CN210321472U

CN210321472U - Vernier caliper

Info

Publication number: CN210321472U
Application number: CN201921361897.5U
Authority: CN
Inventors: 皋飞; 黄保黔
Original assignee: Nst Technology Ltd Co ltd
Current assignee: Nst Technology Ltd Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-04-14
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a vernier caliper, which is characterized in that when the vernier caliper is provided with a caliper rod, a moving arm, a fixed arm and a display mechanism to measure the center distance of two shafts, one shaft is clamped in a triangular notch arranged at a first measuring part of the fixed arm, and the movable arm is slid to clamp the triangular notch of the first measuring part on the other shaft, and the measuring result of the distance measuring mechanism is the center distance between the two shafts, when the center distance between the two holes is measured, the second measuring part of the fixing arm is inserted into one of the round holes, and the movable arm is slid to insert the second measuring portion into the second circular hole, and the measuring result of the measuring mechanism is the center distance between the two holes, because the included angle is formed between the first measuring part and the second measuring part, the thickness of objects at special positions can be measured, and the problem that the measuring range of the traditional vernier caliper is single is solved.

Description

Vernier caliper

Technical Field

The utility model belongs to the technical field of measure, especially, relate to a slide caliper.

Background

The vernier caliper is a measuring tool for measuring length, inner diameter, outer diameter and depth, and is formed from two portions of main scale and vernier attached on the main scale and capable of sliding, the main scale generally uses mm as unit, and the vernier has 10, 20 or 50 divisions, and according to the difference of the divisions, the vernier caliper can be divided into ten-division vernier caliper, twenty-division vernier caliper and fifty-division vernier caliper, etc.

The conventional vernier caliper can measure the diameter, the bore diameter and the depth of the hole of the object, but the function is not sufficient for all practical applications, such as how to measure the distance between the centers of two objects, and the like, and the conventional vernier caliper cannot be sufficient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vernier caliper to enrich vernier caliper's function, obtain wider measurable quantity scope.

The utility model discloses a vernier caliper, including vernier caliper body and range finding mechanism, the range finding mechanism includes chi pole, shifting arm and fixed arm, wherein one end of chi pole is fixed connection in the fixed arm, the shifting arm slip connection in chi pole; the distance measuring mechanism and the moving arm are arranged in a relatively static manner; the movable arm and the fixed arm both comprise a first measuring part and a second measuring part, an included angle is formed between the first measuring part and the second measuring part, triangular notches are formed in the first measuring part, and the two triangular notches are identical in size; the width of one end of the second measuring part far away from the first measuring part is gradually reduced.

Preferably, the included angle is 45-135 degrees.

Preferably, the distance measuring mechanism is fixedly connected with the moving arm, and the distance measuring mechanism is arranged on the ruler rod in a sliding mode.

Preferably, the vernier caliper body further comprises a sliding rod, the sliding rod is located inside a sliding groove formed in the caliper rod and is in sliding connection with the caliper rod, and the bottom of the sliding rod is fixedly connected with the ranging mechanism.

Preferably, the distance measuring mechanism is internally provided with a roller which is rotatably connected to the distance measuring mechanism through a rotating shaft, and the roller is in rolling contact with the ruler rod.

Preferably, the movable arm is provided with a rectangular hole, and the size of an inner cavity of the rectangular hole is the same as the size of the cross section of the ruler rod.

Preferably, the distance measuring mechanism further comprises a display mechanism, and the display mechanism is connected with the distance measuring mechanism and used for displaying the measuring result of the distance measuring mechanism.

Compared with the prior art, the beneficial effects of the utility model reside in that: the vernier caliper of the utility model is provided with the caliper rod, the moving arm, the fixed arm and the display mechanism, when measuring the center distance of two shafts, one shaft is clamped in the triangular gap arranged at the first measuring part of the fixed arm, and the movable arm is slid to clamp the triangular notch of the first measuring part on the other shaft, and the measuring result of the distance measuring mechanism is the center distance between the two shafts, when the center distance between the two holes is measured, the second measuring part of the fixing arm is inserted into one of the round holes, and the movable arm is slid to insert the second measuring portion into the second circular hole, and the measuring result of the measuring mechanism is the center distance between the two holes, because the included angle is formed between the first measuring part and the second measuring part, the thickness of objects at special positions can be measured, and the problem that the measuring range of the traditional vernier caliper is single is solved.

It should be understood that the foregoing is a preferred embodiment of the present invention, and it should be noted that modifications and decorations can be made by those skilled in the art without departing from the principle of the present invention, and these modifications and decorations are also considered to be the protection scope of the present invention.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a schematic plan view of the present invention;

fig. 3 is a schematic view of the connection between the fixed arm and the movable arm of the present invention.

In the figure: 1. a vernier caliper body; 11. a slide bar; 12. a ruler rod; 13. a moving arm; 14. a fixed arm; 15. a rectangular hole; 2. a distance measuring mechanism; 21. a roller; 22. and a display mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and fig. 2, the present invention provides a solution: a vernier caliper comprises a vernier caliper body 1 and a distance measuring mechanism 2, wherein the vernier caliper body 1 comprises a caliper rod 12, a moving arm 13 and a fixed arm 14, one end of the caliper rod 12 is fixedly connected to the fixed arm 14, and the moving arm 13 is connected to the caliper rod 12 in a sliding manner; the distance measuring mechanism 2 and the moving arm 13 are arranged in a relatively static manner; the moving arm 13 and the fixed arm 14 both comprise a first measuring part and a second measuring part, an included angle exists between the first measuring part and the second measuring part, the first measuring part is provided with triangular notches, and the two triangular notches are the same in size; the width of one end of the second measuring part far away from the first measuring part is gradually reduced.

In one embodiment, the included angle is 45 ° to 135 °. For example, it may be 90 °, i.e. the first and second measuring portions are perpendicular. Of course, other angles are also possible.

Further, an included angle between the first measuring portion and the second measuring portion is adjustable.

As shown in fig. 1, 2 first measuring parts are arranged in parallel with each other and parallel to the longitudinal direction of the blade 12; and 2 second measuring parts are arranged in parallel, but are perpendicular to the length direction of the ruler rod 12.

First measuring part and second measuring part set up perpendicularly (or other angle settings), can shift the space that slide caliper occupied in a certain direction to another space region in, thereby make the utility model discloses a slide caliper function is various, and is nimble convenient.

Referring to fig. 3, the distance measuring mechanism 2 includes a roller 21, and the roller 21 is rotatably connected to the inside of the distance measuring mechanism 2 and slidably contacts with the ruler rod 12.

Further, the distance measuring mechanism 2 further comprises a display mechanism 22, and the display mechanism 22 is connected with the distance measuring mechanism 2 and is used for displaying the measurement result of the distance measuring mechanism 2.

In the present embodiment, the display mechanism 22 has, for example, an electronic display screen.

Further, isosceles triangle gaps are formed in the first measuring portions of the moving arm 13 and the fixed arm 14, the two triangle gaps are the same in size, and the far ends (i.e., the ends far away from the first measuring portion) of the second measuring portions of the moving arm 13 and the fixed arm 14 are both in an acute triangle shape.

Further, the corners of the acute triangle may be rounded.

In this embodiment, the first measuring parts of the moving arm 13 and the fixed arm 14 are provided with triangular notches for clamping two shafts, and the distance between the centers of the two shafts is measured, and the distal ends of the second measuring parts of the moving arm 13 and the fixed arm 14 are in the shape of an acute triangle for conveniently clamping the two shafts inside two holes and measuring the distance between the centers of the two holes.

In this embodiment, one end of the ruler rod 12 is fixedly connected with a fixed arm 14, the outer surface of the ruler rod 12 is connected with a movable arm 13 in a sliding manner, isosceles triangle notches are formed in the first measuring parts of the movable arm 13 and the fixed arm 14, when the axle center distance between two axles needs to be measured, the triangular notch formed in the fixed arm 14 fixedly connected with the ruler rod 12 is clamped on one of the circular axles, the movable arm 13 on the ruler rod 12 is slid, the triangular notch formed in the first measuring part of the movable arm 13 is clamped on the other circular axle, and in the sliding process, the distance measuring mechanism 2 and the display mechanism 22 can calculate the sliding distance between the movable arm 13 and the ruler rod 12 according to the rolling number of turns of the roller 21, so that the axle center distance between the two circular axles is obtained.

The far ends of the second measuring parts of the moving arm 13 and the fixed arm 14 (i.e. the ends far away from the first measuring part) are for example in the shape of an acute triangle, when the center distance between two holes is measured, the second measuring part of the fixed arm 14 is inserted into the hole to be measured, then the moving arm 13 is slid, the second measuring part of the moving arm 13 is inserted into another hole, and in the sliding process, the distance measuring mechanism 2 and the display mechanism 22 can calculate the sliding distance of the moving arm 13 according to the rolling number of turns of the roller 21, so as to obtain the center distance between two round holes.

When the thickness of an object needs to be measured, the first measuring part on the fixing arm 14 is attached to one surface of the object, then the moving arm 13 slides, the second measuring part on the moving arm 13 is attached to the opposite surface of the object, the sliding distance of the moving arm 13 is the thickness of the object, and the problem that the measuring result of a traditional vernier caliper is single is solved by arranging the fixing arm and the moving arm.

The utility model discloses in, can be when two second measuring parts are hugged closely, the triangle-shaped of two first measuring parts coincide just, also does this moment the utility model discloses slide caliper's zero scale department.

Furthermore, the distance measuring mechanism 2 is fixedly connected with the moving arm 13, and the distance measuring mechanism 2 is slidably arranged on the ruler rod 12.

In this embodiment, the distance measuring mechanism 2 is fixedly connected to the moving arm 13, so that the moving arm 13 can drive the distance measuring mechanism 2 to slide when sliding along the blade 12, thereby measuring the sliding distance of the moving arm 13.

Further, the vernier caliper body 1 further comprises a sliding rod 11, the sliding rod 11 is located inside a sliding groove formed in the caliper rod 12 and is connected with the caliper rod 12 in a sliding mode, and the bottom of the sliding rod 11 is fixedly connected with the distance measuring mechanism 2.

In the present embodiment, a slide bar 11 is provided, and the slide bar 11 is located inside a slide slot formed on the ruler rod 12 and is slidably connected with the ruler rod 12 for measuring the depth of the hole.

Further, a roller 21 is arranged inside the distance measuring mechanism 2, the roller 21 is rotatably connected to the distance measuring mechanism 2 through a rotating shaft, and the roller 21 is in rolling contact with the ruler rod 12.

In the present embodiment, the roller 21 is disposed and the roller 21 is in rolling contact with the ruler rod 12, and when the distance measuring mechanism 2 slides, the roller 21 is driven to roll along the ruler rod 12, and since the circumference of the roller 21 is fixed, the distance between the movable arm 13 and the fixed arm 14 can be calculated by multiplying the number of turns of the roller 21 by the circumference of the roller 21.

The method for measuring and calculating the distance displayed by the display mechanism 22 is not limited to the number of rolling turns of the roller 21, and for example, the ruler rod 12 may have a scale, and the display mechanism 22 may read the scale.

Further, a rectangular hole 15 is formed in the moving arm 13, and the size of an inner cavity of the rectangular hole 15 is the same as or slightly larger than the size of the cross section of the ruler rod 12.

In this embodiment, a rectangular hole 15 is formed in one of the moving arms 13, and the size of the inner cavity of the rectangular hole 15 is the same as or slightly larger than the size of the cross section of the ruler rod 12, so that the rectangular hole 15 can be sleeved on the ruler rod 12 and is slidably connected with the ruler rod 12.

To sum up, the beneficial effects of the utility model reside in that: the vernier caliper of the utility model is provided with the caliper rod, the moving arm, the fixed arm and the display mechanism, when measuring the center distance of two shafts, one shaft is clamped in the triangular gap arranged at the first measuring part of the fixed arm, and the movable arm is slid to clamp the triangular notch of the first measuring part on the other shaft, and the measuring result of the distance measuring mechanism is the center distance between the two shafts, when the center distance between the two holes is measured, the second measuring part of the fixing arm is inserted into one of the round holes, and the movable arm is slid to insert the second measuring portion into the second circular hole, and the measuring result of the measuring mechanism is the center distance between the two holes, because the included angle is formed between the first measuring part and the second measuring part, the thickness of objects at special positions can be measured, and the problem that the measuring range of the traditional vernier caliper is single is solved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A vernier caliper comprises a vernier caliper body (1) and a distance measuring mechanism (2), and is characterized in that the vernier caliper body (1) comprises a caliper rod (12), a moving arm (13) and a fixed arm (14), wherein one end of the caliper rod (12) is fixedly connected to the fixed arm (14), and the moving arm (13) is connected to the caliper rod (12) in a sliding manner; the distance measuring mechanism and the moving arm are arranged in a relatively static manner; the movable arm and the fixed arm both comprise a first measuring part and a second measuring part, an included angle is formed between the first measuring part and the second measuring part, triangular notches are formed in the first measuring part, and the two triangular notches are identical in size; the width of one end of the second measuring part far away from the first measuring part is gradually reduced.

2. A vernier calliper as claimed in claim 1, wherein said included angle is in the range 45 ° to 135 °.

3. A vernier calliper as claimed in claim 1, wherein said distance measuring means (2) is fixedly connected to said moving arm (13), said distance measuring means (2) being slidably mounted on said rod (12).

4. A vernier caliper as claimed in claim 1, wherein the vernier caliper body (1) further comprises a sliding rod (11), the sliding rod (11) is located inside a sliding groove formed on the caliper rod (12) and is slidably connected with the caliper rod (12), and the bottom of the sliding rod (11) is fixedly connected with the distance measuring mechanism (2).

5. A vernier caliper as claimed in claim 1, wherein the distance measuring means (2) is provided with a roller (21) therein, the roller (21) is rotatably connected to the distance measuring means (2) through a rotating shaft, and the roller (21) is in rolling contact with the rod (12).

6. A vernier caliper as claimed in claim 1, wherein said movable arm (13) is provided with a rectangular hole (15), and the size of the inner cavity of said rectangular hole (15) is the same as the size of the cross section of said rod (12).

7. A vernier calliper as claimed in claim 1, wherein said distance measuring means (2) further comprises display means (22), said display means (22) being connected to said distance measuring means (2) for displaying the measurement results of said distance measuring means (2).