A distraction angle measuring device for a distractor

Abstract

The application discloses a traction angle measuring device of a tractor, which comprises a guiding unit, a positioning unit, a rotating unit, a first traction angle measuring assembly and a second traction angle measuring assembly. The positioning unit guides and positions the traction rope introduced along a first direction to be introduced along a second direction. The guiding unit is arranged on the positioning unit and can swing along a vertical plane relative to the positioning unit along with the traction rope. The first traction angle measuring assembly is arranged on the guiding unit and measures the traction angle of the traction rope in the vertical plane according to the swing angle of the guiding unit along the vertical plane. The positioning unit is arranged on the rotating unit, and the second traction angle measuring assembly is coaxially arranged on the positioning unit with the rotating shaft of the rotating unit. The positioning unit rotates relative to the rotating unit along with the guiding unit and the traction rope, and the second traction angle measuring assembly measures the traction angle of the traction rope in the horizontal plane according to the rotation angle of the positioning unit. The application can measure the traction angles of two planes of the tractor, and has the advantages of simple structure, accurate measurement and the like.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to a traction angle measuring device of a traction device. BACKGROUND

[0002] With the progress of science and technology, the popularity of electronic equipment and the change of people's learning, living and working mode, cervical and lumbar diseases have become common diseases affecting people's life, and the incidence rate is increasing year by year. At present, the physical therapy method commonly used in hospitals is traction therapy.

[0003] The traction device used in traction therapy includes portable traction device, multifunctional traction bed and electric traction seat. Such traction equipment either has no traction angle measuring function or has single measuring function, and can only measure the traction angle in one plane, which is not conducive to the traction recovery of patients and the pathological research of doctors. A low-cost, simple-structured measuring device capable of accurately measuring the traction angle of the traction device in different planes is needed. SUMMARY

[0004] In view of the problems existing in the prior art, the purpose of the present application is to provide a measuring device capable of accurately measuring the traction angle of the traction device in multiple planes.

[0005] To achieve the above-mentioned purpose, the traction angle measuring device of the present application comprises a guide unit, a positioning unit, a rotating unit, a first traction angle measuring assembly and a second traction angle measuring assembly. The positioning unit guides and positions the traction rope introduced along a first direction to be introduced along a second direction. The guide unit is arranged on the positioning unit and can swing along a vertical plane relative to the positioning unit along with the traction rope. The first traction angle measuring assembly is arranged on the guide unit and measures the traction angle of the traction rope in the vertical plane according to the swing angle of the guide unit along the vertical plane. The positioning unit is arranged on the rotating unit, and the second traction angle measuring assembly is coaxially arranged on the positioning unit with the rotating shaft of the rotating unit. The positioning unit rotates relative to the rotating unit along with the guide unit and the traction rope, and the second traction angle measuring assembly measures the traction angle of the traction rope in the horizontal plane according to the rotation angle of the positioning unit.

[0006] Further, the positioning unit comprises a pulley block and a positioning plate. The pulley block is arranged on the positioning plate, and the pulley block comprises a guide wheel and a positioning wheel. The traction rope passes through the guide wheel along the vertical direction, passes through the positioning wheel along the horizontal direction under the guidance of the guide wheel, and is introduced along the horizontal direction under the clamping and positioning of the positioning wheel.

[0007] Further, the guide unit is a guide sheet, and the guide sheet is provided with a through hole through which the traction rope passes.

[0008] Further, the first traction angle measuring assembly comprises a rotary encoder, a shaft coupling and a fixing base, the shaft coupling is arranged in a horizontal direction, one end of the shaft coupling is fixed on the positioning unit through the guide unit, the other end of the shaft coupling is connected with a code disc shaft of the rotary encoder, a shell of the rotary encoder is fixed on the guide unit through the fixing base, and the vertical plane traction angle of the traction rope is measured by collecting the vertical plane swing angle of the guide unit through the rotary encoder.

[0009] Further, the rotary unit comprises a bearing fixing base and a shaft ring, the positioning unit is arranged on an inner ring of the shaft ring, an outer ring of the shaft ring is arranged on the bearing fixing base, and the inner ring of the shaft ring rotates relative to the outer ring of the shaft ring to drive the positioning unit to rotate relative to the rotary unit.

[0010] Further, the second traction angle measuring assembly comprises a rotary encoder, a shaft coupling and a fixing base, the shaft coupling is arranged in a vertical direction and coaxial with a rotating shaft of the rotary unit, one end of the shaft coupling is fixed on the positioning unit, the other end of the shaft coupling is connected with a code disc shaft of the rotary encoder, a shell of the rotary encoder is fixed on the rotary unit through the fixing base, and the horizontal plane traction angle of the traction rope is measured by collecting the rotation angle of the positioning unit through the rotary encoder.

[0011] Further, the traction rope passes through the bearing fixing base and the shaft ring in a vertical direction and then winds around the guide wheel.

[0012] Further, the guide piece is U-shaped, the guide piece is arranged on the positioning unit through a pin shaft and the shaft coupling, and the guide piece can swing up and down around the pin shaft and the shaft coupling.

[0013] The present application can measure the vertical plane and horizontal plane traction angle of the traction device through the cooperation of the guide unit, the positioning unit, the rotary unit, the first traction angle measuring assembly and the second traction angle measuring assembly, and has the advantages of simple structure, low cost and accurate traction angle measurement.

[0014] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 Structure diagram of a traction angle measuring device of a tractor according to an embodiment of the present application;

[0017] Figure 2 Structure diagram of a traction angle measuring device of a tractor according to an embodiment of the present application; Figure 1 Structure diagram of a traction angle measuring device of a tractor according to an embodiment of the present application;

[0018] Figure 3 、 Figure 4 Structure diagram of a traction angle measuring device of a tractor according to an embodiment of the present application; DETAILED DESCRIPTION

[0019] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art.

[0020] In the description of the present application, it is necessary to state that, unless explicitly defined and limited otherwise, the term "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected, it can be mechanically connected, or electrically connected, it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0021] The terms "top", "bottom", "above", "under", "on", "left-right direction", "up-down direction" used throughout the description are relative positions of components of the device, for example, relative positions of top and bottom substrates inside the device. It can be understood that the device is multifunctional, regardless of their orientation in space.

[0022] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Therefore, the features of "first", "second" defined can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0024] As Figure 1As shown, the traction angle measuring device of the traction device of the present application comprises a guiding unit 1, a positioning unit 2, a rotating unit 3, a first traction angle measuring assembly 4 and a second traction angle measuring assembly 5, the positioning unit 2 guides the traction rope 6 introduced along a first direction to be positioned to be introduced along a second direction, the guiding unit 1 is arranged on the positioning unit 2 and can swing along a vertical plane relative to the positioning unit 2 with the traction rope 6; the first traction angle measuring assembly 4 is arranged on the guiding unit 1 and measures the traction angle of the traction rope 6 in a vertical plane according to the swing angle of the guiding unit 1 along the vertical plane; the positioning unit 2 is arranged on the rotating unit 3, the second traction angle measuring assembly 5 is coaxially arranged on the positioning unit 2 with the rotating shaft of the rotating unit 3, the positioning unit 2 rotates with the guiding unit 1 and the traction rope 6 relative to the rotating unit 3, and the second traction angle measuring assembly 5 measures the traction angle of the traction rope 6 in a horizontal plane according to the rotation angle of the positioning unit 2. The change of the traction angle of the traction rope can drive the guiding piece to swing up and down and / or the positioning unit 2 to rotate relative to the rotating unit 3, and the data collected by the first traction angle measuring assembly 4 and the second traction angle measuring assembly 5 can measure the traction angle in the horizontal plane and the vertical plane of the traction rope.

[0025] As shown, Figure 4 The positioning unit 2 comprises a pulley block and a positioning plate, the pulley block is arranged on the positioning plate, the pulley block comprises a guiding wheel 21 and a positioning wheel 22, the positioning plate comprises a first positioning plate 23 and a second positioning plate 24 arranged oppositely, the pulley block is fixedly installed between the first positioning plate 23 and the second positioning plate 24, the traction rope 6 passes through the guiding wheel 21 along a vertical direction, passes through the positioning wheel 22 along a horizontal direction under the guiding action of the guiding wheel 21, and is introduced along a horizontal direction under the clamping and positioning of the positioning wheel 22. The traction rope of the traction device can be introduced to the required traction position outside through the traction angle measuring device by the pulley block.

[0026] In an embodiment of the present application, the guiding unit 1 is a guiding piece, and a through hole is arranged on the guiding piece for the traction rope 6 to pass through. The guiding piece is horizontally installed on the front side of the first positioning plate 23 and the second positioning plate 24, and the traction rope introduced from the positioning wheel 22 between the first positioning plate 23 and the second positioning plate 23 passes through the guiding piece and is introduced to the traction position outside, such as the cervical vertebra or lumbar vertebra position of a human body, etc. The introduction end of the traction rope passes through the through hole of the guiding piece, which can not only ensure that the traction rope can be conveniently introduced from the measuring device to the outside, but also can drive the guiding piece and / or the positioning unit to move by the driving force of the change of the traction angle of the traction rope, so as to convert the traction angle measurement of the traction rope into the angle measurement of the guiding piece and the positioning unit.

[0027] As shown, Figure 2 and 3As shown in the figure, the first traction angle measuring assembly 4 comprises a rotary encoder 41, a coupling 42 and a fixing seat 43. The coupling 42 is arranged in the horizontal direction, one end of the coupling 42 is fixed on the positioning unit 2 through the guide unit 1, the other end of the coupling 42 is connected with the code disc shaft of the rotary encoder 41, the shell of the rotary encoder 41 is fixed on the guide unit 1 through the fixing seat 43, and the vertical plane swing angle of the guide unit 1 is collected by the rotary encoder 41 to measure the traction angle of the traction rope 6 in the vertical plane. In actual application, the fixing seat 43 is U-shaped and is fixedly installed on one side plane of the guide sheet in the horizontal direction.

[0028] In an embodiment of the present application, the guide sheet is U-shaped, and the opposite two plates of the guide sheet are arranged on the first positioning plate 23 and the second positioning plate 24 through the pin shaft 44 and the coupling 42 respectively. When the traction rope 6 swings up and down, the guide sheet can swing up and down around the pin shaft 44 and the coupling 42. The rotary encoder 41 can measure the up-and-down swing angle of the guide sheet, and then the traction angle of the traction rope 6 in the vertical plane can be directly obtained.

[0029] As shown in the figure, Figure 2 and 4 As shown in the figure, the rotary unit 3 comprises a bearing fixing seat 31 and a shaft ring 32. The positioning unit 2 is arranged on the inner ring of the shaft ring 32, the outer ring of the shaft ring 32 is arranged on the bearing fixing seat 31, and the inner ring of the shaft ring 32 rotates relative to the outer ring of the shaft ring 32 to drive the positioning unit 2 to rotate relative to the rotary unit 3. In actual application, the first positioning plate 23 and the second positioning plate 24 of the positioning unit 2 are fixed relative to the mounting base 33, the positioning unit 2 is fixedly installed on the inner ring of the bearing 32 through the mounting base 33, and the positioning unit 2 can rotate relative to the rotary unit 3 when the traction rope swings left and right in the horizontal plane.

[0030] The second traction angle measuring assembly 5 comprises a rotary encoder 51, a coupling 52 and a fixing seat 53. The coupling 52 is arranged in the vertical direction and is coaxial with the rotating shaft of the rotary unit 3. One end of the coupling 52 is fixed on the positioning unit 2, the other end of the coupling 52 is connected with the code disc shaft of the rotary encoder 51, the shell of the rotary encoder 51 is fixed on the rotary unit 3 through the fixing seat 53, and the rotation angle of the positioning unit 2 is collected by the rotary encoder 51 to measure the traction angle of the traction rope 6 in the horizontal plane. In actual application, the fixing seat 53 is V-shaped and is fixedly installed on the bearing fixing seat 31 in the vertical direction.

[0031] In an embodiment of the present application, the traction rope 6 passes around the guide wheel 21 after passing through the bearing fixing seat 31 and the shaft ring 32 in the vertical direction, which not only ensures that the traction rope can be led out to the outside of the measuring device without interference, but also makes full use of the installation space, so that the structure of the entire measuring device is more compact.

[0032] In summary, the present application can measure the traction angle in the vertical plane and the horizontal plane of the tractor under the cooperation of the guide unit, the positioning unit, the rotating unit, the first traction angle measuring assembly and the second traction angle measuring assembly, and has the advantages of simple structure, low cost and accurate traction angle measurement.

[0033] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0034] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is indicated only by the appended claims.

Claims

1. A distraction angle measuring device for a distractor, characterized by, The device comprises a guide unit, a positioning unit, a rotating unit, a first traction angle measuring assembly and a second traction angle measuring assembly. The positioning unit guides the traction rope introduced along a first direction to be positioned to be introduced along a second direction. The guide unit is arranged on the positioning unit and can swing along a vertical plane relative to the positioning unit with the traction rope. The first traction angle measuring assembly is arranged on the guide unit to measure the traction angle of the traction rope in the vertical plane according to the swing angle of the guide unit along the vertical plane. The positioning unit is arranged on the rotating unit. The second traction angle measuring assembly is coaxially arranged on the positioning unit with the rotating shaft of the rotating unit. The positioning unit rotates relative to the rotating unit with the guide unit and the traction rope. The second traction angle measuring assembly measures the traction angle of the traction rope in the horizontal plane according to the rotation angle of the positioning unit. The positioning unit comprises a pulley block and a positioning plate. The pulley block is arranged on the positioning plate. The pulley block comprises a guide wheel and a positioning wheel. The traction rope passes through the guide wheel along a vertical direction, passes through the positioning wheel along a horizontal direction under the guide action of the guide wheel, and is introduced along a horizontal direction under the clamping and positioning of the positioning wheel.

2. The draw angle measuring device of claim 1, wherein, The guide unit is a guide sheet. The guide sheet is provided with a through hole for the traction rope to pass through.

3. The draw angle measuring device of claim 2, wherein, The first traction angle measuring assembly comprises a rotary encoder, a shaft coupling and a fixing seat. The shaft coupling is arranged along a horizontal direction. One end of the shaft coupling is fixed on the positioning unit through the guide unit. The other end of the shaft coupling is connected with a code disc shaft of the rotary encoder. The shell of the rotary encoder is fixed on the guide unit through the fixing seat. The traction angle of the traction rope in the vertical plane is measured by collecting the swing angle of the guide unit along the vertical plane through the rotary encoder.

4. The draw angle measuring device of claim 1, wherein, The rotating unit comprises a bearing fixing seat and a shaft ring. The positioning unit is arranged on the inner ring of the shaft ring. The outer ring of the shaft ring is arranged on the bearing fixing seat. The inner ring of the shaft ring rotates relative to the outer ring of the shaft ring to drive the positioning unit to rotate relative to the rotating unit.

5. The draw angle measuring device of claim 1, wherein, The second traction angle measuring assembly comprises a rotary encoder, a shaft coupling and a fixing seat. The shaft coupling is arranged along a vertical direction and coaxially arranged with the rotating shaft of the rotating unit. One end of the shaft coupling is fixed on the positioning unit. The other end of the shaft coupling is connected with a code disc shaft of the rotary encoder. The shell of the rotary encoder is fixed on the rotating unit through the fixing seat. The traction angle of the traction rope in the horizontal plane is measured by collecting the rotation angle of the positioning unit through the rotary encoder.

6. The draw angle measuring device of claim 4, wherein, The traction rope passes through the bearing fixing seat and the shaft ring along a vertical direction and then passes through the guide wheel.

7. The draw angle measuring device of claim 3, wherein The guide sheet is U-shaped. The guide sheet is arranged on the positioning unit through a pin shaft and the shaft coupling. The guide sheet can swing up and down around the pin shaft and the shaft coupling.

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