CN210400345U - Distance measuring device - Google Patents
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- CN210400345U CN210400345U CN201921712652.2U CN201921712652U CN210400345U CN 210400345 U CN210400345 U CN 210400345U CN 201921712652 U CN201921712652 U CN 201921712652U CN 210400345 U CN210400345 U CN 210400345U
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Abstract
The utility model provides a distance measuring device, which comprises a connecting rod mechanism, wherein the connecting rod mechanism is rotatably connected between a first object to be measured and a second object to be measured, and comprises a first connecting rod assembly and a second connecting rod assembly which are rotatably connected; the first inclination angle measuring device is used for measuring a first inclination angle of the first connecting rod assembly, and when the second object to be measured is in a horizontal state, the distance between the first object to be measured and the second object to be measured is obtained according to the length of the first connecting rod assembly, the inclination angle of the first connecting rod assembly and the length of the second connecting rod assembly; therefore, the problem that the application range is limited due to the fact that the existing measuring method cannot normally work under a severe environment is solved.
Description
Technical Field
The utility model relates to a measuring equipment technical field particularly, relates to a range unit.
Background
With the progress of science and technology, the distance measurement method is also gradually diversified. The existing distance measuring method comprises graduated scale distance measurement, laser distance measurement, ultrasonic distance measurement and the like, and due to the influence of the measuring environment, the existing distance measuring method mostly cannot work normally under the severe environment, so that the application range is limited.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a range unit has solved current measuring method and often can't normally work under abominable environment, leads to the range of application to receive the problem of restriction.
In order to achieve the above object, the utility model adopts the following technical scheme:
a ranging apparatus, the apparatus comprising:
the connecting rod mechanism is rotatably connected between the first object to be detected and the second object to be detected and comprises a first connecting rod assembly and a second connecting rod assembly which are rotatably connected;
and the first inclination angle measuring device is used for measuring a first inclination angle of the first connecting rod assembly, and when the second object to be measured is in a horizontal state, the distance between the first object to be measured and the second object to be measured is obtained according to the length of the first connecting rod assembly, the inclination angle of the first connecting rod assembly and the length of the second connecting rod assembly.
In the implementation process, the distance between the first object to be measured and the second object to be measured refers to a straight line distance perpendicular to the first object to be measured and the second object to be measured. Therefore, the distance between the first object to be measured and the second object to be measured can be calculated according to the length of the connecting rod assembly of the connecting rod mechanism connecting the first object to be measured and the second object to be measured and the inclination angle of the first connecting rod. Along with the movement of the first object to be measured and the second object to be measured, the connecting rod structure rotates, and the distance between the first object to be measured and the second object to be measured can be calculated according to the change of the first inclination angle. During the measurement, first inclination measuring device is in encapsulated situation like the inside electronic component of angular transducer, is an independent individual, therefore link mechanism and first inclination measuring device do not receive external environment's influence, can avoid like the influence of greasy dirt, muddy water, dust etc., can normally work and use under adverse circumstances, and can be in stable operating condition and the precision is not influenced, consequently application range is comparatively extensive, solved current measuring method and often can't normally work under adverse circumstances, lead to the problem that the range of application receives the restriction.
Further, the apparatus further comprises: and the second inclination angle measuring device is used for measuring a second inclination angle of a second object to be measured so as to obtain the distance between the first object to be measured and the second object to be measured according to the length of the first connecting rod assembly, the inclination angle of the first connecting rod assembly, the length of the second connecting rod assembly and the second inclination angle.
In the above-mentioned realization process, when the second awaits measuring the object and rotates, then have the second inclination for the horizontal plane, at this moment, the first object of awaiting measuring and the second object of awaiting measuring throw away and be in parallel state, then the inclination of first link assembly for the second object of awaiting measuring is the difference of first inclination and second inclination.
Further, the distance between the first object to be measured and the second object to be measured is expressed as:
where d denotes a distance from the first object to the second object, om denotes a length of the first link assembly, mn denotes a length of the second link assembly, βAIndicating a first angle of inclination of the first link assembly relative to horizontal, βBRepresenting a second tilt angle of the second object to be measured with respect to the horizontal.
In the implementation process, the length of the first connecting rod assembly, the length of the second connecting rod assembly, the first inclination angle of the first connecting rod assembly relative to the horizontal plane and the second inclination angle of the second object to be detected relative to the horizontal plane are obtained, and the distance between the first object to be detected and the second object to be detected can be calculated through the formula.
Further, the second connecting rod assembly is a length-adjustable connecting rod assembly, and the second connecting rod assembly comprises a first adjustable connecting rod and a second adjustable connecting rod which are arranged in parallel;
the second adjustable connecting rod is provided with a through sliding chute along the length direction;
a length adjusting screw is arranged in the sliding groove, and the second adjustable connecting rod is connected with the first adjustable connecting rod in a sliding mode through the length adjusting screw so as to adjust the length of the second connecting rod assembly.
In the implementation process, when the distance between the first object to be measured and the second object to be measured is changed, the second adjustable connecting rod moves along the direction of the sliding groove to change the length of the second connecting rod assembly, and when the movement is stopped, the position of the second adjustable connecting rod can be fixed through the screw rod to play a limiting role.
Further, the device also comprises a damping device, wherein the damping device comprises a first damping device and a second damping device;
the first inclination angle measuring device is connected with the first connecting rod assembly through a first damping device;
the second inclination angle measuring device is detachably connected with the second object to be measured through a second damping device.
In the implementation process, damping devices are arranged below the first inclination angle measuring device and the second inclination angle measuring device to play a damping role, so that the first inclination angle measuring device and the second inclination angle measuring device can also work stably in a large vibration environment, and the accuracy of the first inclination angle measuring device and the second inclination angle measuring device is determined to be in a stable state.
Further, the first inclination angle measuring device and the second inclination angle measuring device are both inclination angle sensors.
The inclination angle can be quickly and accurately obtained by adopting the inclination angle sensor, and the inclination angle sensor is an independent measuring individual, so that the interference of the external environment is avoided, and the application range of the distance measuring device is favorably expanded.
Further, the first damping device comprises a first damping ball and a first damping ball support;
the first inclination angle measuring device is connected with the first damping ball support through a first damping ball;
the first damping ball support is fixed to the first link assembly by a screw.
In the implementation process, the first damping device is screwed on the first connecting rod assembly through a screw, and plays a role in fixing when the connecting rod mechanism is disassembled.
Further, the second damping device comprises a second damping ball and a second damping ball support;
the second inclination angle measuring device is connected with the second damping ball support through a second damping ball;
the second shock attenuation ball support passes through fixed magnet and adsorbs to the second object that awaits measuring.
The second damping device is adsorbed to the second object to be tested through the fixed magnet, and is convenient to detach.
Further, the device also comprises a first supporting seat and a second supporting seat;
the first connecting rod assembly is rotatably connected with the first supporting seat through a rotating shaft, and the first supporting seat is detachably connected with a first object to be detected;
the second connecting rod assembly is rotatably connected with the second supporting seat through a rotating shaft, and the second supporting seat is detachably connected with a second object to be tested.
In the implementation process, the first supporting seat and the second supporting seat are used for realizing the connection of the connecting rod mechanism with the first object to be tested and the second object to be tested and are respectively and vertically arranged with the first object to be tested and the second object to be tested, so that the lengths of the first supporting seat and the second supporting seat are required to be added for calculating the first object to be tested and the second object to be tested.
Further, the first supporting seat is adsorbed to a first object to be detected through a first powerful magnet;
and the second supporting seat is adsorbed to a second object to be detected through a second powerful magnet.
In the implementation process, the first powerful magnet and the second powerful magnet are used for realizing fixation and connection, and the disassembly is convenient.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a distance measuring device according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a link mechanism according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of the first object and the second object being measured both being parallel to the first link assembly and perpendicular to the second link assembly;
FIG. 4 is a schematic structural diagram of a first damping device provided in an embodiment of the present application;
fig. 5 is a schematic diagram of a second object to be measured 102 in a horizontal state according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a second inclination angle measuring device and a second damping device according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of the second object to be measured 102 when there is a certain inclination angle according to the embodiment of the present application.
Description of reference numerals:
101-a first object to be measured; 102-a second object to be measured; 210-a first link assembly; 220-a second linkage assembly; 221-a first adjustable link; 222-a second adjustable link; 230-length adjusting screw; 240-bolt for first fixed shaft; 250-bolts; 260-a nut; 301-a first support; 302-a second support seat; 410-a first powerful magnet; 310-bolts for second fixing shaft; 420-a second powerful magnet; 601-a first inclination measuring device; 602-a second inclination measuring device; 511-a first damping ball; 512-a first damping ball support; 521-a second dampening ball; 522-a second damping ball support; 530-fixed magnet; 540-bolt and nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or a point connection; either directly or indirectly through intervening media, or may be an internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a distance measuring device according to an embodiment of the present invention.
The device includes: the device comprises a first object to be detected 101, a second object to be detected 102 and a link mechanism which is rotatably connected between the first object to be detected 101 and the second object to be detected 102.
The linkage mechanism includes a first link assembly 210 and a second link assembly 220 that are rotatably coupled.
For example, as shown in fig. 2, a specific structure diagram of the link mechanism is shown. The first link assembly 210 and the second link assembly 220 may be rotatably coupled by a rotating shaft, the rotating shaft may be fixed by a bolt 240 by a first fixing shaft, and both the first link assembly 210 and the second link assembly 220 may rotate about the rotating shaft. As the distance between the first object to be measured 101 and the second object to be measured 102 changes, the angle between the first link assembly 210 and the second link assembly 220 is adjusted.
Illustratively, the second connecting rod assembly 220 is a length-adjustable connecting rod assembly, and the second connecting rod assembly 220 comprises a first adjustable connecting rod 221 and a second adjustable connecting rod 222 which are arranged in parallel;
the second adjustable connecting rod 222 is provided with a through chute along the length direction;
a length adjusting screw 230 is disposed in the sliding groove, and the second adjustable connecting rod 222 is slidably connected to the first adjustable connecting rod 221 through the length adjusting screw 230 and fixed to the first adjustable connecting rod 221 through the length adjusting screw 230 to adjust the length of the second connecting rod assembly 220.
When the distance between the first object to be measured 101 and the second object to be measured 102 changes, the second adjustable connecting rod 222 moves along the direction of the chute to change the length of the second connecting rod assembly 220, and when the movement stops, the position of the second adjustable connecting rod 222 can be fixed through the length adjusting screw 230, so that the limiting effect is achieved, and the stress of the second connecting rod assembly 220 is not affected.
Since the first object to be measured 101 and the second object to be measured 102 are in a parallel state, in order to facilitate connection between the first object to be measured 101 and the second object to be measured 102 and detachment of the distance measuring device formed by the link mechanism, the first supporting seat 301 and the second supporting seat 302 may be respectively disposed on the first object to be measured 101 and the second object to be measured 102; in order to facilitate calculation of the distance between the first object to be measured 101 and the second object to be measured 102, the first supporting seat 301 and the second supporting seat 302 may be disposed perpendicular to the corresponding first object to be measured 101 and second object to be measured 102. At this time, if the first link assembly 210 is perpendicular to the first supporting seat 301, the first link assembly 210 is perpendicular to the second link assembly 220, as shown in fig. 3, which is a schematic diagram of the first object to be measured 101 and the second object to be measured 102 both being parallel to the first link assembly 210 and perpendicular to the second link assembly 220. At this time, if the angle between the first link assembly 210 and the horizontal direction is 0, the distance between the first object 101 and the second object 102 can be expressed as:
the distance from the first object to be measured 101 to the second object to be measured 102 is the sum of the length of the first support seat 301, the length of the second connecting rod assembly 220 and the length of the second support seat 302.
Illustratively, the first link assembly 210 is rotatably connected with the first support base 301 through a rotating shaft, and the first support base 301 is detachably connected with the first object to be measured 101;
for example, one end of the first link assembly 210 near the first object 101 may be hinged, rotatably connected to the first supporting base 301 through a rotating shaft, and the end of the rotating shaft is fixed through the bolt 250 and the nut 260, and when the distance between the first object 101 and the second object 102 changes, the first link assembly 210 rotates around the rotating shaft.
The second connecting rod assembly 220 is rotatably connected with the second supporting seat 302 through a rotating shaft, and the second supporting seat 302 is detachably connected with the second object to be detected 102.
For example, one end of the second link assembly 220 close to the second object to be measured 102 is rotatably connected to the second supporting base 302 through a rotating shaft, an end of the rotating shaft is fixed by a bolt 310 through a second fixed shaft, and when a distance between the first object to be measured 101 and the second object to be measured 102 changes, the second link assembly 220 rotates around the rotating shaft.
For example, in order to facilitate disassembly and maintenance, the first support base 301 is attracted to the first object to be measured 101 through the first powerful magnet 410, so that the installation and maintenance are simple and convenient;
the second supporting base 302 is attracted to the second object to be tested 102 by the second strong magnet 420.
The apparatus further includes a first inclination angle measuring device 601, for example, the first inclination angle measuring device 601 may employ an inclination angle sensor for measuring a first inclination angle of the first link assembly 210, and when the second object to be measured 102 is in a horizontal state, the distance between the first object to be measured 101 and the second object to be measured 102 is obtained according to the length of the first link assembly 210, the inclination angle of the first link assembly 210, and the length of the second link assembly 220.
For example, as shown in fig. 4, the first shock absorbing device has a schematic structural diagram. In order to ensure that the first inclination angle measuring device 601 can stably work even under a large vibration environment, and the precision of the first inclination angle measuring device is in a stable state, the device further comprises a first damping device:
the first inclination measuring device 601 is connected with the first link assembly 210 through a first damping device;
specifically, the first damping means includes a first damping ball 511 and a first damping ball 512;
the first inclination angle measuring device 601 is connected with the first damping ball 512 through the first damping ball 511;
the first damping ball 512 is fixed to the first link assembly 210 by a screw.
Under the environment of large vibration, the first damping device plays a role in damping, and the first inclination angle measuring device 601 is ensured to be in a stable state.
As the distance between the first object to be measured 101 and the second object to be measured 102 decreases and the second object to be measured 102 is in a horizontal state (without the need for the second rotation angle measuring device), the first link assembly 210 rotates downward in the horizontal direction about the first supporting base 301, and the first link assembly 210 with respect to the horizontal plane has the first inclination angle βA。
Fig. 5 is a schematic diagram of the second object to be measured 102 in a horizontal state according to the embodiment of the present application. A rectangular coordinate system is established with the hinged point of the first support seat 301 and the first link assembly 210 as an origin, the length of the first support seat 301 is represented as qo, the length of the first link assembly 210 is represented as om, the length of the second link assembly 220 is represented as mn, and the length of the second support seat 302 is represented as np.
The first link assembly 210 is at an angle of 0 when in the horizontal state, is negative in the clockwise direction, and rotates through a first inclination angle, which is shown as βA。
The y coordinate of the m point is: y ism＝om*sinβA，βA∈(-90°，90°)；
The x coordinate of the m point is: x is the number ofm＝om*cosβA，βA∈(-90°，90°)；
The x coordinate of n points is: x is the number ofn＝om；
Establishing a right-angle triangle with mn as a hypotenuse, wherein two right-angle sides are nl and ml respectively, and then:
ml＝om-xm；
the y coordinate of n points is: y isn＝ym+nl；
As a result of the above, it is possible to obtain,
the distance between the first object 101 and the second object 102 is:
where d represents the distance from the first object 101 to the second object 102.
Therefore, when the second object to be measured 102 is in a horizontal state, the distance from the first object to be measured 101 to the second object to be measured 102 can be changed into the change of the angle of the first link assembly 210, and the first inclination angle measuring device 601 acquires the inclination angle of the first link assembly 210, so that the distance from the first object to be measured 101 to the second object to be measured 102 can be calculated, and the use is convenient. In addition, in the using process, the electronic elements in the first inclination angle measuring device 601 are in a fully sealed state, so that the influence of oil stain, dust and muddy water can be avoided, the maintenance cost is reduced, and the device can work normally and stably for a long time under the condition of severe environment; the first inclination angle measuring device 601 is not affected by the external environment, so that the measurement error change is small, and the requirement of measurement accuracy is met.
Example 2
On the basis of embodiment 1, when the second object to be measured 102 has a certain inclination angle, the second inclination measuring device 602 is disposed on the second object to be measured 102. For example, the second tilt measurement device 602 may employ a tilt sensor.
The second inclination measuring device 602 is disposed on the second object to be measured 102 through the second damping device.
For example, as shown in fig. 6, a schematic structural diagram of the connection between the second inclination angle measuring device 602 and the second damping device is shown. The second inclination measuring device 602 is detachably connected to the second object to be measured 102 through a second damping device.
The second damping means includes a second damping ball 521 and a second damping ball holder 522;
the second inclination measuring device 602 is connected with the second damping ball bracket 522 through the second damping ball 521;
the second damping ball holder 522 is connected to the fixing magnet 530 through a bolt and a nut 540, and is attracted to the second object to be measured 102 through the fixing magnet 530.
As shown in FIG. 7, the second inclination angle measuring device 602 will detect a non-zero inclination angle, and the second inclination angle, which is the angle of rotation of the second object 102, is represented as βB。
If the calculation using the formula obtained in embodiment 1 is performed at this time, an error will be generated, and in fact, the rotation angle of the first link assembly 210 relative to the second object to be measured 102 is βA-βB；
Therefore, the distance between the first object 101 and the second object 102 is:
the first inclination angle measuring device 601 is electrically connected with the second inclination angle measuring device 602, the first inclination angle measuring device 601 transmits the measured data of the first inclination angle to the second inclination angle measuring device 602, and the second inclination angle measuring device 602 obtains the distance between the first object to be measured 101 and the second object to be measured 102 through operation and outputs the distance data through the output interface.
In all the embodiments described above, the "large" and the "small" are relatively speaking, "more" and "less" are relatively speaking, "upper" and "lower" are relatively speaking, and the description of these relative terms is omitted.
It should be appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the present invention," or "as an alternative implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in this embodiment," "in an embodiment of the invention," or "as an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are exemplary and alternative embodiments, and that the acts and modules illustrated are not required to practice the invention.
In the various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence necessarily in order, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A ranging apparatus, the apparatus comprising:
the connecting rod mechanism is rotatably connected between the first object to be detected and the second object to be detected and comprises a first connecting rod assembly and a second connecting rod assembly which are rotatably connected;
and the first inclination angle measuring device is used for measuring a first inclination angle of the first connecting rod assembly, and when the second object to be measured is in a horizontal state, the distance between the first object to be measured and the second object to be measured is obtained according to the length of the first connecting rod assembly, the inclination angle of the first connecting rod assembly and the length of the second connecting rod assembly.
2. The ranging apparatus as claimed in claim 1, wherein the apparatus further comprises: and the second inclination angle measuring device is used for measuring a second inclination angle of a second object to be measured so as to obtain the distance between the first object to be measured and the second object to be measured according to the length of the first connecting rod assembly, the inclination angle of the first connecting rod assembly, the length of the second connecting rod assembly and the second inclination angle.
3. A ranging apparatus as claimed in claim 2, characterized in that the distance between the first object to be measured and the second object to be measured is represented by:
where d denotes a distance from the first object to the second object, om denotes a length of the first link assembly, mn denotes a length of the second link assembly, βAIndicating a first angle of inclination of the first link assembly relative to horizontal, βBRepresenting a second tilt angle of the second object to be measured with respect to the horizontal.
4. A ranging apparatus as claimed in claim 1 wherein the second linkage assembly is a length adjustable linkage assembly comprising first and second adjustable links arranged in parallel;
the second adjustable connecting rod is provided with a through sliding chute along the length direction;
a length adjusting screw is arranged in the sliding groove, and the second adjustable connecting rod is connected with the first adjustable connecting rod through the length adjusting screw so as to adjust the length of the second connecting rod assembly.
5. A ranging device as claimed in claim 2 wherein the device further comprises damping means comprising first and second damping means;
the first inclination angle measuring device is connected with the first connecting rod assembly through a first damping device;
the second inclination angle measuring device is detachably connected with the second object to be measured through a second damping device.
6. A ranging apparatus as claimed in claim 2 wherein the first and second inclination measuring devices are both inclination sensors.
7. A ranging device as claimed in claim 5, characterized in that the first damping means comprise a first damping ball and a first damping ball support;
the first inclination angle measuring device is connected with the first damping ball support through a first damping ball;
the first damping ball support is fixed to the first link assembly by a screw.
8. The ranging apparatus as claimed in claim 5, wherein: the second damping device comprises a second damping ball and a second damping ball bracket;
the second inclination angle measuring device is connected with the second damping ball support through a second damping ball;
the second shock attenuation ball support passes through fixed magnet and adsorbs to the second object that awaits measuring.
9. A ranging apparatus as claimed in claim 1 wherein the apparatus further comprises a first support mount and a second support mount;
the first connecting rod assembly is rotatably connected with the first supporting seat through a rotating shaft, and the first supporting seat is detachably connected with a first object to be detected;
the second connecting rod assembly is rotatably connected with the second supporting seat through a rotating shaft, and the second supporting seat is detachably connected with a second object to be tested.
10. A ranging apparatus as claimed in claim 9, wherein:
the first supporting seat is adsorbed to a first object to be detected through a first powerful magnet;
and the second supporting seat is adsorbed to a second object to be detected through a second powerful magnet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921712652.2U CN210400345U (en) | 2019-10-14 | 2019-10-14 | Distance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921712652.2U CN210400345U (en) | 2019-10-14 | 2019-10-14 | Distance measuring device |
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| CN210400345U true CN210400345U (en) | 2020-04-24 |
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| CN201921712652.2U Active CN210400345U (en) | 2019-10-14 | 2019-10-14 | Distance measuring device |
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