CN218211141U

CN218211141U - Angle measuring device

Info

Publication number: CN218211141U
Application number: CN202222509191.7U
Authority: CN
Inventors: 尚保君; 周文兵
Original assignee: Gansu Guangxuan High End Equipment Industry Co ltd; Tunghsu Technology Group Co Ltd
Current assignee: Gansu Guangxuan High End Equipment Industry Co ltd; Tunghsu Technology Group Co Ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-03
Anticipated expiration: 2032-09-22

Abstract

The utility model provides an angle measuring device relates to and measures technical field, and this angle measuring device includes: a base; the display device is arranged on the base and comprises a numerical value display disc and a pointer; the measuring part is rotatably connected to one end of the base, and one side of the measuring part, which is far away from the base, and the base are respectively used for being attached to two sides of an angle to be measured; the transmission device is arranged on the base and is connected between the measuring part and the pointer in a transmission manner; this is disclosed shows the registration that the angle of attack that the difference between measurement portion and the base corresponds through pointer cooperation display panel to reach and treat the angle of attack of angle of survey and carry out measuring effect, not only improved the convenient degree of technical staff in the measurement process, still reduced measurement cost, solved the technical problem who exists among the prior art effectively.

Description

Angle measuring device

Technical Field

The present disclosure relates to the field of measurement technology, and in particular, to an angle measuring device.

Background

The A-shaped frame is used for placing, packaging, storing and transporting glass substrates, and mainly comprises a base, a back plate, a supporting plate, a side baffle, a pressing frame and a protective cover, wherein in order to ensure the accuracy of the glass placing position, an included angle of 90 degrees needs to be kept between the back plate and the supporting plate, and the tolerance is +/-0.2 degrees.

At present, among the current measurement mode, use great metal right angle guiding ruler to inspect, because the angle can't directly be measured to metal right angle guiding ruler, need measure the gap size between metal right angle guiding ruler and the backplate earlier, measure again indirectly whether 90 jiaos are in the tolerance range, this kind of measurement mode receives the human factor influence too big, the people of difference are with the variation in size hard, simultaneously because paste soft layer such as EVA board and pp foaming board on the layer board, its deformation degree is different, lead to the measuring result different, and metal right angle guiding ruler weight is great, if at same position repetition measurement, easy fish tail EVA board on the layer board and pp foaming board surface. But the A-shaped frame is not convenient to move due to the large weight, is not beneficial to the measurement of the photoelectric instrument and has high measurement cost.

Therefore, further solution to the above technical problems is needed.

SUMMERY OF THE UTILITY MODEL

One technical problem to be solved by the present disclosure is: how to measure whether the 90-degree angle between the back plate and the supporting plate of the A-shaped frame is in a tolerance range with low cost and improve the convenience degree in the measuring process.

In order to solve the above technical problem, an embodiment of the present disclosure provides an angle measuring device, including: a base; the display device is arranged on the base and comprises a numerical value display disc and a pointer; the measuring part is rotatably connected to one end of the base, and one side of the measuring part, which is far away from the base, and the base are respectively used for being attached to two sides of an angle to be measured; the transmission device is arranged on the base and is connected between the measuring part and the pointer in a transmission manner; the measuring part rotates relative to the base, and the pointer is driven to synchronously rotate through the transmission device, so that the numerical display disk displays the angle between the measuring part and the base.

In some embodiments, the transmission comprises: the gear is rotationally connected with the base through the rotating shaft, the rotating shafts are distributed on the base at intervals, and the gears on the adjacent rotating shafts are meshed with each other; the rotating shaft located at the head end of the base is connected with the measuring part, and the rotating shaft located at the tail end of the base is connected with the pointer along the distribution direction of the rotating shaft.

In some embodiments, the number of gears is six, being a first gear, a second gear, a third gear, a fourth gear, a fifth gear, and a sixth gear; the number of the rotating shafts is four, and the four rotating shafts are respectively a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft; wherein, first gear passes through first pivot with the base rotates and connects, the second gear with the third gear passes through the second pivot with the base rotates and connects, the fourth gear with the fifth gear passes through the third pivot with the base rotates and connects, the sixth gear passes through the fourth pivot with the base rotates and connects, first gear the second gear the fourth gear and the sixth gear meshes in proper order mutually, the third gear with the fifth gear meshes mutually, the measuring part with first pivot is connected, the pointer with the fourth pivot is connected.

In some embodiments, the diameter of the first gear is greater than the diameter of the third gear than the diameter of the fourth gear, which is the same as the diameter of the fifth gear and the diameter of the sixth gear.

In some embodiments, an end of the pointer facing away from the tip is connected to the fourth rotating shaft; the display disc is an arc-shaped graduated scale taking the fourth rotating shaft as the center, and one end of the graduated scale is connected with the base; the measuring part drives the pointer through the transmission device, and indicates the scales of the graduated scale through the tip of the pointer so as to display numerical values corresponding to different opening angles between the measuring part and the base.

In some embodiments, the base comprises: the display device comprises a mounting seat and a bottom frame, wherein the transmission device and the display disc are arranged on the mounting seat, and the mounting seat is connected with the mounting space of the bottom frame.

In some embodiments, the side of the measuring part, which faces away from the connecting side of the measuring part and the transmission device, is provided with a projection along the direction from the mounting seat to the underframe; the bulge is abutted against the outer side wall of the bottom frame so as to limit the opening angle between the measuring part and the bottom frame.

In some embodiments, further comprising: the guide shafts are arranged on the arrangement space at intervals, and the mounting seat is connected with the guide shafts in a sliding manner; the elastic parts correspond to the guide shafts one by one, and the elastic parts are arranged on the guide shafts; the elastic part enables the mounting seat to be abutted against one side, facing the measuring part, of the bottom frame.

In some embodiments, further comprising: a dust cover disposed on the mount.

In some embodiments, a side of the measuring portion facing away from the transmission is straight.

Through the technical scheme, the angle measuring device that this disclosure provided, it is laminated with one side of the base that is straight form and waiting to survey the angle mutually, rotate measuring part, make measuring part drive the pointer under transmission's effect and carry out synchronous motion, after one side that deviates from the base of measuring part was laminated with another side of the angle that awaits measuring mutually, the pointer stop motion, the scale on the display panel that the pointer instructed this moment is the open angle number of degrees of waiting to survey the angle, this disclosure shows the corresponding registration of different open angles between measuring part and the base through pointer cooperation display panel, thereby reach and treat the open angle of angle and carry out the measured effect, the convenience of technical staff in the measurement process has not only been improved, measurement cost has still been reduced, the technical problem who exists among the prior art has been solved effectively.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of an angle measuring device disclosed in an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a dust cover of an angle measuring device according to an embodiment of the disclosure;

fig. 3 is an exploded view of an angle measuring device according to an embodiment of the present disclosure.

Description of the reference numerals:

1. a base; 11. a mounting seat; 12. a chassis; 2. a display device; 21. a display panel; 22. a pointer; 3. a measuring section; 4. a transmission device; 41. a first gear; 42. a second gear; 43. a third gear; 44. a fourth gear; 45. a fifth gear; 46. a sixth gear; 47. a first rotating shaft; 48. a second rotating shaft; 49. a third rotating shaft; 410. a fourth rotating shaft; 5. a protrusion; 6. a guide shaft; 7. an elastic part; 8. a dust cover.

Detailed Description

Embodiments of the present disclosure are described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are included to illustrate the principles of the disclosure, but are not intended to limit the scope of the disclosure, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but include all technical solutions falling within the scope of the claims.

These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

It is noted that in the description of the present disclosure, unless otherwise indicated, "a plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship merely to facilitate the description of the disclosure and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the disclosure. When the absolute position of the object being described changes, then the relative positional relationship may also change accordingly.

Moreover, the use of "first," "second," and similar terms in this disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. "vertical" is not strictly vertical, but is within the tolerance of the error. "parallel" is not strictly parallel but within the tolerance of the error. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered.

It should also be noted that, in the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood as appropriate to one of ordinary skill in the art. When a particular device is described as being between a first device and a second device, intervening devices may or may not be present between the particular device and the first device or the second device.

All terms used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

Examples

Referring to fig. 1 to 3, an embodiment of the present disclosure provides an angle measuring device including: a base 1, a display device 2, a measuring part 3 and a transmission device 4;

the display device 2 is arranged on the base 1 and comprises a numerical value display disc 21 and a pointer 22;

the measuring part 3 is rotatably connected to one end of the base 1, and one side of the measuring part 3, which is far away from the base 1, is respectively attached to two sides of the base 1, wherein the two sides of the angle to be measured are respectively used for being attached to the two sides of the angle to be measured;

the transmission device 4 is arranged on the base 1 and is in transmission connection between the measuring part 3 and the pointer 22;

wherein, the measuring part 3 rotates relative to the base 1, and drives the pointer 22 to rotate synchronously through the transmission device 4, so that the numerical value display disc 21 displays the angle between the measuring part 3 and the base 1 in multiple.

Specifically, the base 1 can be arranged to play a supporting role, the surface of the base 1, which is attached to the bearing surface, is flat, and the measuring part 3 can be matched with the base 1 to measure the opening angle of the angle to be measured conveniently due to the structural design. The bearing surface is used for supporting one surface of the base 1, and the base 1 is made of metal materials.

Display device 2 includes display panel 21 and pointer 22, can adopt the mode of direct connection to connect between display panel 21 and the base 1, also can adopt the mode of indirect connection to connect, the mode of connection can adopt the mode of dismantling the connection to connect, also can adopt fixed connection's mode to connect, display panel 21 is used for the mark scale, pointer 22 is used for instructing the scale of mark on the display panel 21, cooperation through display panel 21 and pointer 22, the technician can directly observe the scale of pointer 22 on the display panel 21 that different open angles instructed, and then obtain the number of degrees of open angles of waiting to measure the angle.

Base 1 and measuring part 3 cooperate, and base 1 is the one side laminating of straight form and waiting to survey the angle promptly, and measuring part 3 deviates from one side of base 1 and another side laminating of waiting to survey the angle to make measuring part 3 unanimous with the angle of opening of base 1 with the angle of opening of waiting to survey the angle, and then the effect that the angle of opening that the angle was measured is treated to the realization device. The measuring part 3 is a long strip-shaped measuring plate, and the first end of the two opposite ends of the measuring plate is rotatably connected with the transmission device 4 on the base 1, so that the measuring plate can rotate relative to the base 1.

Transmission 4 can realize the effect that the transmission is connected, and when measuring part 3 rotated on base 1, measuring part 3 drove pointer 22 through transmission 4 and carries out synchronous motion, and then realizes that pointer 22 cooperates display panel 21 to show the registration that different open angles correspond between measuring part 3 and the base 1 to reach and treat the open angle of angle measurement and carry out measuring effect.

The angle measuring device provided by the embodiment of the disclosure, one side of the base 1 which is in a straight shape is attached to one side of an angle to be measured, the measuring part 3 is rotated, the measuring part 3 drives the pointer 22 to move synchronously under the action of the transmission device 4, after one side of the measuring part 3 departing from the base 1 is attached to the other side of the angle to be measured, the pointer 22 stops moving, the scale on the display disc 21 indicated by the pointer 22 is the angle degree of the angle to be measured, the indicator corresponding to different angles between the measuring part 3 and the base 1 is displayed by the pointer 22 matching with the display disc 21, so that the effect of measuring the angle to be measured is achieved, the convenience of technical personnel in the measuring process is improved, the measuring cost is reduced, and the technical problems existing in the prior art are effectively solved.

In some embodiments, the transmission 4 comprises: the gear is rotationally connected with the base 1 through the rotating shaft, the rotating shafts are distributed on the base 1 at intervals, and the gears on the adjacent rotating shafts are meshed; along the direction of the distribution of the rotating shafts, the rotating shaft at the head end of the base 1 is connected with the measuring part 3, and the rotating shaft at the tail end of the base 1 is connected with the pointer 22.

Specifically, this structural design can be convenient for measuring part 3 to drive pointer 22 through transmission 4 and carry out synchronous motion on base 1 to realize that pointer 22 cooperates display panel 21 to show the registration that different open angles correspond between measuring part 3 and the base 1, thereby reach and treat the open angle of surveying and carry out the measured effect. When the measuring part 3 rotates on the base 1, the measuring part 3 drives the rotating shaft at the head end of the base 1 to rotate synchronously, the rotating shaft at the head end of the base 1 drives the gear on the rotating shaft at the head end of the base 1 to rotate at the same time, and the gear on the rotating shaft at the head end of the base 1 is meshed with the gear on the rotating shaft at the tail end of the base 1, so that the effect that the pointer 22 is driven by the rotating shaft at the tail end of the base 1 to rotate on the base 1 is realized.

The pivot passes through the bearing and rotates with base 1 to be connected, and the connected mode between gear and the pivot can adopt the detachable mode to connect, also can connect through fixed connection's mode, for example: keyed or welded. The connection mode between the first end of measuring part 3 and the pivot of base 1 head end can adopt the detachable mode to be connected, also can connect through fixed connection's mode, for example: welded or bolted. The pointer 22 and the rotating shaft at the end of the base 1 can be connected in a detachable manner, or in a fixed connection manner, for example: welded or bolted.

2-3, in some embodiments, the number of gears is six, namely a first gear 41, a second gear 42, a third gear 43, a fourth gear 44, a fifth gear 45, and a sixth gear 46; the number of the rotating shafts is four, and the four rotating shafts are respectively a first rotating shaft 47, a second rotating shaft 48, a third rotating shaft 49 and a fourth rotating shaft 410; wherein, first gear 41 passes through first pivot 47 with base 1 rotates and connects, second gear 42 with third gear 43 passes through second pivot 48 with base 1 rotates and connects, fourth gear 44 with fifth gear 45 passes through third pivot 49 with base 1 rotates and connects, sixth gear 46 passes through fourth pivot 410 with base 1 rotates and connects, first gear 41, second gear 42, fourth gear 44 and sixth gear 46 meshes mutually in proper order, third gear 43 with fifth gear 45 meshes mutually, measuring part 3 with first pivot 47 is connected, pointer 22 with fourth pivot 410 is connected.

Specifically, the number of gears in the present disclosure is preferably six, and the number of shafts is preferably four. This structural design, can be convenient for measuring part 3 to drive pointer 22 through transmission 4 and carry out synchronous motion on base 1, namely when measuring part 3 rotates on base 1, the first end of measuring part 3 drives first pivot 47 and carries out synchronous rotation on base 1, first pivot 47 drives first gear 41 and rotates on base 1 when pivoted, first gear 41 meshes with second gear 42, and then drive second pivot 48 and rotate on base 1, second pivot 48 drives third gear 43 and rotates on base 1 when rotating, third gear 43 meshes with fifth gear 45, and then drive third pivot 49 and rotate on base 1, third pivot 49 drives fourth gear 44 and rotates on base 1 when rotating, fourth gear 44 and sixth gear 46 mesh, and then drive fourth pivot 410 and rotate on base 1, pointer drive pointer 22 and rotate on base 1 when rotating, and then realize that pointer 22 cooperates the display panel 21 and the corresponding angle that the base 1 shows between the dish 21 and the measuring effect, thereby the measuring effect that the angle is carried out the measurement between the base 1 is carried out to the measuring part 3.

Referring to fig. 2-3, in some embodiments, the diameter of the first gear 41 is greater than the diameter of the third gear 43, the diameter of the fourth gear 44 is greater than the diameter of the second gear 42, and the diameter of the second gear 42 is the same as the diameter of the fifth gear 45 and the diameter of the sixth gear 46.

Specifically, the structural design can improve the accuracy of the pointer 22 cooperating with the display panel 21 to display the readings corresponding to different angles of opening between the measuring part 3 and the base 1, thereby achieving the effect of measuring the angle of opening of the angle to be measured. The relation between the specific gear ratio and the angle between the pointer 22 and the base 1 rotating by 1 degree can be obtained through calculation, and technicians can select the appropriate gear ratio according to actual conditions to realize the effect of measuring different angles to be measured and ensure the accuracy of the display values of the pointer 22 and the display disc 21 in the measuring process.

Referring to fig. 2-3, in some embodiments, an end of the pointer 22 facing away from the tip is connected to the fourth shaft 410; the display disc 21 is an arc-shaped graduated scale which takes the fourth rotating shaft 410 as a center, and one end of the graduated scale is connected with the base 1; the measuring part 3 drives the pointer 22 through the transmission device 4, and indicates the scale of the graduated scale through the tip of the pointer 22, so as to display the numerical values corresponding to different opening angles between the measuring part 3 and the base 1.

Specifically, the structural design facilitates the pointer 22 to cooperate with the display panel 21 to display the readings corresponding to different angles of opening between the measuring part 3 and the base 1, thereby achieving the effect of measuring the angle of opening of the angle to be measured. The end of the pointer 22 departing from the tip is connected to the fourth shaft 410, and the display panel 21 is an arc scale with the fourth shaft 410 as the center, so that the accuracy of the values displayed by the pointer 22 and the display panel 21 in the measuring process can be ensured. Can adopt the detachable mode to be connected between scale and the base 1, also can adopt fixed mode to connect, for example: clamping, bolting or welding.

Referring to fig. 1-3, in some embodiments, the base 1 includes: the display device comprises a mounting seat 11 and a base frame 12, wherein the transmission device 4 and the display disc 21 are arranged on the mounting seat 11, and the mounting seat 11 is connected with a placement space of the base frame 12.

Specifically, the mount 11 is used to support and mount the transmission 4, the display panel 21, and the measurement section 3. The base frame 12 is used for supporting the installation base 11, and the installation base 11 and the base frame 12 can be connected in a direct connection mode or an indirect connection mode, and the connection mode can be a detachable connection mode or a fixed connection mode.

Referring to fig. 2-3, in some embodiments, the side of the measuring portion 3 facing away from the connecting portion of the measuring portion 3 and the transmission 4 has a protrusion 5 along the direction from the mounting seat 11 to the base frame 12; the protrusion 5 abuts against an outer side wall of the base frame 12 to limit an opening angle between the measuring part 3 and the base frame 12.

Specifically, the structural design can play a limiting effect, and the protrusion 5 on the measuring part 3 is matched with the bottom frame 12, so that the effect of limiting the open angle between the measuring part 3 and the bottom frame 12 is achieved. The projection 5 and the measuring part 3 are of an integral structure.

Referring to fig. 1-3, in some embodiments, further comprising: at least one guide shaft 6 and at least one spring part 7;

the guide shafts 6 are arranged on the arrangement space at intervals, and the mounting seat 11 is connected with the guide shafts 6 in a sliding manner; the elastic parts 7 correspond to the guide shafts 6 one by one, and the elastic parts 7 are arranged on the guide shafts 6; the elastic part 7 presses the mounting seat 11 against one side of the base frame 12 facing the measuring part 3.

In particular, the connection between the mounting 11 and the chassis 12 in the present disclosure is preferably made by means of at least one guide shaft 6 and at least one spring 7. The guide shaft 6 can be detachably connected to the installation space, or can be fixedly connected to the installation space, for example: welded or bolted. The setting of elasticity portion 7 can be supported mount pad 11 in chassis 12 towards one side of measuring part 3 on the one hand, and the angle measurement is carried out to the angle of awaiting measuring to the convenient device, and on the other hand, when the device moved, through the sliding connection of mount pad 11 and guiding axle 6 and the cooperation of elasticity portion 7 use, can make the device reduce the harm of device and device collision in the device when laying, improved the result of use of device. Wherein, the elastic part 7 is a spring.

Referring to fig. 1-3, in some embodiments, further comprising: and the dustproof cover 8 is arranged on the mounting seat 11, and the dustproof cover 8 is arranged on the mounting seat 11.

Specifically, the dust cover 8 is disposed on the mounting seat 11 and located outside the transmission 4, and the dust cover 8 covers the transmission 4 to protect the transmission 4, and in addition, the dust cover 8 can reduce the damage of external dust to the transmission 4 on the mounting seat 11.

With reference to fig. 1-3, in some embodiments the side of the measuring part 3 facing away from the transmission 4 is straight.

Specifically, this structural design, the one side that can be convenient for measuring part 3 deviates from transmission 4 is laminated with the other limit of waiting to survey the angle mutually to the realization is treated the angle of opening of angle and is carried out measuring effect.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict.

Claims

1. An angle measuring device, comprising:

a base (1);

the display device (2) is arranged on the base (1) and comprises a numerical value display disc (21) and a pointer (22);

the measuring part (3) is rotatably connected to one end of the base (1), and one side of the measuring part (3) departing from the base (1) is respectively attached to two sides of the base (1) to be measured;

the transmission device (4) is arranged on the base (1), and is in transmission connection between the measuring part (3) and the pointer (22);

the measuring part (3) rotates relative to the base (1), and the pointer (22) is driven to synchronously rotate through the transmission device (4), so that the numerical display disc (21) displays the angle between the measuring part (3) and the base (1) in a number indication mode.

2. Angle measuring device according to claim 1, characterized in that the transmission device (4) comprises:

the gear is rotationally connected with the base (1) through the rotating shaft, the rotating shafts are distributed on the base (1) at intervals, and the gears on the adjacent rotating shafts are meshed;

the rotating shaft at the head end of the base is connected with the measuring part (3) along the direction of the distribution of the rotating shaft, and the rotating shaft at the tail end of the base is connected with the pointer (22).

3. Angle measuring device according to claim 2,

the number of the gears is six, and the gears are respectively a first gear (41), a second gear (42), a third gear (43), a fourth gear (44), a fifth gear (45) and a sixth gear (46);

the number of the rotating shafts is four, and the four rotating shafts are respectively a first rotating shaft (47), a second rotating shaft (48), a third rotating shaft (49) and a fourth rotating shaft (410);

wherein, first gear (41) pass through first pivot (47) with base (1) rotates to be connected, second gear (42) with third gear (43) pass through second pivot (48) with base (1) rotates to be connected, fourth gear (44) with fifth gear (45) pass through third pivot (49) with base (1) rotates to be connected, sixth gear (46) pass through fourth pivot (410) with base (1) rotates to be connected, first gear (41), second gear (42), fourth gear (44) and sixth gear (46) mesh in proper order mutually, third gear (43) with fifth gear (45) mesh mutually, measuring part (3) with first pivot (47) are connected, pointer (22) with fourth pivot (410) are connected.

4. Angle measuring device according to claim 3,

the diameter of the first gear (41) is larger than the diameter of the third gear (43) is larger than the diameter of the fourth gear (44) is larger than the diameter of the second gear (42), and the diameter of the second gear (42) is the same as the diameter of the fifth gear (45) and the diameter of the sixth gear (46).

5. Angle measuring device according to claim 3 or 4, characterized in that

One end of the pointer (22) departing from the tip end is connected with the fourth rotating shaft (410);

the display disc (21) is an arc-shaped graduated scale taking the fourth rotating shaft (410) as a center, and one end of the graduated scale is connected with the base (1);

the measuring part (3) drives the pointer (22) through the transmission device (4), and indicates the scales of the graduated scale through the tip of the pointer (22) so as to display numerical values corresponding to different opening angles between the measuring part (3) and the base (1).

6. The angle measuring device according to claim 1, characterized in that the base (1) comprises:

the display device comprises a mounting seat (11) and a bottom frame (12), wherein the transmission device (4) and the display disc (21) are arranged on the mounting seat (11), and the mounting seat (11) is connected with a placement space of the bottom frame (12).

7. Angle measuring device according to claim 6,

the side, which is far away from the measuring part (3), of the measuring part (3) and is connected with the transmission device (4) is provided with a protrusion (5) along the direction from the mounting seat (11) to the base frame (12);

wherein the bulge (5) is abutted against the outer side wall of the bottom frame (12) so as to limit the opening angle between the measuring part (3) and the bottom frame (12).

8. The angle measurement device of claim 6, further comprising:

at least one guide shaft (6), wherein the guide shafts (6) are arranged on the arrangement space at intervals, and the mounting seat (11) is connected with the guide shafts (6) in a sliding manner;

the elastic parts (7) correspond to the guide shafts (6) one by one, and the elastic parts (7) are arranged on the guide shafts (6);

the elastic part (7) enables the mounting seat (11) to be abutted against one side, facing the measuring part (3), of the bottom frame (12).

9. The angle measuring apparatus of claim 6, further comprising:

a dust cover (8), the dust cover (8) being disposed on the mount (11).

10. Angle measuring device according to claim 1 or 4,

one side of the measuring part (3) departing from the transmission device (4) is straight.