Optical fiber connection structure and optical cable distribution box

Abstract

The invention relates to an optical fiber connection structure and an optical cable distribution box, and relates to the technical field of optical communication. The optical cable connection structure comprises an optical fiber flange and an optical fiber connector. The optical fiber flange comprises a fixed base, a stand column, a pressing plate and a reset piece, and a butt joint channel allowing the optical fiber connector to be inserted therein is formed in the fixed base. The stand column is provided with a fixing protruding block which is used for locking the optical fiber connector. A locking sliding groove, a fixing groove, a first unlocking sliding groove and a second unlocking sliding groove are formed in the periphery of the optical fiber connector, when the optical fiber connector is inserted, the fixing protruding block is directly inserted into the fixing groove along the locking sliding groove and then can be locked, and when the optical fiber connector is unlocked, the pressing plate is pressed to enable the fixing protruding block to slide into the second unlocking sliding groove, and then the optical fiber connector is pulled out. The optical fiber connector can be locked without being pressed when being inserted into the optical fiber connector, and the optical fiber connector can be pulled out only by pressing once without being pressed all the time when being unlocked.

Description

Technical Field

[0001] The present application relates to the field of optical communication technology, and in particular to an optical fiber flange structure. Background Art

[0002] The optical cable splitter box is a wiring and distribution device for user terminals in the FTTH system. It is usually used to connect trunk optical cables and distribution optical cables outdoors, in corridors or indoors. It can realize functions such as optical fiber splicing, distribution and scheduling.

[0003] Conventional fiber optic cable distribution boxes have fiber flanges installed in the interface to connect the connector outside the box and the adapter inside the box. The two ends of the fiber flange are constructed as threads or buckles. When the connector outside the box is inserted, the threaded connection requires the connector to be aligned with the flange at the interface and then inserted and then rotated and tightened. The buckle connection requires manual pressing of the buckle to keep the buckle in an unlocked state during insertion, and then release the buckle after inserting the connector to fasten the buckle to the fiber flange. For the buckle locking connection method, although some fiber flanges have improved the pressing operation to make it easier to manually press the buckle, this method still requires constant pressing control to keep the fiber flange unlocked when inserting the connector, which is very inconvenient to operate. Summary of the invention

[0004] In order to solve the problem that the optical fiber flange needs to be pressed all the time to keep it unlocked when inserting the optical fiber connector, the present application provides an optical fiber connection structure.

[0005] The optical fiber connection structure provided in this application adopts the following technical solution: An optical fiber connection structure comprises an optical fiber flange and an optical fiber connector, wherein the optical fiber connector is inserted and connected to the optical fiber flange. The optical fiber flange comprises a fixed base and a column connected to each other, the fixed base has a docking channel for inserting the optical fiber connector, the column is located on at least one side of the docking channel, and a fixed protrusion is provided on the side of the column facing the docking channel; The outer circumference of the optical fiber connector is provided with a locking groove, and the locking groove is arranged along the length direction of the optical fiber connector. The depth of the locking groove from the insertion end to the other end of the optical fiber connector gradually decreases to form a first upward slope. A fixing groove is provided at the end of the first upward slope. The end of the first upward slope is higher than the fixing groove. The fixing protrusion slides along the first upward slope and then slides into the fixing groove.

[0006] By adopting the above technical solution, when inserting the optical fiber connector, the fixed protrusion is aligned with the locking slot. During the insertion process, the fixed protrusion slides along the uphill slope, the column is deformed and has a tendency to rebound into the locking slot. When the fixed protrusion slides out of the uphill slope, the column rebounds and causes the fixed protrusion to slide into the fixed groove. Since there is a height difference between the end of the uphill slope and the fixed groove, the end of the uphill slope is higher than the fixed groove, and the fixed protrusion is restricted in the fixed groove and is difficult to retreat into the fixed groove, thereby locking the optical fiber connector located in the docking channel. Therefore, when inserting the optical fiber connector, there is no need to always manually press to keep the optical fiber flange in the unlocked state. The optical fiber connector can be clamped by directly inserting it along the locking slot, which is easy to operate.

[0007] Preferably, the fixed groove is extended with a first unlocking groove, one end of the first unlocking groove is connected to and penetrates the fixed groove, the other end of the first unlocking groove is connected to a second unlocking groove, the second unlocking groove is arranged along the length direction of the optical fiber connector and penetrates the insertion end of the optical fiber connector, the column can slide along the length direction of the first unlocking groove, and when the optical fiber connector is pulled out, the column is first driven to make the fixed protrusion slide along the first unlocking groove to the second unlocking groove, and then the fixed protrusion slides in the second unlocking groove until it completely slides out of the second unlocking groove.

[0008] By adopting the above technical solution, when unlocking the optical fiber connector, the column is pressed to make the fixed protrusion slide from the fixed groove to the first unlocking slide groove, and then the fixed protrusion slides from the first unlocking slide groove to the second unlocking slide groove, and the optical fiber connector can be pulled out along the second unlocking slide groove.

[0009] Preferably, the depth of the first unlocking groove gradually decreases from one end connected to the fixing groove to the other end to form a second uphill slope, the end of the second uphill slope is higher than the second unlocking groove, and the fixing protrusion slides along the second uphill slope and then slides into the second unlocking groove.

[0010] By adopting the above technical solution, in the locked state, the second upslope restricts the fixed protrusion to a certain extent so that it is in the fixed groove. In the unlocked state, the end of the second upslope is higher than the second unlocking slot, thereby restricting the fixed protrusion to the beginning of the second unlocking slot, and the fixed protrusion is difficult to retreat to the first unlocking slot. Therefore, it is only necessary to press the column once to make the fixed protrusion slide to the second unlocking slot, and there is no need to press the column all the time. At the same time, the height difference between the second upslope and the second unlocking slot has a guiding effect, which can indicate that the fixed protrusion slides into place, and then the optical fiber connector is pulled out along the second unlocking slot.

[0011] Preferably, the fixed base has a slide groove, and the column slides in the slide groove along the length direction of the column.

[0012] Preferably, the column has a limiting protrusion on the side facing away from the docking channel, and the fixed base has a limiting groove for the limiting protrusion to slide, the limiting groove is connected with the sliding groove, the limiting protrusion only slides in the limiting groove, and the limiting protrusion abuts against the groove wall of the limiting groove to keep the column relatively fixed.

[0013] Preferably, a pressing plate is connected to the column, and pressing the pressing plate causes the column to slide along the first unlocking slide groove into the second unlocking slide groove.

[0014] Preferably, a reset member is provided on the fixed base, one end of the reset member abuts against the pressing plate, and the other end of the reset member abuts against the fixed base.

[0015] Preferably, a sleeve is passed through the fixed base, the reset member is sleeved on the sleeve, one end of the sleeve is connected to the pressing plate, and the other end of the sleeve is passed through the fixed base, and the sleeve can slide along its axial direction.

[0016] An optical cable fiber distribution box comprises a box body and a box cover, wherein the box body is provided with the optical fiber connection structure as described above, wherein the box cover is provided with a pressing hole, and the pressing plate is pressed through the pressing hole.

[0017] Preferably, a button is provided on the pressing plate, the button abuts against the pressing plate, and the button extends out from the pressing hole.

[0018] In summary, the present application includes at least one of the following beneficial technical effects: The operation is simple. When inserting the optical fiber connector, you only need to align the fixed protrusion with the locking slot and insert it into the fixed groove along the locking slot to achieve fastening. When unlocking, you only need to press the column once to make the fixed protrusion slide to the second unlocking slot without pressing it all the time. Then, you can pull out the optical fiber connector by sliding the fixed protrusion along the second unlocking slot. Save operating space. The optical fiber connector can be fixed by pressing the pressing plate or button with your fingers. There is no need to tighten it manually or hold it by hand. The required operating space is small, and more interfaces can be set up without changing the size of the optical cable distribution box. The locking effect is good. Different from locking the optical fiber connector by the elastic force of the elastic member, the locking component of the present application is a rigid component, that is, the connector is locked by snapping the fixing protrusion into the fixing groove, and it is difficult to lose the locking performance due to overcoming the elastic force of the elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the optical fiber connection structure in an embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the optical fiber flange in the embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the control component and the optical fiber connector in the embodiment of the present application.

[0022] Figure 4 It is a schematic diagram of the structure in which the control member is connected to the optical fiber connector in a locked state in an embodiment of the present application.

[0023] Figure 5 It is a schematic cross-sectional structural diagram of the optical fiber connection structure in a locked state in an embodiment of the present application.

[0024] Figure 6 It is a schematic diagram of the structure in which the control component is connected to the optical fiber connector in the unlocked state in an embodiment of the present application.

[0025] Figure 7 It is a schematic cross-sectional structural diagram of the optical fiber connection structure in the unlocked state in the embodiment of the present application.

[0026] Figure 8 It is a schematic diagram of the installation structure of the optical fiber flange in the embodiment of the present application.

[0027] Fig. 9 It is a schematic cross-sectional structural diagram of the optical fiber connection structure in which the reset member is arranged on the other side of the docking channel in the embodiment of the present application.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the optical fiber flange when the control member is tilted relative to the fixed base in the embodiment of the present application.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of one end of the optical fiber flange connected to the dust cap in the embodiment of the present application.

[0030] Fig.12 It is a three-dimensional structural schematic diagram of an optical cable distribution box equipped with an optical fiber connection structure in an embodiment of the present application.

[0031] Fig.13 It is a schematic cross-sectional view of the optical cable distribution box installed with an optical fiber connection structure in an embodiment of the present application.

[0032] Explanation of the reference numerals: 1. fiber optic flange; 2. fiber optic connector; 11. fixed base; 12. control member; 121. column; 122. pressing block; 111. docking channel; 123. fixing protrusion; 21. locking slide; 211. first upward slope; 22. fixing groove; 23. first unlocking slide; 24. second unlocking slide; 231. second upward slope; 112. slide; 124. limiting protrusion; 113. limiting groove; 125. pressing plate; 126. reset member; 127. first pressure plate; 128. second pressure plate; 114. guide hole; 129. sleeve; 3. dust cap; 4. box body; 5. box cover; 51. pressing hole; 13. button. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-13 This application is described in further detail.

[0034] The embodiment of the present application discloses a fiber optic connection structure. The fiber optic connection structure includes a fiber optic flange 1 and a fiber optic connector 2. One end of the fiber optic flange 1 is for the fiber optic connector 2 to be inserted and connected. The other end of the fiber optic flange 1 can be constructed to connect to the fiber optic connector 2 or to be directly led out of the optical cable. Figure 1 The optical fiber flange 1 includes a fixed base 11 and a control member 12. The fixed base 11 is used to insert the optical fiber connector 2. The control member 12 is arranged on the fixed base 11 and is used to lock and unlock the optical fiber connector 2. The control member 12 includes a connected column 121 and a pressing block 122. The column 121 is inserted into the fixed base 11 and can slide along its length direction. The column 121 is used to lock the optical fiber connector 2. The pressing block 122 is arranged on the column 121 to facilitate driving the column 121. When inserting the optical fiber connector 2, the optical fiber connector 2 is directly inserted into one end of the fixed base 11. After the optical fiber connector 2 cannot continue to move along the insertion direction, it is in a locked state. When pulling out the optical fiber connector 2, the pressing block 122 is pressed to force the column 121 to slide. After the column 121 slides to the point where it cannot continue to move along the sliding direction, it is in an unlocked state. Thereafter, the pressing is released to pull out the optical fiber connector 2.

[0035] Reference Figure 1 and Figure 2 The fixed base 11 has a docking channel 111 for inserting the optical fiber connector 2, and a column 121 is located at least on one side of the docking channel 111. A preferred embodiment is that there is a column 121 on each side of the docking channel 111. The column 121 has a fixed protrusion 123 on one side facing the docking channel 111. The fixed protrusion 123 is used to lock the optical fiber connector 2 in the docking channel 111. The fixed protrusion 123 is provided on at least one side of the column 121. A preferred embodiment is that there is one on each side of the column 121. The shape of the fixed protrusion 123 can be a cuboid or a sphere.

[0036] Reference Figure 2 and Figure 3 The outer circumference of the optical fiber connector 2 has a locking groove 21, which is located on the side of the optical fiber connector 2 facing the column 121, and the side where the locking groove 21 is located is a plane. The locking groove 21 is arranged along the length direction of the optical fiber connector 2, and the locking groove 21 runs through the insertion end of the optical fiber connector 2. The locking groove 21 provides a sliding track for the fixed protrusion 123, and the width of the locking groove 21 is greater than or equal to the width of the fixed protrusion 123, so that the fixed protrusion 123 can be inserted into the locking groove 21 to reach the locking position. Correspondingly, as a preferred mode, the connector of the optical fiber connector 2 is constructed as a square connector, and the docking channel 111 is a square channel, so as to facilitate the alignment and insertion of the optical fiber connector 2. Obviously, the connector of the optical fiber connector 2 can also be constructed so that at least one surface is a plane, and the locking groove 21 needs to be arranged on the plane. When inserting the optical fiber connector 2, the plane with the locking groove 21 needs to face the column 121 so that the fixed protrusion 123 is aligned with the locking groove 21. As an optional method, the entrance part of the docking channel 111 can be set as a circular channel, and the interior can be set as a square channel. The optical fiber connector 2 first passes through the circular channel and then through the square channel. The circular channel facilitates the insertion of the optical fiber connector 2, and the square channel is used to guide the optical fiber connector 2 to be inserted into the designated position.

[0037] Reference Figure 3 and Figure 4 The depth of the locking groove 21 from the insertion end of the optical fiber connector 2 to the other end gradually decreases to form a first upward slope 211, and the first upward slope 211 is a smooth slope. The starting end of the locking groove 21 is the insertion end of the optical fiber connector 2, and the end of the locking groove 21 is the end of the first upward slope 211. The end of the first upward slope 211 is connected to a fixing groove 22, and the fixing groove 22 is for the fixing protrusion 123 to be inserted to lock the optical fiber connector 2. The end of the first upward slope 211 is higher than the fixing groove 22 so that the fixing protrusion 123 is difficult to retreat into the locking groove 21 after sliding into the fixing groove 22.

[0038] Reference Figure 4 and Figure 5When the optical fiber connector 2 is inserted, the column 121 remains relatively still, and the optical fiber connector 2 is displaced in the insertion direction, so that the fixed protrusion 123 is displaced relative to the locking groove 21. In the process of the fixed protrusion 123 sliding along the first upward slope 211, the column 121 is deformed and tilted toward the side away from the docking channel 111. When the fixed protrusion 123 slides off the end of the first upward slope 211, the column 121 rebounds and the fixed protrusion 123 bounces into the fixed groove 22. Since the end of the first upward slope 211 is higher than the fixed groove 22, the fixed protrusion 123 is restricted in the fixed groove 22 and remains relatively fixed, thereby achieving the locking of the optical fiber connector 2. The height difference between the end of the first upward slope 211 and the fixed groove 22 has an indication function, which can indicate that the fixed protrusion 123 slides into place.

[0039] Reference Figure 6 and Figure 7 The fixed groove 22 is extended with a first unlocking groove 23, one end of which is connected to and penetrates the fixed groove 22, and the column 121 can slide along the length direction of the first unlocking groove 23. The other end of the first unlocking groove 23 is connected with a second unlocking groove 24, one end of which is penetrated with the first unlocking groove 23 and is arranged along the length direction of the optical fiber connector 2, and the other end of the second unlocking groove 24 penetrates the insertion end of the optical fiber connector 2, and the second unlocking groove 24 is arranged parallel to the locking groove 21. The first unlocking slot 23 and the second unlocking slot 24 form a track for the fixed protrusion 123 to slide out. When the optical fiber connector 2 is pulled out, the column 121 is pressed to move the fixed protrusion 123 from the fixed groove 22 to the end of the first unlocking slot 23, that is, the beginning of the second unlocking slot 24. At this time, in order to prevent the fixed protrusion 123 from retreating to the first unlocking slot 23, it is necessary to keep pressing and then pull the optical fiber connector 2 outward for a certain distance so that the fixed protrusion 123 abuts against the slot wall of the second unlocking slot 24. When the fixed protrusion 123 is located in the second unlocking slot 24, the optical fiber connector 2 is not hindered from being pulled out, and the fixed protrusion 123 slides out relative to the second unlocking slot 24, thereby realizing the unlocking of the optical fiber connector 2.

[0040] Furthermore, the depth of the first unlocking slot 23 gradually decreases from one end connected to the fixing groove 22 to the other end to form a second upslope 231, and the end of the second upslope 231 is higher than the second unlocking slot 24. When the optical fiber connector 2 is pulled out, the column 121 is pressed to make the fixing protrusion 123 slide along the second upslope 231. As the height of the second upslope 231 gradually increases, the fixing protrusion 123 causes the column 121 to deform and tilt toward the side away from the docking channel 111. When the fixing protrusion 123 slides off the end of the second upslope 231, the column 121 rebounds and causes the fixing protrusion 123 to bounce into the second unlocking slot 24. As the end of the second upslope 231 is higher than the second unlocking slot 24, the fixing protrusion 123 is confined in the second unlocking slot 24 and is difficult to retreat to the first unlocking slot 23. Therefore, by setting the second uphill slope 231, the optical fiber connector 2 can be unimpededly pulled out by pressing the column 121 once to make the fixed protrusion 123 slide to the second unlocking groove 24, without having to press the column 121 all the time to prevent the fixed protrusion 123 from retreating to the first unlocking groove 23.

[0041] Reference Figure 2 and Figure 8 , the fixed base 11 is provided with a slide groove 112 for the column 121 to slide on both sides of the docking channel 111, the slide groove 112 is connected with the docking channel 111, and the column 121 can slide in the slide groove 112 along the length direction of the column 121. The column 121 has a limiting protrusion 124 on the side away from the docking channel 111, and the fixed base 11 has a limiting groove 113 for the limiting protrusion 124 to slide, the limiting groove 113 is connected with the slide groove 112, and the limiting protrusion 124 can only slide in the limiting groove 113, and one end of the limiting groove 113 has a groove wall for the limiting protrusion 124 to abut. In the initial state and the locked state, the limiting protrusion 124 abuts against the groove wall of the limiting groove 113 to keep the column 121 relatively fixed, thereby limiting the movement of the fixed protrusion 123 in the length direction of the column 121.

[0042] Reference Figure 2 and Figure 6The pressing block 122 includes a pressing plate 125, which is connected to the two side columns 121 and can drive the two side columns 121 to slide synchronously. The control member 12 also includes a reset member 126. In one embodiment, the reset member 126 is a spring. The reset member 126 is located between the two side columns 121 and on one side of the docking channel 111. The reset member 126 is arranged parallel to the column 121. One end of the reset member 126 abuts against the pressing plate 125, and the other end of the reset member 126 abuts against the fixed base 11. In the initial state, the reset member 126 is in a compressed state, and the resilience of the reset member 126 to reset makes the limiting protrusion 124 abut against the upper groove wall of the limiting groove 113, thereby limiting the up and down movement of the fixed protrusion 123. When it is necessary to switch to the unlocked state, the pressing plate 125 is pressed downward, so that the column 121 slides axially downward, the reset member 126 is further compressed, and the fixed protrusion 123 slides irreversibly into the second unlocking slot 24. The resilience of the reset member 126 to reset makes the fixed protrusion 123 press against the upper slot wall of the second unlocking slot 24. Figure 6 direction.

[0043] Reference Figure 7 and Fig. 9 Obviously, the reset member 126 can also be located on the other side of the docking channel 111 between the two side columns 121. At this time, both ends of the column 121 are connected with a pressing plate 125. The pressing plates 125 at both ends of the column 121 are respectively a first pressing plate 127 and a second pressing plate 128. The reset member 126 is located on the side of the second pressing plate 128 away from the docking channel 111. One end of the reset member 126 abuts against the fixed base 11, and the other end of the reset member 126 abuts against the second pressing plate 128. Similarly, in the initial state, the reset member 126 is in a compressed state, and the limiting protrusion 124 abuts against the groove wall of the limiting groove 113. When switching to the unlocking state, pressing the first pressing plate 127 drives the column 121 to slide, and the column 121 synchronously drives the second pressing plate 128 to further compress the reset member 126, and the fixed protrusion 123 slides into the second unlocking slide groove 24.

[0044] Reference Figure 7 and Figure 8The fixed base 11 has a guide hole 114, and a sleeve 129 is inserted into the guide hole 114. The sleeve 129 can slide axially in the guide hole 114. One end of the sleeve 129 abuts the pressing plate 125, and the other end of the sleeve 129 penetrates the guide hole 114 and extends into the fixed base 11. The reset member 126 is sleeved on the sleeve 129, and one end of the reset member 126 abuts the pressing plate 125, and the other end of the reset member 126 abuts the outer surface of the fixed base 11 on one side of the guide hole 114. The sleeve 129 is arranged in parallel with the column 121 to play a guiding role. The sleeve 129 limits the column 121 to slide axially only along its length, and limits the shaking of the column 121 in other directions. The pressing plate 125 is pressed to make the pressing plate 125 abut against the sleeve 129 and slide. The sleeve 129 slides axially into the fixed base 11 in the pressing direction, and the reset member 126 is compressed by the pressing plate 125 .

[0045] Reference Figure 2 and Fig.10 In a preferred embodiment, the pressing block 122, the column 121, the reset member 126 and the sleeve 129 are arranged perpendicular to the fixed base 11. In addition, the pressing block 122, the column 121, the reset member 126 and the sleeve 129 can also be arranged obliquely, and accordingly, the sliding groove 112 and the limiting groove 113 adjust the angle to adapt to the oblique sliding of the column 121. For the optical fiber connector 2, the shape of the fixed protrusion 123 can be adjusted to adapt to the sliding of the fixed protrusion 123.

[0046] Reference Figure 1 and Fig.11 In addition, when the optical fiber connector 2 does not need to be inserted, the dust cap 3 can be inserted to block the docking channel 111 to prevent water and dust from entering. The outer circumference of the dust cap 3 is the same as that of the optical fiber connector 2, and is provided with a locking groove 21, a fixing groove 22, a first unlocking groove 23, and a second unlocking groove 24. The dust cap 3 can be locked by aligning the fixing protrusion 123 with the locking groove 21 and inserting it into place, and then the dust cap 3 can be unlocked by pressing the pressing plate 125 to pull out.

[0047] The implementation principle of an optical fiber connection structure in an embodiment of the present application is as follows: when inserting the optical fiber connector 2, the locking groove 21 of the optical fiber connector 2 is aligned with the fixing protrusion 123 and inserted, so that the fixing protrusion 123 slides along the first upward slope 211 into the fixing groove 22, and the end of the first upward slope 211 is higher than the fixing groove 22 to prevent the fixing protrusion 123 from retreating into the locking groove 21, and in the initial state, the reset member 126 is in a compressed state, and the limiting protrusion 124 presses against the groove wall of the limiting groove 113 to keep the fixing protrusion 123 relatively fixed, thereby achieving the locking of the optical fiber connector 2. When pulling out the optical fiber connector 2, pressing the pressing plate 125 drives the column 121 to slide axially along the pressing direction, and the fixed protrusion 123 slides along the second uphill slope 231 to the second unlocking groove 24. The end of the second uphill slope 231 is higher than the second unlocking groove 24 to prevent the fixed protrusion 123 from retreating to the first unlocking groove 23. Therefore, after the fixed protrusion 123 slides to the second unlocking groove 24, the pressure can be released, and then the fixed protrusion 123 can be made to slide out along the second unlocking groove 24 to pull out the optical fiber connector 2.

[0048] The present application also discloses an optical cable fiber distribution box, referring to Fig.12 and Fig.13 , which includes the above-mentioned optical fiber connection structure, a box body 4 and a box cover 5, wherein the box body 4 and the box cover 5 are hingedly connected. The optical fiber connection structure includes a fixed base 11 and a control member 12 connected to each other, the fixed base 11 has a docking channel 111 for inserting the optical fiber connector 2, the fixed base 11 is fixed on the base of the box body 4, and the docking channel 111 runs through the side wall of the box body 4. The control member 12 includes a column 121, a pressing block 122 and a reset member 126. The column 121 is inserted into the fixed base 11. The column 121 is used to lock the optical fiber connector 2. The pressing block 122 is arranged on the column 121 to facilitate driving the column 121. The pressing block 122 includes a pressing plate 125. The pressing plate 125 connects the columns 121 on both sides. Pressing the pressing plate 125 drives the reset member 126 and the column 121 to switch the state of the optical fiber flange 1. One end of the reset member 126 abuts the pressing plate 125, and the other end abuts the fixed base 11. The reset member 126 provides elastic force to support the fixation and sliding of the column 121. When inserting the optical fiber connector 2, the optical fiber connector 2 is directly inserted into place to achieve locking. When pulling out the optical fiber connector 2, the pressing plate 125 is pressed to drive the column 121 to slide axially to switch the optical fiber flange 1 to the unlocked state, and then the optical fiber connector 2 is pulled out. The box cover 5 is provided with a pressing hole 51, through which the pressing plate 125 can be pressed when the box cover 5 is closed. The pressing block 122 also includes a button 13, which is connected to the pressing plate 125. The button 13 penetrates the pressing hole 51 and is flush with the box cover 5. The pressing plate 125 can be pressed by pressing the button 13 from outside the box body 4.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An optical fiber connection structure, comprising an optical fiber flange (1) and an optical fiber connector (2), wherein the optical fiber connector (2) is inserted and connected to the optical fiber flange (1), characterized in that: The optical fiber flange (1) comprises a fixed base (11) and a column (121) connected to each other, the fixed base (11) having a docking channel (111) for inserting the optical fiber connector (2), the column (121) being located on at least one side of the docking channel (111), and a fixing protrusion (123) being provided on one side of the column (121) facing the docking channel (111); The optical fiber connector (2) has a locking groove (21) on its outer circumference. The locking groove (21) is arranged along the length direction of the optical fiber connector (2). The depth of the locking groove (21) from the insertion end to the other end of the optical fiber connector (2) gradually decreases to form a first upward slope (211). A fixing groove (22) is provided at the end of the first upward slope (211). The end of the first upward slope (211) is higher than the fixing groove (22). The fixing protrusion (123) slides along the first upward slope (211) and then slides into the fixing groove (22).

2. The optical fiber connection structure according to claim 1, characterized in that: The fixing groove (22) is extended with a first unlocking groove (23), one end of the first unlocking groove (23) is connected to and penetrates the fixing groove (22), the other end of the first unlocking groove (23) is connected with a second unlocking groove (24), the second unlocking groove (24) is arranged along the length direction of the optical fiber connector (2) and penetrates the insertion end of the optical fiber connector (2), the column (121) can slide along the length direction of the first unlocking groove (23), when the optical fiber connector (2) is pulled out, the column (121) is first driven to make the fixing protrusion (123) slide along the first unlocking groove (23) to the second unlocking groove (24), and then the fixing protrusion (123) slides in the second unlocking groove (24) until it completely slides out of the second unlocking groove (24).

3. The optical fiber connection structure according to claim 2, characterized in that: The depth of the first unlocking slide groove (23) gradually decreases from one end connected to the fixing groove (22) to the other end to form a second upslope (231), the end of the second upslope (231) is higher than the second unlocking slide groove (24), and the fixing protrusion (123) slides along the second upslope (231) and then slides down to the second unlocking slide groove (24).

4. The optical fiber connection structure according to claim 2, characterized in that: The fixed base (11) is provided with a slide groove (112), and the upright column (121) slides in the slide groove (112) along the length direction of the upright column (121).

5. The optical fiber connection structure according to claim 4, characterized in that: The column (121) has a limiting protrusion (124) on one side facing away from the docking channel (111); the fixed base (11) has a limiting groove (113) for the limiting protrusion (124) to slide; the limiting groove (113) is connected to the sliding groove (112); the limiting protrusion (124) only slides in the limiting groove (113); the limiting protrusion (124) abuts against the groove wall of the limiting groove (113) so that the column (121) remains relatively fixed.

6. The optical fiber connection structure according to claim 2, characterized in that: A pressing plate (125) is connected to the column (121), and pressing the pressing plate (125) causes the column (121) to slide along the first unlocking slide groove (23) into the second unlocking slide groove (24).

7. The optical fiber connection structure according to claim 6, characterized in that: A reset member (126) is provided on the fixed base (11), one end of the reset member (126) abuts against the pressing plate (125), and the other end of the reset member (126) abuts against the fixed base (11).

8. The optical fiber connection structure according to claim 7, characterized in that: A sleeve (129) is passed through the fixed base (11), the reset member (126) is sleeved on the sleeve (129), one end of the sleeve (129) is connected to the pressing plate (125), the other end of the sleeve (129) is passed through the fixed base (11), and the sleeve (129) can slide along its axial direction.

9. An optical cable fiber distribution box, characterized in that: It comprises a box body (4) and a box cover (5), wherein the box body (4) has an optical fiber connection structure as described in any one of claims 1 to 8, wherein the box cover (5) has a pressing hole (51), and the pressing plate (125) is pressed through the pressing hole (51).

10. The optical fiber flange (1) structure according to claim 9, characterized in that: The pressing plate (125) is provided with a button (13), the button (13) abuts against the pressing plate (125), and the button (13) protrudes from the pressing hole (51).

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