CN211120993U - Cambered surface internal diameter measurement block - Google Patents
Cambered surface internal diameter measurement block Download PDFInfo
- Publication number
- CN211120993U CN211120993U CN201921947699.7U CN201921947699U CN211120993U CN 211120993 U CN211120993 U CN 211120993U CN 201921947699 U CN201921947699 U CN 201921947699U CN 211120993 U CN211120993 U CN 211120993U
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- Prior art keywords
- ruler
- measuring
- rod
- linkage
- measuring rod
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- Expired - Fee Related
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- 238000005259 measurement Methods 0.000 title claims description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 description 3
- 206010066054 Dysmorphism Diseases 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a cambered surface inner diameter measuring stopper, which comprises a central rod, a first measuring rod, a second measuring rod and a linkage ruler, wherein the first measuring rod and the second measuring rod are symmetrically arranged around the central rod; the end part of the first measuring rod and the end part of the second measuring rod are rotatably connected with the end part of the central rod, and the two end parts of the linkage ruler are respectively hinged with the free end of the first measuring rod and the free end of the second measuring rod; the linkage ruler comprises a main ruler and an auxiliary ruler which is connected with the main ruler in a sliding mode, and scales are arranged on the main ruler and the auxiliary ruler; the central rod is provided with a sliding groove in a penetrating manner along the radial direction of the central rod, and the sliding groove extends along the axial direction of the central rod; both ends of the linkage ruler can be in contact with the measuring arc surface, and the linkage ruler penetrates through the sliding groove and can slide in the sliding groove. The utility model discloses be convenient for measure the internal diameter of incomplete cambered surface.
Description
Technical Field
The utility model relates to a measuring tool field, concretely relates to cambered surface internal diameter measurement stop.
Background
The arc measuring tool in the prior art mainly comprises an inside micrometer, but the inside micrometer is mostly applied to the measurement of a whole circle, and the measurement of the incomplete arc inside micrometer is inconvenient, so that a measuring stop convenient for measuring the incomplete arc is required to be designed.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a cambered surface internal diameter measurement stop, its internal diameter of being convenient for measure incomplete cambered surface.
In order to solve the technical problem, the utility model provides a cambered surface internal diameter measurement stop, including central rod, first measuring stick, second measuring stick and linkage chi, first measuring stick with the second measuring stick about central rod symmetry sets up; the end part of the first measuring rod and the end part of the second measuring rod are rotatably connected with the end part of the central rod, and the two end parts of the linkage ruler are respectively hinged with the free end of the first measuring rod and the free end of the second measuring rod; the linkage ruler comprises a main ruler and an auxiliary ruler which is connected with the main ruler in a sliding mode, and scales are arranged on the main ruler and the auxiliary ruler; the central rod is provided with a sliding groove in a penetrating manner along the radial direction of the central rod, and the sliding groove extends along the axial direction of the central rod; both ends of the linkage ruler can be in contact with the measuring arc surface, and the linkage ruler penetrates through the sliding groove and can slide in the sliding groove.
Furthermore, both ends of linkage chi all rotate and are connected with and touch the ball, touch the centre of sphere of ball with the end rotation of linkage chi is connected, touch the ball can with measure the cambered surface contact.
Furthermore, a fastener capable of being abutted against the auxiliary ruler is arranged on the main ruler in a penetrating mode, so that the main ruler and the auxiliary ruler are relatively fixed.
Furthermore, a clamping column is fixed at the hinged end of the central rod and is positioned at the centers of the first measuring rod and the second measuring rod; the clamping column is detachably connected with an angle measuring instrument to measure the rotation angle of the first measuring rod and the second measuring rod relative to the central rod.
Further, the upper surface of joint post is provided with the dysmorphism piece, angle measuring instrument is last seted up with dysmorphism piece complex draw-in groove.
Furthermore, a plurality of balls are embedded in the sliding groove, so that resistance of the linkage ruler during movement is reduced.
Furthermore, the hinged end of the central column is arranged in an arc shape.
Furthermore, a handle is sleeved at the free end of the central column.
The utility model has the advantages that:
at the measuring in-process, first measuring stick and second measuring stick all rotate around the pin joint to drive the linkage chi motion, because the linkage chi includes the main scale and can be for the vice chi of main scale motion, therefore the both ends homoenergetic of linkage chi can with the inner wall contact of the cambered surface that awaits measuring, all is provided with the scale on main scale and the vice chi, therefore can confirm the chord length that the cambered surface that awaits measuring corresponds through the reading of linkage chi.
Drawings
Fig. 1 is an overall schematic view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
the reference numbers in the figures illustrate: 1. a center pole; 11. a handle; 12. a chute; 121. a ball bearing; 13. a clamping column; 131. a shaped block; 14. an angle measuring instrument; 2. a first measuring rod; 3. a second measuring rod; 4. a linkage ruler; 41. a main scale; 42. a secondary ruler; 43. a fastener; 44. contacting the ball; 5. and (6) measuring the cambered surface to be measured.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, the utility model discloses an embodiment of cambered surface internal diameter measurement stop, including well core rod 1, first measuring stick 2, second measuring stick 3 and linkage chi 4, first measuring stick 2 and second measuring stick 3 are located well core rod 1's both sides respectively to set up about well core rod 1 symmetry. The tip of first measuring stick 2 and the tip of second measuring stick 3 all rotate with the tip of well core rod 1 and be connected, and the both ends of linkage chi 4 rotate with the free end of first measuring stick 2 and the free end of second measuring stick 3 respectively simultaneously and are connected, and linkage chi 4 includes main chi 41 and wears to establish the inside vice chi 42 of main chi 41. In the measuring process, the first measuring rod 2 and the second measuring rod 3 rotate around the hinge point, so that the linkage ruler 4 is driven to move, the linkage ruler 4 comprises a main ruler 41 and an auxiliary ruler 42 capable of moving relative to the main ruler 41, both ends of the linkage ruler 4 can be in contact with the inner wall of the cambered surface 5 to be measured, scales are arranged on the main ruler 41 and the auxiliary ruler 42, and the chord length corresponding to the cambered surface 5 to be measured can be determined through the reading of the linkage ruler 4.
Referring to fig. 1, well core rod 1's hinged end is the arc setting, because well core rod 1's tip and linkage chi 4's both ends all contact with the inner wall of cambered surface 5 that awaits measuring when measuring, therefore well core rod 1's tip is the arc setting and can increases well core rod 1 and the area of contact of cambered surface 5 that awaits measuring to reduce measuring error, improve measuring result's accuracy. In addition, both ends of the linkage ruler 4 are rotatably connected with contact balls 44, and the centers of the two contact balls 44 are connected with both ends of the linkage ruler 4 through rotating shafts. In the measuring process, the two contact balls 44 can be in contact with the inner wall of the cambered surface 5 to be measured, so that the contact area between the linkage ruler 4 and the cambered surface 5 to be measured can be increased, and the resistance of the first measuring rod 2 and the second measuring rod 3 during movement can be reduced. Meanwhile, the chord length of the cambered surface 5 to be measured is the sum of the reading of the linkage ruler 4 and the diameter of one contact ball 44.
Referring to fig. 1, when first measuring stick 2 and second measuring stick 3 rotate for well core rod 1, can drive linkage chi 4 and remove along its axial direction of perpendicular to, therefore well core rod 1 has seted up spout 12 along its radial run-through, and spout 12 can be worn to establish by above-mentioned linkage chi 4. The slide groove 12 is formed to extend in the axial direction of the center rod 1, and therefore the link scale 4 inserted into the slide groove 12 can move in the slide groove 12 according to the rotation angle of the first measuring rod 2 and the second measuring rod 3. The length of the slot 12 can be used to limit the distance of movement of the linkage 4 and thus the angle of rotation of the first measuring rod 2 and the second measuring rod 3.
Referring to fig. 1, a plurality of balls 121 are embedded in the sliding groove 12, and when the linkage scale 4 moves in the sliding groove 12, the balls 121 can convert sliding friction between the linkage scale 4 and the sliding groove 12 into rolling friction between the linkage scale 4 and the balls 121, so that resistance to movement of the linkage scale 4 can be reduced.
Referring to fig. 1 and 2, the end of the central rod 1 close to the hinge point is provided with a clamping column 13, and the clamping column 13 is located in the middle of the first measuring rod 2 and the second measuring rod 3. Detachably is connected with angular surveying appearance 14 on joint post 13, because joint post 13 is located the middle part of first measuring stick 2 and second measuring stick 3, and first measuring stick 2 and second measuring stick 3 symmetry set up simultaneously, therefore utilize angular surveying appearance 14 to be convenient for measure the turned angle of first measuring stick 2 and second measuring stick 3.
Referring to fig. 1 and 2, the upper surface of the clamping column 13 is provided with a special-shaped block 131, and meanwhile, a clamping groove matched with the special-shaped block 131 is formed in the angle measuring instrument 14, so that the rotation of the angle measuring instrument 14 can be reduced by the matching of the clamping groove and the special-shaped block 131, and the accuracy of the rotation angle of the first measuring rod 2 and the second measuring rod 3 is improved.
Referring to fig. 1, a fastening member 43 capable of abutting against the sub-scale 42 is inserted into the main scale 41, and the main scale 41 and the sub-scale 42 are fixed by the fastening member 43 so as to facilitate reading.
Referring to fig. 1, the free end of the center rod 1 is sleeved with a handle 11, and the handle 11 is convenient for operating the measurement stop of the inner diameter of the cambered surface, so as to be convenient for use.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (8)
1. A cambered surface inner diameter measuring stop is characterized by comprising a central rod, a first measuring rod, a second measuring rod and a linkage ruler, wherein the first measuring rod and the second measuring rod are symmetrically arranged around the central rod; the end part of the first measuring rod and the end part of the second measuring rod are rotatably connected with the end part of the central rod, and the two end parts of the linkage ruler are respectively hinged with the free end of the first measuring rod and the free end of the second measuring rod; the linkage ruler comprises a main ruler and an auxiliary ruler which is connected with the main ruler in a sliding mode, and scales are arranged on the main ruler and the auxiliary ruler; the central rod is provided with a sliding groove in a penetrating manner along the radial direction of the central rod, and the sliding groove extends along the axial direction of the central rod; both ends of the linkage ruler can be in contact with the measuring arc surface, and the linkage ruler penetrates through the sliding groove and can slide in the sliding groove.
2. The inner diameter measurement stop of an arc surface of claim 1, wherein both ends of the linkage ruler are rotatably connected with contact balls, the center of the contact ball is rotatably connected with the ends of the linkage ruler, and the contact ball can contact with the measurement arc surface.
3. The inner diameter measurement stop of an arc surface of claim 1, wherein a fastener capable of abutting against the auxiliary ruler is arranged on the main ruler in a penetrating mode so as to relatively fix the main ruler and the auxiliary ruler.
4. The inner diameter measurement stop for the arc surface of claim 1, wherein a clamping column is fixed on the hinged end of the central rod, and the clamping column is positioned at the centers of the first measuring rod and the second measuring rod; the clamping column is detachably connected with an angle measuring instrument to measure the rotation angle of the first measuring rod and the second measuring rod relative to the central rod.
5. The inner diameter measurement stop for the arc surface of claim 4, wherein a special-shaped block is arranged on the upper surface of the clamping column, and a clamping groove matched with the special-shaped block is formed in the angle measuring instrument.
6. The inner diameter measurement stop for an arc surface of claim 1, wherein a plurality of balls are embedded in the sliding grooves to reduce resistance of the linkage ruler during movement.
7. The inner diameter measurement stop of cambered surface of claim 1 wherein the hinged end of the central rod is arcuately disposed.
8. The inner diameter measurement stop of cambered surface of claim 1, characterized in that the free end of the central rod is sleeved with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921947699.7U CN211120993U (en) | 2019-11-12 | 2019-11-12 | Cambered surface internal diameter measurement block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921947699.7U CN211120993U (en) | 2019-11-12 | 2019-11-12 | Cambered surface internal diameter measurement block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211120993U true CN211120993U (en) | 2020-07-28 |
Family
ID=71691413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921947699.7U Expired - Fee Related CN211120993U (en) | 2019-11-12 | 2019-11-12 | Cambered surface internal diameter measurement block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211120993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551581A (en) * | 2021-07-16 | 2021-10-26 | 钱源 | Direct-reading type electric power large-caliber pipeline inner diameter measuring device |
-
2019
- 2019-11-12 CN CN201921947699.7U patent/CN211120993U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551581A (en) * | 2021-07-16 | 2021-10-26 | 钱源 | Direct-reading type electric power large-caliber pipeline inner diameter measuring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |