A bidirectional laser range finder

Abstract

The utility model discloses a kind of two-way laser range finder, it is related to laser ranging field, the two-way laser range finder includes support assembly and laser assembly, support assembly includes instrument shell and the convex end being equipped with in the top of both ends of instrument shell axial, convex end includes the first convex end being located in one end of instrument shell and fixedly arranged and the second convex end being located in the other end of instrument shell and can be longitudinally displaced;Laser assembly includes transmitting end and the receiving end being axially installed with transmitting end, the end face of first convex end along the both end surface of instrument shell axial and the end face of second convex end towards first convex end are equipped with a laser assembly, and the laser assembly on second convex end can be synchronized with the power off of second convex end's lower movement work.This application can realize the bidirectional measurement of inward and outward, can be applicable to more measurement scene and need not replace laser measuring head.

Description

Technical Field

[0001] This utility model relates to the field of laser ranging, specifically to a bidirectional laser rangefinder. Background Technology

[0002] In the field of industrial measurement, laser rangefinders are widely used for measuring the inner diameter, outer diameter, and wall thickness of pipes due to their non-contact and high-precision characteristics. Traditional laser rangefinders typically use a unidirectional laser beam emission and reception method. Traditional equipment often only supports unidirectional measurement of the outer or inner diameter, resulting in limited functionality. When measuring closed or annular structures such as pipes, or when measuring pipe diameter and wall thickness, different instruments or adjustments to the measuring head position are required to complete the wall thickness calculation, which increases the complexity of the measurement work and greatly reduces measurement efficiency. Utility Model Content

[0003] This application provides a two-way laser rangefinder, which can solve the technical problems of the limited functionality of traditional equipment in the prior art, the need to change different instruments or adjust the measuring head when measuring closed or ring structures such as pipes, and the increased complexity of measurement work when measuring pipe diameter and pipe wall.

[0004] This application provides a bidirectional laser rangefinder, including: A support assembly includes an instrument housing and protruding ends at the top of both axial ends of the instrument housing. The protruding ends include a first protruding end located at one end of the instrument housing and fixedly disposed thereon, and a second protruding end located at the other end of the instrument housing and capable of longitudinal displacement. A laser assembly includes a transmitter and a receiver mounted axially to the transmitter. The first protrusion has a transmitter and a receiver on both end faces along the axial direction of the instrument housing and the end face of the second protrusion facing the first protrusion. The transmitter and receiver on the second protrusion can be powered off synchronously as the second protrusion moves downward.

[0005] In one embodiment, the instrument housing has an internal mounting cavity, which contains a circuit board and a central processing unit.

[0006] In one embodiment, the instrument housing is provided with a first level bubble and a display screen located below the first level bubble, the first level bubble being arranged along the axial direction of the instrument housing.

[0007] In one embodiment, the instrument housing has a guide member longitudinally arranged on one end face facing the second protruding end, and the second protruding end has a sliding member arranged on one end face facing the instrument housing.

[0008] In one embodiment, one end face of the slider is used to cooperate with the guide, and the other end face is fixedly connected to the second protruding end so that the second protruding end can reciprocate along the longitudinal direction of the guide.

[0009] In one embodiment, a second level bubble is provided on the end face of the second protrusion away from the instrument housing, and the second level bubble and the first level bubble are located on the same horizontal line.

[0010] In one embodiment, the instrument housing is further provided with a switch button for controlling the on / off state of the transmitter and receiver located on the second protruding end.

[0011] In one embodiment, one end of the switch button is located inside the instrument housing and electrically connected to the circuit board, and the other end passes through the instrument housing and protrudes from the end face of the instrument housing, and the switch button is located within the stroke of the second protruding end reciprocating.

[0012] In one embodiment, the transmitting end includes a laser transmitter, the receiving end includes a laser receiver located at the bottom of the laser transmitter, and both the laser transmitter and the laser receiver are electrically connected to the central processing unit.

[0013] In one embodiment, the laser emitters in the multiple sets of laser assemblies are located on the same horizontal line, and the laser receivers in the multiple sets of laser assemblies are located on the same horizontal line.

[0014] The beneficial effects of the technical solutions provided in this application include: The movable second protruding end structure, combined with automatic power-off, enables a bidirectional laser component design. A single device can achieve comprehensive measurement of pipe inner diameter, pipe wall thickness, and annular structure dimensions, solving the pain point of frequent replacement of different professional instruments in traditional measurement. At the same time, the internal and external measurement mechanism can be applied to measurement scenarios with large and small spacing, providing greater flexibility and realizing intelligent adaptive measurement across all scales. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of a two-way laser rangefinder provided in this application embodiment; Figure 2 This is a schematic diagram of a switch button structure in a two-way laser rangefinder provided in an embodiment of this application.

[0017] In the diagram: 1. Instrument housing; 2. First protruding end; 3. Second protruding end; 4. Transmitter; 5. Receiver; 6. First level bubble; 7. Display screen; 8. Guide component; 9. Sliding component; 10. Second level bubble; 11. Switch button. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0019] This application provides a bidirectional laser rangefinder, which solves the technical problem that traditional equipment has limited functionality and requires different instruments or adjustments to the measuring head when measuring closed or annular structures such as pipes, as well as when measuring pipe diameter and pipe wall thickness, thus increasing the complexity of the measurement work.

[0020] The bidirectional laser rangefinder of this application includes a support component and a laser component. The support component forms a stable mounting base and ensures that it is in a horizontal state. The laser component is set on it and is configured as multiple laser components. Each group of laser components is set at a different position on the support component and faces a different direction, forming a bidirectional laser detection path. It can realize the functions of inward and outward measurement to be suitable for different measurement environments, such as pipe walls or pipe diameters.

[0021] Specifically, Figure 1 A schematic diagram of a two-way laser rangefinder structure is provided for an embodiment of this application, as shown below. Figure 1 As shown, the support assembly includes an instrument housing 1, which is made of metal and serves as the support frame for the overall structure. It provides a mounting reference for the laser assembly and the protruding end. It is made of high-strength material to ensure mechanical stability. The instrument housing 1 is hollow inside and can be designed with wiring channels for the circuit layout of the laser assembly.

[0022] The top of both ends of the instrument housing 1 are provided with protruding ends, which protrude from the upper surface of the instrument housing 1. The first protruding end 2 is located at one end of the instrument housing 1 and is rigidly connected to the instrument housing 1 with no displacement degree of freedom. The second protruding end 3 is located at the other end of the instrument housing 1 and can move longitudinally back and forth.

[0023] The laser assembly includes a transmitter 4 and a receiver 5 axially mounted to the transmitter 4. Axial mounting of the transmitter 4 and receiver 5 ensures high optical path stability and saves lateral mounting space. In this application, the laser assembly is configured in three groups: a laser assembly is provided on each of the two end faces of the first protruding end 2 along the axial direction of the instrument housing 1, and on the end face of the second protruding end 3 facing the first protruding end 2. The transmitter 4 and receiver 5 within each laser assembly cooperate. Furthermore, the transmitters 4 and receivers 5 in all three laser assemblies are located on the same horizontal line.

[0024] Furthermore, the laser component located on the second protruding end 3 can be powered off synchronously as the second protruding end 3 moves downward. When the second protruding end 3 is in the protruding state, the laser component located on the second protruding end 3 is powered on. When the second protruding end 3 moves downward, the laser component located on the second protruding end 3 is powered off, while the two sets of laser components on the first protruding end 2 are controlled to be switched on and off by normal manual control means.

[0025] The bidirectional laser rangefinder of this application can perform both outward and inward measurements to meet different measurement needs, such as measuring the outer diameter, inner diameter, or wall thickness of a pipe. Taking the measurement of the inner diameter of a pipe as an example, it can be adjusted to outward measurement, i.e., lowering the position of the second protruding end 3, de-energizing the laser components on the second protruding end 3, inserting the first protruding end 2 into the pipe to be measured, energizing the two sets of laser components on the first protruding end 2 and emitting lasers in opposite directions. Then, the inner diameter of the pipe to be measured is the sum of the laser paths of the two sets of laser components and the known inner diameter of the first protruding end 2. The sum of the thicknesses, such as when measuring the outer diameter of a pipe, is adjusted to an inward measurement. For example, the position of the second protruding end 3 is raised to align with the first protruding end 2, and the power supply of the laser component outside the first protruding end 2 is cut off. The pipe to be measured is placed between the first protruding end 2 and the second protruding end 3. Then the outer diameter of the pipe is the known distance between the first protruding end 2 and the second protruding end 3 minus the length of the laser emitted by the first protruding end 2 and the second protruding end 3. Of course, there are many ways to measure the object to be measured in this application. The above are just examples and are not specific.

[0026] Furthermore, an installation cavity is formed inside the instrument housing 1, and a circuit board and a central processing unit are housed within the installation cavity. The instrument housing 1 provides protection to seal the internal electronic components. The circuit board integrates signal processing circuitry, controls the on / off logic of the laser assembly, and provides functions such as power management and communication interfaces. In one possible implementation, it includes modules such as photoelectric signal amplification, comparator, and isolation circuit, and is fixed to the installation cavity by screws or clips. The central processing unit processes the laser signal, executes laser data calculation logic, manages the operating status of the equipment, and is mounted on the circuit board, possibly with an attached heat sink or fan.

[0027] Furthermore, the instrument housing 1 is provided with a first level bubble 6 and a display screen 7 located below the first level bubble 6. The first level bubble 6 is arranged along the axial direction of the instrument housing 1 and is fixed to the axial center line of the upper surface of the instrument housing 1. The cylindrical sealed glass tube is filled with liquid and acts as a mechanical level reference indicator, allowing for quick visual judgment of the equipment's level status and ensuring the levelness of the instrument housing 1 itself. It can be installed in a purely mechanical mode and observed and tested by human eyes, or it can be electrically connected to the central processing unit (CPU) for levelness judgment. The display screen 7 is also electrically connected to the CPU and circuit board, and the measurement results calculated by the CPU are displayed on the display screen 7.

[0028] Furthermore, a guide member 8 is longitudinally provided on one end face of the instrument housing 1 facing the second protruding end 3, and a slider 9 is provided on one end face of the second protruding end 3 facing the instrument housing 1. The slider 9 is fixedly connected to the second protruding end 3 to form an integral part, and cooperates with the guide member 8 to realize the longitudinal reciprocating translational movement of the second protruding end 3. In one possible embodiment, the guide member 8 is configured as a longitudinal slide rail, and the guide member 8 is configured as a slider. The highest and lowest positions of the longitudinal slide rail and the slider have self-locking properties. When the second protruding end 3 slides to the highest and lowest positions, it can automatically fix its position without external power to prevent accidental sliding. Limit position self-locking is a commonly used method, which will not be listed here. The self-locking property at the highest position can also more simply and clearly ensure the equal height state of the second protruding end 3 and the first protruding end 2. The slider 9 can be set as a general mechanical structure, and the sliding action is performed manually. It can also be configured as an automatic slider, and its displacement action and displacement path are controlled by a central processing unit. This application does not impose any specific limitations.

[0029] Furthermore, a second level bubble 10 is provided on the end face of the second protruding end 3 away from the instrument housing 1. The second level bubble 10 and the first level bubble 6 are located on the same horizontal line. The second level bubble 10 and the first level bubble 6 can be used together. By the synchronous offset of the two bubbles, the overall tilt of the equipment can be judged more accurately.

[0030] Furthermore, the instrument housing 1 is also equipped with a switch button 11 for controlling the on / off state of the laser component located on the second protruding end 3. Figure 2 This application provides a schematic diagram of the structure of a switch button 11 in a bidirectional laser rangefinder. Figure 2As shown, one end of the switch button 11 is located inside the instrument housing 1 and electrically connected to the circuit board, while the other end passes through the instrument housing 1 and protrudes from the end face of the instrument housing 1. The switch button 11 is located within the reciprocating stroke of the second protruding end 3. That is to say, the protruding point of the switch button 11 is at the guide member 8. The switch button 11 has an automatic reset property. Under normal circumstances, the switch button 11 protrudes outside the instrument housing 1. The downward movement of the second protruding end 3 will squeeze the switch button 11 to retract, triggering the power-off command of the laser component on the second protruding end 3. When the second protruding end 3 moves upward, the switch button 11 automatically pops out, and the laser component on the second protruding end 3 is powered on. Pressing the switch button 11 to realize the circuit on and off is a common existing method, which will not be described in detail here.

[0031] The on / off state of the two sets of laser components located on the first protruding end 2 can be achieved using common methods. Switches can be set at other locations on the instrument housing 1, and the circuit can be turned on and off manually. Remote control switches or other methods can also be used. This application does not impose any specific restrictions.

[0032] Furthermore, the transmitting end 4 includes a laser transmitter, and the receiving end 5 includes a laser receiver located at the bottom of the laser transmitter. Both the laser transmitter and the laser receiver are electrically connected to the central processing unit. The data from the laser transmitter and the laser receiver are transmitted to the central processing unit, which performs data calculations and displays the calculation results on the display screen 7.

[0033] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0034] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A bidirectional laser rangefinder, characterized in that, include: The support assembly includes an instrument housing (1) and protruding ends at the top of both ends of the instrument housing (1) along the axial direction. The protruding ends include a first protruding end (2) located at one end of the instrument housing (1) and fixedly disposed therein, and a second protruding end (3) located at the other end of the instrument housing (1) and capable of longitudinal displacement. The laser assembly includes a transmitter (4) and a receiver (5) axially mounted to the transmitter (4). The first protrusion (2) is provided with a transmitter (4) and a receiver (5) on both end faces of the first protrusion (2) along the axial direction of the instrument housing (1) and the end face of the second protrusion (3) facing the first protrusion (2). The transmitter (4) and receiver (5) located on the second protrusion (3) can be powered off synchronously as the second protrusion (3) moves downward.

2. The bidirectional laser rangefinder as described in claim 1, characterized in that: The instrument housing (1) has an internal mounting cavity, which contains a circuit board and a central processing unit.

3. A bidirectional laser rangefinder as described in claim 1, characterized in that: The instrument housing (1) is provided with a first level bubble (6) and a display screen (7) located below the first level bubble (6), and the first level bubble (6) is arranged along the axial direction of the instrument housing (1).

4. A bidirectional laser rangefinder as described in claim 3, characterized in that: The instrument housing (1) has a guide (8) longitudinally arranged on one end face facing the second protruding end (3), and a sliding member (9) is arranged on one end face facing the instrument housing (1).

5. A bidirectional laser rangefinder as described in claim 4, characterized in that: One end face of the sliding member (9) is used to cooperate with the guide member (8), and the other end face is fixedly connected to the second protruding end (3) so that the second protruding end (3) can reciprocate along the longitudinal direction of the guide member (8).

6. A bidirectional laser rangefinder as described in claim 5, characterized in that: The second protruding end (3) is provided with a second level bubble (10) on one end face away from the instrument housing (1), and the second level bubble (10) and the first level bubble (6) are located on the same horizontal line.

7. A bidirectional laser rangefinder as described in claim 1, characterized in that: The instrument housing (1) is also provided with a switch button (11) for controlling the on / off state of the transmitter (4) and receiver (5) located on the second protruding end (3).

8. A bidirectional laser rangefinder as described in claim 7, characterized in that: One end of the switch button (11) is located inside the instrument housing (1) and electrically connected to the circuit board, and the other end passes through the instrument housing (1) and protrudes from the end face of the instrument housing (1). The switch button (11) is located within the stroke of the second protruding end (3) during reciprocating motion.

9. A bidirectional laser rangefinder as described in claim 2, characterized in that: The transmitting end (4) includes a laser transmitter, and the receiving end (5) includes a laser receiver located at the bottom of the laser transmitter, and both the laser transmitter and the laser receiver are electrically connected to the central processing unit.

10. A bidirectional laser rangefinder as described in claim 9, characterized in that: The laser emitters in multiple laser assemblies are located on the same horizontal line, and the laser receivers in multiple laser assemblies are located on the same horizontal line.

Images