CN112886498B - Cable pipe orifice plugging device - Google Patents

Cable pipe orifice plugging device Download PDF

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Publication number
CN112886498B
CN112886498B CN202110328691.8A CN202110328691A CN112886498B CN 112886498 B CN112886498 B CN 112886498B CN 202110328691 A CN202110328691 A CN 202110328691A CN 112886498 B CN112886498 B CN 112886498B
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CN
China
Prior art keywords
ring
sealing
cable
wall
sealing gasket
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CN202110328691.8A
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Chinese (zh)
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CN112886498A (en
Inventor
韩彩平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd
Youxi Power Supply Co of State Grid Fujian Electric Power Co Ltd
Original Assignee
Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd
Youxi Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Application filed by Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd, Youxi Power Supply Co of State Grid Fujian Electric Power Co Ltd filed Critical Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority to CN202110328691.8A priority Critical patent/CN112886498B/en
Publication of CN112886498A publication Critical patent/CN112886498A/en
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Publication of CN112886498B publication Critical patent/CN112886498B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406Details thereof
    • H02G3/0418Covers or lids; Their fastenings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/14Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Gasket Seals (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

The invention discloses a cable pipe orifice plugging device, which comprises a cover plate arranged at the position of a cable pipe orifice, wherein an inner ring is arranged at the axis of the cover plate and is inserted into a cable pipe, an inner ring for connection is arranged at the inner wall of the inner ring, a movable ring is connected with the inner ring through threads, a separation ring is arranged at the middle position of the inner wall of the movable ring, sealing rings made of rubber are arranged at two sides of the separation ring inside the movable ring, the sealing rings are provided with hollow cavities, compression rings are screwed in the left end and the right end of the movable ring, the compression rings act on the sealing rings after being screwed in, and the inner diameter of the sealing rings is reduced after being pressed; the device is sealed in an expansion sealing mode, and has higher sealing performance.

Description

Cable pipe orifice plugging device
Technical Field
The invention relates to a cable pipe orifice plugging device.
Background
The cable pipe is used for paving the pipeline between two adjacent cable wells, and the cable passes through the cable pipe, and the cable docks in getting into the cable well and uses equipment, consequently, need install the plugging device in the mouth of pipe position department of cable pipe, and the effect of plugging device is to seal the clearance position department of cable pipe and cable, avoids the pest, and the mouse gets into the intraductal existence of cable and multiplies. Ensure the smoothness of the cable duct and avoid the damage of the cable caused by gnawing.
In the plugging device in the prior art, a cover in threaded connection is mainly adopted, a through hole penetrating through a cable is formed in the axis of the cover, a sealing gasket is arranged on the hole wall of the through hole, and sealing is formed after the sealing gasket is contacted with the outer wall of the cable.
In this sealing mode, the thickness of the sealing gasket is fixed, so that the assembly is difficult due to the excessive thickness, and the assembly gap is caused due to the insufficient thickness. And because the cable has dead weight, the position department of inner circle bottom of consequently sealed pad bears the pressure, and long-time use causes to have the clearance between sealed pad and the cable.
Therefore, the cable tube opening plugging device which is closed in an expansion sealing mode and has higher sealing performance is designed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cable tube mouth plugging device which is sealed in an expansion sealing mode and has higher sealing performance.
In order to solve the problems, the invention adopts the following technical scheme:
a cable pipe orifice plugging device comprises a cover plate installed at the position of a cable pipe orifice, wherein an inner ring is arranged at the axis center of the cover plate, the inner ring is inserted into a cable pipe, an inner ring for connection is arranged at the inner wall of the inner ring, a movable ring is connected with the inner ring through threads of the inner ring, a separating ring is arranged at the middle position of the inner wall of the movable ring, sealing rings made of rubber are arranged at the two sides of the separating ring inside the movable ring, the sealing rings are provided with hollow cavities, pressing rings are screwed in the left end and the right end of the movable ring, the pressing rings are screwed in and act on the sealing rings, the inner diameter of the compressed sealing rings is reduced, cables penetrate through the sealing rings at the two sides, the inner diameter of the compressed sealing rings is reduced, interference fit is realized between the inner wall of the sealing rings and the cables, and matched cables between the sealing rings at the two sides form a sealing cavity, an injection hole is formed in the outer wall of the movable ring, a special-shaped guide pipe is connected to the injection hole in a threaded mode, sealing oil is injected through the special-shaped guide pipe, and the sealing cavity is filled with the sealing oil; in the structure, firstly, the sealing rings and the movable rings are assembled, then the whole device is sleeved outside the cable, the inner pressing ring is firstly rotated, then the outer pressing ring is rotated, and the two sealing rings are extruded after the pressing rings on the two sides rotate, so that effective expansion sealing is formed between the sealing rings and the cable shell; and then assembling the cover plate and the cable tube to complete sealing. Finally, sealing oil is injected through the special-shaped guide pipe, and the sealing performance is further improved through an oil liquid sealing mode.
Preferably, an expansion sleeve is driven into the wall of the cable well, a long bolt is matched with the expansion sleeve, and a nut is matched with the long bolt after the long bolt penetrates through the cover plate; the above structure is for convenience of applying an assembling pressure to the cap plate.
Preferably, an outer ring is arranged on the left side of the cover plate, a gap is formed between the outer ring and the inner ring, a sealing gasket is arranged at the gap, and a plurality of short bolts are annularly arranged on the left end face of the inner ring; the sealing gasket is provided with a conical outer sealing surface, an annular clamping groove is formed in the inner side of the sealing gasket, the inner ring is inserted into the clamping groove, and the short bolt penetrates through the sealing gasket and then is matched with a first nut; the inner diameter a of the sealing gasket is smaller than that of the inner ring, when the movable ring is screwed in to the limit, the movable ring is limited through the sealing gasket, and the sealing gasket is extruded after the movable ring is screwed in, so that sealing is formed between the end part of the movable ring and the sealing gasket; the outer wall of the pressure ring positioned on the left side and the inner wall of the sealing gasket form a seal after contact; the outer ring is attached to the outer wall of the cable tube, when the cover plate moves towards the cable tube, the end part of the cable tube extrudes the sealing gasket, so that the thickness of the sealing gasket is expanded, and the sealing gasket is respectively extruded with the inner ring and the outer ring to form sealing; the sealing gasket has the primary functions of solving the sealing problem of the outer ring and the cable duct, and then the thickness of the sealing gasket is increased after the sealing gasket is pressed to form sealing between the outer ring and the inner ring; when the movable ring is screwed in, the movable ring and the sealing gasket are contacted to form four times of sealing. The outer wall contact of clamping ring seals up the inner wall of packing for form sealedly after the one end contact sealing ring of sealing ring, the sealed inner wall that fills up of outer wall contact of sealing ring forms sealedly, through the mutual cooperation of above-mentioned technical scheme, can effectual shutoff fit-up gap.
Preferably, the gasket has a hollow and independently closed air chamber; the setting of air chamber makes things convenient for sealed pad to carry out deformation after the pressurized, and gaseous compression back has tension simultaneously, can seal the pad respectively with the contact pressure between inner ring and the outer loop, increase sealed effect.
Preferably, one end of the special-shaped conduit, which is far away from the injection hole, extends to the outside of the cover plate, and the end is vertically upwards to form a straight pipe part, and a pipe cover is screwed at the upper end of the straight pipe part; the oil level of the sealing oil is kept in the straight pipe part, and scales are arranged outside the straight pipe part; the liquid level of the sealing oil in the straight pipe part can be observed by means of the scales, normal volatilization is removed, the detection is carried out once every 3 months, and if the liquid level drops by more than 2mm, whether leakage exists or not needs to be considered.
Preferably, a rib is arranged between the outer ring and the cover plate; the arrangement of the rib plate is to increase the bending strength of the cover plate.
Preferably, the end face of the compression ring, which is far away from the sealing ring, is annularly provided with a plurality of stress holes for applying rotation torque; the rotation torque is conveniently applied through the stress hole, and the position of the pressure ring is conveniently adjusted.
The invention has the beneficial effects that:
1) the device enables the inner diameter of the sealing ring to expand and then to be uniformly attached to the surface of a cable under the action of the compression ring, and the inside of the sealing ring is hollow and closed, so that the pressure can be balanced after the sealing ring bears the pressure of the cable;
2) in the device, an inner sealing ring and an outer sealing ring are arranged, and secondary contact can be formed between the inner sealing ring and the outer sealing ring and the cable through the two sealing rings to generate secondary sealing;
3) in the device, sealing oil can be filled between two sealing rings, the first function of the sealing oil is to detect whether a sealing gap exists, when a gap exists between one sealing ring and a cable, the leakage of the sealing oil can be caused, when the sealing oil leaks, the maintenance is carried out at the first time to ensure the sealing property, and the filling of the sealing oil can improve the sealing effect; the infiltration of moisture is reduced;
4) the structure of this device is comparatively simple, and the construction and installation is comparatively convenient, is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
FIG. 4 is a cross-sectional view of the gasket;
fig. 5 is a side view of the cover plate.
Detailed Description
All of the features disclosed in this specification, or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
As shown in fig. 1 to 5.
Example 1
A cable pipe orifice stopper comprises a cover plate 1 installed at the position of a cable pipe orifice, wherein an inner ring 101 is arranged at the axis center of the cover plate 1, the inner ring 101 is inserted into a cable pipe, an inner ring 121 for connection is arranged at the inner wall of the inner ring 101, a movable ring 2 is connected with the inner ring 121 in a threaded manner, a separation ring 201 is arranged at the middle position of the inner wall of the movable ring 2, sealing rings 202 made of rubber are arranged at two sides of the separation ring 201 inside the movable ring 2, the sealing rings 202 are provided with hollow cavities 203, compression rings 204 are screwed in the left end and the right end of the movable ring 2, the compression rings 204 are screwed in the sealing rings 202, the inner diameter of the sealing rings 202 is reduced after the sealing rings 202 are pressed, cables penetrate through the sealing rings 202 at two sides, and the inner diameter of the sealing rings 202 is reduced after the sealing rings 202 are pressed, so that the inner walls of the sealing rings 202 and the cables are in interference fit, a sealing cavity 205 is formed between the sealing rings 202 on the two sides by matching cables, an injection hole 206 is arranged on the outer wall of the movable ring 2, a special-shaped conduit 3 is in threaded connection with the injection hole 206, sealing oil is injected through the special-shaped conduit 3, and the sealing cavity 205 is filled with the sealing oil; in the structure, firstly, the sealing rings 202 and the movable ring 2 are assembled, then the whole device is sleeved outside the cable, firstly, the pressing ring 204 on the inner side is rotated, then, the pressing ring 204 on the outer side is rotated, and after the pressing rings 204 on the two sides are rotated, the two sealing rings 202 are extruded, so that effective expansion sealing is formed between the sealing rings 202 and the cable shell; and then assembling the cover plate 1 and the cable tube, namely completing the sealing. Finally, sealing oil is injected through the special-shaped guide pipe 3, and the sealing performance is further improved through an oil liquid sealing mode.
Example 2
An expansion sleeve 4 is driven into the well wall of the cable well, a long bolt 401 is matched with the expansion sleeve 4, and a nut 402 is matched after the long bolt 401 penetrates through the cover plate 1; the above-described structure is for the convenience of applying the assembling pressure to the cap plate 1.
Example 3
An outer ring 102 is arranged on the left side of the cover plate 1, a space is formed between the outer ring 102 and the inner ring 101, a sealing gasket 5 is arranged at the position of the space, and a plurality of short bolts 103 are annularly arranged on the left end face of the inner ring 121; the sealing gasket 5 is provided with a conical outer sealing surface 501, an annular clamping groove 502 is formed in the inner side of the sealing gasket 5, the inner ring 101 is inserted into the clamping groove 502, and the short bolt 103 penetrates through the sealing gasket 5 and then is matched with the first nut 104; the inner diameter a of the sealing gasket 5 is smaller than that of the inner ring 121, when the movable ring 2 is screwed in to the limit, the movable ring 2 is limited through the sealing gasket 5, and the sealing gasket 5 is extruded after the movable ring 2 is screwed in, so that sealing is formed between the end part of the movable ring 2 and the sealing gasket 5; the outer wall of the pressure ring 204 on the left side is in contact with the inner wall of the sealing gasket 5 to form a seal; the outer ring 102 is attached to the outer wall of the cable tube, when the cover plate 1 moves towards the cable tube, the end part of the cable tube presses the sealing gasket 5, so that the thickness of the sealing gasket 5 is expanded, and the sealing gasket 5 is respectively pressed with the inner ring 101 and the outer ring 102 to form sealing; the sealing gasket 5 has the primary function of solving the sealing problem of the outer ring 102 and the cable duct, and the thickness of the sealing gasket 5 is increased after the sealing gasket is pressed to form sealing between the outer ring 102 and the inner ring 101, so that secondary sealing can be formed by the technical scheme, namely primary sealing in contact with the outer ring 102 and secondary sealing in contact with the inner ring 101, and the sealing gasket is inserted into the cable duct through the outer sealing surface 501 to realize tertiary sealing; when the movable ring 2 is screwed in, the contact between the movable ring 2 and the sealing gasket 5 forms four times of sealing. The outer wall of the pressing ring 204 contacts the inner wall of the sealing gasket 5, so that one end of the sealing ring 204 contacts the sealing ring 202 to form sealing, and the outer wall of the sealing ring 204 contacts the inner wall of the sealing gasket 5 to form sealing.
Example 4
The gasket 5 has a hollow and independently closed air chamber 511; the air chamber 511 is arranged to facilitate deformation of the sealing gasket 5 after being compressed, and meanwhile, the air chamber 511 has tension after being compressed, so that the sealing gasket 5 can be in contact with the inner ring 101 and the outer ring 102 respectively under pressure, and the sealing effect is improved.
Example 5
One end of the special-shaped conduit 3, which is far away from the injection hole 206, extends to the outside of the cover plate 1, and the end is vertically upwards to form a straight pipe part 301, and a pipe cover 333 is screwed on the upper end of the straight pipe part 301; the oil level of the seal oil is held inside the straight tube portion 301, and scales are provided outside the straight tube portion 301; the liquid level of the sealing oil in the straight pipe part 301 can be observed by means of the scales, normal volatilization is removed, the detection is carried out once every 3 months, and if the liquid level drops by more than 2mm, whether leakage exists or not needs to be considered.
Example 6
A rib 111 is arranged between the outer ring 102 and the cover plate 1; the ribs 111 are provided to increase the bending strength of the cover plate 1.
Example 7
A plurality of force bearing holes 222 for applying rotation torque are annularly arranged on one end face of the pressing ring 204 far away from the sealing ring 202; the rotation torque is conveniently applied through the force-bearing hole 222, so that the position of the pressure ring 204 is conveniently adjusted.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A cable pipe orifice plugging device is characterized in that: including one install in apron (1) of cable duct mouth of pipe position department, the axle center department of apron (1) is provided with inner ring (101), inner ring (101) insert to the cable duct in inner ring (101) the inner wall department of inner ring (101) is provided with inner circle (121) of connecting usefulness, through inner circle (121) threaded connection has activity ring (2), the inner wall intermediate position department of activity ring (2) is provided with separating ring (201) the inside of activity ring (2) is located the both sides of separating ring (201) are provided with sealing ring (202) of rubber material, sealing ring (202) have well cavity (203) the equal screw in both ends of activity ring (2) have clamping ring (204), act on after the screw in of clamping ring (204) sealing ring (202), the internal diameter reduces after sealing ring (202) the pressurized, and the cable passes sealing ring (202) of both sides, the inner diameter of the sealing ring (202) is reduced after the sealing ring (202) is pressed, so that the inner wall of the sealing ring (202) is in interference fit with the cable, a sealing cavity (205) is formed between the sealing rings (202) on two sides by matching with a shell of the cable, an injection hole (206) is arranged on the outer wall of the movable ring (2), a special-shaped guide pipe (3) is in threaded connection with the injection hole (206), sealing oil is injected through the special-shaped guide pipe (3), and the sealing cavity (205) is filled with the sealing oil; an outer ring (102) is arranged on the left side of the cover plate (1), a space is formed between the outer ring (102) and the inner ring (101), a sealing gasket (5) is arranged at the position of the space, and a plurality of short bolts (103) are annularly arranged on the left side end face of the inner ring (121); the sealing gasket (5) is provided with a conical outer sealing surface (501), an annular clamping groove (502) is formed in the inner side of the sealing gasket (5), the inner ring (101) is inserted into the clamping groove (502), and the short bolt (103) penetrates through the sealing gasket (5) and then is matched with the first nut (104); the inner diameter a of the sealing gasket (5) is smaller than that of the inner ring (121), when the movable ring (2) is screwed in to the limit, the movable ring (2) is limited through the sealing gasket (5), and the sealing gasket (5) is extruded after the movable ring (2) is screwed in, so that sealing is formed between the end part of the movable ring (2) and the sealing gasket (5); the outer wall of the pressure ring (204) on the left side is in contact with the inner wall of the sealing gasket (5) to form sealing; outer ring (102) laminating cable duct's outer wall, work as when apron (1) moves towards the cable duct direction, the tip extrusion of cable duct sealed pad (5), make the thickness expansion of sealed pad (5), sealed pad (5) respectively with inner ring (101) and outer loop (102) extrusion form sealedly.
2. The cable nozzle stopper according to claim 1, wherein: an expansion sleeve (4) is driven into the well wall of the cable well, a long bolt (401) is matched with the expansion sleeve (4), and the long bolt (401) penetrates through the cover plate (1) and then is matched with a nut (402).
3. The cable nozzle stopper according to claim 1, wherein: the sealing gasket (5) is provided with a hollow and independently closed air chamber (511).
4. The cable nozzle stopper according to claim 1, wherein: one end of the special-shaped conduit (3) far away from the injection hole (206) extends to the outside of the cover plate (1), and the end is vertically upwards to form a straight pipe part (301), and a pipe cover (333) is screwed at the upper end of the straight pipe part (301); the oil level of the seal oil is held in the straight tube portion (301), and scales are provided outside the straight tube portion (301).
5. The cable nozzle stopper according to claim 1, wherein: a rib plate (111) is arranged between the outer ring (102) and the cover plate (1).
6. The cable nozzle stopper according to claim 1, wherein: and a plurality of stress holes (222) for applying rotation torque are annularly arranged on one end face of the pressing ring (204) far away from the sealing ring (202).
CN202110328691.8A 2021-03-26 2021-03-26 Cable pipe orifice plugging device Active CN112886498B (en)

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Application Number Priority Date Filing Date Title
CN202110328691.8A CN112886498B (en) 2021-03-26 2021-03-26 Cable pipe orifice plugging device

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Application Number Priority Date Filing Date Title
CN202110328691.8A CN112886498B (en) 2021-03-26 2021-03-26 Cable pipe orifice plugging device

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CN112886498A CN112886498A (en) 2021-06-01
CN112886498B true CN112886498B (en) 2022-07-15

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872141B (en) * 2021-09-09 2023-02-17 国网河南省电力公司孟州市供电公司 Electric power pipeline plugging device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201723713U (en) * 2009-11-27 2011-01-26 陈兆红 Sealing device for hydraulic cylinder
JP2011021669A (en) * 2009-07-15 2011-02-03 Arai Seisakusho Co Ltd Sealing device
CN107781306A (en) * 2017-10-31 2018-03-09 响水县冠龙轴承座制造有限公司 A kind of strong bearing block of sealing
CN207134746U (en) * 2017-07-27 2018-03-23 开开电缆科技有限公司 Fire resisting high temperature cable tube plugging device
CN208719348U (en) * 2018-09-11 2019-04-09 湖北新置科技股份有限公司 A kind of anti-beat static seal device of row's epoxy-type
CN110571727A (en) * 2019-09-25 2019-12-13 义乌市桥母电气有限公司 cable pipeline plugging device with high sealing performance
CN211629839U (en) * 2020-01-17 2020-10-02 浙江集弘电气有限公司 Cable pipe mouth sealing and plugging device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011021669A (en) * 2009-07-15 2011-02-03 Arai Seisakusho Co Ltd Sealing device
CN201723713U (en) * 2009-11-27 2011-01-26 陈兆红 Sealing device for hydraulic cylinder
CN207134746U (en) * 2017-07-27 2018-03-23 开开电缆科技有限公司 Fire resisting high temperature cable tube plugging device
CN107781306A (en) * 2017-10-31 2018-03-09 响水县冠龙轴承座制造有限公司 A kind of strong bearing block of sealing
CN208719348U (en) * 2018-09-11 2019-04-09 湖北新置科技股份有限公司 A kind of anti-beat static seal device of row's epoxy-type
CN110571727A (en) * 2019-09-25 2019-12-13 义乌市桥母电气有限公司 cable pipeline plugging device with high sealing performance
CN211629839U (en) * 2020-01-17 2020-10-02 浙江集弘电气有限公司 Cable pipe mouth sealing and plugging device

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