CN213521179U - Sealing element for shielding cylinder and shielding cylinder easy to install - Google Patents
Sealing element for shielding cylinder and shielding cylinder easy to install Download PDFInfo
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- CN213521179U CN213521179U CN202021429094.1U CN202021429094U CN213521179U CN 213521179 U CN213521179 U CN 213521179U CN 202021429094 U CN202021429094 U CN 202021429094U CN 213521179 U CN213521179 U CN 213521179U
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Abstract
The utility model discloses a shielding section of thick bamboo that is used for sealing member of a shielding section of thick bamboo and easily installs belongs to tub generating line technical field. The connecting and fixing part comprises a shielding cylinder, a middle part joint in the shielding cylinder and two connecting and fixing parts at two ends of the shielding cylinder, the connecting and fixing parts comprise flanges coaxial with the shielding cylinder, bus O-shaped sealing rings and sealing pieces, sleeve sleeves of the sealing pieces are sleeved on pipe buses of corresponding sides and are positioned outside the shielding cylinder, the flange sleeves are sleeved outside the sleeve sleeves, gaps are formed between the flanges and the sleeve sleeves, the bus O-shaped sealing rings are arranged between the flanges and the end parts of the shielding cylinder, and the flange sealing surfaces of the sealing pieces are arranged between the flanges and the end parts of the shielding cylinder and fastened together through bolts. The corrugated surface of the sealing element is used for absorbing the deformation and the out-of-round of the outer diameter of the tube bus; the mounting error can be reduced, vibration absorption is realized, and the sealing member is prevented from being torn. The structure can also effectively prevent the plane sealing section of the flange from deforming, and avoid the damage of the local stress concentration of the sealing element to the sealing element. The sealing element can avoid the influence of size deviation and installation deviation on the sealing of the shielding cylinder.
Description
Technical Field
The utility model belongs to the technical field of the tub generating line, in particular to a shielding section of thick bamboo that is used for the sealing member of a shielding section of thick bamboo and easily installs.
Background
The shielding cylinder is an insulation protection device mainly applied to the joint of two sections of buses of a composite shielding insulation copper pipe bus, the external insulation protection of the shielding cylinder plays a vital role in the safe and reliable operation of a power transmission and distribution system and power equipment, and the shielding cylinder is an essential component for normal operation of products, avoiding the occurrence of interphase short circuit and insulation protection.
For example, patent No. CN201020039474.4 discloses a tubular busbar connection insulation shielding cartridge for connecting two tubular busbars coated with a shielding insulation layer, comprising: an intermediate joint conductively connecting two tubular bus bars; the equalizing ring is sleeved outside the middle joint and controls an electric field at the middle joint; the insulating cylinder is sleeved outside the middle joint and the equalizing ring, and the diameter and the axial length of the insulating cylinder are greater than those of the middle joint; and the flanges respectively seal gaps between two ends of the insulating cylinder and the two tubular buses.
When the applicant adopts the shielding cylinder to realize the connection of the tubular bus, the applicant finds that the end part (sealing section) of the tubular bus can be deformed and out of round and the like, which can cause poor sealing effect of the O-shaped sealing ring; meanwhile, the sealing structure between the insulating cylinder and the flange may have installation deviation during installation; the sealing effect of the shielding cylinder can be affected by the problems, so that water, gas and the like enter the shielding cylinder, and the service life and the electrical performance of the tubular bus are affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the embodiment of the utility model provides a shield section of thick bamboo that is used for the sealing member of a shield section of thick bamboo and easily installs has adopted special construction's sealing member and has adjusted the mounting means, and this sealing member can avoid the sealed influence of size deviation and installation deviation to a shield section of thick bamboo. The technical scheme is as follows:
on one hand, the embodiment of the utility model provides a sealing member for shielding section of thick bamboo, it is rubber material and it includes the sealed face that the pipe 61 outside and coaxial with the sleeve 61 of the sleeve 61 outside and the pipe bus 7 size cooperation of internal diameter; the sleeve 61 is a circular tube structure coaxial with the tube bus 7; the sealing surface is sequentially provided with a corrugated surface 62 and a flange sealing surface 63 from inside to outside, and the corrugated surface 62 is corrugated from inside to outside; the flange sealing surface 63 is a plane, and can be arranged between the end of the shielding cylinder 1 and the flange 4, and is provided with a bolt mounting hole 64 matched with the flange 4.
Wherein, the corrugated surface 62 in the embodiment of the present invention is provided with at least one corrugation protruding to one side far away from the sleeve 61.
Specifically, the corrugated surface 62 in the embodiment of the present invention is provided with a corrugation; the height of the corrugated bulges is 5-8mm, and the width of the corrugated bulges is 7-10 mm.
Wherein, the sealing surface in the embodiment of the present invention is circular and the outer diameter thereof is equal to the diameter of the shielding cylinder 1, and the length of the sleeve 61 is 20-50 mm.
On the other hand, the embodiment of the utility model provides a shielding section of thick bamboo of easily installing, intermediate member joint 2 in shielding section of thick bamboo 1, shielding section of thick bamboo 1 and two connection mountings at shielding section of thick bamboo 1 both ends, connection mountings include flange 4, generating line O type sealing washer 5 and sealing member 6 coaxial with shielding section of thick bamboo 1, the sleeve pipe 61 cover of sealing member 6 is established on the tub generating line 7 of corresponding side and is located shielding section of thick bamboo 1 outside, the cover of flange 4 is established outside sleeve pipe 61, have the clearance between flange 4 and the sleeve pipe 61 and be equipped with generating line O type sealing washer 5 between and, the flange seal face 63 of sealing member 6 is located between flange 4 and the 1 tip of shielding section of thick bamboo and is in the same place through bolt 3 fastening.
Preferably, the embodiment of the present invention provides a flange 4 including an inner flange 41 and an outer flange 42 disposed side by side, the inner flange 41 is pressed against a flange sealing surface 63, the inner side of the contact portion between the inner flange 41 and the outer flange 42 is provided with an inclined plane cooperating with a bus O-ring 5, the two inclined planes cooperate to form a V-ring groove 8 for accommodating the bus O-ring 5, the outer side of the bus O-ring 5 is embedded into the V-ring groove 8, and the outer flange 42, the inner flange 41 and the flange sealing surface 63 are fixed at the end of the shielding cylinder 1 through bolts 3.
Further, the embodiment of the present invention provides an outer flange 42 is close to one side of shielding cylinder 1 and is equipped with annular 10 of holding flange O type sealing washer 9, annular 10 is coaxial with shielding cylinder 1 and its inboard that is located bolt 3, be equipped with flange O type sealing washer 9 between annular 10 and the inner flange 41.
Wherein, the embodiment of the utility model provides an in shielding section of thick bamboo 1 includes the shielding section of thick bamboo flange 12 at barrel 11 and barrel 11 both ends, one side of shielding section of thick bamboo flange 12 is equipped with the installation step 13 that matches with the barrel 11 internal diameter, installation step 13 is inserted and is established in barrel 11 and adhesive fixation, outer flange 42, inner flange 41, flange seal face 63 and shielding section of thick bamboo flange 12 pass through bolt 3 and fix together.
Specifically, the inner diameter of the flange 4 in the embodiment of the present invention is 3-6mm larger than the outer diameter of the sleeve 61, and the sleeve 61 penetrates out of the flange 4.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model provides a sealing element for a shielding cylinder and a shielding cylinder which is easy to install; the corrugated surface of the sealing element is used for absorbing the deformation and the out-of-round of the outer diameter of the tube bus; the mounting error can be reduced, vibration absorption is realized, and the sealing member is prevented from being torn. The structure can also effectively prevent the plane sealing section of the flange from deforming, and avoid the damage of the local stress concentration of the sealing element to the sealing element. Through practical application, in the shielding cylinder, the allowable deviation of the diameter of the tubular bus can reach +/-3 mm, the planar sealing section of the flange is not deformed, and the corrugated surface can absorb the installation deviation of about 5 mm; the sealing effect of the sealing element on the shielding cylinder is ensured.
Drawings
Fig. 1 is a schematic structural view of a seal member for a shield cylinder provided in embodiment 1;
FIG. 2 is a sizing chart of the corrugations of the seal for the shield can;
FIG. 3 is a schematic structural view of the shield cylinder provided in embodiment 2 and easy to install;
fig. 4 is a partially enlarged view of fig. 3.
In the figure: 1, a shielding cylinder, 2, a middle part joint, 3 bolts, 4 flanges, 5 bus O-shaped sealing rings, 6 sealing elements, 7 pipe buses, 8V-shaped ring grooves, 9 flange O-shaped sealing rings and 10 ring grooves;
11, mounting steps on the cylinder body, 12 shield cylinder flanges and 13;
41 inner flange, 42 outer flange;
61 sleeve, 62 corrugated surface, 63 flange sealing surface, 64 bolt mounting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and 2, embodiment 1 provides a seal member for a shield cylinder, which is made of rubber and includes a sleeve 61 having an inner diameter (the inner diameter is the same as the diameter of the tube bus bar 7) matching the size of the tube bus bar 7 and a sealing surface outside one end of the sleeve 61 and coaxial with the sleeve 61. The sleeve 61 is a circular tube structure coaxial with the tube bus 7; the sealing surface is sequentially provided with a corrugated surface 62 and a flange sealing surface 63 from inside to outside, the sealing surface is of a circular ring structure, and the corrugated surface 62 and the flange sealing surface 63 are of circular ring structures and are coaxial. Wherein, the corrugated surface 62 is corrugated from inside to outside; the flange sealing surface 63 is a flat surface, which can be disposed between the end of the shielding cylinder 1 and the flange 4, and is provided with bolt mounting holes 64 (for bolts 3 to pass through) that are engaged with the flange 4.
In the embodiment of the present invention, at least one corrugation protruding toward a side away from the sleeve 61 (a side away from the flange) is provided on the corrugated surface 62.
Specifically, referring to fig. 2, the corrugated surface 62 of the embodiment of the present invention is provided with a corrugation protruding to the side away from the sleeve 61, the height H of the corrugation protrusion is 5-8mm, and the width L (the distance between the inner side and the outer side) is 7-10 mm.
Wherein, the sealing surface in the embodiment of the present invention is circular and the outer diameter thereof is equal to (or slightly smaller than) the diameter of the shielding cylinder 1, and the length of the sleeve 61 is 20-50 mm.
In the embodiment, the corrugated surface is used for absorbing the deformation and the out-of-round of the outer diameter of the tube bus; the mounting error can be reduced, vibration absorption is realized, and the sealing member is prevented from being torn. The structure can also effectively prevent the plane sealing section of the flange from deforming, and avoid the damage of local stress concentration of the sealing element to the sealing element; in conclusion, the structure can avoid the influence of size deviation and installation deviation on the sealing of the shielding cylinder.
Example 2
Referring to fig. 3-4, an embodiment of the present invention provides a shielding cylinder easy to install, including a shielding cylinder 1, a middle piece joint 2 in the shielding cylinder 1, and two connecting fixtures at two ends of the shielding cylinder 1, where the connecting fixtures include a flange 4 coaxial with the shielding cylinder 1, a bus O-shaped sealing ring 5, and the like; the structure is basically the same as that of the existing shielding cylinder, except that: the connection fixture in this embodiment further includes the sealing member 6 provided in embodiment 1. The sealing element 6 is arranged coaxially with the shielding cylinder 1, the sleeve 61 of the sealing element 6 is sleeved on the tubular bus bar 7 on the corresponding side, and the sleeve 61 is located outside the shielding cylinder 1 (between the tubular bus bar 7 and the flange 4). The flange 4 is sleeved outside the sleeve 61, a gap is formed between the flange 4 and the sleeve 61, and the bus O-shaped sealing ring 5 is arranged between the flange 4 and the sleeve 61 to play a sealing role (meanwhile, the sleeve 61 is extruded to ensure the sealing effect of the sleeve 61 and the bus O-shaped sealing ring 5). The flange sealing surface 63 of the seal 6 is provided between the flange 4 and the end of the shielding cylinder 1 and is fastened together (in accordance with conventional techniques) by means of bolts 3 (a plurality of bolts 3 are evenly distributed around the shielding cylinder 1, the bolts 3 being arranged in the direction in which the shielding cylinder 1 is located).
Preferably, referring to fig. 3-4, the flange 4 of the embodiment of the present invention includes an inner flange 41 and an outer flange 42 (consistent with the conventional art) which are arranged side by side in the axial direction of the shielding cylinder 1, and the inner flange 41 and the outer flange 42 are circular ring-shaped flange plates and are provided with flange holes (for bolts 3 to pass through) which are matched with the bolt mounting holes 64. The inner flange 41 is pressed against the flange sealing surface 63, the inner sides of the contact parts of the inner flange 41 and the outer flange 42 are provided with inclined surfaces matched with the outer sides of the bus O-shaped sealing rings 5, and the two inclined surfaces (one inclined surface inclines towards the shielding cylinder 1, and the other inclined surface inclines away from the shielding cylinder 1) are matched to form a V-shaped ring groove 8 (an annular structure, the section of which is a V-shaped structure or a similar V-shaped structure) for accommodating the bus O-shaped sealing rings 5; the outer side of the bus bar O-shaped seal ring 5 is embedded into the V-shaped ring groove 8 formed by splicing the inclined surfaces of the inner flange 41 and the outer flange 42, and the inner side of the seal ring abuts against the outer side of the sleeve 61. The outer flange 42, the inner flange 41 and the flange seal surface 63 are fixed to the end of the shield cylinder 1 by bolts 3.
Further, referring to fig. 3-4, one side of the outer flange 42 close to the shielding cylinder 1 in the embodiment of the present invention is provided with an annular groove 10 (specifically, a rectangular groove) for accommodating the flange O-shaped sealing ring 9, the annular groove 10 is coaxial with the shielding cylinder 1 and is located inside the bolt 3, and the flange O-shaped sealing ring 9 is provided between the annular groove 10 and the inner flange 41 for sealing.
Referring to fig. 3-4, the shielding cylinder 1 in the embodiment of the present invention includes a cylinder body 11, shielding cylinder flanges 12 at two ends of the cylinder body 11, and the like. The shielding cylinder flange 12 is of a circular ring structure, one side of the shielding cylinder flange is provided with an installation step 13 matched with the inner diameter of the cylinder 11 (the outer diameter is equal to the inner diameter of the cylinder 11 or slightly smaller (preferable) than the inner diameter of the cylinder 11), and the outer diameter of the other side (the end face is provided with a flange hole for the bolt 3 to pass through) of the shielding cylinder flange is almost the same as the outer diameter of the cylinder 11. The mounting step 13 is inserted into the cylinder 11 and fixed by gluing, and the outer flange 42, the inner flange 41, the flange sealing surface 63 and the shield cylinder flange 12 are fixed together by the bolts 3.
Specifically, referring to fig. 3-4, the inner diameter of the flange 4 in the embodiment of the present invention is 3-6mm larger than the outer diameter of the sleeve 61, and the sleeve 61 penetrates out of the flange 4.
Specifically, referring to fig. 2 to 4, the corrugated surface 62 of the sealing member 6 according to the embodiment of the present invention is provided with a corrugation protruding to the side away from the sleeve 61, the height H of the corrugation protrusion is 5 to 8mm, and the width L (the distance between the inner side and the outer side) thereof is 7 to 10 mm.
Through practical application, in the shielding cylinder, the allowable deviation of the diameter of the tubular bus can reach +/-3 mm, the planar sealing section of the flange is not deformed, and the corrugated surface can absorb the installation deviation of about 5 mm; the sealing effect of the sealing element on the shielding cylinder is ensured.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A sealing element for a shielding cylinder is characterized by being made of rubber and comprising a sleeve (61) with the inner diameter matched with the size of a tubular bus (7) and a sealing surface which is arranged on the outer side of one end of the sleeve (61) and is coaxial with the sleeve (61); the sleeve (61) is of a circular tube structure coaxial with the tube bus (7); the sealing surface is sequentially provided with a corrugated surface (62) and a flange sealing surface (63) from inside to outside, and the corrugated surface (62) is corrugated from inside to outside; the flange sealing surface (63) is a plane, can be arranged between the end part of the shielding cylinder (1) and the flange (4), and is provided with a bolt mounting hole (64) matched with the flange (4).
2. Seal for a shielding cartridge according to claim 1, characterized in that the corrugated surface (62) is provided with at least one corrugation which projects to the side remote from the sleeve (61).
3. A seal for a shielding cartridge according to claim 2, wherein said corrugated surface (62) is provided with a corrugation; the height of the corrugated bulges is 5-8mm, and the width of the corrugated bulges is 7-10 mm.
4. Seal for shielding cartridge according to claim 1, characterized in that the sealing surface is circular and has an outer diameter equal to the diameter of the shielding cartridge (1), the length of the sleeve (61) being 20-50 mm.
5. A shielding cylinder easy to install comprises a shielding cylinder (1), a middle piece joint (2) in the shielding cylinder (1) and two connecting and fixing pieces at two ends of the shielding cylinder (1), wherein the connecting and fixing pieces comprise a flange (4) and a bus O-shaped sealing ring (5) which are coaxial with the shielding cylinder (1); the connecting and fixing part is characterized by further comprising a sealing element (6) according to any one of claims 1 to 4, wherein the sealing element (6) is arranged coaxially with the shielding cylinder (1), a sleeve (61) of the sealing element (6) is sleeved on a pipe bus (7) on the corresponding side and is positioned outside the shielding cylinder (1), the flange (4) is sleeved outside the sleeve (61), a gap is arranged between the flange (4) and the sleeve (61), a bus O-shaped sealing ring (5) is arranged between the flange (4) and the sleeve (61), and a flange sealing surface (63) of the sealing element (6) is arranged between the flange (4) and the end part of the shielding cylinder (1) and is fastened together through a bolt (3).
6. The shielding cylinder easy to install according to claim 5, wherein the flange (4) comprises an inner flange (41) and an outer flange (42) which are arranged side by side, the inner flange (41) is pressed against a flange sealing surface (63), the inner sides of the contact positions of the inner flange (41) and the outer flange (42) are provided with inclined surfaces matched with the bus O-shaped sealing ring (5), the two inclined surfaces are matched to form a V-shaped ring groove (8) for accommodating the bus O-shaped sealing ring (5), the outer side of the bus O-shaped sealing ring (5) is embedded into the V-shaped ring groove (8), and the outer flange (42), the inner flange (41) and the flange sealing surface (63) are fixed at the end of the shielding cylinder (1) through bolts (3).
7. The shielding cylinder easy to install according to claim 6, characterized in that one side of the outer flange (42) close to the shielding cylinder (1) is provided with a ring groove (10) for accommodating a flange O-ring (9), the ring groove (10) is coaxial with the shielding cylinder (1) and is located on the inner side of the bolt (3), and the flange O-ring (9) is arranged between the ring groove (10) and the inner flange (41).
8. The shielding cylinder easy to install according to claim 6, wherein the shielding cylinder (1) comprises a cylinder body (11) and shielding cylinder flanges (12) at two ends of the cylinder body (11), one side of each shielding cylinder flange (12) is provided with an installation step (13) matched with the inner diameter of the cylinder body (11), the installation steps (13) are inserted into the cylinder body (11) and are fixed in an adhesive manner, and the outer flange (42), the inner flange (41), the flange sealing surface (63) and the shielding cylinder flanges (12) are fixed together through bolts (3).
9. Easy-to-install shielding cartridge according to claim 5, characterized in that the flange (4) has an inner diameter which is 3-6mm larger than the outer diameter of the sleeve (61), which sleeve (61) protrudes through the flange (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021429094.1U CN213521179U (en) | 2020-07-20 | 2020-07-20 | Sealing element for shielding cylinder and shielding cylinder easy to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021429094.1U CN213521179U (en) | 2020-07-20 | 2020-07-20 | Sealing element for shielding cylinder and shielding cylinder easy to install |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213521179U true CN213521179U (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021429094.1U Active CN213521179U (en) | 2020-07-20 | 2020-07-20 | Sealing element for shielding cylinder and shielding cylinder easy to install |
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| Country | Link |
|---|---|
| CN (1) | CN213521179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117835683A (en) * | 2024-01-29 | 2024-04-05 | 哈尔滨工业大学 | Flange connection type shielding cylinder suitable for long-distance magnetic field shielding |
-
2020
- 2020-07-20 CN CN202021429094.1U patent/CN213521179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117835683A (en) * | 2024-01-29 | 2024-04-05 | 哈尔滨工业大学 | Flange connection type shielding cylinder suitable for long-distance magnetic field shielding |
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