Adjustable measuring scale for surveying and mapping engineering

Abstract

The utility model provides an adjustable surveying and mapping engineering measuring scale which comprises a cross rod, the surface of the cross rod is provided with a plurality of rotating areas, the inside of the cross rod is fixedly connected with a spring, the end part of the spring is fixedly connected with a bulge, the bulge protrudes out of the surface of the cross rod, the rotating areas are movably connected with rotating rings, and the rotating rings are movably connected with the rotating rings. A plurality of grooves are formed in the inner side of the rotating ring, the protrusions are clamped in the grooves, and a connector is fixedly connected to the bottom of the rotating ring. The device has the advantages that the device integrates aperture rulers of various specifications, when the rotating ring rotates, the protrusion is pressed down, and the groove is aligned with the protrusion, the protrusion is ejected out and clamped into the groove, the angle can be locked when the rotating ring rotates by 180 degrees, and when a single aperture ruler is used, the other two aperture rulers and the aperture rulers form an included angle of 180 degrees, so that the angle can be locked. The device integrates aperture rulers of various specifications, can be quickly switched for use, is adjustable, is convenient to use, and can be used for measuring the apertures of concrete holes and steel pipes of various diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering surveying and mapping, in particular to an adjustable measuring ruler for surveying and mapping engineering. Background Art

[0002] During engineering surveying, it is often necessary to detect the inner diameters of holes drilled in concrete, steel pipes and other objects.

[0003] This requires the use of a bore gauge tool. A bore gauge, also known as a bore ruler or bore plug gauge, is a special measuring tool used to measure the inner diameter of a hole and whether its tolerance is qualified. The structure of a bore gauge is generally simple, mainly consisting of a plug gauge body, a through end, and a stop end.

[0004] In the prior art, to measure the diameter of a hole in building concrete, one only needs to directly insert the hole gauge into the hole and observe the hole mouth reading.

[0005] However, the diameter specifications of hole structures such as concrete holes and steel pipes are different. Therefore, in actual surveying, it is necessary to carry multiple aperture gauges, which is inconvenient to carry. Therefore, a new adjustable measuring ruler for surveying and mapping engineering is proposed, which integrates aperture gauges of different specifications into one tool, and can be rotated for use and folded and stored, with a small size and more convenient to carry. Utility Model Content

[0006] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0007] Therefore, one purpose of the utility model is to provide an adjustable measuring ruler for surveying and mapping engineering to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0008] In order to achieve the above-mentioned object, an embodiment of the utility model provides an adjustable measuring ruler for surveying and mapping engineering, comprising a crossbar, wherein a plurality of rotation areas are arranged on the surface of the crossbar;

[0009] A spring is fixedly connected inside the crossbar, and a protrusion is fixedly connected to the end of the spring, and the protrusion protrudes from the surface of the crossbar;

[0010] The rotating area is movably connected with a rotating ring, the inner side of the rotating ring is provided with a plurality of grooves, and the protrusions are clamped in the grooves;

[0011] A joint is fixedly connected to the bottom of the rotating ring, and an aperture ruler is detachably connected to the bottom of the joint. There are several aperture rulers with different specifications, and scales are arranged on the aperture rulers.

[0012] Preferably, in any of the above schemes, the cross bar is perpendicular to the aperture ruler, and the interval angle of the protrusions is ninety degrees.

[0013] Adopting the above technical solution: This device is specially used in the field of surveying and mapping engineering, specifically an adjustable measuring ruler, which is specially used to measure the aperture of structures such as concrete holes and steel pipes.

[0014] Preferably, any of the above schemes has a spherical surface and the rotating ring can be limited every 180 degrees of rotation.

[0015] Preferably, any of the above schemes has two grooves spaced one hundred and eighty degrees apart on the inner side of the rotating ring, and the joint is threadedly connected to the aperture ruler or connected by screws.

[0016] Adopting the above technical solution: the device itself is integrated with three aperture rulers of different specifications, and only one is used at a time. When one is used, the other two aperture rulers form an angle of 180 degrees with it.

[0017] Preferably, in any of the above schemes, the aperture ruler is made of stainless steel, and the diameter of the aperture ruler decreases from top to bottom.

[0018] Adopting the above technical solution: the core structure of the device is: crossbar, rotating area, spring, protrusion, swivel, groove, joint, aperture ruler. The core advantages of the device are: the device integrates aperture rulers of various specifications, which can be quickly switched and used, adjustable, easy to use, and can measure the aperture of concrete holes and steel pipes of various diameters. When the swivel rotates, the protrusion is pressed down, and when the groove is aligned with the protrusion, the protrusion is pushed out and stuck in the groove. The angle can be locked every 180 degrees of rotation of the swivel. When a single aperture ruler is used, the other two aperture rulers form an angle of 180 degrees with it.

[0019] When the whole device is not in use, the three aperture rulers are folded together, which is small in size and easy to carry.

[0020] When the device is used to measure the aperture, select an aperture ruler of appropriate size and move the other two aperture rulers away. The other two aperture rulers are at an angle of 180 degrees to the aperture ruler currently in use, and try to insert them into the hole to be measured. If they can be successfully inserted into the hole, the aperture of the hole is read according to the corresponding scale at the hole mouth.

[0021] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0022] The adjustable surveying and mapping engineering measuring ruler is arranged by the coordination of a crossbar, a rotating area, a spring, a protrusion, a rotating ring, a groove, a joint, and an aperture ruler. The device integrates aperture rulers of various specifications. When the rotating ring rotates, the protrusion is pressed down. When the groove is aligned with the protrusion, the protrusion is pushed out and snapped into the groove. The angle can be locked every 180 degrees of rotation of the rotating ring. When a single aperture ruler is used, the other two aperture rulers form an angle of 180 degrees with it. The device integrates aperture rulers of various specifications, can be quickly switched for use, is adjustable, and is easy to use. It can measure the apertures of concrete holes and steel pipes of various diameters.

[0023] When the whole device is not in use, the three aperture rulers are folded together, which is small in size and easy to carry.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the crossbar of the utility model;

[0028] Figure 3 It is a structural schematic diagram of a single aperture ruler of the utility model;

[0029] Figure 4 It is a schematic diagram of the structure when the utility model is used;

[0030] Figure 5 It is a schematic cross-sectional structure diagram of the spring of the utility model.

[0031] In the figure: 1-cross bar, 2-rotation area, 3-spring, 4-protrusion, 5-swivel, 6-groove, 7-joint, 8-aperture ruler, 9-scale. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figure 1-5 As shown, the adjustable measuring ruler for surveying and mapping engineering includes a crossbar 1, and a plurality of rotation areas 2 are arranged on the surface of the crossbar 1;

[0035] A spring 3 is fixedly connected inside the crossbar 1, and a protrusion 4 is fixedly connected to the end of the spring 3, and the protrusion 4 protrudes from the surface of the crossbar 1;

[0036] A rotating ring 5 is movably connected to the rotating area 2, and a plurality of grooves 6 are provided on the inner side of the rotating ring 5, and the protrusions 4 are clamped in the grooves 6;

[0037] A joint 7 is fixedly connected to the bottom of the swivel 5 , and an aperture ruler 8 is detachably connected to the bottom of the joint 7 . There are several aperture rulers 8 with different specifications, and a scale 9 is set on the aperture ruler 8 .

[0038] Embodiment 1: The crossbar 1 is perpendicular to the aperture ruler 8, and the interval angle of the protrusion 4 is ninety degrees. This device is specially used in the field of surveying and mapping engineering, specifically an adjustable measuring ruler, which is specially used to measure the aperture of structures such as concrete holes and steel pipes. The surface of the protrusion 4 is a spherical surface, and the rotating ring 5 can be limited every 180 degrees of rotation. The inner side of the rotating ring 5 is provided with two grooves spaced 180 degrees apart, and the joint 7 is threadedly connected to the aperture ruler 8 or connected by screws.

[0039] Embodiment 2: The device itself is integrated with three aperture rulers 8 of different specifications, and only one is used at a time. When a single one is used, the other two aperture rulers 8 are at an angle of 180 degrees to it. The aperture ruler 8 is made of stainless steel, and the diameter of the aperture ruler 8 decreases from top to bottom. When the device measures the aperture, when in use, select an aperture ruler 8 of appropriate size, and turn away the other two aperture rulers 8. The other two aperture rulers 8 are at an angle of 180 degrees to the aperture ruler 8 currently in use, and try to insert it into the hole to be measured. If it can be successfully inserted into the hole, the aperture of the hole is read according to the corresponding scale 9 at the hole mouth.

[0040] The working principle of the utility model is as follows:

[0041] When in use, select an aperture ruler 8 of appropriate size, and turn away the other two aperture rulers 8, and try to insert the other two aperture rulers 8 into the hole to be tested at an angle of 180 degrees with the currently used aperture ruler 8. If it can be successfully inserted into the hole, the aperture of the hole is read according to the corresponding scale 9 at the hole mouth.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] The adjustable surveying and mapping engineering measuring ruler is arranged by the coordination of the crossbar 1, the rotating area 2, the spring 3, the protrusion 4, the rotating ring 5, the groove 6, the joint 7, and the aperture ruler 8. The device integrates various specifications of the aperture rulers 8. When the rotating ring 5 rotates, the protrusion 4 is pressed down. When the groove 6 is aligned with the protrusion 4, the protrusion 4 is pushed out and inserted into the groove 6. The rotating ring 5 can lock the angle every 180 degrees. When a single aperture ruler 8 is used, the other two aperture rulers 8 form an angle of 180 degrees with it. The device integrates various specifications of the aperture rulers 8, which can be quickly switched for use, is adjustable, and is easy to use. The apertures of concrete holes and steel pipes of various diameters can be measured.

[0044] When the whole device is not in use, the three aperture rulers can be folded together into 8 parts, so the volume is small and convenient to carry.

Claims

1. An adjustable measuring ruler for surveying and mapping engineering, characterized in that: It comprises a crossbar (1), wherein a surface of the crossbar (1) is provided with a plurality of rotation areas (2); A spring (3) is fixedly connected inside the cross bar (1), a protrusion (4) is fixedly connected to the end of the spring (3), and the protrusion (4) protrudes from the surface of the cross bar (1); The rotating area (2) is movably connected with a rotating ring (5), the inner side of the rotating ring (5) is provided with a plurality of grooves (6), and the protrusions (4) are clamped in the grooves (6); The bottom of the rotating ring (5) is fixedly connected to a joint (7), and the bottom of the joint (7) is detachably connected to an aperture ruler (8). There are a plurality of aperture rulers (8) with different specifications, and a scale (9) is provided on the aperture ruler (8).

2. The adjustable measuring ruler for surveying and mapping engineering as claimed in claim 1, characterized in that: The cross bar (1) is perpendicular to the aperture ruler (8), and the interval angle of the protrusions (4) is ninety degrees.

3. The adjustable measuring ruler for surveying and mapping engineering as claimed in claim 2, characterized in that: The surface of the protrusion (4) is a spherical surface, and the rotating ring (5) can be limited every 180 degrees of rotation.

4. The adjustable measuring ruler for surveying and mapping engineering as claimed in claim 3, characterized in that: The inner side of the rotating ring (5) is provided with two grooves spaced 180 degrees apart, and the joint (7) is threadedly connected to the aperture ruler (8) or connected by screws.

5. The adjustable measuring ruler for surveying and mapping engineering as claimed in claim 4, characterized in that: The aperture ruler (8) is made of stainless steel, and the diameter of the aperture ruler (8) decreases from top to bottom.

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