Adjustable neck tractor

Abstract

The utility model provides an adjustable neck tractor, which belongs to the technical field of neck tractors, and comprises a main body, the main body is provided with a support frame, a traction rope, a tension release mechanism and a traction force adjusting device, the support frame comprises two parallel support rods and a cross beam, and the traction rope is arranged on the cross beam. The pulling force releasing mechanism is installed on the top of the supporting frame and close to one side of the cross beam, the pulling force releasing mechanism is arranged at one end of the pulling rope and connected with the pulling force adjusting device, the pulling force adjusting device is located on one side of the supporting frame and opposite to the pulling force releasing mechanism, and the pulling rope penetrates through the lower portion of the cross beam. Two ends are respectively connected with the tension releasing mechanism and the traction adjusting device; the traction force adjusting device comprises a fastener and is used for adjusting the initial tension on the traction rope, and the problem that a traditional neck tractor is prone to sudden force change, so that discomfort is caused to the neck is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of neck traction devices, and in particular relates to an adjustable neck traction device. Background Art

[0002] As a common device for non-surgical treatment of cervical spondylosis, the cervical traction device has occupied an important position in the field of clinical medicine and rehabilitation. Cervical spondylosis, including cervical disc herniation, cervical bone spurs, cervical degenerative lesions, etc., is one of the common occupational diseases in modern society. Long-term bad posture, excessive neck fatigue and other factors can lead to changes in the cervical structure, causing symptoms such as neck pain, stiffness and even nerve compression. The cervical traction device applies moderate tension to the cervical spine to help restore the normal curvature of the cervical spine, relieve muscle tension, and reduce intervertebral disc pressure, thereby achieving the purpose of relieving cervical spondylosis symptoms, promoting blood circulation and tissue repair.

[0003] Traditional cervical traction devices often ignore the biomechanical characteristics of the human cervical spine in their design, which may lead to the following problems during traction: Traditional traction devices often lack an effective force control mechanism, making it difficult to dynamically adjust the traction force according to the patient's specific situation and reaction, which can easily cause excessive or insufficient traction. The former may cause cervical spine injury, while the latter affects the treatment effect. When the traction force suddenly increases and exceeds the tolerance of the cervical spine, traditional traction devices are often unable to smoothly release the excess tension, resulting in a sudden change in force. This impact force may cause secondary damage to the cervical spine and increase the risk of treatment. Lack of an effective safety protection mechanism, once the traction force is out of control, it is very easy to cause irreversible damage to the cervical spine, such as aggravation of cervical disc herniation, cervical ligament injury, etc., which increases the uncertainty and risk in the treatment process. Utility Model Content

[0004] In view of this, the utility model provides an adjustable neck traction device, which solves the problem that the traditional neck traction device is prone to sudden force changes and thus causes discomfort to the neck, and can improve the safety and effectiveness of the treatment process.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an adjustable neck traction device, which includes a main body, the main body is provided with a support frame, a traction rope, a tension release mechanism and a traction force adjustment device, the support frame includes two parallel support rods and a cross beam, the tension release mechanism is installed on the top of the support frame, close to one side of the cross beam, the tension release mechanism is arranged at one end of the traction rope, and is connected to the traction force adjustment device, the traction force adjustment device is located on one side of the support frame, opposite to the tension release mechanism, the tension release mechanism includes a spring device and a friction plate, the traction rope passes under the cross beam, and the two ends are respectively connected to the tension release mechanism and the traction force adjustment device;

[0007] The traction force adjustment device includes a fastener for adjusting the initial tension on the traction rope.

[0008] Support frame: Designed as a "gate" structure, it consists of two vertical support rods and a crossbeam. The support rods provide stability for the entire device, while the crossbeam is used to fix and guide the traction rope.

[0009] Traction rope: Passing under the crossbeam, one end is connected to the progressive tension release mechanism, and the other end is connected to the traction adjustment device. The length and tension of the traction rope can be adjusted through the adjustment device to meet different treatment needs.

[0010] Progressive tension release mechanism: Located at one end of the traction rope, it integrates a spring device and a friction plate to control and smooth the release of traction. The mechanism is fixed at a certain position of the support frame to ensure that there is no relative movement during the traction process.

[0011] Traction force adjustment device: installed at the other end of the traction rope, it can achieve fine control of traction force through fasteners (such as the adjustment rod and fastening nut mentioned above). This device is also fixed on the support frame, forming a closed loop of tension transmission with the progressive tension release mechanism.

[0012] On the basis of the above technical solution, the adjustable neck traction device of the utility model can also be improved as follows:

[0013] Among them, the spring device includes a spring, a spring guide, a compression device and a pre-tensioning mechanism. The spring guide is a cylindrical sleeve, the spring is installed inside the spring guide, and the compression device is composed of multiple screws and nuts. One end of the spring is fixed to one end of the spring guide, and the other end is connected to the compression device, which is indirectly connected through the screw and nut.

[0014] The compression ratio of the spring arrangement is positively correlated with the increase in traction force.

[0015] The connection and position relationship between the various components of the spring device:

[0016] spring:

[0017] Position: The main spring is located at the core of the spring mechanism and is usually placed inside or above the spring guide. Its axis is aligned with the direction of the spring guide to ensure that the compression and release movements are performed in a straight line.

[0018] Connection: One end of the main spring is usually fixed to one end of the spring guide, and the other end is connected to the spring compression device, which is indirectly connected through a screw and nut system. This design allows the main spring to be compressed and released under the action of the spring compression device.

[0019] Spring guide:

[0020] Position: The spring guide is fixed to the frame of the spring device and is long enough to accommodate the full length of the main spring, ensuring that the main spring can move along the predetermined axial direction during compression and release.

[0021] Connection: The two ends of the spring guide are connected to the spring preload mechanism and the spring limiter to form a closed movement channel. The inner wall of the spring guide is smooth to reduce the friction with the main spring and ensure the smoothness of movement.

[0022] Compression device:

[0023] Location: The spring compression device is usually located at one end of the main spring, connected to the main spring and spring guide. In a progressive tension release mechanism, the spring compression device is often located at the non-fixed end of the main spring for easy adjustment.

[0024] Connection: The spring compression device is connected to the main spring through a screw and nut system. The screw passes through the spring guide and cooperates with the nut. By rotating the screw, the position of the nut is adjusted, thereby changing the compression degree of the main spring. The other end of the screw is usually connected to the external adjustment handle of the spring device for user convenience.

[0025] Preload mechanism:

[0026] Location: The spring preload mechanism is located at the fixed end of the main spring and is usually combined with one end of the spring guide to ensure that the main spring remains preloaded in its natural state.

[0027] Connection: The spring preload mechanism sets the preload force so that the main spring is in a certain compression state when no external force is applied. This preload force can be achieved by designing a fixed baffle at one end of the spring guide rail, or by a preload bolt, which can be adjusted to meet different preload requirements.

[0028] Spring limiter:

[0029] Location: The spring limiter is located at the end of the maximum compression stroke of the main spring. It can be a part of the spring guide or an additional limit baffle located at the end of the main spring compression stroke.

[0030] Specifically, the spring device can refer to a spring with a bidirectional limiting fixing structure with announcement number CN210830275U (application number: CN201921870022.8): it includes an outer protective cover and an elastic structure, a fixing plate is embedded in the middle of the front side of the outer protective cover, and a sealing sleeve is fitted around the outer wall of the fixing plate, screws are distributed at the four corners of the fixing plate, the elastic structure is arranged in the middle of the outer protective cover, and a soft cushion disk is fitted on the inner wall of the upper end of the elastic structure, a connecting pipe is welded on the top of the elastic structure, and a fixing disk is distributed on the top of the connecting pipe, a bottom plate is fixed to the bottom of the lower end of the elastic structure, and bolts are connected on both sides of the outer wall of the bottom plate, a sealing ring is fitted around the inner wall of the fixing plate, and a clamping structure is distributed on the bottom of the lower end of the sealing ring.

[0031] Furthermore, the spring device is located at a central position inside the tension release mechanism and directly contacts the traction rope.

[0032] Furthermore, there is at least one fastener.

[0033] Furthermore, the fastener includes a threaded adjustment rod and a fastening nut, and the position of the fastening nut is changed by rotating the threaded adjustment rod.

[0034] The fasteners mainly include adjustment rods, fastening nuts and positioning pins. The adjustment rod is a metal rod with external threads, and the fastening nut has matching internal threads. The two adjust the traction force through spiral motion. The positioning pin is used to fix the position of the fastening nut to prevent displacement due to vibration during use. The fasteners are installed on the support frame of the tractor, and the specific position is close to the fixed end of the traction rope, which is convenient for directly adjusting the tension of the rope.

[0035] Furthermore, the crossbeam is provided with a plurality of fixing holes for adjusting the fixing position of the traction rope.

[0036] Furthermore, the friction plate is embedded in the tension release mechanism to form a friction contact surface with the traction rope.

[0037] The friction plate is arranged near the spring device. Specifically, the friction plate can be placed on one side of the spring device and directly contact the traction rope. In order to maximize the friction effect, the surface of the friction plate should have a certain degree of roughness, and at the same time, a wear-resistant material with a high friction coefficient, such as special rubber or composite material, should be used to ensure that stable friction can be provided under different traction conditions.

[0038] Furthermore, a buffer pad is provided on the traction rope, and the buffer pad is installed at the portion of the traction rope that contacts the neck, that is, the middle section of the traction rope, directly facing the neck area of ​​the user.

[0039] Furthermore, the fixing holes are arranged in a linear array along the length direction of the beam, and the hole spacing of the fixing holes is between 3 cm and 8 cm.

[0040] Furthermore, the friction plate is a flat rectangle or an ellipse, and the width and length of the friction plate are both greater than the width of the traction rope.

[0041] The friction plate is designed to be a flat rectangle or oval, and its width and length should be slightly larger than the width of the traction rope / belt to achieve full coverage and maximize the contact area. The thickness of the friction plate is determined according to the required friction force and the friction coefficient of the material, generally between 1mm and 5mm, to ensure sufficient strength and wear resistance, and to ensure that the complexity and weight of the mechanism are not excessively increased.

[0042] Compared with the prior art, the adjustable neck traction device provided by the utility model has the following beneficial effects:

[0043] Precise force control and progressive release: Through the integrated spring device and friction plate, the utility model achieves precise control and progressive release of traction. When the traction exceeds the preset threshold, the spring begins to compress and absorb the excess tension, while the friction plate further smoothes the tension release process by increasing friction, avoiding sudden changes in force and significantly reducing the risk of cervical spine injury;

[0044] Personalized treatment plan: The traction force adjustment device allows users to flexibly adjust the initial pulling force according to their own cervical spine condition and treatment needs, ensuring that the traction process is both safe and comfortable. This personalized adjustment capability enables the utility model to adapt to patients of different ages, different physiques and different stages of cervical spondylosis, improving the pertinence and effectiveness of treatment;

[0045] Enhanced treatment comfort: By optimizing the material, shape and contact mode of the traction rope / belt, the utility model significantly improves the comfort during treatment, reduces skin pressure and irritation, and increases patients' acceptance and compliance with long-term treatment;

[0046] Improve treatment effect and safety: The smooth tension release process helps maintain the cervical spine in an appropriate stretching state, promotes the recovery of the cervical disc and improves blood circulation, thereby improving the treatment effect. At the same time, the progressive tension release mechanism reduces the uncertainty and risk in the treatment process, making the treatment process safer and more reliable;

[0047] Structural synergy and stability: The synergy of the support frame, traction rope, progressive tension release mechanism and traction adjustment device not only ensures the overall stability of the device, but also realizes the precise transmission and control of force, thereby improving the accuracy of treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 This is an example diagram of an adjustable neck traction device;

[0050] Figure 2 for Figure 1 Enlarged view of part A;

[0051] Figure 3 This is an example diagram of a spring device of an adjustable neck traction device;

[0052] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0053] 10. Main body; 11. Support frame; 12. Traction rope; 13. Fixing hole; 20. Tension release mechanism; 21. Spring device; 22. Friction plate; 30. Traction force adjustment device. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0055] like Figure 1 , Figure 2 As shown, it is a first embodiment of an adjustable neck traction device provided by the utility model. In this embodiment, it includes a main body 10, and the main body 10 is provided with a support frame 11, a traction rope 12, a tension release mechanism 20 and a traction force adjustment device 30. The support frame 11 includes two parallel support rods and a crossbeam. The tension release mechanism 20 is installed on the top of the support frame 11, close to the side of the crossbeam. The tension release mechanism 20 is arranged at one end of the traction rope 12 and is connected to the traction force adjustment device 30. The traction force adjustment device 30 is located on one side of the support frame 11, opposite to the tension release mechanism 20. The tension release mechanism 20 includes a spring device 21 and a friction plate 22. The traction rope 12 passes under the crossbeam, and the two ends are respectively connected to the tension release mechanism 20 and the traction force adjustment device 30;

[0056] The traction force adjustment device 30 includes a fastener for adjusting the initial tension on the traction rope 12 .

[0057] At the top of the support frame, there is usually a headrest or neck support component that directly contacts the user's head or neck to provide support. The headrest is usually made of soft material such as memory foam or cloth-covered padding to increase comfort. The traction rope extends vertically downward from the center point of the support frame and is connected to a handle or lasso at the end for the user to grasp. The length of the rope should allow the user to perform various stretching movements in front of the device while maintaining a safe distance from the ground.

[0058] When using, the implementation process is:

[0059] Initial setting: The user sets the initial tension through the traction force adjustment device to ensure that the traction rope has appropriate pre-tension.

[0060] Traction Application: When the user initiates cervical traction, the traction force is transmitted through the traction rope to the progressive tension release mechanism.

[0061] Tension monitoring and regulation: When the traction force is detected to exceed the preset threshold, the spring device begins to compress and absorb the excess tension. At the same time, the friction plate further controls the rate of tension release by increasing friction.

[0062] Smooth release: Through the coordinated action of the spring device and the friction plate, the excess tension is released smoothly to avoid sudden impact on the user's neck and ensure a safe and comfortable traction process.

[0063] Among them, in the above technical scheme, the spring device 21 includes a spring, a spring guide, a compression device and a preload mechanism. The spring guide is a cylindrical sleeve, the spring is installed inside the spring guide, and the compression device is composed of a plurality of screws and nuts. One end of the spring is fixed on one end of the spring guide, and the other end is connected to the compression device, which is indirectly connected through the screw and the nut.

[0064] The compression ratio of the spring device 21 is positively correlated with the increase in traction force.

[0065] The compression ratio of a spring arrangement is positively correlated with the increase in traction, a function achieved by the physical properties and design of the spring. In spring mechanics, the degree of compression of a spring (i.e., the amount of compression) and the force applied to it (i.e., the traction) follow Hooke's Law, which states that within the elastic limit, the amount of extension of a spring is proportional to the external force acting on it.

[0066] This means that when the external force increases, the amount of compression in the spring increases, and vice versa. The spring constant is a constant that is fixed for a given spring, so the amount of compression in the spring is proportional to the external force.

[0067] When designing a progressive tension release mechanism, the compression ratio of the spring device is positively correlated with the increase in traction, which can be achieved as follows:

[0068] Spring selection: Select a spring with the appropriate spring rate to ensure that the spring can provide a linear or near-linear force-displacement response within the predetermined traction range. This usually involves the selection of spring material, wire diameter, number of turns and diameter design.

[0069] Spring pre-compression: When there is no external force acting on the spring, it may be in a natural state or in a pre-compressed state. Pre-compression increases the effective working range of the spring, ensuring response at lower traction forces.

[0070] Use of springs in series or parallel: In some designs, multiple springs may be used in series or parallel to achieve specific compression characteristics. Springs in series increase the total stiffness of the system, while springs in parallel can withstand greater forces at the same compression, which allows the design of more complex force-displacement characteristics that better meet the requirements of progressive tension release.

[0071] Furthermore, in the above technical solution, the spring device 21 is located at the center of the tension release mechanism 20 and directly contacts the traction rope 12 .

[0072] Furthermore, in the above technical solution, there is at least one fastener.

[0073] Furthermore, in the above technical solution, the fastener includes a threaded adjustment rod and a fastening nut, and the position of the fastening nut is changed by rotating the threaded adjustment rod.

[0074] Furthermore, in the above technical solution, the crossbeam is provided with a plurality of fixing holes 13 for adjusting the fixing position of the traction rope 12 .

[0075] When in use, when the spring device is activated, the friction plate further slows down the speed of tension release through friction with the traction rope, ensuring a smoother tension release process. The position design of the friction plate enables it to effectively control excessive force without affecting the normal traction transmission.

[0076] like Figure 3 As shown, further, in the above technical solution, the friction plate 22 is embedded in the tension release mechanism 20 to form a friction contact surface with the traction rope 12.

[0077] Connection with the traction rope: The friction plate is in contact with the traction rope by mechanical clamping, ensuring that sufficient friction can be generated between the two under the action of traction. In order to facilitate the adjustment of the friction force, the clamping force of the friction plate can be fine-tuned by an external knob or similar device, so that the friction force can be adjusted as needed, thereby controlling the speed of the release of the pulling force.

[0078] Connection with spring device: The friction plate is usually adjacent to the spring device. The compression and release of the spring directly affects the contact pressure between the friction plate and the traction rope. In the design, the end of the spring device can directly push the friction plate to make it close to the traction rope. When the spring is compressed, the thrust on the friction plate increases, thereby increasing the friction between the traction rope and the friction plate. Conversely, when the spring is released, the friction decreases, allowing the traction rope to be released at a more gentle speed.

[0079] Furthermore, in the above technical solution, a buffer pad is provided on the traction rope 12, and the buffer pad is installed at the part of the traction rope 12 that contacts the neck, that is, the middle section of the traction rope 12, directly facing the neck area of ​​the user.

[0080] Furthermore, in the above technical solution, the fixing holes 13 are arranged in a linear array along the length direction of the crossbeam, and the hole spacing of the fixing holes 13 is between 3 cm and 8 cm.

[0081] Furthermore, in the above technical solution, the friction plate 22 is a flat rectangular or oval shape, and the width and length of the friction plate 22 are both greater than the width of the traction rope 12 .

[0082] Specifically, the principle of the utility model is:

[0083] Principle of spring device: Based on Hooke's Law, the spring device of the utility model is designed so that when the traction force exceeds the preset threshold, the spring begins to compress and absorb the excess tension. As the traction force increases, the compression amount of the spring increases accordingly, smoothly controlling the rate of tension release and ensuring the gradualness and controllability of the tension change;

[0084] Friction plate working mechanism: The friction plate forms contact with the traction rope. By adjusting the contact pressure between the friction plate and the rope, the friction force can be adjusted, and the speed of tension release can be further controlled. The friction force of the friction plate can be fine-tuned through an external adjustment mechanism to adapt to different traction needs and treatment stages;

[0085] Structural synergy and precise force control: The support frame provides a stable foundation, the traction rope acts as a force transmission medium, and the progressive tension release mechanism is responsible for controlling and regulating the release of tension. The traction adjustment device allows users to adjust the initial tension according to personal needs, ensuring the safety, comfort and effectiveness of the traction process;

[0086] Implementation process and operation mechanism: The user first sets the initial tension through the traction force adjustment device to ensure that the traction rope has appropriate pre-tension. When the user starts to traction the neck, the traction force is transmitted to the progressive tension release mechanism through the traction rope. When it is detected that the traction force exceeds the preset threshold, the spring device begins to compress and absorb the excess tension. At the same time, the friction plate further controls the rate of tension release by increasing friction, ensuring that the excess tension is released smoothly, avoiding sudden impact on the user's neck, and ensuring a safe and comfortable traction process.

Claims

1. An adjustable neck traction device, characterized in that: The invention comprises a main body (10), wherein the main body (10) is provided with a supporting frame (11), a traction rope (12), a tension release mechanism (20) and a traction force adjustment device (30), wherein the supporting frame (11) comprises two parallel supporting rods and a cross beam, wherein the tension release mechanism (20) is installed at the top of the supporting frame (11) and close to one side of the cross beam, wherein the tension release mechanism (20) is arranged at one end of the traction rope (12) and connected to the traction force adjustment device (30), wherein the traction force adjustment device (30) is located at one side of the supporting frame (11) and opposite to the tension release mechanism (20), wherein the tension release mechanism (20) comprises a spring device (21) and a friction plate (22), wherein the traction rope (12) passes under the cross beam, and wherein the two ends are respectively connected to the tension release mechanism (20) and the traction force adjustment device (30); The traction force adjustment device (30) comprises a fastener for adjusting the initial tension on the traction rope (12).

2. The adjustable neck traction device according to claim 1, characterized in that: The spring device (21) comprises a spring, a spring guide, a compression device and a pre-tightening mechanism, wherein the spring guide is a cylindrical sleeve, the spring is installed inside the spring guide, the compression device is composed of a plurality of screws and nuts, one end of the spring is fixed to one end of the spring guide, and the other end is connected to the compression device, and is indirectly connected via the screw and nut. The compression ratio of the spring device (21) is positively correlated with the increase in traction force.

3. The adjustable neck traction device according to claim 2, characterized in that: The spring device (21) is located at a central position inside the tension release mechanism (20) and is in direct contact with the traction rope (12).

4. The adjustable neck traction device according to claim 3, characterized in that: The number of the fastener is at least one.

5. The adjustable neck traction device according to claim 4, characterized in that: The fastener comprises a threaded adjustment rod and a fastening nut, and the position of the fastening nut is changed by rotating the threaded adjustment rod.

6. The adjustable neck traction device according to claim 5, characterized in that: The crossbeam is provided with a plurality of fixing holes (13) for adjusting the fixing position of the traction rope (12).

7. The adjustable neck traction device according to claim 6, characterized in that: The friction plate (22) is embedded in the tension release mechanism (20) and forms a friction contact surface with the traction rope (12).

8. The adjustable neck traction device according to claim 7, characterized in that: The traction rope (12) is provided with a buffer pad, which is installed at the part of the traction rope (12) that contacts the neck, that is, the middle section of the traction rope (12), directly facing the neck area of ​​the user.

9. The adjustable neck traction device according to claim 8, characterized in that: The fixing holes (13) are arranged in a linear array along the length direction of the crossbeam, and the hole spacing of the fixing holes (13) is between 3 cm and 8 cm.

10. The adjustable neck traction device according to claim 9, characterized in that: The friction plate (22) is in the shape of a flat rectangle or an ellipse, and the width and length of the friction plate (22) are both greater than the width of the traction rope (12).

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