Pressure-resistant sealing mechanism for deep-sea laser package shell

Abstract

The utility model relates to deep sea laser packaging technical field, concretely is a kind of pressure-sealing mechanism for deep sea laser packaging shell, and fixed outer thread cylinder is set in the recess of the both ends of cylindrical shell and is equipped with sealing pad;Front cover thread connection first outer thread cylinder, its emission hole is for laser transmission, and inside clamping groove is in turn embedded front sealing ring, reinforced glass and rear sealing ring;When locking, first top block of front cover edge extrudes sealing pad and embeds recess to form multidirectional sealing, and simultaneously, outer thread cylinder compacts rear sealing ring to make reinforced glass uniform stress sealing.Second top block of second outer thread cylinder of rear cover thread connection extrudes sealing pad to form rear end sealing.Rear cover end fixedly connected inner thread cylinder, and built-in sealing ring is in pressure groove;Connecting cylinder is installed by thread, and its pressing plate is embedded in pressure groove and compresses sealing ring to form dynamic sealing, and glue injection cylinder realizes wire to enter back glue injection sealing and replacement;The mechanism significantly improves deep sea high-pressure sealing property and maintainability.

Description

Technical Field

[0001] This utility model relates to the field of deep-sea laser packaging technology, specifically a pressure-resistant sealing mechanism for a deep-sea laser packaging shell. Background Technology

[0002] The pressure-resistant sealing mechanism for deep-sea laser enclosures is a protective device specifically designed for deep-sea environments. Its core function is to ensure the long-term stable operation of the laser in the high-pressure, highly corrosive deep-sea environment. Through a multi-layered sealing structure and a detachable connection design, this mechanism achieves comprehensive sealing protection for the optical components and electrical circuits inside the enclosure, while resisting external water pressure penetration. Since the water pressure in the deep-sea environment can reach tens of megapascals, and there is a risk of salt corrosion, if the laser enclosure is not properly sealed, it will lead to water leakage, short circuits, optical window rupture, or wire failure, which may cause system failure. Therefore, a pressure-resistant sealing mechanism is required.

[0003] However, traditional sealing structures rely on the pressing of a single sealing surface, which is prone to local failure due to stress concentration in the high-pressure environment of the deep sea, making it difficult to guarantee long-term sealing stability. Moreover, existing technologies usually weld the wire interface to the shell for sealing. Once the wire is damaged, the entire interface needs to be destructively removed, resulting in high maintenance costs and the inability to reuse the interface. Utility Model Content

[0004] The purpose of this invention is to provide a pressure-resistant sealing mechanism for a deep-sea laser packaging housing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pressure-resistant sealing mechanism for a deep-sea laser packaging housing includes a cylindrical housing with grooves at its front and rear ends. A first externally threaded cylinder and a second externally threaded cylinder are fixedly installed in the grooves. A first sealing gasket and a second sealing gasket are respectively fitted on the outer sides of the first and second externally threaded cylinders. The first sealing gasket and the second sealing gasket are respectively abutted against the end face of the corresponding groove.

[0007] Preferably, a front cover is threadedly installed on the outer side of the first external threaded cylinder, a laser window is provided on the outer end face of the front cover, and a slot is provided on the edge of the inner end face of the front cover.

[0008] Preferably, a front sealing ring is embedded in the slot, the front sealing ring is covered with tempered glass at the position opposite to the slot, and the tempered glass is covered with a rear sealing ring at the position opposite to the front sealing ring.

[0009] Preferably, a first top block is fixedly installed at the edge of the opening of the front cover. After the first external threaded cylinder is connected to the front cover, the first top block fits against the first sealing gasket, and the first external threaded cylinder fits against the rear sealing ring.

[0010] Preferably, a rear cover is threadedly installed on the outer side of the second external threaded cylinder, and a second top block is fixedly installed at the edge of the opening of the rear cover. After the second external threaded cylinder is connected to the front cover, the second top block fits against the second sealing gasket.

[0011] Preferably, an internally threaded cylinder is fixed through the outer end face of the rear cover, a pressure groove is provided at the opening of the internally threaded cylinder, a sealing ring is covered in the pressure groove, and a connecting cylinder is installed inside the internally threaded cylinder by threads.

[0012] Preferably, a pressure plate is fixedly installed at one end of the connecting cylinder and the internal threaded cylinder. After the internal threaded cylinder is connected to the connecting cylinder, the pressure plate is embedded in the pressure groove and fits against the sealing ring. An injection cylinder is fixedly installed at one end of the pressure plate and the connecting cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. A pressure-resistant sealing mechanism for a deep-sea laser packaging housing, wherein the first and second top blocks actively compress the sealing gasket into the groove when the threads are locked, forming a multi-directional deformation sealing structure, which significantly improves the pressure-resistant sealing reliability of the housing end face and effectively resists the risk of leakage in the high-pressure environment of the deep sea.

[0015] 2. This pressure-resistant sealing mechanism for a deep-sea laser packaging housing achieves convenient maintenance by using a detachable connecting cylinder and a glue injection cylinder in synergistic design. After the wire is inserted, the glue is injected and sealed. When the wire is damaged, there is no need to replace the entire back cover, which greatly reduces the maintenance cost and operational complexity of deep-sea equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall disassembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the front cover of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the back cover of this utility model.

[0020] In the diagram: 101, cylindrical shell; 102, groove; 103, first external threaded cylinder; 104, second external threaded cylinder; 105, first sealing gasket; 106, second sealing gasket; 107, front cover; 108, laser window; 109, slot; 110, front sealing ring; 111, tempered glass; 112, rear sealing ring; 113, first top block; 114, rear cover; 115, second top block; 116, internal threaded cylinder; 117, pressure groove; 118, sealing ring; 119, connecting cylinder; 120, pressure plate; 121, glue injection cylinder. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0023] A pressure-resistant sealing mechanism for a deep-sea laser packaging housing includes a cylindrical housing 101. Grooves 102 are respectively provided at the front and rear ends of the cylindrical housing 101. A first external threaded cylinder 103 and a second external threaded cylinder 104 are respectively fixedly installed in the grooves 102. A first sealing gasket 105 and a second sealing gasket 106 are respectively sleeved on the outside of the first external threaded cylinder 103 and the second external threaded cylinder 104. The first sealing gasket 105 and the second sealing gasket 106 respectively fit against the end face of the corresponding groove 102.

[0024] The above scheme provides the main supporting structure for the laser through a cylindrical shell, accurately positions the external threaded cylinder mounting position through a groove, constructs a detachable threaded interface for the front cover through a first external threaded cylinder, constructs a detachable threaded interface for the rear cover through a second external threaded cylinder, forms a pre-sealing layer on the end face of the groove through a first sealing gasket, and achieves initial sealing by matching the rear groove with a second sealing gasket.

[0025] In this embodiment, preferably, a front cover 107 is threadedly installed on the outer side of the first external threaded cylinder 103. A laser window 108 is provided on the outer end face of the front cover 107, and a slot 109 is provided on the edge of the inner end face of the front cover 107.

[0026] The above solution uses a front cover to seal the front end of the housing and protect the internal optical components, a threaded connection between the front cover and the first external threaded cylinder to achieve quick locking, a laser window to ensure a non-destructive transmission path for the laser beam, and a slot to provide space for the installation of the sealing ring and the tempered glass.

[0027] In this embodiment, preferably, a front sealing ring 110 is embedded in the slot 109, and a reinforced glass 111 is covered at the position opposite to the slot 109 of the front sealing ring 110, and a rear sealing ring 112 is covered at the position opposite to the front sealing ring 110 of the reinforced glass 111.

[0028] The above solution compensates for the assembly gap between the tempered glass and the front cover by using a front sealing ring, uses the tempered glass to resist the high pressure of the deep sea and transmit laser light, and uses a rear sealing ring to balance the pressure distribution on both sides of the tempered glass.

[0029] In this embodiment, preferably, a first top block 113 is fixedly installed at the edge of the opening of the front cover 107. After the first external threaded cylinder 103 is connected to the front cover 107, the first top block 113 fits against the first sealing gasket 105, and the first external threaded cylinder 103 fits against the rear sealing ring 112.

[0030] The above scheme uses the first top block to squeeze the first sealing gasket to fill the groove when the thread is tightened, the inclined surface design of the first top block triggers the multi-directional deformation of the sealing gasket, and the first external threaded cylinder directly abuts against the rear sealing ring and links the front sealing ring, so that the tempered glass obtains uniform sealing pressure.

[0031] In this embodiment, preferably, a rear cover 114 is threadedly installed on the outer side of the second external threaded cylinder 104, and a second top block 115 is fixedly installed on the edge of the opening of the rear cover 114. After the second external threaded cylinder 104 is connected to the front cover 107, the second top block 115 fits against the second sealing gasket 106.

[0032] The above scheme uses a rear cover to seal the rear end of the housing and support the internal components. A sealing base is established by connecting the rear cover to the second external threaded cylinder. The second top block actively presses the second sealing gasket into the groove, forming a rear end seal that can withstand pressure differential.

[0033] In this embodiment, preferably, an internally threaded cylinder 116 is fixed through the outer end face of the rear cover 114, a pressure groove 117 is provided at the opening of the internally threaded cylinder 116, a sealing ring 118 is covered in the pressure groove 117, and a connecting cylinder 119 is installed inside the internally threaded cylinder 116 by threads.

[0034] The above solution expands the wire interface function of the rear cover by using an internal threaded cylinder, restricts the displacement of the sealing ring and forms a compression cavity by using a pressure groove, fills the thread assembly gap by using a sealing ring, and achieves a detachable sealing channel by connecting the internal threaded cylinder with a connecting cylinder threadedly.

[0035] In this embodiment, preferably, a pressure plate 120 is fixedly installed at one end of the connecting cylinder 119 and the internal threaded cylinder 116. After the internal threaded cylinder 116 is connected to the connecting cylinder 119, the pressure plate 120 is embedded in the pressure groove 117 and fits against the sealing ring 118. A glue injection cylinder 121 is fixedly installed at one end of the pressure plate 120 and the connecting cylinder 119.

[0036] The above solution uses a pressure plate to embed a groove and compress the sealing ring when the thread is tightened. The planar design of the pressure plate ensures that the sealing ring deforms evenly. The glue injection cylinder provides a channel for the wire to pass through and a glue injection cavity, thus achieving circumferential sealing and maintainability of the wire.

[0037] In this embodiment, a pressure-resistant sealing mechanism for a deep-sea laser packaging housing is used. The cylindrical housing 101 has grooves 102 at both ends. First and second externally threaded cylinders 104 are fixedly installed within the grooves 102. A sealing gasket is fitted onto the outer side of each externally threaded cylinder, ensuring the gasket fits against the end face of the groove 102, thus laying the foundation for subsequent sealing. A front cover 107 is threaded onto the first externally threaded cylinder 103. Its opening edge has a first top block 113. After the threaded connection is completed, the first top block 113 firmly presses the sealing gasket into the groove 102, causing the sealing gasket to deform and form a multi-faceted sealing surface. Effectively dispersing pressure and enhancing the sealing of the front end of the shell, it can resist leakage under high pressure in the deep sea; at the same time, the inner end face of the front cover 107 has a groove 109, which is embedded in the front sealing ring 110 and the tempered glass 111. The first external threaded cylinder 103 directly presses the rear sealing ring 112, so that the front and rear sealing rings 112 are subjected to force at the same time, tightly clamping the tempered glass 111 in the groove 109, producing a uniform compression seal, preventing moisture from entering the glass edge and ensuring stability during laser transmission; the rear cover 114 is installed on the second external threaded cylinder 104 in a similar manner by threads, and the rear cover 114 has an opening. The second top block 115 at the edge directly compresses the corresponding sealing gasket during threaded connection, causing the sealing gasket to form a multi-faceted sealing structure within the groove 102, thus improving the watertight pressure resistance of the rear end of the housing. An internally threaded cylinder 116 is fixedly installed on the outer end face of the rear cover 114. A pressure groove 117 is provided at the opening of the internally threaded cylinder 116, and a sealing ring 118 is covered within the pressure groove 117. A connecting cylinder 119 is threadedly installed within the internally threaded cylinder 116. A pressure plate 120 is fixed to the end of the connecting cylinder 119. After threaded connection, the pressure plate 120 is fully embedded in the pressure groove 117 and presses the sealing ring 118, forming a multi-faceted dynamic seal. To adapt to high pressure changes and prevent moisture from seeping in along the threaded path, the other end of the connecting cylinder 119 is equipped with a glue injection cylinder 121. During use, the wire is inserted into the housing through the glue injection cylinder 121, and then sealant is injected. The glue fills the space around the wire to achieve an airtight seal, greatly simplifying the waterproofing of external wiring. If maintenance is required or the wire is damaged, simply unscrew the connecting cylinder 119 for replacement, avoiding the need to disassemble the entire structure and reducing maintenance difficulty and cost. The entire mechanism achieves a comprehensive pressure-resistant seal between the front laser window 108 and the rear wire through the synergistic action of its components, ensuring the long-term reliable operation of the laser in deep-sea environments.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant sealing mechanism for a deep-sea laser packaging housing, comprising a cylindrical housing (101), characterized in that: The cylindrical shell (101) has grooves (102) at its front and rear ends respectively. A first external threaded cylinder (103) and a second external threaded cylinder (104) are fixedly installed in the grooves (102). A first sealing gasket (105) and a second sealing gasket (106) are respectively sleeved on the outside of the first external threaded cylinder (103) and the second external threaded cylinder (104). The first sealing gasket (105) and the second sealing gasket (106) are respectively in contact with the end face of the corresponding groove (102).

2. The pressure-resistant sealing mechanism for a deep-sea laser packaging housing according to claim 1, characterized in that: The first external threaded cylinder (103) is threadedly fitted with a front cover (107). A laser window (108) is provided on the outer end face of the front cover (107), and a slot (109) is provided on the edge of the inner end face of the front cover (107).

3. The pressure-resistant sealing mechanism for a deep-sea laser packaging housing according to claim 2, characterized in that: A front sealing ring (110) is embedded in the slot (109). The front sealing ring (110) is covered with tempered glass (111) at the position opposite to the slot (109). The tempered glass (111) is covered with a rear sealing ring (112) at the position opposite to the front sealing ring (110).

4. The pressure-resistant sealing mechanism for a deep-sea laser packaging housing according to claim 3, characterized in that: A first top block (113) is fixedly installed at the edge of the opening of the front cover (107). After the first external threaded cylinder (103) is connected to the front cover (107), the first top block (113) fits against the first sealing gasket (105), and the first external threaded cylinder (103) fits against the rear sealing ring (112).

5. The pressure-resistant sealing mechanism for a deep-sea laser packaging housing according to claim 1, characterized in that: The second external threaded cylinder (104) is threadedly fitted with a rear cover (114), and a second top block (115) is fixedly installed at the edge of the opening of the rear cover (114). After the second external threaded cylinder (104) is connected to the front cover (107), the second top block (115) fits against the second sealing gasket (106).

6. The pressure-resistant sealing mechanism for a deep-sea laser packaging housing according to claim 5, characterized in that: An internally threaded cylinder (116) is fixed through the outer end face of the rear cover (114). A pressure groove (117) is provided at the opening of the internally threaded cylinder (116). A sealing ring (118) is covered in the pressure groove (117). A connecting cylinder (119) is installed inside the internally threaded cylinder (116) by means of threads.

7. The pressure-resistant sealing mechanism for a deep-sea laser packaging housing according to claim 6, characterized in that: A pressure plate (120) is fixedly installed at one end of the connecting cylinder (119) and the internal threaded cylinder (116). After the internal threaded cylinder (116) is connected to the connecting cylinder (119), the pressure plate (120) is embedded in the pressure groove (117) and fits against the sealing ring (118). A glue injection cylinder (121) is fixedly installed at one end of the pressure plate (120) and the connecting cylinder (119).

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