Measuring instrument

Abstract

The present application discloses a measuring instrument, including a mainframe, a cantilever and two cameras, wherein the cantilever is connected to the mainframe and the cantilever is arranged through the mainframe along a first direction; the two cameras are respectively connected to the cantilever, the two cameras are respectively located on both sides of the mainframe along the first direction, and the two cameras are respectively connected to the mainframe by electrical signals. The present application example allows the cantilever to be arranged through the mainframe and the two cameras to be installed on the cantilever, so that the cantilever can be integrated with the mainframe to disperse the force on the cantilever to the mainframe, and convert the force on a single part into the force on the overall structure, so as to improve the stability of the cantilever, improve the stability of the two cameras, and thus improve the measurement accuracy of the measuring instrument.

Description

Technical Field

[0001] The present application relates to the field of visual measurement and positioning equipment, and in particular to a measuring instrument. Background Art

[0002] Currently, the inspection method for prefabricated components includes three steps: taking photos with a mobile phone, measuring with a ruler, and manually reading and recording. However, mobile phone photos are prone to shaking during measurement, resulting in insufficient measurement accuracy and ultimately unqualified component quality. Utility Model Content

[0003] The present application provides a measuring instrument, aiming to improve the problem of low measurement accuracy of existing measuring instruments.

[0004] In order to achieve the above technical effects, a technical solution adopted by the present application is: to provide a measuring instrument, comprising:

[0005] Host;

[0006] A cantilever is connected to the mainframe, and the cantilever is arranged through the mainframe along a first direction;

[0007] The two cameras are connected to the cantilever respectively, the two cameras are located at two sides of the host along the first direction respectively, and the two cameras are connected to the host by electrical signals respectively.

[0008] In some examples, the meter also includes:

[0009] The supporting member has a first end and a second end which are arranged opposite to each other, the first end of the supporting member is connected to the cantilever, and the second end of the supporting member is connected to the camera.

[0010] In some examples, the support member is disposed on the periphery of the cantilever, and the cross-sectional area of ​​the support member gradually increases from the host toward the corresponding camera.

[0011] In some examples, the camera includes:

[0012] A housing having a mounting hole; and

[0013] A camera module is arranged in the housing, and a lens of the camera module is arranged toward the mounting hole;

[0014] The shell is provided with a plug hole, and the cantilever is embedded in the plug hole.

[0015] In some examples, the cantilever abuts against the camera module.

[0016] In some examples, the support member is at least partially provided with an insertion hole; a convex rib is provided on the outer wall of the support member, and the convex rib abuts against the inner wall surface of the shell.

[0017] In some examples, the two cameras are symmetrically arranged on both sides of the host along the first direction.

[0018] In some examples, the meter also includes:

[0019] The fill light device is connected to the host, and the fill light device and the two cameras are arranged facing the same side.

[0020] In some examples, the meter also includes:

[0021] The control panel is connected to the main machine, and the control panel and the fill light device are staggered.

[0022] In some examples, the meter also includes:

[0023] The support frame is detachably connected to the host and is used to support the host.

[0024] In some examples, the meter also includes:

[0025] The wireless communication circuit is connected to the host and is used to receive wireless control signals.

[0026] The above scheme, by setting the cantilever through the host and installing two cameras on the cantilever, makes the cantilever and the host form an integral whole, so as to disperse the force on the cantilever to the host, and convert the force of a single part into the force of the overall structure, so as to improve the stability of the cantilever, improve the stability of the two cameras, and then improve the measurement accuracy of the measuring instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a structural schematic diagram of an example of a measuring instrument of the present application;

[0029] Figure 2 It is a front view of an example of a measuring instrument of the present application;

[0030] Figure 3 is a rear view of an example of a measuring instrument of the present application;

[0031] Figure 4 is a top view of an example of a measuring instrument of the present application;

[0032] Figure 5 yes Figure 4 A cross-sectional view taken along line 4A-4A;

[0033] Figure 6 yes Figure 5A partial enlarged view of the middle 5A area;

[0034] Figure 7 is an exploded schematic diagram of an example of a camera and a support member of the present application;

[0035] Figure 8 It is a module schematic diagram of an example of a measuring instrument of the present application;

[0036] Fig. 9 It is a structural schematic diagram of another example of the measuring instrument of the present application.

[0037] Among them: 100, host; 110, wireless communication circuit; 111, antenna; 120, control panel; 130, fill light device; 140, battery; 200, support frame; 300, cantilever; 310, support member; 311, rib; 400, camera; 410, shell; 411, jack; 412, mounting hole; 420, camera module; 1a, first direction. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0041] The multiple terms in the examples of this application refer to at least two (including two).

[0042] See also Figures 1 to 4 The present application proposes an example of a measuring instrument, including a host 100, a cantilever 300 and two cameras 400; wherein the cantilever 300 is connected to the host 100, and the cantilever 300 is arranged along the first direction 1a through the host 100; the two cameras 400 are respectively connected to the cantilever 300, and the two cameras 400 are respectively located on both sides of the host 100 along the first direction 1a, and the two cameras 400 are respectively connected to the host 100 via electrical signals.

[0043] The host 100 can be used as the main structure of the measuring instrument, and structures such as an electric control board can be installed on the host 100. The host 100 in this example can be a rectangular parallelepiped structure as a whole, and the host 100 has a through hole, and the through hole is set through the host 100 along the first direction 1a.

[0044] See also Figure 5 and Figure 6 The cantilever 300 is connected to the host 100. The cantilever 300 may be a metal alloy in a long strip shape, or may be other long strip structures extending along the first direction 1a. The cantilever 300 is arranged to penetrate the host 100 along the first direction 1a, so that the cantilever 300 can be kept at a preset position relative to the host 100. In this example, the cantilever 300 can penetrate the through hole on the host 100, and the cantilever 300 can be mutually embedded with the host 100. The cantilever 300 has two ends along the first direction 1a, and the two ends of the cantilever 300 along the first direction 1a can protrude from the outside of the host 100 respectively.

[0045] The two cameras 400 are connected to the cantilever 300, and the two cameras 400 are respectively arranged on both sides of the host 100 along the first direction 1a. In this example, the two cameras 400 can be respectively arranged at both ends of the cantilever 300 along the first direction 1a. The two cameras 400 are respectively connected to the host 100 by electrical signals, which means that the two cameras 400 can be respectively connected to the host 100 through wires, flexible circuit boards or other connectors, so that the host 100 can obtain image signals captured by the two cameras 400.

[0046] Please refer to Figure 7 and Figure 8 , the two cameras 400 are respectively connected to the host 100 by electrical signals, so that the images acquired by the two cameras 400 can be respectively transmitted to the host 100. The camera 400 in this example may include a camera module 420, and optionally, the camera 400 may also include a housing 410, the camera module 420 may be installed on the housing 410, and the housing 410 is connected to the cantilever 300. In this example, the two cameras 400 can form a binocular camera system, and the two cameras 400 synchronously capture images, obtain the pixel difference of the imaging of the same target to be measured by the two cameras 400 to obtain depth information, and then obtain three-dimensional information to reconstruct the object.

[0047] In this example, the first direction 1 a is an extension direction of the cantilever 300 , and the first direction 1 a may be a length direction of the cantilever 300 .

[0048] In this example, the two cameras 400 are connected to the cantilever 300 respectively, so that the cantilever 300 is used to support the two cameras 400. Since the cantilever 300 is inserted into the host 100 in this example, the cantilever 300 and the host 100 can form an integral structure to convert the force of the single structure of the cantilever 300 into the force of the overall structure, thereby dispersing the force of the overall structure, reducing the displacement of the cantilever 300 relative to the host 100, and improving the structural rigidity of the cantilever 300 and the host 100. The cantilever 300 in this example is inserted into the host 100 as a whole, so that the cantilever 300 can be embedded in the host 100, so that the cantilever 300 is connected to the host 100 as an integral structure, so as to improve the reliability of the connection between the cantilever 300 and the host 100, reduce the shaking of the cantilever 300, and further improve the stability of the camera 400, and improve the imaging quality of the measuring instrument. The measuring instrument in the example of this application can be used to detect steel bars or other objects to be measured.

[0049] See also Fig. 9, the host 100 in this example can be installed in a preset fixed position to obtain an image of the object to be measured. Optionally, the measuring instrument also includes a support frame 200 detachably connected to the host 100, and the support frame 200 is used to support the host 100. The support frame 200 in this example can be a tripod, and the support frame 200 can also be other structures that can be used to support the host 100. In some examples, the host 100 can be movably installed on a preset carrier, for example, the host 100 can be installed on a preset slide rail, and the host 100 can be pushed to move along the preset slide rail so that the two cameras 400 can obtain the image of the object to be measured. Optionally, the slide rail can be set on the ground or a building component.

[0050] In some examples, the two cameras 400 may be symmetrically disposed on both sides of the host 100 along the first direction 1 a so that the distances between the two cameras 400 and the host 100 are equal.

[0051] In some examples, the two cameras 400 can be set at both ends of the cantilever 300 along the first direction 1a to facilitate positioning of the two cameras 400; optionally, the two cameras 400 can be movably connected to the cantilever 300 along the first direction 1a to facilitate adjustment of the positions of the two cameras 400 as needed.

[0052] In some examples, the measuring instrument further includes a battery 140, and the battery 140 can be connected to the host 100. In this example, the battery 140 can be arranged on one side of the host 100 along the second direction, and the second direction is not parallel to the first direction 1a, so that the second direction is arranged at an angle with the first direction 1a, and the battery 140 can be staggered relative to the cantilever 300.

[0053] In some examples, the measuring instrument further includes a control panel 120, and the control panel 120 is connected to the host 100. The control panel 120 in this example can be used to display the image acquired by the camera 400, and the control panel 120 can also be used to display other information. The control panel 120 in this example can be directly connected to the host 100, and the control panel 120 can also be connected to the host 100 through an intermediate connector.

[0054] Please refer to Figure 8In some examples, the measuring instrument further includes a wireless communication circuit 110 connected to the host 100, and the wireless communication circuit 110 is used to receive wireless control signals. The wireless communication circuit 110 in this example can be integrated with the electric control board of the host 100, or the wireless communication circuit 110 can be a circuit board separately arranged outside the electric control board of the host 100; the wireless communication circuit 110 can be a WiFi circuit or a Bluetooth circuit. Optionally, the wireless communication circuit 110 can be provided with an antenna 111, and the antenna 111 can be arranged protruding from the outside of the host 100. The wireless communication circuit 110 is used to receive wireless control signals, and the host 100 receives the wireless control signals and can operate according to the wireless control signals. In this example, by setting the wireless communication circuit 110, the operation of the host 100 can be wirelessly controlled by the terminal, so as to facilitate wireless control of the host 100.

[0055] In some examples, the measuring instrument further includes a support member 310, the support member 310 having a first end and a second end arranged opposite to each other, the first end of the support member 310 being connected to the cantilever 300, and the second end of the support member 310 being connected to the camera 400. The support member 310 can be used as a reinforcement member between the camera 400 and the cantilever 300, and the camera 400 and the cantilever 300 can be connected through the support member 310, so that the support member 310 can be used to limit the shaking of the camera 400 relative to the cantilever 300, thereby improving the stability of the camera 400 on the cantilever 300. The support member 310 in this example can be a structure such as a reinforcing rib or a reinforcing sleeve.

[0056] The first end and the second end of the support member 310 may be two ends of the support member 310 along the first direction 1a, and the first end and the second end of the support member 310 may be two ends of the support member 310 that are staggered from each other; alternatively, the first end and the second end of the support member 310 may be two opposite or obliquely opposite walls of the support member 310. Optionally, the first end of the support member 310 in this example may be connected to the side wall of the cantilever 300, and the second end of the support member 310 may be connected to a side wall of the camera 400 facing the host 100.

[0057] In some examples, the support member 310 is disposed on the periphery of the cantilever 300 , and the cross-sectional area of ​​the support member 310 gradually increases from the host 100 to the direction corresponding to the camera 400 .

[0058] The support member 310 is sleeved on the periphery of the cantilever 300, which means that the support member 310 is a hollow structure, and the cantilever 300 passes through the hollow part of the support member 310 and is connected to the camera 400. Optionally, the cross-sectional area of ​​the support member 310 gradually increases from the host 100 to the direction of the corresponding camera 400, which means that the support member 310 is gradually expanded from the host 100 to the direction of the camera 400 on the corresponding side; in this example, the width of the support member 310 can be gradually increased from the host 100 to the direction of the corresponding camera 400, or the height of the support member 310 can be gradually increased from the host 100 to the direction of the corresponding camera 400, so that the cross-sectional area of ​​the support member 310 gradually increases.

[0059] In this example, the cross-sectional area of ​​the support member 310 is gradually enlarged, so that the cross-sectional area of ​​the side of the support member 310 close to the camera 400 is relatively larger, and the cross-sectional area of ​​the side of the support member 310 close to the host 100 is relatively smaller, so that the support member 310 can be used to support the camera 400, prevent the camera 400 from twisting or dislocating relative to the cantilever 300, reduce the relative shake of the camera 400, and improve the stability of the camera 400.

[0060] In some examples, the camera 400 includes a shell 410 and a camera module 420 , the shell 410 is provided with a mounting hole 412 ; the camera module 420 is disposed in the shell 410 , and the lens of the camera module 420 is arranged toward the mounting hole 412 ; the shell 410 is provided with a socket 411 , and the cantilever 300 is embedded in the socket 411 .

[0061] The housing 410 is at least partially a hollow structure, and the camera module 420 is installed in the housing 410 so that the housing 410 can protect the camera module 420. The housing 410 is provided with a mounting hole 412, and the camera module 420 can be arranged toward the mounting hole 412 so that the camera module 420 can be used to obtain an image of the object to be measured. The housing 410 is provided with a plug hole 411, and the cantilever 300 is embedded in the plug hole 411 so that the cantilever 300 can be connected to the housing 410. Optionally, in this example, the housing 410 has a wall facing the host 100 and a wall away from the host 100, and the plug hole 411 is provided on the wall of the housing 410 facing the host 100, and the cantilever 300 can penetrate the side wall of the housing 410 facing the host 100, and abut against the side wall of the housing 410 away from the host 100, so as to improve the stability of the connection between the housing 410 and the cantilever 300.

[0062] In some examples, the cantilever 300 is in contact with the camera module 420. In this example, the camera module 420 may be in contact with a side wall of the cantilever 300 along the second direction, the second direction is not parallel to the first direction 1a, the first direction 1a may be the length direction of the cantilever 300, the second direction may be the thickness direction of the cantilever 300, or the second direction may be the height direction of the cantilever 300. By contacting the cantilever 300 with the camera module 420, the cantilever 300 may be used to prevent the camera module 420 from moving relative to the housing 410, so as to improve the stability of the camera module 420 and thereby improve the imaging quality of the camera 400.

[0063] Please refer to Figure 7 In some examples, the support member 310 is at least partially provided with an insertion hole 411 ; a convex rib 311 is provided on the outer wall of the support member 310 , and the convex rib 311 abuts against the inner wall surface of the shell 410 .

[0064] The convex rib 311 may be a rib or a convex block protruding from the outer wall surface of the support member 310. In this example, the number of the convex rib 311 may be one, or the number of the convex rib 311 may be multiple, and the multiple convex ribs 311 may be arranged on different wall surfaces of the housing 410. The support member 310 is at least partially provided with the insertion hole 411, so that the support member 310 is partially located in the insertion hole 411, and the support member 310 may be partially located inside the housing 410. When the support member 310 is matched with the cantilever 300, the support member 310 may be connected and fixed to the cantilever 300 by a connecting member such as a screw. The convex rib 311 of the support member 310 abuts against the inner wall surface of the housing 410, so that the support member 310 and the inner wall surface of the housing 410 are adapted to each other, so as to limit the movement of the support member 310 in the first direction 1a, so that the support member 310 and the housing 410 maintain a preset position.

[0065] In some examples, the measuring instrument further includes a fill light device 130 connected to the host 100, and the fill light device 130 and the two cameras 400 are arranged facing the same side. The fill light device 130 is used to fill light in the direction of the object to be measured. The fill light device 130 and the camera 400 face the same side, which means that the light emitting surface of the fill light device 130 is in the same direction as the camera module 420 of the camera 400, so that the fill light device 130 can fill light for the object to be measured. In this example, by setting the fill light device 130, the problem of unclear images obtained by the camera 400 due to changes in light brightness can be improved, which helps to improve the problem of reduced image quality obtained by the camera 400 due to environmental influences. The fill light device 130 in this example can be a fill light. Optionally, the number of the fill light devices 130 in this example can be one, and the number of the fill light devices 130 can also be multiple.

[0066] In some examples, the measuring instrument further includes a control panel 120 connected to the host 100 . The control panel 120 can be fixed on the host 100 . The control panel 120 and the fill light device 130 are staggered to reduce interference between the fill light device 130 and the control panel 120 .

[0067] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A measuring instrument, characterized in that: include: Host; A cantilever, connected to the host, the cantilever is arranged to penetrate the host along a first direction; Two cameras are connected to the cantilever respectively, the two cameras are located at two sides of the host along the first direction respectively, and the two cameras are connected to the host by electrical signals respectively.

2. The measuring instrument according to claim 1, characterized in that The measuring instrument also includes: A support member has a first end and a second end that are arranged opposite to each other, the first end of the support member is connected to the cantilever, and the second end of the support member is connected to the camera.

3. The measuring instrument according to claim 2, characterized in that: The support member is sleeved on the periphery of the cantilever, and the cross-sectional area of ​​the support member gradually increases from the host to the direction corresponding to the camera.

4. The measuring instrument according to claim 2, characterized in that: The camera comprises: A housing, wherein a mounting hole is formed in the housing; and A camera module is disposed in the housing, and a lens of the camera module is disposed toward the mounting hole; The shell is provided with an inserting hole, and the cantilever is embedded in the inserting hole.

5. The measuring instrument according to claim 4, characterized in that: The cantilever is in contact with the camera module.

6. The measuring instrument according to claim 4, characterized in that The support member is at least partially penetrated by the insertion hole; a convex rib is arranged on the outer wall of the support member, and the convex rib abuts against the inner wall surface of the shell.

7. The measuring instrument according to claim 1, characterized in that: The two cameras are symmetrically arranged on both sides of the host along the first direction.

8. The measuring instrument according to any one of claims 1 to 7, characterized in that The measuring instrument also includes: A fill light device is connected to the host, and the fill light device and the two cameras are arranged facing the same side.

9. The measuring instrument according to claim 8, characterized in that The measuring instrument also includes: A control panel is connected to the host, and the control panel and the fill light device are staggered.

10. The measuring instrument according to any one of claims 1 to 7, characterized in that The measuring instrument also includes: a support frame, detachably connected to the host, for supporting the host; and / or The wireless communication circuit is connected to the host and is used for receiving wireless control signals.

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