CN214958631U - Buried transformer with high-tightness inlet and outlet cable sealing structure - Google Patents
Buried transformer with high-tightness inlet and outlet cable sealing structure Download PDFInfo
- Publication number
- CN214958631U CN214958631U CN202121204836.5U CN202121204836U CN214958631U CN 214958631 U CN214958631 U CN 214958631U CN 202121204836 U CN202121204836 U CN 202121204836U CN 214958631 U CN214958631 U CN 214958631U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- elastic sealing
- mounting seat
- hole
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Installation Of Indoor Wiring (AREA)
Abstract
The utility model discloses a buried transformer with a high-tightness inlet and outlet cable sealing structure, relating to the technical field of transformers and comprising a transformer shell; the mounting seat is fixedly mounted on the transformer shell, and a through hole for the incoming and outgoing cable to pass through is formed in the mounting seat; the elastic sealing ring is coaxially sleeved on the outer side of the incoming and outgoing cable and is positioned in the through hole of the mounting seat; and the pressing piece is positioned in the through hole of the mounting seat and used for applying pressure along the axis direction of the elastic sealing ring, so that the elastic sealing ring generates radial deformation to fill a gap between the wire inlet and outlet cable and the inner side wall of the mounting seat. The utility model discloses a compressing tightly the piece and applying axial pressure to elastic seal circle, making elastic seal circle produce radial deformation to effectively fill the clearance between business turn over line cable and the mount pad inside wall, improved the sealing performance between business turn over line cable and the mount pad.
Description
Technical Field
The utility model relates to a transformer technical field especially relates to a bury formula transformer with high leakproofness business turn over line cable seal structure.
Background
The buried transformer is a novel compact power transformation device which is formed by combining a transformer, a high-voltage load switch, a fuse and the like and is installed in a pit without occupying the ground surface space. The buried voltage device box body shell is generally made of anticorrosive stainless steel and is fully sealed. The high-low voltage inlet and outlet wires are arranged on the transformer box body shell in a penetrating mode, so that the sealing performance between the high-low voltage inlet and outlet wires and the transformer box body shell needs to be guaranteed, and the integral anti-seepage and waterproof requirements of the buried transformer can be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a bury formula transformer with high leakproofness business turn over line cable seal structure.
In order to solve the technical problem, the technical scheme of the utility model as follows:
an underground transformer with high-tightness inlet and outlet cable sealing structure comprises,
a transformer housing;
the mounting seat is fixedly mounted on the transformer shell, and a through hole for the incoming and outgoing cable to pass through is formed in the mounting seat;
the elastic sealing ring is coaxially sleeved on the outer side of the incoming and outgoing cable and is positioned in the through hole of the mounting seat; and the number of the first and second groups,
the pressing piece is located in the through hole of the mounting seat and used for applying pressure along the axis direction of the elastic sealing ring, so that the elastic sealing ring generates radial deformation to fill a gap between the incoming and outgoing line cable and the inner side wall of the mounting seat.
According to the technical scheme, the pressing piece applies axial pressure to the elastic sealing ring to enable the elastic sealing ring to generate radial deformation, so that a gap between the incoming and outgoing line cable and the inner side wall of the mounting seat is effectively filled, the sealing performance between the incoming and outgoing line cable and the mounting seat is improved, and the integral anti-seepage and waterproof requirements of the transformer are met.
As a bury formula transformer's an preferred scheme with high leakproofness business turn over line cable seal structure, wherein: the pressing piece comprises two pressing rings which are oppositely arranged at two ends of the elastic sealing ring in the axial direction, and the pressing rings can move in the axial direction of the elastic sealing ring.
As a bury formula transformer's an preferred scheme with high leakproofness business turn over line cable seal structure, wherein: the elastic sealing ring is a D-shaped sealing ring, one side of the pressing ring, which faces the elastic sealing ring, is provided with a conical surface, and the conical surface is tangent to the side surface of the elastic sealing ring.
According to the technical scheme, the D-shaped sealing ring is adopted, the side face of the pressing ring is set to be a conical surface tangent to the side face of the elastic sealing ring, centripetal pressing force can be applied to the elastic sealing ring when the pressing ring extrudes the elastic sealing ring, and therefore the elastic sealing ring can generate obvious radial deformation under smaller pressure, and required pressure is reduced on the premise of ensuring sealing performance.
As a bury formula transformer's an preferred scheme with high leakproofness business turn over line cable seal structure, wherein: the pressing piece further comprises a pressing nut located at one end, far away from the elastic sealing ring, of the pressing ring, an inner thread is arranged on the inner side wall of the through hole, an outer thread is arranged on the outer side wall of the pressing nut, and the pressing nut is installed in the through hole in a threaded mode.
Above-mentioned technical scheme provides pressure to the clamping ring through the screw thread fit between gland nut and the through-hole inner wall, guarantees the stability of clamping ring position.
As a bury formula transformer's an preferred scheme with high leakproofness business turn over line cable seal structure, wherein: the fixed cyclic annular limit baffle that is provided with of inside wall of through-hole, lie in the through-hole limit baffle's both sides all are provided with elastic seal, the clamping ring is located elastic seal keeps away from limit baffle's one side, limit baffle orientation elastic seal's one end sets up to the conical surface, just the conical surface with elastic seal's side is tangent.
According to the technical scheme, the elastic sealing rings are arranged at the two ends of the mounting seat, double sealing is achieved, sealing performance is guaranteed, the two elastic sealing rings are compressed by the two ends simultaneously to the limiting baffle in the middle, when the elastic sealing rings just start to contact, air near the limiting baffle is sealed in a narrow space, the air of the elastic sealing rings is compressed to form positive pressure, and sealing performance is further guaranteed.
As a bury formula transformer's an preferred scheme with high leakproofness business turn over line cable seal structure, wherein: the limiting baffle and the mounting seat are integrally formed.
The utility model has the advantages that:
(1) the utility model discloses a compressing tightly the piece and applying axial pressure to elastic seal circle, making elastic seal circle produce radial deformation to effectively fill the clearance between business turn over line cable and the mount pad inside wall, improved the sealing performance between business turn over line cable and the mount pad.
(2) The utility model discloses install the elastic sealing circle simultaneously at the both ends of mount pad, two elastic sealing circle are compressed tightly to the limit baffle at middle part by both ends simultaneously, when just beginning to contact, and near limit baffle's air is sealed in narrow and small space, along with compressing tightly of two elastic sealing circle, the air of this part is compressed, forms the malleation, has further guaranteed sealing performance.
(3) The load size and the expend with heat and contract with cold of cable can arouse the change of cable diameter, and the utility model discloses in can just in time compensate the change of cable diameter to the centripetal packing force that elastic seal applied, guarantee that seal structure can not become invalid.
(4) The cable has very big impact according to the load size, the electric current that flows through for a short time, produces very big axial impact force, and the utility model discloses allow the cable to do a small amount of axial float, do not influence sealed effect, this plays the key role to sealed long-term reliable operation because under the effect of cable reversal electric power, the micro-float can not avoid.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a buried transformer with a high-tightness in-out cable sealing structure provided by the present invention;
wherein: 1. a mounting seat; 2. an incoming and outgoing cable; 3. a through hole; 4. an elastic sealing ring; 5. pressing a ring; 6. a compression nut; 7. and a limiting baffle.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The embodiment provides a buried transformer with a high-tightness inlet and outlet cable 2 sealing structure, which comprises a transformer shell and a transformation component arranged in the transformer shell. The transformer is characterized in that a mounting seat 1 is fixedly arranged on the transformer shell, a through hole 3 along the axis direction of the mounting seat 1 is arranged in the mounting seat 1 in a penetrating mode, and an incoming and outgoing cable 2 in the transformer penetrates through the through hole 3 after penetrating through the transformer shell.
In order to ensure the sealing performance between the incoming and outgoing cable 2 and the mounting seat 1, an elastic sealing ring 4 is coaxially sleeved outside the incoming and outgoing cable 2, the elastic sealing ring 4 is positioned in the through hole 3 of the mounting seat 1, and two ends of the elastic sealing ring 4 in the through hole 3 are provided with pressing pieces. This compress tightly the piece and can apply the pressure along its axis direction to elastic seal 4, make elastic seal 4 produce radial deformation, and then make elastic seal 4's lateral wall closely laminate with the inside wall of mount pad 1, elastic seal 4's inside wall closely laminates with the lateral wall of business turn over line cable 2 to guarantee the sealing performance between business turn over line cable 2 and the mount pad 1.
Wherein, the pressing piece comprises two pressing rings 5 positioned at two ends of the elastic sealing ring 4 in the axial direction. The middle part of each pressing ring 5 is provided with a through hole 3 for the incoming and outgoing cable 2 to pass through. The pressing ring 5 is movable in the through hole 3 in the axial direction of the incoming and outgoing cable 2. When two clamping rings 5 all moved to elastic seal 4, axial pressure can be exerted to elastic seal 4 to clamping ring 5, and elastic seal 4 receives and can produce radial deformation after the extrusion to the clearance that will pass in and out between wire cable 2 and the 1 inside wall of mount pad is filled completely.
Preferably, the elastic sealing ring 4 is a D-shaped sealing ring, and the end surface of the pressing ring 5 facing the elastic sealing ring 4 is set to be a cambered surface matched with the side surface of the D-shaped sealing ring. When the pressing ring 5 extrudes the elastic sealing ring 4, centripetal pressing force is applied to the elastic sealing ring 4, so that the outer side wall of the elastic sealing ring 4 can be ensured to be attached to the inner side wall of the mounting seat 1 when the elastic sealing ring 4 is subjected to smaller pressure.
To ensure the pressing effect of the pressure rings 5 on the elastic sealing ring 4, the pressure piece in this embodiment further comprises a pressure nut 6 located outside each pressure ring 5. The outer side wall of the compression nut 6 is provided with external threads, and the two ends of the inner side wall of the mounting seat 1 are correspondingly provided with matched external threads. The compression nut 6 is installed in the through hole 3 of the installation seat 1 in a threaded mode. The compression nut 6 can be stepped according to the thread pitch by rotating the compression nut 6, and axial pressure is applied to the pressing ring 5.
Preferably, a plurality of wrench holes are formed in the outer end face of each compression nut 6, and a special wrench applies torque to the compression nut 6 through the wrench holes to step the compression nut 6 according to the thread pitch, so that axial pressure is applied to the pressing ring 5. The special spanner is convenient for controlling the torque, thereby effectively controlling the axial force applied to the pressing ring 5, enabling the elastic sealing ring 4 compressed and compressed to be moderately deformed and keeping good elasticity.
In addition, an annular limit baffle 7 is integrally formed on the inner side wall of the mounting seat 1. The longitudinal section of the limiting baffle 7 is two opposite V-shaped bumps, that is, one end of the limiting baffle 7 facing the elastic sealing ring 4 is arranged as a conical surface tangent to the side surface of the elastic sealing ring 4, as shown in fig. 1. Elastic sealing rings 4 are arranged on two sides of the limiting baffle 7. And a pressing ring 5 and a pressing nut 6 are sequentially arranged on the outer side of each elastic sealing ring 4 in the through hole 3 of the mounting seat 1. The special spanner is used for applying rated torque to each compression nut 6, so that the compression nuts 6 step by step according to thread pitches, axial force is applied to the pressing ring 5, and then the pressing ring 5 presses the elastic sealing ring 4, and due to the arrangement of the limiting baffle 7 and the conical surfaces of the pressing ring 5 and the adoption of the D-shaped sealing ring 4, the two elastic sealing rings 4 are all acted with centripetal pressing force, so that the elastic sealing rings 4 are extruded and deformed, and the sealing effect is achieved. All install elastic seal 4 at the both ends of mount pad 1, realize that the double seal guarantees sealing performance, and two elastic seal 4 compress tightly to the limit baffle 7 at middle part simultaneously by both ends, when just beginning the contact, near limit baffle 7's air is sealed in narrow and small space, along with compressing tightly of two elastic seal 4, this partial air is compressed, forms the malleation, has further guaranteed sealing performance.
In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (6)
1. The utility model provides a bury formula transformer with high leakproofness business turn over line cable seal structure which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a transformer housing;
the mounting seat (1) is fixedly mounted on the transformer shell, and a through hole (3) for the wire inlet and outlet cable (2) to pass through is formed in the mounting seat (1);
the elastic sealing ring (4) is coaxially sleeved on the outer side of the incoming and outgoing cable (2) and is positioned in the through hole (3) of the mounting seat (1); and the number of the first and second groups,
the pressing piece is located in a through hole (3) of the mounting seat (1) and used for applying pressure along the axis direction of the elastic sealing ring (4) to enable the elastic sealing ring (4) to generate radial deformation to fill a gap between the inner side wall of the mounting seat (1) and the incoming and outgoing cable (2).
2. The buried transformer with high-tightness in-out cable sealing structure according to claim 1, characterized in that: the pressing piece comprises two pressing rings (5) which are oppositely arranged at two ends of the elastic sealing ring (4) in the axis direction, and the pressing rings (5) can move in the axis direction of the elastic sealing ring (4).
3. The buried transformer with high-tightness in-out cable sealing structure according to claim 2, characterized in that: the elastic sealing ring (4) is a D-shaped sealing ring, one side of the pressing ring (5) facing the elastic sealing ring (4) is provided with a conical surface, and the conical surface is tangent to the side surface of the elastic sealing ring (4).
4. The buried transformer with high-tightness in-out cable sealing structure according to claim 2, characterized in that: the pressing piece also comprises a pressing nut (6) which is positioned at one end of the pressing ring (5) far away from the elastic sealing ring (4),
the inner side wall of the through hole (3) is provided with an internal thread, the outer side wall of the compression nut (6) is provided with an external thread, and the compression nut (6) is installed in the through hole (3) in a threaded mode.
5. The buried transformer with high-tightness in-out cable sealing structure according to claim 3, characterized in that: an annular limiting baffle (7) is fixedly arranged on the inner side wall of the through hole (3), elastic sealing rings (4) are arranged on two sides of the limiting baffle (7) in the through hole (3), the pressing ring (5) is arranged on one side of the elastic sealing ring (4) far away from the limiting baffle (7),
one end, facing the elastic sealing ring (4), of the limiting baffle (7) is set to be a conical surface, and the conical surface is tangent to the side face of the elastic sealing ring (4).
6. The buried transformer with high-tightness in-out cable sealing structure according to claim 5, characterized in that: the limiting baffle (7) and the mounting seat (1) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121204836.5U CN214958631U (en) | 2021-06-01 | 2021-06-01 | Buried transformer with high-tightness inlet and outlet cable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121204836.5U CN214958631U (en) | 2021-06-01 | 2021-06-01 | Buried transformer with high-tightness inlet and outlet cable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214958631U true CN214958631U (en) | 2021-11-30 |
Family
ID=79057537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121204836.5U Active CN214958631U (en) | 2021-06-01 | 2021-06-01 | Buried transformer with high-tightness inlet and outlet cable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214958631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114629025A (en) * | 2022-03-31 | 2022-06-14 | 苏州冠韵威电子技术有限公司 | Supporting electric cabinet that uses of many interfaces safe type semiconductor equipment |
-
2021
- 2021-06-01 CN CN202121204836.5U patent/CN214958631U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114629025A (en) * | 2022-03-31 | 2022-06-14 | 苏州冠韵威电子技术有限公司 | Supporting electric cabinet that uses of many interfaces safe type semiconductor equipment |
| CN114629025B (en) * | 2022-03-31 | 2022-11-22 | 苏州冠韵威电子技术有限公司 | Multi-interface safe type electric cabinet matched with semiconductor equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214958631U (en) | Buried transformer with high-tightness inlet and outlet cable sealing structure | |
| CN203871156U (en) | Sealing device of transformer bushing | |
| CN209249262U (en) | A kind of transformer bushing | |
| CN105048170A (en) | Internal and external stepped large-area short-stroke electric wiring terminal | |
| CN102354569B (en) | Diameter-expanding cable | |
| CN208690537U (en) | A kind of embedding envelope formula copper-aluminium joint | |
| CN206712328U (en) | Cable expansion device | |
| CN206195319U (en) | Submersible pump cable and signal line sealing device | |
| CN204966812U (en) | Inside and outside cascaded large tracts of land short stroke electric power binding post | |
| CN205194940U (en) | Sealing structure | |
| CN1503421A (en) | Dry terminal for high-voltage cross-linked cable gas-insulation switch and installation method | |
| CN208423315U (en) | Explosion-proof threading clamp device | |
| CN201699366U (en) | Junction box of shielding-type electric driving device | |
| CN104565364B (en) | Insulated sealing device | |
| CN105161903A (en) | Waterproof connector for connecting cables | |
| CN203532735U (en) | Insulation sealing device | |
| CN219041309U (en) | Novel oil-immersed pump terminal box seal structure | |
| CN201608092U (en) | Shaft sealing device of circuit breaker | |
| CN213844900U (en) | Dry-type GIS outlet sleeve head seal structure | |
| CN218275980U (en) | Novel insulating and explosion-proof structure of explosion-proof junction box | |
| CN201667593U (en) | Roller-way motor equipped with sealing structure | |
| CN220273301U (en) | Explosion-proof cable sealing device | |
| CN212323688U (en) | High-temperature-resistant high-pressure-resistant waterproof sensor structure | |
| CN209297847U (en) | A kind of composite sheath power station type arrester | |
| CN211404265U (en) | Be applied to transformer bushing's core seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |