Lower limb traction device capable of adjusting traction force

Abstract

The utility model provides a lower limb traction device capable of adjusting traction force. The lower limb traction device comprises a supporting mechanism and an adjusting mechanism. The supporting mechanism comprises a base, a hollow shell is fixedly connected to the top of the base, a support is slidably connected to the interior of the hollow shell, pulleys are uniformly and rotatably connected to the support, and a traction rope is tensioned on the pulleys; the adjusting mechanism comprises two box bodies symmetrically and fixedly connected to the top of the base and a U-shaped plate fixedly connected to one end of the traction rope, and the bottom of the U-shaped plate is rotationally connected with an inner threaded pipe through a connecting block. According to the utility model, the counterweight discs capable of lifting and moving are uniformly arranged in the box body, so that the counterweight discs can provide traction force for the traction rope in the box body, thereby solving the problem that medical personnel are easy to touch the counterweight blocks when passing by, and further eliminating the potential safety hazard that the counterweight blocks fall off; and the safety and the stability of the lower limb traction device in use are improved.

Description

Technical Field

[0001] The utility model relates to a lower limb traction device, in particular to a lower limb traction device with adjustable traction force, belonging to the technical field of orthopedic treatment. Background Art

[0002] As is known to all, during orthopedic treatment, for patients with leg fractures, bone cracks, dislocations, etc., a lower limb traction device is required for positioning during the treatment and rehabilitation process; as a prior art of lower limb traction devices, a Chinese patent publication (publication number: CN218922912U) discloses a lower limb traction device, which includes a support frame, a support pad, a foot restraint and a traction member; the support pad is arranged on the support frame for supporting the leg, the foot restraint is slidably arranged on the support frame, and the traction member is arranged on the support frame and connected to the foot restraint, and is used to pull the foot restraint toward a side away from the support pad. This application can facilitate medical staff to treat the patient's legs.

[0003] However, when the lower limb traction device mentioned in the above patent is in use, since the counterweight blocks connected to the traction rope are directly stacked on the outside, and the counterweight blocks are usually iron weights, medical staff can easily touch the counterweight blocks when passing by. There is also a safety hazard of the counterweight blocks falling, which is not conducive to maintaining the safety and stability of the lower limb traction device when in use. For this reason, a lower limb traction device with adjustable traction force is proposed. Utility Model Content

[0004] In view of this, the utility model provides a lower limb traction device with adjustable traction force to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the utility model is implemented as follows: a lower limb traction device with adjustable traction force, comprising a supporting mechanism and an adjusting mechanism;

[0006] The support mechanism comprises a base, a hollow shell is fixedly connected to the top of the base, a bracket is slidably connected to the inside of the hollow shell, a pulley is evenly rotatably connected to the bracket, and a traction rope is tensioned on the pulley;

[0007] The adjusting mechanism includes two boxes symmetrically fixedly connected to the top of the base and a U-shaped plate fixedly connected to one end of the traction rope. The bottom of the U-shaped plate is rotatably connected to an internal threaded tube through a connecting block. Two screws are arranged inside the internal threaded tube. Two opposite threads are arranged on the inner side wall of the internal threaded tube. The two screws are respectively threadedly connected to the two opposite threads. One side of the outer wall of the screw is movably connected to the U-shaped plate. One end of the screw is fixedly connected to an insertion rod. The interior of the box is evenly and movably connected with a counterweight plate. A through hole is provided inside the counterweight plate for inserting the insertion rod. An empty groove is provided on the adjacent sides of the two boxes for the screw to pass through.

[0008] Further preferably, the inner side wall of the box body is evenly provided with equidistantly arranged sliding grooves, and sliding blocks are fixedly connected to both sides of the counterweight plate, and the sliding blocks are slidably connected to the inner side walls of the sliding grooves.

[0009] Further preferably, a door is hinged on one side of the box body.

[0010] Further preferably, universal wheels are evenly and fixedly mounted on the bottom of the base.

[0011] Further preferably, a through slot is provided on one side of the hollow shell, a threaded rod is fixedly connected to one side of the bracket, one end of the threaded rod passes through the through slot and extends to the outside of the hollow shell, and a nut is threadedly connected to the threaded rod.

[0012] Further preferably, a connecting plate is fixedly connected to one side of the outer wall of the screw rod, a rod body is slidably connected to the inside of the connecting plate, and one end of the rod body is fixedly connected to the U-shaped plate.

[0013] Further preferably, one end of the rod body away from the U-shaped plate is fixedly connected to a stopper.

[0014] Further preferably, a rubber sleeve is fixedly mounted on the internally threaded tube, and equidistantly distributed convex strips are evenly and fixedly connected to the outer side of the rubber sleeve.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. The utility model provides an adjustment mechanism on the support mechanism so that after the internal threaded tube is rotated, the two insertion rods can be driven by the screw rod to move closer to or away from each other, so that the insertion rods can be inserted into or removed from the through holes of the counterweight plate, and then the corresponding number of counterweight plates can be lifted under the drive of the insertion rods, so that the staff can adjust the traction force of the traction rope by rotating the internal threaded tube.

[0017] 2. The utility model arranges a counterweight plate that can be raised and lowered inside the box, so that the counterweight plate can provide traction for the traction rope inside the box, thereby solving the problem that medical staff are likely to touch the counterweight when passing by, thereby eliminating the safety hazard of the counterweight falling, and improving the safety and stability of the lower limb traction device when in use.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is an enlarged schematic diagram of area A of the structural diagram in the utility model;

[0022] Figure 3 It is a structural diagram of the adjustment mechanism in the utility model;

[0023] Figure 4 It is an enlarged schematic diagram of area B of the adjustment mechanism structure diagram in the utility model;

[0024] Figure 5 It is a structural diagram of the internal threaded tube and the screw rod in the utility model.

[0025] Figure numerals: 1. Support mechanism; 10. Base; 11. Hollow shell; 12. Bracket; 13. Pulley; 14. Traction rope; 15. Universal wheel; 16. Through slot; 17. Threaded rod; 18. Nut; 2. Adjustment mechanism; 20. Box body; 21. U-shaped plate; 22. Connecting block; 23. Internally threaded tube; 24. Screw rod; 25. Insert rod; 26. Counterweight plate; 27. Through hole; 28. Empty slot; 29. ​​Slide groove; 201. Slider; 202. Rubber sleeve; 203. Raised strip; 204. Connecting plate; 205. Rod body; 206. Block; 207. Box door. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, an embodiment of the utility model provides a lower limb traction device with adjustable traction force, including a supporting mechanism 1 and an adjusting mechanism 2.

[0029] In one embodiment, in order to enable the base 10 to support the bracket 12 through the hollow shell 11 after being placed on the ground, so that one end of the traction rope 14 can pull the user's lower limbs under the action of the pulley 13 after being stressed, the support mechanism 1 includes a base 10, the top of the base 10 is fixedly connected to the hollow shell 11, the interior of the hollow shell 11 is slidably connected to the bracket 12, the pulley 13 is evenly rotatably connected to the bracket 12, and the traction rope 14 is tensioned on the pulley 13.

[0030] In one embodiment, in order to rotate the internal threaded tube 23 clockwise, the two screw rods 24 can move away from each other, so that the insertion rod 25 can enter the interior of the box body 20 after passing through the empty groove 28, and then the insertion rod 25 can be inserted into the through hole 27 of the counterweight plate 26, and as the insertion rod 25 gradually goes deeper into the box body 20, the number of counterweight plates 26 mounted on the insertion rod 25 also increases. When the traction rope 14 is pulled up, the insertion rod 25 can be driven to move upward through the U-shaped plate 21 and the internal threaded tube 23, so that the counterweight plate 26 can slide upward inside the box body 20 under the action of the insertion rod 25; in addition, in order to rotate the internal threaded tube 23 counterclockwise, the two screw rods 24 can move closer to each other, so that the counterweight plate 26 mounted on the insertion rod 25 is reduced, which is convenient for the staff to adjust the weight according to the rotation of the internal threaded tube 23. The actual need is to adjust the traction force; the adjusting mechanism 2 includes two boxes 20 symmetrically fixedly connected to the top of the base 10 and a U-shaped plate 21 fixedly connected to one end of the traction rope 14. The bottom of the U-shaped plate 21 is rotatably connected to an internal threaded tube 23 through a connecting block 22. Two screw rods 24 are arranged inside the internal threaded tube 23. Two opposite threads are arranged on the inner side wall of the internal threaded tube 23. The two screw rods 24 are respectively threadedly connected to the two opposite threads. One side of the outer wall of the screw rod 24 is movably connected to the U-shaped plate 21, and one end of the screw rod 24 is fixedly connected to an insertion rod 25. The interior of the box 20 is evenly and movably connected with a counterweight plate 26. The interior of the counterweight plate 26 is provided with a through hole 27 for inserting the insertion rod 25. The adjacent sides of the two boxes 20 are provided with empty grooves 28 for the screw rod 24 to pass through.

[0031] In one embodiment, in order for the counterweight plate 26 to be able to move up and down smoothly in a straight line inside the box 20, the inner wall of the box 20 is evenly provided with equidistantly arranged slide grooves 29, and sliders 201 are fixedly connected to both sides of the counterweight plate 26, and the sliders 201 are slidably connected to the inner walls of the slide grooves 29; in order to facilitate the closed protection of the counterweight plate 26, a box door 207 is hinged on one side of the box 20.

[0032] In one embodiment, in order to facilitate the movement of the base 10 and to position the base 10 after the movement, universal wheels 15 are evenly and fixedly mounted on the bottom of the base 10 .

[0033] In one embodiment, in order to be able to adjust the use height of the bracket 12 on the hollow shell 11 by tightening or loosening the nut 18, a through slot 16 is opened on one side of the hollow shell 11, and a threaded rod 17 is fixedly connected to one side of the bracket 12. One end of the threaded rod 17 passes through the through slot 16 and extends to the outside of the hollow shell 11, and a nut 18 is threadedly connected to the threaded rod 17.

[0034] In one embodiment, in order to enable the screw rod 24 to move in a straight trajectory when subjected to the force of the internal threaded tube 23, a connecting plate 204 is fixedly connected to one side of the outer wall of the screw rod 24, and a rod body 205 is slidably connected to the inside of the connecting plate 204, and one end of the rod body 205 is fixedly connected to the U-shaped plate 21; in order to facilitate the limitation of the movement of the screw rod 24, a stopper 206 is fixedly connected to the end of the rod body 205 away from the U-shaped plate 21.

[0035] In one embodiment, in order to improve the stability when rotating the internally threaded tube 23 , a rubber sleeve 202 is fixedly mounted on the internally threaded tube 23 , and equidistantly distributed convex strips 203 are evenly and fixedly connected to the outer side of the rubber sleeve 202 .

[0036] When the utility model is working: after the base 10 moves to the specified position, the bracket 12 can be supported by the hollow shell 11, so that one end of the traction rope 14 can be pulled on the user's lower limbs under the action of the pulley 13 after the force is applied; when the traction force needs to be increased, the internal threaded tube 23 is rotated clockwise, and the two screw rods 24 can move away from each other, so that the insertion rod 25 can enter the interior of the box body 20 after passing through the empty slot 28, and then the insertion rod 25 can be inserted into the through hole 27 of the counterweight plate 26, and as As the insertion rod 25 gradually goes deeper into the box body 20, the number of counterweight plates 26 mounted on the insertion rod 25 also increases. When the traction rope 14 is pulled up, the insertion rod 25 can be driven to move upward through the U-shaped plate 21 and the internal threaded tube 23, so that the counterweight plates 26 can slide upward inside the box body 20 under the action of the insertion rod 25; in addition, when the internal threaded tube 23 is rotated counterclockwise, the two screw rods 24 can move closer to each other, thereby reducing the number of counterweight plates 26 mounted on the insertion rod 25, making it easier for the staff to reduce the traction force.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lower limb traction device with adjustable traction force, characterized in that: It comprises a supporting mechanism (1) and an adjusting mechanism (2); The support mechanism (1) comprises a base (10), the top of the base (10) is fixedly connected to a hollow shell (11), the interior of the hollow shell (11) is slidably connected to a bracket (12), the bracket (12) is evenly rotatably connected to a pulley (13), and a traction rope (14) is tensioned on the pulley (13); The adjusting mechanism (2) comprises two boxes (20) symmetrically fixedly connected to the top of the base (10) and a U-shaped plate (21) fixedly connected to one end of the traction rope (14); the bottom of the U-shaped plate (21) is rotatably connected to an internal threaded tube (23) through a connecting block (22); two screw rods (24) are arranged inside the internal threaded tube (23); two opposite threads are arranged on the inner side wall of the internal threaded tube (23); the two screw rods (24) are respectively The outer wall of the screw rod (24) is movably connected to the U-shaped plate (21), one end of the screw rod (24) is fixedly connected to an insertion rod (25), the interior of the box body (20) is evenly movably connected to a counterweight plate (26), the interior of the counterweight plate (26) is provided with a through hole (27) for inserting the insertion rod (25), and the adjacent sides of the two boxes (20) are each provided with a hollow groove (28) for the screw rod (24) to pass through.

2. A lower limb traction device with adjustable traction force according to claim 1, characterized in that: The inner side wall of the box body (20) is evenly provided with equidistantly arranged sliding grooves (29), and both sides of the counterweight plate (26) are fixedly connected with sliding blocks (201), and the sliding blocks (201) are slidably connected to the inner side walls of the sliding grooves (29).

3. A lower limb traction device with adjustable traction force according to claim 2, characterized in that: A door (207) is hingedly connected to one side of the box body (20).

4. The lower limb traction device with adjustable traction force according to claim 1, characterized in that: Universal wheels (15) are evenly and fixedly mounted on the bottom of the base (10).

5. The lower limb traction device with adjustable traction force according to claim 1, characterized in that: A through slot (16) is provided on one side of the hollow shell (11); a threaded rod (17) is fixedly connected to one side of the bracket (12); one end of the threaded rod (17) passes through the through slot (16) and extends to the outside of the hollow shell (11); a nut (18) is threadedly connected to the threaded rod (17).

6. The lower limb traction device with adjustable traction force according to claim 1, characterized in that: A connecting plate (204) is fixedly connected to one side of the outer wall of the screw rod (24), a rod body (205) is slidably connected inside the connecting plate (204), and one end of the rod body (205) is fixedly connected to the U-shaped plate (21).

7. A lower limb traction device with adjustable traction force according to claim 6, characterized in that: One end of the rod body (205) away from the U-shaped plate (21) is fixedly connected to a stopper (206).

8. The lower limb traction device with adjustable traction force according to claim 1, characterized in that: A rubber sleeve (202) is fixedly mounted on the internally threaded tube (23), and convex strips (203) distributed at equal distances are evenly and fixedly connected to the outer side of the rubber sleeve (202).

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