Distance measuring instrument for engineering cost

Abstract

The utility model discloses a range finder for engineering cost, which comprises a shell, a suspension and a plumb, and two symmetrical rotating holes on two sides of the shell are rotatably mounted at the top of the suspension in a suspended manner; according to the diastimeter for the construction cost, the shell is rotationally installed at the top end of the suspension, the suspension is held by hand, then the plumb is hung on the first cylindrical hanging rod in the first groove through the hook, the side face of the lower end of the shell is weighted, the gravity of the plumb drives the shell to rotate with the rotating hole as the circle center, and the first cylindrical hanging rod is driven to rotate vertically downwards with the rotating hole; and similarly, when the plumb is hung on the cylindrical hanging rod II in the groove II through the hook, the laser emitted by the handheld laser range finder can be in a vertical state, so that the laser emitted by the handheld laser range finder can be in a horizontal state when the plumb is hung on the cylindrical hanging rod II in the groove II through the hook, and the purpose that the plumb is hung on the cylindrical hanging rod II in a handheld suspension state is achieved. The shell and the whole handheld laser range finder are used for horizontal and vertical measurement without being influenced by human factors, and the measured data are more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of distance measuring instruments, in particular to a distance measuring instrument for engineering cost. Background Art

[0002] In engineering cost estimation, distance meters can be used to measure the size and distance of construction sites, as well as data such as the height and length of buildings. Currently, when using a handheld distance meter to measure horizontal and vertical distances, it is usually necessary to use a wall or the ground to assist in placing the handheld distance meter horizontally or vertically.

[0003] However, in open construction sites without auxiliary walls and horizontal surfaces, direct handheld measurement will cause the rangefinder to be affected by human factors and tilt at a certain angle, making the rangefinder measurement data inaccurate. This paper aims to propose a rangefinder that can maintain horizontal and vertical measurements in a handheld state. Utility Model Content

[0004] The utility model aims to solve the problem that the handheld distance meter in the prior art is directly handheld for measurement, the distance meter will be affected by human factors and will tilt at a certain angle, so that the measurement data of the distance meter is not accurate enough, and a distance meter for engineering cost is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A distance meter for engineering cost, comprising a housing, and further comprising:

[0007] A suspension, wherein two symmetrical rotating holes on both sides of the shell are suspended and rotatably mounted on the top of the suspension;

[0008] The housing is vertically mounted on the back side or bottom side of the housing through a hook.

[0009] Preferably, the cross-section of the rotary hole is circular, the shell weight on both sides of the vertical symmetry axis a of the rotary hole cross-section is the same, and the shell weight on both sides of the transverse center axis b of the rotary hole cross-section is the same, and the above-mentioned vertical symmetry axis a and transverse center axis b of the cross-section are perpendicular to each other.

[0010] Preferably, a groove 1 is provided on the back end face of the shell, a cylindrical hanging rod 1 is fixedly installed in the groove 1, the cylindrical hanging rod 1 and the rotating hole are parallel to each other, and the line connecting the centers of the cylindrical hanging rod 1 and the rotating hole and the transverse center axis b of the above-mentioned cross-section are in the same vertical plane.

[0011] Preferably, a second groove is provided on the bottom end face of the shell, and a second cylindrical hanging rod is fixedly installed in the second groove. The second cylindrical hanging rod and the rotating hole are parallel to each other, and the line connecting the centers of the second cylindrical hanging rod and the rotating hole and the vertical symmetry axis a of the above-mentioned cross-section are in the same vertical plane.

[0012] Preferably, the suspension is in an inclined U-shape as a whole, and a tripod is installed at the lower end of the suspension.

[0013] Preferably, the hook is fixedly mounted on the top end of the plumb line, knobs are symmetrically threadedly mounted on both sides of the top of the suspension, and the ends of the two knobs are respectively rotatably mounted in two rotating holes with low damping.

[0014] Compared with the prior art, the utility model provides a distance meter for engineering cost measurement, which has the following beneficial effects:

[0015] The engineering cost rangefinder has a shell that is first rotated and installed on the top of the suspension, and the suspension is held by hand, and then a plumb line is hung and installed on a cylindrical hanging rod one in a groove one through a hook, and the side of the lower end of the shell is weighted. The gravity of the plumb line drives the shell to rotate with the rotating hole as the center of the circle, and when the weight of the shell on both sides of the transverse central axis b of the above-mentioned cross-section is the same, the cylindrical hanging rod one is driven to rotate vertically downward through the rotating hole, so that the laser emitted by the handheld laser rangefinder is in a horizontal state. Similarly, when the plumb line is hung and installed on a cylindrical hanging rod two in a groove two through a hook, the plumb line drives the cylindrical hanging rod two to rotate vertically downward through the rotating hole, and the laser emitted by the handheld laser rangefinder is in a vertical state, thereby realizing horizontal and vertical measurement of the shell and the entire handheld laser rangefinder in the handheld suspension state, which is not affected by human factors and has more accurate measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a distance meter for engineering cost proposed by the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a distance meter for engineering cost proposed by the utility model Figure 2 ;

[0018] Figure 3 The schematic diagram of the housing and plumb hanging structure of a distance meter for engineering cost proposed by the utility model Figure 1 ;

[0019] Figure 4 The schematic diagram of the housing and plumb hanging structure of a distance meter for engineering cost proposed by the utility model Figure 2 .

[0020] In the figure: 1. tripod; 2. suspension; 3. knob; 4. shell; 5. groove one; 6. cylindrical hanging rod one; 7. plumb line; 8. groove two; 9. cylindrical hanging rod two; 10. rotating hole; 11. hook. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Reference Figure 1-4 A distance meter for engineering cost, comprising a tripod 1, a shell 4 and a plumb line 7. The tripod 1 can be directly a tripod in the prior art. A suspension 2 is installed on the top of the tripod 1. The suspension 2 and the tripod 1 are threadedly connected to facilitate installation and disassembly. The suspension 2 is in a U-shape in an inclined state as a whole. The U-shape is used to suspend and install the rangefinder shell 4. The suspension 2 is set in an inclined state to avoid the lower end of the suspension 2 from being staggered from the lower end of the shell 4, and does not affect the hanging plumb line 7;

[0024] The shell 4 is the outer shell of the handheld laser rangefinder in the prior art. The laser rangefinder of the handheld laser rangefinder is arranged at the top of the shell 4. The emitted laser and the vertical symmetry axis a of the cross section are parallel to each other. Knobs 3 are symmetrically threadedly installed on both sides of the top of the suspension 2. Two symmetrical rotating holes 10 are arranged on both sides of the shell 4. The central axes of the two rotating holes 10 are in the same straight line. The upper and lower bottom edges of the rotating holes 10 and the shell 4 are parallel to each other. The ends of the two knobs 3 are respectively installed in the two rotating holes 10 with low damping rotation. The two knobs 3 are threadedly connected to the suspension 2, which facilitates the installation and disassembly between the suspension 2 and the shell 4.

[0025] It should be supplemented that the cross-section of the rotary hole 10 is circular, the weight of the shell 4 on both sides of the vertical symmetry axis a of the rotary hole 10 cross-section is the same, and the weight of the shell 4 on both sides of the transverse center axis b of the rotary hole 10 cross-section is the same, the vertical symmetry axis a of the cross-section and the left and right sides of the shell 4 are parallel to each other, the transverse center axis b of the cross-section and the upper and lower end sides of the shell 4 are parallel to each other, and the above-mentioned vertical symmetry axis a of the cross-section and the transverse center axis b of the cross-section are perpendicular to each other.

[0026] In this embodiment, a groove 5 is provided on the back end surface of the shell 4, and a cylindrical hanging rod 6 is fixedly installed in the groove 5. The cylindrical hanging rod 6 and the rotating hole 10 are parallel to each other and do not overlap, and the line connecting the centers of the cylindrical hanging rod 6 and the rotating hole 10 and the horizontal center axis b of the above-mentioned cross-section are in the same vertical plane.

[0027] In this embodiment, a groove 28 is provided on the bottom end surface of the shell 4, and a cylindrical hanging rod 29 is fixedly installed in the groove 28. The cylindrical hanging rod 29 and the rotating hole 10 are parallel to each other and do not overlap, and the line connecting the centers of the cylindrical hanging rod 29 and the rotating hole 10 and the vertical symmetry axis a of the above-mentioned cross section are in the same vertical plane.

[0028] In this embodiment, the hook 11 is fixedly installed on the top of the plumb line 7, and the hook 11 is suspended on the cylindrical hanging rod 1 6 on the back end face of the shell 4 or on the cylindrical hanging rod 2 9 on the bottom end face. The plumb line 7 is made of high-density material and mainly utilizes the gravity of the plumb line 7 to achieve the vertical or horizontal placement of the shell 4 for horizontal or vertical distance measurement.

[0029] In the present invention, when holding the housing 4 for horizontal or vertical distance measurement, firstly, the two rotating holes 10 on both sides of the housing 4 are installed on the top of the suspension 2 with low damping rotation through the two knobs 3, and the suspension 2 is held, so that the rotating holes 10 on both sides of the housing 4 can rotate on the top of the suspension 2, and then the plumb line 7 is hung and installed on the cylindrical hanging rod 6 in the groove 5 through the hook 11, and the side surface of the lower end of the housing 4 is weighted, and the gravity of the plumb line 7 drives the housing 4 to rotate with the rotating hole 10 as the center of the circle, and the reference Figure 4 , the plumb line 7 is suspended in the air, in a naturally drooping state, and when the weight of the shell 4 on both sides of the transverse central axis b of the above-mentioned cross section is the same, the cylindrical hanging rod 16 is driven to rotate vertically downward through the rotating hole 10, so that the laser emitted by the handheld laser rangefinder is in a horizontal state;

[0030] Similarly, when the plumb bob 7 is hung and installed on the cylindrical hanging rod 2 9 in the groove 2 8 through the hook 11, the plumb bob 7 drives the cylindrical hanging rod 2 9 to rotate vertically downward through the rotating hole 10, and the laser emitted by the handheld laser rangefinder is in a vertical state, thereby realizing horizontal and vertical measurement of the shell 4 and the entire handheld laser rangefinder in the handheld suspension 2 state, which is not affected by human factors and the measurement data is more accurate. In addition, the suspension 2 in the present application can also be threadedly installed on the tripod 1, so that it can stand on the ground for measurement more stably, and standing on the ground is more stable than hand-held.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distance meter for engineering cost, comprising a housing (4), characterized in that: Also includes: A suspension (2), two symmetrical rotating holes (10) on both sides of the shell (4) are suspended and rotatably mounted on the top of the suspension (2), the cross section of the rotating hole (10) is circular, the shell (4) on both sides of the vertical symmetry axis a of the cross section of the rotating hole (10) has the same weight, and the shell (4) on both sides of the transverse center axis b of the cross section of the rotating hole (10) has the same weight, and the vertical symmetry axis a and the transverse center axis b of the cross section are perpendicular to each other; The plumb line (7) is hung and mounted on the back side end surface or the bottom end surface of the shell (4) via a hook (11).

2. A distance meter for construction cost according to claim 1, characterized in that: A groove (5) is provided on the back end surface of the shell (4), and a cylindrical hanging rod (6) is fixedly installed in the groove (5). The cylindrical hanging rod (6) and the rotating hole (10) are parallel to each other, and a line connecting the centers of the cylindrical hanging rod (6) and the rotating hole (10) and the transverse center axis b of the cross section are in the same vertical plane.

3. A distance meter for construction cost according to claim 1, characterized in that: A second groove (8) is provided on the bottom end surface of the shell (4), and a second cylindrical hanging rod (9) is fixedly installed in the second groove (8). The second cylindrical hanging rod (9) and the rotating hole (10) are parallel to each other, and a line connecting the centers of the second cylindrical hanging rod (9) and the rotating hole (10) and the vertical symmetry axis a of the cross section are in the same vertical plane.

4. A distance meter for construction cost according to claim 1, characterized in that: The suspension (2) is in an inclined U-shape as a whole, and a tripod (1) is installed at the lower end of the suspension (2).

5. The distance meter for construction cost according to claim 1, characterized in that: The hook (11) is fixedly mounted on the top of the plumb (7), and knobs (3) are symmetrically threadedly mounted on both sides of the top of the suspension (2), and the ends of the two knobs (3) are respectively rotatably mounted in the two rotating holes (10) with low damping.

Images