the ground. At this time, the first stopper 23 is first placed on the plug-in portion 212 of the fixed rod body 21, and the first external thread 213 is threadedly connected to the second internal threaded hole, so that the first stopper 23 abuts against the adjustment frame 1, and the adjustment frame 1 is fixed between the first gripping portion 211 and the first stopper 23, thereby achieving the fixation of the rotating rod 2 and the adjustment frame 1. Then, the movable rod body 22 is threadedly connected to the fixed rod body 21, completing the assembly of the rotating rod 3 and fixing the rotating rod 3 to the adjustment frame 1. Subsequently, the operator alternately rotates the movable rod body 22 and the fixed rod body 21 with both hands, so that the rotating rod 3 rotates in the direction of tightening the wire rope. At this time, the connecting rod 2 produces relative displacement relative to the adjustment frame 1, thereby causing the connecting rods 2 at both ends of the adjustment frame 1 to approach each other, thereby tightening the wire rope.

[0037] refer to Figure 5 As shown, a plurality of limiting protrusions 311 are provided on the inner side of the hook 31. The limiting protrusions 311 can limit the connected wire rope between adjacent limiting protrusions 311 to prevent the wire rope from moving and being unhooked.

[0038] In this embodiment, the two connecting rods 2 are located on the same straight line and are symmetrical along a preset plane; the preset plane is perpendicular to the plane where the adjustment frame 1 is located, and the plug 12 is perpendicular to the plane where the adjustment frame 1 is located.

[0039] The outer surfaces of the rotating rod 2 and the adjusting frame 1 are sprayed with a wear-resistant coating (not shown in the figure), which is beneficial to reducing the wear between the rotating rod 2 and the adjusting frame 1 when rotating, and extending the service life.

[0040] Example 2

[0041] refer to Figure 6 and Figure 8 As shown, the difference between this embodiment 2 and embodiment 1 is that it further includes a second stopper 5 , which is provided with a through hole 51 . The second stopper 5 is sleeved on the plug-in portion 212 through the through hole 51 and abuts against the first gripping portion 211 .

[0042] In this embodiment, the fixing method of the fixed rod body 21 and the adjustment frame 1 is as follows: first, the second stopper 5 is sleeved on the plug-in portion 212 through the through hole 51 and abutted against the first gripping portion 211; secondly, the portion of the plug-in portion 212 passing through the through hole 51 is inserted into the plug-in hole 12, so that the adjustment frame 1 abuts against the first gripping portion 211; finally, the first stopper 23 is sleeved on the portion of the plug-in portion 212 passing through the adjustment frame 1, and the first external thread 213 is threadedly connected to the second internal threaded hole, so that the first stopper 23 abuts against the adjustment frame 1, thereby fixing the adjustment frame 1 between the second stopper 5 and the first stopper 23, thereby achieving the fixation of the fixed rod body 21 and the adjustment frame 1.

[0043] Example 3

[0044] refer to Figure 7 and Figure 8 As shown, the difference between this embodiment 3 and embodiment 1 is that it further includes a second stopper 5, the second stopper 5 is provided with a through hole 51, and the second stopper 5 is fixedly arranged in the plug-in hole 12, and the second stopper 5 is sleeved on the plug-in portion 212 through the through hole 51.

[0045] In this embodiment, the fixing method of the fixed rod body 21 and the adjustment frame 1 is as follows: first, the second stopper 5 is fixedly set in the plug-in hole 12, and then the second stopper 5 is sleeved on the plug-in portion 212 through the through hole 51, and the second stopper 5 abuts against the first gripping portion 211; secondly, the first stopper 23 is sleeved on the portion of the plug-in portion 212 passing through the through hole 51, and the first external thread 213 is threadedly connected with the second internal threaded hole, so that the first stopper 23 abuts against the adjustment frame 1, thereby achieving the fixing of the fixed rod body 21 and the adjustment frame 1.

[0046] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention and are not intended to limit the present invention to the specific embodiments described. Obviously, other modifications and variations may be made based on the contents of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. They are not intended to limit the present invention, and any simple variations of the present invention fall within the scope of protection of the present invention.

Claims

1. A wire rope tightening device, characterized in that: It includes an adjustment frame, a rotating rod and two connecting rods; a first internal threaded hole is provided through both ends of the adjustment frame; a plug hole is provided through the middle of the adjustment frame; The rotating rod includes a fixed rod body, a movable rod body detachably connected to the fixed rod body, and a first stopper; the fixed rod body includes a first gripping portion and an inserting portion; the outer diameter of the inserting portion is smaller than the outer diameter of the first gripping portion, and a first external thread is provided on the outer surface of the inserting portion, and a second internal thread hole is provided through the first stopper; The fixed rod is inserted into the insertion hole through the insertion portion, so that the adjustment frame abuts against the first gripping portion; the first stopper is sleeved on the insertion portion, and the first external thread is threadedly connected to the second internal threaded hole, so that the first stopper abuts against the adjustment frame and fixes the adjustment frame between the first gripping portion and the first stopper; the movable rod is detachably mounted on the end of the insertion portion; A hook is provided at one end of the connecting rod, and a second external thread is provided on the outer surface of the other end, and the rotation directions of the second external threads of the two connecting rods are opposite; the end of the connecting rod away from the hook is inserted into the interior of the adjustment frame and is threadedly connected to the corresponding first internal threaded hole through the second external thread.

2. A wire rope tightening device according to claim 1, characterized in that: The movable rod body includes a second gripping portion and a threaded rod fixedly connected to one end of the second gripping portion. The end of the plug-in portion is provided with a third internal threaded hole. The movable rod body is threadedly connected to the third internal threaded hole through the threaded rod.

3. A wire rope tightening device according to claim 2, characterized in that: The outer surfaces of the first gripping portion and the second gripping portion are both provided with an anti-slip pattern.

4. A wire rope tightening device according to claim 1, characterized in that: It also includes a second stopper, which is provided with a through hole. The second stopper is sleeved on the plug-in portion through the through hole and abuts against the first gripping portion.

5. The wire rope tightening device according to claim 1, characterized in that: It also includes a second stopper, which is provided with a through hole. The second stopper is fixedly arranged in the plug hole, and the second stopper is sleeved on the plug part through the through hole.

6. A wire rope tightening device according to claim 1, characterized in that: The end of the connecting rod away from the hook is provided with a limiting block for preventing the connecting rod from being separated from the first internal threaded hole, and the limiting block is located in the adjustment frame.

7. The wire rope tightening device according to claim 1, characterized in that: The two connecting rods are located on the same straight line and are symmetrical along a preset plane; the preset plane is perpendicular to the plane where the adjustment frame is located.

8. A wire rope tightening device according to claim 7, characterized in that: The plug hole is perpendicular to the plane where the adjustment frame is located.

9. The wire rope tightening device according to claim 1, characterized in that: The outer surfaces of the rotating rod and the adjusting frame are sprayed with a wear-resistant coating.

10. The wire rope tightening device according to claim 1, characterized in that: A plurality of limiting protrusions are provided on the inner side of the hook.

Images