Rope winding and unwinding structure of reel

Abstract

The utility model discloses a reel rope take-up and pay-off structure, which relates to the field of reposition surgical instruments and comprises an annular groove, a rope take-up and pay-off device, a rope take-up and pay-off device, a rope take-up and pay-off device, a rope take-up and pay-off device and a rope take-up and pay-off device, the first ball head plunger is arranged on the side wall of one side of the annular groove, the first ball head plunger comprises a first telescopic ball, and the telescopic direction of the first telescopic ball is parallel to the axis direction of the reel; the winding guide block is arranged on the side wall of the other side of the annular groove, the winding guide block comprises a second telescopic ball corresponding to the first telescopic ball, and the telescopic direction of the second telescopic ball is parallel to the axis direction of the winding wheel; when the traction rope is wound in the annular groove, the traction rope extrudes the first telescopic ball and the second telescopic ball, and when the traction rope is located in the annular groove, the first telescopic ball and the second telescopic ball stretch out mutually. According to the rope winding and unwinding structure, the situation that the traction rope is wound to the outer side of the winding wheel in the rope winding and unwinding process can be avoided.

Description

Technical Field

[0001] The utility model belongs to the field of reduction surgical instruments, and more specifically, relates to a wire reel rope winding and unwinding structure. Background Art

[0002] In many orthopedic reduction surgeries, patients need to be tractioned to assist in the reduction of orthopedic surgeries. During the initial traction process of traditional traction equipment, since the traction rope is in a slack state and the traction end is generally obliquely below the wire reel, the traction rope may wind to the outside of the wire reel. During the process of the traction rope winding to the outside of the wire reel, the traction rope is easily bent and damaged, thus affecting the service life of the traction rope and ultimately reducing the safety factor of the traction rope. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a wire reel rope winding and unwinding structure aiming at the deficiencies of the existing technology. This rope winding and unwinding structure can avoid the situation that the traction rope winds to the outside of the wire reel during the rope winding and unwinding process.

[0004] To achieve the above purpose, the utility model provides a wire reel rope winding and unwinding structure, including:

[0005] A ring groove is arranged along the circumferential direction of the wire reel, and one side wall of the ring groove is higher than the other side wall;

[0006] A first ball head plunger is arranged on one side wall of the ring groove. The first ball head plunger includes a first telescopic ball, and the telescopic direction of the first telescopic ball is parallel to the axis direction of the wire reel;

[0007] A wire winding guide block is arranged on the other side wall of the ring groove. The wire winding guide block includes a second telescopic ball corresponding to the first telescopic ball, and the telescopic direction of the second telescopic ball is parallel to the axis direction of the wire reel;

[0008] When the traction rope winds in the ring groove, the traction rope squeezes the first telescopic ball and the second telescopic ball. When the traction rope is in the ring groove, the first telescopic ball and the second telescopic ball extend out of each other.

[0009] Optionally, it further includes a wear-resistant ring. The first ball head plunger is a flange-type ball head plunger, and the wear-resistant ring is connected to one side wall of the ring groove through a plurality of the flange-type ball head plungers.

[0010] Optionally, a plurality of second ball head plungers are evenly distributed along the circumferential direction on the other side wall of the ring groove, and the second ball head plungers are in interference fit with the mounting holes of the wire winding guide block.

[0011] Optionally, the wire winding guide block is connected to the wire reel by screws.

[0012] Optionally, the profile surfaces on both the side close to the inside of the annular groove and the side far from the inside of the annular groove of the wire winding guide block are both inclined surfaces.

[0013] Optionally, a drawstring pressing block for fixing the drawstring is arranged in the annular groove.

[0014] Optionally, springs are included in both the first ball head plunger and the wire winding guide block, and the springs are connected to the first telescopic ball and the second telescopic ball.

[0015] Optionally, the wire winding wheel is made of aluminum alloy.

[0016] Optionally, the drawstring is made of stainless steel.

[0017] Optionally, the wear-resistant ring is made of alloy steel.

[0018] The present utility model provides a wire winding wheel rope winding and unwinding structure, and its beneficial effects are as follows: The structure of this wire winding wheel rope winding and unwinding structure is simple, and it will not increase the volume and weight of the wire winding wheel too much. In addition, during the process of replacing the drawstring, there will be no cumbersome operation. This structure can effectively prevent the drawstring from falling off the annular groove in a slack state and avoid the situation of the drawstring being bent and damaged.

[0019] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Brief Description of the Drawings

[0020] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above-mentioned and other objects, features, and advantages of the present utility model will become more obvious. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0021] Figure 1 The structural schematic diagram of a wire winding wheel rope winding and unwinding structure according to an embodiment of the present utility model is shown.

[0022] Figure 2 The connection schematic diagram of the drawstring and the annular groove according to an embodiment of the present utility model is shown.

[0023] Figure 3 The cross-sectional view of a wire winding wheel rope winding and unwinding structure according to an embodiment of the present utility model is shown.

[0024] Description of the Reference Numerals in the Drawings:

[0025] 1. Winding wheel; 2. Wear-resistant ring; 3. Traction rope pressure block; 4. Winding guide block; 5. Second ball plunger; 6. First ball plunger; 7. Traction rope; 701. Traction rope head; 8. Ring groove. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0027] The utility model provides a winding wheel rope-releasing structure, comprising:

[0028] An annular groove is arranged along the circumference of the winding wheel, and a side wall of one side of the annular groove is higher than a side wall of the other side;

[0029] A first ball plunger is disposed on a side wall of the annular groove, the first ball plunger comprises a first telescopic ball, and the telescopic direction of the first telescopic ball is parallel to the axis direction of the winding wheel;

[0030] A winding guide block is arranged on the other side wall of the annular groove, and the winding guide block includes a second telescopic ball arranged corresponding to the first telescopic ball, and the telescopic direction of the second telescopic ball is parallel to the axis direction of the winding wheel;

[0031] When the traction rope is wound in the annular groove, the traction rope squeezes the first telescopic ball and the second telescopic ball. When the traction rope is in the annular groove, the first telescopic ball and the second telescopic ball extend out from each other.

[0032] The cam is a cylindrical structure with an annular groove on the outer periphery of the middle section of the cam, and cylinders of different diameters are formed on both sides of the annular groove. The side wall of the cylinder with a larger diameter close to the annular groove is one side wall of the annular groove, and the side wall of the cylinder with a smaller diameter close to the annular groove is the other side wall of the annular groove. A plurality of first ball plungers are arranged on one side wall of the annular groove, and a first telescopic ball is arranged in the first ball plunger to telescope into the annular groove. A plurality of winding guide blocks are arranged on the other side wall of the annular groove, and a second telescopic ball is arranged on each winding guide block. The second telescopic ball is also telescopically arranged into the annular groove. The two telescopic balls are arranged opposite to each other. In this way, when the traction rope is wound around the annular groove for storage, the traction rope will squeeze and retract the two telescopic balls to the two sides of the annular groove, so that the traction rope can be stored on the winding wheel. When the traction rope is placed in the annular groove, the two telescopic balls naturally telescope in a direction close to each other, thus preventing the traction rope from escaping from the annular groove.

[0033] Optionally, it further includes a wear-resistant ring. The first ball head plunger is a ball head plunger with a flange. The wear-resistant ring is connected to one side wall of the ring groove through a plurality of ball head plungers with flanges.

[0034] Optionally, the wear-resistant ring is made of alloy steel.

[0035] Specifically, a wear-resistant ring made of alloy steel is installed on one side wall of the ring groove. In this way, when the towing rope is wound around the ring groove, it can play a guiding role for the towing rope and improve the wear resistance of the winding wheel. The wear-resistant ring is installed on the winding wheel by using a ball head plunger with a flange, which can simplify the rope winding and unwinding structure. One component can play two roles. The wear-resistant ring is clamped and fixed through the flange structure, and the towing rope can also be limited and fixed by the first telescopic ball of the first ball head plunger.

[0036] Optionally, a plurality of second ball head plungers are evenly distributed along the circumferential direction on the other side wall of the ring groove. The second ball head plunger is in interference fit with the mounting hole of the winding guide block.

[0037] Specifically, a winding guide block is installed on the other side wall of the ring groove. The winding guide block corresponds to the annular part where the cylinder with a larger diameter dimension is more than the cylinder with a smaller diameter dimension. Then, a second ball head plunger is installed on the winding guide block, and the two ball head plungers are arranged correspondingly. When the two telescopic balls are in the natural extended state, the towing rope can be restricted in the ring groove.

[0038] Optionally, the winding guide block is connected to the winding wheel by screws.

[0039] Specifically, the screws are arranged along the radial direction of the cylinder with a smaller diameter dimension. In this way, as long as the screws are tightened, the winding guide block can be installed in place on the winding wheel, making the telescopic balls on both sides centered and forming a limiting effect on the towing rope.

[0040] Optionally, the profile surfaces on both the side close to the inside of the ring groove and the side far from the inside of the ring groove of the winding guide block are both set as inclined surfaces.

[0041] Specifically, the two sides of the winding guide block are provided with inclined surfaces. In this way, when the towing rope winds around the winding wheel, the towing rope first contacts the telescopic ball through the outer inclined surface. After applying a force towards the inside of the ring groove, the telescopic balls on both sides of the ring groove can be pushed open by the towing rope, so that the towing rope can enter the ring groove. After entering the ring groove, due to the inclined surface on the inside of the winding guide block, the profile surface of the towing rope in the ring groove can be limited, reducing the possibility of the towing rope disengaging from the ring groove.

[0042] Optionally, a towing rope pressing block for fixing the towing rope is arranged in the ring groove.

[0043] Specifically, the traction rope pressing block is fixed in the annular groove of the winding wheel through screws. The traction rope pressing block can fix the head of the traction rope, thus preventing the traction rope from separating from the winding wheel.

[0044] Optionally, springs are included in both the first ball head plunger and the winding guide block. The springs are connected to the first telescopic ball and the second telescopic ball.

[0045] Specifically, by arranging springs between the first telescopic ball and the second telescopic ball and the fixed base, the telescopic movement of the telescopic balls can be realized. When the traction rope is wound around the annular groove, the telescopic balls retract. When the traction rope is placed loosely in the annular groove, the telescopic balls extend to limit the traction rope, preventing the traction rope from detaching from the annular groove.

[0046] Optionally, the winding wheel is made of aluminum alloy.

[0047] Optionally, the traction rope is made of stainless steel.

[0048] Specifically, by defining the materials of the winding wheel and the traction rope, the weight of the entire structure can be reduced. In addition to ensuring the practicality of the winding wheel, it can also prevent the traction rope from being bent and damaged during the process of winding and unwinding the rope.

[0049] Embodiment

[0050] As Figures 1 to 3 shown, the present utility model provides a winding wheel rope winding and unwinding structure, including:

[0051] An annular groove 8 is provided along the circumferential direction of the winding wheel 1. The lower side wall of the annular groove 8 is higher than the upper side wall.

[0052] A first ball head plunger 6 is arranged on the lower side wall of the annular groove 8. The first ball head plunger 6 includes a first telescopic ball, and the telescopic direction of the first telescopic ball is parallel to the axis direction of the winding wheel 1.

[0053] A winding guide block 4 is arranged on the upper side wall of the annular groove. The winding guide block 4 includes a second telescopic ball corresponding to the first telescopic ball, and the telescopic direction of the second telescopic ball is parallel to the axis direction of the winding wheel 1.

[0054] When the traction rope 7 is wound in the annular groove, the traction rope 7 squeezes the first telescopic ball and the second telescopic ball. When the traction rope 7 is in the annular groove, the first telescopic ball and the second telescopic ball extend out of each other.

[0055] In this embodiment, it further includes a wear-resistant ring 2. The first ball head plunger 6 is a ball head plunger with a flange. The wear-resistant ring 2 is connected to the lower side wall of the annular groove through two ball head plungers with flanges.

[0056] In this embodiment, two second ball head plungers 5 are evenly distributed along the circumferential direction on the upper side wall of the annular groove 8, and the second ball head plungers 5 are in interference fit with the mounting holes of the wire winding guide block 4.

[0057] In this embodiment, the wire winding guide block 4 and the wire winding wheel 1 are connected by screws.

[0058] In this embodiment, the profile surfaces on both the side close to the inside of the annular groove 8 and the side far from the inside of the annular groove 8 of the wire winding guide block 4 are both set as inclined surfaces.

[0059] In this embodiment, a traction rope pressing block 3 for fixing the head 701 of the traction rope is arranged in the annular groove 8.

[0060] In this embodiment, both the first ball head plunger 6 and the wire winding guide block 4 include springs, and the springs are connected to the first telescopic ball and the second telescopic ball.

[0061] In this embodiment, the material of the wire winding wheel 1 is aluminum alloy.

[0062] In this embodiment, the material of the traction rope 7 is stainless steel.

[0063] In this embodiment, the material of the wear-resistant ring 2 is alloy steel.

[0064] In summary, in the wire winding and unwinding rope structure of this wire winding wheel, the wear-resistant ring 2 is connected to the wire winding wheel 1 through the first ball head plunger 6, and the wear-resistant ring 2 structure is installed on the wire winding wheel 1. In this way, the wear-resistant ring 2 can simultaneously play the role of guiding the traction rope 7 and improving wear resistance. The traction rope pressing block 3 is fixed on the wire winding wheel 1 by screws, and the traction rope pressing block 3 is used to fix the head 701 of the traction rope to prevent the traction rope 7 from separating from the wire winding wheel 1. The second ball head plunger 5 is installed in the mounting hole of the wire winding guide block 4 by interference fit, and the wire winding guide block 4 is fixed on the wire winding wheel 1 by screws. The two sides of the wire winding guide block 4 are of inclined surface structures, which can realize the guiding of the traction rope 7. When the traction rope 7 needs to be wound around the annular groove 8, the traction rope 7 contacts the second ball head plunger 5 and the first ball head plunger 6, and the telescopic balls of the second ball head plunger 5 and the first ball head plunger 6 are compressed. When the traction rope 7 enters the annular groove of the wire winding wheel 1, at this time, the telescopic balls of the second ball head plunger 5 and the first ball head plunger 6 reset. When the traction rope is in a relaxed state, the telescopic balls of the second ball head plunger 5 and the first ball head plunger 6 block the movement of the traction rope 7 towards the outside of the wire winding wheel 1. Since two sets of second ball head plunger 5 and first ball head plunger 6 structures are symmetrically installed on the wire winding wheel 1, it can prevent the traction rope 7 from winding to the outside of the wire winding wheel 1.

[0065] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A winding wheel rope retracting and releasing structure, characterized in that, Comprising: A ring groove is provided circumferentially around the winding wheel, and one side wall of the ring groove is higher than the other side wall; A first ball head plunger is provided on one side wall of the ring groove. The first ball head plunger includes a first telescopic ball, and the telescopic direction of the first telescopic ball is parallel to the axis direction of the winding wheel; A wire winding guide block is provided on the other side wall of the ring groove. The wire winding guide block includes a second telescopic ball corresponding to the first telescopic ball, and the telescopic direction of the second telescopic ball is parallel to the axis direction of the winding wheel; When the towing rope is wound in the ring groove, the towing rope squeezes the first telescopic ball and the second telescopic ball. When the towing rope is in the ring groove, the first telescopic ball and the second telescopic ball extend out of each other.

2. The winding wheel rope retracting and extending structure according to claim 1, characterized in that, It further includes a wear-resistant ring. The first ball head plunger is a ball head plunger with a flange. The wear-resistant ring is connected to one side wall of the ring groove through a plurality of the ball head plungers with flanges.

3. The wire reel rope retracting and extending structure according to claim 1, characterized in that A plurality of second ball head plungers are evenly distributed circumferentially on the other side wall of the ring groove, and the second ball head plungers are in interference fit with the mounting holes of the wire winding guide block.

4. The wire winding wheel rope retracting and releasing structure according to claim 3, characterized in that, The wire winding guide block is connected to the winding wheel by screws.

5. The winding wheel rope retracting and extending structure according to claim 3, characterized in that, Both the side surface of the wire winding guide block close to the inside of the ring groove and the side surface away from the inside of the ring groove are provided as inclined surfaces.

6. The wire winding wheel rope retracting and extending structure according to claim 1, characterized in that A towing rope pressing block for fixing the towing rope is provided in the ring groove.

7. The winding wheel rope retracting and extending structure according to claim 1, characterized in that, Both the first ball head plunger and the wire winding guide block include springs, and the springs are connected to the first telescopic ball and the second telescopic ball.

8. The winding wheel rope retracting and extending structure according to claim 1, characterized in that, The winding wheel is made of aluminum alloy.

9. The wire reel rope retracting and extending structure according to claim 1, wherein The towing rope is made of stainless steel.

10. The winding wheel rope retracting and extending structure according to claim 2, characterized in that, The wear-resistant ring is made of alloy steel.

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