Optical fiber wireless transmission device and pumped storage power station generator set

Abstract

The invention provides an optical fiber wireless transmission device which comprises a transmitter body, the transmitter body is provided with a plugging port and a buffer groove communicated with the plugging port, the plugging port is arranged on one side wall of the buffer groove, one side, opposite to the plugging port, of the buffer groove is opened, and the other side of the buffer groove is provided with a plurality of optical fibers. A line can be directly connected and is connected with the plugging port; and the sealing assembly seals the buffer groove so as to prevent humid air from entering the plugging port through the buffer groove, thereby preventing a metal sheet in the plugging port from being rusted to influence data transmission.

Description

Technical Field

[0001] The present application relates to the field of pumped storage technology, and in particular to an optical fiber wireless transmission device and a pumped storage power station generator set. Background Art

[0002] During the power generation process of a pumped-storage hydropower station, it is necessary to monitor the temperature of the generator set and transmit the monitored data through an optical fiber wireless transmission device. The existing optical fiber wireless transmission device for temperature monitoring of the generator set of a pumped-storage power station needs to be connected to the optical fiber line through a reserved connection port during use. However, since the reserved connection ports are mostly exposed and the device is used in a relatively humid environment, moisture can easily cause rust to the metal sheet in the reserved connection port, thereby affecting its transmission performance and resulting in a shorter service life. Summary of the invention

[0003] In view of this, the purpose of the present application is to propose an optical fiber wireless transmission device and a pumped storage power station generator set to solve the problem that the connection ports in the existing optical fiber wireless transmission devices are prone to rust.

[0004] Based on the above objectives, the present application provides an optical fiber wireless transmission device, comprising:

[0005] A transmitter body, wherein the transmitter body is provided with a plug port and a buffer slot communicating with the plug port, the plug port is arranged on one of the side walls of the buffer slot, and a side of the buffer slot opposite to the plug port is opened so that a line passes through the buffer slot and is connected to the plug port;

[0006] A sealing component is provided, wherein the sealing component seals the buffer groove to prevent moist air from entering the plug-in port through the buffer groove.

[0007] Optionally, a drying component is provided in the buffer tank to dry the air in the buffer tank.

[0008] Optionally, the sealing assembly includes:

[0009] A cover plate, used for sealing the top notch of the buffer tank;

[0010] The side seal is connected to the cover plate and is used to seal the side notch opposite to the plug port. The side seal is provided with a connecting hole for the line to pass through.

[0011] Optionally, two opposite side walls of the transmission body are provided with guide grooves, and fixing components for fixing the cover plate and the transmission body are symmetrically provided on both sides of the cover plate;

[0012] The fixing assembly comprises:

[0013] Side connecting plates, symmetrically arranged on both sides of the cover plate;

[0014] A guide rod, fixedly connected to the side connecting plate and arranged parallel to the cover plate, the guide rod being located in the guide groove to provide guidance for the pulling action of the cover plate;

[0015] A fixing block fixedly connected to the side wall of the transmission body provided with the guide groove and covering a portion of the guide groove;

[0016] A fixing bolt is threadedly connected to the fixing block, wherein the fixing bolt abuts against the bottom of the guide groove and squeezes the guide rod to fix the guide rod.

[0017] Optionally, the side seal includes a first sealing plate and a second sealing plate, the first sealing plate is fixedly connected to the cover plate and the side connecting plate, the second sealing plate is fixedly connected to the bottom wall of the buffer groove, a first half hole is provided on the first sealing plate, a second half hole is provided on the second sealing plate, the first sealing plate abuts against the second sealing plate, and the first half hole and the second half hole are merged into the connecting hole.

[0018] Optionally, the guide rod is fixedly connected to a limit block, and the limit block is located in the guide groove, and the fixing bolt presses the limit block in the guide direction to increase the sealing performance of the side seal to the buffer groove.

[0019] Optionally, the drying component includes a drying box and a desiccant, the desiccant is arranged in the drying box, and a vent hole is provided on the drying box.

[0020] Optionally, the first sealing plate and the second sealing plate are both elastic rubber plates, and the diameter of the connecting hole is smaller than the diameter of the line.

[0021] Optionally, a plurality of the communicating holes and the plug-in ports are provided, and each of the plug-in ports is located opposite to a communicating hole.

[0022] Based on the same inventive concept, the present disclosure also provides a pumped-storage power station generator set, comprising any of the above-mentioned optical fiber wireless transmission devices.

[0023] From the above, it can be seen that the present application provides a fiber optic wireless transmission device, including a transmitter body and a sealing assembly. The transmitter body is provided with a buffer groove connected to the plug-in port, and the sealing assembly seals the buffer groove, thereby constructing a closed buffer space. The buffer space completely covers the plug-in port to prevent the plug-in port from being directly exposed to the external environment and prevents humid air in the external environment from entering the plug-in port, thereby preventing the metal sheet in the plug-in port from rusting and affecting data transmission; in addition, the side of the buffer groove opposite to the plug-in port is opened to allow the line to pass directly and connect to the plug-in port, thereby reducing the complexity of the line connection and improving the efficiency of the line connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of an embodiment of the present application;

[0026] Figure 2 An exploded view of a drying assembly is shown for an embodiment of the present application;

[0027] Figure 3 A schematic diagram showing a fixing component according to an embodiment of the present application.

[0028] Figure numerals: 1. Transmitter body; 11. Plug port; 12. Buffer slot; 13. Guide slot; 2. Sealing assembly; 21. Cover plate; 22. Side seal; 221. First sealing plate; 222. Second sealing plate; 2211. Connecting hole; 3. Drying assembly; 31. Drying box; 311. Vent; 4. Fixing assembly; 41. Side connecting plate; 42. Guide rod; 43. Fixing block; 44. Fixing bolt; 5. Limiting block. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Based on the background, a hydropower station that utilizes the power during the low load period of the power grid to pump water from the lower reservoir to the upper reservoir for energy storage, and releases water back to the lower reservoir for power generation during the peak load period of the power grid is also called a storage hydropower station. During the power generation process of the power station, the temperature of the generator set needs to be monitored and the monitored data needs to be transmitted through an optical fiber wireless transmission device. The existing optical fiber wireless transmission device for temperature monitoring of the generator set of the pumped storage power station relies on the reserved connection ports when connecting the optical fiber line. These connection ports are often designed to be exposed and directly exposed to the external environment.

[0032] Since hydropower stations are usually located in areas with high humidity and the working environment is complex and changeable, the exposed connection ports are very susceptible to moisture. If they are in a humid environment for a long time, the metal sheets in the connection ports will rust, which will not only weaken the conductivity of the metal sheets, but also increase the resistance of the connection, thereby affecting the transmission quality of the optical fiber signal. As the degree of corrosion deepens, the transmission performance will gradually decline until it cannot meet the requirements of data transmission, resulting in the failure of the entire monitoring system.

[0033] The following is combined with Figure 1-3 The embodiments of the present application will be described in detail.

[0034] like Figure 1 and Figure 2 As shown, an optical fiber wireless transmission device comprises:

[0035] A transmitter body 1, wherein the transmitter body 1 is provided with a plug port 11 and a buffer slot 12 connected to the plug port 11, wherein the plug port 11 is arranged on one of the side walls of the buffer slot 12, and the side of the buffer slot 12 opposite to the plug port 11 is open, so that the line passes through the buffer slot 12 and is connected to the plug port 11;

[0036] The sealing component 2 seals the buffer groove 12 to prevent moist air from entering the plug port 11 through the buffer groove 12 .

[0037] Specifically, the transmitter body 1 is a rectangular parallelepiped, and the buffer slot 12 is opened on one side of the transmitter body 1, which is convenient for the centralized arrangement of components in the transmitter body 1. The plug-in ports 11 are arranged in a plurality and arranged in a row on one of the longer side walls of the buffer slot 12, so as to facilitate the simultaneous connection of multiple optical fibers according to actual conditions and improve data transmission efficiency. The plug-in ports 11 can adopt standard optical fiber interface specifications, and can also have a built-in metal contact protection mechanism, such as gold plating or silver plating, to enhance its corrosion resistance while ensuring good conductivity and signal transmission quality.

[0038] In this embodiment, a buffer groove 12 connected to the plug port 11 is provided on the transmitter body 1, and the sealing assembly 2 seals the buffer groove 12, thereby constructing a closed buffer space, which completely covers the plug port 11 to prevent the plug port 11 from being directly exposed to the external environment, and prevents humid air in the external environment from entering the plug port 11, thereby preventing the metal sheet in the plug port 11 from rusting and affecting data transmission; in addition, the side of the buffer groove 12 opposite to the plug port 11 is opened to allow the line to pass through and connect to the plug port 11, thereby reducing the complexity of the line connection and improving the efficiency of the line connection.

[0039] like Figure 1 and Figure 2 As shown, in some embodiments, a drying component 3 is provided in the buffer tank 12 to dry the air in the buffer tank 12 .

[0040] In addition, the drying assembly 3 includes a drying box 31 and a desiccant. The desiccant is arranged in the drying box 31 , and a vent hole 311 is arranged on the drying box 31 .

[0041] Specifically, in order to facilitate the replacement of the desiccant in the drying box 31, the drying box 31 can be designed as a detachable drying box 31 or a slide rail drying box 31. The desiccant can be of a high-efficiency, non-toxic and environmentally friendly type, such as silica gel, calcium chloride or molecular sieve, etc. These desiccant have excellent moisture absorption properties and can keep the air in the buffer tank 12 dry for a long time. A humidity sensor can be set in the buffer to monitor the humidity in the buffer tank 12 in real time. When the humidity exceeds a preset threshold, an alarm signal is triggered to remind the maintenance personnel to replace or regenerate the desiccant in time.

[0042] In this embodiment, the drying component 3 can dry the air in the buffer tank 12, improve the dryness of the buffer tank 12, and further prevent the metal sheet in the plug port 11 from rusting, thereby ensuring the normal operation of the optical fiber wireless transmission device.

[0043] like Figure 2 and Figure 3 As shown, in some embodiments, the sealing assembly 2 includes:

[0044] A cover plate 21, used to seal the top notch of the buffer tank 12;

[0045] The side seal 22 is connected to the cover plate 21 to seal the side notch opposite to the plug port 11. The side seal 22 is provided with a connecting hole 2211 for the line to pass through.

[0046] In addition, a plurality of the communication holes 2211 and the plug ports 11 are provided, and each of the plug ports 11 is located opposite to a communication hole 2211 .

[0047] Specifically, the cover plate 21 abuts against the upper surface of the transmission body 1 to completely cover the top notch of the buffer tank 12, preventing external moisture from entering the buffer tank 12 through the gap between the cover plate 21 and the transmission body 1, thereby affecting the dryness in the buffer tank 12. A sealing strip may also be provided between the cover plate 21 and the transmission body 1, the sealing strip seals the gap between the cover plate 21 and the transmission body 1, and further prevents external humid air from entering the buffer tank 12 through the gap between the cover plate 21 and the transmission body 1. A sealing strip may also be provided between the side seal 22 and the side edge of the transmission body 1, the sealing strip seals the gap between the side seal 22 and the transmission body 1, and further prevents external humid air from entering the buffer tank 12 through the gap between the side seal 22 and the transmission body 1.

[0048] In addition, the connecting hole 2211 corresponds to the plug port 11 one by one, and the connecting hole 2211 is opposite to the plug port 11. When connecting the device, the user can quickly find the correct plug position without complicated matching and debugging. This design greatly shortens the connection time and improves work efficiency.

[0049] In this embodiment, the cover plate 21 seals the top notch of the buffer groove 12, and the side seal 22 seals the side notch of the buffer groove 12. The cover plate 21 and the side seal 22 work together to seal the buffer groove 12, thereby preventing outside air from entering the buffer groove 12 and affecting the dryness inside the buffer groove 12. The connecting hole 2211 on the side sealing plate is used for the line to pass through, and the connecting hole 2211 is opposite to the plug port 11, which is convenient for users to quickly find the correct plug position when connecting devices, thereby improving work efficiency.

[0050] like Figure 1 and Figure 2As shown, in some embodiments, two opposite side walls of the transmission body 1 are provided with guide grooves 13, and fixing components 4 for fixing the cover plate 21 and the transmission body 1 are symmetrically provided on both sides of the cover plate 21;

[0051] The fixing assembly 4 comprises:

[0052] Side connecting plates 41 are symmetrically arranged on both sides of the cover plate 21;

[0053] A guide rod 42 is fixedly connected to the side connecting plate 41 and is arranged parallel to the cover plate 21. The guide rod 42 is located in the guide groove 13 to provide guidance for the pulling action of the cover plate 21.

[0054] A fixing block 43 is fixedly connected to the side wall of the transmission body 1 provided with the guide groove 13, and covers a part of the guide groove 13;

[0055] The fixing bolt 44 is threadedly connected to the fixing block 43 . The fixing bolt 44 abuts against the bottom of the guide groove 13 and squeezes the guide rod 42 to fix the guide rod 42 .

[0056] Specifically, the side connecting plate 41 provides an installation position for the guide rod 42, and the side connecting plate 41 abuts against the side wall of the transmission body 1, thereby improving the compactness of the side seal 22 and the transmission body 1. A gap is provided between the guide rod 42 and the groove wall of the guide groove 13 to facilitate the pulling and pulling of the cover plate 21, and to facilitate the fixing bolt 44 to pass through the side of the guide rod 42 and abut against the groove bottom of the guide groove 13, thereby squeezing the guide rod 42 to fix the guide rod 42.

[0057] In this embodiment, the design of the guide groove 13 and the guide rod 42 provides a guide for the pulling and pulling of the cover plate 21, ensuring the stability and accuracy of the cover plate 21 during the pulling and pulling process. The fixing block 43 provides an installation position for the fixing bolt 44. The fixing bolt 44 fixes the guide rod 42 in the guide groove 13 by squeezing the guide rod 42, thereby fixing the cover plate 21 to the transmission body 1. In addition, the fixing bolt 44 squeezes the guide rod 42 so that the guide rod 42 moves downward, thereby driving the cover plate 21 to squeeze the transmission body 1, thereby improving the sealing between the cover plate 21 and the transmission body 1.

[0058] like Figure 2 and Figure 3As shown, in some embodiments, the side seal 22 includes a first sealing plate 221 and a second sealing plate 222, the first sealing plate 221 is fixedly connected to the cover plate 21 and the side connecting plate 41, the second sealing plate 222 is fixedly connected to the bottom wall of the buffer groove 12, a first half hole is provided on the first sealing plate 221, a second half hole is provided on the second sealing plate 222, the first sealing plate 221 abuts against the second sealing plate 222, and the first half hole and the second half hole are merged into the connecting hole 2211.

[0059] In this embodiment, the first sealing plate 221 and the second sealing plate 222 are used to seal the side notches of the buffer groove 12. In addition, the optical fiber is usually provided with an optical fiber connector, which is relatively large and cannot directly pass through the connecting hole 2211, thereby making it difficult for the optical fiber to pass through the connecting hole 2211. However, if the connecting hole 2211 is designed to be too large, the optical fiber cannot be effectively limited. In order to solve the above problem, the first sealing plate 221 and the second sealing plate 222 are provided in this embodiment, and the first sealing plate 221 is provided with a first half hole, and the second sealing plate 222 is provided with a second half hole. When the first half hole 21 abuts against the second sealing plate 222, the first half hole and the second half hole are merged into a connecting hole 2211. The connecting hole 2211 is used for the optical fiber to pass through. In this embodiment, the connecting hole 2211 is designed to be a combination of two half holes. In actual operation, it is only necessary to simply separate the first sealing plate 221 and the second sealing plate 222, and then put the optical fiber into one of the half holes, and then merge the two sealing plates. At this time, the optical fiber will be located in the connecting hole 2211. The above design not only simplifies the insertion process of the optical fiber, but also ensures the stability and limiting effect of the optical fiber in the connecting hole 2211.

[0060] like Figure 2 and Figure 3 As shown, in some embodiments, the guide rod 42 is fixedly connected to the limit block 5, and the limit block 5 is located in the guide groove 13, and the fixing bolt 44 squeezes the limit block 5 in the guide direction to increase the sealing performance of the side seal 22 to the buffer groove 12.

[0061] In this embodiment, when the fixing bolt 44 squeezes the limit block 5, it drives the guide rod to form a forward movement trend, so that the side connecting plate 41 is tightly fitted with the wireless transmitter. At the same time, due to the guiding effect of the guide rod, the first sealing plate 221 and the second sealing plate 222 are precisely abutted under the action of the extrusion force. This precise fit greatly enhances the sealing effect of the side notches of the buffer groove 12.

[0062] like Figure 1 and Figure 2As shown, in some embodiments, the first sealing plate 221 and the second sealing plate 222 are both elastic rubber plates, and the diameter of the connecting hole 2211 is smaller than the line diameter.

[0063] In this embodiment, the elastic deformation ability of the elastic rubber sheet is utilized to enable the circuit to be “squeezed” through the connecting hole 2211 . When the circuit passes through the connecting hole 2211 , the elastic rubber sheet tightly wraps the circuit to form a tight seal, thereby improving the sealing of the buffer slot 12 .

[0064] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0065] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments, the present application also provides a pumped-storage power station generator set, including the optical fiber wireless transmission device described in any of the above-mentioned embodiments, and having the beneficial effects of the corresponding optical fiber wireless transmission device embodiments, which will not be repeated here.

[0066] To summarize, the transmitter body 1 in the present application is provided with a buffer groove 12 which is connected to the plug port 11, and the sealing assembly 2 seals the buffer groove 12, thereby constructing a closed buffer space, which completely covers the plug port 11, prevents the plug port 11 from being directly exposed to the external environment, and prevents moisture in the external environment from entering the plug port 11, thereby preventing the metal sheet in the plug port 11 from rusting and affecting data transmission; in addition, the side of the buffer groove 12 opposite to the plug port 11 is opened so that the line can pass directly and connect to the plug port 11, which reduces the complexity of the line connection and improves the efficiency of the line connection.

[0067] The fixing bolt 44 in the present application squeezes the guide rod 42 to fix the guide rod 42 in the guide groove 13, thereby playing the role of fixing the cover plate 21 to the transmitter body 1. The fixing bolt 44 squeezes the guide rod 42 so that the guide rod 42 moves downward, thereby driving the cover plate 21 to squeeze the transmitter body 1, thereby improving the sealing performance of the cover plate 21 to the top notch of the buffer groove 12. At the same time, the fixing bolt 44 squeezes the limit block 5, thereby driving the guide rod 42 to form a forward movement trend, thereby making the side connecting plate 41 fit tightly with the wireless transmitter, and because the fixing bolt 44 squeezes the limit block 5, the first sealing plate 221 and the second sealing plate 222 just achieve precise abutment under the action of the squeezing force, and this precise cooperation greatly improves the sealing effect of the side notch of the buffer groove 12. Therefore, the present application achieves a tight sealing of the top notch and the side notch of the buffer groove 12 by cleverly utilizing the interaction of the fixing bolt 44, the limit block 5 and the guide rod 42, thereby improving the overall sealing performance of the buffer groove 12.

[0068] A person of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0069] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which the embodiments of the present application will be implemented, that is, these details should be fully within the scope of understanding of those skilled in the art. In the case of elaborating specific details to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0070] Although the present invention has been described in conjunction with specific embodiments of the present invention, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description.For example, other memory architectures may use the discussed embodiments.

[0071] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the protection scope of the present application.

Claims

1. An optical fiber wireless transmission device, characterized in that: include: A transmitter body (1), the transmitter body (1) being provided with a plug port (11) and a buffer groove (12) communicating with the plug port (11), the plug port (11) being arranged on one of the side walls of the buffer groove (12), and the side of the buffer groove (12) opposite to the plug port (11) being opened so that a line can pass through the buffer groove (12) and be connected to the plug port (11); A sealing component (2), wherein the sealing component (2) seals the buffer groove (12) to prevent moist air from entering the plug port (11) through the buffer groove (12).

2. The optical fiber wireless transmission device according to claim 1, characterized in that: A drying component (3) is provided in the buffer tank (12) for drying the air in the buffer tank (12).

3. The optical fiber wireless transmission device according to claim 2, characterized in that: The sealing assembly (2) comprises: A cover plate (21) for sealing a top notch of the buffer tank (12); The side seal (22) is connected to the cover plate (21) and is used to seal the side notch opposite to the plug port (11). The side seal (22) is provided with a connecting hole (2211) for the line to pass through.

4. The optical fiber wireless transmission device according to claim 3, characterized in that: Two opposite side walls of the transmission body (1) are provided with guide grooves (13), and fixing components (4) for fixing the cover plate (21) and the transmission body (1) are symmetrically provided on both sides of the cover plate (21); The fixing assembly (4) comprises: Side connecting plates (41) are symmetrically arranged on both sides of the cover plate (21); A guide rod (42) is fixedly connected to the side connecting plate (41) and is arranged parallel to the cover plate (21); the guide rod (42) is located in the guide groove (13) to provide guidance for the pulling action of the cover plate (21); A fixed block (43) is fixedly connected to a side wall of the transmission body (1) provided with the guide groove (13), and covers a portion of the guide groove (13); A fixing bolt (44) is threadedly connected to the fixing block (43); the fixing bolt (44) abuts against the bottom of the guide groove (13) and presses the guide rod (42) to fix the guide rod (42).

5. The optical fiber wireless transmission device according to claim 4, characterized in that: The side sealing member (22) comprises a first sealing plate (221) and a second sealing plate (222); the first sealing plate (221) is fixedly connected to the cover plate (21) and the side connecting plate (41); the second sealing plate (222) is fixedly connected to the bottom wall of the buffer groove (12); a first half hole is provided on the first sealing plate (221); a second half hole is provided on the second sealing plate (222); the first sealing plate (221) abuts against the second sealing plate (222); the first half hole and the second half hole are combined into the connecting hole (2211).

6. The optical fiber wireless transmission device according to claim 4, characterized in that: The guide rod (42) is fixedly connected to the limit block (5), and the limit block (5) is located in the guide groove (13), and the fixing bolt (44) presses the limit block (5) in the guide direction to increase the sealing performance of the side seal (22) on the buffer groove (12).

7. The optical fiber wireless transmission device according to claim 1, characterized in that: The drying component (3) comprises a drying box (31) and a desiccant, wherein the desiccant is arranged in the drying box (31), and a vent hole (311) is provided on the drying box (31).

8. The optical fiber wireless transmission device according to claim 5, characterized in that: The first sealing plate (221) and the second sealing plate (222) are both elastic rubber plates, and the diameter of the connecting hole (2211) is smaller than the diameter of the line.

9. The optical fiber wireless transmission device according to claim 8, characterized in that: A plurality of the communicating holes (2211) and the plugging ports (11) are provided, and each of the plugging ports (11) is located opposite to a communicating hole (2211).

10. A pumped storage power station generator set, characterized in that: The optical fiber wireless transmission device comprises the optical fiber wireless transmission device according to any one of claims 1 to 9.

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