CN108693610B - Optical distribution cabinet convenient for optical cable to enter cabinet - Google Patents
Optical distribution cabinet convenient for optical cable to enter cabinet Download PDFInfo
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- CN108693610B CN108693610B CN201810518800.0A CN201810518800A CN108693610B CN 108693610 B CN108693610 B CN 108693610B CN 201810518800 A CN201810518800 A CN 201810518800A CN 108693610 B CN108693610 B CN 108693610B
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- cabinet
- optical
- optical cable
- bottom plate
- cabinet body
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4457—Bobbins; Reels
Abstract
The invention discloses an optical distribution cabinet convenient for an optical cable to enter the cabinet, and belongs to the technical field of optical cable cabinet equipment. It includes the cabinet body, the base of the cabinet body includes bottom plate frame, a plurality of module board and a plurality of fixed slat, the bottom plate frame includes the rectangle frame and sets up a plurality of bracing pieces on the relative both sides of rectangle frame, it is a plurality of the module board sets up on the bottom plate frame, the module board is through adjacent two the bracing piece supports, and is a plurality of fixed slat sets up on the module board, fixed slat with the bracing piece is perpendicular, the other relative both sides edge of rectangle frame all sets up a plurality of first screws, the both ends of fixed slat all set up the second screw, first screw with the second screw passes through bolted connection. The invention can simplify the working process, shorten the working time of laying the optical cable and ensure the safety of personnel and equipment.
Description
Technical Field
The invention relates to the technical field of optical cable cabinet equipment, in particular to an optical distribution cabinet convenient for an optical cable to enter the cabinet.
Background
The optical distribution cabinet, i.e., an optical fiber distribution box (ODB), is suitable for the distribution connection between an optical cable and optical communication equipment, and an optical signal is led out by an optical jumper through an adapter in the distribution box to realize the optical distribution function. The method is suitable for protective connection of optical cables and distribution pigtails and is also suitable for being adopted by optical fiber terminal points in an optical fiber access network.
Present cabinet bottom plate is joined in marriage to light is mostly formed by monoblock corrosion resistant plate, and the business turn over cable position and the demand that the aperture was not necessarily fit for actual optical cable business turn over of reserving during the mounting plate lay the optical cable during operation on the scene, when the headspace is not enough, need dismantle the bottom plate and cut. Electric sparks generated by cutting the bottom plate are easy to cause fire disasters, and the normal operation of equipment in the machine room is affected, so that the cutting is required to be carried out outside a station, and the machine room is moved back and forth and repeatedly positioned, and the working time is prolonged. When the planned cable inlet hole position or the cut bottom plate operation is inaccurate, the situation that the optical cable cannot be arranged in the optical distribution cabinet from the newly expanded space is caused, and the operation needs to be repeated once again from the planned hole. The sharp saw blade and the generated dust, carbon monoxide, nitrogen oxide and other irritant gases threaten the personal safety of operators during cutting. Even if the cutting surface of the bottom plate of the optical distribution cabinet is processed, the cutting surface still can be sharp, and the hidden trouble that the optical cable is broken and the optical fiber is jumped is caused.
Patent document CN 105071230A discloses a power distribution cabinet frame, which comprises a plurality of longitudinal beams and a plurality of cross beams, wherein at least one cross beam is provided with a wire fixing part, the wire fixing part comprises a first cross plate arranged at the upper end of the cross beam, a second cross plate is arranged above the first cross plate, the first cross plate is connected with the second cross plate through a spring, the upper end of the second cross plate is provided with a wire placing pipe transversely arranged for placing a wire, the two ends of the wire placing pipe are sealed, the two ends of the cross beam are provided with connecting pieces protruding upwards, one end of the wire placing pipe is rotatably connected with the connecting piece corresponding to the left side of the cross beam, the other end of the wire placing pipe is rotatably connected with the connecting piece corresponding to the right side of the cross beam, the upper part of the pipe wall of the wire placing pipe is provided with a strip-shaped notch transversely arranged in the left and right direction, one end, the notched front and back side is equipped with a plurality of incoming lines mouths, can make things convenient for safe walking the line, however, the problem that the winding displacement is inefficiency, have the potential safety hazard when optical distribution cabinet bottom optical cable discrepancy cabinet can't be solved in this application. Patent document with publication number CN 105044869 a discloses a novel optical fiber distribution cabinet, which comprises a cabinet, wherein a left side upright post and a right side upright post are arranged on two sides of the cabinet, a row of fiber hanging wheels are arranged on the left side upright post, and a plurality of fiber jumping coils are arranged on the edge of the left side upright post; the upper half part of the right upright post is provided with a plurality of fiber hanging wheels, and the lower half part of the right upright post is provided with a plurality of bare fiber channels for binding; a fiber skipping wire passing groove, an integrated tray and a centralized optical cable stripping fixing plate are arranged between the left upright post and the right upright post from top to bottom, and a distributed optical cable stripping fixing plate is arranged on the right side of the cabinet. However, this application can not solve the problem that the opening of the bottom plate of the optical fiber distribution cabinet is not convenient enough for the optical fiber to go in and out.
Disclosure of Invention
In view of the above, the present invention provides an optical distribution cabinet which simplifies the work flow, shortens the working time of laying the optical cable, and ensures the personal and equipment safety, and facilitates the optical cable to enter the cabinet.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a make things convenient for cabinet is joined in marriage to light that optical cable goes into cabinet, includes the cabinet body, the base of the cabinet body includes bottom plate frame, a plurality of module board and a plurality of fixed slat, the bottom plate frame includes the rectangle frame and sets up a plurality of bracing pieces on one of them relative both sides of rectangle frame, and is a plurality of the module board sets up on the bottom plate frame, the module board is through adjacent two the bracing piece supports, and is a plurality of fixed slat sets up on the module board, fixed slat with the bracing piece is perpendicular, the relative both sides edge in addition of rectangle frame all sets up a plurality of first screws, the both ends of fixed slat all set up the second screw, first screw with the second screw passes through bolted connection.
Preferably, the longitudinal section of the support rod is in a convex shape.
Preferably, the cross section of the module plate is square, and the module plate is made of hard plastics.
Preferably, the bottom plate frame and the fixed lath are made of stainless steel materials.
Preferably, the lower part of the base of the cabinet body is provided with a plurality of universal wheels with brakes.
Preferably, the inner wall of the cabinet body is provided with a standby optical cable rack.
Preferably, the spare optical cable rack comprises an upper cross rod and a lower cross rod, a plurality of hooks are arranged on the lower side of the upper cross rod, and a plurality of cylindrical winding rods are arranged on the lower cross rod.
Preferably, a plurality of wire fixing clamping pieces are arranged on the upper cross rod and the lower cross rod.
Compared with the prior art, the invention has the following beneficial effects:
according to the optical distribution cabinet convenient for the optical cable to enter the cabinet, the base is divided into three layers, a plurality of support rods are arranged between two opposite sides of the rectangular frame at the lowest layer and used for supporting a plurality of module plates at the second layer, and a plurality of fixing battens at the third layer are used for fixing the module plates so as to prevent the square module plates from falling off; a plurality of module boards can be dismantled, and the optical distribution cabinet need take off the fixed slat bolt on the module board when the bottom trompil, will correspond the module board of position and tear open, and need not cut the bottom plate, and the optical cable goes out the income line very conveniently.
In addition, the longitudinal section shape of bracing piece is "protruding" shape, the module board passes through the ladder groove support of the both sides of bracing piece, the chucking module board of being convenient for, make after taking off one of them module board, all the other module boards still can the stable support, be difficult for dropping, the cross section of module board is the square, the equipartition is comparatively convenient in the rectangle frame, and neat pleasing to the eye, the module board adopts rigid plastic, the quality is light and durable, bottom plate frame and fixed slat adopt stainless steel, it is firm to support, set up the braking universal wheel under the base, convenient removal and fixed.
In addition, the internal wall of cabinet sets up reserve optical cable frame for accomodate unnecessary optical cable, guarantee that the cabinet is joined in marriage to light is inside winding displacement neat, reserve optical cable frame's last horizontal pole downside is equipped with the couple, is equipped with the wire winding pole on the sheer pole, the couple is used for fixing the wire winding beginning, and the wire winding is followed the couple extremely wire winding pole circulates, go up the horizontal pole with distance between the sheer pole can reduce wire-wound density to make wire winding or outlet speed faster, a plurality of wire winding poles can be respectively around different types of optical cable, avoid the wire winding confusion, go up the horizontal pole with set up a plurality of solidus fasteners on the sheer pole, be used for fixed wire winding end.
Drawings
FIG. 1 is a schematic view of the construction of a floor frame according to the present invention;
FIG. 2 is a schematic view of the structure of the fixing strip of the present invention;
FIG. 3 is a schematic structural view of a cable shelf according to the present invention;
fig. 4 is a schematic structural diagram of the present invention.
Detailed Description
In order to better understand the present invention, the following examples are further provided to clearly illustrate the contents of the present invention, but the contents of the present invention are not limited to the following examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.
Example one
As shown in fig. 1, 2 and 4, an optical distribution cabinet convenient for an optical cable to enter the cabinet comprises a cabinet body 1, wherein a base of the cabinet body 1 comprises a bottom plate frame, a plurality of module plates 2 and a plurality of fixed strips 3, the bottom plate frame comprises a rectangular frame 4 and a plurality of support rods 5 arranged on two opposite sides of one of the rectangular frame 4, the plurality of module plates 2 are arranged on the bottom plate frame, the module plates 2 are supported by two adjacent support rods 5, the plurality of fixed strips 3 are arranged on the module plates 2, the fixed strips 3 are perpendicular to the support rods 5, a plurality of first screw holes 6 are arranged on two opposite edges of the rectangular frame 4, second screw holes 7 are arranged at two ends of each fixed strip 3, and the first screw holes 6 are connected with the second screw holes 7 through bolts.
Specifically, the longitudinal section shape of bracing piece 5 is "protruding" shape, the quantity of bracing piece is 3, the cross section of module board 2 is the square, the quantity of module board is 16, the material of module board 2 is rigid plastic, the bottom plate frame with the material of fixed slat 3 is stainless steel material, the quantity of fixed slat is 4.
According to the optical distribution cabinet convenient for the optical cable to enter the cabinet, the base is divided into three layers, a plurality of support rods are arranged between two opposite sides of the rectangular frame at the lowest layer and used for supporting a plurality of module plates at the second layer, and a plurality of fixing battens at the third layer are used for fixing the module plates, so that the square module plates are prevented from falling off; a plurality of module boards can be dismantled, and the optical distribution cabinet need take off the fixed slat bolt on the module board when the bottom trompil, will correspond the module board of position and tear open, and need not cut the bottom plate, and the optical cable goes out the income line very conveniently. In addition, the longitudinal section shape of bracing piece is "protruding" shape, the module board passes through the ladder groove support of the both sides of bracing piece, the chucking module board of being convenient for, make after taking off one of them module board, all the other module boards still can the stable support, be difficult for dropping, the cross section of module board is the square, the equipartition is comparatively convenient in the rectangle frame, and neat pleasing to the eye, the module board adopts rigid plastic, the quality is light and durable, bottom plate frame and fixed slat adopt stainless steel, it is firm to support.
The invention can flexibly adapt to the optical cable entering optical distribution from each position of the bottom plate without the aid of tool opening and plugging, the operation of opening and sealing the hole is reversible, and the plugging bottom plate of the optical distribution cabinet is convenient to enter and exit by ensuring the integral stability of the bottom plate, thereby solving the defect that the existing cabinet bottom can not flexibly support the optical cable entering and exiting the optical distribution cabinet and realizing the effective support of the optical cable changing work. On the basis of not changing materials, the plugging bottom plate is redesigned in structure, research and development time and cost are greatly reduced, original safety regulations can be met, a large effect can be obtained with small investment, and burden of workers is relieved. The method makes a contribution to the reliable operation of the communication network and the construction and development of the power grid.
Example two
As shown in fig. 1, 2 and 4, an optical distribution cabinet convenient for an optical cable to enter the cabinet comprises a cabinet body 1, wherein a base of the cabinet body 1 comprises a bottom plate frame, a plurality of module plates 2 and a plurality of fixed strips 3, the bottom plate frame comprises a rectangular frame 4 and a plurality of support rods 5 arranged on two opposite sides of one of the rectangular frame 4, the plurality of module plates 2 are arranged on the bottom plate frame, the module plates 2 are supported by two adjacent support rods 5, the plurality of fixed strips 3 are arranged on the module plates 2, the fixed strips 3 are perpendicular to the support rods 5, a plurality of first screw holes 6 are arranged on two opposite edges of the rectangular frame 4, second screw holes 7 are arranged at two ends of each fixed strip 3, and the first screw holes 6 are connected with the second screw holes 7 through bolts.
Specifically, the longitudinal section shape of bracing piece 5 is "protruding" shape, the quantity of bracing piece is 3, the cross section of module board 2 is the square, the quantity of module board is 16, the material of module board 2 is rigid plastic, the bottom plate frame with the material of fixed slat 3 is stainless steel material, the quantity of fixed slat is 4.
The optical distribution cabinet facilitating the optical cable to enter the cabinet of the embodiment of the invention is different from the first embodiment in that: the lower part of the base of the cabinet body 1 is provided with a plurality of universal wheels with brakes.
EXAMPLE III
As shown in fig. 1 to 4, a light distribution cabinet convenient for an optical cable to enter the cabinet comprises a cabinet body 1, wherein a base of the cabinet body 1 comprises a bottom plate frame, a plurality of module plates 2 and a plurality of fixed slats 3, the bottom plate frame comprises a rectangular frame 4 and a plurality of support rods 5 arranged on two opposite sides of one of the rectangular frame 4, the module plates 2 are arranged on the bottom plate frame, the module plates 2 are supported by the adjacent two support rods 5, the fixed slats 3 are arranged on the module plates 2, the fixed slats 3 are perpendicular to the support rods 5, a plurality of first screw holes 6 are arranged on two opposite edges of the rectangular frame 4, second screw holes 7 are arranged at two ends of each fixed slat 3, and the first screw holes 6 are connected with the second screw holes 7 through bolts.
Specifically, the longitudinal section shape of bracing piece 5 is "protruding" shape, the quantity of bracing piece is 3, the cross section of module board 2 is the square, the quantity of module board is 16, the material of module board 2 is rigid plastic, the bottom plate frame with the material of fixed slat 3 is stainless steel material, the quantity of fixed slat is 4.
The optical distribution cabinet facilitating the optical cable to enter the cabinet of the embodiment of the invention is different from the first embodiment and the second embodiment in that: the cabinet body 1 inner wall sets up reserve optical cable frame, reserve optical cable frame includes entablature 9 and sheer pole 10, 9 downside of entablature set up a plurality of couples 11, set up a plurality of cylindrical wire wrapping poles 12 on the sheer pole 10, entablature 9 with all set up a plurality of solidus fastener 13 on the sheer pole 10.
According to the optical distribution cabinet convenient for the optical cable to enter the cabinet, the base is divided into three layers, a plurality of support rods are arranged between two opposite sides of the rectangular frame at the lowest layer and used for supporting a plurality of module plates at the second layer, and a plurality of fixing battens at the third layer are used for fixing the module plates, so that the square module plates are prevented from falling off; a plurality of module plates can be disassembled, when the bottom of the optical distribution cabinet needs to be provided with holes, the fixed slat bolts on the module plates are taken down, the module plates at the corresponding positions are disassembled, the bottom plate does not need to be cut, and the optical cable is very convenient to go out of and enter the line; the longitudinal section of the supporting rod is in a convex shape, the module plates are supported through stepped grooves on two sides of the supporting rod, the module plates are conveniently clamped, after one module plate is taken down, the other module plates can still be stably supported and are not easy to fall off, the cross sections of the module plates are square, the module plates are conveniently and regularly distributed in the rectangular frame and are attractive, the module plates are made of hard plastics, the module plates are light in weight, firm and durable, the bottom plate frame and the fixed strip plates are made of stainless steel materials, the supporting is firm, and the braking universal wheels are arranged below the base and are convenient to move and fix; the internal wall of cabinet sets up reserve optical cable frame for accomodate unnecessary optical cable, guarantee that the cabinet is joined in marriage to light is inside winding displacement neat, reserve optical cable frame's last horizontal pole downside is equipped with the couple, is equipped with the wire winding pole on the sheer pole, the couple is used for the fixed wire winding beginning, and the wire winding is followed the couple extremely wire winding pole circulates, go up the horizontal pole with distance between the sheer pole can reduce wire-wound density to make wire winding or outlet speed faster, a plurality of wire winding poles can be respectively around different types of optical cable, avoid the wire winding confusion, go up the horizontal pole with set up a plurality of solidus fasteners on the sheer pole, be used for fixed wire winding end.
Example four
As shown in fig. 1, 2 and 4, an optical distribution cabinet convenient for an optical cable to enter the cabinet comprises a cabinet body 1, wherein a base of the cabinet body 1 comprises a bottom plate frame, a plurality of module plates 2 and a plurality of fixed strips 3, the bottom plate frame comprises a rectangular frame 4 and a plurality of support rods 5 arranged on two opposite sides of one of the rectangular frame 4, the plurality of module plates 2 are arranged on the bottom plate frame, the module plates 2 are supported by two adjacent support rods 5, the plurality of fixed strips 3 are arranged on the module plates 2, the fixed strips 3 are perpendicular to the support rods 5, a plurality of first screw holes 6 are arranged on two opposite edges of the rectangular frame 4, second screw holes 7 are arranged at two ends of each fixed strip 3, and the first screw holes 6 are connected with the second screw holes 7 through bolts.
Specifically, the longitudinal section shape of bracing piece 5 is "protruding" shape, the quantity of bracing piece is 3, the cross section of module board 2 is the square, the quantity of module board is 16, the material of module board 2 is rigid plastic, the bottom plate frame with the material of fixed slat 3 is stainless steel material, the quantity of fixed slat is 4, the base lower part of the cabinet body sets up a plurality of universal wheels that have the braking.
The optical distribution cabinet facilitating the optical cable to enter the cabinet of the embodiment of the invention is different from the first, second and third embodiments in that: the inner wall lower part of the cabinet body is equipped with the optical cable and introduces the unit, makes things convenient for the optical cable to go into the cabinet and fixes accomodating, the middle part of the cabinet body sets up a plurality of 12 cores and exempts from to jump fine tail optical fiber and draws forth the tray, cabinet body below right side is provided with a plurality of 12 cores high density and melts and joins in marriage integrated tray, the fixed earthing device that shells of opening of internal front of cabinet and back below optical cable.
In the embodiment of the invention, a plurality of 12-core fiber-skipping-free tail fiber leading-out trays are arranged in the cabinet body, and a plurality of optical cable joints are arranged on the 12-core fiber-skipping-free tail fiber leading-out trays and are used for accommodating optical cables, thereby reducing the number of adapters and fiber skipping in a distribution area, lowering the cost, solving the problem of excess length of fiber skipping, improving the space utilization rate of the cabinet body, and improving the operation and maintenance convenience of products by clear division of functional areas in the cabinet body; the cabinet body is internally provided with an optical cable fixing stripping grounding device for stripping, protecting and grounding the ribbon optical cable, and can effectively avoid the common distortion phenomenon at the stripping position of the ribbon optical cable.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a make things convenient for cabinet is joined in marriage to light of optical cable income cabinet, includes the cabinet body, its characterized in that: the base of the cabinet body comprises a bottom plate frame, a plurality of module plates and a plurality of fixed strips, the bottom plate frame comprises rectangular frames and a plurality of support rods arranged at two opposite sides of one of the rectangular frames, the plurality of module plates are arranged on the bottom plate frame and are supported by two adjacent support rods, the plurality of fixed strips are arranged on the module plates and are vertical to the support rods, a plurality of first screw holes are arranged at the other two opposite edges of the rectangular frame, second screw holes are arranged at two ends of each fixed strip, the first screw holes are connected with the second screw holes through bolts, a standby optical cable rack is arranged on the inner wall of the cabinet body and comprises an upper cross rod and a lower cross rod, a plurality of hooks are arranged at the lower side of the upper cross rod, and a plurality of cylindrical winding rods are arranged on the lower cross rod, a plurality of wire fixing clamping pieces are arranged on the upper cross rod and the lower cross rod; the inner wall lower part of the cabinet body is equipped with the optical cable and introduces the unit, makes things convenient for the optical cable to go into the cabinet and fixes accomodating, the middle part of the cabinet body sets up a plurality of 12 cores and exempts from to jump fine tail optical fiber and draws forth the tray, cabinet body below right side is provided with a plurality of 12 cores high density and melts and joins in marriage integrated tray, the fixed earthing device that shells of opening of internal front of cabinet and back below optical cable.
2. The optical distribution cabinet for facilitating entry of optical cables into the cabinet of claim 1, wherein: the longitudinal section of the support rod is in a convex shape.
3. The optical distribution cabinet for facilitating entry of optical cables into the cabinet of claim 2, wherein: the cross section of the module board is square, and the module board is made of hard plastics.
4. The optical distribution cabinet for facilitating entry of optical cables into the cabinet of claim 3, wherein: the bottom plate frame and the fixed laths are made of stainless steel materials.
5. The optical distribution cabinet for facilitating entry of optical cables into the cabinet of claim 4, wherein: the lower part of the base of the cabinet body is provided with a plurality of universal wheels with brakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518800.0A CN108693610B (en) | 2018-05-25 | 2018-05-25 | Optical distribution cabinet convenient for optical cable to enter cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518800.0A CN108693610B (en) | 2018-05-25 | 2018-05-25 | Optical distribution cabinet convenient for optical cable to enter cabinet |
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| Publication Number | Publication Date |
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| CN108693610A CN108693610A (en) | 2018-10-23 |
| CN108693610B true CN108693610B (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810518800.0A Active CN108693610B (en) | 2018-05-25 | 2018-05-25 | Optical distribution cabinet convenient for optical cable to enter cabinet |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2314501Y (en) * | 1997-09-16 | 1999-04-14 | 潮阳市广通电信设备公司 | Distributor for telecommunication cables |
| CN202196208U (en) * | 2011-08-01 | 2012-04-18 | 上海汇珏网络通信设备有限公司 | Indoor optical fiber distribution case cable inlet device used for corridor |
| CN203722166U (en) * | 2013-12-31 | 2014-07-16 | 浙江牧天电力器材有限公司 | Improved cable distribution device used for electric cabinet |
| CN205027944U (en) * | 2015-09-07 | 2016-02-10 | 国网浙江省电力公司绍兴供电公司 | Novel optic fibre distribution cabinet |
| CN205643449U (en) * | 2016-05-26 | 2016-10-12 | 国网冀北电力有限公司张家口供电公司 | A prevent bird board for batch meter inlet and outlet holes |
| CN206118213U (en) * | 2016-08-30 | 2017-04-19 | 安徽科力信息产业有限责任公司 | Protection against rodents dampproof device of traffic signal system rack base entrance hole |
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2018
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