A distance measuring device

Abstract

A distance measuring device includes a clamping block detachably fixed to one of the objects to be measured, and the clamping block is provided with a reference surface in contact with the surface to be measured of the object to be measured, a measuring hole pointing to the other object to be measured and a positioning groove for cutting off the measuring hole are provided on the clamping block, and a measuring rod of a dial indicator is located in the middle of the measuring hole and abuts against a partition in the positioning groove or passes through the measuring hole and abuts against the other object to be measured, and the distance between the two objects to be measured is obtained by the reading changes of these two states. The structure of the distance measuring device is extremely simple, and can meet the use needs of various different environments, and its application range is extremely wide; at the same time, the device is easy to operate, and can measure the distance between the opposite surfaces of the two objects to be measured very quickly and accurately, thereby effectively improving the work efficiency and accuracy of the measurement.

Description

Technical Field

[0001] The invention relates to a length measuring tool, in particular to a measuring device for measuring the distance between opposite surfaces of two objects. Background Art

[0002] Common measuring tools such as rulers, angle squares, micrometers, vernier calipers, etc. have different application scopes and usage conditions, and can meet different types of measurement needs. However, for some special environments, existing measuring tools are still difficult to effectively meet the needs. For example, in the installation and construction of nuclear island equipment, it is necessary to measure the horizontal support gap between the upper and lower parts of the nuclear island steam generator during the commissioning stage. However, due to the large size of the steam generator, the small gap, the large number of measuring points, and the extremely high temperature of the environment, it is difficult to measure effectively, and the existing measuring tools are also difficult to meet the measurement needs. Summary of the invention

[0003] The object of the present invention is to provide a measuring device which has a simple structure and can conveniently and quickly measure the distance between two opposite surfaces, so as to improve the working efficiency and accuracy of the measurement.

[0004] The spacing measuring device described in the present invention includes a clamping block that can be detachably fixed on one of the objects to be measured, and the clamping block is provided with a reference surface that contacts the surface to be measured of the object to be measured, and the clamping block is also provided with a measuring hole and a positioning groove, the axis of the measuring hole is perpendicular to the reference surface, the positioning groove is arranged along another plane parallel to the reference surface, and the measuring hole passes through the positioning groove; there are also a partition and a dial indicator for measuring readings, the partition can be removably placed in the positioning groove of the clamping block and can cover the measuring hole, the measuring rod of the dial indicator passes through the measuring hole and the probe at the end of the measuring rod is against the surface of the other object to be measured.

[0005] The distance measuring device described in the present invention is a dial indicator which is a universal length measuring tool made of a precision rack and pinion mechanism, and is composed of a probe, a measuring rod, a shockproof spring, a rack, a gear, a hairspring, a round dial and a pointer. After the clamping block is fixed on one of the objects to be measured, the reference surface on the clamping block contacts the surface to be measured of the object to be measured, that is, one of the opposite surfaces of the two objects. Then, the partition and the dial indicator rod are sequentially placed in the positioning groove and the measuring hole of the clamping block. At this time, the measuring hole is blocked by the partition at the positioning groove, and the probe at the end of the dial indicator rod is against the partition, and the dial indicator in this state is adjusted to zero scale. Then, the partition is removed from the positioning groove, and the dial indicator rod will pass through the measuring hole of the clamping block and be against the surface of another object to be measured, and the dial indicator will display a reading. After recording the reading, the reading can be added and subtracted from the set distance between the reference surface and the positioning groove, thereby obtaining the distance between the opposite surfaces of the two objects to be measured. The structure of the distance measuring device is extremely simple, and can meet the use needs of various different environments, and its application range is extremely wide; at the same time, the device is easy to operate, and can extremely quickly and accurately measure the distance between the opposite surfaces of two objects to be measured, thereby effectively improving the working efficiency and accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of a spacing measurement device.

[0007] Figure 2 It is a schematic diagram of the exploded structure of the spacing measuring device. DETAILED DESCRIPTION

[0008] A spacing measuring device comprises a clamping block 1 which is detachably fixed on one of the objects to be measured, and the clamping block is provided with a reference surface 2 which contacts the surface to be measured of the object to be measured, and the clamping block is also provided with a measuring hole 3 and a positioning groove 4, the axis of the measuring hole is perpendicular to the reference surface, the positioning groove is arranged along another plane parallel to the reference surface, and the measuring hole passes through the positioning groove; there are also a partition plate 5 and a dial indicator 6 for measuring readings, the partition plate can be removably placed in the positioning groove of the clamping block and can cover the measuring hole, a measuring rod 7 of the dial indicator passes through the measuring hole, and a probe at the end of the measuring rod abuts against the surface of the other object to be measured.

[0009] In the spacing measuring device, a clamping block 1 is provided with an inwardly recessed slot 8 on one side facing one of the objects to be measured, and one side wall of the slot is a reference surface 2; a locking screw hole 9 is also provided on the clamping block, and the end of the locking screw hole is arranged on the other side wall in the slot, and a locking screw 10 screwed to the locking screw hole passes through the locking screw hole and abuts against the object to be measured, thereby fixing the clamping block on the object to be measured. In addition, a handle 11 for hand-holding can also be provided on the clamping block 1 to facilitate operation by personnel.

[0010] like Figure 1 , 2 As shown, the clamping block is to be fixed on one of the objects to be measured, and the side of the clamping slot facing the other object to be measured is the reference surface; in addition, the positioning groove on the clamping block is arranged between the clamping block reference surface and the other object to be measured, so that there is a set distance value a between the reference surface and the positioning groove.

[0011] When measuring, after the clamping block is fixed on one of the objects to be measured, the reference surface on the clamping block contacts the surface to be measured of the object to be measured, that is, one of the opposite surfaces of the two objects; then the partition and the dial indicator rod are placed into the positioning groove and measuring hole of the clamping block in turn; at this time, the measuring hole is blocked by the partition at the positioning groove, and the probe at the end of the dial indicator rod is against the partition, and the dial indicator in this state is adjusted to zero scale; then, the partition is removed from the positioning groove, and the dial indicator rod will pass through the measuring hole of the clamping block and against the surface of the other object to be measured, and the dial indicator will display a reading of b. Then the distance between the two objects to be measured is: L=a+b.

[0012] Similarly, if the positioning groove is set on the plane where the reference surface is located, then: L = b; if the positioning groove is set outside the reference surface facing away from the other object to be measured, then: L = ba. In addition, the clamping block 1 can be provided with a plurality of positioning grooves 4 to increase the application range of the spacing measurement device and meet the use requirements of different environments.

[0013] The structure of the distance measuring device is extremely simple, and can meet the use needs of various different environments, and its application range is extremely wide; at the same time, the device is easy to operate, and can extremely quickly and accurately measure the distance between the opposite surfaces of two objects to be measured, thereby effectively improving the working efficiency and accuracy of the measurement.

Claims

1. A spacing measuring device, Features: The invention comprises a clamping block (1) which is detachably fixed on one of the objects to be measured, and a reference surface (2) which contacts the surface to be measured of the object to be measured is provided on the clamping block, and a measuring hole (3) and a positioning groove (4) are also provided on the clamping block, wherein the axis of the measuring hole is perpendicular to the reference surface, the positioning groove is arranged along another plane parallel to the reference surface, and the measuring hole passes through the positioning groove; and a partition plate (5) and a dial indicator (6) for measuring readings are also provided, wherein the partition plate is removably placed in the positioning groove of the clamping block and can cover the measuring hole, and a measuring rod (7) of the dial indicator passes through the measuring hole and a probe at the end of the measuring rod abuts against the surface of the other object to be measured.

2. The distance measuring device according to claim 1, Features: A clamping block (1) is provided with an inwardly recessed clamping groove (8) on one side facing one of the objects to be measured, and one side wall of the clamping groove is a reference surface (2); a locking screw hole (9) is also provided on the clamping block, the end of the locking screw hole is arranged on the other side wall in the clamping groove, and a locking screw (10) screwed to the locking screw hole passes through the locking screw hole and abuts against the object to be measured.

3. The distance measuring device according to claim 1, Features: A plurality of positioning grooves (4) are provided on the clamping block (1).

4. The distance measuring device according to claim 1, 2 or 3, Features: The clamping block (1) is provided with a handle (11) for hand-holding.

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