Sealing joint device suitable for underwater observation equipment cable connection

Abstract

A sealing joint device suitable for underwater observation equipment cable connection comprises a sealing pipe main body, a sealing pipe joint and an internal connection structure which are connected and matched with each other. The sealing pipe body is a hollow pipe, and inner screw thread parts are arranged at the two ends of the sealing pipe body to form a middle pipe cavity and a pipe wall. The sealing pipe joint is formed by connecting and matching an end cover and a sealing ring; the internal connection structure is composed of a fixed connection part, a sealing sleeve of an internal wire, a sealing sleeve of an external cable and an additional sealing structure, and the internal connection structure connects corresponding wires in the to-be-connected cables on the two sides together through the fixed connection part. The sealing sleeve of the internal electric wire and the sealing sleeve of the external cable respectively seal the internal electric wire and the external cable, and the additional sealing structure is arranged outside the internal electric wire and the external cable. Compared with the prior art, through the sealing pipe main body, the sealing pipe joint and the internal connection structure, the purposes of pressure resistance and sealing waterproof of cable connection of underwater observation equipment can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to underwater sealing connection technical field of cable, relates to underwater sealing connection structure of underwater observation equipment cable in water transport engineering, port engineering. BACKGROUND

[0002] In water transport engineering, port engineering, for underwater sealing connection of underwater observation equipment cable, the traditional method is generally to peel off the outer skin of the connecting end of two cables needing to be connected, and then peel off the internal copper wire of each color butt joint wire of the connecting end, weld the internal copper wire of each color butt joint wire one by one, seal the internal copper wire of each color of the wire with electrician's adhesive tape or heat shrink seal sleeve, and then seal the outer cable skin with the same method. The limitations of this method include:

[0003] 1. Poor mechanical strength, the tensile strength of the material at the connection part is obviously lower than that of the original cable material, and the connection part is easy to break under the action of external forces such as stacking load;

[0004] 2. Poor sealing performance, since sealing is only achieved by the shrinkage of electrician's adhesive tape or heat shrink seal sleeve, the electrician's adhesive tape will soon be permeated by water under the strong osmotic pressure underwater, the heat shrink seal sleeve is slightly better, but it is also easy to be permeated by water after a period of time, and because it is made of plastic material, it is easy to be damaged by the friction of gravel and sand at the bottom of the water, resulting in reduced sealing effect;

[0005] 3. Poor operation standardization on the construction site, the copper wire welding, electrician's adhesive tape winding or heat shrink seal sleeve heating and sealing on the construction site are all operated by experience, and if one operation is improper, the sealing effect will be greatly reduced. INVENTION CONTENTS

[0006] The utility model aims at providing a sealing joint device suitable for the connection of underwater observation equipment cable to overcome the above-mentioned shortcomings and deficiencies existing in the prior art.

[0007] The technical scheme adopted by the utility model is as follows:

[0008] A sealing joint device suitable for the connection of underwater observation equipment cable, comprising a sealing pipe main body, a sealing pipe joint and an internal connection structure connected and matched with each other, wherein the sealing pipe main body is a hollow pipe material, both ends of which are provided with internal thread parts to form a middle pipe cavity and a pipe wall; the sealing pipe joint is composed of a cover and a sealing ring connected and matched with each other; the internal connection structure is composed of a fixed connection, a sealing sleeve of internal wires, a sealing sleeve of external cables and an additional sealing structure, the internal connection structure connects the corresponding wires inside the cables to be connected on both sides together through the fixed connection, the sealing sleeves of internal wires and external cables seal the internal wires and external cables respectively, and the additional sealing structure is further arranged outside.

[0009] Two cables to be connected, the left end cable passes through a sealing pipe joint, rubber ring and sealing pipe body, the right end cable passes through a sealing pipe joint, rubber ring;

[0010] The end of the cable to be connected is sleeved with a hot melt sealing sleeve of the internal colored copper wire and a hot melt sealing sleeve of the external cable, the internal copper wire of each color is welded one by one, the hot melt sealing sleeve is withdrawn to the welding position, and the hot melt sealing sleeve is withdrawn to the cable outer skin position; the length of the cable welding and hot melt sealing section is less than the length L2 of the sealing pipe body;

[0011] The sealing pipe body on the left end cable is withdrawn to the welding and hot melt wrapping position of the cable, and is located in the center of the sealing pipe body, the rubber ring is inserted into the left end internal thread of the sealing pipe body, the end cover of the left end sealing pipe joint is tightly closed, the epoxy resin liquid is in the stainless steel pipe body in the sealing pipe body, the connection position of the cable is immersed, and the rubber ring and the sealing pipe joint of the right end of the cable are tightly closed.

[0012] Optionally, the internal connection structure is composed of welding connection, internal wire copper hot melt sealing sleeve, external cable hot melt sealing sleeve and epoxy resin, and the internal connection structure connects the corresponding internal wire copper of the two cables to be connected together through welding connection.

[0013] Optionally, the length and outer diameter of the sealing pipe body are 200mm-300mm and 25mm-35mm respectively.

[0014] Optionally, the length and inner diameter of the internal thread portion at both ends are 20mm-25mm.

[0015] Optionally, the inner diameter of the middle tube cavity is smaller than that of the internal thread portion at both ends, and is 12mm-15mm.

[0016] Optionally, the thickness of the pipe wall of the sealing pipe body is 6-8mm, and the thickness of the pipe wall of the thread portion at both ends is 2-4mm.

[0017] Optionally, the section of the end cover of the sealing pipe joint is hexagonal or square, and the distance between the opposite sides is slightly larger than the outer diameter of the sealing pipe body.

[0018] Optionally, the other end of the end cover is a metal spiral, which is a spiral thread completely matched with the internal thread at both ends of the sealing pipe body, and the length and outer diameter are 20mm-25mm.

[0019] Optionally, the thickness of the rubber ring is 5mm-7mm, the outer diameter is 20mm-23mm, it is hollow, and the hole diameter is 6mm-12mm.

[0020] A kind of sealing joint device suitable for underwater observation equipment cable connection includes: sealing pipe body, sealing pipe joint, internal connection structure three parts;Wherein, sealing pipe body includes: metal pipe body, two end internal thread, middle tube cavity, pipe wall;Sealing pipe joint includes: rubber ring, end cap;Internal connection structure includes: welding connection, hot melt sealing sleeve, epoxy resin triple connection and sealing.

[0021] The metal pipe body of sealing pipe body is made of stainless steel pipe material or other high-strength corrosion-resistant metal pipe material, its length and outer diameter are generally 200mm-300mm, 25mm-35mm;The length and inner diameter of internal thread of two ends are generally 20mm-25mm;The inner diameter of tube cavity of pipe body is generally less than the inner diameter of internal thread part of two ends, generally 12mm-15mm.The thickness of pipe wall of sealing pipe body is generally 6-8mm, the thickness of pipe wall of internal thread part of two ends is generally 2-4mm.

[0022] The section of one end of end cap of sealing pipe joint can be hexagonal or square, the purpose of using this shape is to facilitate the use of wrench to rotate and tighten, the distance of opposite sides of hexagonal or square is generally slightly larger than the outer diameter of sealing pipe body;The end cap of sealing pipe joint is hollow, the hole diameter is about 6mm-12mm, to facilitate the cable to pass through;The other end of end cap is metal spiral, the spiral is completely matched with internal thread of two ends of sealing pipe body, its length and outer diameter are about 20mm-25mm;The thickness of rubber ring is about 5mm-7mm, the outer diameter is about 20mm-23mm, hollow, hole diameter is about 6mm-12mm, to facilitate the cable to pass through, the rubber ring is flattened and expanded after being pressed under the pressure of tightening end cap, the peripheral pores are filled, to prevent leakage, and has strong aging resistance.

[0023] First, two cables to be connected, the outer skin of the connection end is stripped, and then the inner copper wire of each color of the connection end is stripped, and the end cap, rubber ring and sealing pipe body are sequentially threaded on the left end cable, and the end cap, rubber ring are sequentially threaded on the right end cable; second, after the above preparation is completed, the heat shrinkable sealing sleeve matching the outer diameter of each copper wire is sleeved on the outer skin of the cable and the outer cable, the inner copper wire of each color of the matched cable is welded one by one, and then the heat shrinkable sealing sleeve is retracted to the welding position, and the electric hair dryer is used to shrink and seal the inner copper wire of each color, and then the outer cable skin is sealed in the same way, at this time, the two cables to be connected are preliminarily welded and heat shrinkable sealed, and the length of the cable welding and heat shrinkable sealing section is less than the length of the sealing pipe body, and the outer diameter of the welding section is slightly smaller than the diameter of the middle pipe cavity of the sealing pipe body; third, the sealing pipe body on the left end cable is retracted to the welding and heat shrinkable wrapping position of the cable, and then the rubber ring is inserted into the left end internal thread of the sealing pipe body, and then the end cap of the left end sealing pipe joint is tightened with a wrench, and the rubber ring is compressed and expanded to hold the cable skin to achieve sealing effect, but the tightening force should not be too large. After the left end of the sealing pipe body is sealed, the left end is downward, the right end is upright, the prepared epoxy resin liquid is sucked into the stainless steel pipe body in the sealing pipe body, and the cable connection part is immersed after the epoxy resin liquid is filled, and then the rubber ring and the sealing pipe joint of the right end cable are tightened according to the above method. In this way, the whole sealing process is completed, and through the three steps, the pressure resistance and sealing waterproof of the cable connection of the underwater observation equipment are realized.

[0024] Due to the adoption of the above technical scheme, the beneficial effects of the present application include: by providing a sealing joint device suitable for cable connection of underwater observation equipment, the pressure resistance and sealing waterproof of the cable connection of the underwater observation equipment can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following drawings are provided for display:

[0026] Figure 1 It is a side view schematic diagram of the sealing pipe body embodiment of the present application.

[0027] Figure 2 It is a side view schematic diagram of the sealing pipe joint embodiment of the present application.

[0028] Figure 3 It is a side view schematic diagram of the internal connection structure embodiment of the present application.

[0029] Figure 4 It is a side view schematic diagram of the whole connection embodiment of the sealing pipe body, the sealing pipe joint and the internal connection structure of the present application.

[0030] Fig.:

[0031] 100-sealing tube main body; 110-internal thread at both ends; 120-central tube cavity; 130-tube wall; 200-sealing tube joint; 210-end cap; 220-rubber ring; 300-internal connection structure; 310-welded connection; 320-hot melt sealing sleeve of internal colored wire copper wire; 330-hot melt sealing sleeve of external cable; 340-epoxy resin; 350-cable to be connected.

[0032] It should be noted that the above-mentioned drawings only show some embodiments of the present application, and for those skilled in the art, other embodiments of the drawings can be obtained from these drawings without creative labor. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that: the specific examples described here are only used to explain the present application, and are not used to limit the present application.

[0034] For the convenience of description, spatial relative terms will be used when necessary, such as "under", "below", "lower", "above", "upper" and the like, to describe the relationship of one element or feature shown in the drawings relative to another element or feature. The spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, if the device in the drawing is turned over, the element described as "under" or "below" the other element or feature will be oriented "above" the other element or feature.

[0035] Unless otherwise defined, the terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs, and the terms should be understood to have meanings consistent with the meanings in the context of the relevant art, and should not be understood in an idealized or overly formalized manner, except as expressly defined by the present application.

[0036] Example 1

[0037] Figure 1 、 Figure 2 、 Figure 3 Respectively, the side view schematic diagram of the sealing tube main body, the sealing tube joint and the internal connection structure of the present application. Figure 4 It is a side view schematic diagram of the whole connection of the sealing tube main body, the sealing tube joint and the internal connection structure.

[0038] As Figures 1 to 4As shown, a sealing joint device suitable for underwater observation equipment cable connection includes: a sealing pipe body 100, a sealing pipe joint 200, an internal connection structure 300. The sealing pipe body 100 is a hollow high-strength corrosion-resistant metal pipe, both ends of which are threaded with internal thread parts 110 to form a middle pipe cavity 120 and a pipe wall 130; the sealing pipe joint 200 is composed of an end cap 210 and a rubber ring 230; the internal connection structure 300 is composed of a welded connection 310, a hot melt sealing sleeve 320 of internal wires of various colors, a hot melt sealing sleeve 330 of external cables, an epoxy resin 340, and a cable to be connected 350.

[0039] As shown, Figure 1 The sealing pipe body 100 is made of high-strength corrosion-resistant metal pipe, the length L = 2L1 + L2 and the outer diameter D = 2D1 + D2 or D = 2D3 + D4 are generally 200mm-300mm, 25mm-35mm; the length L1 and the inner diameter D2 of the internal thread part 110 at both ends are generally 20mm-25mm, and the pipe wall thickness D1 of the thread part at both ends is generally 2-4mm; the inner diameter D4 of the middle pipe cavity 120 is generally smaller than the inner diameter D2 of the internal thread part 110 at both ends, and is generally 12mm-15mm; the thickness D3 of the pipe wall 130 in the middle of the sealing pipe body 100 is generally 6-8mm.

[0040] As shown, Figure 2 The cross section of the end cap 210 of the sealing pipe joint 200 can be hexagonal or square, and the distance between the opposite sides of the hexagon or square is generally slightly larger than the outer diameter of the sealing pipe body, and there is a circular hole with a diameter of R1 in the middle, which is for the cable to be connected to pass through; the other end of the end cap 210 is a metal spiral, which is a spiral thread that perfectly matches the internal thread at both ends of the sealing pipe body, with a length and outer diameter of about 20mm-25mm; the spiral part is actually a lathe-turned part that can be completely screwed into the external thread of the internal thread part 110 at both ends of the sealing pipe body 100, and perfectly matches the internal thread part 110, with a length L3 slightly smaller than the length L1 of the internal thread part 110, leaving room for the deformation of the rubber ring 220; the thickness B of the rubber ring 220 is about 5mm-7mm, and the outer diameter R4 is about 20mm-23mm, and the diameter R3 of the hole in the middle is slightly larger than the diameter R1 of the hole in the middle of the end cap 210, with a diameter of about 6mm-12mm, for the cable to be connected to pass through; the rubber ring 220 is flattened and then expanded outward under the pressure of the tightened end cap during the screwing-in process, filling the peripheral pores and preventing leakage, with strong anti-aging ability.

[0041] As shown, Figure 3As shown, the internal connection structure 300 is to strip the outer skin of the two cables 350 to be connected to expose the internal colored copper wire, and to weld the corresponding colored copper wire inside the two cables 350 to be connected to perform the first process welding connection 310. After completion, the hot melt sealing sleeve 320 of the internal colored wire copper wire on the colored copper wire of one side is pushed to the appropriate position for hot melt sealing, which is the second process. After the hot melt sealing of all colored copper wire, the hot melt sealing sleeve 330 of the external cable on one side is pushed to the appropriate position for hot melt sealing of the cable skin, which is the third process. Then, after the sealing tube body 100, the sealing tube joint 200 and the rubber ring 220 on one side are pushed to the appropriate position and tightened, the epoxy resin 340 is poured for sealing, and the other side sealing tube joint 200 is finally closed, which is the fourth process. The four processes are the steps required to complete the internal connection structure 300.

[0042] The conventional method is generally to strip the outer skin of the connection end of the two cables to be connected, and then strip the internal copper wire of the colored interface line of the connection end. The internal copper wire of the colored interface line is welded one by one, and then the internal copper wire of each color is sealed by electrician's tape or hot melt sealing sleeve. Then the outer cable skin is sealed by the same method. The conventional method has poor mechanical strength, poor sealing performance and poor engineering site operation standard.

[0043] The working principle of the utility model is:

[0044] First, the two cables to be connected 350 to be connected can be the same diameter or different diameter. The outer skin of the connection end is stripped first, and then the internal copper wire of the colored interface line of the connection end is stripped. A sealing tube joint 200, a rubber ring 220 and a sealing tube body 100 are sequentially threaded on the left end cable, and a sealing tube joint 200, a rubber ring 220 are sequentially threaded on the right end cable.

[0045] Secondly, after the above preparation is completed, the hot melt sealing sleeve 320 of the internal colored wire copper wire and the hot melt sealing sleeve 330 of the external cable are sleeved on one end in advance. After the internal copper wire of the colored interface line is welded one by one, the hot melt sealing sleeve 320 is retracted to the welding position, and the internal copper wire of each color is sealed by using an electric hair dryer. Then the hot melt sealing sleeve 330 is retracted to the cable skin position by the same method, and the external cable skin is sealed by using an electric hair dryer. At this time, the two cables to be connected are preliminarily welded and hot melt sealed, and the length of the cable welding and hot melt sealing section is less than the length L2 of the sealing tube body.

[0046] Third, the left end of the cable 350 on the sealing tube body 100 back to the cable welding and hot melt wrapped in the center of the sealing tube body 100, and then the rubber ring 220 inserted into the left end of the sealing tube body 100 inside the thread 110, and then the left end of the sealing tube joint 200 cover 210 with wrench gradually screwed to tight, in the process of tightening because the inner diameter D4 of the stainless steel tube body 120 is less than the inner diameter D2 of the inner thread portion 110, the rubber ring 220 is sealed by the end of the sealing tube joint 210, and then under the lateral pressure, the outer expansion deformation is flattened, and then tightly holds the cable skin while filling the bottom of the inner thread portion 110, which has a good sealing effect, but also can not be too hard to twist, so as not to damage the rubber ring 220. After the left end of the sealing tube body 100 is sealed, the left end is downward, the right end is erected, the liquid of the prepared epoxy resin 340 is sucked by the suction tube and poured into the stainless steel tube body 120 inside the sealing tube body 100, and the cable connection part 300 is immersed after pouring, and the rubber ring 220 and the sealing tube joint 200 of the right end of the cable are tightened according to the above method.

[0047] Thus, the whole sealing process is completed, and through the three steps, the pressure resistance and sealing waterproof of the underwater observation equipment cable connection are realized.

[0048] The utility model has the advantages of high mechanical strength of connection part, good sealing performance, good engineering site operation specification, multi-sealing to ensure high sealing safety, and is suitable for underwater observation equipment cable connection in similar water transportation engineering and port engineering, and is especially popular in seawater sealing connection.

[0049] The above description of the embodiments is for the convenience of the ordinary skilled in the art to understand and use the utility model. Those skilled in the art can obviously make various modifications to these embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A sealing joint device suitable for underwater observation equipment cable connection, characterized in that, The utility model provides a kind of sealing pipe body (100), sealing pipe joint (200), internal connection structure (300) including interconnection cooperation;The sealing pipe body (100) is a hollow pipe material, and two ends are equipped with internal thread portion (110) and form central tube cavity (120) and pipe wall (130);Sealing pipe joint (200) is by end cap (210) and sealing ring connection cooperation composition;Internal connection structure (300) is by fixed connection, internal wire sealing sleeve, external cable sealing sleeve, additional sealing structure composition, internal connection structure (300) is by the fixed connection and is connected together with the corresponding wire of the internal of two sides to be connected cable, the sealing sleeve of internal wire, the sealing sleeve of external cable respectively carries out sealing to internal wire, external cable, and it is externally provided with additional sealing structure again; Two cables to be connected need to be connected, left end cable passes through a sealing pipe joint, rubber ring and sealing pipe body, right end cable passes through a sealing pipe joint, rubber ring; The cable to be connected is equipped with the hot melt sealing sleeve of internal various color wire copper wire and the hot melt sealing sleeve of external cable, and the internal copper wire of each color butt joint wire is welded connection one by one, and the hot melt sealing sleeve is withdrawn to the welding position, and the hot melt sealing sleeve is withdrawn to the cable outer skin position;The length of cable welding and hot melt sealing section is less than the length L2 of sealing pipe body; The sealing pipe body on left end cable is withdrawn to the welding and hot melt wrapping part of cable and is in the center of sealing pipe body, rubber ring is inserted into the internal thread of left end of sealing pipe body, and the end cap of left end sealing pipe joint is tightly closed, there is epoxy resin liquid in the stainless steel pipe body in the internal of sealing pipe body, and the connection part of cable is immersed, and the rubber ring of right end of cable and sealing pipe joint are tightly closed.

2. A sealing joint device suitable for underwater observation equipment cable connection according to claim 1, characterized in that, The internal connection structure (300) is composed of welding connection (310), internal wire copper hot melt sealing sleeve (320), external cable hot melt sealing sleeve (330) and epoxy resin (340), and the internal connection structure (300) connects the corresponding wire copper of the internal of two sides to be connected cable (350) together through welding connection (310).

3. A sealing joint device suitable for underwater observation equipment cable connection according to claim 1, characterized in that: The length and outer diameter of the sealing pipe body (100) are 200mm-300mm and 25mm-35mm respectively.

4. The sealed joint apparatus suitable for underwater observation equipment cable connection according to claim 1, characterized in that: The length and inner diameter of the internal thread portion (110) at both ends are 20mm-25mm.

5. The sealed joint apparatus suitable for underwater observation equipment cable connection according to claim 1, characterized in that: The inner diameter of the central tube cavity (120) is less than the inner diameter of the internal thread portion (110) at both ends, which is 12mm-15mm.

6. The sealed joint apparatus suitable for underwater observation equipment cable connection according to claim 1, characterized in that: The thickness of the pipe wall (130) of the sealing pipe body (100) is 6-8mm, and the thickness of the pipe wall of the thread portion at both ends is 2-4mm.

7. The sealed joint apparatus suitable for underwater observation equipment cable connection according to claim 1, characterized in that: The cross section of the end cap (210) of the sealing pipe joint (200) is hexagonal or square, and the distance between opposite sides is slightly larger than the outer diameter of the sealing pipe body.

8. The sealed joint apparatus suitable for underwater observation equipment cable connection according to claim 1, characterized in that: The other end of the end cap (210) is a metal spiral, which is a spiral thread that completely matches the internal thread at both ends of the sealing pipe body, and the length and outer diameter are 20mm-25mm.

9. The sealed joint apparatus suitable for underwater observation equipment cable connection according to claim 1, characterized in that: The thickness of the rubber ring is 5mm-7mm, the outer diameter is 20mm-23mm, it is hollow, and the hole diameter is 6mm-12mm.

Images