Measuring tool

Abstract

The utility model provides a measuring tool, which comprises a first measuring rod, at least one second measuring rod, a third measuring rod and a connecting structure, and is characterized in that the length direction of the at least one second measuring rod is parallel to the length direction of the first measuring rod; the third measuring rod comprises a first section and a second section which are perpendicular to each other, the length direction of the first section is parallel to the length direction of the second measuring rod, and the second section is perpendicularly connected with the measuring rod of the dial indicator; the connecting structure comprises a first connecting structure and a second connecting structure, one end of the second measuring rod is connected with the first measuring rod through the first connecting structure, and the second measuring rod can slide relative to the first connecting structure in the length direction of the second measuring rod and is maintained at the position after sliding; the other end of the second measuring rod is connected with one end, far away from the second section, of the first section through a second connecting structure, and the first section can slide relative to the second connecting structure in the length direction of the first section and is maintained at the position after sliding. The size of the measuring tool is reduced through sliding arrangement, and the measuring tool can be moved, carried and stored conveniently.

Description

Technical Field

[0001] The present disclosure relates to the field of measurement technology, and in particular to a measuring tool. Background Art

[0002] Large-scale mechanical equipment (such as large-scale equipment in the petrochemical, coal chemical and cement plant industries) needs to be regularly inspected for assembly accuracy during use. If there is any deviation in assembly accuracy, adjustments should be made to ensure the stable operation of the mechanical equipment and avoid problems such as vibration, noise and wear during the operation of the mechanical equipment, thereby extending the service life of the mechanical equipment.

[0003] In the related art, a large ruler is used to measure various dimensions of mechanical equipment during maintenance. However, the large ruler is bulky and inconvenient to move, carry, and store. Utility Model Content

[0004] The present disclosure provides a measuring tool, which can reduce its volume through relative sliding between different structural parts, so that it can be conveniently moved, carried and stored.

[0005] In order to solve the above technical problems, the present disclosure provides a measuring tool, which may include: a first measuring rod, at least one second measuring rod, a third measuring rod and a connecting structure, the length direction of the at least one second measuring rod is parallel to the length direction of the first measuring rod; the third measuring rod includes: a first section and a second section perpendicular to each other, the length direction of the first section is parallel to the length direction of the second measuring rod, and the second section is vertically connected to the measuring rod of the dial indicator; the connecting structure includes: a first connecting structure and a second connecting structure, one end of the second measuring rod is connected to the first measuring rod through the first connecting structure, and the second measuring rod can slide relative to the first connecting structure in its own length direction and maintain its position after sliding; the other end of the second measuring rod is connected to an end of the first section away from the second section through the second connecting structure, and the first section can slide relative to the second connecting structure in its own length direction and maintain its position after sliding.

[0006] In some embodiments, a limit block is provided at the end of the first measuring rod away from the second section, the limit block is opposite to the second section, and the second section is movably connected to the measuring rod, so that the head of the measuring rod of the dial indicator away from the dial end is in a first orientation or a second orientation; in the first orientation, the head is located on the side of the second section away from the first section; in the second orientation, the head is located on the side of the second section close to the first section.

[0007] In some embodiments, the second section is provided with a first through hole; the measuring rod is detachably inserted into the first through hole and is fixed relative to the first through hole after being positioned in the first through hole.

[0008] In some embodiments, a first distance block is provided at one end of the first measuring rod close to the second section; a second distance block is provided at one end of the second measuring rod away from the first connecting structure; the limit block, the first distance block and the second distance block are located on the same side of the length direction of the measuring tool.

[0009] In some embodiments, the second measuring rod is provided with a first scale, the zero scale of the first scale is located at one end of the second measuring rod close to the first section, and the value of the first scale gradually increases from one end close to the first section to one end close to the first measuring rod; the first section is provided with a second scale, the zero scale of the second scale is located at one end of the first section close to the second section, and the value of the second scale gradually increases from one end close to the second section to one end close to the second measuring rod; the measuring rod is provided with a third scale, the zero scale of the third scale corresponds to the position of the table header, and the third scale gradually increases in the direction close to the first measuring rod.

[0010] In some embodiments, the first measuring rod is hollow, and one end of the second measuring rod extends from the end of the first measuring rod close to the third measuring rod into the hollow of the first measuring rod and can slide relative to the first measuring rod; the first connecting structure includes: a first connecting member and a first fastener; the first connecting member is provided with a first sleeve hole to be sleeved on the end of the first measuring rod close to the third measuring rod and fixed relative to the first measuring rod, and a circle of inner surface of the first sleeve hole is opposite to the circumferential side surface of the second measuring rod; the first fastener is provided with a second sleeve hole to be slidably sleeved on the second measuring rod and can be sleeved on a position of the first connecting member away from a circle surface of the second measuring rod when subjected to a first force, and the first fastener squeezes the first connecting member toward the direction of the second measuring rod.

[0011] In some embodiments, the outer diameter of a circle surface of the first connecting member facing away from the second measuring rod tends to increase from one end close to the second section to the end away from the second section, and a circle surface of the first connecting member facing away from the second measuring rod is provided with a first thread; the first fastener is provided with a second thread adapted to the first thread.

[0012] In some embodiments, the second measuring rod is hollow, and the end of the first section away from the second section extends into the hollow of the second measuring rod and can slide relative to the second measuring rod; the second connecting structure includes: a second connecting member and a second fastener; the second connecting member is provided with a third sleeve hole to be sleeved on the end of the second measuring rod away from the first measuring rod and fixed relative to the second measuring rod, and a circle of inner surface of the third sleeve hole is opposite to the circumferential side surface of the first section; the second fastener is provided with a fourth sleeve hole to be slidably sleeved on the first section and can be sleeved on a circle of surface of the second connecting member away from the first section when subjected to a second force, and the second fastener squeezes the second connecting member toward the direction of the first section.

[0013] In some embodiments, the outer diameter of a circle surface of the second connecting member facing away from the first section tends to increase from one end close to the second section to the end away from the second section, and a third thread is provided on the circle surface of the second connecting member facing away from the first section; the second fastener is provided with a fourth thread adapted to the third thread.

[0014] In some embodiments, the number of the second measuring rod is one, and the second measuring rod is retractable in the length direction thereof; or, the number of the second measuring rod is greater than three, and the second measuring rods are detachably connected in sequence.

[0015] Through the above technical solution, the present invention provides a measuring tool, which includes: a first measuring rod, a second measuring rod, a third measuring rod and a connecting structure. The first measuring rod and the second measuring rod are connected by a first connecting structure in the connecting structure, and the second measuring rod and the third measuring rod are connected by a second connecting structure in the connecting structure. The measuring rod of the dial indicator connected to the third measuring rod extends along the measuring direction, and the second measuring rod can slide relative to the first connecting structure in the measuring direction, and the third measuring rod can slide relative to the second connecting structure in the measuring direction. In this way, the length of the measuring tool in the measuring direction can be adjusted to measure distances of different lengths; in addition, before moving, carrying, and storing, the second measuring rod and the third measuring rod can be slid in turn toward the end of the first measuring rod away from the second measuring rod to reduce the volume of the measuring tool, thereby facilitating the movement, carrying, and storage of the measuring tool.

[0016] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure and to implement them according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the technical solutions in the present disclosure or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings.

[0018] Figure 1 A cross-sectional view of the measuring tool (the dial head is in the first orientation) provided by the present disclosure;

[0019] Figure 2 A measurement view of the measuring tool (the dial head is in the first orientation) provided by the present disclosure;

[0020] Figure 3 A cross-sectional view of the measuring tool (the dial head is in the second orientation) provided by the present disclosure;

[0021] Figure 4 A measurement view of the measuring tool (the dial head is in the second orientation) provided by the present disclosure.

[0022] Explanation of reference signs:

[0023] 10, measuring tool; 11, first measuring rod; 111, limiting block; 112, first distance block; 12, second measuring rod; 121, second distance block; 13, third measuring rod; 131, first section; 132, second section; 1321, first through hole; 14, first connecting structure; 141, first connecting piece; 142, first fastener; 15, second connecting structure; 151, second connecting piece; 152, second fastener; 16, dial gauge; 161, measuring rod; 162, dial plate; 163, dial head; 21, first surface to be measured; 22, second surface to be measured; 23, third surface to be measured; 24, fourth surface to be measured. DETAILED DESCRIPTION

[0024] The embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. The detailed description and drawings of the following embodiments are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0025] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0026] It should be noted that, in the description of this disclosure, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.

[0028] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0029] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] In the related art, a large ruler is used to measure various dimensions of mechanical equipment during maintenance. However, the large ruler is bulky and inconvenient to move, carry, and store.

[0032] In view of the above technical problems, the present disclosure provides a measuring tool 10, which can measure the measured distance along the measuring direction, and may include: a first measuring rod 11, a second measuring rod 12, a third measuring rod 13 and a connecting structure, the first measuring rod 11 and the second measuring rod 12 are connected by a first connecting structure 14 in the connecting structure, the second measuring rod 12 and the third measuring rod 13 are connected by a second connecting structure 15 in the connecting structure, the measuring rod 161 of the dial indicator 16 connected to the third measuring rod 13 extends along the measuring direction, and the second measuring rod 12 can slide relative to the first connecting structure 14 in the measuring direction, and the third measuring rod 13 can slide relative to the second connecting structure 15 in the measuring direction. In this way, the length of the measuring tool 10 in the measuring direction can be adjusted to measure distances of different lengths; in addition, before moving, carrying, or storing, the second measuring rod 12 and the third measuring rod 13 can be slid in sequence toward the end of the first measuring rod 11 away from the second measuring rod 12, so that the volume of the measuring tool 10 is reduced, thereby facilitating the movement, carrying, and storage of the measuring tool 10.

[0033] See also Figures 1 to 4 As shown, the measuring tool 10 may include: a first measuring rod 11, at least one second measuring rod 12, a third measuring rod 13 and a connecting structure, wherein the length direction of the second measuring rod 12 is parallel to the length direction of the first measuring rod 11; the third measuring rod 13 includes: a first section 131 and a second section 132 perpendicular to each other, the length direction of the first section 131 is parallel to the length direction of the second measuring rod 12, and the second section 132 is vertically connected to the measuring rod 161 of the dial indicator 16; the connecting structure includes: a first connecting structure 14 and a second connecting structure 15, one end of the second measuring rod 12 is connected to the first measuring rod 11 through the first connecting structure 14, and the second measuring rod 12 can slide relative to the first connecting structure 14 in its own length direction and maintain its position after sliding; the other end of the second measuring rod 12 is connected to an end of the first section 131 away from the second section 132 through the second connecting structure 15, and the first section 131 can slide relative to the second connecting structure 15 in its own length direction and maintain its position after sliding.

[0034] The length direction of the first measuring rod 11 is also the extension direction of the first measuring rod 11, for example: Figures 1 to 4 As shown, the length direction / extension direction of the first measuring rod 11 is the left-right extension direction. The first measuring rod 11 can be a rod-shaped structure with a circular, rectangular or other cross-sectional profile; the first measuring rod 11 can be a solid or hollow structure.

[0035] The second measuring rod 12 has a length direction which is also the extension direction of the second measuring rod 12, for example: Figures 1 to 4As shown, the length direction / extension direction of the second measuring rod 12 is the direction of left-right extension. The length direction of the second measuring rod 12 is parallel to the length direction of the first measuring rod 11. The axis of the first measuring rod 11 and the axis of the second measuring rod 12 can be two parallel lines, or they can be as follows: Figures 1 to 4 The axis of the first measuring rod 11 and the axis of the second measuring rod 12 are collinear. The second measuring rod 12 can be a rod-shaped structure with a circular, rectangular, or other cross-sectional profile; the second measuring rod 12 can be solid or hollow. If there are multiple second measuring rods 12, the multiple second measuring rods 12 can be detachably connected in sequence along the measuring direction of the measuring tool 10. Some of the second measuring rods 12 can be removed to shorten the length formed by all the second measuring rods 12, thereby enabling the length of the measuring tool 10 in the measuring direction to be adjusted, thereby measuring distances of varying lengths.

[0036] The length direction of the first section 131 of the third measuring rod 13 is also the extension direction of the first section 131, for example: Figures 1 to 4 As shown, the length / extension direction of the first section 131 is a left-right extension direction; the second section 132 can correspond to one side of the extension direction of the first section 131, or can correspond to the other side of the extension direction of the first section 131. The first section 131 and the second section 132 can be solid or hollow structures; the first section 131 and the second section 132 can be solid or hollow structures. The second section 132 is connected to the dial indicator 16, which includes a dial 162 and a measuring rod 161. The measuring rod 161 is located outside the dial 162 and is connected to the dial 162. The measuring rod 161 is perpendicularly connected to the second section 132 so as to be parallel to the first section 131 of the first measuring rod 11, the second measuring rod 12, and the third measuring rod 13.

[0037] The connecting structure includes a first connecting structure 14 and a second connecting structure 15. The first connecting structure 14 connects the first measuring rod 11 and the second measuring rod 12, and enables the second measuring rod 12 to slide relative to the first connecting structure 14 in its own length direction and maintain its position after sliding, thereby adjusting the total length of the first measuring rod 11 and the second measuring rod 12 in the measuring direction; the second connecting structure 15 connects the second measuring rod 12 and the first section 131 of the third measuring rod 13, and enables the first section 131 of the third measuring rod 13 to slide relative to the second connecting structure 1 in its own length direction. The measuring tool 10 can slide and maintain its position after sliding, thereby adjusting the total length of the second measuring rod 12 and the first section 131 in the measuring direction. In this way, the total length of the first measuring rod 11, the second measuring rod 12, the first section 131 of the third measuring rod 13, and the measuring rod 161 of the dial indicator 16 in the measuring direction can be adjusted to achieve measurement of different distances. At the same time, the total length of the measuring tool 10 in the measuring direction can be reduced by relative sliding, thereby reducing the size of the measuring tool 10, thereby making it convenient to move, carry, and store the measuring tool 10.

[0038] In one example, see Figure 1 and Figure 2 As shown, the measuring tool 10 may include: a first measuring rod 11, a second measuring rod 12, a third measuring rod 13 and a connecting structure, wherein the axis of the second measuring rod 12 is collinear with the axis of the first measuring rod 11; the third measuring rod 13 includes: a first section 131 and a second section 132 perpendicular to each other, wherein the axis of the first section 131 is collinear with the axis of the second measuring rod 12, and the second section 132 is vertically connected to the measuring rod 161 of the dial indicator 16; the connecting structure includes: a first connecting structure 14 and a second connecting structure 15, wherein one end of the second measuring rod 12 is connected to the first measuring rod 11 through the first connecting structure 14, and the second measuring rod 12 can slide relative to the first connecting structure 14 in its own length direction and maintain its position after sliding; the other end of the second measuring rod 12 is connected to the first section 131 through the second connecting structure 15, and the first section 131 can slide relative to the second connecting structure 15 in its own length direction and maintain its position after sliding. The head 163 of the measuring rod 161 is located on a side of the second section 132 away from the first section 131 .

[0039] When measuring the distance between the first surface to be measured 21 and the second surface to be measured 22 opposite to each other, one method of using the measuring tool 10 is as follows:

[0040] S101: placing the end of the first measuring rod 11 away from the dial indicator 16 against the first measuring surface 21;

[0041] S102: Slide the second measuring rod 12 relative to the first connecting structure 14, and slide the third measuring rod 13 relative to the second measuring rod 12, so that the dial head 163 of the dial indicator 16 abuts against the second measuring surface 22 and presses the second measuring surface 22;

[0042] S103: Swing the dial 162 of the dial indicator 16 to slide the dial head 163 up and down and left and right on the second surface to be measured 22 until the dial indicator 16 displays a minimum value. At this time, adjust the large pointer of the dial indicator 16 to "0";

[0043] S104: Determine the dimension between the end of the first measuring rod 11 away from the dial indicator 16 and the gauge head 163. This dimension is the distance between the first measured surface 21 and the second measured surface 22. The dimension between the end of the first measuring rod 11 away from the dial indicator 16 and the gauge head 163 can be measured using a long-distance tape measure. Alternatively, a short-distance tape measure, ruler, or other tool can be used to measure a first dimension from one end of the first measuring rod 11 to the other end of the first measuring rod 11, a second dimension of the portion of the second measuring rod 12 not facing the first measuring rod 11, a third dimension of the portion of the first section 131 of the third measuring rod 13 not facing the second measuring rod 12, and a fourth dimension of the portion of the measuring rod 161 corresponding to the second section 132 away from the first section 131. The sum of the first, second, third, and fourth dimensions is the dimension between the end of the first measuring rod 11 away from the dial indicator 16 and the gauge head 163.

[0044] When measuring the parallelism between the first surface to be measured 21 and the second surface to be measured 22 relative to each other, one method of using the measuring tool 10 is as follows:

[0045] S201: The end of the first measuring rod 11 away from the dial indicator 16 is brought into contact with the first measuring surface 21;

[0046] S202: Slide the second measuring rod 12 relative to the first connecting structure 14, and slide the third measuring rod 13 relative to the second measuring rod 12, so that the dial head 163 of the dial indicator 16 abuts against the second measuring surface 22 and presses the second measuring surface 22;

[0047] S203: Swing the dial 162 of the dial indicator 16 to slide the dial head 163 up and down and left and right on the second surface to be measured 22 until the dial indicator 16 displays a minimum value. At this time, adjust the large pointer of the dial indicator 16 to "0";

[0048] S204: The measuring tool 10 is translated between the first surface to be measured 21 and the second surface to be measured 22. After the translation, the reading of the dial indicator 16 is read. The read value is the parallelism of the first surface to be measured 21 and the second surface to be measured 22. For example, if the read value is "±0.12 mm", the non-parallelism between the first surface to be measured 21 and the second surface to be measured 22 is |0-(±0.12)|=0.12 mm.

[0049] In this embodiment, the measuring tool 10 includes: a first measuring rod 11, a second measuring rod 12, a third measuring rod 13 and a connecting structure. The first measuring rod 11 and the second measuring rod 12 are connected by a first connecting structure 14 in the connecting structure, and the second measuring rod 12 and the third measuring rod 13 are connected by a second connecting structure 15 in the connecting structure. The measuring rod 161 of the dial indicator 16 connected to the third measuring rod 13 extends along the measuring direction, and the second measuring rod 12 can slide relative to the first connecting structure 14 in the measuring direction, and the third measuring rod 13 can slide relative to the second connecting structure 15 in the measuring direction. In this way, the length of the measuring tool 10 in the measuring direction can be adjusted to measure distances of different lengths; in addition, before moving, carrying, or storing, the second measuring rod 12 and the third measuring rod 13 can be slid in sequence toward the end of the first measuring rod 11 away from the second measuring rod 12 to reduce the volume of the measuring tool 10, thereby facilitating the movement, carrying, and storage of the measuring tool 10.

[0050] In some embodiments, see Figures 1 to 4 As shown, a limit block 111 is provided at the end of the first measuring rod 11 away from the second section 132, the limit block 111 is opposite to the second section 132, and the second section 132 is movably connected to the measuring rod 161, so that the header 163 of the measuring rod 161 of the dial indicator 16 away from the dial 162 is in a first orientation or a second orientation; in the first orientation, the header 163 is located on the side of the second section 132 away from the first section 131; in the second orientation, the header 163 is located on the side of the second section 132 close to the first section 131.

[0051] In one example, see Figure 3 and Figure 4 As shown, the measuring tool 10 may include: a first measuring rod 11, a second measuring rod 12, a third measuring rod 13 and a connecting structure, wherein the length direction of the second measuring rod 12 is parallel to the length direction of the first measuring rod 11; the third measuring rod 13 includes: a first section 131 and a second section 132 perpendicular to each other, wherein the length direction of the first section 131 is parallel to the length direction of the second measuring rod 12, and the second section 132 is perpendicularly connected to the measuring rod 161 of the dial indicator 16; the connecting structure includes: a first connecting structure 14 and a second connecting structure 15, wherein one end of the second measuring rod 12 is connected to the first measuring rod 11 via the first connecting structure 14, and the second measuring rod 12 can slide relative to the first connecting structure 14 in its own length direction and maintain its position after sliding; the other end of the second measuring rod 12 is connected to the first section 131 via the second connecting structure 15, and the first section 131 can slide relative to the second connecting structure 15 in its own length direction and maintain its position after sliding; wherein, the gauge head 163 of the measuring rod 161 is located on the side of the second section 132 close to the first section 131.

[0052] When measuring the distance between the third surface to be measured 23 and the fourth surface to be measured 24 facing each other, one method of using the measuring tool 10 is as follows:

[0053] S301: The surface of the limiting block 111 close to the second measuring rod 12 is brought into contact with the third measuring surface 23;

[0054] S302: Slide the second measuring rod 12 relative to the first connecting structure 14, and slide the third measuring rod 13 relative to the second measuring rod 12, so that the dial head 163 of the dial indicator 16 abuts against the fourth measuring surface 24 and presses the fourth measuring surface 24;

[0055] S303: Swing the dial 162 of the dial indicator 16 to slide the dial head 163 up and down and left and right on the second surface to be measured 22 until the dial indicator 16 displays a minimum value. At this time, adjust the large pointer of the dial indicator 16 to "0";

[0056] S304 : Determine the dimension between the limit block 111 and the gauge head 163 , which is the distance between the third surface to be measured 23 and the fourth surface to be measured 24 .

[0057] When measuring the parallelism between the third surface to be measured 23 and the fourth surface to be measured 24 facing each other, one method of using the measuring tool 10 is as follows:

[0058] S401: The surface of the limiting block 111 close to the second measuring rod 12 is brought into contact with the third measuring surface 23;

[0059] S402: Slide the second measuring rod 12 relative to the first connecting structure 14, and slide the third measuring rod 13 relative to the second measuring rod 12, so that the dial head 163 of the dial indicator 16 abuts against the fourth measuring surface 24 and presses the fourth measuring surface 24;

[0060] S403: Swing the dial 162 of the dial indicator 16 to slide the dial head 163 up and down and left and right on the second surface to be measured 22 until the dial indicator 16 displays a minimum value. At this time, adjust the large pointer of the dial indicator 16 to "0";

[0061] S404: The measuring tool 10 is translated between the third surface to be measured 23 and the fourth surface to be measured 24. After the translation, the reading of the dial indicator 16 is read. The read value is the parallelism of the third surface to be measured 23 and the fourth surface to be measured 24. For example, if the read value is "±0.12mm", the non-parallelism of the third surface to be measured 23 and the fourth surface to be measured 24 is |0-(±0.12)|=0.12mm.

[0062] In this way, when measuring the distance and parallelism of the first measured surface 21 and the second measured surface 22 relative to each other, the dial indicator 16 can be placed in the first orientation; when measuring the third measured surface 23 and the fourth measured surface 24 opposite to each other, the dial indicator 16 can be placed in the second orientation, and the third measured surface 23 and the fourth measured surface 24 can be clamped by the limit block 111 and the gauge head 163.

[0063] In some embodiments, see Figures 1 to 4 As shown, the second section 132 defines a first through hole 1321 ; the measuring rod 161 is detachably inserted into the first through hole 1321 , and is fixed relative to the first through hole 1321 after being positioned in the first through hole 1321 .

[0064] That is to say, the measuring rod 161 can pass through the first through hole 1321 so that the header 163 is opposite to the limit block 111 and can be maintained in this state (i.e., in the first orientation state); the measuring rod 161 can also pass through the first through hole 1321 so that the header 163 is opposite to the limit block 111 and can be maintained in this state (i.e., in the second orientation state). Here, the inner wall of the first through hole 1321 can be provided with an elastic layer so that the measuring rod 161 can be interference fit in the first through hole 1321 to achieve penetration and maintenance in the first through hole 1321, and can be removed from the first through hole 1321; the inner wall of the first through hole 1321 can also be provided with a spiral first concave-convex structure, and the measuring rod 161 is provided with a second concave-convex structure adapted to the first concave-convex structure. The measuring rod 161 can enter the first through hole 1321 by rotation and achieve penetration and maintenance in the first through hole 1321 through the cooperation of the first concave-convex structure and the second concave-convex structure, and can be removed from the first through hole 1321 by rotation in the opposite direction; the detachable setting between the first through hole 1321 and the measuring rod 161 can also be other settings.

[0065] In some embodiments, see Figures 1 to 4 As shown, a first distance block 112 is provided at one end of the first measuring rod 11 close to the second section 132; a second distance block 121 is provided at one end of the second measuring rod 12 away from the first connecting structure 14; the limit block 111, the first distance block 112 and the second distance block 121 are all located on one side of the length direction of the measuring tool 10.

[0066] That is to say, a limit block 111 and a first distance block 112 are respectively provided at both ends of the first measuring rod 11 in the length direction, and a second distance block 121 is provided at the end of the second measuring rod 12 in the length direction away from the limit block 111. In this way, the first size mentioned above can be obtained by measuring the sum of the distance between the limit block 111 and the first distance block 112 and the thickness of the limit block 111 and the thickness of the first distance block 112. The second size mentioned above can be obtained by measuring the sum of the distance between the first distance block 112 and the second distance block 121 and the thickness of the second distance block 121. The third size can be obtained by measuring the sum of the distance between the second distance block 121 and the second section 132 and the thickness of the second section 132. In this way, with the cooperation of the limit block 111, the first distance block 112, the second distance block 121 and the second section 132, the first size, the second size and the third size can be obtained respectively, and the setting of the limit block 111, the first distance block 112 and the second distance block 121 can provide a reference for the first size, the second size and the third size when measuring, so as to improve the measurement accuracy.

[0067] In some embodiments, the second measuring rod 12 is provided with a first scale, the zero scale of the first scale is located at the end of the second measuring rod 12 close to the first section 131, and the value of the first scale gradually increases from the end close to the first section 131 to the end close to the first measuring rod 11; the first section 131 is provided with a second scale, the zero scale of the second scale is located at the end of the first section 131 close to the second section 132, and the value of the second scale gradually increases from the end close to the second section 132 to the end close to the second measuring rod 12; the measuring rod 161 is provided with a third scale, the zero scale of the third scale corresponds to the position of the header 163, and the third scale gradually increases in the direction close to the first measuring rod 11. In this way, the first scale value of the second measuring rod 12, the second scale value of the first section 131 and the third scale value of the measuring rod 161 can be directly read, and then the distance between the two opposite surfaces can be determined by the total length of the first measuring rod 11 (which is a known quantity), the first scale value, the second scale value and the sum of the third scale values. This setting makes it convenient and quick to obtain the distance.

[0068] In some embodiments, see Figures 1 to 4As shown, the first measuring rod 11 is hollow, and one end of the second measuring rod 12 extends from the end of the first measuring rod 11 close to the third measuring rod 13 into the hollow of the first measuring rod 11 and can slide relative to the first measuring rod 11; the first connecting structure 14 includes: a first connecting member 141 and a first fastener 142; the first connecting member 141 is provided with a first sleeve hole to be sleeved on the end of the first measuring rod 11 close to the third measuring rod 13 and fixed relative to the first measuring rod 11, and a circle of inner surface of the first sleeve hole is opposite to the peripheral side surface of the second measuring rod 12; the first fastener 142 is provided with a second sleeve hole to be slidably sleeved on the second measuring rod 12 and can be sleeved at a position where the first connecting member 141 is away from a circle surface of the second measuring rod 12 when subjected to a first force, and the first fastener 142 presses the first connecting member 141 toward the direction of the second measuring rod 12.

[0069] That is to say, the first connecting member 141 sleeved on the first measuring rod 11 is fixed relative to the first measuring rod 11, and the first fastener 142 sleeved on the second measuring rod 12 can slide relative to the second measuring rod 12, and after the second measuring rod 12 slides into place relative to the first measuring rod 11, the first fastener 142 is subjected to a first force in the direction close to the first connecting member 141, and the first fastener 142 is at least partially sleeved on the outside of the first connecting member 141 and squeezes the first connecting member 141. The force of squeezing the first connecting member 141 causes the first connecting member 141 to squeeze a circle surface of the second measuring rod 12, so that the first connecting member 141 is fixed relative to the second measuring rod 12, thereby achieving the purpose of maintaining the second measuring rod 12 in the position after sliding relative to the first measuring rod 11.

[0070] In some embodiments, the outer diameter of the circle surface of the first connecting member 141 away from the second measuring rod 12 tends to increase from the end close to the second section 132 to the end away from the second section 132. When the first fastener 142 is subjected to a first force (pushing force) in the direction close to the first connecting member 141, it can be interference fit with the circle surface of the first connecting member 141 away from the second measuring rod 12 and squeeze the first connecting member 141. The force of squeezing the first connecting member 141 causes the first connecting member 141 to squeeze the circle surface of the second measuring rod 12, so that the first connecting member 141 is fixed relative to the second measuring rod 12, thereby achieving the purpose of maintaining the second measuring rod 12 in the position after sliding relative to the first measuring rod 11.

[0071] In some embodiments, see Figures 1 to 4As shown, the outer diameter of the surface of the first connecting member 141 facing away from the second measuring rod 12 increases from the end closest to the second section 132 to the end further away from the second section 132. A first thread is provided on the surface of the first connecting member 141 facing away from the second measuring rod 12. The first fastener 142 is provided with a second thread that matches the first thread. When the first fastener 142 is subjected to a first force (rotational force) in a direction approaching the first connecting member 141, the second thread connects with the first thread, so that the first fastener 142 connects to the surface of the first connecting member 141 facing away from the second measuring rod 12 and compresses the first connecting member 141. The force exerted on the first connecting member 141 causes the first connecting member 141 to compress the surface of the second measuring rod 12, thereby securing the first connecting member 141 relative to the second measuring rod 12. This ensures that the second measuring rod 12 remains in its post-sliding position relative to the first measuring rod 11.

[0072] In some embodiments, see Figures 1 to 4 As shown, the second measuring rod 12 is hollow, and the end of the first section 131 away from the second section 132 extends into the hollow of the second measuring rod 12 and can slide relative to the second measuring rod 12; the second connecting structure 15 includes: a second connecting member 151 and a second fastener 152; the second connecting member 151 is provided with a third sleeve hole to be sleeved on the end of the second measuring rod 12 away from the first measuring rod 11 and fixed relative to the second measuring rod 12, and an inner surface of the third sleeve hole is opposite to the circumferential side surface of the first section 131; the second fastener 152 is provided with a fourth sleeve hole to be slidably sleeved on the first section 131 and can be sleeved at a position of the second connecting member 151 away from the surface of the first section 131 when subjected to a second force, and the second fastener 152 squeezes the second connecting member 151 toward the direction of the first section 131.

[0073] That is to say, the second connecting member 151 sleeved on the second measuring rod 12 is fixed relative to the second measuring rod 12, and the second fastener 152 sleeved on the first section 131 can slide relative to the first section 131. After the first section 131 slides into place relative to the second measuring rod 12, the second fastener 152 is subjected to a second force in the direction close to the second connecting member 151. The second fastener 152 is at least partially sleeved on the outside of the second connecting member 151 and squeezes the second connecting member 151. The force squeezing the second connecting member 151 causes the second connecting member 151 to squeeze a circle of the surface of the first section 131, so that the second connecting member 151 is fixed relative to the first section 131, thereby achieving the purpose of maintaining the first section 131 in the position after sliding relative to the second measuring rod 12.

[0074] In some embodiments, the outer diameter of the circle surface of the second connecting member 151 away from the first section 131 tends to increase from the end close to the second section 132 to the end away from the second section 132. When the second fastener 152 is subjected to a second force (pushing force) in the direction close to the second connecting member 151, it can be interference fit with the circle surface of the second connecting member 151 away from the first section 131 and squeeze the second connecting member 151. The force squeezing the second connecting member 151 causes the second connecting member 151 to squeeze the circle surface of the first section 131, so that the second connecting member 151 is fixed relative to the first section 131, thereby achieving the purpose of maintaining the first section 131 in the position after sliding relative to the second measuring rod 12.

[0075] In some embodiments, the outer diameter of the second connecting member 151's surface facing away from the first section 131 increases from the end proximal to the second section 132 toward the end distal to the second section 132. A third thread is provided on the second connecting member 151's surface facing away from the first section 131. The second fastener 152 is provided with a fourth thread adapted to the third thread. When the second fastener 152 is subjected to a second force (rotational force) directed toward the second connecting member 151, the fourth thread engages with the third thread, causing the second fastener 152 to connect with the surface of the second connecting member 151 facing away from the first section 131 and compress the second connecting member 151. The force exerted on the second connecting member 151 causes the second connecting member 151 to compress the surface of the first section 131, thereby securing the second connecting member 151 relative to the first section 131. This maintains the position of the first section 131 after sliding relative to the second measuring rod 12.

[0076] In some embodiments, the number of the second measuring rod 12 is one, and the second measuring rod 12 is retractable in its length direction; or, the number of the second measuring rod 12 is greater than three, and they are detachably connected in sequence.

[0077] When there is only one second measuring rod 12 and the second measuring rod 12 is extendable in its length direction, the length of the measuring tool 10 in the measuring direction can be adjusted by extending or retracting the second measuring rod 12, thereby measuring distances of different lengths.

[0078] When the number of the second measuring rods 12 is greater than three and they are detachably connected in sequence, part or all of the second connecting rods 12 between the first and last second measuring rods 12 along the measuring direction can be removed, and the remaining second measuring rods 12 can be reconnected to adjust the length of the measuring tool 10 in the measuring direction, thereby measuring distances of different lengths.

[0079] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0080] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A measuring tool, characterized in that: include: First measuring rod; at least one second measuring rod, the length direction of which is parallel to the length direction of the first measuring rod; The third measuring rod comprises a first section and a second section perpendicular to each other, wherein the length direction of the first section is parallel to the length direction of the second measuring rod, and the second section is perpendicularly connected to the measuring rod of the dial indicator; The connecting structure includes: a first connecting structure and a second connecting structure, one end of the second measuring rod is connected to the first measuring rod through the first connecting structure, and the second measuring rod can slide relative to the first connecting structure in its own length direction and maintain its position after sliding; the other end of the second measuring rod is connected to an end of the first section away from the second section through the second connecting structure, and the first section can slide relative to the second connecting structure in its own length direction and maintain its position after sliding.

2. The measuring tool according to claim 1, wherein: A limit block is provided at one end of the first measuring rod away from the second section, the limit block is opposite to the second section, and the second section is movably connected to the measuring rod, so that the dial indicator head at the end of the measuring rod away from the dial is in the first orientation or the second orientation; In the first orientation, the meter header is located on a side of the second section away from the first section; In the second orientation, the meter header is located on a side of the second section close to the first section.

3. The measuring tool according to claim 2, characterized in that The second section is provided with a first through hole; The measuring rod is detachably arranged in the first through hole and is fixed relative to the first through hole after being located in the first through hole.

4. The measuring tool according to claim 2, wherein: A first distance block is provided at one end of the first measuring rod close to the second section; A second distance block is provided at one end of the second measuring rod away from the first connecting structure; The limiting block, the first distance block and the second distance block are all located on one side of the length direction of the measuring tool.

5. The measuring tool according to claim 4, characterized in that The second measuring rod is provided with a first scale, the zero mark of the first scale is located at the end of the second measuring rod close to the first section, and the values ​​of the first scale gradually increase from the end close to the first section to the end close to the first measuring rod; The first section is provided with a second scale, the zero mark of the second scale is located at an end of the first section close to the second section, and the values ​​of the second scale gradually increase from the end close to the second section to the end close to the second measuring rod; The measuring rod is provided with a third scale, the zero mark of the third scale corresponds to the position of the meter head, and the third scale gradually increases in a direction approaching the first measuring rod.

6. The measuring tool according to claim 1, wherein: The first measuring rod is hollow, and one end of the second measuring rod extends from an end of the first measuring rod close to the third measuring rod into the hollow of the first measuring rod and is capable of sliding relative to the first measuring rod; The first connection structure includes: a first connection member and a first fastener; The first connecting member is provided with a first sleeve hole for sleeve-mounting on an end of the first measuring rod close to the third measuring rod and fixed relative to the first measuring rod, and an inner surface of the first sleeve hole is opposite to a peripheral side surface of the second measuring rod; The first fastener is provided with a second sleeve hole for slidingly sleeved on the second measuring rod and can be sleeved on a circle surface of the first connecting member away from the second measuring rod when subjected to a first force, and the first fastener presses the first connecting member toward the second measuring rod.

7. The measuring tool according to claim 6, characterized in that The outer diameter of a circle surface of the first connecting member away from the second measuring rod increases from an end close to the second section to an end away from the second section, and a first thread is provided on the circle surface of the first connecting member away from the second measuring rod; The first fastener is provided with a second thread adapted to the first thread.

8. The measuring tool according to claim 1, wherein: The second measuring rod is hollow, and one end of the first section away from the second section extends into the hollow of the second measuring rod and is capable of sliding relative to the second measuring rod; The second connection structure includes: a second connection member and a second fastener; The second connecting member is provided with a third sleeve hole for sleeve-mounting on an end of the second measuring rod away from the first measuring rod and fixed relative to the second measuring rod, and an inner surface of the third sleeve hole is opposite to the peripheral side surface of the first section; The second fastener is provided with a fourth sleeve hole for slidingly sleeved on the first section and can be sleeved on a circle surface of the second connecting member away from the first section when subjected to a second force, and the second fastener presses the second connecting member toward the first section.

9. The measuring tool according to claim 8, characterized in that The outer diameter of a circle surface of the second connecting member away from the first section increases from an end close to the second section to an end away from the second section, and a third thread is provided on the circle surface of the second connecting member away from the first section; The second fastener is provided with a fourth thread adapted to the third thread.

10. The measuring tool according to claim 1, wherein: The number of the second measuring rod is one, and the second measuring rod is retractable in the length direction thereof; or, The number of the second measuring rods is greater than three, and they are detachably connected in sequence.

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