Protractor convenient to read

Abstract

The utility model discloses a protractor convenient to read, which comprises a protractor plate, a central shaft barrel is fixedly arranged in the middle of a transverse plate of the protractor plate, and the middle of the central shaft barrel is hollow. According to the protractor convenient to read, the angle measuring swing sleeve plate is arranged, the angle measuring swing sleeve plate swings by taking the central shaft barrel as a central angle, and the measuring swing needle in the angle measuring swing sleeve plate is aligned to and covers an angle line needing to be measured, so that direct reading can be performed through the reading pointed by the measuring swing needle; the extension ruler sleeve plate is arranged at the other end of the angle measuring swing sleeve plate, and the extension ruler sleeve plate and the extension butt joint ruler plate are spliced for use, so that required line segments are drawn on the right side edges of the extension ruler sleeve plate and the extension butt joint ruler plate by measuring the reading angle of the swing needle; therefore, required angle lines can be drawn quickly and conveniently, and the practicability and accuracy of the protractor are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to angle measuring device technical field, concretely is an angle measuring device convenient for reading. BACKGROUND

[0002] The angle measuring device is a drawing tool, and common materials are plastic or iron. The angle measuring device can draw the required angle according to the requirement, and is often used together with a compass. However, the reading of the existing angle measuring device is performed through the innumerable extension lines on the plastic plate, which is extremely troublesome and prone to incorrect reading. In addition, the angle measuring device is inconvenient when drawing an angle line. Therefore, the angle measuring device convenient for reading is provided to conveniently and quickly read the required angle to be measured and to conveniently draw the required angle line. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides an angle measuring device convenient for reading, which solves the problems in the background.

[0004] To achieve the above object, the utility model provides the following technical scheme: an angle measuring device convenient for reading, comprising an angle ruler plate, a central shaft cylinder is fixedly arranged at the middle part of the horizontal plate of the angle ruler plate, the middle part of the central shaft cylinder is arranged in a hollow manner, an extension ruler sleeve plate is movably sleeved on the surface of the central shaft cylinder, an extension butt joint ruler plate is spliced at the tail end of the extension ruler sleeve plate, an angle swinging sleeve plate is fixedly arranged at the top of the extension ruler sleeve plate, the middle part of the angle swinging sleeve plate is arranged in a hollow manner, and a measuring pendulum is fixedly connected in the hollow groove of the angle swinging sleeve plate, and the right side of the extension ruler sleeve plate is on the same straight line as the measuring pendulum.

[0005] Preferably, the end of the extension butt joint ruler plate is fixedly connected with an insertion butt joint block, one end of the insertion butt joint block is inserted into the interior of the extension ruler sleeve plate, a clamping groove is formed in the side surface of the insertion butt joint block, a pushing bolt rod is slidably inserted into the side surface of the splicing position of the extension ruler sleeve plate and the extension butt joint ruler plate, an inner clamping piece is fixedly arranged at the end of the pushing bolt rod, the surface of the inner clamping piece and the surface of the insertion butt joint block are provided with inclined surfaces that are matched with each other, the inclined surface of the inner clamping piece is inserted into the clamping groove formed in the side surface of the insertion butt joint block, a stable sleeve plate is slidably sleeved on the surface of the pushing bolt rod, the stable sleeve plate and the extension ruler sleeve plate are fixedly bonded by glue, a rectangular compression spring is sleeved on the surface of the pushing bolt rod, and the two ends of the rectangular compression spring are fixedly connected with the inner wall of the stable sleeve plate and the surface of a pressing inner disc, respectively, the inner ring of the pressing inner disc is fixedly sleeved on the surface of the pushing bolt rod, and a pulling cap is arranged at the outer end of the pushing bolt rod.

[0006] Preferably, the inside of the transverse plate of the protractor plate is fixedly provided with a resistance transparent arc plate, the side of the protractor swing sleeve plate is fixedly provided with an internal thread sleeve cap barrel, the inner wall of the internal thread sleeve cap barrel is threadedly sleeved with a push cap tube, and the tail end of the push cap tube is in abutting contact with the surface of the resistance transparent arc plate.

[0007] Preferably, the other end of the protractor swing sleeve plate is fixedly provided with an outer protective sliding piece, the arc-shaped inner wall of the outer protective sliding piece is in sliding contact with the arc-shaped outer edge of the protractor plate, and the top surface of the outer protective sliding piece is fixedly provided with a hand pinching cap.

[0008] The utility model provides a protractor convenient for reading, which has the following beneficial effects:

[0009] (1), the protractor convenient for reading, through the setting protractor swing sleeve plate, with the protractor swing sleeve plate as the center angle swing with the center shaft barrel, the measuring pendulum needle in its protractor swing sleeve plate is aimed at the angle line required to be measured, and the reading of the measuring pendulum needle can be directly read, the misreading of the overlapping measurement line on a large number of scale lines on the contrast ruler is avoided, and the angle can be accurately and quickly measured. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a whole structure schematic view of the utility model;

[0011] Figure 2 It is a local structure dismounting schematic view of the utility model;

[0012] Figure 3 It is the A place large sample drawing of the utility model; Figure 1

[0013] Figure 4 It is the B place large sample drawing of the utility model; Figure 2

[0014] Figure 5 It is the C place large sample drawing of the utility model; Figure 2

[0015] Figure 6 It is the D place internal large sample drawing of the utility model. Figure 3

[0016] ​​​​In the figure: 1, protractor plate; 2, center shaft cylinder; 3, extension straight ruler sleeve plate; 4, protractor swing sleeve plate; 5, measuring pendulum; 6, extension butt straight ruler plate; 7, insert butt block; 8, push bolt; 9, inner clamping piece; 10, stable sleeve plate; 11, inner disc pressing; 12, rectangular compression spring; 13, pull cap; 14, outer cover slide piece; 15, hand pinch cap; 16, inner threaded sleeve cap cylinder; 17, push cap tube; 18, resistance transparent arc plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] As Figures 1-6The utility model provides a kind of angle measuring device, including angle measuring scale plate 1, the middle part of the horizontal plate of angle measuring scale plate 1 is fixedly provided with central shaft cylinder 2, the middle part of central shaft cylinder 2 is hollow, the surface of central shaft cylinder 2 is movably equipped with extension ruler sleeve plate 3, the end of extension ruler sleeve plate 3 is spliced with extension butt joint ruler plate 6, the top of extension ruler sleeve plate 3 is fixedly provided with angle measuring swing sleeve plate 4, the other end of angle measuring swing sleeve plate 4 is fixedly provided with outer protection sliding part 14, and the arc-shaped inner wall of outer protection sliding part 14 and the arc-shaped outer edge of angle measuring scale plate 1 slide contact, the top surface of outer protection sliding part 14 is fixedly provided with hand pinch cap 15, the middle part of angle measuring swing sleeve plate 4 is hollow, the hollow recess of angle measuring swing sleeve plate 4 is fixedly connected with measuring pendulum 5, by the setting of angle measuring swing sleeve plate 4 and measuring pendulum 5, to be centered with central shaft cylinder 2 as center angle swing with angle measuring swing sleeve plate 4, measuring pendulum 5 in it is aimed at the angle line of required measurement to cover, so that it can be directly read by the reading of measuring pendulum 5, i.e. the required measurement angle, the right side of extension ruler sleeve plate 3 is on the same straight line with measuring pendulum 5, the inside of the horizontal plate of angle measuring scale plate 1 is fixedly provided with resistance transparent arc plate 18, the side of angle measuring swing sleeve plate 4 is fixedly provided with internal thread sleeve cap cylinder 16, the inner wall of internal thread sleeve cap cylinder 16 is threadedly equipped with push cap tube 17, the end of push cap tube 17 and the surface of resistance transparent arc plate 18 abut and contact, by the setting of resistance transparent arc plate 18 and push cap tube 17, to be threaded push principle by push cap tube 17 and internal thread sleeve cap cylinder 16, utilize the end of push cap tube 17 and the surface of resistance transparent arc plate 18 to generate frictional resistance, to reach the effect of temporary positioning of angle measuring pendulum 5 that is positioned well, to facilitate the effect of drawing angle line by pen core on the right side of extension ruler sleeve plate 3 and extension butt joint ruler plate 6, the end of extension butt joint ruler plate 6 is fixedly connected with insertion butt block 7, one end of insertion butt block 7 is inserted into the inside of extension ruler sleeve plate 3, and the side of insertion butt block 7 is provided with clamping recess, by the setting of insertion butt block 7, to make its extension ruler sleeve plate 3 and extension butt joint ruler plate 6 can be smoothly spliced effect, the side of the splicing place of extension ruler sleeve plate 3 and extension butt joint ruler plate 6 is slidably inserted with push bolt 8, the end of push bolt 8 is fixedly provided with inner clamping part 9, the surface of inner clamping part 9 and the surface of insertion butt block 7 are all provided with inclined surface that is used in mutual cooperation, the inclined surface side of inner clamping part 9 is inserted into the clamping recess that is provided in the side of insertion butt block 7, by the setting of inner clamping part 9, to utilize inner clamping part 9 to clamp in the clamping recess that is provided in the side of insertion butt block 7, to ensure the stability of extension ruler sleeve plate 3 and extension butt joint ruler plate 6 splicing, the surface of push bolt 8 is slidably equipped with stable sleeve plate 10, stable sleeve plate 10 and extension ruler sleeve plate 3 are fixedly bonded by glue, the surface of push bolt 8 is equipped with rectangular compression spring 12,And the two ends of the rectangular compression spring 12 are respectively fixedly connected with the inner wall of the stable sleeve plate 10 and the surface of the compression inner disc 11, through the setting of the rectangular compression spring 12, thereby playing the effect that continuously pressurizing the inner clamping piece 9 to the right side in the natural state, the inner ring of the compression inner disc 11 is fixedly sleeved on the surface of the pushing bolt rod 8, the outside end of the pushing bolt rod 8 is provided with a pulling cap 13, through the setting of the pulling cap 13, thereby playing the effect that conveniently pulling the inner clamping piece 9 to displace by driving the pushing bolt rod 8, thereby making it inserted into the butt joint block 7 to be smoothly pulled out from the inside of the extension ruler sleeve plate 3,

[0019] In use, first, the central hole in the middle of the central shaft cylinder 2 is aligned with the horizontal line corresponding to the angle to be measured, then the angle measuring swing sleeve plate 4 is swung, so that the measuring pendulum 5 in the middle of the angle measuring swing sleeve plate 4 overlaps the angle line to be measured, then the angle value on the angle ruler plate 1 pointed by the measuring pendulum 5 is read, and the angle line to be drawn is drawn as follows: first, the extension ruler sleeve plate 3 and the extension butt joint ruler plate 6 are assembled and installed, that is, the insertion butt joint block 7 at the end of the extension butt joint ruler plate 6 is inserted into the inside of the extension ruler sleeve plate 3, and the inner clamping piece 9 is clamped in the groove of the insertion butt joint block 7 to fix it, then the extension ruler sleeve plate 3 and the extension butt joint ruler plate 6 can be used, first, the central hole in the middle of the central shaft cylinder 2 is aligned with the horizontal line corresponding to the angle to be drawn, then the angle measuring swing sleeve plate 4 is swung, so that the angle value on the angle ruler plate 1 pointed by the measuring pendulum 5 is the angle of the angle line to be drawn, then the pushing cap tube 17 is rotated, the frictional resistance between the bottom end of the pushing cap tube 17 and the surface of the resistance transparent arc plate 18 is utilized to temporarily position the measuring pendulum 5 at the angle to be drawn, then the angle line to be drawn is drawn by drawing a line along the right side of the extension ruler sleeve plate 3 and the extension butt joint ruler plate 6 with a brush, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0020] In summary, the angle measuring device with convenient reading, through the setting of the angle measuring swing sleeve plate 4, the angle measuring swing sleeve plate 4 is swung with the central shaft cylinder 2 as the center, the measuring pendulum 5 in the angle measuring swing sleeve plate 4 is aligned with the angle line to be measured, then the reading pointed by the measuring pendulum 5 is directly read, avoiding the misreading of the overlapping measuring line on the scale line on the ruler, and the angle can be accurately and quickly measured, and the extension ruler sleeve plate 3 is arranged at the other end of the angle measuring swing sleeve plate 4, and the extension ruler sleeve plate 3 and the extension butt joint ruler plate 6 are assembled and used, so that the reading angle of the measuring pendulum 5 is drawn along the right side of the extension ruler sleeve plate 3 and the extension butt joint ruler plate 6, and the angle line to be drawn can be quickly and conveniently drawn, thereby effectively improving the practicability and accuracy of the angle measuring device.

[0021] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0022] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A protractor for facilitating reading of an angle, comprising a protractor scale plate (1), characterised in that: The middle part of the transverse plate of the angle ruler plate (1) is fixedly provided with a central shaft cylinder (2), the middle part of the central shaft cylinder (2) is hollow, the surface of the central shaft cylinder (2) movably sheaths an extension ruler sleeve plate (3), the tail end of the extension ruler sleeve plate (3) is spliced with an extension butt joint ruler plate (6), the top of the extension ruler sleeve plate (3) is fixedly provided with an angle swinging sleeve plate (4), the middle part of the angle swinging sleeve plate (4) is hollow, the hollow groove of the angle swinging sleeve plate (4) is fixedly connected with a measuring pendulum (5), and the right side of the extension ruler sleeve plate (3) is on the same straight line as the measuring pendulum (5).

2. A protractor for facilitating reading according to claim 1, wherein: The end of the extension butt joint ruler plate (6) is fixedly connected with an insertion butt joint block (7), one end of the insertion butt joint block (7) is inserted into the inside of the extension ruler sleeve plate (3), the side surface of the insertion butt joint block (7) is provided with a clamping groove, the side surface of the splicing part of the extension ruler sleeve plate (3) and the extension butt joint ruler plate (6) is slidably inserted with a pushing bolt rod (8), the end of the pushing bolt rod (8) is fixedly provided with an inner clamping piece (9), the surface of the inner clamping piece (9) and the surface of the insertion butt joint block (7) are provided with inclined surfaces that are matched with each other, the inclined surface of the inner clamping piece (9) is inserted into the clamping groove provided on the side surface of the insertion butt joint block (7), the surface of the pushing bolt rod (8) is slidably sheathed with a stable sleeve plate (10), the stable sleeve plate (10) and the extension ruler sleeve plate (3) are fixedly bonded by glue, the surface of the pushing bolt rod (8) is sheathed with a rectangular compression spring (12), and the two ends of the rectangular compression spring (12) are fixedly connected with the inner wall of the stable sleeve plate (10) and the surface of a pressing inner disc (11) respectively, the inner ring of the pressing inner disc (11) is fixedly sheathed on the surface of the pushing bolt rod (8), and the outer side end of the pushing bolt rod (8) is provided with a pulling cap (13).

3. A reader-friendly protractor according to claim 1, wherein: The inner side of the transverse plate of the angle ruler plate (1) is fixedly provided with a resistance transparent arc plate (18), the side surface of the angle swinging sleeve plate (4) is fixedly provided with an inner thread sleeve cap cylinder (16), the inner wall of the inner thread sleeve cap cylinder (16) is threadedly sheathed with a pushing cap pipe (17), and the tail end of the pushing cap pipe (17) is in abutting contact with the surface of the resistance transparent arc plate (18).

4. The angle measuring device of claim 1, wherein: The other end of the angle swinging sleeve plate (4) is fixedly provided with an outer protective sliding piece (14), the arc-shaped inner wall of the outer protective sliding piece (14) is in sliding contact with the arc-shaped outer edge of the angle ruler plate (1), and the top surface of the outer protective sliding piece (14) is fixedly provided with a hand pinching cap (15).

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