Double-motor cervical traction instrument

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a double-motor cervical traction instrument. Comprising a pillow shell, the plurality of movable pieces are movably mounted in the pillow shell and are longitudinally arranged and arrayed at the massage opening; the cam mechanism is arranged below the movable pieces and comprises a first cam group, a second cam group and a third cam group which are arranged side by side, the first cam group is in transmission connection with the third cam group, and at least one cam is arranged on each of the first cam group, the second cam group and the third cam group; when the cam rotates, the movable piece is driven to move up and down at the massage opening; the power mechanism is connected with the cam mechanism, comprises a first motor connected with the first cam group and a second motor connected with the second cam group, and is used for driving the cam mechanism to rotate. By adopting a double-motor driving strategy, the massage rule can be adjusted as required, the cervical traction clinical treatment is realized, and the device is small and portable, and has the advantages of low treatment cost and good effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a dual-motor cervical traction instrument. Background Art

[0002] Cervical spondylosis is a disease based on degenerative pathological changes of the intervertebral disc, usually manifested by symptoms such as stiffness and pain in the neck and back, and radiating pain in the upper limbs, which brings inconvenience to the patient's work and life, and requires cervical traction therapy to relieve discomfort. At present, traditional cervical traction treatments mostly choose weighted traction, head suspension traction, wearing head and neck protective gear, sound, light, heat, electromagnetic, low-frequency electrical stimulation and other programs, or the treatment effect is poor, or the cost is high, or you need to queue up at the hospital for registration, etc. Although some traction devices can achieve the effect of neck massage, most of them can only raise and lower the massage head according to the preset rules and cannot be adjusted as needed.

[0003] Therefore, there is an urgent need for a dual-motor cervical traction instrument with low cost, good therapeutic effect and adjustable massage rules. Utility Model Content

[0004] The purpose of the utility model is to provide a dual-motor cervical traction instrument to address the deficiencies of the existing technology. The dual-motor driving strategy is adopted to adjust the massage pattern as needed to achieve clinical cervical traction treatment. The instrument is compact and portable and has the advantages of low treatment cost and good effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dual-motor cervical traction device, comprising:

[0007] A pillow shell, wherein a massage port connected to the inside of the pillow shell is provided at the top of the pillow shell;

[0008] A plurality of movable sheets movably mounted in the pillow shell, the plurality of movable sheets being longitudinally arranged and arranged at the massage opening;

[0009] A cam mechanism is arranged below the plurality of movable sheets, the cam mechanism comprises a first cam group, a second cam group and a third cam group arranged side by side, the first cam group and the third cam group are in transmission connection, the first cam group, the second cam group and the third cam group are each provided with at least one cam, and when the cam rotates, the movable sheet is driven to move up and down at the massage port;

[0010] The power mechanism connected to the cam mechanism comprises a first motor connected to the first cam group and a second motor connected to the second cam group, and is used for driving the cam mechanism to rotate.

[0011] Furthermore, the first cam group is provided with a first rotating shaft, the second cam group is provided with a second rotating shaft, the third cam group is provided with a third rotating shaft, at least one cam is provided on the first rotating shaft, the second rotating shaft and the third rotating shaft, the first motor is connected to the first rotating shaft, and the second motor is connected to the second rotating shaft.

[0012] Furthermore, a driving wheel is provided on the first rotating shaft, and a driven wheel is provided on the third rotating shaft, and the driving wheel is transmission-connected with the driven wheel.

[0013] Furthermore, the driving wheel is connected to the driven wheel via a transmission belt, and the first cam group and the third cam group have the same structure.

[0014] Furthermore, it comprises a base, and the cam mechanism and the power mechanism are installed in the base.

[0015] Furthermore, a group of support rods is provided on the base corresponding to each movable piece, and each group of two support rods is longitudinally arranged at both ends of each movable piece, so that the movable piece can move longitudinally on the support rods.

[0016] Furthermore, a limiting member is arranged above the support rod, a return spring is sleeved on the support rod, and the return spring is located between the limiting member and the movable sheet, so that the movable sheet tends to approach the cam mechanism.

[0017] Furthermore, the movable sheet includes a movable frame and a massage sheet arranged on the movable frame, the movable frame can be movably connected to the two support rods, and the massage sheet is located at the massage port.

[0018] Furthermore, a pulley is provided below each movable frame, and the pulley is in contact with the cam.

[0019] Furthermore, the top of the massage sheet is a concave curved surface.

[0020] Beneficial effects of the utility model:

[0021] The utility model sets a first motor to drive the first cam group, a second motor to drive the second cam group, and the third cam group is connected to the first cam group in a transmission connection, so that the first motor can drive a plurality of movable plates, and the second motor can drive a plurality of movable plates. The user can change the massage pattern of the plurality of movable plates by changing the starting time between the first motor and the second motor, so as to adjust the traction massage on demand; by respectively setting a driving wheel and a driven wheel on the first cam group and the third cam group, and connecting the transmission with a transmission belt, the first cam group and the third cam group with the same structure can lift the movable plates from both ends, and the second cam group located in the middle can lift the movable plates from the middle without interfering with each other; by setting a support rod, the stable movement of the movable plates can be achieved; by setting a reset spring, the reset of the movable plates can be achieved; by setting a pulley, the direct friction between the cam and the movable frame to generate abnormal noise can be avoided; the utility model adopts a dual-motor driving strategy so that the massage pattern can be adjusted on demand, so as to realize the clinical treatment of cervical traction, is compact and portable, and has the advantages of low treatment cost and good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 It is a structural schematic diagram of a dual-motor cervical traction device of the utility model;

[0023] Attached Figure 2 It is a schematic diagram of the exploded structure of the dual-motor cervical traction device of the utility model;

[0024] Attached Figure 3 It is a structural schematic diagram of the cam mechanism and the power mechanism of the utility model;

[0025] Attached Figure 4 It is a structural schematic diagram of the movable sheet, the support rod and the return spring of the utility model;

[0026] Markings in the figure: 1- pillow shell, 110- massage port; 2- movable plate, 210- movable frame, 220- massage plate, 230- pulley; 3- cam mechanism, 310- first cam group, 311- first rotating shaft, 312- driving wheel, 320- second cam group, 321- second rotating shaft, 330- third cam group, 331- third rotating shaft, 332- driven wheel, 340- cam, 350- transmission belt; 4- power mechanism, 410- first motor, 420- second motor; 5- base; 6- support rod; 7- limiter; 8- reset spring. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See attached Figure 1 To Attachment Figure 4 , the figure shows a specific embodiment of a dual-motor cervical traction device provided by the utility model.

[0032] See attached Figure 1 and attached Figure 2 , dual motor cervical traction device includes:

[0033] The pillow shell 1 has a massage port 110 at the top thereof connected to the inside of the pillow shell 1;

[0034] A plurality of movable sheets 2 are movably mounted in the pillow shell 1, and the plurality of movable sheets 2 are longitudinally arranged and arranged at the massage opening 110;

[0035] A cam mechanism 3 is arranged below the plurality of movable sheets 2, the cam mechanism 3 comprises a first cam group 310, a second cam group 320 and a third cam group 330 arranged side by side, the first cam group 310 and the third cam group 330 are transmission-connected, each of the first cam group 310, the second cam group 320 and the third cam group 330 is provided with at least one cam 340, and when the cam 340 rotates, it drives the movable sheet 2 to move up and down at the massage port 110;

[0036] The power mechanism 4 connected to the cam mechanism 3 includes a first motor 410 connected to the first cam group 310 and a second motor 420 connected to the second cam group 320, and is used to drive the cam mechanism 3 to rotate.

[0037] See attached Figure 2 In the above embodiment, the first cam group 310, the second cam group 320, and the third cam group 330 are arranged in sequence, and the first cam group 310 and the third cam group 330 lift the same movable sheet 2 from both ends, while the second cam group 320 lifts other movable sheets 2. In this embodiment, there are 5 movable sheets 2, which are arranged longitudinally and arranged at the massage port 110. The first cam group 310 and the third cam group 330 lift the first, third, and fifth movable sheets 2 at both ends, and the second cam group 320 lifts the second and fourth movable sheets 2 in the middle. Specifically, the first motor 410 and the second motor 420 can be controlled to start and stop individually, or the motor speed can be adjusted, such as setting different control switches or using a mobile terminal to control the start and stop speed, so as to achieve a multi-mode massage effect.

[0038] See attached Figure 3In the above embodiment, the first cam group 310 is provided with a first rotating shaft 311, the second cam group 320 is provided with a second rotating shaft 321, the third cam group 330 is provided with a third rotating shaft 331, and at least one cam 340 is provided on the first rotating shaft 311, the second rotating shaft 321 and the third rotating shaft 331, the first motor 410 is connected to the first rotating shaft 311, and the second motor 420 is connected to the second rotating shaft 321. In the embodiment, three cams 340 are respectively provided on the first cam group 310 and the third cam group 330, and the cams 340 are arranged at intervals. Two cams 340 are provided on the second cam group 320, and each rotating shaft is fixedly arranged with the cams 340. When the first motor 410 is started, the first rotating shaft 311 rotates and drives the cams 340 on the first rotating shaft 311 to rotate. The third rotating shaft 331 is transmission-connected with the first rotating shaft 311, so the third rotating shaft 331 drives the cams 340 on the third rotating shaft 331 to rotate. The cams 340 on the first rotating shaft 311 and the third rotating shaft 331 jointly lift the first, third and fifth movable pieces 2; when the second motor 420 is started, the second rotating shaft 321 rotates and drives the cams 340 on the second rotating shaft 321 to rotate and lift the second and fourth movable pieces 2. Optionally, there may be an angle difference between the cams 340 on the same rotating shaft, so as to achieve staggered lifting of the first, third, and fifth movable pieces 2, or staggered lifting of the second and fourth movable pieces 2.

[0039] See attached Figure 3 In the above embodiment, a driving wheel 312 is further provided on the first rotating shaft 311, and a driven wheel 332 is further provided on the third rotating shaft 331, and the driving wheel 312 is connected to the driven wheel 332 in transmission. The driving wheel 312 is connected to the driven wheel 332 through a transmission belt 350, and the first cam group 310 and the third cam group 330 have the same structure. In the embodiment, the driving wheel 312 and the driven wheel 332 are of the same size. When the transmission belt 350 drives the rotation, the rotation speeds of the first cam group 310 and the third cam group 330 can be ensured to be consistent, thereby preventing the movable sheet 2 from tilting or misaligning during the lifting process. In the embodiment, the second rotating shaft 321 of the second cam group 320 passes through the middle space of the annular transmission belt 350.

[0040] See attached Figure 2 In the above embodiment, a base 5 is included, and the cam mechanism 3 and the power mechanism 4 are installed in the base 5. In the embodiment, the first cam group 310 and the third cam group 330 are suspended on the side wall of the base 5 so that the cams 340 thereon are suspended in the air, the first cam group 310 and the third cam group 330 are connected by an annular transmission belt 350, and the second rotating shaft 321 of the second cam group 320 passes through the middle space of the annular transmission belt 350 and is suspended on the side wall of the base 5, so that the first cam group 310, the second cam group 320 and the third cam group 330 will not interfere with each other.

[0041] See attached Figure 2 In the above embodiment, a group of support rods 6 is provided on the base 5 corresponding to each movable piece 2, and each group of two support rods 6 is longitudinally arranged at both ends of each movable piece 2, so that the movable piece 2 can move longitudinally on the support rods 6. In the embodiment, 5 groups of 10 support rods 6 are vertically arranged on the base 5, and each group of two support rods 6 passes through the through holes at both ends of the movable piece 2, which are used to limit the moving direction of the movable piece 2, so that the movement of the movable piece 2 is smoother and more stable.

[0042] See attached Figure 2 In the above embodiment, a limiter 7 is arranged above the support rod 6, a return spring 8 is sleeved on the support rod 6, and the return spring 8 is located between the limiter 7 and the movable sheet 2, so that the movable sheet 2 tends to approach the cam mechanism 3. In the embodiment, the limiter 7 is fixed to the top of the support rod 6, and is used to block and limit the highest position of the longitudinal movement of the movable sheet 2. The return spring 8 between the limiter 7 and the movable sheet 2 is in a compressed state, pressing the movable sheet 2 downward, so that the movable sheet 2 moves downward to abut against the cam 340. The stable contact prevents the movable sheet 2 from making abnormal noises, and the movable sheet 2 will not fall out when being carried or inverted.

[0043] See attached Figure 4 In the above embodiment, the movable sheet 2 includes a movable frame 210 and a massage sheet 220 disposed on the movable frame 210, the movable frame 210 is movably connected to the two support rods 6, and the massage sheet 220 is located at the massage port 110. In the embodiment, the massage sheet 220 is longitudinally arranged in a sheet shape, wherein the top of the massage sheet 220 is a concave curved surface. Similarly, a concave curved surface is formed in the middle position of the top of the pillow shell 1 to adapt to the shape of the neck, and the two cooperate to support the neck to achieve physiological traction.

[0044] See attached Figure 4 In the above embodiment, a pulley 230 is further provided under each movable frame 210, and the pulley 230 abuts against the cam 340. In the embodiment, since the first, third, and fifth movable pieces 2 are lifted up by the first cam group 310 and the third cam group 330, two pulleys 230 are provided under the first, third, and fifth movable pieces 2, and the second and fourth movable pieces 2 are lifted up from the middle position by the second cam group 320, so a pulley 230 is provided under the middle position of the second and fourth movable pieces 2. The provision of the pulley 230 avoids wear or abnormal noise caused by direct friction between the movable frame 210 and the cam 340, thereby increasing the product life and improving the user experience.

[0045] In summary, the present embodiment provides a dual-motor cervical traction instrument, by setting a first motor 410 to drive the first cam group 310, a second motor 420 to drive the second cam group 320, and the third cam group 330 is connected to the first cam group 310 in transmission, so that the first motor 410 can drive a plurality of movable plates 2, and the second motor 420 can drive a plurality of movable plates 2. The user can change the massage pattern of the plurality of movable plates 2 by changing the start time between the first motor 410 and the second motor 420, so as to adjust the traction massage as needed; by setting a driving wheel 312 and a driven wheel 314 on the first cam group 310 and the third cam group 330 respectively, 32, and use a transmission belt 350 to connect the transmission, so that the first cam group 310 and the third cam group 330 of the same structure can lift the movable plate from both ends, and the second cam group 320 in the middle can lift the movable plate 2 from the middle without interfering with each other; the support rod 6 is provided to achieve stable movement of the movable plate 2; the reset spring 8 is provided to achieve the reset of the movable plate 2; the pulley 230 is provided to avoid abnormal noise caused by direct friction between the cam 340 and the movable frame 210; this embodiment adopts a dual-motor drive strategy so that the massage pattern can be adjusted as needed, so as to realize clinical cervical traction treatment, which is compact and portable and has the advantages of low treatment cost and good effect.

[0046] The embodiment described above is only one of the more preferred specific embodiments of the present invention. Common changes and substitutions made by technicians in this field within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-motor cervical traction device, characterized in that: include: A pillow shell (1), wherein a massage port (110) connected to the inside of the pillow shell (1) is provided at the top of the pillow shell (1); A plurality of movable sheets (2) movably mounted in the pillow shell (1), the plurality of movable sheets (2) being arranged longitudinally and arranged at the massage opening (110); a cam mechanism (3) disposed below the plurality of movable sheets (2), the cam mechanism (3) comprising a first cam group (310), a second cam group (320) and a third cam group (330) disposed side by side, the first cam group (310) and the third cam group (330) being transmission-connected, the first cam group (310), the second cam group (320) and the third cam group (330) each being provided with at least one cam (340), and when the cam (340) rotates, it drives the movable sheet (2) to move up and down at the massage port (110); A power mechanism (4) connected to the cam mechanism (3) comprises a first motor (410) connected to the first cam group (310) and a second motor (420) connected to the second cam group (320), and is used to drive the cam mechanism (3) to rotate.

2. A dual-motor cervical traction device according to claim 1, characterized in that: The first cam group (310) is provided with a first rotating shaft (311), the second cam group (320) is provided with a second rotating shaft (321), the third cam group (330) is provided with a third rotating shaft (331), at least one cam (340) is provided on each of the first rotating shaft (311), the second rotating shaft (321) and the third rotating shaft (331), the first motor (410) is connected to the first rotating shaft (311), and the second motor (420) is connected to the second rotating shaft (321).

3. A dual-motor cervical traction device according to claim 2, characterized in that: A driving wheel (312) is also provided on the first rotating shaft (311), and a driven wheel (332) is also provided on the third rotating shaft (331). The driving wheel (312) is transmission-connected to the driven wheel (332).

4. A dual-motor cervical traction device according to claim 3, characterized in that: The driving wheel (312) and the driven wheel (332) are connected via a transmission belt (350), and the first cam group (310) and the third cam group (330) have the same structure.

5. A dual-motor cervical traction device according to any one of claims 1 to 4, characterized in that: It comprises a base (5), wherein the cam mechanism (3) and the power mechanism (4) are installed in the base (5).

6. A dual-motor cervical traction device according to claim 5, characterized in that: A group of support rods (6) is provided on the base (5) corresponding to each movable piece (2), and each group of two support rods (6) is longitudinally arranged at both ends of each movable piece (2), so that the movable piece (2) can move longitudinally on the support rods (6).

7. A dual-motor cervical traction device according to claim 6, characterized in that: A limiting member (7) is arranged above the support rod (6), a return spring (8) is sleeved on the support rod (6), and the return spring (8) is located between the limiting member (7) and the movable sheet (2), so that the movable sheet (2) tends to approach the cam mechanism (3).

8. A dual-motor cervical traction device according to claim 7, characterized in that: The movable sheet (2) comprises a movable frame (210) and a massage sheet (220) arranged on the movable frame (210); the movable frame (210) is movably connected to the two support rods (6); and the massage sheet (220) is located at the massage port (110).

9. A dual-motor cervical traction device according to claim 8, characterized in that: A pulley (230) is also provided below each movable frame (210), and the pulley (230) is in contact with the cam (340).

10. A dual-motor cervical traction device according to claim 8, characterized in that: The top of the massage sheet (220) is a concave curved surface.

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