Cervical vertebra tractor

Abstract

The invention provides a cervical vertebra tractor, and relates to the technical field of medical rehabilitation instruments, the cervical vertebra tractor comprises a telescopic structure, a backrest structure, a seat plate structure and a rear foot structure, the telescopic structure is slidably connected with the backrest structure, and the telescopic structure comprises a traction belt used for being connected with the head and neck of a human body; the seat plate structure comprises a seat plate frame mechanism, a connecting mechanism and front legs, the seat plate frame mechanism is connected with the end, away from the telescopic structure, of the backrest structure, and the end, away from the backrest structure, of the seat plate frame mechanism is connected with the front legs through the connecting mechanism; the seat plate frame mechanism is used for being folded towards the backrest structure in a storage state; the rear leg structure is connected with one end, far away from the telescopic structure, of the backrest structure and is arranged on one side, far away from the seat plate structure, of the backrest structure. The technical problems that in the prior art, the force of each folding joint cannot be accurately fixed, so that the whole frame is loose and not compact enough, the proper height and force cannot be accurately adjusted, and carrying is not convenient are solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical rehabilitation equipment, and in particular to a cervical vertebra traction device. Background Art

[0002] Cervical spondylosis is a syndrome of a series of clinical symptoms caused by degenerative lesions of the cervical intervertebral disc and cervical bone hyperplasia. Occupational reasons are one of the causes of cervical spondylosis, especially for people who need to work at a desk for a long time, such as programmers, writers and teachers. Moreover, the work pressure is high now, and overtime work increases the burden on the cervical spine. Now, with the popularity of smartphones, people are also looking down at smartphones during leisure time, which also increases the burden on the cervical spine during leisure time and is more likely to cause cervical spondylosis.

[0003] The fundamental principle of cervical spondylosis treatment is to restore the original normal and stable biomechanical structure of the cervical spine, the most important of which is to restore the normal physiological curvature of the cervical spine. Therefore, reducing the pressure of the head on the cervical spine is one of the treatment methods that can be used. Cervical traction device is a common device for treating cervical spondylosis on the market. However, there are many problems with the common cervical traction devices on the market, such as large packaging, large space occupation, folding and disassembly requiring tools, and even manual lifting and lowering are particularly laborious and inconvenient, and are not smart enough. Among them, it should be emphasized that the existing cervical traction devices need to be disassembled and assembled with tools, and cannot accurately fix the strength of each folding joint, which causes the frame to be loose and cannot achieve the best effect of traction on the cervical spine. Summary of the invention

[0004] The purpose of the present invention is to provide a cervical traction device to alleviate the technical problem in the prior art that the strength of each folding joint cannot be accurately fixed, resulting in the overall frame being loose and not compact enough, that is, the appropriate height and strength cannot be accurately adjusted, and it is not easy to carry.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention provides a cervical traction device, comprising a telescopic structure, a backrest structure, a seat plate structure and a rear leg structure, wherein the telescopic structure is slidably connected to the backrest structure, and the telescopic structure comprises a traction belt for connecting to the head and neck of a human body;

[0007] The seat plate structure comprises a seat plate frame mechanism, a connecting mechanism and a front foot, wherein the seat plate frame mechanism is connected to an end of the backrest structure away from the telescopic structure, and an end of the seat plate frame mechanism away from the backrest structure is connected to the front foot through the connecting mechanism;

[0008] The seat frame mechanism is used to fold toward the backrest structure in the storage state;

[0009] The front legs are used to be folded toward the seat frame mechanism through the connecting mechanism in the storage state;

[0010] The rear leg structure is connected to an end of the backrest structure away from the telescopic structure, and the rear leg structure is arranged on a side of the backrest structure away from the seat plate structure;

[0011] The rear leg structure is used to be folded toward the backrest structure in the storage state.

[0012] Furthermore, the telescopic structure further comprises a support frame mechanism, a telescopic mechanism, a pushing mechanism and a back opening mechanism, the support frame mechanism is a U-shaped structure, and the end of the support frame mechanism is connected to the traction belt;

[0013] One end of the telescopic mechanism is connected to the support frame mechanism, and the other end is connected to the back opening mechanism;

[0014] The back opening mechanism is connected to the backrest structure;

[0015] The pushing mechanism includes an electric push rod and a hand control, and the hand control is electrically connected to the electric push rod;

[0016] One end of the electric push rod is connected to the back opening mechanism, and the other end is connected to an end of the telescopic mechanism away from the back opening mechanism. The electric push rod is used to drive the telescopic mechanism to extend or shorten to adjust the height of the support frame mechanism.

[0017] Furthermore, the support frame mechanism includes an L-shaped support tube, a fixing sleeve, a tension spring, a double-layer spring sheet and a tension spring fixing seat;

[0018] The fixed sleeve is connected to the telescopic mechanism, and both ends of the fixed sleeve are respectively connected to the corresponding L-shaped support tubes;

[0019] The double-layer spring sheet is arranged in the L-shaped support tube, and the double-layer spring sheet is connected to one end of the tension spring through the tension spring fixing seat, and the other end of the tension spring is connected to the fixing sleeve;

[0020] The outer wall of the L-shaped support tube is provided with a limiting plug, and the fixed sleeve is provided with a limiting slot. The L-shaped support tube is used to be fixed relative to the fixed sleeve by inserting the limiting plug into the corresponding limiting slot.

[0021] Further, the back opening mechanism includes a back opening tube, a welding sleeve, a single-piece marble, a fixing assembly and a rotating welding seat;

[0022] The open-back tube is rotatably connected to one end of the corresponding rotary welding seat through the single marble, and the other end of the rotary welding seat is connected to the corresponding welding sleeve through the single marble;

[0023] The fixing assembly is connected to an end of the welding sleeve away from the rotary welding seat, and the fixing assembly is respectively connected to the telescopic mechanism and the backrest structure.

[0024] Further, the fixing assembly comprises a sliding sleeve, a connecting sleeve, a spring, a sleeve nut and a sliding pin, the sliding sleeve is connected to the corresponding welding sleeve, the sliding sleeve is slidably connected to the backrest structure, and the sliding sleeve is connected to the telescopic mechanism;

[0025] One end of the connecting sleeve is connected to the sliding sleeve, and the other end of the connecting sleeve is provided with the sleeve nut;

[0026] One end of the sliding pin passes through the sleeve nut and the connecting sleeve in sequence, and is inserted into the sliding sleeve to position the backrest structure;

[0027] The spring is arranged in the connecting sleeve, and one end of the spring is connected to the connecting sleeve, and the other end of the spring is connected to the sliding pin.

[0028] Furthermore, the backrest structure includes a backboard, a vertical tube, an inner sliding assembly and a sliding lever assembly, one end of the vertical tube is connected to the telescopic structure, and the other end of the vertical tube is connected to the seat frame mechanism and the rear foot structure respectively through the sliding lever assembly;

[0029] The back plate is connected to the riser;

[0030] The inner sliding assembly is slidably connected to the riser, and the rear leg structure is used to be linked with the seat frame mechanism through the inner sliding assembly.

[0031] Further, the inner sliding assembly comprises a plastic sleeve, a sliding block, a first elastic member and a fixing pin, the plastic sleeve is arranged in the vertical pipe, and the sliding block and the first elastic member are arranged in the plastic sleeve;

[0032] The sliding block is provided with a first sliding groove, and the first sliding groove is slidably provided with the fixing pin, and the fixing pin is connected with the plastic sleeve;

[0033] One end of the first elastic member is connected to the plastic sleeve, and the other end of the first elastic member is connected to the sliding block and is slidably connected in the second sliding groove provided in the plastic sleeve;

[0034] The sliding lever assembly includes a fixing plate, a latch spring and a movable pin, the fixing plate is connected to the vertical pipe, and the fixing plate is provided with a horizontal sleeve;

[0035] The latch spring is sleeved on the outside of the movable pin, and the movable pin is inserted into the horizontal sleeve. The movable pin is used to abut against the seat plate structure.

[0036] Further, the seat frame mechanism comprises a seat plate, a seat frame, a connecting piece and a folding guide block, the seat frame is connected to the seat plate, and one end of the seat frame is provided with the folding guide block, and the folding guide block is used to connect with the sliding block;

[0037] The other end of the seat frame is rotatably connected to the front foot through the connecting piece.

[0038] Furthermore, the connecting mechanism comprises a sliding cross bar, a fixing block, a sliding paddle, a second elastic member and a fixing seat, and both ends of the sliding cross bar are connected to the sliding paddle through the fixing block;

[0039] One end of the sliding paddle is connected to the fixing seat through the second elastic member, and the fixing seat is connected to the front foot;

[0040] The other end of the sliding paddle is used for plugging with the connecting member.

[0041] Further, the rear foot structure includes a rear foot body, a folding paddle, a blocking piece, a fixing piece, a third elastic piece and a sliding piece, the rear foot body is rotatably connected to the backrest structure, and the fixing piece is arranged in the rear foot body, and the fixing piece is connected to the sliding piece through the third elastic piece;

[0042] The sliding sheet is used to be plugged into the backrest structure so that the rear foot body is positioned relative to the backrest structure;

[0043] The folding paddle is connected to the rear foot body, and the folding paddle is used to drive the folding guide block to move through the sliding block;

[0044] The blocking piece is connected to the rear foot body, and the blocking piece is connected to the seat frame through the movable pin.

[0045] The present invention can achieve the following beneficial effects:

[0046] In the first aspect, the present invention provides a cervical traction device, comprising a telescopic structure, a backrest structure, a seat plate structure and a rear leg structure, the telescopic structure is slidably connected to the backrest structure, and the telescopic structure comprises a traction belt for connecting to the head and neck of a human body; the seat plate structure comprises a seat plate frame mechanism, a connecting mechanism and a front leg, the seat plate frame mechanism is connected to an end of the backrest structure away from the telescopic structure, and an end of the seat plate frame mechanism away from the backrest structure is connected to the front leg through the connecting mechanism; the seat plate frame mechanism is used to fold toward the backrest structure in a stored state; the front leg is used to fold toward the seat plate frame mechanism in the stored state through the connecting mechanism; the rear leg structure is connected to an end of the backrest structure away from the telescopic structure, and the rear leg structure is arranged on a side of the backrest structure away from the seat plate structure; the rear leg structure is used to fold toward the backrest structure in the stored state.

[0047] In the present invention, the telescopic structure is connected to the top of the backrest structure, and the seat plate structure and the rear foot structure are connected to the bottom of the backrest structure; when in use, the telescopic structure is pulled upward relative to the backrest structure so that the traction belt is located at an appropriate height, and the seat plate structure and the rear foot structure connected to the bottom of the backrest structure are both rotatably connected to the backrest structure, and the seat plate structure and the rear foot structure are limited when in use. In the storage state, the telescopic structure is shortened toward the backrest structure, and the support frame mechanism of the telescopic structure is bent downward; and the seat plate structure and the rear foot structure rotatably connected to the backrest structure are flipped toward the backrest structure from the clockwise and counterclockwise directions, respectively, so that the seat plate structure and the rear foot structure are located on both sides of the backrest structure.

[0048] Compared with the prior art, the cervical traction device provided by the present invention connects the telescopic structure with the backrest structure to achieve the function of adjusting the height of the traction belt of the telescopic structure, and the telescopic structure can be retracted to the shortest after use; and the seat plate structure and the rear leg structure connected to the bottom of the backrest structure can be connected to the backrest structure through limited rotation to achieve limited support and storage after rotation, and the two can be located on both sides of the backrest structure in the storage state.

[0049] In summary, the present invention at least alleviates the technical problem in the prior art that the strength of each folding joint cannot be accurately fixed, resulting in the overall frame being loose and not compact enough, that is, it is impossible to accurately adjust the appropriate height and strength, and it is not easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 A schematic diagram of the three-dimensional structure of the cervical traction device provided by an embodiment of the present invention in a use state;

[0052] Figure 2 A schematic diagram of the three-dimensional structure of the cervical traction device provided by an embodiment of the present invention in a storage state from a first perspective;

[0053] Figure 3 A schematic diagram of the stereoscopic structure of the cervical traction device provided by an embodiment of the present invention in a storage state from a second viewing angle;

[0054] Figure 4 A three-dimensional schematic diagram of the telescopic structure of a cervical traction device provided by an embodiment of the present invention;

[0055] Figure 5 An exploded view of a support frame mechanism of a cervical vertebra traction device provided by an embodiment of the present invention;

[0056] Figure 6 An exploded view of the back-opening mechanism of the cervical traction device provided in an embodiment of the present invention;

[0057] Figure 7 A schematic diagram of the structure of a pushing mechanism of a cervical vertebra traction device provided by an embodiment of the present invention;

[0058] Figure 8 A schematic diagram of the three-dimensional structure of the backrest structure of the cervical traction device provided by an embodiment of the present invention;

[0059] Fig. 9 A schematic structural diagram of a sliding lever assembly of a cervical traction device provided by an embodiment of the present invention;

[0060] Fig.10 A schematic diagram of the structure of an inner sliding assembly of a cervical traction device provided by an embodiment of the present invention;

[0061] Fig.11 A three-dimensional schematic diagram of a seat plate structure of a cervical traction device provided by an embodiment of the present invention;

[0062] Fig.12 An exploded view of the rear foot structure of the cervical traction device provided by an embodiment of the present invention;

[0063] Fig.13 A partial structural diagram of the folding part of the cervical vertebra traction device provided by an embodiment of the present invention in a first state;

[0064] Fig.14 A partial structural diagram of the folding portion of the cervical vertebra traction device provided by an embodiment of the present invention in a second state;

[0065] Fig.15A partial structural diagram of the folding portion of the cervical vertebra traction device provided by an embodiment of the present invention in a third state.

[0066] Icons: 1-telescopic structure; 11-support frame mechanism; 111-L-shaped support tube; 1111-limiting plug; 112-fixed sleeve; 113-tension spring; 114-double-layer spring; 115-tension spring fixing seat; 12-traction belt; 13-telescopic mechanism; 131-telescopic upper tube; 132-telescopic lower tube; 133-connecting plate; 14-pushing mechanism; 141-electric push rod; 142-hand control; 15-back opening mechanism; 151-back opening tube; 152-welding sleeve; 153-single-piece marble; 154-fixed component; 1541-sliding sleeve; 1542-connecting sleeve; 1543-spring; 1544-sleeve nut; 1545-sliding pin; 155-rotating welding seat; 2-backrest structure; 2 1-back plate; 22-vertical tube; 23-inner sliding assembly; 231-plastic sleeve; 232-sliding block; 233-first elastic member; 234-fixing pin; 24-sliding lever assembly; 241-fixing plate; 242-latch spring; 243-movable pin; 3-seat plate structure; 31-seat plate frame mechanism; 311-seat plate; 312-seat frame; 313-connecting member; 314-folding guide block; 32-connecting mechanism; 321-sliding cross bar; 322-fixing block; 323-sliding paddle; 324-second elastic member; 325-fixing seat; 33-front foot; 4-rear foot structure; 41-rear foot body; 42-folding paddle; 43-blocking plate; 44-fixing member; 45-third elastic member; 46-sliding plate. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 here can be arranged and designed in various different configurations.

[0068] 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 claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] 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, further definition and explanation thereof is not required in subsequent drawings.

[0070] In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use, which 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0071] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0072] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0074] Embodiment 1

[0075] This embodiment provides a cervical traction device, referring to Figure 1 , Figure 2 , Figure 3 and Fig.11The cervical traction device includes a telescopic structure 1, a backrest structure 2, a seat plate structure 3 and a rear leg structure 4. The telescopic structure 1 is slidably connected to the backrest structure 2, and the telescopic structure 1 includes a traction belt 12 for connecting to the head and neck of a human body; the seat plate structure 3 includes a seat plate frame mechanism 31, a connecting mechanism 32 and a front leg 33. The seat plate frame mechanism 31 is connected to the end of the backrest structure 2 away from the telescopic structure 1, and the end of the seat plate frame mechanism 31 away from the backrest structure 2 is connected to the front leg 33 through the connecting mechanism 32; the seat plate frame mechanism 31 is used to fold toward the backrest structure 2 in the storage state; the front leg 33 is used to fold toward the seat plate frame mechanism 31 in the storage state through the connecting mechanism 32; the rear leg structure 4 is connected to the end of the backrest structure 2 away from the telescopic structure 1, and the rear leg structure 4 is arranged on the side of the backrest structure 2 away from the seat plate structure 3; the rear leg structure 4 is used to fold toward the backrest structure 2 in the storage state.

[0076] The embodiments of the present invention at least alleviate the technical problem in the prior art that the strength of each folding joint cannot be accurately fixed, resulting in the overall frame being loose and not compact enough, that is, the appropriate height and strength cannot be accurately adjusted, and it is not easy to carry.

[0077] In the embodiment of the present invention, the telescopic structure 1 is connected to the top of the backrest structure 2, and the seat plate structure 3 and the rear leg structure 4 are connected to the bottom of the backrest structure 2; when in use, the telescopic structure 1 is pulled upward relative to the backrest structure 2 so that the traction belt 12 is located at an appropriate height, and the seat plate structure 3 and the rear leg structure 4 connected to the bottom of the backrest structure 2 are both rotatably connected to the backrest structure 2, and the seat plate structure 3 and the rear leg structure 4 are limited when in use. In the storage state, the telescopic structure 1 is shortened toward the backrest structure 2, and the support frame mechanism 11 of the telescopic structure 1 is bent downward; and the seat plate structure 3 and the rear leg structure 4 rotatably connected to the backrest structure 2 are flipped toward the backrest structure 2 from the clockwise and counterclockwise directions, respectively, so that the seat plate structure 3 and the rear leg structure 4 are located on both sides of the backrest structure 2.

[0078] Compared with the prior art, the cervical traction device provided in the embodiment of the present invention connects the telescopic structure 1 with the backrest structure 2 to achieve the function of adjusting the height of the traction belt 12 of the telescopic structure 1, and the telescopic structure 1 can be retracted to the shortest after use; and the seat plate structure 3 and the rear leg structure 4 connected to the bottom of the backrest structure 2 can be connected to the backrest structure 2 through a limited rotation to achieve limited support and storage after rotation, and the two can be located on both sides of the backrest structure 2 in the storage state.

[0079] In an optional implementation manner of this embodiment, refer to Figure 4 and Figure 7The telescopic structure 1 also includes a support frame mechanism 11, a telescopic mechanism 13, a pushing mechanism 14 and a back-opening mechanism 15. The support frame mechanism 11 is a U-shaped structure, and the end of the support frame mechanism 11 is connected to the traction belt 12; one end of the telescopic mechanism 13 is connected to the support frame mechanism 11, and the other end is connected to the back-opening mechanism 15; the back-opening mechanism 15 is connected to the backrest structure 2; the pushing mechanism 14 includes an electric push rod 141 and a hand control 142, and the hand control 142 is electrically connected to the electric push rod 141; one end of the electric push rod 141 is connected to the back-opening mechanism 15, and the other end is connected to one end of the telescopic mechanism 13 away from the back-opening mechanism 15. The electric push rod 141 is used to drive the telescopic mechanism 13 to extend or shorten to adjust the height of the support frame mechanism 11.

[0080] Specifically: the support frame mechanism 11 is a U-shaped structure, and the two ends of the support frame mechanism 11 are detachably connected to the two ends of the traction belt 12, and the connection method can be a hook connection. The telescopic mechanism 13 includes a telescopic upper tube 131, a telescopic lower tube 132 and a connecting piece 133. The telescopic upper tube 131 is slidably inserted into the telescopic lower tube 132, and the top of the telescopic upper tube 131 is connected to the support frame mechanism 11; the telescopic lower tube 132 is connected to the back opening mechanism 15; and one end of the connecting piece 133 is connected to the top of the telescopic upper tube 131, and the other end is connected to the back opening mechanism 15, so that the telescopic lower tube 132 is fixed relative to the back opening mechanism 15. One end of the electric push rod 141 is connected to the back opening mechanism 15, and the other end is connected to the telescopic upper tube 131. When in use, the telescopic mechanism 13 and the electric push rod 141 are both arranged vertically, and the electric push rod 141 is started by controlling the hand control unit 142 to drive the telescopic upper tube 131 to insert or extend the telescopic lower tube 132, thereby achieving the need to adjust the height of the support frame mechanism 11.

[0081] Further, refer to Figure 5 The support frame mechanism 11 includes an L-shaped support tube 111, a fixed sleeve 112, a tension spring 113, a double-layer spring sheet 114 and a tension spring fixing seat 115; the fixed sleeve 112 is connected to the telescopic mechanism 13, and the two ends of the fixed sleeve 112 are respectively connected to the corresponding L-shaped support tube 111; a double-layer spring sheet 114 is arranged in the L-shaped support tube 111, and the double-layer spring sheet 114 is connected to one end of the tension spring 113 through the tension spring fixing seat 115, and the other end of the tension spring 113 is connected to the fixed sleeve 112; a limiting plug 1111 is arranged on the outer wall of the L-shaped support tube 111, and a limiting slot is provided in the fixed sleeve 112, and the L-shaped support tube 111 is used to fix relative to the fixed sleeve 112 by inserting the limiting plug 1111 into the corresponding limiting slot.

[0082] Specifically: L-shaped support tubes 111 are respectively provided at both ends of the fixed sleeve 112, and the free end of the long side of the L-shaped support tube 111 is provided with a connecting ring for connecting with the traction belt 12, and the outer wall of the other end of the L-shaped support tube 111 is provided with a limiting plug 1111, and the corresponding fixed sleeve 112 is provided with a limiting slot, and the limiting plug 1111 is inserted into the limiting slot so that the L-shaped support tube 111 cannot rotate relative to the fixed sleeve 112, and the L-shaped support tube 111 is connected to one end of the tension spring 113 after passing through the double-layer spring sheet 114 through the tension spring fixing seat 115, and the other end of the tension spring 113 extends into the fixed sleeve 112 and is connected to the pin inserted in the fixed sleeve 112. When in use, due to the tension of the tension spring 113, the limit plug 1111 is firmly inserted into the limit slot. At this time, the L-shaped support tube 111 is in a horizontal state. When it needs to be stored, the L-shaped support tube 111 needs to be pulled outward so that the limit plug 1111 is pulled out of the limit slot, and then the L-shaped support tube 111 can be rotated to adjust it to a vertical state.

[0083] In an optional implementation manner of this embodiment, refer to Figure 6 The back-opening mechanism 15 includes a back-opening tube 151, a welding sleeve 152, a single-piece marble 153, a fixing component 154 and a rotating welding seat 155; the back-opening tube 151 is rotatably connected to one end of the corresponding rotating welding seat 155 through the single-piece marble 153, and the other end of the rotating welding seat 155 is connected to the corresponding welding sleeve 152 through the single-piece marble 153; the fixing component 154 is connected to one end of the welding sleeve 152 away from the rotating welding seat 155, and the fixing component 154 is respectively connected to the telescopic mechanism 13 and the backrest structure 2.

[0084] Specifically: one end of the open-back tube 151 is rotatably connected to the rotary welding seat 155 through a single marble 153, and the other end of the rotary welding seat 155 is connected to the welding sleeve 152 through a single marble 153, and the free end of the welding sleeve 152 is used to weld to the protruding part of the fixing component 154; the fixing component 154 is connected to the telescopic mechanism 13 and controls the protruding length of the telescopic mechanism 13.

[0085] Further, refer to Figure 6The fixing assembly 154 includes a sliding sleeve 1541, a connecting sleeve 1542, a spring 1543, a sleeve nut 1544 and a sliding pin 1545. The sliding sleeve 1541 is connected to the corresponding welding sleeve 152, the sliding sleeve 1541 is slidingly connected to the backrest structure 2, and the sliding sleeve 1541 is connected to the telescopic mechanism 13; one end of the connecting sleeve 1542 is connected to the sliding sleeve 1541, and the other end of the connecting sleeve 1542 is provided with a sleeve nut 1544; one end of the sliding pin 1545 passes through the sleeve nut 1544 and the connecting sleeve 1542 in sequence, and is inserted into the sliding sleeve 1541 to position the backrest structure 2; the spring 1543 is arranged in the connecting sleeve 1542, and one end of the spring 1543 is connected to the connecting sleeve 1542, and the other end is connected to the sliding pin 1545.

[0086] Specifically: the sliding sleeve 1541 is preferably a rectangular sleeve, and the sliding sleeve 1541 is connected to the end of the connecting piece 133 away from the telescopic lower tube 132, and the telescopic lower tube 132 is inserted into the backrest structure 2 and slidably connected thereto; a connecting sleeve 1542 is horizontally provided on one side of the sliding sleeve 1541, and a spring 1543 is provided in the connecting sleeve 1542 along its extension direction, and an external thread is provided at the end of the connecting sleeve 1542 away from the sliding sleeve 1541, and the spring 1543 is limited by sleeve nut 1544 on the external thread, one end of the spring 1543 is connected to the sliding pin 1545, and one end of the sliding pin 1545 is inserted into the sliding sleeve 1541, and passes through the sliding sleeve 1541 and the backrest structure 2 in sequence, so that the sliding sleeve 1541 is limited relative to the backrest structure 2. During the storage process, the sliding pin 1545 is pulled out, and the sliding sleeve 1541 can slide along the backrest structure 2. At this time, the telescopic upper tube 131 is inserted into the telescopic lower tube 132, and the telescopic lower tube 132 is inserted into the backrest structure 2, thereby realizing the lowering of the support frame mechanism 11.

[0087] In an optional implementation manner of this embodiment, refer to Figure 8 The backrest structure 2 includes a back plate 21, a vertical tube 22, an inner sliding assembly 23 and a sliding lever assembly 24. One end of the vertical tube 22 is connected to the telescopic structure 1, and the other end of the vertical tube 22 is respectively connected to the seat frame mechanism 31 and the rear leg structure 4 through the sliding lever assembly 24; the back plate 21 is connected to the vertical tube 22; the inner sliding assembly 23 is slidably connected to the vertical tube 22, and the rear leg structure 4 is used to be linked with the seat frame mechanism 31 through the inner sliding assembly 23.

[0088] Specifically: a vertically arranged back plate 21 is provided at one end of the vertical tube 22, and a sliding sleeve 1541 is slidably provided on the outside of the vertical tube 22, and the bottom of the vertical tube 22 is rotatably connected to the seat plate structure 3 and the rear foot structure 4 respectively through the sliding lever assembly 24, and the rear foot structure 4 and the seat plate frame mechanism 31 are driven to work in conjunction through the inner sliding assembly 23.

[0089] Further, refer to Fig. 9 and Fig.10 The inner sliding assembly 23 includes a plastic sleeve 231, a sliding block 232, a first elastic member 233 and a fixing pin 234. The plastic sleeve 231 is arranged in the vertical tube 22, and the sliding block 232 and the first elastic member 233 are arranged in the plastic sleeve 231; the sliding block 232 is provided with a first sliding groove, and the first sliding groove is slidably provided with a fixing pin 234, and the fixing pin 234 is connected to the plastic sleeve 231; one end of the first elastic member 233 is connected to the plastic sleeve 231, and the other end of the first elastic member 233 is connected to the sliding block 232 and slidably connected in the second sliding groove provided in the plastic sleeve 231; the sliding lever assembly 24 includes a fixing plate 241, a latch spring 242 and a movable pin 243, the fixing plate 241 is connected to the vertical tube 22, and the fixing plate 241 is provided with a horizontal sleeve; the latch spring 242 is sleeved on the outside of the movable pin 243, and the movable pin 243 is inserted into the horizontal sleeve, and the movable pin 243 is used to abut against the seat plate structure 3.

[0090] Specifically: the plastic sleeve 231 is fixedly arranged in the vertical pipe 22, and a fixing pin 234 is arranged in the horizontal direction in the plastic sleeve 231, and the sliding block 232 is provided with a first sliding groove, and the fixing pin 234 passes through this first sliding groove, so that the sliding block 232 is slidably arranged in the plastic sleeve 231 along the vertical direction; and the first elastic member 233 includes two connecting rods and two spring bodies, and the two ends of the spring body are respectively connected to the two connecting rods, wherein the upper connecting rod is fixedly connected to the hole of the plastic sleeve 231, and the lower connecting rod passes through the sliding block 232 and is slidably arranged in the second sliding groove of the plastic sleeve 231; it should be noted that the first protrusion and the second protrusion are respectively arranged at the opposite ends of the sliding block 232, and the first protrusion and the second protrusion both pass through the plastic sleeve 231 and the vertical pipe 22.

[0091] The fixing plate 241 is connected to the outer wall of the vertical tube 22, and one end of the fixing plate 241 is rotatably connected to the seat plate structure 3, and the other end is rotatably connected to the rear foot structure 4; and movable pin sleeves are provided on both sides of the fixing plate 241, and a latch spring 242 and an inserted movable pin 243 are provided in the movable pin sleeve. The movable pin 243 is vertically inserted into the limit pin, and the limit pin is slidably arranged in the groove body opened by the movable pin sleeve, so that the movable pin 243 moves along the extension direction of the movable pin sleeve, and the movable pin 243 is used to realize linkage between the rear foot structure 4 and the seat plate frame mechanism 31.

[0092] Further, refer to Fig.11 The seat frame mechanism 31 includes a seat plate 311, a seat frame 312, a connecting piece 313 and a folding guide block 314. The seat frame 312 is connected to the seat plate 311, and one end of the seat frame 312 is provided with a folding guide block 314, and the folding guide block 314 is used to connect with the sliding block 232; the other end of the seat frame 312 is rotatably connected to the front foot 33 through the connecting piece 313.

[0093] Specifically: the seat plate 311 is connected to the top of the seat frame 312, and one end of the seat frame 312 is rotatably connected to the fixing plate 241 through a folding guide block 314, and two connecting members 313 are symmetrically provided at the bottom of the other end, and the two connecting members 313 are used to be rotatably connected to the front foot 33 through the connecting mechanism 32.

[0094] Further, refer to Fig.11 The connecting mechanism 32 includes a sliding cross bar 321, a fixed block 322, a sliding paddle 323, a second elastic member 324 and a fixed seat 325. Both ends of the sliding cross bar 321 are connected to the sliding paddle 323 through the fixed block 322; one end of the sliding paddle 323 is connected to the fixed seat 325 through the second elastic member 324, and the fixed seat 325 is connected to the front foot 33; the other end of the sliding paddle 323 is used for plugging with the connecting member 313.

[0095] Specifically: both ends of the sliding cross bar 321 are connected to the sliding paddle 323 through the fixing block 322, the sliding paddle 323 is slidably arranged in the front foot 33, and a protrusion is provided at the bottom of the sliding paddle 323, and this protrusion is connected to one end of the second elastic member 324, and the other end of the second elastic member 324 is connected to the fixing seat 325, the fixing seat 325 is arranged in the front foot 33 and fixed relative to the front foot 33 by a pin; the top of the sliding paddle 323 is connected to the connecting member 313, and the connecting member 313 is rotatably connected to the front foot 33. When in use, the sliding paddle 323 is plugged into the connecting member 313 to fix the sliding paddle 323 relative to the connecting member 313, thereby fixing the front leg 33; when folding, the sliding cross bar 321 is pressed down to compress the spring-shaped second elastic member 324 to separate the sliding paddle 323 from the connecting member 313, and then the front leg 33 can be rotated to achieve folding and storage.

[0096] Further, refer to Fig.12 The rear foot structure 4 includes a rear foot body 41, a folding paddle 42, a blocking piece 43, a fixing piece 44, a third elastic piece 45 and a sliding piece 46. The rear foot body 41 is rotatably connected to the backrest structure 2, and a fixing piece 44 is provided in the rear foot body 41, and the fixing piece 44 is connected to the sliding piece 46 through the third elastic piece 45; the sliding piece 46 is used to be plugged into the backrest structure 2 to position the rear foot body 41 relative to the backrest structure 2; the folding paddle 42 is connected to the rear foot body 41, and the folding paddle 42 is used to drive the folding guide block 314 to move through the sliding block 232; the blocking piece 43 is connected to the rear foot body 41, and the blocking piece 43 is connected to the seat frame 312 through the movable pin 243.

[0097] Specifically: a fixing member 44 is fixed in the rear foot body 41 by a latch, and a third elastic member 45 is provided on the top of the fixing member 44, and a sliding piece 46 is provided on the other end of the third elastic member 45. The sliding piece 46 is slidably arranged in the rear foot body 41, and the left and right ends of the sliding piece 46 respectively pass through the rear foot body 41, and the fixing piece 241 is provided with an insertion groove, and the sliding piece 46 is plugged into the insertion groove to fix the rear foot body 41 relative to the fixing piece 241; and a blocking piece 43 is provided on the side of the rear foot body 41 facing the backrest structure 2, and the blocking piece 43 is used to abut against the movable pin 243; and a folding paddle 42 is connected to the top of the rear foot body 41.

[0098] During use, refer to Fig.13 , the sliding piece 46 is inserted into the insertion groove of the fixing piece 241 to fix the rear foot body 41 relative to the fixing piece 241. At this time, due to the elastic effect of the latch spring 242, one end of the movable pin 243 in the movable pin sleeve on both sides of the fixing piece 241 is inserted into the reserved hole of the seat frame 312 to achieve fixation. Then, refer to Fig.14 , slide the sliding piece 46 out of the insertion slot, and the rear foot body 41 can rotate relative to the sliding lever assembly 24. As the rear foot body 41 rotates continuously, the folding paddle 42 on the top thereof abuts against the second protrusion of the sliding block 232, thereby driving the sliding block 232 to move downward along the extension direction of the vertical tube 22, and in this process, the movable pin 243 is pulled out from the seat frame 312. Finally, referring to Fig.15 , continue to rotate the rear foot body 41 so that the folding paddle 42 pushes the sliding block 232 to continue moving, and the first protrusion of the sliding block 232 pushes the folding guide block 314, so as to drive the seat frame 312 to fold through the folding guide block 314, thereby causing the seat plate structure 3 to fold upward, until the seat plate structure 3 and the rear foot structure 4 are arranged on both sides of the backrest structure 2.

[0099] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other; the above embodiments in this specification are only used to illustrate the technical solution of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that: it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.

Claims

1. A cervical traction device, characterized in that: The telescopic structure (1) comprises a backrest structure (2), a seat plate structure (3) and a rear leg structure (4), wherein the telescopic structure (1) is slidably connected to the backrest structure (2), and the telescopic structure (1) comprises a traction belt (12) for connecting to the head and neck of a human body; The seat plate structure (3) comprises a seat plate frame mechanism (31), a connecting mechanism (32) and a front leg (33); the seat plate frame mechanism (31) is connected to an end of the backrest structure (2) away from the telescopic structure (1), and the end of the seat plate frame mechanism (31) away from the backrest structure (2) is connected to the front leg (33) via the connecting mechanism (32); The seat frame mechanism (31) is used to be folded toward the backrest structure (2) in the stored state; The front foot (33) is used to be folded toward the seat frame mechanism (31) through the connecting mechanism (32) in the storage state; The rear leg structure (4) is connected to an end of the backrest structure (2) away from the telescopic structure (1), and the rear leg structure (4) is arranged on a side of the backrest structure (2) away from the seat plate structure (3); The rear leg structure (4) is used to be folded toward the backrest structure (2) in the stored state.

2. The cervical traction device according to claim 1, characterized in that: The telescopic structure (1) further comprises a support frame mechanism (11), a telescopic mechanism (13), a pushing mechanism (14) and a back-opening mechanism (15); the support frame mechanism (11) is a U-shaped structure, and the end of the support frame mechanism (11) is connected to the traction belt (12); One end of the telescopic mechanism (13) is connected to the support frame mechanism (11), and the other end is connected to the back opening mechanism (15); The back opening mechanism (15) is connected to the backrest structure (2); The pushing mechanism (14) comprises an electric push rod (141) and a hand control (142), and the hand control (142) is electrically connected to the electric push rod (141); One end of the electric push rod (141) is connected to the back opening mechanism (15), and the other end is connected to an end of the telescopic mechanism (13) away from the back opening mechanism (15). The electric push rod (141) is used to drive the telescopic mechanism (13) to extend or shorten so as to adjust the height of the support frame mechanism (11).

3. The cervical traction device according to claim 2, characterized in that: The support frame mechanism (11) comprises an L-shaped support tube (111), a fixing sleeve (112), a tension spring (113), a double-layer spring sheet (114) and a tension spring fixing seat (115); The fixed sleeve (112) is connected to the telescopic mechanism (13), and both ends of the fixed sleeve (112) are respectively connected to the corresponding L-shaped support tube (111); The double-layer spring sheet (114) is arranged in the L-shaped support tube (111), and the double-layer spring sheet (114) is connected to one end of the tension spring (113) through the tension spring fixing seat (115), and the other end of the tension spring (113) is connected to the fixing sleeve (112); The outer wall of the L-shaped support tube (111) is provided with a limiting plug block (1111), and the fixing sleeve (112) is provided with a limiting slot, and the L-shaped support tube (111) is used to fix the limiting plug block (1111) relative to the fixing sleeve (112) by inserting the limiting plug block (1111) into the corresponding limiting slot.

4. The cervical traction device according to claim 2, characterized in that: The back opening mechanism (15) comprises a back opening tube (151), a welding sleeve (152), a single-piece marble (153), a fixing assembly (154) and a rotating welding seat (155); The open-back tube (151) is rotatably connected to one end of the corresponding rotary welding seat (155) through the single-piece marble (153), and the other end of the rotary welding seat (155) is connected to the corresponding welding sleeve (152) through the single-piece marble (153); The fixing component (154) is connected to an end of the welding sleeve (152) away from the rotating welding seat (155), and the fixing component (154) is respectively connected to the telescopic mechanism (13) and the backrest structure (2).

5. The cervical traction device according to claim 4, characterized in that: The fixing assembly (154) comprises a sliding sleeve (1541), a connecting sleeve (1542), a spring (1543), a sleeve nut (1544) and a sliding pin (1545); the sliding sleeve (1541) is connected to the corresponding welding sleeve (152); the sliding sleeve (1541) is slidably connected to the backrest structure (2); and the sliding sleeve (1541) is connected to the telescopic mechanism (13); One end of the connecting sleeve (1542) is connected to the sliding sleeve (1541), and the other end of the connecting sleeve (1542) is provided with the sleeve nut (1544); One end of the sliding pin (1545) passes through the sleeve nut (1544) and the connecting sleeve (1542) in sequence, and is inserted into the sliding sleeve (1541) to position the backrest structure (2); The spring (1543) is disposed in the connecting sleeve (1542), and one end of the spring (1543) is connected to the connecting sleeve (1542), and the other end is connected to the sliding pin (1545).

6. The cervical traction device according to claim 1, characterized in that: The backrest structure (2) comprises a back plate (21), a vertical tube (22), an inner sliding assembly (23) and a sliding lever assembly (24); one end of the vertical tube (22) is connected to the telescopic structure (1), and the other end of the vertical tube (22) is respectively connected to the seat frame mechanism (31) and the rear foot structure (4) through the sliding lever assembly (24); The back plate (21) is connected to the riser (22); The inner sliding component (23) is slidably connected to the stand pipe (22), and the rear foot structure (4) is used to be linked with the seat frame mechanism (31) through the inner sliding component (23).

7. The cervical traction device according to claim 6, characterized in that: The inner sliding component (23) comprises a plastic sleeve (231), a sliding block (232), a first elastic member (233) and a fixing pin (234); the plastic sleeve (231) is arranged in the vertical pipe (22), and the sliding block (232) and the first elastic member (233) are arranged in the plastic sleeve (231); The sliding block (232) is provided with a first sliding groove, and the first sliding groove is slidably provided with the fixing pin (234), and the fixing pin (234) is connected to the plastic sleeve (231); One end of the first elastic member (233) is connected to the plastic sleeve (231), and the other end of the first elastic member (233) is connected to the sliding block (232) and is slidably connected in a second sliding groove provided in the plastic sleeve (231); The sliding lever assembly (24) comprises a fixing plate (241), a latch spring (242) and a movable pin (243); the fixing plate (241) is connected to the vertical pipe (22), and the fixing plate (241) is provided with a horizontal sleeve; The latch spring (242) is sleeved on the outside of the movable pin (243), and the movable pin (243) is inserted into the horizontal sleeve. The movable pin (243) is used to abut against the seat plate structure (3).

8. The cervical traction device according to claim 7, characterized in that: The seat plate frame mechanism (31) comprises a seat plate (311), a seat frame (312), a connecting piece (313) and a folding guide block (314); the seat frame (312) is connected to the seat plate (311), and one end of the seat frame (312) is provided with the folding guide block (314); the folding guide block (314) is used to connect with the sliding block (232); The other end of the seat frame (312) is rotatably connected to the front leg (33) via the connecting member (313).

9. The cervical traction device according to claim 8, characterized in that: The connecting mechanism (32) comprises a sliding cross bar (321), a fixing block (322), a sliding paddle (323), a second elastic member (324) and a fixing seat (325), and both ends of the sliding cross bar (321) are connected to the sliding paddle (323) via the fixing block (322); One end of the sliding paddle (323) is connected to the fixing seat (325) via the second elastic member (324), and the fixing seat (325) is connected to the front foot (33); The other end of the sliding paddle (323) is used for plugging into the connecting piece (313).

10. The cervical traction device according to claim 9, characterized in that: The rear foot structure (4) comprises a rear foot body (41), a folding paddle (42), a blocking piece (43), a fixing piece (44), a third elastic piece (45) and a sliding piece (46); the rear foot body (41) is rotatably connected to the backrest structure (2); the fixing piece (44) is arranged inside the rear foot body (41); and the fixing piece (44) is connected to the sliding piece (46) via the third elastic piece (45); The sliding sheet (46) is used to be plugged into the backrest structure (2) so as to position the rear foot body (41) relative to the backrest structure (2); The folding paddle (42) is connected to the rear foot body (41), and the folding paddle (42) is used to drive the folding guide block (314) to move through the sliding block (232); The blocking piece (43) is connected to the rear foot body (41), and the blocking piece (43) is connected to the seat frame (312) via the movable pin (243).

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