Optical matrix switch device

Abstract

The invention belongs to the technical field of optical matrix switches, and discloses an optical matrix switch device, which comprises a shell, an auxiliary mechanism, a protection mechanism, two limiting mechanisms and a linkage mechanism, and is characterized in that the auxiliary mechanism comprises an auxiliary plate and a sealing frame, the auxiliary plate is fixedly connected with the sealing frame, the sealing frame is arranged in a maintenance groove in a penetrating manner, and the protection mechanism is located on the auxiliary plate; the protection mechanism is arranged in the shell and used for preventing external dust from entering the shell, the two limiting mechanisms are arranged on the two opposite side walls of the shell correspondingly, the limiting mechanisms can be selectively fixed to the side walls of the shell, the linkage mechanism is connected between the protection mechanism and the limiting mechanisms, and the linkage mechanism and the limiting mechanisms are matched with each other so that the protection mechanism can be selectively limited. According to the optical matrix switch device provided by the invention, the shell can be quickly disassembled, so that a worker can conveniently and quickly overhaul components in the optical matrix switch device, the overhaul difficulty of the worker is reduced, and the use performance of the optical matrix switch device is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of optical matrix switches, and in particular to an optical matrix switch device. Background Art

[0002] An optical matrix switch device is usually an optical path control device. The optical matrix switch device plays the role of controlling and converting the optical path. The optical matrix switch device is usually a core technology of an intelligent optical cross-connect device and a reconfigurable optical add-drop multiplexer. The optical matrix switch device is the basis for building an automatic switching optical network and can provide fast and flexible signal routing options.

[0003] The housing of the existing optical matrix switch device is usually integrated, and the control panel is installed on the side of the housing. However, when inspecting and repairing the components inside the switching device of the optical matrix switch device, it is usually necessary to first disassemble the control panel, and then disassemble the internal components, and then take out the internal components for inspection and repair. Since the housing of the existing optical matrix switch device cannot be disassembled, it is difficult to inspect and repair its internal components, which in turn affects the subsequent use performance of the optical matrix switch device.

[0004] Therefore, there is an urgent need for an optical matrix switch device to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide an optical matrix switch device, which can solve the problem that the shell cannot be disassembled, resulting in difficulty in repairing its internal components and affecting the performance of the optical matrix switch device.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] An optical matrix switch device comprises a housing and a component arranged inside the housing, wherein a maintenance slot is provided on the top of the housing, and the optical matrix switch device further comprises:

[0008] An auxiliary mechanism, comprising an auxiliary plate and a sealing frame, wherein the auxiliary plate is fixedly connected to the sealing frame, and the sealing frame is inserted into the inspection slot;

[0009] A protection mechanism, located on the auxiliary plate, and used to prevent external dust from entering the interior of the housing;

[0010] Two limiting mechanisms, the two limiting mechanisms are respectively located on two opposite side walls of the shell, and the limiting mechanisms can be selectively fixed to the side walls of the shell;

[0011] A linkage mechanism is connected between the protection mechanism and the limiting mechanism.

[0012] As a preferred technical solution for the optical matrix switch device, the auxiliary plate is provided with an opening, the protective mechanism includes a protective frame, a protective net and a protective cover, the protective frame has a vent, the vent is opposite to the opening, the protective net is connected to the inner wall of the vent, the protective cover is connected to the protective frame, and the protective cover can be selectively covered on the vent.

[0013] As a preferred technical solution for the optical matrix switch device, the limiting mechanism includes a limiting plate and a latch assembly, the limiting plate is in contact with the side wall of the shell, the auxiliary mechanism also includes a positioning plate, the positioning plate is connected to the auxiliary plate, and the limiting plate and the positioning plate are plugged into each other, the latch assembly is connected to the limiting plate, and the latch assembly has a locked state and an unlocked state. When the latch assembly is in the locked state, the limiting plate is fixed to the side wall of the shell, and when the latch assembly is in the unlocked state, the limiting plate can be away from the side wall of the shell and the positioning plate.

[0014] As a preferred technical solution for the optical matrix switch device, the latch assembly includes a fixing frame, a latch and a locking switch, the fixing frame is placed on the limit plate, the fixing frame includes a first channel and a second channel connected to each other, the limit plate is provided with a limit hole, the limit hole is opposite to the first channel, the latch is movably arranged in the first channel and the limit hole, and can be selectively fixedly connected to the shell, the latch is provided with a positioning groove, when the latch is fixedly connected to the shell, the positioning groove is opposite to the second channel, the locking switch has a positioning pin, and the positioning pin can selectively pass through the second channel and be inserted into the positioning groove.

[0015] As an optimal technical solution for the optical matrix switch device, the locking switch includes a fixed seat, a mounting cylinder, a pulling member, a limiting ring and an elastic member, the fixed seat is fixed to the fixed frame, the mounting cylinder is located in the fixed seat, a retaining ring is provided on the top of the mounting cylinder, the pulling member is movably arranged in the mounting cylinder and opposite to the second channel, the positioning pin is connected to the pulling member, the limiting ring is sleeved on the pulling member and can move along the mounting cylinder with the pulling member, and the elastic member abuts between the retaining ring and the limiting ring.

[0016] As a preferred technical solution for the optical matrix switch device, the locking switch also includes an annular member and a mounting rod, the annular member is arranged at the bottom of the limiting ring, the side wall of the annular member is provided with a through hole, the outer wall of the pulling member is provided with an annular groove, and the mounting rod passes through the through hole and stays in the annular groove.

[0017] As a preferred technical solution for the optical matrix switch device, the limiting mechanism includes two limiting plates, which are spaced apart on the side walls of the shell, and each limiting plate is provided with a corresponding latch assembly. The linkage mechanism includes a connecting plate, a connecting rod and an abutment plate, the connecting plate is connected between the two limiting plates, the connecting rod connects the two pulling members, and the abutment plate is abutted between the connecting plate and the protective frame.

[0018] As a preferred technical solution for the optical matrix switch device, the protective cover includes a fixed plate and a sliding plate, the fixed plate is fixedly connected to the protective frame, the fixed plate is provided with a first guide portion, the sliding plate is provided with a second guide portion, one of the first guide portion and the second guide portion is a guide groove, and the other is a guide bar, and the sliding plate can selectively cover the opening.

[0019] As a preferred technical solution for the optical matrix switch device, a first magnetic part is provided on the first guide portion, a second magnetic part is provided on the second guide portion, and a third magnetic part is provided on the protective frame. When the sliding plate overlaps with the fixed plate, the first magnetic part and the second magnetic part are magnetically attracted to each other. When the sliding plate covers the opening, the first magnetic part and the third magnetic part are magnetically attracted to each other.

[0020] As a preferred technical solution of the optical matrix switch device, the protective cover further includes a handle, and the handle is arranged on the sliding plate.

[0021] The beneficial effects of the present invention are:

[0022] The optical matrix switch device provided by the present invention connects the sealing frame with the inspection groove of the shell through insertion, and connects the auxiliary plate with the sealing frame, so that the auxiliary plate can be selectively covered on the top of the shell to seal the shell as needed, which is convenient for inspecting the components inside the shell and simplifies the inspection of the components. By setting a limit mechanism and a linkage mechanism, the protective mechanism can be limited, so that the use flexibility of the optical matrix switch device is improved. When it is necessary to inspect the components inside the shell, the protective mechanism can be removed by operating the limit mechanism, and then the auxiliary plate is taken out to remove the sealing frame from the inspection groove, so that the components inside the shell can be inspected. The whole process is simple to operate, and the shell does not need to be disassembled. The components inside the shell can be quickly and accurately inspected, so that the subsequent use of the optical matrix switch device is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the optical matrix switch device provided by the present invention;

[0024] Figure 2 is a cross-sectional view from a first viewing angle of the optical matrix switch device provided by the present invention;

[0025] Figure 3 yes Figure 2 A magnified view of part A in FIG.

[0026] Figure 4 is a cross-sectional view from a second viewing angle of the optical matrix switch device provided by the present invention;

[0027] Figure 5 is a cross-sectional view from a third viewing angle of the optical matrix switch device provided by the present invention;

[0028] Figure 6 It is a partial structural schematic diagram of a locking switch of the optical matrix switch device provided by the present invention;

[0029] Figure 7 It is a partial structural schematic diagram of the protection mechanism of the optical matrix switch device provided by the present invention.

[0030] In the figure:

[0031] 1. Shell; 2. Auxiliary mechanism; 21. Auxiliary plate; 22. Sealing frame; 23. Positioning plate; 3. Protective mechanism; 31. Protective frame; 32. Protective net; 33. Protective cover; 331. Fixed plate; 3311. First magnetic member; 332. Sliding plate; 3321. Second magnetic member; 333. Handle; 4. Limiting mechanism; 41. Limiting plate; 411. Protrusion; 42. Latch assembly; 421. Fixed frame; 422. Latch ; 423, locking switch; 4231, positioning pin; 4232, fixing seat; 4233, mounting tube; 4234, pulling member; 4235, limiting ring; 4236, elastic member; 4237, annular member; 4238, mounting rod; 5, linkage mechanism; 51, connecting plate; 52, connecting rod; 53, abutment plate; 6, control panel; 7, first network port; 8, second network port; 9, output port; 10, button; 11, indicator light. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] like Figures 1 to 5As shown, this embodiment provides an optical matrix switch device, including a housing 1 and components arranged inside the housing 1, an inspection slot is arranged on the top of the housing 1, and the optical matrix switch device also includes an auxiliary mechanism 2, a protective mechanism 3, two limit mechanisms 4 and a linkage mechanism 5, wherein the auxiliary mechanism 2 includes an auxiliary plate 21 and a sealing frame 22, the auxiliary plate 21 is fixedly connected to the sealing frame 22, and the sealing frame 22 is inserted in the inspection slot, so that the auxiliary plate 21 can be selectively covered on the top of the housing 1 to seal the top of the housing 1 to protect the components inside the housing 1. At the same time, when it is necessary to inspect the components inside the housing 1, the staff only needs to take the auxiliary plate 21 and remove the sealing frame 22 from the inspection slot to repair the components inside the housing 1. The inspection process is simple and convenient for the staff to operate. The protective mechanism 3 is arranged on the auxiliary plate 21, and the protective mechanism 3 can prevent external dust from entering the interior of the housing 1, and at the same time can ensure the heat dissipation of the components inside the housing 1. The two limiting mechanisms 4 are respectively located on two opposite side walls of the shell 1, and the limiting mechanisms 4 can be selectively fixed to the side walls of the shell 1. The linkage mechanism 5 is connected between the protection mechanism 3 and the limiting mechanism 4. The setting of the limiting mechanism 4 and the linkage mechanism 5 can limit the protection mechanism 3, thereby improving the flexibility of the use of the optical matrix switch device.

[0037] The optical matrix switch device provided in this embodiment is connected by inserting the sealing frame 22 with the inspection groove of the housing 1, and the auxiliary plate 21 is connected with the sealing frame 22, so that the auxiliary plate 21 can be selectively covered on the top of the housing 1 to seal the housing 1 as needed, which is convenient for inspecting the components inside the housing 1 and simplifies the inspection of the components. By setting the limiting mechanism 4 and the linkage mechanism 5, the protective mechanism 3 can be limited, so that the use flexibility of the optical matrix switch device is improved. When it is necessary to inspect the components inside the housing 1, the protective mechanism 3 can be removed by operating the limiting mechanism 4, and then the sealing frame 22 can be taken out of the inspection groove by taking the auxiliary plate 21, so that the components inside the housing 1 can be inspected. The whole process is simple to operate, and the housing 1 does not need to be disassembled. The components inside the housing 1 can be quickly and accurately inspected, so that the subsequent use of the optical matrix switch device is guaranteed.

[0038] In this embodiment, the optical matrix switch device further comprises a control panel 6, which is arranged on the front of the housing 1. The control panel 6 is provided with a first network port 7, a second network port 8, an output port 9, a display screen, a button 10 and an indicator light 11. The first network port 7 and the second network port 8 are used for network control of the optical matrix switch device, so that it can be controlled by an external computer. The output port 9 is used for signal output, the display screen is used for displaying the detection parameters and function display of the optical matrix switch device, the button 10 is used for selecting the function of the optical matrix switch device, and the indicator light 11 is used for displaying the state of the optical matrix switch device. The components inside the housing 1 include an optical power detection data reporting module and an optical power fault alarm module. The optical power monitoring data reporting module is used to report the optical power monitoring data to the server through the first network port 7 to store the detection data of the optical matrix switch device. The optical power fault alarm module is connected to the indicator light 11, and is used to alarm the line fault through the indicator light 11. The housing 1 is also provided with an N×N optical matrix switch and a switch switching control component. The switch switching control component includes a switching module, a setting module, a control motor, a collimator, etc. Each output port of the N×N optical matrix switch is provided with a bidirectional PD detector, and the bidirectional PD detector is electrically connected to the switch switching control component. The switch switching control component can monitor whether the N×N optical matrix switch is in a light input state or a light output state according to the PD detector, and control the optical path switching of the N×N optical matrix switch. Among them, the control panel 6, the first network port 7, the second network port 8, the output port 9, the display screen, the button 10, the indicator light 11, the optical power detection data reporting module, the optical power fault alarm module, the N×N optical matrix switch and the switch switching control component are all existing technical solutions in the field of optical matrix switches, and are not the key protection contents of this embodiment.

[0039] Exemplarily, an opening is provided on the auxiliary plate 21 so as to ventilate and dissipate heat for the components inside the housing 1. The protection mechanism 3 includes a protection frame 31, a protection net 32 ​​and a protection cover 33, wherein the protection frame 31 has a vent, the vent is opposite to the opening, and the protection net 32 ​​is connected to the inner wall of the vent to block dust from the outside, prevent a large amount of dust from entering the housing 1, and reduce the risk of short circuit of the components inside the housing 1. The protection cover 33 is connected to the protection frame 31, and the protection cover 33 can be selectively covered on the vent. When the optical matrix switch device is in operation, the staff can set the protection cover 33 away from the vent to prevent the temperature of the components inside the optical matrix switch device from being too high when the optical matrix switch device is in operation, thereby ensuring the stability of the operation of the optical matrix switch device. When the optical matrix switch device is not in operation, the protection cover 33 covers the vent to prevent dust from the outside from entering the housing 1 and protect the components inside the housing 1.

[0040] In this embodiment, the limiting mechanism 4 includes a limiting plate 41 and a latch assembly 42. The limiting plate 41 is attached to the side wall of the housing 1. The auxiliary mechanism 2 also includes a positioning plate 23. The positioning plate 23 is fixedly connected to the auxiliary plate 21 and is arranged at the edge of the auxiliary plate 21. The limiting plate 41 and the positioning plate 23 are plugged into each other to limit the limiting plate 41 in the height direction. Specifically, a positioning groove is provided on the positioning plate 23, and a protrusion 411 is provided on the limiting plate 41. When the limiting plate 41 is assembled, the protrusion 411 can be inserted into the positioning groove to limit the limiting plate 41. The latch assembly 42 is connected to the limiting plate 41, wherein the latch assembly 42 has a locked state and an unlocked state. When the latch assembly 42 is in the locked state, the limiting plate 41 is fixed to the side wall of the housing 1. When the latch assembly 42 is in the unlocked state, the limiting plate 41 can be away from the side wall of the housing 1 and the positioning plate 23. When it is necessary to inspect the inside of the shell 1, it is only necessary to adjust the latch assembly 42 from the locked state to the unlocked state, so that the limit plate 41 can be removed, and then the protective mechanism 3 can be removed, and then the auxiliary plate 21 is taken out to remove the sealing frame 22 from the inspection groove, and the inside of the shell 1 can be inspected. The optical matrix switch device is easy to disassemble, which facilitates the internal inspection work.

[0041] Exemplarily, the latch assembly 42 includes a fixed frame 421, a latch 422 and a locking switch 423, wherein the fixed frame 421 is arranged on the limit plate 41, the fixed frame 421 includes a first channel and a second channel that are connected, a limit hole is provided on the limit plate 41, the limit hole is opposite to the first channel, the latch 422 is movably arranged in the first channel and the limit hole, and can be selectively fixedly connected to the shell 1, so that the latch 422 can be fixedly connected to the shell 1 after passing through the first channel and the limit hole, and the limit plate 41 is preliminarily fixed to the shell 1 to prevent the limit plate 41 from being separated from the shell 1. A positioning groove is provided on the latch 422. When the latch 422 is fixed to the housing 1, the positioning groove is opposite to the second channel. The locking switch 423 has a positioning pin 4231. The positioning pin 4231 can selectively pass through the second channel and be inserted into the positioning groove. When the positioning pin 4231 is inserted into the positioning groove, the positioning groove can position the latch 422 to prevent the latch 422 from moving in the first channel and the limiting hole, thereby fixing the limiting plate 41 to the housing 1. When the positioning pin 4231 is away from the positioning groove, the latch 422 can move in the first channel and the limiting hole. The staff can remove the latch 422 from the first channel and the limiting hole to separate the limiting plate 41 from the housing 1, which is convenient for the staff to subsequently inspect and repair the components inside the housing 1.

[0042] Exemplarily, regarding the fixed connection between the latch 422 and the housing 1, a fixing groove can be set on the side wall of the housing 1, an internal thread can be set in the fixing groove, and an external thread can be set on the latch 422. When the latch 422 passes through the first channel and the limiting hole, it can be threadedly connected with the fixing groove to achieve a fixed connection between the two. The setting of the locking switch 423 can limit the latch 422 to prevent the latch 422 from rotating in the first channel and the limiting hole, further improving the stability of the assembly of the limiting mechanism 4 and the housing 1. Of course, it is also possible to set the latch 422 as a magnetic part. When the latch 422 passes through the first channel and the limiting hole, it can be magnetically fixed to the side wall of the housing 1.

[0043] Exemplarily, the locking switch 423 includes a fixed seat 4232, a mounting tube 4233, a pulling member 4234, a limiting ring 4235 and an elastic member 4236. The fixed seat 4232 is fixed to the fixed frame 421. The mounting tube 4233 is located in the fixed seat 4232 and is opposite to the second channel. A retaining ring is provided on the top of the mounting tube 4233. The pulling member 4234 is movably arranged in the mounting tube 4233 and is connected to the positioning pin 4231. By pulling the pulling member 4234, the position of the positioning pin 4231 can be adjusted, and whether the positioning pin 4231 is inserted into the positioning groove can be controlled, thereby controlling the positional relationship between the limiting plate 41 and the shell 1. The limiting ring 4235 is sleeved on the pulling member 4234 and can move along the installation tube 4233 with the movement of the pulling member 4234. The elastic member 4236 abuts between the retaining ring and the limiting ring 4235. When the staff adjusts the pulling member 4234 to make the positioning pin 4231 away from the positioning groove, the elastic member 4236 will be compressed. When the external force is removed, the pulling member 4234 automatically resets under the action of the elastic member 4236, making the operation of the staff simpler, reducing the difficulty of the staff's operation, and improving the rationality of the design of the locking switch 423. The elastic member 4236 can be a spring or a spring sheet, preferably a spring. When assembling, the pulling member 4234 is inserted into the spring setting, and the two ends of the spring are respectively abutted against the retaining ring and the limiting ring 4235. When the staff pulls the pulling member 4234, the overall force of the locking switch 423 is more stable, so that the staff can pull the pulling member 4234 more smoothly.

[0044] Furthermore, if Figure 2 , Figure 3 and Figure 6As shown in , the locking switch 423 also includes an annular member 4237 and a mounting rod 4238. The annular member 4237 is arranged at the bottom of the limiting ring 4235 and is fixedly connected to the limiting ring 4235. The side wall of the annular member 4237 is provided with a through hole, and the outer wall of the pulling member 4234 is provided with an annular groove. The mounting rod 4238 passes through the through hole and stays in the annular groove. In this way, by installing or removing the mounting rod 4238, the limiting ring 4235 and the pulling member 4234 can be disassembled and connected, which is convenient for inspecting and repairing the parts inside the locking switch 423 at any time, and ensuring the quality of the optical matrix switch device. At the same time, when the external force on the pulling member 4234 is removed and the elastic member 4236 is reset, the annular member 4237 abuts against the fixed frame 421, which can buffer the elasticity released by the elastic member 4236 and protect the limiting ring 4235, thereby further improving the rationality of the design of the locking switch 423. Of course, it is also possible to provide an external thread on the pulling member 4234 and an internal thread on the limiting ring 4235. Through the cooperation of the internal thread and the external thread, the limiting ring 4235 and the pulling member 4234 can be detachably connected. There is no specific restriction on the connection method between the limiting ring 4235 and the pulling member 4234. Preferably, the pulling member 4234 and the positioning pin 4231 can be detachably connected, which makes it easier to disassemble the limiting ring 4235 and the pulling member 4234. Among them, it is possible to provide a protrusion on the positioning pin 4231, and provide a fixing groove at one end of the pulling member 4234 connected to the positioning pin 4231. The installation of the positioning pin 4231 and the pulling member 4234 is completed by inserting the protrusion into the fixing groove, and the positioning pin 4231 and the pulling member 4234 are separated by pulling the protrusion out of the fixing groove.

[0045] In this embodiment, the limiting mechanism 4 includes two limiting plates 41, which are arranged at intervals on the side wall of the housing 1, and a latch assembly 42 is correspondingly arranged on each limiting plate 41, wherein the linkage mechanism 5 includes a connecting plate 51, a connecting rod 52 and an abutting plate 53, wherein the connecting plate 51 is connected between the two limiting plates 41, the connecting rod 52 connects the two pulling members 4234, and the abutting plate 53 abuts between the connecting plate 51 and the protective frame 31. Such a setting can realize a more stable limiting of the protective mechanism 3, ensuring that when the light matrix opening device is in a working state, the protective mechanism 3 is stably placed on the auxiliary plate 21, and the connecting rod 52 connects the two pulling members 4234, so that the two latch assemblies 42 can be synchronously adjusted from the locked state to the unlocked state, thereby making the two limiting plates 41 detached from the housing 1 at the same time, thereby reducing the operating difficulty of the staff, and enabling the staff to quickly complete the disassembly of the protective mechanism 3. Specifically, a groove is provided on the side wall of the protection frame 31, one end of the abutment plate 53 abuts against the connecting plate 51, and the other end is inserted into the groove and abuts against its inner wall, which can further improve the stability of the limiting mechanism 4 and the linkage mechanism 5 on the protection mechanism 3.

[0046] Preferably, the protection mechanism 3 further includes a reinforcing plate, which is fixed to the side wall of the protection frame 31. A positioning hole is provided on the reinforcing plate, which is opposite to the groove on the side wall of the protection frame 31. When the abutting plate 53 is installed, one end of the abutting plate 53 abuts against the connecting plate 51, and the other end passes through the positioning hole and abuts against the inner wall of the groove. The provision of the reinforcing plate reduces the deformation degree of the abutting plate 53, ensuring that the abutting plate 53 can abut more stably between the connecting plate 51 and the protection frame 31.

[0047] In this embodiment, the protective cover 33 includes a fixed plate 331 and a sliding plate 332. The fixed plate 331 is connected to the protective frame 31. A first guide portion is provided on the fixed plate 331, and a second guide portion is provided on the sliding plate 332. One of the first guide portion and the second guide portion is a guide groove, and the other is a guide bar. That is, the sliding plate 332 is slidably connected to the fixed plate 331, so that the sliding plate 332 can selectively cover the opening, so that when the optical matrix switch device is in operation, the sliding plate 332 is away from the opening, and when the optical matrix switch device is not in operation, the sliding plate 332 covers the opening. Specifically, in this embodiment, the guide groove is provided on the fixed plate 331, and the guide bar is provided on the sliding plate 332. Preferably, a blocking portion can be provided at one end of the inner wall of the guide groove close to the opening to block the sliding plate 332 and prevent the sliding plate 332 from being separated from the fixed plate 331.

[0048] As preferably, Figure 4 , Figure 5 and Figure 7 As shown in , a first magnetic member 3311 is provided on the first guide portion, a second magnetic member 3321 is provided on the second guide portion, and a third magnetic member is provided on the protective frame 31. The third magnetic member is provided on the side of the opening away from the fixed plate 331. When the sliding plate 332 overlaps with the fixed plate 331, the first magnetic member 3311 and the second magnetic member 3321 are magnetically attracted to each other. When the sliding plate 332 covers the opening, the first magnetic member 3311 and the third magnetic member are magnetically attracted to each other. The magnetic attraction of the first magnetic member 3311 and the second magnetic member 3321 can fix the sliding plate 332 when the sliding plate 332 is away from the opening, and the magnetic attraction of the first magnetic member 3311 and the third magnetic member can fix the sliding plate 332 when the sliding plate 332 covers the opening. In this way, the sliding plate 332 can be prevented from sliding randomly when the optical matrix switch device is transported, making the design of the protective mechanism 3 more reasonable. The first magnetic member 3311 may be a magnet, and the second magnetic member 3321 and the third magnetic member may be iron sheets, nickel sheets or cobalt sheets, without specific limitation.

[0049] Preferably, the protective cover 33 further includes a handle 333 , which is disposed on the sliding plate 332 to facilitate the staff to slide the sliding plate 332 .

[0050] Of course, the protective cover 33 can also be connected to the protective frame 31 through a hinge, and then magnetic suction parts are provided on both the protective cover 33 and the protective frame 31, so that the protective cover 33 and the protective frame 31 can be fixed to each other when they are buckled. The specific structure and design principle of the hinge can be referred to the prior art, and will not be described here.

[0051] In this embodiment, the steps for disassembling the auxiliary mechanism 2, the protective mechanism 3, the limiting mechanism 4 and the linkage mechanism 5 on the optical matrix switch device are as follows: adjust the pulling member 4234 to make the positioning pin 4231 away from the positioning groove, then take out the pin 422 from the limiting hole and the first channel, adjust the limiting plate 41 to make the limiting plate 41 away from the shell 1, then the protective mechanism 3 can be removed, and then the auxiliary plate 21 will be extracted, and the sealing frame 22 will be taken out from the inspection groove, thus completing the disassembly of the auxiliary mechanism 2, the protective mechanism 3, the limiting mechanism 4 and the linkage mechanism 5, and the staff can quickly inspect the components inside the shell 1.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An optical matrix switch device, comprising a housing (1) and a component arranged inside the housing (1), wherein a maintenance slot is provided on the top of the housing (1), characterized in that: The optical matrix switch device also includes: The auxiliary mechanism (2) comprises an auxiliary plate (21) and a sealing frame (22), wherein the auxiliary plate (21) is fixedly connected to the sealing frame (22), and the sealing frame (22) is inserted into the inspection groove; A protection mechanism (3) is located on the auxiliary plate (21), and the protection mechanism (3) is used to prevent external dust from entering the interior of the housing (1); Two limiting mechanisms (4), the two limiting mechanisms (4) being respectively located on two opposite side walls of the shell (1), and the limiting mechanisms (4) being capable of being selectively fixed to the side walls of the shell (1); A linkage mechanism (5), wherein the linkage mechanism (5) is connected between the protection mechanism (3) and the limiting mechanism (4).

2. The optical matrix switch device according to claim 1, characterized in that: The auxiliary plate (21) is provided with an opening, and the protective mechanism (3) comprises a protective frame (31), a protective net (32) and a protective cover (33); the protective frame (31) has a vent, and the vent is opposite to the opening; the protective net (32) is connected to the inner wall of the vent, and the protective cover (33) is connected to the protective frame (31); the protective cover (33) can be selectively covered on the vent.

3. The optical matrix switch device according to claim 2, characterized in that: The limiting mechanism (4) comprises a limiting plate (41) and a latch assembly (42), wherein the limiting plate (41) is in contact with the side wall of the shell (1), and the auxiliary mechanism (2) further comprises a positioning plate (23), wherein the positioning plate (23) is connected to the auxiliary plate (21), and the limiting plate (41) and the positioning plate (23) are plugged into each other, and the latch assembly (42) is connected to the limiting plate (41), wherein the latch assembly (42) has a locked state and an unlocked state, wherein when the latch assembly (42) is in the locked state, the limiting plate (41) is fixed to the side wall of the shell (1), and when the latch assembly (42) is in the unlocked state, the limiting plate (41) can be away from the side wall of the shell (1) and the positioning plate (23).

4. The optical matrix switch device according to claim 3, characterized in that: The latch assembly (42) comprises a fixing frame (421), a latch (422) and a locking switch (423); the fixing frame (421) is placed on the limiting plate (41); the fixing frame (421) comprises a first channel and a second channel which are connected to each other; a limiting hole is provided on the limiting plate (41); the limiting hole is opposite to the first channel; the latch (422) is movably arranged in the first channel and the limiting hole, and can be selectively fixedly connected to the housing (1); the latch (422) is provided with a positioning groove; when the latch (422) is fixedly connected to the housing (1), the positioning groove is opposite to the second channel; the locking switch (423) has a positioning pin (4231); the positioning pin (4231) can selectively pass through the second channel and be inserted into the positioning groove.

5. The optical matrix switch device according to claim 4, characterized in that: The locking switch (423) comprises a fixing seat (4232), a mounting tube (4233), a pulling member (4234), a limiting ring (4235) and an elastic member (4236); the fixing seat (4232) is fixed to the fixing frame (421); the mounting tube (4233) is located in the fixing seat (4232); a retaining ring is provided on the top of the mounting tube (4233); the pulling member (4234) is movably arranged in the mounting tube (4233) and is opposite to the second channel; the positioning pin (4231) is connected to the pulling member (4234); the limiting ring (4235) is sleeved on the pulling member (4234) and can move along the mounting tube (4233) with the pulling member (4234); and the elastic member (4236) abuts between the retaining ring and the limiting ring (4235).

6. The optical matrix switch device according to claim 5, characterized in that: The locking switch (423) further includes an annular member (4237) and a mounting rod (4238), wherein the annular member (4237) is arranged at the bottom of the limiting ring (4235), a through hole is provided on the side wall of the annular member (4237), an annular groove is provided on the outer wall of the pulling member (4234), and the mounting rod (4238) passes through the through hole and stays in the annular groove.

7. The optical matrix switch device according to claim 5, characterized in that: The limiting mechanism (4) comprises two limiting plates (41), the two limiting plates (41) are arranged at intervals on the side wall of the shell (1), and each limiting plate (41) is correspondingly provided with a latch assembly (42). The linkage mechanism (5) comprises a connecting plate (51), a connecting rod (52) and an abutting plate (53), the connecting plate (51) is connected between the two limiting plates (41), the connecting rod (52) is connected to the two pulling members (4234), and the abutting plate (53) is abutted between the connecting plate (51) and the protective frame (31).

8. The optical matrix switch device according to claim 2, characterized in that: The protective cover (33) comprises a fixed plate (331) and a sliding plate (332); the fixed plate (331) is fixedly connected to the protective frame (31); a first guide portion is provided on the fixed plate (331); a second guide portion is provided on the sliding plate (332); one of the first guide portion and the second guide portion is a guide groove, and the other is a guide bar; the sliding plate (332) can selectively cover the opening.

9. The optical matrix switch device according to claim 8, characterized in that: A first magnetic component (3311) is provided on the first guide portion, a second magnetic component (3321) is provided on the second guide portion, and a third magnetic component is provided on the protective frame (31). When the sliding plate (332) overlaps with the fixed plate (331), the first magnetic component (3311) and the second magnetic component (3321) are magnetically attracted to each other. When the sliding plate (332) covers the opening, the first magnetic component (3311) and the third magnetic component are magnetically attracted to each other.

10. The optical matrix switch device according to claim 8, characterized in that: The protective cover (33) further comprises a handle (333), and the handle (333) is arranged on the sliding plate (332).

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