CN110984571B - Cable wall penetrating structure and wall penetrating construction method thereof - Google Patents
Cable wall penetrating structure and wall penetrating construction method thereof Download PDFInfo
- Publication number
- CN110984571B CN110984571B CN201911320694.6A CN201911320694A CN110984571B CN 110984571 B CN110984571 B CN 110984571B CN 201911320694 A CN201911320694 A CN 201911320694A CN 110984571 B CN110984571 B CN 110984571B
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- Prior art keywords
- pipe
- cable
- wall
- outer pipe
- groove
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/061—Non-reusable forms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/28—Installations of cables, lines, or separate protective tubing therefor in conduits or ducts pre-established in walls, ceilings or floors
- H02G3/286—Installations of cables, lines, or separate protective tubing therefor in conduits or ducts pre-established in walls, ceilings or floors in walls
Abstract
The invention relates to a cable wall-penetrating structure, which belongs to the technical field of cable wall penetration, and comprises a cable and an energy dissipation pipe penetrating through a wall body, wherein the energy dissipation pipe comprises an outer pipe and an inner pipe penetrating through the outer pipe; the side plates are arranged in two blocks and located at two ends of the outer pipe, the side plates are provided with openings, and the inner pipe is connected with the outer pipe through an elastic assembly. When the wall body receives impact vibration, the outer tube transmits impact force to the inner tube through the elastic assembly, the vibration reduction and energy absorption effects are achieved, the inner tube can displace in the outer tube within a certain range, the impact force is consumed, the impact on the cable in the inner tube is reduced, the cable damage is effectively reduced, and the service life of the cable is prolonged.
Description
Technical Field
The invention relates to the technical field of cable wall penetration, in particular to a cable wall penetration structure and a wall penetration construction method thereof.
Background
At present, a through-wall hole needs to be arranged when a cable passes through an outer wall of a structure. In the prior art, PVC pipes are usually placed in advance before concrete is poured on the outer wall, the diameter of the pipes is determined according to the diameter of the cable, and the length of the pipes is the same as the thickness of the wall. After concrete is poured, a wall through hole is formed in the outer wall, and the cable is blocked by adopting fireproof blocking mud after passing through the hole.
The Chinese patent with application publication number CN108808594A discloses a slip casting sealed cable wall bushing structure and a construction method thereof, wherein the slip casting sealed cable wall bushing structure comprises a cable, the cable is arranged in a bushing main body and penetrates through a wall body, the bushing main body is pre-embedded in the wall body, two ends of the bushing main body are respectively flush with two surfaces of the wall body, and a circle of water stop annular steel plate which is vertical to the axial direction is arranged outside the bushing main body; and a grouting pipe is arranged in the wall body and communicated with the sleeve main body. During construction, the sleeve main body and the grouting pipe are fixed at the relative position of the cable corresponding to the wall body, after the concrete pouring of the wall body is completed, the cable is arranged in the sleeve main body in a penetrating mode to complete the installation and the fixation of the cable, and finally mortar is poured into the sleeve main body through the grouting pipe.
The above prior art scheme has the following defects that the cable position is fixed tightly because mortar is poured into the sleeve main body. When earthquake or air attack is received, the wall body is impacted to vibrate, so that the cable pipeline is easy to damage.
Disclosure of Invention
One of the objectives of the present invention is to provide a cable wall penetrating structure, which has the advantages of reducing the impact on the cable and reducing the damage.
The technical purpose of the invention is realized by the following technical scheme:
a cable wall-penetrating structure comprises a cable and an energy dissipation pipe penetrating through a wall body, wherein the energy dissipation pipe comprises an outer pipe and an inner pipe penetrating through the outer pipe; the side plates are arranged in two blocks and located at two ends of the outer pipe, the side plates are provided with openings, and the inner pipe is connected with the outer pipe through an elastic assembly.
Through adopting above-mentioned technical scheme, when the wall body received shock vibration, the outer tube passed through elastic component with the impact force and transmitted for the inner tube, played the effect of damping energy-absorbing simultaneously, and the inner tube can take place the displacement in certain extent in the outer tube, consumes the impact force, reduces the impact that the cable in the inner tube received, reduces the cable damage effectively, the life of extension cable.
The present invention in a preferred example may be further configured to: the elastic assembly comprises an installation rod, a movable rod and a spring, the installation rod is arranged on the side plate along the axial direction of the outer pipe, the installation rod is provided with an installation groove along the axial direction of the installation rod, the movable rod is slidably arranged in the installation groove in a penetrating mode, and the spring is arranged in the installation groove; the one end of spring and the diapire butt of mounting groove, the one end butt that the other end and movable rod stretched into in the mounting groove, movable rod and inner tube fixed connection, the inner tube all is provided with elastic component along axial both ends.
Through adopting above-mentioned technical scheme, when the energy dissipation pipe received axial impact force, axial displacement took place for the outer tube for the inner tube, and the spring of inner tube one of them one end is compressed, hinders the inner tube and removes, plays the purpose of absorbing the dispersion impact force, and it is impaired to reduce the cable in the inner tube, and the setting of installation pole and movable rod plays the purpose of protection spring, extension spring life.
The present invention in a preferred example may be further configured to: the lateral wall that the curb plate is close to the inner tube is seted up convex recess, the lateral wall that the installation pole is close to the curb plate inlays and is equipped with the ball with recess rolling contact.
Through adopting above-mentioned technical scheme, when receiving radial impact force, the ball moves along the recess, and this process spring is compressed, plays the effect of energy-absorbing, and after the impact stops, under the effect of spring, the ball will be to the lowest motion of recess, realizes automatic re-setting.
The present invention in a preferred example may be further configured to: the inner pipe is hung in the outer pipe through an elastic rope, one end of the elastic rope is fixedly connected with the inner wall of the outer pipe, and the other end of the elastic rope is fixedly connected with the outer wall of the inner pipe; the elastic ropes are at least two and are distributed along the axial direction of the inner pipe.
By adopting the technical scheme, during installation, the inner pipe is hung in the outer pipe through the elastic rope, so that the inner pipe and the outer pipe are coaxial, and the ball is positioned at the lowest part of the groove; meanwhile, when the inner pipe shakes in the outer pipe, the elastic rope deforms, the energy absorption effect is achieved, and the vibration resistance is improved.
The present invention in a preferred example may be further configured to: the inner pipe is at least fixedly provided with two pairs of lifting rings, each pair of lifting rings comprises two lifting rings, the two lifting rings are symmetrically arranged on the inner pipe along a vertical plane, and two ends of the elastic rope respectively penetrate through the two lifting rings to be fixedly connected with the inner wall of the outer pipe.
Through adopting above-mentioned technical scheme, set up rings symmetry on the inner tube for the inner tube keeps the coaxial purpose with the outer tube, and sets up two pairs of rings, makes the inner tube more stable.
The present invention in a preferred example may be further configured to: the inner tube is provided with a guide rod along the axial fixation of the inner tube, the guide rod is provided with a limiting ring in a sliding sleeve mode and used for being abutted to the elastic rope, and a limiting part used for limiting the position of the limiting ring is arranged on the limiting ring.
By adopting the technical scheme, when in installation, after the inner pipe is adjusted to the middle position of the outer pipe, the position of the limiting ring is slid to enable the limiting ring to be tightly abutted against the elastic rope, so that the elastic rope just hoists the inner pipe to the middle position of the outer pipe, and then the position of the limiting ring is limited by the limiting piece; through the position of slip spacing ring, realize adjusting the length of elasticity rope, adjust the height of inner tube, be convenient for make inner tube and outer tube coaxial.
The present invention in a preferred example may be further configured to: the both ends of outer tube are provided with the closing plate that is used for sealing the trompil, the through-hole with cable looks adaptation is seted up to the closing plate, the outer tube is last fixedly to be provided with the stopper that is used for keeping away from the lateral wall butt of outer tube with the closing plate.
Through adopting above-mentioned technical scheme, the lateral wall butt of outer tube is kept away from to stopper and closing plate for the closing plate is inseparable with the curb plate laminating at outer tube both ends, improves sealed effect, prevents effectively that water from getting into in the outer tube.
The present invention in a preferred example may be further configured to: the lateral wall of the lateral plate, which is far away from the outer tube, is provided with a limiting groove, the sealing plate is positioned in the limiting groove, and the area of the sealing plate is smaller than that of the limiting groove.
Through adopting above-mentioned technical scheme, when the inner tube takes place radial motion, the displacement to a certain extent takes place for the closing plate under the drive of cable, and the setting of spacing groove prescribes a limit to the scope that the closing plate can the activity, prevents that the closing plate displacement is too big and break away from the trompil, guarantees sealed effect.
The invention also aims to provide a cable wall-through construction method, which has the advantages of reducing the impact on the cable and reducing the damage.
A cable wall-through construction method comprises the following steps:
s1, after the steel bars of the wall are bound, fixing the energy dissipation pipes at corresponding positions of the wall;
s2, pouring concrete of the wall and curing;
and S3, arranging the cable in the inner pipe to complete the installation and fixation of the cable.
Through adopting above-mentioned technical scheme, treat that the energy dissipation pipe installation is accomplished the back, pass the inner tube of energy dissipation pipe with the cable, the energy dissipation pipe plays the effect of protection cable, reduces the impact that the cable received, extension cable life.
In summary, the invention includes at least one of the following beneficial effects:
when the wall body is subjected to impact vibration, the outer pipe transmits impact force to the inner pipe through the elastic assembly, and plays a role in vibration reduction and energy absorption, the inner pipe can displace in a certain range in the outer pipe, the impact force is consumed, the impact on a cable in the inner pipe is reduced, the damage to the cable is effectively reduced, and the service life of the cable is prolonged;
when the impact force in the radial direction is received, the ball moves along the groove, the spring is compressed in the process to play a role of energy absorption, and after the impact stops, the ball moves to the lowest position of the groove under the action of the spring to realize automatic reset;
when the ball bearing is installed, the inner pipe is hung in the outer pipe through the elastic rope, so that the inner pipe and the outer pipe are coaxial, and the ball bearing is located at the lowest position of the groove; meanwhile, when the inner pipe shakes in the outer pipe, the elastic rope deforms, the energy absorption effect is achieved, and the vibration resistance is improved.
Drawings
FIG. 1 is a schematic structural view of a wall according to the present invention;
figure 2 is a schematic structural view of the energy dissipating pipe of the present invention;
figure 3 is a cross-sectional view of the energy dissipating pipe of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic structural view of the inner tube of the present invention;
fig. 6 is an enlarged view of a portion B in fig. 5.
Reference numerals: 1. a cable; 2. a wall body; 21. perforating; 3. an energy dissipation pipe; 31. an outer tube; 311. a side plate; 3111. opening a hole; 3112. a groove; 3113. a limiting groove; 312. a limiting block; 32. an inner tube; 321. an elastic cord; 322. a hoisting ring; 323. a guide bar; 4. an elastic component; 41. mounting a rod; 411. mounting grooves; 412. a ball bearing; 42. a movable rod; 43. a spring; 5. a limiting ring; 51. a limiting member; 52. a threaded hole; 6. a sealing plate; 61. and a through hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 and 2, a cable wall penetrating structure comprises a cable 1 and further comprises an energy dissipation pipe 3 arranged in a wall body 2 in a penetrating manner, the wall body 2 can be a partition wall of a building wall body 2 or a comprehensive pipe gallery, a through hole 21 is formed in the wall body 2, and the energy dissipation pipe 3 is arranged in the through hole 21 in a penetrating manner. The energy dissipation pipe 3 can be made of steel or PVC.
As shown in fig. 3, the energy dissipating pipe 3 includes an outer pipe 31 and an inner pipe 32 inserted into the outer pipe 31, and the cable 1 is inserted into the inner pipe 32. The outer tube 31 includes two side plates 311, and the side plates 311 are located at both ends of the outer tube 31. The side plate 311 may be fixed to the end of the outer tube 31 by bolts, or may be welded or bonded to the end of the outer tube 31. The side plate 311 is opened with an opening 3111, the opening 3111 is disposed in the middle of the side plate 311, and the opening 3111 is a circular hole with a diameter smaller than the outer diameter of the inner tube 32.
As shown in fig. 3 and 4, the inner tube 32 and the outer tube 31 are connected by an elastic assembly 4, and the elastic assembly 4 includes a mounting rod 41, a movable rod 42 and a spring 43. The inner tube 32 is provided with elastic assemblies 4 at both ends in the axial direction, and three elastic assemblies 4 are uniformly arranged at each end along the circumferential direction of the inner tube 32. The mounting rod 41 is arranged on the side plate 311 along the axial direction of the outer tube 31, the mounting rod 41 is provided with a mounting groove 411 along the axial direction of the mounting rod 41, the movable rod 42 is slidably arranged in the mounting groove 411 in a penetrating manner, and the movable rod 42 is fixedly connected with the inner tube 32. The spring 43 is disposed in the mounting groove 411, one end of the spring 43 abuts against the bottom wall of the mounting groove 411, and the other end of the spring 43 abuts against one end of the movable rod 42 extending into the mounting groove 411.
When the energy dissipation pipe 3 is subjected to axial impact force, the inner pipe 32 is axially displaced relative to the outer pipe 31, the spring 43 at one end of the inner pipe 32 is compressed to block the inner pipe 32 from moving, the purpose of absorbing and dispersing the impact force is achieved, and the damage to the cable 1 in the inner pipe 32 is reduced; the installation rod 41 and the movable rod 42 are arranged to protect the spring 43, so that the service life of the spring 43 is prolonged.
As shown in fig. 3 and 4, the side wall of the side plate 311 close to the inner tube 32 is provided with an arc-shaped groove 3112, and the side wall of the mounting rod 41 close to the side plate 311 is embedded with a ball 412 in rolling contact with the groove 3112. When the radial impact force is applied, the ball 412 moves along the groove 3112, in the process, the spring 43 is compressed to absorb energy, and after the impact stops, the ball 412 moves to the lowest position of the groove 3112 under the action of the spring 43, so that the automatic reset is realized.
As shown in fig. 3 and 4, sealing plates 6 for sealing the opening 3111 are disposed at two ends of the outer tube 31, through holes 61 adapted to the cables 1 are disposed on the sealing plates 6, and the cables 1 are attached to the hole walls of the through holes 61. A limit groove 3113 is formed in the side wall of the side plate 311 away from the outer tube 31, the sealing plate 6 is located in the limit groove 3113, and the area of the sealing plate 6 is smaller than that of the limit groove 3113; the stopper groove 3113 is a circular groove, and the sealing plate 6 is a circular plate. When the sealing plate 6 abuts against the side wall of the stopper groove 3113, the sealing plate 6 is still shielded from the opening 3111. The outer tube 31 is fixedly provided with a stopper 312 for abutting against the side wall of the sealing plate 6 away from the outer tube 31, and the stoppers 312 at each end of the outer tube 31 are provided in three pieces and evenly distributed at intervals along the circumferential direction of the outer tube 31.
When inner tube 32 takes place radial motion, the displacement to a certain extent takes place for closing plate 6 under cable 1's drive, and spacing groove 3113's setting restricts the scope that closing plate 6 can move about, prevents that closing plate 6 displacement is too big and break away from trompil 3111, guarantees sealed effect. And the limiting block 312 is abutted against the side wall of the sealing plate 6 far away from the outer tube 31, so that the sealing plate 6 is tightly attached to the side plates 311 at the two ends of the outer tube 31, the sealing effect is improved, and water is effectively prevented from entering the outer tube 31.
As shown in fig. 3 and 5, the inner tube 32 is suspended in the outer tube 31 by an elastic cord 321, and the elastic cord 321 is made of latex yarn. One end of the elastic cord 321 is fixedly connected with the inner wall of the outer tube 31, and the other end is fixedly connected with the outer wall of the inner tube 32. The elastic cords 321 are at least two and are distributed along the axial direction of the inner tube 32. At least two pairs of hanging rings 322 are fixedly arranged on the inner pipe 32, in the embodiment, two groups of hanging rings 322 are symmetrically arranged on the inner pipe 32, and the distance from each hanging ring 322 to the end surface of the inner pipe 32 is equal. Each pair of hanging rings 322 comprises two hanging rings 322, the two hanging rings 322 are symmetrically arranged on the inner pipe 32 along the vertical plane, and two ends of the elastic rope 321 respectively penetrate through the two hanging rings 322 and are fixedly connected with the inner wall of the outer pipe 31.
During installation, the inner tube 32 is suspended in the outer tube 31 by the elastic cord 321, so that the inner tube 32 is coaxial with the outer tube 31, and the ball 412 is located at the lowest position of the groove 3112; meanwhile, when the inner tube 32 shakes in the outer tube 31, the elastic rope 321 deforms to absorb energy, and the anti-vibration capability is improved. The hanging rings 322 are symmetrically arranged on the inner pipe 32 so that the inner pipe 32 is kept coaxial with the outer pipe 31, and two pairs of hanging rings 322 are arranged so that the inner pipe 32 is more stable.
As shown in fig. 5 and 6, a guide rod 323 is fixedly disposed on the inner tube 32 along the axial direction of the inner tube 32, a stop ring 5 for abutting against the elastic cord 321 is slidably sleeved on the guide rod 323, and a position limiting member 51 for limiting the position of the stop ring 5 is disposed on the stop ring 5. In this embodiment, the limiting member 51 is an abutting bolt, the limiting ring 5 is provided with a threaded hole 52 penetrating through the guide rod 323, and the abutting bolt is in threaded connection with the threaded hole 52.
During installation, after the inner pipe 32 is adjusted to the middle position of the outer pipe 31, the position of the limiting ring 5 is slid, so that the limiting ring 5 is tightly abutted against the elastic rope 321, the elastic rope 321 just hoists the inner pipe 32 to the middle position of the outer pipe 31, and then the position of the limiting ring 5 is limited by the limiting piece 51; the length of the elastic rope 321 and the height of the inner tube 32 are adjusted by sliding the position of the limiting ring 5, so that the inner tube 32 and the outer tube 31 are coaxial.
The implementation principle is as follows: when the wall body 2 is subjected to impact vibration and impact force is applied to the outer pipe 31, the inner pipe 32 is axially displaced relative to the outer pipe 31, the spring 43 at one end of the inner pipe 32 is compressed to block the inner pipe 32 from moving, the purpose of absorbing and dispersing the impact force is achieved, and the damage to the cable 1 in the inner pipe 32 is reduced; the inner tube 32 can displace in a certain range in the outer tube 31, so that impact force is consumed, impact on the cable 1 in the inner tube 32 is reduced, damage to the cable 1 is effectively reduced, and the service life of the cable 1 is prolonged.
Example two:
a wall-through construction method of a cable 1 comprises the following steps:
s1, after the reinforcement of the wall body 2 is bound, fixing the energy dissipation pipe 3 to the corresponding position of the wall body 2;
s2, pouring and curing the concrete of the wall body 2;
and S3, arranging the cable 1 in the inner pipe 32, and finishing the installation and the fixation of the cable 1.
After the energy dissipation pipe 3 is installed, the cable 1 penetrates through the inner pipe 32 of the energy dissipation pipe 3, the energy dissipation pipe 3 plays a role in protecting the cable 1, impact on the cable 1 is reduced, and the service life of the cable 1 is prolonged.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (5)
1. A cable wall penetrating structure comprises a cable (1), and is characterized in that: the energy dissipation device is characterized by further comprising an energy dissipation pipe (3) penetrating through the wall body (2), wherein the energy dissipation pipe (3) comprises an outer pipe (31) and an inner pipe (32) penetrating through the outer pipe (31), the cable (1) penetrates through the inner pipe (32), and the outer pipe (31) comprises a side plate (311); the two side plates (311) are arranged and positioned at two ends of the outer pipe (31), the side plates (311) are provided with holes (3111), and the inner pipe (32) is connected with the outer pipe (31) through an elastic component (4); the inner pipe (32) is hung in the outer pipe (31) through an elastic rope (321), one end of the elastic rope (321) is fixedly connected with the inner wall of the outer pipe (31), and the other end of the elastic rope is fixedly connected with the outer wall of the inner pipe (32); at least two elastic ropes (321) are arranged and distributed along the axial direction of the inner pipe (32); the inner pipe (32) is at least fixedly provided with two pairs of hanging rings (322), each pair of hanging rings (322) comprises two hanging rings (322), the two hanging rings (322) are symmetrically arranged on the inner pipe (32) along a vertical plane, and two ends of the elastic rope (321) respectively penetrate through the two hanging rings (322) to be fixedly connected with the inner wall of the outer pipe (31); the inner tube (32) are gone up and are provided with guide arm (323) along the axial fixity of inner tube (32), sliding sleeve is equipped with spacing ring (5) that are used for with elasticity rope (321) butt on guide arm (323), be provided with locating part (51) that are used for injecing spacing ring (5) position on spacing ring (5).
2. A cable feed-through structure according to claim 1, wherein: the elastic component (4) comprises an installation rod (41), a movable rod (42) and a spring (43), the installation rod (41) is arranged on the side plate (311) along the axial direction of the outer pipe (31), the installation rod (41) is provided with an installation groove (411) along the axial direction of the installation rod, the movable rod (42) is slidably arranged in the installation groove (411), and the spring (43) is arranged in the installation groove (411); the one end of spring (43) and the diapire butt of mounting groove (411), the other end stretches into the one end butt in mounting groove (411) with movable rod (42), movable rod (42) and inner tube (32) fixed connection, inner tube (32) all are provided with elastic component (4) along axial both ends.
3. A cable feed-through structure according to claim 2, wherein: the side wall of the side plate (311) close to the inner tube (32) is provided with a circular arc-shaped groove (3112), and the side wall of the mounting rod (41) close to the side plate (311) is embedded with a ball (412) in rolling contact with the groove (3112).
4. A cable feed-through structure according to claim 1, wherein: the cable sealing device is characterized in that sealing plates (6) used for sealing the opening (3111) are arranged at two ends of the outer pipe (31), through holes (61) matched with the cable (1) are formed in the sealing plates (6), and a limiting block (312) used for being abutted to the side wall, far away from the outer pipe (31), of the sealing plate (6) is fixedly arranged on the outer pipe (31).
5. A cable feed-through structure according to claim 4, wherein: the lateral wall of lateral plate (311) far away from outer tube (31) has seted up spacing groove (3113), closing plate (6) are located spacing groove (3113), the area of closing plate (6) is less than the area of spacing groove (3113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911320694.6A CN110984571B (en) | 2019-12-19 | 2019-12-19 | Cable wall penetrating structure and wall penetrating construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911320694.6A CN110984571B (en) | 2019-12-19 | 2019-12-19 | Cable wall penetrating structure and wall penetrating construction method thereof |
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| Publication Number | Publication Date |
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| CN110984571A CN110984571A (en) | 2020-04-10 |
| CN110984571B true CN110984571B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911320694.6A Active CN110984571B (en) | 2019-12-19 | 2019-12-19 | Cable wall penetrating structure and wall penetrating construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH087686A (en) * | 1994-06-16 | 1996-01-12 | Furukawa Electric Co Ltd:The | Grommet |
| JPH0992061A (en) * | 1995-09-25 | 1997-04-04 | Sumitomo Wiring Syst Ltd | Grommet |
| GB2351790A (en) * | 1999-07-02 | 2001-01-10 | Pullman Co | Crimped bushing |
| CN205595722U (en) * | 2016-04-23 | 2016-09-21 | 重庆水利电力职业技术学院 | A wear wall sleeve that is used for shock -absorbing function that has that electric power cable arranged |
| CN207752394U (en) * | 2018-02-11 | 2018-08-21 | 陕西东方经典实景文化发展有限公司 | A kind of music acquisition controller Installation cabinet |
| CN108443645A (en) * | 2018-04-04 | 2018-08-24 | 山西省工业设备安装集团有限公司 | A kind of anti-seismic heat-preservation heat supply pipeline and preparation method thereof |
| CN108689293A (en) * | 2018-07-20 | 2018-10-23 | 无锡市航鹄精密机械有限公司 | A kind of hoisting device for cylindrical body |
| CN108808594A (en) * | 2018-06-14 | 2018-11-13 | 国网浙江省电力有限公司宁波供电公司 | The cable penetration sleeve structure and its construction method of slip casting sealing |
-
2019
- 2019-12-19 CN CN201911320694.6A patent/CN110984571B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH087686A (en) * | 1994-06-16 | 1996-01-12 | Furukawa Electric Co Ltd:The | Grommet |
| JPH0992061A (en) * | 1995-09-25 | 1997-04-04 | Sumitomo Wiring Syst Ltd | Grommet |
| GB2351790A (en) * | 1999-07-02 | 2001-01-10 | Pullman Co | Crimped bushing |
| CN205595722U (en) * | 2016-04-23 | 2016-09-21 | 重庆水利电力职业技术学院 | A wear wall sleeve that is used for shock -absorbing function that has that electric power cable arranged |
| CN207752394U (en) * | 2018-02-11 | 2018-08-21 | 陕西东方经典实景文化发展有限公司 | A kind of music acquisition controller Installation cabinet |
| CN108443645A (en) * | 2018-04-04 | 2018-08-24 | 山西省工业设备安装集团有限公司 | A kind of anti-seismic heat-preservation heat supply pipeline and preparation method thereof |
| CN108808594A (en) * | 2018-06-14 | 2018-11-13 | 国网浙江省电力有限公司宁波供电公司 | The cable penetration sleeve structure and its construction method of slip casting sealing |
| CN108689293A (en) * | 2018-07-20 | 2018-10-23 | 无锡市航鹄精密机械有限公司 | A kind of hoisting device for cylindrical body |
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| Publication number | Publication date |
|---|---|
| CN110984571A (en) | 2020-04-10 |
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