Wear-resistant and impact-resistant plastic optical fiber connector and preparation method thereof

Abstract

The invention relates to the technical field of optical fiber connectors, in particular to a wear-resistant impact-resistant plastic optical fiber connector which comprises a plug-in base, an optical fiber plug, a first shell, a second shell and protective frames, the bottom of the first shell is connected with the top of the second shell, and the protective frames are arranged on one side of the first shell and one side of the second shell through bolt sets. Safety protection is performed on the plug-in base, the optical fiber connecting frame and the optical fiber plug in the optical fiber connector through the protection frame and the supporting frame, so that the optical fiber connector is prevented from being deformed after being impacted by the outside, and the use safety performance of the optical fiber connector is improved; the anti-impact performance of the optical fiber connector after being impacted is further improved through the protection plate, the wear-resistant performance of the optical fiber connector is effectively improved through the wear-resistant sleeve, and the wear-resistant sleeve can buffer the impact force borne by the optical fiber connector, so that a certain safety protection effect is achieved on the first shell and the second shell in the optical fiber connector.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber connectors, in particular to a wear-resistant and impact-resistant plastic optical fiber connector and a preparation method thereof. Background Art

[0002] Fiber optics have revolutionized communications. As the use of fiber optics increases, it becomes increasingly important to be able to repeatedly connect fibers. To connect two optical fibers together, this can be achieved using, for example, fiber optic connectors and fiber optic adapters. Fiber optic connectors are usually located at both ends of the optical fiber and can be inserted into the openings of the fiber optic adapter. The fiber optic adapter has two openings, each of which is connected to a fiber optic connector. A fiber optic connector is a device that makes a detachable (movable) connection between optical fibers. It precisely connects the two end faces of the optical fiber so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent possible, and the impact on the system caused by its involvement in the optical link is minimized.

[0003] The existing fiber optic connector is made of plastic material as a whole, which is easy to deform after being subjected to external impact. After deformation, the fiber optic connector is easy to cause damage to the internal fiber optic plug and plug-in base and other structures. Therefore, the safety of the use of the fiber optic connector is greatly reduced. In addition, the plug-in stability and smoothness between the fiber optic plug and the fiber optic connector decrease with the increase of the number of plug-in and pull-out times, and the use effect of the fiber optic connector is not ideal.

[0004] To this end, we propose a wear-resistant and impact-resistant plastic optical fiber connector, and also disclose a preparation method of the wear-resistant and impact-resistant plastic optical fiber connector. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wear-resistant and impact-resistant plastic optical fiber connector and a preparation method thereof, which are used to improve the impact resistance and wear resistance of the optical fiber connector after being impacted.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wear-resistant and impact-resistant plastic optical fiber connector, comprising a plug-in base, an optical fiber plug, a first shell, a second shell and a protective frame, the bottom of the first shell is connected to the top of the second shell, and the first shell and the second shell are both provided with a protective frame on one side through a bolt group, a plurality of reinforcing ribs are provided inside the protective frame, a plug-in base is provided inside the protective frame, and a connecting line is provided on one side of the plug-in base, an optical fiber connection frame is provided inside the first shell and the second shell, and an optical fiber plug is provided inside the optical fiber connection frame; A fixing frame is provided on one side of the inner wall of the first shell and the second shell, and a supporting frame is provided inside the first shell and the second shell, the inside of the supporting frame is slidably connected to the surface of the fixing frame, and the optical fiber connecting frame is arranged inside the supporting frame, a protective plate is provided inside the first shell and the second shell and on one side of the supporting frame, and two dustproof frames are provided on one side of the protective plate, one side of the two dustproof frames are connected to the side of the first shell and the second shell by a bolt group, and the surface of the first shell and the second shell is covered with a wear-resistant sleeve; When assembling the optical fiber connector, the first shell and the second shell are assembled, and then the support frame is installed into the interior of the first shell and the second shell, and the optical fiber connecting frame is installed in the interior of the support frame, and the support frame is used to improve the overall impact resistance of the optical fiber connector, and the plug-in base is installed in the interior of the protective frame, and then the protective frame is installed on one side of the first shell and the second shell by a bolt group, and the first shell and the second shell are connected by the protective frame. At the same time, the plug-in base, the optical fiber connecting frame and the optical fiber plug inside the optical fiber connector are safely protected by the protective frame and the support frame to prevent the optical fiber connector from being deformed after being impacted by the outside world, thereby improving the safety performance of the optical fiber connector. A protective plate is installed on one side of the support frame, and the protective plate is used to further improve the impact resistance of the optical fiber connector after being impacted. Finally, the two dustproof frames are respectively connected to the sides of the first shell and the second shell by bolt groups, and wear-resistant sleeves are put on the surfaces of the first shell and the second shell. The wear-resistant sleeve is used to effectively improve the wear resistance of the optical fiber connector, and the wear-resistant sleeve can buffer the impact force on the optical fiber connector, thereby playing a certain safety protection effect on the first shell and the second shell inside.

[0007] Preferably, protrusions are provided on both sides of the optical fiber plug, and four limiting grooves are symmetrically provided on both sides of the optical fiber plug, and grooves matching with the protrusions are provided on both sides of the inner wall of the optical fiber connection frame.

[0008] Preferably, a first movable groove is provided on one side inside the optical fiber connection frame, and a first movable plate is slidably provided inside the first movable groove, sliding rods are provided on both sides inside the first movable plate, and first springs are sleeved on one end of the two sliding rods located inside the first movable groove; When installing the optical fiber plug and the optical fiber connecting frame, one side of the optical fiber plug is inserted into the interior of the optical fiber plug, and the protrusions on both sides of the optical fiber plug slide inside the two grooves respectively until one side of the two protrusions slide into the interior of the first movable groove, and the two protrusions are used to apply pressure to the first movable plate, and the first movable plate drives the two movable rods to slide to one side, and one end of the two movable rods drives the fixed block to slide in the second sliding groove, so that one side of the fixed block slides to one side of the limit groove, and at this time, the limit block inside the fixed block enters the limit groove under the thrust of the second spring, and the matching connection between the limit block and the limit groove allows a stable connection to be formed between the optical fiber plug and the optical fiber connecting frame, and the optical fiber plug and the optical fiber connecting frame are not easy to separate, thereby improving the connection stability of the optical fiber connector.

[0009] Preferably, a first slide groove is provided inside the optical fiber connection frame, and a second slide groove is provided on one side of the inner wall of the first slide groove, and both ends of the slide rod are respectively connected to the first movable groove and one side of the inner wall of the second slide groove.

[0010] Preferably, a movable rod is sleeved on the surface of the sliding rod, one end of the movable rod is connected to one side of the first movable plate, and a fixed block is provided at one end of the movable rod located on the inner wall of the second sliding groove, a limit block is provided for the internal sliding of the fixed block, and a second spring is provided between one side of the limit block and one side of the inner wall of the fixed block.

[0011] Preferably, a third slide groove is further provided inside the optical fiber connection frame, and a movable block is slidably provided inside the third slide groove, a pull rope is provided on one side of the movable block, and one end of the pull rope is connected to one side of the limit block.

[0012] Preferably, a second movable groove is provided inside the optical fiber connecting frame and above the third slide groove, and the interior of the second movable groove is connected to the interior of the third slide groove, a second movable plate is slidably provided inside the second movable groove, and a push block is provided at the bottom of the second movable plate, and the bottom of the push block extends to the interior of the third slide groove.

[0013] Preferably, a plurality of third springs are provided on one side of the inner wall of the second movable groove, and one end of each of the third springs is connected to one side of the second movable plate, a pressing block is provided on one side of the second movable plate, and one side of the pressing block extends to the top of the optical fiber connection frame; When the optical fiber plug is to be disengaged from the optical fiber connection frame, the pressure block inside the through hole is pressed toward one side of the optical fiber connection frame, and one side of the pressure block pushes the second movable plate to slide inside the second movable groove, and the second movable plate drives the push block to slide inside the third slide groove, and the push block is used to push one side of the movable block, and the pull rope between the movable block and the limit block drives the limit block to slide inside the fixed block, thereby controlling the disengagement between the limit block and the limit groove, and then under the action of the first spring, the optical fiber plug is pushed out from the inside of the optical fiber connection frame, thereby achieving the disengagement between the optical fiber plug and the optical fiber connection frame.

[0014] Preferably, a through hole matching with the pressing block is provided on one side of the dustproof frame, and one side of the pressing block extends to the inside of the through hole.

[0015] A method for preparing a wear-resistant and impact-resistant plastic optical fiber connector, specifically comprising the following steps: Step 1: Forming and processing the parts of the optical fiber connector; Step 2: First, assemble the first shell and the second shell, then install the support frame into the first shell and the second shell, and install the optical fiber connection frame into the support frame; Step 3: Then, install the plug-in base inside the protective frame, and then install the protective frame on one side of the first shell and the second shell by using a bolt assembly; Step 4: Finally, install a protective plate on one side of the support frame, connect the two dustproof frames to the sides of the first shell and the second shell respectively through bolt groups, and put wear-resistant sleeves on the surfaces of the first shell and the second shell.

[0016] Compared with the prior art, it has the following beneficial effects: 1. The plug-in base, optical fiber connection frame and optical fiber plug inside the optical fiber connector are safely protected by the protective frame and the support frame to prevent the optical fiber connector from being deformed after being impacted by the outside world, thereby improving the safety performance of the optical fiber connector. A protective plate is installed on one side of the support frame, and the protective plate is used to further improve the impact resistance of the optical fiber connector after being impacted. Finally, the two dustproof frames are respectively connected to the sides of the first shell and the second shell through bolt groups, and wear-resistant sleeves are put on the surfaces of the first shell and the second shell. The wear-resistant sleeve is used to effectively improve the wear resistance of the optical fiber connector, and the wear-resistant sleeve can buffer the impact force on the optical fiber connector, thereby providing a certain safety protection effect on the first shell and the second shell inside.

[0017] 2. The two protrusions on both sides of the optical fiber plug are used to apply pressure to the first movable plate, and the first movable plate drives the two movable rods to slide to one side, and one end of the two movable rods drives the fixed block to slide in the second slide groove, so that one side of the fixed block slides to one side of the limit groove. At this time, the limit block inside the fixed block enters the limit groove under the thrust of the second spring, and a stable connection is formed between the optical fiber plug and the optical fiber connection frame through the matching connection between the limit block and the limit groove. The optical fiber plug and the optical fiber connection frame are not easy to separate, thereby improving the connection stability of the optical fiber connector.

[0018] 3. By pressing the pressure block inside the through hole toward one side of the optical fiber connector, one side of the pressure block pushes the second movable plate to slide inside the second movable groove, and the second movable plate drives the push block to slide inside the third slide groove. The push block is used to push one side of the movable block, and the limit block is driven to slide inside the fixed block through the pull rope between the movable block and the limit block to control the separation between the limit block and the limit groove, and then the optical fiber plug is pushed out from the inside of the optical fiber connector under the action of the first spring to achieve the separation between the optical fiber plug and the optical fiber connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a wear-resistant and impact-resistant plastic optical fiber connector structure according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the first shell and the second shell structure of an embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the optical fiber connection frame and the first movable plate according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the fixing block and the limiting block according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the optical fiber connection frame and the movable block structure according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the structure of the optical fiber connection frame and the second movable plate according to an embodiment of the present invention.

[0020] In the figure, 10, plug-in base; 20, optical fiber plug; 30, first shell; 40, second shell; 50, protective frame; 60, connecting line; 70, optical fiber connecting frame; 80, fixed frame; 90, supporting frame; 100, protective plate; 110, dustproof frame; 120, wear-resistant sleeve; 11, protrusion; 12, limit groove; 13, groove; 14, first movable groove; 15, first movable plate; 16, slide rod; 17, first spring; 18, first slide groove; 19, second slide groove; 21, movable rod; 22, fixed block; 23, limit block; 24, second spring; 25, third slide groove; 26, movable block; 27, pull rope; 28, second movable groove; 29, second movable plate; 31, push block; 32, third spring; 33, pressure block; 34, through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1 See also Figures 1 to 6 As shown, a wear-resistant and impact-resistant plastic optical fiber connector includes a plug-in base 10, an optical fiber plug 20, a first shell 30, a second shell 40 and a protective frame 50. The bottom of the first shell 30 is connected to the top of the second shell 40, and the protective frame 50 is provided on one side of the first shell 30 and the second shell 40 through a bolt group. A plurality of reinforcing ribs are provided inside the protective frame 50, the plug-in base 10 is provided inside the protective frame 50, and a connecting line 60 is provided on one side of the plug-in base 10, an optical fiber connecting frame 70 is provided inside the first shell 30 and the second shell 40, and an optical fiber plug 20 is provided inside the optical fiber connecting frame 70.

[0023] A fixing frame 80 is provided on one side of the inner wall of the first shell 30 and the second shell 40, and a supporting frame 90 is provided inside the first shell 30 and the second shell 40, the interior of the supporting frame 90 is slidably connected to the surface of the fixing frame 80, and the optical fiber connecting frame 70 is arranged inside the supporting frame 90, a protective plate 100 is provided inside the first shell 30 and the second shell 40 and on one side of the supporting frame 90, and two dustproof frames 110 are provided on one side of the protective plate 100, one side of the two dustproof frames 110 are connected to the side of the first shell 30 and the second shell 40 by a bolt group, and the surface of the first shell 30 and the second shell 40 is provided with a wear-resistant sleeve 120.

[0024] It should be noted that when assembling the optical fiber connector, the first shell 30 and the second shell 40 are assembled, and then the support frame 90 is installed into the first shell 30 and the second shell 40, and the optical fiber connection frame 70 is installed in the support frame 90, and the support frame 90 is used to improve the overall impact resistance of the optical fiber connector, and the plug-in base 10 is installed in the protective frame 50, and then the protective frame 50 is installed on one side of the first shell 30 and the second shell 40 by a bolt group, and the protective frame 50 is used to connect the first shell 30 and the second shell 40, and at the same time, the plug-in base 10, the optical fiber connection frame 70 and the optical fiber plug 20 inside the optical fiber connector are screwed together by the protective frame 50 and the support frame 90. To provide safety protection and prevent the optical fiber connector from being deformed after being impacted by the outside world, and to improve the safety performance of the optical fiber connector, a protective plate 100 is installed on one side of the support frame 90, and the protective plate 100 is used to further improve the impact resistance of the optical fiber connector after being impacted. Finally, the two dustproof frames 110 are respectively connected to the sides of the first shell 30 and the second shell 40 through a bolt group, and a wear-resistant sleeve 120 is put on the surface of the first shell 30 and the second shell 40. The wear-resistant sleeve 120 is used to effectively improve the wear resistance of the optical fiber connector, and the wear-resistant sleeve 120 can buffer the impact force on the optical fiber connector, thereby providing a certain safety protection effect on the internal first shell 30 and the second shell 40.

[0025] Furthermore, in order to increase the service life of the optical fiber connector, increase the number of times the optical fiber plug 20 is plugged in and out of the optical fiber connector, and increase the connection stability of the optical fiber plug 20 in the optical fiber connector, both sides of the optical fiber plug 20 are provided with protrusions 11, and both sides of the optical fiber plug 20 are symmetrically provided with four limiting grooves 12, both sides of the inner wall of the optical fiber connection frame 70 are provided with grooves 13 that match the protrusions 11, one side of the interior of the optical fiber connection frame 70 is provided with a first movable groove 14, and a first movable plate 15 is slidably provided inside the first movable groove 14, and both sides of the interior of the first movable plate 15 are provided with sliding rods 16, and the two sliding rods 16 are located at the first movable plate 15. A first spring 17 is sleeved on one end of a movable groove 14, a first slide groove 18 is arranged inside the optical fiber connection frame 70, and a second slide groove 19 is arranged on one side of the inner wall of the first slide groove 18, two ends of the slide rod 16 are respectively connected to one side of the inner wall of the first movable groove 14 and the second slide groove 19, and a movable rod 21 is sleeved on the surface of the slide rod 16, one end of the movable rod 21 is connected to one side of the first movable plate 15, and a fixed block 22 is arranged on one end of the movable rod 21 located on the inner wall of the second slide groove 19, a limit block 23 is arranged inside the fixed block 22 for sliding, and a second spring 24 is arranged between one side of the limit block 23 and one side of the inner wall of the fixed block 22.

[0026] It should be noted that when installing the fiber optic plug 20 and the fiber optic connecting frame 70, by inserting one side of the fiber optic plug 20 into the interior of the fiber optic plug 20, the protrusions 11 on both sides of the fiber optic plug 20 slide in the two grooves 13 respectively until one side of the two protrusions 11 slide into the interior of the first movable groove 14, and the two protrusions 11 are used to apply pressure to the first movable plate 15, and the first movable plate 15 drives the two movable rods 21 to slide to one side, and one end of the two movable rods 21 drives the fixed block 22 to slide in the second slide groove 19, so that one side of the fixed block 22 slides to one side of the limiting groove 12, at this time, the limiting block 23 inside the fixed block 22 enters the limiting groove 12 under the thrust of the second spring 24, and through the matching connection between the limiting block 23 and the limiting groove 12, a stable connection is formed between the fiber optic plug 20 and the fiber optic connecting frame 70, and the fiber optic plug 20 and the fiber optic connecting frame 70 are not easy to separate, thereby improving the connection stability of the fiber optic connector.

[0027] Furthermore, a third slide groove 25 is further provided inside the optical fiber connection frame 70, and a movable block 26 is slidably provided inside the third slide groove 25, a pull rope 27 is provided on one side of the movable block 26, and one end of the pull rope 27 is connected to one side of the limit block 23, by controlling the movable block 26 to slide inside the third slide groove 25, the pull rope 27 between the movable block 26 and the limit block 23 is used to drive the limit block 23 to slide inside the fixed block 22, and the separation between the limit block 23 and the limit groove 12 is controlled; a second movable groove 28 is provided inside the optical fiber connection frame 70 and above the third slide groove 25, and the interior of the second movable groove 28 is connected to the third The three slide grooves 25 are internally connected, a second movable plate 29 is slidably provided inside the second movable groove 28, and a push block 31 is provided at the bottom of the second movable plate 29, the bottom of the push block 31 extends to the inside of the third slide groove 25, a plurality of third springs 32 are provided on one side of the inner wall of the second movable groove 28, and one end of the plurality of third springs 32 are connected to one side of the second movable plate 29, a pressure block 33 is provided on one side of the second movable plate 29, and one side of the pressure block 33 extends to the top of the optical fiber connecting frame 70, a through hole 34 matching with the pressure block 33 is provided on one side of the dustproof frame 110, and one side of the pressure block 33 extends to the inside of the through hole 34.

[0028] It should be noted that when the fiber optic plug 20 is disengaged from the fiber optic connector 70, the pressure block 33 inside the through hole 34 is pressed toward one side of the fiber optic connector 70, and one side of the pressure block 33 pushes the second movable plate 29 to slide inside the second movable groove 28, and the second movable plate 29 drives the push block 31 to slide inside the third slide groove 25, and the push block 31 is used to push one side of the movable block 26, and the pull rope 27 between the movable block 26 and the limit block 23 drives the limit block 23 to slide inside the fixed block 22, so as to control the disengagement between the limit block 23 and the limit groove 12, and then the fiber optic plug 20 is pushed out from the inside of the fiber optic connector 70 under the action of the first spring 17, so as to realize the disengagement between the fiber optic plug 20 and the fiber optic connector 70.

[0029] Example 2 Furthermore, this embodiment also discloses a method for preparing a wear-resistant and impact-resistant plastic optical fiber connector, which specifically includes the following steps: Step 1: Forming and processing the parts of the optical fiber connector; Step 2: First, assemble the first housing 30 and the second housing 40, then install the support frame 90 into the first housing 30 and the second housing 40, and install the optical fiber connection frame 70 into the support frame 90; Step 3: Install the plug-in base 10 inside the protection frame 50, and then install the protection frame 50 on one side of the first shell 30 and the second shell 40 using a bolt assembly; Step 4: Finally, install the protective plate 100 on one side of the support frame 90, connect the two dustproof frames 110 to the sides of the first shell 30 and the second shell 40 respectively through the bolt group, and put the wear-resistant sleeve 120 on the surface of the first shell 30 and the second shell 40.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant and impact-resistant plastic optical fiber connector, comprising a plug-in base (10), an optical fiber plug (20), a first shell (30), a second shell (40) and a protective frame (50), wherein the bottom of the first shell (30) is connected to the top of the second shell (40), and the protective frame (50) is provided on one side of the first shell (30) and the second shell (40) through a bolt group, and a plurality of reinforcing ribs are provided inside the protective frame (50), characterized in that: A plug-in base (10) is arranged inside the protection frame (50), and a connecting line (60) is arranged on one side of the plug-in base (10); an optical fiber connection frame (70) is arranged inside the first shell (30) and the second shell (40), and an optical fiber plug (20) is arranged inside the optical fiber connection frame (70); A fixing frame (80) is provided on one side of the inner wall of the first shell (30) and the second shell (40), and a supporting frame (90) is provided inside the first shell (30) and the second shell (40), the inside of the supporting frame (90) is slidably connected to the surface of the fixing frame (80), and the optical fiber connecting frame (70) is arranged inside the supporting frame (90), a protective plate (100) is provided inside the first shell (30) and the second shell (40) and on one side of the supporting frame (90), and two dustproof frames (110) are provided on one side of the protective plate (100), one side of the two dustproof frames (110) are connected to the side of the first shell (30) and the second shell (40) through a bolt group, and the surface of the first shell (30) and the second shell (40) is covered with a wear-resistant sleeve (120).

2. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 1, characterized in that: Both sides of the optical fiber plug (20) are provided with protrusions (11), and four limiting grooves (12) are symmetrically arranged on both sides of the optical fiber plug (20), and both sides of the inner wall of the optical fiber connection frame (70) are provided with grooves (13) matching with the protrusions (11).

3. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 1, characterized in that: A first movable groove (14) is provided on one side inside the optical fiber connection frame (70), and a first movable plate (15) is slidably provided inside the first movable groove (14), sliding rods (16) are provided on both sides inside the first movable plate (15), and a first spring (17) is sleeved on one end of the two sliding rods (16) located inside the first movable groove (14).

4. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 3, characterized in that: The optical fiber connection frame (70) is provided with a first slide groove (18) inside, and a second slide groove (19) is provided on one side of the inner wall of the first slide groove (18), and the two ends of the slide rod (16) are respectively connected to the first movable groove (14) and one side of the inner wall of the second slide groove (19).

5. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 4, characterized in that: A movable rod (21) is sleeved on the surface of the slide rod (16), one end of the movable rod (21) is connected to one side of the first movable plate (15), and a fixed block (22) is provided at one end of the movable rod (21) located on the inner wall of the second slide groove (19), a limit block (23) is slidably provided inside the fixed block (22), and a second spring (24) is provided between one side of the limit block (23) and one side of the inner wall of the fixed block (22).

6. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 5, characterized in that: A third slide groove (25) is further provided inside the optical fiber connection frame (70), and a movable block (26) is slidably provided inside the third slide groove (25), a pull rope (27) is provided on one side of the movable block (26), and one end of the pull rope (27) is connected to one side of the limit block (23).

7. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 6, characterized in that: A second movable groove (28) is arranged inside the optical fiber connection frame (70) and above the third slide groove (25), and the interior of the second movable groove (28) is communicated with the interior of the third slide groove (25). A second movable plate (29) is slidably arranged inside the second movable groove (28), and a push block (31) is arranged at the bottom of the second movable plate (29), and the bottom of the push block (31) extends to the interior of the third slide groove (25).

8. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 7, characterized in that: A plurality of third springs (32) are provided on one side of the inner wall of the second movable groove (28), and one end of each of the third springs (32) is connected to one side of the second movable plate (29). A pressing block (33) is provided on one side of the second movable plate (29), and one side of the pressing block (33) extends to the top of the optical fiber connection frame (70).

9. The wear-resistant and impact-resistant plastic optical fiber connector according to claim 8, characterized in that: A through hole (34) matching with the pressing block (33) is provided on one side of the dustproof frame (110), and one side of the pressing block (33) extends to the interior of the through hole (34).

10. The method for preparing a wear-resistant and impact-resistant plastic optical fiber connector according to claim 1, characterized in that: The specific steps include: Step 1: Forming and processing the parts of the optical fiber connector; Step 2: First, assemble the first housing (30) and the second housing (40), then install the support frame (90) into the first housing (30) and the second housing (40), and install the optical fiber connection frame (70) into the support frame (90); Step 3: Then, the plug-in base (10) is installed inside the protection frame (50), and the protection frame (50) is installed on one side of the first shell (30) and the second shell (40) by means of a bolt assembly; Step 4: Finally, a protective plate (100) is installed on one side of the support frame (90), and two dustproof frames (110) are connected to the sides of the first shell (30) and the second shell (40) respectively through a bolt group, and a wear-resistant sleeve (120) is put on the surface of the first shell (30) and the second shell (40).

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