TWM644432U - Watertight and fixing structure for underwater airtight compartment - Google Patents

Abstract

A watertight structure of an underwater airtight cabin. A cover is arranged on the opening of the cabin body. The cover has a flange and a cover connected to the flange. A plurality of O-rings are arranged on the periphery of the flange to match the The opening extends to the inner wall of the chamber to form a seal; wherein, an outer plug ring groove and an inner plug ring groove corresponding to each other are respectively formed between the periphery of the flange and the inner wall of the opening of the cabin body, the cabin The cavity wall of the body is provided with a gap communicating with the inner plug ring groove; accordingly, a plug is inserted between the inner plug ring groove and the outer plug ring groove along the gap and contacts The surface of the ring groove of the inner plug strip and the ring groove of the outer plug strip form a tight fit, and at the same time fix the cover and the cabin body to each other.

Description

Watertight and fixed structure of underwater airtight cabin

This creation involves the watertight structure used in the underwater sealed cabin, especially the watertight and fixed structure that can be disassembled quickly, improves the waterproof effect, and has a long service life.

The underwater airtight cabin is an equipment used to waterproof and seal objects, components, instruments or equipment, etc. and provide them for use in the underwater environment. For example, for an underwater propeller used in diving activities, the battery must be arranged in a waterproof airtight cabin, and then the battery must be electrically connected to an underwater motor provided with a propeller outside the airtight cabin.

The known underwater sealed cabin structure for submersible thrusters is that the cabin is provided with a chamber for disposing batteries, at least one end of the cabin is formed with an opening communicating with the chamber, and the opening is provided with a cover; that is, The inner diameter of the opening is formed with an internal thread, and the periphery of the flange of the cover is formed with an external thread, and a plurality of O-rings are arranged on the periphery of the flange, and the external thread of the cover is matched with the internal thread. The flange is locked into the opening, and at the same time, the O-rings are pressed to form a seal between the flange and the inner wall of the opening; that is, the known underwater airtight cabin provides a waterproof function entirely through the O-ring.

It is undeniable that the O-ring does provide a certain degree of waterproof function for the horizontal airtight cabin. However, as the diver dives deeper, the water pressure on the airtight cabin increases. When the water pressure reaches a certain level, the O-ring Easily deformed, resulting in water seepage problems. In addition, the conventional horizontal airtight cabin must lock or loosen the matching external thread and internal thread when assembling or disassembling, so that after repeated disassembly and assembly, it is easy to cause thread wear and affect the waterproof effect. Its service life is short.

The purpose of this creation is to provide a watertight and fixed structure of an underwater airtight cabin that can be disassembled quickly, has a better waterproof effect, and has a longer service life.

The invention provides a watertight structure of an underwater airtight cabin, comprising: a cabin body with a cavity, at least one end of the cabin body is formed with an opening communicating with the cavity; and a cover with a flange and a cover connected to the flange part, the periphery of the flange is provided with a plurality of O-rings, the flange is matched to the inner wall of the opening, and a seal is formed by the O-rings; wherein, the periphery of the flange is formed adjacent to the cover There is an outer plug ring groove; the inner wall of the opening is formed with an inner plug ring groove corresponding to the outer plug ring groove, and a wall connected to the inner plug ring groove is provided on the wall of the cabin body. a notch; and a tamp, inserted between the inner tamp ring groove and the outer tamp ring groove along the notch and contacting the surfaces of the inner tamp ring groove and the outer tamp ring groove to form adaptation. With the structure that the tampon is inserted between the inner tampon ring groove and the outer tampon ring groove, the cover and the cabin body can be locked and fixed to each other so that they cannot be separated from each other, and the tampon can be quickly removed. After pulling out between the inner plug ring groove and the outer plug ring groove, the cover and the cabin body will be separated; in addition, the plug is tightly arranged on the flange outside the O-ring, which can effectively Blocking water pressure acting directly on the O-ring causes the O-ring to deform and cause water seepage.

In another embodiment of the present invention, the opening, the cover and the plug can be provided at opposite ends of the capsule.

Preferably, the outer diameter of the tampon is circular, and a circular inner diameter corresponding to the outer diameter of the tampon is formed between the inner tampon ring groove and the outer tampon ring groove. With this structure, the tampon can hold the inner tampon ring groove and the outer tampon ring groove at the same time to prevent the cover and the cabin from being separated, and the tampon can closely contact the inner tampon ring groove and the outer tampon ring groove. The outer tampon rings the inner surface of the groove for further waterproofing.

In an embodiment of the invention, the tampon can be made of plastic material. Thereby, the tampon has proper elasticity and flexibility, so that it can be smoothly inserted between the ring-shaped inner tampon ring groove and the outer tampon ring groove.

Preferably, a bent portion can be formed at one end of the tampon. With this structure, when the tampon is inserted between the inner tampon ring groove and the outer tampon ring groove, a gap is exposed at the bent part, which is convenient for quickly removing the tampon when the cover and the cabin need to be separated. pull out.

Preferably, the bent portion can be provided with a gripping head. With the large-volume gripping head, the bent portion can be grasped quickly and stably to pull out the tampon.

In order to facilitate understanding of the invention, the invention will be described in detail below in conjunction with the accompanying drawings and embodiments. Some, but not all, embodiments of the invention are shown in the drawings. The invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Based on the embodiments in this creation, all other embodiments obtained by persons of ordinary skill in the art without making progressive efforts all belong to the scope of protection of this creation.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art of this invention. The terminology used in the description of the creation is only for the purpose of describing specific embodiments, and is not intended to limit the creation.

As shown in Figure 1, the underwater sealed cabin provided by this creation has a circular tubular cabin body 10, and the opposite ends of the cabin body 10 are closed with covers 12A and 12B respectively, and the cover 12A is provided with a propeller for setting. The connector 20 electrically connected to the underwater motor (not shown in the figure).

As shown in FIG. 1 and FIG. 2, the cabin body 10 has a chamber 100, the opposite ends of the cabin body 10 are respectively formed with openings 101A and 101B communicating with the chamber 100, and the side walls of the openings 101A and 101B are respectively provided with gaps 102A , 102B; the inner walls of the openings 101A, 101B are formed with inner plug ring grooves 103A, 103B around the circumference. The radial cross-section of the openings 101A and 101B have the same structure.

Covers 12A, 12B are respectively used to seal the openings 101A, 101B after the battery 22 (as shown in FIGS. 3 and 4 ) and/or other components are disposed in the chamber 100 of the cabin 10, and the cover 12A It has basically the same structure as 12B, except that the cover 12A is further provided with a connector 20 for electrical connection with the underwater motor (the combined structure of the cover 12B and the opening 101B is omitted in FIG. 4 ). Among them, the cover 12A, 12B respectively has flanges 121A, 121B and cover parts 120A, 120B that are integrally connected, and the outer diameter of the cover parts 120A, 120B is larger than the outer diameter of the flanges 121A, 121B. A plurality of O-ring grooves 122A, 122B are respectively formed on the peripheral wall surface of the flange. For example, in the embodiment shown in FIG. Each O-ring groove 122A, 122B is respectively equipped with an O-ring 14A, 14B; in addition, an O-ring groove 122A, 122B closest to the cover portion 120A, 120B is formed at an appropriate position between the cover portion 120A, 120B. An outer tampon ring groove 123A, 123B, the outer tampon ring groove 123A, 123B has a semicircular cross section in the radial direction of the flange 121A, 121B. When the covers 12A, 12B are respectively matched to the inner walls of the openings 101A, 101B by their flanges 121A, 121B, the O-rings 14A, 14B are pressed to form a seal on the inner walls of the openings 101A, 101B. At the same time, the inner plug ring grooves 103A, 103B correspond to the outer plug ring grooves 123A, 123B in the radial direction, so that the radially semicircular inner plug ring grooves 103A, 103B correspond to the outer ring grooves 123A, 123B respectively. The plug ring grooves 123A, 123B form a circle in the radial direction, and the inner plug ring grooves 103A, 103B and the outer plug ring grooves 123A, 123B also correspond to the notches 102A, 123B provided in the cabin body 10 in the radial direction. 102B.

The invention further provides tampons 16A, 16B for matching between the inner tampon ring grooves 103A, 103B and the outer tampon ring grooves 123A, 123B; preferably, the tampons 16A, 16B can be made of plastic materials , and the outer diameter is formed into a circle, so that the tampons 16A, 16B have appropriate elasticity and flexibility; The inner diameter of the circle formed therebetween is the outer diameter of the circle corresponding to the tampons 16A, 16B. When the cover 12A, 12B inserts its flanges 121A, 121B into the openings 101A, 101B respectively and the cover portions 120A, 120B cover the ends of the openings 101A, 101B respectively, further insert the plugs 16A, 16B through the gaps 102A, 102B penetrates between the inner tampon ring grooves 103A, 103B and the outer tampon ring grooves 123A, 123B, thereby, the tampons 16A, 16B respectively block the inner tampon ring grooves 103A, 103B and the outer tampon ring grooves between the ring grooves 123A, 123B to prevent the openings 101A, 101B at both ends of the cover 12A, 12B and the cabin body 10 from detaching, and the plugs 16A, 16B can closely contact the inner plug ring grooves 103A, 103B and the outer plug The inner surface of the ring groove 123A, 123B to produce further waterproof effect (as shown in Figure 4 and Figure 6); When it is large, the water pressure can be blocked by the plugs 16A, 16B which are located on the outermost side and are harder than the O-rings 14A, 14B, so as to prevent the O-rings 14A, 14B from being deformed under high water pressure, so that the underwater airtight cabin can be lifted Excellent anti-leakage sealing effect.

In the preferred embodiment of this creation, a bent portion 161A, 161B can be formed at one end of the plug strip 16A, 16B, so that when the plug strip 16A, 16B is inserted into the inner plug ring groove 103A, 103B and the outer plug ring groove Between the slots 123A, 123B, the bent portions 161A, 161B are exposed to the notches 102A, 102B, so that the plugs 16A, 16B can be pulled out quickly when the covers 12A, 12B and the cabin body 10 need to be separated. Even, this invention can also use larger gripping heads 18A, 18B on the bending parts 161A, 161B, so that the user's fingers can quickly and stably hold the bending parts to extract the tampon 16A, 16B.

More specifically, after the flanges 121A, 121B of the caps 12A, 12B are inserted into the openings 101A, 101B respectively, the ends 162A, 162B of one end of the plug strips 16A, 16B are respectively passed through the notches 102A, 102B along the plugs. between the inner tampon ring grooves 103A, 103B and the outer tampon ring grooves 123A, 123B and contact the surfaces of the inner tampon ring grooves 103A, 103B and the outer tampon ring grooves 123A, 123B to form a tight fit ; With the structure that the plug 16A, 16B is inserted into the inner plug ring groove 103A, 103B and the outer plug ring groove 123A, 123B, the plug 16A, 16B can cover the cover 12A, 12B and the cabin body 10 They are clamped and fixed to each other and cannot be separated from each other, and the plugs 16A, 16B are tightly arranged on the flanges 121A, 121B outside the O-rings 14A, 14B, which can effectively prevent water pressure from directly acting on the O-ring 14A. , 14B lead to deformation and seepage.

As shown in Figures 5 and 7, when the battery 22 in the cabin body 10 needs to be charged, replaced, or other components need to be repaired and the covers 12A, 12B need to be opened, the plugs 16A, 16B can be quickly pulled out Between the inner plug ring grooves 103A, 103B and the outer plug ring grooves 123A, 123B, there is no tampon 16A between the inner plug ring grooves 103A, 103B and the outer plug ring grooves 123A, 123B. , 16B are stuck, so the cover 12A, 12B and the cabin body 10 can be disengaged.

In the aforementioned embodiment of the present invention, openings 101A, 101B, covers 12A, 12B, and plugs 16A, 16B are provided at opposite ends of the cabin body 10 . However, in another embodiment, only one end of the cabin body 10 may be provided with an opening cover and a plug, and the opposite end of the cabin body is closed.

With the watertight structure of the underwater airtight cabin provided by the aforementioned invention, it is not necessary to carry out tapping processing on the cabin body and the cover as in conventional identical or similar products, and the cover must be connected with the cover when assembling or disassembling. The matching external thread and internal thread of the cabin body are locked or loosened, causing the thread to wear easily and affect the waterproof effect; on the contrary, this creation provides an underwater waterproof device that can be quickly disassembled, has better waterproof effect, and has a longer service life. The watertight and fixed structure of the airtight compartment.

The above-mentioned embodiments only express the preferred implementation mode of the creation, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the creation. It should be noted that those skilled in the art can make some changes and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

10: Cabin 100: chamber 101A, 101B: opening 102A, 102B: Gap 103A, 103B: inner plug ring groove 12A, 12B: cover 120A, 120B: cover part 121A, 121B: flange 122A, 122B: O-ring groove 123A, 123B: Outer plug strip ring groove 14A, 14B: O-ring 16A, 16B: plug 161A, 161B: bending part 162A, 162B: ends 18A, 18B: holding head 20: Connector 22: battery

Figure 1 is a three-dimensional schematic diagram showing the appearance and structure of the underwater airtight cabin of this creation; Fig. 2 is a three-dimensional exploded schematic diagram showing the composition relationship of the main components of the underwater airtight cabin of the present invention; Fig. 3 is a planar sectional schematic diagram showing the overall structure of the underwater airtight cabin of the present invention; Fig. 4 is a partial enlarged view of Fig. 3, showing that the cover is combined with the cabin body and inserted into the tampon for fixing; Fig. 5 is a partial plane sectional view showing that the cover and the cabin are separated after the tampon in Fig. 4 is pulled out; Fig. 6 is a partial three-dimensional sectional view showing that the cover of the underwater airtight cabin of the present invention is combined in the cabin body and inserted into a tampon to fix it; Fig. 7 is a perspective sectional view showing that the cover and the capsule are separated after the tampon in Fig. 6 is pulled out.

10: Cabin

100: chamber

103A: Inner plug ring groove

12A: Cover

121A: Flange

123A: Outer plug ring groove

14A: O-ring

16A: Tampon

161A: bending part

18A: Grip head

20: Connector

Claims (6)

A watertight structure of an underwater airtight cabin, comprising: a chamber having a chamber, at least one end of the chamber is formed with an opening communicating with the chamber; and The cover has a flange and a cover portion connected to the flange. A plurality of O-rings are arranged on the periphery of the flange. The flange is matched with the inner wall of the opening, and through the O-rings form a seal; It is characterized by: An outer plug ring groove is formed on the periphery of the flange adjacent to the cover; An inner tamp ring groove corresponding to the outer tamp ring groove is formed on the inner wall of the opening, and a notch connected to the inner tamp ring groove is provided on the wall of the cabin body; and A tampon, inserted between the inner tampon ring groove and the outer tampon ring groove along the gap and contacting the surface of the inner tampon ring groove and the outer tampon ring groove to form a tight fit . The watertight structure of the underwater airtight cabin according to Claim 1, wherein the opening, the cover and the plug are provided at opposite ends of the cabin. The watertight structure of the underwater airtight cabin according to claim 1 or 2, wherein the outer diameter of the plug is circular, and the ring groove of the inner plug ring and the ring groove of the outer plug ring are formed as opposite The inner diameter of the circle should be the outer diameter of the tampon. The watertight structure of the underwater airtight cabin according to claim 1 or 2, wherein the plug is made of plastic material. The watertight structure of the underwater airtight cabin according to Claim 4, wherein a bent portion is formed at one end of the plug. The watertight structure of the underwater airtight cabin according to claim 5, wherein the bending portion is provided with a gripping head.