阅读说明：本技术 一种游标卡尺 (Vernier caliper ) 是由 高翠萍 张生乐 于 2020-12-17 设计创作，主要内容包括：本发明公开了一种游标卡尺,涉及测量技术领域,解决了现有游标卡尺无法对已安装固定于狭小空间内并且自身形状不规则的被测物体进行测量的技术问题。包括卡尺本体、第一卡爪以及第二卡爪,卡尺本体包括主尺与游标,第一卡爪沿第一卡爪的延伸方向与主尺滑动连接,和/或,第二卡爪沿第二卡爪的延伸方向与游标滑动连接。本发明通过第一卡爪与主尺的滑动连接,或者第二卡爪与游标的滑动连接,或者第一卡爪与第二卡爪同时滑动连接,能够使第一卡爪和/或第二卡爪伸缩调节,从而使第一卡爪和/或第二卡爪能够抓取到被测物体的测量面,解决了游标卡尺由于被测物体形状以及所处环境影响而导致的无法测量的问题。(The invention discloses a vernier caliper, relates to the technical field of measurement, and solves the technical problem that the existing vernier caliper cannot measure a measured object which is installed and fixed in a narrow space and has an irregular shape. Including slide caliper rule body, first jack catch and second jack catch, the slide caliper rule body includes main scale and vernier, and first jack catch is along the extending direction and the main scale sliding connection of first jack catch, and/or, the extending direction and the vernier sliding connection of second jack catch are followed to the second jack catch. According to the invention, the first clamping jaw and/or the second clamping jaw can be telescopically adjusted through the sliding connection between the first clamping jaw and the main ruler, or the sliding connection between the second clamping jaw and the vernier, or the simultaneous sliding connection between the first clamping jaw and the second clamping jaw, so that the first clamping jaw and/or the second clamping jaw can grasp the measuring surface of the measured object, and the problem that the vernier caliper cannot be measured due to the influence of the shape of the measured object and the environment where the vernier caliper is located is solved.)

1. A vernier caliper, comprising:

the caliper comprises a caliper body, wherein the caliper body comprises a main ruler (1) and a vernier (2) sliding on the main ruler (1);

the first clamping jaw (3), the first clamping jaw (3) is connected with the main ruler (1); and the number of the first and second groups,

the second clamping jaw (4), the second clamping jaw (4) is connected with the vernier (2);

the first clamping jaw (3) is connected with the main ruler (1) in a sliding mode along the extending direction of the first clamping jaw (3), and/or the second clamping jaw (4) is connected with the vernier (2) in a sliding mode along the extending direction of the second clamping jaw (4).

2. A vernier caliper according to claim 1, characterized in that a first limit part is arranged on the main ruler (1), and the first jaw (3) is connected with the main ruler (1) in a sliding manner through the first limit part; and/or the presence of a gas in the gas,

the vernier (2) is provided with a second limiting part, and the second clamping jaw (4) is connected with the vernier (2) in a sliding mode through the second limiting part.

3. A vernier caliper according to claim 2, characterized in that the first limit stop comprises a bar-shaped stop (5) arranged on the main scale (1), the bar-shaped stop (5) being arranged in the extension direction of the first jaw (3), the first jaw (3) being directionally slidable on the main scale (1) by means of the bar-shaped stop (5).

4. A vernier calliper according to claim 3, wherein the side of the first jaw (3) facing the second jaw (4) is at the zero scale position of the main ruler (1), the bar stop (5) being in contact with the other side of the first jaw (3).

5. The vernier caliper according to claim 2, wherein the second position-limiting portion comprises a protruding portion (6) disposed on the vernier (2), a sliding groove (7) adapted to the protruding portion (6) and disposed along an extending direction of the second jaw (4) is formed on the second jaw (4), and the second jaw (4) slides directionally on the protruding portion (6) through the sliding groove (7).

6. Vernier calliper according to claim 1, characterised in that locking means are provided on the first jaw (3) and/or the second jaw (4), by means of which locking means the sliding position of the first jaw (3) and/or the second jaw (4) is fixed.

7. Vernier caliper according to claim 6, characterized in that the locking means comprises a locking screw (8) and a locking washer (9), the locking screw (8) being in threaded connection with the main scale (1) and/or the vernier (2), the locking washer (9) being arranged between the locking screw (8) and the first jaw (3) and/or the locking washer (9) being arranged between the locking screw (8) and the second jaw (4).

8. The vernier caliper according to any one of claims 1 to 7, wherein the second jaw (4) is connected to a bending member (41) which is bent toward the first jaw (3), the bending member (41) is connected to a jaw head (42), and after the inner side edge of the first jaw (3) and the inner side edge of the second jaw (4) are closed, the outer side edge of the jaw head (42) and the outer side edge of the first jaw (3) are closed.

9. A vernier calliper according to claim 1, characterised in that said vernier (2) is a digital display vernier.

10. Vernier caliper according to claim 9, characterized in that the digital display vernier is provided with a reading screw (10) and an arc-shaped portion for facilitating sliding.

Technical Field

The invention relates to the technical field of measurement, in particular to a vernier caliper.

Background

The vernier caliper is a high-precision measuring tool commonly used in industry, and is widely applied to life and engineering. The common vernier calipers in the current market can be divided into the following reading modes: the types of reading type, band meter type, digital display type and the like can be divided into the types of measuring length, inner diameter, outer diameter, depth and the like from the aspect of use, and the requirements of most projects can be basically met. However, for a measured object which is installed and fixed in a narrow space and has an irregular shape, the measuring claws of the vernier caliper in the prior art are respectively fixed on the main scale and the vernier and are limited by the arm length of the measuring claws fixed by the vernier caliper, so that the measuring claws cannot accurately grab the measuring surface of the measured object. Therefore, it is an urgent technical problem to be solved by those skilled in the art how to design a vernier caliper which can be applied to the measurement of the above-mentioned object to be measured.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a vernier caliper, which solves the technical problem that the conventional vernier caliper cannot measure a measured object which is installed and fixed in a narrow space and has an irregular shape.

The technical scheme adopted by the invention for solving the technical problem is as follows:

a vernier caliper, comprising:

the caliper comprises a caliper body, a positioning device and a control device, wherein the caliper body comprises a main ruler and a vernier sliding on the main ruler;

the first clamping jaw is connected with the main ruler; and the number of the first and second groups,

the second clamping jaw is connected with the vernier;

the first clamping jaw is connected with the main ruler in a sliding mode along the extending direction of the first clamping jaw, and/or the second clamping jaw is connected with the vernier in a sliding mode along the extending direction of the second clamping jaw.

On the basis of the technical scheme, the vernier caliper can be improved as follows.

Optionally, a first limiting portion is arranged on the main scale, and the first jaw is connected with the main scale in a sliding manner through the first limiting portion; and/or the presence of a gas in the gas,

the vernier is provided with a second limiting part, and the second clamping jaw is connected with the vernier in a sliding mode through the second limiting part.

Optionally, the first limiting portion comprises a bar-shaped stop block arranged on the main scale, the bar-shaped stop block is arranged along the extending direction of the first jaw, and the first jaw slides on the main scale directionally through the bar-shaped stop block.

Optionally, the side edge of the first jaw facing the second jaw is located at a zero scale position of the main scale, and the bar-shaped stop block is in contact with the other side edge of the first jaw.

Optionally, the second limiting portion includes a protruding portion arranged on the cursor, a sliding groove adapted to the protruding portion and arranged along an extending direction of the second jaw is formed in the second jaw, and the second jaw slides directionally on the protruding portion through the sliding groove.

Optionally, a locking device is arranged on the first jaw and/or the second jaw, and the first jaw and/or the second jaw are fixed in a sliding position through the locking device.

Optionally, the locking device includes a locking screw and a locking washer, the locking screw is in threaded connection with the main scale and/or the vernier, the locking washer is disposed between the locking screw and the first jaw, and/or the locking washer is disposed between the locking screw and the second jaw.

Optionally, the second jaw is connected with a bending piece bent towards the first jaw, the bending piece is connected with a jaw head, and after the inner side edge of the first jaw is closed with the inner side edge of the second jaw, the outer side edge of the jaw head is closed with the outer side edge of the first jaw.

Optionally, the vernier is a digital display vernier.

Optionally, a reading screw and an arc-shaped part convenient to slide are arranged on the digital display vernier.

Compared with the prior art, the vernier caliper provided by the invention has the beneficial effects that:

according to the invention, the first clamping jaw and/or the second clamping jaw can be telescopically adjusted through the sliding connection between the first clamping jaw and the main ruler, or the sliding connection between the second clamping jaw and the vernier, or the simultaneous sliding connection between the first clamping jaw and the second clamping jaw, so that the first clamping jaw and/or the second clamping jaw can grasp the measuring surface of the measured object, and the problem that the vernier caliper cannot be measured due to the influence of the shape of the measured object and the environment where the vernier caliper is located is solved. In addition, the method is simple to operate, and compared with the existing vernier caliper, the method is higher in accuracy of a measurement result of the special-shaped object to be measured, and wider in application range.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a rear view of a vernier caliper according to the present invention;

FIG. 2 is a schematic view of the vernier caliper according to the present invention;

FIG. 3 is a schematic view of the main scale and the vernier of FIG. 1;

FIG. 4 is a schematic view of the outer sidewall measuring structure of the vernier caliper according to the present invention;

FIG. 5 is a schematic view of the inner wall of the vernier caliper according to the present invention.

In the figure:

1-main ruler; 2-a cursor; 3-a first jaw; 4-a second jaw; 41-bending piece; 42-jaw head; 5, a strip-shaped stop block; 6-a boss; 7, a chute; 8, locking screws; 9-a locking washer; 10-reading screw; 11-arc shaped portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely a few embodiments of the invention and are not to be taken as a comprehensive embodiment. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Example (b):

the invention provides a vernier caliper, as shown in fig. 1 and 2, comprising a caliper body, a first jaw 3 and a second jaw 4. The caliper body comprises a main caliper 1 and a vernier 2, the vernier 2 is a digital display vernier and is convenient to read, and the vernier 2 slides on the main caliper 1. Be provided with reading screw 10 and arc portion 11 on the digital display vernier, after vernier 2 slides and targets in place, through reading screw 10 locking on main scale 1, arc portion 11 makes things convenient for operating personnel to slide vernier 2. Of course, the cursor 2 can also be a graduated cursor.

As shown in fig. 1 to 3, the whole first jaw 3 is a long strip-shaped structure, a first limit portion is arranged at a zero-scale position of the main scale 1, the first limit portion includes a strip-shaped stop block 5 arranged on the main scale 1, and the length direction of the strip-shaped stop block 5 is arranged along the extending direction of the first jaw 3. One side of the first clamping jaw 3 is tightly attached to one side of the strip-shaped check block 5, and the other side of the first clamping jaw 3 is positioned on a zero scale mark. Therefore, when the first clamping jaw 3 slides along the length direction of the strip-shaped check block 5, one side of the first clamping jaw 3 is always kept on the zero scale line, the error of measurement is avoided, the strip-shaped check block 5 plays a role in guiding the sliding of the first clamping jaw 3, and the vernier caliper cannot cause errors in measurement.

As shown in fig. 1 to 3, the second jaw 4 is a strip-shaped structure, the cursor 2 is provided with a second limiting portion, the second limiting portion includes a strip-shaped protruding portion 6 disposed on the cursor 2, and the second jaw 4 is provided with a sliding groove 7 adapted to the protruding portion 6 and disposed along the extending direction of the second jaw 4. After the second claw 4 is installed on the vernier 2, the strip-shaped bulge part 6 is inserted into the sliding groove 7, so that the second claw 4 can only directionally slide along the length direction of the second claw 4. When the cursor 2 slides to the zero scale position, one side of the second claw 4 is close to one side of the first claw 3 with zero scale.

As shown in fig. 1 to 3, the first jaw 3 and the second jaw 4 are provided with locking devices, and the locking devices include locking screws 8 and locking washers 9. Threaded holes are formed in the main scale 1, the locking screws 8 are in threaded connection with the main scale 1, when the first clamping jaws 3 are adjusted in place, the locking gaskets 9 are screwed into the main scale 1 through the locking screws 8 and are clamped tightly, and the first clamping jaws 3 are fixed at the adjusted positions through the locking screws 8. The locking washer 9 can increase the friction force between the first jaw 3, so that the first jaw 3 is prevented from sliding after being adjusted in place, and errors in measurement are avoided. The locking device arranged on the second jaw 4 has the same structure as the locking device arranged on the first jaw 3.

It can be understood that locking device can also be designed as the structure of formula of magnetism, and after first jack catch 3 or second jack catch 4 adjusted to target in place, adsorb first jack catch 3 or second jack catch 4 respectively on main scale 1 or vernier 2 through magnet or magnetite, can realize the fixed function of first jack catch 3 or second jack catch 4 equally.

As shown in fig. 1 and 2, in particular, the second jaw 4 is connected with a bent piece 41 bent toward the first jaw 3, and the bent piece 41 is connected with a jaw head 42 parallel to the second jaw 4. After the inner side edge of the first clamping jaw 3 close to the second clamping jaw 4 and the inner side edge of the second clamping jaw 4 close to the first clamping jaw 3 are close, the outer side edge of the clamping jaw head 42 is close to the outer side edge of the first clamping jaw 3, so that a structure that one end of the first clamping jaw 3 and one end of the second clamping jaw 4 are inner measuring arms, and the other end of the first clamping jaw 3 and the other end of the second clamping jaw are outer measuring arms is formed.

As shown in fig. 4, when the shape of the object to be measured is a convex structure, for example, a vibration isolator on a ship, in order to measure the height of the object to be measured, the existing vernier caliper cannot make the measuring arm catch the top and the bottom of the object to be measured because there is a certain width difference between the top and the bottom of the object to be measured. By using the vernier caliper, the second jaw 4 is stretched along the extension direction of the second jaw 4, the distance between the first jaw 3 and the second jaw 4 is adjusted to be the height of the convex-shaped object to be measured, and the inner measuring arms of the first jaw 3 and the second jaw 4 respectively grab the top and the bottom of the object to be measured, so that the height of the object to be measured can be measured.

As shown in fig. 5, when the convex object to be measured is installed and fixed in a narrow space, in order to measure the height of the object to be measured, the top and the bottom of the object to be measured are shielded, and the existing vernier caliper cannot make the measuring arm catch the top and the bottom of the object to be measured. By using the vernier caliper, the first clamping jaw 3 is stretched along the extending direction of the first clamping jaw 3, the distance between the first clamping jaw 3 and the second clamping jaw 4 is adjusted to be the height of a convex-shaped measured object, so that the outer measuring arms of the first clamping jaw 3 and the second clamping jaw 4 respectively grab the top and the bottom of the measured object, and the height of the measured object can be measured.

According to the invention, the sliding positions of the first clamping jaw 3 and the second clamping jaw 4 along the extension direction are adjusted, so that the first clamping jaw 3 and the second clamping jaw 4 can grab the measuring surface of the measured object, and the problem that the vernier caliper cannot be measured due to the influence of the shape of the measured object and the environment is solved. The whole vernier caliper is simple in measurement operation, high in accuracy of measurement results and wide in application range.

It can be understood that, according to the shape and structure of the actual object to be measured, the invention can select not only the structural form of the first jaw 3 and the second jaw 4 which are connected in a sliding manner at the same time, but also the structural form of the first jaw 3 which is connected in a sliding manner and the second jaw 4 which is connected in a fixed manner, and also the structural form of the first jaw 3 which is connected in a fixed manner and the second jaw 4 which is connected in a sliding manner.

The first limit part on the main scale 1 and the second limit part on the vernier 2 can be interchanged, that is, the second limit part is arranged on the main scale 1, and the first limit part is arranged on the vernier 2. Or, both the first limiting part and the second limiting part are arranged on the main scale 1, and the first limiting part and the second limiting part are arranged on the cursor 2, so that the first clamping jaw 3 and the second clamping jaw 4 can be ensured to respectively slide directionally.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.