Electric lower limb tractor
Through the design of the electric lower limb traction device, the tension is adjusted using the rolling parts and the worm gear transmission system, which solves the problem of difficult suspension heavy objects in the prior art, and improves the operation convenience and treatment effect of the traction device.
Patent Information
- Application Number
- CN202323015330.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-11-08
AI Technical Summary
In the prior art, the lower limb traction device realizes traction by hanging heavy objects, but it is difficult to adjust the weight, affecting operational safety and efficiency.
An electric lower limb traction device is designed, using strap assembly, support assembly and traction assembly. The power member pulls the pull rope through the rolling member, and adjusts the tension with the stepper motor and worm gear transmission system to avoid suspending heavy objects.
It realizes flexible adjustment of tension, improves the convenience and safety of operation, and is suitable for the therapeutic effects of fracture reduction, correcting contracture deformity, improving venous return and reducing swelling.
Smart Images

Figure CN222195222U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lower limb traction, in particular to an electric lower limb traction device. Background Art
[0002] Traction can reduce fractures and dislocations, and maintain stability after dislocation. It can also correct contracted and deformed limbs, improve venous return in the legs, eliminate swelling in the legs, and create a strong environment and adjustment for surgical treatment. Traction in the prior art is mainly achieved by hanging heavy objects, but it is difficult to adjust the weight of the heavy objects during operation, and the operation is very invariant. These heavy objects are mostly bricks and other heavy objects, which can also affect the safety of the ward. Utility Model Content
[0003] In view of the defects in the prior art, the utility model provides an electric lower limb traction device, which does not need to hang heavy objects and can adjust the pulling force, so it is more convenient.
[0004] The utility model provides a technical solution: an electric lower limb traction device, comprising:
[0005] A strap assembly, the strap assembly is used to bind the patient's legs, and the strap assembly is also provided with a docking portion;
[0006] A support assembly, the support assembly is fixed to the bedside of the hospital bed, and a pulley is provided on the support assembly;
[0007] The traction assembly comprises a power member and a rolling member. The power member drives the rolling member to rotate, and a pull rope is arranged on the rolling member. The pull rope passes through the pulley of the support assembly and is connected to the docking part of the binding belt assembly.
[0008] The beneficial effect of the above technical solution is that the power member can pull the drawstring through the winding member, and then pull the strap assembly, so that a pulling force can be applied to the patient's lower limbs to play a traction role and achieve a therapeutic effect.
[0009] Furthermore, the rolling member includes a transmission component and a reel, the transmission component includes a meshing worm wheel and a worm, the worm is connected to the output shaft of the power member, the worm wheel is coaxially connected to the reel, and one end of the pull rope is fixed to the outer periphery of the reel.
[0010] Furthermore, the docking portion is a fixed ring, and the end of the pull rope away from the traction assembly is provided with a hook hung on the fixed ring.
[0011] Furthermore, the support assembly includes a U-shaped main frame, both ends of the U-shaped main frame are configured with fixing hooks, a bracket is also provided in the middle of the U-shaped main frame, and the pulley is provided on the bracket.
[0012] Furthermore, it also includes a shell, and the transmission component, the reel and the power component are all accommodated in the shell. The position of the shell corresponding to the reel is provided with a hole for the pull rope to extend out.
[0013] Furthermore, the power component is a stepping motor.
[0014] Furthermore, the pulley is mounted on an adjustment frame, the adjustment frame is rotatably connected to the bracket, and a locking piece is also provided at the position where the adjustment frame and the bracket are rotatably connected.
[0015] Furthermore, there are a plurality of pulleys, and the plurality of pulleys are arranged in parallel and at intervals on the adjustment frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0017] Figure 1 It is a schematic diagram of the use of an embodiment of the utility model;
[0018] Figure 2 A cross-sectional view of a traction assembly in an embodiment of the utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the worm gear in the embodiment of the utility model;
[0020] Figure 4 It is a structural schematic diagram of the support assembly in an embodiment of the utility model.
[0021] Figure numerals: main belt 100, nylon belt 110, fixing ring 120, pull rope 200, hook 210, U-shaped main frame 300, fixing hook 310, bracket 320, locking piece 321, adjustment frame 400, pulley 410, housing 500, hole 501, stepping motor 600, worm gear 700, reel 710, worm 800. DETAILED DESCRIPTION
[0022] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.
[0024] like Figure 1-4 As shown, this embodiment provides an electric lower limb traction device, including a strap assembly, a support assembly and a traction assembly. The strap assembly includes a plurality of nylon straps 110 arranged in parallel on a main belt 100, and Velcro is provided at both ends of the nylon strap 110. The strap assembly is used to tie the patient's legs. The strap assembly is also provided with a docking portion, which is installed on the main belt 100. The support assembly is fixed to the bedside of the bed, and a pulley 410 is provided on the support assembly. The traction assembly includes a power member and a rolling member. The power member drives the rolling member to rotate, and a pull rope 200 is provided on the rolling member. The pull rope 200 passes through the pulley 410 of the support assembly and is connected to the docking portion of the strap assembly.
[0025] When in use, the power member can pull the pull rope 200 through the winding member, and then pull the strap assembly, so that a pulling force can be applied to the patient's lower limbs to play a traction role and achieve a therapeutic effect.
[0026] The rolling element includes a transmission component and a reel 710, the transmission component includes a meshing worm wheel 700 and a worm 800, the worm 800 is connected to the output shaft of the power element, the worm wheel 700 is coaxially connected to the reel 710, and one end of the pull rope 200 is fixed to the outer periphery of the reel 710. The worm wheel 700 and the worm 800 have a self-locking effect, so that the pull rope 200 can maintain tension.
[0027] The docking portion is a fixing ring 120 , and a hook 210 hung on the fixing ring 120 is provided at one end of the pull rope 200 away from the traction assembly.
[0028] Most patients recuperate on beds. In order to fix the support assembly on the bed, the support assembly is constructed to include a U-shaped main frame 300. Both ends of the U-shaped main frame 300 are configured with fixing hooks 310. The middle of the U-shaped main frame 300 is also provided with a bracket 320, and a pulley 410 is arranged on the bracket 320.
[0029] For the convenience of arrangement, a housing 500 is also included, and the transmission components, the reel 710 and the power element are all accommodated in the housing 500. A hole 501 for the pull rope 200 to extend is provided on the housing 500 at a position corresponding to the reel 710. Further, the power element is a stepping motor 600.
[0030] In order to adjust the angle of the pulley 410, the pulley 410 is installed on an adjustment frame 400, and the adjustment frame 400 is rotatably connected to the bracket 320. The portion where the adjustment frame 400 and the bracket 320 are rotatably connected is also provided with a locking member 321. Further, there are multiple pulleys 410, and the multiple pulleys 410 are arranged on the adjustment frame 400 in parallel and at intervals.
[0031] In the description of this application, it should be understood that the terms in this application are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of this utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically limited.
[0032] In this application, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0033] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, systems and techniques are not shown in detail so as not to obscure the understanding of this specification.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. An electric lower limb traction device, characterized in that: include: A strap assembly, the strap assembly is used to bind the patient's legs, and the strap assembly is also provided with a docking portion; A support assembly, the support assembly being fixed to the bedside of the hospital bed, and the support assembly being provided with a pulley (410); A traction assembly, the traction assembly comprising a power member and a rolling member, the power member drives the rolling member to rotate, a pull rope (200) is provided on the rolling member, and the pull rope (200) is connected to the docking part of the binding belt assembly after passing through the pulley (410) of the support assembly.
2. The electric lower limb traction device according to claim 1, characterized in that: The rolling member comprises a transmission component and a reel (710), wherein the transmission component comprises a meshing worm wheel (700) and a worm (800), wherein the worm (800) is connected to the output shaft of the power member, and the worm wheel (700) is coaxially connected to the reel (710), and one end of the pull rope (200) is fixed to the outer periphery of the reel (710).
3. The electric lower limb traction device according to claim 1, characterized in that: The docking portion is a fixing ring (120), and one end of the pull rope (200) away from the traction assembly is provided with a hook (210) hung on the fixing ring (120).
4. The electric lower limb traction device according to claim 1, characterized in that: The support assembly comprises a U-shaped main frame (300), both ends of the U-shaped main frame (300) are provided with fixing hooks (310), a bracket (320) is further provided in the middle of the U-shaped main frame (300), and the pulley (410) is provided on the bracket (320).
5. The electric lower limb traction device according to claim 2, characterized in that: It also includes a housing (500), wherein the transmission component, the reel (710) and the power component are all accommodated in the housing (500), and a hole (501) for the pull rope (200) to extend out is provided on the housing (500) at a position corresponding to the reel (710).
6. The electric lower limb traction device according to claim 5, characterized in that: The power component is a stepping motor (600).
7. The electric lower limb traction device according to claim 4, characterized in that: The pulley (410) is mounted on an adjustment frame (400), and the adjustment frame (400) is rotationally connected to the bracket (320). A locking member (321) is also provided at the portion where the adjustment frame (400) and the bracket (320) are rotationally connected.
8. The electric lower limb traction device according to claim 7, characterized in that: There are a plurality of pulleys (410), and the plurality of pulleys (410) are arranged in parallel and at intervals on the adjustment frame (400).
