CN214666451U - Vernier caliper - Google Patents
Vernier caliper Download PDFInfo
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- CN214666451U CN214666451U CN202120978227.9U CN202120978227U CN214666451U CN 214666451 U CN214666451 U CN 214666451U CN 202120978227 U CN202120978227 U CN 202120978227U CN 214666451 U CN214666451 U CN 214666451U
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- inner measuring
- claw
- measuring claw
- vernier
- screw rod
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Abstract
The vernier caliper comprises a main ruler, a vernier scale connected to the main ruler in a sliding mode, two first inner measuring claws fixedly arranged on the main ruler and the vernier scale respectively, a second inner measuring claw arranged on one side, far away from the main ruler, of the first inner measuring claw at intervals, and a telescopic mechanism arranged between the first inner measuring claw and the second inner measuring claw and used for adjusting the distance between the first inner measuring claw and the second inner measuring claw; the telescopic mechanism comprises a screw rod arranged between the first inner measuring claw and the second inner measuring claw and a guide piece arranged between the first inner measuring claw and the second inner measuring claw and used for guiding the movement of the second inner measuring claw and limiting the rotation; one end of the screw rod is rotatably connected with the second inner measuring claw, the other end of the screw rod is in threaded connection with the first inner measuring claw, and one end of the screw rod penetrates through the second inner measuring claw and is located on the outer side of the second inner measuring claw. This application has the effect of being convenient for carry out the measurement to the internal diameter of shoulder hole.
Description
Technical Field
The application relates to the field of precision measurement instruments, in particular to a vernier caliper.
Background
The vernier caliper is a length measuring tool which is most widely used, and can conveniently measure the sizes of inner diameter, outer diameter, length, thickness, depth and the like, the main scale generally takes millimeters as a unit, and the vernier caliper can be divided into ten-division vernier caliper, twenty-division vernier caliper, fifty-division vernier caliper and the like according to different divisions.
At present, a vernier caliper mainly comprises a main ruler and a vernier which is positioned on the main ruler and slides, wherein an inner measuring claw and an outer measuring claw are arranged on the main ruler and the vernier of the vernier caliper, the inner measuring claw is generally used for measuring the inner diameter, and the outer measuring claw is generally used for measuring the length and the outer diameter; however, the stepped hole is formed by sequentially communicating a plurality of sections of holes with different diameters, and when the inner diameter of the stepped hole needs to be measured, the length of the inner measuring claw is limited, so that the inner measuring claw cannot be easily measured.
With respect to the related art in the above, the inventors consider that there is a drawback that it is difficult to measure the inner diameter of the stepped hole.
SUMMERY OF THE UTILITY MODEL
In order to facilitate the measurement of the internal diameter of the stepped hole, the present application provides a vernier caliper.
The application provides a vernier caliper, adopts following technical scheme:
the vernier caliper comprises a main ruler, a vernier scale connected to the main ruler in a sliding mode, two first inner measuring claws fixedly arranged on the main ruler and the vernier scale respectively, a second inner measuring claw arranged on one side, far away from the main ruler, of the first inner measuring claw at intervals, and a telescopic mechanism arranged between the first inner measuring claw and the second inner measuring claw and used for adjusting the distance between the first inner measuring claw and the second inner measuring claw.
By adopting the technical scheme, the diameter of each inner measuring hole of the stepped hole needs to be measured by a worker, when the distance between a hole to be measured in the stepped hole and the main scale is far, the distance between the first inner measuring claw and the second inner measuring claw is adjusted through the telescopic mechanism, then the second inner measuring claw is abutted against the inner wall of the hole to be measured in the stepped hole, the vernier scale is located on the main scale and moves to drive the other second inner measuring claw to move, so that the two second inner measuring claws are respectively abutted against the inner wall of the hole to be measured in the stepped hole, and the inner diameter of the hole to be measured in the stepped hole is measured; when the staff need measure the different shoulder hole of multistage diameter, the accessible telescopic machanism is adjusted and is measured the distance between the claw in first interior measurement claw and the second to be convenient for measure the internal diameter of shoulder hole.
Optionally, the telescopic mechanism includes a screw rod arranged between the first inner measuring jaw and the second inner measuring jaw, and a guide member arranged between the first inner measuring jaw and the second inner measuring jaw and used for guiding the movement of the second inner measuring jaw and limiting the rotation;
one end of the screw rod is rotatably connected with the second inner measuring claw, the other end of the screw rod is in threaded connection with the first inner measuring claw, and one end of the screw rod penetrates through the second inner measuring claw and is located on the outer side of the second inner measuring claw.
Through adopting above-mentioned technical scheme, when measuring the distance between the claw in first interior measurement claw and the second through telescopic machanism, at first rotate the screw rod, measure the removal of claw in the guide to the second after that and play the direction and restrict the second in measure the effect that the claw pivoted to the screw rod can drive in the second measure the claw to the one side removal of being close to or keeping away from first interior measurement claw, and then measured the distance between the claw in first interior measurement claw and the second.
Optionally, the guide member is a guide rod, one end of the guide rod is fixedly connected with the first inner measuring jaw, the other end of the guide rod is connected with the second inner measuring jaw in a sliding manner, a guide hole is formed in the second inner measuring jaw, and the guide rod is located in the guide hole in a sliding manner.
Through adopting above-mentioned technical scheme, the guide bar not only plays the guide effect to the removal of measuring the claw in the second, can restrict the rotation of measuring the claw in the second moreover, and measure the connection of claw and second in to first and play certain supporting role.
Optionally, the number of the guide pieces is two, and the two guide pieces are uniformly distributed on two sides of the screw rod.
By adopting the technical scheme, the two guide parts are positioned on the two sides of the screw rod, so that the two sides of the screw rod are stressed uniformly, the first inner measuring claw and the second inner measuring claw are not easy to deflect relatively, and the stability of the first inner measuring claw and the second inner measuring claw is further improved.
Optionally, one end of the guide rod, which is far away from the first inner measuring jaw, is provided with a limiting member for preventing the guide rod and the second inner measuring jaw from being separated from each other.
Through adopting above-mentioned technical scheme, the locating part makes the guide bar keep away from the difficult second that breaks away from of the one end of measuring the claw in first to the phenomenon that the guide bar breaks away from measuring the claw in the second and causes to lose or be difficult for the installation is prevented appearing.
Optionally, the limiting part is a limiting block, a sliding groove is formed in the second inner measuring claw, and the limiting block is located in the sliding groove and slides.
Through adopting above-mentioned technical scheme, when the guide bar slided, can drive the stopper and be located the spout and slide, and when the stopper removed the spout and is close to the one end of first interior measuring claw, the stopper made the guide bar can not continue to remove to block that the guide bar breaks away from in the guide hole.
Optionally, a knob is fixedly arranged at one end of the screw rod, which is far away from the first inner measuring jaw.
Through adopting above-mentioned technical scheme, the staff rotates the knob, and the knob can drive the screw rod and rotate to measure the distance between the claw in the first interior measurement claw of control and the second, the knob provides handheld position for the staff, makes things convenient for the staff to rotate the screw rod.
Optionally, a transition boss is arranged between each of the two first inner measuring claws and the main scale and between each of the two first inner measuring claws and the vernier scale.
Through adopting above-mentioned technical scheme, the transition boss has increased two first interior measuring claws respectively with main scale and vernier scale between the connection area, has reduced stress concentration to the stability of connecting between the two has been improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when workers need to measure a plurality of sections of stepped holes with different diameters, the distance between the first inner measuring claw and the second inner measuring claw can be adjusted through the telescopic mechanism, so that the inner diameter of the stepped hole can be conveniently measured;
2. the guide rod not only has a guide function on the movement of the second inner measuring jaw, but also can limit the rotation of the second inner measuring jaw and has a certain supporting function on the connection of the first inner measuring jaw and the second inner measuring jaw;
3. the limiting part enables one end, far away from the first inner measuring claw, of the guide rod to be difficult to separate from the second measuring claw, and therefore the phenomenon that the guide rod is lost or difficult to install due to the fact that the guide rod is separated from the second inner measuring claw is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a vernier caliper according to an embodiment of the present invention;
FIG. 2 is a partial schematic view showing the telescopic mechanism;
fig. 3 is a partial sectional view showing the telescopic mechanism.
Description of reference numerals: 1. a main scale; 2. a vernier scale; 3. a first inner measuring jaw; 4. a transition boss; 5. a second inner measuring jaw; 51. a chute; 6. a telescoping mechanism; 61. a screw; 62. a knob; 63. a guide bar; 64. and a limiting block.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a vernier caliper. Referring to fig. 1 and 2, the vernier caliper comprises a main ruler 1, a vernier scale 2 is arranged on the main ruler 1, and the vernier scale 2 is connected with the main ruler 1 in a sliding manner. Two first inner measuring claws 3 are fixedly arranged on the main scale 1 and the vernier scale 2 respectively, and the two first inner measuring claws 3 are parallel to each other; measure claw 3 respectively in two first and be provided with transition boss 4 between main scale 1 and the vernier scale 2, 4 bosss of transition are used for increasing two first interior measuring claws 3 respectively with main scale 1 and the vernier scale 2 between the connection area, improve the stability of connecting between the two. One side of the first inner measuring claw 3, which is far away from the main ruler 1, is provided with a second inner measuring claw 5, the second inner measuring claw 5 and the first inner measuring claw 3 are arranged at intervals, and the two second inner measuring claws 5 are also parallel to each other. A telescopic mechanism 6 is arranged between the first inner measuring claw 3 and the second inner measuring claw 5, and the telescopic mechanism 6 is used for adjusting the distance between the first inner measuring claw 3 and the second inner measuring claw 5.
The staff need measure the each interior measuring hole diameter of shoulder hole, if the hole distance that awaits measuring in the shoulder hole is far away from main scale 1, at first measure the distance between claw 3 and the second in the first regulation through telescopic machanism 6, measure the inside wall butt of claw 5 and the shoulder hole in measuring the second in after, the staff removes vernier scale 2 afterwards, vernier scale 2 drives the removal of measuring claw 5 in another second, make in two seconds measure the inner wall butt of claw 5 respectively with the shoulder hole in await measuring the hole, thereby to wait to measure the internal diameter of measuring the hole in the shoulder hole measure can.
Referring to fig. 2 and 3, the telescopic mechanism 6 includes a screw 61 disposed between the first inner measuring jaw 3 and the second inner measuring jaw 5, one end of the screw 61 is rotatably connected to the second inner measuring jaw 5, the other end of the screw is in threaded connection with the first inner measuring jaw 3, and one end of the screw 61 penetrates through the second inner measuring jaw 5 and is located outside the second inner measuring jaw 5. One end of the screw 61 penetrating through the second inner measuring jaw 5 is fixedly provided with a knob 62, and the knob 62 is used for providing a handheld part for a worker, so that the worker can conveniently rotate the screw 61.
Referring to fig. 3, two guide members are disposed between the first inner measuring jaw 3 and the second inner measuring jaw 5, the guide rod 63 is used for guiding the movement of the second inner measuring jaw 5 and limiting the rotation of the second inner measuring jaw, and the two guide members are uniformly distributed on two sides of the screw 61. The guide piece is guide bar 63, and measurement claw 5 slides in guide bar 63 one end and first interior measurement claw 3 fixed connection, the other end and the second and is connected, has seted up the guiding hole in the second on the measurement claw 5, and guide bar 63 is located the guiding hole and slides.
Referring to fig. 3, the end of the guide rod 63 away from the first inner measuring jaw 3 is provided with a limiting part, the limiting part is used for preventing the guide rod 63 and the second inner measuring jaw 5 from separating from each other, and further preventing the guide rod 63 from separating from the second inner measuring jaw 5 to cause the phenomenon of losing or being difficult to install, the limiting part is a limiting block 64, the limiting block 64 is a flat cylinder, a sliding groove 51 is formed in the second inner measuring jaw 5, and the limiting block 64 is located in the sliding groove 51 for sliding.
When the distance between the first inner measuring jaw 3 and the second inner measuring jaw 5 is adjusted through the telescopic mechanism 6, firstly, a worker rotates the knob 62, the knob 62 can drive the screw rod 61 to rotate, then the guide rod 63 plays a role in guiding the movement of the second inner measuring jaw 5 and limiting the rotation of the second inner measuring jaw 5, so that the screw rod 61 can drive the second inner measuring jaw 5 to move towards one side close to or far away from the first inner measuring jaw 3, and the distance between the first inner measuring jaw 3 and the second inner measuring jaw 5 is controlled and adjusted; when the guide rod 63 slides, the limiting block 64 is driven to slide in the sliding groove 51, and when the limiting block 64 moves to one end of the sliding groove 51 close to the first inner measuring jaw 3, the limiting block 64 prevents the guide rod 63 from moving continuously, so that the guide rod 63 is prevented from being separated from the guide hole.
The vernier caliper in the embodiment of the application has the implementation principle that: the diameter of each inner measuring hole of the stepped hole needs to be measured by a worker, if the distance between a hole to be measured in the stepped hole and the main scale 1 is far, the knob 62 is firstly rotated to control the telescopic mechanism 6 to adjust the distance between the first inner measuring claw 3 and the second inner measuring claw 5, then the second inner measuring claw 5 is abutted against the inner wall of the hole to be measured in the stepped hole, then the vernier 2 is positioned on the main scale 1 to move, the vernier 2 drives the other second inner measuring claw 5 to move, so that the two second inner measuring claws 5 are respectively abutted against the inner wall of the hole to be measured in the stepped hole, and the inner diameter of the hole to be measured in the stepped hole is measured; when the staff need measure the different shoulder hole of multistage diameter, the accessible telescopic machanism 6 is adjusted and is measured the distance between claw 3 and the second in measuring claw 5 in first to be convenient for measure the internal diameter of shoulder hole.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A vernier caliper, characterized in that: the vernier caliper comprises a main scale (1), a vernier scale (2) connected to the main scale (1) in a sliding manner, two first inner measuring claws (3) fixedly arranged on the main scale (1) and the vernier scale (2) respectively, second inner measuring claws (5) arranged at intervals on one side of the main scale (1) far away from the first inner measuring claws (3), and a telescopic mechanism (6) arranged between the first inner measuring claws (3) and the second inner measuring claws (5) and used for adjusting the distance between the first inner measuring claws and the second inner measuring claws.
2. A vernier caliper as claimed in claim 1, wherein: the telescopic mechanism (6) comprises a screw rod (61) arranged between the first inner measuring claw (3) and the second inner measuring claw (5) and a guide piece which is arranged between the first inner measuring claw (3) and the second inner measuring claw (5) and used for guiding the movement of the second inner measuring claw (5) and limiting the rotation;
one end of the screw rod (61) is rotatably connected with the second inner measuring claw (5), the other end of the screw rod is in threaded connection with the first inner measuring claw (3), and one end of the screw rod (61) penetrates through the second inner measuring claw (5) and is located on the outer side of the second inner measuring claw (5).
3. A vernier caliper as claimed in claim 2, wherein: the guide piece is a guide rod (63), one end of the guide rod (63) is fixedly connected with the first inner measuring claw (3), the other end of the guide rod is connected with the second inner measuring claw (5) in a sliding mode, a guide hole (51) is formed in the second inner measuring claw (5), and the guide rod (63) is located in the guide hole (51) in a sliding mode.
4. A vernier caliper as claimed in claim 3, wherein: the number of the guide pieces is two, and the two guide pieces are uniformly distributed on two sides of the screw rod (61).
5. A vernier calliper as claimed in claim 4, wherein: one end of the guide rod (63) far away from the first inner measuring jaw (3) is provided with a limiting piece used for preventing the guide rod (63) and the second inner measuring jaw (5) from being separated from each other.
6. A vernier calliper as claimed in claim 5, wherein: the limiting piece is a limiting piece (64), a sliding groove (52) is formed in the second inner measuring claw (5), and the limiting piece (64) is located in the sliding groove (52) and slides.
7. A vernier caliper as claimed in claim 2, wherein: and a knob (62) is fixedly arranged at one end of the screw rod (61) far away from the first inner measuring jaw (3).
8. A vernier calliper as claimed in any one of claims 1-7, wherein: transition bosses (4) are arranged between the two first inner measuring claws (3) and the main scale (1) and between the two first inner measuring claws and the vernier scale (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120978227.9U CN214666451U (en) | 2021-05-08 | 2021-05-08 | Vernier caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120978227.9U CN214666451U (en) | 2021-05-08 | 2021-05-08 | Vernier caliper |
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| Publication Number | Publication Date |
|---|---|
| CN214666451U true CN214666451U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120978227.9U Active CN214666451U (en) | 2021-05-08 | 2021-05-08 | Vernier caliper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608416A (en) * | 2022-03-18 | 2022-06-10 | 山东东益机械制造有限公司 | Detection device and detection method for addendum circle of external teeth of coupler for rail transit |
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2021
- 2021-05-08 CN CN202120978227.9U patent/CN214666451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608416A (en) * | 2022-03-18 | 2022-06-10 | 山东东益机械制造有限公司 | Detection device and detection method for addendum circle of external teeth of coupler for rail transit |
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