CN220084306U

CN220084306U - Portable optical fiber tester

Info

Publication number: CN220084306U
Application number: CN202321406123.6U
Authority: CN
Inventors: 闫佐辉; 张锦标; 连献山; 李英乐; 蔡俊
Original assignee: Qualsen International Technologies Co Ltd
Current assignee: Qualsen International Technologies Co Ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2023-11-24
Anticipated expiration: 2033-06-02

Abstract

The utility model discloses a portable optical fiber tester, which comprises a shell, a main control board, an OTDR module and a clamping assembly, wherein the shell is provided with a first optical fiber receiving device; the shell is internally provided with an installation cavity, the main control board and the OTDR module are both arranged in the installation cavity, the OTDR module is electrically connected with the main control board, the shell is also provided with a via hole communicated with the installation cavity, the via hole is used for passing optical fibers connected with the OTDR module, and the OTDR module is used for detecting attenuation of the optical fibers and measuring the lengths of the optical fibers; the clamping assembly at least comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are both connected to the shell, the shell is provided with a mounting surface for mounting an external display device in communication connection with the main control board, and the first clamping piece and the second clamping piece are used for jointly clamping or releasing the external display device. Through the arrangement, the problem that the existing optical time domain reflectometer is inconvenient to carry due to the fact that the display screen is integrated is effectively solved.

Description

Portable optical fiber tester

Technical Field

The utility model relates to the technical field of optical fiber testing, in particular to a portable optical fiber tester.

Background

An optical time domain reflectometer is an instrument used in the field of telecommunications to measure characteristics of an optical fiber, and is used to test loss in the optical fiber, measure the length of the optical fiber, and find fault break points, etc., by back-scattered light generated when light propagates in the optical fiber.

The optical fiber detection work generally needs outdoor operation, and when a service person uses an optical time domain reflectometer to test the optical fiber characteristics, the detection result needs to be obtained in real time through a display device. The traditional optical time domain reflectometer is generally integrated with a display screen, so that the whole equipment is large in size and inconvenient to carry out.

Disclosure of Invention

The utility model mainly provides a portable optical fiber tester to solve the problem that the existing optical time domain reflectometer is inconvenient to carry due to large size caused by integration of a display screen.

In order to achieve the above object, the present utility model provides a portable optical fiber tester, which includes a housing, a main control board, an OTDR module and a clamping assembly;

the shell is internally provided with an installation cavity, the main control board and the OTDR module are arranged in the installation cavity, the OTDR module is electrically connected with the main control board, the shell is also provided with a via hole communicated with the installation cavity, the via hole is used for passing an optical fiber connected with the OTDR module, and the OTDR module is used for detecting the attenuation of the optical fiber and measuring the length of the optical fiber;

the clamping assembly at least comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are both connected to the shell, the shell is provided with a mounting surface for mounting an external display device in communication connection with the main control board, and the first clamping piece and the second clamping piece are used for jointly clamping or releasing the external display device.

In some embodiments of the present utility model, the portable optical fiber tester further includes an optical power meter module and a red light source module both disposed in the mounting cavity, the optical power meter module and the red light source module are both electrically connected to the main control board, the optical power meter module is configured to detect optical power of an optical fiber, and the red light source module is configured to perform visual fault location on the optical fiber;

the mounting surface is concave to be equipped with the mounting groove, first holder is located in the mounting groove, one side end of first holder with the cell wall of mounting groove rotates to be connected, the opposite side end of first holder can accomodate in the mounting groove or follow the notch of mounting groove stretches out.

In some embodiments of the present utility model, a first magnetic attraction piece is disposed at the bottom of the mounting groove, and a second magnetic attraction piece is disposed on the first clamping piece, and the first magnetic attraction piece and the second magnetic attraction piece are magnetically attracted and matched to fix the first clamping piece.

In some embodiments of the present utility model, the first clamping member is penetrated with a relief hole, the relief hole is aligned with the electrical connector of the external display device, and the relief hole is used for passing a wire electrically connected with the electrical connector of the external display device.

In some embodiments of the present utility model, the mounting surface is further recessed with an operation slot in communication with the mounting slot, and the operation slot provides an operation space for a user to hold the first clamping member.

In some embodiments of the present utility model, the housing has a side surface disposed at an angle to the mounting surface, and the side surface is concavely provided with a movable channel extending in a direction of the second clamping member approaching or separating from the first clamping member;

the second clamping piece comprises a sliding part and a movable clamping part, the sliding part is movably arranged in the movable channel, the movable clamping part is connected to the sliding part, and the sliding part is used for driving the movable clamping part to slide towards a direction close to or far away from the first clamping piece.

In some embodiments of the present utility model, the second clamping member further includes an elastic member disposed in the movable channel, one end of the elastic member is connected to the housing, and the other end of the elastic member is connected to the sliding portion, and the sliding portion has a tendency to slide in a direction approaching the first clamping member under the action of the elastic member.

In some embodiments of the present utility model, one end of the movable clamping portion is rotatably connected to the sliding portion, a rotation axis of the movable clamping portion is perpendicular to a connection line between the first clamping member and the second clamping member, the movable clamping portion has a first state of being attached to the sliding portion and a second state of being unfolded from the sliding portion, the mounting surface is provided with an avoidance gap communicating with the movable channel, and the avoidance gap is used for accommodating the movable clamping portion in the first state.

In some embodiments of the present utility model, a first limiting member is disposed on a side of the movable clamping portion facing the sliding portion, a second limiting member is disposed on a side of the sliding portion facing the movable clamping portion, and the first limiting member is in limiting fit with the second limiting member when the sliding portion is in the first state, so as to limit the movable clamping portion.

In some embodiments of the present utility model, the first clamping member includes a first telescopic portion and a first pressing portion disposed at an angle, the first telescopic portion stretches in a direction perpendicular to the mounting surface, one end of the first telescopic portion is connected to the housing, the other end of the first telescopic portion is connected to the first pressing portion, and the first pressing portion presses one side of the external display device under the action of the first telescopic portion;

the second clamping piece comprises a moving part, a second telescopic part and a second pressing part, wherein the moving part is slidably connected to the shell, the second telescopic part stretches along the direction perpendicular to the mounting surface, one end of the second telescopic part is connected to the moving part, the other end of the second telescopic part is connected to the second pressing part, the second pressing part and the second telescopic part are arranged at an included angle, the moving part is used for driving the second telescopic part and the second pressing part to move towards the direction close to or far away from the first pressing part, and the second pressing part presses one side of the external display device under the action of the second telescopic part.

The beneficial effects of the utility model are as follows: compared with the prior art, the portable optical fiber tester disclosed by the utility model does not need to integrate a display screen, but works through the external display device, so that the design of the portable optical fiber tester is miniaturized, the volume of the portable optical fiber tester is well reduced, the portable optical fiber tester is convenient to carry, great convenience is brought to outdoor operation of service personnel, and the use convenience of the portable optical fiber tester is improved, so that the work of detecting the optical fiber characteristics is better;

in addition, the external display equipment is released through the first clamping piece and the second clamping piece so as to be convenient to detach, so that the portable optical fiber tester is convenient to carry separately and improves the use convenience of the portable optical fiber tester.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a portable optical fiber tester according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an exploded view of an embodiment of a portable optical fiber tester according to the present utility model;

FIG. 3 is a schematic view of an embodiment of a clamping assembly according to the present utility model;

FIG. 4 is a schematic view showing the structure of an embodiment of the sliding portion and the supporting plate of the present utility model;

FIG. 5 is a schematic view of an embodiment of a first clamping member and a cover plate according to the present utility model;

FIG. 6 is a schematic view of an embodiment of a second clamping member and a cover plate according to the present utility model;

fig. 7 is a schematic structural view of another embodiment of the clamping assembly of the present utility model.

Reference numerals illustrate:

1. a housing; 11. a mounting cavity; 12. a mounting surface; 121. a mounting groove; 122. an operation groove; 123. avoiding the notch; 124. an assembly groove; 13. a via hole; 131. a first hole body; 132. a second aperture body; 133. a third hole body; 14. a dust-proof groove; 15. a dust cover; 16. a housing body; 161. a receiving groove; 17. a cover plate; 18. a battery; 19. a movable channel; 2. a main control board; 21. an OTDR connector; 22. a red light joint; 23. an optical power meter connector; 3. a clamping assembly; 4. a first clamping member; 41. a first magnetic attraction member; 42. a second magnetic attraction member; 43. avoidance holes; 44. a first telescopic part; 45. a first pressing part; 451. a guide post; 452. a cavity; 5. a second clamping member; 51. a sliding part; 511. a slit hole; 52. a movable clamping part; 53. an elastic member; 54. a first limiting member; 55. a second limiting piece; 56. a moving part; 57. a second telescopic part; 58. a second pressing part; 6. a support plate; 61. a protrusion.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a portable optical fiber tester, referring to fig. 1 to 3, which comprises a shell 1, a main control board 2, an OTDR module and a clamping assembly 3. The shell 1 is internally provided with an installation cavity 11, the main control board 2 and the OTDR module are both arranged in the installation cavity 11, the OTDR module is electrically connected with the main control board, and the OTDR module is used for detecting the attenuation of the optical fiber and measuring the length of the optical fiber. The housing 1 is further provided with a via hole 13 communicating with the mounting cavity 11, the via hole 13 allowing the optical fiber connected with the OTDR module to pass through, so that the optical fiber is connected with the OTDR module.

The clamping assembly 3 at least comprises a first clamping piece 4 and a second clamping piece 5, wherein the first clamping piece 4 and the second clamping piece 5 are connected to the shell 1, the shell 1 is provided with a mounting surface 12 for mounting an external display device in communication connection with the main control board 2, and the first clamping piece 4 and the second clamping piece 5 are used for jointly clamping or releasing the external display device. The external display device may be a mobile phone, a tablet computer or other terminal display devices.

So set up, install external display equipment through installing face 12, through the common centre gripping external display equipment of first holder 4 and second holder 5 centre gripping, with external display equipment fixed on the surface of casing 1, compare in the mode of current optical time domain reflectometer self integrated display screen, this portable optical fiber tester need not integrated display screen, but work through external display equipment, can reduce portable optical fiber tester design's miniaturization like this, portable optical fiber tester's volume well, but also conveniently carry, bring very big facility for business personnel's outdoor operation, thereby promote the convenience of use of this portable optical fiber tester, in order to detect the work of optical fiber characteristic better.

In addition, the external display device is released through the first clamping piece 4 and the second clamping piece 5, so that the external display device is convenient to detach, the operation is simple, the use is convenient, and the use convenience of the portable optical fiber tester is improved well.

The portable optical fiber tester further comprises a 4G module, a Bluetooth module and a WIFI module which are electrically connected with the main board, wherein the external display device is in communication connection with the portable optical fiber tester through one of the 4G module, the Bluetooth module and the WIFI module, and the external display device can also perform data interaction with the portable optical fiber tester through a data line. In one example, the portable optical fiber tester establishes communication connection with an external display device through a bluetooth module or a WIFI module, and performs signal interaction of optical fiber detection data, configuration instructions, test instructions and the like based on the communication connection. In another example, the portable optical fiber tester is in communication connection with the cloud platform based on a mobile communication module such as a 4G module, transmits optical fiber detection data to the cloud platform for analysis and processing, and then transmits the optical fiber detection data to external display equipment for display; meanwhile, the external display device can send configuration instructions, test instructions and the like to the portable optical fiber tester through the cloud platform, and the configuration instructions, the test instructions and the like are not particularly limited herein. Based on the embodiment of the utility model, the convenience and the functionality of the portable optical fiber tester are improved on the basis of being convenient to carry and go out.

With continued reference to fig. 1 to 3, the portable optical fiber tester further includes an optical power meter module and a red light source module both disposed in the mounting cavity 11, the optical power meter module and the red light source module are electrically connected with the main control board 2, the optical power meter module is used for detecting optical power of the optical fiber, and the red light source module is used for performing visual fault location on the optical fiber. The optical power meter module and the red light source module are electrically connected with the main control board 2, the optical power meter module is used for detecting the optical power of the optical fiber, and the red light source module is used for carrying out visual fault positioning on the optical fiber.

The side wall of one end of the housing 1 is concavely provided with a dust-proof groove 14, and the via hole 13 comprises a first hole body 131, a second hole body 132 and a third hole body 133, wherein the first hole body 131, the second hole body 132 and the third hole body 133 penetrate through the bottom of the dust-proof groove 14. The portable optical fiber tester further comprises an OTDR connector 21, a red light connector 22 and an optical power meter connector 23 which are all arranged in the dust-proof slot 14, wherein one end of the OTDR connector 21 is arranged on the first hole body 131, one end of the red light connector 22 is arranged on the second hole body 132, and one end of the optical power meter connector 23 is arranged on the third hole body 133. The OTDR connector 21 is connected with the OTDR module through a corresponding optical fiber, the red light connector 22 is connected with the red light source module through a corresponding optical fiber, and the optical power meter connector 23 is connected with the optical power meter module through a corresponding optical fiber.

The portable optical fiber tester further comprises a dust cover 15, the dust cover 15 is movably connected to the shell 1 and covers the notch of the dust-proof groove 14, the dust cover 15 is used for sealing the notch of the dust-proof groove 14 so as to effectively prevent dust from entering the dust-proof groove 14, keep the dust-proof groove 14 clean, and avoid the dust from affecting the usability of the OTDR joint 21, the red light joint 22 and the optical power meter joint 23, thereby improving the testing accuracy of the portable optical fiber tester in the testing process.

The housing 1 includes a housing body 16 and a cover plate 17, the housing body 16 is provided with a receiving groove 161, the cover plate 17 is attached to the housing body 16 and covers a notch of the receiving groove 161 to form a mounting cavity 11, and the mounting surface 12 is formed on a surface of the cover plate 17 on a side facing away from the housing body 16. The portable optical fiber tester further comprises a battery 18 electrically connected with the main control board 2, wherein the battery 18 can be fixedly arranged on one side of the cover plate 17, which is away from the mounting surface 12, and the battery 18 can also be arranged in the accommodating groove 161.

Referring to fig. 1 to 6, the mounting surface 12 is concavely provided with a mounting groove 121, the first clamping member 4 is disposed in the mounting groove 121, one side end of the first clamping member 4 is rotatably connected with a groove wall of the mounting groove 121, and the other side end of the first clamping member 4 can be received in the mounting groove 121 or protrude from a notch of the mounting groove 121. When not in use, the first clamping piece 4 can be accommodated in the mounting groove 121 through the mounting groove 121, so that the first clamping piece 4 is prevented from excessively protruding out of the mounting surface 12, and the use is convenient.

When in use, the first clamping piece 4 is switched from a state of being accommodated in the mounting groove 121 to a state of extending out of the mounting groove 121, so that the first clamping piece 4 can be approximately perpendicular to the mounting surface 12, and the external display device can be conveniently clamped together by matching with the second clamping piece 5, so that the external display device is fixed.

It is understood that the first clamping member 4 may be a clamping plate, and the first clamping member 4 may be a clamping frame or a clamping rod, so long as the side wall of the side end of the external display device can be resisted, which is not described in detail herein.

In some embodiments, the bottom of the mounting groove 121 is provided with a first magnetic attraction piece 41, the first clamping piece 4 is provided with a second magnetic attraction piece 42, and the first magnetic attraction piece 41 is magnetically attracted to the second magnetic attraction piece 42 to fix the first clamping piece 4. The first clamping member 4 is stably restrained in the mounting groove 121 by the first magnetic attraction member 41 and the second magnetic attraction member 42 so as to be capable of restraining the first clamping member 4 from protruding from the accommodating groove, and the first clamping member 4 is not easily protruded from the mounting groove 121 when not in use, so as to be portable.

The first magnetic attraction piece 41 may be a magnet or a metal sheet, and correspondingly, the second magnetic attraction piece 42 may be a magnet or a bonding sheet made of a magnetic material.

With continued reference to fig. 1 to 6, the first clamping member 4 is penetrated with a relief hole 43, the relief hole 43 is aligned with the electrical connector of the external display device, and the relief hole 43 is used for passing a wire electrically connected with the electrical connector of the external display device. So set up, when first holder 4 and second holder 5 centre gripping external display equipment, through dodging hole 43 in order to allow the wire to be connected with external display equipment's electrical connector to carry out data interaction or for external display equipment power supply with the convenience of use that promotes this portable optical fiber tester better with external display equipment.

It is understood that the electrical connector of the external display device is an electrical connector, a charging port, or a data interface, such as a charging port of a mobile phone.

In some embodiments, the mounting surface 12 is further recessed with an operation groove 122 in communication with the mounting groove 121, the operation groove 122 providing an operation space for a user to grip the first clamping member 4. When the first clamping member 4 is stored in the mounting groove 121, the user can conveniently operate the first clamping member 4 through the operation space provided by the operation groove 122, so that the first clamping member 4 can be conveniently switched from the state stored in the mounting groove 121 to the state extending out of the mounting groove 121, and the use is convenient.

With continued reference to fig. 1 to 6, the housing 1 has a side surface disposed at an angle to the mounting surface 12, and the side surface is concavely provided with a movable passage 19 extending in a direction in which the second clamping member 5 approaches or separates from the first clamping member 4, that is, the movable passage 19 is formed in the cover. The second clamping member 5 includes a sliding portion 51 and a movable clamping portion 52, the sliding portion 51 is movably disposed in the movable channel 19, the movable clamping portion 52 is connected to the sliding portion 51, and the sliding portion 51 is configured to drive the movable clamping portion 52 to slide in a direction approaching or separating from the first clamping member 4.

So set up, through the slip part 51 with can drive movable clamping part 52 towards being close to or keep away from the direction slip of first holder 4 to the outside display device of the different external dimensions of centre gripping, the suitability is strong, and the centre gripping flexibility ratio is high, can improve the centre gripping flexibility ratio of this portable optical fiber tester well.

The second clamping member 5 further includes an elastic member 53 disposed in the movable channel 19, wherein one end of the elastic member 53 is connected to the housing 1, that is, one end of the elastic member 53 is connected to the cover, and the other end of the elastic member 53 is connected to the sliding portion 51, and the sliding portion 51 has a tendency to slide in a direction approaching the first clamping member 4 under the action of the elastic member 53.

The sliding part 51 can be reset under the action of the elastic member 53 on the one hand, and the second clamping member 5 can be elastically matched with the first clamping member 4 to clamp the external display device through the elastic member 53 on the other hand, so that the external display device can be stably clamped, and the external display device can be better fixed on the outside of the shell 1, so that the use is convenient for a user.

The elastic member 53 may be a spring, a rubber strip, or other structural members with elastic properties, which will not be described in detail herein.

One end of the movable clamping part 52 is rotatably connected to the sliding part 51, the rotation axis of the movable clamping part 52 is perpendicular to the connecting line of the first clamping piece 4 and the second clamping piece 5, the movable clamping part 52 has a first state attached to the sliding part 51 and a second state unfolded from the sliding part 51, the mounting surface 12 is provided with an avoidance notch 123 communicated with the movable channel 19, and the avoidance notch 123 is used for accommodating the movable clamping part 52 in the first state.

When not in use, the movable clamping part 52 in the first state can be accommodated in the avoidance notch 123 through the avoidance notch 123. The movable clamping part 52 is further convenient to switch from the first state to the second state through the avoidance gap 123, so that the movable clamping part 52 is smoothly unfolded, and the external display equipment is conveniently clamped together by matching with the first clamping piece 4.

In addition, the movable grip portion 52 can be exposed from the escape notch 123 to facilitate the user's manipulation of the movable grip portion 52.

In some embodiments, the housing 1 further includes a support plate 6 connected to a side of the cover plate 17 facing the housing body 16, the support plate 6 is used for supporting the sliding portion 51, the sliding portion 51 is provided with a long hole 511, the long hole 511 extends along a sliding direction of the sliding portion 51, a protrusion 61 is convexly provided on a side of the support facing the cover plate 17, and the protrusion 61 passes through the long hole 511 to be connected with the cover plate 17.

So set up, on the one hand can support the slider 51 well through backup pad 6 for slider 51 can slide smoothly, in order to promote gliding stability, on the other hand is through protruding 61 and rectangular hole 511 sliding fit, in order to guide slider 51 slip, avoids slider 51 to produce the phenomenon of rocking at gliding in-process effectively, improves slider 51's sliding performance effectively.

With continued reference to fig. 1 to 6, a first limiting member 54 is disposed on a side of the movable clamping portion 52 facing the sliding portion 51, a second limiting member 55 is disposed on a side of the sliding portion 51 facing the movable clamping portion 52, and the first limiting member 54 is in limiting fit with the second limiting member 55 when the sliding portion 51 is in the first state so as to limit the movable clamping portion 52.

The movable clamping part 52 is not easy to switch from the first state to the second state under the action of the first limiting part 54 and the second limiting part 55, namely, the movable clamping part 52 keeps the state of being attached to the sliding part 51, so that the movable clamping part 52 is not easy to be connected with the sliding part 51 in the process of carrying the portable optical fiber tester, and the portable optical fiber tester is well improved in carrying convenience.

Wherein, first locating part 54 silica gel bump, second locating part 55 draw-in groove, the draw-in groove can be gone into to the silica gel bump to realize fixed activity clamping part 52. It is understood that the first and second limiting members 54 and 55 may be magnets.

Referring to fig. 7, in other embodiments, the first clamping member 4 includes a first telescoping portion 44 and a first hold-down portion 45 disposed at an angle, the first telescoping portion 44 telescoping in a direction perpendicular to the mounting surface 12. One end of the first telescopic part 44 is connected to the housing 1, the other end is connected to the first pressing part 45, and the first pressing part 45 presses one side of the external display device under the action of the first telescopic part 44.

The mounting surface 12 is concavely provided with the assembly groove 124, and the one end fixed connection of first telescopic part 44 is in the tank bottom of assembly groove 124, and first pressure portion 45 is in laminating contact with the mounting surface 12 under the state that first telescopic part 44 is in the shrink, and first pressure portion 45 is towards being close to or keep away from the direction of mounting surface 12 and remove, so sets up to the external display equipment of different thickness of centre gripping, and the suitability is strong.

The first clamping part is provided with a guide column 451 towards one side of the mounting surface 12 in a protruding mode, the guide column 451 is provided with a cavity 452 with one end being open, the first telescopic part 44 is far away from the cavity 452, the guide column 451 is matched with the groove wall of the assembly groove 124 in a guiding mode to guide the first pressing part 45 to move in the direction close to or far away from the mounting surface 12, moving fluency of the first pressing part 45 is improved, and therefore mounting efficiency of the first clamping part 4 for clamping the external display device is improved.

The second clamping piece 5 comprises a moving part 56, a second telescopic part 57 and a second pressing part 58, the moving part 56 is slidably connected to the shell 1, the second telescopic part 57 stretches and contracts along the direction perpendicular to the mounting surface 12, one end of the second telescopic part 57 is connected to the moving part 56, the other end of the second telescopic part 57 is connected to the second pressing part 58, the second pressing part 58 and the second telescopic part 57 are arranged at an included angle, the moving part 56 is used for driving the second telescopic part 57 and the second pressing part 58 to move towards the direction close to or far from the first pressing part 45, and the second pressing part 58 presses one side of the external display device under the action of the second telescopic part 57.

The first pressing part 45 and the second pressing part 58 can be used for well clamping external display equipment, and can also be used for clamping external display equipment with different thicknesses, so that the applicability is wider, and the device is suitable for popularization and application.

It can be appreciated that the end of the moving portion 56 near the first clamping member 4 is connected to the cover 17 through a spring, so that the moving portion 56 has a tendency to drive the second pressing portion 58 to move toward the first clamping portion 45 under the action of the spring, so that the second pressing portion 58 cooperates with the first pressing portion 45 to clamp the external display device together.

In some embodiments, the moving part 56 may be slidably connected to the outer surface of the housing 1, where the housing 1 is provided with a moving channel, and the moving part 56 may also be slidably provided in the moving channel.

The first expansion and contraction part 44 may be a spring, the first expansion and contraction part 44 may be a rubber strip or an elastic silica gel strip, the second expansion and contraction part 57 may be a spring, and the second expansion and contraction part 57 may be a rubber column or an elastic silica gel column.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. The portable optical fiber tester is characterized by comprising a shell, a main control board, an OTDR module and a clamping assembly;

2. The portable optical fiber tester according to claim 1, further comprising an optical power meter module and a red light source module both arranged in the installation cavity, wherein the optical power meter module and the red light source module are electrically connected with the main control board, the optical power meter module is used for detecting the optical power of the optical fiber, and the red light source module is used for performing visual fault positioning on the optical fiber;

3. The portable optical fiber tester according to claim 2, wherein a first magnetic attraction piece is arranged at the bottom of the mounting groove, a second magnetic attraction piece is arranged on the first clamping piece, and the first magnetic attraction piece is in magnetic attraction fit with the second magnetic attraction piece so as to fix the first clamping piece.

4. The portable optical fiber tester according to claim 2, wherein the first clamping member is penetrated with a through hole, the through hole is aligned with the electrical connector of the external display device, and the through hole is used for passing a wire electrically connected with the electrical connector of the external display device.

5. The portable optical fiber tester according to claim 2, wherein the mounting surface is further recessed with an operating groove in communication with the mounting groove, the operating groove providing an operating space for a user to grip the first clamping member.

6. The portable optical fiber tester according to claim 1, wherein the housing has a side surface disposed at an angle to the mounting surface, the side surface being concavely provided with a movable passage extending in a direction in which the second clamping member approaches or separates from the first clamping member;

7. The portable optical fiber tester according to claim 6, wherein the second clamping member further comprises an elastic member provided in the movable passage, one end of the elastic member is connected to the housing, the other end of the elastic member is connected to the sliding portion, and the sliding portion has a tendency to slide in a direction approaching the first clamping member under the action of the elastic member.

8. The portable optical fiber tester according to claim 6, wherein one end of the movable clamping portion is rotatably connected to the sliding portion, a rotation axis of the movable clamping portion is perpendicular to a connection line between the first clamping member and the second clamping member, the movable clamping portion has a first state of being attached to the sliding portion and a second state of being unfolded from the sliding portion, the mounting surface is provided with an avoidance notch communicating with the movable channel, and the avoidance notch is used for accommodating the movable clamping portion in the first state.

9. The portable optical fiber tester according to claim 8, wherein a first limiting member is disposed on a side of the movable clamping portion facing the sliding portion, a second limiting member is disposed on a side of the sliding portion facing the movable clamping portion, and the first limiting member is in limiting fit with the second limiting member when the sliding portion is in the first state, so as to limit the movable clamping portion.

10. The portable optical fiber tester according to claim 1, wherein the first clamping member comprises a first telescopic part and a first pressing part, wherein the first telescopic part is arranged in an included angle, the first telescopic part stretches in a direction perpendicular to the mounting surface, one end of the first telescopic part is connected with the shell, the other end of the first telescopic part is connected with the first pressing part, and the first pressing part presses one side of the external display device under the action of the first telescopic part;