Wire airtight waterproof structure and airtightness detection method thereof

Abstract

The invention discloses a wire airtight waterproof structure and an airtight detection method thereof.The wire airtight waterproof structure comprises a first connecting line and a second connecting line, copper wires are fixedly connected to the adjacent ends of the first connecting line and the second connecting line, and the two copper wires are fixedly connected in a winding mode; the first connecting line and the second connecting line are both sleeved with first heat-shrinkable hoses, and first tin rings and second tin rings are fixedly embedded in the first heat-shrinkable hoses respectively. According to the airtight waterproof structure of the wire rod, the first connecting line and the second connecting line are sleeved with the first heat-shrinkable hose, so that the first tin ring and the second tin ring can tighten the first heat-shrinkable hose after being heated, and the sealing performance and the waterproof performance of the first connecting line and the second connecting line are improved; the problem that the waterproof performance and the sealing performance of the wire are damaged due to the aging of the rubber ring is avoided; in addition, through the arrangement of the vacuum detection method, the efficiency of air tightness detection of the wire rod is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire waterproofing, and in particular to an airtight waterproof structure of a wire and an airtightness detection method thereof. Background Art

[0002] As we all know, when using wires in a humid environment such as a bathroom, in order to avoid safety accidents caused by the influence of moisture on the wires, the power supply cable wires need to have waterproof properties. Currently, the common connection between wires is mainly made by connectors, and the male and female heads of the connector are sealed by rubber rings. However, this sealing method may cause aging of the rubber ring after a long time, thereby affecting the waterproofness and sealing of the wires. In addition, the steps of the wire sealing detection method in the prior art are also relatively complicated, which is not convenient for rapid detection of the wire sealing performance. For this reason, we propose an airtight waterproof structure for wires and an airtight detection method thereof. Summary of the invention

[0003] The object of the present invention is to provide a wire airtight waterproof structure and an airtightness detection method thereof, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wire airtight and waterproof structure, comprising: a first connecting wire and a second connecting wire, wherein the adjacent ends of the first connecting wire and the second connecting wire are fixedly connected with copper wires, and the two copper wires are fixedly connected by winding, and the first connecting wire and the second connecting wire are both provided with a first heat shrink hose, and the first heat shrink hose has a first tin ring and a second tin ring fixedly embedded in its interior, respectively, the inner side of the first tin ring is welded to the copper wire, and the inner side of the second tin ring is respectively tightly attached to the outer wall of the first connecting wire and the second connecting wire.

[0005] By adopting the above technical solution, after the copper wires of the first connecting wire and the second connecting wire are wound and connected, the first heat shrink hose can be put on the first connecting wire and the second connecting wire, and the position of the first tin ring can be made to correspond to the position of the copper wire, so that the first tin ring can be welded to the copper wire by heating, so that the copper wire connection can be initially sealed, and the second tin ring can also be made to cling to the outer wall of the first connecting wire and the second connecting wire by heating, and the first heat shrink hose can be tightened when heated, so that the first connecting wire and the second connecting wire have waterproof and sealing properties after being connected.

[0006] Preferably, a second heat shrink hose is sleeved on the first heat shrink hose.

[0007] By adopting the above technical solution, the sealing performance of the first connecting line and the second connecting line after being connected can be further improved.

[0008] Preferably, a first hot melt adhesive layer is filled in the adjacent gap between the second heat shrink hose and the first heat shrink hose.

[0009] By adopting the above technical solution, the gap between the second heat shrink hose and the first heat shrink hose can be sealed.

[0010] Preferably, a second hot melt adhesive layer is filled in adjacent gaps between the second heat shrink hose and the first connecting line and the second connecting line.

[0011] By adopting the above technical solution, the gap between the second heat shrink hose and the first connecting line can be sealed.

[0012] Preferably, the first heat shrink hose and the second heat shrink hose are both polyolefin heat shrink tubing.

[0013] By adopting the above technical solution, the first heat shrink hose and the second heat shrink hose can be deformed more quickly after being heated.

[0014] In addition, the present invention also provides a method for detecting the air tightness of a wire airtight waterproof structure, comprising the following steps:

[0015] Step 1: Place the sealed first connecting wire and the second connecting wire into a vacuum box, and then use a vacuum pump to extract the air inside the vacuum box;

[0016] Step 2: Observe whether the first heat shrink hose and the second heat shrink hose are expanded. If there is expansion, it proves that there is a pressure difference between the air inside the first heat shrink hose and the second heat shrink hose and the vacuum box, so that it can be determined that the air tightness of the first heat shrink hose and the second heat shrink hose is normal;

[0017] Step 3: When there is no change in the first heat shrink tube and the second heat shrink hose in the vacuum box, it is determined that the air inside the first heat shrink tube and the second heat shrink hose can circulate with the vacuum box, and further it can be determined that the air tightness of the first heat shrink tube and the second heat shrink hose has been damaged.

[0018] Preferably, in step 2, a convex lens is used to observe whether the first heat shrink hose and the second heat shrink hose are expanded.

[0019] Preferably, in step three, in order to ensure the accuracy of the determination result, the first heat shrink hose and the second heat shrink hose immersed in water can be observed by injecting water into the container. If bubbles appear, it can be determined that the sealing of the first heat shrink hose and the second heat shrink hose is damaged.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The wire airtight and waterproof structure is achieved by installing a first heat shrink hose on the first connecting wire and the second connecting wire, so that the first tin ring and the second tin ring can tighten the first heat shrink hose when exposed to heat, thereby improving the sealing and waterproof properties of the first connecting wire and the second connecting wire, thereby avoiding the problem of damage to the waterproofness and sealing of the wire due to aging of the rubber ring; in addition, the efficiency of wire airtightness detection is also improved by setting up a vacuum detection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the wire airtight waterproof structure of the present invention;

[0023] Figure 2 It is an enlarged schematic diagram of area A of the structural schematic diagram of the wire airtight waterproof structure of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the first tin ring and the first heat shrink hose in the wire airtight waterproof structure of the present invention.

[0025] In the figure: 10, first connecting wire; 20, second connecting wire; 30, copper wire; 31, first heat shrink hose; 32, first tin ring; 33, second tin ring; 34, first hot melt adhesive layer; 35, second heat shrink hose; 36, second hot melt adhesive layer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 3 ,This embodiment provides a technical solution: an airtight and waterproof structure for wires;

[0028] First, after the copper wires 30 of the first connecting wire 10 and the second connecting wire 20 are wound and connected, the first heat shrink hose 31 can be put on the first connecting wire 10 and the second connecting wire 20, and the position of the first tin ring 32 corresponds to the position of the copper wire 30, so that the first tin ring 32 can be welded on the copper wire 30 by heating, so that the connection of the copper wire 30 can be initially sealed, and the second tin ring 33 can also be closely attached to the outer wall of the first connecting wire 10 and the second connecting wire 20 by heating, and the first heat shrink hose 31 can be tightened after being heated, so that the first connecting wire 10 and the second The connecting wire 20 has waterproof and sealing properties after connection; a wire airtight waterproof structure includes a first connecting wire 10 and a second connecting wire 20, and the adjacent ends of the first connecting wire 10 and the second connecting wire 20 are fixedly connected with a copper wire 30, and the two copper wires 30 are fixedly connected by winding, and the first connecting wire 10 and the second connecting wire 20 are both covered with a first heat shrink hose 31, and the first heat shrink hose 31 is respectively fixedly embedded with a first tin ring 32 and a second tin ring 33, and the inner side of the first tin ring 32 is welded to the copper wire 30, and the inner side of the second tin ring 33 is respectively closely attached to the outer wall of the first connecting wire 10 and the second connecting wire 20;

[0029] Secondly, in order to further improve the sealing performance of the first connecting line 10 and the second connecting line 20 after connection, a second heat shrink hose 35 is mounted on the first heat shrink hose 31; in order to seal the gap between the second heat shrink hose 35 and the first heat shrink hose 31, the adjacent gap between the second heat shrink hose 35 and the first heat shrink hose 31 is filled with a first hot melt adhesive layer 34; in order to seal the gap between the second heat shrink hose 35 and the first connecting line 10, the adjacent gap between the second heat shrink hose 35 and the first connecting line 10 and the second connecting line 20 is filled with a second hot melt adhesive layer 36; in order to enable the first heat shrink hose 31 and the second heat shrink hose 35 to deform more quickly after being heated, the first heat shrink hose 31 and the second heat shrink hose 35 are both polyolefin heat shrinkable tubes.

[0030] In addition, this embodiment also provides a method for detecting the air tightness of a wire airtight waterproof structure, comprising the following steps:

[0031] Step 1: Place the sealed first connecting wire 10 and the second connecting wire 20 into a vacuum box, and then use a vacuum pump to extract the air inside the vacuum box;

[0032] Step 2: Observe whether the first heat shrink hose 31 and the second heat shrink hose 35 are expanded. If there is expansion, it proves that there is a pressure difference between the air inside the first heat shrink hose 31 and the second heat shrink hose 35 and the vacuum box, so that it can be determined that the air tightness of the first heat shrink hose 31 and the second heat shrink hose 35 is normal.

[0033] Step 3: When there is no change in the first heat shrink tube and the second heat shrink hose 35 in the vacuum box, it is determined that the air inside the first heat shrink tube and the second heat shrink hose 35 can circulate with the vacuum box, and further it can be determined that the air tightness of the first heat shrink tube and the second heat shrink hose 35 has been damaged.

[0034] It should be noted that in step 2, a convex lens is required to observe whether the first heat shrink hose 31 and the second heat shrink hose 35 are expanded.

[0035] It should be noted that: in step three, in order to ensure the accuracy of the judgment result, the first heat shrink hose 31 and the second heat shrink hose 35 immersed in water can be observed by injecting water into the container. If bubbles appear, it can be determined that the sealing of the first heat shrink hose 31 and the second heat shrink hose 35 is damaged.

[0036] In summary: the wire airtight and waterproof structure is achieved by installing the first heat shrink hose 31 on the first connecting wire 10 and the second connecting wire 20, so that the first tin ring 32 and the second tin ring 33 can tighten the first heat shrink hose 31 after being heated, thereby improving the sealing and waterproof properties of the first connecting wire 10 and the second connecting wire 20, thereby avoiding the problem of damage to the waterproofness and sealing of the wire due to aging of the rubber ring; in addition, the efficiency of the wire airtightness detection is also improved through the setting of the vacuum detection method.

[0037] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire airtight waterproof structure, characterized in that: include: A first connecting wire (10) and a second connecting wire (20), wherein adjacent ends of the first connecting wire (10) and the second connecting wire (20) are both fixedly connected with a copper wire (30), and the two copper wires (30) are fixedly connected by winding, and the first connecting wire (10) and the second connecting wire (20) are both covered with a first heat shrink hose (31), and the first heat shrink hose (31) is respectively fixedly embedded with a first tin ring (32) and a second tin ring (33), the inner side of the first tin ring (32) is welded to the copper wire (30), and the inner side of the second tin ring (33) is respectively tightly attached to the outer wall of the first connecting wire (10) and the second connecting wire (20).

2. The wire airtight waterproof structure according to claim 1, characterized in that: A second heat shrink hose (35) is sleeved onto the first heat shrink hose (31).

3. The wire airtight waterproof structure according to claim 2, characterized in that: The gap between the second heat shrink hose (35) and the first heat shrink hose (31) is filled with a first hot melt adhesive layer (34).

4. The wire airtight waterproof structure according to claim 3, characterized in that: The adjacent gaps between the second heat shrink hose (35) and the first connecting line (10) and the second connecting line (20) are filled with a second hot melt adhesive layer (36).

5. The wire airtight waterproof structure according to claim 3, characterized in that: The first heat shrink hose (31) and the second heat shrink hose (35) are both polyolefin heat shrink tubes.

6. A method for detecting the air tightness of a wire airtight waterproof structure, characterized in that: The following steps are involved: Step 1: placing the sealed first connecting wire (10) and the second connecting wire (20) into a vacuum box, and then extracting the air inside the vacuum box by using an air pump; Step 2: Observe whether the first heat shrink hose (31) and the second heat shrink hose (35) have expansion phenomena. If expansion phenomena occur, it proves that there is a pressure difference between the air inside the first heat shrink hose (31) and the second heat shrink hose (35) and the vacuum box, so that it can be determined that the air tightness of the first heat shrink hose (31) and the second heat shrink hose (35) is normal; Step 3: When there is no change in the first heat shrink tube (31) and the second heat shrink hose (35) in the vacuum box, it is determined that the air inside the first heat shrink tube (31) and the second heat shrink hose (35) can circulate with the vacuum box, and further it can be determined that the air tightness of the first heat shrink tube (31) and the second heat shrink hose (35) has been damaged.

7. The method for detecting air tightness of a wire airtight and waterproof structure according to claim 6, characterized in that: In step 2, a convex lens is used to observe whether the first heat shrink hose (31) and the second heat shrink hose (35) are expanded.

8. The method for detecting air tightness of a wire airtight waterproof structure according to claim 6, characterized in that: In step three, in order to ensure the accuracy of the determination result, water can be poured into the container to observe the first heat shrink hose (31) and the second heat shrink hose (35) immersed in water. If bubbles appear, it can be determined that the sealing of the first heat shrink hose (31) and the second heat shrink hose (35) is damaged.

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