A cervical traction device

Abstract

The utility model relates to a cervical vertebra traction device, including traction seat, traction slide and shoulder support to set up in the electric module and electric control board of traction seat inside, the traction slide is slidably arranged in the traction seat surface, and the shoulder support is arranged in the traction seat end face and can be in contact with the human body double shoulder part, the traction slide is driven below by the electric module, and the far and near change is produced between the shoulder support, wherein: the electric module includes the gear and rack of speed reducer motor, and the gear is locked on the output shaft of speed reducer motor and engages with the rack, drives the rack to move in the slide way of traction seat, the push rod is set up to the rack one end upwards, the push rod can be inserted into the slot in the bottom of traction slide, and drives the traction slide to move along. The structure has the characteristics of unique conception, reasonable structure, stable operation, high efficiency, controllable traction.

Description

Technical Field

[0001] This utility model belongs to the field of physiotherapy equipment technology, and specifically relates to a cervical traction device, particularly a self-assisted traction solution. Background Technology

[0002] The fast-paced work life, especially for office workers, often involves maintaining one posture for extended periods without adequate movement or recovery, creating potential health risks for the cervical spine. Purposeful cervical traction can increase the intervertebral space and foramen, promoting blood circulation and metabolism, and restoring physiological curvature and joint mobility. Currently, there are mechanical traction devices that apply traction force via electric motors or traction beds; common devices include mechanical neck braces, traction chairs, or beds. Airbag traction, which adjusts pressure through inflation, is convenient to operate, provides a high degree of fit, and is suitable for short-term relief at home. However, most small traction devices lack traction force detection and control, making precise control of the traction force during traction impossible. Therefore, some vendors offer traction devices suitable for home use, such as:

[0003] CN200480012544 discloses a cervical traction device, which is manually driven and cannot achieve continuous adjustment of tension. CN202121640452.8 discloses a cervical rehabilitation traction device, in which a motor drives a rotating rod and traction plate to traction the cervical spine, but there is no traction force detection, which can easily lead to over-traction and injury.

[0004] The object of this invention is to find a more reasonable technical solution. Summary of the Invention

[0005] The purpose of this invention is to design a cervical traction device that uses a gear and rack drive and has adjustable traction force.

[0006] The present invention is implemented as follows: a cervical traction device includes a traction seat, a traction slide plate, and a shoulder support, as well as an electric module and an electric control board disposed within the traction seat; the traction slide plate is slidably disposed on the surface of the traction seat, and the shoulder support is disposed on the end face of the traction seat and can abut against the shoulders of the human body; the traction slide plate is driven by the electric module to change the distance between itself and the shoulder support; the electric module includes a geared motor and a rack, a gear locked on the output shaft of the geared motor meshes with the rack, driving the rack to move in the slide rail of the traction seat; a push rod is disposed at one end of the rack facing upward, the push rod can be inserted into the groove at the bottom of the traction slide plate, driving the traction slide plate to follow the movement.

[0007] The traction seat includes an upper cover and a bottom shell. The upper cover has an elongated slot corresponding to the movement trajectory of the push rod, and a raceway is provided on the upper surface on both sides of the elongated slot. The elongated slot has downward-facing guards on at least two long sides parallel to the movement trajectory. The bottom surface of the traction slide plate has a screw post formed corresponding to the position of the elongated slot, which can pass through the elongated slot. An anti-detachment slider extending into one side of the guard is locked on the screw post. Ball bearings are evenly distributed in the direction corresponding to the raceway.

[0008] The geared motor is suspended and locked to the bottom shell of the traction seat via a mounting plate that spans the rack. The slide rail on one side of the bottom shell is formed by two positioning plates that are locked to the bottom shell at intervals. The rack is provided with matching balls and raceways between itself and the bottom shell, the mounting plate, and the positioning plates.

[0009] The groove at the bottom of the traction slide has a slot on the side of the groove wall away from the shoulder support. A pressure sensor that can be touched by the push rod is inserted into the slot. The pressure sensor is electrically connected to the electronic control board.

[0010] The rack has a stroke rod at its end and two accessible limit switches. The two limit switches are directly welded to the electrical control board locked to the bottom shell and are electrically connected.

[0011] The bottom shell of the traction seat has grooves formed on both sides along the shoulder width direction, and a groove is formed on one side of the shoulder support that matches the end of the traction seat. A retaining rail is formed at the opening of the groove. The shoulder support is inserted from the side of the traction seat, and the retaining rail can slide and be engaged in the groove to form an adjustable positioning structure.

[0012] The traction slide plate has a double-layer structure, including a headrest plate and a support plate locked together. The headrest plate is longitudinally formed from the shoulder support end into a neck pillow area, a head pillow area, and a mounting groove. The head pillow area has an annular recessed portion, and the neck pillow area has protrusions on both sides and a recessed portion in the middle that matches the cervical spine. Together with the recessed portion of the head pillow area, they form a continuous streamlined structure. A traction boss is provided on the mounting groove. The traction boss has hanging rope ears on both sides, and a traction belt that can be wrapped around the chin is suspended between the hanging rope ears.

[0013] The headrest board has pulse electrode pads embedded in the two protrusions facing each other in the neck pillow area, and a soft rubber pad is attached to the concave part of the headrest area; a negative ion generator is set on the traction protrusion, and a phototherapy window is also embedded on the side facing the head. The phototherapy window is provided with an infrared tube plate, a curved reflective plate and a transparent panel from the inside to the outside; the negative ion generator and the infrared tube plate are both electrically connected to the electronic control board and are controlled by the electronic control board.

[0014] The bottom shell of the traction seat has support feet on both sides away from the shoulder support. The support feet can be swung and positioned in the groove of the bottom shell via a pivot. The groove has a sloping horizontal groove at the end where the pivot is located. The width of the sloping horizontal groove is three body lengths of the support foot. The sloping horizontal groove is a fixed angle. In addition, an angle pad is slidably embedded in the horizontal groove on the left and right. The left and right angle pads can move along the sloping horizontal groove to the middle fixed angle of the sloping surface. The angle of the angle pad and the angle of the sloping surface are superimposed to the angle of the support foot, which is aligned with the position of the groove. When the support foot is opened, it touches the angle pad, which restricts the opening angle of the support foot to adjust the tilt angle of the traction seat.

[0015] The bottom of the inclined horizontal groove has a sliding groove that penetrates the bottom shell. The cross section of the angle pad block matches the cross section of the inclined horizontal groove. The inwardly extending limiting foot passes through the sliding groove and has an anti-detachment pad that slides and locks at the end.

[0016] This invention features a unique design, simple structure, stable operation, and controllable traction force. It employs a geared motor to drive a rack and pinion to slide smoothly back and forth in a track, and incorporates a pressure sensor and limit switch to effectively control the traction force and maximum stroke, ensuring safety, especially when used in conjunction with a traction belt. The traction belt further enhances traction efficiency and meets the needs of different groups. In addition to traction, it incorporates various physical therapy factors to serve as an auxiliary means of traction therapy, achieving excellent results. Attached Figure Description

[0017] The invention will be further described below with reference to specific figures:

[0018] Figure 1 Schematic diagram of cervical traction device

[0019] Figure 2 A schematic diagram of a cross-section of a cervical traction device.

[0020] Figure 3 Schematic diagram of cross-section of cervical traction device (II)

[0021] Figure 4 Schematic diagram of cervical traction device

[0022] Figure 5 Exploded view of the electric module

[0023] Figure 6 Exploded view of the support leg

[0024] in

[0025] 1—Traction seat; 11—Top cover; 111—Long slot; 112—Side guard;

[0026] 12—Bottom shell; 121—Slide rail; 122—Mounting plate; 123—Positioning plate; 124—Match;

[0027] 125—Sink groove; 1251—Incline transverse groove; 1252—Chute;

[0028] 2—Traction board; 21—Headrest board; 211—Neck pillow area; 2111—Protrusion;

[0029] 212—Headrest area; 2121—Recessed area; 2122—Soft rubber pad; 213—Mounting groove;

[0030] 22—Support plate; 221—Slot; 2211—Slot; 222—Screw post; 223—Anti-loosening slider;

[0031] 3—Shoulder support; 31—Groove; 32—Clamping rail;

[0032] 4—Electric module; 41—Gear motor; 42—Rack; 421—Push rod; 422—Stroke rod; 43—Gear;

[0033] 5—Electrical control board; 51—Pressure sensor; 52—Limit switch; 53—Pulse electrode plate;

[0034] 6—Traction boss; 61—Hanging ear; 62—Traction belt; 63—Negative ion generator; 64—Phototherapy window;

[0035] 641—Infrared tube sheet; 642—Curved reflector; 643—Transparent panel; 65—Cooling fan;

[0036] 7—ball bearing; 71—raceway;

[0037] 8—Support foot; 81—Swivel shaft; 82—Angle pad; 821—Limit foot; 822—Anti-slip pad; Detailed Implementation

[0038] Reference Figures 1 to 6 A cervical traction device includes a traction seat 1, a traction slide plate 2, and a shoulder support 3, as well as an electric module 4 and an electric control board 5 disposed within the traction seat 1. The traction slide plate 2 is slidably disposed on the surface of the traction seat 1, and the shoulder support 3 is disposed on the end face of the traction seat 1 and can abut against the shoulders of the human body. The traction slide plate 2 is driven by the electric module 4 to change the distance between itself and the shoulder support 3. Wherein:

[0039] The electric module 4 includes a geared motor 41 and a rack 42. A gear 43 locked on the output shaft of the geared motor 41 meshes with the rack 42, driving the rack 42 to move in the slide rail 121 of the traction seat. A push rod 421 is provided with one end of the rack 42 facing upward. The push rod 421 can be inserted into the slot 221 at the bottom of the traction slide plate, driving the traction slide plate 2 to move accordingly. The traction slide plate 2 is used to position the head and achieve traction of the cervical spine.

[0040] The traction seat 1 includes an upper cover 11 and a bottom shell 12. The upper cover 11 has an elongated slot 111 corresponding to the movement trajectory of the push rod 421, and a raceway 71 is provided on the upper surface on both sides of the elongated slot 111. The elongated slot 111 has downward-facing baffles 112 on at least two long sides parallel to the movement trajectory. The bottom surface of the traction slide plate 2 is formed with a screw post 222 that can pass through the elongated slot corresponding to the two baffles of the elongated slot 111. An anti-detachment slider 223 extending into one side of the baffle 112 is locked on the screw post 222. Ball bearings 7 are evenly distributed in the direction corresponding to the raceway 71, so that the traction slide plate 2 is slidably positioned on the upper cover 11.

[0041] Furthermore, the geared motor 41 is suspended and locked to the bottom shell 12 of the traction seat via a mounting plate 122 spanning the rack 42. A slide rail 121 on one side of the bottom shell 12, provided by the mounting plate 122, is formed by two positioning plates 123 locked at intervals on the bottom shell. The two positioning plates 123 form the slide rail for assembling ball bearings. Matching ball bearings 7 and raceways 71 are provided between the rack 42 and the bottom shell 12, the mounting plate 122, and the positioning plates 123. In this example, the two rows of ball bearings 6 on the bottom surface of the rack 42 can abut against the raceway 71 on one side of the bottom shell 12. The section of the rack's upper surface that mates with the mounting plate 122 has a raceway 71, and the section that mates with the positioning plate 123 has two rows of ball bearings 7, corresponding to the ball bearings 7 at the bottom of the mounting plate 122 and the raceway 71 at the bottom of the positioning plate 123. This ensures that both sides of the rack 42 are always supported by ball bearings, reducing friction and ensuring smooth sliding.

[0042] A travel lever 422 is also provided at the end of the rack 42, and two accessible limit switches 52 are correspondingly provided. The two limit switches 52 are directly welded to the electrical control board 5 locked to the bottom shell and are electrically connected. The limit switches 52 are used to control the rack to slide within the designed travel range.

[0043] The traction slide 2 has a double-layer structure, including a headrest plate 21 and a support plate 22 locked together. A slot 221 is located on the bottom of the traction slide 2, specifically on the support plate 22. On the side of the slot away from the shoulder support 3, a slot 2211 is provided on the side of the slot wall. A pressure sensor 51 is inserted into this slot 2211. This pressure sensor 51 can be touched by a push rod 421 and is electrically connected to the electronic control board 5. The pressure sensor 51 determines the magnitude of the traction force. Based on different user groups, a specific traction force value is set via the electronic control board 5. When the pressure sensor reaches this set value, the reduction motor 41 stops operating, and the traction slide 2 remains in place, achieving continuous traction. The duration is set by the time module in the electronic control board.

[0044] The headrest plate 21 of the traction skateboard is longitudinally formed from the shoulder support end into a neck support area 211, a headrest area 212, and a mounting groove 213. The headrest area 212 has an annular recess 2121 to cushion the back of the head. The neck support area 211 has protrusions 2111 on both sides and a recess in the middle that matches the cervical spine. Together with the recess 2121 of the headrest area, it forms a continuous streamlined structure that fits snugly and supports the head and neck, allowing them to relax. A traction boss 6 is provided on the mounting groove 213. The traction boss 6 has hanging loops 61 on both sides, and a traction strap 62 that can wrap around the chin is suspended between the hanging loops 61. By using the traction strap 62 and the two protrusions 2111 on the neck support area, traction points are formed at both the top and bottom, which can greatly improve the efficiency of traction.

[0045] Further refining the design, pulse electrode pads 53 are embedded on the two opposing sides of the neck support area 211 of the headrest plate, providing pulse therapy to both sides of the neck; a heating pad is provided on the back of the pulse pads; a soft rubber pad 2122 is attached to the concave part 2121 of the headrest area to accommodate a wider shape of the back of the head and reduce the feeling of stiffness. A negative ion generator 63 is provided on the traction boss 6, and a phototherapy window 64 is also embedded on the side facing the head, forming a multi-angle comprehensive physiotherapy. In the phototherapy window 64, an infrared tube plate 641, a curved reflector plate 642, and a transparent panel 643 are respectively arranged from the inside to the outside; the negative ion generator 63 and the infrared tube plate 641 are both electrically connected to and controlled by the electronic control board 5. In addition, a cooling fan 65 is also provided in the traction boss 6, and a heat dissipation hole is opened on the side away from the headrest area to expel heat, so that the device can work continuously and for a long time and extend its lifespan.

[0046] The shoulder support 3 features an adjustable design. The bottom shell 12 of the traction seat has grooves 124 formed on both sides along the shoulder width direction. One side of the shoulder support 3 has a groove 31 that matches the end of the traction seat 1. A retaining rail 32 is formed at the opening of this groove 31. The shoulder support 3 is inserted from the side of the traction seat 1, and the retaining rail 32 can slide and engage in the groove 124, forming an adjustable positioning structure. It automatically adjusts according to shoulder width and is not easily slipped out during use.

[0047] The traction seat 1 has an adjustable tilt angle. The bottom shell 12 has support feet 8 on both sides away from the shoulder support 3. The support feet 8 can be swung and positioned in the recess 125 of the bottom shell via a pivot 81. The recess 125 has a sloping horizontal groove 1251 at the end where the pivot 81 is located. The width of the sloping horizontal groove 1251 is three body lengths of the support feet 8. Two angle pads 82 are slidably embedded in the sloping horizontal groove 1251. The two angle pads 82 can move along the sloping horizontal groove 1251 to the position aligned with the recess 125, and are placed on the open support feet 8 to constrain the opening angle of the support feet 8, so as to adjust the tilt angle of the traction seat 1 and meet the traction requirements of different neck curvatures.

[0048] Furthermore, the bottom of the inclined transverse groove 1251 has a sliding groove 1252 that penetrates the bottom shell. The cross-section of the angle pad 82 matches the cross-section of the inclined transverse groove 1251. The inwardly extending limiting foot 821 passes through the sliding groove 1252 and is locked with an anti-detachment pad 822 at the end, so that the anti-detachment pad will not come out. In this example, the inclined transverse groove 1251 itself has a basic inclined surface with an angle of 5 degrees to the horizontal plane. When the support foot 8 swings to its position, it can support the traction seat 1 at a 5-degree angle or a corresponding low inclination. One side of the two angle pads 82 is 5 degrees and matches the inclined transverse groove, and the other side has an inclination surface of 10 degrees and 15 degrees respectively. When selected and placed on the support foot 8, the traction seat can be adjusted to two inclinations of 15 degrees and 20 degrees, or the corresponding medium and high inclinations.

Claims

1. A cervical traction device, comprising a traction seat (1), a traction slide plate (2), and a shoulder support (3), and an electric module (4) and an electric control board (5) disposed within the traction seat (1); the traction slide plate (2) is slidably disposed on the surface of the traction seat (1), and the shoulder support (3) is disposed on the end face of the traction seat (1) and can abut against the shoulders of the human body; the traction slide plate (2) is driven by the electric module (4) to change the distance between itself and the shoulder support (3); characterized in that: The electric module (4) includes a geared motor (41) and a rack (42). The gear (43) locked on the output shaft of the geared motor (41) meshes with the rack (42) to drive the rack (42) to move in the slide (121) of the traction seat. A push rod (421) is provided at one end of the rack (42) facing upward. The push rod (421) can be inserted into the slot (221) at the bottom of the traction slide plate to drive the traction slide plate (2) to move accordingly.

2. The cervical traction device according to claim 1, characterized in that: The traction seat (1) includes an upper cover (11) and a bottom shell (12). The upper cover (11) has a long slot (111) corresponding to the movement trajectory of the push rod (421), and a raceway (71) is provided on the upper surface on both sides of the long slot (111). The long slot (111) has a downward-facing stop (112) on at least two long sides parallel to the movement trajectory. The bottom surface of the traction slide plate (2) is formed with a screw post (222) that can pass through the long slot (111) and an anti-detachment slider (223) that extends into the stop (112) is locked on the screw post (222). Balls (7) are evenly distributed in the direction corresponding to the raceway (71).

3. A cervical traction device according to claim 1 or 2, characterized in that: The geared motor (41) is suspended and locked on the bottom shell (12) of the traction seat via a mounting plate (122) across the rack (42). The slide (121) provided on one side of the mounting plate (122) of the bottom shell (12) is formed by two positioning plates (123) locked at intervals on the bottom shell. There are matching balls (7) and raceways (71) between the rack (42) and the bottom shell (12), the mounting plate (122) and the positioning plate (123).

4. A cervical traction device according to claim 1 or 2, characterized in that: The groove (221) at the bottom of the traction slide (2) has a slot (2211) on the side away from the shoulder support (3). A pressure sensor (51) that can be touched by the push rod (421) is inserted in the slot (2211). The pressure sensor (51) is electrically connected to the control board (5).

5. A cervical traction device according to claim 3, characterized in that: A stroke rod (422) is provided at the end of the rack (42), and two accessible limit switches (52) are provided accordingly. The two limit switches (52) are directly welded to the electrical control board (5) locked to the bottom shell and are electrically connected.

6. A cervical traction device according to claim 1, characterized in that: The bottom shell (12) of the traction seat has grooves (124) formed on both sides along the shoulder width direction. The shoulder support (3) has a groove (31) formed on one side that matches the end of the traction seat (1). A retaining rail (32) is formed at the opening of the groove (31). The shoulder support (3) is inserted from the side of the traction seat (1). The retaining rail (32) can be slidably locked in the groove (124) to form an adjustable positioning structure.

7. A cervical traction device according to claim 1, characterized in that: The traction slide (2) has a double-layer structure, including a headrest plate (21) and a support plate (22) locked together. The headrest plate (21) is longitudinally formed from the shoulder support end to form a neck pillow area (211), a head pillow area (212) and a mounting groove (213). The head pillow area (212) has an annular recess (2121). The neck pillow area (211) has protrusions (2111) on both sides and a recess in the middle that matches the cervical spine. Together with the recess (2121) of the head pillow area, it has a continuous streamlined structure. A traction boss (6) is provided on the mounting groove (213). The traction boss (6) has hanging rope ears (61) on both sides on both sides, and a traction belt (62) that can be wrapped around the chin is suspended between the hanging rope ears (61).

8. A cervical traction device according to claim 7, characterized in that: The headrest board has pulse electrode pads (53) embedded on the two protrusions (2111) facing each other in the neck pillow area (211), and a soft rubber pad (2122) attached to the concave part (2121) of the headrest area; a negative ion generator (63) is provided on the traction boss (6), and a phototherapy window (64) is also embedded on the side facing the head. The phototherapy window (64) is provided with an infrared tube plate (641), a curved reflector plate (642) and a transparent panel (643) from the inside to the outside; the negative ion generator (63) and the infrared tube plate (641) are both electrically connected to the electronic control board (5) and are controlled by the electronic control board (5).

9. A cervical traction device according to claim 1, 2 or 6, characterized in that: The bottom shell (12) of the traction seat is provided with support feet (8) on both sides away from the shoulder support (3). The support feet (8) can be swung and positioned in the groove (125) of the bottom shell through the pivot (81). The groove (125) has a sloping horizontal groove (1251) at the end where the pivot (81) is located. The width of the sloping horizontal groove (1251) is three body lengths of the support foot (8). Two angle pads (82) are slidably embedded in the sloping horizontal groove (1251). The two angle pads (82) can be moved along the sloping horizontal groove (1251) to the position aligned with the groove (125) and placed on the open support foot (8) to constrain the opening angle of the support foot (8) so as to adjust the tilt angle of the traction seat (1).

10. A cervical traction device according to claim 9, characterized in that: The bottom of the inclined horizontal groove (1251) has a sliding groove (1252) that penetrates the bottom shell. The cross section of the angle pad (82) matches the cross section of the inclined horizontal groove (1251). The inwardly extending limiting foot (821) passes through the sliding groove (1252) and is locked with an anti-detachment pad (822) at the end.

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