CN207693572U

CN207693572U - Limit joint angles measuring scale

Info

Publication number: CN207693572U
Application number: CN201720681001.6U
Authority: CN
Inventors: 朱礼胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-13
Filing date: 2017-06-13
Publication date: 2018-08-07
Anticipated expiration: 2027-06-13

Abstract

The utility model discloses a kind of limit joint angles measuring scales, measuring scale ontology including semicircular in shape, measuring scale ontology has angle display board that is arc-shaped and being carved with angle index and the substrate in angle display board lower part is arranged, substrate at least one end is fixedly installed fixed arm, angle display board side is equipped with the backarc body parallel and arc-shaped with angle display board, and arc-shaped gaps are equipped between angle display board and backarc body, being movably equipped with positioned at the circle centre position of angle display board on substrate can be relative to the lever arm of angle display board circuit oscillation, lever arm one end is through in arc-shaped gaps and extending on the outside of angle display board, lever arm leans with angle display board, and the elastic component that lever arm can be made to keep the movement tendency to lean to angle display board is provided between lever arm and backarc body.The utility model has many advantages, such as easy to use, accuracy of reading.

Description

Limit joint angles measuring scale

Technical field

The utility model belongs to medical instruments field more particularly to a kind of limit joint angles measuring scale.

Background technology

Currently, in clinical rehabilitation and rehabilitation teaching process, the variation in order to measure joint angles is required for using joint Angle protractor, but existing joint angles protractor, due to the activity characteristic of lever arm, is usually led during measurement Causing the final number of degrees, there are deviations, so the prior art can have been read using the posture of the measured holding bending for gauger The lever arm of angle protractor can be just decontroled after bending angle numerical value, avoiding the measured from prematurely decontroling lever arm causes to live Swing arm independently rotation and lead to final reading value there are deviation, but this way has two, 1, lead to the measured Limbs peracid, measurement process are laborious；If 2, the measured gauger after bending to maximum angle does not read in time, it is tested Amount person would generally because of the tired of limbs and so that lever arm is returned to a certain distance leads to number of degrees error.

In order to solve the above-mentioned technical problem, people have carried out long-term exploration, such as Chinese patent discloses a kind of joint Angle measurement unit [application number：CN201120210678.4], including the survey of fixation measuring arm, activity measuring arm, central shaft, angle Instrument and display screen are measured, the angel measuring instrument is set to the central shaft, and the display is arranged in one end of the activity measuring arm One end of screen, the activity measuring arm other end and the fixation measuring arm passes through the center axis connection, the activity measurement The background of arm, the fixation measuring arm and the display screen uses transparent material, the display screen to pass through data line and the angle Spend measuring instrument connection, the data line and the activity measuring arm keeping parallelism, the graticule of angle when for measuring.

The mode that said program uses electronical reading reads measurement angle, during gauger's rotary moveable arm i.e. The maximum angle of rotation can be read as the number of degrees are measured, measurement error is reduced with this, although the program improves the accurate of the number of degrees Degree, but subproblem is still had, for example, using soft copy, structure is excessively complicated, and cost input increases, and uses the longevity Life wants low relative to purely mechanic protractor, is easy to be damaged.

Utility model content

The purpose of this utility model is lever arm can be made to be maintained at the measured maximum in view of the above-mentioned problems, providing one kind The limit joint angles measuring scale of bending angle position.

In order to achieve the above objectives, the utility model uses following technical proposal：

A kind of limit joint angles measuring scale, includes the measuring scale ontology of semicircular in shape, and the measuring scale ontology has Angle display board that is arc-shaped and being carved with angle index and substrate in angle display board lower part is set, the substrate is at least One end is fixedly installed fixed arm, and the angle display board side is equipped with the backarc parallel and arc-shaped with angle display board Body, and arc-shaped gaps are equipped between the angle display board and backarc body, the circle of angle display board is located on substrate Being movably equipped at the heart can be relative to the lever arm of angle display board circuit oscillation, and described lever arm one end is through arc-shaped gaps Interior and extend on the outside of angle display board, the lever arm leans with angle display board, and lever arm and backarc body it Between be provided with the elastic component that lever arm can be made to keep the movement tendency to lean to angle display board, and the elastic force group Part includes that one end is fixed on lever arm and along the radial springy elastic component of lever arm, the other end of the elastic component is solid Surely have a sliding shoe, the backarc body be provided in the arc consistent with lever arm moving line close to the side of lever arm and For the sliding slot of sliding shoe sliding, and the sliding shoe is located in sliding groove.

Through the above technical solutions, lever arm is resisted against by elastic component on angle display board, between angle display board With certain frictional force, so that lever arm is not easy change location after by the measured rotation, improve the standard of measurement result Exactness.

In above-mentioned limit joint angles measuring scale, the elastic component is torsional spring structure or arc-shaped Elastic Steel Piece.

In above-mentioned limit joint angles measuring scale, the backarc body is identical with angle display board size, And the angle display board and backarc body is interconnected to Crossed Circle platy structure, and the lever arm by engaging portion It is leant by the effect and angle display board of elastic component.

In above-mentioned limit joint angles measuring scale, the lever arm is provided with limit close to angle display board side Structure, the angle display board are provided with the limit assembly being adapted with position limiting structure close to the side of lever arm.

In above-mentioned limit joint angles measuring scale, the position limiting structure includes that setting is aobvious close to angle in lever arm Show that the limit protrusion of plate side, the limit assembly include several limited steps being uniformly arranged on angle display board and institute The cross section for the limited step stated is in class triangular structure of right angle, and the limited step includes close to the first of angle index Beginning and the transition face for being used to slide past under thrust for lever arm, the limited step is close to angle index Clearing end have be capable of barrier activity arm toward angle index initial extreme direction rotate blocking surface.

In above-mentioned limit joint angles measuring scale, the lever arm is equipped with instruction corresponding with angle index Arrow, the backarc body both ends are connected by engaging portion with angle display board end respectively, and the engaging portion be located at The angle index of initial position flushes or the engaging portion is less than the initial end of angle index.

In above-mentioned limit joint angles measuring scale, the angle index is uniformly distributed setting and angular range is 0- 180 degree, one end that the arc-shaped gaps are connected with engaging portion extends to the lower section of the angle index positioned at initial end, described The other end that arc-shaped gaps are connected with engaging portion is flushed with the angle index positioned at clearing end；Alternatively, the arc-shaped gaps with The connected other end in engaging portion extends to the lower section of the angle index positioned at clearing end.

The utility model limits joint angles measuring scale, has the following advantages compared to the prior art：1, it is provided with instruction Arrow, angle instruction are accurate and visual；2, lever arm will not occur after being rotated by the measured from the first of trend angle index The case where beginning direction rotates, the position i.e. joint flexion angle finally stopped improves the accuracy of measurement；3, it need not be tested Amount person is always maintained at the state of maximum bend angle, improves and measures convenience.

Description of the drawings

Fig. 1 is the front view of the utility model limit joint angles measuring scale；

Fig. 2 is that the utility model limit joint angles measuring scale uses torsional spring structure for the side view of elastic component；

Fig. 3 is the side view that the utility model limit joint angles measuring scale uses elastic steel sheet as elastic component；

Fig. 4 is the rearview of the utility model angle display board；

Fig. 5 is the structural schematic diagram of the utility model limited step；

Fig. 6 is the front view of the utility model backarc body.

Reference numeral：Angle display board 1；Angle index 11；Substrate 2；Fixed arm 3；Backarc body 4；Sliding slot 41；Between arc Gap 5；Lever arm 6；Position limiting structure 61；Limit protrusion 611；Limit assembly 62；Limited step 621；Transition face 6211；Blocking surface 6212；Arrow 63；Elastic component 7；Elastic component 71；Torsional spring structure 711；Elastic steel sheet 712；Sliding shoe 72；Engaging portion 8； Gap ruler 9.

Specific implementation mode

It is the preferred embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figures 1 to 6, the limit joint angles measuring scale of the utility model includes the measuring scale sheet of semicircular in shape Body, measuring scale ontology have angle display board 1 that is arc-shaped and being carved with angle index 11 and are arranged in 1 lower part of angle display board Substrate 2, substrate 2 and angle display board 1 be the overall structure of seamless connection, and at least one end of substrate 2 is fixedly installed fixed arm 3,1 side of angle display board is equipped with the backarc body 4 parallel and arc-shaped with angle display board 1, and angle display board 1 is with after Arc-shaped gaps 5 are equipped between arc body 4, being movably equipped on a substrate 2 positioned at the circle centre position of angle display board 1 can be relative to angle The lever arm 6 of 1 circuit oscillation of display board, 6 one end of lever arm is interior through arc-shaped gaps 5 and extends to 1 outside of angle display board, Lever arm 6 leans with angle display board 1, and be provided between lever arm 6 and backarc body 4 can make lever arm 6 keep to The elastic component 7 for the movement tendency that angle display board 1 leans, and elastic component 7 is fixed on lever arm 6 including one end and edge The other end of the radial springy elastic component 71 of lever arm 6, elastic component 71 is fixed with sliding shoe 72, and backarc body 4 is close to living The side of swing arm 6 is provided with the sliding slot 41 for being in the arc consistent with 6 moving line of lever arm and being slided for sliding shoe 72, and described Sliding shoe 72 be located in sliding groove.

Lever arm is resisted against by elastic component on angle display board, has certain frictional force between angle display board, So that lever arm is not easy change location after by the measured rotation, improves the accuracy of measurement result.

Further, elastic component 71 is torsional spring structure 711 or arc-shaped elastic steel sheet 712, and backarc body 4 and angle Display board size is identical, and angle display board and backarc body 4 are interconnected to Crossed Circle plate knot by engaging portion 8 Structure, and lever arm 6 is leant by the effect of elastic component 71 with angle display board.

Preferably, in order to further ensure the locating effect of lever arm 6, the lever arm 6 of the present embodiment is shown close to angle 1 side of plate is provided with position limiting structure 61, and angle display board 1 is provided with close to the side of lever arm 6 and is adapted with position limiting structure 61 Limit assembly 62.Specifically, position limiting structure 61 includes the limit protrusion being arranged in lever arm 6 close to 1 side of angle display board 611, limit assembly 62 includes several limited steps 621 being uniformly arranged on angle display board 1, and the cross of limited step 621 Section is in class triangular structure of right angle, and limited step 621 includes initial end close to angle index 11 and for for activity The transition face 6211 that arm 6 can slide past under thrust, termination of the limited step 621 close to angle index 11 Hold the blocking surface 6212 that there is the initial extreme direction for capableing of barrier activity arm 6 toward angle index 11 to rotate.It may also be said that this implementation The limit assembly of example is ratchet structure, and limit protrusion be the lock pawl that can be engaged with ratchet, lock pawl forward direction on ratchet, i.e., from The initial end of angle index is movable to clearing end, and reversed, i.e., non-movable from the clearing end of angle index to initial end, this Sample, in measurement process, the measured only need to push or pull on lever arm according to common measurement method, until after maximum angle, Stop force, at this point, blocking of the lever arm due to ratchet limited step in other words, rests on the position of the measured effect It sets, it is all right that gauger need to only read the position of lever arm at this time.Terminate after reading measures, gauger only need to be by lever arm toward rear arc Side is drawn, away from limited step, then rotary moveable arm return to initial end prepare to use next time it is all right.

Preferably, in order to ensure the accuracy of instruction angle, finger corresponding with angle index 11 is equipped on lever arm 6 Show that arrow 63, the top of arrow orthographic projection are affixed on angle index 11, ensures that during measurement, the top of arrow can Always refer to zero distance a certain scale value in angle index 11,4 both ends of backarc body are shown by engaging portion 8 and angle respectively Plate end is connected, and the engaging portion 8 is flushed with the angle index 11 positioned at initial position or the engaging portion 8 is less than angle Spend the initial end of scale 11；It is 0-180 degree that angle index 11, which is uniformly distributed setting and angular range, in order to ensure under scale there are The position that hand is held, it is ensured that measurement angle is since 0 ° when hand joint mobility measures, arc-shaped gaps 5 and engaging portion 8 connected one end extend to the other end being connected with engaging portion 8 positioned at the lower section of the angle index 11 of initial end, arc-shaped gaps 5 It is flushed with the angle index 11 positioned at clearing end；Alternatively, the other end that arc-shaped gaps 5 are connected with engaging portion 8 is extended to positioned at eventually The lower section of the angle index 11 of not-go-end.

Further, it is arranged on substrate 2 for measuring midpoint and matching graduated gap ruler 9, and is provided in gap ruler 9 The ball that can be moved in ruler can be determined the center in aperture by mobile ball, it is impaired to filter out central nervous system Midpoint patient can not be differentiated afterwards and evaluates the prognosis of patient.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although angle display board 1 is used more herein；Angle index 11；Substrate 2；Fixed arm 3；Backarc body 4；It is sliding Slot 41；Arc-shaped gaps 5；Lever arm 6；Position limiting structure 61；Limit protrusion 611；Limit assembly 62；Limited step 621；Transition face 6211；Blocking surface 6212；Arrow 63；Elastic component 7；Elastic component 71；Torsional spring structure 711；Elastic steel sheet 712；Sliding shoe 72；Engaging portion 8；The terms such as gap ruler 9, but it does not preclude the possibility of using other terms.The use of these terms is only to be More easily describe and explain the essence of the utility model；Being construed as any one of the additional limitations is all and this reality It is disagreed with novel spirit.

Claims

1. a kind of limit joint angles measuring scale, includes the measuring scale ontology of semicircular in shape, which is characterized in that the measuring scale Ontology has angle display board (1) that is arc-shaped and being carved with angle index (11) and is arranged in angle display board (1) lower part Substrate (2), the substrate (2) at least one end are fixedly installed fixed arm (3), and described angle display board (1) side is equipped with The backarc body (4) parallel and arc-shaped with angle display board (1), and the angle display board (1) and backarc body (4) Between be equipped with arc-shaped gaps (5), positioned at the circle centre position of angle display board (1), be movably equipped with can be relative to angle on substrate (2) The lever arm (6) of display board (1) circuit oscillation, the lever arm (6) one end is interior through arc-shaped gaps (5) and extends to angle It spends on the outside of display board (1), the lever arm (6) leans with angle display board (1), and lever arm (6) and backarc body (4) Between be provided with the elastic component (7) that lever arm (6) can be made to keep the movement tendency to lean to angle display board (1), and The elastic component (7) includes that one end is fixed on lever arm (6) and along the radial springy elastic component of lever arm (6) (71), the other end of the elastic component (71) is fixed with sliding shoe (72), and the backarc body (4) is close to lever arm (6) Side be provided in the arc consistent with lever arm (6) moving line and the sliding slot (41) that is slided for sliding shoe (72), and institute The sliding shoe (72) stated is located in sliding slot (41).

2. limit joint angles measuring scale according to claim 1, which is characterized in that the elastic component (71) is torsional spring Structure (711) or arc-shaped elastic steel sheet (712).

3. limit joint angles measuring scale according to claim 2, which is characterized in that the backarc body (4) and angle The identical and described angle display board (1) of degree display board (1) size is mutually interconnected with backarc body (4) by engaging portion (8) It is connected into Crossed Circle platy structure, and the lever arm (6) is offseted by the effect of elastic component (71) with angle display board (1) It leans on.

4. limit joint angles measuring scale according to claim 1 or 2 or 3, which is characterized in that the lever arm (6) Angle display board (1) side is provided with position limiting structure (61), the angle display board (1) close to lever arm (6) one Side is provided with the limit assembly (62) being adapted with position limiting structure (61).

5. limit joint angles measuring scale according to claim 4, which is characterized in that the position limiting structure (61) includes The limit protrusion (611) close to angle display board (1) side in lever arm (6) is set, and the limit assembly (62) is if include The dry limited step (621) being uniformly arranged on angle display board (1), and the cross section of the limited step (621) is in class Triangular structure of right angle, and the limited step (621) includes initial end close to angle index (11) and for for work The transition face (6211) that swing arm (6) can slide past under thrust, the limited step (621) is close to angle index (11) clearing end has the blocking surface that the initial extreme direction for capableing of barrier activity arm (6) toward angle index (11) rotates (6212)。

6. limit joint angles measuring scale according to claim 1, which is characterized in that the lever arm (6) is equipped with Arrow (63) corresponding with angle index (11), described backarc body (4) both ends pass through engaging portion (8) and angle respectively It spends display board (1) and holds and be connected, and the engaging portion (8) flushes or described with the angle index (11) for being located at initial position Engaging portion (8) is less than the initial end of angle index (11).

7. limit joint angles measuring scale according to claim 6, which is characterized in that the angle index (11) is uniform Distribution is arranged and angular range is 0-180 degree, and one end that the arc-shaped gaps (5) are connected with engaging portion (8), which extends to, to be located at The lower section of the angle index (11) of initial end, the other end and be located at termination that the arc-shaped gaps (5) are connected with engaging portion (8) The angle index (11) at end flushes；Alternatively, the other end that the arc-shaped gaps (5) are connected with engaging portion (8) extends to and is located at The lower section of the angle index (11) of clearing end.