CN214742308U - Immersible pump cable inlet wire seal structure - Google Patents
Immersible pump cable inlet wire seal structure Download PDFInfo
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- CN214742308U CN214742308U CN202023275708.8U CN202023275708U CN214742308U CN 214742308 U CN214742308 U CN 214742308U CN 202023275708 U CN202023275708 U CN 202023275708U CN 214742308 U CN214742308 U CN 214742308U
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- shaped hole
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Abstract
The utility model relates to a seal structure technical field specifically discloses a immersible pump cable inlet wire seal structure, when using, through rotatory clamp bolt for clamp bolt removes to funnel shape downthehole portion, and then makes sealed piece form reliable sealedly because of receiving the extrusion and sheath contact surface shape, and first sheath head forms reliable sealedly because of receiving extrusion and funnel shape downthehole contact surface shape, reaches sealed effect. The utility model discloses simple structure, convenient operation seals the connector through sealed piece, and the mode that the cooperation compressed tightly has improved sealed effect, satisfies sealed needs, convenient to use.
Description
Technical Field
The utility model belongs to the technical field of seal structure, concretely relates to immersible pump cable inlet wire seal structure.
Background
Immersible pump terminal box in-process that uses needs seal treatment to the inlet wire cable, immersible pump terminal box inlet wire cable seal structure that nuclear power scene used at present all adopts the sealed form of traditional housing bolt cooperation rubber packing pad crimping, because it is relatively poor to seal the effect through using rubber packing pad, and the rubber pad uses for a long time and appears ageing easily and lead to sealed inefficacy, rubber packing pad inefficacy also can accelerate in high temperature aquatic, rubber insulation cable soaks for a long time in aqueous also can lead to insulating inefficacy simultaneously.
In summary, it is necessary to design a new cable inlet sealing structure for a submersible pump to solve the above problems.
Disclosure of Invention
An object of the utility model is to provide a immersible pump cable inlet wire seal structure seals the connector lug through the sealed piece of copper product.
The technical scheme of the utility model as follows:
a submersible pump cable inlet wire sealing structure is used for leading a cable into a junction box and effectively isolating external media from permeating;
the device comprises a funnel-shaped hole, a sheath, a first sheath head, a sealing block, a second sheath head and a compression bolt;
a funnel-shaped hole is formed in the inner wall of one side of the junction box cover, and a sheath is arranged in the funnel-shaped hole;
one end of the sheath extends into the junction box cover, and the other end of the sheath extends to the outside of the junction box cover;
the diameter of one end of the funnel-shaped hole close to the inner part of the junction box cover is smaller;
a first sheath head, a sealing block and a second sheath head are sequentially arranged in the funnel-shaped hole from the end with the smaller diameter to the end with the larger diameter;
the first sheath head movably penetrates through the funnel-shaped hole and is fixedly sleeved on the sheath;
the sealing block is movably arranged in the funnel-shaped hole in a penetrating manner and movably sleeved on the sheath, and one side of the sealing block is movably contacted with the first sheath head;
the second sheath head movably penetrates through the funnel-shaped hole and is movably sleeved on the sheath, and the second sheath head is movably contacted with the other side of the sealing block;
the inner side of the end with the larger diameter of the funnel-shaped hole is provided with internal threads which are connected with the compression bolt through threads, and the head of the compression bolt is positioned outside the end with the larger diameter of the funnel-shaped hole;
a first circular hole is formed in the center of the compression bolt, the sheath penetrates through the first circular hole, and the top end of the screw rod of the compression bolt is in contact with the second sheath head;
the cable passes through the sheath and is communicated with the inside and the outside of the junction box cover.
The first sheath head and the second sheath head are both of a cylinder brim structure and are composed of a sleeve and an outer swing brim connected with the sleeve;
the sleeve of the first sheath head movably penetrates through the funnel-shaped hole and is fixedly sleeved on the sheath;
one side of the sealing block is movably contacted with the inner side of the brim of the first sheath head;
the sleeve of the second sheath head movably penetrates through the funnel-shaped hole and is movably sleeved on the sheath, and the inner side of the brim of the second sheath head is movably contacted with the other side of the sealing block;
and the top end of the screw rod of the compression bolt is in contact with the outer side of the brim of the second sheath head.
The sleeve of the second sheath head is positioned in the first circular hole.
The cable line is a multi-core cable line, and an insulating bush is sleeved on the cable line.
The sheath is an armored metal sheath.
The sealing block is in a shape of a cake ring.
The sealing block is made of copper.
The junction box further comprises a handle, and the handle is fixedly installed on the junction box cover.
When the second sheath head is used, the pressing bolt is made to move towards the inner part of the funnel-shaped hole by rotating the pressing bolt, and then the pressing bolt extrudes the second sheath head; when the pressing bolt cannot be further fastened, stopping rotating the pressing bolt, and fixing the first sheath head, the sealing block and the second sheath head; the sealing block forms reliable sealing with the contact surface of the sheath due to extrusion, and the first sheath head forms reliable sealing with the contact surface of the funnel-shaped hole due to extrusion, so that the sealing effect is achieved.
The beneficial effects of the utility model reside in that:
the utility model discloses simple structure, convenient operation seals the connector lug through the sealed piece of copper product matter, and the mode that the cooperation compressed tightly has improved sealed effect, prevents the phenomenon of ageing damage and insulation failure from appearing, satisfies sealed needs, convenient to use.
Drawings
FIG. 1 is a schematic view of a seal structure;
fig. 2 is an enlarged schematic view of a structure in fig. 1.
In the figure: 1, a junction box cover; 2, a handle; 3, a funnel-shaped hole; 4, sheathing; 5 a first sheath head; 6, sealing the block; 7 a second sheath head; 8, pressing a bolt; 9 a first circular hole; 10 cable wires; 11 insulating the bushing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a immersible pump cable inlet wire seal structure for inside leading into the terminal box through reliable sealed combination with cable conductor 10, effectively keep apart the infiltration of outside medium, including handle 2, funnel shape hole 3, sheath 4, first sheath head 5, sealed piece 6, second sheath head 7, housing bolt 8.
As shown in fig. 1, the handle 2 is fixedly arranged on the junction box cover 1.
As shown in fig. 2, a funnel-shaped hole 3 is formed on an inner wall of one side of the junction box cover 1, and a sheath 4 is arranged in the funnel-shaped hole 3. The sheath 4 is an armored metal sheath, one end of the sheath extends to the inside of the junction box cover 1, and the other end of the sheath extends to the outside of the junction box cover 1.
The funnel-shaped hole 3 is smaller in diameter close to one end inside the junction box cover 1.
In the funnel-shaped hole 3, a first sheath head 5, a sealing block 6 and a second sheath head 7 are sequentially arranged from the end with the smaller diameter to the end with the larger diameter.
The first sheath head 5 and the second sheath head 7 are both of a barrel peak structure and are composed of a sleeve and an outer swing brim connected with the sleeve.
The sleeve of the first sheath head 5 is movably arranged in the funnel-shaped hole 3 in a penetrating manner and fixedly sleeved on the sheath 4;
the sealing block 6 is in a shape of a cake ring and made of copper, movably penetrates through the funnel-shaped hole 3 and is movably sleeved on the sheath 4, and one side of the sealing block 6 is movably contacted with the inner side of the brim of the first sheath head 5;
the sleeve of the second sheath head 7 is movably arranged inside the funnel-shaped hole 3 in a penetrating manner and movably sleeved on the sheath 4, and the inner side of the brim of the second sheath head 7 is movably contacted with the other side of the sealing block 6.
The inside in the great one end of funnel shape hole 3 diameter is equipped with the internal thread, passes through threaded connection with clamp bolt 8, and clamp bolt 8's head is located the outside in the great one end of funnel shape hole 3 diameter.
First circular port 9 has been seted up to clamp bolt 8's central point, and first circular port 9 is passed to sheath 4, and the sleeve of second sheath head 7 is located first circular port 9 and clamp bolt 8's screw rod top and the brim of a hat outside contact of second sheath head 7.
The cable 10 is a multi-core cable, and an insulating bush 11 is sleeved on the cable 10. The cable 10 passes through the sheath 4 to communicate the inside and the outside of the junction box cover 1.
When the device is used, the pressing bolt 8 is rotated to move towards the inner part of the funnel-shaped hole 3, so that the pressing bolt 8 extrudes the second sheath head 7; when the hold-down bolt 8 cannot be further fastened, stopping rotating the hold-down bolt 8, so that the first sheath head 5, the sealing block 6 and the second sheath head 7 are fixed; the copper sealing block 6 forms reliable sealing with the contact surface of the sheath 4 due to extrusion, and the first sheath head 5 forms reliable sealing with the contact surface of the funnel-shaped hole 3 due to extrusion, so that the sealing effect is achieved.
The utility model discloses simple structure, convenient operation seals sheath 4 through sealed piece 6, and the mode that the cooperation compressed tightly has improved sealed effect, prevents the phenomenon of ageing damage and insulation failure from appearing, satisfies the use needs, is favorable to the use.
In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (8)
1. The utility model provides a immersible pump cable inlet wire seal structure which characterized in that: the cable connector is used for introducing a cable (10) into the junction box, and effectively isolating external medium infiltration;
comprises a funnel-shaped hole (3), a sheath (4), a first sheath head (5), a sealing block (6), a second sheath head (7) and a compression bolt (8);
a funnel-shaped hole (3) is formed in the inner wall of one side of the junction box cover (1), and a sheath (4) is arranged in the funnel-shaped hole (3);
one end of the sheath (4) extends to the inside of the junction box cover (1), and the other end of the sheath extends to the outside of the junction box cover (1);
the diameter of one end of the funnel-shaped hole (3) close to the inner part of the junction box cover (1) is smaller;
a first sheath head (5), a sealing block (6) and a second sheath head (7) are sequentially arranged in the funnel-shaped hole (3) from the end with the smaller diameter to the end with the larger diameter;
the first sheath head (5) is movably arranged in the funnel-shaped hole (3) in a penetrating way and fixedly sleeved on the sheath (4);
the sealing block (6) is movably arranged in the funnel-shaped hole (3) in a penetrating manner and movably sleeved on the sheath (4), and one side of the sealing block (6) is movably contacted with the first sheath head (5);
the second sheath head (7) is movably arranged in the funnel-shaped hole (3) in a penetrating manner and movably sleeved on the sheath (4), and the second sheath head (7) is movably contacted with the other side of the sealing block (6);
the inner side of the end with the larger diameter of the funnel-shaped hole (3) is provided with internal threads which are connected with the compression bolt (8) through threads, and the head of the compression bolt (8) is positioned outside the end with the larger diameter of the funnel-shaped hole (3);
a first circular hole (9) is formed in the center of the compression bolt (8), the sheath (4) penetrates through the first circular hole (9), and the top end of a screw rod of the compression bolt (8) is in contact with a second sheath head (7);
the cable (10) passes through the sheath (4) and is communicated with the inside and the outside of the junction box cover (1).
2. The submersible pump cable inlet wire seal structure of claim 1, characterized in that: the first sheath head (5) and the second sheath head (7) are both of a barrel brim structure and are composed of a sleeve and an outer swing brim connected with the sleeve;
the sleeve of the first sheath head (5) is movably arranged in the funnel-shaped hole (3) in a penetrating manner and fixedly sleeved on the sheath (4);
one side of the sealing block (6) is movably contacted with the inner side of the brim of the first sheath head (5);
the sleeve of the second sheath head (7) is movably arranged in the funnel-shaped hole (3) in a penetrating manner and movably sleeved on the sheath (4), and the inner side of the brim of the second sheath head (7) is movably contacted with the other side of the sealing block (6);
the top end of the screw rod of the compression bolt (8) is in contact with the outer side of the brim of the second sheath head (7).
3. The submersible pump cable inlet wire seal structure of claim 2, characterized in that: the sleeve of the second sheath head (7) is positioned in the first circular hole (9).
4. The submersible pump cable inlet wire seal structure of claim 1, characterized in that: the cable (10) is a multi-core cable, and an insulating bush (11) is sleeved on the cable (10).
5. The submersible pump cable inlet wire seal structure of claim 1, characterized in that: the sheath (4) is an armored metal sheath.
6. The submersible pump cable inlet wire seal structure of claim 1, characterized in that: the sealing block (6) is in a shape of a cake ring.
7. The submersible pump cable inlet wire seal structure of claim 1, characterized in that: the sealing block (6) is made of copper.
8. The submersible pump cable inlet wire seal structure of claim 1, characterized in that: still include handle (2), handle (2) fixed mounting on junction box cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275708.8U CN214742308U (en) | 2020-12-30 | 2020-12-30 | Immersible pump cable inlet wire seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275708.8U CN214742308U (en) | 2020-12-30 | 2020-12-30 | Immersible pump cable inlet wire seal structure |
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| Publication Number | Publication Date |
|---|---|
| CN214742308U true CN214742308U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023275708.8U Active CN214742308U (en) | 2020-12-30 | 2020-12-30 | Immersible pump cable inlet wire seal structure |
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| Country | Link |
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| CN (1) | CN214742308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682346A (en) * | 2020-12-30 | 2021-04-20 | 福建福清核电有限公司 | Immersible pump cable inlet wire seal structure |
-
2020
- 2020-12-30 CN CN202023275708.8U patent/CN214742308U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682346A (en) * | 2020-12-30 | 2021-04-20 | 福建福清核电有限公司 | Immersible pump cable inlet wire seal structure |
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