A multi-level protection structure for optical splitter interface

Abstract

The present invention discloses a multi-stage protection structure for an optical splitter interface, including a splitter housing, a plurality of connector wires, and an interface housing arranged on the splitter housing, and also including a plurality of groups of protection components, a plurality of groups of limit components, and a plurality of groups of sealing components, all of which are arranged on the interface housing. The present invention sets the mutual cooperation among the splitter housing, the connector wire, the interface housing, the protection component, the limit component, the sealing component, the gear transmission group, and the adjustment mechanism. The protection component is driven to open during the process of the limit component moving and opening, and then the adjustment mechanism is cooperated to make the sealing component in the interface housing open to facilitate the installation of the connector wire. After the connector wire is installed, the limit component is reset and moved to fix the connector wire, and the adjustment mechanism drives the sealing component to reset and seal the connector wire, which can effectively improve the firmness and sealing of the connector wire during installation.

Description

Technical Field

[0001] The invention relates to the technical field of optical splitters, and in particular to a multi-level protection structure for an optical splitter interface. Background Art

[0002] A spectrometer is a passive device, also known as an optical splitter. It does not require external energy, as long as there is input light. The spectrometer consists of an incident and an exit slit, a reflector, and a dispersion element. Its function is to separate the required resonant absorption line. The key component of the spectrometer is the dispersion element. Now commercial instruments all use gratings.

[0003] For example, the Chinese utility model patent with application number: 202021415600.1, entitled Dustproof Planar Waveguide Optical Splitter, discloses a dustproof planar waveguide optical splitter, including an optical splitter housing and an interface. A row of interfaces is provided at the front end of the optical splitter housing, and a plate body is slidably connected to the optical splitter housing, a protective plate is hinged at the front end of the plate body, a torsion spring is connected between the protective plate and the plate body, a positioning mechanism is connected to the plate body, and adjustment mechanisms are respectively connected on both sides of the optical splitter housing, and a suction cup is installed on the adjustment mechanism. The interface is shielded or opened by a flippable protective plate, thereby preventing external dirt from penetrating into the interface. The plate body is positioned on the optical splitter housing by the positioning mechanism. The suction cup is moved by the adjusting mechanism, and the optical splitter is adsorbed and positioned in a fixed position by the suction cup.

[0004] The shortcomings of the prior art are that a protective plate is usually provided at the interface of the optical splitter to protect the interface when not in use. For example, the protective plate in the above-mentioned patent can only seal and protect the interface that is not plugged in, but does not protect the interface of the optical splitter when it is plugged in. If the plugged in interface is damp, it is easy to be damaged, which has certain shortcomings. Summary of the invention

[0005] The object of the present invention is to provide a multi-level protection structure for an optical splitter interface to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-level protection structure for an optical splitter interface, comprising a splitter housing, a plurality of connector wires and an interface housing arranged on the splitter housing, and also comprising a plurality of groups of protection components, a plurality of groups of limit components and a plurality of groups of sealing components, all of which are arranged on the interface housing; during installation, each of the limit components has the following two working positions: in the first working position, during the movement of the limit component, the corresponding protection component is driven to open by a gear transmission group, and then the corresponding sealing component is controlled to open by an adjustment mechanism, so that the connector wire enters the interface housing and is plugged into the hole in the splitter housing; in the second working position, the limit component is reset to limit the connector wire, and the stretching of the sealing component is released by the adjustment mechanism, and the sealing component rebounds to wrap and seal the connector.

[0007] As a further description of the above technical solution:

[0008] The limiting assembly includes two wedge-shaped rods slidably connected in the interface housing; two vertical rods are slidably connected in the interface housing, and both vertical rods are connected to the corresponding wedge-shaped rods through a rotating plate. The same baffle is provided on the two vertical rods, and a handle and a limiting rod are fixedly connected to the baffle.

[0009] As a further description of the above technical solution:

[0010] The protection assembly includes two protection plates slidably connected in the interface housing.

[0011] As a further description of the above technical solution:

[0012] The gear transmission group includes two transmission rods rotatably connected in the interface housing, one of the transmission rods is fixedly connected to a driving gear, and the other transmission rod is fixedly connected to a steering gear and a passive gear, and the driving gear and the steering gear are meshed with each other; a first tooth plate is fixedly connected to the wedge rod, and the first tooth plate is meshed with the corresponding driving gear; a second tooth plate is fixedly connected to the protective plate, and the second tooth plate is meshed with the corresponding passive gear.

[0013] As a further description of the above technical solution:

[0014] The sealing assembly includes a sealing ring fixed in the interface housing.

[0015] As a further description of the above technical solution:

[0016] The adjustment mechanism includes an incomplete gear ring rotatably connected to the interface housing, and a track groove is provided on the incomplete gear ring; a fixed ring is also fixedly connected to the interface housing, and a plurality of sliding rods are slidably connected to the fixed ring, each sliding rod is fixedly connected to a guide rod, and each guide rod is slidably connected to a corresponding track groove, and the sliding rods are respectively fixedly connected to sealing rings, and a third tooth plate is connected to the interface housing via a connecting spring, the third tooth plate is meshed with the incomplete gear ring, and the third tooth plate is connected to the corresponding wedge rod via a connecting piece.

[0017] As a further description of the above technical solution:

[0018] The connecting member is an L-shaped rod fixedly connected to the wedge-shaped rod, and a sliding groove is provided on the third tooth plate, and one end of the L-shaped rod is slidably connected to the sliding groove.

[0019] As a further description of the above technical solution:

[0020] The splitter housing is fixedly connected with a side plate, the side plate is provided with a plurality of limiting holes and positioning grooves, and the limiting rods are engaged with the corresponding limiting holes.

[0021] As a further description of the above technical solution:

[0022] The joint housing is provided with an auxiliary component for driving multiple limit components to unlock synchronously, and the auxiliary component includes two movable plates and two auxiliary rods slidably connected to the side plates, and the auxiliary rods are slidably connected to the corresponding movable plates; each of the vertical rods is fixedly connected with a disc, and an abutment spring is fixedly connected between the disc and the movable plate; the two vertical rods are also fixedly connected with the same support seat, and the support seat is fixedly connected with a limit block, and the limit block is snap-fitted with the corresponding positioning groove.

[0023] As a further description of the above technical solution:

[0024] A plurality of U-shaped frames are fixedly connected to the support seat, and each of the limit rods is slidably connected to the corresponding U-shaped frame.

[0025] In the above technical solution, the multi-level protection structure for an optical splitter interface provided by the present invention has the following beneficial effects:

[0026] The present invention sets mutual cooperation among the splitter housing, the connector line, the interface housing, the protection component, the limit component, the sealing component, the gear transmission group and the adjustment mechanism. The protection component is driven to open during the movement and opening of the limit component, and then the sealing component in the interface housing is opened through the cooperation of the adjustment mechanism to facilitate the installation of the connector line. After the connector line is installed, the limit component is reset and moved to fix the connector line, and the adjustment mechanism drives the sealing component to reset and seal the connector line, which can effectively improve the firmness and sealing of the connector line during installation, and has a good use effect.

[0027] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0028] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0030] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0031] Figure 2 Another perspective view of the overall structure provided by the embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the structural connection between the splitter housing and the interface housing provided in an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the connection between the adjustment mechanism and the sealing assembly structure provided by an embodiment of the present invention;

[0034] Figure 5 An exploded view of the internal structure of the interface housing provided by an embodiment of the present invention;

[0035] Figure 6 A schematic diagram of the auxiliary component structure provided by an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the connector cable structure provided by an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of a partial structure of a limit assembly provided in an embodiment of the present invention;

[0038] Fig. 9 for Figure 5 The enlarged view of point A in the middle;

[0039] Fig.10 for Figure 6 Enlarged view of point B in the middle.

[0040] Description of reference numerals:

[0041] 1. Splitter housing; 11. Connector wire; 12. Interface housing; 21. Wedge rod; 22. Vertical rod; 23. Rotating plate; 24. Baffle; 25. Handle; 26. Limit rod; 3. Protective plate; 41. Transmission rod; 42. Active gear; 43. Passive gear; 44. Steering gear; 51. First tooth plate; 52. Second tooth plate; 6. Sealing ring; 71. Incomplete gear ring; 72. Track groove; 73. Fixed ring; 74. Slide rod; 75. Guide rod; 76. Connecting spring; 77. Third tooth plate; 81. L-shaped rod; 82. Slide groove; 91. Side plate; 92. Limit hole; 93. Positioning groove; 101. Moving plate; 102. Auxiliary rod; 103. Disc; 104. Abutment spring; 105. Support seat; 106. Limit block; 107. U-shaped frame. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0043] See also Figure 1-10 The present embodiment provides a multi-stage protection structure for an optical splitter interface, comprising a splitter housing 1, a plurality of connector wires 11, and an interface housing 12 disposed on the splitter housing 1. The splitter housing 1, the interface housing 12, and the connector wires 11 are existing devices, and the connection between the three is also an existing connection method. The connection relationship and function between the three are not described in detail here. The configuration of the connector wires 11 can be found in the attached manual. Figure 7, and also includes multiple groups of protective components, multiple groups of limiting components and multiple groups of sealing components, which are all arranged on the interface housing 12; during installation, each limiting component has the following two positions: in the first position, during the movement of the limiting component, the corresponding protective component is driven to open by the gear transmission group, and then the corresponding sealing component is controlled to open by the adjustment mechanism, so that the connector line 11 enters the interface housing 12 and is plugged into the hole in the splitter housing 1, and the protective component is driven to open by the movement of the limiting component so that the interface on the interface housing 12 is exposed, and the sealing component is driven to open by the adjustment mechanism, so that the wiring head can smoothly enter the interface housing 12 Perform the plugging work; at the second workstation, the limit component is reset to limit the connector line 11, and the stretching of the sealing component is released through the adjusting mechanism, and the sealing component rebounds to wrap and seal the connector, and the connector line 11 entering the interface housing 12 can be clamped and limited by resetting the limit component, thereby improving the firmness of the connector line 11 when connected, and during the resetting stroke of the limit component, the stretching operation of the sealing component can be released by synchronously resetting the adjustment mechanism, so that the sealing component is reset to wrap and seal the entering connector line 11, which can improve the sealing performance of the optical splitter when connected, thereby providing protection for the interface of the optical splitter in different states.

[0044] In an embodiment further provided by the present invention, the limit assembly includes two wedge-shaped rods 21 slidably connected to the interface housing 12; two vertical rods 22 are slidably connected to the interface housing 12, and the two vertical rods 22 are connected to the corresponding wedge-shaped rods 21 through a rotating plate 23. The same baffle 24 is provided on the two vertical rods 22, and the vertical rods 22 and the baffle 24 slide with each other, and the two slide relatively elastically. The specific connection method can be found in the appendix of the specification. Figure 8 The baffle plate 24 is fixedly connected with a handle 25 and a limit rod 26. The interface housing 12 is provided with grooves for the movement of two wedge-shaped rods 21, two rotating plates 23 and two vertical rods 22. The specific arrangement of the wedge-shaped rods 21, the rotating plates 23 and the vertical rods 22 can be found in the appendix of the manual. Figure 5 By providing a handle 25 on the baffle 24, it is convenient for humans to pull the baffle 24 to move.

[0045] Furthermore, the protective assembly includes two protective plates 3 slidably connected in the interface housing 12. A groove for the protective plates 3 to move is provided in the interface housing 12. The protective plates 3 are arranged on a side of the interface housing 12 away from the splitter housing 1. The protective plates 3 can provide necessary protection for the interface of the splitter housing 1 and the channel inside the interface housing 12 when the connector line 11 is not connected.

[0046] Furthermore, the gear transmission group includes two transmission rods 41 rotatably connected to the interface housing 12, wherein a driving gear 42 is fixedly connected to one of the transmission rods 41, wherein a steering gear 44 and a passive gear 43 are fixedly connected to the other transmission rod 41, and the driving gear 42 and the steering gear 44 are meshed with each other; a first tooth plate 51 is fixedly connected to the wedge rod 21, and the first tooth plate 51 is meshed with the corresponding driving gear 42, and a second tooth plate 52 is fixedly connected to the protective plate 3, and the second tooth plate 52 is meshed with the corresponding passive gear 43, wherein the cross-sectional radius of the driving gear 42 is greater than the cross-sectional radius of the steering gear 44, and the rotation The cross-sectional radius of the steering gear 44 is smaller than that of the passive gear 43. The movement of the first tooth plate 51 can drive the active tooth plate to rotate. The rotation of the active gear 42 can engage the steering gear 44 to rotate synchronously. The rotation of the steering gear 44 can drive the passive gear 43 to rotate synchronously through the transmission rod 41 connected thereto. The passive gear 43 can drive the second tooth plate 52 engaged therewith to move, thereby realizing the opposite opening of the protective plates 3 on both sides. In this process, when the first tooth plate 51 moves a certain distance, the second tooth plate 52 will move under the joint action of the active gear 42, the steering gear 44 and the passive gear 43, and the moving distance thereof is much greater than the moving distance of the first tooth plate 51.

[0047] In an embodiment further provided by the present invention, the sealing assembly includes a sealing ring 6 fixed in the interface housing 12. The sealing ring 6 can be set according to the shape of the connector line 11. When the sealing ring 6 is in a free state, its inner ring can wrap the connector line 11, and the two sides of the sealing ring 6 are respectively fixedly connected to the inner wall of the interface housing 12.

[0048] In the embodiment provided by the present invention, the adjustment mechanism includes an incomplete gear ring 71 rotatably connected to the interface housing 12, and a track groove 72 is provided on the incomplete gear ring 71; a fixing ring 73 is also fixedly connected to the interface housing 12, and a plurality of slide bars 74 are slidably connected to the fixing ring 73, and the plurality of slide bars 74 are evenly distributed on the fixing ring 73 in a circular array, and each slide bar 74 is fixedly connected to a guide rod 75, and each guide rod 75 is slidably connected to the corresponding track groove 72. The shape of the track groove 72 can be referred to in the appendix of the specification. Figure 4The sliding rods 74 are fixedly connected to the sealing rings respectively, and a third tooth plate 77 is connected to the interface housing 12 through a connecting spring 76. The third tooth plate 77 meshes with the incomplete gear ring 71, and the third tooth plate 77 is connected to the corresponding wedge rod 21 through a connecting piece. The movement of the third tooth plate 77 can mesh with the incomplete gear ring 71 to rotate, and drive the connecting spring 76 connected between the third tooth plate 77 and the interface housing 12 to deform. When the incomplete gear ring 71 rotates with the movement of the third tooth plate 77, the multiple sliding rods 74 in the fixed ring 73 are driven to move synchronously in the opposite direction through the cooperation of the track groove 72 and the guide rod 75, so that the sealing ring 6 can be stretched. When the third tooth plate 77 is reset under the restoring force of the connecting spring 76, the third gear will drive the incomplete gear to rotate in the opposite direction. With the reverse rotation of the incomplete gear and again under the cooperation of the guide rod 75 and the track groove 72, the stretching force on the sealing ring 6 can be released, so that the sealing ring 6 is reset to wrap and seal one end of the joint line 11.

[0049] Specifically, the connecting member is an L-shaped rod 81 fixedly connected to the wedge rod 21, and a slide groove 82 is provided on the third tooth plate 77. One end of the L-shaped rod 81 is slidably connected in the slide groove 82. The length of the slide groove 82 should be greater than the length of the wedge rod 21 moving to drive the protective assembly to open, so that after the wedge rod 21 moves to drive the protective assembly to open, one end of the L-shaped rod 81 moves from one side of the slide groove 82 to the other side of the slide groove 82. At this time, when the wedge rod 21 continues to drive the L-shaped rod 81 to move, the L-shaped rod 81 can abut the inner wall of the slide groove 82 and drive the third tooth plate 77 to move synchronously.

[0050] In the solution further provided by the present invention, a side panel 91 is fixedly connected to the splitter housing 1, and a plurality of limiting holes 92 and positioning grooves 93 are provided on the side panel 91. The limiting rod 26 is snap-fitted with the corresponding limiting holes 92. By setting the limiting holes 92 on the side panel 91, the baffle 24 can be fixed when the limiting rod 26 on the baffle 24 is snapped into the limiting holes 92.

[0051] In the solution further provided by the present invention, an auxiliary component for driving multiple limit components to be unlocked synchronously is arranged on the joint housing, and the auxiliary component includes two movable plates 101 and two auxiliary rods 102 which are slidably connected to the side plates 91, and the auxiliary rods 102 are slidably connected to the corresponding movable plates 101, and a groove for the auxiliary rods 102 to move is provided on the movable plate 101, and the two auxiliary rods 102 are respectively arranged at both ends of one side of the baffle 24, and the movable plate 101 slides vertically on the baffle 24; each vertical rod 22 is fixedly connected to the baffle 24; A disc 103 is connected, and an abutment spring 104 is fixedly connected between the disc 103 and the movable plate 101. The two vertical rods 22 are also fixedly connected to the same support seat 105. A limiting block 106 is fixedly connected to the support seat 105, and the limiting block 106 is engaged with the corresponding positioning groove 93. When the elastic force of the abutment spring 104 drives the disc 103 away from the movable plate 101, the support seat 105 can be fixed by engaging the limiting block 106 arranged on the support seat 105 with the positioning groove 93 on the side plate 91.

[0052] In the solution further provided by the present invention, a plurality of U-shaped frames 107 are fixedly connected to the support seat 105, and each limit rod 26 is slidably connected in the corresponding U-shaped frame 107. A plurality of U-shaped frames 107 are fixedly connected to the support seat 105, and each limit rod 26 is slidably connected in the corresponding U-shaped frame 107. When the support seat 105 moves upward, it is necessary to first pull the support seat 105 to move toward the outside of the interface housing 12, and when the support seat 105 moves, it will drive the plurality of baffles 24 to move synchronously through the U-shaped frame 107 until the limit rod 26 on the baffle 24 and the limit block 106 on the support seat 105 are separated from the limit groove. At this time, pulling the support seat 105 upward can drive the plurality of baffles 24 to move synchronously to unlock and adjust, which is simple and convenient to operate.

[0053] Working principle: When working, the baffle 24 is pulled outward by the handle 25. When the baffle 24 moves horizontally, the vertical rod 22 is affected by the interface housing 12 and does not move with the horizontal movement of the baffle 24 until the limiting rod 26 on the baffle 24 is separated from the limiting hole 92 on the side plate 91. Then, the handle 25 is lifted upward to drive the baffle 24 to move upward. The upward movement of the baffle 24 drives the vertical rod 22 to move upward synchronously. When the vertical rod 22 moves upward, it drives the wedge rods 21 on both sides to move away from each other through the rotating plate 23. When the wedge rod 21 moves away, it drives the first tooth plate 51 to move synchronously. The movement of the first toothed plate 51 will mesh with the driving gear 42 in contact with it and cause it to rotate. The driving gear 42 rotates to mesh with the driven gear 43 and rotates synchronously. The rotation of the driven gear 43 can drive the transmission rod 41 fixedly connected thereto to rotate synchronously. At this time, the driven gear 43 connected to the other end of the transmission rod 41 will rotate synchronously. The rotation of the driven gear 43 can drive the second toothed plate 52 to drive the protective plate 3 connected thereto to move quickly into the interior of the interface housing 12, until the protective plate 3 is completely retracted into the interface housing 12, and the socket channel in the interface housing 12 is exposed.

[0054] At this time, the first tooth plate 51 on the wedge rod 21 is separated from the driving gear 42 on the transmission rod 41, and the wedge rod 21 continues to move. At this time, the L-shaped rod 81 connected to the wedge rod 21 will move from one side of the slide groove 82 in the third tooth plate 77 to the other side, and move synchronously against the third tooth plate 77. The movement of the third tooth plate 77 will engage the incomplete gear ring 71 in contact with it to rotate. When the incomplete gear ring 71 rotates, it will drive the slide bar 74 on the fixed ring 73 to move through the cooperation of the track groove 72 and the guide rod 75. The movement of the slide bar 74 will stretch the sealing ring 6 in the interface channel, and when the third tooth plate 77 moves, it will stretch the connecting spring 76 to deform the connecting spring 76. When the sealing ring 6 is expanded, the connector line 11 can be inserted into the interface. The plugging is performed in the housing 12, and after the plugging is completed, the baffle 24 is moved in the reverse direction. The baffle 24 moves downward and can drive the wedge rods 21 on both sides to approach each other through the vertical rod 22 and the rotating plate 23. The wedge rods 21 on both sides approach each other, and the connector line 11 can be clamped and fixed. The wedge rod 21 will drive the L-shaped rod 81 to move synchronously while resetting. The movement of the L-shaped rod 81 can release the tension on the third tooth plate 77. At this time, the restoring force of the connecting spring 76 connected to one side of the third tooth plate 77 drives the third tooth plate 77 to reset. The reset of the third tooth plate 77 drives the incomplete gear ring 71 to reset. After the incomplete gear ring 71 is rotated and reset, the tension on the sealing ring can be released through the cooperation of the track groove 72 and the sliding rod 74. The reset of the sealing ring can wrap and seal the connector line 11.

[0055] When it is necessary to unlock and move multiple baffles 24 at the same time, first pull the support seat 105 to move. The movement of the support seat 105 will drive the multiple baffles 24 to move synchronously through the U-shaped frame 107 set thereon. The multiple baffles 24 move synchronously so that the limit rods 26 set thereon are separated from the limit holes 92 on the side panels 91 until the limit blocks 106 set on the support seat 105 are separated from the positioning grooves 93 on the side panels 91. At this time, moving the support seat 105 up and down can drive the baffles 24 to move synchronously, which is more convenient to operate.

[0056] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage protection structure for an optical splitter interface, comprising a splitter housing (1), a plurality of connector wires (11), and an interface housing (12) arranged on the splitter housing (1), characterized in that: It also includes multiple sets of protection components, multiple sets of limit components and multiple sets of sealing components, all of which are arranged on the interface housing (12); During installation, each of the limiter components has the following two positions: At the first station, during the movement of the limit assembly, the corresponding protection assembly is driven to open by the gear transmission group, and then the corresponding sealing assembly is controlled to open by the adjustment mechanism, so that the connector line (11) enters the interface housing (12) and is plugged into the hole in the splitter housing (1); At the second station, the limiting component resets the joint wire (11) to limit the position, and releases the stretching of the sealing component through the adjustment mechanism, and the sealing component rebounds to wrap and seal the joint wire; The sealing assembly comprises a sealing ring (6) fixed in the interface housing (12); The adjustment mechanism comprises an incomplete gear ring (71) rotatably connected to the interface housing (12), and a track groove (72) is provided on the incomplete gear ring (71); The interface housing (12) is also fixedly connected with a fixing ring (73), and a plurality of sliding rods (74) are slidably connected to the fixing ring (73), and each sliding rod (74) is fixedly connected with a guide rod (75), and each guide rod (75) is slidably connected to a corresponding track groove (72), and the sliding rods (74) are respectively fixedly connected to the sealing ring, and the interface housing (12) is connected with a third tooth plate (77) through a connecting spring (76), and the third tooth plate (77) is meshed with the incomplete gear ring (71), and the third tooth plate (77) is connected to the corresponding wedge rod (21) through a connecting piece; The connecting member is an L-shaped rod (81) fixedly connected to the wedge-shaped rod (21); a sliding groove (82) is provided on the third tooth plate (77); one end of the L-shaped rod (81) is slidably connected in the sliding groove (82).

2. A multi-level protection structure for an optical splitter interface according to claim 1, characterized in that: The limiting assembly comprises two wedge-shaped rods (21) slidably connected in the interface housing (12); Two vertical rods (22) are slidably connected in the interface housing (12), and the two vertical rods (22) are connected to corresponding wedge-shaped rods (21) through a rotating plate (23). The two vertical rods (22) are provided with a same baffle (24), and the baffle (24) is fixedly connected with a handle (25) and a limit rod (26).

3. A multi-level protection structure for an optical splitter interface according to claim 2, characterized in that: The protection assembly comprises two protection plates (3) slidably connected in the interface housing (12).

4. A multi-level protection structure for an optical splitter interface according to claim 3, characterized in that: The gear transmission group comprises two transmission rods (41) rotatably connected in the interface housing (12), one of the transmission rods (41) being fixedly connected to a driving gear (42), the other of the transmission rods (41) being fixedly connected to a steering gear (44) and a driven gear (43), the driving gear (42) and the steering gear (44) being meshed with each other; A first tooth plate (51) is fixedly connected to the wedge rod (21), and the first tooth plate (51) is meshed with a corresponding driving gear (42). A second tooth plate (52) is fixedly connected to the protection plate (3), and the second tooth plate (52) is meshed with a corresponding driven gear (43).

5. A multi-level protection structure for an optical splitter interface according to claim 2, characterized in that: The splitter housing (1) is fixedly connected to a side plate (91), the side plate (91) is provided with a plurality of limiting holes (92) and positioning grooves (93), and the limiting rod (26) is snap-fitted with the corresponding limiting holes (92).

6. A multi-level protection structure for an optical splitter interface according to claim 5, characterized in that: The interface housing is provided with an auxiliary component for driving a plurality of limit components to be unlocked synchronously, the auxiliary component comprising two movable plates (101) slidably connected to the side plates (91) and two auxiliary rods (102), the auxiliary rods (102) being slidably connected to the corresponding movable plates (101); A disc (103) is fixedly connected to each of the vertical rods (22), and an abutment spring (104) is fixedly connected between the disc (103) and the movable plate (101). The two vertical rods (22) are also fixedly connected to the same support seat (105), and a limit block (106) is fixedly connected to the support seat (105), and the limit block (106) is snap-fitted with the corresponding positioning groove (93).

7. A multi-level protection structure for an optical splitter interface according to claim 6, characterized in that: A plurality of U-shaped frames (107) are fixedly connected to the support seat (105), and each of the limiting rods (26) is slidably connected in a corresponding U-shaped frame (107).

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