CN211740083U - Detection device and detection system - Google Patents

Abstract

The utility model discloses a detection device and detecting system relates to and measures technical field to the degree of depth time of solving the inspection hole is long, problem that the rate of accuracy is low. The detection device is applied to depth detection. The detection device includes: a display structure, a measurement structure and a fixing structure; when detection device is in the assembled state, the display structure supports with measuring structure and leans on, and fixed knot constructs the section of supporting that supports of setting at display structure and measuring structure for the fixed display structure supports with measuring structure and leans on the state. The detection system comprises the detection device provided by the technical scheme. The utility model provides a detection device is used for the degree of depth to detect.

Description

Detection device and detection system

Technical Field

The utility model relates to a measure technical field, especially relate to a detection device and detecting system.

Background

With the continuous development of high-speed trains, the brake pads are more and more important to the high-speed trains at present. In the process of manufacturing the brake pad, the structure of each part of the brake pad needs to be detected to ensure that the quality of the brake pad is qualified. For example: it is necessary to check whether the depth of the hole in the brake pad is acceptable.

At present, a caliper or a steel ball is usually adopted to measure related data of a hole, and then the depth of the hole is manually calculated through a machine or a human.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detection device and detecting system for quick, the degree of depth in accurate inspection hole.

In order to achieve the above object, the utility model provides a detection device is applied to the degree of depth and detects. The detection device includes: a display structure, a measurement structure and a fixing structure;

when detection device is in the assembled state, the display structure supports with measuring structure and leans on, and fixed knot constructs the section of supporting that supports of setting at display structure and measuring structure for the fixed display structure supports with measuring structure and leans on the state.

Compared with the prior art, the utility model provides an among the detection device, will support to lean on through fixed knot to lean on display structure together and measure the structure fixedly. The measuring structure is used for measuring the depth of the hole, and the display structure directly displays the measured data. Therefore, the method is more visual and convenient, the depth of the hole is not required to be calculated manually by a machine or a human, the time is saved, and the measurement precision is improved.

Optionally, the display structure includes: the display device comprises a display piece, a fixing piece and a detection piece;

the fixing piece is fixedly connected with the display piece; the detecting piece penetrates through the fixing piece and is movably arranged relative to the fixing piece; the fixing piece is a hollow fixing piece;

when the detection device is in an assembled state, the end face of the detection piece is abutted against the measurement structure.

Optionally, the measuring structure is a stepped shaft-shaped structure, and the stepped shaft-shaped structure sequentially comprises a leaning shaft section, a shaft shoulder, a guide shaft section and a measuring shaft section;

when the detection device is in an assembly state, the end face of the abutting shaft section abuts against the end face of the detection piece.

Further, the fixing structure comprises a first fixing piece and a second fixing piece;

when the detection device is in an assembled state, the first fixing piece and the second fixing piece are fixedly connected;

a first through hole is formed through the first fixing piece, one end, abutting against the abutting shaft section, of the detection piece is accommodated in the first through hole, and the fixing piece and the detection piece are accommodated in the first through hole;

a second through hole is formed through the second fixing piece, and the abutting shaft section, the shaft shoulder and the guide shaft section are accommodated in the second through hole;

when the detection device is in an assembled state, the measuring shaft section protrudes out of the second through hole;

when the detection device is in a detection state, the end face of the measuring shaft section, which is far away from the guide shaft section, protrudes out of the second through hole; or the end surface of the measuring shaft section, which is far away from the guide shaft section, is flush with the second through hole.

Furthermore, a third through hole is formed through the first fixing piece, and the central axis of the third through hole is crossed with the central axis of the first through hole;

the detection device further comprises a fastener;

when the detection device is in an assembly state, the fastener penetrates through the third through hole and then abuts against the fixing piece.

Further, the first fixing piece is in threaded connection with the second fixing piece; or the first fixing piece is clamped with the second fixing piece.

Furthermore, the third through hole is a threaded hole, and the fastening piece is a screw or a bolt; the fastener is screwed in the third through hole.

Further, the measuring shaft section is conical, spherical or straight rod-shaped.

Furthermore, an elastic piece is sleeved on the periphery of the abutting shaft section.

The utility model also provides a detecting system, including above-mentioned technical scheme detection device.

Compared with the prior art, the utility model provides a detecting system's beneficial effect and above-mentioned technical scheme detecting device's beneficial effect is the same, and the no longer repeated description is done here.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of an overall structure of a detection device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a connection of a part of an internal structure of a detecting device according to an embodiment of the present invention;

fig. 3 is an exploded view of the overall structure of a detecting device according to an embodiment of the present invention;

fig. 4a is a schematic structural diagram of a measurement structure according to an embodiment of the present invention;

fig. 4b is a schematic structural diagram of a hole to be detected according to an embodiment of the present invention;

fig. 5a is a schematic structural diagram of another measurement structure in an embodiment of the present invention;

fig. 5b is a schematic structural diagram of another hole to be detected according to an embodiment of the present invention;

fig. 6a is a schematic structural diagram of another measurement structure in an embodiment of the present invention;

fig. 6b is a schematic structural diagram of another hole to be detected in the embodiment of the present invention.

Reference numerals:

1 is a display structure, 10 is a display part, 101 is a dial, 11 is a fixed part, 12 is a detection part, 121 is a measuring rod, 122 is a measuring head, 13 is a guide rod, and 14 is a dustproof cap; 2, a measuring structure, 20, a leaning shaft section, 21, a shaft shoulder, 22, a guiding shaft section, 23, 231, 232, a spherical measuring shaft section and 233, wherein the leaning shaft section is used as a supporting shaft section; 3, a fixing structure, 30, a first fixing piece, 301, an external thread, 302, a first through hole, 303, a fastener, 31, a second fixing piece, 311, a threaded hole and 312, wherein the first fixing piece is a first fixing piece, the external thread is a second through hole; 4 is an elastic piece; 5 is a conical hole; 6 is a spherical hole; 7 is a straight bar-shaped hole.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the prior art, when the depth of a hole in a brake pad is detected, a caliper or a steel ball is generally adopted to measure related data of the hole, and then the depth of the hole is manually calculated by a machine or a person, so that the method wastes time and has low accuracy.

In order to solve the depth time of measuring hole among the prior art long, the low scheduling problem of rate of accuracy, the embodiment of the utility model provides a detection device. The detection device is applied to depth detection. It should be understood that the depth detection includes, but is not limited to, depth detection of holes, depth detection of grooves. The following description is given by way of example of the depth of the detection hole, and it is to be understood that the following description is illustrative only and not limiting.

Fig. 1 is a schematic view of an overall structure of a detection device according to an embodiment of the present invention. As shown in fig. 1, the detecting device includes: a structure 1, a measuring structure 2 and a fixing structure 3 are shown. Fig. 2 is a schematic view of a connection of a part of the internal structure of a detection device according to an embodiment of the present invention. As shown in fig. 2, when the detecting device is in an assembled state, the display structure 1 abuts against the measuring structure 2, and the fixing structure 3 is disposed at an abutting section of the display structure 1 and the measuring structure 2, for fixing an abutting state of the display structure 1 and the measuring structure 2.

Because the fixing structure 3 is arranged at the abutting section of the display structure 1 and the measuring structure 2, the display structure 1 and the measuring structure 2 are abutted closely. As shown in fig. 2, when the display structure 1 abuts against the measurement structure 2, the fixing structure 3 is disposed not only at the contact surface where the display structure 1 abuts against the measurement structure 2, but also at the extension where the display structure 1 abuts against the contact surface with the measurement structure 2. Not only can fasten display structure 1 and measure structure 2 this moment, still be convenient for simultaneously for the degree of depth in later stage inspection hole provides the reference surface.

The measuring structure 2 is used for measuring the depth of the hole, the data obtained by measurement are directly displayed through the display structure 1, the method is more visual and convenient, the depth of the hole does not need to be calculated through a machine or a person manually, the time is saved, and the measuring precision is improved. It should be understood that the test device may be sold in an assembled state or may be sold as a unit.

As a possible implementation manner, fig. 3 is an exploded view of a structure of a detection device in an embodiment of the present invention. As shown in fig. 3, the above display structure 1 includes: a display member 10, a fixing member 11 and a detecting member 12. The fixing member 11 is fixedly coupled to the display member 10. The detecting member 12 penetrates the fixing member 11 and is movably disposed with respect to the fixing member 11, and the fixing member 11 is a hollow fixing member. When the detection device is in the assembled state, the end face of the probe member 12 abuts against the measuring structure 2.

For example, as shown in fig. 3, the fixing member 11 may be a fixing rod, and the fixing rod is a hollow fixing rod. The hollow fixing rod is fixedly connected with the display member 10. The display 10 may be a display 10 with a dial 101 for displaying the depth of the hole to be measured, and the dial 101 may or may not have keys (not shown in fig. 3). Since the internal structure of the display 10 is not the focus of the present application, it will not be described herein. The probe 12 penetrates the hollow fixing rod and is movably disposed relative to the hollow fixing rod, that is, the probe 12 may be a probe 12 having a telescopic function. The probe 12 may include, for example, a measuring rod 121 and a measuring head 122. The measuring rod 121 has a telescopic function, and the measuring head 122 is arranged at one end of the measuring rod 121 far away from the display part 10 and used for measuring the depth of the hole. Be provided with guide bar 13 and dust cap 14 with the dead lever collineation and be located the one end department of display 10, when detecting 12 upward movement under the effect of external force, dust cap 14 can be along with the motion of detecting 12 and upward movement, guarantees simultaneously that display structure 1 inner structure can not receive the pollution, can not influence the precision that detects.

As shown in fig. 3, when the detection device is in the assembled state, the end face of the probe 12, i.e. the measuring head 122 of the probe 12, abuts against the measuring structure 2. Since the probe 12 can also be used to detect the depth of the hole, when the measuring head 122 of the probe 12 abuts against the measuring structure 2, the depth of the hole detected by the measuring structure 2 can be conducted to the measuring head 122, and the measuring head 122 in turn displays the depth of the hole detected by the measuring structure 2 through the display 10 by means of the structure inside the display 10. The dial 101 may directly display the numbers corresponding to the depths of the holes by using the dial 101, or may display the numbers by swinging the pointer, and the dial 101 has various data display modes, which are not specifically limited herein.

As a possible implementation, the measuring structure 2 is a stepped shaft-like structure, as shown in fig. 3. The stepped shaft-like structure comprises an abutting shaft section 20, a shaft shoulder 21, a guide shaft section 22 and a measuring shaft section 23 in sequence. When the detection device is in the assembled state, the end face of the abutment shaft section 20 abuts against the end face of the probe member 12.

In one example, as shown in fig. 4-6, the measuring shaft section 23 may be conical, spherical, or straight rod-shaped.

For example, fig. 4a is a schematic structural diagram of a measurement structure in an embodiment of the present invention. Fig. 4b is a schematic structural diagram of a hole to be detected in an embodiment of the present invention. As shown in fig. 4a and 4b, when the measuring shaft segment 23 is a tapered measuring shaft segment 231, it can be used to detect a tapered hole 5 fitted to the tapered measuring shaft segment 231. Fig. 5a is a schematic structural diagram of another measurement structure in an embodiment of the present invention. Fig. 5b is a schematic structural diagram of another hole to be detected according to an embodiment of the present invention. As shown in fig. 5a and 5b, when the measuring shaft segment 23 is a spherical measuring shaft segment 232, it can be used to detect a spherical hole 6 fitted with the spherical measuring shaft segment 232. Fig. 6a is a schematic structural diagram of another measurement structure in an embodiment of the present invention. Fig. 6b is a schematic structural diagram of another hole to be detected in the embodiment of the present invention. As shown in fig. 6a and 6b, when the measuring shaft segment 23 is a straight rod-shaped measuring shaft segment 233, it can be used to detect the straight rod-shaped hole 7 fitted with the straight rod-shaped measuring shaft segment 233. Different shapes of the measuring shaft section 23 can be selected depending on the shape of the hole to be detected. Since the measuring shaft segments 23 have various shapes, the types of holes that can be detected are various, and the application scenarios are also various. Of course, the measuring shaft section 23 may be a polygonal prism-shaped hole, an oval-shaped hole, or other irregular holes.

As a possible implementation, as shown in fig. 3, the fixing structure 3 includes a first fixing member 30 and a second fixing member 31. When the detection device is in an assembled state, the first fixing member 30 and the second fixing member 31 are firmly connected.

In an alternative manner, the connection manner of the first fixing member 30 and the second fixing member 31 may be set according to actual conditions. The following description is given by way of example only and is not intended as limiting.

The first connection mode is as follows: the first fixing member 30 is screwed to the second fixing member 31.

For example: as shown in fig. 3, one end of the first fixing member 30 has an external thread 301, and one end of the second fixing member 31 has a threaded hole 311 that is engaged with the external thread 301. In actual use, the external thread 301 of the first fixing member 30 is screwed with the threaded hole 311 of the second fixing member 31, so that the first fixing member 30 and the second fixing member 31 are tightly coupled by the thread. The first fixing member 30 and the second fixing member 31 are ensured not to be separated due to the influence of external force in the actual use process.

The second connection mode is as follows: the first fixing member 30 is engaged with the second fixing member 31.

For example: both ends of the first fixing member 30 have a protrusion, and both ends of the second fixing member 31 have a mounting groove engaged with the protrusion. In actual use, the protruding parts at the two ends of the first fixing member 30 are correspondingly placed into the two mounting grooves of the second fixing member 31, so that the first fixing member 30 and the second fixing member 31 are clamped into the fixing structure 3. And ensures that the protruding part does not come out from the mounting groove, so that the first fixing member 30 and the second fixing member 31 are tightly combined.

In a possible realization, the above-mentioned fixed structure 3 is composed of a first fixed part 30 and a second fixed part 31. The fixing structure 3 can be a closed fixing structure or a fixing structure with a hollow design, as long as the normal use is not affected. When the fixing structure 3 with a hollow design is adopted, the weight of the detection device can be reduced, and the manufacturing cost is saved. It should be understood that the materials for manufacturing the fixing structure 3 may be selected according to actual situations, and are not described herein again.

A first through hole 302 is opened through the first fixing member 30, and an end of the detecting member 12 abutting against the abutting shaft section 20 is accommodated in the first through hole 302. The fixing member 11 and the detecting member 12 are accommodated in the first through hole 302. As shown in fig. 2 and 3, an end of the probe 12 of the display structure 1 abutting against the abutting shaft segment 20 may be accommodated in the first through hole 302.

A second through hole 312 is opened through the second fixing member 31, and the abutting shaft segment 20, the shoulder 21 and the guide shaft segment 22 are accommodated in the second through hole 312.

As shown in fig. 3, the abutting shaft segment 20, the shoulder 21 and the guide shaft segment 22 of the measuring structure 2 of the stepped shaft-like structure are accommodated in the second through hole 312. Since the diameter of the abutting shaft section 20 and the guide shaft section 22 is smaller than the diameter of the shoulder 21 due to the stepped shaft-like structure, the diameter of the portion for accommodating the abutting shaft section 20 and the shoulder 21 is larger than the diameter for accommodating the guide shaft section 22 in the second through hole 312 described above. In this embodiment, the diameters of the abutment shaft section 20 and the guide shaft section 22 are equal. Of course, the diameters of the abutting shaft segment 20 and the guiding shaft segment 22 may also be unequal as long as the diameters of the abutting shaft segment 20 and the guiding shaft segment 22 are both smaller than the diameter of the shaft shoulder 21.

As shown in fig. 2 and 3, when the detecting device is in an assembled state, the measuring shaft section 23 protrudes from the second through hole 312. Since the second through hole 312 is adapted to receive the abutment of the shaft section 20 and the shoulder 21 has an interface with the section adapted to receive the guiding shaft section 22, the shoulder 21 abuts against said interface when the detecting means is in the assembled state. Since the diameter of shoulder 21 is larger than the diameter of abutment shaft section 20 in measuring structure 2, abutment shaft section 20 does not protrude outward relative to second through hole 312 even when measuring shaft section 23 protrudes outward relative to second through hole 312. Therefore, while ensuring that the measuring structure 2 abuts against the probe member 12 of the display structure 1, the measuring structure 2 does not slip out of the second through hole 312, and the detection of the depth of the subsequent hole is not affected.

A third through hole is formed through the first fixing member 30, and a central axis of the third through hole intersects with a central axis of the first through hole 302. The central axis of the third through hole is perpendicular to the central axis of the first through hole 302, but may not be perpendicular, and the positional relationship between the central axis of the third through hole and the central axis of the first through hole 302 may be set according to circumstances, which is not specifically limited herein. The detection device further comprises a fastener 303. When the detection device is in an assembled state, the fastening member 303 passes through the third through hole and abuts against the fixing member 11.

Illustratively, as shown in fig. 3, in the embodiment of the present invention, a third through hole (not shown in fig. 3) is opened through the first fixing member 30, and a central axis of the third through hole is perpendicular to a central axis of the first through hole 302. The fastening member 303 penetrates through the third through hole and abuts against the fixing member 11, and the fixing member 11 can be fastened and arranged in the first through hole 302 of the first fixing member 30 by the fastening member 303 penetrating through the third through hole, that is, the display structure 1 is fastened in the first fixing member 30. This allows the display structure 1 to remain fixed and avoids errors in the measurement. Of course, the fastening member 11 is fastened in the first through hole 302 not only by the fastening member 303 and the third through hole, but also by other suitable fastening means.

In an alternative, as shown in FIG. 3, the fastener 303 may be a screw or bolt. The third through-hole opened in the first fixing member 30 may be a screw hole. At this time, the fastener 303 is screwed into the threaded hole, and the fixing member 11 is tightly disposed in the first through hole 302 of the first fixing member 30. Of course, the fastening member 303 may be other practical parts, and the connection mode of the fastening member 303 and the third through hole may be set according to practical situations.

When the detection device is in a detection state, the end surface of the measuring shaft section 23 far away from the guide shaft section 22 protrudes out of the second through hole 312, or the end surface of the measuring shaft section 23 far away from the guide shaft section 22 is flush with the second through hole 312. Since the holes to be detected have different depths, the end face of the measuring shaft section 23 remote from the guide shaft section 22 will also have different positions relative to the second through-hole 312.

Illustratively, when the measuring shaft segment 23 is a tapered measuring shaft segment 231, and the height of the tapered measuring shaft segment 231 is 4mm, the measuring structure 2 with the tapered measuring shaft segment 231 is installed in a detecting device, and the depth of the tapered hole 5 is detected by the detecting device. If the depth of the tapered hole 5 is 2mm, the end surface of the measuring shaft section 23 away from the guide shaft section 22 protrudes out of the second through hole 312. If the depth of the conical hole 5 is 0mm, the end face of the measuring shaft section 23 remote from the guide shaft section 22 is flush with the second through hole 312.

In an alternative, as shown in fig. 3, an elastic member 4 is sleeved against the periphery of the shaft section 20.

For example, as shown in fig. 3, the elastic member 4 may be a spring. When the detection device is in an assembled state, the elastic element 4 is sleeved on the periphery of the abutting shaft section 20 and is located between the shaft shoulder 21 and the first fixing element 30 (specifically, the position provided with the external thread 301). At this time, the elastic member 4 may be in an original state without being compressed, and the elastic member 4 may be in other states as long as the subsequent detection operation is not affected. Because the peripheral cover that leans on shaft section 20 is equipped with the spring, when utilizing above-mentioned detection device to detect the degree of depth that has the hole of certain angle with the horizontal plane, measurement structure 2 conveniently stretches out and draws back under the effect of spring, and the data of conducting for display structure 1 this moment is more accurate, and then makes the data that detect more true, effective.

Before the detection by the detection device, the detection device needs to be initialized to zero. The zeroing initialization may be performed by placing the detection device on a horizontal plane such that the measuring shaft section 23 of the measuring structure 2 is completely pressed into the second fixing member 31, i.e. the end surface of the measuring shaft section 23 facing away from the guiding shaft section 22 is flush with the second through hole 312. At this time, the measuring shaft segment 23 in the measuring structure 2 moves upward relative to the second through hole 312, and since the probe member 12 in the display structure 1 abuts against the measuring shaft segment 23, when the measuring shaft segment 23 moves upward relative to the first through hole 302, the probe member 12 is moved upward relative to the first through hole 302. A number appears on the display element 10 of the display structure 1, and the fastening element 303 matching with the third through hole is screwed to fasten the fixing element 11 in the first through hole 302 of the first fixing element 30. If the display part 10 of the display structure 1 is provided with a key, a zero key or an on-off key on the display part 10 is pressed to enable the detection device to be zero. If the display 10 of the display structure 1 is a pointer, the dial 101 can be turned to zero. When the measuring shaft section 23 is forced upward relative to the first through hole 302, the spring is compressed between the shoulder 21 and the first fixing member 30, and is deformed.

When the detection device is initialized to zero and removed from the horizontal plane, the measuring shaft section 23 is forced to move downward relative to the second fixing member 31 under the action of the spring, the detecting member 12 moves downward relative to the first through hole 302, the measuring shaft section 23 protrudes out of the second through hole 312, and a number, for example, 4mm, is displayed on the display member 10 of the display structure 1. The number displayed is the height of the measuring shaft 23, i.e. the range of depth ranges of the hole that can be detected by the detection means. It will be appreciated that the range of range described above may be selected based on the height of the measuring shaft section 23 in the measuring structure 2. The zeroing mode is different according to different structures of the display structure 1, and the zeroing initialization can be performed according to actual conditions. It should be understood that the above-mentioned detection device has a certain error in the detection process, and the error range may be ± 1mm, and may also be other error ranges, which are not described herein.

According to different hole shapes to be detected, the measuring structure 2 with the measuring shaft section 23 with the matched shape is selected, and the selected measuring structure 2, the display structure 1 and the fixing structure 3 are assembled into the detection device. In the process of using the detection device, the detection device initialized to zero is placed above the hole to be detected, the measuring shaft section 23 in the measuring structure 2 is placed in the hole, and one end of the second fixing member 31 far away from the display structure 1 is overlapped with the horizontal plane where the hole is located. At this time, a number, which is the depth of the hole, is displayed on the display 10 of the inspection apparatus. By utilizing the detection device, the depth of the hole can be quickly and accurately detected, and whether the shape of the hole is qualified or not can be detected.

The depth data of the holes in the brake pads can be detected by using the detection device, and the data can be used for judging whether the depth of the holes is qualified or not, so that whether the brake pads provided with the holes are qualified or not is judged, and the safety of the brake pads is ensured.

The embodiment of the utility model provides a detecting system is still provided. The detection system comprises the detection device in the technical scheme.

Compared with the prior art, the embodiment of the utility model provides a detecting system's beneficial effect and above-mentioned technical scheme detecting device's beneficial effect the same, here does not do and gives unnecessary details.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

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 detection device, applied to depth detection, the detection device comprising: a display structure, a measurement structure and a fixing structure;

when the detection device is in an assembled state, the display structure is abutted to the measurement structure, and the fixing structure is arranged on the abutting section of the display structure and the measurement structure and used for fixing the abutting state of the display structure and the measurement structure.

2. The detection device according to claim 1, wherein the display structure comprises: the display device comprises a display piece, a fixing piece and a detection piece;

the fixing piece is fixedly connected with the display piece; the detecting piece penetrates through the fixing piece and is movably arranged relative to the fixing piece; the fixing piece is a hollow fixing piece;

when the detection device is in an assembled state, the end face of the detection piece is abutted against the measurement structure.

3. The detection device according to claim 2, wherein the measuring structure is a stepped shaft-like structure comprising, in order, a rest shaft section, a shoulder, a guide shaft section and a measuring shaft section;

when the detection device is in an assembled state, the end face of the abutting shaft section abuts against the end face of the detection piece.

4. The sensing device of claim 3, wherein the securing structure comprises a first securing member and a second securing member;

when the detection device is in an assembled state, the first fixing piece and the second fixing piece are fixedly connected;

a first through hole is formed through the first fixing piece, one end, abutting against the abutting shaft section, of the detection piece is accommodated in the first through hole, and the fixing piece and the detection piece are accommodated in the first through hole;

a second through hole is formed through the second fixing piece, and the abutting shaft section, the shaft shoulder and the guide shaft section are accommodated in the second through hole;

when the detection device is in an assembled state, the measuring shaft section protrudes out of the second through hole;

when the detection device is in a detection state, the end face, far away from the guide shaft section, of the measuring shaft section protrudes out of the second through hole; or the end surface of the measuring shaft section, which is far away from the guide shaft section, is flush with the second through hole.

5. The detecting device for detecting the rotation of the motor rotor according to the claim 4, wherein a third through hole is formed through the first fixing piece, and the central axis of the third through hole is crossed with the central axis of the first through hole;

the detection device further comprises a fastener;

when the detection device is in an assembly state, the fastening piece penetrates through the third through hole and then abuts against the fixing piece.

6. The detecting device for detecting the rotation of a motor rotor as claimed in claim 4, wherein the first fixing member is in threaded connection with the second fixing member; or the first fixing piece is clamped with the second fixing piece.

7. The detecting device for detecting the rotation of a motor rotor according to the claim 5, wherein the third through hole is a threaded hole, and the fastening piece is a screw or a bolt; the fastener is screwed in the third through hole.

8. A testing device according to claim 3 wherein the measuring shaft section is conical, spherical or straight rod shaped.

9. The detecting device for detecting the rotation of a motor rotor as claimed in claim 3, wherein an elastic member is sleeved on the outer periphery of the abutting shaft section.

10. A test system comprising a test device according to any one of claims 1 to 9.

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