Cervical vertebra tractor

Abstract

A cervical vertebra tractor relates to the technical field of cervical vertebra correction and comprises a supporting assembly, a seat assembly, a backrest assembly, a bearing assembly and a pedal type lock catch assembly. The supporting assembly is movably mounted below the seat assembly, and the supporting assembly has an unfolded state and a folded state which are switched relative to the seat assembly; the seat assembly is rotatably connected with the backrest assembly, and when the supporting assembly is in the unfolded state, the backrest assembly is detachably clamped with the supporting assembly, so that the backrest assembly is unfolded relative to the seat assembly; the bearing assembly is connected with the backrest assembly in a foldable mode. The pedal type lock catch assembly comprises a clamping column and a pedal type linkage unit, the clamping column is installed on the backrest assembly, and the pedal type linkage unit is installed on the supporting assembly. The tractor is simple in structure, convenient to fold and unfold, small in size after being folded, and beneficial to storage and carrying.

Description

Technical Field

[0001] The present invention relates to the technical field of cervical vertebra correction, in particular to a cervical vertebra traction device. Background Art Cervical spondylosis is a syndrome characterized by a range of clinical symptoms caused by degenerative cervical disc disease and cervical bone hyperplasia. Occupational factors are a contributing factor, particularly for those who work long hours at a desk, such as programmers, writers, and teachers. Furthermore, high workplace pressure and overtime put even greater strain on the cervical spine. The widespread use of smartphones has led people to look down at their devices during their leisure time, further increasing the strain on the cervical spine and increasing the risk of cervical spondylosis. The fundamental principle of cervical spondylosis treatment is to restore the cervical spine to its original normal, stable biomechanical structure, primarily restoring its normal physiological curvature. Therefore, reducing head pressure on the cervical spine is one possible treatment approach. Cervical traction devices are a common device currently used to treat cervical spondylosis. However, these devices often have issues such as bulky packaging, large space requirements, and the need for tools to disassemble them. Summary of the Invention

[0002] The purpose of the present invention includes, for example, providing a cervical traction device that can reduce the difficulty of folding operation, and is very convenient and efficient in opening and folding, saving time and effort, and having high efficiency; at the same time, after folding, the structure is compact and the volume is small, which is easy to store and carry.

[0003] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a cervical traction device, comprising a support assembly, a seat assembly, a backrest assembly, a support assembly, and a pedal-type locking assembly, wherein: The support assembly is movably mounted below the seat assembly, and the support assembly has a mutually switchable unfolded state and a folded state relative to the seat assembly; the seat assembly is rotatably connected to the backrest assembly, and when the support assembly is in the unfolded state, the backrest assembly and the support assembly are detachably engaged to allow the backrest assembly to be unfolded relative to the seat assembly; the support assembly is foldably connected to the backrest assembly; The foot-operated locking assembly includes a clamping column and a foot-operated linkage unit, the clamping column is installed on the backrest assembly, and the foot-operated linkage unit is installed on the support assembly. The foot-operated linkage unit has a working position and a non-working position that can be switched with each other. When in the working position, the foot-operated linkage unit is clamped with the clamping column to keep the support assembly in the expanded state and limit the rotation and folding of the backrest assembly relative to the seat assembly; when the foot-operated linkage unit is stepped on to switch it from the working position to the non-working position, the support assembly can switch from the expanded state to the folded state, and drive the seat assembly to rotate and fold relative to the backrest assembly through the support assembly.

[0004] In an optional embodiment, the support assembly includes a front support frame, a rear support frame and a linkage frame, the front support frame is rotatably connected to the seat assembly, the rear support frame is rotatably connected to the seat assembly, and the linkage frame is rotatably connected to the front support frame, the rear support frame and the backrest assembly at the same time; The foot-operated linkage unit is mounted on the rear support frame; when the support assembly is in an unfolded state, the backrest assembly is engaged with the rear support frame.

[0005] In an optional embodiment, the linkage frame includes a first link, a second link and a connecting shaft, the connecting shaft is installed on the backrest assembly, one end of the first link is rotatably connected to the front support frame, one end of the second link is rotatably connected to the rear support frame, and the other end of the first link and the other end of the second link are both rotatably connected to the connecting shaft.

[0006] In an optional embodiment, the foot-operated linkage unit includes a foot pedal, a clamping plate, and an elastic reset member, wherein both the foot pedal and the clamping plate are rotatably mounted on the rear support frame, and the foot pedal is transmission-connected to the clamping plate; the elastic reset member is mounted on the foot pedal or the clamping plate; When in the working position, the clamping plate is engaged with the clamping column; when in the non-working position, the clamping plate is separated from the clamping column; the elastic reset member is used to make the clamping plate have a rotation tendency to engage with the clamping column.

[0007] In an optional embodiment, the foot pedal includes a pressing plate, a connecting plate and a transmission pin; the pressing plate is connected to the connecting plate, and the transmission pin is mounted on the connecting plate; the connecting plate is rotatably connected to the rear support frame; The clamping plate is provided with a strip-shaped guide slot and a limit slot, the transmission pin is inserted into the strip-shaped guide slot, and the transmission pin is movably engaged with the strip-shaped guide slot; the limit slot is used to detachably engage with the clamping column; When the foot pedal rotates along a first direction, the transmission pin drives the clamping plate to rotate along a second direction opposite to the first direction, and the transmission pin slides relative to the strip guide slot in the length direction of the strip guide slot.

[0008] In an optional embodiment, the backrest assembly includes a backrest frame, a backrest body and an armrest; the seat assembly is rotatably mounted on the backrest frame, the backrest body is fixed to the backrest frame and is located on the same side as the seat assembly; the armrest is detachably mounted on the backrest body; the support assembly is mounted on the backrest frame; When the support assembly is in the unfolded state, the backrest frame is snap-fitted with the support assembly.

[0009] In an optional embodiment, the cervical traction device further comprises a telescopic assembly, which is connected to both the backrest frame and the supporting assembly, and is used to drive the supporting assembly to slide relative to the backrest frame to adjust the height of the supporting assembly.

[0010] In an optional embodiment, the supporting assembly includes a supporting rod and a neck support, the supporting rod is provided with at least one folding joint, the supporting rod is connected to the backrest assembly; the neck support is connected to the supporting rod.

[0011] In an optional embodiment, the folding joint includes a first rod, a second rod and an elastic body, the first rod and the second rod are detachably plugged into each other, one end of the elastic body is connected to the first rod, and the other end of the elastic body is connected to the second rod, and the elastic body is used to make the first rod and the second rod have a movement tendency towards each other.

[0012] In an optional embodiment, the first rod is provided with a first concave-convex structure, and the second rod is provided with a second concave-convex structure. When the first rod is plugged into the second rod, the first concave-convex structure and the second concave-convex structure are snap-fitted to limit the relative rotation of the first concave-convex structure and the second concave-convex structure.

[0013] The beneficial effects of the embodiments of the present invention include, for example: In summary, the cervical traction device provided by this embodiment, during normal use, has the support assembly in an expanded state, the foot-operated locking assembly in a working position, and the seat assembly in an open state relative to the backrest assembly. This allows the user to sit on the seat assembly with their back resting against the backrest assembly. By adjusting the position of the support assembly, the support assembly can lift the user's neck, thereby reducing neck fatigue and facilitating cervical vertebra recovery. Due to the locking function of the foot-operated locking assembly, the support assembly is prevented from switching from an expanded state to a folded state. At the same time, the backrest assembly is clipped onto the support assembly, and the support assembly, seat assembly, and backrest assembly are all in a stable working state, making them safe to use. When use is complete, the backrest assembly can be held by hand, and the foot-operated linkage unit can be stepped on with one foot to switch it from the working position to the non-working position. The foot-operated linkage unit is separated from the clip-on column, and the support assembly, seat assembly, and backrest assembly can be folded together in a coordinated manner, making the cervical traction device compact and small in size, making it easy to store and carry. Since users unlock the door by stepping on the foot-operated linkage unit with one foot, users, especially the elderly, basically do not need to bend over or the bending angle is small, which reduces the burden on the waist and makes the operation quick and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 is a schematic diagram of the cervical traction device of this embodiment from a first perspective; Figure 2 is a schematic diagram of the cervical traction device of this embodiment from a second viewing angle; Figure 3 is a schematic diagram of the cervical traction device of this embodiment from a third perspective; Figure 4 for Figure 3 A local enlarged schematic diagram in FIG. Figure 5 is a schematic diagram of the cervical traction device of this embodiment in a first folded state; Figure 6 is a schematic diagram of the cervical traction device of this embodiment in a second folded state; Figure 7 Schematic diagram of the foot-operated locking unit of this embodiment; Figure 8 is a schematic diagram of the folding joint of this embodiment; Figure 9 Schematic cross-sectional view of the folding joint of this embodiment.

[0016] icon: 100-Support assembly; 110-Front support frame; 111-Front support foot; 112-Front crossbar; 120-Rear support frame; 121-Rear support foot; 122-Rear crossbar; 130-Linkage frame; 131-First connecting rod; 132-Second connecting rod; 133-Connecting shaft; 200-Seat assembly; 210-Mounting frame; 220-Seat plate; 230-Mounting piece; 300-Backrest assembly; 310-Backrest frame; 311-Positioning slot; 320-Backrest body; 330-Armrest; 400-Support assembly; 410-Support rod; 411-First rod; 412-Second rod; 4121-Third rod; 413-Elastic Body; 414-first limiting cylinder; 415-second limiting cylinder; 416-first concave-convex structure; 417-second concave-convex structure; 418-first seam; 419-second seam; 420-neck support; 500-foot-operated locking assembly; 510-clamping column; 520-foot-operated linkage unit; 521-foot pedal; 5211-pressing plate; 5212-connecting plate; 5213-transmission pin; 522-clamping plate; 5221-strip guide groove; 5222-limiting clamping groove; 5223-guide slope; 523-first axis; 524-second axis; 600-telescopic assembly; 610-driver; 620-sleeve. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0020] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0022] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0023] Example Please refer to Figures 1-9 This embodiment provides a cervical traction device, which includes a support assembly 100, a seat assembly 200, a backrest assembly 300, a supporting assembly 400 and a foot-operated locking assembly 500.

[0024] The support assembly 100 is movably mounted below the seat assembly 200. The support assembly 100 has a mutually switchable deployed state and a folded state relative to the seat assembly 200. The seat assembly 200 is rotatably connected to the backrest assembly 300. When the support assembly 100 is in the deployed state, the backrest assembly 300 is detachably engaged with the support assembly 100 so that the backrest assembly 300 is deployed relative to the seat assembly 200. The support assembly 400 is foldably connected to the backrest assembly 300. The foot-operated locking assembly 500 includes a clamping column 510 and a foot-operated linkage unit 520. The clamping column 510 is installed on the backrest assembly 300, and the foot-operated linkage unit 520 is installed on the support assembly 100. The foot-operated linkage unit 520 has a working position and a non-working position that can be switched between each other. When in the working position, the foot-operated linkage unit 520 is clamped with the clamping column 510 to keep the support assembly 100 in the expanded state and limit the backrest assembly 300 from rotating and folding relative to the seat assembly 200; when the foot-operated linkage unit 520 is stepped on to switch it from the working position to the non-working position, the support assembly 100 can switch from the expanded state to the folded state, and drive the seat assembly 200 to rotate and fold relative to the backrest assembly 300 through the support assembly 100.

[0025] As mentioned above, the cervical traction device provided in this embodiment works as follows: During normal use, the support assembly 100 is in the deployed state, the foot-operated locking assembly 500 is in the operating position, and the seat assembly 200 is in the open state relative to the backrest assembly 300. This allows the user to sit on the seat assembly 200 with their back resting against the backrest assembly 300. By adjusting the position of the support assembly 400, the support assembly 400 can lift the user's neck, thereby reducing neck fatigue and facilitating cervical spine recovery. The locking function of the foot-operated locking assembly 500 prevents the support assembly 100 from switching from the deployed state to the folded state. At the same time, the backrest assembly 300 is locked to the support assembly 100. The support assembly 100, seat assembly 200, and backrest assembly 300 are all in a stable operating state, ensuring safe use. When use is complete, the user can hold the backrest assembly 300 and then step on the foot-operated linkage unit 520 with one foot to switch it from the working position to the non-working position. The foot-operated linkage unit 520 separates from the clamping column 510, and the support assembly 100, seat assembly 200, and backrest assembly 300 can be folded together, making the cervical traction device compact and small in size, making it easy to store and carry. Because the user only needs to step on the foot-operated linkage unit 520 to unlock the device, the user, especially the elderly, basically does not need to bend over or bends at a small angle, reducing the burden on the waist and making operation quick and flexible.

[0026] The following embodiments illustrate the details of the cervical traction device of the present application by way of examples.

[0027] Please refer to Figures 1-9 In this embodiment, optionally, the cervical traction device includes a support assembly 100, a seat assembly 200, a backrest assembly 300, a support assembly 400, a foot-operated locking assembly 500, and a telescopic assembly 600. The support assembly 100 and the backrest assembly 300 are both mounted on the seat assembly 200, the support assembly 400 is slidably mounted on the backrest assembly 300, and the telescopic assembly 600 is simultaneously connected to the backrest assembly 300 and the support assembly 400. The telescopic assembly 600 can drive the support assembly 400 to rise and fall relative to the backrest assembly 300, thereby adjusting the height. The foot-operated locking assembly 500 can lock or unlock the support assembly 100 and the backrest assembly 300. When in the locked state, the support assembly 100, the seat assembly 200, and the backrest assembly 300 are all in the expanded position, and the traction device can be used normally at this time. When in the unlocked state, the support assembly 100 can be folded. Both the support assembly 100 and the backrest assembly 300 can be folded relative to the seat assembly 200. The folded retractor is compact and convenient for storage and portability. In addition, the foot-operated lock assembly 500 can be unlocked by stepping on it with one foot, making it easy to operate.

[0028] In this embodiment, the support assembly 100 optionally includes a front support frame 110, a rear support frame 120, and a linkage frame 130. The front support frame 110 is rotatably connected to the seat assembly 200, the rear support frame 120 is rotatably connected to the seat assembly 200, and the linkage frame 130 is rotatably connected to the front support frame 110, the rear support frame 120, and the backrest assembly 300. When folding, the front support frame 110 and the rear support frame 120 can rotate relative to each other and both can be folded close to the seat assembly 200.

[0029] Optionally, the front support frame 110 includes two front support legs 111 and a front crossbar 112 connecting the two front support legs 111. The two front support legs 111 are rotatably connected to the seat assembly 200 and are located on both sides of the width of the seat assembly 200. A non-slip pad is installed on the bottom of each front support leg 111. The rear support frame 120 includes two rear support legs 121 and a rear crossbar 122 connecting the two rear support legs 121. The two rear support legs 121 are rotatably connected to the seat assembly 200 and are located on both sides of the width of the seat assembly 200. A non-slip pad is installed on the bottom of each rear support leg 121. The axes of the front and rear support legs 111, 121, and their rotatable connection to the seat assembly 200 coincide. This means that the front support legs 111 and the seat assembly 200 are rotatably connected about a predetermined axis, while the rear support legs 121 are also rotatably connected about a predetermined axis. This reduces interference and facilitates processing and assembly. Furthermore, the two front support legs 111, respectively, mate with the two rear support legs 121, forming an angled relationship therebetween. When both the front and rear support legs 111, 121 are supported on the ground, a triangular support structure is formed, providing high stability.

[0030] Furthermore, a positioning protrusion is provided on the upper surface of each rear supporting leg 121. The positioning protrusion can be engaged with the backrest assembly 300, thereby improving the stability of the backrest assembly 300 and the rear supporting leg 121.

[0031] Optionally, two linkage frames 130 are provided, and the two linkage frames 130 respectively cooperate with the two sets of front support legs 111 and rear support legs 121, that is, the front support legs 111 and the rear support legs 121 located on the same side cooperate with one linkage frame 130. The linkage frame 130 includes a first connecting rod 131, a second connecting rod 132, and a connecting shaft 133. The connecting shaft 133 is mounted on the backrest frame 310 of the backrest assembly 300. One end of the first connecting rod 131 is rotatably connected to the corresponding front support leg 111, one end of the second connecting rod 132 is rotatably connected to the corresponding rear support leg 121, and the other end of the first connecting rod 131 and the other end of the second connecting rod 132 are both rotatably connected to the connecting shaft 133. With such a design, when the foot-operated linkage unit 520 is in the non-working position, force is applied to the backrest assembly 300, and the backrest frame 310 rotates and folds relative to the mounting frame 210. At the same time, the front support legs and the rear support legs are driven to rotate and fold relative to the mounting frame 210 through the linkage frame 130, so that the backrest frame 310 is folded above the mounting frame 210, and the front support frame 110 and the rear support frame 120 are folded below the mounting frame 210. The overall structure is compact and the volume is small.

[0032] In this embodiment, seat assembly 200 optionally includes a mounting frame 210, a seat plate 220, and two mounting tabs 230. The seat plate 220 is removably mounted above the mounting frame 210. The mounting frame 210 may be a U-shaped, integral structural member for ease of processing. The mounting tabs 230 are each secured to the mounting frame 210 and located on either side of the mounting frame 210 in a widthwise direction that aligns with the width of the seat assembly 200. Each mounting tab 230 may have a rotating shaft formed thereon, and the front support leg 111 and the rear support leg 121 located on the same side are both rotatably connected to the rotating shaft on the same mounting tab 230.

[0033] In this embodiment, the backrest assembly 300 optionally includes a backrest frame 310, a backrest body 320, and two armrests 330. The backrest frame 310 is rotatably connected to the mounting frame 210 of the seat assembly 200. Two positioning slots 311 are provided on the underside of the backrest frame 310. The two positioning slots 311 can respectively engage with the positioning protrusions on the two rear support legs 121, thereby improving the stability of the retractor after deployment. The backrest body 320 is detachably mounted on the backrest frame 310, with the backrest body 320 and the seat plate 220 located on the same side of the backrest frame 310. The two armrests 330 are both detachably mounted on the backrest body 320, with the two armrests 330 located on opposite sides of the backrest body 320. After use, the two armrests 330 can be pulled out and removed from the backrest body 320, further reducing the overall size. Furthermore, the backrest body 320 can be provided with multiple insertion holes, each at a different height. This allows the armrest 330 to be inserted into the insertion hole at the corresponding height as needed, thereby adjusting the height of the armrest 330 to accommodate users of different heights and providing flexibility and convenience. When the backrest assembly 300 is folded relative to the seat assembly 200, the seat plate 220 and the backrest body 320 can be attached to each other. Obviously, the insertion holes are located on the rear side of the backrest body 320, that is, away from the seat plate 220. The armrest 330 is installed in the insertion holes without interfering with the user's back resting against the front side of the backrest body 320.

[0034] Please refer to Figure 1 、 Figure 8-Figure 9 In this embodiment, optionally, the support assembly 400 includes a support rod 410 and a neck support 420. The support rod 410 is slidably matched with the backrest frame 310, and the neck support 420 is mounted on the support rod 410. By sliding the support rod, the height of the neck support 420 can be adjusted. It should be understood that the support rod 410 can be set to a foldable structure, so that after folding the support assembly 100, the backrest assembly 300 and the seat assembly 200, the support rod 410 can be folded and shortened, which is convenient for storage and transportation. At the same time, the neck support 420 and the support rod 410 can be set to be detachably connected. After use, the neck support 420 can be removed from the support rod 410 and can be placed independently, which is not easy to be lost or crushed and has a long service life.

[0035] Optionally, the support rod 410 is provided with at least one folding joint, and the support rod 410 can be folded or opened at the folding joint. When folded, the length of the support rod 410 is short. During normal use, the folding joint is opened, and the support rod 410 can play the role of normally supporting the neck support 420.

[0036] For example, in this embodiment, the supporting rod 410 includes two folding joints, and the structure of each folding joint can be set to be the same. In order to avoid repeated descriptions in this embodiment, one folding joint is used as an example for description. Among them, the folding joint includes a first rod 411, a second rod 412, an elastic body 413, a first limiting cylinder 414 and a second limiting cylinder 415. One end of the first rod 411 is provided with a first concave-convex structure 416, and one end of the second rod 412 is provided with a second concave-convex structure 417. The first limiting cylinder 414 is set as a two-step shaft structure, and the outer peripheral surface of the first limiting cylinder 414 is formed with an annular step surface. The end of the first limiting cylinder 414 with a larger outer diameter is inserted and fixed in the first rod 411, and the second limiting cylinder 415 is inserted and fixed in the second rod 412. During assembly, the end of the first limiting tube 414 with a smaller outer diameter can be inserted into the second limiting tube 415. The end surface of the second limiting tube 415 contacts the annular step surface to form an annular first joint 418. The end surfaces of the first rod 411 and the second rod 412 contact each other to form an annular second joint 419. The first joint 418 and the second joint 419 are spaced apart in the axial direction of the first rod 411 or the second rod 412, that is, the first joint 418 and the second joint 419 are staggered. The outer circumference of the second limiting tube 415 can cover the first joint 418, thereby improving the sealing of the folding joint. At the same time, the first concave-convex structure 416 and the second concave-convex structure 417 are plugged in and matched to limit the relative rotation of the first rod 411 and the second rod 412, thereby improving the stability of the support rod 410.

[0037] It should be understood that the first limiting cylinder 414 and the second limiting cylinder 415 can both be configured as rubber parts or silicone parts, and elastic deformation can be generated at the contact position, thereby improving the sealing performance.

[0038] Meanwhile, the elastic body 413 can be configured as a rubber band or the like, and is disposed within the first limiting cylinder 414. One end of the elastic body 413 is connected to the end of the first limiting cylinder 414, and the other end is connected to the end of the second limiting cylinder 415. When the elastic body 413 is stretched, it exerts a contracting elastic force, causing the first rod 411 and the second rod 412 to tend to approach each other.

[0039] It should be understood that when the supporting rod 410 needs to be folded, force is applied to the first rod 411 and the second rod 412 to separate the two, that is, the first concave-convex structure 416 and the second concave-convex structure 417 are separated, the first limiting cylinder 414 and the second limiting cylinder 415 are separated, and the elastic body 413 is further stretched, and the elastic body 413 can be folded, thereby realizing the folding of the first rod 411 and the second rod 412.

[0040] It should be noted that the supporting rod 410 also includes a third rod 4121, which is connected to the second rod 412. The connection between the two can form a folding joint. The supporting rod 410 is a three-section folding structure and is short in length when folded.

[0041] In this embodiment, the telescopic assembly 600 optionally includes a driver 610 and a sleeve 620. The sleeve 620 is fixedly connected to the backrest frame 310. The driver 610 can be a pneumatic cylinder, a hydraulic cylinder, or an electric push rod. The fixed portion of the driver 610 is mounted on the sleeve 620. The telescopic portion of the driver 610 is connected to the third rod 4121, and the third rod 4121 is slidably inserted into the sleeve 620. When the height of the neck support 420 on the support rod 410 needs to be adjusted, the driver 610 is activated, and the driver 610 can drive the support rod 410 to slide relative to the sleeve 620, thereby achieving height adjustment.

[0042] It should be understood that the driver 610 can be remotely controlled by a remote controller, which can be connected to the driver 610 via a power cord, or the two can be connected via wireless communication such as Bluetooth, or the driver 610 can be directly controlled by a smart device such as a mobile phone, which is convenient to operate.

[0043] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 7 In this embodiment, the foot-operated locking assembly 500 optionally includes a clamping post 510 and a foot-operated linkage unit 520. The clamping post 510 is mounted on the backrest frame 310 of the backrest assembly 300, and the foot-operated linkage unit 520 is mounted on a rear support foot 121 of the support assembly 100. The foot-operated linkage unit 520 has a mutually switchable working position and a non-working position. In the working position, the foot-operated linkage unit 520 engages with the clamping post 510 to maintain the front support frame 110 and the rear support frame 120 in the deployed state and to restrict the backrest frame 310 of the backrest assembly 300 from rotating and folding relative to the mounting frame 210 of the seat assembly 200. When the foot-operated linkage unit 520 is stepped on to switch from the working position to the non-working position, the support assembly 100 can switch from the deployed state to the folded state, and the mounting frame 210 can be driven to rotate and fold relative to the backrest frame 310 through the support assembly 100.

[0044] Optionally, the foot-operated linkage unit 520 includes a foot pedal 521, a clamping plate 522, an elastic reset member (not shown), a first shaft 523, and a second shaft 524. The foot pedal 521 is rotatably connected to the rear support foot 121 via the first shaft 523, the clamping plate 522 is rotatably connected to the rear support frame 120 via the second shaft 524, and the foot pedal 521 is transmission-connected to the clamping plate 522. The elastic reset member is mounted on the foot pedal 521 or the clamping plate 522. When in the working position, the clamping plate 522 is clamped and engaged with the clamping column 510; when in the non-working position, the clamping plate 522 is separated from the clamping column 510. The elastic reset member is used to give the clamping plate 522 a rotational tendency to clamp and engage with the clamping column 510. The elastic reset member can be configured as a torsion spring, etc., which has a simple structure and is easy to install.

[0045] Furthermore, the foot pedal 521 includes a pressing plate body 5211, a connecting plate body 5212 and a transmission pin 5213. The pressing plate body 5211 is connected to the connecting plate body 5212, and the two can be set as an integrated structure with high structural strength and not easily deformed or damaged during use. The transmission pin 5213 is installed on the connecting plate body 5212, and the connecting plate body 5212 is rotatably connected to a rear support foot 121 of the rear support frame 120. The clamping plate 522 is provided with a strip guide groove 5221, a limit clamping groove 5222 and a guide inclined surface 5223, and the transmission pin 5213 is inserted into the strip guide groove 5221, and the transmission pin 5213 and the strip guide groove 5221 are movably matched. The limiting slot 5222 is used to detachably engage with the clamping column 510, and the guiding inclined surface 5223 is used to contact the clamping column 510 and guide the clamping column 510 into the limiting slot 5222. When the foot pedal 521 rotates in a first direction, the transmission pin 5213 drives the clamping plate 522 to rotate in a second direction opposite to the first direction, and the transmission pin 5213 slides relative to the strip guide slot 5221 in the length direction of the strip guide slot 5221. For example, referring to Figure 4From the perspective of this figure, when the foot pedal 521 rotates clockwise around the first axis 523, the transmission pin 5213 slides to the right in the strip guide groove 5221, and drives the clamping plate 522 to rotate counterclockwise around the second axis 524, thereby causing the limiting clamping groove 5222 of the clamping plate 522 to disengage from the clamping column 510, achieving unlocking, and the tractor can be folded subsequently. When the folded tractor is unfolded, the backrest assembly 300 can be lifted. Under the action of gravity, the front support legs 111 and the rear support legs 121 are rotated downward and opened. Subsequently, the front support legs 111 and the rear support legs 121 can be supported on the ground. A downward force is applied to the backrest assembly 300, and the guide slope 5223 of the clamping plate 522 moves to the left side of the clamping column 510 and contacts the clamping column 510. As the clamping column 510 continues to move downward, it can press the guide slope 5223 to make the clamping plate 522 rotate counterclockwise. After the guide slope 5223 leaves the clamping column 510, under the elastic force of the elastic return member, the clamping plate 522 rotates clockwise again, and the limit slot 5222 is clamped into the clamping column 510 to achieve automatic locking. In this way, the folding and unfolding operations of the tractor are very convenient, the user only needs to bend down with a small range of motion, or even does not need to bend down at all, the labor intensity is low, and users, especially the elderly, are not likely to injure their waists when using it, making it safe and reliable.

[0046] When the locking plate 522 is unlocked, the locking plate 522 is locked and the locking plate 522 is in the locked position.

[0047] The cervical traction device provided in this embodiment uses a foot-operated method to unlock the support assembly 100, thereby facilitating the folding of the support assembly 100, the seat assembly 200, and the backrest assembly 300. The operation is convenient and quick, and the user can bend at a small angle or even not at all, which causes little damage to the waist and is less likely to cause falls due to excessive bending angles. It is safe and reliable to use. At the same time, the support rod 410 can also be folded, and the overall structure is compact and small in size, which is convenient for storage and carrying. When the support rod 410 is folded and unfolded, adjacent rods can be inserted or pulled together, which is very convenient to operate.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A cervical traction device, characterized in that: It comprises a support assembly (100), a seat assembly (200), a backrest assembly (300), a support assembly (400) and a pedal-type locking assembly (500), wherein: The support assembly (100) is movably mounted below the seat assembly (200), and the support assembly (100) has a mutually switchable unfolded state and folded state relative to the seat assembly (200); the seat assembly (200) is rotatably connected to the backrest assembly (300), and when the support assembly (100) is in the unfolded state, the backrest assembly (300) and the support assembly (100) are detachably engaged to enable the backrest assembly (300) to unfold relative to the seat assembly (200); the supporting assembly (400) is foldably connected to the backrest assembly (300); The foot-operated locking assembly (500) comprises a clamping column (510) and a foot-operated linkage unit (520), wherein the clamping column (510) is mounted on the backrest assembly (300), and the foot-operated linkage unit (520) is mounted on the support assembly (100), and the foot-operated linkage unit (520) has a mutually switchable working position and a non-working position. When in the working position, the foot-operated linkage unit (520) is clamped with the clamping column (510) to keep the support assembly (100) in the unfolded state and to restrict the backrest assembly (300) from rotating and folding relative to the seat assembly (200); when the foot-operated linkage unit (520) is stepped on to switch from the working position to the non-working position, the support assembly (100) can be switched from the unfolded state to the folded state, and the seat assembly (200) can be driven to rotate and fold relative to the backrest assembly (300) through the support assembly (100).

2. The cervical traction device according to claim 1, characterized in that: The support assembly (100) comprises a front support frame (110), a rear support frame (120) and a linkage frame (130), wherein the front support frame (110) is rotatably connected to the seat assembly (200), the rear support frame (120) is rotatably connected to the seat assembly (200), and the linkage frame (130) is rotatably connected to the front support frame (110), the rear support frame (120) and the backrest assembly (300); The pedal-type linkage unit (520) is mounted on the rear support frame (120); when the support assembly (100) is in an unfolded state, the backrest assembly (300) is engaged with the rear support frame (120).

3. The cervical traction device according to claim 2, characterized in that: The linkage frame (130) includes a first link (131), a second link (132) and a connecting shaft (133), wherein the connecting shaft (133) is mounted on the backrest assembly (300), one end of the first link (131) is rotatably connected to the front support frame (110), one end of the second link (132) is rotatably connected to the rear support frame (120), and the other end of the first link (131) and the other end of the second link (132) are both rotatably connected to the connecting shaft (133).

4. The cervical traction device according to claim 2, characterized in that: The pedal-type linkage unit (520) comprises a foot pedal (521), a clamping plate (522), and an elastic reset member. The foot pedal (521) and the clamping plate (522) are both rotatably mounted on the rear support frame (120). The foot pedal (521) is transmission-connected to the clamping plate (522). The elastic reset member is mounted on the foot pedal (521) or the clamping plate (522). When in the working position, the clamping plate (522) is clamped and matched with the clamping column (510); when in the non-working position, the clamping plate (522) is separated from the clamping column (510); the elastic reset member is used to enable the clamping plate (522) to have a rotational tendency to clamp and match with the clamping column (510).

5. The cervical traction device according to claim 4, characterized in that: The foot pedal (521) comprises a pressing plate (5211), a connecting plate (5212), and a transmission pin (5213); the pressing plate (5211) is connected to the connecting plate (5212), and the transmission pin (5213) is mounted on the connecting plate (5212); the connecting plate (5212) is rotatably connected to the rear support frame (120); The clamping plate (522) is provided with a strip-shaped guide slot (5221) and a limiting slot (5222); the transmission pin (5213) is inserted into the strip-shaped guide slot (5221); the transmission pin (5213) and the strip-shaped guide slot (5221) are movably engaged; the limiting slot (5222) is used for detachably engaging with the clamping column (510); When the foot pedal (521) rotates in a first direction, the transmission pin (5213) drives the clamping plate (522) to rotate in a second direction opposite to the first direction, and the transmission pin (5213) slides relative to the strip guide slot (5221) in the length direction of the strip guide slot (5221).

6. The cervical traction device according to any one of claims 1 to 5, characterized in that: The backrest assembly (300) comprises a backrest frame (310), a backrest body (320), and an armrest (330); the seat assembly (200) is rotatably mounted on the backrest frame (310); the backrest body (320) is fixed to the backrest frame (310) and is located on the same side as the seat assembly (200); the armrest (330) is detachably mounted on the backrest body (320); and the supporting assembly (400) is mounted on the backrest frame (310). When the support assembly (100) is in an unfolded state, the backrest frame (310) is engaged with the support assembly (100).

7. The cervical traction device according to claim 6, characterized in that: The cervical vertebra traction device further comprises a telescopic assembly (600), wherein the telescopic assembly (600) is connected to both the backrest frame (310) and the supporting assembly (400), and the telescopic assembly (600) is used to drive the supporting assembly (400) to slide relative to the backrest frame (310) to adjust the height of the supporting assembly (400).

8. The cervical traction device according to any one of claims 1 to 5, characterized in that: The supporting assembly (400) comprises a supporting rod (410) and a neck support (420); the supporting rod (410) is provided with at least one folding joint; the supporting rod (410) is connected to the backrest assembly (300); and the neck support (420) is connected to the supporting rod (410).

9. The cervical traction device according to claim 8, characterized in that: The folding joint comprises a first rod (411), a second rod (412) and an elastic body (413); the first rod (411) and the second rod (412) are detachably plugged into each other; one end of the elastic body (413) is connected to the first rod (411), and the other end of the elastic body (413) is connected to the second rod (412); the elastic body (413) is used to make the first rod (411) and the second rod (412) have a movement tendency to approach each other.

10. The cervical traction device according to claim 9, characterized in that: The first rod (411) is provided with a first concave-convex structure (416), and the second rod (412) is provided with a second concave-convex structure (417). When the first rod (411) and the second rod (412) are plugged into each other, the first concave-convex structure (416) and the second concave-convex structure (417) are engaged with each other to limit relative rotation of the first concave-convex structure (416) and the second concave-convex structure (417).

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